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a/.venv_haddock/lib/python3.12/site-packages/narwhals-2.19.0.dist-info/INSTALLER b/.venv_haddock/lib/python3.12/site-packages/narwhals-2.19.0.dist-info/INSTALLER new file mode 100644 index 0000000000000000000000000000000000000000..a1b589e38a32041e49332e5e81c2d363dc418d68 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals-2.19.0.dist-info/INSTALLER @@ -0,0 +1 @@ +pip diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals-2.19.0.dist-info/METADATA b/.venv_haddock/lib/python3.12/site-packages/narwhals-2.19.0.dist-info/METADATA new file mode 100644 index 0000000000000000000000000000000000000000..74ba4634dd6105471508ca161f94104c2147fed6 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals-2.19.0.dist-info/METADATA @@ -0,0 +1,349 @@ +Metadata-Version: 2.4 +Name: narwhals +Version: 2.19.0 +Summary: Extremely lightweight compatibility layer between dataframe libraries +Project-URL: Homepage, https://github.com/narwhals-dev/narwhals +Project-URL: Documentation, https://narwhals-dev.github.io/narwhals/ +Project-URL: Repository, https://github.com/narwhals-dev/narwhals +Project-URL: Bug Tracker, https://github.com/narwhals-dev/narwhals/issues +Author-email: Marco Gorelli +License: MIT License + + Copyright (c) 2024 to present, Marco Gorelli + + Permission is hereby granted, free of charge, to any person obtaining a copy + of this software and associated documentation files (the "Software"), to deal + in the Software without restriction, including without limitation the rights + to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + copies of the Software, and to permit persons to whom the Software is + furnished to do so, subject to the following conditions: + + The above copyright notice and this permission notice shall be included in all + copies or substantial portions of the Software. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + SOFTWARE. +License-File: LICENSE.md +Keywords: cudf,dask,dataframes,interoperability,modin,pandas,polars,pyarrow +Classifier: Development Status :: 5 - Production/Stable +Classifier: License :: OSI Approved :: MIT License +Classifier: Operating System :: OS Independent +Classifier: Programming Language :: Python :: 3 +Classifier: Programming Language :: Python :: 3.9 +Classifier: Programming Language :: Python :: 3.10 +Classifier: Programming Language :: Python :: 3.11 +Classifier: Programming Language :: Python :: 3.12 +Classifier: Programming Language :: Python :: 3.13 +Classifier: Programming Language :: Python :: 3.14 +Classifier: Programming Language :: Python :: Free Threading :: 2 - Beta +Classifier: Typing :: Typed +Requires-Python: >=3.9 +Provides-Extra: cudf +Requires-Dist: cudf-cu12>=24.10.0; extra == 'cudf' +Provides-Extra: dask +Requires-Dist: dask[dataframe]>=2024.8; extra == 'dask' +Provides-Extra: duckdb +Requires-Dist: duckdb>=1.1; extra == 'duckdb' +Provides-Extra: ibis +Requires-Dist: ibis-framework>=6.0.0; extra == 'ibis' +Requires-Dist: packaging; extra == 'ibis' +Requires-Dist: pyarrow-hotfix; extra == 'ibis' +Requires-Dist: rich; extra == 'ibis' +Provides-Extra: modin +Requires-Dist: modin; extra == 'modin' +Provides-Extra: pandas +Requires-Dist: pandas>=1.1.3; extra == 'pandas' +Provides-Extra: polars +Requires-Dist: polars>=0.20.4; extra == 'polars' +Provides-Extra: pyarrow +Requires-Dist: pyarrow>=13.0.0; extra == 'pyarrow' +Provides-Extra: pyspark +Requires-Dist: pyspark>=3.5.0; extra == 'pyspark' +Provides-Extra: pyspark-connect +Requires-Dist: pyspark[connect]>=3.5.0; extra == 'pyspark-connect' +Provides-Extra: sql +Requires-Dist: duckdb>=1.1; extra == 'sql' +Requires-Dist: sqlparse; extra == 'sql' +Provides-Extra: sqlframe +Requires-Dist: sqlframe!=3.39.3,>=3.22.0; extra == 'sqlframe' +Description-Content-Type: text/markdown + +# Narwhals + +

+ narwhals_small +

+ +[![PyPI version](https://badge.fury.io/py/narwhals.svg)](https://badge.fury.io/py/narwhals) +[![Downloads](https://static.pepy.tech/badge/narwhals/month)](https://pepy.tech/project/narwhals) +[![Trusted publishing](https://img.shields.io/badge/Trusted_publishing-Provides_attestations-bright_green)](https://peps.python.org/pep-0740/) +[![PYPI - Types](https://img.shields.io/pypi/types/narwhals)](https://pypi.org/project/narwhals) + +Extremely lightweight and extensible compatibility layer between dataframe libraries! + +- **Full API support**: cuDF, Modin, pandas, Polars, PyArrow. +- **Lazy-only support**: Daft, Dask, DuckDB, Ibis, PySpark, SQLFrame. + +Seamlessly support all, without depending on any! + +- ✅ **Just use** [a subset of **the Polars API**](https://narwhals-dev.github.io/narwhals/api-reference/), no need to learn anything new +- ✅ **Zero dependencies**, Narwhals only uses what + the user passes in so your library can stay lightweight +- ✅ Separate **lazy** and eager APIs, use **expressions** +- ✅ Support pandas' complicated type system and index, without + either getting in the way +- ✅ **100% branch coverage**, tested against pandas and Polars nightly builds +- ✅ **Negligible overhead**, see [overhead](https://narwhals-dev.github.io/narwhals/overhead/) +- ✅ Let your IDE help you thanks to **full static typing**, see [typing](https://narwhals-dev.github.io/narwhals/api-reference/typing/) +- ✅ **Perfect backwards compatibility policy**, + see [stable api](https://narwhals-dev.github.io/narwhals/backcompat/) for how to opt-in + +Get started! + +- [Read the documentation](https://narwhals-dev.github.io/narwhals/) +- [Chat with us on Discord!](https://discord.gg/V3PqtB4VA4) +- [Join our community call](https://calendar.google.com/calendar/embed?src=27ff6dc5f598c1d94c1f6e627a1aaae680e2fac88f848bda1f2c7946ae74d5ab%40group.calendar.google.com) +- [Read the contributing guide](https://github.com/narwhals-dev/narwhals/blob/main/CONTRIBUTING.md) + +
+Table of contents + +- [Narwhals](#narwhals) + - [Installation](#installation) + - [Usage](#usage) + - [Example](#example) + - [Scope](#scope) + - [Roadmap](#roadmap) + - [Used by](#used-by) + - [Sponsors and institutional partners](#sponsors-and-institutional-partners) + - [Support](#support) + - [Appears on](#appears-on) + - [Why "Narwhals"?](#why-narwhals) + +
+ +## Installation + +- pip (recommended, as it's the most up-to-date) + ``` + pip install narwhals + ``` +- conda-forge (also fine, but the latest version may take longer to appear) + ``` + conda install -c conda-forge narwhals + ``` + +## Usage + +There are three steps to writing dataframe-agnostic code using Narwhals: + +1. use `narwhals.from_native` to wrap a pandas/Polars/Modin/cuDF/PyArrow + DataFrame/LazyFrame in a Narwhals class +2. use the [subset of the Polars API supported by Narwhals](https://narwhals-dev.github.io/narwhals/api-reference/) +3. use `narwhals.to_native` to return an object to the user in its original + dataframe flavour. For example: + + - if you started with pandas, you'll get pandas back + - if you started with Polars, you'll get Polars back + - if you started with Modin, you'll get Modin back (and compute will be distributed) + - if you started with cuDF, you'll get cuDF back (and compute will happen on GPU) + - if you started with PyArrow, you'll get PyArrow back + +

+ narwhals_gif + +

+ +## Example + +Narwhals allows you to define dataframe-agnostic functions. For example: + +```python +import narwhals as nw +from narwhals.typing import IntoFrameT + + +def agnostic_function( + df_native: IntoFrameT, + date_column: str, + price_column: str, +) -> IntoFrameT: + return ( + nw.from_native(df_native) + .group_by(nw.col(date_column).dt.truncate("1mo")) + .agg(nw.col(price_column).mean()) + .sort(date_column) + .to_native() + ) +``` + +You can then pass `pandas.DataFrame`, `polars.DataFrame`, `polars.LazyFrame`, `duckdb.DuckDBPyRelation`, +`pyspark.sql.DataFrame`, `pyarrow.Table`, and more, to `agnostic_function`. In each case, no additional +dependencies will be required, and computation will stay native to the input library: + +```python +import pandas as pd +import polars as pl +from datetime import datetime + +data = { + "date": [datetime(2020, 1, 1), datetime(2020, 1, 8), datetime(2020, 2, 3)], + "price": [1, 4, 3], +} +print("pandas result:") +print(agnostic_function(pd.DataFrame(data), "date", "price")) +print() +print("Polars result:") +print(agnostic_function(pl.DataFrame(data), "date", "price")) +``` + +```terminal +pandas result: + date price +0 2020-01-01 2.5 +1 2020-02-01 3.0 + +Polars result: +shape: (2, 2) +┌─────────────────────┬───────┐ +│ date ┆ price │ +│ --- ┆ --- │ +│ datetime[μs] ┆ f64 │ +╞═════════════════════╪═══════╡ +│ 2020-01-01 00:00:00 ┆ 2.5 │ +│ 2020-02-01 00:00:00 ┆ 3.0 │ +└─────────────────────┴───────┘ +``` + +See the [tutorial](https://narwhals-dev.github.io/narwhals/basics/dataframe/) for several examples! + +## Scope + +- Do you maintain a dataframe-consuming library? +- Do you have a specific Polars function in mind that you would like Narwhals to have in order to make your work easier? + +If you said yes to both, we'd love to hear from you! + +## Roadmap + +See [roadmap discussion on GitHub](https://github.com/narwhals-dev/narwhals/discussions/1370) +for an up-to-date plan of future work. + +## Used by + +Join the party! + +- [altair](https://github.com/vega/altair/) +- [bokeh](https://github.com/bokeh/bokeh) +- [darts](https://github.com/unit8co/darts) +- [fairlearn](https://github.com/fairlearn/fairlearn) +- [formulaic](https://github.com/matthewwardrop/formulaic) +- [gt-extras](https://github.com/posit-dev/gt-extras) +- [hierarchicalforecast](https://github.com/Nixtla/hierarchicalforecast) +- [marimo](https://github.com/marimo-team/marimo) +- [metalearners](https://github.com/Quantco/metalearners) +- [mosaic](https://github.com/uwdata/mosaic) +- [panel-graphic-walker](https://github.com/panel-extensions/panel-graphic-walker) +- [plotly](https://plotly.com) +- [pointblank](https://github.com/posit-dev/pointblank) +- [pymarginaleffects](https://github.com/vincentarelbundock/pymarginaleffects) +- [pyreadstat](https://github.com/Roche/pyreadstat) +- [py-shiny](https://github.com/posit-dev/py-shiny) +- [rio](https://github.com/rio-labs/rio) +- [scikit-lego](https://github.com/koaning/scikit-lego) +- [scikit-playtime](https://github.com/koaning/scikit-playtime) +- [tabmat](https://github.com/Quantco/tabmat) +- [tea-tasting](https://github.com/e10v/tea-tasting) +- [timebasedcv](https://github.com/FBruzzesi/timebasedcv) +- [tubular](https://github.com/lvgig/tubular) +- [Validoopsie](https://github.com/akmalsoliev/Validoopsie) +- [vegafusion](https://github.com/vega/vegafusion) +- [wimsey](https://github.com/benrutter/wimsey) + +Feel free to add your project to the list if it's missing, and/or +[chat with us on Discord](https://discord.gg/V3PqtB4VA4) if you'd like any support. + +## Sponsors and institutional partners + +Narwhals is 100% independent, community-driven, and community-owned. +We are extremely grateful to the following organisations for having +provided some funding / development time: + +- [Quansight Labs](https://labs.quansight.org) +- [Quansight Futures](https://www.qi.ventures) +- [OpenTeams](https://www.openteams.com) +- [POSSEE initiative](https://possee.org) +- [BYU-Idaho](https://www.byui.edu) + +If you contribute to Narwhals on your organization's time, please let us know. We'd be happy to add your employer +to this list! + +## Support + +If you'd like to say "thank you", please give us a ⭐ star ⭐. + +Please contact [hello_narwhals@proton.me](hello_narwhals@proton.me) if you would like to: + +- Receive professional support (e.g., if you're using or would like to use Narwhals at your company). +- Have any Narwhals fixes / features prioritised. +- Commission any Narwhals plugins for new backends. + +## Appears on + +Narwhals has been featured in several talks, podcasts, and blog posts: + +- [Inspiring Computing Podcast](https://www.inspiringcomputing.com/2107763/episodes/16702460-the-rise-of-narwhals-in-open-source) + The Rise of Narwhals in Open-Source + +- [PyCon DE & PyData 2025](https://youtu.be/DJk782DWcss) + How Narwhals is silently bringing pandas, Polars, DuckDB, PyArrow, and more together + +- [The Python Exchange March 2025](https://youtu.be/TvFWFlK-2po) + What Can Narwhals Do for You? + +- [PyData London 2025](https://youtu.be/r2PxJlO7_QA) + How Narwhals brings Polars, DuckDB, PyArrow, & pandas together + +- [Talk Python to me Podcast](https://youtu.be/FSH7BZ0tuE0) + Ahoy, Narwhals are bridging the data science APIs + +- [Python Bytes Podcast](https://www.youtube.com/live/N7w_ESVW40I?si=y-wN1uCsAuJOKlOT&t=382) + Episode 402, topic #2 + +- [Super Data Science: ML & AI Podcast](https://www.youtube.com/watch?v=TeG4U8R0U8U) + Narwhals: For Pandas-to-Polars DataFrame Compatibility + +- [Sample Space Podcast | probabl](https://youtu.be/8hYdq4sWbbQ?si=WG0QP1CZ6gkFf18b) + How Narwhals has many end users ... that never use it directly. - Marco Gorelli + +- [The Real Python Podcast](https://www.youtube.com/watch?v=w5DFZbFYzCM) + Narwhals: Expanding DataFrame Compatibility Between Libraries + +- [Pycon Lithuania 2024](https://www.youtube.com/watch?v=-mdx7Cn6_6E) + Marco Gorelli - DataFrame interoperatiblity - what's been achieved, and what comes next? + +- [Pycon Italy 2024](https://www.youtube.com/watch?v=3IqUli9XsmQ) + How you can write a dataframe-agnostic library - Marco Gorelli + +- [Polars Blog Post](https://pola.rs/posts/lightweight_plotting/) + Polars has a new lightweight plotting backend + +- [Quansight Labs blog post (w/ Scikit-Lego)](https://labs.quansight.org/blog/scikit-lego-narwhals) + How Narwhals and scikit-lego came together to achieve dataframe-agnosticism + +## Why "Narwhals"? + +[Coz they are so awesome](https://youtu.be/ykwqXuMPsoc?si=A-i8LdR38teYsos4). + +Thanks to [Olha Urdeichuk](https://www.fiverr.com/olhaurdeichuk) for the illustration! diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals-2.19.0.dist-info/RECORD b/.venv_haddock/lib/python3.12/site-packages/narwhals-2.19.0.dist-info/RECORD new file mode 100644 index 0000000000000000000000000000000000000000..72e6fe01ae6216da9cfe77feaef4d15b77e6fcb9 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals-2.19.0.dist-info/RECORD @@ -0,0 +1,330 @@ 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a/.venv_haddock/lib/python3.12/site-packages/narwhals-2.19.0.dist-info/licenses/LICENSE.md b/.venv_haddock/lib/python3.12/site-packages/narwhals-2.19.0.dist-info/licenses/LICENSE.md new file mode 100644 index 0000000000000000000000000000000000000000..ae398c422c289afc195abc20e6dadcaa120df32e --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals-2.19.0.dist-info/licenses/LICENSE.md @@ -0,0 +1,21 @@ +MIT License + +Copyright (c) 2024 to present, Marco Gorelli + +Permission is hereby granted, free of charge, to any person obtaining a copy +of this software and associated documentation files (the "Software"), to deal +in the Software without restriction, including without limitation the rights +to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +copies of the Software, and to permit persons to whom the Software is +furnished to do so, subject to the following conditions: + +The above copyright notice and this permission notice shall be included in all +copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE +SOFTWARE. diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/dataframe.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/dataframe.py new file mode 100644 index 0000000000000000000000000000000000000000..bd602efd5243396e8ef088da2572bde33c39dd2a --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/dataframe.py @@ -0,0 +1,3352 @@ +from __future__ import annotations + +from abc import abstractmethod +from functools import partial +from itertools import chain +from typing import ( + TYPE_CHECKING, + Any, + Callable, + ClassVar, + Generic, + Literal, + NoReturn, + TypeVar, + get_args, + overload, +) + +from narwhals._exceptions import issue_warning +from narwhals._expression_parsing import ( + _parse_into_expr, + check_expressions_preserve_length, + is_scalar_like, +) +from narwhals._typing import Arrow, Pandas, _LazyAllowedImpl, _LazyFrameCollectImpl +from narwhals._utils import ( + Implementation, + Version, + _Implementation, + can_lazyframe_collect, + check_columns_exist, + flatten, + generate_repr, + is_compliant_dataframe, + is_compliant_lazyframe, + is_eager_allowed, + is_index_selector, + is_iterator, + is_lazy_allowed, + is_list_of, + is_sequence_like, + is_slice_none, + predicates_contains_list_of_bool, + qualified_type_name, + supports_arrow_c_stream, + zip_strict, +) +from narwhals.dependencies import is_numpy_array_2d, is_pyarrow_table +from narwhals.exceptions import ( + ColumnNotFoundError, + InvalidOperationError, + PerformanceWarning, +) +from narwhals.functions import _from_dict_no_backend, _is_into_schema +from narwhals.schema import Schema +from narwhals.series import Series +from narwhals.translate import to_native + +if TYPE_CHECKING: + from collections.abc import Iterable, Iterator, Mapping, Sequence + from io import BytesIO + from pathlib import Path + from types import ModuleType + + import pandas as pd + import polars as pl + import pyarrow as pa + from typing_extensions import Concatenate, ParamSpec, Self, TypeAlias + + from narwhals._compliant import CompliantDataFrame, CompliantLazyFrame + from narwhals._compliant.typing import CompliantExprAny + from narwhals._expression_parsing import ExprMetadata + from narwhals._translate import IntoArrowTable + from narwhals._typing import EagerAllowed, IntoBackend, LazyAllowed, Polars + from narwhals.dtypes import DType + from narwhals.group_by import GroupBy, LazyGroupBy + from narwhals.typing import ( + AsofJoinStrategy, + IntoDataFrame, + IntoExpr, + IntoFrame, + IntoLazyFrame, + IntoSchema, + JoinStrategy, + MultiColSelector as _MultiColSelector, + MultiIndexSelector as _MultiIndexSelector, + PivotAgg, + SingleColSelector, + SingleIndexSelector, + SizeUnit, + UniqueKeepStrategy, + _2DArray, + ) + + PS = ParamSpec("PS") + Incomplete: TypeAlias = Any + +_FrameT = TypeVar("_FrameT", bound="IntoFrame") +LazyFrameT = TypeVar("LazyFrameT", bound="IntoLazyFrame") +DataFrameT = TypeVar("DataFrameT", bound="IntoDataFrame") +R = TypeVar("R") + +MultiColSelector: TypeAlias = "_MultiColSelector[Series[Any]]" +MultiIndexSelector: TypeAlias = "_MultiIndexSelector[Series[Any]]" + + +class BaseFrame(Generic[_FrameT]): + _compliant_frame: Any + _level: Literal["full", "lazy", "interchange"] + + implementation: _Implementation = _Implementation() + """Return [`narwhals.Implementation`][] of native frame. + + This can be useful when you need to use special-casing for features outside of + Narwhals' scope - for example, when dealing with pandas' Period Dtype. + + Examples: + >>> import narwhals as nw + >>> import pandas as pd + >>> df_native = pd.DataFrame({"a": [1, 2, 3]}) + >>> df = nw.from_native(df_native) + >>> df.implementation + + >>> df.implementation.is_pandas() + True + >>> df.implementation.is_pandas_like() + True + >>> df.implementation.is_polars() + False + """ + + @property + @abstractmethod + def _compliant(self) -> Any: ... + + def __native_namespace__(self) -> ModuleType: + return self._compliant_frame.__native_namespace__() # type: ignore[no-any-return] + + def __narwhals_namespace__(self) -> Any: + return self._compliant_frame.__narwhals_namespace__() + + def _with_compliant(self, df: Any) -> Self: + # construct, preserving properties + return self.__class__(df, level=self._level) # type: ignore[call-arg] + + def _flatten_and_extract( + self, *exprs: IntoExpr | Iterable[IntoExpr], **named_exprs: IntoExpr + ) -> list[CompliantExprAny]: + # Process `args` and `kwargs`, extracting underlying objects as we go. + # NOTE: Strings are interpreted as column names. + out_exprs = [] + ns = self.__narwhals_namespace__() + parse = partial( + _parse_into_expr, backend=self._compliant._implementation, allow_literal=False + ) + all_exprs = chain( + (parse(x) for x in flatten(exprs)), + (parse(expr).alias(alias) for alias, expr in named_exprs.items()), + ) + for expr in all_exprs: + ce = expr._to_compliant_expr(ns) + out_exprs.append(ce) + self._validate_metadata(ce._metadata) + return out_exprs + + def _extract_compliant_frame(self, other: Self | Any, /) -> Any: + if isinstance(other, type(self)): + return other._compliant_frame + msg = f"Expected `other` to be a {qualified_type_name(self)!r}, got: {qualified_type_name(other)!r}" + raise TypeError(msg) + + def _check_columns_exist(self, subset: Sequence[str]) -> ColumnNotFoundError | None: + return check_columns_exist(subset, available=self.columns) + + @abstractmethod + def _validate_metadata(self, metadata: ExprMetadata) -> None: # pragma: no cover + pass + + @property + def schema(self) -> Schema: + return Schema(self._compliant_frame.schema.items()) + + def collect_schema(self) -> Schema: + native_schema = dict(self._compliant_frame.collect_schema()) + + return Schema(native_schema) + + def pipe( + self, + function: Callable[Concatenate[Self, PS], R], + *args: PS.args, + **kwargs: PS.kwargs, + ) -> R: + return function(self, *args, **kwargs) + + def drop_nulls(self, subset: str | list[str] | None) -> Self: + subset = [subset] if isinstance(subset, str) else subset + return self._with_compliant(self._compliant_frame.drop_nulls(subset=subset)) + + @property + def columns(self) -> list[str]: + return self._compliant_frame.columns # type: ignore[no-any-return] + + def with_columns( + self, *exprs: IntoExpr | Iterable[IntoExpr], **named_exprs: IntoExpr + ) -> Self: + compliant_exprs = self._flatten_and_extract(*exprs, **named_exprs) + compliant_exprs = [ + compliant_expr.broadcast() + if is_scalar_like(compliant_expr) + else compliant_expr + for compliant_expr in compliant_exprs + ] + return self._with_compliant(self._compliant_frame.with_columns(*compliant_exprs)) + + def select( + self, *exprs: IntoExpr | Iterable[IntoExpr], **named_exprs: IntoExpr + ) -> Self: + flat_exprs = tuple(flatten(exprs)) + if flat_exprs and all(isinstance(x, str) for x in flat_exprs) and not named_exprs: + # fast path! + try: + return self._with_compliant( + self._compliant_frame.simple_select(*flat_exprs) + ) + except Exception as e: + # Column not found is the only thing that can realistically be raised here. + if error := self._check_columns_exist(flat_exprs): + raise error from e + raise + compliant_exprs = self._flatten_and_extract(*flat_exprs, **named_exprs) + if compliant_exprs and all(is_scalar_like(x) for x in compliant_exprs): + return self._with_compliant(self._compliant_frame.aggregate(*compliant_exprs)) + compliant_exprs = [ + compliant_expr.broadcast() + if is_scalar_like(compliant_expr) + else compliant_expr + for compliant_expr in compliant_exprs + ] + return self._with_compliant(self._compliant_frame.select(*compliant_exprs)) + + def rename(self, mapping: dict[str, str]) -> Self: + return self._with_compliant(self._compliant_frame.rename(mapping)) + + def head(self, n: int) -> Self: + return self._with_compliant(self._compliant_frame.head(n)) + + def tail(self, n: int) -> Self: + return self._with_compliant(self._compliant_frame.tail(n)) + + def drop(self, *columns: Iterable[str], strict: bool) -> Self: + return self._with_compliant(self._compliant_frame.drop(columns, strict=strict)) + + def filter( + self, *predicates: IntoExpr | Iterable[IntoExpr], **constraints: Any + ) -> Self: + from narwhals.functions import all_horizontal, col + + flat_predicates = flatten(predicates) + predicate = all_horizontal( + *chain(flat_predicates, (col(name) == v for name, v in constraints.items())), + ignore_nulls=False, + ) + (compliant_predicate,) = self._flatten_and_extract(predicate) + check_expressions_preserve_length(compliant_predicate, function_name="filter") + return self._with_compliant(self._compliant_frame.filter(compliant_predicate)) + + def sort( + self, + by: str | Iterable[str], + *more_by: str, + descending: bool | Sequence[bool] = False, + nulls_last: bool = False, + ) -> Self: + by = flatten([*flatten([by]), *more_by]) + return self._with_compliant( + self._compliant_frame.sort(*by, descending=descending, nulls_last=nulls_last) + ) + + def top_k( + self, k: int, *, by: str | Iterable[str], reverse: bool | Sequence[bool] = False + ) -> Self: + flatten_by = flatten([by]) + return self._with_compliant( + self._compliant_frame.top_k(k, by=flatten_by, reverse=reverse) + ) + + def join( + self, + other: Incomplete, + on: str | list[str] | None, + how: JoinStrategy, + *, + left_on: str | list[str] | None, + right_on: str | list[str] | None, + suffix: str, + ) -> Self: + _supported_joins = ("inner", "left", "full", "cross", "anti", "semi") + on = [on] if isinstance(on, str) else on + left_on = [left_on] if isinstance(left_on, str) else left_on + right_on = [right_on] if isinstance(right_on, str) else right_on + compliant = self._compliant_frame + other = self._extract_compliant_frame(other) + + if how not in _supported_joins: + msg = f"Only the following join strategies are supported: {_supported_joins}; found '{how}'." + raise NotImplementedError(msg) + if how == "cross": + if left_on is not None or right_on is not None or on is not None: + msg = "Can not pass `left_on`, `right_on` or `on` keys for cross join" + raise ValueError(msg) + result = compliant.join( + other, how=how, left_on=None, right_on=None, suffix=suffix + ) + elif on is None: + if left_on is None or right_on is None: + msg = f"Either (`left_on` and `right_on`) or `on` keys should be specified for {how}." + raise ValueError(msg) + if len(left_on) != len(right_on): + msg = "`left_on` and `right_on` must have the same length." + raise ValueError(msg) + result = compliant.join( + other, how=how, left_on=left_on, right_on=right_on, suffix=suffix + ) + else: + if left_on is not None or right_on is not None: + msg = f"If `on` is specified, `left_on` and `right_on` should be None for {how}." + raise ValueError(msg) + result = compliant.join( + other, how=how, left_on=on, right_on=on, suffix=suffix + ) + return self._with_compliant(result) + + def gather_every(self, n: int, offset: int = 0) -> Self: + return self._with_compliant( + self._compliant_frame.gather_every(n=n, offset=offset) + ) + + def join_asof( + self, + other: Incomplete, + *, + left_on: str | None, + right_on: str | None, + on: str | None, + by_left: str | list[str] | None, + by_right: str | list[str] | None, + by: str | list[str] | None, + strategy: AsofJoinStrategy, + suffix: str, + ) -> Self: + _supported_strategies = ("backward", "forward", "nearest") + + if strategy not in _supported_strategies: + msg = f"Only the following strategies are supported: {_supported_strategies}; found '{strategy}'." + raise NotImplementedError(msg) + + if (on is None) and (left_on is None or right_on is None): + msg = "Either (`left_on` and `right_on`) or `on` keys should be specified." + raise ValueError(msg) + if (on is not None) and (left_on is not None or right_on is not None): + msg = "If `on` is specified, `left_on` and `right_on` should be None." + raise ValueError(msg) + if (by is None) and ( + (by_left is None and by_right is not None) + or (by_left is not None and by_right is None) + ): + msg = ( + "Can not specify only `by_left` or `by_right`, you need to specify both." + ) + raise ValueError(msg) + if (by is not None) and (by_left is not None or by_right is not None): + msg = "If `by` is specified, `by_left` and `by_right` should be None." + raise ValueError(msg) + if on is not None: + left_on = right_on = on + if by is not None: + by_left = by_right = by + + by_left = [by_left] if isinstance(by_left, str) else by_left + by_right = [by_right] if isinstance(by_right, str) else by_right + + if (isinstance(by_left, list) and isinstance(by_right, list)) and ( + len(by_left) != len(by_right) + ): + msg = "`by_left` and `by_right` must have the same length." + raise ValueError(msg) + + return self._with_compliant( + self._compliant_frame.join_asof( + self._extract_compliant_frame(other), + left_on=left_on, + right_on=right_on, + by_left=by_left, + by_right=by_right, + strategy=strategy, + suffix=suffix, + ) + ) + + def unpivot( + self, + on: str | list[str] | None, + *, + index: str | list[str] | None, + variable_name: str, + value_name: str, + ) -> Self: + on = [on] if isinstance(on, str) else on + index = [index] if isinstance(index, str) else index + + return self._with_compliant( + self._compliant_frame.unpivot( + on=on, index=index, variable_name=variable_name, value_name=value_name + ) + ) + + def __neq__(self, other: object) -> NoReturn: + msg = ( + "DataFrame.__neq__ and LazyFrame.__neq__ are not implemented, please " + "use expressions instead.\n\n" + "Hint: instead of\n" + " df != 0\n" + "you may want to use\n" + " df.select(nw.all() != 0)" + ) + raise NotImplementedError(msg) + + def __eq__(self, other: object) -> NoReturn: + msg = ( + "DataFrame.__eq__ and LazyFrame.__eq__ are not implemented, please " + "use expressions instead.\n\n" + "Hint: instead of\n" + " df == 0\n" + "you may want to use\n" + " df.select(nw.all() == 0)" + ) + raise NotImplementedError(msg) + + def explode(self, columns: str | Sequence[str], *more_columns: str) -> Self: + to_explode = ( + [columns, *more_columns] + if isinstance(columns, str) + else [*columns, *more_columns] + ) + + return self._with_compliant(self._compliant_frame.explode(columns=to_explode)) + + +class DataFrame(BaseFrame[DataFrameT]): + """Narwhals DataFrame, backed by a native eager dataframe. + + Warning: + This class is not meant to be instantiated directly - instead: + + - If the native object is a eager dataframe from one of the supported + backend (e.g. pandas.DataFrame, polars.DataFrame, pyarrow.Table), + you can use [`narwhals.from_native`][]: + ```py + narwhals.from_native(native_dataframe) + narwhals.from_native(native_dataframe, eager_only=True) + ``` + + - If the object is a dictionary of column names and generic sequences mapping + (e.g. `dict[str, list]`), you can create a DataFrame via + [`narwhals.from_dict`][]: + ```py + narwhals.from_dict( + data={"a": [1, 2, 3]}, + backend=narwhals.get_native_namespace(another_object), + ) + ``` + """ + + _version: ClassVar[Version] = Version.MAIN + + @property + def _compliant(self) -> CompliantDataFrame[Any, Any, DataFrameT, Self]: + return self._compliant_frame + + @property + def _series(self) -> type[Series[Any]]: + return Series + + @property + def _lazyframe(self) -> type[LazyFrame[Any]]: + return LazyFrame + + def _validate_metadata(self, metadata: ExprMetadata) -> None: + # all is valid in eager case. + pass + + def __init__(self, df: Any, *, level: Literal["full", "lazy", "interchange"]) -> None: + self._level: Literal["full", "lazy", "interchange"] = level + self._compliant_frame: CompliantDataFrame[Any, Any, DataFrameT, Self] + if is_compliant_dataframe(df): + self._compliant_frame = df.__narwhals_dataframe__() + else: # pragma: no cover + msg = f"Expected an object which implements `__narwhals_dataframe__`, got: {type(df)}" + raise AssertionError(msg) + + @classmethod + def from_arrow( + cls, native_frame: IntoArrowTable, *, backend: IntoBackend[EagerAllowed] + ) -> DataFrame[Any]: + """Construct a DataFrame from an object which supports the PyCapsule Interface. + + Arguments: + native_frame: Object which implements `__arrow_c_stream__`. + backend: specifies which eager backend instantiate to. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + + Examples: + >>> import pandas as pd + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> df_native = pd.DataFrame({"a": [1, 2], "b": [4.2, 5.1]}) + >>> nw.DataFrame.from_arrow(df_native, backend="polars") + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | shape: (2, 2) | + | ┌─────┬─────┐ | + | │ a ┆ b │ | + | │ --- ┆ --- │ | + | │ i64 ┆ f64 │ | + | ╞═════╪═════╡ | + | │ 1 ┆ 4.2 │ | + | │ 2 ┆ 5.1 │ | + | └─────┴─────┘ | + └──────────────────┘ + """ + if not (supports_arrow_c_stream(native_frame) or is_pyarrow_table(native_frame)): + msg = f"Given object of type {type(native_frame)} does not support PyCapsule interface" + raise TypeError(msg) + implementation = Implementation.from_backend(backend) + if is_eager_allowed(implementation): + ns = cls._version.namespace.from_backend(implementation).compliant + compliant = ns._dataframe.from_arrow(native_frame, context=ns) + return cls(compliant, level="full") + msg = ( + f"{implementation} support in Narwhals is lazy-only, but `DataFrame.from_arrow` is an eager-only function.\n\n" + "Hint: you may want to use an eager backend and then call `.lazy`, e.g.:\n\n" + f" nw.DataFrame.from_arrow(df, backend='pyarrow').lazy('{implementation}')" + ) + raise ValueError(msg) + + @classmethod + def from_dict( + cls, + data: Mapping[str, Any], + schema: IntoSchema | Mapping[str, DType | None] | None = None, + *, + backend: IntoBackend[EagerAllowed] | None = None, + ) -> DataFrame[Any]: + """Instantiate DataFrame from dictionary. + + Indexes (if present, for pandas-like backends) are aligned following + the [left-hand-rule](../concepts/pandas_index.md/). + + Notes: + For pandas-like dataframes, conversion to schema is applied after dataframe + creation. + + Arguments: + data: Dictionary to create DataFrame from. + schema: The DataFrame schema as Schema or dict of {name: type}. If not + specified, the schema will be inferred by the native library. If + any `dtype` is `None`, the data type for that column will be inferred + by the native library. + backend: specifies which eager backend instantiate to. Only + necessary if inputs are not Narwhals Series. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> data = {"c": [5, 2], "d": [1, 4]} + >>> nw.DataFrame.from_dict(data, backend="pandas") + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | c d | + | 0 5 1 | + | 1 2 4 | + └──────────────────┘ + """ + if backend is None: + data, backend = _from_dict_no_backend(data) + implementation = Implementation.from_backend(backend) + if is_eager_allowed(implementation): + ns = cls._version.namespace.from_backend(implementation).compliant + compliant = ns._dataframe.from_dict(data, schema=schema, context=ns) + return cls(compliant, level="full") + # NOTE: (#2786) needs resolving for extensions + msg = ( + f"{implementation} support in Narwhals is lazy-only, but `DataFrame.from_dict` is an eager-only function.\n\n" + "Hint: you may want to use an eager backend and then call `.lazy`, e.g.:\n\n" + f" nw.DataFrame.from_dict({{'a': [1, 2]}}, backend='pyarrow').lazy('{implementation}')" + ) + raise ValueError(msg) + + @classmethod + def from_dicts( + cls, + data: Sequence[Mapping[str, Any]], + schema: IntoSchema | Mapping[str, DType | None] | None = None, + *, + backend: IntoBackend[EagerAllowed], + ) -> DataFrame[Any]: + """Instantiate DataFrame from a sequence of dictionaries representing rows. + + Notes: + For pandas-like dataframes, conversion to schema is applied after dataframe + creation. + + Arguments: + data: Sequence with dictionaries mapping column name to value. + schema: The DataFrame schema as Schema or dict of {name: type}. If not + specified, the schema will be inferred by the native library. If + any `dtype` is `None`, the data type for that column will be inferred + by the native library. + backend: Specifies which eager backend instantiate to. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + + Tip: + If you expect non-uniform keys in `data`, consider passing `schema` for + more consistent results, as **inference varies between backends**: + + - pandas uses all rows + - polars uses the first 100 rows + - pyarrow uses only the first row + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> data = [ + ... {"item": "apple", "weight": 80, "price": 0.60}, + ... {"item": "egg", "weight": 55, "price": 0.40}, + ... ] + >>> nw.DataFrame.from_dicts(data, backend="polars") + ┌──────────────────────────┐ + | Narwhals DataFrame | + |--------------------------| + |shape: (2, 3) | + |┌───────┬────────┬───────┐| + |│ item ┆ weight ┆ price │| + |│ --- ┆ --- ┆ --- │| + |│ str ┆ i64 ┆ f64 │| + |╞═══════╪════════╪═══════╡| + |│ apple ┆ 80 ┆ 0.6 │| + |│ egg ┆ 55 ┆ 0.4 │| + |└───────┴────────┴───────┘| + └──────────────────────────┘ + """ + implementation = Implementation.from_backend(backend) + if is_eager_allowed(implementation): + ns = cls._version.namespace.from_backend(implementation).compliant + compliant = ns._dataframe.from_dicts(data, schema=schema, context=ns) + return cls(compliant, level="full") + # NOTE: (#2786) needs resolving for extensions + msg = ( + f"{implementation} support in Narwhals is lazy-only, but `DataFrame.from_dicts` is an eager-only function.\n\n" + "Hint: you may want to use an eager backend and then call `.lazy`, e.g.:\n\n" + f" nw.DataFrame.from_dicts([{{'a': 1}}, {{'a': 2}}], backend='pyarrow').lazy('{implementation}')" + ) + raise ValueError(msg) + + @classmethod + def from_numpy( + cls, + data: _2DArray, + schema: IntoSchema | Sequence[str] | None = None, + *, + backend: IntoBackend[EagerAllowed], + ) -> DataFrame[Any]: + """Construct a DataFrame from a NumPy ndarray. + + Notes: + Only row orientation is currently supported. + + For pandas-like dataframes, conversion to schema is applied after dataframe + creation. + + Arguments: + data: Two-dimensional data represented as a NumPy ndarray. + schema: The DataFrame schema as Schema, dict of {name: type}, or a sequence of str. + backend: specifies which eager backend instantiate to. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + + Examples: + >>> import numpy as np + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> arr = np.array([[5, 2, 1], [1, 4, 3]]) + >>> schema = {"c": nw.Int16(), "d": nw.Float32(), "e": nw.Int8()} + >>> nw.DataFrame.from_numpy(arr, schema=schema, backend="polars") + ┌───────────────────┐ + |Narwhals DataFrame | + |-------------------| + |shape: (2, 3) | + |┌─────┬─────┬─────┐| + |│ c ┆ d ┆ e │| + |│ --- ┆ --- ┆ --- │| + |│ i16 ┆ f32 ┆ i8 │| + |╞═════╪═════╪═════╡| + |│ 5 ┆ 2.0 ┆ 1 │| + |│ 1 ┆ 4.0 ┆ 3 │| + |└─────┴─────┴─────┘| + └───────────────────┘ + """ + if not is_numpy_array_2d(data): + msg = "`from_numpy` only accepts 2D numpy arrays" + raise ValueError(msg) + if not _is_into_schema(schema): + msg = ( + "`schema` is expected to be one of the following types: " + "Mapping[str, DType] | Schema | Sequence[str]. " + f"Got {type(schema)}." + ) + raise TypeError(msg) + implementation = Implementation.from_backend(backend) + if is_eager_allowed(implementation): + ns = cls._version.namespace.from_backend(implementation).compliant + return cls(ns.from_numpy(data, schema), level="full") + msg = ( + f"{implementation} support in Narwhals is lazy-only, but `DataFrame.from_numpy` is an eager-only function.\n\n" + "Hint: you may want to use an eager backend and then call `.lazy`, e.g.:\n\n" + f" nw.DataFrame.from_numpy(arr, backend='pyarrow').lazy('{implementation}')" + ) + raise ValueError(msg) + + def __len__(self) -> int: + return self._compliant_frame.__len__() + + def __array__(self, dtype: Any = None, copy: bool | None = None) -> _2DArray: # noqa: FBT001 + return self._compliant_frame.__array__(dtype, copy=copy) + + def __repr__(self) -> str: # pragma: no cover + return generate_repr("Narwhals DataFrame", self.to_native().__repr__()) + + def __arrow_c_stream__(self, requested_schema: object | None = None) -> object: + """Export a DataFrame via the Arrow PyCapsule Interface. + + - if the underlying dataframe implements the interface, it'll return that + - else, it'll call `to_arrow` and then defer to PyArrow's implementation + + See [PyCapsule Interface](https://arrow.apache.org/docs/dev/format/CDataInterface/PyCapsuleInterface.html) + for more. + """ + native_frame = self._compliant_frame._native_frame + if supports_arrow_c_stream(native_frame): + return native_frame.__arrow_c_stream__(requested_schema=requested_schema) + try: + pa_version = Implementation.PYARROW._backend_version() + except ModuleNotFoundError as exc: + msg = f"'pyarrow>=14.0.0' is required for `DataFrame.__arrow_c_stream__` for object of type {type(native_frame)}" + raise ModuleNotFoundError(msg) from exc + if pa_version < (14, 0): # pragma: no cover + msg = f"'pyarrow>=14.0.0' is required for `DataFrame.__arrow_c_stream__` for object of type {type(native_frame)}" + raise ModuleNotFoundError(msg) from None + pa_table = self.to_arrow() + return pa_table.__arrow_c_stream__(requested_schema=requested_schema) # type: ignore[no-untyped-call] + + def lazy( + self, + backend: IntoBackend[LazyAllowed] | None = None, + *, + session: Any | None = None, + ) -> LazyFrame[Any]: + """Restrict available API methods to lazy-only ones. + + If `backend` is specified, then a conversion between different backends + might be triggered. + + If a library does not support lazy execution and `backend` is not specified, + then this is will only restrict the API to lazy-only operations. This is useful + if you want to ensure that you write dataframe-agnostic code which all has + the possibility of running entirely lazily. + + Note: + If `backend` is spark-like, then a valid `session` is required. + + For instance: + + ```py + import narwhals as nw + from sqlframe.duckdb import DuckDBSession + + df.lazy(backend=nw.Implementation.SQLFRAME, session=DuckDBSession()) + ``` + + Arguments: + backend: Which lazy backend collect to. This will be the underlying + backend for the resulting Narwhals LazyFrame. If not specified, and the + given library does not support lazy execution, then this will restrict + the API to lazy-only operations. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `DASK`, `DUCKDB`, + `IBIS` or `POLARS`. + - As a string: `"dask"`, `"duckdb"`, `"ibis"` or `"polars"` + - Directly as a module `dask.dataframe`, `duckdb`, `ibis` or `polars`. + session: Session to be used if backend is spark-like. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"a": [1, 2], "b": [4, 6]}) + >>> df = nw.from_native(df_native) + + If we call `df.lazy`, we get a `narwhals.LazyFrame` backed by a Polars + LazyFrame. + + >>> df.lazy() # doctest: +SKIP + ┌─────────────────────────────┐ + | Narwhals LazyFrame | + |-----------------------------| + || + └─────────────────────────────┘ + + We can also pass DuckDB as the backend, and then we'll get a + `narwhals.LazyFrame` backed by a `duckdb.DuckDBPyRelation`. + + >>> df.lazy(backend=nw.Implementation.DUCKDB) + ┌──────────────────┐ + |Narwhals LazyFrame| + |------------------| + |┌───────┬───────┐ | + |│ a │ b │ | + |│ int64 │ int64 │ | + |├───────┼───────┤ | + |│ 1 │ 4 │ | + |│ 2 │ 6 │ | + |└───────┴───────┘ | + └──────────────────┘ + """ + lazy = self._compliant_frame.lazy + if backend is None: + return self._lazyframe(lazy(None, session=session), level="lazy") + lazy_backend = Implementation.from_backend(backend) + if is_lazy_allowed(lazy_backend): + return self._lazyframe(lazy(lazy_backend, session=session), level="lazy") + msg = f"Not-supported backend.\n\nExpected one of {get_args(_LazyAllowedImpl)} or `None`, got {lazy_backend}" + raise ValueError(msg) + + def to_native(self) -> DataFrameT: + """Convert Narwhals DataFrame to native one. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... {"foo": [1, 2, 3], "bar": [6.0, 7.0, 8.0], "ham": ["a", "b", "c"]} + ... ) + + Calling `to_native` on a Narwhals DataFrame returns the native object: + + >>> nw.from_native(df_native).to_native() + foo bar ham + 0 1 6.0 a + 1 2 7.0 b + 2 3 8.0 c + """ + return self._compliant_frame._native_frame + + def to_pandas(self) -> pd.DataFrame: + """Convert this DataFrame to a pandas DataFrame. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame( + ... {"foo": [1, 2, 3], "bar": [6.0, 7.0, 8.0], "ham": ["a", "b", "c"]} + ... ) + >>> df = nw.from_native(df_native) + >>> df.to_pandas() + foo bar ham + 0 1 6.0 a + 1 2 7.0 b + 2 3 8.0 c + """ + return self._compliant_frame.to_pandas() + + def to_polars(self) -> pl.DataFrame: + """Convert this DataFrame to a polars DataFrame. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"foo": [1, 2], "bar": [6.0, 7.0]}) + >>> df = nw.from_native(df_native) + >>> df.to_polars() + shape: (2, 2) + ┌─────┬─────┐ + │ foo ┆ bar │ + │ --- ┆ --- │ + │ i64 ┆ f64 │ + ╞═════╪═════╡ + │ 1 ┆ 6.0 │ + │ 2 ┆ 7.0 │ + └─────┴─────┘ + """ + return self._compliant_frame.to_polars() + + @overload + def write_csv(self, file: None = None) -> str: ... + + @overload + def write_csv(self, file: str | Path | BytesIO) -> None: ... + + def write_csv(self, file: str | Path | BytesIO | None = None) -> str | None: + r"""Write dataframe to comma-separated values (CSV) file. + + Arguments: + file: String, path object or file-like object to which the dataframe will be + written. If None, the resulting csv format is returned as a string. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... {"foo": [1, 2, 3], "bar": [6.0, 7.0, 8.0], "ham": ["a", "b", "c"]} + ... ) + >>> df = nw.from_native(df_native) + >>> df.write_csv() # doctest: +SKIP + 'foo,bar,ham\n1,6.0,a\n2,7.0,b\n3,8.0,c\n' + + If we had passed a file name to `write_csv`, it would have been + written to that file. + """ + return self._compliant_frame.write_csv(file) + + def write_parquet(self, file: str | Path | BytesIO) -> None: + """Write dataframe to parquet file. + + Arguments: + file: String, path object or file-like object to which the dataframe will be + written. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"foo": [1, 2], "bar": [6.0, 7.0]}) + >>> df = nw.from_native(df_native) + >>> df.write_parquet("out.parquet") # doctest:+SKIP + """ + self._compliant_frame.write_parquet(file) + + def to_numpy(self) -> _2DArray: + """Convert this DataFrame to a NumPy ndarray. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"foo": [1, 2], "bar": [6.5, 7.0]}) + >>> df = nw.from_native(df_native) + >>> df.to_numpy() + array([[1. , 6.5], + [2. , 7. ]]) + """ + return self._compliant_frame.to_numpy(None, copy=None) + + @property + def shape(self) -> tuple[int, int]: + """Get the shape of the DataFrame. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"foo": [1, 2]}) + >>> df = nw.from_native(df_native) + >>> df.shape + (2, 1) + """ + return self._compliant_frame.shape + + def get_column(self, name: str) -> Series[Any]: + """Get a single column by name. + + Arguments: + name: The column name as a string. + + Notes: + Although `name` is typed as `str`, pandas does allow non-string column + names, and they will work when passed to this function if the + `narwhals.DataFrame` is backed by a pandas dataframe with non-string + columns. This function can only be used to extract a column by name, so + there is no risk of ambiguity. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2]}) + >>> df = nw.from_native(df_native) + >>> df.get_column("a").to_native() + 0 1 + 1 2 + Name: a, dtype: int64 + """ + return self._series(self._compliant_frame.get_column(name), level=self._level) + + def estimated_size(self, unit: SizeUnit = "b") -> int | float: + """Return an estimation of the total (heap) allocated size of the `DataFrame`. + + Estimated size is given in the specified unit (bytes by default). + + Arguments: + unit: 'b', 'kb', 'mb', 'gb', 'tb', 'bytes', 'kilobytes', 'megabytes', + 'gigabytes', or 'terabytes'. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"foo": [1, 2], "bar": [6.0, 7.0]}) + >>> df = nw.from_native(df_native) + >>> df.estimated_size() + 32 + """ + return self._compliant_frame.estimated_size(unit=unit) + + # `str` overlaps with `Sequence[str]` + # We can ignore this but we must keep this overload ordering + @overload + def __getitem__(self, item: tuple[SingleIndexSelector, SingleColSelector]) -> Any: ... + + @overload + def __getitem__( # type: ignore[overload-overlap] + self, item: str | tuple[MultiIndexSelector, SingleColSelector] + ) -> Series[Any]: ... + + @overload + def __getitem__( + self, + item: ( + SingleIndexSelector + | MultiIndexSelector + | MultiColSelector + | tuple[SingleIndexSelector, MultiColSelector] + | tuple[MultiIndexSelector, MultiColSelector] + ), + ) -> Self: ... + def __getitem__( # noqa: C901, PLR0912 + self, + item: ( + SingleIndexSelector + | SingleColSelector + | MultiColSelector + | MultiIndexSelector + | tuple[SingleIndexSelector, SingleColSelector] + | tuple[SingleIndexSelector, MultiColSelector] + | tuple[MultiIndexSelector, SingleColSelector] + | tuple[MultiIndexSelector, MultiColSelector] + ), + ) -> Series[Any] | Self | Any: + """Extract column or slice of DataFrame. + + Arguments: + item: How to slice dataframe. What happens depends on what is passed. It's easiest + to explain by example. Suppose we have a Dataframe `df` + + - `df['a']` extracts column `'a'` and returns a `Series`. + - `df[0:2]` extracts the first two rows and returns a `DataFrame`. + - `df[0:2, 'a']` extracts the first two rows from column `'a'` and returns + a `Series`. + - `df[0:2, 0]` extracts the first two rows from the first column and returns + a `Series`. + - `df[[0, 1], [0, 1, 2]]` extracts the first two rows and the first three columns + and returns a `DataFrame` + - `df[:, [0, 1, 2]]` extracts all rows from the first three columns and returns a + `DataFrame`. + - `df[:, ['a', 'c']]` extracts all rows and columns `'a'` and `'c'` and returns a + `DataFrame`. + - `df[:, [True, False, True]]` extracts all rows and columns in positions 0 and 2 + and returns a `DataFrame`. + - `df[['a', 'c']]` extracts all rows and columns `'a'` and `'c'` and returns a + `DataFrame`. + - `df[0: 2, ['a', 'c']]` extracts the first two rows and columns `'a'` and `'c'` and + returns a `DataFrame` + - `df[:, 0: 2]` extracts all rows from the first two columns and returns a `DataFrame` + - `df[:, 'a': 'c']` extracts all rows and all columns positioned between `'a'` and `'c'` + _inclusive_ and returns a `DataFrame`. For example, if the columns are + `'a', 'd', 'c', 'b'`, then that would extract columns `'a'`, `'d'`, and `'c'`. + + Notes: + - Integers are always interpreted as positions + - Strings are always interpreted as column names. + + In contrast with Polars, pandas allows non-string column names. + If you don't know whether the column name you're trying to extract + is definitely a string (e.g. `df[df.columns[0]]`) then you should + use `DataFrame.get_column` instead. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2]}) + >>> df = nw.from_native(df_native) + >>> df["a"].to_native() + 0 1 + 1 2 + Name: a, dtype: int64 + """ + from narwhals.series import Series + + msg = ( + f"Unexpected type for `DataFrame.__getitem__`, got: {type(item)}.\n\n" + "Hints:\n" + "- use `df.item` to select a single item.\n" + "- Use `df[indices, :]` to select rows positionally.\n" + "- Use `df.filter(mask)` to filter rows based on a boolean mask." + ) + + if isinstance(item, tuple): + if len(item) > 2: + tuple_msg = ( + "Tuples cannot be passed to DataFrame.__getitem__ directly.\n\n" + "Hint: instead of `df[indices]`, did you mean `df[indices, :]`?" + ) + raise TypeError(tuple_msg) + rows = None if not item or is_slice_none(item[0]) else item[0] + columns = None if len(item) < 2 or is_slice_none(item[1]) else item[1] + if rows is None and columns is None: + return self + elif is_index_selector(item): + rows = item + columns = None + elif is_sequence_like(item) or isinstance(item, (slice, str)): + rows = None + columns = item + else: + raise TypeError(msg) + + if isinstance(rows, str): + raise TypeError(msg) + + compliant = self._compliant_frame + + if isinstance(columns, bool): + raise TypeError(msg) + if isinstance(columns, (int, str)): + if isinstance(rows, int): + return self.item(rows, columns) + col_name = columns if isinstance(columns, str) else self.columns[columns] + series = self.get_column(col_name) + return series[rows] if rows is not None else series + if isinstance(rows, Series): + rows = rows._compliant_series + if isinstance(columns, Series): + columns = columns._compliant_series + if rows is None: + return self._with_compliant(compliant[:, columns]) + if columns is None: + return self._with_compliant(compliant[rows, :]) + return self._with_compliant(compliant[rows, columns]) + + def __contains__(self, key: str) -> bool: + return key in self.columns + + @overload + def to_dict(self, *, as_series: Literal[True] = ...) -> dict[str, Series[Any]]: ... + @overload + def to_dict(self, *, as_series: Literal[False]) -> dict[str, list[Any]]: ... + @overload + def to_dict( + self, *, as_series: bool = True + ) -> dict[str, Series[Any]] | dict[str, list[Any]]: ... + def to_dict( + self, *, as_series: bool = True + ) -> dict[str, Series[Any]] | dict[str, list[Any]]: + """Convert DataFrame to a dictionary mapping column name to values. + + Arguments: + as_series: If set to true ``True``, then the values are Narwhals Series, + otherwise the values are Any. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"A": [1, 2], "fruits": ["banana", "apple"]}) + >>> df = nw.from_native(df_native) + >>> df.to_dict(as_series=False) + {'A': [1, 2], 'fruits': ['banana', 'apple']} + """ + if as_series: + return { + key: self._series(value, level=self._level) + for key, value in self._compliant_frame.to_dict( + as_series=as_series + ).items() + } + return self._compliant_frame.to_dict(as_series=as_series) + + def row(self, index: int) -> tuple[Any, ...]: + """Get values at given row. + + Warning: + You should NEVER use this method to iterate over a DataFrame; + if you require row-iteration you should strongly prefer use of iter_rows() + instead. + + Arguments: + index: Row number. + + Notes: + cuDF doesn't support this method. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"a": [1, 2], "b": [4, 5]}) + >>> nw.from_native(df_native).row(1) + (2, 5) + """ + return self._compliant_frame.row(index) + + # inherited + def pipe( + self, + function: Callable[Concatenate[Self, PS], R], + *args: PS.args, + **kwargs: PS.kwargs, + ) -> R: + """Pipe function call. + + Arguments: + function: Function to apply. + args: Positional arguments to pass to function. + kwargs: Keyword arguments to pass to function. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2], "ba": [4, 5]}) + >>> nw.from_native(df_native).pipe( + ... lambda _df: _df.select( + ... [x for x in _df.columns if len(x) == 1] + ... ).to_native() + ... ) + a + 0 1 + 1 2 + """ + return super().pipe(function, *args, **kwargs) + + def drop_nulls(self, subset: str | list[str] | None = None) -> Self: + """Drop rows that contain null values. + + Arguments: + subset: Column name(s) for which null values are considered. If set to None + (default), use all columns. + + Notes: + pandas handles null values differently from Polars and PyArrow. + See [null_handling](../concepts/null_handling.md) + for reference. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"a": [1.0, None], "ba": [1.0, 2.0]}) + >>> nw.from_native(df_native).drop_nulls().to_native() + pyarrow.Table + a: double + ba: double + ---- + a: [[1]] + ba: [[1]] + """ + return super().drop_nulls(subset=subset) + + def with_row_index( + self, name: str = "index", *, order_by: str | Sequence[str] | None = None + ) -> Self: + """Insert column which enumerates rows. + + Arguments: + name: The name of the column as a string. The default is "index". + order_by: Column(s) to order by when computing the row index. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"a": [1, 2], "b": [4, 5]}) + >>> nw.from_native(df_native).with_row_index().to_native() + pyarrow.Table + index: int64 + a: int64 + b: int64 + ---- + index: [[0,1]] + a: [[1,2]] + b: [[4,5]] + """ + order_by_ = [order_by] if isinstance(order_by, str) else order_by + return self._with_compliant( + self._compliant_frame.with_row_index(name, order_by=order_by_) + ) + + @property + def schema(self) -> Schema: + r"""Get an ordered mapping of column names to their data type. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"foo": [1, 2], "bar": [6.0, 7.0]}) + >>> nw.from_native(df_native).schema + Schema({'foo': Int64, 'bar': Float64}) + """ + return super().schema + + def collect_schema(self) -> Schema: + r"""Get an ordered mapping of column names to their data type. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"foo": [1, 2], "bar": [6.0, 7.0]}) + >>> nw.from_native(df_native).collect_schema() + Schema({'foo': Int64, 'bar': Float64}) + """ + return super().collect_schema() + + @property + def columns(self) -> list[str]: + """Get column names. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"foo": [1, 2], "bar": [6.0, 7.0]}) + >>> nw.from_native(df_native).columns + ['foo', 'bar'] + """ + return super().columns + + @overload + def rows(self, *, named: Literal[False] = False) -> list[tuple[Any, ...]]: ... + + @overload + def rows(self, *, named: Literal[True]) -> list[dict[str, Any]]: ... + + @overload + def rows(self, *, named: bool) -> list[tuple[Any, ...]] | list[dict[str, Any]]: ... + + def rows( + self, *, named: bool = False + ) -> list[tuple[Any, ...]] | list[dict[str, Any]]: + """Returns all data in the DataFrame as a list of rows of python-native values. + + Arguments: + named: By default, each row is returned as a tuple of values given + in the same order as the frame columns. Setting named=True will + return rows of dictionaries instead. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"foo": [1, 2], "bar": [6.0, 7.0]}) + >>> nw.from_native(df_native).rows() + [(1, 6.0), (2, 7.0)] + """ + return self._compliant_frame.rows(named=named) # type: ignore[return-value] + + def iter_columns(self) -> Iterator[Series[Any]]: + """Returns an iterator over the columns of this DataFrame. + + Yields: + A Narwhals Series, backed by a native series. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"foo": [1, 2], "bar": [6.0, 7.0]}) + >>> iter_columns = nw.from_native(df_native).iter_columns() + >>> next(iter_columns) + ┌───────────────────────┐ + | Narwhals Series | + |-----------------------| + |0 1 | + |1 2 | + |Name: foo, dtype: int64| + └───────────────────────┘ + >>> next(iter_columns) + ┌─────────────────────────┐ + | Narwhals Series | + |-------------------------| + |0 6.0 | + |1 7.0 | + |Name: bar, dtype: float64| + └─────────────────────────┘ + """ + for series in self._compliant_frame.iter_columns(): + yield self._series(series, level=self._level) + + @overload + def iter_rows( + self, *, named: Literal[False] = ..., buffer_size: int = ... + ) -> Iterator[tuple[Any, ...]]: ... + + @overload + def iter_rows( + self, *, named: Literal[True], buffer_size: int = ... + ) -> Iterator[dict[str, Any]]: ... + + @overload + def iter_rows( + self, *, named: bool, buffer_size: int = ... + ) -> Iterator[tuple[Any, ...]] | Iterator[dict[str, Any]]: ... + + def iter_rows( + self, *, named: bool = False, buffer_size: int = 512 + ) -> Iterator[tuple[Any, ...]] | Iterator[dict[str, Any]]: + """Returns an iterator over the DataFrame of rows of python-native values. + + Arguments: + named: By default, each row is returned as a tuple of values given + in the same order as the frame columns. Setting named=True will + return rows of dictionaries instead. + buffer_size: Determines the number of rows that are buffered + internally while iterating over the data. + See https://docs.pola.rs/api/python/stable/reference/dataframe/api/polars.DataFrame.iter_rows.html + + Notes: + cuDF doesn't support this method. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"foo": [1, 2], "bar": [6.0, 7.0]}) + >>> iter_rows = nw.from_native(df_native).iter_rows() + >>> next(iter_rows) + (1, 6.0) + >>> next(iter_rows) + (2, 7.0) + """ + return self._compliant_frame.iter_rows(named=named, buffer_size=buffer_size) # type: ignore[return-value] + + def with_columns( + self, *exprs: IntoExpr | Iterable[IntoExpr], **named_exprs: IntoExpr + ) -> Self: + r"""Add columns to this DataFrame. + + Added columns will replace existing columns with the same name. + + Arguments: + *exprs: Column(s) to add, specified as positional arguments. + Accepts expression input. Strings are parsed as column names, other + non-expression inputs are parsed as literals. + + **named_exprs: Additional columns to add, specified as keyword arguments. + The columns will be renamed to the keyword used. + + Note: + Creating a new DataFrame using this method does not create a new copy of + existing data. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2], "b": [0.5, 4.0]}) + >>> ( + ... nw.from_native(df_native) + ... .with_columns((nw.col("a") * 2).alias("a*2")) + ... .to_native() + ... ) + a b a*2 + 0 1 0.5 2 + 1 2 4.0 4 + """ + return super().with_columns(*exprs, **named_exprs) + + def select( + self, *exprs: IntoExpr | Iterable[IntoExpr], **named_exprs: IntoExpr + ) -> Self: + r"""Select columns from this DataFrame. + + Arguments: + *exprs: Column(s) to select, specified as positional arguments. + Accepts expression input. Strings are parsed as column names, + other non-expression inputs are parsed as literals. + + **named_exprs: Additional columns to select, specified as keyword arguments. + The columns will be renamed to the keyword used. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"a": [1, 2], "b": [3, 4]}) + >>> nw.from_native(df_native).select("a", a_plus_1=nw.col("a") + 1) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + |pyarrow.Table | + |a: int64 | + |a_plus_1: int64 | + |---- | + |a: [[1,2]] | + |a_plus_1: [[2,3]] | + └──────────────────┘ + """ + return super().select(*exprs, **named_exprs) + + def rename(self, mapping: dict[str, str]) -> Self: + """Rename column names. + + Arguments: + mapping: Key value pairs that map from old name to new name. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"foo": [1, 2], "bar": [6, 7]}) + >>> nw.from_native(df_native).rename({"foo": "apple"}).to_native() + pyarrow.Table + apple: int64 + bar: int64 + ---- + apple: [[1,2]] + bar: [[6,7]] + """ + return super().rename(mapping) + + def head(self, n: int = 5) -> Self: + """Get the first `n` rows. + + Arguments: + n: Number of rows to return. If a negative value is passed, return all rows + except the last `abs(n)`. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2], "b": [0.5, 4.0]}) + >>> nw.from_native(df_native).head(1).to_native() + a b + 0 1 0.5 + """ + return super().head(n) + + def tail(self, n: int = 5) -> Self: + """Get the last `n` rows. + + Arguments: + n: Number of rows to return. If a negative value is passed, return all rows + except the first `abs(n)`. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2], "b": [0.5, 4.0]}) + >>> nw.from_native(df_native).tail(1) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 1 2 4.0 | + └──────────────────┘ + """ + return super().tail(n) + + def drop(self, *columns: str | Iterable[str], strict: bool = True) -> Self: + """Remove columns from the dataframe. + + Arguments: + *columns: Names of the columns that should be removed from the dataframe. + strict: Validate that all column names exist in the schema and throw an + exception if a column name does not exist in the schema. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... {"foo": [1, 2], "bar": [6.0, 7.0], "ham": ["a", "b"]} + ... ) + >>> nw.from_native(df_native).drop("ham").to_native() + foo bar + 0 1 6.0 + 1 2 7.0 + """ + return super().drop(*flatten(columns), strict=strict) + + def unique( + self, + subset: str | list[str] | None = None, + *, + keep: UniqueKeepStrategy = "any", + maintain_order: bool = False, + order_by: str | Sequence[str] | None = None, + ) -> Self: + """Drop duplicate rows from this dataframe. + + Arguments: + subset: Column name(s) to consider when identifying duplicate rows. + keep: {'first', 'last', 'any', 'none'} + Which of the duplicate rows to keep. + + * 'any': Does not give any guarantee of which row is kept. + This allows more optimizations. + * 'none': Don't keep duplicate rows. + * 'first': Keep first unique row. + * 'last': Keep last unique row. + maintain_order: Keep the same order as the original DataFrame. This may be more + expensive to compute. + order_by: Column(s) to order by when computing the row index. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... {"foo": [1, 2], "bar": ["a", "a"], "ham": ["b", "b"]} + ... ) + >>> nw.from_native(df_native).unique(["bar", "ham"]).to_native() + foo bar ham + 0 1 a b + """ + if keep not in {"any", "none", "first", "last"}: + msg = f"Expected {'any', 'none', 'first', 'last'}, got: {keep}" + raise ValueError(msg) + if isinstance(subset, str): + subset = [subset] + return self._with_compliant( + self._compliant_frame.unique( + subset, keep=keep, maintain_order=maintain_order, order_by=order_by + ) + ) + + def filter( + self, *predicates: IntoExpr | Iterable[IntoExpr] | list[bool], **constraints: Any + ) -> Self: + r"""Filter the rows in the DataFrame based on one or more predicate expressions. + + The original order of the remaining rows is preserved. + + Arguments: + *predicates: Expression(s) that evaluates to a boolean Series. Can + also be a boolean list(s). + **constraints: Column filters; use `name = value` to filter columns by the supplied value. + Each constraint will behave the same as `nw.col(name).eq(value)`, and will be implicitly + joined with the other filter conditions using &. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... {"foo": [1, 2, 3], "bar": [6, 7, 8], "ham": ["a", "b", "c"]} + ... ) + + Filter on one condition + + >>> nw.from_native(df_native).filter(nw.col("foo") > 1).to_native() + foo bar ham + 1 2 7 b + 2 3 8 c + + Filter on multiple conditions with implicit `&` + + >>> nw.from_native(df_native).filter( + ... nw.col("foo") < 3, nw.col("ham") == "a" + ... ).to_native() + foo bar ham + 0 1 6 a + + Filter on multiple conditions with `|` + + >>> nw.from_native(df_native).filter( + ... (nw.col("foo") == 1) | (nw.col("ham") == "c") + ... ).to_native() + foo bar ham + 0 1 6 a + 2 3 8 c + + Filter using `**kwargs` syntax + + >>> nw.from_native(df_native).filter(foo=2, ham="b").to_native() + foo bar ham + 1 2 7 b + """ + impl = self.implementation + parsed_predicates = ( + self._series.from_iterable("", p, backend=impl) if is_list_of(p, bool) else p + for p in predicates + ) + return super().filter(*parsed_predicates, **constraints) + + @overload + def group_by( + self, *keys: IntoExpr | Iterable[IntoExpr], drop_null_keys: Literal[False] = ... + ) -> GroupBy[Self]: ... + + @overload + def group_by( + self, *keys: str | Iterable[str], drop_null_keys: Literal[True] + ) -> GroupBy[Self]: ... + + def group_by( + self, *keys: IntoExpr | Iterable[IntoExpr], drop_null_keys: bool = False + ) -> GroupBy[Self]: + r"""Start a group by operation. + + Arguments: + *keys: Column(s) to group by. Accepts expression input. Strings are parsed as + column names. + drop_null_keys: if True, then groups where any key is null won't be included + in the result. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... { + ... "a": ["a", "b", "a", "b", "c"], + ... "b": [1, 2, 1, 3, 3], + ... "c": [5, 4, 3, 2, 1], + ... } + ... ) + + Group by one column and compute the sum of another column + + >>> nw.from_native(df_native, eager_only=True).group_by("a").agg( + ... nw.col("b").sum() + ... ).sort("a").to_native() + a b + 0 a 2 + 1 b 5 + 2 c 3 + + Group by multiple columns and compute the max of another column + + >>> ( + ... nw.from_native(df_native, eager_only=True) + ... .group_by(["a", "b"]) + ... .agg(nw.max("c")) + ... .sort("a", "b") + ... .to_native() + ... ) + a b c + 0 a 1 5 + 1 b 2 4 + 2 b 3 2 + 3 c 3 1 + + Expressions are also accepted. + + >>> nw.from_native(df_native, eager_only=True).group_by( + ... "a", nw.col("b") // 2 + ... ).agg(nw.col("c").mean()).to_native() + a b c + 0 a 0 4.0 + 1 b 1 3.0 + 2 c 1 1.0 + """ + from narwhals.group_by import GroupBy + + flat_keys = flatten(keys) + + if all(isinstance(key, str) for key in flat_keys): + return GroupBy(self, flat_keys, drop_null_keys=drop_null_keys) + + from narwhals import col + from narwhals.expr import Expr + from narwhals.series import Series + + key_is_expr_or_series = tuple(isinstance(k, (Expr, Series)) for k in flat_keys) + + if drop_null_keys and any(key_is_expr_or_series): + msg = "drop_null_keys cannot be True when keys contains Expr or Series" + raise NotImplementedError(msg) + + _keys = [ + k if is_expr else col(k) + for k, is_expr in zip_strict(flat_keys, key_is_expr_or_series) + ] + expr_flat_keys = self._flatten_and_extract(*_keys) + check_expressions_preserve_length( + *expr_flat_keys, function_name="DataFrame.group_by" + ) + return GroupBy(self, expr_flat_keys, drop_null_keys=drop_null_keys) + + def sort( + self, + by: str | Iterable[str], + *more_by: str, + descending: bool | Sequence[bool] = False, + nulls_last: bool = False, + ) -> Self: + r"""Sort the dataframe by the given columns. + + Arguments: + by: Column(s) names to sort by. + *more_by: Additional columns to sort by, specified as positional arguments. + descending: Sort in descending order. When sorting by multiple columns, can be + specified per column by passing a sequence of booleans. + nulls_last: Place null values last. + + Note: + Unlike Polars, it is not possible to specify a sequence of booleans for + `nulls_last` in order to control per-column behaviour. Instead a single + boolean is applied for all `by` columns. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... {"foo": [2, 1], "bar": [6.0, 7.0], "ham": ["a", "b"]} + ... ) + >>> nw.from_native(df_native).sort("foo") + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | foo bar ham | + | 1 1 7.0 b | + | 0 2 6.0 a | + └──────────────────┘ + """ + return super().sort(by, *more_by, descending=descending, nulls_last=nulls_last) + + def top_k( + self, k: int, *, by: str | Iterable[str], reverse: bool | Sequence[bool] = False + ) -> Self: + r"""Return the `k` largest rows. + + Non-null elements are always preferred over null elements, + regardless of the value of reverse. The output is not guaranteed + to be in any particular order, sort the outputs afterwards if you wish the output to be sorted. + + Arguments: + k: Number of rows to return. + by: Column(s) used to determine the top rows. Accepts expression input. Strings are parsed as column names. + reverse: Consider the k smallest elements of the by column(s) (instead of the k largest). + This can be specified per column by passing a sequence of booleans. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... {"a": ["a", "b", "a", "b", None, "c"], "b": [2, 1, 1, 3, 2, 1]} + ... ) + >>> nw.from_native(df_native).top_k(4, by=["b", "a"]) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 3 b 3 | + | 0 a 2 | + | 4 NaN 2 | + | 5 c 1 | + └──────────────────┘ + """ + return super().top_k(k, by=by, reverse=reverse) + + def join( + self, + other: Self, + on: str | list[str] | None = None, + how: JoinStrategy = "inner", + *, + left_on: str | list[str] | None = None, + right_on: str | list[str] | None = None, + suffix: str = "_right", + ) -> Self: + r"""Join in SQL-like fashion. + + Arguments: + other: DataFrame to join with. + on: Name(s) of the join columns in both DataFrames. If set, `left_on` and + `right_on` should be None. + how: Join strategy. + + * *inner*: Returns rows that have matching values in both tables. + * *left*: Returns all rows from the left table, and the matched rows from the right table. + * *full*: Returns all rows in both dataframes, with the suffix appended to the right join keys. + * *cross*: Returns the Cartesian product of rows from both tables. + * *semi*: Filter rows that have a match in the right table. + * *anti*: Filter rows that do not have a match in the right table. + left_on: Join column of the left DataFrame. + right_on: Join column of the right DataFrame. + suffix: Suffix to append to columns with a duplicate name. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_1_native = pd.DataFrame({"id": ["a", "b"], "price": [6.0, 7.0]}) + >>> df_2_native = pd.DataFrame({"id": ["a", "b", "c"], "qty": [1, 2, 3]}) + >>> nw.from_native(df_1_native).join(nw.from_native(df_2_native), on="id") + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | id price qty | + | 0 a 6.0 1 | + | 1 b 7.0 2 | + └──────────────────┘ + """ + return super().join( + other, how=how, left_on=left_on, right_on=right_on, on=on, suffix=suffix + ) + + def join_asof( + self, + other: Self, + *, + left_on: str | None = None, + right_on: str | None = None, + on: str | None = None, + by_left: str | list[str] | None = None, + by_right: str | list[str] | None = None, + by: str | list[str] | None = None, + strategy: AsofJoinStrategy = "backward", + suffix: str = "_right", + ) -> Self: + """Perform an asof join. + + This is similar to a left-join except that we match on nearest key rather than equal keys. + + For Polars, both DataFrames must be sorted by the `on` key (within each `by` group + if specified). + + Arguments: + other: DataFrame to join with. + left_on: Name(s) of the left join column(s). + right_on: Name(s) of the right join column(s). + on: Join column of both DataFrames. If set, left_on and right_on should be None. + by_left: join on these columns before doing asof join. + by_right: join on these columns before doing asof join. + by: join on these columns before doing asof join. + strategy: Join strategy. The default is "backward". + suffix: Suffix to append to columns with a duplicate name. + + * *backward*: selects the last row in the right DataFrame whose "on" key is less than or equal to the left's key. + * *forward*: selects the first row in the right DataFrame whose "on" key is greater than or equal to the left's key. + * *nearest*: search selects the last row in the right DataFrame whose value is nearest to the left's key. + + Examples: + >>> from datetime import datetime + >>> import pandas as pd + >>> import narwhals as nw + >>> data_gdp = { + ... "datetime": [ + ... datetime(2016, 1, 1), + ... datetime(2017, 1, 1), + ... datetime(2018, 1, 1), + ... datetime(2019, 1, 1), + ... datetime(2020, 1, 1), + ... ], + ... "gdp": [4164, 4411, 4566, 4696, 4827], + ... } + >>> data_population = { + ... "datetime": [ + ... datetime(2016, 3, 1), + ... datetime(2018, 8, 1), + ... datetime(2019, 1, 1), + ... ], + ... "population": [82.19, 82.66, 83.12], + ... } + >>> gdp_native = pd.DataFrame(data_gdp) + >>> population_native = pd.DataFrame(data_population) + >>> gdp = nw.from_native(gdp_native) + >>> population = nw.from_native(population_native) + >>> population.join_asof(gdp, on="datetime", strategy="backward") + ┌──────────────────────────────┐ + | Narwhals DataFrame | + |------------------------------| + | datetime population gdp| + |0 2016-03-01 82.19 4164| + |1 2018-08-01 82.66 4566| + |2 2019-01-01 83.12 4696| + └──────────────────────────────┘ + """ + return super().join_asof( + other, + left_on=left_on, + right_on=right_on, + on=on, + by_left=by_left, + by_right=by_right, + by=by, + strategy=strategy, + suffix=suffix, + ) + + # --- descriptive --- + def is_duplicated(self) -> Series[Any]: + r"""Get a mask of all duplicated rows in this DataFrame. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"foo": [2, 2, 2], "bar": [6.0, 6.0, 7.0]}) + >>> nw.from_native(df_native).is_duplicated() + ┌───────────────┐ + |Narwhals Series| + |---------------| + | 0 True | + | 1 True | + | 2 False | + | dtype: bool | + └───────────────┘ + """ + return ~self.is_unique() + + def is_empty(self) -> bool: + r"""Check if the dataframe is empty. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"foo": [2, 2, 2], "bar": [6.0, 6.0, 7.0]}) + >>> nw.from_native(df_native).is_empty() + False + """ + return len(self) == 0 + + def is_unique(self) -> Series[Any]: + r"""Get a mask of all unique rows in this DataFrame. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"foo": [2, 2, 2], "bar": [6.0, 6.0, 7.0]}) + >>> nw.from_native(df_native).is_unique() + ┌───────────────┐ + |Narwhals Series| + |---------------| + | 0 False | + | 1 False | + | 2 True | + | dtype: bool | + └───────────────┘ + """ + return self._series(self._compliant_frame.is_unique(), level=self._level) + + def null_count(self) -> Self: + r"""Create a new DataFrame that shows the null counts per column. + + Notes: + pandas handles null values differently from Polars and PyArrow. + See [null_handling](../concepts/null_handling.md/) for reference. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"foo": [1, None], "bar": [2, 3]}) + >>> nw.from_native(df_native).null_count() + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | pyarrow.Table | + | foo: int64 | + | bar: int64 | + | ---- | + | foo: [[1]] | + | bar: [[0]] | + └──────────────────┘ + """ + plx = self._compliant_frame.__narwhals_namespace__() + result = self._compliant_frame.select(plx.all().null_count()) + return self._with_compliant(result) + + def item(self, row: int | None = None, column: int | str | None = None) -> Any: + r"""Return the DataFrame as a scalar, or return the element at the given row/column. + + Arguments: + row: The *n*-th row. + column: The column selected via an integer or a string (column name). + + Notes: + If row/col not provided, this is equivalent to df[0,0], with a check that the shape is (1,1). + With row/col, this is equivalent to df[row,col]. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"foo": [1, None], "bar": [2, 3]}) + >>> nw.from_native(df_native).item(0, 1) + 2 + """ + return self._compliant_frame.item(row=row, column=column) + + def clone(self) -> Self: + r"""Create a copy of this DataFrame.""" + return self._with_compliant(self._compliant_frame.clone()) + + def gather_every(self, n: int, offset: int = 0) -> Self: + r"""Take every nth row in the DataFrame and return as a new DataFrame. + + Arguments: + n: Gather every *n*-th row. + offset: Starting index. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"foo": [1, None, 2, 3]}) + >>> nw.from_native(df_native).gather_every(2) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | pyarrow.Table | + | foo: int64 | + | ---- | + | foo: [[1,2]] | + └──────────────────┘ + """ + return super().gather_every(n=n, offset=offset) + + def pivot( + self, + on: str | list[str], + *, + index: str | list[str] | None = None, + values: str | list[str] | None = None, + aggregate_function: PivotAgg | None = None, + maintain_order: bool | None = None, + sort_columns: bool = False, + separator: str = "_", + ) -> Self: + r"""Create a spreadsheet-style pivot table as a DataFrame. + + Arguments: + on: Name of the column(s) whose values will be used as the header of the + output DataFrame. + index: One or multiple keys to group by. If None, all remaining columns not + specified on `on` and `values` will be used. At least one of `index` and + `values` must be specified. + values: One or multiple keys to group by. If None, all remaining columns not + specified on `on` and `index` will be used. At least one of `index` and + `values` must be specified. + aggregate_function: Choose from + + - None: no aggregation takes place, will raise error if multiple values + are in group. + - A predefined aggregate function string, one of + {'min', 'max', 'first', 'last', 'sum', 'mean', 'median', 'len'} + maintain_order: Has no effect and is kept around only for backwards-compatibility. + sort_columns: Sort the transposed columns by name. Default is by order of + discovery. + separator: Used as separator/delimiter in generated column names in case of + multiple `values` columns. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> data = { + ... "ix": [1, 1, 2, 2, 1, 2], + ... "col": ["a", "a", "a", "a", "b", "b"], + ... "foo": [0, 1, 2, 2, 7, 1], + ... "bar": [0, 2, 0, 0, 9, 4], + ... } + >>> df_native = pd.DataFrame(data) + >>> nw.from_native(df_native).pivot( + ... "col", index="ix", aggregate_function="sum" + ... ) + ┌─────────────────────────────────┐ + | Narwhals DataFrame | + |---------------------------------| + | ix foo_a foo_b bar_a bar_b| + |0 1 1 7 2 9| + |1 2 4 1 0 4| + └─────────────────────────────────┘ + """ + if values is None and index is None: + msg = "At least one of `values` and `index` must be passed" + raise ValueError(msg) + if maintain_order is not None: + msg = ( + "`maintain_order` has no effect and is only kept around for backwards-compatibility. " + "You can safely remove this argument." + ) + issue_warning(msg, UserWarning) + on = [on] if isinstance(on, str) else on + values = [values] if isinstance(values, str) else values + index = [index] if isinstance(index, str) else index + + return self._with_compliant( + self._compliant_frame.pivot( + on=on, + index=index, + values=values, + aggregate_function=aggregate_function, + sort_columns=sort_columns, + separator=separator, + ) + ) + + def to_arrow(self) -> pa.Table: + r"""Convert to arrow table. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"foo": [1, None], "bar": [2, 3]}) + >>> nw.from_native(df_native).to_arrow() + pyarrow.Table + foo: double + bar: int64 + ---- + foo: [[1,null]] + bar: [[2,3]] + """ + return self._compliant_frame.to_arrow() + + def sample( + self, + n: int | None = None, + *, + fraction: float | None = None, + with_replacement: bool = False, + seed: int | None = None, + ) -> Self: + r"""Sample from this DataFrame. + + Arguments: + n: Number of items to return. Cannot be used with fraction. + fraction: Fraction of items to return. Cannot be used with n. + with_replacement: Allow values to be sampled more than once. + seed: Seed for the random number generator. If set to None (default), a random + seed is generated for each sample operation. + + Notes: + The results may not be consistent across libraries. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"foo": [1, 2, 3], "bar": [19, 32, 4]}) + >>> nw.from_native(df_native).sample(n=2) # doctest:+SKIP + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | foo bar | + | 2 3 4 | + | 1 2 32 | + └──────────────────┘ + """ + return self._with_compliant( + self._compliant_frame.sample( + n=n, fraction=fraction, with_replacement=with_replacement, seed=seed + ) + ) + + def unpivot( + self, + on: str | list[str] | None = None, + *, + index: str | list[str] | None = None, + variable_name: str = "variable", + value_name: str = "value", + ) -> Self: + r"""Unpivot a DataFrame from wide to long format. + + Optionally leaves identifiers set. + + This function is useful to massage a DataFrame into a format where one or more + columns are identifier variables (index) while all other columns, considered + measured variables (on), are "unpivoted" to the row axis leaving just + two non-identifier columns, 'variable' and 'value'. + + Arguments: + on: Column(s) to use as values variables; if `on` is empty all columns that + are not in `index` will be used. + index: Column(s) to use as identifier variables. + variable_name: Name to give to the `variable` column. Defaults to "variable". + value_name: Name to give to the `value` column. Defaults to "value". + + Notes: + If you're coming from pandas, this is similar to `pandas.DataFrame.melt`, + but with `index` replacing `id_vars` and `on` replacing `value_vars`. + In other frameworks, you might know this operation as `pivot_longer`. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> data = {"a": ["x", "y", "z"], "b": [1, 3, 5], "c": [2, 4, 6]} + >>> df_native = pd.DataFrame(data) + >>> nw.from_native(df_native).unpivot(["b", "c"], index="a") + ┌────────────────────┐ + | Narwhals DataFrame | + |--------------------| + | a variable value| + |0 x b 1| + |1 y b 3| + |2 z b 5| + |3 x c 2| + |4 y c 4| + |5 z c 6| + └────────────────────┘ + """ + return super().unpivot( + on=on, index=index, variable_name=variable_name, value_name=value_name + ) + + def explode(self, columns: str | Sequence[str], *more_columns: str) -> Self: + """Explode the dataframe to long format by exploding the given columns. + + Notes: + It is possible to explode multiple columns only if these columns must have + matching element counts. + + Arguments: + columns: Column names. The underlying columns being exploded must be of the `List` data type. + *more_columns: Additional names of columns to explode, specified as positional arguments. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> data = {"a": ["x", "y"], "b": [[1, 2], [3]]} + >>> df_native = pl.DataFrame(data) + >>> nw.from_native(df_native).explode("b").to_native() + shape: (3, 2) + ┌─────┬─────┐ + │ a ┆ b │ + │ --- ┆ --- │ + │ str ┆ i64 │ + ╞═════╪═════╡ + │ x ┆ 1 │ + │ x ┆ 2 │ + │ y ┆ 3 │ + └─────┴─────┘ + """ + return super().explode(columns, *more_columns) + + +class LazyFrame(BaseFrame[LazyFrameT]): + """Narwhals LazyFrame, backed by a native lazyframe. + + Warning: + This class is not meant to be instantiated directly - instead use + [`narwhals.from_native`][] with a native + object that is a lazy dataframe from one of the supported + backend (e.g. polars.LazyFrame, dask_expr._collection.DataFrame): + ```py + narwhals.from_native(native_lazyframe) + ``` + """ + + _version: ClassVar[Version] = Version.MAIN + + @property + def _compliant(self) -> CompliantLazyFrame[Any, LazyFrameT, Self]: + return self._compliant_frame + + @property + def _dataframe(self) -> type[DataFrame[Any]]: + return DataFrame + + def _validate_metadata(self, metadata: ExprMetadata) -> None: + if metadata.n_orderable_ops > 0: + msg = ( + "Order-dependent expressions are not supported for use in LazyFrame.\n\n" + "Hint: To make the expression valid, specify `order_by`.\n\n" + "For example, if you have columns `'price'` and `'date'`:\n" + " - Instead of `nw.col('price').cum_sum()` write `nw.col('price').cum_sum().over(order_by='date')`.\n" + " - Instead of `nw.col('price').diff()` write `nw.col('price').diff().over(order_by='date')`.\n" + " - Instead of `nw.col('price').first()` write `nw.col('price').first().over(order_by='date')`\n" + " or `nw.col('price').first(order_by='date')`.\n\n" + "See https://narwhals-dev.github.io/narwhals/concepts/order_dependence/." + ) + raise InvalidOperationError(msg) + if metadata.is_filtration: + msg = ( + "Length-changing expressions are not supported for use in LazyFrame, unless\n" + "followed by an aggregation.\n\n" + "Hints:\n" + "- Instead of `lf.select(nw.col('a').head())`, use `lf.select('a').head()\n" + "- Instead of `lf.select(nw.col('a').drop_nulls()).select(nw.sum('a'))`,\n" + " use `lf.select(nw.col('a').drop_nulls().sum())\n" + ) + raise InvalidOperationError(msg) + + def __init__(self, df: Any, *, level: Literal["full", "lazy", "interchange"]) -> None: + self._level = level + self._compliant_frame: CompliantLazyFrame[Any, LazyFrameT, Self] + if is_compliant_lazyframe(df): + self._compliant_frame = df.__narwhals_lazyframe__() + else: # pragma: no cover + msg = f"Expected Polars LazyFrame or an object that implements `__narwhals_lazyframe__`, got: {type(df)}" + raise AssertionError(msg) + + def __repr__(self) -> str: # pragma: no cover + return generate_repr("Narwhals LazyFrame", self.to_native().__repr__()) + + def __getitem__(self, item: str | slice) -> NoReturn: + msg = "Slicing is not supported on LazyFrame" + raise TypeError(msg) + + def collect( + self, backend: IntoBackend[Polars | Pandas | Arrow] | None = None, **kwargs: Any + ) -> DataFrame[Any]: + r"""Materialize this LazyFrame into a DataFrame. + + As each underlying lazyframe has different arguments to set when materializing + the lazyframe into a dataframe, we allow to pass them as kwargs (see examples + below for how to generalize the specification). + + Arguments: + backend: specifies which eager backend collect to. This will be the underlying + backend for the resulting Narwhals DataFrame. If None, then the following + default conversions will be applied + + - `polars.LazyFrame` -> `polars.DataFrame` + - `dask.DataFrame` -> `pandas.DataFrame` + - `duckdb.PyRelation` -> `pyarrow.Table` + - `pyspark.DataFrame` -> `pyarrow.Table` + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW` + or `POLARS`. + - As a string: `"pandas"`, `"pyarrow"` or `"polars"` + - Directly as a module `pandas`, `pyarrow` or `polars`. + kwargs: backend specific kwargs to pass along. To know more please check the + backend specific documentation + + - [polars.LazyFrame.collect](https://docs.pola.rs/api/python/dev/reference/lazyframe/api/polars.LazyFrame.collect.html) + - [dask.dataframe.DataFrame.compute](https://docs.dask.org/en/stable/generated/dask.dataframe.DataFrame.compute.html) + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> lf_native = duckdb.sql("SELECT * FROM VALUES (1, 2), (3, 4) df(a, b)") + >>> lf = nw.from_native(lf_native) + >>> lf + ┌──────────────────┐ + |Narwhals LazyFrame| + |------------------| + |┌───────┬───────┐ | + |│ a │ b │ | + |│ int32 │ int32 │ | + |├───────┼───────┤ | + |│ 1 │ 2 │ | + |│ 3 │ 4 │ | + |└───────┴───────┘ | + └──────────────────┘ + >>> lf.collect() + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | pyarrow.Table | + | a: int32 | + | b: int32 | + | ---- | + | a: [[1,3]] | + | b: [[2,4]] | + └──────────────────┘ + """ + collect = self._compliant_frame.collect + if backend is None: + return self._dataframe(collect(None, **kwargs), level="full") + eager_backend = Implementation.from_backend(backend) + if can_lazyframe_collect(eager_backend): + return self._dataframe(collect(eager_backend, **kwargs), level="full") + msg = f"Unsupported `backend` value.\nExpected one of {get_args(_LazyFrameCollectImpl)} or None, got: {eager_backend}." + raise ValueError(msg) + + def to_native(self) -> LazyFrameT: + """Convert Narwhals LazyFrame to native one. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> lf_native = duckdb.sql("SELECT * FROM VALUES (1, 2), (3, 4) df(a, b)") + >>> nw.from_native(lf_native).to_native() + ┌───────┬───────┐ + │ a │ b │ + │ int32 │ int32 │ + ├───────┼───────┤ + │ 1 │ 2 │ + │ 3 │ 4 │ + └───────┴───────┘ + + """ + return to_native(narwhals_object=self, pass_through=False) + + # inherited + def pipe( + self, + function: Callable[Concatenate[Self, PS], R], + *args: PS.args, + **kwargs: PS.kwargs, + ) -> R: + """Pipe function call. + + Arguments: + function: Function to apply. + args: Positional arguments to pass to function. + kwargs: Keyword arguments to pass to function. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> lf_native = duckdb.sql("SELECT * FROM VALUES (1, 2), (3, 4) df(a, b)") + >>> nw.from_native(lf_native).pipe(lambda x: x.select("a")).to_native() + ┌───────┐ + │ a │ + │ int32 │ + ├───────┤ + │ 1 │ + │ 3 │ + └───────┘ + + """ + return super().pipe(function, *args, **kwargs) + + def drop_nulls(self, subset: str | list[str] | None = None) -> Self: + """Drop rows that contain null values. + + Arguments: + subset: Column name(s) for which null values are considered. If set to None + (default), use all columns. + + Notes: + pandas handles null values differently from Polars and PyArrow. + See [null_handling](../concepts/null_handling.md/) for reference. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> lf_native = duckdb.sql("SELECT * FROM VALUES (1, NULL), (3, 4) df(a, b)") + >>> nw.from_native(lf_native).drop_nulls() + ┌──────────────────┐ + |Narwhals LazyFrame| + |------------------| + |┌───────┬───────┐ | + |│ a │ b │ | + |│ int32 │ int32 │ | + |├───────┼───────┤ | + |│ 3 │ 4 │ | + |└───────┴───────┘ | + └──────────────────┘ + """ + return super().drop_nulls(subset=subset) + + def with_row_index( + self, name: str = "index", *, order_by: str | Sequence[str] + ) -> Self: + """Insert column which enumerates rows. + + Arguments: + name: The name of the column as a string. The default is "index". + order_by: Column(s) to order by when computing the row index. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> lf_native = duckdb.sql("SELECT * FROM VALUES (1, 5), (2, 4) df(a, b)") + >>> nw.from_native(lf_native).with_row_index(order_by="a").sort("a").collect() + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | pyarrow.Table | + | index: int64 | + | a: int32 | + | b: int32 | + | ---- | + | index: [[0,1]] | + | a: [[1,2]] | + | b: [[5,4]] | + └──────────────────┘ + >>> nw.from_native(lf_native).with_row_index(order_by="b").sort("a").collect() + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | pyarrow.Table | + | index: int64 | + | a: int32 | + | b: int32 | + | ---- | + | index: [[1,0]] | + | a: [[1,2]] | + | b: [[5,4]] | + └──────────────────┘ + """ + order_by_ = [order_by] if isinstance(order_by, str) else order_by + return self._with_compliant( + self._compliant_frame.with_row_index(name, order_by=order_by_) + ) + + @property + def schema(self) -> Schema: + r"""Get an ordered mapping of column names to their data type. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> lf_native = duckdb.sql("SELECT * FROM VALUES (1, 4.5), (3, 2.) df(a, b)") + >>> nw.from_native(lf_native).schema # doctest:+SKIP + Schema({'a': Int32, 'b': Decimal(precision=2, scale=1)}) + """ + if self._compliant_frame._version is not Version.V1: + msg = ( + "Resolving the schema of a LazyFrame is a potentially expensive operation. " + "Use `LazyFrame.collect_schema()` to get the schema without this warning." + ) + issue_warning(msg, PerformanceWarning) + return super().schema + + def collect_schema(self) -> Schema: + r"""Get an ordered mapping of column names to their data type. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> lf_native = duckdb.sql("SELECT * FROM VALUES (1, 4.5), (3, 2.) df(a, b)") + >>> nw.from_native(lf_native).collect_schema() + Schema({'a': Int32, 'b': Decimal(precision=2, scale=1)}) + """ + return super().collect_schema() + + @property + def columns(self) -> list[str]: + r"""Get column names. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> lf_native = duckdb.sql("SELECT * FROM VALUES (1, 4.5), (3, 2.) df(a, b)") + >>> nw.from_native(lf_native).columns + ['a', 'b'] + """ + return super().columns + + def with_columns( + self, *exprs: IntoExpr | Iterable[IntoExpr], **named_exprs: IntoExpr + ) -> Self: + r"""Add columns to this LazyFrame. + + Added columns will replace existing columns with the same name. + + Arguments: + *exprs: Column(s) to add, specified as positional arguments. + Accepts expression input. Strings are parsed as column names, other + non-expression inputs are parsed as literals. + + **named_exprs: Additional columns to add, specified as keyword arguments. + The columns will be renamed to the keyword used. + + Note: + Creating a new LazyFrame using this method does not create a new copy of + existing data. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> lf_native = duckdb.sql("SELECT * FROM VALUES (1, 4.5), (3, 2.) df(a, b)") + >>> nw.from_native(lf_native).with_columns(c=nw.col("a") + 1) + ┌────────────────────────────────┐ + | Narwhals LazyFrame | + |--------------------------------| + |┌───────┬──────────────┬───────┐| + |│ a │ b │ c │| + |│ int32 │ decimal(2,1) │ int32 │| + |├───────┼──────────────┼───────┤| + |│ 1 │ 4.5 │ 2 │| + |│ 3 │ 2.0 │ 4 │| + |└───────┴──────────────┴───────┘| + └────────────────────────────────┘ + """ + if not exprs and not named_exprs: + msg = "At least one expression must be passed to LazyFrame.with_columns" + raise ValueError(msg) + return super().with_columns(*exprs, **named_exprs) + + def select( + self, *exprs: IntoExpr | Iterable[IntoExpr], **named_exprs: IntoExpr + ) -> Self: + r"""Select columns from this LazyFrame. + + Arguments: + *exprs: Column(s) to select, specified as positional arguments. + Accepts expression input. Strings are parsed as column names. + **named_exprs: Additional columns to select, specified as keyword arguments. + The columns will be renamed to the keyword used. + + Notes: + If you'd like to select a column whose name isn't a string (for example, + if you're working with pandas) then you should explicitly use `nw.col` instead + of just passing the column name. For example, to select a column named + `0` use `df.select(nw.col(0))`, not `df.select(0)`. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> lf_native = duckdb.sql("SELECT * FROM VALUES (1, 4.5), (3, 2.) df(a, b)") + >>> nw.from_native(lf_native).select("a", a_plus_1=nw.col("a") + 1) + ┌────────────────────┐ + | Narwhals LazyFrame | + |--------------------| + |┌───────┬──────────┐| + |│ a │ a_plus_1 │| + |│ int32 │ int32 │| + |├───────┼──────────┤| + |│ 1 │ 2 │| + |│ 3 │ 4 │| + |└───────┴──────────┘| + └────────────────────┘ + """ + if not exprs and not named_exprs: + msg = "At least one expression must be passed to LazyFrame.select" + raise ValueError(msg) + return super().select(*exprs, **named_exprs) + + def rename(self, mapping: dict[str, str]) -> Self: + r"""Rename column names. + + Arguments: + mapping: Key value pairs that map from old name to new name, or a + function that takes the old name as input and returns the + new name. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> lf_native = duckdb.sql("SELECT * FROM VALUES (1, 4.5), (3, 2.) df(a, b)") + >>> nw.from_native(lf_native).rename({"a": "c"}) + ┌────────────────────────┐ + | Narwhals LazyFrame | + |------------------------| + |┌───────┬──────────────┐| + |│ c │ b │| + |│ int32 │ decimal(2,1) │| + |├───────┼──────────────┤| + |│ 1 │ 4.5 │| + |│ 3 │ 2.0 │| + |└───────┴──────────────┘| + └────────────────────────┘ + """ + return super().rename(mapping) + + def head(self, n: int = 5) -> Self: + r"""Get `n` rows. + + Arguments: + n: Number of rows to return. + + Examples: + >>> import dask.dataframe as dd + >>> import narwhals as nw + >>> lf_native = dd.from_dict({"a": [1, 2, 3], "b": [4, 5, 6]}, npartitions=1) + >>> nw.from_native(lf_native).head(2).collect() + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 1 4 | + | 1 2 5 | + └──────────────────┘ + """ + return super().head(n) + + def drop(self, *columns: str | Iterable[str], strict: bool = True) -> Self: + r"""Remove columns from the LazyFrame. + + Arguments: + *columns: Names of the columns that should be removed from the dataframe. + strict: Validate that all column names exist in the schema and throw an + exception if a column name does not exist in the schema. + + Warning: + `strict` argument is ignored for `polars<1.0.0`. + + Please consider upgrading to a newer version or pass to eager mode. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> lf_native = duckdb.sql("SELECT * FROM VALUES (1, 2), (3, 4) df(a, b)") + >>> nw.from_native(lf_native).drop("a").to_native() + ┌───────┐ + │ b │ + │ int32 │ + ├───────┤ + │ 2 │ + │ 4 │ + └───────┘ + + """ + return super().drop(*flatten(columns), strict=strict) + + def unique( + self, + subset: str | list[str] | None = None, + *, + keep: UniqueKeepStrategy = "any", + order_by: str | Sequence[str] | None = None, + ) -> Self: + """Drop duplicate rows from this LazyFrame. + + Arguments: + subset: Column name(s) to consider when identifying duplicate rows. + If set to `None`, use all columns. + keep: {'any', 'none', 'first', 'last} + Which of the duplicate rows to keep. + + * 'any': Does not give any guarantee of which row is kept. + * 'none': Don't keep duplicate rows. + * 'first': Keep the first row. Requires `order_by` to be specified. + * 'last': Keep the last row. Requires `order_by` to be specified. + order_by: Column(s) to order by when computing the row index. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> lf_native = duckdb.sql("SELECT * FROM VALUES (1, 3), (1, 4) df(a, b)") + >>> nw.from_native(lf_native).unique("a").sort("a", descending=True) + ┌──────────────────┐ + |Narwhals LazyFrame| + |------------------| + |┌───────┬───────┐ | + |│ a │ b │ | + |│ int32 │ int32 │ | + |├───────┼───────┤ | + |│ 1 │ 3 │ | + |└───────┴───────┘ | + └──────────────────┘ + """ + if keep not in {"any", "none", "first", "last"}: + msg = f"Expected {'any', 'none', 'first', 'last'}, got: {keep}" + raise ValueError(msg) + if keep in {"first", "last"} and not order_by: + msg = ( + "narwhals.LazyFrame makes no assumptions about row order, so only " + "'first' and 'last' are only supported if `order_by` is passed." + ) + raise InvalidOperationError(msg) + if isinstance(subset, str): + subset = [subset] + return self._with_compliant( + self._compliant_frame.unique(subset=subset, keep=keep, order_by=order_by) + ) + + def filter( + self, *predicates: IntoExpr | Iterable[IntoExpr], **constraints: Any + ) -> Self: + r"""Filter the rows in the LazyFrame based on a predicate expression. + + The original order of the remaining rows is preserved. + + Arguments: + *predicates: Expression(s) that evaluates to a boolean Series. + **constraints: Column filters; use `name = value` to filter columns by the supplied value. + Each constraint will behave the same as `nw.col(name).eq(value)`, and will be implicitly + joined with the other filter conditions using &. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> df_native = duckdb.sql(''' + ... SELECT * FROM VALUES + ... (1, 6, 'a'), + ... (2, 7, 'b'), + ... (3, 8, 'c') + ... df(foo, bar, ham) + ... ''') + + Filter on one condition + + >>> nw.from_native(df_native).filter(nw.col("foo") > 1).to_native() + ┌───────┬───────┬─────────┐ + │ foo │ bar │ ham │ + │ int32 │ int32 │ varchar │ + ├───────┼───────┼─────────┤ + │ 2 │ 7 │ b │ + │ 3 │ 8 │ c │ + └───────┴───────┴─────────┘ + + + Filter on multiple conditions with implicit `&` + + >>> nw.from_native(df_native).filter( + ... nw.col("foo") < 3, nw.col("ham") == "a" + ... ).to_native() + ┌───────┬───────┬─────────┐ + │ foo │ bar │ ham │ + │ int32 │ int32 │ varchar │ + ├───────┼───────┼─────────┤ + │ 1 │ 6 │ a │ + └───────┴───────┴─────────┘ + + + Filter on multiple conditions with `|` + + >>> nw.from_native(df_native).filter( + ... (nw.col("foo") == 1) | (nw.col("ham") == "c") + ... ).to_native() + ┌───────┬───────┬─────────┐ + │ foo │ bar │ ham │ + │ int32 │ int32 │ varchar │ + ├───────┼───────┼─────────┤ + │ 1 │ 6 │ a │ + │ 3 │ 8 │ c │ + └───────┴───────┴─────────┘ + + + Filter using `**kwargs` syntax + + >>> nw.from_native(df_native).filter(foo=2, ham="b").to_native() + ┌───────┬───────┬─────────┐ + │ foo │ bar │ ham │ + │ int32 │ int32 │ varchar │ + ├───────┼───────┼─────────┤ + │ 2 │ 7 │ b │ + └───────┴───────┴─────────┘ + + """ + predicates_ = tuple(tuple(p) if is_iterator(p) else p for p in predicates) + if predicates_contains_list_of_bool(predicates_): + msg = "`LazyFrame.filter` is not supported with Python boolean masks - use expressions instead." + raise TypeError(msg) + + return super().filter(*predicates_, **constraints) + + def sink_parquet(self, file: str | Path | BytesIO) -> None: + """Write LazyFrame to Parquet file. + + This may allow larger-than-RAM datasets to be written to disk. + + Arguments: + file: String, path object or file-like object to which the dataframe will be + written. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.LazyFrame({"foo": [1, 2], "bar": [6.0, 7.0]}) + >>> df = nw.from_native(df_native) + >>> df.sink_parquet("out.parquet") # doctest:+SKIP + """ + self._compliant_frame.sink_parquet(file) + + @overload + def group_by( + self, *keys: IntoExpr | Iterable[IntoExpr], drop_null_keys: Literal[False] = ... + ) -> LazyGroupBy[Self]: ... + + @overload + def group_by( + self, *keys: str | Iterable[str], drop_null_keys: Literal[True] + ) -> LazyGroupBy[Self]: ... + + def group_by( + self, *keys: IntoExpr | Iterable[IntoExpr], drop_null_keys: bool = False + ) -> LazyGroupBy[Self]: + r"""Start a group by operation. + + Arguments: + *keys: Column(s) to group by. Accepts expression input. Strings are parsed as + column names. + drop_null_keys: if True, then groups where any key is null won't be + included in the result. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> df_native = duckdb.sql( + ... "SELECT * FROM VALUES (1, 'a'), (2, 'b'), (3, 'a') df(a, b)" + ... ) + >>> df = nw.from_native(df_native) + >>> df.group_by("b").agg(nw.col("a").sum()).sort("b").to_native() + ┌─────────┬────────┐ + │ b │ a │ + │ varchar │ int128 │ + ├─────────┼────────┤ + │ a │ 4 │ + │ b │ 2 │ + └─────────┴────────┘ + + + Expressions are also accepted. + + >>> df.group_by(nw.col("b").str.len_chars()).agg( + ... nw.col("a").sum() + ... ).to_native() + ┌───────┬────────┐ + │ b │ a │ + │ int64 │ int128 │ + ├───────┼────────┤ + │ 1 │ 6 │ + └───────┴────────┘ + + """ + from narwhals.group_by import LazyGroupBy + + flat_keys = flatten(keys) + + if all(isinstance(key, str) for key in flat_keys): + return LazyGroupBy(self, flat_keys, drop_null_keys=drop_null_keys) + + from narwhals import col + from narwhals.expr import Expr + + key_is_expr = tuple(isinstance(k, Expr) for k in flat_keys) + + if drop_null_keys and any(key_is_expr): + msg = "drop_null_keys cannot be True when keys contains Expr" + raise NotImplementedError(msg) + + _keys = [ + k if is_expr else col(k) for k, is_expr in zip_strict(flat_keys, key_is_expr) + ] + expr_flat_keys = self._flatten_and_extract(*_keys) + check_expressions_preserve_length( + *expr_flat_keys, function_name="LazyFrame.group_by" + ) + return LazyGroupBy(self, expr_flat_keys, drop_null_keys=drop_null_keys) + + def sort( + self, + by: str | Iterable[str], + *more_by: str, + descending: bool | Sequence[bool] = False, + nulls_last: bool = False, + ) -> Self: + r"""Sort the LazyFrame by the given columns. + + Arguments: + by: Column(s) names to sort by. + *more_by: Additional columns to sort by, specified as positional arguments. + descending: Sort in descending order. When sorting by multiple columns, can be + specified per column by passing a sequence of booleans. + nulls_last: Place null values last; can specify a single boolean applying to + all columns or a sequence of booleans for per-column control. + + Warning: + Unlike Polars, it is not possible to specify a sequence of booleans for + `nulls_last` in order to control per-column behaviour. Instead a single + boolean is applied for all `by` columns. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> df_native = duckdb.sql( + ... "SELECT * FROM VALUES (1, 6.0, 'a'), (2, 5.0, 'c'), (NULL, 4.0, 'b') df(a, b, c)" + ... ) + >>> df = nw.from_native(df_native) + >>> df.sort("a") + ┌──────────────────────────────────┐ + | Narwhals LazyFrame | + |----------------------------------| + |┌───────┬──────────────┬─────────┐| + |│ a │ b │ c │| + |│ int32 │ decimal(2,1) │ varchar │| + |├───────┼──────────────┼─────────┤| + |│ NULL │ 4.0 │ b │| + |│ 1 │ 6.0 │ a │| + |│ 2 │ 5.0 │ c │| + |└───────┴──────────────┴─────────┘| + └──────────────────────────────────┘ + """ + return super().sort(by, *more_by, descending=descending, nulls_last=nulls_last) + + def top_k( + self, k: int, *, by: str | Iterable[str], reverse: bool | Sequence[bool] = False + ) -> Self: + r"""Return the `k` largest rows. + + Non-null elements are always preferred over null elements, + regardless of the value of reverse. The output is not guaranteed + to be in any particular order, sort the outputs afterwards if you wish the output to be sorted. + + Arguments: + k: Number of rows to return. + by: Column(s) used to determine the top rows. Accepts expression input. Strings are parsed as column names. + reverse: Consider the k smallest elements of the by column(s) (instead of the k largest). + This can be specified per column by passing a sequence of booleans. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> df_native = duckdb.sql( + ... "SELECT * FROM VALUES ('a', 2), ('b', 1), ('a', 1), ('b', 3), (NULL, 2), ('c', 1) df(a, b)" + ... ) + >>> df = nw.from_native(df_native) + >>> df.top_k(4, by=["b", "a"]) + ┌───────────────────┐ + |Narwhals LazyFrame | + |-------------------| + |┌─────────┬───────┐| + |│ a │ b │| + |│ varchar │ int32 │| + |├─────────┼───────┤| + |│ b │ 3 │| + |│ a │ 2 │| + |│ NULL │ 2 │| + |│ c │ 1 │| + |└─────────┴───────┘| + └───────────────────┘ + """ + return super().top_k(k, by=by, reverse=reverse) + + def join( + self, + other: Self, + on: str | list[str] | None = None, + how: JoinStrategy = "inner", + *, + left_on: str | list[str] | None = None, + right_on: str | list[str] | None = None, + suffix: str = "_right", + ) -> Self: + r"""Add a join operation to the Logical Plan. + + Arguments: + other: Lazy DataFrame to join with. + on: Name(s) of the join columns in both DataFrames. If set, `left_on` and + `right_on` should be None. + how: Join strategy. + + * *inner*: Returns rows that have matching values in both tables. + * *left*: Returns all rows from the left table, and the matched rows from the right table. + * *full*: Returns all rows in both dataframes, with the suffix appended to the right join keys. + * *cross*: Returns the Cartesian product of rows from both tables. + * *semi*: Filter rows that have a match in the right table. + * *anti*: Filter rows that do not have a match in the right table. + left_on: Join column of the left DataFrame. + right_on: Join column of the right DataFrame. + suffix: Suffix to append to columns with a duplicate name. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> df_native1 = duckdb.sql( + ... "SELECT * FROM VALUES (1, 'a'), (2, 'b') df(a, b)" + ... ) + >>> df_native2 = duckdb.sql( + ... "SELECT * FROM VALUES (1, 'x'), (3, 'y') df(a, c)" + ... ) + >>> df1 = nw.from_native(df_native1) + >>> df2 = nw.from_native(df_native2) + >>> df1.join(df2, on="a") + ┌─────────────────────────────┐ + | Narwhals LazyFrame | + |-----------------------------| + |┌───────┬─────────┬─────────┐| + |│ a │ b │ c │| + |│ int32 │ varchar │ varchar │| + |├───────┼─────────┼─────────┤| + |│ 1 │ a │ x │| + |└───────┴─────────┴─────────┘| + └─────────────────────────────┘ + """ + return super().join( + other, how=how, left_on=left_on, right_on=right_on, on=on, suffix=suffix + ) + + def join_asof( + self, + other: Self, + *, + left_on: str | None = None, + right_on: str | None = None, + on: str | None = None, + by_left: str | list[str] | None = None, + by_right: str | list[str] | None = None, + by: str | list[str] | None = None, + strategy: AsofJoinStrategy = "backward", + suffix: str = "_right", + ) -> Self: + """Perform an asof join. + + This is similar to a left-join except that we match on nearest key rather than equal keys. + + For Polars, both DataFrames must be sorted by the `on` key (within each `by` group + if specified). + + Arguments: + other: DataFrame to join with. + left_on: Name(s) of the left join column(s). + right_on: Name(s) of the right join column(s). + on: Join column of both DataFrames. If set, left_on and right_on should be None. + by_left: join on these columns before doing asof join + by_right: join on these columns before doing asof join + by: join on these columns before doing asof join + strategy: Join strategy. The default is "backward". + + * *backward*: selects the last row in the right DataFrame whose "on" key is less than or equal to the left's key. + * *forward*: selects the first row in the right DataFrame whose "on" key is greater than or equal to the left's key. + * *nearest*: search selects the last row in the right DataFrame whose value is nearest to the left's key. + + suffix: Suffix to append to columns with a duplicate name. + + Examples: + >>> from datetime import datetime + >>> import polars as pl + >>> import narwhals as nw + >>> data_gdp = { + ... "datetime": [ + ... datetime(2016, 1, 1), + ... datetime(2017, 1, 1), + ... datetime(2018, 1, 1), + ... datetime(2019, 1, 1), + ... datetime(2020, 1, 1), + ... ], + ... "gdp": [4164, 4411, 4566, 4696, 4827], + ... } + >>> data_population = { + ... "datetime": [ + ... datetime(2016, 3, 1), + ... datetime(2018, 8, 1), + ... datetime(2019, 1, 1), + ... ], + ... "population": [82.19, 82.66, 83.12], + ... } + >>> gdp_native = pl.DataFrame(data_gdp) + >>> population_native = pl.DataFrame(data_population) + >>> gdp = nw.from_native(gdp_native) + >>> population = nw.from_native(population_native) + >>> population.join_asof(gdp, on="datetime", strategy="backward").to_native() + shape: (3, 3) + ┌─────────────────────┬────────────┬──────┐ + │ datetime ┆ population ┆ gdp │ + │ --- ┆ --- ┆ --- │ + │ datetime[μs] ┆ f64 ┆ i64 │ + ╞═════════════════════╪════════════╪══════╡ + │ 2016-03-01 00:00:00 ┆ 82.19 ┆ 4164 │ + │ 2018-08-01 00:00:00 ┆ 82.66 ┆ 4566 │ + │ 2019-01-01 00:00:00 ┆ 83.12 ┆ 4696 │ + └─────────────────────┴────────────┴──────┘ + """ + return super().join_asof( + other, + left_on=left_on, + right_on=right_on, + on=on, + by_left=by_left, + by_right=by_right, + by=by, + strategy=strategy, + suffix=suffix, + ) + + def lazy(self) -> Self: + """Restrict available API methods to lazy-only ones. + + This is a no-op, and exists only for compatibility with `DataFrame.lazy`. + """ + return self + + def unpivot( + self, + on: str | list[str] | None = None, + *, + index: str | list[str] | None = None, + variable_name: str = "variable", + value_name: str = "value", + ) -> Self: + r"""Unpivot a DataFrame from wide to long format. + + Optionally leaves identifiers set. + + This function is useful to massage a DataFrame into a format where one or more + columns are identifier variables (index) while all other columns, considered + measured variables (on), are "unpivoted" to the row axis leaving just + two non-identifier columns, 'variable' and 'value'. + + Arguments: + on: Column(s) to use as values variables; if `on` is empty all columns that + are not in `index` will be used. + index: Column(s) to use as identifier variables. + variable_name: Name to give to the `variable` column. Defaults to "variable". + value_name: Name to give to the `value` column. Defaults to "value". + + Notes: + If you're coming from pandas, this is similar to `pandas.DataFrame.melt`, + but with `index` replacing `id_vars` and `on` replacing `value_vars`. + In other frameworks, you might know this operation as `pivot_longer`. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> df_native = duckdb.sql( + ... "SELECT * FROM VALUES ('x', 1, 2), ('y', 3, 4), ('z', 5, 6) df(a, b, c)" + ... ) + >>> df = nw.from_native(df_native) + >>> df.unpivot(on=["b", "c"], index="a").sort("a", "variable").to_native() + ┌─────────┬──────────┬───────┐ + │ a │ variable │ value │ + │ varchar │ varchar │ int32 │ + ├─────────┼──────────┼───────┤ + │ x │ b │ 1 │ + │ x │ c │ 2 │ + │ y │ b │ 3 │ + │ y │ c │ 4 │ + │ z │ b │ 5 │ + │ z │ c │ 6 │ + └─────────┴──────────┴───────┘ + + """ + return super().unpivot( + on=on, index=index, variable_name=variable_name, value_name=value_name + ) + + def explode(self, columns: str | Sequence[str], *more_columns: str) -> Self: + """Explode the dataframe to long format by exploding the given columns. + + Notes: + It is possible to explode multiple columns only if these columns have + matching element counts. + + Arguments: + columns: Column names. The underlying columns being exploded must be of the `List` data type. + *more_columns: Additional names of columns to explode, specified as positional arguments. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> df_native = duckdb.sql( + ... "SELECT * FROM VALUES ('x', [1, 2]), ('y', [3, 4]), ('z', [5, 6]) df(a, b)" + ... ) + >>> df = nw.from_native(df_native) + >>> df.explode("b").to_native() + ┌─────────┬───────┐ + │ a │ b │ + │ varchar │ int32 │ + ├─────────┼───────┤ + │ x │ 1 │ + │ x │ 2 │ + │ y │ 3 │ + │ y │ 4 │ + │ z │ 5 │ + │ z │ 6 │ + └─────────┴───────┘ + + """ + return super().explode(columns, *more_columns) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/dependencies.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/dependencies.py new file mode 100644 index 0000000000000000000000000000000000000000..9a7830166d83ed36263fa4dc14e8c169929eace7 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/dependencies.py @@ -0,0 +1,631 @@ +# pandas / Polars / etc. : if a user passes a dataframe from one of these +# libraries, it means they must already have imported the given module. +# So, we can just check sys.modules. +from __future__ import annotations + +import sys +from typing import TYPE_CHECKING, Any + +from narwhals._exceptions import issue_warning + +if TYPE_CHECKING: + import cudf + import dask.dataframe as dd + import duckdb + import ibis + import modin.pandas as mpd + import pandas as pd + import polars as pl + import pyarrow as pa + import pyspark.sql as pyspark_sql + from pyspark.sql.connect.dataframe import DataFrame as PySparkConnectDataFrame + from typing_extensions import TypeGuard, TypeIs + + from narwhals._spark_like.dataframe import SQLFrameDataFrame + from narwhals.dataframe import DataFrame, LazyFrame + from narwhals.series import Series + from narwhals.typing import ( + IntoDataFrameT, + IntoLazyFrameT, + IntoSeriesT, + PandasLikeDType, + _1DArray, + _1DArrayInt, + _2DArray, + _NDArray, + _NumpyScalar, + _ShapeT, + ) + + +# We silently allow these but - given that they claim +# to be drop-in replacements for pandas - testing is +# their responsibility. +IMPORT_HOOKS = frozenset(["fireducks"]) + + +def get_polars() -> Any: + """Get Polars module (if already imported - else return None).""" + return sys.modules.get("polars", None) + + +def get_pandas() -> Any: + """Get pandas module (if already imported - else return None).""" + return sys.modules.get("pandas", None) + + +def get_modin() -> Any: # pragma: no cover + """Get modin.pandas module (if already imported - else return None).""" + return sys.modules.get("modin.pandas", None) + + +def get_cudf() -> Any: + """Get cudf module (if already imported - else return None).""" + return sys.modules.get("cudf", None) + + +def get_cupy() -> Any: + """Get cupy module (if already imported - else return None).""" + return sys.modules.get("cupy", None) + + +def get_pyarrow() -> Any: # pragma: no cover + """Get pyarrow module (if already imported - else return None).""" + return sys.modules.get("pyarrow", None) + + +def get_numpy() -> Any: + """Get numpy module (if already imported - else return None).""" + return sys.modules.get("numpy", None) + + +def get_dask() -> Any: # pragma: no cover + """Get dask (if already imported - else return None).""" + return sys.modules.get("dask", None) + + +def get_dask_dataframe() -> Any: + """Get dask.dataframe module (if already imported - else return None).""" + return sys.modules.get("dask.dataframe", None) + + +def get_duckdb() -> Any: + """Get duckdb module (if already imported - else return None).""" + return sys.modules.get("duckdb", None) + + +def get_ibis() -> Any: + """Get ibis module (if already imported - else return None).""" + return sys.modules.get("ibis", None) + + +def get_dask_expr() -> Any: # pragma: no cover + """Get dask_expr module (if already imported - else return None).""" + if (dd := get_dask_dataframe()) is not None and hasattr(dd, "dask_expr"): + return dd.dask_expr + return sys.modules.get("dask_expr", None) + + +def get_pyspark() -> Any: # pragma: no cover + """Get pyspark module (if already imported - else return None).""" + return sys.modules.get("pyspark", None) + + +def get_pyspark_sql() -> Any: + """Get pyspark.sql module (if already imported - else return None).""" + return sys.modules.get("pyspark.sql", None) + + +def get_pyspark_connect() -> Any: + """Get pyspark.sql.connect module (if already imported - else return None).""" + return sys.modules.get("pyspark.sql.connect", None) + + +def get_sqlframe() -> Any: + """Get sqlframe module (if already imported - else return None).""" + return sys.modules.get("sqlframe", None) + + +def _warn_if_narwhals_df_or_lf(df: Any) -> None: + if is_narwhals_dataframe(df) or is_narwhals_lazyframe(df): + msg = ( + f"You passed a `{type(df)}` to `is_pandas_dataframe`.\n\n" + "Hint: Instead of e.g. `is_pandas_dataframe(df)`, " + "did you mean `is_pandas_dataframe(df.to_native())`?" + ) + issue_warning(msg, UserWarning) + + +def _warn_if_narwhals_series(ser: Any) -> None: + if is_narwhals_series(ser): + msg = ( + f"You passed a `{type(ser)}` to `is_pandas_series`.\n\n" + "Hint: Instead of e.g. `is_pandas_series(ser)`, " + "did you mean `is_pandas_series(ser.to_native())`?" + ) + issue_warning(msg, UserWarning) + + +def is_pandas_dataframe(df: Any) -> TypeIs[pd.DataFrame]: + """Check whether `df` is a pandas DataFrame without importing pandas. + + Warning: + This method cannot be called on a Narwhals DataFrame/LazyFrame. + """ + _warn_if_narwhals_df_or_lf(df) + return ((pd := get_pandas()) is not None and isinstance(df, pd.DataFrame)) or any( + (mod := sys.modules.get(module_name, None)) is not None + and isinstance(df, mod.pandas.DataFrame) + for module_name in IMPORT_HOOKS + ) + + +def is_pandas_series(ser: Any) -> TypeIs[pd.Series[Any]]: + """Check whether `ser` is a pandas Series without importing pandas. + + Warning: + This method cannot be called on Narwhals Series. + """ + _warn_if_narwhals_series(ser) + return ((pd := get_pandas()) is not None and isinstance(ser, pd.Series)) or any( + (mod := sys.modules.get(module_name, None)) is not None + and isinstance(ser, mod.pandas.Series) + for module_name in IMPORT_HOOKS + ) + + +def is_pandas_index(index: Any) -> TypeIs[pd.Index[Any]]: + """Check whether `index` is a pandas Index without importing pandas.""" + return ((pd := get_pandas()) is not None and isinstance(index, pd.Index)) or any( + (mod := sys.modules.get(module_name, None)) is not None + and isinstance(index, mod.pandas.Index) + for module_name in IMPORT_HOOKS + ) + + +def is_modin_dataframe(df: Any) -> TypeIs[mpd.DataFrame]: + """Check whether `df` is a modin DataFrame without importing modin. + + Warning: + This method cannot be called on a Narwhals DataFrame/LazyFrame. + """ + _warn_if_narwhals_df_or_lf(df) + return (mpd := get_modin()) is not None and isinstance(df, mpd.DataFrame) + + +def is_modin_series(ser: Any) -> TypeIs[mpd.Series]: + """Check whether `ser` is a modin Series without importing modin. + + Warning: + This method cannot be called on Narwhals Series. + """ + _warn_if_narwhals_series(ser) + return (mpd := get_modin()) is not None and isinstance(ser, mpd.Series) + + +def is_modin_index(index: Any) -> TypeIs[mpd.Index[Any]]: # pragma: no cover + """Check whether `index` is a modin Index without importing modin.""" + return (mpd := get_modin()) is not None and isinstance(index, mpd.Index) + + +def is_cudf_dataframe(df: Any) -> TypeIs[cudf.DataFrame]: + """Check whether `df` is a cudf DataFrame without importing cudf. + + Warning: + This method cannot be called on a Narwhals DataFrame/LazyFrame. + """ + _warn_if_narwhals_df_or_lf(df) + return (cudf := get_cudf()) is not None and isinstance(df, cudf.DataFrame) + + +def is_cudf_series(ser: Any) -> TypeIs[cudf.Series[Any]]: + """Check whether `ser` is a cudf Series without importing cudf. + + Warning: + This method cannot be called on Narwhals Series. + """ + _warn_if_narwhals_series(ser) + return (cudf := get_cudf()) is not None and isinstance(ser, cudf.Series) + + +def is_cudf_index(index: Any) -> TypeIs[cudf.Index]: + """Check whether `index` is a cudf Index without importing cudf.""" + return (cudf := get_cudf()) is not None and isinstance( + index, cudf.Index + ) # pragma: no cover + + +def is_cupy_scalar(obj: Any) -> bool: + return ( + (cupy := get_cupy()) is not None + and isinstance(obj, cupy.ndarray) + and obj.size == 1 + ) # pragma: no cover + + +def is_dask_dataframe(df: Any) -> TypeIs[dd.DataFrame]: + """Check whether `df` is a Dask DataFrame without importing Dask. + + Warning: + This method cannot be called on a Narwhals DataFrame/LazyFrame. + """ + _warn_if_narwhals_df_or_lf(df) + return (dd := get_dask_dataframe()) is not None and isinstance(df, dd.DataFrame) + + +def is_duckdb_relation(df: Any) -> TypeIs[duckdb.DuckDBPyRelation]: + """Check whether `df` is a DuckDB Relation without importing DuckDB. + + Warning: + This method cannot be called on Narwhals DataFrame/LazyFrame. + """ + _warn_if_narwhals_df_or_lf(df) + return (duckdb := get_duckdb()) is not None and isinstance( + df, duckdb.DuckDBPyRelation + ) + + +def is_ibis_table(df: Any) -> TypeIs[ibis.Table]: + """Check whether `df` is a Ibis Table without importing Ibis. + + Warning: + This method cannot be called on Narwhals DataFrame/LazyFrame. + """ + _warn_if_narwhals_df_or_lf(df) + return (ibis := get_ibis()) is not None and isinstance(df, ibis.expr.types.Table) + + +def is_polars_dataframe(df: Any) -> TypeIs[pl.DataFrame]: + """Check whether `df` is a Polars DataFrame without importing Polars. + + Warning: + This method cannot be called on a Narwhals DataFrame/LazyFrame. + """ + _warn_if_narwhals_df_or_lf(df) + return (pl := get_polars()) is not None and isinstance(df, pl.DataFrame) + + +def is_polars_lazyframe(df: Any) -> TypeIs[pl.LazyFrame]: + """Check whether `df` is a Polars LazyFrame without importing Polars. + + Warning: + This method cannot be called on Narwhals DataFrame/LazyFrame. + """ + _warn_if_narwhals_df_or_lf(df) + return (pl := get_polars()) is not None and isinstance(df, pl.LazyFrame) + + +def is_polars_series(ser: Any) -> TypeIs[pl.Series]: + """Check whether `ser` is a Polars Series without importing Polars. + + Warning: + This method cannot be called on Narwhals Series. + """ + _warn_if_narwhals_series(ser) + return (pl := get_polars()) is not None and isinstance(ser, pl.Series) + + +def is_polars_schema(obj: Any) -> TypeIs[pl.Schema]: + return ( + bool(pl := get_polars()) and hasattr(pl, "Schema") and isinstance(obj, pl.Schema) + ) + + +# NOTE: For `pl.Schema` only instantiated dtypes are expected +def is_polars_data_type(obj: Any) -> TypeIs[pl.DataType]: + return bool(pl := get_polars()) and isinstance(obj, pl.DataType) + + +def is_pyarrow_chunked_array(ser: Any) -> TypeIs[pa.ChunkedArray[Any]]: + """Check whether `ser` is a PyArrow ChunkedArray without importing PyArrow. + + Warning: + This method cannot be called on Narwhals Series. + """ + _warn_if_narwhals_series(ser) + return (pa := get_pyarrow()) is not None and isinstance(ser, pa.ChunkedArray) + + +def is_pyarrow_table(df: Any) -> TypeIs[pa.Table]: + """Check whether `df` is a PyArrow Table without importing PyArrow. + + Warning: + This method cannot be called on Narwhals DataFrame/LazyFrame. + """ + _warn_if_narwhals_df_or_lf(df) + return (pa := get_pyarrow()) is not None and isinstance(df, pa.Table) + + +def is_pyarrow_scalar(obj: Any) -> TypeIs[pa.Scalar[Any]]: + return (pa := get_pyarrow()) is not None and isinstance(obj, pa.Scalar) + + +def is_pyarrow_schema(obj: Any) -> TypeIs[pa.Schema]: + return bool(pa := get_pyarrow()) and isinstance(obj, pa.Schema) + + +def is_pyarrow_data_type(obj: Any) -> TypeIs[pa.DataType]: + return bool(pa := get_pyarrow()) and isinstance(obj, pa.DataType) + + +def is_pyspark_dataframe(df: Any) -> TypeIs[pyspark_sql.DataFrame]: + """Check whether `df` is a PySpark DataFrame without importing PySpark. + + Warning: + This method cannot be called on a Narwhals DataFrame/LazyFrame. + """ + _warn_if_narwhals_df_or_lf(df) + return bool( + (pyspark_sql := get_pyspark_sql()) is not None + and isinstance(df, pyspark_sql.DataFrame) + ) + + +def is_pyspark_connect_dataframe(df: Any) -> TypeIs[PySparkConnectDataFrame]: + """Check whether `df` is a PySpark Connect DataFrame without importing PySpark. + + Warning: + This method cannot be called on a Narwhals DataFrame/LazyFrame. + """ + _warn_if_narwhals_df_or_lf(df) + if get_pyspark_connect() is not None: # pragma: no cover + try: + from pyspark.sql.connect.dataframe import DataFrame + except ImportError: + return False + return isinstance(df, DataFrame) + return False + + +def is_sqlframe_dataframe(df: Any) -> TypeIs[SQLFrameDataFrame]: + """Check whether `df` is a SQLFrame DataFrame without importing SQLFrame. + + Warning: + This method cannot be called on a Narwhals DataFrame/LazyFrame. + """ + _warn_if_narwhals_df_or_lf(df) + if get_sqlframe() is not None: + from sqlframe.base.dataframe import BaseDataFrame + + return isinstance(df, BaseDataFrame) + return False # pragma: no cover + + +def is_numpy_array(arr: Any | _NDArray[_ShapeT]) -> TypeIs[_NDArray[_ShapeT]]: + """Check whether `arr` is a NumPy Array without importing NumPy.""" + return (np := get_numpy()) is not None and isinstance(arr, np.ndarray) + + +def is_numpy_array_1d(arr: Any) -> TypeIs[_1DArray]: + """Check whether `arr` is a 1D NumPy Array without importing NumPy.""" + return is_numpy_array(arr) and arr.ndim == 1 + + +def is_numpy_array_1d_int(arr: Any) -> TypeIs[_1DArrayInt]: + return ( + (np := get_numpy()) + and is_numpy_array_1d(arr) + and np.issubdtype(arr.dtype, np.integer) + ) + + +def is_numpy_array_1d_bool(arr: Any) -> TypeIs[_1DArrayInt]: + return ( + (np := get_numpy()) + and is_numpy_array_1d(arr) + and np.issubdtype(arr.dtype, np.bool_) + ) + + +def is_numpy_array_2d(arr: Any) -> TypeIs[_2DArray]: + """Check whether `arr` is a 2D NumPy Array without importing NumPy.""" + return is_numpy_array(arr) and arr.ndim == 2 + + +def is_numpy_scalar(scalar: Any) -> TypeGuard[_NumpyScalar]: + """Check whether `scalar` is a NumPy Scalar without importing NumPy.""" + # NOTE: Needs to stay as `TypeGuard` + # - Used in `Series.__getitem__`, but not annotated + # - `TypeGuard` is *hiding* that the check introduces an intersection + return (np := get_numpy()) is not None and isinstance(scalar, np.generic) + + +def is_pandas_like_dataframe(df: Any) -> bool: + """Check whether `df` is a pandas-like DataFrame without doing any imports. + + By "pandas-like", we mean: pandas, Modin, cuDF. + + Warning: + This method cannot be called on a Narwhals DataFrame/LazyFrame. + """ + _warn_if_narwhals_df_or_lf(df) + return is_pandas_dataframe(df) or is_modin_dataframe(df) or is_cudf_dataframe(df) + + +def is_pandas_like_series(ser: Any) -> bool: + """Check whether `ser` is a pandas-like Series without doing any imports. + + By "pandas-like", we mean: pandas, Modin, cuDF. + + Warning: + This method cannot be called on Narwhals Series. + """ + _warn_if_narwhals_series(ser) + return is_pandas_series(ser) or is_modin_series(ser) or is_cudf_series(ser) + + +def is_pandas_like_index(index: Any) -> bool: + """Check whether `index` is a pandas-like Index without doing any imports. + + By "pandas-like", we mean: pandas, Modin, cuDF. + """ + return ( + is_pandas_index(index) or is_modin_index(index) or is_cudf_index(index) + ) # pragma: no cover + + +def is_pandas_like_dtype(obj: Any) -> TypeIs[PandasLikeDType]: + return bool(pd := get_pandas()) and isinstance( + obj, (pd.api.extensions.ExtensionDtype, get_numpy().dtype) + ) + + +def is_cudf_dtype( + obj: Any, +) -> TypeIs[pd.api.extensions.ExtensionDtype]: # pragma: no cover + return ( + bool(pd := get_pandas()) + and isinstance(obj, (pd.api.extensions.ExtensionDtype)) + and hasattr(obj, "to_arrow") + ) + + +def is_into_series(native_series: Any | IntoSeriesT) -> TypeIs[IntoSeriesT]: + """Check whether `native_series` can be converted to a Narwhals Series. + + Arguments: + native_series: The object to check. + + Examples: + >>> import pandas as pd + >>> import polars as pl + >>> import numpy as np + >>> import narwhals as nw + + >>> s_pd = pd.Series([1, 2, 3]) + >>> s_pl = pl.Series([1, 2, 3]) + >>> np_arr = np.array([1, 2, 3]) + + >>> nw.dependencies.is_into_series(s_pd) + True + >>> nw.dependencies.is_into_series(s_pl) + True + >>> nw.dependencies.is_into_series(np_arr) + False + """ + from narwhals.series import Series + + return ( + isinstance(native_series, Series) + or hasattr(native_series, "__narwhals_series__") + or is_polars_series(native_series) + or is_pyarrow_chunked_array(native_series) + or is_pandas_like_series(native_series) + ) + + +def is_into_dataframe(native_dataframe: Any | IntoDataFrameT) -> TypeIs[IntoDataFrameT]: + """Check whether `native_dataframe` can be converted to a Narwhals DataFrame. + + Arguments: + native_dataframe: The object to check. + + Examples: + >>> import pandas as pd + >>> import polars as pl + >>> import numpy as np + >>> from narwhals.dependencies import is_into_dataframe + + >>> df_pd = pd.DataFrame({"a": [1, 2, 3], "b": [4, 5, 6]}) + >>> df_pl = pl.DataFrame({"a": [1, 2, 3], "b": [4, 5, 6]}) + >>> np_arr = np.array([[1, 4], [2, 5], [3, 6]]) + + >>> is_into_dataframe(df_pd) + True + >>> is_into_dataframe(df_pl) + True + >>> is_into_dataframe(np_arr) + False + """ + from narwhals.dataframe import DataFrame + + return ( + isinstance(native_dataframe, DataFrame) + or hasattr(native_dataframe, "__narwhals_dataframe__") + or is_polars_dataframe(native_dataframe) + or is_pyarrow_table(native_dataframe) + or is_pandas_like_dataframe(native_dataframe) + ) + + +def is_narwhals_dataframe( + df: DataFrame[IntoDataFrameT] | Any, +) -> TypeIs[DataFrame[IntoDataFrameT]]: + """Check whether `df` is a Narwhals DataFrame. + + This is useful if you expect a user to pass in a Narwhals + DataFrame directly, and you want to catch both `narwhals.DataFrame` + and `narwhals.stable.v1.DataFrame`. + """ + from narwhals.dataframe import DataFrame + + return isinstance(df, DataFrame) + + +def is_narwhals_lazyframe( + lf: Any | LazyFrame[IntoLazyFrameT], +) -> TypeIs[LazyFrame[IntoLazyFrameT]]: + """Check whether `lf` is a Narwhals LazyFrame. + + This is useful if you expect a user to pass in a Narwhals + LazyFrame directly, and you want to catch both `narwhals.LazyFrame` + and `narwhals.stable.v1.LazyFrame`. + """ + from narwhals.dataframe import LazyFrame + + return isinstance(lf, LazyFrame) + + +def is_narwhals_series(ser: Any | Series[IntoSeriesT]) -> TypeIs[Series[IntoSeriesT]]: + """Check whether `ser` is a Narwhals Series. + + This is useful if you expect a user to pass in a Narwhals + Series directly, and you want to catch both `narwhals.Series` + and `narwhals.stable.v1.Series`. + """ + from narwhals.series import Series + + return isinstance(ser, Series) + + +def is_narwhals_series_int(ser: Any | Series[IntoSeriesT]) -> TypeIs[Series[IntoSeriesT]]: + return is_narwhals_series(ser) and ser.dtype.is_integer() + + +def is_narwhals_series_bool( + ser: Any | Series[IntoSeriesT], +) -> TypeIs[Series[IntoSeriesT]]: + return is_narwhals_series(ser) and ser.dtype.is_boolean() + + +__all__ = [ + "get_cudf", + "get_ibis", + "get_modin", + "get_numpy", + "get_pandas", + "get_polars", + "get_pyarrow", + "is_cudf_dataframe", + "is_cudf_series", + "is_dask_dataframe", + "is_ibis_table", + "is_into_dataframe", + "is_into_series", + "is_modin_dataframe", + "is_modin_series", + "is_narwhals_dataframe", + "is_narwhals_lazyframe", + "is_narwhals_series", + "is_numpy_array", + "is_pandas_dataframe", + "is_pandas_index", + "is_pandas_like_dataframe", + "is_pandas_like_series", + "is_pandas_series", + "is_polars_dataframe", + "is_polars_lazyframe", + "is_polars_series", + "is_pyarrow_chunked_array", + "is_pyarrow_table", +] diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/dtypes.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/dtypes.py new file mode 100644 index 0000000000000000000000000000000000000000..587b6c2758a34b0fb6711cdcbc4f7a73a0ddeb57 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/dtypes.py @@ -0,0 +1,1042 @@ +from __future__ import annotations + +import enum +from collections import OrderedDict +from collections.abc import Iterable, Mapping +from datetime import timezone +from itertools import starmap +from typing import TYPE_CHECKING + +from narwhals._utils import ( + _DeferredIterable, + isinstance_or_issubclass, + qualified_type_name, +) +from narwhals.exceptions import InvalidOperationError + +if TYPE_CHECKING: + from collections.abc import Iterator, Sequence + from typing import Any + + import _typeshed + from typing_extensions import Self, TypeIs + + from narwhals.typing import IntoDType, TimeUnit + + +def _validate_dtype(dtype: DType | type[DType]) -> None: + if not isinstance_or_issubclass(dtype, DType): + msg = ( + f"Expected Narwhals dtype, got: {type(dtype)}.\n\n" + "Hint: if you were trying to cast to a type, use e.g. nw.Int64 instead of 'int64'." + ) + raise TypeError(msg) + + +def _is_into_dtype(obj: Any) -> TypeIs[IntoDType]: + return isinstance(obj, DType) or ( + isinstance(obj, DTypeClass) and not issubclass(obj, NestedType) + ) + + +def _is_nested_type(obj: Any) -> TypeIs[type[NestedType]]: + return isinstance(obj, DTypeClass) and issubclass(obj, NestedType) + + +def _validate_into_dtype(dtype: Any) -> None: + if not _is_into_dtype(dtype): + if _is_nested_type(dtype): + name = f"nw.{dtype.__name__}" + msg = ( + f"{name!r} is not valid in this context.\n\n" + f"Hint: instead of:\n\n" + f" {name}\n\n" + "use:\n\n" + f" {name}(...)" + ) + else: + msg = f"Expected Narwhals dtype, got: {qualified_type_name(dtype)!r}." + raise TypeError(msg) + + +class DTypeClass(type): + """Metaclass for DType classes. + + - Nicely print classes. + - Ensure [`__slots__`] are always defined to prevent `__dict__` creation (empty by default). + + [`__slots__`]: https://docs.python.org/3/reference/datamodel.html#object.__slots__ + """ + + def __repr__(cls) -> str: + return cls.__name__ + + # https://github.com/python/typeshed/blob/776508741d76b58f9dcb2aaf42f7d4596a48d580/stdlib/abc.pyi#L13-L19 + # https://github.com/python/typeshed/blob/776508741d76b58f9dcb2aaf42f7d4596a48d580/stdlib/_typeshed/__init__.pyi#L36-L40 + # https://github.com/astral-sh/ruff/issues/8353#issuecomment-1786238311 + # https://docs.python.org/3/reference/datamodel.html#creating-the-class-object + def __new__( + metacls: type[_typeshed.Self], + cls_name: str, + bases: tuple[type, ...], + namespace: dict[str, Any], + /, + **kwds: Any, + ) -> _typeshed.Self: + namespace.setdefault("__slots__", ()) + return super().__new__(metacls, cls_name, bases, namespace, **kwds) # type: ignore[no-any-return, misc] + + +class DType(metaclass=DTypeClass): + """Base class for all Narwhals data types.""" + + __slots__ = () # NOTE: Keep this one defined manually for the type checker + + def __repr__(self) -> str: + return self.__class__.__qualname__ + + @classmethod + def base_type(cls) -> type[Self]: + """Return this DType's fundamental/root type class. + + Examples: + >>> import narwhals as nw + >>> nw.Datetime("us").base_type() + Datetime + >>> nw.String.base_type() + String + >>> nw.List(nw.Int64).base_type() + List + """ + return cls + + @classmethod + def is_numeric(cls: type[Self]) -> bool: + """Check whether the data type is a numeric type.""" + return issubclass(cls, NumericType) + + @classmethod + def is_integer(cls: type[Self]) -> bool: + """Check whether the data type is an integer type.""" + return issubclass(cls, IntegerType) + + @classmethod + def is_signed_integer(cls: type[Self]) -> bool: + """Check whether the data type is a signed integer type.""" + return issubclass(cls, SignedIntegerType) + + @classmethod + def is_unsigned_integer(cls: type[Self]) -> bool: + """Check whether the data type is an unsigned integer type.""" + return issubclass(cls, UnsignedIntegerType) + + @classmethod + def is_float(cls: type[Self]) -> bool: + """Check whether the data type is a floating point type.""" + return issubclass(cls, FloatType) + + @classmethod + def is_decimal(cls: type[Self]) -> bool: + """Check whether the data type is a decimal type.""" + return issubclass(cls, Decimal) + + @classmethod + def is_temporal(cls: type[Self]) -> bool: + """Check whether the data type is a temporal type.""" + return issubclass(cls, TemporalType) + + @classmethod + def is_nested(cls: type[Self]) -> bool: + """Check whether the data type is a nested type.""" + return issubclass(cls, NestedType) + + @classmethod + def is_boolean(cls: type[Self]) -> bool: + """Check whether the data type is a boolean type.""" + return issubclass(cls, Boolean) + + def __eq__(self, other: DType | type[DType]) -> bool: # type: ignore[override] + """Check if this DType is equivalent to another DType. + + Examples: + >>> import narwhals as nw + >>> nw.String() == nw.String() + True + >>> nw.String() == nw.String + True + >>> nw.Int16() == nw.Int32 + False + >>> nw.Boolean() == nw.Int8 + False + >>> nw.Date() == nw.Datetime + False + """ + return isinstance_or_issubclass(other, type(self)) + + def __hash__(self) -> int: + return hash(self.__class__) + + +class NumericType(DType): + """Base class for numeric data types.""" + + +class IntegerType(NumericType): + """Base class for integer data types.""" + + +class SignedIntegerType(IntegerType): + """Base class for signed integer data types.""" + + +class UnsignedIntegerType(IntegerType): + """Base class for unsigned integer data types.""" + + +class FloatType(NumericType): + """Base class for float data types.""" + + +class TemporalType(DType): + """Base class for temporal data types.""" + + +class NestedType(DType): + """Base class for nested data types.""" + + +class Decimal(NumericType): + """Decimal 128-bit type with an optional precision and non-negative scale. + + Arguments: + precision: Maximum number of digits in each number. If set to `None` (default), + the precision is set to 38 (the maximum supported by Polars). + scale: Number of digits to the right of the decimal point in each number. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s = pl.Series(["1.5"], dtype=pl.Decimal) + >>> nw.from_native(s, series_only=True).dtype + Decimal(precision=2, scale=1) + """ + + __slots__ = ("precision", "scale") + + precision: int + scale: int + + # !NOTE: Reason for `precision: int | None = None` rather than `precision: int = 38` + # is to mirror polars signature https://github.com/pola-rs/polars/blob/bb79993c3aa91d0db7d20be8f75c8075cad97067/py-polars/src/polars/datatypes/classes.py#L450-L454 + def __init__(self, precision: int | None = None, scale: int = 0) -> None: + precision = 38 if precision is None else precision + + if not ((is_int := isinstance(precision, int)) and 0 <= precision <= 38): + msg = f"precision must be a positive integer between 0 and 38, found {precision!r}" + raise ValueError(msg) if is_int else TypeError(msg) + + if not ((is_int := isinstance(scale, int)) and scale >= 0): + msg = f"scale must be a positive integer, found {scale!r}" + raise ValueError(msg) if is_int else TypeError(msg) + + if scale > precision: + msg = "scale must be less than or equal to precision" + raise InvalidOperationError(msg) + + self.precision = precision + self.scale = scale + + def __eq__(self, other: DType | type[DType]) -> bool: # type: ignore[override] + return (other is Decimal) or ( + isinstance(other, self.__class__) + and self.precision == other.precision + and self.scale == other.scale + ) + + def __hash__(self) -> int: # pragma: no cover + return hash((self.__class__, self.precision, self.scale)) + + def __repr__(self) -> str: # pragma: no cover + class_name = self.__class__.__name__ + return f"{class_name}(precision={self.precision!r}, scale={self.scale!r})" + + +class Int128(SignedIntegerType): + """128-bit signed integer type. + + Examples: + >>> import polars as pl + >>> import pyarrow as pa + >>> import narwhals as nw + >>> import duckdb + >>> s_native = pl.Series([2, 1, 3, 7]) + >>> s = nw.from_native(s_native, series_only=True) + >>> df_native = pa.table({"a": [2, 1, 3, 7]}) + >>> rel = duckdb.sql(" SELECT CAST (a AS INT128) AS a FROM df_native ") + + >>> s.cast(nw.Int128).dtype + Int128 + >>> nw.from_native(rel).collect_schema()["a"] + Int128 + """ + + +class Int64(SignedIntegerType): + """64-bit signed integer type. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([2, 1, 3, 7]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.cast(nw.Int64).dtype + Int64 + """ + + +class Int32(SignedIntegerType): + """32-bit signed integer type. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array([[2, 1, 3, 7]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.cast(nw.Int32).dtype + Int32 + """ + + +class Int16(SignedIntegerType): + """16-bit signed integer type. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([2, 1, 3, 7]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.cast(nw.Int16).dtype + Int16 + """ + + +class Int8(SignedIntegerType): + """8-bit signed integer type. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series([2, 1, 3, 7]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.cast(nw.Int8).dtype + Int8 + """ + + +class UInt128(UnsignedIntegerType): + """128-bit unsigned integer type. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> import duckdb + >>> df_native = pd.DataFrame({"a": [2, 1, 3, 7]}) + >>> rel = duckdb.sql(" SELECT CAST (a AS UINT128) AS a FROM df_native ") + >>> nw.from_native(rel).collect_schema()["a"] + UInt128 + """ + + +class UInt64(UnsignedIntegerType): + """64-bit unsigned integer type. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series([2, 1, 3, 7]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.cast(nw.UInt64).dtype + UInt64 + """ + + +class UInt32(UnsignedIntegerType): + """32-bit unsigned integer type. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([2, 1, 3, 7]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.cast(nw.UInt32).dtype + UInt32 + """ + + +class UInt16(UnsignedIntegerType): + """16-bit unsigned integer type. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([2, 1, 3, 7]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.cast(nw.UInt16).dtype + UInt16 + """ + + +class UInt8(UnsignedIntegerType): + """8-bit unsigned integer type. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([2, 1, 3, 7]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.cast(nw.UInt8).dtype + UInt8 + """ + + +class Float64(FloatType): + """64-bit floating point type. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array([[0.001, 0.1, 0.01, 0.1]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.cast(nw.Float64).dtype + Float64 + """ + + +class Float32(FloatType): + """32-bit floating point type. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([0.001, 0.1, 0.01, 0.1]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.cast(nw.Float32).dtype + Float32 + """ + + +class String(DType): + """UTF-8 encoded string type. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series(["beluga", "narwhal", "orca", "vaquita"]) + >>> nw.from_native(s_native, series_only=True).dtype + String + """ + + +class Boolean(DType): + """Boolean type. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array([[True, False, False, True]]) + >>> nw.from_native(s_native, series_only=True).dtype + Boolean + """ + + +class Object(DType): + """Data type for wrapping arbitrary Python objects. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> class Foo: ... + >>> s_native = pd.Series([Foo(), Foo()]) + >>> nw.from_native(s_native, series_only=True).dtype + Object + """ + + +class Unknown(DType): + """Type representing DataType values that could not be determined statically. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series(pd.period_range("2000-01", periods=4, freq="M")) + >>> nw.from_native(s_native, series_only=True).dtype + Unknown + """ + + +class _DatetimeMeta(DTypeClass): + @property + def time_unit(cls) -> TimeUnit: + """Unit of time. Defaults to `'us'` (microseconds).""" + return "us" + + @property + def time_zone(cls) -> str | None: + """Time zone string. Defaults to `None`.""" + return None + + +class Datetime(TemporalType, metaclass=_DatetimeMeta): + """Data type representing a calendar date and time of day. + + Arguments: + time_unit: Unit of time. Defaults to `'us'` (microseconds). + time_zone: Time zone string, as defined in zoneinfo (to see valid strings run + `import zoneinfo; zoneinfo.available_timezones()` for a full list). + + Notes: + Adapted from [Polars implementation](https://github.com/pola-rs/polars/blob/py-1.7.1/py-polars/polars/datatypes/classes.py#L398-L457) + + Examples: + >>> from datetime import datetime, timedelta + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = ( + ... pl.Series([datetime(2024, 12, 9) + timedelta(days=n) for n in range(5)]) + ... .cast(pl.Datetime("ms")) + ... .dt.replace_time_zone("Africa/Accra") + ... ) + >>> nw.from_native(s_native, series_only=True).dtype + Datetime(time_unit='ms', time_zone='Africa/Accra') + """ + + __slots__ = ("time_unit", "time_zone") + + def __init__( + self, time_unit: TimeUnit = "us", time_zone: str | timezone | None = None + ) -> None: + if time_unit not in {"s", "ms", "us", "ns"}: + msg = ( + "invalid `time_unit`" + f"\n\nExpected one of {{'ns','us','ms', 's'}}, got {time_unit!r}." + ) + raise ValueError(msg) + + if isinstance(time_zone, timezone): + time_zone = str(time_zone) + + self.time_unit: TimeUnit = time_unit + """Unit of time.""" + self.time_zone: str | None = time_zone + """Time zone string, as defined in zoneinfo. + + Notes: + To see valid strings run `import zoneinfo; zoneinfo.available_timezones()` for a full list. + """ + + def __eq__(self, other: DType | type[DType]) -> bool: # type: ignore[override] + """Check if this Datetime is equivalent to another DType. + + Examples: + >>> import narwhals as nw + >>> nw.Datetime("s") == nw.Datetime("s") + True + >>> nw.Datetime() == nw.Datetime("us") + True + >>> nw.Datetime("us") == nw.Datetime("ns") + False + >>> nw.Datetime("us", "UTC") == nw.Datetime(time_unit="us", time_zone="UTC") + True + >>> nw.Datetime(time_zone="UTC") == nw.Datetime(time_zone="EST") + False + >>> nw.Datetime() == nw.Duration() + False + >>> nw.Datetime("ms") == nw.Datetime + True + """ + if type(other) is _DatetimeMeta: + return True + if isinstance(other, self.__class__): + return self.time_unit == other.time_unit and self.time_zone == other.time_zone + return False # pragma: no cover + + def __hash__(self) -> int: # pragma: no cover + return hash((self.__class__, self.time_unit, self.time_zone)) + + def __repr__(self) -> str: # pragma: no cover + class_name = self.__class__.__name__ + return f"{class_name}(time_unit={self.time_unit!r}, time_zone={self.time_zone!r})" + + +class _DurationMeta(DTypeClass): + @property + def time_unit(cls) -> TimeUnit: + """Unit of time. Defaults to `'us'` (microseconds).""" + return "us" + + +class Duration(TemporalType, metaclass=_DurationMeta): + """Data type representing a time duration. + + Arguments: + time_unit: Unit of time. Defaults to `'us'` (microseconds). + + Notes: + Adapted from [Polars implementation](https://github.com/pola-rs/polars/blob/py-1.7.1/py-polars/polars/datatypes/classes.py#L460-L502) + + Examples: + >>> from datetime import timedelta + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array( + ... [[timedelta(seconds=d) for d in range(1, 4)]], type=pa.duration("ms") + ... ) + >>> nw.from_native(s_native, series_only=True).dtype + Duration(time_unit='ms') + """ + + __slots__ = ("time_unit",) + + def __init__(self, time_unit: TimeUnit = "us") -> None: + if time_unit not in {"s", "ms", "us", "ns"}: + msg = ( + "invalid `time_unit`" + f"\n\nExpected one of {{'ns','us','ms', 's'}}, got {time_unit!r}." + ) + raise ValueError(msg) + + self.time_unit: TimeUnit = time_unit + """Unit of time.""" + + def __eq__(self, other: DType | type[DType]) -> bool: # type: ignore[override] + """Check if this Duration is equivalent to another DType. + + Examples: + >>> import narwhals as nw + >>> nw.Duration("us") == nw.Duration("us") + True + >>> nw.Duration() == nw.Duration("us") + True + >>> nw.Duration("us") == nw.Duration("ns") + False + >>> nw.Duration() == nw.Datetime() + False + >>> nw.Duration("ms") == nw.Duration + True + """ + if type(other) is _DurationMeta: + return True + if isinstance(other, self.__class__): + return self.time_unit == other.time_unit + return False # pragma: no cover + + def __hash__(self) -> int: # pragma: no cover + return hash((self.__class__, self.time_unit)) + + def __repr__(self) -> str: # pragma: no cover + class_name = self.__class__.__name__ + return f"{class_name}(time_unit={self.time_unit!r})" + + +class Categorical(DType): + """A categorical encoding of a set of strings. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series(["beluga", "narwhal", "orca"]) + >>> nw.from_native(s_native, series_only=True).cast(nw.Categorical).dtype + Categorical + """ + + +class Enum(DType): + """A fixed categorical encoding of a unique set of strings. + + Polars has an Enum data type. In pandas, ordered categories get mapped + to Enum. PyArrow has no Enum equivalent. + + Examples: + >>> import narwhals as nw + >>> nw.Enum(["beluga", "narwhal", "orca"]) + Enum(categories=['beluga', 'narwhal', 'orca']) + """ + + __slots__ = ("_cached_categories", "_delayed_categories") + + def __init__(self, categories: Iterable[str] | type[enum.Enum]) -> None: + self._delayed_categories: _DeferredIterable[str] | None = None + self._cached_categories: tuple[str, ...] | None = None + + if isinstance(categories, _DeferredIterable): + self._delayed_categories = categories + elif isinstance(categories, type) and issubclass(categories, enum.Enum): + self._cached_categories = tuple(member.value for member in categories) + else: + self._cached_categories = tuple(categories) + + @property + def categories(self) -> tuple[str, ...]: + """The categories in the dataset.""" + if (cached := self._cached_categories) is not None: + return cached + if (delayed := self._delayed_categories) is not None: + self._cached_categories = delayed.to_tuple() + return self._cached_categories + msg = f"Internal structure of {type(self).__name__!r} is invalid." # pragma: no cover + raise TypeError(msg) # pragma: no cover + + def __eq__(self, other: DType | type[DType]) -> bool: # type: ignore[override] + """Check if this Enum is equivalent to another DType. + + Examples: + >>> import narwhals as nw + >>> nw.Enum(["a", "b", "c"]) == nw.Enum(["a", "b", "c"]) + True + >>> import polars as pl + >>> categories = pl.Series(["a", "b", "c"]) + >>> nw.Enum(["a", "b", "c"]) == nw.Enum(categories) + True + >>> nw.Enum(["a", "b", "c"]) == nw.Enum(["b", "a", "c"]) + False + >>> nw.Enum(["a", "b", "c"]) == nw.Enum(["a"]) + False + >>> nw.Enum(["a", "b", "c"]) == nw.Categorical + False + >>> nw.Enum(["a", "b", "c"]) == nw.Enum + True + """ + if type(other) is DTypeClass: + return other is Enum + return isinstance(other, type(self)) and self.categories == other.categories + + def __hash__(self) -> int: + return hash((self.__class__, tuple(self.categories))) + + def __repr__(self) -> str: + return f"{type(self).__name__}(categories={list(self.categories)!r})" + + +class Field: + """Definition of a single field within a `Struct` DType. + + Arguments: + name: The name of the field within its parent `Struct`. + dtype: The `DType` of the field's values. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> data = [{"a": 1, "b": ["narwhal", "beluga"]}, {"a": 2, "b": ["orca"]}] + >>> ser_pa = pa.chunked_array([data]) + >>> nw.from_native(ser_pa, series_only=True).dtype.fields + [Field('a', Int64), Field('b', List(String))] + """ + + __slots__ = ("dtype", "name") + name: str + """The name of the field within its parent `Struct`.""" + dtype: IntoDType + """The `DType` of the field's values.""" + + def __init__(self, name: str, dtype: IntoDType) -> None: + self.name = name + self.dtype = dtype + + def __eq__(self, other: Field) -> bool: # type: ignore[override] + """Check if this Field is equivalent to another Field. + + Two fields are equivalent if they have the same name and the same dtype. + + Examples: + >>> import narwhals as nw + >>> nw.Field("a", nw.String) == nw.Field("a", nw.String()) + True + >>> nw.Field("a", nw.String) == nw.Field("a", nw.String) + True + >>> nw.Field("a", nw.String) == nw.Field("a", nw.Datetime) + False + >>> nw.Field("a", nw.String) == nw.Field("b", nw.String) + False + >>> nw.Field("a", nw.String) == nw.String + False + """ + return ( + isinstance(other, Field) + and (self.name == other.name) + and (self.dtype == other.dtype) + ) + + def __hash__(self) -> int: + return hash((self.name, self.dtype)) + + def __repr__(self) -> str: + class_name = self.__class__.__name__ + return f"{class_name}({self.name!r}, {self.dtype})" + + +class Struct(NestedType): + """Struct composite type. + + Arguments: + fields: The fields that make up the struct. Can be either a sequence of Field + objects or a mapping of column names to data types. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array( + ... [[{"a": 1, "b": ["narwhal", "beluga"]}, {"a": 2, "b": ["orca"]}]] + ... ) + >>> nw.from_native(s_native, series_only=True).dtype + Struct({'a': Int64, 'b': List(String)}) + """ + + __slots__ = ("fields",) + fields: list[Field] + """The fields that make up the struct.""" + + def __init__(self, fields: Sequence[Field] | Mapping[str, IntoDType]) -> None: + if isinstance(fields, Mapping): + self.fields = list(starmap(Field, fields.items())) + else: + self.fields = list(fields) + + def __eq__(self, other: DType | type[DType]) -> bool: # type: ignore[override] + """Check if this Struct is equivalent to another DType. + + Examples: + >>> import narwhals as nw + >>> nw.Struct({"a": nw.Int64}) == nw.Struct({"a": nw.Int64}) + True + >>> nw.Struct({"a": nw.Int64}) == nw.Struct({"a": nw.Boolean}) + False + >>> nw.Struct({"a": nw.Int64}) == nw.Struct({"b": nw.Int64}) + False + >>> nw.Struct({"a": nw.Int64}) == nw.Struct([nw.Field("a", nw.Int64)]) + True + + If a parent type is not specific about its inner type, we infer it as equal + + >>> nw.Struct({"a": nw.Int64}) == nw.Struct + True + """ + if type(other) is DTypeClass and issubclass(other, self.__class__): + return True + if isinstance(other, self.__class__): + return self.fields == other.fields + return False + + def __hash__(self) -> int: + return hash((self.__class__, tuple(self.fields))) + + def __iter__(self) -> Iterator[tuple[str, IntoDType]]: # pragma: no cover + for fld in self.fields: + yield fld.name, fld.dtype + + def __reversed__(self) -> Iterator[tuple[str, IntoDType]]: + for fld in reversed(self.fields): + yield fld.name, fld.dtype + + def __repr__(self) -> str: + class_name = self.__class__.__name__ + return f"{class_name}({dict(self)})" + + def to_schema(self) -> OrderedDict[str, IntoDType]: + """Return Struct dtype as a schema dict.""" + return OrderedDict(self) + + +class List(NestedType): + """Variable length list type. + + Examples: + >>> import pandas as pd + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pd.Series( + ... [["narwhal", "orca"], ["beluga", "vaquita"]], + ... dtype=pd.ArrowDtype(pa.large_list(pa.large_string())), + ... ) + >>> nw.from_native(s_native, series_only=True).dtype + List(String) + """ + + __slots__ = ("inner",) + inner: IntoDType + """The DType of the values within each list.""" + + def __init__(self, inner: IntoDType) -> None: + self.inner = inner + + def __eq__(self, other: DType | type[DType]) -> bool: # type: ignore[override] + """Check if this List is equivalent to another DType. + + Examples: + >>> import narwhals as nw + >>> nw.List(nw.Int64) == nw.List(nw.Int64) + True + >>> nw.List(nw.Int64) == nw.List(nw.Float32) + False + + If a parent type is not specific about its inner type, we infer it as equal + + >>> nw.List(nw.Int64) == nw.List + True + """ + if type(other) is DTypeClass and issubclass(other, self.__class__): + return True + if isinstance(other, self.__class__): + return self.inner == other.inner + return False + + def __hash__(self) -> int: + return hash((self.__class__, self.inner)) + + def __repr__(self) -> str: + class_name = self.__class__.__name__ + return f"{class_name}({self.inner!r})" + + +class Array(NestedType): + """Fixed length list type. + + Arguments: + inner: The datatype of the values within each array. + shape: The shape of the arrays. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([[1, 2], [3, 4], [5, 6]], dtype=pl.Array(pl.Int32, 2)) + >>> nw.from_native(s_native, series_only=True).dtype + Array(Int32, shape=(2,)) + """ + + __slots__ = ("inner", "shape", "size") + inner: IntoDType + """The DType of the values within each array.""" + size: int + """The size of the Array.""" + shape: tuple[int, ...] + """The shape of the arrays.""" + + def __init__(self, inner: IntoDType, shape: int | tuple[int, ...]) -> None: + inner_shape: tuple[int, ...] = inner.shape if isinstance(inner, Array) else () + if isinstance(shape, int): + self.inner = inner + self.size = shape + self.shape = (shape, *inner_shape) + + elif isinstance(shape, tuple) and len(shape) != 0 and isinstance(shape[0], int): + if len(shape) > 1: + inner = Array(inner, shape[1:]) + + self.inner = inner + self.size = shape[0] + self.shape = shape + inner_shape + + else: + msg = f"invalid input for shape: {shape!r}" + raise TypeError(msg) + + def __eq__(self, other: DType | type[DType]) -> bool: # type: ignore[override] + """Check if this Array is equivalent to another DType. + + Examples: + >>> import narwhals as nw + >>> nw.Array(nw.Int64, 2) == nw.Array(nw.Int64, 2) + True + >>> nw.Array(nw.Int64, 2) == nw.Array(nw.String, 2) + False + >>> nw.Array(nw.Int64, 2) == nw.Array(nw.Int64, 4) + False + + If a parent type is not specific about its inner type, we infer it as equal + + >>> nw.Array(nw.Int64, 2) == nw.Array + True + """ + if type(other) is DTypeClass and issubclass(other, self.__class__): + return True + if isinstance(other, self.__class__): + if self.shape != other.shape: + return False + return self.inner == other.inner + return False + + def __hash__(self) -> int: + return hash((self.__class__, self.inner, self.shape)) + + def __repr__(self) -> str: + # Get leaf type + dtype_ = self + for _ in self.shape: + dtype_ = dtype_.inner # type: ignore[assignment] + + class_name = self.__class__.__name__ + return f"{class_name}({dtype_!r}, shape={self.shape})" + + +class Date(TemporalType): + """Data type representing a calendar date. + + Examples: + >>> from datetime import date, timedelta + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array( + ... [[date(2024, 12, 1) + timedelta(days=d) for d in range(4)]] + ... ) + >>> nw.from_native(s_native, series_only=True).dtype + Date + """ + + +class Time(TemporalType): + """Data type representing the time of day. + + Examples: + >>> import polars as pl + >>> import pyarrow as pa + >>> import narwhals as nw + >>> import duckdb + >>> from datetime import time + >>> data = [time(9, 0), time(9, 1, 10), time(9, 2)] + >>> ser_pl = pl.Series(data) + >>> ser_pa = pa.chunked_array([pa.array(data, type=pa.time64("ns"))]) + >>> rel = duckdb.sql( + ... " SELECT * FROM (VALUES (TIME '12:00:00'), (TIME '14:30:15')) df(t)" + ... ) + + >>> nw.from_native(ser_pl, series_only=True).dtype + Time + >>> nw.from_native(ser_pa, series_only=True).dtype + Time + >>> nw.from_native(rel).collect_schema()["t"] + Time + """ + + +class Binary(DType): + """Binary type. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> import pyarrow as pa + >>> import duckdb + >>> data = [b"test1", b"test2"] + >>> ser_pl = pl.Series(data, dtype=pl.Binary) + >>> ser_pa = pa.chunked_array([pa.array(data, type=pa.binary())]) + >>> rel = duckdb.sql( + ... "SELECT * FROM (VALUES (BLOB 'test1'), (BLOB 'test2')) AS df(t)" + ... ) + + >>> nw.from_native(ser_pl, series_only=True).dtype + Binary + >>> nw.from_native(ser_pa, series_only=True).dtype + Binary + >>> nw.from_native(rel).collect_schema()["t"] + Binary + """ diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/exceptions.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/exceptions.py new file mode 100644 index 0000000000000000000000000000000000000000..447ff87a1db4c69f14a6e2f1853ddd84691680fe --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/exceptions.py @@ -0,0 +1,114 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING + +if TYPE_CHECKING: + from collections.abc import Collection, Iterable + + +class NarwhalsError(ValueError): + """Base class for all Narwhals exceptions.""" + + +class FormattedKeyError(KeyError): + """KeyError with formatted error message. + + Python's `KeyError` has special casing around formatting + (see https://bugs.python.org/issue2651). Use this class when the error + message has newlines and other special format characters. + Needed by https://github.com/tensorflow/tensorflow/issues/36857. + """ + + message: str + + def __init__(self, message: str) -> None: + self.message = message + + def __str__(self) -> str: + return self.message + + +class ColumnNotFoundError(FormattedKeyError, NarwhalsError): + """Exception raised when column name isn't present.""" + + message: str + + def __init__(self, message: str) -> None: + self.message = message + super().__init__(self.message) + + @classmethod + def from_missing_and_available_column_names( + cls, missing_columns: Iterable[str], available_columns: Collection[str], / + ) -> ColumnNotFoundError: + message = ( + f"The following columns were not found: {sorted(missing_columns)}" + f"\n\nHint: Did you mean one of these columns: {list(available_columns)}?" + ) + return ColumnNotFoundError(message) + + @classmethod + def from_available_column_names( + cls, available_columns: Collection[str] + ) -> ColumnNotFoundError: + message = ( + "The selected columns were not found." + f"\n\nHint: Did you mean one of these columns: {list(available_columns)}?" + ) + return ColumnNotFoundError(message) + + +class ComputeError(NarwhalsError): + """Exception raised when the underlying computation could not be evaluated.""" + + +class ShapeError(NarwhalsError): + """Exception raised when trying to perform operations on data structures with incompatible shapes.""" + + +class MultiOutputExpressionError(NarwhalsError): + """Exception raised when using multi-output expression in unsupported context.""" + + +class DuplicateError(NarwhalsError): + """Exception when duplicate column names are encountered.""" + + +class InvalidOperationError(NarwhalsError): + """Exception raised during invalid operations.""" + + +class InvalidIntoExprError(TypeError, NarwhalsError): + """Exception raised when object can't be converted to expression.""" + + message: str + + def __init__(self, message: str) -> None: + self.message = message + super().__init__(self.message) + + @classmethod + def from_invalid_type(cls: type, invalid_type: type) -> InvalidIntoExprError: + message = ( + f"Expected an object which can be converted into an expression, got {invalid_type}\n\n" + "Hint:\n" + "- if you were trying to select a column which does not have a string\n" + " column name, then you should explicitly use `nw.col`.\n" + " For example, `df.select(nw.col(0))` if you have a column named `0`.\n" + "- if you were trying to create a new literal column, then you \n" + " should explicitly use `nw.lit`.\n" + " For example, `df.select(nw.lit(0))` if you want to create a new\n" + " column with literal value `0`." + ) + return InvalidIntoExprError(message) + + +class UnsupportedDTypeError(NarwhalsError): + """Exception raised when trying to convert to a DType which is not supported by the given backend.""" + + +class NarwhalsUnstableWarning(UserWarning): + """Warning issued when a method or function is considered unstable in the stable api.""" + + +class PerformanceWarning(Warning): ... diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/expr.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/expr.py new file mode 100644 index 0000000000000000000000000000000000000000..9b6f616f713edbcbf5fca9232e7c5162009ab152 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/expr.py @@ -0,0 +1,2527 @@ +from __future__ import annotations + +import math +from collections.abc import Iterable, Mapping, Sequence +from typing import TYPE_CHECKING, Any, Callable + +from narwhals._expression_parsing import ExprKind, ExprNode, evaluate_nodes +from narwhals._utils import ( + _validate_rolling_arguments, + ensure_type, + flatten, + no_default, + unstable, +) +from narwhals.dtypes import _validate_dtype +from narwhals.exceptions import ComputeError, InvalidOperationError +from narwhals.expr_cat import ExprCatNamespace +from narwhals.expr_dt import ExprDateTimeNamespace +from narwhals.expr_list import ExprListNamespace +from narwhals.expr_name import ExprNameNamespace +from narwhals.expr_str import ExprStringNamespace +from narwhals.expr_struct import ExprStructNamespace +from narwhals.translate import to_native + +if TYPE_CHECKING: + from typing import NoReturn, TypeVar + + from typing_extensions import Concatenate, ParamSpec, Self + + from narwhals._compliant import CompliantExpr, CompliantNamespace + from narwhals._typing import NoDefault + from narwhals.dtypes import DType + from narwhals.series import Series + from narwhals.typing import ( + ClosedInterval, + FillNullStrategy, + IntoDType, + IntoExpr, + ModeKeepStrategy, + NonNestedLiteral, + NumericLiteral, + RankMethod, + RollingInterpolationMethod, + TemporalLiteral, + ) + + PS = ParamSpec("PS") + R = TypeVar("R") + + +class Expr: + def __init__(self, *nodes: ExprNode) -> None: + self._nodes = nodes + + def _to_compliant_expr( + self, ns: CompliantNamespace[Any, Any] + ) -> CompliantExpr[Any, Any]: + return evaluate_nodes(self._nodes, ns) + + def _append_node(self, node: ExprNode) -> Self: + return self.__class__(*self._nodes, node) + + def _with_over_node(self, node: ExprNode) -> Self: + # insert `over` before any elementwise operations. + # check "how it works" page in docs for why we do this. + new_nodes = list(self._nodes) + kwargs_no_order_by = { + key: value if key != "order_by" else [] + for (key, value) in node.kwargs.items() + } + node_without_order_by = node._with_kwargs(**kwargs_no_order_by) + n = len(new_nodes) + i = n + while i > 0 and (_node := new_nodes[i - 1]).kind is ExprKind.ELEMENTWISE: + i -= 1 + _node._push_down_over_node_in_place(node, node_without_order_by) + if i == n: + # node could not be pushed down, just append as-is + new_nodes.append(node) + return self.__class__(*new_nodes) + if node.kwargs["order_by"] and any(node.is_orderable() for node in new_nodes[:i]): + new_nodes.insert(i, node) + elif node.kwargs["partition_by"] and any( + not node.is_elementwise() for node in new_nodes[:i] + ): + new_nodes.insert(i, node_without_order_by) + elif all(node.is_elementwise() for node in new_nodes): + msg = "Cannot apply `over` to elementwise expression." + raise InvalidOperationError(msg) + return self.__class__(*new_nodes) + + def __repr__(self) -> str: + """Pretty-print the expression by combining all nodes in the metadata.""" + return ".".join(repr(node) for node in self._nodes) + + def __bool__(self) -> NoReturn: + msg = ( + f"the truth value of {type(self)} is ambiguous" + "\n\n" + "You probably got here by using a Python standard library function instead " + "of the native expressions API.\n" + "Here are some things you might want to try:\n" + "- instead of `nw.col('a') and nw.col('b')`, use `nw.col('a') & nw.col('b')`\n" + "- instead of `nw.col('a') in [y, z]`, use `nw.col('a').is_in([y, z])`\n" + "- instead of `max(nw.col('a'), nw.col('b'))`, use `nw.max_horizontal(nw.col('a'), nw.col('b'))`\n" + ) + raise TypeError(msg) + + def _taxicab_norm(self) -> Self: + # This is just used to test out the stable api feature in a realistic-ish way. + # It's not intended to be used. + return self.abs().sum() + + # --- convert --- + def alias(self, name: str) -> Self: + """Rename the expression. + + Arguments: + name: The new name. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2], "b": [4, 5]}) + >>> df = nw.from_native(df_native) + >>> df.select((nw.col("b") + 10).alias("c")) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | c | + | 0 14 | + | 1 15 | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "alias", name=name)) + + def pipe( + self, + function: Callable[Concatenate[Self, PS], R], + *args: PS.args, + **kwargs: PS.kwargs, + ) -> R: + """Pipe function call. + + Arguments: + function: Function to apply. + args: Positional arguments to pass to function. + kwargs: Keyword arguments to pass to function. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2, 3, 4]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_piped=nw.col("a").pipe(lambda x: x + 1)) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a a_piped | + | 0 1 2 | + | 1 2 3 | + | 2 3 4 | + | 3 4 5 | + └──────────────────┘ + """ + return function(self, *args, **kwargs) + + def cast(self, dtype: IntoDType) -> Self: + """Redefine an object's data type. + + Arguments: + dtype: Data type that the object will be cast into. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"foo": [1, 2, 3], "bar": [6.0, 7.0, 8.0]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("foo").cast(nw.Float32), nw.col("bar").cast(nw.UInt8)) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | foo bar | + | 0 1.0 6 | + | 1 2.0 7 | + | 2 3.0 8 | + └──────────────────┘ + """ + _validate_dtype(dtype) + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "cast", dtype=dtype)) + + # --- binary --- + def _with_binary(self, attr: str, other: Self | Any) -> Self: + node = ExprNode(ExprKind.ELEMENTWISE, attr, exprs=(other,), str_as_lit=True) + return self._append_node(node) + + def __eq__(self, other: Self | Any) -> Self: # type: ignore[override] + return self._with_binary("__eq__", other) + + def __ne__(self, other: Self | Any) -> Self: # type: ignore[override] + return self._with_binary("__ne__", other) + + def __and__(self, other: Any) -> Self: + return self._with_binary("__and__", other) + + def __rand__(self, other: Any) -> Self: + return (self & other).alias("literal") # type: ignore[no-any-return] + + def __or__(self, other: Any) -> Self: + return self._with_binary("__or__", other) + + def __ror__(self, other: Any) -> Self: + return (self | other).alias("literal") # type: ignore[no-any-return] + + def __add__(self, other: Any) -> Self: + return self._with_binary("__add__", other) + + def __radd__(self, other: Any) -> Self: + return (self + other).alias("literal") # type: ignore[no-any-return] + + def __sub__(self, other: Any) -> Self: + return self._with_binary("__sub__", other) + + def __rsub__(self, other: Any) -> Self: + return self._with_binary("__rsub__", other) + + def __truediv__(self, other: Any) -> Self: + return self._with_binary("__truediv__", other) + + def __rtruediv__(self, other: Any) -> Self: + return self._with_binary("__rtruediv__", other) + + def __mul__(self, other: Any) -> Self: + return self._with_binary("__mul__", other) + + def __rmul__(self, other: Any) -> Self: + return (self * other).alias("literal") # type: ignore[no-any-return] + + def __le__(self, other: Any) -> Self: + return self._with_binary("__le__", other) + + def __lt__(self, other: Any) -> Self: + return self._with_binary("__lt__", other) + + def __gt__(self, other: Any) -> Self: + return self._with_binary("__gt__", other) + + def __ge__(self, other: Any) -> Self: + return self._with_binary("__ge__", other) + + def __pow__(self, other: Any) -> Self: + return self._with_binary("__pow__", other) + + def __rpow__(self, other: Any) -> Self: + return self._with_binary("__rpow__", other) + + def __floordiv__(self, other: Any) -> Self: + return self._with_binary("__floordiv__", other) + + def __rfloordiv__(self, other: Any) -> Self: + return self._with_binary("__rfloordiv__", other) + + def __mod__(self, other: Any) -> Self: + return self._with_binary("__mod__", other) + + def __rmod__(self, other: Any) -> Self: + return self._with_binary("__rmod__", other) + + # --- unary --- + def __invert__(self) -> Self: + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "__invert__")) + + def any(self) -> Self: + """Return whether any of the values in the column are `True`. + + If there are no non-null elements, the result is `False`. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [True, False], "b": [True, True]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a", "b").any()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 True True | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "any")) + + def all(self) -> Self: + """Return whether all values in the column are `True`. + + If there are no non-null elements, the result is `True`. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [True, False], "b": [True, True]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a", "b").all()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 False True | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "all")) + + def ewm_mean( + self, + *, + com: float | None = None, + span: float | None = None, + half_life: float | None = None, + alpha: float | None = None, + adjust: bool = True, + min_samples: int = 1, + ignore_nulls: bool = False, + ) -> Self: + r"""Compute exponentially-weighted moving average. + + Arguments: + com: Specify decay in terms of center of mass, $\gamma$, with
$\alpha = \frac{1}{1+\gamma}\forall\gamma\geq0$ + span: Specify decay in terms of span, $\theta$, with
$\alpha = \frac{2}{\theta + 1} \forall \theta \geq 1$ + half_life: Specify decay in terms of half-life, $\tau$, with
$\alpha = 1 - \exp \left\{ \frac{ -\ln(2) }{ \tau } \right\} \forall \tau > 0$ + alpha: Specify smoothing factor alpha directly, $0 < \alpha \leq 1$. + adjust: Divide by decaying adjustment factor in beginning periods to account for imbalance in relative weightings + + - When `adjust=True` (the default) the EW function is calculated + using weights $w_i = (1 - \alpha)^i$ + - When `adjust=False` the EW function is calculated recursively by + $$ + y_0=x_0 + $$ + $$ + y_t = (1 - \alpha)y_{t - 1} + \alpha x_t + $$ + min_samples: Minimum number of observations in window required to have a value, (otherwise result is null). + ignore_nulls: Ignore missing values when calculating weights. + + - When `ignore_nulls=False` (default), weights are based on absolute + positions. + For example, the weights of $x_0$ and $x_2$ used in + calculating the final weighted average of $[x_0, None, x_2]$ are + $(1-\alpha)^2$ and $1$ if `adjust=True`, and + $(1-\alpha)^2$ and $\alpha$ if `adjust=False`. + - When `ignore_nulls=True`, weights are based + on relative positions. For example, the weights of + $x_0$ and $x_2$ used in calculating the final weighted + average of $[x_0, None, x_2]$ are + $1-\alpha$ and $1$ if `adjust=True`, + and $1-\alpha$ and $\alpha$ if `adjust=False`. + + Examples: + >>> import pandas as pd + >>> import polars as pl + >>> import narwhals as nw + >>> from narwhals.typing import IntoFrameT + >>> + >>> data = {"a": [1, 2, 3]} + >>> df_pd = pd.DataFrame(data) + >>> df_pl = pl.DataFrame(data) + + We define a library agnostic function: + + >>> def agnostic_ewm_mean(df_native: IntoFrameT) -> IntoFrameT: + ... df = nw.from_native(df_native) + ... return df.select( + ... nw.col("a").ewm_mean(com=1, ignore_nulls=False) + ... ).to_native() + + We can then pass either pandas or Polars to `agnostic_ewm_mean`: + + >>> agnostic_ewm_mean(df_pd) + a + 0 1.000000 + 1 1.666667 + 2 2.428571 + + >>> agnostic_ewm_mean(df_pl) # doctest: +NORMALIZE_WHITESPACE + shape: (3, 1) + ┌──────────┐ + │ a │ + │ --- │ + │ f64 │ + ╞══════════╡ + │ 1.0 │ + │ 1.666667 │ + │ 2.428571 │ + └──────────┘ + """ + return self._append_node( + ExprNode( + ExprKind.ORDERABLE_WINDOW, + "ewm_mean", + com=com, + span=span, + half_life=half_life, + alpha=alpha, + adjust=adjust, + min_samples=min_samples, + ignore_nulls=ignore_nulls, + ) + ) + + def mean(self) -> Self: + """Get mean value. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [-1, 0, 1], "b": [2, 4, 6]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a", "b").mean()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 0.0 4.0 | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "mean")) + + def median(self) -> Self: + """Get median value. + + Notes: + Results might slightly differ across backends due to differences in the underlying algorithms used to compute the median. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 8, 3], "b": [4, 5, 2]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a", "b").median()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 3.0 4.0 | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "median")) + + def std(self, *, ddof: int = 1) -> Self: + """Get standard deviation. + + Arguments: + ddof: "Delta Degrees of Freedom": the divisor used in the calculation is N - ddof, + where N represents the number of elements. By default ddof is 1. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [20, 25, 60], "b": [1.5, 1, -1.4]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a", "b").std(ddof=0)) + ┌─────────────────────┐ + | Narwhals DataFrame | + |---------------------| + | a b| + |0 17.79513 1.265789| + └─────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "std", ddof=ddof)) + + def var(self, *, ddof: int = 1) -> Self: + """Get variance. + + Arguments: + ddof: "Delta Degrees of Freedom": the divisor used in the calculation is N - ddof, + where N represents the number of elements. By default ddof is 1. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [20, 25, 60], "b": [1.5, 1, -1.4]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a", "b").var(ddof=0)) + ┌───────────────────────┐ + | Narwhals DataFrame | + |-----------------------| + | a b| + |0 316.666667 1.602222| + └───────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "var", ddof=ddof)) + + def map_batches( + self, + function: Callable[[Any], CompliantExpr[Any, Any]], + return_dtype: DType | None = None, + *, + returns_scalar: bool = False, + ) -> Self: + """Apply a custom python function to a whole Series or sequence of Series. + + The output of this custom function is presumed to be either a Series, + or a NumPy array (in which case it will be automatically converted into + a Series). + + Arguments: + function: Function to apply to Series. + return_dtype: Dtype of the output Series. + If not set, the dtype will be inferred based on the first non-null value + that is returned by the function. + returns_scalar: If the function returns a scalar, by default it will be wrapped + in a list in the output, since the assumption is that the function always + returns something Series-like. + If you want to keep the result as a scalar, set this argument to True. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2, 3], "b": [4, 5, 6]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... nw.col("a", "b") + ... .map_batches(lambda s: s.to_numpy() + 1, return_dtype=nw.Float64) + ... .name.suffix("_mapped") + ... ) + ┌───────────────────────────┐ + | Narwhals DataFrame | + |---------------------------| + | a b a_mapped b_mapped| + |0 1 4 2.0 5.0| + |1 2 5 3.0 6.0| + |2 3 6 4.0 7.0| + └───────────────────────────┘ + """ + kind = ( + ExprKind.ORDERABLE_AGGREGATION + if returns_scalar + else ExprKind.ORDERABLE_FILTRATION + ) + return self._append_node( + ExprNode( + kind, + "map_batches", + function=function, + return_dtype=return_dtype, + returns_scalar=returns_scalar, + ) + ) + + def skew(self) -> Self: + """Calculate the sample skewness of a column. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2, 3, 4, 5], "b": [1, 1, 2, 10, 100]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a", "b").skew()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 0.0 1.472427 | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "skew")) + + def kurtosis(self) -> Self: + """Compute the kurtosis (Fisher's definition) without bias correction. + + Kurtosis is the fourth central moment divided by the square of the variance. + The Fisher's definition is used where 3.0 is subtracted from the result to give 0.0 for a normal distribution. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2, 3, 4, 5], "b": [1, 1, 2, 10, 100]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a", "b").kurtosis()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 -1.3 0.210657 | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "kurtosis")) + + def sum(self) -> Self: + """Return the sum value. + + If there are no non-null elements, the result is zero. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> df_native = duckdb.sql("SELECT * FROM VALUES (5, 50), (10, 100) df(a, b)") + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a", "b").sum()) + ┌───────────────────┐ + |Narwhals LazyFrame | + |-------------------| + |┌────────┬────────┐| + |│ a │ b │| + |│ int128 │ int128 │| + |├────────┼────────┤| + |│ 15 │ 150 │| + |└────────┴────────┘| + └───────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "sum")) + + def min(self) -> Self: + """Returns the minimum value(s) from a column(s). + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2], "b": [4, 3]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.min("a", "b")) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 1 3 | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "min")) + + def max(self) -> Self: + """Returns the maximum value(s) from a column(s). + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [10, 20], "b": [50, 100]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.max("a", "b")) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 20 100 | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "max")) + + def count(self) -> Self: + """Returns the number of non-null elements in the column. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2, 3], "b": [None, 4, 4]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.all().count()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 3 2 | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "count")) + + def n_unique(self) -> Self: + """Returns count of unique values. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2, 3, 4, 5], "b": [1, 1, 3, 3, 5]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a", "b").n_unique()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 5 3 | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "n_unique")) + + def unique(self) -> Self: + """Return unique values of this expression. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 1, 3, 5, 5], "b": [2, 4, 4, 6, 6]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a", "b").unique().sum()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 9 12 | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.FILTRATION, "unique")) + + def abs(self) -> Self: + """Return absolute value of each element. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, -2], "b": [-3, 4]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(nw.col("a", "b").abs().name.suffix("_abs")) + ┌─────────────────────┐ + | Narwhals DataFrame | + |---------------------| + | a b a_abs b_abs| + |0 1 -3 1 3| + |1 -2 4 2 4| + └─────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "abs")) + + def cum_sum(self, *, reverse: bool = False) -> Self: + """Return cumulative sum. + + Info: + For lazy backends, this operation must be followed by `Expr.over` with + `order_by` specified, see [order-dependence](../concepts/order_dependence.md). + + Arguments: + reverse: reverse the operation + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 1, 3, 5, 5], "b": [2, 4, 4, 6, 6]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_cum_sum=nw.col("a").cum_sum()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b a_cum_sum| + |0 1 2 1| + |1 1 4 2| + |2 3 4 5| + |3 5 6 10| + |4 5 6 15| + └──────────────────┘ + """ + return self._append_node( + ExprNode(ExprKind.ORDERABLE_WINDOW, "cum_sum", reverse=reverse) + ) + + def diff(self) -> Self: + """Returns the difference between each element and the previous one. + + Info: + For lazy backends, this operation must be followed by `Expr.over` with + `order_by` specified, see [order-dependence](../concepts/order_dependence.md). + + Notes: + pandas may change the dtype here, for example when introducing missing + values in an integer column. To ensure, that the dtype doesn't change, + you may want to use `fill_null` and `cast`. For example, to calculate + the diff and fill missing values with `0` in a Int64 column, you could + do: + + nw.col("a").diff().fill_null(0).cast(nw.Int64) + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"a": [1, 1, 3, 5, 5]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_diff=nw.col("a").diff()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | shape: (5, 2) | + | ┌─────┬────────┐ | + | │ a ┆ a_diff │ | + | │ --- ┆ --- │ | + | │ i64 ┆ i64 │ | + | ╞═════╪════════╡ | + | │ 1 ┆ null │ | + | │ 1 ┆ 0 │ | + | │ 3 ┆ 2 │ | + | │ 5 ┆ 2 │ | + | │ 5 ┆ 0 │ | + | └─────┴────────┘ | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ORDERABLE_WINDOW, "diff")) + + def shift(self, n: int) -> Self: + """Shift values by `n` positions. + + Info: + For lazy backends, this operation must be followed by `Expr.over` with + `order_by` specified, see [order-dependence](../concepts/order_dependence.md). + + Arguments: + n: Number of positions to shift values by. + + Notes: + pandas may change the dtype here, for example when introducing missing + values in an integer column. To ensure, that the dtype doesn't change, + you may want to use `fill_null` and `cast`. For example, to shift + and fill missing values with `0` in a Int64 column, you could + do: + + nw.col("a").shift(1).fill_null(0).cast(nw.Int64) + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"a": [1, 1, 3, 5, 5]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_shift=nw.col("a").shift(n=1)) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + |shape: (5, 2) | + |┌─────┬─────────┐ | + |│ a ┆ a_shift │ | + |│ --- ┆ --- │ | + |│ i64 ┆ i64 │ | + |╞═════╪═════════╡ | + |│ 1 ┆ null │ | + |│ 1 ┆ 1 │ | + |│ 3 ┆ 1 │ | + |│ 5 ┆ 3 │ | + |│ 5 ┆ 5 │ | + |└─────┴─────────┘ | + └──────────────────┘ + """ + ensure_type(n, int, param_name="n") + return self._append_node(ExprNode(ExprKind.ORDERABLE_WINDOW, "shift", n=n)) + + def replace_strict( + self, + old: Sequence[Any] | Mapping[Any, Any], + new: Sequence[Any] | None = None, + *, + default: Any | NoDefault = no_default, + return_dtype: IntoDType | None = None, + ) -> Self: + """Replace all values by different values. + + Arguments: + old: Sequence of values to replace. It also accepts a mapping of values to + their replacement as syntactic sugar for + `replace_strict(old=list(mapping.keys()), new=list(mapping.values()))`. + new: Sequence of values to replace by. Length must match the length of `old`. + default: Set values that were not replaced to this value. If no default is + specified, (default), an error is raised if any values were not replaced. + Accepts expression input. Non-expression inputs are parsed as literals. + return_dtype: The data type of the resulting expression. If set to `None` + (default), the data type is determined automatically based on the other + inputs. + + Raises: + InvalidOperationError: If any non-null values in the original column were not + replaced, and no default was specified. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [3, 0, 1, 2]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... b=nw.col("a").replace_strict( + ... [0, 1, 2, 3], + ... ["zero", "one", "two", "three"], + ... return_dtype=nw.String, + ... ) + ... ) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 3 three | + | 1 0 zero | + | 2 1 one | + | 3 2 two | + └──────────────────┘ + + Replace values and set a default for values not in the mapping: + + >>> data = {"a": [1, 2, 3, 4], "b": ["beluga", "narwhal", "orca", "vaquita"]} + >>> df = nw.from_native(pd.DataFrame(data)) + >>> df.with_columns( + ... a_replaced=nw.col("a").replace_strict( + ... {1: "one", 2: "two"}, + ... default=nw.concat_str(nw.lit("default_"), nw.col("b")), + ... return_dtype=nw.String, + ... ) + ... ) + ┌──────────────────────────────┐ + | Narwhals DataFrame | + |------------------------------| + | a b a_replaced| + |0 1 beluga one| + |1 2 narwhal two| + |2 3 orca default_orca| + |3 4 vaquita default_vaquita| + └──────────────────────────────┘ + """ + if new is None: + if not isinstance(old, Mapping): + msg = "`new` argument is required if `old` argument is not a Mapping type" + raise TypeError(msg) + + new = list(old.values()) + old = list(old.keys()) + + if default is no_default: + node = ExprNode( + ExprKind.ELEMENTWISE, + "replace_strict", + default=default, + old=old, + new=new, + return_dtype=return_dtype, + ) + else: + node = ExprNode( + ExprKind.ELEMENTWISE, + "replace_strict", + exprs=(default,), + old=old, + new=new, + return_dtype=return_dtype, + str_as_lit=True, + ) + return self._append_node(node) + + # --- transform --- + def is_between( + self, + lower_bound: Any | IntoExpr, + upper_bound: Any | IntoExpr, + closed: ClosedInterval = "both", + ) -> Self: + """Check if this expression is between the given lower and upper bounds. + + Arguments: + lower_bound: Lower bound value. String literals are interpreted as column names. + upper_bound: Upper bound value. String literals are interpreted as column names. + closed: Define which sides of the interval are closed (inclusive). Options are {"left", "right", "none", "both"}. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2, 3, 4, 5]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(b=nw.col("a").is_between(2, 4, "right")) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 1 False | + | 1 2 False | + | 2 3 True | + | 3 4 True | + | 4 5 False | + └──────────────────┘ + """ + node = ExprNode( + ExprKind.ELEMENTWISE, + "is_between", + exprs=(lower_bound, upper_bound), + closed=closed, + ) + return self._append_node(node) + + def is_in(self, other: Any) -> Self: + """Check if elements of this expression are present in the other iterable. + + Arguments: + other: iterable + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2, 9, 10]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(b=nw.col("a").is_in([1, 2])) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 1 True | + | 1 2 True | + | 2 9 False | + | 3 10 False | + └──────────────────┘ + """ + if isinstance(other, Iterable) and not isinstance(other, (str, bytes)): + return self._append_node( + ExprNode( + ExprKind.ELEMENTWISE, + "is_in", + other=to_native(other, pass_through=True), + ) + ) + msg = "Narwhals `is_in` doesn't accept expressions as an argument, as opposed to Polars. You should provide an iterable instead." + raise NotImplementedError(msg) + + def filter(self, *predicates: Any) -> Self: + """Filters elements based on a condition, returning a new expression. + + Arguments: + predicates: Conditions to filter by (which get AND-ed together). + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... {"a": [2, 3, 4, 5, 6, 7], "b": [10, 11, 12, 13, 14, 15]} + ... ) + >>> df = nw.from_native(df_native) + >>> df.select( + ... nw.col("a").filter(nw.col("a") > 4), + ... nw.col("b").filter(nw.col("b") < 13), + ... ) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 3 5 10 | + | 4 6 11 | + | 5 7 12 | + └──────────────────┘ + """ + return self._append_node( + ExprNode(ExprKind.FILTRATION, "filter", exprs=predicates) + ) + + def is_null(self) -> Self: + """Returns a boolean Series indicating which values are null. + + Notes: + pandas handles null values differently from Polars and PyArrow. + See [null_handling](../concepts/null_handling.md/) for reference. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> df_native = duckdb.sql( + ... "SELECT * FROM VALUES (null, CAST('NaN' AS DOUBLE)), (2, 2.) df(a, b)" + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... a_is_null=nw.col("a").is_null(), b_is_null=nw.col("b").is_null() + ... ) + ┌──────────────────────────────────────────┐ + | Narwhals LazyFrame | + |------------------------------------------| + |┌───────┬────────┬───────────┬───────────┐| + |│ a │ b │ a_is_null │ b_is_null │| + |│ int32 │ double │ boolean │ boolean │| + |├───────┼────────┼───────────┼───────────┤| + |│ NULL │ nan │ true │ false │| + |│ 2 │ 2.0 │ false │ false │| + |└───────┴────────┴───────────┴───────────┘| + └──────────────────────────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "is_null")) + + def is_nan(self) -> Self: + """Indicate which values are NaN. + + Notes: + pandas handles null values differently from Polars and PyArrow. + See [null_handling](../concepts/null_handling.md/) for reference. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> df_native = duckdb.sql( + ... "SELECT * FROM VALUES (null, CAST('NaN' AS DOUBLE)), (2, 2.) df(a, b)" + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... a_is_nan=nw.col("a").is_nan(), b_is_nan=nw.col("b").is_nan() + ... ) + ┌────────────────────────────────────────┐ + | Narwhals LazyFrame | + |----------------------------------------| + |┌───────┬────────┬──────────┬──────────┐| + |│ a │ b │ a_is_nan │ b_is_nan │| + |│ int32 │ double │ boolean │ boolean │| + |├───────┼────────┼──────────┼──────────┤| + |│ NULL │ nan │ NULL │ true │| + |│ 2 │ 2.0 │ false │ false │| + |└───────┴────────┴──────────┴──────────┘| + └────────────────────────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "is_nan")) + + def fill_null( + self, + value: Expr | NonNestedLiteral = None, + strategy: FillNullStrategy | None = None, + limit: int | None = None, + ) -> Self: + """Fill null values with given value. + + Arguments: + value: Value or expression used to fill null values. + strategy: Strategy used to fill null values. + limit: Number of consecutive null values to fill when using the 'forward' or 'backward' strategy. + + Notes: + - pandas handles null values differently from other libraries. + See [null_handling](../concepts/null_handling.md/) + for reference. + - For pandas Series of `object` dtype, `fill_null` will not automatically change the + Series' dtype as pandas used to do. Explicitly call `cast` if you want the dtype to change. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame( + ... { + ... "a": [2, None, None, 3], + ... "b": [2.0, float("nan"), float("nan"), 3.0], + ... "c": [1, 2, 3, 4], + ... } + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... nw.col("a", "b").fill_null(0).name.suffix("_filled"), + ... nw.col("a").fill_null(nw.col("c")).name.suffix("_filled_with_c"), + ... ) + ┌────────────────────────────────────────────────────────────┐ + | Narwhals DataFrame | + |------------------------------------------------------------| + |shape: (4, 6) | + |┌──────┬─────┬─────┬──────────┬──────────┬─────────────────┐| + |│ a ┆ b ┆ c ┆ a_filled ┆ b_filled ┆ a_filled_with_c │| + |│ --- ┆ --- ┆ --- ┆ --- ┆ --- ┆ --- │| + |│ i64 ┆ f64 ┆ i64 ┆ i64 ┆ f64 ┆ i64 │| + |╞══════╪═════╪═════╪══════════╪══════════╪═════════════════╡| + |│ 2 ┆ 2.0 ┆ 1 ┆ 2 ┆ 2.0 ┆ 2 │| + |│ null ┆ NaN ┆ 2 ┆ 0 ┆ NaN ┆ 2 │| + |│ null ┆ NaN ┆ 3 ┆ 0 ┆ NaN ┆ 3 │| + |│ 3 ┆ 3.0 ┆ 4 ┆ 3 ┆ 3.0 ┆ 3 │| + |└──────┴─────┴─────┴──────────┴──────────┴─────────────────┘| + └────────────────────────────────────────────────────────────┘ + + Using a strategy: + + >>> df.select( + ... nw.col("a", "b"), + ... nw.col("a", "b") + ... .fill_null(strategy="forward", limit=1) + ... .name.suffix("_nulls_forward_filled"), + ... ) + ┌────────────────────────────────────────────────────────────────┐ + | Narwhals DataFrame | + |----------------------------------------------------------------| + |shape: (4, 4) | + |┌──────┬─────┬────────────────────────┬────────────────────────┐| + |│ a ┆ b ┆ a_nulls_forward_filled ┆ b_nulls_forward_filled │| + |│ --- ┆ --- ┆ --- ┆ --- │| + |│ i64 ┆ f64 ┆ i64 ┆ f64 │| + |╞══════╪═════╪════════════════════════╪════════════════════════╡| + |│ 2 ┆ 2.0 ┆ 2 ┆ 2.0 │| + |│ null ┆ NaN ┆ 2 ┆ NaN │| + |│ null ┆ NaN ┆ null ┆ NaN │| + |│ 3 ┆ 3.0 ┆ 3 ┆ 3.0 │| + |└──────┴─────┴────────────────────────┴────────────────────────┘| + └────────────────────────────────────────────────────────────────┘ + """ + if value is not None and strategy is not None: + msg = "cannot specify both `value` and `strategy`" + raise ValueError(msg) + if value is None and strategy is None: + msg = "must specify either a fill `value` or `strategy`" + raise ValueError(msg) + if strategy is not None and strategy not in {"forward", "backward"}: + msg = f"strategy not supported: {strategy}" + raise ValueError(msg) + + if strategy is not None: + node = ExprNode( + ExprKind.ORDERABLE_WINDOW, + "fill_null", + value=value, + strategy=strategy, + limit=limit, + ) + else: + node = ExprNode( + ExprKind.ELEMENTWISE, + "fill_null", + exprs=(value,), + strategy=strategy, + limit=limit, + str_as_lit=True, + ) + return self._append_node(node) + + def fill_nan(self, value: float | None) -> Self: + """Fill floating point NaN values with given value. + + Arguments: + value: Value used to fill NaN values. + + Notes: + This function only fills `'NaN'` values, not null ones, except for pandas + which doesn't distinguish between them. + See [null_handling](../concepts/null_handling.md/) for reference. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> df_native = duckdb.sql( + ... "SELECT * FROM VALUES (5.::DOUBLE, 50.::DOUBLE), ('NaN', null) df(a, b)" + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns(nw.col("a", "b").fill_nan(0).name.suffix("_nans_filled")) + ┌───────────────────────────────────────────────────┐ + | Narwhals LazyFrame | + |---------------------------------------------------| + |┌────────┬────────┬───────────────┬───────────────┐| + |│ a │ b │ a_nans_filled │ b_nans_filled │| + |│ double │ double │ double │ double │| + |├────────┼────────┼───────────────┼───────────────┤| + |│ 5.0 │ 50.0 │ 5.0 │ 50.0 │| + |│ nan │ NULL │ 0.0 │ NULL │| + |└────────┴────────┴───────────────┴───────────────┘| + └───────────────────────────────────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "fill_nan", value=value)) + + # --- partial reduction --- + def drop_nulls(self) -> Self: + """Drop null values. + + Notes: + pandas handles null values differently from Polars and PyArrow. + See [null_handling](../concepts/null_handling.md/) for reference. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"a": [2.0, 4.0, float("nan"), 3.0, None, 5.0]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a").drop_nulls()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | shape: (5, 1) | + | ┌─────┐ | + | │ a │ | + | │ --- │ | + | │ f64 │ | + | ╞═════╡ | + | │ 2.0 │ | + | │ 4.0 │ | + | │ NaN │ | + | │ 3.0 │ | + | │ 5.0 │ | + | └─────┘ | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.FILTRATION, "drop_nulls")) + + def over( + self, + *partition_by: str | Sequence[str], + order_by: str | Sequence[str] | None = None, + ) -> Self: + """Compute expressions over the given groups (optionally with given order). + + Arguments: + partition_by: Names of columns to compute window expression over. + Must be names of columns, as opposed to expressions - + so, this is a bit less flexible than Polars' `Expr.over`. + order_by: Column(s) to order window functions by. + For lazy backends, this argument is required when `over` is applied + to order-dependent functions, see [order-dependence](../concepts/order_dependence.md). + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2, 4], "b": ["x", "x", "y"]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_min_per_group=nw.col("a").min().over("b")) + ┌────────────────────────┐ + | Narwhals DataFrame | + |------------------------| + | a b a_min_per_group| + |0 1 x 1| + |1 2 x 1| + |2 4 y 4| + └────────────────────────┘ + + Cumulative operations are also supported, but (currently) only for + pandas and Polars: + + >>> df.with_columns(a_cum_sum_per_group=nw.col("a").cum_sum().over("b")) + ┌────────────────────────────┐ + | Narwhals DataFrame | + |----------------------------| + | a b a_cum_sum_per_group| + |0 1 x 1| + |1 2 x 3| + |2 4 y 4| + └────────────────────────────┘ + """ + flat_partition_by = flatten(partition_by) + flat_order_by = [order_by] if isinstance(order_by, str) else (order_by or []) + if not flat_partition_by and not flat_order_by: # pragma: no cover + msg = "At least one of `partition_by` or `order_by` must be specified." + raise ValueError(msg) + node = ExprNode( + ExprKind.OVER, "over", partition_by=flat_partition_by, order_by=flat_order_by + ) + return self._with_over_node(node) + + def is_duplicated(self) -> Self: + r"""Return a boolean mask indicating duplicated values. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2, 3, 1], "b": ["a", "a", "b", "c"]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(nw.all().is_duplicated().name.suffix("_is_duplicated")) + ┌─────────────────────────────────────────┐ + | Narwhals DataFrame | + |-----------------------------------------| + | a b a_is_duplicated b_is_duplicated| + |0 1 a True True| + |1 2 a False True| + |2 3 b False False| + |3 1 c True False| + └─────────────────────────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.WINDOW, "is_duplicated")) + + def is_unique(self) -> Self: + r"""Return a boolean mask indicating unique values. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2, 3, 1], "b": ["a", "a", "b", "c"]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(nw.all().is_unique().name.suffix("_is_unique")) + ┌─────────────────────────────────┐ + | Narwhals DataFrame | + |---------------------------------| + | a b a_is_unique b_is_unique| + |0 1 a False False| + |1 2 a True False| + |2 3 b True True| + |3 1 c False True| + └─────────────────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.WINDOW, "is_unique")) + + def null_count(self) -> Self: + r"""Count null values. + + Notes: + pandas handles null values differently from Polars and PyArrow. + See [null_handling](../concepts/null_handling.md/) for reference. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... {"a": [1, 2, None, 1], "b": ["a", None, "b", None]} + ... ) + >>> df = nw.from_native(df_native) + >>> df.select(nw.all().null_count()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 1 2 | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "null_count")) + + def is_first_distinct(self) -> Self: + r"""Return a boolean mask indicating the first occurrence of each distinct value. + + Info: + For lazy backends, this operation must be followed by `Expr.over` with + `order_by` specified, see [order-dependence](../concepts/order_dependence.md). + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2, 3, 1], "b": ["a", "a", "b", "c"]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... nw.all().is_first_distinct().name.suffix("_is_first_distinct") + ... ) + ┌─────────────────────────────────────────────────┐ + | Narwhals DataFrame | + |-------------------------------------------------| + | a b a_is_first_distinct b_is_first_distinct| + |0 1 a True True| + |1 2 a True False| + |2 3 b True True| + |3 1 c False True| + └─────────────────────────────────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ORDERABLE_WINDOW, "is_first_distinct")) + + def is_last_distinct(self) -> Self: + r"""Return a boolean mask indicating the last occurrence of each distinct value. + + Info: + For lazy backends, this operation must be followed by `Expr.over` with + `order_by` specified, see [order-dependence](../concepts/order_dependence.md). + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2, 3, 1], "b": ["a", "a", "b", "c"]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... nw.all().is_last_distinct().name.suffix("_is_last_distinct") + ... ) + ┌───────────────────────────────────────────────┐ + | Narwhals DataFrame | + |-----------------------------------------------| + | a b a_is_last_distinct b_is_last_distinct| + |0 1 a False False| + |1 2 a True True| + |2 3 b True True| + |3 1 c True True| + └───────────────────────────────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ORDERABLE_WINDOW, "is_last_distinct")) + + def quantile( + self, quantile: float, interpolation: RollingInterpolationMethod + ) -> Self: + r"""Get quantile value. + + Arguments: + quantile: Quantile between 0.0 and 1.0. + interpolation: Interpolation method. + + Note: + - pandas and Polars may have implementation differences for a given interpolation method. + - [dask](https://docs.dask.org/en/stable/generated/dask.dataframe.Series.quantile.html) has + its own method to approximate quantile and it doesn't implement 'nearest', 'higher', + 'lower', 'midpoint' as interpolation method - use 'linear' which is closest to the + native 'dask' - method. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... {"a": list(range(50)), "b": list(range(50, 100))} + ... ) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a", "b").quantile(0.5, interpolation="linear")) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 24.5 74.5 | + └──────────────────┘ + """ + return self._append_node( + ExprNode( + ExprKind.AGGREGATION, + "quantile", + quantile=quantile, + interpolation=interpolation, + ) + ) + + def round(self, decimals: int = 0) -> Self: + r"""Round underlying floating point data by `decimals` digits. + + Arguments: + decimals: Number of decimals to round by. + + + Notes: + For values exactly halfway between rounded decimal values pandas behaves differently than Polars and Arrow. + + pandas rounds to the nearest even value (e.g. -0.5 and 0.5 round to 0.0, 1.5 and 2.5 round to 2.0, 3.5 and + 4.5 to 4.0, etc..). + + Polars and Arrow round away from 0 (e.g. -0.5 to -1.0, 0.5 to 1.0, 1.5 to 2.0, 2.5 to 3.0, etc..). + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1.12345, 2.56789, 3.901234]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_rounded=nw.col("a").round(1)) + ┌──────────────────────┐ + | Narwhals DataFrame | + |----------------------| + | a a_rounded| + |0 1.123450 1.1| + |1 2.567890 2.6| + |2 3.901234 3.9| + └──────────────────────┘ + """ + return self._append_node( + ExprNode(ExprKind.ELEMENTWISE, "round", decimals=decimals) + ) + + def floor(self) -> Self: + r"""Compute the numerical floor. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"values": [1.1, 4.3, -1.3]}) + >>> df = nw.from_native(df_native) + >>> result = df.with_columns(floor=nw.col("values").floor()) + >>> result + ┌────────────────────────┐ + | Narwhals DataFrame | + |------------------------| + |pyarrow.Table | + |values: double | + |floor: double | + |---- | + |values: [[1.1,4.3,-1.3]]| + |floor: [[1,4,-2]] | + └────────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "floor")) + + def ceil(self) -> Self: + r"""Compute the numerical ceiling. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"values": [1.1, 4.3, -1.3]}) + >>> df = nw.from_native(df_native) + >>> result = df.with_columns(ceil=nw.col("values").ceil()) + >>> result + ┌────────────────────────┐ + | Narwhals DataFrame | + |------------------------| + |pyarrow.Table | + |values: double | + |ceil: double | + |---- | + |values: [[1.1,4.3,-1.3]]| + |ceil: [[2,5,-1]] | + └────────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "ceil")) + + def len(self) -> Self: + r"""Return the number of elements in the column. + + Null values count towards the total. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": ["x", "y", "z"], "b": [1, 2, 1]}) + >>> df = nw.from_native(df_native) + >>> df.select( + ... nw.col("a").filter(nw.col("b") == 1).len().alias("a1"), + ... nw.col("a").filter(nw.col("b") == 2).len().alias("a2"), + ... ) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a1 a2 | + | 0 2 1 | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.AGGREGATION, "len")) + + def clip( + self, + lower_bound: IntoExpr | NumericLiteral | TemporalLiteral | None = None, + upper_bound: IntoExpr | NumericLiteral | TemporalLiteral | None = None, + ) -> Self: + r"""Clip values in the Series. + + Arguments: + lower_bound: Lower bound value. String literals are treated as column names. + upper_bound: Upper bound value. String literals are treated as column names. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 2, 3]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_clipped=nw.col("a").clip(-1, 3)) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a a_clipped | + | 0 1 1 | + | 1 2 2 | + | 2 3 3 | + └──────────────────┘ + """ + if upper_bound is None: + return self._append_node( + ExprNode(ExprKind.ELEMENTWISE, "clip_lower", exprs=(lower_bound,)) + ) + if lower_bound is None: + return self._append_node( + ExprNode(ExprKind.ELEMENTWISE, "clip_upper", exprs=(upper_bound,)) + ) + return self._append_node( + ExprNode(ExprKind.ELEMENTWISE, "clip", exprs=(lower_bound, upper_bound)) + ) + + def first(self, order_by: str | Iterable[str] | None = None) -> Self: + """Get the first value. + + Notes: + For lazy backends, this can only be used with `over` or with `order_by`. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> data = {"a": [1, 1, 2, 2], "b": ["foo", None, None, "baz"]} + >>> df_native = pd.DataFrame(data) + >>> df = nw.from_native(df_native) + >>> df.select(nw.all().first()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 1 foo | + └──────────────────┘ + + >>> df.group_by("a").agg(nw.col("b").first()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 1 foo | + | 1 2 NaN | + └──────────────────┘ + """ + if order_by is None: + return self._append_node(ExprNode(ExprKind.ORDERABLE_AGGREGATION, "first")) + return self._append_node( + ExprNode( + ExprKind.AGGREGATION, + "first", + order_by=[order_by] if isinstance(order_by, str) else order_by, + ) + ) + + def last(self, order_by: str | Iterable[str] | None = None) -> Self: + """Get the last value. + + Notes: + For lazy backends, this can only be used with `over` or with `order_by`. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> data = {"a": [1, 1, 2, 2], "b": ["foo", None, None, "baz"]} + >>> df_native = pa.table(data) + >>> df = nw.from_native(df_native) + >>> df.select(nw.all().last()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | pyarrow.Table | + | a: int64 | + | b: string | + | ---- | + | a: [[2]] | + | b: [["baz"]] | + └──────────────────┘ + + >>> df.group_by("a").agg(nw.col("b").last()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + |pyarrow.Table | + |a: int64 | + |b: string | + |---- | + |a: [[1,2]] | + |b: [[null,"baz"]] | + └──────────────────┘ + """ + if order_by is None: + return self._append_node(ExprNode(ExprKind.ORDERABLE_AGGREGATION, "last")) + return self._append_node( + ExprNode( + ExprKind.AGGREGATION, + "last", + order_by=[order_by] if isinstance(order_by, str) else order_by, + ) + ) + + def mode(self, *, keep: ModeKeepStrategy = "all") -> Self: + r"""Compute the most occurring value(s). + + Can return multiple values. + + Arguments: + keep: Whether to keep all modes or any mode found. Remark that `keep='any'` + is not deterministic for multimodal values. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 1, 2, 3], "b": [1, 1, 2, 2]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a").mode()).sort("a") + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a | + | 0 1 | + └──────────────────┘ + """ + _supported_keep_values = ("all", "any") + if keep not in _supported_keep_values: # pragma: no cover + msg = f"`keep` must be one of {_supported_keep_values}, found '{keep}'" + raise ValueError(msg) + kind = ExprKind.AGGREGATION if keep == "any" else ExprKind.FILTRATION + return self._append_node(ExprNode(kind, "mode", keep=keep)) + + def is_finite(self) -> Self: + """Returns boolean values indicating which original values are finite. + + Warning: + pandas handles null values differently from Polars and PyArrow. + See [null_handling](../concepts/null_handling.md/) for reference. + `is_finite` will return False for NaN and Null's in the Dask and + pandas non-nullable backend, while for Polars, PyArrow and pandas + nullable backends null values are kept as such. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"a": [float("nan"), float("inf"), 2.0, None]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_is_finite=nw.col("a").is_finite()) + ┌──────────────────────┐ + | Narwhals DataFrame | + |----------------------| + |shape: (4, 2) | + |┌──────┬─────────────┐| + |│ a ┆ a_is_finite │| + |│ --- ┆ --- │| + |│ f64 ┆ bool │| + |╞══════╪═════════════╡| + |│ NaN ┆ false │| + |│ inf ┆ false │| + |│ 2.0 ┆ true │| + |│ null ┆ null │| + |└──────┴─────────────┘| + └──────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "is_finite")) + + def cum_count(self, *, reverse: bool = False) -> Self: + r"""Return the cumulative count of the non-null values in the column. + + Info: + For lazy backends, this operation must be followed by `Expr.over` with + `order_by` specified, see [order-dependence](../concepts/order_dependence.md). + + Arguments: + reverse: reverse the operation + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": ["x", "k", None, "d"]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... nw.col("a").cum_count().alias("a_cum_count"), + ... nw.col("a").cum_count(reverse=True).alias("a_cum_count_reverse"), + ... ) + ┌────────────────────────────────────────┐ + | Narwhals DataFrame | + |----------------------------------------| + | a a_cum_count a_cum_count_reverse| + |0 x 1 3| + |1 k 2 2| + |2 NaN 2 1| + |3 d 3 1| + └────────────────────────────────────────┘ + """ + return self._append_node( + ExprNode(ExprKind.ORDERABLE_WINDOW, "cum_count", reverse=reverse) + ) + + def cum_min(self, *, reverse: bool = False) -> Self: + r"""Return the cumulative min of the non-null values in the column. + + Info: + For lazy backends, this operation must be followed by `Expr.over` with + `order_by` specified, see [order-dependence](../concepts/order_dependence.md). + + Arguments: + reverse: reverse the operation + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [3, 1, None, 2]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... nw.col("a").cum_min().alias("a_cum_min"), + ... nw.col("a").cum_min(reverse=True).alias("a_cum_min_reverse"), + ... ) + ┌────────────────────────────────────┐ + | Narwhals DataFrame | + |------------------------------------| + | a a_cum_min a_cum_min_reverse| + |0 3.0 3.0 1.0| + |1 1.0 1.0 1.0| + |2 NaN NaN NaN| + |3 2.0 1.0 2.0| + └────────────────────────────────────┘ + """ + return self._append_node( + ExprNode(ExprKind.ORDERABLE_WINDOW, "cum_min", reverse=reverse) + ) + + def cum_max(self, *, reverse: bool = False) -> Self: + r"""Return the cumulative max of the non-null values in the column. + + Info: + For lazy backends, this operation must be followed by `Expr.over` with + `order_by` specified, see [order-dependence](../concepts/order_dependence.md). + + Arguments: + reverse: reverse the operation + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 3, None, 2]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... nw.col("a").cum_max().alias("a_cum_max"), + ... nw.col("a").cum_max(reverse=True).alias("a_cum_max_reverse"), + ... ) + ┌────────────────────────────────────┐ + | Narwhals DataFrame | + |------------------------------------| + | a a_cum_max a_cum_max_reverse| + |0 1.0 1.0 3.0| + |1 3.0 3.0 3.0| + |2 NaN NaN NaN| + |3 2.0 3.0 2.0| + └────────────────────────────────────┘ + """ + return self._append_node( + ExprNode(ExprKind.ORDERABLE_WINDOW, "cum_max", reverse=reverse) + ) + + def cum_prod(self, *, reverse: bool = False) -> Self: + r"""Return the cumulative product of the non-null values in the column. + + Info: + For lazy backends, this operation must be followed by `Expr.over` with + `order_by` specified, see [order-dependence](../concepts/order_dependence.md). + + Arguments: + reverse: reverse the operation + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1, 3, None, 2]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... nw.col("a").cum_prod().alias("a_cum_prod"), + ... nw.col("a").cum_prod(reverse=True).alias("a_cum_prod_reverse"), + ... ) + ┌──────────────────────────────────────┐ + | Narwhals DataFrame | + |--------------------------------------| + | a a_cum_prod a_cum_prod_reverse| + |0 1.0 1.0 6.0| + |1 3.0 3.0 6.0| + |2 NaN NaN NaN| + |3 2.0 6.0 2.0| + └──────────────────────────────────────┘ + """ + return self._append_node( + ExprNode(ExprKind.ORDERABLE_WINDOW, "cum_prod", reverse=reverse) + ) + + def rolling_sum( + self, window_size: int, *, min_samples: int | None = None, center: bool = False + ) -> Self: + """Apply a rolling sum (moving sum) over the values. + + A window of length `window_size` will traverse the values. The resulting values + will be aggregated to their sum. + + The window at a given row will include the row itself and the `window_size - 1` + elements before it. + + Info: + For lazy backends, this operation must be followed by `Expr.over` with + `order_by` specified, see [order-dependence](../concepts/order_dependence.md). + + Arguments: + window_size: The length of the window in number of elements. It must be a + strictly positive integer. + min_samples: The number of values in the window that should be non-null before + computing a result. If set to `None` (default), it will be set equal to + `window_size`. If provided, it must be a strictly positive integer, and + less than or equal to `window_size` + center: Set the labels at the center of the window. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1.0, 2.0, None, 4.0]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... a_rolling_sum=nw.col("a").rolling_sum(window_size=3, min_samples=1) + ... ) + ┌─────────────────────┐ + | Narwhals DataFrame | + |---------------------| + | a a_rolling_sum| + |0 1.0 1.0| + |1 2.0 3.0| + |2 NaN 3.0| + |3 4.0 6.0| + └─────────────────────┘ + """ + window_size, min_samples = _validate_rolling_arguments( + window_size=window_size, min_samples=min_samples + ) + return self._append_node( + ExprNode( + ExprKind.ORDERABLE_WINDOW, + "rolling_sum", + window_size=window_size, + min_samples=min_samples, + center=center, + ) + ) + + def rolling_mean( + self, window_size: int, *, min_samples: int | None = None, center: bool = False + ) -> Self: + """Apply a rolling mean (moving mean) over the values. + + A window of length `window_size` will traverse the values. The resulting values + will be aggregated to their mean. + + The window at a given row will include the row itself and the `window_size - 1` + elements before it. + + Info: + For lazy backends, this operation must be followed by `Expr.over` with + `order_by` specified, see [order-dependence](../concepts/order_dependence.md). + + Arguments: + window_size: The length of the window in number of elements. It must be a + strictly positive integer. + min_samples: The number of values in the window that should be non-null before + computing a result. If set to `None` (default), it will be set equal to + `window_size`. If provided, it must be a strictly positive integer, and + less than or equal to `window_size` + center: Set the labels at the center of the window. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1.0, 2.0, None, 4.0]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... a_rolling_mean=nw.col("a").rolling_mean(window_size=3, min_samples=1) + ... ) + ┌──────────────────────┐ + | Narwhals DataFrame | + |----------------------| + | a a_rolling_mean| + |0 1.0 1.0| + |1 2.0 1.5| + |2 NaN 1.5| + |3 4.0 3.0| + └──────────────────────┘ + """ + window_size, min_samples = _validate_rolling_arguments( + window_size=window_size, min_samples=min_samples + ) + + return self._append_node( + ExprNode( + ExprKind.ORDERABLE_WINDOW, + "rolling_mean", + window_size=window_size, + min_samples=min_samples, + center=center, + ) + ) + + def rolling_var( + self, + window_size: int, + *, + min_samples: int | None = None, + center: bool = False, + ddof: int = 1, + ) -> Self: + """Apply a rolling variance (moving variance) over the values. + + A window of length `window_size` will traverse the values. The resulting values + will be aggregated to their variance. + + The window at a given row will include the row itself and the `window_size - 1` + elements before it. + + Info: + For lazy backends, this operation must be followed by `Expr.over` with + `order_by` specified, see [order-dependence](../concepts/order_dependence.md). + + Arguments: + window_size: The length of the window in number of elements. It must be a + strictly positive integer. + min_samples: The number of values in the window that should be non-null before + computing a result. If set to `None` (default), it will be set equal to + `window_size`. If provided, it must be a strictly positive integer, and + less than or equal to `window_size`. + center: Set the labels at the center of the window. + ddof: Delta Degrees of Freedom; the divisor for a length N window is N - ddof. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1.0, 2.0, None, 4.0]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... a_rolling_var=nw.col("a").rolling_var(window_size=3, min_samples=1) + ... ) + ┌─────────────────────┐ + | Narwhals DataFrame | + |---------------------| + | a a_rolling_var| + |0 1.0 NaN| + |1 2.0 0.5| + |2 NaN 0.5| + |3 4.0 2.0| + └─────────────────────┘ + """ + window_size, min_samples = _validate_rolling_arguments( + window_size=window_size, min_samples=min_samples + ) + return self._append_node( + ExprNode( + ExprKind.ORDERABLE_WINDOW, + "rolling_var", + ddof=ddof, + window_size=window_size, + min_samples=min_samples, + center=center, + ) + ) + + def rolling_std( + self, + window_size: int, + *, + min_samples: int | None = None, + center: bool = False, + ddof: int = 1, + ) -> Self: + """Apply a rolling standard deviation (moving standard deviation) over the values. + + A window of length `window_size` will traverse the values. The resulting values + will be aggregated to their standard deviation. + + The window at a given row will include the row itself and the `window_size - 1` + elements before it. + + Info: + For lazy backends, this operation must be followed by `Expr.over` with + `order_by` specified, see [order-dependence](../concepts/order_dependence.md). + + Arguments: + window_size: The length of the window in number of elements. It must be a + strictly positive integer. + min_samples: The number of values in the window that should be non-null before + computing a result. If set to `None` (default), it will be set equal to + `window_size`. If provided, it must be a strictly positive integer, and + less than or equal to `window_size`. + center: Set the labels at the center of the window. + ddof: Delta Degrees of Freedom; the divisor for a length N window is N - ddof. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [1.0, 2.0, None, 4.0]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... a_rolling_std=nw.col("a").rolling_std(window_size=3, min_samples=1) + ... ) + ┌─────────────────────┐ + | Narwhals DataFrame | + |---------------------| + | a a_rolling_std| + |0 1.0 NaN| + |1 2.0 0.707107| + |2 NaN 0.707107| + |3 4.0 1.414214| + └─────────────────────┘ + """ + window_size, min_samples = _validate_rolling_arguments( + window_size=window_size, min_samples=min_samples + ) + return self._append_node( + ExprNode( + ExprKind.ORDERABLE_WINDOW, + "rolling_std", + ddof=ddof, + window_size=window_size, + min_samples=min_samples, + center=center, + ) + ) + + def rank(self, method: RankMethod = "average", *, descending: bool = False) -> Self: + """Assign ranks to data, dealing with ties appropriately. + + Notes: + The resulting dtype may differ between backends. + + Info: + For lazy backends, this operation must be followed by `Expr.over` with + `order_by` specified, see [order-dependence](../concepts/order_dependence.md). + + Arguments: + method: The method used to assign ranks to tied elements. + The following methods are available (default is 'average') + + - *"average"*: The average of the ranks that would have been assigned to + all the tied values is assigned to each value. + - *"min"*: The minimum of the ranks that would have been assigned to all + the tied values is assigned to each value. (This is also referred to + as "competition" ranking.) + - *"max"*: The maximum of the ranks that would have been assigned to all + the tied values is assigned to each value. + - *"dense"*: Like "min", but the rank of the next highest element is + assigned the rank immediately after those assigned to the tied elements. + - *"ordinal"*: All values are given a distinct rank, corresponding to the + order that the values occur in the Series. + + descending: Rank in descending order. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": [3, 6, 1, 1, 6]}) + >>> df = nw.from_native(df_native) + >>> result = df.with_columns(rank=nw.col("a").rank(method="dense")) + >>> result + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a rank | + | 0 3 2.0 | + | 1 6 3.0 | + | 2 1 1.0 | + | 3 1 1.0 | + | 4 6 3.0 | + └──────────────────┘ + """ + supported_rank_methods = {"average", "min", "max", "dense", "ordinal"} + if method not in supported_rank_methods: + msg = ( + "Ranking method must be one of {'average', 'min', 'max', 'dense', 'ordinal'}. " + f"Found '{method}'" + ) + raise ValueError(msg) + + return self._append_node( + ExprNode(ExprKind.WINDOW, "rank", method=method, descending=descending) + ) + + def log(self, base: float = math.e) -> Self: + r"""Compute the logarithm to a given base. + + Arguments: + base: Given base, defaults to `e` + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"values": [1, 2, 4]}) + >>> df = nw.from_native(df_native) + >>> result = df.with_columns( + ... log=nw.col("values").log(), log_2=nw.col("values").log(base=2) + ... ) + >>> result + ┌────────────────────────────────────────────────┐ + | Narwhals DataFrame | + |------------------------------------------------| + |pyarrow.Table | + |values: int64 | + |log: double | + |log_2: double | + |---- | + |values: [[1,2,4]] | + |log: [[0,0.6931471805599453,1.3862943611198906]]| + |log_2: [[0,1,2]] | + └────────────────────────────────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "log", base=base)) + + def exp(self) -> Self: + r"""Compute the exponent. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"values": [-1, 0, 1]}) + >>> df = nw.from_native(df_native) + >>> result = df.with_columns(exp=nw.col("values").exp()) + >>> result + ┌────────────────────────────────────────────────┐ + | Narwhals DataFrame | + |------------------------------------------------| + |pyarrow.Table | + |values: int64 | + |exp: double | + |---- | + |values: [[-1,0,1]] | + |exp: [[0.36787944117144233,1,2.718281828459045]]| + └────────────────────────────────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "exp")) + + def sin(self) -> Self: + r"""Compute the element-wise value for the sine. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> from math import pi + >>> df_native = pa.table({"values": [0, pi / 2, 3 * pi / 2]}) + >>> df = nw.from_native(df_native) + >>> result = df.with_columns(sin=nw.col("values").sin()) + >>> result + ┌─────────────────────────────────────────────────┐ + | Narwhals DataFrame | + |-------------------------------------------------| + |pyarrow.Table | + |values: double | + |sin: double | + |---- | + |values: [[0,1.5707963267948966,4.71238898038469]]| + |sin: [[0,1,-1]] | + └─────────────────────────────────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "sin")) + + def cos(self) -> Self: + r"""Compute the element-wise value for the cosine. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> from math import pi + >>> df_native = pa.table({"values": [0, pi / 2, pi]}) + >>> df = nw.from_native(df_native) + >>> result = df.with_columns(cos=nw.col("values").cos()).select( + ... nw.all().round(4) + ... ) + >>> result + ┌───────────────────────────┐ + | Narwhals DataFrame | + |---------------------------| + |pyarrow.Table | + |values: double | + |cos: double | + |---- | + |values: [[0,1.5708,3.1416]]| + |cos: [[1,0,-1]] | + └───────────────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "cos")) + + def sqrt(self) -> Self: + r"""Compute the square root of the elements. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"values": [1, 4, 9]}) + >>> df = nw.from_native(df_native) + >>> result = df.with_columns(sqrt=nw.col("values").sqrt()) + >>> result + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + |pyarrow.Table | + |values: int64 | + |sqrt: double | + |---- | + |values: [[1,4,9]] | + |sqrt: [[1,2,3]] | + └──────────────────┘ + """ + return self._append_node(ExprNode(ExprKind.ELEMENTWISE, "sqrt")) + + def is_close( # noqa: PLR0914 + self, + other: Expr | Series[Any] | NumericLiteral, + *, + abs_tol: float = 0.0, + rel_tol: float = 1e-09, + nans_equal: bool = False, + ) -> Self: + r"""Check if this expression is close, i.e. almost equal, to the other expression. + + Two values `a` and `b` are considered close if the following condition holds: + + $$ + |a-b| \le max \{ \text{rel\_tol} \cdot max \{ |a|, |b| \}, \text{abs\_tol} \} + $$ + + Arguments: + other: Values to compare with. + abs_tol: Absolute tolerance. This is the maximum allowed absolute difference + between two values. Must be non-negative. + rel_tol: Relative tolerance. This is the maximum allowed difference between + two values, relative to the larger absolute value. Must be in the range + [0, 1). + nans_equal: Whether NaN values should be considered equal. + + Notes: + The implementation of this method is symmetric and mirrors the behavior of + `math.isclose`. Specifically note that this behavior is different to + `numpy.isclose`. + + Examples: + >>> import duckdb + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> data = { + ... "x": [1.0, float("inf"), 1.41, None, float("nan")], + ... "y": [1.2, float("inf"), 1.40, None, float("nan")], + ... } + >>> _table = pa.table(data) + >>> df_native = duckdb.table("_table") + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... is_close=nw.col("x").is_close( + ... nw.col("y"), abs_tol=0.1, nans_equal=True + ... ) + ... ) + ┌──────────────────────────────┐ + | Narwhals LazyFrame | + |------------------------------| + |┌────────┬────────┬──────────┐| + |│ x │ y │ is_close │| + |│ double │ double │ boolean │| + |├────────┼────────┼──────────┤| + |│ 1.0 │ 1.2 │ false │| + |│ inf │ inf │ true │| + |│ 1.41 │ 1.4 │ true │| + |│ NULL │ NULL │ NULL │| + |│ nan │ nan │ true │| + |└────────┴────────┴──────────┘| + └──────────────────────────────┘ + """ + if abs_tol < 0: + msg = f"`abs_tol` must be non-negative but got {abs_tol}" + raise ComputeError(msg) + + if not (0 <= rel_tol < 1): + msg = f"`rel_tol` must be in the range [0, 1) but got {rel_tol}" + raise ComputeError(msg) + + from decimal import Decimal + + other_f: Expr | Series[Any] | NumericLiteral + other_abs: Expr | Series[Any] | NumericLiteral + other_is_nan: Expr | Series[Any] | bool + other_is_inf: Expr | Series[Any] | bool + other_is_not_inf: Expr | Series[Any] | bool + + # Promote to float to handle non-float numeric types (e.g. Decimal, integers). + # Adding 0.0 lets each backend decide the appropriate float type. + self_f = self + 0.0 + + if isinstance(other, (float, int, Decimal)): + from math import isinf, isnan + + other_f = float(other) + # NOTE: See https://discuss.python.org/t/inferred-type-of-function-that-calls-dunder-abs-abs/101447 + other_abs = other_f.__abs__() + other_is_nan = isnan(other_f) + other_is_inf = isinf(other_f) + + # Define the other_is_not_inf variable to prevent triggering the following warning: + # > DeprecationWarning: Bitwise inversion '~' on bool is deprecated and will be + # > removed in Python 3.16. + other_is_not_inf = not other_is_inf + + else: + other_f = other + 0.0 + other_abs, other_is_nan = other_f.abs(), other_f.is_nan() + other_is_not_inf = other_f.is_finite() | other_is_nan + other_is_inf = ~other_is_not_inf + + rel_threshold = ( + self_f.abs().clip(lower_bound=other_abs, upper_bound=None) * rel_tol + ) + tolerance = rel_threshold.clip(lower_bound=abs_tol, upper_bound=None) + + self_is_nan = self_f.is_nan() + self_is_not_inf = self_f.is_finite() | self_is_nan + + # Values are close if abs_diff <= tolerance, and both finite + is_close = ( + ((self_f - other_f).abs() <= tolerance) & self_is_not_inf & other_is_not_inf + ) + + # Handle infinity cases: infinities are close/equal if they have the same sign + self_sign, other_sign = self_f > 0, other_f > 0 + is_same_inf = (~self_is_not_inf) & other_is_inf & (self_sign == other_sign) + + # Handle nan cases: + # * If any value is NaN, then False (via `& ~either_nan`) + # * However, if `nans_equals = True` and if _both_ values are NaN, then True + either_nan = self_is_nan | other_is_nan + result = (is_close | is_same_inf) & ~either_nan + + if nans_equal: + both_nan = self_is_nan & other_is_nan + result = result | both_nan + + return result + + @unstable + def any_value(self, *, ignore_nulls: bool = False) -> Self: + """Get a random value from the column. + + Warning: + This functionality is considered **unstable** as it diverges from the polars API. + It may be changed at any point without it being considered a breaking change. + + Arguments: + ignore_nulls: Whether to ignore null values or not. + If `True` and there are no not-null elements, then `None` is returned. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> data = {"a": [1, 1, 2, 2], "b": [None, "foo", "baz", None]} + >>> df_native = pa.table(data) + >>> df = nw.from_native(df_native) + >>> df.select(nw.all().any_value(ignore_nulls=False)) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | pyarrow.Table | + | a: int64 | + | b: null | + | ---- | + | a: [[1]] | + | b: [1 nulls] | + └──────────────────┘ + + >>> df.group_by("a").agg(nw.col("b").any_value(ignore_nulls=True)) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + |pyarrow.Table | + |a: int64 | + |b: string | + |---- | + |a: [[1,2]] | + |b: [["foo","baz"]]| + └──────────────────┘ + + """ + return self._append_node( + ExprNode(ExprKind.AGGREGATION, "any_value", ignore_nulls=ignore_nulls) + ) + + @property + def str(self) -> ExprStringNamespace[Self]: + return ExprStringNamespace(self) + + @property + def dt(self) -> ExprDateTimeNamespace[Self]: + return ExprDateTimeNamespace(self) + + @property + def cat(self) -> ExprCatNamespace[Self]: + return ExprCatNamespace(self) + + @property + def name(self) -> ExprNameNamespace[Self]: + return ExprNameNamespace(self) + + @property + def list(self) -> ExprListNamespace[Self]: + return ExprListNamespace(self) + + @property + def struct(self) -> ExprStructNamespace[Self]: + return ExprStructNamespace(self) + + +__all__ = ["Expr"] diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_cat.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_cat.py new file mode 100644 index 0000000000000000000000000000000000000000..ff29bdd64d5fbd996e817e3b86f8c92fc6dae590 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_cat.py @@ -0,0 +1,41 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Generic, TypeVar + +from narwhals._expression_parsing import ExprKind, ExprNode + +if TYPE_CHECKING: + from narwhals.expr import Expr + +ExprT = TypeVar("ExprT", bound="Expr") + + +class ExprCatNamespace(Generic[ExprT]): + def __init__(self, expr: ExprT) -> None: + self._expr = expr + + def get_categories(self) -> ExprT: + """Get unique categories from column. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame( + ... {"fruits": ["apple", "mango", "mango"]}, + ... schema={"fruits": pl.Categorical}, + ... ) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("fruits").cat.get_categories()).to_native() + shape: (2, 1) + ┌────────┐ + │ fruits │ + │ --- │ + │ str │ + ╞════════╡ + │ apple │ + │ mango │ + └────────┘ + """ + return self._expr._append_node( + ExprNode(ExprKind.FILTRATION, "cat.get_categories") + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_dt.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_dt.py new file mode 100644 index 0000000000000000000000000000000000000000..3b8c31055e6db5fad7ea4cf04fd1512a23212120 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_dt.py @@ -0,0 +1,738 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Generic, TypeVar + +from narwhals._expression_parsing import ExprKind, ExprNode + +if TYPE_CHECKING: + from narwhals.expr import Expr + from narwhals.typing import TimeUnit + +ExprT = TypeVar("ExprT", bound="Expr") + + +class ExprDateTimeNamespace(Generic[ExprT]): + def __init__(self, expr: ExprT) -> None: + self._expr = expr + + def date(self) -> ExprT: + """Extract the date from underlying DateTime representation. + + Raises: + NotImplementedError: If pandas default backend is being used. + + Examples: + >>> from datetime import datetime + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame( + ... {"a": [datetime(2012, 1, 7, 10), datetime(2027, 12, 13)]} + ... ) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a").dt.date()).to_native() + shape: (2, 1) + ┌────────────┐ + │ a │ + │ --- │ + │ date │ + ╞════════════╡ + │ 2012-01-07 │ + │ 2027-12-13 │ + └────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "dt.date")) + + def year(self) -> ExprT: + """Extract year from underlying DateTime representation. + + Returns the year number in the calendar date. + + Examples: + >>> from datetime import datetime + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... {"a": [datetime(1978, 6, 1), datetime(2065, 1, 1)]} + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns(nw.col("a").dt.year().alias("year")) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a year| + |0 1978-06-01 1978| + |1 2065-01-01 2065| + └──────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "dt.year")) + + def month(self) -> ExprT: + """Extract month from underlying DateTime representation. + + Returns the month number starting from 1. The return value ranges from 1 to 12. + + Examples: + >>> from datetime import datetime + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"a": [datetime(1978, 6, 1), datetime(2065, 1, 1)]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(nw.col("a").dt.month().alias("month")).to_native() + pyarrow.Table + a: timestamp[us] + month: int64 + ---- + a: [[1978-06-01 00:00:00.000000,2065-01-01 00:00:00.000000]] + month: [[6,1]] + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "dt.month")) + + def day(self) -> ExprT: + """Extract day from underlying DateTime representation. + + Returns the day of month starting from 1. The return value ranges from 1 to 31. (The last day of month differs by months.) + + Examples: + >>> from datetime import datetime + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"a": [datetime(1978, 6, 1), datetime(2065, 1, 1)]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(nw.col("a").dt.day().alias("day")).to_native() + pyarrow.Table + a: timestamp[us] + day: int64 + ---- + a: [[1978-06-01 00:00:00.000000,2065-01-01 00:00:00.000000]] + day: [[1,1]] + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "dt.day")) + + def hour(self) -> ExprT: + """Extract hour from underlying DateTime representation. + + Returns the hour number from 0 to 23. + + Examples: + >>> from datetime import datetime + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame( + ... {"a": [datetime(1978, 1, 1, 1), datetime(2065, 1, 1, 10)]} + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns(nw.col("a").dt.hour().alias("hour")) + ┌──────────────────────────────┐ + | Narwhals DataFrame | + |------------------------------| + |shape: (2, 2) | + |┌─────────────────────┬──────┐| + |│ a ┆ hour │| + |│ --- ┆ --- │| + |│ datetime[μs] ┆ i8 │| + |╞═════════════════════╪══════╡| + |│ 1978-01-01 01:00:00 ┆ 1 │| + |│ 2065-01-01 10:00:00 ┆ 10 │| + |└─────────────────────┴──────┘| + └──────────────────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "dt.hour")) + + def minute(self) -> ExprT: + """Extract minutes from underlying DateTime representation. + + Returns the minute number from 0 to 59. + + Examples: + >>> from datetime import datetime + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... {"a": [datetime(1978, 1, 1, 1, 1), datetime(2065, 1, 1, 10, 20)]} + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns(nw.col("a").dt.minute().alias("minute")).to_native() + a minute + 0 1978-01-01 01:01:00 1 + 1 2065-01-01 10:20:00 20 + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "dt.minute")) + + def second(self) -> ExprT: + """Extract seconds from underlying DateTime representation. + + Examples: + >>> from datetime import datetime + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table( + ... { + ... "a": [ + ... datetime(1978, 1, 1, 1, 1, 1), + ... datetime(2065, 1, 1, 10, 20, 30), + ... ] + ... } + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns(nw.col("a").dt.second().alias("second")).to_native() + pyarrow.Table + a: timestamp[us] + second: int64 + ---- + a: [[1978-01-01 01:01:01.000000,2065-01-01 10:20:30.000000]] + second: [[1,30]] + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "dt.second")) + + def millisecond(self) -> ExprT: + """Extract milliseconds from underlying DateTime representation. + + Examples: + >>> from datetime import datetime + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table( + ... { + ... "a": [ + ... datetime(1978, 1, 1, 1, 1, 1, 0), + ... datetime(2065, 1, 1, 10, 20, 30, 67000), + ... ] + ... } + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... nw.col("a").dt.millisecond().alias("millisecond") + ... ).to_native() + pyarrow.Table + a: timestamp[us] + millisecond: int64 + ---- + a: [[1978-01-01 01:01:01.000000,2065-01-01 10:20:30.067000]] + millisecond: [[0,67]] + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "dt.millisecond")) + + def microsecond(self) -> ExprT: + """Extract microseconds from underlying DateTime representation. + + Examples: + >>> from datetime import datetime + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table( + ... { + ... "a": [ + ... datetime(1978, 1, 1, 1, 1, 1, 0), + ... datetime(2065, 1, 1, 10, 20, 30, 67000), + ... ] + ... } + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... nw.col("a").dt.microsecond().alias("microsecond") + ... ).to_native() + pyarrow.Table + a: timestamp[us] + microsecond: int64 + ---- + a: [[1978-01-01 01:01:01.000000,2065-01-01 10:20:30.067000]] + microsecond: [[0,67000]] + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "dt.microsecond")) + + def nanosecond(self) -> ExprT: + """Extract Nanoseconds from underlying DateTime representation. + + Examples: + >>> from datetime import datetime + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table( + ... { + ... "a": [ + ... datetime(1978, 1, 1, 1, 1, 1, 0), + ... datetime(2065, 1, 1, 10, 20, 30, 67000), + ... ] + ... } + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... nw.col("a").dt.nanosecond().alias("nanosecond") + ... ).to_native() + pyarrow.Table + a: timestamp[us] + nanosecond: int64 + ---- + a: [[1978-01-01 01:01:01.000000,2065-01-01 10:20:30.067000]] + nanosecond: [[0,67000000]] + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "dt.nanosecond")) + + def ordinal_day(self) -> ExprT: + """Get ordinal day. + + Examples: + >>> from datetime import datetime + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... {"a": [datetime(2020, 1, 1), datetime(2020, 8, 3)]} + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_ordinal_day=nw.col("a").dt.ordinal_day()) + ┌───────────────────────────┐ + | Narwhals DataFrame | + |---------------------------| + | a a_ordinal_day| + |0 2020-01-01 1| + |1 2020-08-03 216| + └───────────────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "dt.ordinal_day")) + + def weekday(self) -> ExprT: + """Extract the week day from the underlying Date representation. + + Note that Monday = 1 and Sunday = 7. + + Examples: + >>> from datetime import datetime + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... {"a": [datetime(2020, 1, 1), datetime(2020, 8, 3)]} + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_week_day=nw.col("a").dt.weekday()) + ┌────────────────────────┐ + | Narwhals DataFrame | + |------------------------| + | a a_week_day| + |0 2020-01-01 3| + |1 2020-08-03 1| + └────────────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "dt.weekday")) + + def total_minutes(self) -> ExprT: + """Get total minutes. + + Notes: + The function outputs the total minutes in the int dtype by default, + however, pandas may change the dtype to float when there are missing values, + consider using `fill_null()` and `cast` in this case. + + Examples: + >>> from datetime import timedelta + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame( + ... {"a": [timedelta(minutes=10), timedelta(minutes=20, seconds=40)]} + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... a_total_minutes=nw.col("a").dt.total_minutes() + ... ).to_native() + shape: (2, 2) + ┌──────────────┬─────────────────┐ + │ a ┆ a_total_minutes │ + │ --- ┆ --- │ + │ duration[μs] ┆ i64 │ + ╞══════════════╪═════════════════╡ + │ 10m ┆ 10 │ + │ 20m 40s ┆ 20 │ + └──────────────┴─────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "dt.total_minutes")) + + def total_seconds(self) -> ExprT: + """Get total seconds. + + Notes: + The function outputs the total seconds in the int dtype by default, + however, pandas may change the dtype to float when there are missing values, + consider using `fill_null()` and `cast` in this case. + + Examples: + >>> from datetime import timedelta + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame( + ... {"a": [timedelta(seconds=10), timedelta(seconds=20, milliseconds=40)]} + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... a_total_seconds=nw.col("a").dt.total_seconds() + ... ).to_native() + shape: (2, 2) + ┌──────────────┬─────────────────┐ + │ a ┆ a_total_seconds │ + │ --- ┆ --- │ + │ duration[μs] ┆ i64 │ + ╞══════════════╪═════════════════╡ + │ 10s ┆ 10 │ + │ 20s 40ms ┆ 20 │ + └──────────────┴─────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "dt.total_seconds")) + + def total_milliseconds(self) -> ExprT: + """Get total milliseconds. + + Notes: + The function outputs the total milliseconds in the int dtype by default, + however, pandas may change the dtype to float when there are missing values, + consider using `fill_null()` and `cast` in this case. + + Examples: + >>> from datetime import timedelta + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame( + ... { + ... "a": [ + ... timedelta(milliseconds=10), + ... timedelta(milliseconds=20, microseconds=40), + ... ] + ... } + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... a_total_milliseconds=nw.col("a").dt.total_milliseconds() + ... ).to_native() + shape: (2, 2) + ┌──────────────┬──────────────────────┐ + │ a ┆ a_total_milliseconds │ + │ --- ┆ --- │ + │ duration[μs] ┆ i64 │ + ╞══════════════╪══════════════════════╡ + │ 10ms ┆ 10 │ + │ 20040µs ┆ 20 │ + └──────────────┴──────────────────────┘ + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "dt.total_milliseconds") + ) + + def total_microseconds(self) -> ExprT: + """Get total microseconds. + + Notes: + The function outputs the total microseconds in the int dtype by default, + however, pandas may change the dtype to float when there are missing values, + consider using `fill_null()` and `cast` in this case. + + Examples: + >>> from datetime import timedelta + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table( + ... { + ... "a": [ + ... timedelta(microseconds=10), + ... timedelta(milliseconds=1, microseconds=200), + ... ] + ... } + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... a_total_microseconds=nw.col("a").dt.total_microseconds() + ... ).to_native() + pyarrow.Table + a: duration[us] + a_total_microseconds: int64 + ---- + a: [[10,1200]] + a_total_microseconds: [[10,1200]] + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "dt.total_microseconds") + ) + + def total_nanoseconds(self) -> ExprT: + """Get total nanoseconds. + + Notes: + The function outputs the total nanoseconds in the int dtype by default, + however, pandas may change the dtype to float when there are missing values, + consider using `fill_null()` and `cast` in this case. + + Examples: + >>> from datetime import timedelta + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... { + ... "a": pd.to_datetime( + ... [ + ... "2024-01-01 00:00:00.000000001", + ... "2024-01-01 00:00:00.000000002", + ... ] + ... ) + ... } + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... a_diff_total_nanoseconds=nw.col("a").diff().dt.total_nanoseconds() + ... ).to_native() + a a_diff_total_nanoseconds + 0 2024-01-01 00:00:00.000000001 NaN + 1 2024-01-01 00:00:00.000000002 1.0 + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "dt.total_nanoseconds") + ) + + def to_string(self, format: str) -> ExprT: + """Convert a Date/Time/Datetime column into a String column with the given format. + + Arguments: + format: Format to format temporal column with. + + Notes: + Unfortunately, different libraries interpret format directives a bit + differently. + + - Chrono, the library used by Polars, uses `"%.f"` for fractional seconds, + whereas pandas and Python stdlib use `".%f"`. + - PyArrow interprets `"%S"` as "seconds, including fractional seconds" + whereas most other tools interpret it as "just seconds, as 2 digits". + --- + Therefore, we make the following adjustments. + + - for pandas-like libraries, we replace `"%S.%f"` with `"%S%.f"`. + - for PyArrow, we replace `"%S.%f"` with `"%S"`. + --- + Workarounds like these don't make us happy, and we try to avoid them as + much as possible, but here we feel like it's the best compromise. + + If you just want to format a date/datetime Series as a local datetime + string, and have it work as consistently as possible across libraries, + we suggest using: + + - `"%Y-%m-%dT%H:%M:%S%.f"` for datetimes + - `"%Y-%m-%d"` for dates + --- + Though note that, even then, different tools may return a different number + of trailing zeros. Nonetheless, this is probably consistent enough for + most applications. + + If you have an application where this is not enough, please open an issue + and let us know. + + Examples: + >>> from datetime import datetime + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame( + ... {"a": [datetime(2020, 3, 1), datetime(2020, 5, 1)]} + ... ) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a").dt.to_string("%Y/%m/%d %H:%M:%S")) + ┌───────────────────────┐ + | Narwhals DataFrame | + |-----------------------| + |shape: (2, 1) | + |┌─────────────────────┐| + |│ a │| + |│ --- │| + |│ str │| + |╞═════════════════════╡| + |│ 2020/03/01 00:00:00 │| + |│ 2020/05/01 00:00:00 │| + |└─────────────────────┘| + └───────────────────────┘ + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "dt.to_string", format=format) + ) + + def replace_time_zone(self, time_zone: str | None) -> ExprT: + """Replace time zone. + + Arguments: + time_zone: Target time zone. + + Examples: + >>> from datetime import datetime, timezone + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... { + ... "a": [ + ... datetime(2024, 1, 1, tzinfo=timezone.utc), + ... datetime(2024, 1, 2, tzinfo=timezone.utc), + ... ] + ... } + ... ) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a").dt.replace_time_zone("Asia/Kathmandu")).to_native() + a + 0 2024-01-01 00:00:00+05:45 + 1 2024-01-02 00:00:00+05:45 + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "dt.replace_time_zone", time_zone=time_zone) + ) + + def convert_time_zone(self, time_zone: str) -> ExprT: + """Convert to a new time zone. + + If converting from a time-zone-naive column, then conversion happens + as if converting from UTC. + + Arguments: + time_zone: Target time zone. + + Examples: + >>> from datetime import datetime, timezone + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... { + ... "a": [ + ... datetime(2024, 1, 1, tzinfo=timezone.utc), + ... datetime(2024, 1, 2, tzinfo=timezone.utc), + ... ] + ... } + ... ) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a").dt.convert_time_zone("Asia/Kathmandu")).to_native() + a + 0 2024-01-01 05:45:00+05:45 + 1 2024-01-02 05:45:00+05:45 + """ + if time_zone is None: + msg = "Target `time_zone` cannot be `None` in `convert_time_zone`. Please use `replace_time_zone(None)` if you want to remove the time zone." + raise TypeError(msg) + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "dt.convert_time_zone", time_zone=time_zone) + ) + + def timestamp(self, time_unit: TimeUnit = "us") -> ExprT: + """Return a timestamp in the given time unit. + + Arguments: + time_unit: One of + - 'ns': nanosecond. + - 'us': microsecond. + - 'ms': millisecond. + + Examples: + >>> from datetime import date + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"date": [date(2001, 1, 1), None]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(nw.col("date").dt.timestamp("ms").alias("timestamp_ms")) + ┌─────────────────────────────┐ + | Narwhals DataFrame | + |-----------------------------| + |shape: (2, 2) | + |┌────────────┬──────────────┐| + |│ date ┆ timestamp_ms │| + |│ --- ┆ --- │| + |│ date ┆ i64 │| + |╞════════════╪══════════════╡| + |│ 2001-01-01 ┆ 978307200000 │| + |│ null ┆ null │| + |└────────────┴──────────────┘| + └─────────────────────────────┘ + """ + if time_unit not in {"ns", "us", "ms"}: + msg = ( + "invalid `time_unit`" + f"\n\nExpected one of {{'ns', 'us', 'ms'}}, got {time_unit!r}." + ) + raise ValueError(msg) + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "dt.timestamp", time_unit=time_unit) + ) + + def truncate(self, every: str) -> ExprT: + """Divide the date/datetime range into buckets. + + Arguments: + every: Length of bucket. Must be of form ``, + where `multiple` is a positive integer and `unit` is one of + + - 'ns': nanosecond. + - 'us': microsecond. + - 'ms': millisecond. + - 's': second. + - 'm': minute. + - 'h': hour. + - 'd': day. + - 'mo': month. + - 'q': quarter. + - 'y': year. + + Examples: + >>> from datetime import datetime + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"datetime": [datetime(2021, 3, 1, 12, 34)]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... nw.col("datetime").dt.truncate("1h").alias("datetime_trunc") + ... ) + ┌─────────────────────────────────────────────┐ + | Narwhals DataFrame | + |---------------------------------------------| + |shape: (1, 2) | + |┌─────────────────────┬─────────────────────┐| + |│ datetime ┆ datetime_trunc │| + |│ --- ┆ --- │| + |│ datetime[μs] ┆ datetime[μs] │| + |╞═════════════════════╪═════════════════════╡| + |│ 2021-03-01 12:34:00 ┆ 2021-03-01 12:00:00 │| + |└─────────────────────┴─────────────────────┘| + └─────────────────────────────────────────────┘ + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "dt.truncate", every=every) + ) + + def offset_by(self, by: str) -> ExprT: + """Offset this date by a relative time offset. + + Arguments: + by: The offset. Must be of form ``, + where `multiple` is a positive integer and `unit` is one of + + - 'ns': nanosecond. + - 'us': microsecond. + - 'ms': millisecond. + - 's': second. + - 'm': minute. + - 'h': hour. + - 'd': day. + - 'mo': month. + - 'q': quarter. + - 'y': year. + + Examples: + >>> from datetime import datetime + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"datetime": [datetime(2021, 3, 1, 12, 34)]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... nw.col("datetime").dt.offset_by("1h").alias("datetime_offset_by_1h") + ... ) + ┌───────────────────────────────────────────────┐ + | Narwhals DataFrame | + |-----------------------------------------------| + |shape: (1, 2) | + |┌─────────────────────┬───────────────────────┐| + |│ datetime ┆ datetime_offset_by_1h │| + |│ --- ┆ --- │| + |│ datetime[μs] ┆ datetime[μs] │| + |╞═════════════════════╪═══════════════════════╡| + |│ 2021-03-01 12:34:00 ┆ 2021-03-01 13:34:00 │| + |└─────────────────────┴───────────────────────┘| + └───────────────────────────────────────────────┘ + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "dt.offset_by", by=by) + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_list.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_list.py new file mode 100644 index 0000000000000000000000000000000000000000..48f322c7ddf861f539115ecb76a52a64191dbb6f --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_list.py @@ -0,0 +1,300 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Generic, TypeVar + +from narwhals._expression_parsing import ExprKind, ExprNode + +if TYPE_CHECKING: + from narwhals.expr import Expr + from narwhals.typing import NonNestedLiteral + +ExprT = TypeVar("ExprT", bound="Expr") + + +class ExprListNamespace(Generic[ExprT]): + def __init__(self, expr: ExprT) -> None: + self._expr = expr + + def len(self) -> ExprT: + """Return the number of elements in each list. + + Null values count towards the total. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"a": [[1, 2], [3, 4, None], None, []]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_len=nw.col("a").list.len()) + ┌────────────────────────┐ + | Narwhals DataFrame | + |------------------------| + |shape: (4, 2) | + |┌──────────────┬───────┐| + |│ a ┆ a_len │| + |│ --- ┆ --- │| + |│ list[i64] ┆ u32 │| + |╞══════════════╪═══════╡| + |│ [1, 2] ┆ 2 │| + |│ [3, 4, null] ┆ 3 │| + |│ null ┆ null │| + |│ [] ┆ 0 │| + |└──────────────┴───────┘| + └────────────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "list.len")) + + def unique(self) -> ExprT: + """Get the unique/distinct values in the list. + + Null values are included in the result. The order of unique values is not guaranteed. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"a": [[1, 1, 2], [3, 3, None], None, []]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_unique=nw.col("a").list.unique()) + ┌────────────────────────────┐ + | Narwhals DataFrame | + |----------------------------| + |shape: (4, 2) | + |┌──────────────┬───────────┐| + |│ a ┆ a_unique │| + |│ --- ┆ --- │| + |│ list[i64] ┆ list[i64] │| + |╞══════════════╪═══════════╡| + |│ [1, 1, 2] ┆ [1, 2] │| + |│ [3, 3, null] ┆ [null, 3] │| + |│ null ┆ null │| + |│ [] ┆ [] │| + |└──────────────┴───────────┘| + └────────────────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "list.unique")) + + def contains(self, item: NonNestedLiteral) -> ExprT: + """Check if sublists contain the given item. + + Arguments: + item: Item that will be checked for membership. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"a": [[1, 2], None, []]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_contains_1=nw.col("a").list.contains(1)) + ┌────────────────────────────┐ + | Narwhals DataFrame | + |----------------------------| + |shape: (3, 2) | + |┌───────────┬──────────────┐| + |│ a ┆ a_contains_1 │| + |│ --- ┆ --- │| + |│ list[i64] ┆ bool │| + |╞═══════════╪══════════════╡| + |│ [1, 2] ┆ true │| + |│ null ┆ null │| + |│ [] ┆ false │| + |└───────────┴──────────────┘| + └────────────────────────────┘ + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "list.contains", item=item) + ) + + def get(self, index: int) -> ExprT: + """Return the value by index in each list. + + Negative indices are not accepted. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"a": [[1, 2], [3, 4, None], [None, 5]]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_first=nw.col("a").list.get(0)) + ┌──────────────────────────┐ + | Narwhals DataFrame | + |--------------------------| + |shape: (3, 2) | + |┌──────────────┬─────────┐| + |│ a ┆ a_first │| + |│ --- ┆ --- │| + |│ list[i64] ┆ i64 │| + |╞══════════════╪═════════╡| + |│ [1, 2] ┆ 1 │| + |│ [3, 4, null] ┆ 3 │| + |│ [null, 5] ┆ null │| + |└──────────────┴─────────┘| + └──────────────────────────┘ + """ + if not isinstance(index, int): + msg = ( + f"Index must be of type 'int'. Got type '{type(index).__name__}' instead." + ) + raise TypeError(msg) + + if index < 0: + msg = f"Index {index} is out of bounds: should be greater than or equal to 0." + raise ValueError(msg) + + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "list.get", index=index) + ) + + def min(self) -> ExprT: + """Compute the min value of the lists in the array. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> df_native = duckdb.sql("SELECT * FROM VALUES ([1]), ([3, 4, NULL]) df(a)") + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_min=nw.col("a").list.min()) + ┌────────────────────────┐ + | Narwhals LazyFrame | + |------------------------| + |┌──────────────┬───────┐| + |│ a │ a_min │| + |│ int32[] │ int32 │| + |├──────────────┼───────┤| + |│ [1] │ 1 │| + |│ [3, 4, NULL] │ 3 │| + |└──────────────┴───────┘| + └────────────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "list.min")) + + def max(self) -> ExprT: + """Compute the max value of the lists in the array. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"a": [[1], [3, 4, None]]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_max=nw.col("a").list.max()) + ┌────────────────────────┐ + | Narwhals DataFrame | + |------------------------| + |shape: (2, 2) | + |┌──────────────┬───────┐| + |│ a ┆ a_max │| + |│ --- ┆ --- │| + |│ list[i64] ┆ i64 │| + |╞══════════════╪═══════╡| + |│ [1] ┆ 1 │| + |│ [3, 4, null] ┆ 4 │| + |└──────────────┴───────┘| + └────────────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "list.max")) + + def mean(self) -> ExprT: + """Compute the mean value of the lists in the array. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"a": [[1], [3, 4, None]]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_mean=nw.col("a").list.mean()) + ┌──────────────────────┐ + | Narwhals DataFrame | + |----------------------| + |pyarrow.Table | + |a: list | + | child 0, item: int64| + |a_mean: double | + |---- | + |a: [[[1],[3,4,null]]] | + |a_mean: [[1,3.5]] | + └──────────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "list.mean")) + + def median(self) -> ExprT: + """Compute the median value of the lists in the array. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> df_native = duckdb.sql("SELECT * FROM VALUES ([1]), ([3, 4, NULL]) df(a)") + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_median=nw.col("a").list.median()) + ┌───────────────────────────┐ + | Narwhals LazyFrame | + |---------------------------| + |┌──────────────┬──────────┐| + |│ a │ a_median │| + |│ int32[] │ double │| + |├──────────────┼──────────┤| + |│ [1] │ 1.0 │| + |│ [3, 4, NULL] │ 3.5 │| + |└──────────────┴──────────┘| + └───────────────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "list.median")) + + def sum(self) -> ExprT: + """Compute the sum value of the lists in the array. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"a": [[1], [3, 4, None]]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_sum=nw.col("a").list.sum()) + ┌────────────────────────┐ + | Narwhals DataFrame | + |------------------------| + |shape: (2, 2) | + |┌──────────────┬───────┐| + |│ a ┆ a_sum │| + |│ --- ┆ --- │| + |│ list[i64] ┆ i64 │| + |╞══════════════╪═══════╡| + |│ [1] ┆ 1 │| + |│ [3, 4, null] ┆ 7 │| + |└──────────────┴───────┘| + └────────────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "list.sum")) + + def sort(self, *, descending: bool = False, nulls_last: bool = False) -> ExprT: + """Sort the lists of the expression. + + Arguments: + descending: Sort in descending order. + nulls_last: Place null values last. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> df_native = duckdb.sql( + ... "SELECT * FROM VALUES ([2, -1, 1]), ([3, -4, NULL]) df(a)" + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns(a_sorted=nw.col("a").list.sort()) + ┌─────────────────────────────────┐ + | Narwhals LazyFrame | + |---------------------------------| + |┌───────────────┬───────────────┐| + |│ a │ a_sorted │| + |│ int32[] │ int32[] │| + |├───────────────┼───────────────┤| + |│ [2, -1, 1] │ [-1, 1, 2] │| + |│ [3, -4, NULL] │ [NULL, -4, 3] │| + |└───────────────┴───────────────┘| + └─────────────────────────────────┘ + """ + return self._expr._append_node( + ExprNode( + ExprKind.ELEMENTWISE, + "list.sort", + descending=descending, + nulls_last=nulls_last, + ) + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_name.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_name.py new file mode 100644 index 0000000000000000000000000000000000000000..64525aae5636ce1702515adfdac648154ecc5364 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_name.py @@ -0,0 +1,131 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Callable, Generic, TypeVar + +from narwhals._expression_parsing import ExprKind, ExprNode + +if TYPE_CHECKING: + from narwhals.expr import Expr + +ExprT = TypeVar("ExprT", bound="Expr") + + +class ExprNameNamespace(Generic[ExprT]): + def __init__(self, expr: ExprT) -> None: + self._expr = expr + + def keep(self) -> ExprT: + r"""Keep the original root name of the expression. + + Notes: + For Polars versions prior to 1.32, this will undo any previous renaming operations on the expression. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"foo": [1, 2], "BAR": [4, 5]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("foo").alias("alias_for_foo").name.keep()).columns + ['foo'] + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "name.keep")) + + def map(self, function: Callable[[str], str]) -> ExprT: + r"""Rename the output of an expression by mapping a function over the root name. + + Arguments: + function: Function that maps a root name to a new name. + + Notes: + For Polars versions prior to 1.32, this will undo any previous renaming operations on the expression. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"foo": [1, 2], "BAR": [4, 5]}) + >>> df = nw.from_native(df_native) + >>> renaming_func = lambda s: s[::-1] # reverse column name + >>> df.select(nw.col("foo", "BAR").name.map(renaming_func)).columns + ['oof', 'RAB'] + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "name.map", function=function) + ) + + def prefix(self, prefix: str) -> ExprT: + r"""Add a prefix to the root column name of the expression. + + Arguments: + prefix: Prefix to add to the root column name. + + Notes: + For Polars versions prior to 1.32, this will undo any previous renaming operations on the expression. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"foo": [1, 2], "BAR": [4, 5]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("foo", "BAR").name.prefix("with_prefix")).columns + ['with_prefixfoo', 'with_prefixBAR'] + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "name.prefix", prefix=prefix) + ) + + def suffix(self, suffix: str) -> ExprT: + r"""Add a suffix to the root column name of the expression. + + Arguments: + suffix: Suffix to add to the root column name. + + Notes: + For Polars versions prior to 1.32, this will undo any previous renaming operations on the expression. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"foo": [1, 2], "BAR": [4, 5]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("foo", "BAR").name.suffix("_with_suffix")).columns + ['foo_with_suffix', 'BAR_with_suffix'] + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "name.suffix", suffix=suffix) + ) + + def to_lowercase(self) -> ExprT: + r"""Make the root column name lowercase. + + Notes: + For Polars versions prior to 1.32, this will undo any previous renaming operations on the expression. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"foo": [1, 2], "BAR": [4, 5]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("foo", "BAR").name.to_lowercase()).columns + ['foo', 'bar'] + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "name.to_lowercase") + ) + + def to_uppercase(self) -> ExprT: + r"""Make the root column name uppercase. + + Notes: + For Polars versions prior to 1.32, this will undo any previous renaming operations on the expression. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"foo": [1, 2], "BAR": [4, 5]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("foo", "BAR").name.to_uppercase()).columns + ['FOO', 'BAR'] + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "name.to_uppercase") + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_str.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_str.py new file mode 100644 index 0000000000000000000000000000000000000000..2dcfccac83037d156c0ae3b2b2fa0f9709d2f5f5 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_str.py @@ -0,0 +1,579 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Generic, TypeVar + +from narwhals._expression_parsing import ExprKind, ExprNode + +if TYPE_CHECKING: + from narwhals.expr import Expr + from narwhals.typing import IntoExpr + +ExprT = TypeVar("ExprT", bound="Expr") + + +class ExprStringNamespace(Generic[ExprT]): + def __init__(self, expr: ExprT) -> None: + self._expr = expr + + def len_chars(self) -> ExprT: + r"""Return the length of each string as the number of characters. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"words": ["foo", "345", None]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(words_len=nw.col("words").str.len_chars()) + ┌─────────────────────┐ + | Narwhals DataFrame | + |---------------------| + |shape: (3, 2) | + |┌───────┬───────────┐| + |│ words ┆ words_len │| + |│ --- ┆ --- │| + |│ str ┆ u32 │| + |╞═══════╪═══════════╡| + |│ foo ┆ 3 │| + |│ 345 ┆ 3 │| + |│ null ┆ null │| + |└───────┴───────────┘| + └─────────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "str.len_chars")) + + def replace( + self, pattern: str, value: str | IntoExpr, *, literal: bool = False, n: int = 1 + ) -> ExprT: + r"""Replace first matching regex/literal substring with a new string value. + + Arguments: + pattern: A valid regular expression pattern. + value: String that will replace the matched substring. + literal: Treat `pattern` as a literal string. + n: Number of matches to replace. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"foo": ["123abc", "abc abc123"]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(replaced=nw.col("foo").str.replace("abc", "")) + ┌──────────────────────┐ + | Narwhals DataFrame | + |----------------------| + | foo replaced| + |0 123abc 123| + |1 abc abc123 abc123| + └──────────────────────┘ + """ + return self._expr._append_node( + ExprNode( + ExprKind.ELEMENTWISE, + "str.replace", + exprs=(value,), + pattern=pattern, + literal=literal, + n=n, + str_as_lit=True, + ) + ) + + def replace_all( + self, pattern: str, value: IntoExpr, *, literal: bool = False + ) -> ExprT: + r"""Replace all matching regex/literal substring with a new string value. + + Arguments: + pattern: A valid regular expression pattern. + value: String that will replace the matched substring. + literal: Treat `pattern` as a literal string. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"foo": ["123abc", "abc abc123"]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(replaced=nw.col("foo").str.replace_all("abc", "")) + ┌──────────────────────┐ + | Narwhals DataFrame | + |----------------------| + | foo replaced| + |0 123abc 123| + |1 abc abc123 123| + └──────────────────────┘ + """ + return self._expr._append_node( + ExprNode( + ExprKind.ELEMENTWISE, + "str.replace_all", + exprs=(value,), + pattern=pattern, + literal=literal, + str_as_lit=True, + ) + ) + + def strip_chars(self, characters: str | None = None) -> ExprT: + r"""Remove leading and trailing characters. + + Arguments: + characters: The set of characters to be removed. All combinations of this + set of characters will be stripped from the start and end of the string. + If set to None (default), all leading and trailing whitespace is removed + instead. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"fruits": ["apple", "\nmango"]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(stripped=nw.col("fruits").str.strip_chars()).to_dict( + ... as_series=False + ... ) + {'fruits': ['apple', '\nmango'], 'stripped': ['apple', 'mango']} + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "str.strip_chars", characters=characters) + ) + + def starts_with(self, prefix: str) -> ExprT: + r"""Check if string values start with a substring. + + Arguments: + prefix: prefix substring + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"fruits": ["apple", "mango", None]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(has_prefix=nw.col("fruits").str.starts_with("app")) + ┌────────────────────┐ + | Narwhals DataFrame | + |--------------------| + | fruits has_prefix| + |0 apple True| + |1 mango False| + |2 NaN False| + └────────────────────┘ + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "str.starts_with", prefix=prefix) + ) + + def ends_with(self, suffix: str) -> ExprT: + r"""Check if string values end with a substring. + + Arguments: + suffix: suffix substring + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"fruits": ["apple", "mango", None]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(has_suffix=nw.col("fruits").str.ends_with("ngo")) + ┌────────────────────┐ + | Narwhals DataFrame | + |--------------------| + | fruits has_suffix| + |0 apple False| + |1 mango True| + |2 NaN False| + └────────────────────┘ + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "str.ends_with", suffix=suffix) + ) + + def contains(self, pattern: str | IntoExpr, *, literal: bool = False) -> ExprT: + r"""Check if string contains a substring that matches a pattern. + + Arguments: + pattern: A Character sequence, valid regular expression pattern, or another + Expr. + literal: If True, treats the pattern as a literal string. + If False, assumes the pattern is a regular expression. + + Warning: + Passing an expression as `pattern` is only supported by DuckDB, Ibis, Polars, + PySpark and SQLFrame. Other backends, such as pandas and PyArrow, will raise + a `TypeError`. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"pets": ["cat", "dog", "rabbit and parrot"]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns( + ... default_match=nw.col("pets").str.contains("cat|parrot"), + ... case_insensitive_match=nw.col("pets").str.contains("cat|(?i)parrot"), + ... ).to_native() + pyarrow.Table + pets: string + default_match: bool + case_insensitive_match: bool + ---- + pets: [["cat","dog","rabbit and parrot"]] + default_match: [[true,false,true]] + case_insensitive_match: [[true,false,true]] + """ + return self._expr._append_node( + ExprNode( + ExprKind.ELEMENTWISE, + "str.contains", + exprs=(pattern,), + literal=literal, + str_as_lit=True, + ) + ) + + def slice(self, offset: int, length: int | None = None) -> ExprT: + r"""Create subslices of the string values of an expression. + + Arguments: + offset: Start index. Negative indexing is supported. + length: Length of the slice. If set to `None` (default), the slice is taken to the + end of the string. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"s": ["pear", None, "papaya"]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(s_sliced=nw.col("s").str.slice(4, length=3)) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | s s_sliced| + |0 pear | + |1 NaN NaN| + |2 papaya ya| + └──────────────────┘ + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "str.slice", offset=offset, length=length) + ) + + def split(self, by: str) -> ExprT: + r"""Split the string values of an expression by a substring. + + Arguments: + by: Substring to split by. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"s": ["foo bar", "foo_bar"]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(nw.col("s").str.split("_").alias("s_split")) + ┌────────────────────────────┐ + | Narwhals DataFrame | + |----------------------------| + |shape: (2, 2) | + |┌─────────┬────────────────┐| + |│ s ┆ s_split │| + |│ --- ┆ --- │| + |│ str ┆ list[str] │| + |╞═════════╪════════════════╡| + |│ foo bar ┆ ["foo bar"] │| + |│ foo_bar ┆ ["foo", "bar"] │| + |└─────────┴────────────────┘| + └────────────────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "str.split", by=by)) + + def head(self, n: int = 5) -> ExprT: + r"""Take the first n elements of each string. + + Arguments: + n: Number of elements to take. Negative indexing is **not** supported. + + Notes: + If the length of the string has fewer than `n` characters, the full string is returned. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"lyrics": ["taata", "taatatata", "zukkyun"]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(lyrics_head=nw.col("lyrics").str.head()).to_native() + pyarrow.Table + lyrics: string + lyrics_head: string + ---- + lyrics: [["taata","taatatata","zukkyun"]] + lyrics_head: [["taata","taata","zukky"]] + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "str.slice", offset=0, length=n) + ) + + def tail(self, n: int = 5) -> ExprT: + r"""Take the last n elements of each string. + + Arguments: + n: Number of elements to take. Negative indexing is **not** supported. + + Notes: + If the length of the string has fewer than `n` characters, the full string is returned. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"lyrics": ["taata", "taatatata", "zukkyun"]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(lyrics_tail=nw.col("lyrics").str.tail()).to_native() + pyarrow.Table + lyrics: string + lyrics_tail: string + ---- + lyrics: [["taata","taatatata","zukkyun"]] + lyrics_tail: [["taata","atata","kkyun"]] + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "str.slice", offset=-n, length=None) + ) + + def to_datetime(self, format: str | None = None) -> ExprT: + """Convert to Datetime dtype. + + Notes: + - pandas defaults to nanosecond time unit, Polars to microsecond. + Prior to pandas 2.0, nanoseconds were the only time unit supported + in pandas, with no ability to set any other one. The ability to + set the time unit in pandas, if the version permits, will arrive. + - timezone-aware strings are all converted to and parsed as UTC. + + Warning: + As different backends auto-infer format in different ways, if `format=None` + there is no guarantee that the result will be equal. + + Arguments: + format: Format to use for conversion. If set to None (default), the format is + inferred from the data. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"a": ["2020-01-01", "2020-01-02"]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a").str.to_datetime(format="%Y-%m-%d")) + ┌───────────────────────┐ + | Narwhals DataFrame | + |-----------------------| + |shape: (2, 1) | + |┌─────────────────────┐| + |│ a │| + |│ --- │| + |│ datetime[μs] │| + |╞═════════════════════╡| + |│ 2020-01-01 00:00:00 │| + |│ 2020-01-02 00:00:00 │| + |└─────────────────────┘| + └───────────────────────┘ + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "str.to_datetime", format=format) + ) + + def to_date(self, format: str | None = None) -> ExprT: + """Convert to date dtype. + + Warning: + As different backends auto-infer format in different ways, if `format=None` + there is no guarantee that the result will be equal. + + Arguments: + format: Format to use for conversion. If set to None (default), the format is inferred from the data. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> df_native = pa.table({"a": ["2020-01-01", "2020-01-02"]}) + >>> df = nw.from_native(df_native) + >>> df.select(nw.col("a").str.to_date(format="%Y-%m-%d")) + ┌────────────────────────────┐ + | Narwhals DataFrame | + |----------------------------| + |pyarrow.Table | + |a: date32[day] | + |---- | + |a: [[2020-01-01,2020-01-02]]| + └────────────────────────────┘ + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "str.to_date", format=format) + ) + + def to_uppercase(self) -> ExprT: + r"""Transform string to uppercase variant. + + Notes: + The PyArrow backend will convert 'ß' to 'ẞ' instead of 'SS'. + For more info see [the related issue](https://github.com/apache/arrow/issues/34599). + There may be other unicode-edge-case-related variations across implementations. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"fruits": ["apple", None]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(upper_col=nw.col("fruits").str.to_uppercase()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | fruits upper_col| + |0 apple APPLE| + |1 NaN NaN| + └──────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "str.to_uppercase")) + + def to_lowercase(self) -> ExprT: + r"""Transform string to lowercase variant. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"fruits": ["APPLE", None]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(lower_col=nw.col("fruits").str.to_lowercase()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | fruits lower_col| + |0 APPLE apple| + |1 NaN NaN| + └──────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "str.to_lowercase")) + + def to_titlecase(self) -> ExprT: + """Modify strings to their titlecase equivalent. + + Notes: + This is a form of case transform where the first letter of each word is + capitalized, with the rest of the word in lowercase. + + Word boundaries are defined by non-**alphabetic** characters, matching the + behavior of [`str.title`](https://docs.python.org/3/library/stdtypes.html#str.title) + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame( + ... { + ... "quotes": [ + ... "'e.t. phone home'", + ... "you talkin' to me?", + ... "to infinity,and BEYOND!", + ... ] + ... } + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns(quotes_title=nw.col("quotes").str.to_titlecase()) + ┌─────────────────────────────────────────────────────┐ + | Narwhals DataFrame | + |-----------------------------------------------------| + |shape: (3, 2) | + |┌─────────────────────────┬─────────────────────────┐| + |│ quotes ┆ quotes_title │| + |│ --- ┆ --- │| + |│ str ┆ str │| + |╞═════════════════════════╪═════════════════════════╡| + |│ 'e.t. phone home' ┆ 'E.T. Phone Home' │| + |│ you talkin' to me? ┆ You Talkin' To Me? │| + |│ to infinity,and BEYOND! ┆ To Infinity,And Beyond! │| + |└─────────────────────────┴─────────────────────────┘| + └─────────────────────────────────────────────────────┘ + """ + return self._expr._append_node(ExprNode(ExprKind.ELEMENTWISE, "str.to_titlecase")) + + def zfill(self, width: int) -> ExprT: + """Transform string to zero-padded variant. + + Arguments: + width: The desired length of the string after padding. If the length of the + string is greater than `width`, no padding is applied. + If `width` is less than 0, no padding is applied. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"digits": ["+1", "-1", "1", None]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(zfill_col=nw.col("digits").str.zfill(3)) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | digits zfill_col| + |0 +1 +01| + |1 -1 -01| + |2 1 001| + |3 NaN NaN| + └──────────────────┘ + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "str.zfill", width=width) + ) + + def pad_start(self, length: int, fill_char: str = " ") -> ExprT: + """Pad the start of the string until it reaches the given length. + + Arguments: + length: Pad the string until it reaches this length. Strings with + length equal to or greater than this value are returned as-is. + fill_char: The character to pad the string with. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": ["cow", "monkey", "hippopotamus", None]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(padded=nw.col("a").str.pad_start(8, "*")) + ┌─────────────────────────────┐ + | Narwhals DataFrame | + |-----------------------------| + | a padded| + |0 cow *****cow| + |1 monkey **monkey| + |2 hippopotamus hippopotamus| + |3 NaN NaN| + └─────────────────────────────┘ + """ + return self._expr._append_node( + ExprNode( + ExprKind.ELEMENTWISE, "str.pad_start", length=length, fill_char=fill_char + ) + ) + + def pad_end(self, length: int, fill_char: str = " ") -> ExprT: + """Pad the end of the string until it reaches the given length. + + Arguments: + length: Pad the string until it reaches this length. Strings with + length equal to or greater than this value are returned as-is. + fill_char: The character to pad the string with. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": ["cow", "monkey", "hippopotamus", None]}) + >>> df = nw.from_native(df_native) + >>> df.with_columns(padded=nw.col("a").str.pad_end(8, "*")) + ┌─────────────────────────────┐ + | Narwhals DataFrame | + |-----------------------------| + | a padded| + |0 cow cow*****| + |1 monkey monkey**| + |2 hippopotamus hippopotamus| + |3 NaN NaN| + └─────────────────────────────┘ + """ + return self._expr._append_node( + ExprNode( + ExprKind.ELEMENTWISE, "str.pad_end", length=length, fill_char=fill_char + ) + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_struct.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_struct.py new file mode 100644 index 0000000000000000000000000000000000000000..7d734732f9629ba3d2d91b63e24258fc5aba53d6 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/expr_struct.py @@ -0,0 +1,47 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Generic, TypeVar + +from narwhals._expression_parsing import ExprKind, ExprNode + +if TYPE_CHECKING: + from narwhals.expr import Expr + +ExprT = TypeVar("ExprT", bound="Expr") + + +class ExprStructNamespace(Generic[ExprT]): + def __init__(self, expr: ExprT) -> None: + self._expr = expr + + def field(self, name: str) -> ExprT: + r"""Retrieve a Struct field as a new expression. + + Arguments: + name: Name of the struct field to retrieve. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame( + ... {"user": [{"id": "0", "name": "john"}, {"id": "1", "name": "jane"}]} + ... ) + >>> df = nw.from_native(df_native) + >>> df.with_columns(name=nw.col("user").struct.field("name")) + ┌───────────────────────┐ + | Narwhals DataFrame | + |-----------------------| + |shape: (2, 2) | + |┌──────────────┬──────┐| + |│ user ┆ name │| + |│ --- ┆ --- │| + |│ struct[2] ┆ str │| + |╞══════════════╪══════╡| + |│ {"0","john"} ┆ john │| + |│ {"1","jane"} ┆ jane │| + |└──────────────┴──────┘| + └───────────────────────┘ + """ + return self._expr._append_node( + ExprNode(ExprKind.ELEMENTWISE, "struct.field", name=name) + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/functions.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/functions.py new file mode 100644 index 0000000000000000000000000000000000000000..f8420eb54d3674f916274e521dd8f09827542a55 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/functions.py @@ -0,0 +1,1829 @@ +from __future__ import annotations + +import platform +import sys +from collections.abc import Iterable, Mapping, Sequence +from typing import TYPE_CHECKING, Any + +from narwhals._expression_parsing import ExprKind, ExprNode, is_expr, is_series +from narwhals._utils import ( + Implementation, + Version, + deprecate_native_namespace, + flatten, + is_eager_allowed, + is_nested_literal, + is_sequence_but_not_str, + normalize_path, + supports_arrow_c_stream, + validate_laziness, +) +from narwhals.dependencies import ( + is_narwhals_series, + is_numpy_array, + is_numpy_array_2d, + is_pyarrow_table, +) +from narwhals.exceptions import InvalidOperationError +from narwhals.expr import Expr +from narwhals.translate import from_native, to_native + +if TYPE_CHECKING: + from types import ModuleType + + from typing_extensions import TypeAlias, TypeIs + + from narwhals._native import NativeDataFrame, NativeLazyFrame, NativeSeries + from narwhals._translate import IntoArrowTable + from narwhals._typing import Backend, EagerAllowed, IntoBackend + from narwhals.dataframe import DataFrame, LazyFrame + from narwhals.dtypes import DType + from narwhals.series import Series + from narwhals.typing import ( + ConcatMethod, + CorrelationMethod, + FileSource, + FrameT, + IntoDType, + IntoExpr, + IntoSchema, + NonNestedLiteral, + PythonLiteral, + _2DArray, + ) + + _IntoSchema: TypeAlias = "IntoSchema | Sequence[str] | None" + + +def concat(items: Iterable[FrameT], *, how: ConcatMethod = "vertical") -> FrameT: + """Concatenate multiple DataFrames, LazyFrames into a single entity. + + Arguments: + items: DataFrames, LazyFrames to concatenate. + how: concatenating strategy + + - vertical: Concatenate vertically. Column names must match. + - horizontal: Concatenate horizontally. If lengths don't match, then + missing rows are filled with null values. This is only supported + when all inputs are (eager) DataFrames. + - diagonal: Finds a union between the column schemas and fills missing column + values with null. + + Raises: + TypeError: The items to concatenate should either all be eager, or all lazy + + Examples: + Let's take an example of vertical concatenation: + + >>> import pandas as pd + >>> import polars as pl + >>> import pyarrow as pa + >>> import narwhals as nw + + Let's look at one case a for vertical concatenation (pandas backed): + + >>> df_pd_1 = nw.from_native(pd.DataFrame({"a": [1, 2, 3], "b": [4, 5, 6]})) + >>> df_pd_2 = nw.from_native(pd.DataFrame({"a": [5, 2], "b": [1, 4]})) + >>> nw.concat([df_pd_1, df_pd_2], how="vertical") + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 1 4 | + | 1 2 5 | + | 2 3 6 | + | 0 5 1 | + | 1 2 4 | + └──────────────────┘ + + Let's look at one case a for horizontal concatenation (polars backed): + + >>> df_pl_1 = nw.from_native(pl.DataFrame({"a": [1, 2, 3], "b": [4, 5, 6]})) + >>> df_pl_2 = nw.from_native(pl.DataFrame({"c": [5, 2], "d": [1, 4]})) + >>> nw.concat([df_pl_1, df_pl_2], how="horizontal") + ┌───────────────────────────┐ + | Narwhals DataFrame | + |---------------------------| + |shape: (3, 4) | + |┌─────┬─────┬──────┬──────┐| + |│ a ┆ b ┆ c ┆ d │| + |│ --- ┆ --- ┆ --- ┆ --- │| + |│ i64 ┆ i64 ┆ i64 ┆ i64 │| + |╞═════╪═════╪══════╪══════╡| + |│ 1 ┆ 4 ┆ 5 ┆ 1 │| + |│ 2 ┆ 5 ┆ 2 ┆ 4 │| + |│ 3 ┆ 6 ┆ null ┆ null │| + |└─────┴─────┴──────┴──────┘| + └───────────────────────────┘ + + Let's look at one case a for diagonal concatenation (pyarrow backed): + + >>> df_pa_1 = nw.from_native(pa.table({"a": [1, 2], "b": [3.5, 4.5]})) + >>> df_pa_2 = nw.from_native(pa.table({"a": [3, 4], "z": ["x", "y"]})) + >>> nw.concat([df_pa_1, df_pa_2], how="diagonal") + ┌──────────────────────────┐ + | Narwhals DataFrame | + |--------------------------| + |pyarrow.Table | + |a: int64 | + |b: double | + |z: string | + |---- | + |a: [[1,2],[3,4]] | + |b: [[3.5,4.5],[null,null]]| + |z: [[null,null],["x","y"]]| + └──────────────────────────┘ + """ + from narwhals.dependencies import is_narwhals_lazyframe + + if not items: + msg = "No items to concatenate." + raise ValueError(msg) + items = tuple(items) + validate_laziness(items) + if how not in {"horizontal", "vertical", "diagonal"}: # pragma: no cover + msg = "Only vertical, horizontal and diagonal concatenations are supported." + raise NotImplementedError(msg) + first_item = items[0] + if is_narwhals_lazyframe(first_item) and how == "horizontal": + msg = ( + "Horizontal concatenation is not supported for LazyFrames.\n\n" + "Hint: you may want to use `join` instead." + ) + raise InvalidOperationError(msg) + plx = first_item.__narwhals_namespace__() + return first_item._with_compliant( + plx.concat([df._compliant_frame for df in items], how=how) + ) + + +def new_series( + name: str, + values: Any, + dtype: IntoDType | None = None, + *, + backend: IntoBackend[EagerAllowed], +) -> Series[Any]: + """Instantiate Narwhals Series from iterable (e.g. list or array). + + Arguments: + name: Name of resulting Series. + values: Values of make Series from. + dtype: (Narwhals) dtype. If not provided, the native library + may auto-infer it from `values`. + backend: specifies which eager backend instantiate to. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> values = [4, 1, 2, 3] + >>> nw.new_series(name="a", values=values, dtype=nw.Int32, backend=pd) + ┌─────────────────────┐ + | Narwhals Series | + |---------------------| + |0 4 | + |1 1 | + |2 2 | + |3 3 | + |Name: a, dtype: int32| + └─────────────────────┘ + """ + return _new_series_impl(name, values, dtype, backend=backend) + + +def _new_series_impl( + name: str, + values: Any, + dtype: IntoDType | None = None, + *, + backend: IntoBackend[EagerAllowed], +) -> Series[Any]: + implementation = Implementation.from_backend(backend) + if is_eager_allowed(implementation): + ns = Version.MAIN.namespace.from_backend(implementation).compliant + series = ns._series.from_iterable(values, name=name, context=ns, dtype=dtype) + return series.to_narwhals() + if implementation is Implementation.UNKNOWN: # pragma: no cover + _native_namespace = implementation.to_native_namespace() + try: + native_series: NativeSeries = _native_namespace.new_series( + name, values, dtype + ) + return from_native(native_series, series_only=True).alias(name) + except AttributeError as e: + msg = "Unknown namespace is expected to implement `new_series` constructor." + raise AttributeError(msg) from e + msg = ( + f"{implementation} support in Narwhals is lazy-only, but `new_series` is an eager-only function.\n\n" + "Hint: you may want to use an eager backend and then call `.lazy`, e.g.:\n\n" + f" nw.new_series('a', [1,2,3], backend='pyarrow').to_frame().lazy('{implementation}')" + ) + raise ValueError(msg) + + +@deprecate_native_namespace(warn_version="1.26.0") +def from_dict( + data: Mapping[str, Any], + schema: IntoSchema | Mapping[str, DType | None] | None = None, + *, + backend: IntoBackend[EagerAllowed] | None = None, + native_namespace: ModuleType | None = None, # noqa: ARG001 +) -> DataFrame[Any]: + """Instantiate DataFrame from dictionary. + + Indexes (if present, for pandas-like backends) are aligned following + the [left-hand-rule](../concepts/pandas_index.md/). + + Notes: + For pandas-like dataframes, conversion to schema is applied after dataframe + creation. + + Arguments: + data: Dictionary to create DataFrame from. + schema: The DataFrame schema as Schema or dict of {name: type}. If not + specified, the schema will be inferred by the native library. If + any `dtype` is `None`, the data type for that column will be inferred + by the native library. + backend: specifies which eager backend instantiate to. Only + necessary if inputs are not Narwhals Series. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + native_namespace: deprecated, same as `backend`. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> data = {"c": [5, 2], "d": [1, 4]} + >>> nw.from_dict(data, backend="pandas") + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | c d | + | 0 5 1 | + | 1 2 4 | + └──────────────────┘ + """ + if backend is None: + data, backend = _from_dict_no_backend(data) + if schema and data and (diff := set(schema.keys()).symmetric_difference(data.keys())): + msg = f"Keys in `schema` and `data` are expected to match, found unmatched keys: {diff}" + raise InvalidOperationError(msg) + implementation = Implementation.from_backend(backend) + if is_eager_allowed(implementation): + ns = Version.MAIN.namespace.from_backend(implementation).compliant + return ns._dataframe.from_dict(data, schema=schema, context=ns).to_narwhals() + if implementation is Implementation.UNKNOWN: # pragma: no cover + _native_namespace = implementation.to_native_namespace() + try: + # implementation is UNKNOWN, Narwhals extension using this feature should + # implement `from_dict` function in the top-level namespace. + native_frame: NativeDataFrame = _native_namespace.from_dict( + data, schema=schema + ) + except AttributeError as e: + msg = "Unknown namespace is expected to implement `from_dict` function." + raise AttributeError(msg) from e + return from_native(native_frame, eager_only=True) + msg = ( + f"{implementation} support in Narwhals is lazy-only, but `from_dict` is an eager-only function.\n\n" + "Hint: you may want to use an eager backend and then call `.lazy`, e.g.:\n\n" + f" nw.from_dict({{'a': [1, 2]}}, backend='pyarrow').lazy('{implementation}')" + ) + raise ValueError(msg) + + +def _from_dict_no_backend( + data: Mapping[str, Series[Any] | Any], / +) -> tuple[dict[str, Series[Any] | Any], ModuleType]: + for val in data.values(): + if is_narwhals_series(val): + native_namespace = val.__native_namespace__() + break + else: + msg = "Calling `from_dict` without `backend` is only supported if all input values are already Narwhals Series" + raise TypeError(msg) + data = {key: to_native(value, pass_through=True) for key, value in data.items()} + return data, native_namespace + + +def from_dicts( + data: Sequence[Mapping[str, Any]], + schema: IntoSchema | Mapping[str, DType | None] | None = None, + *, + backend: IntoBackend[EagerAllowed], +) -> DataFrame[Any]: + """Instantiate DataFrame from a sequence of dictionaries representing rows. + + Notes: + For pandas-like dataframes, conversion to schema is applied after dataframe + creation. + + Arguments: + data: Sequence with dictionaries mapping column name to value. + schema: The DataFrame schema as Schema or dict of {name: type}. If not + specified, the schema will be inferred by the native library. If + any `dtype` is `None`, the data type for that column will be inferred + by the native library. + backend: Specifies which eager backend instantiate to. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + + Tip: + If you expect non-uniform keys in `data`, consider passing `schema` for + more consistent results, as **inference varies between backends**: + + - pandas uses all rows + - polars uses the first 100 rows + - pyarrow uses only the first row + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> data = [ + ... {"item": "apple", "weight": 80, "price": 0.60}, + ... {"item": "egg", "weight": 55, "price": 0.40}, + ... ] + >>> nw.DataFrame.from_dicts(data, backend="polars") + ┌──────────────────────────┐ + | Narwhals DataFrame | + |--------------------------| + |shape: (2, 3) | + |┌───────┬────────┬───────┐| + |│ item ┆ weight ┆ price │| + |│ --- ┆ --- ┆ --- │| + |│ str ┆ i64 ┆ f64 │| + |╞═══════╪════════╪═══════╡| + |│ apple ┆ 80 ┆ 0.6 │| + |│ egg ┆ 55 ┆ 0.4 │| + |└───────┴────────┴───────┘| + └──────────────────────────┘ + """ + return Version.MAIN.dataframe.from_dicts(data, schema, backend=backend) + + +def from_numpy( + data: _2DArray, + schema: IntoSchema | Sequence[str] | None = None, + *, + backend: IntoBackend[EagerAllowed], +) -> DataFrame[Any]: + """Construct a DataFrame from a NumPy ndarray. + + Notes: + Only row orientation is currently supported. + + For pandas-like dataframes, conversion to schema is applied after dataframe + creation. + + Arguments: + data: Two-dimensional data represented as a NumPy ndarray. + schema: The DataFrame schema as Schema, dict of {name: type}, or a sequence of str. + backend: specifies which eager backend instantiate to. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + + Examples: + >>> import numpy as np + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> arr = np.array([[5, 2, 1], [1, 4, 3]]) + >>> schema = {"c": nw.Int16(), "d": nw.Float32(), "e": nw.Int8()} + >>> nw.from_numpy(arr, schema=schema, backend="pyarrow") + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | pyarrow.Table | + | c: int16 | + | d: float | + | e: int8 | + | ---- | + | c: [[5,1]] | + | d: [[2,4]] | + | e: [[1,3]] | + └──────────────────┘ + """ + if not is_numpy_array_2d(data): + msg = "`from_numpy` only accepts 2D numpy arrays" + raise ValueError(msg) + if not _is_into_schema(schema): + msg = ( + "`schema` is expected to be one of the following types: " + "IntoSchema | Sequence[str]. " + f"Got {type(schema)}." + ) + raise TypeError(msg) + implementation = Implementation.from_backend(backend) + if is_eager_allowed(implementation): + ns = Version.MAIN.namespace.from_backend(implementation).compliant + return ns.from_numpy(data, schema).to_narwhals() + if implementation is Implementation.UNKNOWN: # pragma: no cover + _native_namespace = implementation.to_native_namespace() + try: + # implementation is UNKNOWN, Narwhals extension using this feature should + # implement `from_numpy` function in the top-level namespace. + native_frame: NativeDataFrame = _native_namespace.from_numpy( + data, schema=schema + ) + except AttributeError as e: + msg = "Unknown namespace is expected to implement `from_numpy` function." + raise AttributeError(msg) from e + return from_native(native_frame, eager_only=True) + msg = ( + f"{implementation} support in Narwhals is lazy-only, but `from_numpy` is an eager-only function.\n\n" + "Hint: you may want to use an eager backend and then call `.lazy`, e.g.:\n\n" + f" nw.from_numpy(arr, backend='pyarrow').lazy('{implementation}')" + ) + raise ValueError(msg) + + +def _is_into_schema(obj: Any) -> TypeIs[_IntoSchema]: + from narwhals.schema import Schema + + return ( + obj is None or isinstance(obj, (Mapping, Schema)) or is_sequence_but_not_str(obj) + ) + + +def from_arrow( + native_frame: IntoArrowTable, *, backend: IntoBackend[EagerAllowed] +) -> DataFrame[Any]: # pragma: no cover + """Construct a DataFrame from an object which supports the PyCapsule Interface. + + Arguments: + native_frame: Object which implements `__arrow_c_stream__`. + backend: specifies which eager backend instantiate to. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + + Examples: + >>> import pandas as pd + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> df_native = pd.DataFrame({"a": [1, 2], "b": [4.2, 5.1]}) + >>> nw.from_arrow(df_native, backend="polars") + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | shape: (2, 2) | + | ┌─────┬─────┐ | + | │ a ┆ b │ | + | │ --- ┆ --- │ | + | │ i64 ┆ f64 │ | + | ╞═════╪═════╡ | + | │ 1 ┆ 4.2 │ | + | │ 2 ┆ 5.1 │ | + | └─────┴─────┘ | + └──────────────────┘ + """ + if not (supports_arrow_c_stream(native_frame) or is_pyarrow_table(native_frame)): + msg = f"Given object of type {type(native_frame)} does not support PyCapsule interface" + raise TypeError(msg) + implementation = Implementation.from_backend(backend) + if is_eager_allowed(implementation): + ns = Version.MAIN.namespace.from_backend(implementation).compliant + return ns._dataframe.from_arrow(native_frame, context=ns).to_narwhals() + if implementation is Implementation.UNKNOWN: # pragma: no cover + _native_namespace = implementation.to_native_namespace() + try: + # implementation is UNKNOWN, Narwhals extension using this feature should + # implement PyCapsule support + native: NativeDataFrame = _native_namespace.DataFrame(native_frame) + except AttributeError as e: + msg = "Unknown namespace is expected to implement `DataFrame` class which accepts object which supports PyCapsule Interface." + raise AttributeError(msg) from e + return from_native(native, eager_only=True) + msg = ( + f"{implementation} support in Narwhals is lazy-only, but `from_arrow` is an eager-only function.\n\n" + "Hint: you may want to use an eager backend and then call `.lazy`, e.g.:\n\n" + f" nw.from_arrow(df, backend='pyarrow').lazy('{implementation}')" + ) + raise ValueError(msg) + + +def _get_sys_info() -> dict[str, str]: + """System information. + + Returns system and Python version information + + Copied from sklearn + + Returns: + Dictionary with system info. + """ + python = sys.version.replace("\n", " ") + + blob = ( + ("python", python), + ("executable", sys.executable), + ("machine", platform.platform()), + ) + + return dict(blob) + + +def _get_deps_info() -> dict[str, str]: + """Overview of the installed version of main dependencies. + + This function does not import the modules to collect the version numbers + but instead relies on standard Python package metadata. + + Returns version information on relevant Python libraries + + This function and show_versions were copied from sklearn and adapted + + Returns: + Mapping from dependency to version. + """ + from importlib.metadata import distributions + + extra_names = ("narwhals", "numpy") + member_names = Implementation._member_names_ + exclude = {"PYSPARK_CONNECT", "UNKNOWN"} + target_names = tuple( + name.lower() for name in (*extra_names, *member_names) if name not in exclude + ) + result = dict.fromkeys(target_names, "") # Initialize with empty strings + + for dist in distributions(): + dist_name, dist_version = dist.name.lower(), dist.version + + if dist_name in result: # exact match + result[dist_name] = dist_version + else: # prefix match + for target in target_names: + if not result[target] and dist_name.startswith( + target + ): # pragma: no cover + result[target] = dist_version + break + + return result + + +def show_versions() -> None: + """Print useful debugging information. + + Examples: + >>> from narwhals import show_versions + >>> show_versions() # doctest: +SKIP + """ + sys_info = _get_sys_info() + deps_info = _get_deps_info() + + print("\nSystem:") # noqa: T201 + for k, stat in sys_info.items(): + print(f"{k:>10}: {stat}") # noqa: T201 + + print("\nPython dependencies:") # noqa: T201 + for k, stat in deps_info.items(): + print(f"{k:>13}: {stat}") # noqa: T201 + + +def _validate_separators( + separator: str, native_separators: tuple[str, ...], **kwargs: Any +) -> None: + for native_separator in native_separators: + if native_separator in kwargs and kwargs[native_separator] != separator: + msg = ( + f"`separator` and `{native_separator}` do not match: " + f"`separator`={separator} and `{native_separator}`={kwargs[native_separator]}." + ) + raise TypeError(msg) + + +def _validate_separator_pyarrow(separator: str, **kwargs: Any) -> Any: + if "parse_options" in kwargs: + parse_options = kwargs.pop("parse_options") + if parse_options.delimiter != separator: + msg = ( + "`separator` and `parse_options.delimiter` do not match: " + f"`separator`={separator} and `delimiter`={parse_options.delimiter}." + ) + raise TypeError(msg) + return kwargs + from pyarrow import csv # ignore-banned-import + + return {"parse_options": csv.ParseOptions(delimiter=separator)} + + +def read_csv( + source: FileSource, + *, + backend: IntoBackend[EagerAllowed], + separator: str = ",", + **kwargs: Any, +) -> DataFrame[Any]: + """Read a CSV file into a DataFrame. + + Arguments: + source: Path to a file. + backend: The eager backend for DataFrame creation. + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + separator: Single byte character to use as separator in the file. + kwargs: Extra keyword arguments which are passed to the native CSV reader. + For example, you could use + `nw.read_csv('file.csv', backend='pandas', engine='pyarrow')`. + + Examples: + >>> import narwhals as nw + >>> nw.read_csv("file.csv", backend="pandas") # doctest:+SKIP + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 1 4 | + | 1 2 5 | + └──────────────────┘ + """ + impl = Implementation.from_backend(backend) + native_namespace = impl.to_native_namespace() + native_frame: NativeDataFrame + if impl in {Implementation.PANDAS, Implementation.MODIN, Implementation.CUDF}: + _validate_separators(separator, ("sep",), **kwargs) + native_frame = native_namespace.read_csv( + normalize_path(source), sep=separator, **kwargs + ) + elif impl is Implementation.POLARS: + native_frame = native_namespace.read_csv( + normalize_path(source), separator=separator, **kwargs + ) + elif impl is Implementation.PYARROW: + kwargs = _validate_separator_pyarrow(separator, **kwargs) + from pyarrow import csv # ignore-banned-import + + native_frame = csv.read_csv(source, **kwargs) + elif impl in { + Implementation.PYSPARK, + Implementation.DASK, + Implementation.DUCKDB, + Implementation.IBIS, + Implementation.SQLFRAME, + Implementation.PYSPARK_CONNECT, + }: + msg = ( + f"Expected eager backend, found {impl}.\n\n" + f"Hint: use nw.scan_csv(source={source}, backend={backend})" + ) + raise ValueError(msg) + else: # pragma: no cover + try: + # implementation is UNKNOWN, Narwhals extension using this feature should + # implement `read_csv` function in the top-level namespace. + native_frame = native_namespace.read_csv(source=source, **kwargs) + except AttributeError as e: + msg = "Unknown namespace is expected to implement `read_csv` function." + raise AttributeError(msg) from e + return from_native(native_frame, eager_only=True) + + +def scan_csv( + source: FileSource, + *, + backend: IntoBackend[Backend], + separator: str = ",", + **kwargs: Any, +) -> LazyFrame[Any]: + """Lazily read from a CSV file. + + For the libraries that do not support lazy dataframes, the function reads + a csv file eagerly and then converts the resulting dataframe to a lazyframe. + + Arguments: + source: Path to a file. + backend: The eager backend for DataFrame creation. + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + separator: Single byte character to use as separator in the file. + kwargs: Extra keyword arguments which are passed to the native CSV reader. + For example, you could use + `nw.scan_csv('file.csv', backend=pd, engine='pyarrow')`. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> + >>> nw.scan_csv("file.csv", backend="duckdb").to_native() # doctest:+SKIP + ┌─────────┬───────┐ + │ a │ b │ + │ varchar │ int32 │ + ├─────────┼───────┤ + │ x │ 1 │ + │ y │ 2 │ + │ z │ 3 │ + └─────────┴───────┘ + """ + implementation = Implementation.from_backend(backend) + native_namespace = implementation.to_native_namespace() + native_frame: NativeDataFrame | NativeLazyFrame + source = normalize_path(source) + if implementation is Implementation.POLARS: + native_frame = native_namespace.scan_csv(source, separator=separator, **kwargs) + elif implementation in { + Implementation.PANDAS, + Implementation.MODIN, + Implementation.CUDF, + Implementation.DASK, + Implementation.IBIS, + }: + _validate_separators(separator, ("sep",), **kwargs) + native_frame = native_namespace.read_csv(source, sep=separator, **kwargs) + elif implementation is Implementation.DUCKDB: + _validate_separators(separator, ("delimiter", "delim", "sep"), **kwargs) + native_frame = native_namespace.read_csv(source, delimiter=separator, **kwargs) + elif implementation is Implementation.PYARROW: + kwargs = _validate_separator_pyarrow(separator, **kwargs) + from pyarrow import csv # ignore-banned-import + + native_frame = csv.read_csv(source, **kwargs) + elif implementation.is_spark_like(): + _validate_separators(separator, ("sep", "delimiter"), **kwargs) + if (session := kwargs.pop("session", None)) is None: + msg = "Spark like backends require a session object to be passed in `kwargs`." + raise ValueError(msg) + csv_reader = session.read.format("csv") + native_frame = ( + csv_reader.load(source, sep=separator) + if ( + implementation is Implementation.SQLFRAME + and implementation._backend_version() < (3, 27, 0) + ) + else csv_reader.options(sep=separator, **kwargs).load(source) + ) + else: # pragma: no cover + try: + # implementation is UNKNOWN, Narwhals extension using this feature should + # implement `scan_csv` function in the top-level namespace. + native_frame = native_namespace.scan_csv(source=source, **kwargs) + except AttributeError as e: + msg = "Unknown namespace is expected to implement `scan_csv` function." + raise AttributeError(msg) from e + return from_native(native_frame).lazy() + + +def read_parquet( + source: FileSource, *, backend: IntoBackend[EagerAllowed], **kwargs: Any +) -> DataFrame[Any]: + """Read into a DataFrame from a parquet file. + + Arguments: + source: Path to a file. + backend: The eager backend for DataFrame creation. + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + kwargs: Extra keyword arguments which are passed to the native parquet reader. + For example, you could use + `nw.read_parquet('file.parquet', backend=pd, engine='pyarrow')`. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> nw.read_parquet("file.parquet", backend="pyarrow") # doctest:+SKIP + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + |pyarrow.Table | + |a: int64 | + |c: double | + |---- | + |a: [[1,2]] | + |c: [[0.2,0.1]] | + └──────────────────┘ + """ + impl = Implementation.from_backend(backend) + native_namespace = impl.to_native_namespace() + native_frame: NativeDataFrame + if impl in { + Implementation.POLARS, + Implementation.PANDAS, + Implementation.MODIN, + Implementation.CUDF, + }: + source = normalize_path(source) + native_frame = native_namespace.read_parquet(source, **kwargs) + elif impl is Implementation.PYARROW: + import pyarrow.parquet as pq # ignore-banned-import + + native_frame = pq.read_table(source, **kwargs) # type: ignore[arg-type] + elif impl in { + Implementation.PYSPARK, + Implementation.DASK, + Implementation.DUCKDB, + Implementation.IBIS, + Implementation.SQLFRAME, + Implementation.PYSPARK_CONNECT, + }: + msg = ( + f"Expected eager backend, found {impl}.\n\n" + f"Hint: use nw.scan_parquet(source={source}, backend={backend})" + ) + raise ValueError(msg) + else: # pragma: no cover + try: + # implementation is UNKNOWN, Narwhals extension using this feature should + # implement `read_parquet` function in the top-level namespace. + native_frame = native_namespace.read_parquet(source=source, **kwargs) + except AttributeError as e: + msg = "Unknown namespace is expected to implement `read_parquet` function." + raise AttributeError(msg) from e + return from_native(native_frame, eager_only=True) + + +def scan_parquet( + source: FileSource, *, backend: IntoBackend[Backend], **kwargs: Any +) -> LazyFrame[Any]: + """Lazily read from a parquet file. + + For the libraries that do not support lazy dataframes, the function reads + a parquet file eagerly and then converts the resulting dataframe to a lazyframe. + + Note: + Spark like backends require a session object to be passed in `kwargs`. + + For instance: + + ```py + import narwhals as nw + from sqlframe.duckdb import DuckDBSession + + nw.scan_parquet(source, backend="sqlframe", session=DuckDBSession()) + ``` + + Arguments: + source: Path to a file. + backend: The eager backend for DataFrame creation. + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN`, `CUDF`, `PYSPARK` or `SQLFRAME`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"`, `"cudf"`, + `"pyspark"` or `"sqlframe"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin`, `cudf`, + `pyspark.sql` or `sqlframe`. + kwargs: Extra keyword arguments which are passed to the native parquet reader. + For example, you could use + `nw.scan_parquet('file.parquet', backend=pd, engine='pyarrow')`. + + Examples: + >>> import dask.dataframe as dd + >>> from sqlframe.duckdb import DuckDBSession + >>> import narwhals as nw + >>> + >>> nw.scan_parquet("file.parquet", backend="dask").collect() # doctest:+SKIP + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 1 4 | + | 1 2 5 | + └──────────────────┘ + >>> nw.scan_parquet( + ... "file.parquet", backend="sqlframe", session=DuckDBSession() + ... ).collect() # doctest:+SKIP + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | pyarrow.Table | + | a: int64 | + | b: int64 | + | ---- | + | a: [[1,2]] | + | b: [[4,5]] | + └──────────────────┘ + """ + implementation = Implementation.from_backend(backend) + native_namespace = implementation.to_native_namespace() + native_frame: NativeDataFrame | NativeLazyFrame + source = normalize_path(source) + if implementation is Implementation.POLARS: + native_frame = native_namespace.scan_parquet(source, **kwargs) + elif implementation in { + Implementation.PANDAS, + Implementation.MODIN, + Implementation.CUDF, + Implementation.DASK, + Implementation.DUCKDB, + Implementation.IBIS, + }: + native_frame = native_namespace.read_parquet(source, **kwargs) + elif implementation is Implementation.PYARROW: + import pyarrow.parquet as pq # ignore-banned-import + + native_frame = pq.read_table(source, **kwargs) + elif implementation.is_spark_like(): + if (session := kwargs.pop("session", None)) is None: + msg = "Spark like backends require a session object to be passed in `kwargs`." + raise ValueError(msg) + pq_reader = session.read.format("parquet") + native_frame = ( + pq_reader.load(source) + if ( + implementation is Implementation.SQLFRAME + and implementation._backend_version() < (3, 27, 0) + ) + else pq_reader.options(**kwargs).load(source) + ) + + else: # pragma: no cover + try: + # implementation is UNKNOWN, Narwhals extension using this feature should + # implement `scan_parquet` function in the top-level namespace. + native_frame = native_namespace.scan_parquet(source=source, **kwargs) + except AttributeError as e: + msg = "Unknown namespace is expected to implement `scan_parquet` function." + raise AttributeError(msg) from e + return from_native(native_frame).lazy() + + +def col(*names: str | Iterable[str]) -> Expr: + """Creates an expression that references one or more columns by their name(s). + + Arguments: + names: Name(s) of the columns to use. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> df_native = pl.DataFrame({"a": [1, 2], "b": [3, 4], "c": ["x", "z"]}) + >>> nw.from_native(df_native).select(nw.col("a", "b") * nw.col("b")) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | shape: (2, 2) | + | ┌─────┬─────┐ | + | │ a ┆ b │ | + | │ --- ┆ --- │ | + | │ i64 ┆ i64 │ | + | ╞═════╪═════╡ | + | │ 3 ┆ 9 │ | + | │ 8 ┆ 16 │ | + | └─────┴─────┘ | + └──────────────────┘ + """ + flat_names = flatten(names) + return Expr(ExprNode(ExprKind.COL, "col", names=flat_names)) + + +def exclude(*names: str | Iterable[str]) -> Expr: + """Creates an expression that excludes columns by their name(s). + + Arguments: + names: Name(s) of the columns to exclude. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> df_native = pl.DataFrame({"a": [1, 2], "b": [3, 4], "c": ["x", "z"]}) + >>> nw.from_native(df_native).select(nw.exclude("c", "a")) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | shape: (2, 1) | + | ┌─────┐ | + | │ b │ | + | │ --- │ | + | │ i64 │ | + | ╞═════╡ | + | │ 3 │ | + | │ 4 │ | + | └─────┘ | + └──────────────────┘ + """ + return Expr(ExprNode(ExprKind.EXCLUDE, "exclude", names=frozenset(flatten(names)))) + + +def nth(*indices: int | Sequence[int]) -> Expr: + """Creates an expression that references one or more columns by their index(es). + + Notes: + `nth` is not supported for Polars version<1.0.0. Please use + [`narwhals.col`][] instead. + + Arguments: + indices: One or more indices representing the columns to retrieve. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> df_native = pa.table({"a": [1, 2], "b": [3, 4], "c": [0.123, 3.14]}) + >>> nw.from_native(df_native).select(nw.nth(0, 2) * 2) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + |pyarrow.Table | + |a: int64 | + |c: double | + |---- | + |a: [[2,4]] | + |c: [[0.246,6.28]] | + └──────────────────┘ + """ + flat_indices = flatten(indices) + return Expr(ExprNode(ExprKind.NTH, "nth", indices=flat_indices)) + + +# Add underscore so it doesn't conflict with builtin `all` +def all_() -> Expr: + """Instantiate an expression representing all columns. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> df_native = pd.DataFrame({"a": [1, 2], "b": [3.14, 0.123]}) + >>> nw.from_native(df_native).select(nw.all() * 2) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 2 6.280 | + | 1 4 0.246 | + └──────────────────┘ + """ + return Expr(ExprNode(ExprKind.ALL, "all")) + + +# Add underscore so it doesn't conflict with builtin `len` +def len_() -> Expr: + """Return the number of rows. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> df_native = pl.DataFrame({"a": [1, 2], "b": [5, None]}) + >>> nw.from_native(df_native).select(nw.len()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | shape: (1, 1) | + | ┌─────┐ | + | │ len │ | + | │ --- │ | + | │ u32 │ | + | ╞═════╡ | + | │ 2 │ | + | └─────┘ | + └──────────────────┘ + """ + return Expr(ExprNode(ExprKind.AGGREGATION, "len")) + + +def sum(*columns: str) -> Expr: + """Sum all values. + + Note: + Syntactic sugar for ``nw.col(columns).sum()`` + + Arguments: + columns: Name(s) of the columns to use in the aggregation function + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> df_native = pd.DataFrame({"a": [1, 2], "b": [-1.4, 6.2]}) + >>> nw.from_native(df_native).select(nw.sum("a", "b")) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 3 4.8 | + └──────────────────┘ + """ + return col(*columns).sum() + + +def mean(*columns: str) -> Expr: + """Get the mean value. + + Note: + Syntactic sugar for ``nw.col(columns).mean()`` + + Arguments: + columns: Name(s) of the columns to use in the aggregation function + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> df_native = pa.table({"a": [1, 8, 3], "b": [3.14, 6.28, 42.1]}) + >>> nw.from_native(df_native).select(nw.mean("a", "b")) + ┌─────────────────────────┐ + | Narwhals DataFrame | + |-------------------------| + |pyarrow.Table | + |a: double | + |b: double | + |---- | + |a: [[4]] | + |b: [[17.173333333333336]]| + └─────────────────────────┘ + """ + return col(*columns).mean() + + +def median(*columns: str) -> Expr: + """Get the median value. + + Notes: + - Syntactic sugar for ``nw.col(columns).median()`` + - Results might slightly differ across backends due to differences in the + underlying algorithms used to compute the median. + + Arguments: + columns: Name(s) of the columns to use in the aggregation function + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> df_native = pl.DataFrame({"a": [4, 5, 2]}) + >>> nw.from_native(df_native).select(nw.median("a")) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | shape: (1, 1) | + | ┌─────┐ | + | │ a │ | + | │ --- │ | + | │ f64 │ | + | ╞═════╡ | + | │ 4.0 │ | + | └─────┘ | + └──────────────────┘ + """ + return col(*columns).median() + + +def min(*columns: str) -> Expr: + """Return the minimum value. + + Note: + Syntactic sugar for ``nw.col(columns).min()``. + + Arguments: + columns: Name(s) of the columns to use in the aggregation function. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> df_native = pa.table({"a": [1, 2], "b": [5, 10]}) + >>> nw.from_native(df_native).select(nw.min("a", "b")) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | pyarrow.Table | + | a: int64 | + | b: int64 | + | ---- | + | a: [[1]] | + | b: [[5]] | + └──────────────────┘ + """ + return col(*columns).min() + + +def max(*columns: str) -> Expr: + """Return the maximum value. + + Note: + Syntactic sugar for ``nw.col(columns).max()``. + + Arguments: + columns: Name(s) of the columns to use in the aggregation function. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> df_native = pd.DataFrame({"a": [1, 2], "b": [5, 10]}) + >>> nw.from_native(df_native).select(nw.max("a", "b")) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 2 10 | + └──────────────────┘ + """ + return col(*columns).max() + + +def _expr_with_horizontal_op(name: str, *exprs: IntoExpr, **kwargs: Any) -> Expr: + if not exprs: + msg = f"At least one expression must be passed to `{name}`" + raise ValueError(msg) + return Expr( + ExprNode( + ExprKind.ELEMENTWISE, name, exprs=exprs, **kwargs, allow_multi_output=True + ) + ) + + +def corr(a: IntoExpr, b: IntoExpr, method: CorrelationMethod = "pearson") -> Expr: + """Compute the Pearson's or Spearman rank correlation between two columns. + + Arguments: + a: Column name or Expression + b: Column name or Expression + method: Correlation method ('pearson' or 'spearman') + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> df_native = pl.DataFrame({"a": [1, 2, 3], "b": [0, 3, 2]}) + >>> nw.from_native(df_native).select( + ... pearson=nw.corr("a", "b", method="pearson"), + ... spearman=nw.corr("a", "b", method="spearman"), + ... ) + ┌───────────────────────┐ + | Narwhals DataFrame | + |-----------------------| + |shape: (1, 2) | + |┌──────────┬──────────┐| + |│ pearson ┆ spearman │| + |│ --- ┆ --- │| + |│ f64 ┆ f64 │| + |╞══════════╪══════════╡| + |│ 0.654654 ┆ 0.5 │| + |└──────────┴──────────┘| + └───────────────────────┘ + """ + return Expr(ExprNode(ExprKind.AGGREGATION, "corr", exprs=(a, b), method=method)) + + +def sum_horizontal(*exprs: IntoExpr | Iterable[IntoExpr]) -> Expr: + """Sum all values horizontally across columns. + + Warning: + Unlike Polars, we support horizontal sum over numeric columns only. + + Arguments: + exprs: Name(s) of the columns to use in the aggregation function. Accepts + expression input. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> df_native = pl.DataFrame({"a": [1, 2, 3], "b": [5, 10, None]}) + >>> nw.from_native(df_native).with_columns(sum=nw.sum_horizontal("a", "b")) + ┌────────────────────┐ + | Narwhals DataFrame | + |--------------------| + |shape: (3, 3) | + |┌─────┬──────┬─────┐| + |│ a ┆ b ┆ sum │| + |│ --- ┆ --- ┆ --- │| + |│ i64 ┆ i64 ┆ i64 │| + |╞═════╪══════╪═════╡| + |│ 1 ┆ 5 ┆ 6 │| + |│ 2 ┆ 10 ┆ 12 │| + |│ 3 ┆ null ┆ 3 │| + |└─────┴──────┴─────┘| + └────────────────────┘ + """ + return _expr_with_horizontal_op("sum_horizontal", *flatten(exprs)) + + +def min_horizontal(*exprs: IntoExpr | Iterable[IntoExpr]) -> Expr: + """Get the minimum value horizontally across columns. + + Notes: + We support `min_horizontal` over numeric columns only. + + Arguments: + exprs: Name(s) of the columns to use in the aggregation function. Accepts + expression input. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> df_native = pa.table({"a": [1, 8, 3], "b": [4, 5, None]}) + >>> nw.from_native(df_native).with_columns(h_min=nw.min_horizontal("a", "b")) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | pyarrow.Table | + | a: int64 | + | b: int64 | + | h_min: int64 | + | ---- | + | a: [[1,8,3]] | + | b: [[4,5,null]] | + | h_min: [[1,5,3]] | + └──────────────────┘ + """ + return _expr_with_horizontal_op("min_horizontal", *flatten(exprs)) + + +def max_horizontal(*exprs: IntoExpr | Iterable[IntoExpr]) -> Expr: + """Get the maximum value horizontally across columns. + + Notes: + We support `max_horizontal` over numeric columns only. + + Arguments: + exprs: Name(s) of the columns to use in the aggregation function. Accepts + expression input. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> df_native = pl.DataFrame({"a": [1, 8, 3], "b": [4, 5, None]}) + >>> nw.from_native(df_native).with_columns(h_max=nw.max_horizontal("a", "b")) + ┌──────────────────────┐ + | Narwhals DataFrame | + |----------------------| + |shape: (3, 3) | + |┌─────┬──────┬───────┐| + |│ a ┆ b ┆ h_max │| + |│ --- ┆ --- ┆ --- │| + |│ i64 ┆ i64 ┆ i64 │| + |╞═════╪══════╪═══════╡| + |│ 1 ┆ 4 ┆ 4 │| + |│ 8 ┆ 5 ┆ 8 │| + |│ 3 ┆ null ┆ 3 │| + |└─────┴──────┴───────┘| + └──────────────────────┘ + """ + return _expr_with_horizontal_op("max_horizontal", *flatten(exprs)) + + +class When: + def __init__(self, *predicates: IntoExpr | Iterable[IntoExpr]) -> None: + self._predicate = all_horizontal(*flatten(predicates), ignore_nulls=False) + + def then(self, value: IntoExpr | NonNestedLiteral) -> Then: + return Then( + ExprNode( + ExprKind.ELEMENTWISE, + "when_then", + exprs=(self._predicate, value), + allow_multi_output=False, + ) + ) + + +class Then(Expr): + def otherwise(self, value: IntoExpr | NonNestedLiteral) -> Expr: + node = self._nodes[0] + return Expr( + ExprNode(ExprKind.ELEMENTWISE, "when_then", exprs=(*node.exprs, value)) + ) + + +def when(*predicates: IntoExpr | Iterable[IntoExpr]) -> When: + """Start a `when-then-otherwise` expression. + + Expression similar to an `if-else` statement in Python. Always initiated by a + `pl.when().then()`, and optionally followed by a + `.otherwise()` can be appended at the end. If not + appended, and the condition is not `True`, `None` will be returned. + + Info: + Chaining multiple `.when().then()` statements is currently + not supported. + See [Narwhals#668](https://github.com/narwhals-dev/narwhals/issues/668). + + Arguments: + predicates: Condition(s) that must be met in order to apply the subsequent + statement. Accepts one or more boolean expressions, which are implicitly + combined with `&`. String input is parsed as a column name. + + Returns: + A "when" object, which `.then` can be called on. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> data = {"a": [1, 2, 3], "b": [5, 10, 15]} + >>> df_native = pd.DataFrame(data) + >>> nw.from_native(df_native).with_columns( + ... nw.when(nw.col("a") < 3).then(5).otherwise(6).alias("a_when") + ... ) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b a_when | + | 0 1 5 5 | + | 1 2 10 5 | + | 2 3 15 6 | + └──────────────────┘ + """ + return When(*predicates) + + +def all_horizontal(*exprs: IntoExpr | Iterable[IntoExpr], ignore_nulls: bool) -> Expr: + r"""Compute the bitwise AND horizontally across columns. + + Arguments: + exprs: Name(s) of the columns to use in the aggregation function. Accepts + expression input. + ignore_nulls: Whether to ignore nulls: + + - If `True`, null values are ignored. If there are no elements, the result + is `True`. + - If `False`, Kleene logic is followed. Note that this is not allowed for + pandas with classical NumPy dtypes when null values are present. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> data = { + ... "a": [False, False, True, True, False, None], + ... "b": [False, True, True, None, None, None], + ... } + >>> df_native = pa.table(data) + >>> nw.from_native(df_native).select( + ... "a", "b", all=nw.all_horizontal("a", "b", ignore_nulls=False) + ... ) + ┌─────────────────────────────────────────┐ + | Narwhals DataFrame | + |-----------------------------------------| + |pyarrow.Table | + |a: bool | + |b: bool | + |all: bool | + |---- | + |a: [[false,false,true,true,false,null]] | + |b: [[false,true,true,null,null,null]] | + |all: [[false,false,true,null,false,null]]| + └─────────────────────────────────────────┘ + """ + return _expr_with_horizontal_op( + "all_horizontal", *flatten(exprs), ignore_nulls=ignore_nulls + ) + + +def lit(value: PythonLiteral, dtype: IntoDType | None = None) -> Expr: + """Return an expression representing a literal value. + + Arguments: + value: The value to use as literal. Can be a scalar value, list, tuple, or dict. + Lists and tuples are converted to `List` dtype, dicts to `Struct` dtype. + dtype: The data type of the literal value. If not provided, the data type will + be inferred by the native library. For empty lists/dicts, dtype must be + specified explicitly. + + Examples: + Scalar literals: + + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> df_nw = nw.from_native(pa.table({"a": [1, 2]})) + >>> df_nw.with_columns(nw.lit(3)) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | pyarrow.Table | + | a: int64 | + | literal: int64 | + | ---- | + | a: [[1,2]] | + | literal: [[3,3]] | + └──────────────────┘ + + List literals (creates a List column): + + >>> df_nw.with_columns(nw.lit([1, 2, 3]).alias("list_col")) + ┌─────────────────────────────┐ + | Narwhals DataFrame | + |-----------------------------| + |pyarrow.Table | + |a: int64 | + |list_col: list | + | child 0, item: int64 | + |---- | + |a: [[1,2]] | + |list_col: [[[1,2,3],[1,2,3]]]| + └─────────────────────────────┘ + + Dict literals (creates a Struct column): + + >>> df_nw.with_columns(nw.lit({"x": 1, "y": 2}).alias("struct_col")) + ┌──────────────────────────────────────┐ + | Narwhals DataFrame | + |--------------------------------------| + |pyarrow.Table | + |a: int64 | + |struct_col: struct| + | child 0, x: int64 | + | child 1, y: int64 | + |---- | + |a: [[1,2]] | + |struct_col: [ | + | -- is_valid: all not null | + | -- child 0 type: int64 | + |[1,1] | + | -- child 1 type: int64 | + |[2,2]] | + └──────────────────────────────────────┘ + """ + if is_numpy_array(value): + msg = ( + "numpy arrays are not supported as literal values. " + "Consider using `with_columns` to create a new column from the array." + ) + raise ValueError(msg) + if is_nested_literal(value): + if not value: + if not dtype: + msg = "Cannot infer dtype for empty nested structure. Please provide an explicit dtype parameter." + raise ValueError(msg) + elif isinstance(value, dict): + if any(is_nested_literal(v) for v in value.values()): + msg = "Nested structures with nested values are not supported." + raise NotImplementedError(msg) + elif is_nested_literal(value[0]): + msg = "Nested structures with nested values are not supported." + raise NotImplementedError(msg) + return Expr(ExprNode(ExprKind.LITERAL, "lit", value=value, dtype=dtype)) + + +def any_horizontal(*exprs: IntoExpr | Iterable[IntoExpr], ignore_nulls: bool) -> Expr: + r"""Compute the bitwise OR horizontally across columns. + + Arguments: + exprs: Name(s) of the columns to use in the aggregation function. Accepts + expression input. + ignore_nulls: Whether to ignore nulls: + + - If `True`, null values are ignored. If there are no elements, the result + is `False`. + - If `False`, Kleene logic is followed. Note that this is not allowed for + pandas with classical NumPy dtypes when null values are present. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> data = { + ... "a": [False, False, True, True, False, None], + ... "b": [False, True, True, None, None, None], + ... } + >>> df_native = pl.DataFrame(data) + >>> nw.from_native(df_native).select( + ... "a", "b", any=nw.any_horizontal("a", "b", ignore_nulls=False) + ... ) + ┌─────────────────────────┐ + | Narwhals DataFrame | + |-------------------------| + |shape: (6, 3) | + |┌───────┬───────┬───────┐| + |│ a ┆ b ┆ any │| + |│ --- ┆ --- ┆ --- │| + |│ bool ┆ bool ┆ bool │| + |╞═══════╪═══════╪═══════╡| + |│ false ┆ false ┆ false │| + |│ false ┆ true ┆ true │| + |│ true ┆ true ┆ true │| + |│ true ┆ null ┆ true │| + |│ false ┆ null ┆ null │| + |│ null ┆ null ┆ null │| + |└───────┴───────┴───────┘| + └─────────────────────────┘ + """ + return _expr_with_horizontal_op( + "any_horizontal", *flatten(exprs), ignore_nulls=ignore_nulls + ) + + +def mean_horizontal(*exprs: IntoExpr | Iterable[IntoExpr]) -> Expr: + """Compute the mean of all values horizontally across columns. + + Arguments: + exprs: Name(s) of the columns to use in the aggregation function. Accepts + expression input. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> data = {"a": [1, 8, 3], "b": [4, 5, None], "c": ["x", "y", "z"]} + >>> df_native = pa.table(data) + + We define a dataframe-agnostic function that computes the horizontal mean of "a" + and "b" columns: + + >>> nw.from_native(df_native).select(nw.mean_horizontal("a", "b")) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | pyarrow.Table | + | a: double | + | ---- | + | a: [[2.5,6.5,3]] | + └──────────────────┘ + """ + return _expr_with_horizontal_op("mean_horizontal", *flatten(exprs)) + + +def concat_str( + exprs: IntoExpr | Iterable[IntoExpr], + *more_exprs: IntoExpr, + separator: str = "", + ignore_nulls: bool = False, +) -> Expr: + r"""Horizontally concatenate columns into a single string column. + + Arguments: + exprs: Columns to concatenate into a single string column. Accepts expression + input. Strings are parsed as column names, other non-expression inputs are + parsed as literals. Non-`String` columns are cast to `String`. + *more_exprs: Additional columns to concatenate into a single string column, + specified as positional arguments. + separator: String that will be used to separate the values of each column. + ignore_nulls: Ignore null values (default is `False`). + If set to `False`, null values will be propagated and if the row contains any + null values, the output is null. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> data = { + ... "a": [1, 2, 3], + ... "b": ["dogs", "cats", None], + ... "c": ["play", "swim", "walk"], + ... } + >>> df_native = pd.DataFrame(data) + >>> ( + ... nw.from_native(df_native).select( + ... nw.concat_str( + ... [nw.col("a") * 2, nw.col("b"), nw.col("c")], separator=" " + ... ).alias("full_sentence") + ... ) + ... ) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | full_sentence | + | 0 2 dogs play | + | 1 4 cats swim | + | 2 NaN | + └──────────────────┘ + """ + flat_exprs = flatten([*flatten([exprs]), *more_exprs]) + return _expr_with_horizontal_op( + "concat_str", *flat_exprs, separator=separator, ignore_nulls=ignore_nulls + ) + + +def coalesce( + exprs: IntoExpr | Iterable[IntoExpr], *more_exprs: IntoExpr | NonNestedLiteral +) -> Expr: + """Folds the columns from left to right, keeping the first non-null value. + + Arguments: + exprs: Columns to coalesce, must be a str, nw.Expr, or nw.Series + where strings are parsed as column names and both nw.Expr/nw.Series + are passed through as-is. Scalar values must be wrapped in `nw.lit`. + + *more_exprs: Additional columns to coalesce, specified as positional arguments. + + Raises: + TypeError: If any of the inputs are not a str, nw.Expr, or nw.Series. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> data = [ + ... (1, 5, None), + ... (None, 6, None), + ... (None, None, 9), + ... (4, 8, 10), + ... (None, None, None), + ... ] + >>> df = pl.DataFrame(data, schema=["a", "b", "c"], orient="row") + >>> nw.from_native(df).select(nw.coalesce("a", "b", "c", nw.lit(-1))) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | shape: (5, 1) | + | ┌─────┐ | + | │ a │ | + | │ --- │ | + | │ i64 │ | + | ╞═════╡ | + | │ 1 │ | + | │ 6 │ | + | │ 9 │ | + | │ 4 │ | + | │ -1 │ | + | └─────┘ | + └──────────────────┘ + """ + flat_exprs = flatten([*flatten([exprs]), *more_exprs]) + + non_exprs = [ + expr + for expr in flat_exprs + if not (isinstance(expr, str) or is_expr(expr) or is_series(expr)) + ] + if non_exprs: + msg = ( + f"All arguments to `coalesce` must be of type {str!r}, Expr, or Series." + "\nGot the following invalid arguments (type, value):" + f"\n {', '.join(repr((type(e), e)) for e in non_exprs)}" + ) + raise TypeError(msg) + + return Expr( + ExprNode( + ExprKind.ELEMENTWISE, "coalesce", exprs=flat_exprs, allow_multi_output=True + ) + ) + + +def format(f_string: str, *args: IntoExpr) -> Expr: + """Format expressions as a string. + + Arguments: + f_string: A string that with placeholders. + args: Expression(s) that fill the placeholders. + + Examples: + >>> import duckdb + >>> import narwhals as nw + >>> rel = duckdb.sql("select * from values ('a', 1), ('b', 2), ('c', 3) df(a, b)") + >>> df = nw.from_native(rel) + >>> df.with_columns(formatted=nw.format("foo_{}_bar_{}", nw.col("a"), "b")) + ┌─────────────────────────────────┐ + | Narwhals LazyFrame | + |---------------------------------| + |┌─────────┬───────┬─────────────┐| + |│ a │ b │ formatted │| + |│ varchar │ int32 │ varchar │| + |├─────────┼───────┼─────────────┤| + |│ a │ 1 │ foo_a_bar_1 │| + |│ b │ 2 │ foo_b_bar_2 │| + |│ c │ 3 │ foo_c_bar_3 │| + |└─────────┴───────┴─────────────┘| + └─────────────────────────────────┘ + """ + if (n_placeholders := f_string.count("{}")) != len(args): + msg = f"number of placeholders should equal the number of arguments. Expected {n_placeholders} arguments, got {len(args)}." + raise ValueError(msg) + + exprs = [] + it = iter(args) + for i, s in enumerate(f_string.split("{}")): + if i > 0: + exprs.append(next(it)) + if len(s) > 0: + exprs.append(lit(s)) + return concat_str(exprs, separator="") diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/group_by.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/group_by.py new file mode 100644 index 0000000000000000000000000000000000000000..65b9a9b48b1d0f95dc81da94148e34bcb28cd8b8 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/group_by.py @@ -0,0 +1,170 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Any, Generic, TypeVar + +from narwhals._expression_parsing import is_scalar_like +from narwhals._utils import tupleify +from narwhals.exceptions import InvalidOperationError +from narwhals.typing import DataFrameT + +if TYPE_CHECKING: + from collections.abc import Iterable, Iterator, Sequence + + from narwhals._compliant.typing import CompliantExprAny + from narwhals.dataframe import LazyFrame + from narwhals.expr import Expr + +LazyFrameT = TypeVar("LazyFrameT", bound="LazyFrame[Any]") + + +class GroupBy(Generic[DataFrameT]): + def __init__( + self, + df: DataFrameT, + keys: Sequence[str] | Sequence[CompliantExprAny], + /, + *, + drop_null_keys: bool, + ) -> None: + self._df: DataFrameT = df + self._keys = keys + self._grouped = self._df._compliant_frame.group_by( + self._keys, drop_null_keys=drop_null_keys + ) + + def agg(self, *aggs: Expr | Iterable[Expr], **named_aggs: Expr) -> DataFrameT: + """Compute aggregations for each group of a group by operation. + + Arguments: + aggs: Aggregations to compute for each group of the group by operation, + specified as positional arguments. + named_aggs: Additional aggregations, specified as keyword arguments. + + Examples: + Group by one column or by multiple columns and call `agg` to compute + the grouped sum of another column. + + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame( + ... { + ... "a": ["a", "b", "a", "b", "c"], + ... "b": [1, 2, 1, 3, 3], + ... "c": [5, 4, 3, 2, 1], + ... } + ... ) + >>> df = nw.from_native(df_native) + >>> + >>> df.group_by("a").agg(nw.col("b").sum()).sort("a") + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | a b | + | 0 a 2 | + | 1 b 5 | + | 2 c 3 | + └──────────────────┘ + >>> + >>> df.group_by("a", "b").agg(nw.col("c").sum()).sort("a", "b").to_native() + a b c + 0 a 1 8 + 1 b 2 4 + 2 b 3 2 + 3 c 3 1 + """ + compliant_aggs = self._df._flatten_and_extract(*aggs, **named_aggs) + if not all(is_scalar_like(x) for x in compliant_aggs): + msg = ( + "Found expression which does not aggregate.\n\n" + "All expressions passed to GroupBy.agg must aggregate.\n" + "For example, `df.group_by('a').agg(nw.col('b').sum())` is valid,\n" + "but `df.group_by('a').agg(nw.col('b'))` is not." + ) + raise InvalidOperationError(msg) + return self._df._with_compliant(self._grouped.agg(*compliant_aggs)) + + def __iter__(self) -> Iterator[tuple[Any, DataFrameT]]: + yield from ( + (tupleify(key), self._df._with_compliant(df)) + for (key, df) in self._grouped.__iter__() + ) + + +class LazyGroupBy(Generic[LazyFrameT]): + def __init__( + self, + df: LazyFrameT, + keys: Sequence[str] | Sequence[CompliantExprAny], + /, + *, + drop_null_keys: bool, + ) -> None: + self._df: LazyFrameT = df + self._keys = keys + self._grouped = self._df._compliant_frame.group_by( + self._keys, drop_null_keys=drop_null_keys + ) + + def agg(self, *aggs: Expr | Iterable[Expr], **named_aggs: Expr) -> LazyFrameT: + """Compute aggregations for each group of a group by operation. + + Arguments: + aggs: Aggregations to compute for each group of the group by operation, + specified as positional arguments. + named_aggs: Additional aggregations, specified as keyword arguments. + + Examples: + Group by one column or by multiple columns and call `agg` to compute + the grouped sum of another column. + + >>> import polars as pl + >>> import narwhals as nw + >>> from narwhals.typing import IntoFrameT + >>> lf_native = pl.LazyFrame( + ... { + ... "a": ["a", "b", "a", "b", "c"], + ... "b": [1, 2, 1, 3, 3], + ... "c": [5, 4, 3, 2, 1], + ... } + ... ) + >>> lf = nw.from_native(lf_native) + >>> + >>> nw.to_native(lf.group_by("a").agg(nw.col("b").sum()).sort("a")).collect() + shape: (3, 2) + ┌─────┬─────┐ + │ a ┆ b │ + │ --- ┆ --- │ + │ str ┆ i64 │ + ╞═════╪═════╡ + │ a ┆ 2 │ + │ b ┆ 5 │ + │ c ┆ 3 │ + └─────┴─────┘ + >>> + >>> lf.group_by("a", "b").agg(nw.sum("c")).sort("a", "b").collect() + ┌───────────────────┐ + |Narwhals DataFrame | + |-------------------| + |shape: (4, 3) | + |┌─────┬─────┬─────┐| + |│ a ┆ b ┆ c │| + |│ --- ┆ --- ┆ --- │| + |│ str ┆ i64 ┆ i64 │| + |╞═════╪═════╪═════╡| + |│ a ┆ 1 ┆ 8 │| + |│ b ┆ 2 ┆ 4 │| + |│ b ┆ 3 ┆ 2 │| + |│ c ┆ 3 ┆ 1 │| + |└─────┴─────┴─────┘| + └───────────────────┘ + """ + compliant_aggs = self._df._flatten_and_extract(*aggs, **named_aggs) + if not all(is_scalar_like(x) for x in compliant_aggs): + msg = ( + "Found expression which does not aggregate.\n\n" + "All expressions passed to GroupBy.agg must aggregate.\n" + "For example, `df.group_by('a').agg(nw.col('b').sum())` is valid,\n" + "but `df.group_by('a').agg(nw.col('b'))` is not." + ) + raise InvalidOperationError(msg) + return self._df._with_compliant(self._grouped.agg(*compliant_aggs)) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/plugins.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/plugins.py new file mode 100644 index 0000000000000000000000000000000000000000..982f9fe986abcf8fa665c3a6a9e3f91d73917c80 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/plugins.py @@ -0,0 +1,120 @@ +from __future__ import annotations + +import sys +from functools import cache +from typing import TYPE_CHECKING, Any, Protocol, cast + +from narwhals._compliant import CompliantNamespace +from narwhals._typing_compat import TypeVar + +if TYPE_CHECKING: + from collections.abc import Iterator + from importlib.metadata import EntryPoints + + from typing_extensions import LiteralString, TypeAlias + + from narwhals._compliant.typing import ( + CompliantDataFrameAny, + CompliantFrameAny, + CompliantLazyFrameAny, + CompliantSeriesAny, + ) + from narwhals.utils import Version + + +__all__ = ["Plugin", "from_native"] + +CompliantAny: TypeAlias = ( + "CompliantDataFrameAny | CompliantLazyFrameAny | CompliantSeriesAny" +) +"""A statically-unknown, Compliant object originating from a plugin.""" + +FrameT = TypeVar( + "FrameT", + bound="CompliantFrameAny", + default="CompliantDataFrameAny | CompliantLazyFrameAny", +) +FromNativeR_co = TypeVar( + "FromNativeR_co", bound=CompliantAny, covariant=True, default=CompliantAny +) + + +@cache +def _discover_entrypoints() -> EntryPoints: + from importlib.metadata import entry_points as eps + + group = "narwhals.plugins" + if sys.version_info < (3, 10): + return cast("EntryPoints", eps().get(group, ())) + return eps(group=group) + + +class PluginNamespace(CompliantNamespace[FrameT, Any], Protocol[FrameT, FromNativeR_co]): + def from_native(self, data: Any, /) -> FromNativeR_co: ... + + +class Plugin(Protocol[FrameT, FromNativeR_co]): + @property + def NATIVE_PACKAGE(self) -> LiteralString: ... # noqa: N802 + + def __narwhals_namespace__( + self, version: Version + ) -> PluginNamespace[FrameT, FromNativeR_co]: ... + def is_native(self, native_object: object, /) -> bool: ... + + +@cache +def _might_be(cls: type, type_: str) -> bool: # pragma: no cover + try: + return any(type_ in o.__module__.split(".") for o in cls.mro()) + except TypeError: + return False + + +def _is_native_plugin(native_object: Any, plugin: Plugin) -> bool: + pkg = plugin.NATIVE_PACKAGE + return ( + sys.modules.get(pkg) is not None + and _might_be(type(native_object), pkg) # type: ignore[arg-type] + and plugin.is_native(native_object) + ) + + +def _iter_from_native(native_object: Any, version: Version) -> Iterator[CompliantAny]: + for entry_point in _discover_entrypoints(): + plugin: Plugin = entry_point.load() + if _is_native_plugin(native_object, plugin): + compliant_namespace = plugin.__narwhals_namespace__(version=version) + yield compliant_namespace.from_native(native_object) + + +def from_native(native_object: Any, version: Version) -> CompliantAny | None: + """Attempt to convert `native_object` to a Compliant object, using any available plugin(s). + + Arguments: + native_object: Raw object from user. + version: Narwhals API version. + + Returns: + If the following conditions are met + - at least 1 plugin is installed + - at least 1 installed plugin supports `type(native_object)` + + Then for the **first matching plugin**, the result of the call below. + This *should* be an object accepted by a Narwhals Dataframe, Lazyframe, or Series: + + plugin: Plugin + plugin.__narwhals_namespace__(version).from_native(native_object) + + In all other cases, `None` is returned instead. + """ + return next(_iter_from_native(native_object, version), None) + + +def _show_suggestions(native_object_type: type) -> str | None: + if _might_be(native_object_type, "daft"): # pragma: no cover + return ( + "Hint: it looks like you passed a `daft.DataFrame` but don't have `narwhals-daft` installed.\n" + "Please refer to https://github.com/narwhals-dev/narwhals-daft for installation instructions." + ) + return None diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/py.typed b/.venv_haddock/lib/python3.12/site-packages/narwhals/py.typed new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/schema.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/schema.py new file mode 100644 index 0000000000000000000000000000000000000000..b459be68fa4491e25e18a7499c02ecb4c74331f7 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/schema.py @@ -0,0 +1,365 @@ +"""Schema. + +Adapted from Polars implementation at: +https://github.com/pola-rs/polars/blob/main/py-polars/polars/schema.py. +""" + +from __future__ import annotations + +from collections import OrderedDict +from collections.abc import Mapping +from functools import partial +from typing import TYPE_CHECKING, cast + +from narwhals._utils import Implementation, Version, qualified_type_name, zip_strict +from narwhals.dependencies import ( + get_cudf, + is_cudf_dtype, + is_pandas_like_dtype, + is_polars_data_type, + is_polars_schema, + is_pyarrow_data_type, + is_pyarrow_schema, +) + +if TYPE_CHECKING: + from collections.abc import Iterable + from typing import Any, ClassVar + + import polars as pl + import pyarrow as pa + from typing_extensions import Self + + from narwhals.dtypes import DType + from narwhals.typing import ( + DTypeBackend, + IntoArrowSchema, + IntoPandasSchema, + IntoPolarsSchema, + ) + + +__all__ = ["Schema"] + + +class Schema(OrderedDict[str, "DType"]): + """Ordered mapping of column names to their data type. + + Arguments: + schema: The schema definition given by column names and their associated + *instantiated* Narwhals data type. Accepts a mapping or an iterable of tuples. + + Examples: + Define a schema by passing *instantiated* data types. + + >>> import narwhals as nw + >>> schema = nw.Schema({"foo": nw.Int8(), "bar": nw.String()}) + >>> schema + Schema({'foo': Int8, 'bar': String}) + + Access the data type associated with a specific column name. + + >>> schema["foo"] + Int8 + + Access various schema properties using the `names`, `dtypes`, and `len` methods. + + >>> schema.names() + ['foo', 'bar'] + >>> schema.dtypes() + [Int8, String] + >>> schema.len() + 2 + """ + + _version: ClassVar[Version] = Version.MAIN + + def __init__( + self, schema: Mapping[str, DType] | Iterable[tuple[str, DType]] | None = None + ) -> None: + schema = schema or {} + super().__init__(schema) + + def names(self) -> list[str]: + """Get the column names of the schema.""" + return list(self.keys()) + + def dtypes(self) -> list[DType]: + """Get the data types of the schema.""" + return list(self.values()) + + def len(self) -> int: + """Get the number of columns in the schema.""" + return len(self) + + @classmethod + def from_arrow(cls, schema: IntoArrowSchema, /) -> Self: + """Construct a Schema from a pyarrow Schema. + + Arguments: + schema: A pyarrow Schema or mapping of column names to pyarrow data types. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> mapping = { + ... "a": pa.timestamp("us", "UTC"), + ... "b": pa.date32(), + ... "c": pa.string(), + ... "d": pa.uint8(), + ... } + >>> native = pa.schema(mapping) + >>> + >>> nw.Schema.from_arrow(native) + Schema({'a': Datetime(time_unit='us', time_zone='UTC'), 'b': Date, 'c': String, 'd': UInt8}) + + >>> nw.Schema.from_arrow(mapping) == nw.Schema.from_arrow(native) + True + """ + if isinstance(schema, Mapping): + if not schema: + return cls() + import pyarrow as pa # ignore-banned-import + + schema = pa.schema(schema) + from narwhals._arrow.utils import native_to_narwhals_dtype + + return cls( + (field.name, native_to_narwhals_dtype(field.type, cls._version)) + for field in schema + ) + + @classmethod + def from_pandas_like(cls, schema: IntoPandasSchema, /) -> Self: + """Construct a Schema from a pandas-like schema representation. + + Arguments: + schema: A mapping of column names to pandas-like data types. + + Examples: + >>> import numpy as np + >>> import pandas as pd + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> data = {"a": [1], "b": ["a"], "c": [False], "d": [9.2]} + >>> native = pd.DataFrame(data).convert_dtypes().dtypes.to_dict() + >>> + >>> nw.Schema.from_pandas_like(native) + Schema({'a': Int64, 'b': String, 'c': Boolean, 'd': Float64}) + >>> + >>> mapping = { + ... "a": pd.DatetimeTZDtype("us", "UTC"), + ... "b": pd.ArrowDtype(pa.date32()), + ... "c": pd.StringDtype("python"), + ... "d": np.dtype("uint8"), + ... } + >>> + >>> nw.Schema.from_pandas_like(mapping) + Schema({'a': Datetime(time_unit='us', time_zone='UTC'), 'b': Date, 'c': String, 'd': UInt8}) + """ + if not schema: + return cls() + impl = ( + Implementation.CUDF + if get_cudf() and any(is_cudf_dtype(dtype) for dtype in schema.values()) + else Implementation.PANDAS + ) + return cls._from_pandas_like(schema, impl) + + @classmethod + def from_native( + cls, schema: IntoArrowSchema | IntoPolarsSchema | IntoPandasSchema, / + ) -> Self: + """Construct a Schema from a native schema representation. + + Arguments: + schema: A native schema object, or mapping of column names to + *instantiated* native data types. + + Examples: + >>> import datetime as dt + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> data = {"a": [1], "b": ["a"], "c": [dt.time(1, 2, 3)], "d": [[2]]} + >>> native = pa.table(data).schema + >>> + >>> nw.Schema.from_native(native) + Schema({'a': Int64, 'b': String, 'c': Time, 'd': List(Int64)}) + """ + if is_pyarrow_schema(schema): + return cls.from_arrow(schema) + if is_polars_schema(schema): + return cls.from_polars(schema) + if isinstance(schema, Mapping): + return cls._from_native_mapping(schema) if schema else cls() + msg = ( + f"Expected an arrow, polars, or pandas schema, but got " + f"{qualified_type_name(schema)!r}\n\n{schema!r}" + ) + raise TypeError(msg) + + @classmethod + def from_polars(cls, schema: IntoPolarsSchema, /) -> Self: + """Construct a Schema from a polars Schema. + + Arguments: + schema: A polars Schema or mapping of column names to *instantiated* + polars data types. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> mapping = { + ... "a": pl.Datetime(time_zone="UTC"), + ... "b": pl.Date(), + ... "c": pl.String(), + ... "d": pl.UInt8(), + ... } + >>> native = pl.Schema(mapping) + >>> + >>> nw.Schema.from_polars(native) + Schema({'a': Datetime(time_unit='us', time_zone='UTC'), 'b': Date, 'c': String, 'd': UInt8}) + + >>> nw.Schema.from_polars(mapping) == nw.Schema.from_polars(native) + True + """ + if not schema: + return cls() + from narwhals._polars.utils import native_to_narwhals_dtype + + return cls( + (name, native_to_narwhals_dtype(dtype, cls._version)) + for name, dtype in schema.items() + ) + + def to_arrow(self) -> pa.Schema: + """Convert Schema to a pyarrow Schema. + + Examples: + >>> import narwhals as nw + >>> schema = nw.Schema({"a": nw.Int64(), "b": nw.Datetime("ns")}) + >>> schema.to_arrow() + a: int64 + b: timestamp[ns] + """ + import pyarrow as pa # ignore-banned-import + + from narwhals._arrow.utils import narwhals_to_native_dtype + + return pa.schema( + (name, narwhals_to_native_dtype(dtype, self._version)) + for name, dtype in self.items() + ) + + def to_pandas( + self, dtype_backend: DTypeBackend | Iterable[DTypeBackend] = None + ) -> dict[str, Any]: + """Convert Schema to an ordered mapping of column names to their pandas data type. + + Arguments: + dtype_backend: Backend(s) used for the native types. When providing more than + one, the length of the iterable must be equal to the length of the schema. + + Examples: + >>> import narwhals as nw + >>> schema = nw.Schema({"a": nw.Int64(), "b": nw.Datetime("ns")}) + >>> schema.to_pandas() + {'a': 'int64', 'b': 'datetime64[ns]'} + + >>> schema.to_pandas("pyarrow") + {'a': 'Int64[pyarrow]', 'b': 'timestamp[ns][pyarrow]'} + """ + from narwhals._pandas_like.utils import narwhals_to_native_dtype + + to_native_dtype = partial( + narwhals_to_native_dtype, + implementation=Implementation.PANDAS, + version=self._version, + ) + if dtype_backend is None or isinstance(dtype_backend, str): + return { + name: to_native_dtype(dtype=dtype, dtype_backend=dtype_backend) + for name, dtype in self.items() + } + backends = tuple(dtype_backend) + if len(backends) != len(self): + from itertools import chain, islice, repeat + + n_user, n_actual = len(backends), len(self) + suggestion = tuple( + islice(chain.from_iterable(islice(repeat(backends), n_actual)), n_actual) + ) + msg = ( + f"Provided {n_user!r} `dtype_backend`(s), but schema contains {n_actual!r} field(s).\n" + "Hint: instead of\n" + f" schema.to_pandas({backends})\n" + "you may want to use\n" + f" schema.to_pandas({backends[0]})\n" + f"or\n" + f" schema.to_pandas({suggestion})" + ) + raise ValueError(msg) + return { + name: to_native_dtype(dtype=dtype, dtype_backend=backend) + for name, dtype, backend in zip_strict(self.keys(), self.values(), backends) + } + + def to_polars(self) -> pl.Schema: + """Convert Schema to a polars Schema. + + Examples: + >>> import narwhals as nw + >>> schema = nw.Schema({"a": nw.Int64(), "b": nw.Datetime("ns")}) + >>> schema.to_polars() + Schema({'a': Int64, 'b': Datetime(time_unit='ns', time_zone=None)}) + """ + import polars as pl # ignore-banned-import + + from narwhals._polars.utils import narwhals_to_native_dtype + + pl_version = Implementation.POLARS._backend_version() + schema = ( + (name, narwhals_to_native_dtype(dtype, self._version)) + for name, dtype in self.items() + ) + return ( + pl.Schema(schema) + if pl_version >= (1, 0, 0) + else cast("pl.Schema", dict(schema)) + ) + + @classmethod + def _from_native_mapping( + cls, + native: Mapping[str, pa.DataType] | Mapping[str, pl.DataType] | IntoPandasSchema, + /, + ) -> Self: + first_item = next(iter(native.items())) + first_key, first_dtype = first_item + if is_polars_data_type(first_dtype): + return cls.from_polars(cast("IntoPolarsSchema", native)) + if is_pandas_like_dtype(first_dtype): + return cls.from_pandas_like(cast("IntoPandasSchema", native)) + if is_pyarrow_data_type(first_dtype): + return cls.from_arrow(cast("IntoArrowSchema", native)) + msg = ( + f"Expected an arrow, polars, or pandas dtype, but found " + f"`{first_key}: {qualified_type_name(first_dtype)}`\n\n{native!r}" + ) + raise TypeError(msg) + + @classmethod + def _from_pandas_like( + cls, schema: IntoPandasSchema, implementation: Implementation, / + ) -> Self: + from narwhals._pandas_like.utils import native_to_narwhals_dtype + + impl = implementation + return cls( + (name, native_to_narwhals_dtype(dtype, cls._version, impl, allow_object=True)) + for name, dtype in schema.items() + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/selectors.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/selectors.py new file mode 100644 index 0000000000000000000000000000000000000000..67c7e3abfc8258ffcdf10672a20a728d17fdf405 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/selectors.py @@ -0,0 +1,322 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Any, NoReturn + +from narwhals._expression_parsing import ExprKind, ExprNode +from narwhals._utils import flatten +from narwhals.expr import Expr + +if TYPE_CHECKING: + from collections.abc import Iterable + from datetime import timezone + + from narwhals.dtypes import DType + from narwhals.typing import TimeUnit + + +class Selector(Expr): + def _to_expr(self) -> Expr: + return Expr(*self._nodes) + + def __add__(self, other: Any) -> Expr: # type: ignore[override] + if isinstance(other, Selector): + msg = "unsupported operand type(s) for op: ('Selector' + 'Selector')" + raise TypeError(msg) + return self._to_expr()._append_node( + ExprNode(ExprKind.ELEMENTWISE, "__add__", exprs=(other,), str_as_lit=True) + ) + + def __or__(self, other: Any) -> Expr: # type: ignore[override] + if isinstance(other, Selector): + return self._append_node( + ExprNode( + ExprKind.ELEMENTWISE, + "__or__", + exprs=(other,), + str_as_lit=True, + allow_multi_output=True, + ) + ) + return self._to_expr()._append_node( + ExprNode(ExprKind.ELEMENTWISE, "__or__", exprs=(other,), str_as_lit=True) + ) + + def __and__(self, other: Any) -> Expr: # type: ignore[override] + if isinstance(other, Selector): + return self._append_node( + ExprNode( + ExprKind.ELEMENTWISE, + "__and__", + exprs=(other,), + str_as_lit=True, + allow_multi_output=True, + ) + ) + return self._to_expr()._append_node( + ExprNode(ExprKind.ELEMENTWISE, "__and__", exprs=(other,), str_as_lit=True) + ) + + def __rsub__(self, other: Any) -> NoReturn: + raise NotImplementedError + + def __rand__(self, other: Any) -> NoReturn: + raise NotImplementedError + + def __ror__(self, other: Any) -> NoReturn: + raise NotImplementedError + + +def by_dtype(*dtypes: DType | type[DType] | Iterable[DType | type[DType]]) -> Selector: + """Select columns based on their dtype. + + Arguments: + dtypes: one or data types to select + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> import narwhals.selectors as ncs + >>> df_native = pa.table({"a": [1, 2], "b": ["x", "y"], "c": [4.1, 2.3]}) + >>> df = nw.from_native(df_native) + + Let's select int64 and float64 dtypes and multiply each value by 2: + + >>> df.select(ncs.by_dtype(nw.Int64, nw.Float64) * 2).to_native() + pyarrow.Table + a: int64 + c: double + ---- + a: [[2,4]] + c: [[8.2,4.6]] + """ + flattened = flatten(dtypes) + return Selector(ExprNode(ExprKind.SELECTOR, "selectors.by_dtype", dtypes=flattened)) + + +def matches(pattern: str) -> Selector: + """Select all columns that match the given regex pattern. + + Arguments: + pattern: A valid regular expression pattern. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> import narwhals.selectors as ncs + >>> df_native = pd.DataFrame( + ... {"bar": [123, 456], "baz": [2.0, 5.5], "zap": [0, 1]} + ... ) + >>> df = nw.from_native(df_native) + + Let's select column names containing an 'a', preceded by a character that is not 'z': + + >>> df.select(ncs.matches("[^z]a")).to_native() + bar baz + 0 123 2.0 + 1 456 5.5 + """ + return Selector(ExprNode(ExprKind.SELECTOR, "selectors.matches", pattern=pattern)) + + +def numeric() -> Selector: + """Select numeric columns. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> import narwhals.selectors as ncs + >>> df_native = pl.DataFrame({"a": [1, 2], "b": ["x", "y"], "c": [4.1, 2.3]}) + >>> df = nw.from_native(df_native) + + Let's select numeric dtypes and multiply each value by 2: + + >>> df.select(ncs.numeric() * 2).to_native() + shape: (2, 2) + ┌─────┬─────┐ + │ a ┆ c │ + │ --- ┆ --- │ + │ i64 ┆ f64 │ + ╞═════╪═════╡ + │ 2 ┆ 8.2 │ + │ 4 ┆ 4.6 │ + └─────┴─────┘ + """ + return Selector(ExprNode(ExprKind.SELECTOR, "selectors.numeric")) + + +def boolean() -> Selector: + """Select boolean columns. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> import narwhals.selectors as ncs + >>> df_native = pl.DataFrame({"a": [1, 2], "b": ["x", "y"], "c": [False, True]}) + >>> df = nw.from_native(df_native) + + Let's select boolean dtypes: + + >>> df.select(ncs.boolean()) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + | shape: (2, 1) | + | ┌───────┐ | + | │ c │ | + | │ --- │ | + | │ bool │ | + | ╞═══════╡ | + | │ false │ | + | │ true │ | + | └───────┘ | + └──────────────────┘ + """ + return Selector(ExprNode(ExprKind.SELECTOR, "selectors.boolean")) + + +def string() -> Selector: + """Select string columns. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> import narwhals.selectors as ncs + >>> df_native = pl.DataFrame({"a": [1, 2], "b": ["x", "y"], "c": [False, True]}) + >>> df = nw.from_native(df_native) + + Let's select string dtypes: + + >>> df.select(ncs.string()).to_native() + shape: (2, 1) + ┌─────┐ + │ b │ + │ --- │ + │ str │ + ╞═════╡ + │ x │ + │ y │ + └─────┘ + """ + return Selector(ExprNode(ExprKind.SELECTOR, "selectors.string")) + + +def categorical() -> Selector: + """Select categorical columns. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> import narwhals.selectors as ncs + >>> df_native = pl.DataFrame({"a": [1, 2], "b": ["x", "y"], "c": [False, True]}) + + Let's convert column "b" to categorical, and then select categorical dtypes: + + >>> df = nw.from_native(df_native).with_columns( + ... b=nw.col("b").cast(nw.Categorical()) + ... ) + >>> df.select(ncs.categorical()).to_native() + shape: (2, 1) + ┌─────┐ + │ b │ + │ --- │ + │ cat │ + ╞═════╡ + │ x │ + │ y │ + └─────┘ + """ + return Selector(ExprNode(ExprKind.SELECTOR, "selectors.categorical")) + + +def all() -> Selector: + """Select all columns. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> import narwhals.selectors as ncs + >>> df_native = pd.DataFrame({"a": [1, 2], "b": ["x", "y"], "c": [False, True]}) + >>> df = nw.from_native(df_native) + + Let's select all dtypes: + + >>> df.select(ncs.all()).to_native() + a b c + 0 1 x False + 1 2 y True + """ + return Selector(ExprNode(ExprKind.SELECTOR, "selectors.all")) + + +def datetime( + time_unit: TimeUnit | Iterable[TimeUnit] | None = None, + time_zone: str | timezone | Iterable[str | timezone | None] | None = ("*", None), +) -> Selector: + """Select all datetime columns, optionally filtering by time unit/zone. + + Arguments: + time_unit: One (or more) of the allowed timeunit precision strings, "ms", "us", + "ns" and "s". Omit to select columns with any valid timeunit. + time_zone: Specify which timezone(s) to select + + * One or more timezone strings, as defined in zoneinfo (to see valid options + run `import zoneinfo; zoneinfo.available_timezones()` for a full list). + * Set `None` to select Datetime columns that do not have a timezone. + * Set `"*"` to select Datetime columns that have *any* timezone. + + Examples: + >>> from datetime import datetime, timezone + >>> import pyarrow as pa + >>> import narwhals as nw + >>> import narwhals.selectors as ncs + >>> + >>> utc_tz = timezone.utc + >>> data = { + ... "tstamp_utc": [ + ... datetime(2023, 4, 10, 12, 14, 16, 999000, tzinfo=utc_tz), + ... datetime(2025, 8, 25, 14, 18, 22, 666000, tzinfo=utc_tz), + ... ], + ... "tstamp": [ + ... datetime(2000, 11, 20, 18, 12, 16, 600000), + ... datetime(2020, 10, 30, 10, 20, 25, 123000), + ... ], + ... "numeric": [3.14, 6.28], + ... } + >>> df_native = pa.table(data) + >>> df_nw = nw.from_native(df_native) + >>> df_nw.select(ncs.datetime()).to_native() + pyarrow.Table + tstamp_utc: timestamp[us, tz=UTC] + tstamp: timestamp[us] + ---- + tstamp_utc: [[2023-04-10 12:14:16.999000Z,2025-08-25 14:18:22.666000Z]] + tstamp: [[2000-11-20 18:12:16.600000,2020-10-30 10:20:25.123000]] + + Select only datetime columns that have any time_zone specification: + + >>> df_nw.select(ncs.datetime(time_zone="*")).to_native() + pyarrow.Table + tstamp_utc: timestamp[us, tz=UTC] + ---- + tstamp_utc: [[2023-04-10 12:14:16.999000Z,2025-08-25 14:18:22.666000Z]] + """ + return Selector( + ExprNode( + ExprKind.SELECTOR, + "selectors.datetime", + time_unit=time_unit, + time_zone=time_zone, + ) + ) + + +__all__ = [ + "all", + "boolean", + "by_dtype", + "categorical", + "datetime", + "matches", + "numeric", + "string", +] diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/series.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/series.py new file mode 100644 index 0000000000000000000000000000000000000000..6acc47624568c34a641c09eb40dcf0120f696693 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/series.py @@ -0,0 +1,2950 @@ +from __future__ import annotations + +import math +from collections.abc import Iterable, Iterator, Mapping, Sequence +from functools import partial +from typing import ( + TYPE_CHECKING, + Any, + Callable, + ClassVar, + Generic, + Literal, + cast, + overload, +) + +from narwhals._expression_parsing import ExprKind, ExprNode +from narwhals._utils import ( + Implementation, + Version, + _Implementation, + _validate_rolling_arguments, + ensure_type, + generate_repr, + is_compliant_series, + is_eager_allowed, + is_index_selector, + no_default, + qualified_type_name, + supports_arrow_c_stream, + unstable, +) +from narwhals.dependencies import is_numpy_array, is_numpy_array_1d, is_numpy_scalar +from narwhals.dtypes import _validate_dtype, _validate_into_dtype +from narwhals.exceptions import ComputeError, InvalidOperationError +from narwhals.expr import Expr +from narwhals.functions import col +from narwhals.series_cat import SeriesCatNamespace +from narwhals.series_dt import SeriesDateTimeNamespace +from narwhals.series_list import SeriesListNamespace +from narwhals.series_str import SeriesStringNamespace +from narwhals.series_struct import SeriesStructNamespace +from narwhals.translate import to_native +from narwhals.typing import IntoSeriesT + +if TYPE_CHECKING: + from types import ModuleType + from typing import NoReturn + + import pandas as pd + import polars as pl + import pyarrow as pa + from typing_extensions import Self + + from narwhals._compliant import CompliantSeries + from narwhals._typing import EagerAllowed, IntoBackend, NoDefault + from narwhals.dataframe import DataFrame, MultiIndexSelector + from narwhals.dtypes import DType + from narwhals.typing import ( + ClosedInterval, + FillNullStrategy, + IntoDType, + ModeKeepStrategy, + NonNestedLiteral, + NumericLiteral, + PythonLiteral, + RankMethod, + RollingInterpolationMethod, + SingleIndexSelector, + TemporalLiteral, + _1DArray, + ) + + +class Series(Generic[IntoSeriesT]): + """Narwhals Series, backed by a native series. + + Warning: + This class is not meant to be instantiated directly - instead: + + - If the native object is a series from one of the supported backend (e.g. + pandas.Series, polars.Series, pyarrow.ChunkedArray), you can use + [`narwhals.from_native`][]: + ```py + narwhals.from_native(native_series, allow_series=True) + narwhals.from_native(native_series, series_only=True) + ``` + + - If the object is a generic sequence (e.g. a list or a tuple of values), you can + create a series via [`narwhals.new_series`][], e.g.: + ```py + narwhals.new_series(name="price", values=[10.5, 9.4, 1.2], backend="pandas") + ``` + """ + + _version: ClassVar[Version] = Version.MAIN + + @property + def _compliant(self) -> CompliantSeries[IntoSeriesT]: + return self._compliant_series + + @property + def _dataframe(self) -> type[DataFrame[Any]]: + from narwhals.dataframe import DataFrame + + return DataFrame + + def _to_expr(self) -> Expr: + return Expr( + ExprNode(ExprKind.SERIES, "_expr._from_series", series=self._compliant) + ) + + def __init__( + self, series: Any, *, level: Literal["full", "lazy", "interchange"] + ) -> None: + self._level: Literal["full", "lazy", "interchange"] = level + if is_compliant_series(series): + self._compliant_series: CompliantSeries[IntoSeriesT] = ( + series.__narwhals_series__() + ) + else: # pragma: no cover + msg = f"Expected Polars Series or an object which implements `__narwhals_series__`, got: {type(series)}." + raise AssertionError(msg) + + @classmethod + def from_numpy( + cls, + name: str, + values: _1DArray, + dtype: IntoDType | None = None, + *, + backend: IntoBackend[EagerAllowed], + ) -> Series[Any]: + """Construct a Series from a NumPy ndarray. + + Arguments: + name: Name of resulting Series. + values: One-dimensional data represented as a NumPy ndarray. + dtype: (Narwhals) dtype. If not provided, the native library + may auto-infer it from `values`. + backend: specifies which eager backend instantiate to. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + + Examples: + >>> import numpy as np + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> arr = np.arange(5, 10) + >>> nw.Series.from_numpy("arr", arr, dtype=nw.Int8, backend="polars") + ┌──────────────────┐ + | Narwhals Series | + |------------------| + |shape: (5,) | + |Series: 'arr' [i8]| + |[ | + | 5 | + | 6 | + | 7 | + | 8 | + | 9 | + |] | + └──────────────────┘ + """ + if not is_numpy_array_1d(values): + msg = "`from_numpy` only accepts 1D numpy arrays" + raise ValueError(msg) + if dtype: + _validate_into_dtype(dtype) + implementation = Implementation.from_backend(backend) + if is_eager_allowed(implementation): + ns = cls._version.namespace.from_backend(implementation).compliant + compliant = ns.from_numpy(values).alias(name) + if dtype: + return cls(compliant.cast(dtype), level="full") + return cls(compliant, level="full") + msg = ( # pragma: no cover + f"{implementation} support in Narwhals is lazy-only, but `Series.from_numpy` is an eager-only function.\n\n" + "Hint: you may want to use an eager backend and then call `.lazy`, e.g.:\n\n" + f" nw.Series.from_numpy(arr, backend='pyarrow').to_frame().lazy('{implementation}')" + ) + raise ValueError(msg) # pragma: no cover + + @classmethod + def from_iterable( + cls, + name: str, + values: Iterable[Any], + dtype: IntoDType | None = None, + *, + backend: IntoBackend[EagerAllowed], + ) -> Series[Any]: + """Construct a Series from an iterable. + + Arguments: + name: Name of resulting Series. + values: One-dimensional data represented as an iterable. + dtype: (Narwhals) dtype. If not provided, the native library + may auto-infer it from `values`. + backend: specifies which eager backend instantiate to. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> values = [4, 1, 3, 2] + >>> nw.Series.from_iterable("a", values, dtype=nw.UInt32, backend="pandas") + ┌──────────────────────┐ + | Narwhals Series | + |----------------------| + |0 4 | + |1 1 | + |2 3 | + |3 2 | + |Name: a, dtype: uint32| + └──────────────────────┘ + """ + if is_numpy_array(values): + return cls.from_numpy(name, values, dtype, backend=backend) + if dtype: + _validate_into_dtype(dtype) + if not isinstance(values, Iterable): + msg = f"Expected values to be an iterable, got: {qualified_type_name(values)!r}." + raise TypeError(msg) + implementation = Implementation.from_backend(backend) + if is_eager_allowed(implementation): + ns = cls._version.namespace.from_backend(implementation).compliant + compliant = ns._series.from_iterable( + values, context=ns, name=name, dtype=dtype + ) + return cls(compliant, level="full") + msg = ( + f"{implementation} support in Narwhals is lazy-only, but `Series.from_iterable` is an eager-only function.\n\n" + "Hint: you may want to use an eager backend and then call `.lazy`, e.g.:\n\n" + f" nw.Series.from_iterable('a', [1,2,3], backend='pyarrow').to_frame().lazy('{implementation}')" + ) + raise ValueError(msg) + + implementation: _Implementation = _Implementation() + """Return [`narwhals.Implementation`][] of native Series. + + This can be useful when you need to use special-casing for features outside of + Narwhals' scope - for example, when dealing with pandas' Period Dtype. + + Examples: + >>> import narwhals as nw + >>> import pandas as pd + >>> s_native = pd.Series([1, 2, 3]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.implementation + + >>> s.implementation.is_pandas() + True + >>> s.implementation.is_pandas_like() + True + >>> s.implementation.is_polars() + False + """ + + def __bool__(self) -> NoReturn: + msg = ( + "the truth value of a Series is ambiguous" + "\n\n" + "Here are some things you might want to try:\n" + "- instead of `if s`, use `if not s.is_empty()`\n" + "- instead of `s1 and s2`, use `s1 & s2`\n" + "- instead of `s1 or s2`, use `s1 | s2`\n" + "- instead of `s in [y, z]`, use `s.is_in([y, z])`\n" + ) + raise TypeError(msg) + + def __array__(self, dtype: Any = None, copy: bool | None = None) -> _1DArray: # noqa: FBT001 + return self._compliant_series.__array__(dtype=dtype, copy=copy) + + @overload + def __getitem__(self, idx: SingleIndexSelector) -> Any: ... + + @overload + def __getitem__(self, idx: MultiIndexSelector) -> Self: ... + + def __getitem__(self, idx: SingleIndexSelector | MultiIndexSelector) -> Any | Self: + """Retrieve elements from the object using integer indexing or slicing. + + Arguments: + idx: The index, slice, or sequence of indices to retrieve. + + - If `idx` is an integer, a single element is returned. + - If `idx` is a slice, a sequence of integers, or another Series + (with integer values) a subset of the Series is returned. + + Returns: + A single element if `idx` is an integer, else a subset of the Series. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 2, 3]]) + >>> nw.from_native(s_native, series_only=True)[0] + 1 + + >>> nw.from_native(s_native, series_only=True)[ + ... :2 + ... ].to_native() # doctest:+ELLIPSIS + + [ + [ + 1, + 2 + ] + ] + """ + if isinstance(idx, int) or ( + is_numpy_scalar(idx) and idx.dtype.kind in {"i", "u"} + ): + idx = int(idx) if not isinstance(idx, int) else idx + return self._compliant_series.item(idx) + + if isinstance(idx, self.to_native().__class__): + idx = self._with_compliant(self._compliant_series._with_native(idx)) + + if not is_index_selector(idx): + msg = ( + f"Unexpected type for `Series.__getitem__`: {type(idx)}.\n\n" + "Hints:\n" + "- use `s.item` to select a single item.\n" + "- Use `s[indices]` to select rows positionally.\n" + "- Use `s.filter(mask)` to filter rows based on a boolean mask." + ) + raise TypeError(msg) + if isinstance(idx, Series): + return self._with_compliant(self._compliant_series[idx._compliant_series]) + assert not isinstance(idx, int) # noqa: S101 # help mypy + return self._with_compliant(self._compliant_series[idx]) + + def __native_namespace__(self) -> ModuleType: + return self._compliant_series.__native_namespace__() + + def __arrow_c_stream__(self, requested_schema: object | None = None) -> object: + """Export a Series via the Arrow PyCapsule Interface. + + Narwhals doesn't implement anything itself here: + + - if the underlying series implements the interface, it'll return that + - else, it'll call `to_arrow` and then defer to PyArrow's implementation + + See [PyCapsule Interface](https://arrow.apache.org/docs/dev/format/CDataInterface/PyCapsuleInterface.html) + for more. + """ + native_series = self._compliant_series.native + if supports_arrow_c_stream(native_series): + return native_series.__arrow_c_stream__(requested_schema=requested_schema) + try: + pa_version = Implementation.PYARROW._backend_version() + except ModuleNotFoundError as exc: + msg = f"'pyarrow>=16.0.0' is required for `Series.__arrow_c_stream__` for object of type {type(native_series)}" + raise ModuleNotFoundError(msg) from exc + if pa_version < (16, 0): # pragma: no cover + msg = f"'pyarrow>=16.0.0' is required for `Series.__arrow_c_stream__` for object of type {type(native_series)}" + raise ModuleNotFoundError(msg) + from narwhals._arrow.utils import chunked_array + + ca = chunked_array(self.to_arrow()) + return ca.__arrow_c_stream__(requested_schema=requested_schema) + + def to_native(self) -> IntoSeriesT: + """Convert Narwhals series to native series. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1, 2]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [i64] + [ + 1 + 2 + ] + """ + return self._compliant_series.native + + def scatter( + self, + indices: Self | Iterable[int] | int, + values: Self | Iterable[PythonLiteral] | PythonLiteral, + ) -> Self: + """Set value(s) at the given index location(s). + + Arguments: + indices: Integer(s) representing the index location(s). + values: Replacement values. + + Note: + This method always returns a new Series, without modifying the original one. + Using this function in a for-loop is an anti-pattern, we recommend building + up your positions and values beforehand and doing an update in one go. + + For example, instead of + + ```python + for i in [1, 3, 2]: + value = some_function(i) + s = s.scatter(i, value) + ``` + + prefer + + ```python + positions = [1, 3, 2] + values = [some_function(x) for x in positions] + s = s.scatter(positions, values) + ``` + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> df_native = pa.table({"a": [1, 2, 3], "b": [4, 5, 6]}) + >>> df_nw = nw.from_native(df_native) + >>> df_nw.with_columns(df_nw["a"].scatter([0, 1], [999, 888])).to_native() + pyarrow.Table + a: int64 + b: int64 + ---- + a: [[999,888,3]] + b: [[4,5,6]] + """ + into_series = partial( + type(self).from_iterable, name="", backend=self.implementation + ) + + if not isinstance(indices, Series): + if not isinstance(indices, Iterable): + indices = [indices] + dtypes = self._version.dtypes + indices = into_series(values=indices, dtype=dtypes.Int64) + + if indices.is_empty(): + return self + + if not isinstance(values, Series): + if not isinstance(values, Iterable) or isinstance(values, str): + values = [values] + values = into_series(values=values) + + result = self._compliant.scatter(indices._compliant, values._compliant) + return self._with_compliant(result) + + @property + def shape(self) -> tuple[int]: + """Get the shape of the Series. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([1, 2, 3]) + >>> nw.from_native(s_native, series_only=True).shape + (3,) + """ + return (self._compliant_series.len(),) + + def _extract_native(self, arg: Any) -> Any: + if isinstance(arg, Series): + return arg._compliant_series + return arg + + def _with_compliant(self, series: Any) -> Self: + return self.__class__(series, level=self._level) + + def pipe(self, function: Callable[[Any], Self], *args: Any, **kwargs: Any) -> Self: + """Pipe function call. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([1, 2, 3]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.pipe(lambda x: x + 2).to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (3,) + Series: '' [i64] + [ + 3 + 4 + 5 + ] + """ + return function(self, *args, **kwargs) + + def __repr__(self) -> str: # pragma: no cover + return generate_repr("Narwhals Series", self.to_native().__repr__()) + + def __len__(self) -> int: + return len(self._compliant_series) + + def len(self) -> int: + r"""Return the number of elements in the Series. + + Null values count towards the total. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 2, None]]) + >>> nw.from_native(s_native, series_only=True).len() + 3 + """ + return len(self._compliant_series) + + @property + def dtype(self) -> DType: + """Get the data type of the Series. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([1, 2, 3]) + >>> nw.from_native(s_native, series_only=True).dtype + Int64 + """ + return self._compliant_series.dtype + + @property + def name(self) -> str: + """Get the name of the Series. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series("foo", [1, 2, 3]) + >>> nw.from_native(s_native, series_only=True).name + 'foo' + """ + return self._compliant_series.name + + def ewm_mean( + self, + *, + com: float | None = None, + span: float | None = None, + half_life: float | None = None, + alpha: float | None = None, + adjust: bool = True, + min_samples: int = 1, + ignore_nulls: bool = False, + ) -> Self: + r"""Compute exponentially-weighted moving average. + + Arguments: + com: Specify decay in terms of center of mass, $\gamma$, with
$\alpha = \frac{1}{1+\gamma}\forall\gamma\geq0$ + span: Specify decay in terms of span, $\theta$, with
$\alpha = \frac{2}{\theta + 1} \forall \theta \geq 1$ + half_life: Specify decay in terms of half-life, $\tau$, with
$\alpha = 1 - \exp \left\{ \frac{ -\ln(2) }{ \tau } \right\} \forall \tau > 0$ + alpha: Specify smoothing factor alpha directly, $0 < \alpha \leq 1$. + adjust: Divide by decaying adjustment factor in beginning periods to account for imbalance in relative weightings + + - When `adjust=True` (the default) the EW function is calculated + using weights $w_i = (1 - \alpha)^i$ + - When `adjust=False` the EW function is calculated recursively by + $$ + y_0=x_0 + $$ + $$ + y_t = (1 - \alpha)y_{t - 1} + \alpha x_t + $$ + min_samples: Minimum number of observations in window required to have a value (otherwise result is null). + ignore_nulls: Ignore missing values when calculating weights. + + - When `ignore_nulls=False` (default), weights are based on absolute + positions. + For example, the weights of $x_0$ and $x_2$ used in + calculating the final weighted average of $[x_0, None, x_2]$ are + $(1-\alpha)^2$ and $1$ if `adjust=True`, and + $(1-\alpha)^2$ and $\alpha$ if `adjust=False`. + - When `ignore_nulls=True`, weights are based + on relative positions. For example, the weights of + $x_0$ and $x_2$ used in calculating the final weighted + average of $[x_0, None, x_2]$ are + $1-\alpha$ and $1$ if `adjust=True`, + and $1-\alpha$ and $\alpha$ if `adjust=False`. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series(name="a", data=[1, 2, 3]) + >>> nw.from_native(s_native, series_only=True).ewm_mean( + ... com=1, ignore_nulls=False + ... ).to_native() + 0 1.000000 + 1 1.666667 + 2 2.428571 + Name: a, dtype: float64 + """ + return self._with_compliant( + self._compliant_series.ewm_mean( + com=com, + span=span, + half_life=half_life, + alpha=alpha, + adjust=adjust, + min_samples=min_samples, + ignore_nulls=ignore_nulls, + ) + ) + + def cast(self, dtype: IntoDType) -> Self: + """Cast between data types. + + Arguments: + dtype: Data type that the object will be cast into. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[True, False, True]]) + >>> nw.from_native(s_native, series_only=True).cast(nw.Int64).to_native() + + [ + [ + 1, + 0, + 1 + ] + ] + """ + _validate_dtype(dtype) + return self._with_compliant(self._compliant_series.cast(dtype)) + + def to_frame(self) -> DataFrame[Any]: + """Convert to dataframe. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series("a", [1, 2]) + >>> nw.from_native(s_native, series_only=True).to_frame().to_native() + shape: (2, 1) + ┌─────┐ + │ a │ + │ --- │ + │ i64 │ + ╞═════╡ + │ 1 │ + │ 2 │ + └─────┘ + """ + return self._dataframe(self._compliant_series.to_frame(), level=self._level) + + def to_list(self) -> list[Any]: + """Convert to list. + + Notes: + This function converts to Python scalars. It's typically + more efficient to keep your data in the format native to + your original dataframe, so we recommend only calling this + when you absolutely need to. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 2, 3]]) + >>> nw.from_native(s_native, series_only=True).to_list() + [1, 2, 3] + """ + return self._compliant_series.to_list() + + def mean(self) -> float: + """Reduce this Series to the mean value. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([1.2, 4.2]) + >>> nw.from_native(s_native, series_only=True).mean() + np.float64(2.7) + """ + return self._compliant_series.mean() + + def median(self) -> float: + """Reduce this Series to the median value. + + Notes: + Results might slightly differ across backends due to differences in the underlying algorithms used to compute the median. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[5, 3, 8]]) + >>> nw.from_native(s_native, series_only=True).median() + 5.0 + """ + return self._compliant_series.median() + + def skew(self) -> float | None: + """Calculate the sample skewness of the Series. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1, 1, 2, 10, 100]) + >>> nw.from_native(s_native, series_only=True).skew() + 1.4724267269058975 + + Notes: + The skewness is a measure of the asymmetry of the probability distribution. + A perfectly symmetric distribution has a skewness of 0. + """ + return self._compliant_series.skew() + + def kurtosis(self) -> float | None: + """Compute the kurtosis (Fisher's definition) without bias correction. + + Kurtosis is the fourth central moment divided by the square of the variance. + The Fisher's definition is used where 3.0 is subtracted from the result to give 0.0 for a normal distribution. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1, 1, 2, 10, 100]) + >>> nw.from_native(s_native, series_only=True).kurtosis() + 0.2106571340718002 + """ + return self._compliant_series.kurtosis() + + def count(self) -> int: + """Returns the number of non-null elements in the Series. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 2, None]]) + >>> nw.from_native(s_native, series_only=True).count() + 2 + """ + return self._compliant_series.count() + + def any(self) -> bool: + """Return whether any of the values in the Series are True. + + If there are no non-null elements, the result is `False`. + + Notes: + Only works on Series of data type Boolean. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([False, True, False]) + >>> nw.from_native(s_native, series_only=True).any() + np.True_ + """ + return self._compliant_series.any() + + def all(self) -> bool: + """Return whether all values in the Series are True. + + If there are no non-null elements, the result is `True`. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[False, True, False]]) + >>> nw.from_native(s_native, series_only=True).all() + False + """ + return self._compliant_series.all() + + def min(self) -> Any: + """Get the minimal value in this Series. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1, 2, 3]) + >>> nw.from_native(s_native, series_only=True).min() + 1 + """ + return self._compliant_series.min() + + def max(self) -> Any: + """Get the maximum value in this Series. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([1, 2, 3]) + >>> nw.from_native(s_native, series_only=True).max() + np.int64(3) + """ + return self._compliant_series.max() + + def arg_min(self) -> int: + """Returns the index of the minimum value. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 2, 3]]) + >>> nw.from_native(s_native, series_only=True).arg_min() + 0 + """ + return self._compliant_series.arg_min() + + def arg_max(self) -> int: + """Returns the index of the maximum value. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1, 2, 3]) + >>> nw.from_native(s_native, series_only=True).arg_max() + 2 + """ + return self._compliant_series.arg_max() + + def sum(self) -> float: + """Reduce this Series to the sum value. + + If there are no non-null elements, the result is zero. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 2, 3]]) + >>> nw.from_native(s_native, series_only=True).sum() + 6 + """ + return self._compliant_series.sum() + + def std(self, *, ddof: int = 1) -> float: + """Get the standard deviation of this Series. + + Arguments: + ddof: "Delta Degrees of Freedom": the divisor used in the calculation is N - ddof, + where N represents the number of elements. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1, 2, 3]) + >>> nw.from_native(s_native, series_only=True).std() + 1.0 + """ + return self._compliant_series.std(ddof=ddof) + + def var(self, *, ddof: int = 1) -> float: + """Get the variance of this Series. + + Arguments: + ddof: "Delta Degrees of Freedom": the divisor used in the calculation is N - ddof, + where N represents the number of elements. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 2, 3]]) + >>> nw.from_native(s_native, series_only=True).var() + 1.0 + """ + return self._compliant_series.var(ddof=ddof) + + def clip( + self, + lower_bound: Self | NumericLiteral | TemporalLiteral | None = None, + upper_bound: Self | NumericLiteral | TemporalLiteral | None = None, + ) -> Self: + r"""Clip values in the Series. + + Arguments: + lower_bound: Lower bound value. + upper_bound: Upper bound value. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([-1, 1, -3, 3, -5, 5]) + >>> nw.from_native(s_native, series_only=True).clip(-1, 3).to_native() + 0 -1 + 1 1 + 2 -1 + 3 3 + 4 -1 + 5 3 + dtype: int64 + """ + if lower_bound is None: + return self._with_compliant( + self._compliant_series.clip_upper( + upper_bound=self._extract_native(upper_bound) + ) + ) + if upper_bound is None: + return self._with_compliant( + self._compliant_series.clip_lower( + lower_bound=self._extract_native(lower_bound) + ) + ) + return self._with_compliant( + self._compliant_series.clip( + lower_bound=self._extract_native(lower_bound), + upper_bound=self._extract_native(upper_bound), + ) + ) + + def first(self) -> PythonLiteral: + """Get the first element of the Series. + + Returns: + A scalar value or `None` if the Series is empty. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1, 2, 3]) + >>> s_nw = nw.from_native(s_native, series_only=True) + >>> s_nw.first() + 1 + >>> s_nw.filter(s_nw > 5).first() is None + True + """ + return self._compliant_series.first() + + def last(self) -> PythonLiteral: + """Get the last element of the Series. + + Returns: + A scalar value or `None` if the Series is empty. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 2, 3]]) + >>> s_nw = nw.from_native(s_native, series_only=True) + >>> s_nw.last() + 3 + >>> s_nw.filter(s_nw > 5).last() is None + True + """ + return self._compliant_series.last() + + def is_in(self, other: Any) -> Self: + """Check if the elements of this Series are in the other sequence. + + Arguments: + other: Sequence of primitive type. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 2, 3]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.is_in([3, 2, 8]).to_native() # doctest: +ELLIPSIS + + [ + [ + false, + true, + true + ] + ] + """ + return self._with_compliant( + self._compliant_series.is_in(to_native(other, pass_through=True)) + ) + + def arg_true(self) -> Self: + """Find elements where boolean Series is True. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1, None, None, 2]) + >>> nw.from_native( + ... s_native, series_only=True + ... ).is_null().arg_true().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [u32] + [ + 1 + 2 + ] + """ + return self._with_compliant(self._compliant_series.arg_true()) + + def drop_nulls(self) -> Self: + """Drop null values. + + Notes: + pandas handles null values differently from Polars and PyArrow. + See [null_handling](../concepts/null_handling.md/) for reference. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([2, 4, None, 3, 5]) + >>> nw.from_native(s_native, series_only=True).drop_nulls().to_native() + 0 2.0 + 1 4.0 + 3 3.0 + 4 5.0 + dtype: float64 + """ + return self._with_compliant(self._compliant_series.drop_nulls()) + + def abs(self) -> Self: + """Calculate the absolute value of each element. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[2, -4, 3]]) + >>> nw.from_native( + ... s_native, series_only=True + ... ).abs().to_native() # doctest: +ELLIPSIS + + [ + [ + 2, + 4, + 3 + ] + ] + """ + return self._with_compliant(self._compliant_series.abs()) + + def cum_sum(self, *, reverse: bool = False) -> Self: + """Calculate the cumulative sum. + + Arguments: + reverse: reverse the operation + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([2, 4, 3]) + >>> nw.from_native(s_native, series_only=True).cum_sum().to_native() + 0 2 + 1 6 + 2 9 + dtype: int64 + """ + return self._with_compliant(self._compliant_series.cum_sum(reverse=reverse)) + + def unique(self, *, maintain_order: bool = False) -> Self: + """Returns unique values of the series. + + Arguments: + maintain_order: Keep the same order as the original series. This may be more + expensive to compute. Settings this to `True` blocks the possibility + to run on the streaming engine for Polars. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([2, 4, 4, 6]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.unique( + ... maintain_order=True + ... ).to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (3,) + Series: '' [i64] + [ + 2 + 4 + 6 + ] + """ + return self._with_compliant( + self._compliant_series.unique(maintain_order=maintain_order) + ) + + def diff(self) -> Self: + """Calculate the difference with the previous element, for each element. + + Notes: + pandas may change the dtype here, for example when introducing missing + values in an integer column. To ensure, that the dtype doesn't change, + you may want to use `fill_null` and `cast`. For example, to calculate + the diff and fill missing values with `0` in a Int64 column, you could + do: + + s.diff().fill_null(0).cast(nw.Int64) + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[2, 4, 3]]) + >>> nw.from_native( + ... s_native, series_only=True + ... ).diff().to_native() # doctest: +ELLIPSIS + + [ + [ + null, + 2, + -1 + ] + ] + """ + return self._with_compliant(self._compliant_series.diff()) + + def shift(self, n: int) -> Self: + """Shift values by `n` positions. + + Arguments: + n: Number of indices to shift forward. If a negative value is passed, + values are shifted in the opposite direction instead. + + Notes: + pandas may change the dtype here, for example when introducing missing + values in an integer column. To ensure, that the dtype doesn't change, + you may want to use `fill_null` and `cast`. For example, to shift + and fill missing values with `0` in a Int64 column, you could + do: + + s.shift(1).fill_null(0).cast(nw.Int64) + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([2, 4, 3]) + >>> nw.from_native(s_native, series_only=True).shift(1).to_native() + 0 NaN + 1 2.0 + 2 4.0 + dtype: float64 + """ + ensure_type(n, int, param_name="n") + + return self._with_compliant(self._compliant_series.shift(n)) + + def sample( + self, + n: int | None = None, + *, + fraction: float | None = None, + with_replacement: bool = False, + seed: int | None = None, + ) -> Self: + """Sample randomly from this Series. + + Arguments: + n: Number of items to return. Cannot be used with fraction. + fraction: Fraction of items to return. Cannot be used with n. + with_replacement: Allow values to be sampled more than once. + seed: Seed for the random number generator. If set to None (default), a random + seed is generated for each sample operation. + + Notes: + The `sample` method returns a Series with a specified number of + randomly selected items chosen from this Series. + The results are not consistent across libraries. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1, 2, 3, 4]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.sample( + ... fraction=1.0, with_replacement=True + ... ).to_native() # doctest: +SKIP + shape: (4,) + Series: '' [i64] + [ + 1 + 4 + 3 + 4 + ] + """ + return self._with_compliant( + self._compliant_series.sample( + n=n, fraction=fraction, with_replacement=with_replacement, seed=seed + ) + ) + + def alias(self, name: str) -> Self: + """Rename the Series. + + Notes: + This method is very cheap, but does not guarantee that data + will be copied. For example: + + ```python + s1: nw.Series + s2 = s1.alias("foo") + arr = s2.to_numpy() + arr[0] = 999 + ``` + + may (depending on the backend, and on the version) result in + `s1`'s data being modified. We recommend: + + - if you need to alias an object and don't need the original + one around any more, just use `alias` without worrying about it. + - if you were expecting `alias` to copy data, then explicitly call + `.clone` before calling `alias`. + + Arguments: + name: The new name. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([1, 2, 3], name="foo") + >>> nw.from_native(s_native, series_only=True).alias("bar").to_native() + 0 1 + 1 2 + 2 3 + Name: bar, dtype: int64 + """ + return self._with_compliant(self._compliant_series.alias(name=name)) + + def rename(self, name: str) -> Self: + """Rename the Series. + + Alias for `Series.alias()`. + + Notes: + This method is very cheap, but does not guarantee that data + will be copied. For example: + + ```python + s1: nw.Series + s2 = s1.rename("foo") + arr = s2.to_numpy() + arr[0] = 999 + ``` + + may (depending on the backend, and on the version) result in + `s1`'s data being modified. We recommend: + + - if you need to rename an object and don't need the original + one around any more, just use `rename` without worrying about it. + - if you were expecting `rename` to copy data, then explicitly call + `.clone` before calling `rename`. + + Arguments: + name: The new name. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series("foo", [1, 2, 3]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.rename("bar").to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (3,) + Series: 'bar' [i64] + [ + 1 + 2 + 3 + ] + """ + return self.alias(name=name) + + def replace_strict( + self, + old: Sequence[Any] | Mapping[Any, Any], + new: Sequence[Any] | None = None, + *, + default: Any | NoDefault = no_default, + return_dtype: IntoDType | None = None, + ) -> Self: + """Replace all values by different values. + + Arguments: + old: Sequence of values to replace. It also accepts a mapping of values to + their replacement as syntactic sugar for + `replace_strict(old=list(mapping.keys()), new=list(mapping.values()))`. + new: Sequence of values to replace by. Length must match the length of `old`. + default: Set values that were not replaced to this value. If no default is + specified, (default), an error is raised if any values were not replaced. + Accepts expression input. Non-expression inputs are parsed as literals. + return_dtype: The data type of the resulting expression. If set to `None` + (default), the data type is determined automatically based on the other + inputs. + + Raises: + InvalidOperationError: If any non-null values in the original column were not + replaced, and no default was specified. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([3, 0, 1, 2], name="a") + >>> nw.from_native(s_native, series_only=True).replace_strict( + ... [0, 1, 2, 3], ["zero", "one", "two", "three"], return_dtype=nw.String + ... ).to_native() + 0 three + 1 zero + 2 one + 3 two + Name: a, dtype: str + + Replace values and set a default for values not in the mapping: + + >>> s_native = pd.Series([1, 2, 3, 4], name="a") + >>> s_default = pd.Series(["beluga", "narwhal", "orca", "vaquita"]) + >>> nw.from_native(s_native, series_only=True).replace_strict( + ... {1: "one", 2: "two"}, + ... default=nw.from_native(s_default, series_only=True), + ... return_dtype=nw.String, + ... ).to_native() + 0 one + 1 two + 2 orca + 3 vaquita + Name: a, dtype: str + """ + if new is None: + if not isinstance(old, Mapping): + msg = "`new` argument is required if `old` argument is not a Mapping type" + raise TypeError(msg) + + new = list(old.values()) + old = list(old.keys()) + + assert isinstance(new, Sequence) # noqa: S101, help mypy + assert isinstance(old, Sequence) # noqa: S101, help mypy + + return self._with_compliant( + self._compliant_series.replace_strict( + old=old, + new=new, + default=self._extract_native(default), + return_dtype=return_dtype, + ) + ) + + def sort(self, *, descending: bool = False, nulls_last: bool = False) -> Self: + """Sort this Series. Place null values first. + + Arguments: + descending: Sort in descending order. + nulls_last: Place null values last instead of first. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([5, None, 1, 2]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.sort(descending=True).to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (4,) + Series: '' [i64] + [ + null + 5 + 2 + 1 + ] + """ + return self._with_compliant( + self._compliant_series.sort(descending=descending, nulls_last=nulls_last) + ) + + def is_null(self) -> Self: + """Returns a boolean Series indicating which values are null. + + Notes: + pandas handles null values differently from Polars and PyArrow. + See [null_handling](../concepts/null_handling.md/) for reference. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 2, None]]) + >>> nw.from_native( + ... s_native, series_only=True + ... ).is_null().to_native() # doctest:+ELLIPSIS + + [ + [ + false, + false, + true + ] + ] + """ + return self._with_compliant(self._compliant_series.is_null()) + + def is_nan(self) -> Self: + """Returns a boolean Series indicating which values are NaN. + + Notes: + pandas handles null values differently from Polars and PyArrow. + See [null_handling](../concepts/null_handling.md/) for reference. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([0.0, None, 2.0], dtype="Float64") + >>> nw.from_native(s_native, series_only=True).is_nan().to_native() + 0 False + 1 + 2 False + dtype: boolean + """ + return self._with_compliant(self._compliant_series.is_nan()) + + def fill_null( + self, + value: Self | NonNestedLiteral = None, + strategy: FillNullStrategy | None = None, + limit: int | None = None, + ) -> Self: + """Fill null values using the specified value. + + Arguments: + value: Value used to fill null values. + strategy: Strategy used to fill null values. + limit: Number of consecutive null values to fill when using the 'forward' or 'backward' strategy. + + Notes: + - pandas handles null values differently from other libraries. + See [null_handling](../concepts/null_handling.md/) + for reference. + - For pandas Series of `object` dtype, `fill_null` will not automatically change the + Series' dtype as pandas used to do. Explicitly call `cast` if you want the dtype to change. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([1, 2, None]) + >>> + >>> nw.from_native(s_native, series_only=True).fill_null(5).to_native() + 0 1.0 + 1 2.0 + 2 5.0 + dtype: float64 + + Or using a strategy: + + >>> nw.from_native(s_native, series_only=True).fill_null( + ... strategy="forward", limit=1 + ... ).to_native() + 0 1.0 + 1 2.0 + 2 2.0 + dtype: float64 + """ + if value is not None and strategy is not None: + msg = "cannot specify both `value` and `strategy`" + raise ValueError(msg) + if value is None and strategy is None: + msg = "must specify either a fill `value` or `strategy`" + raise ValueError(msg) + if strategy is not None and strategy not in {"forward", "backward"}: + msg = f"strategy not supported: {strategy}" + raise ValueError(msg) + return self._with_compliant( + self._compliant_series.fill_null( + value=self._extract_native(value), strategy=strategy, limit=limit + ) + ) + + def fill_nan(self, value: float | None) -> Self: + """Fill floating point NaN values with given value. + + Arguments: + value: Value used to fill NaN values. + + Notes: + This function only fills `'NaN'` values, not null ones, except for pandas + which doesn't distinguish between them. + See [null_handling](../concepts/null_handling.md/) for reference. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([1.0, 2.0, float("nan"), None]) + >>> result = nw.from_native(s_native, series_only=True).fill_nan(0) + >>> result.to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (4,) + Series: '' [f64] + [ + 1.0 + 2.0 + 0.0 + null + ] + """ + return self._with_compliant( + self._compliant_series.fill_nan(value=self._extract_native(value)) + ) + + def is_between( + self, + lower_bound: Any | Self, + upper_bound: Any | Self, + closed: ClosedInterval = "both", + ) -> Self: + """Get a boolean mask of the values that are between the given lower/upper bounds. + + Arguments: + lower_bound: Lower bound value. + upper_bound: Upper bound value. + closed: Define which sides of the interval are closed (inclusive). Options are {"left", "right", "none", "both"}. + + Notes: + If the value of the `lower_bound` is greater than that of the `upper_bound`, + then the values will be False, as no value can satisfy the condition. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 2, 3, 4, 5]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.is_between(2, 4, "right").to_native() # doctest: +ELLIPSIS + + [ + [ + false, + false, + true, + true, + false + ] + ] + """ + return self._with_compliant( + self._compliant_series.is_between( + self._extract_native(lower_bound), + self._extract_native(upper_bound), + closed=closed, + ) + ) + + def n_unique(self) -> int: + """Count the number of unique values. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1, 2, 2, 3]) + >>> nw.from_native(s_native, series_only=True).n_unique() + 3 + """ + return self._compliant_series.n_unique() + + def to_numpy(self) -> _1DArray: + """Convert to numpy. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([1, 2, 3], name="a") + >>> nw.from_native(s_native, series_only=True).to_numpy() + array([1, 2, 3]...) + """ + return self._compliant_series.to_numpy(None, copy=None) + + def to_pandas(self) -> pd.Series[Any]: + """Convert to pandas Series. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series("a", [1, 2, 3]) + >>> nw.from_native(s_native, series_only=True).to_pandas() + 0 1 + 1 2 + 2 3 + Name: a, dtype: int64 + """ + return self._compliant_series.to_pandas() + + def to_polars(self) -> pl.Series: + """Convert to polars Series. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 2, 3]]) + >>> nw.from_native( + ... s_native, series_only=True + ... ).to_polars() # doctest: +NORMALIZE_WHITESPACE + shape: (3,) + Series: '' [i64] + [ + 1 + 2 + 3 + ] + """ + return self._compliant_series.to_polars() + + def __add__(self, other: object) -> Self: + return self._with_compliant( + self._compliant_series.__add__(self._extract_native(other)) + ) + + def __radd__(self, other: object) -> Self: + return self._with_compliant( + self._compliant_series.__radd__(self._extract_native(other)) + ) + + def __sub__(self, other: object) -> Self: + return self._with_compliant( + self._compliant_series.__sub__(self._extract_native(other)) + ) + + def __rsub__(self, other: object) -> Self: + return self._with_compliant( + self._compliant_series.__rsub__(self._extract_native(other)) + ) + + def __mul__(self, other: object) -> Self: + return self._with_compliant( + self._compliant_series.__mul__(self._extract_native(other)) + ) + + def __rmul__(self, other: object) -> Self: + return self._with_compliant( + self._compliant_series.__rmul__(self._extract_native(other)) + ) + + def __truediv__(self, other: object) -> Self: + return self._with_compliant( + self._compliant_series.__truediv__(self._extract_native(other)) + ) + + def __rtruediv__(self, other: object) -> Self: + return self._with_compliant( + self._compliant_series.__rtruediv__(self._extract_native(other)) + ) + + def __floordiv__(self, other: object) -> Self: + return self._with_compliant( + self._compliant_series.__floordiv__(self._extract_native(other)) + ) + + def __rfloordiv__(self, other: object) -> Self: + return self._with_compliant( + self._compliant_series.__rfloordiv__(self._extract_native(other)) + ) + + def __pow__(self, other: object) -> Self: + return self._with_compliant( + self._compliant_series.__pow__(self._extract_native(other)) + ) + + def __rpow__(self, other: object) -> Self: + return self._with_compliant( + self._compliant_series.__rpow__(self._extract_native(other)) + ) + + def __mod__(self, other: object) -> Self: + return self._with_compliant( + self._compliant_series.__mod__(self._extract_native(other)) + ) + + def __rmod__(self, other: object) -> Self: + return self._with_compliant( + self._compliant_series.__rmod__(self._extract_native(other)) + ) + + def __eq__(self, other: object) -> Self: # type: ignore[override] + return self._with_compliant( + self._compliant_series.__eq__(self._extract_native(other)) + ) + + def __ne__(self, other: object) -> Self: # type: ignore[override] + return self._with_compliant( + self._compliant_series.__ne__(self._extract_native(other)) + ) + + def __gt__(self, other: Any) -> Self: + return self._with_compliant( + self._compliant_series.__gt__(self._extract_native(other)) + ) + + def __ge__(self, other: Any) -> Self: + return self._with_compliant( + self._compliant_series.__ge__(self._extract_native(other)) + ) + + def __lt__(self, other: Any) -> Self: + return self._with_compliant( + self._compliant_series.__lt__(self._extract_native(other)) + ) + + def __le__(self, other: Any) -> Self: + return self._with_compliant( + self._compliant_series.__le__(self._extract_native(other)) + ) + + def __and__(self, other: Any) -> Self: + return self._with_compliant( + self._compliant_series.__and__(self._extract_native(other)) + ) + + def __rand__(self, other: Any) -> Self: + return self._with_compliant( + self._compliant_series.__rand__(self._extract_native(other)) + ) + + def __or__(self, other: Any) -> Self: + return self._with_compliant( + self._compliant_series.__or__(self._extract_native(other)) + ) + + def __ror__(self, other: Any) -> Self: + return self._with_compliant( + self._compliant_series.__ror__(self._extract_native(other)) + ) + + # unary + def __invert__(self) -> Self: + return self._with_compliant(self._compliant_series.__invert__()) + + def filter(self, predicate: Any) -> Self: + """Filter elements in the Series based on a condition. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([4, 10, 15, 34, 50]) + >>> s_nw = nw.from_native(s_native, series_only=True) + >>> s_nw.filter(s_nw > 10).to_native() + 2 15 + 3 34 + 4 50 + dtype: int64 + """ + return self._with_compliant( + self._compliant_series.filter(self._extract_native(predicate)) + ) + + # --- descriptive --- + def is_duplicated(self) -> Self: + r"""Get a mask of all duplicated rows in the Series. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 2, 3, 1]]) + >>> nw.from_native( + ... s_native, series_only=True + ... ).is_duplicated().to_native() # doctest: +ELLIPSIS + + [ + [ + true, + false, + false, + true + ] + ] + """ + return self._with_compliant(self._compliant_series.is_duplicated()) + + def is_empty(self) -> bool: + r"""Check if the series is empty. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1, 2, 3]) + >>> s_nw = nw.from_native(s_native, series_only=True) + + >>> s_nw.is_empty() + False + >>> s_nw.filter(s_nw > 10).is_empty() + True + """ + return self._compliant_series.is_empty() + + def is_unique(self) -> Self: + r"""Get a mask of all unique rows in the Series. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([1, 2, 3, 1]) + >>> nw.from_native(s_native, series_only=True).is_unique().to_native() + 0 False + 1 True + 2 True + 3 False + dtype: bool + """ + return self._with_compliant(self._compliant_series.is_unique()) + + def null_count(self) -> int: + r"""Count the number of null values. + + Notes: + pandas handles null values differently from Polars and PyArrow. + See [null_handling](../concepts/null_handling.md/) for reference. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, None, None]]) + >>> nw.from_native(s_native, series_only=True).null_count() + 2 + """ + return self._compliant_series.null_count() + + def is_first_distinct(self) -> Self: + r"""Return a boolean mask indicating the first occurrence of each distinct value. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1, 1, 2, 3, 2]) + >>> nw.from_native( + ... s_native, series_only=True + ... ).is_first_distinct().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (5,) + Series: '' [bool] + [ + true + false + true + true + false + ] + """ + return self._with_compliant(self._compliant_series.is_first_distinct()) + + def is_last_distinct(self) -> Self: + r"""Return a boolean mask indicating the last occurrence of each distinct value. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([1, 1, 2, 3, 2]) + >>> nw.from_native(s_native, series_only=True).is_last_distinct().to_native() + 0 False + 1 True + 2 False + 3 True + 4 True + dtype: bool + """ + return self._with_compliant(self._compliant_series.is_last_distinct()) + + def is_sorted(self, *, descending: bool = False) -> bool: + r"""Check if the Series is sorted. + + Arguments: + descending: Check if the Series is sorted in descending order. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[3, 2, 1]]) + >>> s_nw = nw.from_native(s_native, series_only=True) + + >>> s_nw.is_sorted(descending=False) + False + + >>> s_nw.is_sorted(descending=True) + True + """ + return self._compliant_series.is_sorted(descending=descending) + + def value_counts( + self, + *, + sort: bool = False, + parallel: bool = False, + name: str | None = None, + normalize: bool = False, + ) -> DataFrame[Any]: + r"""Count the occurrences of unique values. + + Arguments: + sort: Sort the output by count in descending order. If set to False (default), + the order of the output is random. + parallel: Execute the computation in parallel. Used for Polars only. + name: Give the resulting count column a specific name; if `normalize` is True + defaults to "proportion", otherwise defaults to "count". + normalize: If true gives relative frequencies of the unique values + + - The original values as first column + - Either count or proportion as second column, depending on normalize parameter. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([1, 1, 2, 3, 2], name="s") + >>> nw.from_native(s_native, series_only=True).value_counts( + ... sort=True + ... ).to_native() + s count + 0 1 2 + 1 2 2 + 2 3 1 + """ + return self._dataframe( + self._compliant_series.value_counts( + sort=sort, parallel=parallel, name=name, normalize=normalize + ), + level=self._level, + ) + + def quantile( + self, quantile: float, interpolation: RollingInterpolationMethod + ) -> float: + """Get quantile value of the series. + + Note: + pandas and Polars may have implementation differences for a given interpolation method. + + Arguments: + quantile: Quantile between 0.0 and 1.0. + interpolation: Interpolation method. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series(list(range(50))) + >>> s_nw = nw.from_native(s_native, series_only=True) + >>> [ + ... s_nw.quantile(quantile=q, interpolation="nearest") + ... for q in (0.1, 0.25, 0.5, 0.75, 0.9) + ... ] + [5.0, 12.0, 25.0, 37.0, 44.0] + """ + return self._compliant_series.quantile( + quantile=quantile, interpolation=interpolation + ) + + def zip_with(self, mask: Self, other: Self) -> Self: + """Take values from self or other based on the given mask. + + Where mask evaluates true, take values from self. Where mask evaluates false, + take values from other. + + Arguments: + mask: Boolean Series + other: Series of same type. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> data_native = pa.chunked_array([[1, 2, 3, 4, 5]]) + >>> other_native = pa.chunked_array([[5, 4, 3, 2, 1]]) + >>> mask_native = pa.chunked_array([[True, False, True, False, True]]) + >>> + >>> data_nw = nw.from_native(data_native, series_only=True) + >>> other_nw = nw.from_native(other_native, series_only=True) + >>> mask_nw = nw.from_native(mask_native, series_only=True) + >>> + >>> data_nw.zip_with(mask_nw, other_nw).to_native() # doctest: +ELLIPSIS + + [ + [ + 1, + 4, + 3, + 2, + 5 + ] + ] + """ + return self._with_compliant( + self._compliant_series.zip_with( + self._extract_native(mask), self._extract_native(other) + ) + ) + + def item(self, index: int | None = None) -> Any: + r"""Return the Series as a scalar, or return the element at the given index. + + If no index is provided, this is equivalent to `s[0]`, with a check + that the shape is (1,). With an index, this is equivalent to `s[index]`. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> nw.from_native(pl.Series("a", [1]), series_only=True).item() + 1 + + >>> nw.from_native(pl.Series("a", [9, 8, 7]), series_only=True).item(-1) + 7 + """ + if index is not None and index >= len(self): + msg = f"index {index} out of range for series of length {len(self)}" + raise IndexError(msg) + return self._compliant_series.item(index=index) + + def head(self, n: int = 10) -> Self: + r"""Get the first `n` rows. + + Arguments: + n: Number of rows to return. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series(list(range(10))) + >>> nw.from_native(s_native, series_only=True).head(3).to_native() + 0 0 + 1 1 + 2 2 + dtype: int64 + """ + return self._with_compliant(self._compliant_series.head(n)) + + def tail(self, n: int = 10) -> Self: + r"""Get the last `n` rows. + + Arguments: + n: Number of rows to return. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([list(range(10))]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.tail(3).to_native() # doctest: +ELLIPSIS + + [ + [ + 7, + 8, + 9 + ] + ] + """ + return self._with_compliant(self._compliant_series.tail(n)) + + def round(self, decimals: int = 0) -> Self: + r"""Round underlying floating point data by `decimals` digits. + + Arguments: + decimals: Number of decimals to round by. + + Notes: + For values exactly halfway between rounded decimal values pandas behaves differently than Polars and Arrow. + + pandas rounds to the nearest even value (e.g. -0.5 and 0.5 round to 0.0, 1.5 and 2.5 round to 2.0, 3.5 and + 4.5 to 4.0, etc..). + + Polars and Arrow round away from 0 (e.g. -0.5 to -1.0, 0.5 to 1.0, 1.5 to 2.0, 2.5 to 3.0, etc..). + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1.12345, 2.56789, 3.901234]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.round(1).to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (3,) + Series: '' [f64] + [ + 1.1 + 2.6 + 3.9 + ] + """ + return self._with_compliant(self._compliant_series.round(decimals)) + + def floor(self) -> Self: + r"""Compute the numerical floor. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array([[1.1, 4.3, -1.3]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.floor().to_native() # doctest:+ELLIPSIS + + [ + [ + 1, + 4, + -2 + ] + ] + """ + return self._with_compliant(self._compliant_series.floor()) + + def ceil(self) -> Self: + r"""Compute the numerical ceiling. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array([[1.1, 4.3, -1.3]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.ceil().to_native() # doctest:+ELLIPSIS + + [ + [ + 2, + 5, + -1 + ] + ] + """ + return self._with_compliant(self._compliant_series.ceil()) + + def to_dummies( + self, *, separator: str = "_", drop_first: bool = False + ) -> DataFrame[Any]: + r"""Get dummy/indicator variables. + + Arguments: + separator: Separator/delimiter used when generating column names. + drop_first: Remove the first category from the variable being encoded. + + Notes: + pandas and Polars handle null values differently. Polars distinguishes + between NaN and Null, whereas pandas doesn't. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([1, 2, 3], name="a") + >>> s_nw = nw.from_native(s_native, series_only=True) + + >>> s_nw.to_dummies(drop_first=False).to_native() + a_1 a_2 a_3 + 0 1 0 0 + 1 0 1 0 + 2 0 0 1 + + >>> s_nw.to_dummies(drop_first=True).to_native() + a_2 a_3 + 0 0 0 + 1 1 0 + 2 0 1 + """ + return self._dataframe( + self._compliant_series.to_dummies(separator=separator, drop_first=drop_first), + level=self._level, + ) + + def gather_every(self, n: int, offset: int = 0) -> Self: + r"""Take every nth value in the Series and return as new Series. + + Arguments: + n: Gather every *n*-th row. + offset: Starting index. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 2, 3, 4]]) + >>> nw.from_native(s_native, series_only=True).gather_every( + ... n=2, offset=1 + ... ).to_native() # doctest:+ELLIPSIS + + [ + [ + 2, + 4 + ] + ] + """ + return self._with_compliant( + self._compliant_series.gather_every(n=n, offset=offset) + ) + + def to_arrow(self) -> pa.Array[Any]: + r"""Convert to arrow. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1, 2, 3, 4]) + >>> nw.from_native( + ... s_native, series_only=True + ... ).to_arrow() # doctest:+NORMALIZE_WHITESPACE + + [ + 1, + 2, + 3, + 4 + ] + """ + return self._compliant_series.to_arrow() + + @overload + def mode(self, *, keep: Literal["all"] = "all") -> Self: ... + + @overload + def mode(self, *, keep: Literal["any"]) -> NonNestedLiteral: ... + + def mode(self, *, keep: ModeKeepStrategy = "all") -> Self | NonNestedLiteral: + r"""Compute the most occurring value(s). + + Can return multiple values. + + Note: + For `keep="any"` a scalar is returned, while for `keep="all"` a Series in + returned even in the case of unimodal values. + + Arguments: + keep: Whether to keep all modes or any mode found. Remark that `keep='any'` + is not deterministic for multimodal values. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series([1, 1, 2, 2, 3]) + >>> nw.from_native(s_native, series_only=True).mode().sort().to_native() + 0 1 + 1 2 + dtype: int64 + """ + _supported_keep_values = ("all", "any") + if keep not in _supported_keep_values: # pragma: no cover + msg = f"`keep` must be one of {_supported_keep_values}, found '{keep}'" + raise ValueError(msg) + + result = self._with_compliant(self._compliant_series.mode(keep=keep)) + return result.item(0) if keep == "any" else result + + def is_finite(self) -> Self: + """Returns a boolean Series indicating which values are finite. + + Warning: + Different backend handle null values differently. `is_finite` will return + False for NaN and Null's in the Dask and pandas non-nullable backend, while + for Polars, PyArrow and pandas nullable backends null values are kept as such. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[float("nan"), float("inf"), 2.0, None]]) + >>> nw.from_native( + ... s_native, series_only=True + ... ).is_finite().to_native() # doctest: +ELLIPSIS + + [ + [ + false, + false, + true, + null + ] + ] + """ + return self._with_compliant(self._compliant_series.is_finite()) + + def cum_count(self, *, reverse: bool = False) -> Self: + r"""Return the cumulative count of the non-null values in the series. + + Arguments: + reverse: reverse the operation + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series(["x", "k", None, "d"]) + >>> nw.from_native(s_native, series_only=True).cum_count( + ... reverse=True + ... ).to_native() # doctest:+NORMALIZE_WHITESPACE + shape: (4,) + Series: '' [u32] + [ + 3 + 2 + 1 + 1 + ] + """ + return self._with_compliant(self._compliant_series.cum_count(reverse=reverse)) + + def cum_min(self, *, reverse: bool = False) -> Self: + r"""Return the cumulative min of the non-null values in the series. + + Arguments: + reverse: reverse the operation + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([3, 1, None, 2]) + >>> nw.from_native(s_native, series_only=True).cum_min().to_native() + 0 3.0 + 1 1.0 + 2 NaN + 3 1.0 + dtype: float64 + """ + return self._with_compliant(self._compliant_series.cum_min(reverse=reverse)) + + def cum_max(self, *, reverse: bool = False) -> Self: + r"""Return the cumulative max of the non-null values in the series. + + Arguments: + reverse: reverse the operation + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1, 3, None, 2]]) + >>> nw.from_native( + ... s_native, series_only=True + ... ).cum_max().to_native() # doctest:+ELLIPSIS + + [ + [ + 1, + 3, + null, + 3 + ] + ] + """ + return self._with_compliant(self._compliant_series.cum_max(reverse=reverse)) + + def cum_prod(self, *, reverse: bool = False) -> Self: + r"""Return the cumulative product of the non-null values in the series. + + Arguments: + reverse: reverse the operation + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1, 3, None, 2]) + >>> nw.from_native( + ... s_native, series_only=True + ... ).cum_prod().to_native() # doctest:+NORMALIZE_WHITESPACE + shape: (4,) + Series: '' [i64] + [ + 1 + 3 + null + 6 + ] + """ + return self._with_compliant(self._compliant_series.cum_prod(reverse=reverse)) + + def rolling_sum( + self, window_size: int, *, min_samples: int | None = None, center: bool = False + ) -> Self: + """Apply a rolling sum (moving sum) over the values. + + A window of length `window_size` will traverse the values. The resulting values + will be aggregated to their sum. + + The window at a given row will include the row itself and the `window_size - 1` + elements before it. + + Arguments: + window_size: The length of the window in number of elements. It must be a + strictly positive integer. + min_samples: The number of values in the window that should be non-null before + computing a result. If set to `None` (default), it will be set equal to + `window_size`. If provided, it must be a strictly positive integer, and + less than or equal to `window_size` + center: Set the labels at the center of the window. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([1.0, 2.0, 3.0, 4.0]) + >>> nw.from_native(s_native, series_only=True).rolling_sum( + ... window_size=2 + ... ).to_native() + 0 NaN + 1 3.0 + 2 5.0 + 3 7.0 + dtype: float64 + """ + window_size, min_samples_int = _validate_rolling_arguments( + window_size=window_size, min_samples=min_samples + ) + + if len(self) == 0: # pragma: no cover + return self + + return self._with_compliant( + self._compliant_series.rolling_sum( + window_size=window_size, min_samples=min_samples_int, center=center + ) + ) + + def rolling_mean( + self, window_size: int, *, min_samples: int | None = None, center: bool = False + ) -> Self: + """Apply a rolling mean (moving mean) over the values. + + A window of length `window_size` will traverse the values. The resulting values + will be aggregated to their mean. + + The window at a given row will include the row itself and the `window_size - 1` + elements before it. + + Arguments: + window_size: The length of the window in number of elements. It must be a + strictly positive integer. + min_samples: The number of values in the window that should be non-null before + computing a result. If set to `None` (default), it will be set equal to + `window_size`. If provided, it must be a strictly positive integer, and + less than or equal to `window_size` + center: Set the labels at the center of the window. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[1.0, 2.0, 3.0, 4.0]]) + >>> nw.from_native(s_native, series_only=True).rolling_mean( + ... window_size=2 + ... ).to_native() # doctest:+ELLIPSIS + + [ + [ + null, + 1.5, + 2.5, + 3.5 + ] + ] + """ + window_size, min_samples = _validate_rolling_arguments( + window_size=window_size, min_samples=min_samples + ) + + if len(self) == 0: # pragma: no cover + return self + + return self._with_compliant( + self._compliant_series.rolling_mean( + window_size=window_size, min_samples=min_samples, center=center + ) + ) + + def rolling_var( + self, + window_size: int, + *, + min_samples: int | None = None, + center: bool = False, + ddof: int = 1, + ) -> Self: + """Apply a rolling variance (moving variance) over the values. + + A window of length `window_size` will traverse the values. The resulting values + will be aggregated to their variance. + + The window at a given row will include the row itself and the `window_size - 1` + elements before it. + + Arguments: + window_size: The length of the window in number of elements. It must be a + strictly positive integer. + min_samples: The number of values in the window that should be non-null before + computing a result. If set to `None` (default), it will be set equal to + `window_size`. If provided, it must be a strictly positive integer, and + less than or equal to `window_size`. + center: Set the labels at the center of the window. + ddof: Delta Degrees of Freedom; the divisor for a length N window is N - ddof. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> + >>> s_native = pl.Series([1.0, 3.0, 1.0, 4.0]) + >>> nw.from_native(s_native, series_only=True).rolling_var( + ... window_size=2, min_samples=1 + ... ).to_native() # doctest:+NORMALIZE_WHITESPACE + shape: (4,) + Series: '' [f64] + [ + null + 2.0 + 2.0 + 4.5 + ] + """ + window_size, min_samples = _validate_rolling_arguments( + window_size=window_size, min_samples=min_samples + ) + + if len(self) == 0: # pragma: no cover + return self + + return self._with_compliant( + self._compliant_series.rolling_var( + window_size=window_size, min_samples=min_samples, center=center, ddof=ddof + ) + ) + + def rolling_std( + self, + window_size: int, + *, + min_samples: int | None = None, + center: bool = False, + ddof: int = 1, + ) -> Self: + """Apply a rolling standard deviation (moving standard deviation) over the values. + + A window of length `window_size` will traverse the values. The resulting values + will be aggregated to their standard deviation. + + The window at a given row will include the row itself and the `window_size - 1` + elements before it. + + Arguments: + window_size: The length of the window in number of elements. It must be a + strictly positive integer. + min_samples: The number of values in the window that should be non-null before + computing a result. If set to `None` (default), it will be set equal to + `window_size`. If provided, it must be a strictly positive integer, and + less than or equal to `window_size`. + center: Set the labels at the center of the window. + ddof: Delta Degrees of Freedom; the divisor for a length N window is N - ddof. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> + >>> s_native = pd.Series([1.0, 3.0, 1.0, 4.0]) + >>> nw.from_native(s_native, series_only=True).rolling_std( + ... window_size=2, min_samples=1 + ... ).to_native() + 0 NaN + 1 1.414214 + 2 1.414214 + 3 2.121320 + dtype: float64 + """ + window_size, min_samples = _validate_rolling_arguments( + window_size=window_size, min_samples=min_samples + ) + + if len(self) == 0: # pragma: no cover + return self + + return self._with_compliant( + self._compliant_series.rolling_std( + window_size=window_size, min_samples=min_samples, center=center, ddof=ddof + ) + ) + + def __iter__(self) -> Iterator[Any]: + yield from self._compliant_series.__iter__() + + def __contains__(self, other: Any) -> bool: + return self._compliant_series.__contains__(other) + + def rank(self, method: RankMethod = "average", *, descending: bool = False) -> Self: + """Assign ranks to data, dealing with ties appropriately. + + Notes: + The resulting dtype may differ between backends. + + Arguments: + method: The method used to assign ranks to tied elements. + The following methods are available (default is 'average') + + - *"average"*: The average of the ranks that would have been assigned to + all the tied values is assigned to each value. + - *"min"*: The minimum of the ranks that would have been assigned to all + the tied values is assigned to each value. (This is also referred to + as "competition" ranking.) + - *"max"*: The maximum of the ranks that would have been assigned to all + the tied values is assigned to each value. + - *"dense"*: Like "min", but the rank of the next highest element is + assigned the rank immediately after those assigned to the tied elements. + - *"ordinal"*: All values are given a distinct rank, corresponding to the + order that the values occur in the Series. + + descending: Rank in descending order. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> s_native = pa.chunked_array([[3, 6, 1, 1, 6]]) + >>> nw.from_native(s_native, series_only=True).rank( + ... method="dense" + ... ).to_native() # doctest:+ELLIPSIS + + [ + [ + 2, + 3, + 1, + 1, + 3 + ] + ] + """ + supported_rank_methods = {"average", "min", "max", "dense", "ordinal"} + if method not in supported_rank_methods: + msg = ( + "Ranking method must be one of {'average', 'min', 'max', 'dense', 'ordinal'}. " + f"Found '{method}'" + ) + raise ValueError(msg) + + return self._with_compliant( + self._compliant_series.rank(method=method, descending=descending) + ) + + def hist( + self, + bins: list[float] | None = None, + *, + bin_count: int | None = None, + include_breakpoint: bool = True, + ) -> DataFrame[Any]: + """Bin values into buckets and count their occurrences. + + Warning: + This functionality is considered **unstable**. It may be changed at any point + without it being considered a breaking change. + + Arguments: + bins: A monotonically increasing sequence of values. + bin_count: If no bins provided, this will be used to determine the distance of the bins. + include_breakpoint: Include a column that shows the intervals as categories. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series([1, 3, 8, 8, 2, 1, 3], name="a") + >>> nw.from_native(s_native, series_only=True).hist(bin_count=4) + ┌────────────────────┐ + | Narwhals DataFrame | + |--------------------| + | breakpoint count| + |0 2.75 3| + |1 4.50 2| + |2 6.25 0| + |3 8.00 2| + └────────────────────┘ + """ + if bins is not None: + if any(bins[i - 1] >= bins[i] for i in range(1, len(bins))): + msg = "bins must increase monotonically" + raise ComputeError(msg) + if bin_count is not None: + msg = f"can only provide one of `bin_count` or `bins`, got: {bin_count=}, {bins=}" + raise ComputeError(msg) + result = self._compliant_series.hist_from_bins( + bins=bins, include_breakpoint=include_breakpoint + ) + else: + # polars (v1.20) sets bin=10 if neither are provided. + default = 10 + bin_count = default if bin_count is None else bin_count + result = self._compliant_series.hist_from_bin_count( + bin_count=bin_count, include_breakpoint=include_breakpoint + ) + + return self._dataframe(result, level=self._level) + + def log(self, base: float = math.e) -> Self: + r"""Compute the logarithm to a given base. + + Arguments: + base: Given base, defaults to `e` + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series([1, 2, 4], name="a") + >>> s = nw.from_native(s_native, series_only=True) + >>> s.log(base=2) + ┌───────────────────────┐ + | Narwhals Series | + |-----------------------| + |0 0.0 | + |1 1.0 | + |2 2.0 | + |Name: a, dtype: float64| + └───────────────────────┘ + """ + return self._with_compliant(self._compliant_series.log(base=base)) + + def exp(self) -> Self: + r"""Compute the exponent. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series([-1, 0, 1], name="a") + >>> s = nw.from_native(s_native, series_only=True) + >>> s.exp() + ┌───────────────────────┐ + | Narwhals Series | + |-----------------------| + |0 0.367879 | + |1 1.000000 | + |2 2.718282 | + |Name: a, dtype: float64| + └───────────────────────┘ + """ + return self._with_compliant(self._compliant_series.exp()) + + def sin(self) -> Self: + r"""Compute the element-wise value for the sine. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> from math import pi + >>> s_native = pd.Series([0, pi / 2, 3 * pi / 2], name="a") + >>> s = nw.from_native(s_native, series_only=True) + >>> s.sin() + ┌───────────────────────┐ + | Narwhals Series | + |-----------------------| + |0 0.0 | + |1 1.0 | + |2 -1.0 | + |Name: a, dtype: float64| + └───────────────────────┘ + """ + return self._with_compliant(self._compliant_series.sin()) + + def cos(self) -> Self: + r"""Compute the element-wise value for the cosine. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> from math import pi + >>> s_native = pd.Series([0, pi / 2, 3 * pi / 2], name="a") + >>> s = nw.from_native(s_native, series_only=True) + >>> s.cos().round(4) + ┌───────────────────────┐ + | Narwhals Series | + |-----------------------| + |0 1.0 | + |1 0.0 | + |2 -0.0 | + |Name: a, dtype: float64| + └───────────────────────┘ + """ + return self._with_compliant(self._compliant_series.cos()) + + def sqrt(self) -> Self: + r"""Compute the square root. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series([1, 4, 9], name="a") + >>> s = nw.from_native(s_native, series_only=True) + >>> s.sqrt() + ┌───────────────────────┐ + | Narwhals Series | + |-----------------------| + |0 1.0 | + |1 2.0 | + |2 3.0 | + |Name: a, dtype: float64| + └───────────────────────┘ + """ + return self._with_compliant(self._compliant_series.sqrt()) + + def is_close( + self, + other: Self | NumericLiteral, + *, + abs_tol: float = 0.0, + rel_tol: float = 1e-09, + nans_equal: bool = False, + ) -> Self: + r"""Get a boolean mask of the values being close to the other values. + + Two values `a` and `b` are considered close if the following condition holds: + + $$ + |a-b| \le max \{ \text{rel\_tol} \cdot max \{ |a|, |b| \}, \text{abs\_tol} \} + $$ + + Arguments: + other: Values to compare with. + abs_tol: Absolute tolerance. This is the maximum allowed absolute difference + between two values. Must be non-negative. + rel_tol: Relative tolerance. This is the maximum allowed difference between + two values, relative to the larger absolute value. Must be in the range + [0, 1). + nans_equal: Whether NaN values should be considered equal. + + Notes: + The implementation of this method is symmetric and mirrors the behavior of + `math.isclose`. Specifically note that this behavior is different to + `numpy.isclose`. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> + >>> data = [1.0, float("inf"), 1.41, None, float("nan")] + >>> s_native = pa.chunked_array([data]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.is_close(1.4, abs_tol=0.1).to_native() # doctest:+ELLIPSIS + + [ + [ + false, + false, + true, + null, + false + ] + ] + """ + if not self.dtype.is_numeric(): + msg = ( + f"`is_close` operation not supported for dtype `{self.dtype}`\n\n" + "Hint: `is_close` is only supported for numeric types" + ) + raise InvalidOperationError(msg) + # Creating a temporary name if series is unnamed (possible in pandas-like scenario) + # as `select`-ing a column named `None` would break otherwise + orig_name = self.name + name_is_none = orig_name is None + tmp_name = "__nw_is_close__" if name_is_none else orig_name + expr = col(tmp_name).is_close( + other, abs_tol=abs_tol, rel_tol=rel_tol, nans_equal=nans_equal + ) + series = self.rename(tmp_name) if name_is_none else self + result = series.to_frame().select(expr).get_column(tmp_name) + result = result.rename(orig_name) if name_is_none else result + return cast("Self", result) + + @unstable + def any_value(self, *, ignore_nulls: bool = False) -> PythonLiteral: + """Get a random value from the column. + + Warning: + This functionality is considered **unstable** as it diverges from the polars API. + It may be changed at any point without it being considered a breaking change. + + Arguments: + ignore_nulls: Whether to ignore null values or not. + If `True` and there are no not-null elements, then `None` is returned. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array([[1, 2, None]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.any_value(ignore_nulls=True) + 1 + """ + return self._compliant_series.any_value(ignore_nulls=ignore_nulls) + + @property + def str(self) -> SeriesStringNamespace[Self]: + return SeriesStringNamespace(self) + + @property + def dt(self) -> SeriesDateTimeNamespace[Self]: + return SeriesDateTimeNamespace(self) + + @property + def cat(self) -> SeriesCatNamespace[Self]: + return SeriesCatNamespace(self) + + @property + def list(self) -> SeriesListNamespace[Self]: + return SeriesListNamespace(self) + + @property + def struct(self) -> SeriesStructNamespace[Self]: + return SeriesStructNamespace(self) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/series_cat.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/series_cat.py new file mode 100644 index 0000000000000000000000000000000000000000..525d4eb1ff8762495b5ea49af6ddf6a0e3ea04d1 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/series_cat.py @@ -0,0 +1,27 @@ +from __future__ import annotations + +from typing import Generic + +from narwhals.typing import SeriesT + + +class SeriesCatNamespace(Generic[SeriesT]): + def __init__(self, series: SeriesT) -> None: + self._narwhals_series = series + + def get_categories(self) -> SeriesT: + """Get unique categories from column. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series(["apple", "mango", "mango"], dtype="category") + >>> s = nw.from_native(s_native, series_only=True) + >>> s.cat.get_categories().to_native() + 0 apple + 1 mango + dtype: str + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.cat.get_categories() + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/series_dt.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/series_dt.py new file mode 100644 index 0000000000000000000000000000000000000000..f808894c1a99ec0855cac22a80c2507f583fe570 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/series_dt.py @@ -0,0 +1,647 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Generic + +from narwhals.typing import SeriesT + +if TYPE_CHECKING: + from narwhals.typing import TimeUnit + + +class SeriesDateTimeNamespace(Generic[SeriesT]): + def __init__(self, series: SeriesT) -> None: + self._narwhals_series = series + + def date(self) -> SeriesT: + """Get the date in a datetime series. + + Raises: + NotImplementedError: If pandas default backend is being used. + + Examples: + >>> from datetime import datetime + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series( + ... [datetime(2012, 1, 7, 10, 20), datetime(2023, 3, 10, 11, 32)] + ... ).convert_dtypes(dtype_backend="pyarrow") + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.date().to_native() + 0 2012-01-07 + 1 2023-03-10 + dtype: date32[day][pyarrow] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.date() + ) + + def year(self) -> SeriesT: + """Get the year in a datetime series. + + Examples: + >>> from datetime import datetime + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([datetime(2012, 1, 7), datetime(2023, 3, 10)]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.year().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [i32] + [ + 2012 + 2023 + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.year() + ) + + def month(self) -> SeriesT: + """Gets the month in a datetime series. + + Examples: + >>> from datetime import datetime + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([datetime(2012, 1, 7), datetime(2023, 3, 10)]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.month().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [i8] + [ + 1 + 3 + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.month() + ) + + def day(self) -> SeriesT: + """Extracts the day in a datetime series. + + Examples: + >>> from datetime import datetime + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array( + ... [[datetime(2022, 1, 1), datetime(2022, 1, 5)]] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.day().to_native() # doctest: +ELLIPSIS + + [ + [ + 1, + 5 + ] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.day() + ) + + def hour(self) -> SeriesT: + """Extracts the hour in a datetime series. + + Examples: + >>> from datetime import datetime + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array( + ... [[datetime(2022, 1, 1, 5, 3), datetime(2022, 1, 5, 9, 12)]] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.hour().to_native() # doctest: +ELLIPSIS + + [ + [ + 5, + 9 + ] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.hour() + ) + + def minute(self) -> SeriesT: + """Extracts the minute in a datetime series. + + Examples: + >>> from datetime import datetime + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series( + ... [datetime(2022, 1, 1, 5, 3), datetime(2022, 1, 5, 9, 12)] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.minute().to_native() + 0 3 + 1 12 + dtype: int32 + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.minute() + ) + + def second(self) -> SeriesT: + """Extracts the seconds in a datetime series. + + Examples: + >>> from datetime import datetime + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series( + ... [datetime(2022, 1, 1, 5, 3, 10), datetime(2022, 1, 5, 9, 12, 4)] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.second().to_native() + 0 10 + 1 4 + dtype: int32 + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.second() + ) + + def millisecond(self) -> SeriesT: + """Extracts the milliseconds in a datetime series. + + Examples: + >>> from datetime import datetime + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series( + ... [ + ... datetime(2022, 1, 1, 5, 3, 7, 400000), + ... datetime(2022, 1, 1, 5, 3, 7, 0), + ... ] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.millisecond().alias("datetime").to_native() + 0 400 + 1 0 + Name: datetime, dtype: int32 + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.millisecond() + ) + + def microsecond(self) -> SeriesT: + """Extracts the microseconds in a datetime series. + + Examples: + >>> from datetime import datetime + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series( + ... [ + ... datetime(2022, 1, 1, 5, 3, 7, 400000), + ... datetime(2022, 1, 1, 5, 3, 7, 0), + ... ] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.microsecond().alias("datetime").to_native() + 0 400000 + 1 0 + Name: datetime, dtype: int32 + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.microsecond() + ) + + def nanosecond(self) -> SeriesT: + """Extract the nanoseconds in a date series. + + Examples: + >>> from datetime import datetime + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series( + ... [ + ... datetime(2022, 1, 1, 5, 3, 7, 400000), + ... datetime(2022, 1, 1, 5, 3, 7, 0), + ... ] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.nanosecond().alias("datetime").to_native() + 0 400000000 + 1 0 + Name: datetime, dtype: int32 + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.nanosecond() + ) + + def ordinal_day(self) -> SeriesT: + """Get ordinal day. + + Examples: + >>> from datetime import datetime + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array( + ... [[datetime(2020, 1, 1), datetime(2020, 8, 3)]] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.ordinal_day().to_native() # doctest: +ELLIPSIS + + [ + [ + 1, + 216 + ] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.ordinal_day() + ) + + def weekday(self) -> SeriesT: + """Extract the week day in a datetime series. + + Note that Monday = 1 and Sunday = 7. + + Examples: + >>> from datetime import datetime + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array( + ... [[datetime(2020, 1, 1), datetime(2020, 8, 3)]] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.weekday().to_native() # doctest: +ELLIPSIS + + [ + [ + 3, + 1 + ] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.weekday() + ) + + def total_minutes(self) -> SeriesT: + """Get total minutes. + + Notes: + The function outputs the total minutes in the int dtype by default, + however, pandas may change the dtype to float when there are missing values, + consider using `fill_null()` in this case. + + Examples: + >>> from datetime import timedelta + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series( + ... [timedelta(minutes=10), timedelta(minutes=20, seconds=40)] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.total_minutes().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [i64] + [ + 10 + 20 + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.total_minutes() + ) + + def total_seconds(self) -> SeriesT: + """Get total seconds. + + Notes: + The function outputs the total seconds in the int dtype by default, + however, pandas may change the dtype to float when there are missing values, + consider using `fill_null()` in this case. + + Examples: + >>> from datetime import timedelta + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series( + ... [timedelta(minutes=10), timedelta(minutes=20, seconds=40)] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.total_seconds().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [i64] + [ + 600 + 1240 + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.total_seconds() + ) + + def total_milliseconds(self) -> SeriesT: + """Get total milliseconds. + + Notes: + The function outputs the total milliseconds in the int dtype by default, + however, pandas may change the dtype to float when there are missing values, + consider using `fill_null()` in this case. + + Examples: + >>> from datetime import timedelta + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series( + ... [ + ... timedelta(milliseconds=10), + ... timedelta(milliseconds=20, microseconds=40), + ... ] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.total_milliseconds().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [i64] + [ + 10 + 20 + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.total_milliseconds() + ) + + def total_microseconds(self) -> SeriesT: + """Get total microseconds. + + Notes: + The function outputs the total microseconds in the int dtype by default, + however, pandas may change the dtype to float when there are missing values, + consider using `fill_null()` in this case. + + Examples: + >>> from datetime import timedelta + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series( + ... [ + ... timedelta(microseconds=10), + ... timedelta(milliseconds=1, microseconds=200), + ... ] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.total_microseconds().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [i64] + [ + 10 + 1200 + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.total_microseconds() + ) + + def total_nanoseconds(self) -> SeriesT: + """Get total nanoseconds. + + Notes: + The function outputs the total nanoseconds in the int dtype by default, + however, pandas may change the dtype to float when there are missing values, + consider using `fill_null()` in this case. + + Examples: + >>> from datetime import datetime + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series( + ... ["2024-01-01 00:00:00.000000001", "2024-01-01 00:00:00.000000002"] + ... ).str.to_datetime(time_unit="ns") + >>> s = nw.from_native(s_native, series_only=True) + >>> s.diff().dt.total_nanoseconds().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [i64] + [ + null + 1 + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.total_nanoseconds() + ) + + def to_string(self, format: str) -> SeriesT: + """Convert a Date/Time/Datetime series into a String series with the given format. + + Arguments: + format: Format string for converting the datetime to string. + + Notes: + Unfortunately, different libraries interpret format directives a bit + differently. + + - Chrono, the library used by Polars, uses `"%.f"` for fractional seconds, + whereas pandas and Python stdlib use `".%f"`. + - PyArrow interprets `"%S"` as "seconds, including fractional seconds" + whereas most other tools interpret it as "just seconds, as 2 digits". + --- + Therefore, we make the following adjustments. + + - for pandas-like libraries, we replace `"%S.%f"` with `"%S%.f"`. + - for PyArrow, we replace `"%S.%f"` with `"%S"`. + --- + Workarounds like these don't make us happy, and we try to avoid them as + much as possible, but here we feel like it's the best compromise. + + If you just want to format a date/datetime Series as a local datetime + string, and have it work as consistently as possible across libraries, + we suggest using: + + - `"%Y-%m-%dT%H:%M:%S%.f"` for datetimes + - `"%Y-%m-%d"` for dates + --- + Though note that, even then, different tools may return a different number + of trailing zeros. Nonetheless, this is probably consistent enough for + most applications. + + If you have an application where this is not enough, please open an issue + and let us know. + + Examples: + >>> from datetime import datetime + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series([datetime(2020, 3, 1), datetime(2020, 4, 1)]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.to_string("%Y/%m/%d") + ┌───────────────┐ + |Narwhals Series| + |---------------| + |0 2020/03/01| + |1 2020/04/01| + |dtype: str | + └───────────────┘ + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.to_string(format) + ) + + def replace_time_zone(self, time_zone: str | None) -> SeriesT: + """Replace time zone. + + Arguments: + time_zone: Target time zone. + + Examples: + >>> from datetime import datetime, timezone + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series( + ... [ + ... datetime(2024, 1, 1, tzinfo=timezone.utc), + ... datetime(2024, 1, 2, tzinfo=timezone.utc), + ... ] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.replace_time_zone( + ... "Asia/Kathmandu" + ... ).to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [datetime[μs, Asia/Kathmandu]] + [ + 2024-01-01 00:00:00 +0545 + 2024-01-02 00:00:00 +0545 + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.replace_time_zone(time_zone) + ) + + def convert_time_zone(self, time_zone: str) -> SeriesT: + """Convert time zone. + + If converting from a time-zone-naive column, then conversion happens + as if converting from UTC. + + Arguments: + time_zone: Target time zone. + + Examples: + >>> from datetime import datetime, timezone + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series( + ... [ + ... datetime(2024, 1, 1, tzinfo=timezone.utc), + ... datetime(2024, 1, 2, tzinfo=timezone.utc), + ... ] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.convert_time_zone("Asia/Kathmandu").to_native() + 0 2024-01-01 05:45:00+05:45 + 1 2024-01-02 05:45:00+05:45 + dtype: datetime64[us, Asia/Kathmandu] + """ + if time_zone is None: + msg = "Target `time_zone` cannot be `None` in `convert_time_zone`. Please use `replace_time_zone(None)` if you want to remove the time zone." + raise TypeError(msg) + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.convert_time_zone(time_zone) + ) + + def timestamp(self, time_unit: TimeUnit) -> SeriesT: + """Return a timestamp in the given time unit. + + Arguments: + time_unit: One of + - 'ns': nanosecond. + - 'us': microsecond. + - 'ms': millisecond. + + Examples: + >>> from datetime import date + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series( + ... [date(2001, 1, 1), None, date(2001, 1, 3)], dtype="datetime64[ns]" + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.timestamp("ms").to_native() + 0 9.783072e+11 + 1 NaN + 2 9.784800e+11 + dtype: float64 + """ + if time_unit not in {"ns", "us", "ms"}: + msg = ( + "invalid `time_unit`" + f"\n\nExpected one of {{'ns', 'us', 'ms'}}, got {time_unit!r}." + ) + raise ValueError(msg) + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.timestamp(time_unit) + ) + + def truncate(self, every: str) -> SeriesT: + """Divide the date/datetime range into buckets. + + Arguments: + every: Length of bucket. Must be of form ``, + where `multiple` is a positive integer and `unit` is one of + + - 'ns': nanosecond. + - 'us': microsecond. + - 'ms': millisecond. + - 's': second. + - 'm': minute. + - 'h': hour. + - 'd': day. + - 'mo': month. + - 'q': quarter. + - 'y': year. + + Examples: + >>> from datetime import datetime + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series([datetime(2021, 3, 1, 12, 34)]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.truncate("1h").to_native() + 0 2021-03-01 12:00:00 + dtype: datetime64[us] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.truncate(every) + ) + + def offset_by(self, by: str) -> SeriesT: + """Offset this date by a relative time offset. + + Arguments: + by: The offset. Must be of form ``, + where `multiple` is a positive integer and `unit` is one of + + - 'ns': nanosecond. + - 'us': microsecond. + - 'ms': millisecond. + - 's': second. + - 'm': minute. + - 'h': hour. + - 'd': day. + - 'mo': month. + - 'q': quarter. + - 'y': year. + + Examples: + >>> from datetime import datetime + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series([datetime(2021, 3, 1, 12, 34)]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.dt.offset_by("1h").to_native() + 0 2021-03-01 13:34:00 + dtype: datetime64[us] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.dt.offset_by(by) + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/series_list.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/series_list.py new file mode 100644 index 0000000000000000000000000000000000000000..d48dc2b18cb3fb6c0382aa4b18d20217494e3961 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/series_list.py @@ -0,0 +1,247 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Generic + +from narwhals.typing import SeriesT + +if TYPE_CHECKING: + from narwhals.typing import NonNestedLiteral + + +class SeriesListNamespace(Generic[SeriesT]): + def __init__(self, series: SeriesT) -> None: + self._narwhals_series = series + + def len(self) -> SeriesT: + """Return the number of elements in each list. + + Null values count towards the total. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array([[[1, 2], [3, 4, None], None, []]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.list.len().to_native() # doctest: +ELLIPSIS + + [ + [ + 2, + 3, + null, + 0 + ] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.list.len() + ) + + def unique(self) -> SeriesT: + """Get the unique/distinct values in the list. + + Null values are included in the result. The order of unique values is not guaranteed. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([[1, 1, 2], [3, 3, None], None, []]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.list.unique().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (4,) + Series: '' [list[i64]] + [ + [1, 2] + [null, 3] + null + [] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.list.unique() + ) + + def contains(self, item: NonNestedLiteral) -> SeriesT: + """Check if sublists contain the given item. + + Arguments: + item: Item that will be checked for membership. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([[1, 2], None, []]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.list.contains(1).to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (3,) + Series: '' [bool] + [ + true + null + false + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.list.contains(item) + ) + + def get(self, index: int) -> SeriesT: + """Return the value by index in each list. + + Negative indices are not accepted. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([[1, 2], [3, 4, None], [None, 5]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.list.get(1).to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (3,) + Series: '' [i64] + [ + 2 + 4 + 5 + ] + """ + if not isinstance(index, int): + msg = ( + f"Index must be of type 'int'. Got type '{type(index).__name__}' instead." + ) + raise TypeError(msg) + + if index < 0: + msg = f"Index {index} is out of bounds: should be greater than or equal to 0." + raise ValueError(msg) + + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.list.get(index) + ) + + def min(self) -> SeriesT: + """Compute the min value of the lists in the array. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([[1], [3, 4, None]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.list.min().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [i64] + [ + 1 + 3 + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.list.min() + ) + + def max(self) -> SeriesT: + """Compute the max value of the lists in the array. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array([[[1], [3, 4, None]]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.list.max().to_native() # doctest: +ELLIPSIS + + [ + [ + 1, + 4 + ] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.list.max() + ) + + def mean(self) -> SeriesT: + """Compute the mean value of the lists in the array. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([[1], [3, 4, None]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.list.mean().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [f64] + [ + 1.0 + 3.5 + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.list.mean() + ) + + def median(self) -> SeriesT: + """Compute the median value of the lists in the array. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array([[[1], [3, 4, None]]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.list.median().to_native() # doctest: +ELLIPSIS + + [ + [ + 1, + 3 + ] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.list.median() + ) + + def sum(self) -> SeriesT: + """Compute the sum value of the lists in the array. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([[1], [3, 4, None]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.list.sum().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [i64] + [ + 1 + 7 + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.list.sum() + ) + + def sort(self, *, descending: bool = False, nulls_last: bool = False) -> SeriesT: + """Sort the lists of the series. + + Arguments: + descending: Sort in descending order. + nulls_last: Place null values last. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series([[2, -1, 1], [3, -4, None]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.list.sort().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [list[i64]] + [ + [-1, 1, 2] + [null, -4, 3] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.list.sort( + descending=descending, nulls_last=nulls_last + ) + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/series_str.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/series_str.py new file mode 100644 index 0000000000000000000000000000000000000000..bd26fe682a26dd1a123d15458cbfa630dfc94719 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/series_str.py @@ -0,0 +1,519 @@ +from __future__ import annotations + +from typing import Any, Generic + +from narwhals.dependencies import is_narwhals_series +from narwhals.typing import SeriesT + + +class SeriesStringNamespace(Generic[SeriesT]): + def __init__(self, series: SeriesT) -> None: + self._narwhals_series = series + + def len_chars(self) -> SeriesT: + r"""Return the length of each string as the number of characters. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series(["foo", "345", None]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.len_chars().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (3,) + Series: '' [u32] + [ + 3 + 3 + null + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.len_chars() + ) + + def _extract_compliant(self, arg: Any) -> Any: + return arg._compliant_series if is_narwhals_series(arg) else arg + + def replace( + self, pattern: str, value: str | SeriesT, *, literal: bool = False, n: int = 1 + ) -> SeriesT: + r"""Replace first matching regex/literal substring with a new string value. + + Arguments: + pattern: A valid regular expression pattern. + value: String that will replace the matched substring. + literal: Treat `pattern` as a literal string. + n: Number of matches to replace. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series(["123abc", "abc abc123"]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.replace("abc", "").to_native() + 0 123 + 1 abc123 + dtype: str + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.replace( + self._extract_compliant(value), pattern=pattern, literal=literal, n=n + ) + ) + + def replace_all( + self, pattern: str, value: str | SeriesT, *, literal: bool = False + ) -> SeriesT: + r"""Replace all matching regex/literal substring with a new string value. + + Arguments: + pattern: A valid regular expression pattern. + value: String that will replace the matched substring. + literal: Treat `pattern` as a literal string. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series(["123abc", "abc abc123"]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.replace_all("abc", "").to_native() + 0 123 + 1 123 + dtype: str + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.replace_all( + self._extract_compliant(value), pattern, literal=literal + ) + ) + + def strip_chars(self, characters: str | None = None) -> SeriesT: + r"""Remove leading and trailing characters. + + Arguments: + characters: The set of characters to be removed. All combinations of this set of characters will be stripped from the start and end of the string. If set to None (default), all leading and trailing whitespace is removed instead. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series(["apple", "\nmango"]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.strip_chars().to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [str] + [ + "apple" + "mango" + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.strip_chars(characters) + ) + + def starts_with(self, prefix: str) -> SeriesT: + r"""Check if string values start with a substring. + + Arguments: + prefix: prefix substring + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series(["apple", "mango", None]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.starts_with("app").to_native() + 0 True + 1 False + 2 False + dtype: bool + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.starts_with(prefix) + ) + + def ends_with(self, suffix: str) -> SeriesT: + r"""Check if string values end with a substring. + + Arguments: + suffix: suffix substring + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series(["apple", "mango", None]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.ends_with("ngo").to_native() + 0 False + 1 True + 2 False + dtype: bool + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.ends_with(suffix) + ) + + def contains(self, pattern: str | SeriesT, *, literal: bool = False) -> SeriesT: + r"""Check if string contains a substring that matches a pattern. + + Arguments: + pattern: A Character sequence, valid regular expression pattern, or another + Series. + literal: If True, treats the pattern as a literal string. + If False, assumes the pattern is a regular expression. + + Warning: + Passing a Series as `pattern` is only supported by Polars. Other backends + will raise a `TypeError`. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array([["cat", "dog", "rabbit and parrot"]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.contains("cat|parrot").to_native() # doctest: +ELLIPSIS + + [ + [ + true, + false, + true + ] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.contains( + self._extract_compliant(pattern), literal=literal + ) + ) + + def slice(self, offset: int, length: int | None = None) -> SeriesT: + r"""Create subslices of the string values of a Series. + + Arguments: + offset: Start index. Negative indexing is supported. + length: Length of the slice. If set to `None` (default), the slice is taken to the + end of the string. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series(["pear", None, "papaya"]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.slice(4, 3).to_native() # doctest: +NORMALIZE_WHITESPACE + 0 + 1 NaN + 2 ya + dtype: str + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.slice( + offset=offset, length=length + ) + ) + + def split(self, by: str) -> SeriesT: + r"""Split the string values of a Series by a substring. + + Arguments: + by: Substring to split by. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series(["foo bar", "foo_bar"]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.split("_").to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [list[str]] + [ + ["foo bar"] + ["foo", "bar"] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.split(by=by) + ) + + def head(self, n: int = 5) -> SeriesT: + r"""Take the first n elements of each string. + + Arguments: + n: Number of elements to take. Negative indexing is supported (see note (1.)) + + Notes: + 1. When the `n` input is negative, `head` returns characters up to the n-th from the end of the string. + For example, if `n = -3`, then all characters except the last three are returned. + 2. If the length of the string has fewer than `n` characters, the full string is returned. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array([["taata", "taatatata", "zukkyun"]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.head().to_native() # doctest: +ELLIPSIS + + [ + [ + "taata", + "taata", + "zukky" + ] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.slice(offset=0, length=n) + ) + + def tail(self, n: int = 5) -> SeriesT: + r"""Take the last n elements of each string. + + Arguments: + n: Number of elements to take. Negative indexing is supported (see note (1.)) + + Notes: + 1. When the `n` input is negative, `tail` returns characters starting from the n-th from the beginning of + the string. For example, if `n = -3`, then all characters except the first three are returned. + 2. If the length of the string has fewer than `n` characters, the full string is returned. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array([["taata", "taatatata", "zukkyun"]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.tail().to_native() # doctest: +ELLIPSIS + + [ + [ + "taata", + "atata", + "kkyun" + ] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.slice(offset=-n, length=None) + ) + + def to_uppercase(self) -> SeriesT: + r"""Transform string to uppercase variant. + + Notes: + The PyArrow backend will convert 'ß' to 'ẞ' instead of 'SS'. + For more info see: https://github.com/apache/arrow/issues/34599 + There may be other unicode-edge-case-related variations across implementations. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series(["apple", None]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.to_uppercase().to_native() + 0 APPLE + 1 NaN + dtype: str + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.to_uppercase() + ) + + def to_lowercase(self) -> SeriesT: + r"""Transform string to lowercase variant. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series(["APPLE", None]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.to_lowercase().to_native() + 0 apple + 1 NaN + dtype: str + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.to_lowercase() + ) + + def to_datetime(self, format: str | None = None) -> SeriesT: + """Parse Series with strings to a Series with Datetime dtype. + + Notes: + - pandas defaults to nanosecond time unit, Polars to microsecond. + Prior to pandas 2.0, nanoseconds were the only time unit supported + in pandas, with no ability to set any other one. The ability to + set the time unit in pandas, if the version permits, will arrive. + - timezone-aware strings are all converted to and parsed as UTC. + + Warning: + As different backends auto-infer format in different ways, if `format=None` + there is no guarantee that the result will be equal. + + Arguments: + format: Format to use for conversion. If set to None (default), the format is + inferred from the data. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series(["2020-01-01", "2020-01-02"]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.to_datetime( + ... format="%Y-%m-%d" + ... ).to_native() # doctest: +NORMALIZE_WHITESPACE + shape: (2,) + Series: '' [datetime[μs]] + [ + 2020-01-01 00:00:00 + 2020-01-02 00:00:00 + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.to_datetime(format=format) + ) + + def to_date(self, format: str | None = None) -> SeriesT: + """Convert to date dtype. + + Warning: + As different backends auto-infer format in different ways, if `format=None` + there is no guarantee that the result will be equal. + + Arguments: + format: Format to use for conversion. If set to None (default), the format is + inferred from the data. + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array([["2020-01-01", "2020-01-02"]]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.to_date(format="%Y-%m-%d").to_native() # doctest: +ELLIPSIS + + [ + [ + 2020-01-01, + 2020-01-02 + ] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.to_date(format=format) + ) + + def to_titlecase(self) -> SeriesT: + """Modify strings to their titlecase equivalent. + + Notes: + This is a form of case transform where the first letter of each word is + capitalized, with the rest of the word in lowercase. + + Word boundaries are defined by non-**alphabetic** characters, matching the + behavior of [`str.title`](https://docs.python.org/3/library/stdtypes.html#str.title) + + Examples: + >>> import pyarrow as pa + >>> import narwhals as nw + >>> s_native = pa.chunked_array( + ... [ + ... [ + ... "'e.t. phone home'", + ... "you talkin' to me?", + ... "to infinity,and BEYOND!", + ... ] + ... ] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.to_titlecase().to_native() # doctest: +ELLIPSIS + + [ + [ + "'E.T. Phone Home'", + "You Talkin' To Me?", + "To Infinity,And Beyond!" + ] + ] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.to_titlecase() + ) + + def zfill(self, width: int) -> SeriesT: + r"""Pad strings with zeros on the left. + + Arguments: + width: The target width of the string. If the string is shorter than this width, it will be padded with zeros on the left. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> s_native = pd.Series(["+1", "-23", "456", "123456"]) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.str.zfill(5).to_native() + 0 +0001 + 1 -0023 + 2 00456 + 3 123456 + dtype: str + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.zfill(width) + ) + + def pad_start(self, length: int, fill_char: str = " ") -> SeriesT: + """Pad the start of the string until it reaches the given length. + + Arguments: + length: Pad the string until it reaches this length. Strings with + length equal to or greater than this value are returned as-is. + fill_char: The character to pad the string with. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": ["cow", "monkey", "hippopotamus", None]}) + >>> df = nw.from_native(df_native) + >>> df["a"].str.pad_start(8, "*") + ┌───────────────────┐ + | Narwhals Series | + |-------------------| + |0 *****cow | + |1 **monkey | + |2 hippopotamus | + |3 NaN | + |Name: a, dtype: str| + └───────────────────┘ + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.pad_start( + length=length, fill_char=fill_char + ) + ) + + def pad_end(self, length: int, fill_char: str = " ") -> SeriesT: + """Pad the end of the string until it reaches the given length. + + Arguments: + length: Pad the string until it reaches this length. Strings with + length equal to or greater than this value are returned as-is. + fill_char: The character to pad the string with. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> df_native = pd.DataFrame({"a": ["cow", "monkey", "hippopotamus", None]}) + >>> df = nw.from_native(df_native) + >>> df["a"].str.pad_end(8, "*") + ┌───────────────────┐ + | Narwhals Series | + |-------------------| + |0 cow***** | + |1 monkey** | + |2 hippopotamus | + |3 NaN | + |Name: a, dtype: str| + └───────────────────┘ + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.str.pad_end( + length=length, fill_char=fill_char + ) + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/series_struct.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/series_struct.py new file mode 100644 index 0000000000000000000000000000000000000000..5a2851d6f08d620fcdab6d2b8d92ce1fddb78bfc --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/series_struct.py @@ -0,0 +1,30 @@ +from __future__ import annotations + +from typing import Generic + +from narwhals.typing import SeriesT + + +class SeriesStructNamespace(Generic[SeriesT]): + def __init__(self, series: SeriesT) -> None: + self._narwhals_series = series + + def field(self, name: str) -> SeriesT: + r"""Retrieve a Struct field as a new expression. + + Arguments: + name: Name of the struct field to retrieve. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> s_native = pl.Series( + ... [{"id": "0", "name": "john"}, {"id": "1", "name": "jane"}] + ... ) + >>> s = nw.from_native(s_native, series_only=True) + >>> s.struct.field("name").to_list() + ['john', 'jane'] + """ + return self._narwhals_series._with_compliant( + self._narwhals_series._compliant_series.struct.field(name) + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/sql.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/sql.py new file mode 100644 index 0000000000000000000000000000000000000000..cd503f0dcd9ac22cd70f823ee829bce797a88ede --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/sql.py @@ -0,0 +1,105 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Literal + +from narwhals._duckdb.utils import DeferredTimeZone, narwhals_to_native_dtype +from narwhals.dataframe import LazyFrame +from narwhals.translate import from_native +from narwhals.utils import Version + +if TYPE_CHECKING: + from narwhals._compliant.typing import CompliantLazyFrameAny + from narwhals.typing import IntoSchema + +try: + import duckdb # ignore-banned-import +except ImportError as _exc: # pragma: no cover + msg = ( + "`narwhals.sql` requires DuckDB to be installed.\n\n" + "Hint: run `pip install -U narwhals[sql]`" + ) + raise ModuleNotFoundError(msg) from _exc + +CONN = duckdb.connect() +TZ = DeferredTimeZone( + CONN.sql("select value from duckdb_settings() where name = 'TimeZone'") +) + + +class SQLTable(LazyFrame[duckdb.DuckDBPyRelation]): + """A LazyFrame with an additional `to_sql` method.""" + + def __init__( + self, df: CompliantLazyFrameAny, level: Literal["full", "interchange", "lazy"] + ) -> None: + super().__init__(df, level=level) + + def to_sql(self, *, pretty: bool = False) -> str: + """Convert to SQL query. + + Arguments: + pretty: Whether to pretty-print SQL query. If `True`, requires `sqlparse` + to be installed. + + Examples: + >>> import narwhals as nw + >>> from narwhals.sql import table + >>> schema = {"date": nw.Date, "price": nw.Int64, "symbol": nw.String} + >>> assets = table("assets", schema) + >>> result = assets.filter(nw.col("price") > 100) + >>> print(result.to_sql()) + SELECT * FROM main.assets WHERE (price > 100) + """ + sql_query = self.to_native().sql_query() + if not pretty: + return sql_query + try: + import sqlparse + except ImportError as _exc: # pragma: no cover + msg = ( + "`SQLTable.to_sql` with `pretty=True`" + "requires `sqlparse` to be installed.\n\n" + "Hint: run `pip install -U narwhals[sql]`" + ) + raise ModuleNotFoundError(msg) from _exc + return sqlparse.format(sql_query, reindent=True, keyword_case="upper") # type: ignore[no-any-return] + + +def table(name: str, schema: IntoSchema) -> SQLTable: + """Generate standalone LazyFrame which you can use to generate SQL. + + Note that this requires DuckDB to be installed. + + Parameters: + name: Table name. + schema: Table schema. + + Examples: + >>> import narwhals as nw + >>> from narwhals.sql import table + >>> schema = {"date": nw.Date, "price": nw.List(nw.Int64), "symbol": nw.String} + >>> table("t", schema) + ┌────────────────────────────┐ + | Narwhals LazyFrame | + |----------------------------| + |┌──────┬─────────┬─────────┐| + |│ date │ price │ symbol │| + |│ date │ int64[] │ varchar │| + |└──────┴─────────┴─────────┘| + | 0 rows | + └────────────────────────────┘ + """ + column_mapping = { + col: narwhals_to_native_dtype(dtype, Version.MAIN, TZ) + for col, dtype in schema.items() + } + dtypes = ", ".join(f'"{col}" {dtype}' for col, dtype in column_mapping.items()) + CONN.sql(f""" + CREATE TABLE "{name}" + ({dtypes}); + """) + lf = from_native(CONN.table(name)) + return SQLTable(lf._compliant_frame, level=lf._level) + + +__all__ = ["table"] diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/.___init__.py 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b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/._typing.py differ diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/__init__.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..eca46e0563d7b8f46d27168b6d494bd63d6f8147 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/__init__.py @@ -0,0 +1,1156 @@ +from __future__ import annotations + +from functools import wraps +from typing import TYPE_CHECKING, Any, Callable, Final, Literal, cast, overload + +import narwhals as nw +from narwhals import exceptions, functions as nw_f +from narwhals._exceptions import issue_warning +from narwhals._expression_parsing import ExprKind, ExprNode, is_expr +from narwhals._typing_compat import TypeVar, assert_never +from narwhals._utils import ( + Implementation, + Version, + deprecate_native_namespace, + generate_temporary_column_name, + inherit_doc, + is_ordered_categorical, + maybe_align_index, + maybe_convert_dtypes, + maybe_get_index, + maybe_reset_index, + maybe_set_index, + validate_strict_and_pass_though, +) +from narwhals.dataframe import DataFrame as NwDataFrame, LazyFrame as NwLazyFrame +from narwhals.exceptions import InvalidIntoExprError, NarwhalsUnstableWarning +from narwhals.expr import Expr as NwExpr +from narwhals.functions import _new_series_impl, concat, show_versions +from narwhals.schema import Schema as NwSchema +from narwhals.series import Series as NwSeries +from narwhals.stable.v1 import dependencies, dtypes, selectors +from narwhals.stable.v1.dtypes import ( + Array, + Binary, + Boolean, + Categorical, + Date, + Datetime, + Decimal, + Duration, + Enum, + Field, + Float32, + Float64, + Int8, + Int16, + Int32, + Int64, + Int128, + List, + Object, + String, + Struct, + Time, + UInt8, + UInt16, + UInt32, + UInt64, + UInt128, + Unknown, +) +from narwhals.stable.v1.typing import ( + DataFrameT, + IntoDataFrameT, + IntoFrame, + IntoLazyFrameT, + IntoSeries, + IntoSeriesT, + LazyFrameT, + SeriesT, +) +from narwhals.translate import _from_native_impl, get_native_namespace, to_py_scalar + +if TYPE_CHECKING: + from collections.abc import Iterable, Mapping, Sequence + from types import ModuleType + + from typing_extensions import ParamSpec, Self, Unpack + + from narwhals._expression_parsing import ExprMetadata + from narwhals._translate import ( + AllowAnyStrictV1 as AllowAnyStrict, + AllowAnyV1 as AllowAny, + AllowLazyStrictV1 as AllowLazyStrict, + AllowLazyV1 as AllowLazy, + AllowSeriesStrictV1 as AllowSeriesStrict, + AllowSeriesV1 as AllowSeries, + ExcludeSeriesStrictV1 as ExcludeSeriesStrict, + ExcludeSeriesV1 as ExcludeSeries, + IntoArrowTable, + OnlyEagerOrInterchange, + OnlyEagerOrInterchangeStrict, + OnlySeriesStrictV1 as OnlySeriesStrict, + OnlySeriesV1 as OnlySeries, + PassThroughUnknownV1 as PassThroughUnknown, + StrictUnknownV1 as StrictUnknown, + ) + from narwhals._typing import ( + Arrow, + Backend, + EagerAllowed, + IntoBackend, + LazyAllowed, + Pandas, + Polars, + ) + from narwhals.dataframe import MultiColSelector, MultiIndexSelector + from narwhals.dtypes import DType + from narwhals.typing import ( + FileSource, + IntoDType, + IntoExpr, + IntoSchema, + NonNestedLiteral, + PythonLiteral, + SingleColSelector, + SingleIndexSelector, + _1DArray, + _2DArray, + ) + + T = TypeVar("T", default=Any) + P = ParamSpec("P") + R = TypeVar("R") + + +# NOTE legit +class DataFrame(NwDataFrame[IntoDataFrameT]): # type: ignore[type-var] + _version = Version.V1 + + @inherit_doc(NwDataFrame) + def __init__(self, df: Any, *, level: Literal["full", "lazy", "interchange"]) -> None: + assert df._version is Version.V1 # noqa: S101 + super().__init__(df, level=level) + + # We need to override any method which don't return Self so that type + # annotations are correct. + + @classmethod + def from_arrow( + cls, native_frame: IntoArrowTable, *, backend: IntoBackend[EagerAllowed] + ) -> DataFrame[Any]: + result = super().from_arrow(native_frame, backend=backend) + return cast("DataFrame[Any]", result) + + @classmethod + def from_dict( + cls, + data: Mapping[str, Any], + schema: IntoSchema | Mapping[str, DType | None] | None = None, + *, + backend: IntoBackend[EagerAllowed] | None = None, + ) -> DataFrame[Any]: + result = super().from_dict(data, schema, backend=backend) + return cast("DataFrame[Any]", result) + + @classmethod + def from_dicts( + cls, + data: Sequence[Any], + schema: IntoSchema | Mapping[str, DType | None] | None = None, + *, + backend: IntoBackend[EagerAllowed], + ) -> DataFrame[Any]: + result = super().from_dicts(data, schema, backend=backend) + return cast("DataFrame[Any]", result) + + @classmethod + def from_numpy( + cls, + data: _2DArray, + schema: Mapping[str, DType] | Schema | Sequence[str] | None = None, + *, + backend: IntoBackend[EagerAllowed], + ) -> DataFrame[Any]: + result = super().from_numpy(data, schema, backend=backend) + return cast("DataFrame[Any]", result) + + @property + def _series(self) -> type[Series[Any]]: + return cast("type[Series[Any]]", Series) + + @property + def _lazyframe(self) -> type[LazyFrame[Any]]: + return cast("type[LazyFrame[Any]]", LazyFrame) + + @overload + def __getitem__(self, item: tuple[SingleIndexSelector, SingleColSelector]) -> Any: ... + + @overload + def __getitem__( # type: ignore[overload-overlap] + self, item: str | tuple[MultiIndexSelector, SingleColSelector] + ) -> Series[Any]: ... + + @overload + def __getitem__( + self, + item: ( + SingleIndexSelector + | MultiIndexSelector + | MultiColSelector + | tuple[SingleIndexSelector, MultiColSelector] + | tuple[MultiIndexSelector, MultiColSelector] + ), + ) -> Self: ... + def __getitem__( + self, + item: ( + SingleIndexSelector + | SingleColSelector + | MultiColSelector + | MultiIndexSelector + | tuple[SingleIndexSelector, SingleColSelector] + | tuple[SingleIndexSelector, MultiColSelector] + | tuple[MultiIndexSelector, SingleColSelector] + | tuple[MultiIndexSelector, MultiColSelector] + ), + ) -> Series[Any] | Self | Any: + return super().__getitem__(item) + + def get_column(self, name: str) -> Series: + # Type checkers complain that `nw.Series` is not assignable to `nw.v1.stable.Series`. + # However the return type actually is `nw.v1.stable.Series`, check `tests/v1_test.py`. + return super().get_column(name) # type: ignore[return-value] + + def lazy( + self, + backend: IntoBackend[LazyAllowed] | None = None, + *, + session: Any | None = None, + ) -> LazyFrame[Any]: + return _stableify(super().lazy(backend=backend, session=session)) + + @overload # type: ignore[override] + def to_dict(self, *, as_series: Literal[True] = ...) -> dict[str, Series[Any]]: ... + @overload + def to_dict(self, *, as_series: Literal[False]) -> dict[str, list[Any]]: ... + @overload + def to_dict( + self, *, as_series: bool = True + ) -> dict[str, Series[Any]] | dict[str, list[Any]]: ... + def to_dict( # pyright: ignore[reportIncompatibleMethodOverride] + self, *, as_series: bool = True + ) -> dict[str, Series[Any]] | dict[str, list[Any]]: + # Type checkers complain that `nw.Series` is not assignable to `nw.v1.stable.Series`. + # However the return type actually is `nw.v1.stable.Series`, check `tests/v1_test.py::test_to_dict_as_series`. + return super().to_dict(as_series=as_series) # type: ignore[return-value] + + def is_duplicated(self) -> Series[Any]: + return _stableify(super().is_duplicated()) + + def is_unique(self) -> Series[Any]: + return _stableify(super().is_unique()) + + def _l1_norm(self) -> Self: + # Private, just used to test the stable API. + return self.select(all()._l1_norm()) + + +class LazyFrame(NwLazyFrame[IntoLazyFrameT]): + _version = Version.V1 + + @inherit_doc(NwLazyFrame) + def __init__(self, df: Any, *, level: Literal["full", "lazy", "interchange"]) -> None: + assert df._version is Version.V1 # noqa: S101 + super().__init__(df, level=level) + + @property + def _dataframe(self) -> type[DataFrame[Any]]: + return DataFrame + + def _validate_metadata(self, metadata: ExprMetadata) -> None: + # After v1, we raise for order-dependent operations. + pass + + def collect( + self, backend: IntoBackend[Polars | Pandas | Arrow] | None = None, **kwargs: Any + ) -> DataFrame[Any]: + return _stableify(super().collect(backend=backend, **kwargs)) + + def _l1_norm(self) -> Self: + # Private, just used to test the stable API. + return self.select(all()._l1_norm()) + + def tail(self, n: int = 5) -> Self: + r"""Get the last `n` rows.""" + return super().tail(n) + + def gather_every(self, n: int, offset: int = 0) -> Self: + r"""Take every nth row in the DataFrame and return as a new DataFrame. + + Arguments: + n: Gather every *n*-th row. + offset: Starting index. + """ + return self._with_compliant( + self._compliant_frame.gather_every(n=n, offset=offset) # type: ignore[attr-defined] + ) + + def with_row_index( + self, name: str = "index", *, order_by: str | Sequence[str] | None = None + ) -> Self: + order_by_ = [order_by] if isinstance(order_by, str) else order_by + return self._with_compliant( + self._compliant_frame.with_row_index( + name=name, + order_by=order_by_, # type: ignore[arg-type] + ) + ) + + +class Series(NwSeries[IntoSeriesT]): + _version = Version.V1 + + @inherit_doc(NwSeries) + def __init__( + self, series: Any, *, level: Literal["full", "lazy", "interchange"] + ) -> None: + assert series._version is Version.V1 # noqa: S101 + super().__init__(series, level=level) + + # We need to override any method which don't return Self so that type + # annotations are correct. + + @classmethod + def from_numpy( + cls, + name: str, + values: _1DArray, + dtype: IntoDType | None = None, + *, + backend: IntoBackend[EagerAllowed], + ) -> Series[Any]: + result = super().from_numpy(name, values, dtype, backend=backend) + return cast("Series[Any]", result) + + @classmethod + def from_iterable( + cls, + name: str, + values: Iterable[Any], + dtype: IntoDType | None = None, + *, + backend: IntoBackend[EagerAllowed], + ) -> Series[Any]: + result = super().from_iterable(name, values, dtype, backend=backend) + return cast("Series[Any]", result) + + @property + def _dataframe(self) -> type[DataFrame[Any]]: + return DataFrame + + def to_frame(self) -> DataFrame[Any]: + return _stableify(super().to_frame()) + + def value_counts( + self, + *, + sort: bool = False, + parallel: bool = False, + name: str | None = None, + normalize: bool = False, + ) -> DataFrame[Any]: + return _stableify( + super().value_counts( + sort=sort, parallel=parallel, name=name, normalize=normalize + ) + ) + + def hist( + self, + bins: list[float] | None = None, + *, + bin_count: int | None = None, + include_breakpoint: bool = True, + ) -> DataFrame[Any]: + msg = ( + "`Series.hist` is being called from the stable API although considered " + "an unstable feature." + ) + issue_warning(msg, NarwhalsUnstableWarning) + return _stableify( + super().hist( + bins=bins, bin_count=bin_count, include_breakpoint=include_breakpoint + ) + ) + + def any_value(self, *, ignore_nulls: bool = False) -> PythonLiteral: + msg = ( + "`Series.any_value` is being called from the stable API although considered " + "an unstable feature." + ) + issue_warning(msg, NarwhalsUnstableWarning) + return super().any_value(ignore_nulls=ignore_nulls) + + +class Expr(NwExpr): + def _l1_norm(self) -> Self: + return super()._taxicab_norm() + + def head(self, n: int = 10) -> Self: + r"""Get the first `n` rows.""" + return self._append_node(ExprNode(ExprKind.ORDERABLE_FILTRATION, "head", n=n)) + + def tail(self, n: int = 10) -> Self: + r"""Get the last `n` rows.""" + return self._append_node(ExprNode(ExprKind.ORDERABLE_FILTRATION, "tail", n=n)) + + def gather_every(self, n: int, offset: int = 0) -> Self: + r"""Take every nth value in the Series and return as new Series. + + Arguments: + n: Gather every *n*-th row. + offset: Starting index. + """ + return self._append_node( + ExprNode(ExprKind.ORDERABLE_FILTRATION, "gather_every", n=n, offset=offset) + ) + + def unique(self, *, maintain_order: bool | None = None) -> Self: + """Return unique values of this expression.""" + if maintain_order is not None: + msg = ( + "`maintain_order` has no effect and is only kept around for backwards-compatibility. " + "You can safely remove this argument." + ) + issue_warning(msg, UserWarning) + return self._append_node(ExprNode(ExprKind.FILTRATION, "unique")) + + def sort(self, *, descending: bool = False, nulls_last: bool = False) -> Self: + """Sort this column. Place null values first.""" + return self._append_node( + ExprNode( + ExprKind.WINDOW, "sort", descending=descending, nulls_last=nulls_last + ) + ) + + def arg_max(self) -> Self: + """Returns the index of the maximum value.""" + return self._append_node(ExprNode(ExprKind.ORDERABLE_AGGREGATION, "arg_max")) + + def arg_min(self) -> Self: + """Returns the index of the minimum value.""" + return self._append_node(ExprNode(ExprKind.ORDERABLE_AGGREGATION, "arg_min")) + + def arg_true(self) -> Self: + """Find elements where boolean expression is True.""" + return self._append_node(ExprNode(ExprKind.ORDERABLE_FILTRATION, "arg_true")) + + def first(self) -> Self: # type: ignore[override] + """Get the first value.""" + return self._append_node(ExprNode(ExprKind.ORDERABLE_AGGREGATION, "first")) + + def last(self) -> Self: # type: ignore[override] + """Get the last value.""" + return self._append_node(ExprNode(ExprKind.ORDERABLE_AGGREGATION, "last")) + + def sample( + self, + n: int | None = None, + *, + fraction: float | None = None, + with_replacement: bool = False, + seed: int | None = None, + ) -> Self: + """Sample randomly from this expression. + + Arguments: + n: Number of items to return. Cannot be used with fraction. + fraction: Fraction of items to return. Cannot be used with n. + with_replacement: Allow values to be sampled more than once. + seed: Seed for the random number generator. If set to None (default), a random + seed is generated for each sample operation. + """ + return self._append_node( + ExprNode( + ExprKind.FILTRATION, + "sample", + n=n, + fraction=fraction, + with_replacement=with_replacement, + seed=seed, + ) + ) + + def any_value(self, *, ignore_nulls: bool = False) -> Self: + msg = ( + "`Expr.any_value` is being called from the stable API although considered " + "an unstable feature." + ) + issue_warning(msg, NarwhalsUnstableWarning) + return self._append_node( + ExprNode(ExprKind.AGGREGATION, "any_value", ignore_nulls=ignore_nulls) + ) + + +class Schema(NwSchema): + _version = Version.V1 + + @inherit_doc(NwSchema) + def __init__( + self, schema: Mapping[str, DType] | Iterable[tuple[str, DType]] | None = None + ) -> None: + super().__init__(schema) + + +@overload +def _stableify(obj: NwDataFrame[IntoDataFrameT]) -> DataFrame[IntoDataFrameT]: ... # type: ignore[type-var] +@overload +def _stableify(obj: NwLazyFrame[IntoLazyFrameT]) -> LazyFrame[IntoLazyFrameT]: ... +@overload +def _stableify(obj: NwSeries[IntoSeriesT]) -> Series[IntoSeriesT]: ... +@overload +def _stableify(obj: NwExpr) -> Expr: ... + + +def _stableify( + obj: NwDataFrame[IntoDataFrameT] # type: ignore[type-var] + | NwLazyFrame[IntoLazyFrameT] + | NwSeries[IntoSeriesT] + | NwExpr, +) -> DataFrame[IntoDataFrameT] | LazyFrame[IntoLazyFrameT] | Series[IntoSeriesT] | Expr: + if isinstance(obj, NwDataFrame): + return DataFrame(obj._compliant_frame._with_version(Version.V1), level=obj._level) + if isinstance(obj, NwLazyFrame): + return LazyFrame(obj._compliant_frame._with_version(Version.V1), level=obj._level) + if isinstance(obj, NwSeries): + return Series(obj._compliant_series._with_version(Version.V1), level=obj._level) + if isinstance(obj, NwExpr): + return Expr(*obj._nodes) + assert_never(obj) + + +@overload +def from_native(native_object: SeriesT, **kwds: Unpack[OnlySeries]) -> SeriesT: ... +@overload +def from_native(native_object: SeriesT, **kwds: Unpack[OnlySeriesStrict]) -> SeriesT: ... +@overload +def from_native(native_object: SeriesT, **kwds: Unpack[AllowSeries]) -> SeriesT: ... +@overload +def from_native(native_object: SeriesT, **kwds: Unpack[AllowSeriesStrict]) -> SeriesT: ... +@overload +def from_native( + native_object: DataFrameT, **kwds: Unpack[ExcludeSeries] +) -> DataFrameT: ... +@overload +def from_native( + native_object: DataFrameT, **kwds: Unpack[ExcludeSeriesStrict] +) -> DataFrameT: ... +@overload +def from_native(native_object: LazyFrameT, **kwds: Unpack[AllowLazy]) -> LazyFrameT: ... +@overload +def from_native( + native_object: LazyFrameT, **kwds: Unpack[AllowLazyStrict] +) -> LazyFrameT: ... +@overload +def from_native( + native_object: IntoDataFrameT, **kwds: Unpack[OnlyEagerOrInterchange] +) -> DataFrame[IntoDataFrameT]: ... +@overload +def from_native( + native_object: IntoDataFrameT, **kwds: Unpack[OnlyEagerOrInterchangeStrict] +) -> DataFrame[IntoDataFrameT]: ... +@overload +def from_native( + native_object: IntoDataFrameT, **kwds: Unpack[ExcludeSeries] +) -> DataFrame[IntoDataFrameT]: ... +@overload +def from_native( + native_object: IntoDataFrameT, **kwds: Unpack[ExcludeSeriesStrict] +) -> DataFrame[IntoDataFrameT]: ... +@overload +def from_native( + native_object: IntoSeriesT, **kwds: Unpack[OnlySeries] +) -> Series[IntoSeriesT]: ... +@overload +def from_native( + native_object: IntoSeriesT, **kwds: Unpack[OnlySeriesStrict] +) -> Series[IntoSeriesT]: ... +@overload +def from_native( + native_object: IntoDataFrameT | IntoSeriesT, **kwds: Unpack[AllowSeries] +) -> DataFrame[IntoDataFrameT] | Series[IntoSeriesT]: ... +@overload +def from_native( + native_object: IntoDataFrameT | IntoSeriesT, **kwds: Unpack[AllowSeriesStrict] +) -> DataFrame[IntoDataFrameT] | Series[IntoSeriesT]: ... +@overload +def from_native( + native_object: IntoLazyFrameT, **kwds: Unpack[AllowLazy] +) -> LazyFrame[IntoLazyFrameT]: ... +@overload +def from_native( + native_object: IntoLazyFrameT, **kwds: Unpack[AllowLazyStrict] +) -> LazyFrame[IntoLazyFrameT]: ... +@overload +def from_native( + native_object: IntoDataFrameT | IntoLazyFrameT | IntoSeriesT, **kwds: Unpack[AllowAny] +) -> DataFrame[IntoDataFrameT] | LazyFrame[IntoLazyFrameT] | Series[IntoSeriesT]: ... +@overload +def from_native( + native_object: IntoDataFrameT | IntoLazyFrameT | IntoSeriesT, + **kwds: Unpack[AllowAnyStrict], +) -> DataFrame[IntoDataFrameT] | LazyFrame[IntoLazyFrameT] | Series[IntoSeriesT]: ... +@overload +def from_native(native_object: T, **kwds: Unpack[PassThroughUnknown]) -> T: ... +@overload +def from_native(native_object: T, **kwds: Unpack[StrictUnknown]) -> T: ... + + +# All params passed in as variables +@overload +def from_native( + native_object: Any, + *, + pass_through: bool, + eager_only: bool, + eager_or_interchange_only: bool = False, + series_only: bool, + allow_series: bool | None, +) -> Any: ... + + +def from_native( + native_object: IntoDataFrameT + | IntoLazyFrameT + | IntoFrame + | IntoSeriesT + | IntoSeries + | T, + *, + strict: bool | None = None, + pass_through: bool | None = None, + eager_only: bool = False, + eager_or_interchange_only: bool = False, + series_only: bool = False, + allow_series: bool | None = None, + **kwds: Any, +) -> LazyFrame[IntoLazyFrameT] | DataFrame[IntoDataFrameT] | Series[IntoSeriesT] | T: + """Convert `native_object` to Narwhals Dataframe, Lazyframe, or Series. + + See `narwhals.from_native` for full docstring. Note that `native_namespace` is + an is the same as `backend` but only accepts module types - for new code, we + recommend using `backend`, as that's available beyond just `narwhals.stable.v1`. + """ + # Early returns + if isinstance(native_object, (DataFrame, LazyFrame)) and not series_only: + return native_object + if isinstance(native_object, Series) and (series_only or allow_series): + return native_object + + pass_through = validate_strict_and_pass_though( + strict, pass_through, pass_through_default=False + ) + if kwds: + msg = f"from_native() got an unexpected keyword argument {next(iter(kwds))!r}" + raise TypeError(msg) + + return _from_native_impl( # type: ignore[no-any-return] + native_object, + pass_through=pass_through, + eager_only=eager_only, + eager_or_interchange_only=eager_or_interchange_only, + series_only=series_only, + allow_series=allow_series, + version=Version.V1, + ) + + +@overload +def to_native( + narwhals_object: DataFrame[IntoDataFrameT], *, strict: Literal[True] = ... +) -> IntoDataFrameT: ... +@overload +def to_native( + narwhals_object: LazyFrame[IntoLazyFrameT], *, strict: Literal[True] = ... +) -> IntoLazyFrameT: ... +@overload +def to_native( + narwhals_object: Series[IntoSeriesT], *, strict: Literal[True] = ... +) -> IntoSeriesT: ... +@overload +def to_native(narwhals_object: Any, *, strict: bool) -> Any: ... +@overload +def to_native( + narwhals_object: DataFrame[IntoDataFrameT], *, pass_through: Literal[False] = ... +) -> IntoDataFrameT: ... +@overload +def to_native( + narwhals_object: LazyFrame[IntoLazyFrameT], *, pass_through: Literal[False] = ... +) -> IntoLazyFrameT: ... +@overload +def to_native( + narwhals_object: Series[IntoSeriesT], *, pass_through: Literal[False] = ... +) -> IntoSeriesT: ... +@overload +def to_native(narwhals_object: Any, *, pass_through: bool) -> Any: ... + + +def to_native( + narwhals_object: DataFrame[IntoDataFrameT] + | LazyFrame[IntoLazyFrameT] + | Series[IntoSeriesT], + *, + strict: bool | None = None, + pass_through: bool | None = None, +) -> IntoLazyFrameT | IntoDataFrameT | IntoSeriesT | Any: + """Convert Narwhals object to native one. + + See `narwhals.to_native` for full docstring. Note that `native_namespace` is + an is the same as `backend` but only accepts module types - for new code, we + recommend using `backend`, as that's available beyond just `narwhals.stable.v1`. + """ + from narwhals._utils import validate_strict_and_pass_though + + pass_through = validate_strict_and_pass_though( + strict, pass_through, pass_through_default=False + ) + return nw.to_native(narwhals_object, pass_through=pass_through) + + +def narwhalify( + func: Callable[..., Any] | None = None, + *, + strict: bool | None = None, + pass_through: bool | None = None, + eager_only: bool = False, + eager_or_interchange_only: bool = False, + series_only: bool = False, + allow_series: bool | None = True, +) -> Callable[..., Any]: + """Decorate function so it becomes dataframe-agnostic. + + See `narwhals.narwhalify` for full docstring. Note that `native_namespace` is + an is the same as `backend` but only accepts module types - for new code, we + recommend using `backend`, as that's available beyond just `narwhals.stable.v1`. + """ + pass_through = validate_strict_and_pass_though( + strict, pass_through, pass_through_default=True + ) + + def decorator(func: Callable[..., Any]) -> Callable[..., Any]: + @wraps(func) + def wrapper(*args: Any, **kwargs: Any) -> Any: + args_nw = [ + from_native( + arg, + pass_through=pass_through, + eager_only=eager_only, + eager_or_interchange_only=eager_or_interchange_only, + series_only=series_only, + allow_series=allow_series, + ) + for arg in args + ] + + kwargs_nw = { + name: from_native( + value, + pass_through=pass_through, + eager_only=eager_only, + eager_or_interchange_only=eager_or_interchange_only, + series_only=series_only, + allow_series=allow_series, + ) + for name, value in kwargs.items() + } + + backends = { + b() + for v in (*args_nw, *kwargs_nw.values()) + if (b := getattr(v, "__native_namespace__", None)) + } + + if backends.__len__() > 1: + msg = "Found multiple backends. Make sure that all dataframe/series inputs come from the same backend." + raise ValueError(msg) + + result = func(*args_nw, **kwargs_nw) + + return to_native(result, pass_through=pass_through) + + return wrapper + + if func is None: + return decorator + # If func is not None, it means the decorator is used without arguments + return decorator(func) + + +def all() -> Expr: + return _stableify(nw.all()) + + +def col(*names: str | Iterable[str]) -> Expr: + return _stableify(nw.col(*names)) + + +def exclude(*names: str | Iterable[str]) -> Expr: + return _stableify(nw.exclude(*names)) + + +def nth(*indices: int | Sequence[int]) -> Expr: + return _stableify(nw.nth(*indices)) + + +def len() -> Expr: + return _stableify(nw.len()) + + +def lit(value: NonNestedLiteral, dtype: IntoDType | None = None) -> Expr: + return _stableify(nw.lit(value, dtype)) + + +def min(*columns: str) -> Expr: + return _stableify(nw.min(*columns)) + + +def max(*columns: str) -> Expr: + return _stableify(nw.max(*columns)) + + +def mean(*columns: str) -> Expr: + return _stableify(nw.mean(*columns)) + + +def median(*columns: str) -> Expr: + return _stableify(nw.median(*columns)) + + +def sum(*columns: str) -> Expr: + return _stableify(nw.sum(*columns)) + + +def sum_horizontal(*exprs: IntoExpr | Iterable[IntoExpr]) -> Expr: + return _stableify(nw.sum_horizontal(*exprs)) + + +def all_horizontal( + *exprs: IntoExpr | Iterable[IntoExpr], ignore_nulls: bool = False +) -> Expr: + return _stableify(nw.all_horizontal(*exprs, ignore_nulls=ignore_nulls)) + + +def any_horizontal( + *exprs: IntoExpr | Iterable[IntoExpr], ignore_nulls: bool = False +) -> Expr: + return _stableify(nw.any_horizontal(*exprs, ignore_nulls=ignore_nulls)) + + +def mean_horizontal(*exprs: IntoExpr | Iterable[IntoExpr]) -> Expr: + return _stableify(nw.mean_horizontal(*exprs)) + + +def min_horizontal(*exprs: IntoExpr | Iterable[IntoExpr]) -> Expr: + return _stableify(nw.min_horizontal(*exprs)) + + +def max_horizontal(*exprs: IntoExpr | Iterable[IntoExpr]) -> Expr: + return _stableify(nw.max_horizontal(*exprs)) + + +def concat_str( + exprs: IntoExpr | Iterable[IntoExpr], + *more_exprs: IntoExpr, + separator: str = "", + ignore_nulls: bool = False, +) -> Expr: + return _stableify( + nw.concat_str(exprs, *more_exprs, separator=separator, ignore_nulls=ignore_nulls) + ) + + +def format(f_string: str, *args: IntoExpr) -> Expr: + """Format expressions as a string.""" + return _stableify(nw.format(f_string, *args)) + + +def coalesce(exprs: IntoExpr | Iterable[IntoExpr], *more_exprs: IntoExpr) -> Expr: + return _stableify(nw.coalesce(exprs, *more_exprs)) + + +def get_level( + obj: DataFrame[Any] | LazyFrame[Any] | Series[IntoSeriesT], +) -> Literal["full", "lazy", "interchange"]: + """Level of support Narwhals has for current object. + + Arguments: + obj: Dataframe or Series. + + Returns: + This can be one of + + - 'full': full Narwhals API support + - 'lazy': only lazy operations are supported. This excludes anything + which involves iterating over rows in Python. + - 'interchange': only metadata operations are supported (`df.schema`) + """ + return obj._level + + +class When(nw_f.When): + @classmethod + def from_when(cls, when: nw_f.When) -> When: + return cls(when._predicate) + + def then(self, value: IntoExpr | NonNestedLiteral | _1DArray) -> Then: + return Then.from_then(super().then(value)) + + +class Then(nw_f.Then, Expr): + @classmethod + def from_then(cls, then: nw_f.Then) -> Then: + return cls(*then._nodes) + + def otherwise(self, value: IntoExpr | NonNestedLiteral | _1DArray) -> Expr: + return _stableify(super().otherwise(value)) + + +def when(*predicates: IntoExpr | Iterable[IntoExpr]) -> When: + return When.from_when(nw_f.when(*predicates)) + + +@deprecate_native_namespace(required=True) +def new_series( + name: str, + values: Any, + dtype: IntoDType | None = None, + *, + backend: IntoBackend[EagerAllowed] | None = None, + native_namespace: ModuleType | None = None, # noqa: ARG001 +) -> Series[Any]: + """Instantiate Narwhals Series from iterable (e.g. list or array). + + See `narwhals.new_series` for full docstring. Note that `native_namespace` is + an is the same as `backend` but only accepts module types - for new code, we + recommend using `backend`, as that's available beyond just `narwhals.stable.v1`. + """ + backend = cast("IntoBackend[EagerAllowed]", backend) + return _stableify(_new_series_impl(name, values, dtype, backend=backend)) + + +@deprecate_native_namespace(required=True) +def from_arrow( + native_frame: IntoArrowTable, + *, + backend: IntoBackend[EagerAllowed] | None = None, + native_namespace: ModuleType | None = None, # noqa: ARG001 +) -> DataFrame[Any]: + """Construct a DataFrame from an object which supports the PyCapsule Interface. + + See `narwhals.from_arrow` for full docstring. Note that `native_namespace` is + an is the same as `backend` but only accepts module types - for new code, we + recommend using `backend`, as that's available beyond just `narwhals.stable.v1`. + """ + backend = cast("IntoBackend[EagerAllowed]", backend) + return _stableify(nw_f.from_arrow(native_frame, backend=backend)) + + +@deprecate_native_namespace() +def from_dict( + data: Mapping[str, Any], + schema: Mapping[str, DType] | Schema | None = None, + *, + backend: IntoBackend[EagerAllowed] | None = None, + native_namespace: ModuleType | None = None, # noqa: ARG001 +) -> DataFrame[Any]: + """Instantiate DataFrame from dictionary. + + See `narwhals.from_dict` for full docstring. Note that `native_namespace` is + an is the same as `backend` but only accepts module types - for new code, we + recommend using `backend`, as that's available beyond just `narwhals.stable.v1`. + """ + return _stableify(nw_f.from_dict(data, schema, backend=backend)) + + +from_dicts: Final = DataFrame.from_dicts + + +@deprecate_native_namespace(required=True) +def from_numpy( + data: _2DArray, + schema: Mapping[str, DType] | Schema | Sequence[str] | None = None, + *, + backend: IntoBackend[EagerAllowed] | None = None, + native_namespace: ModuleType | None = None, # noqa: ARG001 +) -> DataFrame[Any]: + """Construct a DataFrame from a NumPy ndarray. + + See `narwhals.from_numpy` for full docstring. Note that `native_namespace` is + an is the same as `backend` but only accepts module types - for new code, we + recommend using `backend`, as that's available beyond just `narwhals.stable.v1`. + """ + backend = cast("IntoBackend[EagerAllowed]", backend) + return _stableify(nw_f.from_numpy(data, schema, backend=backend)) + + +@deprecate_native_namespace(required=True) +def read_csv( + source: FileSource, + *, + backend: IntoBackend[EagerAllowed] | None = None, + native_namespace: ModuleType | None = None, # noqa: ARG001 + **kwargs: Any, +) -> DataFrame[Any]: + """Read a CSV file into a DataFrame. + + See `narwhals.read_csv` for full docstring. Note that `native_namespace` is + an is the same as `backend` but only accepts module types - for new code, we + recommend using `backend`, as that's available beyond just `narwhals.stable.v1`. + """ + backend = cast("IntoBackend[EagerAllowed]", backend) + return _stableify(nw_f.read_csv(source, backend=backend, **kwargs)) + + +@deprecate_native_namespace(required=True) +def scan_csv( + source: FileSource, + *, + backend: IntoBackend[Backend] | None = None, + native_namespace: ModuleType | None = None, # noqa: ARG001 + **kwargs: Any, +) -> LazyFrame[Any]: + """Lazily read from a CSV file. + + See `narwhals.scan_csv` for full docstring. Note that `native_namespace` is + an is the same as `backend` but only accepts module types - for new code, we + recommend using `backend`, as that's available beyond just `narwhals.stable.v1`. + """ + backend = cast("IntoBackend[Backend]", backend) + return _stableify(nw_f.scan_csv(source, backend=backend, **kwargs)) + + +@deprecate_native_namespace(required=True) +def read_parquet( + source: FileSource, + *, + backend: IntoBackend[EagerAllowed] | None = None, + native_namespace: ModuleType | None = None, # noqa: ARG001 + **kwargs: Any, +) -> DataFrame[Any]: + """Read into a DataFrame from a parquet file. + + See `narwhals.read_parquet` for full docstring. Note that `native_namespace` is + an is the same as `backend` but only accepts module types - for new code, we + recommend using `backend`, as that's available beyond just `narwhals.stable.v1`. + """ + backend = cast("IntoBackend[EagerAllowed]", backend) + return _stableify(nw_f.read_parquet(source, backend=backend, **kwargs)) + + +@deprecate_native_namespace(required=True) +def scan_parquet( + source: FileSource, + *, + backend: IntoBackend[Backend] | None = None, + native_namespace: ModuleType | None = None, # noqa: ARG001 + **kwargs: Any, +) -> LazyFrame[Any]: + """Lazily read from a parquet file. + + See `narwhals.scan_parquet` for full docstring. Note that `native_namespace` is + an is the same as `backend` but only accepts module types - for new code, we + recommend using `backend`, as that's available beyond just `narwhals.stable.v1`. + """ + backend = cast("IntoBackend[Backend]", backend) + return _stableify(nw_f.scan_parquet(source, backend=backend, **kwargs)) + + +__all__ = [ + "Array", + "Binary", + "Boolean", + "Categorical", + "DataFrame", + "Date", + "Datetime", + "Decimal", + "Duration", + "Enum", + "Expr", + "Field", + "Float32", + "Float64", + "Implementation", + "Int8", + "Int16", + "Int32", + "Int64", + "Int128", + "InvalidIntoExprError", + "LazyFrame", + "List", + "Object", + "Schema", + "Series", + "String", + "Struct", + "Time", + "UInt8", + "UInt16", + "UInt32", + "UInt64", + "UInt128", + "Unknown", + "all", + "all_horizontal", + "any_horizontal", + "coalesce", + "col", + "concat", + "concat_str", + "dependencies", + "dtypes", + "exceptions", + "exclude", + "format", + "from_arrow", + "from_dict", + "from_dicts", + "from_native", + "from_numpy", + "generate_temporary_column_name", + "get_level", + "get_native_namespace", + "is_expr", + "is_ordered_categorical", + "len", + "lit", + "max", + "max_horizontal", + "maybe_align_index", + "maybe_convert_dtypes", + "maybe_get_index", + "maybe_reset_index", + "maybe_set_index", + "mean", + "mean_horizontal", + "median", + "min", + "min_horizontal", + "narwhalify", + "new_series", + "nth", + "read_csv", + "read_parquet", + "scan_csv", + "scan_parquet", + "selectors", + "show_versions", + "sum", + "sum_horizontal", + "to_native", + "to_py_scalar", + "when", +] diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/_dtypes.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/_dtypes.py new file mode 100644 index 0000000000000000000000000000000000000000..5b4ea54958a60446f63c027d25246869e0b733e9 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/_dtypes.py @@ -0,0 +1,136 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING + +from narwhals._utils import inherit_doc +from narwhals.dtypes import ( + Array, + Binary, + Boolean, + Categorical, + Date, + Datetime as NwDatetime, + Decimal, + DType, + DTypeClass, + Duration as NwDuration, + Enum as NwEnum, + Field, + Float32, + Float64, + FloatType, + Int8, + Int16, + Int32, + Int64, + Int128, + IntegerType, + List, + NestedType, + NumericType, + Object, + SignedIntegerType, + String, + Struct, + Time, + UInt8, + UInt16, + UInt32, + UInt64, + UInt128, + Unknown, + UnsignedIntegerType, +) + +if TYPE_CHECKING: + from datetime import timezone + + from narwhals.typing import TimeUnit + + +class Datetime(NwDatetime): + @inherit_doc(NwDatetime) + def __init__( + self, time_unit: TimeUnit = "us", time_zone: str | timezone | None = None + ) -> None: + super().__init__(time_unit, time_zone) + + def __hash__(self) -> int: + return hash(self.__class__) + + +class Duration(NwDuration): + @inherit_doc(NwDuration) + def __init__(self, time_unit: TimeUnit = "us") -> None: + super().__init__(time_unit) + + def __hash__(self) -> int: + return hash(self.__class__) + + +class Enum(NwEnum): + """A fixed categorical encoding of a unique set of strings. + + Polars has an Enum data type, while pandas and PyArrow do not. + + Examples: + >>> import polars as pl + >>> import narwhals.stable.v1 as nw + >>> data = ["beluga", "narwhal", "orca"] + >>> s_native = pl.Series(data, dtype=pl.Enum(data)) + >>> nw.from_native(s_native, series_only=True).dtype + Enum + """ + + def __init__(self) -> None: + super(NwEnum, self).__init__() + + def __eq__(self, other: DType | type[DType]) -> bool: # type: ignore[override] + if type(other) is DTypeClass: + return other in {type(self), NwEnum} + return isinstance(other, type(self)) + + def __hash__(self) -> int: # pragma: no cover + return super(NwEnum, self).__hash__() + + def __repr__(self) -> str: # pragma: no cover + return super(NwEnum, self).__repr__() + + +__all__ = [ + "Array", + "Binary", + "Boolean", + "Categorical", + "DType", + "Date", + "Datetime", + "Decimal", + "Duration", + "Enum", + "Field", + "Float32", + "Float64", + "FloatType", + "Int8", + "Int16", + "Int32", + "Int64", + "Int128", + "IntegerType", + "List", + "NestedType", + "NumericType", + "Object", + "SignedIntegerType", + "String", + "Struct", + "Time", + "UInt8", + "UInt16", + "UInt32", + "UInt64", + "UInt128", + "Unknown", + "UnsignedIntegerType", +] diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/_namespace.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/_namespace.py new file mode 100644 index 0000000000000000000000000000000000000000..8f11f0110216efc73bbc579e6a0656d86e21115e --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/_namespace.py @@ -0,0 +1,10 @@ +from __future__ import annotations + +from narwhals._compliant.typing import CompliantNamespaceT_co +from narwhals._namespace import Namespace as NwNamespace +from narwhals._utils import Version + +__all__ = ["Namespace"] + + +class Namespace(NwNamespace[CompliantNamespaceT_co], version=Version.V1): ... diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/dependencies.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/dependencies.py new file mode 100644 index 0000000000000000000000000000000000000000..2674f2890f057bd657f178e0b70f09596410d376 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/dependencies.py @@ -0,0 +1,156 @@ +from __future__ import annotations + +import sys +from typing import TYPE_CHECKING, Any + +if TYPE_CHECKING: + import cudf + import dask.dataframe as dd + import ibis + import modin.pandas as mpd + import pandas as pd + import polars as pl + import pyarrow as pa + from typing_extensions import TypeIs + + +from narwhals.dependencies import ( + IMPORT_HOOKS, + get_cudf, + get_dask_dataframe, + get_ibis, + get_modin, + get_numpy, + get_pandas, + get_polars, + get_pyarrow, + is_into_dataframe, + is_into_series, + is_narwhals_dataframe, + is_narwhals_lazyframe, + is_narwhals_series, + is_numpy_array, + is_pandas_index, +) + + +def is_pandas_dataframe(df: Any) -> TypeIs[pd.DataFrame]: + """Check whether `df` is a pandas DataFrame without importing pandas.""" + return ((pd := get_pandas()) is not None and isinstance(df, pd.DataFrame)) or any( + (mod := sys.modules.get(module_name, None)) is not None + and isinstance(df, mod.pandas.DataFrame) + for module_name in IMPORT_HOOKS + ) + + +def is_pandas_series(ser: Any) -> TypeIs[pd.Series[Any]]: + """Check whether `ser` is a pandas Series without importing pandas.""" + return ((pd := get_pandas()) is not None and isinstance(ser, pd.Series)) or any( + (mod := sys.modules.get(module_name, None)) is not None + and isinstance(ser, mod.pandas.Series) + for module_name in IMPORT_HOOKS + ) + + +def is_modin_dataframe(df: Any) -> TypeIs[mpd.DataFrame]: + """Check whether `df` is a modin DataFrame without importing modin.""" + return (mpd := get_modin()) is not None and isinstance(df, mpd.DataFrame) + + +def is_modin_series(ser: Any) -> TypeIs[mpd.Series]: + """Check whether `ser` is a modin Series without importing modin.""" + return (mpd := get_modin()) is not None and isinstance(ser, mpd.Series) + + +def is_cudf_dataframe(df: Any) -> TypeIs[cudf.DataFrame]: + """Check whether `df` is a cudf DataFrame without importing cudf.""" + return (cudf := get_cudf()) is not None and isinstance(df, cudf.DataFrame) + + +def is_cudf_series(ser: Any) -> TypeIs[cudf.Series[Any]]: + """Check whether `ser` is a cudf Series without importing cudf.""" + return (cudf := get_cudf()) is not None and isinstance(ser, cudf.Series) + + +def is_dask_dataframe(df: Any) -> TypeIs[dd.DataFrame]: + """Check whether `df` is a Dask DataFrame without importing Dask.""" + return (dd := get_dask_dataframe()) is not None and isinstance(df, dd.DataFrame) + + +def is_ibis_table(df: Any) -> TypeIs[ibis.Table]: + """Check whether `df` is a Ibis Table without importing Ibis.""" + return (ibis := get_ibis()) is not None and isinstance(df, ibis.expr.types.Table) + + +def is_polars_dataframe(df: Any) -> TypeIs[pl.DataFrame]: + """Check whether `df` is a Polars DataFrame without importing Polars.""" + return (pl := get_polars()) is not None and isinstance(df, pl.DataFrame) + + +def is_polars_lazyframe(df: Any) -> TypeIs[pl.LazyFrame]: + """Check whether `df` is a Polars LazyFrame without importing Polars.""" + return (pl := get_polars()) is not None and isinstance(df, pl.LazyFrame) + + +def is_polars_series(ser: Any) -> TypeIs[pl.Series]: + """Check whether `ser` is a Polars Series without importing Polars.""" + return (pl := get_polars()) is not None and isinstance(ser, pl.Series) + + +def is_pyarrow_chunked_array(ser: Any) -> TypeIs[pa.ChunkedArray[Any]]: + """Check whether `ser` is a PyArrow ChunkedArray without importing PyArrow.""" + return (pa := get_pyarrow()) is not None and isinstance(ser, pa.ChunkedArray) + + +def is_pyarrow_table(df: Any) -> TypeIs[pa.Table]: + """Check whether `df` is a PyArrow Table without importing PyArrow.""" + return (pa := get_pyarrow()) is not None and isinstance(df, pa.Table) + + +def is_pandas_like_dataframe(df: Any) -> bool: + """Check whether `df` is a pandas-like DataFrame without doing any imports. + + By "pandas-like", we mean: pandas, Modin, cuDF. + """ + return is_pandas_dataframe(df) or is_modin_dataframe(df) or is_cudf_dataframe(df) + + +def is_pandas_like_series(ser: Any) -> bool: + """Check whether `ser` is a pandas-like Series without doing any imports. + + By "pandas-like", we mean: pandas, Modin, cuDF. + """ + return is_pandas_series(ser) or is_modin_series(ser) or is_cudf_series(ser) + + +__all__ = [ + "get_cudf", + "get_ibis", + "get_modin", + "get_numpy", + "get_pandas", + "get_polars", + "get_pyarrow", + "is_cudf_dataframe", + "is_cudf_series", + "is_dask_dataframe", + "is_ibis_table", + "is_into_dataframe", + "is_into_series", + "is_modin_dataframe", + "is_modin_series", + "is_narwhals_dataframe", + "is_narwhals_lazyframe", + "is_narwhals_series", + "is_numpy_array", + "is_pandas_dataframe", + "is_pandas_index", + "is_pandas_like_dataframe", + "is_pandas_like_series", + "is_pandas_series", + "is_polars_dataframe", + "is_polars_lazyframe", + "is_polars_series", + "is_pyarrow_chunked_array", + "is_pyarrow_table", +] diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/dtypes.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/dtypes.py new file mode 100644 index 0000000000000000000000000000000000000000..a292be8a6010cd39b3c230132dad72e98d5346ab --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/dtypes.py @@ -0,0 +1,77 @@ +from __future__ import annotations + +from narwhals.stable.v1._dtypes import ( + Array, + Binary, + Boolean, + Categorical, + Date, + Datetime, + Decimal, + DType, + Duration, + Enum, + Field, + Float32, + Float64, + FloatType, + Int8, + Int16, + Int32, + Int64, + Int128, + IntegerType, + List, + NestedType, + NumericType, + Object, + SignedIntegerType, + String, + Struct, + Time, + UInt8, + UInt16, + UInt32, + UInt64, + UInt128, + Unknown, + UnsignedIntegerType, +) + +__all__ = [ + "Array", + "Binary", + "Boolean", + "Categorical", + "DType", + "Date", + "Datetime", + "Decimal", + "Duration", + "Enum", + "Field", + "Float32", + "Float64", + "FloatType", + "Int8", + "Int16", + "Int32", + "Int64", + "Int128", + "IntegerType", + "List", + "NestedType", + "NumericType", + "Object", + "SignedIntegerType", + "String", + "Struct", + "Time", + "UInt8", + "UInt16", + "UInt32", + "UInt64", + "UInt128", + "Unknown", + "UnsignedIntegerType", +] diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/selectors.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/selectors.py new file mode 100644 index 0000000000000000000000000000000000000000..ede128eb3cff3f36781c20e64cb0e25c0dbfce55 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/selectors.py @@ -0,0 +1,23 @@ +from __future__ import annotations + +from narwhals.selectors import ( + all, + boolean, + by_dtype, + categorical, + datetime, + matches, + numeric, + string, +) + +__all__ = [ + "all", + "boolean", + "by_dtype", + "categorical", + "datetime", + "matches", + "numeric", + "string", +] diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/typing.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/typing.py new file mode 100644 index 0000000000000000000000000000000000000000..a154a1a3f8a8843582bd9f99120234a9ca5ccaea --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v1/typing.py @@ -0,0 +1,144 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Any, Protocol, Union + +from narwhals._native import IntoSeries +from narwhals._typing_compat import TypeVar + +if TYPE_CHECKING: + from typing_extensions import TypeAlias + + from narwhals._native import NativeDataFrame, NativeDuckDB, NativeLazyFrame + from narwhals.stable.v1 import DataFrame, Expr, LazyFrame, Series + + class DataFrameLike(Protocol): + def __dataframe__(self, *args: Any, **kwargs: Any) -> Any: ... + + +IntoExpr: TypeAlias = Union["Expr", str, "Series[Any]"] +"""Anything which can be converted to an expression. + +Use this to mean "either a Narwhals expression, or something +which can be converted into one". For example, `exprs` in `DataFrame.select` is +typed to accept `IntoExpr`, as it can either accept a `nw.Expr` +(e.g. `df.select(nw.col('a'))`) or a string which will be interpreted as a +`nw.Expr`, e.g. `df.select('a')`. +""" + +IntoDataFrame: TypeAlias = Union["NativeDataFrame", "DataFrameLike", "NativeDuckDB"] +"""Anything which can be converted to a Narwhals DataFrame. + +Use this if your function accepts a narwhalifiable object but doesn't care about its backend. + +Examples: + >>> import narwhals as nw + >>> from narwhals.typing import IntoDataFrame + >>> def agnostic_shape(df_native: IntoDataFrame) -> tuple[int, int]: + ... df = nw.from_native(df_native, eager_only=True) + ... return df.shape +""" + +IntoLazyFrame: TypeAlias = "NativeLazyFrame" +IntoFrame: TypeAlias = Union["IntoDataFrame", "IntoLazyFrame"] +"""Anything which can be converted to a Narwhals DataFrame or LazyFrame. + +Use this if your function can accept an object which can be converted to either +`nw.DataFrame` or `nw.LazyFrame` and it doesn't care about its backend. + +Examples: + >>> import narwhals as nw + >>> from narwhals.typing import IntoFrame + >>> def agnostic_columns(df_native: IntoFrame) -> list[str]: + ... df = nw.from_native(df_native) + ... return df.collect_schema().names() +""" + +Frame: TypeAlias = Union["DataFrame[Any]", "LazyFrame[Any]"] +"""Narwhals DataFrame or Narwhals LazyFrame. + +Use this if your function can work with either and your function doesn't care +about its backend. + +Examples: + >>> import narwhals as nw + >>> from narwhals.typing import Frame + >>> @nw.narwhalify + ... def agnostic_columns(df: Frame) -> list[str]: + ... return df.columns +""" + +IntoFrameT = TypeVar("IntoFrameT", bound="IntoFrame") +"""TypeVar bound to object convertible to Narwhals DataFrame or Narwhals LazyFrame. + +Use this if your function accepts an object which is convertible to `nw.DataFrame` +or `nw.LazyFrame` and returns an object of the same type. + +Examples: + >>> import narwhals as nw + >>> from narwhals.typing import IntoFrameT + >>> def agnostic_func(df_native: IntoFrameT) -> IntoFrameT: + ... df = nw.from_native(df_native) + ... return df.with_columns(c=nw.col("a") + 1).to_native() +""" + +IntoDataFrameT = TypeVar("IntoDataFrameT", bound="IntoDataFrame") +"""TypeVar bound to object convertible to Narwhals DataFrame. + +Use this if your function accepts an object which can be converted to `nw.DataFrame` +and returns an object of the same class. + +Examples: + >>> import narwhals as nw + >>> from narwhals.typing import IntoDataFrameT + >>> def agnostic_func(df_native: IntoDataFrameT) -> IntoDataFrameT: + ... df = nw.from_native(df_native, eager_only=True) + ... return df.with_columns(c=df["a"] + 1).to_native() +""" + +IntoLazyFrameT = TypeVar("IntoLazyFrameT", bound="IntoLazyFrame") +FrameT = TypeVar("FrameT", "DataFrame[Any]", "LazyFrame[Any]") +"""TypeVar bound to Narwhals DataFrame or Narwhals LazyFrame. + +Use this if your function accepts either `nw.DataFrame` or `nw.LazyFrame` and returns +an object of the same kind. + +Examples: + >>> import narwhals as nw + >>> from narwhals.typing import FrameT + >>> @nw.narwhalify + ... def agnostic_func(df: FrameT) -> FrameT: + ... return df.with_columns(c=nw.col("a") + 1) +""" + +DataFrameT = TypeVar("DataFrameT", bound="DataFrame[Any]") +"""TypeVar bound to Narwhals DataFrame. + +Use this if your function can accept a Narwhals DataFrame and returns a Narwhals +DataFrame backed by the same backend. + +Examples: + >>> import narwhals as nw + >>> from narwhals.typing import DataFrameT + >>> @nw.narwhalify + >>> def func(df: DataFrameT) -> DataFrameT: + ... return df.with_columns(c=df["a"] + 1) +""" + +LazyFrameT = TypeVar("LazyFrameT", bound="LazyFrame[Any]") +SeriesT = TypeVar("SeriesT", bound="Series[Any]") +IntoSeriesT = TypeVar("IntoSeriesT", bound="IntoSeries", default=Any) + +__all__ = [ + "DataFrameT", + "Frame", + "FrameT", + "IntoDataFrame", + "IntoDataFrameT", + "IntoExpr", + "IntoFrame", + "IntoFrameT", + "IntoSeries", + "IntoSeriesT", + "LazyFrameT", + "SeriesT", +] diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/.___init__.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/.___init__.py new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/.___init__.py differ diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/.___pycache__ b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/.___pycache__ new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/.___pycache__ differ diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/.__namespace.py 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b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..dc4c757c204c3b21a465d9638707c1fa0bfd1738 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/__init__.py @@ -0,0 +1,1234 @@ +from __future__ import annotations + +from functools import wraps +from typing import TYPE_CHECKING, Any, Callable, Final, Literal, cast, overload + +import narwhals as nw +from narwhals import exceptions, functions as nw_f +from narwhals._exceptions import issue_warning +from narwhals._expression_parsing import ExprKind, ExprNode +from narwhals._typing_compat import TypeVar, assert_never +from narwhals._utils import ( + Implementation, + Version, + generate_temporary_column_name, + inherit_doc, + is_ordered_categorical, + maybe_align_index, + maybe_convert_dtypes, + maybe_get_index, + maybe_reset_index, + maybe_set_index, + not_implemented, +) +from narwhals.dataframe import DataFrame as NwDataFrame, LazyFrame as NwLazyFrame +from narwhals.dtypes import ( + Array, + Binary, + Boolean, + Categorical, + Date, + Datetime, + Decimal, + Duration, + Enum, + Field, + Float32, + Float64, + Int8, + Int16, + Int32, + Int64, + Int128, + List, + Object, + String, + Struct, + Time, + UInt8, + UInt16, + UInt32, + UInt64, + UInt128, + Unknown, +) +from narwhals.exceptions import NarwhalsUnstableWarning +from narwhals.expr import Expr as NwExpr +from narwhals.functions import _new_series_impl, concat, show_versions +from narwhals.schema import Schema as NwSchema +from narwhals.series import Series as NwSeries +from narwhals.stable.v2 import dependencies, dtypes, selectors +from narwhals.stable.v2.typing import ( + DataFrameT, + IntoDataFrameT, + IntoFrame, + IntoLazyFrameT, + IntoSeries, + IntoSeriesT, + LazyFrameT, + SeriesT, +) +from narwhals.translate import _from_native_impl, get_native_namespace, to_py_scalar + +if TYPE_CHECKING: + from collections.abc import Iterable, Mapping, Sequence + + from typing_extensions import ParamSpec, Self, Unpack + + from narwhals._translate import ( + AllowAny, + AllowLazy, + AllowSeries, + ExcludeSeries, + IntoArrowTable, + OnlySeries, + PassThroughUnknown, + ) + from narwhals._typing import ( + Arrow, + Backend, + EagerAllowed, + IntoBackend, + LazyAllowed, + Pandas, + Polars, + ) + from narwhals.dataframe import MultiColSelector, MultiIndexSelector + from narwhals.stable.v2.dtypes import DType + from narwhals.typing import ( + IntoDType, + IntoExpr, + IntoSchema, + NonNestedLiteral, + PythonLiteral, + SingleColSelector, + SingleIndexSelector, + _1DArray, + _2DArray, + ) + + T = TypeVar("T", default=Any) + P = ParamSpec("P") + R = TypeVar("R") + + +class DataFrame(NwDataFrame[IntoDataFrameT]): + _version = Version.V2 + + @inherit_doc(NwDataFrame) + def __init__(self, df: Any, *, level: Literal["full", "lazy", "interchange"]) -> None: + assert df._version is Version.V2 # noqa: S101 + super().__init__(df, level=level) + + # We need to override any method which don't return Self so that type + # annotations are correct. + + @classmethod + def from_arrow( + cls, native_frame: IntoArrowTable, *, backend: IntoBackend[EagerAllowed] + ) -> DataFrame[Any]: + result = super().from_arrow(native_frame, backend=backend) + return cast("DataFrame[Any]", result) + + @classmethod + def from_dict( + cls, + data: Mapping[str, Any], + schema: IntoSchema | Mapping[str, DType | None] | None = None, + *, + backend: IntoBackend[EagerAllowed] | None = None, + ) -> DataFrame[Any]: + result = super().from_dict(data, schema, backend=backend) + return cast("DataFrame[Any]", result) + + @classmethod + def from_dicts( + cls, + data: Sequence[Mapping[str, Any]], + schema: IntoSchema | Mapping[str, DType | None] | None = None, + *, + backend: IntoBackend[EagerAllowed], + ) -> DataFrame[Any]: + result = super().from_dicts(data, schema, backend=backend) + return cast("DataFrame[Any]", result) + + @classmethod + def from_numpy( + cls, + data: _2DArray, + schema: Mapping[str, DType] | Schema | Sequence[str] | None = None, + *, + backend: IntoBackend[EagerAllowed], + ) -> DataFrame[Any]: + result = super().from_numpy(data, schema, backend=backend) + return cast("DataFrame[Any]", result) + + @property + def _series(self) -> type[Series[Any]]: + return cast("type[Series[Any]]", Series) + + @property + def _lazyframe(self) -> type[LazyFrame[Any]]: + return cast("type[LazyFrame[Any]]", LazyFrame) + + @overload + def __getitem__(self, item: tuple[SingleIndexSelector, SingleColSelector]) -> Any: ... + + @overload + def __getitem__( # type: ignore[overload-overlap] + self, item: str | tuple[MultiIndexSelector, SingleColSelector] + ) -> Series[Any]: ... + + @overload + def __getitem__( + self, + item: ( + SingleIndexSelector + | MultiIndexSelector + | MultiColSelector + | tuple[SingleIndexSelector, MultiColSelector] + | tuple[MultiIndexSelector, MultiColSelector] + ), + ) -> Self: ... + def __getitem__( + self, + item: ( + SingleIndexSelector + | SingleColSelector + | MultiColSelector + | MultiIndexSelector + | tuple[SingleIndexSelector, SingleColSelector] + | tuple[SingleIndexSelector, MultiColSelector] + | tuple[MultiIndexSelector, SingleColSelector] + | tuple[MultiIndexSelector, MultiColSelector] + ), + ) -> Series[Any] | Self | Any: + return super().__getitem__(item) + + def get_column(self, name: str) -> Series[Any]: + # Type checkers complain that `nw.Series` is not assignable to `nw.v2.stable.Series`. + # However the return type actually is `nw.v2.stable.Series`, check `tests/v2_test.py`. + return super().get_column(name) # type: ignore[return-value] + + def lazy( + self, + backend: IntoBackend[LazyAllowed] | None = None, + *, + session: Any | None = None, + ) -> LazyFrame[Any]: + return _stableify(super().lazy(backend=backend, session=session)) + + @overload # type: ignore[override] + def to_dict(self, *, as_series: Literal[True] = ...) -> dict[str, Series[Any]]: ... + @overload + def to_dict(self, *, as_series: Literal[False]) -> dict[str, list[Any]]: ... + @overload + def to_dict( + self, *, as_series: bool = True + ) -> dict[str, Series[Any]] | dict[str, list[Any]]: ... + def to_dict( # pyright: ignore[reportIncompatibleMethodOverride] + self, *, as_series: bool = True + ) -> dict[str, Series[Any]] | dict[str, list[Any]]: + # Type checkers complain that `nw.Series` is not assignable to `nw.v2.stable.Series`. + # However the return type actually is `nw.v2.stable.Series`, check `tests/v2_test.py::test_to_dict_as_series`. + return super().to_dict(as_series=as_series) # type: ignore[return-value] + + def is_duplicated(self) -> Series[Any]: + return _stableify(super().is_duplicated()) + + def is_unique(self) -> Series[Any]: + return _stableify(super().is_unique()) + + +class LazyFrame(NwLazyFrame[IntoLazyFrameT]): + _version = Version.V2 + + @inherit_doc(NwLazyFrame) + def __init__(self, df: Any, *, level: Literal["full", "lazy", "interchange"]) -> None: + assert df._version is Version.V2 # noqa: S101 + super().__init__(df, level=level) + + @property + def _dataframe(self) -> type[DataFrame[Any]]: + return DataFrame + + def collect( + self, backend: IntoBackend[Polars | Pandas | Arrow] | None = None, **kwargs: Any + ) -> DataFrame[Any]: + return _stableify(super().collect(backend=backend, **kwargs)) + + +class Series(NwSeries[IntoSeriesT]): + _version = Version.V2 + + @inherit_doc(NwSeries) + def __init__( + self, series: Any, *, level: Literal["full", "lazy", "interchange"] + ) -> None: + assert series._version is Version.V2 # noqa: S101 + super().__init__(series, level=level) + + # We need to override any method which don't return Self so that type + # annotations are correct. + + @property + def _dataframe(self) -> type[DataFrame[Any]]: + return DataFrame + + @classmethod + def from_numpy( + cls, + name: str, + values: _1DArray, + dtype: IntoDType | None = None, + *, + backend: IntoBackend[EagerAllowed], + ) -> Series[Any]: + result = super().from_numpy(name, values, dtype, backend=backend) + return cast("Series[Any]", result) + + @classmethod + def from_iterable( + cls, + name: str, + values: Iterable[Any], + dtype: IntoDType | None = None, + *, + backend: IntoBackend[EagerAllowed], + ) -> Series[Any]: + result = super().from_iterable(name, values, dtype, backend=backend) + return cast("Series[Any]", result) + + def to_frame(self) -> DataFrame[Any]: + return _stableify(super().to_frame()) + + def value_counts( + self, + *, + sort: bool = False, + parallel: bool = False, + name: str | None = None, + normalize: bool = False, + ) -> DataFrame[Any]: + return _stableify( + super().value_counts( + sort=sort, parallel=parallel, name=name, normalize=normalize + ) + ) + + # Too unstable to consider including here. + hist: Any = not_implemented() + + def any_value(self, *, ignore_nulls: bool = False) -> PythonLiteral: + msg = ( + "`Series.any_value` is being called from the stable API although considered " + "an unstable feature." + ) + issue_warning(msg, NarwhalsUnstableWarning) + return super().any_value(ignore_nulls=ignore_nulls) + + +class Expr(NwExpr): + def any_value(self, *, ignore_nulls: bool = False) -> Self: + msg = ( + "`Expr.any_value` is being called from the stable API although considered " + "an unstable feature." + ) + issue_warning(msg, NarwhalsUnstableWarning) + return self._append_node( + ExprNode(ExprKind.AGGREGATION, "any_value", ignore_nulls=ignore_nulls) + ) + + def first(self) -> Self: # type: ignore[override] + """Get the first value.""" + return self._append_node(ExprNode(ExprKind.ORDERABLE_AGGREGATION, "first")) + + def last(self) -> Self: # type: ignore[override] + """Get the last value.""" + return self._append_node(ExprNode(ExprKind.ORDERABLE_AGGREGATION, "last")) + + +class Schema(NwSchema): + _version = Version.V2 + + @inherit_doc(NwSchema) + def __init__( + self, schema: Mapping[str, DType] | Iterable[tuple[str, DType]] | None = None + ) -> None: + super().__init__(schema) + + +@overload +def _stableify(obj: NwDataFrame[IntoDataFrameT]) -> DataFrame[IntoDataFrameT]: ... +@overload +def _stableify(obj: NwLazyFrame[IntoLazyFrameT]) -> LazyFrame[IntoLazyFrameT]: ... +@overload +def _stableify(obj: NwSeries[IntoSeriesT]) -> Series[IntoSeriesT]: ... +@overload +def _stableify(obj: NwExpr) -> Expr: ... + + +def _stableify( + obj: NwDataFrame[IntoDataFrameT] + | NwLazyFrame[IntoLazyFrameT] + | NwSeries[IntoSeriesT] + | NwExpr, +) -> DataFrame[IntoDataFrameT] | LazyFrame[IntoLazyFrameT] | Series[IntoSeriesT] | Expr: + if isinstance(obj, NwDataFrame): + return DataFrame(obj._compliant_frame._with_version(Version.V2), level=obj._level) + if isinstance(obj, NwLazyFrame): + return LazyFrame(obj._compliant_frame._with_version(Version.V2), level=obj._level) + if isinstance(obj, NwSeries): + return Series(obj._compliant_series._with_version(Version.V2), level=obj._level) + if isinstance(obj, NwExpr): + return Expr(*obj._nodes) + assert_never(obj) + + +@overload +def from_native(native_object: SeriesT, **kwds: Unpack[OnlySeries]) -> SeriesT: ... +@overload +def from_native(native_object: SeriesT, **kwds: Unpack[AllowSeries]) -> SeriesT: ... +@overload +def from_native( + native_object: DataFrameT, **kwds: Unpack[ExcludeSeries] +) -> DataFrameT: ... +# Closer to *intended* than https://github.com/narwhals-dev/narwhals/issues/3226 +@overload +def from_native(native_object: LazyFrameT, **kwds: Unpack[AllowLazy]) -> LazyFrameT: ... +@overload +def from_native( + native_object: IntoDataFrameT, **kwds: Unpack[ExcludeSeries] +) -> DataFrame[IntoDataFrameT]: ... +@overload +def from_native( + native_object: IntoSeriesT, **kwds: Unpack[OnlySeries] +) -> Series[IntoSeriesT]: ... +@overload +def from_native( + native_object: IntoSeriesT, **kwds: Unpack[AllowSeries] +) -> Series[IntoSeriesT]: ... +@overload +def from_native( + native_object: IntoLazyFrameT, **kwds: Unpack[AllowLazy] +) -> LazyFrame[IntoLazyFrameT]: ... +@overload +def from_native( + native_object: IntoDataFrameT | IntoSeriesT, **kwds: Unpack[AllowSeries] +) -> DataFrame[IntoDataFrameT] | Series[IntoSeriesT]: ... +@overload +def from_native( + native_object: IntoDataFrameT | IntoLazyFrameT | IntoSeriesT, **kwds: Unpack[AllowAny] +) -> DataFrame[IntoDataFrameT] | LazyFrame[IntoLazyFrameT] | Series[IntoSeriesT]: ... +@overload +def from_native(native_object: T, **kwds: Unpack[PassThroughUnknown]) -> T: ... +# All params passed in as variables +@overload +def from_native( + native_object: Any, + *, + pass_through: bool, + eager_only: bool, + series_only: bool, + allow_series: bool | None, +) -> Any: ... +def from_native( + native_object: IntoLazyFrameT + | IntoDataFrameT + | IntoSeriesT + | IntoFrame + | IntoSeries + | T, + *, + pass_through: bool = False, + eager_only: bool = False, + series_only: bool = False, + allow_series: bool | None = None, +) -> LazyFrame[IntoLazyFrameT] | DataFrame[IntoDataFrameT] | Series[IntoSeriesT] | T: + """Convert `native_object` to Narwhals Dataframe, Lazyframe, or Series. + + Arguments: + native_object: Raw object from user. + Depending on the other arguments, input object can be + + - a Dataframe / Lazyframe / Series supported by Narwhals (pandas, Polars, PyArrow, ...) + - an object which implements `__narwhals_dataframe__`, `__narwhals_lazyframe__`, + or `__narwhals_series__` + pass_through: Determine what happens if the object can't be converted to Narwhals + + - `False` (default): raise an error + - `True`: pass object through as-is + eager_only: Whether to only allow eager objects + + - `False` (default): don't require `native_object` to be eager + - `True`: only convert to Narwhals if `native_object` is eager + series_only: Whether to only allow Series + + - `False` (default): don't require `native_object` to be a Series + - `True`: only convert to Narwhals if `native_object` is a Series + allow_series: Whether to allow Series (default is only Dataframe / Lazyframe) + + - `False` or `None` (default): don't convert to Narwhals if `native_object` is a Series + - `True`: allow `native_object` to be a Series + + Returns: + DataFrame, LazyFrame, Series, or original object, depending + on which combination of parameters was passed. + """ + # Early returns + if isinstance(native_object, (DataFrame, LazyFrame)) and not series_only: + return native_object + if isinstance(native_object, Series) and (series_only or allow_series): + return native_object + + return _from_native_impl( # type: ignore[no-any-return] + native_object, + pass_through=pass_through, + eager_only=eager_only, + series_only=series_only, + allow_series=allow_series, + eager_or_interchange_only=False, + version=Version.V2, + ) + + +@overload +def to_native( + narwhals_object: DataFrame[IntoDataFrameT], *, pass_through: Literal[False] = ... +) -> IntoDataFrameT: ... +@overload +def to_native( + narwhals_object: LazyFrame[IntoLazyFrameT], *, pass_through: Literal[False] = ... +) -> IntoLazyFrameT: ... +@overload +def to_native( + narwhals_object: Series[IntoSeriesT], *, pass_through: Literal[False] = ... +) -> IntoSeriesT: ... +@overload +def to_native(narwhals_object: Any, *, pass_through: bool) -> Any: ... + + +def to_native( + narwhals_object: DataFrame[IntoDataFrameT] + | LazyFrame[IntoLazyFrameT] + | Series[IntoSeriesT], + *, + pass_through: bool = False, +) -> IntoDataFrameT | IntoLazyFrameT | IntoSeriesT | Any: + """Convert Narwhals object to native one. + + Arguments: + narwhals_object: Narwhals object. + pass_through: Determine what happens if `narwhals_object` isn't a Narwhals class + + - `False` (default): raise an error + - `True`: pass object through as-is + + Returns: + Object of class that user started with. + """ + return nw.to_native(narwhals_object, pass_through=pass_through) + + +def narwhalify( + func: Callable[..., Any] | None = None, + *, + pass_through: bool = True, + eager_only: bool = False, + series_only: bool = False, + allow_series: bool | None = True, +) -> Callable[..., Any]: + """Decorate function so it becomes dataframe-agnostic. + + This will try to convert any dataframe/series-like object into the Narwhals + respective DataFrame/Series, while leaving the other parameters as they are. + Similarly, if the output of the function is a Narwhals DataFrame or Series, it will be + converted back to the original dataframe/series type, while if the output is another + type it will be left as is. + By setting `pass_through=False`, then every input and every output will be required to be a + dataframe/series-like object. + + Arguments: + func: Function to wrap in a `from_native`-`to_native` block. + pass_through: Determine what happens if the object can't be converted to Narwhals + + - `False`: raise an error + - `True` (default): pass object through as-is + eager_only: Whether to only allow eager objects + + - `False` (default): don't require `native_object` to be eager + - `True`: only convert to Narwhals if `native_object` is eager + series_only: Whether to only allow Series + + - `False` (default): don't require `native_object` to be a Series + - `True`: only convert to Narwhals if `native_object` is a Series + allow_series: Whether to allow Series (default is only Dataframe / Lazyframe) + + - `False` or `None`: don't convert to Narwhals if `native_object` is a Series + - `True` (default): allow `native_object` to be a Series + + Returns: + Decorated function. + """ + + def decorator(func: Callable[..., Any]) -> Callable[..., Any]: + @wraps(func) + def wrapper(*args: Any, **kwargs: Any) -> Any: + args_nw = [ + from_native( + arg, + pass_through=pass_through, + eager_only=eager_only, + series_only=series_only, + allow_series=allow_series, + ) + for arg in args + ] + + kwargs_nw = { + name: from_native( + value, + pass_through=pass_through, + eager_only=eager_only, + series_only=series_only, + allow_series=allow_series, + ) + for name, value in kwargs.items() + } + + backends = { + b() + for v in (*args_nw, *kwargs_nw.values()) + if (b := getattr(v, "__native_namespace__", None)) + } + + if backends.__len__() > 1: + msg = "Found multiple backends. Make sure that all dataframe/series inputs come from the same backend." + raise ValueError(msg) + + result = func(*args_nw, **kwargs_nw) + + return to_native(result, pass_through=pass_through) + + return wrapper + + if func is None: + return decorator + # If func is not None, it means the decorator is used without arguments + return decorator(func) + + +def all() -> Expr: + """Instantiate an expression representing all columns.""" + return _stableify(nw.all()) + + +def col(*names: str | Iterable[str]) -> Expr: + """Creates an expression that references one or more columns by their name(s). + + Arguments: + names: Name(s) of the columns to use. + """ + return _stableify(nw.col(*names)) + + +def exclude(*names: str | Iterable[str]) -> Expr: + """Creates an expression that excludes columns by their name(s). + + Arguments: + names: Name(s) of the columns to exclude. + """ + return _stableify(nw.exclude(*names)) + + +def nth(*indices: int | Sequence[int]) -> Expr: + """Creates an expression that references one or more columns by their index(es). + + Notes: + `nth` is not supported for Polars version<1.0.0. Please use + [`narwhals.col`][] instead. + + Arguments: + indices: One or more indices representing the columns to retrieve. + """ + return _stableify(nw.nth(*indices)) + + +def len() -> Expr: + """Return the number of rows.""" + return _stableify(nw.len()) + + +def lit(value: NonNestedLiteral, dtype: IntoDType | None = None) -> Expr: + """Return an expression representing a literal value. + + Arguments: + value: The value to use as literal. Can be a scalar value, list, tuple, or dict. + Lists and tuples are converted to `List` dtype, dicts to `Struct` dtype. + dtype: The data type of the literal value. If not provided, the data type will + be inferred by the native library. For empty lists/dicts, dtype must be + specified explicitly. + """ + return _stableify(nw.lit(value, dtype)) + + +def min(*columns: str) -> Expr: + """Return the minimum value. + + Note: + Syntactic sugar for ``nw.col(columns).min()``. + + Arguments: + columns: Name(s) of the columns to use in the aggregation function. + """ + return _stableify(nw.min(*columns)) + + +def max(*columns: str) -> Expr: + """Return the maximum value. + + Note: + Syntactic sugar for ``nw.col(columns).max()``. + + Arguments: + columns: Name(s) of the columns to use in the aggregation function. + """ + return _stableify(nw.max(*columns)) + + +def mean(*columns: str) -> Expr: + """Get the mean value. + + Note: + Syntactic sugar for ``nw.col(columns).mean()`` + + Arguments: + columns: Name(s) of the columns to use in the aggregation function + """ + return _stableify(nw.mean(*columns)) + + +def median(*columns: str) -> Expr: + """Get the median value. + + Notes: + - Syntactic sugar for ``nw.col(columns).median()`` + - Results might slightly differ across backends due to differences in the + underlying algorithms used to compute the median. + + Arguments: + columns: Name(s) of the columns to use in the aggregation function + """ + return _stableify(nw.median(*columns)) + + +def sum(*columns: str) -> Expr: + """Sum all values. + + Note: + Syntactic sugar for ``nw.col(columns).sum()`` + + Arguments: + columns: Name(s) of the columns to use in the aggregation function + """ + return _stableify(nw.sum(*columns)) + + +def sum_horizontal(*exprs: IntoExpr | Iterable[IntoExpr]) -> Expr: + """Sum all values horizontally across columns. + + Warning: + Unlike Polars, we support horizontal sum over numeric columns only. + + Arguments: + exprs: Name(s) of the columns to use in the aggregation function. Accepts + expression input. + """ + return _stableify(nw.sum_horizontal(*exprs)) + + +def all_horizontal(*exprs: IntoExpr | Iterable[IntoExpr], ignore_nulls: bool) -> Expr: + r"""Compute the bitwise AND horizontally across columns. + + Arguments: + exprs: Name(s) of the columns to use in the aggregation function. Accepts + expression input. + ignore_nulls: Whether to ignore nulls: + + - If `True`, null values are ignored. If there are no elements, the result + is `True`. + - If `False`, Kleene logic is followed. Note that this is not allowed for + pandas with classical NumPy dtypes when null values are present. + """ + return _stableify(nw.all_horizontal(*exprs, ignore_nulls=ignore_nulls)) + + +def any_horizontal(*exprs: IntoExpr | Iterable[IntoExpr], ignore_nulls: bool) -> Expr: + r"""Compute the bitwise OR horizontally across columns. + + Arguments: + exprs: Name(s) of the columns to use in the aggregation function. Accepts + expression input. + ignore_nulls: Whether to ignore nulls: + + - If `True`, null values are ignored. If there are no elements, the result + is `False`. + - If `False`, Kleene logic is followed. Note that this is not allowed for + pandas with classical NumPy dtypes when null values are present. + """ + return _stableify(nw.any_horizontal(*exprs, ignore_nulls=ignore_nulls)) + + +def mean_horizontal(*exprs: IntoExpr | Iterable[IntoExpr]) -> Expr: + """Compute the mean of all values horizontally across columns. + + Arguments: + exprs: Name(s) of the columns to use in the aggregation function. Accepts + expression input. + """ + return _stableify(nw.mean_horizontal(*exprs)) + + +def min_horizontal(*exprs: IntoExpr | Iterable[IntoExpr]) -> Expr: + """Get the minimum value horizontally across columns. + + Notes: + We support `min_horizontal` over numeric columns only. + + Arguments: + exprs: Name(s) of the columns to use in the aggregation function. Accepts + expression input. + """ + return _stableify(nw.min_horizontal(*exprs)) + + +def max_horizontal(*exprs: IntoExpr | Iterable[IntoExpr]) -> Expr: + """Get the maximum value horizontally across columns. + + Notes: + We support `max_horizontal` over numeric columns only. + + Arguments: + exprs: Name(s) of the columns to use in the aggregation function. Accepts + expression input. + """ + return _stableify(nw.max_horizontal(*exprs)) + + +def corr( + a: IntoExpr, b: IntoExpr, method: Literal["pearson", "spearman"] = "pearson" +) -> Expr: + """Compute the Pearson's or Spearman rank correlation between two columns. + + Arguments: + a: Column name or Expression + b: Column name or Expression + method: Correlation method ('pearson' or 'spearman') + """ + return _stableify(nw.corr(a, b, method=method)) + + +def concat_str( + exprs: IntoExpr | Iterable[IntoExpr], + *more_exprs: IntoExpr, + separator: str = "", + ignore_nulls: bool = False, +) -> Expr: + r"""Horizontally concatenate columns into a single string column. + + Arguments: + exprs: Columns to concatenate into a single string column. Accepts expression + input. Strings are parsed as column names, other non-expression inputs are + parsed as literals. Non-`String` columns are cast to `String`. + *more_exprs: Additional columns to concatenate into a single string column, + specified as positional arguments. + separator: String that will be used to separate the values of each column. + ignore_nulls: Ignore null values (default is `False`). + If set to `False`, null values will be propagated and if the row contains any + null values, the output is null. + """ + return _stableify( + nw.concat_str(exprs, *more_exprs, separator=separator, ignore_nulls=ignore_nulls) + ) + + +def format(f_string: str, *args: IntoExpr) -> Expr: + """Format expressions as a string. + + Arguments: + f_string: A string that with placeholders. + args: Expression(s) that fill the placeholders. + """ + return _stableify(nw.format(f_string, *args)) + + +def coalesce(exprs: IntoExpr | Iterable[IntoExpr], *more_exprs: IntoExpr) -> Expr: + """Folds the columns from left to right, keeping the first non-null value. + + Arguments: + exprs: Columns to coalesce, must be a str, nw.Expr, or nw.Series + where strings are parsed as column names and both nw.Expr/nw.Series + are passed through as-is. Scalar values must be wrapped in `nw.lit`. + + *more_exprs: Additional columns to coalesce, specified as positional arguments. + + Raises: + TypeError: If any of the inputs are not a str, nw.Expr, or nw.Series. + """ + return _stableify(nw.coalesce(exprs, *more_exprs)) + + +class When(nw_f.When): + @classmethod + def from_when(cls, when: nw_f.When) -> When: + return cls(when._predicate) + + def then(self, value: IntoExpr | NonNestedLiteral | _1DArray) -> Then: + return Then.from_then(super().then(value)) + + +class Then(nw_f.Then, Expr): + @classmethod + def from_then(cls, then: nw_f.Then) -> Then: + return cls(*then._nodes) + + def otherwise(self, value: IntoExpr | NonNestedLiteral | _1DArray) -> Expr: + return _stableify(super().otherwise(value)) + + +def when(*predicates: IntoExpr | Iterable[IntoExpr]) -> When: + """Start a `when-then-otherwise` expression. + + Expression similar to an `if-else` statement in Python. Always initiated by a + `pl.when().then()`, and optionally followed by a + `.otherwise()` can be appended at the end. If not + appended, and the condition is not `True`, `None` will be returned. + + Info: + Chaining multiple `.when().then()` statements is currently + not supported. + See [Narwhals#668](https://github.com/narwhals-dev/narwhals/issues/668). + + Arguments: + predicates: Condition(s) that must be met in order to apply the subsequent + statement. Accepts one or more boolean expressions, which are implicitly + combined with `&`. String input is parsed as a column name. + + Returns: + A "when" object, which `.then` can be called on. + """ + return When.from_when(nw_f.when(*predicates)) + + +def new_series( + name: str, + values: Any, + dtype: IntoDType | None = None, + *, + backend: IntoBackend[EagerAllowed], +) -> Series[Any]: + """Instantiate Narwhals Series from iterable (e.g. list or array). + + Arguments: + name: Name of resulting Series. + values: Values of make Series from. + dtype: (Narwhals) dtype. If not provided, the native library + may auto-infer it from `values`. + backend: specifies which eager backend instantiate to. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + """ + return _stableify(_new_series_impl(name, values, dtype, backend=backend)) + + +def from_arrow( + native_frame: IntoArrowTable, *, backend: IntoBackend[EagerAllowed] +) -> DataFrame[Any]: + """Construct a DataFrame from an object which supports the PyCapsule Interface. + + Arguments: + native_frame: Object which implements `__arrow_c_stream__`. + backend: specifies which eager backend instantiate to. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + """ + return _stableify(nw_f.from_arrow(native_frame, backend=backend)) + + +def from_dict( + data: Mapping[str, Any], + schema: Mapping[str, DType] | Schema | None = None, + *, + backend: IntoBackend[EagerAllowed] | None = None, +) -> DataFrame[Any]: + """Instantiate DataFrame from dictionary. + + Indexes (if present, for pandas-like backends) are aligned following + the [left-hand-rule](../concepts/pandas_index.md/). + + Notes: + For pandas-like dataframes, conversion to schema is applied after dataframe + creation. + + Arguments: + data: Dictionary to create DataFrame from. + schema: The DataFrame schema as Schema or dict of {name: type}. If not + specified, the schema will be inferred by the native library. If + any `dtype` is `None`, the data type for that column will be inferred + by the native library. + backend: specifies which eager backend instantiate to. Only + necessary if inputs are not Narwhals Series. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + """ + return _stableify(nw_f.from_dict(data, schema, backend=backend)) + + +from_dicts: Final = DataFrame.from_dicts + + +def from_numpy( + data: _2DArray, + schema: Mapping[str, DType] | Schema | Sequence[str] | None = None, + *, + backend: IntoBackend[EagerAllowed], +) -> DataFrame[Any]: + """Construct a DataFrame from a NumPy ndarray. + + Notes: + Only row orientation is currently supported. + + For pandas-like dataframes, conversion to schema is applied after dataframe + creation. + + Arguments: + data: Two-dimensional data represented as a NumPy ndarray. + schema: The DataFrame schema as Schema, dict of {name: type}, or a sequence of str. + backend: specifies which eager backend instantiate to. + + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + """ + return _stableify(nw_f.from_numpy(data, schema, backend=backend)) + + +def read_csv( + source: str, + *, + backend: IntoBackend[EagerAllowed], + separator: str = ",", + **kwargs: Any, +) -> DataFrame[Any]: + """Read a CSV file into a DataFrame. + + Arguments: + source: Path to a file. + backend: The eager backend for DataFrame creation. + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + separator: Single byte character to use as separator in the file. + kwargs: Extra keyword arguments which are passed to the native CSV reader. + For example, you could use + `nw.read_csv('file.csv', backend='pandas', engine='pyarrow')`. + """ + return _stableify( + nw_f.read_csv(source, backend=backend, separator=separator, **kwargs) + ) + + +def scan_csv( + source: str, *, backend: IntoBackend[Backend], separator: str = ",", **kwargs: Any +) -> LazyFrame[Any]: + """Lazily read from a CSV file. + + For the libraries that do not support lazy dataframes, the function reads + a csv file eagerly and then converts the resulting dataframe to a lazyframe. + + Arguments: + source: Path to a file. + backend: The eager backend for DataFrame creation. + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + separator: Single byte character to use as separator in the file. + kwargs: Extra keyword arguments which are passed to the native CSV reader. + For example, you could use + `nw.scan_csv('file.csv', backend=pd, engine='pyarrow')`. + """ + return _stableify( + nw_f.scan_csv(source, backend=backend, separator=separator, **kwargs) + ) + + +def read_parquet( + source: str, *, backend: IntoBackend[EagerAllowed], **kwargs: Any +) -> DataFrame[Any]: + """Read into a DataFrame from a parquet file. + + Arguments: + source: Path to a file. + backend: The eager backend for DataFrame creation. + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN` or `CUDF`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"` or `"cudf"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin` or `cudf`. + kwargs: Extra keyword arguments which are passed to the native parquet reader. + For example, you could use + `nw.read_parquet('file.parquet', backend=pd, engine='pyarrow')`. + """ + return _stableify(nw_f.read_parquet(source, backend=backend, **kwargs)) + + +def scan_parquet( + source: str, *, backend: IntoBackend[Backend], **kwargs: Any +) -> LazyFrame[Any]: + """Lazily read from a parquet file. + + For the libraries that do not support lazy dataframes, the function reads + a parquet file eagerly and then converts the resulting dataframe to a lazyframe. + + Note: + Spark like backends require a session object to be passed in `kwargs`. + + For instance: + + ```py + import narwhals as nw + from sqlframe.duckdb import DuckDBSession + + nw.scan_parquet(source, backend="sqlframe", session=DuckDBSession()) + ``` + + Arguments: + source: Path to a file. + backend: The eager backend for DataFrame creation. + `backend` can be specified in various ways + + - As `Implementation.` with `BACKEND` being `PANDAS`, `PYARROW`, + `POLARS`, `MODIN`, `CUDF`, `PYSPARK` or `SQLFRAME`. + - As a string: `"pandas"`, `"pyarrow"`, `"polars"`, `"modin"`, `"cudf"`, + `"pyspark"` or `"sqlframe"`. + - Directly as a module `pandas`, `pyarrow`, `polars`, `modin`, `cudf`, + `pyspark.sql` or `sqlframe`. + kwargs: Extra keyword arguments which are passed to the native parquet reader. + For example, you could use + `nw.scan_parquet('file.parquet', backend=pd, engine='pyarrow')`. + """ + return _stableify(nw_f.scan_parquet(source, backend=backend, **kwargs)) + + +__all__ = [ + "Array", + "Binary", + "Boolean", + "Categorical", + "DataFrame", + "Date", + "Datetime", + "Decimal", + "Duration", + "Enum", + "Expr", + "Field", + "Float32", + "Float64", + "Implementation", + "Int8", + "Int16", + "Int32", + "Int64", + "Int128", + "LazyFrame", + "List", + "Object", + "Schema", + "Series", + "String", + "Struct", + "Time", + "UInt8", + "UInt16", + "UInt32", + "UInt64", + "UInt128", + "Unknown", + "all", + "all_horizontal", + "any_horizontal", + "coalesce", + "col", + "concat", + "concat_str", + "corr", + "dependencies", + "dtypes", + "dtypes", + "exceptions", + "exclude", + "format", + "from_arrow", + "from_dict", + "from_dicts", + "from_native", + "from_numpy", + "generate_temporary_column_name", + "get_native_namespace", + "is_ordered_categorical", + "len", + "lit", + "max", + "max_horizontal", + "maybe_align_index", + "maybe_convert_dtypes", + "maybe_get_index", + "maybe_reset_index", + "maybe_set_index", + "mean", + "mean_horizontal", + "median", + "min", + "min_horizontal", + "narwhalify", + "new_series", + "nth", + "read_csv", + "read_parquet", + "scan_csv", + "scan_parquet", + "selectors", + "selectors", + "show_versions", + "sum", + "sum_horizontal", + "to_native", + "to_py_scalar", + "when", +] diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/_namespace.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/_namespace.py new file mode 100644 index 0000000000000000000000000000000000000000..b30093cc6c339729b5d6f49b46515e1b1525c3f8 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/_namespace.py @@ -0,0 +1,10 @@ +from __future__ import annotations + +from narwhals._compliant.typing import CompliantNamespaceT_co +from narwhals._namespace import Namespace as NwNamespace +from narwhals._utils import Version + +__all__ = ["Namespace"] + + +class Namespace(NwNamespace[CompliantNamespaceT_co], version=Version.V2): ... diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/dependencies.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/dependencies.py new file mode 100644 index 0000000000000000000000000000000000000000..09dac9689283f5d30c56ad71bfadbba8cc811103 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/dependencies.py @@ -0,0 +1,3 @@ +from __future__ import annotations + +from narwhals.dependencies import * # noqa: F403 diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/dtypes.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/dtypes.py new file mode 100644 index 0000000000000000000000000000000000000000..b2d9cb0a21f6a1c0cb469b9aebc188cb844f171f --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/dtypes.py @@ -0,0 +1,3 @@ +from __future__ import annotations + +from narwhals.dtypes import * # noqa: F403 diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/selectors.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/selectors.py new file mode 100644 index 0000000000000000000000000000000000000000..79089a2761adc27d790f6cc108255875189591be --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/selectors.py @@ -0,0 +1,3 @@ +from __future__ import annotations + +from narwhals.selectors import * # noqa: F403 diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/typing.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/typing.py new file mode 100644 index 0000000000000000000000000000000000000000..c95a85b7870211e953234ca5da7a5b0aecaae432 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/stable/v2/typing.py @@ -0,0 +1,92 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Any, TypeVar, Union + +from narwhals._native import ( + IntoDataFrame, + IntoDataFrameT, + IntoFrame, + IntoFrameT, + IntoLazyFrame, + IntoLazyFrameT, + IntoSeries, + IntoSeriesT, +) + +if TYPE_CHECKING: + from typing_extensions import TypeAlias + + from narwhals.stable.v2 import DataFrame, Expr, LazyFrame, Series + + +IntoExpr: TypeAlias = Union["Expr", str, "Series[Any]"] +"""Anything which can be converted to an expression. + +Use this to mean "either a Narwhals expression, or something +which can be converted into one". For example, `exprs` in `DataFrame.select` is +typed to accept `IntoExpr`, as it can either accept a `nw.Expr` +(e.g. `df.select(nw.col('a'))`) or a string which will be interpreted as a +`nw.Expr`, e.g. `df.select('a')`. +""" + +Frame: TypeAlias = Union["DataFrame[Any]", "LazyFrame[Any]"] +"""Narwhals DataFrame or Narwhals LazyFrame. + +Use this if your function can work with either and your function doesn't care +about its backend. + +Examples: + >>> import narwhals as nw + >>> from narwhals.typing import Frame + >>> @nw.narwhalify + ... def agnostic_columns(df: Frame) -> list[str]: + ... return df.columns +""" + +FrameT = TypeVar("FrameT", "DataFrame[Any]", "LazyFrame[Any]") +"""TypeVar bound to Narwhals DataFrame or Narwhals LazyFrame. + +Use this if your function accepts either `nw.DataFrame` or `nw.LazyFrame` and returns +an object of the same kind. + +Examples: + >>> import narwhals as nw + >>> from narwhals.typing import FrameT + >>> @nw.narwhalify + ... def agnostic_func(df: FrameT) -> FrameT: + ... return df.with_columns(c=nw.col("a") + 1) +""" + +DataFrameT = TypeVar("DataFrameT", bound="DataFrame[Any]") +"""TypeVar bound to Narwhals DataFrame. + +Use this if your function can accept a Narwhals DataFrame and returns a Narwhals +DataFrame backed by the same backend. + +Examples: + >>> import narwhals as nw + >>> from narwhals.typing import DataFrameT + >>> @nw.narwhalify + >>> def func(df: DataFrameT) -> DataFrameT: + ... return df.with_columns(c=df["a"] + 1) +""" + +LazyFrameT = TypeVar("LazyFrameT", bound="LazyFrame[Any]") +SeriesT = TypeVar("SeriesT", bound="Series[Any]") + +__all__ = [ + "DataFrameT", + "Frame", + "FrameT", + "IntoDataFrame", + "IntoDataFrameT", + "IntoExpr", + "IntoFrame", + "IntoFrameT", + "IntoLazyFrame", + "IntoLazyFrameT", + "IntoSeries", + "IntoSeriesT", + "LazyFrameT", + "SeriesT", +] diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/testing/.___init__.py 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--git a/.venv_haddock/lib/python3.12/site-packages/narwhals/testing/asserts/frame.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/testing/asserts/frame.py new file mode 100644 index 0000000000000000000000000000000000000000..64eec42abc548645f3b87738845bdfa8ccef27aa --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/testing/asserts/frame.py @@ -0,0 +1,280 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Any + +from narwhals._utils import Implementation, qualified_type_name +from narwhals.dataframe import DataFrame, LazyFrame +from narwhals.dependencies import is_narwhals_dataframe, is_narwhals_lazyframe +from narwhals.testing.asserts.series import assert_series_equal +from narwhals.testing.asserts.utils import ( + raise_assertion_error, + raise_frame_assertion_error, +) + +if TYPE_CHECKING: + from narwhals._typing import Arrow, IntoBackend, Pandas, Polars + from narwhals.typing import DataFrameT, LazyFrameT + +GUARANTEES_ROW_ORDER = { + Implementation.PANDAS, + Implementation.MODIN, + Implementation.CUDF, + Implementation.PYARROW, + Implementation.POLARS, + Implementation.DASK, +} + + +def assert_frame_equal( + left: DataFrameT | LazyFrameT, + right: DataFrameT | LazyFrameT, + *, + check_row_order: bool = True, + check_column_order: bool = True, + check_dtypes: bool = True, + check_exact: bool = False, + rel_tol: float = 1e-5, + abs_tol: float = 1e-8, + categorical_as_str: bool = False, + backend: IntoBackend[Polars | Pandas | Arrow] | None = None, +) -> None: + """Assert that the left and right frames are equal. + + Raises a detailed `AssertionError` if the frames differ. + This function is intended for use in unit tests. + + Warning: + 1. In the case of backends that do not guarantee the row order, such as DuckDB, + Ibis, PySpark, and SQLFrame, `check_row_order` argument is ignored and the + comparands are sorted by all the columns regardless. + 2. In the case of lazy backends a [`collect(...)`](lazyframe.md#narwhals.dataframe.LazyFrame.collect) + operation is triggered. + + Arguments: + left: The first DataFrame or LazyFrame to compare. + right: The second DataFrame or LazyFrame to compare. + check_row_order: Requires row order to match. + + This flag is ignored for backends that do not guarantee row order such as + DuckDB, Ibis, PySpark, SQLFrame. + check_column_order: Requires column order to match. + check_dtypes: Requires data types to match. + check_exact: Requires float values to match exactly. If set to `False`, values are + considered equal when within tolerance of each other (see `rel_tol` and `abs_tol`). + + Only affects columns with a Float data type. + rel_tol: Relative tolerance for inexact checking. Fraction of values in `right`. + abs_tol: Absolute tolerance for inexact checking. + categorical_as_str: Cast categorical columns to string before comparing. + Enabling this helps compare columns that do not share the same string cache. + backend: Allows to specify which eager backend to collect to. + Check out [`narwhals.LazyFrame.collect`](lazyframe.md#narwhals.dataframe.LazyFrame.collect) + for more information. + + Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> from narwhals.testing import assert_frame_equal + >>> + >>> left_native = pl.LazyFrame({"a": [1, 2, 3]}) + >>> right_native = pl.LazyFrame({"a": [1, 5, 3]}) + >>> left = nw.from_native(left_native) + >>> right = nw.from_native(right_native) + >>> assert_frame_equal(left, right) # doctest: +ELLIPSIS + Traceback (most recent call last): + ... + AssertionError: DataFrames are different (value mismatch for column "a") + [left]: + ┌─────────────────┐ + | Narwhals Series | + |-----------------| + |shape: (3,) | + |Series: 'a' [i64]| + |[ | + | 1 | + | 2 | + | 3 | + |] | + └─────────────────┘ + [right]: + ┌─────────────────┐ + | Narwhals Series | + |-----------------| + |shape: (3,) | + |Series: 'a' [i64]| + |[ | + | 1 | + | 5 | + | 3 | + |] | + └─────────────────┘ + """ + __tracebackhide__ = True + + if any( + not (is_narwhals_dataframe(obj) or is_narwhals_lazyframe(obj)) + for obj in (left, right) + ): + msg = ( + "Expected `narwhals.DataFrame` or `narwhals.LazyFrame` instance, found:\n" + f"[left]: {qualified_type_name(type(left))}\n" + f"[right]: {qualified_type_name(type(right))}\n\n" + "Hint: Use `nw.from_native(obj, allow_series=False)` to convert each native " + "object into a `narwhals.DataFrame` or `narwhals.LazyFrame` first." + ) + raise TypeError(msg) + + left_impl, right_impl = left.implementation, right.implementation + if left_impl != right_impl: + raise_frame_assertion_error("implementation mismatch", left_impl, right_impl) + + left_eager, right_eager = _check_correct_input_type(left, right, backend=backend) + + _assert_dataframe_equal( + left=left_eager, + right=right_eager, + impl=left_impl, + check_row_order=check_row_order, + check_column_order=check_column_order, + check_dtypes=check_dtypes, + check_exact=check_exact, + rel_tol=rel_tol, + abs_tol=abs_tol, + categorical_as_str=categorical_as_str, + ) + + +def _check_correct_input_type( # noqa: RET503 + left: DataFrameT | LazyFrameT, + right: DataFrameT | LazyFrameT, + backend: IntoBackend[Polars | Pandas | Arrow] | None, +) -> tuple[DataFrame[Any], DataFrame[Any]]: + # Adapted from https://github.com/pola-rs/polars/blob/afdbf3056d1228cf493901e45f536b0905cec8ea/py-polars/src/polars/testing/asserts/frame.py#L15-L17 + if isinstance(left, DataFrame) and isinstance(right, DataFrame): + return left, right + + if isinstance(left, LazyFrame) and isinstance(right, LazyFrame): + return left.collect(backend), right.collect(backend) + + raise_assertion_error( + "inputs", + "unexpected input types", + left=type(left).__name__, + right=type(right).__name__, + ) + + +def _assert_dataframe_equal( + left: DataFrameT, + right: DataFrameT, + impl: Implementation, + *, + check_row_order: bool, + check_column_order: bool, + check_dtypes: bool, + check_exact: bool, + rel_tol: float, + abs_tol: float, + categorical_as_str: bool, +) -> None: + # Adapted from https://github.com/pola-rs/polars/blob/afdbf3056d1228cf493901e45f536b0905cec8ea/crates/polars-testing/src/asserts/utils.rs#L829 + # NOTE: Here `impl` comes from the original dataframe, not the `.collect`-ed one, and + # it's used to distinguish between backends that do and do not guarantee row order. + _check_schema_equal( + left, right, check_dtypes=check_dtypes, check_column_order=check_column_order + ) + + left_len, right_len = len(left), len(right) + if left_len != right_len: + raise_frame_assertion_error("height (row count) mismatch", left_len, right_len) + + if left_len == 0: # Return early due to same schema but no values + return + + left_schema = left.schema + if (not check_row_order) or (impl not in GUARANTEES_ROW_ORDER): + # !NOTE: Sort by all the non-nested dtypes columns. + # See: https://github.com/narwhals-dev/narwhals/issues/2939 + # !WARNING: This might lead to wrong results if there are duplicate values in the + # sorting columns as the final order might still be non fully deterministic. + sort_by = [name for name, dtype in left_schema.items() if not dtype.is_nested()] + + if not sort_by: + # If only nested dtypes are available, then we raise an exception. + msg = "`check_row_order=False` is not supported (yet) with only nested data type." + raise NotImplementedError(msg) + + left = left.sort(sort_by) + right = right.sort(sort_by) + + for col_name in left_schema.names(): + _series_left = left.get_column(col_name) + _series_right = right.get_column(col_name) + try: + assert_series_equal( + _series_left, + _series_right, + check_dtypes=False, + check_names=False, + check_order=True, + check_exact=check_exact, + rel_tol=rel_tol, + abs_tol=abs_tol, + categorical_as_str=categorical_as_str, + ) + except AssertionError: + raise_frame_assertion_error( + detail="value mismatch for column", + left=_series_left, + right=_series_right, + detail_suffix=f' "{col_name}"', + ) + + +def _check_schema_equal( + left: DataFrameT, right: DataFrameT, *, check_dtypes: bool, check_column_order: bool +) -> None: + """Compares DataFrame schema based on specified criteria. + + Adapted from https://github.com/pola-rs/polars/blob/afdbf3056d1228cf493901e45f536b0905cec8ea/crates/polars-testing/src/asserts/utils.rs#L667-L698 + """ + lschema, rschema = left.schema, right.schema + + # Fast path for equal DataFrames + if lschema == rschema: + return + + lnames, rnames = lschema.names(), rschema.names() + lset, rset = set(lnames), set(rnames) + + if left_not_in_right := sorted(lset.difference(rset)): + raise_frame_assertion_error( + detail="in left, but not in right", + left=lset, + right=rset, + detail_prefix=f"{left_not_in_right} ", + ) + if right_not_in_left := sorted(rset.difference(lset)): + raise_frame_assertion_error( + detail="in right, but not in left", + left=lset, + right=rset, + detail_prefix=f"{right_not_in_left} ", + ) + + if check_column_order and lnames != rnames: + raise_frame_assertion_error( + detail="columns are not in the same order", left=lnames, right=rnames + ) + + if check_dtypes: + rdtypes = ( + rschema.dtypes() + if check_column_order + else [rschema[col_name] for col_name in lnames] + ) + + if (ldtypes := lschema.dtypes()) != rdtypes: + raise_frame_assertion_error( + detail="dtypes do not match", left=ldtypes, right=rdtypes + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/testing/asserts/series.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/testing/asserts/series.py new file mode 100644 index 0000000000000000000000000000000000000000..1408da030927f5ebd680a9017df792c467ace617 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/testing/asserts/series.py @@ -0,0 +1,291 @@ +from __future__ import annotations + +from functools import partial +from typing import TYPE_CHECKING, Any, Callable + +from narwhals._utils import qualified_type_name, zip_strict +from narwhals.dependencies import is_narwhals_series +from narwhals.dtypes import Array, Boolean, Categorical, List, String, Struct +from narwhals.functions import new_series +from narwhals.testing.asserts.utils import raise_series_assertion_error + +if TYPE_CHECKING: + from typing_extensions import TypeAlias + + from narwhals.series import Series + from narwhals.typing import IntoSeriesT, SeriesT + + CheckFn: TypeAlias = Callable[[Series[Any], Series[Any]], None] + + +def assert_series_equal( + left: Series[IntoSeriesT], + right: Series[IntoSeriesT], + *, + check_dtypes: bool = True, + check_names: bool = True, + check_order: bool = True, + check_exact: bool = False, + rel_tol: float = 1e-05, + abs_tol: float = 1e-08, + categorical_as_str: bool = False, +) -> None: + """Assert that the left and right Series are equal. + + Raises a detailed `AssertionError` if the Series differ. + This function is intended for use in unit tests. + + Arguments: + left: The first Series to compare. + right: The second Series to compare. + check_dtypes: Requires data types to match. + check_names: Requires names to match. + check_order: Requires elements to appear in the same order. + check_exact: Requires float values to match exactly. If set to `False`, values are + considered equal when within tolerance of each other (see `rel_tol` and + `abs_tol`). Only affects columns with a Float data type. + rel_tol: Relative tolerance for inexact checking, given as a fraction of the + values in `right`. + abs_tol: Absolute tolerance for inexact checking. + categorical_as_str: Cast categorical columns to string before comparing. + Enabling this helps compare columns that do not share the same string cache. + + Examples: + >>> import pandas as pd + >>> import narwhals as nw + >>> from narwhals.testing import assert_series_equal + >>> s1 = nw.from_native(pd.Series([1, 2, 3]), series_only=True) + >>> s2 = nw.from_native(pd.Series([1, 5, 3]), series_only=True) + >>> assert_series_equal(s1, s2) # doctest: +ELLIPSIS + Traceback (most recent call last): + ... + AssertionError: Series are different (exact value mismatch) + [left]: + ┌───────────────┐ + |Narwhals Series| + |---------------| + | 0 1 | + | 1 2 | + | 2 3 | + | dtype: int64 | + └───────────────┘ + [right]: + ┌───────────────┐ + |Narwhals Series| + |---------------| + | 0 1 | + | 1 5 | + | 2 3 | + | dtype: int64 | + └───────────────┘ + """ + __tracebackhide__ = True + + if any(not is_narwhals_series(obj) for obj in (left, right)): + msg = ( + "Expected `narwhals.Series` instance, found:\n" + f"[left]: {qualified_type_name(type(left))}\n" + f"[right]: {qualified_type_name(type(right))}\n\n" + "Hint: Use `nw.from_native(obj, series_only=True) to convert each native " + "object into a `narwhals.Series` first." + ) + raise TypeError(msg) + + _check_metadata(left, right, check_dtypes=check_dtypes, check_names=check_names) + + if not check_order: + if left.dtype.is_nested(): + msg = "`check_order=False` is not supported (yet) with nested data type." + raise NotImplementedError(msg) + left, right = left.sort(), right.sort() + + left_vals, right_vals = _check_null_values(left, right) + + if check_exact or not left.dtype.is_float(): + _check_exact_values( + left_vals, + right_vals, + check_dtypes=check_dtypes, + check_exact=check_exact, + rel_tol=rel_tol, + abs_tol=abs_tol, + categorical_as_str=categorical_as_str, + ) + else: + _check_approximate_values(left_vals, right_vals, rel_tol=rel_tol, abs_tol=abs_tol) + + +def _check_metadata( + left: SeriesT, right: SeriesT, *, check_dtypes: bool, check_names: bool +) -> None: + """Check metadata information: implementation, length, dtype, and names.""" + left_impl, right_impl = left.implementation, right.implementation + if left_impl != right_impl: + raise_series_assertion_error("implementation mismatch", left_impl, right_impl) + + left_len, right_len = len(left), len(right) + if left_len != right_len: + raise_series_assertion_error("length mismatch", left_len, right_len) + + left_dtype, right_dtype = left.dtype, right.dtype + if check_dtypes and left_dtype != right_dtype: + raise_series_assertion_error("dtype mismatch", left_dtype, right_dtype) + + left_name, right_name = left.name, right.name + if check_names and left_name != right_name: + raise_series_assertion_error("name mismatch", left_name, right_name) + + +def _check_null_values(left: SeriesT, right: SeriesT) -> tuple[SeriesT, SeriesT]: + """Check null value consistency and return non-null values.""" + left_null_count, right_null_count = left.null_count(), right.null_count() + left_null_mask, right_null_mask = left.is_null(), right.is_null() + + if left_null_count != right_null_count or (left_null_mask != right_null_mask).any(): + raise_series_assertion_error( + "null value mismatch", left_null_count, right_null_count + ) + + return left.filter(~left_null_mask), right.filter(~right_null_mask) + + +def _check_exact_values( + left: SeriesT, + right: SeriesT, + *, + check_dtypes: bool, + check_exact: bool, + rel_tol: float, + abs_tol: float, + categorical_as_str: bool, +) -> None: + """Check exact value equality for various data types.""" + left_impl = left.implementation + left_dtype, right_dtype = left.dtype, right.dtype + + is_not_equal_mask: Series[Any] + if left_dtype.is_numeric(): + # For _all_ numeric dtypes, we can use `is_close` with 0-tolerances to handle + # inf and nan values out of the box. + is_not_equal_mask = ~left.is_close(right, rel_tol=0, abs_tol=0, nans_equal=True) + elif ( + isinstance(left_dtype, (Array, List)) and isinstance(right_dtype, (Array, List)) + ) and left_dtype == right_dtype: + check_fn = partial( + assert_series_equal, + check_dtypes=check_dtypes, + check_names=False, + check_order=True, + check_exact=check_exact, + rel_tol=rel_tol, + abs_tol=abs_tol, + categorical_as_str=categorical_as_str, + ) + _check_list_like(left, right, left_dtype, right_dtype, check_fn=check_fn) + # If `_check_list_like` didn't raise, then every nested element is equal + is_not_equal_mask = new_series("", [False], dtype=Boolean(), backend=left_impl) + elif isinstance(left_dtype, Struct) and isinstance(right_dtype, Struct): + check_fn = partial( + assert_series_equal, + check_dtypes=True, + check_names=True, + check_order=True, + check_exact=check_exact, + rel_tol=rel_tol, + abs_tol=abs_tol, + categorical_as_str=categorical_as_str, + ) + _check_struct(left, right, left_dtype, right_dtype, check_fn=check_fn) + # If `_check_struct` didn't raise, then every nested element is equal + is_not_equal_mask = new_series("", [False], dtype=Boolean(), backend=left_impl) + elif isinstance(left_dtype, Categorical) and isinstance(right_dtype, Categorical): + # If `_check_categorical` didn't raise, then the categories sources/encodings are + # the same, and we can use equality + _not_equal = _check_categorical( + left, right, categorical_as_str=categorical_as_str + ) + is_not_equal_mask = new_series( + "", [_not_equal], dtype=Boolean(), backend=left_impl + ) + else: + is_not_equal_mask = left != right + + if is_not_equal_mask.any(): + raise_series_assertion_error("exact value mismatch", left, right) + + +def _check_approximate_values( + left: SeriesT, right: SeriesT, *, rel_tol: float, abs_tol: float +) -> None: + """Check approximate value equality with tolerance.""" + is_not_close_mask = ~left.is_close( + right, rel_tol=rel_tol, abs_tol=abs_tol, nans_equal=True + ) + + if is_not_close_mask.any(): + raise_series_assertion_error( + "values not within tolerance", + left.filter(is_not_close_mask), + right.filter(is_not_close_mask), + ) + + +def _check_list_like( + left_vals: SeriesT, + right_vals: SeriesT, + left_dtype: List | Array, + right_dtype: List | Array, + check_fn: CheckFn, +) -> None: + # Check row by row after transforming each array/list into a new series. + # Notice that order within the array/list must be the same, regardless of + # `check_order` value at the top level. + impl = left_vals.implementation + try: + for left_val, right_val in zip_strict(left_vals, right_vals): + check_fn( + new_series("", values=left_val, dtype=left_dtype.inner, backend=impl), + new_series("", values=right_val, dtype=right_dtype.inner, backend=impl), + ) + except AssertionError: + raise_series_assertion_error("nested value mismatch", left_vals, right_vals) + + +def _check_struct( + left_vals: SeriesT, + right_vals: SeriesT, + left_dtype: Struct, + right_dtype: Struct, + check_fn: CheckFn, +) -> None: + # Check field by field as a separate column. + # Notice that for struct's polars raises if: + # * field names are different but values are equal + # * dtype differs, regardless of `check_dtypes=False` + # * order applies only at top level + try: + for left_field, right_field in zip_strict(left_dtype.fields, right_dtype.fields): + check_fn( + left_vals.struct.field(left_field.name), + right_vals.struct.field(right_field.name), + ) + except AssertionError: + raise_series_assertion_error("exact value mismatch", left_vals, right_vals) + + +def _check_categorical( + left_vals: SeriesT, right_vals: SeriesT, *, categorical_as_str: bool +) -> bool: + """Try to compare if any element of categorical series' differ. + + Inability to compare means that the encoding is different, and an exception is raised. + """ + if categorical_as_str: + left_vals, right_vals = left_vals.cast(String()), right_vals.cast(String()) + + try: + return (left_vals != right_vals).any() + except Exception as exc: + msg = "Cannot compare categoricals coming from different sources." + # TODO(FBruzzesi): Improve error message? + raise AssertionError(msg) from exc diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/testing/asserts/utils.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/testing/asserts/utils.py new file mode 100644 index 0000000000000000000000000000000000000000..75528e454a03fe30c88eebd3b578463990b05455 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/testing/asserts/utils.py @@ -0,0 +1,74 @@ +from __future__ import annotations + +from typing import TYPE_CHECKING, Any, Literal + +from narwhals.dependencies import is_narwhals_series + +if TYPE_CHECKING: + from typing_extensions import Never, TypeAlias + + # NOTE: These aliases are created to facilitate autocompletion. + # Feel free to extend them as you please when adding new features. + # See: https://github.com/narwhals-dev/narwhals/pull/2983#discussion_r2337548736 + ObjectName: TypeAlias = Literal["inputs", "Series", "DataFrames"] + SeriesDetail: TypeAlias = Literal[ + "dtype mismatch", + "exact value mismatch", + "implementation mismatch", + "length mismatch", + "name mismatch", + "nested value mismatch", + "null value mismatch", + "values not within tolerance", + ] + DataFramesDetail: TypeAlias = Literal[ + "columns are not in the same order", + "dtypes do not match", + "height (row count) mismatch", + "implementation mismatch", + "in left, but not in right", + "in right, but not in left", + "value mismatch for column", + ] + + +def raise_assertion_error( + objects: ObjectName, + detail: str, + left: Any, + right: Any, + *, + cause: Exception | None = None, +) -> Never: + """Raise a detailed assertion error.""" + __tracebackhide__ = True + + trailing_left = "\n" if is_narwhals_series(left) else " " + trailing_right = "\n" if is_narwhals_series(right) else " " + + msg = ( + f"{objects} are different ({detail})\n" + f"[left]:{trailing_left}{left}\n" + f"[right]:{trailing_right}{right}" + ) + raise AssertionError(msg) from cause + + +def raise_series_assertion_error( + detail: SeriesDetail, left: Any, right: Any, *, cause: Exception | None = None +) -> Never: + raise_assertion_error("Series", detail, left, right, cause=cause) + + +def raise_frame_assertion_error( + detail: DataFramesDetail, + left: Any, + right: Any, + *, + detail_prefix: str = "", + detail_suffix: str = "", + cause: Exception | None = None, +) -> Never: + raise_assertion_error( + "DataFrames", f"{detail_prefix}{detail}{detail_suffix}", left, right, cause=cause + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/this.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/this.py new file mode 100644 index 0000000000000000000000000000000000000000..8ba7aa2617dc96d27eda1d30a969d50d9051fb74 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/this.py @@ -0,0 +1,17 @@ +# ruff: noqa +ZEN = """\ +⣿⣿⣿⣿⣿⠘⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ THE ZEN OF NARWHALS +⣿⣿⣿⣿⣿⠠⢹⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ Keep it simple +⣿⣿⣿⣿⣿⡀⡄⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ Move slowly and keep things working +⣿⣿⣿⣿⣿⡇⡼⡘⠛⠿⠿⠿⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ A good API is an honest one +⣿⣿⣿⡿⣫⡄⠾⣣⠹⣿⣿⣿⣶⣮⣙⠻⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ Yes, that needs documenting +⣿⣿⢋⣴⣿⣷⣬⣭⣾⣿⣿⣿⣿⣿⣿⣿⣦⡙⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ People learn better from examples +⣿⢃⣾⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⡌⢿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ than from explanations⠀ +⡏⠀⢰⠄⢻⣿⣿⣿⣿⡿⠋⢉⠻⣿⣿⣿⣿⣿⣿⡜⣿⣿⡿⢁⢻⣿⣿⣿⣿⣿ If in doubt, better to say 'no' +⡇⣌⣀⣠⣾⣿⣿⣿⣿⣇⠶⠉⢁⣿⣿⣿⣿⣿⣿⣧⡹⣿⡇⣿⣧⠻⠿⠿⠿⠿ than to risk causing a commotion⠀ +⡧⢹⣿⣿⣿⣜⣟⣸⣿⣿⣷⣶⣿⡿⣿⣿⣝⢿⣿⣿⣷⣬⣥⣿⣿⣿⣿⣿⡟⣰ Yes, we need a test for that +⢡⣆⢻⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿⣧⡙⣿⣿⡇⣿⣿⣿⣿⠟⣋⣭⣛⠻⣋⣴⣿ If you want users +⣶⣤⣤⣙⠻⣿⣿⣿⣿⣿⣿⣿⣿⣿⣷⣦⣍⣡⣿⡿⢋⣴⣿⣿⣿⣿⣿⣿⣿⣿ you need good docs⠀ +⣿⣿⣿⣿⣿⣶⣬⣙⣛⠻⠿⠿⠿⠿⠿⠟⣛⣩⣥⣶⣿⣿⣿⣿⣿⣿⣿⣿⣿⣿ Our code is not irreplaceable""" + +print(ZEN) diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/translate.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/translate.py new file mode 100644 index 0000000000000000000000000000000000000000..9452111bdd6f5add33b36d522c886961075a5af0 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/translate.py @@ -0,0 +1,692 @@ +from __future__ import annotations + +import datetime as dt +from decimal import Decimal +from functools import wraps +from typing import TYPE_CHECKING, Any, Callable, Literal, TypeVar, overload + +from narwhals import plugins +from narwhals._constants import EPOCH, MS_PER_SECOND +from narwhals._native import ( + is_native_arrow, + is_native_pandas_like, + is_native_polars, + is_native_spark_like, +) +from narwhals._utils import ( + Implementation, + Version, + has_native_namespace, + is_compliant_dataframe, + is_compliant_lazyframe, + is_compliant_series, +) +from narwhals.dependencies import ( + get_dask_expr, + get_numpy, + get_pandas, + is_cupy_scalar, + is_dask_dataframe, + is_duckdb_relation, + is_ibis_table, + is_numpy_scalar, + is_pandas_like_dataframe, + is_polars_lazyframe, + is_polars_series, + is_pyarrow_scalar, + is_pyarrow_table, +) + +if TYPE_CHECKING: + from typing_extensions import Unpack + + from narwhals._translate import ( + AllowAny, + AllowLazy, + AllowSeries, + ExcludeSeries, + OnlySeries, + PassThroughUnknown, + ) + from narwhals.dataframe import DataFrame, LazyFrame + from narwhals.series import Series + from narwhals.typing import ( + DataFrameT, + Frame, + IntoDataFrameT, + IntoFrame, + IntoLazyFrameT, + IntoSeries, + IntoSeriesT, + LazyFrameT, + SeriesT, + ) + +T = TypeVar("T") + +NON_TEMPORAL_SCALAR_TYPES = (bool, bytes, str, int, float, complex, Decimal) +TEMPORAL_SCALAR_TYPES = (dt.date, dt.timedelta, dt.time) + + +@overload +def to_native( + narwhals_object: DataFrame[IntoDataFrameT], *, pass_through: Literal[False] = ... +) -> IntoDataFrameT: ... +@overload +def to_native( + narwhals_object: LazyFrame[IntoLazyFrameT], *, pass_through: Literal[False] = ... +) -> IntoLazyFrameT: ... +@overload +def to_native( + narwhals_object: Series[IntoSeriesT], *, pass_through: Literal[False] = ... +) -> IntoSeriesT: ... +@overload +def to_native(narwhals_object: Any, *, pass_through: bool) -> Any: ... + + +def to_native( + narwhals_object: DataFrame[IntoDataFrameT] + | LazyFrame[IntoLazyFrameT] + | Series[IntoSeriesT], + *, + pass_through: bool = False, +) -> IntoDataFrameT | IntoLazyFrameT | IntoSeriesT | Any: + """Convert Narwhals object to native one. + + Arguments: + narwhals_object: Narwhals object. + pass_through: Determine what happens if `narwhals_object` isn't a Narwhals class + + - `False` (default): raise an error + - `True`: pass object through as-is + + Returns: + Object of class that user started with. + """ + from narwhals.dataframe import BaseFrame + from narwhals.series import Series + + if isinstance(narwhals_object, BaseFrame): + return narwhals_object._compliant_frame._native_frame + if isinstance(narwhals_object, Series): + return narwhals_object._compliant_series.native + + if not pass_through: + msg = f"Expected Narwhals object, got {type(narwhals_object)}." + raise TypeError(msg) + return narwhals_object + + +@overload +def from_native(native_object: SeriesT, **kwds: Unpack[OnlySeries]) -> SeriesT: ... +@overload +def from_native(native_object: SeriesT, **kwds: Unpack[AllowSeries]) -> SeriesT: ... +@overload +def from_native( + native_object: DataFrameT, **kwds: Unpack[ExcludeSeries] +) -> DataFrameT: ... +# Closer to *intended* than https://github.com/narwhals-dev/narwhals/issues/3226 +@overload +def from_native(native_object: LazyFrameT, **kwds: Unpack[AllowLazy]) -> LazyFrameT: ... +@overload +def from_native( + native_object: IntoDataFrameT, **kwds: Unpack[ExcludeSeries] +) -> DataFrame[IntoDataFrameT]: ... +@overload +def from_native( + native_object: IntoSeriesT, **kwds: Unpack[OnlySeries] +) -> Series[IntoSeriesT]: ... +@overload +def from_native( + native_object: IntoSeriesT, **kwds: Unpack[AllowSeries] +) -> Series[IntoSeriesT]: ... +@overload +def from_native( + native_object: IntoLazyFrameT, **kwds: Unpack[AllowLazy] +) -> LazyFrame[IntoLazyFrameT]: ... +@overload +def from_native( + native_object: IntoDataFrameT | IntoSeriesT, **kwds: Unpack[AllowSeries] +) -> DataFrame[IntoDataFrameT] | Series[IntoSeriesT]: ... +@overload +def from_native( + native_object: IntoDataFrameT | IntoLazyFrameT | IntoSeriesT, **kwds: Unpack[AllowAny] +) -> DataFrame[IntoDataFrameT] | LazyFrame[IntoLazyFrameT] | Series[IntoSeriesT]: ... +@overload +def from_native(native_object: T, **kwds: Unpack[PassThroughUnknown]) -> T: ... +# All params passed in as variables +@overload +def from_native( + native_object: Any, + *, + pass_through: bool, + eager_only: bool, + series_only: bool, + allow_series: bool | None, +) -> Any: ... +def from_native( + native_object: IntoLazyFrameT + | IntoDataFrameT + | IntoSeriesT + | IntoFrame + | IntoSeries + | T, + *, + pass_through: bool = False, + eager_only: bool = False, + series_only: bool = False, + allow_series: bool | None = None, +) -> LazyFrame[IntoLazyFrameT] | DataFrame[IntoDataFrameT] | Series[IntoSeriesT] | T: + """Convert `native_object` to Narwhals Dataframe, Lazyframe, or Series. + + Arguments: + native_object: Raw object from user. + Depending on the other arguments, input object can be + + - a Dataframe / Lazyframe / Series supported by Narwhals (pandas, Polars, PyArrow, ...) + - an object which implements `__narwhals_dataframe__`, `__narwhals_lazyframe__`, + or `__narwhals_series__` + pass_through: Determine what happens if the object can't be converted to Narwhals + + - `False` (default): raise an error + - `True`: pass object through as-is + eager_only: Whether to only allow eager objects + + - `False` (default): don't require `native_object` to be eager + - `True`: only convert to Narwhals if `native_object` is eager + series_only: Whether to only allow Series + + - `False` (default): don't require `native_object` to be a Series + - `True`: only convert to Narwhals if `native_object` is a Series + allow_series: Whether to allow Series (default is only Dataframe / Lazyframe) + + - `False` or `None` (default): don't convert to Narwhals if `native_object` is a Series + - `True`: allow `native_object` to be a Series + + Returns: + DataFrame, LazyFrame, Series, or original object, depending + on which combination of parameters was passed. + """ + return _from_native_impl( # type: ignore[no-any-return] + native_object, + pass_through=pass_through, + eager_only=eager_only, + eager_or_interchange_only=False, + series_only=series_only, + allow_series=allow_series, + version=Version.MAIN, + ) + + +def _translate_if_compliant( # noqa: C901,PLR0911 + compliant_object: Any, + *, + pass_through: bool = False, + eager_only: bool = False, + # Interchange-level was removed after v1 + eager_or_interchange_only: bool, + series_only: bool, + allow_series: bool | None, + version: Version, +) -> Any: + if is_compliant_dataframe(compliant_object): + if series_only: + if not pass_through: + msg = "Cannot only use `series_only` with dataframe" + raise TypeError(msg) + return compliant_object + return version.dataframe( + compliant_object.__narwhals_dataframe__()._with_version(version), level="full" + ) + if is_compliant_lazyframe(compliant_object): + if series_only: + if not pass_through: + msg = "Cannot only use `series_only` with lazyframe" + raise TypeError(msg) + return compliant_object + if eager_only or eager_or_interchange_only: + if not pass_through: + msg = "Cannot only use `eager_only` or `eager_or_interchange_only` with lazyframe" + raise TypeError(msg) + return compliant_object + return version.lazyframe( + compliant_object.__narwhals_lazyframe__()._with_version(version), level="full" + ) + if is_compliant_series(compliant_object): + if not allow_series: + if not pass_through: + msg = "Please set `allow_series=True` or `series_only=True`" + raise TypeError(msg) + return compliant_object + return version.series( + compliant_object.__narwhals_series__()._with_version(version), level="full" + ) + # Object wasn't compliant, can't translate here. + return None + + +def _from_native_impl( # noqa: C901, PLR0911, PLR0912, PLR0915 + native_object: Any, + *, + pass_through: bool = False, + eager_only: bool = False, + # Interchange-level was removed after v1 + eager_or_interchange_only: bool, + series_only: bool, + allow_series: bool | None, + version: Version, +) -> Any: + from narwhals._interchange.dataframe import supports_dataframe_interchange + from narwhals.dataframe import DataFrame, LazyFrame + from narwhals.series import Series + + # Early returns + if isinstance(native_object, (DataFrame, LazyFrame)) and not series_only: + if native_object._version is version: + return native_object + + real_native_object = native_object.to_native() + return ( + version.namespace.from_native_object(real_native_object) + .compliant.from_native(real_native_object) + .to_narwhals() + ) + if isinstance(native_object, Series) and (series_only or allow_series): + if native_object._version is version: + return native_object + + real_native_object = native_object.to_native() + return ( + version.namespace.from_native_object(real_native_object) + .compliant.from_native(real_native_object) + .to_narwhals() + ) + + if series_only: + if allow_series is False: + msg = "Invalid parameter combination: `series_only=True` and `allow_series=False`" + raise ValueError(msg) + allow_series = True + if eager_only and eager_or_interchange_only: + msg = "Invalid parameter combination: `eager_only=True` and `eager_or_interchange_only=True`" + raise ValueError(msg) + + # Extensions + if ( + translated := _translate_if_compliant( + native_object, + pass_through=pass_through, + eager_only=eager_only, + eager_or_interchange_only=eager_or_interchange_only, + series_only=series_only, + allow_series=allow_series, + version=version, + ) + ) is not None: + return translated + + # Polars + if is_native_polars(native_object): + if series_only and not is_polars_series(native_object): + if not pass_through: + msg = f"Cannot only use `series_only` with {type(native_object).__qualname__}" + raise TypeError(msg) + return native_object + if (eager_only or eager_or_interchange_only) and is_polars_lazyframe( + native_object + ): + if not pass_through: + msg = "Cannot only use `eager_only` or `eager_or_interchange_only` with polars.LazyFrame" + raise TypeError(msg) + return native_object + if (not allow_series) and is_polars_series(native_object): + if not pass_through: + msg = "Please set `allow_series=True` or `series_only=True`" + raise TypeError(msg) + return native_object + return ( + version.namespace.from_native_object(native_object) + .compliant.from_native(native_object) + .to_narwhals() + ) + + # PandasLike + if is_native_pandas_like(native_object): + if is_pandas_like_dataframe(native_object): + if series_only: + if not pass_through: + msg = f"Cannot only use `series_only` with {type(native_object).__qualname__}" + raise TypeError(msg) + return native_object + elif not allow_series: + if not pass_through: + msg = "Please set `allow_series=True` or `series_only=True`" + raise TypeError(msg) + return native_object + return ( + version.namespace.from_native_object(native_object) + .compliant.from_native(native_object) + .to_narwhals() + ) + + # PyArrow + if is_native_arrow(native_object): + if is_pyarrow_table(native_object): + if series_only: + if not pass_through: + msg = f"Cannot only use `series_only` with {type(native_object).__qualname__}" + raise TypeError(msg) + return native_object + elif not allow_series: + if not pass_through: + msg = "Please set `allow_series=True` or `series_only=True`" + raise TypeError(msg) + return native_object + return ( + version.namespace.from_native_object(native_object) + .compliant.from_native(native_object) + .to_narwhals() + ) + + # Dask + if is_dask_dataframe(native_object): + if series_only: + if not pass_through: + msg = "Cannot only use `series_only` with dask DataFrame" + raise TypeError(msg) + return native_object + if eager_only or eager_or_interchange_only: + if not pass_through: + msg = "Cannot only use `eager_only` or `eager_or_interchange_only` with dask DataFrame" + raise TypeError(msg) + return native_object + if ( + Implementation.DASK._backend_version() <= (2024, 12, 1) + and get_dask_expr() is None + ): # pragma: no cover + msg = "Please install dask-expr" + raise ImportError(msg) + return ( + version.namespace.from_backend(Implementation.DASK) + .compliant.from_native(native_object) + .to_narwhals() + ) + + # DuckDB + if is_duckdb_relation(native_object): + if eager_only or series_only: # pragma: no cover + if not pass_through: + msg = "Cannot only use `series_only=True` or `eager_only=False` with DuckDBPyRelation" + raise TypeError(msg) + return native_object + return ( + version.namespace.from_native_object(native_object) + .compliant.from_native(native_object) + .to_narwhals() + ) + + # Ibis + if is_ibis_table(native_object): + if eager_only or series_only: # pragma: no cover + if not pass_through: + msg = "Cannot only use `series_only=True` or `eager_only=False` with ibis.Table" + raise TypeError(msg) + return native_object + return ( + version.namespace.from_native_object(native_object) + .compliant.from_native(native_object) + .to_narwhals() + ) + + # PySpark + if is_native_spark_like(native_object): # pragma: no cover + ns_spark = version.namespace.from_native_object(native_object) + if series_only or eager_only or eager_or_interchange_only: + if not pass_through: + msg = ( + "Cannot only use `series_only`, `eager_only` or `eager_or_interchange_only` " + f"with {ns_spark.implementation} DataFrame" + ) + raise TypeError(msg) + return native_object + return ns_spark.compliant.from_native(native_object).to_narwhals() + + # Interchange protocol + if version is Version.V1 and supports_dataframe_interchange(native_object): + from narwhals._interchange.dataframe import InterchangeFrame + + if eager_only or series_only: + if not pass_through: + msg = ( + "Cannot only use `series_only=True` or `eager_only=False` " + "with object which only implements __dataframe__" + ) + raise TypeError(msg) + return native_object + return Version.V1.dataframe(InterchangeFrame(native_object), level="interchange") + + if (compliant_object := plugins.from_native(native_object, version)) is not None: + return _translate_if_compliant( + compliant_object, + pass_through=pass_through, + eager_only=eager_only, + eager_or_interchange_only=eager_or_interchange_only, + series_only=series_only, + allow_series=allow_series, + version=version, + ) + + if not pass_through: + msg = f"Unsupported dataframe type, got: {type(native_object)}" + if hint := plugins._show_suggestions(type(native_object)): # pragma: no cover + msg += "\n\n" + hint + raise TypeError(msg) + return native_object + + +def get_native_namespace(*obj: Frame | Series[Any] | IntoFrame | IntoSeries) -> Any: + """Get native namespace from object. + + Arguments: + obj: Dataframe, Lazyframe, or Series. Multiple objects can be + passed positionally, in which case they must all have the + same native namespace (else an error is raised). + + Returns: + Native module. + + Examples: + >>> import polars as pl + >>> import pandas as pd + >>> import narwhals as nw + >>> df = nw.from_native(pd.DataFrame({"a": [1, 2, 3]})) + >>> nw.get_native_namespace(df) + + >>> df = nw.from_native(pl.DataFrame({"a": [1, 2, 3]})) + >>> nw.get_native_namespace(df) + + """ + if not obj: + msg = "At least one object must be passed to `get_native_namespace`." + raise ValueError(msg) + result = {_get_native_namespace_single_obj(x) for x in obj} + if len(result) != 1: + msg = f"Found objects with different native namespaces: {result}." + raise ValueError(msg) + return result.pop() + + +def _get_native_namespace_single_obj( + obj: Frame | Series[Any] | IntoFrame | IntoSeries, +) -> Any: + if has_native_namespace(obj): + return obj.__native_namespace__() + return Version.MAIN.namespace.from_native_object( + obj + ).implementation.to_native_namespace() + + +def narwhalify( + func: Callable[..., Any] | None = None, + *, + pass_through: bool = True, + eager_only: bool = False, + series_only: bool = False, + allow_series: bool | None = True, +) -> Callable[..., Any]: + """Decorate function so it becomes dataframe-agnostic. + + This will try to convert any dataframe/series-like object into the Narwhals + respective DataFrame/Series, while leaving the other parameters as they are. + Similarly, if the output of the function is a Narwhals DataFrame or Series, it will be + converted back to the original dataframe/series type, while if the output is another + type it will be left as is. + By setting `pass_through=False`, then every input and every output will be required to be a + dataframe/series-like object. + + Arguments: + func: Function to wrap in a `from_native`-`to_native` block. + pass_through: Determine what happens if the object can't be converted to Narwhals + + - `False`: raise an error + - `True` (default): pass object through as-is + eager_only: Whether to only allow eager objects + + - `False` (default): don't require `native_object` to be eager + - `True`: only convert to Narwhals if `native_object` is eager + series_only: Whether to only allow Series + + - `False` (default): don't require `native_object` to be a Series + - `True`: only convert to Narwhals if `native_object` is a Series + allow_series: Whether to allow Series (default is only Dataframe / Lazyframe) + + - `False` or `None`: don't convert to Narwhals if `native_object` is a Series + - `True` (default): allow `native_object` to be a Series + + Returns: + Decorated function. + + Examples: + Instead of writing + + >>> import narwhals as nw + >>> def agnostic_group_by_sum(df): + ... df = nw.from_native(df, pass_through=True) + ... df = df.group_by("a").agg(nw.col("b").sum()) + ... return nw.to_native(df) + + you can just write + + >>> @nw.narwhalify + ... def agnostic_group_by_sum(df): + ... return df.group_by("a").agg(nw.col("b").sum()) + """ + + def decorator(func: Callable[..., Any]) -> Callable[..., Any]: + @wraps(func) + def wrapper(*args: Any, **kwargs: Any) -> Any: + args_nw = [ + from_native( + arg, + pass_through=pass_through, + eager_only=eager_only, + series_only=series_only, + allow_series=allow_series, + ) + for arg in args + ] + + kwargs_nw = { + name: from_native( + value, + pass_through=pass_through, + eager_only=eager_only, + series_only=series_only, + allow_series=allow_series, + ) + for name, value in kwargs.items() + } + + backends = { + b() + for v in (*args_nw, *kwargs_nw.values()) + if (b := getattr(v, "__native_namespace__", None)) + } + + if len(backends) > 1: + msg = "Found multiple backends. Make sure that all dataframe/series inputs come from the same backend." + raise ValueError(msg) + + result = func(*args_nw, **kwargs_nw) + + return to_native(result, pass_through=pass_through) + + return wrapper + + if func is None: + return decorator + # If func is not None, it means the decorator is used without arguments + return decorator(func) + + +def to_py_scalar(scalar_like: Any) -> Any: + """If a scalar is not Python native, converts it to Python native. + + Arguments: + scalar_like: Scalar-like value. + + Raises: + ValueError: If the object is not convertible to a scalar. + + Examples: + >>> import narwhals as nw + >>> import pandas as pd + >>> df = nw.from_native(pd.DataFrame({"a": [1, 2, 3]})) + >>> nw.to_py_scalar(df["a"].item(0)) + 1 + >>> import pyarrow as pa + >>> df = nw.from_native(pa.table({"a": [1, 2, 3]})) + >>> nw.to_py_scalar(df["a"].item(0)) + 1 + >>> nw.to_py_scalar(1) + 1 + """ + scalar: Any + pd = get_pandas() + if scalar_like is None or isinstance(scalar_like, NON_TEMPORAL_SCALAR_TYPES): + scalar = scalar_like + elif ( + (np := get_numpy()) + and isinstance(scalar_like, np.datetime64) + and scalar_like.dtype == "datetime64[ns]" + ): + ms = scalar_like.item() // MS_PER_SECOND + scalar = EPOCH + dt.timedelta(microseconds=ms) + elif is_numpy_scalar(scalar_like) or is_cupy_scalar(scalar_like): + scalar = scalar_like.item() + elif pd and isinstance(scalar_like, pd.Timestamp): + scalar = scalar_like.to_pydatetime() + elif pd and isinstance(scalar_like, pd.Timedelta): + scalar = scalar_like.to_pytimedelta() + # pd.Timestamp and pd.Timedelta subclass datetime and timedelta, + # so we need to check this separately + elif isinstance(scalar_like, TEMPORAL_SCALAR_TYPES): + scalar = scalar_like + elif _is_pandas_na(scalar_like): + scalar = None + elif is_pyarrow_scalar(scalar_like): + scalar = scalar_like.as_py() + else: + msg = ( + f"Expected object convertible to a scalar, found {type(scalar_like)}.\n" + f"{scalar_like!r}" + ) + raise ValueError(msg) + return scalar + + +def _is_pandas_na(obj: Any) -> bool: + return bool((pd := get_pandas()) and pd.api.types.is_scalar(obj) and pd.isna(obj)) + + +__all__ = ["get_native_namespace", "narwhalify", "to_native", "to_py_scalar"] diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/typing.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/typing.py new file mode 100644 index 0000000000000000000000000000000000000000..c99507f3807a7f8e5d68c8f9f2788f8df7755a8e --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/typing.py @@ -0,0 +1,398 @@ +from __future__ import annotations + +from collections.abc import Mapping +from typing import TYPE_CHECKING, Any, Literal, Protocol, TypeVar, Union + +from narwhals._compliant import CompliantDataFrame, CompliantLazyFrame, CompliantSeries +from narwhals._native import ( + IntoDataFrame, + IntoDataFrameT, + IntoFrame, + IntoFrameT, + IntoLazyFrame, + IntoLazyFrameT, + IntoSeries, + IntoSeriesT, +) +from narwhals._typing import Backend, EagerAllowed, IntoBackend, LazyAllowed + +if TYPE_CHECKING: + import datetime as dt + import os + from collections.abc import Sequence + from decimal import Decimal + from types import ModuleType + + import numpy as np + import pandas as pd + import polars as pl + import pyarrow as pa + from typing_extensions import TypeAlias + + from narwhals import dtypes + from narwhals.dataframe import DataFrame, LazyFrame + from narwhals.expr import Expr + from narwhals.schema import Schema + from narwhals.series import Series + + class SupportsNativeNamespace(Protocol): + def __native_namespace__(self) -> ModuleType: ... + + # ruff: noqa: N802 + class DTypes(Protocol): + @property + def Decimal(self) -> type[dtypes.Decimal]: ... + @property + def Int128(self) -> type[dtypes.Int128]: ... + @property + def Int64(self) -> type[dtypes.Int64]: ... + @property + def Int32(self) -> type[dtypes.Int32]: ... + @property + def Int16(self) -> type[dtypes.Int16]: ... + @property + def Int8(self) -> type[dtypes.Int8]: ... + @property + def UInt128(self) -> type[dtypes.UInt128]: ... + @property + def UInt64(self) -> type[dtypes.UInt64]: ... + @property + def UInt32(self) -> type[dtypes.UInt32]: ... + @property + def UInt16(self) -> type[dtypes.UInt16]: ... + @property + def UInt8(self) -> type[dtypes.UInt8]: ... + @property + def Float64(self) -> type[dtypes.Float64]: ... + @property + def Float32(self) -> type[dtypes.Float32]: ... + @property + def String(self) -> type[dtypes.String]: ... + @property + def Boolean(self) -> type[dtypes.Boolean]: ... + @property + def Object(self) -> type[dtypes.Object]: ... + @property + def Categorical(self) -> type[dtypes.Categorical]: ... + @property + def Enum(self) -> type[dtypes.Enum]: ... + @property + def Datetime(self) -> type[dtypes.Datetime]: ... + @property + def Duration(self) -> type[dtypes.Duration]: ... + @property + def Date(self) -> type[dtypes.Date]: ... + @property + def Field(self) -> type[dtypes.Field]: ... + @property + def Struct(self) -> type[dtypes.Struct]: ... + @property + def List(self) -> type[dtypes.List]: ... + @property + def Array(self) -> type[dtypes.Array]: ... + @property + def Unknown(self) -> type[dtypes.Unknown]: ... + @property + def Time(self) -> type[dtypes.Time]: ... + @property + def Binary(self) -> type[dtypes.Binary]: ... + + +_ShapeT = TypeVar("_ShapeT", bound="tuple[int, ...]") +_NDArray: TypeAlias = "np.ndarray[_ShapeT, Any]" +_1DArray: TypeAlias = "_NDArray[tuple[int]]" +_1DArrayBool: TypeAlias = "np.ndarray[tuple[bool], np.dtype[np.bool_]]" +_1DArrayInt: TypeAlias = "np.ndarray[tuple[int], np.dtype[np.integer[Any]]]" +_2DArray: TypeAlias = "_NDArray[tuple[int, int]]" # noqa: PYI047 +_AnyDArray: TypeAlias = "_NDArray[tuple[int, ...]]" # noqa: PYI047 +_NumpyScalar: TypeAlias = "np.generic[Any]" +Into1DArray: TypeAlias = "_1DArray | _NumpyScalar" +"""A 1-dimensional `numpy.ndarray` or scalar that can be converted into one.""" + +IntoExpr: TypeAlias = Union["Expr", str, "Series[Any]", _1DArray] +"""Anything which can be converted to an expression. + +Use this to mean "either a Narwhals expression, or something which can be converted +into one". For example, `exprs` in `DataFrame.select` is typed to accept `IntoExpr`, +as it can either accept a `nw.Expr` (e.g. `df.select(nw.col('a'))`) or a string +which will be interpreted as a `nw.Expr`, e.g. `df.select('a')`. +""" + +Frame: TypeAlias = Union["DataFrame[Any]", "LazyFrame[Any]"] +"""Narwhals DataFrame or Narwhals LazyFrame. + +Use this if your function can work with either and your function doesn't care +about its backend. + +Examples: + >>> import narwhals as nw + >>> from narwhals.typing import Frame + >>> @nw.narwhalify + ... def agnostic_columns(df: Frame) -> list[str]: + ... return df.columns +""" + +FrameT = TypeVar("FrameT", "DataFrame[Any]", "LazyFrame[Any]") +"""TypeVar bound to Narwhals DataFrame or Narwhals LazyFrame. + +Use this if your function accepts either `nw.DataFrame` or `nw.LazyFrame` and returns +an object of the same kind. + +Examples: + >>> import narwhals as nw + >>> from narwhals.typing import FrameT + >>> @nw.narwhalify + ... def agnostic_func(df: FrameT) -> FrameT: + ... return df.with_columns(c=nw.col("a") + 1) +""" + +DataFrameT = TypeVar("DataFrameT", bound="DataFrame[Any]") +"""TypeVar bound to Narwhals DataFrame. + +Use this if your function can accept a Narwhals DataFrame and returns a Narwhals +DataFrame backed by the same backend. + +Examples: + >>> import narwhals as nw + >>> from narwhals.typing import DataFrameT + >>> @nw.narwhalify + >>> def func(df: DataFrameT) -> DataFrameT: + ... return df.with_columns(c=df["a"] + 1) +""" + +LazyFrameT = TypeVar("LazyFrameT", bound="LazyFrame[Any]") +SeriesT = TypeVar("SeriesT", bound="Series[Any]") +DTypeBackend: TypeAlias = 'Literal["pyarrow", "numpy_nullable"] | None' +SizeUnit: TypeAlias = Literal[ + "b", + "kb", + "mb", + "gb", + "tb", + "bytes", + "kilobytes", + "megabytes", + "gigabytes", + "terabytes", +] + +TimeUnit: TypeAlias = Literal["ns", "us", "ms", "s"] + +AsofJoinStrategy: TypeAlias = Literal["backward", "forward", "nearest"] +"""Join strategy. + +- *"backward"*: Selects the last row in the right DataFrame whose `on` key + is less than or equal to the left's key. +- *"forward"*: Selects the first row in the right DataFrame whose `on` key + is greater than or equal to the left's key. +- *"nearest"*: Search selects the last row in the right DataFrame whose value + is nearest to the left's key. +""" + +ClosedInterval: TypeAlias = Literal["left", "right", "none", "both"] +"""Define which sides of the interval are closed (inclusive).""" + +ConcatMethod: TypeAlias = Literal["horizontal", "vertical", "diagonal"] +"""Concatenating strategy. + +- *"vertical"*: Concatenate vertically. Column names must match. +- *"horizontal"*: Concatenate horizontally. If lengths don't match, then + missing rows are filled with null values. +- *"diagonal"*: Finds a union between the column schemas and fills missing + column values with null. +""" + +FillNullStrategy: TypeAlias = Literal["forward", "backward"] +"""Strategy used to fill null values.""" + +JoinStrategy: TypeAlias = Literal["inner", "left", "full", "cross", "semi", "anti"] +"""Join strategy. + +- *"inner"*: Returns rows that have matching values in both tables. +- *"left"*: Returns all rows from the left table, and the matched rows from + the right table. +- *"full"*: Returns all rows in both dataframes, with the `suffix` appended to + the right join keys. +- *"cross"*: Returns the Cartesian product of rows from both tables. +- *"semi"*: Filter rows that have a match in the right table. +- *"anti"*: Filter rows that do not have a match in the right table. +""" + +PivotAgg: TypeAlias = Literal[ + "min", "max", "first", "last", "sum", "mean", "median", "len" +] +"""A predefined aggregate function string.""" + +RankMethod: TypeAlias = Literal["average", "min", "max", "dense", "ordinal"] +"""The method used to assign ranks to tied elements. + +- *"average"*: The average of the ranks that would have been assigned to + all the tied values is assigned to each value. +- *"min"*: The minimum of the ranks that would have been assigned to all + the tied values is assigned to each value. (This is also referred to + as "competition" ranking.) +- *"max"*: The maximum of the ranks that would have been assigned to all + the tied values is assigned to each value. +- *"dense"*: Like "min", but the rank of the next highest element is + assigned the rank immediately after those assigned to the tied elements. +- *"ordinal"*: All values are given a distinct rank, corresponding to the + order that the values occur in the Series. +""" + +RollingInterpolationMethod: TypeAlias = Literal[ + "nearest", "higher", "lower", "midpoint", "linear" +] +"""Interpolation method.""" + +CorrelationMethod: TypeAlias = Literal["pearson", "spearman"] + +UniqueKeepStrategy: TypeAlias = Literal["any", "first", "last", "none"] +"""Which of the duplicate rows to keep. + +- *"any"*: Does not give any guarantee of which row is kept. + This allows more optimizations. +- *"none"*: Don't keep duplicate rows. +- *"first"*: Keep first unique row. +- *"last"*: Keep last unique row. +""" + +ModeKeepStrategy: TypeAlias = Literal["any", "all"] +"""Which of the mode's to keep. + +- *"any"*: Does not give any guarantee of which mode is kept. +- *"all"*: Keeps all the mode's. +""" + + +PandasLikeDType: TypeAlias = "pd.api.extensions.ExtensionDtype | np.dtype[Any]" + + +NumericLiteral: TypeAlias = "int | float | Decimal" +TemporalLiteral: TypeAlias = "dt.date | dt.datetime | dt.time | dt.timedelta" +NonNestedLiteral: TypeAlias = ( + "NumericLiteral | TemporalLiteral | str | bool | bytes | None" +) +NestedLiteral: TypeAlias = "list[Any] | tuple[Any, ...] | dict[str, Any]" +PythonLiteral: TypeAlias = "NonNestedLiteral | NestedLiteral" + +NonNestedDType: TypeAlias = "dtypes.NumericType | dtypes.TemporalType | dtypes.String | dtypes.Boolean | dtypes.Binary | dtypes.Categorical | dtypes.Unknown | dtypes.Object" +"""Any Narwhals DType that does not have required arguments.""" + +IntoDType: TypeAlias = "dtypes.DType | type[NonNestedDType]" +"""Anything that can be converted into a Narwhals DType. + +Examples: + >>> import polars as pl + >>> import narwhals as nw + >>> df_native = pl.DataFrame({"a": [1, 2, 3], "b": [4.0, 5.0, 6.0]}) + >>> df = nw.from_native(df_native) + >>> df.select( + ... nw.col("a").cast(nw.Int32), + ... nw.col("b").cast(nw.String()).str.split(".").cast(nw.List(nw.Int8)), + ... ) + ┌──────────────────┐ + |Narwhals DataFrame| + |------------------| + |shape: (3, 2) | + |┌─────┬──────────┐| + |│ a ┆ b │| + |│ --- ┆ --- │| + |│ i32 ┆ list[i8] │| + |╞═════╪══════════╡| + |│ 1 ┆ [4, 0] │| + |│ 2 ┆ [5, 0] │| + |│ 3 ┆ [6, 0] │| + |└─────┴──────────┘| + └──────────────────┘ +""" + + +# TODO @dangotbanned: fix this? +# Constructor allows tuples, but we don't support that *everywhere* yet +IntoSchema: TypeAlias = "Mapping[str, dtypes.DType] | Schema" +"""Anything that can be converted into a Narwhals Schema. + +Defined by column names and their associated *instantiated* Narwhals DType. + +Examples: + >>> import narwhals as nw + >>> import pyarrow as pa + >>> data = {"a": [1, 2, 3], "b": [None, "hi", "howdy"], "c": [2.1, 2.0, None]} + >>> nw.DataFrame.from_dict( + ... data, + ... schema={"a": nw.UInt8(), "b": nw.String(), "c": nw.Float32()}, + ... backend="pyarrow", + ... ) + ┌────────────────────────┐ + | Narwhals DataFrame | + |------------------------| + |pyarrow.Table | + |a: uint8 | + |b: string | + |c: float | + |---- | + |a: [[1,2,3]] | + |b: [[null,"hi","howdy"]]| + |c: [[2.1,2,null]] | + └────────────────────────┘ +""" + +IntoArrowSchema: TypeAlias = "pa.Schema | Mapping[str, pa.DataType]" +IntoPolarsSchema: TypeAlias = "pl.Schema | Mapping[str, pl.DataType]" +IntoPandasSchema: TypeAlias = Mapping[str, PandasLikeDType] + +FileSource: TypeAlias = "str | os.PathLike[str]" +"""Path to a file. + +Either a string or an object that implements [`__fspath__`], such as [`pathlib.Path`]. + +[`__fspath__`]: https://docs.python.org/3/library/os.html#os.PathLike +[`pathlib.Path`]: https://docs.python.org/3/library/pathlib.html#pathlib.Path +""" + + +# Annotations for `__getitem__` methods +_T = TypeVar("_T") +_Slice: TypeAlias = "slice[_T, Any, Any] | slice[Any, _T, Any] | slice[None, None, _T]" +_SliceNone: TypeAlias = "slice[None, None, None]" +# Boolean positions +SizedMultiBoolSelector: TypeAlias = "Sequence[bool] | _T | _1DArrayBool" +# Index/column positions +SingleIndexSelector: TypeAlias = int +_SliceIndex: TypeAlias = "_Slice[int] | _SliceNone" +"""E.g. `[1:]` or `[:3]` or `[::2]`.""" +SizedMultiIndexSelector: TypeAlias = "Sequence[int] | _T | _1DArrayInt" +MultiIndexSelector: TypeAlias = "_SliceIndex | SizedMultiIndexSelector[_T]" +# Labels/column names +SingleNameSelector: TypeAlias = str +_SliceName: TypeAlias = "_Slice[str] | _SliceNone" +SizedMultiNameSelector: TypeAlias = "Sequence[str] | _T | _1DArray" +MultiNameSelector: TypeAlias = "_SliceName | SizedMultiNameSelector[_T]" +# Mixed selectors +SingleColSelector: TypeAlias = "SingleIndexSelector | SingleNameSelector" +MultiColSelector: TypeAlias = ( + "MultiIndexSelector[_T] | MultiNameSelector[_T] | SizedMultiBoolSelector[_T]" +) + + +__all__ = [ + "Backend", + "CompliantDataFrame", + "CompliantLazyFrame", + "CompliantSeries", + "DataFrameT", + "EagerAllowed", + "Frame", + "FrameT", + "IntoBackend", + "IntoDataFrame", + "IntoDataFrameT", + "IntoExpr", + "IntoFrame", + "IntoFrameT", + "IntoLazyFrame", + "IntoLazyFrameT", + "IntoSeries", + "IntoSeriesT", + "LazyAllowed", +] diff --git a/.venv_haddock/lib/python3.12/site-packages/narwhals/utils.py b/.venv_haddock/lib/python3.12/site-packages/narwhals/utils.py new file mode 100644 index 0000000000000000000000000000000000000000..83e26873e04846e258f09aa9dfb69830c856f014 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/narwhals/utils.py @@ -0,0 +1,6 @@ +# Re-export some functions from `_utils` to make them public. +from __future__ import annotations + +from narwhals._utils import Implementation, Version, parse_version + +__all__ = ["Implementation", "Version", 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0000000000000000000000000000000000000000..1329b4257e1fd03d94fd5733d996d5b239556ec0 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/__config__.py @@ -0,0 +1,170 @@ +# This file is generated by numpy's build process +# It contains system_info results at the time of building this package. +from enum import Enum +from numpy._core._multiarray_umath import ( + __cpu_features__, + __cpu_baseline__, + __cpu_dispatch__, +) + +__all__ = ["show_config"] +_built_with_meson = True + + +class DisplayModes(Enum): + stdout = "stdout" + dicts = "dicts" + + +def _cleanup(d): + """ + Removes empty values in a `dict` recursively + This ensures we remove values that Meson could not provide to CONFIG + """ + if isinstance(d, dict): + return {k: _cleanup(v) for k, v in d.items() if v and _cleanup(v)} + else: + return d + + +CONFIG = _cleanup( + { + "Compilers": { + "c": { + "name": "clang", + "linker": r"ld64", + "version": "15.0.0", + "commands": r"cc", + "args": r"", + "linker args": r"", + }, + "cython": { + "name": "cython", + "linker": r"cython", + "version": "3.2.4", + "commands": r"cython", + "args": r"", + "linker args": r"", + }, + "c++": { + "name": "clang", + "linker": r"ld64", + "version": "15.0.0", + "commands": r"c++", + "args": r"", + "linker args": r"", + }, + }, + "Machine Information": { + "host": { + "cpu": "aarch64", + "family": "aarch64", + "endian": "little", + "system": "darwin", + }, + "build": { + "cpu": "aarch64", + "family": "aarch64", + "endian": "little", + "system": "darwin", + }, + "cross-compiled": bool("False".lower().replace("false", "")), + }, + "Build Dependencies": { + "blas": { + "name": "accelerate", + "found": bool("True".lower().replace("false", "")), + "version": "unknown", + "detection method": "system", + "include directory": r"unknown", + "lib directory": r"unknown", + "openblas configuration": r"unknown", + "pc file directory": r"unknown", + }, + "lapack": { + "name": "accelerate", + "found": bool("True".lower().replace("false", "")), + "version": "unknown", + "detection method": "system", + "include directory": r"unknown", + "lib directory": r"unknown", + "openblas configuration": r"unknown", + "pc file directory": r"unknown", + }, + }, + "Python Information": { + "path": r"/private/var/folders/bb/km69qtt53nlbxc29ljr4c9d00000gn/T/build-env-8jz__88i/bin/python", + "version": "3.12", + }, + "SIMD Extensions": { + "baseline": __cpu_baseline__, + "found": [ + feature for feature in __cpu_dispatch__ if __cpu_features__[feature] + ], + "not found": [ + feature for feature in __cpu_dispatch__ if not __cpu_features__[feature] + ], + }, + } +) + + +def _check_pyyaml(): + import yaml + + return yaml + + +def show(mode=DisplayModes.stdout.value): + """ + Show libraries and system information on which NumPy was built + and is being used + + Parameters + ---------- + mode : {`'stdout'`, `'dicts'`}, optional. + Indicates how to display the config information. + `'stdout'` prints to console, `'dicts'` returns a dictionary + of the configuration. + + Returns + ------- + out : {`dict`, `None`} + If mode is `'dicts'`, a dict is returned, else None + + See Also + -------- + get_include : Returns the directory containing NumPy C + header files. + + Notes + ----- + 1. The `'stdout'` mode will give more readable + output if ``pyyaml`` is installed + + """ + if mode == DisplayModes.stdout.value: + try: # Non-standard library, check import + yaml = _check_pyyaml() + + print(yaml.dump(CONFIG)) + except ModuleNotFoundError: + import warnings + import json + + warnings.warn("Install `pyyaml` for better output", stacklevel=1) + print(json.dumps(CONFIG, indent=2)) + elif mode == DisplayModes.dicts.value: + return CONFIG + else: + raise AttributeError( + f"Invalid `mode`, use one of: {', '.join([e.value for e in DisplayModes])}" + ) + + +def show_config(mode=DisplayModes.stdout.value): + return show(mode) + + +show_config.__doc__ = show.__doc__ +show_config.__module__ = "numpy" diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/__config__.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/__config__.pyi new file mode 100644 index 0000000000000000000000000000000000000000..21e8b01fdd96dcb5044758d1fa0a14839c5d1e3a --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/__config__.pyi @@ -0,0 +1,108 @@ +from enum import Enum +from types import ModuleType +from typing import ( + Final, + Literal as L, + NotRequired, + TypedDict, + overload, + type_check_only, +) + +_CompilerConfigDictValue = TypedDict( + "_CompilerConfigDictValue", + { + "name": str, + "linker": str, + "version": str, + "commands": str, + "args": str, + "linker args": str, + }, +) +_CompilerConfigDict = TypedDict( + "_CompilerConfigDict", + { + "c": _CompilerConfigDictValue, + "cython": _CompilerConfigDictValue, + "c++": _CompilerConfigDictValue, + }, +) +_MachineInformationDict = TypedDict( + "_MachineInformationDict", + { + "host": _MachineInformationDictValue, + "build": _MachineInformationDictValue, + "cross-compiled": NotRequired[L[True]], + }, +) + +@type_check_only +class _MachineInformationDictValue(TypedDict): + cpu: str + family: str + endian: L["little", "big"] + system: str + +_BuildDependenciesDictValue = TypedDict( + "_BuildDependenciesDictValue", + { + "name": str, + "found": NotRequired[L[True]], + "version": str, + "include directory": str, + "lib directory": str, + "openblas configuration": str, + "pc file directory": str, + }, +) + +class _BuildDependenciesDict(TypedDict): + blas: _BuildDependenciesDictValue + lapack: _BuildDependenciesDictValue + +class _PythonInformationDict(TypedDict): + path: str + version: str + +_SIMDExtensionsDict = TypedDict( + "_SIMDExtensionsDict", + { + "baseline": list[str], + "found": list[str], + "not found": list[str], + }, +) + +_ConfigDict = TypedDict( + "_ConfigDict", + { + "Compilers": _CompilerConfigDict, + "Machine Information": _MachineInformationDict, + "Build Dependencies": _BuildDependenciesDict, + "Python Information": _PythonInformationDict, + "SIMD Extensions": _SIMDExtensionsDict, + }, +) + +### + +__all__ = ["show_config"] + +CONFIG: Final[_ConfigDict] = ... + +class DisplayModes(Enum): + stdout = "stdout" + dicts = "dicts" + +def _check_pyyaml() -> ModuleType: ... + +@overload +def show(mode: L["stdout"] = "stdout") -> None: ... +@overload +def show(mode: L["dicts"]) -> _ConfigDict: ... + +@overload +def show_config(mode: L["stdout"] = "stdout") -> None: ... +@overload +def show_config(mode: L["dicts"]) -> _ConfigDict: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/__init__.cython-30.pxd b/.venv_haddock/lib/python3.12/site-packages/numpy/__init__.cython-30.pxd new file mode 100644 index 0000000000000000000000000000000000000000..c71898626070b23f1ce6bdc029fbf8082b3d913c --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/__init__.cython-30.pxd @@ -0,0 +1,1242 @@ +# NumPy static imports for Cython >= 3.0 +# +# If any of the PyArray_* functions are called, import_array must be +# called first. This is done automatically by Cython 3.0+ if a call +# is not detected inside of the module. +# +# Author: Dag Sverre Seljebotn +# + +from cpython.ref cimport Py_INCREF +from cpython.object cimport PyObject, PyTypeObject, PyObject_TypeCheck +cimport libc.stdio as stdio + + +cdef extern from *: + # Leave a marker that the NumPy declarations came from NumPy itself and not from Cython. + # See https://github.com/cython/cython/issues/3573 + """ + /* Using NumPy API declarations from "numpy/__init__.cython-30.pxd" */ + """ + + +cdef extern from "numpy/arrayobject.h": + # It would be nice to use size_t and ssize_t, but ssize_t has special + # implicit conversion rules, so just use "long". + # Note: The actual type only matters for Cython promotion, so long + # is closer than int, but could lead to incorrect promotion. + # (Not to worrying, and always the status-quo.) + ctypedef signed long npy_intp + ctypedef unsigned long npy_uintp + + ctypedef unsigned char npy_bool + + ctypedef signed char npy_byte + ctypedef signed short npy_short + ctypedef signed int npy_int + ctypedef signed long npy_long + ctypedef signed long long npy_longlong + + ctypedef unsigned char npy_ubyte + ctypedef unsigned short npy_ushort + ctypedef unsigned int npy_uint + ctypedef unsigned long npy_ulong + ctypedef unsigned long long npy_ulonglong + + ctypedef float npy_float + ctypedef double npy_double + ctypedef long double npy_longdouble + + ctypedef signed char npy_int8 + ctypedef signed short npy_int16 + ctypedef signed int npy_int32 + ctypedef signed long long npy_int64 + + ctypedef unsigned char npy_uint8 + ctypedef unsigned short npy_uint16 + ctypedef unsigned int npy_uint32 + ctypedef unsigned long long npy_uint64 + + ctypedef float npy_float32 + ctypedef double npy_float64 + ctypedef long double npy_float80 + ctypedef long double npy_float96 + ctypedef long double npy_float128 + + ctypedef struct npy_cfloat: + pass + + ctypedef struct npy_cdouble: + pass + + ctypedef struct npy_clongdouble: + pass + + ctypedef struct npy_complex64: + pass + + ctypedef struct npy_complex128: + pass + + ctypedef struct npy_complex160: + pass + + ctypedef struct npy_complex192: + pass + + ctypedef struct npy_complex256: + pass + + ctypedef struct PyArray_Dims: + npy_intp *ptr + int len + + + cdef enum NPY_TYPES: + NPY_BOOL + NPY_BYTE + NPY_UBYTE + NPY_SHORT + NPY_USHORT + NPY_INT + NPY_UINT + NPY_LONG + NPY_ULONG + NPY_LONGLONG + NPY_ULONGLONG + NPY_FLOAT + NPY_DOUBLE + NPY_LONGDOUBLE + NPY_CFLOAT + NPY_CDOUBLE + NPY_CLONGDOUBLE + NPY_OBJECT + NPY_STRING + NPY_UNICODE + NPY_VSTRING + NPY_VOID + NPY_DATETIME + NPY_TIMEDELTA + NPY_NTYPES_LEGACY + NPY_NOTYPE + + NPY_INT8 + NPY_INT16 + NPY_INT32 + NPY_INT64 + NPY_UINT8 + NPY_UINT16 + NPY_UINT32 + NPY_UINT64 + NPY_FLOAT16 + NPY_FLOAT32 + NPY_FLOAT64 + NPY_FLOAT80 + NPY_FLOAT96 + NPY_FLOAT128 + NPY_COMPLEX64 + NPY_COMPLEX128 + NPY_COMPLEX160 + NPY_COMPLEX192 + NPY_COMPLEX256 + + NPY_INTP + NPY_UINTP + NPY_DEFAULT_INT # Not a compile time constant (normally)! + + ctypedef enum NPY_ORDER: + NPY_ANYORDER + NPY_CORDER + NPY_FORTRANORDER + NPY_KEEPORDER + + ctypedef enum NPY_CASTING: + NPY_NO_CASTING + NPY_EQUIV_CASTING + NPY_SAFE_CASTING + NPY_SAME_KIND_CASTING + NPY_UNSAFE_CASTING + NPY_SAME_VALUE_CASTING + + ctypedef enum NPY_CLIPMODE: + NPY_CLIP + NPY_WRAP + NPY_RAISE + + ctypedef enum NPY_SCALARKIND: + NPY_NOSCALAR, + NPY_BOOL_SCALAR, + NPY_INTPOS_SCALAR, + NPY_INTNEG_SCALAR, + NPY_FLOAT_SCALAR, + NPY_COMPLEX_SCALAR, + NPY_OBJECT_SCALAR + + ctypedef enum NPY_SORTKIND: + NPY_QUICKSORT + NPY_HEAPSORT + NPY_MERGESORT + + ctypedef enum NPY_SEARCHSIDE: + NPY_SEARCHLEFT + NPY_SEARCHRIGHT + + enum: + NPY_ARRAY_C_CONTIGUOUS + NPY_ARRAY_F_CONTIGUOUS + NPY_ARRAY_OWNDATA + NPY_ARRAY_FORCECAST + NPY_ARRAY_ENSURECOPY + NPY_ARRAY_ENSUREARRAY + NPY_ARRAY_ELEMENTSTRIDES + NPY_ARRAY_ALIGNED + NPY_ARRAY_NOTSWAPPED + NPY_ARRAY_WRITEABLE + NPY_ARRAY_WRITEBACKIFCOPY + + NPY_ARRAY_BEHAVED + NPY_ARRAY_BEHAVED_NS + NPY_ARRAY_CARRAY + NPY_ARRAY_CARRAY_RO + NPY_ARRAY_FARRAY + NPY_ARRAY_FARRAY_RO + NPY_ARRAY_DEFAULT + + NPY_ARRAY_IN_ARRAY + NPY_ARRAY_OUT_ARRAY + NPY_ARRAY_INOUT_ARRAY + NPY_ARRAY_IN_FARRAY + NPY_ARRAY_OUT_FARRAY + NPY_ARRAY_INOUT_FARRAY + + NPY_ARRAY_UPDATE_ALL + + cdef enum: + NPY_MAXDIMS # 64 on NumPy 2.x and 32 on NumPy 1.x + NPY_RAVEL_AXIS # Used for functions like PyArray_Mean + + ctypedef void (*PyArray_VectorUnaryFunc)(void *, void *, npy_intp, void *, void *) + + ctypedef struct PyArray_ArrayDescr: + # shape is a tuple, but Cython doesn't support "tuple shape" + # inside a non-PyObject declaration, so we have to declare it + # as just a PyObject*. + PyObject* shape + + ctypedef struct PyArray_Descr: + pass + + ctypedef class numpy.dtype [object PyArray_Descr, check_size ignore]: + # Use PyDataType_* macros when possible, however there are no macros + # for accessing some of the fields, so some are defined. + cdef PyTypeObject* typeobj + cdef char kind + cdef char type + # Numpy sometimes mutates this without warning (e.g. it'll + # sometimes change "|" to "<" in shared dtype objects on + # little-endian machines). If this matters to you, use + # PyArray_IsNativeByteOrder(dtype.byteorder) instead of + # directly accessing this field. + cdef char byteorder + cdef int type_num + + @property + cdef inline npy_intp itemsize(self) noexcept nogil: + return PyDataType_ELSIZE(self) + + @property + cdef inline npy_intp alignment(self) noexcept nogil: + return PyDataType_ALIGNMENT(self) + + # Use fields/names with care as they may be NULL. You must check + # for this using PyDataType_HASFIELDS. + @property + cdef inline object fields(self): + return PyDataType_FIELDS(self) + + @property + cdef inline tuple names(self): + return PyDataType_NAMES(self) + + # Use PyDataType_HASSUBARRAY to test whether this field is + # valid (the pointer can be NULL). Most users should access + # this field via the inline helper method PyDataType_SHAPE. + @property + cdef inline PyArray_ArrayDescr* subarray(self) noexcept nogil: + return PyDataType_SUBARRAY(self) + + @property + cdef inline npy_uint64 flags(self) noexcept nogil: + """The data types flags.""" + return PyDataType_FLAGS(self) + + + ctypedef class numpy.flatiter [object PyArrayIterObject, check_size ignore]: + # Use through macros + pass + + ctypedef class numpy.broadcast [object PyArrayMultiIterObject, check_size ignore]: + + @property + cdef inline int numiter(self) noexcept nogil: + """The number of arrays that need to be broadcast to the same shape.""" + return PyArray_MultiIter_NUMITER(self) + + @property + cdef inline npy_intp size(self) noexcept nogil: + """The total broadcasted size.""" + return PyArray_MultiIter_SIZE(self) + + @property + cdef inline npy_intp index(self) noexcept nogil: + """The current (1-d) index into the broadcasted result.""" + return PyArray_MultiIter_INDEX(self) + + @property + cdef inline int nd(self) noexcept nogil: + """The number of dimensions in the broadcasted result.""" + return PyArray_MultiIter_NDIM(self) + + @property + cdef inline npy_intp* dimensions(self) noexcept nogil: + """The shape of the broadcasted result.""" + return PyArray_MultiIter_DIMS(self) + + @property + cdef inline void** iters(self) noexcept nogil: + """An array of iterator objects that holds the iterators for the arrays to be broadcast together. + On return, the iterators are adjusted for broadcasting.""" + return PyArray_MultiIter_ITERS(self) + + + ctypedef struct PyArrayObject: + # For use in situations where ndarray can't replace PyArrayObject*, + # like PyArrayObject**. + pass + + ctypedef class numpy.ndarray [object PyArrayObject, check_size ignore]: + cdef __cythonbufferdefaults__ = {"mode": "strided"} + + # NOTE: no field declarations since direct access is deprecated since NumPy 1.7 + # Instead, we use properties that map to the corresponding C-API functions. + + @property + cdef inline PyObject* base(self) noexcept nogil: + """Returns a borrowed reference to the object owning the data/memory. + """ + return PyArray_BASE(self) + + @property + cdef inline dtype descr(self): + """Returns an owned reference to the dtype of the array. + """ + return PyArray_DESCR(self) + + @property + cdef inline int ndim(self) noexcept nogil: + """Returns the number of dimensions in the array. + """ + return PyArray_NDIM(self) + + @property + cdef inline npy_intp *shape(self) noexcept nogil: + """Returns a pointer to the dimensions/shape of the array. + The number of elements matches the number of dimensions of the array (ndim). + Can return NULL for 0-dimensional arrays. + """ + return PyArray_DIMS(self) + + @property + cdef inline npy_intp *strides(self) noexcept nogil: + """Returns a pointer to the strides of the array. + The number of elements matches the number of dimensions of the array (ndim). + """ + return PyArray_STRIDES(self) + + @property + cdef inline npy_intp size(self) noexcept nogil: + """Returns the total size (in number of elements) of the array. + """ + return PyArray_SIZE(self) + + @property + cdef inline char* data(self) noexcept nogil: + """The pointer to the data buffer as a char*. + This is provided for legacy reasons to avoid direct struct field access. + For new code that needs this access, you probably want to cast the result + of `PyArray_DATA()` instead, which returns a 'void*'. + """ + return PyArray_BYTES(self) + + + int _import_array() except -1 + # A second definition so _import_array isn't marked as used when we use it here. + # Do not use - subject to change any time. + int __pyx_import_array "_import_array"() except -1 + + # + # Macros from ndarrayobject.h + # + bint PyArray_CHKFLAGS(ndarray m, int flags) nogil + bint PyArray_IS_C_CONTIGUOUS(ndarray arr) nogil + bint PyArray_IS_F_CONTIGUOUS(ndarray arr) nogil + bint PyArray_ISCONTIGUOUS(ndarray m) nogil + bint PyArray_ISWRITEABLE(ndarray m) nogil + bint PyArray_ISALIGNED(ndarray m) nogil + + int PyArray_NDIM(ndarray) nogil + bint PyArray_ISONESEGMENT(ndarray) nogil + bint PyArray_ISFORTRAN(ndarray) nogil + int PyArray_FORTRANIF(ndarray) nogil + + void* PyArray_DATA(ndarray) nogil + char* PyArray_BYTES(ndarray) nogil + + npy_intp* PyArray_DIMS(ndarray) nogil + npy_intp* PyArray_STRIDES(ndarray) nogil + npy_intp PyArray_DIM(ndarray, size_t) nogil + npy_intp PyArray_STRIDE(ndarray, size_t) nogil + + PyObject *PyArray_BASE(ndarray) nogil # returns borrowed reference! + PyArray_Descr *PyArray_DESCR(ndarray) nogil # returns borrowed reference to dtype! + PyArray_Descr *PyArray_DTYPE(ndarray) nogil # returns borrowed reference to dtype! NP 1.7+ alias for descr. + int PyArray_FLAGS(ndarray) nogil + void PyArray_CLEARFLAGS(ndarray, int flags) nogil # Added in NumPy 1.7 + void PyArray_ENABLEFLAGS(ndarray, int flags) nogil # Added in NumPy 1.7 + npy_intp PyArray_ITEMSIZE(ndarray) nogil + int PyArray_TYPE(ndarray arr) nogil + + object PyArray_GETITEM(ndarray arr, void *itemptr) + int PyArray_SETITEM(ndarray arr, void *itemptr, object obj) except -1 + + bint PyTypeNum_ISBOOL(int) nogil + bint PyTypeNum_ISUNSIGNED(int) nogil + bint PyTypeNum_ISSIGNED(int) nogil + bint PyTypeNum_ISINTEGER(int) nogil + bint PyTypeNum_ISFLOAT(int) nogil + bint PyTypeNum_ISNUMBER(int) nogil + bint PyTypeNum_ISSTRING(int) nogil + bint PyTypeNum_ISCOMPLEX(int) nogil + bint PyTypeNum_ISFLEXIBLE(int) nogil + bint PyTypeNum_ISUSERDEF(int) nogil + bint PyTypeNum_ISEXTENDED(int) nogil + bint PyTypeNum_ISOBJECT(int) nogil + + npy_intp PyDataType_ELSIZE(dtype) nogil + npy_intp PyDataType_ALIGNMENT(dtype) nogil + PyObject* PyDataType_METADATA(dtype) nogil + PyArray_ArrayDescr* PyDataType_SUBARRAY(dtype) nogil + PyObject* PyDataType_NAMES(dtype) nogil + PyObject* PyDataType_FIELDS(dtype) nogil + + bint PyDataType_ISBOOL(dtype) nogil + bint PyDataType_ISUNSIGNED(dtype) nogil + bint PyDataType_ISSIGNED(dtype) nogil + bint PyDataType_ISINTEGER(dtype) nogil + bint PyDataType_ISFLOAT(dtype) nogil + bint PyDataType_ISNUMBER(dtype) nogil + bint PyDataType_ISSTRING(dtype) nogil + bint PyDataType_ISCOMPLEX(dtype) nogil + bint PyDataType_ISFLEXIBLE(dtype) nogil + bint PyDataType_ISUSERDEF(dtype) nogil + bint PyDataType_ISEXTENDED(dtype) nogil + bint PyDataType_ISOBJECT(dtype) nogil + bint PyDataType_HASFIELDS(dtype) nogil + bint PyDataType_HASSUBARRAY(dtype) nogil + npy_uint64 PyDataType_FLAGS(dtype) nogil + + bint PyArray_ISBOOL(ndarray) nogil + bint PyArray_ISUNSIGNED(ndarray) nogil + bint PyArray_ISSIGNED(ndarray) nogil + bint PyArray_ISINTEGER(ndarray) nogil + bint PyArray_ISFLOAT(ndarray) nogil + bint PyArray_ISNUMBER(ndarray) nogil + bint PyArray_ISSTRING(ndarray) nogil + bint PyArray_ISCOMPLEX(ndarray) nogil + bint PyArray_ISFLEXIBLE(ndarray) nogil + bint PyArray_ISUSERDEF(ndarray) nogil + bint PyArray_ISEXTENDED(ndarray) nogil + bint PyArray_ISOBJECT(ndarray) nogil + bint PyArray_HASFIELDS(ndarray) nogil + + bint PyArray_ISVARIABLE(ndarray) nogil + + bint PyArray_SAFEALIGNEDCOPY(ndarray) nogil + bint PyArray_ISNBO(char) nogil # works on ndarray.byteorder + bint PyArray_IsNativeByteOrder(char) nogil # works on ndarray.byteorder + bint PyArray_ISNOTSWAPPED(ndarray) nogil + bint PyArray_ISBYTESWAPPED(ndarray) nogil + + bint PyArray_FLAGSWAP(ndarray, int) nogil + + bint PyArray_ISCARRAY(ndarray) nogil + bint PyArray_ISCARRAY_RO(ndarray) nogil + bint PyArray_ISFARRAY(ndarray) nogil + bint PyArray_ISFARRAY_RO(ndarray) nogil + bint PyArray_ISBEHAVED(ndarray) nogil + bint PyArray_ISBEHAVED_RO(ndarray) nogil + + + bint PyDataType_ISNOTSWAPPED(dtype) nogil + bint PyDataType_ISBYTESWAPPED(dtype) nogil + + bint PyArray_DescrCheck(object) + + bint PyArray_Check(object) + bint PyArray_CheckExact(object) + + # Cannot be supported due to out arg: + # bint PyArray_HasArrayInterfaceType(object, dtype, object, object&) + # bint PyArray_HasArrayInterface(op, out) + + + bint PyArray_IsZeroDim(object) + # Cannot be supported due to ## ## in macro: + # bint PyArray_IsScalar(object, verbatim work) + bint PyArray_CheckScalar(object) + bint PyArray_IsPythonNumber(object) + bint PyArray_IsPythonScalar(object) + bint PyArray_IsAnyScalar(object) + bint PyArray_CheckAnyScalar(object) + + ndarray PyArray_GETCONTIGUOUS(ndarray) + bint PyArray_SAMESHAPE(ndarray, ndarray) nogil + npy_intp PyArray_SIZE(ndarray) nogil + npy_intp PyArray_NBYTES(ndarray) nogil + + object PyArray_FROM_O(object) + object PyArray_FROM_OF(object m, int flags) + object PyArray_FROM_OT(object m, int type) + object PyArray_FROM_OTF(object m, int type, int flags) + object PyArray_FROMANY(object m, int type, int min, int max, int flags) + object PyArray_ZEROS(int nd, npy_intp* dims, int type, int fortran) + object PyArray_EMPTY(int nd, npy_intp* dims, int type, int fortran) + void PyArray_FILLWBYTE(ndarray, int val) + object PyArray_ContiguousFromAny(op, int, int min_depth, int max_depth) + unsigned char PyArray_EquivArrTypes(ndarray a1, ndarray a2) + bint PyArray_EquivByteorders(int b1, int b2) nogil + object PyArray_SimpleNew(int nd, npy_intp* dims, int typenum) + object PyArray_SimpleNewFromData(int nd, npy_intp* dims, int typenum, void* data) + #object PyArray_SimpleNewFromDescr(int nd, npy_intp* dims, dtype descr) + object PyArray_ToScalar(void* data, ndarray arr) + + void* PyArray_GETPTR1(ndarray m, npy_intp i) nogil + void* PyArray_GETPTR2(ndarray m, npy_intp i, npy_intp j) nogil + void* PyArray_GETPTR3(ndarray m, npy_intp i, npy_intp j, npy_intp k) nogil + void* PyArray_GETPTR4(ndarray m, npy_intp i, npy_intp j, npy_intp k, npy_intp l) nogil + + # Cannot be supported due to out arg + # void PyArray_DESCR_REPLACE(descr) + + + object PyArray_Copy(ndarray) + object PyArray_FromObject(object op, int type, int min_depth, int max_depth) + object PyArray_ContiguousFromObject(object op, int type, int min_depth, int max_depth) + object PyArray_CopyFromObject(object op, int type, int min_depth, int max_depth) + + object PyArray_Cast(ndarray mp, int type_num) + object PyArray_Take(ndarray ap, object items, int axis) + object PyArray_Put(ndarray ap, object items, object values) + + void PyArray_ITER_RESET(flatiter it) nogil + void PyArray_ITER_NEXT(flatiter it) nogil + void PyArray_ITER_GOTO(flatiter it, npy_intp* destination) nogil + void PyArray_ITER_GOTO1D(flatiter it, npy_intp ind) nogil + void* PyArray_ITER_DATA(flatiter it) nogil + bint PyArray_ITER_NOTDONE(flatiter it) nogil + + void PyArray_MultiIter_RESET(broadcast multi) nogil + void PyArray_MultiIter_NEXT(broadcast multi) nogil + void PyArray_MultiIter_GOTO(broadcast multi, npy_intp dest) nogil + void PyArray_MultiIter_GOTO1D(broadcast multi, npy_intp ind) nogil + void* PyArray_MultiIter_DATA(broadcast multi, npy_intp i) nogil + void PyArray_MultiIter_NEXTi(broadcast multi, npy_intp i) nogil + bint PyArray_MultiIter_NOTDONE(broadcast multi) nogil + npy_intp PyArray_MultiIter_SIZE(broadcast multi) nogil + int PyArray_MultiIter_NDIM(broadcast multi) nogil + npy_intp PyArray_MultiIter_INDEX(broadcast multi) nogil + int PyArray_MultiIter_NUMITER(broadcast multi) nogil + npy_intp* PyArray_MultiIter_DIMS(broadcast multi) nogil + void** PyArray_MultiIter_ITERS(broadcast multi) nogil + + # Functions from __multiarray_api.h + + # Functions taking dtype and returning object/ndarray are disabled + # for now as they steal dtype references. I'm conservative and disable + # more than is probably needed until it can be checked further. + int PyArray_INCREF (ndarray) except * # uses PyArray_Item_INCREF... + int PyArray_XDECREF (ndarray) except * # uses PyArray_Item_DECREF... + dtype PyArray_DescrFromType (int) + object PyArray_TypeObjectFromType (int) + char * PyArray_Zero (ndarray) + char * PyArray_One (ndarray) + #object PyArray_CastToType (ndarray, dtype, int) + int PyArray_CanCastSafely (int, int) # writes errors + npy_bool PyArray_CanCastTo (dtype, dtype) # writes errors + int PyArray_ObjectType (object, int) except 0 + dtype PyArray_DescrFromObject (object, dtype) + #ndarray* PyArray_ConvertToCommonType (object, int *) + dtype PyArray_DescrFromScalar (object) + dtype PyArray_DescrFromTypeObject (object) + npy_intp PyArray_Size (object) + #object PyArray_Scalar (void *, dtype, object) + #object PyArray_FromScalar (object, dtype) + void PyArray_ScalarAsCtype (object, void *) + #int PyArray_CastScalarToCtype (object, void *, dtype) + #int PyArray_CastScalarDirect (object, dtype, void *, int) + #PyArray_VectorUnaryFunc * PyArray_GetCastFunc (dtype, int) + #object PyArray_FromAny (object, dtype, int, int, int, object) + object PyArray_EnsureArray (object) + object PyArray_EnsureAnyArray (object) + #object PyArray_FromFile (stdio.FILE *, dtype, npy_intp, char *) + #object PyArray_FromString (char *, npy_intp, dtype, npy_intp, char *) + #object PyArray_FromBuffer (object, dtype, npy_intp, npy_intp) + #object PyArray_FromIter (object, dtype, npy_intp) + object PyArray_Return (ndarray) + #object PyArray_GetField (ndarray, dtype, int) + #int PyArray_SetField (ndarray, dtype, int, object) except -1 + object PyArray_Byteswap (ndarray, npy_bool) + object PyArray_Resize (ndarray, PyArray_Dims *, int, NPY_ORDER) + int PyArray_CopyInto (ndarray, ndarray) except -1 + int PyArray_CopyAnyInto (ndarray, ndarray) except -1 + int PyArray_CopyObject (ndarray, object) except -1 + object PyArray_NewCopy (ndarray, NPY_ORDER) + object PyArray_ToList (ndarray) + object PyArray_ToString (ndarray, NPY_ORDER) + int PyArray_ToFile (ndarray, stdio.FILE *, char *, char *) except -1 + int PyArray_Dump (object, object, int) except -1 + object PyArray_Dumps (object, int) + int PyArray_ValidType (int) # Cannot error + void PyArray_UpdateFlags (ndarray, int) + object PyArray_New (type, int, npy_intp *, int, npy_intp *, void *, int, int, object) + #object PyArray_NewFromDescr (type, dtype, int, npy_intp *, npy_intp *, void *, int, object) + #dtype PyArray_DescrNew (dtype) + dtype PyArray_DescrNewFromType (int) + double PyArray_GetPriority (object, double) # clears errors as of 1.25 + object PyArray_IterNew (object) + object PyArray_MultiIterNew (int, ...) + + int PyArray_PyIntAsInt (object) except? -1 + npy_intp PyArray_PyIntAsIntp (object) + int PyArray_Broadcast (broadcast) except -1 + int PyArray_FillWithScalar (ndarray, object) except -1 + npy_bool PyArray_CheckStrides (int, int, npy_intp, npy_intp, npy_intp *, npy_intp *) + dtype PyArray_DescrNewByteorder (dtype, char) + object PyArray_IterAllButAxis (object, int *) + #object PyArray_CheckFromAny (object, dtype, int, int, int, object) + #object PyArray_FromArray (ndarray, dtype, int) + object PyArray_FromInterface (object) + object PyArray_FromStructInterface (object) + #object PyArray_FromArrayAttr (object, dtype, object) + #NPY_SCALARKIND PyArray_ScalarKind (int, ndarray*) + int PyArray_CanCoerceScalar (int, int, NPY_SCALARKIND) + npy_bool PyArray_CanCastScalar (type, type) + int PyArray_RemoveSmallest (broadcast) except -1 + int PyArray_ElementStrides (object) + void PyArray_Item_INCREF (char *, dtype) except * + void PyArray_Item_XDECREF (char *, dtype) except * + object PyArray_Transpose (ndarray, PyArray_Dims *) + object PyArray_TakeFrom (ndarray, object, int, ndarray, NPY_CLIPMODE) + object PyArray_PutTo (ndarray, object, object, NPY_CLIPMODE) + object PyArray_PutMask (ndarray, object, object) + object PyArray_Repeat (ndarray, object, int) + object PyArray_Choose (ndarray, object, ndarray, NPY_CLIPMODE) + int PyArray_Sort (ndarray, int, NPY_SORTKIND) except -1 + object PyArray_ArgSort (ndarray, int, NPY_SORTKIND) + object PyArray_SearchSorted (ndarray, object, NPY_SEARCHSIDE, PyObject *) + object PyArray_ArgMax (ndarray, int, ndarray) + object PyArray_ArgMin (ndarray, int, ndarray) + object PyArray_Reshape (ndarray, object) + object PyArray_Newshape (ndarray, PyArray_Dims *, NPY_ORDER) + object PyArray_Squeeze (ndarray) + #object PyArray_View (ndarray, dtype, type) + object PyArray_SwapAxes (ndarray, int, int) + object PyArray_Max (ndarray, int, ndarray) + object PyArray_Min (ndarray, int, ndarray) + object PyArray_Ptp (ndarray, int, ndarray) + object PyArray_Mean (ndarray, int, int, ndarray) + object PyArray_Trace (ndarray, int, int, int, int, ndarray) + object PyArray_Diagonal (ndarray, int, int, int) + object PyArray_Clip (ndarray, object, object, ndarray) + object PyArray_Conjugate (ndarray, ndarray) + object PyArray_Nonzero (ndarray) + object PyArray_Std (ndarray, int, int, ndarray, int) + object PyArray_Sum (ndarray, int, int, ndarray) + object PyArray_CumSum (ndarray, int, int, ndarray) + object PyArray_Prod (ndarray, int, int, ndarray) + object PyArray_CumProd (ndarray, int, int, ndarray) + object PyArray_All (ndarray, int, ndarray) + object PyArray_Any (ndarray, int, ndarray) + object PyArray_Compress (ndarray, object, int, ndarray) + object PyArray_Flatten (ndarray, NPY_ORDER) + object PyArray_Ravel (ndarray, NPY_ORDER) + npy_intp PyArray_MultiplyList (npy_intp *, int) + int PyArray_MultiplyIntList (int *, int) + void * PyArray_GetPtr (ndarray, npy_intp*) + int PyArray_CompareLists (npy_intp *, npy_intp *, int) + #int PyArray_AsCArray (object*, void *, npy_intp *, int, dtype) + int PyArray_Free (object, void *) + #int PyArray_Converter (object, object*) + int PyArray_IntpFromSequence (object, npy_intp *, int) except -1 + object PyArray_Concatenate (object, int) + object PyArray_InnerProduct (object, object) + object PyArray_MatrixProduct (object, object) + object PyArray_Correlate (object, object, int) + #int PyArray_DescrConverter (object, dtype*) except 0 + #int PyArray_DescrConverter2 (object, dtype*) except 0 + int PyArray_IntpConverter (object, PyArray_Dims *) except 0 + #int PyArray_BufferConverter (object, chunk) except 0 + int PyArray_AxisConverter (object, int *) except 0 + int PyArray_BoolConverter (object, npy_bool *) except 0 + int PyArray_ByteorderConverter (object, char *) except 0 + int PyArray_OrderConverter (object, NPY_ORDER *) except 0 + unsigned char PyArray_EquivTypes (dtype, dtype) # clears errors + #object PyArray_Zeros (int, npy_intp *, dtype, int) + #object PyArray_Empty (int, npy_intp *, dtype, int) + object PyArray_Where (object, object, object) + object PyArray_Arange (double, double, double, int) + #object PyArray_ArangeObj (object, object, object, dtype) + int PyArray_SortkindConverter (object, NPY_SORTKIND *) except 0 + object PyArray_LexSort (object, int) + object PyArray_Round (ndarray, int, ndarray) + unsigned char PyArray_EquivTypenums (int, int) + int PyArray_RegisterDataType (dtype) except -1 + int PyArray_RegisterCastFunc (dtype, int, PyArray_VectorUnaryFunc *) except -1 + int PyArray_RegisterCanCast (dtype, int, NPY_SCALARKIND) except -1 + #void PyArray_InitArrFuncs (PyArray_ArrFuncs *) + object PyArray_IntTupleFromIntp (int, npy_intp *) + int PyArray_ClipmodeConverter (object, NPY_CLIPMODE *) except 0 + #int PyArray_OutputConverter (object, ndarray*) except 0 + object PyArray_BroadcastToShape (object, npy_intp *, int) + #int PyArray_DescrAlignConverter (object, dtype*) except 0 + #int PyArray_DescrAlignConverter2 (object, dtype*) except 0 + int PyArray_SearchsideConverter (object, void *) except 0 + object PyArray_CheckAxis (ndarray, int *, int) + npy_intp PyArray_OverflowMultiplyList (npy_intp *, int) + int PyArray_SetBaseObject(ndarray, base) except -1 # NOTE: steals a reference to base! Use "set_array_base()" instead. + + # The memory handler functions require the NumPy 1.22 API + # and may require defining NPY_TARGET_VERSION + ctypedef struct PyDataMemAllocator: + void *ctx + void* (*malloc) (void *ctx, size_t size) + void* (*calloc) (void *ctx, size_t nelem, size_t elsize) + void* (*realloc) (void *ctx, void *ptr, size_t new_size) + void (*free) (void *ctx, void *ptr, size_t size) + + ctypedef struct PyDataMem_Handler: + char* name + npy_uint8 version + PyDataMemAllocator allocator + + object PyDataMem_SetHandler(object handler) + object PyDataMem_GetHandler() + + # additional datetime related functions are defined below + + +# Typedefs that matches the runtime dtype objects in +# the numpy module. + +# The ones that are commented out needs an IFDEF function +# in Cython to enable them only on the right systems. + +ctypedef npy_int8 int8_t +ctypedef npy_int16 int16_t +ctypedef npy_int32 int32_t +ctypedef npy_int64 int64_t + +ctypedef npy_uint8 uint8_t +ctypedef npy_uint16 uint16_t +ctypedef npy_uint32 uint32_t +ctypedef npy_uint64 uint64_t + +ctypedef npy_float32 float32_t +ctypedef npy_float64 float64_t +#ctypedef npy_float80 float80_t +#ctypedef npy_float128 float128_t + +ctypedef float complex complex64_t +ctypedef double complex complex128_t + +ctypedef npy_longlong longlong_t +ctypedef npy_ulonglong ulonglong_t + +ctypedef npy_intp intp_t +ctypedef npy_uintp uintp_t + +ctypedef npy_double float_t +ctypedef npy_double double_t +ctypedef npy_longdouble longdouble_t + +ctypedef float complex cfloat_t +ctypedef double complex cdouble_t +ctypedef double complex complex_t +ctypedef long double complex clongdouble_t + +cdef inline object PyArray_MultiIterNew1(a): + return PyArray_MultiIterNew(1, a) + +cdef inline object PyArray_MultiIterNew2(a, b): + return PyArray_MultiIterNew(2, a, b) + +cdef inline object PyArray_MultiIterNew3(a, b, c): + return PyArray_MultiIterNew(3, a, b, c) + +cdef inline object PyArray_MultiIterNew4(a, b, c, d): + return PyArray_MultiIterNew(4, a, b, c, d) + +cdef inline object PyArray_MultiIterNew5(a, b, c, d, e): + return PyArray_MultiIterNew(5, a, b, c, d, e) + +cdef inline tuple PyDataType_SHAPE(dtype d): + if PyDataType_HASSUBARRAY(d): + return d.subarray.shape + else: + return () + + +cdef extern from "numpy/ndarrayobject.h": + PyTypeObject PyTimedeltaArrType_Type + PyTypeObject PyDatetimeArrType_Type + ctypedef int64_t npy_timedelta + ctypedef int64_t npy_datetime + +cdef extern from "numpy/ndarraytypes.h": + ctypedef struct PyArray_DatetimeMetaData: + NPY_DATETIMEUNIT base + int64_t num + + ctypedef struct npy_datetimestruct: + int64_t year + int32_t month, day, hour, min, sec, us, ps, as + + # Iterator API added in v1.6 + # + # These don't match the definition in the C API because Cython can't wrap + # function pointers that return functions. + # https://github.com/cython/cython/issues/6720 + ctypedef int (*NpyIter_IterNextFunc "NpyIter_IterNextFunc *")(NpyIter* it) noexcept nogil + ctypedef void (*NpyIter_GetMultiIndexFunc "NpyIter_GetMultiIndexFunc *")(NpyIter* it, npy_intp* outcoords) noexcept nogil + + +cdef extern from "numpy/arrayscalars.h": + + # abstract types + ctypedef class numpy.generic [object PyObject]: + pass + ctypedef class numpy.number [object PyObject]: + pass + ctypedef class numpy.integer [object PyObject]: + pass + ctypedef class numpy.signedinteger [object PyObject]: + pass + ctypedef class numpy.unsignedinteger [object PyObject]: + pass + ctypedef class numpy.inexact [object PyObject]: + pass + ctypedef class numpy.floating [object PyObject]: + pass + ctypedef class numpy.complexfloating [object PyObject]: + pass + ctypedef class numpy.flexible [object PyObject]: + pass + ctypedef class numpy.character [object PyObject]: + pass + + ctypedef struct PyDatetimeScalarObject: + # PyObject_HEAD + npy_datetime obval + PyArray_DatetimeMetaData obmeta + + ctypedef struct PyTimedeltaScalarObject: + # PyObject_HEAD + npy_timedelta obval + PyArray_DatetimeMetaData obmeta + + ctypedef enum NPY_DATETIMEUNIT: + NPY_FR_Y + NPY_FR_M + NPY_FR_W + NPY_FR_D + NPY_FR_B + NPY_FR_h + NPY_FR_m + NPY_FR_s + NPY_FR_ms + NPY_FR_us + NPY_FR_ns + NPY_FR_ps + NPY_FR_fs + NPY_FR_as + NPY_FR_GENERIC + + +cdef extern from "numpy/arrayobject.h": + # These are part of the C-API defined in `__multiarray_api.h` + + # NumPy internal definitions in datetime_strings.c: + int get_datetime_iso_8601_strlen "NpyDatetime_GetDatetimeISO8601StrLen" ( + int local, NPY_DATETIMEUNIT base) + int make_iso_8601_datetime "NpyDatetime_MakeISO8601Datetime" ( + npy_datetimestruct *dts, char *outstr, npy_intp outlen, + int local, int utc, NPY_DATETIMEUNIT base, int tzoffset, + NPY_CASTING casting) except -1 + + # NumPy internal definition in datetime.c: + # May return 1 to indicate that object does not appear to be a datetime + # (returns 0 on success). + int convert_pydatetime_to_datetimestruct "NpyDatetime_ConvertPyDateTimeToDatetimeStruct" ( + PyObject *obj, npy_datetimestruct *out, + NPY_DATETIMEUNIT *out_bestunit, int apply_tzinfo) except -1 + int convert_datetime64_to_datetimestruct "NpyDatetime_ConvertDatetime64ToDatetimeStruct" ( + PyArray_DatetimeMetaData *meta, npy_datetime dt, + npy_datetimestruct *out) except -1 + int convert_datetimestruct_to_datetime64 "NpyDatetime_ConvertDatetimeStructToDatetime64"( + PyArray_DatetimeMetaData *meta, const npy_datetimestruct *dts, + npy_datetime *out) except -1 + + +# +# ufunc API +# + +cdef extern from "numpy/ufuncobject.h": + + ctypedef void (*PyUFuncGenericFunction) (char **, npy_intp *, npy_intp *, void *) + + ctypedef class numpy.ufunc [object PyUFuncObject, check_size ignore]: + cdef: + int nin, nout, nargs + int identity + PyUFuncGenericFunction *functions + void **data + int ntypes + int check_return + char *name + char *types + char *doc + void *ptr + PyObject *obj + PyObject *userloops + + cdef enum: + PyUFunc_Zero + PyUFunc_One + PyUFunc_None + # deprecated + UFUNC_FPE_DIVIDEBYZERO + UFUNC_FPE_OVERFLOW + UFUNC_FPE_UNDERFLOW + UFUNC_FPE_INVALID + # use these instead + NPY_FPE_DIVIDEBYZERO + NPY_FPE_OVERFLOW + NPY_FPE_UNDERFLOW + NPY_FPE_INVALID + + + object PyUFunc_FromFuncAndData(PyUFuncGenericFunction *, + void **, char *, int, int, int, int, char *, char *, int) + int PyUFunc_RegisterLoopForType(ufunc, int, + PyUFuncGenericFunction, int *, void *) except -1 + void PyUFunc_f_f_As_d_d \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_d_d \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_f_f \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_g_g \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_F_F_As_D_D \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_F_F \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_D_D \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_G_G \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_O_O \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_ff_f_As_dd_d \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_ff_f \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_dd_d \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_gg_g \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_FF_F_As_DD_D \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_DD_D \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_FF_F \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_GG_G \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_OO_O \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_O_O_method \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_OO_O_method \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_On_Om \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_clearfperr() + int PyUFunc_getfperr() + int PyUFunc_ReplaceLoopBySignature \ + (ufunc, PyUFuncGenericFunction, int *, PyUFuncGenericFunction *) + object PyUFunc_FromFuncAndDataAndSignature \ + (PyUFuncGenericFunction *, void **, char *, int, int, int, + int, char *, char *, int, char *) + + int _import_umath() except -1 + +cdef inline void set_array_base(ndarray arr, object base) except *: + Py_INCREF(base) # important to do this before stealing the reference below! + PyArray_SetBaseObject(arr, base) + +cdef inline object get_array_base(ndarray arr): + base = PyArray_BASE(arr) + if base is NULL: + return None + return base + +# Versions of the import_* functions which are more suitable for +# Cython code. +cdef inline int import_array() except -1: + try: + __pyx_import_array() + except Exception: + raise ImportError("numpy._core.multiarray failed to import") + +cdef inline int import_umath() except -1: + try: + _import_umath() + except Exception: + raise ImportError("numpy._core.umath failed to import") + +cdef inline int import_ufunc() except -1: + try: + _import_umath() + except Exception: + raise ImportError("numpy._core.umath failed to import") + + +cdef inline bint is_timedelta64_object(object obj) noexcept: + """ + Cython equivalent of `isinstance(obj, np.timedelta64)` + + Parameters + ---------- + obj : object + + Returns + ------- + bool + """ + return PyObject_TypeCheck(obj, &PyTimedeltaArrType_Type) + + +cdef inline bint is_datetime64_object(object obj) noexcept: + """ + Cython equivalent of `isinstance(obj, np.datetime64)` + + Parameters + ---------- + obj : object + + Returns + ------- + bool + """ + return PyObject_TypeCheck(obj, &PyDatetimeArrType_Type) + + +cdef inline npy_datetime get_datetime64_value(object obj) noexcept nogil: + """ + returns the int64 value underlying scalar numpy datetime64 object + + Note that to interpret this as a datetime, the corresponding unit is + also needed. That can be found using `get_datetime64_unit`. + """ + return (obj).obval + + +cdef inline npy_timedelta get_timedelta64_value(object obj) noexcept nogil: + """ + returns the int64 value underlying scalar numpy timedelta64 object + """ + return (obj).obval + + +cdef inline NPY_DATETIMEUNIT get_datetime64_unit(object obj) noexcept nogil: + """ + returns the unit part of the dtype for a numpy datetime64 object. + """ + return (obj).obmeta.base + + +cdef extern from "numpy/arrayobject.h": + + ctypedef struct NpyIter: + pass + + cdef enum: + NPY_FAIL + NPY_SUCCEED + + cdef enum: + # Track an index representing C order + NPY_ITER_C_INDEX + # Track an index representing Fortran order + NPY_ITER_F_INDEX + # Track a multi-index + NPY_ITER_MULTI_INDEX + # User code external to the iterator does the 1-dimensional innermost loop + NPY_ITER_EXTERNAL_LOOP + # Convert all the operands to a common data type + NPY_ITER_COMMON_DTYPE + # Operands may hold references, requiring API access during iteration + NPY_ITER_REFS_OK + # Zero-sized operands should be permitted, iteration checks IterSize for 0 + NPY_ITER_ZEROSIZE_OK + # Permits reductions (size-0 stride with dimension size > 1) + NPY_ITER_REDUCE_OK + # Enables sub-range iteration + NPY_ITER_RANGED + # Enables buffering + NPY_ITER_BUFFERED + # When buffering is enabled, grows the inner loop if possible + NPY_ITER_GROWINNER + # Delay allocation of buffers until first Reset* call + NPY_ITER_DELAY_BUFALLOC + # When NPY_KEEPORDER is specified, disable reversing negative-stride axes + NPY_ITER_DONT_NEGATE_STRIDES + NPY_ITER_COPY_IF_OVERLAP + # The operand will be read from and written to + NPY_ITER_READWRITE + # The operand will only be read from + NPY_ITER_READONLY + # The operand will only be written to + NPY_ITER_WRITEONLY + # The operand's data must be in native byte order + NPY_ITER_NBO + # The operand's data must be aligned + NPY_ITER_ALIGNED + # The operand's data must be contiguous (within the inner loop) + NPY_ITER_CONTIG + # The operand may be copied to satisfy requirements + NPY_ITER_COPY + # The operand may be copied with WRITEBACKIFCOPY to satisfy requirements + NPY_ITER_UPDATEIFCOPY + # Allocate the operand if it is NULL + NPY_ITER_ALLOCATE + # If an operand is allocated, don't use any subtype + NPY_ITER_NO_SUBTYPE + # This is a virtual array slot, operand is NULL but temporary data is there + NPY_ITER_VIRTUAL + # Require that the dimension match the iterator dimensions exactly + NPY_ITER_NO_BROADCAST + # A mask is being used on this array, affects buffer -> array copy + NPY_ITER_WRITEMASKED + # This array is the mask for all WRITEMASKED operands + NPY_ITER_ARRAYMASK + # Assume iterator order data access for COPY_IF_OVERLAP + NPY_ITER_OVERLAP_ASSUME_ELEMENTWISE + + # construction and destruction functions + NpyIter* NpyIter_New(ndarray arr, npy_uint32 flags, NPY_ORDER order, + NPY_CASTING casting, dtype datatype) except NULL + NpyIter* NpyIter_MultiNew(npy_intp nop, PyArrayObject** op, npy_uint32 flags, + NPY_ORDER order, NPY_CASTING casting, npy_uint32* + op_flags, PyArray_Descr** op_dtypes) except NULL + NpyIter* NpyIter_AdvancedNew(npy_intp nop, PyArrayObject** op, + npy_uint32 flags, NPY_ORDER order, + NPY_CASTING casting, npy_uint32* op_flags, + PyArray_Descr** op_dtypes, int oa_ndim, + int** op_axes, const npy_intp* itershape, + npy_intp buffersize) except NULL + NpyIter* NpyIter_Copy(NpyIter* it) except NULL + int NpyIter_RemoveAxis(NpyIter* it, int axis) except NPY_FAIL + int NpyIter_RemoveMultiIndex(NpyIter* it) except NPY_FAIL + int NpyIter_EnableExternalLoop(NpyIter* it) except NPY_FAIL + int NpyIter_Deallocate(NpyIter* it) except NPY_FAIL + int NpyIter_Reset(NpyIter* it, char** errmsg) except NPY_FAIL + int NpyIter_ResetToIterIndexRange(NpyIter* it, npy_intp istart, + npy_intp iend, char** errmsg) except NPY_FAIL + int NpyIter_ResetBasePointers(NpyIter* it, char** baseptrs, char** errmsg) except NPY_FAIL + int NpyIter_GotoMultiIndex(NpyIter* it, const npy_intp* multi_index) except NPY_FAIL + int NpyIter_GotoIndex(NpyIter* it, npy_intp index) except NPY_FAIL + npy_intp NpyIter_GetIterSize(NpyIter* it) nogil + npy_intp NpyIter_GetIterIndex(NpyIter* it) nogil + void NpyIter_GetIterIndexRange(NpyIter* it, npy_intp* istart, + npy_intp* iend) nogil + int NpyIter_GotoIterIndex(NpyIter* it, npy_intp iterindex) except NPY_FAIL + npy_bool NpyIter_HasDelayedBufAlloc(NpyIter* it) nogil + npy_bool NpyIter_HasExternalLoop(NpyIter* it) nogil + npy_bool NpyIter_HasMultiIndex(NpyIter* it) nogil + npy_bool NpyIter_HasIndex(NpyIter* it) nogil + npy_bool NpyIter_RequiresBuffering(NpyIter* it) nogil + npy_bool NpyIter_IsBuffered(NpyIter* it) nogil + npy_bool NpyIter_IsGrowInner(NpyIter* it) nogil + npy_intp NpyIter_GetBufferSize(NpyIter* it) nogil + int NpyIter_GetNDim(NpyIter* it) nogil + int NpyIter_GetNOp(NpyIter* it) nogil + npy_intp* NpyIter_GetAxisStrideArray(NpyIter* it, int axis) except NULL + int NpyIter_GetShape(NpyIter* it, npy_intp* outshape) nogil + PyArray_Descr** NpyIter_GetDescrArray(NpyIter* it) + PyArrayObject** NpyIter_GetOperandArray(NpyIter* it) + ndarray NpyIter_GetIterView(NpyIter* it, npy_intp i) + void NpyIter_GetReadFlags(NpyIter* it, char* outreadflags) + void NpyIter_GetWriteFlags(NpyIter* it, char* outwriteflags) + int NpyIter_CreateCompatibleStrides(NpyIter* it, npy_intp itemsize, + npy_intp* outstrides) except NPY_FAIL + npy_bool NpyIter_IsFirstVisit(NpyIter* it, int iop) nogil + # functions for iterating an NpyIter object + # + # These don't match the definition in the C API because Cython can't wrap + # function pointers that return functions. + NpyIter_IterNextFunc NpyIter_GetIterNext(NpyIter* it, char** errmsg) except NULL + NpyIter_GetMultiIndexFunc NpyIter_GetGetMultiIndex(NpyIter* it, + char** errmsg) except NULL + char** NpyIter_GetDataPtrArray(NpyIter* it) nogil + char** NpyIter_GetInitialDataPtrArray(NpyIter* it) nogil + npy_intp* NpyIter_GetIndexPtr(NpyIter* it) + npy_intp* NpyIter_GetInnerStrideArray(NpyIter* it) nogil + npy_intp* NpyIter_GetInnerLoopSizePtr(NpyIter* it) nogil + void NpyIter_GetInnerFixedStrideArray(NpyIter* it, npy_intp* outstrides) nogil + npy_bool NpyIter_IterationNeedsAPI(NpyIter* it) nogil + void NpyIter_DebugPrint(NpyIter* it) + +# NpyString API +cdef extern from "numpy/ndarraytypes.h": + ctypedef struct npy_string_allocator: + pass + + ctypedef struct npy_packed_static_string: + pass + + ctypedef struct npy_static_string: + size_t size + const char *buf + + ctypedef struct PyArray_StringDTypeObject: + PyArray_Descr base + PyObject *na_object + char coerce + char has_nan_na + char has_string_na + char array_owned + npy_static_string default_string + npy_static_string na_name + npy_string_allocator *allocator + +cdef extern from "numpy/arrayobject.h": + npy_string_allocator *NpyString_acquire_allocator(const PyArray_StringDTypeObject *descr) + void NpyString_acquire_allocators(size_t n_descriptors, PyArray_Descr *const descrs[], npy_string_allocator *allocators[]) + void NpyString_release_allocator(npy_string_allocator *allocator) + void NpyString_release_allocators(size_t length, npy_string_allocator *allocators[]) + int NpyString_load(npy_string_allocator *allocator, const npy_packed_static_string *packed_string, npy_static_string *unpacked_string) + int NpyString_pack_null(npy_string_allocator *allocator, npy_packed_static_string *packed_string) + int NpyString_pack(npy_string_allocator *allocator, npy_packed_static_string *packed_string, const char *buf, size_t size) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/__init__.pxd b/.venv_haddock/lib/python3.12/site-packages/numpy/__init__.pxd new file mode 100644 index 0000000000000000000000000000000000000000..40a24b6c7cc1e60c213e5365c2f3c793b10ee0ae --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/__init__.pxd @@ -0,0 +1,1155 @@ +# NumPy static imports for Cython < 3.0 +# +# If any of the PyArray_* functions are called, import_array must be +# called first. +# +# Author: Dag Sverre Seljebotn +# + +DEF _buffer_format_string_len = 255 + +cimport cpython.buffer as pybuf +from cpython.ref cimport Py_INCREF +from cpython.mem cimport PyObject_Malloc, PyObject_Free +from cpython.object cimport PyObject, PyTypeObject +from cpython.buffer cimport PyObject_GetBuffer +from cpython.type cimport type +cimport libc.stdio as stdio + + +cdef extern from *: + # Leave a marker that the NumPy declarations came from NumPy itself and not from Cython. + # See https://github.com/cython/cython/issues/3573 + """ + /* Using NumPy API declarations from "numpy/__init__.pxd" */ + """ + + +cdef extern from "Python.h": + ctypedef int Py_intptr_t + bint PyObject_TypeCheck(object obj, PyTypeObject* type) + +cdef extern from "numpy/arrayobject.h": + # It would be nice to use size_t and ssize_t, but ssize_t has special + # implicit conversion rules, so just use "long". + # Note: The actual type only matters for Cython promotion, so long + # is closer than int, but could lead to incorrect promotion. + # (Not to worrying, and always the status-quo.) + ctypedef signed long npy_intp + ctypedef unsigned long npy_uintp + + ctypedef unsigned char npy_bool + + ctypedef signed char npy_byte + ctypedef signed short npy_short + ctypedef signed int npy_int + ctypedef signed long npy_long + ctypedef signed long long npy_longlong + + ctypedef unsigned char npy_ubyte + ctypedef unsigned short npy_ushort + ctypedef unsigned int npy_uint + ctypedef unsigned long npy_ulong + ctypedef unsigned long long npy_ulonglong + + ctypedef float npy_float + ctypedef double npy_double + ctypedef long double npy_longdouble + + ctypedef signed char npy_int8 + ctypedef signed short npy_int16 + ctypedef signed int npy_int32 + ctypedef signed long long npy_int64 + + ctypedef unsigned char npy_uint8 + ctypedef unsigned short npy_uint16 + ctypedef unsigned int npy_uint32 + ctypedef unsigned long long npy_uint64 + + ctypedef float npy_float32 + ctypedef double npy_float64 + ctypedef long double npy_float80 + ctypedef long double npy_float96 + ctypedef long double npy_float128 + + ctypedef struct npy_cfloat: + pass + + ctypedef struct npy_cdouble: + pass + + ctypedef struct npy_clongdouble: + pass + + ctypedef struct npy_complex64: + pass + + ctypedef struct npy_complex128: + pass + + ctypedef struct npy_complex160: + pass + + ctypedef struct npy_complex192: + pass + + ctypedef struct npy_complex256: + pass + + ctypedef struct PyArray_Dims: + npy_intp *ptr + int len + + + cdef enum NPY_TYPES: + NPY_BOOL + NPY_BYTE + NPY_UBYTE + NPY_SHORT + NPY_USHORT + NPY_INT + NPY_UINT + NPY_LONG + NPY_ULONG + NPY_LONGLONG + NPY_ULONGLONG + NPY_FLOAT + NPY_DOUBLE + NPY_LONGDOUBLE + NPY_CFLOAT + NPY_CDOUBLE + NPY_CLONGDOUBLE + NPY_OBJECT + NPY_STRING + NPY_UNICODE + NPY_VSTRING + NPY_VOID + NPY_DATETIME + NPY_TIMEDELTA + NPY_NTYPES_LEGACY + NPY_NOTYPE + + NPY_INT8 + NPY_INT16 + NPY_INT32 + NPY_INT64 + NPY_UINT8 + NPY_UINT16 + NPY_UINT32 + NPY_UINT64 + NPY_FLOAT16 + NPY_FLOAT32 + NPY_FLOAT64 + NPY_FLOAT80 + NPY_FLOAT96 + NPY_FLOAT128 + NPY_COMPLEX64 + NPY_COMPLEX128 + NPY_COMPLEX160 + NPY_COMPLEX192 + NPY_COMPLEX256 + + NPY_INTP + NPY_UINTP + NPY_DEFAULT_INT # Not a compile time constant (normally)! + + ctypedef enum NPY_ORDER: + NPY_ANYORDER + NPY_CORDER + NPY_FORTRANORDER + NPY_KEEPORDER + + ctypedef enum NPY_CASTING: + NPY_NO_CASTING + NPY_EQUIV_CASTING + NPY_SAFE_CASTING + NPY_SAME_KIND_CASTING + NPY_UNSAFE_CASTING + NPY_SAME_VALUE_CASTING + + ctypedef enum NPY_CLIPMODE: + NPY_CLIP + NPY_WRAP + NPY_RAISE + + ctypedef enum NPY_SCALARKIND: + NPY_NOSCALAR, + NPY_BOOL_SCALAR, + NPY_INTPOS_SCALAR, + NPY_INTNEG_SCALAR, + NPY_FLOAT_SCALAR, + NPY_COMPLEX_SCALAR, + NPY_OBJECT_SCALAR + + ctypedef enum NPY_SORTKIND: + NPY_QUICKSORT + NPY_HEAPSORT + NPY_MERGESORT + + ctypedef enum NPY_SEARCHSIDE: + NPY_SEARCHLEFT + NPY_SEARCHRIGHT + + enum: + NPY_ARRAY_C_CONTIGUOUS + NPY_ARRAY_F_CONTIGUOUS + NPY_ARRAY_OWNDATA + NPY_ARRAY_FORCECAST + NPY_ARRAY_ENSURECOPY + NPY_ARRAY_ENSUREARRAY + NPY_ARRAY_ELEMENTSTRIDES + NPY_ARRAY_ALIGNED + NPY_ARRAY_NOTSWAPPED + NPY_ARRAY_WRITEABLE + NPY_ARRAY_WRITEBACKIFCOPY + + NPY_ARRAY_BEHAVED + NPY_ARRAY_BEHAVED_NS + NPY_ARRAY_CARRAY + NPY_ARRAY_CARRAY_RO + NPY_ARRAY_FARRAY + NPY_ARRAY_FARRAY_RO + NPY_ARRAY_DEFAULT + + NPY_ARRAY_IN_ARRAY + NPY_ARRAY_OUT_ARRAY + NPY_ARRAY_INOUT_ARRAY + NPY_ARRAY_IN_FARRAY + NPY_ARRAY_OUT_FARRAY + NPY_ARRAY_INOUT_FARRAY + + NPY_ARRAY_UPDATE_ALL + + cdef enum: + NPY_MAXDIMS # 64 on NumPy 2.x and 32 on NumPy 1.x + NPY_RAVEL_AXIS # Used for functions like PyArray_Mean + + ctypedef void (*PyArray_VectorUnaryFunc)(void *, void *, npy_intp, void *, void *) + + ctypedef struct PyArray_ArrayDescr: + # shape is a tuple, but Cython doesn't support "tuple shape" + # inside a non-PyObject declaration, so we have to declare it + # as just a PyObject*. + PyObject* shape + + ctypedef struct PyArray_Descr: + pass + + ctypedef class numpy.dtype [object PyArray_Descr, check_size ignore]: + # Use PyDataType_* macros when possible, however there are no macros + # for accessing some of the fields, so some are defined. + cdef PyTypeObject* typeobj + cdef char kind + cdef char type + # Numpy sometimes mutates this without warning (e.g. it'll + # sometimes change "|" to "<" in shared dtype objects on + # little-endian machines). If this matters to you, use + # PyArray_IsNativeByteOrder(dtype.byteorder) instead of + # directly accessing this field. + cdef char byteorder + # Flags are not directly accessible on Cython <3. Use PyDataType_FLAGS. + # cdef char flags + cdef int type_num + # itemsize/elsize, alignment, fields, names, and subarray must + # use the `PyDataType_*` accessor macros. With Cython 3 you can + # still use getter attributes `dtype.itemsize` + + ctypedef class numpy.flatiter [object PyArrayIterObject, check_size ignore]: + # Use through macros + pass + + ctypedef class numpy.broadcast [object PyArrayMultiIterObject, check_size ignore]: + cdef int numiter + cdef npy_intp size, index + cdef int nd + cdef npy_intp *dimensions + cdef void **iters + + ctypedef struct PyArrayObject: + # For use in situations where ndarray can't replace PyArrayObject*, + # like PyArrayObject**. + pass + + ctypedef class numpy.ndarray [object PyArrayObject, check_size ignore]: + cdef __cythonbufferdefaults__ = {"mode": "strided"} + + cdef: + # Only taking a few of the most commonly used and stable fields. + # One should use PyArray_* macros instead to access the C fields. + char *data + int ndim "nd" + npy_intp *shape "dimensions" + npy_intp *strides + dtype descr # deprecated since NumPy 1.7 ! + PyObject* base # NOT PUBLIC, DO NOT USE ! + + + int _import_array() except -1 + # A second definition so _import_array isn't marked as used when we use it here. + # Do not use - subject to change any time. + int __pyx_import_array "_import_array"() except -1 + + # + # Macros from ndarrayobject.h + # + bint PyArray_CHKFLAGS(ndarray m, int flags) nogil + bint PyArray_IS_C_CONTIGUOUS(ndarray arr) nogil + bint PyArray_IS_F_CONTIGUOUS(ndarray arr) nogil + bint PyArray_ISCONTIGUOUS(ndarray m) nogil + bint PyArray_ISWRITEABLE(ndarray m) nogil + bint PyArray_ISALIGNED(ndarray m) nogil + + int PyArray_NDIM(ndarray) nogil + bint PyArray_ISONESEGMENT(ndarray) nogil + bint PyArray_ISFORTRAN(ndarray) nogil + int PyArray_FORTRANIF(ndarray) nogil + + void* PyArray_DATA(ndarray) nogil + char* PyArray_BYTES(ndarray) nogil + + npy_intp* PyArray_DIMS(ndarray) nogil + npy_intp* PyArray_STRIDES(ndarray) nogil + npy_intp PyArray_DIM(ndarray, size_t) nogil + npy_intp PyArray_STRIDE(ndarray, size_t) nogil + + PyObject *PyArray_BASE(ndarray) nogil # returns borrowed reference! + PyArray_Descr *PyArray_DESCR(ndarray) nogil # returns borrowed reference to dtype! + PyArray_Descr *PyArray_DTYPE(ndarray) nogil # returns borrowed reference to dtype! NP 1.7+ alias for descr. + int PyArray_FLAGS(ndarray) nogil + void PyArray_CLEARFLAGS(ndarray, int flags) nogil # Added in NumPy 1.7 + void PyArray_ENABLEFLAGS(ndarray, int flags) nogil # Added in NumPy 1.7 + npy_intp PyArray_ITEMSIZE(ndarray) nogil + int PyArray_TYPE(ndarray arr) nogil + + object PyArray_GETITEM(ndarray arr, void *itemptr) + int PyArray_SETITEM(ndarray arr, void *itemptr, object obj) except -1 + + bint PyTypeNum_ISBOOL(int) nogil + bint PyTypeNum_ISUNSIGNED(int) nogil + bint PyTypeNum_ISSIGNED(int) nogil + bint PyTypeNum_ISINTEGER(int) nogil + bint PyTypeNum_ISFLOAT(int) nogil + bint PyTypeNum_ISNUMBER(int) nogil + bint PyTypeNum_ISSTRING(int) nogil + bint PyTypeNum_ISCOMPLEX(int) nogil + bint PyTypeNum_ISFLEXIBLE(int) nogil + bint PyTypeNum_ISUSERDEF(int) nogil + bint PyTypeNum_ISEXTENDED(int) nogil + bint PyTypeNum_ISOBJECT(int) nogil + + npy_intp PyDataType_ELSIZE(dtype) nogil + npy_intp PyDataType_ALIGNMENT(dtype) nogil + PyObject* PyDataType_METADATA(dtype) nogil + PyArray_ArrayDescr* PyDataType_SUBARRAY(dtype) nogil + PyObject* PyDataType_NAMES(dtype) nogil + PyObject* PyDataType_FIELDS(dtype) nogil + + bint PyDataType_ISBOOL(dtype) nogil + bint PyDataType_ISUNSIGNED(dtype) nogil + bint PyDataType_ISSIGNED(dtype) nogil + bint PyDataType_ISINTEGER(dtype) nogil + bint PyDataType_ISFLOAT(dtype) nogil + bint PyDataType_ISNUMBER(dtype) nogil + bint PyDataType_ISSTRING(dtype) nogil + bint PyDataType_ISCOMPLEX(dtype) nogil + bint PyDataType_ISFLEXIBLE(dtype) nogil + bint PyDataType_ISUSERDEF(dtype) nogil + bint PyDataType_ISEXTENDED(dtype) nogil + bint PyDataType_ISOBJECT(dtype) nogil + bint PyDataType_HASFIELDS(dtype) nogil + bint PyDataType_HASSUBARRAY(dtype) nogil + npy_uint64 PyDataType_FLAGS(dtype) nogil + + bint PyArray_ISBOOL(ndarray) nogil + bint PyArray_ISUNSIGNED(ndarray) nogil + bint PyArray_ISSIGNED(ndarray) nogil + bint PyArray_ISINTEGER(ndarray) nogil + bint PyArray_ISFLOAT(ndarray) nogil + bint PyArray_ISNUMBER(ndarray) nogil + bint PyArray_ISSTRING(ndarray) nogil + bint PyArray_ISCOMPLEX(ndarray) nogil + bint PyArray_ISFLEXIBLE(ndarray) nogil + bint PyArray_ISUSERDEF(ndarray) nogil + bint PyArray_ISEXTENDED(ndarray) nogil + bint PyArray_ISOBJECT(ndarray) nogil + bint PyArray_HASFIELDS(ndarray) nogil + + bint PyArray_ISVARIABLE(ndarray) nogil + + bint PyArray_SAFEALIGNEDCOPY(ndarray) nogil + bint PyArray_ISNBO(char) nogil # works on ndarray.byteorder + bint PyArray_IsNativeByteOrder(char) nogil # works on ndarray.byteorder + bint PyArray_ISNOTSWAPPED(ndarray) nogil + bint PyArray_ISBYTESWAPPED(ndarray) nogil + + bint PyArray_FLAGSWAP(ndarray, int) nogil + + bint PyArray_ISCARRAY(ndarray) nogil + bint PyArray_ISCARRAY_RO(ndarray) nogil + bint PyArray_ISFARRAY(ndarray) nogil + bint PyArray_ISFARRAY_RO(ndarray) nogil + bint PyArray_ISBEHAVED(ndarray) nogil + bint PyArray_ISBEHAVED_RO(ndarray) nogil + + + bint PyDataType_ISNOTSWAPPED(dtype) nogil + bint PyDataType_ISBYTESWAPPED(dtype) nogil + + bint PyArray_DescrCheck(object) + + bint PyArray_Check(object) + bint PyArray_CheckExact(object) + + # Cannot be supported due to out arg: + # bint PyArray_HasArrayInterfaceType(object, dtype, object, object&) + # bint PyArray_HasArrayInterface(op, out) + + + bint PyArray_IsZeroDim(object) + # Cannot be supported due to ## ## in macro: + # bint PyArray_IsScalar(object, verbatim work) + bint PyArray_CheckScalar(object) + bint PyArray_IsPythonNumber(object) + bint PyArray_IsPythonScalar(object) + bint PyArray_IsAnyScalar(object) + bint PyArray_CheckAnyScalar(object) + + ndarray PyArray_GETCONTIGUOUS(ndarray) + bint PyArray_SAMESHAPE(ndarray, ndarray) nogil + npy_intp PyArray_SIZE(ndarray) nogil + npy_intp PyArray_NBYTES(ndarray) nogil + + object PyArray_FROM_O(object) + object PyArray_FROM_OF(object m, int flags) + object PyArray_FROM_OT(object m, int type) + object PyArray_FROM_OTF(object m, int type, int flags) + object PyArray_FROMANY(object m, int type, int min, int max, int flags) + object PyArray_ZEROS(int nd, npy_intp* dims, int type, int fortran) + object PyArray_EMPTY(int nd, npy_intp* dims, int type, int fortran) + void PyArray_FILLWBYTE(ndarray, int val) + object PyArray_ContiguousFromAny(op, int, int min_depth, int max_depth) + unsigned char PyArray_EquivArrTypes(ndarray a1, ndarray a2) + bint PyArray_EquivByteorders(int b1, int b2) nogil + object PyArray_SimpleNew(int nd, npy_intp* dims, int typenum) + object PyArray_SimpleNewFromData(int nd, npy_intp* dims, int typenum, void* data) + #object PyArray_SimpleNewFromDescr(int nd, npy_intp* dims, dtype descr) + object PyArray_ToScalar(void* data, ndarray arr) + + void* PyArray_GETPTR1(ndarray m, npy_intp i) nogil + void* PyArray_GETPTR2(ndarray m, npy_intp i, npy_intp j) nogil + void* PyArray_GETPTR3(ndarray m, npy_intp i, npy_intp j, npy_intp k) nogil + void* PyArray_GETPTR4(ndarray m, npy_intp i, npy_intp j, npy_intp k, npy_intp l) nogil + + # Cannot be supported due to out arg + # void PyArray_DESCR_REPLACE(descr) + + + object PyArray_Copy(ndarray) + object PyArray_FromObject(object op, int type, int min_depth, int max_depth) + object PyArray_ContiguousFromObject(object op, int type, int min_depth, int max_depth) + object PyArray_CopyFromObject(object op, int type, int min_depth, int max_depth) + + object PyArray_Cast(ndarray mp, int type_num) + object PyArray_Take(ndarray ap, object items, int axis) + object PyArray_Put(ndarray ap, object items, object values) + + void PyArray_ITER_RESET(flatiter it) nogil + void PyArray_ITER_NEXT(flatiter it) nogil + void PyArray_ITER_GOTO(flatiter it, npy_intp* destination) nogil + void PyArray_ITER_GOTO1D(flatiter it, npy_intp ind) nogil + void* PyArray_ITER_DATA(flatiter it) nogil + bint PyArray_ITER_NOTDONE(flatiter it) nogil + + void PyArray_MultiIter_RESET(broadcast multi) nogil + void PyArray_MultiIter_NEXT(broadcast multi) nogil + void PyArray_MultiIter_GOTO(broadcast multi, npy_intp dest) nogil + void PyArray_MultiIter_GOTO1D(broadcast multi, npy_intp ind) nogil + void* PyArray_MultiIter_DATA(broadcast multi, npy_intp i) nogil + void PyArray_MultiIter_NEXTi(broadcast multi, npy_intp i) nogil + bint PyArray_MultiIter_NOTDONE(broadcast multi) nogil + npy_intp PyArray_MultiIter_SIZE(broadcast multi) nogil + int PyArray_MultiIter_NDIM(broadcast multi) nogil + npy_intp PyArray_MultiIter_INDEX(broadcast multi) nogil + int PyArray_MultiIter_NUMITER(broadcast multi) nogil + npy_intp* PyArray_MultiIter_DIMS(broadcast multi) nogil + void** PyArray_MultiIter_ITERS(broadcast multi) nogil + + # Functions from __multiarray_api.h + + # Functions taking dtype and returning object/ndarray are disabled + # for now as they steal dtype references. I'm conservative and disable + # more than is probably needed until it can be checked further. + int PyArray_INCREF (ndarray) except * # uses PyArray_Item_INCREF... + int PyArray_XDECREF (ndarray) except * # uses PyArray_Item_DECREF... + dtype PyArray_DescrFromType (int) + object PyArray_TypeObjectFromType (int) + char * PyArray_Zero (ndarray) + char * PyArray_One (ndarray) + #object PyArray_CastToType (ndarray, dtype, int) + int PyArray_CanCastSafely (int, int) # writes errors + npy_bool PyArray_CanCastTo (dtype, dtype) # writes errors + int PyArray_ObjectType (object, int) except 0 + dtype PyArray_DescrFromObject (object, dtype) + #ndarray* PyArray_ConvertToCommonType (object, int *) + dtype PyArray_DescrFromScalar (object) + dtype PyArray_DescrFromTypeObject (object) + npy_intp PyArray_Size (object) + #object PyArray_Scalar (void *, dtype, object) + #object PyArray_FromScalar (object, dtype) + void PyArray_ScalarAsCtype (object, void *) + #int PyArray_CastScalarToCtype (object, void *, dtype) + #int PyArray_CastScalarDirect (object, dtype, void *, int) + #PyArray_VectorUnaryFunc * PyArray_GetCastFunc (dtype, int) + #object PyArray_FromAny (object, dtype, int, int, int, object) + object PyArray_EnsureArray (object) + object PyArray_EnsureAnyArray (object) + #object PyArray_FromFile (stdio.FILE *, dtype, npy_intp, char *) + #object PyArray_FromString (char *, npy_intp, dtype, npy_intp, char *) + #object PyArray_FromBuffer (object, dtype, npy_intp, npy_intp) + #object PyArray_FromIter (object, dtype, npy_intp) + object PyArray_Return (ndarray) + #object PyArray_GetField (ndarray, dtype, int) + #int PyArray_SetField (ndarray, dtype, int, object) except -1 + object PyArray_Byteswap (ndarray, npy_bool) + object PyArray_Resize (ndarray, PyArray_Dims *, int, NPY_ORDER) + int PyArray_CopyInto (ndarray, ndarray) except -1 + int PyArray_CopyAnyInto (ndarray, ndarray) except -1 + int PyArray_CopyObject (ndarray, object) except -1 + object PyArray_NewCopy (ndarray, NPY_ORDER) + object PyArray_ToList (ndarray) + object PyArray_ToString (ndarray, NPY_ORDER) + int PyArray_ToFile (ndarray, stdio.FILE *, char *, char *) except -1 + int PyArray_Dump (object, object, int) except -1 + object PyArray_Dumps (object, int) + int PyArray_ValidType (int) # Cannot error + void PyArray_UpdateFlags (ndarray, int) + object PyArray_New (type, int, npy_intp *, int, npy_intp *, void *, int, int, object) + #object PyArray_NewFromDescr (type, dtype, int, npy_intp *, npy_intp *, void *, int, object) + #dtype PyArray_DescrNew (dtype) + dtype PyArray_DescrNewFromType (int) + double PyArray_GetPriority (object, double) # clears errors as of 1.25 + object PyArray_IterNew (object) + object PyArray_MultiIterNew (int, ...) + + int PyArray_PyIntAsInt (object) except? -1 + npy_intp PyArray_PyIntAsIntp (object) + int PyArray_Broadcast (broadcast) except -1 + int PyArray_FillWithScalar (ndarray, object) except -1 + npy_bool PyArray_CheckStrides (int, int, npy_intp, npy_intp, npy_intp *, npy_intp *) + dtype PyArray_DescrNewByteorder (dtype, char) + object PyArray_IterAllButAxis (object, int *) + #object PyArray_CheckFromAny (object, dtype, int, int, int, object) + #object PyArray_FromArray (ndarray, dtype, int) + object PyArray_FromInterface (object) + object PyArray_FromStructInterface (object) + #object PyArray_FromArrayAttr (object, dtype, object) + #NPY_SCALARKIND PyArray_ScalarKind (int, ndarray*) + int PyArray_CanCoerceScalar (int, int, NPY_SCALARKIND) + npy_bool PyArray_CanCastScalar (type, type) + int PyArray_RemoveSmallest (broadcast) except -1 + int PyArray_ElementStrides (object) + void PyArray_Item_INCREF (char *, dtype) except * + void PyArray_Item_XDECREF (char *, dtype) except * + object PyArray_Transpose (ndarray, PyArray_Dims *) + object PyArray_TakeFrom (ndarray, object, int, ndarray, NPY_CLIPMODE) + object PyArray_PutTo (ndarray, object, object, NPY_CLIPMODE) + object PyArray_PutMask (ndarray, object, object) + object PyArray_Repeat (ndarray, object, int) + object PyArray_Choose (ndarray, object, ndarray, NPY_CLIPMODE) + int PyArray_Sort (ndarray, int, NPY_SORTKIND) except -1 + object PyArray_ArgSort (ndarray, int, NPY_SORTKIND) + object PyArray_SearchSorted (ndarray, object, NPY_SEARCHSIDE, PyObject *) + object PyArray_ArgMax (ndarray, int, ndarray) + object PyArray_ArgMin (ndarray, int, ndarray) + object PyArray_Reshape (ndarray, object) + object PyArray_Newshape (ndarray, PyArray_Dims *, NPY_ORDER) + object PyArray_Squeeze (ndarray) + #object PyArray_View (ndarray, dtype, type) + object PyArray_SwapAxes (ndarray, int, int) + object PyArray_Max (ndarray, int, ndarray) + object PyArray_Min (ndarray, int, ndarray) + object PyArray_Ptp (ndarray, int, ndarray) + object PyArray_Mean (ndarray, int, int, ndarray) + object PyArray_Trace (ndarray, int, int, int, int, ndarray) + object PyArray_Diagonal (ndarray, int, int, int) + object PyArray_Clip (ndarray, object, object, ndarray) + object PyArray_Conjugate (ndarray, ndarray) + object PyArray_Nonzero (ndarray) + object PyArray_Std (ndarray, int, int, ndarray, int) + object PyArray_Sum (ndarray, int, int, ndarray) + object PyArray_CumSum (ndarray, int, int, ndarray) + object PyArray_Prod (ndarray, int, int, ndarray) + object PyArray_CumProd (ndarray, int, int, ndarray) + object PyArray_All (ndarray, int, ndarray) + object PyArray_Any (ndarray, int, ndarray) + object PyArray_Compress (ndarray, object, int, ndarray) + object PyArray_Flatten (ndarray, NPY_ORDER) + object PyArray_Ravel (ndarray, NPY_ORDER) + npy_intp PyArray_MultiplyList (npy_intp *, int) + int PyArray_MultiplyIntList (int *, int) + void * PyArray_GetPtr (ndarray, npy_intp*) + int PyArray_CompareLists (npy_intp *, npy_intp *, int) + #int PyArray_AsCArray (object*, void *, npy_intp *, int, dtype) + int PyArray_Free (object, void *) + #int PyArray_Converter (object, object*) + int PyArray_IntpFromSequence (object, npy_intp *, int) except -1 + object PyArray_Concatenate (object, int) + object PyArray_InnerProduct (object, object) + object PyArray_MatrixProduct (object, object) + object PyArray_Correlate (object, object, int) + #int PyArray_DescrConverter (object, dtype*) except 0 + #int PyArray_DescrConverter2 (object, dtype*) except 0 + int PyArray_IntpConverter (object, PyArray_Dims *) except 0 + #int PyArray_BufferConverter (object, chunk) except 0 + int PyArray_AxisConverter (object, int *) except 0 + int PyArray_BoolConverter (object, npy_bool *) except 0 + int PyArray_ByteorderConverter (object, char *) except 0 + int PyArray_OrderConverter (object, NPY_ORDER *) except 0 + unsigned char PyArray_EquivTypes (dtype, dtype) # clears errors + #object PyArray_Zeros (int, npy_intp *, dtype, int) + #object PyArray_Empty (int, npy_intp *, dtype, int) + object PyArray_Where (object, object, object) + object PyArray_Arange (double, double, double, int) + #object PyArray_ArangeObj (object, object, object, dtype) + int PyArray_SortkindConverter (object, NPY_SORTKIND *) except 0 + object PyArray_LexSort (object, int) + object PyArray_Round (ndarray, int, ndarray) + unsigned char PyArray_EquivTypenums (int, int) + int PyArray_RegisterDataType (dtype) except -1 + int PyArray_RegisterCastFunc (dtype, int, PyArray_VectorUnaryFunc *) except -1 + int PyArray_RegisterCanCast (dtype, int, NPY_SCALARKIND) except -1 + #void PyArray_InitArrFuncs (PyArray_ArrFuncs *) + object PyArray_IntTupleFromIntp (int, npy_intp *) + int PyArray_ClipmodeConverter (object, NPY_CLIPMODE *) except 0 + #int PyArray_OutputConverter (object, ndarray*) except 0 + object PyArray_BroadcastToShape (object, npy_intp *, int) + #int PyArray_DescrAlignConverter (object, dtype*) except 0 + #int PyArray_DescrAlignConverter2 (object, dtype*) except 0 + int PyArray_SearchsideConverter (object, void *) except 0 + object PyArray_CheckAxis (ndarray, int *, int) + npy_intp PyArray_OverflowMultiplyList (npy_intp *, int) + int PyArray_SetBaseObject(ndarray, base) except -1 # NOTE: steals a reference to base! Use "set_array_base()" instead. + + # The memory handler functions require the NumPy 1.22 API + # and may require defining NPY_TARGET_VERSION + ctypedef struct PyDataMemAllocator: + void *ctx + void* (*malloc) (void *ctx, size_t size) + void* (*calloc) (void *ctx, size_t nelem, size_t elsize) + void* (*realloc) (void *ctx, void *ptr, size_t new_size) + void (*free) (void *ctx, void *ptr, size_t size) + + ctypedef struct PyDataMem_Handler: + char* name + npy_uint8 version + PyDataMemAllocator allocator + + object PyDataMem_SetHandler(object handler) + object PyDataMem_GetHandler() + + # additional datetime related functions are defined below + + +# Typedefs that matches the runtime dtype objects in +# the numpy module. + +# The ones that are commented out needs an IFDEF function +# in Cython to enable them only on the right systems. + +ctypedef npy_int8 int8_t +ctypedef npy_int16 int16_t +ctypedef npy_int32 int32_t +ctypedef npy_int64 int64_t + +ctypedef npy_uint8 uint8_t +ctypedef npy_uint16 uint16_t +ctypedef npy_uint32 uint32_t +ctypedef npy_uint64 uint64_t + +ctypedef npy_float32 float32_t +ctypedef npy_float64 float64_t +#ctypedef npy_float80 float80_t +#ctypedef npy_float128 float128_t + +ctypedef float complex complex64_t +ctypedef double complex complex128_t + +ctypedef npy_longlong longlong_t +ctypedef npy_ulonglong ulonglong_t + +ctypedef npy_intp intp_t +ctypedef npy_uintp uintp_t + +ctypedef npy_double float_t +ctypedef npy_double double_t +ctypedef npy_longdouble longdouble_t + +ctypedef float complex cfloat_t +ctypedef double complex cdouble_t +ctypedef double complex complex_t +ctypedef long double complex clongdouble_t + +cdef inline object PyArray_MultiIterNew1(a): + return PyArray_MultiIterNew(1, a) + +cdef inline object PyArray_MultiIterNew2(a, b): + return PyArray_MultiIterNew(2, a, b) + +cdef inline object PyArray_MultiIterNew3(a, b, c): + return PyArray_MultiIterNew(3, a, b, c) + +cdef inline object PyArray_MultiIterNew4(a, b, c, d): + return PyArray_MultiIterNew(4, a, b, c, d) + +cdef inline object PyArray_MultiIterNew5(a, b, c, d, e): + return PyArray_MultiIterNew(5, a, b, c, d, e) + +cdef inline tuple PyDataType_SHAPE(dtype d): + if PyDataType_HASSUBARRAY(d): + return d.subarray.shape + else: + return () + + +cdef extern from "numpy/ndarrayobject.h": + PyTypeObject PyTimedeltaArrType_Type + PyTypeObject PyDatetimeArrType_Type + ctypedef int64_t npy_timedelta + ctypedef int64_t npy_datetime + +cdef extern from "numpy/ndarraytypes.h": + ctypedef struct PyArray_DatetimeMetaData: + NPY_DATETIMEUNIT base + int64_t num + + ctypedef struct npy_datetimestruct: + int64_t year + int32_t month, day, hour, min, sec, us, ps, as + + # Iterator API added in v1.6 + # + # These don't match the definition in the C API because Cython can't wrap + # function pointers that return functions. + # https://github.com/cython/cython/issues/6720 + ctypedef int (*NpyIter_IterNextFunc "NpyIter_IterNextFunc *")(NpyIter* it) noexcept nogil + ctypedef void (*NpyIter_GetMultiIndexFunc "NpyIter_GetMultiIndexFunc *")(NpyIter* it, npy_intp* outcoords) noexcept nogil + +cdef extern from "numpy/arrayscalars.h": + + # abstract types + ctypedef class numpy.generic [object PyObject]: + pass + ctypedef class numpy.number [object PyObject]: + pass + ctypedef class numpy.integer [object PyObject]: + pass + ctypedef class numpy.signedinteger [object PyObject]: + pass + ctypedef class numpy.unsignedinteger [object PyObject]: + pass + ctypedef class numpy.inexact [object PyObject]: + pass + ctypedef class numpy.floating [object PyObject]: + pass + ctypedef class numpy.complexfloating [object PyObject]: + pass + ctypedef class numpy.flexible [object PyObject]: + pass + ctypedef class numpy.character [object PyObject]: + pass + + ctypedef struct PyDatetimeScalarObject: + # PyObject_HEAD + npy_datetime obval + PyArray_DatetimeMetaData obmeta + + ctypedef struct PyTimedeltaScalarObject: + # PyObject_HEAD + npy_timedelta obval + PyArray_DatetimeMetaData obmeta + + ctypedef enum NPY_DATETIMEUNIT: + NPY_FR_Y + NPY_FR_M + NPY_FR_W + NPY_FR_D + NPY_FR_B + NPY_FR_h + NPY_FR_m + NPY_FR_s + NPY_FR_ms + NPY_FR_us + NPY_FR_ns + NPY_FR_ps + NPY_FR_fs + NPY_FR_as + NPY_FR_GENERIC + + +cdef extern from "numpy/arrayobject.h": + # These are part of the C-API defined in `__multiarray_api.h` + + # NumPy internal definitions in datetime_strings.c: + int get_datetime_iso_8601_strlen "NpyDatetime_GetDatetimeISO8601StrLen" ( + int local, NPY_DATETIMEUNIT base) + int make_iso_8601_datetime "NpyDatetime_MakeISO8601Datetime" ( + npy_datetimestruct *dts, char *outstr, npy_intp outlen, + int local, int utc, NPY_DATETIMEUNIT base, int tzoffset, + NPY_CASTING casting) except -1 + + # NumPy internal definition in datetime.c: + # May return 1 to indicate that object does not appear to be a datetime + # (returns 0 on success). + int convert_pydatetime_to_datetimestruct "NpyDatetime_ConvertPyDateTimeToDatetimeStruct" ( + PyObject *obj, npy_datetimestruct *out, + NPY_DATETIMEUNIT *out_bestunit, int apply_tzinfo) except -1 + int convert_datetime64_to_datetimestruct "NpyDatetime_ConvertDatetime64ToDatetimeStruct" ( + PyArray_DatetimeMetaData *meta, npy_datetime dt, + npy_datetimestruct *out) except -1 + int convert_datetimestruct_to_datetime64 "NpyDatetime_ConvertDatetimeStructToDatetime64"( + PyArray_DatetimeMetaData *meta, const npy_datetimestruct *dts, + npy_datetime *out) except -1 + + +# +# ufunc API +# + +cdef extern from "numpy/ufuncobject.h": + + ctypedef void (*PyUFuncGenericFunction) (char **, npy_intp *, npy_intp *, void *) + + ctypedef class numpy.ufunc [object PyUFuncObject, check_size ignore]: + cdef: + int nin, nout, nargs + int identity + PyUFuncGenericFunction *functions + void **data + int ntypes + int check_return + char *name + char *types + char *doc + void *ptr + PyObject *obj + PyObject *userloops + + cdef enum: + PyUFunc_Zero + PyUFunc_One + PyUFunc_None + # deprecated + UFUNC_FPE_DIVIDEBYZERO + UFUNC_FPE_OVERFLOW + UFUNC_FPE_UNDERFLOW + UFUNC_FPE_INVALID + # use these instead + NPY_FPE_DIVIDEBYZERO + NPY_FPE_OVERFLOW + NPY_FPE_UNDERFLOW + NPY_FPE_INVALID + + object PyUFunc_FromFuncAndData(PyUFuncGenericFunction *, + void **, char *, int, int, int, int, char *, char *, int) + int PyUFunc_RegisterLoopForType(ufunc, int, + PyUFuncGenericFunction, int *, void *) except -1 + void PyUFunc_f_f_As_d_d \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_d_d \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_f_f \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_g_g \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_F_F_As_D_D \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_F_F \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_D_D \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_G_G \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_O_O \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_ff_f_As_dd_d \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_ff_f \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_dd_d \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_gg_g \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_FF_F_As_DD_D \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_DD_D \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_FF_F \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_GG_G \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_OO_O \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_O_O_method \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_OO_O_method \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_On_Om \ + (char **, npy_intp *, npy_intp *, void *) + void PyUFunc_clearfperr() + int PyUFunc_getfperr() + int PyUFunc_ReplaceLoopBySignature \ + (ufunc, PyUFuncGenericFunction, int *, PyUFuncGenericFunction *) + object PyUFunc_FromFuncAndDataAndSignature \ + (PyUFuncGenericFunction *, void **, char *, int, int, int, + int, char *, char *, int, char *) + + int _import_umath() except -1 + +cdef inline void set_array_base(ndarray arr, object base): + Py_INCREF(base) # important to do this before stealing the reference below! + PyArray_SetBaseObject(arr, base) + +cdef inline object get_array_base(ndarray arr): + base = PyArray_BASE(arr) + if base is NULL: + return None + return base + +# Versions of the import_* functions which are more suitable for +# Cython code. +cdef inline int import_array() except -1: + try: + __pyx_import_array() + except Exception: + raise ImportError("numpy._core.multiarray failed to import") + +cdef inline int import_umath() except -1: + try: + _import_umath() + except Exception: + raise ImportError("numpy._core.umath failed to import") + +cdef inline int import_ufunc() except -1: + try: + _import_umath() + except Exception: + raise ImportError("numpy._core.umath failed to import") + + +cdef inline bint is_timedelta64_object(object obj): + """ + Cython equivalent of `isinstance(obj, np.timedelta64)` + + Parameters + ---------- + obj : object + + Returns + ------- + bool + """ + return PyObject_TypeCheck(obj, &PyTimedeltaArrType_Type) + + +cdef inline bint is_datetime64_object(object obj): + """ + Cython equivalent of `isinstance(obj, np.datetime64)` + + Parameters + ---------- + obj : object + + Returns + ------- + bool + """ + return PyObject_TypeCheck(obj, &PyDatetimeArrType_Type) + + +cdef inline npy_datetime get_datetime64_value(object obj) nogil: + """ + returns the int64 value underlying scalar numpy datetime64 object + + Note that to interpret this as a datetime, the corresponding unit is + also needed. That can be found using `get_datetime64_unit`. + """ + return (obj).obval + + +cdef inline npy_timedelta get_timedelta64_value(object obj) nogil: + """ + returns the int64 value underlying scalar numpy timedelta64 object + """ + return (obj).obval + + +cdef inline NPY_DATETIMEUNIT get_datetime64_unit(object obj) nogil: + """ + returns the unit part of the dtype for a numpy datetime64 object. + """ + return (obj).obmeta.base + + +cdef extern from "numpy/arrayobject.h": + + ctypedef struct NpyIter: + pass + + cdef enum: + NPY_FAIL + NPY_SUCCEED + + cdef enum: + # Track an index representing C order + NPY_ITER_C_INDEX + # Track an index representing Fortran order + NPY_ITER_F_INDEX + # Track a multi-index + NPY_ITER_MULTI_INDEX + # User code external to the iterator does the 1-dimensional innermost loop + NPY_ITER_EXTERNAL_LOOP + # Convert all the operands to a common data type + NPY_ITER_COMMON_DTYPE + # Operands may hold references, requiring API access during iteration + NPY_ITER_REFS_OK + # Zero-sized operands should be permitted, iteration checks IterSize for 0 + NPY_ITER_ZEROSIZE_OK + # Permits reductions (size-0 stride with dimension size > 1) + NPY_ITER_REDUCE_OK + # Enables sub-range iteration + NPY_ITER_RANGED + # Enables buffering + NPY_ITER_BUFFERED + # When buffering is enabled, grows the inner loop if possible + NPY_ITER_GROWINNER + # Delay allocation of buffers until first Reset* call + NPY_ITER_DELAY_BUFALLOC + # When NPY_KEEPORDER is specified, disable reversing negative-stride axes + NPY_ITER_DONT_NEGATE_STRIDES + NPY_ITER_COPY_IF_OVERLAP + # The operand will be read from and written to + NPY_ITER_READWRITE + # The operand will only be read from + NPY_ITER_READONLY + # The operand will only be written to + NPY_ITER_WRITEONLY + # The operand's data must be in native byte order + NPY_ITER_NBO + # The operand's data must be aligned + NPY_ITER_ALIGNED + # The operand's data must be contiguous (within the inner loop) + NPY_ITER_CONTIG + # The operand may be copied to satisfy requirements + NPY_ITER_COPY + # The operand may be copied with WRITEBACKIFCOPY to satisfy requirements + NPY_ITER_UPDATEIFCOPY + # Allocate the operand if it is NULL + NPY_ITER_ALLOCATE + # If an operand is allocated, don't use any subtype + NPY_ITER_NO_SUBTYPE + # This is a virtual array slot, operand is NULL but temporary data is there + NPY_ITER_VIRTUAL + # Require that the dimension match the iterator dimensions exactly + NPY_ITER_NO_BROADCAST + # A mask is being used on this array, affects buffer -> array copy + NPY_ITER_WRITEMASKED + # This array is the mask for all WRITEMASKED operands + NPY_ITER_ARRAYMASK + # Assume iterator order data access for COPY_IF_OVERLAP + NPY_ITER_OVERLAP_ASSUME_ELEMENTWISE + + # construction and destruction functions + NpyIter* NpyIter_New(ndarray arr, npy_uint32 flags, NPY_ORDER order, + NPY_CASTING casting, dtype datatype) except NULL + NpyIter* NpyIter_MultiNew(npy_intp nop, PyArrayObject** op, npy_uint32 flags, + NPY_ORDER order, NPY_CASTING casting, npy_uint32* + op_flags, PyArray_Descr** op_dtypes) except NULL + NpyIter* NpyIter_AdvancedNew(npy_intp nop, PyArrayObject** op, + npy_uint32 flags, NPY_ORDER order, + NPY_CASTING casting, npy_uint32* op_flags, + PyArray_Descr** op_dtypes, int oa_ndim, + int** op_axes, const npy_intp* itershape, + npy_intp buffersize) except NULL + NpyIter* NpyIter_Copy(NpyIter* it) except NULL + int NpyIter_RemoveAxis(NpyIter* it, int axis) except NPY_FAIL + int NpyIter_RemoveMultiIndex(NpyIter* it) except NPY_FAIL + int NpyIter_EnableExternalLoop(NpyIter* it) except NPY_FAIL + int NpyIter_Deallocate(NpyIter* it) except NPY_FAIL + int NpyIter_Reset(NpyIter* it, char** errmsg) except NPY_FAIL + int NpyIter_ResetToIterIndexRange(NpyIter* it, npy_intp istart, + npy_intp iend, char** errmsg) except NPY_FAIL + int NpyIter_ResetBasePointers(NpyIter* it, char** baseptrs, char** errmsg) except NPY_FAIL + int NpyIter_GotoMultiIndex(NpyIter* it, const npy_intp* multi_index) except NPY_FAIL + int NpyIter_GotoIndex(NpyIter* it, npy_intp index) except NPY_FAIL + npy_intp NpyIter_GetIterSize(NpyIter* it) nogil + npy_intp NpyIter_GetIterIndex(NpyIter* it) nogil + void NpyIter_GetIterIndexRange(NpyIter* it, npy_intp* istart, + npy_intp* iend) nogil + int NpyIter_GotoIterIndex(NpyIter* it, npy_intp iterindex) except NPY_FAIL + npy_bool NpyIter_HasDelayedBufAlloc(NpyIter* it) nogil + npy_bool NpyIter_HasExternalLoop(NpyIter* it) nogil + npy_bool NpyIter_HasMultiIndex(NpyIter* it) nogil + npy_bool NpyIter_HasIndex(NpyIter* it) nogil + npy_bool NpyIter_RequiresBuffering(NpyIter* it) nogil + npy_bool NpyIter_IsBuffered(NpyIter* it) nogil + npy_bool NpyIter_IsGrowInner(NpyIter* it) nogil + npy_intp NpyIter_GetBufferSize(NpyIter* it) nogil + int NpyIter_GetNDim(NpyIter* it) nogil + int NpyIter_GetNOp(NpyIter* it) nogil + npy_intp* NpyIter_GetAxisStrideArray(NpyIter* it, int axis) except NULL + int NpyIter_GetShape(NpyIter* it, npy_intp* outshape) nogil + PyArray_Descr** NpyIter_GetDescrArray(NpyIter* it) + PyArrayObject** NpyIter_GetOperandArray(NpyIter* it) + ndarray NpyIter_GetIterView(NpyIter* it, npy_intp i) + void NpyIter_GetReadFlags(NpyIter* it, char* outreadflags) + void NpyIter_GetWriteFlags(NpyIter* it, char* outwriteflags) + int NpyIter_CreateCompatibleStrides(NpyIter* it, npy_intp itemsize, + npy_intp* outstrides) except NPY_FAIL + npy_bool NpyIter_IsFirstVisit(NpyIter* it, int iop) nogil + # functions for iterating an NpyIter object + # + # These don't match the definition in the C API because Cython can't wrap + # function pointers that return functions. + NpyIter_IterNextFunc* NpyIter_GetIterNext(NpyIter* it, char** errmsg) except NULL + NpyIter_GetMultiIndexFunc* NpyIter_GetGetMultiIndex(NpyIter* it, + char** errmsg) except NULL + char** NpyIter_GetDataPtrArray(NpyIter* it) nogil + char** NpyIter_GetInitialDataPtrArray(NpyIter* it) nogil + npy_intp* NpyIter_GetIndexPtr(NpyIter* it) + npy_intp* NpyIter_GetInnerStrideArray(NpyIter* it) nogil + npy_intp* NpyIter_GetInnerLoopSizePtr(NpyIter* it) nogil + void NpyIter_GetInnerFixedStrideArray(NpyIter* it, npy_intp* outstrides) nogil + npy_bool NpyIter_IterationNeedsAPI(NpyIter* it) nogil + void NpyIter_DebugPrint(NpyIter* it) + +# NpyString API +cdef extern from "numpy/ndarraytypes.h": + ctypedef struct npy_string_allocator: + pass + + ctypedef struct npy_packed_static_string: + pass + + ctypedef struct npy_static_string: + size_t size + const char *buf + + ctypedef struct PyArray_StringDTypeObject: + PyArray_Descr base + PyObject *na_object + char coerce + char has_nan_na + char has_string_na + char array_owned + npy_static_string default_string + npy_static_string na_name + npy_string_allocator *allocator + +cdef extern from "numpy/arrayobject.h": + npy_string_allocator *NpyString_acquire_allocator(const PyArray_StringDTypeObject *descr) + void NpyString_acquire_allocators(size_t n_descriptors, PyArray_Descr *const descrs[], npy_string_allocator *allocators[]) + void NpyString_release_allocator(npy_string_allocator *allocator) + void NpyString_release_allocators(size_t length, npy_string_allocator *allocators[]) + int NpyString_load(npy_string_allocator *allocator, const npy_packed_static_string *packed_string, npy_static_string *unpacked_string) + int NpyString_pack_null(npy_string_allocator *allocator, npy_packed_static_string *packed_string) + int NpyString_pack(npy_string_allocator *allocator, npy_packed_static_string *packed_string, const char *buf, size_t size) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/__init__.py b/.venv_haddock/lib/python3.12/site-packages/numpy/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..ef7c1ed7678aeb40101965a153fa5ba24579a544 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/__init__.py @@ -0,0 +1,942 @@ +""" +NumPy +===== + +Provides + 1. An array object of arbitrary homogeneous items + 2. Fast mathematical operations over arrays + 3. Linear Algebra, Fourier Transforms, Random Number Generation + +How to use the documentation +---------------------------- +Documentation is available in two forms: docstrings provided +with the code, and a loose standing reference guide, available from +`the NumPy homepage `_. + +We recommend exploring the docstrings using +`IPython `_, an advanced Python shell with +TAB-completion and introspection capabilities. See below for further +instructions. + +The docstring examples assume that `numpy` has been imported as ``np``:: + + >>> import numpy as np + +Code snippets are indicated by three greater-than signs:: + + >>> x = 42 + >>> x = x + 1 + +Use the built-in ``help`` function to view a function's docstring:: + + >>> help(np.sort) + ... # doctest: +SKIP + +For some objects, ``np.info(obj)`` may provide additional help. This is +particularly true if you see the line "Help on ufunc object:" at the top +of the help() page. Ufuncs are implemented in C, not Python, for speed. +The native Python help() does not know how to view their help, but our +np.info() function does. + +Available subpackages +--------------------- +lib + Basic functions used by several sub-packages. +random + Core Random Tools +linalg + Core Linear Algebra Tools +fft + Core FFT routines +polynomial + Polynomial tools +testing + NumPy testing tools +distutils + Enhancements to distutils with support for + Fortran compilers support and more (for Python <= 3.11) + +Utilities +--------- +test + Run numpy unittests +show_config + Show numpy build configuration +__version__ + NumPy version string + +Viewing documentation using IPython +----------------------------------- + +Start IPython and import `numpy` usually under the alias ``np``: `import +numpy as np`. Then, directly past or use the ``%cpaste`` magic to paste +examples into the shell. To see which functions are available in `numpy`, +type ``np.`` (where ```` refers to the TAB key), or use +``np.*cos*?`` (where ```` refers to the ENTER key) to narrow +down the list. To view the docstring for a function, use +``np.cos?`` (to view the docstring) and ``np.cos??`` (to view +the source code). + +Copies vs. in-place operation +----------------------------- +Most of the functions in `numpy` return a copy of the array argument +(e.g., `np.sort`). In-place versions of these functions are often +available as array methods, i.e. ``x = np.array([1,2,3]); x.sort()``. +Exceptions to this rule are documented. + +""" +import os +import sys +import warnings + +# If a version with git hash was stored, use that instead +from . import version +from ._expired_attrs_2_0 import __expired_attributes__ +from ._globals import _CopyMode, _NoValue +from .version import __version__ + +# We first need to detect if we're being called as part of the numpy setup +# procedure itself in a reliable manner. +try: + __NUMPY_SETUP__ # noqa: B018 +except NameError: + __NUMPY_SETUP__ = False + +if __NUMPY_SETUP__: + sys.stderr.write('Running from numpy source directory.\n') +else: + # Allow distributors to run custom init code before importing numpy._core + from . import _distributor_init + + try: + from numpy.__config__ import show_config + except ImportError as e: + if isinstance(e, ModuleNotFoundError) and e.name == "numpy.__config__": + # The __config__ module itself was not found, so add this info: + msg = """Error importing numpy: you should not try to import numpy from + its source directory; please exit the numpy source tree, and relaunch + your python interpreter from there.""" + raise ImportError(msg) from e + raise + + from . import _core + from ._core import ( + False_, + ScalarType, + True_, + abs, + absolute, + acos, + acosh, + add, + all, + allclose, + amax, + amin, + any, + arange, + arccos, + arccosh, + arcsin, + arcsinh, + arctan, + arctan2, + arctanh, + argmax, + argmin, + argpartition, + argsort, + argwhere, + around, + array, + array2string, + array_equal, + array_equiv, + array_repr, + array_str, + asanyarray, + asarray, + ascontiguousarray, + asfortranarray, + asin, + asinh, + astype, + atan, + atan2, + atanh, + atleast_1d, + atleast_2d, + atleast_3d, + base_repr, + binary_repr, + bitwise_and, + bitwise_count, + bitwise_invert, + bitwise_left_shift, + bitwise_not, + bitwise_or, + bitwise_right_shift, + bitwise_xor, + block, + bool, + bool_, + broadcast, + busday_count, + busday_offset, + busdaycalendar, + byte, + bytes_, + can_cast, + cbrt, + cdouble, + ceil, + character, + choose, + clip, + clongdouble, + complex64, + complex128, + complexfloating, + compress, + concat, + concatenate, + conj, + conjugate, + convolve, + copysign, + copyto, + correlate, + cos, + cosh, + count_nonzero, + cross, + csingle, + cumprod, + cumsum, + cumulative_prod, + cumulative_sum, + datetime64, + datetime_as_string, + datetime_data, + deg2rad, + degrees, + diagonal, + divide, + divmod, + dot, + double, + dtype, + e, + einsum, + einsum_path, + empty, + empty_like, + equal, + errstate, + euler_gamma, + exp, + exp2, + expm1, + fabs, + finfo, + flatiter, + flatnonzero, + flexible, + float16, + float32, + float64, + float_power, + floating, + floor, + floor_divide, + fmax, + fmin, + fmod, + format_float_positional, + format_float_scientific, + frexp, + from_dlpack, + frombuffer, + fromfile, + fromfunction, + fromiter, + frompyfunc, + fromstring, + full, + full_like, + gcd, + generic, + geomspace, + get_printoptions, + getbufsize, + geterr, + geterrcall, + greater, + greater_equal, + half, + heaviside, + hstack, + hypot, + identity, + iinfo, + indices, + inexact, + inf, + inner, + int8, + int16, + int32, + int64, + int_, + intc, + integer, + intp, + invert, + is_busday, + isclose, + isdtype, + isfinite, + isfortran, + isinf, + isnan, + isnat, + isscalar, + issubdtype, + lcm, + ldexp, + left_shift, + less, + less_equal, + lexsort, + linspace, + little_endian, + log, + log1p, + log2, + log10, + logaddexp, + logaddexp2, + logical_and, + logical_not, + logical_or, + logical_xor, + logspace, + long, + longdouble, + longlong, + matmul, + matrix_transpose, + matvec, + max, + maximum, + may_share_memory, + mean, + memmap, + min, + min_scalar_type, + minimum, + mod, + modf, + moveaxis, + multiply, + nan, + ndarray, + ndim, + nditer, + negative, + nested_iters, + newaxis, + nextafter, + nonzero, + not_equal, + number, + object_, + ones, + ones_like, + outer, + partition, + permute_dims, + pi, + positive, + pow, + power, + printoptions, + prod, + promote_types, + ptp, + put, + putmask, + rad2deg, + radians, + ravel, + recarray, + reciprocal, + record, + remainder, + repeat, + require, + reshape, + resize, + result_type, + right_shift, + rint, + roll, + rollaxis, + round, + sctypeDict, + searchsorted, + set_printoptions, + setbufsize, + seterr, + seterrcall, + shape, + shares_memory, + short, + sign, + signbit, + signedinteger, + sin, + single, + sinh, + size, + sort, + spacing, + sqrt, + square, + squeeze, + stack, + std, + str_, + subtract, + sum, + swapaxes, + take, + tan, + tanh, + tensordot, + timedelta64, + trace, + transpose, + true_divide, + trunc, + typecodes, + ubyte, + ufunc, + uint, + uint8, + uint16, + uint32, + uint64, + uintc, + uintp, + ulong, + ulonglong, + unsignedinteger, + unstack, + ushort, + var, + vdot, + vecdot, + vecmat, + void, + vstack, + where, + zeros, + zeros_like, + ) + + # NOTE: It's still under discussion whether these aliases + # should be removed. + for ta in ["float96", "float128", "complex192", "complex256"]: + try: + globals()[ta] = getattr(_core, ta) + except AttributeError: + pass + del ta + + from . import lib, matrixlib as _mat + from .lib import scimath as emath + from .lib._arraypad_impl import pad + from .lib._arraysetops_impl import ( + ediff1d, + intersect1d, + isin, + setdiff1d, + setxor1d, + union1d, + unique, + unique_all, + unique_counts, + unique_inverse, + unique_values, + ) + from .lib._function_base_impl import ( + angle, + append, + asarray_chkfinite, + average, + bartlett, + bincount, + blackman, + copy, + corrcoef, + cov, + delete, + diff, + digitize, + extract, + flip, + gradient, + hamming, + hanning, + i0, + insert, + interp, + iterable, + kaiser, + median, + meshgrid, + percentile, + piecewise, + place, + quantile, + rot90, + select, + sinc, + sort_complex, + trapezoid, + trim_zeros, + unwrap, + vectorize, + ) + from .lib._histograms_impl import histogram, histogram_bin_edges, histogramdd + from .lib._index_tricks_impl import ( + c_, + diag_indices, + diag_indices_from, + fill_diagonal, + index_exp, + ix_, + mgrid, + ndenumerate, + ndindex, + ogrid, + r_, + ravel_multi_index, + s_, + unravel_index, + ) + from .lib._nanfunctions_impl import ( + nanargmax, + nanargmin, + nancumprod, + nancumsum, + nanmax, + nanmean, + nanmedian, + nanmin, + nanpercentile, + nanprod, + nanquantile, + nanstd, + nansum, + nanvar, + ) + from .lib._npyio_impl import ( + fromregex, + genfromtxt, + load, + loadtxt, + packbits, + save, + savetxt, + savez, + savez_compressed, + unpackbits, + ) + from .lib._polynomial_impl import ( + poly, + poly1d, + polyadd, + polyder, + polydiv, + polyfit, + polyint, + polymul, + polysub, + polyval, + roots, + ) + from .lib._shape_base_impl import ( + apply_along_axis, + apply_over_axes, + array_split, + column_stack, + dsplit, + dstack, + expand_dims, + hsplit, + kron, + put_along_axis, + row_stack, + split, + take_along_axis, + tile, + vsplit, + ) + from .lib._stride_tricks_impl import ( + broadcast_arrays, + broadcast_shapes, + broadcast_to, + ) + from .lib._twodim_base_impl import ( + diag, + diagflat, + eye, + fliplr, + flipud, + histogram2d, + mask_indices, + tri, + tril, + tril_indices, + tril_indices_from, + triu, + triu_indices, + triu_indices_from, + vander, + ) + from .lib._type_check_impl import ( + common_type, + imag, + iscomplex, + iscomplexobj, + isreal, + isrealobj, + mintypecode, + nan_to_num, + real, + real_if_close, + typename, + ) + from .lib._ufunclike_impl import fix, isneginf, isposinf + from .lib._utils_impl import get_include, info, show_runtime + from .matrixlib import asmatrix, bmat, matrix + + # public submodules are imported lazily, therefore are accessible from + # __getattr__. Note that `distutils` (deprecated) and `array_api` + # (experimental label) are not added here, because `from numpy import *` + # must not raise any warnings - that's too disruptive. + __numpy_submodules__ = { + "linalg", "fft", "dtypes", "random", "polynomial", "ma", + "exceptions", "lib", "ctypeslib", "testing", "typing", + "f2py", "test", "rec", "char", "core", "strings", + } + + # We build warning messages for former attributes + _msg = ( + "module 'numpy' has no attribute '{n}'.\n" + "`np.{n}` was a deprecated alias for the builtin `{n}`. " + "To avoid this error in existing code, use `{n}` by itself. " + "Doing this will not modify any behavior and is safe. {extended_msg}\n" + "The aliases was originally deprecated in NumPy 1.20; for more " + "details and guidance see the original release note at:\n" + " https://numpy.org/devdocs/release/1.20.0-notes.html#deprecations") + + _specific_msg = ( + "If you specifically wanted the numpy scalar type, use `np.{}` here.") + + _int_extended_msg = ( + "When replacing `np.{}`, you may wish to use e.g. `np.int64` " + "or `np.int32` to specify the precision. If you wish to review " + "your current use, check the release note link for " + "additional information.") + + _type_info = [ + ("object", ""), # The NumPy scalar only exists by name. + ("float", _specific_msg.format("float64")), + ("complex", _specific_msg.format("complex128")), + ("str", _specific_msg.format("str_")), + ("int", _int_extended_msg.format("int"))] + + __former_attrs__ = { + n: _msg.format(n=n, extended_msg=extended_msg) + for n, extended_msg in _type_info + } + + # Some of these could be defined right away, but most were aliases to + # the Python objects and only removed in NumPy 1.24. Defining them should + # probably wait for NumPy 1.26 or 2.0. + # When defined, these should possibly not be added to `__all__` to avoid + # import with `from numpy import *`. + __future_scalars__ = {"str", "bytes", "object"} + + __array_api_version__ = "2024.12" + + from ._array_api_info import __array_namespace_info__ + + __all__ = list( + __numpy_submodules__ | + set(_core.__all__) | + set(_mat.__all__) | + set(lib._histograms_impl.__all__) | + set(lib._nanfunctions_impl.__all__) | + set(lib._function_base_impl.__all__) | + set(lib._twodim_base_impl.__all__) | + set(lib._shape_base_impl.__all__) | + set(lib._type_check_impl.__all__) | + set(lib._arraysetops_impl.__all__) | + set(lib._ufunclike_impl.__all__) | + set(lib._arraypad_impl.__all__) | + set(lib._utils_impl.__all__) | + set(lib._stride_tricks_impl.__all__) | + set(lib._polynomial_impl.__all__) | + set(lib._npyio_impl.__all__) | + set(lib._index_tricks_impl.__all__) | + {"emath", "show_config", "__version__", "__array_namespace_info__"} + ) + + # Filter out Cython harmless warnings + warnings.filterwarnings("ignore", message="numpy.dtype size changed") + warnings.filterwarnings("ignore", message="numpy.ufunc size changed") + warnings.filterwarnings("ignore", message="numpy.ndarray size changed") + + def __getattr__(attr): + # Warn for expired attributes + import warnings + + if attr == "linalg": + import numpy.linalg as linalg + return linalg + elif attr == "fft": + import numpy.fft as fft + return fft + elif attr == "dtypes": + import numpy.dtypes as dtypes + return dtypes + elif attr == "random": + import numpy.random as random + return random + elif attr == "polynomial": + import numpy.polynomial as polynomial + return polynomial + elif attr == "ma": + import numpy.ma as ma + return ma + elif attr == "ctypeslib": + import numpy.ctypeslib as ctypeslib + return ctypeslib + elif attr == "exceptions": + import numpy.exceptions as exceptions + return exceptions + elif attr == "testing": + import numpy.testing as testing + return testing + elif attr == "matlib": + import numpy.matlib as matlib + return matlib + elif attr == "f2py": + import numpy.f2py as f2py + return f2py + elif attr == "typing": + import numpy.typing as typing + return typing + elif attr == "rec": + import numpy.rec as rec + return rec + elif attr == "char": + import numpy.char as char + return char + elif attr == "array_api": + raise AttributeError("`numpy.array_api` is not available from " + "numpy 2.0 onwards", name=None) + elif attr == "core": + import numpy.core as core + return core + elif attr == "strings": + import numpy.strings as strings + return strings + elif attr == "distutils": + if 'distutils' in __numpy_submodules__: + import numpy.distutils as distutils + return distutils + else: + raise AttributeError("`numpy.distutils` is not available from " + "Python 3.12 onwards", name=None) + + if attr in __future_scalars__: + # And future warnings for those that will change, but also give + # the AttributeError + warnings.warn( + f"In the future `np.{attr}` will be defined as the " + "corresponding NumPy scalar.", FutureWarning, stacklevel=2) + + if attr in __former_attrs__: + raise AttributeError(__former_attrs__[attr], name=None) + + if attr in __expired_attributes__: + raise AttributeError( + f"`np.{attr}` was removed in the NumPy 2.0 release. " + f"{__expired_attributes__[attr]}", + name=None + ) + + if attr == "chararray": + warnings.warn( + "`np.chararray` is deprecated and will be removed from " + "the main namespace in the future. Use an array with a string " + "or bytes dtype instead.", DeprecationWarning, stacklevel=2) + import numpy.char as char + return char.chararray + + raise AttributeError(f"module {__name__!r} has no attribute {attr!r}") + + def __dir__(): + public_symbols = ( + globals().keys() | __numpy_submodules__ + ) + public_symbols -= { + "matrixlib", "matlib", "tests", "conftest", "version", + "distutils", "array_api" + } + return list(public_symbols) + + # Pytest testing + from numpy._pytesttester import PytestTester + test = PytestTester(__name__) + del PytestTester + + def _sanity_check(): + """ + Quick sanity checks for common bugs caused by environment. + There are some cases e.g. with wrong BLAS ABI that cause wrong + results under specific runtime conditions that are not necessarily + achieved during test suite runs, and it is useful to catch those early. + + See https://github.com/numpy/numpy/issues/8577 and other + similar bug reports. + + """ + try: + x = ones(2, dtype=float32) + if not abs(x.dot(x) - float32(2.0)) < 1e-5: + raise AssertionError + except AssertionError: + msg = ("The current Numpy installation ({!r}) fails to " + "pass simple sanity checks. This can be caused for example " + "by incorrect BLAS library being linked in, or by mixing " + "package managers (pip, conda, apt, ...). Search closed " + "numpy issues for similar problems.") + raise RuntimeError(msg.format(__file__)) from None + + _sanity_check() + del _sanity_check + + def _mac_os_check(): + """ + Quick Sanity check for Mac OS look for accelerate build bugs. + Testing numpy polyfit calls init_dgelsd(LAPACK) + """ + try: + c = array([3., 2., 1.]) + x = linspace(0, 2, 5) + y = polyval(c, x) + _ = polyfit(x, y, 2, cov=True) + except ValueError: + pass + + if sys.platform == "darwin": + from . import exceptions + with warnings.catch_warnings(record=True) as w: + _mac_os_check() + # Throw runtime error, if the test failed + # Check for warning and report the error_message + if len(w) > 0: + for _wn in w: + if _wn.category is exceptions.RankWarning: + # Ignore other warnings, they may not be relevant (see gh-25433) + error_message = ( + f"{_wn.category.__name__}: {_wn.message}" + ) + msg = ( + "Polyfit sanity test emitted a warning, most likely due " + "to using a buggy Accelerate backend." + "\nIf you compiled yourself, more information is available at:" # noqa: E501 + "\nhttps://numpy.org/devdocs/building/index.html" + "\nOtherwise report this to the vendor " + f"that provided NumPy.\n\n{error_message}\n") + raise RuntimeError(msg) + del _wn + del w + del _mac_os_check + + def blas_fpe_check(): + # Check if BLAS adds spurious FPEs, mostly seen on M4 arms with Accelerate. + with errstate(all='raise'): + x = ones((20, 20)) + try: + x @ x + except FloatingPointError: + res = _core._multiarray_umath._blas_supports_fpe(False) + if res: # res was not modified (hardcoded to True for now) + warnings.warn( + "Spurious warnings given by blas but suppression not " + "set up on this platform. Please open a NumPy issue.", + UserWarning, stacklevel=2) + + blas_fpe_check() + del blas_fpe_check + + def hugepage_setup(): + """ + We usually use madvise hugepages support, but on some old kernels it + is slow and thus better avoided. Specifically kernel version 4.6 + had a bug fix which probably fixed this: + https://github.com/torvalds/linux/commit/7cf91a98e607c2f935dbcc177d70011e95b8faff + """ + use_hugepage = os.environ.get("NUMPY_MADVISE_HUGEPAGE", None) + if sys.platform == "linux" and use_hugepage is None: + # If there is an issue with parsing the kernel version, + # set use_hugepage to 0. Usage of LooseVersion will handle + # the kernel version parsing better, but avoided since it + # will increase the import time. + # See: #16679 for related discussion. + try: + use_hugepage = 1 + kernel_version = os.uname().release.split(".")[:2] + kernel_version = tuple(int(v) for v in kernel_version) + if kernel_version < (4, 6): + use_hugepage = 0 + except ValueError: + use_hugepage = 0 + elif use_hugepage is None: + # This is not Linux, so it should not matter, just enable anyway + use_hugepage = 1 + else: + use_hugepage = int(use_hugepage) + return use_hugepage + + # Note that this will currently only make a difference on Linux + _core.multiarray._set_madvise_hugepage(hugepage_setup()) + del hugepage_setup + + # Give a warning if NumPy is reloaded or imported on a sub-interpreter + # We do this from python, since the C-module may not be reloaded and + # it is tidier organized. + _core.multiarray._multiarray_umath._reload_guard() + + # TODO: Remove the environment variable entirely now that it is "weak" + if (os.environ.get("NPY_PROMOTION_STATE", "weak") != "weak"): + warnings.warn( + "NPY_PROMOTION_STATE was a temporary feature for NumPy 2.0 " + "transition and is ignored after NumPy 2.2.", + UserWarning, stacklevel=2) + + # Tell PyInstaller where to find hook-numpy.py + def _pyinstaller_hooks_dir(): + from pathlib import Path + return [str(Path(__file__).with_name("_pyinstaller").resolve())] + + +# Remove symbols imported for internal use +del os, sys, warnings diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/__init__.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/__init__.pyi new file mode 100644 index 0000000000000000000000000000000000000000..28bbe31ca98a35eb6e576af2ca959d1cb4a148b4 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/__init__.pyi @@ -0,0 +1,6202 @@ +# ruff: noqa: I001 +import builtins +import sys +import mmap +import ctypes as ct +import array as _array +import datetime as dt +import inspect +from abc import abstractmethod +from types import EllipsisType, ModuleType, TracebackType, MappingProxyType, GenericAlias +from decimal import Decimal +from fractions import Fraction +from uuid import UUID + +import numpy as np +from numpy.__config__ import show as show_config +from numpy._pytesttester import PytestTester +from numpy._core._internal import _ctypes + +from numpy._typing import ( # type: ignore[deprecated] + # Arrays + ArrayLike, + NDArray, + _SupportsArray, + _NestedSequence, + _ArrayLike, + _ArrayLikeBool_co, + _ArrayLikeUInt_co, + _ArrayLikeInt, + _ArrayLikeInt_co, + _ArrayLikeFloat64_co, + _ArrayLikeFloat_co, + _ArrayLikeComplex128_co, + _ArrayLikeComplex_co, + _ArrayLikeNumber_co, + _ArrayLikeObject_co, + _ArrayLikeBytes_co, + _ArrayLikeStr_co, + _ArrayLikeString_co, + _ArrayLikeTD64_co, + _ArrayLikeDT64_co, + # DTypes + DTypeLike, + _DTypeLike, + _DTypeLikeVoid, + _VoidDTypeLike, + # Shapes + _AnyShape, + _Shape, + _ShapeLike, + # Scalars + _CharLike_co, + _IntLike_co, + _FloatLike_co, + _TD64Like_co, + _NumberLike_co, + _ScalarLike_co, + # `number` precision + NBitBase, + # NOTE: Do not remove the extended precision bit-types even if seemingly unused; + # they're used by the mypy plugin + _128Bit, + _96Bit, + _64Bit, + _32Bit, + _16Bit, + _8Bit, + _NBitByte, + _NBitShort, + _NBitIntC, + _NBitIntP, + _NBitLong, + _NBitLongLong, + _NBitHalf, + _NBitSingle, + _NBitDouble, + _NBitLongDouble, + # Character codes + _BoolCodes, + _UInt8Codes, + _UInt16Codes, + _UInt32Codes, + _UInt64Codes, + _Int8Codes, + _Int16Codes, + _Int32Codes, + _Int64Codes, + _Float16Codes, + _Float32Codes, + _Float64Codes, + _Complex64Codes, + _Complex128Codes, + _ByteCodes, + _ShortCodes, + _IntCCodes, + _IntPCodes, + _LongCodes, + _LongLongCodes, + _UByteCodes, + _UShortCodes, + _UIntCCodes, + _UIntPCodes, + _ULongCodes, + _ULongLongCodes, + _HalfCodes, + _SingleCodes, + _DoubleCodes, + _LongDoubleCodes, + _CSingleCodes, + _CDoubleCodes, + _CLongDoubleCodes, + _DT64Codes, + _TD64Codes, + _StrCodes, + _BytesCodes, + _VoidCodes, + _ObjectCodes, + _StringCodes, + _UnsignedIntegerCodes, + _SignedIntegerCodes, + _IntegerCodes, + _FloatingCodes, + _ComplexFloatingCodes, + _InexactCodes, + _CharacterCodes, + # Ufuncs + _UFunc_Nin1_Nout1, + _UFunc_Nin2_Nout1, + _UFunc_Nin1_Nout2, + _UFunc_Nin2_Nout2, + _GUFunc_Nin2_Nout1, +) + +# NOTE: Numpy's mypy plugin is used for removing the types unavailable to the specific platform +from numpy._typing._extended_precision import ( + float96, + float128, + complex192, + complex256, +) + +from numpy._array_api_info import __array_namespace_info__ + +from collections.abc import ( + Callable, + Iterable, + Iterator, + Mapping, + Sequence, +) + +if sys.version_info >= (3, 12): + from collections.abc import Buffer as _SupportsBuffer +else: + _SupportsBuffer: TypeAlias = ( + bytes + | bytearray + | memoryview + | _array.array[Any] + | mmap.mmap + | NDArray[Any] + | generic + ) + +from typing import ( + Any, + ClassVar, + Final, + Generic, + Literal as L, + LiteralString, + Never, + NoReturn, + Protocol, + Self, + SupportsComplex, + SupportsFloat, + SupportsInt, + SupportsIndex, + TypeAlias, + TypedDict, + final, + overload, + type_check_only, +) + +# NOTE: `typing_extensions` and `_typeshed` are always available in `.pyi` stubs, even +# if not available at runtime. This is because the `typeshed` stubs for the standard +# library include `typing_extensions` stubs: +# https://github.com/python/typeshed/blob/main/stdlib/typing_extensions.pyi +from _typeshed import Incomplete, StrOrBytesPath, SupportsFlush, SupportsLenAndGetItem, SupportsWrite +from typing_extensions import CapsuleType, TypeVar, deprecated, override + +from numpy import ( + char, + core, + ctypeslib, + dtypes, + exceptions, + f2py, + fft, + lib, + linalg, + ma, + polynomial, + random, + rec, + strings, + testing, + typing, +) + +# available through `__getattr__`, but not in `__all__` or `__dir__` +from numpy import ( + __config__ as __config__, + matlib as matlib, + matrixlib as matrixlib, + version as version, +) +if sys.version_info < (3, 12): + from numpy import distutils as distutils + +from numpy._core.records import ( + record, + recarray, +) + +from numpy._core.function_base import ( + linspace, + logspace, + geomspace, +) + +from numpy._core.fromnumeric import ( + take, + reshape, + choose, + repeat, + put, + swapaxes, + transpose, + matrix_transpose, + partition, + argpartition, + sort, + argsort, + argmax, + argmin, + searchsorted, + resize, + squeeze, + diagonal, + trace, + ravel, + nonzero, + shape, + compress, + clip, + sum, + all, + any, + cumsum, + cumulative_sum, + ptp, + max, + min, + amax, + amin, + prod, + cumprod, + cumulative_prod, + ndim, + size, + around, + round, + mean, + std, + var, +) + +from numpy._core._asarray import ( + require, +) + +from numpy._core._type_aliases import ( + sctypeDict, +) + +from numpy._core._ufunc_config import ( + seterr, + geterr, + setbufsize, + getbufsize, + seterrcall, + geterrcall, + errstate, +) + +from numpy._core.arrayprint import ( + set_printoptions, + get_printoptions, + array2string, + format_float_scientific, + format_float_positional, + array_repr, + array_str, + printoptions, +) + +from numpy._core.einsumfunc import ( + einsum, + einsum_path, +) +from numpy._core.getlimits import ( + finfo, + iinfo, +) + +from numpy._core.multiarray import ( + array, + empty_like, + empty, + zeros, + concatenate, + inner, + where, + lexsort, + can_cast, + min_scalar_type, + result_type, + dot, + vdot, + bincount, + copyto, + putmask, + packbits, + unpackbits, + shares_memory, + may_share_memory, + asarray, + asanyarray, + ascontiguousarray, + asfortranarray, + arange, + busday_count, + busday_offset, + datetime_as_string, + datetime_data, + frombuffer, + fromfile, + fromiter, + is_busday, + promote_types, + fromstring, + frompyfunc, + nested_iters, + flagsobj, +) + +from numpy._core.numeric import ( + zeros_like, + ones, + ones_like, + full, + full_like, + count_nonzero, + isfortran, + argwhere, + flatnonzero, + correlate, + convolve, + outer, + tensordot, + roll, + rollaxis, + moveaxis, + cross, + indices, + fromfunction, + isscalar, + binary_repr, + base_repr, + identity, + allclose, + isclose, + array_equal, + array_equiv, + astype, +) + +from numpy._core.numerictypes import ( + isdtype, + issubdtype, + ScalarType, + typecodes, +) + +from numpy._core.shape_base import ( + atleast_1d, + atleast_2d, + atleast_3d, + block, + hstack, + stack, + vstack, + unstack, +) + +from ._expired_attrs_2_0 import __expired_attributes__ as __expired_attributes__ +from ._globals import _CopyMode as _CopyMode +from ._globals import _NoValue as _NoValue, _NoValueType + +from numpy.lib import ( + scimath as emath, +) + +from numpy.lib._arraypad_impl import ( + pad, +) + +from numpy.lib._arraysetops_impl import ( + ediff1d, + intersect1d, + isin, + setdiff1d, + setxor1d, + union1d, + unique, + unique_all, + unique_counts, + unique_inverse, + unique_values, +) + +from numpy.lib._function_base_impl import ( # type: ignore[deprecated] + select, + piecewise, + trim_zeros, + copy, + iterable, + percentile, + diff, + gradient, + angle, + unwrap, + sort_complex, + flip, + rot90, + extract, + place, + asarray_chkfinite, + average, + digitize, + cov, + corrcoef, + median, + sinc, + hamming, + hanning, + bartlett, + blackman, + kaiser, + trapezoid, + i0, + meshgrid, + delete, + insert, + append, + interp, + quantile, + vectorize, +) + +from numpy.lib._histograms_impl import ( + histogram_bin_edges, + histogram, + histogramdd, +) + +from numpy.lib._index_tricks_impl import ( + ndenumerate, + ndindex, + ravel_multi_index, + unravel_index, + mgrid, + ogrid, + r_, + c_, + s_, + index_exp, + ix_, + fill_diagonal, + diag_indices, + diag_indices_from, +) + +from numpy.lib._nanfunctions_impl import ( + nansum, + nanmax, + nanmin, + nanargmax, + nanargmin, + nanmean, + nanmedian, + nanpercentile, + nanvar, + nanstd, + nanprod, + nancumsum, + nancumprod, + nanquantile, +) + +from numpy.lib._npyio_impl import ( + savetxt, + loadtxt, + genfromtxt, + load, + save, + savez, + savez_compressed, + fromregex, +) + +from numpy.lib._polynomial_impl import ( + poly, + roots, + polyint, + polyder, + polyadd, + polysub, + polymul, + polydiv, + polyval, + polyfit, +) + +from numpy.lib._shape_base_impl import ( # type: ignore[deprecated] + column_stack, + row_stack, + dstack, + array_split, + split, + hsplit, + vsplit, + dsplit, + apply_over_axes, + expand_dims, + apply_along_axis, + kron, + tile, + take_along_axis, + put_along_axis, +) + +from numpy.lib._stride_tricks_impl import ( + broadcast_to, + broadcast_arrays, + broadcast_shapes, +) + +from numpy.lib._twodim_base_impl import ( + diag, + diagflat, + eye, + fliplr, + flipud, + tri, + triu, + tril, + vander, + histogram2d, + mask_indices, + tril_indices, + tril_indices_from, + triu_indices, + triu_indices_from, +) + +from numpy.lib._type_check_impl import ( + mintypecode, + real, + imag, + iscomplex, + isreal, + iscomplexobj, + isrealobj, + nan_to_num, + real_if_close, + typename, + common_type, +) + +from numpy.lib._ufunclike_impl import ( + fix, + isposinf, + isneginf, +) + +from numpy.lib._utils_impl import ( + get_include, + info, + show_runtime, +) + +from numpy.matrixlib import ( + asmatrix, + bmat, + matrix, +) + +__all__ = [ # noqa: RUF022 + # __numpy_submodules__ + "char", "core", "ctypeslib", "dtypes", "exceptions", "f2py", "fft", "lib", "linalg", + "ma", "polynomial", "random", "rec", "strings", "test", "testing", "typing", + + # _core.__all__ + "abs", "acos", "acosh", "asin", "asinh", "atan", "atanh", "atan2", "bitwise_invert", + "bitwise_left_shift", "bitwise_right_shift", "concat", "pow", "permute_dims", + "memmap", "sctypeDict", "record", "recarray", + + # _core.numeric.__all__ + "newaxis", "ndarray", "flatiter", "nditer", "nested_iters", "ufunc", "arange", + "array", "asarray", "asanyarray", "ascontiguousarray", "asfortranarray", "zeros", + "count_nonzero", "empty", "broadcast", "dtype", "fromstring", "fromfile", + "frombuffer", "from_dlpack", "where", "argwhere", "copyto", "concatenate", + "lexsort", "astype", "can_cast", "promote_types", "min_scalar_type", "result_type", + "isfortran", "empty_like", "zeros_like", "ones_like", "correlate", "convolve", + "inner", "dot", "outer", "vdot", "roll", "rollaxis", "moveaxis", "cross", + "tensordot", "little_endian", "fromiter", "array_equal", "array_equiv", "indices", + "fromfunction", "isclose", "isscalar", "binary_repr", "base_repr", "ones", + "identity", "allclose", "putmask", "flatnonzero", "inf", "nan", "False_", "True_", + "bitwise_not", "full", "full_like", "matmul", "vecdot", "vecmat", + "shares_memory", "may_share_memory", + "all", "amax", "amin", "any", "argmax", "argmin", "argpartition", "argsort", + "around", "choose", "clip", "compress", "cumprod", "cumsum", "cumulative_prod", + "cumulative_sum", "diagonal", "mean", "max", "min", "matrix_transpose", "ndim", + "nonzero", "partition", "prod", "ptp", "put", "ravel", "repeat", "reshape", + "resize", "round", "searchsorted", "shape", "size", "sort", "squeeze", "std", "sum", + "swapaxes", "take", "trace", "transpose", "var", + "absolute", "add", "arccos", "arccosh", "arcsin", "arcsinh", "arctan", "arctan2", + "arctanh", "bitwise_and", "bitwise_or", "bitwise_xor", "cbrt", "ceil", "conj", + "conjugate", "copysign", "cos", "cosh", "bitwise_count", "deg2rad", "degrees", + "divide", "divmod", "e", "equal", "euler_gamma", "exp", "exp2", "expm1", "fabs", + "floor", "floor_divide", "float_power", "fmax", "fmin", "fmod", "frexp", + "frompyfunc", "gcd", "greater", "greater_equal", "heaviside", "hypot", "invert", + "isfinite", "isinf", "isnan", "isnat", "lcm", "ldexp", "left_shift", "less", + "less_equal", "log", "log10", "log1p", "log2", "logaddexp", "logaddexp2", + "logical_and", "logical_not", "logical_or", "logical_xor", "matvec", "maximum", "minimum", + "mod", "modf", "multiply", "negative", "nextafter", "not_equal", "pi", "positive", + "power", "rad2deg", "radians", "reciprocal", "remainder", "right_shift", "rint", + "sign", "signbit", "sin", "sinh", "spacing", "sqrt", "square", "subtract", "tan", + "tanh", "true_divide", "trunc", "ScalarType", "typecodes", "issubdtype", + "datetime_data", "datetime_as_string", "busday_offset", "busday_count", "is_busday", + "busdaycalendar", "isdtype", + "complexfloating", "character", "unsignedinteger", "inexact", "generic", "floating", + "integer", "signedinteger", "number", "flexible", "bool", "float16", "float32", + "float64", "longdouble", "complex64", "complex128", "clongdouble", + "bytes_", "str_", "void", "object_", "datetime64", "timedelta64", "int8", "byte", + "uint8", "ubyte", "int16", "short", "uint16", "ushort", "int32", "intc", "uint32", + "uintc", "int64", "long", "uint64", "ulong", "longlong", "ulonglong", "intp", + "uintp", "double", "cdouble", "single", "csingle", "half", "bool_", "int_", "uint", + "float96", "float128", "complex192", "complex256", + "array2string", "array_str", "array_repr", "set_printoptions", "get_printoptions", + "printoptions", "format_float_positional", "format_float_scientific", "require", + "seterr", "geterr", "setbufsize", "getbufsize", "seterrcall", "geterrcall", + "errstate", + # _core.function_base.__all__ + "logspace", "linspace", "geomspace", + # _core.getlimits.__all__ + "finfo", "iinfo", + # _core.shape_base.__all__ + "atleast_1d", "atleast_2d", "atleast_3d", "block", "hstack", "stack", "unstack", + "vstack", + # _core.einsumfunc.__all__ + "einsum", "einsum_path", + # matrixlib.__all__ + "matrix", "bmat", "asmatrix", + # lib._histograms_impl.__all__ + "histogram", "histogramdd", "histogram_bin_edges", + # lib._nanfunctions_impl.__all__ + "nansum", "nanmax", "nanmin", "nanargmax", "nanargmin", "nanmean", "nanmedian", + "nanpercentile", "nanvar", "nanstd", "nanprod", "nancumsum", "nancumprod", + "nanquantile", + # lib._function_base_impl.__all__ + "select", "piecewise", "trim_zeros", "copy", "iterable", "percentile", "diff", + "gradient", "angle", "unwrap", "sort_complex", "flip", "rot90", "extract", "place", + "vectorize", "asarray_chkfinite", "average", "bincount", "digitize", "cov", + "corrcoef", "median", "sinc", "hamming", "hanning", "bartlett", "blackman", + "kaiser", "trapezoid", "i0", "meshgrid", "delete", "insert", "append", + "interp", "quantile", + # lib._twodim_base_impl.__all__ + "diag", "diagflat", "eye", "fliplr", "flipud", "tri", "triu", "tril", "vander", + "histogram2d", "mask_indices", "tril_indices", "tril_indices_from", "triu_indices", + "triu_indices_from", + # lib._shape_base_impl.__all__ + "column_stack", "dstack", "array_split", "split", "hsplit", "vsplit", "dsplit", + "apply_over_axes", "expand_dims", "apply_along_axis", "kron", "tile", + "take_along_axis", "put_along_axis", "row_stack", + # lib._type_check_impl.__all__ + "iscomplexobj", "isrealobj", "imag", "iscomplex", "isreal", "nan_to_num", "real", + "real_if_close", "typename", "mintypecode", "common_type", + # lib._arraysetops_impl.__all__ + "ediff1d", "intersect1d", "isin", "setdiff1d", "setxor1d", "union1d", + "unique", "unique_all", "unique_counts", "unique_inverse", "unique_values", + # lib._ufunclike_impl.__all__ + "fix", "isneginf", "isposinf", + # lib._arraypad_impl.__all__ + "pad", + # lib._utils_impl.__all__ + "get_include", "info", "show_runtime", + # lib._stride_tricks_impl.__all__ + "broadcast_to", "broadcast_arrays", "broadcast_shapes", + # lib._polynomial_impl.__all__ + "poly", "roots", "polyint", "polyder", "polyadd", "polysub", "polymul", "polydiv", + "polyval", "poly1d", "polyfit", + # lib._npyio_impl.__all__ + "savetxt", "loadtxt", "genfromtxt", "load", "save", "savez", "savez_compressed", + "packbits", "unpackbits", "fromregex", + # lib._index_tricks_impl.__all__ + "ravel_multi_index", "unravel_index", "mgrid", "ogrid", "r_", "c_", "s_", + "index_exp", "ix_", "ndenumerate", "ndindex", "fill_diagonal", "diag_indices", + "diag_indices_from", + + # __init__.__all__ + "emath", "show_config", "__version__", "__array_namespace_info__", +] # fmt: skip + +### Constrained types (for internal use only) +# Only use these for functions; never as generic type parameter. + +_AnyStr = TypeVar("_AnyStr", LiteralString, str, bytes) +_AnyShapeT = TypeVar( + "_AnyShapeT", + tuple[()], # 0-d + tuple[int], # 1-d + tuple[int, int], # 2-d + tuple[int, int, int], # 3-d + tuple[int, int, int, int], # 4-d + tuple[int, int, int, int, int], # 5-d + tuple[int, int, int, int, int, int], # 6-d + tuple[int, int, int, int, int, int, int], # 7-d + tuple[int, int, int, int, int, int, int, int], # 8-d + tuple[int, ...], # N-d +) +_AnyTD64Item = TypeVar("_AnyTD64Item", dt.timedelta, int, None, dt.timedelta | int | None) +_AnyDT64Arg = TypeVar("_AnyDT64Arg", dt.datetime, dt.date, None) +_AnyDT64Item = TypeVar("_AnyDT64Item", dt.datetime, dt.date, int, None, dt.date, int | None) +_AnyDate = TypeVar("_AnyDate", dt.date, dt.datetime) +_AnyDateOrTime = TypeVar("_AnyDateOrTime", dt.date, dt.datetime, dt.timedelta) + +### Type parameters (for internal use only) + +_T = TypeVar("_T") +_T_co = TypeVar("_T_co", covariant=True) +_T_contra = TypeVar("_T_contra", contravariant=True) +_RealT_co = TypeVar("_RealT_co", covariant=True) +_ImagT_co = TypeVar("_ImagT_co", covariant=True) + +_DTypeT = TypeVar("_DTypeT", bound=dtype) +_DTypeT_co = TypeVar("_DTypeT_co", bound=dtype, default=dtype, covariant=True) +_FlexDTypeT = TypeVar("_FlexDTypeT", bound=dtype[flexible]) + +_ArrayT = TypeVar("_ArrayT", bound=ndarray) +_ArrayT_co = TypeVar("_ArrayT_co", bound=ndarray, default=ndarray, covariant=True) +_BoolArrayT = TypeVar("_BoolArrayT", bound=NDArray[np.bool]) +_IntegerArrayT = TypeVar("_IntegerArrayT", bound=NDArray[integer]) +_IntegralArrayT = TypeVar("_IntegralArrayT", bound=NDArray[np.bool | integer | object_]) +_FloatingArrayT = TypeVar("_FloatingArrayT", bound=NDArray[floating]) +_FloatingTimedeltaArrayT = TypeVar("_FloatingTimedeltaArrayT", bound=NDArray[floating | timedelta64]) +_ComplexFloatingArrayT = TypeVar("_ComplexFloatingArrayT", bound=NDArray[complexfloating]) +_InexactArrayT = TypeVar("_InexactArrayT", bound=NDArray[inexact]) +_InexactTimedeltaArrayT = TypeVar("_InexactTimedeltaArrayT", bound=NDArray[inexact | timedelta64]) +_NumberArrayT = TypeVar("_NumberArrayT", bound=NDArray[number]) +_NumberCharacterArrayT = TypeVar("_NumberCharacterArrayT", bound=ndarray[Any, dtype[number | character] | dtypes.StringDType]) +_TimedeltaArrayT = TypeVar("_TimedeltaArrayT", bound=NDArray[timedelta64]) +_TimeArrayT = TypeVar("_TimeArrayT", bound=NDArray[datetime64 | timedelta64]) +_ObjectArrayT = TypeVar("_ObjectArrayT", bound=NDArray[object_]) +_BytesArrayT = TypeVar("_BytesArrayT", bound=NDArray[bytes_]) +_StringArrayT = TypeVar("_StringArrayT", bound=ndarray[Any, dtype[str_] | dtypes.StringDType]) +_RealArrayT = TypeVar("_RealArrayT", bound=NDArray[floating | integer | timedelta64 | np.bool | object_]) +_NumericArrayT = TypeVar("_NumericArrayT", bound=NDArray[number | timedelta64 | object_]) + +_ShapeT = TypeVar("_ShapeT", bound=_Shape) +_Shape1T = TypeVar("_Shape1T", bound=tuple[int, *tuple[int, ...]]) +_ShapeT_co = TypeVar("_ShapeT_co", bound=_Shape, default=_AnyShape, covariant=True) +_2DShapeT_co = TypeVar("_2DShapeT_co", bound=_2D, default=_2D, covariant=True) +_1NShapeT = TypeVar("_1NShapeT", bound=tuple[L[1], *tuple[L[1], ...]]) # (1,) | (1, 1) | (1, 1, 1) | ... + +_ScalarT = TypeVar("_ScalarT", bound=generic) +_ScalarT_co = TypeVar("_ScalarT_co", bound=generic, default=Any, covariant=True) +_NumberT = TypeVar("_NumberT", bound=number) +_InexactT = TypeVar("_InexactT", bound=inexact) +_RealNumberT = TypeVar("_RealNumberT", bound=floating | integer) +_IntegerT = TypeVar("_IntegerT", bound=integer) +_NonObjectScalarT = TypeVar("_NonObjectScalarT", bound=np.bool | number | flexible | datetime64 | timedelta64) + +_NBit = TypeVar("_NBit", bound=NBitBase, default=Any) # pyright: ignore[reportDeprecated] +_NBit1 = TypeVar("_NBit1", bound=NBitBase, default=Any) # pyright: ignore[reportDeprecated] +_NBit2 = TypeVar("_NBit2", bound=NBitBase, default=_NBit1) # pyright: ignore[reportDeprecated] + +_ItemT_co = TypeVar("_ItemT_co", default=Any, covariant=True) +_BoolItemT = TypeVar("_BoolItemT", bound=builtins.bool) +_BoolItemT_co = TypeVar("_BoolItemT_co", bound=builtins.bool, default=builtins.bool, covariant=True) +_NumberItemT_co = TypeVar("_NumberItemT_co", bound=complex, default=int | float | complex, covariant=True) +_InexactItemT_co = TypeVar("_InexactItemT_co", bound=complex, default=float | complex, covariant=True) +_FlexibleItemT_co = TypeVar( + "_FlexibleItemT_co", + bound=_CharLike_co | tuple[Any, ...], + default=_CharLike_co | tuple[Any, ...], + covariant=True, +) +_CharacterItemT_co = TypeVar("_CharacterItemT_co", bound=_CharLike_co, default=_CharLike_co, covariant=True) +_TD64ItemT_co = TypeVar("_TD64ItemT_co", bound=dt.timedelta | int | None, default=dt.timedelta | int | None, covariant=True) +_DT64ItemT_co = TypeVar("_DT64ItemT_co", bound=dt.date | int | None, default=dt.date | int | None, covariant=True) +_TD64UnitT = TypeVar("_TD64UnitT", bound=_TD64Unit, default=_TD64Unit) +_BoolOrIntArrayT = TypeVar("_BoolOrIntArrayT", bound=NDArray[integer | np.bool]) + +### Type Aliases (for internal use only) + +_Falsy: TypeAlias = L[False, 0] | np.bool[L[False]] +_Truthy: TypeAlias = L[True, 1] | np.bool[L[True]] + +_1D: TypeAlias = tuple[int] +_2D: TypeAlias = tuple[int, int] +_2Tuple: TypeAlias = tuple[_T, _T] + +_ArrayUInt_co: TypeAlias = NDArray[unsignedinteger | np.bool] +_ArrayInt_co: TypeAlias = NDArray[integer | np.bool] +_ArrayFloat64_co: TypeAlias = NDArray[floating[_64Bit] | float32 | float16 | integer | np.bool] +_ArrayFloat_co: TypeAlias = NDArray[floating | integer | np.bool] +_ArrayComplex128_co: TypeAlias = NDArray[number[_64Bit] | number[_32Bit] | float16 | integer | np.bool] +_ArrayComplex_co: TypeAlias = NDArray[inexact | integer | np.bool] +_ArrayNumber_co: TypeAlias = NDArray[number | np.bool] +_ArrayTD64_co: TypeAlias = NDArray[timedelta64 | integer | np.bool] + +_Float64_co: TypeAlias = float | floating[_64Bit] | float32 | float16 | integer | np.bool +_Complex64_co: TypeAlias = number[_32Bit] | number[_16Bit] | number[_8Bit] | builtins.bool | np.bool +_Complex128_co: TypeAlias = complex | number[_64Bit] | _Complex64_co + +_ToIndex: TypeAlias = SupportsIndex | slice | EllipsisType | _ArrayLikeInt_co | None +_ToIndices: TypeAlias = _ToIndex | tuple[_ToIndex, ...] + +_UnsignedIntegerCType: TypeAlias = type[ + ct.c_uint8 | ct.c_uint16 | ct.c_uint32 | ct.c_uint64 + | ct.c_ushort | ct.c_uint | ct.c_ulong | ct.c_ulonglong + | ct.c_size_t | ct.c_void_p +] # fmt: skip +_SignedIntegerCType: TypeAlias = type[ + ct.c_int8 | ct.c_int16 | ct.c_int32 | ct.c_int64 + | ct.c_short | ct.c_int | ct.c_long | ct.c_longlong + | ct.c_ssize_t +] # fmt: skip +_FloatingCType: TypeAlias = type[ct.c_float | ct.c_double | ct.c_longdouble] +_IntegerCType: TypeAlias = _UnsignedIntegerCType | _SignedIntegerCType + +# some commonly used builtin types that are known to result in a +# `dtype[object_]`, when their *type* is passed to the `dtype` constructor +# NOTE: `builtins.object` should not be included here +_BuiltinObjectLike: TypeAlias = ( + slice | Decimal | Fraction | UUID + | dt.date | dt.time | dt.timedelta | dt.tzinfo + | tuple[Any, ...] | list[Any] | set[Any] | frozenset[Any] | dict[Any, Any] +) # fmt: skip + +# Introduce an alias for `dtype` to avoid naming conflicts. +_dtype: TypeAlias = dtype[_ScalarT] + +_ByteOrderChar: TypeAlias = L["<", ">", "=", "|"] +# can be anything, is case-insensitive, and only the first character matters +_ByteOrder: TypeAlias = L[ + "S", # swap the current order (default) + "<", "L", "little", # little-endian + ">", "B", "big", # big endian + "=", "N", "native", # native order + "|", "I", # ignore +] # fmt: skip +_DTypeKind: TypeAlias = L[ + "b", # boolean + "i", # signed integer + "u", # unsigned integer + "f", # floating-point + "c", # complex floating-point + "m", # timedelta64 + "M", # datetime64 + "O", # python object + "S", # byte-string (fixed-width) + "U", # unicode-string (fixed-width) + "V", # void + "T", # unicode-string (variable-width) +] +_DTypeChar: TypeAlias = L[ + "?", # bool + "b", # byte + "B", # ubyte + "h", # short + "H", # ushort + "i", # intc + "I", # uintc + "l", # long + "L", # ulong + "q", # longlong + "Q", # ulonglong + "e", # half + "f", # single + "d", # double + "g", # longdouble + "F", # csingle + "D", # cdouble + "G", # clongdouble + "O", # object + "S", # bytes_ (S0) + "a", # bytes_ (deprecated) + "U", # str_ + "V", # void + "M", # datetime64 + "m", # timedelta64 + "c", # bytes_ (S1) + "T", # StringDType +] +_DTypeNum: TypeAlias = L[ + 0, # bool + 1, # byte + 2, # ubyte + 3, # short + 4, # ushort + 5, # intc + 6, # uintc + 7, # long + 8, # ulong + 9, # longlong + 10, # ulonglong + 23, # half + 11, # single + 12, # double + 13, # longdouble + 14, # csingle + 15, # cdouble + 16, # clongdouble + 17, # object + 18, # bytes_ + 19, # str_ + 20, # void + 21, # datetime64 + 22, # timedelta64 + 25, # no type + 256, # user-defined + 2056, # StringDType +] +_DTypeBuiltinKind: TypeAlias = L[0, 1, 2] + +_ArrayAPIVersion: TypeAlias = L["2021.12", "2022.12", "2023.12", "2024.12"] + +_CastingKind: TypeAlias = L["no", "equiv", "safe", "same_kind", "same_value", "unsafe"] + +_OrderKACF: TypeAlias = L["K", "A", "C", "F"] | None +_OrderACF: TypeAlias = L["A", "C", "F"] | None +_OrderCF: TypeAlias = L["C", "F"] | None # noqa: PYI047 + +_ModeKind: TypeAlias = L["raise", "wrap", "clip"] +_PartitionKind: TypeAlias = L["introselect"] +# in practice, only the first case-insensitive character is considered (so e.g. +# "QuantumSort3000" will be interpreted as quicksort). +_SortKind: TypeAlias = L[ + "Q", "quick", "quicksort", + "M", "merge", "mergesort", + "H", "heap", "heapsort", + "S", "stable", "stablesort", +] +_SortSide: TypeAlias = L["left", "right"] + +_ConvertibleToInt: TypeAlias = SupportsInt | SupportsIndex | _CharLike_co +_ConvertibleToFloat: TypeAlias = SupportsFloat | SupportsIndex | _CharLike_co +_ConvertibleToComplex: TypeAlias = SupportsComplex | SupportsFloat | SupportsIndex | _CharLike_co +_ConvertibleToTD64: TypeAlias = dt.timedelta | int | _CharLike_co | character | number | timedelta64 | np.bool | None +_ConvertibleToDT64: TypeAlias = dt.date | int | _CharLike_co | character | number | datetime64 | np.bool | None + +_NDIterFlagsKind: TypeAlias = L[ + "buffered", + "c_index", + "copy_if_overlap", + "common_dtype", + "delay_bufalloc", + "external_loop", + "f_index", + "grow_inner", "growinner", + "multi_index", + "ranged", + "refs_ok", + "reduce_ok", + "zerosize_ok", +] +_NDIterFlagsOp: TypeAlias = L[ + "aligned", + "allocate", + "arraymask", + "copy", + "config", + "nbo", + "no_subtype", + "no_broadcast", + "overlap_assume_elementwise", + "readonly", + "readwrite", + "updateifcopy", + "virtual", + "writeonly", + "writemasked", +] + +_MemMapModeKind: TypeAlias = L[ + "readonly", "r", + "copyonwrite", "c", + "readwrite", "r+", + "write", "w+", +] + +_DT64Date: TypeAlias = _HasDateAttributes | L["TODAY", "today", b"TODAY", b"today"] +_DT64Now: TypeAlias = L["NOW", "now", b"NOW", b"now"] +_NaTValue: TypeAlias = L["NAT", "NaT", "nat", b"NAT", b"NaT", b"nat"] + +_MonthUnit: TypeAlias = L["Y", "M", b"Y", b"M"] +_DayUnit: TypeAlias = L["W", "D", b"W", b"D"] +_DateUnit: TypeAlias = L[_MonthUnit, _DayUnit] +_NativeTimeUnit: TypeAlias = L["h", "m", "s", "ms", "us", "μs", b"h", b"m", b"s", b"ms", b"us"] +_IntTimeUnit: TypeAlias = L["ns", "ps", "fs", "as", b"ns", b"ps", b"fs", b"as"] +_TimeUnit: TypeAlias = L[_NativeTimeUnit, _IntTimeUnit] +_NativeTD64Unit: TypeAlias = L[_DayUnit, _NativeTimeUnit] +_IntTD64Unit: TypeAlias = L[_MonthUnit, _IntTimeUnit] +_TD64Unit: TypeAlias = L[_DateUnit, _TimeUnit] +_TimeUnitSpec: TypeAlias = _TD64UnitT | tuple[_TD64UnitT, SupportsIndex] + +### TypedDict's (for internal use only) + +@type_check_only +class _FormerAttrsDict(TypedDict): + object: LiteralString + float: LiteralString + complex: LiteralString + str: LiteralString + int: LiteralString + +### Protocols (for internal use only) + +@final +@type_check_only +class _SupportsLT(Protocol): + def __lt__(self, other: Any, /) -> Any: ... + +@final +@type_check_only +class _SupportsLE(Protocol): + def __le__(self, other: Any, /) -> Any: ... + +@final +@type_check_only +class _SupportsGT(Protocol): + def __gt__(self, other: Any, /) -> Any: ... + +@final +@type_check_only +class _SupportsGE(Protocol): + def __ge__(self, other: Any, /) -> Any: ... + +@type_check_only +class _SupportsFileMethods(SupportsFlush, Protocol): + # Protocol for representing file-like-objects accepted by `ndarray.tofile` and `fromfile` + def fileno(self) -> SupportsIndex: ... + def tell(self) -> SupportsIndex: ... + def seek(self, offset: int, whence: int, /) -> object: ... + +@type_check_only +class _SupportsFileMethodsRW(SupportsWrite[bytes], _SupportsFileMethods, Protocol): ... + +@type_check_only +class _SupportsDLPack(Protocol[_T_contra]): + def __dlpack__(self, /, *, stream: _T_contra | None = None) -> CapsuleType: ... + +@type_check_only +class _HasDType(Protocol[_T_co]): + @property + def dtype(self, /) -> _T_co: ... + +@type_check_only +class _HasRealAndImag(Protocol[_RealT_co, _ImagT_co]): + @property + def real(self, /) -> _RealT_co: ... + @property + def imag(self, /) -> _ImagT_co: ... + +@type_check_only +class _HasTypeWithRealAndImag(Protocol[_RealT_co, _ImagT_co]): + @property + def type(self, /) -> type[_HasRealAndImag[_RealT_co, _ImagT_co]]: ... + +@type_check_only +class _HasDTypeWithRealAndImag(Protocol[_RealT_co, _ImagT_co]): + @property + def dtype(self, /) -> _HasTypeWithRealAndImag[_RealT_co, _ImagT_co]: ... + +@type_check_only +class _HasDateAttributes(Protocol): + # The `datetime64` constructors requires an object with the three attributes below, + # and thus supports datetime duck typing + @property + def day(self) -> int: ... + @property + def month(self) -> int: ... + @property + def year(self) -> int: ... + +### Mixins (for internal use only) + +@type_check_only +class _RealMixin: + @property + def real(self) -> Self: ... + @property + def imag(self) -> Self: ... + +@type_check_only +class _RoundMixin: + @overload + def __round__(self, /, ndigits: None = None) -> int: ... + @overload + def __round__(self, /, ndigits: SupportsIndex) -> Self: ... + +@type_check_only +class _IntegralMixin(_RealMixin): + @property + def numerator(self) -> Self: ... + @property + def denominator(self) -> L[1]: ... + + def is_integer(self, /) -> L[True]: ... + +### Public API + +__version__: Final[LiteralString] = ... + +e: Final[float] = ... +euler_gamma: Final[float] = ... +pi: Final[float] = ... +inf: Final[float] = ... +nan: Final[float] = ... +little_endian: Final[builtins.bool] = ... +False_: Final[np.bool[L[False]]] = ... +True_: Final[np.bool[L[True]]] = ... +newaxis: Final[None] = None + +# not in __all__ +__NUMPY_SETUP__: Final[L[False]] = False +__numpy_submodules__: Final[set[LiteralString]] = ... +__former_attrs__: Final[_FormerAttrsDict] = ... +__future_scalars__: Final[set[L["bytes", "str", "object"]]] = ... +__array_api_version__: Final[L["2024.12"]] = "2024.12" +test: Final[PytestTester] = ... + +@type_check_only +class _DTypeMeta(type): + @property + def type(cls, /) -> type[generic] | None: ... + @property + def _abstract(cls, /) -> bool: ... + @property + def _is_numeric(cls, /) -> bool: ... + @property + def _parametric(cls, /) -> bool: ... + @property + def _legacy(cls, /) -> bool: ... + +@final +class dtype(Generic[_ScalarT_co], metaclass=_DTypeMeta): + names: tuple[builtins.str, ...] | None + def __hash__(self) -> int: ... + + # `None` results in the default dtype + @overload + def __new__( + cls, + dtype: type[float64 | ct.c_double] | _Float64Codes | _DoubleCodes | None, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ... + ) -> dtype[float64]: ... + + # Overload for `dtype` instances, scalar types, and instances that have a + # `dtype: dtype[_ScalarT]` attribute + @overload + def __new__( + cls, + dtype: _DTypeLike[_ScalarT], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[_ScalarT]: ... + + # Builtin types + # + # NOTE: Typecheckers act as if `bool <: int <: float <: complex <: object`, + # even though at runtime `int`, `float`, and `complex` aren't subtypes.. + # This makes it impossible to express e.g. "a float that isn't an int", + # since type checkers treat `_: float` like `_: float | int`. + # + # For more details, see: + # - https://github.com/numpy/numpy/issues/27032#issuecomment-2278958251 + # - https://typing.readthedocs.io/en/latest/spec/special-types.html#special-cases-for-float-and-complex + @overload + def __new__( + cls, + dtype: type[builtins.bool | np.bool | ct.c_bool] | _BoolCodes, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[str, Any] = ..., + ) -> dtype[np.bool]: ... + @overload + def __new__( + cls, + dtype: type[int], # also accepts `type[builtins.bool]` + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[str, Any] = ..., + ) -> dtype[int_ | np.bool]: ... + @overload + def __new__( + cls, + dtype: type[float], # also accepts `type[int | bool]` + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[str, Any] = ..., + ) -> dtype[float64 | int_ | np.bool]: ... + @overload + def __new__( + cls, + dtype: type[complex], # also accepts `type[float | int | bool]` + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[str, Any] = ..., + ) -> dtype[complex128 | float64 | int_ | np.bool]: ... + @overload + def __new__( + cls, + dtype: type[bytes | ct.c_char] | _BytesCodes, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[str, Any] = ..., + ) -> dtype[bytes_]: ... + @overload + def __new__( + cls, + dtype: type[str] | _StrCodes, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[str, Any] = ..., + ) -> dtype[str_]: ... + # NOTE: These `memoryview` overloads assume PEP 688, which requires mypy to + # be run with the (undocumented) `--disable-memoryview-promotion` flag, + # This will be the default in a future mypy release, see: + # https://github.com/python/mypy/issues/15313 + # Pyright / Pylance requires setting `disableBytesTypePromotions=true`, + # which is the default in strict mode + @overload + def __new__( + cls, + dtype: type[void | memoryview] | _VoidDTypeLike | _VoidCodes, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[str, Any] = ..., + ) -> dtype[void]: ... + # NOTE: `_: type[object]` would also accept e.g. `type[object | complex]`, + # and is therefore not included here + @overload + def __new__( + cls, + dtype: type[object_ | _BuiltinObjectLike | ct.py_object[Any]] | _ObjectCodes, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[str, Any] = ..., + ) -> dtype[object_]: ... + + # `unsignedinteger` string-based representations and ctypes + @overload + def __new__( + cls, + dtype: _UInt8Codes | _UByteCodes | type[ct.c_uint8 | ct.c_ubyte], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[uint8]: ... + @overload + def __new__( + cls, + dtype: _UInt16Codes | _UShortCodes | type[ct.c_uint16 | ct.c_ushort], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[uint16]: ... + @overload + def __new__( + cls, + dtype: _UInt32Codes | _UIntCCodes | type[ct.c_uint32 | ct.c_uint], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[uint32]: ... + @overload + def __new__( + cls, + dtype: _UInt64Codes | _ULongLongCodes | type[ct.c_uint64 | ct.c_ulonglong], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[uint64]: ... + @overload + def __new__( + cls, + dtype: _UIntPCodes | type[ct.c_void_p | ct.c_size_t], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[uintp]: ... + @overload + def __new__( + cls, + dtype: _ULongCodes | type[ct.c_ulong], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[ulong]: ... + + # `signedinteger` string-based representations and ctypes + @overload + def __new__( + cls, + dtype: _Int8Codes | _ByteCodes | type[ct.c_int8 | ct.c_byte], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[int8]: ... + @overload + def __new__( + cls, + dtype: _Int16Codes | _ShortCodes | type[ct.c_int16 | ct.c_short], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[int16]: ... + @overload + def __new__( + cls, + dtype: _Int32Codes | _IntCCodes | type[ct.c_int32 | ct.c_int], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[int32]: ... + @overload + def __new__( + cls, + dtype: _Int64Codes | _LongLongCodes | type[ct.c_int64 | ct.c_longlong], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[int64]: ... + @overload + def __new__( + cls, + dtype: _IntPCodes | type[intp | ct.c_ssize_t], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[intp]: ... + @overload + def __new__( + cls, + dtype: _LongCodes | type[ct.c_long], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[long]: ... + + # `floating` string-based representations and ctypes + @overload + def __new__( + cls, + dtype: _Float16Codes | _HalfCodes, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[float16]: ... + @overload + def __new__( + cls, + dtype: _Float32Codes | _SingleCodes, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[float32]: ... + # float64 codes are covered by overload 1 + @overload + def __new__( + cls, + dtype: _LongDoubleCodes | type[ct.c_longdouble], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[longdouble]: ... + + # `complexfloating` string-based representations + @overload + def __new__( + cls, + dtype: _Complex64Codes | _CSingleCodes, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[complex64]: ... + @overload + def __new__( + cls, + dtype: _Complex128Codes | _CDoubleCodes, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[complex128]: ... + @overload + def __new__( + cls, + dtype: _CLongDoubleCodes, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[clongdouble]: ... + + # Miscellaneous string-based representations and ctypes + @overload + def __new__( + cls, + dtype: _TD64Codes, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[timedelta64]: ... + @overload + def __new__( + cls, + dtype: _DT64Codes, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[datetime64]: ... + + # `StringDType` requires special treatment because it has no scalar type + @overload + def __new__( + cls, + dtype: dtypes.StringDType | _StringCodes, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtypes.StringDType: ... + + # Combined char-codes and ctypes, analogous to the scalar-type hierarchy + @overload + def __new__( + cls, + dtype: _UnsignedIntegerCodes | _UnsignedIntegerCType, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[unsignedinteger]: ... + @overload + def __new__( + cls, + dtype: _SignedIntegerCodes | _SignedIntegerCType, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[signedinteger]: ... + @overload + def __new__( + cls, + dtype: _IntegerCodes | _IntegerCType, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[integer]: ... + @overload + def __new__( + cls, + dtype: _FloatingCodes | _FloatingCType, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[floating]: ... + @overload + def __new__( + cls, + dtype: _ComplexFloatingCodes, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[complexfloating]: ... + @overload + def __new__( + cls, + dtype: _InexactCodes | _FloatingCType, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[inexact]: ... + @overload + def __new__( + cls, + dtype: _CharacterCodes | type[bytes | builtins.str | ct.c_char], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[str, Any] = ..., + ) -> dtype[character]: ... + + # Handle strings that can't be expressed as literals; i.e. "S1", "S2", ... + @overload + def __new__( + cls, + dtype: builtins.str, + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype: ... + + # Catch-all overload for object-likes + # NOTE: `object_ | Any` is NOT equivalent to `Any`. It is specified to behave + # like a "sum type" (a.k.a. variant type, discriminated union, or tagged union). + # So the union of a type and `Any` is not the same "union type" that all other + # unions are (by definition). + # https://typing.python.org/en/latest/spec/concepts.html#union-types + @overload + def __new__( + cls, + dtype: type[object], + align: builtins.bool = False, + copy: builtins.bool = False, + *, + metadata: dict[builtins.str, Any] = ..., + ) -> dtype[object_ | Any]: ... + + def __class_getitem__(cls, item: Any, /) -> GenericAlias: ... + + @overload + def __getitem__(self: dtype[void], key: list[builtins.str], /) -> dtype[void]: ... + @overload + def __getitem__(self: dtype[void], key: builtins.str | SupportsIndex, /) -> dtype: ... + + # NOTE: In the future 1-based multiplications will also yield `flexible` dtypes + @overload + def __mul__(self: _DTypeT, value: L[1], /) -> _DTypeT: ... + @overload + def __mul__(self: _FlexDTypeT, value: SupportsIndex, /) -> _FlexDTypeT: ... + @overload + def __mul__(self, value: SupportsIndex, /) -> dtype[void]: ... + + # NOTE: `__rmul__` seems to be broken when used in combination with + # literals as of mypy 0.902. Set the return-type to `dtype` for + # now for non-flexible dtypes. + @overload + def __rmul__(self: _FlexDTypeT, value: SupportsIndex, /) -> _FlexDTypeT: ... + @overload + def __rmul__(self, value: SupportsIndex, /) -> dtype: ... + + def __gt__(self, other: DTypeLike | None, /) -> builtins.bool: ... + def __ge__(self, other: DTypeLike | None, /) -> builtins.bool: ... + def __lt__(self, other: DTypeLike | None, /) -> builtins.bool: ... + def __le__(self, other: DTypeLike | None, /) -> builtins.bool: ... + + # Explicitly defined `__eq__` and `__ne__` to get around mypy's + # `strict_equality` option; even though their signatures are + # identical to their `object`-based counterpart + def __eq__(self, other: Any, /) -> builtins.bool: ... + def __ne__(self, other: Any, /) -> builtins.bool: ... + + @property + def alignment(self) -> int: ... + @property + def base(self) -> dtype: ... + @property + def byteorder(self) -> _ByteOrderChar: ... + @property + def char(self) -> _DTypeChar: ... + @property + def descr(self) -> list[tuple[LiteralString, LiteralString] | tuple[LiteralString, LiteralString, _Shape]]: ... + @property + def fields(self,) -> MappingProxyType[LiteralString, tuple[dtype, int] | tuple[dtype, int, Any]] | None: ... + @property + def flags(self) -> int: ... + @property + def hasobject(self) -> builtins.bool: ... + @property + def isbuiltin(self) -> _DTypeBuiltinKind: ... + @property + def isnative(self) -> builtins.bool: ... + @property + def isalignedstruct(self) -> builtins.bool: ... + @property + def itemsize(self) -> int: ... + @property + def kind(self) -> _DTypeKind: ... + @property + def metadata(self) -> MappingProxyType[builtins.str, Any] | None: ... + @property + def name(self) -> LiteralString: ... + @property + def num(self) -> _DTypeNum: ... + @property + def shape(self) -> _AnyShape: ... + @property + def ndim(self) -> int: ... + @property + def subdtype(self) -> tuple[dtype, _AnyShape] | None: ... + def newbyteorder(self, new_order: _ByteOrder = ..., /) -> Self: ... + @property + def str(self) -> LiteralString: ... + @property + def type(self) -> type[_ScalarT_co]: ... + +@final +class flatiter(Generic[_ArrayT_co]): + __hash__: ClassVar[None] = None # type: ignore[assignment] # pyright: ignore[reportIncompatibleMethodOverride] + + @property + def base(self, /) -> _ArrayT_co: ... + @property + def coords(self: flatiter[ndarray[_ShapeT]], /) -> _ShapeT: ... + @property + def index(self, /) -> int: ... + + # iteration + def __len__(self, /) -> int: ... + def __iter__(self, /) -> Self: ... + def __next__(self: flatiter[NDArray[_ScalarT]], /) -> _ScalarT: ... + + # indexing + @overload # nd: _[()] + def __getitem__(self, key: tuple[()], /) -> _ArrayT_co: ... + @overload # 0d; _[] + def __getitem__(self: flatiter[NDArray[_ScalarT]], key: int | integer, /) -> _ScalarT: ... + @overload # 1d; _[[*]], _[:], _[...] + def __getitem__( + self: flatiter[ndarray[Any, _DTypeT]], + key: list[int] | slice | EllipsisType | flatiter[NDArray[integer]], + /, + ) -> ndarray[tuple[int], _DTypeT]: ... + @overload # 2d; _[[*[*]]] + def __getitem__( + self: flatiter[ndarray[Any, _DTypeT]], + key: list[list[int]], + /, + ) -> ndarray[tuple[int, int], _DTypeT]: ... + @overload # ?d + def __getitem__( + self: flatiter[ndarray[Any, _DTypeT]], + key: NDArray[integer] | _NestedSequence[int], + /, + ) -> ndarray[_AnyShape, _DTypeT]: ... + + # NOTE: `__setitem__` operates via `unsafe` casting rules, and can thus accept any + # type accepted by the relevant underlying `np.generic` constructor, which isn't + # known statically. So we cannot meaningfully annotate the value parameter. + def __setitem__(self, key: slice | EllipsisType | _ArrayLikeInt, val: object, /) -> None: ... + + # NOTE: `dtype` and `copy` are no-ops at runtime, so we don't support them here to + # avoid confusion + def __array__( + self: flatiter[ndarray[Any, _DTypeT]], + dtype: None = None, + /, + *, + copy: None = None, + ) -> ndarray[tuple[int], _DTypeT]: ... + + # This returns a flat copy of the underlying array, not of the iterator itself + def copy(self: flatiter[ndarray[Any, _DTypeT]], /) -> ndarray[tuple[int], _DTypeT]: ... + +@type_check_only +class _ArrayOrScalarCommon: + @property + def real(self, /) -> Any: ... + @property + def imag(self, /) -> Any: ... + @property + def T(self) -> Self: ... + @property + def mT(self) -> Self: ... + @property + def data(self) -> memoryview: ... + @property + def flags(self) -> flagsobj: ... + @property + def itemsize(self) -> int: ... + @property + def nbytes(self) -> int: ... + @property + def device(self) -> L["cpu"]: ... + + def __bool__(self, /) -> builtins.bool: ... + def __int__(self, /) -> int: ... + def __float__(self, /) -> float: ... + def __copy__(self) -> Self: ... + def __deepcopy__(self, memo: dict[int, Any] | None, /) -> Self: ... + + # TODO: How to deal with the non-commutative nature of `==` and `!=`? + # xref numpy/numpy#17368 + def __eq__(self, other: Any, /) -> Any: ... + def __ne__(self, other: Any, /) -> Any: ... + + def copy(self, order: _OrderKACF = ...) -> Self: ... + def dump(self, file: StrOrBytesPath | SupportsWrite[bytes]) -> None: ... + def dumps(self) -> bytes: ... + def tobytes(self, order: _OrderKACF = ...) -> bytes: ... + def tofile(self, fid: StrOrBytesPath | _SupportsFileMethods, /, sep: str = "", format: str = "%s") -> None: ... + # generics and 0d arrays return builtin scalars + def tolist(self) -> Any: ... + def to_device(self, device: L["cpu"], /, *, stream: int | Any | None = ...) -> Self: ... + + # NOTE: for `generic`, these two methods don't do anything + def fill(self, /, value: Incomplete) -> None: ... + def put(self, indices: _ArrayLikeInt_co, values: ArrayLike, /, mode: _ModeKind = "raise") -> None: ... + + # NOTE: even on `generic` this seems to work + def setflags( + self, + /, + *, + write: builtins.bool | None = None, + align: builtins.bool | None = None, + uic: builtins.bool | None = None, + ) -> None: ... + + @property + def __array_interface__(self) -> dict[str, Any]: ... + @property + def __array_priority__(self) -> float: ... + @property + def __array_struct__(self) -> CapsuleType: ... # builtins.PyCapsule + def __array_namespace__(self, /, *, api_version: _ArrayAPIVersion | None = None) -> ModuleType: ... + def __setstate__(self, state: tuple[ + SupportsIndex, # version + _ShapeLike, # Shape + _DTypeT_co, # DType + np.bool, # F-continuous + bytes | list[Any], # Data + ], /) -> None: ... + + def conj(self) -> Self: ... + def conjugate(self) -> Self: ... + + def argsort( + self, + axis: SupportsIndex | None = ..., + kind: _SortKind | None = ..., + order: str | Sequence[str] | None = ..., + *, + stable: builtins.bool | None = ..., + ) -> NDArray[intp]: ... + + @overload # axis=None (default), out=None (default), keepdims=False (default) + def argmax(self, /, axis: None = None, out: None = None, *, keepdims: L[False] = False) -> intp: ... + @overload # axis=index, out=None (default) + def argmax(self, /, axis: SupportsIndex, out: None = None, *, keepdims: builtins.bool = False) -> Any: ... + @overload # axis=index, out=ndarray + def argmax(self, /, axis: SupportsIndex | None, out: _BoolOrIntArrayT, *, keepdims: builtins.bool = False) -> _BoolOrIntArrayT: ... + @overload + def argmax(self, /, axis: SupportsIndex | None = None, *, out: _BoolOrIntArrayT, keepdims: builtins.bool = False) -> _BoolOrIntArrayT: ... + + @overload # axis=None (default), out=None (default), keepdims=False (default) + def argmin(self, /, axis: None = None, out: None = None, *, keepdims: L[False] = False) -> intp: ... + @overload # axis=index, out=None (default) + def argmin(self, /, axis: SupportsIndex, out: None = None, *, keepdims: builtins.bool = False) -> Any: ... + @overload # axis=index, out=ndarray + def argmin(self, /, axis: SupportsIndex | None, out: _BoolOrIntArrayT, *, keepdims: builtins.bool = False) -> _BoolOrIntArrayT: ... + @overload + def argmin(self, /, axis: SupportsIndex | None = None, *, out: _BoolOrIntArrayT, keepdims: builtins.bool = False) -> _BoolOrIntArrayT: ... + + # Keep in sync with `MaskedArray.round` + @overload # out=None (default) + def round(self, /, decimals: SupportsIndex = 0, out: None = None) -> Self: ... + @overload # out=ndarray + def round(self, /, decimals: SupportsIndex, out: _ArrayT) -> _ArrayT: ... + @overload + def round(self, /, decimals: SupportsIndex = 0, *, out: _ArrayT) -> _ArrayT: ... + + @overload # out=None (default) + def choose(self, /, choices: ArrayLike, out: None = None, mode: _ModeKind = "raise") -> NDArray[Any]: ... + @overload # out=ndarray + def choose(self, /, choices: ArrayLike, out: _ArrayT, mode: _ModeKind = "raise") -> _ArrayT: ... + + # TODO: Annotate kwargs with an unpacked `TypedDict` + @overload # out: None (default) + def clip(self, /, min: ArrayLike, max: ArrayLike | None = None, out: None = None, **kwargs: Any) -> NDArray[Any]: ... + @overload + def clip(self, /, min: None, max: ArrayLike, out: None = None, **kwargs: Any) -> NDArray[Any]: ... + @overload + def clip(self, /, min: None = None, *, max: ArrayLike, out: None = None, **kwargs: Any) -> NDArray[Any]: ... + @overload # out: ndarray + def clip(self, /, min: ArrayLike, max: ArrayLike | None, out: _ArrayT, **kwargs: Any) -> _ArrayT: ... + @overload + def clip(self, /, min: ArrayLike, max: ArrayLike | None = None, *, out: _ArrayT, **kwargs: Any) -> _ArrayT: ... + @overload + def clip(self, /, min: None, max: ArrayLike, out: _ArrayT, **kwargs: Any) -> _ArrayT: ... + @overload + def clip(self, /, min: None = None, *, max: ArrayLike, out: _ArrayT, **kwargs: Any) -> _ArrayT: ... + + @overload + def compress(self, /, condition: _ArrayLikeInt_co, axis: SupportsIndex | None = None, out: None = None) -> NDArray[Any]: ... + @overload + def compress(self, /, condition: _ArrayLikeInt_co, axis: SupportsIndex | None, out: _ArrayT) -> _ArrayT: ... + @overload + def compress(self, /, condition: _ArrayLikeInt_co, axis: SupportsIndex | None = None, *, out: _ArrayT) -> _ArrayT: ... + + # Keep in sync with `MaskedArray.cumprod` + @overload # out: None (default) + def cumprod(self, /, axis: SupportsIndex | None = None, dtype: DTypeLike | None = None, out: None = None) -> NDArray[Any]: ... + @overload # out: ndarray + def cumprod(self, /, axis: SupportsIndex | None, dtype: DTypeLike | None, out: _ArrayT) -> _ArrayT: ... + @overload + def cumprod(self, /, axis: SupportsIndex | None = None, dtype: DTypeLike | None = None, *, out: _ArrayT) -> _ArrayT: ... + + # Keep in sync with `MaskedArray.cumsum` + @overload # out: None (default) + def cumsum(self, /, axis: SupportsIndex | None = None, dtype: DTypeLike | None = None, out: None = None) -> NDArray[Any]: ... + @overload # out: ndarray + def cumsum(self, /, axis: SupportsIndex | None, dtype: DTypeLike | None, out: _ArrayT) -> _ArrayT: ... + @overload + def cumsum(self, /, axis: SupportsIndex | None = None, dtype: DTypeLike | None = None, *, out: _ArrayT) -> _ArrayT: ... + + @overload + def max( + self, + /, + axis: _ShapeLike | None = None, + out: None = None, + *, + keepdims: builtins.bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> Any: ... + @overload + def max( + self, + /, + axis: _ShapeLike | None, + out: _ArrayT, + *, + keepdims: builtins.bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> _ArrayT: ... + @overload + def max( + self, + /, + axis: _ShapeLike | None = None, + *, + out: _ArrayT, + keepdims: builtins.bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> _ArrayT: ... + + @overload + def min( + self, + /, + axis: _ShapeLike | None = None, + out: None = None, + *, + keepdims: builtins.bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> Any: ... + @overload + def min( + self, + /, + axis: _ShapeLike | None, + out: _ArrayT, + *, + keepdims: builtins.bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> _ArrayT: ... + @overload + def min( + self, + /, + axis: _ShapeLike | None = None, + *, + out: _ArrayT, + keepdims: builtins.bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> _ArrayT: ... + + @overload + def sum( + self, + /, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + out: None = None, + *, + keepdims: builtins.bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> Any: ... + @overload + def sum( + self, + /, + axis: _ShapeLike | None, + dtype: DTypeLike | None, + out: _ArrayT, + *, + keepdims: builtins.bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> _ArrayT: ... + @overload + def sum( + self, + /, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + *, + out: _ArrayT, + keepdims: builtins.bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> _ArrayT: ... + + @overload + def prod( + self, + /, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + out: None = None, + *, + keepdims: builtins.bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> Any: ... + @overload + def prod( + self, + /, + axis: _ShapeLike | None, + dtype: DTypeLike | None, + out: _ArrayT, + *, + keepdims: builtins.bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> _ArrayT: ... + @overload + def prod( + self, + /, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + *, + out: _ArrayT, + keepdims: builtins.bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> _ArrayT: ... + + @overload + def mean( + self, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + out: None = None, + *, + keepdims: builtins.bool | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> Any: ... + @overload + def mean( + self, + /, + axis: _ShapeLike | None, + dtype: DTypeLike | None, + out: _ArrayT, + *, + keepdims: builtins.bool | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> _ArrayT: ... + @overload + def mean( + self, + /, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + *, + out: _ArrayT, + keepdims: builtins.bool | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + ) -> _ArrayT: ... + + @overload + def std( + self, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + out: None = None, + ddof: float = 0, + *, + keepdims: builtins.bool | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeNumber_co | _NoValueType = ..., + correction: float | _NoValueType = ..., + ) -> Any: ... + @overload + def std( + self, + axis: _ShapeLike | None, + dtype: DTypeLike | None, + out: _ArrayT, + ddof: float = 0, + *, + keepdims: builtins.bool | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeNumber_co | _NoValueType = ..., + correction: float | _NoValueType = ..., + ) -> _ArrayT: ... + @overload + def std( + self, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + *, + out: _ArrayT, + ddof: float = 0, + keepdims: builtins.bool | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeNumber_co | _NoValueType = ..., + correction: float | _NoValueType = ..., + ) -> _ArrayT: ... + + @overload + def var( + self, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + out: None = None, + ddof: float = 0, + *, + keepdims: builtins.bool | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeNumber_co | _NoValueType = ..., + correction: float | _NoValueType = ..., + ) -> Any: ... + @overload + def var( + self, + axis: _ShapeLike | None, + dtype: DTypeLike | None, + out: _ArrayT, + ddof: float = 0, + *, + keepdims: builtins.bool | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeNumber_co | _NoValueType = ..., + correction: float | _NoValueType = ..., + ) -> _ArrayT: ... + @overload + def var( + self, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + *, + out: _ArrayT, + ddof: float = 0, + keepdims: builtins.bool | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeNumber_co | _NoValueType = ..., + correction: float | _NoValueType = ..., + ) -> _ArrayT: ... + +class ndarray(_ArrayOrScalarCommon, Generic[_ShapeT_co, _DTypeT_co]): + __hash__: ClassVar[None] # type: ignore[assignment] # pyright: ignore[reportIncompatibleMethodOverride] + @property + def base(self) -> NDArray[Any] | None: ... + @property + def ndim(self) -> int: ... + @property + def size(self) -> int: ... + @property + def real(self: _HasDTypeWithRealAndImag[_ScalarT, object], /) -> ndarray[_ShapeT_co, dtype[_ScalarT]]: ... + @real.setter + def real(self, value: ArrayLike, /) -> None: ... + @property + def imag(self: _HasDTypeWithRealAndImag[object, _ScalarT], /) -> ndarray[_ShapeT_co, dtype[_ScalarT]]: ... + @imag.setter + def imag(self, value: ArrayLike, /) -> None: ... + + def __new__( + cls, + shape: _ShapeLike, + dtype: DTypeLike | None = ..., + buffer: _SupportsBuffer | None = ..., + offset: SupportsIndex = ..., + strides: _ShapeLike | None = ..., + order: _OrderKACF = ..., + ) -> Self: ... + + if sys.version_info >= (3, 12): + def __buffer__(self, flags: int, /) -> memoryview: ... + + def __class_getitem__(cls, item: Any, /) -> GenericAlias: ... + + @overload + def __array__(self, dtype: None = None, /, *, copy: builtins.bool | None = None) -> ndarray[_ShapeT_co, _DTypeT_co]: ... + @overload + def __array__(self, dtype: _DTypeT, /, *, copy: builtins.bool | None = None) -> ndarray[_ShapeT_co, _DTypeT]: ... + + def __array_ufunc__( + self, + ufunc: ufunc, + method: L["__call__", "reduce", "reduceat", "accumulate", "outer", "at"], + *inputs: Any, + **kwargs: Any, + ) -> Any: ... + + def __array_function__( + self, + func: Callable[..., Any], + types: Iterable[type], + args: Iterable[Any], + kwargs: Mapping[str, Any], + ) -> Any: ... + + # NOTE: In practice any object is accepted by `obj`, but as `__array_finalize__` + # is a pseudo-abstract method the type has been narrowed down in order to + # grant subclasses a bit more flexibility + def __array_finalize__(self, obj: NDArray[Any] | None, /) -> None: ... + + def __array_wrap__( + self, + array: ndarray[_ShapeT, _DTypeT], + context: tuple[ufunc, tuple[Any, ...], int] | None = ..., + return_scalar: builtins.bool = ..., + /, + ) -> ndarray[_ShapeT, _DTypeT]: ... + + # Keep in sync with `MaskedArray.__getitem__` + @overload + def __getitem__(self, key: _ArrayInt_co | tuple[_ArrayInt_co, ...], /) -> ndarray[_AnyShape, _DTypeT_co]: ... + @overload + def __getitem__(self, key: SupportsIndex | tuple[SupportsIndex, ...], /) -> Any: ... + @overload + def __getitem__(self, key: _ToIndices, /) -> ndarray[_AnyShape, _DTypeT_co]: ... + @overload # can be of any shape + def __getitem__(self: NDArray[void], key: str, /) -> ndarray[_ShapeT_co | _AnyShape]: ... + @overload + def __getitem__(self: NDArray[void], key: list[str], /) -> ndarray[_ShapeT_co | _AnyShape, dtype[void]]: ... + + @overload # flexible | object_ | bool + def __setitem__( + self: ndarray[Any, dtype[flexible | object_ | np.bool] | dtypes.StringDType], + key: _ToIndices, + value: object, + /, + ) -> None: ... + @overload # integer + def __setitem__( + self: NDArray[integer], + key: _ToIndices, + value: _ConvertibleToInt | _NestedSequence[_ConvertibleToInt] | _ArrayLikeInt_co, + /, + ) -> None: ... + @overload # floating + def __setitem__( + self: NDArray[floating], + key: _ToIndices, + value: _ConvertibleToFloat | _NestedSequence[_ConvertibleToFloat | None] | _ArrayLikeFloat_co | None, + /, + ) -> None: ... + @overload # complexfloating + def __setitem__( + self: NDArray[complexfloating], + key: _ToIndices, + value: _ConvertibleToComplex | _NestedSequence[_ConvertibleToComplex | None] | _ArrayLikeNumber_co | None, + /, + ) -> None: ... + @overload # timedelta64 + def __setitem__( + self: NDArray[timedelta64], + key: _ToIndices, + value: _ConvertibleToTD64 | _NestedSequence[_ConvertibleToTD64], + /, + ) -> None: ... + @overload # datetime64 + def __setitem__( + self: NDArray[datetime64], + key: _ToIndices, + value: _ConvertibleToDT64 | _NestedSequence[_ConvertibleToDT64], + /, + ) -> None: ... + @overload # void + def __setitem__(self: NDArray[void], key: str | list[str], value: object, /) -> None: ... + @overload # catch-all + def __setitem__(self, key: _ToIndices, value: ArrayLike, /) -> None: ... + + @property + def ctypes(self) -> _ctypes[int]: ... + + # + @property + def shape(self) -> _ShapeT_co: ... + @shape.setter + @deprecated("In-place shape modification will be deprecated in NumPy 2.5.", category=PendingDeprecationWarning) + def shape(self, value: _ShapeLike) -> None: ... + + # + @property + def strides(self) -> _Shape: ... + @strides.setter + @deprecated("Setting the strides on a NumPy array has been deprecated in NumPy 2.4") + def strides(self, value: _ShapeLike) -> None: ... + + # + def byteswap(self, inplace: builtins.bool = ...) -> Self: ... + @property + def flat(self) -> flatiter[Self]: ... + + @overload # use the same output type as that of the underlying `generic` + def item(self: NDArray[generic[_T]], i0: SupportsIndex | tuple[SupportsIndex, ...] = ..., /, *args: SupportsIndex) -> _T: ... + @overload # special casing for `StringDType`, which has no scalar type + def item( + self: ndarray[Any, dtypes.StringDType], + arg0: SupportsIndex | tuple[SupportsIndex, ...] = ..., + /, + *args: SupportsIndex, + ) -> str: ... + + # keep in sync with `ma.MaskedArray.tolist` + @overload # this first overload prevents mypy from over-eagerly selecting `tuple[()]` in case of `_AnyShape` + def tolist(self: ndarray[tuple[Never], dtype[generic[_T]]], /) -> Any: ... + @overload + def tolist(self: ndarray[tuple[()], dtype[generic[_T]]], /) -> _T: ... + @overload + def tolist(self: ndarray[tuple[int], dtype[generic[_T]]], /) -> list[_T]: ... + @overload + def tolist(self: ndarray[tuple[int, int], dtype[generic[_T]]], /) -> list[list[_T]]: ... + @overload + def tolist(self: ndarray[tuple[int, int, int], dtype[generic[_T]]], /) -> list[list[list[_T]]]: ... + @overload + def tolist(self, /) -> Any: ... + + @overload + def resize(self, new_shape: _ShapeLike, /, *, refcheck: builtins.bool = True) -> None: ... + @overload + def resize(self, /, *new_shape: SupportsIndex, refcheck: builtins.bool = True) -> None: ... + + # keep in sync with `ma.MaskedArray.squeeze` + def squeeze( + self, + /, + axis: SupportsIndex | tuple[SupportsIndex, ...] | None = ..., + ) -> ndarray[_AnyShape, _DTypeT_co]: ... + + def swapaxes(self, axis1: SupportsIndex, axis2: SupportsIndex, /) -> Self: ... + + @overload + def transpose(self, axes: _ShapeLike | None, /) -> Self: ... + @overload + def transpose(self, /, *axes: SupportsIndex) -> Self: ... + + @overload + def all( + self, + axis: None = None, + out: None = None, + keepdims: L[False, 0] = False, + *, + where: _ArrayLikeBool_co = True + ) -> np.bool: ... + @overload + def all( + self, + axis: int | tuple[int, ...] | None = None, + out: None = None, + keepdims: SupportsIndex = False, + *, + where: _ArrayLikeBool_co = True, + ) -> np.bool | NDArray[np.bool]: ... + @overload + def all( + self, + axis: int | tuple[int, ...] | None, + out: _ArrayT, + keepdims: SupportsIndex = False, + *, + where: _ArrayLikeBool_co = True, + ) -> _ArrayT: ... + @overload + def all( + self, + axis: int | tuple[int, ...] | None = None, + *, + out: _ArrayT, + keepdims: SupportsIndex = False, + where: _ArrayLikeBool_co = True, + ) -> _ArrayT: ... + + @overload + def any( + self, + axis: None = None, + out: None = None, + keepdims: L[False, 0] = False, + *, + where: _ArrayLikeBool_co = True + ) -> np.bool: ... + @overload + def any( + self, + axis: int | tuple[int, ...] | None = None, + out: None = None, + keepdims: SupportsIndex = False, + *, + where: _ArrayLikeBool_co = True, + ) -> np.bool | NDArray[np.bool]: ... + @overload + def any( + self, + axis: int | tuple[int, ...] | None, + out: _ArrayT, + keepdims: SupportsIndex = False, + *, + where: _ArrayLikeBool_co = True, + ) -> _ArrayT: ... + @overload + def any( + self, + axis: int | tuple[int, ...] | None = None, + *, + out: _ArrayT, + keepdims: SupportsIndex = False, + where: _ArrayLikeBool_co = True, + ) -> _ArrayT: ... + + # + @overload + def partition( + self, + kth: _ArrayLikeInt, + /, + axis: SupportsIndex = -1, + kind: _PartitionKind = "introselect", + order: None = None, + ) -> None: ... + @overload + def partition( + self: NDArray[void], + kth: _ArrayLikeInt, + /, + axis: SupportsIndex = -1, + kind: _PartitionKind = "introselect", + order: str | Sequence[str] | None = None, + ) -> None: ... + + # + @overload + def argpartition( + self, + kth: _ArrayLikeInt, + /, + axis: SupportsIndex | None = -1, + kind: _PartitionKind = "introselect", + order: None = None, + ) -> NDArray[intp]: ... + @overload + def argpartition( + self: NDArray[void], + kth: _ArrayLikeInt, + /, + axis: SupportsIndex | None = -1, + kind: _PartitionKind = "introselect", + order: str | Sequence[str] | None = None, + ) -> NDArray[intp]: ... + + # keep in sync with `ma.MaskedArray.diagonal` + def diagonal( + self, + offset: SupportsIndex = 0, + axis1: SupportsIndex = 0, + axis2: SupportsIndex = 1, + ) -> ndarray[_AnyShape, _DTypeT_co]: ... + + # 1D + 1D returns a scalar; + # all other with at least 1 non-0D array return an ndarray. + @overload + def dot(self, b: _ScalarLike_co, /, out: None = None) -> NDArray[Any]: ... + @overload + def dot(self, b: ArrayLike, /, out: None = None) -> Any: ... + @overload + def dot(self, b: ArrayLike, /, out: _ArrayT) -> _ArrayT: ... + + # `nonzero()` raises for 0d arrays/generics + def nonzero(self) -> tuple[ndarray[tuple[int], np.dtype[intp]], ...]: ... + + @overload + def searchsorted( + self, # >= 1D array + v: _ScalarLike_co, # 0D array-like + /, + side: _SortSide = "left", + sorter: _ArrayLikeInt_co | None = None, + ) -> intp: ... + @overload + def searchsorted( + self, # >= 1D array + v: ArrayLike, + /, + side: _SortSide = "left", + sorter: _ArrayLikeInt_co | None = None, + ) -> NDArray[intp]: ... + + def sort( + self, + /, + axis: SupportsIndex = -1, + kind: _SortKind | None = None, + order: str | Sequence[str] | None = None, + *, + stable: builtins.bool | None = None, + ) -> None: ... + + # Keep in sync with `MaskedArray.trace` + @overload + def trace( + self, # >= 2D array + /, + offset: SupportsIndex = 0, + axis1: SupportsIndex = 0, + axis2: SupportsIndex = 1, + dtype: DTypeLike | None = None, + out: None = None, + ) -> Any: ... + @overload + def trace( + self, # >= 2D array + /, + offset: SupportsIndex = 0, + axis1: SupportsIndex = 0, + axis2: SupportsIndex = 1, + dtype: DTypeLike | None = None, + *, + out: _ArrayT, + ) -> _ArrayT: ... + @overload + def trace( + self, # >= 2D array + /, + offset: SupportsIndex, + axis1: SupportsIndex, + axis2: SupportsIndex, + dtype: DTypeLike | None, + out: _ArrayT, + ) -> _ArrayT: ... + + @overload + def take( + self: NDArray[_ScalarT], + indices: _IntLike_co, + /, + axis: SupportsIndex | None = ..., + out: None = None, + mode: _ModeKind = ..., + ) -> _ScalarT: ... + @overload + def take( + self, + indices: _ArrayLikeInt_co, + /, + axis: SupportsIndex | None = ..., + out: None = None, + mode: _ModeKind = ..., + ) -> ndarray[_AnyShape, _DTypeT_co]: ... + @overload + def take( + self, + indices: _ArrayLikeInt_co, + /, + axis: SupportsIndex | None = ..., + *, + out: _ArrayT, + mode: _ModeKind = ..., + ) -> _ArrayT: ... + @overload + def take( + self, + indices: _ArrayLikeInt_co, + /, + axis: SupportsIndex | None, + out: _ArrayT, + mode: _ModeKind = ..., + ) -> _ArrayT: ... + + # keep in sync with `ma.MaskedArray.repeat` + @overload + def repeat(self, repeats: _ArrayLikeInt_co, /, axis: None = None) -> ndarray[tuple[int], _DTypeT_co]: ... + @overload + def repeat(self, repeats: _ArrayLikeInt_co, /, axis: SupportsIndex) -> ndarray[_AnyShape, _DTypeT_co]: ... + + # keep in sync with `ma.MaskedArray.flatten` and `ma.MaskedArray.ravel` + def flatten(self, /, order: _OrderKACF = "C") -> ndarray[tuple[int], _DTypeT_co]: ... + def ravel(self, /, order: _OrderKACF = "C") -> ndarray[tuple[int], _DTypeT_co]: ... + + # Keep in sync with `MaskedArray.reshape` + # NOTE: reshape also accepts negative integers, so we can't use integer literals + @overload # (None) + def reshape(self, shape: None, /, *, order: _OrderACF = "C", copy: builtins.bool | None = None) -> Self: ... + @overload # (empty_sequence) + def reshape( # type: ignore[overload-overlap] # mypy false positive + self, + shape: Sequence[Never], + /, + *, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> ndarray[tuple[()], _DTypeT_co]: ... + @overload # (() | (int) | (int, int) | ....) # up to 8-d + def reshape( + self, + shape: _AnyShapeT, + /, + *, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> ndarray[_AnyShapeT, _DTypeT_co]: ... + @overload # (index) + def reshape( + self, + size1: SupportsIndex, + /, + *, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> ndarray[tuple[int], _DTypeT_co]: ... + @overload # (index, index) + def reshape( + self, + size1: SupportsIndex, + size2: SupportsIndex, + /, + *, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> ndarray[tuple[int, int], _DTypeT_co]: ... + @overload # (index, index, index) + def reshape( + self, + size1: SupportsIndex, + size2: SupportsIndex, + size3: SupportsIndex, + /, + *, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> ndarray[tuple[int, int, int], _DTypeT_co]: ... + @overload # (index, index, index, index) + def reshape( + self, + size1: SupportsIndex, + size2: SupportsIndex, + size3: SupportsIndex, + size4: SupportsIndex, + /, + *, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> ndarray[tuple[int, int, int, int], _DTypeT_co]: ... + @overload # (int, *(index, ...)) + def reshape( + self, + size0: SupportsIndex, + /, + *shape: SupportsIndex, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> ndarray[_AnyShape, _DTypeT_co]: ... + @overload # (sequence[index]) + def reshape( + self, + shape: Sequence[SupportsIndex], + /, + *, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> ndarray[_AnyShape, _DTypeT_co]: ... + + @overload + def astype( + self, + dtype: _DTypeLike[_ScalarT], + order: _OrderKACF = ..., + casting: _CastingKind = ..., + subok: builtins.bool = ..., + copy: builtins.bool | _CopyMode = ..., + ) -> ndarray[_ShapeT_co, dtype[_ScalarT]]: ... + @overload + def astype( + self, + dtype: DTypeLike | None, + order: _OrderKACF = ..., + casting: _CastingKind = ..., + subok: builtins.bool = ..., + copy: builtins.bool | _CopyMode = ..., + ) -> ndarray[_ShapeT_co, dtype]: ... + + # + @overload # () + def view(self, /) -> Self: ... + @overload # (dtype: T) + def view(self, /, dtype: _DTypeT | _HasDType[_DTypeT]) -> ndarray[_ShapeT_co, _DTypeT]: ... + @overload # (dtype: dtype[T]) + def view(self, /, dtype: _DTypeLike[_ScalarT]) -> ndarray[_ShapeT_co, dtype[_ScalarT]]: ... + @overload # (type: T) + def view(self, /, *, type: type[_ArrayT]) -> _ArrayT: ... + @overload # (_: T) + def view(self, /, dtype: type[_ArrayT]) -> _ArrayT: ... + @overload # (dtype: ?) + def view(self, /, dtype: DTypeLike) -> ndarray[_ShapeT_co, dtype]: ... + @overload # (dtype: ?, type: T) + def view(self, /, dtype: DTypeLike, type: type[_ArrayT]) -> _ArrayT: ... + + def setfield(self, val: ArrayLike, /, dtype: DTypeLike, offset: SupportsIndex = 0) -> None: ... + @overload + def getfield(self, /, dtype: _DTypeLike[_ScalarT], offset: SupportsIndex = 0) -> NDArray[_ScalarT]: ... + @overload + def getfield(self, /, dtype: DTypeLike, offset: SupportsIndex = 0) -> NDArray[Any]: ... + + def __index__(self: NDArray[integer], /) -> int: ... + def __complex__(self: NDArray[number | np.bool | object_], /) -> complex: ... + + def __len__(self) -> int: ... + def __contains__(self, value: object, /) -> builtins.bool: ... + + # NOTE: This weird `Never` tuple works around a strange mypy issue where it assigns + # `tuple[int]` to `tuple[Never]` or `tuple[int, int]` to `tuple[Never, Never]`. + # This way the bug only occurs for 9-D arrays, which are probably not very common. + @overload + def __iter__( + self: ndarray[tuple[Never, Never, Never, Never, Never, Never, Never, Never, Never], Any], / + ) -> Iterator[Any]: ... + @overload # == 1-d & dtype[T \ object_] + def __iter__(self: ndarray[tuple[int], dtype[_NonObjectScalarT]], /) -> Iterator[_NonObjectScalarT]: ... + @overload # == 1-d & StringDType + def __iter__(self: ndarray[tuple[int], dtypes.StringDType], /) -> Iterator[str]: ... + @overload # >= 2-d + def __iter__(self: ndarray[tuple[int, int, *tuple[int, ...]], _DTypeT], /) -> Iterator[ndarray[_AnyShape, _DTypeT]]: ... + @overload # ?-d + def __iter__(self, /) -> Iterator[Any]: ... + + # + @overload + def __lt__(self: _ArrayNumber_co, other: _ArrayLikeNumber_co, /) -> NDArray[np.bool]: ... + @overload + def __lt__(self: _ArrayTD64_co, other: _ArrayLikeTD64_co, /) -> NDArray[np.bool]: ... + @overload + def __lt__(self: NDArray[datetime64], other: _ArrayLikeDT64_co, /) -> NDArray[np.bool]: ... + @overload + def __lt__(self: NDArray[bytes_], other: _ArrayLikeBytes_co, /) -> NDArray[np.bool]: ... + @overload + def __lt__( + self: ndarray[Any, dtype[str_] | dtypes.StringDType], other: _ArrayLikeStr_co | _ArrayLikeString_co, / + ) -> NDArray[np.bool]: ... + @overload + def __lt__(self: NDArray[object_], other: object, /) -> NDArray[np.bool]: ... + @overload + def __lt__(self, other: _ArrayLikeObject_co, /) -> NDArray[np.bool]: ... + + # + @overload + def __le__(self: _ArrayNumber_co, other: _ArrayLikeNumber_co, /) -> NDArray[np.bool]: ... + @overload + def __le__(self: _ArrayTD64_co, other: _ArrayLikeTD64_co, /) -> NDArray[np.bool]: ... + @overload + def __le__(self: NDArray[datetime64], other: _ArrayLikeDT64_co, /) -> NDArray[np.bool]: ... + @overload + def __le__(self: NDArray[bytes_], other: _ArrayLikeBytes_co, /) -> NDArray[np.bool]: ... + @overload + def __le__( + self: ndarray[Any, dtype[str_] | dtypes.StringDType], other: _ArrayLikeStr_co | _ArrayLikeString_co, / + ) -> NDArray[np.bool]: ... + @overload + def __le__(self: NDArray[object_], other: object, /) -> NDArray[np.bool]: ... + @overload + def __le__(self, other: _ArrayLikeObject_co, /) -> NDArray[np.bool]: ... + + # + @overload + def __gt__(self: _ArrayNumber_co, other: _ArrayLikeNumber_co, /) -> NDArray[np.bool]: ... + @overload + def __gt__(self: _ArrayTD64_co, other: _ArrayLikeTD64_co, /) -> NDArray[np.bool]: ... + @overload + def __gt__(self: NDArray[datetime64], other: _ArrayLikeDT64_co, /) -> NDArray[np.bool]: ... + @overload + def __gt__(self: NDArray[bytes_], other: _ArrayLikeBytes_co, /) -> NDArray[np.bool]: ... + @overload + def __gt__( + self: ndarray[Any, dtype[str_] | dtypes.StringDType], other: _ArrayLikeStr_co | _ArrayLikeString_co, / + ) -> NDArray[np.bool]: ... + @overload + def __gt__(self: NDArray[object_], other: object, /) -> NDArray[np.bool]: ... + @overload + def __gt__(self, other: _ArrayLikeObject_co, /) -> NDArray[np.bool]: ... + + # + @overload + def __ge__(self: _ArrayNumber_co, other: _ArrayLikeNumber_co, /) -> NDArray[np.bool]: ... + @overload + def __ge__(self: _ArrayTD64_co, other: _ArrayLikeTD64_co, /) -> NDArray[np.bool]: ... + @overload + def __ge__(self: NDArray[datetime64], other: _ArrayLikeDT64_co, /) -> NDArray[np.bool]: ... + @overload + def __ge__(self: NDArray[bytes_], other: _ArrayLikeBytes_co, /) -> NDArray[np.bool]: ... + @overload + def __ge__( + self: ndarray[Any, dtype[str_] | dtypes.StringDType], other: _ArrayLikeStr_co | _ArrayLikeString_co, / + ) -> NDArray[np.bool]: ... + @overload + def __ge__(self: NDArray[object_], other: object, /) -> NDArray[np.bool]: ... + @overload + def __ge__(self, other: _ArrayLikeObject_co, /) -> NDArray[np.bool]: ... + + # Unary ops + + # TODO: Uncomment once https://github.com/python/mypy/issues/14070 is fixed + # @overload + # def __abs__(self: ndarray[_ShapeT, dtypes.Complex64DType], /) -> ndarray[_ShapeT, dtypes.Float32DType]: ... + # @overload + # def __abs__(self: ndarray[_ShapeT, dtypes.Complex128DType], /) -> ndarray[_ShapeT, dtypes.Float64DType]: ... + # @overload + # def __abs__(self: ndarray[_ShapeT, dtypes.CLongDoubleDType], /) -> ndarray[_ShapeT, dtypes.LongDoubleDType]: ... + # @overload + # def __abs__(self: ndarray[_ShapeT, dtype[complex128]], /) -> ndarray[_ShapeT, dtype[float64]]: ... + @overload + def __abs__(self: ndarray[_ShapeT, dtype[complexfloating[_NBit]]], /) -> ndarray[_ShapeT, dtype[floating[_NBit]]]: ... + @overload + def __abs__(self: _RealArrayT, /) -> _RealArrayT: ... + + def __invert__(self: _IntegralArrayT, /) -> _IntegralArrayT: ... # noqa: PYI019 + def __neg__(self: _NumericArrayT, /) -> _NumericArrayT: ... # noqa: PYI019 + def __pos__(self: _NumericArrayT, /) -> _NumericArrayT: ... # noqa: PYI019 + + # Binary ops + + # TODO: Support the "1d @ 1d -> scalar" case + @overload + def __matmul__(self: NDArray[_NumberT], other: _ArrayLikeBool_co, /) -> NDArray[_NumberT]: ... + @overload + def __matmul__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[np.bool]: ... # type: ignore[overload-overlap] + @overload + def __matmul__(self: NDArray[np.bool], other: _ArrayLike[_NumberT], /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __matmul__(self: NDArray[floating[_64Bit]], other: _ArrayLikeFloat64_co, /) -> NDArray[float64]: ... + @overload + def __matmul__(self: _ArrayFloat64_co, other: _ArrayLike[floating[_64Bit]], /) -> NDArray[float64]: ... + @overload + def __matmul__(self: NDArray[complexfloating[_64Bit]], other: _ArrayLikeComplex128_co, /) -> NDArray[complex128]: ... + @overload + def __matmul__(self: _ArrayComplex128_co, other: _ArrayLike[complexfloating[_64Bit]], /) -> NDArray[complex128]: ... + @overload + def __matmul__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __matmul__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... # type: ignore[overload-overlap] + @overload + def __matmul__(self: _ArrayFloat_co, other: _ArrayLikeFloat_co, /) -> NDArray[floating]: ... # type: ignore[overload-overlap] + @overload + def __matmul__(self: _ArrayComplex_co, other: _ArrayLikeComplex_co, /) -> NDArray[complexfloating]: ... + @overload + def __matmul__(self: NDArray[number], other: _ArrayLikeNumber_co, /) -> NDArray[number]: ... + @overload + def __matmul__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __matmul__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + @overload # signature equivalent to __matmul__ + def __rmatmul__(self: NDArray[_NumberT], other: _ArrayLikeBool_co, /) -> NDArray[_NumberT]: ... + @overload + def __rmatmul__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[np.bool]: ... # type: ignore[overload-overlap] + @overload + def __rmatmul__(self: NDArray[np.bool], other: _ArrayLike[_NumberT], /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __rmatmul__(self: NDArray[floating[_64Bit]], other: _ArrayLikeFloat64_co, /) -> NDArray[float64]: ... + @overload + def __rmatmul__(self: _ArrayFloat64_co, other: _ArrayLike[floating[_64Bit]], /) -> NDArray[float64]: ... + @overload + def __rmatmul__(self: NDArray[complexfloating[_64Bit]], other: _ArrayLikeComplex128_co, /) -> NDArray[complex128]: ... + @overload + def __rmatmul__(self: _ArrayComplex128_co, other: _ArrayLike[complexfloating[_64Bit]], /) -> NDArray[complex128]: ... + @overload + def __rmatmul__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rmatmul__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rmatmul__(self: _ArrayFloat_co, other: _ArrayLikeFloat_co, /) -> NDArray[floating]: ... # type: ignore[overload-overlap] + @overload + def __rmatmul__(self: _ArrayComplex_co, other: _ArrayLikeComplex_co, /) -> NDArray[complexfloating]: ... + @overload + def __rmatmul__(self: NDArray[number], other: _ArrayLikeNumber_co, /) -> NDArray[number]: ... + @overload + def __rmatmul__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __rmatmul__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + @overload + def __mod__(self: NDArray[_RealNumberT], other: int | np.bool, /) -> ndarray[_ShapeT_co, dtype[_RealNumberT]]: ... + @overload + def __mod__(self: NDArray[_RealNumberT], other: _ArrayLikeBool_co, /) -> NDArray[_RealNumberT]: ... # type: ignore[overload-overlap] + @overload + def __mod__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[int8]: ... # type: ignore[overload-overlap] + @overload + def __mod__(self: NDArray[np.bool], other: _ArrayLike[_RealNumberT], /) -> NDArray[_RealNumberT]: ... # type: ignore[overload-overlap] + @overload + def __mod__(self: NDArray[float64], other: _ArrayLikeFloat64_co, /) -> NDArray[float64]: ... + @overload + def __mod__(self: _ArrayFloat64_co, other: _ArrayLike[floating[_64Bit]], /) -> NDArray[float64]: ... + @overload + def __mod__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __mod__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... # type: ignore[overload-overlap] + @overload + def __mod__(self: _ArrayFloat_co, other: _ArrayLikeFloat_co, /) -> NDArray[floating]: ... + @overload + def __mod__(self: NDArray[timedelta64], other: _ArrayLike[timedelta64], /) -> NDArray[timedelta64]: ... + @overload + def __mod__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __mod__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + @overload # signature equivalent to __mod__ + def __rmod__(self: NDArray[_RealNumberT], other: int | np.bool, /) -> ndarray[_ShapeT_co, dtype[_RealNumberT]]: ... + @overload + def __rmod__(self: NDArray[_RealNumberT], other: _ArrayLikeBool_co, /) -> NDArray[_RealNumberT]: ... # type: ignore[overload-overlap] + @overload + def __rmod__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[int8]: ... # type: ignore[overload-overlap] + @overload + def __rmod__(self: NDArray[np.bool], other: _ArrayLike[_RealNumberT], /) -> NDArray[_RealNumberT]: ... # type: ignore[overload-overlap] + @overload + def __rmod__(self: NDArray[float64], other: _ArrayLikeFloat64_co, /) -> NDArray[float64]: ... + @overload + def __rmod__(self: _ArrayFloat64_co, other: _ArrayLike[floating[_64Bit]], /) -> NDArray[float64]: ... + @overload + def __rmod__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rmod__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rmod__(self: _ArrayFloat_co, other: _ArrayLikeFloat_co, /) -> NDArray[floating]: ... + @overload + def __rmod__(self: NDArray[timedelta64], other: _ArrayLike[timedelta64], /) -> NDArray[timedelta64]: ... + @overload + def __rmod__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __rmod__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + @overload + def __divmod__(self: NDArray[_RealNumberT], rhs: int | np.bool, /) -> _2Tuple[ndarray[_ShapeT_co, dtype[_RealNumberT]]]: ... + @overload + def __divmod__(self: NDArray[_RealNumberT], rhs: _ArrayLikeBool_co, /) -> _2Tuple[NDArray[_RealNumberT]]: ... # type: ignore[overload-overlap] + @overload + def __divmod__(self: NDArray[np.bool], rhs: _ArrayLikeBool_co, /) -> _2Tuple[NDArray[int8]]: ... # type: ignore[overload-overlap] + @overload + def __divmod__(self: NDArray[np.bool], rhs: _ArrayLike[_RealNumberT], /) -> _2Tuple[NDArray[_RealNumberT]]: ... # type: ignore[overload-overlap] + @overload + def __divmod__(self: NDArray[float64], rhs: _ArrayLikeFloat64_co, /) -> _2Tuple[NDArray[float64]]: ... + @overload + def __divmod__(self: _ArrayFloat64_co, rhs: _ArrayLike[floating[_64Bit]], /) -> _2Tuple[NDArray[float64]]: ... + @overload + def __divmod__(self: _ArrayUInt_co, rhs: _ArrayLikeUInt_co, /) -> _2Tuple[NDArray[unsignedinteger]]: ... # type: ignore[overload-overlap] + @overload + def __divmod__(self: _ArrayInt_co, rhs: _ArrayLikeInt_co, /) -> _2Tuple[NDArray[signedinteger]]: ... # type: ignore[overload-overlap] + @overload + def __divmod__(self: _ArrayFloat_co, rhs: _ArrayLikeFloat_co, /) -> _2Tuple[NDArray[floating]]: ... + @overload + def __divmod__(self: NDArray[timedelta64], rhs: _ArrayLike[timedelta64], /) -> tuple[NDArray[int64], NDArray[timedelta64]]: ... + + @overload # signature equivalent to __divmod__ + def __rdivmod__(self: NDArray[_RealNumberT], lhs: int | np.bool, /) -> _2Tuple[ndarray[_ShapeT_co, dtype[_RealNumberT]]]: ... + @overload + def __rdivmod__(self: NDArray[_RealNumberT], lhs: _ArrayLikeBool_co, /) -> _2Tuple[NDArray[_RealNumberT]]: ... # type: ignore[overload-overlap] + @overload + def __rdivmod__(self: NDArray[np.bool], lhs: _ArrayLikeBool_co, /) -> _2Tuple[NDArray[int8]]: ... # type: ignore[overload-overlap] + @overload + def __rdivmod__(self: NDArray[np.bool], lhs: _ArrayLike[_RealNumberT], /) -> _2Tuple[NDArray[_RealNumberT]]: ... # type: ignore[overload-overlap] + @overload + def __rdivmod__(self: NDArray[float64], lhs: _ArrayLikeFloat64_co, /) -> _2Tuple[NDArray[float64]]: ... + @overload + def __rdivmod__(self: _ArrayFloat64_co, lhs: _ArrayLike[floating[_64Bit]], /) -> _2Tuple[NDArray[float64]]: ... + @overload + def __rdivmod__(self: _ArrayUInt_co, lhs: _ArrayLikeUInt_co, /) -> _2Tuple[NDArray[unsignedinteger]]: ... # type: ignore[overload-overlap] + @overload + def __rdivmod__(self: _ArrayInt_co, lhs: _ArrayLikeInt_co, /) -> _2Tuple[NDArray[signedinteger]]: ... # type: ignore[overload-overlap] + @overload + def __rdivmod__(self: _ArrayFloat_co, lhs: _ArrayLikeFloat_co, /) -> _2Tuple[NDArray[floating]]: ... + @overload + def __rdivmod__(self: NDArray[timedelta64], lhs: _ArrayLike[timedelta64], /) -> tuple[NDArray[int64], NDArray[timedelta64]]: ... + + # Keep in sync with `MaskedArray.__add__` + @overload + def __add__(self: NDArray[_NumberT], other: int | np.bool, /) -> ndarray[_ShapeT_co, dtype[_NumberT]]: ... + @overload + def __add__(self: NDArray[_NumberT], other: _ArrayLikeBool_co, /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __add__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[np.bool]: ... # type: ignore[overload-overlap] + @overload + def __add__(self: NDArray[np.bool], other: _ArrayLike[_NumberT], /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __add__(self: NDArray[float64], other: _ArrayLikeFloat64_co, /) -> NDArray[float64]: ... + @overload + def __add__(self: _ArrayFloat64_co, other: _ArrayLike[floating[_64Bit]], /) -> NDArray[float64]: ... + @overload + def __add__(self: NDArray[complex128], other: _ArrayLikeComplex128_co, /) -> NDArray[complex128]: ... + @overload + def __add__(self: _ArrayComplex128_co, other: _ArrayLike[complexfloating[_64Bit]], /) -> NDArray[complex128]: ... + @overload + def __add__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __add__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... # type: ignore[overload-overlap] + @overload + def __add__(self: _ArrayFloat_co, other: _ArrayLikeFloat_co, /) -> NDArray[floating]: ... # type: ignore[overload-overlap] + @overload + def __add__(self: _ArrayComplex_co, other: _ArrayLikeComplex_co, /) -> NDArray[complexfloating]: ... # type: ignore[overload-overlap] + @overload + def __add__(self: NDArray[number], other: _ArrayLikeNumber_co, /) -> NDArray[number]: ... # type: ignore[overload-overlap] + @overload + def __add__(self: _ArrayTD64_co, other: _ArrayLikeTD64_co, /) -> NDArray[timedelta64]: ... + @overload + def __add__(self: _ArrayTD64_co, other: _ArrayLikeDT64_co, /) -> NDArray[datetime64]: ... + @overload + def __add__(self: NDArray[datetime64], other: _ArrayLikeTD64_co, /) -> NDArray[datetime64]: ... + @overload + def __add__(self: NDArray[bytes_], other: _ArrayLikeBytes_co, /) -> NDArray[bytes_]: ... + @overload + def __add__(self: NDArray[str_], other: _ArrayLikeStr_co, /) -> NDArray[str_]: ... + @overload + def __add__( + self: ndarray[Any, dtypes.StringDType], + other: _ArrayLikeStr_co | _ArrayLikeString_co, + /, + ) -> ndarray[tuple[Any, ...], dtypes.StringDType]: ... + @overload + def __add__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __add__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + # Keep in sync with `MaskedArray.__radd__` + @overload # signature equivalent to __add__ + def __radd__(self: NDArray[_NumberT], other: int | np.bool, /) -> ndarray[_ShapeT_co, dtype[_NumberT]]: ... + @overload + def __radd__(self: NDArray[_NumberT], other: _ArrayLikeBool_co, /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __radd__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[np.bool]: ... # type: ignore[overload-overlap] + @overload + def __radd__(self: NDArray[np.bool], other: _ArrayLike[_NumberT], /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __radd__(self: NDArray[float64], other: _ArrayLikeFloat64_co, /) -> NDArray[float64]: ... + @overload + def __radd__(self: _ArrayFloat64_co, other: _ArrayLike[floating[_64Bit]], /) -> NDArray[float64]: ... + @overload + def __radd__(self: NDArray[complex128], other: _ArrayLikeComplex128_co, /) -> NDArray[complex128]: ... + @overload + def __radd__(self: _ArrayComplex128_co, other: _ArrayLike[complexfloating[_64Bit]], /) -> NDArray[complex128]: ... + @overload + def __radd__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __radd__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... # type: ignore[overload-overlap] + @overload + def __radd__(self: _ArrayFloat_co, other: _ArrayLikeFloat_co, /) -> NDArray[floating]: ... # type: ignore[overload-overlap] + @overload + def __radd__(self: _ArrayComplex_co, other: _ArrayLikeComplex_co, /) -> NDArray[complexfloating]: ... # type: ignore[overload-overlap] + @overload + def __radd__(self: NDArray[number], other: _ArrayLikeNumber_co, /) -> NDArray[number]: ... # type: ignore[overload-overlap] + @overload + def __radd__(self: _ArrayTD64_co, other: _ArrayLikeTD64_co, /) -> NDArray[timedelta64]: ... + @overload + def __radd__(self: _ArrayTD64_co, other: _ArrayLikeDT64_co, /) -> NDArray[datetime64]: ... + @overload + def __radd__(self: NDArray[datetime64], other: _ArrayLikeTD64_co, /) -> NDArray[datetime64]: ... + @overload + def __radd__(self: NDArray[bytes_], other: _ArrayLikeBytes_co, /) -> NDArray[bytes_]: ... + @overload + def __radd__(self: NDArray[str_], other: _ArrayLikeStr_co, /) -> NDArray[str_]: ... + @overload + def __radd__( + self: ndarray[Any, dtypes.StringDType], + other: _ArrayLikeStr_co | _ArrayLikeString_co, + /, + ) -> ndarray[tuple[Any, ...], dtypes.StringDType]: ... + @overload + def __radd__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __radd__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + # Keep in sync with `MaskedArray.__sub__` + @overload + def __sub__(self: NDArray[_NumberT], other: int | np.bool, /) -> ndarray[_ShapeT_co, dtype[_NumberT]]: ... + @overload + def __sub__(self: NDArray[_NumberT], other: _ArrayLikeBool_co, /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __sub__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NoReturn: ... + @overload + def __sub__(self: NDArray[np.bool], other: _ArrayLike[_NumberT], /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __sub__(self: NDArray[float64], other: _ArrayLikeFloat64_co, /) -> NDArray[float64]: ... + @overload + def __sub__(self: _ArrayFloat64_co, other: _ArrayLike[floating[_64Bit]], /) -> NDArray[float64]: ... + @overload + def __sub__(self: NDArray[complex128], other: _ArrayLikeComplex128_co, /) -> NDArray[complex128]: ... + @overload + def __sub__(self: _ArrayComplex128_co, other: _ArrayLike[complexfloating[_64Bit]], /) -> NDArray[complex128]: ... + @overload + def __sub__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __sub__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... # type: ignore[overload-overlap] + @overload + def __sub__(self: _ArrayFloat_co, other: _ArrayLikeFloat_co, /) -> NDArray[floating]: ... # type: ignore[overload-overlap] + @overload + def __sub__(self: _ArrayComplex_co, other: _ArrayLikeComplex_co, /) -> NDArray[complexfloating]: ... # type: ignore[overload-overlap] + @overload + def __sub__(self: NDArray[number], other: _ArrayLikeNumber_co, /) -> NDArray[number]: ... # type: ignore[overload-overlap] + @overload + def __sub__(self: _ArrayTD64_co, other: _ArrayLikeTD64_co, /) -> NDArray[timedelta64]: ... + @overload + def __sub__(self: NDArray[datetime64], other: _ArrayLikeTD64_co, /) -> NDArray[datetime64]: ... + @overload + def __sub__(self: NDArray[datetime64], other: _ArrayLikeDT64_co, /) -> NDArray[timedelta64]: ... + @overload + def __sub__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __sub__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + # Keep in sync with `MaskedArray.__rsub__` + @overload + def __rsub__(self: NDArray[_NumberT], other: int | np.bool, /) -> ndarray[_ShapeT_co, dtype[_NumberT]]: ... + @overload + def __rsub__(self: NDArray[_NumberT], other: _ArrayLikeBool_co, /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __rsub__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NoReturn: ... + @overload + def __rsub__(self: NDArray[np.bool], other: _ArrayLike[_NumberT], /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __rsub__(self: NDArray[float64], other: _ArrayLikeFloat64_co, /) -> NDArray[float64]: ... + @overload + def __rsub__(self: _ArrayFloat64_co, other: _ArrayLike[floating[_64Bit]], /) -> NDArray[float64]: ... + @overload + def __rsub__(self: NDArray[complex128], other: _ArrayLikeComplex128_co, /) -> NDArray[complex128]: ... + @overload + def __rsub__(self: _ArrayComplex128_co, other: _ArrayLike[complexfloating[_64Bit]], /) -> NDArray[complex128]: ... + @overload + def __rsub__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rsub__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rsub__(self: _ArrayFloat_co, other: _ArrayLikeFloat_co, /) -> NDArray[floating]: ... # type: ignore[overload-overlap] + @overload + def __rsub__(self: _ArrayComplex_co, other: _ArrayLikeComplex_co, /) -> NDArray[complexfloating]: ... # type: ignore[overload-overlap] + @overload + def __rsub__(self: NDArray[number], other: _ArrayLikeNumber_co, /) -> NDArray[number]: ... # type: ignore[overload-overlap] + @overload + def __rsub__(self: _ArrayTD64_co, other: _ArrayLikeTD64_co, /) -> NDArray[timedelta64]: ... + @overload + def __rsub__(self: _ArrayTD64_co, other: _ArrayLikeDT64_co, /) -> NDArray[datetime64]: ... + @overload + def __rsub__(self: NDArray[datetime64], other: _ArrayLikeDT64_co, /) -> NDArray[timedelta64]: ... + @overload + def __rsub__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __rsub__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + # Keep in sync with `MaskedArray.__mul__` + @overload + def __mul__(self: NDArray[_NumberT], other: int | np.bool, /) -> ndarray[_ShapeT_co, dtype[_NumberT]]: ... + @overload + def __mul__(self: NDArray[_NumberT], other: _ArrayLikeBool_co, /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __mul__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[np.bool]: ... # type: ignore[overload-overlap] + @overload + def __mul__(self: NDArray[np.bool], other: _ArrayLike[_NumberT], /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __mul__(self: NDArray[float64], other: _ArrayLikeFloat64_co, /) -> NDArray[float64]: ... + @overload + def __mul__(self: _ArrayFloat64_co, other: _ArrayLike[floating[_64Bit]], /) -> NDArray[float64]: ... + @overload + def __mul__(self: NDArray[complex128], other: _ArrayLikeComplex128_co, /) -> NDArray[complex128]: ... + @overload + def __mul__(self: _ArrayComplex128_co, other: _ArrayLike[complexfloating[_64Bit]], /) -> NDArray[complex128]: ... + @overload + def __mul__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __mul__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... # type: ignore[overload-overlap] + @overload + def __mul__(self: _ArrayFloat_co, other: _ArrayLikeFloat_co, /) -> NDArray[floating]: ... # type: ignore[overload-overlap] + @overload + def __mul__(self: _ArrayComplex_co, other: _ArrayLikeComplex_co, /) -> NDArray[complexfloating]: ... + @overload + def __mul__(self: NDArray[number], other: _ArrayLikeNumber_co, /) -> NDArray[number]: ... + @overload + def __mul__(self: NDArray[timedelta64], other: _ArrayLikeFloat_co, /) -> NDArray[timedelta64]: ... + @overload + def __mul__(self: _ArrayFloat_co, other: _ArrayLike[timedelta64], /) -> NDArray[timedelta64]: ... + @overload + def __mul__( + self: ndarray[Any, dtype[character] | dtypes.StringDType], + other: _ArrayLikeInt, + /, + ) -> ndarray[tuple[Any, ...], _DTypeT_co]: ... + @overload + def __mul__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __mul__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + # Keep in sync with `MaskedArray.__rmul__` + @overload # signature equivalent to __mul__ + def __rmul__(self: NDArray[_NumberT], other: int | np.bool, /) -> ndarray[_ShapeT_co, dtype[_NumberT]]: ... + @overload + def __rmul__(self: NDArray[_NumberT], other: _ArrayLikeBool_co, /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __rmul__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[np.bool]: ... # type: ignore[overload-overlap] + @overload + def __rmul__(self: NDArray[np.bool], other: _ArrayLike[_NumberT], /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __rmul__(self: NDArray[float64], other: _ArrayLikeFloat64_co, /) -> NDArray[float64]: ... + @overload + def __rmul__(self: _ArrayFloat64_co, other: _ArrayLike[floating[_64Bit]], /) -> NDArray[float64]: ... + @overload + def __rmul__(self: NDArray[complex128], other: _ArrayLikeComplex128_co, /) -> NDArray[complex128]: ... + @overload + def __rmul__(self: _ArrayComplex128_co, other: _ArrayLike[complexfloating[_64Bit]], /) -> NDArray[complex128]: ... + @overload + def __rmul__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rmul__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rmul__(self: _ArrayFloat_co, other: _ArrayLikeFloat_co, /) -> NDArray[floating]: ... # type: ignore[overload-overlap] + @overload + def __rmul__(self: _ArrayComplex_co, other: _ArrayLikeComplex_co, /) -> NDArray[complexfloating]: ... + @overload + def __rmul__(self: NDArray[number], other: _ArrayLikeNumber_co, /) -> NDArray[number]: ... + @overload + def __rmul__(self: NDArray[timedelta64], other: _ArrayLikeFloat_co, /) -> NDArray[timedelta64]: ... + @overload + def __rmul__(self: _ArrayFloat_co, other: _ArrayLike[timedelta64], /) -> NDArray[timedelta64]: ... + @overload + def __rmul__( + self: ndarray[Any, dtype[character] | dtypes.StringDType], + other: _ArrayLikeInt, + /, + ) -> ndarray[tuple[Any, ...], _DTypeT_co]: ... + @overload + def __rmul__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __rmul__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + # Keep in sync with `MaskedArray.__truediv__` + @overload + def __truediv__(self: _ArrayInt_co | NDArray[float64], other: _ArrayLikeFloat64_co, /) -> NDArray[float64]: ... + @overload + def __truediv__(self: _ArrayFloat64_co, other: _ArrayLikeInt_co | _ArrayLike[floating[_64Bit]], /) -> NDArray[float64]: ... + @overload + def __truediv__(self: NDArray[complex128], other: _ArrayLikeComplex128_co, /) -> NDArray[complex128]: ... + @overload + def __truediv__(self: _ArrayComplex128_co, other: _ArrayLike[complexfloating[_64Bit]], /) -> NDArray[complex128]: ... + @overload + def __truediv__(self: NDArray[floating], other: _ArrayLikeFloat_co, /) -> NDArray[floating]: ... + @overload + def __truediv__(self: _ArrayFloat_co, other: _ArrayLike[floating], /) -> NDArray[floating]: ... + @overload + def __truediv__(self: NDArray[complexfloating], other: _ArrayLikeNumber_co, /) -> NDArray[complexfloating]: ... + @overload + def __truediv__(self: _ArrayNumber_co, other: _ArrayLike[complexfloating], /) -> NDArray[complexfloating]: ... + @overload + def __truediv__(self: NDArray[inexact], other: _ArrayLikeNumber_co, /) -> NDArray[inexact]: ... + @overload + def __truediv__(self: NDArray[number], other: _ArrayLikeNumber_co, /) -> NDArray[number]: ... + @overload + def __truediv__(self: NDArray[timedelta64], other: _ArrayLike[timedelta64], /) -> NDArray[float64]: ... + @overload + def __truediv__(self: NDArray[timedelta64], other: _ArrayLikeBool_co, /) -> NoReturn: ... + @overload + def __truediv__(self: NDArray[timedelta64], other: _ArrayLikeFloat_co, /) -> NDArray[timedelta64]: ... + @overload + def __truediv__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __truediv__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + # Keep in sync with `MaskedArray.__rtruediv__` + @overload + def __rtruediv__(self: _ArrayInt_co | NDArray[float64], other: _ArrayLikeFloat64_co, /) -> NDArray[float64]: ... + @overload + def __rtruediv__(self: _ArrayFloat64_co, other: _ArrayLikeInt_co | _ArrayLike[floating[_64Bit]], /) -> NDArray[float64]: ... + @overload + def __rtruediv__(self: NDArray[complex128], other: _ArrayLikeComplex128_co, /) -> NDArray[complex128]: ... + @overload + def __rtruediv__(self: _ArrayComplex128_co, other: _ArrayLike[complexfloating[_64Bit]], /) -> NDArray[complex128]: ... + @overload + def __rtruediv__(self: NDArray[floating], other: _ArrayLikeFloat_co, /) -> NDArray[floating]: ... + @overload + def __rtruediv__(self: _ArrayFloat_co, other: _ArrayLike[floating], /) -> NDArray[floating]: ... + @overload + def __rtruediv__(self: NDArray[complexfloating], other: _ArrayLikeNumber_co, /) -> NDArray[complexfloating]: ... + @overload + def __rtruediv__(self: _ArrayNumber_co, other: _ArrayLike[complexfloating], /) -> NDArray[complexfloating]: ... + @overload + def __rtruediv__(self: NDArray[inexact], other: _ArrayLikeNumber_co, /) -> NDArray[inexact]: ... + @overload + def __rtruediv__(self: NDArray[number], other: _ArrayLikeNumber_co, /) -> NDArray[number]: ... + @overload + def __rtruediv__(self: NDArray[timedelta64], other: _ArrayLike[timedelta64], /) -> NDArray[float64]: ... + @overload + def __rtruediv__(self: NDArray[integer | floating], other: _ArrayLike[timedelta64], /) -> NDArray[timedelta64]: ... + @overload + def __rtruediv__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __rtruediv__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + # Keep in sync with `MaskedArray.__floordiv__` + @overload + def __floordiv__(self: NDArray[_RealNumberT], other: int | np.bool, /) -> ndarray[_ShapeT_co, dtype[_RealNumberT]]: ... + @overload + def __floordiv__(self: NDArray[_RealNumberT], other: _ArrayLikeBool_co, /) -> NDArray[_RealNumberT]: ... # type: ignore[overload-overlap] + @overload + def __floordiv__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[int8]: ... # type: ignore[overload-overlap] + @overload + def __floordiv__(self: NDArray[np.bool], other: _ArrayLike[_RealNumberT], /) -> NDArray[_RealNumberT]: ... # type: ignore[overload-overlap] + @overload + def __floordiv__(self: NDArray[float64], other: _ArrayLikeFloat64_co, /) -> NDArray[float64]: ... + @overload + def __floordiv__(self: _ArrayFloat64_co, other: _ArrayLike[floating[_64Bit]], /) -> NDArray[float64]: ... + @overload + def __floordiv__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __floordiv__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... # type: ignore[overload-overlap] + @overload + def __floordiv__(self: _ArrayFloat_co, other: _ArrayLikeFloat_co, /) -> NDArray[floating]: ... + @overload + def __floordiv__(self: NDArray[timedelta64], other: _ArrayLike[timedelta64], /) -> NDArray[int64]: ... + @overload + def __floordiv__(self: NDArray[timedelta64], other: _ArrayLikeBool_co, /) -> NoReturn: ... + @overload + def __floordiv__(self: NDArray[timedelta64], other: _ArrayLikeFloat_co, /) -> NDArray[timedelta64]: ... + @overload + def __floordiv__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __floordiv__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + # Keep in sync with `MaskedArray.__rfloordiv__` + @overload + def __rfloordiv__(self: NDArray[_RealNumberT], other: int | np.bool, /) -> ndarray[_ShapeT_co, dtype[_RealNumberT]]: ... + @overload + def __rfloordiv__(self: NDArray[_RealNumberT], other: _ArrayLikeBool_co, /) -> NDArray[_RealNumberT]: ... # type: ignore[overload-overlap] + @overload + def __rfloordiv__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[int8]: ... # type: ignore[overload-overlap] + @overload + def __rfloordiv__(self: NDArray[np.bool], other: _ArrayLike[_RealNumberT], /) -> NDArray[_RealNumberT]: ... # type: ignore[overload-overlap] + @overload + def __rfloordiv__(self: NDArray[float64], other: _ArrayLikeFloat64_co, /) -> NDArray[float64]: ... + @overload + def __rfloordiv__(self: _ArrayFloat64_co, other: _ArrayLike[floating[_64Bit]], /) -> NDArray[float64]: ... + @overload + def __rfloordiv__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rfloordiv__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rfloordiv__(self: _ArrayFloat_co, other: _ArrayLikeFloat_co, /) -> NDArray[floating]: ... + @overload + def __rfloordiv__(self: NDArray[timedelta64], other: _ArrayLike[timedelta64], /) -> NDArray[int64]: ... + @overload + def __rfloordiv__(self: NDArray[floating | integer], other: _ArrayLike[timedelta64], /) -> NDArray[timedelta64]: ... + @overload + def __rfloordiv__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __rfloordiv__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + # Keep in sync with `MaskedArray.__pow__` + @overload + def __pow__(self: NDArray[_NumberT], other: int | np.bool, mod: None = None, /) -> ndarray[_ShapeT_co, dtype[_NumberT]]: ... + @overload + def __pow__(self: NDArray[_NumberT], other: _ArrayLikeBool_co, mod: None = None, /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __pow__(self: NDArray[np.bool], other: _ArrayLikeBool_co, mod: None = None, /) -> NDArray[int8]: ... # type: ignore[overload-overlap] + @overload + def __pow__(self: NDArray[np.bool], other: _ArrayLike[_NumberT], mod: None = None, /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __pow__(self: NDArray[float64], other: _ArrayLikeFloat64_co, mod: None = None, /) -> NDArray[float64]: ... + @overload + def __pow__(self: _ArrayFloat64_co, other: _ArrayLike[floating[_64Bit]], mod: None = None, /) -> NDArray[float64]: ... + @overload + def __pow__(self: NDArray[complex128], other: _ArrayLikeComplex128_co, mod: None = None, /) -> NDArray[complex128]: ... + @overload + def __pow__( + self: _ArrayComplex128_co, other: _ArrayLike[complexfloating[_64Bit]], mod: None = None, / + ) -> NDArray[complex128]: ... + @overload + def __pow__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, mod: None = None, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __pow__(self: _ArrayInt_co, other: _ArrayLikeInt_co, mod: None = None, /) -> NDArray[signedinteger]: ... # type: ignore[overload-overlap] + @overload + def __pow__(self: _ArrayFloat_co, other: _ArrayLikeFloat_co, mod: None = None, /) -> NDArray[floating]: ... # type: ignore[overload-overlap] + @overload + def __pow__(self: _ArrayComplex_co, other: _ArrayLikeComplex_co, mod: None = None, /) -> NDArray[complexfloating]: ... + @overload + def __pow__(self: NDArray[number], other: _ArrayLikeNumber_co, mod: None = None, /) -> NDArray[number]: ... + @overload + def __pow__(self: NDArray[object_], other: Any, mod: None = None, /) -> Any: ... + @overload + def __pow__(self: NDArray[Any], other: _ArrayLikeObject_co, mod: None = None, /) -> Any: ... + + # Keep in sync with `MaskedArray.__rpow__` + @overload + def __rpow__(self: NDArray[_NumberT], other: int | np.bool, mod: None = None, /) -> ndarray[_ShapeT_co, dtype[_NumberT]]: ... + @overload + def __rpow__(self: NDArray[_NumberT], other: _ArrayLikeBool_co, mod: None = None, /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __rpow__(self: NDArray[np.bool], other: _ArrayLikeBool_co, mod: None = None, /) -> NDArray[int8]: ... # type: ignore[overload-overlap] + @overload + def __rpow__(self: NDArray[np.bool], other: _ArrayLike[_NumberT], mod: None = None, /) -> NDArray[_NumberT]: ... # type: ignore[overload-overlap] + @overload + def __rpow__(self: NDArray[float64], other: _ArrayLikeFloat64_co, mod: None = None, /) -> NDArray[float64]: ... + @overload + def __rpow__(self: _ArrayFloat64_co, other: _ArrayLike[floating[_64Bit]], mod: None = None, /) -> NDArray[float64]: ... + @overload + def __rpow__(self: NDArray[complex128], other: _ArrayLikeComplex128_co, mod: None = None, /) -> NDArray[complex128]: ... + @overload + def __rpow__( + self: _ArrayComplex128_co, other: _ArrayLike[complexfloating[_64Bit]], mod: None = None, / + ) -> NDArray[complex128]: ... + @overload + def __rpow__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, mod: None = None, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rpow__(self: _ArrayInt_co, other: _ArrayLikeInt_co, mod: None = None, /) -> NDArray[signedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rpow__(self: _ArrayFloat_co, other: _ArrayLikeFloat_co, mod: None = None, /) -> NDArray[floating]: ... # type: ignore[overload-overlap] + @overload + def __rpow__(self: _ArrayComplex_co, other: _ArrayLikeComplex_co, mod: None = None, /) -> NDArray[complexfloating]: ... + @overload + def __rpow__(self: NDArray[number], other: _ArrayLikeNumber_co, mod: None = None, /) -> NDArray[number]: ... + @overload + def __rpow__(self: NDArray[object_], other: Any, mod: None = None, /) -> Any: ... + @overload + def __rpow__(self: NDArray[Any], other: _ArrayLikeObject_co, mod: None = None, /) -> Any: ... + + @overload + def __lshift__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[int8]: ... + @overload + def __lshift__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __lshift__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... + @overload + def __lshift__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __lshift__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + @overload + def __rlshift__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[int8]: ... + @overload + def __rlshift__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rlshift__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... + @overload + def __rlshift__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __rlshift__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + @overload + def __rshift__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[int8]: ... + @overload + def __rshift__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rshift__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... + @overload + def __rshift__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __rshift__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + @overload + def __rrshift__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[int8]: ... + @overload + def __rrshift__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rrshift__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... + @overload + def __rrshift__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __rrshift__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + @overload + def __and__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[np.bool]: ... + @overload + def __and__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __and__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... + @overload + def __and__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __and__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + @overload + def __rand__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[np.bool]: ... + @overload + def __rand__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rand__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... + @overload + def __rand__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __rand__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + @overload + def __xor__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[np.bool]: ... + @overload + def __xor__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __xor__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... + @overload + def __xor__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __xor__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + @overload + def __rxor__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[np.bool]: ... + @overload + def __rxor__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __rxor__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... + @overload + def __rxor__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __rxor__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + @overload + def __or__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[np.bool]: ... + @overload + def __or__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __or__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... + @overload + def __or__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __or__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + @overload + def __ror__(self: NDArray[np.bool], other: _ArrayLikeBool_co, /) -> NDArray[np.bool]: ... + @overload + def __ror__(self: _ArrayUInt_co, other: _ArrayLikeUInt_co, /) -> NDArray[unsignedinteger]: ... # type: ignore[overload-overlap] + @overload + def __ror__(self: _ArrayInt_co, other: _ArrayLikeInt_co, /) -> NDArray[signedinteger]: ... + @overload + def __ror__(self: NDArray[object_], other: Any, /) -> Any: ... + @overload + def __ror__(self: NDArray[Any], other: _ArrayLikeObject_co, /) -> Any: ... + + # `np.generic` does not support inplace operations + + # NOTE: Inplace ops generally use "same_kind" casting w.r.t. to the left + # operand. An exception to this rule are unsigned integers though, which + # also accepts a signed integer for the right operand as long it is a 0D + # object and its value is >= 0 + # NOTE: Due to a mypy bug, overloading on e.g. `self: NDArray[SCT_floating]` won't + # work, as this will lead to `false negatives` when using these inplace ops. + + # += + @overload # type: ignore[misc] + def __iadd__(self: _BoolArrayT, other: _ArrayLikeBool_co, /) -> _BoolArrayT: ... + @overload + def __iadd__(self: _ComplexFloatingArrayT, other: _ArrayLikeComplex_co, /) -> _ComplexFloatingArrayT: ... + @overload + def __iadd__(self: _InexactArrayT, other: _ArrayLikeFloat_co, /) -> _InexactArrayT: ... + @overload + def __iadd__(self: _NumberArrayT, other: _ArrayLikeInt_co, /) -> _NumberArrayT: ... + @overload + def __iadd__(self: _TimeArrayT, other: _ArrayLikeTD64_co, /) -> _TimeArrayT: ... + @overload + def __iadd__(self: _BytesArrayT, other: _ArrayLikeBytes_co, /) -> _BytesArrayT: ... + @overload + def __iadd__(self: _StringArrayT, other: _ArrayLikeStr_co | _ArrayLikeString_co, /) -> _StringArrayT: ... + @overload + def __iadd__(self: _ObjectArrayT, other: object, /) -> _ObjectArrayT: ... + + # -= + @overload # type: ignore[misc] + def __isub__(self: _ComplexFloatingArrayT, other: _ArrayLikeComplex_co, /) -> _ComplexFloatingArrayT: ... + @overload + def __isub__(self: _InexactArrayT, other: _ArrayLikeFloat_co, /) -> _InexactArrayT: ... + @overload + def __isub__(self: _NumberArrayT, other: _ArrayLikeInt_co, /) -> _NumberArrayT: ... + @overload + def __isub__(self: _TimeArrayT, other: _ArrayLikeTD64_co, /) -> _TimeArrayT: ... + @overload + def __isub__(self: _ObjectArrayT, other: object, /) -> _ObjectArrayT: ... + + # *= + @overload # type: ignore[misc] + def __imul__(self: _BoolArrayT, other: _ArrayLikeBool_co, /) -> _BoolArrayT: ... + @overload + def __imul__(self: _ComplexFloatingArrayT, other: _ArrayLikeComplex_co, /) -> _ComplexFloatingArrayT: ... + @overload + def __imul__(self: _InexactTimedeltaArrayT, other: _ArrayLikeFloat_co, /) -> _InexactTimedeltaArrayT: ... + @overload + def __imul__(self: _NumberCharacterArrayT, other: _ArrayLikeInt_co, /) -> _NumberCharacterArrayT: ... + @overload + def __imul__(self: _ObjectArrayT, other: object, /) -> _ObjectArrayT: ... + + # @= + @overload # type: ignore[misc] + def __imatmul__(self: _BoolArrayT, other: _ArrayLikeBool_co, /) -> _BoolArrayT: ... + @overload + def __imatmul__(self: _ComplexFloatingArrayT, other: _ArrayLikeComplex_co, /) -> _ComplexFloatingArrayT: ... + @overload + def __imatmul__(self: _InexactArrayT, other: _ArrayLikeFloat_co, /) -> _InexactArrayT: ... + @overload + def __imatmul__(self: _NumberArrayT, other: _ArrayLikeInt_co, /) -> _NumberArrayT: ... + @overload + def __imatmul__(self: _ObjectArrayT, other: object, /) -> _ObjectArrayT: ... + + # **= + @overload # type: ignore[misc] + def __ipow__(self: _ComplexFloatingArrayT, other: _ArrayLikeComplex_co, /) -> _ComplexFloatingArrayT: ... + @overload + def __ipow__(self: _InexactArrayT, other: _ArrayLikeFloat_co, /) -> _InexactArrayT: ... + @overload + def __ipow__(self: _NumberArrayT, other: _ArrayLikeInt_co, /) -> _NumberArrayT: ... + @overload + def __ipow__(self: _ObjectArrayT, other: object, /) -> _ObjectArrayT: ... + + # /= + @overload # type: ignore[misc] + def __itruediv__(self: _ComplexFloatingArrayT, other: _ArrayLikeComplex_co, /) -> _ComplexFloatingArrayT: ... + @overload + def __itruediv__(self: _InexactTimedeltaArrayT, other: _ArrayLikeFloat_co, /) -> _InexactTimedeltaArrayT: ... + @overload + def __itruediv__(self: _ObjectArrayT, other: object, /) -> _ObjectArrayT: ... + + # //= + # keep in sync with `__imod__` + @overload # type: ignore[misc] + def __ifloordiv__(self: _IntegerArrayT, other: _ArrayLikeInt_co, /) -> _IntegerArrayT: ... + @overload + def __ifloordiv__(self: _FloatingTimedeltaArrayT, other: _ArrayLikeFloat_co, /) -> _FloatingTimedeltaArrayT: ... + @overload + def __ifloordiv__(self: _ObjectArrayT, other: object, /) -> _ObjectArrayT: ... + + # %= + # keep in sync with `__ifloordiv__` + @overload # type: ignore[misc] + def __imod__(self: _IntegerArrayT, other: _ArrayLikeInt_co, /) -> _IntegerArrayT: ... + @overload + def __imod__(self: _FloatingArrayT, other: _ArrayLikeFloat_co, /) -> _FloatingArrayT: ... + @overload + def __imod__(self: _TimedeltaArrayT, other: _ArrayLike[timedelta64], /) -> _TimedeltaArrayT: ... + @overload + def __imod__(self: _ObjectArrayT, other: object, /) -> _ObjectArrayT: ... + + # <<= + # keep in sync with `__irshift__` + @overload # type: ignore[misc] + def __ilshift__(self: _IntegerArrayT, other: _ArrayLikeInt_co, /) -> _IntegerArrayT: ... + @overload + def __ilshift__(self: _ObjectArrayT, other: object, /) -> _ObjectArrayT: ... + + # >>= + # keep in sync with `__ilshift__` + @overload # type: ignore[misc] + def __irshift__(self: _IntegerArrayT, other: _ArrayLikeInt_co, /) -> _IntegerArrayT: ... + @overload + def __irshift__(self: _ObjectArrayT, other: object, /) -> _ObjectArrayT: ... + + # &= + # keep in sync with `__ixor__` and `__ior__` + @overload # type: ignore[misc] + def __iand__(self: _BoolArrayT, other: _ArrayLikeBool_co, /) -> _BoolArrayT: ... + @overload + def __iand__(self: _IntegerArrayT, other: _ArrayLikeInt_co, /) -> _IntegerArrayT: ... + @overload + def __iand__(self: _ObjectArrayT, other: object, /) -> _ObjectArrayT: ... + + # ^= + # keep in sync with `__iand__` and `__ior__` + @overload # type: ignore[misc] + def __ixor__(self: _BoolArrayT, other: _ArrayLikeBool_co, /) -> _BoolArrayT: ... + @overload + def __ixor__(self: _IntegerArrayT, other: _ArrayLikeInt_co, /) -> _IntegerArrayT: ... + @overload + def __ixor__(self: _ObjectArrayT, other: object, /) -> _ObjectArrayT: ... + + # |= + # keep in sync with `__iand__` and `__ixor__` + @overload # type: ignore[misc] + def __ior__(self: _BoolArrayT, other: _ArrayLikeBool_co, /) -> _BoolArrayT: ... + @overload + def __ior__(self: _IntegerArrayT, other: _ArrayLikeInt_co, /) -> _IntegerArrayT: ... + @overload + def __ior__(self: _ObjectArrayT, other: object, /) -> _ObjectArrayT: ... + + # + def __dlpack__( + self: NDArray[number], + /, + *, + stream: int | Any | None = None, + max_version: tuple[int, int] | None = None, + dl_device: tuple[int, int] | None = None, + copy: builtins.bool | None = None, + ) -> CapsuleType: ... + def __dlpack_device__(self, /) -> tuple[L[1], L[0]]: ... + + # Keep `dtype` at the bottom to avoid name conflicts with `np.dtype` + @property + def dtype(self) -> _DTypeT_co: ... + +# NOTE: while `np.generic` is not technically an instance of `ABCMeta`, +# the `@abstractmethod` decorator is herein used to (forcefully) deny +# the creation of `np.generic` instances. +# The `# type: ignore` comments are necessary to silence mypy errors regarding +# the missing `ABCMeta` metaclass. +# See https://github.com/numpy/numpy-stubs/pull/80 for more details. +class generic(_ArrayOrScalarCommon, Generic[_ItemT_co]): + @abstractmethod + def __new__(cls, /, *args: Any, **kwargs: Any) -> Self: ... + + # NOTE: Technically this doesn't exist at runtime, but it is unlikely to lead to + # type-unsafe situations (the abstract scalar types cannot be instantiated + # themselves) and is convenient to have, so we include it regardless. See + # https://github.com/numpy/numpy/issues/30445 for use-cases and discussion. + def __hash__(self, /) -> int: ... + + if sys.version_info >= (3, 12): + def __buffer__(self, flags: int, /) -> memoryview: ... + + @overload + def __array__(self, dtype: None = None, /) -> ndarray[tuple[()], dtype[Self]]: ... + @overload + def __array__(self, dtype: _DTypeT, /) -> ndarray[tuple[()], _DTypeT]: ... + + @overload + def __array_wrap__( + self, + array: ndarray[_ShapeT, _DTypeT], + context: tuple[ufunc, tuple[object, ...], int] | None, + return_scalar: L[False], + /, + ) -> ndarray[_ShapeT, _DTypeT]: ... + @overload + def __array_wrap__( + self, + array: ndarray[tuple[()], dtype[_ScalarT]], + context: tuple[ufunc, tuple[object, ...], int] | None = None, + return_scalar: L[True] = True, + /, + ) -> _ScalarT: ... + @overload + def __array_wrap__( + self, + array: ndarray[_Shape1T, _DTypeT], + context: tuple[ufunc, tuple[object, ...], int] | None = None, + return_scalar: L[True] = True, + /, + ) -> ndarray[_Shape1T, _DTypeT]: ... + @overload + def __array_wrap__( + self, + array: ndarray[_ShapeT, dtype[_ScalarT]], + context: tuple[ufunc, tuple[object, ...], int] | None = None, + return_scalar: L[True] = True, + /, + ) -> _ScalarT | ndarray[_ShapeT, dtype[_ScalarT]]: ... + + @property + def base(self) -> None: ... + @property + def ndim(self) -> L[0]: ... + @property + def size(self) -> L[1]: ... + @property + def shape(self) -> tuple[()]: ... + @property + def strides(self) -> tuple[()]: ... + @property + def flat(self) -> flatiter[ndarray[tuple[int], dtype[Self]]]: ... + + @overload + def item(self, /) -> _ItemT_co: ... + @overload + def item(self, arg0: L[0, -1] | tuple[L[0, -1]] | tuple[()] = ..., /) -> _ItemT_co: ... + @override + def tolist(self, /) -> _ItemT_co: ... + + # NOTE: these technically exist, but will always raise when called + def trace( # type: ignore[misc] + self: Never, + /, + offset: L[0] = 0, + axis1: L[0] = 0, + axis2: L[1] = 1, + dtype: None = None, + out: None = None, + ) -> Never: ... + def diagonal(self: Never, /, offset: L[0] = 0, axis1: L[0] = 0, axis2: L[1] = 1) -> Never: ... # type: ignore[misc] + def swapaxes(self: Never, axis1: Never, axis2: Never, /) -> Never: ... # type: ignore[misc] + def sort(self: Never, /, axis: L[-1] = -1, kind: None = None, order: None = None, *, stable: None = None) -> Never: ... # type: ignore[misc] + def nonzero(self: Never, /) -> Never: ... # type: ignore[misc] + def setfield(self: Never, val: Never, /, dtype: Never, offset: L[0] = 0) -> None: ... # type: ignore[misc] + def searchsorted(self: Never, v: Never, /, side: L["left"] = "left", sorter: None = None) -> Never: ... # type: ignore[misc] + + # NOTE: this wont't raise, but won't do anything either + @overload + def resize(self, /, *, refcheck: builtins.bool = True) -> None: ... + @overload + def resize(self, new_shape: L[0, -1] | tuple[L[0, -1]] | tuple[()], /, *, refcheck: builtins.bool = True) -> None: ... + + # + def byteswap(self, /, inplace: L[False] = False) -> Self: ... + + # + @overload + def astype( + self, + /, + dtype: _DTypeLike[_ScalarT], + order: _OrderKACF = "K", + casting: _CastingKind = "unsafe", + subok: builtins.bool = True, + copy: builtins.bool | _CopyMode = True, + ) -> _ScalarT: ... + @overload + def astype( + self, + /, + dtype: DTypeLike | None, + order: _OrderKACF = "K", + casting: _CastingKind = "unsafe", + subok: builtins.bool = True, + copy: builtins.bool | _CopyMode = True, + ) -> Incomplete: ... + + # NOTE: `view` will perform a 0D->scalar cast, + # thus the array `type` is irrelevant to the output type + @overload + def view(self, type: type[ndarray] = ...) -> Self: ... + @overload + def view(self, /, dtype: _DTypeLike[_ScalarT], type: type[ndarray] = ...) -> _ScalarT: ... + @overload + def view(self, /, dtype: DTypeLike, type: type[ndarray] = ...) -> Incomplete: ... + + @overload + def getfield(self, /, dtype: _DTypeLike[_ScalarT], offset: SupportsIndex = 0) -> _ScalarT: ... + @overload + def getfield(self, /, dtype: DTypeLike, offset: SupportsIndex = 0) -> Incomplete: ... + + @overload + def take( + self, + indices: _IntLike_co, + /, + axis: SupportsIndex | None = None, + out: None = None, + mode: _ModeKind = "raise", + ) -> Self: ... + @overload + def take( + self, + indices: _ArrayLikeInt_co, + /, + axis: SupportsIndex | None = None, + out: None = None, + mode: _ModeKind = "raise", + ) -> NDArray[Self]: ... + @overload + def take( + self, + indices: _ArrayLikeInt_co, + /, + axis: SupportsIndex | None = None, + *, + out: _ArrayT, + mode: _ModeKind = "raise", + ) -> _ArrayT: ... + @overload + def take( + self, + indices: _ArrayLikeInt_co, + /, + axis: SupportsIndex | None, + out: _ArrayT, + mode: _ModeKind = "raise", + ) -> _ArrayT: ... + + def repeat(self, repeats: _ArrayLikeInt_co, /, axis: SupportsIndex | None = None) -> ndarray[tuple[int], dtype[Self]]: ... + def flatten(self, /, order: _OrderKACF = "C") -> ndarray[tuple[int], dtype[Self]]: ... + def ravel(self, /, order: _OrderKACF = "C") -> ndarray[tuple[int], dtype[Self]]: ... + + @overload # (() | []) + def reshape( + self, + shape: tuple[()] | list[Never], + /, + *, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> Self: ... + @overload # ((1, *(1, ...))@_ShapeT) + def reshape( + self, + shape: _1NShapeT, + /, + *, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> ndarray[_1NShapeT, dtype[Self]]: ... + @overload # (Sequence[index, ...]) # not recommended + def reshape( + self, + shape: Sequence[SupportsIndex], + /, + *, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> Self | ndarray[tuple[L[1], ...], dtype[Self]]: ... + @overload # _(index) + def reshape( + self, + size1: SupportsIndex, + /, + *, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> ndarray[tuple[L[1]], dtype[Self]]: ... + @overload # _(index, index) + def reshape( + self, + size1: SupportsIndex, + size2: SupportsIndex, + /, + *, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> ndarray[tuple[L[1], L[1]], dtype[Self]]: ... + @overload # _(index, index, index) + def reshape( + self, + size1: SupportsIndex, + size2: SupportsIndex, + size3: SupportsIndex, + /, + *, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> ndarray[tuple[L[1], L[1], L[1]], dtype[Self]]: ... + @overload # _(index, index, index, index) + def reshape( + self, + size1: SupportsIndex, + size2: SupportsIndex, + size3: SupportsIndex, + size4: SupportsIndex, + /, + *, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> ndarray[tuple[L[1], L[1], L[1], L[1]], dtype[Self]]: ... + @overload # _(index, index, index, index, index, *index) # ndim >= 5 + def reshape( + self, + size1: SupportsIndex, + size2: SupportsIndex, + size3: SupportsIndex, + size4: SupportsIndex, + size5: SupportsIndex, + /, + *sizes6_: SupportsIndex, + order: _OrderACF = "C", + copy: builtins.bool | None = None, + ) -> ndarray[tuple[L[1], L[1], L[1], L[1], L[1], *tuple[L[1], ...]], dtype[Self]]: ... + + def squeeze(self, axis: L[0] | tuple[()] | None = ...) -> Self: ... + def transpose(self, axes: tuple[()] | None = ..., /) -> Self: ... + + @overload + def all( + self, + /, + axis: L[0, -1] | tuple[()] | None = None, + out: None = None, + keepdims: SupportsIndex = False, + *, + where: builtins.bool | np.bool | ndarray[tuple[()], dtype[np.bool]] = True + ) -> np.bool: ... + @overload + def all( + self, + /, + axis: L[0, -1] | tuple[()] | None, + out: ndarray[tuple[()], dtype[_ScalarT]], + keepdims: SupportsIndex = False, + *, + where: builtins.bool | np.bool | ndarray[tuple[()], dtype[np.bool]] = True, + ) -> _ScalarT: ... + @overload + def all( + self, + /, + axis: L[0, -1] | tuple[()] | None = None, + *, + out: ndarray[tuple[()], dtype[_ScalarT]], + keepdims: SupportsIndex = False, + where: builtins.bool | np.bool | ndarray[tuple[()], dtype[np.bool]] = True, + ) -> _ScalarT: ... + + @overload + def any( + self, + /, + axis: L[0, -1] | tuple[()] | None = None, + out: None = None, + keepdims: SupportsIndex = False, + *, + where: builtins.bool | np.bool | ndarray[tuple[()], dtype[np.bool]] = True + ) -> np.bool: ... + @overload + def any( + self, + /, + axis: L[0, -1] | tuple[()] | None, + out: ndarray[tuple[()], dtype[_ScalarT]], + keepdims: SupportsIndex = False, + *, + where: builtins.bool | np.bool | ndarray[tuple[()], dtype[np.bool]] = True, + ) -> _ScalarT: ... + @overload + def any( + self, + /, + axis: L[0, -1] | tuple[()] | None = None, + *, + out: ndarray[tuple[()], dtype[_ScalarT]], + keepdims: SupportsIndex = False, + where: builtins.bool | np.bool | ndarray[tuple[()], dtype[np.bool]] = True, + ) -> _ScalarT: ... + + # Keep `dtype` at the bottom to avoid name conflicts with `np.dtype` + @property + def dtype(self) -> _dtype[Self]: ... + +class number(generic[_NumberItemT_co], Generic[_NBit, _NumberItemT_co]): + @abstractmethod # `SupportsIndex | str | bytes` equivs `_ConvertibleToInt & _ConvertibleToFloat` + def __new__(cls, value: SupportsIndex | str | bytes = 0, /) -> Self: ... + def __class_getitem__(cls, item: Any, /) -> GenericAlias: ... + + def __neg__(self) -> Self: ... + def __pos__(self) -> Self: ... + def __abs__(self) -> Self: ... + + def __add__(self, other: _NumberLike_co, /) -> Incomplete: ... + def __radd__(self, other: _NumberLike_co, /) -> Incomplete: ... + def __sub__(self, other: _NumberLike_co, /) -> Incomplete: ... + def __rsub__(self, other: _NumberLike_co, /) -> Incomplete: ... + def __mul__(self, other: _NumberLike_co, /) -> Incomplete: ... + def __rmul__(self, other: _NumberLike_co, /) -> Incomplete: ... + def __pow__(self, other: _NumberLike_co, mod: None = None, /) -> Incomplete: ... + def __rpow__(self, other: _NumberLike_co, mod: None = None, /) -> Incomplete: ... + def __truediv__(self, other: _NumberLike_co, /) -> Incomplete: ... + def __rtruediv__(self, other: _NumberLike_co, /) -> Incomplete: ... + + @overload + def __lt__(self, other: _NumberLike_co, /) -> bool_: ... + @overload + def __lt__(self, other: _ArrayLikeNumber_co | _NestedSequence[_SupportsGT], /) -> NDArray[bool_]: ... + @overload + def __lt__(self, other: _SupportsGT, /) -> bool_: ... + + @overload + def __le__(self, other: _NumberLike_co, /) -> bool_: ... + @overload + def __le__(self, other: _ArrayLikeNumber_co | _NestedSequence[_SupportsGE], /) -> NDArray[bool_]: ... + @overload + def __le__(self, other: _SupportsGE, /) -> bool_: ... + + @overload + def __gt__(self, other: _NumberLike_co, /) -> bool_: ... + @overload + def __gt__(self, other: _ArrayLikeNumber_co | _NestedSequence[_SupportsLT], /) -> NDArray[bool_]: ... + @overload + def __gt__(self, other: _SupportsLT, /) -> bool_: ... + + @overload + def __ge__(self, other: _NumberLike_co, /) -> bool_: ... + @overload + def __ge__(self, other: _ArrayLikeNumber_co | _NestedSequence[_SupportsLE], /) -> NDArray[bool_]: ... + @overload + def __ge__(self, other: _SupportsLE, /) -> bool_: ... + +class bool(generic[_BoolItemT_co], Generic[_BoolItemT_co]): + @property + def itemsize(self) -> L[1]: ... + @property + def nbytes(self) -> L[1]: ... + @property + def real(self) -> Self: ... + @property + def imag(self) -> np.bool[L[False]]: ... + + @overload # mypy bug workaround: https://github.com/numpy/numpy/issues/29245 + def __new__(cls, value: Never, /) -> np.bool[builtins.bool]: ... + @overload + def __new__(cls, value: _Falsy = ..., /) -> np.bool[L[False]]: ... + @overload + def __new__(cls, value: _Truthy, /) -> np.bool[L[True]]: ... + @overload + def __new__(cls, value: object, /) -> np.bool[builtins.bool]: ... + + def __class_getitem__(cls, type_arg: type | object, /) -> GenericAlias: ... + + def __bool__(self, /) -> _BoolItemT_co: ... + + @overload + def __int__(self: np.bool[L[False]], /) -> L[0]: ... + @overload + def __int__(self: np.bool[L[True]], /) -> L[1]: ... + @overload + def __int__(self, /) -> L[0, 1]: ... + + def __abs__(self) -> Self: ... + + @overload + def __invert__(self: np.bool[L[False]], /) -> np.bool[L[True]]: ... + @overload + def __invert__(self: np.bool[L[True]], /) -> np.bool[L[False]]: ... + @overload + def __invert__(self, /) -> np.bool: ... + + @overload + def __add__(self, other: _NumberT, /) -> _NumberT: ... + @overload + def __add__(self, other: builtins.bool | bool_, /) -> bool_: ... + @overload + def __add__(self, other: int, /) -> int_: ... + @overload + def __add__(self, other: float, /) -> float64: ... + @overload + def __add__(self, other: complex, /) -> complex128: ... + + @overload + def __radd__(self, other: _NumberT, /) -> _NumberT: ... + @overload + def __radd__(self, other: builtins.bool, /) -> bool_: ... + @overload + def __radd__(self, other: int, /) -> int_: ... + @overload + def __radd__(self, other: float, /) -> float64: ... + @overload + def __radd__(self, other: complex, /) -> complex128: ... + + @overload + def __sub__(self, other: _NumberT, /) -> _NumberT: ... + @overload + def __sub__(self, other: int, /) -> int_: ... + @overload + def __sub__(self, other: float, /) -> float64: ... + @overload + def __sub__(self, other: complex, /) -> complex128: ... + + @overload + def __rsub__(self, other: _NumberT, /) -> _NumberT: ... + @overload + def __rsub__(self, other: int, /) -> int_: ... + @overload + def __rsub__(self, other: float, /) -> float64: ... + @overload + def __rsub__(self, other: complex, /) -> complex128: ... + + @overload + def __mul__(self, other: _NumberT, /) -> _NumberT: ... + @overload + def __mul__(self, other: builtins.bool | bool_, /) -> bool_: ... + @overload + def __mul__(self, other: int, /) -> int_: ... + @overload + def __mul__(self, other: float, /) -> float64: ... + @overload + def __mul__(self, other: complex, /) -> complex128: ... + + @overload + def __rmul__(self, other: _NumberT, /) -> _NumberT: ... + @overload + def __rmul__(self, other: builtins.bool, /) -> bool_: ... + @overload + def __rmul__(self, other: int, /) -> int_: ... + @overload + def __rmul__(self, other: float, /) -> float64: ... + @overload + def __rmul__(self, other: complex, /) -> complex128: ... + + @overload + def __pow__(self, other: _NumberT, mod: None = None, /) -> _NumberT: ... + @overload + def __pow__(self, other: builtins.bool | bool_, mod: None = None, /) -> int8: ... + @overload + def __pow__(self, other: int, mod: None = None, /) -> int_: ... + @overload + def __pow__(self, other: float, mod: None = None, /) -> float64: ... + @overload + def __pow__(self, other: complex, mod: None = None, /) -> complex128: ... + + @overload + def __rpow__(self, other: _NumberT, mod: None = None, /) -> _NumberT: ... + @overload + def __rpow__(self, other: builtins.bool, mod: None = None, /) -> int8: ... + @overload + def __rpow__(self, other: int, mod: None = None, /) -> int_: ... + @overload + def __rpow__(self, other: float, mod: None = None, /) -> float64: ... + @overload + def __rpow__(self, other: complex, mod: None = None, /) -> complex128: ... + + @overload + def __truediv__(self, other: _InexactT, /) -> _InexactT: ... + @overload + def __truediv__(self, other: float | integer | bool_, /) -> float64: ... + @overload + def __truediv__(self, other: complex, /) -> complex128: ... + + @overload + def __rtruediv__(self, other: _InexactT, /) -> _InexactT: ... + @overload + def __rtruediv__(self, other: float | integer, /) -> float64: ... + @overload + def __rtruediv__(self, other: complex, /) -> complex128: ... + + @overload + def __floordiv__(self, other: _RealNumberT, /) -> _RealNumberT: ... + @overload + def __floordiv__(self, other: builtins.bool | bool_, /) -> int8: ... + @overload + def __floordiv__(self, other: int, /) -> int_: ... + @overload + def __floordiv__(self, other: float, /) -> float64: ... + + @overload + def __rfloordiv__(self, other: _RealNumberT, /) -> _RealNumberT: ... + @overload + def __rfloordiv__(self, other: builtins.bool, /) -> int8: ... + @overload + def __rfloordiv__(self, other: int, /) -> int_: ... + @overload + def __rfloordiv__(self, other: float, /) -> float64: ... + + # keep in sync with __floordiv__ + @overload + def __mod__(self, other: _RealNumberT, /) -> _RealNumberT: ... + @overload + def __mod__(self, other: builtins.bool | bool_, /) -> int8: ... + @overload + def __mod__(self, other: int, /) -> int_: ... + @overload + def __mod__(self, other: float, /) -> float64: ... + + # keep in sync with __rfloordiv__ + @overload + def __rmod__(self, other: _RealNumberT, /) -> _RealNumberT: ... + @overload + def __rmod__(self, other: builtins.bool, /) -> int8: ... + @overload + def __rmod__(self, other: int, /) -> int_: ... + @overload + def __rmod__(self, other: float, /) -> float64: ... + + # keep in sync with __mod__ + @overload + def __divmod__(self, other: _RealNumberT, /) -> _2Tuple[_RealNumberT]: ... + @overload + def __divmod__(self, other: builtins.bool | bool_, /) -> _2Tuple[int8]: ... + @overload + def __divmod__(self, other: int, /) -> _2Tuple[int_]: ... + @overload + def __divmod__(self, other: float, /) -> _2Tuple[float64]: ... + + # keep in sync with __rmod__ + @overload + def __rdivmod__(self, other: _RealNumberT, /) -> _2Tuple[_RealNumberT]: ... + @overload + def __rdivmod__(self, other: builtins.bool, /) -> _2Tuple[int8]: ... + @overload + def __rdivmod__(self, other: int, /) -> _2Tuple[int_]: ... + @overload + def __rdivmod__(self, other: float, /) -> _2Tuple[float64]: ... + + @overload + def __lshift__(self, other: _IntegerT, /) -> _IntegerT: ... + @overload + def __lshift__(self, other: builtins.bool | bool_, /) -> int8: ... + @overload + def __lshift__(self, other: int, /) -> int_: ... + + @overload + def __rlshift__(self, other: _IntegerT, /) -> _IntegerT: ... + @overload + def __rlshift__(self, other: builtins.bool, /) -> int8: ... + @overload + def __rlshift__(self, other: int, /) -> int_: ... + + # keep in sync with __lshift__ + @overload + def __rshift__(self, other: _IntegerT, /) -> _IntegerT: ... + @overload + def __rshift__(self, other: builtins.bool | bool_, /) -> int8: ... + @overload + def __rshift__(self, other: int, /) -> int_: ... + + # keep in sync with __rlshift__ + @overload + def __rrshift__(self, other: _IntegerT, /) -> _IntegerT: ... + @overload + def __rrshift__(self, other: builtins.bool, /) -> int8: ... + @overload + def __rrshift__(self, other: int, /) -> int_: ... + + @overload + def __and__(self: np.bool[L[False]], other: builtins.bool | np.bool, /) -> np.bool[L[False]]: ... + @overload + def __and__(self, other: L[False] | np.bool[L[False]], /) -> np.bool[L[False]]: ... + @overload + def __and__(self, other: L[True] | np.bool[L[True]], /) -> Self: ... + @overload + def __and__(self, other: builtins.bool | np.bool, /) -> np.bool: ... + @overload + def __and__(self, other: _IntegerT, /) -> _IntegerT: ... + @overload + def __and__(self, other: int, /) -> np.bool | intp: ... + __rand__ = __and__ + + @overload + def __xor__(self: np.bool[L[False]], other: _BoolItemT | np.bool[_BoolItemT], /) -> np.bool[_BoolItemT]: ... + @overload + def __xor__(self: np.bool[L[True]], other: L[True] | np.bool[L[True]], /) -> np.bool[L[False]]: ... + @overload + def __xor__(self, other: L[False] | np.bool[L[False]], /) -> Self: ... + @overload + def __xor__(self, other: builtins.bool | np.bool, /) -> np.bool: ... + @overload + def __xor__(self, other: _IntegerT, /) -> _IntegerT: ... + @overload + def __xor__(self, other: int, /) -> np.bool | intp: ... + __rxor__ = __xor__ + + @overload + def __or__(self: np.bool[L[True]], other: builtins.bool | np.bool, /) -> np.bool[L[True]]: ... + @overload + def __or__(self, other: L[False] | np.bool[L[False]], /) -> Self: ... + @overload + def __or__(self, other: L[True] | np.bool[L[True]], /) -> np.bool[L[True]]: ... + @overload + def __or__(self, other: builtins.bool | np.bool, /) -> np.bool: ... + @overload + def __or__(self, other: _IntegerT, /) -> _IntegerT: ... + @overload + def __or__(self, other: int, /) -> np.bool | intp: ... + __ror__ = __or__ + + @overload + def __lt__(self, other: _NumberLike_co, /) -> bool_: ... + @overload + def __lt__(self, other: _ArrayLikeNumber_co | _NestedSequence[_SupportsGT], /) -> NDArray[bool_]: ... + @overload + def __lt__(self, other: _SupportsGT, /) -> bool_: ... + + @overload + def __le__(self, other: _NumberLike_co, /) -> bool_: ... + @overload + def __le__(self, other: _ArrayLikeNumber_co | _NestedSequence[_SupportsGE], /) -> NDArray[bool_]: ... + @overload + def __le__(self, other: _SupportsGE, /) -> bool_: ... + + @overload + def __gt__(self, other: _NumberLike_co, /) -> bool_: ... + @overload + def __gt__(self, other: _ArrayLikeNumber_co | _NestedSequence[_SupportsLT], /) -> NDArray[bool_]: ... + @overload + def __gt__(self, other: _SupportsLT, /) -> bool_: ... + + @overload + def __ge__(self, other: _NumberLike_co, /) -> bool_: ... + @overload + def __ge__(self, other: _ArrayLikeNumber_co | _NestedSequence[_SupportsLE], /) -> NDArray[bool_]: ... + @overload + def __ge__(self, other: _SupportsLE, /) -> bool_: ... + +# NOTE: This should _not_ be `Final` or a `TypeAlias` +bool_ = bool + +# NOTE: The `object_` constructor returns the passed object, so instances with type +# `object_` cannot exists (at runtime). +# NOTE: Because mypy has some long-standing bugs related to `__new__`, `object_` can't +# be made generic. +@final +class object_(_RealMixin, generic): + @overload + def __new__(cls, value: None = None, /) -> None: ... # type: ignore[misc] + @overload + def __new__(cls, value: _AnyStr, /) -> _AnyStr: ... # type: ignore[misc] + @overload + def __new__(cls, value: ndarray[_ShapeT, Any], /) -> ndarray[_ShapeT, dtype[Self]]: ... # type: ignore[misc] + @overload + def __new__(cls, value: SupportsLenAndGetItem[object], /) -> NDArray[Self]: ... # type: ignore[misc] + @overload + def __new__(cls, value: _T, /) -> _T: ... # type: ignore[misc] + @overload # catch-all + def __new__(cls, value: Any = ..., /) -> object | NDArray[Self]: ... # type: ignore[misc] + + def __hash__(self, /) -> int: ... + def __abs__(self, /) -> object_: ... # this affects NDArray[object_].__abs__ + def __call__(self, /, *args: object, **kwargs: object) -> Any: ... + + if sys.version_info >= (3, 12): + def __release_buffer__(self, buffer: memoryview, /) -> None: ... + +class integer(_IntegralMixin, _RoundMixin, number[_NBit, int]): + @abstractmethod + def __new__(cls, value: _ConvertibleToInt = 0, /) -> Self: ... + + # NOTE: `bit_count` and `__index__` are technically defined in the concrete subtypes + def bit_count(self, /) -> int: ... + def __index__(self, /) -> int: ... + def __invert__(self, /) -> Self: ... + + @override # type: ignore[override] + @overload + def __truediv__(self, other: float | integer, /) -> float64: ... + @overload + def __truediv__(self, other: complex, /) -> complex128: ... + + @override # type: ignore[override] + @overload + def __rtruediv__(self, other: float | integer, /) -> float64: ... + @overload + def __rtruediv__(self, other: complex, /) -> complex128: ... + + def __floordiv__(self, value: _IntLike_co, /) -> integer: ... + def __rfloordiv__(self, value: _IntLike_co, /) -> integer: ... + def __mod__(self, value: _IntLike_co, /) -> integer: ... + def __rmod__(self, value: _IntLike_co, /) -> integer: ... + def __divmod__(self, value: _IntLike_co, /) -> _2Tuple[integer]: ... + def __rdivmod__(self, value: _IntLike_co, /) -> _2Tuple[integer]: ... + + # Ensure that objects annotated as `integer` support bit-wise operations + def __lshift__(self, other: _IntLike_co, /) -> integer: ... + def __rlshift__(self, other: _IntLike_co, /) -> integer: ... + def __rshift__(self, other: _IntLike_co, /) -> integer: ... + def __rrshift__(self, other: _IntLike_co, /) -> integer: ... + def __and__(self, other: _IntLike_co, /) -> integer: ... + def __rand__(self, other: _IntLike_co, /) -> integer: ... + def __or__(self, other: _IntLike_co, /) -> integer: ... + def __ror__(self, other: _IntLike_co, /) -> integer: ... + def __xor__(self, other: _IntLike_co, /) -> integer: ... + def __rxor__(self, other: _IntLike_co, /) -> integer: ... + +class signedinteger(integer[_NBit]): + def __new__(cls, value: _ConvertibleToInt = 0, /) -> Self: ... + + # arithmetic ops + + @override # type: ignore[override] + @overload + def __add__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __add__(self, other: float, /) -> float64: ... + @overload + def __add__(self, other: complex, /) -> complex128: ... + @overload + def __add__(self, other: signedinteger, /) -> signedinteger: ... + @overload + def __add__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __radd__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __radd__(self, other: float, /) -> float64: ... + @overload + def __radd__(self, other: complex, /) -> complex128: ... + @overload + def __radd__(self, other: signedinteger, /) -> signedinteger: ... + @overload + def __radd__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __sub__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __sub__(self, other: float, /) -> float64: ... + @overload + def __sub__(self, other: complex, /) -> complex128: ... + @overload + def __sub__(self, other: signedinteger, /) -> signedinteger: ... + @overload + def __sub__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __rsub__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __rsub__(self, other: float, /) -> float64: ... + @overload + def __rsub__(self, other: complex, /) -> complex128: ... + @overload + def __rsub__(self, other: signedinteger, /) -> signedinteger: ... + @overload + def __rsub__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __mul__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __mul__(self, other: float, /) -> float64: ... + @overload + def __mul__(self, other: complex, /) -> complex128: ... + @overload + def __mul__(self, other: signedinteger, /) -> signedinteger: ... + @overload + def __mul__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __rmul__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __rmul__(self, other: float, /) -> float64: ... + @overload + def __rmul__(self, other: complex, /) -> complex128: ... + @overload + def __rmul__(self, other: signedinteger, /) -> signedinteger: ... + @overload + def __rmul__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __pow__(self, other: int | int8 | bool_ | Self, mod: None = None, /) -> Self: ... + @overload + def __pow__(self, other: float, mod: None = None, /) -> float64: ... + @overload + def __pow__(self, other: complex, mod: None = None, /) -> complex128: ... + @overload + def __pow__(self, other: signedinteger, mod: None = None, /) -> signedinteger: ... + @overload + def __pow__(self, other: integer, mod: None = None, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __rpow__(self, other: int | int8 | bool_, mod: None = None, /) -> Self: ... + @overload + def __rpow__(self, other: float, mod: None = None, /) -> float64: ... + @overload + def __rpow__(self, other: complex, mod: None = None, /) -> complex128: ... + @overload + def __rpow__(self, other: signedinteger, mod: None = None, /) -> signedinteger: ... + @overload + def __rpow__(self, other: integer, mod: None = None, /) -> Incomplete: ... + + # modular division ops + + @override # type: ignore[override] + @overload + def __floordiv__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __floordiv__(self, other: float, /) -> float64: ... + @overload + def __floordiv__(self, other: signedinteger, /) -> signedinteger: ... + @overload + def __floordiv__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __rfloordiv__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __rfloordiv__(self, other: float, /) -> float64: ... + @overload + def __rfloordiv__(self, other: signedinteger, /) -> signedinteger: ... + @overload + def __rfloordiv__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __mod__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __mod__(self, other: float, /) -> float64: ... + @overload + def __mod__(self, other: signedinteger, /) -> signedinteger: ... + @overload + def __mod__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __rmod__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __rmod__(self, other: float, /) -> float64: ... + @overload + def __rmod__(self, other: signedinteger, /) -> signedinteger: ... + @overload + def __rmod__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __divmod__(self, other: int | int8 | bool_ | Self, /) -> _2Tuple[Self]: ... + @overload + def __divmod__(self, other: float, /) -> _2Tuple[float64]: ... + @overload + def __divmod__(self, other: signedinteger, /) -> _2Tuple[signedinteger]: ... + @overload + def __divmod__(self, other: integer, /) -> _2Tuple[Incomplete]: ... + + @override # type: ignore[override] + @overload + def __rdivmod__(self, other: int | int8 | bool_, /) -> _2Tuple[Self]: ... + @overload + def __rdivmod__(self, other: float, /) -> _2Tuple[float64]: ... + @overload + def __rdivmod__(self, other: signedinteger, /) -> _2Tuple[signedinteger]: ... + @overload + def __rdivmod__(self, other: integer, /) -> _2Tuple[Incomplete]: ... + + # bitwise ops + + @override # type: ignore[override] + @overload + def __lshift__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __lshift__(self, other: integer, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __rlshift__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __rlshift__(self, other: integer, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __rshift__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __rshift__(self, other: integer, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __rrshift__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __rrshift__(self, other: integer, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __and__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __and__(self, other: integer, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __rand__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __rand__(self, other: integer, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __xor__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __xor__(self, other: integer, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __rxor__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __rxor__(self, other: integer, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __or__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __or__(self, other: integer, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __ror__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __ror__(self, other: integer, /) -> signedinteger: ... + +int8 = signedinteger[_8Bit] +int16 = signedinteger[_16Bit] +int32 = signedinteger[_32Bit] +int64 = signedinteger[_64Bit] + +byte = signedinteger[_NBitByte] +short = signedinteger[_NBitShort] +intc = signedinteger[_NBitIntC] +intp = signedinteger[_NBitIntP] +int_ = intp +long = signedinteger[_NBitLong] +longlong = signedinteger[_NBitLongLong] + +class unsignedinteger(integer[_NBit1]): + def __new__(cls, value: _ConvertibleToInt = 0, /) -> Self: ... + + # arithmetic ops + + @override # type: ignore[override] + @overload + def __add__(self, other: int | uint8 | bool_ | Self, /) -> Self: ... + @overload + def __add__(self, other: float, /) -> float64: ... + @overload + def __add__(self, other: complex, /) -> complex128: ... + @overload + def __add__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __add__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __radd__(self, other: int | uint8 | bool_, /) -> Self: ... + @overload + def __radd__(self, other: float, /) -> float64: ... + @overload + def __radd__(self, other: complex, /) -> complex128: ... + @overload + def __radd__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __radd__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __sub__(self, other: int | uint8 | bool_ | Self, /) -> Self: ... + @overload + def __sub__(self, other: float, /) -> float64: ... + @overload + def __sub__(self, other: complex, /) -> complex128: ... + @overload + def __sub__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __sub__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __rsub__(self, other: int | uint8 | bool_, /) -> Self: ... + @overload + def __rsub__(self, other: float, /) -> float64: ... + @overload + def __rsub__(self, other: complex, /) -> complex128: ... + @overload + def __rsub__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __rsub__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __mul__(self, other: int | uint8 | bool_ | Self, /) -> Self: ... + @overload + def __mul__(self, other: float, /) -> float64: ... + @overload + def __mul__(self, other: complex, /) -> complex128: ... + @overload + def __mul__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __mul__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __rmul__(self, other: int | uint8 | bool_, /) -> Self: ... + @overload + def __rmul__(self, other: float, /) -> float64: ... + @overload + def __rmul__(self, other: complex, /) -> complex128: ... + @overload + def __rmul__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __rmul__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __pow__(self, other: int | uint8 | bool_ | Self, mod: None = None, /) -> Self: ... + @overload + def __pow__(self, other: float, mod: None = None, /) -> float64: ... + @overload + def __pow__(self, other: complex, mod: None = None, /) -> complex128: ... + @overload + def __pow__(self, other: unsignedinteger, mod: None = None, /) -> unsignedinteger: ... + @overload + def __pow__(self, other: integer, mod: None = None, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __rpow__(self, other: int | uint8 | bool_, mod: None = None, /) -> Self: ... + @overload + def __rpow__(self, other: float, mod: None = None, /) -> float64: ... + @overload + def __rpow__(self, other: complex, mod: None = None, /) -> complex128: ... + @overload + def __rpow__(self, other: unsignedinteger, mod: None = None, /) -> unsignedinteger: ... + @overload + def __rpow__(self, other: integer, mod: None = None, /) -> Incomplete: ... + + # modular division ops + + @override # type: ignore[override] + @overload + def __floordiv__(self, other: int | uint8 | bool_ | Self, /) -> Self: ... + @overload + def __floordiv__(self, other: float, /) -> float64: ... + @overload + def __floordiv__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __floordiv__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __rfloordiv__(self, other: int | uint8 | bool_, /) -> Self: ... + @overload + def __rfloordiv__(self, other: float, /) -> float64: ... + @overload + def __rfloordiv__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __rfloordiv__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __mod__(self, other: int | uint8 | bool_ | Self, /) -> Self: ... + @overload + def __mod__(self, other: float, /) -> float64: ... + @overload + def __mod__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __mod__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __rmod__(self, other: int | uint8 | bool_, /) -> Self: ... + @overload + def __rmod__(self, other: float, /) -> float64: ... + @overload + def __rmod__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __rmod__(self, other: integer, /) -> Incomplete: ... + + @override # type: ignore[override] + @overload + def __divmod__(self, other: int | uint8 | bool_ | Self, /) -> _2Tuple[Self]: ... + @overload + def __divmod__(self, other: float, /) -> _2Tuple[float64]: ... + @overload + def __divmod__(self, other: unsignedinteger, /) -> _2Tuple[unsignedinteger]: ... + @overload + def __divmod__(self, other: integer, /) -> _2Tuple[Incomplete]: ... + + @override # type: ignore[override] + @overload + def __rdivmod__(self, other: int | uint8 | bool_, /) -> _2Tuple[Self]: ... + @overload + def __rdivmod__(self, other: float, /) -> _2Tuple[float64]: ... + @overload + def __rdivmod__(self, other: unsignedinteger, /) -> _2Tuple[unsignedinteger]: ... + @overload + def __rdivmod__(self, other: integer, /) -> _2Tuple[Incomplete]: ... + + # bitwise ops + + @override # type: ignore[override] + @overload + def __lshift__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __lshift__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __lshift__(self, other: signedinteger, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __rlshift__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __rlshift__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __rlshift__(self, other: signedinteger, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __rshift__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __rshift__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __rshift__(self, other: signedinteger, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __rrshift__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __rrshift__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __rrshift__(self, other: signedinteger, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __and__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __and__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __and__(self, other: signedinteger, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __rand__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __rand__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __rand__(self, other: signedinteger, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __xor__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __xor__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __xor__(self, other: signedinteger, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __rxor__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __rxor__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __rxor__(self, other: signedinteger, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __or__(self, other: int | int8 | bool_ | Self, /) -> Self: ... + @overload + def __or__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __or__(self, other: signedinteger, /) -> signedinteger: ... + + @override # type: ignore[override] + @overload + def __ror__(self, other: int | int8 | bool_, /) -> Self: ... + @overload + def __ror__(self, other: unsignedinteger, /) -> unsignedinteger: ... + @overload + def __ror__(self, other: signedinteger, /) -> signedinteger: ... + +uint8: TypeAlias = unsignedinteger[_8Bit] +uint16: TypeAlias = unsignedinteger[_16Bit] +uint32: TypeAlias = unsignedinteger[_32Bit] +uint64: TypeAlias = unsignedinteger[_64Bit] + +ubyte: TypeAlias = unsignedinteger[_NBitByte] +ushort: TypeAlias = unsignedinteger[_NBitShort] +uintc: TypeAlias = unsignedinteger[_NBitIntC] +uintp: TypeAlias = unsignedinteger[_NBitIntP] +uint: TypeAlias = uintp +ulong: TypeAlias = unsignedinteger[_NBitLong] +ulonglong: TypeAlias = unsignedinteger[_NBitLongLong] + +class inexact(number[_NBit, _InexactItemT_co], Generic[_NBit, _InexactItemT_co]): + @abstractmethod + def __new__(cls, value: _ConvertibleToFloat | None = 0, /) -> Self: ... + +class floating(_RealMixin, _RoundMixin, inexact[_NBit1, float]): + def __new__(cls, value: _ConvertibleToFloat | None = 0, /) -> Self: ... + + # arithmetic ops + + @override # type: ignore[override] + @overload + def __add__(self, other: int | float16 | uint8 | int8 | bool_ | Self, /) -> Self: ... + @overload + def __add__(self, other: integer | floating, /) -> floating: ... + @overload + def __add__(self, other: float, /) -> Self: ... + @overload + def __add__(self, other: complex, /) -> complexfloating: ... + + @override # type: ignore[override] + @overload + def __radd__(self, other: int | float16 | uint8 | int8 | bool_, /) -> Self: ... + @overload + def __radd__(self, other: integer | floating, /) -> floating: ... + @overload + def __radd__(self, other: float, /) -> Self: ... + @overload + def __radd__(self, other: complex, /) -> complexfloating: ... + + @override # type: ignore[override] + @overload + def __sub__(self, other: int | float16 | uint8 | int8 | bool_ | Self, /) -> Self: ... + @overload + def __sub__(self, other: integer | floating, /) -> floating: ... + @overload + def __sub__(self, other: float, /) -> Self: ... + @overload + def __sub__(self, other: complex, /) -> complexfloating: ... + + @override # type: ignore[override] + @overload + def __rsub__(self, other: int | float16 | uint8 | int8 | bool_, /) -> Self: ... + @overload + def __rsub__(self, other: integer | floating, /) -> floating: ... + @overload + def __rsub__(self, other: float, /) -> Self: ... + @overload + def __rsub__(self, other: complex, /) -> complexfloating: ... + + @override # type: ignore[override] + @overload + def __mul__(self, other: int | float16 | uint8 | int8 | bool_ | Self, /) -> Self: ... + @overload + def __mul__(self, other: integer | floating, /) -> floating: ... + @overload + def __mul__(self, other: float, /) -> Self: ... + @overload + def __mul__(self, other: complex, /) -> complexfloating: ... + + @override # type: ignore[override] + @overload + def __rmul__(self, other: int | float16 | uint8 | int8 | bool_, /) -> Self: ... + @overload + def __rmul__(self, other: integer | floating, /) -> floating: ... + @overload + def __rmul__(self, other: float, /) -> Self: ... + @overload + def __rmul__(self, other: complex, /) -> complexfloating: ... + + @override # type: ignore[override] + @overload + def __pow__(self, other: int | float16 | uint8 | int8 | bool_ | Self, mod: None = None, /) -> Self: ... + @overload + def __pow__(self, other: integer | floating, mod: None = None, /) -> floating: ... + @overload + def __pow__(self, other: float, mod: None = None, /) -> Self: ... + @overload + def __pow__(self, other: complex, mod: None = None, /) -> complexfloating: ... + + @override # type: ignore[override] + @overload + def __rpow__(self, other: int | float16 | uint8 | int8 | bool_, mod: None = None, /) -> Self: ... + @overload + def __rpow__(self, other: integer | floating, mod: None = None, /) -> floating: ... + @overload + def __rpow__(self, other: float, mod: None = None, /) -> Self: ... + @overload + def __rpow__(self, other: complex, mod: None = None, /) -> complexfloating: ... + + @override # type: ignore[override] + @overload + def __truediv__(self, other: int | float16 | uint8 | int8 | bool_ | Self, /) -> Self: ... + @overload + def __truediv__(self, other: integer | floating, /) -> floating: ... + @overload + def __truediv__(self, other: float, /) -> Self: ... + @overload + def __truediv__(self, other: complex, /) -> complexfloating: ... + + @override # type: ignore[override] + @overload + def __rtruediv__(self, other: int | float16 | uint8 | int8 | bool_, /) -> Self: ... + @overload + def __rtruediv__(self, other: integer | floating, /) -> floating: ... + @overload + def __rtruediv__(self, other: float, /) -> Self: ... + @overload + def __rtruediv__(self, other: complex, /) -> complexfloating: ... + + # modular division ops + + @overload + def __floordiv__(self, other: int | float16 | uint8 | int8 | bool_ | Self, /) -> Self: ... + @overload + def __floordiv__(self, other: integer | floating, /) -> floating: ... + @overload + def __floordiv__(self, other: float, /) -> Self: ... + + @overload + def __rfloordiv__(self, other: int | float16 | uint8 | int8 | bool_, /) -> Self: ... + @overload + def __rfloordiv__(self, other: integer | floating, /) -> floating: ... + @overload + def __rfloordiv__(self, other: float, /) -> Self: ... + + @overload + def __mod__(self, other: int | float16 | uint8 | int8 | bool_ | Self, /) -> Self: ... + @overload + def __mod__(self, other: integer | floating, /) -> floating: ... + @overload + def __mod__(self, other: float, /) -> Self: ... + + @overload + def __rmod__(self, other: int | float16 | uint8 | int8 | bool_, /) -> Self: ... + @overload + def __rmod__(self, other: integer | floating, /) -> floating: ... + @overload + def __rmod__(self, other: float, /) -> Self: ... + + @overload + def __divmod__(self, other: int | float16 | uint8 | int8 | bool_ | Self, /) -> _2Tuple[Self]: ... + @overload + def __divmod__(self, other: integer | floating, /) -> _2Tuple[floating]: ... + @overload + def __divmod__(self, other: float, /) -> _2Tuple[Self]: ... + + @overload + def __rdivmod__(self, other: int | float16 | uint8 | int8 | bool_, /) -> _2Tuple[Self]: ... + @overload + def __rdivmod__(self, other: integer | floating, /) -> _2Tuple[floating]: ... + @overload + def __rdivmod__(self, other: float, /) -> _2Tuple[Self]: ... + + # NOTE: `is_integer` and `as_integer_ratio` are technically defined in the concrete subtypes + def is_integer(self, /) -> builtins.bool: ... + def as_integer_ratio(self, /) -> tuple[int, int]: ... + +float16: TypeAlias = floating[_16Bit] +float32: TypeAlias = floating[_32Bit] + +# either a C `double`, `float`, or `longdouble` +class float64(floating[_64Bit], float): # type: ignore[misc] + @property + def itemsize(self) -> L[8]: ... + @property + def nbytes(self) -> L[8]: ... + + # overrides for `floating` and `builtins.float` compatibility (`_RealMixin` doesn't work) + @property + def real(self) -> Self: ... + @property + def imag(self) -> Self: ... + def conjugate(self) -> Self: ... + def __getnewargs__(self, /) -> tuple[float]: ... + + @classmethod + def __getformat__(cls, typestr: L["double", "float"], /) -> str: ... # undocumented + + # float64-specific operator overrides + # NOTE: Mypy reports [misc] errors about "unsafely overlapping signatures" for the + # reflected methods. But since they are identical to the non-reflected versions, + # these errors appear to be false positives. + + @overload # type: ignore[override] + def __add__(self, other: _Float64_co, /) -> float64: ... + @overload + def __add__(self, other: complexfloating[_64Bit, _64Bit], /) -> complex128: ... + @overload + def __add__(self, other: complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + @overload + def __add__(self, other: complex, /) -> float64 | complex128: ... + + @overload # type: ignore[override] + def __radd__(self, other: _Float64_co, /) -> float64: ... # type: ignore[misc] + @overload + def __radd__(self, other: complexfloating[_64Bit, _64Bit], /) -> complex128: ... # type: ignore[misc] + @overload + def __radd__(self, other: complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + @overload + def __radd__(self, other: complex, /) -> float64 | complex128: ... + + @overload # type: ignore[override] + def __sub__(self, other: _Float64_co, /) -> float64: ... + @overload + def __sub__(self, other: complexfloating[_64Bit, _64Bit], /) -> complex128: ... + @overload + def __sub__(self, other: complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + @overload + def __sub__(self, other: complex, /) -> float64 | complex128: ... + + @overload # type: ignore[override] + def __rsub__(self, other: _Float64_co, /) -> float64: ... # type: ignore[misc] + @overload + def __rsub__(self, other: complexfloating[_64Bit, _64Bit], /) -> complex128: ... # type: ignore[misc] + @overload + def __rsub__(self, other: complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + @overload + def __rsub__(self, other: complex, /) -> float64 | complex128: ... + + @overload # type: ignore[override] + def __mul__(self, other: _Float64_co, /) -> float64: ... + @overload + def __mul__(self, other: complexfloating[_64Bit, _64Bit], /) -> complex128: ... + @overload + def __mul__(self, other: complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + @overload + def __mul__(self, other: complex, /) -> float64 | complex128: ... + + @overload # type: ignore[override] + def __rmul__(self, other: _Float64_co, /) -> float64: ... # type: ignore[misc] + @overload + def __rmul__(self, other: complexfloating[_64Bit, _64Bit], /) -> complex128: ... # type: ignore[misc] + @overload + def __rmul__(self, other: complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + @overload + def __rmul__(self, other: complex, /) -> float64 | complex128: ... + + @overload # type: ignore[override] + def __truediv__(self, other: _Float64_co, /) -> float64: ... + @overload + def __truediv__(self, other: complexfloating[_64Bit, _64Bit], /) -> complex128: ... + @overload + def __truediv__(self, other: complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + @overload + def __truediv__(self, other: complex, /) -> float64 | complex128: ... + + @overload # type: ignore[override] + def __rtruediv__(self, other: _Float64_co, /) -> float64: ... # type: ignore[misc] + @overload + def __rtruediv__(self, other: complexfloating[_64Bit, _64Bit], /) -> complex128: ... # type: ignore[misc] + @overload + def __rtruediv__(self, other: complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + @overload + def __rtruediv__(self, other: complex, /) -> float64 | complex128: ... + + @overload # type: ignore[override] + def __floordiv__(self, other: _Float64_co, /) -> float64: ... + @overload + def __floordiv__(self, other: complexfloating[_64Bit, _64Bit], /) -> complex128: ... + @overload + def __floordiv__(self, other: complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + @overload + def __floordiv__(self, other: complex, /) -> float64 | complex128: ... + + @overload + def __rfloordiv__(self, other: _Float64_co, /) -> float64: ... # type: ignore[misc] + @overload + def __rfloordiv__(self, other: complexfloating[_64Bit, _64Bit], /) -> complex128: ... + @overload + def __rfloordiv__(self, other: complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + @overload + def __rfloordiv__(self, other: complex, /) -> float64 | complex128: ... + + @overload # type: ignore[override] + def __pow__(self, other: _Float64_co, mod: None = None, /) -> float64: ... + @overload + def __pow__(self, other: complexfloating[_64Bit, _64Bit], mod: None = None, /) -> complex128: ... + @overload + def __pow__( + self, other: complexfloating[_NBit1, _NBit2], mod: None = None, / + ) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + @overload + def __pow__(self, other: complex, mod: None = None, /) -> float64 | complex128: ... + + @overload # type: ignore[override] + def __rpow__(self, other: _Float64_co, mod: None = None, /) -> float64: ... # type: ignore[misc] + @overload + def __rpow__(self, other: complexfloating[_64Bit, _64Bit], mod: None = None, /) -> complex128: ... # type: ignore[misc] + @overload + def __rpow__( + self, other: complexfloating[_NBit1, _NBit2], mod: None = None, / + ) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + @overload + def __rpow__(self, other: complex, mod: None = None, /) -> float64 | complex128: ... + + def __mod__(self, other: _Float64_co, /) -> float64: ... + def __rmod__(self, other: _Float64_co, /) -> float64: ... # type: ignore[misc] + + def __divmod__(self, other: _Float64_co, /) -> _2Tuple[float64]: ... + def __rdivmod__(self, other: _Float64_co, /) -> _2Tuple[float64]: ... # type: ignore[misc] + +half: TypeAlias = float16 +single: TypeAlias = float32 +double: TypeAlias = float64 +longdouble: TypeAlias = floating[_NBitLongDouble] + +# The main reason for `complexfloating` having two typevars is cosmetic. +# It is used to clarify why `complex128`s precision is `_64Bit`, the latter +# describing the two 64 bit floats representing its real and imaginary component + +class complexfloating(inexact[_NBit1, complex], Generic[_NBit1, _NBit2]): + @overload + def __new__( + cls, + real: complex | SupportsComplex | SupportsFloat | SupportsIndex = 0, + imag: complex | SupportsFloat | SupportsIndex = 0, + /, + ) -> Self: ... + @overload + def __new__(cls, real: _ConvertibleToComplex | None = 0, /) -> Self: ... + + @property + def real(self) -> floating[_NBit1]: ... + @property + def imag(self) -> floating[_NBit2]: ... + + # NOTE: `__complex__` is technically defined in the concrete subtypes + def __complex__(self, /) -> complex: ... + def __abs__(self, /) -> floating[_NBit1 | _NBit2]: ... # type: ignore[override] + + @overload # type: ignore[override] + def __add__(self, other: _Complex64_co, /) -> complexfloating[_NBit1, _NBit2]: ... + @overload + def __add__(self, other: complex | float64 | complex128, /) -> complexfloating[_NBit1, _NBit2] | complex128: ... + @overload + def __add__(self, other: number[_NBit], /) -> complexfloating[_NBit1, _NBit2] | complexfloating[_NBit, _NBit]: ... + + @overload # type: ignore[override] + def __radd__(self, other: _Complex64_co, /) -> complexfloating[_NBit1, _NBit2]: ... + @overload + def __radd__(self, other: complex, /) -> complexfloating[_NBit1, _NBit2] | complex128: ... + @overload + def __radd__(self, other: number[_NBit], /) -> complexfloating[_NBit1, _NBit2] | complexfloating[_NBit, _NBit]: ... + + @overload # type: ignore[override] + def __sub__(self, other: _Complex64_co, /) -> complexfloating[_NBit1, _NBit2]: ... + @overload + def __sub__(self, other: complex | float64 | complex128, /) -> complexfloating[_NBit1, _NBit2] | complex128: ... + @overload + def __sub__(self, other: number[_NBit], /) -> complexfloating[_NBit1, _NBit2] | complexfloating[_NBit, _NBit]: ... + + @overload # type: ignore[override] + def __rsub__(self, other: _Complex64_co, /) -> complexfloating[_NBit1, _NBit2]: ... + @overload + def __rsub__(self, other: complex, /) -> complexfloating[_NBit1, _NBit2] | complex128: ... + @overload + def __rsub__(self, other: number[_NBit], /) -> complexfloating[_NBit1, _NBit2] | complexfloating[_NBit, _NBit]: ... + + @overload # type: ignore[override] + def __mul__(self, other: _Complex64_co, /) -> complexfloating[_NBit1, _NBit2]: ... + @overload + def __mul__(self, other: complex | float64 | complex128, /) -> complexfloating[_NBit1, _NBit2] | complex128: ... + @overload + def __mul__(self, other: number[_NBit], /) -> complexfloating[_NBit1, _NBit2] | complexfloating[_NBit, _NBit]: ... + + @overload # type: ignore[override] + def __rmul__(self, other: _Complex64_co, /) -> complexfloating[_NBit1, _NBit2]: ... + @overload + def __rmul__(self, other: complex, /) -> complexfloating[_NBit1, _NBit2] | complex128: ... + @overload + def __rmul__(self, other: number[_NBit], /) -> complexfloating[_NBit1, _NBit2] | complexfloating[_NBit, _NBit]: ... + + @overload # type: ignore[override] + def __truediv__(self, other: _Complex64_co, /) -> complexfloating[_NBit1, _NBit2]: ... + @overload + def __truediv__(self, other: complex | float64 | complex128, /) -> complexfloating[_NBit1, _NBit2] | complex128: ... + @overload + def __truediv__(self, other: number[_NBit], /) -> complexfloating[_NBit1, _NBit2] | complexfloating[_NBit, _NBit]: ... + + @overload # type: ignore[override] + def __rtruediv__(self, other: _Complex64_co, /) -> complexfloating[_NBit1, _NBit2]: ... + @overload + def __rtruediv__(self, other: complex, /) -> complexfloating[_NBit1, _NBit2] | complex128: ... + @overload + def __rtruediv__(self, other: number[_NBit], /) -> complexfloating[_NBit1, _NBit2] | complexfloating[_NBit, _NBit]: ... + + @overload # type: ignore[override] + def __pow__(self, other: _Complex64_co, mod: None = None, /) -> complexfloating[_NBit1, _NBit2]: ... + @overload + def __pow__( + self, other: complex | float64 | complex128, mod: None = None, / + ) -> complexfloating[_NBit1, _NBit2] | complex128: ... + @overload + def __pow__( + self, other: number[_NBit], mod: None = None, / + ) -> complexfloating[_NBit1, _NBit2] | complexfloating[_NBit, _NBit]: ... + + @overload # type: ignore[override] + def __rpow__(self, other: _Complex64_co, mod: None = None, /) -> complexfloating[_NBit1, _NBit2]: ... + @overload + def __rpow__(self, other: complex, mod: None = None, /) -> complexfloating[_NBit1, _NBit2] | complex128: ... + @overload + def __rpow__( + self, other: number[_NBit], mod: None = None, / + ) -> complexfloating[_NBit1, _NBit2] | complexfloating[_NBit, _NBit]: ... + +complex64: TypeAlias = complexfloating[_32Bit] + +class complex128(complexfloating[_64Bit, _64Bit], complex): + @property + def itemsize(self) -> L[16]: ... + @property + def nbytes(self) -> L[16]: ... + + # overrides for `floating` and `builtins.float` compatibility + @property + def real(self) -> float64: ... + @property + def imag(self) -> float64: ... + def conjugate(self) -> Self: ... + def __abs__(self) -> float64: ... # type: ignore[override] + def __getnewargs__(self, /) -> tuple[float, float]: ... + + # complex128-specific operator overrides + @overload # type: ignore[override] + def __add__(self, other: _Complex128_co, /) -> complex128: ... + @overload + def __add__(self, other: complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + def __radd__(self, other: _Complex128_co, /) -> complex128: ... # type: ignore[override] + + @overload # type: ignore[override] + def __sub__(self, other: _Complex128_co, /) -> complex128: ... + @overload + def __sub__(self, other: complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + def __rsub__(self, other: _Complex128_co, /) -> complex128: ... # type: ignore[override] + + @overload # type: ignore[override] + def __mul__(self, other: _Complex128_co, /) -> complex128: ... + @overload + def __mul__(self, other: complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + def __rmul__(self, other: _Complex128_co, /) -> complex128: ... # type: ignore[override] + + @overload # type: ignore[override] + def __truediv__(self, other: _Complex128_co, /) -> complex128: ... + @overload + def __truediv__(self, other: complexfloating[_NBit1, _NBit2], /) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + def __rtruediv__(self, other: _Complex128_co, /) -> complex128: ... # type: ignore[override] + + @overload # type: ignore[override] + def __pow__(self, other: _Complex128_co, mod: None = None, /) -> complex128: ... + @overload + def __pow__( + self, other: complexfloating[_NBit1, _NBit2], mod: None = None, / + ) -> complexfloating[_NBit1 | _64Bit, _NBit2 | _64Bit]: ... + def __rpow__(self, other: _Complex128_co, mod: None = None, /) -> complex128: ... # type: ignore[override] + +csingle: TypeAlias = complex64 +cdouble: TypeAlias = complex128 +clongdouble: TypeAlias = complexfloating[_NBitLongDouble] + +class timedelta64(_IntegralMixin, generic[_TD64ItemT_co], Generic[_TD64ItemT_co]): + @property + def itemsize(self) -> L[8]: ... + @property + def nbytes(self) -> L[8]: ... + + @overload + def __new__(cls, value: _TD64ItemT_co | timedelta64[_TD64ItemT_co], /) -> Self: ... + @overload + def __new__(cls, /) -> timedelta64[L[0]]: ... + @overload + def __new__(cls, value: _NaTValue | None, format: _TimeUnitSpec, /) -> timedelta64[None]: ... + @overload + def __new__(cls, value: L[0], format: _TimeUnitSpec[_IntTD64Unit] = ..., /) -> timedelta64[L[0]]: ... + @overload + def __new__(cls, value: _IntLike_co, format: _TimeUnitSpec[_IntTD64Unit] = ..., /) -> timedelta64[int]: ... + @overload + def __new__(cls, value: dt.timedelta, format: _TimeUnitSpec[_IntTimeUnit], /) -> timedelta64[int]: ... + @overload + def __new__( + cls, + value: dt.timedelta | _IntLike_co, + format: _TimeUnitSpec[_NativeTD64Unit] = ..., + /, + ) -> timedelta64[dt.timedelta]: ... + @overload + def __new__(cls, value: _ConvertibleToTD64, format: _TimeUnitSpec = ..., /) -> Self: ... + + # inherited at runtime from `signedinteger` + def __class_getitem__(cls, type_arg: type | object, /) -> GenericAlias: ... + + # NOTE: Only a limited number of units support conversion + # to builtin scalar types: `Y`, `M`, `ns`, `ps`, `fs`, `as` + def __int__(self: timedelta64[int], /) -> int: ... + def __float__(self: timedelta64[int], /) -> float: ... + + def __neg__(self, /) -> Self: ... + def __pos__(self, /) -> Self: ... + def __abs__(self, /) -> Self: ... + + @overload + def __add__(self: timedelta64[None], x: _TD64Like_co, /) -> timedelta64[None]: ... + @overload + def __add__(self: timedelta64[int], x: timedelta64[int | dt.timedelta], /) -> timedelta64[int]: ... + @overload + def __add__(self: timedelta64[int], x: timedelta64, /) -> timedelta64[int | None]: ... + @overload + def __add__(self: timedelta64[dt.timedelta], x: _AnyDateOrTime, /) -> _AnyDateOrTime: ... + @overload + def __add__(self: timedelta64[_AnyTD64Item], x: timedelta64[_AnyTD64Item] | _IntLike_co, /) -> timedelta64[_AnyTD64Item]: ... + @overload + def __add__(self, x: timedelta64[None], /) -> timedelta64[None]: ... # type: ignore[overload-cannot-match] + __radd__ = __add__ + + @overload + def __mul__(self: timedelta64[_AnyTD64Item], x: int | np.integer | np.bool, /) -> timedelta64[_AnyTD64Item]: ... + @overload + def __mul__(self: timedelta64[_AnyTD64Item], x: float | np.floating, /) -> timedelta64[_AnyTD64Item | None]: ... + @overload + def __mul__(self, x: float | np.floating | np.integer | np.bool, /) -> timedelta64: ... + __rmul__ = __mul__ + + @overload + def __mod__(self, x: timedelta64[L[0] | None], /) -> timedelta64[None]: ... + @overload + def __mod__(self: timedelta64[None], x: timedelta64, /) -> timedelta64[None]: ... + @overload + def __mod__(self: timedelta64[int], x: timedelta64[int | dt.timedelta], /) -> timedelta64[int | None]: ... + @overload + def __mod__(self: timedelta64[dt.timedelta], x: timedelta64[_AnyTD64Item], /) -> timedelta64[_AnyTD64Item | None]: ... + @overload + def __mod__(self: timedelta64[dt.timedelta], x: dt.timedelta, /) -> dt.timedelta: ... + @overload + def __mod__(self, x: timedelta64[int], /) -> timedelta64[int | None]: ... + @overload + def __mod__(self, x: timedelta64, /) -> timedelta64: ... + + # NOTE: The L[0] makes __mod__ non-commutative, which the first two overloads + # reflect. However, mypy does not seem to like this, so we ignore the errors. + @overload + def __rmod__(self, x: timedelta64[None], /) -> timedelta64[None]: ... # type: ignore[misc] + @overload + def __rmod__(self: timedelta64[L[0] | None], x: timedelta64, /) -> timedelta64[None]: ... + @overload + def __rmod__(self: timedelta64[int], x: timedelta64[int | dt.timedelta], /) -> timedelta64[int | None]: ... # type: ignore[misc] + @overload + def __rmod__(self: timedelta64[dt.timedelta], x: timedelta64[_AnyTD64Item], /) -> timedelta64[_AnyTD64Item | None]: ... # type: ignore[misc] + @overload + def __rmod__(self: timedelta64[dt.timedelta], x: dt.timedelta, /) -> dt.timedelta: ... + @overload + def __rmod__(self, x: timedelta64[int], /) -> timedelta64[int | None]: ... # type: ignore[misc] + @overload + def __rmod__(self, x: timedelta64, /) -> timedelta64: ... # type: ignore[misc] + + # keep in sync with __mod__ + @overload + def __divmod__(self, x: timedelta64[L[0] | None], /) -> tuple[int64, timedelta64[None]]: ... + @overload + def __divmod__(self: timedelta64[None], x: timedelta64, /) -> tuple[int64, timedelta64[None]]: ... + @overload + def __divmod__(self: timedelta64[int], x: timedelta64[int | dt.timedelta], /) -> tuple[int64, timedelta64[int | None]]: ... + @overload + def __divmod__( + self: timedelta64[dt.timedelta], x: timedelta64[_AnyTD64Item], / + ) -> tuple[int64, timedelta64[_AnyTD64Item | None]]: ... + @overload + def __divmod__(self: timedelta64[dt.timedelta], x: dt.timedelta, /) -> tuple[int, dt.timedelta]: ... + @overload + def __divmod__(self, x: timedelta64[int], /) -> tuple[int64, timedelta64[int | None]]: ... + @overload + def __divmod__(self, x: timedelta64, /) -> tuple[int64, timedelta64]: ... + + # keep in sync with __rmod__ + @overload + def __rdivmod__(self, x: timedelta64[None], /) -> tuple[int64, timedelta64[None]]: ... # type: ignore[misc] + @overload + def __rdivmod__(self: timedelta64[L[0] | None], x: timedelta64, /) -> tuple[int64, timedelta64[None]]: ... # type: ignore[misc] + @overload + def __rdivmod__(self: timedelta64[int], x: timedelta64[int | dt.timedelta], /) -> tuple[int64, timedelta64[int | None]]: ... # type: ignore[misc] + @overload + def __rdivmod__( # type: ignore[misc] + self: timedelta64[dt.timedelta], x: timedelta64[_AnyTD64Item], / + ) -> tuple[int64, timedelta64[_AnyTD64Item | None]]: ... + @overload + def __rdivmod__(self: timedelta64[dt.timedelta], x: dt.timedelta, /) -> tuple[int, dt.timedelta]: ... + @overload + def __rdivmod__(self, x: timedelta64[int], /) -> tuple[int64, timedelta64[int | None]]: ... # type: ignore[misc] + @overload + def __rdivmod__(self, x: timedelta64, /) -> tuple[int64, timedelta64]: ... # type: ignore[misc] + + @overload + def __sub__(self: timedelta64[None], b: _TD64Like_co, /) -> timedelta64[None]: ... + @overload + def __sub__(self: timedelta64[int], b: timedelta64[int | dt.timedelta], /) -> timedelta64[int]: ... + @overload + def __sub__(self: timedelta64[int], b: timedelta64, /) -> timedelta64[int | None]: ... + @overload + def __sub__(self: timedelta64[dt.timedelta], b: dt.timedelta, /) -> dt.timedelta: ... + @overload + def __sub__(self: timedelta64[_AnyTD64Item], b: timedelta64[_AnyTD64Item] | _IntLike_co, /) -> timedelta64[_AnyTD64Item]: ... + @overload + def __sub__(self, b: timedelta64[None], /) -> timedelta64[None]: ... # type: ignore[overload-cannot-match] + + # NOTE: subtraction is not commutative, so __rsub__ differs from __sub__. + # This confuses mypy, so we ignore the [misc] errors it reports. + @overload + def __rsub__(self: timedelta64[None], a: _TD64Like_co, /) -> timedelta64[None]: ... + @overload + def __rsub__(self: timedelta64[dt.timedelta], a: _AnyDateOrTime, /) -> _AnyDateOrTime: ... + @overload + def __rsub__(self: timedelta64[dt.timedelta], a: timedelta64[_AnyTD64Item], /) -> timedelta64[_AnyTD64Item]: ... # type: ignore[misc] + @overload + def __rsub__(self: timedelta64[_AnyTD64Item], a: timedelta64[_AnyTD64Item] | _IntLike_co, /) -> timedelta64[_AnyTD64Item]: ... # type: ignore[misc] + @overload + def __rsub__(self, a: timedelta64[None], /) -> timedelta64[None]: ... # type: ignore[overload-cannot-match] + @overload + def __rsub__(self, a: datetime64[None], /) -> datetime64[None]: ... # type: ignore[misc] + + @overload + def __truediv__(self: timedelta64[dt.timedelta], b: dt.timedelta, /) -> float: ... + @overload + def __truediv__(self, b: timedelta64, /) -> float64: ... + @overload + def __truediv__(self: timedelta64[_AnyTD64Item], b: int | integer, /) -> timedelta64[_AnyTD64Item]: ... + @overload + def __truediv__(self: timedelta64[_AnyTD64Item], b: float | floating, /) -> timedelta64[_AnyTD64Item | None]: ... + @overload + def __truediv__(self, b: float | floating | integer, /) -> timedelta64: ... + + @overload + def __rtruediv__(self: timedelta64[dt.timedelta], a: dt.timedelta, /) -> float: ... + @overload + def __rtruediv__(self, a: timedelta64, /) -> float64: ... + + @overload + def __floordiv__(self: timedelta64[dt.timedelta], b: dt.timedelta, /) -> int: ... + @overload + def __floordiv__(self, b: timedelta64, /) -> int64: ... + @overload + def __floordiv__(self: timedelta64[_AnyTD64Item], b: int | integer, /) -> timedelta64[_AnyTD64Item]: ... + @overload + def __floordiv__(self: timedelta64[_AnyTD64Item], b: float | floating, /) -> timedelta64[_AnyTD64Item | None]: ... + + @overload + def __rfloordiv__(self: timedelta64[dt.timedelta], a: dt.timedelta, /) -> int: ... + @overload + def __rfloordiv__(self, a: timedelta64, /) -> int64: ... + + # comparison ops + + @overload + def __lt__(self, other: _TD64Like_co, /) -> bool_: ... + @overload + def __lt__(self, other: _ArrayLikeTD64_co | _NestedSequence[_SupportsGT], /) -> NDArray[bool_]: ... + @overload + def __lt__(self, other: _SupportsGT, /) -> bool_: ... + + @overload + def __le__(self, other: _TD64Like_co, /) -> bool_: ... + @overload + def __le__(self, other: _ArrayLikeTD64_co | _NestedSequence[_SupportsGE], /) -> NDArray[bool_]: ... + @overload + def __le__(self, other: _SupportsGT, /) -> bool_: ... + + @overload + def __gt__(self, other: _TD64Like_co, /) -> bool_: ... + @overload + def __gt__(self, other: _ArrayLikeTD64_co | _NestedSequence[_SupportsLT], /) -> NDArray[bool_]: ... + @overload + def __gt__(self, other: _SupportsGT, /) -> bool_: ... + + @overload + def __ge__(self, other: _TD64Like_co, /) -> bool_: ... + @overload + def __ge__(self, other: _ArrayLikeTD64_co | _NestedSequence[_SupportsLE], /) -> NDArray[bool_]: ... + @overload + def __ge__(self, other: _SupportsGT, /) -> bool_: ... + +class datetime64(_RealMixin, generic[_DT64ItemT_co], Generic[_DT64ItemT_co]): + @property + def itemsize(self) -> L[8]: ... + @property + def nbytes(self) -> L[8]: ... + + @overload + def __new__(cls, value: datetime64[_DT64ItemT_co], /) -> Self: ... + @overload + def __new__(cls, value: _AnyDT64Arg, /) -> datetime64[_AnyDT64Arg]: ... + @overload + def __new__(cls, value: _NaTValue | None = ..., format: _TimeUnitSpec = ..., /) -> datetime64[None]: ... + @overload + def __new__(cls, value: _DT64Now, format: _TimeUnitSpec[_NativeTimeUnit] = ..., /) -> datetime64[dt.datetime]: ... + @overload + def __new__(cls, value: _DT64Date, format: _TimeUnitSpec[_DateUnit] = ..., /) -> datetime64[dt.date]: ... + @overload + def __new__(cls, value: int | bytes | str | dt.date, format: _TimeUnitSpec[_IntTimeUnit], /) -> datetime64[int]: ... + @overload + def __new__( + cls, value: int | bytes | str | dt.date, format: _TimeUnitSpec[_NativeTimeUnit], / + ) -> datetime64[dt.datetime]: ... + @overload + def __new__(cls, value: int | bytes | str | dt.date, format: _TimeUnitSpec[_DateUnit], /) -> datetime64[dt.date]: ... + @overload + def __new__(cls, value: bytes | str | dt.date | None, format: _TimeUnitSpec = ..., /) -> Self: ... + + def __class_getitem__(cls, type_arg: type | object, /) -> GenericAlias: ... + + @overload + def __add__(self: datetime64[_AnyDT64Item], x: int | integer | np.bool, /) -> datetime64[_AnyDT64Item]: ... + @overload + def __add__(self: datetime64[None], x: _TD64Like_co, /) -> datetime64[None]: ... + @overload + def __add__(self: datetime64[int], x: timedelta64[int | dt.timedelta], /) -> datetime64[int]: ... + @overload + def __add__(self: datetime64[dt.datetime], x: timedelta64[dt.timedelta], /) -> datetime64[dt.datetime]: ... + @overload + def __add__(self: datetime64[dt.date], x: timedelta64[dt.timedelta], /) -> datetime64[dt.date]: ... + @overload + def __add__(self: datetime64[dt.date], x: timedelta64[int], /) -> datetime64[int]: ... + @overload + def __add__(self, x: datetime64[None], /) -> datetime64[None]: ... + @overload + def __add__(self, x: _TD64Like_co, /) -> datetime64: ... + __radd__ = __add__ + + @overload + def __sub__(self: datetime64[_AnyDT64Item], x: int | integer | np.bool, /) -> datetime64[_AnyDT64Item]: ... + @overload + def __sub__(self: datetime64[_AnyDate], x: _AnyDate, /) -> dt.timedelta: ... + @overload + def __sub__(self: datetime64[None], x: timedelta64, /) -> datetime64[None]: ... + @overload + def __sub__(self: datetime64[None], x: datetime64, /) -> timedelta64[None]: ... + @overload + def __sub__(self: datetime64[int], x: timedelta64, /) -> datetime64[int]: ... + @overload + def __sub__(self: datetime64[int], x: datetime64, /) -> timedelta64[int]: ... + @overload + def __sub__(self: datetime64[dt.datetime], x: timedelta64[int], /) -> datetime64[int]: ... + @overload + def __sub__(self: datetime64[dt.datetime], x: timedelta64[dt.timedelta], /) -> datetime64[dt.datetime]: ... + @overload + def __sub__(self: datetime64[dt.datetime], x: datetime64[int], /) -> timedelta64[int]: ... + @overload + def __sub__(self: datetime64[dt.date], x: timedelta64[int], /) -> datetime64[dt.date | int]: ... + @overload + def __sub__(self: datetime64[dt.date], x: timedelta64[dt.timedelta], /) -> datetime64[dt.date]: ... + @overload + def __sub__(self: datetime64[dt.date], x: datetime64[dt.date], /) -> timedelta64[dt.timedelta]: ... + @overload + def __sub__(self, x: timedelta64[None], /) -> datetime64[None]: ... + @overload + def __sub__(self, x: datetime64[None], /) -> timedelta64[None]: ... + @overload + def __sub__(self, x: _TD64Like_co, /) -> datetime64: ... + @overload + def __sub__(self, x: datetime64, /) -> timedelta64: ... + + # NOTE: mypy gets confused by the non-commutativity of subtraction here + @overload + def __rsub__(self: datetime64[_AnyDT64Item], x: int | integer | np.bool, /) -> datetime64[_AnyDT64Item]: ... + @overload + def __rsub__(self: datetime64[_AnyDate], x: _AnyDate, /) -> dt.timedelta: ... + @overload + def __rsub__(self: datetime64[None], x: datetime64, /) -> timedelta64[None]: ... + @overload + def __rsub__(self: datetime64[int], x: datetime64, /) -> timedelta64[int]: ... + @overload + def __rsub__(self: datetime64[dt.datetime], x: datetime64[int], /) -> timedelta64[int]: ... # type: ignore[misc] + @overload + def __rsub__(self: datetime64[dt.datetime], x: datetime64[dt.date], /) -> timedelta64[dt.timedelta]: ... # type: ignore[misc] + @overload + def __rsub__(self, x: datetime64[None], /) -> timedelta64[None]: ... # type: ignore[misc] + @overload + def __rsub__(self, x: datetime64, /) -> timedelta64: ... # type: ignore[misc] + + @overload + def __lt__(self, other: datetime64, /) -> bool_: ... + @overload + def __lt__(self, other: _ArrayLikeDT64_co | _NestedSequence[_SupportsGT], /) -> NDArray[bool_]: ... + @overload + def __lt__(self, other: _SupportsGT, /) -> bool_: ... + + @overload + def __le__(self, other: datetime64, /) -> bool_: ... + @overload + def __le__(self, other: _ArrayLikeDT64_co | _NestedSequence[_SupportsGE], /) -> NDArray[bool_]: ... + @overload + def __le__(self, other: _SupportsGT, /) -> bool_: ... + + @overload + def __gt__(self, other: datetime64, /) -> bool_: ... + @overload + def __gt__(self, other: _ArrayLikeDT64_co | _NestedSequence[_SupportsLT], /) -> NDArray[bool_]: ... + @overload + def __gt__(self, other: _SupportsGT, /) -> bool_: ... + + @overload + def __ge__(self, other: datetime64, /) -> bool_: ... + @overload + def __ge__(self, other: _ArrayLikeDT64_co | _NestedSequence[_SupportsLE], /) -> NDArray[bool_]: ... + @overload + def __ge__(self, other: _SupportsGT, /) -> bool_: ... + +@final # cannot be subclassed at runtime +class flexible(_RealMixin, generic[_FlexibleItemT_co], Generic[_FlexibleItemT_co]): ... # type: ignore[misc] + +class void(flexible[bytes | tuple[Any, ...]]): # type: ignore[misc] + @overload + def __new__(cls, length_or_data: _IntLike_co | bytes, /, dtype: None = None) -> Self: ... + @overload + def __new__(cls, length_or_data: object, /, dtype: _DTypeLikeVoid) -> Self: ... + + @overload + def __getitem__(self, key: str | SupportsIndex, /) -> Any: ... + @overload + def __getitem__(self, key: list[str], /) -> void: ... + def __setitem__(self, key: str | list[str] | SupportsIndex, value: ArrayLike, /) -> None: ... + + def setfield(self, val: ArrayLike, dtype: DTypeLike, offset: int = ...) -> None: ... + +class character(flexible[_CharacterItemT_co], Generic[_CharacterItemT_co]): # type: ignore[misc] + @abstractmethod + def __new__(cls, value: object = ..., /) -> Self: ... + +# NOTE: Most `np.bytes_` / `np.str_` methods return their builtin `bytes` / `str` counterpart + +class bytes_(character[bytes], bytes): # type: ignore[misc] + @overload + def __new__(cls, value: object = b"", /) -> Self: ... + @overload + def __new__(cls, value: str, /, encoding: str, errors: str = "strict") -> Self: ... + + # + @override + def __hash__(self, /) -> int: ... + + # + def __bytes__(self, /) -> bytes: ... + +class str_(character[str], str): # type: ignore[misc] + @overload + def __new__(cls, value: object = "", /) -> Self: ... + @overload + def __new__(cls, value: bytes, /, encoding: str, errors: str = "strict") -> Self: ... + + # + @override + def __hash__(self, /) -> int: ... + +# See `numpy._typing._ufunc` for more concrete nin-/nout-specific stubs +@final +class ufunc: + __signature__: Final[inspect.Signature] + + @property + def __name__(self) -> LiteralString: ... + @property + def __qualname__(self) -> LiteralString: ... # pyright: ignore[reportIncompatibleVariableOverride] + @property + def __doc__(self) -> str: ... # type: ignore[override] + @property + def nin(self) -> int: ... + @property + def nout(self) -> int: ... + @property + def nargs(self) -> int: ... + @property + def ntypes(self) -> int: ... + @property + def types(self) -> list[LiteralString]: ... + # Broad return type because it has to encompass things like + # + # >>> np.logical_and.identity is True + # True + # >>> np.add.identity is 0 + # True + # >>> np.sin.identity is None + # True + # + # and any user-defined ufuncs. + @property + def identity(self) -> Any: ... + # This is None for ufuncs and a string for gufuncs. + @property + def signature(self) -> LiteralString | None: ... + + def __call__(self, /, *args: Any, **kwargs: Any) -> Any: ... + + # The next four methods will always exist, but they will just + # raise a ValueError ufuncs with that don't accept two input + # arguments and return one output argument. Because of that we + # can't type them very precisely. + def accumulate( + self, + array: ArrayLike, + /, + axis: SupportsIndex = 0, + dtype: DTypeLike | None = None, + out: ndarray | EllipsisType | None = None, + ) -> NDArray[Incomplete]: ... + def reduce( + self, + array: ArrayLike, + /, + axis: _ShapeLike | None = 0, + dtype: DTypeLike | None = None, + out: ndarray | EllipsisType | None = None, + **kwargs: Incomplete, + ) -> Incomplete: ... + def reduceat( + self, + array: ArrayLike, + /, + indices: _ArrayLikeInt_co, + axis: SupportsIndex = 0, + dtype: DTypeLike | None = None, + out: ndarray | EllipsisType | None = None, + ) -> NDArray[Incomplete]: ... + def outer(self, A: ArrayLike, B: ArrayLike, /, **kwargs: Incomplete) -> NDArray[Incomplete]: ... + + # Similarly `at` won't be defined for ufuncs that return multiple + # outputs, so we can't type it very precisely. + def at(self, a: ndarray, indices: _ArrayLikeInt_co, b: ArrayLike | None = None, /) -> None: ... + + # + def resolve_dtypes( + self, + /, + dtypes: tuple[dtype | type | None, ...], + *, + signature: tuple[dtype | None, ...] | None = None, + casting: _CastingKind | None = None, + reduction: builtins.bool = False, + ) -> tuple[dtype, ...]: ... + +# Parameters: `__name__`, `ntypes` and `identity` +absolute: _UFunc_Nin1_Nout1[L["absolute"], L[20], None] +add: _UFunc_Nin2_Nout1[L["add"], L[22], L[0]] +arccos: _UFunc_Nin1_Nout1[L["arccos"], L[8], None] +arccosh: _UFunc_Nin1_Nout1[L["arccosh"], L[8], None] +arcsin: _UFunc_Nin1_Nout1[L["arcsin"], L[8], None] +arcsinh: _UFunc_Nin1_Nout1[L["arcsinh"], L[8], None] +arctan2: _UFunc_Nin2_Nout1[L["arctan2"], L[5], None] +arctan: _UFunc_Nin1_Nout1[L["arctan"], L[8], None] +arctanh: _UFunc_Nin1_Nout1[L["arctanh"], L[8], None] +bitwise_and: _UFunc_Nin2_Nout1[L["bitwise_and"], L[12], L[-1]] +bitwise_count: _UFunc_Nin1_Nout1[L["bitwise_count"], L[11], None] +bitwise_or: _UFunc_Nin2_Nout1[L["bitwise_or"], L[12], L[0]] +bitwise_xor: _UFunc_Nin2_Nout1[L["bitwise_xor"], L[12], L[0]] +cbrt: _UFunc_Nin1_Nout1[L["cbrt"], L[5], None] +ceil: _UFunc_Nin1_Nout1[L["ceil"], L[7], None] +conjugate: _UFunc_Nin1_Nout1[L["conjugate"], L[18], None] +copysign: _UFunc_Nin2_Nout1[L["copysign"], L[4], None] +cos: _UFunc_Nin1_Nout1[L["cos"], L[9], None] +cosh: _UFunc_Nin1_Nout1[L["cosh"], L[8], None] +deg2rad: _UFunc_Nin1_Nout1[L["deg2rad"], L[5], None] +degrees: _UFunc_Nin1_Nout1[L["degrees"], L[5], None] +divide: _UFunc_Nin2_Nout1[L["divide"], L[11], None] +divmod: _UFunc_Nin2_Nout2[L["divmod"], L[15], None] +equal: _UFunc_Nin2_Nout1[L["equal"], L[23], None] +exp2: _UFunc_Nin1_Nout1[L["exp2"], L[8], None] +exp: _UFunc_Nin1_Nout1[L["exp"], L[10], None] +expm1: _UFunc_Nin1_Nout1[L["expm1"], L[8], None] +fabs: _UFunc_Nin1_Nout1[L["fabs"], L[5], None] +float_power: _UFunc_Nin2_Nout1[L["float_power"], L[4], None] +floor: _UFunc_Nin1_Nout1[L["floor"], L[7], None] +floor_divide: _UFunc_Nin2_Nout1[L["floor_divide"], L[21], None] +fmax: _UFunc_Nin2_Nout1[L["fmax"], L[21], None] +fmin: _UFunc_Nin2_Nout1[L["fmin"], L[21], None] +fmod: _UFunc_Nin2_Nout1[L["fmod"], L[15], None] +frexp: _UFunc_Nin1_Nout2[L["frexp"], L[4], None] +gcd: _UFunc_Nin2_Nout1[L["gcd"], L[11], L[0]] +greater: _UFunc_Nin2_Nout1[L["greater"], L[23], None] +greater_equal: _UFunc_Nin2_Nout1[L["greater_equal"], L[23], None] +heaviside: _UFunc_Nin2_Nout1[L["heaviside"], L[4], None] +hypot: _UFunc_Nin2_Nout1[L["hypot"], L[5], L[0]] +invert: _UFunc_Nin1_Nout1[L["invert"], L[12], None] +isfinite: _UFunc_Nin1_Nout1[L["isfinite"], L[20], None] +isinf: _UFunc_Nin1_Nout1[L["isinf"], L[20], None] +isnan: _UFunc_Nin1_Nout1[L["isnan"], L[20], None] +isnat: _UFunc_Nin1_Nout1[L["isnat"], L[2], None] +lcm: _UFunc_Nin2_Nout1[L["lcm"], L[11], None] +ldexp: _UFunc_Nin2_Nout1[L["ldexp"], L[8], None] +left_shift: _UFunc_Nin2_Nout1[L["left_shift"], L[11], None] +less: _UFunc_Nin2_Nout1[L["less"], L[23], None] +less_equal: _UFunc_Nin2_Nout1[L["less_equal"], L[23], None] +log10: _UFunc_Nin1_Nout1[L["log10"], L[8], None] +log1p: _UFunc_Nin1_Nout1[L["log1p"], L[8], None] +log2: _UFunc_Nin1_Nout1[L["log2"], L[8], None] +log: _UFunc_Nin1_Nout1[L["log"], L[10], None] +logaddexp2: _UFunc_Nin2_Nout1[L["logaddexp2"], L[4], float] +logaddexp: _UFunc_Nin2_Nout1[L["logaddexp"], L[4], float] +logical_and: _UFunc_Nin2_Nout1[L["logical_and"], L[20], L[True]] +logical_not: _UFunc_Nin1_Nout1[L["logical_not"], L[20], None] +logical_or: _UFunc_Nin2_Nout1[L["logical_or"], L[20], L[False]] +logical_xor: _UFunc_Nin2_Nout1[L["logical_xor"], L[19], L[False]] +matmul: _GUFunc_Nin2_Nout1[L["matmul"], L[19], None, L["(n?,k),(k,m?)->(n?,m?)"]] +matvec: _GUFunc_Nin2_Nout1[L["matvec"], L[19], None, L["(m,n),(n)->(m)"]] +maximum: _UFunc_Nin2_Nout1[L["maximum"], L[21], None] +minimum: _UFunc_Nin2_Nout1[L["minimum"], L[21], None] +modf: _UFunc_Nin1_Nout2[L["modf"], L[4], None] +multiply: _UFunc_Nin2_Nout1[L["multiply"], L[23], L[1]] +negative: _UFunc_Nin1_Nout1[L["negative"], L[19], None] +nextafter: _UFunc_Nin2_Nout1[L["nextafter"], L[4], None] +not_equal: _UFunc_Nin2_Nout1[L["not_equal"], L[23], None] +positive: _UFunc_Nin1_Nout1[L["positive"], L[19], None] +power: _UFunc_Nin2_Nout1[L["power"], L[18], None] +rad2deg: _UFunc_Nin1_Nout1[L["rad2deg"], L[5], None] +radians: _UFunc_Nin1_Nout1[L["radians"], L[5], None] +reciprocal: _UFunc_Nin1_Nout1[L["reciprocal"], L[18], None] +remainder: _UFunc_Nin2_Nout1[L["remainder"], L[16], None] +right_shift: _UFunc_Nin2_Nout1[L["right_shift"], L[11], None] +rint: _UFunc_Nin1_Nout1[L["rint"], L[10], None] +sign: _UFunc_Nin1_Nout1[L["sign"], L[19], None] +signbit: _UFunc_Nin1_Nout1[L["signbit"], L[4], None] +sin: _UFunc_Nin1_Nout1[L["sin"], L[9], None] +sinh: _UFunc_Nin1_Nout1[L["sinh"], L[8], None] +spacing: _UFunc_Nin1_Nout1[L["spacing"], L[4], None] +sqrt: _UFunc_Nin1_Nout1[L["sqrt"], L[10], None] +square: _UFunc_Nin1_Nout1[L["square"], L[18], None] +subtract: _UFunc_Nin2_Nout1[L["subtract"], L[21], None] +tan: _UFunc_Nin1_Nout1[L["tan"], L[8], None] +tanh: _UFunc_Nin1_Nout1[L["tanh"], L[8], None] +trunc: _UFunc_Nin1_Nout1[L["trunc"], L[7], None] +vecdot: _GUFunc_Nin2_Nout1[L["vecdot"], L[19], None, L["(n),(n)->()"]] +vecmat: _GUFunc_Nin2_Nout1[L["vecmat"], L[19], None, L["(n),(n,m)->(m)"]] + +abs = absolute +acos = arccos +acosh = arccosh +asin = arcsin +asinh = arcsinh +atan = arctan +atanh = arctanh +atan2 = arctan2 +concat = concatenate +bitwise_left_shift = left_shift +bitwise_not = invert +bitwise_invert = invert +bitwise_right_shift = right_shift +conj = conjugate +mod = remainder +permute_dims = transpose +pow = power +true_divide = divide + +# TODO: The type of each `__next__` and `iters` return-type depends +# on the length and dtype of `args`; we can't describe this behavior yet +# as we lack variadics (PEP 646). +@final +class broadcast: + def __new__(cls, *args: ArrayLike) -> broadcast: ... + @property + def index(self) -> int: ... + @property + def iters(self) -> tuple[flatiter[Any], ...]: ... + @property + def nd(self) -> int: ... + @property + def ndim(self) -> int: ... + @property + def numiter(self) -> int: ... + @property + def shape(self) -> _AnyShape: ... + @property + def size(self) -> int: ... + def __next__(self) -> tuple[Any, ...]: ... + def __iter__(self) -> Self: ... + def reset(self) -> None: ... + +@final +class busdaycalendar: + def __init__( + self, + /, + weekmask: str | Sequence[int | bool_ | integer] | _SupportsArray[dtype[bool_ | integer]] = "1111100", + holidays: Sequence[dt.date | datetime64] | _SupportsArray[dtype[datetime64]] | None = None, + ) -> None: ... + @property + def weekmask(self) -> ndarray[tuple[int], dtype[bool_]]: ... + @property + def holidays(self) -> ndarray[tuple[int], dtype[datetime64[dt.date]]]: ... + +@final +class nditer: + @overload + def __init__( + self, + /, + op: ArrayLike, + flags: Sequence[_NDIterFlagsKind] | None = None, + op_flags: Sequence[_NDIterFlagsOp] | None = None, + op_dtypes: DTypeLike | None = None, + order: _OrderKACF = "K", + casting: _CastingKind = "safe", + op_axes: Sequence[SupportsIndex] | None = None, + itershape: _ShapeLike | None = None, + buffersize: SupportsIndex = 0, + ) -> None: ... + @overload + def __init__( + self, + /, + op: Sequence[ArrayLike | None], + flags: Sequence[_NDIterFlagsKind] | None = None, + op_flags: Sequence[Sequence[_NDIterFlagsOp]] | None = None, + op_dtypes: Sequence[DTypeLike | None] | None = None, + order: _OrderKACF = "K", + casting: _CastingKind = "safe", + op_axes: Sequence[Sequence[SupportsIndex]] | None = None, + itershape: _ShapeLike | None = None, + buffersize: SupportsIndex = 0, + ) -> None: ... + + def __enter__(self) -> nditer: ... + def __exit__( + self, + exc_type: type[BaseException] | None, + exc_value: BaseException | None, + traceback: TracebackType | None, + ) -> None: ... + def __iter__(self) -> nditer: ... + def __next__(self) -> tuple[NDArray[Any], ...]: ... + def __len__(self) -> int: ... + def __copy__(self) -> nditer: ... + @overload + def __getitem__(self, index: SupportsIndex) -> NDArray[Any]: ... + @overload + def __getitem__(self, index: slice) -> tuple[NDArray[Any], ...]: ... + def __setitem__(self, index: slice | SupportsIndex, value: ArrayLike) -> None: ... + def close(self) -> None: ... + def copy(self) -> nditer: ... + def debug_print(self) -> None: ... + def enable_external_loop(self) -> None: ... + def iternext(self) -> builtins.bool: ... + def remove_axis(self, i: SupportsIndex, /) -> None: ... + def remove_multi_index(self) -> None: ... + def reset(self) -> None: ... + @property + def dtypes(self) -> tuple[dtype, ...]: ... + @property + def finished(self) -> builtins.bool: ... + @property + def has_delayed_bufalloc(self) -> builtins.bool: ... + @property + def has_index(self) -> builtins.bool: ... + @property + def has_multi_index(self) -> builtins.bool: ... + @property + def index(self) -> int: ... + @property + def iterationneedsapi(self) -> builtins.bool: ... + @property + def iterindex(self) -> int: ... + @property + def iterrange(self) -> tuple[int, ...]: ... + @property + def itersize(self) -> int: ... + @property + def itviews(self) -> tuple[NDArray[Any], ...]: ... + @property + def multi_index(self) -> tuple[int, ...]: ... + @property + def ndim(self) -> int: ... + @property + def nop(self) -> int: ... + @property + def operands(self) -> tuple[NDArray[Any], ...]: ... + @property + def shape(self) -> tuple[int, ...]: ... + @property + def value(self) -> tuple[NDArray[Any], ...]: ... + +class memmap(ndarray[_ShapeT_co, _DTypeT_co]): + __array_priority__: ClassVar[float] + filename: str | None + offset: int + mode: str + @overload + def __new__( + subtype, + filename: StrOrBytesPath | _SupportsFileMethodsRW, + dtype: type[uint8] = ..., + mode: _MemMapModeKind = "r+", + offset: int = 0, + shape: int | tuple[int, ...] | None = None, + order: _OrderKACF = "C", + ) -> memmap[Any, dtype[uint8]]: ... + @overload + def __new__( + subtype, + filename: StrOrBytesPath | _SupportsFileMethodsRW, + dtype: _DTypeLike[_ScalarT], + mode: _MemMapModeKind = "r+", + offset: int = 0, + shape: int | tuple[int, ...] | None = None, + order: _OrderKACF = "C", + ) -> memmap[Any, dtype[_ScalarT]]: ... + @overload + def __new__( + subtype, + filename: StrOrBytesPath | _SupportsFileMethodsRW, + dtype: DTypeLike, + mode: _MemMapModeKind = "r+", + offset: int = 0, + shape: int | tuple[int, ...] | None = None, + order: _OrderKACF = "C", + ) -> memmap[Any, dtype]: ... + def __array_finalize__(self, obj: object) -> None: ... + def __array_wrap__( + self, + array: memmap[_ShapeT_co, _DTypeT_co], # type: ignore[override] + context: tuple[ufunc, tuple[Any, ...], int] | None = None, + return_scalar: builtins.bool = False, + ) -> Any: ... + def flush(self) -> None: ... + +class poly1d: + @property + def variable(self) -> LiteralString: ... + @property + def order(self) -> int: ... + @property + def o(self) -> int: ... + @property + def roots(self) -> NDArray[Any]: ... + @property + def r(self) -> NDArray[Any]: ... + + @property + def coeffs(self) -> NDArray[Any]: ... + @coeffs.setter + def coeffs(self, value: NDArray[Any]) -> None: ... + + @property + def c(self) -> NDArray[Any]: ... + @c.setter + def c(self, value: NDArray[Any]) -> None: ... + + @property + def coef(self) -> NDArray[Any]: ... + @coef.setter + def coef(self, value: NDArray[Any]) -> None: ... + + @property + def coefficients(self) -> NDArray[Any]: ... + @coefficients.setter + def coefficients(self, value: NDArray[Any]) -> None: ... + + __hash__: ClassVar[None] # type: ignore[assignment] # pyright: ignore[reportIncompatibleMethodOverride] + + @overload + def __array__(self, /, t: None = None, copy: builtins.bool | None = None) -> ndarray[tuple[int], dtype]: ... + @overload + def __array__(self, /, t: _DTypeT, copy: builtins.bool | None = None) -> ndarray[tuple[int], _DTypeT]: ... + + @overload + def __call__(self, val: _ScalarLike_co) -> Any: ... + @overload + def __call__(self, val: poly1d) -> poly1d: ... + @overload + def __call__(self, val: ArrayLike) -> NDArray[Any]: ... + + def __init__( + self, + c_or_r: ArrayLike, + r: builtins.bool = False, + variable: str | None = None, + ) -> None: ... + def __len__(self) -> int: ... + def __neg__(self) -> poly1d: ... + def __pos__(self) -> poly1d: ... + def __mul__(self, other: ArrayLike, /) -> poly1d: ... + def __rmul__(self, other: ArrayLike, /) -> poly1d: ... + def __add__(self, other: ArrayLike, /) -> poly1d: ... + def __radd__(self, other: ArrayLike, /) -> poly1d: ... + def __pow__(self, val: _FloatLike_co, /) -> poly1d: ... # Integral floats are accepted + def __sub__(self, other: ArrayLike, /) -> poly1d: ... + def __rsub__(self, other: ArrayLike, /) -> poly1d: ... + def __truediv__(self, other: ArrayLike, /) -> poly1d: ... + def __rtruediv__(self, other: ArrayLike, /) -> poly1d: ... + def __getitem__(self, val: int, /) -> Any: ... + def __setitem__(self, key: int, val: Any, /) -> None: ... + def __iter__(self) -> Iterator[Any]: ... + def deriv(self, m: SupportsInt | SupportsIndex = 1) -> poly1d: ... + def integ( + self, + m: SupportsInt | SupportsIndex = 1, + k: _ArrayLikeComplex_co | _ArrayLikeObject_co | None = 0, + ) -> poly1d: ... + +def from_dlpack( + x: _SupportsDLPack[None], + /, + *, + device: L["cpu"] | None = None, + copy: builtins.bool | None = None, +) -> NDArray[number | np.bool]: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_array_api_info.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_array_api_info.py new file mode 100644 index 0000000000000000000000000000000000000000..41adb835433db946472db6d2814ebe1e45af2cc7 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_array_api_info.py @@ -0,0 +1,346 @@ +""" +Array API Inspection namespace + +This is the namespace for inspection functions as defined by the array API +standard. See +https://data-apis.org/array-api/latest/API_specification/inspection.html for +more details. + +""" +from numpy._core import ( + bool, + complex64, + complex128, + dtype, + float32, + float64, + int8, + int16, + int32, + int64, + intp, + uint8, + uint16, + uint32, + uint64, +) +from numpy._utils import set_module + + +@set_module('numpy') +class __array_namespace_info__: + """ + Get the array API inspection namespace for NumPy. + + The array API inspection namespace defines the following functions: + + - capabilities() + - default_device() + - default_dtypes() + - dtypes() + - devices() + + See + https://data-apis.org/array-api/latest/API_specification/inspection.html + for more details. + + Returns + ------- + info : ModuleType + The array API inspection namespace for NumPy. + + Examples + -------- + >>> info = np.__array_namespace_info__() + >>> info.default_dtypes() + {'real floating': numpy.float64, + 'complex floating': numpy.complex128, + 'integral': numpy.int64, + 'indexing': numpy.int64} + + """ + + def capabilities(self): + """ + Return a dictionary of array API library capabilities. + + The resulting dictionary has the following keys: + + - **"boolean indexing"**: boolean indicating whether an array library + supports boolean indexing. Always ``True`` for NumPy. + + - **"data-dependent shapes"**: boolean indicating whether an array + library supports data-dependent output shapes. Always ``True`` for + NumPy. + + See + https://data-apis.org/array-api/latest/API_specification/generated/array_api.info.capabilities.html + for more details. + + See Also + -------- + __array_namespace_info__.default_device, + __array_namespace_info__.default_dtypes, + __array_namespace_info__.dtypes, + __array_namespace_info__.devices + + Returns + ------- + capabilities : dict + A dictionary of array API library capabilities. + + Examples + -------- + >>> info = np.__array_namespace_info__() + >>> info.capabilities() + {'boolean indexing': True, + 'data-dependent shapes': True, + 'max dimensions': 64} + + """ + return { + "boolean indexing": True, + "data-dependent shapes": True, + "max dimensions": 64, + } + + def default_device(self): + """ + The default device used for new NumPy arrays. + + For NumPy, this always returns ``'cpu'``. + + See Also + -------- + __array_namespace_info__.capabilities, + __array_namespace_info__.default_dtypes, + __array_namespace_info__.dtypes, + __array_namespace_info__.devices + + Returns + ------- + device : str + The default device used for new NumPy arrays. + + Examples + -------- + >>> info = np.__array_namespace_info__() + >>> info.default_device() + 'cpu' + + """ + return "cpu" + + def default_dtypes(self, *, device=None): + """ + The default data types used for new NumPy arrays. + + For NumPy, this always returns the following dictionary: + + - **"real floating"**: ``numpy.float64`` + - **"complex floating"**: ``numpy.complex128`` + - **"integral"**: ``numpy.intp`` + - **"indexing"**: ``numpy.intp`` + + Parameters + ---------- + device : str, optional + The device to get the default data types for. For NumPy, only + ``'cpu'`` is allowed. + + Returns + ------- + dtypes : dict + A dictionary describing the default data types used for new NumPy + arrays. + + See Also + -------- + __array_namespace_info__.capabilities, + __array_namespace_info__.default_device, + __array_namespace_info__.dtypes, + __array_namespace_info__.devices + + Examples + -------- + >>> info = np.__array_namespace_info__() + >>> info.default_dtypes() + {'real floating': numpy.float64, + 'complex floating': numpy.complex128, + 'integral': numpy.int64, + 'indexing': numpy.int64} + + """ + if device not in ["cpu", None]: + raise ValueError( + 'Device not understood. Only "cpu" is allowed, but received:' + f' {device}' + ) + return { + "real floating": dtype(float64), + "complex floating": dtype(complex128), + "integral": dtype(intp), + "indexing": dtype(intp), + } + + def dtypes(self, *, device=None, kind=None): + """ + The array API data types supported by NumPy. + + Note that this function only returns data types that are defined by + the array API. + + Parameters + ---------- + device : str, optional + The device to get the data types for. For NumPy, only ``'cpu'`` is + allowed. + kind : str or tuple of str, optional + The kind of data types to return. If ``None``, all data types are + returned. If a string, only data types of that kind are returned. + If a tuple, a dictionary containing the union of the given kinds + is returned. The following kinds are supported: + + - ``'bool'``: boolean data types (i.e., ``bool``). + - ``'signed integer'``: signed integer data types (i.e., ``int8``, + ``int16``, ``int32``, ``int64``). + - ``'unsigned integer'``: unsigned integer data types (i.e., + ``uint8``, ``uint16``, ``uint32``, ``uint64``). + - ``'integral'``: integer data types. Shorthand for ``('signed + integer', 'unsigned integer')``. + - ``'real floating'``: real-valued floating-point data types + (i.e., ``float32``, ``float64``). + - ``'complex floating'``: complex floating-point data types (i.e., + ``complex64``, ``complex128``). + - ``'numeric'``: numeric data types. Shorthand for ``('integral', + 'real floating', 'complex floating')``. + + Returns + ------- + dtypes : dict + A dictionary mapping the names of data types to the corresponding + NumPy data types. + + See Also + -------- + __array_namespace_info__.capabilities, + __array_namespace_info__.default_device, + __array_namespace_info__.default_dtypes, + __array_namespace_info__.devices + + Examples + -------- + >>> info = np.__array_namespace_info__() + >>> info.dtypes(kind='signed integer') + {'int8': numpy.int8, + 'int16': numpy.int16, + 'int32': numpy.int32, + 'int64': numpy.int64} + + """ + if device not in ["cpu", None]: + raise ValueError( + 'Device not understood. Only "cpu" is allowed, but received:' + f' {device}' + ) + if kind is None: + return { + "bool": dtype(bool), + "int8": dtype(int8), + "int16": dtype(int16), + "int32": dtype(int32), + "int64": dtype(int64), + "uint8": dtype(uint8), + "uint16": dtype(uint16), + "uint32": dtype(uint32), + "uint64": dtype(uint64), + "float32": dtype(float32), + "float64": dtype(float64), + "complex64": dtype(complex64), + "complex128": dtype(complex128), + } + if kind == "bool": + return {"bool": bool} + if kind == "signed integer": + return { + "int8": dtype(int8), + "int16": dtype(int16), + "int32": dtype(int32), + "int64": dtype(int64), + } + if kind == "unsigned integer": + return { + "uint8": dtype(uint8), + "uint16": dtype(uint16), + "uint32": dtype(uint32), + "uint64": dtype(uint64), + } + if kind == "integral": + return { + "int8": dtype(int8), + "int16": dtype(int16), + "int32": dtype(int32), + "int64": dtype(int64), + "uint8": dtype(uint8), + "uint16": dtype(uint16), + "uint32": dtype(uint32), + "uint64": dtype(uint64), + } + if kind == "real floating": + return { + "float32": dtype(float32), + "float64": dtype(float64), + } + if kind == "complex floating": + return { + "complex64": dtype(complex64), + "complex128": dtype(complex128), + } + if kind == "numeric": + return { + "int8": dtype(int8), + "int16": dtype(int16), + "int32": dtype(int32), + "int64": dtype(int64), + "uint8": dtype(uint8), + "uint16": dtype(uint16), + "uint32": dtype(uint32), + "uint64": dtype(uint64), + "float32": dtype(float32), + "float64": dtype(float64), + "complex64": dtype(complex64), + "complex128": dtype(complex128), + } + if isinstance(kind, tuple): + res = {} + for k in kind: + res.update(self.dtypes(kind=k)) + return res + raise ValueError(f"unsupported kind: {kind!r}") + + def devices(self): + """ + The devices supported by NumPy. + + For NumPy, this always returns ``['cpu']``. + + Returns + ------- + devices : list of str + The devices supported by NumPy. + + See Also + -------- + __array_namespace_info__.capabilities, + __array_namespace_info__.default_device, + __array_namespace_info__.default_dtypes, + __array_namespace_info__.dtypes + + Examples + -------- + >>> info = np.__array_namespace_info__() + >>> info.devices() + ['cpu'] + + """ + return ["cpu"] diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_array_api_info.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_array_api_info.pyi new file mode 100644 index 0000000000000000000000000000000000000000..396125143e922a0d4c7a6c84b5ab61b6cf7b5319 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_array_api_info.pyi @@ -0,0 +1,206 @@ +from typing import ( + Literal, + Never, + TypeAlias, + TypedDict, + TypeVar, + final, + overload, + type_check_only, +) + +import numpy as np + +_Device: TypeAlias = Literal["cpu"] +_DeviceLike: TypeAlias = _Device | None + +_Capabilities = TypedDict( + "_Capabilities", + { + "boolean indexing": Literal[True], + "data-dependent shapes": Literal[True], + }, +) + +_DefaultDTypes = TypedDict( + "_DefaultDTypes", + { + "real floating": np.dtype[np.float64], + "complex floating": np.dtype[np.complex128], + "integral": np.dtype[np.intp], + "indexing": np.dtype[np.intp], + }, +) + +_KindBool: TypeAlias = Literal["bool"] +_KindInt: TypeAlias = Literal["signed integer"] +_KindUInt: TypeAlias = Literal["unsigned integer"] +_KindInteger: TypeAlias = Literal["integral"] +_KindFloat: TypeAlias = Literal["real floating"] +_KindComplex: TypeAlias = Literal["complex floating"] +_KindNumber: TypeAlias = Literal["numeric"] +_Kind: TypeAlias = ( + _KindBool + | _KindInt + | _KindUInt + | _KindInteger + | _KindFloat + | _KindComplex + | _KindNumber +) + +_T1 = TypeVar("_T1") +_T2 = TypeVar("_T2") +_T3 = TypeVar("_T3") +_Permute1: TypeAlias = _T1 | tuple[_T1] +_Permute2: TypeAlias = tuple[_T1, _T2] | tuple[_T2, _T1] +_Permute3: TypeAlias = ( + tuple[_T1, _T2, _T3] | tuple[_T1, _T3, _T2] + | tuple[_T2, _T1, _T3] | tuple[_T2, _T3, _T1] + | tuple[_T3, _T1, _T2] | tuple[_T3, _T2, _T1] +) + +@type_check_only +class _DTypesBool(TypedDict): + bool: np.dtype[np.bool] + +@type_check_only +class _DTypesInt(TypedDict): + int8: np.dtype[np.int8] + int16: np.dtype[np.int16] + int32: np.dtype[np.int32] + int64: np.dtype[np.int64] + +@type_check_only +class _DTypesUInt(TypedDict): + uint8: np.dtype[np.uint8] + uint16: np.dtype[np.uint16] + uint32: np.dtype[np.uint32] + uint64: np.dtype[np.uint64] + +@type_check_only +class _DTypesInteger(_DTypesInt, _DTypesUInt): ... + +@type_check_only +class _DTypesFloat(TypedDict): + float32: np.dtype[np.float32] + float64: np.dtype[np.float64] + +@type_check_only +class _DTypesComplex(TypedDict): + complex64: np.dtype[np.complex64] + complex128: np.dtype[np.complex128] + +@type_check_only +class _DTypesNumber(_DTypesInteger, _DTypesFloat, _DTypesComplex): ... + +@type_check_only +class _DTypes(_DTypesBool, _DTypesNumber): ... + +@type_check_only +class _DTypesUnion(TypedDict, total=False): + bool: np.dtype[np.bool] + int8: np.dtype[np.int8] + int16: np.dtype[np.int16] + int32: np.dtype[np.int32] + int64: np.dtype[np.int64] + uint8: np.dtype[np.uint8] + uint16: np.dtype[np.uint16] + uint32: np.dtype[np.uint32] + uint64: np.dtype[np.uint64] + float32: np.dtype[np.float32] + float64: np.dtype[np.float64] + complex64: np.dtype[np.complex64] + complex128: np.dtype[np.complex128] + +_EmptyDict: TypeAlias = dict[Never, Never] + +@final +class __array_namespace_info__: + __module__: Literal["numpy"] = "numpy" + + def capabilities(self) -> _Capabilities: ... + def default_device(self) -> _Device: ... + def default_dtypes( + self, + *, + device: _DeviceLike = None, + ) -> _DefaultDTypes: ... + def devices(self) -> list[_Device]: ... + + @overload + def dtypes( + self, + *, + device: _DeviceLike = None, + kind: None = None, + ) -> _DTypes: ... + @overload + def dtypes( + self, + *, + device: _DeviceLike = None, + kind: _Permute1[_KindBool], + ) -> _DTypesBool: ... + @overload + def dtypes( + self, + *, + device: _DeviceLike = None, + kind: _Permute1[_KindInt], + ) -> _DTypesInt: ... + @overload + def dtypes( + self, + *, + device: _DeviceLike = None, + kind: _Permute1[_KindUInt], + ) -> _DTypesUInt: ... + @overload + def dtypes( + self, + *, + device: _DeviceLike = None, + kind: _Permute1[_KindFloat], + ) -> _DTypesFloat: ... + @overload + def dtypes( + self, + *, + device: _DeviceLike = None, + kind: _Permute1[_KindComplex], + ) -> _DTypesComplex: ... + @overload + def dtypes( + self, + *, + device: _DeviceLike = None, + kind: ( + _Permute1[_KindInteger] + | _Permute2[_KindInt, _KindUInt] + ), + ) -> _DTypesInteger: ... + @overload + def dtypes( + self, + *, + device: _DeviceLike = None, + kind: ( + _Permute1[_KindNumber] + | _Permute3[_KindInteger, _KindFloat, _KindComplex] + ), + ) -> _DTypesNumber: ... + @overload + def dtypes( + self, + *, + device: _DeviceLike = None, + kind: tuple[()], + ) -> _EmptyDict: ... + @overload + def dtypes( + self, + *, + device: _DeviceLike = None, + kind: tuple[_Kind, ...], + ) -> _DTypesUnion: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_configtool.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_configtool.py new file mode 100644 index 0000000000000000000000000000000000000000..db7831c339518ba3a2a939eaa0006eded43ad129 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_configtool.py @@ -0,0 +1,39 @@ +import argparse +import sys +from pathlib import Path + +from .lib._utils_impl import get_include +from .version import __version__ + + +def main() -> None: + parser = argparse.ArgumentParser() + parser.add_argument( + "--version", + action="version", + version=__version__, + help="Print the version and exit.", + ) + parser.add_argument( + "--cflags", + action="store_true", + help="Compile flag needed when using the NumPy headers.", + ) + parser.add_argument( + "--pkgconfigdir", + action="store_true", + help=("Print the pkgconfig directory in which `numpy.pc` is stored " + "(useful for setting $PKG_CONFIG_PATH)."), + ) + args = parser.parse_args() + if not sys.argv[1:]: + parser.print_help() + if args.cflags: + print("-I" + get_include()) + if args.pkgconfigdir: + _path = Path(get_include()) / '..' / 'lib' / 'pkgconfig' + print(_path.resolve()) + + +if __name__ == "__main__": + main() diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_configtool.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_configtool.pyi new file mode 100644 index 0000000000000000000000000000000000000000..7e7363e797f3f5a33f66efd0349814c562e349e6 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_configtool.pyi @@ -0,0 +1 @@ +def main() -> None: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/.___init__.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/.___init__.py new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and 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All functions and objects +are available in the main ``numpy`` namespace - use that instead. + +""" + +import os + +from numpy.version import version as __version__ + +# disables OpenBLAS affinity setting of the main thread that limits +# python threads or processes to one core +env_added = [] +for envkey in ['OPENBLAS_MAIN_FREE']: + if envkey not in os.environ: + # Note: using `putenv` (and `unsetenv` further down) instead of updating + # `os.environ` on purpose to avoid a race condition, see gh-30627. + os.putenv(envkey, '1') + env_added.append(envkey) + +try: + from . import multiarray +except ImportError as exc: + import sys + + # Bypass for the module re-initialization opt-out + if exc.msg == "cannot load module more than once per process": + raise + + # Basically always, the problem should be that the C module is wrong/missing... + if ( + isinstance(exc, ModuleNotFoundError) + and exc.name == "numpy._core._multiarray_umath" + ): + import sys + candidates = [] + for path in __path__: + candidates.extend( + f for f in os.listdir(path) if f.startswith("_multiarray_umath")) + if len(candidates) == 0: + bad_c_module_info = ( + "We found no compiled module, did NumPy build successfully?\n") + else: + candidate_str = '\n * '.join(candidates) + # cache_tag is documented to be possibly None, so just use name if it is + # this guesses at cache_tag being the same as the extension module scheme + tag = sys.implementation.cache_tag or sys.implementation.name + bad_c_module_info = ( + f"The following compiled module files exist, but seem incompatible\n" + f"with with either python '{tag}' or the " + f"platform '{sys.platform}':\n\n * {candidate_str}\n" + ) + else: + bad_c_module_info = "" + + major, minor, *_ = sys.version_info + msg = f""" + +IMPORTANT: PLEASE READ THIS FOR ADVICE ON HOW TO SOLVE THIS ISSUE! + +Importing the numpy C-extensions failed. This error can happen for +many reasons, often due to issues with your setup or how NumPy was +installed. +{bad_c_module_info} +We have compiled some common reasons and troubleshooting tips at: + + https://numpy.org/devdocs/user/troubleshooting-importerror.html + +Please note and check the following: + + * The Python version is: Python {major}.{minor} from "{sys.executable}" + * The NumPy version is: "{__version__}" + +and make sure that they are the versions you expect. + +Please carefully study the information and documentation linked above. +This is unlikely to be a NumPy issue but will be caused by a bad install +or environment on your machine. + +Original error was: {exc} +""" + + raise ImportError(msg) from exc +finally: + for envkey in env_added: + os.unsetenv(envkey) +del envkey +del env_added +del os + +from . import umath + +# Check that multiarray,umath are pure python modules wrapping +# _multiarray_umath and not either of the old c-extension modules +if not (hasattr(multiarray, '_multiarray_umath') and + hasattr(umath, '_multiarray_umath')): + import sys + path = sys.modules['numpy'].__path__ + msg = ("Something is wrong with the numpy installation. " + "While importing we detected an older version of " + "numpy in {}. One method of fixing this is to repeatedly uninstall " + "numpy until none is found, then reinstall this version.") + raise ImportError(msg.format(path)) + +from . import numerictypes as nt +from .numerictypes import sctypeDict, sctypes + +multiarray.set_typeDict(nt.sctypeDict) +from . import einsumfunc, fromnumeric, function_base, getlimits, numeric, shape_base +from .einsumfunc import * +from .fromnumeric import * +from .function_base import * +from .getlimits import * + +# Note: module name memmap is overwritten by a class with same name +from .memmap import * +from .numeric import * +from .records import recarray, record +from .shape_base import * + +del nt + +# do this after everything else, to minimize the chance of this misleadingly +# appearing in an import-time traceback +# add these for module-freeze analysis (like PyInstaller) +from . import ( + _add_newdocs, + _add_newdocs_scalars, + _dtype, + _dtype_ctypes, + _internal, + _methods, +) +from .numeric import absolute as abs + +acos = numeric.arccos +acosh = numeric.arccosh +asin = numeric.arcsin +asinh = numeric.arcsinh +atan = numeric.arctan +atanh = numeric.arctanh +atan2 = numeric.arctan2 +concat = numeric.concatenate +bitwise_left_shift = numeric.left_shift +bitwise_invert = numeric.invert +bitwise_right_shift = numeric.right_shift +permute_dims = numeric.transpose +pow = numeric.power + +__all__ = [ + "abs", "acos", "acosh", "asin", "asinh", "atan", "atanh", "atan2", + "bitwise_invert", "bitwise_left_shift", "bitwise_right_shift", "concat", + "pow", "permute_dims", "memmap", "sctypeDict", "record", "recarray" +] +__all__ += numeric.__all__ +__all__ += function_base.__all__ +__all__ += getlimits.__all__ +__all__ += shape_base.__all__ +__all__ += einsumfunc.__all__ + + +def _ufunc_reduce(func): + # Report the `__name__`. pickle will try to find the module. Note that + # pickle supports for this `__name__` to be a `__qualname__`. It may + # make sense to add a `__qualname__` to ufuncs, to allow this more + # explicitly (Numba has ufuncs as attributes). + # See also: https://github.com/dask/distributed/issues/3450 + return func.__name__ + + +def _DType_reconstruct(scalar_type): + # This is a work-around to pickle type(np.dtype(np.float64)), etc. + # and it should eventually be replaced with a better solution, e.g. when + # DTypes become HeapTypes. + return type(dtype(scalar_type)) + + +def _DType_reduce(DType): + # As types/classes, most DTypes can simply be pickled by their name: + if not DType._legacy or DType.__module__ == "numpy.dtypes": + return DType.__name__ + + # However, user defined legacy dtypes (like rational) do not end up in + # `numpy.dtypes` as module and do not have a public class at all. + # For these, we pickle them by reconstructing them from the scalar type: + scalar_type = DType.type + return _DType_reconstruct, (scalar_type,) + + +import copyreg + +copyreg.pickle(ufunc, _ufunc_reduce) +copyreg.pickle(type(dtype), _DType_reduce, _DType_reconstruct) + +# Unclutter namespace (must keep _*_reconstruct for unpickling) +del copyreg, _ufunc_reduce, _DType_reduce + +from numpy._pytesttester import PytestTester + +test = PytestTester(__name__) +del PytestTester diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/__init__.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/__init__.pyi new file mode 100644 index 0000000000000000000000000000000000000000..ce5427bbfcd97a93ae04c9d3a48177f3ae258ca2 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/__init__.pyi @@ -0,0 +1,666 @@ +# keep in sync with https://github.com/numpy/numtype/blob/main/src/numpy-stubs/_core/__init__.pyi + +from ._asarray import require +from ._ufunc_config import ( + errstate, + getbufsize, + geterr, + geterrcall, + setbufsize, + seterr, + seterrcall, +) +from .arrayprint import ( + array2string, + array_repr, + array_str, + format_float_positional, + format_float_scientific, + get_printoptions, + printoptions, + set_printoptions, +) +from .einsumfunc import einsum, einsum_path +from .fromnumeric import ( + all, + amax, + amin, + any, + argmax, + argmin, + argpartition, + argsort, + around, + choose, + clip, + compress, + cumprod, + cumsum, + cumulative_prod, + cumulative_sum, + diagonal, + matrix_transpose, + max, + mean, + min, + ndim, + nonzero, + partition, + prod, + ptp, + put, + ravel, + repeat, + reshape, + resize, + round, + searchsorted, + shape, + size, + sort, + squeeze, + std, + sum, + swapaxes, + take, + trace, + transpose, + transpose as permute_dims, + var, +) +from .function_base import geomspace, linspace, logspace +from .getlimits import finfo, iinfo +from .memmap import memmap +from .numeric import ( + False_, + True_, + allclose, + arange, + argwhere, + array, + array_equal, + array_equiv, + asanyarray, + asarray, + ascontiguousarray, + asfortranarray, + astype, + base_repr, + binary_repr, + bitwise_not, + broadcast, + can_cast, + concatenate, + concatenate as concat, + convolve, + copyto, + correlate, + count_nonzero, + cross, + dot, + dtype, + empty, + empty_like, + flatiter, + flatnonzero, + from_dlpack, + frombuffer, + fromfile, + fromfunction, + fromiter, + fromstring, + full, + full_like, + identity, + indices, + inf, + inner, + isclose, + isfortran, + isscalar, + lexsort, + little_endian, + matmul, + may_share_memory, + min_scalar_type, + moveaxis, + nan, + ndarray, + nditer, + nested_iters, + newaxis, + ones, + ones_like, + outer, + promote_types, + putmask, + result_type, + roll, + rollaxis, + shares_memory, + tensordot, + ufunc, + vdot, + vecdot, + where, + zeros, + zeros_like, +) +from .numerictypes import ( + ScalarType, + bool, + bool_, + busday_count, + busday_offset, + busdaycalendar, + byte, + bytes_, + cdouble, + character, + clongdouble, + complex64, + complex128, + complex192, + complex256, + complexfloating, + csingle, + datetime64, + datetime_as_string, + datetime_data, + double, + flexible, + float16, + float32, + float64, + float96, + float128, + floating, + generic, + half, + inexact, + int8, + int16, + int32, + int64, + int_, + intc, + integer, + intp, + is_busday, + isdtype, + issubdtype, + long, + longdouble, + longlong, + number, + object_, + sctypeDict, + short, + signedinteger, + single, + str_, + timedelta64, + typecodes, + ubyte, + uint, + uint8, + uint16, + uint32, + uint64, + uintc, + uintp, + ulong, + ulonglong, + unsignedinteger, + ushort, + void, +) +from .records import recarray, record +from .shape_base import ( + atleast_1d, + atleast_2d, + atleast_3d, + block, + hstack, + stack, + unstack, + vstack, +) +from .umath import ( + absolute, + absolute as abs, + add, + arccos, + arccos as acos, + arccosh, + arccosh as acosh, + arcsin, + arcsin as asin, + arcsinh, + arcsinh as asinh, + arctan, + arctan as atan, + arctan2, + arctan2 as atan2, + arctanh, + arctanh as atanh, + bitwise_and, + bitwise_count, + bitwise_or, + bitwise_xor, + cbrt, + ceil, + conj, + conjugate, + copysign, + cos, + cosh, + deg2rad, + degrees, + divide, + divmod, + e, + equal, + euler_gamma, + exp, + exp2, + expm1, + fabs, + float_power, + floor, + floor_divide, + fmax, + fmin, + fmod, + frexp, + frompyfunc, + gcd, + greater, + greater_equal, + heaviside, + hypot, + invert, + invert as bitwise_invert, + isfinite, + isinf, + isnan, + isnat, + lcm, + ldexp, + left_shift, + left_shift as bitwise_left_shift, + less, + less_equal, + log, + log1p, + log2, + log10, + logaddexp, + logaddexp2, + logical_and, + logical_not, + logical_or, + logical_xor, + matvec, + maximum, + minimum, + mod, + modf, + multiply, + negative, + nextafter, + not_equal, + pi, + positive, + power, + power as pow, + rad2deg, + radians, + reciprocal, + remainder, + right_shift, + right_shift as bitwise_right_shift, + rint, + sign, + signbit, + sin, + sinh, + spacing, + sqrt, + square, + subtract, + tan, + tanh, + true_divide, + trunc, + vecmat, +) + +__all__ = [ + "False_", + "ScalarType", + "True_", + "abs", + "absolute", + "acos", + "acosh", + "add", + "all", + "allclose", + "amax", + "amin", + "any", + "arange", + "arccos", + "arccosh", + "arcsin", + "arcsinh", + "arctan", + "arctan2", + "arctanh", + "argmax", + "argmin", + "argpartition", + "argsort", + "argwhere", + "around", + "array", + "array2string", + "array_equal", + "array_equiv", + "array_repr", + "array_str", + "asanyarray", + "asarray", + "ascontiguousarray", + "asfortranarray", + "asin", + "asinh", + "astype", + "atan", + "atan2", + "atanh", + "atleast_1d", + "atleast_2d", + "atleast_3d", + "base_repr", + "binary_repr", + "bitwise_and", + "bitwise_count", + "bitwise_invert", + "bitwise_left_shift", + "bitwise_not", + "bitwise_or", + "bitwise_right_shift", + "bitwise_xor", + "block", + "bool", + "bool_", + "broadcast", + "busday_count", + "busday_offset", + "busdaycalendar", + "byte", + "bytes_", + "can_cast", + "cbrt", + "cdouble", + "ceil", + "character", + "choose", + "clip", + "clongdouble", + "complex64", + "complex128", + "complex192", + "complex256", + "complexfloating", + "compress", + "concat", + "concatenate", + "conj", + "conjugate", + "convolve", + "copysign", + "copyto", + "correlate", + "cos", + "cosh", + "count_nonzero", + "cross", + "csingle", + "cumprod", + "cumsum", + "cumulative_prod", + "cumulative_sum", + "datetime64", + "datetime_as_string", + "datetime_data", + "deg2rad", + "degrees", + "diagonal", + "divide", + "divmod", + "dot", + "double", + "dtype", + "e", + "einsum", + "einsum_path", + "empty", + "empty_like", + "equal", + "errstate", + "euler_gamma", + "exp", + "exp2", + "expm1", + "fabs", + "finfo", + "flatiter", + "flatnonzero", + "flexible", + "float16", + "float32", + "float64", + "float96", + "float128", + "float_power", + "floating", + "floor", + "floor_divide", + "fmax", + "fmin", + "fmod", + "format_float_positional", + "format_float_scientific", + "frexp", + "from_dlpack", + "frombuffer", + "fromfile", + "fromfunction", + "fromiter", + "frompyfunc", + "fromstring", + "full", + "full_like", + "gcd", + "generic", + "geomspace", + "get_printoptions", + "getbufsize", + "geterr", + "geterrcall", + "greater", + "greater_equal", + "half", + "heaviside", + "hstack", + "hypot", + "identity", + "iinfo", + "indices", + "inexact", + "inf", + "inner", + "int8", + "int16", + "int32", + "int64", + "int_", + "intc", + "integer", + "intp", + "invert", + "is_busday", + "isclose", + "isdtype", + "isfinite", + "isfortran", + "isinf", + "isnan", + "isnat", + "isscalar", + "issubdtype", + "lcm", + "ldexp", + "left_shift", + "less", + "less_equal", + "lexsort", + "linspace", + "little_endian", + "log", + "log1p", + "log2", + "log10", + "logaddexp", + "logaddexp2", + "logical_and", + "logical_not", + "logical_or", + "logical_xor", + "logspace", + "long", + "longdouble", + "longlong", + "matmul", + "matrix_transpose", + "matvec", + "max", + "maximum", + "may_share_memory", + "mean", + "memmap", + "min", + "min_scalar_type", + "minimum", + "mod", + "modf", + "moveaxis", + "multiply", + "nan", + "ndarray", + "ndim", + "nditer", + "negative", + "nested_iters", + "newaxis", + "nextafter", + "nonzero", + "not_equal", + "number", + "object_", + "ones", + "ones_like", + "outer", + "partition", + "permute_dims", + "pi", + "positive", + "pow", + "power", + "printoptions", + "prod", + "promote_types", + "ptp", + "put", + "putmask", + "rad2deg", + "radians", + "ravel", + "recarray", + "reciprocal", + "record", + "remainder", + "repeat", + "require", + "reshape", + "resize", + "result_type", + "right_shift", + "rint", + "roll", + "rollaxis", + "round", + "sctypeDict", + "searchsorted", + "set_printoptions", + "setbufsize", + "seterr", + "seterrcall", + "shape", + "shares_memory", + "short", + "sign", + "signbit", + "signedinteger", + "sin", + "single", + "sinh", + "size", + "sort", + "spacing", + "sqrt", + "square", + "squeeze", + "stack", + "std", + "str_", + "subtract", + "sum", + "swapaxes", + "take", + "tan", + "tanh", + "tensordot", + "timedelta64", + "trace", + "transpose", + "true_divide", + "trunc", + "typecodes", + "ubyte", + "ufunc", + "uint", + "uint8", + "uint16", + "uint32", + "uint64", + "uintc", + "uintp", + "ulong", + "ulonglong", + "unsignedinteger", + "unstack", + "ushort", + "var", + "vdot", + "vecdot", + "vecmat", + "void", + "vstack", + "where", + "zeros", + "zeros_like", +] diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_add_newdocs.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_add_newdocs.py new file mode 100644 index 0000000000000000000000000000000000000000..178bcc9f813dc0293cdae94cf3a4b5ea5199ff2e --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_add_newdocs.py @@ -0,0 +1,7161 @@ +""" +This is only meant to add docs to objects defined in C-extension modules. +The purpose is to allow easier editing of the docstrings without +requiring a re-compile. + +NOTE: Many of the methods of ndarray have corresponding functions. + If you update these docstrings, please keep also the ones in + _core/fromnumeric.py, matrixlib/defmatrix.py up-to-date. + +""" + +import textwrap + +from numpy._core.function_base import add_newdoc +from numpy._core.overrides import get_array_function_like_doc # noqa: F401 + +############################################################################### +# +# flatiter +# +# flatiter needs a toplevel description +# +############################################################################### + +add_newdoc('numpy._core', 'flatiter', + """ + Flat iterator object to iterate over arrays. + + A `flatiter` iterator is returned by ``x.flat`` for any array `x`. + It allows iterating over the array as if it were a 1-D array, + either in a for-loop or by calling its `next` method. + + Iteration is done in row-major, C-style order (the last + index varying the fastest). The iterator can also be indexed using + basic slicing or advanced indexing. + + See Also + -------- + ndarray.flat : Return a flat iterator over an array. + ndarray.flatten : Returns a flattened copy of an array. + + Notes + ----- + A `flatiter` iterator can not be constructed directly from Python code + by calling the `flatiter` constructor. + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(6).reshape(2, 3) + >>> fl = x.flat + >>> type(fl) + + >>> for item in fl: + ... print(item) + ... + 0 + 1 + 2 + 3 + 4 + 5 + + >>> fl[2:4] + array([2, 3]) + + """) + +# flatiter attributes + +add_newdoc('numpy._core', 'flatiter', ('base', + """ + A reference to the array that is iterated over. + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(5) + >>> fl = x.flat + >>> fl.base is x + True + + """)) + +add_newdoc('numpy._core', 'flatiter', ('coords', + """ + An N-dimensional tuple of current coordinates. + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(6).reshape(2, 3) + >>> fl = x.flat + >>> fl.coords + (0, 0) + >>> next(fl) + 0 + >>> fl.coords + (0, 1) + + """)) + +add_newdoc('numpy._core', 'flatiter', ('index', + """ + Current flat index into the array. + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(6).reshape(2, 3) + >>> fl = x.flat + >>> fl.index + 0 + >>> next(fl) + 0 + >>> fl.index + 1 + + """)) + +# flatiter methods + +add_newdoc('numpy._core', 'flatiter', ('__array__', + """ + __array__($self, dtype=None, /, *, copy=None) + -- + + flat.__array__([dtype], *, copy=None) + + Get array from iterator + + """)) + +add_newdoc('numpy._core', 'flatiter', ('copy', + """ + copy($self, /) + -- + + flat.copy() + + Get a copy of the iterator as a 1-D array. + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(6).reshape(2, 3) + >>> x + array([[0, 1, 2], + [3, 4, 5]]) + >>> fl = x.flat + >>> fl.copy() + array([0, 1, 2, 3, 4, 5]) + + """)) + + +############################################################################### +# +# nditer +# +############################################################################### + +add_newdoc('numpy._core', 'nditer', + """ + nditer( + op, + flags=None, + op_flags=None, + op_dtypes=None, + order='K', + casting='safe', + op_axes=None, + itershape=None, + buffersize=0, + ) + -- + + nditer(op, flags=None, op_flags=None, op_dtypes=None, order='K', + casting='safe', op_axes=None, itershape=None, buffersize=0) + + Efficient multi-dimensional iterator object to iterate over arrays. + To get started using this object, see the + :ref:`introductory guide to array iteration `. + + Parameters + ---------- + op : ndarray or sequence of array_like + The array(s) to iterate over. + flags : sequence of str, optional + Flags to control the behavior of the iterator. + + * ``buffered`` enables buffering when required. + * ``c_index`` causes a C-order index to be tracked. + * ``f_index`` causes a Fortran-order index to be tracked. + * ``multi_index`` causes a multi-index, or a tuple of indices + with one per iteration dimension, to be tracked. + * ``common_dtype`` causes all the operands to be converted to + a common data type, with copying or buffering as necessary. + * ``copy_if_overlap`` causes the iterator to determine if read + operands have overlap with write operands, and make temporary + copies as necessary to avoid overlap. False positives (needless + copying) are possible in some cases. + * ``delay_bufalloc`` delays allocation of the buffers until + a reset() call is made. Allows ``allocate`` operands to + be initialized before their values are copied into the buffers. + * ``external_loop`` causes the ``values`` given to be + one-dimensional arrays with multiple values instead of + zero-dimensional arrays. + * ``grow_inner`` allows the ``value`` array sizes to be made + larger than the buffer size when both ``buffered`` and + ``external_loop`` is used. + * ``ranged`` allows the iterator to be restricted to a sub-range + of the iterindex values. + * ``refs_ok`` enables iteration of reference types, such as + object arrays. + * ``reduce_ok`` enables iteration of ``readwrite`` operands + which are broadcasted, also known as reduction operands. + * ``zerosize_ok`` allows `itersize` to be zero. + op_flags : list of list of str, optional + This is a list of flags for each operand. At minimum, one of + ``readonly``, ``readwrite``, or ``writeonly`` must be specified. + + * ``readonly`` indicates the operand will only be read from. + * ``readwrite`` indicates the operand will be read from and written to. + * ``writeonly`` indicates the operand will only be written to. + * ``no_broadcast`` prevents the operand from being broadcasted. + * ``contig`` forces the operand data to be contiguous. + * ``aligned`` forces the operand data to be aligned. + * ``nbo`` forces the operand data to be in native byte order. + * ``copy`` allows a temporary read-only copy if required. + * ``updateifcopy`` allows a temporary read-write copy if required. + * ``allocate`` causes the array to be allocated if it is None + in the ``op`` parameter. + * ``no_subtype`` prevents an ``allocate`` operand from using a subtype. + * ``arraymask`` indicates that this operand is the mask to use + for selecting elements when writing to operands with the + 'writemasked' flag set. The iterator does not enforce this, + but when writing from a buffer back to the array, it only + copies those elements indicated by this mask. + * ``writemasked`` indicates that only elements where the chosen + ``arraymask`` operand is True will be written to. + * ``overlap_assume_elementwise`` can be used to mark operands that are + accessed only in the iterator order, to allow less conservative + copying when ``copy_if_overlap`` is present. + op_dtypes : dtype or tuple of dtype(s), optional + The required data type(s) of the operands. If copying or buffering + is enabled, the data will be converted to/from their original types. + order : {'C', 'F', 'A', 'K'}, optional + Controls the iteration order. 'C' means C order, 'F' means + Fortran order, 'A' means 'F' order if all the arrays are Fortran + contiguous, 'C' order otherwise, and 'K' means as close to the + order the array elements appear in memory as possible. This also + affects the element memory order of ``allocate`` operands, as they + are allocated to be compatible with iteration order. + Default is 'K'. + casting : {'no', 'equiv', 'safe', 'same_kind', 'unsafe'}, optional + Controls what kind of data casting may occur when making a copy + or buffering. Setting this to 'unsafe' is not recommended, + as it can adversely affect accumulations. + + * 'no' means the data types should not be cast at all. + * 'equiv' means only byte-order changes are allowed. + * 'safe' means only casts which can preserve values are allowed. + * 'same_kind' means only safe casts or casts within a kind, + like float64 to float32, are allowed. + * 'unsafe' means any data conversions may be done. + op_axes : list of list of ints, optional + If provided, is a list of ints or None for each operands. + The list of axes for an operand is a mapping from the dimensions + of the iterator to the dimensions of the operand. A value of + -1 can be placed for entries, causing that dimension to be + treated as `newaxis`. + itershape : tuple of ints, optional + The desired shape of the iterator. This allows ``allocate`` operands + with a dimension mapped by op_axes not corresponding to a dimension + of a different operand to get a value not equal to 1 for that + dimension. + buffersize : int, optional + When buffering is enabled, controls the size of the temporary + buffers. Set to 0 for the default value. + + Attributes + ---------- + dtypes : tuple of dtype(s) + The data types of the values provided in `value`. This may be + different from the operand data types if buffering is enabled. + Valid only before the iterator is closed. + finished : bool + Whether the iteration over the operands is finished or not. + has_delayed_bufalloc : bool + If True, the iterator was created with the ``delay_bufalloc`` flag, + and no reset() function was called on it yet. + has_index : bool + If True, the iterator was created with either the ``c_index`` or + the ``f_index`` flag, and the property `index` can be used to + retrieve it. + has_multi_index : bool + If True, the iterator was created with the ``multi_index`` flag, + and the property `multi_index` can be used to retrieve it. + index + When the ``c_index`` or ``f_index`` flag was used, this property + provides access to the index. Raises a ValueError if accessed + and ``has_index`` is False. + iterationneedsapi : bool + Whether iteration requires access to the Python API, for example + if one of the operands is an object array. + iterindex : int + An index which matches the order of iteration. + itersize : int + Size of the iterator. + itviews + Structured view(s) of `operands` in memory, matching the reordered + and optimized iterator access pattern. Valid only before the iterator + is closed. + multi_index + When the ``multi_index`` flag was used, this property + provides access to the index. Raises a ValueError if accessed + accessed and ``has_multi_index`` is False. + ndim : int + The dimensions of the iterator. + nop : int + The number of iterator operands. + operands : tuple of operand(s) + The array(s) to be iterated over. Valid only before the iterator is + closed. + shape : tuple of ints + Shape tuple, the shape of the iterator. + value + Value of ``operands`` at current iteration. Normally, this is a + tuple of array scalars, but if the flag ``external_loop`` is used, + it is a tuple of one dimensional arrays. + + Notes + ----- + `nditer` supersedes `flatiter`. The iterator implementation behind + `nditer` is also exposed by the NumPy C API. + + The Python exposure supplies two iteration interfaces, one which follows + the Python iterator protocol, and another which mirrors the C-style + do-while pattern. The native Python approach is better in most cases, but + if you need the coordinates or index of an iterator, use the C-style pattern. + + Examples + -------- + Here is how we might write an ``iter_add`` function, using the + Python iterator protocol: + + >>> import numpy as np + + >>> def iter_add_py(x, y, out=None): + ... addop = np.add + ... it = np.nditer([x, y, out], [], + ... [['readonly'], ['readonly'], ['writeonly','allocate']]) + ... with it: + ... for (a, b, c) in it: + ... addop(a, b, out=c) + ... return it.operands[2] + + Here is the same function, but following the C-style pattern: + + >>> def iter_add(x, y, out=None): + ... addop = np.add + ... it = np.nditer([x, y, out], [], + ... [['readonly'], ['readonly'], ['writeonly','allocate']]) + ... with it: + ... while not it.finished: + ... addop(it[0], it[1], out=it[2]) + ... it.iternext() + ... return it.operands[2] + + Here is an example outer product function: + + >>> def outer_it(x, y, out=None): + ... mulop = np.multiply + ... it = np.nditer([x, y, out], ['external_loop'], + ... [['readonly'], ['readonly'], ['writeonly', 'allocate']], + ... op_axes=[list(range(x.ndim)) + [-1] * y.ndim, + ... [-1] * x.ndim + list(range(y.ndim)), + ... None]) + ... with it: + ... for (a, b, c) in it: + ... mulop(a, b, out=c) + ... return it.operands[2] + + >>> a = np.arange(2)+1 + >>> b = np.arange(3)+1 + >>> outer_it(a,b) + array([[1, 2, 3], + [2, 4, 6]]) + + Here is an example function which operates like a "lambda" ufunc: + + >>> def luf(lamdaexpr, *args, **kwargs): + ... '''luf(lambdaexpr, op1, ..., opn, out=None, order='K', casting='safe', buffersize=0)''' + ... nargs = len(args) + ... op = (kwargs.get('out',None),) + args + ... it = np.nditer(op, ['buffered','external_loop'], + ... [['writeonly','allocate','no_broadcast']] + + ... [['readonly','nbo','aligned']]*nargs, + ... order=kwargs.get('order','K'), + ... casting=kwargs.get('casting','safe'), + ... buffersize=kwargs.get('buffersize',0)) + ... while not it.finished: + ... it[0] = lamdaexpr(*it[1:]) + ... it.iternext() + ... return it.operands[0] + + >>> a = np.arange(5) + >>> b = np.ones(5) + >>> luf(lambda i,j:i*i + j/2, a, b) + array([ 0.5, 1.5, 4.5, 9.5, 16.5]) + + If operand flags ``"writeonly"`` or ``"readwrite"`` are used the + operands may be views into the original data with the + `WRITEBACKIFCOPY` flag. In this case `nditer` must be used as a + context manager or the `nditer.close` method must be called before + using the result. The temporary data will be written back to the + original data when the :meth:`~object.__exit__` function is called + but not before: + + >>> a = np.arange(6, dtype='i4')[::-2] + >>> with np.nditer(a, [], + ... [['writeonly', 'updateifcopy']], + ... casting='unsafe', + ... op_dtypes=[np.dtype('f4')]) as i: + ... x = i.operands[0] + ... x[:] = [-1, -2, -3] + ... # a still unchanged here + >>> a, x + (array([-1, -2, -3], dtype=int32), array([-1., -2., -3.], dtype=float32)) + + It is important to note that once the iterator is exited, dangling + references (like `x` in the example) may or may not share data with + the original data `a`. If writeback semantics were active, i.e. if + `x.base.flags.writebackifcopy` is `True`, then exiting the iterator + will sever the connection between `x` and `a`, writing to `x` will + no longer write to `a`. If writeback semantics are not active, then + `x.data` will still point at some part of `a.data`, and writing to + one will affect the other. + + Context management and the `close` method appeared in version 1.15.0. + + """) + +# nditer attributes + +add_newdoc('numpy._core', 'nditer', ('operands', + """ + operands[`Slice`] + + The array(s) to be iterated over. Valid only before the iterator is closed. + """)) + +# nditer methods + +add_newdoc('numpy._core', 'nditer', ('copy', + """ + copy($self, /) + -- + + copy() + + Get a copy of the iterator in its current state. + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(10) + >>> y = x + 1 + >>> it = np.nditer([x, y]) + >>> next(it) + (array(0), array(1)) + >>> it2 = it.copy() + >>> next(it2) + (array(1), array(2)) + + """)) + +add_newdoc('numpy._core', 'nditer', ('debug_print', + """ + debug_print($self, /) + -- + + debug_print() + + Print the current state of the `nditer` instance and debug info to stdout. + + """)) + +add_newdoc('numpy._core', 'nditer', ('enable_external_loop', + """ + enable_external_loop($self, /) + -- + + enable_external_loop() + + When the "external_loop" was not used during construction, but + is desired, this modifies the iterator to behave as if the flag + was specified. + + """)) + +add_newdoc('numpy._core', 'nditer', ('iternext', + """ + iternext($self, /) + -- + + iternext() + + Check whether iterations are left, and perform a single internal iteration + without returning the result. Used in the C-style pattern do-while + pattern. For an example, see `nditer`. + + Returns + ------- + iternext : bool + Whether or not there are iterations left. + + """)) + +add_newdoc('numpy._core', 'nditer', ('remove_axis', + """ + remove_axis($self, i, /) + -- + + remove_axis(i, /) + + Removes axis `i` from the iterator. Requires that the flag "multi_index" + be enabled. + + """)) + +add_newdoc('numpy._core', 'nditer', ('remove_multi_index', + """ + remove_multi_index($self, /) + -- + + remove_multi_index() + + When the "multi_index" flag was specified, this removes it, allowing + the internal iteration structure to be optimized further. + + """)) + +add_newdoc('numpy._core', 'nditer', ('reset', + """ + reset($self, /) + -- + + reset() + + Reset the iterator to its initial state. + + """)) + +add_newdoc('numpy._core', 'nditer', ('close', + """ + close($self, /) + -- + + close() + + Resolve all writeback semantics in writeable operands. + + See Also + -------- + :ref:`nditer-context-manager` + + """)) + +# nested_iters + +add_newdoc('numpy._core', 'nested_iters', + """ + nested_iters( + op, + axes, + flags=None, + op_flags=None, + op_dtypes=None, + order='K', + casting='safe', + buffersize=0, + ) + -- + + nested_iters(op, axes, flags=None, op_flags=None, op_dtypes=None, + order='K', casting='safe', buffersize=0) + + Create nditers for use in nested loops + + Create a tuple of `nditer` objects which iterate in nested loops over + different axes of the op argument. The first iterator is used in the + outermost loop, the last in the innermost loop. Advancing one will + change the subsequent iterators to point at its new element. + + Parameters + ---------- + op : ndarray or sequence of array_like + The array(s) to iterate over. + axes : list of list of int + Each item is used as an "op_axes" argument to an nditer + flags, op_flags, op_dtypes, order, casting, buffersize (optional) + See `nditer` parameters of the same name + + Returns + ------- + iters : tuple of nditer + An nditer for each item in `axes`, outermost first + + See Also + -------- + nditer + + Examples + -------- + + Basic usage. Note how y is the "flattened" version of + [a[:, 0, :], a[:, 1, 0], a[:, 2, :]] since we specified + the first iter's axes as [1] + + >>> import numpy as np + >>> a = np.arange(12).reshape(2, 3, 2) + >>> i, j = np.nested_iters(a, [[1], [0, 2]], flags=["multi_index"]) + >>> for x in i: + ... print(i.multi_index) + ... for y in j: + ... print('', j.multi_index, y) + (0,) + (0, 0) 0 + (0, 1) 1 + (1, 0) 6 + (1, 1) 7 + (1,) + (0, 0) 2 + (0, 1) 3 + (1, 0) 8 + (1, 1) 9 + (2,) + (0, 0) 4 + (0, 1) 5 + (1, 0) 10 + (1, 1) 11 + + """) + +############################################################################### +# +# broadcast +# +############################################################################### + +add_newdoc('numpy._core', 'broadcast', + """ + broadcast(*arrays) + -- + + Produce an object that mimics broadcasting. + + Parameters + ---------- + in1, in2, ... : array_like + Input parameters. + + Returns + ------- + b : broadcast object + Broadcast the input parameters against one another, and + return an object that encapsulates the result. + Amongst others, it has ``shape`` and ``nd`` properties, and + may be used as an iterator. + + See Also + -------- + broadcast_arrays + broadcast_to + broadcast_shapes + + Examples + -------- + + Manually adding two vectors, using broadcasting: + + >>> import numpy as np + >>> x = np.array([[1], [2], [3]]) + >>> y = np.array([4, 5, 6]) + >>> b = np.broadcast(x, y) + + >>> out = np.empty(b.shape) + >>> out.flat = [u+v for (u,v) in b] + >>> out + array([[5., 6., 7.], + [6., 7., 8.], + [7., 8., 9.]]) + + Compare against built-in broadcasting: + + >>> x + y + array([[5, 6, 7], + [6, 7, 8], + [7, 8, 9]]) + + """) + +# attributes + +add_newdoc('numpy._core', 'broadcast', ('index', + """ + current index in broadcasted result + + Examples + -------- + + >>> import numpy as np + >>> x = np.array([[1], [2], [3]]) + >>> y = np.array([4, 5, 6]) + >>> b = np.broadcast(x, y) + >>> b.index + 0 + >>> next(b), next(b), next(b) + ((1, 4), (1, 5), (1, 6)) + >>> b.index + 3 + + """)) + +add_newdoc('numpy._core', 'broadcast', ('iters', + """ + tuple of iterators along ``self``'s "components." + + Returns a tuple of `numpy.flatiter` objects, one for each "component" + of ``self``. + + See Also + -------- + numpy.flatiter + + Examples + -------- + + >>> import numpy as np + >>> x = np.array([1, 2, 3]) + >>> y = np.array([[4], [5], [6]]) + >>> b = np.broadcast(x, y) + >>> row, col = b.iters + >>> next(row), next(col) + (1, 4) + + """)) + +add_newdoc('numpy._core', 'broadcast', ('ndim', + """ + Number of dimensions of broadcasted result. Alias for `nd`. + + Examples + -------- + >>> import numpy as np + >>> x = np.array([1, 2, 3]) + >>> y = np.array([[4], [5], [6]]) + >>> b = np.broadcast(x, y) + >>> b.ndim + 2 + + """)) + +add_newdoc('numpy._core', 'broadcast', ('nd', + """ + Number of dimensions of broadcasted result. For code intended for NumPy + 1.12.0 and later the more consistent `ndim` is preferred. + + Examples + -------- + >>> import numpy as np + >>> x = np.array([1, 2, 3]) + >>> y = np.array([[4], [5], [6]]) + >>> b = np.broadcast(x, y) + >>> b.nd + 2 + + """)) + +add_newdoc('numpy._core', 'broadcast', ('numiter', + """ + Number of iterators possessed by the broadcasted result. + + Examples + -------- + >>> import numpy as np + >>> x = np.array([1, 2, 3]) + >>> y = np.array([[4], [5], [6]]) + >>> b = np.broadcast(x, y) + >>> b.numiter + 2 + + """)) + +add_newdoc('numpy._core', 'broadcast', ('shape', + """ + Shape of broadcasted result. + + Examples + -------- + >>> import numpy as np + >>> x = np.array([1, 2, 3]) + >>> y = np.array([[4], [5], [6]]) + >>> b = np.broadcast(x, y) + >>> b.shape + (3, 3) + + """)) + +add_newdoc('numpy._core', 'broadcast', ('size', + """ + Total size of broadcasted result. + + Examples + -------- + >>> import numpy as np + >>> x = np.array([1, 2, 3]) + >>> y = np.array([[4], [5], [6]]) + >>> b = np.broadcast(x, y) + >>> b.size + 9 + + """)) + +# methods + +add_newdoc('numpy._core', 'broadcast', ('reset', + """ + reset($self, /) + -- + + reset() + + Reset the broadcasted result's iterator(s). + + Parameters + ---------- + None + + Returns + ------- + None + + Examples + -------- + >>> import numpy as np + >>> x = np.array([1, 2, 3]) + >>> y = np.array([[4], [5], [6]]) + >>> b = np.broadcast(x, y) + >>> b.index + 0 + >>> next(b), next(b), next(b) + ((1, 4), (2, 4), (3, 4)) + >>> b.index + 3 + >>> b.reset() + >>> b.index + 0 + + """)) + +############################################################################### +# +# numpy functions +# +############################################################################### + +add_newdoc('numpy._core.multiarray', 'array', + """ + array( + object, + dtype=None, + *, + copy=True, + order='K', + subok=False, + ndmin=0, + ndmax=0, + like=None, + ) + -- + + array(object, dtype=None, *, copy=True, order='K', subok=False, ndmin=0, + ndmax=0, like=None) + + Create an array. + + Parameters + ---------- + object : array_like + An array, any object exposing the array interface, an object whose + ``__array__`` method returns an array, or any (nested) sequence. + If object is a scalar, a 0-dimensional array containing object is + returned. + dtype : data-type, optional + The desired data-type for the array. If not given, NumPy will try to use + a default ``dtype`` that can represent the values (by applying promotion + rules when necessary.) + copy : bool, optional + If ``True`` (default), then the array data is copied. If ``None``, + a copy will only be made if ``__array__`` returns a copy, if obj is + a nested sequence, or if a copy is needed to satisfy any of the other + requirements (``dtype``, ``order``, etc.). Note that any copy of + the data is shallow, i.e., for arrays with object dtype, the new + array will point to the same objects. See Examples for `ndarray.copy`. + For ``False`` it raises a ``ValueError`` if a copy cannot be avoided. + Default: ``True``. + order : {'K', 'A', 'C', 'F'}, optional + Specify the memory layout of the array. If object is not an array, the + newly created array will be in C order (row major) unless 'F' is + specified, in which case it will be in Fortran order (column major). + If object is an array the following holds. + + ===== ========= =================================================== + order no copy copy=True + ===== ========= =================================================== + 'K' unchanged F & C order preserved, otherwise most similar order + 'A' unchanged F order if input is F and not C, otherwise C order + 'C' C order C order + 'F' F order F order + ===== ========= =================================================== + + When ``copy=None`` and a copy is made for other reasons, the result is + the same as if ``copy=True``, with some exceptions for 'A', see the + Notes section. The default order is 'K'. + subok : bool, optional + If True, then sub-classes will be passed-through, otherwise + the returned array will be forced to be a base-class array (default). + ndmin : int, optional + Specifies the minimum number of dimensions that the resulting + array should have. Ones will be prepended to the shape as + needed to meet this requirement. + ndmax : int, optional + Specifies the maximum number of dimensions to create when inferring + shape from nested sequences. By default (ndmax=0), NumPy recurses + through all nesting levels (up to the compile-time constant + ``NPY_MAXDIMS``). + Setting ``ndmax`` stops recursion at the specified depth, preserving + deeper nested structures as objects instead of promoting them to + higher-dimensional arrays. In this case, ``dtype=object`` is required. + + .. versionadded:: 2.4.0 + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + Returns + ------- + out : ndarray + An array object satisfying the specified requirements. + + See Also + -------- + empty_like : Return an empty array with shape and type of input. + ones_like : Return an array of ones with shape and type of input. + zeros_like : Return an array of zeros with shape and type of input. + full_like : Return a new array with shape of input filled with value. + empty : Return a new uninitialized array. + ones : Return a new array setting values to one. + zeros : Return a new array setting values to zero. + full : Return a new array of given shape filled with value. + copy : Return an array copy of the given object. + + + Notes + ----- + When order is 'A' and ``object`` is an array in neither 'C' nor 'F' order, + and a copy is forced by a change in dtype, then the order of the result is + not necessarily 'C' as expected. This is likely a bug. + + Examples + -------- + >>> import numpy as np + >>> np.array([1, 2, 3]) + array([1, 2, 3]) + + Upcasting: + + >>> np.array([1, 2, 3.0]) + array([ 1., 2., 3.]) + + More than one dimension: + + >>> np.array([[1, 2], [3, 4]]) + array([[1, 2], + [3, 4]]) + + Minimum dimensions 2: + + >>> np.array([1, 2, 3], ndmin=2) + array([[1, 2, 3]]) + + Type provided: + + >>> np.array([1, 2, 3], dtype=complex) + array([ 1.+0.j, 2.+0.j, 3.+0.j]) + + Data-type consisting of more than one element: + + >>> x = np.array([(1,2),(3,4)],dtype=[('a','>> x['a'] + array([1, 3], dtype=int32) + + Creating an array from sub-classes: + + >>> np.array(np.asmatrix('1 2; 3 4')) + array([[1, 2], + [3, 4]]) + + >>> np.array(np.asmatrix('1 2; 3 4'), subok=True) + matrix([[1, 2], + [3, 4]]) + + Limiting the maximum dimensions with ``ndmax``: + + >>> a = np.array([[1, 2], [3, 4]], dtype=object, ndmax=2) + >>> a + array([[1, 2], + [3, 4]], dtype=object) + >>> a.shape + (2, 2) + + >>> b = np.array([[1, 2], [3, 4]], dtype=object, ndmax=1) + >>> b + array([list([1, 2]), list([3, 4])], dtype=object) + >>> b.shape + (2,) + + """) + +add_newdoc('numpy._core.multiarray', 'asarray', + """ + asarray(a, dtype=None, order=None, *, device=None, copy=None, like=None) + -- + + asarray(a, dtype=None, order=None, *, device=None, copy=None, like=None) + + Convert the input to an array. + + Parameters + ---------- + a : array_like + Input data, in any form that can be converted to an array. This + includes lists, lists of tuples, tuples, tuples of tuples, tuples + of lists and ndarrays. + dtype : data-type, optional + By default, the data-type is inferred from the input data. + order : {'C', 'F', 'A', 'K'}, optional + The memory layout of the output. + 'C' gives a row-major layout (C-style), + 'F' gives a column-major layout (Fortran-style). + 'C' and 'F' will copy if needed to ensure the output format. + 'A' (any) is equivalent to 'F' if input a is non-contiguous or Fortran-contiguous, otherwise, it is equivalent to 'C'. + Unlike 'C' or 'F', 'A' does not ensure that the result is contiguous. + 'K' (keep) is the default and preserves the input order for the output. + device : str, optional + The device on which to place the created array. Default: ``None``. + For Array-API interoperability only, so must be ``"cpu"`` if passed. + + .. versionadded:: 2.0.0 + copy : bool, optional + If ``True``, then the object is copied. If ``None`` then the object is + copied only if needed, i.e. if ``__array__`` returns a copy, if obj + is a nested sequence, or if a copy is needed to satisfy any of + the other requirements (``dtype``, ``order``, etc.). + For ``False`` it raises a ``ValueError`` if a copy cannot be avoided. + Default: ``None``. + + .. versionadded:: 2.0.0 + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + Returns + ------- + out : ndarray + Array interpretation of ``a``. No copy is performed if the input + is already an ndarray with matching dtype and order. If ``a`` is a + subclass of ndarray, a base class ndarray is returned. + + See Also + -------- + asanyarray : Similar function which passes through subclasses. + ascontiguousarray : Convert input to a contiguous array. + asfortranarray : Convert input to an ndarray with column-major memory order. + asarray_chkfinite : Similar function which checks input for NaNs and Infs. + fromiter : Create an array from an iterator. + fromfunction : Construct an array by executing a function on grid positions. + + Examples + -------- + Convert a list into an array: + + >>> a = [1, 2] + >>> import numpy as np + >>> np.asarray(a) + array([1, 2]) + + Existing arrays are not copied: + + >>> a = np.array([1, 2]) + >>> np.asarray(a) is a + True + + If `dtype` is set, array is copied only if dtype does not match: + + >>> a = np.array([1, 2], dtype=np.float32) + >>> np.shares_memory(np.asarray(a, dtype=np.float32), a) + True + >>> np.shares_memory(np.asarray(a, dtype=np.float64), a) + False + + Contrary to `asanyarray`, ndarray subclasses are not passed through: + + >>> issubclass(np.recarray, np.ndarray) + True + >>> a = np.array([(1., 2), (3., 4)], dtype='f4,i4').view(np.recarray) + >>> np.asarray(a) is a + False + >>> np.asanyarray(a) is a + True + + """) + +add_newdoc('numpy._core.multiarray', 'asanyarray', + """ + asanyarray(a, dtype=None, order=None, *, device=None, copy=None, like=None) + -- + + asanyarray(a, dtype=None, order=None, *, device=None, copy=None, like=None) + + Convert the input to an ndarray, but pass ndarray subclasses through. + + Parameters + ---------- + a : array_like + Input data, in any form that can be converted to an array. This + includes scalars, lists, lists of tuples, tuples, tuples of tuples, + tuples of lists, and ndarrays. + dtype : data-type, optional + By default, the data-type is inferred from the input data. + order : {'C', 'F', 'A', 'K'}, optional + The memory layout of the output. + 'C' gives a row-major layout (C-style), + 'F' gives a column-major layout (Fortran-style). + 'C' and 'F' will copy if needed to ensure the output format. + 'A' (any) is equivalent to 'F' if input a is non-contiguous or Fortran-contiguous, otherwise, it is equivalent to 'C'. + Unlike 'C' or 'F', 'A' does not ensure that the result is contiguous. + 'K' (keep) preserves the input order for the output. + 'C' is the default. + device : str, optional + The device on which to place the created array. Default: ``None``. + For Array-API interoperability only, so must be ``"cpu"`` if passed. + + .. versionadded:: 2.1.0 + + copy : bool, optional + If ``True``, then the object is copied. If ``None`` then the object is + copied only if needed, i.e. if ``__array__`` returns a copy, if obj + is a nested sequence, or if a copy is needed to satisfy any of + the other requirements (``dtype``, ``order``, etc.). + For ``False`` it raises a ``ValueError`` if a copy cannot be avoided. + Default: ``None``. + + .. versionadded:: 2.1.0 + + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + Returns + ------- + out : ndarray or an ndarray subclass + Array interpretation of `a`. If `a` is an ndarray or a subclass + of ndarray, it is returned as-is and no copy is performed. + + See Also + -------- + asarray : Similar function which always returns ndarrays. + ascontiguousarray : Convert input to a contiguous array. + asfortranarray : Convert input to an ndarray with column-major memory order. + asarray_chkfinite : Similar function which checks input for NaNs and Infs. + fromiter : Create an array from an iterator. + fromfunction : Construct an array by executing a function on grid positions. + + Examples + -------- + Convert a list into an array: + + >>> a = [1, 2] + >>> import numpy as np + >>> np.asanyarray(a) + array([1, 2]) + + Instances of `ndarray` subclasses are passed through as-is: + + >>> a = np.array([(1., 2), (3., 4)], dtype='f4,i4').view(np.recarray) + >>> np.asanyarray(a) is a + True + + """) + +add_newdoc('numpy._core.multiarray', 'ascontiguousarray', + """ + ascontiguousarray(a, dtype=None, *, like=None) + -- + + ascontiguousarray(a, dtype=None, *, like=None) + + Return a contiguous array (ndim >= 1) in memory (C order). + + Parameters + ---------- + a : array_like + Input array. + dtype : str or dtype object, optional + Data-type of returned array. + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + Returns + ------- + out : ndarray + Contiguous array of same shape and content as `a`, with type `dtype` + if specified. + + See Also + -------- + asfortranarray : Convert input to an ndarray with column-major memory order. + require : Return an ndarray that satisfies requirements. + ndarray.flags : Information about the memory layout of the array. + + Examples + -------- + Starting with a Fortran-contiguous array: + + >>> import numpy as np + >>> x = np.ones((2, 3), order='F') + >>> x.flags['F_CONTIGUOUS'] + True + + Calling ``ascontiguousarray`` makes a C-contiguous copy: + + >>> y = np.ascontiguousarray(x) + >>> y.flags['C_CONTIGUOUS'] + True + >>> np.may_share_memory(x, y) + False + + Now, starting with a C-contiguous array: + + >>> x = np.ones((2, 3), order='C') + >>> x.flags['C_CONTIGUOUS'] + True + + Then, calling ``ascontiguousarray`` returns the same object: + + >>> y = np.ascontiguousarray(x) + >>> x is y + True + + Note: This function returns an array with at least one-dimension (1-d) + so it will not preserve 0-d arrays. + + """) + +add_newdoc('numpy._core.multiarray', 'asfortranarray', + """ + asfortranarray(a, dtype=None, *, like=None) + -- + + asfortranarray(a, dtype=None, *, like=None) + + Return an array (ndim >= 1) laid out in Fortran order in memory. + + Parameters + ---------- + a : array_like + Input array. + dtype : str or dtype object, optional + By default, the data-type is inferred from the input data. + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + Returns + ------- + out : ndarray + The input `a` in Fortran, or column-major, order. + + See Also + -------- + ascontiguousarray : Convert input to a contiguous (C order) array. + asanyarray : Convert input to an ndarray with either row or + column-major memory order. + require : Return an ndarray that satisfies requirements. + ndarray.flags : Information about the memory layout of the array. + + Examples + -------- + Starting with a C-contiguous array: + + >>> import numpy as np + >>> x = np.ones((2, 3), order='C') + >>> x.flags['C_CONTIGUOUS'] + True + + Calling ``asfortranarray`` makes a Fortran-contiguous copy: + + >>> y = np.asfortranarray(x) + >>> y.flags['F_CONTIGUOUS'] + True + >>> np.may_share_memory(x, y) + False + + Now, starting with a Fortran-contiguous array: + + >>> x = np.ones((2, 3), order='F') + >>> x.flags['F_CONTIGUOUS'] + True + + Then, calling ``asfortranarray`` returns the same object: + + >>> y = np.asfortranarray(x) + >>> x is y + True + + Note: This function returns an array with at least one-dimension (1-d) + so it will not preserve 0-d arrays. + + """) + +add_newdoc('numpy._core.multiarray', 'empty', + """ + empty(shape, dtype=None, order='C', *, device=None, like=None) + -- + + empty(shape, dtype=None, order='C', *, device=None, like=None) + + Return a new array of given shape and type, without initializing entries. + + Parameters + ---------- + shape : int or tuple of int + Shape of the empty array, e.g., ``(2, 3)`` or ``2``. + dtype : data-type, optional + Desired output data-type for the array, e.g, `numpy.int8`. Default is + `numpy.float64`. + order : {'C', 'F'}, optional, default: 'C' + Whether to store multi-dimensional data in row-major + (C-style) or column-major (Fortran-style) order in memory. + device : str, optional + The device on which to place the created array. Default: ``None``. + For Array-API interoperability only, so must be ``"cpu"`` if passed. + + .. versionadded:: 2.0.0 + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + Returns + ------- + out : ndarray + Array of uninitialized (arbitrary) data of the given shape, dtype, and + order. Object arrays will be initialized to None. + + See Also + -------- + empty_like : Return an empty array with shape and type of input. + ones : Return a new array setting values to one. + zeros : Return a new array setting values to zero. + full : Return a new array of given shape filled with value. + + Notes + ----- + Unlike other array creation functions (e.g. `zeros`, `ones`, `full`), + `empty` does not initialize the values of the array, and may therefore be + marginally faster. However, the values stored in the newly allocated array + are arbitrary. For reproducible behavior, be sure to set each element of + the array before reading. + + Examples + -------- + >>> import numpy as np + >>> np.empty([2, 2]) + array([[ -9.74499359e+001, 6.69583040e-309], + [ 2.13182611e-314, 3.06959433e-309]]) #uninitialized + + >>> np.empty([2, 2], dtype=int) + array([[-1073741821, -1067949133], + [ 496041986, 19249760]]) #uninitialized + + """) + +add_newdoc('numpy._core.multiarray', 'scalar', + """ + scalar(dtype, obj) + + Return a new scalar array of the given type initialized with obj. + + This function is meant mainly for pickle support. `dtype` must be a + valid data-type descriptor. If `dtype` corresponds to an object + descriptor, then `obj` can be any object, otherwise `obj` must be a + string. If `obj` is not given, it will be interpreted as None for object + type and as zeros for all other types. + + """) # sufficient null bytes for all number dtypes + +add_newdoc('numpy._core.multiarray', 'zeros', + """ + zeros(shape, dtype=None, order='C', *, device=None, like=None) + -- + + zeros(shape, dtype=None, order='C', *, device=None, like=None) + + Return a new array of given shape and type, filled with zeros. + + Parameters + ---------- + shape : int or tuple of ints + Shape of the new array, e.g., ``(2, 3)`` or ``2``. + dtype : data-type, optional + The desired data-type for the array, e.g., `numpy.int8`. Default is + `numpy.float64`. + order : {'C', 'F'}, optional, default: 'C' + Whether to store multi-dimensional data in row-major + (C-style) or column-major (Fortran-style) order in memory. + device : str, optional + The device on which to place the created array. Default: ``None``. + For Array-API interoperability only, so must be ``"cpu"`` if passed. + + .. versionadded:: 2.0.0 + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + Returns + ------- + out : ndarray + Array of zeros with the given shape, dtype, and order. + + See Also + -------- + zeros_like : Return an array of zeros with shape and type of input. + empty : Return a new uninitialized array. + ones : Return a new array setting values to one. + full : Return a new array of given shape filled with value. + + Examples + -------- + >>> import numpy as np + >>> np.zeros(5) + array([ 0., 0., 0., 0., 0.]) + + >>> np.zeros((5,), dtype=int) + array([0, 0, 0, 0, 0]) + + >>> np.zeros((2, 1)) + array([[ 0.], + [ 0.]]) + + >>> s = (2,2) + >>> np.zeros(s) + array([[ 0., 0.], + [ 0., 0.]]) + + >>> np.zeros((2,), dtype=[('x', 'i4'), ('y', 'i4')]) # custom dtype + array([(0, 0), (0, 0)], + dtype=[('x', '>> import numpy as np + >>> np.fromstring('1 2', dtype=int, sep=' ') + array([1, 2]) + >>> np.fromstring('1, 2', dtype=int, sep=',') + array([1, 2]) + + """) + +add_newdoc('numpy._core.multiarray', 'compare_chararrays', + """ + compare_chararrays(a1, a2, cmp, rstrip) + -- + + compare_chararrays(a1, a2, cmp, rstrip) + + Performs element-wise comparison of two string arrays using the + comparison operator specified by `cmp`. + + Parameters + ---------- + a1, a2 : array_like + Arrays to be compared. + cmp : {"<", "<=", "==", ">=", ">", "!="} + Type of comparison. + rstrip : bool + If True, the spaces at the end of strings are removed before the comparison. + + Returns + ------- + out : ndarray + The output array of type `numpy.bool` with the same shape as `a1` and `a2`. + + Raises + ------ + ValueError + If `cmp` is not valid. + TypeError + If at least one of `a1` or `a2` is a non-string array + + Examples + -------- + >>> import numpy as np + >>> a = np.array(["a", "b", "cde"]) + >>> b = np.array(["a", "a", "dec"]) + >>> np.char.compare_chararrays(a, b, ">", True) + array([False, True, False]) + + """) + +add_newdoc('numpy._core.multiarray', 'fromiter', + """ + fromiter(iter, dtype, count=-1, *, like=None) + -- + + fromiter(iter, dtype, count=-1, *, like=None) + + Create a new 1-dimensional array from an iterable object. + + Parameters + ---------- + iter : iterable object + An iterable object providing data for the array. + dtype : data-type + The data-type of the returned array. + + .. versionchanged:: 1.23 + Object and subarray dtypes are now supported (note that the final + result is not 1-D for a subarray dtype). + + count : int, optional + The number of items to read from *iterable*. The default is -1, + which means all data is read. + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + Returns + ------- + out : ndarray + The output array. + + Notes + ----- + Specify `count` to improve performance. It allows ``fromiter`` to + pre-allocate the output array, instead of resizing it on demand. + + Examples + -------- + >>> import numpy as np + >>> iterable = (x*x for x in range(5)) + >>> np.fromiter(iterable, float) + array([ 0., 1., 4., 9., 16.]) + + A carefully constructed subarray dtype will lead to higher dimensional + results: + + >>> iterable = ((x+1, x+2) for x in range(5)) + >>> np.fromiter(iterable, dtype=np.dtype((int, 2))) + array([[1, 2], + [2, 3], + [3, 4], + [4, 5], + [5, 6]]) + + + """) + +add_newdoc('numpy._core.multiarray', 'fromfile', + """ + fromfile(file, dtype=None, count=-1, sep='', offset=0, *, like=None) + -- + + fromfile(file, dtype=float, count=-1, sep='', offset=0, *, like=None) + + Construct an array from data in a text or binary file. + + A highly efficient way of reading binary data with a known data-type, + as well as parsing simply formatted text files. Data written using the + `tofile` method can be read using this function. + + Parameters + ---------- + file : file or str or Path + An open file object, a string containing the filename, or a Path object. + When reading from a file object it must support random access + (i.e. it must have tell and seek methods). + dtype : data-type + Data type of the returned array. + For binary files, it is used to determine the size and byte-order + of the items in the file. + Most builtin numeric types are supported and extension types may be supported. + count : int + Number of items to read. ``-1`` means all items (i.e., the complete + file). + sep : str + Separator between items if file is a text file. + Empty ("") separator means the file should be treated as binary. + Spaces (" ") in the separator match zero or more whitespace characters. + A separator consisting only of spaces must match at least one + whitespace. + offset : int + The offset (in bytes) from the file's current position. Defaults to 0. + Only permitted for binary files. + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + See also + -------- + load, save + ndarray.tofile + loadtxt : More flexible way of loading data from a text file. + + Notes + ----- + Do not rely on the combination of `tofile` and `fromfile` for + data storage, as the binary files generated are not platform + independent. In particular, no byte-order or data-type information is + saved. Data can be stored in the platform independent ``.npy`` format + using `save` and `load` instead. + + Examples + -------- + Construct an ndarray: + + >>> import numpy as np + >>> dt = np.dtype([('time', [('min', np.int64), ('sec', np.int64)]), + ... ('temp', float)]) + >>> x = np.zeros((1,), dtype=dt) + >>> x['time']['min'] = 10; x['temp'] = 98.25 + >>> x + array([((10, 0), 98.25)], + dtype=[('time', [('min', '>> import tempfile + >>> fname = tempfile.mkstemp()[1] + >>> x.tofile(fname) + + Read the raw data from disk: + + >>> np.fromfile(fname, dtype=dt) + array([((10, 0), 98.25)], + dtype=[('time', [('min', '>> np.save(fname, x) + >>> np.load(fname + '.npy') + array([((10, 0), 98.25)], + dtype=[('time', [('min', '>> dt = np.dtype(int) + >>> dt = dt.newbyteorder('>') + >>> np.frombuffer(buf, dtype=dt) # doctest: +SKIP + + The data of the resulting array will not be byteswapped, but will be + interpreted correctly. + + This function creates a view into the original object. This should be safe + in general, but it may make sense to copy the result when the original + object is mutable or untrusted. + + Examples + -------- + >>> import numpy as np + >>> s = b'hello world' + >>> np.frombuffer(s, dtype='S1', count=5, offset=6) + array([b'w', b'o', b'r', b'l', b'd'], dtype='|S1') + + >>> np.frombuffer(b'\\x01\\x02', dtype=np.uint8) + array([1, 2], dtype=uint8) + >>> np.frombuffer(b'\\x01\\x02\\x03\\x04\\x05', dtype=np.uint8, count=3) + array([1, 2, 3], dtype=uint8) + + """) + +add_newdoc('numpy._core.multiarray', 'from_dlpack', + """ + from_dlpack(x, /, *, device=None, copy=None) + -- + + from_dlpack(x, /, *, device=None, copy=None) + + Create a NumPy array from an object implementing the ``__dlpack__`` + protocol. Generally, the returned NumPy array is a view of the input + object. See [1]_ and [2]_ for more details. + + Parameters + ---------- + x : object + A Python object that implements the ``__dlpack__`` and + ``__dlpack_device__`` methods. + device : device, optional + Device on which to place the created array. Default: ``None``. + Must be ``"cpu"`` if passed which may allow importing an array + that is not already CPU available. + copy : bool, optional + Boolean indicating whether or not to copy the input. If ``True``, + the copy will be made. If ``False``, the function will never copy, + and will raise ``BufferError`` in case a copy is deemed necessary. + Passing it requests a copy from the exporter who may or may not + implement the capability. + If ``None``, the function will reuse the existing memory buffer if + possible and copy otherwise. Default: ``None``. + + + Returns + ------- + out : ndarray + + References + ---------- + .. [1] Array API documentation, + https://data-apis.org/array-api/latest/design_topics/data_interchange.html#syntax-for-data-interchange-with-dlpack + + .. [2] Python specification for DLPack, + https://dmlc.github.io/dlpack/latest/python_spec.html + + Examples + -------- + >>> import torch # doctest: +SKIP + >>> x = torch.arange(10) # doctest: +SKIP + >>> # create a view of the torch tensor "x" in NumPy + >>> y = np.from_dlpack(x) # doctest: +SKIP + """) + +add_newdoc('numpy._core.multiarray', 'correlate', + """cross_correlate(a,v, mode=0)""") + +add_newdoc('numpy._core.multiarray', 'arange', + """ + arange(start_or_stop, /, stop=None, step=1, *, dtype=None, device=None, like=None) + -- + + arange([start,] stop[, step,], dtype=None, *, device=None, like=None) + + Return evenly spaced values within a given interval. + + ``arange`` can be called with a varying number of positional arguments: + + * ``arange(stop)``: Values are generated within the half-open interval + ``[0, stop)`` (in other words, the interval including `start` but + excluding `stop`). + * ``arange(start, stop)``: Values are generated within the half-open + interval ``[start, stop)``. + * ``arange(start, stop, step)`` Values are generated within the half-open + interval ``[start, stop)``, with spacing between values given by + ``step``. + + For integer arguments the function is roughly equivalent to the Python + built-in :py:class:`range`, but returns an ndarray rather than a ``range`` + instance. + + When using a non-integer step, such as 0.1, it is often better to use + `numpy.linspace`. + + See the Warning sections below for more information. + + Parameters + ---------- + start : integer or real, optional + Start of interval. The interval includes this value. The default + start value is 0. + stop : integer or real + End of interval. The interval does not include this value, except + in some cases where `step` is not an integer and floating point + round-off affects the length of `out`. + step : integer or real, optional + Spacing between values. For any output `out`, this is the distance + between two adjacent values, ``out[i+1] - out[i]``. The default + step size is 1. If `step` is specified as a position argument, + `start` must also be given. + dtype : dtype, optional + The type of the output array. If `dtype` is not given, infer the data + type from the other input arguments. + device : str, optional + The device on which to place the created array. Default: ``None``. + For Array-API interoperability only, so must be ``"cpu"`` if passed. + + .. versionadded:: 2.0.0 + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + Returns + ------- + arange : ndarray + Array of evenly spaced values. + + For floating point arguments, the length of the result is + ``ceil((stop - start)/step)``. Because of floating point overflow, + this rule may result in the last element of `out` being greater + than `stop`. + + Warnings + -------- + The length of the output might not be numerically stable. + + Another stability issue is due to the internal implementation of + `numpy.arange`. + The actual step value used to populate the array is + ``dtype(start + step) - dtype(start)`` and not `step`. Precision loss + can occur here, due to casting or due to using floating points when + `start` is much larger than `step`. This can lead to unexpected + behaviour. For example:: + + >>> np.arange(0, 5, 0.5, dtype=int) + array([0, 0, 0, 0, 0, 0, 0, 0, 0, 0]) + >>> np.arange(-3, 3, 0.5, dtype=int) + array([-3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8]) + + In such cases, the use of `numpy.linspace` should be preferred. + + The built-in :py:class:`range` generates :std:doc:`Python built-in integers + that have arbitrary size `, while `numpy.arange` + produces `numpy.int32` or `numpy.int64` numbers. This may result in + incorrect results for large integer values:: + + >>> power = 40 + >>> modulo = 10000 + >>> x1 = [(n ** power) % modulo for n in range(8)] + >>> x2 = [(n ** power) % modulo for n in np.arange(8)] + >>> print(x1) + [0, 1, 7776, 8801, 6176, 625, 6576, 4001] # correct + >>> print(x2) + [0, 1, 7776, 7185, 0, 5969, 4816, 3361] # incorrect + + See Also + -------- + numpy.linspace : Evenly spaced numbers with careful handling of endpoints. + numpy.ogrid: Arrays of evenly spaced numbers in N-dimensions. + numpy.mgrid: Grid-shaped arrays of evenly spaced numbers in N-dimensions. + :ref:`how-to-partition` + + Examples + -------- + >>> import numpy as np + >>> np.arange(3) + array([0, 1, 2]) + >>> np.arange(3.0) + array([ 0., 1., 2.]) + >>> np.arange(3,7) + array([3, 4, 5, 6]) + >>> np.arange(3,7,2) + array([3, 5]) + + """) + +add_newdoc('numpy._core.multiarray', '_get_ndarray_c_version', + """_get_ndarray_c_version() + + Return the compile time NPY_VERSION (formerly called NDARRAY_VERSION) number. + + """) + +add_newdoc('numpy._core.multiarray', '_reconstruct', + """_reconstruct(subtype, shape, dtype) + + Construct an empty array. Used by Pickle. + + """) + +add_newdoc('numpy._core.multiarray', 'promote_types', + """ + promote_types(type1, type2, /) + -- + + promote_types(type1, type2, /) + + Returns the data type with the smallest size and smallest scalar + kind to which both ``type1`` and ``type2`` may be safely cast. + The returned data type is always considered "canonical", this mainly + means that the promoted dtype will always be in native byte order. + + This function is symmetric, but rarely associative. + + Parameters + ---------- + type1 : dtype or dtype specifier + First data type. + type2 : dtype or dtype specifier + Second data type. + + Returns + ------- + out : dtype + The promoted data type. + + Notes + ----- + Please see `numpy.result_type` for additional information about promotion. + + Starting in NumPy 1.9, promote_types function now returns a valid string + length when given an integer or float dtype as one argument and a string + dtype as another argument. Previously it always returned the input string + dtype, even if it wasn't long enough to store the max integer/float value + converted to a string. + + .. versionchanged:: 1.23.0 + + NumPy now supports promotion for more structured dtypes. It will now + remove unnecessary padding from a structure dtype and promote included + fields individually. + + See Also + -------- + result_type, dtype, can_cast + + Examples + -------- + >>> import numpy as np + >>> np.promote_types('f4', 'f8') + dtype('float64') + + >>> np.promote_types('i8', 'f4') + dtype('float64') + + >>> np.promote_types('>i8', '>> np.promote_types('i4', 'S8') + dtype('S11') + + An example of a non-associative case: + + >>> p = np.promote_types + >>> p('S', p('i1', 'u1')) + dtype('S6') + >>> p(p('S', 'i1'), 'u1') + dtype('S4') + + """) + +add_newdoc('numpy._core.multiarray', 'c_einsum', + """ + c_einsum(subscripts, *operands, out=None, dtype=None, order='K', + casting='safe') + + *This documentation shadows that of the native python implementation of the `einsum` function, + except all references and examples related to the `optimize` argument (v 0.12.0) have been removed.* + + Evaluates the Einstein summation convention on the operands. + + Using the Einstein summation convention, many common multi-dimensional, + linear algebraic array operations can be represented in a simple fashion. + In *implicit* mode `einsum` computes these values. + + In *explicit* mode, `einsum` provides further flexibility to compute + other array operations that might not be considered classical Einstein + summation operations, by disabling, or forcing summation over specified + subscript labels. + + See the notes and examples for clarification. + + Parameters + ---------- + subscripts : str + Specifies the subscripts for summation as comma separated list of + subscript labels. An implicit (classical Einstein summation) + calculation is performed unless the explicit indicator '->' is + included as well as subscript labels of the precise output form. + operands : list of array_like + These are the arrays for the operation. + out : ndarray, optional + If provided, the calculation is done into this array. + dtype : {data-type, None}, optional + If provided, forces the calculation to use the data type specified. + Note that you may have to also give a more liberal `casting` + parameter to allow the conversions. Default is None. + order : {'C', 'F', 'A', 'K'}, optional + Controls the memory layout of the output. 'C' means it should + be C contiguous. 'F' means it should be Fortran contiguous, + 'A' means it should be 'F' if the inputs are all 'F', 'C' otherwise. + 'K' means it should be as close to the layout of the inputs as + is possible, including arbitrarily permuted axes. + Default is 'K'. + casting : {'no', 'equiv', 'safe', 'same_kind', 'unsafe'}, optional + Controls what kind of data casting may occur. Setting this to + 'unsafe' is not recommended, as it can adversely affect accumulations. + + * 'no' means the data types should not be cast at all. + * 'equiv' means only byte-order changes are allowed. + * 'safe' means only casts which can preserve values are allowed. + * 'same_kind' means only safe casts or casts within a kind, + like float64 to float32, are allowed. + * 'unsafe' means any data conversions may be done. + + Default is 'safe'. + optimize : {False, True, 'greedy', 'optimal'}, optional + Controls if intermediate optimization should occur. No optimization + will occur if False and True will default to the 'greedy' algorithm. + Also accepts an explicit contraction list from the ``np.einsum_path`` + function. See ``np.einsum_path`` for more details. Defaults to False. + + Returns + ------- + output : ndarray + The calculation based on the Einstein summation convention. + + See Also + -------- + einsum_path, dot, inner, outer, tensordot, linalg.multi_dot + + Notes + ----- + The Einstein summation convention can be used to compute + many multi-dimensional, linear algebraic array operations. `einsum` + provides a succinct way of representing these. + + A non-exhaustive list of these operations, + which can be computed by `einsum`, is shown below along with examples: + + * Trace of an array, :py:func:`numpy.trace`. + * Return a diagonal, :py:func:`numpy.diag`. + * Array axis summations, :py:func:`numpy.sum`. + * Transpositions and permutations, :py:func:`numpy.transpose`. + * Matrix multiplication and dot product, :py:func:`numpy.matmul` :py:func:`numpy.dot`. + * Vector inner and outer products, :py:func:`numpy.inner` :py:func:`numpy.outer`. + * Broadcasting, element-wise and scalar multiplication, :py:func:`numpy.multiply`. + * Tensor contractions, :py:func:`numpy.tensordot`. + * Chained array operations, in efficient calculation order, :py:func:`numpy.einsum_path`. + + The subscripts string is a comma-separated list of subscript labels, + where each label refers to a dimension of the corresponding operand. + Whenever a label is repeated it is summed, so ``np.einsum('i,i', a, b)`` + is equivalent to :py:func:`np.inner(a,b) `. If a label + appears only once, it is not summed, so ``np.einsum('i', a)`` produces a + view of ``a`` with no changes. A further example ``np.einsum('ij,jk', a, b)`` + describes traditional matrix multiplication and is equivalent to + :py:func:`np.matmul(a,b) `. Repeated subscript labels in one + operand take the diagonal. For example, ``np.einsum('ii', a)`` is equivalent + to :py:func:`np.trace(a) `. + + In *implicit mode*, the chosen subscripts are important + since the axes of the output are reordered alphabetically. This + means that ``np.einsum('ij', a)`` doesn't affect a 2D array, while + ``np.einsum('ji', a)`` takes its transpose. Additionally, + ``np.einsum('ij,jk', a, b)`` returns a matrix multiplication, while, + ``np.einsum('ij,jh', a, b)`` returns the transpose of the + multiplication since subscript 'h' precedes subscript 'i'. + + In *explicit mode* the output can be directly controlled by + specifying output subscript labels. This requires the + identifier '->' as well as the list of output subscript labels. + This feature increases the flexibility of the function since + summing can be disabled or forced when required. The call + ``np.einsum('i->', a)`` is like :py:func:`np.sum(a) ` + if ``a`` is a 1-D array, and ``np.einsum('ii->i', a)`` + is like :py:func:`np.diag(a) ` if ``a`` is a square 2-D array. + The difference is that `einsum` does not allow broadcasting by default. + Additionally ``np.einsum('ij,jh->ih', a, b)`` directly specifies the + order of the output subscript labels and therefore returns matrix + multiplication, unlike the example above in implicit mode. + + To enable and control broadcasting, use an ellipsis. Default + NumPy-style broadcasting is done by adding an ellipsis + to the left of each term, like ``np.einsum('...ii->...i', a)``. + ``np.einsum('...i->...', a)`` is like + :py:func:`np.sum(a, axis=-1) ` for array ``a`` of any shape. + To take the trace along the first and last axes, + you can do ``np.einsum('i...i', a)``, or to do a matrix-matrix + product with the left-most indices instead of rightmost, one can do + ``np.einsum('ij...,jk...->ik...', a, b)``. + + When there is only one operand, no axes are summed, and no output + parameter is provided, a view into the operand is returned instead + of a new array. Thus, taking the diagonal as ``np.einsum('ii->i', a)`` + produces a view (changed in version 1.10.0). + + `einsum` also provides an alternative way to provide the subscripts + and operands as ``einsum(op0, sublist0, op1, sublist1, ..., [sublistout])``. + If the output shape is not provided in this format `einsum` will be + calculated in implicit mode, otherwise it will be performed explicitly. + The examples below have corresponding `einsum` calls with the two + parameter methods. + + Views returned from einsum are now writeable whenever the input array + is writeable. For example, ``np.einsum('ijk...->kji...', a)`` will now + have the same effect as :py:func:`np.swapaxes(a, 0, 2) ` + and ``np.einsum('ii->i', a)`` will return a writeable view of the diagonal + of a 2D array. + + Examples + -------- + >>> import numpy as np + >>> a = np.arange(25).reshape(5,5) + >>> b = np.arange(5) + >>> c = np.arange(6).reshape(2,3) + + Trace of a matrix: + + >>> np.einsum('ii', a) + 60 + >>> np.einsum(a, [0,0]) + 60 + >>> np.trace(a) + 60 + + Extract the diagonal (requires explicit form): + + >>> np.einsum('ii->i', a) + array([ 0, 6, 12, 18, 24]) + >>> np.einsum(a, [0,0], [0]) + array([ 0, 6, 12, 18, 24]) + >>> np.diag(a) + array([ 0, 6, 12, 18, 24]) + + Sum over an axis (requires explicit form): + + >>> np.einsum('ij->i', a) + array([ 10, 35, 60, 85, 110]) + >>> np.einsum(a, [0,1], [0]) + array([ 10, 35, 60, 85, 110]) + >>> np.sum(a, axis=1) + array([ 10, 35, 60, 85, 110]) + + For higher dimensional arrays summing a single axis can be done with ellipsis: + + >>> np.einsum('...j->...', a) + array([ 10, 35, 60, 85, 110]) + >>> np.einsum(a, [Ellipsis,1], [Ellipsis]) + array([ 10, 35, 60, 85, 110]) + + Compute a matrix transpose, or reorder any number of axes: + + >>> np.einsum('ji', c) + array([[0, 3], + [1, 4], + [2, 5]]) + >>> np.einsum('ij->ji', c) + array([[0, 3], + [1, 4], + [2, 5]]) + >>> np.einsum(c, [1,0]) + array([[0, 3], + [1, 4], + [2, 5]]) + >>> np.transpose(c) + array([[0, 3], + [1, 4], + [2, 5]]) + + Vector inner products: + + >>> np.einsum('i,i', b, b) + 30 + >>> np.einsum(b, [0], b, [0]) + 30 + >>> np.inner(b,b) + 30 + + Matrix vector multiplication: + + >>> np.einsum('ij,j', a, b) + array([ 30, 80, 130, 180, 230]) + >>> np.einsum(a, [0,1], b, [1]) + array([ 30, 80, 130, 180, 230]) + >>> np.dot(a, b) + array([ 30, 80, 130, 180, 230]) + >>> np.einsum('...j,j', a, b) + array([ 30, 80, 130, 180, 230]) + + Broadcasting and scalar multiplication: + + >>> np.einsum('..., ...', 3, c) + array([[ 0, 3, 6], + [ 9, 12, 15]]) + >>> np.einsum(',ij', 3, c) + array([[ 0, 3, 6], + [ 9, 12, 15]]) + >>> np.einsum(3, [Ellipsis], c, [Ellipsis]) + array([[ 0, 3, 6], + [ 9, 12, 15]]) + >>> np.multiply(3, c) + array([[ 0, 3, 6], + [ 9, 12, 15]]) + + Vector outer product: + + >>> np.einsum('i,j', np.arange(2)+1, b) + array([[0, 1, 2, 3, 4], + [0, 2, 4, 6, 8]]) + >>> np.einsum(np.arange(2)+1, [0], b, [1]) + array([[0, 1, 2, 3, 4], + [0, 2, 4, 6, 8]]) + >>> np.outer(np.arange(2)+1, b) + array([[0, 1, 2, 3, 4], + [0, 2, 4, 6, 8]]) + + Tensor contraction: + + >>> a = np.arange(60.).reshape(3,4,5) + >>> b = np.arange(24.).reshape(4,3,2) + >>> np.einsum('ijk,jil->kl', a, b) + array([[ 4400., 4730.], + [ 4532., 4874.], + [ 4664., 5018.], + [ 4796., 5162.], + [ 4928., 5306.]]) + >>> np.einsum(a, [0,1,2], b, [1,0,3], [2,3]) + array([[ 4400., 4730.], + [ 4532., 4874.], + [ 4664., 5018.], + [ 4796., 5162.], + [ 4928., 5306.]]) + >>> np.tensordot(a,b, axes=([1,0],[0,1])) + array([[ 4400., 4730.], + [ 4532., 4874.], + [ 4664., 5018.], + [ 4796., 5162.], + [ 4928., 5306.]]) + + Writeable returned arrays (since version 1.10.0): + + >>> a = np.zeros((3, 3)) + >>> np.einsum('ii->i', a)[:] = 1 + >>> a + array([[ 1., 0., 0.], + [ 0., 1., 0.], + [ 0., 0., 1.]]) + + Example of ellipsis use: + + >>> a = np.arange(6).reshape((3,2)) + >>> b = np.arange(12).reshape((4,3)) + >>> np.einsum('ki,jk->ij', a, b) + array([[10, 28, 46, 64], + [13, 40, 67, 94]]) + >>> np.einsum('ki,...k->i...', a, b) + array([[10, 28, 46, 64], + [13, 40, 67, 94]]) + >>> np.einsum('k...,jk', a, b) + array([[10, 28, 46, 64], + [13, 40, 67, 94]]) + + """) + + +############################################################################## +# +# Documentation for ndarray attributes and methods +# +############################################################################## + + +############################################################################## +# +# ndarray object +# +############################################################################## + + +add_newdoc('numpy._core.multiarray', 'ndarray', + """ + ndarray(shape, dtype=None, buffer=None, offset=0, strides=None, order=None) + -- + + ndarray(shape, dtype=float, buffer=None, offset=0, strides=None, order=None) + + An array object represents a multidimensional, homogeneous array + of fixed-size items. An associated data-type object describes the + format of each element in the array (its byte-order, how many bytes it + occupies in memory, whether it is an integer, a floating point number, + or something else, etc.) + + Arrays should be constructed using `array`, `zeros` or `empty` (refer + to the See Also section below). The parameters given here refer to + a low-level method (`ndarray(...)`) for instantiating an array. + + For more information, refer to the `numpy` module and examine the + methods and attributes of an array. + + Parameters + ---------- + (for the __new__ method; see Notes below) + + shape : tuple of ints + Shape of created array. + dtype : data-type, optional + Any object that can be interpreted as a numpy data type. + Default is `numpy.float64`. + buffer : object exposing buffer interface, optional + Used to fill the array with data. + offset : int, optional + Offset of array data in buffer. + strides : tuple of ints, optional + Strides of data in memory. + order : {'C', 'F'}, optional + Row-major (C-style) or column-major (Fortran-style) order. + + Attributes + ---------- + T : ndarray + Transpose of the array. + data : buffer + The array's elements, in memory. + dtype : dtype object + Describes the format of the elements in the array. + flags : dict + Dictionary containing information related to memory use, e.g., + 'C_CONTIGUOUS', 'OWNDATA', 'WRITEABLE', etc. + flat : numpy.flatiter object + Flattened version of the array as an iterator. The iterator + allows assignments, e.g., ``x.flat = 3`` (See `ndarray.flat` for + assignment examples; TODO). + imag : ndarray + Imaginary part of the array. + real : ndarray + Real part of the array. + size : int + Number of elements in the array. + itemsize : int + The memory use of each array element in bytes. + nbytes : int + The total number of bytes required to store the array data, + i.e., ``itemsize * size``. + ndim : int + The array's number of dimensions. + shape : tuple of ints + Shape of the array. + strides : tuple of ints + The step-size required to move from one element to the next in + memory. For example, a contiguous ``(3, 4)`` array of type + ``int16`` in C-order has strides ``(8, 2)``. This implies that + to move from element to element in memory requires jumps of 2 bytes. + To move from row-to-row, one needs to jump 8 bytes at a time + (``2 * 4``). + ctypes : ctypes object + Class containing properties of the array needed for interaction + with ctypes. + base : ndarray + If the array is a view into another array, that array is its `base` + (unless that array is also a view). The `base` array is where the + array data is actually stored. + + See Also + -------- + array : Construct an array. + zeros : Create an array, each element of which is zero. + empty : Create an array, but leave its allocated memory unchanged (i.e., + it contains "garbage"). + dtype : Create a data-type. + numpy.typing.NDArray : An ndarray alias :term:`generic ` + w.r.t. its `dtype.type `. + + Notes + ----- + There are two modes of creating an array using ``__new__``: + + 1. If `buffer` is None, then only `shape`, `dtype`, and `order` + are used. + 2. If `buffer` is an object exposing the buffer interface, then + all keywords are interpreted. + + No ``__init__`` method is needed because the array is fully initialized + after the ``__new__`` method. + + Examples + -------- + These examples illustrate the low-level `ndarray` constructor. Refer + to the `See Also` section above for easier ways of constructing an + ndarray. + + First mode, `buffer` is None: + + >>> import numpy as np + >>> np.ndarray(shape=(2,2), dtype=float, order='F') + array([[0.0e+000, 0.0e+000], # random + [ nan, 2.5e-323]]) + + Second mode: + + >>> np.ndarray((2,), buffer=np.array([1,2,3]), + ... offset=np.int_().itemsize, + ... dtype=int) # offset = 1*itemsize, i.e. skip first element + array([2, 3]) + + """) + + +############################################################################## +# +# ndarray attributes +# +############################################################################## + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('__array_interface__', + """Array protocol: Python side.""")) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('__array_priority__', + """Array priority.""")) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('__array_struct__', + """Array protocol: C-struct side.""")) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('base', + """ + Base object if memory is from some other object. + + Examples + -------- + The base of an array that owns its memory is None: + + >>> import numpy as np + >>> x = np.array([1,2,3,4]) + >>> x.base is None + True + + Slicing creates a view, whose memory is shared with x: + + >>> y = x[2:] + >>> y.base is x + True + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('ctypes', + """ + An object to simplify the interaction of the array with the ctypes + module. + + This attribute creates an object that makes it easier to use arrays + when calling shared libraries with the ctypes module. The returned + object has, among others, data, shape, and strides attributes (see + Notes below) which themselves return ctypes objects that can be used + as arguments to a shared library. + + Parameters + ---------- + None + + Returns + ------- + c : Python object + Possessing attributes data, shape, strides, etc. + + See Also + -------- + numpy.ctypeslib + + Notes + ----- + Below are the public attributes of this object which were documented + in "Guide to NumPy" (we have omitted undocumented public attributes, + as well as documented private attributes): + + .. autoattribute:: numpy._core._internal._ctypes.data + :noindex: + + .. autoattribute:: numpy._core._internal._ctypes.shape + :noindex: + + .. autoattribute:: numpy._core._internal._ctypes.strides + :noindex: + + .. automethod:: numpy._core._internal._ctypes.data_as + :noindex: + + .. automethod:: numpy._core._internal._ctypes.shape_as + :noindex: + + .. automethod:: numpy._core._internal._ctypes.strides_as + :noindex: + + If the ctypes module is not available, then the ctypes attribute + of array objects still returns something useful, but ctypes objects + are not returned and errors may be raised instead. In particular, + the object will still have the ``as_parameter`` attribute which will + return an integer equal to the data attribute. + + Examples + -------- + >>> import numpy as np + >>> import ctypes + >>> x = np.array([[0, 1], [2, 3]], dtype=np.int32) + >>> x + array([[0, 1], + [2, 3]], dtype=int32) + >>> x.ctypes.data + 31962608 # may vary + >>> x.ctypes.data_as(ctypes.POINTER(ctypes.c_uint32)) + <__main__.LP_c_uint object at 0x7ff2fc1fc200> # may vary + >>> x.ctypes.data_as(ctypes.POINTER(ctypes.c_uint32)).contents + c_uint(0) + >>> x.ctypes.data_as(ctypes.POINTER(ctypes.c_uint64)).contents + c_ulong(4294967296) + >>> x.ctypes.shape + # may vary + >>> x.ctypes.strides + # may vary + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('data', + """Python buffer object pointing to the start of the array's data.""")) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('dtype', + """ + Data-type of the array's elements. + + .. warning:: + + Setting ``arr.dtype`` is discouraged and may be deprecated in the + future. Setting will replace the ``dtype`` without modifying the + memory (see also `ndarray.view` and `ndarray.astype`). + + Parameters + ---------- + None + + Returns + ------- + d : numpy dtype object + + See Also + -------- + ndarray.astype : Cast the values contained in the array to a new data-type. + ndarray.view : Create a view of the same data but a different data-type. + numpy.dtype + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(4).reshape((2, 2)) + >>> x + array([[0, 1], + [2, 3]]) + >>> x.dtype + dtype('int64') # may vary (OS, bitness) + >>> isinstance(x.dtype, np.dtype) + True + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('imag', + """ + The imaginary part of the array. + + Examples + -------- + >>> import numpy as np + >>> x = np.sqrt([1+0j, 0+1j]) + >>> x.imag + array([ 0. , 0.70710678]) + >>> x.imag.dtype + dtype('float64') + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('itemsize', + """ + Length of one array element in bytes. + + Examples + -------- + >>> import numpy as np + >>> x = np.array([1,2,3], dtype=np.float64) + >>> x.itemsize + 8 + >>> x = np.array([1,2,3], dtype=np.complex128) + >>> x.itemsize + 16 + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('flags', + """ + Information about the memory layout of the array. + + Attributes + ---------- + C_CONTIGUOUS (C) + The data is in a single, C-style contiguous segment. + F_CONTIGUOUS (F) + The data is in a single, Fortran-style contiguous segment. + OWNDATA (O) + The array owns the memory it uses or borrows it from another object. + WRITEABLE (W) + The data area can be written to. Setting this to False locks + the data, making it read-only. A view (slice, etc.) inherits WRITEABLE + from its base array at creation time, but a view of a writeable + array may be subsequently locked while the base array remains writeable. + (The opposite is not true, in that a view of a locked array may not + be made writeable. However, currently, locking a base object does not + lock any views that already reference it, so under that circumstance it + is possible to alter the contents of a locked array via a previously + created writeable view onto it.) Attempting to change a non-writeable + array raises a RuntimeError exception. + ALIGNED (A) + The data and all elements are aligned appropriately for the hardware. + WRITEBACKIFCOPY (X) + This array is a copy of some other array. The C-API function + PyArray_ResolveWritebackIfCopy must be called before deallocating + to the base array will be updated with the contents of this array. + FNC + F_CONTIGUOUS and not C_CONTIGUOUS. + FORC + F_CONTIGUOUS or C_CONTIGUOUS (one-segment test). + BEHAVED (B) + ALIGNED and WRITEABLE. + CARRAY (CA) + BEHAVED and C_CONTIGUOUS. + FARRAY (FA) + BEHAVED and F_CONTIGUOUS and not C_CONTIGUOUS. + + Notes + ----- + The `flags` object can be accessed dictionary-like (as in ``a.flags['WRITEABLE']``), + or by using lowercased attribute names (as in ``a.flags.writeable``). Short flag + names are only supported in dictionary access. + + Only the WRITEBACKIFCOPY, WRITEABLE, and ALIGNED flags can be + changed by the user, via direct assignment to the attribute or dictionary + entry, or by calling `ndarray.setflags`. + + The array flags cannot be set arbitrarily: + + - WRITEBACKIFCOPY can only be set ``False``. + - ALIGNED can only be set ``True`` if the data is truly aligned. + - WRITEABLE can only be set ``True`` if the array owns its own memory + or the ultimate owner of the memory exposes a writeable buffer + interface or is a string. + + Arrays can be both C-style and Fortran-style contiguous simultaneously. + This is clear for 1-dimensional arrays, but can also be true for higher + dimensional arrays. + + Even for contiguous arrays a stride for a given dimension + ``arr.strides[dim]`` may be *arbitrary* if ``arr.shape[dim] == 1`` + or the array has no elements. + It does *not* generally hold that ``self.strides[-1] == self.itemsize`` + for C-style contiguous arrays or ``self.strides[0] == self.itemsize`` for + Fortran-style contiguous arrays is true. + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('flat', + """ + A 1-D iterator over the array. + + This is a `numpy.flatiter` instance, which acts similarly to, but is not + a subclass of, Python's built-in iterator object. + + See Also + -------- + flatten : Return a copy of the array collapsed into one dimension. + + flatiter + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(1, 7).reshape(2, 3) + >>> x + array([[1, 2, 3], + [4, 5, 6]]) + >>> x.flat[3] + 4 + >>> x.T + array([[1, 4], + [2, 5], + [3, 6]]) + >>> x.T.flat[3] + 5 + >>> type(x.flat) + + + An assignment example: + + >>> x.flat = 3; x + array([[3, 3, 3], + [3, 3, 3]]) + >>> x.flat[[1,4]] = 1; x + array([[3, 1, 3], + [3, 1, 3]]) + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('nbytes', + """ + Total bytes consumed by the elements of the array. + + Notes + ----- + Does not include memory consumed by non-element attributes of the + array object. + + See Also + -------- + sys.getsizeof + Memory consumed by the object itself without parents in case view. + This does include memory consumed by non-element attributes. + + Examples + -------- + >>> import numpy as np + >>> x = np.zeros((3,5,2), dtype=np.complex128) + >>> x.nbytes + 480 + >>> np.prod(x.shape) * x.itemsize + 480 + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('ndim', + """ + Number of array dimensions. + + Examples + -------- + >>> import numpy as np + >>> x = np.array([1, 2, 3]) + >>> x.ndim + 1 + >>> y = np.zeros((2, 3, 4)) + >>> y.ndim + 3 + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('real', + """ + The real part of the array. + + Examples + -------- + >>> import numpy as np + >>> x = np.sqrt([1+0j, 0+1j]) + >>> x.real + array([ 1. , 0.70710678]) + >>> x.real.dtype + dtype('float64') + + See Also + -------- + numpy.real : equivalent function + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('shape', + """ + Tuple of array dimensions. + + The shape property is usually used to get the current shape of an array, + but may also be used to reshape the array in-place by assigning a tuple of + array dimensions to it. As with `numpy.reshape`, one of the new shape + dimensions can be -1, in which case its value is inferred from the size of + the array and the remaining dimensions. Reshaping an array in-place will + fail if a copy is required. + + .. warning:: + + Setting ``arr.shape`` is discouraged and may be deprecated in the + future. Using `ndarray.reshape` is the preferred approach. + + Examples + -------- + >>> import numpy as np + >>> x = np.array([1, 2, 3, 4]) + >>> x.shape + (4,) + >>> y = np.zeros((2, 3, 4)) + >>> y.shape + (2, 3, 4) + >>> y.shape = (3, 8) + >>> y + array([[ 0., 0., 0., 0., 0., 0., 0., 0.], + [ 0., 0., 0., 0., 0., 0., 0., 0.], + [ 0., 0., 0., 0., 0., 0., 0., 0.]]) + >>> y.shape = (3, 6) + Traceback (most recent call last): + File "", line 1, in + ValueError: cannot reshape array of size 24 into shape (3,6) + >>> np.zeros((4,2))[::2].shape = (-1,) + Traceback (most recent call last): + File "", line 1, in + AttributeError: Incompatible shape for in-place modification. Use + `.reshape()` to make a copy with the desired shape. + + See Also + -------- + numpy.shape : Equivalent getter function. + numpy.reshape : Function similar to setting ``shape``. + ndarray.reshape : Method similar to setting ``shape``. + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('size', + """ + Number of elements in the array. + + Equal to ``np.prod(a.shape)``, i.e., the product of the array's + dimensions. + + Notes + ----- + `a.size` returns a standard arbitrary precision Python integer. This + may not be the case with other methods of obtaining the same value + (like the suggested ``np.prod(a.shape)``, which returns an instance + of ``np.int_``), and may be relevant if the value is used further in + calculations that may overflow a fixed size integer type. + + Examples + -------- + >>> import numpy as np + >>> x = np.zeros((3, 5, 2), dtype=np.complex128) + >>> x.size + 30 + >>> np.prod(x.shape) + 30 + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('strides', + """ + Tuple of bytes to step in each dimension when traversing an array. + + The byte offset of element ``(i[0], i[1], ..., i[n])`` in an array `a` + is:: + + offset = sum(np.array(i) * a.strides) + + A more detailed explanation of strides can be found in + :ref:`arrays.ndarray`. + + .. warning:: + + Setting ``arr.strides`` is discouraged and may be deprecated in the + future. `numpy.lib.stride_tricks.as_strided` should be preferred + to create a new view of the same data in a safer way. + + Notes + ----- + Imagine an array of 32-bit integers (each 4 bytes):: + + x = np.array([[0, 1, 2, 3, 4], + [5, 6, 7, 8, 9]], dtype=np.int32) + + This array is stored in memory as 40 bytes, one after the other + (known as a contiguous block of memory). The strides of an array tell + us how many bytes we have to skip in memory to move to the next position + along a certain axis. For example, we have to skip 4 bytes (1 value) to + move to the next column, but 20 bytes (5 values) to get to the same + position in the next row. As such, the strides for the array `x` will be + ``(20, 4)``. + + See Also + -------- + numpy.lib.stride_tricks.as_strided + + Examples + -------- + >>> import numpy as np + >>> y = np.reshape(np.arange(2 * 3 * 4, dtype=np.int32), (2, 3, 4)) + >>> y + array([[[ 0, 1, 2, 3], + [ 4, 5, 6, 7], + [ 8, 9, 10, 11]], + [[12, 13, 14, 15], + [16, 17, 18, 19], + [20, 21, 22, 23]]], dtype=np.int32) + >>> y.strides + (48, 16, 4) + >>> y[1, 1, 1] + np.int32(17) + >>> offset = sum(y.strides * np.array((1, 1, 1))) + >>> offset // y.itemsize + np.int64(17) + + >>> x = np.reshape(np.arange(5*6*7*8, dtype=np.int32), (5, 6, 7, 8)) + >>> x = x.transpose(2, 3, 1, 0) + >>> x.strides + (32, 4, 224, 1344) + >>> i = np.array([3, 5, 2, 2], dtype=np.int32) + >>> offset = sum(i * x.strides) + >>> x[3, 5, 2, 2] + np.int32(813) + >>> offset // x.itemsize + np.int64(813) + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('T', + """ + View of the transposed array. + + Same as ``self.transpose()``. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1, 2], [3, 4]]) + >>> a + array([[1, 2], + [3, 4]]) + >>> a.T + array([[1, 3], + [2, 4]]) + + >>> a = np.array([1, 2, 3, 4]) + >>> a + array([1, 2, 3, 4]) + >>> a.T + array([1, 2, 3, 4]) + + See Also + -------- + transpose + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('mT', + """ + View of the matrix transposed array. + + The matrix transpose is the transpose of the last two dimensions, even + if the array is of higher dimension. + + .. versionadded:: 2.0 + + Raises + ------ + ValueError + If the array is of dimension less than 2. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1, 2], [3, 4]]) + >>> a + array([[1, 2], + [3, 4]]) + >>> a.mT + array([[1, 3], + [2, 4]]) + + >>> a = np.arange(8).reshape((2, 2, 2)) + >>> a + array([[[0, 1], + [2, 3]], + + [[4, 5], + [6, 7]]]) + >>> a.mT + array([[[0, 2], + [1, 3]], + + [[4, 6], + [5, 7]]]) + + """)) + +############################################################################## +# +# ndarray methods +# +############################################################################## + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('__array__', + """ + __array__($self, dtype=None, /, *, copy=None) + -- + + a.__array__([dtype], *, copy=None) + + For ``dtype`` parameter it returns a new reference to self if + ``dtype`` is not given or it matches array's data type. + A new array of provided data type is returned if ``dtype`` + is different from the current data type of the array. + For ``copy`` parameter it returns a new reference to self if + ``copy=False`` or ``copy=None`` and copying isn't enforced by ``dtype`` + parameter. The method returns a new array for ``copy=True``, regardless of + ``dtype`` parameter. + + A more detailed explanation of the ``__array__`` interface + can be found in :ref:`dunder_array.interface`. + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('__array_finalize__', + """ + __array_finalize__($self, obj, /) + -- + + a.__array_finalize__(obj, /) + + Present so subclasses can call super. Does nothing. + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('__array_function__', + """ + __array_function__($self, /, func, types, args, kwargs) + -- + + a.__array_function__(func, types, args, kwargs) + + See :ref:`NEP 18 ` and :ref:`NEP 35 ` for details. + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('__array_ufunc__', + """ + __array_ufunc__($self, ufunc, method, /, *inputs, **kwargs) + -- + + a.__array_ufunc__(ufunc, method, /, *inputs, **kwargs) + + See :ref:`NEP 13 ` for details. + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('__array_wrap__', + """ + __array_wrap__($self, array, context=None, return_scalar=True, /) + -- + + a.__array_wrap__(array[, context[, return_scalar]], /) + + Returns a view of `array` with the same type as self. + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('__class_getitem__', + """ + __class_getitem__($cls, item, /) + -- + + ndarray[shape, dtype] + + Return a parametrized wrapper around the `~numpy.ndarray` type. + + .. versionadded:: 1.22 + + Returns + ------- + alias : types.GenericAlias + A parametrized `~numpy.ndarray` type. + + Examples + -------- + >>> import numpy as np + + >>> np.ndarray[tuple[int], np.dtype[np.uint8]] + numpy.ndarray[tuple[int], numpy.dtype[numpy.uint8]] + + See Also + -------- + :pep:`585` : Type hinting generics in standard collections. + numpy.typing.NDArray : An ndarray alias :term:`generic ` + w.r.t. its `dtype.type `. + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('__dlpack__', + """ + __dlpack__($self, /, *, stream=None, max_version=None, dl_device=None, copy=None) + -- + + a.__dlpack__(*, stream=None, max_version=None, dl_device=None, copy=None) + + Exports the array for consumption by ``from_dlpack()`` as a DLPack capsule. + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('__dlpack_device__', + """ + __dlpack_device__($self, /) + -- + + a.__dlpack_device__() + + Returns device type (``1``) and device ID (``0``) in DLPack format. + Meant for use within ``from_dlpack()``. + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('__reduce__', + """ + __reduce__($self, /) + -- + + a.__reduce__() + + For pickling. + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('__reduce_ex__', + """ + __reduce_ex__($self, protocol, /) + -- + + a.__reduce_ex__(protocol, /) + + For pickling. + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('__setstate__', + """ + __setstate__($self, state, /) + -- + + a.__setstate__(state, /) + + For unpickling. + + The `state` argument must be a sequence that contains the following + elements: + + Parameters + ---------- + version : int + optional pickle version. If omitted defaults to 0. + shape : tuple + dtype : data-type + isFortran : bool + rawdata : string or list + a binary string with the data (or a list if 'a' is an object array) + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('dot', + """ + dot($self, other, /, out=None) + -- + + a.dot(other, /, out=None) + + Refer to :func:`numpy.dot` for full documentation. + + See Also + -------- + numpy.dot : equivalent function + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('argpartition', + """ + argpartition($self, kth, /, axis=-1, kind='introselect', order=None) + -- + + a.argpartition(kth, axis=-1, kind='introselect', order=None) + + Returns the indices that would partition this array. + + Refer to `numpy.argpartition` for full documentation. + + See Also + -------- + numpy.argpartition : equivalent function + + """)) + + +add_newdoc('numpy._core.multiarray', 'ndarray', ('partition', + """ + partition($self, kth, /, axis=-1, kind='introselect', order=None) + -- + + a.partition(kth, axis=-1, kind='introselect', order=None) + + Partially sorts the elements in the array in such a way that the value of + the element in k-th position is in the position it would be in a sorted + array. In the output array, all elements smaller than the k-th element + are located to the left of this element and all equal or greater are + located to its right. The ordering of the elements in the two partitions + on the either side of the k-th element in the output array is undefined. + + Parameters + ---------- + kth : int or sequence of ints + Element index to partition by. The kth element value will be in its + final sorted position and all smaller elements will be moved before it + and all equal or greater elements behind it. + The order of all elements in the partitions is undefined. + If provided with a sequence of kth it will partition all elements + indexed by kth of them into their sorted position at once. + + .. deprecated:: 1.22.0 + Passing booleans as index is deprecated. + axis : int, optional + Axis along which to sort. Default is -1, which means sort along the + last axis. + kind : {'introselect'}, optional + Selection algorithm. Default is 'introselect'. + order : str or list of str, optional + When `a` is an array with fields defined, this argument specifies + which fields to compare first, second, etc. A single field can + be specified as a string, and not all fields need to be specified, + but unspecified fields will still be used, in the order in which + they come up in the dtype, to break ties. + + See Also + -------- + numpy.partition : Return a partitioned copy of an array. + argpartition : Indirect partition. + sort : Full sort. + + Notes + ----- + See ``np.partition`` for notes on the different algorithms. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([3, 4, 2, 1]) + >>> a.partition(3) + >>> a + array([2, 1, 3, 4]) # may vary + + >>> a.partition((1, 3)) + >>> a + array([1, 2, 3, 4]) + + """)) + + +############################################################################## +# +# methods from both `ndarray` and `generic` +# +############################################################################## + +_METHOD_DOC_TEMPLATE = """{name}({params}) +-- + +{doc}""" + +def _array_method_doc(name: str, params: str, doc: str) -> None: + """ + Interenal helper function for adding docstrings to a common method of + `numpy.ndarray` and `numpy.generic`. + + The provided docstring will be added to the given `numpy.ndarray` method. + For the `numpy.generic` method, a shorter docstring indicating that it is + identical to the `ndarray` method will be created. + Both methods will have a proper and identical `__text_signature__`. + + Parameters + ---------- + name : str + Name of the method. + params : str + Parameter signature for the method without parentheses, for example, + ``"a, /, dtype=None, *, copy=False"``. + Parameter defaults must be understood by `ast.literal_eval`, i.e. strings, + bytes, numbers, tuples, lists, dicts, sets, booleans, or None. + doc : str + The full docstring for the `ndarray` method. + """ + + # prepend the pos-only `$self` parameter to the method signature + if "/" not in params: + params = f"/, {params}" if params else "/" + params = f"$self, {params}" + + # add docstring to `np.ndarray.{name}` + doc = textwrap.dedent(doc).strip() + doc_array = _METHOD_DOC_TEMPLATE.format(name=name, params=params, doc=doc) + add_newdoc("numpy._core.multiarray", "ndarray", (name, doc_array)) + + # add docstring to `np.generic.{name}` + doc_scalar = f"Scalar method identical to `ndarray.{name}`." + doc_scalar = _METHOD_DOC_TEMPLATE.format(name=name, params=params, doc=doc_scalar) + add_newdoc("numpy._core.numerictypes", "generic", (name, doc_scalar)) + + +_array_method_doc('__array_namespace__', "*, api_version=None", + """ + a.__array_namespace__(*, api_version=None) + + For Array API compatibility. + """) + +_array_method_doc('__copy__', "", + """ + a.__copy__() + + Used if :func:`copy.copy` is called on an array. Returns a copy of the array. + + Equivalent to ``a.copy(order='K')``. + """) + +_array_method_doc('__deepcopy__', "memo, /", + """ + a.__deepcopy__(memo, /) + + Used if :func:`copy.deepcopy` is called on an array. + """) + +_array_method_doc('all', "axis=None, out=None, keepdims=False, *, where=True", + """ + a.all(axis=None, out=None, *, keepdims=, where=) + + Returns True if all elements evaluate to True. + + Refer to `numpy.all` for full documentation. + + See Also + -------- + numpy.all : equivalent function + """) + +_array_method_doc('any', "axis=None, out=None, keepdims=False, *, where=True", + """ + a.any(axis=None, out=None, *, keepdims=, where=) + + Returns True if any of the elements of `a` evaluate to True. + + Refer to `numpy.any` for full documentation. + + See Also + -------- + numpy.any : equivalent function + """) + +_array_method_doc('argmax', "axis=None, out=None, *, keepdims=False", + """ + a.argmax(axis=None, out=None, *, keepdims=False) + + Return indices of the maximum values along the given axis. + + Refer to `numpy.argmax` for full documentation. + + See Also + -------- + numpy.argmax : equivalent function + """) + +_array_method_doc('argmin', "axis=None, out=None, *, keepdims=False", + """ + a.argmin(axis=None, out=None, *, keepdims=False) + + Return indices of the minimum values along the given axis. + + Refer to `numpy.argmin` for detailed documentation. + + See Also + -------- + numpy.argmin : equivalent function + """) + +_array_method_doc('argsort', "axis=-1, kind=None, order=None, *, stable=None", + """ + a.argsort(axis=-1, kind=None, order=None, *, stable=None) + + Returns the indices that would sort this array. + + Refer to `numpy.argsort` for full documentation. + + See Also + -------- + numpy.argsort : equivalent function + """) + +_array_method_doc('astype', "dtype, order='K', casting='unsafe', subok=True, copy=True", + """ + a.astype(dtype, order='K', casting='unsafe', subok=True, copy=True) + + Copy of the array, cast to a specified type. + + Parameters + ---------- + dtype : str or dtype + Typecode or data-type to which the array is cast. + order : {'C', 'F', 'A', 'K'}, optional + Controls the memory layout order of the result. + 'C' means C order, 'F' means Fortran order, 'A' + means 'F' order if all the arrays are Fortran contiguous, + 'C' order otherwise, and 'K' means as close to the + order the array elements appear in memory as possible. + Default is 'K'. + casting : {'no', 'equiv', 'safe', 'same_kind', 'same_value', 'unsafe'}, optional + Controls what kind of data casting may occur. Defaults to 'unsafe' + for backwards compatibility. + + * 'no' means the data types should not be cast at all. + * 'equiv' means only byte-order changes are allowed. + * 'safe' means only casts which can preserve values are allowed. + * 'same_kind' means only safe casts or casts within a kind, + like float64 to float32, are allowed. + * 'unsafe' means any data conversions may be done. + * 'same_value' means any data conversions may be done, but the values + must not change, including rounding of floats or overflow of ints + + .. versionadded:: 2.4 + Support for ``'same_value'`` was added. + + subok : bool, optional + If True, then sub-classes will be passed-through (default), otherwise + the returned array will be forced to be a base-class array. + copy : bool, optional + By default, astype always returns a newly allocated array. If this + is set to false, and the `dtype`, `order`, and `subok` + requirements are satisfied, the input array is returned instead + of a copy. + + Returns + ------- + arr_t : ndarray + Unless `copy` is False and the other conditions for returning the input + array are satisfied (see description for `copy` input parameter), `arr_t` + is a new array of the same shape as the input array, with dtype, order + given by `dtype`, `order`. + + Raises + ------ + ComplexWarning + When casting from complex to float or int. To avoid this, + one should use ``a.real.astype(t)``. + ValueError + When casting using ``'same_value'`` and the values change or would + overflow + + Examples + -------- + >>> import numpy as np + >>> x = np.array([1, 2, 2.5]) + >>> x + array([1. , 2. , 2.5]) + + >>> x.astype(int) + array([1, 2, 2]) + + >>> x.astype(int, casting="same_value") + Traceback (most recent call last): + ... + ValueError: could not cast 'same_value' double to long + + >>> x[:2].astype(int, casting="same_value") + array([1, 2]) + """) + +_array_method_doc('byteswap', "inplace=False", + """ + a.byteswap(inplace=False) + + Swap the bytes of the array elements + + Toggle between low-endian and big-endian data representation by + returning a byteswapped array, optionally swapped in-place. + Arrays of byte-strings are not swapped. The real and imaginary + parts of a complex number are swapped individually. + + Parameters + ---------- + inplace : bool, optional + If ``True``, swap bytes in-place, default is ``False``. + + Returns + ------- + out : ndarray + The byteswapped array. If `inplace` is ``True``, this is + a view to self. + + Examples + -------- + >>> import numpy as np + >>> A = np.array([1, 256, 8755], dtype=np.int16) + >>> list(map(hex, A)) + ['0x1', '0x100', '0x2233'] + >>> A.byteswap(inplace=True) + array([ 256, 1, 13090], dtype=int16) + >>> list(map(hex, A)) + ['0x100', '0x1', '0x3322'] + + Arrays of byte-strings are not swapped + + >>> A = np.array([b'ceg', b'fac']) + >>> A.byteswap() + array([b'ceg', b'fac'], dtype='|S3') + + ``A.view(A.dtype.newbyteorder()).byteswap()`` produces an array with + the same values but different representation in memory + + >>> A = np.array([1, 2, 3],dtype=np.int64) + >>> A.view(np.uint8) + array([1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 0, 3, 0, 0, 0, 0, 0, + 0, 0], dtype=uint8) + >>> A.view(A.dtype.newbyteorder()).byteswap(inplace=True) + array([1, 2, 3], dtype='>i8') + >>> A.view(np.uint8) + array([0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, + 0, 3], dtype=uint8) + """) + +_array_method_doc('choose', "choices, out=None, mode='raise'", + """ + a.choose(choices, out=None, mode='raise') + + Use an index array to construct a new array from a set of choices. + + Refer to `numpy.choose` for full documentation. + + See Also + -------- + numpy.choose : equivalent function + """) + +_array_method_doc('clip', "min=None, max=None, out=None, **kwargs", + """ + a.clip(min=, max=, out=None, **kwargs) + + Return an array whose values are limited to ``[min, max]``. + One of max or min must be given. + + Refer to `numpy.clip` for full documentation. + + See Also + -------- + numpy.clip : equivalent function + """) + +_array_method_doc('compress', "condition, axis=None, out=None", + """ + a.compress(condition, axis=None, out=None) + + Return selected slices of this array along given axis. + + Refer to `numpy.compress` for full documentation. + + See Also + -------- + numpy.compress : equivalent function + """) + +_array_method_doc('conj', "", + """ + a.conj() + + Complex-conjugate all elements. + + Refer to `numpy.conjugate` for full documentation. + + See Also + -------- + numpy.conjugate : equivalent function + """) + +_array_method_doc('conjugate', "", + """ + a.conjugate() + + Return the complex conjugate, element-wise. + + Refer to `numpy.conjugate` for full documentation. + + See Also + -------- + numpy.conjugate : equivalent function + """) + +_array_method_doc('copy', "order='C'", + """ + a.copy(order='C') + + Return a copy of the array. + + Parameters + ---------- + order : {'C', 'F', 'A', 'K'}, optional + Controls the memory layout of the copy. 'C' means C-order, + 'F' means F-order, 'A' means 'F' if `a` is Fortran contiguous, + 'C' otherwise. 'K' means match the layout of `a` as closely + as possible. (Note that this function and :func:`numpy.copy` are very + similar but have different default values for their order= + arguments, and this function always passes sub-classes through.) + + See also + -------- + numpy.copy : Similar function with different default behavior + numpy.copyto + + Notes + ----- + This function is the preferred method for creating an array copy. The + function :func:`numpy.copy` is similar, but it defaults to using order 'K', + and will not pass sub-classes through by default. + + Examples + -------- + >>> import numpy as np + >>> x = np.array([[1,2,3],[4,5,6]], order='F') + + >>> y = x.copy() + + >>> x.fill(0) + + >>> x + array([[0, 0, 0], + [0, 0, 0]]) + + >>> y + array([[1, 2, 3], + [4, 5, 6]]) + + >>> y.flags['C_CONTIGUOUS'] + True + + For arrays containing Python objects (e.g. dtype=object), + the copy is a shallow one. The new array will contain the + same object which may lead to surprises if that object can + be modified (is mutable): + + >>> a = np.array([1, 'm', [2, 3, 4]], dtype=object) + >>> b = a.copy() + >>> b[2][0] = 10 + >>> a + array([1, 'm', list([10, 3, 4])], dtype=object) + + To ensure all elements within an ``object`` array are copied, + use `copy.deepcopy`: + + >>> import copy + >>> a = np.array([1, 'm', [2, 3, 4]], dtype=object) + >>> c = copy.deepcopy(a) + >>> c[2][0] = 10 + >>> c + array([1, 'm', list([10, 3, 4])], dtype=object) + >>> a + array([1, 'm', list([2, 3, 4])], dtype=object) + """) + +_array_method_doc('cumprod', "axis=None, dtype=None, out=None", + """ + a.cumprod(axis=None, dtype=None, out=None) + + Return the cumulative product of the elements along the given axis. + + Refer to `numpy.cumprod` for full documentation. + + See Also + -------- + numpy.cumprod : equivalent function + """) + +_array_method_doc('cumsum', "axis=None, dtype=None, out=None", + """ + a.cumsum(axis=None, dtype=None, out=None) + + Return the cumulative sum of the elements along the given axis. + + Refer to `numpy.cumsum` for full documentation. + + See Also + -------- + numpy.cumsum : equivalent function + """) + +_array_method_doc('diagonal', "offset=0, axis1=0, axis2=1", + """ + a.diagonal(offset=0, axis1=0, axis2=1) + + Return specified diagonals. In NumPy 1.9 the returned array is a + read-only view instead of a copy as in previous NumPy versions. In + a future version the read-only restriction will be removed. + + Refer to :func:`numpy.diagonal` for full documentation. + + See Also + -------- + numpy.diagonal : equivalent function + """) + +_array_method_doc('dump', "file", + """ + a.dump(file) + + Dump a pickle of the array to the specified file. + The array can be read back with pickle.load or numpy.load. + + Parameters + ---------- + file : str or Path + A string naming the dump file. + """) + +_array_method_doc('dumps', "", + """ + a.dumps() + + Returns the pickle of the array as a string. + ``pickle.loads`` will convert the string back to an array. + + Parameters + ---------- + None + """) + +_array_method_doc('fill', "value", + """ + a.fill(value) + + Fill the array with a scalar value. + + Parameters + ---------- + value : scalar + All elements of `a` will be assigned this value. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([1, 2]) + >>> a.fill(0) + >>> a + array([0, 0]) + >>> a = np.empty(2) + >>> a.fill(1) + >>> a + array([1., 1.]) + + Fill expects a scalar value and always behaves the same as assigning + to a single array element. The following is a rare example where this + distinction is important: + + >>> a = np.array([None, None], dtype=object) + >>> a[0] = np.array(3) + >>> a + array([array(3), None], dtype=object) + >>> a.fill(np.array(3)) + >>> a + array([array(3), array(3)], dtype=object) + + Where other forms of assignments will unpack the array being assigned: + + >>> a[...] = np.array(3) + >>> a + array([3, 3], dtype=object) + """) + +_array_method_doc('flatten', "order='C'", + """ + a.flatten(order='C') + + Return a copy of the array collapsed into one dimension. + + Parameters + ---------- + order : {'C', 'F', 'A', 'K'}, optional + 'C' means to flatten in row-major (C-style) order. + 'F' means to flatten in column-major (Fortran- + style) order. 'A' means to flatten in column-major + order if `a` is Fortran *contiguous* in memory, + row-major order otherwise. 'K' means to flatten + `a` in the order the elements occur in memory. + The default is 'C'. + + Returns + ------- + y : ndarray + A copy of the input array, flattened to one dimension. + + See Also + -------- + ravel : Return a flattened array. + flat : A 1-D flat iterator over the array. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1,2], [3,4]]) + >>> a.flatten() + array([1, 2, 3, 4]) + >>> a.flatten('F') + array([1, 3, 2, 4]) + """) + +_array_method_doc('getfield', "dtype, offset=0", + """ + a.getfield(dtype, offset=0) + + Returns a field of the given array as a certain type. + + A field is a view of the array data with a given data-type. The values in + the view are determined by the given type and the offset into the current + array in bytes. The offset needs to be such that the view dtype fits in the + array dtype; for example an array of dtype complex128 has 16-byte elements. + If taking a view with a 32-bit integer (4 bytes), the offset needs to be + between 0 and 12 bytes. + + Parameters + ---------- + dtype : str or dtype + The data type of the view. The dtype size of the view can not be larger + than that of the array itself. + offset : int + Number of bytes to skip before beginning the element view. + + Examples + -------- + >>> import numpy as np + >>> x = np.diag([1.+1.j]*2) + >>> x[1, 1] = 2 + 4.j + >>> x + array([[1.+1.j, 0.+0.j], + [0.+0.j, 2.+4.j]]) + >>> x.getfield(np.float64) + array([[1., 0.], + [0., 2.]]) + + By choosing an offset of 8 bytes we can select the complex part of the + array for our view: + + >>> x.getfield(np.float64, offset=8) + array([[1., 0.], + [0., 4.]]) + """) + +_array_method_doc('item', "*args", + """ + a.item(*args) + + Copy an element of an array to a standard Python scalar and return it. + + Parameters + ---------- + \\*args : Arguments (variable number and type) + + * none: in this case, the method only works for arrays + with one element (`a.size == 1`), which element is + copied into a standard Python scalar object and returned. + + * int_type: this argument is interpreted as a flat index into + the array, specifying which element to copy and return. + + * tuple of int_types: functions as does a single int_type argument, + except that the argument is interpreted as an nd-index into the + array. + + Returns + ------- + z : Standard Python scalar object + A copy of the specified element of the array as a suitable + Python scalar + + Notes + ----- + When the data type of `a` is longdouble or clongdouble, item() returns + a scalar array object because there is no available Python scalar that + would not lose information. Void arrays return a buffer object for item(), + unless fields are defined, in which case a tuple is returned. + + `item` is very similar to a[args], except, instead of an array scalar, + a standard Python scalar is returned. This can be useful for speeding up + access to elements of the array and doing arithmetic on elements of the + array using Python's optimized math. + + Examples + -------- + >>> import numpy as np + >>> np.random.seed(123) + >>> x = np.random.randint(9, size=(3, 3)) + >>> x + array([[2, 2, 6], + [1, 3, 6], + [1, 0, 1]]) + >>> x.item(3) + 1 + >>> x.item(7) + 0 + >>> x.item((0, 1)) + 2 + >>> x.item((2, 2)) + 1 + + For an array with object dtype, elements are returned as-is. + + >>> a = np.array([np.int64(1)], dtype=object) + >>> a.item() #return np.int64 + np.int64(1) + """) + +_KWARGS_REDUCE = "keepdims=, initial=, where=" + +_array_method_doc('max', "axis=None, out=None, **kwargs", + f""" + a.max(axis=None, out=None, *, {_KWARGS_REDUCE}) + + Return the maximum along a given axis. + + Refer to `numpy.amax` for full documentation. + + See Also + -------- + numpy.amax : equivalent function + """) + +_array_method_doc('min', "axis=None, out=None, **kwargs", + f""" + a.min(axis=None, out=None, *, {_KWARGS_REDUCE}) + + Return the minimum along a given axis. + + Refer to `numpy.amin` for full documentation. + + See Also + -------- + numpy.amin : equivalent function + """) + +_array_method_doc('prod', "axis=None, dtype=None, out=None, **kwargs", + f""" + a.prod(axis=None, dtype=None, out=None, *, {_KWARGS_REDUCE}) + + Return the product of the array elements over the given axis + + Refer to `numpy.prod` for full documentation. + + See Also + -------- + numpy.prod : equivalent function + """) + +_array_method_doc('sum', "axis=None, dtype=None, out=None, **kwargs", + f""" + a.sum(axis=None, dtype=None, out=None, *, {_KWARGS_REDUCE}) + + Return the sum of the array elements over the given axis. + + Refer to `numpy.sum` for full documentation. + + See Also + -------- + numpy.sum : equivalent function + """) + +_array_method_doc('mean', "axis=None, dtype=None, out=None, **kwargs", + """ + a.mean(axis=None, dtype=None, out=None, *, keepdims=, where=) + + Returns the average of the array elements along given axis. + + Refer to `numpy.mean` for full documentation. + + See Also + -------- + numpy.mean : equivalent function + """) + +_array_method_doc('nonzero', "", + """ + a.nonzero() + + Return the indices of the elements that are non-zero. + + Refer to `numpy.nonzero` for full documentation. + + See Also + -------- + numpy.nonzero : equivalent function + """) + +_array_method_doc('put', "indices, values, /, mode='raise'", + """ + a.put(indices, values, mode='raise') + + Set ``a.flat[n] = values[n]`` for all ``n`` in indices. + + Refer to `numpy.put` for full documentation. + + See Also + -------- + numpy.put : equivalent function + """) + +_array_method_doc('ravel', "order='C'", + """ + a.ravel(order='C') + + Return a flattened array. + + Refer to `numpy.ravel` for full documentation. + + See Also + -------- + numpy.ravel : equivalent function + ndarray.flat : a flat iterator on the array. + """) + +_array_method_doc('repeat', "repeats, /, axis=None", + """ + a.repeat(repeats, axis=None) + + Repeat elements of an array. + + Refer to `numpy.repeat` for full documentation. + + See Also + -------- + numpy.repeat : equivalent function + """) + +_array_method_doc('reshape', "*shape, order='C', copy=None", + """ + a.reshape(shape, /, *, order='C', copy=None) + a.reshape(*shape, order='C', copy=None) + + Returns an array containing the same data with a new shape. + + Refer to `numpy.reshape` for full documentation. + + See Also + -------- + numpy.reshape : equivalent function + + Notes + ----- + Unlike the free function `numpy.reshape`, this method on `ndarray` allows + the elements of the shape parameter to be passed in as separate arguments. + For example, ``a.reshape(4, 2)`` is equivalent to ``a.reshape((4, 2))``. + """) + +_array_method_doc('resize', "*new_shape, refcheck=True", + """ + a.resize(new_shape, /, *, refcheck=True) + a.resize(*new_shape, refcheck=True) + + Change shape and size of array in-place. + + Parameters + ---------- + new_shape : tuple of ints, or `n` ints + Shape of resized array. + refcheck : bool, optional + If False, reference count will not be checked. Default is True. + See Notes below for more explanation. + + Returns + ------- + None + + Raises + ------ + ValueError + If `a` does not own its own data or references or views to may exist. + + See Also + -------- + resize : Return a new array with the specified shape. + + Notes + ----- + This reallocates space for the data area if necessary. + + Only contiguous arrays (data elements consecutive in memory) can be + resized. + + Reallocating arrays in-place can often lead to memory fragmentation and + should be avoided. If the goal is to reclaim over-allocated memory, + alternatives are to create a view or a copy of just the desired data, or + using two passes to build the array: one to cheaply determine the shape and + another to allocate and fill. Benchmark your use case to determine what is + optimum. You may be surprised to find ``resize`` actually slows down or + bloats your application. + + The purpose of the reference count check is to make sure you + do not use this array as a buffer for another Python object and then + reallocate the memory. + + On Python 3.13 and older, the check allows objects with exactly one + reference to be reallocated in-place. On Python 3.14 and newer, the array + must be uniquely referenced. See [1]_ for more details. + + If you are sure that you have not shared the memory for this array with + another Python object, then you may safely set `refcheck` to False. + + + References + ---------- + .. [1] Python 3.14 What's New, https://docs.python.org/3/whatsnew/3.14.html#whatsnew314-refcount + + Examples + -------- + Shrinking an array: array is flattened (in the order that the data are + stored in memory), resized, and reshaped: + + >>> import numpy as np + + >>> a = np.array([[0, 1], [2, 3]], order='C') + >>> a.resize((2, 1)) + >>> a + array([[0], + [1]]) + + >>> a = np.array([[0, 1], [2, 3]], order='F') + >>> a.resize((2, 1)) + >>> a + array([[0], + [2]]) + + Enlarging an array: as above, but missing entries are filled with zeros: + + >>> b = np.array([[0, 1], [2, 3]]) + >>> b.resize(2, 3) # new_shape parameter doesn't have to be a tuple + >>> b + array([[0, 1, 2], + [3, 0, 0]]) + + Referencing an array prevents resizing... + + >>> c = a + >>> a.resize((1, 1)) + Traceback (most recent call last): + ... + ValueError: cannot resize an array that references or is referenced ... + + Unless `refcheck` is False: + + >>> a.resize((1, 1), refcheck=False) + >>> a + array([[0]]) + >>> c + array([[0]]) + """) + +_array_method_doc('round', "decimals=0, out=None", + """ + a.round(decimals=0, out=None) + + Return `a` with each element rounded to the given number of decimals. + + Refer to `numpy.around` for full documentation. + + See Also + -------- + numpy.around : equivalent function + """) + +_array_method_doc('searchsorted', "v, /, side='left', sorter=None", + """ + a.searchsorted(v, side='left', sorter=None) + + Find indices where elements of `v` should be inserted in `a` to maintain order. + + For full documentation, see `numpy.searchsorted`. + + See Also + -------- + numpy.searchsorted : equivalent function + """) + +_array_method_doc('setfield', "val, /, dtype, offset=0", + """ + a.setfield(val, dtype, offset=0) + + Put a value into a specified place in a field defined by a data-type. + + Place `val` into `a`'s field defined by `dtype` and beginning `offset` + bytes into the field. + + Parameters + ---------- + val : object + Value to be placed in field. + dtype : dtype object + Data-type of the field in which to place `val`. + offset : int, optional + The number of bytes into the field at which to place `val`. + + Returns + ------- + None + + See Also + -------- + getfield + + Examples + -------- + >>> import numpy as np + >>> x = np.eye(3) + >>> x.getfield(np.float64) + array([[1., 0., 0.], + [0., 1., 0.], + [0., 0., 1.]]) + >>> x.setfield(3, np.int32) + >>> x.getfield(np.int32) + array([[3, 3, 3], + [3, 3, 3], + [3, 3, 3]], dtype=int32) + >>> x + array([[1.0e+000, 1.5e-323, 1.5e-323], + [1.5e-323, 1.0e+000, 1.5e-323], + [1.5e-323, 1.5e-323, 1.0e+000]]) + >>> x.setfield(np.eye(3), np.int32) + >>> x + array([[1., 0., 0.], + [0., 1., 0.], + [0., 0., 1.]]) + """) + +_array_method_doc('setflags', "*, write=None, align=None, uic=None", + """ + a.setflags(write=None, align=None, uic=None) + + Set array flags WRITEABLE, ALIGNED, WRITEBACKIFCOPY, + respectively. + + These Boolean-valued flags affect how numpy interprets the memory + area used by `a` (see Notes below). The ALIGNED flag can only + be set to True if the data is actually aligned according to the type. + The WRITEBACKIFCOPY flag can never be set + to True. The flag WRITEABLE can only be set to True if the array owns its + own memory, or the ultimate owner of the memory exposes a writeable buffer + interface, or is a string. (The exception for string is made so that + unpickling can be done without copying memory.) + + Parameters + ---------- + write : bool, optional + Describes whether or not `a` can be written to. + align : bool, optional + Describes whether or not `a` is aligned properly for its type. + uic : bool, optional + Describes whether or not `a` is a copy of another "base" array. + + Notes + ----- + Array flags provide information about how the memory area used + for the array is to be interpreted. There are 7 Boolean flags + in use, only three of which can be changed by the user: + WRITEBACKIFCOPY, WRITEABLE, and ALIGNED. + + WRITEABLE (W) the data area can be written to; + + ALIGNED (A) the data and strides are aligned appropriately for the hardware + (as determined by the compiler); + + WRITEBACKIFCOPY (X) this array is a copy of some other array (referenced + by .base). When the C-API function PyArray_ResolveWritebackIfCopy is + called, the base array will be updated with the contents of this array. + + All flags can be accessed using the single (upper case) letter as well + as the full name. + + Examples + -------- + >>> import numpy as np + >>> y = np.array([[3, 1, 7], + ... [2, 0, 0], + ... [8, 5, 9]]) + >>> y + array([[3, 1, 7], + [2, 0, 0], + [8, 5, 9]]) + >>> y.flags + C_CONTIGUOUS : True + F_CONTIGUOUS : False + OWNDATA : True + WRITEABLE : True + ALIGNED : True + WRITEBACKIFCOPY : False + >>> y.setflags(write=0, align=0) + >>> y.flags + C_CONTIGUOUS : True + F_CONTIGUOUS : False + OWNDATA : True + WRITEABLE : False + ALIGNED : False + WRITEBACKIFCOPY : False + >>> y.setflags(uic=1) + Traceback (most recent call last): + File "", line 1, in + ValueError: cannot set WRITEBACKIFCOPY flag to True + """) + +_array_method_doc('sort', "axis=-1, kind=None, order=None, *, stable=None", + """ + a.sort(axis=-1, kind=None, order=None, *, stable=None) + + Sort an array in-place. Refer to `numpy.sort` for full documentation. + + Parameters + ---------- + axis : int, optional + Axis along which to sort. Default is -1, which means sort along the + last axis. + kind : {'quicksort', 'mergesort', 'heapsort', 'stable'}, optional + Sorting algorithm. The default is 'quicksort'. Note that both 'stable' + and 'mergesort' use timsort under the covers and, in general, the + actual implementation will vary with datatype. The 'mergesort' option + is retained for backwards compatibility. + order : str or list of str, optional + When `a` is an array with fields defined, this argument specifies + which fields to compare first, second, etc. A single field can + be specified as a string, and not all fields need be specified, + but unspecified fields will still be used, in the order in which + they come up in the dtype, to break ties. + stable : bool, optional + Sort stability. If ``True``, the returned array will maintain + the relative order of ``a`` values which compare as equal. + If ``False`` or ``None``, this is not guaranteed. Internally, + this option selects ``kind='stable'``. Default: ``None``. + + .. versionadded:: 2.0.0 + + See Also + -------- + numpy.sort : Return a sorted copy of an array. + numpy.argsort : Indirect sort. + numpy.lexsort : Indirect stable sort on multiple keys. + numpy.searchsorted : Find elements in sorted array. + numpy.partition: Partial sort. + + Notes + ----- + See `numpy.sort` for notes on the different sorting algorithms. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1,4], [3,1]]) + >>> a.sort(axis=1) + >>> a + array([[1, 4], + [1, 3]]) + >>> a.sort(axis=0) + >>> a + array([[1, 3], + [1, 4]]) + + Use the `order` keyword to specify a field to use when sorting a + structured array: + + >>> a = np.array([('a', 2), ('c', 1)], dtype=[('x', 'S1'), ('y', int)]) + >>> a.sort(order='y') + >>> a + array([(b'c', 1), (b'a', 2)], + dtype=[('x', 'S1'), ('y', '>> import numpy as np + >>> a = np.uint32([1, 2]) + >>> a_list = list(a) + >>> a_list + [np.uint32(1), np.uint32(2)] + >>> type(a_list[0]) + + >>> a_tolist = a.tolist() + >>> a_tolist + [1, 2] + >>> type(a_tolist[0]) + + + Additionally, for a 2D array, ``tolist`` applies recursively: + + >>> a = np.array([[1, 2], [3, 4]]) + >>> list(a) + [array([1, 2]), array([3, 4])] + >>> a.tolist() + [[1, 2], [3, 4]] + + The base case for this recursion is a 0D array: + + >>> a = np.array(1) + >>> list(a) + Traceback (most recent call last): + ... + TypeError: iteration over a 0-d array + >>> a.tolist() + 1 + """) + +_array_method_doc('tobytes', "order='C'", + """ + a.tobytes(order='C') + + Construct Python bytes containing the raw data bytes in the array. + + Constructs Python bytes showing a copy of the raw contents of + data memory. The bytes object is produced in C-order by default. + This behavior is controlled by the ``order`` parameter. + + Parameters + ---------- + order : {'C', 'F', 'A'}, optional + Controls the memory layout of the bytes object. 'C' means C-order, + 'F' means F-order, 'A' (short for *Any*) means 'F' if `a` is + Fortran contiguous, 'C' otherwise. Default is 'C'. + + Returns + ------- + s : bytes + Python bytes exhibiting a copy of `a`'s raw data. + + See also + -------- + frombuffer + Inverse of this operation, construct a 1-dimensional array from Python + bytes. + + Examples + -------- + >>> import numpy as np + >>> x = np.array([[0, 1], [2, 3]], dtype='>> x.tobytes() + b'\\x00\\x00\\x01\\x00\\x02\\x00\\x03\\x00' + >>> x.tobytes('C') == x.tobytes() + True + >>> x.tobytes('F') + b'\\x00\\x00\\x02\\x00\\x01\\x00\\x03\\x00' + """) + +_array_method_doc('trace', "offset=0, axis1=0, axis2=1, dtype=None, out=None", + """ + a.trace(offset=0, axis1=0, axis2=1, dtype=None, out=None) + + Return the sum along diagonals of the array. + + Refer to `numpy.trace` for full documentation. + + See Also + -------- + numpy.trace : equivalent function + """) + +_array_method_doc('transpose', "*axes", + """ + a.transpose(*axes) + + Returns a view of the array with axes transposed. + + Refer to `numpy.transpose` for full documentation. + + Parameters + ---------- + axes : None, tuple of ints, or `n` ints + + * None or no argument: reverses the order of the axes. + + * tuple of ints: `i` in the `j`-th place in the tuple means that the + array's `i`-th axis becomes the transposed array's `j`-th axis. + + * `n` ints: same as an n-tuple of the same ints (this form is + intended simply as a "convenience" alternative to the tuple form). + + Returns + ------- + p : ndarray + View of the array with its axes suitably permuted. + + See Also + -------- + transpose : Equivalent function. + ndarray.T : Array property returning the array transposed. + ndarray.reshape : Give a new shape to an array without changing its data. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1, 2], [3, 4]]) + >>> a + array([[1, 2], + [3, 4]]) + >>> a.transpose() + array([[1, 3], + [2, 4]]) + >>> a.transpose((1, 0)) + array([[1, 3], + [2, 4]]) + >>> a.transpose(1, 0) + array([[1, 3], + [2, 4]]) + + >>> a = np.array([1, 2, 3, 4]) + >>> a + array([1, 2, 3, 4]) + >>> a.transpose() + array([1, 2, 3, 4]) + """) + +_array_method_doc('view', "*args, **kwargs", + """ + a.view([dtype][, type]) + + New view of array with the same data. + + .. note:: + Passing None for ``dtype`` is different from omitting the parameter, + since the former invokes ``dtype(None)`` which is an alias for + ``dtype('float64')``. + + Parameters + ---------- + dtype : data-type or ndarray sub-class, optional + Data-type descriptor of the returned view, e.g., float32 or int16. + Omitting it results in the view having the same data-type as `a`. + This argument can also be specified as an ndarray sub-class, which + then specifies the type of the returned object (this is equivalent to + setting the ``type`` parameter). + type : Python type, optional + Type of the returned view, e.g., ndarray or matrix. Again, omission + of the parameter results in type preservation. + + Notes + ----- + ``a.view()`` is used two different ways: + + ``a.view(some_dtype)`` or ``a.view(dtype=some_dtype)`` constructs a view + of the array's memory with a different data-type. This can cause a + reinterpretation of the bytes of memory. + + ``a.view(ndarray_subclass)`` or ``a.view(type=ndarray_subclass)`` just + returns an instance of `ndarray_subclass` that looks at the same array + (same shape, dtype, etc.) This does not cause a reinterpretation of the + memory. + + For ``a.view(some_dtype)``, if ``some_dtype`` has a different number of + bytes per entry than the previous dtype (for example, converting a regular + array to a structured array), then the last axis of ``a`` must be + contiguous. This axis will be resized in the result. + + .. versionchanged:: 1.23.0 + Only the last axis needs to be contiguous. Previously, the entire array + had to be C-contiguous. + + Examples + -------- + >>> import numpy as np + >>> x = np.array([(-1, 2)], dtype=[('a', np.int8), ('b', np.int8)]) + + Viewing array data using a different type and dtype: + + >>> nonneg = np.dtype([("a", np.uint8), ("b", np.uint8)]) + >>> y = x.view(dtype=nonneg, type=np.recarray) + >>> x["a"] + array([-1], dtype=int8) + >>> y.a + array([255], dtype=uint8) + + Creating a view on a structured array so it can be used in calculations + + >>> x = np.array([(1, 2),(3,4)], dtype=[('a', np.int8), ('b', np.int8)]) + >>> xv = x.view(dtype=np.int8).reshape(-1,2) + >>> xv + array([[1, 2], + [3, 4]], dtype=int8) + >>> xv.mean(0) + array([2., 3.]) + + Making changes to the view changes the underlying array + + >>> xv[0,1] = 20 + >>> x + array([(1, 20), (3, 4)], dtype=[('a', 'i1'), ('b', 'i1')]) + + Using a view to convert an array to a recarray: + + >>> z = x.view(np.recarray) + >>> z.a + array([1, 3], dtype=int8) + + Views share data: + + >>> x[0] = (9, 10) + >>> z[0] + np.record((9, 10), dtype=[('a', 'i1'), ('b', 'i1')]) + + Views that change the dtype size (bytes per entry) should normally be + avoided on arrays defined by slices, transposes, fortran-ordering, etc.: + + >>> x = np.array([[1, 2, 3], [4, 5, 6]], dtype=np.int16) + >>> y = x[:, ::2] + >>> y + array([[1, 3], + [4, 6]], dtype=int16) + >>> y.view(dtype=[('width', np.int16), ('length', np.int16)]) + Traceback (most recent call last): + ... + ValueError: To change to a dtype of a different size, the last axis must be contiguous + >>> z = y.copy() + >>> z.view(dtype=[('width', np.int16), ('length', np.int16)]) + array([[(1, 3)], + [(4, 6)]], dtype=[('width', '>> x = np.arange(2 * 3 * 4, dtype=np.int8).reshape(2, 3, 4) + >>> x.transpose(1, 0, 2).view(np.int16) + array([[[ 256, 770], + [3340, 3854]], + + [[1284, 1798], + [4368, 4882]], + + [[2312, 2826], + [5396, 5910]]], dtype=int16) + """) + + +############################################################################## +# +# umath functions +# +############################################################################## + +add_newdoc('numpy._core.umath', 'frompyfunc', + """ + frompyfunc(func, /, nin, nout, **kwargs) + -- + + frompyfunc(func, /, nin, nout, *[, identity]) + + Takes an arbitrary Python function and returns a NumPy ufunc. + + Can be used, for example, to add broadcasting to a built-in Python + function (see Examples section). + + Parameters + ---------- + func : Python function object + An arbitrary Python function. + nin : int + The number of input arguments. + nout : int + The number of objects returned by `func`. + identity : object, optional + The value to use for the `~numpy.ufunc.identity` attribute of the resulting + object. If specified, this is equivalent to setting the underlying + C ``identity`` field to ``PyUFunc_IdentityValue``. + If omitted, the identity is set to ``PyUFunc_None``. Note that this is + _not_ equivalent to setting the identity to ``None``, which implies the + operation is reorderable. + + Returns + ------- + out : ufunc + Returns a NumPy universal function (``ufunc``) object. + + See Also + -------- + vectorize : Evaluates pyfunc over input arrays using broadcasting rules of numpy. + + Notes + ----- + The returned ufunc always returns PyObject arrays. + + Examples + -------- + Use frompyfunc to add broadcasting to the Python function ``oct``: + + >>> import numpy as np + >>> oct_array = np.frompyfunc(oct, 1, 1) + >>> oct_array(np.array((10, 30, 100))) + array(['0o12', '0o36', '0o144'], dtype=object) + >>> np.array((oct(10), oct(30), oct(100))) # for comparison + array(['0o12', '0o36', '0o144'], dtype='doc is NULL.) + + Parameters + ---------- + ufunc : numpy.ufunc + A ufunc whose current doc is NULL. + new_docstring : string + The new docstring for the ufunc. + + Notes + ----- + This method allocates memory for new_docstring on + the heap. Technically this creates a memory leak, since this + memory will not be reclaimed until the end of the program + even if the ufunc itself is removed. However this will only + be a problem if the user is repeatedly creating ufuncs with + no documentation, adding documentation via add_newdoc_ufunc, + and then throwing away the ufunc. + """) + +add_newdoc('numpy._core.multiarray', 'get_handler_name', + """ + get_handler_name(a: ndarray) -> str | None + + Return the name of the memory handler used by `a`. If not provided, return + the name of the memory handler that will be used to allocate data for the + next `ndarray` in this context. May return None if `a` does not own its + memory, in which case you can traverse ``a.base`` for a memory handler. + """) + +add_newdoc('numpy._core.multiarray', 'get_handler_version', + """ + get_handler_version(a: ndarray) -> int,None + + Return the version of the memory handler used by `a`. If not provided, + return the version of the memory handler that will be used to allocate data + for the next `ndarray` in this context. May return None if `a` does not own + its memory, in which case you can traverse ``a.base`` for a memory handler. + """) + +add_newdoc('numpy._core._multiarray_umath', '_array_converter', + """ + _array_converter(*array_likes) + + Helper to convert one or more objects to arrays. Integrates machinery + to deal with the ``result_type`` and ``__array_wrap__``. + + The reason for this is that e.g. ``result_type`` needs to convert to arrays + to find the ``dtype``. But converting to an array before calling + ``result_type`` would incorrectly "forget" whether it was a Python int, + float, or complex. + """) + +add_newdoc( + 'numpy._core._multiarray_umath', '_array_converter', ('scalar_input', + """ + A tuple which indicates for each input whether it was a scalar that + was coerced to a 0-D array (and was not already an array or something + converted via a protocol like ``__array__()``). + """)) + +add_newdoc('numpy._core._multiarray_umath', '_array_converter', ('as_arrays', + """ + as_arrays(/, subok=True, pyscalars="convert_if_no_array") + + Return the inputs as arrays or scalars. + + Parameters + ---------- + subok : True or False, optional + Whether array subclasses are preserved. + pyscalars : {"convert", "preserve", "convert_if_no_array"}, optional + To allow NEP 50 weak promotion later, it may be desirable to preserve + Python scalars. As default, these are preserved unless all inputs + are Python scalars. "convert" enforces an array return. + """)) + +add_newdoc('numpy._core._multiarray_umath', '_array_converter', ('result_type', + """result_type(/, extra_dtype=None, ensure_inexact=False) + + Find the ``result_type`` just as ``np.result_type`` would, but taking + into account that the original inputs (before converting to an array) may + have been Python scalars with weak promotion. + + Parameters + ---------- + extra_dtype : dtype instance or class + An additional DType or dtype instance to promote (e.g. could be used + to ensure the result precision is at least float32). + ensure_inexact : True or False + When ``True``, ensures a floating point (or complex) result replacing + the ``arr * 1.`` or ``result_type(..., 0.0)`` pattern. + """)) + +add_newdoc('numpy._core._multiarray_umath', '_array_converter', ('wrap', + """ + wrap(arr, /, to_scalar=None) + + Call ``__array_wrap__`` on ``arr`` if ``arr`` is not the same subclass + as the input the ``__array_wrap__`` method was retrieved from. + + Parameters + ---------- + arr : ndarray + The object to be wrapped. Normally an ndarray or subclass, + although for backward compatibility NumPy scalars are also accepted + (these will be converted to a NumPy array before being passed on to + the ``__array_wrap__`` method). + to_scalar : {True, False, None}, optional + When ``True`` will convert a 0-d array to a scalar via ``result[()]`` + (with a fast-path for non-subclasses). If ``False`` the result should + be an array-like (as ``__array_wrap__`` is free to return a non-array). + By default (``None``), a scalar is returned if all inputs were scalar. + """)) + + +add_newdoc('numpy._core.multiarray', '_get_madvise_hugepage', + """ + _get_madvise_hugepage() -> bool + + Get use of ``madvise (2)`` MADV_HUGEPAGE support when + allocating the array data. Returns the currently set value. + See `global_state` for more information. + """) + +add_newdoc('numpy._core.multiarray', '_set_madvise_hugepage', + """ + _set_madvise_hugepage(enabled: bool) -> bool + + Set or unset use of ``madvise (2)`` MADV_HUGEPAGE support when + allocating the array data. Returns the previously set value. + See `global_state` for more information. + """) + + +############################################################################## +# +# Documentation for ufunc attributes and methods +# +############################################################################## + + +############################################################################## +# +# ufunc object +# +############################################################################## + +add_newdoc('numpy._core', 'ufunc', + """ + Functions that operate element by element on whole arrays. + + To see the documentation for a specific ufunc, use `info`. For + example, ``np.info(np.sin)``. Because ufuncs are written in C + (for speed) and linked into Python with NumPy's ufunc facility, + Python's help() function finds this page whenever help() is called + on a ufunc. + + A detailed explanation of ufuncs can be found in the docs for :ref:`ufuncs`. + + **Calling ufuncs:** ``op(*x[, out], where=True, **kwargs)`` + + Apply `op` to the arguments `*x` elementwise, broadcasting the arguments. + + The broadcasting rules are: + + * Dimensions of length 1 may be prepended to either array. + * Arrays may be repeated along dimensions of length 1. + + Parameters + ---------- + *x : array_like + Input arrays. + out : ndarray, None, ..., or tuple of ndarray and None, optional + Location(s) into which the result(s) are stored. + If not provided or None, new array(s) are created by the ufunc. + If passed as a keyword argument, can be Ellipses (``out=...``) to + ensure an array is returned even if the result is 0-dimensional, + or a tuple with length equal to the number of outputs (where None + can be used for allocation by the ufunc). + + .. versionadded:: 2.3 + Support for ``out=...`` was added. + + where : array_like, optional + This condition is broadcast over the input. At locations where the + condition is True, the `out` array will be set to the ufunc result. + Elsewhere, the `out` array will retain its original value. + Note that if an uninitialized `out` array is created via the default + ``out=None``, locations within it where the condition is False will + remain uninitialized. + **kwargs + For other keyword-only arguments, see the :ref:`ufunc docs `. + + Returns + ------- + r : ndarray or tuple of ndarray + `r` will have the shape that the arrays in `x` broadcast to; if `out` is + provided, it will be returned. If not, `r` will be allocated and + may contain uninitialized values. If the function has more than one + output, then the result will be a tuple of arrays. + + """) + + +############################################################################## +# +# ufunc attributes +# +############################################################################## + +add_newdoc('numpy._core', 'ufunc', ('identity', + """ + The identity value. + + Data attribute containing the identity element for the ufunc, + if it has one. If it does not, the attribute value is None. + + Examples + -------- + >>> import numpy as np + >>> np.add.identity + 0 + >>> np.multiply.identity + 1 + >>> print(np.power.identity) + None + >>> print(np.exp.identity) + None + """)) + +add_newdoc('numpy._core', 'ufunc', ('nargs', + """ + The number of arguments. + + Data attribute containing the number of arguments the ufunc takes, including + optional ones. + + Notes + ----- + Typically this value will be one more than what you might expect + because all ufuncs take the optional "out" argument. + + Examples + -------- + >>> import numpy as np + >>> np.add.nargs + 3 + >>> np.multiply.nargs + 3 + >>> np.power.nargs + 3 + >>> np.exp.nargs + 2 + """)) + +add_newdoc('numpy._core', 'ufunc', ('nin', + """ + The number of inputs. + + Data attribute containing the number of arguments the ufunc treats as input. + + Examples + -------- + >>> import numpy as np + >>> np.add.nin + 2 + >>> np.multiply.nin + 2 + >>> np.power.nin + 2 + >>> np.exp.nin + 1 + """)) + +add_newdoc('numpy._core', 'ufunc', ('nout', + """ + The number of outputs. + + Data attribute containing the number of arguments the ufunc treats as output. + + Notes + ----- + Since all ufuncs can take output arguments, this will always be at least 1. + + Examples + -------- + >>> import numpy as np + >>> np.add.nout + 1 + >>> np.multiply.nout + 1 + >>> np.power.nout + 1 + >>> np.exp.nout + 1 + + """)) + +add_newdoc('numpy._core', 'ufunc', ('ntypes', + """ + The number of types. + + The number of numerical NumPy types - of which there are 18 total - on which + the ufunc can operate. + + See Also + -------- + numpy.ufunc.types + + Examples + -------- + >>> import numpy as np + >>> np.add.ntypes + 22 + >>> np.multiply.ntypes + 23 + >>> np.power.ntypes + 21 + >>> np.exp.ntypes + 10 + >>> np.remainder.ntypes + 16 + + """)) + +add_newdoc('numpy._core', 'ufunc', ('types', + """ + Returns a list with types grouped input->output. + + Data attribute listing the data-type "Domain-Range" groupings the ufunc can + deliver. The data-types are given using the character codes. + + See Also + -------- + numpy.ufunc.ntypes + + Examples + -------- + >>> import numpy as np + >>> np.add.types + ['??->?', 'bb->b', 'BB->B', 'hh->h', 'HH->H', 'ii->i', 'II->I', ... + + >>> np.power.types + ['bb->b', 'BB->B', 'hh->h', 'HH->H', 'ii->i', 'II->I', 'll->l', ... + + >>> np.exp.types + ['e->e', 'f->f', 'd->d', 'f->f', 'd->d', 'g->g', 'F->F', 'D->D', 'G->G', 'O->O'] + + >>> np.remainder.types + ['bb->b', 'BB->B', 'hh->h', 'HH->H', 'ii->i', 'II->I', 'll->l', ... + + """)) + +add_newdoc('numpy._core', 'ufunc', ('signature', + """ + Definition of the core elements a generalized ufunc operates on. + + The signature determines how the dimensions of each input/output array + are split into core and loop dimensions: + + 1. Each dimension in the signature is matched to a dimension of the + corresponding passed-in array, starting from the end of the shape tuple. + 2. Core dimensions assigned to the same label in the signature must have + exactly matching sizes, no broadcasting is performed. + 3. The core dimensions are removed from all inputs and the remaining + dimensions are broadcast together, defining the loop dimensions. + + Notes + ----- + Generalized ufuncs are used internally in many linalg functions, and in + the testing suite; the examples below are taken from these. + For ufuncs that operate on scalars, the signature is None, which is + equivalent to '()' for every argument. + + Examples + -------- + >>> import numpy as np + >>> np.linalg._umath_linalg.det.signature + '(m,m)->()' + >>> np.matmul.signature + '(n?,k),(k,m?)->(n?,m?)' + >>> np.add.signature is None + True # equivalent to '(),()->()' + """)) + +############################################################################## +# +# ufunc methods +# +############################################################################## + +add_newdoc('numpy._core', 'ufunc', ('reduce', + """ + reduce($self, array, /, axis=0, dtype=None, out=None, **kwargs) + -- + + reduce(array, axis=0, dtype=None, out=None, keepdims=False, initial=, where=True) + + Reduces `array`'s dimension by one, by applying ufunc along one axis. + + Let :math:`array.shape = (N_0, ..., N_i, ..., N_{M-1})`. Then + :math:`ufunc.reduce(array, axis=i)[k_0, ..,k_{i-1}, k_{i+1}, .., k_{M-1}]` = + the result of iterating `j` over :math:`range(N_i)`, cumulatively applying + ufunc to each :math:`array[k_0, ..,k_{i-1}, j, k_{i+1}, .., k_{M-1}]`. + For a one-dimensional array, reduce produces results equivalent to: + :: + + r = op.identity # op = ufunc + for i in range(len(A)): + r = op(r, A[i]) + return r + + For example, add.reduce() is equivalent to sum(). + + Parameters + ---------- + array : array_like + The array to act on. + axis : None or int or tuple of ints, optional + Axis or axes along which a reduction is performed. + The default (`axis` = 0) is perform a reduction over the first + dimension of the input array. `axis` may be negative, in + which case it counts from the last to the first axis. + + If this is None, a reduction is performed over all the axes. + If this is a tuple of ints, a reduction is performed on multiple + axes, instead of a single axis or all the axes as before. + + For operations which are either not commutative or not associative, + doing a reduction over multiple axes is not well-defined. The + ufuncs do not currently raise an exception in this case, but will + likely do so in the future. + dtype : data-type code, optional + The data type used to perform the operation. Defaults to that of + ``out`` if given, and the data type of ``array`` otherwise (though + upcast to conserve precision for some cases, such as + ``numpy.add.reduce`` for integer or boolean input). + out : ndarray, None, ..., or tuple of ndarray and None, optional + Location into which the result is stored. + If not provided or None, a freshly-allocated array is returned. + If passed as a keyword argument, can be Ellipses (``out=...``) to + ensure an array is returned even if the result is 0-dimensional + (which is useful especially for object dtype), or a 1-element tuple + (latter for consistency with ``ufunc.__call__``). + + .. versionadded:: 2.3 + Support for ``out=...`` was added. + + keepdims : bool, optional + If this is set to True, the axes which are reduced are left + in the result as dimensions with size one. With this option, + the result will broadcast correctly against the original `array`. + initial : scalar, optional + The value with which to start the reduction. + If the ufunc has no identity or the dtype is object, this defaults + to None - otherwise it defaults to ufunc.identity. + If ``None`` is given, the first element of the reduction is used, + and an error is thrown if the reduction is empty. + where : array_like of bool, optional + A boolean array which is broadcasted to match the dimensions + of `array`, and selects elements to include in the reduction. Note + that for ufuncs like ``minimum`` that do not have an identity + defined, one has to pass in also ``initial``. + + Returns + ------- + r : ndarray + The reduced array. If `out` was supplied, `r` is a reference to it. + + Examples + -------- + >>> import numpy as np + >>> np.multiply.reduce([2,3,5]) + 30 + + A multi-dimensional array example: + + >>> X = np.arange(8).reshape((2,2,2)) + >>> X + array([[[0, 1], + [2, 3]], + [[4, 5], + [6, 7]]]) + >>> np.add.reduce(X, 0) + array([[ 4, 6], + [ 8, 10]]) + >>> np.add.reduce(X) # confirm: default axis value is 0 + array([[ 4, 6], + [ 8, 10]]) + >>> np.add.reduce(X, 1) + array([[ 2, 4], + [10, 12]]) + >>> np.add.reduce(X, 2) + array([[ 1, 5], + [ 9, 13]]) + + You can use the ``initial`` keyword argument to initialize the reduction + with a different value, and ``where`` to select specific elements to include: + + >>> np.add.reduce([10], initial=5) + 15 + >>> np.add.reduce(np.ones((2, 2, 2)), axis=(0, 2), initial=10) + array([14., 14.]) + >>> a = np.array([10., np.nan, 10]) + >>> np.add.reduce(a, where=~np.isnan(a)) + 20.0 + + Allows reductions of empty arrays where they would normally fail, i.e. + for ufuncs without an identity. + + >>> np.minimum.reduce([], initial=np.inf) + inf + >>> np.minimum.reduce([[1., 2.], [3., 4.]], initial=10., where=[True, False]) + array([ 1., 10.]) + >>> np.minimum.reduce([]) + Traceback (most recent call last): + ... + ValueError: zero-size array to reduction operation minimum which has no identity + """)) + +add_newdoc('numpy._core', 'ufunc', ('accumulate', + """ + accumulate($self, array, /, axis=0, dtype=None, out=None) + -- + + accumulate(array, axis=0, dtype=None, out=None) + + Accumulate the result of applying the operator to all elements. + + For a one-dimensional array, accumulate produces results equivalent to:: + + r = np.empty(len(A)) + t = op.identity # op = the ufunc being applied to A's elements + for i in range(len(A)): + t = op(t, A[i]) + r[i] = t + return r + + For example, add.accumulate() is equivalent to np.cumsum(). + + For a multi-dimensional array, accumulate is applied along only one + axis (axis zero by default; see Examples below) so repeated use is + necessary if one wants to accumulate over multiple axes. + + Parameters + ---------- + array : array_like + The array to act on. + axis : int, optional + The axis along which to apply the accumulation; default is zero. + dtype : data-type code, optional + The data-type used to represent the intermediate results. Defaults + to the data-type of the output array if such is provided, or the + data-type of the input array if no output array is provided. + out : ndarray, None, or tuple of ndarray and None, optional + Location into which the result is stored. + If not provided or None, a freshly-allocated array is returned. + For consistency with ``ufunc.__call__``, if passed as a keyword + argument, can be Ellipses (``out=...``, which has the same effect + as None as an array is always returned), or a 1-element tuple. + + Returns + ------- + r : ndarray + The accumulated values. If `out` was supplied, `r` is a reference to + `out`. + + Examples + -------- + 1-D array examples: + + >>> import numpy as np + >>> np.add.accumulate([2, 3, 5]) + array([ 2, 5, 10]) + >>> np.multiply.accumulate([2, 3, 5]) + array([ 2, 6, 30]) + + 2-D array examples: + + >>> I = np.eye(2) + >>> I + array([[1., 0.], + [0., 1.]]) + + Accumulate along axis 0 (rows), down columns: + + >>> np.add.accumulate(I, 0) + array([[1., 0.], + [1., 1.]]) + >>> np.add.accumulate(I) # no axis specified = axis zero + array([[1., 0.], + [1., 1.]]) + + Accumulate along axis 1 (columns), through rows: + + >>> np.add.accumulate(I, 1) + array([[1., 1.], + [0., 1.]]) + + """)) + +add_newdoc('numpy._core', 'ufunc', ('reduceat', + """ + reduceat($self, array, /, indices, axis=0, dtype=None, out=None) + -- + + reduceat(array, indices, axis=0, dtype=None, out=None) + + Performs a (local) reduce with specified slices over a single axis. + + For i in ``range(len(indices))``, `reduceat` computes + ``ufunc.reduce(array[indices[i]:indices[i+1]])``, which becomes the i-th + generalized "row" parallel to `axis` in the final result (i.e., in a + 2-D array, for example, if `axis = 0`, it becomes the i-th row, but if + `axis = 1`, it becomes the i-th column). There are three exceptions to this: + + * when ``i = len(indices) - 1`` (so for the last index), + ``indices[i+1] = array.shape[axis]``. + * if ``indices[i] >= indices[i + 1]``, the i-th generalized "row" is + simply ``array[indices[i]]``. + * if ``indices[i] >= len(array)`` or ``indices[i] < 0``, an error is raised. + + The shape of the output depends on the size of `indices`, and may be + larger than `array` (this happens if ``len(indices) > array.shape[axis]``). + + Parameters + ---------- + array : array_like + The array to act on. + indices : array_like + Paired indices, comma separated (not colon), specifying slices to + reduce. + axis : int, optional + The axis along which to apply the reduceat. + dtype : data-type code, optional + The data type used to perform the operation. Defaults to that of + ``out`` if given, and the data type of ``array`` otherwise (though + upcast to conserve precision for some cases, such as + ``numpy.add.reduce`` for integer or boolean input). + out : ndarray, None, or tuple of ndarray and None, optional + Location into which the result is stored. + If not provided or None, a freshly-allocated array is returned. + For consistency with ``ufunc.__call__``, if passed as a keyword + argument, can be Ellipses (``out=...``, which has the same effect + as None as an array is always returned), or a 1-element tuple. + + Returns + ------- + r : ndarray + The reduced values. If `out` was supplied, `r` is a reference to + `out`. + + Notes + ----- + A descriptive example: + + If `array` is 1-D, the function `ufunc.accumulate(array)` is the same as + ``ufunc.reduceat(array, indices)[::2]`` where `indices` is + ``range(len(array) - 1)`` with a zero placed + in every other element: + ``indices = zeros(2 * len(array) - 1)``, + ``indices[1::2] = range(1, len(array))``. + + Don't be fooled by this attribute's name: `reduceat(array)` is not + necessarily smaller than `array`. + + Examples + -------- + To take the running sum of four successive values: + + >>> import numpy as np + >>> np.add.reduceat(np.arange(8),[0,4, 1,5, 2,6, 3,7])[::2] + array([ 6, 10, 14, 18]) + + A 2-D example: + + >>> x = np.linspace(0, 15, 16).reshape(4,4) + >>> x + array([[ 0., 1., 2., 3.], + [ 4., 5., 6., 7.], + [ 8., 9., 10., 11.], + [12., 13., 14., 15.]]) + + :: + + # reduce such that the result has the following five rows: + # [row1 + row2 + row3] + # [row4] + # [row2] + # [row3] + # [row1 + row2 + row3 + row4] + + >>> np.add.reduceat(x, [0, 3, 1, 2, 0]) + array([[12., 15., 18., 21.], + [12., 13., 14., 15.], + [ 4., 5., 6., 7.], + [ 8., 9., 10., 11.], + [24., 28., 32., 36.]]) + + :: + + # reduce such that result has the following two columns: + # [col1 * col2 * col3, col4] + + >>> np.multiply.reduceat(x, [0, 3], 1) + array([[ 0., 3.], + [ 120., 7.], + [ 720., 11.], + [2184., 15.]]) + + """)) + +add_newdoc('numpy._core', 'ufunc', ('outer', + r""" + outer($self, A, B, /, **kwargs) + -- + + outer(A, B, /, **kwargs) + + Apply the ufunc `op` to all pairs (a, b) with a in `A` and b in `B`. + + Let ``M = A.ndim``, ``N = B.ndim``. Then the result, `C`, of + ``op.outer(A, B)`` is an array of dimension M + N such that: + + .. math:: C[i_0, ..., i_{M-1}, j_0, ..., j_{N-1}] = + op(A[i_0, ..., i_{M-1}], B[j_0, ..., j_{N-1}]) + + For `A` and `B` one-dimensional, this is equivalent to:: + + r = empty(len(A),len(B)) + for i in range(len(A)): + for j in range(len(B)): + r[i,j] = op(A[i], B[j]) # op = ufunc in question + + Parameters + ---------- + A : array_like + First array + B : array_like + Second array + kwargs : any + Arguments to pass on to the ufunc. Typically `dtype` or `out`. + See `ufunc` for a comprehensive overview of all available arguments. + + Returns + ------- + r : ndarray + Output array + + See Also + -------- + numpy.outer : A less powerful version of ``np.multiply.outer`` + that `ravel`\ s all inputs to 1D. This exists + primarily for compatibility with old code. + + tensordot : ``np.tensordot(a, b, axes=((), ()))`` and + ``np.multiply.outer(a, b)`` behave same for all + dimensions of a and b. + + Examples + -------- + >>> np.multiply.outer([1, 2, 3], [4, 5, 6]) + array([[ 4, 5, 6], + [ 8, 10, 12], + [12, 15, 18]]) + + A multi-dimensional example: + + >>> A = np.array([[1, 2, 3], [4, 5, 6]]) + >>> A.shape + (2, 3) + >>> B = np.array([[1, 2, 3, 4]]) + >>> B.shape + (1, 4) + >>> C = np.multiply.outer(A, B) + >>> C.shape; C + (2, 3, 1, 4) + array([[[[ 1, 2, 3, 4]], + [[ 2, 4, 6, 8]], + [[ 3, 6, 9, 12]]], + [[[ 4, 8, 12, 16]], + [[ 5, 10, 15, 20]], + [[ 6, 12, 18, 24]]]]) + + """)) + +add_newdoc('numpy._core', 'ufunc', ('at', + """ + at($self, a, indices, b=None, /) + -- + + at(a, indices, b=None, /) + + Performs unbuffered in place operation on operand 'a' for elements + specified by 'indices'. For addition ufunc, this method is equivalent to + ``a[indices] += b``, except that results are accumulated for elements that + are indexed more than once. For example, ``a[[0,0]] += 1`` will only + increment the first element once because of buffering, whereas + ``add.at(a, [0,0], 1)`` will increment the first element twice. + + Parameters + ---------- + a : array_like + The array to perform in place operation on. + indices : array_like or tuple + Array like index object or slice object for indexing into first + operand. If first operand has multiple dimensions, indices can be a + tuple of array like index objects or slice objects. + b : array_like + Second operand for ufuncs requiring two operands. Operand must be + broadcastable over first operand after indexing or slicing. + + Examples + -------- + Set items 0 and 1 to their negative values: + + >>> import numpy as np + >>> a = np.array([1, 2, 3, 4]) + >>> np.negative.at(a, [0, 1]) + >>> a + array([-1, -2, 3, 4]) + + Increment items 0 and 1, and increment item 2 twice: + + >>> a = np.array([1, 2, 3, 4]) + >>> np.add.at(a, [0, 1, 2, 2], 1) + >>> a + array([2, 3, 5, 4]) + + Add items 0 and 1 in first array to second array, + and store results in first array: + + >>> a = np.array([1, 2, 3, 4]) + >>> b = np.array([1, 2]) + >>> np.add.at(a, [0, 1], b) + >>> a + array([2, 4, 3, 4]) + + """)) + +add_newdoc('numpy._core', 'ufunc', ('resolve_dtypes', + """ + resolve_dtypes($self, dtypes, *, signature=None, casting=None, reduction=False) + -- + + resolve_dtypes(dtypes, *, signature=None, casting=None, reduction=False) + + Find the dtypes NumPy will use for the operation. Both input and + output dtypes are returned and may differ from those provided. + + .. note:: + + This function always applies NEP 50 rules since it is not provided + any actual values. The Python types ``int``, ``float``, and + ``complex`` thus behave weak and should be passed for "untyped" + Python input. + + Parameters + ---------- + dtypes : tuple of dtypes, None, or literal int, float, complex + The input dtypes for each operand. Output operands can be + None, indicating that the dtype must be found. + signature : tuple of DTypes or None, optional + If given, enforces exact DType (classes) of the specific operand. + The ufunc ``dtype`` argument is equivalent to passing a tuple with + only output dtypes set. + casting : {'no', 'equiv', 'safe', 'same_kind', 'unsafe'}, optional + The casting mode when casting is necessary. This is identical to + the ufunc call casting modes. + reduction : boolean + If given, the resolution assumes a reduce operation is happening + which slightly changes the promotion and type resolution rules. + `dtypes` is usually something like ``(None, np.dtype("i2"), None)`` + for reductions (first input is also the output). + + .. note:: + + The default casting mode is "same_kind", however, as of + NumPy 1.24, NumPy uses "unsafe" for reductions. + + Returns + ------- + dtypes : tuple of dtypes + The dtypes which NumPy would use for the calculation. Note that + dtypes may not match the passed in ones (casting is necessary). + + + Examples + -------- + This API requires passing dtypes, define them for convenience: + + >>> import numpy as np + >>> int32 = np.dtype("int32") + >>> float32 = np.dtype("float32") + + The typical ufunc call does not pass an output dtype. `numpy.add` has two + inputs and one output, so leave the output as ``None`` (not provided): + + >>> np.add.resolve_dtypes((int32, float32, None)) + (dtype('float64'), dtype('float64'), dtype('float64')) + + The loop found uses "float64" for all operands (including the output), the + first input would be cast. + + ``resolve_dtypes`` supports "weak" handling for Python scalars by passing + ``int``, ``float``, or ``complex``: + + >>> np.add.resolve_dtypes((float32, float, None)) + (dtype('float32'), dtype('float32'), dtype('float32')) + + Where the Python ``float`` behaves similar to a Python value ``0.0`` + in a ufunc call. (See :ref:`NEP 50 ` for details.) + + """)) + +add_newdoc('numpy._core', 'ufunc', ('_resolve_dtypes_and_context', + """ + _resolve_dtypes_and_context($self, dtypes, *, signature=None, casting=None, reduction=False) + -- + + _resolve_dtypes_and_context(dtypes, *, signature=None, casting=None, reduction=False) + + See `numpy.ufunc.resolve_dtypes` for parameter information. This + function is considered *unstable*. You may use it, but the returned + information is NumPy version specific and expected to change. + Large API/ABI changes are not expected, but a new NumPy version is + expected to require updating code using this functionality. + + This function is designed to be used in conjunction with + `numpy.ufunc._get_strided_loop`. The calls are split to mirror the C API + and allow future improvements. + + Returns + ------- + dtypes : tuple of dtypes + call_info : + PyCapsule with all necessary information to get access to low level + C calls. See `numpy.ufunc._get_strided_loop` for more information. + + """)) + +add_newdoc('numpy._core', 'ufunc', ('_get_strided_loop', + """ + _get_strided_loop($self, call_info, /, *, fixed_strides=None) + -- + + _get_strided_loop(call_info, /, *, fixed_strides=None) + + This function fills in the ``call_info`` capsule to include all + information necessary to call the low-level strided loop from NumPy. + + See notes for more information. + + Parameters + ---------- + call_info : PyCapsule + The PyCapsule returned by `numpy.ufunc._resolve_dtypes_and_context`. + fixed_strides : tuple of int or None, optional + A tuple with fixed byte strides of all input arrays. NumPy may use + this information to find specialized loops, so any call must follow + the given stride. Use ``None`` to indicate that the stride is not + known (or not fixed) for all calls. + + Notes + ----- + Together with `numpy.ufunc._resolve_dtypes_and_context` this function + gives low-level access to the NumPy ufunc loops. + The first function does general preparation and returns the required + information. It returns this as a C capsule with the version specific + name ``numpy_1.24_ufunc_call_info``. + The NumPy 1.24 ufunc call info capsule has the following layout:: + + typedef struct { + PyArrayMethod_StridedLoop *strided_loop; + PyArrayMethod_Context *context; + NpyAuxData *auxdata; + + /* Flag information (expected to change) */ + npy_bool requires_pyapi; /* GIL is required by loop */ + + /* Loop doesn't set FPE flags; if not set check FPE flags */ + npy_bool no_floatingpoint_errors; + } ufunc_call_info; + + Note that the first call only fills in the ``context``. The call to + ``_get_strided_loop`` fills in all other data. The main thing to note is + that the new-style loops return 0 on success, -1 on failure. They are + passed context as new first input and ``auxdata`` as (replaced) last. + + Only the ``strided_loop``signature is considered guaranteed stable + for NumPy bug-fix releases. All other API is tied to the experimental + API versioning. + + The reason for the split call is that cast information is required to + decide what the fixed-strides will be. + + NumPy ties the lifetime of the ``auxdata`` information to the capsule. + + """)) + + +############################################################################## +# +# Documentation for dtype attributes and methods +# +############################################################################## + +############################################################################## +# +# dtype object +# +############################################################################## + +add_newdoc('numpy._core.multiarray', 'dtype', + """ + dtype(dtype, align=False, copy=False, **kwargs) + -- + + dtype(dtype, align=False, copy=False, [metadata]) + + Create a data type object. + + A numpy array is homogeneous, and contains elements described by a + dtype object. A dtype object can be constructed from different + combinations of fundamental numeric types. + + Parameters + ---------- + dtype + Object to be converted to a data type object. + align : bool, optional + Add padding to the fields to match what a C compiler would output + for a similar C-struct. Can be ``True`` only if `obj` is a dictionary + or a comma-separated string. If a struct dtype is being created, + this also sets a sticky alignment flag ``isalignedstruct``. + copy : bool, optional + Make a new copy of the data-type object. If ``False``, the result + may just be a reference to a built-in data-type object. + metadata : dict, optional + An optional dictionary with dtype metadata. + + See also + -------- + result_type + + Examples + -------- + Using array-scalar type: + + >>> import numpy as np + >>> np.dtype(np.int16) + dtype('int16') + + Structured type, one field name 'f1', containing int16: + + >>> np.dtype([('f1', np.int16)]) + dtype([('f1', '>> np.dtype([('f1', [('f1', np.int16)])]) + dtype([('f1', [('f1', '>> np.dtype([('f1', np.uint64), ('f2', np.int32)]) + dtype([('f1', '>> np.dtype([('a','f8'),('b','S10')]) + dtype([('a', '>> np.dtype("i4, (2,3)f8") + dtype([('f0', '>> np.dtype([('hello',(np.int64,3)),('world',np.void,10)]) + dtype([('hello', '>> np.dtype((np.int16, {'x':(np.int8,0), 'y':(np.int8,1)})) + dtype((numpy.int16, [('x', 'i1'), ('y', 'i1')])) + + Using dictionaries. Two fields named 'gender' and 'age': + + >>> np.dtype({'names':['gender','age'], 'formats':['S1',np.uint8]}) + dtype([('gender', 'S1'), ('age', 'u1')]) + + Offsets in bytes, here 0 and 25: + + >>> np.dtype({'surname':('S25',0),'age':(np.uint8,25)}) + dtype([('surname', 'S25'), ('age', 'u1')]) + + """) + +############################################################################## +# +# dtype attributes +# +############################################################################## + +add_newdoc('numpy._core.multiarray', 'dtype', ('alignment', + """ + The required alignment (bytes) of this data-type according to the compiler. + + More information is available in the C-API section of the manual. + + Examples + -------- + + >>> import numpy as np + >>> x = np.dtype('i4') + >>> x.alignment + 4 + + >>> x = np.dtype(float) + >>> x.alignment + 8 + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('byteorder', + """ + A character indicating the byte-order of this data-type object. + + One of: + + === ============== + '=' native + '<' little-endian + '>' big-endian + '|' not applicable + === ============== + + All built-in data-type objects have byteorder either '=' or '|'. + + Examples + -------- + + >>> import numpy as np + >>> dt = np.dtype('i2') + >>> dt.byteorder + '=' + >>> # endian is not relevant for 8 bit numbers + >>> np.dtype('i1').byteorder + '|' + >>> # or ASCII strings + >>> np.dtype('S2').byteorder + '|' + >>> # Even if specific code is given, and it is native + >>> # '=' is the byteorder + >>> import sys + >>> sys_is_le = sys.byteorder == 'little' + >>> native_code = '<' if sys_is_le else '>' + >>> swapped_code = '>' if sys_is_le else '<' + >>> dt = np.dtype(native_code + 'i2') + >>> dt.byteorder + '=' + >>> # Swapped code shows up as itself + >>> dt = np.dtype(swapped_code + 'i2') + >>> dt.byteorder == swapped_code + True + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('char', + """A unique character code for each of the 21 different built-in types. + + Examples + -------- + + >>> import numpy as np + >>> x = np.dtype(float) + >>> x.char + 'd' + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('descr', + """ + `__array_interface__` description of the data-type. + + The format is that required by the 'descr' key in the + `__array_interface__` attribute. + + Warning: This attribute exists specifically for `__array_interface__`, + and passing it directly to `numpy.dtype` will not accurately reconstruct + some dtypes (e.g., scalar and subarray dtypes). + + Examples + -------- + + >>> import numpy as np + >>> x = np.dtype(float) + >>> x.descr + [('', '>> dt = np.dtype([('name', np.str_, 16), ('grades', np.float64, (2,))]) + >>> dt.descr + [('name', '>> import numpy as np + >>> dt = np.dtype([('name', np.str_, 16), ('grades', np.float64, (2,))]) + >>> print(dt.fields) + {'name': (dtype('>> import numpy as np + >>> x = np.dtype([('a', np.int32, 8), ('b', np.float64, 6)]) + >>> x.flags + 16 + >>> np._core.multiarray.NEEDS_PYAPI + 16 + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('hasobject', + """ + Boolean indicating whether this dtype contains any reference-counted + objects in any fields or sub-dtypes. + + Recall that what is actually in the ndarray memory representing + the Python object is the memory address of that object (a pointer). + Special handling may be required, and this attribute is useful for + distinguishing data types that may contain arbitrary Python objects + and data-types that won't. + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('isbuiltin', + """ + Integer indicating how this dtype relates to the built-in dtypes. + + Read-only. + + = ======================================================================== + 0 if this is a structured array type, with fields + 1 if this is a dtype compiled into numpy (such as ints, floats etc) + 2 if the dtype is for a user-defined numpy type + A user-defined type uses the numpy C-API machinery to extend + numpy to handle a new array type. See + :ref:`user.user-defined-data-types` in the NumPy manual. + = ======================================================================== + + Examples + -------- + + >>> import numpy as np + >>> dt = np.dtype('i2') + >>> dt.isbuiltin + 1 + >>> dt = np.dtype('f8') + >>> dt.isbuiltin + 1 + >>> dt = np.dtype([('field1', 'f8')]) + >>> dt.isbuiltin + 0 + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('isnative', + """ + Boolean indicating whether the byte order of this dtype is native + to the platform. + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('isalignedstruct', + """ + Boolean indicating whether the dtype is a struct which maintains + field alignment. This flag is sticky, so when combining multiple + structs together, it is preserved and produces new dtypes which + are also aligned. + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('itemsize', + """ + The element size of this data-type object. + + For 18 of the 21 types this number is fixed by the data-type. + For the flexible data-types, this number can be anything. + + Examples + -------- + + >>> import numpy as np + >>> arr = np.array([[1, 2], [3, 4]]) + >>> arr.dtype + dtype('int64') + >>> arr.itemsize + 8 + + >>> dt = np.dtype([('name', np.str_, 16), ('grades', np.float64, (2,))]) + >>> dt.itemsize + 80 + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('kind', + """ + A character code (one of 'biufcmMOSTUV') identifying the general kind of data. + + = ====================== + b boolean + i signed integer + u unsigned integer + f floating-point + c complex floating-point + m timedelta + M datetime + O object + S (byte-)string + T string (StringDType) + U Unicode + V void + = ====================== + + Examples + -------- + + >>> import numpy as np + >>> dt = np.dtype('i4') + >>> dt.kind + 'i' + >>> dt = np.dtype('f8') + >>> dt.kind + 'f' + >>> dt = np.dtype([('field1', 'f8')]) + >>> dt.kind + 'V' + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('metadata', + """ + Either ``None`` or a readonly dictionary of metadata (mappingproxy). + + The metadata field can be set using any dictionary at data-type + creation. NumPy currently has no uniform approach to propagating + metadata; although some array operations preserve it, there is no + guarantee that others will. + + .. warning:: + + Although used in certain projects, this feature was long undocumented + and is not well supported. Some aspects of metadata propagation + are expected to change in the future. + + Examples + -------- + + >>> import numpy as np + >>> dt = np.dtype(float, metadata={"key": "value"}) + >>> dt.metadata["key"] + 'value' + >>> arr = np.array([1, 2, 3], dtype=dt) + >>> arr.dtype.metadata + mappingproxy({'key': 'value'}) + + Adding arrays with identical datatypes currently preserves the metadata: + + >>> (arr + arr).dtype.metadata + mappingproxy({'key': 'value'}) + + If the arrays have different dtype metadata, the first one wins: + + >>> dt2 = np.dtype(float, metadata={"key2": "value2"}) + >>> arr2 = np.array([3, 2, 1], dtype=dt2) + >>> print((arr + arr2).dtype.metadata) + {'key': 'value'} + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('name', + """ + A bit-width name for this data-type. + + Un-sized flexible data-type objects do not have this attribute. + + Examples + -------- + + >>> import numpy as np + >>> x = np.dtype(float) + >>> x.name + 'float64' + >>> x = np.dtype([('a', np.int32, 8), ('b', np.float64, 6)]) + >>> x.name + 'void640' + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('names', + """ + Ordered list of field names, or ``None`` if there are no fields. + + The names are ordered according to increasing byte offset. This can be + used, for example, to walk through all of the named fields in offset order. + + Examples + -------- + >>> dt = np.dtype([('name', np.str_, 16), ('grades', np.float64, (2,))]) + >>> dt.names + ('name', 'grades') + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('num', + """ + A unique number for each of the 21 different built-in types. + + These are roughly ordered from least-to-most precision. + + Examples + -------- + + >>> import numpy as np + >>> dt = np.dtype(str) + >>> dt.num + 19 + + >>> dt = np.dtype(float) + >>> dt.num + 12 + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('shape', + """ + Shape tuple of the sub-array if this data type describes a sub-array, + and ``()`` otherwise. + + Examples + -------- + + >>> import numpy as np + >>> dt = np.dtype(('i4', 4)) + >>> dt.shape + (4,) + + >>> dt = np.dtype(('i4', (2, 3))) + >>> dt.shape + (2, 3) + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('ndim', + """ + Number of dimensions of the sub-array if this data type describes a + sub-array, and ``0`` otherwise. + + Examples + -------- + >>> import numpy as np + >>> x = np.dtype(float) + >>> x.ndim + 0 + + >>> x = np.dtype((float, 8)) + >>> x.ndim + 1 + + >>> x = np.dtype(('i4', (3, 4))) + >>> x.ndim + 2 + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('str', + """The array-protocol typestring of this data-type object.""")) + +add_newdoc('numpy._core.multiarray', 'dtype', ('subdtype', + """ + Tuple ``(item_dtype, shape)`` if this `dtype` describes a sub-array, and + None otherwise. + + The *shape* is the fixed shape of the sub-array described by this + data type, and *item_dtype* the data type of the array. + + If a field whose dtype object has this attribute is retrieved, + then the extra dimensions implied by *shape* are tacked on to + the end of the retrieved array. + + See Also + -------- + dtype.base + + Examples + -------- + >>> import numpy as np + >>> x = np.dtype('8f') + >>> x.subdtype + (dtype('float32'), (8,)) + + >>> x = np.dtype('i2') + >>> x.subdtype + >>> + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('base', + """ + Returns dtype for the base element of the subarrays, + regardless of their dimension or shape. + + See Also + -------- + dtype.subdtype + + Examples + -------- + >>> import numpy as np + >>> x = np.dtype('8f') + >>> x.base + dtype('float32') + + >>> x = np.dtype('i2') + >>> x.base + dtype('int16') + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('type', + """The type object used to instantiate a scalar of this data-type.""")) + +############################################################################## +# +# dtype methods +# +############################################################################## + +add_newdoc('numpy._core.multiarray', 'dtype', ('newbyteorder', + """ + newbyteorder($self, new_order='S', /) + -- + + newbyteorder(new_order='S', /) + + Return a new dtype with a different byte order. + + Changes are also made in all fields and sub-arrays of the data type. + + Parameters + ---------- + new_order : string, optional + Byte order to force; a value from the byte order specifications + below. The default value ('S') results in swapping the current + byte order. `new_order` codes can be any of: + + * 'S' - swap dtype from current to opposite endian + * {'<', 'little'} - little endian + * {'>', 'big'} - big endian + * {'=', 'native'} - native order + * {'|', 'I'} - ignore (no change to byte order) + + Returns + ------- + new_dtype : dtype + New dtype object with the given change to the byte order. + + Notes + ----- + Changes are also made in all fields and sub-arrays of the data type. + + Examples + -------- + >>> import sys + >>> sys_is_le = sys.byteorder == 'little' + >>> native_code = '<' if sys_is_le else '>' + >>> swapped_code = '>' if sys_is_le else '<' + >>> import numpy as np + >>> native_dt = np.dtype(native_code+'i2') + >>> swapped_dt = np.dtype(swapped_code+'i2') + >>> native_dt.newbyteorder('S') == swapped_dt + True + >>> native_dt.newbyteorder() == swapped_dt + True + >>> native_dt == swapped_dt.newbyteorder('S') + True + >>> native_dt == swapped_dt.newbyteorder('=') + True + >>> native_dt == swapped_dt.newbyteorder('N') + True + >>> native_dt == native_dt.newbyteorder('|') + True + >>> np.dtype('>> np.dtype('>> np.dtype('>i2') == native_dt.newbyteorder('>') + True + >>> np.dtype('>i2') == native_dt.newbyteorder('B') + True + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('__class_getitem__', + """ + __class_getitem__(item, /) + + Return a parametrized wrapper around the `~numpy.dtype` type. + + .. versionadded:: 1.22 + + Returns + ------- + alias : types.GenericAlias + A parametrized `~numpy.dtype` type. + + Examples + -------- + >>> import numpy as np + + >>> np.dtype[np.int64] + numpy.dtype[numpy.int64] + + See Also + -------- + :pep:`585` : Type hinting generics in standard collections. + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('__ge__', + """ + __ge__(value, /) + + Return ``self >= value``. + + Equivalent to ``np.can_cast(value, self, casting="safe")``. + + See Also + -------- + can_cast : Returns True if cast between data types can occur according to + the casting rule. + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('__le__', + """ + __le__(value, /) + + Return ``self <= value``. + + Equivalent to ``np.can_cast(self, value, casting="safe")``. + + See Also + -------- + can_cast : Returns True if cast between data types can occur according to + the casting rule. + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('__gt__', + """ + __gt__(value, /) + + Return ``self > value``. + + Equivalent to + ``self != value and np.can_cast(value, self, casting="safe")``. + + See Also + -------- + can_cast : Returns True if cast between data types can occur according to + the casting rule. + + """)) + +add_newdoc('numpy._core.multiarray', 'dtype', ('__lt__', + """ + __lt__(value, /) + + Return ``self < value``. + + Equivalent to + ``self != value and np.can_cast(self, value, casting="safe")``. + + See Also + -------- + can_cast : Returns True if cast between data types can occur according to + the casting rule. + + """)) + +############################################################################## +# +# Datetime-related Methods +# +############################################################################## + +add_newdoc('numpy._core.multiarray', 'busdaycalendar', + """ + busdaycalendar(weekmask='1111100', holidays=None) + -- + + busdaycalendar(weekmask='1111100', holidays=None) + + A business day calendar object that efficiently stores information + defining valid days for the busday family of functions. + + The default valid days are Monday through Friday ("business days"). + A busdaycalendar object can be specified with any set of weekly + valid days, plus an optional "holiday" dates that always will be invalid. + + Once a busdaycalendar object is created, the weekmask and holidays + cannot be modified. + + Parameters + ---------- + weekmask : str or array_like of bool, optional + A seven-element array indicating which of Monday through Sunday are + valid days. May be specified as a length-seven list or array, like + [1,1,1,1,1,0,0]; a length-seven string, like '1111100'; or a string + like "Mon Tue Wed Thu Fri", made up of 3-character abbreviations for + weekdays, optionally separated by white space. Valid abbreviations + are: Mon Tue Wed Thu Fri Sat Sun + holidays : array_like of datetime64[D], optional + An array of dates to consider as invalid dates, no matter which + weekday they fall upon. Holiday dates may be specified in any + order, and NaT (not-a-time) dates are ignored. This list is + saved in a normalized form that is suited for fast calculations + of valid days. + + Returns + ------- + out : busdaycalendar + A business day calendar object containing the specified + weekmask and holidays values. + + See Also + -------- + is_busday : Returns a boolean array indicating valid days. + busday_offset : Applies an offset counted in valid days. + busday_count : Counts how many valid days are in a half-open date range. + + Attributes + ---------- + weekmask : (copy) seven-element array of bool + holidays : (copy) sorted array of datetime64[D] + + Notes + ----- + Once a busdaycalendar object is created, you cannot modify the + weekmask or holidays. The attributes return copies of internal data. + + Examples + -------- + >>> import numpy as np + >>> # Some important days in July + ... bdd = np.busdaycalendar( + ... holidays=['2011-07-01', '2011-07-04', '2011-07-17']) + >>> # Default is Monday to Friday weekdays + ... bdd.weekmask + array([ True, True, True, True, True, False, False]) + >>> # Any holidays already on the weekend are removed + ... bdd.holidays + array(['2011-07-01', '2011-07-04'], dtype='datetime64[D]') + """) + +add_newdoc('numpy._core.multiarray', 'busdaycalendar', ('weekmask', + """A copy of the seven-element boolean mask indicating valid days.""")) + +add_newdoc('numpy._core.multiarray', 'busdaycalendar', ('holidays', + """A copy of the holiday array indicating additional invalid days.""")) + +add_newdoc('numpy._core.multiarray', 'normalize_axis_index', + """ + normalize_axis_index(axis, ndim, msg_prefix=None) + + Normalizes an axis index, `axis`, such that is a valid positive index into + the shape of array with `ndim` dimensions. Raises an AxisError with an + appropriate message if this is not possible. + + Used internally by all axis-checking logic. + + Parameters + ---------- + axis : int + The un-normalized index of the axis. Can be negative + ndim : int + The number of dimensions of the array that `axis` should be normalized + against + msg_prefix : str + A prefix to put before the message, typically the name of the argument + + Returns + ------- + normalized_axis : int + The normalized axis index, such that `0 <= normalized_axis < ndim` + + Raises + ------ + AxisError + If the axis index is invalid, when `-ndim <= axis < ndim` is false. + + Examples + -------- + >>> import numpy as np + >>> from numpy.lib.array_utils import normalize_axis_index + >>> normalize_axis_index(0, ndim=3) + 0 + >>> normalize_axis_index(1, ndim=3) + 1 + >>> normalize_axis_index(-1, ndim=3) + 2 + + >>> normalize_axis_index(3, ndim=3) + Traceback (most recent call last): + ... + numpy.exceptions.AxisError: axis 3 is out of bounds for array ... + >>> normalize_axis_index(-4, ndim=3, msg_prefix='axes_arg') + Traceback (most recent call last): + ... + numpy.exceptions.AxisError: axes_arg: axis -4 is out of bounds ... + """) + +add_newdoc('numpy._core.multiarray', 'datetime_data', + """ + datetime_data(dtype, /) + -- + + datetime_data(dtype, /) + + Get information about the step size of a date or time type. + + The returned tuple can be passed as the second argument of `numpy.datetime64` and + `numpy.timedelta64`. + + Parameters + ---------- + dtype : dtype + The dtype object, which must be a `datetime64` or `timedelta64` type. + + Returns + ------- + unit : str + The :ref:`datetime unit ` on which this dtype + is based. + count : int + The number of base units in a step. + + Examples + -------- + >>> import numpy as np + >>> dt_25s = np.dtype('timedelta64[25s]') + >>> np.datetime_data(dt_25s) + ('s', 25) + >>> np.array(10, dt_25s).astype('timedelta64[s]') + array(250, dtype='timedelta64[s]') + + The result can be used to construct a datetime that uses the same units + as a timedelta + + >>> np.datetime64('2010', np.datetime_data(dt_25s)) + np.datetime64('2010-01-01T00:00:00','25s') + """) + + +############################################################################## +# +# Documentation for `generic` attributes and methods +# +############################################################################## + +add_newdoc('numpy._core.numerictypes', 'generic', + """ + Base class for numpy scalar types. + + Class from which most (all?) numpy scalar types are derived. For + consistency, exposes the same API as `ndarray`, despite many + consequent attributes being either "get-only," or completely irrelevant. + This is the class from which it is strongly suggested users should derive + custom scalar types. + + """) + +# Attributes + +add_newdoc('numpy._core.numerictypes', 'generic', ('T', + """Scalar attribute identical to `ndarray.T`.""")) + +add_newdoc('numpy._core.numerictypes', 'generic', ('base', + """Scalar attribute identical to `ndarray.base`.""")) + +add_newdoc('numpy._core.numerictypes', 'generic', ('data', + """Pointer to start of data.""")) + +add_newdoc('numpy._core.numerictypes', 'generic', ('dtype', + """Get array data-descriptor.""")) + +add_newdoc('numpy._core.numerictypes', 'generic', ('flags', + """The integer value of flags.""")) + +add_newdoc('numpy._core.numerictypes', 'generic', ('flat', + """A 1-D view of the scalar.""")) + +add_newdoc('numpy._core.numerictypes', 'generic', ('imag', + """The imaginary part of the scalar.""")) + +add_newdoc('numpy._core.numerictypes', 'generic', ('itemsize', + """The length of one element in bytes.""")) + +add_newdoc('numpy._core.numerictypes', 'generic', ('ndim', + """The number of array dimensions.""")) + +add_newdoc('numpy._core.numerictypes', 'generic', ('real', + """The real part of the scalar.""")) + +add_newdoc('numpy._core.numerictypes', 'generic', ('shape', + """Tuple of array dimensions.""")) + +add_newdoc('numpy._core.numerictypes', 'generic', ('size', + """The number of elements in the gentype.""")) + +add_newdoc('numpy._core.numerictypes', 'generic', ('strides', + """Tuple of bytes steps in each dimension.""")) + +# Methods + +add_newdoc('numpy._core.numerictypes', 'number', ('__class_getitem__', + """ + __class_getitem__($cls, item, /) + -- + + number.__class_getitem__(item, /) + + Return a parametrized wrapper around the `~numpy.number` type. + + .. versionadded:: 1.22 + + Returns + ------- + alias : types.GenericAlias + A parametrized `~numpy.number` type. + + Examples + -------- + >>> from typing import Any + >>> import numpy as np + + >>> np.signedinteger[Any] + numpy.signedinteger[typing.Any] + + See Also + -------- + :pep:`585` : Type hinting generics in standard collections. + + """)) + +############################################################################## +# +# Documentation for scalar type abstract base classes in type hierarchy +# +############################################################################## + + +add_newdoc('numpy._core.numerictypes', 'number', + """ + Abstract base class of all numeric scalar types. + + """) + +add_newdoc('numpy._core.numerictypes', 'integer', + """ + Abstract base class of all integer scalar types. + + """) + +add_newdoc('numpy._core.numerictypes', 'signedinteger', + """ + Abstract base class of all signed integer scalar types. + + """) + +add_newdoc('numpy._core.numerictypes', 'unsignedinteger', + """ + Abstract base class of all unsigned integer scalar types. + + """) + +add_newdoc('numpy._core.numerictypes', 'inexact', + """ + Abstract base class of all numeric scalar types with a (potentially) + inexact representation of the values in its range, such as + floating-point numbers. + + """) + +add_newdoc('numpy._core.numerictypes', 'floating', + """ + Abstract base class of all floating-point scalar types. + + """) + +add_newdoc('numpy._core.numerictypes', 'complexfloating', + """ + Abstract base class of all complex number scalar types that are made up of + floating-point numbers. + + """) + +add_newdoc('numpy._core.numerictypes', 'flexible', + """ + Abstract base class of all scalar types without predefined length. + The actual size of these types depends on the specific `numpy.dtype` + instantiation. + + """) + +add_newdoc('numpy._core.numerictypes', 'character', + """ + Abstract base class of all character string scalar types. + + """) + +############################################################################## +# +# Documentation for `dtypes.*` classes +# +############################################################################## + +for _dtype_name, _signature, _sctype_name in ( + ("BoolDType", "()", "bool"), + ("Int8DType", "()", "int8"), + ("UInt8DType", "()", "uint8"), + ("Int16DType", "()", "int16"), + ("UInt16DType", "()", "uint16"), + ("Int32DType", "()", "int32"), + ("IntDType", "()", "intc"), + ("UInt32DType", "()", "uint32"), + ("UIntDType", "()", "uintc"), + ("Int64DType", "()", "int64"), + ("UInt64DType", "()", "uint64"), + ("LongLongDType", "()", "longlong"), + ("ULongLongDType", "()", "ulonglong"), + ("Float16DType", "()", "float16"), + ("Float32DType", "()", "float32"), + ("Float64DType", "()", "float64"), + ("LongDoubleDType", "()", "longdouble"), + ("Complex64DType", "()", "complex64"), + ("Complex128DType", "()", "complex128"), + ("CLongDoubleDType", "()", "clongdouble"), + ("ObjectDType", "()", "object"), + ("BytesDType", "(size, /)", "bytes_"), + ("StrDType", "(size, /)", "str_"), + ("VoidDType", "(length, /)", "void"), + ("DateTime64DType", "(unit, /)", "datetime64"), + ("TimeDelta64DType", "(unit, /)", "timedelta64"), +): + _extra_docs = "" + if _dtype_name in {"VoidDType", "DateTime64DType", "TimeDelta64DType"}: + _extra_docs = f""" + .. warning:: + ``np.dtypes.{_dtype_name}`` cannot be instantiated directly. + Use ``np.dtype("{_sctype_name}[{{unit}}]")`` instead. + """ + + add_newdoc('numpy.dtypes', _dtype_name, + f""" + {_dtype_name}{_signature} + -- + + DType class corresponding to the `numpy.{_sctype_name}` scalar type. + {_extra_docs} + See `numpy.dtype` for the typical way to create dtype instances + and :ref:`arrays.dtypes` for additional information. + """) + + del _dtype_name, _signature, _sctype_name, _extra_docs # avoid namespace pollution + + +add_newdoc('numpy._core.multiarray', 'StringDType', + """ + StringDType(*, coerce=True, **kwargs) + -- + + StringDType(*, na_object=np._NoValue, coerce=True) + + Create a StringDType instance. + + StringDType can be used to store UTF-8 encoded variable-width strings in + a NumPy array. + + Parameters + ---------- + na_object : object, optional + Object used to represent missing data. If unset, the array will not + use a missing data sentinel. + coerce : bool, optional + Whether or not items in an array-like passed to an array creation + function that are neither a str or str subtype should be coerced to + str. Defaults to True. If set to False, creating a StringDType + array from an array-like containing entries that are not already + strings will raise an error. + + Examples + -------- + + >>> import numpy as np + + >>> from numpy.dtypes import StringDType + >>> np.array(["hello", "world"], dtype=StringDType()) + array(["hello", "world"], dtype=StringDType()) + + >>> arr = np.array(["hello", None, "world"], + ... dtype=StringDType(na_object=None)) + >>> arr + array(["hello", None, "world"], dtype=StringDType(na_object=None)) + >>> arr[1] is None + True + + >>> arr = np.array(["hello", np.nan, "world"], + ... dtype=StringDType(na_object=np.nan)) + >>> np.isnan(arr) + array([False, True, False]) + + >>> np.array([1.2, object(), "hello world"], + ... dtype=StringDType(coerce=False)) + Traceback (most recent call last): + ... + ValueError: StringDType only allows string data when string coercion is disabled. + + >>> np.array(["hello", "world"], dtype=StringDType(coerce=True)) + array(["hello", "world"], dtype=StringDType(coerce=True)) + """) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_add_newdocs.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_add_newdocs.pyi new file mode 100644 index 0000000000000000000000000000000000000000..2d004814fdcf9a9c31bbea794d715a9b330ca161 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_add_newdocs.pyi @@ -0,0 +1,2 @@ +from .function_base import add_newdoc as add_newdoc +from .overrides import get_array_function_like_doc as get_array_function_like_doc diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_add_newdocs_scalars.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_add_newdocs_scalars.py new file mode 100644 index 0000000000000000000000000000000000000000..3f9eca5e47f375e55a66e3c547b5a811de5eb22f --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_add_newdocs_scalars.py @@ -0,0 +1,381 @@ +""" +This file is separate from ``_add_newdocs.py`` so that it can be mocked out by +our sphinx ``conf.py`` during doc builds, where we want to avoid showing +platform-dependent information. +""" +import os +import sys + +from numpy._core import dtype, numerictypes as _numerictypes +from numpy._core.function_base import add_newdoc + +############################################################################## +# +# Documentation for concrete scalar classes +# +############################################################################## + +def numeric_type_aliases(aliases): + def type_aliases_gen(): + for alias, doc in aliases: + try: + alias_type = getattr(_numerictypes, alias) + except AttributeError: + # The set of aliases that actually exist varies between platforms + pass + else: + yield (alias_type, alias, doc) + return list(type_aliases_gen()) + + +possible_aliases = numeric_type_aliases([ + ('int8', '8-bit signed integer (``-128`` to ``127``)'), + ('int16', '16-bit signed integer (``-32_768`` to ``32_767``)'), + ('int32', '32-bit signed integer (``-2_147_483_648`` to ``2_147_483_647``)'), + ('int64', '64-bit signed integer (``-9_223_372_036_854_775_808`` to ``9_223_372_036_854_775_807``)'), + ('intp', 'Signed integer large enough to fit pointer, compatible with C ``intptr_t``'), + ('uint8', '8-bit unsigned integer (``0`` to ``255``)'), + ('uint16', '16-bit unsigned integer (``0`` to ``65_535``)'), + ('uint32', '32-bit unsigned integer (``0`` to ``4_294_967_295``)'), + ('uint64', '64-bit unsigned integer (``0`` to ``18_446_744_073_709_551_615``)'), + ('uintp', 'Unsigned integer large enough to fit pointer, compatible with C ``uintptr_t``'), + ('float16', '16-bit-precision floating-point number type: sign bit, 5 bits exponent, 10 bits mantissa'), + ('float32', '32-bit-precision floating-point number type: sign bit, 8 bits exponent, 23 bits mantissa'), + ('float64', '64-bit precision floating-point number type: sign bit, 11 bits exponent, 52 bits mantissa'), + ('float96', '96-bit extended-precision floating-point number type'), + ('float128', '128-bit extended-precision floating-point number type'), + ('complex64', 'Complex number type composed of 2 32-bit-precision floating-point numbers'), + ('complex128', 'Complex number type composed of 2 64-bit-precision floating-point numbers'), + ('complex192', 'Complex number type composed of 2 96-bit extended-precision floating-point numbers'), + ('complex256', 'Complex number type composed of 2 128-bit extended-precision floating-point numbers'), +]) + + +def _get_platform_and_machine(): + try: + system, _, _, _, machine = os.uname() + except AttributeError: + system = sys.platform + if system == 'win32': + machine = os.environ.get('PROCESSOR_ARCHITEW6432', '') \ + or os.environ.get('PROCESSOR_ARCHITECTURE', '') + else: + machine = 'unknown' + return system, machine + + +_system, _machine = _get_platform_and_machine() +_doc_alias_string = f":Alias on this platform ({_system} {_machine}):" + +# docstring prefix that cpython uses to populate `__text_signature__` +_ARGUMENT_CLINIC_TEMPLATE = """{name}{signature} +-- + +{docstring}""" + +def add_newdoc_for_scalar_type(name: str, text_signature: str, doc: str) -> None: + # note: `:field: value` is rST syntax which renders as field lists. + cls = getattr(_numerictypes, name) + module = cls.__module__ + + lines_extra = [ + "", # blank line after main doc + f":Character code: ``{dtype(cls).char!r}``", + ] + + if name != cls.__name__: + lines_extra.append(f":Canonical name: `{module}.{name}`") + + lines_extra.extend( + f"{_doc_alias_string} `{module}.{alias}`: {doc}." + for alias_type, alias, doc in possible_aliases + if alias_type is cls + ) + + docstring = _ARGUMENT_CLINIC_TEMPLATE.format( + name=cls.__name__, # must match the class name + signature=text_signature, + docstring="\n".join([doc.strip(), *lines_extra]), + ) + add_newdoc('numpy._core.numerictypes', name, docstring) + + +for bool_name in ('bool', 'bool_'): + add_newdoc_for_scalar_type(bool_name, '(value=False, /)', """ +Boolean type (True or False), stored as a byte. + +.. warning:: + + The :class:`bool` type is not a subclass of the :class:`int_` type + (the :class:`bool` is not even a number type). This is different + than Python's default implementation of :class:`bool` as a + sub-class of :class:`int`. +""") + +add_newdoc_for_scalar_type('byte', '(value=0, /)', """ +Signed integer type, compatible with C ``char``. +""") + +add_newdoc_for_scalar_type('short', '(value=0, /)', """ +Signed integer type, compatible with C ``short``. +""") + +add_newdoc_for_scalar_type('intc', '(value=0, /)', """ +Signed integer type, compatible with C ``int``. +""") + +add_newdoc_for_scalar_type('long', '(value=0, /)', """ +Signed integer type, compatible with C ``long``. +""") + +# TODO: These docs probably need an if to highlight the default rather than +# the C-types (and be correct). +add_newdoc_for_scalar_type('int_', '(value=0, /)', """ +Default signed integer type, 64bit on 64bit systems and 32bit on 32bit systems. +""") + +add_newdoc_for_scalar_type('longlong', '(value=0, /)', """ +Signed integer type, compatible with C ``long long``. +""") + +add_newdoc_for_scalar_type('ubyte', '(value=0, /)', """ +Unsigned integer type, compatible with C ``unsigned char``. +""") + +add_newdoc_for_scalar_type('ushort', '(value=0, /)', """ +Unsigned integer type, compatible with C ``unsigned short``. +""") + +add_newdoc_for_scalar_type('uintc', '(value=0, /)', """ +Unsigned integer type, compatible with C ``unsigned int``. +""") + +add_newdoc_for_scalar_type('uint', '(value=0, /)', """ +Unsigned signed integer type, 64bit on 64bit systems and 32bit on 32bit systems. +""") + +add_newdoc_for_scalar_type('ulong', '(value=0, /)', """ +Unsigned integer type, compatible with C ``unsigned long``. +""") + +add_newdoc_for_scalar_type('ulonglong', '(value=0, /)', """ +Unsigned integer type, compatible with C ``unsigned long long``. +""") + +add_newdoc_for_scalar_type('half', '(value=0, /)', """ +Half-precision floating-point number type. +""") + +add_newdoc_for_scalar_type('single', '(value=0, /)', """ +Single-precision floating-point number type, compatible with C ``float``. +""") + +add_newdoc_for_scalar_type('double', '(value=0, /)', """ +Double-precision floating-point number type, compatible with Python :class:`float` and C ``double``. +""") + +add_newdoc_for_scalar_type('longdouble', '(value=0, /)', """ +Extended-precision floating-point number type, compatible with C ``long double`` +but not necessarily with IEEE 754 quadruple-precision. +""") + +add_newdoc_for_scalar_type('csingle', '(real=0, imag=0, /)', """ +Complex number type composed of two single-precision floating-point numbers. +""") + +add_newdoc_for_scalar_type('cdouble', '(real=0, imag=0, /)', """ +Complex number type composed of two double-precision floating-point numbers, +compatible with Python :class:`complex`. +""") + +add_newdoc_for_scalar_type('clongdouble', '(real=0, imag=0, /)', """ +Complex number type composed of two extended-precision floating-point numbers. +""") + +add_newdoc_for_scalar_type('object_', '(value=None, /)', """ +Any Python object. +""") + +add_newdoc_for_scalar_type('str_', '(value="", /, *args, **kwargs)', r""" +A unicode string. + +This type strips trailing null codepoints. + +>>> s = np.str_("abc\x00") +>>> s +'abc' + +Unlike the builtin :class:`str`, this supports the +:ref:`python:bufferobjects`, exposing its contents as UCS4: + +>>> m = memoryview(np.str_("abc")) +>>> m.format +'3w' +>>> m.tobytes() +b'a\x00\x00\x00b\x00\x00\x00c\x00\x00\x00' +""") + +add_newdoc_for_scalar_type('bytes_', '(value="", /, *args, **kwargs)', r""" +A byte string. + +When used in arrays, this type strips trailing null bytes. +""") + +add_newdoc_for_scalar_type('void', '(length_or_data, /, dtype=None)', r""" +np.void(length_or_data, /, dtype=None) + +Create a new structured or unstructured void scalar. + +Parameters +---------- +length_or_data : int, array-like, bytes-like, object + One of multiple meanings (see notes). The length or + bytes data of an unstructured void. Or alternatively, + the data to be stored in the new scalar when `dtype` + is provided. + This can be an array-like, in which case an array may + be returned. +dtype : dtype, optional + If provided the dtype of the new scalar. This dtype must + be "void" dtype (i.e. a structured or unstructured void, + see also :ref:`defining-structured-types`). + + .. versionadded:: 1.24 + +Notes +----- +For historical reasons and because void scalars can represent both +arbitrary byte data and structured dtypes, the void constructor +has three calling conventions: + +1. ``np.void(5)`` creates a ``dtype="V5"`` scalar filled with five + ``\0`` bytes. The 5 can be a Python or NumPy integer. +2. ``np.void(b"bytes-like")`` creates a void scalar from the byte string. + The dtype itemsize will match the byte string length, here ``"V10"``. +3. When a ``dtype=`` is passed the call is roughly the same as an + array creation. However, a void scalar rather than array is returned. + +Please see the examples which show all three different conventions. + +Examples +-------- +>>> np.void(5) +np.void(b'\x00\x00\x00\x00\x00') +>>> np.void(b'abcd') +np.void(b'\x61\x62\x63\x64') +>>> np.void((3.2, b'eggs'), dtype="d,S5") +np.void((3.2, b'eggs'), dtype=[('f0', '>> np.void(3, dtype=[('x', np.int8), ('y', np.int8)]) +np.void((3, 3), dtype=[('x', 'i1'), ('y', 'i1')]) +""") + +add_newdoc_for_scalar_type('datetime64', '(value=None, /, *args)', """ +If created from a 64-bit integer, it represents an offset from ``1970-01-01T00:00:00``. +If created from string, the string can be in ISO 8601 date or datetime format. + +When parsing a string to create a datetime object, if the string contains +a trailing timezone (A 'Z' or a timezone offset), the timezone will be +dropped and a User Warning is given. + +Datetime64 objects should be considered to be UTC and therefore have an +offset of +0000. + +>>> np.datetime64(10, 'Y') +np.datetime64('1980') +>>> np.datetime64('1980', 'Y') +np.datetime64('1980') +>>> np.datetime64(10, 'D') +np.datetime64('1970-01-11') + +See :ref:`arrays.datetime` for more information. +""") + +add_newdoc_for_scalar_type('timedelta64', '(value=0, /, *args)', """ +A timedelta stored as a 64-bit integer. + +See :ref:`arrays.datetime` for more information. +""") + +add_newdoc('numpy._core.numerictypes', "integer", ('is_integer', + """ + is_integer($self, /) + -- + + integer.is_integer() -> bool + + Return ``True`` if the number is finite with integral value. + + .. versionadded:: 1.22 + + Examples + -------- + >>> import numpy as np + >>> np.int64(-2).is_integer() + True + >>> np.uint32(5).is_integer() + True + """)) + +# TODO: work out how to put this on the base class, np.floating +for float_name in ('half', 'single', 'double', 'longdouble'): + add_newdoc('numpy._core.numerictypes', float_name, ('as_integer_ratio', + f""" + as_integer_ratio($self, /) + -- + + {float_name}.as_integer_ratio() -> (int, int) + + Return a pair of integers, whose ratio is exactly equal to the original + floating point number, and with a positive denominator. + Raise `OverflowError` on infinities and a `ValueError` on NaNs. + + >>> np.{float_name}(10.0).as_integer_ratio() + (10, 1) + >>> np.{float_name}(0.0).as_integer_ratio() + (0, 1) + >>> np.{float_name}(-.25).as_integer_ratio() + (-1, 4) + """)) + + add_newdoc('numpy._core.numerictypes', float_name, ('is_integer', + f""" + is_integer($self, /) + -- + + {float_name}.is_integer() -> bool + + Return ``True`` if the floating point number is finite with integral + value, and ``False`` otherwise. + + .. versionadded:: 1.22 + + Examples + -------- + >>> np.{float_name}(-2.0).is_integer() + True + >>> np.{float_name}(3.2).is_integer() + False + """)) + +for int_name in ('int8', 'uint8', 'int16', 'uint16', 'int32', 'uint32', + 'int64', 'uint64', 'int64', 'uint64', 'int64', 'uint64', + 'longlong', 'ulonglong'): + # Add negative examples for signed cases by checking typecode + add_newdoc('numpy._core.numerictypes', int_name, ('bit_count', + f""" + bit_count($self, /) + -- + + {int_name}.bit_count() -> int + + Computes the number of 1-bits in the absolute value of the input. + Analogous to the builtin `int.bit_count` or ``popcount`` in C++. + + Examples + -------- + >>> np.{int_name}(127).bit_count() + 7""" + + (f""" + >>> np.{int_name}(-127).bit_count() + 7 + """ if dtype(int_name).char.islower() else ""))) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_add_newdocs_scalars.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_add_newdocs_scalars.pyi new file mode 100644 index 0000000000000000000000000000000000000000..241f4a00bd45ac0dd201a77b545a2d98fa124ebd --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_add_newdocs_scalars.pyi @@ -0,0 +1,16 @@ +from typing import Final + +import numpy as np + +possible_aliases: Final[list[tuple[type[np.number], str, str]]] = ... +_system: Final[str] = ... +_machine: Final[str] = ... +_doc_alias_string: Final[str] = ... +_bool_docstring: Final[str] = ... +bool_name: str = ... +int_name: str = ... +float_name: str = ... + +def numeric_type_aliases(aliases: list[tuple[str, str]]) -> list[tuple[type[np.number], str, str]]: ... +def add_newdoc_for_scalar_type(name: str, text_signature: str, doc: str) -> None: ... +def _get_platform_and_machine() -> tuple[str, str]: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_asarray.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_asarray.py new file mode 100644 index 0000000000000000000000000000000000000000..edaff5222f6936779ddb6704087ececc46480a2b --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_asarray.py @@ -0,0 +1,130 @@ +""" +Functions in the ``as*array`` family that promote array-likes into arrays. + +`require` fits this category despite its name not matching this pattern. +""" +from .multiarray import array, asanyarray +from .overrides import array_function_dispatch, finalize_array_function_like, set_module + +__all__ = ["require"] + + +POSSIBLE_FLAGS = { + 'C': 'C', 'C_CONTIGUOUS': 'C', 'CONTIGUOUS': 'C', + 'F': 'F', 'F_CONTIGUOUS': 'F', 'FORTRAN': 'F', + 'A': 'A', 'ALIGNED': 'A', + 'W': 'W', 'WRITEABLE': 'W', + 'O': 'O', 'OWNDATA': 'O', + 'E': 'E', 'ENSUREARRAY': 'E' +} + + +@finalize_array_function_like +@set_module('numpy') +def require(a, dtype=None, requirements=None, *, like=None): + """ + Return an ndarray of the provided type that satisfies requirements. + + This function is useful to be sure that an array with the correct flags + is returned for passing to compiled code (perhaps through ctypes). + + Parameters + ---------- + a : array_like + The object to be converted to a type-and-requirement-satisfying array. + dtype : data-type + The required data-type. If None preserve the current dtype. If your + application requires the data to be in native byteorder, include + a byteorder specification as a part of the dtype specification. + requirements : str or sequence of str + The requirements list can be any of the following + + * 'F_CONTIGUOUS' ('F') - ensure a Fortran-contiguous array + * 'C_CONTIGUOUS' ('C') - ensure a C-contiguous array + * 'ALIGNED' ('A') - ensure a data-type aligned array + * 'WRITEABLE' ('W') - ensure a writable array + * 'OWNDATA' ('O') - ensure an array that owns its own data + * 'ENSUREARRAY', ('E') - ensure a base array, instead of a subclass + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + Returns + ------- + out : ndarray + Array with specified requirements and type if given. + + See Also + -------- + asarray : Convert input to an ndarray. + asanyarray : Convert to an ndarray, but pass through ndarray subclasses. + ascontiguousarray : Convert input to a contiguous array. + asfortranarray : Convert input to an ndarray with column-major + memory order. + ndarray.flags : Information about the memory layout of the array. + + Notes + ----- + The returned array will be guaranteed to have the listed requirements + by making a copy if needed. + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(6).reshape(2,3) + >>> x.flags + C_CONTIGUOUS : True + F_CONTIGUOUS : False + OWNDATA : False + WRITEABLE : True + ALIGNED : True + WRITEBACKIFCOPY : False + + >>> y = np.require(x, dtype=np.float32, requirements=['A', 'O', 'W', 'F']) + >>> y.flags + C_CONTIGUOUS : False + F_CONTIGUOUS : True + OWNDATA : True + WRITEABLE : True + ALIGNED : True + WRITEBACKIFCOPY : False + + """ + if like is not None: + return _require_with_like( + like, + a, + dtype=dtype, + requirements=requirements, + ) + + if not requirements: + return asanyarray(a, dtype=dtype) + + requirements = {POSSIBLE_FLAGS[x.upper()] for x in requirements} + + if 'E' in requirements: + requirements.remove('E') + subok = False + else: + subok = True + + order = 'A' + if requirements >= {'C', 'F'}: + raise ValueError('Cannot specify both "C" and "F" order') + elif 'F' in requirements: + order = 'F' + requirements.remove('F') + elif 'C' in requirements: + order = 'C' + requirements.remove('C') + + arr = array(a, dtype=dtype, order=order, copy=None, subok=subok) + + for prop in requirements: + if not arr.flags[prop]: + return arr.copy(order) + return arr + + +_require_with_like = array_function_dispatch()(require) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_asarray.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_asarray.pyi new file mode 100644 index 0000000000000000000000000000000000000000..6bef69d8e4eabd7e1318324cd731cb4492b0771f --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_asarray.pyi @@ -0,0 +1,43 @@ +from collections.abc import Iterable +from typing import Any, Literal, TypeAlias, TypeVar, overload + +from numpy._typing import DTypeLike, NDArray, _SupportsArrayFunc + +__all__ = ["require"] + +_ArrayT = TypeVar("_ArrayT", bound=NDArray[Any]) + +_Requirements: TypeAlias = Literal[ + "C", "C_CONTIGUOUS", "CONTIGUOUS", + "F", "F_CONTIGUOUS", "FORTRAN", + "A", "ALIGNED", + "W", "WRITEABLE", + "O", "OWNDATA" +] +_E: TypeAlias = Literal["E", "ENSUREARRAY"] +_RequirementsWithE: TypeAlias = _Requirements | _E + +@overload +def require( + a: _ArrayT, + dtype: None = None, + requirements: _Requirements | Iterable[_Requirements] | None = None, + *, + like: _SupportsArrayFunc | None = None +) -> _ArrayT: ... +@overload +def require( + a: object, + dtype: DTypeLike | None = None, + requirements: _E | Iterable[_RequirementsWithE] | None = None, + *, + like: _SupportsArrayFunc | None = None +) -> NDArray[Any]: ... +@overload +def require( + a: object, + dtype: DTypeLike | None = None, + requirements: _Requirements | Iterable[_Requirements] | None = None, + *, + like: _SupportsArrayFunc | None = None +) -> NDArray[Any]: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_dtype.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_dtype.py new file mode 100644 index 0000000000000000000000000000000000000000..6a8a091b269c2f0acd37e3844e4f09a35b71e098 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_dtype.py @@ -0,0 +1,366 @@ +""" +A place for code to be called from the implementation of np.dtype + +String handling is much easier to do correctly in python. +""" +import numpy as np + +_kind_to_stem = { + 'u': 'uint', + 'i': 'int', + 'c': 'complex', + 'f': 'float', + 'b': 'bool', + 'V': 'void', + 'O': 'object', + 'M': 'datetime', + 'm': 'timedelta', + 'S': 'bytes', + 'U': 'str', +} + + +def _kind_name(dtype): + try: + return _kind_to_stem[dtype.kind] + except KeyError as e: + raise RuntimeError( + f"internal dtype error, unknown kind {dtype.kind!r}" + ) from None + + +def __str__(dtype): + if dtype.fields is not None: + return _struct_str(dtype, include_align=True) + elif dtype.subdtype: + return _subarray_str(dtype) + elif issubclass(dtype.type, np.flexible) or not dtype.isnative: + return dtype.str + else: + return dtype.name + + +def __repr__(dtype): + arg_str = _construction_repr(dtype, include_align=False) + if dtype.isalignedstruct: + arg_str = arg_str + ", align=True" + return f"dtype({arg_str})" + + +def _unpack_field(dtype, offset, title=None): + """ + Helper function to normalize the items in dtype.fields. + + Call as: + + dtype, offset, title = _unpack_field(*dtype.fields[name]) + """ + return dtype, offset, title + + +def _isunsized(dtype): + # PyDataType_ISUNSIZED + return dtype.itemsize == 0 + + +def _construction_repr(dtype, include_align=False, short=False): + """ + Creates a string repr of the dtype, excluding the 'dtype()' part + surrounding the object. This object may be a string, a list, or + a dict depending on the nature of the dtype. This + is the object passed as the first parameter to the dtype + constructor, and if no additional constructor parameters are + given, will reproduce the exact memory layout. + + Parameters + ---------- + short : bool + If true, this creates a shorter repr using 'kind' and 'itemsize', + instead of the longer type name. + + include_align : bool + If true, this includes the 'align=True' parameter + inside the struct dtype construction dict when needed. Use this flag + if you want a proper repr string without the 'dtype()' part around it. + + If false, this does not preserve the + 'align=True' parameter or sticky NPY_ALIGNED_STRUCT flag for + struct arrays like the regular repr does, because the 'align' + flag is not part of first dtype constructor parameter. This + mode is intended for a full 'repr', where the 'align=True' is + provided as the second parameter. + """ + if dtype.fields is not None: + return _struct_str(dtype, include_align=include_align) + elif dtype.subdtype: + return _subarray_str(dtype) + else: + return _scalar_str(dtype, short=short) + + +def _scalar_str(dtype, short): + byteorder = _byte_order_str(dtype) + + if dtype.type == np.bool: + if short: + return "'?'" + else: + return "'bool'" + + elif dtype.type == np.object_: + # The object reference may be different sizes on different + # platforms, so it should never include the itemsize here. + return "'O'" + + elif dtype.type == np.bytes_: + if _isunsized(dtype): + return "'S'" + else: + return "'S%d'" % dtype.itemsize + + elif dtype.type == np.str_: + if _isunsized(dtype): + return f"'{byteorder}U'" + else: + return "'%sU%d'" % (byteorder, dtype.itemsize / 4) + + elif dtype.type == str: + return "'T'" + + elif not type(dtype)._legacy: + return f"'{byteorder}{type(dtype).__name__}{dtype.itemsize * 8}'" + + # unlike the other types, subclasses of void are preserved - but + # historically the repr does not actually reveal the subclass + elif issubclass(dtype.type, np.void): + if _isunsized(dtype): + return "'V'" + else: + return "'V%d'" % dtype.itemsize + + elif dtype.type == np.datetime64: + return f"'{byteorder}M8{_datetime_metadata_str(dtype)}'" + + elif dtype.type == np.timedelta64: + return f"'{byteorder}m8{_datetime_metadata_str(dtype)}'" + + elif dtype.isbuiltin == 2: + return dtype.type.__name__ + + elif np.issubdtype(dtype, np.number): + # Short repr with endianness, like '' """ + # hack to obtain the native and swapped byte order characters + swapped = np.dtype(int).newbyteorder('S') + native = swapped.newbyteorder('S') + + byteorder = dtype.byteorder + if byteorder == '=': + return native.byteorder + if byteorder == 'S': + # TODO: this path can never be reached + return swapped.byteorder + elif byteorder == '|': + return '' + else: + return byteorder + + +def _datetime_metadata_str(dtype): + # TODO: this duplicates the C metastr_to_unicode functionality + unit, count = np.datetime_data(dtype) + if unit == 'generic': + return '' + elif count == 1: + return f'[{unit}]' + else: + return f'[{count}{unit}]' + + +def _struct_dict_str(dtype, includealignedflag): + # unpack the fields dictionary into ls + names = dtype.names + fld_dtypes = [] + offsets = [] + titles = [] + for name in names: + fld_dtype, offset, title = _unpack_field(*dtype.fields[name]) + fld_dtypes.append(fld_dtype) + offsets.append(offset) + titles.append(title) + + # Build up a string to make the dictionary + + if np._core.arrayprint._get_legacy_print_mode() <= 121: + colon = ":" + fieldsep = "," + else: + colon = ": " + fieldsep = ", " + + # First, the names + ret = "{'names'%s[" % colon + ret += fieldsep.join(repr(name) for name in names) + + # Second, the formats + ret += f"], 'formats'{colon}[" + ret += fieldsep.join( + _construction_repr(fld_dtype, short=True) for fld_dtype in fld_dtypes) + + # Third, the offsets + ret += f"], 'offsets'{colon}[" + ret += fieldsep.join("%d" % offset for offset in offsets) + + # Fourth, the titles + if any(title is not None for title in titles): + ret += f"], 'titles'{colon}[" + ret += fieldsep.join(repr(title) for title in titles) + + # Fifth, the itemsize + ret += "], 'itemsize'%s%d" % (colon, dtype.itemsize) + + if (includealignedflag and dtype.isalignedstruct): + # Finally, the aligned flag + ret += ", 'aligned'%sTrue}" % colon + else: + ret += "}" + + return ret + + +def _aligned_offset(offset, alignment): + # round up offset: + return - (-offset // alignment) * alignment + + +def _is_packed(dtype): + """ + Checks whether the structured data type in 'dtype' + has a simple layout, where all the fields are in order, + and follow each other with no alignment padding. + + When this returns true, the dtype can be reconstructed + from a list of the field names and dtypes with no additional + dtype parameters. + + Duplicates the C `is_dtype_struct_simple_unaligned_layout` function. + """ + align = dtype.isalignedstruct + max_alignment = 1 + total_offset = 0 + for name in dtype.names: + fld_dtype, fld_offset, title = _unpack_field(*dtype.fields[name]) + + if align: + total_offset = _aligned_offset(total_offset, fld_dtype.alignment) + max_alignment = max(max_alignment, fld_dtype.alignment) + + if fld_offset != total_offset: + return False + total_offset += fld_dtype.itemsize + + if align: + total_offset = _aligned_offset(total_offset, max_alignment) + + return total_offset == dtype.itemsize + + +def _struct_list_str(dtype): + items = [] + for name in dtype.names: + fld_dtype, fld_offset, title = _unpack_field(*dtype.fields[name]) + + item = "(" + if title is not None: + item += f"({title!r}, {name!r}), " + else: + item += f"{name!r}, " + # Special case subarray handling here + if fld_dtype.subdtype is not None: + base, shape = fld_dtype.subdtype + item += f"{_construction_repr(base, short=True)}, {shape}" + else: + item += _construction_repr(fld_dtype, short=True) + + item += ")" + items.append(item) + + return "[" + ", ".join(items) + "]" + + +def _struct_str(dtype, include_align): + # The list str representation can't include the 'align=' flag, + # so if it is requested and the struct has the aligned flag set, + # we must use the dict str instead. + if not (include_align and dtype.isalignedstruct) and _is_packed(dtype): + sub = _struct_list_str(dtype) + + else: + sub = _struct_dict_str(dtype, include_align) + + # If the data type isn't the default, void, show it + if dtype.type != np.void: + return f"({dtype.type.__module__}.{dtype.type.__name__}, {sub})" + else: + return sub + + +def _subarray_str(dtype): + base, shape = dtype.subdtype + return f"({_construction_repr(base, short=True)}, {shape})" + + +def _name_includes_bit_suffix(dtype): + if dtype.type == np.object_: + # pointer size varies by system, best to omit it + return False + elif dtype.type == np.bool: + # implied + return False + elif dtype.type is None: + return True + elif np.issubdtype(dtype, np.flexible) and _isunsized(dtype): + # unspecified + return False + else: + return True + + +def _name_get(dtype): + # provides dtype.name.__get__, documented as returning a "bit name" + + if dtype.isbuiltin == 2: + # user dtypes don't promise to do anything special + return dtype.type.__name__ + + if not type(dtype)._legacy: + name = type(dtype).__name__ + + elif issubclass(dtype.type, np.void): + # historically, void subclasses preserve their name, eg `record64` + name = dtype.type.__name__ + else: + name = _kind_name(dtype) + + # append bit counts + if _name_includes_bit_suffix(dtype): + name += f"{dtype.itemsize * 8}" + + # append metadata to datetimes + if dtype.type in (np.datetime64, np.timedelta64): + name += _datetime_metadata_str(dtype) + + return name diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_dtype.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_dtype.pyi new file mode 100644 index 0000000000000000000000000000000000000000..28adecf4ad2f24b139f55676750548ee7e8c5cd6 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_dtype.pyi @@ -0,0 +1,56 @@ +from typing import Final, Literal as L, TypeAlias, TypedDict, overload, type_check_only +from typing_extensions import ReadOnly, TypeVar + +import numpy as np + +### + +_T = TypeVar("_T") + +_Name: TypeAlias = L["uint", "int", "complex", "float", "bool", "void", "object", "datetime", "timedelta", "bytes", "str"] + +@type_check_only +class _KindToStemType(TypedDict): + u: ReadOnly[L["uint"]] + i: ReadOnly[L["int"]] + c: ReadOnly[L["complex"]] + f: ReadOnly[L["float"]] + b: ReadOnly[L["bool"]] + V: ReadOnly[L["void"]] + O: ReadOnly[L["object"]] + M: ReadOnly[L["datetime"]] + m: ReadOnly[L["timedelta"]] + S: ReadOnly[L["bytes"]] + U: ReadOnly[L["str"]] + +### + +_kind_to_stem: Final[_KindToStemType] = ... + +# +def _kind_name(dtype: np.dtype) -> _Name: ... +def __str__(dtype: np.dtype) -> str: ... +def __repr__(dtype: np.dtype) -> str: ... + +# +def _isunsized(dtype: np.dtype) -> bool: ... +def _is_packed(dtype: np.dtype) -> bool: ... +def _name_includes_bit_suffix(dtype: np.dtype) -> bool: ... + +# +def _construction_repr(dtype: np.dtype, include_align: bool = False, short: bool = False) -> str: ... +def _scalar_str(dtype: np.dtype, short: bool) -> str: ... +def _byte_order_str(dtype: np.dtype) -> str: ... +def _datetime_metadata_str(dtype: np.dtype) -> str: ... +def _struct_dict_str(dtype: np.dtype, includealignedflag: bool) -> str: ... +def _struct_list_str(dtype: np.dtype) -> str: ... +def _struct_str(dtype: np.dtype, include_align: bool) -> str: ... +def _subarray_str(dtype: np.dtype) -> str: ... +def _name_get(dtype: np.dtype) -> str: ... + +# +@overload +def _unpack_field(dtype: np.dtype, offset: int, title: _T) -> tuple[np.dtype, int, _T]: ... +@overload +def _unpack_field(dtype: np.dtype, offset: int, title: None = None) -> tuple[np.dtype, int, None]: ... +def _aligned_offset(offset: int, alignment: int) -> int: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_dtype_ctypes.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_dtype_ctypes.py new file mode 100644 index 0000000000000000000000000000000000000000..4de6df6dbd37d63ecb259584c71a5c5d91f45a0c --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_dtype_ctypes.py @@ -0,0 +1,120 @@ +""" +Conversion from ctypes to dtype. + +In an ideal world, we could achieve this through the PEP3118 buffer protocol, +something like:: + + def dtype_from_ctypes_type(t): + # needed to ensure that the shape of `t` is within memoryview.format + class DummyStruct(ctypes.Structure): + _fields_ = [('a', t)] + + # empty to avoid memory allocation + ctype_0 = (DummyStruct * 0)() + mv = memoryview(ctype_0) + + # convert the struct, and slice back out the field + return _dtype_from_pep3118(mv.format)['a'] + +Unfortunately, this fails because: + +* ctypes cannot handle length-0 arrays with PEP3118 (bpo-32782) +* PEP3118 cannot represent unions, but both numpy and ctypes can +* ctypes cannot handle big-endian structs with PEP3118 (bpo-32780) +""" + +# We delay-import ctypes for distributions that do not include it. +# While this module is not used unless the user passes in ctypes +# members, it is eagerly imported from numpy/_core/__init__.py. +import numpy as np + + +def _from_ctypes_array(t): + return np.dtype((dtype_from_ctypes_type(t._type_), (t._length_,))) + + +def _from_ctypes_structure(t): + for item in t._fields_: + if len(item) > 2: + raise TypeError( + "ctypes bitfields have no dtype equivalent") + + if hasattr(t, "_pack_"): + import ctypes + formats = [] + offsets = [] + names = [] + current_offset = 0 + for fname, ftyp in t._fields_: + names.append(fname) + formats.append(dtype_from_ctypes_type(ftyp)) + # Each type has a default offset, this is platform dependent + # for some types. + effective_pack = min(t._pack_, ctypes.alignment(ftyp)) + current_offset = ( + (current_offset + effective_pack - 1) // effective_pack + ) * effective_pack + offsets.append(current_offset) + current_offset += ctypes.sizeof(ftyp) + + return np.dtype({ + "formats": formats, + "offsets": offsets, + "names": names, + "itemsize": ctypes.sizeof(t)}) + else: + fields = [] + for fname, ftyp in t._fields_: + fields.append((fname, dtype_from_ctypes_type(ftyp))) + + # by default, ctypes structs are aligned + return np.dtype(fields, align=True) + + +def _from_ctypes_scalar(t): + """ + Return the dtype type with endianness included if it's the case + """ + if getattr(t, '__ctype_be__', None) is t: + return np.dtype('>' + t._type_) + elif getattr(t, '__ctype_le__', None) is t: + return np.dtype('<' + t._type_) + else: + return np.dtype(t._type_) + + +def _from_ctypes_union(t): + import ctypes + formats = [] + offsets = [] + names = [] + for fname, ftyp in t._fields_: + names.append(fname) + formats.append(dtype_from_ctypes_type(ftyp)) + offsets.append(0) # Union fields are offset to 0 + + return np.dtype({ + "formats": formats, + "offsets": offsets, + "names": names, + "itemsize": ctypes.sizeof(t)}) + + +def dtype_from_ctypes_type(t): + """ + Construct a dtype object from a ctypes type + """ + import _ctypes + if issubclass(t, _ctypes.Array): + return _from_ctypes_array(t) + elif issubclass(t, _ctypes._Pointer): + raise TypeError("ctypes pointers have no dtype equivalent") + elif issubclass(t, _ctypes.Structure): + return _from_ctypes_structure(t) + elif issubclass(t, _ctypes.Union): + return _from_ctypes_union(t) + elif isinstance(getattr(t, '_type_', None), str): + return _from_ctypes_scalar(t) + else: + raise NotImplementedError( + f"Unknown ctypes type {t.__name__}") diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_dtype_ctypes.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_dtype_ctypes.pyi new file mode 100644 index 0000000000000000000000000000000000000000..69438a2c1b4c98cda8b36d45440fd459f118ebb9 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_dtype_ctypes.pyi @@ -0,0 +1,83 @@ +import _ctypes +import ctypes as ct +from typing import Any, overload + +import numpy as np + +# +@overload +def dtype_from_ctypes_type(t: type[_ctypes.Array[Any] | _ctypes.Structure]) -> np.dtype[np.void]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_bool]) -> np.dtype[np.bool]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_int8 | ct.c_byte]) -> np.dtype[np.int8]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_uint8 | ct.c_ubyte]) -> np.dtype[np.uint8]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_int16 | ct.c_short]) -> np.dtype[np.int16]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_uint16 | ct.c_ushort]) -> np.dtype[np.uint16]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_int32 | ct.c_int]) -> np.dtype[np.int32]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_uint32 | ct.c_uint]) -> np.dtype[np.uint32]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_ssize_t | ct.c_long]) -> np.dtype[np.int32 | np.int64]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_size_t | ct.c_ulong]) -> np.dtype[np.uint32 | np.uint64]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_int64 | ct.c_longlong]) -> np.dtype[np.int64]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_uint64 | ct.c_ulonglong]) -> np.dtype[np.uint64]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_float]) -> np.dtype[np.float32]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_double]) -> np.dtype[np.float64]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_longdouble]) -> np.dtype[np.longdouble]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.c_char]) -> np.dtype[np.bytes_]: ... +@overload +def dtype_from_ctypes_type(t: type[ct.py_object[Any]]) -> np.dtype[np.object_]: ... + +# NOTE: the complex ctypes on python>=3.14 are not yet supported at runtim, see +# https://github.com/numpy/numpy/issues/28360 + +# +def _from_ctypes_array(t: type[_ctypes.Array[Any]]) -> np.dtype[np.void]: ... +def _from_ctypes_structure(t: type[_ctypes.Structure]) -> np.dtype[np.void]: ... +def _from_ctypes_union(t: type[_ctypes.Union]) -> np.dtype[np.void]: ... + +# keep in sync with `dtype_from_ctypes_type` (minus the first overload) +@overload +def _from_ctypes_scalar(t: type[ct.c_bool]) -> np.dtype[np.bool]: ... +@overload +def _from_ctypes_scalar(t: type[ct.c_int8 | ct.c_byte]) -> np.dtype[np.int8]: ... +@overload +def _from_ctypes_scalar(t: type[ct.c_uint8 | ct.c_ubyte]) -> np.dtype[np.uint8]: ... +@overload +def _from_ctypes_scalar(t: type[ct.c_int16 | ct.c_short]) -> np.dtype[np.int16]: ... +@overload +def _from_ctypes_scalar(t: type[ct.c_uint16 | ct.c_ushort]) -> np.dtype[np.uint16]: ... +@overload +def _from_ctypes_scalar(t: type[ct.c_int32 | ct.c_int]) -> np.dtype[np.int32]: ... +@overload +def _from_ctypes_scalar(t: type[ct.c_uint32 | ct.c_uint]) -> np.dtype[np.uint32]: ... +@overload +def _from_ctypes_scalar(t: type[ct.c_ssize_t | ct.c_long]) -> np.dtype[np.int32 | np.int64]: ... +@overload +def _from_ctypes_scalar(t: type[ct.c_size_t | ct.c_ulong]) -> np.dtype[np.uint32 | np.uint64]: ... +@overload +def _from_ctypes_scalar(t: type[ct.c_int64 | ct.c_longlong]) -> np.dtype[np.int64]: ... +@overload +def _from_ctypes_scalar(t: type[ct.c_uint64 | ct.c_ulonglong]) -> np.dtype[np.uint64]: ... +@overload +def _from_ctypes_scalar(t: type[ct.c_float]) -> np.dtype[np.float32]: ... +@overload +def _from_ctypes_scalar(t: type[ct.c_double]) -> np.dtype[np.float64]: ... +@overload +def _from_ctypes_scalar(t: type[ct.c_longdouble]) -> np.dtype[np.longdouble]: ... +@overload +def _from_ctypes_scalar(t: type[ct.c_char]) -> np.dtype[np.bytes_]: ... +@overload +def _from_ctypes_scalar(t: type[ct.py_object[Any]]) -> np.dtype[np.object_]: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_exceptions.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_exceptions.py new file mode 100644 index 0000000000000000000000000000000000000000..73b07d25ef1f2b4b7a3c81ead115a3b8382b0730 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_exceptions.py @@ -0,0 +1,162 @@ +""" +Various richly-typed exceptions, that also help us deal with string formatting +in python where it's easier. + +By putting the formatting in `__str__`, we also avoid paying the cost for +users who silence the exceptions. +""" + +def _unpack_tuple(tup): + if len(tup) == 1: + return tup[0] + else: + return tup + + +def _display_as_base(cls): + """ + A decorator that makes an exception class look like its base. + + We use this to hide subclasses that are implementation details - the user + should catch the base type, which is what the traceback will show them. + + Classes decorated with this decorator are subject to removal without a + deprecation warning. + """ + assert issubclass(cls, Exception) + cls.__name__ = cls.__base__.__name__ + return cls + + +class UFuncTypeError(TypeError): + """ Base class for all ufunc exceptions """ + def __init__(self, ufunc): + self.ufunc = ufunc + + +@_display_as_base +class _UFuncNoLoopError(UFuncTypeError): + """ Thrown when a ufunc loop cannot be found """ + def __init__(self, ufunc, dtypes): + super().__init__(ufunc) + self.dtypes = tuple(dtypes) + + def __str__(self): + return ( + f"ufunc {self.ufunc.__name__!r} did not contain a loop with signature " + f"matching types {_unpack_tuple(self.dtypes[:self.ufunc.nin])!r} " + f"-> {_unpack_tuple(self.dtypes[self.ufunc.nin:])!r}" + ) + + +@_display_as_base +class _UFuncBinaryResolutionError(_UFuncNoLoopError): + """ Thrown when a binary resolution fails """ + def __init__(self, ufunc, dtypes): + super().__init__(ufunc, dtypes) + assert len(self.dtypes) == 2 + + def __str__(self): + return ( + "ufunc {!r} cannot use operands with types {!r} and {!r}" + ).format( + self.ufunc.__name__, *self.dtypes + ) + + +@_display_as_base +class _UFuncCastingError(UFuncTypeError): + def __init__(self, ufunc, casting, from_, to): + super().__init__(ufunc) + self.casting = casting + self.from_ = from_ + self.to = to + + +@_display_as_base +class _UFuncInputCastingError(_UFuncCastingError): + """ Thrown when a ufunc input cannot be casted """ + def __init__(self, ufunc, casting, from_, to, i): + super().__init__(ufunc, casting, from_, to) + self.in_i = i + + def __str__(self): + # only show the number if more than one input exists + i_str = f"{self.in_i} " if self.ufunc.nin != 1 else "" + return ( + f"Cannot cast ufunc {self.ufunc.__name__!r} input {i_str}from " + f"{self.from_!r} to {self.to!r} with casting rule {self.casting!r}" + ) + + +@_display_as_base +class _UFuncOutputCastingError(_UFuncCastingError): + """ Thrown when a ufunc output cannot be casted """ + def __init__(self, ufunc, casting, from_, to, i): + super().__init__(ufunc, casting, from_, to) + self.out_i = i + + def __str__(self): + # only show the number if more than one output exists + i_str = f"{self.out_i} " if self.ufunc.nout != 1 else "" + return ( + f"Cannot cast ufunc {self.ufunc.__name__!r} output {i_str}from " + f"{self.from_!r} to {self.to!r} with casting rule {self.casting!r}" + ) + + +@_display_as_base +class _ArrayMemoryError(MemoryError): + """ Thrown when an array cannot be allocated""" + def __init__(self, shape, dtype): + self.shape = shape + self.dtype = dtype + + @property + def _total_size(self): + num_bytes = self.dtype.itemsize + for dim in self.shape: + num_bytes *= dim + return num_bytes + + @staticmethod + def _size_to_string(num_bytes): + """ Convert a number of bytes into a binary size string """ + + # https://en.wikipedia.org/wiki/Binary_prefix + LOG2_STEP = 10 + STEP = 1024 + units = ['bytes', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB'] + + unit_i = max(num_bytes.bit_length() - 1, 1) // LOG2_STEP + unit_val = 1 << (unit_i * LOG2_STEP) + n_units = num_bytes / unit_val + del unit_val + + # ensure we pick a unit that is correct after rounding + if round(n_units) == STEP: + unit_i += 1 + n_units /= STEP + + # deal with sizes so large that we don't have units for them + if unit_i >= len(units): + new_unit_i = len(units) - 1 + n_units *= 1 << ((unit_i - new_unit_i) * LOG2_STEP) + unit_i = new_unit_i + + unit_name = units[unit_i] + # format with a sensible number of digits + if unit_i == 0: + # no decimal point on bytes + return f'{n_units:.0f} {unit_name}' + elif round(n_units) < 1000: + # 3 significant figures, if none are dropped to the left of the . + return f'{n_units:#.3g} {unit_name}' + else: + # just give all the digits otherwise + return f'{n_units:#.0f} {unit_name}' + + def __str__(self): + size_str = self._size_to_string(self._total_size) + return (f"Unable to allocate {size_str} for an array with shape " + f"{self.shape} and data type {self.dtype}") diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_exceptions.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_exceptions.pyi new file mode 100644 index 0000000000000000000000000000000000000000..b340fde3e46331e9f4ef2fa8ab8920a5dd1e45df --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_exceptions.pyi @@ -0,0 +1,54 @@ +from collections.abc import Iterable +from typing import Any, Final, TypeVar, overload + +import numpy as np +from numpy import _CastingKind + +### + +_T = TypeVar("_T") +_TupleT = TypeVar("_TupleT", bound=tuple[()] | tuple[Any, Any, *tuple[Any, ...]]) +_ExceptionT = TypeVar("_ExceptionT", bound=Exception) + +### + +class UFuncTypeError(TypeError): + ufunc: Final[np.ufunc] + def __init__(self, /, ufunc: np.ufunc) -> None: ... + +class _UFuncNoLoopError(UFuncTypeError): + dtypes: tuple[np.dtype, ...] + def __init__(self, /, ufunc: np.ufunc, dtypes: Iterable[np.dtype]) -> None: ... + +class _UFuncBinaryResolutionError(_UFuncNoLoopError): + dtypes: tuple[np.dtype, np.dtype] + def __init__(self, /, ufunc: np.ufunc, dtypes: Iterable[np.dtype]) -> None: ... + +class _UFuncCastingError(UFuncTypeError): + casting: Final[_CastingKind] + from_: Final[np.dtype] + to: Final[np.dtype] + def __init__(self, /, ufunc: np.ufunc, casting: _CastingKind, from_: np.dtype, to: np.dtype) -> None: ... + +class _UFuncInputCastingError(_UFuncCastingError): + in_i: Final[int] + def __init__(self, /, ufunc: np.ufunc, casting: _CastingKind, from_: np.dtype, to: np.dtype, i: int) -> None: ... + +class _UFuncOutputCastingError(_UFuncCastingError): + out_i: Final[int] + def __init__(self, /, ufunc: np.ufunc, casting: _CastingKind, from_: np.dtype, to: np.dtype, i: int) -> None: ... + +class _ArrayMemoryError(MemoryError): + shape: tuple[int, ...] + dtype: np.dtype + def __init__(self, /, shape: tuple[int, ...], dtype: np.dtype) -> None: ... + @property + def _total_size(self) -> int: ... + @staticmethod + def _size_to_string(num_bytes: int) -> str: ... + +@overload +def _unpack_tuple(tup: tuple[_T]) -> _T: ... +@overload +def _unpack_tuple(tup: _TupleT) -> _TupleT: ... +def _display_as_base(cls: type[_ExceptionT]) -> type[_ExceptionT]: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_internal.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_internal.py new file mode 100644 index 0000000000000000000000000000000000000000..7c64daf30dbd660bf289d24219e2831897bb42d5 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_internal.py @@ -0,0 +1,968 @@ +""" +A place for internal code + +Some things are more easily handled Python. + +""" +import ast +import math +import re +import sys +import warnings + +from numpy import _NoValue +from numpy.exceptions import DTypePromotionError + +from .multiarray import StringDType, array, dtype, promote_types + +try: + import ctypes +except ImportError: + ctypes = None + +IS_PYPY = sys.implementation.name == 'pypy' + +if sys.byteorder == 'little': + _nbo = '<' +else: + _nbo = '>' + +def _makenames_list(adict, align): + allfields = [] + + for fname, obj in adict.items(): + n = len(obj) + if not isinstance(obj, tuple) or n not in (2, 3): + raise ValueError("entry not a 2- or 3- tuple") + if n > 2 and obj[2] == fname: + continue + num = int(obj[1]) + if num < 0: + raise ValueError("invalid offset.") + format = dtype(obj[0], align=align) + if n > 2: + title = obj[2] + else: + title = None + allfields.append((fname, format, num, title)) + # sort by offsets + allfields.sort(key=lambda x: x[2]) + names = [x[0] for x in allfields] + formats = [x[1] for x in allfields] + offsets = [x[2] for x in allfields] + titles = [x[3] for x in allfields] + + return names, formats, offsets, titles + +# Called in PyArray_DescrConverter function when +# a dictionary without "names" and "formats" +# fields is used as a data-type descriptor. +def _usefields(adict, align): + try: + names = adict[-1] + except KeyError: + names = None + if names is None: + names, formats, offsets, titles = _makenames_list(adict, align) + else: + formats = [] + offsets = [] + titles = [] + for name in names: + res = adict[name] + formats.append(res[0]) + offsets.append(res[1]) + if len(res) > 2: + titles.append(res[2]) + else: + titles.append(None) + + return dtype({"names": names, + "formats": formats, + "offsets": offsets, + "titles": titles}, align) + + +# construct an array_protocol descriptor list +# from the fields attribute of a descriptor +# This calls itself recursively but should eventually hit +# a descriptor that has no fields and then return +# a simple typestring + +def _array_descr(descriptor): + fields = descriptor.fields + if fields is None: + subdtype = descriptor.subdtype + if subdtype is None: + if descriptor.metadata is None: + return descriptor.str + else: + new = descriptor.metadata.copy() + if new: + return (descriptor.str, new) + else: + return descriptor.str + else: + return (_array_descr(subdtype[0]), subdtype[1]) + + names = descriptor.names + ordered_fields = [fields[x] + (x,) for x in names] + result = [] + offset = 0 + for field in ordered_fields: + if field[1] > offset: + num = field[1] - offset + result.append(('', f'|V{num}')) + offset += num + elif field[1] < offset: + raise ValueError( + "dtype.descr is not defined for types with overlapping or " + "out-of-order fields") + if len(field) > 3: + name = (field[2], field[3]) + else: + name = field[2] + if field[0].subdtype: + tup = (name, _array_descr(field[0].subdtype[0]), + field[0].subdtype[1]) + else: + tup = (name, _array_descr(field[0])) + offset += field[0].itemsize + result.append(tup) + + if descriptor.itemsize > offset: + num = descriptor.itemsize - offset + result.append(('', f'|V{num}')) + + return result + + +# format_re was originally from numarray by J. Todd Miller + +format_re = re.compile(r'(?P[<>|=]?)' + r'(?P *[(]?[ ,0-9]*[)]? *)' + r'(?P[<>|=]?)' + r'(?P[A-Za-z0-9.?]*(?:\[[a-zA-Z0-9,.]+\])?)') +sep_re = re.compile(r'\s*,\s*') +space_re = re.compile(r'\s+$') + +# astr is a string (perhaps comma separated) + +_convorder = {'=': _nbo} + +def _commastring(astr): + startindex = 0 + result = [] + islist = False + while startindex < len(astr): + mo = format_re.match(astr, pos=startindex) + try: + (order1, repeats, order2, dtype) = mo.groups() + except (TypeError, AttributeError): + raise ValueError( + f'format number {len(result) + 1} of "{astr}" is not recognized' + ) from None + startindex = mo.end() + # Separator or ending padding + if startindex < len(astr): + if space_re.match(astr, pos=startindex): + startindex = len(astr) + else: + mo = sep_re.match(astr, pos=startindex) + if not mo: + raise ValueError( + 'format number %d of "%s" is not recognized' % + (len(result) + 1, astr)) + startindex = mo.end() + islist = True + + if order2 == '': + order = order1 + elif order1 == '': + order = order2 + else: + order1 = _convorder.get(order1, order1) + order2 = _convorder.get(order2, order2) + if (order1 != order2): + raise ValueError( + f'inconsistent byte-order specification {order1} and {order2}') + order = order1 + + if order in ('|', '=', _nbo): + order = '' + dtype = order + dtype + if repeats == '': + newitem = dtype + else: + if (repeats[0] == "(" and repeats[-1] == ")" + and repeats[1:-1].strip() != "" + and "," not in repeats): + warnings.warn( + 'Passing in a parenthesized single number for repeats ' + 'is deprecated; pass either a single number or indicate ' + 'a tuple with a comma, like "(2,)".', DeprecationWarning, + stacklevel=2) + newitem = (dtype, ast.literal_eval(repeats)) + + result.append(newitem) + + return result if islist else result[0] + +class dummy_ctype: + + def __init__(self, cls): + self._cls = cls + + def __mul__(self, other): + return self + + def __call__(self, *other): + return self._cls(other) + + def __eq__(self, other): + return self._cls == other._cls + + def __ne__(self, other): + return self._cls != other._cls + +def _getintp_ctype(): + val = _getintp_ctype.cache + if val is not None: + return val + if ctypes is None: + import numpy as np + val = dummy_ctype(np.intp) + else: + char = dtype('n').char + if char == 'i': + val = ctypes.c_int + elif char == 'l': + val = ctypes.c_long + elif char == 'q': + val = ctypes.c_longlong + else: + val = ctypes.c_long + _getintp_ctype.cache = val + return val + + +_getintp_ctype.cache = None + +# Used for .ctypes attribute of ndarray + +class _missing_ctypes: + def cast(self, num, obj): + return num.value + + class c_void_p: + def __init__(self, ptr): + self.value = ptr + + +class _ctypes: + def __init__(self, array, ptr=None): + self._arr = array + + if ctypes: + self._ctypes = ctypes + self._data = self._ctypes.c_void_p(ptr) + else: + # fake a pointer-like object that holds onto the reference + self._ctypes = _missing_ctypes() + self._data = self._ctypes.c_void_p(ptr) + self._data._objects = array + + if self._arr.ndim == 0: + self._zerod = True + else: + self._zerod = False + + def data_as(self, obj): + """ + Return the data pointer cast to a particular c-types object. + For example, calling ``self._as_parameter_`` is equivalent to + ``self.data_as(ctypes.c_void_p)``. Perhaps you want to use + the data as a pointer to a ctypes array of floating-point data: + ``self.data_as(ctypes.POINTER(ctypes.c_double))``. + + The returned pointer will keep a reference to the array. + """ + # _ctypes.cast function causes a circular reference of self._data in + # self._data._objects. Attributes of self._data cannot be released + # until gc.collect is called. Make a copy of the pointer first then + # let it hold the array reference. This is a workaround to circumvent + # the CPython bug https://bugs.python.org/issue12836. + ptr = self._ctypes.cast(self._data, obj) + ptr._arr = self._arr + return ptr + + def shape_as(self, obj): + """ + Return the shape tuple as an array of some other c-types + type. For example: ``self.shape_as(ctypes.c_short)``. + """ + if self._zerod: + return None + return (obj * self._arr.ndim)(*self._arr.shape) + + def strides_as(self, obj): + """ + Return the strides tuple as an array of some other + c-types type. For example: ``self.strides_as(ctypes.c_longlong)``. + """ + if self._zerod: + return None + return (obj * self._arr.ndim)(*self._arr.strides) + + @property + def data(self): + """ + A pointer to the memory area of the array as a Python integer. + This memory area may contain data that is not aligned, or not in + correct byte-order. The memory area may not even be writeable. + The array flags and data-type of this array should be respected + when passing this attribute to arbitrary C-code to avoid trouble + that can include Python crashing. User Beware! The value of this + attribute is exactly the same as: + ``self._array_interface_['data'][0]``. + + Note that unlike ``data_as``, a reference won't be kept to the array: + code like ``ctypes.c_void_p((a + b).ctypes.data)`` will result in a + pointer to a deallocated array, and should be spelt + ``(a + b).ctypes.data_as(ctypes.c_void_p)`` + """ + return self._data.value + + @property + def shape(self): + """ + (c_intp*self.ndim): A ctypes array of length self.ndim where + the basetype is the C-integer corresponding to ``dtype('p')`` on this + platform (see `~numpy.ctypeslib.c_intp`). This base-type could be + `ctypes.c_int`, `ctypes.c_long`, or `ctypes.c_longlong` depending on + the platform. The ctypes array contains the shape of + the underlying array. + """ + return self.shape_as(_getintp_ctype()) + + @property + def strides(self): + """ + (c_intp*self.ndim): A ctypes array of length self.ndim where + the basetype is the same as for the shape attribute. This ctypes + array contains the strides information from the underlying array. + This strides information is important for showing how many bytes + must be jumped to get to the next element in the array. + """ + return self.strides_as(_getintp_ctype()) + + @property + def _as_parameter_(self): + """ + Overrides the ctypes semi-magic method + + Enables `c_func(some_array.ctypes)` + """ + return self.data_as(ctypes.c_void_p) + + +def _newnames(datatype, order): + """ + Given a datatype and an order object, return a new names tuple, with the + order indicated + """ + oldnames = datatype.names + nameslist = list(oldnames) + if isinstance(order, str): + order = [order] + seen = set() + if isinstance(order, (list, tuple)): + for name in order: + try: + nameslist.remove(name) + except ValueError: + if name in seen: + raise ValueError(f"duplicate field name: {name}") from None + else: + raise ValueError(f"unknown field name: {name}") from None + seen.add(name) + return tuple(list(order) + nameslist) + raise ValueError(f"unsupported order value: {order}") + +def _copy_fields(ary): + """Return copy of structured array with padding between fields removed. + + Parameters + ---------- + ary : ndarray + Structured array from which to remove padding bytes + + Returns + ------- + ary_copy : ndarray + Copy of ary with padding bytes removed + """ + dt = ary.dtype + copy_dtype = {'names': dt.names, + 'formats': [dt.fields[name][0] for name in dt.names]} + return array(ary, dtype=copy_dtype, copy=True) + +def _promote_fields(dt1, dt2): + """ Perform type promotion for two structured dtypes. + + Parameters + ---------- + dt1 : structured dtype + First dtype. + dt2 : structured dtype + Second dtype. + + Returns + ------- + out : dtype + The promoted dtype + + Notes + ----- + If one of the inputs is aligned, the result will be. The titles of + both descriptors must match (point to the same field). + """ + # Both must be structured and have the same names in the same order + if (dt1.names is None or dt2.names is None) or dt1.names != dt2.names: + raise DTypePromotionError( + f"field names `{dt1.names}` and `{dt2.names}` mismatch.") + + # if both are identical, we can (maybe!) just return the same dtype. + identical = dt1 is dt2 + new_fields = [] + for name in dt1.names: + field1 = dt1.fields[name] + field2 = dt2.fields[name] + new_descr = promote_types(field1[0], field2[0]) + identical = identical and new_descr is field1[0] + + # Check that the titles match (if given): + if field1[2:] != field2[2:]: + raise DTypePromotionError( + f"field titles of field '{name}' mismatch") + if len(field1) == 2: + new_fields.append((name, new_descr)) + else: + new_fields.append(((field1[2], name), new_descr)) + + res = dtype(new_fields, align=dt1.isalignedstruct or dt2.isalignedstruct) + + # Might as well preserve identity (and metadata) if the dtype is identical + # and the itemsize, offsets are also unmodified. This could probably be + # sped up, but also probably just be removed entirely. + if identical and res.itemsize == dt1.itemsize: + for name in dt1.names: + if dt1.fields[name][1] != res.fields[name][1]: + return res # the dtype changed. + return dt1 + + return res + + +def _getfield_is_safe(oldtype, newtype, offset): + """ Checks safety of getfield for object arrays. + + As in _view_is_safe, we need to check that memory containing objects is not + reinterpreted as a non-object datatype and vice versa. + + Parameters + ---------- + oldtype : data-type + Data type of the original ndarray. + newtype : data-type + Data type of the field being accessed by ndarray.getfield + offset : int + Offset of the field being accessed by ndarray.getfield + + Raises + ------ + TypeError + If the field access is invalid + + """ + if newtype.hasobject or oldtype.hasobject: + if offset == 0 and newtype == oldtype: + return + if oldtype.names is not None: + for name in oldtype.names: + if (oldtype.fields[name][1] == offset and + oldtype.fields[name][0] == newtype): + return + raise TypeError("Cannot get/set field of an object array") + return + +def _view_is_safe(oldtype, newtype): + """ Checks safety of a view involving object arrays, for example when + doing:: + + np.zeros(10, dtype=oldtype).view(newtype) + + Parameters + ---------- + oldtype : data-type + Data type of original ndarray + newtype : data-type + Data type of the view + + Raises + ------ + TypeError + If the new type is incompatible with the old type. + + """ + + # if the types are equivalent, there is no problem. + # for example: dtype((np.record, 'i4,i4')) == dtype((np.void, 'i4,i4')) + if oldtype == newtype: + return + + if newtype.hasobject or oldtype.hasobject: + raise TypeError("Cannot change data-type for array of references.") + return + + +# Given a string containing a PEP 3118 format specifier, +# construct a NumPy dtype + +_pep3118_native_map = { + '?': '?', + 'c': 'S1', + 'b': 'b', + 'B': 'B', + 'h': 'h', + 'H': 'H', + 'i': 'i', + 'I': 'I', + 'l': 'l', + 'L': 'L', + 'q': 'q', + 'Q': 'Q', + 'e': 'e', + 'f': 'f', + 'd': 'd', + 'g': 'g', + 'Zf': 'F', + 'Zd': 'D', + 'Zg': 'G', + 's': 'S', + 'w': 'U', + 'O': 'O', + 'x': 'V', # padding +} +_pep3118_native_typechars = ''.join(_pep3118_native_map.keys()) + +_pep3118_standard_map = { + '?': '?', + 'c': 'S1', + 'b': 'b', + 'B': 'B', + 'h': 'i2', + 'H': 'u2', + 'i': 'i4', + 'I': 'u4', + 'l': 'i4', + 'L': 'u4', + 'q': 'i8', + 'Q': 'u8', + 'e': 'f2', + 'f': 'f', + 'd': 'd', + 'Zf': 'F', + 'Zd': 'D', + 's': 'S', + 'w': 'U', + 'O': 'O', + 'x': 'V', # padding +} +_pep3118_standard_typechars = ''.join(_pep3118_standard_map.keys()) + +_pep3118_unsupported_map = { + 'u': 'UCS-2 strings', + '&': 'pointers', + 't': 'bitfields', + 'X': 'function pointers', +} + +class _Stream: + def __init__(self, s): + self.s = s + self.byteorder = '@' + + def advance(self, n): + res = self.s[:n] + self.s = self.s[n:] + return res + + def consume(self, c): + if self.s[:len(c)] == c: + self.advance(len(c)) + return True + return False + + def consume_until(self, c): + if callable(c): + i = 0 + while i < len(self.s) and not c(self.s[i]): + i = i + 1 + return self.advance(i) + else: + i = self.s.index(c) + res = self.advance(i) + self.advance(len(c)) + return res + + @property + def next(self): + return self.s[0] + + def __bool__(self): + return bool(self.s) + + +def _dtype_from_pep3118(spec): + stream = _Stream(spec) + dtype, align = __dtype_from_pep3118(stream, is_subdtype=False) + return dtype + +def __dtype_from_pep3118(stream, is_subdtype): + field_spec = { + 'names': [], + 'formats': [], + 'offsets': [], + 'itemsize': 0 + } + offset = 0 + common_alignment = 1 + is_padding = False + + # Parse spec + while stream: + value = None + + # End of structure, bail out to upper level + if stream.consume('}'): + break + + # Sub-arrays (1) + shape = None + if stream.consume('('): + shape = stream.consume_until(')') + shape = tuple(map(int, shape.split(','))) + + # Byte order + if stream.next in ('@', '=', '<', '>', '^', '!'): + byteorder = stream.advance(1) + if byteorder == '!': + byteorder = '>' + stream.byteorder = byteorder + + # Byte order characters also control native vs. standard type sizes + if stream.byteorder in ('@', '^'): + type_map = _pep3118_native_map + type_map_chars = _pep3118_native_typechars + else: + type_map = _pep3118_standard_map + type_map_chars = _pep3118_standard_typechars + + # Item sizes + itemsize_str = stream.consume_until(lambda c: not c.isdigit()) + if itemsize_str: + itemsize = int(itemsize_str) + else: + itemsize = 1 + + # Data types + is_padding = False + + if stream.consume('T{'): + value, align = __dtype_from_pep3118( + stream, is_subdtype=True) + elif stream.next in type_map_chars: + if stream.next == 'Z': + typechar = stream.advance(2) + else: + typechar = stream.advance(1) + + is_padding = (typechar == 'x') + dtypechar = type_map[typechar] + if dtypechar in 'USV': + dtypechar += '%d' % itemsize + itemsize = 1 + numpy_byteorder = {'@': '=', '^': '='}.get( + stream.byteorder, stream.byteorder) + value = dtype(numpy_byteorder + dtypechar) + align = value.alignment + elif stream.next in _pep3118_unsupported_map: + desc = _pep3118_unsupported_map[stream.next] + raise NotImplementedError( + f"Unrepresentable PEP 3118 data type {stream.next!r} ({desc})") + else: + raise ValueError( + f"Unknown PEP 3118 data type specifier {stream.s!r}" + ) + + # + # Native alignment may require padding + # + # Here we assume that the presence of a '@' character implicitly + # implies that the start of the array is *already* aligned. + # + extra_offset = 0 + if stream.byteorder == '@': + start_padding = (-offset) % align + intra_padding = (-value.itemsize) % align + + offset += start_padding + + if intra_padding != 0: + if itemsize > 1 or (shape is not None and _prod(shape) > 1): + # Inject internal padding to the end of the sub-item + value = _add_trailing_padding(value, intra_padding) + else: + # We can postpone the injection of internal padding, + # as the item appears at most once + extra_offset += intra_padding + + # Update common alignment + common_alignment = _lcm(align, common_alignment) + + # Convert itemsize to sub-array + if itemsize != 1: + value = dtype((value, (itemsize,))) + + # Sub-arrays (2) + if shape is not None: + value = dtype((value, shape)) + + # Field name + if stream.consume(':'): + name = stream.consume_until(':') + else: + name = None + + if not (is_padding and name is None): + if name is not None and name in field_spec['names']: + raise RuntimeError( + f"Duplicate field name '{name}' in PEP3118 format" + ) + field_spec['names'].append(name) + field_spec['formats'].append(value) + field_spec['offsets'].append(offset) + + offset += value.itemsize + offset += extra_offset + + field_spec['itemsize'] = offset + + # extra final padding for aligned types + if stream.byteorder == '@': + field_spec['itemsize'] += (-offset) % common_alignment + + # Check if this was a simple 1-item type, and unwrap it + if (field_spec['names'] == [None] + and field_spec['offsets'][0] == 0 + and field_spec['itemsize'] == field_spec['formats'][0].itemsize + and not is_subdtype): + ret = field_spec['formats'][0] + else: + _fix_names(field_spec) + ret = dtype(field_spec) + + # Finished + return ret, common_alignment + +def _fix_names(field_spec): + """ Replace names which are None with the next unused f%d name """ + names = field_spec['names'] + for i, name in enumerate(names): + if name is not None: + continue + + j = 0 + while True: + name = f'f{j}' + if name not in names: + break + j = j + 1 + names[i] = name + +def _add_trailing_padding(value, padding): + """Inject the specified number of padding bytes at the end of a dtype""" + if value.fields is None: + field_spec = { + 'names': ['f0'], + 'formats': [value], + 'offsets': [0], + 'itemsize': value.itemsize + } + else: + fields = value.fields + names = value.names + field_spec = { + 'names': names, + 'formats': [fields[name][0] for name in names], + 'offsets': [fields[name][1] for name in names], + 'itemsize': value.itemsize + } + + field_spec['itemsize'] += padding + return dtype(field_spec) + +def _prod(a): + p = 1 + for x in a: + p *= x + return p + +def _gcd(a, b): + """Calculate the greatest common divisor of a and b""" + if not (math.isfinite(a) and math.isfinite(b)): + raise ValueError('Can only find greatest common divisor of ' + f'finite arguments, found "{a}" and "{b}"') + while b: + a, b = b, a % b + return a + +def _lcm(a, b): + return a // _gcd(a, b) * b + +def array_ufunc_errmsg_formatter(dummy, ufunc, method, *inputs, **kwargs): + """ Format the error message for when __array_ufunc__ gives up. """ + args_string = ', '.join([f'{arg!r}' for arg in inputs] + + [f'{k}={v!r}' + for k, v in kwargs.items()]) + args = inputs + kwargs.get('out', ()) + types_string = ', '.join(repr(type(arg).__name__) for arg in args) + return ('operand type(s) all returned NotImplemented from ' + f'__array_ufunc__({ufunc!r}, {method!r}, {args_string}): {types_string}' + ) + + +def array_function_errmsg_formatter(public_api, types): + """ Format the error message for when __array_ufunc__ gives up. """ + func_name = f'{public_api.__module__}.{public_api.__name__}' + return (f"no implementation found for '{func_name}' on types that implement " + f'__array_function__: {list(types)}') + + +def _ufunc_doc_signature_formatter(ufunc): + """ + Builds a signature string which resembles PEP 457 + + This is used to construct the first line of the docstring + + Keep in sync with `_ufunc_inspect_signature_builder`. + """ + + # input arguments are simple + if ufunc.nin == 1: + in_args = 'x' + else: + in_args = ', '.join(f'x{i + 1}' for i in range(ufunc.nin)) + + # output arguments are both keyword or positional + if ufunc.nout == 0: + out_args = ', /, out=()' + elif ufunc.nout == 1: + out_args = ', /, out=None' + else: + out_args = '[, {positional}], / [, out={default}]'.format( + positional=', '.join( + f'out{i + 1}' for i in range(ufunc.nout)), + default=repr((None,) * ufunc.nout) + ) + + # keyword only args depend on whether this is a gufunc + kwargs = ( + ", casting='same_kind'" + ", order='K'" + ", dtype=None" + ", subok=True" + ) + + # NOTE: gufuncs may or may not support the `axis` parameter + if ufunc.signature is None: + kwargs = f", where=True{kwargs}[, signature]" + else: + kwargs += "[, signature, axes, axis]" + + # join all the parts together + return f'{ufunc.__name__}({in_args}{out_args}, *{kwargs})' + + +def _ufunc_inspect_signature_builder(ufunc): + """ + Builds a ``__signature__`` string. + + Should be kept in sync with `_ufunc_doc_signature_formatter`. + """ + + from inspect import Parameter, Signature + + params = [] + + # positional-only input parameters + if ufunc.nin == 1: + params.append(Parameter("x", Parameter.POSITIONAL_ONLY)) + else: + params.extend( + Parameter(f"x{i}", Parameter.POSITIONAL_ONLY) + for i in range(1, ufunc.nin + 1) + ) + + # for the sake of simplicity, we only consider a single output parameter + if ufunc.nout == 1: + out_default = None + else: + out_default = (None,) * ufunc.nout + params.append( + Parameter("out", Parameter.POSITIONAL_OR_KEYWORD, default=out_default), + ) + + if ufunc.signature is None: + params.append(Parameter("where", Parameter.KEYWORD_ONLY, default=True)) + else: + # NOTE: not all gufuncs support the `axis` parameters + params.append(Parameter("axes", Parameter.KEYWORD_ONLY, default=_NoValue)) + params.append(Parameter("axis", Parameter.KEYWORD_ONLY, default=_NoValue)) + params.append(Parameter("keepdims", Parameter.KEYWORD_ONLY, default=False)) + + params.extend(( + Parameter("casting", Parameter.KEYWORD_ONLY, default='same_kind'), + Parameter("order", Parameter.KEYWORD_ONLY, default='K'), + Parameter("dtype", Parameter.KEYWORD_ONLY, default=None), + Parameter("subok", Parameter.KEYWORD_ONLY, default=True), + Parameter("signature", Parameter.KEYWORD_ONLY, default=None), + )) + + return Signature(params) + + +def npy_ctypes_check(cls): + # determine if a class comes from ctypes, in order to work around + # a bug in the buffer protocol for those objects, bpo-10746 + try: + # ctypes class are new-style, so have an __mro__. This probably fails + # for ctypes classes with multiple inheritance. + if IS_PYPY: + # (..., _ctypes.basics._CData, Bufferable, object) + ctype_base = cls.__mro__[-3] + else: + # # (..., _ctypes._CData, object) + ctype_base = cls.__mro__[-2] + # right now, they're part of the _ctypes module + return '_ctypes' in ctype_base.__module__ + except Exception: + return False + +# used to handle the _NoValue default argument for na_object +# in the C implementation of the __reduce__ method for stringdtype +def _convert_to_stringdtype_kwargs(coerce, na_object=_NoValue): + if na_object is _NoValue: + return StringDType(coerce=coerce) + return StringDType(coerce=coerce, na_object=na_object) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_internal.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_internal.pyi new file mode 100644 index 0000000000000000000000000000000000000000..6e37022ffd56401e2b50595a476c56740cfa1a57 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_internal.pyi @@ -0,0 +1,61 @@ +import ctypes as ct +import re +from collections.abc import Callable, Iterable +from typing import Any, Final, Generic, Self, overload +from typing_extensions import TypeVar + +import numpy as np +import numpy.typing as npt +from numpy.ctypeslib import c_intp + +_CastT = TypeVar("_CastT", bound=ct._CanCastTo) +_T_co = TypeVar("_T_co", covariant=True) +_CT = TypeVar("_CT", bound=ct._CData) +_PT_co = TypeVar("_PT_co", bound=int | None, default=None, covariant=True) + +### + +IS_PYPY: Final[bool] = ... + +format_re: Final[re.Pattern[str]] = ... +sep_re: Final[re.Pattern[str]] = ... +space_re: Final[re.Pattern[str]] = ... + +### + +# TODO: Let the likes of `shape_as` and `strides_as` return `None` +# for 0D arrays once we've got shape-support + +class _ctypes(Generic[_PT_co]): + @overload + def __init__(self: _ctypes[None], /, array: npt.NDArray[Any], ptr: None = None) -> None: ... + @overload + def __init__(self, /, array: npt.NDArray[Any], ptr: _PT_co) -> None: ... + + # + @property + def data(self) -> _PT_co: ... + @property + def shape(self) -> ct.Array[c_intp]: ... + @property + def strides(self) -> ct.Array[c_intp]: ... + @property + def _as_parameter_(self) -> ct.c_void_p: ... + + # + def data_as(self, /, obj: type[_CastT]) -> _CastT: ... + def shape_as(self, /, obj: type[_CT]) -> ct.Array[_CT]: ... + def strides_as(self, /, obj: type[_CT]) -> ct.Array[_CT]: ... + +class dummy_ctype(Generic[_T_co]): + _cls: type[_T_co] + + def __init__(self, /, cls: type[_T_co]) -> None: ... + def __eq__(self, other: Self, /) -> bool: ... # type: ignore[override] # pyright: ignore[reportIncompatibleMethodOverride] + def __ne__(self, other: Self, /) -> bool: ... # type: ignore[override] # pyright: ignore[reportIncompatibleMethodOverride] + def __mul__(self, other: object, /) -> Self: ... + def __call__(self, /, *other: object) -> _T_co: ... + +def array_ufunc_errmsg_formatter(dummy: object, ufunc: np.ufunc, method: str, *inputs: object, **kwargs: object) -> str: ... +def array_function_errmsg_formatter(public_api: Callable[..., object], types: Iterable[str]) -> str: ... +def npy_ctypes_check(cls: type) -> bool: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_methods.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_methods.py new file mode 100644 index 0000000000000000000000000000000000000000..1c29831bca209e63dc7e06a2d0f83fa986fc3f98 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_methods.py @@ -0,0 +1,252 @@ +""" +Array methods which are called by both the C-code for the method +and the Python code for the NumPy-namespace function + +""" +import os +import pickle +import warnings +from contextlib import nullcontext + +import numpy as np +from numpy._core import multiarray as mu, numerictypes as nt, umath as um +from numpy._core.multiarray import asanyarray +from numpy._globals import _NoValue + +# save those O(100) nanoseconds! +bool_dt = mu.dtype("bool") +umr_maximum = um.maximum.reduce +umr_minimum = um.minimum.reduce +umr_sum = um.add.reduce +umr_prod = um.multiply.reduce +umr_bitwise_count = um.bitwise_count +umr_any = um.logical_or.reduce +umr_all = um.logical_and.reduce + +# Complex types to -> (2,)float view for fast-path computation in _var() +_complex_to_float = { + nt.dtype(nt.csingle): nt.dtype(nt.single), + nt.dtype(nt.cdouble): nt.dtype(nt.double), +} +# Special case for windows: ensure double takes precedence +if nt.dtype(nt.longdouble) != nt.dtype(nt.double): + _complex_to_float.update({ + nt.dtype(nt.clongdouble): nt.dtype(nt.longdouble), + }) + +# avoid keyword arguments to speed up parsing, saves about 15%-20% for very +# small reductions +def _amax(a, axis=None, out=None, keepdims=False, + initial=_NoValue, where=True): + return umr_maximum(a, axis, None, out, keepdims, initial, where) + +def _amin(a, axis=None, out=None, keepdims=False, + initial=_NoValue, where=True): + return umr_minimum(a, axis, None, out, keepdims, initial, where) + +def _sum(a, axis=None, dtype=None, out=None, keepdims=False, + initial=_NoValue, where=True): + return umr_sum(a, axis, dtype, out, keepdims, initial, where) + +def _prod(a, axis=None, dtype=None, out=None, keepdims=False, + initial=_NoValue, where=True): + return umr_prod(a, axis, dtype, out, keepdims, initial, where) + +def _any(a, axis=None, dtype=None, out=None, keepdims=False, *, where=True): + # By default, return a boolean for any and all + if dtype is None: + dtype = bool_dt + # Parsing keyword arguments is currently fairly slow, so avoid it for now + if where is True: + return umr_any(a, axis, dtype, out, keepdims) + return umr_any(a, axis, dtype, out, keepdims, where=where) + +def _all(a, axis=None, dtype=None, out=None, keepdims=False, *, where=True): + # By default, return a boolean for any and all + if dtype is None: + dtype = bool_dt + # Parsing keyword arguments is currently fairly slow, so avoid it for now + if where is True: + return umr_all(a, axis, dtype, out, keepdims) + return umr_all(a, axis, dtype, out, keepdims, where=where) + +def _count_reduce_items(arr, axis, keepdims=False, where=True): + # fast-path for the default case + if where is True: + # no boolean mask given, calculate items according to axis + if axis is None: + axis = tuple(range(arr.ndim)) + elif not isinstance(axis, tuple): + axis = (axis,) + items = 1 + for ax in axis: + items *= arr.shape[mu.normalize_axis_index(ax, arr.ndim)] + items = nt.intp(items) + else: + # TODO: Optimize case when `where` is broadcast along a non-reduction + # axis and full sum is more excessive than needed. + + # guarded to protect circular imports + from numpy.lib._stride_tricks_impl import broadcast_to + # count True values in (potentially broadcasted) boolean mask + items = umr_sum(broadcast_to(where, arr.shape), axis, nt.intp, None, + keepdims) + return items + +def _clip(a, min=None, max=None, out=None, **kwargs): + if a.dtype.kind in "iu": + # If min/max is a Python integer, deal with out-of-bound values here. + # (This enforces NEP 50 rules as no value based promotion is done.) + if type(min) is int and min <= np.iinfo(a.dtype).min: + min = None + if type(max) is int and max >= np.iinfo(a.dtype).max: + max = None + + if min is None and max is None: + # return identity + return um.positive(a, out=out, **kwargs) + elif min is None: + return um.minimum(a, max, out=out, **kwargs) + elif max is None: + return um.maximum(a, min, out=out, **kwargs) + else: + return um.clip(a, min, max, out=out, **kwargs) + +def _mean(a, axis=None, dtype=None, out=None, keepdims=False, *, where=True): + arr = asanyarray(a) + + is_float16_result = False + + rcount = _count_reduce_items(arr, axis, keepdims=keepdims, where=where) + if rcount == 0 if where is True else umr_any(rcount == 0, axis=None): + warnings.warn("Mean of empty slice", RuntimeWarning, stacklevel=2) + + # Cast bool, unsigned int, and int to float64 by default + if dtype is None: + if issubclass(arr.dtype.type, (nt.integer, nt.bool)): + dtype = mu.dtype('f8') + elif issubclass(arr.dtype.type, nt.float16): + dtype = mu.dtype('f4') + is_float16_result = True + + ret = umr_sum(arr, axis, dtype, out, keepdims, where=where) + if isinstance(ret, mu.ndarray): + ret = um.true_divide( + ret, rcount, out=ret, casting='unsafe', subok=False) + if is_float16_result and out is None: + ret = arr.dtype.type(ret) + elif hasattr(ret, 'dtype'): + if is_float16_result: + ret = arr.dtype.type(ret / rcount) + else: + ret = ret.dtype.type(ret / rcount) + else: + ret = ret / rcount + + return ret + +def _var(a, axis=None, dtype=None, out=None, ddof=0, keepdims=False, *, + where=True, mean=None): + arr = asanyarray(a) + + rcount = _count_reduce_items(arr, axis, keepdims=keepdims, where=where) + # Make this warning show up on top. + if ddof >= rcount if where is True else umr_any(ddof >= rcount, axis=None): + warnings.warn("Degrees of freedom <= 0 for slice", RuntimeWarning, + stacklevel=2) + + # Cast bool, unsigned int, and int to float64 by default + if dtype is None and issubclass(arr.dtype.type, (nt.integer, nt.bool)): + dtype = mu.dtype('f8') + + if mean is not None: + arrmean = mean + else: + # Compute the mean. + # Note that if dtype is not of inexact type then arraymean will + # not be either. + arrmean = umr_sum(arr, axis, dtype, keepdims=True, where=where) + # The shape of rcount has to match arrmean to not change the shape of + # out in broadcasting. Otherwise, it cannot be stored back to arrmean. + if rcount.ndim == 0: + # fast-path for default case when where is True + div = rcount + else: + # matching rcount to arrmean when where is specified as array + div = rcount.reshape(arrmean.shape) + if isinstance(arrmean, mu.ndarray): + arrmean = um.true_divide(arrmean, div, out=arrmean, + casting='unsafe', subok=False) + elif hasattr(arrmean, "dtype"): + arrmean = arrmean.dtype.type(arrmean / rcount) + else: + arrmean = arrmean / rcount + + # Compute sum of squared deviations from mean + # Note that x may not be inexact and that we need it to be an array, + # not a scalar. + x = um.subtract(arr, arrmean, out=...) + if issubclass(arr.dtype.type, (nt.floating, nt.integer)): + x = um.square(x, out=x) + # Fast-paths for built-in complex types + elif (_float_dtype := _complex_to_float.get(x.dtype)) is not None: + xv = x.view(dtype=(_float_dtype, (2,))) + um.square(xv, out=xv) + x = um.add(xv[..., 0], xv[..., 1], out=x.real) + # Most general case; includes handling object arrays containing imaginary + # numbers and complex types with non-native byteorder + else: + x = um.multiply(x, um.conjugate(x), out=x).real + + ret = umr_sum(x, axis, dtype, out, keepdims=keepdims, where=where) + + # Compute degrees of freedom and make sure it is not negative. + rcount = um.maximum(rcount - ddof, 0) + + # divide by degrees of freedom + if isinstance(ret, mu.ndarray): + ret = um.true_divide( + ret, rcount, out=ret, casting='unsafe', subok=False) + elif hasattr(ret, 'dtype'): + ret = ret.dtype.type(ret / rcount) + else: + ret = ret / rcount + + return ret + +def _std(a, axis=None, dtype=None, out=None, ddof=0, keepdims=False, *, + where=True, mean=None): + ret = _var(a, axis=axis, dtype=dtype, out=out, ddof=ddof, + keepdims=keepdims, where=where, mean=mean) + + if isinstance(ret, mu.ndarray): + ret = um.sqrt(ret, out=ret) + elif hasattr(ret, 'dtype'): + ret = ret.dtype.type(um.sqrt(ret)) + else: + ret = um.sqrt(ret) + + return ret + +def _ptp(a, axis=None, out=None, keepdims=False): + return um.subtract( + umr_maximum(a, axis, None, out, keepdims), + umr_minimum(a, axis, None, None, keepdims), + out + ) + +def _dump(self, file, protocol=2): + if hasattr(file, 'write'): + ctx = nullcontext(file) + else: + ctx = open(os.fspath(file), "wb") + with ctx as f: + pickle.dump(self, f, protocol=protocol) + +def _dumps(self, protocol=2): + return pickle.dumps(self, protocol=protocol) + +def _bitwise_count(a, out=None, *, where=True, casting='same_kind', + order='K', dtype=None, subok=True): + return umr_bitwise_count(a, out, where=where, casting=casting, + order=order, dtype=dtype, subok=subok) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_methods.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_methods.pyi new file mode 100644 index 0000000000000000000000000000000000000000..3c80683f003b8e63040804bbcadcce3c4e3a9444 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_methods.pyi @@ -0,0 +1,22 @@ +from collections.abc import Callable +from typing import Any, Concatenate, TypeAlias + +import numpy as np + +from . import _exceptions as _exceptions + +### + +_Reduce2: TypeAlias = Callable[Concatenate[object, ...], Any] + +### + +bool_dt: np.dtype[np.bool] = ... +umr_maximum: _Reduce2 = ... +umr_minimum: _Reduce2 = ... +umr_sum: _Reduce2 = ... +umr_prod: _Reduce2 = ... +umr_bitwise_count = np.bitwise_count +umr_any: _Reduce2 = ... +umr_all: _Reduce2 = ... +_complex_to_float: dict[np.dtype[np.complexfloating], np.dtype[np.floating]] = ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_multiarray_tests.cpython-312-darwin.so b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_multiarray_tests.cpython-312-darwin.so new file mode 100644 index 0000000000000000000000000000000000000000..58525d6f955dcd77e6ad7cd51ad1db56e8f38745 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_multiarray_tests.cpython-312-darwin.so @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:4958618c6fd3921fd8fb2443e46dcb6eea66de58ba0649e4e8f5467d0981bcde +size 120952 diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_multiarray_umath.cpython-312-darwin.so b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_multiarray_umath.cpython-312-darwin.so new file mode 100644 index 0000000000000000000000000000000000000000..ee996860deb12d10ef3096e9ef4cb64f003fe89d --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_multiarray_umath.cpython-312-darwin.so @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:a23983eeed82ff1b10d49f88649cccf3d62e5aa121091d7437af1945871575e6 +size 3678376 diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_operand_flag_tests.cpython-312-darwin.so 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0000000000000000000000000000000000000000..23bbc2bf1ec6b32af32f0047f7e933553a0590e4 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_simd.cpython-312-darwin.so @@ -0,0 +1,3 @@ +version https://git-lfs.github.com/spec/v1 +oid sha256:3178cd1f5ab8625fa8371bf48dbe54b4ed88896f9f70519c34ccaea970374197 +size 339592 diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_simd.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_simd.pyi new file mode 100644 index 0000000000000000000000000000000000000000..0ba7d78eeb87509322a0971f7d3eeeec8c8f3b6d --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_simd.pyi @@ -0,0 +1,35 @@ +from types import ModuleType +from typing import TypedDict, type_check_only + +# NOTE: these 5 are only defined on systems with an intel processor +SSE42: ModuleType | None = ... +FMA3: ModuleType | None = ... +AVX2: ModuleType | None = ... +AVX512F: ModuleType | None = ... +AVX512_SKX: ModuleType | None = ... + +# NOTE: these 2 are only defined on systems with an arm processor +ASIMD: ModuleType | None = ... +NEON: ModuleType | None = ... + +# NOTE: This is only defined on systems with an riscv64 processor. +RVV: ModuleType | None = ... + +baseline: ModuleType | None = ... + +@type_check_only +class SimdTargets(TypedDict): + SSE42: ModuleType | None + AVX2: ModuleType | None + FMA3: ModuleType | None + AVX512F: ModuleType | None + AVX512_SKX: ModuleType | None + ASIMD: ModuleType | None + NEON: ModuleType | None + RVV: ModuleType | None + baseline: ModuleType | None + +targets: SimdTargets = ... + +def clear_floatstatus() -> None: ... +def get_floatstatus() -> int: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_string_helpers.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_string_helpers.py new file mode 100644 index 0000000000000000000000000000000000000000..87085d4119dd56981f835dd97cc303fc04284da4 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_string_helpers.py @@ -0,0 +1,100 @@ +""" +String-handling utilities to avoid locale-dependence. + +Used primarily to generate type name aliases. +""" +# "import string" is costly to import! +# Construct the translation tables directly +# "A" = chr(65), "a" = chr(97) +_all_chars = tuple(map(chr, range(256))) +_ascii_upper = _all_chars[65:65 + 26] +_ascii_lower = _all_chars[97:97 + 26] +LOWER_TABLE = _all_chars[:65] + _ascii_lower + _all_chars[65 + 26:] +UPPER_TABLE = _all_chars[:97] + _ascii_upper + _all_chars[97 + 26:] + + +def english_lower(s): + """ Apply English case rules to convert ASCII strings to all lower case. + + This is an internal utility function to replace calls to str.lower() such + that we can avoid changing behavior with changing locales. In particular, + Turkish has distinct dotted and dotless variants of the Latin letter "I" in + both lowercase and uppercase. Thus, "I".lower() != "i" in a "tr" locale. + + Parameters + ---------- + s : str + + Returns + ------- + lowered : str + + Examples + -------- + >>> from numpy._core.numerictypes import english_lower + >>> english_lower('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_') + 'abcdefghijklmnopqrstuvwxyzabcdefghijklmnopqrstuvwxyz0123456789_' + >>> english_lower('') + '' + """ + lowered = s.translate(LOWER_TABLE) + return lowered + + +def english_upper(s): + """ Apply English case rules to convert ASCII strings to all upper case. + + This is an internal utility function to replace calls to str.upper() such + that we can avoid changing behavior with changing locales. In particular, + Turkish has distinct dotted and dotless variants of the Latin letter "I" in + both lowercase and uppercase. Thus, "i".upper() != "I" in a "tr" locale. + + Parameters + ---------- + s : str + + Returns + ------- + uppered : str + + Examples + -------- + >>> from numpy._core.numerictypes import english_upper + >>> english_upper('ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_') + 'ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_' + >>> english_upper('') + '' + """ + uppered = s.translate(UPPER_TABLE) + return uppered + + +def english_capitalize(s): + """ Apply English case rules to convert the first character of an ASCII + string to upper case. + + This is an internal utility function to replace calls to str.capitalize() + such that we can avoid changing behavior with changing locales. + + Parameters + ---------- + s : str + + Returns + ------- + capitalized : str + + Examples + -------- + >>> from numpy._core.numerictypes import english_capitalize + >>> english_capitalize('int8') + 'Int8' + >>> english_capitalize('Int8') + 'Int8' + >>> english_capitalize('') + '' + """ + if s: + return english_upper(s[0]) + s[1:] + else: + return s diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_string_helpers.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_string_helpers.pyi new file mode 100644 index 0000000000000000000000000000000000000000..6a85832b7a930edf28cf414e1f7801e6a3d94605 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_string_helpers.pyi @@ -0,0 +1,12 @@ +from typing import Final + +_all_chars: Final[tuple[str, ...]] = ... +_ascii_upper: Final[tuple[str, ...]] = ... +_ascii_lower: Final[tuple[str, ...]] = ... + +LOWER_TABLE: Final[tuple[str, ...]] = ... +UPPER_TABLE: Final[tuple[str, ...]] = ... + +def english_lower(s: str) -> str: ... +def english_upper(s: str) -> str: ... +def english_capitalize(s: str) -> str: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_struct_ufunc_tests.cpython-312-darwin.so b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_struct_ufunc_tests.cpython-312-darwin.so new file mode 100644 index 0000000000000000000000000000000000000000..3dcc56829864332aad38113eb1b74bcfaf454372 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_struct_ufunc_tests.cpython-312-darwin.so differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_type_aliases.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_type_aliases.py new file mode 100644 index 0000000000000000000000000000000000000000..51c8e6ca26779706ad414c5f78071e67c22a55a5 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_type_aliases.py @@ -0,0 +1,131 @@ +""" +Due to compatibility, numpy has a very large number of different naming +conventions for the scalar types (those subclassing from `numpy.generic`). +This file produces a convoluted set of dictionaries mapping names to types, +and sometimes other mappings too. + +.. data:: allTypes + A dictionary of names to types that will be exposed as attributes through + ``np._core.numerictypes.*`` + +.. data:: sctypeDict + Similar to `allTypes`, but maps a broader set of aliases to their types. + +.. data:: sctypes + A dictionary keyed by a "type group" string, providing a list of types + under that group. + +""" + +import numpy._core.multiarray as ma +from numpy._core.multiarray import dtype, typeinfo + +###################################### +# Building `sctypeDict` and `allTypes` +###################################### + +sctypeDict = {} +allTypes = {} +c_names_dict = {} + +_abstract_type_names = { + "generic", "integer", "inexact", "floating", "number", + "flexible", "character", "complexfloating", "unsignedinteger", + "signedinteger" +} + +for _abstract_type_name in _abstract_type_names: + allTypes[_abstract_type_name] = getattr(ma, _abstract_type_name) + del _abstract_type_name + +for k, v in typeinfo.items(): + if k.startswith("NPY_") and v not in c_names_dict: + c_names_dict[k[4:]] = v + else: + concrete_type = v.type + allTypes[k] = concrete_type + sctypeDict[k] = concrete_type + del concrete_type + del k, v + +_aliases = { + "double": "float64", + "cdouble": "complex128", + "single": "float32", + "csingle": "complex64", + "half": "float16", + "bool_": "bool", + # Default integer: + "int_": "intp", + "uint": "uintp", +} + +for k, v in _aliases.items(): + sctypeDict[k] = allTypes[v] + allTypes[k] = allTypes[v] + del k, v + +# extra aliases are added only to `sctypeDict` +# to support dtype name access, such as`np.dtype("float")` +_extra_aliases = { + "float": "float64", + "complex": "complex128", + "object": "object_", + "bytes": "bytes_", + "a": "bytes_", + "int": "int_", + "str": "str_", + "unicode": "str_", +} + +for k, v in _extra_aliases.items(): + sctypeDict[k] = allTypes[v] + del k, v + +# include extended precision sized aliases +for is_complex, full_name in [(False, "longdouble"), (True, "clongdouble")]: + longdouble_type = allTypes[full_name] + + bits = dtype(longdouble_type).itemsize * 8 + base_name = "complex" if is_complex else "float" + extended_prec_name = f"{base_name}{bits}" + if extended_prec_name not in allTypes: + sctypeDict[extended_prec_name] = longdouble_type + allTypes[extended_prec_name] = longdouble_type + + del is_complex, full_name, longdouble_type, bits, base_name, extended_prec_name + + +#################### +# Building `sctypes` +#################### + +sctypes = {"int": set(), "uint": set(), "float": set(), + "complex": set(), "others": set()} + +for type_info in typeinfo.values(): + if type_info.kind in ["M", "m"]: # exclude timedelta and datetime + continue + + concrete_type = type_info.type + + # find proper group for each concrete type + for type_group, abstract_type in [ + ("int", ma.signedinteger), ("uint", ma.unsignedinteger), + ("float", ma.floating), ("complex", ma.complexfloating), + ("others", ma.generic) + ]: + if issubclass(concrete_type, abstract_type): + sctypes[type_group].add(concrete_type) + del type_group, abstract_type + break + + del type_info, concrete_type + +# sort sctype groups by bitsize +for sctype_key in sctypes.keys(): + sctype_list = list(sctypes[sctype_key]) + sctype_list.sort(key=lambda x: dtype(x).itemsize) + sctypes[sctype_key] = sctype_list + + del sctype_key, sctype_list diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_type_aliases.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_type_aliases.pyi new file mode 100644 index 0000000000000000000000000000000000000000..e28541cc89875dc46294a6e6eb4df4c0f7dd8d63 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_type_aliases.pyi @@ -0,0 +1,86 @@ +from collections.abc import Collection +from typing import Final, Literal as L, TypeAlias, TypedDict, type_check_only + +import numpy as np + +sctypeDict: Final[dict[str, type[np.generic]]] +allTypes: Final[dict[str, type[np.generic]]] + +@type_check_only +class _CNamesDict(TypedDict): + BOOL: np.dtype[np.bool] + HALF: np.dtype[np.half] + FLOAT: np.dtype[np.single] + DOUBLE: np.dtype[np.double] + LONGDOUBLE: np.dtype[np.longdouble] + CFLOAT: np.dtype[np.csingle] + CDOUBLE: np.dtype[np.cdouble] + CLONGDOUBLE: np.dtype[np.clongdouble] + STRING: np.dtype[np.bytes_] + UNICODE: np.dtype[np.str_] + VOID: np.dtype[np.void] + OBJECT: np.dtype[np.object_] + DATETIME: np.dtype[np.datetime64] + TIMEDELTA: np.dtype[np.timedelta64] + BYTE: np.dtype[np.byte] + UBYTE: np.dtype[np.ubyte] + SHORT: np.dtype[np.short] + USHORT: np.dtype[np.ushort] + INT: np.dtype[np.intc] + UINT: np.dtype[np.uintc] + LONG: np.dtype[np.long] + ULONG: np.dtype[np.ulong] + LONGLONG: np.dtype[np.longlong] + ULONGLONG: np.dtype[np.ulonglong] + +c_names_dict: Final[_CNamesDict] + +_AbstractTypeName: TypeAlias = L[ + "generic", + "flexible", + "character", + "number", + "integer", + "inexact", + "unsignedinteger", + "signedinteger", + "floating", + "complexfloating", +] +_abstract_type_names: Final[set[_AbstractTypeName]] + +@type_check_only +class _AliasesType(TypedDict): + double: L["float64"] + cdouble: L["complex128"] + single: L["float32"] + csingle: L["complex64"] + half: L["float16"] + bool_: L["bool"] + int_: L["intp"] + uint: L["intp"] + +_aliases: Final[_AliasesType] + +@type_check_only +class _ExtraAliasesType(TypedDict): + float: L["float64"] + complex: L["complex128"] + object: L["object_"] + bytes: L["bytes_"] + a: L["bytes_"] + int: L["int_"] + str: L["str_"] + unicode: L["str_"] + +_extra_aliases: Final[_ExtraAliasesType] + +@type_check_only +class _SCTypes(TypedDict): + int: Collection[type[np.signedinteger]] + uint: Collection[type[np.unsignedinteger]] + float: Collection[type[np.floating]] + complex: Collection[type[np.complexfloating]] + others: Collection[type[np.flexible | np.bool | np.object_]] + +sctypes: Final[_SCTypes] diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_ufunc_config.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_ufunc_config.py new file mode 100644 index 0000000000000000000000000000000000000000..6a7476670d9511e0dbf0c9304b378f1064dfbbb0 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_ufunc_config.py @@ -0,0 +1,515 @@ +""" +Functions for changing global ufunc configuration + +This provides helpers which wrap `_get_extobj_dict` and `_make_extobj`, and +`_extobj_contextvar` from umath. +""" +import functools + +from numpy._utils import set_module + +from .umath import _extobj_contextvar, _get_extobj_dict, _make_extobj + +__all__ = [ + "seterr", "geterr", "setbufsize", "getbufsize", "seterrcall", "geterrcall", + "errstate" +] + + +@set_module('numpy') +def seterr(all=None, divide=None, over=None, under=None, invalid=None): + """ + Set how floating-point errors are handled. + + Note that operations on integer scalar types (such as `int16`) are + handled like floating point, and are affected by these settings. + + Parameters + ---------- + all : {'ignore', 'warn', 'raise', 'call', 'print', 'log'}, optional + Set treatment for all types of floating-point errors at once: + + - ignore: Take no action when the exception occurs. + - warn: Print a :exc:`RuntimeWarning` (via the Python `warnings` + module). + - raise: Raise a :exc:`FloatingPointError`. + - call: Call a function specified using the `seterrcall` function. + - print: Print a warning directly to ``stdout``. + - log: Record error in a Log object specified by `seterrcall`. + + The default is not to change the current behavior. + divide : {'ignore', 'warn', 'raise', 'call', 'print', 'log'}, optional + Treatment for division by zero. + over : {'ignore', 'warn', 'raise', 'call', 'print', 'log'}, optional + Treatment for floating-point overflow. + under : {'ignore', 'warn', 'raise', 'call', 'print', 'log'}, optional + Treatment for floating-point underflow. + invalid : {'ignore', 'warn', 'raise', 'call', 'print', 'log'}, optional + Treatment for invalid floating-point operation. + + Returns + ------- + old_settings : dict + Dictionary containing the old settings. + + See also + -------- + seterrcall : Set a callback function for the 'call' mode. + geterr, geterrcall, errstate + + + Notes + ----- + The floating-point exceptions are defined in the IEEE 754 standard [1]_: + + - Division by zero: infinite result obtained from finite numbers. + - Overflow: result too large to be expressed. + - Underflow: result so close to zero that some precision + was lost. + - Invalid operation: result is not an expressible number, typically + indicates that a NaN was produced. + + **Concurrency note:** see :ref:`fp_error_handling` + + .. [1] https://en.wikipedia.org/wiki/IEEE_754 + + Examples + -------- + >>> import numpy as np + >>> orig_settings = np.seterr(all='ignore') # seterr to known value + >>> np.int16(32000) * np.int16(3) + np.int16(30464) + >>> np.seterr(over='raise') + {'divide': 'ignore', 'over': 'ignore', 'under': 'ignore', 'invalid': 'ignore'} + >>> old_settings = np.seterr(all='warn', over='raise') + >>> np.int16(32000) * np.int16(3) + Traceback (most recent call last): + File "", line 1, in + FloatingPointError: overflow encountered in scalar multiply + + >>> old_settings = np.seterr(all='print') + >>> np.geterr() + {'divide': 'print', 'over': 'print', 'under': 'print', 'invalid': 'print'} + >>> np.int16(32000) * np.int16(3) + np.int16(30464) + >>> np.seterr(**orig_settings) # restore original + {'divide': 'print', 'over': 'print', 'under': 'print', 'invalid': 'print'} + + """ + + old = _get_extobj_dict() + # The errstate doesn't include call and bufsize, so pop them: + old.pop("call", None) + old.pop("bufsize", None) + + extobj = _make_extobj( + all=all, divide=divide, over=over, under=under, invalid=invalid) + _extobj_contextvar.set(extobj) + return old + + +@set_module('numpy') +def geterr(): + """ + Get the current way of handling floating-point errors. + + Returns + ------- + res : dict + A dictionary with keys "divide", "over", "under", and "invalid", + whose values are from the strings "ignore", "print", "log", "warn", + "raise", and "call". The keys represent possible floating-point + exceptions, and the values define how these exceptions are handled. + + See Also + -------- + geterrcall, seterr, seterrcall + + Notes + ----- + For complete documentation of the types of floating-point exceptions and + treatment options, see `seterr`. + + **Concurrency note:** see :doc:`/reference/routines.err` + + Examples + -------- + >>> import numpy as np + >>> np.geterr() + {'divide': 'warn', 'over': 'warn', 'under': 'ignore', 'invalid': 'warn'} + >>> np.arange(3.) / np.arange(3.) # doctest: +SKIP + array([nan, 1., 1.]) + RuntimeWarning: invalid value encountered in divide + + >>> oldsettings = np.seterr(all='warn', invalid='raise') + >>> np.geterr() + {'divide': 'warn', 'over': 'warn', 'under': 'warn', 'invalid': 'raise'} + >>> np.arange(3.) / np.arange(3.) + Traceback (most recent call last): + ... + FloatingPointError: invalid value encountered in divide + >>> oldsettings = np.seterr(**oldsettings) # restore original + + """ + res = _get_extobj_dict() + # The "geterr" doesn't include call and bufsize,: + res.pop("call", None) + res.pop("bufsize", None) + return res + + +@set_module('numpy') +def setbufsize(size): + """ + Set the size of the buffer used in ufuncs. + + .. versionchanged:: 2.0 + The scope of setting the buffer is tied to the `numpy.errstate` + context. Exiting a ``with errstate():`` will also restore the bufsize. + + Parameters + ---------- + size : int + Size of buffer. + + Returns + ------- + bufsize : int + Previous size of ufunc buffer in bytes. + + Notes + ----- + **Concurrency note:** see :doc:`/reference/routines.err` + + Examples + -------- + When exiting a `numpy.errstate` context manager the bufsize is restored: + + >>> import numpy as np + >>> with np.errstate(): + ... np.setbufsize(4096) + ... print(np.getbufsize()) + ... + 8192 + 4096 + >>> np.getbufsize() + 8192 + + """ + if size < 0: + raise ValueError("buffer size must be non-negative") + old = _get_extobj_dict()["bufsize"] + extobj = _make_extobj(bufsize=size) + _extobj_contextvar.set(extobj) + return old + + +@set_module('numpy') +def getbufsize(): + """ + Return the size of the buffer used in ufuncs. + + Returns + ------- + getbufsize : int + Size of ufunc buffer in bytes. + + Notes + ----- + + **Concurrency note:** see :doc:`/reference/routines.err` + + + Examples + -------- + >>> import numpy as np + >>> np.getbufsize() + 8192 + + """ + return _get_extobj_dict()["bufsize"] + + +@set_module('numpy') +def seterrcall(func): + """ + Set the floating-point error callback function or log object. + + There are two ways to capture floating-point error messages. The first + is to set the error-handler to 'call', using `seterr`. Then, set + the function to call using this function. + + The second is to set the error-handler to 'log', using `seterr`. + Floating-point errors then trigger a call to the 'write' method of + the provided object. + + Parameters + ---------- + func : callable f(err, flag) or object with write method + Function to call upon floating-point errors ('call'-mode) or + object whose 'write' method is used to log such message ('log'-mode). + + The call function takes two arguments. The first is a string describing + the type of error (such as "divide by zero", "overflow", "underflow", + or "invalid value"), and the second is the status flag. The flag is a + byte, whose four least-significant bits indicate the type of error, one + of "divide", "over", "under", "invalid":: + + [0 0 0 0 divide over under invalid] + + In other words, ``flags = divide + 2*over + 4*under + 8*invalid``. + + If an object is provided, its write method should take one argument, + a string. + + Returns + ------- + h : callable, log instance or None + The old error handler. + + See Also + -------- + seterr, geterr, geterrcall + + Notes + ----- + + **Concurrency note:** see :doc:`/reference/routines.err` + + Examples + -------- + Callback upon error: + + >>> def err_handler(type, flag): + ... print("Floating point error (%s), with flag %s" % (type, flag)) + ... + + >>> import numpy as np + + >>> orig_handler = np.seterrcall(err_handler) + >>> orig_err = np.seterr(all='call') + + >>> np.array([1, 2, 3]) / 0.0 + Floating point error (divide by zero), with flag 1 + array([inf, inf, inf]) + + >>> np.seterrcall(orig_handler) + + >>> np.seterr(**orig_err) + {'divide': 'call', 'over': 'call', 'under': 'call', 'invalid': 'call'} + + Log error message: + + >>> class Log: + ... def write(self, msg): + ... print("LOG: %s" % msg) + ... + + >>> log = Log() + >>> saved_handler = np.seterrcall(log) + >>> save_err = np.seterr(all='log') + + >>> np.array([1, 2, 3]) / 0.0 + LOG: Warning: divide by zero encountered in divide + array([inf, inf, inf]) + + >>> np.seterrcall(orig_handler) + + >>> np.seterr(**orig_err) + {'divide': 'log', 'over': 'log', 'under': 'log', 'invalid': 'log'} + + """ + old = _get_extobj_dict()["call"] + extobj = _make_extobj(call=func) + _extobj_contextvar.set(extobj) + return old + + +@set_module('numpy') +def geterrcall(): + """ + Return the current callback function used on floating-point errors. + + When the error handling for a floating-point error (one of "divide", + "over", "under", or "invalid") is set to 'call' or 'log', the function + that is called or the log instance that is written to is returned by + `geterrcall`. This function or log instance has been set with + `seterrcall`. + + Returns + ------- + errobj : callable, log instance or None + The current error handler. If no handler was set through `seterrcall`, + ``None`` is returned. + + See Also + -------- + seterrcall, seterr, geterr + + Notes + ----- + For complete documentation of the types of floating-point exceptions and + treatment options, see `seterr`. + + **Concurrency note:** see :ref:`fp_error_handling` + + Examples + -------- + >>> import numpy as np + >>> np.geterrcall() # we did not yet set a handler, returns None + + >>> orig_settings = np.seterr(all='call') + >>> def err_handler(type, flag): + ... print("Floating point error (%s), with flag %s" % (type, flag)) + >>> old_handler = np.seterrcall(err_handler) + >>> np.array([1, 2, 3]) / 0.0 + Floating point error (divide by zero), with flag 1 + array([inf, inf, inf]) + + >>> cur_handler = np.geterrcall() + >>> cur_handler is err_handler + True + >>> old_settings = np.seterr(**orig_settings) # restore original + >>> old_handler = np.seterrcall(None) # restore original + + """ + return _get_extobj_dict()["call"] + + +class _unspecified: + pass + + +_Unspecified = _unspecified() + + +@set_module('numpy') +class errstate: + """ + errstate(**kwargs) + + Context manager for floating-point error handling. + + Using an instance of `errstate` as a context manager allows statements in + that context to execute with a known error handling behavior. Upon entering + the context the error handling is set with `seterr` and `seterrcall`, and + upon exiting it is reset to what it was before. + + .. versionchanged:: 1.17.0 + `errstate` is also usable as a function decorator, saving + a level of indentation if an entire function is wrapped. + + .. versionchanged:: 2.0 + `errstate` is now fully thread and asyncio safe, but may not be + entered more than once. + It is not safe to decorate async functions using ``errstate``. + + Parameters + ---------- + kwargs : {divide, over, under, invalid} + Keyword arguments. The valid keywords are the possible floating-point + exceptions. Each keyword should have a string value that defines the + treatment for the particular error. Possible values are + {'ignore', 'warn', 'raise', 'call', 'print', 'log'}. + + See Also + -------- + seterr, geterr, seterrcall, geterrcall + + Notes + ----- + For complete documentation of the types of floating-point exceptions and + treatment options, see `seterr`. + + **Concurrency note:** see :ref:`fp_error_handling` + + Examples + -------- + >>> import numpy as np + >>> olderr = np.seterr(all='ignore') # Set error handling to known state. + + >>> np.arange(3) / 0. + array([nan, inf, inf]) + >>> with np.errstate(divide='ignore'): + ... np.arange(3) / 0. + array([nan, inf, inf]) + + >>> np.sqrt(-1) + np.float64(nan) + >>> with np.errstate(invalid='raise'): + ... np.sqrt(-1) + Traceback (most recent call last): + File "", line 2, in + FloatingPointError: invalid value encountered in sqrt + + Outside the context the error handling behavior has not changed: + + >>> np.geterr() + {'divide': 'ignore', 'over': 'ignore', 'under': 'ignore', 'invalid': 'ignore'} + >>> olderr = np.seterr(**olderr) # restore original state + + """ + __slots__ = ( + "_all", + "_call", + "_divide", + "_invalid", + "_over", + "_token", + "_under", + ) + + def __init__(self, *, call=_Unspecified, + all=None, divide=None, over=None, under=None, invalid=None): + self._token = None + self._call = call + self._all = all + self._divide = divide + self._over = over + self._under = under + self._invalid = invalid + + def __enter__(self): + # Note that __call__ duplicates much of this logic + if self._token is not None: + raise TypeError("Cannot enter `np.errstate` twice.") + if self._call is _Unspecified: + extobj = _make_extobj( + all=self._all, divide=self._divide, over=self._over, + under=self._under, invalid=self._invalid) + else: + extobj = _make_extobj( + call=self._call, + all=self._all, divide=self._divide, over=self._over, + under=self._under, invalid=self._invalid) + + self._token = _extobj_contextvar.set(extobj) + + def __exit__(self, *exc_info): + _extobj_contextvar.reset(self._token) + + def __call__(self, func): + # We need to customize `__call__` compared to `ContextDecorator` + # because we must store the token per-thread so cannot store it on + # the instance (we could create a new instance for this). + # This duplicates the code from `__enter__`. + @functools.wraps(func) + def inner(*args, **kwargs): + if self._call is _Unspecified: + extobj = _make_extobj( + all=self._all, divide=self._divide, over=self._over, + under=self._under, invalid=self._invalid) + else: + extobj = _make_extobj( + call=self._call, + all=self._all, divide=self._divide, over=self._over, + under=self._under, invalid=self._invalid) + + _token = _extobj_contextvar.set(extobj) + try: + # Call the original, decorated, function: + return func(*args, **kwargs) + finally: + _extobj_contextvar.reset(_token) + + return inner diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_ufunc_config.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_ufunc_config.pyi new file mode 100644 index 0000000000000000000000000000000000000000..f1f0d88fe1658a232660cd268226894d333f8786 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_ufunc_config.pyi @@ -0,0 +1,69 @@ +from _typeshed import SupportsWrite +from collections.abc import Callable +from types import TracebackType +from typing import Any, Final, Literal, TypeAlias, TypedDict, TypeVar, type_check_only + +__all__ = [ + "seterr", + "geterr", + "setbufsize", + "getbufsize", + "seterrcall", + "geterrcall", + "errstate", +] + +_ErrKind: TypeAlias = Literal["ignore", "warn", "raise", "call", "print", "log"] +_ErrCall: TypeAlias = Callable[[str, int], Any] | SupportsWrite[str] + +_CallableT = TypeVar("_CallableT", bound=Callable[..., object]) + +@type_check_only +class _ErrDict(TypedDict): + divide: _ErrKind + over: _ErrKind + under: _ErrKind + invalid: _ErrKind + +### + +class _unspecified: ... + +_Unspecified: Final[_unspecified] + +class errstate: + __slots__ = "_all", "_call", "_divide", "_invalid", "_over", "_token", "_under" + + def __init__( + self, + /, + *, + call: _ErrCall | _unspecified = ..., # = _Unspecified + all: _ErrKind | None = None, + divide: _ErrKind | None = None, + over: _ErrKind | None = None, + under: _ErrKind | None = None, + invalid: _ErrKind | None = None, + ) -> None: ... + def __call__(self, /, func: _CallableT) -> _CallableT: ... + def __enter__(self) -> None: ... + def __exit__( + self, + exc_type: type[BaseException] | None, + exc_value: BaseException | None, + traceback: TracebackType | None, + /, + ) -> None: ... + +def seterr( + all: _ErrKind | None = None, + divide: _ErrKind | None = None, + over: _ErrKind | None = None, + under: _ErrKind | None = None, + invalid: _ErrKind | None = None, +) -> _ErrDict: ... +def geterr() -> _ErrDict: ... +def setbufsize(size: int) -> int: ... +def getbufsize() -> int: ... +def seterrcall(func: _ErrCall | None) -> _ErrCall | None: ... +def geterrcall() -> _ErrCall | None: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_umath_tests.cpython-312-darwin.so b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_umath_tests.cpython-312-darwin.so new file mode 100644 index 0000000000000000000000000000000000000000..f97440bf41a024d45c703e8b6c8bedb39c30e8ce Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_umath_tests.cpython-312-darwin.so differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_umath_tests.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_umath_tests.pyi new file mode 100644 index 0000000000000000000000000000000000000000..696cec3b755e03bfac98fb55db8e223bfbd9f390 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/_umath_tests.pyi @@ -0,0 +1,47 @@ +# undocumented internal testing module for ufunc features, defined in +# numpy/_core/src/umath/_umath_tests.c.src + +from typing import Final, Literal as L, TypedDict, type_check_only + +import numpy as np +from numpy._typing import _GUFunc_Nin2_Nout1, _UFunc_Nin1_Nout1, _UFunc_Nin2_Nout1 + +@type_check_only +class _TestDispatchResult(TypedDict): + func: str # e.g. 'func_AVX2' + var: str # e.g. 'var_AVX2' + func_xb: str # e.g. 'func_AVX2' + var_xb: str # e.g. 'var_AVX2' + all: list[str] # e.g. ['func_AVX2', 'func_SSE41', 'func'] + +### + +# undocumented +def test_signature( + nin: int, nout: int, signature: str, / +) -> tuple[ + L[0, 1], # core_enabled (0 for scalar ufunc; 1 for generalized ufunc) + tuple[int, ...] | None, # core_num_dims + tuple[int, ...] | None, # core_dim_ixs + tuple[int, ...] | None, # core_dim_flags + tuple[int, ...] | None, # core_dim_sizes +]: ... + +# undocumented +def test_dispatch() -> _TestDispatchResult: ... + +# undocumented ufuncs and gufuncs +always_error: Final[_UFunc_Nin2_Nout1[L["always_error"], L[1], None]] = ... +always_error_unary: Final[_UFunc_Nin1_Nout1[L["always_error_unary"], L[1], None]] = ... +always_error_gufunc: Final[_GUFunc_Nin2_Nout1[L["always_error_gufunc"], L[1], None, L["(i),()->()"]]] = ... +inner1d: Final[_GUFunc_Nin2_Nout1[L["inner1d"], L[2], None, L["(i),(i)->()"]]] = ... +innerwt: Final[np.ufunc] = ... # we have no specialized type for 3->1 gufuncs +matrix_multiply: Final[_GUFunc_Nin2_Nout1[L["matrix_multiply"], L[3], None, L["(m,n),(n,p)->(m,p)"]]] = ... +matmul: Final[_GUFunc_Nin2_Nout1[L["matmul"], L[3], None, L["(m?,n),(n,p?)->(m?,p?)"]]] = ... +euclidean_pdist: Final[_GUFunc_Nin2_Nout1[L["euclidean_pdist"], L[2], None, L["(n,d)->(p)"]]] = ... +cumsum: Final[np.ufunc] = ... # we have no specialized type for 1->1 gufuncs +inner1d_no_doc: Final[_GUFunc_Nin2_Nout1[L["inner1d_no_doc"], L[2], None, L["(i),(i)->()"]]] = ... +cross1d: Final[_GUFunc_Nin2_Nout1[L["cross1d"], L[2], None, L["(3),(3)->(3)"]]] = ... +_pickleable_module_global_ufunc: Final[np.ufunc] = ... # 0->0 ufunc; segfaults if called +indexed_negative: Final[_UFunc_Nin1_Nout1[L["indexed_negative"], L[0], L[0]]] = ... # ntypes=0; can't be called +conv1d_full: Final[_GUFunc_Nin2_Nout1[L["conv1d_full"], L[1], None, L["(m),(n)->(p)"]]] = ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/arrayprint.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/arrayprint.py new file mode 100644 index 0000000000000000000000000000000000000000..96c17285bb3d7f7658689116c66293c954281498 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/arrayprint.py @@ -0,0 +1,1779 @@ +"""Array printing function + +$Id: arrayprint.py,v 1.9 2005/09/13 13:58:44 teoliphant Exp $ + +""" +__all__ = ["array2string", "array_str", "array_repr", + "set_printoptions", "get_printoptions", "printoptions", + "format_float_positional", "format_float_scientific"] +__docformat__ = 'restructuredtext' + +# +# Written by Konrad Hinsen +# last revision: 1996-3-13 +# modified by Jim Hugunin 1997-3-3 for repr's and str's (and other details) +# and by Perry Greenfield 2000-4-1 for numarray +# and by Travis Oliphant 2005-8-22 for numpy + + +# Note: Both scalartypes.c.src and arrayprint.py implement strs for numpy +# scalars but for different purposes. scalartypes.c.src has str/reprs for when +# the scalar is printed on its own, while arrayprint.py has strs for when +# scalars are printed inside an ndarray. Only the latter strs are currently +# user-customizable. + +import functools +import numbers +import sys + +try: + from _thread import get_ident +except ImportError: + from _dummy_thread import get_ident + +import contextlib +import operator +import warnings + +import numpy as np + +from . import numerictypes as _nt +from .fromnumeric import any +from .multiarray import ( + array, + datetime_as_string, + datetime_data, + dragon4_positional, + dragon4_scientific, + ndarray, +) +from .numeric import asarray, concatenate, errstate +from .numerictypes import complex128, flexible, float64, int_ +from .overrides import array_function_dispatch, set_module +from .printoptions import format_options +from .umath import absolute, isfinite, isinf, isnat + + +def _make_options_dict(precision=None, threshold=None, edgeitems=None, + linewidth=None, suppress=None, nanstr=None, infstr=None, + sign=None, formatter=None, floatmode=None, legacy=None, + override_repr=None): + """ + Make a dictionary out of the non-None arguments, plus conversion of + *legacy* and sanity checks. + """ + + options = {k: v for k, v in list(locals().items()) if v is not None} + + if suppress is not None: + options['suppress'] = bool(suppress) + + modes = ['fixed', 'unique', 'maxprec', 'maxprec_equal'] + if floatmode not in modes + [None]: + raise ValueError("floatmode option must be one of " + + ", ".join(f'"{m}"' for m in modes)) + + if sign not in [None, '-', '+', ' ']: + raise ValueError("sign option must be one of ' ', '+', or '-'") + + if legacy is False: + options['legacy'] = sys.maxsize + elif legacy == False: # noqa: E712 + warnings.warn( + f"Passing `legacy={legacy!r}` is deprecated.", + FutureWarning, stacklevel=3 + ) + options['legacy'] = sys.maxsize + elif legacy == '1.13': + options['legacy'] = 113 + elif legacy == '1.21': + options['legacy'] = 121 + elif legacy == '1.25': + options['legacy'] = 125 + elif legacy == '2.1': + options['legacy'] = 201 + elif legacy == '2.2': + options['legacy'] = 202 + elif legacy is None: + pass # OK, do nothing. + else: + warnings.warn( + "legacy printing option can currently only be '1.13', '1.21', " + "'1.25', '2.1', '2.2' or `False`", stacklevel=3) + + if threshold is not None: + # forbid the bad threshold arg suggested by stack overflow, gh-12351 + if not isinstance(threshold, numbers.Number): + raise TypeError("threshold must be numeric") + if np.isnan(threshold): + raise ValueError("threshold must be non-NAN, try " + "sys.maxsize for untruncated representation") + + if precision is not None: + # forbid the bad precision arg as suggested by issue #18254 + try: + options['precision'] = operator.index(precision) + except TypeError as e: + raise TypeError('precision must be an integer') from e + + return options + + +@set_module('numpy') +def set_printoptions(precision=None, threshold=None, edgeitems=None, + linewidth=None, suppress=None, nanstr=None, + infstr=None, formatter=None, sign=None, floatmode=None, + *, legacy=None, override_repr=None): + """ + Set printing options. + + These options determine the way floating point numbers, arrays and + other NumPy objects are displayed. + + Parameters + ---------- + precision : int or None, optional + Number of digits of precision for floating point output (default 8). + May be None if `floatmode` is not `fixed`, to print as many digits as + necessary to uniquely specify the value. + threshold : int, optional + Total number of array elements which trigger summarization + rather than full repr (default 1000). + To always use the full repr without summarization, pass `sys.maxsize`. + edgeitems : int, optional + Number of array items in summary at beginning and end of + each dimension (default 3). + linewidth : int, optional + The number of characters per line for the purpose of inserting + line breaks (default 75). + suppress : bool, optional + If True, always print floating point numbers using fixed point + notation, in which case numbers equal to zero in the current precision + will print as zero. If False, then scientific notation is used when + absolute value of the smallest number is < 1e-4 or the ratio of the + maximum absolute value to the minimum is > 1e3. The default is False. + nanstr : str, optional + String representation of floating point not-a-number (default nan). + infstr : str, optional + String representation of floating point infinity (default inf). + sign : string, either '-', '+', or ' ', optional + Controls printing of the sign of floating-point types. If '+', always + print the sign of positive values. If ' ', always prints a space + (whitespace character) in the sign position of positive values. If + '-', omit the sign character of positive values. (default '-') + + .. versionchanged:: 2.0 + The sign parameter can now be an integer type, previously + types were floating-point types. + + formatter : dict of callables, optional + If not None, the keys should indicate the type(s) that the respective + formatting function applies to. Callables should return a string. + Types that are not specified (by their corresponding keys) are handled + by the default formatters. Individual types for which a formatter + can be set are: + + - 'bool' + - 'int' + - 'timedelta' : a `numpy.timedelta64` + - 'datetime' : a `numpy.datetime64` + - 'float' + - 'longfloat' : 128-bit floats + - 'complexfloat' + - 'longcomplexfloat' : composed of two 128-bit floats + - 'numpystr' : types `numpy.bytes_` and `numpy.str_` + - 'object' : `np.object_` arrays + + Other keys that can be used to set a group of types at once are: + + - 'all' : sets all types + - 'int_kind' : sets 'int' + - 'float_kind' : sets 'float' and 'longfloat' + - 'complex_kind' : sets 'complexfloat' and 'longcomplexfloat' + - 'str_kind' : sets 'numpystr' + floatmode : str, optional + Controls the interpretation of the `precision` option for + floating-point types. Can take the following values + (default maxprec_equal): + + * 'fixed': Always print exactly `precision` fractional digits, + even if this would print more or fewer digits than + necessary to specify the value uniquely. + * 'unique': Print the minimum number of fractional digits necessary + to represent each value uniquely. Different elements may + have a different number of digits. The value of the + `precision` option is ignored. + * 'maxprec': Print at most `precision` fractional digits, but if + an element can be uniquely represented with fewer digits + only print it with that many. + * 'maxprec_equal': Print at most `precision` fractional digits, + but if every element in the array can be uniquely + represented with an equal number of fewer digits, use that + many digits for all elements. + legacy : string or `False`, optional + If set to the string ``'1.13'`` enables 1.13 legacy printing mode. This + approximates numpy 1.13 print output by including a space in the sign + position of floats and different behavior for 0d arrays. This also + enables 1.21 legacy printing mode (described below). + + If set to the string ``'1.21'`` enables 1.21 legacy printing mode. This + approximates numpy 1.21 print output of complex structured dtypes + by not inserting spaces after commas that separate fields and after + colons. + + If set to ``'1.25'`` approximates printing of 1.25 which mainly means + that numeric scalars are printed without their type information, e.g. + as ``3.0`` rather than ``np.float64(3.0)``. + + If set to ``'2.1'``, shape information is not given when arrays are + summarized (i.e., multiple elements replaced with ``...``). + + If set to ``'2.2'``, the transition to use scientific notation for + printing ``np.float16`` and ``np.float32`` types may happen later or + not at all for larger values. + + If set to `False`, disables legacy mode. + + Unrecognized strings will be ignored with a warning for forward + compatibility. + + .. versionchanged:: 1.22.0 + .. versionchanged:: 2.2 + + override_repr: callable, optional + If set a passed function will be used for generating arrays' repr. + Other options will be ignored. + + See Also + -------- + get_printoptions, printoptions, array2string + + + Notes + ----- + + * ``formatter`` is always reset with a call to `set_printoptions`. + * Use `printoptions` as a context manager to set the values temporarily. + * These print options apply only to NumPy ndarrays, not to scalars. + + **Concurrency note:** see :ref:`text_formatting_options` + + Examples + -------- + Floating point precision can be set: + + >>> import numpy as np + >>> np.set_printoptions(precision=4) + >>> np.array([1.123456789]) + [1.1235] + + Long arrays can be summarised: + + >>> np.set_printoptions(threshold=5) + >>> np.arange(10) + array([0, 1, 2, ..., 7, 8, 9], shape=(10,)) + + Small results can be suppressed: + + >>> eps = np.finfo(float).eps + >>> x = np.arange(4.) + >>> x**2 - (x + eps)**2 + array([-4.9304e-32, -4.4409e-16, 0.0000e+00, 0.0000e+00]) + >>> np.set_printoptions(suppress=True) + >>> x**2 - (x + eps)**2 + array([-0., -0., 0., 0.]) + + A custom formatter can be used to display array elements as desired: + + >>> np.set_printoptions(formatter={'all':lambda x: 'int: '+str(-x)}) + >>> x = np.arange(3) + >>> x + array([int: 0, int: -1, int: -2]) + >>> np.set_printoptions() # formatter gets reset + >>> x + array([0, 1, 2]) + + To put back the default options, you can use: + + >>> np.set_printoptions(edgeitems=3, infstr='inf', + ... linewidth=75, nanstr='nan', precision=8, + ... suppress=False, threshold=1000, formatter=None) + + Also to temporarily override options, use `printoptions` + as a context manager: + + >>> with np.printoptions(precision=2, suppress=True, threshold=5): + ... np.linspace(0, 10, 10) + array([ 0. , 1.11, 2.22, ..., 7.78, 8.89, 10. ], shape=(10,)) + + """ + _set_printoptions(precision, threshold, edgeitems, linewidth, suppress, + nanstr, infstr, formatter, sign, floatmode, + legacy=legacy, override_repr=override_repr) + + +def _set_printoptions(precision=None, threshold=None, edgeitems=None, + linewidth=None, suppress=None, nanstr=None, + infstr=None, formatter=None, sign=None, floatmode=None, + *, legacy=None, override_repr=None): + new_opt = _make_options_dict(precision, threshold, edgeitems, linewidth, + suppress, nanstr, infstr, sign, formatter, + floatmode, legacy) + # formatter and override_repr are always reset + new_opt['formatter'] = formatter + new_opt['override_repr'] = override_repr + + updated_opt = format_options.get() | new_opt + updated_opt.update(new_opt) + + if updated_opt['legacy'] == 113: + updated_opt['sign'] = '-' + + return format_options.set(updated_opt) + + +@set_module('numpy') +def get_printoptions(): + """ + Return the current print options. + + Returns + ------- + print_opts : dict + Dictionary of current print options with keys + + - precision : int + - threshold : int + - edgeitems : int + - linewidth : int + - suppress : bool + - nanstr : str + - infstr : str + - sign : str + - formatter : dict of callables + - floatmode : str + - legacy : str or False + + For a full description of these options, see `set_printoptions`. + + Notes + ----- + These print options apply only to NumPy ndarrays, not to scalars. + + **Concurrency note:** see :ref:`text_formatting_options` + + See Also + -------- + set_printoptions, printoptions + + Examples + -------- + >>> import numpy as np + + >>> np.get_printoptions() + {'edgeitems': 3, 'threshold': 1000, ..., 'override_repr': None} + + >>> np.get_printoptions()['linewidth'] + 75 + >>> np.set_printoptions(linewidth=100) + >>> np.get_printoptions()['linewidth'] + 100 + + """ + opts = format_options.get().copy() + opts['legacy'] = { + 113: '1.13', 121: '1.21', 125: '1.25', 201: '2.1', + 202: '2.2', sys.maxsize: False, + }[opts['legacy']] + return opts + + +def _get_legacy_print_mode(): + """Return the legacy print mode as an int.""" + return format_options.get()['legacy'] + + +@set_module('numpy') +@contextlib.contextmanager +def printoptions(*args, **kwargs): + """Context manager for setting print options. + + Set print options for the scope of the `with` block, and restore the old + options at the end. See `set_printoptions` for the full description of + available options. + + Examples + -------- + >>> import numpy as np + + >>> from numpy.testing import assert_equal + >>> with np.printoptions(precision=2): + ... np.array([2.0]) / 3 + array([0.67]) + + The `as`-clause of the `with`-statement gives the current print options: + + >>> with np.printoptions(precision=2) as opts: + ... assert_equal(opts, np.get_printoptions()) + + See Also + -------- + set_printoptions, get_printoptions + + Notes + ----- + These print options apply only to NumPy ndarrays, not to scalars. + + **Concurrency note:** see :ref:`text_formatting_options` + + """ + token = _set_printoptions(*args, **kwargs) + + try: + yield get_printoptions() + finally: + format_options.reset(token) + + +def _leading_trailing(a, edgeitems, index=()): + """ + Keep only the N-D corners (leading and trailing edges) of an array. + + Should be passed a base-class ndarray, since it makes no guarantees about + preserving subclasses. + """ + axis = len(index) + if axis == a.ndim: + return a[index] + + if a.shape[axis] > 2 * edgeitems: + return concatenate(( + _leading_trailing(a, edgeitems, index + np.index_exp[:edgeitems]), + _leading_trailing(a, edgeitems, index + np.index_exp[-edgeitems:]) + ), axis=axis) + else: + return _leading_trailing(a, edgeitems, index + np.index_exp[:]) + + +def _object_format(o): + """ Object arrays containing lists should be printed unambiguously """ + if type(o) is list: + fmt = 'list({!r})' + else: + fmt = '{!r}' + return fmt.format(o) + +def repr_format(x): + if isinstance(x, (np.str_, np.bytes_)): + return repr(x.item()) + return repr(x) + +def str_format(x): + if isinstance(x, (np.str_, np.bytes_)): + return str(x.item()) + return str(x) + +def _get_formatdict(data, *, precision, floatmode, suppress, sign, legacy, + formatter, **kwargs): + # note: extra arguments in kwargs are ignored + + # wrapped in lambdas to avoid taking a code path + # with the wrong type of data + formatdict = { + 'bool': lambda: BoolFormat(data), + 'int': lambda: IntegerFormat(data, sign), + 'float': lambda: FloatingFormat( + data, precision, floatmode, suppress, sign, legacy=legacy), + 'longfloat': lambda: FloatingFormat( + data, precision, floatmode, suppress, sign, legacy=legacy), + 'complexfloat': lambda: ComplexFloatingFormat( + data, precision, floatmode, suppress, sign, legacy=legacy), + 'longcomplexfloat': lambda: ComplexFloatingFormat( + data, precision, floatmode, suppress, sign, legacy=legacy), + 'datetime': lambda: DatetimeFormat(data, legacy=legacy), + 'timedelta': lambda: TimedeltaFormat(data), + 'object': lambda: _object_format, + 'void': lambda: str_format, + 'numpystr': lambda: repr_format} + + # we need to wrap values in `formatter` in a lambda, so that the interface + # is the same as the above values. + def indirect(x): + return lambda: x + + if formatter is not None: + fkeys = [k for k in formatter.keys() if formatter[k] is not None] + if 'all' in fkeys: + for key in formatdict.keys(): + formatdict[key] = indirect(formatter['all']) + if 'int_kind' in fkeys: + for key in ['int']: + formatdict[key] = indirect(formatter['int_kind']) + if 'float_kind' in fkeys: + for key in ['float', 'longfloat']: + formatdict[key] = indirect(formatter['float_kind']) + if 'complex_kind' in fkeys: + for key in ['complexfloat', 'longcomplexfloat']: + formatdict[key] = indirect(formatter['complex_kind']) + if 'str_kind' in fkeys: + formatdict['numpystr'] = indirect(formatter['str_kind']) + for key in formatdict.keys(): + if key in fkeys: + formatdict[key] = indirect(formatter[key]) + + return formatdict + +def _get_format_function(data, **options): + """ + find the right formatting function for the dtype_ + """ + dtype_ = data.dtype + dtypeobj = dtype_.type + formatdict = _get_formatdict(data, **options) + if dtypeobj is None: + return formatdict["numpystr"]() + elif issubclass(dtypeobj, _nt.bool): + return formatdict['bool']() + elif issubclass(dtypeobj, _nt.integer): + if issubclass(dtypeobj, _nt.timedelta64): + return formatdict['timedelta']() + else: + return formatdict['int']() + elif issubclass(dtypeobj, _nt.floating): + if issubclass(dtypeobj, _nt.longdouble): + return formatdict['longfloat']() + else: + return formatdict['float']() + elif issubclass(dtypeobj, _nt.complexfloating): + if issubclass(dtypeobj, _nt.clongdouble): + return formatdict['longcomplexfloat']() + else: + return formatdict['complexfloat']() + elif issubclass(dtypeobj, (_nt.str_, _nt.bytes_)): + return formatdict['numpystr']() + elif issubclass(dtypeobj, _nt.datetime64): + return formatdict['datetime']() + elif issubclass(dtypeobj, _nt.object_): + return formatdict['object']() + elif issubclass(dtypeobj, _nt.void): + if dtype_.names is not None: + return StructuredVoidFormat.from_data(data, **options) + else: + return formatdict['void']() + else: + return formatdict['numpystr']() + + +def _recursive_guard(fillvalue='...'): + """ + Like the python 3.2 reprlib.recursive_repr, but forwards *args and **kwargs + + Decorates a function such that if it calls itself with the same first + argument, it returns `fillvalue` instead of recursing. + + Largely copied from reprlib.recursive_repr + """ + + def decorating_function(f): + repr_running = set() + + @functools.wraps(f) + def wrapper(self, *args, **kwargs): + key = id(self), get_ident() + if key in repr_running: + return fillvalue + repr_running.add(key) + try: + return f(self, *args, **kwargs) + finally: + repr_running.discard(key) + + return wrapper + + return decorating_function + + +# gracefully handle recursive calls, when object arrays contain themselves +@_recursive_guard() +def _array2string(a, options, separator=' ', prefix=""): + # The formatter __init__s in _get_format_function cannot deal with + # subclasses yet, and we also need to avoid recursion issues in + # _formatArray with subclasses which return 0d arrays in place of scalars + data = asarray(a) + if a.shape == (): + a = data + + if a.size > options['threshold']: + summary_insert = "..." + data = _leading_trailing(data, options['edgeitems']) + else: + summary_insert = "" + + # find the right formatting function for the array + format_function = _get_format_function(data, **options) + + # skip over "[" + next_line_prefix = " " + # skip over array( + next_line_prefix += " " * len(prefix) + + lst = _formatArray(a, format_function, options['linewidth'], + next_line_prefix, separator, options['edgeitems'], + summary_insert, options['legacy']) + return lst + + +def _array2string_dispatcher( + a, max_line_width=None, precision=None, + suppress_small=None, separator=None, prefix=None, + *, formatter=None, threshold=None, + edgeitems=None, sign=None, floatmode=None, suffix=None, + legacy=None): + return (a,) + + +@array_function_dispatch(_array2string_dispatcher, module='numpy') +def array2string(a, max_line_width=None, precision=None, + suppress_small=None, separator=' ', prefix="", + *, formatter=None, threshold=None, + edgeitems=None, sign=None, floatmode=None, suffix="", + legacy=None): + """ + Return a string representation of an array. + + Parameters + ---------- + a : ndarray + Input array. + max_line_width : int, optional + Inserts newlines if text is longer than `max_line_width`. + Defaults to ``numpy.get_printoptions()['linewidth']``. + precision : int or None, optional + Floating point precision. + Defaults to ``numpy.get_printoptions()['precision']``. + suppress_small : bool, optional + Represent numbers "very close" to zero as zero; default is False. + Very close is defined by precision: if the precision is 8, e.g., + numbers smaller (in absolute value) than 5e-9 are represented as + zero. + Defaults to ``numpy.get_printoptions()['suppress']``. + separator : str, optional + Inserted between elements. + prefix : str, optional + suffix : str, optional + The length of the prefix and suffix strings are used to respectively + align and wrap the output. An array is typically printed as:: + + prefix + array2string(a) + suffix + + The output is left-padded by the length of the prefix string, and + wrapping is forced at the column ``max_line_width - len(suffix)``. + It should be noted that the content of prefix and suffix strings are + not included in the output. + formatter : dict of callables, optional + If not None, the keys should indicate the type(s) that the respective + formatting function applies to. Callables should return a string. + Types that are not specified (by their corresponding keys) are handled + by the default formatters. Individual types for which a formatter + can be set are: + + - 'bool' + - 'int' + - 'timedelta' : a `numpy.timedelta64` + - 'datetime' : a `numpy.datetime64` + - 'float' + - 'longfloat' : 128-bit floats + - 'complexfloat' + - 'longcomplexfloat' : composed of two 128-bit floats + - 'void' : type `numpy.void` + - 'numpystr' : types `numpy.bytes_` and `numpy.str_` + + Other keys that can be used to set a group of types at once are: + + - 'all' : sets all types + - 'int_kind' : sets 'int' + - 'float_kind' : sets 'float' and 'longfloat' + - 'complex_kind' : sets 'complexfloat' and 'longcomplexfloat' + - 'str_kind' : sets 'numpystr' + threshold : int, optional + Total number of array elements which trigger summarization + rather than full repr. + Defaults to ``numpy.get_printoptions()['threshold']``. + edgeitems : int, optional + Number of array items in summary at beginning and end of + each dimension. + Defaults to ``numpy.get_printoptions()['edgeitems']``. + sign : string, either '-', '+', or ' ', optional + Controls printing of the sign of floating-point types. If '+', always + print the sign of positive values. If ' ', always prints a space + (whitespace character) in the sign position of positive values. If + '-', omit the sign character of positive values. + Defaults to ``numpy.get_printoptions()['sign']``. + + .. versionchanged:: 2.0 + The sign parameter can now be an integer type, previously + types were floating-point types. + + floatmode : str, optional + Controls the interpretation of the `precision` option for + floating-point types. + Defaults to ``numpy.get_printoptions()['floatmode']``. + Can take the following values: + + - 'fixed': Always print exactly `precision` fractional digits, + even if this would print more or fewer digits than + necessary to specify the value uniquely. + - 'unique': Print the minimum number of fractional digits necessary + to represent each value uniquely. Different elements may + have a different number of digits. The value of the + `precision` option is ignored. + - 'maxprec': Print at most `precision` fractional digits, but if + an element can be uniquely represented with fewer digits + only print it with that many. + - 'maxprec_equal': Print at most `precision` fractional digits, + but if every element in the array can be uniquely + represented with an equal number of fewer digits, use that + many digits for all elements. + legacy : string or `False`, optional + If set to the string ``'1.13'`` enables 1.13 legacy printing mode. This + approximates numpy 1.13 print output by including a space in the sign + position of floats and different behavior for 0d arrays. If set to + `False`, disables legacy mode. Unrecognized strings will be ignored + with a warning for forward compatibility. + + Returns + ------- + array_str : str + String representation of the array. + + Raises + ------ + TypeError + if a callable in `formatter` does not return a string. + + See Also + -------- + array_str, array_repr, set_printoptions, get_printoptions + + Notes + ----- + If a formatter is specified for a certain type, the `precision` keyword is + ignored for that type. + + This is a very flexible function; `array_repr` and `array_str` are using + `array2string` internally so keywords with the same name should work + identically in all three functions. + + Examples + -------- + >>> import numpy as np + >>> x = np.array([1e-16,1,2,3]) + >>> np.array2string(x, precision=2, separator=',', + ... suppress_small=True) + '[0.,1.,2.,3.]' + + >>> x = np.arange(3.) + >>> np.array2string(x, formatter={'float_kind':lambda x: "%.2f" % x}) + '[0.00 1.00 2.00]' + + >>> x = np.arange(3) + >>> np.array2string(x, formatter={'int':lambda x: hex(x)}) + '[0x0 0x1 0x2]' + + """ + + overrides = _make_options_dict(precision, threshold, edgeitems, + max_line_width, suppress_small, None, None, + sign, formatter, floatmode, legacy) + options = format_options.get().copy() + options.update(overrides) + + if options['legacy'] <= 113: + if a.shape == () and a.dtype.names is None: + return repr(a.item()) + + if options['legacy'] > 113: + options['linewidth'] -= len(suffix) + + # treat as a null array if any of shape elements == 0 + if a.size == 0: + return "[]" + + return _array2string(a, options, separator, prefix) + + +def _extendLine(s, line, word, line_width, next_line_prefix, legacy): + needs_wrap = len(line) + len(word) > line_width + if legacy > 113: + # don't wrap lines if it won't help + if len(line) <= len(next_line_prefix): + needs_wrap = False + + if needs_wrap: + s += line.rstrip() + "\n" + line = next_line_prefix + line += word + return s, line + + +def _extendLine_pretty(s, line, word, line_width, next_line_prefix, legacy): + """ + Extends line with nicely formatted (possibly multi-line) string ``word``. + """ + words = word.splitlines() + if len(words) == 1 or legacy <= 113: + return _extendLine(s, line, word, line_width, next_line_prefix, legacy) + + max_word_length = max(len(word) for word in words) + if (len(line) + max_word_length > line_width and + len(line) > len(next_line_prefix)): + s += line.rstrip() + '\n' + line = next_line_prefix + words[0] + indent = next_line_prefix + else: + indent = len(line) * ' ' + line += words[0] + + for word in words[1::]: + s += line.rstrip() + '\n' + line = indent + word + + suffix_length = max_word_length - len(words[-1]) + line += suffix_length * ' ' + + return s, line + +def _formatArray(a, format_function, line_width, next_line_prefix, + separator, edge_items, summary_insert, legacy): + """formatArray is designed for two modes of operation: + + 1. Full output + + 2. Summarized output + + """ + def recurser(index, hanging_indent, curr_width): + """ + By using this local function, we don't need to recurse with all the + arguments. Since this function is not created recursively, the cost is + not significant + """ + axis = len(index) + axes_left = a.ndim - axis + + if axes_left == 0: + return format_function(a[index]) + + # when recursing, add a space to align with the [ added, and reduce the + # length of the line by 1 + next_hanging_indent = hanging_indent + ' ' + if legacy <= 113: + next_width = curr_width + else: + next_width = curr_width - len(']') + + a_len = a.shape[axis] + show_summary = summary_insert and 2 * edge_items < a_len + if show_summary: + leading_items = edge_items + trailing_items = edge_items + else: + leading_items = 0 + trailing_items = a_len + + # stringify the array with the hanging indent on the first line too + s = '' + + # last axis (rows) - wrap elements if they would not fit on one line + if axes_left == 1: + # the length up until the beginning of the separator / bracket + if legacy <= 113: + elem_width = curr_width - len(separator.rstrip()) + else: + elem_width = curr_width - max( + len(separator.rstrip()), len(']') + ) + + line = hanging_indent + for i in range(leading_items): + word = recurser(index + (i,), next_hanging_indent, next_width) + s, line = _extendLine_pretty( + s, line, word, elem_width, hanging_indent, legacy) + line += separator + + if show_summary: + s, line = _extendLine( + s, line, summary_insert, elem_width, hanging_indent, legacy + ) + if legacy <= 113: + line += ", " + else: + line += separator + + for i in range(trailing_items, 1, -1): + word = recurser(index + (-i,), next_hanging_indent, next_width) + s, line = _extendLine_pretty( + s, line, word, elem_width, hanging_indent, legacy) + line += separator + + if legacy <= 113: + # width of the separator is not considered on 1.13 + elem_width = curr_width + word = recurser(index + (-1,), next_hanging_indent, next_width) + s, line = _extendLine_pretty( + s, line, word, elem_width, hanging_indent, legacy) + + s += line + + # other axes - insert newlines between rows + else: + s = '' + line_sep = separator.rstrip() + '\n' * (axes_left - 1) + + for i in range(leading_items): + nested = recurser( + index + (i,), next_hanging_indent, next_width + ) + s += hanging_indent + nested + line_sep + + if show_summary: + if legacy <= 113: + # trailing space, fixed nbr of newlines, + # and fixed separator + s += hanging_indent + summary_insert + ", \n" + else: + s += hanging_indent + summary_insert + line_sep + + for i in range(trailing_items, 1, -1): + nested = recurser(index + (-i,), next_hanging_indent, + next_width) + s += hanging_indent + nested + line_sep + + nested = recurser(index + (-1,), next_hanging_indent, next_width) + s += hanging_indent + nested + + # remove the hanging indent, and wrap in [] + s = '[' + s[len(hanging_indent):] + ']' + return s + + try: + # invoke the recursive part with an initial index and prefix + return recurser(index=(), + hanging_indent=next_line_prefix, + curr_width=line_width) + finally: + # recursive closures have a cyclic reference to themselves, which + # requires gc to collect (gh-10620). To avoid this problem, for + # performance and PyPy friendliness, we break the cycle: + recurser = None + +def _none_or_positive_arg(x, name): + if x is None: + return -1 + if x < 0: + raise ValueError(f"{name} must be >= 0") + return x + +class FloatingFormat: + """ Formatter for subtypes of np.floating """ + def __init__(self, data, precision, floatmode, suppress_small, sign=False, + *, legacy=None): + # for backcompatibility, accept bools + if isinstance(sign, bool): + sign = '+' if sign else '-' + + self._legacy = legacy + if self._legacy <= 113: + # when not 0d, legacy does not support '-' + if data.shape != () and sign == '-': + sign = ' ' + + self.floatmode = floatmode + if floatmode == 'unique': + self.precision = None + else: + self.precision = precision + + self.precision = _none_or_positive_arg(self.precision, 'precision') + + self.suppress_small = suppress_small + self.sign = sign + self.exp_format = False + self.large_exponent = False + self.fillFormat(data) + + def fillFormat(self, data): + # only the finite values are used to compute the number of digits + finite_vals = data[isfinite(data)] + + # choose exponential mode based on the non-zero finite values: + abs_non_zero = absolute(finite_vals[finite_vals != 0]) + if len(abs_non_zero) != 0: + max_val = np.max(abs_non_zero) + min_val = np.min(abs_non_zero) + if self._legacy <= 202: + exp_cutoff_max = 1.e8 + else: + # consider data type while deciding the max cutoff for exp format + exp_cutoff_max = 10.**min(8, np.finfo(data.dtype).precision) + with errstate(over='ignore'): # division can overflow + if max_val >= exp_cutoff_max or (not self.suppress_small and + (min_val < 0.0001 or max_val / min_val > 1000.)): + self.exp_format = True + + # do a first pass of printing all the numbers, to determine sizes + if len(finite_vals) == 0: + self.pad_left = 0 + self.pad_right = 0 + self.trim = '.' + self.exp_size = -1 + self.unique = True + self.min_digits = None + elif self.exp_format: + trim, unique = '.', True + if self.floatmode == 'fixed' or self._legacy <= 113: + trim, unique = 'k', False + strs = (dragon4_scientific(x, precision=self.precision, + unique=unique, trim=trim, sign=self.sign == '+') + for x in finite_vals) + frac_strs, _, exp_strs = zip(*(s.partition('e') for s in strs)) + int_part, frac_part = zip(*(s.split('.') for s in frac_strs)) + self.exp_size = max(len(s) for s in exp_strs) - 1 + + self.trim = 'k' + self.precision = max(len(s) for s in frac_part) + self.min_digits = self.precision + self.unique = unique + + # for back-compat with np 1.13, use 2 spaces & sign and full prec + if self._legacy <= 113: + self.pad_left = 3 + else: + # this should be only 1 or 2. Can be calculated from sign. + self.pad_left = max(len(s) for s in int_part) + # pad_right is only needed for nan length calculation + self.pad_right = self.exp_size + 2 + self.precision + else: + trim, unique = '.', True + if self.floatmode == 'fixed': + trim, unique = 'k', False + strs = (dragon4_positional(x, precision=self.precision, + fractional=True, + unique=unique, trim=trim, + sign=self.sign == '+') + for x in finite_vals) + int_part, frac_part = zip(*(s.split('.') for s in strs)) + if self._legacy <= 113: + self.pad_left = 1 + max(len(s.lstrip('-+')) for s in int_part) + else: + self.pad_left = max(len(s) for s in int_part) + self.pad_right = max(len(s) for s in frac_part) + self.exp_size = -1 + self.unique = unique + + if self.floatmode in ['fixed', 'maxprec_equal']: + self.precision = self.min_digits = self.pad_right + self.trim = 'k' + else: + self.trim = '.' + self.min_digits = 0 + + if self._legacy > 113: + # account for sign = ' ' by adding one to pad_left + if self.sign == ' ' and not any(np.signbit(finite_vals)): + self.pad_left += 1 + + # if there are non-finite values, may need to increase pad_left + if data.size != finite_vals.size: + neginf = self.sign != '-' or any(data[isinf(data)] < 0) + offset = self.pad_right + 1 # +1 for decimal pt + current_options = format_options.get() + self.pad_left = max( + self.pad_left, len(current_options['nanstr']) - offset, + len(current_options['infstr']) + neginf - offset + ) + + def __call__(self, x): + if not np.isfinite(x): + with errstate(invalid='ignore'): + current_options = format_options.get() + if np.isnan(x): + sign = '+' if self.sign == '+' else '' + ret = sign + current_options['nanstr'] + else: # isinf + sign = '-' if x < 0 else '+' if self.sign == '+' else '' + ret = sign + current_options['infstr'] + return ' ' * ( + self.pad_left + self.pad_right + 1 - len(ret) + ) + ret + + if self.exp_format: + return dragon4_scientific(x, + precision=self.precision, + min_digits=self.min_digits, + unique=self.unique, + trim=self.trim, + sign=self.sign == '+', + pad_left=self.pad_left, + exp_digits=self.exp_size) + else: + return dragon4_positional(x, + precision=self.precision, + min_digits=self.min_digits, + unique=self.unique, + fractional=True, + trim=self.trim, + sign=self.sign == '+', + pad_left=self.pad_left, + pad_right=self.pad_right) + + +@set_module('numpy') +def format_float_scientific(x, precision=None, unique=True, trim='k', + sign=False, pad_left=None, exp_digits=None, + min_digits=None): + """ + Format a floating-point scalar as a decimal string in scientific notation. + + Provides control over rounding, trimming and padding. Uses and assumes + IEEE unbiased rounding. Uses the "Dragon4" algorithm. + + Parameters + ---------- + x : python float or numpy floating scalar + Value to format. + precision : non-negative integer or None, optional + Maximum number of digits to print. May be None if `unique` is + `True`, but must be an integer if unique is `False`. + unique : boolean, optional + If `True`, use a digit-generation strategy which gives the shortest + representation which uniquely identifies the floating-point number from + other values of the same type, by judicious rounding. If `precision` + is given fewer digits than necessary can be printed. If `min_digits` + is given more can be printed, in which cases the last digit is rounded + with unbiased rounding. + If `False`, digits are generated as if printing an infinite-precision + value and stopping after `precision` digits, rounding the remaining + value with unbiased rounding + trim : one of 'k', '.', '0', '-', optional + Controls post-processing trimming of trailing digits, as follows: + + * 'k' : keep trailing zeros, keep decimal point (no trimming) + * '.' : trim all trailing zeros, leave decimal point + * '0' : trim all but the zero before the decimal point. Insert the + zero if it is missing. + * '-' : trim trailing zeros and any trailing decimal point + sign : boolean, optional + Whether to show the sign for positive values. + pad_left : non-negative integer, optional + Pad the left side of the string with whitespace until at least that + many characters are to the left of the decimal point. + exp_digits : non-negative integer, optional + Pad the exponent with zeros until it contains at least this + many digits. If omitted, the exponent will be at least 2 digits. + min_digits : non-negative integer or None, optional + Minimum number of digits to print. This only has an effect for + `unique=True`. In that case more digits than necessary to uniquely + identify the value may be printed and rounded unbiased. + + .. versionadded:: 1.21.0 + + Returns + ------- + rep : string + The string representation of the floating point value + + See Also + -------- + format_float_positional + + Examples + -------- + >>> import numpy as np + >>> np.format_float_scientific(np.float32(np.pi)) + '3.1415927e+00' + >>> s = np.float32(1.23e24) + >>> np.format_float_scientific(s, unique=False, precision=15) + '1.230000071797338e+24' + >>> np.format_float_scientific(s, exp_digits=4) + '1.23e+0024' + """ + precision = _none_or_positive_arg(precision, 'precision') + pad_left = _none_or_positive_arg(pad_left, 'pad_left') + exp_digits = _none_or_positive_arg(exp_digits, 'exp_digits') + min_digits = _none_or_positive_arg(min_digits, 'min_digits') + if min_digits > 0 and precision > 0 and min_digits > precision: + raise ValueError("min_digits must be less than or equal to precision") + return dragon4_scientific(x, precision=precision, unique=unique, + trim=trim, sign=sign, pad_left=pad_left, + exp_digits=exp_digits, min_digits=min_digits) + + +@set_module('numpy') +def format_float_positional(x, precision=None, unique=True, + fractional=True, trim='k', sign=False, + pad_left=None, pad_right=None, min_digits=None): + """ + Format a floating-point scalar as a decimal string in positional notation. + + Provides control over rounding, trimming and padding. Uses and assumes + IEEE unbiased rounding. Uses the "Dragon4" algorithm. + + Parameters + ---------- + x : python float or numpy floating scalar + Value to format. + precision : non-negative integer or None, optional + Maximum number of digits to print. May be None if `unique` is + `True`, but must be an integer if unique is `False`. + unique : boolean, optional + If `True`, use a digit-generation strategy which gives the shortest + representation which uniquely identifies the floating-point number from + other values of the same type, by judicious rounding. If `precision` + is given fewer digits than necessary can be printed, or if `min_digits` + is given more can be printed, in which cases the last digit is rounded + with unbiased rounding. + If `False`, digits are generated as if printing an infinite-precision + value and stopping after `precision` digits, rounding the remaining + value with unbiased rounding + fractional : boolean, optional + If `True`, the cutoffs of `precision` and `min_digits` refer to the + total number of digits after the decimal point, including leading + zeros. + If `False`, `precision` and `min_digits` refer to the total number of + significant digits, before or after the decimal point, ignoring leading + zeros. + trim : one of 'k', '.', '0', '-', optional + Controls post-processing trimming of trailing digits, as follows: + + * 'k' : keep trailing zeros, keep decimal point (no trimming) + * '.' : trim all trailing zeros, leave decimal point + * '0' : trim all but the zero before the decimal point. Insert the + zero if it is missing. + * '-' : trim trailing zeros and any trailing decimal point + sign : boolean, optional + Whether to show the sign for positive values. + pad_left : non-negative integer, optional + Pad the left side of the string with whitespace until at least that + many characters are to the left of the decimal point. + pad_right : non-negative integer, optional + Pad the right side of the string with whitespace until at least that + many characters are to the right of the decimal point. + min_digits : non-negative integer or None, optional + Minimum number of digits to print. Only has an effect if `unique=True` + in which case additional digits past those necessary to uniquely + identify the value may be printed, rounding the last additional digit. + + .. versionadded:: 1.21.0 + + Returns + ------- + rep : string + The string representation of the floating point value + + See Also + -------- + format_float_scientific + + Examples + -------- + >>> import numpy as np + >>> np.format_float_positional(np.float32(np.pi)) + '3.1415927' + >>> np.format_float_positional(np.float16(np.pi)) + '3.14' + >>> np.format_float_positional(np.float16(0.3)) + '0.3' + >>> np.format_float_positional(np.float16(0.3), unique=False, precision=10) + '0.3000488281' + """ + precision = _none_or_positive_arg(precision, 'precision') + pad_left = _none_or_positive_arg(pad_left, 'pad_left') + pad_right = _none_or_positive_arg(pad_right, 'pad_right') + min_digits = _none_or_positive_arg(min_digits, 'min_digits') + if not fractional and precision == 0: + raise ValueError("precision must be greater than 0 if " + "fractional=False") + if min_digits > 0 and precision > 0 and min_digits > precision: + raise ValueError("min_digits must be less than or equal to precision") + return dragon4_positional(x, precision=precision, unique=unique, + fractional=fractional, trim=trim, + sign=sign, pad_left=pad_left, + pad_right=pad_right, min_digits=min_digits) + +class IntegerFormat: + def __init__(self, data, sign='-'): + if data.size > 0: + data_max = np.max(data) + data_min = np.min(data) + data_max_str_len = len(str(data_max)) + if sign == ' ' and data_min < 0: + sign = '-' + if data_max >= 0 and sign in "+ ": + data_max_str_len += 1 + max_str_len = max(data_max_str_len, + len(str(data_min))) + else: + max_str_len = 0 + self.format = f'{{:{sign}{max_str_len}d}}' + + def __call__(self, x): + return self.format.format(x) + +class BoolFormat: + def __init__(self, data, **kwargs): + # add an extra space so " True" and "False" have the same length and + # array elements align nicely when printed, except in 0d arrays + self.truestr = ' True' if data.shape != () else 'True' + + def __call__(self, x): + return self.truestr if x else "False" + + +class ComplexFloatingFormat: + """ Formatter for subtypes of np.complexfloating """ + def __init__(self, x, precision, floatmode, suppress_small, + sign=False, *, legacy=None): + # for backcompatibility, accept bools + if isinstance(sign, bool): + sign = '+' if sign else '-' + + floatmode_real = floatmode_imag = floatmode + if legacy <= 113: + floatmode_real = 'maxprec_equal' + floatmode_imag = 'maxprec' + + self.real_format = FloatingFormat( + x.real, precision, floatmode_real, suppress_small, + sign=sign, legacy=legacy + ) + self.imag_format = FloatingFormat( + x.imag, precision, floatmode_imag, suppress_small, + sign='+', legacy=legacy + ) + + def __call__(self, x): + r = self.real_format(x.real) + i = self.imag_format(x.imag) + + # add the 'j' before the terminal whitespace in i + sp = len(i.rstrip()) + i = i[:sp] + 'j' + i[sp:] + + return r + i + + +class _TimelikeFormat: + def __init__(self, data): + non_nat = data[~isnat(data)] + if len(non_nat) > 0: + # Max str length of non-NaT elements + max_str_len = max(len(self._format_non_nat(np.max(non_nat))), + len(self._format_non_nat(np.min(non_nat)))) + else: + max_str_len = 0 + if len(non_nat) < data.size: + # data contains a NaT + max_str_len = max(max_str_len, 5) + self._format = f'%{max_str_len}s' + self._nat = "'NaT'".rjust(max_str_len) + + def _format_non_nat(self, x): + # override in subclass + raise NotImplementedError + + def __call__(self, x): + if isnat(x): + return self._nat + else: + return self._format % self._format_non_nat(x) + + +class DatetimeFormat(_TimelikeFormat): + def __init__(self, x, unit=None, timezone=None, casting='same_kind', + legacy=False): + # Get the unit from the dtype + if unit is None: + if x.dtype.kind == 'M': + unit = datetime_data(x.dtype)[0] + else: + unit = 's' + + if timezone is None: + timezone = 'naive' + self.timezone = timezone + self.unit = unit + self.casting = casting + self.legacy = legacy + + # must be called after the above are configured + super().__init__(x) + + def __call__(self, x): + if self.legacy <= 113: + return self._format_non_nat(x) + return super().__call__(x) + + def _format_non_nat(self, x): + return "'%s'" % datetime_as_string(x, + unit=self.unit, + timezone=self.timezone, + casting=self.casting) + + +class TimedeltaFormat(_TimelikeFormat): + def _format_non_nat(self, x): + return str(x.astype('i8')) + + +class SubArrayFormat: + def __init__(self, format_function, **options): + self.format_function = format_function + self.threshold = options['threshold'] + self.edge_items = options['edgeitems'] + + def __call__(self, a): + self.summary_insert = "..." if a.size > self.threshold else "" + return self.format_array(a) + + def format_array(self, a): + if np.ndim(a) == 0: + return self.format_function(a) + + if self.summary_insert and a.shape[0] > 2 * self.edge_items: + formatted = ( + [self.format_array(a_) for a_ in a[:self.edge_items]] + + [self.summary_insert] + + [self.format_array(a_) for a_ in a[-self.edge_items:]] + ) + else: + formatted = [self.format_array(a_) for a_ in a] + + return "[" + ", ".join(formatted) + "]" + + +class StructuredVoidFormat: + """ + Formatter for structured np.void objects. + + This does not work on structured alias types like + np.dtype(('i4', 'i2,i2')), as alias scalars lose their field information, + and the implementation relies upon np.void.__getitem__. + """ + def __init__(self, format_functions): + self.format_functions = format_functions + + @classmethod + def from_data(cls, data, **options): + """ + This is a second way to initialize StructuredVoidFormat, + using the raw data as input. Added to avoid changing + the signature of __init__. + """ + format_functions = [] + for field_name in data.dtype.names: + format_function = _get_format_function(data[field_name], **options) + if data.dtype[field_name].shape != (): + format_function = SubArrayFormat(format_function, **options) + format_functions.append(format_function) + return cls(format_functions) + + def __call__(self, x): + str_fields = [ + format_function(field) + for field, format_function in zip(x, self.format_functions) + ] + if len(str_fields) == 1: + return f"({str_fields[0]},)" + else: + return f"({', '.join(str_fields)})" + + +def _void_scalar_to_string(x, is_repr=True): + """ + Implements the repr for structured-void scalars. It is called from the + scalartypes.c.src code, and is placed here because it uses the elementwise + formatters defined above. + """ + options = format_options.get().copy() + + if options["legacy"] <= 125: + return StructuredVoidFormat.from_data(array(x), **options)(x) + + if options.get('formatter') is None: + options['formatter'] = {} + options['formatter'].setdefault('float_kind', str) + val_repr = StructuredVoidFormat.from_data(array(x), **options)(x) + if not is_repr: + return val_repr + cls = type(x) + cls_fqn = cls.__module__.replace("numpy", "np") + "." + cls.__name__ + void_dtype = np.dtype((np.void, x.dtype)) + return f"{cls_fqn}({val_repr}, dtype={void_dtype!s})" + + +_typelessdata = [int_, float64, complex128, _nt.bool] + + +def dtype_is_implied(dtype): + """ + Determine if the given dtype is implied by the representation + of its values. + + Parameters + ---------- + dtype : dtype + Data type + + Returns + ------- + implied : bool + True if the dtype is implied by the representation of its values. + + Examples + -------- + >>> import numpy as np + >>> np._core.arrayprint.dtype_is_implied(int) + True + >>> np.array([1, 2, 3], int) + array([1, 2, 3]) + >>> np._core.arrayprint.dtype_is_implied(np.int8) + False + >>> np.array([1, 2, 3], np.int8) + array([1, 2, 3], dtype=int8) + """ + dtype = np.dtype(dtype) + if format_options.get()['legacy'] <= 113 and dtype.type == np.bool: + return False + + # not just void types can be structured, and names are not part of the repr + if dtype.names is not None: + return False + + # should care about endianness *unless size is 1* (e.g., int8, bool) + if not dtype.isnative: + return False + + return dtype.type in _typelessdata + + +def dtype_short_repr(dtype): + """ + Convert a dtype to a short form which evaluates to the same dtype. + + The intent is roughly that the following holds + + >>> from numpy import * + >>> dt = np.int64([1, 2]).dtype + >>> assert eval(dtype_short_repr(dt)) == dt + """ + if type(dtype).__repr__ != np.dtype.__repr__: + # TODO: Custom repr for user DTypes, logic should likely move. + return repr(dtype) + if dtype.names is not None: + # structured dtypes give a list or tuple repr + return str(dtype) + elif issubclass(dtype.type, flexible): + # handle these separately so they don't give garbage like str256 + return f"'{str(dtype)}'" + + typename = dtype.name + if not dtype.isnative: + # deal with cases like dtype(' 210 + and arr.size > current_options['threshold'])): + extras.append(f"shape={arr.shape}") + if not dtype_is_implied(arr.dtype) or arr.size == 0: + extras.append(f"dtype={dtype_short_repr(arr.dtype)}") + + if not extras: + return prefix + lst + ")" + + arr_str = prefix + lst + "," + extra_str = ", ".join(extras) + ")" + # compute whether we should put extras on a new line: Do so if adding the + # extras would extend the last line past max_line_width. + # Note: This line gives the correct result even when rfind returns -1. + last_line_len = len(arr_str) - (arr_str.rfind('\n') + 1) + spacer = " " + if current_options['legacy'] <= 113: + if issubclass(arr.dtype.type, flexible): + spacer = '\n' + ' ' * len(prefix) + elif last_line_len + len(extra_str) + 1 > max_line_width: + spacer = '\n' + ' ' * len(prefix) + + return arr_str + spacer + extra_str + + +def _array_repr_dispatcher( + arr, max_line_width=None, precision=None, suppress_small=None): + return (arr,) + + +@array_function_dispatch(_array_repr_dispatcher, module='numpy') +def array_repr(arr, max_line_width=None, precision=None, suppress_small=None): + """ + Return the string representation of an array. + + Parameters + ---------- + arr : ndarray + Input array. + max_line_width : int, optional + Inserts newlines if text is longer than `max_line_width`. + Defaults to ``numpy.get_printoptions()['linewidth']``. + precision : int, optional + Floating point precision. + Defaults to ``numpy.get_printoptions()['precision']``. + suppress_small : bool, optional + Represent numbers "very close" to zero as zero; default is False. + Very close is defined by precision: if the precision is 8, e.g., + numbers smaller (in absolute value) than 5e-9 are represented as + zero. + Defaults to ``numpy.get_printoptions()['suppress']``. + + Returns + ------- + string : str + The string representation of an array. + + See Also + -------- + array_str, array2string, set_printoptions + + Examples + -------- + >>> import numpy as np + >>> np.array_repr(np.array([1,2])) + 'array([1, 2])' + >>> np.array_repr(np.ma.array([0.])) + 'MaskedArray([0.])' + >>> np.array_repr(np.array([], np.int32)) + 'array([], dtype=int32)' + + >>> x = np.array([1e-6, 4e-7, 2, 3]) + >>> np.array_repr(x, precision=6, suppress_small=True) + 'array([0.000001, 0. , 2. , 3. ])' + + """ + return _array_repr_implementation( + arr, max_line_width, precision, suppress_small) + + +@_recursive_guard() +def _guarded_repr_or_str(v): + if isinstance(v, bytes): + return repr(v) + return str(v) + + +def _array_str_implementation( + a, max_line_width=None, precision=None, suppress_small=None, + array2string=array2string): + """Internal version of array_str() that allows overriding array2string.""" + if (format_options.get()['legacy'] <= 113 and + a.shape == () and not a.dtype.names): + return str(a.item()) + + # the str of 0d arrays is a special case: It should appear like a scalar, + # so floats are not truncated by `precision`, and strings are not wrapped + # in quotes. So we return the str of the scalar value. + if a.shape == (): + # obtain a scalar and call str on it, avoiding problems for subclasses + # for which indexing with () returns a 0d instead of a scalar by using + # ndarray's getindex. Also guard against recursive 0d object arrays. + return _guarded_repr_or_str(np.ndarray.__getitem__(a, ())) + + return array2string(a, max_line_width, precision, suppress_small, ' ', "") + + +def _array_str_dispatcher( + a, max_line_width=None, precision=None, suppress_small=None): + return (a,) + + +@array_function_dispatch(_array_str_dispatcher, module='numpy') +def array_str(a, max_line_width=None, precision=None, suppress_small=None): + """ + Return a string representation of the data in an array. + + The data in the array is returned as a single string. This function is + similar to `array_repr`, the difference being that `array_repr` also + returns information on the kind of array and its data type. + + Parameters + ---------- + a : ndarray + Input array. + max_line_width : int, optional + Inserts newlines if text is longer than `max_line_width`. + Defaults to ``numpy.get_printoptions()['linewidth']``. + precision : int, optional + Floating point precision. + Defaults to ``numpy.get_printoptions()['precision']``. + suppress_small : bool, optional + Represent numbers "very close" to zero as zero; default is False. + Very close is defined by precision: if the precision is 8, e.g., + numbers smaller (in absolute value) than 5e-9 are represented as + zero. + Defaults to ``numpy.get_printoptions()['suppress']``. + + See Also + -------- + array2string, array_repr, set_printoptions + + Examples + -------- + >>> import numpy as np + >>> np.array_str(np.arange(3)) + '[0 1 2]' + + """ + return _array_str_implementation( + a, max_line_width, precision, suppress_small) + + +# needed if __array_function__ is disabled +_array2string_impl = getattr(array2string, '__wrapped__', array2string) +_default_array_str = functools.partial(_array_str_implementation, + array2string=_array2string_impl) +_default_array_repr = functools.partial(_array_repr_implementation, + array2string=_array2string_impl) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/arrayprint.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/arrayprint.pyi new file mode 100644 index 0000000000000000000000000000000000000000..307f844634ca02b3ee17f426f8f17d38024fd444 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/arrayprint.pyi @@ -0,0 +1,158 @@ +from collections.abc import Callable + +# Using a private class is by no means ideal, but it is simply a consequence +# of a `contextlib.context` returning an instance of aforementioned class +from contextlib import _GeneratorContextManager +from typing import ( + Any, + Final, + Literal, + SupportsIndex, + TypeAlias, + TypedDict, + type_check_only, +) + +import numpy as np +from numpy._typing import NDArray, _CharLike_co, _FloatLike_co + +__all__ = [ + "array2string", + "array_repr", + "array_str", + "format_float_positional", + "format_float_scientific", + "get_printoptions", + "printoptions", + "set_printoptions", +] + +### + +_FloatMode: TypeAlias = Literal["fixed", "unique", "maxprec", "maxprec_equal"] +_LegacyNoStyle: TypeAlias = Literal["1.21", "1.25", "2.1", False] +_Legacy: TypeAlias = Literal["1.13", _LegacyNoStyle] +_Sign: TypeAlias = Literal["-", "+", " "] +_Trim: TypeAlias = Literal["k", ".", "0", "-"] +_ReprFunc: TypeAlias = Callable[[NDArray[Any]], str] + +@type_check_only +class _FormatDict(TypedDict, total=False): + bool: Callable[[np.bool], str] + int: Callable[[np.integer], str] + timedelta: Callable[[np.timedelta64], str] + datetime: Callable[[np.datetime64], str] + float: Callable[[np.floating], str] + longfloat: Callable[[np.longdouble], str] + complexfloat: Callable[[np.complexfloating], str] + longcomplexfloat: Callable[[np.clongdouble], str] + void: Callable[[np.void], str] + numpystr: Callable[[_CharLike_co], str] + object: Callable[[object], str] + all: Callable[[object], str] + int_kind: Callable[[np.integer], str] + float_kind: Callable[[np.floating], str] + complex_kind: Callable[[np.complexfloating], str] + str_kind: Callable[[_CharLike_co], str] + +@type_check_only +class _FormatOptions(TypedDict): + precision: int + threshold: int + edgeitems: int + linewidth: int + suppress: bool + nanstr: str + infstr: str + formatter: _FormatDict | None + sign: _Sign + floatmode: _FloatMode + legacy: _Legacy + +### + +__docformat__: Final = "restructuredtext" # undocumented + +def set_printoptions( + precision: SupportsIndex | None = None, + threshold: int | None = None, + edgeitems: int | None = None, + linewidth: int | None = None, + suppress: bool | None = None, + nanstr: str | None = None, + infstr: str | None = None, + formatter: _FormatDict | None = None, + sign: _Sign | None = None, + floatmode: _FloatMode | None = None, + *, + legacy: _Legacy | None = None, + override_repr: _ReprFunc | None = None, +) -> None: ... +def get_printoptions() -> _FormatOptions: ... + +# public numpy export +def array2string( + a: NDArray[Any], + max_line_width: int | None = None, + precision: SupportsIndex | None = None, + suppress_small: bool | None = None, + separator: str = " ", + prefix: str = "", + *, + formatter: _FormatDict | None = None, + threshold: int | None = None, + edgeitems: int | None = None, + sign: _Sign | None = None, + floatmode: _FloatMode | None = None, + suffix: str = "", + legacy: _Legacy | None = None, +) -> str: ... + +def format_float_scientific( + x: _FloatLike_co, + precision: int | None = None, + unique: bool = True, + trim: _Trim = "k", + sign: bool = False, + pad_left: int | None = None, + exp_digits: int | None = None, + min_digits: int | None = None, +) -> str: ... +def format_float_positional( + x: _FloatLike_co, + precision: int | None = None, + unique: bool = True, + fractional: bool = True, + trim: _Trim = "k", + sign: bool = False, + pad_left: int | None = None, + pad_right: int | None = None, + min_digits: int | None = None, +) -> str: ... +def array_repr( + arr: NDArray[Any], + max_line_width: int | None = None, + precision: SupportsIndex | None = None, + suppress_small: bool | None = None, +) -> str: ... +def array_str( + a: NDArray[Any], + max_line_width: int | None = None, + precision: SupportsIndex | None = None, + suppress_small: bool | None = None, +) -> str: ... +def printoptions( + precision: SupportsIndex | None = ..., + threshold: int | None = ..., + edgeitems: int | None = ..., + linewidth: int | None = ..., + suppress: bool | None = ..., + nanstr: str | None = ..., + infstr: str | None = ..., + formatter: _FormatDict | None = ..., + sign: _Sign | None = None, + floatmode: _FloatMode | None = None, + *, + legacy: _Legacy | None = None, + override_repr: _ReprFunc | None = None, +) -> _GeneratorContextManager[_FormatOptions]: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/cversions.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/cversions.py new file mode 100644 index 0000000000000000000000000000000000000000..00159c3a8031d8ccd44b226db42090f97014cd9f --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/cversions.py @@ -0,0 +1,13 @@ +"""Simple script to compute the api hash of the current API. + +The API has is defined by numpy_api_order and ufunc_api_order. + +""" +from os.path import dirname + +from code_generators.genapi import fullapi_hash +from code_generators.numpy_api import full_api + +if __name__ == '__main__': + curdir = dirname(__file__) + print(fullapi_hash(full_api)) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/defchararray.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/defchararray.py new file mode 100644 index 0000000000000000000000000000000000000000..1a8750507f419738bfcaed4263090c4f3a7bc591 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/defchararray.py @@ -0,0 +1,1414 @@ +""" +This module contains a set of functions for vectorized string +operations and methods. + +.. note:: + The `chararray` class exists for backwards compatibility with + Numarray, it is not recommended for new development. Starting from numpy + 1.4, if one needs arrays of strings, it is recommended to use arrays of + `dtype` `object_`, `bytes_` or `str_`, and use the free functions + in the `numpy.char` module for fast vectorized string operations. + +Some methods will only be available if the corresponding string method is +available in your version of Python. + +The preferred alias for `defchararray` is `numpy.char`. + +""" +import functools + +import numpy as np +from numpy._core import overrides +from numpy._core.multiarray import compare_chararrays +from numpy._core.strings import ( + _join as join, + _rsplit as rsplit, + _split as split, + _splitlines as splitlines, +) +from numpy._utils import set_module +from numpy.strings import * +from numpy.strings import ( + multiply as strings_multiply, + partition as strings_partition, + rpartition as strings_rpartition, +) + +from .numeric import array as narray, asarray as asnarray, ndarray +from .numerictypes import bytes_, character, str_ + +__all__ = [ + 'equal', 'not_equal', 'greater_equal', 'less_equal', + 'greater', 'less', 'str_len', 'add', 'multiply', 'mod', 'capitalize', + 'center', 'count', 'decode', 'encode', 'endswith', 'expandtabs', + 'find', 'index', 'isalnum', 'isalpha', 'isdigit', 'islower', 'isspace', + 'istitle', 'isupper', 'join', 'ljust', 'lower', 'lstrip', 'partition', + 'replace', 'rfind', 'rindex', 'rjust', 'rpartition', 'rsplit', + 'rstrip', 'split', 'splitlines', 'startswith', 'strip', 'swapcase', + 'title', 'translate', 'upper', 'zfill', 'isnumeric', 'isdecimal', + 'array', 'asarray', 'compare_chararrays', 'chararray' + ] + + +array_function_dispatch = functools.partial( + overrides.array_function_dispatch, module='numpy.char') + + +def _binary_op_dispatcher(x1, x2): + return (x1, x2) + + +@array_function_dispatch(_binary_op_dispatcher) +def equal(x1, x2): + """ + Return (x1 == x2) element-wise. + + Unlike `numpy.equal`, this comparison is performed by first + stripping whitespace characters from the end of the string. This + behavior is provided for backward-compatibility with numarray. + + Parameters + ---------- + x1, x2 : array_like of str or unicode + Input arrays of the same shape. + + Returns + ------- + out : ndarray + Output array of bools. + + Examples + -------- + >>> import numpy as np + >>> y = "aa " + >>> x = "aa" + >>> np.char.equal(x, y) + array(True) + + See Also + -------- + not_equal, greater_equal, less_equal, greater, less + """ + return compare_chararrays(x1, x2, '==', True) + + +@array_function_dispatch(_binary_op_dispatcher) +def not_equal(x1, x2): + """ + Return (x1 != x2) element-wise. + + Unlike `numpy.not_equal`, this comparison is performed by first + stripping whitespace characters from the end of the string. This + behavior is provided for backward-compatibility with numarray. + + Parameters + ---------- + x1, x2 : array_like of str or unicode + Input arrays of the same shape. + + Returns + ------- + out : ndarray + Output array of bools. + + See Also + -------- + equal, greater_equal, less_equal, greater, less + + Examples + -------- + >>> import numpy as np + >>> x1 = np.array(['a', 'b', 'c']) + >>> np.char.not_equal(x1, 'b') + array([ True, False, True]) + + """ + return compare_chararrays(x1, x2, '!=', True) + + +@array_function_dispatch(_binary_op_dispatcher) +def greater_equal(x1, x2): + """ + Return (x1 >= x2) element-wise. + + Unlike `numpy.greater_equal`, this comparison is performed by + first stripping whitespace characters from the end of the string. + This behavior is provided for backward-compatibility with + numarray. + + Parameters + ---------- + x1, x2 : array_like of str or unicode + Input arrays of the same shape. + + Returns + ------- + out : ndarray + Output array of bools. + + See Also + -------- + equal, not_equal, less_equal, greater, less + + Examples + -------- + >>> import numpy as np + >>> x1 = np.array(['a', 'b', 'c']) + >>> np.char.greater_equal(x1, 'b') + array([False, True, True]) + + """ + return compare_chararrays(x1, x2, '>=', True) + + +@array_function_dispatch(_binary_op_dispatcher) +def less_equal(x1, x2): + """ + Return (x1 <= x2) element-wise. + + Unlike `numpy.less_equal`, this comparison is performed by first + stripping whitespace characters from the end of the string. This + behavior is provided for backward-compatibility with numarray. + + Parameters + ---------- + x1, x2 : array_like of str or unicode + Input arrays of the same shape. + + Returns + ------- + out : ndarray + Output array of bools. + + See Also + -------- + equal, not_equal, greater_equal, greater, less + + Examples + -------- + >>> import numpy as np + >>> x1 = np.array(['a', 'b', 'c']) + >>> np.char.less_equal(x1, 'b') + array([ True, True, False]) + + """ + return compare_chararrays(x1, x2, '<=', True) + + +@array_function_dispatch(_binary_op_dispatcher) +def greater(x1, x2): + """ + Return (x1 > x2) element-wise. + + Unlike `numpy.greater`, this comparison is performed by first + stripping whitespace characters from the end of the string. This + behavior is provided for backward-compatibility with numarray. + + Parameters + ---------- + x1, x2 : array_like of str or unicode + Input arrays of the same shape. + + Returns + ------- + out : ndarray + Output array of bools. + + See Also + -------- + equal, not_equal, greater_equal, less_equal, less + + Examples + -------- + >>> import numpy as np + >>> x1 = np.array(['a', 'b', 'c']) + >>> np.char.greater(x1, 'b') + array([False, False, True]) + + """ + return compare_chararrays(x1, x2, '>', True) + + +@array_function_dispatch(_binary_op_dispatcher) +def less(x1, x2): + """ + Return (x1 < x2) element-wise. + + Unlike `numpy.greater`, this comparison is performed by first + stripping whitespace characters from the end of the string. This + behavior is provided for backward-compatibility with numarray. + + Parameters + ---------- + x1, x2 : array_like of str or unicode + Input arrays of the same shape. + + Returns + ------- + out : ndarray + Output array of bools. + + See Also + -------- + equal, not_equal, greater_equal, less_equal, greater + + Examples + -------- + >>> import numpy as np + >>> x1 = np.array(['a', 'b', 'c']) + >>> np.char.less(x1, 'b') + array([True, False, False]) + + """ + return compare_chararrays(x1, x2, '<', True) + + +@set_module("numpy.char") +def multiply(a, i): + """ + Return (a * i), that is string multiple concatenation, + element-wise. + + Values in ``i`` of less than 0 are treated as 0 (which yields an + empty string). + + Parameters + ---------- + a : array_like, with `np.bytes_` or `np.str_` dtype + + i : array_like, with any integer dtype + + Returns + ------- + out : ndarray + Output array of str or unicode, depending on input types + + Notes + ----- + This is a thin wrapper around np.strings.multiply that raises + `ValueError` when ``i`` is not an integer. It only + exists for backwards-compatibility. + + Examples + -------- + >>> import numpy as np + >>> a = np.array(["a", "b", "c"]) + >>> np.strings.multiply(a, 3) + array(['aaa', 'bbb', 'ccc'], dtype='>> i = np.array([1, 2, 3]) + >>> np.strings.multiply(a, i) + array(['a', 'bb', 'ccc'], dtype='>> np.strings.multiply(np.array(['a']), i) + array(['a', 'aa', 'aaa'], dtype='>> a = np.array(['a', 'b', 'c', 'd', 'e', 'f']).reshape((2, 3)) + >>> np.strings.multiply(a, 3) + array([['aaa', 'bbb', 'ccc'], + ['ddd', 'eee', 'fff']], dtype='>> np.strings.multiply(a, i) + array([['a', 'bb', 'ccc'], + ['d', 'ee', 'fff']], dtype='>> import numpy as np + >>> x = np.array(["Numpy is nice!"]) + >>> np.char.partition(x, " ") + array([['Numpy', ' ', 'is nice!']], dtype='>> import numpy as np + >>> a = np.array(['aAaAaA', ' aA ', 'abBABba']) + >>> np.char.rpartition(a, 'A') + array([['aAaAa', 'A', ''], + [' a', 'A', ' '], + ['abB', 'A', 'Bba']], dtype='= 2`` and ``order='F'``, in which case `strides` + is in "Fortran order". + + Methods + ------- + astype + argsort + copy + count + decode + dump + dumps + encode + endswith + expandtabs + fill + find + flatten + getfield + index + isalnum + isalpha + isdecimal + isdigit + islower + isnumeric + isspace + istitle + isupper + item + join + ljust + lower + lstrip + nonzero + put + ravel + repeat + replace + reshape + resize + rfind + rindex + rjust + rsplit + rstrip + searchsorted + setfield + setflags + sort + split + splitlines + squeeze + startswith + strip + swapaxes + swapcase + take + title + tofile + tolist + translate + transpose + upper + view + zfill + + Parameters + ---------- + shape : tuple + Shape of the array. + itemsize : int, optional + Length of each array element, in number of characters. Default is 1. + unicode : bool, optional + Are the array elements of type unicode (True) or string (False). + Default is False. + buffer : object exposing the buffer interface or str, optional + Memory address of the start of the array data. Default is None, + in which case a new array is created. + offset : int, optional + Fixed stride displacement from the beginning of an axis? + Default is 0. Needs to be >=0. + strides : array_like of ints, optional + Strides for the array (see `~numpy.ndarray.strides` for + full description). Default is None. + order : {'C', 'F'}, optional + The order in which the array data is stored in memory: 'C' -> + "row major" order (the default), 'F' -> "column major" + (Fortran) order. + + Examples + -------- + >>> import numpy as np + >>> charar = np.char.chararray((3, 3)) + >>> charar[:] = 'a' + >>> charar + chararray([[b'a', b'a', b'a'], + [b'a', b'a', b'a'], + [b'a', b'a', b'a']], dtype='|S1') + + >>> charar = np.char.chararray(charar.shape, itemsize=5) + >>> charar[:] = 'abc' + >>> charar + chararray([[b'abc', b'abc', b'abc'], + [b'abc', b'abc', b'abc'], + [b'abc', b'abc', b'abc']], dtype='|S5') + + """ + def __new__(subtype, shape, itemsize=1, unicode=False, buffer=None, + offset=0, strides=None, order='C'): + if unicode: + dtype = str_ + else: + dtype = bytes_ + + # force itemsize to be a Python int, since using NumPy integer + # types results in itemsize.itemsize being used as the size of + # strings in the new array. + itemsize = int(itemsize) + + if isinstance(buffer, str): + # unicode objects do not have the buffer interface + filler = buffer + buffer = None + else: + filler = None + + if buffer is None: + self = ndarray.__new__(subtype, shape, (dtype, itemsize), + order=order) + else: + self = ndarray.__new__(subtype, shape, (dtype, itemsize), + buffer=buffer, + offset=offset, strides=strides, + order=order) + if filler is not None: + self[...] = filler + + return self + + def __array_wrap__(self, arr, context=None, return_scalar=False): + # When calling a ufunc (and some other functions), we return a + # chararray if the ufunc output is a string-like array, + # or an ndarray otherwise + if arr.dtype.char in "SUbc": + return arr.view(type(self)) + return arr + + def __array_finalize__(self, obj): + # The b is a special case because it is used for reconstructing. + if self.dtype.char not in 'VSUbc': + raise ValueError("Can only create a chararray from string data.") + + def __getitem__(self, obj): + val = ndarray.__getitem__(self, obj) + if isinstance(val, character): + return val.rstrip() + return val + + # IMPLEMENTATION NOTE: Most of the methods of this class are + # direct delegations to the free functions in this module. + # However, those that return an array of strings should instead + # return a chararray, so some extra wrapping is required. + + def __eq__(self, other): + """ + Return (self == other) element-wise. + + See Also + -------- + equal + """ + return equal(self, other) + + def __ne__(self, other): + """ + Return (self != other) element-wise. + + See Also + -------- + not_equal + """ + return not_equal(self, other) + + def __ge__(self, other): + """ + Return (self >= other) element-wise. + + See Also + -------- + greater_equal + """ + return greater_equal(self, other) + + def __le__(self, other): + """ + Return (self <= other) element-wise. + + See Also + -------- + less_equal + """ + return less_equal(self, other) + + def __gt__(self, other): + """ + Return (self > other) element-wise. + + See Also + -------- + greater + """ + return greater(self, other) + + def __lt__(self, other): + """ + Return (self < other) element-wise. + + See Also + -------- + less + """ + return less(self, other) + + def __add__(self, other): + """ + Return (self + other), that is string concatenation, + element-wise for a pair of array_likes of str or unicode. + + See Also + -------- + add + """ + return add(self, other) + + def __radd__(self, other): + """ + Return (other + self), that is string concatenation, + element-wise for a pair of array_likes of `bytes_` or `str_`. + + See Also + -------- + add + """ + return add(other, self) + + def __mul__(self, i): + """ + Return (self * i), that is string multiple concatenation, + element-wise. + + See Also + -------- + multiply + """ + return asarray(multiply(self, i)) + + def __rmul__(self, i): + """ + Return (self * i), that is string multiple concatenation, + element-wise. + + See Also + -------- + multiply + """ + return asarray(multiply(self, i)) + + def __mod__(self, i): + """ + Return (self % i), that is pre-Python 2.6 string formatting + (interpolation), element-wise for a pair of array_likes of `bytes_` + or `str_`. + + See Also + -------- + mod + """ + return asarray(mod(self, i)) + + def __rmod__(self, other): + return NotImplemented + + def argsort(self, axis=-1, kind=None, order=None, *, stable=None): + """ + Return the indices that sort the array lexicographically. + + For full documentation see `numpy.argsort`, for which this method is + in fact merely a "thin wrapper." + + Examples + -------- + >>> c = np.array(['a1b c', '1b ca', 'b ca1', 'Ca1b'], 'S5') + >>> c = c.view(np.char.chararray); c + chararray(['a1b c', '1b ca', 'b ca1', 'Ca1b'], + dtype='|S5') + >>> c[c.argsort()] + chararray(['1b ca', 'Ca1b', 'a1b c', 'b ca1'], + dtype='|S5') + + """ + return self.__array__().argsort(axis, kind, order, stable=stable) + argsort.__doc__ = ndarray.argsort.__doc__ + + def capitalize(self): + """ + Return a copy of `self` with only the first character of each element + capitalized. + + See Also + -------- + char.capitalize + + """ + return asarray(capitalize(self)) + + def center(self, width, fillchar=' '): + """ + Return a copy of `self` with its elements centered in a + string of length `width`. + + See Also + -------- + center + """ + return asarray(center(self, width, fillchar)) + + def count(self, sub, start=0, end=None): + """ + Returns an array with the number of non-overlapping occurrences of + substring `sub` in the range [`start`, `end`]. + + See Also + -------- + char.count + + """ + return count(self, sub, start, end) + + def decode(self, encoding=None, errors=None): + """ + Calls ``bytes.decode`` element-wise. + + See Also + -------- + char.decode + + """ + return decode(self, encoding, errors) + + def encode(self, encoding=None, errors=None): + """ + Calls :meth:`str.encode` element-wise. + + See Also + -------- + char.encode + + """ + return encode(self, encoding, errors) + + def endswith(self, suffix, start=0, end=None): + """ + Returns a boolean array which is `True` where the string element + in `self` ends with `suffix`, otherwise `False`. + + See Also + -------- + char.endswith + + """ + return endswith(self, suffix, start, end) + + def expandtabs(self, tabsize=8): + """ + Return a copy of each string element where all tab characters are + replaced by one or more spaces. + + See Also + -------- + char.expandtabs + + """ + return asarray(expandtabs(self, tabsize)) + + def find(self, sub, start=0, end=None): + """ + For each element, return the lowest index in the string where + substring `sub` is found. + + See Also + -------- + char.find + + """ + return find(self, sub, start, end) + + def index(self, sub, start=0, end=None): + """ + Like `find`, but raises :exc:`ValueError` when the substring is not + found. + + See Also + -------- + char.index + + """ + return index(self, sub, start, end) + + def isalnum(self): + """ + Returns true for each element if all characters in the string + are alphanumeric and there is at least one character, false + otherwise. + + See Also + -------- + char.isalnum + + """ + return isalnum(self) + + def isalpha(self): + """ + Returns true for each element if all characters in the string + are alphabetic and there is at least one character, false + otherwise. + + See Also + -------- + char.isalpha + + """ + return isalpha(self) + + def isdigit(self): + """ + Returns true for each element if all characters in the string are + digits and there is at least one character, false otherwise. + + See Also + -------- + char.isdigit + + """ + return isdigit(self) + + def islower(self): + """ + Returns true for each element if all cased characters in the + string are lowercase and there is at least one cased character, + false otherwise. + + See Also + -------- + char.islower + + """ + return islower(self) + + def isspace(self): + """ + Returns true for each element if there are only whitespace + characters in the string and there is at least one character, + false otherwise. + + See Also + -------- + char.isspace + + """ + return isspace(self) + + def istitle(self): + """ + Returns true for each element if the element is a titlecased + string and there is at least one character, false otherwise. + + See Also + -------- + char.istitle + + """ + return istitle(self) + + def isupper(self): + """ + Returns true for each element if all cased characters in the + string are uppercase and there is at least one character, false + otherwise. + + See Also + -------- + char.isupper + + """ + return isupper(self) + + def join(self, seq): + """ + Return a string which is the concatenation of the strings in the + sequence `seq`. + + See Also + -------- + char.join + + """ + return join(self, seq) + + def ljust(self, width, fillchar=' '): + """ + Return an array with the elements of `self` left-justified in a + string of length `width`. + + See Also + -------- + char.ljust + + """ + return asarray(ljust(self, width, fillchar)) + + def lower(self): + """ + Return an array with the elements of `self` converted to + lowercase. + + See Also + -------- + char.lower + + """ + return asarray(lower(self)) + + def lstrip(self, chars=None): + """ + For each element in `self`, return a copy with the leading characters + removed. + + See Also + -------- + char.lstrip + + """ + return lstrip(self, chars) + + def partition(self, sep): + """ + Partition each element in `self` around `sep`. + + See Also + -------- + partition + """ + return asarray(partition(self, sep)) + + def replace(self, old, new, count=None): + """ + For each element in `self`, return a copy of the string with all + occurrences of substring `old` replaced by `new`. + + See Also + -------- + char.replace + + """ + return replace(self, old, new, count if count is not None else -1) + + def rfind(self, sub, start=0, end=None): + """ + For each element in `self`, return the highest index in the string + where substring `sub` is found, such that `sub` is contained + within [`start`, `end`]. + + See Also + -------- + char.rfind + + """ + return rfind(self, sub, start, end) + + def rindex(self, sub, start=0, end=None): + """ + Like `rfind`, but raises :exc:`ValueError` when the substring `sub` is + not found. + + See Also + -------- + char.rindex + + """ + return rindex(self, sub, start, end) + + def rjust(self, width, fillchar=' '): + """ + Return an array with the elements of `self` + right-justified in a string of length `width`. + + See Also + -------- + char.rjust + + """ + return asarray(rjust(self, width, fillchar)) + + def rpartition(self, sep): + """ + Partition each element in `self` around `sep`. + + See Also + -------- + rpartition + """ + return asarray(rpartition(self, sep)) + + def rsplit(self, sep=None, maxsplit=None): + """ + For each element in `self`, return a list of the words in + the string, using `sep` as the delimiter string. + + See Also + -------- + char.rsplit + + """ + return rsplit(self, sep, maxsplit) + + def rstrip(self, chars=None): + """ + For each element in `self`, return a copy with the trailing + characters removed. + + See Also + -------- + char.rstrip + + """ + return rstrip(self, chars) + + def split(self, sep=None, maxsplit=None): + """ + For each element in `self`, return a list of the words in the + string, using `sep` as the delimiter string. + + See Also + -------- + char.split + + """ + return split(self, sep, maxsplit) + + def splitlines(self, keepends=None): + """ + For each element in `self`, return a list of the lines in the + element, breaking at line boundaries. + + See Also + -------- + char.splitlines + + """ + return splitlines(self, keepends) + + def startswith(self, prefix, start=0, end=None): + """ + Returns a boolean array which is `True` where the string element + in `self` starts with `prefix`, otherwise `False`. + + See Also + -------- + char.startswith + + """ + return startswith(self, prefix, start, end) + + def strip(self, chars=None): + """ + For each element in `self`, return a copy with the leading and + trailing characters removed. + + See Also + -------- + char.strip + + """ + return strip(self, chars) + + def swapcase(self): + """ + For each element in `self`, return a copy of the string with + uppercase characters converted to lowercase and vice versa. + + See Also + -------- + char.swapcase + + """ + return asarray(swapcase(self)) + + def title(self): + """ + For each element in `self`, return a titlecased version of the + string: words start with uppercase characters, all remaining cased + characters are lowercase. + + See Also + -------- + char.title + + """ + return asarray(title(self)) + + def translate(self, table, deletechars=None): + """ + For each element in `self`, return a copy of the string where + all characters occurring in the optional argument + `deletechars` are removed, and the remaining characters have + been mapped through the given translation table. + + See Also + -------- + char.translate + + """ + return asarray(translate(self, table, deletechars)) + + def upper(self): + """ + Return an array with the elements of `self` converted to + uppercase. + + See Also + -------- + char.upper + + """ + return asarray(upper(self)) + + def zfill(self, width): + """ + Return the numeric string left-filled with zeros in a string of + length `width`. + + See Also + -------- + char.zfill + + """ + return asarray(zfill(self, width)) + + def isnumeric(self): + """ + For each element in `self`, return True if there are only + numeric characters in the element. + + See Also + -------- + char.isnumeric + + """ + return isnumeric(self) + + def isdecimal(self): + """ + For each element in `self`, return True if there are only + decimal characters in the element. + + See Also + -------- + char.isdecimal + + """ + return isdecimal(self) + + +@set_module("numpy.char") +def array(obj, itemsize=None, copy=True, unicode=None, order=None): + """ + Create a `~numpy.char.chararray`. + + .. note:: + This class is provided for numarray backward-compatibility. + New code (not concerned with numarray compatibility) should use + arrays of type `bytes_` or `str_` and use the free functions + in :mod:`numpy.char` for fast vectorized string operations instead. + + Versus a NumPy array of dtype `bytes_` or `str_`, this + class adds the following functionality: + + 1) values automatically have whitespace removed from the end + when indexed + + 2) comparison operators automatically remove whitespace from the + end when comparing values + + 3) vectorized string operations are provided as methods + (e.g. `chararray.endswith `) + and infix operators (e.g. ``+, *, %``) + + Parameters + ---------- + obj : array of str or unicode-like + + itemsize : int, optional + `itemsize` is the number of characters per scalar in the + resulting array. If `itemsize` is None, and `obj` is an + object array or a Python list, the `itemsize` will be + automatically determined. If `itemsize` is provided and `obj` + is of type str or unicode, then the `obj` string will be + chunked into `itemsize` pieces. + + copy : bool, optional + If true (default), then the object is copied. Otherwise, a copy + will only be made if ``__array__`` returns a copy, if obj is a + nested sequence, or if a copy is needed to satisfy any of the other + requirements (`itemsize`, unicode, `order`, etc.). + + unicode : bool, optional + When true, the resulting `~numpy.char.chararray` can contain Unicode + characters, when false only 8-bit characters. If unicode is + None and `obj` is one of the following: + + - a `~numpy.char.chararray`, + - an ndarray of type :class:`str_` or :class:`bytes_` + - a Python :class:`str` or :class:`bytes` object, + + then the unicode setting of the output array will be + automatically determined. + + order : {'C', 'F', 'A'}, optional + Specify the order of the array. If order is 'C' (default), then the + array will be in C-contiguous order (last-index varies the + fastest). If order is 'F', then the returned array + will be in Fortran-contiguous order (first-index varies the + fastest). If order is 'A', then the returned array may + be in any order (either C-, Fortran-contiguous, or even + discontiguous). + + Examples + -------- + + >>> import numpy as np + >>> char_array = np.char.array(['hello', 'world', 'numpy','array']) + >>> char_array + chararray(['hello', 'world', 'numpy', 'array'], dtype='`) + and infix operators (e.g. ``+``, ``*``, ``%``) + + Parameters + ---------- + obj : array of str or unicode-like + + itemsize : int, optional + `itemsize` is the number of characters per scalar in the + resulting array. If `itemsize` is None, and `obj` is an + object array or a Python list, the `itemsize` will be + automatically determined. If `itemsize` is provided and `obj` + is of type str or unicode, then the `obj` string will be + chunked into `itemsize` pieces. + + unicode : bool, optional + When true, the resulting `~numpy.char.chararray` can contain Unicode + characters, when false only 8-bit characters. If unicode is + None and `obj` is one of the following: + + - a `~numpy.char.chararray`, + - an ndarray of type `str_` or `unicode_` + - a Python str or unicode object, + + then the unicode setting of the output array will be + automatically determined. + + order : {'C', 'F'}, optional + Specify the order of the array. If order is 'C' (default), then the + array will be in C-contiguous order (last-index varies the + fastest). If order is 'F', then the returned array + will be in Fortran-contiguous order (first-index varies the + fastest). + + Examples + -------- + >>> import numpy as np + >>> np.char.asarray(['hello', 'world']) + chararray(['hello', 'world'], dtype=' _CharArray[bytes_]: ... + @overload + def __new__( + subtype, + shape: _ShapeLike, + itemsize: SupportsIndex | SupportsInt, + unicode: L[True], + buffer: Buffer | np.ndarray | None = None, + offset: SupportsIndex = 0, + strides: _ShapeLike | None = None, + order: _OrderKACF = "C", + ) -> _CharArray[str_]: ... + @overload + def __new__( + subtype, + shape: _ShapeLike, + itemsize: SupportsIndex | SupportsInt = 1, + *, + unicode: L[True], + buffer: Buffer | np.ndarray | None = None, + offset: SupportsIndex = 0, + strides: _ShapeLike | None = None, + order: _OrderKACF = "C", + ) -> _CharArray[str_]: ... + + def __array_finalize__(self, obj: object) -> None: ... + def __mul__(self, other: i_co) -> chararray[_AnyShape, _CharDTypeT_co]: ... # type: ignore[override] + def __rmul__(self, other: i_co) -> chararray[_AnyShape, _CharDTypeT_co]: ... # type: ignore[override] + def __mod__(self, i: Any) -> chararray[_AnyShape, _CharDTypeT_co]: ... # type: ignore[override] + + @overload # type: ignore[override] + def __eq__( + self: _CharArray[str_], + other: U_co, + ) -> NDArray[np.bool]: ... + @overload + def __eq__( + self: _CharArray[bytes_], + other: S_co, + ) -> NDArray[np.bool]: ... + + @overload # type: ignore[override] + def __ne__( + self: _CharArray[str_], + other: U_co, + ) -> NDArray[np.bool]: ... + @overload + def __ne__( + self: _CharArray[bytes_], + other: S_co, + ) -> NDArray[np.bool]: ... + + @overload # type: ignore[override] + def __ge__( + self: _CharArray[str_], + other: U_co, + ) -> NDArray[np.bool]: ... + @overload + def __ge__( + self: _CharArray[bytes_], + other: S_co, + ) -> NDArray[np.bool]: ... + + @overload # type: ignore[override] + def __le__( + self: _CharArray[str_], + other: U_co, + ) -> NDArray[np.bool]: ... + @overload + def __le__( + self: _CharArray[bytes_], + other: S_co, + ) -> NDArray[np.bool]: ... + + @overload # type: ignore[override] + def __gt__( + self: _CharArray[str_], + other: U_co, + ) -> NDArray[np.bool]: ... + @overload + def __gt__( + self: _CharArray[bytes_], + other: S_co, + ) -> NDArray[np.bool]: ... + + @overload # type: ignore[override] + def __lt__( + self: _CharArray[str_], + other: U_co, + ) -> NDArray[np.bool]: ... + @overload + def __lt__( + self: _CharArray[bytes_], + other: S_co, + ) -> NDArray[np.bool]: ... + + @overload # type: ignore[override] + def __add__( + self: _CharArray[str_], + other: U_co, + ) -> _CharArray[str_]: ... + @overload + def __add__( + self: _CharArray[bytes_], + other: S_co, + ) -> _CharArray[bytes_]: ... + + @overload # type: ignore[override] + def __radd__( + self: _CharArray[str_], + other: U_co, + ) -> _CharArray[str_]: ... + @overload + def __radd__( + self: _CharArray[bytes_], + other: S_co, + ) -> _CharArray[bytes_]: ... + + @overload + def center( + self: _CharArray[str_], + width: i_co, + fillchar: U_co = " ", + ) -> _CharArray[str_]: ... + @overload + def center( + self: _CharArray[bytes_], + width: i_co, + fillchar: str | S_co = " ", + ) -> _CharArray[bytes_]: ... + + @overload + def count( + self: _CharArray[str_], + sub: U_co, + start: i_co = 0, + end: i_co | None = None, + ) -> NDArray[int_]: ... + @overload + def count( + self: _CharArray[bytes_], + sub: S_co, + start: i_co = 0, + end: i_co | None = None, + ) -> NDArray[int_]: ... + + def decode( + self: _CharArray[bytes_], + encoding: str | None = None, + errors: str | None = None, + ) -> _CharArray[str_]: ... + + def encode( + self: _CharArray[str_], + encoding: str | None = None, + errors: str | None = None, + ) -> _CharArray[bytes_]: ... + + @overload + def endswith( + self: _CharArray[str_], + suffix: U_co, + start: i_co = 0, + end: i_co | None = None, + ) -> NDArray[np.bool]: ... + @overload + def endswith( + self: _CharArray[bytes_], + suffix: S_co, + start: i_co = 0, + end: i_co | None = None, + ) -> NDArray[np.bool]: ... + + def expandtabs( + self, + tabsize: i_co = 8, + ) -> Self: ... + + @overload + def find( + self: _CharArray[str_], + sub: U_co, + start: i_co = 0, + end: i_co | None = None, + ) -> NDArray[int_]: ... + @overload + def find( + self: _CharArray[bytes_], + sub: S_co, + start: i_co = 0, + end: i_co | None = None, + ) -> NDArray[int_]: ... + + @overload + def index( + self: _CharArray[str_], + sub: U_co, + start: i_co = 0, + end: i_co | None = None, + ) -> NDArray[int_]: ... + @overload + def index( + self: _CharArray[bytes_], + sub: S_co, + start: i_co = 0, + end: i_co | None = None, + ) -> NDArray[int_]: ... + + @overload + def join( + self: _CharArray[str_], + seq: U_co, + ) -> _CharArray[str_]: ... + @overload + def join( + self: _CharArray[bytes_], + seq: S_co, + ) -> _CharArray[bytes_]: ... + + @overload + def ljust( + self: _CharArray[str_], + width: i_co, + fillchar: U_co = " ", + ) -> _CharArray[str_]: ... + @overload + def ljust( + self: _CharArray[bytes_], + width: i_co, + fillchar: str | S_co = " ", + ) -> _CharArray[bytes_]: ... + + @overload + def lstrip( + self: _CharArray[str_], + chars: U_co | None = None, + ) -> _CharArray[str_]: ... + @overload + def lstrip( + self: _CharArray[bytes_], + chars: S_co | None = None, + ) -> _CharArray[bytes_]: ... + + @overload # type: ignore[override] + def partition( + self: _CharArray[str_], + sep: U_co, + ) -> _CharArray[str_]: ... + @overload + def partition( + self: _CharArray[bytes_], + sep: S_co, + ) -> _CharArray[bytes_]: ... + + @overload + def replace( + self: _CharArray[str_], + old: U_co, + new: U_co, + count: i_co | None = None, + ) -> _CharArray[str_]: ... + @overload + def replace( + self: _CharArray[bytes_], + old: S_co, + new: S_co, + count: i_co | None = None, + ) -> _CharArray[bytes_]: ... + + @overload + def rfind( + self: _CharArray[str_], + sub: U_co, + start: i_co = 0, + end: i_co | None = None, + ) -> NDArray[int_]: ... + @overload + def rfind( + self: _CharArray[bytes_], + sub: S_co, + start: i_co = 0, + end: i_co | None = None, + ) -> NDArray[int_]: ... + + @overload + def rindex( + self: _CharArray[str_], + sub: U_co, + start: i_co = 0, + end: i_co | None = None, + ) -> NDArray[int_]: ... + @overload + def rindex( + self: _CharArray[bytes_], + sub: S_co, + start: i_co = 0, + end: i_co | None = None, + ) -> NDArray[int_]: ... + + @overload + def rjust( + self: _CharArray[str_], + width: i_co, + fillchar: U_co = " ", + ) -> _CharArray[str_]: ... + @overload + def rjust( + self: _CharArray[bytes_], + width: i_co, + fillchar: str | S_co = " ", + ) -> _CharArray[bytes_]: ... + + @overload + def rpartition( + self: _CharArray[str_], + sep: U_co, + ) -> _CharArray[str_]: ... + @overload + def rpartition( + self: _CharArray[bytes_], + sep: S_co, + ) -> _CharArray[bytes_]: ... + + @overload + def rsplit( + self: _CharArray[str_], + sep: U_co | None = None, + maxsplit: i_co | None = None, + ) -> NDArray[object_]: ... + @overload + def rsplit( + self: _CharArray[bytes_], + sep: S_co | None = None, + maxsplit: i_co | None = None, + ) -> NDArray[object_]: ... + + @overload + def rstrip( + self: _CharArray[str_], + chars: U_co | None = None, + ) -> _CharArray[str_]: ... + @overload + def rstrip( + self: _CharArray[bytes_], + chars: S_co | None = None, + ) -> _CharArray[bytes_]: ... + + @overload + def split( + self: _CharArray[str_], + sep: U_co | None = None, + maxsplit: i_co | None = None, + ) -> NDArray[object_]: ... + @overload + def split( + self: _CharArray[bytes_], + sep: S_co | None = None, + maxsplit: i_co | None = None, + ) -> NDArray[object_]: ... + + def splitlines(self, keepends: b_co | None = None) -> NDArray[object_]: ... + + @overload + def startswith( + self: _CharArray[str_], + prefix: U_co, + start: i_co = 0, + end: i_co | None = None, + ) -> NDArray[np.bool]: ... + @overload + def startswith( + self: _CharArray[bytes_], + prefix: S_co, + start: i_co = 0, + end: i_co | None = None, + ) -> NDArray[np.bool]: ... + + @overload + def strip( + self: _CharArray[str_], + chars: U_co | None = None, + ) -> _CharArray[str_]: ... + @overload + def strip( + self: _CharArray[bytes_], + chars: S_co | None = None, + ) -> _CharArray[bytes_]: ... + + @overload + def translate( + self: _CharArray[str_], + table: U_co, + deletechars: U_co | None = None, + ) -> _CharArray[str_]: ... + @overload + def translate( + self: _CharArray[bytes_], + table: S_co, + deletechars: S_co | None = None, + ) -> _CharArray[bytes_]: ... + + def zfill(self, width: i_co) -> Self: ... + def capitalize(self) -> Self: ... + def title(self) -> Self: ... + def swapcase(self) -> Self: ... + def lower(self) -> Self: ... + def upper(self) -> Self: ... + def isalnum(self) -> ndarray[_ShapeT_co, dtype[np.bool]]: ... + def isalpha(self) -> ndarray[_ShapeT_co, dtype[np.bool]]: ... + def isdigit(self) -> ndarray[_ShapeT_co, dtype[np.bool]]: ... + def islower(self) -> ndarray[_ShapeT_co, dtype[np.bool]]: ... + def isspace(self) -> ndarray[_ShapeT_co, dtype[np.bool]]: ... + def istitle(self) -> ndarray[_ShapeT_co, dtype[np.bool]]: ... + def isupper(self) -> ndarray[_ShapeT_co, dtype[np.bool]]: ... + def isnumeric(self) -> ndarray[_ShapeT_co, dtype[np.bool]]: ... + def isdecimal(self) -> ndarray[_ShapeT_co, dtype[np.bool]]: ... + +# Comparison +@overload +def equal(x1: U_co, x2: U_co) -> NDArray[np.bool]: ... +@overload +def equal(x1: S_co, x2: S_co) -> NDArray[np.bool]: ... +@overload +def equal(x1: T_co, x2: T_co) -> NDArray[np.bool]: ... + +@overload +def not_equal(x1: U_co, x2: U_co) -> NDArray[np.bool]: ... +@overload +def not_equal(x1: S_co, x2: S_co) -> NDArray[np.bool]: ... +@overload +def not_equal(x1: T_co, x2: T_co) -> NDArray[np.bool]: ... + +@overload +def greater_equal(x1: U_co, x2: U_co) -> NDArray[np.bool]: ... +@overload +def greater_equal(x1: S_co, x2: S_co) -> NDArray[np.bool]: ... +@overload +def greater_equal(x1: T_co, x2: T_co) -> NDArray[np.bool]: ... + +@overload +def less_equal(x1: U_co, x2: U_co) -> NDArray[np.bool]: ... +@overload +def less_equal(x1: S_co, x2: S_co) -> NDArray[np.bool]: ... +@overload +def less_equal(x1: T_co, x2: T_co) -> NDArray[np.bool]: ... + +@overload +def greater(x1: U_co, x2: U_co) -> NDArray[np.bool]: ... +@overload +def greater(x1: S_co, x2: S_co) -> NDArray[np.bool]: ... +@overload +def greater(x1: T_co, x2: T_co) -> NDArray[np.bool]: ... + +@overload +def less(x1: U_co, x2: U_co) -> NDArray[np.bool]: ... +@overload +def less(x1: S_co, x2: S_co) -> NDArray[np.bool]: ... +@overload +def less(x1: T_co, x2: T_co) -> NDArray[np.bool]: ... + +@overload +def add(x1: U_co, x2: U_co) -> NDArray[np.str_]: ... +@overload +def add(x1: S_co, x2: S_co) -> NDArray[np.bytes_]: ... +@overload +def add(x1: _StringDTypeSupportsArray, x2: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def add(x1: T_co, x2: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def multiply(a: U_co, i: i_co) -> NDArray[np.str_]: ... +@overload +def multiply(a: S_co, i: i_co) -> NDArray[np.bytes_]: ... +@overload +def multiply(a: _StringDTypeSupportsArray, i: i_co) -> _StringDTypeArray: ... +@overload +def multiply(a: T_co, i: i_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def mod(a: U_co, value: Any) -> NDArray[np.str_]: ... +@overload +def mod(a: S_co, value: Any) -> NDArray[np.bytes_]: ... +@overload +def mod(a: _StringDTypeSupportsArray, value: Any) -> _StringDTypeArray: ... +@overload +def mod(a: T_co, value: Any) -> _StringDTypeOrUnicodeArray: ... + +@overload +def capitalize(a: U_co) -> NDArray[str_]: ... +@overload +def capitalize(a: S_co) -> NDArray[bytes_]: ... +@overload +def capitalize(a: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def capitalize(a: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def center(a: U_co, width: i_co, fillchar: U_co = " ") -> NDArray[str_]: ... +@overload +def center(a: S_co, width: i_co, fillchar: str | S_co = " ") -> NDArray[bytes_]: ... +@overload +def center(a: _StringDTypeSupportsArray, width: i_co, fillchar: str | _StringDTypeSupportsArray = " ") -> _StringDTypeArray: ... +@overload +def center(a: T_co, width: i_co, fillchar: T_co = " ") -> _StringDTypeOrUnicodeArray: ... + +def decode( + a: S_co, + encoding: str | None = None, + errors: str | None = None, +) -> NDArray[str_]: ... +def encode( + a: U_co | T_co, + encoding: str | None = None, + errors: str | None = None, +) -> NDArray[bytes_]: ... + +@overload +def expandtabs(a: U_co, tabsize: i_co = 8) -> NDArray[str_]: ... +@overload +def expandtabs(a: S_co, tabsize: i_co = 8) -> NDArray[bytes_]: ... +@overload +def expandtabs(a: _StringDTypeSupportsArray, tabsize: i_co = 8) -> _StringDTypeArray: ... +@overload +def expandtabs(a: T_co, tabsize: i_co = 8) -> _StringDTypeOrUnicodeArray: ... + +@overload +def join(sep: U_co, seq: U_co) -> NDArray[str_]: ... +@overload +def join(sep: S_co, seq: S_co) -> NDArray[bytes_]: ... +@overload +def join(sep: _StringDTypeSupportsArray, seq: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def join(sep: T_co, seq: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def ljust(a: U_co, width: i_co, fillchar: U_co = " ") -> NDArray[str_]: ... +@overload +def ljust(a: S_co, width: i_co, fillchar: str | S_co = " ") -> NDArray[bytes_]: ... +@overload +def ljust(a: _StringDTypeSupportsArray, width: i_co, fillchar: str | _StringDTypeSupportsArray = " ") -> _StringDTypeArray: ... +@overload +def ljust(a: T_co, width: i_co, fillchar: T_co = " ") -> _StringDTypeOrUnicodeArray: ... + +@overload +def lower(a: U_co) -> NDArray[str_]: ... +@overload +def lower(a: S_co) -> NDArray[bytes_]: ... +@overload +def lower(a: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def lower(a: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def lstrip(a: U_co, chars: U_co | None = None) -> NDArray[str_]: ... +@overload +def lstrip(a: S_co, chars: S_co | None = None) -> NDArray[bytes_]: ... +@overload +def lstrip(a: _StringDTypeSupportsArray, chars: _StringDTypeSupportsArray | None = None) -> _StringDTypeArray: ... +@overload +def lstrip(a: T_co, chars: T_co | None = None) -> _StringDTypeOrUnicodeArray: ... + +@overload +def partition(a: U_co, sep: U_co) -> NDArray[str_]: ... +@overload +def partition(a: S_co, sep: S_co) -> NDArray[bytes_]: ... +@overload +def partition(a: _StringDTypeSupportsArray, sep: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def partition(a: T_co, sep: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def replace( + a: U_co, + old: U_co, + new: U_co, + count: i_co | None = -1, +) -> NDArray[str_]: ... +@overload +def replace( + a: S_co, + old: S_co, + new: S_co, + count: i_co | None = -1, +) -> NDArray[bytes_]: ... +@overload +def replace( + a: _StringDTypeSupportsArray, + old: _StringDTypeSupportsArray, + new: _StringDTypeSupportsArray, + count: i_co = -1, +) -> _StringDTypeArray: ... +@overload +def replace( + a: T_co, + old: T_co, + new: T_co, + count: i_co = -1, +) -> _StringDTypeOrUnicodeArray: ... + +@overload +def rjust( + a: U_co, + width: i_co, + fillchar: U_co = " ", +) -> NDArray[str_]: ... +@overload +def rjust( + a: S_co, + width: i_co, + fillchar: str | S_co = " ", +) -> NDArray[bytes_]: ... +@overload +def rjust( + a: _StringDTypeSupportsArray, + width: i_co, + fillchar: str | _StringDTypeSupportsArray = " ", +) -> _StringDTypeArray: ... +@overload +def rjust( + a: T_co, + width: i_co, + fillchar: T_co = " ", +) -> _StringDTypeOrUnicodeArray: ... + +@overload +def rpartition(a: U_co, sep: U_co) -> NDArray[str_]: ... +@overload +def rpartition(a: S_co, sep: S_co) -> NDArray[bytes_]: ... +@overload +def rpartition(a: _StringDTypeSupportsArray, sep: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def rpartition(a: T_co, sep: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def rsplit( + a: U_co, + sep: U_co | None = None, + maxsplit: i_co | None = None, +) -> NDArray[object_]: ... +@overload +def rsplit( + a: S_co, + sep: S_co | None = None, + maxsplit: i_co | None = None, +) -> NDArray[object_]: ... +@overload +def rsplit( + a: _StringDTypeSupportsArray, + sep: _StringDTypeSupportsArray | None = None, + maxsplit: i_co | None = None, +) -> NDArray[object_]: ... +@overload +def rsplit( + a: T_co, + sep: T_co | None = None, + maxsplit: i_co | None = None, +) -> NDArray[object_]: ... + +@overload +def rstrip(a: U_co, chars: U_co | None = None) -> NDArray[str_]: ... +@overload +def rstrip(a: S_co, chars: S_co | None = None) -> NDArray[bytes_]: ... +@overload +def rstrip(a: _StringDTypeSupportsArray, chars: _StringDTypeSupportsArray | None = None) -> _StringDTypeArray: ... +@overload +def rstrip(a: T_co, chars: T_co | None = None) -> _StringDTypeOrUnicodeArray: ... + +@overload +def split( + a: U_co, + sep: U_co | None = None, + maxsplit: i_co | None = None, +) -> NDArray[object_]: ... +@overload +def split( + a: S_co, + sep: S_co | None = None, + maxsplit: i_co | None = None, +) -> NDArray[object_]: ... +@overload +def split( + a: _StringDTypeSupportsArray, + sep: _StringDTypeSupportsArray | None = None, + maxsplit: i_co | None = None, +) -> NDArray[object_]: ... +@overload +def split( + a: T_co, + sep: T_co | None = None, + maxsplit: i_co | None = None, +) -> NDArray[object_]: ... + +def splitlines(a: UST_co, keepends: b_co | None = None) -> NDArray[np.object_]: ... + +@overload +def strip(a: U_co, chars: U_co | None = None) -> NDArray[str_]: ... +@overload +def strip(a: S_co, chars: S_co | None = None) -> NDArray[bytes_]: ... +@overload +def strip(a: _StringDTypeSupportsArray, chars: _StringDTypeSupportsArray | None = None) -> _StringDTypeArray: ... +@overload +def strip(a: T_co, chars: T_co | None = None) -> _StringDTypeOrUnicodeArray: ... + +@overload +def swapcase(a: U_co) -> NDArray[str_]: ... +@overload +def swapcase(a: S_co) -> NDArray[bytes_]: ... +@overload +def swapcase(a: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def swapcase(a: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def title(a: U_co) -> NDArray[str_]: ... +@overload +def title(a: S_co) -> NDArray[bytes_]: ... +@overload +def title(a: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def title(a: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def translate( + a: U_co, + table: str, + deletechars: str | None = None, +) -> NDArray[str_]: ... +@overload +def translate( + a: S_co, + table: str, + deletechars: str | None = None, +) -> NDArray[bytes_]: ... +@overload +def translate( + a: _StringDTypeSupportsArray, + table: str, + deletechars: str | None = None, +) -> _StringDTypeArray: ... +@overload +def translate( + a: T_co, + table: str, + deletechars: str | None = None, +) -> _StringDTypeOrUnicodeArray: ... + +@overload +def upper(a: U_co) -> NDArray[str_]: ... +@overload +def upper(a: S_co) -> NDArray[bytes_]: ... +@overload +def upper(a: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def upper(a: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def zfill(a: U_co, width: i_co) -> NDArray[str_]: ... +@overload +def zfill(a: S_co, width: i_co) -> NDArray[bytes_]: ... +@overload +def zfill(a: _StringDTypeSupportsArray, width: i_co) -> _StringDTypeArray: ... +@overload +def zfill(a: T_co, width: i_co) -> _StringDTypeOrUnicodeArray: ... + +# String information +@overload +def count( + a: U_co, + sub: U_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[int_]: ... +@overload +def count( + a: S_co, + sub: S_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[int_]: ... +@overload +def count( + a: T_co, + sub: T_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... + +@overload +def endswith( + a: U_co, + suffix: U_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.bool]: ... +@overload +def endswith( + a: S_co, + suffix: S_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.bool]: ... +@overload +def endswith( + a: T_co, + suffix: T_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.bool]: ... + +@overload +def find( + a: U_co, + sub: U_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[int_]: ... +@overload +def find( + a: S_co, + sub: S_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[int_]: ... +@overload +def find( + a: T_co, + sub: T_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... + +@overload +def index( + a: U_co, + sub: U_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[int_]: ... +@overload +def index( + a: S_co, + sub: S_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[int_]: ... +@overload +def index( + a: T_co, + sub: T_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... + +def isalpha(a: UST_co) -> NDArray[np.bool]: ... +def isalnum(a: UST_co) -> NDArray[np.bool]: ... +def isdecimal(a: U_co | T_co) -> NDArray[np.bool]: ... +def isdigit(a: UST_co) -> NDArray[np.bool]: ... +def islower(a: UST_co) -> NDArray[np.bool]: ... +def isnumeric(a: U_co | T_co) -> NDArray[np.bool]: ... +def isspace(a: UST_co) -> NDArray[np.bool]: ... +def istitle(a: UST_co) -> NDArray[np.bool]: ... +def isupper(a: UST_co) -> NDArray[np.bool]: ... + +@overload +def rfind( + a: U_co, + sub: U_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[int_]: ... +@overload +def rfind( + a: S_co, + sub: S_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[int_]: ... +@overload +def rfind( + a: T_co, + sub: T_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... + +@overload +def rindex( + a: U_co, + sub: U_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[int_]: ... +@overload +def rindex( + a: S_co, + sub: S_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[int_]: ... +@overload +def rindex( + a: T_co, + sub: T_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... + +@overload +def startswith( + a: U_co, + prefix: U_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.bool]: ... +@overload +def startswith( + a: S_co, + prefix: S_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.bool]: ... +@overload +def startswith( + a: T_co, + prefix: T_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.bool]: ... + +def str_len(A: UST_co) -> NDArray[int_]: ... + +# Overload 1 and 2: str- or bytes-based array-likes +# overload 3 and 4: arbitrary object with unicode=False (-> bytes_) +# overload 5 and 6: arbitrary object with unicode=True (-> str_) +# overload 7: arbitrary object with unicode=None (default) (-> str_ | bytes_) +@overload +def array( + obj: U_co, + itemsize: int | None = None, + copy: bool = True, + unicode: L[True] | None = None, + order: _OrderKACF = None, +) -> _CharArray[str_]: ... +@overload +def array( + obj: S_co, + itemsize: int | None = None, + copy: bool = True, + unicode: L[False] | None = None, + order: _OrderKACF = None, +) -> _CharArray[bytes_]: ... +@overload +def array( + obj: object, + itemsize: int | None, + copy: bool, + unicode: L[False], + order: _OrderKACF = None, +) -> _CharArray[bytes_]: ... +@overload +def array( + obj: object, + itemsize: int | None = None, + copy: bool = True, + *, + unicode: L[False], + order: _OrderKACF = None, +) -> _CharArray[bytes_]: ... +@overload +def array( + obj: object, + itemsize: int | None, + copy: bool, + unicode: L[True], + order: _OrderKACF = None, +) -> _CharArray[str_]: ... +@overload +def array( + obj: object, + itemsize: int | None = None, + copy: bool = True, + *, + unicode: L[True], + order: _OrderKACF = None, +) -> _CharArray[str_]: ... +@overload +def array( + obj: object, + itemsize: int | None = None, + copy: bool = True, + unicode: bool | None = None, + order: _OrderKACF = None, +) -> _CharArray[str_] | _CharArray[bytes_]: ... + +@overload +def asarray( + obj: U_co, + itemsize: int | None = None, + unicode: L[True] | None = None, + order: _OrderKACF = None, +) -> _CharArray[str_]: ... +@overload +def asarray( + obj: S_co, + itemsize: int | None = None, + unicode: L[False] | None = None, + order: _OrderKACF = None, +) -> _CharArray[bytes_]: ... +@overload +def asarray( + obj: object, + itemsize: int | None, + unicode: L[False], + order: _OrderKACF = None, +) -> _CharArray[bytes_]: ... +@overload +def asarray( + obj: object, + itemsize: int | None = None, + *, + unicode: L[False], + order: _OrderKACF = None, +) -> _CharArray[bytes_]: ... +@overload +def asarray( + obj: object, + itemsize: int | None, + unicode: L[True], + order: _OrderKACF = None, +) -> _CharArray[str_]: ... +@overload +def asarray( + obj: object, + itemsize: int | None = None, + *, + unicode: L[True], + order: _OrderKACF = None, +) -> _CharArray[str_]: ... +@overload +def asarray( + obj: object, + itemsize: int | None = None, + unicode: bool | None = None, + order: _OrderKACF = None, +) -> _CharArray[str_] | _CharArray[bytes_]: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/einsumfunc.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/einsumfunc.py new file mode 100644 index 0000000000000000000000000000000000000000..9461994f579592f2ca47bb375e15ad6adb74303c --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/einsumfunc.py @@ -0,0 +1,1650 @@ +""" +Implementation of optimized einsum. + +""" +import functools +import itertools +import operator + +from numpy._core.multiarray import c_einsum, matmul +from numpy._core.numeric import asanyarray, reshape +from numpy._core.overrides import array_function_dispatch +from numpy._core.umath import multiply + +__all__ = ['einsum', 'einsum_path'] + +# importing string for string.ascii_letters would be too slow +# the first import before caching has been measured to take 800 µs (#23777) +# imports begin with uppercase to mimic ASCII values to avoid sorting issues +einsum_symbols = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz' +einsum_symbols_set = set(einsum_symbols) + + +def _flop_count(idx_contraction, inner, num_terms, size_dictionary): + """ + Computes the number of FLOPS in the contraction. + + Parameters + ---------- + idx_contraction : iterable + The indices involved in the contraction + inner : bool + Does this contraction require an inner product? + num_terms : int + The number of terms in a contraction + size_dictionary : dict + The size of each of the indices in idx_contraction + + Returns + ------- + flop_count : int + The total number of FLOPS required for the contraction. + + Examples + -------- + + >>> _flop_count('abc', False, 1, {'a': 2, 'b':3, 'c':5}) + 30 + + >>> _flop_count('abc', True, 2, {'a': 2, 'b':3, 'c':5}) + 60 + + """ + + overall_size = _compute_size_by_dict(idx_contraction, size_dictionary) + op_factor = max(1, num_terms - 1) + if inner: + op_factor += 1 + + return overall_size * op_factor + +def _compute_size_by_dict(indices, idx_dict): + """ + Computes the product of the elements in indices based on the dictionary + idx_dict. + + Parameters + ---------- + indices : iterable + Indices to base the product on. + idx_dict : dictionary + Dictionary of index sizes + + Returns + ------- + ret : int + The resulting product. + + Examples + -------- + >>> _compute_size_by_dict('abbc', {'a': 2, 'b':3, 'c':5}) + 90 + + """ + ret = 1 + for i in indices: + ret *= idx_dict[i] + return ret + + +def _find_contraction(positions, input_sets, output_set): + """ + Finds the contraction for a given set of input and output sets. + + Parameters + ---------- + positions : iterable + Integer positions of terms used in the contraction. + input_sets : list + List of sets that represent the lhs side of the einsum subscript + output_set : set + Set that represents the rhs side of the overall einsum subscript + + Returns + ------- + new_result : set + The indices of the resulting contraction + remaining : list + List of sets that have not been contracted, the new set is appended to + the end of this list + idx_removed : set + Indices removed from the entire contraction + idx_contraction : set + The indices used in the current contraction + + Examples + -------- + + # A simple dot product test case + >>> pos = (0, 1) + >>> isets = [set('ab'), set('bc')] + >>> oset = set('ac') + >>> _find_contraction(pos, isets, oset) + ({'a', 'c'}, [{'a', 'c'}], {'b'}, {'a', 'b', 'c'}) + + # A more complex case with additional terms in the contraction + >>> pos = (0, 2) + >>> isets = [set('abd'), set('ac'), set('bdc')] + >>> oset = set('ac') + >>> _find_contraction(pos, isets, oset) + ({'a', 'c'}, [{'a', 'c'}, {'a', 'c'}], {'b', 'd'}, {'a', 'b', 'c', 'd'}) + """ + + idx_contract = set() + idx_remain = output_set.copy() + remaining = [] + for ind, value in enumerate(input_sets): + if ind in positions: + idx_contract |= value + else: + remaining.append(value) + idx_remain |= value + + new_result = idx_remain & idx_contract + idx_removed = (idx_contract - new_result) + remaining.append(new_result) + + return (new_result, remaining, idx_removed, idx_contract) + + +def _optimal_path(input_sets, output_set, idx_dict, memory_limit): + """ + Computes all possible pair contractions, sieves the results based + on ``memory_limit`` and returns the lowest cost path. This algorithm + scales factorial with respect to the elements in the list ``input_sets``. + + Parameters + ---------- + input_sets : list + List of sets that represent the lhs side of the einsum subscript + output_set : set + Set that represents the rhs side of the overall einsum subscript + idx_dict : dictionary + Dictionary of index sizes + memory_limit : int + The maximum number of elements in a temporary array + + Returns + ------- + path : list + The optimal contraction order within the memory limit constraint. + + Examples + -------- + >>> isets = [set('abd'), set('ac'), set('bdc')] + >>> oset = set() + >>> idx_sizes = {'a': 1, 'b':2, 'c':3, 'd':4} + >>> _optimal_path(isets, oset, idx_sizes, 5000) + [(0, 2), (0, 1)] + """ + + full_results = [(0, [], input_sets)] + for iteration in range(len(input_sets) - 1): + iter_results = [] + + # Compute all unique pairs + for curr in full_results: + cost, positions, remaining = curr + for con in itertools.combinations( + range(len(input_sets) - iteration), 2 + ): + + # Find the contraction + cont = _find_contraction(con, remaining, output_set) + new_result, new_input_sets, idx_removed, idx_contract = cont + + # Sieve the results based on memory_limit + new_size = _compute_size_by_dict(new_result, idx_dict) + if new_size > memory_limit: + continue + + # Build (total_cost, positions, indices_remaining) + total_cost = cost + _flop_count( + idx_contract, idx_removed, len(con), idx_dict + ) + new_pos = positions + [con] + iter_results.append((total_cost, new_pos, new_input_sets)) + + # Update combinatorial list, if we did not find anything return best + # path + remaining contractions + if iter_results: + full_results = iter_results + else: + path = min(full_results, key=lambda x: x[0])[1] + path += [tuple(range(len(input_sets) - iteration))] + return path + + # If we have not found anything return single einsum contraction + if len(full_results) == 0: + return [tuple(range(len(input_sets)))] + + path = min(full_results, key=lambda x: x[0])[1] + return path + +def _parse_possible_contraction( + positions, input_sets, output_set, idx_dict, + memory_limit, path_cost, naive_cost + ): + """Compute the cost (removed size + flops) and resultant indices for + performing the contraction specified by ``positions``. + + Parameters + ---------- + positions : tuple of int + The locations of the proposed tensors to contract. + input_sets : list of sets + The indices found on each tensors. + output_set : set + The output indices of the expression. + idx_dict : dict + Mapping of each index to its size. + memory_limit : int + The total allowed size for an intermediary tensor. + path_cost : int + The contraction cost so far. + naive_cost : int + The cost of the unoptimized expression. + + Returns + ------- + cost : (int, int) + A tuple containing the size of any indices removed, and the flop cost. + positions : tuple of int + The locations of the proposed tensors to contract. + new_input_sets : list of sets + The resulting new list of indices if this proposed contraction + is performed. + + """ + + # Find the contraction + contract = _find_contraction(positions, input_sets, output_set) + idx_result, new_input_sets, idx_removed, idx_contract = contract + + # Sieve the results based on memory_limit + new_size = _compute_size_by_dict(idx_result, idx_dict) + if new_size > memory_limit: + return None + + # Build sort tuple + old_sizes = ( + _compute_size_by_dict(input_sets[p], idx_dict) for p in positions + ) + removed_size = sum(old_sizes) - new_size + + # NB: removed_size used to be just the size of any removed indices i.e.: + # helpers.compute_size_by_dict(idx_removed, idx_dict) + cost = _flop_count(idx_contract, idx_removed, len(positions), idx_dict) + sort = (-removed_size, cost) + + # Sieve based on total cost as well + if (path_cost + cost) > naive_cost: + return None + + # Add contraction to possible choices + return [sort, positions, new_input_sets] + + +def _update_other_results(results, best): + """Update the positions and provisional input_sets of ``results`` + based on performing the contraction result ``best``. Remove any + involving the tensors contracted. + + Parameters + ---------- + results : list + List of contraction results produced by + ``_parse_possible_contraction``. + best : list + The best contraction of ``results`` i.e. the one that + will be performed. + + Returns + ------- + mod_results : list + The list of modified results, updated with outcome of + ``best`` contraction. + """ + + best_con = best[1] + bx, by = best_con + mod_results = [] + + for cost, (x, y), con_sets in results: + + # Ignore results involving tensors just contracted + if x in best_con or y in best_con: + continue + + # Update the input_sets + del con_sets[by - int(by > x) - int(by > y)] + del con_sets[bx - int(bx > x) - int(bx > y)] + con_sets.insert(-1, best[2][-1]) + + # Update the position indices + mod_con = x - int(x > bx) - int(x > by), y - int(y > bx) - int(y > by) + mod_results.append((cost, mod_con, con_sets)) + + return mod_results + +def _greedy_path(input_sets, output_set, idx_dict, memory_limit): + """ + Finds the path by contracting the best pair until the input list is + exhausted. The best pair is found by minimizing the tuple + ``(-prod(indices_removed), cost)``. What this amounts to is prioritizing + matrix multiplication or inner product operations, then Hadamard like + operations, and finally outer operations. Outer products are limited by + ``memory_limit``. This algorithm scales cubically with respect to the + number of elements in the list ``input_sets``. + + Parameters + ---------- + input_sets : list + List of sets that represent the lhs side of the einsum subscript + output_set : set + Set that represents the rhs side of the overall einsum subscript + idx_dict : dictionary + Dictionary of index sizes + memory_limit : int + The maximum number of elements in a temporary array + + Returns + ------- + path : list + The greedy contraction order within the memory limit constraint. + + Examples + -------- + >>> isets = [set('abd'), set('ac'), set('bdc')] + >>> oset = set() + >>> idx_sizes = {'a': 1, 'b':2, 'c':3, 'd':4} + >>> _greedy_path(isets, oset, idx_sizes, 5000) + [(0, 2), (0, 1)] + """ + + # Handle trivial cases that leaked through + if len(input_sets) == 1: + return [(0,)] + elif len(input_sets) == 2: + return [(0, 1)] + + # Build up a naive cost + contract = _find_contraction( + range(len(input_sets)), input_sets, output_set + ) + idx_result, new_input_sets, idx_removed, idx_contract = contract + naive_cost = _flop_count( + idx_contract, idx_removed, len(input_sets), idx_dict + ) + + # Initially iterate over all pairs + comb_iter = itertools.combinations(range(len(input_sets)), 2) + known_contractions = [] + + path_cost = 0 + path = [] + + for iteration in range(len(input_sets) - 1): + + # Iterate over all pairs on the first step, only previously + # found pairs on subsequent steps + for positions in comb_iter: + + # Always initially ignore outer products + if input_sets[positions[0]].isdisjoint(input_sets[positions[1]]): + continue + + result = _parse_possible_contraction( + positions, input_sets, output_set, idx_dict, + memory_limit, path_cost, naive_cost + ) + if result is not None: + known_contractions.append(result) + + # If we do not have a inner contraction, rescan pairs + # including outer products + if len(known_contractions) == 0: + + # Then check the outer products + for positions in itertools.combinations( + range(len(input_sets)), 2 + ): + result = _parse_possible_contraction( + positions, input_sets, output_set, idx_dict, + memory_limit, path_cost, naive_cost + ) + if result is not None: + known_contractions.append(result) + + # If we still did not find any remaining contractions, + # default back to einsum like behavior + if len(known_contractions) == 0: + path.append(tuple(range(len(input_sets)))) + break + + # Sort based on first index + best = min(known_contractions, key=lambda x: x[0]) + + # Now propagate as many unused contractions as possible + # to the next iteration + known_contractions = _update_other_results(known_contractions, best) + + # Next iteration only compute contractions with the new tensor + # All other contractions have been accounted for + input_sets = best[2] + new_tensor_pos = len(input_sets) - 1 + comb_iter = ((i, new_tensor_pos) for i in range(new_tensor_pos)) + + # Update path and total cost + path.append(best[1]) + path_cost += best[0][1] + + return path + + +def _parse_einsum_input(operands): + """ + A reproduction of einsum c side einsum parsing in python. + + Returns + ------- + input_strings : str + Parsed input strings + output_string : str + Parsed output string + operands : list of array_like + The operands to use in the numpy contraction + + Examples + -------- + The operand list is simplified to reduce printing: + + >>> np.random.seed(123) + >>> a = np.random.rand(4, 4) + >>> b = np.random.rand(4, 4, 4) + >>> _parse_einsum_input(('...a,...a->...', a, b)) + ('za,xza', 'xz', [a, b]) # may vary + + >>> _parse_einsum_input((a, [Ellipsis, 0], b, [Ellipsis, 0])) + ('za,xza', 'xz', [a, b]) # may vary + """ + + if len(operands) == 0: + raise ValueError("No input operands") + + if isinstance(operands[0], str): + subscripts = operands[0].replace(" ", "") + operands = [asanyarray(v) for v in operands[1:]] + + # Ensure all characters are valid + for s in subscripts: + if s in '.,->': + continue + if s not in einsum_symbols: + raise ValueError(f"Character {s} is not a valid symbol.") + + else: + tmp_operands = list(operands) + operand_list = [] + subscript_list = [] + for p in range(len(operands) // 2): + operand_list.append(tmp_operands.pop(0)) + subscript_list.append(tmp_operands.pop(0)) + + output_list = tmp_operands[-1] if len(tmp_operands) else None + operands = [asanyarray(v) for v in operand_list] + subscripts = "" + last = len(subscript_list) - 1 + for num, sub in enumerate(subscript_list): + for s in sub: + if s is Ellipsis: + subscripts += "..." + else: + try: + s = operator.index(s) + except TypeError as e: + raise TypeError( + "For this input type lists must contain " + "either int or Ellipsis" + ) from e + subscripts += einsum_symbols[s] + if num != last: + subscripts += "," + + if output_list is not None: + subscripts += "->" + for s in output_list: + if s is Ellipsis: + subscripts += "..." + else: + try: + s = operator.index(s) + except TypeError as e: + raise TypeError( + "For this input type lists must contain " + "either int or Ellipsis" + ) from e + subscripts += einsum_symbols[s] + # Check for proper "->" + if ("-" in subscripts) or (">" in subscripts): + invalid = (subscripts.count("-") > 1) or (subscripts.count(">") > 1) + if invalid or (subscripts.count("->") != 1): + raise ValueError("Subscripts can only contain one '->'.") + + # Parse ellipses + if "." in subscripts: + used = subscripts.replace(".", "").replace(",", "").replace("->", "") + unused = list(einsum_symbols_set - set(used)) + ellipse_inds = "".join(unused) + longest = 0 + + if "->" in subscripts: + input_tmp, output_sub = subscripts.split("->") + split_subscripts = input_tmp.split(",") + out_sub = True + else: + split_subscripts = subscripts.split(',') + out_sub = False + + for num, sub in enumerate(split_subscripts): + if "." in sub: + if (sub.count(".") != 3) or (sub.count("...") != 1): + raise ValueError("Invalid Ellipses.") + + # Take into account numerical values + if operands[num].shape == (): + ellipse_count = 0 + else: + ellipse_count = max(operands[num].ndim, 1) + ellipse_count -= (len(sub) - 3) + + if ellipse_count > longest: + longest = ellipse_count + + if ellipse_count < 0: + raise ValueError("Ellipses lengths do not match.") + elif ellipse_count == 0: + split_subscripts[num] = sub.replace('...', '') + else: + rep_inds = ellipse_inds[-ellipse_count:] + split_subscripts[num] = sub.replace('...', rep_inds) + + subscripts = ",".join(split_subscripts) + if longest == 0: + out_ellipse = "" + else: + out_ellipse = ellipse_inds[-longest:] + + if out_sub: + subscripts += "->" + output_sub.replace("...", out_ellipse) + else: + # Special care for outputless ellipses + output_subscript = "" + tmp_subscripts = subscripts.replace(",", "") + for s in sorted(set(tmp_subscripts)): + if s not in (einsum_symbols): + raise ValueError(f"Character {s} is not a valid symbol.") + if tmp_subscripts.count(s) == 1: + output_subscript += s + normal_inds = ''.join(sorted(set(output_subscript) - + set(out_ellipse))) + + subscripts += "->" + out_ellipse + normal_inds + + # Build output string if does not exist + if "->" in subscripts: + input_subscripts, output_subscript = subscripts.split("->") + else: + input_subscripts = subscripts + # Build output subscripts + tmp_subscripts = subscripts.replace(",", "") + output_subscript = "" + for s in sorted(set(tmp_subscripts)): + if s not in einsum_symbols: + raise ValueError(f"Character {s} is not a valid symbol.") + if tmp_subscripts.count(s) == 1: + output_subscript += s + + # Make sure output subscripts are in the input + for char in output_subscript: + if output_subscript.count(char) != 1: + raise ValueError("Output character %s appeared more than once in " + "the output." % char) + if char not in input_subscripts: + raise ValueError(f"Output character {char} did not appear in the input") + + # Make sure number operands is equivalent to the number of terms + if len(input_subscripts.split(',')) != len(operands): + raise ValueError("Number of einsum subscripts must be equal to the " + "number of operands.") + + return (input_subscripts, output_subscript, operands) + + +def _einsum_path_dispatcher(*operands, optimize=None, einsum_call=None): + # NOTE: technically, we should only dispatch on array-like arguments, not + # subscripts (given as strings). But separating operands into + # arrays/subscripts is a little tricky/slow (given einsum's two supported + # signatures), so as a practical shortcut we dispatch on everything. + # Strings will be ignored for dispatching since they don't define + # __array_function__. + return operands + + +@array_function_dispatch(_einsum_path_dispatcher, module='numpy') +def einsum_path(*operands, optimize='greedy', einsum_call=False): + """ + einsum_path(subscripts, *operands, optimize='greedy') + + Evaluates the lowest cost contraction order for an einsum expression by + considering the creation of intermediate arrays. + + Parameters + ---------- + subscripts : str + Specifies the subscripts for summation. + *operands : list of array_like + These are the arrays for the operation. + optimize : {bool, list, tuple, 'greedy', 'optimal'} + Choose the type of path. If a tuple is provided, the second argument is + assumed to be the maximum intermediate size created. If only a single + argument is provided the largest input or output array size is used + as a maximum intermediate size. + + * if a list is given that starts with ``einsum_path``, uses this as the + contraction path + * if False no optimization is taken + * if True defaults to the 'greedy' algorithm + * 'optimal' An algorithm that combinatorially explores all possible + ways of contracting the listed tensors and chooses the least costly + path. Scales exponentially with the number of terms in the + contraction. + * 'greedy' An algorithm that chooses the best pair contraction + at each step. Effectively, this algorithm searches the largest inner, + Hadamard, and then outer products at each step. Scales cubically with + the number of terms in the contraction. Equivalent to the 'optimal' + path for most contractions. + + Default is 'greedy'. + + Returns + ------- + path : list of tuples + A list representation of the einsum path. + string_repr : str + A printable representation of the einsum path. + + Notes + ----- + The resulting path indicates which terms of the input contraction should be + contracted first, the result of this contraction is then appended to the + end of the contraction list. This list can then be iterated over until all + intermediate contractions are complete. + + See Also + -------- + einsum, linalg.multi_dot + + Examples + -------- + + We can begin with a chain dot example. In this case, it is optimal to + contract the ``b`` and ``c`` tensors first as represented by the first + element of the path ``(1, 2)``. The resulting tensor is added to the end + of the contraction and the remaining contraction ``(0, 1)`` is then + completed. + + >>> np.random.seed(123) + >>> a = np.random.rand(2, 2) + >>> b = np.random.rand(2, 5) + >>> c = np.random.rand(5, 2) + >>> path_info = np.einsum_path('ij,jk,kl->il', a, b, c, optimize='greedy') + >>> print(path_info[0]) + ['einsum_path', (1, 2), (0, 1)] + >>> print(path_info[1]) + Complete contraction: ij,jk,kl->il # may vary + Naive scaling: 4 + Optimized scaling: 3 + Naive FLOP count: 1.600e+02 + Optimized FLOP count: 5.600e+01 + Theoretical speedup: 2.857 + Largest intermediate: 4.000e+00 elements + ------------------------------------------------------------------------- + scaling current remaining + ------------------------------------------------------------------------- + 3 kl,jk->jl ij,jl->il + 3 jl,ij->il il->il + + + A more complex index transformation example. + + >>> I = np.random.rand(10, 10, 10, 10) + >>> C = np.random.rand(10, 10) + >>> path_info = np.einsum_path('ea,fb,abcd,gc,hd->efgh', C, C, I, C, C, + ... optimize='greedy') + + >>> print(path_info[0]) + ['einsum_path', (0, 2), (0, 3), (0, 2), (0, 1)] + >>> print(path_info[1]) + Complete contraction: ea,fb,abcd,gc,hd->efgh # may vary + Naive scaling: 8 + Optimized scaling: 5 + Naive FLOP count: 8.000e+08 + Optimized FLOP count: 8.000e+05 + Theoretical speedup: 1000.000 + Largest intermediate: 1.000e+04 elements + -------------------------------------------------------------------------- + scaling current remaining + -------------------------------------------------------------------------- + 5 abcd,ea->bcde fb,gc,hd,bcde->efgh + 5 bcde,fb->cdef gc,hd,cdef->efgh + 5 cdef,gc->defg hd,defg->efgh + 5 defg,hd->efgh efgh->efgh + """ + + # Figure out what the path really is + path_type = optimize + if path_type is True: + path_type = 'greedy' + if path_type is None: + path_type = False + + explicit_einsum_path = False + memory_limit = None + + # No optimization or a named path algorithm + if (path_type is False) or isinstance(path_type, str): + pass + + # Given an explicit path + elif len(path_type) and (path_type[0] == 'einsum_path'): + explicit_einsum_path = True + + # Path tuple with memory limit + elif ((len(path_type) == 2) and isinstance(path_type[0], str) and + isinstance(path_type[1], (int, float))): + memory_limit = int(path_type[1]) + path_type = path_type[0] + + else: + raise TypeError(f"Did not understand the path: {str(path_type)}") + + # Hidden option, only einsum should call this + einsum_call_arg = einsum_call + + # Python side parsing + input_subscripts, output_subscript, operands = ( + _parse_einsum_input(operands) + ) + + # Build a few useful list and sets + input_list = input_subscripts.split(',') + num_inputs = len(input_list) + input_sets = [set(x) for x in input_list] + output_set = set(output_subscript) + indices = set(input_subscripts.replace(',', '')) + num_indices = len(indices) + + # Get length of each unique dimension and ensure all dimensions are correct + dimension_dict = {} + for tnum, term in enumerate(input_list): + sh = operands[tnum].shape + if len(sh) != len(term): + raise ValueError("Einstein sum subscript %s does not contain the " + "correct number of indices for operand %d." + % (input_subscripts[tnum], tnum)) + for cnum, char in enumerate(term): + dim = sh[cnum] + + if char in dimension_dict.keys(): + # For broadcasting cases we always want the largest dim size + if dimension_dict[char] == 1: + dimension_dict[char] = dim + elif dim not in (1, dimension_dict[char]): + raise ValueError("Size of label '%s' for operand %d (%d) " + "does not match previous terms (%d)." + % (char, tnum, dimension_dict[char], dim)) + else: + dimension_dict[char] = dim + + # Compute size of each input array plus the output array + size_list = [_compute_size_by_dict(term, dimension_dict) + for term in input_list + [output_subscript]] + max_size = max(size_list) + + if memory_limit is None: + memory_arg = max_size + else: + memory_arg = memory_limit + + # Compute the path + if explicit_einsum_path: + path = path_type[1:] + elif ( + (path_type is False) + or (num_inputs in [1, 2]) + or (indices == output_set) + ): + # Nothing to be optimized, leave it to einsum + path = [tuple(range(num_inputs))] + elif path_type == "greedy": + path = _greedy_path( + input_sets, output_set, dimension_dict, memory_arg + ) + elif path_type == "optimal": + path = _optimal_path( + input_sets, output_set, dimension_dict, memory_arg + ) + else: + raise KeyError("Path name %s not found", path_type) + + cost_list, scale_list, size_list, contraction_list = [], [], [], [] + + # Build contraction tuple (positions, gemm, einsum_str, remaining) + for cnum, contract_inds in enumerate(path): + # Make sure we remove inds from right to left + contract_inds = tuple(sorted(contract_inds, reverse=True)) + + contract = _find_contraction(contract_inds, input_sets, output_set) + out_inds, input_sets, idx_removed, idx_contract = contract + + if not einsum_call_arg: + # these are only needed for printing info + cost = _flop_count( + idx_contract, idx_removed, len(contract_inds), dimension_dict + ) + cost_list.append(cost) + scale_list.append(len(idx_contract)) + size_list.append(_compute_size_by_dict(out_inds, dimension_dict)) + + tmp_inputs = [] + for x in contract_inds: + tmp_inputs.append(input_list.pop(x)) + + # Last contraction + if (cnum - len(path)) == -1: + idx_result = output_subscript + else: + sort_result = [(dimension_dict[ind], ind) for ind in out_inds] + idx_result = "".join([x[1] for x in sorted(sort_result)]) + + input_list.append(idx_result) + einsum_str = ",".join(tmp_inputs) + "->" + idx_result + + contraction = (contract_inds, einsum_str, input_list[:]) + contraction_list.append(contraction) + + if len(input_list) != 1: + # Explicit "einsum_path" is usually trusted, but we detect this kind of + # mistake in order to prevent from returning an intermediate value. + raise RuntimeError( + f"Invalid einsum_path is specified: {len(input_list) - 1} more " + "operands has to be contracted.") + + if einsum_call_arg: + return (operands, contraction_list) + + # Return the path along with a nice string representation + overall_contraction = input_subscripts + "->" + output_subscript + header = ("scaling", "current", "remaining") + + # Compute naive cost + # This isn't quite right, need to look into exactly how einsum does this + inner_product = ( + sum(len(set(x)) for x in input_subscripts.split(',')) - num_indices + ) > 0 + naive_cost = _flop_count( + indices, inner_product, num_inputs, dimension_dict + ) + + opt_cost = sum(cost_list) + 1 + speedup = naive_cost / opt_cost + max_i = max(size_list) + + path_print = f" Complete contraction: {overall_contraction}\n" + path_print += f" Naive scaling: {num_indices}\n" + path_print += " Optimized scaling: %d\n" % max(scale_list) + path_print += f" Naive FLOP count: {naive_cost:.3e}\n" + path_print += f" Optimized FLOP count: {opt_cost:.3e}\n" + path_print += f" Theoretical speedup: {speedup:3.3f}\n" + path_print += f" Largest intermediate: {max_i:.3e} elements\n" + path_print += "-" * 74 + "\n" + path_print += "%6s %24s %40s\n" % header + path_print += "-" * 74 + + for n, contraction in enumerate(contraction_list): + _, einsum_str, remaining = contraction + remaining_str = ",".join(remaining) + "->" + output_subscript + path_run = (scale_list[n], einsum_str, remaining_str) + path_print += "\n%4d %24s %40s" % path_run + + path = ['einsum_path'] + path + return (path, path_print) + + +def _parse_eq_to_pure_multiplication(a_term, shape_a, b_term, shape_b, out): + """If there are no contracted indices, then we can directly transpose and + insert singleton dimensions into ``a`` and ``b`` such that (broadcast) + elementwise multiplication performs the einsum. + + No need to cache this as it is within the cached + ``_parse_eq_to_batch_matmul``. + + """ + desired_a = "" + desired_b = "" + new_shape_a = [] + new_shape_b = [] + for ix in out: + if ix in a_term: + desired_a += ix + new_shape_a.append(shape_a[a_term.index(ix)]) + else: + new_shape_a.append(1) + if ix in b_term: + desired_b += ix + new_shape_b.append(shape_b[b_term.index(ix)]) + else: + new_shape_b.append(1) + + if desired_a != a_term: + eq_a = f"{a_term}->{desired_a}" + else: + eq_a = None + if desired_b != b_term: + eq_b = f"{b_term}->{desired_b}" + else: + eq_b = None + + return ( + eq_a, + eq_b, + new_shape_a, + new_shape_b, + None, # new_shape_ab, not needed since not fusing + None, # perm_ab, not needed as we transpose a and b first + True, # pure_multiplication=True + ) + + +@functools.lru_cache(2**12) +def _parse_eq_to_batch_matmul(eq, shape_a, shape_b): + """Cached parsing of a two term einsum equation into the necessary + sequence of arguments for contracttion via batched matrix multiplication. + The steps we need to specify are: + + 1. Remove repeated and trivial indices from the left and right terms, + and transpose them, done as a single einsum. + 2. Fuse the remaining indices so we have two 3D tensors. + 3. Perform the batched matrix multiplication. + 4. Unfuse the output to get the desired final index order. + + """ + lhs, out = eq.split("->") + a_term, b_term = lhs.split(",") + + if len(a_term) != len(shape_a): + raise ValueError(f"Term '{a_term}' does not match shape {shape_a}.") + if len(b_term) != len(shape_b): + raise ValueError(f"Term '{b_term}' does not match shape {shape_b}.") + + sizes = {} + singletons = set() + + # parse left term to unique indices with size > 1 + left = {} + for ix, d in zip(a_term, shape_a): + if d == 1: + # everything (including broadcasting) works nicely if simply ignore + # such dimensions, but we do need to track if they appear in output + # and thus should be reintroduced later + singletons.add(ix) + continue + if sizes.setdefault(ix, d) != d: + # set and check size + raise ValueError( + f"Index {ix} has mismatched sizes {sizes[ix]} and {d}." + ) + left[ix] = True + + # parse right term to unique indices with size > 1 + right = {} + for ix, d in zip(b_term, shape_b): + # broadcast indices (size 1 on one input and size != 1 + # on the other) should not be treated as singletons + if d == 1: + if ix not in left: + singletons.add(ix) + continue + singletons.discard(ix) + + if sizes.setdefault(ix, d) != d: + # set and check size + raise ValueError( + f"Index {ix} has mismatched sizes {sizes[ix]} and {d}." + ) + right[ix] = True + + # now we classify the unique size > 1 indices only + bat_inds = [] # appears on A, B, O + con_inds = [] # appears on A, B, . + a_keep = [] # appears on A, ., O + b_keep = [] # appears on ., B, O + # other indices (appearing on A or B only) will + # be summed or traced out prior to the matmul + for ix in left: + if right.pop(ix, False): + if ix in out: + bat_inds.append(ix) + else: + con_inds.append(ix) + elif ix in out: + a_keep.append(ix) + # now only indices unique to right remain + for ix in right: + if ix in out: + b_keep.append(ix) + + if not con_inds: + # contraction is pure multiplication, prepare inputs differently + return _parse_eq_to_pure_multiplication( + a_term, shape_a, b_term, shape_b, out + ) + + # only need the size one indices that appear in the output + singletons = [ix for ix in out if ix in singletons] + + # take diagonal, remove any trivial axes and transpose left + desired_a = "".join((*bat_inds, *a_keep, *con_inds)) + if a_term != desired_a: + eq_a = f"{a_term}->{desired_a}" + else: + eq_a = None + + # take diagonal, remove any trivial axes and transpose right + desired_b = "".join((*bat_inds, *con_inds, *b_keep)) + if b_term != desired_b: + eq_b = f"{b_term}->{desired_b}" + else: + eq_b = None + + # then we want to reshape + if bat_inds: + lgroups = (bat_inds, a_keep, con_inds) + rgroups = (bat_inds, con_inds, b_keep) + ogroups = (bat_inds, a_keep, b_keep) + else: + # avoid size 1 batch dimension if no batch indices + lgroups = (a_keep, con_inds) + rgroups = (con_inds, b_keep) + ogroups = (a_keep, b_keep) + + if any(len(group) != 1 for group in lgroups): + # need to fuse 'kept' and contracted indices + # (though could allow batch indices to be broadcast) + new_shape_a = tuple( + functools.reduce(operator.mul, (sizes[ix] for ix in ix_group), 1) + for ix_group in lgroups + ) + else: + new_shape_a = None + + if any(len(group) != 1 for group in rgroups): + # need to fuse 'kept' and contracted indices + # (though could allow batch indices to be broadcast) + new_shape_b = tuple( + functools.reduce(operator.mul, (sizes[ix] for ix in ix_group), 1) + for ix_group in rgroups + ) + else: + new_shape_b = None + + if any(len(group) != 1 for group in ogroups) or singletons: + new_shape_ab = (1,) * len(singletons) + tuple( + sizes[ix] for ix_group in ogroups for ix in ix_group + ) + else: + new_shape_ab = None + + # then we might need to permute the matmul produced output: + out_produced = "".join((*singletons, *bat_inds, *a_keep, *b_keep)) + if out_produced != out: + perm_ab = tuple(out_produced.index(ix) for ix in out) + else: + perm_ab = None + + return ( + eq_a, + eq_b, + new_shape_a, + new_shape_b, + new_shape_ab, + perm_ab, + False, # pure_multiplication=False + ) + + +@functools.lru_cache(maxsize=64) +def _parse_output_order(order, a_is_fcontig, b_is_fcontig): + order = order.upper() + if order == "K": + return None + elif order in "CF": + return order + elif order == "A": + if a_is_fcontig and b_is_fcontig: + return "F" + else: + return "C" + else: + raise ValueError( + "ValueError: order must be one of " + f"'C', 'F', 'A', or 'K' (got '{order}')" + ) + + +def bmm_einsum(eq, a, b, out=None, **kwargs): + """Perform arbitrary pairwise einsums using only ``matmul``, or + ``multiply`` if no contracted indices are involved (plus maybe single term + ``einsum`` to prepare the terms individually). The logic for each is cached + based on the equation and array shape, and each step is only performed if + necessary. + + Parameters + ---------- + eq : str + The einsum equation. + a : array_like + The first array to contract. + b : array_like + The second array to contract. + + Returns + ------- + array_like + + Notes + ----- + A fuller description of this algorithm, and original source for this + implementation, can be found at https://github.com/jcmgray/einsum_bmm. + """ + ( + eq_a, + eq_b, + new_shape_a, + new_shape_b, + new_shape_ab, + perm_ab, + pure_multiplication, + ) = _parse_eq_to_batch_matmul(eq, a.shape, b.shape) + + # n.b. one could special case various cases to call c_einsum directly here + + # need to handle `order` a little manually, since we do transpose + # operations before and potentially after the ufunc calls + output_order = _parse_output_order( + kwargs.pop("order", "K"), a.flags.f_contiguous, b.flags.f_contiguous + ) + + # prepare left + if eq_a is not None: + # diagonals, sums, and tranpose + a = c_einsum(eq_a, a) + if new_shape_a is not None: + a = reshape(a, new_shape_a) + + # prepare right + if eq_b is not None: + # diagonals, sums, and tranpose + b = c_einsum(eq_b, b) + if new_shape_b is not None: + b = reshape(b, new_shape_b) + + if pure_multiplication: + # no contracted indices + if output_order is not None: + kwargs["order"] = output_order + + # do the 'contraction' via multiplication! + return multiply(a, b, out=out, **kwargs) + + # can only supply out here if no other reshaping / transposing + matmul_out_compatible = (new_shape_ab is None) and (perm_ab is None) + if matmul_out_compatible: + kwargs["out"] = out + + # do the contraction! + ab = matmul(a, b, **kwargs) + + # prepare the output + if new_shape_ab is not None: + ab = reshape(ab, new_shape_ab) + if perm_ab is not None: + ab = ab.transpose(perm_ab) + + if (out is not None) and (not matmul_out_compatible): + # handle case where out is specified, but we also needed + # to reshape / transpose ``ab`` after the matmul + out[:] = ab + ab = out + elif output_order is not None: + ab = asanyarray(ab, order=output_order) + + return ab + + +def _einsum_dispatcher(*operands, out=None, optimize=None, **kwargs): + # Arguably we dispatch on more arguments than we really should; see note in + # _einsum_path_dispatcher for why. + yield from operands + yield out + + +# Rewrite einsum to handle different cases +@array_function_dispatch(_einsum_dispatcher, module='numpy') +def einsum(*operands, out=None, optimize=False, **kwargs): + """ + einsum(subscripts, *operands, out=None, dtype=None, order='K', + casting='safe', optimize=False) + + Evaluates the Einstein summation convention on the operands. + + Using the Einstein summation convention, many common multi-dimensional, + linear algebraic array operations can be represented in a simple fashion. + In *implicit* mode `einsum` computes these values. + + In *explicit* mode, `einsum` provides further flexibility to compute + other array operations that might not be considered classical Einstein + summation operations, by disabling, or forcing summation over specified + subscript labels. + + See the notes and examples for clarification. + + Parameters + ---------- + subscripts : str + Specifies the subscripts for summation as comma separated list of + subscript labels. An implicit (classical Einstein summation) + calculation is performed unless the explicit indicator '->' is + included as well as subscript labels of the precise output form. + operands : list of array_like + These are the arrays for the operation. + out : ndarray, optional + If provided, the calculation is done into this array. + dtype : {data-type, None}, optional + If provided, forces the calculation to use the data type specified. + Note that you may have to also give a more liberal `casting` + parameter to allow the conversions. Default is None. + order : {'C', 'F', 'A', 'K'}, optional + Controls the memory layout of the output. 'C' means it should + be C contiguous. 'F' means it should be Fortran contiguous, + 'A' means it should be 'F' if the inputs are all 'F', 'C' otherwise. + 'K' means it should be as close to the layout as the inputs as + is possible, including arbitrarily permuted axes. + Default is 'K'. + casting : {'no', 'equiv', 'safe', 'same_kind', 'unsafe'}, optional + Controls what kind of data casting may occur. Setting this to + 'unsafe' is not recommended, as it can adversely affect accumulations. + + * 'no' means the data types should not be cast at all. + * 'equiv' means only byte-order changes are allowed. + * 'safe' means only casts which can preserve values are allowed. + * 'same_kind' means only safe casts or casts within a kind, + like float64 to float32, are allowed. + * 'unsafe' means any data conversions may be done. + + Default is 'safe'. + optimize : {False, True, 'greedy', 'optimal'}, optional + Controls if intermediate optimization should occur. No optimization + will occur if False and True will default to the 'greedy' algorithm. + Also accepts an explicit contraction list from the ``np.einsum_path`` + function. See ``np.einsum_path`` for more details. Defaults to False. + + Returns + ------- + output : ndarray + The calculation based on the Einstein summation convention. + + See Also + -------- + einsum_path, dot, inner, outer, tensordot, linalg.multi_dot + einsum: + Similar verbose interface is provided by the + `einops `_ package to cover + additional operations: transpose, reshape/flatten, repeat/tile, + squeeze/unsqueeze and reductions. + The `opt_einsum `_ + optimizes contraction order for einsum-like expressions + in backend-agnostic manner. + + Notes + ----- + The Einstein summation convention can be used to compute + many multi-dimensional, linear algebraic array operations. `einsum` + provides a succinct way of representing these. + + A non-exhaustive list of these operations, + which can be computed by `einsum`, is shown below along with examples: + + * Trace of an array, :py:func:`numpy.trace`. + * Return a diagonal, :py:func:`numpy.diag`. + * Array axis summations, :py:func:`numpy.sum`. + * Transpositions and permutations, :py:func:`numpy.transpose`. + * Matrix multiplication and dot product, :py:func:`numpy.matmul` + :py:func:`numpy.dot`. + * Vector inner and outer products, :py:func:`numpy.inner` + :py:func:`numpy.outer`. + * Broadcasting, element-wise and scalar multiplication, + :py:func:`numpy.multiply`. + * Tensor contractions, :py:func:`numpy.tensordot`. + * Chained array operations, in efficient calculation order, + :py:func:`numpy.einsum_path`. + + The subscripts string is a comma-separated list of subscript labels, + where each label refers to a dimension of the corresponding operand. + Whenever a label is repeated it is summed, so ``np.einsum('i,i', a, b)`` + is equivalent to :py:func:`np.inner(a,b) `. If a label + appears only once, it is not summed, so ``np.einsum('i', a)`` + produces a view of ``a`` with no changes. A further example + ``np.einsum('ij,jk', a, b)`` describes traditional matrix multiplication + and is equivalent to :py:func:`np.matmul(a,b) `. + Repeated subscript labels in one operand take the diagonal. + For example, ``np.einsum('ii', a)`` is equivalent to + :py:func:`np.trace(a) `. + + In *implicit mode*, the chosen subscripts are important + since the axes of the output are reordered alphabetically. This + means that ``np.einsum('ij', a)`` doesn't affect a 2D array, while + ``np.einsum('ji', a)`` takes its transpose. Additionally, + ``np.einsum('ij,jk', a, b)`` returns a matrix multiplication, while, + ``np.einsum('ij,jh', a, b)`` returns the transpose of the + multiplication since subscript 'h' precedes subscript 'i'. + + In *explicit mode* the output can be directly controlled by + specifying output subscript labels. This requires the + identifier '->' as well as the list of output subscript labels. + This feature increases the flexibility of the function since + summing can be disabled or forced when required. The call + ``np.einsum('i->', a)`` is like :py:func:`np.sum(a) ` + if ``a`` is a 1-D array, and ``np.einsum('ii->i', a)`` + is like :py:func:`np.diag(a) ` if ``a`` is a square 2-D array. + The difference is that `einsum` does not allow broadcasting by default. + Additionally ``np.einsum('ij,jh->ih', a, b)`` directly specifies the + order of the output subscript labels and therefore returns matrix + multiplication, unlike the example above in implicit mode. + + To enable and control broadcasting, use an ellipsis. Default + NumPy-style broadcasting is done by adding an ellipsis + to the left of each term, like ``np.einsum('...ii->...i', a)``. + ``np.einsum('...i->...', a)`` is like + :py:func:`np.sum(a, axis=-1) ` for array ``a`` of any shape. + To take the trace along the first and last axes, + you can do ``np.einsum('i...i', a)``, or to do a matrix-matrix + product with the left-most indices instead of rightmost, one can do + ``np.einsum('ij...,jk...->ik...', a, b)``. + + When there is only one operand, no axes are summed, and no output + parameter is provided, a view into the operand is returned instead + of a new array. Thus, taking the diagonal as ``np.einsum('ii->i', a)`` + produces a view (changed in version 1.10.0). + + `einsum` also provides an alternative way to provide the subscripts and + operands as ``einsum(op0, sublist0, op1, sublist1, ..., [sublistout])``. + If the output shape is not provided in this format `einsum` will be + calculated in implicit mode, otherwise it will be performed explicitly. + The examples below have corresponding `einsum` calls with the two + parameter methods. + + Views returned from einsum are now writeable whenever the input array + is writeable. For example, ``np.einsum('ijk...->kji...', a)`` will now + have the same effect as :py:func:`np.swapaxes(a, 0, 2) ` + and ``np.einsum('ii->i', a)`` will return a writeable view of the diagonal + of a 2D array. + + Added the ``optimize`` argument which will optimize the contraction order + of an einsum expression. For a contraction with three or more operands + this can greatly increase the computational efficiency at the cost of + a larger memory footprint during computation. + + Typically a 'greedy' algorithm is applied which empirical tests have shown + returns the optimal path in the majority of cases. In some cases 'optimal' + will return the superlative path through a more expensive, exhaustive + search. For iterative calculations it may be advisable to calculate + the optimal path once and reuse that path by supplying it as an argument. + An example is given below. + + See :py:func:`numpy.einsum_path` for more details. + + Examples + -------- + >>> a = np.arange(25).reshape(5,5) + >>> b = np.arange(5) + >>> c = np.arange(6).reshape(2,3) + + Trace of a matrix: + + >>> np.einsum('ii', a) + 60 + >>> np.einsum(a, [0,0]) + 60 + >>> np.trace(a) + 60 + + Extract the diagonal (requires explicit form): + + >>> np.einsum('ii->i', a) + array([ 0, 6, 12, 18, 24]) + >>> np.einsum(a, [0,0], [0]) + array([ 0, 6, 12, 18, 24]) + >>> np.diag(a) + array([ 0, 6, 12, 18, 24]) + + Sum over an axis (requires explicit form): + + >>> np.einsum('ij->i', a) + array([ 10, 35, 60, 85, 110]) + >>> np.einsum(a, [0,1], [0]) + array([ 10, 35, 60, 85, 110]) + >>> np.sum(a, axis=1) + array([ 10, 35, 60, 85, 110]) + + For higher dimensional arrays summing a single axis can be done + with ellipsis: + + >>> np.einsum('...j->...', a) + array([ 10, 35, 60, 85, 110]) + >>> np.einsum(a, [Ellipsis,1], [Ellipsis]) + array([ 10, 35, 60, 85, 110]) + + Compute a matrix transpose, or reorder any number of axes: + + >>> np.einsum('ji', c) + array([[0, 3], + [1, 4], + [2, 5]]) + >>> np.einsum('ij->ji', c) + array([[0, 3], + [1, 4], + [2, 5]]) + >>> np.einsum(c, [1,0]) + array([[0, 3], + [1, 4], + [2, 5]]) + >>> np.transpose(c) + array([[0, 3], + [1, 4], + [2, 5]]) + + Vector inner products: + + >>> np.einsum('i,i', b, b) + 30 + >>> np.einsum(b, [0], b, [0]) + 30 + >>> np.inner(b,b) + 30 + + Matrix vector multiplication: + + >>> np.einsum('ij,j', a, b) + array([ 30, 80, 130, 180, 230]) + >>> np.einsum(a, [0,1], b, [1]) + array([ 30, 80, 130, 180, 230]) + >>> np.dot(a, b) + array([ 30, 80, 130, 180, 230]) + >>> np.einsum('...j,j', a, b) + array([ 30, 80, 130, 180, 230]) + + Broadcasting and scalar multiplication: + + >>> np.einsum('..., ...', 3, c) + array([[ 0, 3, 6], + [ 9, 12, 15]]) + >>> np.einsum(',ij', 3, c) + array([[ 0, 3, 6], + [ 9, 12, 15]]) + >>> np.einsum(3, [Ellipsis], c, [Ellipsis]) + array([[ 0, 3, 6], + [ 9, 12, 15]]) + >>> np.multiply(3, c) + array([[ 0, 3, 6], + [ 9, 12, 15]]) + + Vector outer product: + + >>> np.einsum('i,j', np.arange(2)+1, b) + array([[0, 1, 2, 3, 4], + [0, 2, 4, 6, 8]]) + >>> np.einsum(np.arange(2)+1, [0], b, [1]) + array([[0, 1, 2, 3, 4], + [0, 2, 4, 6, 8]]) + >>> np.outer(np.arange(2)+1, b) + array([[0, 1, 2, 3, 4], + [0, 2, 4, 6, 8]]) + + Tensor contraction: + + >>> a = np.arange(60.).reshape(3,4,5) + >>> b = np.arange(24.).reshape(4,3,2) + >>> np.einsum('ijk,jil->kl', a, b) + array([[4400., 4730.], + [4532., 4874.], + [4664., 5018.], + [4796., 5162.], + [4928., 5306.]]) + >>> np.einsum(a, [0,1,2], b, [1,0,3], [2,3]) + array([[4400., 4730.], + [4532., 4874.], + [4664., 5018.], + [4796., 5162.], + [4928., 5306.]]) + >>> np.tensordot(a,b, axes=([1,0],[0,1])) + array([[4400., 4730.], + [4532., 4874.], + [4664., 5018.], + [4796., 5162.], + [4928., 5306.]]) + + Writeable returned arrays (since version 1.10.0): + + >>> a = np.zeros((3, 3)) + >>> np.einsum('ii->i', a)[:] = 1 + >>> a + array([[1., 0., 0.], + [0., 1., 0.], + [0., 0., 1.]]) + + Example of ellipsis use: + + >>> a = np.arange(6).reshape((3,2)) + >>> b = np.arange(12).reshape((4,3)) + >>> np.einsum('ki,jk->ij', a, b) + array([[10, 28, 46, 64], + [13, 40, 67, 94]]) + >>> np.einsum('ki,...k->i...', a, b) + array([[10, 28, 46, 64], + [13, 40, 67, 94]]) + >>> np.einsum('k...,jk', a, b) + array([[10, 28, 46, 64], + [13, 40, 67, 94]]) + + Chained array operations. For more complicated contractions, speed ups + might be achieved by repeatedly computing a 'greedy' path or pre-computing + the 'optimal' path and repeatedly applying it, using an `einsum_path` + insertion (since version 1.12.0). Performance improvements can be + particularly significant with larger arrays: + + >>> a = np.ones(64).reshape(2,4,8) + + Basic `einsum`: ~1520ms (benchmarked on 3.1GHz Intel i5.) + + >>> for iteration in range(500): + ... _ = np.einsum('ijk,ilm,njm,nlk,abc->',a,a,a,a,a) + + Sub-optimal `einsum` (due to repeated path calculation time): ~330ms + + >>> for iteration in range(500): + ... _ = np.einsum('ijk,ilm,njm,nlk,abc->',a,a,a,a,a, + ... optimize='optimal') + + Greedy `einsum` (faster optimal path approximation): ~160ms + + >>> for iteration in range(500): + ... _ = np.einsum('ijk,ilm,njm,nlk,abc->',a,a,a,a,a, optimize='greedy') + + Optimal `einsum` (best usage pattern in some use cases): ~110ms + + >>> path = np.einsum_path('ijk,ilm,njm,nlk,abc->',a,a,a,a,a, + ... optimize='optimal')[0] + >>> for iteration in range(500): + ... _ = np.einsum('ijk,ilm,njm,nlk,abc->',a,a,a,a,a, optimize=path) + + """ + # Special handling if out is specified + specified_out = out is not None + + # If no optimization, run pure einsum + if optimize is False: + if specified_out: + kwargs['out'] = out + return c_einsum(*operands, **kwargs) + + # Check the kwargs to avoid a more cryptic error later, without having to + # repeat default values here + valid_einsum_kwargs = ['dtype', 'order', 'casting'] + unknown_kwargs = [k for (k, v) in kwargs.items() if + k not in valid_einsum_kwargs] + if len(unknown_kwargs): + raise TypeError(f"Did not understand the following kwargs: {unknown_kwargs}") + + # Build the contraction list and operand + operands, contraction_list = einsum_path(*operands, optimize=optimize, + einsum_call=True) + + # Start contraction loop + for num, contraction in enumerate(contraction_list): + inds, einsum_str, _ = contraction + tmp_operands = [operands.pop(x) for x in inds] + + # Do we need to deal with the output? + handle_out = specified_out and ((num + 1) == len(contraction_list)) + + # If out was specified + if handle_out: + kwargs["out"] = out + + if len(tmp_operands) == 2: + # Call (batched) matrix multiplication if possible + new_view = bmm_einsum(einsum_str, *tmp_operands, **kwargs) + else: + # Call einsum + new_view = c_einsum(einsum_str, *tmp_operands, **kwargs) + + # Append new items and dereference what we can + operands.append(new_view) + del tmp_operands, new_view + + if specified_out: + return out + else: + return operands[0] diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/einsumfunc.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/einsumfunc.pyi new file mode 100644 index 0000000000000000000000000000000000000000..6d34883e66256d0dfe51661caa5218997dd53e9b --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/einsumfunc.pyi @@ -0,0 +1,184 @@ +from collections.abc import Sequence +from typing import Any, Literal, TypeAlias, TypeVar, overload + +import numpy as np +from numpy import _OrderKACF, number +from numpy._typing import ( + NDArray, + _ArrayLikeBool_co, + _ArrayLikeComplex_co, + _ArrayLikeFloat_co, + _ArrayLikeInt_co, + _ArrayLikeObject_co, + _ArrayLikeUInt_co, + _DTypeLikeBool, + _DTypeLikeComplex, + _DTypeLikeComplex_co, + _DTypeLikeFloat, + _DTypeLikeInt, + _DTypeLikeObject, + _DTypeLikeUInt, +) + +__all__ = ["einsum", "einsum_path"] + +_ArrayT = TypeVar( + "_ArrayT", + bound=NDArray[np.bool | number], +) + +_OptimizeKind: TypeAlias = bool | Literal["greedy", "optimal"] | Sequence[Any] | None +_CastingSafe: TypeAlias = Literal["no", "equiv", "safe", "same_kind"] +_CastingUnsafe: TypeAlias = Literal["unsafe"] + +# TODO: Properly handle the `casting`-based combinatorics +# TODO: We need to evaluate the content `__subscripts` in order +# to identify whether or an array or scalar is returned. At a cursory +# glance this seems like something that can quite easily be done with +# a mypy plugin. +# Something like `is_scalar = bool(__subscripts.partition("->")[-1])` +@overload +def einsum( + subscripts: str | _ArrayLikeInt_co, + /, + *operands: _ArrayLikeBool_co, + out: None = None, + dtype: _DTypeLikeBool | None = ..., + order: _OrderKACF = ..., + casting: _CastingSafe = ..., + optimize: _OptimizeKind = False, +) -> Any: ... +@overload +def einsum( + subscripts: str | _ArrayLikeInt_co, + /, + *operands: _ArrayLikeUInt_co, + out: None = None, + dtype: _DTypeLikeUInt | None = ..., + order: _OrderKACF = ..., + casting: _CastingSafe = ..., + optimize: _OptimizeKind = False, +) -> Any: ... +@overload +def einsum( + subscripts: str | _ArrayLikeInt_co, + /, + *operands: _ArrayLikeInt_co, + out: None = None, + dtype: _DTypeLikeInt | None = ..., + order: _OrderKACF = ..., + casting: _CastingSafe = ..., + optimize: _OptimizeKind = False, +) -> Any: ... +@overload +def einsum( + subscripts: str | _ArrayLikeInt_co, + /, + *operands: _ArrayLikeFloat_co, + out: None = None, + dtype: _DTypeLikeFloat | None = ..., + order: _OrderKACF = ..., + casting: _CastingSafe = ..., + optimize: _OptimizeKind = False, +) -> Any: ... +@overload +def einsum( + subscripts: str | _ArrayLikeInt_co, + /, + *operands: _ArrayLikeComplex_co, + out: None = None, + dtype: _DTypeLikeComplex | None = ..., + order: _OrderKACF = ..., + casting: _CastingSafe = ..., + optimize: _OptimizeKind = False, +) -> Any: ... +@overload +def einsum( + subscripts: str | _ArrayLikeInt_co, + /, + *operands: Any, + casting: _CastingUnsafe, + dtype: _DTypeLikeComplex_co | None = ..., + out: None = None, + order: _OrderKACF = ..., + optimize: _OptimizeKind = False, +) -> Any: ... +@overload +def einsum( + subscripts: str | _ArrayLikeInt_co, + /, + *operands: _ArrayLikeComplex_co, + out: _ArrayT, + dtype: _DTypeLikeComplex_co | None = ..., + order: _OrderKACF = ..., + casting: _CastingSafe = ..., + optimize: _OptimizeKind = False, +) -> _ArrayT: ... +@overload +def einsum( + subscripts: str | _ArrayLikeInt_co, + /, + *operands: Any, + out: _ArrayT, + casting: _CastingUnsafe, + dtype: _DTypeLikeComplex_co | None = ..., + order: _OrderKACF = ..., + optimize: _OptimizeKind = False, +) -> _ArrayT: ... + +@overload +def einsum( + subscripts: str | _ArrayLikeInt_co, + /, + *operands: _ArrayLikeObject_co, + out: None = None, + dtype: _DTypeLikeObject | None = ..., + order: _OrderKACF = ..., + casting: _CastingSafe = ..., + optimize: _OptimizeKind = False, +) -> Any: ... +@overload +def einsum( + subscripts: str | _ArrayLikeInt_co, + /, + *operands: Any, + casting: _CastingUnsafe, + dtype: _DTypeLikeObject | None = ..., + out: None = None, + order: _OrderKACF = ..., + optimize: _OptimizeKind = False, +) -> Any: ... +@overload +def einsum( + subscripts: str | _ArrayLikeInt_co, + /, + *operands: _ArrayLikeObject_co, + out: _ArrayT, + dtype: _DTypeLikeObject | None = ..., + order: _OrderKACF = ..., + casting: _CastingSafe = ..., + optimize: _OptimizeKind = False, +) -> _ArrayT: ... +@overload +def einsum( + subscripts: str | _ArrayLikeInt_co, + /, + *operands: Any, + out: _ArrayT, + casting: _CastingUnsafe, + dtype: _DTypeLikeObject | None = ..., + order: _OrderKACF = ..., + optimize: _OptimizeKind = False, +) -> _ArrayT: ... + +# NOTE: `einsum_call` is a hidden kwarg unavailable for public use. +# It is therefore excluded from the signatures below. +# NOTE: In practice the list consists of a `str` (first element) +# and a variable number of integer tuples. +def einsum_path( + subscripts: str | _ArrayLikeInt_co, + /, + *operands: _ArrayLikeComplex_co | _DTypeLikeObject, + optimize: _OptimizeKind = "greedy", + einsum_call: Literal[False] = False, +) -> tuple[list[Any], str]: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/fromnumeric.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/fromnumeric.py new file mode 100644 index 0000000000000000000000000000000000000000..33fb9ec4b39fc2ce6e1737ad432a365d8305b694 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/fromnumeric.py @@ -0,0 +1,4233 @@ +"""Module containing non-deprecated functions borrowed from Numeric. + +""" +import functools +import math +import types + +import numpy as np +from numpy._utils import set_module + +from . import _methods, multiarray as mu, numerictypes as nt, overrides, umath as um +from ._multiarray_umath import _array_converter +from .multiarray import asanyarray, asarray, concatenate + +_dt_ = nt.sctype2char + +# functions that are methods +__all__ = [ + 'all', 'amax', 'amin', 'any', 'argmax', + 'argmin', 'argpartition', 'argsort', 'around', 'choose', 'clip', + 'compress', 'cumprod', 'cumsum', 'cumulative_prod', 'cumulative_sum', + 'diagonal', 'mean', 'max', 'min', 'matrix_transpose', + 'ndim', 'nonzero', 'partition', 'prod', 'ptp', 'put', + 'ravel', 'repeat', 'reshape', 'resize', 'round', + 'searchsorted', 'shape', 'size', 'sort', 'squeeze', + 'std', 'sum', 'swapaxes', 'take', 'trace', 'transpose', 'var', +] + +_gentype = types.GeneratorType +# save away Python sum +_sum_ = sum + +array_function_dispatch = functools.partial( + overrides.array_function_dispatch, module='numpy') + + +# functions that are now methods +def _wrapit(obj, method, *args, **kwds): + conv = _array_converter(obj) + # As this already tried the method, subok is maybe quite reasonable here + # but this follows what was done before. TODO: revisit this. + arr, = conv.as_arrays(subok=False) + result = getattr(arr, method)(*args, **kwds) + + return conv.wrap(result, to_scalar=False) + + +def _wrapfunc(obj, method, *args, **kwds): + bound = getattr(obj, method, None) + if bound is None: + return _wrapit(obj, method, *args, **kwds) + + try: + return bound(*args, **kwds) + except TypeError: + # A TypeError occurs if the object does have such a method in its + # class, but its signature is not identical to that of NumPy's. This + # situation has occurred in the case of a downstream library like + # 'pandas'. + # + # Call _wrapit from within the except clause to ensure a potential + # exception has a traceback chain. + return _wrapit(obj, method, *args, **kwds) + + +def _wrapreduction(obj, ufunc, method, axis, dtype, out, **kwargs): + passkwargs = {k: v for k, v in kwargs.items() + if v is not np._NoValue} + + if type(obj) is not mu.ndarray: + try: + reduction = getattr(obj, method) + except AttributeError: + pass + else: + # This branch is needed for reductions like any which don't + # support a dtype. + if dtype is not None: + return reduction(axis=axis, dtype=dtype, out=out, **passkwargs) + else: + return reduction(axis=axis, out=out, **passkwargs) + + return ufunc.reduce(obj, axis, dtype, out, **passkwargs) + + +def _wrapreduction_any_all(obj, ufunc, method, axis, out, **kwargs): + # Same as above function, but dtype is always bool (but never passed on) + passkwargs = {k: v for k, v in kwargs.items() + if v is not np._NoValue} + + if type(obj) is not mu.ndarray: + try: + reduction = getattr(obj, method) + except AttributeError: + pass + else: + return reduction(axis=axis, out=out, **passkwargs) + + return ufunc.reduce(obj, axis, bool, out, **passkwargs) + + +def _take_dispatcher(a, indices, axis=None, out=None, mode=None): + return (a, out) + + +@array_function_dispatch(_take_dispatcher) +def take(a, indices, axis=None, out=None, mode='raise'): + """ + Take elements from an array along an axis. + + When axis is not None, this function does the same thing as "fancy" + indexing (indexing arrays using arrays); however, it can be easier to use + if you need elements along a given axis. A call such as + ``np.take(arr, indices, axis=3)`` is equivalent to + ``arr[:,:,:,indices,...]``. + + Explained without fancy indexing, this is equivalent to the following use + of `ndindex`, which sets each of ``ii``, ``jj``, and ``kk`` to a tuple of + indices:: + + Ni, Nk = a.shape[:axis], a.shape[axis+1:] + Nj = indices.shape + for ii in ndindex(Ni): + for jj in ndindex(Nj): + for kk in ndindex(Nk): + out[ii + jj + kk] = a[ii + (indices[jj],) + kk] + + Parameters + ---------- + a : array_like (Ni..., M, Nk...) + The source array. + indices : array_like (Nj...) + The indices of the values to extract. + Also allow scalars for indices. + axis : int, optional + The axis over which to select values. By default, the flattened + input array is used. + out : ndarray, optional (Ni..., Nj..., Nk...) + If provided, the result will be placed in this array. It should + be of the appropriate shape and dtype. Note that `out` is always + buffered if `mode='raise'`; use other modes for better performance. + mode : {'raise', 'wrap', 'clip'}, optional + Specifies how out-of-bounds indices will behave. + + * 'raise' -- raise an error (default) + * 'wrap' -- wrap around + * 'clip' -- clip to the range + + 'clip' mode means that all indices that are too large are replaced + by the index that addresses the last element along that axis. Note + that this disables indexing with negative numbers. + + Returns + ------- + out : ndarray (Ni..., Nj..., Nk...) + The returned array has the same type as `a`. + + See Also + -------- + compress : Take elements using a boolean mask + ndarray.take : equivalent method + take_along_axis : Take elements by matching the array and the index arrays + + Notes + ----- + By eliminating the inner loop in the description above, and using `s_` to + build simple slice objects, `take` can be expressed in terms of applying + fancy indexing to each 1-d slice:: + + Ni, Nk = a.shape[:axis], a.shape[axis+1:] + for ii in ndindex(Ni): + for kk in ndindex(Nk): + out[ii + s_[...,] + kk] = a[ii + s_[:,] + kk][indices] + + For this reason, it is equivalent to (but faster than) the following use + of `apply_along_axis`:: + + out = np.apply_along_axis(lambda a_1d: a_1d[indices], axis, a) + + Examples + -------- + >>> import numpy as np + >>> a = [4, 3, 5, 7, 6, 8] + >>> indices = [0, 1, 4] + >>> np.take(a, indices) + array([4, 3, 6]) + + In this example if `a` is an ndarray, "fancy" indexing can be used. + + >>> a = np.array(a) + >>> a[indices] + array([4, 3, 6]) + + If `indices` is not one dimensional, the output also has these dimensions. + + >>> np.take(a, [[0, 1], [2, 3]]) + array([[4, 3], + [5, 7]]) + """ + return _wrapfunc(a, 'take', indices, axis=axis, out=out, mode=mode) + + +def _reshape_dispatcher(a, /, shape, order=None, *, copy=None): + return (a,) + + +@array_function_dispatch(_reshape_dispatcher) +def reshape(a, /, shape, order='C', *, copy=None): + """ + Gives a new shape to an array without changing its data. + + Parameters + ---------- + a : array_like + Array to be reshaped. + shape : int or tuple of ints + The new shape should be compatible with the original shape. If + an integer, then the result will be a 1-D array of that length. + One shape dimension can be -1. In this case, the value is + inferred from the length of the array and remaining dimensions. + order : {'C', 'F', 'A'}, optional + Read the elements of ``a`` using this index order, and place the + elements into the reshaped array using this index order. 'C' + means to read / write the elements using C-like index order, + with the last axis index changing fastest, back to the first + axis index changing slowest. 'F' means to read / write the + elements using Fortran-like index order, with the first index + changing fastest, and the last index changing slowest. Note that + the 'C' and 'F' options take no account of the memory layout of + the underlying array, and only refer to the order of indexing. + 'A' means to read / write the elements in Fortran-like index + order if ``a`` is Fortran *contiguous* in memory, C-like order + otherwise. + copy : bool, optional + If ``True``, then the array data is copied. If ``None``, a copy will + only be made if it's required by ``order``. For ``False`` it raises + a ``ValueError`` if a copy cannot be avoided. Default: ``None``. + + Returns + ------- + reshaped_array : ndarray + This will be a new view object if possible; otherwise, it will + be a copy. Note there is no guarantee of the *memory layout* (C- or + Fortran- contiguous) of the returned array. + + See Also + -------- + ndarray.reshape : Equivalent method. + + Notes + ----- + It is not always possible to change the shape of an array without copying + the data. + + The ``order`` keyword gives the index ordering both for *fetching* + the values from ``a``, and then *placing* the values into the output + array. For example, let's say you have an array: + + >>> a = np.arange(6).reshape((3, 2)) + >>> a + array([[0, 1], + [2, 3], + [4, 5]]) + + You can think of reshaping as first raveling the array (using the given + index order), then inserting the elements from the raveled array into the + new array using the same kind of index ordering as was used for the + raveling. + + >>> np.reshape(a, (2, 3)) # C-like index ordering + array([[0, 1, 2], + [3, 4, 5]]) + >>> np.reshape(np.ravel(a), (2, 3)) # equivalent to C ravel then C reshape + array([[0, 1, 2], + [3, 4, 5]]) + >>> np.reshape(a, (2, 3), order='F') # Fortran-like index ordering + array([[0, 4, 3], + [2, 1, 5]]) + >>> np.reshape(np.ravel(a, order='F'), (2, 3), order='F') + array([[0, 4, 3], + [2, 1, 5]]) + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1,2,3], [4,5,6]]) + >>> np.reshape(a, 6) + array([1, 2, 3, 4, 5, 6]) + >>> np.reshape(a, 6, order='F') + array([1, 4, 2, 5, 3, 6]) + + >>> np.reshape(a, (3,-1)) # the unspecified value is inferred to be 2 + array([[1, 2], + [3, 4], + [5, 6]]) + """ + if copy is not None: + return _wrapfunc(a, 'reshape', shape, order=order, copy=copy) + return _wrapfunc(a, 'reshape', shape, order=order) + + +def _choose_dispatcher(a, choices, out=None, mode=None): + yield a + yield from choices + yield out + + +@array_function_dispatch(_choose_dispatcher) +def choose(a, choices, out=None, mode='raise'): + """ + Construct an array from an index array and a list of arrays to choose from. + + First of all, if confused or uncertain, definitely look at the Examples - + in its full generality, this function is less simple than it might + seem from the following code description:: + + np.choose(a,c) == np.array([c[a[I]][I] for I in np.ndindex(a.shape)]) + + But this omits some subtleties. Here is a fully general summary: + + Given an "index" array (`a`) of integers and a sequence of ``n`` arrays + (`choices`), `a` and each choice array are first broadcast, as necessary, + to arrays of a common shape; calling these *Ba* and *Bchoices[i], i = + 0,...,n-1* we have that, necessarily, ``Ba.shape == Bchoices[i].shape`` + for each ``i``. Then, a new array with shape ``Ba.shape`` is created as + follows: + + * if ``mode='raise'`` (the default), then, first of all, each element of + ``a`` (and thus ``Ba``) must be in the range ``[0, n-1]``; now, suppose + that ``i`` (in that range) is the value at the ``(j0, j1, ..., jm)`` + position in ``Ba`` - then the value at the same position in the new array + is the value in ``Bchoices[i]`` at that same position; + + * if ``mode='wrap'``, values in `a` (and thus `Ba`) may be any (signed) + integer; modular arithmetic is used to map integers outside the range + `[0, n-1]` back into that range; and then the new array is constructed + as above; + + * if ``mode='clip'``, values in `a` (and thus ``Ba``) may be any (signed) + integer; negative integers are mapped to 0; values greater than ``n-1`` + are mapped to ``n-1``; and then the new array is constructed as above. + + Parameters + ---------- + a : int array + This array must contain integers in ``[0, n-1]``, where ``n`` is the + number of choices, unless ``mode=wrap`` or ``mode=clip``, in which + cases any integers are permissible. + choices : sequence of arrays + Choice arrays. `a` and all of the choices must be broadcastable to the + same shape. If `choices` is itself an array (not recommended), then + its outermost dimension (i.e., the one corresponding to + ``choices.shape[0]``) is taken as defining the "sequence". + out : array, optional + If provided, the result will be inserted into this array. It should + be of the appropriate shape and dtype. Note that `out` is always + buffered if ``mode='raise'``; use other modes for better performance. + mode : {'raise' (default), 'wrap', 'clip'}, optional + Specifies how indices outside ``[0, n-1]`` will be treated: + + * 'raise' : an exception is raised + * 'wrap' : value becomes value mod ``n`` + * 'clip' : values < 0 are mapped to 0, values > n-1 are mapped to n-1 + + Returns + ------- + merged_array : array + The merged result. + + Raises + ------ + ValueError: shape mismatch + If `a` and each choice array are not all broadcastable to the same + shape. + + See Also + -------- + ndarray.choose : equivalent method + numpy.take_along_axis : Preferable if `choices` is an array + + Notes + ----- + To reduce the chance of misinterpretation, even though the following + "abuse" is nominally supported, `choices` should neither be, nor be + thought of as, a single array, i.e., the outermost sequence-like container + should be either a list or a tuple. + + Examples + -------- + + >>> import numpy as np + >>> choices = [[0, 1, 2, 3], [10, 11, 12, 13], + ... [20, 21, 22, 23], [30, 31, 32, 33]] + >>> np.choose([2, 3, 1, 0], choices + ... # the first element of the result will be the first element of the + ... # third (2+1) "array" in choices, namely, 20; the second element + ... # will be the second element of the fourth (3+1) choice array, i.e., + ... # 31, etc. + ... ) + array([20, 31, 12, 3]) + >>> np.choose([2, 4, 1, 0], choices, mode='clip') # 4 goes to 3 (4-1) + array([20, 31, 12, 3]) + >>> # because there are 4 choice arrays + >>> np.choose([2, 4, 1, 0], choices, mode='wrap') # 4 goes to (4 mod 4) + array([20, 1, 12, 3]) + >>> # i.e., 0 + + A couple examples illustrating how choose broadcasts: + + >>> a = [[1, 0, 1], [0, 1, 0], [1, 0, 1]] + >>> choices = [-10, 10] + >>> np.choose(a, choices) + array([[ 10, -10, 10], + [-10, 10, -10], + [ 10, -10, 10]]) + + >>> # With thanks to Anne Archibald + >>> a = np.array([0, 1]).reshape((2,1,1)) + >>> c1 = np.array([1, 2, 3]).reshape((1,3,1)) + >>> c2 = np.array([-1, -2, -3, -4, -5]).reshape((1,1,5)) + >>> np.choose(a, (c1, c2)) # result is 2x3x5, res[0,:,:]=c1, res[1,:,:]=c2 + array([[[ 1, 1, 1, 1, 1], + [ 2, 2, 2, 2, 2], + [ 3, 3, 3, 3, 3]], + [[-1, -2, -3, -4, -5], + [-1, -2, -3, -4, -5], + [-1, -2, -3, -4, -5]]]) + + """ + return _wrapfunc(a, 'choose', choices, out=out, mode=mode) + + +def _repeat_dispatcher(a, repeats, axis=None): + return (a,) + + +@array_function_dispatch(_repeat_dispatcher) +def repeat(a, repeats, axis=None): + """ + Repeat each element of an array after themselves + + Parameters + ---------- + a : array_like + Input array. + repeats : int or array of ints + The number of repetitions for each element. `repeats` is broadcasted + to fit the shape of the given axis. + axis : int, optional + The axis along which to repeat values. By default, use the + flattened input array, and return a flat output array. + + Returns + ------- + repeated_array : ndarray + Output array which has the same shape as `a`, except along + the given axis. + + See Also + -------- + tile : Tile an array. + unique : Find the unique elements of an array. + + Examples + -------- + >>> import numpy as np + >>> np.repeat(3, 4) + array([3, 3, 3, 3]) + >>> x = np.array([[1,2],[3,4]]) + >>> np.repeat(x, 2) + array([1, 1, 2, 2, 3, 3, 4, 4]) + >>> np.repeat(x, 3, axis=1) + array([[1, 1, 1, 2, 2, 2], + [3, 3, 3, 4, 4, 4]]) + >>> np.repeat(x, [1, 2], axis=0) + array([[1, 2], + [3, 4], + [3, 4]]) + + """ + return _wrapfunc(a, 'repeat', repeats, axis=axis) + + +def _put_dispatcher(a, ind, v, mode=None): + return (a, ind, v) + + +@array_function_dispatch(_put_dispatcher) +def put(a, ind, v, mode='raise'): + """ + Replaces specified elements of an array with given values. + + The indexing works on the flattened target array. `put` is roughly + equivalent to: + + :: + + a.flat[ind] = v + + Parameters + ---------- + a : ndarray + Target array. + ind : array_like + Target indices, interpreted as integers. + v : array_like + Values to place in `a` at target indices. If `v` is shorter than + `ind` it will be repeated as necessary. + mode : {'raise', 'wrap', 'clip'}, optional + Specifies how out-of-bounds indices will behave. + + * 'raise' -- raise an error (default) + * 'wrap' -- wrap around + * 'clip' -- clip to the range + + 'clip' mode means that all indices that are too large are replaced + by the index that addresses the last element along that axis. Note + that this disables indexing with negative numbers. In 'raise' mode, + if an exception occurs the target array may still be modified. + + See Also + -------- + putmask, place + put_along_axis : Put elements by matching the array and the index arrays + + Examples + -------- + >>> import numpy as np + >>> a = np.arange(5) + >>> np.put(a, [0, 2], [-44, -55]) + >>> a + array([-44, 1, -55, 3, 4]) + + >>> a = np.arange(5) + >>> np.put(a, 22, -5, mode='clip') + >>> a + array([ 0, 1, 2, 3, -5]) + + """ + try: + put = a.put + except AttributeError as e: + raise TypeError(f"argument 1 must be numpy.ndarray, not {type(a)}") from e + + return put(ind, v, mode=mode) + + +def _swapaxes_dispatcher(a, axis1, axis2): + return (a,) + + +@array_function_dispatch(_swapaxes_dispatcher) +def swapaxes(a, axis1, axis2): + """ + Interchange two axes of an array. + + Parameters + ---------- + a : array_like + Input array. + axis1 : int + First axis. + axis2 : int + Second axis. + + Returns + ------- + a_swapped : ndarray + For NumPy >= 1.10.0, if `a` is an ndarray, then a view of `a` is + returned; otherwise a new array is created. For earlier NumPy + versions a view of `a` is returned only if the order of the + axes is changed, otherwise the input array is returned. + + Examples + -------- + >>> import numpy as np + >>> x = np.array([[1,2,3]]) + >>> np.swapaxes(x,0,1) + array([[1], + [2], + [3]]) + + >>> x = np.array([[[0,1],[2,3]],[[4,5],[6,7]]]) + >>> x + array([[[0, 1], + [2, 3]], + [[4, 5], + [6, 7]]]) + + >>> np.swapaxes(x,0,2) + array([[[0, 4], + [2, 6]], + [[1, 5], + [3, 7]]]) + + """ + return _wrapfunc(a, 'swapaxes', axis1, axis2) + + +def _transpose_dispatcher(a, axes=None): + return (a,) + + +@array_function_dispatch(_transpose_dispatcher) +def transpose(a, axes=None): + """ + Returns an array with axes transposed. + + For a 1-D array, this returns an unchanged view of the original array, as a + transposed vector is simply the same vector. + To convert a 1-D array into a 2-D column vector, an additional dimension + must be added, e.g., ``np.atleast_2d(a).T`` achieves this, as does + ``a[:, np.newaxis]``. + For a 2-D array, this is the standard matrix transpose. + For an n-D array, if axes are given, their order indicates how the + axes are permuted (see Examples). If axes are not provided, then + ``transpose(a).shape == a.shape[::-1]``. + + Parameters + ---------- + a : array_like + Input array. + axes : tuple or list of ints, optional + If specified, it must be a tuple or list which contains a permutation + of [0, 1, ..., N-1] where N is the number of axes of `a`. Negative + indices can also be used to specify axes. The i-th axis of the returned + array will correspond to the axis numbered ``axes[i]`` of the input. + If not specified, defaults to ``range(a.ndim)[::-1]``, which reverses + the order of the axes. + + Returns + ------- + p : ndarray + `a` with its axes permuted. A view is returned whenever possible. + + See Also + -------- + ndarray.transpose : Equivalent method. + moveaxis : Move axes of an array to new positions. + argsort : Return the indices that would sort an array. + + Notes + ----- + Use ``transpose(a, argsort(axes))`` to invert the transposition of tensors + when using the `axes` keyword argument. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1, 2], [3, 4]]) + >>> a + array([[1, 2], + [3, 4]]) + >>> np.transpose(a) + array([[1, 3], + [2, 4]]) + + >>> a = np.array([1, 2, 3, 4]) + >>> a + array([1, 2, 3, 4]) + >>> np.transpose(a) + array([1, 2, 3, 4]) + + >>> a = np.ones((1, 2, 3)) + >>> np.transpose(a, (1, 0, 2)).shape + (2, 1, 3) + + >>> a = np.ones((2, 3, 4, 5)) + >>> np.transpose(a).shape + (5, 4, 3, 2) + + >>> a = np.arange(3*4*5).reshape((3, 4, 5)) + >>> np.transpose(a, (-1, 0, -2)).shape + (5, 3, 4) + + """ + return _wrapfunc(a, 'transpose', axes) + + +def _matrix_transpose_dispatcher(x): + return (x,) + +@array_function_dispatch(_matrix_transpose_dispatcher) +def matrix_transpose(x, /): + """ + Transposes a matrix (or a stack of matrices) ``x``. + + This function is Array API compatible. + + Parameters + ---------- + x : array_like + Input array having shape (..., M, N) and whose two innermost + dimensions form ``MxN`` matrices. + + Returns + ------- + out : ndarray + An array containing the transpose for each matrix and having shape + (..., N, M). + + See Also + -------- + transpose : Generic transpose method. + + Examples + -------- + >>> import numpy as np + >>> np.matrix_transpose([[1, 2], [3, 4]]) + array([[1, 3], + [2, 4]]) + + >>> np.matrix_transpose([[[1, 2], [3, 4]], [[5, 6], [7, 8]]]) + array([[[1, 3], + [2, 4]], + [[5, 7], + [6, 8]]]) + + """ + x = asanyarray(x) + if x.ndim < 2: + raise ValueError( + f"Input array must be at least 2-dimensional, but it is {x.ndim}" + ) + return swapaxes(x, -1, -2) + + +def _partition_dispatcher(a, kth, axis=None, kind=None, order=None): + return (a,) + + +@array_function_dispatch(_partition_dispatcher) +def partition(a, kth, axis=-1, kind='introselect', order=None): + """ + Return a partitioned copy of an array. + + Creates a copy of the array and partially sorts it in such a way that + the value of the element in k-th position is in the position it would be + in a sorted array. In the output array, all elements smaller than the k-th + element are located to the left of this element and all equal or greater + are located to its right. The ordering of the elements in the two + partitions on the either side of the k-th element in the output array is + undefined. + + Parameters + ---------- + a : array_like + Array to be sorted. + kth : int or sequence of ints + Element index to partition by. The k-th value of the element + will be in its final sorted position and all smaller elements + will be moved before it and all equal or greater elements behind + it. The order of all elements in the partitions is undefined. If + provided with a sequence of k-th it will partition all elements + indexed by k-th of them into their sorted position at once. + + axis : int or None, optional + Axis along which to sort. If None, the array is flattened before + sorting. The default is -1, which sorts along the last axis. + kind : {'introselect'}, optional + Selection algorithm. Default is 'introselect'. + order : str or list of str, optional + When `a` is an array with fields defined, this argument + specifies which fields to compare first, second, etc. A single + field can be specified as a string. Not all fields need be + specified, but unspecified fields will still be used, in the + order in which they come up in the dtype, to break ties. + + Returns + ------- + partitioned_array : ndarray + Array of the same type and shape as `a`. + + See Also + -------- + ndarray.partition : Method to sort an array in-place. + argpartition : Indirect partition. + sort : Full sorting + + Notes + ----- + The various selection algorithms are characterized by their average + speed, worst case performance, work space size, and whether they are + stable. A stable sort keeps items with the same key in the same + relative order. The available algorithms have the following + properties: + + ================= ======= ============= ============ ======= + kind speed worst case work space stable + ================= ======= ============= ============ ======= + 'introselect' 1 O(n) 0 no + ================= ======= ============= ============ ======= + + All the partition algorithms make temporary copies of the data when + partitioning along any but the last axis. Consequently, + partitioning along the last axis is faster and uses less space than + partitioning along any other axis. + + The sort order for complex numbers is lexicographic. If both the + real and imaginary parts are non-nan then the order is determined by + the real parts except when they are equal, in which case the order + is determined by the imaginary parts. + + The sort order of ``np.nan`` is bigger than ``np.inf``. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([7, 1, 7, 7, 1, 5, 7, 2, 3, 2, 6, 2, 3, 0]) + >>> p = np.partition(a, 4) + >>> p + array([0, 1, 2, 1, 2, 5, 2, 3, 3, 6, 7, 7, 7, 7]) # may vary + + ``p[4]`` is 2; all elements in ``p[:4]`` are less than or equal + to ``p[4]``, and all elements in ``p[5:]`` are greater than or + equal to ``p[4]``. The partition is:: + + [0, 1, 2, 1], [2], [5, 2, 3, 3, 6, 7, 7, 7, 7] + + The next example shows the use of multiple values passed to `kth`. + + >>> p2 = np.partition(a, (4, 8)) + >>> p2 + array([0, 1, 2, 1, 2, 3, 3, 2, 5, 6, 7, 7, 7, 7]) + + ``p2[4]`` is 2 and ``p2[8]`` is 5. All elements in ``p2[:4]`` + are less than or equal to ``p2[4]``, all elements in ``p2[5:8]`` + are greater than or equal to ``p2[4]`` and less than or equal to + ``p2[8]``, and all elements in ``p2[9:]`` are greater than or + equal to ``p2[8]``. The partition is:: + + [0, 1, 2, 1], [2], [3, 3, 2], [5], [6, 7, 7, 7, 7] + """ + if axis is None: + # flatten returns (1, N) for np.matrix, so always use the last axis + a = asanyarray(a).flatten() + axis = -1 + else: + a = asanyarray(a).copy(order="K") + a.partition(kth, axis=axis, kind=kind, order=order) + return a + + +def _argpartition_dispatcher(a, kth, axis=None, kind=None, order=None): + return (a,) + + +@array_function_dispatch(_argpartition_dispatcher) +def argpartition(a, kth, axis=-1, kind='introselect', order=None): + """ + Perform an indirect partition along the given axis using the + algorithm specified by the `kind` keyword. It returns an array of + indices of the same shape as `a` that index data along the given + axis in partitioned order. + + Parameters + ---------- + a : array_like + Array to sort. + kth : int or sequence of ints + Element index to partition by. The k-th element will be in its + final sorted position and all smaller elements will be moved + before it and all larger elements behind it. The order of all + elements in the partitions is undefined. If provided with a + sequence of k-th it will partition all of them into their sorted + position at once. + + axis : int or None, optional + Axis along which to sort. The default is -1 (the last axis). If + None, the flattened array is used. + kind : {'introselect'}, optional + Selection algorithm. Default is 'introselect' + order : str or list of str, optional + When `a` is an array with fields defined, this argument + specifies which fields to compare first, second, etc. A single + field can be specified as a string, and not all fields need be + specified, but unspecified fields will still be used, in the + order in which they come up in the dtype, to break ties. + + Returns + ------- + index_array : ndarray, int + Array of indices that partition `a` along the specified axis. + If `a` is one-dimensional, ``a[index_array]`` yields a partitioned `a`. + More generally, ``np.take_along_axis(a, index_array, axis=axis)`` + always yields the partitioned `a`, irrespective of dimensionality. + + See Also + -------- + partition : Describes partition algorithms used. + ndarray.partition : Inplace partition. + argsort : Full indirect sort. + take_along_axis : Apply ``index_array`` from argpartition + to an array as if by calling partition. + + Notes + ----- + The returned indices are not guaranteed to be sorted according to + the values. Furthermore, the default selection algorithm ``introselect`` + is unstable, and hence the returned indices are not guaranteed + to be the earliest/latest occurrence of the element. + + `argpartition` works for real/complex inputs with nan values, + see `partition` for notes on the enhanced sort order and + different selection algorithms. + + Examples + -------- + One dimensional array: + + >>> import numpy as np + >>> x = np.array([3, 4, 2, 1]) + >>> x[np.argpartition(x, 3)] + array([2, 1, 3, 4]) # may vary + >>> x[np.argpartition(x, (1, 3))] + array([1, 2, 3, 4]) # may vary + + >>> x = [3, 4, 2, 1] + >>> np.array(x)[np.argpartition(x, 3)] + array([2, 1, 3, 4]) # may vary + + Multi-dimensional array: + + >>> x = np.array([[3, 4, 2], [1, 3, 1]]) + >>> index_array = np.argpartition(x, kth=1, axis=-1) + >>> # below is the same as np.partition(x, kth=1) + >>> np.take_along_axis(x, index_array, axis=-1) + array([[2, 3, 4], + [1, 1, 3]]) + + """ + return _wrapfunc(a, 'argpartition', kth, axis=axis, kind=kind, order=order) + + +def _sort_dispatcher(a, axis=None, kind=None, order=None, *, stable=None): + return (a,) + + +@array_function_dispatch(_sort_dispatcher) +def sort(a, axis=-1, kind=None, order=None, *, stable=None): + """ + Return a sorted copy of an array. + + Parameters + ---------- + a : array_like + Array to be sorted. + axis : int or None, optional + Axis along which to sort. If None, the array is flattened before + sorting. The default is -1, which sorts along the last axis. + kind : {'quicksort', 'mergesort', 'heapsort', 'stable'}, optional + Sorting algorithm. The default is 'quicksort'. Note that both 'stable' + and 'mergesort' use timsort or radix sort under the covers and, + in general, the actual implementation will vary with data type. + The 'mergesort' option is retained for backwards compatibility. + order : str or list of str, optional + When `a` is an array with fields defined, this argument specifies + which fields to compare first, second, etc. A single field can + be specified as a string, and not all fields need be specified, + but unspecified fields will still be used, in the order in which + they come up in the dtype, to break ties. + stable : bool, optional + Sort stability. If ``True``, the returned array will maintain + the relative order of ``a`` values which compare as equal. + If ``False`` or ``None``, this is not guaranteed. Internally, + this option selects ``kind='stable'``. Default: ``None``. + + .. versionadded:: 2.0.0 + + Returns + ------- + sorted_array : ndarray + Array of the same type and shape as `a`. + + See Also + -------- + ndarray.sort : Method to sort an array in-place. + argsort : Indirect sort. + lexsort : Indirect stable sort on multiple keys. + searchsorted : Find elements in a sorted array. + partition : Partial sort. + + Notes + ----- + The various sorting algorithms are characterized by their average speed, + worst case performance, work space size, and whether they are stable. A + stable sort keeps items with the same key in the same relative + order. The four algorithms implemented in NumPy have the following + properties: + + =========== ======= ============= ============ ======== + kind speed worst case work space stable + =========== ======= ============= ============ ======== + 'quicksort' 1 O(n^2) 0 no + 'heapsort' 3 O(n*log(n)) 0 no + 'mergesort' 2 O(n*log(n)) ~n/2 yes + 'timsort' 2 O(n*log(n)) ~n/2 yes + =========== ======= ============= ============ ======== + + .. note:: The datatype determines which of 'mergesort' or 'timsort' + is actually used, even if 'mergesort' is specified. User selection + at a finer scale is not currently available. + + For performance, ``sort`` makes a temporary copy if needed to make the data + `contiguous `_ + in memory along the sort axis. For even better performance and reduced + memory consumption, ensure that the array is already contiguous along the + sort axis. + + The sort order for complex numbers is lexicographic. If both the real + and imaginary parts are non-nan then the order is determined by the + real parts except when they are equal, in which case the order is + determined by the imaginary parts. + + Previous to numpy 1.4.0 sorting real and complex arrays containing nan + values led to undefined behaviour. In numpy versions >= 1.4.0 nan + values are sorted to the end. The extended sort order is: + + * Real: [R, nan] + * Complex: [R + Rj, R + nanj, nan + Rj, nan + nanj] + + where R is a non-nan real value. Complex values with the same nan + placements are sorted according to the non-nan part if it exists. + Non-nan values are sorted as before. + + quicksort has been changed to: + `introsort `_. + When sorting does not make enough progress it switches to + `heapsort `_. + This implementation makes quicksort O(n*log(n)) in the worst case. + + 'stable' automatically chooses the best stable sorting algorithm + for the data type being sorted. + It, along with 'mergesort' is currently mapped to + `timsort `_ + or `radix sort `_ + depending on the data type. + API forward compatibility currently limits the + ability to select the implementation and it is hardwired for the different + data types. + + Timsort is added for better performance on already or nearly + sorted data. On random data timsort is almost identical to + mergesort. It is now used for stable sort while quicksort is still the + default sort if none is chosen. For timsort details, refer to + `CPython listsort.txt + `_ + 'mergesort' and 'stable' are mapped to radix sort for integer data types. + Radix sort is an O(n) sort instead of O(n log n). + + NaT now sorts to the end of arrays for consistency with NaN. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1,4],[3,1]]) + >>> np.sort(a) # sort along the last axis + array([[1, 4], + [1, 3]]) + >>> np.sort(a, axis=None) # sort the flattened array + array([1, 1, 3, 4]) + >>> np.sort(a, axis=0) # sort along the first axis + array([[1, 1], + [3, 4]]) + + Use the `order` keyword to specify a field to use when sorting a + structured array: + + >>> dtype = [('name', 'S10'), ('height', float), ('age', int)] + >>> values = [('Arthur', 1.8, 41), ('Lancelot', 1.9, 38), + ... ('Galahad', 1.7, 38)] + >>> a = np.array(values, dtype=dtype) # create a structured array + >>> np.sort(a, order='height') # doctest: +SKIP + array([('Galahad', 1.7, 38), ('Arthur', 1.8, 41), + ('Lancelot', 1.8999999999999999, 38)], + dtype=[('name', '|S10'), ('height', '>> np.sort(a, order=['age', 'height']) # doctest: +SKIP + array([('Galahad', 1.7, 38), ('Lancelot', 1.8999999999999999, 38), + ('Arthur', 1.8, 41)], + dtype=[('name', '|S10'), ('height', '>> import numpy as np + >>> x = np.array([3, 1, 2]) + >>> np.argsort(x) + array([1, 2, 0]) + + Two-dimensional array: + + >>> x = np.array([[0, 3], [2, 2]]) + >>> x + array([[0, 3], + [2, 2]]) + + >>> ind = np.argsort(x, axis=0) # sorts along first axis (down) + >>> ind + array([[0, 1], + [1, 0]]) + >>> np.take_along_axis(x, ind, axis=0) # same as np.sort(x, axis=0) + array([[0, 2], + [2, 3]]) + + >>> ind = np.argsort(x, axis=1) # sorts along last axis (across) + >>> ind + array([[0, 1], + [0, 1]]) + >>> np.take_along_axis(x, ind, axis=1) # same as np.sort(x, axis=1) + array([[0, 3], + [2, 2]]) + + Indices of the sorted elements of a N-dimensional array: + + >>> ind = np.unravel_index(np.argsort(x, axis=None), x.shape) + >>> ind + (array([0, 1, 1, 0]), array([0, 0, 1, 1])) + >>> x[ind] # same as np.sort(x, axis=None) + array([0, 2, 2, 3]) + + Sorting with keys: + + >>> x = np.array([(1, 0), (0, 1)], dtype=[('x', '>> x + array([(1, 0), (0, 1)], + dtype=[('x', '>> np.argsort(x, order=('x','y')) + array([1, 0]) + + >>> np.argsort(x, order=('y','x')) + array([0, 1]) + + """ + return _wrapfunc( + a, 'argsort', axis=axis, kind=kind, order=order, stable=stable + ) + +def _argmax_dispatcher(a, axis=None, out=None, *, keepdims=np._NoValue): + return (a, out) + + +@array_function_dispatch(_argmax_dispatcher) +def argmax(a, axis=None, out=None, *, keepdims=np._NoValue): + """ + Returns the indices of the maximum values along an axis. + + Parameters + ---------- + a : array_like + Input array. + axis : int, optional + By default, the index is into the flattened array, otherwise + along the specified axis. + out : array, optional + If provided, the result will be inserted into this array. It should + be of the appropriate shape and dtype. + keepdims : bool, optional + If this is set to True, the axes which are reduced are left + in the result as dimensions with size one. With this option, + the result will broadcast correctly against the array. + + .. versionadded:: 1.22.0 + + Returns + ------- + index_array : ndarray of ints + Array of indices into the array. It has the same shape as ``a.shape`` + with the dimension along `axis` removed. If `keepdims` is set to True, + then the size of `axis` will be 1 with the resulting array having same + shape as ``a.shape``. + + See Also + -------- + ndarray.argmax, argmin + amax : The maximum value along a given axis. + unravel_index : Convert a flat index into an index tuple. + take_along_axis : Apply ``np.expand_dims(index_array, axis)`` + from argmax to an array as if by calling max. + + Notes + ----- + In case of multiple occurrences of the maximum values, the indices + corresponding to the first occurrence are returned. + + Examples + -------- + >>> import numpy as np + >>> a = np.arange(6).reshape(2,3) + 10 + >>> a + array([[10, 11, 12], + [13, 14, 15]]) + >>> np.argmax(a) + 5 + >>> np.argmax(a, axis=0) + array([1, 1, 1]) + >>> np.argmax(a, axis=1) + array([2, 2]) + + Indexes of the maximal elements of a N-dimensional array: + + >>> a.flat[np.argmax(a)] + 15 + >>> ind = np.unravel_index(np.argmax(a, axis=None), a.shape) + >>> ind + (1, 2) + >>> a[ind] + 15 + + >>> b = np.arange(6) + >>> b[1] = 5 + >>> b + array([0, 5, 2, 3, 4, 5]) + >>> np.argmax(b) # Only the first occurrence is returned. + 1 + + >>> x = np.array([[4,2,3], [1,0,3]]) + >>> index_array = np.argmax(x, axis=-1) + >>> # Same as np.amax(x, axis=-1, keepdims=True) + >>> np.take_along_axis(x, np.expand_dims(index_array, axis=-1), axis=-1) + array([[4], + [3]]) + >>> # Same as np.amax(x, axis=-1) + >>> np.take_along_axis(x, np.expand_dims(index_array, axis=-1), + ... axis=-1).squeeze(axis=-1) + array([4, 3]) + + Setting `keepdims` to `True`, + + >>> x = np.arange(24).reshape((2, 3, 4)) + >>> res = np.argmax(x, axis=1, keepdims=True) + >>> res.shape + (2, 1, 4) + """ + kwds = {'keepdims': keepdims} if keepdims is not np._NoValue else {} + return _wrapfunc(a, 'argmax', axis=axis, out=out, **kwds) + + +def _argmin_dispatcher(a, axis=None, out=None, *, keepdims=np._NoValue): + return (a, out) + + +@array_function_dispatch(_argmin_dispatcher) +def argmin(a, axis=None, out=None, *, keepdims=np._NoValue): + """ + Returns the indices of the minimum values along an axis. + + Parameters + ---------- + a : array_like + Input array. + axis : int, optional + By default, the index is into the flattened array, otherwise + along the specified axis. + out : array, optional + If provided, the result will be inserted into this array. It should + be of the appropriate shape and dtype. + keepdims : bool, optional + If this is set to True, the axes which are reduced are left + in the result as dimensions with size one. With this option, + the result will broadcast correctly against the array. + + .. versionadded:: 1.22.0 + + Returns + ------- + index_array : ndarray of ints + Array of indices into the array. It has the same shape as `a.shape` + with the dimension along `axis` removed. If `keepdims` is set to True, + then the size of `axis` will be 1 with the resulting array having same + shape as `a.shape`. + + See Also + -------- + ndarray.argmin, argmax + amin : The minimum value along a given axis. + unravel_index : Convert a flat index into an index tuple. + take_along_axis : Apply ``np.expand_dims(index_array, axis)`` + from argmin to an array as if by calling min. + + Notes + ----- + In case of multiple occurrences of the minimum values, the indices + corresponding to the first occurrence are returned. + + Examples + -------- + >>> import numpy as np + >>> a = np.arange(6).reshape(2,3) + 10 + >>> a + array([[10, 11, 12], + [13, 14, 15]]) + >>> np.argmin(a) + 0 + >>> np.argmin(a, axis=0) + array([0, 0, 0]) + >>> np.argmin(a, axis=1) + array([0, 0]) + + Indices of the minimum elements of a N-dimensional array: + + >>> a.flat[np.argmin(a)] + 10 + >>> ind = np.unravel_index(np.argmin(a, axis=None), a.shape) + >>> ind + (0, 0) + >>> a[ind] + 10 + + >>> b = np.arange(6) + 10 + >>> b[4] = 10 + >>> b + array([10, 11, 12, 13, 10, 15]) + >>> np.argmin(b) # Only the first occurrence is returned. + 0 + + >>> x = np.array([[4,2,3], [1,0,3]]) + >>> index_array = np.argmin(x, axis=-1) + >>> # Same as np.amin(x, axis=-1, keepdims=True) + >>> np.take_along_axis(x, np.expand_dims(index_array, axis=-1), axis=-1) + array([[2], + [0]]) + >>> # Same as np.amax(x, axis=-1) + >>> np.take_along_axis(x, np.expand_dims(index_array, axis=-1), + ... axis=-1).squeeze(axis=-1) + array([2, 0]) + + Setting `keepdims` to `True`, + + >>> x = np.arange(24).reshape((2, 3, 4)) + >>> res = np.argmin(x, axis=1, keepdims=True) + >>> res.shape + (2, 1, 4) + """ + kwds = {'keepdims': keepdims} if keepdims is not np._NoValue else {} + return _wrapfunc(a, 'argmin', axis=axis, out=out, **kwds) + + +def _searchsorted_dispatcher(a, v, side=None, sorter=None): + return (a, v, sorter) + + +@array_function_dispatch(_searchsorted_dispatcher) +def searchsorted(a, v, side='left', sorter=None): + """ + Find indices where elements should be inserted to maintain order. + + Find the indices into a sorted array `a` such that, if the + corresponding elements in `v` were inserted before the indices, the + order of `a` would be preserved. + + Assuming that `a` is sorted: + + ====== ============================ + `side` returned index `i` satisfies + ====== ============================ + left ``a[i-1] < v <= a[i]`` + right ``a[i-1] <= v < a[i]`` + ====== ============================ + + Parameters + ---------- + a : 1-D array_like + Input array. If `sorter` is None, then it must be sorted in + ascending order, otherwise `sorter` must be an array of indices + that sort it. + v : array_like + Values to insert into `a`. + side : {'left', 'right'}, optional + If 'left', the index of the first suitable location found is given. + If 'right', return the last such index. If there is no suitable + index, return either 0 or N (where N is the length of `a`). + sorter : 1-D array_like, optional + Optional array of integer indices that sort array a into ascending + order. They are typically the result of argsort. + + Returns + ------- + indices : int or array of ints + Array of insertion points with the same shape as `v`, + or an integer if `v` is a scalar. + + See Also + -------- + sort : Return a sorted copy of an array. + histogram : Produce histogram from 1-D data. + + Notes + ----- + Binary search is used to find the required insertion points. + + As of NumPy 1.4.0 `searchsorted` works with real/complex arrays containing + `nan` values. The enhanced sort order is documented in `sort`. + + This function uses the same algorithm as the builtin python + `bisect.bisect_left` (``side='left'``) and `bisect.bisect_right` + (``side='right'``) functions, which is also vectorized + in the `v` argument. + + Examples + -------- + >>> import numpy as np + >>> np.searchsorted([11,12,13,14,15], 13) + 2 + >>> np.searchsorted([11,12,13,14,15], 13, side='right') + 3 + >>> np.searchsorted([11,12,13,14,15], [-10, 20, 12, 13]) + array([0, 5, 1, 2]) + + When `sorter` is used, the returned indices refer to the sorted + array of `a` and not `a` itself: + + >>> a = np.array([40, 10, 20, 30]) + >>> sorter = np.argsort(a) + >>> sorter + array([1, 2, 3, 0]) # Indices that would sort the array 'a' + >>> result = np.searchsorted(a, 25, sorter=sorter) + >>> result + 2 + >>> a[sorter[result]] + 30 # The element at index 2 of the sorted array is 30. + """ + return _wrapfunc(a, 'searchsorted', v, side=side, sorter=sorter) + + +def _resize_dispatcher(a, new_shape): + return (a,) + + +@array_function_dispatch(_resize_dispatcher) +def resize(a, new_shape): + """ + Return a new array with the specified shape. + + If the new array is larger than the original array, then the new + array is filled with repeated copies of `a`. Note that this behavior + is different from a.resize(new_shape) which fills with zeros instead + of repeated copies of `a`. + + Parameters + ---------- + a : array_like + Array to be resized. + + new_shape : int or tuple of int + Shape of resized array. + + Returns + ------- + reshaped_array : ndarray + The new array is formed from the data in the old array, repeated + if necessary to fill out the required number of elements. The + data are repeated iterating over the array in C-order. + + See Also + -------- + numpy.reshape : Reshape an array without changing the total size. + numpy.pad : Enlarge and pad an array. + numpy.repeat : Repeat elements of an array. + ndarray.resize : resize an array in-place. + + Notes + ----- + When the total size of the array does not change `~numpy.reshape` should + be used. In most other cases either indexing (to reduce the size) + or padding (to increase the size) may be a more appropriate solution. + + Warning: This functionality does **not** consider axes separately, + i.e. it does not apply interpolation/extrapolation. + It fills the return array with the required number of elements, iterating + over `a` in C-order, disregarding axes (and cycling back from the start if + the new shape is larger). This functionality is therefore not suitable to + resize images, or data where each axis represents a separate and distinct + entity. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[0,1],[2,3]]) + >>> np.resize(a,(2,3)) + array([[0, 1, 2], + [3, 0, 1]]) + >>> np.resize(a,(1,4)) + array([[0, 1, 2, 3]]) + >>> np.resize(a,(2,4)) + array([[0, 1, 2, 3], + [0, 1, 2, 3]]) + + """ + if isinstance(new_shape, (int, nt.integer)): + new_shape = (new_shape,) + + a = ravel(a) + + new_size = 1 + for dim_length in new_shape: + new_size *= dim_length + if dim_length < 0: + raise ValueError( + 'all elements of `new_shape` must be non-negative' + ) + + if a.size == 0 or new_size == 0: + # First case must zero fill. The second would have repeats == 0. + return np.zeros_like(a, shape=new_shape) + + # ceiling division without negating new_size + repeats = (new_size + a.size - 1) // a.size + a = concatenate((a,) * repeats)[:new_size] + + return reshape(a, new_shape) + + +def _squeeze_dispatcher(a, axis=None): + return (a,) + + +@array_function_dispatch(_squeeze_dispatcher) +def squeeze(a, axis=None): + """ + Remove axes of length one from `a`. + + Parameters + ---------- + a : array_like + Input data. + axis : None or int or tuple of ints, optional + Selects a subset of the entries of length one in the + shape. If an axis is selected with shape entry greater than + one, an error is raised. + + Returns + ------- + squeezed : ndarray + The input array, but with all or a subset of the + dimensions of length 1 removed. This is always `a` itself + or a view into `a`. Note that if all axes are squeezed, + the result is a 0d array and not a scalar. + + Raises + ------ + ValueError + If `axis` is not None, and an axis being squeezed is not of length 1 + + See Also + -------- + expand_dims : The inverse operation, adding entries of length one + reshape : Insert, remove, and combine dimensions, and resize existing ones + + Examples + -------- + >>> import numpy as np + >>> x = np.array([[[0], [1], [2]]]) + >>> x.shape + (1, 3, 1) + >>> np.squeeze(x).shape + (3,) + >>> np.squeeze(x, axis=0).shape + (3, 1) + >>> np.squeeze(x, axis=1).shape + Traceback (most recent call last): + ... + ValueError: cannot select an axis to squeeze out which has size + not equal to one + >>> np.squeeze(x, axis=2).shape + (1, 3) + >>> x = np.array([[1234]]) + >>> x.shape + (1, 1) + >>> np.squeeze(x) + array(1234) # 0d array + >>> np.squeeze(x).shape + () + >>> np.squeeze(x)[()] + 1234 + + """ + try: + squeeze = a.squeeze + except AttributeError: + return _wrapit(a, 'squeeze', axis=axis) + if axis is None: + return squeeze() + else: + return squeeze(axis=axis) + + +def _diagonal_dispatcher(a, offset=None, axis1=None, axis2=None): + return (a,) + + +@array_function_dispatch(_diagonal_dispatcher) +def diagonal(a, offset=0, axis1=0, axis2=1): + """ + Return specified diagonals. + + If `a` is 2-D, returns the diagonal of `a` with the given offset, + i.e., the collection of elements of the form ``a[i, i+offset]``. If + `a` has more than two dimensions, then the axes specified by `axis1` + and `axis2` are used to determine the 2-D sub-array whose diagonal is + returned. The shape of the resulting array can be determined by + removing `axis1` and `axis2` and appending an index to the right equal + to the size of the resulting diagonals. + + In versions of NumPy prior to 1.7, this function always returned a new, + independent array containing a copy of the values in the diagonal. + + In NumPy 1.7 and 1.8, it continues to return a copy of the diagonal, + but depending on this fact is deprecated. Writing to the resulting + array continues to work as it used to, but a FutureWarning is issued. + + Starting in NumPy 1.9 it returns a read-only view on the original array. + Attempting to write to the resulting array will produce an error. + + In some future release, it will return a read/write view and writing to + the returned array will alter your original array. The returned array + will have the same type as the input array. + + If you don't write to the array returned by this function, then you can + just ignore all of the above. + + If you depend on the current behavior, then we suggest copying the + returned array explicitly, i.e., use ``np.diagonal(a).copy()`` instead + of just ``np.diagonal(a)``. This will work with both past and future + versions of NumPy. + + Parameters + ---------- + a : array_like + Array from which the diagonals are taken. + offset : int, optional + Offset of the diagonal from the main diagonal. Can be positive or + negative. Defaults to main diagonal (0). + axis1 : int, optional + Axis to be used as the first axis of the 2-D sub-arrays from which + the diagonals should be taken. Defaults to first axis (0). + axis2 : int, optional + Axis to be used as the second axis of the 2-D sub-arrays from + which the diagonals should be taken. Defaults to second axis (1). + + Returns + ------- + array_of_diagonals : ndarray + If `a` is 2-D, then a 1-D array containing the diagonal and of the + same type as `a` is returned unless `a` is a `matrix`, in which case + a 1-D array rather than a (2-D) `matrix` is returned in order to + maintain backward compatibility. + + If ``a.ndim > 2``, then the dimensions specified by `axis1` and `axis2` + are removed, and a new axis inserted at the end corresponding to the + diagonal. + + Raises + ------ + ValueError + If the dimension of `a` is less than 2. + + See Also + -------- + diag : MATLAB work-a-like for 1-D and 2-D arrays. + diagflat : Create diagonal arrays. + trace : Sum along diagonals. + + Examples + -------- + >>> import numpy as np + >>> a = np.arange(4).reshape(2,2) + >>> a + array([[0, 1], + [2, 3]]) + >>> a.diagonal() + array([0, 3]) + >>> a.diagonal(1) + array([1]) + + A 3-D example: + + >>> a = np.arange(8).reshape(2,2,2); a + array([[[0, 1], + [2, 3]], + [[4, 5], + [6, 7]]]) + >>> a.diagonal(0, # Main diagonals of two arrays created by skipping + ... 0, # across the outer(left)-most axis last and + ... 1) # the "middle" (row) axis first. + array([[0, 6], + [1, 7]]) + + The sub-arrays whose main diagonals we just obtained; note that each + corresponds to fixing the right-most (column) axis, and that the + diagonals are "packed" in rows. + + >>> a[:,:,0] # main diagonal is [0 6] + array([[0, 2], + [4, 6]]) + >>> a[:,:,1] # main diagonal is [1 7] + array([[1, 3], + [5, 7]]) + + The anti-diagonal can be obtained by reversing the order of elements + using either `numpy.flipud` or `numpy.fliplr`. + + >>> a = np.arange(9).reshape(3, 3) + >>> a + array([[0, 1, 2], + [3, 4, 5], + [6, 7, 8]]) + >>> np.fliplr(a).diagonal() # Horizontal flip + array([2, 4, 6]) + >>> np.flipud(a).diagonal() # Vertical flip + array([6, 4, 2]) + + Note that the order in which the diagonal is retrieved varies depending + on the flip function. + """ + if isinstance(a, np.matrix): + # Make diagonal of matrix 1-D to preserve backward compatibility. + return asarray(a).diagonal(offset=offset, axis1=axis1, axis2=axis2) + else: + return asanyarray(a).diagonal(offset=offset, axis1=axis1, axis2=axis2) + + +def _trace_dispatcher( + a, offset=None, axis1=None, axis2=None, dtype=None, out=None): + return (a, out) + + +@array_function_dispatch(_trace_dispatcher) +def trace(a, offset=0, axis1=0, axis2=1, dtype=None, out=None): + """ + Return the sum along diagonals of the array. + + If `a` is 2-D, the sum along its diagonal with the given offset + is returned, i.e., the sum of elements ``a[i,i+offset]`` for all i. + + If `a` has more than two dimensions, then the axes specified by axis1 and + axis2 are used to determine the 2-D sub-arrays whose traces are returned. + The shape of the resulting array is the same as that of `a` with `axis1` + and `axis2` removed. + + Parameters + ---------- + a : array_like + Input array, from which the diagonals are taken. + offset : int, optional + Offset of the diagonal from the main diagonal. Can be both positive + and negative. Defaults to 0. + axis1, axis2 : int, optional + Axes to be used as the first and second axis of the 2-D sub-arrays + from which the diagonals should be taken. Defaults are the first two + axes of `a`. + dtype : dtype, optional + Determines the data-type of the returned array and of the accumulator + where the elements are summed. If dtype has the value None and `a` is + of integer type of precision less than the default integer + precision, then the default integer precision is used. Otherwise, + the precision is the same as that of `a`. + out : ndarray, optional + Array into which the output is placed. Its type is preserved and + it must be of the right shape to hold the output. + + Returns + ------- + sum_along_diagonals : ndarray + If `a` is 2-D, the sum along the diagonal is returned. If `a` has + larger dimensions, then an array of sums along diagonals is returned. + + See Also + -------- + diag, diagonal, diagflat + + Examples + -------- + >>> import numpy as np + >>> np.trace(np.eye(3)) + 3.0 + >>> a = np.arange(8).reshape((2,2,2)) + >>> np.trace(a) + array([6, 8]) + + >>> a = np.arange(24).reshape((2,2,2,3)) + >>> np.trace(a).shape + (2, 3) + + """ + if isinstance(a, np.matrix): + # Get trace of matrix via an array to preserve backward compatibility. + return asarray(a).trace( + offset=offset, axis1=axis1, axis2=axis2, dtype=dtype, out=out + ) + else: + return asanyarray(a).trace( + offset=offset, axis1=axis1, axis2=axis2, dtype=dtype, out=out + ) + + +def _ravel_dispatcher(a, order=None): + return (a,) + + +@array_function_dispatch(_ravel_dispatcher) +def ravel(a, order='C'): + """Return a contiguous flattened array. + + A 1-D array, containing the elements of the input, is returned. A copy is + made only if needed. + + As of NumPy 1.10, the returned array will have the same type as the input + array. (for example, a masked array will be returned for a masked array + input) + + Parameters + ---------- + a : array_like + Input array. The elements in `a` are read in the order specified by + `order`, and packed as a 1-D array. + order : {'C','F', 'A', 'K'}, optional + + The elements of `a` are read using this index order. 'C' means + to index the elements in row-major, C-style order, + with the last axis index changing fastest, back to the first + axis index changing slowest. 'F' means to index the elements + in column-major, Fortran-style order, with the + first index changing fastest, and the last index changing + slowest. Note that the 'C' and 'F' options take no account of + the memory layout of the underlying array, and only refer to + the order of axis indexing. 'A' means to read the elements in + Fortran-like index order if `a` is Fortran *contiguous* in + memory, C-like order otherwise. 'K' means to read the + elements in the order they occur in memory, except for + reversing the data when strides are negative. By default, 'C' + index order is used. + + Returns + ------- + y : array_like + y is a contiguous 1-D array of the same subtype as `a`, + with shape ``(a.size,)``. + Note that matrices are special cased for backward compatibility, + if `a` is a matrix, then y is a 1-D ndarray. + + See Also + -------- + ndarray.flat : 1-D iterator over an array. + ndarray.flatten : 1-D array copy of the elements of an array + in row-major order. + ndarray.reshape : Change the shape of an array without changing its data. + + Notes + ----- + In row-major, C-style order, in two dimensions, the row index + varies the slowest, and the column index the quickest. This can + be generalized to multiple dimensions, where row-major order + implies that the index along the first axis varies slowest, and + the index along the last quickest. The opposite holds for + column-major, Fortran-style index ordering. + + When a view is desired in as many cases as possible, ``arr.reshape(-1)`` + may be preferable. However, ``ravel`` supports ``K`` in the optional + ``order`` argument while ``reshape`` does not. + + Examples + -------- + It is equivalent to ``reshape(-1, order=order)``. + + >>> import numpy as np + >>> x = np.array([[1, 2, 3], [4, 5, 6]]) + >>> np.ravel(x) + array([1, 2, 3, 4, 5, 6]) + + >>> x.reshape(-1) + array([1, 2, 3, 4, 5, 6]) + + >>> np.ravel(x, order='F') + array([1, 4, 2, 5, 3, 6]) + + When ``order`` is 'A', it will preserve the array's 'C' or 'F' ordering: + + >>> np.ravel(x.T) + array([1, 4, 2, 5, 3, 6]) + >>> np.ravel(x.T, order='A') + array([1, 2, 3, 4, 5, 6]) + + When ``order`` is 'K', it will preserve orderings that are neither 'C' + nor 'F', but won't reverse axes: + + >>> a = np.arange(3)[::-1]; a + array([2, 1, 0]) + >>> a.ravel(order='C') + array([2, 1, 0]) + >>> a.ravel(order='K') + array([2, 1, 0]) + + >>> a = np.arange(12).reshape(2,3,2).swapaxes(1,2); a + array([[[ 0, 2, 4], + [ 1, 3, 5]], + [[ 6, 8, 10], + [ 7, 9, 11]]]) + >>> a.ravel(order='C') + array([ 0, 2, 4, 1, 3, 5, 6, 8, 10, 7, 9, 11]) + >>> a.ravel(order='K') + array([ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]) + + """ + if isinstance(a, np.matrix): + return asarray(a).ravel(order=order) + else: + return asanyarray(a).ravel(order=order) + + +def _nonzero_dispatcher(a): + return (a,) + + +@array_function_dispatch(_nonzero_dispatcher) +def nonzero(a): + """ + Return the indices of the elements that are non-zero. + + Returns a tuple of arrays, one for each dimension of `a`, + containing the indices of the non-zero elements in that + dimension. The values in `a` are always tested and returned in + row-major, C-style order. + + To group the indices by element, rather than dimension, use `argwhere`, + which returns a row for each non-zero element. + + Parameters + ---------- + a : array_like + Input array. + + Returns + ------- + tuple_of_arrays : tuple + Indices of elements that are non-zero. + + See Also + -------- + flatnonzero : + Return indices that are non-zero in the flattened version of the input + array. + ndarray.nonzero : + Equivalent ndarray method. + count_nonzero : + Counts the number of non-zero elements in the input array. + + Notes + ----- + While the nonzero values can be obtained with ``a[nonzero(a)]``, it is + recommended to use ``x[x.astype(bool)]`` or ``x[x != 0]`` instead, which + will correctly handle 0-d arrays. + + Examples + -------- + >>> import numpy as np + >>> x = np.array([[3, 0, 0], [0, 4, 0], [5, 6, 0]]) + >>> x + array([[3, 0, 0], + [0, 4, 0], + [5, 6, 0]]) + >>> np.nonzero(x) + (array([0, 1, 2, 2]), array([0, 1, 0, 1])) + + >>> x[np.nonzero(x)] + array([3, 4, 5, 6]) + >>> np.transpose(np.nonzero(x)) + array([[0, 0], + [1, 1], + [2, 0], + [2, 1]]) + + A common use for ``nonzero`` is to find the indices of an array, where + a condition is True. Given an array `a`, the condition `a` > 3 is a + boolean array and since False is interpreted as 0, np.nonzero(a > 3) + yields the indices of the `a` where the condition is true. + + >>> a = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]]) + >>> a > 3 + array([[False, False, False], + [ True, True, True], + [ True, True, True]]) + >>> np.nonzero(a > 3) + (array([1, 1, 1, 2, 2, 2]), array([0, 1, 2, 0, 1, 2])) + + Using this result to index `a` is equivalent to using the mask directly: + + >>> a[np.nonzero(a > 3)] + array([4, 5, 6, 7, 8, 9]) + >>> a[a > 3] # prefer this spelling + array([4, 5, 6, 7, 8, 9]) + + ``nonzero`` can also be called as a method of the array. + + >>> (a > 3).nonzero() + (array([1, 1, 1, 2, 2, 2]), array([0, 1, 2, 0, 1, 2])) + + """ + return _wrapfunc(a, 'nonzero') + + +def _shape_dispatcher(a): + return (a,) + + +@array_function_dispatch(_shape_dispatcher) +def shape(a): + """ + Return the shape of an array. + + Parameters + ---------- + a : array_like + Input array. + + Returns + ------- + shape : tuple of ints + The elements of the shape tuple give the lengths of the + corresponding array dimensions. + + See Also + -------- + len : ``len(a)`` is equivalent to ``np.shape(a)[0]`` for N-D arrays with + ``N>=1``. + ndarray.shape : Equivalent array method. + + Examples + -------- + >>> import numpy as np + >>> np.shape(np.eye(3)) + (3, 3) + >>> np.shape([[1, 3]]) + (1, 2) + >>> np.shape([0]) + (1,) + >>> np.shape(0) + () + + >>> a = np.array([(1, 2), (3, 4), (5, 6)], + ... dtype=[('x', 'i4'), ('y', 'i4')]) + >>> np.shape(a) + (3,) + >>> a.shape + (3,) + + """ + try: + result = a.shape + except AttributeError: + result = asarray(a).shape + return result + + +def _compress_dispatcher(condition, a, axis=None, out=None): + return (condition, a, out) + + +@array_function_dispatch(_compress_dispatcher) +def compress(condition, a, axis=None, out=None): + """ + Return selected slices of an array along given axis. + + When working along a given axis, a slice along that axis is returned in + `output` for each index where `condition` evaluates to True. When + working on a 1-D array, `compress` is equivalent to `extract`. + + Parameters + ---------- + condition : 1-D array of bools + Array that selects which entries to return. If len(condition) + is less than the size of `a` along the given axis, then output is + truncated to the length of the condition array. + a : array_like + Array from which to extract a part. + axis : int, optional + Axis along which to take slices. If None (default), work on the + flattened array. + out : ndarray, optional + Output array. Its type is preserved and it must be of the right + shape to hold the output. + + Returns + ------- + compressed_array : ndarray + A copy of `a` without the slices along axis for which `condition` + is false. + + See Also + -------- + take, choose, diag, diagonal, select + ndarray.compress : Equivalent method in ndarray + extract : Equivalent method when working on 1-D arrays + :ref:`ufuncs-output-type` + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1, 2], [3, 4], [5, 6]]) + >>> a + array([[1, 2], + [3, 4], + [5, 6]]) + >>> np.compress([0, 1], a, axis=0) + array([[3, 4]]) + >>> np.compress([False, True, True], a, axis=0) + array([[3, 4], + [5, 6]]) + >>> np.compress([False, True], a, axis=1) + array([[2], + [4], + [6]]) + + Working on the flattened array does not return slices along an axis but + selects elements. + + >>> np.compress([False, True], a) + array([2]) + + """ + return _wrapfunc(a, 'compress', condition, axis=axis, out=out) + + +def _clip_dispatcher(a, a_min=None, a_max=None, out=None, *, min=None, + max=None, **kwargs): + return (a, a_min, a_max, out, min, max) + + +@array_function_dispatch(_clip_dispatcher) +def clip(a, a_min=np._NoValue, a_max=np._NoValue, out=None, *, + min=np._NoValue, max=np._NoValue, **kwargs): + """ + Clip (limit) the values in an array. + + Given an interval, values outside the interval are clipped to + the interval edges. For example, if an interval of ``[0, 1]`` + is specified, values smaller than 0 become 0, and values larger + than 1 become 1. + + Equivalent to but faster than ``np.minimum(a_max, np.maximum(a, a_min))``. + + No check is performed to ensure ``a_min < a_max``. + + Parameters + ---------- + a : array_like + Array containing elements to clip. + a_min, a_max : array_like or None + Minimum and maximum value. If ``None``, clipping is not performed on + the corresponding edge. If both ``a_min`` and ``a_max`` are ``None``, + the elements of the returned array stay the same. Both are broadcasted + against ``a``. + out : ndarray, optional + The results will be placed in this array. It may be the input + array for in-place clipping. `out` must be of the right shape + to hold the output. Its type is preserved. + min, max : array_like or None + Array API compatible alternatives for ``a_min`` and ``a_max`` + arguments. Either ``a_min`` and ``a_max`` or ``min`` and ``max`` + can be passed at the same time. Default: ``None``. + + .. versionadded:: 2.1.0 + **kwargs + For other keyword-only arguments, see the + :ref:`ufunc docs `. + + Returns + ------- + clipped_array : ndarray + An array with the elements of `a`, but where values + < `a_min` are replaced with `a_min`, and those > `a_max` + with `a_max`. + + See Also + -------- + :ref:`ufuncs-output-type` + + Notes + ----- + When `a_min` is greater than `a_max`, `clip` returns an + array in which all values are equal to `a_max`, + as shown in the second example. + + Examples + -------- + >>> import numpy as np + >>> a = np.arange(10) + >>> a + array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]) + >>> np.clip(a, 1, 8) + array([1, 1, 2, 3, 4, 5, 6, 7, 8, 8]) + >>> np.clip(a, 8, 1) + array([1, 1, 1, 1, 1, 1, 1, 1, 1, 1]) + >>> np.clip(a, 3, 6, out=a) + array([3, 3, 3, 3, 4, 5, 6, 6, 6, 6]) + >>> a + array([3, 3, 3, 3, 4, 5, 6, 6, 6, 6]) + >>> a = np.arange(10) + >>> a + array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]) + >>> np.clip(a, [3, 4, 1, 1, 1, 4, 4, 4, 4, 4], 8) + array([3, 4, 2, 3, 4, 5, 6, 7, 8, 8]) + + """ + if a_min is np._NoValue and a_max is np._NoValue: + a_min = None if min is np._NoValue else min + a_max = None if max is np._NoValue else max + elif a_min is np._NoValue: + raise TypeError("clip() missing 1 required positional " + "argument: 'a_min'") + elif a_max is np._NoValue: + raise TypeError("clip() missing 1 required positional " + "argument: 'a_max'") + elif min is not np._NoValue or max is not np._NoValue: + raise ValueError("Passing `min` or `max` keyword argument when " + "`a_min` and `a_max` are provided is forbidden.") + + return _wrapfunc(a, 'clip', a_min, a_max, out=out, **kwargs) + + +def _sum_dispatcher(a, axis=None, dtype=None, out=None, keepdims=None, + initial=None, where=None): + return (a, out) + + +@array_function_dispatch(_sum_dispatcher) +def sum(a, axis=None, dtype=None, out=None, keepdims=np._NoValue, + initial=np._NoValue, where=np._NoValue): + """ + Sum of array elements over a given axis. + + Parameters + ---------- + a : array_like + Elements to sum. + axis : None or int or tuple of ints, optional + Axis or axes along which a sum is performed. The default, + axis=None, will sum all of the elements of the input array. If + axis is negative it counts from the last to the first axis. If + axis is a tuple of ints, a sum is performed on all of the axes + specified in the tuple instead of a single axis or all the axes as + before. + dtype : dtype, optional + The type of the returned array and of the accumulator in which the + elements are summed. The dtype of `a` is used by default unless `a` + has an integer dtype of less precision than the default platform + integer. In that case, if `a` is signed then the platform integer + is used while if `a` is unsigned then an unsigned integer of the + same precision as the platform integer is used. + out : ndarray, optional + Alternative output array in which to place the result. It must have + the same shape as the expected output, but the type of the output + values will be cast if necessary. + keepdims : bool, optional + If this is set to True, the axes which are reduced are left + in the result as dimensions with size one. With this option, + the result will broadcast correctly against the input array. + + If the default value is passed, then `keepdims` will not be + passed through to the `sum` method of sub-classes of + `ndarray`, however any non-default value will be. If the + sub-class' method does not implement `keepdims` any + exceptions will be raised. + initial : scalar, optional + Starting value for the sum. See `~numpy.ufunc.reduce` for details. + where : array_like of bool, optional + Elements to include in the sum. See `~numpy.ufunc.reduce` for details. + + Returns + ------- + sum_along_axis : ndarray + An array with the same shape as `a`, with the specified + axis removed. If `a` is a 0-d array, or if `axis` is None, a scalar + is returned. If an output array is specified, a reference to + `out` is returned. + + See Also + -------- + ndarray.sum : Equivalent method. + add: ``numpy.add.reduce`` equivalent function. + cumsum : Cumulative sum of array elements. + trapezoid : Integration of array values using composite trapezoidal rule. + + mean, average + + Notes + ----- + Arithmetic is modular when using integer types, and no error is + raised on overflow. + + The sum of an empty array is the neutral element 0: + + >>> np.sum([]) + 0.0 + + For floating point numbers the numerical precision of sum (and + ``np.add.reduce``) is in general limited by directly adding each number + individually to the result causing rounding errors in every step. + However, often numpy will use a numerically better approach (partial + pairwise summation) leading to improved precision in many use-cases. + This improved precision is always provided when no ``axis`` is given. + When ``axis`` is given, it will depend on which axis is summed. + Technically, to provide the best speed possible, the improved precision + is only used when the summation is along the fast axis in memory. + Note that the exact precision may vary depending on other parameters. + In contrast to NumPy, Python's ``math.fsum`` function uses a slower but + more precise approach to summation. + Especially when summing a large number of lower precision floating point + numbers, such as ``float32``, numerical errors can become significant. + In such cases it can be advisable to use `dtype="float64"` to use a higher + precision for the output. + + Examples + -------- + >>> import numpy as np + >>> np.sum([0.5, 1.5]) + 2.0 + >>> np.sum([0.5, 0.7, 0.2, 1.5], dtype=np.int32) + np.int32(1) + >>> np.sum([[0, 1], [0, 5]]) + 6 + >>> np.sum([[0, 1], [0, 5]], axis=0) + array([0, 6]) + >>> np.sum([[0, 1], [0, 5]], axis=1) + array([1, 5]) + >>> np.sum([[0, 1], [np.nan, 5]], where=[False, True], axis=1) + array([1., 5.]) + + If the accumulator is too small, overflow occurs: + + >>> np.ones(128, dtype=np.int8).sum(dtype=np.int8) + np.int8(-128) + + You can also start the sum with a value other than zero: + + >>> np.sum([10], initial=5) + 15 + """ + if isinstance(a, _gentype): + # 2018-02-25, 1.15.0 + raise TypeError( + "Calling np.sum(generator) is deprecated." + "Use np.sum(np.fromiter(generator)) or " + "the python sum builtin instead.", + ) + + return _wrapreduction( + a, np.add, 'sum', axis, dtype, out, + keepdims=keepdims, initial=initial, where=where + ) + + +def _any_dispatcher(a, axis=None, out=None, keepdims=None, *, + where=np._NoValue): + return (a, where, out) + + +@array_function_dispatch(_any_dispatcher) +def any(a, axis=None, out=None, keepdims=np._NoValue, *, where=np._NoValue): + """ + Test whether any array element along a given axis evaluates to True. + + Returns single boolean if `axis` is ``None`` + + Parameters + ---------- + a : array_like + Input array or object that can be converted to an array. + axis : None or int or tuple of ints, optional + Axis or axes along which a logical OR reduction is performed. + The default (``axis=None``) is to perform a logical OR over all + the dimensions of the input array. `axis` may be negative, in + which case it counts from the last to the first axis. If this + is a tuple of ints, a reduction is performed on multiple + axes, instead of a single axis or all the axes as before. + out : ndarray, optional + Alternate output array in which to place the result. It must have + the same shape as the expected output and its type is preserved + (e.g., if it is of type float, then it will remain so, returning + 1.0 for True and 0.0 for False, regardless of the type of `a`). + See :ref:`ufuncs-output-type` for more details. + + keepdims : bool, optional + If this is set to True, the axes which are reduced are left + in the result as dimensions with size one. With this option, + the result will broadcast correctly against the input array. + + If the default value is passed, then `keepdims` will not be + passed through to the `any` method of sub-classes of + `ndarray`, however any non-default value will be. If the + sub-class' method does not implement `keepdims` any + exceptions will be raised. + + where : array_like of bool, optional + Elements to include in checking for any `True` values. + See `~numpy.ufunc.reduce` for details. + + .. versionadded:: 1.20.0 + + Returns + ------- + any : bool or ndarray + A new boolean or `ndarray` is returned unless `out` is specified, + in which case a reference to `out` is returned. + + See Also + -------- + ndarray.any : equivalent method + + all : Test whether all elements along a given axis evaluate to True. + + Notes + ----- + Not a Number (NaN), positive infinity and negative infinity evaluate + to `True` because these are not equal to zero. + + .. versionchanged:: 2.0 + Before NumPy 2.0, ``any`` did not return booleans for object dtype + input arrays. + This behavior is still available via ``np.logical_or.reduce``. + + Examples + -------- + >>> import numpy as np + >>> np.any([[True, False], [True, True]]) + True + + >>> np.any([[True, False, True ], + ... [False, False, False]], axis=0) + array([ True, False, True]) + + >>> np.any([-1, 0, 5]) + True + + >>> np.any([[np.nan], [np.inf]], axis=1, keepdims=True) + array([[ True], + [ True]]) + + >>> np.any([[True, False], [False, False]], where=[[False], [True]]) + False + + >>> a = np.array([[1, 0, 0], + ... [0, 0, 1], + ... [0, 0, 0]]) + >>> np.any(a, axis=0) + array([ True, False, True]) + >>> np.any(a, axis=1) + array([ True, True, False]) + + >>> o=np.array(False) + >>> z=np.any([-1, 4, 5], out=o) + >>> z, o + (array(True), array(True)) + >>> # Check now that z is a reference to o + >>> z is o + True + >>> id(z), id(o) # identity of z and o # doctest: +SKIP + (191614240, 191614240) + + """ + return _wrapreduction_any_all(a, np.logical_or, 'any', axis, out, + keepdims=keepdims, where=where) + + +def _all_dispatcher(a, axis=None, out=None, keepdims=None, *, + where=None): + return (a, where, out) + + +@array_function_dispatch(_all_dispatcher) +def all(a, axis=None, out=None, keepdims=np._NoValue, *, where=np._NoValue): + """ + Test whether all array elements along a given axis evaluate to True. + + Parameters + ---------- + a : array_like + Input array or object that can be converted to an array. + axis : None or int or tuple of ints, optional + Axis or axes along which a logical AND reduction is performed. + The default (``axis=None``) is to perform a logical AND over all + the dimensions of the input array. `axis` may be negative, in + which case it counts from the last to the first axis. If this + is a tuple of ints, a reduction is performed on multiple + axes, instead of a single axis or all the axes as before. + out : ndarray, optional + Alternate output array in which to place the result. + It must have the same shape as the expected output and its + type is preserved (e.g., if ``dtype(out)`` is float, the result + will consist of 0.0's and 1.0's). See :ref:`ufuncs-output-type` + for more details. + + keepdims : bool, optional + If this is set to True, the axes which are reduced are left + in the result as dimensions with size one. With this option, + the result will broadcast correctly against the input array. + + If the default value is passed, then `keepdims` will not be + passed through to the `all` method of sub-classes of + `ndarray`, however any non-default value will be. If the + sub-class' method does not implement `keepdims` any + exceptions will be raised. + + where : array_like of bool, optional + Elements to include in checking for all `True` values. + See `~numpy.ufunc.reduce` for details. + + .. versionadded:: 1.20.0 + + Returns + ------- + all : ndarray, bool + A new boolean or array is returned unless `out` is specified, + in which case a reference to `out` is returned. + + See Also + -------- + ndarray.all : equivalent method + + any : Test whether any element along a given axis evaluates to True. + + Notes + ----- + Not a Number (NaN), positive infinity and negative infinity + evaluate to `True` because these are not equal to zero. + + .. versionchanged:: 2.0 + Before NumPy 2.0, ``all`` did not return booleans for object dtype + input arrays. + This behavior is still available via ``np.logical_and.reduce``. + + Examples + -------- + >>> import numpy as np + >>> np.all([[True,False],[True,True]]) + False + + >>> np.all([[True,False],[True,True]], axis=0) + array([ True, False]) + + >>> np.all([-1, 4, 5]) + True + + >>> np.all([1.0, np.nan]) + True + + >>> np.all([[True, True], [False, True]], where=[[True], [False]]) + True + + >>> o=np.array(False) + >>> z=np.all([-1, 4, 5], out=o) + >>> id(z), id(o), z + (28293632, 28293632, array(True)) # may vary + + """ + return _wrapreduction_any_all(a, np.logical_and, 'all', axis, out, + keepdims=keepdims, where=where) + + +def _cumulative_func(x, func, axis, dtype, out, include_initial): + x = np.atleast_1d(x) + x_ndim = x.ndim + if axis is None: + if x_ndim >= 2: + raise ValueError("For arrays which have more than one dimension " + "``axis`` argument is required.") + axis = 0 + + if out is not None and include_initial: + item = [slice(None)] * x_ndim + item[axis] = slice(1, None) + func.accumulate(x, axis=axis, dtype=dtype, out=out[tuple(item)]) + item[axis] = 0 + out[tuple(item)] = func.identity + return out + + res = func.accumulate(x, axis=axis, dtype=dtype, out=out) + if include_initial: + initial_shape = list(x.shape) + initial_shape[axis] = 1 + res = np.concat( + [np.full_like(res, func.identity, shape=initial_shape), res], + axis=axis, + ) + + return res + + +def _cumulative_prod_dispatcher(x, /, *, axis=None, dtype=None, out=None, + include_initial=None): + return (x, out) + + +@array_function_dispatch(_cumulative_prod_dispatcher) +def cumulative_prod(x, /, *, axis=None, dtype=None, out=None, + include_initial=False): + """ + Return the cumulative product of elements along a given axis. + + This function is an Array API compatible alternative to `numpy.cumprod`. + + Parameters + ---------- + x : array_like + Input array. + axis : int, optional + Axis along which the cumulative product is computed. The default + (None) is only allowed for one-dimensional arrays. For arrays + with more than one dimension ``axis`` is required. + dtype : dtype, optional + Type of the returned array, as well as of the accumulator in which + the elements are multiplied. If ``dtype`` is not specified, it + defaults to the dtype of ``x``, unless ``x`` has an integer dtype + with a precision less than that of the default platform integer. + In that case, the default platform integer is used instead. + out : ndarray, optional + Alternative output array in which to place the result. It must + have the same shape and buffer length as the expected output + but the type of the resulting values will be cast if necessary. + See :ref:`ufuncs-output-type` for more details. + include_initial : bool, optional + Boolean indicating whether to include the initial value (ones) as + the first value in the output. With ``include_initial=True`` + the shape of the output is different than the shape of the input. + Default: ``False``. + + Returns + ------- + cumulative_prod_along_axis : ndarray + A new array holding the result is returned unless ``out`` is + specified, in which case a reference to ``out`` is returned. The + result has the same shape as ``x`` if ``include_initial=False``. + + Notes + ----- + Arithmetic is modular when using integer types, and no error is + raised on overflow. + + Examples + -------- + >>> a = np.array([1, 2, 3]) + >>> np.cumulative_prod(a) # intermediate results 1, 1*2 + ... # total product 1*2*3 = 6 + array([1, 2, 6]) + >>> a = np.array([1, 2, 3, 4, 5, 6]) + >>> np.cumulative_prod(a, dtype=float) # specify type of output + array([ 1., 2., 6., 24., 120., 720.]) + + The cumulative product for each column (i.e., over the rows) of ``b``: + + >>> b = np.array([[1, 2, 3], [4, 5, 6]]) + >>> np.cumulative_prod(b, axis=0) + array([[ 1, 2, 3], + [ 4, 10, 18]]) + + The cumulative product for each row (i.e. over the columns) of ``b``: + + >>> np.cumulative_prod(b, axis=1) + array([[ 1, 2, 6], + [ 4, 20, 120]]) + + """ + return _cumulative_func(x, um.multiply, axis, dtype, out, include_initial) + + +def _cumulative_sum_dispatcher(x, /, *, axis=None, dtype=None, out=None, + include_initial=None): + return (x, out) + + +@array_function_dispatch(_cumulative_sum_dispatcher) +def cumulative_sum(x, /, *, axis=None, dtype=None, out=None, + include_initial=False): + """ + Return the cumulative sum of the elements along a given axis. + + This function is an Array API compatible alternative to `numpy.cumsum`. + + Parameters + ---------- + x : array_like + Input array. + axis : int, optional + Axis along which the cumulative sum is computed. The default + (None) is only allowed for one-dimensional arrays. For arrays + with more than one dimension ``axis`` is required. + dtype : dtype, optional + Type of the returned array and of the accumulator in which the + elements are summed. If ``dtype`` is not specified, it defaults + to the dtype of ``x``, unless ``x`` has an integer dtype with + a precision less than that of the default platform integer. + In that case, the default platform integer is used. + out : ndarray, optional + Alternative output array in which to place the result. It must + have the same shape and buffer length as the expected output + but the type will be cast if necessary. See :ref:`ufuncs-output-type` + for more details. + include_initial : bool, optional + Boolean indicating whether to include the initial value (zeros) as + the first value in the output. With ``include_initial=True`` + the shape of the output is different than the shape of the input. + Default: ``False``. + + Returns + ------- + cumulative_sum_along_axis : ndarray + A new array holding the result is returned unless ``out`` is + specified, in which case a reference to ``out`` is returned. The + result has the same shape as ``x`` if ``include_initial=False``. + + See Also + -------- + sum : Sum array elements. + trapezoid : Integration of array values using composite trapezoidal rule. + diff : Calculate the n-th discrete difference along given axis. + + Notes + ----- + Arithmetic is modular when using integer types, and no error is + raised on overflow. + + ``cumulative_sum(a)[-1]`` may not be equal to ``sum(a)`` for + floating-point values since ``sum`` may use a pairwise summation routine, + reducing the roundoff-error. See `sum` for more information. + + Examples + -------- + >>> a = np.array([1, 2, 3, 4, 5, 6]) + >>> a + array([1, 2, 3, 4, 5, 6]) + >>> np.cumulative_sum(a) + array([ 1, 3, 6, 10, 15, 21]) + >>> np.cumulative_sum(a, dtype=float) # specifies type of output value(s) + array([ 1., 3., 6., 10., 15., 21.]) + + >>> b = np.array([[1, 2, 3], [4, 5, 6]]) + >>> np.cumulative_sum(b,axis=0) # sum over rows for each of the 3 columns + array([[1, 2, 3], + [5, 7, 9]]) + >>> np.cumulative_sum(b,axis=1) # sum over columns for each of the 2 rows + array([[ 1, 3, 6], + [ 4, 9, 15]]) + + ``cumulative_sum(c)[-1]`` may not be equal to ``sum(c)`` + + >>> c = np.array([1, 2e-9, 3e-9] * 1000000) + >>> np.cumulative_sum(c)[-1] + 1000000.0050045159 + >>> c.sum() + 1000000.0050000029 + + """ + return _cumulative_func(x, um.add, axis, dtype, out, include_initial) + + +def _cumsum_dispatcher(a, axis=None, dtype=None, out=None): + return (a, out) + + +@array_function_dispatch(_cumsum_dispatcher) +def cumsum(a, axis=None, dtype=None, out=None): + """ + Return the cumulative sum of the elements along a given axis. + + Parameters + ---------- + a : array_like + Input array. + axis : int, optional + Axis along which the cumulative sum is computed. The default + (None) is to compute the cumsum over the flattened array. + dtype : dtype, optional + Type of the returned array and of the accumulator in which the + elements are summed. If `dtype` is not specified, it defaults + to the dtype of `a`, unless `a` has an integer dtype with a + precision less than that of the default platform integer. In + that case, the default platform integer is used. + out : ndarray, optional + Alternative output array in which to place the result. It must + have the same shape and buffer length as the expected output + but the type will be cast if necessary. See :ref:`ufuncs-output-type` + for more details. + + Returns + ------- + cumsum_along_axis : ndarray. + A new array holding the result is returned unless `out` is + specified, in which case a reference to `out` is returned. The + result has the same size as `a`, and the same shape as `a` if + `axis` is not None or `a` is a 1-d array. + + See Also + -------- + cumulative_sum : Array API compatible alternative for ``cumsum``. + sum : Sum array elements. + trapezoid : Integration of array values using composite trapezoidal rule. + diff : Calculate the n-th discrete difference along given axis. + + Notes + ----- + Arithmetic is modular when using integer types, and no error is + raised on overflow. + + ``cumsum(a)[-1]`` may not be equal to ``sum(a)`` for floating-point + values since ``sum`` may use a pairwise summation routine, reducing + the roundoff-error. See `sum` for more information. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1,2,3], [4,5,6]]) + >>> a + array([[1, 2, 3], + [4, 5, 6]]) + >>> np.cumsum(a) + array([ 1, 3, 6, 10, 15, 21]) + >>> np.cumsum(a, dtype=float) # specifies type of output value(s) + array([ 1., 3., 6., 10., 15., 21.]) + + >>> np.cumsum(a,axis=0) # sum over rows for each of the 3 columns + array([[1, 2, 3], + [5, 7, 9]]) + >>> np.cumsum(a,axis=1) # sum over columns for each of the 2 rows + array([[ 1, 3, 6], + [ 4, 9, 15]]) + + ``cumsum(b)[-1]`` may not be equal to ``sum(b)`` + + >>> b = np.array([1, 2e-9, 3e-9] * 1000000) + >>> b.cumsum()[-1] + 1000000.0050045159 + >>> b.sum() + 1000000.0050000029 + + """ + return _wrapfunc(a, 'cumsum', axis=axis, dtype=dtype, out=out) + + +def _ptp_dispatcher(a, axis=None, out=None, keepdims=None): + return (a, out) + + +@array_function_dispatch(_ptp_dispatcher) +def ptp(a, axis=None, out=None, keepdims=np._NoValue): + """ + Range of values (maximum - minimum) along an axis. + + The name of the function comes from the acronym for 'peak to peak'. + + .. warning:: + `ptp` preserves the data type of the array. This means the + return value for an input of signed integers with n bits + (e.g. `numpy.int8`, `numpy.int16`, etc) is also a signed integer + with n bits. In that case, peak-to-peak values greater than + ``2**(n-1)-1`` will be returned as negative values. An example + with a work-around is shown below. + + Parameters + ---------- + a : array_like + Input values. + axis : None or int or tuple of ints, optional + Axis along which to find the peaks. By default, flatten the + array. `axis` may be negative, in + which case it counts from the last to the first axis. + If this is a tuple of ints, a reduction is performed on multiple + axes, instead of a single axis or all the axes as before. + out : array_like + Alternative output array in which to place the result. It must + have the same shape and buffer length as the expected output, + but the type of the output values will be cast if necessary. + + keepdims : bool, optional + If this is set to True, the axes which are reduced are left + in the result as dimensions with size one. With this option, + the result will broadcast correctly against the input array. + + If the default value is passed, then `keepdims` will not be + passed through to the `ptp` method of sub-classes of + `ndarray`, however any non-default value will be. If the + sub-class' method does not implement `keepdims` any + exceptions will be raised. + + Returns + ------- + ptp : ndarray or scalar + The range of a given array - `scalar` if array is one-dimensional + or a new array holding the result along the given axis + + Examples + -------- + >>> import numpy as np + >>> x = np.array([[4, 9, 2, 10], + ... [6, 9, 7, 12]]) + + >>> np.ptp(x, axis=1) + array([8, 6]) + + >>> np.ptp(x, axis=0) + array([2, 0, 5, 2]) + + >>> np.ptp(x) + 10 + + This example shows that a negative value can be returned when + the input is an array of signed integers. + + >>> y = np.array([[1, 127], + ... [0, 127], + ... [-1, 127], + ... [-2, 127]], dtype=np.int8) + >>> np.ptp(y, axis=1) + array([ 126, 127, -128, -127], dtype=int8) + + A work-around is to use the `view()` method to view the result as + unsigned integers with the same bit width: + + >>> np.ptp(y, axis=1).view(np.uint8) + array([126, 127, 128, 129], dtype=uint8) + + """ + kwargs = {} + if keepdims is not np._NoValue: + kwargs['keepdims'] = keepdims + return _methods._ptp(a, axis=axis, out=out, **kwargs) + + +def _max_dispatcher(a, axis=None, out=None, keepdims=None, initial=None, + where=None): + return (a, out) + + +@array_function_dispatch(_max_dispatcher) +@set_module('numpy') +def max(a, axis=None, out=None, keepdims=np._NoValue, initial=np._NoValue, + where=np._NoValue): + """ + Return the maximum of an array or maximum along an axis. + + Parameters + ---------- + a : array_like + Input data. + axis : None or int or tuple of ints, optional + Axis or axes along which to operate. By default, flattened input is + used. If this is a tuple of ints, the maximum is selected over + multiple axes, instead of a single axis or all the axes as before. + + out : ndarray, optional + Alternative output array in which to place the result. Must + be of the same shape and buffer length as the expected output. + See :ref:`ufuncs-output-type` for more details. + + keepdims : bool, optional + If this is set to True, the axes which are reduced are left + in the result as dimensions with size one. With this option, + the result will broadcast correctly against the input array. + + If the default value is passed, then `keepdims` will not be + passed through to the ``max`` method of sub-classes of + `ndarray`, however any non-default value will be. If the + sub-class' method does not implement `keepdims` any + exceptions will be raised. + + initial : scalar, optional + The minimum value of an output element. Must be present to allow + computation on empty slice. See `~numpy.ufunc.reduce` for details. + + where : array_like of bool, optional + Elements to compare for the maximum. See `~numpy.ufunc.reduce` + for details. + + Returns + ------- + max : ndarray or scalar + Maximum of `a`. If `axis` is None, the result is a scalar value. + If `axis` is an int, the result is an array of dimension + ``a.ndim - 1``. If `axis` is a tuple, the result is an array of + dimension ``a.ndim - len(axis)``. + + See Also + -------- + amin : + The minimum value of an array along a given axis, propagating any NaNs. + nanmax : + The maximum value of an array along a given axis, ignoring any NaNs. + maximum : + Element-wise maximum of two arrays, propagating any NaNs. + fmax : + Element-wise maximum of two arrays, ignoring any NaNs. + argmax : + Return the indices of the maximum values. + + nanmin, minimum, fmin + + Notes + ----- + NaN values are propagated, that is if at least one item is NaN, the + corresponding max value will be NaN as well. To ignore NaN values + (MATLAB behavior), please use nanmax. + + Don't use `~numpy.max` for element-wise comparison of 2 arrays; when + ``a.shape[0]`` is 2, ``maximum(a[0], a[1])`` is faster than + ``max(a, axis=0)``. + + Examples + -------- + >>> import numpy as np + >>> a = np.arange(4).reshape((2,2)) + >>> a + array([[0, 1], + [2, 3]]) + >>> np.max(a) # Maximum of the flattened array + 3 + >>> np.max(a, axis=0) # Maxima along the first axis + array([2, 3]) + >>> np.max(a, axis=1) # Maxima along the second axis + array([1, 3]) + >>> np.max(a, where=[False, True], initial=-1, axis=0) + array([-1, 3]) + >>> b = np.arange(5, dtype=float) + >>> b[2] = np.nan + >>> np.max(b) + np.float64(nan) + >>> np.max(b, where=~np.isnan(b), initial=-1) + 4.0 + >>> np.nanmax(b) + 4.0 + + You can use an initial value to compute the maximum of an empty slice, or + to initialize it to a different value: + + >>> np.max([[-50], [10]], axis=-1, initial=0) + array([ 0, 10]) + + Notice that the initial value is used as one of the elements for which the + maximum is determined, unlike for the default argument Python's max + function, which is only used for empty iterables. + + >>> np.max([5], initial=6) + 6 + >>> max([5], default=6) + 5 + """ + return _wrapreduction(a, np.maximum, 'max', axis, None, out, + keepdims=keepdims, initial=initial, where=where) + + +@array_function_dispatch(_max_dispatcher) +def amax(a, axis=None, out=None, keepdims=np._NoValue, initial=np._NoValue, + where=np._NoValue): + """ + Return the maximum of an array or maximum along an axis. + + `amax` is an alias of `~numpy.max`. + + See Also + -------- + max : alias of this function + ndarray.max : equivalent method + """ + return _wrapreduction(a, np.maximum, 'max', axis, None, out, + keepdims=keepdims, initial=initial, where=where) + + +def _min_dispatcher(a, axis=None, out=None, keepdims=None, initial=None, + where=None): + return (a, out) + + +@array_function_dispatch(_min_dispatcher) +def min(a, axis=None, out=None, keepdims=np._NoValue, initial=np._NoValue, + where=np._NoValue): + """ + Return the minimum of an array or minimum along an axis. + + Parameters + ---------- + a : array_like + Input data. + axis : None or int or tuple of ints, optional + Axis or axes along which to operate. By default, flattened input is + used. + + If this is a tuple of ints, the minimum is selected over multiple axes, + instead of a single axis or all the axes as before. + out : ndarray, optional + Alternative output array in which to place the result. Must + be of the same shape and buffer length as the expected output. + See :ref:`ufuncs-output-type` for more details. + + keepdims : bool, optional + If this is set to True, the axes which are reduced are left + in the result as dimensions with size one. With this option, + the result will broadcast correctly against the input array. + + If the default value is passed, then `keepdims` will not be + passed through to the ``min`` method of sub-classes of + `ndarray`, however any non-default value will be. If the + sub-class' method does not implement `keepdims` any + exceptions will be raised. + + initial : scalar, optional + The maximum value of an output element. Must be present to allow + computation on empty slice. See `~numpy.ufunc.reduce` for details. + + where : array_like of bool, optional + Elements to compare for the minimum. See `~numpy.ufunc.reduce` + for details. + + Returns + ------- + min : ndarray or scalar + Minimum of `a`. If `axis` is None, the result is a scalar value. + If `axis` is an int, the result is an array of dimension + ``a.ndim - 1``. If `axis` is a tuple, the result is an array of + dimension ``a.ndim - len(axis)``. + + See Also + -------- + amax : + The maximum value of an array along a given axis, propagating any NaNs. + nanmin : + The minimum value of an array along a given axis, ignoring any NaNs. + minimum : + Element-wise minimum of two arrays, propagating any NaNs. + fmin : + Element-wise minimum of two arrays, ignoring any NaNs. + argmin : + Return the indices of the minimum values. + + nanmax, maximum, fmax + + Notes + ----- + NaN values are propagated, that is if at least one item is NaN, the + corresponding min value will be NaN as well. To ignore NaN values + (MATLAB behavior), please use nanmin. + + Don't use `~numpy.min` for element-wise comparison of 2 arrays; when + ``a.shape[0]`` is 2, ``minimum(a[0], a[1])`` is faster than + ``min(a, axis=0)``. + + Examples + -------- + >>> import numpy as np + >>> a = np.arange(4).reshape((2,2)) + >>> a + array([[0, 1], + [2, 3]]) + >>> np.min(a) # Minimum of the flattened array + 0 + >>> np.min(a, axis=0) # Minima along the first axis + array([0, 1]) + >>> np.min(a, axis=1) # Minima along the second axis + array([0, 2]) + >>> np.min(a, where=[False, True], initial=10, axis=0) + array([10, 1]) + + >>> b = np.arange(5, dtype=float) + >>> b[2] = np.nan + >>> np.min(b) + np.float64(nan) + >>> np.min(b, where=~np.isnan(b), initial=10) + 0.0 + >>> np.nanmin(b) + 0.0 + + >>> np.min([[-50], [10]], axis=-1, initial=0) + array([-50, 0]) + + Notice that the initial value is used as one of the elements for which the + minimum is determined, unlike for the default argument Python's max + function, which is only used for empty iterables. + + Notice that this isn't the same as Python's ``default`` argument. + + >>> np.min([6], initial=5) + 5 + >>> min([6], default=5) + 6 + """ + return _wrapreduction(a, np.minimum, 'min', axis, None, out, + keepdims=keepdims, initial=initial, where=where) + + +@array_function_dispatch(_min_dispatcher) +def amin(a, axis=None, out=None, keepdims=np._NoValue, initial=np._NoValue, + where=np._NoValue): + """ + Return the minimum of an array or minimum along an axis. + + `amin` is an alias of `~numpy.min`. + + See Also + -------- + min : alias of this function + ndarray.min : equivalent method + """ + return _wrapreduction(a, np.minimum, 'min', axis, None, out, + keepdims=keepdims, initial=initial, where=where) + + +def _prod_dispatcher(a, axis=None, dtype=None, out=None, keepdims=None, + initial=None, where=None): + return (a, out) + + +@array_function_dispatch(_prod_dispatcher) +def prod(a, axis=None, dtype=None, out=None, keepdims=np._NoValue, + initial=np._NoValue, where=np._NoValue): + """ + Return the product of array elements over a given axis. + + Parameters + ---------- + a : array_like + Input data. + axis : None or int or tuple of ints, optional + Axis or axes along which a product is performed. The default, + axis=None, will calculate the product of all the elements in the + input array. If axis is negative it counts from the last to the + first axis. + + If axis is a tuple of ints, a product is performed on all of the + axes specified in the tuple instead of a single axis or all the + axes as before. + dtype : dtype, optional + The type of the returned array, as well as of the accumulator in + which the elements are multiplied. The dtype of `a` is used by + default unless `a` has an integer dtype of less precision than the + default platform integer. In that case, if `a` is signed then the + platform integer is used while if `a` is unsigned then an unsigned + integer of the same precision as the platform integer is used. + out : ndarray, optional + Alternative output array in which to place the result. It must have + the same shape as the expected output, but the type of the output + values will be cast if necessary. + keepdims : bool, optional + If this is set to True, the axes which are reduced are left in the + result as dimensions with size one. With this option, the result + will broadcast correctly against the input array. + + If the default value is passed, then `keepdims` will not be + passed through to the `prod` method of sub-classes of + `ndarray`, however any non-default value will be. If the + sub-class' method does not implement `keepdims` any + exceptions will be raised. + initial : scalar, optional + The starting value for this product. See `~numpy.ufunc.reduce` + for details. + where : array_like of bool, optional + Elements to include in the product. See `~numpy.ufunc.reduce` + for details. + + Returns + ------- + product_along_axis : ndarray, see `dtype` parameter above. + An array shaped as `a` but with the specified axis removed. + Returns a reference to `out` if specified. + + See Also + -------- + ndarray.prod : equivalent method + :ref:`ufuncs-output-type` + + Notes + ----- + Arithmetic is modular when using integer types, and no error is + raised on overflow. That means that, on a 32-bit platform: + + >>> x = np.array([536870910, 536870910, 536870910, 536870910]) + >>> np.prod(x) + 16 # may vary + + The product of an empty array is the neutral element 1: + + >>> np.prod([]) + 1.0 + + Examples + -------- + By default, calculate the product of all elements: + + >>> import numpy as np + >>> np.prod([1.,2.]) + 2.0 + + Even when the input array is two-dimensional: + + >>> a = np.array([[1., 2.], [3., 4.]]) + >>> np.prod(a) + 24.0 + + But we can also specify the axis over which to multiply: + + >>> np.prod(a, axis=1) + array([ 2., 12.]) + >>> np.prod(a, axis=0) + array([3., 8.]) + + Or select specific elements to include: + + >>> np.prod([1., np.nan, 3.], where=[True, False, True]) + 3.0 + + If the type of `x` is unsigned, then the output type is + the unsigned platform integer: + + >>> x = np.array([1, 2, 3], dtype=np.uint8) + >>> np.prod(x).dtype == np.uint + True + + If `x` is of a signed integer type, then the output type + is the default platform integer: + + >>> x = np.array([1, 2, 3], dtype=np.int8) + >>> np.prod(x).dtype == int + True + + You can also start the product with a value other than one: + + >>> np.prod([1, 2], initial=5) + 10 + """ + return _wrapreduction(a, np.multiply, 'prod', axis, dtype, out, + keepdims=keepdims, initial=initial, where=where) + + +def _cumprod_dispatcher(a, axis=None, dtype=None, out=None): + return (a, out) + + +@array_function_dispatch(_cumprod_dispatcher) +def cumprod(a, axis=None, dtype=None, out=None): + """ + Return the cumulative product of elements along a given axis. + + Parameters + ---------- + a : array_like + Input array. + axis : int, optional + Axis along which the cumulative product is computed. By default + the input is flattened. + dtype : dtype, optional + Type of the returned array, as well as of the accumulator in which + the elements are multiplied. If *dtype* is not specified, it + defaults to the dtype of `a`, unless `a` has an integer dtype with + a precision less than that of the default platform integer. In + that case, the default platform integer is used instead. + out : ndarray, optional + Alternative output array in which to place the result. It must + have the same shape and buffer length as the expected output + but the type of the resulting values will be cast if necessary. + + Returns + ------- + cumprod : ndarray + A new array holding the result is returned unless `out` is + specified, in which case a reference to out is returned. + + See Also + -------- + cumulative_prod : Array API compatible alternative for ``cumprod``. + :ref:`ufuncs-output-type` + + Notes + ----- + Arithmetic is modular when using integer types, and no error is + raised on overflow. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([1,2,3]) + >>> np.cumprod(a) # intermediate results 1, 1*2 + ... # total product 1*2*3 = 6 + array([1, 2, 6]) + >>> a = np.array([[1, 2, 3], [4, 5, 6]]) + >>> np.cumprod(a, dtype=float) # specify type of output + array([ 1., 2., 6., 24., 120., 720.]) + + The cumulative product for each column (i.e., over the rows) of `a`: + + >>> np.cumprod(a, axis=0) + array([[ 1, 2, 3], + [ 4, 10, 18]]) + + The cumulative product for each row (i.e. over the columns) of `a`: + + >>> np.cumprod(a,axis=1) + array([[ 1, 2, 6], + [ 4, 20, 120]]) + + """ + return _wrapfunc(a, 'cumprod', axis=axis, dtype=dtype, out=out) + + +def _ndim_dispatcher(a): + return (a,) + + +@array_function_dispatch(_ndim_dispatcher) +def ndim(a): + """ + Return the number of dimensions of an array. + + Parameters + ---------- + a : array_like + Input array. If it is not already an ndarray, a conversion is + attempted. + + Returns + ------- + number_of_dimensions : int + The number of dimensions in `a`. Scalars are zero-dimensional. + + See Also + -------- + ndarray.ndim : equivalent method + shape : dimensions of array + ndarray.shape : dimensions of array + + Examples + -------- + >>> import numpy as np + >>> np.ndim([[1,2,3],[4,5,6]]) + 2 + >>> np.ndim(np.array([[1,2,3],[4,5,6]])) + 2 + >>> np.ndim(1) + 0 + + """ + try: + return a.ndim + except AttributeError: + return asarray(a).ndim + + +def _size_dispatcher(a, axis=None): + return (a,) + + +@array_function_dispatch(_size_dispatcher) +def size(a, axis=None): + """ + Return the number of elements along a given axis. + + Parameters + ---------- + a : array_like + Input data. + axis : None or int or tuple of ints, optional + Axis or axes along which the elements are counted. By default, give + the total number of elements. + + .. versionchanged:: 2.4 + Extended to accept multiple axes. + + Returns + ------- + element_count : int + Number of elements along the specified axis. + + See Also + -------- + shape : dimensions of array + ndarray.shape : dimensions of array + ndarray.size : number of elements in array + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1,2,3],[4,5,6]]) + >>> np.size(a) + 6 + >>> np.size(a,axis=1) + 3 + >>> np.size(a,axis=0) + 2 + >>> np.size(a,axis=(0,1)) + 6 + + """ + if axis is None: + try: + return a.size + except AttributeError: + return asarray(a).size + else: + _shape = shape(a) + from .numeric import normalize_axis_tuple + axis = normalize_axis_tuple(axis, len(_shape), allow_duplicate=False) + return math.prod(_shape[ax] for ax in axis) + + +def _round_dispatcher(a, decimals=None, out=None): + return (a, out) + + +@array_function_dispatch(_round_dispatcher) +def round(a, decimals=0, out=None): + """ + Evenly round to the given number of decimals. + + Parameters + ---------- + a : array_like + Input data. + decimals : int, optional + Number of decimal places to round to (default: 0). If + decimals is negative, it specifies the number of positions to + the left of the decimal point. + out : ndarray, optional + Alternative output array in which to place the result. It must have + the same shape as the expected output, but the type of the output + values will be cast if necessary. See :ref:`ufuncs-output-type` + for more details. + + Returns + ------- + rounded_array : ndarray + An array of the same type as `a`, containing the rounded values. + Unless `out` was specified, a new array is created. A reference to + the result is returned. + + The real and imaginary parts of complex numbers are rounded + separately. The result of rounding a float is a float. + + See Also + -------- + ndarray.round : equivalent method + around : an alias for this function + ceil, fix, floor, rint, trunc + + + Notes + ----- + For values exactly halfway between rounded decimal values, NumPy + rounds to the nearest even value. Thus 1.5 and 2.5 round to 2.0, + -0.5 and 0.5 round to 0.0, etc. + + ``np.round`` uses a fast but sometimes inexact algorithm to round + floating-point datatypes. For positive `decimals` it is equivalent to + ``np.true_divide(np.rint(a * 10**decimals), 10**decimals)``, which has + error due to the inexact representation of decimal fractions in the IEEE + floating point standard [1]_ and errors introduced when scaling by powers + of ten. For instance, note the extra "1" in the following: + + >>> np.round(56294995342131.5, 3) + 56294995342131.51 + + If your goal is to print such values with a fixed number of decimals, it is + preferable to use numpy's float printing routines to limit the number of + printed decimals: + + >>> np.format_float_positional(56294995342131.5, precision=3) + '56294995342131.5' + + The float printing routines use an accurate but much more computationally + demanding algorithm to compute the number of digits after the decimal + point. + + Alternatively, Python's builtin `round` function uses a more accurate + but slower algorithm for 64-bit floating point values: + + >>> round(56294995342131.5, 3) + 56294995342131.5 + >>> np.round(16.055, 2), round(16.055, 2) # equals 16.0549999999999997 + (16.06, 16.05) + + + References + ---------- + .. [1] "Lecture Notes on the Status of IEEE 754", William Kahan, + https://people.eecs.berkeley.edu/~wkahan/ieee754status/IEEE754.PDF + + Examples + -------- + >>> import numpy as np + >>> np.round([0.37, 1.64]) + array([0., 2.]) + >>> np.round([0.37, 1.64], decimals=1) + array([0.4, 1.6]) + >>> np.round([.5, 1.5, 2.5, 3.5, 4.5]) # rounds to nearest even value + array([0., 2., 2., 4., 4.]) + >>> np.round([1,2,3,11], decimals=1) # ndarray of ints is returned + array([ 1, 2, 3, 11]) + >>> np.round([1,2,3,11], decimals=-1) + array([ 0, 0, 0, 10]) + + """ + return _wrapfunc(a, 'round', decimals=decimals, out=out) + + +@array_function_dispatch(_round_dispatcher) +def around(a, decimals=0, out=None): + """ + Round an array to the given number of decimals. + + `around` is an alias of `~numpy.round`. + + See Also + -------- + ndarray.round : equivalent method + round : alias for this function + ceil, fix, floor, rint, trunc + + """ + return _wrapfunc(a, 'round', decimals=decimals, out=out) + + +def _mean_dispatcher(a, axis=None, dtype=None, out=None, keepdims=None, *, + where=None): + return (a, where, out) + + +@array_function_dispatch(_mean_dispatcher) +def mean(a, axis=None, dtype=None, out=None, keepdims=np._NoValue, *, + where=np._NoValue): + """ + Compute the arithmetic mean along the specified axis. + + Returns the average of the array elements. The average is taken over + the flattened array by default, otherwise over the specified axis. + `float64` intermediate and return values are used for integer inputs. + + Parameters + ---------- + a : array_like + Array containing numbers whose mean is desired. If `a` is not an + array, a conversion is attempted. + axis : None or int or tuple of ints, optional + Axis or axes along which the means are computed. The default is to + compute the mean of the flattened array. + + If this is a tuple of ints, a mean is performed over multiple axes, + instead of a single axis or all the axes as before. + dtype : data-type, optional + Type to use in computing the mean. For integer inputs, the default + is `float64`; for floating point inputs, it is the same as the + input dtype. + out : ndarray, optional + Alternate output array in which to place the result. The default + is ``None``; if provided, it must have the same shape as the + expected output, but the type will be cast if necessary. + See :ref:`ufuncs-output-type` for more details. + See :ref:`ufuncs-output-type` for more details. + + keepdims : bool, optional + If this is set to True, the axes which are reduced are left + in the result as dimensions with size one. With this option, + the result will broadcast correctly against the input array. + + If the default value is passed, then `keepdims` will not be + passed through to the `mean` method of sub-classes of + `ndarray`, however any non-default value will be. If the + sub-class' method does not implement `keepdims` any + exceptions will be raised. + + where : array_like of bool, optional + Elements to include in the mean. See `~numpy.ufunc.reduce` for details. + + .. versionadded:: 1.20.0 + + Returns + ------- + m : ndarray, see dtype parameter above + If `out=None`, returns a new array containing the mean values, + otherwise a reference to the output array is returned. + + See Also + -------- + average : Weighted average + std, var, nanmean, nanstd, nanvar + + Notes + ----- + The arithmetic mean is the sum of the elements along the axis divided + by the number of elements. + + Note that for floating-point input, the mean is computed using the + same precision the input has. Depending on the input data, this can + cause the results to be inaccurate, especially for `float32` (see + example below). Specifying a higher-precision accumulator using the + `dtype` keyword can alleviate this issue. + + By default, `float16` results are computed using `float32` intermediates + for extra precision. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1, 2], [3, 4]]) + >>> np.mean(a) + 2.5 + >>> np.mean(a, axis=0) + array([2., 3.]) + >>> np.mean(a, axis=1) + array([1.5, 3.5]) + + In single precision, `mean` can be inaccurate: + + >>> a = np.zeros((2, 512*512), dtype=np.float32) + >>> a[0, :] = 1.0 + >>> a[1, :] = 0.1 + >>> np.mean(a) + np.float32(0.54999924) + + Computing the mean in float64 is more accurate: + + >>> np.mean(a, dtype=np.float64) + 0.55000000074505806 # may vary + + Computing the mean in timedelta64 is available: + + >>> b = np.array([1, 3], dtype="timedelta64[D]") + >>> np.mean(b) + np.timedelta64(2,'D') + + Specifying a where argument: + + >>> a = np.array([[5, 9, 13], [14, 10, 12], [11, 15, 19]]) + >>> np.mean(a) + 12.0 + >>> np.mean(a, where=[[True], [False], [False]]) + 9.0 + + """ + kwargs = {} + if keepdims is not np._NoValue: + kwargs['keepdims'] = keepdims + if where is not np._NoValue: + kwargs['where'] = where + if type(a) is not mu.ndarray: + try: + mean = a.mean + except AttributeError: + pass + else: + return mean(axis=axis, dtype=dtype, out=out, **kwargs) + + return _methods._mean(a, axis=axis, dtype=dtype, + out=out, **kwargs) + + +def _std_dispatcher(a, axis=None, dtype=None, out=None, ddof=None, + keepdims=None, *, where=None, mean=None, correction=None): + return (a, where, out, mean) + + +@array_function_dispatch(_std_dispatcher) +def std(a, axis=None, dtype=None, out=None, ddof=0, keepdims=np._NoValue, *, + where=np._NoValue, mean=np._NoValue, correction=np._NoValue): + r""" + Compute the standard deviation along the specified axis. + + Returns the standard deviation, a measure of the spread of a distribution, + of the array elements. The standard deviation is computed for the + flattened array by default, otherwise over the specified axis. + + Parameters + ---------- + a : array_like + Calculate the standard deviation of these values. + axis : None or int or tuple of ints, optional + Axis or axes along which the standard deviation is computed. The + default is to compute the standard deviation of the flattened array. + If this is a tuple of ints, a standard deviation is performed over + multiple axes, instead of a single axis or all the axes as before. + dtype : dtype, optional + Type to use in computing the standard deviation. For arrays of + integer type the default is float64, for arrays of float types it is + the same as the array type. + out : ndarray, optional + Alternative output array in which to place the result. It must have + the same shape as the expected output but the type (of the calculated + values) will be cast if necessary. + See :ref:`ufuncs-output-type` for more details. + ddof : {int, float}, optional + Means Delta Degrees of Freedom. The divisor used in calculations + is ``N - ddof``, where ``N`` represents the number of elements. + By default `ddof` is zero. See Notes for details about use of `ddof`. + keepdims : bool, optional + If this is set to True, the axes which are reduced are left + in the result as dimensions with size one. With this option, + the result will broadcast correctly against the input array. + + If the default value is passed, then `keepdims` will not be + passed through to the `std` method of sub-classes of + `ndarray`, however any non-default value will be. If the + sub-class' method does not implement `keepdims` any + exceptions will be raised. + where : array_like of bool, optional + Elements to include in the standard deviation. + See `~numpy.ufunc.reduce` for details. + + .. versionadded:: 1.20.0 + + mean : array_like, optional + Provide the mean to prevent its recalculation. The mean should have + a shape as if it was calculated with ``keepdims=True``. + The axis for the calculation of the mean should be the same as used in + the call to this std function. + + .. versionadded:: 2.0.0 + + correction : {int, float}, optional + Array API compatible name for the ``ddof`` parameter. Only one of them + can be provided at the same time. + + .. versionadded:: 2.0.0 + + Returns + ------- + standard_deviation : ndarray, see dtype parameter above. + If `out` is None, return a new array containing the standard deviation, + otherwise return a reference to the output array. + + See Also + -------- + var, mean, nanmean, nanstd, nanvar + :ref:`ufuncs-output-type` + + Notes + ----- + There are several common variants of the array standard deviation + calculation. Assuming the input `a` is a one-dimensional NumPy array + and ``mean`` is either provided as an argument or computed as + ``a.mean()``, NumPy computes the standard deviation of an array as:: + + N = len(a) + d2 = abs(a - mean)**2 # abs is for complex `a` + var = d2.sum() / (N - ddof) # note use of `ddof` + std = var**0.5 + + Different values of the argument `ddof` are useful in different + contexts. NumPy's default ``ddof=0`` corresponds with the expression: + + .. math:: + + \sqrt{\frac{\sum_i{|a_i - \bar{a}|^2 }}{N}} + + which is sometimes called the "population standard deviation" in the field + of statistics because it applies the definition of standard deviation to + `a` as if `a` were a complete population of possible observations. + + Many other libraries define the standard deviation of an array + differently, e.g.: + + .. math:: + + \sqrt{\frac{\sum_i{|a_i - \bar{a}|^2 }}{N - 1}} + + In statistics, the resulting quantity is sometimes called the "sample + standard deviation" because if `a` is a random sample from a larger + population, this calculation provides the square root of an unbiased + estimate of the variance of the population. The use of :math:`N-1` in the + denominator is often called "Bessel's correction" because it corrects for + bias (toward lower values) in the variance estimate introduced when the + sample mean of `a` is used in place of the true mean of the population. + The resulting estimate of the standard deviation is still biased, but less + than it would have been without the correction. For this quantity, use + ``ddof=1``. + + Note that, for complex numbers, `std` takes the absolute + value before squaring, so that the result is always real and nonnegative. + + For floating-point input, the standard deviation is computed using the same + precision the input has. Depending on the input data, this can cause + the results to be inaccurate, especially for float32 (see example below). + Specifying a higher-accuracy accumulator using the `dtype` keyword can + alleviate this issue. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1, 2], [3, 4]]) + >>> np.std(a) + 1.1180339887498949 # may vary + >>> np.std(a, axis=0) + array([1., 1.]) + >>> np.std(a, axis=1) + array([0.5, 0.5]) + + In single precision, std() can be inaccurate: + + >>> a = np.zeros((2, 512*512), dtype=np.float32) + >>> a[0, :] = 1.0 + >>> a[1, :] = 0.1 + >>> np.std(a) + np.float32(0.45000005) + + Computing the standard deviation in float64 is more accurate: + + >>> np.std(a, dtype=np.float64) + 0.44999999925494177 # may vary + + Specifying a where argument: + + >>> a = np.array([[14, 8, 11, 10], [7, 9, 10, 11], [10, 15, 5, 10]]) + >>> np.std(a) + 2.614064523559687 # may vary + >>> np.std(a, where=[[True], [True], [False]]) + 2.0 + + Using the mean keyword to save computation time: + + >>> import numpy as np + >>> from timeit import timeit + >>> a = np.array([[14, 8, 11, 10], [7, 9, 10, 11], [10, 15, 5, 10]]) + >>> mean = np.mean(a, axis=1, keepdims=True) + >>> + >>> g = globals() + >>> n = 10000 + >>> t1 = timeit("std = np.std(a, axis=1, mean=mean)", globals=g, number=n) + >>> t2 = timeit("std = np.std(a, axis=1)", globals=g, number=n) + >>> print(f'Percentage execution time saved {100*(t2-t1)/t2:.0f}%') + #doctest: +SKIP + Percentage execution time saved 30% + + """ + kwargs = {} + if keepdims is not np._NoValue: + kwargs['keepdims'] = keepdims + if where is not np._NoValue: + kwargs['where'] = where + if mean is not np._NoValue: + kwargs['mean'] = mean + + if correction != np._NoValue: + if ddof != 0: + raise ValueError( + "ddof and correction can't be provided simultaneously." + ) + else: + ddof = correction + + if type(a) is not mu.ndarray: + try: + std = a.std + except AttributeError: + pass + else: + return std(axis=axis, dtype=dtype, out=out, ddof=ddof, **kwargs) + + return _methods._std(a, axis=axis, dtype=dtype, out=out, ddof=ddof, + **kwargs) + + +def _var_dispatcher(a, axis=None, dtype=None, out=None, ddof=None, + keepdims=None, *, where=None, mean=None, correction=None): + return (a, where, out, mean) + + +@array_function_dispatch(_var_dispatcher) +def var(a, axis=None, dtype=None, out=None, ddof=0, keepdims=np._NoValue, *, + where=np._NoValue, mean=np._NoValue, correction=np._NoValue): + r""" + Compute the variance along the specified axis. + + Returns the variance of the array elements, a measure of the spread of a + distribution. The variance is computed for the flattened array by + default, otherwise over the specified axis. + + Parameters + ---------- + a : array_like + Array containing numbers whose variance is desired. If `a` is not an + array, a conversion is attempted. + axis : None or int or tuple of ints, optional + Axis or axes along which the variance is computed. The default is to + compute the variance of the flattened array. + If this is a tuple of ints, a variance is performed over multiple axes, + instead of a single axis or all the axes as before. + dtype : data-type, optional + Type to use in computing the variance. For arrays of integer type + the default is `float64`; for arrays of float types it is the same as + the array type. + out : ndarray, optional + Alternate output array in which to place the result. It must have + the same shape as the expected output, but the type is cast if + necessary. + ddof : {int, float}, optional + "Delta Degrees of Freedom": the divisor used in the calculation is + ``N - ddof``, where ``N`` represents the number of elements. By + default `ddof` is zero. See notes for details about use of `ddof`. + keepdims : bool, optional + If this is set to True, the axes which are reduced are left + in the result as dimensions with size one. With this option, + the result will broadcast correctly against the input array. + + If the default value is passed, then `keepdims` will not be + passed through to the `var` method of sub-classes of + `ndarray`, however any non-default value will be. If the + sub-class' method does not implement `keepdims` any + exceptions will be raised. + where : array_like of bool, optional + Elements to include in the variance. See `~numpy.ufunc.reduce` for + details. + + .. versionadded:: 1.20.0 + + mean : array like, optional + Provide the mean to prevent its recalculation. The mean should have + a shape as if it was calculated with ``keepdims=True``. + The axis for the calculation of the mean should be the same as used in + the call to this var function. + + .. versionadded:: 2.0.0 + + correction : {int, float}, optional + Array API compatible name for the ``ddof`` parameter. Only one of them + can be provided at the same time. + + .. versionadded:: 2.0.0 + + Returns + ------- + variance : ndarray, see dtype parameter above + If ``out=None``, returns a new array containing the variance; + otherwise, a reference to the output array is returned. + + See Also + -------- + std, mean, nanmean, nanstd, nanvar + :ref:`ufuncs-output-type` + + Notes + ----- + There are several common variants of the array variance calculation. + Assuming the input `a` is a one-dimensional NumPy array and ``mean`` is + either provided as an argument or computed as ``a.mean()``, NumPy + computes the variance of an array as:: + + N = len(a) + d2 = abs(a - mean)**2 # abs is for complex `a` + var = d2.sum() / (N - ddof) # note use of `ddof` + + Different values of the argument `ddof` are useful in different + contexts. NumPy's default ``ddof=0`` corresponds with the expression: + + .. math:: + + \frac{\sum_i{|a_i - \bar{a}|^2 }}{N} + + which is sometimes called the "population variance" in the field of + statistics because it applies the definition of variance to `a` as if `a` + were a complete population of possible observations. + + Many other libraries define the variance of an array differently, e.g.: + + .. math:: + + \frac{\sum_i{|a_i - \bar{a}|^2}}{N - 1} + + In statistics, the resulting quantity is sometimes called the "sample + variance" because if `a` is a random sample from a larger population, + this calculation provides an unbiased estimate of the variance of the + population. The use of :math:`N-1` in the denominator is often called + "Bessel's correction" because it corrects for bias (toward lower values) + in the variance estimate introduced when the sample mean of `a` is used + in place of the true mean of the population. For this quantity, use + ``ddof=1``. + + Note that for complex numbers, the absolute value is taken before + squaring, so that the result is always real and nonnegative. + + For floating-point input, the variance is computed using the same + precision the input has. Depending on the input data, this can cause + the results to be inaccurate, especially for `float32` (see example + below). Specifying a higher-accuracy accumulator using the ``dtype`` + keyword can alleviate this issue. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1, 2], [3, 4]]) + >>> np.var(a) + 1.25 + >>> np.var(a, axis=0) + array([1., 1.]) + >>> np.var(a, axis=1) + array([0.25, 0.25]) + + In single precision, var() can be inaccurate: + + >>> a = np.zeros((2, 512*512), dtype=np.float32) + >>> a[0, :] = 1.0 + >>> a[1, :] = 0.1 + >>> np.var(a) + np.float32(0.20250003) + + Computing the variance in float64 is more accurate: + + >>> np.var(a, dtype=np.float64) + 0.20249999932944759 # may vary + >>> ((1-0.55)**2 + (0.1-0.55)**2)/2 + 0.2025 + + Specifying a where argument: + + >>> a = np.array([[14, 8, 11, 10], [7, 9, 10, 11], [10, 15, 5, 10]]) + >>> np.var(a) + 6.833333333333333 # may vary + >>> np.var(a, where=[[True], [True], [False]]) + 4.0 + + Using the mean keyword to save computation time: + + >>> import numpy as np + >>> from timeit import timeit + >>> + >>> a = np.array([[14, 8, 11, 10], [7, 9, 10, 11], [10, 15, 5, 10]]) + >>> mean = np.mean(a, axis=1, keepdims=True) + >>> + >>> g = globals() + >>> n = 10000 + >>> t1 = timeit("var = np.var(a, axis=1, mean=mean)", globals=g, number=n) + >>> t2 = timeit("var = np.var(a, axis=1)", globals=g, number=n) + >>> print(f'Percentage execution time saved {100*(t2-t1)/t2:.0f}%') + #doctest: +SKIP + Percentage execution time saved 32% + + """ + kwargs = {} + if keepdims is not np._NoValue: + kwargs['keepdims'] = keepdims + if where is not np._NoValue: + kwargs['where'] = where + if mean is not np._NoValue: + kwargs['mean'] = mean + + if correction != np._NoValue: + if ddof != 0: + raise ValueError( + "ddof and correction can't be provided simultaneously." + ) + else: + ddof = correction + + if type(a) is not mu.ndarray: + try: + var = a.var + + except AttributeError: + pass + else: + return var(axis=axis, dtype=dtype, out=out, ddof=ddof, **kwargs) + + return _methods._var(a, axis=axis, dtype=dtype, out=out, ddof=ddof, + **kwargs) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/fromnumeric.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/fromnumeric.pyi new file mode 100644 index 0000000000000000000000000000000000000000..2a9762240e3d55afe2b506464a47575e50a66731 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/fromnumeric.pyi @@ -0,0 +1,1735 @@ +# ruff: noqa: ANN401 +from _typeshed import Incomplete +from collections.abc import Sequence +from typing import ( + Any, + Literal, + Never, + Protocol, + SupportsIndex, + TypeAlias, + TypedDict, + TypeVar, + Unpack, + overload, + type_check_only, +) + +import numpy as np +from numpy import ( + _AnyShapeT, + _CastingKind, + _ModeKind, + _OrderACF, + _OrderKACF, + _PartitionKind, + _SortKind, + _SortSide, + complexfloating, + float16, + floating, + generic, + int64, + int_, + intp, + object_, + timedelta64, + uint64, +) +from numpy._globals import _NoValueType +from numpy._typing import ( + ArrayLike, + DTypeLike, + NDArray, + _AnyShape, + _ArrayLike, + _ArrayLikeBool_co, + _ArrayLikeComplex_co, + _ArrayLikeFloat_co, + _ArrayLikeInt, + _ArrayLikeInt_co, + _ArrayLikeObject_co, + _ArrayLikeUInt_co, + _BoolLike_co, + _ComplexLike_co, + _DTypeLike, + _IntLike_co, + _NestedSequence, + _NumberLike_co, + _ScalarLike_co, + _ShapeLike, +) + +__all__ = [ + "all", + "amax", + "amin", + "any", + "argmax", + "argmin", + "argpartition", + "argsort", + "around", + "choose", + "clip", + "compress", + "cumprod", + "cumsum", + "cumulative_prod", + "cumulative_sum", + "diagonal", + "mean", + "max", + "min", + "matrix_transpose", + "ndim", + "nonzero", + "partition", + "prod", + "ptp", + "put", + "ravel", + "repeat", + "reshape", + "resize", + "round", + "searchsorted", + "shape", + "size", + "sort", + "squeeze", + "std", + "sum", + "swapaxes", + "take", + "trace", + "transpose", + "var", +] + +_ScalarT = TypeVar("_ScalarT", bound=generic) +_NumberOrObjectT = TypeVar("_NumberOrObjectT", bound=np.number | np.object_) +_ArrayT = TypeVar("_ArrayT", bound=np.ndarray[Any, Any]) +_ShapeT = TypeVar("_ShapeT", bound=tuple[int, ...]) +_ShapeT_co = TypeVar("_ShapeT_co", bound=tuple[int, ...], covariant=True) +_BoolOrIntArrayT = TypeVar("_BoolOrIntArrayT", bound=NDArray[np.integer | np.bool]) + +@type_check_only +class _SupportsShape(Protocol[_ShapeT_co]): + # NOTE: it matters that `self` is positional only + @property + def shape(self, /) -> _ShapeT_co: ... + +@type_check_only +class _UFuncKwargs(TypedDict, total=False): + where: _ArrayLikeBool_co | None + order: _OrderKACF + subok: bool + signature: str | tuple[str | None, ...] + casting: _CastingKind + +# a "sequence" that isn't a string, bytes, bytearray, or memoryview +_T = TypeVar("_T") +_PyArray: TypeAlias = list[_T] | tuple[_T, ...] +# `int` also covers `bool` +_PyScalar: TypeAlias = complex | bytes | str + +# TODO: Fix overlapping overloads: https://github.com/numpy/numpy/issues/27032 +@overload +def take( + a: _ArrayLike[_ScalarT], + indices: _IntLike_co, + axis: None = None, + out: None = None, + mode: _ModeKind = "raise", +) -> _ScalarT: ... +@overload +def take( + a: ArrayLike, + indices: _IntLike_co, + axis: SupportsIndex | None = None, + out: None = None, + mode: _ModeKind = "raise", +) -> Any: ... +@overload +def take( + a: _ArrayLike[_ScalarT], + indices: _ArrayLikeInt_co, + axis: SupportsIndex | None = None, + out: None = None, + mode: _ModeKind = "raise", +) -> NDArray[_ScalarT]: ... +@overload +def take( + a: ArrayLike, + indices: _ArrayLikeInt_co, + axis: SupportsIndex | None = None, + out: None = None, + mode: _ModeKind = "raise", +) -> NDArray[Any]: ... +@overload +def take( + a: ArrayLike, + indices: _ArrayLikeInt_co, + axis: SupportsIndex | None, + out: _ArrayT, + mode: _ModeKind = "raise", +) -> _ArrayT: ... +@overload +def take( + a: ArrayLike, + indices: _ArrayLikeInt_co, + axis: SupportsIndex | None = None, + *, + out: _ArrayT, + mode: _ModeKind = "raise", +) -> _ArrayT: ... + +@overload +def reshape( # shape: index + a: _ArrayLike[_ScalarT], + /, + shape: SupportsIndex, + order: _OrderACF = "C", + *, + copy: bool | None = None, +) -> np.ndarray[tuple[int], np.dtype[_ScalarT]]: ... +@overload +def reshape( # shape: (int, ...) @ _AnyShapeT + a: _ArrayLike[_ScalarT], + /, + shape: _AnyShapeT, + order: _OrderACF = "C", + *, + copy: bool | None = None, +) -> np.ndarray[_AnyShapeT, np.dtype[_ScalarT]]: ... +@overload # shape: Sequence[index] +def reshape( + a: _ArrayLike[_ScalarT], + /, + shape: Sequence[SupportsIndex], + order: _OrderACF = "C", + *, + copy: bool | None = None, +) -> NDArray[_ScalarT]: ... +@overload # shape: index +def reshape( + a: ArrayLike, + /, + shape: SupportsIndex, + order: _OrderACF = "C", + *, + copy: bool | None = None, +) -> np.ndarray[tuple[int], np.dtype]: ... +@overload +def reshape( # shape: (int, ...) @ _AnyShapeT + a: ArrayLike, + /, + shape: _AnyShapeT, + order: _OrderACF = "C", + *, + copy: bool | None = None, +) -> np.ndarray[_AnyShapeT, np.dtype]: ... +@overload # shape: Sequence[index] +def reshape( + a: ArrayLike, + /, + shape: Sequence[SupportsIndex], + order: _OrderACF = "C", + *, + copy: bool | None = None, +) -> NDArray[Any]: ... + +@overload +def choose( + a: _IntLike_co, + choices: ArrayLike, + out: None = None, + mode: _ModeKind = "raise", +) -> Any: ... +@overload +def choose( + a: _ArrayLikeInt_co, + choices: _ArrayLike[_ScalarT], + out: None = None, + mode: _ModeKind = "raise", +) -> NDArray[_ScalarT]: ... +@overload +def choose( + a: _ArrayLikeInt_co, + choices: ArrayLike, + out: None = None, + mode: _ModeKind = "raise", +) -> NDArray[Any]: ... +@overload +def choose( + a: _ArrayLikeInt_co, + choices: ArrayLike, + out: _ArrayT, + mode: _ModeKind = "raise", +) -> _ArrayT: ... + +# keep in sync with `ma.core.repeat` +@overload +def repeat( + a: _ArrayLike[_ScalarT], + repeats: _ArrayLikeInt_co, + axis: None = None, +) -> np.ndarray[tuple[int], np.dtype[_ScalarT]]: ... +@overload +def repeat( + a: _ArrayLike[_ScalarT], + repeats: _ArrayLikeInt_co, + axis: SupportsIndex, +) -> NDArray[_ScalarT]: ... +@overload +def repeat( + a: ArrayLike, + repeats: _ArrayLikeInt_co, + axis: None = None, +) -> np.ndarray[tuple[int], np.dtype[Any]]: ... +@overload +def repeat( + a: ArrayLike, + repeats: _ArrayLikeInt_co, + axis: SupportsIndex, +) -> NDArray[Any]: ... + +# +def put( + a: NDArray[Any], + ind: _ArrayLikeInt_co, + v: ArrayLike, + mode: _ModeKind = "raise", +) -> None: ... + +# keep in sync with `ndarray.swapaxes` and `ma.core.swapaxes` +@overload +def swapaxes(a: _ArrayT, axis1: SupportsIndex, axis2: SupportsIndex) -> _ArrayT: ... +@overload +def swapaxes(a: _ArrayLike[_ScalarT], axis1: SupportsIndex, axis2: SupportsIndex) -> NDArray[_ScalarT]: ... +@overload +def swapaxes(a: ArrayLike, axis1: SupportsIndex, axis2: SupportsIndex) -> NDArray[Any]: ... + +@overload +def transpose( + a: _ArrayLike[_ScalarT], + axes: _ShapeLike | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def transpose( + a: ArrayLike, + axes: _ShapeLike | None = None, +) -> NDArray[Any]: ... + +@overload +def matrix_transpose(x: _ArrayLike[_ScalarT], /) -> NDArray[_ScalarT]: ... +@overload +def matrix_transpose(x: ArrayLike, /) -> NDArray[Any]: ... + +# +@overload +def partition( + a: _ArrayLike[_ScalarT], + kth: _ArrayLikeInt, + axis: SupportsIndex | None = -1, + kind: _PartitionKind = "introselect", + order: None = None, +) -> NDArray[_ScalarT]: ... +@overload +def partition( + a: _ArrayLike[np.void], + kth: _ArrayLikeInt, + axis: SupportsIndex | None = -1, + kind: _PartitionKind = "introselect", + order: str | Sequence[str] | None = None, +) -> NDArray[np.void]: ... +@overload +def partition( + a: ArrayLike, + kth: _ArrayLikeInt, + axis: SupportsIndex | None = -1, + kind: _PartitionKind = "introselect", + order: str | Sequence[str] | None = None, +) -> NDArray[Any]: ... + +# +def argpartition( + a: ArrayLike, + kth: _ArrayLikeInt, + axis: SupportsIndex | None = -1, + kind: _PartitionKind = "introselect", + order: str | Sequence[str] | None = None, +) -> NDArray[intp]: ... + +# +@overload +def sort( + a: _ArrayLike[_ScalarT], + axis: SupportsIndex | None = -1, + kind: _SortKind | None = None, + order: str | Sequence[str] | None = None, + *, + stable: bool | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def sort( + a: ArrayLike, + axis: SupportsIndex | None = -1, + kind: _SortKind | None = None, + order: str | Sequence[str] | None = None, + *, + stable: bool | None = None, +) -> NDArray[Any]: ... + +def argsort( + a: ArrayLike, + axis: SupportsIndex | None = -1, + kind: _SortKind | None = None, + order: str | Sequence[str] | None = None, + *, + stable: bool | None = None, +) -> NDArray[intp]: ... + +@overload +def argmax( + a: ArrayLike, + axis: None = None, + out: None = None, + *, + keepdims: Literal[False] | _NoValueType = ..., +) -> intp: ... +@overload +def argmax( + a: ArrayLike, + axis: SupportsIndex | None = None, + out: None = None, + *, + keepdims: bool | _NoValueType = ..., +) -> Any: ... +@overload +def argmax( + a: ArrayLike, + axis: SupportsIndex | None, + out: _BoolOrIntArrayT, + *, + keepdims: bool | _NoValueType = ..., +) -> _BoolOrIntArrayT: ... +@overload +def argmax( + a: ArrayLike, + axis: SupportsIndex | None = None, + *, + out: _BoolOrIntArrayT, + keepdims: bool | _NoValueType = ..., +) -> _BoolOrIntArrayT: ... + +@overload +def argmin( + a: ArrayLike, + axis: None = None, + out: None = None, + *, + keepdims: Literal[False] | _NoValueType = ..., +) -> intp: ... +@overload +def argmin( + a: ArrayLike, + axis: SupportsIndex | None = None, + out: None = None, + *, + keepdims: bool | _NoValueType = ..., +) -> Any: ... +@overload +def argmin( + a: ArrayLike, + axis: SupportsIndex | None, + out: _BoolOrIntArrayT, + *, + keepdims: bool | _NoValueType = ..., +) -> _BoolOrIntArrayT: ... +@overload +def argmin( + a: ArrayLike, + axis: SupportsIndex | None = None, + *, + out: _BoolOrIntArrayT, + keepdims: bool | _NoValueType = ..., +) -> _BoolOrIntArrayT: ... + +# TODO: Fix overlapping overloads: https://github.com/numpy/numpy/issues/27032 +@overload +def searchsorted( + a: ArrayLike, + v: _ScalarLike_co, + side: _SortSide = "left", + sorter: _ArrayLikeInt_co | None = None, # 1D int array +) -> intp: ... +@overload +def searchsorted( + a: ArrayLike, + v: ArrayLike, + side: _SortSide = "left", + sorter: _ArrayLikeInt_co | None = None, # 1D int array +) -> NDArray[intp]: ... + +# TODO: Fix overlapping overloads: https://github.com/numpy/numpy/issues/27032 +@overload +def resize(a: _ArrayLike[_ScalarT], new_shape: SupportsIndex | tuple[SupportsIndex]) -> np.ndarray[tuple[int], np.dtype[_ScalarT]]: ... +@overload +def resize(a: _ArrayLike[_ScalarT], new_shape: _AnyShapeT) -> np.ndarray[_AnyShapeT, np.dtype[_ScalarT]]: ... +@overload +def resize(a: _ArrayLike[_ScalarT], new_shape: _ShapeLike) -> NDArray[_ScalarT]: ... +@overload +def resize(a: ArrayLike, new_shape: SupportsIndex | tuple[SupportsIndex]) -> np.ndarray[tuple[int], np.dtype]: ... +@overload +def resize(a: ArrayLike, new_shape: _AnyShapeT) -> np.ndarray[_AnyShapeT, np.dtype]: ... +@overload +def resize(a: ArrayLike, new_shape: _ShapeLike) -> NDArray[Any]: ... + +# TODO: Fix overlapping overloads: https://github.com/numpy/numpy/issues/27032 +@overload +def squeeze( + a: _ScalarT, + axis: _ShapeLike | None = None, +) -> _ScalarT: ... +@overload +def squeeze( + a: _ArrayLike[_ScalarT], + axis: _ShapeLike | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def squeeze( + a: ArrayLike, + axis: _ShapeLike | None = None, +) -> NDArray[Any]: ... + +# keep in sync with `ma.core.diagonal` +@overload +def diagonal( + a: _ArrayLike[_ScalarT], + offset: SupportsIndex = 0, + axis1: SupportsIndex = 0, + axis2: SupportsIndex = 1, # >= 2D array +) -> NDArray[_ScalarT]: ... +@overload +def diagonal( + a: ArrayLike, + offset: SupportsIndex = 0, + axis1: SupportsIndex = 0, + axis2: SupportsIndex = 1, # >= 2D array +) -> NDArray[Any]: ... + +# keep in sync with `ma.core.trace` +@overload +def trace( + a: ArrayLike, # >= 2D array + offset: SupportsIndex = 0, + axis1: SupportsIndex = 0, + axis2: SupportsIndex = 1, + dtype: DTypeLike | None = None, + out: None = None, +) -> Any: ... +@overload +def trace( + a: ArrayLike, # >= 2D array + offset: SupportsIndex, + axis1: SupportsIndex, + axis2: SupportsIndex, + dtype: DTypeLike | None, + out: _ArrayT, +) -> _ArrayT: ... +@overload +def trace( + a: ArrayLike, # >= 2D array + offset: SupportsIndex = 0, + axis1: SupportsIndex = 0, + axis2: SupportsIndex = 1, + dtype: DTypeLike | None = None, + *, + out: _ArrayT, +) -> _ArrayT: ... + +_Array1D: TypeAlias = np.ndarray[tuple[int], np.dtype[_ScalarT]] + +@overload +def ravel(a: _ArrayLike[_ScalarT], order: _OrderKACF = "C") -> _Array1D[_ScalarT]: ... +@overload +def ravel(a: bytes | _NestedSequence[bytes], order: _OrderKACF = "C") -> _Array1D[np.bytes_]: ... +@overload +def ravel(a: str | _NestedSequence[str], order: _OrderKACF = "C") -> _Array1D[np.str_]: ... +@overload +def ravel(a: bool | _NestedSequence[bool], order: _OrderKACF = "C") -> _Array1D[np.bool]: ... +@overload +def ravel(a: int | _NestedSequence[int], order: _OrderKACF = "C") -> _Array1D[np.int_ | Any]: ... +@overload +def ravel(a: float | _NestedSequence[float], order: _OrderKACF = "C") -> _Array1D[np.float64 | Any]: ... +@overload +def ravel(a: complex | _NestedSequence[complex], order: _OrderKACF = "C") -> _Array1D[np.complex128 | Any]: ... +@overload +def ravel(a: ArrayLike, order: _OrderKACF = "C") -> np.ndarray[tuple[int], np.dtype]: ... + +def nonzero(a: _ArrayLike[Any]) -> tuple[np.ndarray[tuple[int], np.dtype[intp]], ...]: ... + +# this prevents `Any` from being returned with Pyright +@overload +def shape(a: _SupportsShape[Never]) -> _AnyShape: ... +@overload +def shape(a: _SupportsShape[_ShapeT]) -> _ShapeT: ... +@overload +def shape(a: _PyScalar) -> tuple[()]: ... +# `collections.abc.Sequence` can't be used hesre, since `bytes` and `str` are +# subtypes of it, which would make the return types incompatible. +@overload +def shape(a: _PyArray[_PyScalar]) -> tuple[int]: ... +@overload +def shape(a: _PyArray[_PyArray[_PyScalar]]) -> tuple[int, int]: ... +# this overload will be skipped by typecheckers that don't support PEP 688 +@overload +def shape(a: memoryview | bytearray) -> tuple[int]: ... +@overload +def shape(a: ArrayLike) -> _AnyShape: ... + +@overload +def compress( + condition: _ArrayLikeBool_co, # 1D bool array + a: _ArrayLike[_ScalarT], + axis: SupportsIndex | None = None, + out: None = None, +) -> NDArray[_ScalarT]: ... +@overload +def compress( + condition: _ArrayLikeBool_co, # 1D bool array + a: ArrayLike, + axis: SupportsIndex | None = None, + out: None = None, +) -> NDArray[Any]: ... +@overload +def compress( + condition: _ArrayLikeBool_co, # 1D bool array + a: ArrayLike, + axis: SupportsIndex | None, + out: _ArrayT, +) -> _ArrayT: ... +@overload +def compress( + condition: _ArrayLikeBool_co, # 1D bool array + a: ArrayLike, + axis: SupportsIndex | None = None, + *, + out: _ArrayT, +) -> _ArrayT: ... + +# TODO: Fix overlapping overloads: https://github.com/numpy/numpy/issues/27032 +@overload +def clip( + a: _ScalarT, + a_min: ArrayLike | _NoValueType | None = ..., + a_max: ArrayLike | _NoValueType | None = ..., + out: None = None, + *, + min: ArrayLike | _NoValueType | None = ..., + max: ArrayLike | _NoValueType | None = ..., + dtype: None = None, + **kwargs: Unpack[_UFuncKwargs], +) -> _ScalarT: ... +@overload +def clip( + a: _ScalarLike_co, + a_min: ArrayLike | _NoValueType | None = ..., + a_max: ArrayLike | _NoValueType | None = ..., + out: None = None, + *, + min: ArrayLike | _NoValueType | None = ..., + max: ArrayLike | _NoValueType | None = ..., + dtype: None = None, + **kwargs: Unpack[_UFuncKwargs], +) -> Any: ... +@overload +def clip( + a: _ArrayLike[_ScalarT], + a_min: ArrayLike | _NoValueType | None = ..., + a_max: ArrayLike | _NoValueType | None = ..., + out: None = None, + *, + min: ArrayLike | _NoValueType | None = ..., + max: ArrayLike | _NoValueType | None = ..., + dtype: None = None, + **kwargs: Unpack[_UFuncKwargs], +) -> NDArray[_ScalarT]: ... +@overload +def clip( + a: ArrayLike, + a_min: ArrayLike | _NoValueType | None = ..., + a_max: ArrayLike | _NoValueType | None = ..., + out: None = None, + *, + min: ArrayLike | _NoValueType | None = ..., + max: ArrayLike | _NoValueType | None = ..., + dtype: None = None, + **kwargs: Unpack[_UFuncKwargs], +) -> NDArray[Any]: ... +@overload +def clip( + a: ArrayLike, + a_min: ArrayLike | None, + a_max: ArrayLike | None, + out: _ArrayT, + *, + min: ArrayLike | _NoValueType | None = ..., + max: ArrayLike | _NoValueType | None = ..., + dtype: DTypeLike | None = None, + **kwargs: Unpack[_UFuncKwargs], +) -> _ArrayT: ... +@overload +def clip( + a: ArrayLike, + a_min: ArrayLike | _NoValueType | None = ..., + a_max: ArrayLike | _NoValueType | None = ..., + *, + out: _ArrayT, + min: ArrayLike | _NoValueType | None = ..., + max: ArrayLike | _NoValueType | None = ..., + dtype: DTypeLike | None = None, + **kwargs: Unpack[_UFuncKwargs], +) -> _ArrayT: ... +@overload +def clip( + a: ArrayLike, + a_min: ArrayLike | _NoValueType | None = ..., + a_max: ArrayLike | _NoValueType | None = ..., + out: None = None, + *, + min: ArrayLike | _NoValueType | None = ..., + max: ArrayLike | _NoValueType | None = ..., + dtype: DTypeLike | None = None, + **kwargs: Unpack[_UFuncKwargs], +) -> Any: ... + +@overload +def sum( + a: _ArrayLike[_ScalarT], + axis: None = None, + dtype: None = None, + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ScalarT: ... +@overload +def sum( + a: _ArrayLike[_ScalarT], + axis: None = None, + dtype: None = None, + out: None = None, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ScalarT | NDArray[_ScalarT]: ... +@overload +def sum( + a: ArrayLike, + axis: None, + dtype: _DTypeLike[_ScalarT], + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ScalarT: ... +@overload +def sum( + a: ArrayLike, + axis: None = None, + *, + dtype: _DTypeLike[_ScalarT], + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ScalarT: ... +@overload +def sum( + a: ArrayLike, + axis: _ShapeLike | None, + dtype: _DTypeLike[_ScalarT], + out: None = None, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ScalarT | NDArray[_ScalarT]: ... +@overload +def sum( + a: ArrayLike, + axis: _ShapeLike | None = None, + *, + dtype: _DTypeLike[_ScalarT], + out: None = None, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ScalarT | NDArray[_ScalarT]: ... +@overload +def sum( + a: ArrayLike, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + out: None = None, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> Any: ... +@overload +def sum( + a: ArrayLike, + axis: _ShapeLike | None, + dtype: DTypeLike | None, + out: _ArrayT, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ArrayT: ... +@overload +def sum( + a: ArrayLike, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + *, + out: _ArrayT, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ArrayT: ... + +# keep in sync with `any` +@overload +def all( + a: ArrayLike | None, + axis: None = None, + out: None = None, + keepdims: Literal[False, 0] | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> np.bool: ... +@overload +def all( + a: ArrayLike | None, + axis: int | tuple[int, ...] | None = None, + out: None = None, + keepdims: _BoolLike_co | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> Incomplete: ... +@overload +def all( + a: ArrayLike | None, + axis: int | tuple[int, ...] | None, + out: _ArrayT, + keepdims: _BoolLike_co | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ArrayT: ... +@overload +def all( + a: ArrayLike | None, + axis: int | tuple[int, ...] | None = None, + *, + out: _ArrayT, + keepdims: _BoolLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ArrayT: ... + +# keep in sync with `all` +@overload +def any( + a: ArrayLike | None, + axis: None = None, + out: None = None, + keepdims: Literal[False, 0] | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> np.bool: ... +@overload +def any( + a: ArrayLike | None, + axis: int | tuple[int, ...] | None = None, + out: None = None, + keepdims: _BoolLike_co | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> Incomplete: ... +@overload +def any( + a: ArrayLike | None, + axis: int | tuple[int, ...] | None, + out: _ArrayT, + keepdims: _BoolLike_co | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ArrayT: ... +@overload +def any( + a: ArrayLike | None, + axis: int | tuple[int, ...] | None = None, + *, + out: _ArrayT, + keepdims: _BoolLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ArrayT: ... + +# +@overload +def cumsum( + a: _ArrayLike[_ScalarT], + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, +) -> NDArray[_ScalarT]: ... +@overload +def cumsum( + a: ArrayLike, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, +) -> NDArray[Any]: ... +@overload +def cumsum( + a: ArrayLike, + axis: SupportsIndex | None, + dtype: _DTypeLike[_ScalarT], + out: None = None, +) -> NDArray[_ScalarT]: ... +@overload +def cumsum( + a: ArrayLike, + axis: SupportsIndex | None = None, + *, + dtype: _DTypeLike[_ScalarT], + out: None = None, +) -> NDArray[_ScalarT]: ... +@overload +def cumsum( + a: ArrayLike, + axis: SupportsIndex | None = None, + dtype: DTypeLike | None = None, + out: None = None, +) -> NDArray[Any]: ... +@overload +def cumsum( + a: ArrayLike, + axis: SupportsIndex | None, + dtype: DTypeLike | None, + out: _ArrayT, +) -> _ArrayT: ... +@overload +def cumsum( + a: ArrayLike, + axis: SupportsIndex | None = None, + dtype: DTypeLike | None = None, + *, + out: _ArrayT, +) -> _ArrayT: ... + +@overload +def cumulative_sum( + x: _ArrayLike[_ScalarT], + /, + *, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, + include_initial: bool = False, +) -> NDArray[_ScalarT]: ... +@overload +def cumulative_sum( + x: ArrayLike, + /, + *, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, + include_initial: bool = False, +) -> NDArray[Any]: ... +@overload +def cumulative_sum( + x: ArrayLike, + /, + *, + axis: SupportsIndex | None = None, + dtype: _DTypeLike[_ScalarT], + out: None = None, + include_initial: bool = False, +) -> NDArray[_ScalarT]: ... +@overload +def cumulative_sum( + x: ArrayLike, + /, + *, + axis: SupportsIndex | None = None, + dtype: DTypeLike | None = None, + out: None = None, + include_initial: bool = False, +) -> NDArray[Any]: ... +@overload +def cumulative_sum( + x: ArrayLike, + /, + *, + axis: SupportsIndex | None = None, + dtype: DTypeLike | None = None, + out: _ArrayT, + include_initial: bool = False, +) -> _ArrayT: ... + +@overload +def ptp( + a: _ArrayLike[_ScalarT], + axis: None = None, + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., +) -> _ScalarT: ... +@overload +def ptp( + a: ArrayLike, + axis: _ShapeLike | None = None, + out: None = None, + keepdims: bool | _NoValueType = ..., +) -> Any: ... +@overload +def ptp( + a: ArrayLike, + axis: _ShapeLike | None, + out: _ArrayT, + keepdims: bool | _NoValueType = ..., +) -> _ArrayT: ... +@overload +def ptp( + a: ArrayLike, + axis: _ShapeLike | None = None, + *, + out: _ArrayT, + keepdims: bool | _NoValueType = ..., +) -> _ArrayT: ... + +@overload +def amax( + a: _ArrayLike[_ScalarT], + axis: None = None, + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ScalarT: ... +@overload +def amax( + a: ArrayLike, + axis: _ShapeLike | None = None, + out: None = None, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> Any: ... +@overload +def amax( + a: ArrayLike, + axis: _ShapeLike | None, + out: _ArrayT, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ArrayT: ... +@overload +def amax( + a: ArrayLike, + axis: _ShapeLike | None = None, + *, + out: _ArrayT, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ArrayT: ... + +@overload +def amin( + a: _ArrayLike[_ScalarT], + axis: None = None, + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ScalarT: ... +@overload +def amin( + a: ArrayLike, + axis: _ShapeLike | None = None, + out: None = None, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> Any: ... +@overload +def amin( + a: ArrayLike, + axis: _ShapeLike | None, + out: _ArrayT, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ArrayT: ... +@overload +def amin( + a: ArrayLike, + axis: _ShapeLike | None = None, + *, + out: _ArrayT, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ArrayT: ... + +# TODO: `np.prod()``: For object arrays `initial` does not necessarily +# have to be a numerical scalar. +# The only requirement is that it is compatible +# with the `.__mul__()` method(s) of the passed array's elements. +# Note that the same situation holds for all wrappers around +# `np.ufunc.reduce`, e.g. `np.sum()` (`.__add__()`). +# TODO: Fix overlapping overloads: https://github.com/numpy/numpy/issues/27032 +@overload +def prod( + a: _ArrayLikeBool_co, + axis: None = None, + dtype: None = None, + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> int_: ... +@overload +def prod( + a: _ArrayLikeUInt_co, + axis: None = None, + dtype: None = None, + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> uint64: ... +@overload +def prod( + a: _ArrayLikeInt_co, + axis: None = None, + dtype: None = None, + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> int64: ... +@overload +def prod( + a: _ArrayLikeFloat_co, + axis: None = None, + dtype: None = None, + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> floating: ... +@overload +def prod( + a: _ArrayLikeComplex_co, + axis: None = None, + dtype: None = None, + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> complexfloating: ... +@overload +def prod( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None = None, + dtype: None = None, + out: None = None, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> Any: ... +@overload +def prod( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: None, + dtype: _DTypeLike[_ScalarT], + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ScalarT: ... +@overload +def prod( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: None = None, + *, + dtype: _DTypeLike[_ScalarT], + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ScalarT: ... +@overload +def prod( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + out: None = None, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> Any: ... +@overload +def prod( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None, + dtype: DTypeLike | None, + out: _ArrayT, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ArrayT: ... +@overload +def prod( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + *, + out: _ArrayT, + keepdims: bool | _NoValueType = ..., + initial: _NumberLike_co | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ArrayT: ... + +# TODO: Fix overlapping overloads: https://github.com/numpy/numpy/issues/27032 +@overload +def cumprod( + a: _ArrayLikeBool_co, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, +) -> NDArray[int_]: ... +@overload +def cumprod( + a: _ArrayLikeUInt_co, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, +) -> NDArray[uint64]: ... +@overload +def cumprod( + a: _ArrayLikeInt_co, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, +) -> NDArray[int64]: ... +@overload +def cumprod( + a: _ArrayLikeFloat_co, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, +) -> NDArray[floating]: ... +@overload +def cumprod( + a: _ArrayLikeComplex_co, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, +) -> NDArray[complexfloating]: ... +@overload +def cumprod( + a: _ArrayLikeObject_co, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, +) -> NDArray[object_]: ... +@overload +def cumprod( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: SupportsIndex | None, + dtype: _DTypeLike[_ScalarT], + out: None = None, +) -> NDArray[_ScalarT]: ... +@overload +def cumprod( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: SupportsIndex | None = None, + *, + dtype: _DTypeLike[_ScalarT], + out: None = None, +) -> NDArray[_ScalarT]: ... +@overload +def cumprod( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: SupportsIndex | None = None, + dtype: DTypeLike | None = None, + out: None = None, +) -> NDArray[Any]: ... +@overload +def cumprod( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: SupportsIndex | None, + dtype: DTypeLike | None, + out: _ArrayT, +) -> _ArrayT: ... +@overload +def cumprod( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: SupportsIndex | None = None, + dtype: DTypeLike | None = None, + *, + out: _ArrayT, +) -> _ArrayT: ... + +# TODO: Fix overlapping overloads: https://github.com/numpy/numpy/issues/27032 +@overload +def cumulative_prod( + x: _ArrayLikeBool_co, + /, + *, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, + include_initial: bool = False, +) -> NDArray[int_]: ... +@overload +def cumulative_prod( + x: _ArrayLikeUInt_co, + /, + *, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, + include_initial: bool = False, +) -> NDArray[uint64]: ... +@overload +def cumulative_prod( + x: _ArrayLikeInt_co, + /, + *, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, + include_initial: bool = False, +) -> NDArray[int64]: ... +@overload +def cumulative_prod( + x: _ArrayLikeFloat_co, + /, + *, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, + include_initial: bool = False, +) -> NDArray[floating]: ... +@overload +def cumulative_prod( + x: _ArrayLikeComplex_co, + /, + *, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, + include_initial: bool = False, +) -> NDArray[complexfloating]: ... +@overload +def cumulative_prod( + x: _ArrayLikeObject_co, + /, + *, + axis: SupportsIndex | None = None, + dtype: None = None, + out: None = None, + include_initial: bool = False, +) -> NDArray[object_]: ... +@overload +def cumulative_prod( + x: _ArrayLikeComplex_co | _ArrayLikeObject_co, + /, + *, + axis: SupportsIndex | None = None, + dtype: _DTypeLike[_ScalarT], + out: None = None, + include_initial: bool = False, +) -> NDArray[_ScalarT]: ... +@overload +def cumulative_prod( + x: _ArrayLikeComplex_co | _ArrayLikeObject_co, + /, + *, + axis: SupportsIndex | None = None, + dtype: DTypeLike | None = None, + out: None = None, + include_initial: bool = False, +) -> NDArray[Any]: ... +@overload +def cumulative_prod( + x: _ArrayLikeComplex_co | _ArrayLikeObject_co, + /, + *, + axis: SupportsIndex | None = None, + dtype: DTypeLike | None = None, + out: _ArrayT, + include_initial: bool = False, +) -> _ArrayT: ... + +def ndim(a: ArrayLike) -> int: ... + +def size(a: ArrayLike, axis: int | tuple[int, ...] | None = None) -> int: ... + +# TODO: Fix overlapping overloads: https://github.com/numpy/numpy/issues/27032 +@overload +def around( + a: _BoolLike_co, + decimals: SupportsIndex = 0, + out: None = None, +) -> float16: ... +@overload +def around( + a: _NumberOrObjectT, + decimals: SupportsIndex = 0, + out: None = None, +) -> _NumberOrObjectT: ... +@overload +def around( + a: _ComplexLike_co | object_, + decimals: SupportsIndex = 0, + out: None = None, +) -> Any: ... +@overload +def around( + a: _ArrayLikeBool_co, + decimals: SupportsIndex = 0, + out: None = None, +) -> NDArray[float16]: ... +@overload +def around( + a: _ArrayLike[_NumberOrObjectT], + decimals: SupportsIndex = 0, + out: None = None, +) -> NDArray[_NumberOrObjectT]: ... +@overload +def around( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + decimals: SupportsIndex = 0, + out: None = None, +) -> NDArray[Any]: ... +@overload +def around( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + decimals: SupportsIndex, + out: _ArrayT, +) -> _ArrayT: ... +@overload +def around( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + decimals: SupportsIndex = 0, + *, + out: _ArrayT, +) -> _ArrayT: ... + +# TODO: Fix overlapping overloads: https://github.com/numpy/numpy/issues/27032 +@overload +def mean( + a: _ArrayLikeFloat_co, + axis: None = None, + dtype: None = None, + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> floating: ... +@overload +def mean( + a: _ArrayLikeComplex_co, + axis: None = None, + dtype: None = None, + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> complexfloating: ... +@overload +def mean( + a: _ArrayLike[np.timedelta64], + axis: None = None, + dtype: None = None, + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> timedelta64: ... +@overload +def mean( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None, + dtype: DTypeLike | None, + out: _ArrayT, + keepdims: bool | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ArrayT: ... +@overload +def mean( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + *, + out: _ArrayT, + keepdims: bool | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ArrayT: ... +@overload +def mean( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: None, + dtype: _DTypeLike[_ScalarT], + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ScalarT: ... +@overload +def mean( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: None = None, + *, + dtype: _DTypeLike[_ScalarT], + out: None = None, + keepdims: Literal[False] | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ScalarT: ... +@overload +def mean( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None, + dtype: _DTypeLike[_ScalarT], + out: None, + keepdims: Literal[True, 1], + *, + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> NDArray[_ScalarT]: ... +@overload +def mean( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None, + dtype: _DTypeLike[_ScalarT], + out: None = None, + *, + keepdims: bool | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ScalarT | NDArray[_ScalarT]: ... +@overload +def mean( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None = None, + *, + dtype: _DTypeLike[_ScalarT], + out: None = None, + keepdims: bool | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> _ScalarT | NDArray[_ScalarT]: ... +@overload +def mean( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + out: None = None, + keepdims: bool | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., +) -> Incomplete: ... + +@overload +def std( + a: _ArrayLikeComplex_co, + axis: None = None, + dtype: None = None, + out: None = None, + ddof: float = 0, + keepdims: Literal[False] | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeComplex_co | _NoValueType = ..., + correction: float | _NoValueType = ..., +) -> floating: ... +@overload +def std( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None = None, + dtype: None = None, + out: None = None, + ddof: float = 0, + keepdims: bool | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeComplex_co | _ArrayLikeObject_co | _NoValueType = ..., + correction: float | _NoValueType = ..., +) -> Any: ... +@overload +def std( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: None, + dtype: _DTypeLike[_ScalarT], + out: None = None, + ddof: float = 0, + keepdims: Literal[False] | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeComplex_co | _ArrayLikeObject_co | _NoValueType = ..., + correction: float | _NoValueType = ..., +) -> _ScalarT: ... +@overload +def std( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: None = None, + *, + dtype: _DTypeLike[_ScalarT], + out: None = None, + ddof: float = 0, + keepdims: Literal[False] | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeComplex_co | _ArrayLikeObject_co | _NoValueType = ..., + correction: float | _NoValueType = ..., +) -> _ScalarT: ... +@overload +def std( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + out: None = None, + ddof: float = 0, + keepdims: bool | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeComplex_co | _ArrayLikeObject_co | _NoValueType = ..., + correction: float | _NoValueType = ..., +) -> Any: ... +@overload +def std( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None, + dtype: DTypeLike | None, + out: _ArrayT, + ddof: float = 0, + keepdims: bool | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeComplex_co | _ArrayLikeObject_co | _NoValueType = ..., + correction: float | _NoValueType = ..., +) -> _ArrayT: ... +@overload +def std( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + *, + out: _ArrayT, + ddof: float = 0, + keepdims: bool | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeComplex_co | _ArrayLikeObject_co | _NoValueType = ..., + correction: float | _NoValueType = ..., +) -> _ArrayT: ... + +@overload +def var( + a: _ArrayLikeComplex_co, + axis: None = None, + dtype: None = None, + out: None = None, + ddof: float = 0, + keepdims: Literal[False] | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeComplex_co | _NoValueType = ..., + correction: float | _NoValueType = ..., +) -> floating: ... +@overload +def var( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None = None, + dtype: None = None, + out: None = None, + ddof: float = 0, + keepdims: bool | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeComplex_co | _ArrayLikeObject_co | _NoValueType = ..., + correction: float | _NoValueType = ..., +) -> Any: ... +@overload +def var( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: None, + dtype: _DTypeLike[_ScalarT], + out: None = None, + ddof: float = 0, + keepdims: Literal[False] | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeComplex_co | _ArrayLikeObject_co | _NoValueType = ..., + correction: float | _NoValueType = ..., +) -> _ScalarT: ... +@overload +def var( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: None = None, + *, + dtype: _DTypeLike[_ScalarT], + out: None = None, + ddof: float = 0, + keepdims: Literal[False] | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeComplex_co | _ArrayLikeObject_co | _NoValueType = ..., + correction: float | _NoValueType = ..., +) -> _ScalarT: ... +@overload +def var( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + out: None = None, + ddof: float = 0, + keepdims: bool | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeComplex_co | _ArrayLikeObject_co | _NoValueType = ..., + correction: float | _NoValueType = ..., +) -> Any: ... +@overload +def var( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None, + dtype: DTypeLike | None, + out: _ArrayT, + ddof: float = 0, + keepdims: bool | _NoValueType = ..., + *, + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeComplex_co | _ArrayLikeObject_co | _NoValueType = ..., + correction: float | _NoValueType = ..., +) -> _ArrayT: ... +@overload +def var( + a: _ArrayLikeComplex_co | _ArrayLikeObject_co, + axis: _ShapeLike | None = None, + dtype: DTypeLike | None = None, + *, + out: _ArrayT, + ddof: float = 0, + keepdims: bool | _NoValueType = ..., + where: _ArrayLikeBool_co | _NoValueType = ..., + mean: _ArrayLikeComplex_co | _ArrayLikeObject_co | _NoValueType = ..., + correction: float | _NoValueType = ..., +) -> _ArrayT: ... + +max = amax +min = amin +round = around diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/function_base.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/function_base.py new file mode 100644 index 0000000000000000000000000000000000000000..7fcc6b4f770a82e8f8127377d33017376533c45c --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/function_base.py @@ -0,0 +1,547 @@ +import functools +import inspect +import operator +import types +import warnings + +import numpy as np +from numpy._core import overrides +from numpy._core._multiarray_umath import _array_converter +from numpy._core.multiarray import add_docstring + +from . import numeric as _nx +from .numeric import asanyarray, nan, ndim, result_type + +__all__ = ['logspace', 'linspace', 'geomspace'] + + +array_function_dispatch = functools.partial( + overrides.array_function_dispatch, module='numpy') + + +def _linspace_dispatcher(start, stop, num=None, endpoint=None, retstep=None, + dtype=None, axis=None, *, device=None): + return (start, stop) + + +@array_function_dispatch(_linspace_dispatcher) +def linspace(start, stop, num=50, endpoint=True, retstep=False, dtype=None, + axis=0, *, device=None): + """ + Return evenly spaced numbers over a specified interval. + + Returns `num` evenly spaced samples, calculated over the + interval [`start`, `stop`]. + + The endpoint of the interval can optionally be excluded. + + .. versionchanged:: 1.20.0 + Values are rounded towards ``-inf`` instead of ``0`` when an + integer ``dtype`` is specified. The old behavior can + still be obtained with ``np.linspace(start, stop, num).astype(int)`` + + Parameters + ---------- + start : array_like + The starting value of the sequence. + stop : array_like + The end value of the sequence, unless `endpoint` is set to False. + In that case, the sequence consists of all but the last of ``num + 1`` + evenly spaced samples, so that `stop` is excluded. Note that the step + size changes when `endpoint` is False. + num : int, optional + Number of samples to generate. Default is 50. Must be non-negative. + endpoint : bool, optional + If True, `stop` is the last sample. Otherwise, it is not included. + Default is True. + retstep : bool, optional + If True, return (`samples`, `step`), where `step` is the spacing + between samples. + dtype : dtype, optional + The type of the output array. If `dtype` is not given, the data type + is inferred from `start` and `stop`. The inferred dtype will never be + an integer; `float` is chosen even if the arguments would produce an + array of integers. + axis : int, optional + The axis in the result to store the samples. Relevant only if start + or stop are array-like. By default (0), the samples will be along a + new axis inserted at the beginning. Use -1 to get an axis at the end. + device : str, optional + The device on which to place the created array. Default: None. + For Array-API interoperability only, so must be ``"cpu"`` if passed. + + .. versionadded:: 2.0.0 + + Returns + ------- + samples : ndarray + There are `num` equally spaced samples in the closed interval + ``[start, stop]`` or the half-open interval ``[start, stop)`` + (depending on whether `endpoint` is True or False). + step : float, optional + Only returned if `retstep` is True + + Size of spacing between samples. + + + See Also + -------- + arange : Similar to `linspace`, but uses a step size (instead of the + number of samples). + geomspace : Similar to `linspace`, but with numbers spaced evenly on a log + scale (a geometric progression). + logspace : Similar to `geomspace`, but with the end points specified as + logarithms. + :ref:`how-to-partition` + + Examples + -------- + >>> import numpy as np + >>> np.linspace(2.0, 3.0, num=5) + array([2. , 2.25, 2.5 , 2.75, 3. ]) + >>> np.linspace(2.0, 3.0, num=5, endpoint=False) + array([2. , 2.2, 2.4, 2.6, 2.8]) + >>> np.linspace(2.0, 3.0, num=5, retstep=True) + (array([2. , 2.25, 2.5 , 2.75, 3. ]), 0.25) + + Graphical illustration: + + >>> import matplotlib.pyplot as plt + >>> N = 8 + >>> y = np.zeros(N) + >>> x1 = np.linspace(0, 10, N, endpoint=True) + >>> x2 = np.linspace(0, 10, N, endpoint=False) + >>> plt.plot(x1, y, 'o') + [] + >>> plt.plot(x2, y + 0.5, 'o') + [] + >>> plt.ylim([-0.5, 1]) + (-0.5, 1) + >>> plt.show() + + """ + num = operator.index(num) + if num < 0: + raise ValueError( + f"Number of samples, {num}, must be non-negative." + ) + div = (num - 1) if endpoint else num + + conv = _array_converter(start, stop) + start, stop = conv.as_arrays() + dt = conv.result_type(ensure_inexact=True) + + if dtype is None: + dtype = dt + integer_dtype = False + else: + integer_dtype = _nx.issubdtype(dtype, _nx.integer) + + # Use `dtype=type(dt)` to enforce a floating point evaluation: + delta = np.subtract(stop, start, dtype=type(dt)) + y = _nx.arange( + 0, num, dtype=dt, device=device + ).reshape((-1,) + (1,) * ndim(delta)) + + # In-place multiplication y *= delta/div is faster, but prevents + # the multiplicant from overriding what class is produced, and thus + # prevents, e.g. use of Quantities, see gh-7142. Hence, we multiply + # in place only for standard scalar types. + if div > 0: + _mult_inplace = _nx.isscalar(delta) + step = delta / div + any_step_zero = ( + step == 0 if _mult_inplace else _nx.asanyarray(step == 0).any()) + if any_step_zero: + # Special handling for denormal numbers, gh-5437 + y /= div + if _mult_inplace: + y *= delta + else: + y = y * delta + elif _mult_inplace: + y *= step + else: + y = y * step + else: + # sequences with 0 items or 1 item with endpoint=True (i.e. div <= 0) + # have an undefined step + step = nan + # Multiply with delta to allow possible override of output class. + y = y * delta + + y += start + + if endpoint and num > 1: + y[-1, ...] = stop + + if axis != 0: + y = _nx.moveaxis(y, 0, axis) + + if integer_dtype: + _nx.floor(y, out=y) + + y = conv.wrap(y.astype(dtype, copy=False)) + if retstep: + return y, step + else: + return y + + +def _logspace_dispatcher(start, stop, num=None, endpoint=None, base=None, + dtype=None, axis=None): + return (start, stop, base) + + +@array_function_dispatch(_logspace_dispatcher) +def logspace(start, stop, num=50, endpoint=True, base=10.0, dtype=None, + axis=0): + """ + Return numbers spaced evenly on a log scale. + + In linear space, the sequence starts at ``base ** start`` + (`base` to the power of `start`) and ends with ``base ** stop`` + (see `endpoint` below). + + .. versionchanged:: 1.25.0 + Non-scalar 'base` is now supported + + Parameters + ---------- + start : array_like + ``base ** start`` is the starting value of the sequence. + stop : array_like + ``base ** stop`` is the final value of the sequence, unless `endpoint` + is False. In that case, ``num + 1`` values are spaced over the + interval in log-space, of which all but the last (a sequence of + length `num`) are returned. + num : integer, optional + Number of samples to generate. Default is 50. + endpoint : boolean, optional + If true, `stop` is the last sample. Otherwise, it is not included. + Default is True. + base : array_like, optional + The base of the log space. The step size between the elements in + ``ln(samples) / ln(base)`` (or ``log_base(samples)``) is uniform. + Default is 10.0. + dtype : dtype + The type of the output array. If `dtype` is not given, the data type + is inferred from `start` and `stop`. The inferred type will never be + an integer; `float` is chosen even if the arguments would produce an + array of integers. + axis : int, optional + The axis in the result to store the samples. Relevant only if start, + stop, or base are array-like. By default (0), the samples will be + along a new axis inserted at the beginning. Use -1 to get an axis at + the end. + + Returns + ------- + samples : ndarray + `num` samples, equally spaced on a log scale. + + See Also + -------- + arange : Similar to linspace, with the step size specified instead of the + number of samples. Note that, when used with a float endpoint, the + endpoint may or may not be included. + linspace : Similar to logspace, but with the samples uniformly distributed + in linear space, instead of log space. + geomspace : Similar to logspace, but with endpoints specified directly. + :ref:`how-to-partition` + + Notes + ----- + If base is a scalar, logspace is equivalent to the code + + >>> y = np.linspace(start, stop, num=num, endpoint=endpoint) + ... # doctest: +SKIP + >>> power(base, y).astype(dtype) + ... # doctest: +SKIP + + Examples + -------- + >>> import numpy as np + >>> np.logspace(2.0, 3.0, num=4) + array([ 100. , 215.443469 , 464.15888336, 1000. ]) + >>> np.logspace(2.0, 3.0, num=4, endpoint=False) + array([100. , 177.827941 , 316.22776602, 562.34132519]) + >>> np.logspace(2.0, 3.0, num=4, base=2.0) + array([4. , 5.0396842 , 6.34960421, 8. ]) + >>> np.logspace(2.0, 3.0, num=4, base=[2.0, 3.0], axis=-1) + array([[ 4. , 5.0396842 , 6.34960421, 8. ], + [ 9. , 12.98024613, 18.72075441, 27. ]]) + + Graphical illustration: + + >>> import matplotlib.pyplot as plt + >>> N = 10 + >>> x1 = np.logspace(0.1, 1, N, endpoint=True) + >>> x2 = np.logspace(0.1, 1, N, endpoint=False) + >>> y = np.zeros(N) + >>> plt.plot(x1, y, 'o') + [] + >>> plt.plot(x2, y + 0.5, 'o') + [] + >>> plt.ylim([-0.5, 1]) + (-0.5, 1) + >>> plt.show() + + """ + if not isinstance(base, (float, int)) and np.ndim(base): + # If base is non-scalar, broadcast it with the others, since it + # may influence how axis is interpreted. + ndmax = np.broadcast(start, stop, base).ndim + start, stop, base = ( + np.array(a, copy=None, subok=True, ndmin=ndmax) + for a in (start, stop, base) + ) + base = np.expand_dims(base, axis=axis) + y = linspace(start, stop, num=num, endpoint=endpoint, axis=axis) + if dtype is None: + return _nx.power(base, y) + return _nx.power(base, y).astype(dtype, copy=False) + + +def _geomspace_dispatcher(start, stop, num=None, endpoint=None, dtype=None, + axis=None): + return (start, stop) + + +@array_function_dispatch(_geomspace_dispatcher) +def geomspace(start, stop, num=50, endpoint=True, dtype=None, axis=0): + """ + Return numbers spaced evenly on a log scale (a geometric progression). + + This is similar to `logspace`, but with endpoints specified directly. + Each output sample is a constant multiple of the previous. + + Parameters + ---------- + start : array_like + The starting value of the sequence. + stop : array_like + The final value of the sequence, unless `endpoint` is False. + In that case, ``num + 1`` values are spaced over the + interval in log-space, of which all but the last (a sequence of + length `num`) are returned. + num : integer, optional + Number of samples to generate. Default is 50. + endpoint : boolean, optional + If true, `stop` is the last sample. Otherwise, it is not included. + Default is True. + dtype : dtype + The type of the output array. If `dtype` is not given, the data type + is inferred from `start` and `stop`. The inferred dtype will never be + an integer; `float` is chosen even if the arguments would produce an + array of integers. + axis : int, optional + The axis in the result to store the samples. Relevant only if start + or stop are array-like. By default (0), the samples will be along a + new axis inserted at the beginning. Use -1 to get an axis at the end. + + Returns + ------- + samples : ndarray + `num` samples, equally spaced on a log scale. + + See Also + -------- + logspace : Similar to geomspace, but with endpoints specified using log + and base. + linspace : Similar to geomspace, but with arithmetic instead of geometric + progression. + arange : Similar to linspace, with the step size specified instead of the + number of samples. + :ref:`how-to-partition` + + Notes + ----- + If the inputs or dtype are complex, the output will follow a logarithmic + spiral in the complex plane. (There are an infinite number of spirals + passing through two points; the output will follow the shortest such path.) + + Examples + -------- + >>> import numpy as np + >>> np.geomspace(1, 1000, num=4) + array([ 1., 10., 100., 1000.]) + >>> np.geomspace(1, 1000, num=3, endpoint=False) + array([ 1., 10., 100.]) + >>> np.geomspace(1, 1000, num=4, endpoint=False) + array([ 1. , 5.62341325, 31.6227766 , 177.827941 ]) + >>> np.geomspace(1, 256, num=9) + array([ 1., 2., 4., 8., 16., 32., 64., 128., 256.]) + + Note that the above may not produce exact integers: + + >>> np.geomspace(1, 256, num=9, dtype=int) + array([ 1, 2, 4, 7, 16, 32, 63, 127, 256]) + >>> np.around(np.geomspace(1, 256, num=9)).astype(int) + array([ 1, 2, 4, 8, 16, 32, 64, 128, 256]) + + Negative, decreasing, and complex inputs are allowed: + + >>> np.geomspace(1000, 1, num=4) + array([1000., 100., 10., 1.]) + >>> np.geomspace(-1000, -1, num=4) + array([-1000., -100., -10., -1.]) + >>> np.geomspace(1j, 1000j, num=4) # Straight line + array([0. +1.j, 0. +10.j, 0. +100.j, 0.+1000.j]) + >>> np.geomspace(-1+0j, 1+0j, num=5) # Circle + array([-1.00000000e+00+1.22464680e-16j, -7.07106781e-01+7.07106781e-01j, + 6.12323400e-17+1.00000000e+00j, 7.07106781e-01+7.07106781e-01j, + 1.00000000e+00+0.00000000e+00j]) + + Graphical illustration of `endpoint` parameter: + + >>> import matplotlib.pyplot as plt + >>> N = 10 + >>> y = np.zeros(N) + >>> plt.semilogx(np.geomspace(1, 1000, N, endpoint=True), y + 1, 'o') + [] + >>> plt.semilogx(np.geomspace(1, 1000, N, endpoint=False), y + 2, 'o') + [] + >>> plt.axis([0.5, 2000, 0, 3]) + [0.5, 2000, 0, 3] + >>> plt.grid(True, color='0.7', linestyle='-', which='both', axis='both') + >>> plt.show() + + """ + start = asanyarray(start) + stop = asanyarray(stop) + if _nx.any(start == 0) or _nx.any(stop == 0): + raise ValueError('Geometric sequence cannot include zero') + + dt = result_type(start, stop, float(num), _nx.zeros((), dtype)) + if dtype is None: + dtype = dt + else: + # complex to dtype('complex128'), for instance + dtype = _nx.dtype(dtype) + + # Promote both arguments to the same dtype in case, for instance, one is + # complex and another is negative and log would produce NaN otherwise. + # Copy since we may change things in-place further down. + start = start.astype(dt, copy=True) + stop = stop.astype(dt, copy=True) + + # Allow negative real values and ensure a consistent result for complex + # (including avoiding negligible real or imaginary parts in output) by + # rotating start to positive real, calculating, then undoing rotation. + out_sign = _nx.sign(start) + start /= out_sign + stop = stop / out_sign + + log_start = _nx.log10(start) + log_stop = _nx.log10(stop) + result = logspace(log_start, log_stop, num=num, + endpoint=endpoint, base=10.0, dtype=dt) + + # Make sure the endpoints match the start and stop arguments. This is + # necessary because np.exp(np.log(x)) is not necessarily equal to x. + if num > 0: + result[0] = start + if num > 1 and endpoint: + result[-1] = stop + + result *= out_sign + + if axis != 0: + result = _nx.moveaxis(result, 0, axis) + + return result.astype(dtype, copy=False) + + +def _needs_add_docstring(obj): + """ + Returns true if the only way to set the docstring of `obj` from python is + via add_docstring. + + This function errs on the side of being overly conservative. + """ + Py_TPFLAGS_HEAPTYPE = 1 << 9 + + if isinstance(obj, (types.FunctionType, types.MethodType, property)): + return False + + if isinstance(obj, type) and obj.__flags__ & Py_TPFLAGS_HEAPTYPE: + return False + + return True + + +def _add_docstring(obj, doc, warn_on_python): + if warn_on_python and not _needs_add_docstring(obj): + warnings.warn( + f"add_newdoc was used on a pure-python object {obj}. " + "Prefer to attach it directly to the source.", + UserWarning, + stacklevel=3) + + doc = inspect.cleandoc(doc) + + try: + add_docstring(obj, doc) + except Exception: + pass + + +def add_newdoc(place, obj, doc, warn_on_python=True): + """ + Add documentation to an existing object, typically one defined in C + + The purpose is to allow easier editing of the docstrings without requiring + a re-compile. This exists primarily for internal use within numpy itself. + + Parameters + ---------- + place : str + The absolute name of the module to import from + obj : str | None + The name of the object to add documentation to, typically a class or + function name. + doc : str | tuple[str, str] | list[tuple[str, str]] + If a string, the documentation to apply to `obj` + + If a tuple, then the first element is interpreted as an attribute + of `obj` and the second as the docstring to apply - + ``(method, docstring)`` + + If a list, then each element of the list should be a tuple of length + two - ``[(method1, docstring1), (method2, docstring2), ...]`` + warn_on_python : bool + If True, the default, emit `UserWarning` if this is used to attach + documentation to a pure-python object. + + Notes + ----- + This routine never raises an error if the docstring can't be written, but + will raise an error if the object being documented does not exist. + + This routine cannot modify read-only docstrings, as appear + in new-style classes or built-in functions. Because this + routine never raises an error the caller must check manually + that the docstrings were changed. + + Since this function grabs the ``char *`` from a c-level str object and puts + it into the ``tp_doc`` slot of the type of `obj`, it violates a number of + C-API best-practices, by: + + - modifying a `PyTypeObject` after calling `PyType_Ready` + - calling `Py_INCREF` on the str and losing the reference, so the str + will never be released + + If possible it should be avoided. + """ + new = getattr(__import__(place, globals(), {}, [obj]), obj) + if isinstance(doc, str): + if "${ARRAY_FUNCTION_LIKE}" in doc: + doc = overrides.get_array_function_like_doc(new, doc) + _add_docstring(new, doc, warn_on_python) + elif isinstance(doc, tuple): + attr, docstring = doc + _add_docstring(getattr(new, attr), docstring, warn_on_python) + elif isinstance(doc, list): + for attr, docstring in doc: + _add_docstring(getattr(new, attr), docstring, warn_on_python) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/function_base.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/function_base.pyi new file mode 100644 index 0000000000000000000000000000000000000000..19e1238c4e1538cfa97cad9b32839b04ef705c72 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/function_base.pyi @@ -0,0 +1,276 @@ +from _typeshed import Incomplete +from typing import Literal as L, SupportsIndex, TypeAlias, TypeVar, overload + +import numpy as np +from numpy._typing import ( + DTypeLike, + NDArray, + _ArrayLikeComplex_co, + _ArrayLikeFloat_co, + _DTypeLike, +) +from numpy._typing._array_like import _DualArrayLike + +__all__ = ["geomspace", "linspace", "logspace"] + +_ScalarT = TypeVar("_ScalarT", bound=np.generic) + +_ToArrayFloat64: TypeAlias = _DualArrayLike[np.dtype[np.float64 | np.integer | np.bool], float] + +@overload +def linspace( + start: _ToArrayFloat64, + stop: _ToArrayFloat64, + num: SupportsIndex = 50, + endpoint: bool = True, + retstep: L[False] = False, + dtype: None = None, + axis: SupportsIndex = 0, + *, + device: L["cpu"] | None = None, +) -> NDArray[np.float64]: ... +@overload +def linspace( + start: _ArrayLikeFloat_co, + stop: _ArrayLikeFloat_co, + num: SupportsIndex = 50, + endpoint: bool = True, + retstep: L[False] = False, + dtype: None = None, + axis: SupportsIndex = 0, + *, + device: L["cpu"] | None = None, +) -> NDArray[np.floating]: ... +@overload +def linspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex = 50, + endpoint: bool = True, + retstep: L[False] = False, + dtype: None = None, + axis: SupportsIndex = 0, + *, + device: L["cpu"] | None = None, +) -> NDArray[np.complexfloating]: ... +@overload +def linspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex, + endpoint: bool, + retstep: L[False], + dtype: _DTypeLike[_ScalarT], + axis: SupportsIndex = 0, + *, + device: L["cpu"] | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def linspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex = 50, + endpoint: bool = True, + retstep: L[False] = False, + *, + dtype: _DTypeLike[_ScalarT], + axis: SupportsIndex = 0, + device: L["cpu"] | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def linspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex = 50, + endpoint: bool = True, + retstep: L[False] = False, + dtype: DTypeLike | None = None, + axis: SupportsIndex = 0, + *, + device: L["cpu"] | None = None, +) -> NDArray[Incomplete]: ... +@overload +def linspace( + start: _ToArrayFloat64, + stop: _ToArrayFloat64, + num: SupportsIndex = 50, + endpoint: bool = True, + *, + retstep: L[True], + dtype: None = None, + axis: SupportsIndex = 0, + device: L["cpu"] | None = None, +) -> tuple[NDArray[np.float64], np.float64]: ... +@overload +def linspace( + start: _ArrayLikeFloat_co, + stop: _ArrayLikeFloat_co, + num: SupportsIndex = 50, + endpoint: bool = True, + *, + retstep: L[True], + dtype: None = None, + axis: SupportsIndex = 0, + device: L["cpu"] | None = None, +) -> tuple[NDArray[np.floating], np.floating]: ... +@overload +def linspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex = 50, + endpoint: bool = True, + *, + retstep: L[True], + dtype: None = None, + axis: SupportsIndex = 0, + device: L["cpu"] | None = None, +) -> tuple[NDArray[np.complexfloating], np.complexfloating]: ... +@overload +def linspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex = 50, + endpoint: bool = True, + *, + retstep: L[True], + dtype: _DTypeLike[_ScalarT], + axis: SupportsIndex = 0, + device: L["cpu"] | None = None, +) -> tuple[NDArray[_ScalarT], _ScalarT]: ... +@overload +def linspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex = 50, + endpoint: bool = True, + *, + retstep: L[True], + dtype: DTypeLike | None = None, + axis: SupportsIndex = 0, + device: L["cpu"] | None = None, +) -> tuple[NDArray[Incomplete], Incomplete]: ... + +@overload +def logspace( + start: _ToArrayFloat64, + stop: _ToArrayFloat64, + num: SupportsIndex = 50, + endpoint: bool = True, + base: _ToArrayFloat64 = 10.0, + dtype: None = None, + axis: SupportsIndex = 0, +) -> NDArray[np.float64]: ... +@overload +def logspace( + start: _ArrayLikeFloat_co, + stop: _ArrayLikeFloat_co, + num: SupportsIndex = 50, + endpoint: bool = True, + base: _ArrayLikeFloat_co = 10.0, + dtype: None = None, + axis: SupportsIndex = 0, +) -> NDArray[np.floating]: ... +@overload +def logspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex = 50, + endpoint: bool = True, + base: _ArrayLikeComplex_co = 10.0, + dtype: None = None, + axis: SupportsIndex = 0, +) -> NDArray[np.complexfloating]: ... +@overload +def logspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex, + endpoint: bool, + base: _ArrayLikeComplex_co, + dtype: _DTypeLike[_ScalarT], + axis: SupportsIndex = 0, +) -> NDArray[_ScalarT]: ... +@overload +def logspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex = 50, + endpoint: bool = True, + base: _ArrayLikeComplex_co = 10.0, + *, + dtype: _DTypeLike[_ScalarT], + axis: SupportsIndex = 0, +) -> NDArray[_ScalarT]: ... +@overload +def logspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex = 50, + endpoint: bool = True, + base: _ArrayLikeComplex_co = 10.0, + dtype: DTypeLike | None = None, + axis: SupportsIndex = 0, +) -> NDArray[Incomplete]: ... + +@overload +def geomspace( + start: _ToArrayFloat64, + stop: _ToArrayFloat64, + num: SupportsIndex = 50, + endpoint: bool = True, + dtype: None = None, + axis: SupportsIndex = 0, +) -> NDArray[np.float64]: ... +@overload +def geomspace( + start: _ArrayLikeFloat_co, + stop: _ArrayLikeFloat_co, + num: SupportsIndex = 50, + endpoint: bool = True, + dtype: None = None, + axis: SupportsIndex = 0, +) -> NDArray[np.floating]: ... +@overload +def geomspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex = 50, + endpoint: bool = True, + dtype: None = None, + axis: SupportsIndex = 0, +) -> NDArray[np.complexfloating]: ... +@overload +def geomspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex, + endpoint: bool, + dtype: _DTypeLike[_ScalarT], + axis: SupportsIndex = 0, +) -> NDArray[_ScalarT]: ... +@overload +def geomspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex = 50, + endpoint: bool = True, + *, + dtype: _DTypeLike[_ScalarT], + axis: SupportsIndex = 0, +) -> NDArray[_ScalarT]: ... +@overload +def geomspace( + start: _ArrayLikeComplex_co, + stop: _ArrayLikeComplex_co, + num: SupportsIndex = 50, + endpoint: bool = True, + dtype: DTypeLike | None = None, + axis: SupportsIndex = 0, +) -> NDArray[Incomplete]: ... + +def add_newdoc( + place: str, + obj: str, + doc: str | tuple[str, str] | list[tuple[str, str]], + warn_on_python: bool = True, +) -> None: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/getlimits.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/getlimits.py new file mode 100644 index 0000000000000000000000000000000000000000..3c03d81165fb175ad1e8603e399eea62a8bf5114 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/getlimits.py @@ -0,0 +1,462 @@ +"""Machine limits for Float32 and Float64 and (long double) if available... + +""" +__all__ = ['finfo', 'iinfo'] + +import math +import types +import warnings +from functools import cached_property + +from numpy._utils import set_module + +from . import numeric, numerictypes as ntypes +from ._multiarray_umath import _populate_finfo_constants + + +def _fr0(a): + """fix rank-0 --> rank-1""" + if a.ndim == 0: + a = a.copy() + a.shape = (1,) + return a + + +def _fr1(a): + """fix rank > 0 --> rank-0""" + if a.size == 1: + a = a.copy() + a.shape = () + return a + + +_convert_to_float = { + ntypes.csingle: ntypes.single, + ntypes.complex128: ntypes.float64, + ntypes.clongdouble: ntypes.longdouble + } + +# Parameters for creating MachAr / MachAr-like objects +_title_fmt = 'numpy {} precision floating point number' +_MACHAR_PARAMS = { + ntypes.double: { + 'itype': ntypes.int64, + 'fmt': '%24.16e', + 'title': _title_fmt.format('double')}, + ntypes.single: { + 'itype': ntypes.int32, + 'fmt': '%15.7e', + 'title': _title_fmt.format('single')}, + ntypes.longdouble: { + 'itype': ntypes.longlong, + 'fmt': '%s', + 'title': _title_fmt.format('long double')}, + ntypes.half: { + 'itype': ntypes.int16, + 'fmt': '%12.5e', + 'title': _title_fmt.format('half')}} + + +@set_module('numpy') +class finfo: + """ + finfo(dtype) + + Machine limits for floating point types. + + Attributes + ---------- + bits : int + The number of bits occupied by the type. + dtype : dtype + Returns the dtype for which `finfo` returns information. For complex + input, the returned dtype is the associated ``float*`` dtype for its + real and complex components. + eps : float + The difference between 1.0 and the next smallest representable float + larger than 1.0. For example, for 64-bit binary floats in the IEEE-754 + standard, ``eps = 2**-52``, approximately 2.22e-16. + epsneg : float + The difference between 1.0 and the next smallest representable float + less than 1.0. For example, for 64-bit binary floats in the IEEE-754 + standard, ``epsneg = 2**-53``, approximately 1.11e-16. + iexp : int + The number of bits in the exponent portion of the floating point + representation. + machep : int + The exponent that yields `eps`. + max : floating point number of the appropriate type + The largest representable number. + maxexp : int + The smallest positive power of the base (2) that causes overflow. + Corresponds to the C standard MAX_EXP. + min : floating point number of the appropriate type + The smallest representable number, typically ``-max``. + minexp : int + The most negative power of the base (2) consistent with there + being no leading 0's in the mantissa. Corresponds to the C + standard MIN_EXP - 1. + negep : int + The exponent that yields `epsneg`. + nexp : int + The number of bits in the exponent including its sign and bias. + nmant : int + The number of explicit bits in the mantissa (excluding the implicit + leading bit for normalized numbers). + precision : int + The approximate number of decimal digits to which this kind of + float is precise. + resolution : floating point number of the appropriate type + The approximate decimal resolution of this type, i.e., + ``10**-precision``. + tiny : float + An alias for `smallest_normal`, kept for backwards compatibility. + smallest_normal : float + The smallest positive floating point number with 1 as leading bit in + the mantissa following IEEE-754 (see Notes). + smallest_subnormal : float + The smallest positive floating point number with 0 as leading bit in + the mantissa following IEEE-754. + + Parameters + ---------- + dtype : float, dtype, or instance + Kind of floating point or complex floating point + data-type about which to get information. + + See Also + -------- + iinfo : The equivalent for integer data types. + spacing : The distance between a value and the nearest adjacent number + nextafter : The next floating point value after x1 towards x2 + + Notes + ----- + For developers of NumPy: do not instantiate this at the module level. + The initial calculation of these parameters is expensive and negatively + impacts import times. These objects are cached, so calling ``finfo()`` + repeatedly inside your functions is not a problem. + + Note that ``smallest_normal`` is not actually the smallest positive + representable value in a NumPy floating point type. As in the IEEE-754 + standard [1]_, NumPy floating point types make use of subnormal numbers to + fill the gap between 0 and ``smallest_normal``. However, subnormal numbers + may have significantly reduced precision [2]_. + + For ``longdouble``, the representation varies across platforms. On most + platforms it is IEEE 754 binary128 (quad precision) or binary64-extended + (80-bit extended precision). On PowerPC systems, it may use the IBM + double-double format (a pair of float64 values), which has special + characteristics for precision and range. + + This function can also be used for complex data types as well. If used, + the output will be the same as the corresponding real float type + (e.g. numpy.finfo(numpy.csingle) is the same as numpy.finfo(numpy.single)). + However, the output is true for the real and imaginary components. + + References + ---------- + .. [1] IEEE Standard for Floating-Point Arithmetic, IEEE Std 754-2008, + pp.1-70, 2008, https://doi.org/10.1109/IEEESTD.2008.4610935 + .. [2] Wikipedia, "Denormal Numbers", + https://en.wikipedia.org/wiki/Denormal_number + + Examples + -------- + >>> import numpy as np + >>> np.finfo(np.float64).dtype + dtype('float64') + >>> np.finfo(np.complex64).dtype + dtype('float32') + + """ + + _finfo_cache = {} + + __class_getitem__ = classmethod(types.GenericAlias) + + def __new__(cls, dtype): + try: + obj = cls._finfo_cache.get(dtype) # most common path + if obj is not None: + return obj + except TypeError: + pass + + if dtype is None: + # Deprecated in NumPy 1.25, 2023-01-16 + warnings.warn( + "finfo() dtype cannot be None. This behavior will " + "raise an error in the future. (Deprecated in NumPy 1.25)", + DeprecationWarning, + stacklevel=2 + ) + + try: + dtype = numeric.dtype(dtype) + except TypeError: + # In case a float instance was given + dtype = numeric.dtype(type(dtype)) + + obj = cls._finfo_cache.get(dtype) + if obj is not None: + return obj + dtypes = [dtype] + newdtype = ntypes.obj2sctype(dtype) + if newdtype is not dtype: + dtypes.append(newdtype) + dtype = newdtype + if not issubclass(dtype, numeric.inexact): + raise ValueError(f"data type {dtype!r} not inexact") + obj = cls._finfo_cache.get(dtype) + if obj is not None: + return obj + if not issubclass(dtype, numeric.floating): + newdtype = _convert_to_float[dtype] + if newdtype is not dtype: + # dtype changed, for example from complex128 to float64 + dtypes.append(newdtype) + dtype = newdtype + + obj = cls._finfo_cache.get(dtype, None) + if obj is not None: + # the original dtype was not in the cache, but the new + # dtype is in the cache. we add the original dtypes to + # the cache and return the result + for dt in dtypes: + cls._finfo_cache[dt] = obj + return obj + obj = object.__new__(cls)._init(dtype) + for dt in dtypes: + cls._finfo_cache[dt] = obj + return obj + + def _init(self, dtype): + self.dtype = numeric.dtype(dtype) + self.bits = self.dtype.itemsize * 8 + self._fmt = None + self._repr = None + _populate_finfo_constants(self, self.dtype) + return self + + @cached_property + def epsneg(self): + # Assume typical floating point logic. Could also use nextafter. + return self.eps / self._radix + + @cached_property + def resolution(self): + return self.dtype.type(10)**-self.precision + + @cached_property + def machep(self): + return int(math.log2(self.eps)) + + @cached_property + def negep(self): + return int(math.log2(self.epsneg)) + + @cached_property + def nexp(self): + # considering all ones (inf/nan) and all zeros (subnormal/zero) + return math.ceil(math.log2(self.maxexp - self.minexp + 2)) + + @cached_property + def iexp(self): + # Calculate exponent bits from it's range: + return math.ceil(math.log2(self.maxexp - self.minexp)) + + def __str__(self): + if (fmt := getattr(self, "_fmt", None)) is not None: + return fmt + + def get_str(name, pad=None): + if (val := getattr(self, name, None)) is None: + return "" + if pad is not None: + s = str(val).ljust(pad) + return str(val) + + precision = get_str("precision", 3) + machep = get_str("machep", 6) + negep = get_str("negep", 6) + minexp = get_str("minexp", 6) + maxexp = get_str("maxexp", 6) + resolution = get_str("resolution") + eps = get_str("eps") + epsneg = get_str("epsneg") + tiny = get_str("tiny") + smallest_normal = get_str("smallest_normal") + smallest_subnormal = get_str("smallest_subnormal") + nexp = get_str("nexp", 6) + max_ = get_str("max") + if hasattr(self, "min") and hasattr(self, "max") and -self.min == self.max: + min_ = "-max" + else: + min_ = get_str("min") + + fmt = ( + f'Machine parameters for {self.dtype}\n' + f'---------------------------------------------------------------\n' + f'precision = {precision} resolution = {resolution}\n' + f'machep = {machep} eps = {eps}\n' + f'negep = {negep} epsneg = {epsneg}\n' + f'minexp = {minexp} tiny = {tiny}\n' + f'maxexp = {maxexp} max = {max_}\n' + f'nexp = {nexp} min = {min_}\n' + f'smallest_normal = {smallest_normal} ' + f'smallest_subnormal = {smallest_subnormal}\n' + f'---------------------------------------------------------------\n' + ) + self._fmt = fmt + return fmt + + def __repr__(self): + if (repr_str := getattr(self, "_repr", None)) is not None: + return repr_str + + c = self.__class__.__name__ + + # Use precision+1 digits in exponential notation + fmt_str = _MACHAR_PARAMS.get(self.dtype.type, {}).get('fmt', '%s') + if fmt_str != '%s' and hasattr(self, 'max') and hasattr(self, 'min'): + max_str = (fmt_str % self.max).strip() + min_str = (fmt_str % self.min).strip() + else: + max_str = str(self.max) + min_str = str(self.min) + + resolution_str = str(self.resolution) + + repr_str = (f"{c}(resolution={resolution_str}, min={min_str}," + f" max={max_str}, dtype={self.dtype})") + self._repr = repr_str + return repr_str + + @cached_property + def tiny(self): + """Return the value for tiny, alias of smallest_normal. + + Returns + ------- + tiny : float + Value for the smallest normal, alias of smallest_normal. + + Warns + ----- + UserWarning + If the calculated value for the smallest normal is requested for + double-double. + """ + return self.smallest_normal + + +@set_module('numpy') +class iinfo: + """ + iinfo(type) + + Machine limits for integer types. + + Attributes + ---------- + bits : int + The number of bits occupied by the type. + dtype : dtype + Returns the dtype for which `iinfo` returns information. + min : int + The smallest integer expressible by the type. + max : int + The largest integer expressible by the type. + + Parameters + ---------- + int_type : integer type, dtype, or instance + The kind of integer data type to get information about. + + See Also + -------- + finfo : The equivalent for floating point data types. + + Examples + -------- + With types: + + >>> import numpy as np + >>> ii16 = np.iinfo(np.int16) + >>> ii16.min + -32768 + >>> ii16.max + 32767 + >>> ii32 = np.iinfo(np.int32) + >>> ii32.min + -2147483648 + >>> ii32.max + 2147483647 + + With instances: + + >>> ii32 = np.iinfo(np.int32(10)) + >>> ii32.min + -2147483648 + >>> ii32.max + 2147483647 + + """ + + _min_vals = {} + _max_vals = {} + + __class_getitem__ = classmethod(types.GenericAlias) + + def __init__(self, int_type): + try: + self.dtype = numeric.dtype(int_type) + except TypeError: + self.dtype = numeric.dtype(type(int_type)) + self.kind = self.dtype.kind + self.bits = self.dtype.itemsize * 8 + self.key = "%s%d" % (self.kind, self.bits) + if self.kind not in 'iu': + raise ValueError(f"Invalid integer data type {self.kind!r}.") + + @property + def min(self): + """Minimum value of given dtype.""" + if self.kind == 'u': + return 0 + else: + try: + val = iinfo._min_vals[self.key] + except KeyError: + val = int(-(1 << (self.bits - 1))) + iinfo._min_vals[self.key] = val + return val + + @property + def max(self): + """Maximum value of given dtype.""" + try: + val = iinfo._max_vals[self.key] + except KeyError: + if self.kind == 'u': + val = int((1 << self.bits) - 1) + else: + val = int((1 << (self.bits - 1)) - 1) + iinfo._max_vals[self.key] = val + return val + + def __str__(self): + """String representation.""" + fmt = ( + 'Machine parameters for %(dtype)s\n' + '---------------------------------------------------------------\n' + 'min = %(min)s\n' + 'max = %(max)s\n' + '---------------------------------------------------------------\n' + ) + return fmt % {'dtype': self.dtype, 'min': self.min, 'max': self.max} + + def __repr__(self): + return "%s(min=%s, max=%s, dtype=%s)" % (self.__class__.__name__, + self.min, self.max, self.dtype) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/getlimits.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/getlimits.pyi new file mode 100644 index 0000000000000000000000000000000000000000..a22149ceb5c672145e2f3c2bd7ad3c20f7503185 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/getlimits.pyi @@ -0,0 +1,124 @@ +from functools import cached_property +from types import GenericAlias +from typing import Final, Generic, Self, overload +from typing_extensions import TypeVar + +import numpy as np +from numpy._typing import ( + _CLongDoubleCodes, + _Complex64Codes, + _Complex128Codes, + _DTypeLike, + _Float16Codes, + _Float32Codes, + _Float64Codes, + _Int8Codes, + _Int16Codes, + _Int32Codes, + _Int64Codes, + _IntPCodes, + _LongDoubleCodes, + _UInt8Codes, + _UInt16Codes, + _UInt32Codes, + _UInt64Codes, +) + +__all__ = ["finfo", "iinfo"] + +### + +_IntegerT_co = TypeVar("_IntegerT_co", bound=np.integer, default=np.integer, covariant=True) +_FloatingT_co = TypeVar("_FloatingT_co", bound=np.floating, default=np.floating, covariant=True) + +### + +class iinfo(Generic[_IntegerT_co]): + dtype: np.dtype[_IntegerT_co] + bits: Final[int] + kind: Final[str] + key: Final[str] + + @property + def min(self, /) -> int: ... + @property + def max(self, /) -> int: ... + + # + @overload + def __init__(self, /, int_type: _IntegerT_co | _DTypeLike[_IntegerT_co]) -> None: ... + @overload + def __init__(self: iinfo[np.int_], /, int_type: _IntPCodes | type[int] | int) -> None: ... + @overload + def __init__(self: iinfo[np.int8], /, int_type: _Int8Codes) -> None: ... + @overload + def __init__(self: iinfo[np.uint8], /, int_type: _UInt8Codes) -> None: ... + @overload + def __init__(self: iinfo[np.int16], /, int_type: _Int16Codes) -> None: ... + @overload + def __init__(self: iinfo[np.uint16], /, int_type: _UInt16Codes) -> None: ... + @overload + def __init__(self: iinfo[np.int32], /, int_type: _Int32Codes) -> None: ... + @overload + def __init__(self: iinfo[np.uint32], /, int_type: _UInt32Codes) -> None: ... + @overload + def __init__(self: iinfo[np.int64], /, int_type: _Int64Codes) -> None: ... + @overload + def __init__(self: iinfo[np.uint64], /, int_type: _UInt64Codes) -> None: ... + @overload + def __init__(self, /, int_type: str) -> None: ... + + # + @classmethod + def __class_getitem__(cls, item: object, /) -> GenericAlias: ... + +class finfo(Generic[_FloatingT_co]): + dtype: np.dtype[_FloatingT_co] # readonly + eps: _FloatingT_co # readonly + _radix: _FloatingT_co # readonly + smallest_normal: _FloatingT_co # readonly + smallest_subnormal: _FloatingT_co # readonly + max: _FloatingT_co # readonly + min: _FloatingT_co # readonly + + _fmt: str | None # `__str__` cache + _repr: str | None # `__repr__` cache + + bits: Final[int] + maxexp: Final[int] + minexp: Final[int] + nmant: Final[int] + precision: Final[int] + + @classmethod + def __class_getitem__(cls, item: object, /) -> GenericAlias: ... + + # + @overload + def __new__(cls, dtype: _FloatingT_co | _DTypeLike[_FloatingT_co]) -> Self: ... + @overload + def __new__(cls, dtype: _Float16Codes) -> finfo[np.float16]: ... + @overload + def __new__(cls, dtype: _Float32Codes | _Complex64Codes | _DTypeLike[np.complex64]) -> finfo[np.float32]: ... + @overload + def __new__(cls, dtype: _Float64Codes | _Complex128Codes | type[complex] | complex) -> finfo[np.float64]: ... + @overload + def __new__(cls, dtype: _LongDoubleCodes | _CLongDoubleCodes | _DTypeLike[np.clongdouble]) -> finfo[np.longdouble]: ... + @overload + def 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0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/._utils.h differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/__multiarray_api.c b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/__multiarray_api.c new file mode 100644 index 0000000000000000000000000000000000000000..8398c627e082a8cd28463797b12cf2d56a4a8d6e --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/__multiarray_api.c @@ -0,0 +1,376 @@ + +/* These pointers will be stored in the C-object for use in other + extension modules +*/ + +void *PyArray_API[] = { + (void *) PyArray_GetNDArrayCVersion, + NULL, + (void *) &PyArray_Type, + (void *) &PyArrayDescr_Type, + NULL, + (void *) &PyArrayIter_Type, + (void *) &PyArrayMultiIter_Type, + (int *) &NPY_NUMUSERTYPES, + (void *) &PyBoolArrType_Type, + (void *) &_PyArrayScalar_BoolValues, + (void *) &PyGenericArrType_Type, + (void *) &PyNumberArrType_Type, + (void *) &PyIntegerArrType_Type, + (void *) &PySignedIntegerArrType_Type, + (void *) &PyUnsignedIntegerArrType_Type, + (void *) &PyInexactArrType_Type, + (void *) &PyFloatingArrType_Type, + (void *) &PyComplexFloatingArrType_Type, + (void *) &PyFlexibleArrType_Type, + (void *) &PyCharacterArrType_Type, + (void *) &PyByteArrType_Type, + (void *) &PyShortArrType_Type, + (void *) &PyIntArrType_Type, + (void *) &PyLongArrType_Type, + (void *) &PyLongLongArrType_Type, + (void *) &PyUByteArrType_Type, + (void *) &PyUShortArrType_Type, + (void *) &PyUIntArrType_Type, + (void *) &PyULongArrType_Type, + (void *) &PyULongLongArrType_Type, + (void *) &PyFloatArrType_Type, + (void *) &PyDoubleArrType_Type, + (void *) &PyLongDoubleArrType_Type, + (void *) &PyCFloatArrType_Type, + (void *) &PyCDoubleArrType_Type, + (void *) &PyCLongDoubleArrType_Type, + (void *) &PyObjectArrType_Type, + (void *) &PyStringArrType_Type, + (void *) &PyUnicodeArrType_Type, + (void *) &PyVoidArrType_Type, + NULL, + NULL, + (void *) PyArray_INCREF, + (void *) PyArray_XDECREF, + (void *) PyArray_SetStringFunction, + (void *) PyArray_DescrFromType, + (void *) PyArray_TypeObjectFromType, + (void *) PyArray_Zero, + (void *) PyArray_One, + (void *) PyArray_CastToType, + (void *) PyArray_CopyInto, + (void *) PyArray_CopyAnyInto, + (void *) PyArray_CanCastSafely, + (void *) PyArray_CanCastTo, + (void *) PyArray_ObjectType, + (void *) PyArray_DescrFromObject, + (void *) PyArray_ConvertToCommonType, + (void *) PyArray_DescrFromScalar, + (void *) PyArray_DescrFromTypeObject, + (void *) PyArray_Size, + (void *) PyArray_Scalar, + (void *) PyArray_FromScalar, + (void *) PyArray_ScalarAsCtype, + (void *) PyArray_CastScalarToCtype, + (void *) PyArray_CastScalarDirect, + (void *) PyArray_Pack, + NULL, + NULL, + NULL, + (void *) PyArray_FromAny, + (void *) PyArray_EnsureArray, + (void *) PyArray_EnsureAnyArray, + (void *) PyArray_FromFile, + (void *) PyArray_FromString, + (void *) PyArray_FromBuffer, + (void *) PyArray_FromIter, + (void *) PyArray_Return, + (void *) PyArray_GetField, + (void *) PyArray_SetField, + (void *) PyArray_Byteswap, + (void *) PyArray_Resize, + NULL, + NULL, + NULL, + (void *) PyArray_CopyObject, + (void *) PyArray_NewCopy, + (void *) PyArray_ToList, + (void *) PyArray_ToString, + (void *) PyArray_ToFile, + (void *) PyArray_Dump, + (void *) PyArray_Dumps, + (void *) PyArray_ValidType, + (void *) PyArray_UpdateFlags, + (void *) PyArray_New, + (void *) PyArray_NewFromDescr, + (void *) PyArray_DescrNew, + (void *) PyArray_DescrNewFromType, + (void *) PyArray_GetPriority, + (void *) PyArray_IterNew, + (void *) PyArray_MultiIterNew, + (void *) PyArray_PyIntAsInt, + (void *) PyArray_PyIntAsIntp, + (void *) PyArray_Broadcast, + NULL, + (void *) PyArray_FillWithScalar, + (void *) PyArray_CheckStrides, + (void *) PyArray_DescrNewByteorder, + (void *) PyArray_IterAllButAxis, + (void *) PyArray_CheckFromAny, + (void *) PyArray_FromArray, + (void *) PyArray_FromInterface, + (void *) PyArray_FromStructInterface, + (void *) PyArray_FromArrayAttr, + (void *) PyArray_ScalarKind, + (void *) PyArray_CanCoerceScalar, + NULL, + (void *) PyArray_CanCastScalar, + NULL, + (void *) PyArray_RemoveSmallest, + (void *) PyArray_ElementStrides, + (void *) PyArray_Item_INCREF, + (void *) PyArray_Item_XDECREF, + NULL, + (void *) PyArray_Transpose, + (void *) PyArray_TakeFrom, + (void *) PyArray_PutTo, + (void *) PyArray_PutMask, + (void *) PyArray_Repeat, + (void *) PyArray_Choose, + (void *) PyArray_Sort, + (void *) PyArray_ArgSort, + (void *) PyArray_SearchSorted, + (void *) PyArray_ArgMax, + (void *) PyArray_ArgMin, + (void *) PyArray_Reshape, + (void *) PyArray_Newshape, + (void *) PyArray_Squeeze, + (void *) PyArray_View, + (void *) PyArray_SwapAxes, + (void *) PyArray_Max, + (void *) PyArray_Min, + (void *) PyArray_Ptp, + (void *) PyArray_Mean, + (void *) PyArray_Trace, + (void *) PyArray_Diagonal, + (void *) PyArray_Clip, + (void *) PyArray_Conjugate, + (void *) PyArray_Nonzero, + (void *) PyArray_Std, + (void *) PyArray_Sum, + (void *) PyArray_CumSum, + (void *) PyArray_Prod, + (void *) PyArray_CumProd, + (void *) PyArray_All, + (void *) PyArray_Any, + (void *) PyArray_Compress, + (void *) PyArray_Flatten, + (void *) PyArray_Ravel, + (void *) PyArray_MultiplyList, + (void *) PyArray_MultiplyIntList, + (void *) PyArray_GetPtr, + (void *) PyArray_CompareLists, + (void *) PyArray_AsCArray, + NULL, + NULL, + (void *) PyArray_Free, + (void *) PyArray_Converter, + (void *) PyArray_IntpFromSequence, + (void *) PyArray_Concatenate, + (void *) PyArray_InnerProduct, + (void *) PyArray_MatrixProduct, + NULL, + (void *) PyArray_Correlate, + NULL, + (void *) PyArray_DescrConverter, + (void *) PyArray_DescrConverter2, + (void *) PyArray_IntpConverter, + (void *) PyArray_BufferConverter, + (void *) PyArray_AxisConverter, + (void *) PyArray_BoolConverter, + (void *) PyArray_ByteorderConverter, + (void *) PyArray_OrderConverter, + (void *) PyArray_EquivTypes, + (void *) PyArray_Zeros, + (void *) PyArray_Empty, + (void *) PyArray_Where, + (void *) PyArray_Arange, + (void *) PyArray_ArangeObj, + (void *) PyArray_SortkindConverter, + (void *) PyArray_LexSort, + (void *) PyArray_Round, + (void *) PyArray_EquivTypenums, + (void *) PyArray_RegisterDataType, + (void *) PyArray_RegisterCastFunc, + (void *) PyArray_RegisterCanCast, + (void *) PyArray_InitArrFuncs, + (void *) PyArray_IntTupleFromIntp, + NULL, + (void *) PyArray_ClipmodeConverter, + (void *) PyArray_OutputConverter, + (void *) PyArray_BroadcastToShape, + NULL, + NULL, + (void *) PyArray_DescrAlignConverter, + (void *) PyArray_DescrAlignConverter2, + (void *) PyArray_SearchsideConverter, + (void *) PyArray_CheckAxis, + (void *) PyArray_OverflowMultiplyList, + NULL, + (void *) PyArray_MultiIterFromObjects, + (void *) PyArray_GetEndianness, + (void *) PyArray_GetNDArrayCFeatureVersion, + (void *) PyArray_Correlate2, + (void *) PyArray_NeighborhoodIterNew, + (void *) &PyTimeIntegerArrType_Type, + (void *) &PyDatetimeArrType_Type, + (void *) &PyTimedeltaArrType_Type, + (void *) &PyHalfArrType_Type, + (void *) &NpyIter_Type, + NULL, + NULL, + NULL, + NULL, + (void *) NpyIter_GetTransferFlags, + (void *) NpyIter_New, + (void *) NpyIter_MultiNew, + (void *) NpyIter_AdvancedNew, + (void *) NpyIter_Copy, + (void *) NpyIter_Deallocate, + (void *) NpyIter_HasDelayedBufAlloc, + (void *) NpyIter_HasExternalLoop, + (void *) NpyIter_EnableExternalLoop, + (void *) NpyIter_GetInnerStrideArray, + (void *) NpyIter_GetInnerLoopSizePtr, + (void *) NpyIter_Reset, + (void *) NpyIter_ResetBasePointers, + (void *) NpyIter_ResetToIterIndexRange, + (void *) NpyIter_GetNDim, + (void *) NpyIter_GetNOp, + (void *) NpyIter_GetIterNext, + (void *) NpyIter_GetIterSize, + (void *) NpyIter_GetIterIndexRange, + (void *) NpyIter_GetIterIndex, + (void *) NpyIter_GotoIterIndex, + (void *) NpyIter_HasMultiIndex, + (void *) NpyIter_GetShape, + (void *) NpyIter_GetGetMultiIndex, + (void *) NpyIter_GotoMultiIndex, + (void *) NpyIter_RemoveMultiIndex, + (void *) NpyIter_HasIndex, + (void *) NpyIter_IsBuffered, + (void *) NpyIter_IsGrowInner, + (void *) NpyIter_GetBufferSize, + (void *) NpyIter_GetIndexPtr, + (void *) NpyIter_GotoIndex, + (void *) NpyIter_GetDataPtrArray, + (void *) NpyIter_GetDescrArray, + (void *) NpyIter_GetOperandArray, + (void *) NpyIter_GetIterView, + (void *) NpyIter_GetReadFlags, + (void *) NpyIter_GetWriteFlags, + (void *) NpyIter_DebugPrint, + (void *) NpyIter_IterationNeedsAPI, + (void *) NpyIter_GetInnerFixedStrideArray, + (void *) NpyIter_RemoveAxis, + (void *) NpyIter_GetAxisStrideArray, + (void *) NpyIter_RequiresBuffering, + (void *) NpyIter_GetInitialDataPtrArray, + (void *) NpyIter_CreateCompatibleStrides, + (void *) PyArray_CastingConverter, + (void *) PyArray_CountNonzero, + (void *) PyArray_PromoteTypes, + (void *) PyArray_MinScalarType, + (void *) PyArray_ResultType, + (void *) PyArray_CanCastArrayTo, + (void *) PyArray_CanCastTypeTo, + (void *) PyArray_EinsteinSum, + (void *) PyArray_NewLikeArray, + NULL, + (void *) PyArray_ConvertClipmodeSequence, + (void *) PyArray_MatrixProduct2, + (void *) NpyIter_IsFirstVisit, + (void *) PyArray_SetBaseObject, + (void *) PyArray_CreateSortedStridePerm, + (void *) PyArray_RemoveAxesInPlace, + (void *) PyArray_DebugPrint, + (void *) PyArray_FailUnlessWriteable, + (void *) PyArray_SetUpdateIfCopyBase, + (void *) PyDataMem_NEW, + (void *) PyDataMem_FREE, + (void *) PyDataMem_RENEW, + NULL, + (NPY_CASTING *) &NPY_DEFAULT_ASSIGN_CASTING, + NULL, + NULL, + NULL, + (void *) PyArray_Partition, + (void *) PyArray_ArgPartition, + (void *) PyArray_SelectkindConverter, + (void *) PyDataMem_NEW_ZEROED, + (void *) PyArray_CheckAnyScalarExact, + NULL, + (void *) PyArray_ResolveWritebackIfCopy, + (void *) PyArray_SetWritebackIfCopyBase, + (void *) PyDataMem_SetHandler, + (void *) PyDataMem_GetHandler, + (PyObject* *) &PyDataMem_DefaultHandler, + (void *) NpyDatetime_ConvertDatetime64ToDatetimeStruct, + (void *) NpyDatetime_ConvertDatetimeStructToDatetime64, + (void *) NpyDatetime_ConvertPyDateTimeToDatetimeStruct, + (void *) NpyDatetime_GetDatetimeISO8601StrLen, + (void *) NpyDatetime_MakeISO8601Datetime, + (void *) NpyDatetime_ParseISO8601Datetime, + (void *) NpyString_load, + (void *) NpyString_pack, + (void *) NpyString_pack_null, + (void *) NpyString_acquire_allocator, + (void *) NpyString_acquire_allocators, + (void *) NpyString_release_allocator, + (void *) NpyString_release_allocators, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + NULL, + (void *) PyArray_GetDefaultDescr, + (void *) PyArrayInitDTypeMeta_FromSpec, + (void *) PyArray_CommonDType, + (void *) PyArray_PromoteDTypeSequence, + (void *) _PyDataType_GetArrFuncs, + NULL, + NULL, + NULL +}; diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/__multiarray_api.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/__multiarray_api.h new file mode 100644 index 0000000000000000000000000000000000000000..763dc85fb5623edd4e0a43ff8395a508f9255cda --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/__multiarray_api.h @@ -0,0 +1,1628 @@ + +#if defined(_MULTIARRAYMODULE) || defined(WITH_CPYCHECKER_STEALS_REFERENCE_TO_ARG_ATTRIBUTE) + +typedef struct { + PyObject_HEAD + npy_bool obval; +} PyBoolScalarObject; + +extern NPY_NO_EXPORT PyTypeObject PyArrayNeighborhoodIter_Type; +extern NPY_NO_EXPORT PyBoolScalarObject _PyArrayScalar_BoolValues[2]; + +NPY_NO_EXPORT unsigned int PyArray_GetNDArrayCVersion \ + (void); +extern NPY_NO_EXPORT PyTypeObject PyArray_Type; + +extern NPY_NO_EXPORT PyArray_DTypeMeta PyArrayDescr_TypeFull; +#define PyArrayDescr_Type (*(PyTypeObject *)(&PyArrayDescr_TypeFull)) + +extern NPY_NO_EXPORT PyTypeObject PyArrayIter_Type; + +extern NPY_NO_EXPORT PyTypeObject PyArrayMultiIter_Type; + +extern NPY_NO_EXPORT int NPY_NUMUSERTYPES; + +extern NPY_NO_EXPORT PyTypeObject PyBoolArrType_Type; + +extern NPY_NO_EXPORT PyBoolScalarObject _PyArrayScalar_BoolValues[2]; + +extern NPY_NO_EXPORT PyTypeObject PyGenericArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyNumberArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyIntegerArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PySignedIntegerArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyUnsignedIntegerArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyInexactArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyFloatingArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyComplexFloatingArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyFlexibleArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyCharacterArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyByteArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyShortArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyIntArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyLongArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyLongLongArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyUByteArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyUShortArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyUIntArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyULongArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyULongLongArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyFloatArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyDoubleArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyLongDoubleArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyCFloatArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyCDoubleArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyCLongDoubleArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyObjectArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyStringArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyUnicodeArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyVoidArrType_Type; + +NPY_NO_EXPORT int PyArray_INCREF \ + (PyArrayObject *); +NPY_NO_EXPORT int PyArray_XDECREF \ + (PyArrayObject *); +NPY_NO_EXPORT void PyArray_SetStringFunction \ + (PyObject *, int); +NPY_NO_EXPORT PyArray_Descr * PyArray_DescrFromType \ + (int); +NPY_NO_EXPORT PyObject * PyArray_TypeObjectFromType \ + (int); +NPY_NO_EXPORT char * PyArray_Zero \ + (PyArrayObject *); +NPY_NO_EXPORT char * PyArray_One \ + (PyArrayObject *); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_CastToType \ + (PyArrayObject *, PyArray_Descr *, int); +NPY_NO_EXPORT int PyArray_CopyInto \ + (PyArrayObject *, PyArrayObject *); +NPY_NO_EXPORT int PyArray_CopyAnyInto \ + (PyArrayObject *, PyArrayObject *); +NPY_NO_EXPORT int PyArray_CanCastSafely \ + (int, int); +NPY_NO_EXPORT npy_bool PyArray_CanCastTo \ + (PyArray_Descr *, PyArray_Descr *); +NPY_NO_EXPORT int PyArray_ObjectType \ + (PyObject *, int); +NPY_NO_EXPORT PyArray_Descr * PyArray_DescrFromObject \ + (PyObject *, PyArray_Descr *); +NPY_NO_EXPORT PyArrayObject ** PyArray_ConvertToCommonType \ + (PyObject *, int *); +NPY_NO_EXPORT PyArray_Descr * PyArray_DescrFromScalar \ + (PyObject *); +NPY_NO_EXPORT PyArray_Descr * PyArray_DescrFromTypeObject \ + (PyObject *); +NPY_NO_EXPORT npy_intp PyArray_Size \ + (PyObject *); +NPY_NO_EXPORT PyObject * PyArray_Scalar \ + (void *, PyArray_Descr *, PyObject *); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_FromScalar \ + (PyObject *, PyArray_Descr *); +NPY_NO_EXPORT void PyArray_ScalarAsCtype \ + (PyObject *, void *); +NPY_NO_EXPORT int PyArray_CastScalarToCtype \ + (PyObject *, void *, PyArray_Descr *); +NPY_NO_EXPORT int PyArray_CastScalarDirect \ + (PyObject *, PyArray_Descr *, void *, int); +NPY_NO_EXPORT int PyArray_Pack \ + (PyArray_Descr *, void *, PyObject *); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_FromAny \ + (PyObject *, PyArray_Descr *, int, int, int, PyObject *); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(1) PyObject * PyArray_EnsureArray \ + (PyObject *); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(1) PyObject * PyArray_EnsureAnyArray \ + (PyObject *); +NPY_NO_EXPORT PyObject * PyArray_FromFile \ + (FILE *, PyArray_Descr *, npy_intp, char *); +NPY_NO_EXPORT PyObject * PyArray_FromString \ + (char *, npy_intp, PyArray_Descr *, npy_intp, char *); +NPY_NO_EXPORT PyObject * PyArray_FromBuffer \ + (PyObject *, PyArray_Descr *, npy_intp, npy_intp); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_FromIter \ + (PyObject *, PyArray_Descr *, npy_intp); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(1) PyObject * PyArray_Return \ + (PyArrayObject *); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_GetField \ + (PyArrayObject *, PyArray_Descr *, int); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) int PyArray_SetField \ + (PyArrayObject *, PyArray_Descr *, int, PyObject *); +NPY_NO_EXPORT PyObject * PyArray_Byteswap \ + (PyArrayObject *, npy_bool); +NPY_NO_EXPORT PyObject * PyArray_Resize \ + (PyArrayObject *, PyArray_Dims *, int, NPY_ORDER NPY_UNUSED(order)); +NPY_NO_EXPORT int PyArray_CopyObject \ + (PyArrayObject *, PyObject *); +NPY_NO_EXPORT PyObject * PyArray_NewCopy \ + (PyArrayObject *, NPY_ORDER); +NPY_NO_EXPORT PyObject * PyArray_ToList \ + (PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_ToString \ + (PyArrayObject *, NPY_ORDER); +NPY_NO_EXPORT int PyArray_ToFile \ + (PyArrayObject *, FILE *, char *, char *); +NPY_NO_EXPORT int PyArray_Dump \ + (PyObject *, PyObject *, int); +NPY_NO_EXPORT PyObject * PyArray_Dumps \ + (PyObject *, int); +NPY_NO_EXPORT int PyArray_ValidType \ + (int); +NPY_NO_EXPORT void PyArray_UpdateFlags \ + (PyArrayObject *, int); +NPY_NO_EXPORT PyObject * PyArray_New \ + (PyTypeObject *, int, npy_intp const *, int, npy_intp const *, void *, int, int, PyObject *); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_NewFromDescr \ + (PyTypeObject *, PyArray_Descr *, int, npy_intp const *, npy_intp const *, void *, int, PyObject *); +NPY_NO_EXPORT PyArray_Descr * PyArray_DescrNew \ + (PyArray_Descr *); +NPY_NO_EXPORT PyArray_Descr * PyArray_DescrNewFromType \ + (int); +NPY_NO_EXPORT double PyArray_GetPriority \ + (PyObject *, double); +NPY_NO_EXPORT PyObject * PyArray_IterNew \ + (PyObject *); +NPY_NO_EXPORT PyObject* PyArray_MultiIterNew \ + (int, ...); +NPY_NO_EXPORT int PyArray_PyIntAsInt \ + (PyObject *); +NPY_NO_EXPORT npy_intp PyArray_PyIntAsIntp \ + (PyObject *); +NPY_NO_EXPORT int PyArray_Broadcast \ + (PyArrayMultiIterObject *); +NPY_NO_EXPORT int PyArray_FillWithScalar \ + (PyArrayObject *, PyObject *); +NPY_NO_EXPORT npy_bool PyArray_CheckStrides \ + (int, int, npy_intp, npy_intp, npy_intp const *, npy_intp const *); +NPY_NO_EXPORT PyArray_Descr * PyArray_DescrNewByteorder \ + (PyArray_Descr *, char); +NPY_NO_EXPORT PyObject * PyArray_IterAllButAxis \ + (PyObject *, int *); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_CheckFromAny \ + (PyObject *, PyArray_Descr *, int, int, int, PyObject *); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_FromArray \ + (PyArrayObject *, PyArray_Descr *, int); +NPY_NO_EXPORT PyObject * PyArray_FromInterface \ + (PyObject *); +NPY_NO_EXPORT PyObject * PyArray_FromStructInterface \ + (PyObject *); +NPY_NO_EXPORT PyObject * PyArray_FromArrayAttr \ + (PyObject *, PyArray_Descr *, PyObject *); +NPY_NO_EXPORT NPY_SCALARKIND PyArray_ScalarKind \ + (int, PyArrayObject **); +NPY_NO_EXPORT int PyArray_CanCoerceScalar \ + (int, int, NPY_SCALARKIND); +NPY_NO_EXPORT npy_bool PyArray_CanCastScalar \ + (PyTypeObject *, PyTypeObject *); +NPY_NO_EXPORT int PyArray_RemoveSmallest \ + (PyArrayMultiIterObject *); +NPY_NO_EXPORT int PyArray_ElementStrides \ + (PyObject *); +NPY_NO_EXPORT void PyArray_Item_INCREF \ + (char *, PyArray_Descr *); +NPY_NO_EXPORT void PyArray_Item_XDECREF \ + (char *, PyArray_Descr *); +NPY_NO_EXPORT PyObject * PyArray_Transpose \ + (PyArrayObject *, PyArray_Dims *); +NPY_NO_EXPORT PyObject * PyArray_TakeFrom \ + (PyArrayObject *, PyObject *, int, PyArrayObject *, NPY_CLIPMODE); +NPY_NO_EXPORT PyObject * PyArray_PutTo \ + (PyArrayObject *, PyObject*, PyObject *, NPY_CLIPMODE); +NPY_NO_EXPORT PyObject * PyArray_PutMask \ + (PyArrayObject *, PyObject*, PyObject*); +NPY_NO_EXPORT PyObject * PyArray_Repeat \ + (PyArrayObject *, PyObject *, int); +NPY_NO_EXPORT PyObject * PyArray_Choose \ + (PyArrayObject *, PyObject *, PyArrayObject *, NPY_CLIPMODE); +NPY_NO_EXPORT int PyArray_Sort \ + (PyArrayObject *, int, NPY_SORTKIND); +NPY_NO_EXPORT PyObject * PyArray_ArgSort \ + (PyArrayObject *, int, NPY_SORTKIND); +NPY_NO_EXPORT PyObject * PyArray_SearchSorted \ + (PyArrayObject *, PyObject *, NPY_SEARCHSIDE, PyObject *); +NPY_NO_EXPORT PyObject * PyArray_ArgMax \ + (PyArrayObject *, int, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_ArgMin \ + (PyArrayObject *, int, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_Reshape \ + (PyArrayObject *, PyObject *); +NPY_NO_EXPORT PyObject * PyArray_Newshape \ + (PyArrayObject *, PyArray_Dims *, NPY_ORDER); +NPY_NO_EXPORT PyObject * PyArray_Squeeze \ + (PyArrayObject *); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) PyObject * PyArray_View \ + (PyArrayObject *, PyArray_Descr *, PyTypeObject *); +NPY_NO_EXPORT PyObject * PyArray_SwapAxes \ + (PyArrayObject *, int, int); +NPY_NO_EXPORT PyObject * PyArray_Max \ + (PyArrayObject *, int, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_Min \ + (PyArrayObject *, int, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_Ptp \ + (PyArrayObject *, int, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_Mean \ + (PyArrayObject *, int, int, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_Trace \ + (PyArrayObject *, int, int, int, int, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_Diagonal \ + (PyArrayObject *, int, int, int); +NPY_NO_EXPORT PyObject * PyArray_Clip \ + (PyArrayObject *, PyObject *, PyObject *, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_Conjugate \ + (PyArrayObject *, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_Nonzero \ + (PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_Std \ + (PyArrayObject *, int, int, PyArrayObject *, int); +NPY_NO_EXPORT PyObject * PyArray_Sum \ + (PyArrayObject *, int, int, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_CumSum \ + (PyArrayObject *, int, int, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_Prod \ + (PyArrayObject *, int, int, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_CumProd \ + (PyArrayObject *, int, int, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_All \ + (PyArrayObject *, int, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_Any \ + (PyArrayObject *, int, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_Compress \ + (PyArrayObject *, PyObject *, int, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyArray_Flatten \ + (PyArrayObject *, NPY_ORDER); +NPY_NO_EXPORT PyObject * PyArray_Ravel \ + (PyArrayObject *, NPY_ORDER); +NPY_NO_EXPORT npy_intp PyArray_MultiplyList \ + (npy_intp const *, int); +NPY_NO_EXPORT int PyArray_MultiplyIntList \ + (int const *, int); +NPY_NO_EXPORT void * PyArray_GetPtr \ + (PyArrayObject *, npy_intp const*); +NPY_NO_EXPORT int PyArray_CompareLists \ + (npy_intp const *, npy_intp const *, int); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(5) int PyArray_AsCArray \ + (PyObject **, void *, npy_intp *, int, PyArray_Descr*); +NPY_NO_EXPORT int PyArray_Free \ + (PyObject *, void *); +NPY_NO_EXPORT int PyArray_Converter \ + (PyObject *, PyObject **); +NPY_NO_EXPORT int PyArray_IntpFromSequence \ + (PyObject *, npy_intp *, int); +NPY_NO_EXPORT PyObject * PyArray_Concatenate \ + (PyObject *, int); +NPY_NO_EXPORT PyObject * PyArray_InnerProduct \ + (PyObject *, PyObject *); +NPY_NO_EXPORT PyObject * PyArray_MatrixProduct \ + (PyObject *, PyObject *); +NPY_NO_EXPORT PyObject * PyArray_Correlate \ + (PyObject *, PyObject *, int); +NPY_NO_EXPORT int PyArray_DescrConverter \ + (PyObject *, PyArray_Descr **); +NPY_NO_EXPORT int PyArray_DescrConverter2 \ + (PyObject *, PyArray_Descr **); +NPY_NO_EXPORT int PyArray_IntpConverter \ + (PyObject *, PyArray_Dims *); +NPY_NO_EXPORT int PyArray_BufferConverter \ + (PyObject *, PyArray_Chunk *); +NPY_NO_EXPORT int PyArray_AxisConverter \ + (PyObject *, int *); +NPY_NO_EXPORT int PyArray_BoolConverter \ + (PyObject *, npy_bool *); +NPY_NO_EXPORT int PyArray_ByteorderConverter \ + (PyObject *, char *); +NPY_NO_EXPORT int PyArray_OrderConverter \ + (PyObject *, NPY_ORDER *); +NPY_NO_EXPORT unsigned char PyArray_EquivTypes \ + (PyArray_Descr *, PyArray_Descr *); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(3) PyObject * PyArray_Zeros \ + (int, npy_intp const *, PyArray_Descr *, int); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(3) PyObject * PyArray_Empty \ + (int, npy_intp const *, PyArray_Descr *, int); +NPY_NO_EXPORT PyObject * PyArray_Where \ + (PyObject *, PyObject *, PyObject *); +NPY_NO_EXPORT PyObject * PyArray_Arange \ + (double, double, double, int); +NPY_NO_EXPORT PyObject * PyArray_ArangeObj \ + (PyObject *, PyObject *, PyObject *, PyArray_Descr *); +NPY_NO_EXPORT int PyArray_SortkindConverter \ + (PyObject *, NPY_SORTKIND *); +NPY_NO_EXPORT PyObject * PyArray_LexSort \ + (PyObject *, int); +NPY_NO_EXPORT PyObject * PyArray_Round \ + (PyArrayObject *, int, PyArrayObject *); +NPY_NO_EXPORT unsigned char PyArray_EquivTypenums \ + (int, int); +NPY_NO_EXPORT int PyArray_RegisterDataType \ + (PyArray_DescrProto *); +NPY_NO_EXPORT int PyArray_RegisterCastFunc \ + (PyArray_Descr *, int, PyArray_VectorUnaryFunc *); +NPY_NO_EXPORT int PyArray_RegisterCanCast \ + (PyArray_Descr *, int, NPY_SCALARKIND); +NPY_NO_EXPORT void PyArray_InitArrFuncs \ + (PyArray_ArrFuncs *); +NPY_NO_EXPORT PyObject * PyArray_IntTupleFromIntp \ + (int, npy_intp const *); +NPY_NO_EXPORT int PyArray_ClipmodeConverter \ + (PyObject *, NPY_CLIPMODE *); +NPY_NO_EXPORT int PyArray_OutputConverter \ + (PyObject *, PyArrayObject **); +NPY_NO_EXPORT PyObject * PyArray_BroadcastToShape \ + (PyObject *, npy_intp *, int); +NPY_NO_EXPORT int PyArray_DescrAlignConverter \ + (PyObject *, PyArray_Descr **); +NPY_NO_EXPORT int PyArray_DescrAlignConverter2 \ + (PyObject *, PyArray_Descr **); +NPY_NO_EXPORT int PyArray_SearchsideConverter \ + (PyObject *, void *); +NPY_NO_EXPORT PyObject * PyArray_CheckAxis \ + (PyArrayObject *, int *, int); +NPY_NO_EXPORT npy_intp PyArray_OverflowMultiplyList \ + (npy_intp const *, int); +NPY_NO_EXPORT PyObject* PyArray_MultiIterFromObjects \ + (PyObject **, int, int, ...); +NPY_NO_EXPORT int PyArray_GetEndianness \ + (void); +NPY_NO_EXPORT unsigned int PyArray_GetNDArrayCFeatureVersion \ + (void); +NPY_NO_EXPORT PyObject * PyArray_Correlate2 \ + (PyObject *, PyObject *, int); +NPY_NO_EXPORT PyObject* PyArray_NeighborhoodIterNew \ + (PyArrayIterObject *, const npy_intp *, int, PyArrayObject*); +extern NPY_NO_EXPORT PyTypeObject PyTimeIntegerArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyDatetimeArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyTimedeltaArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject PyHalfArrType_Type; + +extern NPY_NO_EXPORT PyTypeObject NpyIter_Type; + +NPY_NO_EXPORT NPY_ARRAYMETHOD_FLAGS NpyIter_GetTransferFlags \ + (NpyIter *); +NPY_NO_EXPORT NpyIter * NpyIter_New \ + (PyArrayObject *, npy_uint32, NPY_ORDER, NPY_CASTING, PyArray_Descr*); +NPY_NO_EXPORT NpyIter * NpyIter_MultiNew \ + (int, PyArrayObject **, npy_uint32, NPY_ORDER, NPY_CASTING, npy_uint32 *, PyArray_Descr **); +NPY_NO_EXPORT NpyIter * NpyIter_AdvancedNew \ + (int, PyArrayObject **, npy_uint32, NPY_ORDER, NPY_CASTING, npy_uint32 *, PyArray_Descr **, int, int **, npy_intp *, npy_intp); +NPY_NO_EXPORT NpyIter * NpyIter_Copy \ + (NpyIter *); +NPY_NO_EXPORT int NpyIter_Deallocate \ + (NpyIter *); +NPY_NO_EXPORT npy_bool NpyIter_HasDelayedBufAlloc \ + (NpyIter *); +NPY_NO_EXPORT npy_bool NpyIter_HasExternalLoop \ + (NpyIter *); +NPY_NO_EXPORT int NpyIter_EnableExternalLoop \ + (NpyIter *); +NPY_NO_EXPORT npy_intp * NpyIter_GetInnerStrideArray \ + (NpyIter *); +NPY_NO_EXPORT npy_intp * NpyIter_GetInnerLoopSizePtr \ + (NpyIter *); +NPY_NO_EXPORT int NpyIter_Reset \ + (NpyIter *, char **); +NPY_NO_EXPORT int NpyIter_ResetBasePointers \ + (NpyIter *, char **, char **); +NPY_NO_EXPORT int NpyIter_ResetToIterIndexRange \ + (NpyIter *, npy_intp, npy_intp, char **); +NPY_NO_EXPORT int NpyIter_GetNDim \ + (NpyIter *); +NPY_NO_EXPORT int NpyIter_GetNOp \ + (NpyIter *); +NPY_NO_EXPORT NpyIter_IterNextFunc * NpyIter_GetIterNext \ + (NpyIter *, char **); +NPY_NO_EXPORT npy_intp NpyIter_GetIterSize \ + (NpyIter *); +NPY_NO_EXPORT void NpyIter_GetIterIndexRange \ + (NpyIter *, npy_intp *, npy_intp *); +NPY_NO_EXPORT npy_intp NpyIter_GetIterIndex \ + (NpyIter *); +NPY_NO_EXPORT int NpyIter_GotoIterIndex \ + (NpyIter *, npy_intp); +NPY_NO_EXPORT npy_bool NpyIter_HasMultiIndex \ + (NpyIter *); +NPY_NO_EXPORT int NpyIter_GetShape \ + (NpyIter *, npy_intp *); +NPY_NO_EXPORT NpyIter_GetMultiIndexFunc * NpyIter_GetGetMultiIndex \ + (NpyIter *, char **); +NPY_NO_EXPORT int NpyIter_GotoMultiIndex \ + (NpyIter *, npy_intp const *); +NPY_NO_EXPORT int NpyIter_RemoveMultiIndex \ + (NpyIter *); +NPY_NO_EXPORT npy_bool NpyIter_HasIndex \ + (NpyIter *); +NPY_NO_EXPORT npy_bool NpyIter_IsBuffered \ + (NpyIter *); +NPY_NO_EXPORT npy_bool NpyIter_IsGrowInner \ + (NpyIter *); +NPY_NO_EXPORT npy_intp NpyIter_GetBufferSize \ + (NpyIter *); +NPY_NO_EXPORT npy_intp * NpyIter_GetIndexPtr \ + (NpyIter *); +NPY_NO_EXPORT int NpyIter_GotoIndex \ + (NpyIter *, npy_intp); +NPY_NO_EXPORT char ** NpyIter_GetDataPtrArray \ + (NpyIter *); +NPY_NO_EXPORT PyArray_Descr ** NpyIter_GetDescrArray \ + (NpyIter *); +NPY_NO_EXPORT PyArrayObject ** NpyIter_GetOperandArray \ + (NpyIter *); +NPY_NO_EXPORT PyArrayObject * NpyIter_GetIterView \ + (NpyIter *, npy_intp); +NPY_NO_EXPORT void NpyIter_GetReadFlags \ + (NpyIter *, char *); +NPY_NO_EXPORT void NpyIter_GetWriteFlags \ + (NpyIter *, char *); +NPY_NO_EXPORT void NpyIter_DebugPrint \ + (NpyIter *); +NPY_NO_EXPORT npy_bool NpyIter_IterationNeedsAPI \ + (NpyIter *); +NPY_NO_EXPORT void NpyIter_GetInnerFixedStrideArray \ + (NpyIter *, npy_intp *); +NPY_NO_EXPORT int NpyIter_RemoveAxis \ + (NpyIter *, int); +NPY_NO_EXPORT npy_intp * NpyIter_GetAxisStrideArray \ + (NpyIter *, int); +NPY_NO_EXPORT npy_bool NpyIter_RequiresBuffering \ + (NpyIter *); +NPY_NO_EXPORT char ** NpyIter_GetInitialDataPtrArray \ + (NpyIter *); +NPY_NO_EXPORT int NpyIter_CreateCompatibleStrides \ + (NpyIter *, npy_intp, npy_intp *); +NPY_NO_EXPORT int PyArray_CastingConverter \ + (PyObject *, NPY_CASTING *); +NPY_NO_EXPORT npy_intp PyArray_CountNonzero \ + (PyArrayObject *); +NPY_NO_EXPORT PyArray_Descr * PyArray_PromoteTypes \ + (PyArray_Descr *, PyArray_Descr *); +NPY_NO_EXPORT PyArray_Descr * PyArray_MinScalarType \ + (PyArrayObject *); +NPY_NO_EXPORT PyArray_Descr * PyArray_ResultType \ + (npy_intp, PyArrayObject *arrs[], npy_intp, PyArray_Descr *descrs[]); +NPY_NO_EXPORT npy_bool PyArray_CanCastArrayTo \ + (PyArrayObject *, PyArray_Descr *, NPY_CASTING); +NPY_NO_EXPORT npy_bool PyArray_CanCastTypeTo \ + (PyArray_Descr *, PyArray_Descr *, NPY_CASTING); +NPY_NO_EXPORT PyArrayObject * PyArray_EinsteinSum \ + (char *, npy_intp, PyArrayObject **, PyArray_Descr *, NPY_ORDER, NPY_CASTING, PyArrayObject *); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(3) PyObject * PyArray_NewLikeArray \ + (PyArrayObject *, NPY_ORDER, PyArray_Descr *, int); +NPY_NO_EXPORT int PyArray_ConvertClipmodeSequence \ + (PyObject *, NPY_CLIPMODE *, int); +NPY_NO_EXPORT PyObject * PyArray_MatrixProduct2 \ + (PyObject *, PyObject *, PyArrayObject*); +NPY_NO_EXPORT npy_bool NpyIter_IsFirstVisit \ + (NpyIter *, int); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) int PyArray_SetBaseObject \ + (PyArrayObject *, PyObject *); +NPY_NO_EXPORT void PyArray_CreateSortedStridePerm \ + (int, npy_intp const *, npy_stride_sort_item *); +NPY_NO_EXPORT void PyArray_RemoveAxesInPlace \ + (PyArrayObject *, const npy_bool *); +NPY_NO_EXPORT void PyArray_DebugPrint \ + (PyArrayObject *); +NPY_NO_EXPORT int PyArray_FailUnlessWriteable \ + (PyArrayObject *, const char *); +NPY_NO_EXPORT NPY_STEALS_REF_TO_ARG(2) int PyArray_SetUpdateIfCopyBase \ + (PyArrayObject *, PyArrayObject *); +NPY_NO_EXPORT void * PyDataMem_NEW \ + (size_t); +NPY_NO_EXPORT void PyDataMem_FREE \ + (void *); +NPY_NO_EXPORT void * PyDataMem_RENEW \ + (void *, size_t); +extern NPY_NO_EXPORT NPY_CASTING NPY_DEFAULT_ASSIGN_CASTING; + +NPY_NO_EXPORT int PyArray_Partition \ + (PyArrayObject *, PyArrayObject *, int, NPY_SELECTKIND); +NPY_NO_EXPORT PyObject * PyArray_ArgPartition \ + (PyArrayObject *, PyArrayObject *, int, NPY_SELECTKIND); +NPY_NO_EXPORT int PyArray_SelectkindConverter \ + (PyObject *, NPY_SELECTKIND *); +NPY_NO_EXPORT void * PyDataMem_NEW_ZEROED \ + (size_t, size_t); +NPY_NO_EXPORT int PyArray_CheckAnyScalarExact \ + (PyObject *); +NPY_NO_EXPORT int PyArray_ResolveWritebackIfCopy \ + (PyArrayObject *); +NPY_NO_EXPORT int PyArray_SetWritebackIfCopyBase \ + (PyArrayObject *, PyArrayObject *); +NPY_NO_EXPORT PyObject * PyDataMem_SetHandler \ + (PyObject *); +NPY_NO_EXPORT PyObject * PyDataMem_GetHandler \ + (void); +extern NPY_NO_EXPORT PyObject* PyDataMem_DefaultHandler; + +NPY_NO_EXPORT int NpyDatetime_ConvertDatetime64ToDatetimeStruct \ + (PyArray_DatetimeMetaData *, npy_datetime, npy_datetimestruct *); +NPY_NO_EXPORT int NpyDatetime_ConvertDatetimeStructToDatetime64 \ + (PyArray_DatetimeMetaData *, const npy_datetimestruct *, npy_datetime *); +NPY_NO_EXPORT int NpyDatetime_ConvertPyDateTimeToDatetimeStruct \ + (PyObject *, npy_datetimestruct *, NPY_DATETIMEUNIT *, int); +NPY_NO_EXPORT int NpyDatetime_GetDatetimeISO8601StrLen \ + (int, NPY_DATETIMEUNIT); +NPY_NO_EXPORT int NpyDatetime_MakeISO8601Datetime \ + (npy_datetimestruct *, char *, npy_intp, int, int, NPY_DATETIMEUNIT, int, NPY_CASTING); +NPY_NO_EXPORT int NpyDatetime_ParseISO8601Datetime \ + (char const *, Py_ssize_t, NPY_DATETIMEUNIT, NPY_CASTING, npy_datetimestruct *, NPY_DATETIMEUNIT *, npy_bool *); +NPY_NO_EXPORT int NpyString_load \ + (npy_string_allocator *, const npy_packed_static_string *, npy_static_string *); +NPY_NO_EXPORT int NpyString_pack \ + (npy_string_allocator *, npy_packed_static_string *, const char *, size_t); +NPY_NO_EXPORT int NpyString_pack_null \ + (npy_string_allocator *, npy_packed_static_string *); +NPY_NO_EXPORT npy_string_allocator * NpyString_acquire_allocator \ + (const PyArray_StringDTypeObject *); +NPY_NO_EXPORT void NpyString_acquire_allocators \ + (size_t, PyArray_Descr *const descrs[], npy_string_allocator *allocators[]); +NPY_NO_EXPORT void NpyString_release_allocator \ + (npy_string_allocator *); +NPY_NO_EXPORT void NpyString_release_allocators \ + (size_t, npy_string_allocator *allocators[]); +NPY_NO_EXPORT PyArray_Descr * PyArray_GetDefaultDescr \ + (PyArray_DTypeMeta *); +NPY_NO_EXPORT int PyArrayInitDTypeMeta_FromSpec \ + (PyArray_DTypeMeta *, PyArrayDTypeMeta_Spec *); +NPY_NO_EXPORT PyArray_DTypeMeta * PyArray_CommonDType \ + (PyArray_DTypeMeta *, PyArray_DTypeMeta *); +NPY_NO_EXPORT PyArray_DTypeMeta * PyArray_PromoteDTypeSequence \ + (npy_intp, PyArray_DTypeMeta **); +NPY_NO_EXPORT PyArray_ArrFuncs * _PyDataType_GetArrFuncs \ + (const PyArray_Descr *); + +#else + +#if defined(PY_ARRAY_UNIQUE_SYMBOL) + #define PyArray_API PY_ARRAY_UNIQUE_SYMBOL + #define _NPY_VERSION_CONCAT_HELPER2(x, y) x ## y + #define _NPY_VERSION_CONCAT_HELPER(arg) \ + _NPY_VERSION_CONCAT_HELPER2(arg, PyArray_RUNTIME_VERSION) + #define PyArray_RUNTIME_VERSION \ + _NPY_VERSION_CONCAT_HELPER(PY_ARRAY_UNIQUE_SYMBOL) +#endif + +/* By default do not export API in an .so (was never the case on windows) */ +#ifndef NPY_API_SYMBOL_ATTRIBUTE + #define NPY_API_SYMBOL_ATTRIBUTE NPY_VISIBILITY_HIDDEN +#endif + +#if defined(NO_IMPORT) || defined(NO_IMPORT_ARRAY) +extern NPY_API_SYMBOL_ATTRIBUTE void **PyArray_API; +extern NPY_API_SYMBOL_ATTRIBUTE int PyArray_RUNTIME_VERSION; +#else +#if defined(PY_ARRAY_UNIQUE_SYMBOL) +NPY_API_SYMBOL_ATTRIBUTE void **PyArray_API; +NPY_API_SYMBOL_ATTRIBUTE int PyArray_RUNTIME_VERSION; +#else +static void **PyArray_API = NULL; +static int PyArray_RUNTIME_VERSION = 0; +#endif +#endif + +#define PyArray_GetNDArrayCVersion \ + (*(unsigned int (*)(void)) \ + PyArray_API[0]) +#define PyArray_Type (*(PyTypeObject *)PyArray_API[2]) +#define PyArrayDescr_Type (*(PyTypeObject *)PyArray_API[3]) +#define PyArrayIter_Type (*(PyTypeObject *)PyArray_API[5]) +#define PyArrayMultiIter_Type (*(PyTypeObject *)PyArray_API[6]) +#define NPY_NUMUSERTYPES (*(int *)PyArray_API[7]) +#define PyBoolArrType_Type (*(PyTypeObject *)PyArray_API[8]) +#define _PyArrayScalar_BoolValues ((PyBoolScalarObject *)PyArray_API[9]) +#define PyGenericArrType_Type (*(PyTypeObject *)PyArray_API[10]) +#define PyNumberArrType_Type (*(PyTypeObject *)PyArray_API[11]) +#define PyIntegerArrType_Type (*(PyTypeObject *)PyArray_API[12]) +#define PySignedIntegerArrType_Type (*(PyTypeObject *)PyArray_API[13]) +#define PyUnsignedIntegerArrType_Type (*(PyTypeObject *)PyArray_API[14]) +#define PyInexactArrType_Type (*(PyTypeObject *)PyArray_API[15]) +#define PyFloatingArrType_Type (*(PyTypeObject *)PyArray_API[16]) +#define PyComplexFloatingArrType_Type (*(PyTypeObject *)PyArray_API[17]) +#define PyFlexibleArrType_Type (*(PyTypeObject *)PyArray_API[18]) +#define PyCharacterArrType_Type (*(PyTypeObject *)PyArray_API[19]) +#define PyByteArrType_Type (*(PyTypeObject *)PyArray_API[20]) +#define PyShortArrType_Type (*(PyTypeObject *)PyArray_API[21]) +#define PyIntArrType_Type (*(PyTypeObject *)PyArray_API[22]) +#define PyLongArrType_Type (*(PyTypeObject *)PyArray_API[23]) +#define PyLongLongArrType_Type (*(PyTypeObject *)PyArray_API[24]) +#define PyUByteArrType_Type (*(PyTypeObject *)PyArray_API[25]) +#define PyUShortArrType_Type (*(PyTypeObject *)PyArray_API[26]) +#define PyUIntArrType_Type (*(PyTypeObject *)PyArray_API[27]) +#define PyULongArrType_Type (*(PyTypeObject *)PyArray_API[28]) +#define PyULongLongArrType_Type (*(PyTypeObject *)PyArray_API[29]) +#define PyFloatArrType_Type (*(PyTypeObject *)PyArray_API[30]) +#define PyDoubleArrType_Type (*(PyTypeObject *)PyArray_API[31]) +#define PyLongDoubleArrType_Type (*(PyTypeObject *)PyArray_API[32]) +#define PyCFloatArrType_Type (*(PyTypeObject *)PyArray_API[33]) +#define PyCDoubleArrType_Type (*(PyTypeObject *)PyArray_API[34]) +#define PyCLongDoubleArrType_Type (*(PyTypeObject *)PyArray_API[35]) +#define PyObjectArrType_Type (*(PyTypeObject *)PyArray_API[36]) +#define PyStringArrType_Type (*(PyTypeObject *)PyArray_API[37]) +#define PyUnicodeArrType_Type (*(PyTypeObject *)PyArray_API[38]) +#define PyVoidArrType_Type (*(PyTypeObject *)PyArray_API[39]) +#define PyArray_INCREF \ + (*(int (*)(PyArrayObject *)) \ + PyArray_API[42]) +#define PyArray_XDECREF \ + (*(int (*)(PyArrayObject *)) \ + PyArray_API[43]) +#define PyArray_SetStringFunction \ + (*(void (*)(PyObject *, int)) \ + PyArray_API[44]) +#define PyArray_DescrFromType \ + (*(PyArray_Descr * (*)(int)) \ + PyArray_API[45]) +#define PyArray_TypeObjectFromType \ + (*(PyObject * (*)(int)) \ + PyArray_API[46]) +#define PyArray_Zero \ + (*(char * (*)(PyArrayObject *)) \ + PyArray_API[47]) +#define PyArray_One \ + (*(char * (*)(PyArrayObject *)) \ + PyArray_API[48]) +#define PyArray_CastToType \ + (*(PyObject * (*)(PyArrayObject *, PyArray_Descr *, int)) \ + PyArray_API[49]) +#define PyArray_CopyInto \ + (*(int (*)(PyArrayObject *, PyArrayObject *)) \ + PyArray_API[50]) +#define PyArray_CopyAnyInto \ + (*(int (*)(PyArrayObject *, PyArrayObject *)) \ + PyArray_API[51]) +#define PyArray_CanCastSafely \ + (*(int (*)(int, int)) \ + PyArray_API[52]) +#define PyArray_CanCastTo \ + (*(npy_bool (*)(PyArray_Descr *, PyArray_Descr *)) \ + PyArray_API[53]) +#define PyArray_ObjectType \ + (*(int (*)(PyObject *, int)) \ + PyArray_API[54]) +#define PyArray_DescrFromObject \ + (*(PyArray_Descr * (*)(PyObject *, PyArray_Descr *)) \ + PyArray_API[55]) +#define PyArray_ConvertToCommonType \ + (*(PyArrayObject ** (*)(PyObject *, int *)) \ + PyArray_API[56]) +#define PyArray_DescrFromScalar \ + (*(PyArray_Descr * (*)(PyObject *)) \ + PyArray_API[57]) +#define PyArray_DescrFromTypeObject \ + (*(PyArray_Descr * (*)(PyObject *)) \ + PyArray_API[58]) +#define PyArray_Size \ + (*(npy_intp (*)(PyObject *)) \ + PyArray_API[59]) +#define PyArray_Scalar \ + (*(PyObject * (*)(void *, PyArray_Descr *, PyObject *)) \ + PyArray_API[60]) +#define PyArray_FromScalar \ + (*(PyObject * (*)(PyObject *, PyArray_Descr *)) \ + PyArray_API[61]) +#define PyArray_ScalarAsCtype \ + (*(void (*)(PyObject *, void *)) \ + PyArray_API[62]) +#define PyArray_CastScalarToCtype \ + (*(int (*)(PyObject *, void *, PyArray_Descr *)) \ + PyArray_API[63]) +#define PyArray_CastScalarDirect \ + (*(int (*)(PyObject *, PyArray_Descr *, void *, int)) \ + PyArray_API[64]) + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define PyArray_Pack \ + (*(int (*)(PyArray_Descr *, void *, PyObject *)) \ + PyArray_API[65]) +#endif +#define PyArray_FromAny \ + (*(PyObject * (*)(PyObject *, PyArray_Descr *, int, int, int, PyObject *)) \ + PyArray_API[69]) +#define PyArray_EnsureArray \ + (*(PyObject * (*)(PyObject *)) \ + PyArray_API[70]) +#define PyArray_EnsureAnyArray \ + (*(PyObject * (*)(PyObject *)) \ + PyArray_API[71]) +#define PyArray_FromFile \ + (*(PyObject * (*)(FILE *, PyArray_Descr *, npy_intp, char *)) \ + PyArray_API[72]) +#define PyArray_FromString \ + (*(PyObject * (*)(char *, npy_intp, PyArray_Descr *, npy_intp, char *)) \ + PyArray_API[73]) +#define PyArray_FromBuffer \ + (*(PyObject * (*)(PyObject *, PyArray_Descr *, npy_intp, npy_intp)) \ + PyArray_API[74]) +#define PyArray_FromIter \ + (*(PyObject * (*)(PyObject *, PyArray_Descr *, npy_intp)) \ + PyArray_API[75]) +#define PyArray_Return \ + (*(PyObject * (*)(PyArrayObject *)) \ + PyArray_API[76]) +#define PyArray_GetField \ + (*(PyObject * (*)(PyArrayObject *, PyArray_Descr *, int)) \ + PyArray_API[77]) +#define PyArray_SetField \ + (*(int (*)(PyArrayObject *, PyArray_Descr *, int, PyObject *)) \ + PyArray_API[78]) +#define PyArray_Byteswap \ + (*(PyObject * (*)(PyArrayObject *, npy_bool)) \ + PyArray_API[79]) +#define PyArray_Resize \ + (*(PyObject * (*)(PyArrayObject *, PyArray_Dims *, int, NPY_ORDER NPY_UNUSED(order))) \ + PyArray_API[80]) +#define PyArray_CopyObject \ + (*(int (*)(PyArrayObject *, PyObject *)) \ + PyArray_API[84]) +#define PyArray_NewCopy \ + (*(PyObject * (*)(PyArrayObject *, NPY_ORDER)) \ + PyArray_API[85]) +#define PyArray_ToList \ + (*(PyObject * (*)(PyArrayObject *)) \ + PyArray_API[86]) +#define PyArray_ToString \ + (*(PyObject * (*)(PyArrayObject *, NPY_ORDER)) \ + PyArray_API[87]) +#define PyArray_ToFile \ + (*(int (*)(PyArrayObject *, FILE *, char *, char *)) \ + PyArray_API[88]) +#define PyArray_Dump \ + (*(int (*)(PyObject *, PyObject *, int)) \ + PyArray_API[89]) +#define PyArray_Dumps \ + (*(PyObject * (*)(PyObject *, int)) \ + PyArray_API[90]) +#define PyArray_ValidType \ + (*(int (*)(int)) \ + PyArray_API[91]) +#define PyArray_UpdateFlags \ + (*(void (*)(PyArrayObject *, int)) \ + PyArray_API[92]) +#define PyArray_New \ + (*(PyObject * (*)(PyTypeObject *, int, npy_intp const *, int, npy_intp const *, void *, int, int, PyObject *)) \ + PyArray_API[93]) +#define PyArray_NewFromDescr \ + (*(PyObject * (*)(PyTypeObject *, PyArray_Descr *, int, npy_intp const *, npy_intp const *, void *, int, PyObject *)) \ + PyArray_API[94]) +#define PyArray_DescrNew \ + (*(PyArray_Descr * (*)(PyArray_Descr *)) \ + PyArray_API[95]) +#define PyArray_DescrNewFromType \ + (*(PyArray_Descr * (*)(int)) \ + PyArray_API[96]) +#define PyArray_GetPriority \ + (*(double (*)(PyObject *, double)) \ + PyArray_API[97]) +#define PyArray_IterNew \ + (*(PyObject * (*)(PyObject *)) \ + PyArray_API[98]) +#define PyArray_MultiIterNew \ + (*(PyObject* (*)(int, ...)) \ + PyArray_API[99]) +#define PyArray_PyIntAsInt \ + (*(int (*)(PyObject *)) \ + PyArray_API[100]) +#define PyArray_PyIntAsIntp \ + (*(npy_intp (*)(PyObject *)) \ + PyArray_API[101]) +#define PyArray_Broadcast \ + (*(int (*)(PyArrayMultiIterObject *)) \ + PyArray_API[102]) +#define PyArray_FillWithScalar \ + (*(int (*)(PyArrayObject *, PyObject *)) \ + PyArray_API[104]) +#define PyArray_CheckStrides \ + (*(npy_bool (*)(int, int, npy_intp, npy_intp, npy_intp const *, npy_intp const *)) \ + PyArray_API[105]) +#define PyArray_DescrNewByteorder \ + (*(PyArray_Descr * (*)(PyArray_Descr *, char)) \ + PyArray_API[106]) +#define PyArray_IterAllButAxis \ + (*(PyObject * (*)(PyObject *, int *)) \ + PyArray_API[107]) +#define PyArray_CheckFromAny \ + (*(PyObject * (*)(PyObject *, PyArray_Descr *, int, int, int, PyObject *)) \ + PyArray_API[108]) +#define PyArray_FromArray \ + (*(PyObject * (*)(PyArrayObject *, PyArray_Descr *, int)) \ + PyArray_API[109]) +#define PyArray_FromInterface \ + (*(PyObject * (*)(PyObject *)) \ + PyArray_API[110]) +#define PyArray_FromStructInterface \ + (*(PyObject * (*)(PyObject *)) \ + PyArray_API[111]) +#define PyArray_FromArrayAttr \ + (*(PyObject * (*)(PyObject *, PyArray_Descr *, PyObject *)) \ + PyArray_API[112]) +#define PyArray_ScalarKind \ + (*(NPY_SCALARKIND (*)(int, PyArrayObject **)) \ + PyArray_API[113]) +#define PyArray_CanCoerceScalar \ + (*(int (*)(int, int, NPY_SCALARKIND)) \ + PyArray_API[114]) +#define PyArray_CanCastScalar \ + (*(npy_bool (*)(PyTypeObject *, PyTypeObject *)) \ + PyArray_API[116]) +#define PyArray_RemoveSmallest \ + (*(int (*)(PyArrayMultiIterObject *)) \ + PyArray_API[118]) +#define PyArray_ElementStrides \ + (*(int (*)(PyObject *)) \ + PyArray_API[119]) +#define PyArray_Item_INCREF \ + (*(void (*)(char *, PyArray_Descr *)) \ + PyArray_API[120]) +#define PyArray_Item_XDECREF \ + (*(void (*)(char *, PyArray_Descr *)) \ + PyArray_API[121]) +#define PyArray_Transpose \ + (*(PyObject * (*)(PyArrayObject *, PyArray_Dims *)) \ + PyArray_API[123]) +#define PyArray_TakeFrom \ + (*(PyObject * (*)(PyArrayObject *, PyObject *, int, PyArrayObject *, NPY_CLIPMODE)) \ + PyArray_API[124]) +#define PyArray_PutTo \ + (*(PyObject * (*)(PyArrayObject *, PyObject*, PyObject *, NPY_CLIPMODE)) \ + PyArray_API[125]) +#define PyArray_PutMask \ + (*(PyObject * (*)(PyArrayObject *, PyObject*, PyObject*)) \ + PyArray_API[126]) +#define PyArray_Repeat \ + (*(PyObject * (*)(PyArrayObject *, PyObject *, int)) \ + PyArray_API[127]) +#define PyArray_Choose \ + (*(PyObject * (*)(PyArrayObject *, PyObject *, PyArrayObject *, NPY_CLIPMODE)) \ + PyArray_API[128]) +#define PyArray_Sort \ + (*(int (*)(PyArrayObject *, int, NPY_SORTKIND)) \ + PyArray_API[129]) +#define PyArray_ArgSort \ + (*(PyObject * (*)(PyArrayObject *, int, NPY_SORTKIND)) \ + PyArray_API[130]) +#define PyArray_SearchSorted \ + (*(PyObject * (*)(PyArrayObject *, PyObject *, NPY_SEARCHSIDE, PyObject *)) \ + PyArray_API[131]) +#define PyArray_ArgMax \ + (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \ + PyArray_API[132]) +#define PyArray_ArgMin \ + (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \ + PyArray_API[133]) +#define PyArray_Reshape \ + (*(PyObject * (*)(PyArrayObject *, PyObject *)) \ + PyArray_API[134]) +#define PyArray_Newshape \ + (*(PyObject * (*)(PyArrayObject *, PyArray_Dims *, NPY_ORDER)) \ + PyArray_API[135]) +#define PyArray_Squeeze \ + (*(PyObject * (*)(PyArrayObject *)) \ + PyArray_API[136]) +#define PyArray_View \ + (*(PyObject * (*)(PyArrayObject *, PyArray_Descr *, PyTypeObject *)) \ + PyArray_API[137]) +#define PyArray_SwapAxes \ + (*(PyObject * (*)(PyArrayObject *, int, int)) \ + PyArray_API[138]) +#define PyArray_Max \ + (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \ + PyArray_API[139]) +#define PyArray_Min \ + (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \ + PyArray_API[140]) +#define PyArray_Ptp \ + (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \ + PyArray_API[141]) +#define PyArray_Mean \ + (*(PyObject * (*)(PyArrayObject *, int, int, PyArrayObject *)) \ + PyArray_API[142]) +#define PyArray_Trace \ + (*(PyObject * (*)(PyArrayObject *, int, int, int, int, PyArrayObject *)) \ + PyArray_API[143]) +#define PyArray_Diagonal \ + (*(PyObject * (*)(PyArrayObject *, int, int, int)) \ + PyArray_API[144]) +#define PyArray_Clip \ + (*(PyObject * (*)(PyArrayObject *, PyObject *, PyObject *, PyArrayObject *)) \ + PyArray_API[145]) +#define PyArray_Conjugate \ + (*(PyObject * (*)(PyArrayObject *, PyArrayObject *)) \ + PyArray_API[146]) +#define PyArray_Nonzero \ + (*(PyObject * (*)(PyArrayObject *)) \ + PyArray_API[147]) +#define PyArray_Std \ + (*(PyObject * (*)(PyArrayObject *, int, int, PyArrayObject *, int)) \ + PyArray_API[148]) +#define PyArray_Sum \ + (*(PyObject * (*)(PyArrayObject *, int, int, PyArrayObject *)) \ + PyArray_API[149]) +#define PyArray_CumSum \ + (*(PyObject * (*)(PyArrayObject *, int, int, PyArrayObject *)) \ + PyArray_API[150]) +#define PyArray_Prod \ + (*(PyObject * (*)(PyArrayObject *, int, int, PyArrayObject *)) \ + PyArray_API[151]) +#define PyArray_CumProd \ + (*(PyObject * (*)(PyArrayObject *, int, int, PyArrayObject *)) \ + PyArray_API[152]) +#define PyArray_All \ + (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \ + PyArray_API[153]) +#define PyArray_Any \ + (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \ + PyArray_API[154]) +#define PyArray_Compress \ + (*(PyObject * (*)(PyArrayObject *, PyObject *, int, PyArrayObject *)) \ + PyArray_API[155]) +#define PyArray_Flatten \ + (*(PyObject * (*)(PyArrayObject *, NPY_ORDER)) \ + PyArray_API[156]) +#define PyArray_Ravel \ + (*(PyObject * (*)(PyArrayObject *, NPY_ORDER)) \ + PyArray_API[157]) +#define PyArray_MultiplyList \ + (*(npy_intp (*)(npy_intp const *, int)) \ + PyArray_API[158]) +#define PyArray_MultiplyIntList \ + (*(int (*)(int const *, int)) \ + PyArray_API[159]) +#define PyArray_GetPtr \ + (*(void * (*)(PyArrayObject *, npy_intp const*)) \ + PyArray_API[160]) +#define PyArray_CompareLists \ + (*(int (*)(npy_intp const *, npy_intp const *, int)) \ + PyArray_API[161]) +#define PyArray_AsCArray \ + (*(int (*)(PyObject **, void *, npy_intp *, int, PyArray_Descr*)) \ + PyArray_API[162]) +#define PyArray_Free \ + (*(int (*)(PyObject *, void *)) \ + PyArray_API[165]) +#define PyArray_Converter \ + (*(int (*)(PyObject *, PyObject **)) \ + PyArray_API[166]) +#define PyArray_IntpFromSequence \ + (*(int (*)(PyObject *, npy_intp *, int)) \ + PyArray_API[167]) +#define PyArray_Concatenate \ + (*(PyObject * (*)(PyObject *, int)) \ + PyArray_API[168]) +#define PyArray_InnerProduct \ + (*(PyObject * (*)(PyObject *, PyObject *)) \ + PyArray_API[169]) +#define PyArray_MatrixProduct \ + (*(PyObject * (*)(PyObject *, PyObject *)) \ + PyArray_API[170]) +#define PyArray_Correlate \ + (*(PyObject * (*)(PyObject *, PyObject *, int)) \ + PyArray_API[172]) +#define PyArray_DescrConverter \ + (*(int (*)(PyObject *, PyArray_Descr **)) \ + PyArray_API[174]) +#define PyArray_DescrConverter2 \ + (*(int (*)(PyObject *, PyArray_Descr **)) \ + PyArray_API[175]) +#define PyArray_IntpConverter \ + (*(int (*)(PyObject *, PyArray_Dims *)) \ + PyArray_API[176]) +#define PyArray_BufferConverter \ + (*(int (*)(PyObject *, PyArray_Chunk *)) \ + PyArray_API[177]) +#define PyArray_AxisConverter \ + (*(int (*)(PyObject *, int *)) \ + PyArray_API[178]) +#define PyArray_BoolConverter \ + (*(int (*)(PyObject *, npy_bool *)) \ + PyArray_API[179]) +#define PyArray_ByteorderConverter \ + (*(int (*)(PyObject *, char *)) \ + PyArray_API[180]) +#define PyArray_OrderConverter \ + (*(int (*)(PyObject *, NPY_ORDER *)) \ + PyArray_API[181]) +#define PyArray_EquivTypes \ + (*(unsigned char (*)(PyArray_Descr *, PyArray_Descr *)) \ + PyArray_API[182]) +#define PyArray_Zeros \ + (*(PyObject * (*)(int, npy_intp const *, PyArray_Descr *, int)) \ + PyArray_API[183]) +#define PyArray_Empty \ + (*(PyObject * (*)(int, npy_intp const *, PyArray_Descr *, int)) \ + PyArray_API[184]) +#define PyArray_Where \ + (*(PyObject * (*)(PyObject *, PyObject *, PyObject *)) \ + PyArray_API[185]) +#define PyArray_Arange \ + (*(PyObject * (*)(double, double, double, int)) \ + PyArray_API[186]) +#define PyArray_ArangeObj \ + (*(PyObject * (*)(PyObject *, PyObject *, PyObject *, PyArray_Descr *)) \ + PyArray_API[187]) +#define PyArray_SortkindConverter \ + (*(int (*)(PyObject *, NPY_SORTKIND *)) \ + PyArray_API[188]) +#define PyArray_LexSort \ + (*(PyObject * (*)(PyObject *, int)) \ + PyArray_API[189]) +#define PyArray_Round \ + (*(PyObject * (*)(PyArrayObject *, int, PyArrayObject *)) \ + PyArray_API[190]) +#define PyArray_EquivTypenums \ + (*(unsigned char (*)(int, int)) \ + PyArray_API[191]) +#define PyArray_RegisterDataType \ + (*(int (*)(PyArray_DescrProto *)) \ + PyArray_API[192]) +#define PyArray_RegisterCastFunc \ + (*(int (*)(PyArray_Descr *, int, PyArray_VectorUnaryFunc *)) \ + PyArray_API[193]) +#define PyArray_RegisterCanCast \ + (*(int (*)(PyArray_Descr *, int, NPY_SCALARKIND)) \ + PyArray_API[194]) +#define PyArray_InitArrFuncs \ + (*(void (*)(PyArray_ArrFuncs *)) \ + PyArray_API[195]) +#define PyArray_IntTupleFromIntp \ + (*(PyObject * (*)(int, npy_intp const *)) \ + PyArray_API[196]) +#define PyArray_ClipmodeConverter \ + (*(int (*)(PyObject *, NPY_CLIPMODE *)) \ + PyArray_API[198]) +#define PyArray_OutputConverter \ + (*(int (*)(PyObject *, PyArrayObject **)) \ + PyArray_API[199]) +#define PyArray_BroadcastToShape \ + (*(PyObject * (*)(PyObject *, npy_intp *, int)) \ + PyArray_API[200]) +#define PyArray_DescrAlignConverter \ + (*(int (*)(PyObject *, PyArray_Descr **)) \ + PyArray_API[203]) +#define PyArray_DescrAlignConverter2 \ + (*(int (*)(PyObject *, PyArray_Descr **)) \ + PyArray_API[204]) +#define PyArray_SearchsideConverter \ + (*(int (*)(PyObject *, void *)) \ + PyArray_API[205]) +#define PyArray_CheckAxis \ + (*(PyObject * (*)(PyArrayObject *, int *, int)) \ + PyArray_API[206]) +#define PyArray_OverflowMultiplyList \ + (*(npy_intp (*)(npy_intp const *, int)) \ + PyArray_API[207]) +#define PyArray_MultiIterFromObjects \ + (*(PyObject* (*)(PyObject **, int, int, ...)) \ + PyArray_API[209]) +#define PyArray_GetEndianness \ + (*(int (*)(void)) \ + PyArray_API[210]) +#define PyArray_GetNDArrayCFeatureVersion \ + (*(unsigned int (*)(void)) \ + PyArray_API[211]) +#define PyArray_Correlate2 \ + (*(PyObject * (*)(PyObject *, PyObject *, int)) \ + PyArray_API[212]) +#define PyArray_NeighborhoodIterNew \ + (*(PyObject* (*)(PyArrayIterObject *, const npy_intp *, int, PyArrayObject*)) \ + PyArray_API[213]) +#define PyTimeIntegerArrType_Type (*(PyTypeObject *)PyArray_API[214]) +#define PyDatetimeArrType_Type (*(PyTypeObject *)PyArray_API[215]) +#define PyTimedeltaArrType_Type (*(PyTypeObject *)PyArray_API[216]) +#define PyHalfArrType_Type (*(PyTypeObject *)PyArray_API[217]) +#define NpyIter_Type (*(PyTypeObject *)PyArray_API[218]) + +#if NPY_FEATURE_VERSION >= NPY_2_3_API_VERSION +#define NpyIter_GetTransferFlags \ + (*(NPY_ARRAYMETHOD_FLAGS (*)(NpyIter *)) \ + PyArray_API[223]) +#endif +#define NpyIter_New \ + (*(NpyIter * (*)(PyArrayObject *, npy_uint32, NPY_ORDER, NPY_CASTING, PyArray_Descr*)) \ + PyArray_API[224]) +#define NpyIter_MultiNew \ + (*(NpyIter * (*)(int, PyArrayObject **, npy_uint32, NPY_ORDER, NPY_CASTING, npy_uint32 *, PyArray_Descr **)) \ + PyArray_API[225]) +#define NpyIter_AdvancedNew \ + (*(NpyIter * (*)(int, PyArrayObject **, npy_uint32, NPY_ORDER, NPY_CASTING, npy_uint32 *, PyArray_Descr **, int, int **, npy_intp *, npy_intp)) \ + PyArray_API[226]) +#define NpyIter_Copy \ + (*(NpyIter * (*)(NpyIter *)) \ + PyArray_API[227]) +#define NpyIter_Deallocate \ + (*(int (*)(NpyIter *)) \ + PyArray_API[228]) +#define NpyIter_HasDelayedBufAlloc \ + (*(npy_bool (*)(NpyIter *)) \ + PyArray_API[229]) +#define NpyIter_HasExternalLoop \ + (*(npy_bool (*)(NpyIter *)) \ + PyArray_API[230]) +#define NpyIter_EnableExternalLoop \ + (*(int (*)(NpyIter *)) \ + PyArray_API[231]) +#define NpyIter_GetInnerStrideArray \ + (*(npy_intp * (*)(NpyIter *)) \ + PyArray_API[232]) +#define NpyIter_GetInnerLoopSizePtr \ + (*(npy_intp * (*)(NpyIter *)) \ + PyArray_API[233]) +#define NpyIter_Reset \ + (*(int (*)(NpyIter *, char **)) \ + PyArray_API[234]) +#define NpyIter_ResetBasePointers \ + (*(int (*)(NpyIter *, char **, char **)) \ + PyArray_API[235]) +#define NpyIter_ResetToIterIndexRange \ + (*(int (*)(NpyIter *, npy_intp, npy_intp, char **)) \ + PyArray_API[236]) +#define NpyIter_GetNDim \ + (*(int (*)(NpyIter *)) \ + PyArray_API[237]) +#define NpyIter_GetNOp \ + (*(int (*)(NpyIter *)) \ + PyArray_API[238]) +#define NpyIter_GetIterNext \ + (*(NpyIter_IterNextFunc * (*)(NpyIter *, char **)) \ + PyArray_API[239]) +#define NpyIter_GetIterSize \ + (*(npy_intp (*)(NpyIter *)) \ + PyArray_API[240]) +#define NpyIter_GetIterIndexRange \ + (*(void (*)(NpyIter *, npy_intp *, npy_intp *)) \ + PyArray_API[241]) +#define NpyIter_GetIterIndex \ + (*(npy_intp (*)(NpyIter *)) \ + PyArray_API[242]) +#define NpyIter_GotoIterIndex \ + (*(int (*)(NpyIter *, npy_intp)) \ + PyArray_API[243]) +#define NpyIter_HasMultiIndex \ + (*(npy_bool (*)(NpyIter *)) \ + PyArray_API[244]) +#define NpyIter_GetShape \ + (*(int (*)(NpyIter *, npy_intp *)) \ + PyArray_API[245]) +#define NpyIter_GetGetMultiIndex \ + (*(NpyIter_GetMultiIndexFunc * (*)(NpyIter *, char **)) \ + PyArray_API[246]) +#define NpyIter_GotoMultiIndex \ + (*(int (*)(NpyIter *, npy_intp const *)) \ + PyArray_API[247]) +#define NpyIter_RemoveMultiIndex \ + (*(int (*)(NpyIter *)) \ + PyArray_API[248]) +#define NpyIter_HasIndex \ + (*(npy_bool (*)(NpyIter *)) \ + PyArray_API[249]) +#define NpyIter_IsBuffered \ + (*(npy_bool (*)(NpyIter *)) \ + PyArray_API[250]) +#define NpyIter_IsGrowInner \ + (*(npy_bool (*)(NpyIter *)) \ + PyArray_API[251]) +#define NpyIter_GetBufferSize \ + (*(npy_intp (*)(NpyIter *)) \ + PyArray_API[252]) +#define NpyIter_GetIndexPtr \ + (*(npy_intp * (*)(NpyIter *)) \ + PyArray_API[253]) +#define NpyIter_GotoIndex \ + (*(int (*)(NpyIter *, npy_intp)) \ + PyArray_API[254]) +#define NpyIter_GetDataPtrArray \ + (*(char ** (*)(NpyIter *)) \ + PyArray_API[255]) +#define NpyIter_GetDescrArray \ + (*(PyArray_Descr ** (*)(NpyIter *)) \ + PyArray_API[256]) +#define NpyIter_GetOperandArray \ + (*(PyArrayObject ** (*)(NpyIter *)) \ + PyArray_API[257]) +#define NpyIter_GetIterView \ + (*(PyArrayObject * (*)(NpyIter *, npy_intp)) \ + PyArray_API[258]) +#define NpyIter_GetReadFlags \ + (*(void (*)(NpyIter *, char *)) \ + PyArray_API[259]) +#define NpyIter_GetWriteFlags \ + (*(void (*)(NpyIter *, char *)) \ + PyArray_API[260]) +#define NpyIter_DebugPrint \ + (*(void (*)(NpyIter *)) \ + PyArray_API[261]) +#define NpyIter_IterationNeedsAPI \ + (*(npy_bool (*)(NpyIter *)) \ + PyArray_API[262]) +#define NpyIter_GetInnerFixedStrideArray \ + (*(void (*)(NpyIter *, npy_intp *)) \ + PyArray_API[263]) +#define NpyIter_RemoveAxis \ + (*(int (*)(NpyIter *, int)) \ + PyArray_API[264]) +#define NpyIter_GetAxisStrideArray \ + (*(npy_intp * (*)(NpyIter *, int)) \ + PyArray_API[265]) +#define NpyIter_RequiresBuffering \ + (*(npy_bool (*)(NpyIter *)) \ + PyArray_API[266]) +#define NpyIter_GetInitialDataPtrArray \ + (*(char ** (*)(NpyIter *)) \ + PyArray_API[267]) +#define NpyIter_CreateCompatibleStrides \ + (*(int (*)(NpyIter *, npy_intp, npy_intp *)) \ + PyArray_API[268]) +#define PyArray_CastingConverter \ + (*(int (*)(PyObject *, NPY_CASTING *)) \ + PyArray_API[269]) +#define PyArray_CountNonzero \ + (*(npy_intp (*)(PyArrayObject *)) \ + PyArray_API[270]) +#define PyArray_PromoteTypes \ + (*(PyArray_Descr * (*)(PyArray_Descr *, PyArray_Descr *)) \ + PyArray_API[271]) +#define PyArray_MinScalarType \ + (*(PyArray_Descr * (*)(PyArrayObject *)) \ + PyArray_API[272]) +#define PyArray_ResultType \ + (*(PyArray_Descr * (*)(npy_intp, PyArrayObject *arrs[], npy_intp, PyArray_Descr *descrs[])) \ + PyArray_API[273]) +#define PyArray_CanCastArrayTo \ + (*(npy_bool (*)(PyArrayObject *, PyArray_Descr *, NPY_CASTING)) \ + PyArray_API[274]) +#define PyArray_CanCastTypeTo \ + (*(npy_bool (*)(PyArray_Descr *, PyArray_Descr *, NPY_CASTING)) \ + PyArray_API[275]) +#define PyArray_EinsteinSum \ + (*(PyArrayObject * (*)(char *, npy_intp, PyArrayObject **, PyArray_Descr *, NPY_ORDER, NPY_CASTING, PyArrayObject *)) \ + PyArray_API[276]) +#define PyArray_NewLikeArray \ + (*(PyObject * (*)(PyArrayObject *, NPY_ORDER, PyArray_Descr *, int)) \ + PyArray_API[277]) +#define PyArray_ConvertClipmodeSequence \ + (*(int (*)(PyObject *, NPY_CLIPMODE *, int)) \ + PyArray_API[279]) +#define PyArray_MatrixProduct2 \ + (*(PyObject * (*)(PyObject *, PyObject *, PyArrayObject*)) \ + PyArray_API[280]) +#define NpyIter_IsFirstVisit \ + (*(npy_bool (*)(NpyIter *, int)) \ + PyArray_API[281]) +#define PyArray_SetBaseObject \ + (*(int (*)(PyArrayObject *, PyObject *)) \ + PyArray_API[282]) +#define PyArray_CreateSortedStridePerm \ + (*(void (*)(int, npy_intp const *, npy_stride_sort_item *)) \ + PyArray_API[283]) +#define PyArray_RemoveAxesInPlace \ + (*(void (*)(PyArrayObject *, const npy_bool *)) \ + PyArray_API[284]) +#define PyArray_DebugPrint \ + (*(void (*)(PyArrayObject *)) \ + PyArray_API[285]) +#define PyArray_FailUnlessWriteable \ + (*(int (*)(PyArrayObject *, const char *)) \ + PyArray_API[286]) +#define PyArray_SetUpdateIfCopyBase \ + (*(int (*)(PyArrayObject *, PyArrayObject *)) \ + PyArray_API[287]) +#define PyDataMem_NEW \ + (*(void * (*)(size_t)) \ + PyArray_API[288]) +#define PyDataMem_FREE \ + (*(void (*)(void *)) \ + PyArray_API[289]) +#define PyDataMem_RENEW \ + (*(void * (*)(void *, size_t)) \ + PyArray_API[290]) +#define NPY_DEFAULT_ASSIGN_CASTING (*(NPY_CASTING *)PyArray_API[292]) +#define PyArray_Partition \ + (*(int (*)(PyArrayObject *, PyArrayObject *, int, NPY_SELECTKIND)) \ + PyArray_API[296]) +#define PyArray_ArgPartition \ + (*(PyObject * (*)(PyArrayObject *, PyArrayObject *, int, NPY_SELECTKIND)) \ + PyArray_API[297]) +#define PyArray_SelectkindConverter \ + (*(int (*)(PyObject *, NPY_SELECTKIND *)) \ + PyArray_API[298]) +#define PyDataMem_NEW_ZEROED \ + (*(void * (*)(size_t, size_t)) \ + PyArray_API[299]) +#define PyArray_CheckAnyScalarExact \ + (*(int (*)(PyObject *)) \ + PyArray_API[300]) +#define PyArray_ResolveWritebackIfCopy \ + (*(int (*)(PyArrayObject *)) \ + PyArray_API[302]) +#define PyArray_SetWritebackIfCopyBase \ + (*(int (*)(PyArrayObject *, PyArrayObject *)) \ + PyArray_API[303]) + +#if NPY_FEATURE_VERSION >= NPY_1_22_API_VERSION +#define PyDataMem_SetHandler \ + (*(PyObject * (*)(PyObject *)) \ + PyArray_API[304]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_1_22_API_VERSION +#define PyDataMem_GetHandler \ + (*(PyObject * (*)(void)) \ + PyArray_API[305]) +#endif +#define PyDataMem_DefaultHandler (*(PyObject* *)PyArray_API[306]) + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define NpyDatetime_ConvertDatetime64ToDatetimeStruct \ + (*(int (*)(PyArray_DatetimeMetaData *, npy_datetime, npy_datetimestruct *)) \ + PyArray_API[307]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define NpyDatetime_ConvertDatetimeStructToDatetime64 \ + (*(int (*)(PyArray_DatetimeMetaData *, const npy_datetimestruct *, npy_datetime *)) \ + PyArray_API[308]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define NpyDatetime_ConvertPyDateTimeToDatetimeStruct \ + (*(int (*)(PyObject *, npy_datetimestruct *, NPY_DATETIMEUNIT *, int)) \ + PyArray_API[309]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define NpyDatetime_GetDatetimeISO8601StrLen \ + (*(int (*)(int, NPY_DATETIMEUNIT)) \ + PyArray_API[310]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define NpyDatetime_MakeISO8601Datetime \ + (*(int (*)(npy_datetimestruct *, char *, npy_intp, int, int, NPY_DATETIMEUNIT, int, NPY_CASTING)) \ + PyArray_API[311]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define NpyDatetime_ParseISO8601Datetime \ + (*(int (*)(char const *, Py_ssize_t, NPY_DATETIMEUNIT, NPY_CASTING, npy_datetimestruct *, NPY_DATETIMEUNIT *, npy_bool *)) \ + PyArray_API[312]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define NpyString_load \ + (*(int (*)(npy_string_allocator *, const npy_packed_static_string *, npy_static_string *)) \ + PyArray_API[313]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define NpyString_pack \ + (*(int (*)(npy_string_allocator *, npy_packed_static_string *, const char *, size_t)) \ + PyArray_API[314]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define NpyString_pack_null \ + (*(int (*)(npy_string_allocator *, npy_packed_static_string *)) \ + PyArray_API[315]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define NpyString_acquire_allocator \ + (*(npy_string_allocator * (*)(const PyArray_StringDTypeObject *)) \ + PyArray_API[316]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define NpyString_acquire_allocators \ + (*(void (*)(size_t, PyArray_Descr *const descrs[], npy_string_allocator *allocators[])) \ + PyArray_API[317]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define NpyString_release_allocator \ + (*(void (*)(npy_string_allocator *)) \ + PyArray_API[318]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define NpyString_release_allocators \ + (*(void (*)(size_t, npy_string_allocator *allocators[])) \ + PyArray_API[319]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define PyArray_GetDefaultDescr \ + (*(PyArray_Descr * (*)(PyArray_DTypeMeta *)) \ + PyArray_API[361]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define PyArrayInitDTypeMeta_FromSpec \ + (*(int (*)(PyArray_DTypeMeta *, PyArrayDTypeMeta_Spec *)) \ + PyArray_API[362]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define PyArray_CommonDType \ + (*(PyArray_DTypeMeta * (*)(PyArray_DTypeMeta *, PyArray_DTypeMeta *)) \ + PyArray_API[363]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define PyArray_PromoteDTypeSequence \ + (*(PyArray_DTypeMeta * (*)(npy_intp, PyArray_DTypeMeta **)) \ + PyArray_API[364]) +#endif +#define _PyDataType_GetArrFuncs \ + (*(PyArray_ArrFuncs * (*)(const PyArray_Descr *)) \ + PyArray_API[365]) + +/* + * The DType classes are inconvenient for the Python generation so exposed + * manually in the header below (may be moved). + */ +#include "numpy/_public_dtype_api_table.h" + +#if !defined(NO_IMPORT_ARRAY) && !defined(NO_IMPORT) +static int +_import_array(void) +{ + int st; + PyObject *numpy = PyImport_ImportModule("numpy._core._multiarray_umath"); + PyObject *c_api; + if (numpy == NULL && PyErr_ExceptionMatches(PyExc_ModuleNotFoundError)) { + PyErr_Clear(); + numpy = PyImport_ImportModule("numpy.core._multiarray_umath"); + } + + if (numpy == NULL) { + return -1; + } + + c_api = PyObject_GetAttrString(numpy, "_ARRAY_API"); + Py_DECREF(numpy); + if (c_api == NULL) { + return -1; + } + + if (!PyCapsule_CheckExact(c_api)) { + PyErr_SetString(PyExc_RuntimeError, "_ARRAY_API is not PyCapsule object"); + Py_DECREF(c_api); + return -1; + } + PyArray_API = (void **)PyCapsule_GetPointer(c_api, NULL); + Py_DECREF(c_api); + if (PyArray_API == NULL) { + PyErr_SetString(PyExc_RuntimeError, "_ARRAY_API is NULL pointer"); + return -1; + } + + /* + * On exceedingly few platforms these sizes may not match, in which case + * We do not support older NumPy versions at all. + */ + if (sizeof(Py_ssize_t) != sizeof(Py_intptr_t) && + PyArray_RUNTIME_VERSION < NPY_2_0_API_VERSION) { + PyErr_Format(PyExc_RuntimeError, + "module compiled against NumPy 2.0 but running on NumPy 1.x. " + "Unfortunately, this is not supported on niche platforms where " + "`sizeof(size_t) != sizeof(inptr_t)`."); + } + /* + * Perform runtime check of C API version. As of now NumPy 2.0 is ABI + * backwards compatible (in the exposed feature subset!) for all practical + * purposes. + */ + if (NPY_VERSION < PyArray_GetNDArrayCVersion()) { + PyErr_Format(PyExc_RuntimeError, "module compiled against "\ + "ABI version 0x%x but this version of numpy is 0x%x", \ + (int) NPY_VERSION, (int) PyArray_GetNDArrayCVersion()); + return -1; + } + PyArray_RUNTIME_VERSION = (int)PyArray_GetNDArrayCFeatureVersion(); + if (NPY_FEATURE_VERSION > PyArray_RUNTIME_VERSION) { + PyErr_Format(PyExc_RuntimeError, + "module was compiled against NumPy C-API version 0x%x " + "(NumPy " NPY_FEATURE_VERSION_STRING ") " + "but the running NumPy has C-API version 0x%x. " + "Check the section C-API incompatibility at the " + "Troubleshooting ImportError section at " + "https://numpy.org/devdocs/user/troubleshooting-importerror.html" + "#c-api-incompatibility " + "for indications on how to solve this problem.", + (int)NPY_FEATURE_VERSION, PyArray_RUNTIME_VERSION); + return -1; + } + + /* + * Perform runtime check of endianness and check it matches the one set by + * the headers (npy_endian.h) as a safeguard + */ + st = PyArray_GetEndianness(); + if (st == NPY_CPU_UNKNOWN_ENDIAN) { + PyErr_SetString(PyExc_RuntimeError, + "FATAL: module compiled as unknown endian"); + return -1; + } +#if NPY_BYTE_ORDER == NPY_BIG_ENDIAN + if (st != NPY_CPU_BIG) { + PyErr_SetString(PyExc_RuntimeError, + "FATAL: module compiled as big endian, but " + "detected different endianness at runtime"); + return -1; + } +#elif NPY_BYTE_ORDER == NPY_LITTLE_ENDIAN + if (st != NPY_CPU_LITTLE) { + PyErr_SetString(PyExc_RuntimeError, + "FATAL: module compiled as little endian, but " + "detected different endianness at runtime"); + return -1; + } +#endif + + return 0; +} + +#if (SWIG_VERSION < 0x040400) +#define _RETURN_VALUE NULL +#else +#define _RETURN_VALUE 0 +#endif + +#define import_array() { \ + if (_import_array() < 0) { \ + PyErr_Print(); \ + PyErr_SetString( \ + PyExc_ImportError, \ + "numpy._core.multiarray failed to import" \ + ); \ + return _RETURN_VALUE; \ + } \ +} + +#define import_array1(ret) { \ + if (_import_array() < 0) { \ + PyErr_Print(); \ + PyErr_SetString( \ + PyExc_ImportError, \ + "numpy._core.multiarray failed to import" \ + ); \ + return ret; \ + } \ +} + +#define import_array2(msg, ret) { \ + if (_import_array() < 0) { \ + PyErr_Print(); \ + PyErr_SetString(PyExc_ImportError, msg); \ + return ret; \ + } \ +} + +#endif + +#endif diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/__ufunc_api.c b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/__ufunc_api.c new file mode 100644 index 0000000000000000000000000000000000000000..d18aa72d1c490c037d766700658d854134f96b65 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/__ufunc_api.c @@ -0,0 +1,55 @@ + +/* These pointers will be stored in the C-object for use in other + extension modules +*/ + +void *PyUFunc_API[] = { + (void *) &PyUFunc_Type, + (void *) PyUFunc_FromFuncAndData, + (void *) PyUFunc_RegisterLoopForType, + NULL, + (void *) PyUFunc_f_f_As_d_d, + (void *) PyUFunc_d_d, + (void *) PyUFunc_f_f, + (void *) PyUFunc_g_g, + (void *) PyUFunc_F_F_As_D_D, + (void *) PyUFunc_F_F, + (void *) PyUFunc_D_D, + (void *) PyUFunc_G_G, + (void *) PyUFunc_O_O, + (void *) PyUFunc_ff_f_As_dd_d, + (void *) PyUFunc_ff_f, + (void *) PyUFunc_dd_d, + (void *) PyUFunc_gg_g, + (void *) PyUFunc_FF_F_As_DD_D, + (void *) PyUFunc_DD_D, + (void *) PyUFunc_FF_F, + (void *) PyUFunc_GG_G, + (void *) PyUFunc_OO_O, + (void *) PyUFunc_O_O_method, + (void *) PyUFunc_OO_O_method, + (void *) PyUFunc_On_Om, + NULL, + NULL, + (void *) PyUFunc_clearfperr, + (void *) PyUFunc_getfperr, + NULL, + (void *) PyUFunc_ReplaceLoopBySignature, + (void *) PyUFunc_FromFuncAndDataAndSignature, + NULL, + (void *) PyUFunc_e_e, + (void *) PyUFunc_e_e_As_f_f, + (void *) PyUFunc_e_e_As_d_d, + (void *) PyUFunc_ee_e, + (void *) PyUFunc_ee_e_As_ff_f, + (void *) PyUFunc_ee_e_As_dd_d, + (void *) PyUFunc_DefaultTypeResolver, + (void *) PyUFunc_ValidateCasting, + (void *) PyUFunc_RegisterLoopForDescr, + (void *) PyUFunc_FromFuncAndDataAndSignatureAndIdentity, + (void *) PyUFunc_AddLoopFromSpec, + (void *) PyUFunc_AddPromoter, + (void *) PyUFunc_AddWrappingLoop, + (void *) PyUFunc_GiveFloatingpointErrors, + (void *) PyUFunc_AddLoopsFromSpecs +}; diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/__ufunc_api.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/__ufunc_api.h new file mode 100644 index 0000000000000000000000000000000000000000..5c98f0155d24206596caad3f45509c650ec101dc --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/__ufunc_api.h @@ -0,0 +1,349 @@ + +#ifdef _UMATHMODULE + +extern NPY_NO_EXPORT PyTypeObject PyUFunc_Type; + +extern NPY_NO_EXPORT PyTypeObject PyUFunc_Type; + +NPY_NO_EXPORT PyObject * PyUFunc_FromFuncAndData \ + (PyUFuncGenericFunction *, void *const *, const char *, int, int, int, int, const char *, const char *, int); +NPY_NO_EXPORT int PyUFunc_RegisterLoopForType \ + (PyUFuncObject *, int, PyUFuncGenericFunction, const int *, void *); +NPY_NO_EXPORT void PyUFunc_f_f_As_d_d \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_d_d \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_f_f \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_g_g \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_F_F_As_D_D \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_F_F \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_D_D \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_G_G \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_O_O \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_ff_f_As_dd_d \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_ff_f \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_dd_d \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_gg_g \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_FF_F_As_DD_D \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_DD_D \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_FF_F \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_GG_G \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_OO_O \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_O_O_method \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_OO_O_method \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_On_Om \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_clearfperr \ + (void); +NPY_NO_EXPORT int PyUFunc_getfperr \ + (void); +NPY_NO_EXPORT int PyUFunc_ReplaceLoopBySignature \ + (PyUFuncObject *, PyUFuncGenericFunction, const int *, PyUFuncGenericFunction *); +NPY_NO_EXPORT PyObject * PyUFunc_FromFuncAndDataAndSignature \ + (PyUFuncGenericFunction *, void *const *, const char *, int, int, int, int, const char *, const char *, int, const char *); +NPY_NO_EXPORT void PyUFunc_e_e \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_e_e_As_f_f \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_e_e_As_d_d \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_ee_e \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_ee_e_As_ff_f \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT void PyUFunc_ee_e_As_dd_d \ + (char **, npy_intp const *, npy_intp const *, void *); +NPY_NO_EXPORT int PyUFunc_DefaultTypeResolver \ + (PyUFuncObject *, NPY_CASTING, PyArrayObject **, PyObject *, PyArray_Descr **); +NPY_NO_EXPORT int PyUFunc_ValidateCasting \ + (PyUFuncObject *, NPY_CASTING, PyArrayObject **, PyArray_Descr *const *); +NPY_NO_EXPORT int PyUFunc_RegisterLoopForDescr \ + (PyUFuncObject *, PyArray_Descr *, PyUFuncGenericFunction, PyArray_Descr **, void *); +NPY_NO_EXPORT PyObject * PyUFunc_FromFuncAndDataAndSignatureAndIdentity \ + (PyUFuncGenericFunction *, void *const *, const char *, int, int, int, int, const char *, const char *, const int, const char *, PyObject *); +NPY_NO_EXPORT int PyUFunc_AddLoopFromSpec \ + (PyObject *, PyArrayMethod_Spec *); +NPY_NO_EXPORT int PyUFunc_AddPromoter \ + (PyObject *, PyObject *, PyObject *); +NPY_NO_EXPORT int PyUFunc_AddWrappingLoop \ + (PyObject *, PyArray_DTypeMeta *new_dtypes[], PyArray_DTypeMeta *wrapped_dtypes[], PyArrayMethod_TranslateGivenDescriptors *, PyArrayMethod_TranslateLoopDescriptors *); +NPY_NO_EXPORT int PyUFunc_GiveFloatingpointErrors \ + (const char *, int); +NPY_NO_EXPORT int PyUFunc_AddLoopsFromSpecs \ + (PyUFunc_LoopSlot *); + +#else + +#if defined(PY_UFUNC_UNIQUE_SYMBOL) +#define PyUFunc_API PY_UFUNC_UNIQUE_SYMBOL +#endif + +/* By default do not export API in an .so (was never the case on windows) */ +#ifndef NPY_API_SYMBOL_ATTRIBUTE + #define NPY_API_SYMBOL_ATTRIBUTE NPY_VISIBILITY_HIDDEN +#endif + +#if defined(NO_IMPORT) || defined(NO_IMPORT_UFUNC) +extern NPY_API_SYMBOL_ATTRIBUTE void **PyUFunc_API; +#else +#if defined(PY_UFUNC_UNIQUE_SYMBOL) +NPY_API_SYMBOL_ATTRIBUTE void **PyUFunc_API; +#else +static void **PyUFunc_API=NULL; +#endif +#endif + +#define PyUFunc_Type (*(PyTypeObject *)PyUFunc_API[0]) +#define PyUFunc_FromFuncAndData \ + (*(PyObject * (*)(PyUFuncGenericFunction *, void *const *, const char *, int, int, int, int, const char *, const char *, int)) \ + PyUFunc_API[1]) +#define PyUFunc_RegisterLoopForType \ + (*(int (*)(PyUFuncObject *, int, PyUFuncGenericFunction, const int *, void *)) \ + PyUFunc_API[2]) +#define PyUFunc_f_f_As_d_d \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[4]) +#define PyUFunc_d_d \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[5]) +#define PyUFunc_f_f \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[6]) +#define PyUFunc_g_g \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[7]) +#define PyUFunc_F_F_As_D_D \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[8]) +#define PyUFunc_F_F \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[9]) +#define PyUFunc_D_D \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[10]) +#define PyUFunc_G_G \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[11]) +#define PyUFunc_O_O \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[12]) +#define PyUFunc_ff_f_As_dd_d \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[13]) +#define PyUFunc_ff_f \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[14]) +#define PyUFunc_dd_d \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[15]) +#define PyUFunc_gg_g \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[16]) +#define PyUFunc_FF_F_As_DD_D \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[17]) +#define PyUFunc_DD_D \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[18]) +#define PyUFunc_FF_F \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[19]) +#define PyUFunc_GG_G \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[20]) +#define PyUFunc_OO_O \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[21]) +#define PyUFunc_O_O_method \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[22]) +#define PyUFunc_OO_O_method \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[23]) +#define PyUFunc_On_Om \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[24]) +#define PyUFunc_clearfperr \ + (*(void (*)(void)) \ + PyUFunc_API[27]) +#define PyUFunc_getfperr \ + (*(int (*)(void)) \ + PyUFunc_API[28]) +#define PyUFunc_ReplaceLoopBySignature \ + (*(int (*)(PyUFuncObject *, PyUFuncGenericFunction, const int *, PyUFuncGenericFunction *)) \ + PyUFunc_API[30]) +#define PyUFunc_FromFuncAndDataAndSignature \ + (*(PyObject * (*)(PyUFuncGenericFunction *, void *const *, const char *, int, int, int, int, const char *, const char *, int, const char *)) \ + PyUFunc_API[31]) +#define PyUFunc_e_e \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[33]) +#define PyUFunc_e_e_As_f_f \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[34]) +#define PyUFunc_e_e_As_d_d \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[35]) +#define PyUFunc_ee_e \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[36]) +#define PyUFunc_ee_e_As_ff_f \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[37]) +#define PyUFunc_ee_e_As_dd_d \ + (*(void (*)(char **, npy_intp const *, npy_intp const *, void *)) \ + PyUFunc_API[38]) +#define PyUFunc_DefaultTypeResolver \ + (*(int (*)(PyUFuncObject *, NPY_CASTING, PyArrayObject **, PyObject *, PyArray_Descr **)) \ + PyUFunc_API[39]) +#define PyUFunc_ValidateCasting \ + (*(int (*)(PyUFuncObject *, NPY_CASTING, PyArrayObject **, PyArray_Descr *const *)) \ + PyUFunc_API[40]) +#define PyUFunc_RegisterLoopForDescr \ + (*(int (*)(PyUFuncObject *, PyArray_Descr *, PyUFuncGenericFunction, PyArray_Descr **, void *)) \ + PyUFunc_API[41]) + +#if NPY_FEATURE_VERSION >= NPY_1_16_API_VERSION +#define PyUFunc_FromFuncAndDataAndSignatureAndIdentity \ + (*(PyObject * (*)(PyUFuncGenericFunction *, void *const *, const char *, int, int, int, int, const char *, const char *, const int, const char *, PyObject *)) \ + PyUFunc_API[42]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define PyUFunc_AddLoopFromSpec \ + (*(int (*)(PyObject *, PyArrayMethod_Spec *)) \ + PyUFunc_API[43]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define PyUFunc_AddPromoter \ + (*(int (*)(PyObject *, PyObject *, PyObject *)) \ + PyUFunc_API[44]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define PyUFunc_AddWrappingLoop \ + (*(int (*)(PyObject *, PyArray_DTypeMeta *new_dtypes[], PyArray_DTypeMeta *wrapped_dtypes[], PyArrayMethod_TranslateGivenDescriptors *, PyArrayMethod_TranslateLoopDescriptors *)) \ + PyUFunc_API[45]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +#define PyUFunc_GiveFloatingpointErrors \ + (*(int (*)(const char *, int)) \ + PyUFunc_API[46]) +#endif + +#if NPY_FEATURE_VERSION >= NPY_2_4_API_VERSION +#define PyUFunc_AddLoopsFromSpecs \ + (*(int (*)(PyUFunc_LoopSlot *)) \ + PyUFunc_API[47]) +#endif + +static inline int +_import_umath(void) +{ + PyObject *c_api; + PyObject *numpy = PyImport_ImportModule("numpy._core._multiarray_umath"); + if (numpy == NULL && PyErr_ExceptionMatches(PyExc_ModuleNotFoundError)) { + PyErr_Clear(); + numpy = PyImport_ImportModule("numpy.core._multiarray_umath"); + } + + if (numpy == NULL) { + PyErr_SetString(PyExc_ImportError, + "_multiarray_umath failed to import"); + return -1; + } + + c_api = PyObject_GetAttrString(numpy, "_UFUNC_API"); + Py_DECREF(numpy); + if (c_api == NULL) { + PyErr_SetString(PyExc_AttributeError, "_UFUNC_API not found"); + return -1; + } + + if (!PyCapsule_CheckExact(c_api)) { + PyErr_SetString(PyExc_RuntimeError, "_UFUNC_API is not PyCapsule object"); + Py_DECREF(c_api); + return -1; + } + PyUFunc_API = (void **)PyCapsule_GetPointer(c_api, NULL); + Py_DECREF(c_api); + if (PyUFunc_API == NULL) { + PyErr_SetString(PyExc_RuntimeError, "_UFUNC_API is NULL pointer"); + return -1; + } + return 0; +} + +#define import_umath() \ + do {\ + UFUNC_NOFPE\ + if (_import_umath() < 0) {\ + PyErr_Print();\ + PyErr_SetString(PyExc_ImportError,\ + "numpy._core.umath failed to import");\ + return NULL;\ + }\ + } while(0) + +#define import_umath1(ret) \ + do {\ + UFUNC_NOFPE\ + if (_import_umath() < 0) {\ + PyErr_Print();\ + PyErr_SetString(PyExc_ImportError,\ + "numpy._core.umath failed to import");\ + return ret;\ + }\ + } while(0) + +#define import_umath2(ret, msg) \ + do {\ + UFUNC_NOFPE\ + if (_import_umath() < 0) {\ + PyErr_Print();\ + PyErr_SetString(PyExc_ImportError, msg);\ + return ret;\ + }\ + } while(0) + +#define import_ufunc() \ + do {\ + UFUNC_NOFPE\ + if (_import_umath() < 0) {\ + PyErr_Print();\ + PyErr_SetString(PyExc_ImportError,\ + "numpy._core.umath failed to import");\ + }\ + } while(0) + + +static inline int +PyUFunc_ImportUFuncAPI() +{ + if (NPY_UNLIKELY(PyUFunc_API == NULL)) { + import_umath1(-1); + } + return 0; +} + +#endif diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/_neighborhood_iterator_imp.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/_neighborhood_iterator_imp.h new file mode 100644 index 0000000000000000000000000000000000000000..b365cb50854f381f1a399b7aea2adab846490366 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/_neighborhood_iterator_imp.h @@ -0,0 +1,90 @@ +#ifndef NUMPY_CORE_INCLUDE_NUMPY__NEIGHBORHOOD_IMP_H_ +#error You should not include this header directly +#endif +/* + * Private API (here for inline) + */ +static inline int +_PyArrayNeighborhoodIter_IncrCoord(PyArrayNeighborhoodIterObject* iter); + +/* + * Update to next item of the iterator + * + * Note: this simply increment the coordinates vector, last dimension + * incremented first , i.e, for dimension 3 + * ... + * -1, -1, -1 + * -1, -1, 0 + * -1, -1, 1 + * .... + * -1, 0, -1 + * -1, 0, 0 + * .... + * 0, -1, -1 + * 0, -1, 0 + * .... + */ +#define _UPDATE_COORD_ITER(c) \ + wb = iter->coordinates[c] < iter->bounds[c][1]; \ + if (wb) { \ + iter->coordinates[c] += 1; \ + return 0; \ + } \ + else { \ + iter->coordinates[c] = iter->bounds[c][0]; \ + } + +static inline int +_PyArrayNeighborhoodIter_IncrCoord(PyArrayNeighborhoodIterObject* iter) +{ + npy_intp i, wb; + + for (i = iter->nd - 1; i >= 0; --i) { + _UPDATE_COORD_ITER(i) + } + + return 0; +} + +/* + * Version optimized for 2d arrays, manual loop unrolling + */ +static inline int +_PyArrayNeighborhoodIter_IncrCoord2D(PyArrayNeighborhoodIterObject* iter) +{ + npy_intp wb; + + _UPDATE_COORD_ITER(1) + _UPDATE_COORD_ITER(0) + + return 0; +} +#undef _UPDATE_COORD_ITER + +/* + * Advance to the next neighbour + */ +static inline int +PyArrayNeighborhoodIter_Next(PyArrayNeighborhoodIterObject* iter) +{ + _PyArrayNeighborhoodIter_IncrCoord (iter); + iter->dataptr = iter->translate((PyArrayIterObject*)iter, iter->coordinates); + + return 0; +} + +/* + * Reset functions + */ +static inline int +PyArrayNeighborhoodIter_Reset(PyArrayNeighborhoodIterObject* iter) +{ + npy_intp i; + + for (i = 0; i < iter->nd; ++i) { + iter->coordinates[i] = iter->bounds[i][0]; + } + iter->dataptr = iter->translate((PyArrayIterObject*)iter, iter->coordinates); + + return 0; +} diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/_numpyconfig.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/_numpyconfig.h new file mode 100644 index 0000000000000000000000000000000000000000..0854027f38b9576e29be4ee5e0bb42c9bf2ec7a8 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/_numpyconfig.h @@ -0,0 +1,33 @@ +/* #undef NPY_HAVE_ENDIAN_H */ + +#define NPY_SIZEOF_SHORT 2 +#define NPY_SIZEOF_INT 4 +#define NPY_SIZEOF_LONG 8 +#define NPY_SIZEOF_FLOAT 4 +#define NPY_SIZEOF_COMPLEX_FLOAT 8 +#define NPY_SIZEOF_DOUBLE 8 +#define NPY_SIZEOF_COMPLEX_DOUBLE 16 +#define NPY_SIZEOF_LONGDOUBLE 8 +#define NPY_SIZEOF_COMPLEX_LONGDOUBLE 16 +#define NPY_SIZEOF_PY_INTPTR_T 8 +#define NPY_SIZEOF_INTP 8 +#define NPY_SIZEOF_UINTP 8 +#define NPY_SIZEOF_WCHAR_T 4 +#define NPY_SIZEOF_OFF_T 8 +#define NPY_SIZEOF_PY_LONG_LONG 8 +#define NPY_SIZEOF_LONGLONG 8 + +/* + * Defined to 1 or 0. Note that Pyodide hardcodes NPY_NO_SMP (and other defines + * in this header) for better cross-compilation, so don't rename them without a + * good reason. + */ +#define NPY_NO_SMP 0 + +#define NPY_VISIBILITY_HIDDEN __attribute__((visibility("hidden"))) +#define NPY_ABI_VERSION 0x02000000 +#define NPY_API_VERSION 0x00000015 + +#ifndef __STDC_FORMAT_MACROS +#define __STDC_FORMAT_MACROS 1 +#endif diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/_public_dtype_api_table.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/_public_dtype_api_table.h new file mode 100644 index 0000000000000000000000000000000000000000..51f39054062762c39b3df4f689b74060e97036c0 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/_public_dtype_api_table.h @@ -0,0 +1,86 @@ +/* + * Public exposure of the DType Classes. These are tricky to expose + * via the Python API, so they are exposed through this header for now. + * + * These definitions are only relevant for the public API and we reserve + * the slots 320-360 in the API table generation for this (currently). + * + * TODO: This file should be consolidated with the API table generation + * (although not sure the current generation is worth preserving). + */ +#ifndef NUMPY_CORE_INCLUDE_NUMPY__PUBLIC_DTYPE_API_TABLE_H_ +#define NUMPY_CORE_INCLUDE_NUMPY__PUBLIC_DTYPE_API_TABLE_H_ + +#if !(defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD) + +/* All of these require NumPy 2.0 support */ +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION + +/* + * The type of the DType metaclass + */ +#define PyArrayDTypeMeta_Type (*(PyTypeObject *)(PyArray_API + 320)[0]) +/* + * NumPy's builtin DTypes: + */ +#define PyArray_BoolDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[1]) +/* Integers */ +#define PyArray_ByteDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[2]) +#define PyArray_UByteDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[3]) +#define PyArray_ShortDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[4]) +#define PyArray_UShortDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[5]) +#define PyArray_IntDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[6]) +#define PyArray_UIntDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[7]) +#define PyArray_LongDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[8]) +#define PyArray_ULongDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[9]) +#define PyArray_LongLongDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[10]) +#define PyArray_ULongLongDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[11]) +/* Integer aliases */ +#define PyArray_Int8DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[12]) +#define PyArray_UInt8DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[13]) +#define PyArray_Int16DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[14]) +#define PyArray_UInt16DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[15]) +#define PyArray_Int32DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[16]) +#define PyArray_UInt32DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[17]) +#define PyArray_Int64DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[18]) +#define PyArray_UInt64DType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[19]) +#define PyArray_IntpDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[20]) +#define PyArray_UIntpDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[21]) +/* Floats */ +#define PyArray_HalfDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[22]) +#define PyArray_FloatDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[23]) +#define PyArray_DoubleDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[24]) +#define PyArray_LongDoubleDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[25]) +/* Complex */ +#define PyArray_CFloatDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[26]) +#define PyArray_CDoubleDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[27]) +#define PyArray_CLongDoubleDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[28]) +/* String/Bytes */ +#define PyArray_BytesDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[29]) +#define PyArray_UnicodeDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[30]) +/* Datetime/Timedelta */ +#define PyArray_DatetimeDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[31]) +#define PyArray_TimedeltaDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[32]) +/* Object/Void */ +#define PyArray_ObjectDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[33]) +#define PyArray_VoidDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[34]) +/* Python types (used as markers for scalars) */ +#define PyArray_PyLongDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[35]) +#define PyArray_PyFloatDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[36]) +#define PyArray_PyComplexDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[37]) +/* Default integer type */ +#define PyArray_DefaultIntDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[38]) +/* New non-legacy DTypes follow in the order they were added */ +#define PyArray_StringDType (*(PyArray_DTypeMeta *)(PyArray_API + 320)[39]) + +/* NOTE: offset 40 is free */ + +/* Need to start with a larger offset again for the abstract classes: */ +#define PyArray_IntAbstractDType (*(PyArray_DTypeMeta *)PyArray_API[366]) +#define PyArray_FloatAbstractDType (*(PyArray_DTypeMeta *)PyArray_API[367]) +#define PyArray_ComplexAbstractDType (*(PyArray_DTypeMeta *)PyArray_API[368]) + +#endif /* NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION */ + +#endif /* NPY_INTERNAL_BUILD */ +#endif /* NUMPY_CORE_INCLUDE_NUMPY__PUBLIC_DTYPE_API_TABLE_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/arrayobject.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/arrayobject.h new file mode 100644 index 0000000000000000000000000000000000000000..97d93590e401fc878b72281d938170623f01da97 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/arrayobject.h @@ -0,0 +1,7 @@ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_ARRAYOBJECT_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_ARRAYOBJECT_H_ +#define Py_ARRAYOBJECT_H + +#include "ndarrayobject.h" + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_ARRAYOBJECT_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/arrayscalars.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/arrayscalars.h new file mode 100644 index 0000000000000000000000000000000000000000..46bc58cc2a352d71bde2474309a09f6805b267c6 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/arrayscalars.h @@ -0,0 +1,198 @@ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_ARRAYSCALARS_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_ARRAYSCALARS_H_ + +#ifndef _MULTIARRAYMODULE +typedef struct { + PyObject_HEAD + npy_bool obval; +} PyBoolScalarObject; +#endif + + +typedef struct { + PyObject_HEAD + signed char obval; +} PyByteScalarObject; + + +typedef struct { + PyObject_HEAD + short obval; +} PyShortScalarObject; + + +typedef struct { + PyObject_HEAD + int obval; +} PyIntScalarObject; + + +typedef struct { + PyObject_HEAD + long obval; +} PyLongScalarObject; + + +typedef struct { + PyObject_HEAD + npy_longlong obval; +} PyLongLongScalarObject; + + +typedef struct { + PyObject_HEAD + unsigned char obval; +} PyUByteScalarObject; + + +typedef struct { + PyObject_HEAD + unsigned short obval; +} PyUShortScalarObject; + + +typedef struct { + PyObject_HEAD + unsigned int obval; +} PyUIntScalarObject; + + +typedef struct { + PyObject_HEAD + unsigned long obval; +} PyULongScalarObject; + + +typedef struct { + PyObject_HEAD + npy_ulonglong obval; +} PyULongLongScalarObject; + + +typedef struct { + PyObject_HEAD + npy_half obval; +} PyHalfScalarObject; + + +typedef struct { + PyObject_HEAD + float obval; +} PyFloatScalarObject; + + +typedef struct { + PyObject_HEAD + double obval; +} PyDoubleScalarObject; + + +typedef struct { + PyObject_HEAD + npy_longdouble obval; +} PyLongDoubleScalarObject; + + +typedef struct { + PyObject_HEAD + npy_cfloat obval; +} PyCFloatScalarObject; + + +typedef struct { + PyObject_HEAD + npy_cdouble obval; +} PyCDoubleScalarObject; + + +typedef struct { + PyObject_HEAD + npy_clongdouble obval; +} PyCLongDoubleScalarObject; + + +typedef struct { + PyObject_HEAD + PyObject * obval; +} PyObjectScalarObject; + +typedef struct { + PyObject_HEAD + npy_datetime obval; + PyArray_DatetimeMetaData obmeta; +} PyDatetimeScalarObject; + +typedef struct { + PyObject_HEAD + npy_timedelta obval; + PyArray_DatetimeMetaData obmeta; +} PyTimedeltaScalarObject; + + +typedef struct { + PyObject_HEAD + char obval; +} PyScalarObject; + +#define PyStringScalarObject PyBytesObject +#ifndef Py_LIMITED_API +typedef struct { + /* note that the PyObject_HEAD macro lives right here */ + PyUnicodeObject base; + Py_UCS4 *obval; + #if NPY_FEATURE_VERSION >= NPY_1_20_API_VERSION + char *buffer_fmt; + #endif +} PyUnicodeScalarObject; +#endif + + +typedef struct { + PyObject_VAR_HEAD + char *obval; +#if defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD + /* Internally use the subclass to allow accessing names/fields */ + _PyArray_LegacyDescr *descr; +#else + PyArray_Descr *descr; +#endif + int flags; + PyObject *base; + #if NPY_FEATURE_VERSION >= NPY_1_20_API_VERSION + void *_buffer_info; /* private buffer info, tagged to allow warning */ + #endif +} PyVoidScalarObject; + +/* Macros + PyScalarObject + PyArrType_Type + are defined in ndarrayobject.h +*/ + +#define PyArrayScalar_False ((PyObject *)(&(_PyArrayScalar_BoolValues[0]))) +#define PyArrayScalar_True ((PyObject *)(&(_PyArrayScalar_BoolValues[1]))) +#define PyArrayScalar_FromLong(i) \ + ((PyObject *)(&(_PyArrayScalar_BoolValues[((i)!=0)]))) +#define PyArrayScalar_RETURN_BOOL_FROM_LONG(i) do { \ + PyObject *obj = PyArrayScalar_FromLong(i); \ + Py_INCREF(obj); \ + return obj; \ +} while (0) +#define PyArrayScalar_RETURN_FALSE \ + return Py_INCREF(PyArrayScalar_False), \ + PyArrayScalar_False +#define PyArrayScalar_RETURN_TRUE \ + return Py_INCREF(PyArrayScalar_True), \ + PyArrayScalar_True + +#define PyArrayScalar_New(cls) \ + Py##cls##ArrType_Type.tp_alloc(&Py##cls##ArrType_Type, 0) +#ifndef Py_LIMITED_API +/* For the limited API, use PyArray_ScalarAsCtype instead */ +#define PyArrayScalar_VAL(obj, cls) \ + ((Py##cls##ScalarObject *)obj)->obval +#define PyArrayScalar_ASSIGN(obj, cls, val) \ + PyArrayScalar_VAL(obj, cls) = val +#endif + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_ARRAYSCALARS_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/dtype_api.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/dtype_api.h new file mode 100644 index 0000000000000000000000000000000000000000..5ac964782ec02e44038dfc4db07b3d4be7961ceb --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/dtype_api.h @@ -0,0 +1,547 @@ +/* + * The public DType API + */ + +#ifndef NUMPY_CORE_INCLUDE_NUMPY___DTYPE_API_H_ +#define NUMPY_CORE_INCLUDE_NUMPY___DTYPE_API_H_ + +struct PyArrayMethodObject_tag; + +/* + * Largely opaque struct for DType classes (i.e. metaclass instances). + * The internal definition is currently in `ndarraytypes.h` (export is a bit + * more complex because `PyArray_Descr` is a DTypeMeta internally but not + * externally). + */ +#if !(defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD) + +#ifndef Py_LIMITED_API + + typedef struct PyArray_DTypeMeta_tag { + PyHeapTypeObject super; + + /* + * Most DTypes will have a singleton default instance, for the + * parametric legacy DTypes (bytes, string, void, datetime) this + * may be a pointer to the *prototype* instance? + */ + PyArray_Descr *singleton; + /* Copy of the legacy DTypes type number, usually invalid. */ + int type_num; + + /* The type object of the scalar instances (may be NULL?) */ + PyTypeObject *scalar_type; + /* + * DType flags to signal legacy, parametric, or + * abstract. But plenty of space for additional information/flags. + */ + npy_uint64 flags; + + /* + * Use indirection in order to allow a fixed size for this struct. + * A stable ABI size makes creating a static DType less painful + * while also ensuring flexibility for all opaque API (with one + * indirection due the pointer lookup). + */ + void *dt_slots; + /* Allow growing (at the moment also beyond this) */ + void *reserved[3]; + } PyArray_DTypeMeta; + +#else + +typedef PyTypeObject PyArray_DTypeMeta; + +#endif /* Py_LIMITED_API */ + +#endif /* not internal build */ + +/* + * ****************************************************** + * ArrayMethod API (Casting and UFuncs) + * ****************************************************** + */ + + +typedef enum { + /* Flag for whether the GIL is required */ + NPY_METH_REQUIRES_PYAPI = 1 << 0, + /* + * Some functions cannot set floating point error flags, this flag + * gives us the option (not requirement) to skip floating point error + * setup/check. No function should set error flags and ignore them + * since it would interfere with chaining operations (e.g. casting). + */ + NPY_METH_NO_FLOATINGPOINT_ERRORS = 1 << 1, + /* Whether the method supports unaligned access (not runtime) */ + NPY_METH_SUPPORTS_UNALIGNED = 1 << 2, + /* + * Used for reductions to allow reordering the operation. At this point + * assume that if set, it also applies to normal operations though! + */ + NPY_METH_IS_REORDERABLE = 1 << 3, + /* + * Private flag for now for *logic* functions. The logical functions + * `logical_or` and `logical_and` can always cast the inputs to booleans + * "safely" (because that is how the cast to bool is defined). + * @seberg: I am not sure this is the best way to handle this, so its + * private for now (also it is very limited anyway). + * There is one "exception". NA aware dtypes cannot cast to bool + * (hopefully), so the `??->?` loop should error even with this flag. + * But a second NA fallback loop will be necessary. + */ + _NPY_METH_FORCE_CAST_INPUTS = 1 << 17, + + /* All flags which can change at runtime */ + NPY_METH_RUNTIME_FLAGS = ( + NPY_METH_REQUIRES_PYAPI | + NPY_METH_NO_FLOATINGPOINT_ERRORS), +} NPY_ARRAYMETHOD_FLAGS; + + +typedef enum { + /* Casting via same_value logic */ + NPY_SAME_VALUE_CONTEXT_FLAG=1, +} NPY_ARRAYMETHOD_CONTEXT_FLAGS; + +typedef struct PyArrayMethod_Context_tag { + /* The caller, which is typically the original ufunc. May be NULL */ + PyObject *caller; + /* The method "self". Currently an opaque object. */ + struct PyArrayMethodObject_tag *method; + + /* Operand descriptors, filled in by resolve_descriptors */ + PyArray_Descr *const *descriptors; + #if NPY_FEATURE_VERSION > NPY_2_3_API_VERSION + void * _reserved; + /* + * Optional flag to pass information into the inner loop + * NPY_ARRAYMETHOD_CONTEXT_FLAGS + */ + uint64_t flags; + + /* + * Optional run-time parameters to pass to the loop (currently used in sorting). + * Fixed parameters are expected to be passed via auxdata. + */ + void *parameters; + + /* Structure may grow (this is harmless for DType authors) */ + #endif +} PyArrayMethod_Context; + + +/* + * The main object for creating a new ArrayMethod. We use the typical `slots` + * mechanism used by the Python limited API (see below for the slot defs). + */ +typedef struct { + const char *name; + int nin, nout; + NPY_CASTING casting; + NPY_ARRAYMETHOD_FLAGS flags; + PyArray_DTypeMeta **dtypes; + PyType_Slot *slots; +} PyArrayMethod_Spec; + + +// This is used for the convenience function `PyUFunc_AddLoopsFromSpecs` +typedef struct { + const char *name; + PyArrayMethod_Spec *spec; +} PyUFunc_LoopSlot; + + +/* + * ArrayMethod slots + * ----------------- + * + * SLOTS IDs For the ArrayMethod creation, once fully public, IDs are fixed + * but can be deprecated and arbitrarily extended. + */ +#define _NPY_METH_resolve_descriptors_with_scalars 1 +#define NPY_METH_resolve_descriptors 2 +#define NPY_METH_get_loop 3 +#define NPY_METH_get_reduction_initial 4 +/* specific loops for constructions/default get_loop: */ +#define NPY_METH_strided_loop 5 +#define NPY_METH_contiguous_loop 6 +#define NPY_METH_unaligned_strided_loop 7 +#define NPY_METH_unaligned_contiguous_loop 8 +#define NPY_METH_contiguous_indexed_loop 9 +#define _NPY_METH_static_data 10 + +/* + * The resolve descriptors function, must be able to handle NULL values for + * all output (but not input) `given_descrs` and fill `loop_descrs`. + * Return -1 on error or 0 if the operation is not possible without an error + * set. (This may still be in flux.) + * Otherwise must return the "casting safety", for normal functions, this is + * almost always "safe" (or even "equivalent"?). + * + * `resolve_descriptors` is optional if all output DTypes are non-parametric. + */ +typedef NPY_CASTING (PyArrayMethod_ResolveDescriptors)( + /* "method" is currently opaque (necessary e.g. to wrap Python) */ + struct PyArrayMethodObject_tag *method, + /* DTypes the method was created for */ + PyArray_DTypeMeta *const *dtypes, + /* Input descriptors (instances). Outputs may be NULL. */ + PyArray_Descr *const *given_descrs, + /* Exact loop descriptors to use, must not hold references on error */ + PyArray_Descr **loop_descrs, + npy_intp *view_offset); + + +/* + * Rarely needed, slightly more powerful version of `resolve_descriptors`. + * See also `PyArrayMethod_ResolveDescriptors` for details on shared arguments. + * + * NOTE: This function is private now as it is unclear how and what to pass + * exactly as additional information to allow dealing with the scalars. + * See also gh-24915. + */ +typedef NPY_CASTING (PyArrayMethod_ResolveDescriptorsWithScalar)( + struct PyArrayMethodObject_tag *method, + PyArray_DTypeMeta *const *dtypes, + /* Unlike above, these can have any DType and we may allow NULL. */ + PyArray_Descr *const *given_descrs, + /* + * Input scalars or NULL. Only ever passed for python scalars. + * WARNING: In some cases, a loop may be explicitly selected and the + * value passed is not available (NULL) or does not have the + * expected type. + */ + PyObject *const *input_scalars, + PyArray_Descr **loop_descrs, + npy_intp *view_offset); + + + +typedef int (PyArrayMethod_StridedLoop)(PyArrayMethod_Context *context, + char *const *data, const npy_intp *dimensions, const npy_intp *strides, + NpyAuxData *transferdata); + + +typedef int (PyArrayMethod_GetLoop)( + PyArrayMethod_Context *context, + int aligned, int move_references, + const npy_intp *strides, + PyArrayMethod_StridedLoop **out_loop, + NpyAuxData **out_transferdata, + NPY_ARRAYMETHOD_FLAGS *flags); + +/** + * Query an ArrayMethod for the initial value for use in reduction. + * + * @param context The arraymethod context, mainly to access the descriptors. + * @param reduction_is_empty Whether the reduction is empty. When it is, the + * value returned may differ. In this case it is a "default" value that + * may differ from the "identity" value normally used. For example: + * - `0.0` is the default for `sum([])`. But `-0.0` is the correct + * identity otherwise as it preserves the sign for `sum([-0.0])`. + * - We use no identity for object, but return the default of `0` and `1` + * for the empty `sum([], dtype=object)` and `prod([], dtype=object)`. + * This allows `np.sum(np.array(["a", "b"], dtype=object))` to work. + * - `-inf` or `INT_MIN` for `max` is an identity, but at least `INT_MIN` + * not a good *default* when there are no items. + * @param initial Pointer to initial data to be filled (if possible) + * + * @returns -1, 0, or 1 indicating error, no initial value, and initial being + * successfully filled. Errors must not be given where 0 is correct, NumPy + * may call this even when not strictly necessary. + */ +typedef int (PyArrayMethod_GetReductionInitial)( + PyArrayMethod_Context *context, npy_bool reduction_is_empty, + void *initial); + +/* + * The following functions are only used by the wrapping array method defined + * in umath/wrapping_array_method.c + */ + + +/* + * The function to convert the given descriptors (passed in to + * `resolve_descriptors`) and translates them for the wrapped loop. + * The new descriptors MUST be viewable with the old ones, `NULL` must be + * supported (for outputs) and should normally be forwarded. + * + * The function must clean up on error. + * + * NOTE: We currently assume that this translation gives "viewable" results. + * I.e. there is no additional casting related to the wrapping process. + * In principle that could be supported, but not sure it is useful. + * This currently also means that e.g. alignment must apply identically + * to the new dtypes. + * + * TODO: Due to the fact that `resolve_descriptors` is also used for `can_cast` + * there is no way to "pass out" the result of this function. This means + * it will be called twice for every ufunc call. + * (I am considering including `auxdata` as an "optional" parameter to + * `resolve_descriptors`, so that it can be filled there if not NULL.) + */ +typedef int (PyArrayMethod_TranslateGivenDescriptors)(int nin, int nout, + PyArray_DTypeMeta *const wrapped_dtypes[], + PyArray_Descr *const given_descrs[], PyArray_Descr *new_descrs[]); + +/** + * The function to convert the actual loop descriptors (as returned by the + * original `resolve_descriptors` function) to the ones the output array + * should use. + * This function must return "viewable" types, it must not mutate them in any + * form that would break the inner-loop logic. Does not need to support NULL. + * + * The function must clean up on error. + * + * @param nin Number of input arguments + * @param nout Number of output arguments + * @param new_dtypes The DTypes of the output (usually probably not needed) + * @param given_descrs Original given_descrs to the resolver, necessary to + * fetch any information related to the new dtypes from the original. + * @param original_descrs The `loop_descrs` returned by the wrapped loop. + * @param loop_descrs The output descriptors, compatible to `original_descrs`. + * + * @returns 0 on success, -1 on failure. + */ +typedef int (PyArrayMethod_TranslateLoopDescriptors)(int nin, int nout, + PyArray_DTypeMeta *const new_dtypes[], PyArray_Descr *const given_descrs[], + PyArray_Descr *original_descrs[], PyArray_Descr *loop_descrs[]); + + + +/* + * A traverse loop working on a single array. This is similar to the general + * strided-loop function. This is designed for loops that need to visit every + * element of a single array. + * + * Currently this is used for array clearing, via the NPY_DT_get_clear_loop + * API hook, and zero-filling, via the NPY_DT_get_fill_zero_loop API hook. + * These are most useful for handling arrays storing embedded references to + * python objects or heap-allocated data. + * + * The `void *traverse_context` is passed in because we may need to pass in + * Interpreter state or similar in the future, but we don't want to pass in + * a full context (with pointers to dtypes, method, caller which all make + * no sense for a traverse function). + * + * We assume for now that this context can be just passed through in the + * the future (for structured dtypes). + * + */ +typedef int (PyArrayMethod_TraverseLoop)( + void *traverse_context, const PyArray_Descr *descr, char *data, + npy_intp size, npy_intp stride, NpyAuxData *auxdata); + + +/* + * Simplified get_loop function specific to dtype traversal + * + * It should set the flags needed for the traversal loop and set out_loop to the + * loop function, which must be a valid PyArrayMethod_TraverseLoop + * pointer. Currently this is used for zero-filling and clearing arrays storing + * embedded references. + * + */ +typedef int (PyArrayMethod_GetTraverseLoop)( + void *traverse_context, const PyArray_Descr *descr, + int aligned, npy_intp fixed_stride, + PyArrayMethod_TraverseLoop **out_loop, NpyAuxData **out_auxdata, + NPY_ARRAYMETHOD_FLAGS *flags); + + +/* + * Type of the C promoter function, which must be wrapped into a + * PyCapsule with name "numpy._ufunc_promoter". + * + * Note that currently the output dtypes are always NULL unless they are + * also part of the signature. This is an implementation detail and could + * change in the future. However, in general promoters should not have a + * need for output dtypes. + * (There are potential use-cases, these are currently unsupported.) + */ +typedef int (PyArrayMethod_PromoterFunction)(PyObject *ufunc, + PyArray_DTypeMeta *const op_dtypes[], PyArray_DTypeMeta *const signature[], + PyArray_DTypeMeta *new_op_dtypes[]); + +/* + * **************************** + * DTYPE API + * **************************** + */ + +#define NPY_DT_ABSTRACT 1 << 1 +#define NPY_DT_PARAMETRIC 1 << 2 +#define NPY_DT_NUMERIC 1 << 3 + +/* + * These correspond to slots in the NPY_DType_Slots struct and must + * be in the same order as the members of that struct. If new slots + * get added or old slots get removed NPY_NUM_DTYPE_SLOTS must also + * be updated + */ + +#define NPY_DT_discover_descr_from_pyobject 1 +// this slot is considered private because its API hasn't been decided +#define _NPY_DT_is_known_scalar_type 2 +#define NPY_DT_default_descr 3 +#define NPY_DT_common_dtype 4 +#define NPY_DT_common_instance 5 +#define NPY_DT_ensure_canonical 6 +#define NPY_DT_setitem 7 +#define NPY_DT_getitem 8 +#define NPY_DT_get_clear_loop 9 +#define NPY_DT_get_fill_zero_loop 10 +#define NPY_DT_finalize_descr 11 +#define NPY_DT_get_constant 12 + +// These PyArray_ArrFunc slots will be deprecated and replaced eventually +// getitem and setitem can be defined as a performance optimization; +// by default the user dtypes call `legacy_getitem_using_DType` and +// `legacy_setitem_using_DType`, respectively. This functionality is +// only supported for basic NumPy DTypes. + + +// used to separate dtype slots from arrfuncs slots +// intended only for internal use but defined here for clarity +#define _NPY_DT_ARRFUNCS_OFFSET (1 << 11) + +// Cast is disabled +// #define NPY_DT_PyArray_ArrFuncs_cast 0 + _NPY_DT_ARRFUNCS_OFFSET + +#define NPY_DT_PyArray_ArrFuncs_getitem 1 + _NPY_DT_ARRFUNCS_OFFSET +#define NPY_DT_PyArray_ArrFuncs_setitem 2 + _NPY_DT_ARRFUNCS_OFFSET + +// Copyswap is disabled +// #define NPY_DT_PyArray_ArrFuncs_copyswapn 3 + _NPY_DT_ARRFUNCS_OFFSET +// #define NPY_DT_PyArray_ArrFuncs_copyswap 4 + _NPY_DT_ARRFUNCS_OFFSET +#define NPY_DT_PyArray_ArrFuncs_compare 5 + _NPY_DT_ARRFUNCS_OFFSET +#define NPY_DT_PyArray_ArrFuncs_argmax 6 + _NPY_DT_ARRFUNCS_OFFSET +#define NPY_DT_PyArray_ArrFuncs_dotfunc 7 + _NPY_DT_ARRFUNCS_OFFSET +#define NPY_DT_PyArray_ArrFuncs_scanfunc 8 + _NPY_DT_ARRFUNCS_OFFSET +#define NPY_DT_PyArray_ArrFuncs_fromstr 9 + _NPY_DT_ARRFUNCS_OFFSET +#define NPY_DT_PyArray_ArrFuncs_nonzero 10 + _NPY_DT_ARRFUNCS_OFFSET +#define NPY_DT_PyArray_ArrFuncs_fill 11 + _NPY_DT_ARRFUNCS_OFFSET +#define NPY_DT_PyArray_ArrFuncs_fillwithscalar 12 + _NPY_DT_ARRFUNCS_OFFSET +#define NPY_DT_PyArray_ArrFuncs_sort 13 + _NPY_DT_ARRFUNCS_OFFSET +#define NPY_DT_PyArray_ArrFuncs_argsort 14 + _NPY_DT_ARRFUNCS_OFFSET + +// Casting related slots are disabled. See +// https://github.com/numpy/numpy/pull/23173#discussion_r1101098163 +// #define NPY_DT_PyArray_ArrFuncs_castdict 15 + _NPY_DT_ARRFUNCS_OFFSET +// #define NPY_DT_PyArray_ArrFuncs_scalarkind 16 + _NPY_DT_ARRFUNCS_OFFSET +// #define NPY_DT_PyArray_ArrFuncs_cancastscalarkindto 17 + _NPY_DT_ARRFUNCS_OFFSET +// #define NPY_DT_PyArray_ArrFuncs_cancastto 18 + _NPY_DT_ARRFUNCS_OFFSET + +// These are deprecated in NumPy 1.19, so are disabled here. +// #define NPY_DT_PyArray_ArrFuncs_fastclip 19 + _NPY_DT_ARRFUNCS_OFFSET +// #define NPY_DT_PyArray_ArrFuncs_fastputmask 20 + _NPY_DT_ARRFUNCS_OFFSET +// #define NPY_DT_PyArray_ArrFuncs_fasttake 21 + _NPY_DT_ARRFUNCS_OFFSET +#define NPY_DT_PyArray_ArrFuncs_argmin 22 + _NPY_DT_ARRFUNCS_OFFSET + + +// TODO: These slots probably still need some thought, and/or a way to "grow"? +typedef struct { + PyTypeObject *typeobj; /* type of python scalar or NULL */ + int flags; /* flags, including parametric and abstract */ + /* NULL terminated cast definitions. Use NULL for the newly created DType */ + PyArrayMethod_Spec **casts; + PyType_Slot *slots; + /* Baseclass or NULL (will always subclass `np.dtype`) */ + PyTypeObject *baseclass; +} PyArrayDTypeMeta_Spec; + + +typedef PyArray_Descr *(PyArrayDTypeMeta_DiscoverDescrFromPyobject)( + PyArray_DTypeMeta *cls, PyObject *obj); + +/* + * Before making this public, we should decide whether it should pass + * the type, or allow looking at the object. A possible use-case: + * `np.array(np.array([0]), dtype=np.ndarray)` + * Could consider arrays that are not `dtype=ndarray` "scalars". + */ +typedef int (PyArrayDTypeMeta_IsKnownScalarType)( + PyArray_DTypeMeta *cls, PyTypeObject *obj); + +typedef PyArray_Descr *(PyArrayDTypeMeta_DefaultDescriptor)(PyArray_DTypeMeta *cls); +typedef PyArray_DTypeMeta *(PyArrayDTypeMeta_CommonDType)( + PyArray_DTypeMeta *dtype1, PyArray_DTypeMeta *dtype2); + + +/* + * Convenience utility for getting a reference to the DType metaclass associated + * with a dtype instance. + */ +#define NPY_DTYPE(descr) ((PyArray_DTypeMeta *)Py_TYPE(descr)) + +static inline PyArray_DTypeMeta * +NPY_DT_NewRef(PyArray_DTypeMeta *o) { + Py_INCREF((PyObject *)o); + return o; +} + + +typedef PyArray_Descr *(PyArrayDTypeMeta_CommonInstance)( + PyArray_Descr *dtype1, PyArray_Descr *dtype2); +typedef PyArray_Descr *(PyArrayDTypeMeta_EnsureCanonical)(PyArray_Descr *dtype); +/* + * Returns either a new reference to *dtype* or a new descriptor instance + * initialized with the same parameters as *dtype*. The caller cannot know + * which choice a dtype will make. This function is called just before the + * array buffer is created for a newly created array, it is not called for + * views and the descriptor returned by this function is attached to the array. + */ +typedef PyArray_Descr *(PyArrayDTypeMeta_FinalizeDescriptor)(PyArray_Descr *dtype); + +/* + * Constants that can be queried and used e.g. by reduce identies defaults. + * These are also used to expose .finfo and .iinfo for example. + */ +/* Numerical constants */ +#define NPY_CONSTANT_zero 1 +#define NPY_CONSTANT_one 2 +#define NPY_CONSTANT_all_bits_set 3 +#define NPY_CONSTANT_maximum_finite 4 +#define NPY_CONSTANT_minimum_finite 5 +#define NPY_CONSTANT_inf 6 +#define NPY_CONSTANT_ninf 7 +#define NPY_CONSTANT_nan 8 +#define NPY_CONSTANT_finfo_radix 9 +#define NPY_CONSTANT_finfo_eps 10 +#define NPY_CONSTANT_finfo_smallest_normal 11 +#define NPY_CONSTANT_finfo_smallest_subnormal 12 +/* Constants that are always of integer type, value is `npy_intp/Py_ssize_t` */ +#define NPY_CONSTANT_finfo_nmant (1 << 16) + 0 +#define NPY_CONSTANT_finfo_min_exp (1 << 16) + 1 +#define NPY_CONSTANT_finfo_max_exp (1 << 16) + 2 +#define NPY_CONSTANT_finfo_decimal_digits (1 << 16) + 3 + +/* It may make sense to continue with other constants here, e.g. pi, etc? */ + +/* + * Function to get a constant value for the dtype. Data may be unaligned, the + * function is always called with the GIL held. + * + * @param descr The dtype instance (i.e. self) + * @param ID The ID of the constant to get. + * @param data Pointer to the data to be written too, may be unaligned. + * @returns 1 on success, 0 if the constant is not available, or -1 with an error set. + */ +typedef int (PyArrayDTypeMeta_GetConstant)(PyArray_Descr *descr, int ID, void *data); + +/* + * TODO: These two functions are currently only used for experimental DType + * API support. Their relation should be "reversed": NumPy should + * always use them internally. + * There are open points about "casting safety" though, e.g. setting + * elements is currently always unsafe. + */ +typedef int(PyArrayDTypeMeta_SetItem)(PyArray_Descr *, PyObject *, char *); +typedef PyObject *(PyArrayDTypeMeta_GetItem)(PyArray_Descr *, char *); + +typedef struct { + NPY_SORTKIND flags; +} PyArrayMethod_SortParameters; + +#endif /* NUMPY_CORE_INCLUDE_NUMPY___DTYPE_API_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/halffloat.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/halffloat.h new file mode 100644 index 0000000000000000000000000000000000000000..950401664e101d17ce5461ecb21c7d3bdf824f42 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/halffloat.h @@ -0,0 +1,70 @@ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_HALFFLOAT_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_HALFFLOAT_H_ + +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * Half-precision routines + */ + +/* Conversions */ +float npy_half_to_float(npy_half h); +double npy_half_to_double(npy_half h); +npy_half npy_float_to_half(float f); +npy_half npy_double_to_half(double d); +/* Comparisons */ +int npy_half_eq(npy_half h1, npy_half h2); +int npy_half_ne(npy_half h1, npy_half h2); +int npy_half_le(npy_half h1, npy_half h2); +int npy_half_lt(npy_half h1, npy_half h2); +int npy_half_ge(npy_half h1, npy_half h2); +int npy_half_gt(npy_half h1, npy_half h2); +/* faster *_nonan variants for when you know h1 and h2 are not NaN */ +int npy_half_eq_nonan(npy_half h1, npy_half h2); +int npy_half_lt_nonan(npy_half h1, npy_half h2); +int npy_half_le_nonan(npy_half h1, npy_half h2); +/* Miscellaneous functions */ +int npy_half_iszero(npy_half h); +int npy_half_isnan(npy_half h); +int npy_half_isinf(npy_half h); +int npy_half_isfinite(npy_half h); +int npy_half_signbit(npy_half h); +npy_half npy_half_copysign(npy_half x, npy_half y); +npy_half npy_half_spacing(npy_half h); +npy_half npy_half_nextafter(npy_half x, npy_half y); +npy_half npy_half_divmod(npy_half x, npy_half y, npy_half *modulus); + +/* + * Half-precision constants + */ + +#define NPY_HALF_ZERO (0x0000u) +#define NPY_HALF_PZERO (0x0000u) +#define NPY_HALF_NZERO (0x8000u) +#define NPY_HALF_ONE (0x3c00u) +#define NPY_HALF_NEGONE (0xbc00u) +#define NPY_HALF_PINF (0x7c00u) +#define NPY_HALF_NINF (0xfc00u) +#define NPY_HALF_NAN (0x7e00u) + +#define NPY_MAX_HALF (0x7bffu) + +/* + * Bit-level conversions + */ + +npy_uint16 npy_floatbits_to_halfbits(npy_uint32 f); +npy_uint16 npy_doublebits_to_halfbits(npy_uint64 d); +npy_uint32 npy_halfbits_to_floatbits(npy_uint16 h); +npy_uint64 npy_halfbits_to_doublebits(npy_uint16 h); + +#ifdef __cplusplus +} +#endif + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_HALFFLOAT_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/ndarrayobject.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/ndarrayobject.h new file mode 100644 index 0000000000000000000000000000000000000000..6bfc40fa6e2f2e6505f3cc8be2602d0a84363cfb --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/ndarrayobject.h @@ -0,0 +1,304 @@ +/* + * DON'T INCLUDE THIS DIRECTLY. + */ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_NDARRAYOBJECT_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_NDARRAYOBJECT_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +#include +#include "ndarraytypes.h" +#include "dtype_api.h" + +/* Includes the "function" C-API -- these are all stored in a + list of pointers --- one for each file + The two lists are concatenated into one in multiarray. + + They are available as import_array() +*/ + +#include "__multiarray_api.h" + +/* + * Include any definitions which are defined differently for 1.x and 2.x + * (Symbols only available on 2.x are not there, but rather guarded.) + */ +#include "npy_2_compat.h" + +/* C-API that requires previous API to be defined */ + +#define PyArray_DescrCheck(op) PyObject_TypeCheck(op, &PyArrayDescr_Type) + +#define PyArray_Check(op) PyObject_TypeCheck(op, &PyArray_Type) +#define PyArray_CheckExact(op) (Py_TYPE((PyObject*)(op)) == &PyArray_Type) + +#define PyArray_HasArrayInterfaceType(op, type, context, out) \ + ((((out)=PyArray_FromStructInterface(op)) != Py_NotImplemented) || \ + (((out)=PyArray_FromInterface(op)) != Py_NotImplemented) || \ + (((out)=PyArray_FromArrayAttr(op, type, context)) != \ + Py_NotImplemented)) + +#define PyArray_HasArrayInterface(op, out) \ + PyArray_HasArrayInterfaceType(op, NULL, NULL, out) + +#define PyArray_IsZeroDim(op) (PyArray_Check(op) && \ + (PyArray_NDIM((PyArrayObject *)op) == 0)) + +#define PyArray_IsScalar(obj, cls) \ + (PyObject_TypeCheck(obj, &Py##cls##ArrType_Type)) + +#define PyArray_CheckScalar(m) (PyArray_IsScalar(m, Generic) || \ + PyArray_IsZeroDim(m)) +#define PyArray_IsPythonNumber(obj) \ + (PyFloat_Check(obj) || PyComplex_Check(obj) || \ + PyLong_Check(obj) || PyBool_Check(obj)) +#define PyArray_IsIntegerScalar(obj) (PyLong_Check(obj) \ + || PyArray_IsScalar((obj), Integer)) +#define PyArray_IsPythonScalar(obj) \ + (PyArray_IsPythonNumber(obj) || PyBytes_Check(obj) || \ + PyUnicode_Check(obj)) + +#define PyArray_IsAnyScalar(obj) \ + (PyArray_IsScalar(obj, Generic) || PyArray_IsPythonScalar(obj)) + +#define PyArray_CheckAnyScalar(obj) (PyArray_IsPythonScalar(obj) || \ + PyArray_CheckScalar(obj)) + + +#define PyArray_GETCONTIGUOUS(m) (PyArray_ISCONTIGUOUS(m) ? \ + Py_INCREF(m), (m) : \ + (PyArrayObject *)(PyArray_Copy(m))) + +#define PyArray_SAMESHAPE(a1,a2) ((PyArray_NDIM(a1) == PyArray_NDIM(a2)) && \ + PyArray_CompareLists(PyArray_DIMS(a1), \ + PyArray_DIMS(a2), \ + PyArray_NDIM(a1))) + +#define PyArray_SIZE(m) PyArray_MultiplyList(PyArray_DIMS(m), PyArray_NDIM(m)) +#define PyArray_NBYTES(m) (PyArray_ITEMSIZE(m) * PyArray_SIZE(m)) +#define PyArray_FROM_O(m) PyArray_FromAny(m, NULL, 0, 0, 0, NULL) + +#define PyArray_FROM_OF(m,flags) PyArray_CheckFromAny(m, NULL, 0, 0, flags, \ + NULL) + +#define PyArray_FROM_OT(m,type) PyArray_FromAny(m, \ + PyArray_DescrFromType(type), 0, 0, 0, NULL) + +#define PyArray_FROM_OTF(m, type, flags) \ + PyArray_FromAny(m, PyArray_DescrFromType(type), 0, 0, \ + (((flags) & NPY_ARRAY_ENSURECOPY) ? \ + ((flags) | NPY_ARRAY_DEFAULT) : (flags)), NULL) + +#define PyArray_FROMANY(m, type, min, max, flags) \ + PyArray_FromAny(m, PyArray_DescrFromType(type), min, max, \ + (((flags) & NPY_ARRAY_ENSURECOPY) ? \ + (flags) | NPY_ARRAY_DEFAULT : (flags)), NULL) + +#define PyArray_ZEROS(m, dims, type, is_f_order) \ + PyArray_Zeros(m, dims, PyArray_DescrFromType(type), is_f_order) + +#define PyArray_EMPTY(m, dims, type, is_f_order) \ + PyArray_Empty(m, dims, PyArray_DescrFromType(type), is_f_order) + +#define PyArray_FILLWBYTE(obj, val) memset(PyArray_DATA(obj), val, \ + PyArray_NBYTES(obj)) + +#define PyArray_ContiguousFromAny(op, type, min_depth, max_depth) \ + PyArray_FromAny(op, PyArray_DescrFromType(type), min_depth, \ + max_depth, NPY_ARRAY_DEFAULT, NULL) + +#define PyArray_EquivArrTypes(a1, a2) \ + PyArray_EquivTypes(PyArray_DESCR(a1), PyArray_DESCR(a2)) + +#define PyArray_EquivByteorders(b1, b2) \ + (((b1) == (b2)) || (PyArray_ISNBO(b1) == PyArray_ISNBO(b2))) + +#define PyArray_SimpleNew(nd, dims, typenum) \ + PyArray_New(&PyArray_Type, nd, dims, typenum, NULL, NULL, 0, 0, NULL) + +#define PyArray_SimpleNewFromData(nd, dims, typenum, data) \ + PyArray_New(&PyArray_Type, nd, dims, typenum, NULL, \ + data, 0, NPY_ARRAY_CARRAY, NULL) + +#define PyArray_SimpleNewFromDescr(nd, dims, descr) \ + PyArray_NewFromDescr(&PyArray_Type, descr, nd, dims, \ + NULL, NULL, 0, NULL) + +#define PyArray_ToScalar(data, arr) \ + PyArray_Scalar(data, PyArray_DESCR(arr), (PyObject *)arr) + + +/* These might be faster without the dereferencing of obj + going on inside -- of course an optimizing compiler should + inline the constants inside a for loop making it a moot point +*/ + +#define PyArray_GETPTR1(obj, i) ((void *)(PyArray_BYTES(obj) + \ + (i)*PyArray_STRIDES(obj)[0])) + +#define PyArray_GETPTR2(obj, i, j) ((void *)(PyArray_BYTES(obj) + \ + (i)*PyArray_STRIDES(obj)[0] + \ + (j)*PyArray_STRIDES(obj)[1])) + +#define PyArray_GETPTR3(obj, i, j, k) ((void *)(PyArray_BYTES(obj) + \ + (i)*PyArray_STRIDES(obj)[0] + \ + (j)*PyArray_STRIDES(obj)[1] + \ + (k)*PyArray_STRIDES(obj)[2])) + +#define PyArray_GETPTR4(obj, i, j, k, l) ((void *)(PyArray_BYTES(obj) + \ + (i)*PyArray_STRIDES(obj)[0] + \ + (j)*PyArray_STRIDES(obj)[1] + \ + (k)*PyArray_STRIDES(obj)[2] + \ + (l)*PyArray_STRIDES(obj)[3])) + +static inline void +PyArray_DiscardWritebackIfCopy(PyArrayObject *arr) +{ + PyArrayObject_fields *fa = (PyArrayObject_fields *)arr; + if (fa && fa->base) { + if (fa->flags & NPY_ARRAY_WRITEBACKIFCOPY) { + PyArray_ENABLEFLAGS((PyArrayObject*)fa->base, NPY_ARRAY_WRITEABLE); + Py_DECREF(fa->base); + fa->base = NULL; + PyArray_CLEARFLAGS(arr, NPY_ARRAY_WRITEBACKIFCOPY); + } + } +} + +#define PyArray_DESCR_REPLACE(descr) do { \ + PyArray_Descr *_new_; \ + _new_ = PyArray_DescrNew(descr); \ + Py_XDECREF(descr); \ + descr = _new_; \ + } while(0) + +/* Copy should always return contiguous array */ +#define PyArray_Copy(obj) PyArray_NewCopy(obj, NPY_CORDER) + +#define PyArray_FromObject(op, type, min_depth, max_depth) \ + PyArray_FromAny(op, PyArray_DescrFromType(type), min_depth, \ + max_depth, NPY_ARRAY_BEHAVED | \ + NPY_ARRAY_ENSUREARRAY, NULL) + +#define PyArray_ContiguousFromObject(op, type, min_depth, max_depth) \ + PyArray_FromAny(op, PyArray_DescrFromType(type), min_depth, \ + max_depth, NPY_ARRAY_DEFAULT | \ + NPY_ARRAY_ENSUREARRAY, NULL) + +#define PyArray_CopyFromObject(op, type, min_depth, max_depth) \ + PyArray_FromAny(op, PyArray_DescrFromType(type), min_depth, \ + max_depth, NPY_ARRAY_ENSURECOPY | \ + NPY_ARRAY_DEFAULT | \ + NPY_ARRAY_ENSUREARRAY, NULL) + +#define PyArray_Cast(mp, type_num) \ + PyArray_CastToType(mp, PyArray_DescrFromType(type_num), 0) + +#define PyArray_Take(ap, items, axis) \ + PyArray_TakeFrom(ap, items, axis, NULL, NPY_RAISE) + +#define PyArray_Put(ap, items, values) \ + PyArray_PutTo(ap, items, values, NPY_RAISE) + + +/* + Check to see if this key in the dictionary is the "title" + entry of the tuple (i.e. a duplicate dictionary entry in the fields + dict). +*/ + +static inline int +NPY_TITLE_KEY_check(PyObject *key, PyObject *value) +{ + PyObject *title; + if (PyTuple_Size(value) != 3) { + return 0; + } + title = PyTuple_GetItem(value, 2); + if (key == title) { + return 1; + } +#ifdef PYPY_VERSION + /* + * On PyPy, dictionary keys do not always preserve object identity. + * Fall back to comparison by value. + */ + if (PyUnicode_Check(title) && PyUnicode_Check(key)) { + return PyUnicode_Compare(title, key) == 0 ? 1 : 0; + } +#endif + return 0; +} + +/* Macro, for backward compat with "if NPY_TITLE_KEY(key, value) { ..." */ +#define NPY_TITLE_KEY(key, value) (NPY_TITLE_KEY_check((key), (value))) + +#define DEPRECATE(msg) PyErr_WarnEx(PyExc_DeprecationWarning,msg,1) +#define DEPRECATE_FUTUREWARNING(msg) PyErr_WarnEx(PyExc_FutureWarning,msg,1) + + +/* + * These macros and functions unfortunately require runtime version checks + * that are only defined in `npy_2_compat.h`. For that reasons they cannot be + * part of `ndarraytypes.h` which tries to be self contained. + */ + +static inline npy_intp +PyArray_ITEMSIZE(const PyArrayObject *arr) +{ + return PyDataType_ELSIZE(((PyArrayObject_fields *)arr)->descr); +} + +#define PyDataType_HASFIELDS(obj) (PyDataType_ISLEGACY((PyArray_Descr*)(obj)) && PyDataType_NAMES((PyArray_Descr*)(obj)) != NULL) +#define PyDataType_HASSUBARRAY(dtype) (PyDataType_ISLEGACY(dtype) && PyDataType_SUBARRAY(dtype) != NULL) +#define PyDataType_ISUNSIZED(dtype) ((dtype)->elsize == 0 && \ + !PyDataType_HASFIELDS(dtype)) + +#define PyDataType_FLAGCHK(dtype, flag) \ + ((PyDataType_FLAGS(dtype) & (flag)) == (flag)) + +#define PyDataType_REFCHK(dtype) \ + PyDataType_FLAGCHK(dtype, NPY_ITEM_REFCOUNT) + +#define NPY_BEGIN_THREADS_DESCR(dtype) \ + do {if (!(PyDataType_FLAGCHK((dtype), NPY_NEEDS_PYAPI))) \ + NPY_BEGIN_THREADS;} while (0); + +#define NPY_END_THREADS_DESCR(dtype) \ + do {if (!(PyDataType_FLAGCHK((dtype), NPY_NEEDS_PYAPI))) \ + NPY_END_THREADS; } while (0); + +#if !(defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD) +/* The internal copy of this is now defined in `dtypemeta.h` */ +/* + * `PyArray_Scalar` is the same as this function but converts will convert + * most NumPy types to Python scalars. + */ +static inline PyObject * +PyArray_GETITEM(const PyArrayObject *arr, const char *itemptr) +{ + return PyDataType_GetArrFuncs(((PyArrayObject_fields *)arr)->descr)->getitem( + (void *)itemptr, (PyArrayObject *)arr); +} + +/* + * SETITEM should only be used if it is known that the value is a scalar + * and of a type understood by the arrays dtype. + * Use `PyArray_Pack` if the value may be of a different dtype. + */ +static inline int +PyArray_SETITEM(PyArrayObject *arr, char *itemptr, PyObject *v) +{ + return PyDataType_GetArrFuncs(((PyArrayObject_fields *)arr)->descr)->setitem(v, itemptr, arr); +} +#endif /* not internal */ + + +#ifdef __cplusplus +} +#endif + + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_NDARRAYOBJECT_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/ndarraytypes.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/ndarraytypes.h new file mode 100644 index 0000000000000000000000000000000000000000..f740788f3720ca625355d2d2cdee70f1c86e17e1 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/ndarraytypes.h @@ -0,0 +1,1982 @@ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_NDARRAYTYPES_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_NDARRAYTYPES_H_ + +#include "npy_common.h" +#include "npy_endian.h" +#include "npy_cpu.h" +#include "utils.h" + +#ifdef __cplusplus +extern "C" { +#endif + +#define NPY_NO_EXPORT NPY_VISIBILITY_HIDDEN + +/* Always allow threading unless it was explicitly disabled at build time */ +#if !NPY_NO_SMP + #define NPY_ALLOW_THREADS 1 +#else + #define NPY_ALLOW_THREADS 0 +#endif + +#ifndef __has_extension +#define __has_extension(x) 0 +#endif + +/* + * There are several places in the code where an array of dimensions + * is allocated statically. This is the size of that static + * allocation. + * + * The array creation itself could have arbitrary dimensions but all + * the places where static allocation is used would need to be changed + * to dynamic (including inside of several structures) + * + * As of NumPy 2.0, we strongly discourage the downstream use of NPY_MAXDIMS, + * but since auditing everything seems a big ask, define it as 64. + * A future version could: + * - Increase or remove the limit and require recompilation (like 2.0 did) + * - Deprecate or remove the macro but keep the limit (at basically any time) + */ +#define NPY_MAXDIMS 64 +/* We cannot change this as it would break ABI: */ +#define NPY_MAXDIMS_LEGACY_ITERS 32 +/* NPY_MAXARGS is version dependent and defined in npy_2_compat.h */ + +/* Used for Converter Functions "O&" code in ParseTuple */ +#define NPY_FAIL 0 +#define NPY_SUCCEED 1 + + +enum NPY_TYPES { NPY_BOOL=0, + NPY_BYTE, NPY_UBYTE, + NPY_SHORT, NPY_USHORT, + NPY_INT, NPY_UINT, + NPY_LONG, NPY_ULONG, + NPY_LONGLONG, NPY_ULONGLONG, + NPY_FLOAT, NPY_DOUBLE, NPY_LONGDOUBLE, + NPY_CFLOAT, NPY_CDOUBLE, NPY_CLONGDOUBLE, + NPY_OBJECT=17, + NPY_STRING, NPY_UNICODE, + NPY_VOID, + /* + * New 1.6 types appended, may be integrated + * into the above in 2.0. + */ + NPY_DATETIME, NPY_TIMEDELTA, NPY_HALF, + + NPY_CHAR, /* Deprecated, will raise if used */ + + /* The number of *legacy* dtypes */ + NPY_NTYPES_LEGACY=24, + + /* assign a high value to avoid changing this in the + future when new dtypes are added */ + NPY_NOTYPE=25, + + NPY_USERDEF=256, /* leave room for characters */ + + /* The number of types not including the new 1.6 types */ + NPY_NTYPES_ABI_COMPATIBLE=21, + + /* + * New DTypes which do not share the legacy layout + * (added after NumPy 2.0). VSTRING is the first of these + * we may open up a block for user-defined dtypes in the + * future. + */ + NPY_VSTRING=2056, +}; + + +/* basetype array priority */ +#define NPY_PRIORITY 0.0 + +/* default subtype priority */ +#define NPY_SUBTYPE_PRIORITY 1.0 + +/* default scalar priority */ +#define NPY_SCALAR_PRIORITY -1000000.0 + +/* How many floating point types are there (excluding half) */ +#define NPY_NUM_FLOATTYPE 3 + +/* + * These characters correspond to the array type and the struct + * module + */ + +enum NPY_TYPECHAR { + NPY_BOOLLTR = '?', + NPY_BYTELTR = 'b', + NPY_UBYTELTR = 'B', + NPY_SHORTLTR = 'h', + NPY_USHORTLTR = 'H', + NPY_INTLTR = 'i', + NPY_UINTLTR = 'I', + NPY_LONGLTR = 'l', + NPY_ULONGLTR = 'L', + NPY_LONGLONGLTR = 'q', + NPY_ULONGLONGLTR = 'Q', + NPY_HALFLTR = 'e', + NPY_FLOATLTR = 'f', + NPY_DOUBLELTR = 'd', + NPY_LONGDOUBLELTR = 'g', + NPY_CFLOATLTR = 'F', + NPY_CDOUBLELTR = 'D', + NPY_CLONGDOUBLELTR = 'G', + NPY_OBJECTLTR = 'O', + NPY_STRINGLTR = 'S', + NPY_DEPRECATED_STRINGLTR2 = 'a', + NPY_UNICODELTR = 'U', + NPY_VOIDLTR = 'V', + NPY_DATETIMELTR = 'M', + NPY_TIMEDELTALTR = 'm', + NPY_CHARLTR = 'c', + + /* + * New non-legacy DTypes + */ + NPY_VSTRINGLTR = 'T', + + /* + * Note, we removed `NPY_INTPLTR` due to changing its definition + * to 'n', rather than 'p'. On any typical platform this is the + * same integer. 'n' should be used for the `np.intp` with the same + * size as `size_t` while 'p' remains pointer sized. + * + * 'p', 'P', 'n', and 'N' are valid and defined explicitly + * in `arraytypes.c.src`. + */ + + /* + * These are for dtype 'kinds', not dtype 'typecodes' + * as the above are for. + */ + NPY_GENBOOLLTR ='b', + NPY_SIGNEDLTR = 'i', + NPY_UNSIGNEDLTR = 'u', + NPY_FLOATINGLTR = 'f', + NPY_COMPLEXLTR = 'c', + +}; + +/* + * Changing this may break Numpy API compatibility due to changing offsets in + * PyArray_ArrFuncs, so be careful. Here we have reused the mergesort slot for + * any kind of stable sort, the actual implementation will depend on the data + * type. + * + * Updated in NumPy 2.4 + * + * Updated with new names denoting requirements rather than specifying a + * particular algorithm. All the previous values are reused in a way that + * should be downstream compatible, but the actual algorithms used may be + * different than before. The new approach should be more flexible and easier + * to update. + * + * Names with a leading underscore are private, and should only be used + * internally by NumPy. + * + * NPY_NSORTS remains the same for backwards compatibility, it should not be + * changed. + */ + +typedef enum { + _NPY_SORT_UNDEFINED = -1, + NPY_QUICKSORT = 0, + NPY_HEAPSORT = 1, + NPY_MERGESORT = 2, + NPY_STABLESORT = 2, + // new style names + _NPY_SORT_HEAPSORT = 1, + NPY_SORT_DEFAULT = 0, + NPY_SORT_STABLE = 2, + NPY_SORT_DESCENDING = 4, +} NPY_SORTKIND; +#define NPY_NSORTS (NPY_STABLESORT + 1) + + +typedef enum { + NPY_INTROSELECT=0 +} NPY_SELECTKIND; +#define NPY_NSELECTS (NPY_INTROSELECT + 1) + + +typedef enum { + NPY_SEARCHLEFT=0, + NPY_SEARCHRIGHT=1 +} NPY_SEARCHSIDE; +#define NPY_NSEARCHSIDES (NPY_SEARCHRIGHT + 1) + + +typedef enum { + NPY_NOSCALAR=-1, + NPY_BOOL_SCALAR, + NPY_INTPOS_SCALAR, + NPY_INTNEG_SCALAR, + NPY_FLOAT_SCALAR, + NPY_COMPLEX_SCALAR, + NPY_OBJECT_SCALAR +} NPY_SCALARKIND; +#define NPY_NSCALARKINDS (NPY_OBJECT_SCALAR + 1) + +/* For specifying array memory layout or iteration order */ +typedef enum { + /* Fortran order if inputs are all Fortran, C otherwise */ + NPY_ANYORDER=-1, + /* C order */ + NPY_CORDER=0, + /* Fortran order */ + NPY_FORTRANORDER=1, + /* An order as close to the inputs as possible */ + NPY_KEEPORDER=2 +} NPY_ORDER; + +#if NPY_FEATURE_VERSION >= NPY_2_4_API_VERSION +/* + * check that no values overflow/change during casting + * Used explicitly only in the ArrayMethod creation or resolve_dtypes functions to + * indicate that a same-value cast is supported. In external APIs, use only + * NPY_SAME_VALUE_CASTING + */ +#define NPY_SAME_VALUE_CASTING_FLAG 64 +#endif + +/* For specifying allowed casting in operations which support it */ +typedef enum { + _NPY_ERROR_OCCURRED_IN_CAST = -1, + /* Only allow identical types */ + NPY_NO_CASTING=0, + /* Allow identical and byte swapped types */ + NPY_EQUIV_CASTING=1, + /* Only allow safe casts */ + NPY_SAFE_CASTING=2, + /* Allow safe casts or casts within the same kind */ + NPY_SAME_KIND_CASTING=3, + /* Allow any casts */ + NPY_UNSAFE_CASTING=4, +#if NPY_FEATURE_VERSION >= NPY_2_4_API_VERSION + NPY_SAME_VALUE_CASTING=NPY_UNSAFE_CASTING | NPY_SAME_VALUE_CASTING_FLAG, +#endif +} NPY_CASTING; + +typedef enum { + NPY_CLIP=0, + NPY_WRAP=1, + NPY_RAISE=2 +} NPY_CLIPMODE; + +typedef enum { + NPY_VALID=0, + NPY_SAME=1, + NPY_FULL=2 +} NPY_CORRELATEMODE; + +/* The special not-a-time (NaT) value */ +#define NPY_DATETIME_NAT NPY_MIN_INT64 + +/* + * Upper bound on the length of a DATETIME ISO 8601 string + * YEAR: 21 (64-bit year) + * MONTH: 3 + * DAY: 3 + * HOURS: 3 + * MINUTES: 3 + * SECONDS: 3 + * ATTOSECONDS: 1 + 3*6 + * TIMEZONE: 5 + * NULL TERMINATOR: 1 + */ +#define NPY_DATETIME_MAX_ISO8601_STRLEN (21 + 3*5 + 1 + 3*6 + 6 + 1) + +/* The FR in the unit names stands for frequency */ +typedef enum { + /* Force signed enum type, must be -1 for code compatibility */ + NPY_FR_ERROR = -1, /* error or undetermined */ + + /* Start of valid units */ + NPY_FR_Y = 0, /* Years */ + NPY_FR_M = 1, /* Months */ + NPY_FR_W = 2, /* Weeks */ + /* Gap where 1.6 NPY_FR_B (value 3) was */ + NPY_FR_D = 4, /* Days */ + NPY_FR_h = 5, /* hours */ + NPY_FR_m = 6, /* minutes */ + NPY_FR_s = 7, /* seconds */ + NPY_FR_ms = 8, /* milliseconds */ + NPY_FR_us = 9, /* microseconds */ + NPY_FR_ns = 10, /* nanoseconds */ + NPY_FR_ps = 11, /* picoseconds */ + NPY_FR_fs = 12, /* femtoseconds */ + NPY_FR_as = 13, /* attoseconds */ + NPY_FR_GENERIC = 14 /* unbound units, can convert to anything */ +} NPY_DATETIMEUNIT; + +/* + * NOTE: With the NPY_FR_B gap for 1.6 ABI compatibility, NPY_DATETIME_NUMUNITS + * is technically one more than the actual number of units. + */ +#define NPY_DATETIME_NUMUNITS (NPY_FR_GENERIC + 1) +#define NPY_DATETIME_DEFAULTUNIT NPY_FR_GENERIC + +/* + * Business day conventions for mapping invalid business + * days to valid business days. + */ +typedef enum { + /* Go forward in time to the following business day. */ + NPY_BUSDAY_FORWARD, + NPY_BUSDAY_FOLLOWING = NPY_BUSDAY_FORWARD, + /* Go backward in time to the preceding business day. */ + NPY_BUSDAY_BACKWARD, + NPY_BUSDAY_PRECEDING = NPY_BUSDAY_BACKWARD, + /* + * Go forward in time to the following business day, unless it + * crosses a month boundary, in which case go backward + */ + NPY_BUSDAY_MODIFIEDFOLLOWING, + /* + * Go backward in time to the preceding business day, unless it + * crosses a month boundary, in which case go forward. + */ + NPY_BUSDAY_MODIFIEDPRECEDING, + /* Produce a NaT for non-business days. */ + NPY_BUSDAY_NAT, + /* Raise an exception for non-business days. */ + NPY_BUSDAY_RAISE +} NPY_BUSDAY_ROLL; + + +/************************************************************ + * NumPy Auxiliary Data for inner loops, sort functions, etc. + ************************************************************/ + +/* + * When creating an auxiliary data struct, this should always appear + * as the first member, like this: + * + * typedef struct { + * NpyAuxData base; + * double constant; + * } constant_multiplier_aux_data; + */ +typedef struct NpyAuxData_tag NpyAuxData; + +/* Function pointers for freeing or cloning auxiliary data */ +typedef void (NpyAuxData_FreeFunc) (NpyAuxData *); +typedef NpyAuxData *(NpyAuxData_CloneFunc) (NpyAuxData *); + +struct NpyAuxData_tag { + NpyAuxData_FreeFunc *free; + NpyAuxData_CloneFunc *clone; + /* To allow for a bit of expansion without breaking the ABI */ + void *reserved[2]; +}; + +/* Macros to use for freeing and cloning auxiliary data */ +#define NPY_AUXDATA_FREE(auxdata) \ + do { \ + if ((auxdata) != NULL) { \ + (auxdata)->free(auxdata); \ + } \ + } while(0) +#define NPY_AUXDATA_CLONE(auxdata) \ + ((auxdata)->clone(auxdata)) + +#define NPY_ERR(str) fprintf(stderr, #str); fflush(stderr); +#define NPY_ERR2(str) fprintf(stderr, str); fflush(stderr); + +/* +* Macros to define how array, and dimension/strides data is +* allocated. These should be made private +*/ + +#define NPY_USE_PYMEM 1 + + +#if NPY_USE_PYMEM == 1 +/* use the Raw versions which are safe to call with the GIL released */ +#define PyArray_malloc PyMem_RawMalloc +#define PyArray_free PyMem_RawFree +#define PyArray_realloc PyMem_RawRealloc +#else +#define PyArray_malloc malloc +#define PyArray_free free +#define PyArray_realloc realloc +#endif + +/* Dimensions and strides */ +#define PyDimMem_NEW(size) \ + ((npy_intp *)PyArray_malloc(size*sizeof(npy_intp))) + +#define PyDimMem_FREE(ptr) PyArray_free(ptr) + +#define PyDimMem_RENEW(ptr,size) \ + ((npy_intp *)PyArray_realloc(ptr,size*sizeof(npy_intp))) + +/* forward declaration */ +struct _PyArray_Descr; + +/* These must deal with unaligned and swapped data if necessary */ +typedef PyObject * (PyArray_GetItemFunc) (void *, void *); +typedef int (PyArray_SetItemFunc)(PyObject *, void *, void *); + +typedef void (PyArray_CopySwapNFunc)(void *, npy_intp, void *, npy_intp, + npy_intp, int, void *); + +typedef void (PyArray_CopySwapFunc)(void *, void *, int, void *); +typedef npy_bool (PyArray_NonzeroFunc)(void *, void *); + + +/* + * These assume aligned and notswapped data -- a buffer will be used + * before or contiguous data will be obtained + */ + +typedef int (PyArray_CompareFunc)(const void *, const void *, void *); +typedef int (PyArray_ArgFunc)(void*, npy_intp, npy_intp*, void *); + +typedef void (PyArray_DotFunc)(void *, npy_intp, void *, npy_intp, void *, + npy_intp, void *); + +typedef void (PyArray_VectorUnaryFunc)(void *, void *, npy_intp, void *, + void *); + +/* + * XXX the ignore argument should be removed next time the API version + * is bumped. It used to be the separator. + */ +typedef int (PyArray_ScanFunc)(FILE *fp, void *dptr, + char *ignore, struct _PyArray_Descr *); +typedef int (PyArray_FromStrFunc)(char *s, void *dptr, char **endptr, + struct _PyArray_Descr *); + +typedef int (PyArray_FillFunc)(void *, npy_intp, void *); + +typedef int (PyArray_SortFunc)(void *, npy_intp, void *); +typedef int (PyArray_ArgSortFunc)(void *, npy_intp *, npy_intp, void *); + +typedef int (PyArray_FillWithScalarFunc)(void *, npy_intp, void *, void *); + +typedef int (PyArray_ScalarKindFunc)(void *); + +typedef struct { + npy_intp *ptr; + int len; +} PyArray_Dims; + +typedef struct { + /* + * Functions to cast to most other standard types + * Can have some NULL entries. The types + * DATETIME, TIMEDELTA, and HALF go into the castdict + * even though they are built-in. + */ + PyArray_VectorUnaryFunc *cast[NPY_NTYPES_ABI_COMPATIBLE]; + + /* The next four functions *cannot* be NULL */ + + /* + * Functions to get and set items with standard Python types + * -- not array scalars + */ + PyArray_GetItemFunc *getitem; + PyArray_SetItemFunc *setitem; + + /* + * Copy and/or swap data. Memory areas may not overlap + * Use memmove first if they might + */ + PyArray_CopySwapNFunc *copyswapn; + PyArray_CopySwapFunc *copyswap; + + /* + * Function to compare items + * Can be NULL + */ + PyArray_CompareFunc *compare; + + /* + * Function to select largest + * Can be NULL + */ + PyArray_ArgFunc *argmax; + + /* + * Function to compute dot product + * Can be NULL + */ + PyArray_DotFunc *dotfunc; + + /* + * Function to scan an ASCII file and + * place a single value plus possible separator + * Can be NULL + */ + PyArray_ScanFunc *scanfunc; + + /* + * Function to read a single value from a string + * and adjust the pointer; Can be NULL + */ + PyArray_FromStrFunc *fromstr; + + /* + * Function to determine if data is zero or not + * If NULL a default version is + * used at Registration time. + */ + PyArray_NonzeroFunc *nonzero; + + /* + * Used for arange. Should return 0 on success + * and -1 on failure. + * Can be NULL. + */ + PyArray_FillFunc *fill; + + /* + * Function to fill arrays with scalar values + * Can be NULL + */ + PyArray_FillWithScalarFunc *fillwithscalar; + + /* + * Sorting functions + * Can be NULL + */ + PyArray_SortFunc *sort[NPY_NSORTS]; + PyArray_ArgSortFunc *argsort[NPY_NSORTS]; + + /* + * Dictionary of additional casting functions + * PyArray_VectorUnaryFuncs + * which can be populated to support casting + * to other registered types. Can be NULL + */ + PyObject *castdict; + + /* + * Functions useful for generalizing + * the casting rules. + * Can be NULL; + */ + PyArray_ScalarKindFunc *scalarkind; + int **cancastscalarkindto; + int *cancastto; + + void *_unused1; + void *_unused2; + void *_unused3; + + /* + * Function to select smallest + * Can be NULL + */ + PyArray_ArgFunc *argmin; + +} PyArray_ArrFuncs; + + +/* The item must be reference counted when it is inserted or extracted. */ +#define NPY_ITEM_REFCOUNT 0x01 +/* Same as needing REFCOUNT */ +#define NPY_ITEM_HASOBJECT 0x01 +/* Convert to list for pickling */ +#define NPY_LIST_PICKLE 0x02 +/* The item is a POINTER */ +#define NPY_ITEM_IS_POINTER 0x04 +/* memory needs to be initialized for this data-type */ +#define NPY_NEEDS_INIT 0x08 +/* operations need Python C-API so don't give-up thread. */ +#define NPY_NEEDS_PYAPI 0x10 +/* Use f.getitem when extracting elements of this data-type */ +#define NPY_USE_GETITEM 0x20 +/* Use f.setitem when setting creating 0-d array from this data-type.*/ +#define NPY_USE_SETITEM 0x40 +/* A sticky flag specifically for structured arrays */ +#define NPY_ALIGNED_STRUCT 0x80 + +/* + *These are inherited for global data-type if any data-types in the + * field have them + */ +#define NPY_FROM_FIELDS (NPY_NEEDS_INIT | NPY_LIST_PICKLE | \ + NPY_ITEM_REFCOUNT | NPY_NEEDS_PYAPI) + +#define NPY_OBJECT_DTYPE_FLAGS (NPY_LIST_PICKLE | NPY_USE_GETITEM | \ + NPY_ITEM_IS_POINTER | NPY_ITEM_REFCOUNT | \ + NPY_NEEDS_INIT | NPY_NEEDS_PYAPI) + +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION +/* + * Public version of the Descriptor struct as of 2.x + */ +typedef struct _PyArray_Descr { + PyObject_HEAD + /* + * the type object representing an + * instance of this type -- should not + * be two type_numbers with the same type + * object. + */ + PyTypeObject *typeobj; + /* kind for this type */ + char kind; + /* unique-character representing this type */ + char type; + /* + * '>' (big), '<' (little), '|' + * (not-applicable), or '=' (native). + */ + char byteorder; + /* Former flags flags space (unused) to ensure type_num is stable. */ + char _former_flags; + /* number representing this type */ + int type_num; + /* Space for dtype instance specific flags. */ + npy_uint64 flags; + /* element size (itemsize) for this type */ + npy_intp elsize; + /* alignment needed for this type */ + npy_intp alignment; + /* metadata dict or NULL */ + PyObject *metadata; + /* Cached hash value (-1 if not yet computed). */ + npy_hash_t hash; + /* Unused slot (must be initialized to NULL) for future use */ + void *reserved_null[2]; +} PyArray_Descr; + +#else /* 1.x and 2.x compatible version (only shared fields): */ + +typedef struct _PyArray_Descr { + PyObject_HEAD + PyTypeObject *typeobj; + char kind; + char type; + char byteorder; + char _former_flags; + int type_num; +} PyArray_Descr; + +/* To access modified fields, define the full 2.0 struct: */ +typedef struct { + PyObject_HEAD + PyTypeObject *typeobj; + char kind; + char type; + char byteorder; + char _former_flags; + int type_num; + npy_uint64 flags; + npy_intp elsize; + npy_intp alignment; + PyObject *metadata; + npy_hash_t hash; + void *reserved_null[2]; +} _PyArray_DescrNumPy2; + +#endif /* 1.x and 2.x compatible version */ + +/* + * Semi-private struct with additional field of legacy descriptors (must + * check NPY_DT_is_legacy before casting/accessing). The struct is also not + * valid when running on 1.x (i.e. in public API use). + */ +typedef struct { + PyObject_HEAD + PyTypeObject *typeobj; + char kind; + char type; + char byteorder; + char _former_flags; + int type_num; + npy_uint64 flags; + npy_intp elsize; + npy_intp alignment; + PyObject *metadata; + npy_hash_t hash; + void *reserved_null[2]; + struct _arr_descr *subarray; + PyObject *fields; + PyObject *names; + NpyAuxData *c_metadata; +} _PyArray_LegacyDescr; + + +/* + * Umodified PyArray_Descr struct identical to NumPy 1.x. This struct is + * used as a prototype for registering a new legacy DType. + * It is also used to access the fields in user code running on 1.x. + */ +typedef struct { + PyObject_HEAD + PyTypeObject *typeobj; + char kind; + char type; + char byteorder; + char flags; + int type_num; + int elsize; + int alignment; + struct _arr_descr *subarray; + PyObject *fields; + PyObject *names; + PyArray_ArrFuncs *f; + PyObject *metadata; + NpyAuxData *c_metadata; + npy_hash_t hash; +} PyArray_DescrProto; + + +typedef struct _arr_descr { + PyArray_Descr *base; + PyObject *shape; /* a tuple */ +} PyArray_ArrayDescr; + +/* + * Memory handler structure for array data. + */ +/* The declaration of free differs from PyMemAllocatorEx */ +typedef struct { + void *ctx; + void* (*malloc) (void *ctx, size_t size); + void* (*calloc) (void *ctx, size_t nelem, size_t elsize); + void* (*realloc) (void *ctx, void *ptr, size_t new_size); + void (*free) (void *ctx, void *ptr, size_t size); + /* + * This is the end of the version=1 struct. Only add new fields after + * this line + */ +} PyDataMemAllocator; + +typedef struct { + char name[127]; /* multiple of 64 to keep the struct aligned */ + uint8_t version; /* currently 1 */ + PyDataMemAllocator allocator; +} PyDataMem_Handler; + + +/* + * The main array object structure. + * + * It has been recommended to use the inline functions defined below + * (PyArray_DATA and friends) to access fields here for a number of + * releases. Direct access to the members themselves is deprecated. + * To ensure that your code does not use deprecated access, + * #define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION + * (or NPY_1_8_API_VERSION or higher as required). + */ +/* This struct will be moved to a private header in a future release */ +typedef struct tagPyArrayObject_fields { + PyObject_HEAD + /* Pointer to the raw data buffer */ + char *data; + /* The number of dimensions, also called 'ndim' */ + int nd; + /* The size in each dimension, also called 'shape' */ + npy_intp *dimensions; + /* + * Number of bytes to jump to get to the + * next element in each dimension + */ + npy_intp *strides; + /* + * This object is decref'd upon + * deletion of array. Except in the + * case of WRITEBACKIFCOPY which has + * special handling. + * + * For views it points to the original + * array, collapsed so no chains of + * views occur. + * + * For creation from buffer object it + * points to an object that should be + * decref'd on deletion + * + * For WRITEBACKIFCOPY flag this is an + * array to-be-updated upon calling + * PyArray_ResolveWritebackIfCopy + */ + PyObject *base; + /* Pointer to type structure */ + PyArray_Descr *descr; + /* Flags describing array -- see below */ + int flags; + /* For weak references */ + PyObject *weakreflist; +#if NPY_FEATURE_VERSION >= NPY_1_20_API_VERSION + void *_buffer_info; /* private buffer info, tagged to allow warning */ +#endif + /* + * For malloc/calloc/realloc/free per object + */ +#if NPY_FEATURE_VERSION >= NPY_1_22_API_VERSION + PyObject *mem_handler; +#endif +} PyArrayObject_fields; + +/* + * To hide the implementation details, we only expose + * the Python struct HEAD. + */ +#if !defined(NPY_NO_DEPRECATED_API) || \ + (NPY_NO_DEPRECATED_API < NPY_1_7_API_VERSION) +/* + * Can't put this in npy_deprecated_api.h like the others. + * PyArrayObject field access is deprecated as of NumPy 1.7. + */ +typedef PyArrayObject_fields PyArrayObject; +#else +typedef struct tagPyArrayObject { + PyObject_HEAD +} PyArrayObject; +#endif + +/* + * Removed 2020-Nov-25, NumPy 1.20 + * #define NPY_SIZEOF_PYARRAYOBJECT (sizeof(PyArrayObject_fields)) + * + * The above macro was removed as it gave a false sense of a stable ABI + * with respect to the structures size. If you require a runtime constant, + * you can use `PyArray_Type.tp_basicsize` instead. Otherwise, please + * see the PyArrayObject documentation or ask the NumPy developers for + * information on how to correctly replace the macro in a way that is + * compatible with multiple NumPy versions. + */ + +/* Mirrors buffer object to ptr */ + +typedef struct { + PyObject_HEAD + PyObject *base; + void *ptr; + npy_intp len; + int flags; +} PyArray_Chunk; + +typedef struct { + NPY_DATETIMEUNIT base; + int num; +} PyArray_DatetimeMetaData; + +typedef struct { + NpyAuxData base; + PyArray_DatetimeMetaData meta; +} PyArray_DatetimeDTypeMetaData; + +/* + * This structure contains an exploded view of a date-time value. + * NaT is represented by year == NPY_DATETIME_NAT. + */ +typedef struct { + npy_int64 year; + npy_int32 month, day, hour, min, sec, us, ps, as; +} npy_datetimestruct; + +/* This structure contains an exploded view of a timedelta value */ +typedef struct { + npy_int64 day; + npy_int32 sec, us, ps, as; +} npy_timedeltastruct; + +typedef int (PyArray_FinalizeFunc)(PyArrayObject *, PyObject *); + +/* + * Means c-style contiguous (last index varies the fastest). The data + * elements right after each other. + * + * This flag may be requested in constructor functions. + * This flag may be tested for in PyArray_FLAGS(arr). + */ +#define NPY_ARRAY_C_CONTIGUOUS 0x0001 + +/* + * Set if array is a contiguous Fortran array: the first index varies + * the fastest in memory (strides array is reverse of C-contiguous + * array) + * + * This flag may be requested in constructor functions. + * This flag may be tested for in PyArray_FLAGS(arr). + */ +#define NPY_ARRAY_F_CONTIGUOUS 0x0002 + +/* + * Note: all 0-d arrays are C_CONTIGUOUS and F_CONTIGUOUS. If a + * 1-d array is C_CONTIGUOUS it is also F_CONTIGUOUS. Arrays with + * more then one dimension can be C_CONTIGUOUS and F_CONTIGUOUS + * at the same time if they have either zero or one element. + * A higher dimensional array always has the same contiguity flags as + * `array.squeeze()`; dimensions with `array.shape[dimension] == 1` are + * effectively ignored when checking for contiguity. + */ + +/* + * If set, the array owns the data: it will be free'd when the array + * is deleted. + * + * This flag may be tested for in PyArray_FLAGS(arr). + */ +#define NPY_ARRAY_OWNDATA 0x0004 + +/* + * An array never has the next four set; they're only used as parameter + * flags to the various FromAny functions + * + * This flag may be requested in constructor functions. + */ + +/* Cause a cast to occur regardless of whether or not it is safe. */ +#define NPY_ARRAY_FORCECAST 0x0010 + +/* + * Always copy the array. Returned arrays are always CONTIGUOUS, + * ALIGNED, and WRITEABLE. See also: NPY_ARRAY_ENSURENOCOPY = 0x4000. + * + * This flag may be requested in constructor functions. + */ +#define NPY_ARRAY_ENSURECOPY 0x0020 + +/* + * Make sure the returned array is a base-class ndarray + * + * This flag may be requested in constructor functions. + */ +#define NPY_ARRAY_ENSUREARRAY 0x0040 + +/* + * Make sure that the strides are in units of the element size Needed + * for some operations with record-arrays. + * + * This flag may be requested in constructor functions. + */ +#define NPY_ARRAY_ELEMENTSTRIDES 0x0080 + +/* + * Array data is aligned on the appropriate memory address for the type + * stored according to how the compiler would align things (e.g., an + * array of integers (4 bytes each) starts on a memory address that's + * a multiple of 4) + * + * This flag may be requested in constructor functions. + * This flag may be tested for in PyArray_FLAGS(arr). + */ +#define NPY_ARRAY_ALIGNED 0x0100 + +/* + * Array data has the native endianness + * + * This flag may be requested in constructor functions. + */ +#define NPY_ARRAY_NOTSWAPPED 0x0200 + +/* + * Array data is writeable + * + * This flag may be requested in constructor functions. + * This flag may be tested for in PyArray_FLAGS(arr). + */ +#define NPY_ARRAY_WRITEABLE 0x0400 + +/* + * If this flag is set, then base contains a pointer to an array of + * the same size that should be updated with the current contents of + * this array when PyArray_ResolveWritebackIfCopy is called. + * + * This flag may be requested in constructor functions. + * This flag may be tested for in PyArray_FLAGS(arr). + */ +#define NPY_ARRAY_WRITEBACKIFCOPY 0x2000 + +/* + * No copy may be made while converting from an object/array (result is a view) + * + * This flag may be requested in constructor functions. + */ +#define NPY_ARRAY_ENSURENOCOPY 0x4000 + +/* + * NOTE: there are also internal flags defined in multiarray/arrayobject.h, + * which start at bit 31 and work down. + */ + +#define NPY_ARRAY_BEHAVED (NPY_ARRAY_ALIGNED | \ + NPY_ARRAY_WRITEABLE) +#define NPY_ARRAY_BEHAVED_NS (NPY_ARRAY_ALIGNED | \ + NPY_ARRAY_WRITEABLE | \ + NPY_ARRAY_NOTSWAPPED) +#define NPY_ARRAY_CARRAY (NPY_ARRAY_C_CONTIGUOUS | \ + NPY_ARRAY_BEHAVED) +#define NPY_ARRAY_CARRAY_RO (NPY_ARRAY_C_CONTIGUOUS | \ + NPY_ARRAY_ALIGNED) +#define NPY_ARRAY_FARRAY (NPY_ARRAY_F_CONTIGUOUS | \ + NPY_ARRAY_BEHAVED) +#define NPY_ARRAY_FARRAY_RO (NPY_ARRAY_F_CONTIGUOUS | \ + NPY_ARRAY_ALIGNED) +#define NPY_ARRAY_DEFAULT (NPY_ARRAY_CARRAY) +#define NPY_ARRAY_IN_ARRAY (NPY_ARRAY_CARRAY_RO) +#define NPY_ARRAY_OUT_ARRAY (NPY_ARRAY_CARRAY) +#define NPY_ARRAY_INOUT_ARRAY (NPY_ARRAY_CARRAY) +#define NPY_ARRAY_INOUT_ARRAY2 (NPY_ARRAY_CARRAY | \ + NPY_ARRAY_WRITEBACKIFCOPY) +#define NPY_ARRAY_IN_FARRAY (NPY_ARRAY_FARRAY_RO) +#define NPY_ARRAY_OUT_FARRAY (NPY_ARRAY_FARRAY) +#define NPY_ARRAY_INOUT_FARRAY (NPY_ARRAY_FARRAY) +#define NPY_ARRAY_INOUT_FARRAY2 (NPY_ARRAY_FARRAY | \ + NPY_ARRAY_WRITEBACKIFCOPY) + +#define NPY_ARRAY_UPDATE_ALL (NPY_ARRAY_C_CONTIGUOUS | \ + NPY_ARRAY_F_CONTIGUOUS | \ + NPY_ARRAY_ALIGNED) + +/* This flag is for the array interface, not PyArrayObject */ +#define NPY_ARR_HAS_DESCR 0x0800 + + + + +/* + * Size of internal buffers used for alignment Make BUFSIZE a multiple + * of sizeof(npy_cdouble) -- usually 16 so that ufunc buffers are aligned + */ +#define NPY_MIN_BUFSIZE ((int)sizeof(npy_cdouble)) +#define NPY_MAX_BUFSIZE (((int)sizeof(npy_cdouble))*1000000) +#define NPY_BUFSIZE 8192 +/* buffer stress test size: */ +/*#define NPY_BUFSIZE 17*/ + +/* + * C API: consists of Macros and functions. The MACROS are defined + * here. + */ + + +#define PyArray_ISCONTIGUOUS(m) PyArray_CHKFLAGS((m), NPY_ARRAY_C_CONTIGUOUS) +#define PyArray_ISWRITEABLE(m) PyArray_CHKFLAGS((m), NPY_ARRAY_WRITEABLE) +#define PyArray_ISALIGNED(m) PyArray_CHKFLAGS((m), NPY_ARRAY_ALIGNED) + +#define PyArray_IS_C_CONTIGUOUS(m) PyArray_CHKFLAGS((m), NPY_ARRAY_C_CONTIGUOUS) +#define PyArray_IS_F_CONTIGUOUS(m) PyArray_CHKFLAGS((m), NPY_ARRAY_F_CONTIGUOUS) + +/* the variable is used in some places, so always define it */ +#define NPY_BEGIN_THREADS_DEF PyThreadState *_save=NULL; +#if NPY_ALLOW_THREADS +#define NPY_BEGIN_ALLOW_THREADS Py_BEGIN_ALLOW_THREADS +#define NPY_END_ALLOW_THREADS Py_END_ALLOW_THREADS +#define NPY_BEGIN_THREADS do {_save = PyEval_SaveThread();} while (0); +#define NPY_END_THREADS do { if (_save) \ + { PyEval_RestoreThread(_save); _save = NULL;} } while (0); +#define NPY_BEGIN_THREADS_THRESHOLDED(loop_size) do { if ((loop_size) > 500) \ + { _save = PyEval_SaveThread();} } while (0); + + +#define NPY_ALLOW_C_API_DEF PyGILState_STATE __save__; +#define NPY_ALLOW_C_API do {__save__ = PyGILState_Ensure();} while (0); +#define NPY_DISABLE_C_API do {PyGILState_Release(__save__);} while (0); +#else +#define NPY_BEGIN_ALLOW_THREADS +#define NPY_END_ALLOW_THREADS +#define NPY_BEGIN_THREADS +#define NPY_END_THREADS +#define NPY_BEGIN_THREADS_THRESHOLDED(loop_size) +#define NPY_BEGIN_THREADS_DESCR(dtype) +#define NPY_END_THREADS_DESCR(dtype) +#define NPY_ALLOW_C_API_DEF +#define NPY_ALLOW_C_API +#define NPY_DISABLE_C_API +#endif + +/********************************** + * The nditer object, added in 1.6 + **********************************/ + +/* The actual structure of the iterator is an internal detail */ +typedef struct NpyIter_InternalOnly NpyIter; + +/* Iterator function pointers that may be specialized */ +typedef int (NpyIter_IterNextFunc)(NpyIter *iter); +typedef void (NpyIter_GetMultiIndexFunc)(NpyIter *iter, + npy_intp *outcoords); + +/*** Global flags that may be passed to the iterator constructors ***/ + +/* Track an index representing C order */ +#define NPY_ITER_C_INDEX 0x00000001 +/* Track an index representing Fortran order */ +#define NPY_ITER_F_INDEX 0x00000002 +/* Track a multi-index */ +#define NPY_ITER_MULTI_INDEX 0x00000004 +/* User code external to the iterator does the 1-dimensional innermost loop */ +#define NPY_ITER_EXTERNAL_LOOP 0x00000008 +/* Convert all the operands to a common data type */ +#define NPY_ITER_COMMON_DTYPE 0x00000010 +/* Operands may hold references, requiring API access during iteration */ +#define NPY_ITER_REFS_OK 0x00000020 +/* Zero-sized operands should be permitted, iteration checks IterSize for 0 */ +#define NPY_ITER_ZEROSIZE_OK 0x00000040 +/* Permits reductions (size-0 stride with dimension size > 1) */ +#define NPY_ITER_REDUCE_OK 0x00000080 +/* Enables sub-range iteration */ +#define NPY_ITER_RANGED 0x00000100 +/* Enables buffering */ +#define NPY_ITER_BUFFERED 0x00000200 +/* When buffering is enabled, grows the inner loop if possible */ +#define NPY_ITER_GROWINNER 0x00000400 +/* Delay allocation of buffers until first Reset* call */ +#define NPY_ITER_DELAY_BUFALLOC 0x00000800 +/* When NPY_KEEPORDER is specified, disable reversing negative-stride axes */ +#define NPY_ITER_DONT_NEGATE_STRIDES 0x00001000 +/* + * If output operands overlap with other operands (based on heuristics that + * has false positives but no false negatives), make temporary copies to + * eliminate overlap. + */ +#define NPY_ITER_COPY_IF_OVERLAP 0x00002000 + +/*** Per-operand flags that may be passed to the iterator constructors ***/ + +/* The operand will be read from and written to */ +#define NPY_ITER_READWRITE 0x00010000 +/* The operand will only be read from */ +#define NPY_ITER_READONLY 0x00020000 +/* The operand will only be written to */ +#define NPY_ITER_WRITEONLY 0x00040000 +/* The operand's data must be in native byte order */ +#define NPY_ITER_NBO 0x00080000 +/* The operand's data must be aligned */ +#define NPY_ITER_ALIGNED 0x00100000 +/* The operand's data must be contiguous (within the inner loop) */ +#define NPY_ITER_CONTIG 0x00200000 +/* The operand may be copied to satisfy requirements */ +#define NPY_ITER_COPY 0x00400000 +/* The operand may be copied with WRITEBACKIFCOPY to satisfy requirements */ +#define NPY_ITER_UPDATEIFCOPY 0x00800000 +/* Allocate the operand if it is NULL */ +#define NPY_ITER_ALLOCATE 0x01000000 +/* If an operand is allocated, don't use any subtype */ +#define NPY_ITER_NO_SUBTYPE 0x02000000 +/* This is a virtual array slot, operand is NULL but temporary data is there */ +#define NPY_ITER_VIRTUAL 0x04000000 +/* Require that the dimension match the iterator dimensions exactly */ +#define NPY_ITER_NO_BROADCAST 0x08000000 +/* A mask is being used on this array, affects buffer -> array copy */ +#define NPY_ITER_WRITEMASKED 0x10000000 +/* This array is the mask for all WRITEMASKED operands */ +#define NPY_ITER_ARRAYMASK 0x20000000 +/* Assume iterator order data access for COPY_IF_OVERLAP */ +#define NPY_ITER_OVERLAP_ASSUME_ELEMENTWISE 0x40000000 + +#define NPY_ITER_GLOBAL_FLAGS 0x0000ffff +#define NPY_ITER_PER_OP_FLAGS 0xffff0000 + + +/***************************** + * Basic iterator object + *****************************/ + +/* FWD declaration */ +typedef struct PyArrayIterObject_tag PyArrayIterObject; + +/* + * type of the function which translates a set of coordinates to a + * pointer to the data + */ +typedef char* (*npy_iter_get_dataptr_t)( + PyArrayIterObject* iter, const npy_intp*); + +struct PyArrayIterObject_tag { + PyObject_HEAD + int nd_m1; /* number of dimensions - 1 */ + npy_intp index, size; + npy_intp coordinates[NPY_MAXDIMS_LEGACY_ITERS];/* N-dimensional loop */ + npy_intp dims_m1[NPY_MAXDIMS_LEGACY_ITERS]; /* ao->dimensions - 1 */ + npy_intp strides[NPY_MAXDIMS_LEGACY_ITERS]; /* ao->strides or fake */ + npy_intp backstrides[NPY_MAXDIMS_LEGACY_ITERS];/* how far to jump back */ + npy_intp factors[NPY_MAXDIMS_LEGACY_ITERS]; /* shape factors */ + PyArrayObject *ao; + char *dataptr; /* pointer to current item*/ + npy_bool contiguous; + + npy_intp bounds[NPY_MAXDIMS_LEGACY_ITERS][2]; + npy_intp limits[NPY_MAXDIMS_LEGACY_ITERS][2]; + npy_intp limits_sizes[NPY_MAXDIMS_LEGACY_ITERS]; + npy_iter_get_dataptr_t translate; +} ; + + +/* Iterator API */ +#define PyArrayIter_Check(op) PyObject_TypeCheck((op), &PyArrayIter_Type) + +#define _PyAIT(it) ((PyArrayIterObject *)(it)) +#define PyArray_ITER_RESET(it) do { \ + _PyAIT(it)->index = 0; \ + _PyAIT(it)->dataptr = PyArray_BYTES(_PyAIT(it)->ao); \ + memset(_PyAIT(it)->coordinates, 0, \ + (_PyAIT(it)->nd_m1+1)*sizeof(npy_intp)); \ +} while (0) + +#define _PyArray_ITER_NEXT1(it) do { \ + (it)->dataptr += _PyAIT(it)->strides[0]; \ + (it)->coordinates[0]++; \ +} while (0) + +#define _PyArray_ITER_NEXT2(it) do { \ + if ((it)->coordinates[1] < (it)->dims_m1[1]) { \ + (it)->coordinates[1]++; \ + (it)->dataptr += (it)->strides[1]; \ + } \ + else { \ + (it)->coordinates[1] = 0; \ + (it)->coordinates[0]++; \ + (it)->dataptr += (it)->strides[0] - \ + (it)->backstrides[1]; \ + } \ +} while (0) + +#define PyArray_ITER_NEXT(it) do { \ + _PyAIT(it)->index++; \ + if (_PyAIT(it)->nd_m1 == 0) { \ + _PyArray_ITER_NEXT1(_PyAIT(it)); \ + } \ + else if (_PyAIT(it)->contiguous) \ + _PyAIT(it)->dataptr += PyArray_ITEMSIZE(_PyAIT(it)->ao); \ + else if (_PyAIT(it)->nd_m1 == 1) { \ + _PyArray_ITER_NEXT2(_PyAIT(it)); \ + } \ + else { \ + int __npy_i; \ + for (__npy_i=_PyAIT(it)->nd_m1; __npy_i >= 0; __npy_i--) { \ + if (_PyAIT(it)->coordinates[__npy_i] < \ + _PyAIT(it)->dims_m1[__npy_i]) { \ + _PyAIT(it)->coordinates[__npy_i]++; \ + _PyAIT(it)->dataptr += \ + _PyAIT(it)->strides[__npy_i]; \ + break; \ + } \ + else { \ + _PyAIT(it)->coordinates[__npy_i] = 0; \ + _PyAIT(it)->dataptr -= \ + _PyAIT(it)->backstrides[__npy_i]; \ + } \ + } \ + } \ +} while (0) + +#define PyArray_ITER_GOTO(it, destination) do { \ + int __npy_i; \ + _PyAIT(it)->index = 0; \ + _PyAIT(it)->dataptr = PyArray_BYTES(_PyAIT(it)->ao); \ + for (__npy_i = _PyAIT(it)->nd_m1; __npy_i>=0; __npy_i--) { \ + if (destination[__npy_i] < 0) { \ + destination[__npy_i] += \ + _PyAIT(it)->dims_m1[__npy_i]+1; \ + } \ + _PyAIT(it)->dataptr += destination[__npy_i] * \ + _PyAIT(it)->strides[__npy_i]; \ + _PyAIT(it)->coordinates[__npy_i] = \ + destination[__npy_i]; \ + _PyAIT(it)->index += destination[__npy_i] * \ + ( __npy_i==_PyAIT(it)->nd_m1 ? 1 : \ + _PyAIT(it)->dims_m1[__npy_i+1]+1) ; \ + } \ +} while (0) + +#define PyArray_ITER_GOTO1D(it, ind) do { \ + int __npy_i; \ + npy_intp __npy_ind = (npy_intp)(ind); \ + if (__npy_ind < 0) __npy_ind += _PyAIT(it)->size; \ + _PyAIT(it)->index = __npy_ind; \ + if (_PyAIT(it)->nd_m1 == 0) { \ + _PyAIT(it)->dataptr = PyArray_BYTES(_PyAIT(it)->ao) + \ + __npy_ind * _PyAIT(it)->strides[0]; \ + } \ + else if (_PyAIT(it)->contiguous) \ + _PyAIT(it)->dataptr = PyArray_BYTES(_PyAIT(it)->ao) + \ + __npy_ind * PyArray_ITEMSIZE(_PyAIT(it)->ao); \ + else { \ + _PyAIT(it)->dataptr = PyArray_BYTES(_PyAIT(it)->ao); \ + for (__npy_i = 0; __npy_i<=_PyAIT(it)->nd_m1; \ + __npy_i++) { \ + _PyAIT(it)->coordinates[__npy_i] = \ + (__npy_ind / _PyAIT(it)->factors[__npy_i]); \ + _PyAIT(it)->dataptr += \ + (__npy_ind / _PyAIT(it)->factors[__npy_i]) \ + * _PyAIT(it)->strides[__npy_i]; \ + __npy_ind %= _PyAIT(it)->factors[__npy_i]; \ + } \ + } \ +} while (0) + +#define PyArray_ITER_DATA(it) ((void *)(_PyAIT(it)->dataptr)) + +#define PyArray_ITER_NOTDONE(it) (_PyAIT(it)->index < _PyAIT(it)->size) + + +/* + * Any object passed to PyArray_Broadcast must be binary compatible + * with this structure. + */ + +typedef struct { + PyObject_HEAD + int numiter; /* number of iters */ + npy_intp size; /* broadcasted size */ + npy_intp index; /* current index */ + int nd; /* number of dims */ + npy_intp dimensions[NPY_MAXDIMS_LEGACY_ITERS]; /* dimensions */ + /* + * Space for the individual iterators, do not specify size publicly + * to allow changing it more easily. + * One reason is that Cython uses this for checks and only allows + * growing structs (as of Cython 3.0.6). It also allows NPY_MAXARGS + * to be runtime dependent. + */ +#if (defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD) + PyArrayIterObject *iters[64]; +#elif defined(__cplusplus) + /* + * C++ doesn't strictly support flexible members and gives compilers + * warnings (pedantic only), so we lie. We can't make it 64 because + * then Cython is unhappy (larger struct at runtime is OK smaller not). + */ + PyArrayIterObject *iters[32]; +#else + PyArrayIterObject *iters[]; +#endif +} PyArrayMultiIterObject; + +#define _PyMIT(m) ((PyArrayMultiIterObject *)(m)) +#define PyArray_MultiIter_RESET(multi) do { \ + int __npy_mi; \ + _PyMIT(multi)->index = 0; \ + for (__npy_mi=0; __npy_mi < _PyMIT(multi)->numiter; __npy_mi++) { \ + PyArray_ITER_RESET(_PyMIT(multi)->iters[__npy_mi]); \ + } \ +} while (0) + +#define PyArray_MultiIter_NEXT(multi) do { \ + int __npy_mi; \ + _PyMIT(multi)->index++; \ + for (__npy_mi=0; __npy_mi < _PyMIT(multi)->numiter; __npy_mi++) { \ + PyArray_ITER_NEXT(_PyMIT(multi)->iters[__npy_mi]); \ + } \ +} while (0) + +#define PyArray_MultiIter_GOTO(multi, dest) do { \ + int __npy_mi; \ + for (__npy_mi=0; __npy_mi < _PyMIT(multi)->numiter; __npy_mi++) { \ + PyArray_ITER_GOTO(_PyMIT(multi)->iters[__npy_mi], dest); \ + } \ + _PyMIT(multi)->index = _PyMIT(multi)->iters[0]->index; \ +} while (0) + +#define PyArray_MultiIter_GOTO1D(multi, ind) do { \ + int __npy_mi; \ + for (__npy_mi=0; __npy_mi < _PyMIT(multi)->numiter; __npy_mi++) { \ + PyArray_ITER_GOTO1D(_PyMIT(multi)->iters[__npy_mi], ind); \ + } \ + _PyMIT(multi)->index = _PyMIT(multi)->iters[0]->index; \ +} while (0) + +#define PyArray_MultiIter_DATA(multi, i) \ + ((void *)(_PyMIT(multi)->iters[i]->dataptr)) + +#define PyArray_MultiIter_NEXTi(multi, i) \ + PyArray_ITER_NEXT(_PyMIT(multi)->iters[i]) + +#define PyArray_MultiIter_NOTDONE(multi) \ + (_PyMIT(multi)->index < _PyMIT(multi)->size) + + +static NPY_INLINE int +PyArray_MultiIter_NUMITER(PyArrayMultiIterObject *multi) +{ + return multi->numiter; +} + + +static NPY_INLINE npy_intp +PyArray_MultiIter_SIZE(PyArrayMultiIterObject *multi) +{ + return multi->size; +} + + +static NPY_INLINE npy_intp +PyArray_MultiIter_INDEX(PyArrayMultiIterObject *multi) +{ + return multi->index; +} + + +static NPY_INLINE int +PyArray_MultiIter_NDIM(PyArrayMultiIterObject *multi) +{ + return multi->nd; +} + + +static NPY_INLINE npy_intp * +PyArray_MultiIter_DIMS(PyArrayMultiIterObject *multi) +{ + return multi->dimensions; +} + + +static NPY_INLINE void ** +PyArray_MultiIter_ITERS(PyArrayMultiIterObject *multi) +{ + return (void**)multi->iters; +} + + +enum { + NPY_NEIGHBORHOOD_ITER_ZERO_PADDING, + NPY_NEIGHBORHOOD_ITER_ONE_PADDING, + NPY_NEIGHBORHOOD_ITER_CONSTANT_PADDING, + NPY_NEIGHBORHOOD_ITER_CIRCULAR_PADDING, + NPY_NEIGHBORHOOD_ITER_MIRROR_PADDING +}; + +typedef struct { + PyObject_HEAD + + /* + * PyArrayIterObject part: keep this in this exact order + */ + int nd_m1; /* number of dimensions - 1 */ + npy_intp index, size; + npy_intp coordinates[NPY_MAXDIMS_LEGACY_ITERS];/* N-dimensional loop */ + npy_intp dims_m1[NPY_MAXDIMS_LEGACY_ITERS]; /* ao->dimensions - 1 */ + npy_intp strides[NPY_MAXDIMS_LEGACY_ITERS]; /* ao->strides or fake */ + npy_intp backstrides[NPY_MAXDIMS_LEGACY_ITERS];/* how far to jump back */ + npy_intp factors[NPY_MAXDIMS_LEGACY_ITERS]; /* shape factors */ + PyArrayObject *ao; + char *dataptr; /* pointer to current item*/ + npy_bool contiguous; + + npy_intp bounds[NPY_MAXDIMS_LEGACY_ITERS][2]; + npy_intp limits[NPY_MAXDIMS_LEGACY_ITERS][2]; + npy_intp limits_sizes[NPY_MAXDIMS_LEGACY_ITERS]; + npy_iter_get_dataptr_t translate; + + /* + * New members + */ + npy_intp nd; + + /* Dimensions is the dimension of the array */ + npy_intp dimensions[NPY_MAXDIMS_LEGACY_ITERS]; + + /* + * Neighborhood points coordinates are computed relatively to the + * point pointed by _internal_iter + */ + PyArrayIterObject* _internal_iter; + /* + * To keep a reference to the representation of the constant value + * for constant padding + */ + char* constant; + + int mode; +} PyArrayNeighborhoodIterObject; + +/* + * Neighborhood iterator API + */ + +/* General: those work for any mode */ +static inline int +PyArrayNeighborhoodIter_Reset(PyArrayNeighborhoodIterObject* iter); +static inline int +PyArrayNeighborhoodIter_Next(PyArrayNeighborhoodIterObject* iter); +#if 0 +static inline int +PyArrayNeighborhoodIter_Next2D(PyArrayNeighborhoodIterObject* iter); +#endif + +/* + * Include inline implementations - functions defined there are not + * considered public API + */ +#define NUMPY_CORE_INCLUDE_NUMPY__NEIGHBORHOOD_IMP_H_ +#include "_neighborhood_iterator_imp.h" +#undef NUMPY_CORE_INCLUDE_NUMPY__NEIGHBORHOOD_IMP_H_ + + + +/* The default array type */ +#define NPY_DEFAULT_TYPE NPY_DOUBLE +/* default integer type defined in npy_2_compat header */ + +/* + * All sorts of useful ways to look into a PyArrayObject. It is recommended + * to use PyArrayObject * objects instead of always casting from PyObject *, + * for improved type checking. + * + * In many cases here the macro versions of the accessors are deprecated, + * but can't be immediately changed to inline functions because the + * preexisting macros accept PyObject * and do automatic casts. Inline + * functions accepting PyArrayObject * provides for some compile-time + * checking of correctness when working with these objects in C. + */ + +#define PyArray_ISONESEGMENT(m) (PyArray_CHKFLAGS(m, NPY_ARRAY_C_CONTIGUOUS) || \ + PyArray_CHKFLAGS(m, NPY_ARRAY_F_CONTIGUOUS)) + +#define PyArray_ISFORTRAN(m) (PyArray_CHKFLAGS(m, NPY_ARRAY_F_CONTIGUOUS) && \ + (!PyArray_CHKFLAGS(m, NPY_ARRAY_C_CONTIGUOUS))) + +#define PyArray_FORTRAN_IF(m) ((PyArray_CHKFLAGS(m, NPY_ARRAY_F_CONTIGUOUS) ? \ + NPY_ARRAY_F_CONTIGUOUS : 0)) + +static inline int +PyArray_NDIM(const PyArrayObject *arr) +{ + return ((PyArrayObject_fields *)arr)->nd; +} + +static inline void * +PyArray_DATA(const PyArrayObject *arr) +{ + return ((PyArrayObject_fields *)arr)->data; +} + +static inline char * +PyArray_BYTES(const PyArrayObject *arr) +{ + return ((PyArrayObject_fields *)arr)->data; +} + +static inline npy_intp * +PyArray_DIMS(const PyArrayObject *arr) +{ + return ((PyArrayObject_fields *)arr)->dimensions; +} + +static inline npy_intp * +PyArray_STRIDES(const PyArrayObject *arr) +{ + return ((PyArrayObject_fields *)arr)->strides; +} + +static inline npy_intp +PyArray_DIM(const PyArrayObject *arr, int idim) +{ + return ((PyArrayObject_fields *)arr)->dimensions[idim]; +} + +static inline npy_intp +PyArray_STRIDE(const PyArrayObject *arr, int istride) +{ + return ((PyArrayObject_fields *)arr)->strides[istride]; +} + +static inline NPY_RETURNS_BORROWED_REF PyObject * +PyArray_BASE(const PyArrayObject *arr) +{ + return ((PyArrayObject_fields *)arr)->base; +} + +static inline NPY_RETURNS_BORROWED_REF PyArray_Descr * +PyArray_DESCR(const PyArrayObject *arr) +{ + return ((PyArrayObject_fields *)arr)->descr; +} + +static inline int +PyArray_FLAGS(const PyArrayObject *arr) +{ + return ((PyArrayObject_fields *)arr)->flags; +} + + +static inline int +PyArray_TYPE(const PyArrayObject *arr) +{ + return ((PyArrayObject_fields *)arr)->descr->type_num; +} + +static inline int +PyArray_CHKFLAGS(const PyArrayObject *arr, int flags) +{ + return (PyArray_FLAGS(arr) & flags) == flags; +} + +static inline PyArray_Descr * +PyArray_DTYPE(const PyArrayObject *arr) +{ + return ((PyArrayObject_fields *)arr)->descr; +} + +static inline npy_intp * +PyArray_SHAPE(const PyArrayObject *arr) +{ + return ((PyArrayObject_fields *)arr)->dimensions; +} + +/* + * Enables the specified array flags. Does no checking, + * assumes you know what you're doing. + */ +static inline void +PyArray_ENABLEFLAGS(PyArrayObject *arr, int flags) +{ + ((PyArrayObject_fields *)arr)->flags |= flags; +} + +/* + * Clears the specified array flags. Does no checking, + * assumes you know what you're doing. + */ +static inline void +PyArray_CLEARFLAGS(PyArrayObject *arr, int flags) +{ + ((PyArrayObject_fields *)arr)->flags &= ~flags; +} + +#if NPY_FEATURE_VERSION >= NPY_1_22_API_VERSION + static inline NPY_RETURNS_BORROWED_REF PyObject * + PyArray_HANDLER(PyArrayObject *arr) + { + return ((PyArrayObject_fields *)arr)->mem_handler; + } +#endif + +#define PyTypeNum_ISBOOL(type) ((type) == NPY_BOOL) + +#define PyTypeNum_ISUNSIGNED(type) (((type) == NPY_UBYTE) || \ + ((type) == NPY_USHORT) || \ + ((type) == NPY_UINT) || \ + ((type) == NPY_ULONG) || \ + ((type) == NPY_ULONGLONG)) + +#define PyTypeNum_ISSIGNED(type) (((type) == NPY_BYTE) || \ + ((type) == NPY_SHORT) || \ + ((type) == NPY_INT) || \ + ((type) == NPY_LONG) || \ + ((type) == NPY_LONGLONG)) + +#define PyTypeNum_ISINTEGER(type) (((type) >= NPY_BYTE) && \ + ((type) <= NPY_ULONGLONG)) + +#define PyTypeNum_ISFLOAT(type) ((((type) >= NPY_FLOAT) && \ + ((type) <= NPY_LONGDOUBLE)) || \ + ((type) == NPY_HALF)) + +#define PyTypeNum_ISNUMBER(type) (((type) <= NPY_CLONGDOUBLE) || \ + ((type) == NPY_HALF)) + +#define PyTypeNum_ISSTRING(type) (((type) == NPY_STRING) || \ + ((type) == NPY_UNICODE)) + +#define PyTypeNum_ISCOMPLEX(type) (((type) >= NPY_CFLOAT) && \ + ((type) <= NPY_CLONGDOUBLE)) + +#define PyTypeNum_ISFLEXIBLE(type) (((type) >=NPY_STRING) && \ + ((type) <=NPY_VOID)) + +#define PyTypeNum_ISDATETIME(type) (((type) >=NPY_DATETIME) && \ + ((type) <=NPY_TIMEDELTA)) + +#define PyTypeNum_ISUSERDEF(type) (((type) >= NPY_USERDEF) && \ + ((type) < NPY_USERDEF+ \ + NPY_NUMUSERTYPES)) + +#define PyTypeNum_ISEXTENDED(type) (PyTypeNum_ISFLEXIBLE(type) || \ + PyTypeNum_ISUSERDEF(type)) + +#define PyTypeNum_ISOBJECT(type) ((type) == NPY_OBJECT) + + +#define PyDataType_ISLEGACY(dtype) ((dtype)->type_num < NPY_VSTRING && ((dtype)->type_num >= 0)) +#define PyDataType_ISBOOL(obj) PyTypeNum_ISBOOL(((PyArray_Descr*)(obj))->type_num) +#define PyDataType_ISUNSIGNED(obj) PyTypeNum_ISUNSIGNED(((PyArray_Descr*)(obj))->type_num) +#define PyDataType_ISSIGNED(obj) PyTypeNum_ISSIGNED(((PyArray_Descr*)(obj))->type_num) +#define PyDataType_ISINTEGER(obj) PyTypeNum_ISINTEGER(((PyArray_Descr*)(obj))->type_num ) +#define PyDataType_ISFLOAT(obj) PyTypeNum_ISFLOAT(((PyArray_Descr*)(obj))->type_num) +#define PyDataType_ISNUMBER(obj) PyTypeNum_ISNUMBER(((PyArray_Descr*)(obj))->type_num) +#define PyDataType_ISSTRING(obj) PyTypeNum_ISSTRING(((PyArray_Descr*)(obj))->type_num) +#define PyDataType_ISCOMPLEX(obj) PyTypeNum_ISCOMPLEX(((PyArray_Descr*)(obj))->type_num) +#define PyDataType_ISFLEXIBLE(obj) PyTypeNum_ISFLEXIBLE(((PyArray_Descr*)(obj))->type_num) +#define PyDataType_ISDATETIME(obj) PyTypeNum_ISDATETIME(((PyArray_Descr*)(obj))->type_num) +#define PyDataType_ISUSERDEF(obj) PyTypeNum_ISUSERDEF(((PyArray_Descr*)(obj))->type_num) +#define PyDataType_ISEXTENDED(obj) PyTypeNum_ISEXTENDED(((PyArray_Descr*)(obj))->type_num) +#define PyDataType_ISOBJECT(obj) PyTypeNum_ISOBJECT(((PyArray_Descr*)(obj))->type_num) +#define PyDataType_MAKEUNSIZED(dtype) ((dtype)->elsize = 0) +/* + * PyDataType_* FLAGS, FLACHK, REFCHK, HASFIELDS, HASSUBARRAY, UNSIZED, + * SUBARRAY, NAMES, FIELDS, C_METADATA, and METADATA require version specific + * lookup and are defined in npy_2_compat.h. + */ + + +#define PyArray_ISBOOL(obj) PyTypeNum_ISBOOL(PyArray_TYPE(obj)) +#define PyArray_ISUNSIGNED(obj) PyTypeNum_ISUNSIGNED(PyArray_TYPE(obj)) +#define PyArray_ISSIGNED(obj) PyTypeNum_ISSIGNED(PyArray_TYPE(obj)) +#define PyArray_ISINTEGER(obj) PyTypeNum_ISINTEGER(PyArray_TYPE(obj)) +#define PyArray_ISFLOAT(obj) PyTypeNum_ISFLOAT(PyArray_TYPE(obj)) +#define PyArray_ISNUMBER(obj) PyTypeNum_ISNUMBER(PyArray_TYPE(obj)) +#define PyArray_ISSTRING(obj) PyTypeNum_ISSTRING(PyArray_TYPE(obj)) +#define PyArray_ISCOMPLEX(obj) PyTypeNum_ISCOMPLEX(PyArray_TYPE(obj)) +#define PyArray_ISFLEXIBLE(obj) PyTypeNum_ISFLEXIBLE(PyArray_TYPE(obj)) +#define PyArray_ISDATETIME(obj) PyTypeNum_ISDATETIME(PyArray_TYPE(obj)) +#define PyArray_ISUSERDEF(obj) PyTypeNum_ISUSERDEF(PyArray_TYPE(obj)) +#define PyArray_ISEXTENDED(obj) PyTypeNum_ISEXTENDED(PyArray_TYPE(obj)) +#define PyArray_ISOBJECT(obj) PyTypeNum_ISOBJECT(PyArray_TYPE(obj)) +#define PyArray_HASFIELDS(obj) PyDataType_HASFIELDS(PyArray_DESCR(obj)) + + /* + * FIXME: This should check for a flag on the data-type that + * states whether or not it is variable length. Because the + * ISFLEXIBLE check is hard-coded to the built-in data-types. + */ +#define PyArray_ISVARIABLE(obj) PyTypeNum_ISFLEXIBLE(PyArray_TYPE(obj)) + +#define PyArray_SAFEALIGNEDCOPY(obj) (PyArray_ISALIGNED(obj) && !PyArray_ISVARIABLE(obj)) + + +#define NPY_LITTLE '<' +#define NPY_BIG '>' +#define NPY_NATIVE '=' +#define NPY_SWAP 's' +#define NPY_IGNORE '|' + +#if NPY_BYTE_ORDER == NPY_BIG_ENDIAN +#define NPY_NATBYTE NPY_BIG +#define NPY_OPPBYTE NPY_LITTLE +#else +#define NPY_NATBYTE NPY_LITTLE +#define NPY_OPPBYTE NPY_BIG +#endif + +#define PyArray_ISNBO(arg) ((arg) != NPY_OPPBYTE) +#define PyArray_IsNativeByteOrder PyArray_ISNBO +#define PyArray_ISNOTSWAPPED(m) PyArray_ISNBO(PyArray_DESCR(m)->byteorder) +#define PyArray_ISBYTESWAPPED(m) (!PyArray_ISNOTSWAPPED(m)) + +#define PyArray_FLAGSWAP(m, flags) (PyArray_CHKFLAGS(m, flags) && \ + PyArray_ISNOTSWAPPED(m)) + +#define PyArray_ISCARRAY(m) PyArray_FLAGSWAP(m, NPY_ARRAY_CARRAY) +#define PyArray_ISCARRAY_RO(m) PyArray_FLAGSWAP(m, NPY_ARRAY_CARRAY_RO) +#define PyArray_ISFARRAY(m) PyArray_FLAGSWAP(m, NPY_ARRAY_FARRAY) +#define PyArray_ISFARRAY_RO(m) PyArray_FLAGSWAP(m, NPY_ARRAY_FARRAY_RO) +#define PyArray_ISBEHAVED(m) PyArray_FLAGSWAP(m, NPY_ARRAY_BEHAVED) +#define PyArray_ISBEHAVED_RO(m) PyArray_FLAGSWAP(m, NPY_ARRAY_ALIGNED) + + +#define PyDataType_ISNOTSWAPPED(d) PyArray_ISNBO(((PyArray_Descr *)(d))->byteorder) +#define PyDataType_ISBYTESWAPPED(d) (!PyDataType_ISNOTSWAPPED(d)) + +/************************************************************ + * A struct used by PyArray_CreateSortedStridePerm, new in 1.7. + ************************************************************/ + +typedef struct { + npy_intp perm, stride; +} npy_stride_sort_item; + +/************************************************************ + * This is the form of the struct that's stored in the + * PyCapsule returned by an array's __array_struct__ attribute. See + * https://docs.scipy.org/doc/numpy/reference/arrays.interface.html for the full + * documentation. + ************************************************************/ +typedef struct { + int two; /* + * contains the integer 2 as a sanity + * check + */ + + int nd; /* number of dimensions */ + + char typekind; /* + * kind in array --- character code of + * typestr + */ + + int itemsize; /* size of each element */ + + int flags; /* + * how should be data interpreted. Valid + * flags are CONTIGUOUS (1), F_CONTIGUOUS (2), + * ALIGNED (0x100), NOTSWAPPED (0x200), and + * WRITEABLE (0x400). ARR_HAS_DESCR (0x800) + * states that arrdescr field is present in + * structure + */ + + npy_intp *shape; /* + * A length-nd array of shape + * information + */ + + npy_intp *strides; /* A length-nd array of stride information */ + + void *data; /* A pointer to the first element of the array */ + + PyObject *descr; /* + * A list of fields or NULL (ignored if flags + * does not have ARR_HAS_DESCR flag set) + */ +} PyArrayInterface; + + +/**************************************** + * NpyString + * + * Types used by the NpyString API. + ****************************************/ + +/* + * A "packed" encoded string. The string data must be accessed by first unpacking the string. + */ +typedef struct npy_packed_static_string npy_packed_static_string; + +/* + * An unpacked read-only view onto the data in a packed string + */ +typedef struct npy_unpacked_static_string { + size_t size; + const char *buf; +} npy_static_string; + +/* + * Handles heap allocations for static strings. + */ +typedef struct npy_string_allocator npy_string_allocator; + +typedef struct { + PyArray_Descr base; + // The object representing a null value + PyObject *na_object; + // Flag indicating whether or not to coerce arbitrary objects to strings + char coerce; + // Flag indicating the na object is NaN-like + char has_nan_na; + // Flag indicating the na object is a string + char has_string_na; + // If nonzero, indicates that this instance is owned by an array already + char array_owned; + // The string data to use when a default string is needed + npy_static_string default_string; + // The name of the missing data object, if any + npy_static_string na_name; + // the allocator should only be directly accessed after + // acquiring the allocator_lock and the lock should + // be released immediately after the allocator is + // no longer needed + npy_string_allocator *allocator; +} PyArray_StringDTypeObject; + +/* + * PyArray_DTypeMeta related definitions. + * + * As of now, this API is preliminary and will be extended as necessary. + */ +#if defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD + /* + * The Structures defined in this block are currently considered + * private API and may change without warning! + * Part of this (at least the size) is expected to be public API without + * further modifications. + */ + /* TODO: Make this definition public in the API, as soon as its settled */ + NPY_NO_EXPORT extern PyTypeObject PyArrayDTypeMeta_Type; + + /* + * While NumPy DTypes would not need to be heap types the plan is to + * make DTypes available in Python at which point they will be heap types. + * Since we also wish to add fields to the DType class, this looks like + * a typical instance definition, but with PyHeapTypeObject instead of + * only the PyObject_HEAD. + * This must only be exposed very extremely careful consideration, since + * it is a fairly complex construct which may be better to allow + * refactoring of. + */ + typedef struct { + PyHeapTypeObject super; + + /* + * Most DTypes will have a singleton default instance, for the + * parametric legacy DTypes (bytes, string, void, datetime) this + * may be a pointer to the *prototype* instance? + */ + PyArray_Descr *singleton; + /* Copy of the legacy DTypes type number, usually invalid. */ + int type_num; + + /* The type object of the scalar instances (may be NULL?) */ + PyTypeObject *scalar_type; + /* + * DType flags to signal legacy, parametric, or + * abstract. But plenty of space for additional information/flags. + */ + npy_uint64 flags; + + /* + * Use indirection in order to allow a fixed size for this struct. + * A stable ABI size makes creating a static DType less painful + * while also ensuring flexibility for all opaque API (with one + * indirection due the pointer lookup). + */ + void *dt_slots; + void *reserved[3]; + } PyArray_DTypeMeta; + +#endif /* NPY_INTERNAL_BUILD */ + + +/* + * Use the keyword NPY_DEPRECATED_INCLUDES to ensure that the header files + * npy_*_*_deprecated_api.h are only included from here and nowhere else. + */ +#ifdef NPY_DEPRECATED_INCLUDES +#error "Do not use the reserved keyword NPY_DEPRECATED_INCLUDES." +#endif +#define NPY_DEPRECATED_INCLUDES +/* + * There is no file npy_1_8_deprecated_api.h since there are no additional + * deprecated API features in NumPy 1.8. + * + * Note to maintainers: insert code like the following in future NumPy + * versions. + * + * #if !defined(NPY_NO_DEPRECATED_API) || \ + * (NPY_NO_DEPRECATED_API < NPY_1_9_API_VERSION) + * #include "npy_1_9_deprecated_api.h" + * #endif + * Then in the npy_1_9_deprecated_api.h header add something like this + * -------------------- + * #ifndef NPY_DEPRECATED_INCLUDES + * #error "Should never include npy_*_*_deprecated_api directly." + * #endif + * #ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_1_7_DEPRECATED_API_H_ + * #define NUMPY_CORE_INCLUDE_NUMPY_NPY_1_7_DEPRECATED_API_H_ + * + * #ifndef NPY_NO_DEPRECATED_API + * #if defined(_WIN32) + * #define _WARN___STR2__(x) #x + * #define _WARN___STR1__(x) _WARN___STR2__(x) + * #define _WARN___LOC__ __FILE__ "(" _WARN___STR1__(__LINE__) ") : Warning Msg: " + * #pragma message(_WARN___LOC__"Using deprecated NumPy API, disable it with " \ + * "#define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION") + * #else + * #warning "Using deprecated NumPy API, disable it with " \ + * "#define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" + * #endif + * #endif + * -------------------- + */ +#undef NPY_DEPRECATED_INCLUDES + +#ifdef __cplusplus +} +#endif + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_NDARRAYTYPES_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_2_compat.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_2_compat.h new file mode 100644 index 0000000000000000000000000000000000000000..e39e65aedea7dc95a1130ea94518bb778d1238cd --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_2_compat.h @@ -0,0 +1,249 @@ +/* + * This header file defines relevant features which: + * - Require runtime inspection depending on the NumPy version. + * - May be needed when compiling with an older version of NumPy to allow + * a smooth transition. + * + * As such, it is shipped with NumPy 2.0, but designed to be vendored in full + * or parts by downstream projects. + * + * It must be included after any other includes. `import_array()` must have + * been called in the scope or version dependency will misbehave, even when + * only `PyUFunc_` API is used. + * + * If required complicated defs (with inline functions) should be written as: + * + * #if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION + * Simple definition when NumPy 2.0 API is guaranteed. + * #else + * static inline definition of a 1.x compatibility shim + * #if NPY_ABI_VERSION < 0x02000000 + * Make 1.x compatibility shim the public API (1.x only branch) + * #else + * Runtime dispatched version (1.x or 2.x) + * #endif + * #endif + * + * An internal build always passes NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION + */ + +#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_2_COMPAT_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_NPY_2_COMPAT_H_ + +/* + * New macros for accessing real and complex part of a complex number can be + * found in "npy_2_complexcompat.h". + */ + + +/* + * This header is meant to be included by downstream directly for 1.x compat. + * In that case we need to ensure that users first included the full headers + * and not just `ndarraytypes.h`. + */ + +#ifndef NPY_FEATURE_VERSION + #error "The NumPy 2 compat header requires `import_array()` for which " \ + "the `ndarraytypes.h` header include is not sufficient. Please " \ + "include it after `numpy/ndarrayobject.h` or similar.\n" \ + "To simplify inclusion, you may use `PyArray_ImportNumPy()` " \ + "which is defined in the compat header and is lightweight (can be)." +#endif + +#if NPY_ABI_VERSION < 0x02000000 + /* + * Define 2.0 feature version as it is needed below to decide whether we + * compile for both 1.x and 2.x (defining it guarantees 1.x only). + */ + #define NPY_2_0_API_VERSION 0x00000012 + /* + * If we are compiling with NumPy 1.x, PyArray_RUNTIME_VERSION so we + * pretend the `PyArray_RUNTIME_VERSION` is `NPY_FEATURE_VERSION`. + * This allows downstream to use `PyArray_RUNTIME_VERSION` if they need to. + */ + #define PyArray_RUNTIME_VERSION NPY_FEATURE_VERSION + /* Compiling on NumPy 1.x where these are the same: */ + #define PyArray_DescrProto PyArray_Descr +#endif + + +/* + * Define a better way to call `_import_array()` to simplify backporting as + * we now require imports more often (necessary to make ABI flexible). + */ +#ifdef import_array1 + +static inline int +PyArray_ImportNumPyAPI(void) +{ + if (NPY_UNLIKELY(PyArray_API == NULL)) { + import_array1(-1); + } + return 0; +} + +#endif /* import_array1 */ + + +/* + * NPY_DEFAULT_INT + * + * The default integer has changed, `NPY_DEFAULT_INT` is available at runtime + * for use as type number, e.g. `PyArray_DescrFromType(NPY_DEFAULT_INT)`. + * + * NPY_RAVEL_AXIS + * + * This was introduced in NumPy 2.0 to allow indicating that an axis should be + * raveled in an operation. Before NumPy 2.0, NPY_MAXDIMS was used for this purpose. + * + * NPY_MAXDIMS + * + * A constant indicating the maximum number dimensions allowed when creating + * an ndarray. + * + * NPY_NTYPES_LEGACY + * + * The number of built-in NumPy dtypes. + */ +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION + #define NPY_DEFAULT_INT NPY_INTP + #define NPY_RAVEL_AXIS NPY_MIN_INT + #define NPY_MAXARGS 64 + +#elif NPY_ABI_VERSION < 0x02000000 + #define NPY_DEFAULT_INT NPY_LONG + #define NPY_RAVEL_AXIS 32 + #define NPY_MAXARGS 32 + + /* Aliases of 2.x names to 1.x only equivalent names */ + #define NPY_NTYPES NPY_NTYPES_LEGACY + #define PyArray_DescrProto PyArray_Descr + #define _PyArray_LegacyDescr PyArray_Descr + /* NumPy 2 definition always works, but add it for 1.x only */ + #define PyDataType_ISLEGACY(dtype) (1) +#else + #define NPY_DEFAULT_INT \ + (PyArray_RUNTIME_VERSION >= NPY_2_0_API_VERSION ? NPY_INTP : NPY_LONG) + #define NPY_RAVEL_AXIS \ + (PyArray_RUNTIME_VERSION >= NPY_2_0_API_VERSION ? NPY_MIN_INT : 32) + #define NPY_MAXARGS \ + (PyArray_RUNTIME_VERSION >= NPY_2_0_API_VERSION ? 64 : 32) +#endif + + +/* + * Access inline functions for descriptor fields. Except for the first + * few fields, these needed to be moved (elsize, alignment) for + * additional space. Or they are descriptor specific and are not generally + * available anymore (metadata, c_metadata, subarray, names, fields). + * + * Most of these are defined via the `DESCR_ACCESSOR` macro helper. + */ +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION || NPY_ABI_VERSION < 0x02000000 + /* Compiling for 1.x or 2.x only, direct field access is OK: */ + + static inline void + PyDataType_SET_ELSIZE(PyArray_Descr *dtype, npy_intp size) + { + dtype->elsize = size; + } + + static inline npy_uint64 + PyDataType_FLAGS(const PyArray_Descr *dtype) + { + #if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION + return dtype->flags; + #else + return (unsigned char)dtype->flags; /* Need unsigned cast on 1.x */ + #endif + } + + #define DESCR_ACCESSOR(FIELD, field, type, legacy_only) \ + static inline type \ + PyDataType_##FIELD(const PyArray_Descr *dtype) { \ + if (legacy_only && !PyDataType_ISLEGACY(dtype)) { \ + return (type)0; \ + } \ + return ((_PyArray_LegacyDescr *)dtype)->field; \ + } +#else /* compiling for both 1.x and 2.x */ + + static inline void + PyDataType_SET_ELSIZE(PyArray_Descr *dtype, npy_intp size) + { + if (PyArray_RUNTIME_VERSION >= NPY_2_0_API_VERSION) { + ((_PyArray_DescrNumPy2 *)dtype)->elsize = size; + } + else { + ((PyArray_DescrProto *)dtype)->elsize = (int)size; + } + } + + static inline npy_uint64 + PyDataType_FLAGS(const PyArray_Descr *dtype) + { + if (PyArray_RUNTIME_VERSION >= NPY_2_0_API_VERSION) { + return ((_PyArray_DescrNumPy2 *)dtype)->flags; + } + else { + return (unsigned char)((PyArray_DescrProto *)dtype)->flags; + } + } + + /* Cast to LegacyDescr always fine but needed when `legacy_only` */ + #define DESCR_ACCESSOR(FIELD, field, type, legacy_only) \ + static inline type \ + PyDataType_##FIELD(const PyArray_Descr *dtype) { \ + if (legacy_only && !PyDataType_ISLEGACY(dtype)) { \ + return (type)0; \ + } \ + if (PyArray_RUNTIME_VERSION >= NPY_2_0_API_VERSION) { \ + return ((_PyArray_LegacyDescr *)dtype)->field; \ + } \ + else { \ + return ((PyArray_DescrProto *)dtype)->field; \ + } \ + } +#endif + +DESCR_ACCESSOR(ELSIZE, elsize, npy_intp, 0) +DESCR_ACCESSOR(ALIGNMENT, alignment, npy_intp, 0) +DESCR_ACCESSOR(METADATA, metadata, PyObject *, 1) +DESCR_ACCESSOR(SUBARRAY, subarray, PyArray_ArrayDescr *, 1) +DESCR_ACCESSOR(NAMES, names, PyObject *, 1) +DESCR_ACCESSOR(FIELDS, fields, PyObject *, 1) +DESCR_ACCESSOR(C_METADATA, c_metadata, NpyAuxData *, 1) + +#undef DESCR_ACCESSOR + + +#if !(defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD) +#if NPY_FEATURE_VERSION >= NPY_2_0_API_VERSION + static inline PyArray_ArrFuncs * + PyDataType_GetArrFuncs(const PyArray_Descr *descr) + { + return _PyDataType_GetArrFuncs(descr); + } +#elif NPY_ABI_VERSION < 0x02000000 + static inline PyArray_ArrFuncs * + PyDataType_GetArrFuncs(const PyArray_Descr *descr) + { + return descr->f; + } +#else + static inline PyArray_ArrFuncs * + PyDataType_GetArrFuncs(const PyArray_Descr *descr) + { + if (PyArray_RUNTIME_VERSION >= NPY_2_0_API_VERSION) { + return _PyDataType_GetArrFuncs(descr); + } + else { + return ((PyArray_DescrProto *)descr)->f; + } + } +#endif + + +#endif /* not internal build */ + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_NPY_2_COMPAT_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_2_complexcompat.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_2_complexcompat.h new file mode 100644 index 0000000000000000000000000000000000000000..0b509011b2803b978bd913191816a9bbd6635d35 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_2_complexcompat.h @@ -0,0 +1,28 @@ +/* This header is designed to be copy-pasted into downstream packages, since it provides + a compatibility layer between the old C struct complex types and the new native C99 + complex types. The new macros are in numpy/npy_math.h, which is why it is included here. */ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_2_COMPLEXCOMPAT_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_NPY_2_COMPLEXCOMPAT_H_ + +#include + +#ifndef NPY_CSETREALF +#define NPY_CSETREALF(c, r) (c)->real = (r) +#endif +#ifndef NPY_CSETIMAGF +#define NPY_CSETIMAGF(c, i) (c)->imag = (i) +#endif +#ifndef NPY_CSETREAL +#define NPY_CSETREAL(c, r) (c)->real = (r) +#endif +#ifndef NPY_CSETIMAG +#define NPY_CSETIMAG(c, i) (c)->imag = (i) +#endif +#ifndef NPY_CSETREALL +#define NPY_CSETREALL(c, r) (c)->real = (r) +#endif +#ifndef NPY_CSETIMAGL +#define NPY_CSETIMAGL(c, i) (c)->imag = (i) +#endif + +#endif diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_3kcompat.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_3kcompat.h new file mode 100644 index 0000000000000000000000000000000000000000..cd91f66268c75972116f7744c345c5be83d71cc0 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_3kcompat.h @@ -0,0 +1,374 @@ +/* + * This is a convenience header file providing compatibility utilities + * for supporting different minor versions of Python 3. + * It was originally used to support the transition from Python 2, + * hence the "3k" naming. + * + * If you want to use this for your own projects, it's recommended to make a + * copy of it. We don't provide backwards compatibility guarantees. + */ + +#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_3KCOMPAT_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_NPY_3KCOMPAT_H_ + +#include +#include + +#include "npy_common.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* Python13 removes _PyLong_AsInt */ +static inline int +Npy__PyLong_AsInt(PyObject *obj) +{ + int overflow; + long result = PyLong_AsLongAndOverflow(obj, &overflow); + + /* INT_MAX and INT_MIN are defined in Python.h */ + if (overflow || result > INT_MAX || result < INT_MIN) { + /* XXX: could be cute and give a different + message for overflow == -1 */ + PyErr_SetString(PyExc_OverflowError, + "Python int too large to convert to C int"); + return -1; + } + return (int)result; +} + +#if defined _MSC_VER && _MSC_VER >= 1900 + +#include + +/* + * Macros to protect CRT calls against instant termination when passed an + * invalid parameter (https://bugs.python.org/issue23524). + */ +extern _invalid_parameter_handler _Py_silent_invalid_parameter_handler; +#define NPY_BEGIN_SUPPRESS_IPH { _invalid_parameter_handler _Py_old_handler = \ + _set_thread_local_invalid_parameter_handler(_Py_silent_invalid_parameter_handler); +#define NPY_END_SUPPRESS_IPH _set_thread_local_invalid_parameter_handler(_Py_old_handler); } + +#else + +#define NPY_BEGIN_SUPPRESS_IPH +#define NPY_END_SUPPRESS_IPH + +#endif /* _MSC_VER >= 1900 */ + +/* + * PyFile_* compatibility + */ + +/* + * Get a FILE* handle to the file represented by the Python object + */ +static inline FILE* +npy_PyFile_Dup2(PyObject *file, char *mode, npy_off_t *orig_pos) +{ + int fd, fd2, unbuf; + Py_ssize_t fd2_tmp; + PyObject *ret, *os, *io, *io_raw; + npy_off_t pos; + FILE *handle; + + /* Flush first to ensure things end up in the file in the correct order */ + ret = PyObject_CallMethod(file, "flush", ""); + if (ret == NULL) { + return NULL; + } + Py_DECREF(ret); + fd = PyObject_AsFileDescriptor(file); + if (fd == -1) { + return NULL; + } + + /* + * The handle needs to be dup'd because we have to call fclose + * at the end + */ + os = PyImport_ImportModule("os"); + if (os == NULL) { + return NULL; + } + ret = PyObject_CallMethod(os, "dup", "i", fd); + Py_DECREF(os); + if (ret == NULL) { + return NULL; + } + fd2_tmp = PyNumber_AsSsize_t(ret, PyExc_IOError); + Py_DECREF(ret); + if (fd2_tmp == -1 && PyErr_Occurred()) { + return NULL; + } + if (fd2_tmp < INT_MIN || fd2_tmp > INT_MAX) { + PyErr_SetString(PyExc_IOError, + "Getting an 'int' from os.dup() failed"); + return NULL; + } + fd2 = (int)fd2_tmp; + + /* Convert to FILE* handle */ +#ifdef _WIN32 + NPY_BEGIN_SUPPRESS_IPH + handle = _fdopen(fd2, mode); + NPY_END_SUPPRESS_IPH +#else + handle = fdopen(fd2, mode); +#endif + if (handle == NULL) { + PyErr_SetString(PyExc_IOError, + "Getting a FILE* from a Python file object via " + "_fdopen failed. If you built NumPy, you probably " + "linked with the wrong debug/release runtime"); + return NULL; + } + + /* Record the original raw file handle position */ + *orig_pos = npy_ftell(handle); + if (*orig_pos == -1) { + /* The io module is needed to determine if buffering is used */ + io = PyImport_ImportModule("io"); + if (io == NULL) { + fclose(handle); + return NULL; + } + /* File object instances of RawIOBase are unbuffered */ + io_raw = PyObject_GetAttrString(io, "RawIOBase"); + Py_DECREF(io); + if (io_raw == NULL) { + fclose(handle); + return NULL; + } + unbuf = PyObject_IsInstance(file, io_raw); + Py_DECREF(io_raw); + if (unbuf == 1) { + /* Succeed if the IO is unbuffered */ + return handle; + } + else { + PyErr_SetString(PyExc_IOError, "obtaining file position failed"); + fclose(handle); + return NULL; + } + } + + /* Seek raw handle to the Python-side position */ + ret = PyObject_CallMethod(file, "tell", ""); + if (ret == NULL) { + fclose(handle); + return NULL; + } + pos = PyLong_AsLongLong(ret); + Py_DECREF(ret); + if (PyErr_Occurred()) { + fclose(handle); + return NULL; + } + if (npy_fseek(handle, pos, SEEK_SET) == -1) { + PyErr_SetString(PyExc_IOError, "seeking file failed"); + fclose(handle); + return NULL; + } + return handle; +} + +/* + * Close the dup-ed file handle, and seek the Python one to the current position + */ +static inline int +npy_PyFile_DupClose2(PyObject *file, FILE* handle, npy_off_t orig_pos) +{ + int fd, unbuf; + PyObject *ret, *io, *io_raw; + npy_off_t position; + + position = npy_ftell(handle); + + /* Close the FILE* handle */ + fclose(handle); + + /* + * Restore original file handle position, in order to not confuse + * Python-side data structures + */ + fd = PyObject_AsFileDescriptor(file); + if (fd == -1) { + return -1; + } + + if (npy_lseek(fd, orig_pos, SEEK_SET) == -1) { + + /* The io module is needed to determine if buffering is used */ + io = PyImport_ImportModule("io"); + if (io == NULL) { + return -1; + } + /* File object instances of RawIOBase are unbuffered */ + io_raw = PyObject_GetAttrString(io, "RawIOBase"); + Py_DECREF(io); + if (io_raw == NULL) { + return -1; + } + unbuf = PyObject_IsInstance(file, io_raw); + Py_DECREF(io_raw); + if (unbuf == 1) { + /* Succeed if the IO is unbuffered */ + return 0; + } + else { + PyErr_SetString(PyExc_IOError, "seeking file failed"); + return -1; + } + } + + if (position == -1) { + PyErr_SetString(PyExc_IOError, "obtaining file position failed"); + return -1; + } + + /* Seek Python-side handle to the FILE* handle position */ + ret = PyObject_CallMethod(file, "seek", NPY_OFF_T_PYFMT "i", position, 0); + if (ret == NULL) { + return -1; + } + Py_DECREF(ret); + return 0; +} + +static inline PyObject* +npy_PyFile_OpenFile(PyObject *filename, const char *mode) +{ + PyObject *open; + open = PyDict_GetItemString(PyEval_GetBuiltins(), "open"); // noqa: borrowed-ref OK + if (open == NULL) { + return NULL; + } + return PyObject_CallFunction(open, "Os", filename, mode); +} + +static inline int +npy_PyFile_CloseFile(PyObject *file) +{ + PyObject *ret; + + ret = PyObject_CallMethod(file, "close", NULL); + if (ret == NULL) { + return -1; + } + Py_DECREF(ret); + return 0; +} + +/* This is a copy of _PyErr_ChainExceptions, which + * is no longer exported from Python3.12 + */ +static inline void +npy_PyErr_ChainExceptions(PyObject *exc, PyObject *val, PyObject *tb) +{ + if (exc == NULL) + return; + + if (PyErr_Occurred()) { + PyObject *exc2, *val2, *tb2; + PyErr_Fetch(&exc2, &val2, &tb2); + PyErr_NormalizeException(&exc, &val, &tb); + if (tb != NULL) { + PyException_SetTraceback(val, tb); + Py_DECREF(tb); + } + Py_DECREF(exc); + PyErr_NormalizeException(&exc2, &val2, &tb2); + PyException_SetContext(val2, val); + PyErr_Restore(exc2, val2, tb2); + } + else { + PyErr_Restore(exc, val, tb); + } +} + +/* This is a copy of _PyErr_ChainExceptions, with: + * __cause__ used instead of __context__ + */ +static inline void +npy_PyErr_ChainExceptionsCause(PyObject *exc, PyObject *val, PyObject *tb) +{ + if (exc == NULL) + return; + + if (PyErr_Occurred()) { + PyObject *exc2, *val2, *tb2; + PyErr_Fetch(&exc2, &val2, &tb2); + PyErr_NormalizeException(&exc, &val, &tb); + if (tb != NULL) { + PyException_SetTraceback(val, tb); + Py_DECREF(tb); + } + Py_DECREF(exc); + PyErr_NormalizeException(&exc2, &val2, &tb2); + PyException_SetCause(val2, val); + PyErr_Restore(exc2, val2, tb2); + } + else { + PyErr_Restore(exc, val, tb); + } +} + +/* + * PyCObject functions adapted to PyCapsules. + * + * The main job here is to get rid of the improved error handling + * of PyCapsules. It's a shame... + */ +static inline PyObject * +NpyCapsule_FromVoidPtr(void *ptr, void (*dtor)(PyObject *)) +{ + PyObject *ret = PyCapsule_New(ptr, NULL, dtor); + if (ret == NULL) { + PyErr_Clear(); + } + return ret; +} + +static inline PyObject * +NpyCapsule_FromVoidPtrAndDesc(void *ptr, void* context, void (*dtor)(PyObject *)) +{ + PyObject *ret = NpyCapsule_FromVoidPtr(ptr, dtor); + if (ret != NULL && PyCapsule_SetContext(ret, context) != 0) { + PyErr_Clear(); + Py_DECREF(ret); + ret = NULL; + } + return ret; +} + +static inline void * +NpyCapsule_AsVoidPtr(PyObject *obj) +{ + void *ret = PyCapsule_GetPointer(obj, NULL); + if (ret == NULL) { + PyErr_Clear(); + } + return ret; +} + +static inline void * +NpyCapsule_GetDesc(PyObject *obj) +{ + return PyCapsule_GetContext(obj); +} + +static inline int +NpyCapsule_Check(PyObject *ptr) +{ + return PyCapsule_CheckExact(ptr); +} + +#ifdef __cplusplus +} +#endif + + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_NPY_3KCOMPAT_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_common.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_common.h new file mode 100644 index 0000000000000000000000000000000000000000..5eaa2903542861de74bf157d317aa463fb69531e --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_common.h @@ -0,0 +1,989 @@ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_COMMON_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_NPY_COMMON_H_ + +/* need Python.h for npy_intp, npy_uintp */ +#include + +/* numpconfig.h is auto-generated */ +#include "numpyconfig.h" +#ifdef HAVE_NPY_CONFIG_H +#include +#endif + +/* + * using static inline modifiers when defining npy_math functions + * allows the compiler to make optimizations when possible + */ +#ifndef NPY_INLINE_MATH +#if defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD + #define NPY_INLINE_MATH 1 +#else + #define NPY_INLINE_MATH 0 +#endif +#endif + +/* + * gcc does not unroll even with -O3 + * use with care, unrolling on modern cpus rarely speeds things up + */ +#ifdef HAVE_ATTRIBUTE_OPTIMIZE_UNROLL_LOOPS +#define NPY_GCC_UNROLL_LOOPS \ + __attribute__((optimize("unroll-loops"))) +#else +#define NPY_GCC_UNROLL_LOOPS +#endif + +/* highest gcc optimization level, enabled autovectorizer */ +#ifdef HAVE_ATTRIBUTE_OPTIMIZE_OPT_3 +#define NPY_GCC_OPT_3 __attribute__((optimize("O3"))) +#else +#define NPY_GCC_OPT_3 +#endif + +/* + * mark an argument (starting from 1) that must not be NULL and is not checked + * DO NOT USE IF FUNCTION CHECKS FOR NULL!! the compiler will remove the check + */ +#ifdef HAVE_ATTRIBUTE_NONNULL +#define NPY_GCC_NONNULL(n) __attribute__((nonnull(n))) +#else +#define NPY_GCC_NONNULL(n) +#endif + +/* + * give a hint to the compiler which branch is more likely or unlikely + * to occur, e.g. rare error cases: + * + * if (NPY_UNLIKELY(failure == 0)) + * return NULL; + * + * the double !! is to cast the expression (e.g. NULL) to a boolean required by + * the intrinsic + */ +#ifdef HAVE___BUILTIN_EXPECT +#define NPY_LIKELY(x) __builtin_expect(!!(x), 1) +#define NPY_UNLIKELY(x) __builtin_expect(!!(x), 0) +#else +#define NPY_LIKELY(x) (x) +#define NPY_UNLIKELY(x) (x) +#endif + +#ifdef HAVE___BUILTIN_PREFETCH +/* unlike _mm_prefetch also works on non-x86 */ +#define NPY_PREFETCH(x, rw, loc) __builtin_prefetch((x), (rw), (loc)) +#else +#ifdef NPY_HAVE_SSE +/* _MM_HINT_ET[01] (rw = 1) unsupported, only available in gcc >= 4.9 */ +#define NPY_PREFETCH(x, rw, loc) _mm_prefetch((x), loc == 0 ? _MM_HINT_NTA : \ + (loc == 1 ? _MM_HINT_T2 : \ + (loc == 2 ? _MM_HINT_T1 : \ + (loc == 3 ? _MM_HINT_T0 : -1)))) +#else +#define NPY_PREFETCH(x, rw,loc) +#endif +#endif + +/* `NPY_INLINE` kept for backwards compatibility; use `inline` instead */ +#if defined(_MSC_VER) && !defined(__clang__) + #define NPY_INLINE __inline +/* clang included here to handle clang-cl on Windows */ +#elif defined(__GNUC__) || defined(__clang__) + #if defined(__STRICT_ANSI__) + #define NPY_INLINE __inline__ + #else + #define NPY_INLINE inline + #endif +#else + #define NPY_INLINE +#endif + +#ifdef _MSC_VER + #ifdef __cplusplus + #define NPY_FINLINE __forceinline + #else + #define NPY_FINLINE static __forceinline + #endif +#elif defined(__GNUC__) + #ifdef __cplusplus + #define NPY_FINLINE inline __attribute__((always_inline)) + #else + #define NPY_FINLINE static inline __attribute__((always_inline)) + #endif +#else + #ifdef __cplusplus + #define NPY_FINLINE inline + #else + #define NPY_FINLINE static NPY_INLINE + #endif +#endif + +#if defined(_MSC_VER) + #define NPY_NOINLINE static __declspec(noinline) +#elif defined(__GNUC__) || defined(__clang__) + #define NPY_NOINLINE static __attribute__((noinline)) +#else + #define NPY_NOINLINE static +#endif + +#ifdef __cplusplus + #define NPY_TLS thread_local +#elif defined(HAVE_THREAD_LOCAL) + #define NPY_TLS thread_local +#elif defined(HAVE__THREAD_LOCAL) + #define NPY_TLS _Thread_local +#elif defined(HAVE___THREAD) + #define NPY_TLS __thread +#elif defined(HAVE___DECLSPEC_THREAD_) + #define NPY_TLS __declspec(thread) +#else + #define NPY_TLS +#endif + +#ifdef WITH_CPYCHECKER_RETURNS_BORROWED_REF_ATTRIBUTE + #define NPY_RETURNS_BORROWED_REF \ + __attribute__((cpychecker_returns_borrowed_ref)) +#else + #define NPY_RETURNS_BORROWED_REF +#endif + +#ifdef WITH_CPYCHECKER_STEALS_REFERENCE_TO_ARG_ATTRIBUTE + #define NPY_STEALS_REF_TO_ARG(n) \ + __attribute__((cpychecker_steals_reference_to_arg(n))) +#else + #define NPY_STEALS_REF_TO_ARG(n) +#endif + +/* 64 bit file position support, also on win-amd64. Issue gh-2256 */ +#if defined(_MSC_VER) && defined(_WIN64) && (_MSC_VER > 1400) || \ + defined(__MINGW32__) || defined(__MINGW64__) + #include + + #define npy_fseek _fseeki64 + #define npy_ftell _ftelli64 + #define npy_lseek _lseeki64 + #define npy_off_t npy_int64 + + #if NPY_SIZEOF_INT == 8 + #define NPY_OFF_T_PYFMT "i" + #elif NPY_SIZEOF_LONG == 8 + #define NPY_OFF_T_PYFMT "l" + #elif NPY_SIZEOF_LONGLONG == 8 + #define NPY_OFF_T_PYFMT "L" + #else + #error Unsupported size for type off_t + #endif +#else +#ifdef HAVE_FSEEKO + #define npy_fseek fseeko +#else + #define npy_fseek fseek +#endif +#ifdef HAVE_FTELLO + #define npy_ftell ftello +#else + #define npy_ftell ftell +#endif + #include + #ifndef _WIN32 + #include + #endif + #define npy_lseek lseek + #define npy_off_t off_t + + #if NPY_SIZEOF_OFF_T == NPY_SIZEOF_SHORT + #define NPY_OFF_T_PYFMT "h" + #elif NPY_SIZEOF_OFF_T == NPY_SIZEOF_INT + #define NPY_OFF_T_PYFMT "i" + #elif NPY_SIZEOF_OFF_T == NPY_SIZEOF_LONG + #define NPY_OFF_T_PYFMT "l" + #elif NPY_SIZEOF_OFF_T == NPY_SIZEOF_LONGLONG + #define NPY_OFF_T_PYFMT "L" + #else + #error Unsupported size for type off_t + #endif +#endif + +/* enums for detected endianness */ +enum { + NPY_CPU_UNKNOWN_ENDIAN, + NPY_CPU_LITTLE, + NPY_CPU_BIG +}; + +/* + * This is to typedef npy_intp to the appropriate size for Py_ssize_t. + * (Before NumPy 2.0 we used Py_intptr_t and Py_uintptr_t from `pyport.h`.) + */ +typedef Py_ssize_t npy_intp; +typedef size_t npy_uintp; + +/* + * Define sizes that were not defined in numpyconfig.h. + */ +#define NPY_SIZEOF_CHAR 1 +#define NPY_SIZEOF_BYTE 1 +#define NPY_SIZEOF_DATETIME 8 +#define NPY_SIZEOF_TIMEDELTA 8 +#define NPY_SIZEOF_HALF 2 +#define NPY_SIZEOF_CFLOAT NPY_SIZEOF_COMPLEX_FLOAT +#define NPY_SIZEOF_CDOUBLE NPY_SIZEOF_COMPLEX_DOUBLE +#define NPY_SIZEOF_CLONGDOUBLE NPY_SIZEOF_COMPLEX_LONGDOUBLE + +#ifdef constchar +#undef constchar +#endif + +#define NPY_SSIZE_T_PYFMT "n" +#define constchar char + +/* NPY_INTP_FMT Note: + * Unlike the other NPY_*_FMT macros, which are used with PyOS_snprintf, + * NPY_INTP_FMT is used with PyErr_Format and PyUnicode_FromFormat. Those + * functions use different formatting codes that are portably specified + * according to the Python documentation. See issue gh-2388. + */ +#if NPY_SIZEOF_INTP == NPY_SIZEOF_LONG + #define NPY_INTP NPY_LONG + #define NPY_UINTP NPY_ULONG + #define PyIntpArrType_Type PyLongArrType_Type + #define PyUIntpArrType_Type PyULongArrType_Type + #define NPY_MAX_INTP NPY_MAX_LONG + #define NPY_MIN_INTP NPY_MIN_LONG + #define NPY_MAX_UINTP NPY_MAX_ULONG + #define NPY_INTP_FMT "ld" +#elif NPY_SIZEOF_INTP == NPY_SIZEOF_INT + #define NPY_INTP NPY_INT + #define NPY_UINTP NPY_UINT + #define PyIntpArrType_Type PyIntArrType_Type + #define PyUIntpArrType_Type PyUIntArrType_Type + #define NPY_MAX_INTP NPY_MAX_INT + #define NPY_MIN_INTP NPY_MIN_INT + #define NPY_MAX_UINTP NPY_MAX_UINT + #define NPY_INTP_FMT "d" +#elif defined(PY_LONG_LONG) && (NPY_SIZEOF_INTP == NPY_SIZEOF_LONGLONG) + #define NPY_INTP NPY_LONGLONG + #define NPY_UINTP NPY_ULONGLONG + #define PyIntpArrType_Type PyLongLongArrType_Type + #define PyUIntpArrType_Type PyULongLongArrType_Type + #define NPY_MAX_INTP NPY_MAX_LONGLONG + #define NPY_MIN_INTP NPY_MIN_LONGLONG + #define NPY_MAX_UINTP NPY_MAX_ULONGLONG + #define NPY_INTP_FMT "lld" +#else + #error "Failed to correctly define NPY_INTP and NPY_UINTP" +#endif + + +/* + * Some platforms don't define bool, long long, or long double. + * Handle that here. + */ +#define NPY_BYTE_FMT "hhd" +#define NPY_UBYTE_FMT "hhu" +#define NPY_SHORT_FMT "hd" +#define NPY_USHORT_FMT "hu" +#define NPY_INT_FMT "d" +#define NPY_UINT_FMT "u" +#define NPY_LONG_FMT "ld" +#define NPY_ULONG_FMT "lu" +#define NPY_HALF_FMT "g" +#define NPY_FLOAT_FMT "g" +#define NPY_DOUBLE_FMT "g" + + +#ifdef PY_LONG_LONG +typedef PY_LONG_LONG npy_longlong; +typedef unsigned PY_LONG_LONG npy_ulonglong; +# ifdef _MSC_VER +# define NPY_LONGLONG_FMT "I64d" +# define NPY_ULONGLONG_FMT "I64u" +# else +# define NPY_LONGLONG_FMT "lld" +# define NPY_ULONGLONG_FMT "llu" +# endif +# ifdef _MSC_VER +# define NPY_LONGLONG_SUFFIX(x) (x##i64) +# define NPY_ULONGLONG_SUFFIX(x) (x##Ui64) +# else +# define NPY_LONGLONG_SUFFIX(x) (x##LL) +# define NPY_ULONGLONG_SUFFIX(x) (x##ULL) +# endif +#else +typedef long npy_longlong; +typedef unsigned long npy_ulonglong; +# define NPY_LONGLONG_SUFFIX(x) (x##L) +# define NPY_ULONGLONG_SUFFIX(x) (x##UL) +#endif + + +typedef unsigned char npy_bool; +#define NPY_FALSE 0 +#define NPY_TRUE 1 +/* + * `NPY_SIZEOF_LONGDOUBLE` isn't usually equal to sizeof(long double). + * In some certain cases, it may forced to be equal to sizeof(double) + * even against the compiler implementation and the same goes for + * `complex long double`. + * + * Therefore, avoid `long double`, use `npy_longdouble` instead, + * and when it comes to standard math functions make sure of using + * the double version when `NPY_SIZEOF_LONGDOUBLE` == `NPY_SIZEOF_DOUBLE`. + * For example: + * npy_longdouble *ptr, x; + * #if NPY_SIZEOF_LONGDOUBLE == NPY_SIZEOF_DOUBLE + * npy_longdouble r = modf(x, ptr); + * #else + * npy_longdouble r = modfl(x, ptr); + * #endif + * + * See https://github.com/numpy/numpy/issues/20348 + */ +#if NPY_SIZEOF_LONGDOUBLE == NPY_SIZEOF_DOUBLE + #define NPY_LONGDOUBLE_FMT "g" + #define longdouble_t double + typedef double npy_longdouble; +#else + #define NPY_LONGDOUBLE_FMT "Lg" + #define longdouble_t long double + typedef long double npy_longdouble; +#endif + +#ifndef Py_USING_UNICODE +#error Must use Python with unicode enabled. +#endif + + +typedef signed char npy_byte; +typedef unsigned char npy_ubyte; +typedef unsigned short npy_ushort; +typedef unsigned int npy_uint; +typedef unsigned long npy_ulong; + +/* These are for completeness */ +typedef char npy_char; +typedef short npy_short; +typedef int npy_int; +typedef long npy_long; +typedef float npy_float; +typedef double npy_double; + +typedef Py_hash_t npy_hash_t; +#define NPY_SIZEOF_HASH_T NPY_SIZEOF_INTP + +#if defined(__cplusplus) + +typedef struct +{ + double _Val[2]; +} npy_cdouble; + +typedef struct +{ + float _Val[2]; +} npy_cfloat; + +typedef struct +{ + long double _Val[2]; +} npy_clongdouble; + +#else + +#include + + +#if defined(_MSC_VER) && !defined(__INTEL_COMPILER) +typedef _Dcomplex npy_cdouble; +typedef _Fcomplex npy_cfloat; +typedef _Lcomplex npy_clongdouble; +#else /* !defined(_MSC_VER) || defined(__INTEL_COMPILER) */ +typedef double _Complex npy_cdouble; +typedef float _Complex npy_cfloat; +typedef longdouble_t _Complex npy_clongdouble; +#endif + +#endif + +/* + * numarray-style bit-width typedefs + */ +#define NPY_MAX_INT8 127 +#define NPY_MIN_INT8 -128 +#define NPY_MAX_UINT8 255 +#define NPY_MAX_INT16 32767 +#define NPY_MIN_INT16 -32768 +#define NPY_MAX_UINT16 65535 +#define NPY_MAX_INT32 2147483647 +#define NPY_MIN_INT32 (-NPY_MAX_INT32 - 1) +#define NPY_MAX_UINT32 4294967295U +#define NPY_MAX_INT64 NPY_LONGLONG_SUFFIX(9223372036854775807) +#define NPY_MIN_INT64 (-NPY_MAX_INT64 - NPY_LONGLONG_SUFFIX(1)) +#define NPY_MAX_UINT64 NPY_ULONGLONG_SUFFIX(18446744073709551615) +#define NPY_MAX_INT128 NPY_LONGLONG_SUFFIX(85070591730234615865843651857942052864) +#define NPY_MIN_INT128 (-NPY_MAX_INT128 - NPY_LONGLONG_SUFFIX(1)) +#define NPY_MAX_UINT128 NPY_ULONGLONG_SUFFIX(170141183460469231731687303715884105728) +#define NPY_MIN_DATETIME NPY_MIN_INT64 +#define NPY_MAX_DATETIME NPY_MAX_INT64 +#define NPY_MIN_TIMEDELTA NPY_MIN_INT64 +#define NPY_MAX_TIMEDELTA NPY_MAX_INT64 + + /* Need to find the number of bits for each type and + make definitions accordingly. + + C states that sizeof(char) == 1 by definition + + So, just using the sizeof keyword won't help. + + It also looks like Python itself uses sizeof(char) quite a + bit, which by definition should be 1 all the time. + + Idea: Make Use of CHAR_BIT which should tell us how many + BITS per CHARACTER + */ + + /* Include platform definitions -- These are in the C89/90 standard */ +#include +#define NPY_MAX_BYTE SCHAR_MAX +#define NPY_MIN_BYTE SCHAR_MIN +#define NPY_MAX_UBYTE UCHAR_MAX +#define NPY_MAX_SHORT SHRT_MAX +#define NPY_MIN_SHORT SHRT_MIN +#define NPY_MAX_USHORT USHRT_MAX +#define NPY_MAX_INT INT_MAX +#ifndef INT_MIN +#define INT_MIN (-INT_MAX - 1) +#endif +#define NPY_MIN_INT INT_MIN +#define NPY_MAX_UINT UINT_MAX +#define NPY_MAX_LONG LONG_MAX +#define NPY_MIN_LONG LONG_MIN +#define NPY_MAX_ULONG ULONG_MAX + +#define NPY_BITSOF_BOOL (sizeof(npy_bool) * CHAR_BIT) +#define NPY_BITSOF_CHAR CHAR_BIT +#define NPY_BITSOF_BYTE (NPY_SIZEOF_BYTE * CHAR_BIT) +#define NPY_BITSOF_SHORT (NPY_SIZEOF_SHORT * CHAR_BIT) +#define NPY_BITSOF_INT (NPY_SIZEOF_INT * CHAR_BIT) +#define NPY_BITSOF_LONG (NPY_SIZEOF_LONG * CHAR_BIT) +#define NPY_BITSOF_LONGLONG (NPY_SIZEOF_LONGLONG * CHAR_BIT) +#define NPY_BITSOF_INTP (NPY_SIZEOF_INTP * CHAR_BIT) +#define NPY_BITSOF_HALF (NPY_SIZEOF_HALF * CHAR_BIT) +#define NPY_BITSOF_FLOAT (NPY_SIZEOF_FLOAT * CHAR_BIT) +#define NPY_BITSOF_DOUBLE (NPY_SIZEOF_DOUBLE * CHAR_BIT) +#define NPY_BITSOF_LONGDOUBLE (NPY_SIZEOF_LONGDOUBLE * CHAR_BIT) +#define NPY_BITSOF_CFLOAT (NPY_SIZEOF_CFLOAT * CHAR_BIT) +#define NPY_BITSOF_CDOUBLE (NPY_SIZEOF_CDOUBLE * CHAR_BIT) +#define NPY_BITSOF_CLONGDOUBLE (NPY_SIZEOF_CLONGDOUBLE * CHAR_BIT) +#define NPY_BITSOF_DATETIME (NPY_SIZEOF_DATETIME * CHAR_BIT) +#define NPY_BITSOF_TIMEDELTA (NPY_SIZEOF_TIMEDELTA * CHAR_BIT) + +#if NPY_BITSOF_LONG == 8 +#define NPY_INT8 NPY_LONG +#define NPY_UINT8 NPY_ULONG + typedef long npy_int8; + typedef unsigned long npy_uint8; +#define PyInt8ScalarObject PyLongScalarObject +#define PyInt8ArrType_Type PyLongArrType_Type +#define PyUInt8ScalarObject PyULongScalarObject +#define PyUInt8ArrType_Type PyULongArrType_Type +#define NPY_INT8_FMT NPY_LONG_FMT +#define NPY_UINT8_FMT NPY_ULONG_FMT +#elif NPY_BITSOF_LONG == 16 +#define NPY_INT16 NPY_LONG +#define NPY_UINT16 NPY_ULONG + typedef long npy_int16; + typedef unsigned long npy_uint16; +#define PyInt16ScalarObject PyLongScalarObject +#define PyInt16ArrType_Type PyLongArrType_Type +#define PyUInt16ScalarObject PyULongScalarObject +#define PyUInt16ArrType_Type PyULongArrType_Type +#define NPY_INT16_FMT NPY_LONG_FMT +#define NPY_UINT16_FMT NPY_ULONG_FMT +#elif NPY_BITSOF_LONG == 32 +#define NPY_INT32 NPY_LONG +#define NPY_UINT32 NPY_ULONG + typedef long npy_int32; + typedef unsigned long npy_uint32; + typedef unsigned long npy_ucs4; +#define PyInt32ScalarObject PyLongScalarObject +#define PyInt32ArrType_Type PyLongArrType_Type +#define PyUInt32ScalarObject PyULongScalarObject +#define PyUInt32ArrType_Type PyULongArrType_Type +#define NPY_INT32_FMT NPY_LONG_FMT +#define NPY_UINT32_FMT NPY_ULONG_FMT +#elif NPY_BITSOF_LONG == 64 +#define NPY_INT64 NPY_LONG +#define NPY_UINT64 NPY_ULONG + typedef long npy_int64; + typedef unsigned long npy_uint64; +#define PyInt64ScalarObject PyLongScalarObject +#define PyInt64ArrType_Type PyLongArrType_Type +#define PyUInt64ScalarObject PyULongScalarObject +#define PyUInt64ArrType_Type PyULongArrType_Type +#define NPY_INT64_FMT NPY_LONG_FMT +#define NPY_UINT64_FMT NPY_ULONG_FMT +#define MyPyLong_FromInt64 PyLong_FromLong +#define MyPyLong_AsInt64 PyLong_AsLong +#endif + +#if NPY_BITSOF_LONGLONG == 8 +# ifndef NPY_INT8 +# define NPY_INT8 NPY_LONGLONG +# define NPY_UINT8 NPY_ULONGLONG + typedef npy_longlong npy_int8; + typedef npy_ulonglong npy_uint8; +# define PyInt8ScalarObject PyLongLongScalarObject +# define PyInt8ArrType_Type PyLongLongArrType_Type +# define PyUInt8ScalarObject PyULongLongScalarObject +# define PyUInt8ArrType_Type PyULongLongArrType_Type +#define NPY_INT8_FMT NPY_LONGLONG_FMT +#define NPY_UINT8_FMT NPY_ULONGLONG_FMT +# endif +# define NPY_MAX_LONGLONG NPY_MAX_INT8 +# define NPY_MIN_LONGLONG NPY_MIN_INT8 +# define NPY_MAX_ULONGLONG NPY_MAX_UINT8 +#elif NPY_BITSOF_LONGLONG == 16 +# ifndef NPY_INT16 +# define NPY_INT16 NPY_LONGLONG +# define NPY_UINT16 NPY_ULONGLONG + typedef npy_longlong npy_int16; + typedef npy_ulonglong npy_uint16; +# define PyInt16ScalarObject PyLongLongScalarObject +# define PyInt16ArrType_Type PyLongLongArrType_Type +# define PyUInt16ScalarObject PyULongLongScalarObject +# define PyUInt16ArrType_Type PyULongLongArrType_Type +#define NPY_INT16_FMT NPY_LONGLONG_FMT +#define NPY_UINT16_FMT NPY_ULONGLONG_FMT +# endif +# define NPY_MAX_LONGLONG NPY_MAX_INT16 +# define NPY_MIN_LONGLONG NPY_MIN_INT16 +# define NPY_MAX_ULONGLONG NPY_MAX_UINT16 +#elif NPY_BITSOF_LONGLONG == 32 +# ifndef NPY_INT32 +# define NPY_INT32 NPY_LONGLONG +# define NPY_UINT32 NPY_ULONGLONG + typedef npy_longlong npy_int32; + typedef npy_ulonglong npy_uint32; + typedef npy_ulonglong npy_ucs4; +# define PyInt32ScalarObject PyLongLongScalarObject +# define PyInt32ArrType_Type PyLongLongArrType_Type +# define PyUInt32ScalarObject PyULongLongScalarObject +# define PyUInt32ArrType_Type PyULongLongArrType_Type +#define NPY_INT32_FMT NPY_LONGLONG_FMT +#define NPY_UINT32_FMT NPY_ULONGLONG_FMT +# endif +# define NPY_MAX_LONGLONG NPY_MAX_INT32 +# define NPY_MIN_LONGLONG NPY_MIN_INT32 +# define NPY_MAX_ULONGLONG NPY_MAX_UINT32 +#elif NPY_BITSOF_LONGLONG == 64 +# ifndef NPY_INT64 +# define NPY_INT64 NPY_LONGLONG +# define NPY_UINT64 NPY_ULONGLONG + typedef npy_longlong npy_int64; + typedef npy_ulonglong npy_uint64; +# define PyInt64ScalarObject PyLongLongScalarObject +# define PyInt64ArrType_Type PyLongLongArrType_Type +# define PyUInt64ScalarObject PyULongLongScalarObject +# define PyUInt64ArrType_Type PyULongLongArrType_Type +#define NPY_INT64_FMT NPY_LONGLONG_FMT +#define NPY_UINT64_FMT NPY_ULONGLONG_FMT +# define MyPyLong_FromInt64 PyLong_FromLongLong +# define MyPyLong_AsInt64 PyLong_AsLongLong +# endif +# define NPY_MAX_LONGLONG NPY_MAX_INT64 +# define NPY_MIN_LONGLONG NPY_MIN_INT64 +# define NPY_MAX_ULONGLONG NPY_MAX_UINT64 +#endif + +#if NPY_BITSOF_INT == 8 +#ifndef NPY_INT8 +#define NPY_INT8 NPY_INT +#define NPY_UINT8 NPY_UINT + typedef int npy_int8; + typedef unsigned int npy_uint8; +# define PyInt8ScalarObject PyIntScalarObject +# define PyInt8ArrType_Type PyIntArrType_Type +# define PyUInt8ScalarObject PyUIntScalarObject +# define PyUInt8ArrType_Type PyUIntArrType_Type +#define NPY_INT8_FMT NPY_INT_FMT +#define NPY_UINT8_FMT NPY_UINT_FMT +#endif +#elif NPY_BITSOF_INT == 16 +#ifndef NPY_INT16 +#define NPY_INT16 NPY_INT +#define NPY_UINT16 NPY_UINT + typedef int npy_int16; + typedef unsigned int npy_uint16; +# define PyInt16ScalarObject PyIntScalarObject +# define PyInt16ArrType_Type PyIntArrType_Type +# define PyUInt16ScalarObject PyIntUScalarObject +# define PyUInt16ArrType_Type PyIntUArrType_Type +#define NPY_INT16_FMT NPY_INT_FMT +#define NPY_UINT16_FMT NPY_UINT_FMT +#endif +#elif NPY_BITSOF_INT == 32 +#ifndef NPY_INT32 +#define NPY_INT32 NPY_INT +#define NPY_UINT32 NPY_UINT + typedef int npy_int32; + typedef unsigned int npy_uint32; + typedef unsigned int npy_ucs4; +# define PyInt32ScalarObject PyIntScalarObject +# define PyInt32ArrType_Type PyIntArrType_Type +# define PyUInt32ScalarObject PyUIntScalarObject +# define PyUInt32ArrType_Type PyUIntArrType_Type +#define NPY_INT32_FMT NPY_INT_FMT +#define NPY_UINT32_FMT NPY_UINT_FMT +#endif +#elif NPY_BITSOF_INT == 64 +#ifndef NPY_INT64 +#define NPY_INT64 NPY_INT +#define NPY_UINT64 NPY_UINT + typedef int npy_int64; + typedef unsigned int npy_uint64; +# define PyInt64ScalarObject PyIntScalarObject +# define PyInt64ArrType_Type PyIntArrType_Type +# define PyUInt64ScalarObject PyUIntScalarObject +# define PyUInt64ArrType_Type PyUIntArrType_Type +#define NPY_INT64_FMT NPY_INT_FMT +#define NPY_UINT64_FMT NPY_UINT_FMT +# define MyPyLong_FromInt64 PyLong_FromLong +# define MyPyLong_AsInt64 PyLong_AsLong +#endif +#endif + +#if NPY_BITSOF_SHORT == 8 +#ifndef NPY_INT8 +#define NPY_INT8 NPY_SHORT +#define NPY_UINT8 NPY_USHORT + typedef short npy_int8; + typedef unsigned short npy_uint8; +# define PyInt8ScalarObject PyShortScalarObject +# define PyInt8ArrType_Type PyShortArrType_Type +# define PyUInt8ScalarObject PyUShortScalarObject +# define PyUInt8ArrType_Type PyUShortArrType_Type +#define NPY_INT8_FMT NPY_SHORT_FMT +#define NPY_UINT8_FMT NPY_USHORT_FMT +#endif +#elif NPY_BITSOF_SHORT == 16 +#ifndef NPY_INT16 +#define NPY_INT16 NPY_SHORT +#define NPY_UINT16 NPY_USHORT + typedef short npy_int16; + typedef unsigned short npy_uint16; +# define PyInt16ScalarObject PyShortScalarObject +# define PyInt16ArrType_Type PyShortArrType_Type +# define PyUInt16ScalarObject PyUShortScalarObject +# define PyUInt16ArrType_Type PyUShortArrType_Type +#define NPY_INT16_FMT NPY_SHORT_FMT +#define NPY_UINT16_FMT NPY_USHORT_FMT +#endif +#elif NPY_BITSOF_SHORT == 32 +#ifndef NPY_INT32 +#define NPY_INT32 NPY_SHORT +#define NPY_UINT32 NPY_USHORT + typedef short npy_int32; + typedef unsigned short npy_uint32; + typedef unsigned short npy_ucs4; +# define PyInt32ScalarObject PyShortScalarObject +# define PyInt32ArrType_Type PyShortArrType_Type +# define PyUInt32ScalarObject PyUShortScalarObject +# define PyUInt32ArrType_Type PyUShortArrType_Type +#define NPY_INT32_FMT NPY_SHORT_FMT +#define NPY_UINT32_FMT NPY_USHORT_FMT +#endif +#elif NPY_BITSOF_SHORT == 64 +#ifndef NPY_INT64 +#define NPY_INT64 NPY_SHORT +#define NPY_UINT64 NPY_USHORT + typedef short npy_int64; + typedef unsigned short npy_uint64; +# define PyInt64ScalarObject PyShortScalarObject +# define PyInt64ArrType_Type PyShortArrType_Type +# define PyUInt64ScalarObject PyUShortScalarObject +# define PyUInt64ArrType_Type PyUShortArrType_Type +#define NPY_INT64_FMT NPY_SHORT_FMT +#define NPY_UINT64_FMT NPY_USHORT_FMT +# define MyPyLong_FromInt64 PyLong_FromLong +# define MyPyLong_AsInt64 PyLong_AsLong +#endif +#endif + + +#if NPY_BITSOF_CHAR == 8 +#ifndef NPY_INT8 +#define NPY_INT8 NPY_BYTE +#define NPY_UINT8 NPY_UBYTE + typedef signed char npy_int8; + typedef unsigned char npy_uint8; +# define PyInt8ScalarObject PyByteScalarObject +# define PyInt8ArrType_Type PyByteArrType_Type +# define PyUInt8ScalarObject PyUByteScalarObject +# define PyUInt8ArrType_Type PyUByteArrType_Type +#define NPY_INT8_FMT NPY_BYTE_FMT +#define NPY_UINT8_FMT NPY_UBYTE_FMT +#endif +#elif NPY_BITSOF_CHAR == 16 +#ifndef NPY_INT16 +#define NPY_INT16 NPY_BYTE +#define NPY_UINT16 NPY_UBYTE + typedef signed char npy_int16; + typedef unsigned char npy_uint16; +# define PyInt16ScalarObject PyByteScalarObject +# define PyInt16ArrType_Type PyByteArrType_Type +# define PyUInt16ScalarObject PyUByteScalarObject +# define PyUInt16ArrType_Type PyUByteArrType_Type +#define NPY_INT16_FMT NPY_BYTE_FMT +#define NPY_UINT16_FMT NPY_UBYTE_FMT +#endif +#elif NPY_BITSOF_CHAR == 32 +#ifndef NPY_INT32 +#define NPY_INT32 NPY_BYTE +#define NPY_UINT32 NPY_UBYTE + typedef signed char npy_int32; + typedef unsigned char npy_uint32; + typedef unsigned char npy_ucs4; +# define PyInt32ScalarObject PyByteScalarObject +# define PyInt32ArrType_Type PyByteArrType_Type +# define PyUInt32ScalarObject PyUByteScalarObject +# define PyUInt32ArrType_Type PyUByteArrType_Type +#define NPY_INT32_FMT NPY_BYTE_FMT +#define NPY_UINT32_FMT NPY_UBYTE_FMT +#endif +#elif NPY_BITSOF_CHAR == 64 +#ifndef NPY_INT64 +#define NPY_INT64 NPY_BYTE +#define NPY_UINT64 NPY_UBYTE + typedef signed char npy_int64; + typedef unsigned char npy_uint64; +# define PyInt64ScalarObject PyByteScalarObject +# define PyInt64ArrType_Type PyByteArrType_Type +# define PyUInt64ScalarObject PyUByteScalarObject +# define PyUInt64ArrType_Type PyUByteArrType_Type +#define NPY_INT64_FMT NPY_BYTE_FMT +#define NPY_UINT64_FMT NPY_UBYTE_FMT +# define MyPyLong_FromInt64 PyLong_FromLong +# define MyPyLong_AsInt64 PyLong_AsLong +#endif +#elif NPY_BITSOF_CHAR == 128 +#endif + + + +#if NPY_BITSOF_DOUBLE == 32 +#ifndef NPY_FLOAT32 +#define NPY_FLOAT32 NPY_DOUBLE +#define NPY_COMPLEX64 NPY_CDOUBLE + typedef double npy_float32; + typedef npy_cdouble npy_complex64; +# define PyFloat32ScalarObject PyDoubleScalarObject +# define PyComplex64ScalarObject PyCDoubleScalarObject +# define PyFloat32ArrType_Type PyDoubleArrType_Type +# define PyComplex64ArrType_Type PyCDoubleArrType_Type +#define NPY_FLOAT32_FMT NPY_DOUBLE_FMT +#define NPY_COMPLEX64_FMT NPY_CDOUBLE_FMT +#endif +#elif NPY_BITSOF_DOUBLE == 64 +#ifndef NPY_FLOAT64 +#define NPY_FLOAT64 NPY_DOUBLE +#define NPY_COMPLEX128 NPY_CDOUBLE + typedef double npy_float64; + typedef npy_cdouble npy_complex128; +# define PyFloat64ScalarObject PyDoubleScalarObject +# define PyComplex128ScalarObject PyCDoubleScalarObject +# define PyFloat64ArrType_Type PyDoubleArrType_Type +# define PyComplex128ArrType_Type PyCDoubleArrType_Type +#define NPY_FLOAT64_FMT NPY_DOUBLE_FMT +#define NPY_COMPLEX128_FMT NPY_CDOUBLE_FMT +#endif +#elif NPY_BITSOF_DOUBLE == 80 +#ifndef NPY_FLOAT80 +#define NPY_FLOAT80 NPY_DOUBLE +#define NPY_COMPLEX160 NPY_CDOUBLE + typedef double npy_float80; + typedef npy_cdouble npy_complex160; +# define PyFloat80ScalarObject PyDoubleScalarObject +# define PyComplex160ScalarObject PyCDoubleScalarObject +# define PyFloat80ArrType_Type PyDoubleArrType_Type +# define PyComplex160ArrType_Type PyCDoubleArrType_Type +#define NPY_FLOAT80_FMT NPY_DOUBLE_FMT +#define NPY_COMPLEX160_FMT NPY_CDOUBLE_FMT +#endif +#elif NPY_BITSOF_DOUBLE == 96 +#ifndef NPY_FLOAT96 +#define NPY_FLOAT96 NPY_DOUBLE +#define NPY_COMPLEX192 NPY_CDOUBLE + typedef double npy_float96; + typedef npy_cdouble npy_complex192; +# define PyFloat96ScalarObject PyDoubleScalarObject +# define PyComplex192ScalarObject PyCDoubleScalarObject +# define PyFloat96ArrType_Type PyDoubleArrType_Type +# define PyComplex192ArrType_Type PyCDoubleArrType_Type +#define NPY_FLOAT96_FMT NPY_DOUBLE_FMT +#define NPY_COMPLEX192_FMT NPY_CDOUBLE_FMT +#endif +#elif NPY_BITSOF_DOUBLE == 128 +#ifndef NPY_FLOAT128 +#define NPY_FLOAT128 NPY_DOUBLE +#define NPY_COMPLEX256 NPY_CDOUBLE + typedef double npy_float128; + typedef npy_cdouble npy_complex256; +# define PyFloat128ScalarObject PyDoubleScalarObject +# define PyComplex256ScalarObject PyCDoubleScalarObject +# define PyFloat128ArrType_Type PyDoubleArrType_Type +# define PyComplex256ArrType_Type PyCDoubleArrType_Type +#define NPY_FLOAT128_FMT NPY_DOUBLE_FMT +#define NPY_COMPLEX256_FMT NPY_CDOUBLE_FMT +#endif +#endif + + + +#if NPY_BITSOF_FLOAT == 32 +#ifndef NPY_FLOAT32 +#define NPY_FLOAT32 NPY_FLOAT +#define NPY_COMPLEX64 NPY_CFLOAT + typedef float npy_float32; + typedef npy_cfloat npy_complex64; +# define PyFloat32ScalarObject PyFloatScalarObject +# define PyComplex64ScalarObject PyCFloatScalarObject +# define PyFloat32ArrType_Type PyFloatArrType_Type +# define PyComplex64ArrType_Type PyCFloatArrType_Type +#define NPY_FLOAT32_FMT NPY_FLOAT_FMT +#define NPY_COMPLEX64_FMT NPY_CFLOAT_FMT +#endif +#elif NPY_BITSOF_FLOAT == 64 +#ifndef NPY_FLOAT64 +#define NPY_FLOAT64 NPY_FLOAT +#define NPY_COMPLEX128 NPY_CFLOAT + typedef float npy_float64; + typedef npy_cfloat npy_complex128; +# define PyFloat64ScalarObject PyFloatScalarObject +# define PyComplex128ScalarObject PyCFloatScalarObject +# define PyFloat64ArrType_Type PyFloatArrType_Type +# define PyComplex128ArrType_Type PyCFloatArrType_Type +#define NPY_FLOAT64_FMT NPY_FLOAT_FMT +#define NPY_COMPLEX128_FMT NPY_CFLOAT_FMT +#endif +#elif NPY_BITSOF_FLOAT == 80 +#ifndef NPY_FLOAT80 +#define NPY_FLOAT80 NPY_FLOAT +#define NPY_COMPLEX160 NPY_CFLOAT + typedef float npy_float80; + typedef npy_cfloat npy_complex160; +# define PyFloat80ScalarObject PyFloatScalarObject +# define PyComplex160ScalarObject PyCFloatScalarObject +# define PyFloat80ArrType_Type PyFloatArrType_Type +# define PyComplex160ArrType_Type PyCFloatArrType_Type +#define NPY_FLOAT80_FMT NPY_FLOAT_FMT +#define NPY_COMPLEX160_FMT NPY_CFLOAT_FMT +#endif +#elif NPY_BITSOF_FLOAT == 96 +#ifndef NPY_FLOAT96 +#define NPY_FLOAT96 NPY_FLOAT +#define NPY_COMPLEX192 NPY_CFLOAT + typedef float npy_float96; + typedef npy_cfloat npy_complex192; +# define PyFloat96ScalarObject PyFloatScalarObject +# define PyComplex192ScalarObject PyCFloatScalarObject +# define PyFloat96ArrType_Type PyFloatArrType_Type +# define PyComplex192ArrType_Type PyCFloatArrType_Type +#define NPY_FLOAT96_FMT NPY_FLOAT_FMT +#define NPY_COMPLEX192_FMT NPY_CFLOAT_FMT +#endif +#elif NPY_BITSOF_FLOAT == 128 +#ifndef NPY_FLOAT128 +#define NPY_FLOAT128 NPY_FLOAT +#define NPY_COMPLEX256 NPY_CFLOAT + typedef float npy_float128; + typedef npy_cfloat npy_complex256; +# define PyFloat128ScalarObject PyFloatScalarObject +# define PyComplex256ScalarObject PyCFloatScalarObject +# define PyFloat128ArrType_Type PyFloatArrType_Type +# define PyComplex256ArrType_Type PyCFloatArrType_Type +#define NPY_FLOAT128_FMT NPY_FLOAT_FMT +#define NPY_COMPLEX256_FMT NPY_CFLOAT_FMT +#endif +#endif + +/* half/float16 isn't a floating-point type in C */ +#define NPY_FLOAT16 NPY_HALF +typedef npy_uint16 npy_half; +typedef npy_half npy_float16; + +#if NPY_BITSOF_LONGDOUBLE == 32 +#ifndef NPY_FLOAT32 +#define NPY_FLOAT32 NPY_LONGDOUBLE +#define NPY_COMPLEX64 NPY_CLONGDOUBLE + typedef npy_longdouble npy_float32; + typedef npy_clongdouble npy_complex64; +# define PyFloat32ScalarObject PyLongDoubleScalarObject +# define PyComplex64ScalarObject PyCLongDoubleScalarObject +# define PyFloat32ArrType_Type PyLongDoubleArrType_Type +# define PyComplex64ArrType_Type PyCLongDoubleArrType_Type +#define NPY_FLOAT32_FMT NPY_LONGDOUBLE_FMT +#define NPY_COMPLEX64_FMT NPY_CLONGDOUBLE_FMT +#endif +#elif NPY_BITSOF_LONGDOUBLE == 64 +#ifndef NPY_FLOAT64 +#define NPY_FLOAT64 NPY_LONGDOUBLE +#define NPY_COMPLEX128 NPY_CLONGDOUBLE + typedef npy_longdouble npy_float64; + typedef npy_clongdouble npy_complex128; +# define PyFloat64ScalarObject PyLongDoubleScalarObject +# define PyComplex128ScalarObject PyCLongDoubleScalarObject +# define PyFloat64ArrType_Type PyLongDoubleArrType_Type +# define PyComplex128ArrType_Type PyCLongDoubleArrType_Type +#define NPY_FLOAT64_FMT NPY_LONGDOUBLE_FMT +#define NPY_COMPLEX128_FMT NPY_CLONGDOUBLE_FMT +#endif +#elif NPY_BITSOF_LONGDOUBLE == 80 +#ifndef NPY_FLOAT80 +#define NPY_FLOAT80 NPY_LONGDOUBLE +#define NPY_COMPLEX160 NPY_CLONGDOUBLE + typedef npy_longdouble npy_float80; + typedef npy_clongdouble npy_complex160; +# define PyFloat80ScalarObject PyLongDoubleScalarObject +# define PyComplex160ScalarObject PyCLongDoubleScalarObject +# define PyFloat80ArrType_Type PyLongDoubleArrType_Type +# define PyComplex160ArrType_Type PyCLongDoubleArrType_Type +#define NPY_FLOAT80_FMT NPY_LONGDOUBLE_FMT +#define NPY_COMPLEX160_FMT NPY_CLONGDOUBLE_FMT +#endif +#elif NPY_BITSOF_LONGDOUBLE == 96 +#ifndef NPY_FLOAT96 +#define NPY_FLOAT96 NPY_LONGDOUBLE +#define NPY_COMPLEX192 NPY_CLONGDOUBLE + typedef npy_longdouble npy_float96; + typedef npy_clongdouble npy_complex192; +# define PyFloat96ScalarObject PyLongDoubleScalarObject +# define PyComplex192ScalarObject PyCLongDoubleScalarObject +# define PyFloat96ArrType_Type PyLongDoubleArrType_Type +# define PyComplex192ArrType_Type PyCLongDoubleArrType_Type +#define NPY_FLOAT96_FMT NPY_LONGDOUBLE_FMT +#define NPY_COMPLEX192_FMT NPY_CLONGDOUBLE_FMT +#endif +#elif NPY_BITSOF_LONGDOUBLE == 128 +#ifndef NPY_FLOAT128 +#define NPY_FLOAT128 NPY_LONGDOUBLE +#define NPY_COMPLEX256 NPY_CLONGDOUBLE + typedef npy_longdouble npy_float128; + typedef npy_clongdouble npy_complex256; +# define PyFloat128ScalarObject PyLongDoubleScalarObject +# define PyComplex256ScalarObject PyCLongDoubleScalarObject +# define PyFloat128ArrType_Type PyLongDoubleArrType_Type +# define PyComplex256ArrType_Type PyCLongDoubleArrType_Type +#define NPY_FLOAT128_FMT NPY_LONGDOUBLE_FMT +#define NPY_COMPLEX256_FMT NPY_CLONGDOUBLE_FMT +#endif +#endif + +/* datetime typedefs */ +typedef npy_int64 npy_timedelta; +typedef npy_int64 npy_datetime; +#define NPY_DATETIME_FMT NPY_INT64_FMT +#define NPY_TIMEDELTA_FMT NPY_INT64_FMT + +/* End of typedefs for numarray style bit-width names */ + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_NPY_COMMON_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_cpu.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_cpu.h new file mode 100644 index 0000000000000000000000000000000000000000..d3a29da57f36b6d594be41c69a1e8bc84b6f2085 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_cpu.h @@ -0,0 +1,126 @@ +/* + * This set (target) cpu specific macros: + * - Possible values: + * NPY_CPU_X86 + * NPY_CPU_AMD64 + * NPY_CPU_PPC + * NPY_CPU_PPC64 + * NPY_CPU_PPC64LE + * NPY_CPU_SPARC + * NPY_CPU_S390 + * NPY_CPU_IA64 + * NPY_CPU_HPPA + * NPY_CPU_ALPHA + * NPY_CPU_ARMEL + * NPY_CPU_ARMEB + * NPY_CPU_SH_LE + * NPY_CPU_SH_BE + * NPY_CPU_ARCEL + * NPY_CPU_ARCEB + * NPY_CPU_RISCV64 + * NPY_CPU_RISCV32 + * NPY_CPU_LOONGARCH + * NPY_CPU_SW_64 + * NPY_CPU_WASM + */ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_CPU_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_NPY_CPU_H_ + +#include "numpyconfig.h" + +#if defined( __i386__ ) || defined(i386) || defined(_M_IX86) + /* + * __i386__ is defined by gcc and Intel compiler on Linux, + * _M_IX86 by VS compiler, + * i386 by Sun compilers on opensolaris at least + */ + #define NPY_CPU_X86 +#elif defined(__x86_64__) || defined(__amd64__) || defined(__x86_64) || defined(_M_AMD64) + /* + * both __x86_64__ and __amd64__ are defined by gcc + * __x86_64 defined by sun compiler on opensolaris at least + * _M_AMD64 defined by MS compiler + */ + #define NPY_CPU_AMD64 +#elif defined(__powerpc64__) && defined(__LITTLE_ENDIAN__) + #define NPY_CPU_PPC64LE +#elif defined(__powerpc64__) && defined(__BIG_ENDIAN__) + #define NPY_CPU_PPC64 +#elif defined(__ppc__) || defined(__powerpc__) || defined(_ARCH_PPC) + /* + * __ppc__ is defined by gcc, I remember having seen __powerpc__ once, + * but can't find it ATM + * _ARCH_PPC is used by at least gcc on AIX + * As __powerpc__ and _ARCH_PPC are also defined by PPC64 check + * for those specifically first before defaulting to ppc + */ + #define NPY_CPU_PPC +#elif defined(__sparc__) || defined(__sparc) + /* __sparc__ is defined by gcc and Forte (e.g. Sun) compilers */ + #define NPY_CPU_SPARC +#elif defined(__s390__) + #define NPY_CPU_S390 +#elif defined(__ia64) + #define NPY_CPU_IA64 +#elif defined(__hppa) + #define NPY_CPU_HPPA +#elif defined(__alpha__) + #define NPY_CPU_ALPHA +#elif defined(__arm__) || defined(__aarch64__) || defined(_M_ARM64) + /* _M_ARM64 is defined in MSVC for ARM64 compilation on Windows */ + #if defined(__ARMEB__) || defined(__AARCH64EB__) + #if defined(__ARM_32BIT_STATE) + #define NPY_CPU_ARMEB_AARCH32 + #elif defined(__ARM_64BIT_STATE) + #define NPY_CPU_ARMEB_AARCH64 + #else + #define NPY_CPU_ARMEB + #endif + #elif defined(__ARMEL__) || defined(__AARCH64EL__) || defined(_M_ARM64) + #if defined(__ARM_32BIT_STATE) + #define NPY_CPU_ARMEL_AARCH32 + #elif defined(__ARM_64BIT_STATE) || defined(_M_ARM64) || defined(__AARCH64EL__) + #define NPY_CPU_ARMEL_AARCH64 + #else + #define NPY_CPU_ARMEL + #endif + #else + # error Unknown ARM CPU, please report this to numpy maintainers with \ + information about your platform (OS, CPU and compiler) + #endif +#elif defined(__sh__) && defined(__LITTLE_ENDIAN__) + #define NPY_CPU_SH_LE +#elif defined(__sh__) && defined(__BIG_ENDIAN__) + #define NPY_CPU_SH_BE +#elif defined(__MIPSEL__) + #define NPY_CPU_MIPSEL +#elif defined(__MIPSEB__) + #define NPY_CPU_MIPSEB +#elif defined(__or1k__) + #define NPY_CPU_OR1K +#elif defined(__mc68000__) + #define NPY_CPU_M68K +#elif defined(__arc__) && defined(__LITTLE_ENDIAN__) + #define NPY_CPU_ARCEL +#elif defined(__arc__) && defined(__BIG_ENDIAN__) + #define NPY_CPU_ARCEB +#elif defined(__riscv) + #if __riscv_xlen == 64 + #define NPY_CPU_RISCV64 + #elif __riscv_xlen == 32 + #define NPY_CPU_RISCV32 + #endif +#elif defined(__loongarch_lp64) + #define NPY_CPU_LOONGARCH64 +#elif defined(__sw_64__) + #define NPY_CPU_SW_64 +#elif defined(__EMSCRIPTEN__) || defined(__wasm__) + /* __EMSCRIPTEN__ is defined by emscripten: an LLVM-to-Web compiler */ + /* __wasm__ is defined by clang when targeting wasm */ + #define NPY_CPU_WASM +#else + #error Unknown CPU, please report this to numpy maintainers with \ + information about your platform (OS, CPU and compiler) +#endif + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_NPY_CPU_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_endian.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_endian.h new file mode 100644 index 0000000000000000000000000000000000000000..ecb4b000763df6122b5e32dcb9a0156747a28e84 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_endian.h @@ -0,0 +1,79 @@ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_ENDIAN_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_NPY_ENDIAN_H_ + +/* + * NPY_BYTE_ORDER is set to the same value as BYTE_ORDER set by glibc in + * endian.h + */ + +#if defined(NPY_HAVE_ENDIAN_H) || defined(NPY_HAVE_SYS_ENDIAN_H) + /* Use endian.h if available */ + + #if defined(NPY_HAVE_ENDIAN_H) + #include + #elif defined(NPY_HAVE_SYS_ENDIAN_H) + #include + #endif + + #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && defined(LITTLE_ENDIAN) + #define NPY_BYTE_ORDER BYTE_ORDER + #define NPY_LITTLE_ENDIAN LITTLE_ENDIAN + #define NPY_BIG_ENDIAN BIG_ENDIAN + #elif defined(_BYTE_ORDER) && defined(_BIG_ENDIAN) && defined(_LITTLE_ENDIAN) + #define NPY_BYTE_ORDER _BYTE_ORDER + #define NPY_LITTLE_ENDIAN _LITTLE_ENDIAN + #define NPY_BIG_ENDIAN _BIG_ENDIAN + #elif defined(__BYTE_ORDER) && defined(__BIG_ENDIAN) && defined(__LITTLE_ENDIAN) + #define NPY_BYTE_ORDER __BYTE_ORDER + #define NPY_LITTLE_ENDIAN __LITTLE_ENDIAN + #define NPY_BIG_ENDIAN __BIG_ENDIAN + #endif +#endif + +#ifndef NPY_BYTE_ORDER + /* Set endianness info using target CPU */ + #include "npy_cpu.h" + + #define NPY_LITTLE_ENDIAN 1234 + #define NPY_BIG_ENDIAN 4321 + + #if defined(NPY_CPU_X86) \ + || defined(NPY_CPU_AMD64) \ + || defined(NPY_CPU_IA64) \ + || defined(NPY_CPU_ALPHA) \ + || defined(NPY_CPU_ARMEL) \ + || defined(NPY_CPU_ARMEL_AARCH32) \ + || defined(NPY_CPU_ARMEL_AARCH64) \ + || defined(NPY_CPU_SH_LE) \ + || defined(NPY_CPU_MIPSEL) \ + || defined(NPY_CPU_PPC64LE) \ + || defined(NPY_CPU_ARCEL) \ + || defined(NPY_CPU_RISCV64) \ + || defined(NPY_CPU_RISCV32) \ + || defined(NPY_CPU_LOONGARCH) \ + || defined(NPY_CPU_SW_64) \ + || defined(NPY_CPU_WASM) + #define NPY_BYTE_ORDER NPY_LITTLE_ENDIAN + + #elif defined(NPY_CPU_PPC) \ + || defined(NPY_CPU_SPARC) \ + || defined(NPY_CPU_S390) \ + || defined(NPY_CPU_HPPA) \ + || defined(NPY_CPU_PPC64) \ + || defined(NPY_CPU_ARMEB) \ + || defined(NPY_CPU_ARMEB_AARCH32) \ + || defined(NPY_CPU_ARMEB_AARCH64) \ + || defined(NPY_CPU_SH_BE) \ + || defined(NPY_CPU_MIPSEB) \ + || defined(NPY_CPU_OR1K) \ + || defined(NPY_CPU_M68K) \ + || defined(NPY_CPU_ARCEB) + #define NPY_BYTE_ORDER NPY_BIG_ENDIAN + + #else + #error Unknown CPU: can not set endianness + #endif + +#endif + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_NPY_ENDIAN_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_math.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_math.h new file mode 100644 index 0000000000000000000000000000000000000000..abc784bc686c18d162a4730a7c60393622023aae --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_math.h @@ -0,0 +1,602 @@ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_MATH_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_NPY_MATH_H_ + +#include + +#include + +/* By adding static inline specifiers to npy_math function definitions when + appropriate, compiler is given the opportunity to optimize */ +#if NPY_INLINE_MATH +#define NPY_INPLACE static inline +#else +#define NPY_INPLACE +#endif + + +#ifdef __cplusplus +extern "C" { +#endif + +#define PyArray_MAX(a,b) (((a)>(b))?(a):(b)) +#define PyArray_MIN(a,b) (((a)<(b))?(a):(b)) + +/* + * NAN and INFINITY like macros (same behavior as glibc for NAN, same as C99 + * for INFINITY) + * + * XXX: I should test whether INFINITY and NAN are available on the platform + */ +static inline float __npy_inff(void) +{ + const union { npy_uint32 __i; float __f;} __bint = {0x7f800000UL}; + return __bint.__f; +} + +static inline float __npy_nanf(void) +{ + const union { npy_uint32 __i; float __f;} __bint = {0x7fc00000UL}; + return __bint.__f; +} + +static inline float __npy_pzerof(void) +{ + const union { npy_uint32 __i; float __f;} __bint = {0x00000000UL}; + return __bint.__f; +} + +static inline float __npy_nzerof(void) +{ + const union { npy_uint32 __i; float __f;} __bint = {0x80000000UL}; + return __bint.__f; +} + +#define NPY_INFINITYF __npy_inff() +#define NPY_NANF __npy_nanf() +#define NPY_PZEROF __npy_pzerof() +#define NPY_NZEROF __npy_nzerof() + +#define NPY_INFINITY ((npy_double)NPY_INFINITYF) +#define NPY_NAN ((npy_double)NPY_NANF) +#define NPY_PZERO ((npy_double)NPY_PZEROF) +#define NPY_NZERO ((npy_double)NPY_NZEROF) + +#define NPY_INFINITYL ((npy_longdouble)NPY_INFINITYF) +#define NPY_NANL ((npy_longdouble)NPY_NANF) +#define NPY_PZEROL ((npy_longdouble)NPY_PZEROF) +#define NPY_NZEROL ((npy_longdouble)NPY_NZEROF) + +/* + * Useful constants + */ +#define NPY_E 2.718281828459045235360287471352662498 /* e */ +#define NPY_LOG2E 1.442695040888963407359924681001892137 /* log_2 e */ +#define NPY_LOG10E 0.434294481903251827651128918916605082 /* log_10 e */ +#define NPY_LOGE2 0.693147180559945309417232121458176568 /* log_e 2 */ +#define NPY_LOGE10 2.302585092994045684017991454684364208 /* log_e 10 */ +#define NPY_PI 3.141592653589793238462643383279502884 /* pi */ +#define NPY_PI_2 1.570796326794896619231321691639751442 /* pi/2 */ +#define NPY_PI_4 0.785398163397448309615660845819875721 /* pi/4 */ +#define NPY_1_PI 0.318309886183790671537767526745028724 /* 1/pi */ +#define NPY_2_PI 0.636619772367581343075535053490057448 /* 2/pi */ +#define NPY_EULER 0.577215664901532860606512090082402431 /* Euler constant */ +#define NPY_SQRT2 1.414213562373095048801688724209698079 /* sqrt(2) */ +#define NPY_SQRT1_2 0.707106781186547524400844362104849039 /* 1/sqrt(2) */ + +#define NPY_Ef 2.718281828459045235360287471352662498F /* e */ +#define NPY_LOG2Ef 1.442695040888963407359924681001892137F /* log_2 e */ +#define NPY_LOG10Ef 0.434294481903251827651128918916605082F /* log_10 e */ +#define NPY_LOGE2f 0.693147180559945309417232121458176568F /* log_e 2 */ +#define NPY_LOGE10f 2.302585092994045684017991454684364208F /* log_e 10 */ +#define NPY_PIf 3.141592653589793238462643383279502884F /* pi */ +#define NPY_PI_2f 1.570796326794896619231321691639751442F /* pi/2 */ +#define NPY_PI_4f 0.785398163397448309615660845819875721F /* pi/4 */ +#define NPY_1_PIf 0.318309886183790671537767526745028724F /* 1/pi */ +#define NPY_2_PIf 0.636619772367581343075535053490057448F /* 2/pi */ +#define NPY_EULERf 0.577215664901532860606512090082402431F /* Euler constant */ +#define NPY_SQRT2f 1.414213562373095048801688724209698079F /* sqrt(2) */ +#define NPY_SQRT1_2f 0.707106781186547524400844362104849039F /* 1/sqrt(2) */ + +#define NPY_El 2.718281828459045235360287471352662498L /* e */ +#define NPY_LOG2El 1.442695040888963407359924681001892137L /* log_2 e */ +#define NPY_LOG10El 0.434294481903251827651128918916605082L /* log_10 e */ +#define NPY_LOGE2l 0.693147180559945309417232121458176568L /* log_e 2 */ +#define NPY_LOGE10l 2.302585092994045684017991454684364208L /* log_e 10 */ +#define NPY_PIl 3.141592653589793238462643383279502884L /* pi */ +#define NPY_PI_2l 1.570796326794896619231321691639751442L /* pi/2 */ +#define NPY_PI_4l 0.785398163397448309615660845819875721L /* pi/4 */ +#define NPY_1_PIl 0.318309886183790671537767526745028724L /* 1/pi */ +#define NPY_2_PIl 0.636619772367581343075535053490057448L /* 2/pi */ +#define NPY_EULERl 0.577215664901532860606512090082402431L /* Euler constant */ +#define NPY_SQRT2l 1.414213562373095048801688724209698079L /* sqrt(2) */ +#define NPY_SQRT1_2l 0.707106781186547524400844362104849039L /* 1/sqrt(2) */ + +/* + * Integer functions. + */ +NPY_INPLACE npy_uint npy_gcdu(npy_uint a, npy_uint b); +NPY_INPLACE npy_uint npy_lcmu(npy_uint a, npy_uint b); +NPY_INPLACE npy_ulong npy_gcdul(npy_ulong a, npy_ulong b); +NPY_INPLACE npy_ulong npy_lcmul(npy_ulong a, npy_ulong b); +NPY_INPLACE npy_ulonglong npy_gcdull(npy_ulonglong a, npy_ulonglong b); +NPY_INPLACE npy_ulonglong npy_lcmull(npy_ulonglong a, npy_ulonglong b); + +NPY_INPLACE npy_int npy_gcd(npy_int a, npy_int b); +NPY_INPLACE npy_int npy_lcm(npy_int a, npy_int b); +NPY_INPLACE npy_long npy_gcdl(npy_long a, npy_long b); +NPY_INPLACE npy_long npy_lcml(npy_long a, npy_long b); +NPY_INPLACE npy_longlong npy_gcdll(npy_longlong a, npy_longlong b); +NPY_INPLACE npy_longlong npy_lcmll(npy_longlong a, npy_longlong b); + +NPY_INPLACE npy_ubyte npy_rshiftuhh(npy_ubyte a, npy_ubyte b); +NPY_INPLACE npy_ubyte npy_lshiftuhh(npy_ubyte a, npy_ubyte b); +NPY_INPLACE npy_ushort npy_rshiftuh(npy_ushort a, npy_ushort b); +NPY_INPLACE npy_ushort npy_lshiftuh(npy_ushort a, npy_ushort b); +NPY_INPLACE npy_uint npy_rshiftu(npy_uint a, npy_uint b); +NPY_INPLACE npy_uint npy_lshiftu(npy_uint a, npy_uint b); +NPY_INPLACE npy_ulong npy_rshiftul(npy_ulong a, npy_ulong b); +NPY_INPLACE npy_ulong npy_lshiftul(npy_ulong a, npy_ulong b); +NPY_INPLACE npy_ulonglong npy_rshiftull(npy_ulonglong a, npy_ulonglong b); +NPY_INPLACE npy_ulonglong npy_lshiftull(npy_ulonglong a, npy_ulonglong b); + +NPY_INPLACE npy_byte npy_rshifthh(npy_byte a, npy_byte b); +NPY_INPLACE npy_byte npy_lshifthh(npy_byte a, npy_byte b); +NPY_INPLACE npy_short npy_rshifth(npy_short a, npy_short b); +NPY_INPLACE npy_short npy_lshifth(npy_short a, npy_short b); +NPY_INPLACE npy_int npy_rshift(npy_int a, npy_int b); +NPY_INPLACE npy_int npy_lshift(npy_int a, npy_int b); +NPY_INPLACE npy_long npy_rshiftl(npy_long a, npy_long b); +NPY_INPLACE npy_long npy_lshiftl(npy_long a, npy_long b); +NPY_INPLACE npy_longlong npy_rshiftll(npy_longlong a, npy_longlong b); +NPY_INPLACE npy_longlong npy_lshiftll(npy_longlong a, npy_longlong b); + +NPY_INPLACE uint8_t npy_popcountuhh(npy_ubyte a); +NPY_INPLACE uint8_t npy_popcountuh(npy_ushort a); +NPY_INPLACE uint8_t npy_popcountu(npy_uint a); +NPY_INPLACE uint8_t npy_popcountul(npy_ulong a); +NPY_INPLACE uint8_t npy_popcountull(npy_ulonglong a); +NPY_INPLACE uint8_t npy_popcounthh(npy_byte a); +NPY_INPLACE uint8_t npy_popcounth(npy_short a); +NPY_INPLACE uint8_t npy_popcount(npy_int a); +NPY_INPLACE uint8_t npy_popcountl(npy_long a); +NPY_INPLACE uint8_t npy_popcountll(npy_longlong a); + +/* + * C99 double math funcs that need fixups or are blocklist-able + */ +NPY_INPLACE double npy_sin(double x); +NPY_INPLACE double npy_cos(double x); +NPY_INPLACE double npy_tan(double x); +NPY_INPLACE double npy_hypot(double x, double y); +NPY_INPLACE double npy_log2(double x); +NPY_INPLACE double npy_atan2(double x, double y); + +/* Mandatory C99 double math funcs, no blocklisting or fixups */ +/* defined for legacy reasons, should be deprecated at some point */ +#define npy_sinh sinh +#define npy_cosh cosh +#define npy_tanh tanh +#define npy_asin asin +#define npy_acos acos +#define npy_atan atan +#define npy_log log +#define npy_log10 log10 +#define npy_cbrt cbrt +#define npy_fabs fabs +#define npy_ceil ceil +#define npy_fmod fmod +#define npy_floor floor +#define npy_expm1 expm1 +#define npy_log1p log1p +#define npy_acosh acosh +#define npy_asinh asinh +#define npy_atanh atanh +#define npy_rint rint +#define npy_trunc trunc +#define npy_exp2 exp2 +#define npy_frexp frexp +#define npy_ldexp ldexp +#define npy_copysign copysign +#define npy_exp exp +#define npy_sqrt sqrt +#define npy_pow pow +#define npy_modf modf +#define npy_nextafter nextafter + +double npy_spacing(double x); + +/* + * IEEE 754 fpu handling + */ + +/* use builtins to avoid function calls in tight loops + * only available if npy_config.h is available (= numpys own build) */ +#ifdef HAVE___BUILTIN_ISNAN + #define npy_isnan(x) __builtin_isnan(x) +#else + #define npy_isnan(x) isnan(x) +#endif + + +/* only available if npy_config.h is available (= numpys own build) */ +#ifdef HAVE___BUILTIN_ISFINITE + #define npy_isfinite(x) __builtin_isfinite(x) +#else + #define npy_isfinite(x) isfinite((x)) +#endif + +/* only available if npy_config.h is available (= numpys own build) */ +#ifdef HAVE___BUILTIN_ISINF + #define npy_isinf(x) __builtin_isinf(x) +#else + #define npy_isinf(x) isinf((x)) +#endif + +#define npy_signbit(x) signbit((x)) + +/* + * float C99 math funcs that need fixups or are blocklist-able + */ +NPY_INPLACE float npy_sinf(float x); +NPY_INPLACE float npy_cosf(float x); +NPY_INPLACE float npy_tanf(float x); +NPY_INPLACE float npy_expf(float x); +NPY_INPLACE float npy_sqrtf(float x); +NPY_INPLACE float npy_hypotf(float x, float y); +NPY_INPLACE float npy_log2f(float x); +NPY_INPLACE float npy_atan2f(float x, float y); +NPY_INPLACE float npy_powf(float x, float y); +NPY_INPLACE float npy_modff(float x, float* y); + +/* Mandatory C99 float math funcs, no blocklisting or fixups */ +/* defined for legacy reasons, should be deprecated at some point */ + +#define npy_sinhf sinhf +#define npy_coshf coshf +#define npy_tanhf tanhf +#define npy_asinf asinf +#define npy_acosf acosf +#define npy_atanf atanf +#define npy_logf logf +#define npy_log10f log10f +#define npy_cbrtf cbrtf +#define npy_fabsf fabsf +#define npy_ceilf ceilf +#define npy_fmodf fmodf +#define npy_floorf floorf +#define npy_expm1f expm1f +#define npy_log1pf log1pf +#define npy_asinhf asinhf +#define npy_acoshf acoshf +#define npy_atanhf atanhf +#define npy_rintf rintf +#define npy_truncf truncf +#define npy_exp2f exp2f +#define npy_frexpf frexpf +#define npy_ldexpf ldexpf +#define npy_copysignf copysignf +#define npy_nextafterf nextafterf + +float npy_spacingf(float x); + +/* + * long double C99 double math funcs that need fixups or are blocklist-able + */ +NPY_INPLACE npy_longdouble npy_sinl(npy_longdouble x); +NPY_INPLACE npy_longdouble npy_cosl(npy_longdouble x); +NPY_INPLACE npy_longdouble npy_tanl(npy_longdouble x); +NPY_INPLACE npy_longdouble npy_expl(npy_longdouble x); +NPY_INPLACE npy_longdouble npy_sqrtl(npy_longdouble x); +NPY_INPLACE npy_longdouble npy_hypotl(npy_longdouble x, npy_longdouble y); +NPY_INPLACE npy_longdouble npy_log2l(npy_longdouble x); +NPY_INPLACE npy_longdouble npy_atan2l(npy_longdouble x, npy_longdouble y); +NPY_INPLACE npy_longdouble npy_powl(npy_longdouble x, npy_longdouble y); +NPY_INPLACE npy_longdouble npy_modfl(npy_longdouble x, npy_longdouble* y); + +/* Mandatory C99 double math funcs, no blocklisting or fixups */ +/* defined for legacy reasons, should be deprecated at some point */ +#define npy_sinhl sinhl +#define npy_coshl coshl +#define npy_tanhl tanhl +#define npy_fabsl fabsl +#define npy_floorl floorl +#define npy_ceill ceill +#define npy_rintl rintl +#define npy_truncl truncl +#define npy_cbrtl cbrtl +#define npy_log10l log10l +#define npy_logl logl +#define npy_expm1l expm1l +#define npy_asinl asinl +#define npy_acosl acosl +#define npy_atanl atanl +#define npy_asinhl asinhl +#define npy_acoshl acoshl +#define npy_atanhl atanhl +#define npy_log1pl log1pl +#define npy_exp2l exp2l +#define npy_fmodl fmodl +#define npy_frexpl frexpl +#define npy_ldexpl ldexpl +#define npy_copysignl copysignl +#define npy_nextafterl nextafterl + +npy_longdouble npy_spacingl(npy_longdouble x); + +/* + * Non standard functions + */ +NPY_INPLACE double npy_deg2rad(double x); +NPY_INPLACE double npy_rad2deg(double x); +NPY_INPLACE double npy_logaddexp(double x, double y); +NPY_INPLACE double npy_logaddexp2(double x, double y); +NPY_INPLACE double npy_divmod(double x, double y, double *modulus); +NPY_INPLACE double npy_heaviside(double x, double h0); + +NPY_INPLACE float npy_deg2radf(float x); +NPY_INPLACE float npy_rad2degf(float x); +NPY_INPLACE float npy_logaddexpf(float x, float y); +NPY_INPLACE float npy_logaddexp2f(float x, float y); +NPY_INPLACE float npy_divmodf(float x, float y, float *modulus); +NPY_INPLACE float npy_heavisidef(float x, float h0); + +NPY_INPLACE npy_longdouble npy_deg2radl(npy_longdouble x); +NPY_INPLACE npy_longdouble npy_rad2degl(npy_longdouble x); +NPY_INPLACE npy_longdouble npy_logaddexpl(npy_longdouble x, npy_longdouble y); +NPY_INPLACE npy_longdouble npy_logaddexp2l(npy_longdouble x, npy_longdouble y); +NPY_INPLACE npy_longdouble npy_divmodl(npy_longdouble x, npy_longdouble y, + npy_longdouble *modulus); +NPY_INPLACE npy_longdouble npy_heavisidel(npy_longdouble x, npy_longdouble h0); + +#define npy_degrees npy_rad2deg +#define npy_degreesf npy_rad2degf +#define npy_degreesl npy_rad2degl + +#define npy_radians npy_deg2rad +#define npy_radiansf npy_deg2radf +#define npy_radiansl npy_deg2radl + +/* + * Complex declarations + */ + +static inline double npy_creal(const npy_cdouble z) +{ +#if defined(__cplusplus) + return z._Val[0]; +#else + return creal(z); +#endif +} + +static inline void npy_csetreal(npy_cdouble *z, const double r) +{ + ((double *) z)[0] = r; +} + +static inline double npy_cimag(const npy_cdouble z) +{ +#if defined(__cplusplus) + return z._Val[1]; +#else + return cimag(z); +#endif +} + +static inline void npy_csetimag(npy_cdouble *z, const double i) +{ + ((double *) z)[1] = i; +} + +static inline float npy_crealf(const npy_cfloat z) +{ +#if defined(__cplusplus) + return z._Val[0]; +#else + return crealf(z); +#endif +} + +static inline void npy_csetrealf(npy_cfloat *z, const float r) +{ + ((float *) z)[0] = r; +} + +static inline float npy_cimagf(const npy_cfloat z) +{ +#if defined(__cplusplus) + return z._Val[1]; +#else + return cimagf(z); +#endif +} + +static inline void npy_csetimagf(npy_cfloat *z, const float i) +{ + ((float *) z)[1] = i; +} + +static inline npy_longdouble npy_creall(const npy_clongdouble z) +{ +#if defined(__cplusplus) + return (npy_longdouble)z._Val[0]; +#else + return creall(z); +#endif +} + +static inline void npy_csetreall(npy_clongdouble *z, const longdouble_t r) +{ + ((longdouble_t *) z)[0] = r; +} + +static inline npy_longdouble npy_cimagl(const npy_clongdouble z) +{ +#if defined(__cplusplus) + return (npy_longdouble)z._Val[1]; +#else + return cimagl(z); +#endif +} + +static inline void npy_csetimagl(npy_clongdouble *z, const longdouble_t i) +{ + ((longdouble_t *) z)[1] = i; +} + +#define NPY_CSETREAL(z, r) npy_csetreal(z, r) +#define NPY_CSETIMAG(z, i) npy_csetimag(z, i) +#define NPY_CSETREALF(z, r) npy_csetrealf(z, r) +#define NPY_CSETIMAGF(z, i) npy_csetimagf(z, i) +#define NPY_CSETREALL(z, r) npy_csetreall(z, r) +#define NPY_CSETIMAGL(z, i) npy_csetimagl(z, i) + +static inline npy_cdouble npy_cpack(double x, double y) +{ + npy_cdouble z; + npy_csetreal(&z, x); + npy_csetimag(&z, y); + return z; +} + +static inline npy_cfloat npy_cpackf(float x, float y) +{ + npy_cfloat z; + npy_csetrealf(&z, x); + npy_csetimagf(&z, y); + return z; +} + +static inline npy_clongdouble npy_cpackl(npy_longdouble x, npy_longdouble y) +{ + npy_clongdouble z; + npy_csetreall(&z, x); + npy_csetimagl(&z, y); + return z; +} + +/* + * Double precision complex functions + */ +double npy_cabs(npy_cdouble z); +double npy_carg(npy_cdouble z); + +npy_cdouble npy_cexp(npy_cdouble z); +npy_cdouble npy_clog(npy_cdouble z); +npy_cdouble npy_cpow(npy_cdouble x, npy_cdouble y); + +npy_cdouble npy_csqrt(npy_cdouble z); + +npy_cdouble npy_ccos(npy_cdouble z); +npy_cdouble npy_csin(npy_cdouble z); +npy_cdouble npy_ctan(npy_cdouble z); + +npy_cdouble npy_ccosh(npy_cdouble z); +npy_cdouble npy_csinh(npy_cdouble z); +npy_cdouble npy_ctanh(npy_cdouble z); + +npy_cdouble npy_cacos(npy_cdouble z); +npy_cdouble npy_casin(npy_cdouble z); +npy_cdouble npy_catan(npy_cdouble z); + +npy_cdouble npy_cacosh(npy_cdouble z); +npy_cdouble npy_casinh(npy_cdouble z); +npy_cdouble npy_catanh(npy_cdouble z); + +/* + * Single precision complex functions + */ +float npy_cabsf(npy_cfloat z); +float npy_cargf(npy_cfloat z); + +npy_cfloat npy_cexpf(npy_cfloat z); +npy_cfloat npy_clogf(npy_cfloat z); +npy_cfloat npy_cpowf(npy_cfloat x, npy_cfloat y); + +npy_cfloat npy_csqrtf(npy_cfloat z); + +npy_cfloat npy_ccosf(npy_cfloat z); +npy_cfloat npy_csinf(npy_cfloat z); +npy_cfloat npy_ctanf(npy_cfloat z); + +npy_cfloat npy_ccoshf(npy_cfloat z); +npy_cfloat npy_csinhf(npy_cfloat z); +npy_cfloat npy_ctanhf(npy_cfloat z); + +npy_cfloat npy_cacosf(npy_cfloat z); +npy_cfloat npy_casinf(npy_cfloat z); +npy_cfloat npy_catanf(npy_cfloat z); + +npy_cfloat npy_cacoshf(npy_cfloat z); +npy_cfloat npy_casinhf(npy_cfloat z); +npy_cfloat npy_catanhf(npy_cfloat z); + + +/* + * Extended precision complex functions + */ +npy_longdouble npy_cabsl(npy_clongdouble z); +npy_longdouble npy_cargl(npy_clongdouble z); + +npy_clongdouble npy_cexpl(npy_clongdouble z); +npy_clongdouble npy_clogl(npy_clongdouble z); +npy_clongdouble npy_cpowl(npy_clongdouble x, npy_clongdouble y); + +npy_clongdouble npy_csqrtl(npy_clongdouble z); + +npy_clongdouble npy_ccosl(npy_clongdouble z); +npy_clongdouble npy_csinl(npy_clongdouble z); +npy_clongdouble npy_ctanl(npy_clongdouble z); + +npy_clongdouble npy_ccoshl(npy_clongdouble z); +npy_clongdouble npy_csinhl(npy_clongdouble z); +npy_clongdouble npy_ctanhl(npy_clongdouble z); + +npy_clongdouble npy_cacosl(npy_clongdouble z); +npy_clongdouble npy_casinl(npy_clongdouble z); +npy_clongdouble npy_catanl(npy_clongdouble z); + +npy_clongdouble npy_cacoshl(npy_clongdouble z); +npy_clongdouble npy_casinhl(npy_clongdouble z); +npy_clongdouble npy_catanhl(npy_clongdouble z); + + +/* + * Functions that set the floating point error + * status word. + */ + +/* + * platform-dependent code translates floating point + * status to an integer sum of these values + */ +#define NPY_FPE_DIVIDEBYZERO 1 +#define NPY_FPE_OVERFLOW 2 +#define NPY_FPE_UNDERFLOW 4 +#define NPY_FPE_INVALID 8 + +int npy_clear_floatstatus_barrier(char*); +int npy_get_floatstatus_barrier(char*); +/* + * use caution with these - clang and gcc8.1 are known to reorder calls + * to this form of the function which can defeat the check. The _barrier + * form of the call is preferable, where the argument is + * (char*)&local_variable + */ +int npy_clear_floatstatus(void); +int npy_get_floatstatus(void); + +void npy_set_floatstatus_divbyzero(void); +void npy_set_floatstatus_overflow(void); +void npy_set_floatstatus_underflow(void); +void npy_set_floatstatus_invalid(void); + +#ifdef __cplusplus +} +#endif + +#if NPY_INLINE_MATH +#include "npy_math_internal.h" +#endif + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_NPY_MATH_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_no_deprecated_api.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_no_deprecated_api.h new file mode 100644 index 0000000000000000000000000000000000000000..39658c0bd2d61aacd25f75439e81ea16c3e33db8 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_no_deprecated_api.h @@ -0,0 +1,20 @@ +/* + * This include file is provided for inclusion in Cython *.pyd files where + * one would like to define the NPY_NO_DEPRECATED_API macro. It can be + * included by + * + * cdef extern from "npy_no_deprecated_api.h": pass + * + */ +#ifndef NPY_NO_DEPRECATED_API + +/* put this check here since there may be multiple includes in C extensions. */ +#if defined(NUMPY_CORE_INCLUDE_NUMPY_NDARRAYTYPES_H_) || \ + defined(NUMPY_CORE_INCLUDE_NUMPY_NPY_DEPRECATED_API_H) || \ + defined(NUMPY_CORE_INCLUDE_NUMPY_OLD_DEFINES_H_) +#error "npy_no_deprecated_api.h" must be first among numpy includes. +#else +#define NPY_NO_DEPRECATED_API NPY_API_VERSION +#endif + +#endif /* NPY_NO_DEPRECATED_API */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_os.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_os.h new file mode 100644 index 0000000000000000000000000000000000000000..0ce5d78b42c0e53c660654e297446d7811901aa2 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/npy_os.h @@ -0,0 +1,42 @@ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_OS_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_NPY_OS_H_ + +#if defined(linux) || defined(__linux) || defined(__linux__) + #define NPY_OS_LINUX +#elif defined(__FreeBSD__) || defined(__NetBSD__) || \ + defined(__OpenBSD__) || defined(__DragonFly__) + #define NPY_OS_BSD + #ifdef __FreeBSD__ + #define NPY_OS_FREEBSD + #elif defined(__NetBSD__) + #define NPY_OS_NETBSD + #elif defined(__OpenBSD__) + #define NPY_OS_OPENBSD + #elif defined(__DragonFly__) + #define NPY_OS_DRAGONFLY + #endif +#elif defined(sun) || defined(__sun) + #define NPY_OS_SOLARIS +#elif defined(__CYGWIN__) + #define NPY_OS_CYGWIN +/* We are on Windows.*/ +#elif defined(_WIN32) + /* We are using MinGW (64-bit or 32-bit)*/ + #if defined(__MINGW32__) || defined(__MINGW64__) + #define NPY_OS_MINGW + /* Otherwise, if _WIN64 is defined, we are targeting 64-bit Windows*/ + #elif defined(_WIN64) + #define NPY_OS_WIN64 + /* Otherwise assume we are targeting 32-bit Windows*/ + #else + #define NPY_OS_WIN32 + #endif +#elif defined(__APPLE__) + #define NPY_OS_DARWIN +#elif defined(__HAIKU__) + #define NPY_OS_HAIKU +#else + #define NPY_OS_UNKNOWN +#endif + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_NPY_OS_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/numpyconfig.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/numpyconfig.h new file mode 100644 index 0000000000000000000000000000000000000000..c129a3aceb6d3b4b3c6074b95c3e633452010870 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/numpyconfig.h @@ -0,0 +1,185 @@ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_NPY_NUMPYCONFIG_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_NPY_NUMPYCONFIG_H_ + +#include "_numpyconfig.h" + +/* + * On Mac OS X, because there is only one configuration stage for all the archs + * in universal builds, any macro which depends on the arch needs to be + * hardcoded. + * + * Note that distutils/pip will attempt a universal2 build when Python itself + * is built as universal2, hence this hardcoding is needed even if we do not + * support universal2 wheels anymore (see gh-22796). + * This code block can be removed after we have dropped the setup.py based + * build completely. + */ +#ifdef __APPLE__ + #undef NPY_SIZEOF_LONG + + #ifdef __LP64__ + #define NPY_SIZEOF_LONG 8 + #else + #define NPY_SIZEOF_LONG 4 + #endif + + #undef NPY_SIZEOF_LONGDOUBLE + #undef NPY_SIZEOF_COMPLEX_LONGDOUBLE + #ifdef HAVE_LDOUBLE_IEEE_DOUBLE_LE + #undef HAVE_LDOUBLE_IEEE_DOUBLE_LE + #endif + #ifdef HAVE_LDOUBLE_INTEL_EXTENDED_16_BYTES_LE + #undef HAVE_LDOUBLE_INTEL_EXTENDED_16_BYTES_LE + #endif + + #if defined(__arm64__) + #define NPY_SIZEOF_LONGDOUBLE 8 + #define NPY_SIZEOF_COMPLEX_LONGDOUBLE 16 + #define HAVE_LDOUBLE_IEEE_DOUBLE_LE 1 + #elif defined(__x86_64) + #define NPY_SIZEOF_LONGDOUBLE 16 + #define NPY_SIZEOF_COMPLEX_LONGDOUBLE 32 + #define HAVE_LDOUBLE_INTEL_EXTENDED_16_BYTES_LE 1 + #elif defined (__i386) + #define NPY_SIZEOF_LONGDOUBLE 12 + #define NPY_SIZEOF_COMPLEX_LONGDOUBLE 24 + #elif defined(__ppc__) || defined (__ppc64__) + #define NPY_SIZEOF_LONGDOUBLE 16 + #define NPY_SIZEOF_COMPLEX_LONGDOUBLE 32 + #else + #error "unknown architecture" + #endif +#endif + + +/** + * To help with both NPY_TARGET_VERSION and the NPY_NO_DEPRECATED_API macro, + * we include API version numbers for specific versions of NumPy. + * To exclude all API that was deprecated as of 1.7, add the following before + * #including any NumPy headers: + * #define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION + * The same is true for NPY_TARGET_VERSION, although NumPy will default to + * a backwards compatible build anyway. + */ +#define NPY_1_7_API_VERSION 0x00000007 +#define NPY_1_8_API_VERSION 0x00000008 +#define NPY_1_9_API_VERSION 0x00000009 +#define NPY_1_10_API_VERSION 0x0000000a +#define NPY_1_11_API_VERSION 0x0000000a +#define NPY_1_12_API_VERSION 0x0000000a +#define NPY_1_13_API_VERSION 0x0000000b +#define NPY_1_14_API_VERSION 0x0000000c +#define NPY_1_15_API_VERSION 0x0000000c +#define NPY_1_16_API_VERSION 0x0000000d +#define NPY_1_17_API_VERSION 0x0000000d +#define NPY_1_18_API_VERSION 0x0000000d +#define NPY_1_19_API_VERSION 0x0000000d +#define NPY_1_20_API_VERSION 0x0000000e +#define NPY_1_21_API_VERSION 0x0000000e +#define NPY_1_22_API_VERSION 0x0000000f +#define NPY_1_23_API_VERSION 0x00000010 +#define NPY_1_24_API_VERSION 0x00000010 +#define NPY_1_25_API_VERSION 0x00000011 +#define NPY_2_0_API_VERSION 0x00000012 +#define NPY_2_1_API_VERSION 0x00000013 +#define NPY_2_2_API_VERSION 0x00000013 +#define NPY_2_3_API_VERSION 0x00000014 +#define NPY_2_4_API_VERSION 0x00000015 + + +/* + * Binary compatibility version number. This number is increased + * whenever the C-API is changed such that binary compatibility is + * broken, i.e. whenever a recompile of extension modules is needed. + */ +#define NPY_VERSION NPY_ABI_VERSION + +/* + * Minor API version we are compiling to be compatible with. The version + * Number is always increased when the API changes via: `NPY_API_VERSION` + * (and should maybe just track the NumPy version). + * + * If we have an internal build, we always target the current version of + * course. + * + * For downstream users, we default to an older version to provide them with + * maximum compatibility by default. Downstream can choose to extend that + * default, or narrow it down if they wish to use newer API. If you adjust + * this, consider the Python version support (example for 1.25.x): + * + * NumPy 1.25.x supports Python: 3.9 3.10 3.11 (3.12) + * NumPy 1.19.x supports Python: 3.6 3.7 3.8 3.9 + * NumPy 1.17.x supports Python: 3.5 3.6 3.7 3.8 + * NumPy 1.15.x supports Python: ... 3.6 3.7 + * + * Users of the stable ABI may wish to target the last Python that is not + * end of life. This would be 3.8 at NumPy 1.25 release time. + * 1.17 as default was the choice of oldest-support-numpy at the time and + * has in practice no limit (compared to 1.19). Even earlier becomes legacy. + */ +#if defined(NPY_INTERNAL_BUILD) && NPY_INTERNAL_BUILD + /* NumPy internal build, always use current version. */ + #define NPY_FEATURE_VERSION NPY_API_VERSION +#elif defined(NPY_TARGET_VERSION) && NPY_TARGET_VERSION + /* user provided a target version, use it */ + #define NPY_FEATURE_VERSION NPY_TARGET_VERSION +#else + /* Use the default (increase when dropping Python 3.11 support) */ + #define NPY_FEATURE_VERSION NPY_1_23_API_VERSION +#endif + +/* Sanity check the (requested) feature version */ +#if NPY_FEATURE_VERSION > NPY_API_VERSION + #error "NPY_TARGET_VERSION higher than NumPy headers!" +#elif NPY_FEATURE_VERSION < NPY_1_15_API_VERSION + /* No support for irrelevant old targets, no need for error, but warn. */ + #ifndef _MSC_VER + #warning "Requested NumPy target lower than supported NumPy 1.15." + #else + #define _WARN___STR2__(x) #x + #define _WARN___STR1__(x) _WARN___STR2__(x) + #define _WARN___LOC__ __FILE__ "(" _WARN___STR1__(__LINE__) ") : Warning Msg: " + #pragma message(_WARN___LOC__"Requested NumPy target lower than supported NumPy 1.15.") + #endif +#endif + +/* + * We define a human readable translation to the Python version of NumPy + * for error messages (and also to allow grepping the binaries for conda). + */ +#if NPY_FEATURE_VERSION == NPY_1_7_API_VERSION + #define NPY_FEATURE_VERSION_STRING "1.7" +#elif NPY_FEATURE_VERSION == NPY_1_8_API_VERSION + #define NPY_FEATURE_VERSION_STRING "1.8" +#elif NPY_FEATURE_VERSION == NPY_1_9_API_VERSION + #define NPY_FEATURE_VERSION_STRING "1.9" +#elif NPY_FEATURE_VERSION == NPY_1_10_API_VERSION /* also 1.11, 1.12 */ + #define NPY_FEATURE_VERSION_STRING "1.10" +#elif NPY_FEATURE_VERSION == NPY_1_13_API_VERSION + #define NPY_FEATURE_VERSION_STRING "1.13" +#elif NPY_FEATURE_VERSION == NPY_1_14_API_VERSION /* also 1.15 */ + #define NPY_FEATURE_VERSION_STRING "1.14" +#elif NPY_FEATURE_VERSION == NPY_1_16_API_VERSION /* also 1.17, 1.18, 1.19 */ + #define NPY_FEATURE_VERSION_STRING "1.16" +#elif NPY_FEATURE_VERSION == NPY_1_20_API_VERSION /* also 1.21 */ + #define NPY_FEATURE_VERSION_STRING "1.20" +#elif NPY_FEATURE_VERSION == NPY_1_22_API_VERSION + #define NPY_FEATURE_VERSION_STRING "1.22" +#elif NPY_FEATURE_VERSION == NPY_1_23_API_VERSION /* also 1.24 */ + #define NPY_FEATURE_VERSION_STRING "1.23" +#elif NPY_FEATURE_VERSION == NPY_1_25_API_VERSION + #define NPY_FEATURE_VERSION_STRING "1.25" +#elif NPY_FEATURE_VERSION == NPY_2_0_API_VERSION + #define NPY_FEATURE_VERSION_STRING "2.0" +#elif NPY_FEATURE_VERSION == NPY_2_1_API_VERSION + #define NPY_FEATURE_VERSION_STRING "2.1" +#elif NPY_FEATURE_VERSION == NPY_2_3_API_VERSION + #define NPY_FEATURE_VERSION_STRING "2.3" +#elif NPY_FEATURE_VERSION == NPY_2_4_API_VERSION + #define NPY_FEATURE_VERSION_STRING "2.4" +#else + #error "Missing version string define for new NumPy version." +#endif + + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_NPY_NUMPYCONFIG_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/._LICENSE.txt b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/._LICENSE.txt new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/._LICENSE.txt differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/._bitgen.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/._bitgen.h new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/._bitgen.h differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/._distributions.h 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0000000000000000000000000000000000000000..d72a7c388d406191f2b3113efa5f89916a39d9b2 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/LICENSE.txt @@ -0,0 +1,21 @@ + zlib License + ------------ + + Copyright (C) 2010 - 2019 ridiculous_fish, + Copyright (C) 2016 - 2019 Kim Walisch, + + This software is provided 'as-is', without any express or implied + warranty. In no event will the authors be held liable for any damages + arising from the use of this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute it + freely, subject to the following restrictions: + + 1. The origin of this software must not be misrepresented; you must not + claim that you wrote the original software. If you use this software + in a product, an acknowledgment in the product documentation would be + appreciated but is not required. + 2. Altered source versions must be plainly marked as such, and must not be + misrepresented as being the original software. + 3. This notice may not be removed or altered from any source distribution. diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/bitgen.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/bitgen.h new file mode 100644 index 0000000000000000000000000000000000000000..162dd5c5753079eb1d76efa7fc8a3847c2ad6602 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/bitgen.h @@ -0,0 +1,20 @@ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_RANDOM_BITGEN_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_RANDOM_BITGEN_H_ + +#pragma once +#include +#include +#include + +/* Must match the declaration in numpy/random/.pxd */ + +typedef struct bitgen { + void *state; + uint64_t (*next_uint64)(void *st); + uint32_t (*next_uint32)(void *st); + double (*next_double)(void *st); + uint64_t (*next_raw)(void *st); +} bitgen_t; + + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_RANDOM_BITGEN_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/distributions.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/distributions.h new file mode 100644 index 0000000000000000000000000000000000000000..e7fa4bd00d43430eb1da23bd577688d8733bb6e8 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/distributions.h @@ -0,0 +1,209 @@ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_RANDOM_DISTRIBUTIONS_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_RANDOM_DISTRIBUTIONS_H_ + +#ifdef __cplusplus +extern "C" { +#endif + +#include +#include "numpy/npy_common.h" +#include +#include +#include + +#include "numpy/npy_math.h" +#include "numpy/random/bitgen.h" + +/* + * RAND_INT_TYPE is used to share integer generators with RandomState which + * used long in place of int64_t. If changing a distribution that uses + * RAND_INT_TYPE, then the original unmodified copy must be retained for + * use in RandomState by copying to the legacy distributions source file. + */ +#ifdef NP_RANDOM_LEGACY +#define RAND_INT_TYPE long +#define RAND_INT_MAX LONG_MAX +#else +#define RAND_INT_TYPE int64_t +#define RAND_INT_MAX INT64_MAX +#endif + +#ifdef _MSC_VER +#define DECLDIR __declspec(dllexport) +#else +#define DECLDIR extern +#endif + +#ifndef MIN +#define MIN(x, y) (((x) < (y)) ? x : y) +#define MAX(x, y) (((x) > (y)) ? x : y) +#endif + +#ifndef M_PI +#define M_PI 3.14159265358979323846264338328 +#endif + +typedef struct s_binomial_t { + int has_binomial; /* !=0: following parameters initialized for binomial */ + double psave; + RAND_INT_TYPE nsave; + double r; + double q; + double fm; + RAND_INT_TYPE m; + double p1; + double xm; + double xl; + double xr; + double c; + double laml; + double lamr; + double p2; + double p3; + double p4; +} binomial_t; + +DECLDIR float random_standard_uniform_f(bitgen_t *bitgen_state); +DECLDIR double random_standard_uniform(bitgen_t *bitgen_state); +DECLDIR void random_standard_uniform_fill(bitgen_t *, npy_intp, double *); +DECLDIR void random_standard_uniform_fill_f(bitgen_t *, npy_intp, float *); + +DECLDIR int64_t random_positive_int64(bitgen_t *bitgen_state); +DECLDIR int32_t random_positive_int32(bitgen_t *bitgen_state); +DECLDIR int64_t random_positive_int(bitgen_t *bitgen_state); +DECLDIR uint64_t random_uint(bitgen_t *bitgen_state); + +DECLDIR double random_standard_exponential(bitgen_t *bitgen_state); +DECLDIR float random_standard_exponential_f(bitgen_t *bitgen_state); +DECLDIR void random_standard_exponential_fill(bitgen_t *, npy_intp, double *); +DECLDIR void random_standard_exponential_fill_f(bitgen_t *, npy_intp, float *); +DECLDIR void random_standard_exponential_inv_fill(bitgen_t *, npy_intp, double *); +DECLDIR void random_standard_exponential_inv_fill_f(bitgen_t *, npy_intp, float *); + +DECLDIR double random_standard_normal(bitgen_t *bitgen_state); +DECLDIR float random_standard_normal_f(bitgen_t *bitgen_state); +DECLDIR void random_standard_normal_fill(bitgen_t *, npy_intp, double *); +DECLDIR void random_standard_normal_fill_f(bitgen_t *, npy_intp, float *); +DECLDIR double random_standard_gamma(bitgen_t *bitgen_state, double shape); +DECLDIR float random_standard_gamma_f(bitgen_t *bitgen_state, float shape); + +DECLDIR double random_normal(bitgen_t *bitgen_state, double loc, double scale); + +DECLDIR double random_gamma(bitgen_t *bitgen_state, double shape, double scale); +DECLDIR float random_gamma_f(bitgen_t *bitgen_state, float shape, float scale); + +DECLDIR double random_exponential(bitgen_t *bitgen_state, double scale); +DECLDIR double random_uniform(bitgen_t *bitgen_state, double lower, double range); +DECLDIR double random_beta(bitgen_t *bitgen_state, double a, double b); +DECLDIR double random_chisquare(bitgen_t *bitgen_state, double df); +DECLDIR double random_f(bitgen_t *bitgen_state, double dfnum, double dfden); +DECLDIR double random_standard_cauchy(bitgen_t *bitgen_state); +DECLDIR double random_pareto(bitgen_t *bitgen_state, double a); +DECLDIR double random_weibull(bitgen_t *bitgen_state, double a); +DECLDIR double random_power(bitgen_t *bitgen_state, double a); +DECLDIR double random_laplace(bitgen_t *bitgen_state, double loc, double scale); +DECLDIR double random_gumbel(bitgen_t *bitgen_state, double loc, double scale); +DECLDIR double random_logistic(bitgen_t *bitgen_state, double loc, double scale); +DECLDIR double random_lognormal(bitgen_t *bitgen_state, double mean, double sigma); +DECLDIR double random_rayleigh(bitgen_t *bitgen_state, double mode); +DECLDIR double random_standard_t(bitgen_t *bitgen_state, double df); +DECLDIR double random_noncentral_chisquare(bitgen_t *bitgen_state, double df, + double nonc); +DECLDIR double random_noncentral_f(bitgen_t *bitgen_state, double dfnum, + double dfden, double nonc); +DECLDIR double random_wald(bitgen_t *bitgen_state, double mean, double scale); +DECLDIR double random_vonmises(bitgen_t *bitgen_state, double mu, double kappa); +DECLDIR double random_triangular(bitgen_t *bitgen_state, double left, double mode, + double right); + +DECLDIR RAND_INT_TYPE random_poisson(bitgen_t *bitgen_state, double lam); +DECLDIR RAND_INT_TYPE random_negative_binomial(bitgen_t *bitgen_state, double n, + double p); + +DECLDIR int64_t random_binomial(bitgen_t *bitgen_state, double p, + int64_t n, binomial_t *binomial); + +DECLDIR int64_t random_logseries(bitgen_t *bitgen_state, double p); +DECLDIR int64_t random_geometric(bitgen_t *bitgen_state, double p); +DECLDIR RAND_INT_TYPE random_geometric_search(bitgen_t *bitgen_state, double p); +DECLDIR RAND_INT_TYPE random_zipf(bitgen_t *bitgen_state, double a); +DECLDIR int64_t random_hypergeometric(bitgen_t *bitgen_state, + int64_t good, int64_t bad, int64_t sample); +DECLDIR uint64_t random_interval(bitgen_t *bitgen_state, uint64_t max); + +/* Generate random uint64 numbers in closed interval [off, off + rng]. */ +DECLDIR uint64_t random_bounded_uint64(bitgen_t *bitgen_state, uint64_t off, + uint64_t rng, uint64_t mask, + bool use_masked); + +/* Generate random uint32 numbers in closed interval [off, off + rng]. */ +DECLDIR uint32_t random_buffered_bounded_uint32(bitgen_t *bitgen_state, + uint32_t off, uint32_t rng, + uint32_t mask, bool use_masked, + int *bcnt, uint32_t *buf); +DECLDIR uint16_t random_buffered_bounded_uint16(bitgen_t *bitgen_state, + uint16_t off, uint16_t rng, + uint16_t mask, bool use_masked, + int *bcnt, uint32_t *buf); +DECLDIR uint8_t random_buffered_bounded_uint8(bitgen_t *bitgen_state, uint8_t off, + uint8_t rng, uint8_t mask, + bool use_masked, int *bcnt, + uint32_t *buf); +DECLDIR npy_bool random_buffered_bounded_bool(bitgen_t *bitgen_state, npy_bool off, + npy_bool rng, npy_bool mask, + bool use_masked, int *bcnt, + uint32_t *buf); + +DECLDIR void random_bounded_uint64_fill(bitgen_t *bitgen_state, uint64_t off, + uint64_t rng, npy_intp cnt, + bool use_masked, uint64_t *out); +DECLDIR void random_bounded_uint32_fill(bitgen_t *bitgen_state, uint32_t off, + uint32_t rng, npy_intp cnt, + bool use_masked, uint32_t *out); +DECLDIR void random_bounded_uint16_fill(bitgen_t *bitgen_state, uint16_t off, + uint16_t rng, npy_intp cnt, + bool use_masked, uint16_t *out); +DECLDIR void random_bounded_uint8_fill(bitgen_t *bitgen_state, uint8_t off, + uint8_t rng, npy_intp cnt, + bool use_masked, uint8_t *out); +DECLDIR void random_bounded_bool_fill(bitgen_t *bitgen_state, npy_bool off, + npy_bool rng, npy_intp cnt, + bool use_masked, npy_bool *out); + +DECLDIR void random_multinomial(bitgen_t *bitgen_state, RAND_INT_TYPE n, RAND_INT_TYPE *mnix, + double *pix, npy_intp d, binomial_t *binomial); + +/* multivariate hypergeometric, "count" method */ +DECLDIR int random_multivariate_hypergeometric_count(bitgen_t *bitgen_state, + int64_t total, + size_t num_colors, int64_t *colors, + int64_t nsample, + size_t num_variates, int64_t *variates); + +/* multivariate hypergeometric, "marginals" method */ +DECLDIR void random_multivariate_hypergeometric_marginals(bitgen_t *bitgen_state, + int64_t total, + size_t num_colors, int64_t *colors, + int64_t nsample, + size_t num_variates, int64_t *variates); + +/* Common to legacy-distributions.c and distributions.c but not exported */ + +RAND_INT_TYPE random_binomial_btpe(bitgen_t *bitgen_state, + RAND_INT_TYPE n, + double p, + binomial_t *binomial); +RAND_INT_TYPE random_binomial_inversion(bitgen_t *bitgen_state, + RAND_INT_TYPE n, + double p, + binomial_t *binomial); +double random_loggam(double x); +static inline double next_double(bitgen_t *bitgen_state) { + return bitgen_state->next_double(bitgen_state->state); +} + +#ifdef __cplusplus +} +#endif + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_RANDOM_DISTRIBUTIONS_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/libdivide.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/libdivide.h new file mode 100644 index 0000000000000000000000000000000000000000..f4eb8039b50c21c0977a38ee5f47c8f89307d482 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/random/libdivide.h @@ -0,0 +1,2079 @@ +// libdivide.h - Optimized integer division +// https://libdivide.com +// +// Copyright (C) 2010 - 2019 ridiculous_fish, +// Copyright (C) 2016 - 2019 Kim Walisch, +// +// libdivide is dual-licensed under the Boost or zlib licenses. +// You may use libdivide under the terms of either of these. +// See LICENSE.txt for more details. + +#ifndef NUMPY_CORE_INCLUDE_NUMPY_LIBDIVIDE_LIBDIVIDE_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_LIBDIVIDE_LIBDIVIDE_H_ + +#define LIBDIVIDE_VERSION "3.0" +#define LIBDIVIDE_VERSION_MAJOR 3 +#define LIBDIVIDE_VERSION_MINOR 0 + +#include + +#if defined(__cplusplus) + #include + #include + #include +#else + #include + #include +#endif + +#if defined(LIBDIVIDE_AVX512) + #include +#elif defined(LIBDIVIDE_AVX2) + #include +#elif defined(LIBDIVIDE_SSE2) + #include +#endif + +#if defined(_MSC_VER) + #include + // disable warning C4146: unary minus operator applied + // to unsigned type, result still unsigned + #pragma warning(disable: 4146) + #define LIBDIVIDE_VC +#endif + +#if !defined(__has_builtin) + #define __has_builtin(x) 0 +#endif + +#if defined(__SIZEOF_INT128__) + #define HAS_INT128_T + // clang-cl on Windows does not yet support 128-bit division + #if !(defined(__clang__) && defined(LIBDIVIDE_VC)) + #define HAS_INT128_DIV + #endif +#endif + +#if defined(__x86_64__) || defined(_M_X64) + #define LIBDIVIDE_X86_64 +#endif + +#if defined(__i386__) + #define LIBDIVIDE_i386 +#endif + +#if defined(__GNUC__) || defined(__clang__) + #define LIBDIVIDE_GCC_STYLE_ASM +#endif + +#if defined(__cplusplus) || defined(LIBDIVIDE_VC) + #define LIBDIVIDE_FUNCTION __FUNCTION__ +#else + #define LIBDIVIDE_FUNCTION __func__ +#endif + +#define LIBDIVIDE_ERROR(msg) \ + do { \ + fprintf(stderr, "libdivide.h:%d: %s(): Error: %s\n", \ + __LINE__, LIBDIVIDE_FUNCTION, msg); \ + abort(); \ + } while (0) + +#if defined(LIBDIVIDE_ASSERTIONS_ON) + #define LIBDIVIDE_ASSERT(x) \ + do { \ + if (!(x)) { \ + fprintf(stderr, "libdivide.h:%d: %s(): Assertion failed: %s\n", \ + __LINE__, LIBDIVIDE_FUNCTION, #x); \ + abort(); \ + } \ + } while (0) +#else + #define LIBDIVIDE_ASSERT(x) +#endif + +#ifdef __cplusplus +namespace libdivide { +#endif + +// pack divider structs to prevent compilers from padding. +// This reduces memory usage by up to 43% when using a large +// array of libdivide dividers and improves performance +// by up to 10% because of reduced memory bandwidth. +#pragma pack(push, 1) + +struct libdivide_u32_t { + uint32_t magic; + uint8_t more; +}; + +struct libdivide_s32_t { + int32_t magic; + uint8_t more; +}; + +struct libdivide_u64_t { + uint64_t magic; + uint8_t more; +}; + +struct libdivide_s64_t { + int64_t magic; + uint8_t more; +}; + +struct libdivide_u32_branchfree_t { + uint32_t magic; + uint8_t more; +}; + +struct libdivide_s32_branchfree_t { + int32_t magic; + uint8_t more; +}; + +struct libdivide_u64_branchfree_t { + uint64_t magic; + uint8_t more; +}; + +struct libdivide_s64_branchfree_t { + int64_t magic; + uint8_t more; +}; + +#pragma pack(pop) + +// Explanation of the "more" field: +// +// * Bits 0-5 is the shift value (for shift path or mult path). +// * Bit 6 is the add indicator for mult path. +// * Bit 7 is set if the divisor is negative. We use bit 7 as the negative +// divisor indicator so that we can efficiently use sign extension to +// create a bitmask with all bits set to 1 (if the divisor is negative) +// or 0 (if the divisor is positive). +// +// u32: [0-4] shift value +// [5] ignored +// [6] add indicator +// magic number of 0 indicates shift path +// +// s32: [0-4] shift value +// [5] ignored +// [6] add indicator +// [7] indicates negative divisor +// magic number of 0 indicates shift path +// +// u64: [0-5] shift value +// [6] add indicator +// magic number of 0 indicates shift path +// +// s64: [0-5] shift value +// [6] add indicator +// [7] indicates negative divisor +// magic number of 0 indicates shift path +// +// In s32 and s64 branchfree modes, the magic number is negated according to +// whether the divisor is negated. In branchfree strategy, it is not negated. + +enum { + LIBDIVIDE_32_SHIFT_MASK = 0x1F, + LIBDIVIDE_64_SHIFT_MASK = 0x3F, + LIBDIVIDE_ADD_MARKER = 0x40, + LIBDIVIDE_NEGATIVE_DIVISOR = 0x80 +}; + +static inline struct libdivide_s32_t libdivide_s32_gen(int32_t d); +static inline struct libdivide_u32_t libdivide_u32_gen(uint32_t d); +static inline struct libdivide_s64_t libdivide_s64_gen(int64_t d); +static inline struct libdivide_u64_t libdivide_u64_gen(uint64_t d); + +static inline struct libdivide_s32_branchfree_t libdivide_s32_branchfree_gen(int32_t d); +static inline struct libdivide_u32_branchfree_t libdivide_u32_branchfree_gen(uint32_t d); +static inline struct libdivide_s64_branchfree_t libdivide_s64_branchfree_gen(int64_t d); +static inline struct libdivide_u64_branchfree_t libdivide_u64_branchfree_gen(uint64_t d); + +static inline int32_t libdivide_s32_do(int32_t numer, const struct libdivide_s32_t *denom); +static inline uint32_t libdivide_u32_do(uint32_t numer, const struct libdivide_u32_t *denom); +static inline int64_t libdivide_s64_do(int64_t numer, const struct libdivide_s64_t *denom); +static inline uint64_t libdivide_u64_do(uint64_t numer, const struct libdivide_u64_t *denom); + +static inline int32_t libdivide_s32_branchfree_do(int32_t numer, const struct libdivide_s32_branchfree_t *denom); +static inline uint32_t libdivide_u32_branchfree_do(uint32_t numer, const struct libdivide_u32_branchfree_t *denom); +static inline int64_t libdivide_s64_branchfree_do(int64_t numer, const struct libdivide_s64_branchfree_t *denom); +static inline uint64_t libdivide_u64_branchfree_do(uint64_t numer, const struct libdivide_u64_branchfree_t *denom); + +static inline int32_t libdivide_s32_recover(const struct libdivide_s32_t *denom); +static inline uint32_t libdivide_u32_recover(const struct libdivide_u32_t *denom); +static inline int64_t libdivide_s64_recover(const struct libdivide_s64_t *denom); +static inline uint64_t libdivide_u64_recover(const struct libdivide_u64_t *denom); + +static inline int32_t libdivide_s32_branchfree_recover(const struct libdivide_s32_branchfree_t *denom); +static inline uint32_t libdivide_u32_branchfree_recover(const struct libdivide_u32_branchfree_t *denom); +static inline int64_t libdivide_s64_branchfree_recover(const struct libdivide_s64_branchfree_t *denom); +static inline uint64_t libdivide_u64_branchfree_recover(const struct libdivide_u64_branchfree_t *denom); + +//////// Internal Utility Functions + +static inline uint32_t libdivide_mullhi_u32(uint32_t x, uint32_t y) { + uint64_t xl = x, yl = y; + uint64_t rl = xl * yl; + return (uint32_t)(rl >> 32); +} + +static inline int32_t libdivide_mullhi_s32(int32_t x, int32_t y) { + int64_t xl = x, yl = y; + int64_t rl = xl * yl; + // needs to be arithmetic shift + return (int32_t)(rl >> 32); +} + +static inline uint64_t libdivide_mullhi_u64(uint64_t x, uint64_t y) { +#if defined(LIBDIVIDE_VC) && \ + defined(LIBDIVIDE_X86_64) + return __umulh(x, y); +#elif defined(HAS_INT128_T) + __uint128_t xl = x, yl = y; + __uint128_t rl = xl * yl; + return (uint64_t)(rl >> 64); +#else + // full 128 bits are x0 * y0 + (x0 * y1 << 32) + (x1 * y0 << 32) + (x1 * y1 << 64) + uint32_t mask = 0xFFFFFFFF; + uint32_t x0 = (uint32_t)(x & mask); + uint32_t x1 = (uint32_t)(x >> 32); + uint32_t y0 = (uint32_t)(y & mask); + uint32_t y1 = (uint32_t)(y >> 32); + uint32_t x0y0_hi = libdivide_mullhi_u32(x0, y0); + uint64_t x0y1 = x0 * (uint64_t)y1; + uint64_t x1y0 = x1 * (uint64_t)y0; + uint64_t x1y1 = x1 * (uint64_t)y1; + uint64_t temp = x1y0 + x0y0_hi; + uint64_t temp_lo = temp & mask; + uint64_t temp_hi = temp >> 32; + + return x1y1 + temp_hi + ((temp_lo + x0y1) >> 32); +#endif +} + +static inline int64_t libdivide_mullhi_s64(int64_t x, int64_t y) { +#if defined(LIBDIVIDE_VC) && \ + defined(LIBDIVIDE_X86_64) + return __mulh(x, y); +#elif defined(HAS_INT128_T) + __int128_t xl = x, yl = y; + __int128_t rl = xl * yl; + return (int64_t)(rl >> 64); +#else + // full 128 bits are x0 * y0 + (x0 * y1 << 32) + (x1 * y0 << 32) + (x1 * y1 << 64) + uint32_t mask = 0xFFFFFFFF; + uint32_t x0 = (uint32_t)(x & mask); + uint32_t y0 = (uint32_t)(y & mask); + int32_t x1 = (int32_t)(x >> 32); + int32_t y1 = (int32_t)(y >> 32); + uint32_t x0y0_hi = libdivide_mullhi_u32(x0, y0); + int64_t t = x1 * (int64_t)y0 + x0y0_hi; + int64_t w1 = x0 * (int64_t)y1 + (t & mask); + + return x1 * (int64_t)y1 + (t >> 32) + (w1 >> 32); +#endif +} + +static inline int32_t libdivide_count_leading_zeros32(uint32_t val) { +#if defined(__GNUC__) || \ + __has_builtin(__builtin_clz) + // Fast way to count leading zeros + return __builtin_clz(val); +#elif defined(LIBDIVIDE_VC) + unsigned long result; + if (_BitScanReverse(&result, val)) { + return 31 - result; + } + return 0; +#else + if (val == 0) + return 32; + int32_t result = 8; + uint32_t hi = 0xFFU << 24; + while ((val & hi) == 0) { + hi >>= 8; + result += 8; + } + while (val & hi) { + result -= 1; + hi <<= 1; + } + return result; +#endif +} + +static inline int32_t libdivide_count_leading_zeros64(uint64_t val) { +#if defined(__GNUC__) || \ + __has_builtin(__builtin_clzll) + // Fast way to count leading zeros + return __builtin_clzll(val); +#elif defined(LIBDIVIDE_VC) && defined(_WIN64) + unsigned long result; + if (_BitScanReverse64(&result, val)) { + return 63 - result; + } + return 0; +#else + uint32_t hi = val >> 32; + uint32_t lo = val & 0xFFFFFFFF; + if (hi != 0) return libdivide_count_leading_zeros32(hi); + return 32 + libdivide_count_leading_zeros32(lo); +#endif +} + +// libdivide_64_div_32_to_32: divides a 64-bit uint {u1, u0} by a 32-bit +// uint {v}. The result must fit in 32 bits. +// Returns the quotient directly and the remainder in *r +static inline uint32_t libdivide_64_div_32_to_32(uint32_t u1, uint32_t u0, uint32_t v, uint32_t *r) { +#if (defined(LIBDIVIDE_i386) || defined(LIBDIVIDE_X86_64)) && \ + defined(LIBDIVIDE_GCC_STYLE_ASM) + uint32_t result; + __asm__("divl %[v]" + : "=a"(result), "=d"(*r) + : [v] "r"(v), "a"(u0), "d"(u1) + ); + return result; +#else + uint64_t n = ((uint64_t)u1 << 32) | u0; + uint32_t result = (uint32_t)(n / v); + *r = (uint32_t)(n - result * (uint64_t)v); + return result; +#endif +} + +// libdivide_128_div_64_to_64: divides a 128-bit uint {u1, u0} by a 64-bit +// uint {v}. The result must fit in 64 bits. +// Returns the quotient directly and the remainder in *r +static uint64_t libdivide_128_div_64_to_64(uint64_t u1, uint64_t u0, uint64_t v, uint64_t *r) { +#if defined(LIBDIVIDE_X86_64) && \ + defined(LIBDIVIDE_GCC_STYLE_ASM) + uint64_t result; + __asm__("divq %[v]" + : "=a"(result), "=d"(*r) + : [v] "r"(v), "a"(u0), "d"(u1) + ); + return result; +#elif defined(HAS_INT128_T) && \ + defined(HAS_INT128_DIV) + __uint128_t n = ((__uint128_t)u1 << 64) | u0; + uint64_t result = (uint64_t)(n / v); + *r = (uint64_t)(n - result * (__uint128_t)v); + return result; +#else + // Code taken from Hacker's Delight: + // http://www.hackersdelight.org/HDcode/divlu.c. + // License permits inclusion here per: + // http://www.hackersdelight.org/permissions.htm + + const uint64_t b = (1ULL << 32); // Number base (32 bits) + uint64_t un1, un0; // Norm. dividend LSD's + uint64_t vn1, vn0; // Norm. divisor digits + uint64_t q1, q0; // Quotient digits + uint64_t un64, un21, un10; // Dividend digit pairs + uint64_t rhat; // A remainder + int32_t s; // Shift amount for norm + + // If overflow, set rem. to an impossible value, + // and return the largest possible quotient + if (u1 >= v) { + *r = (uint64_t) -1; + return (uint64_t) -1; + } + + // count leading zeros + s = libdivide_count_leading_zeros64(v); + if (s > 0) { + // Normalize divisor + v = v << s; + un64 = (u1 << s) | (u0 >> (64 - s)); + un10 = u0 << s; // Shift dividend left + } else { + // Avoid undefined behavior of (u0 >> 64). + // The behavior is undefined if the right operand is + // negative, or greater than or equal to the length + // in bits of the promoted left operand. + un64 = u1; + un10 = u0; + } + + // Break divisor up into two 32-bit digits + vn1 = v >> 32; + vn0 = v & 0xFFFFFFFF; + + // Break right half of dividend into two digits + un1 = un10 >> 32; + un0 = un10 & 0xFFFFFFFF; + + // Compute the first quotient digit, q1 + q1 = un64 / vn1; + rhat = un64 - q1 * vn1; + + while (q1 >= b || q1 * vn0 > b * rhat + un1) { + q1 = q1 - 1; + rhat = rhat + vn1; + if (rhat >= b) + break; + } + + // Multiply and subtract + un21 = un64 * b + un1 - q1 * v; + + // Compute the second quotient digit + q0 = un21 / vn1; + rhat = un21 - q0 * vn1; + + while (q0 >= b || q0 * vn0 > b * rhat + un0) { + q0 = q0 - 1; + rhat = rhat + vn1; + if (rhat >= b) + break; + } + + *r = (un21 * b + un0 - q0 * v) >> s; + return q1 * b + q0; +#endif +} + +// Bitshift a u128 in place, left (signed_shift > 0) or right (signed_shift < 0) +static inline void libdivide_u128_shift(uint64_t *u1, uint64_t *u0, int32_t signed_shift) { + if (signed_shift > 0) { + uint32_t shift = signed_shift; + *u1 <<= shift; + *u1 |= *u0 >> (64 - shift); + *u0 <<= shift; + } + else if (signed_shift < 0) { + uint32_t shift = -signed_shift; + *u0 >>= shift; + *u0 |= *u1 << (64 - shift); + *u1 >>= shift; + } +} + +// Computes a 128 / 128 -> 64 bit division, with a 128 bit remainder. +static uint64_t libdivide_128_div_128_to_64(uint64_t u_hi, uint64_t u_lo, uint64_t v_hi, uint64_t v_lo, uint64_t *r_hi, uint64_t *r_lo) { +#if defined(HAS_INT128_T) && \ + defined(HAS_INT128_DIV) + __uint128_t ufull = u_hi; + __uint128_t vfull = v_hi; + ufull = (ufull << 64) | u_lo; + vfull = (vfull << 64) | v_lo; + uint64_t res = (uint64_t)(ufull / vfull); + __uint128_t remainder = ufull - (vfull * res); + *r_lo = (uint64_t)remainder; + *r_hi = (uint64_t)(remainder >> 64); + return res; +#else + // Adapted from "Unsigned Doubleword Division" in Hacker's Delight + // We want to compute u / v + typedef struct { uint64_t hi; uint64_t lo; } u128_t; + u128_t u = {u_hi, u_lo}; + u128_t v = {v_hi, v_lo}; + + if (v.hi == 0) { + // divisor v is a 64 bit value, so we just need one 128/64 division + // Note that we are simpler than Hacker's Delight here, because we know + // the quotient fits in 64 bits whereas Hacker's Delight demands a full + // 128 bit quotient + *r_hi = 0; + return libdivide_128_div_64_to_64(u.hi, u.lo, v.lo, r_lo); + } + // Here v >= 2**64 + // We know that v.hi != 0, so count leading zeros is OK + // We have 0 <= n <= 63 + uint32_t n = libdivide_count_leading_zeros64(v.hi); + + // Normalize the divisor so its MSB is 1 + u128_t v1t = v; + libdivide_u128_shift(&v1t.hi, &v1t.lo, n); + uint64_t v1 = v1t.hi; // i.e. v1 = v1t >> 64 + + // To ensure no overflow + u128_t u1 = u; + libdivide_u128_shift(&u1.hi, &u1.lo, -1); + + // Get quotient from divide unsigned insn. + uint64_t rem_ignored; + uint64_t q1 = libdivide_128_div_64_to_64(u1.hi, u1.lo, v1, &rem_ignored); + + // Undo normalization and division of u by 2. + u128_t q0 = {0, q1}; + libdivide_u128_shift(&q0.hi, &q0.lo, n); + libdivide_u128_shift(&q0.hi, &q0.lo, -63); + + // Make q0 correct or too small by 1 + // Equivalent to `if (q0 != 0) q0 = q0 - 1;` + if (q0.hi != 0 || q0.lo != 0) { + q0.hi -= (q0.lo == 0); // borrow + q0.lo -= 1; + } + + // Now q0 is correct. + // Compute q0 * v as q0v + // = (q0.hi << 64 + q0.lo) * (v.hi << 64 + v.lo) + // = (q0.hi * v.hi << 128) + (q0.hi * v.lo << 64) + + // (q0.lo * v.hi << 64) + q0.lo * v.lo) + // Each term is 128 bit + // High half of full product (upper 128 bits!) are dropped + u128_t q0v = {0, 0}; + q0v.hi = q0.hi*v.lo + q0.lo*v.hi + libdivide_mullhi_u64(q0.lo, v.lo); + q0v.lo = q0.lo*v.lo; + + // Compute u - q0v as u_q0v + // This is the remainder + u128_t u_q0v = u; + u_q0v.hi -= q0v.hi + (u.lo < q0v.lo); // second term is borrow + u_q0v.lo -= q0v.lo; + + // Check if u_q0v >= v + // This checks if our remainder is larger than the divisor + if ((u_q0v.hi > v.hi) || + (u_q0v.hi == v.hi && u_q0v.lo >= v.lo)) { + // Increment q0 + q0.lo += 1; + q0.hi += (q0.lo == 0); // carry + + // Subtract v from remainder + u_q0v.hi -= v.hi + (u_q0v.lo < v.lo); + u_q0v.lo -= v.lo; + } + + *r_hi = u_q0v.hi; + *r_lo = u_q0v.lo; + + LIBDIVIDE_ASSERT(q0.hi == 0); + return q0.lo; +#endif +} + +////////// UINT32 + +static inline struct libdivide_u32_t libdivide_internal_u32_gen(uint32_t d, int branchfree) { + if (d == 0) { + LIBDIVIDE_ERROR("divider must be != 0"); + } + + struct libdivide_u32_t result; + uint32_t floor_log_2_d = 31 - libdivide_count_leading_zeros32(d); + + // Power of 2 + if ((d & (d - 1)) == 0) { + // We need to subtract 1 from the shift value in case of an unsigned + // branchfree divider because there is a hardcoded right shift by 1 + // in its division algorithm. Because of this we also need to add back + // 1 in its recovery algorithm. + result.magic = 0; + result.more = (uint8_t)(floor_log_2_d - (branchfree != 0)); + } else { + uint8_t more; + uint32_t rem, proposed_m; + proposed_m = libdivide_64_div_32_to_32(1U << floor_log_2_d, 0, d, &rem); + + LIBDIVIDE_ASSERT(rem > 0 && rem < d); + const uint32_t e = d - rem; + + // This power works if e < 2**floor_log_2_d. + if (!branchfree && (e < (1U << floor_log_2_d))) { + // This power works + more = floor_log_2_d; + } else { + // We have to use the general 33-bit algorithm. We need to compute + // (2**power) / d. However, we already have (2**(power-1))/d and + // its remainder. By doubling both, and then correcting the + // remainder, we can compute the larger division. + // don't care about overflow here - in fact, we expect it + proposed_m += proposed_m; + const uint32_t twice_rem = rem + rem; + if (twice_rem >= d || twice_rem < rem) proposed_m += 1; + more = floor_log_2_d | LIBDIVIDE_ADD_MARKER; + } + result.magic = 1 + proposed_m; + result.more = more; + // result.more's shift should in general be ceil_log_2_d. But if we + // used the smaller power, we subtract one from the shift because we're + // using the smaller power. If we're using the larger power, we + // subtract one from the shift because it's taken care of by the add + // indicator. So floor_log_2_d happens to be correct in both cases. + } + return result; +} + +struct libdivide_u32_t libdivide_u32_gen(uint32_t d) { + return libdivide_internal_u32_gen(d, 0); +} + +struct libdivide_u32_branchfree_t libdivide_u32_branchfree_gen(uint32_t d) { + if (d == 1) { + LIBDIVIDE_ERROR("branchfree divider must be != 1"); + } + struct libdivide_u32_t tmp = libdivide_internal_u32_gen(d, 1); + struct libdivide_u32_branchfree_t ret = {tmp.magic, (uint8_t)(tmp.more & LIBDIVIDE_32_SHIFT_MASK)}; + return ret; +} + +uint32_t libdivide_u32_do(uint32_t numer, const struct libdivide_u32_t *denom) { + uint8_t more = denom->more; + if (!denom->magic) { + return numer >> more; + } + else { + uint32_t q = libdivide_mullhi_u32(denom->magic, numer); + if (more & LIBDIVIDE_ADD_MARKER) { + uint32_t t = ((numer - q) >> 1) + q; + return t >> (more & LIBDIVIDE_32_SHIFT_MASK); + } + else { + // All upper bits are 0, + // don't need to mask them off. + return q >> more; + } + } +} + +uint32_t libdivide_u32_branchfree_do(uint32_t numer, const struct libdivide_u32_branchfree_t *denom) { + uint32_t q = libdivide_mullhi_u32(denom->magic, numer); + uint32_t t = ((numer - q) >> 1) + q; + return t >> denom->more; +} + +uint32_t libdivide_u32_recover(const struct libdivide_u32_t *denom) { + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK; + + if (!denom->magic) { + return 1U << shift; + } else if (!(more & LIBDIVIDE_ADD_MARKER)) { + // We compute q = n/d = n*m / 2^(32 + shift) + // Therefore we have d = 2^(32 + shift) / m + // We need to ceil it. + // We know d is not a power of 2, so m is not a power of 2, + // so we can just add 1 to the floor + uint32_t hi_dividend = 1U << shift; + uint32_t rem_ignored; + return 1 + libdivide_64_div_32_to_32(hi_dividend, 0, denom->magic, &rem_ignored); + } else { + // Here we wish to compute d = 2^(32+shift+1)/(m+2^32). + // Notice (m + 2^32) is a 33 bit number. Use 64 bit division for now + // Also note that shift may be as high as 31, so shift + 1 will + // overflow. So we have to compute it as 2^(32+shift)/(m+2^32), and + // then double the quotient and remainder. + uint64_t half_n = 1ULL << (32 + shift); + uint64_t d = (1ULL << 32) | denom->magic; + // Note that the quotient is guaranteed <= 32 bits, but the remainder + // may need 33! + uint32_t half_q = (uint32_t)(half_n / d); + uint64_t rem = half_n % d; + // We computed 2^(32+shift)/(m+2^32) + // Need to double it, and then add 1 to the quotient if doubling th + // remainder would increase the quotient. + // Note that rem<<1 cannot overflow, since rem < d and d is 33 bits + uint32_t full_q = half_q + half_q + ((rem<<1) >= d); + + // We rounded down in gen (hence +1) + return full_q + 1; + } +} + +uint32_t libdivide_u32_branchfree_recover(const struct libdivide_u32_branchfree_t *denom) { + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK; + + if (!denom->magic) { + return 1U << (shift + 1); + } else { + // Here we wish to compute d = 2^(32+shift+1)/(m+2^32). + // Notice (m + 2^32) is a 33 bit number. Use 64 bit division for now + // Also note that shift may be as high as 31, so shift + 1 will + // overflow. So we have to compute it as 2^(32+shift)/(m+2^32), and + // then double the quotient and remainder. + uint64_t half_n = 1ULL << (32 + shift); + uint64_t d = (1ULL << 32) | denom->magic; + // Note that the quotient is guaranteed <= 32 bits, but the remainder + // may need 33! + uint32_t half_q = (uint32_t)(half_n / d); + uint64_t rem = half_n % d; + // We computed 2^(32+shift)/(m+2^32) + // Need to double it, and then add 1 to the quotient if doubling th + // remainder would increase the quotient. + // Note that rem<<1 cannot overflow, since rem < d and d is 33 bits + uint32_t full_q = half_q + half_q + ((rem<<1) >= d); + + // We rounded down in gen (hence +1) + return full_q + 1; + } +} + +/////////// UINT64 + +static inline struct libdivide_u64_t libdivide_internal_u64_gen(uint64_t d, int branchfree) { + if (d == 0) { + LIBDIVIDE_ERROR("divider must be != 0"); + } + + struct libdivide_u64_t result; + uint32_t floor_log_2_d = 63 - libdivide_count_leading_zeros64(d); + + // Power of 2 + if ((d & (d - 1)) == 0) { + // We need to subtract 1 from the shift value in case of an unsigned + // branchfree divider because there is a hardcoded right shift by 1 + // in its division algorithm. Because of this we also need to add back + // 1 in its recovery algorithm. + result.magic = 0; + result.more = (uint8_t)(floor_log_2_d - (branchfree != 0)); + } else { + uint64_t proposed_m, rem; + uint8_t more; + // (1 << (64 + floor_log_2_d)) / d + proposed_m = libdivide_128_div_64_to_64(1ULL << floor_log_2_d, 0, d, &rem); + + LIBDIVIDE_ASSERT(rem > 0 && rem < d); + const uint64_t e = d - rem; + + // This power works if e < 2**floor_log_2_d. + if (!branchfree && e < (1ULL << floor_log_2_d)) { + // This power works + more = floor_log_2_d; + } else { + // We have to use the general 65-bit algorithm. We need to compute + // (2**power) / d. However, we already have (2**(power-1))/d and + // its remainder. By doubling both, and then correcting the + // remainder, we can compute the larger division. + // don't care about overflow here - in fact, we expect it + proposed_m += proposed_m; + const uint64_t twice_rem = rem + rem; + if (twice_rem >= d || twice_rem < rem) proposed_m += 1; + more = floor_log_2_d | LIBDIVIDE_ADD_MARKER; + } + result.magic = 1 + proposed_m; + result.more = more; + // result.more's shift should in general be ceil_log_2_d. But if we + // used the smaller power, we subtract one from the shift because we're + // using the smaller power. If we're using the larger power, we + // subtract one from the shift because it's taken care of by the add + // indicator. So floor_log_2_d happens to be correct in both cases, + // which is why we do it outside of the if statement. + } + return result; +} + +struct libdivide_u64_t libdivide_u64_gen(uint64_t d) { + return libdivide_internal_u64_gen(d, 0); +} + +struct libdivide_u64_branchfree_t libdivide_u64_branchfree_gen(uint64_t d) { + if (d == 1) { + LIBDIVIDE_ERROR("branchfree divider must be != 1"); + } + struct libdivide_u64_t tmp = libdivide_internal_u64_gen(d, 1); + struct libdivide_u64_branchfree_t ret = {tmp.magic, (uint8_t)(tmp.more & LIBDIVIDE_64_SHIFT_MASK)}; + return ret; +} + +uint64_t libdivide_u64_do(uint64_t numer, const struct libdivide_u64_t *denom) { + uint8_t more = denom->more; + if (!denom->magic) { + return numer >> more; + } + else { + uint64_t q = libdivide_mullhi_u64(denom->magic, numer); + if (more & LIBDIVIDE_ADD_MARKER) { + uint64_t t = ((numer - q) >> 1) + q; + return t >> (more & LIBDIVIDE_64_SHIFT_MASK); + } + else { + // All upper bits are 0, + // don't need to mask them off. + return q >> more; + } + } +} + +uint64_t libdivide_u64_branchfree_do(uint64_t numer, const struct libdivide_u64_branchfree_t *denom) { + uint64_t q = libdivide_mullhi_u64(denom->magic, numer); + uint64_t t = ((numer - q) >> 1) + q; + return t >> denom->more; +} + +uint64_t libdivide_u64_recover(const struct libdivide_u64_t *denom) { + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK; + + if (!denom->magic) { + return 1ULL << shift; + } else if (!(more & LIBDIVIDE_ADD_MARKER)) { + // We compute q = n/d = n*m / 2^(64 + shift) + // Therefore we have d = 2^(64 + shift) / m + // We need to ceil it. + // We know d is not a power of 2, so m is not a power of 2, + // so we can just add 1 to the floor + uint64_t hi_dividend = 1ULL << shift; + uint64_t rem_ignored; + return 1 + libdivide_128_div_64_to_64(hi_dividend, 0, denom->magic, &rem_ignored); + } else { + // Here we wish to compute d = 2^(64+shift+1)/(m+2^64). + // Notice (m + 2^64) is a 65 bit number. This gets hairy. See + // libdivide_u32_recover for more on what we do here. + // TODO: do something better than 128 bit math + + // Full n is a (potentially) 129 bit value + // half_n is a 128 bit value + // Compute the hi half of half_n. Low half is 0. + uint64_t half_n_hi = 1ULL << shift, half_n_lo = 0; + // d is a 65 bit value. The high bit is always set to 1. + const uint64_t d_hi = 1, d_lo = denom->magic; + // Note that the quotient is guaranteed <= 64 bits, + // but the remainder may need 65! + uint64_t r_hi, r_lo; + uint64_t half_q = libdivide_128_div_128_to_64(half_n_hi, half_n_lo, d_hi, d_lo, &r_hi, &r_lo); + // We computed 2^(64+shift)/(m+2^64) + // Double the remainder ('dr') and check if that is larger than d + // Note that d is a 65 bit value, so r1 is small and so r1 + r1 + // cannot overflow + uint64_t dr_lo = r_lo + r_lo; + uint64_t dr_hi = r_hi + r_hi + (dr_lo < r_lo); // last term is carry + int dr_exceeds_d = (dr_hi > d_hi) || (dr_hi == d_hi && dr_lo >= d_lo); + uint64_t full_q = half_q + half_q + (dr_exceeds_d ? 1 : 0); + return full_q + 1; + } +} + +uint64_t libdivide_u64_branchfree_recover(const struct libdivide_u64_branchfree_t *denom) { + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK; + + if (!denom->magic) { + return 1ULL << (shift + 1); + } else { + // Here we wish to compute d = 2^(64+shift+1)/(m+2^64). + // Notice (m + 2^64) is a 65 bit number. This gets hairy. See + // libdivide_u32_recover for more on what we do here. + // TODO: do something better than 128 bit math + + // Full n is a (potentially) 129 bit value + // half_n is a 128 bit value + // Compute the hi half of half_n. Low half is 0. + uint64_t half_n_hi = 1ULL << shift, half_n_lo = 0; + // d is a 65 bit value. The high bit is always set to 1. + const uint64_t d_hi = 1, d_lo = denom->magic; + // Note that the quotient is guaranteed <= 64 bits, + // but the remainder may need 65! + uint64_t r_hi, r_lo; + uint64_t half_q = libdivide_128_div_128_to_64(half_n_hi, half_n_lo, d_hi, d_lo, &r_hi, &r_lo); + // We computed 2^(64+shift)/(m+2^64) + // Double the remainder ('dr') and check if that is larger than d + // Note that d is a 65 bit value, so r1 is small and so r1 + r1 + // cannot overflow + uint64_t dr_lo = r_lo + r_lo; + uint64_t dr_hi = r_hi + r_hi + (dr_lo < r_lo); // last term is carry + int dr_exceeds_d = (dr_hi > d_hi) || (dr_hi == d_hi && dr_lo >= d_lo); + uint64_t full_q = half_q + half_q + (dr_exceeds_d ? 1 : 0); + return full_q + 1; + } +} + +/////////// SINT32 + +static inline struct libdivide_s32_t libdivide_internal_s32_gen(int32_t d, int branchfree) { + if (d == 0) { + LIBDIVIDE_ERROR("divider must be != 0"); + } + + struct libdivide_s32_t result; + + // If d is a power of 2, or negative a power of 2, we have to use a shift. + // This is especially important because the magic algorithm fails for -1. + // To check if d is a power of 2 or its inverse, it suffices to check + // whether its absolute value has exactly one bit set. This works even for + // INT_MIN, because abs(INT_MIN) == INT_MIN, and INT_MIN has one bit set + // and is a power of 2. + uint32_t ud = (uint32_t)d; + uint32_t absD = (d < 0) ? -ud : ud; + uint32_t floor_log_2_d = 31 - libdivide_count_leading_zeros32(absD); + // check if exactly one bit is set, + // don't care if absD is 0 since that's divide by zero + if ((absD & (absD - 1)) == 0) { + // Branchfree and normal paths are exactly the same + result.magic = 0; + result.more = floor_log_2_d | (d < 0 ? LIBDIVIDE_NEGATIVE_DIVISOR : 0); + } else { + LIBDIVIDE_ASSERT(floor_log_2_d >= 1); + + uint8_t more; + // the dividend here is 2**(floor_log_2_d + 31), so the low 32 bit word + // is 0 and the high word is floor_log_2_d - 1 + uint32_t rem, proposed_m; + proposed_m = libdivide_64_div_32_to_32(1U << (floor_log_2_d - 1), 0, absD, &rem); + const uint32_t e = absD - rem; + + // We are going to start with a power of floor_log_2_d - 1. + // This works if works if e < 2**floor_log_2_d. + if (!branchfree && e < (1U << floor_log_2_d)) { + // This power works + more = floor_log_2_d - 1; + } else { + // We need to go one higher. This should not make proposed_m + // overflow, but it will make it negative when interpreted as an + // int32_t. + proposed_m += proposed_m; + const uint32_t twice_rem = rem + rem; + if (twice_rem >= absD || twice_rem < rem) proposed_m += 1; + more = floor_log_2_d | LIBDIVIDE_ADD_MARKER; + } + + proposed_m += 1; + int32_t magic = (int32_t)proposed_m; + + // Mark if we are negative. Note we only negate the magic number in the + // branchfull case. + if (d < 0) { + more |= LIBDIVIDE_NEGATIVE_DIVISOR; + if (!branchfree) { + magic = -magic; + } + } + + result.more = more; + result.magic = magic; + } + return result; +} + +struct libdivide_s32_t libdivide_s32_gen(int32_t d) { + return libdivide_internal_s32_gen(d, 0); +} + +struct libdivide_s32_branchfree_t libdivide_s32_branchfree_gen(int32_t d) { + struct libdivide_s32_t tmp = libdivide_internal_s32_gen(d, 1); + struct libdivide_s32_branchfree_t result = {tmp.magic, tmp.more}; + return result; +} + +int32_t libdivide_s32_do(int32_t numer, const struct libdivide_s32_t *denom) { + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK; + + if (!denom->magic) { + uint32_t sign = (int8_t)more >> 7; + uint32_t mask = (1U << shift) - 1; + uint32_t uq = numer + ((numer >> 31) & mask); + int32_t q = (int32_t)uq; + q >>= shift; + q = (q ^ sign) - sign; + return q; + } else { + uint32_t uq = (uint32_t)libdivide_mullhi_s32(denom->magic, numer); + if (more & LIBDIVIDE_ADD_MARKER) { + // must be arithmetic shift and then sign extend + int32_t sign = (int8_t)more >> 7; + // q += (more < 0 ? -numer : numer) + // cast required to avoid UB + uq += ((uint32_t)numer ^ sign) - sign; + } + int32_t q = (int32_t)uq; + q >>= shift; + q += (q < 0); + return q; + } +} + +int32_t libdivide_s32_branchfree_do(int32_t numer, const struct libdivide_s32_branchfree_t *denom) { + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK; + // must be arithmetic shift and then sign extend + int32_t sign = (int8_t)more >> 7; + int32_t magic = denom->magic; + int32_t q = libdivide_mullhi_s32(magic, numer); + q += numer; + + // If q is non-negative, we have nothing to do + // If q is negative, we want to add either (2**shift)-1 if d is a power of + // 2, or (2**shift) if it is not a power of 2 + uint32_t is_power_of_2 = (magic == 0); + uint32_t q_sign = (uint32_t)(q >> 31); + q += q_sign & ((1U << shift) - is_power_of_2); + + // Now arithmetic right shift + q >>= shift; + // Negate if needed + q = (q ^ sign) - sign; + + return q; +} + +int32_t libdivide_s32_recover(const struct libdivide_s32_t *denom) { + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK; + if (!denom->magic) { + uint32_t absD = 1U << shift; + if (more & LIBDIVIDE_NEGATIVE_DIVISOR) { + absD = -absD; + } + return (int32_t)absD; + } else { + // Unsigned math is much easier + // We negate the magic number only in the branchfull case, and we don't + // know which case we're in. However we have enough information to + // determine the correct sign of the magic number. The divisor was + // negative if LIBDIVIDE_NEGATIVE_DIVISOR is set. If ADD_MARKER is set, + // the magic number's sign is opposite that of the divisor. + // We want to compute the positive magic number. + int negative_divisor = (more & LIBDIVIDE_NEGATIVE_DIVISOR); + int magic_was_negated = (more & LIBDIVIDE_ADD_MARKER) + ? denom->magic > 0 : denom->magic < 0; + + // Handle the power of 2 case (including branchfree) + if (denom->magic == 0) { + int32_t result = 1U << shift; + return negative_divisor ? -result : result; + } + + uint32_t d = (uint32_t)(magic_was_negated ? -denom->magic : denom->magic); + uint64_t n = 1ULL << (32 + shift); // this shift cannot exceed 30 + uint32_t q = (uint32_t)(n / d); + int32_t result = (int32_t)q; + result += 1; + return negative_divisor ? -result : result; + } +} + +int32_t libdivide_s32_branchfree_recover(const struct libdivide_s32_branchfree_t *denom) { + return libdivide_s32_recover((const struct libdivide_s32_t *)denom); +} + +///////////// SINT64 + +static inline struct libdivide_s64_t libdivide_internal_s64_gen(int64_t d, int branchfree) { + if (d == 0) { + LIBDIVIDE_ERROR("divider must be != 0"); + } + + struct libdivide_s64_t result; + + // If d is a power of 2, or negative a power of 2, we have to use a shift. + // This is especially important because the magic algorithm fails for -1. + // To check if d is a power of 2 or its inverse, it suffices to check + // whether its absolute value has exactly one bit set. This works even for + // INT_MIN, because abs(INT_MIN) == INT_MIN, and INT_MIN has one bit set + // and is a power of 2. + uint64_t ud = (uint64_t)d; + uint64_t absD = (d < 0) ? -ud : ud; + uint32_t floor_log_2_d = 63 - libdivide_count_leading_zeros64(absD); + // check if exactly one bit is set, + // don't care if absD is 0 since that's divide by zero + if ((absD & (absD - 1)) == 0) { + // Branchfree and non-branchfree cases are the same + result.magic = 0; + result.more = floor_log_2_d | (d < 0 ? LIBDIVIDE_NEGATIVE_DIVISOR : 0); + } else { + // the dividend here is 2**(floor_log_2_d + 63), so the low 64 bit word + // is 0 and the high word is floor_log_2_d - 1 + uint8_t more; + uint64_t rem, proposed_m; + proposed_m = libdivide_128_div_64_to_64(1ULL << (floor_log_2_d - 1), 0, absD, &rem); + const uint64_t e = absD - rem; + + // We are going to start with a power of floor_log_2_d - 1. + // This works if works if e < 2**floor_log_2_d. + if (!branchfree && e < (1ULL << floor_log_2_d)) { + // This power works + more = floor_log_2_d - 1; + } else { + // We need to go one higher. This should not make proposed_m + // overflow, but it will make it negative when interpreted as an + // int32_t. + proposed_m += proposed_m; + const uint64_t twice_rem = rem + rem; + if (twice_rem >= absD || twice_rem < rem) proposed_m += 1; + // note that we only set the LIBDIVIDE_NEGATIVE_DIVISOR bit if we + // also set ADD_MARKER this is an annoying optimization that + // enables algorithm #4 to avoid the mask. However we always set it + // in the branchfree case + more = floor_log_2_d | LIBDIVIDE_ADD_MARKER; + } + proposed_m += 1; + int64_t magic = (int64_t)proposed_m; + + // Mark if we are negative + if (d < 0) { + more |= LIBDIVIDE_NEGATIVE_DIVISOR; + if (!branchfree) { + magic = -magic; + } + } + + result.more = more; + result.magic = magic; + } + return result; +} + +struct libdivide_s64_t libdivide_s64_gen(int64_t d) { + return libdivide_internal_s64_gen(d, 0); +} + +struct libdivide_s64_branchfree_t libdivide_s64_branchfree_gen(int64_t d) { + struct libdivide_s64_t tmp = libdivide_internal_s64_gen(d, 1); + struct libdivide_s64_branchfree_t ret = {tmp.magic, tmp.more}; + return ret; +} + +int64_t libdivide_s64_do(int64_t numer, const struct libdivide_s64_t *denom) { + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK; + + if (!denom->magic) { // shift path + uint64_t mask = (1ULL << shift) - 1; + uint64_t uq = numer + ((numer >> 63) & mask); + int64_t q = (int64_t)uq; + q >>= shift; + // must be arithmetic shift and then sign-extend + int64_t sign = (int8_t)more >> 7; + q = (q ^ sign) - sign; + return q; + } else { + uint64_t uq = (uint64_t)libdivide_mullhi_s64(denom->magic, numer); + if (more & LIBDIVIDE_ADD_MARKER) { + // must be arithmetic shift and then sign extend + int64_t sign = (int8_t)more >> 7; + // q += (more < 0 ? -numer : numer) + // cast required to avoid UB + uq += ((uint64_t)numer ^ sign) - sign; + } + int64_t q = (int64_t)uq; + q >>= shift; + q += (q < 0); + return q; + } +} + +int64_t libdivide_s64_branchfree_do(int64_t numer, const struct libdivide_s64_branchfree_t *denom) { + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK; + // must be arithmetic shift and then sign extend + int64_t sign = (int8_t)more >> 7; + int64_t magic = denom->magic; + int64_t q = libdivide_mullhi_s64(magic, numer); + q += numer; + + // If q is non-negative, we have nothing to do. + // If q is negative, we want to add either (2**shift)-1 if d is a power of + // 2, or (2**shift) if it is not a power of 2. + uint64_t is_power_of_2 = (magic == 0); + uint64_t q_sign = (uint64_t)(q >> 63); + q += q_sign & ((1ULL << shift) - is_power_of_2); + + // Arithmetic right shift + q >>= shift; + // Negate if needed + q = (q ^ sign) - sign; + + return q; +} + +int64_t libdivide_s64_recover(const struct libdivide_s64_t *denom) { + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK; + if (denom->magic == 0) { // shift path + uint64_t absD = 1ULL << shift; + if (more & LIBDIVIDE_NEGATIVE_DIVISOR) { + absD = -absD; + } + return (int64_t)absD; + } else { + // Unsigned math is much easier + int negative_divisor = (more & LIBDIVIDE_NEGATIVE_DIVISOR); + int magic_was_negated = (more & LIBDIVIDE_ADD_MARKER) + ? denom->magic > 0 : denom->magic < 0; + + uint64_t d = (uint64_t)(magic_was_negated ? -denom->magic : denom->magic); + uint64_t n_hi = 1ULL << shift, n_lo = 0; + uint64_t rem_ignored; + uint64_t q = libdivide_128_div_64_to_64(n_hi, n_lo, d, &rem_ignored); + int64_t result = (int64_t)(q + 1); + if (negative_divisor) { + result = -result; + } + return result; + } +} + +int64_t libdivide_s64_branchfree_recover(const struct libdivide_s64_branchfree_t *denom) { + return libdivide_s64_recover((const struct libdivide_s64_t *)denom); +} + +#if defined(LIBDIVIDE_AVX512) + +static inline __m512i libdivide_u32_do_vector(__m512i numers, const struct libdivide_u32_t *denom); +static inline __m512i libdivide_s32_do_vector(__m512i numers, const struct libdivide_s32_t *denom); +static inline __m512i libdivide_u64_do_vector(__m512i numers, const struct libdivide_u64_t *denom); +static inline __m512i libdivide_s64_do_vector(__m512i numers, const struct libdivide_s64_t *denom); + +static inline __m512i libdivide_u32_branchfree_do_vector(__m512i numers, const struct libdivide_u32_branchfree_t *denom); +static inline __m512i libdivide_s32_branchfree_do_vector(__m512i numers, const struct libdivide_s32_branchfree_t *denom); +static inline __m512i libdivide_u64_branchfree_do_vector(__m512i numers, const struct libdivide_u64_branchfree_t *denom); +static inline __m512i libdivide_s64_branchfree_do_vector(__m512i numers, const struct libdivide_s64_branchfree_t *denom); + +//////// Internal Utility Functions + +static inline __m512i libdivide_s64_signbits(__m512i v) {; + return _mm512_srai_epi64(v, 63); +} + +static inline __m512i libdivide_s64_shift_right_vector(__m512i v, int amt) { + return _mm512_srai_epi64(v, amt); +} + +// Here, b is assumed to contain one 32-bit value repeated. +static inline __m512i libdivide_mullhi_u32_vector(__m512i a, __m512i b) { + __m512i hi_product_0Z2Z = _mm512_srli_epi64(_mm512_mul_epu32(a, b), 32); + __m512i a1X3X = _mm512_srli_epi64(a, 32); + __m512i mask = _mm512_set_epi32(-1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0); + __m512i hi_product_Z1Z3 = _mm512_and_si512(_mm512_mul_epu32(a1X3X, b), mask); + return _mm512_or_si512(hi_product_0Z2Z, hi_product_Z1Z3); +} + +// b is one 32-bit value repeated. +static inline __m512i libdivide_mullhi_s32_vector(__m512i a, __m512i b) { + __m512i hi_product_0Z2Z = _mm512_srli_epi64(_mm512_mul_epi32(a, b), 32); + __m512i a1X3X = _mm512_srli_epi64(a, 32); + __m512i mask = _mm512_set_epi32(-1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0, -1, 0); + __m512i hi_product_Z1Z3 = _mm512_and_si512(_mm512_mul_epi32(a1X3X, b), mask); + return _mm512_or_si512(hi_product_0Z2Z, hi_product_Z1Z3); +} + +// Here, y is assumed to contain one 64-bit value repeated. +// https://stackoverflow.com/a/28827013 +static inline __m512i libdivide_mullhi_u64_vector(__m512i x, __m512i y) { + __m512i lomask = _mm512_set1_epi64(0xffffffff); + __m512i xh = _mm512_shuffle_epi32(x, (_MM_PERM_ENUM) 0xB1); + __m512i yh = _mm512_shuffle_epi32(y, (_MM_PERM_ENUM) 0xB1); + __m512i w0 = _mm512_mul_epu32(x, y); + __m512i w1 = _mm512_mul_epu32(x, yh); + __m512i w2 = _mm512_mul_epu32(xh, y); + __m512i w3 = _mm512_mul_epu32(xh, yh); + __m512i w0h = _mm512_srli_epi64(w0, 32); + __m512i s1 = _mm512_add_epi64(w1, w0h); + __m512i s1l = _mm512_and_si512(s1, lomask); + __m512i s1h = _mm512_srli_epi64(s1, 32); + __m512i s2 = _mm512_add_epi64(w2, s1l); + __m512i s2h = _mm512_srli_epi64(s2, 32); + __m512i hi = _mm512_add_epi64(w3, s1h); + hi = _mm512_add_epi64(hi, s2h); + + return hi; +} + +// y is one 64-bit value repeated. +static inline __m512i libdivide_mullhi_s64_vector(__m512i x, __m512i y) { + __m512i p = libdivide_mullhi_u64_vector(x, y); + __m512i t1 = _mm512_and_si512(libdivide_s64_signbits(x), y); + __m512i t2 = _mm512_and_si512(libdivide_s64_signbits(y), x); + p = _mm512_sub_epi64(p, t1); + p = _mm512_sub_epi64(p, t2); + return p; +} + +////////// UINT32 + +__m512i libdivide_u32_do_vector(__m512i numers, const struct libdivide_u32_t *denom) { + uint8_t more = denom->more; + if (!denom->magic) { + return _mm512_srli_epi32(numers, more); + } + else { + __m512i q = libdivide_mullhi_u32_vector(numers, _mm512_set1_epi32(denom->magic)); + if (more & LIBDIVIDE_ADD_MARKER) { + // uint32_t t = ((numer - q) >> 1) + q; + // return t >> denom->shift; + uint32_t shift = more & LIBDIVIDE_32_SHIFT_MASK; + __m512i t = _mm512_add_epi32(_mm512_srli_epi32(_mm512_sub_epi32(numers, q), 1), q); + return _mm512_srli_epi32(t, shift); + } + else { + return _mm512_srli_epi32(q, more); + } + } +} + +__m512i libdivide_u32_branchfree_do_vector(__m512i numers, const struct libdivide_u32_branchfree_t *denom) { + __m512i q = libdivide_mullhi_u32_vector(numers, _mm512_set1_epi32(denom->magic)); + __m512i t = _mm512_add_epi32(_mm512_srli_epi32(_mm512_sub_epi32(numers, q), 1), q); + return _mm512_srli_epi32(t, denom->more); +} + +////////// UINT64 + +__m512i libdivide_u64_do_vector(__m512i numers, const struct libdivide_u64_t *denom) { + uint8_t more = denom->more; + if (!denom->magic) { + return _mm512_srli_epi64(numers, more); + } + else { + __m512i q = libdivide_mullhi_u64_vector(numers, _mm512_set1_epi64(denom->magic)); + if (more & LIBDIVIDE_ADD_MARKER) { + // uint32_t t = ((numer - q) >> 1) + q; + // return t >> denom->shift; + uint32_t shift = more & LIBDIVIDE_64_SHIFT_MASK; + __m512i t = _mm512_add_epi64(_mm512_srli_epi64(_mm512_sub_epi64(numers, q), 1), q); + return _mm512_srli_epi64(t, shift); + } + else { + return _mm512_srli_epi64(q, more); + } + } +} + +__m512i libdivide_u64_branchfree_do_vector(__m512i numers, const struct libdivide_u64_branchfree_t *denom) { + __m512i q = libdivide_mullhi_u64_vector(numers, _mm512_set1_epi64(denom->magic)); + __m512i t = _mm512_add_epi64(_mm512_srli_epi64(_mm512_sub_epi64(numers, q), 1), q); + return _mm512_srli_epi64(t, denom->more); +} + +////////// SINT32 + +__m512i libdivide_s32_do_vector(__m512i numers, const struct libdivide_s32_t *denom) { + uint8_t more = denom->more; + if (!denom->magic) { + uint32_t shift = more & LIBDIVIDE_32_SHIFT_MASK; + uint32_t mask = (1U << shift) - 1; + __m512i roundToZeroTweak = _mm512_set1_epi32(mask); + // q = numer + ((numer >> 31) & roundToZeroTweak); + __m512i q = _mm512_add_epi32(numers, _mm512_and_si512(_mm512_srai_epi32(numers, 31), roundToZeroTweak)); + q = _mm512_srai_epi32(q, shift); + __m512i sign = _mm512_set1_epi32((int8_t)more >> 7); + // q = (q ^ sign) - sign; + q = _mm512_sub_epi32(_mm512_xor_si512(q, sign), sign); + return q; + } + else { + __m512i q = libdivide_mullhi_s32_vector(numers, _mm512_set1_epi32(denom->magic)); + if (more & LIBDIVIDE_ADD_MARKER) { + // must be arithmetic shift + __m512i sign = _mm512_set1_epi32((int8_t)more >> 7); + // q += ((numer ^ sign) - sign); + q = _mm512_add_epi32(q, _mm512_sub_epi32(_mm512_xor_si512(numers, sign), sign)); + } + // q >>= shift + q = _mm512_srai_epi32(q, more & LIBDIVIDE_32_SHIFT_MASK); + q = _mm512_add_epi32(q, _mm512_srli_epi32(q, 31)); // q += (q < 0) + return q; + } +} + +__m512i libdivide_s32_branchfree_do_vector(__m512i numers, const struct libdivide_s32_branchfree_t *denom) { + int32_t magic = denom->magic; + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK; + // must be arithmetic shift + __m512i sign = _mm512_set1_epi32((int8_t)more >> 7); + __m512i q = libdivide_mullhi_s32_vector(numers, _mm512_set1_epi32(magic)); + q = _mm512_add_epi32(q, numers); // q += numers + + // If q is non-negative, we have nothing to do + // If q is negative, we want to add either (2**shift)-1 if d is + // a power of 2, or (2**shift) if it is not a power of 2 + uint32_t is_power_of_2 = (magic == 0); + __m512i q_sign = _mm512_srai_epi32(q, 31); // q_sign = q >> 31 + __m512i mask = _mm512_set1_epi32((1U << shift) - is_power_of_2); + q = _mm512_add_epi32(q, _mm512_and_si512(q_sign, mask)); // q = q + (q_sign & mask) + q = _mm512_srai_epi32(q, shift); // q >>= shift + q = _mm512_sub_epi32(_mm512_xor_si512(q, sign), sign); // q = (q ^ sign) - sign + return q; +} + +////////// SINT64 + +__m512i libdivide_s64_do_vector(__m512i numers, const struct libdivide_s64_t *denom) { + uint8_t more = denom->more; + int64_t magic = denom->magic; + if (magic == 0) { // shift path + uint32_t shift = more & LIBDIVIDE_64_SHIFT_MASK; + uint64_t mask = (1ULL << shift) - 1; + __m512i roundToZeroTweak = _mm512_set1_epi64(mask); + // q = numer + ((numer >> 63) & roundToZeroTweak); + __m512i q = _mm512_add_epi64(numers, _mm512_and_si512(libdivide_s64_signbits(numers), roundToZeroTweak)); + q = libdivide_s64_shift_right_vector(q, shift); + __m512i sign = _mm512_set1_epi32((int8_t)more >> 7); + // q = (q ^ sign) - sign; + q = _mm512_sub_epi64(_mm512_xor_si512(q, sign), sign); + return q; + } + else { + __m512i q = libdivide_mullhi_s64_vector(numers, _mm512_set1_epi64(magic)); + if (more & LIBDIVIDE_ADD_MARKER) { + // must be arithmetic shift + __m512i sign = _mm512_set1_epi32((int8_t)more >> 7); + // q += ((numer ^ sign) - sign); + q = _mm512_add_epi64(q, _mm512_sub_epi64(_mm512_xor_si512(numers, sign), sign)); + } + // q >>= denom->mult_path.shift + q = libdivide_s64_shift_right_vector(q, more & LIBDIVIDE_64_SHIFT_MASK); + q = _mm512_add_epi64(q, _mm512_srli_epi64(q, 63)); // q += (q < 0) + return q; + } +} + +__m512i libdivide_s64_branchfree_do_vector(__m512i numers, const struct libdivide_s64_branchfree_t *denom) { + int64_t magic = denom->magic; + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK; + // must be arithmetic shift + __m512i sign = _mm512_set1_epi32((int8_t)more >> 7); + + // libdivide_mullhi_s64(numers, magic); + __m512i q = libdivide_mullhi_s64_vector(numers, _mm512_set1_epi64(magic)); + q = _mm512_add_epi64(q, numers); // q += numers + + // If q is non-negative, we have nothing to do. + // If q is negative, we want to add either (2**shift)-1 if d is + // a power of 2, or (2**shift) if it is not a power of 2. + uint32_t is_power_of_2 = (magic == 0); + __m512i q_sign = libdivide_s64_signbits(q); // q_sign = q >> 63 + __m512i mask = _mm512_set1_epi64((1ULL << shift) - is_power_of_2); + q = _mm512_add_epi64(q, _mm512_and_si512(q_sign, mask)); // q = q + (q_sign & mask) + q = libdivide_s64_shift_right_vector(q, shift); // q >>= shift + q = _mm512_sub_epi64(_mm512_xor_si512(q, sign), sign); // q = (q ^ sign) - sign + return q; +} + +#elif defined(LIBDIVIDE_AVX2) + +static inline __m256i libdivide_u32_do_vector(__m256i numers, const struct libdivide_u32_t *denom); +static inline __m256i libdivide_s32_do_vector(__m256i numers, const struct libdivide_s32_t *denom); +static inline __m256i libdivide_u64_do_vector(__m256i numers, const struct libdivide_u64_t *denom); +static inline __m256i libdivide_s64_do_vector(__m256i numers, const struct libdivide_s64_t *denom); + +static inline __m256i libdivide_u32_branchfree_do_vector(__m256i numers, const struct libdivide_u32_branchfree_t *denom); +static inline __m256i libdivide_s32_branchfree_do_vector(__m256i numers, const struct libdivide_s32_branchfree_t *denom); +static inline __m256i libdivide_u64_branchfree_do_vector(__m256i numers, const struct libdivide_u64_branchfree_t *denom); +static inline __m256i libdivide_s64_branchfree_do_vector(__m256i numers, const struct libdivide_s64_branchfree_t *denom); + +//////// Internal Utility Functions + +// Implementation of _mm256_srai_epi64(v, 63) (from AVX512). +static inline __m256i libdivide_s64_signbits(__m256i v) { + __m256i hiBitsDuped = _mm256_shuffle_epi32(v, _MM_SHUFFLE(3, 3, 1, 1)); + __m256i signBits = _mm256_srai_epi32(hiBitsDuped, 31); + return signBits; +} + +// Implementation of _mm256_srai_epi64 (from AVX512). +static inline __m256i libdivide_s64_shift_right_vector(__m256i v, int amt) { + const int b = 64 - amt; + __m256i m = _mm256_set1_epi64x(1ULL << (b - 1)); + __m256i x = _mm256_srli_epi64(v, amt); + __m256i result = _mm256_sub_epi64(_mm256_xor_si256(x, m), m); + return result; +} + +// Here, b is assumed to contain one 32-bit value repeated. +static inline __m256i libdivide_mullhi_u32_vector(__m256i a, __m256i b) { + __m256i hi_product_0Z2Z = _mm256_srli_epi64(_mm256_mul_epu32(a, b), 32); + __m256i a1X3X = _mm256_srli_epi64(a, 32); + __m256i mask = _mm256_set_epi32(-1, 0, -1, 0, -1, 0, -1, 0); + __m256i hi_product_Z1Z3 = _mm256_and_si256(_mm256_mul_epu32(a1X3X, b), mask); + return _mm256_or_si256(hi_product_0Z2Z, hi_product_Z1Z3); +} + +// b is one 32-bit value repeated. +static inline __m256i libdivide_mullhi_s32_vector(__m256i a, __m256i b) { + __m256i hi_product_0Z2Z = _mm256_srli_epi64(_mm256_mul_epi32(a, b), 32); + __m256i a1X3X = _mm256_srli_epi64(a, 32); + __m256i mask = _mm256_set_epi32(-1, 0, -1, 0, -1, 0, -1, 0); + __m256i hi_product_Z1Z3 = _mm256_and_si256(_mm256_mul_epi32(a1X3X, b), mask); + return _mm256_or_si256(hi_product_0Z2Z, hi_product_Z1Z3); +} + +// Here, y is assumed to contain one 64-bit value repeated. +// https://stackoverflow.com/a/28827013 +static inline __m256i libdivide_mullhi_u64_vector(__m256i x, __m256i y) { + __m256i lomask = _mm256_set1_epi64x(0xffffffff); + __m256i xh = _mm256_shuffle_epi32(x, 0xB1); // x0l, x0h, x1l, x1h + __m256i yh = _mm256_shuffle_epi32(y, 0xB1); // y0l, y0h, y1l, y1h + __m256i w0 = _mm256_mul_epu32(x, y); // x0l*y0l, x1l*y1l + __m256i w1 = _mm256_mul_epu32(x, yh); // x0l*y0h, x1l*y1h + __m256i w2 = _mm256_mul_epu32(xh, y); // x0h*y0l, x1h*y0l + __m256i w3 = _mm256_mul_epu32(xh, yh); // x0h*y0h, x1h*y1h + __m256i w0h = _mm256_srli_epi64(w0, 32); + __m256i s1 = _mm256_add_epi64(w1, w0h); + __m256i s1l = _mm256_and_si256(s1, lomask); + __m256i s1h = _mm256_srli_epi64(s1, 32); + __m256i s2 = _mm256_add_epi64(w2, s1l); + __m256i s2h = _mm256_srli_epi64(s2, 32); + __m256i hi = _mm256_add_epi64(w3, s1h); + hi = _mm256_add_epi64(hi, s2h); + + return hi; +} + +// y is one 64-bit value repeated. +static inline __m256i libdivide_mullhi_s64_vector(__m256i x, __m256i y) { + __m256i p = libdivide_mullhi_u64_vector(x, y); + __m256i t1 = _mm256_and_si256(libdivide_s64_signbits(x), y); + __m256i t2 = _mm256_and_si256(libdivide_s64_signbits(y), x); + p = _mm256_sub_epi64(p, t1); + p = _mm256_sub_epi64(p, t2); + return p; +} + +////////// UINT32 + +__m256i libdivide_u32_do_vector(__m256i numers, const struct libdivide_u32_t *denom) { + uint8_t more = denom->more; + if (!denom->magic) { + return _mm256_srli_epi32(numers, more); + } + else { + __m256i q = libdivide_mullhi_u32_vector(numers, _mm256_set1_epi32(denom->magic)); + if (more & LIBDIVIDE_ADD_MARKER) { + // uint32_t t = ((numer - q) >> 1) + q; + // return t >> denom->shift; + uint32_t shift = more & LIBDIVIDE_32_SHIFT_MASK; + __m256i t = _mm256_add_epi32(_mm256_srli_epi32(_mm256_sub_epi32(numers, q), 1), q); + return _mm256_srli_epi32(t, shift); + } + else { + return _mm256_srli_epi32(q, more); + } + } +} + +__m256i libdivide_u32_branchfree_do_vector(__m256i numers, const struct libdivide_u32_branchfree_t *denom) { + __m256i q = libdivide_mullhi_u32_vector(numers, _mm256_set1_epi32(denom->magic)); + __m256i t = _mm256_add_epi32(_mm256_srli_epi32(_mm256_sub_epi32(numers, q), 1), q); + return _mm256_srli_epi32(t, denom->more); +} + +////////// UINT64 + +__m256i libdivide_u64_do_vector(__m256i numers, const struct libdivide_u64_t *denom) { + uint8_t more = denom->more; + if (!denom->magic) { + return _mm256_srli_epi64(numers, more); + } + else { + __m256i q = libdivide_mullhi_u64_vector(numers, _mm256_set1_epi64x(denom->magic)); + if (more & LIBDIVIDE_ADD_MARKER) { + // uint32_t t = ((numer - q) >> 1) + q; + // return t >> denom->shift; + uint32_t shift = more & LIBDIVIDE_64_SHIFT_MASK; + __m256i t = _mm256_add_epi64(_mm256_srli_epi64(_mm256_sub_epi64(numers, q), 1), q); + return _mm256_srli_epi64(t, shift); + } + else { + return _mm256_srli_epi64(q, more); + } + } +} + +__m256i libdivide_u64_branchfree_do_vector(__m256i numers, const struct libdivide_u64_branchfree_t *denom) { + __m256i q = libdivide_mullhi_u64_vector(numers, _mm256_set1_epi64x(denom->magic)); + __m256i t = _mm256_add_epi64(_mm256_srli_epi64(_mm256_sub_epi64(numers, q), 1), q); + return _mm256_srli_epi64(t, denom->more); +} + +////////// SINT32 + +__m256i libdivide_s32_do_vector(__m256i numers, const struct libdivide_s32_t *denom) { + uint8_t more = denom->more; + if (!denom->magic) { + uint32_t shift = more & LIBDIVIDE_32_SHIFT_MASK; + uint32_t mask = (1U << shift) - 1; + __m256i roundToZeroTweak = _mm256_set1_epi32(mask); + // q = numer + ((numer >> 31) & roundToZeroTweak); + __m256i q = _mm256_add_epi32(numers, _mm256_and_si256(_mm256_srai_epi32(numers, 31), roundToZeroTweak)); + q = _mm256_srai_epi32(q, shift); + __m256i sign = _mm256_set1_epi32((int8_t)more >> 7); + // q = (q ^ sign) - sign; + q = _mm256_sub_epi32(_mm256_xor_si256(q, sign), sign); + return q; + } + else { + __m256i q = libdivide_mullhi_s32_vector(numers, _mm256_set1_epi32(denom->magic)); + if (more & LIBDIVIDE_ADD_MARKER) { + // must be arithmetic shift + __m256i sign = _mm256_set1_epi32((int8_t)more >> 7); + // q += ((numer ^ sign) - sign); + q = _mm256_add_epi32(q, _mm256_sub_epi32(_mm256_xor_si256(numers, sign), sign)); + } + // q >>= shift + q = _mm256_srai_epi32(q, more & LIBDIVIDE_32_SHIFT_MASK); + q = _mm256_add_epi32(q, _mm256_srli_epi32(q, 31)); // q += (q < 0) + return q; + } +} + +__m256i libdivide_s32_branchfree_do_vector(__m256i numers, const struct libdivide_s32_branchfree_t *denom) { + int32_t magic = denom->magic; + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK; + // must be arithmetic shift + __m256i sign = _mm256_set1_epi32((int8_t)more >> 7); + __m256i q = libdivide_mullhi_s32_vector(numers, _mm256_set1_epi32(magic)); + q = _mm256_add_epi32(q, numers); // q += numers + + // If q is non-negative, we have nothing to do + // If q is negative, we want to add either (2**shift)-1 if d is + // a power of 2, or (2**shift) if it is not a power of 2 + uint32_t is_power_of_2 = (magic == 0); + __m256i q_sign = _mm256_srai_epi32(q, 31); // q_sign = q >> 31 + __m256i mask = _mm256_set1_epi32((1U << shift) - is_power_of_2); + q = _mm256_add_epi32(q, _mm256_and_si256(q_sign, mask)); // q = q + (q_sign & mask) + q = _mm256_srai_epi32(q, shift); // q >>= shift + q = _mm256_sub_epi32(_mm256_xor_si256(q, sign), sign); // q = (q ^ sign) - sign + return q; +} + +////////// SINT64 + +__m256i libdivide_s64_do_vector(__m256i numers, const struct libdivide_s64_t *denom) { + uint8_t more = denom->more; + int64_t magic = denom->magic; + if (magic == 0) { // shift path + uint32_t shift = more & LIBDIVIDE_64_SHIFT_MASK; + uint64_t mask = (1ULL << shift) - 1; + __m256i roundToZeroTweak = _mm256_set1_epi64x(mask); + // q = numer + ((numer >> 63) & roundToZeroTweak); + __m256i q = _mm256_add_epi64(numers, _mm256_and_si256(libdivide_s64_signbits(numers), roundToZeroTweak)); + q = libdivide_s64_shift_right_vector(q, shift); + __m256i sign = _mm256_set1_epi32((int8_t)more >> 7); + // q = (q ^ sign) - sign; + q = _mm256_sub_epi64(_mm256_xor_si256(q, sign), sign); + return q; + } + else { + __m256i q = libdivide_mullhi_s64_vector(numers, _mm256_set1_epi64x(magic)); + if (more & LIBDIVIDE_ADD_MARKER) { + // must be arithmetic shift + __m256i sign = _mm256_set1_epi32((int8_t)more >> 7); + // q += ((numer ^ sign) - sign); + q = _mm256_add_epi64(q, _mm256_sub_epi64(_mm256_xor_si256(numers, sign), sign)); + } + // q >>= denom->mult_path.shift + q = libdivide_s64_shift_right_vector(q, more & LIBDIVIDE_64_SHIFT_MASK); + q = _mm256_add_epi64(q, _mm256_srli_epi64(q, 63)); // q += (q < 0) + return q; + } +} + +__m256i libdivide_s64_branchfree_do_vector(__m256i numers, const struct libdivide_s64_branchfree_t *denom) { + int64_t magic = denom->magic; + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK; + // must be arithmetic shift + __m256i sign = _mm256_set1_epi32((int8_t)more >> 7); + + // libdivide_mullhi_s64(numers, magic); + __m256i q = libdivide_mullhi_s64_vector(numers, _mm256_set1_epi64x(magic)); + q = _mm256_add_epi64(q, numers); // q += numers + + // If q is non-negative, we have nothing to do. + // If q is negative, we want to add either (2**shift)-1 if d is + // a power of 2, or (2**shift) if it is not a power of 2. + uint32_t is_power_of_2 = (magic == 0); + __m256i q_sign = libdivide_s64_signbits(q); // q_sign = q >> 63 + __m256i mask = _mm256_set1_epi64x((1ULL << shift) - is_power_of_2); + q = _mm256_add_epi64(q, _mm256_and_si256(q_sign, mask)); // q = q + (q_sign & mask) + q = libdivide_s64_shift_right_vector(q, shift); // q >>= shift + q = _mm256_sub_epi64(_mm256_xor_si256(q, sign), sign); // q = (q ^ sign) - sign + return q; +} + +#elif defined(LIBDIVIDE_SSE2) + +static inline __m128i libdivide_u32_do_vector(__m128i numers, const struct libdivide_u32_t *denom); +static inline __m128i libdivide_s32_do_vector(__m128i numers, const struct libdivide_s32_t *denom); +static inline __m128i libdivide_u64_do_vector(__m128i numers, const struct libdivide_u64_t *denom); +static inline __m128i libdivide_s64_do_vector(__m128i numers, const struct libdivide_s64_t *denom); + +static inline __m128i libdivide_u32_branchfree_do_vector(__m128i numers, const struct libdivide_u32_branchfree_t *denom); +static inline __m128i libdivide_s32_branchfree_do_vector(__m128i numers, const struct libdivide_s32_branchfree_t *denom); +static inline __m128i libdivide_u64_branchfree_do_vector(__m128i numers, const struct libdivide_u64_branchfree_t *denom); +static inline __m128i libdivide_s64_branchfree_do_vector(__m128i numers, const struct libdivide_s64_branchfree_t *denom); + +//////// Internal Utility Functions + +// Implementation of _mm_srai_epi64(v, 63) (from AVX512). +static inline __m128i libdivide_s64_signbits(__m128i v) { + __m128i hiBitsDuped = _mm_shuffle_epi32(v, _MM_SHUFFLE(3, 3, 1, 1)); + __m128i signBits = _mm_srai_epi32(hiBitsDuped, 31); + return signBits; +} + +// Implementation of _mm_srai_epi64 (from AVX512). +static inline __m128i libdivide_s64_shift_right_vector(__m128i v, int amt) { + const int b = 64 - amt; + __m128i m = _mm_set1_epi64x(1ULL << (b - 1)); + __m128i x = _mm_srli_epi64(v, amt); + __m128i result = _mm_sub_epi64(_mm_xor_si128(x, m), m); + return result; +} + +// Here, b is assumed to contain one 32-bit value repeated. +static inline __m128i libdivide_mullhi_u32_vector(__m128i a, __m128i b) { + __m128i hi_product_0Z2Z = _mm_srli_epi64(_mm_mul_epu32(a, b), 32); + __m128i a1X3X = _mm_srli_epi64(a, 32); + __m128i mask = _mm_set_epi32(-1, 0, -1, 0); + __m128i hi_product_Z1Z3 = _mm_and_si128(_mm_mul_epu32(a1X3X, b), mask); + return _mm_or_si128(hi_product_0Z2Z, hi_product_Z1Z3); +} + +// SSE2 does not have a signed multiplication instruction, but we can convert +// unsigned to signed pretty efficiently. Again, b is just a 32 bit value +// repeated four times. +static inline __m128i libdivide_mullhi_s32_vector(__m128i a, __m128i b) { + __m128i p = libdivide_mullhi_u32_vector(a, b); + // t1 = (a >> 31) & y, arithmetic shift + __m128i t1 = _mm_and_si128(_mm_srai_epi32(a, 31), b); + __m128i t2 = _mm_and_si128(_mm_srai_epi32(b, 31), a); + p = _mm_sub_epi32(p, t1); + p = _mm_sub_epi32(p, t2); + return p; +} + +// Here, y is assumed to contain one 64-bit value repeated. +// https://stackoverflow.com/a/28827013 +static inline __m128i libdivide_mullhi_u64_vector(__m128i x, __m128i y) { + __m128i lomask = _mm_set1_epi64x(0xffffffff); + __m128i xh = _mm_shuffle_epi32(x, 0xB1); // x0l, x0h, x1l, x1h + __m128i yh = _mm_shuffle_epi32(y, 0xB1); // y0l, y0h, y1l, y1h + __m128i w0 = _mm_mul_epu32(x, y); // x0l*y0l, x1l*y1l + __m128i w1 = _mm_mul_epu32(x, yh); // x0l*y0h, x1l*y1h + __m128i w2 = _mm_mul_epu32(xh, y); // x0h*y0l, x1h*y0l + __m128i w3 = _mm_mul_epu32(xh, yh); // x0h*y0h, x1h*y1h + __m128i w0h = _mm_srli_epi64(w0, 32); + __m128i s1 = _mm_add_epi64(w1, w0h); + __m128i s1l = _mm_and_si128(s1, lomask); + __m128i s1h = _mm_srli_epi64(s1, 32); + __m128i s2 = _mm_add_epi64(w2, s1l); + __m128i s2h = _mm_srli_epi64(s2, 32); + __m128i hi = _mm_add_epi64(w3, s1h); + hi = _mm_add_epi64(hi, s2h); + + return hi; +} + +// y is one 64-bit value repeated. +static inline __m128i libdivide_mullhi_s64_vector(__m128i x, __m128i y) { + __m128i p = libdivide_mullhi_u64_vector(x, y); + __m128i t1 = _mm_and_si128(libdivide_s64_signbits(x), y); + __m128i t2 = _mm_and_si128(libdivide_s64_signbits(y), x); + p = _mm_sub_epi64(p, t1); + p = _mm_sub_epi64(p, t2); + return p; +} + +////////// UINT32 + +__m128i libdivide_u32_do_vector(__m128i numers, const struct libdivide_u32_t *denom) { + uint8_t more = denom->more; + if (!denom->magic) { + return _mm_srli_epi32(numers, more); + } + else { + __m128i q = libdivide_mullhi_u32_vector(numers, _mm_set1_epi32(denom->magic)); + if (more & LIBDIVIDE_ADD_MARKER) { + // uint32_t t = ((numer - q) >> 1) + q; + // return t >> denom->shift; + uint32_t shift = more & LIBDIVIDE_32_SHIFT_MASK; + __m128i t = _mm_add_epi32(_mm_srli_epi32(_mm_sub_epi32(numers, q), 1), q); + return _mm_srli_epi32(t, shift); + } + else { + return _mm_srli_epi32(q, more); + } + } +} + +__m128i libdivide_u32_branchfree_do_vector(__m128i numers, const struct libdivide_u32_branchfree_t *denom) { + __m128i q = libdivide_mullhi_u32_vector(numers, _mm_set1_epi32(denom->magic)); + __m128i t = _mm_add_epi32(_mm_srli_epi32(_mm_sub_epi32(numers, q), 1), q); + return _mm_srli_epi32(t, denom->more); +} + +////////// UINT64 + +__m128i libdivide_u64_do_vector(__m128i numers, const struct libdivide_u64_t *denom) { + uint8_t more = denom->more; + if (!denom->magic) { + return _mm_srli_epi64(numers, more); + } + else { + __m128i q = libdivide_mullhi_u64_vector(numers, _mm_set1_epi64x(denom->magic)); + if (more & LIBDIVIDE_ADD_MARKER) { + // uint32_t t = ((numer - q) >> 1) + q; + // return t >> denom->shift; + uint32_t shift = more & LIBDIVIDE_64_SHIFT_MASK; + __m128i t = _mm_add_epi64(_mm_srli_epi64(_mm_sub_epi64(numers, q), 1), q); + return _mm_srli_epi64(t, shift); + } + else { + return _mm_srli_epi64(q, more); + } + } +} + +__m128i libdivide_u64_branchfree_do_vector(__m128i numers, const struct libdivide_u64_branchfree_t *denom) { + __m128i q = libdivide_mullhi_u64_vector(numers, _mm_set1_epi64x(denom->magic)); + __m128i t = _mm_add_epi64(_mm_srli_epi64(_mm_sub_epi64(numers, q), 1), q); + return _mm_srli_epi64(t, denom->more); +} + +////////// SINT32 + +__m128i libdivide_s32_do_vector(__m128i numers, const struct libdivide_s32_t *denom) { + uint8_t more = denom->more; + if (!denom->magic) { + uint32_t shift = more & LIBDIVIDE_32_SHIFT_MASK; + uint32_t mask = (1U << shift) - 1; + __m128i roundToZeroTweak = _mm_set1_epi32(mask); + // q = numer + ((numer >> 31) & roundToZeroTweak); + __m128i q = _mm_add_epi32(numers, _mm_and_si128(_mm_srai_epi32(numers, 31), roundToZeroTweak)); + q = _mm_srai_epi32(q, shift); + __m128i sign = _mm_set1_epi32((int8_t)more >> 7); + // q = (q ^ sign) - sign; + q = _mm_sub_epi32(_mm_xor_si128(q, sign), sign); + return q; + } + else { + __m128i q = libdivide_mullhi_s32_vector(numers, _mm_set1_epi32(denom->magic)); + if (more & LIBDIVIDE_ADD_MARKER) { + // must be arithmetic shift + __m128i sign = _mm_set1_epi32((int8_t)more >> 7); + // q += ((numer ^ sign) - sign); + q = _mm_add_epi32(q, _mm_sub_epi32(_mm_xor_si128(numers, sign), sign)); + } + // q >>= shift + q = _mm_srai_epi32(q, more & LIBDIVIDE_32_SHIFT_MASK); + q = _mm_add_epi32(q, _mm_srli_epi32(q, 31)); // q += (q < 0) + return q; + } +} + +__m128i libdivide_s32_branchfree_do_vector(__m128i numers, const struct libdivide_s32_branchfree_t *denom) { + int32_t magic = denom->magic; + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_32_SHIFT_MASK; + // must be arithmetic shift + __m128i sign = _mm_set1_epi32((int8_t)more >> 7); + __m128i q = libdivide_mullhi_s32_vector(numers, _mm_set1_epi32(magic)); + q = _mm_add_epi32(q, numers); // q += numers + + // If q is non-negative, we have nothing to do + // If q is negative, we want to add either (2**shift)-1 if d is + // a power of 2, or (2**shift) if it is not a power of 2 + uint32_t is_power_of_2 = (magic == 0); + __m128i q_sign = _mm_srai_epi32(q, 31); // q_sign = q >> 31 + __m128i mask = _mm_set1_epi32((1U << shift) - is_power_of_2); + q = _mm_add_epi32(q, _mm_and_si128(q_sign, mask)); // q = q + (q_sign & mask) + q = _mm_srai_epi32(q, shift); // q >>= shift + q = _mm_sub_epi32(_mm_xor_si128(q, sign), sign); // q = (q ^ sign) - sign + return q; +} + +////////// SINT64 + +__m128i libdivide_s64_do_vector(__m128i numers, const struct libdivide_s64_t *denom) { + uint8_t more = denom->more; + int64_t magic = denom->magic; + if (magic == 0) { // shift path + uint32_t shift = more & LIBDIVIDE_64_SHIFT_MASK; + uint64_t mask = (1ULL << shift) - 1; + __m128i roundToZeroTweak = _mm_set1_epi64x(mask); + // q = numer + ((numer >> 63) & roundToZeroTweak); + __m128i q = _mm_add_epi64(numers, _mm_and_si128(libdivide_s64_signbits(numers), roundToZeroTweak)); + q = libdivide_s64_shift_right_vector(q, shift); + __m128i sign = _mm_set1_epi32((int8_t)more >> 7); + // q = (q ^ sign) - sign; + q = _mm_sub_epi64(_mm_xor_si128(q, sign), sign); + return q; + } + else { + __m128i q = libdivide_mullhi_s64_vector(numers, _mm_set1_epi64x(magic)); + if (more & LIBDIVIDE_ADD_MARKER) { + // must be arithmetic shift + __m128i sign = _mm_set1_epi32((int8_t)more >> 7); + // q += ((numer ^ sign) - sign); + q = _mm_add_epi64(q, _mm_sub_epi64(_mm_xor_si128(numers, sign), sign)); + } + // q >>= denom->mult_path.shift + q = libdivide_s64_shift_right_vector(q, more & LIBDIVIDE_64_SHIFT_MASK); + q = _mm_add_epi64(q, _mm_srli_epi64(q, 63)); // q += (q < 0) + return q; + } +} + +__m128i libdivide_s64_branchfree_do_vector(__m128i numers, const struct libdivide_s64_branchfree_t *denom) { + int64_t magic = denom->magic; + uint8_t more = denom->more; + uint8_t shift = more & LIBDIVIDE_64_SHIFT_MASK; + // must be arithmetic shift + __m128i sign = _mm_set1_epi32((int8_t)more >> 7); + + // libdivide_mullhi_s64(numers, magic); + __m128i q = libdivide_mullhi_s64_vector(numers, _mm_set1_epi64x(magic)); + q = _mm_add_epi64(q, numers); // q += numers + + // If q is non-negative, we have nothing to do. + // If q is negative, we want to add either (2**shift)-1 if d is + // a power of 2, or (2**shift) if it is not a power of 2. + uint32_t is_power_of_2 = (magic == 0); + __m128i q_sign = libdivide_s64_signbits(q); // q_sign = q >> 63 + __m128i mask = _mm_set1_epi64x((1ULL << shift) - is_power_of_2); + q = _mm_add_epi64(q, _mm_and_si128(q_sign, mask)); // q = q + (q_sign & mask) + q = libdivide_s64_shift_right_vector(q, shift); // q >>= shift + q = _mm_sub_epi64(_mm_xor_si128(q, sign), sign); // q = (q ^ sign) - sign + return q; +} + +#endif + +/////////// C++ stuff + +#ifdef __cplusplus + +// The C++ divider class is templated on both an integer type +// (like uint64_t) and an algorithm type. +// * BRANCHFULL is the default algorithm type. +// * BRANCHFREE is the branchfree algorithm type. +enum { + BRANCHFULL, + BRANCHFREE +}; + +#if defined(LIBDIVIDE_AVX512) + #define LIBDIVIDE_VECTOR_TYPE __m512i +#elif defined(LIBDIVIDE_AVX2) + #define LIBDIVIDE_VECTOR_TYPE __m256i +#elif defined(LIBDIVIDE_SSE2) + #define LIBDIVIDE_VECTOR_TYPE __m128i +#endif + +#if !defined(LIBDIVIDE_VECTOR_TYPE) + #define LIBDIVIDE_DIVIDE_VECTOR(ALGO) +#else + #define LIBDIVIDE_DIVIDE_VECTOR(ALGO) \ + LIBDIVIDE_VECTOR_TYPE divide(LIBDIVIDE_VECTOR_TYPE n) const { \ + return libdivide_##ALGO##_do_vector(n, &denom); \ + } +#endif + +// The DISPATCHER_GEN() macro generates C++ methods (for the given integer +// and algorithm types) that redirect to libdivide's C API. +#define DISPATCHER_GEN(T, ALGO) \ + libdivide_##ALGO##_t denom; \ + dispatcher() { } \ + dispatcher(T d) \ + : denom(libdivide_##ALGO##_gen(d)) \ + { } \ + T divide(T n) const { \ + return libdivide_##ALGO##_do(n, &denom); \ + } \ + LIBDIVIDE_DIVIDE_VECTOR(ALGO) \ + T recover() const { \ + return libdivide_##ALGO##_recover(&denom); \ + } + +// The dispatcher selects a specific division algorithm for a given +// type and ALGO using partial template specialization. +template struct dispatcher { }; + +template<> struct dispatcher { DISPATCHER_GEN(int32_t, s32) }; +template<> struct dispatcher { DISPATCHER_GEN(int32_t, s32_branchfree) }; +template<> struct dispatcher { DISPATCHER_GEN(uint32_t, u32) }; +template<> struct dispatcher { DISPATCHER_GEN(uint32_t, u32_branchfree) }; +template<> struct dispatcher { DISPATCHER_GEN(int64_t, s64) }; +template<> struct dispatcher { DISPATCHER_GEN(int64_t, s64_branchfree) }; +template<> struct dispatcher { DISPATCHER_GEN(uint64_t, u64) }; +template<> struct dispatcher { DISPATCHER_GEN(uint64_t, u64_branchfree) }; + +// This is the main divider class for use by the user (C++ API). +// The actual division algorithm is selected using the dispatcher struct +// based on the integer and algorithm template parameters. +template +class divider { +public: + // We leave the default constructor empty so that creating + // an array of dividers and then initializing them + // later doesn't slow us down. + divider() { } + + // Constructor that takes the divisor as a parameter + divider(T d) : div(d) { } + + // Divides n by the divisor + T divide(T n) const { + return div.divide(n); + } + + // Recovers the divisor, returns the value that was + // used to initialize this divider object. + T recover() const { + return div.recover(); + } + + bool operator==(const divider& other) const { + return div.denom.magic == other.denom.magic && + div.denom.more == other.denom.more; + } + + bool operator!=(const divider& other) const { + return !(*this == other); + } + +#if defined(LIBDIVIDE_VECTOR_TYPE) + // Treats the vector as packed integer values with the same type as + // the divider (e.g. s32, u32, s64, u64) and divides each of + // them by the divider, returning the packed quotients. + LIBDIVIDE_VECTOR_TYPE divide(LIBDIVIDE_VECTOR_TYPE n) const { + return div.divide(n); + } +#endif + +private: + // Storage for the actual divisor + dispatcher::value, + std::is_signed::value, sizeof(T), ALGO> div; +}; + +// Overload of operator / for scalar division +template +T operator/(T n, const divider& div) { + return div.divide(n); +} + +// Overload of operator /= for scalar division +template +T& operator/=(T& n, const divider& div) { + n = div.divide(n); + return n; +} + +#if defined(LIBDIVIDE_VECTOR_TYPE) + // Overload of operator / for vector division + template + LIBDIVIDE_VECTOR_TYPE operator/(LIBDIVIDE_VECTOR_TYPE n, const divider& div) { + return div.divide(n); + } + // Overload of operator /= for vector division + template + LIBDIVIDE_VECTOR_TYPE& operator/=(LIBDIVIDE_VECTOR_TYPE& n, const divider& div) { + n = div.divide(n); + return n; + } +#endif + +// libdivdie::branchfree_divider +template +using branchfree_divider = divider; + +} // namespace libdivide + +#endif // __cplusplus + +#endif // NUMPY_CORE_INCLUDE_NUMPY_LIBDIVIDE_LIBDIVIDE_H_ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/ufuncobject.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/ufuncobject.h new file mode 100644 index 0000000000000000000000000000000000000000..f5f82b57c91feb7c1b90324907e38c684725ab4a --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/ufuncobject.h @@ -0,0 +1,343 @@ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_UFUNCOBJECT_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_UFUNCOBJECT_H_ + +#include +#include + +#ifdef __cplusplus +extern "C" { +#endif + +/* + * The legacy generic inner loop for a standard element-wise or + * generalized ufunc. + */ +typedef void (*PyUFuncGenericFunction) + (char **args, + npy_intp const *dimensions, + npy_intp const *strides, + void *innerloopdata); + +/* + * The most generic one-dimensional inner loop for + * a masked standard element-wise ufunc. "Masked" here means that it skips + * doing calculations on any items for which the maskptr array has a true + * value. + */ +typedef void (PyUFunc_MaskedStridedInnerLoopFunc)( + char **dataptrs, npy_intp *strides, + char *maskptr, npy_intp mask_stride, + npy_intp count, + NpyAuxData *innerloopdata); + +/* Forward declaration for the type resolver and loop selector typedefs */ +struct _tagPyUFuncObject; + +/* + * Given the operands for calling a ufunc, should determine the + * calculation input and output data types and return an inner loop function. + * This function should validate that the casting rule is being followed, + * and fail if it is not. + * + * For backwards compatibility, the regular type resolution function does not + * support auxiliary data with object semantics. The type resolution call + * which returns a masked generic function returns a standard NpyAuxData + * object, for which the NPY_AUXDATA_FREE and NPY_AUXDATA_CLONE macros + * work. + * + * ufunc: The ufunc object. + * casting: The 'casting' parameter provided to the ufunc. + * operands: An array of length (ufunc->nin + ufunc->nout), + * with the output parameters possibly NULL. + * type_tup: Either NULL, or the type_tup passed to the ufunc. + * out_dtypes: An array which should be populated with new + * references to (ufunc->nin + ufunc->nout) new + * dtypes, one for each input and output. These + * dtypes should all be in native-endian format. + * + * Should return 0 on success, -1 on failure (with exception set), + * or -2 if Py_NotImplemented should be returned. + */ +typedef int (PyUFunc_TypeResolutionFunc)( + struct _tagPyUFuncObject *ufunc, + NPY_CASTING casting, + PyArrayObject **operands, + PyObject *type_tup, + PyArray_Descr **out_dtypes); + +/* + * This is the signature for the functions that may be assigned to the + * `process_core_dims_func` field of the PyUFuncObject structure. + * Implementation of this function is optional. This function is only used + * by generalized ufuncs (i.e. those with the field `core_enabled` set to 1). + * The function is called by the ufunc during the processing of the arguments + * of a call of the ufunc. The function can check the core dimensions of the + * input and output arrays and return -1 with an exception set if any + * requirements are not satisfied. If the caller of the ufunc didn't provide + * output arrays, the core dimensions associated with the output arrays (i.e. + * those that are not also used in input arrays) will have the value -1 in + * `core_dim_sizes`. This function can replace any output core dimensions + * that are -1 with a value that is appropriate for the ufunc. + * + * Parameter Description + * --------------- ------------------------------------------------------ + * ufunc The ufunc object + * core_dim_sizes An array with length `ufunc->core_num_dim_ix`. + * The core dimensions of the arrays passed to the ufunc + * will have been set. If the caller of the ufunc didn't + * provide the output array(s), the output-only core + * dimensions will have the value -1. + * + * The function must not change any element in `core_dim_sizes` that is + * not -1 on input. Doing so will result in incorrect output from the + * ufunc, and could result in a crash of the Python interpreter. + * + * The function must return 0 on success, -1 on failure (with an exception + * set). + */ +typedef int (PyUFunc_ProcessCoreDimsFunc)( + struct _tagPyUFuncObject *ufunc, + npy_intp *core_dim_sizes); + +typedef struct _tagPyUFuncObject { + PyObject_HEAD + /* + * nin: Number of inputs + * nout: Number of outputs + * nargs: Always nin + nout (Why is it stored?) + */ + int nin, nout, nargs; + + /* + * Identity for reduction, any of PyUFunc_One, PyUFunc_Zero + * PyUFunc_MinusOne, PyUFunc_None, PyUFunc_ReorderableNone, + * PyUFunc_IdentityValue. + */ + int identity; + + /* Array of one-dimensional core loops */ + PyUFuncGenericFunction *functions; + /* Array of funcdata that gets passed into the functions */ + void *const *data; + /* The number of elements in 'functions' and 'data' */ + int ntypes; + + /* Used to be unused field 'check_return' */ + int reserved1; + + /* The name of the ufunc */ + const char *name; + + /* Array of type numbers, of size ('nargs' * 'ntypes') */ + const char *types; + + /* Documentation string */ + const char *doc; + + void *ptr; + PyObject *obj; + PyObject *userloops; + + /* generalized ufunc parameters */ + + /* 0 for scalar ufunc; 1 for generalized ufunc */ + int core_enabled; + /* number of distinct dimension names in signature */ + int core_num_dim_ix; + + /* + * dimension indices of input/output argument k are stored in + * core_dim_ixs[core_offsets[k]..core_offsets[k]+core_num_dims[k]-1] + */ + + /* numbers of core dimensions of each argument */ + int *core_num_dims; + /* + * dimension indices in a flatted form; indices + * are in the range of [0,core_num_dim_ix) + */ + int *core_dim_ixs; + /* + * positions of 1st core dimensions of each + * argument in core_dim_ixs, equivalent to cumsum(core_num_dims) + */ + int *core_offsets; + /* signature string for printing purpose */ + char *core_signature; + + /* + * A function which resolves the types and fills an array + * with the dtypes for the inputs and outputs. + */ + PyUFunc_TypeResolutionFunc *type_resolver; + + /* A dictionary to monkeypatch ufuncs */ + PyObject *dict; + + /* + * This was blocked off to be the "new" inner loop selector in 1.7, + * but this was never implemented. (This is also why the above + * selector is called the "legacy" selector.) + */ + #ifndef Py_LIMITED_API + vectorcallfunc vectorcall; + #else + void *vectorcall; + #endif + + /* Was previously the `PyUFunc_MaskedInnerLoopSelectionFunc` */ + void *reserved3; + + /* + * List of flags for each operand when ufunc is called by nditer object. + * These flags will be used in addition to the default flags for each + * operand set by nditer object. + */ + npy_uint32 *op_flags; + + /* + * List of global flags used when ufunc is called by nditer object. + * These flags will be used in addition to the default global flags + * set by nditer object. + */ + npy_uint32 iter_flags; + + /* New in NPY_API_VERSION 0x0000000D and above */ + #if NPY_FEATURE_VERSION >= NPY_1_16_API_VERSION + /* + * for each core_num_dim_ix distinct dimension names, + * the possible "frozen" size (-1 if not frozen). + */ + npy_intp *core_dim_sizes; + + /* + * for each distinct core dimension, a set of UFUNC_CORE_DIM* flags + */ + npy_uint32 *core_dim_flags; + + /* Identity for reduction, when identity == PyUFunc_IdentityValue */ + PyObject *identity_value; + #endif /* NPY_FEATURE_VERSION >= NPY_1_16_API_VERSION */ + + /* New in NPY_API_VERSION 0x0000000F and above */ + #if NPY_FEATURE_VERSION >= NPY_1_22_API_VERSION + /* New private fields related to dispatching */ + void *_dispatch_cache; + /* A PyListObject of `(tuple of DTypes, ArrayMethod/Promoter)` */ + PyObject *_loops; + #endif + #if NPY_FEATURE_VERSION >= NPY_2_1_API_VERSION + /* + * Optional function to process core dimensions of a gufunc. + */ + PyUFunc_ProcessCoreDimsFunc *process_core_dims_func; + #endif +} PyUFuncObject; + +#include "arrayobject.h" +/* Generalized ufunc; 0x0001 reserved for possible use as CORE_ENABLED */ +/* the core dimension's size will be determined by the operands. */ +#define UFUNC_CORE_DIM_SIZE_INFERRED 0x0002 +/* the core dimension may be absent */ +#define UFUNC_CORE_DIM_CAN_IGNORE 0x0004 +/* flags inferred during execution */ +#define UFUNC_CORE_DIM_MISSING 0x00040000 + + +#define UFUNC_OBJ_ISOBJECT 1 +#define UFUNC_OBJ_NEEDS_API 2 + + +#if NPY_ALLOW_THREADS +#define NPY_LOOP_BEGIN_THREADS do {if (!(loop->obj & UFUNC_OBJ_NEEDS_API)) _save = PyEval_SaveThread();} while (0); +#define NPY_LOOP_END_THREADS do {if (!(loop->obj & UFUNC_OBJ_NEEDS_API)) PyEval_RestoreThread(_save);} while (0); +#else +#define NPY_LOOP_BEGIN_THREADS +#define NPY_LOOP_END_THREADS +#endif + +/* + * UFunc has unit of 0, and the order of operations can be reordered + * This case allows reduction with multiple axes at once. + */ +#define PyUFunc_Zero 0 +/* + * UFunc has unit of 1, and the order of operations can be reordered + * This case allows reduction with multiple axes at once. + */ +#define PyUFunc_One 1 +/* + * UFunc has unit of -1, and the order of operations can be reordered + * This case allows reduction with multiple axes at once. Intended for + * bitwise_and reduction. + */ +#define PyUFunc_MinusOne 2 +/* + * UFunc has no unit, and the order of operations cannot be reordered. + * This case does not allow reduction with multiple axes at once. + */ +#define PyUFunc_None -1 +/* + * UFunc has no unit, and the order of operations can be reordered + * This case allows reduction with multiple axes at once. + */ +#define PyUFunc_ReorderableNone -2 +/* + * UFunc unit is an identity_value, and the order of operations can be reordered + * This case allows reduction with multiple axes at once. + */ +#define PyUFunc_IdentityValue -3 + + +#define UFUNC_REDUCE 0 +#define UFUNC_ACCUMULATE 1 +#define UFUNC_REDUCEAT 2 +#define UFUNC_OUTER 3 + + +typedef struct { + int nin; + int nout; + PyObject *callable; +} PyUFunc_PyFuncData; + +/* A linked-list of function information for + user-defined 1-d loops. + */ +typedef struct _loop1d_info { + PyUFuncGenericFunction func; + void *data; + int *arg_types; + struct _loop1d_info *next; + int nargs; + PyArray_Descr **arg_dtypes; +} PyUFunc_Loop1d; + + +#define UFUNC_PYVALS_NAME "UFUNC_PYVALS" + +/* THESE MACROS ARE DEPRECATED. + * Use npy_set_floatstatus_* in the npymath library. + */ +#define UFUNC_FPE_DIVIDEBYZERO NPY_FPE_DIVIDEBYZERO +#define UFUNC_FPE_OVERFLOW NPY_FPE_OVERFLOW +#define UFUNC_FPE_UNDERFLOW NPY_FPE_UNDERFLOW +#define UFUNC_FPE_INVALID NPY_FPE_INVALID + +/* Make sure it gets defined if it isn't already */ +#ifndef UFUNC_NOFPE +/* Clear the floating point exception default of Borland C++ */ +#if defined(__BORLANDC__) +#define UFUNC_NOFPE _control87(MCW_EM, MCW_EM); +#else +#define UFUNC_NOFPE +#endif +#endif + +#include "__ufunc_api.h" + +#ifdef __cplusplus +} +#endif + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_UFUNCOBJECT_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/utils.h b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/utils.h new file mode 100644 index 0000000000000000000000000000000000000000..97f06092e54050baf3c2fc4372429cbd110429e8 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/include/numpy/utils.h @@ -0,0 +1,37 @@ +#ifndef NUMPY_CORE_INCLUDE_NUMPY_UTILS_H_ +#define NUMPY_CORE_INCLUDE_NUMPY_UTILS_H_ + +#ifndef __COMP_NPY_UNUSED + #if defined(__GNUC__) + #define __COMP_NPY_UNUSED __attribute__ ((__unused__)) + #elif defined(__ICC) + #define __COMP_NPY_UNUSED __attribute__ ((__unused__)) + #elif defined(__clang__) + #define __COMP_NPY_UNUSED __attribute__ ((unused)) + #else + #define __COMP_NPY_UNUSED + #endif +#endif + +#if defined(__GNUC__) || defined(__ICC) || defined(__clang__) + #define NPY_DECL_ALIGNED(x) __attribute__ ((aligned (x))) +#elif defined(_MSC_VER) + #define NPY_DECL_ALIGNED(x) __declspec(align(x)) +#else + #define NPY_DECL_ALIGNED(x) +#endif + +/* Use this to tag a variable as not used. It will remove unused variable + * warning on support platforms (see __COM_NPY_UNUSED) and mangle the variable + * to avoid accidental use */ +#define NPY_UNUSED(x) __NPY_UNUSED_TAGGED ## x __COMP_NPY_UNUSED +#define NPY_EXPAND(x) x + +#define NPY_STRINGIFY(x) #x +#define NPY_TOSTRING(x) NPY_STRINGIFY(x) + +#define NPY_CAT__(a, b) a ## b +#define NPY_CAT_(a, b) NPY_CAT__(a, b) +#define NPY_CAT(a, b) NPY_CAT_(a, b) + +#endif /* NUMPY_CORE_INCLUDE_NUMPY_UTILS_H_ */ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/._libnpymath.a b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/._libnpymath.a new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/._libnpymath.a differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/._npy-pkg-config 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a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/npy-pkg-config/mlib.ini b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/npy-pkg-config/mlib.ini new file mode 100644 index 0000000000000000000000000000000000000000..5840f5e1bc167f50ebc9fc98d60b60ee21ecbeec --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/npy-pkg-config/mlib.ini @@ -0,0 +1,12 @@ +[meta] +Name = mlib +Description = Math library used with this version of numpy +Version = 1.0 + +[default] +Libs=-lm +Cflags= + +[msvc] +Libs=m.lib +Cflags= diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/npy-pkg-config/npymath.ini b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/npy-pkg-config/npymath.ini new file mode 100644 index 0000000000000000000000000000000000000000..8d879e3fb772ef04afe28bf6670a5d233acfe710 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/npy-pkg-config/npymath.ini @@ -0,0 +1,20 @@ +[meta] +Name=npymath +Description=Portable, core math library implementing C99 standard +Version=0.1 + +[variables] +pkgname=numpy._core +prefix=${pkgdir} +libdir=${prefix}/lib +includedir=${prefix}/include + +[default] +Libs=-L${libdir} -lnpymath +Cflags=-I${includedir} +Requires=mlib + +[msvc] +Libs=/LIBPATH:${libdir} npymath.lib +Cflags=/INCLUDE:${includedir} +Requires=mlib diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/pkgconfig/._numpy.pc b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/pkgconfig/._numpy.pc new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/pkgconfig/._numpy.pc differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/pkgconfig/numpy.pc b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/pkgconfig/numpy.pc new file mode 100644 index 0000000000000000000000000000000000000000..9705dd1d5752beaba891ab50a01602595acce793 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/lib/pkgconfig/numpy.pc @@ -0,0 +1,7 @@ +prefix=${pcfiledir}/../.. +includedir=${prefix}/include + +Name: numpy +Description: NumPy is the fundamental package for scientific computing with Python. +Version: 2.4.4 +Cflags: -I${includedir} diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/memmap.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/memmap.py new file mode 100644 index 0000000000000000000000000000000000000000..8cfa7f94a8da4318cae87ae895a8eec1435add70 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/memmap.py @@ -0,0 +1,363 @@ +import operator +from contextlib import nullcontext + +import numpy as np +from numpy._utils import set_module + +from .numeric import dtype, ndarray, uint8 + +__all__ = ['memmap'] + +dtypedescr = dtype +valid_filemodes = ["r", "c", "r+", "w+"] +writeable_filemodes = ["r+", "w+"] + +mode_equivalents = { + "readonly": "r", + "copyonwrite": "c", + "readwrite": "r+", + "write": "w+" + } + + +@set_module('numpy') +class memmap(ndarray): + """Create a memory-map to an array stored in a *binary* file on disk. + + Memory-mapped files are used for accessing small segments of large files + on disk, without reading the entire file into memory. NumPy's + memmap's are array-like objects. This differs from Python's ``mmap`` + module, which uses file-like objects. + + This subclass of ndarray has some unpleasant interactions with + some operations, because it doesn't quite fit properly as a subclass. + An alternative to using this subclass is to create the ``mmap`` + object yourself, then create an ndarray with ndarray.__new__ directly, + passing the object created in its 'buffer=' parameter. + + This class may at some point be turned into a factory function + which returns a view into an mmap buffer. + + Flush the memmap instance to write the changes to the file. Currently there + is no API to close the underlying ``mmap``. It is tricky to ensure the + resource is actually closed, since it may be shared between different + memmap instances. + + + Parameters + ---------- + filename : str, file-like object, or pathlib.Path instance + The file name or file object to be used as the array data buffer. + dtype : data-type, optional + The data-type used to interpret the file contents. + Default is `uint8`. + mode : {'r+', 'r', 'w+', 'c'}, optional + The file is opened in this mode: + + +------+-------------------------------------------------------------+ + | 'r' | Open existing file for reading only. | + +------+-------------------------------------------------------------+ + | 'r+' | Open existing file for reading and writing. | + +------+-------------------------------------------------------------+ + | 'w+' | Create or overwrite existing file for reading and writing. | + | | If ``mode == 'w+'`` then `shape` must also be specified. | + +------+-------------------------------------------------------------+ + | 'c' | Copy-on-write: assignments affect data in memory, but | + | | changes are not saved to disk. The file on disk is | + | | read-only. | + +------+-------------------------------------------------------------+ + + Default is 'r+'. + offset : int, optional + In the file, array data starts at this offset. Since `offset` is + measured in bytes, it should normally be a multiple of the byte-size + of `dtype`. When ``mode != 'r'``, even positive offsets beyond end of + file are valid; The file will be extended to accommodate the + additional data. By default, ``memmap`` will start at the beginning of + the file, even if ``filename`` is a file pointer ``fp`` and + ``fp.tell() != 0``. + shape : int or sequence of ints, optional + The desired shape of the array. If ``mode == 'r'`` and the number + of remaining bytes after `offset` is not a multiple of the byte-size + of `dtype`, you must specify `shape`. By default, the returned array + will be 1-D with the number of elements determined by file size + and data-type. + + .. versionchanged:: 2.0 + The shape parameter can now be any integer sequence type, previously + types were limited to tuple and int. + + order : {'C', 'F'}, optional + Specify the order of the ndarray memory layout: + :term:`row-major`, C-style or :term:`column-major`, + Fortran-style. This only has an effect if the shape is + greater than 1-D. The default order is 'C'. + + Attributes + ---------- + filename : str or pathlib.Path instance + Path to the mapped file. + offset : int + Offset position in the file. + mode : str + File mode. + + Methods + ------- + flush + Flush any changes in memory to file on disk. + When you delete a memmap object, flush is called first to write + changes to disk. + + + See also + -------- + lib.format.open_memmap : Create or load a memory-mapped ``.npy`` file. + + Notes + ----- + The memmap object can be used anywhere an ndarray is accepted. + Given a memmap ``fp``, ``isinstance(fp, numpy.ndarray)`` returns + ``True``. + + Memory-mapped files cannot be larger than 2GB on 32-bit systems. + + When a memmap causes a file to be created or extended beyond its + current size in the filesystem, the contents of the new part are + unspecified. On systems with POSIX filesystem semantics, the extended + part will be filled with zero bytes. + + Examples + -------- + >>> import numpy as np + >>> data = np.arange(12, dtype='float32') + >>> data.resize((3,4)) + + This example uses a temporary file so that doctest doesn't write + files to your directory. You would use a 'normal' filename. + + >>> from tempfile import mkdtemp + >>> import os.path as path + >>> filename = path.join(mkdtemp(), 'newfile.dat') + + Create a memmap with dtype and shape that matches our data: + + >>> fp = np.memmap(filename, dtype='float32', mode='w+', shape=(3,4)) + >>> fp + memmap([[0., 0., 0., 0.], + [0., 0., 0., 0.], + [0., 0., 0., 0.]], dtype=float32) + + Write data to memmap array: + + >>> fp[:] = data[:] + >>> fp + memmap([[ 0., 1., 2., 3.], + [ 4., 5., 6., 7.], + [ 8., 9., 10., 11.]], dtype=float32) + + >>> fp.filename == path.abspath(filename) + True + + Flushes memory changes to disk in order to read them back + + >>> fp.flush() + + Load the memmap and verify data was stored: + + >>> newfp = np.memmap(filename, dtype='float32', mode='r', shape=(3,4)) + >>> newfp + memmap([[ 0., 1., 2., 3.], + [ 4., 5., 6., 7.], + [ 8., 9., 10., 11.]], dtype=float32) + + Read-only memmap: + + >>> fpr = np.memmap(filename, dtype='float32', mode='r', shape=(3,4)) + >>> fpr.flags.writeable + False + + Copy-on-write memmap: + + >>> fpc = np.memmap(filename, dtype='float32', mode='c', shape=(3,4)) + >>> fpc.flags.writeable + True + + It's possible to assign to copy-on-write array, but values are only + written into the memory copy of the array, and not written to disk: + + >>> fpc + memmap([[ 0., 1., 2., 3.], + [ 4., 5., 6., 7.], + [ 8., 9., 10., 11.]], dtype=float32) + >>> fpc[0,:] = 0 + >>> fpc + memmap([[ 0., 0., 0., 0.], + [ 4., 5., 6., 7.], + [ 8., 9., 10., 11.]], dtype=float32) + + File on disk is unchanged: + + >>> fpr + memmap([[ 0., 1., 2., 3.], + [ 4., 5., 6., 7.], + [ 8., 9., 10., 11.]], dtype=float32) + + Offset into a memmap: + + >>> fpo = np.memmap(filename, dtype='float32', mode='r', offset=16) + >>> fpo + memmap([ 4., 5., 6., 7., 8., 9., 10., 11.], dtype=float32) + + """ + + __array_priority__ = -100.0 + + def __new__(subtype, filename, dtype=uint8, mode='r+', offset=0, + shape=None, order='C'): + # Import here to minimize 'import numpy' overhead + import mmap + import os.path + try: + mode = mode_equivalents[mode] + except KeyError as e: + if mode not in valid_filemodes: + all_modes = valid_filemodes + list(mode_equivalents.keys()) + raise ValueError( + f"mode must be one of {all_modes!r} (got {mode!r})" + ) from None + + if mode == 'w+' and shape is None: + raise ValueError("shape must be given if mode == 'w+'") + + if hasattr(filename, 'read'): + f_ctx = nullcontext(filename) + else: + f_ctx = open( + os.fspath(filename), + ('r' if mode == 'c' else mode) + 'b' + ) + + with f_ctx as fid: + fid.seek(0, 2) + flen = fid.tell() + descr = dtypedescr(dtype) + _dbytes = descr.itemsize + + if shape is None: + bytes = flen - offset + if bytes % _dbytes: + raise ValueError("Size of available data is not a " + "multiple of the data-type size.") + size = bytes // _dbytes + shape = (size,) + else: + if not isinstance(shape, (tuple, list)): + try: + shape = [operator.index(shape)] + except TypeError: + pass + shape = tuple(shape) + size = np.intp(1) # avoid overflows + for k in shape: + size *= k + + bytes = int(offset + size * _dbytes) + + if mode in ('w+', 'r+'): + # gh-27723 + # if bytes == 0, we write out 1 byte to allow empty memmap. + bytes = max(bytes, 1) + if flen < bytes: + fid.seek(bytes - 1, 0) + fid.write(b'\0') + fid.flush() + + if mode == 'c': + acc = mmap.ACCESS_COPY + elif mode == 'r': + acc = mmap.ACCESS_READ + else: + acc = mmap.ACCESS_WRITE + + start = offset - offset % mmap.ALLOCATIONGRANULARITY + bytes -= start + # bytes == 0 is problematic as in mmap length=0 maps the full file. + # See PR gh-27723 for a more detailed explanation. + if bytes == 0 and start > 0: + bytes += mmap.ALLOCATIONGRANULARITY + start -= mmap.ALLOCATIONGRANULARITY + array_offset = offset - start + mm = mmap.mmap(fid.fileno(), bytes, access=acc, offset=start) + + self = ndarray.__new__(subtype, shape, dtype=descr, buffer=mm, + offset=array_offset, order=order) + self._mmap = mm + self.offset = offset + self.mode = mode + + if isinstance(filename, os.PathLike): + # special case - if we were constructed with a pathlib.path, + # then filename is a path object, not a string + self.filename = filename.resolve() + elif hasattr(fid, "name") and isinstance(fid.name, str): + # py3 returns int for TemporaryFile().name + self.filename = os.path.abspath(fid.name) + # same as memmap copies (e.g. memmap + 1) + else: + self.filename = None + + return self + + def __array_finalize__(self, obj): + if hasattr(obj, '_mmap') and np.may_share_memory(self, obj): + self._mmap = obj._mmap + self.filename = obj.filename + self.offset = obj.offset + self.mode = obj.mode + else: + self._mmap = None + self.filename = None + self.offset = None + self.mode = None + + def flush(self): + """ + Write any changes in the array to the file on disk. + + For further information, see `memmap`. + + Parameters + ---------- + None + + See Also + -------- + memmap + + """ + if self.base is not None and hasattr(self.base, 'flush'): + self.base.flush() + + def __array_wrap__(self, arr, context=None, return_scalar=False): + arr = super().__array_wrap__(arr, context) + + # Return a memmap if a memmap was given as the output of the + # ufunc. Leave the arr class unchanged if self is not a memmap + # to keep original memmap subclasses behavior + if self is arr or type(self) is not memmap: + return arr + + # Return scalar instead of 0d memmap, e.g. for np.sum with + # axis=None (note that subclasses will not reach here) + if return_scalar: + return arr[()] + + # Return ndarray otherwise + return arr.view(np.ndarray) + + def __getitem__(self, index): + res = super().__getitem__(index) + if type(res) is memmap and res._mmap is None: + return res.view(type=ndarray) + return res diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/memmap.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/memmap.pyi new file mode 100644 index 0000000000000000000000000000000000000000..0b31328404fb397614bd03832af9282ce251c4f4 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/memmap.pyi @@ -0,0 +1,3 @@ +from numpy import memmap + +__all__ = ["memmap"] diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/multiarray.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/multiarray.py new file mode 100644 index 0000000000000000000000000000000000000000..dd5a66a8785ffe7e04774da190eaa4427b491b79 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/multiarray.py @@ -0,0 +1,1740 @@ +""" +Create the numpy._core.multiarray namespace for backward compatibility. +In v1.16 the multiarray and umath c-extension modules were merged into +a single _multiarray_umath extension module. So we replicate the old +namespace by importing from the extension module. + +""" + +import functools + +from . import _multiarray_umath, overrides +from ._multiarray_umath import * # noqa: F403 + +# These imports are needed for backward compatibility, +# do not change them. issue gh-15518 +# _get_ndarray_c_version is semi-public, on purpose not added to __all__ +from ._multiarray_umath import ( # noqa: F401 + _ARRAY_API, + _flagdict, + _get_madvise_hugepage, + _get_ndarray_c_version, + _monotonicity, + _place, + _reconstruct, + _set_madvise_hugepage, + _vec_string, + from_dlpack, +) + +__all__ = [ + '_ARRAY_API', 'ALLOW_THREADS', 'BUFSIZE', 'CLIP', 'DATETIMEUNITS', + 'ITEM_HASOBJECT', 'ITEM_IS_POINTER', 'LIST_PICKLE', 'MAXDIMS', + 'MAY_SHARE_BOUNDS', 'MAY_SHARE_EXACT', 'NEEDS_INIT', 'NEEDS_PYAPI', + 'RAISE', 'USE_GETITEM', 'USE_SETITEM', 'WRAP', + '_flagdict', 'from_dlpack', '_place', '_reconstruct', '_vec_string', + '_monotonicity', 'add_docstring', 'arange', 'array', 'asarray', + 'asanyarray', 'ascontiguousarray', 'asfortranarray', 'bincount', + 'broadcast', 'busday_count', 'busday_offset', 'busdaycalendar', 'can_cast', + 'compare_chararrays', 'concatenate', 'copyto', 'correlate', 'correlate2', + 'count_nonzero', 'c_einsum', 'datetime_as_string', 'datetime_data', + 'dot', 'dragon4_positional', 'dragon4_scientific', 'dtype', + 'empty', 'empty_like', 'error', 'flagsobj', 'flatiter', 'format_longfloat', + 'frombuffer', 'fromfile', 'fromiter', 'fromstring', + 'get_handler_name', 'get_handler_version', 'inner', 'interp', + 'interp_complex', 'is_busday', 'lexsort', 'matmul', 'vecdot', + 'may_share_memory', 'min_scalar_type', 'ndarray', 'nditer', 'nested_iters', + 'normalize_axis_index', 'packbits', 'promote_types', 'putmask', + 'ravel_multi_index', 'result_type', 'scalar', 'set_datetimeparse_function', + 'set_typeDict', 'shares_memory', 'typeinfo', + 'unpackbits', 'unravel_index', 'vdot', 'where', 'zeros'] + +# For backward compatibility, make sure pickle imports +# these functions from here +_reconstruct.__module__ = 'numpy._core.multiarray' +scalar.__module__ = 'numpy._core.multiarray' + + +from_dlpack.__module__ = 'numpy' +arange.__module__ = 'numpy' +array.__module__ = 'numpy' +asarray.__module__ = 'numpy' +asanyarray.__module__ = 'numpy' +ascontiguousarray.__module__ = 'numpy' +asfortranarray.__module__ = 'numpy' +datetime_data.__module__ = 'numpy' +empty.__module__ = 'numpy' +frombuffer.__module__ = 'numpy' +fromfile.__module__ = 'numpy' +fromiter.__module__ = 'numpy' +frompyfunc.__module__ = 'numpy' +fromstring.__module__ = 'numpy' +may_share_memory.__module__ = 'numpy' +nested_iters.__module__ = 'numpy' +promote_types.__module__ = 'numpy' +zeros.__module__ = 'numpy' +normalize_axis_index.__module__ = 'numpy.lib.array_utils' +add_docstring.__module__ = 'numpy.lib' +compare_chararrays.__module__ = 'numpy.char' + + +def _override___module__(): + namespace_names = globals() + for ufunc_name in [ + 'absolute', 'arccos', 'arccosh', 'add', 'arcsin', 'arcsinh', 'arctan', + 'arctan2', 'arctanh', 'bitwise_and', 'bitwise_count', 'invert', + 'left_shift', 'bitwise_or', 'right_shift', 'bitwise_xor', 'cbrt', + 'ceil', 'conjugate', 'copysign', 'cos', 'cosh', 'deg2rad', 'degrees', + 'divide', 'divmod', 'equal', 'exp', 'exp2', 'expm1', 'fabs', + 'float_power', 'floor', 'floor_divide', 'fmax', 'fmin', 'fmod', + 'frexp', 'gcd', 'greater', 'greater_equal', 'heaviside', 'hypot', + 'isfinite', 'isinf', 'isnan', 'isnat', 'lcm', 'ldexp', 'less', + 'less_equal', 'log', 'log10', 'log1p', 'log2', 'logaddexp', + 'logaddexp2', 'logical_and', 'logical_not', 'logical_or', + 'logical_xor', 'matmul', 'matvec', 'maximum', 'minimum', 'remainder', + 'modf', 'multiply', 'negative', 'nextafter', 'not_equal', 'positive', + 'power', 'rad2deg', 'radians', 'reciprocal', 'rint', 'sign', 'signbit', + 'sin', 'sinh', 'spacing', 'sqrt', 'square', 'subtract', 'tan', 'tanh', + 'trunc', 'vecdot', 'vecmat', + ]: + ufunc = namespace_names[ufunc_name] + ufunc.__module__ = "numpy" + ufunc.__qualname__ = ufunc_name + + +_override___module__() + + +# We can't verify dispatcher signatures because NumPy's C functions don't +# support introspection. +array_function_from_c_func_and_dispatcher = functools.partial( + overrides.array_function_from_dispatcher, + module='numpy', docs_from_dispatcher=True, verify=False) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.empty_like) +def empty_like( + prototype, dtype=None, order="K", subok=True, shape=None, *, device=None +): + """ + empty_like( + prototype, + /, + dtype=None, + order='K', + subok=True, + shape=None, + *, + device=None, + ) + -- + + Return a new array with the same shape and type as a given array. + + Parameters + ---------- + prototype : array_like + The shape and data-type of `prototype` define these same attributes + of the returned array. + dtype : data-type, optional + Overrides the data type of the result. + order : {'C', 'F', 'A', or 'K'}, optional + Overrides the memory layout of the result. 'C' means C-order, + 'F' means F-order, 'A' means 'F' if `prototype` is Fortran + contiguous, 'C' otherwise. 'K' means match the layout of `prototype` + as closely as possible. + subok : bool, optional. + If True, then the newly created array will use the sub-class + type of `prototype`, otherwise it will be a base-class array. Defaults + to True. + shape : int or sequence of ints, optional. + Overrides the shape of the result. If order='K' and the number of + dimensions is unchanged, will try to keep order, otherwise, + order='C' is implied. + device : str, optional + The device on which to place the created array. Default: None. + For Array-API interoperability only, so must be ``"cpu"`` if passed. + + .. versionadded:: 2.0.0 + + Returns + ------- + out : ndarray + Array of uninitialized (arbitrary) data with the same + shape and type as `prototype`. + + See Also + -------- + ones_like : Return an array of ones with shape and type of input. + zeros_like : Return an array of zeros with shape and type of input. + full_like : Return a new array with shape of input filled with value. + empty : Return a new uninitialized array. + + Notes + ----- + Unlike other array creation functions (e.g. `zeros_like`, `ones_like`, + `full_like`), `empty_like` does not initialize the values of the array, + and may therefore be marginally faster. However, the values stored in the + newly allocated array are arbitrary. For reproducible behavior, be sure + to set each element of the array before reading. + + Examples + -------- + >>> import numpy as np + >>> a = ([1,2,3], [4,5,6]) # a is array-like + >>> np.empty_like(a) + array([[-1073741821, -1073741821, 3], # uninitialized + [ 0, 0, -1073741821]]) + >>> a = np.array([[1., 2., 3.],[4.,5.,6.]]) + >>> np.empty_like(a) + array([[ -2.00000715e+000, 1.48219694e-323, -2.00000572e+000], # uninitialized + [ 4.38791518e-305, -2.00000715e+000, 4.17269252e-309]]) + + """ + return (prototype,) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.concatenate) +def concatenate(arrays, axis=0, out=None, *, dtype=None, casting="same_kind"): + """ + concatenate( + arrays, + /, + axis=0, + out=None, + *, + dtype=None, + casting="same_kind", + ) + -- + + Join a sequence of arrays along an existing axis. + + Parameters + ---------- + a1, a2, ... : sequence of array_like + The arrays must have the same shape, except in the dimension + corresponding to `axis` (the first, by default). + axis : int, optional + The axis along which the arrays will be joined. If axis is None, + arrays are flattened before use. Default is 0. + out : ndarray, optional + If provided, the destination to place the result. The shape must be + correct, matching that of what concatenate would have returned if no + out argument were specified. + dtype : str or dtype + If provided, the destination array will have this dtype. Cannot be + provided together with `out`. + + .. versionadded:: 1.20.0 + + casting : {'no', 'equiv', 'safe', 'same_kind', 'unsafe'}, optional + Controls what kind of data casting may occur. Defaults to 'same_kind'. + For a description of the options, please see :term:`casting`. + + .. versionadded:: 1.20.0 + + Returns + ------- + res : ndarray + The concatenated array. + + See Also + -------- + ma.concatenate : Concatenate function that preserves input masks. + array_split : Split an array into multiple sub-arrays of equal or + near-equal size. + split : Split array into a list of multiple sub-arrays of equal size. + hsplit : Split array into multiple sub-arrays horizontally (column wise). + vsplit : Split array into multiple sub-arrays vertically (row wise). + dsplit : Split array into multiple sub-arrays along the 3rd axis (depth). + stack : Stack a sequence of arrays along a new axis. + block : Assemble arrays from blocks. + hstack : Stack arrays in sequence horizontally (column wise). + vstack : Stack arrays in sequence vertically (row wise). + dstack : Stack arrays in sequence depth wise (along third dimension). + column_stack : Stack 1-D arrays as columns into a 2-D array. + + Notes + ----- + When one or more of the arrays to be concatenated is a MaskedArray, + this function will return a MaskedArray object instead of an ndarray, + but the input masks are *not* preserved. In cases where a MaskedArray + is expected as input, use the ma.concatenate function from the masked + array module instead. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[1, 2], [3, 4]]) + >>> b = np.array([[5, 6]]) + >>> np.concatenate((a, b), axis=0) + array([[1, 2], + [3, 4], + [5, 6]]) + >>> np.concatenate((a, b.T), axis=1) + array([[1, 2, 5], + [3, 4, 6]]) + >>> np.concatenate((a, b), axis=None) + array([1, 2, 3, 4, 5, 6]) + + This function will not preserve masking of MaskedArray inputs. + + >>> a = np.ma.arange(3) + >>> a[1] = np.ma.masked + >>> b = np.arange(2, 5) + >>> a + masked_array(data=[0, --, 2], + mask=[False, True, False], + fill_value=999999) + >>> b + array([2, 3, 4]) + >>> np.concatenate([a, b]) + masked_array(data=[0, 1, 2, 2, 3, 4], + mask=False, + fill_value=999999) + >>> np.ma.concatenate([a, b]) + masked_array(data=[0, --, 2, 2, 3, 4], + mask=[False, True, False, False, False, False], + fill_value=999999) + + """ + if out is not None: + # optimize for the typical case where only arrays is provided + arrays = list(arrays) + arrays.append(out) + return arrays + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.inner) +def inner(a, b, /): + """ + inner(a, b, /) + + Inner product of two arrays. + + Ordinary inner product of vectors for 1-D arrays (without complex + conjugation), in higher dimensions a sum product over the last axes. + + Parameters + ---------- + a, b : array_like + If `a` and `b` are nonscalar, their last dimensions must match. + + Returns + ------- + out : ndarray + If `a` and `b` are both + scalars or both 1-D arrays then a scalar is returned; otherwise + an array is returned. + ``out.shape = (*a.shape[:-1], *b.shape[:-1])`` + + Raises + ------ + ValueError + If both `a` and `b` are nonscalar and their last dimensions have + different sizes. + + See Also + -------- + tensordot : Sum products over arbitrary axes. + dot : Generalised matrix product, using second last dimension of `b`. + vecdot : Vector dot product of two arrays. + einsum : Einstein summation convention. + + Notes + ----- + For vectors (1-D arrays) it computes the ordinary inner-product:: + + np.inner(a, b) = sum(a[:]*b[:]) + + More generally, if ``ndim(a) = r > 0`` and ``ndim(b) = s > 0``:: + + np.inner(a, b) = np.tensordot(a, b, axes=(-1,-1)) + + or explicitly:: + + np.inner(a, b)[i0,...,ir-2,j0,...,js-2] + = sum(a[i0,...,ir-2,:]*b[j0,...,js-2,:]) + + In addition `a` or `b` may be scalars, in which case:: + + np.inner(a,b) = a*b + + Examples + -------- + Ordinary inner product for vectors: + + >>> import numpy as np + >>> a = np.array([1,2,3]) + >>> b = np.array([0,1,0]) + >>> np.inner(a, b) + 2 + + Some multidimensional examples: + + >>> a = np.arange(24).reshape((2,3,4)) + >>> b = np.arange(4) + >>> c = np.inner(a, b) + >>> c.shape + (2, 3) + >>> c + array([[ 14, 38, 62], + [ 86, 110, 134]]) + + >>> a = np.arange(2).reshape((1,1,2)) + >>> b = np.arange(6).reshape((3,2)) + >>> c = np.inner(a, b) + >>> c.shape + (1, 1, 3) + >>> c + array([[[1, 3, 5]]]) + + An example where `b` is a scalar: + + >>> np.inner(np.eye(2), 7) + array([[7., 0.], + [0., 7.]]) + + """ + return (a, b) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.where) +def where(condition, x=None, y=None, /): + """ + where(condition, [x, y], /) + + Return elements chosen from `x` or `y` depending on `condition`. + + .. note:: + When only `condition` is provided, this function is a shorthand for + ``np.asarray(condition).nonzero()``. Using `nonzero` directly should be + preferred, as it behaves correctly for subclasses. The rest of this + documentation covers only the case where all three arguments are + provided. + + Parameters + ---------- + condition : array_like, bool + Where True, yield `x`, otherwise yield `y`. + x, y : array_like + Values from which to choose. `x`, `y` and `condition` need to be + broadcastable to some shape. + + Returns + ------- + out : ndarray + An array with elements from `x` where `condition` is True, and elements + from `y` elsewhere. + + See Also + -------- + choose + nonzero : The function that is called when x and y are omitted + + Notes + ----- + If all the arrays are 1-D, `where` is equivalent to:: + + [xv if c else yv + for c, xv, yv in zip(condition, x, y)] + + Examples + -------- + >>> import numpy as np + >>> a = np.arange(10) + >>> a + array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]) + >>> np.where(a < 5, a, 10*a) + array([ 0, 1, 2, 3, 4, 50, 60, 70, 80, 90]) + + This can be used on multidimensional arrays too: + + >>> np.where([[True, False], [True, True]], + ... [[1, 2], [3, 4]], + ... [[9, 8], [7, 6]]) + array([[1, 8], + [3, 4]]) + + The shapes of x, y, and the condition are broadcast together: + + >>> x, y = np.ogrid[:3, :4] + >>> np.where(x < y, x, 10 + y) # both x and 10+y are broadcast + array([[10, 0, 0, 0], + [10, 11, 1, 1], + [10, 11, 12, 2]]) + + >>> a = np.array([[0, 1, 2], + ... [0, 2, 4], + ... [0, 3, 6]]) + >>> np.where(a < 4, a, -1) # -1 is broadcast + array([[ 0, 1, 2], + [ 0, 2, -1], + [ 0, 3, -1]]) + """ + return (condition, x, y) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.lexsort) +def lexsort(keys, axis=-1): + """ + lexsort(keys, axis=-1) + + Perform an indirect stable sort using a sequence of keys. + + Given multiple sorting keys, lexsort returns an array of integer indices + that describes the sort order by multiple keys. The last key in the + sequence is used for the primary sort order, ties are broken by the + second-to-last key, and so on. + + Parameters + ---------- + keys : (k, m, n, ...) array-like + The `k` keys to be sorted. The *last* key (e.g, the last + row if `keys` is a 2D array) is the primary sort key. + Each element of `keys` along the zeroth axis must be + an array-like object of the same shape. + axis : int, optional + Axis to be indirectly sorted. By default, sort over the last axis + of each sequence. Separate slices along `axis` sorted over + independently; see last example. + + Returns + ------- + indices : (m, n, ...) ndarray of ints + Array of indices that sort the keys along the specified axis. + + See Also + -------- + argsort : Indirect sort. + ndarray.sort : In-place sort. + sort : Return a sorted copy of an array. + + Examples + -------- + Sort names: first by surname, then by name. + + >>> import numpy as np + >>> surnames = ('Hertz', 'Galilei', 'Hertz') + >>> first_names = ('Heinrich', 'Galileo', 'Gustav') + >>> ind = np.lexsort((first_names, surnames)) + >>> ind + array([1, 2, 0]) + + >>> [surnames[i] + ", " + first_names[i] for i in ind] + ['Galilei, Galileo', 'Hertz, Gustav', 'Hertz, Heinrich'] + + Sort according to two numerical keys, first by elements + of ``a``, then breaking ties according to elements of ``b``: + + >>> a = [1, 5, 1, 4, 3, 4, 4] # First sequence + >>> b = [9, 4, 0, 4, 0, 2, 1] # Second sequence + >>> ind = np.lexsort((b, a)) # Sort by `a`, then by `b` + >>> ind + array([2, 0, 4, 6, 5, 3, 1]) + >>> [(a[i], b[i]) for i in ind] + [(1, 0), (1, 9), (3, 0), (4, 1), (4, 2), (4, 4), (5, 4)] + + Compare against `argsort`, which would sort each key independently. + + >>> np.argsort((b, a), kind='stable') + array([[2, 4, 6, 5, 1, 3, 0], + [0, 2, 4, 3, 5, 6, 1]]) + + To sort lexicographically with `argsort`, we would need to provide a + structured array. + + >>> x = np.array([(ai, bi) for ai, bi in zip(a, b)], + ... dtype = np.dtype([('x', int), ('y', int)])) + >>> np.argsort(x) # or np.argsort(x, order=('x', 'y')) + array([2, 0, 4, 6, 5, 3, 1]) + + The zeroth axis of `keys` always corresponds with the sequence of keys, + so 2D arrays are treated just like other sequences of keys. + + >>> arr = np.asarray([b, a]) + >>> ind2 = np.lexsort(arr) + >>> np.testing.assert_equal(ind2, ind) + + Accordingly, the `axis` parameter refers to an axis of *each* key, not of + the `keys` argument itself. For instance, the array ``arr`` is treated as + a sequence of two 1-D keys, so specifying ``axis=0`` is equivalent to + using the default axis, ``axis=-1``. + + >>> np.testing.assert_equal(np.lexsort(arr, axis=0), + ... np.lexsort(arr, axis=-1)) + + For higher-dimensional arrays, the axis parameter begins to matter. The + resulting array has the same shape as each key, and the values are what + we would expect if `lexsort` were performed on corresponding slices + of the keys independently. For instance, + + >>> x = [[1, 2, 3, 4], + ... [4, 3, 2, 1], + ... [2, 1, 4, 3]] + >>> y = [[2, 2, 1, 1], + ... [1, 2, 1, 2], + ... [1, 1, 2, 1]] + >>> np.lexsort((x, y), axis=1) + array([[2, 3, 0, 1], + [2, 0, 3, 1], + [1, 0, 3, 2]]) + + Each row of the result is what we would expect if we were to perform + `lexsort` on the corresponding row of the keys: + + >>> for i in range(3): + ... print(np.lexsort((x[i], y[i]))) + [2 3 0 1] + [2 0 3 1] + [1 0 3 2] + + """ + if isinstance(keys, tuple): + return keys + else: + return (keys,) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.can_cast) +def can_cast(from_, to, casting="safe"): + """ + can_cast(from_, to, casting='safe') + + Returns True if cast between data types can occur according to the + casting rule. + + Parameters + ---------- + from_ : dtype, dtype specifier, NumPy scalar, or array + Data type, NumPy scalar, or array to cast from. + to : dtype or dtype specifier + Data type to cast to. + casting : {'no', 'equiv', 'safe', 'same_kind', 'unsafe'}, optional + Controls what kind of data casting may occur. + + * 'no' means the data types should not be cast at all. + * 'equiv' means only byte-order changes are allowed. + * 'safe' means only casts which can preserve values are allowed. + * 'same_kind' means only safe casts or casts within a kind, + like float64 to float32, are allowed. + * 'unsafe' means any data conversions may be done. + + Returns + ------- + out : bool + True if cast can occur according to the casting rule. + + Notes + ----- + .. versionchanged:: 2.0 + This function does not support Python scalars anymore and does not + apply any value-based logic for 0-D arrays and NumPy scalars. + + See also + -------- + dtype, result_type + + Examples + -------- + Basic examples + + >>> import numpy as np + >>> np.can_cast(np.int32, np.int64) + True + >>> np.can_cast(np.float64, complex) + True + >>> np.can_cast(complex, float) + False + + >>> np.can_cast('i8', 'f8') + True + >>> np.can_cast('i8', 'f4') + False + >>> np.can_cast('i4', 'S4') + False + + """ + return (from_,) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.min_scalar_type) +def min_scalar_type(a, /): + """ + min_scalar_type(a, /) + + For scalar ``a``, returns the data type with the smallest size + and smallest scalar kind which can hold its value. For non-scalar + array ``a``, returns the vector's dtype unmodified. + + Floating point values are not demoted to integers, + and complex values are not demoted to floats. + + Parameters + ---------- + a : scalar or array_like + The value whose minimal data type is to be found. + + Returns + ------- + out : dtype + The minimal data type. + + See Also + -------- + result_type, promote_types, dtype, can_cast + + Examples + -------- + >>> import numpy as np + >>> np.min_scalar_type(10) + dtype('uint8') + + >>> np.min_scalar_type(-260) + dtype('int16') + + >>> np.min_scalar_type(3.1) + dtype('float16') + + >>> np.min_scalar_type(1e50) + dtype('float64') + + >>> np.min_scalar_type(np.arange(4,dtype='f8')) + dtype('float64') + + """ + return (a,) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.result_type) +def result_type(*arrays_and_dtypes): + """ + result_type(*arrays_and_dtypes) + + Returns the type that results from applying the NumPy + :ref:`type promotion ` rules to the arguments. + + Parameters + ---------- + arrays_and_dtypes : list of arrays and dtypes + The operands of some operation whose result type is needed. + + Returns + ------- + out : dtype + The result type. + + See also + -------- + dtype, promote_types, min_scalar_type, can_cast + + Examples + -------- + >>> import numpy as np + >>> np.result_type(3, np.arange(7, dtype='i1')) + dtype('int8') + + >>> np.result_type('i4', 'c8') + dtype('complex128') + + >>> np.result_type(3.0, -2) + dtype('float64') + + """ + return arrays_and_dtypes + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.dot) +def dot(a, b, out=None): + """ + dot(a, b, out=None) + + Dot product of two arrays. Specifically, + + - If both `a` and `b` are 1-D arrays, it is inner product of vectors + (without complex conjugation). + + - If both `a` and `b` are 2-D arrays, it is matrix multiplication, + but using :func:`matmul` or ``a @ b`` is preferred. + + - If either `a` or `b` is 0-D (scalar), it is equivalent to + :func:`multiply` and using ``numpy.multiply(a, b)`` or ``a * b`` is + preferred. + + - If `a` is an N-D array and `b` is a 1-D array, it is a sum product over + the last axis of `a` and `b`. + + - If `a` is an N-D array and `b` is an M-D array (where ``M>=2``), it is a + sum product over the last axis of `a` and the second-to-last axis of + `b`:: + + dot(a, b)[i,j,k,m] = sum(a[i,j,:] * b[k,:,m]) + + It uses an optimized BLAS library when possible (see `numpy.linalg`). + + Parameters + ---------- + a : array_like + First argument. + b : array_like + Second argument. + out : ndarray, optional + Output argument. This must have the exact kind that would be returned + if it was not used. In particular, it must have the right type, must be + C-contiguous, and its dtype must be the dtype that would be returned + for `dot(a,b)`. This is a performance feature. Therefore, if these + conditions are not met, an exception is raised, instead of attempting + to be flexible. + + Returns + ------- + output : ndarray + Returns the dot product of `a` and `b`. If `a` and `b` are both + scalars or both 1-D arrays then a scalar is returned; otherwise + an array is returned. + If `out` is given, then it is returned. + + Raises + ------ + ValueError + If the last dimension of `a` is not the same size as + the second-to-last dimension of `b`. + + See Also + -------- + vdot : Complex-conjugating dot product. + vecdot : Vector dot product of two arrays. + tensordot : Sum products over arbitrary axes. + einsum : Einstein summation convention. + matmul : '@' operator as method with out parameter. + linalg.multi_dot : Chained dot product. + + Examples + -------- + >>> import numpy as np + >>> np.dot(3, 4) + 12 + + Neither argument is complex-conjugated: + + >>> np.dot([2j, 3j], [2j, 3j]) + (-13+0j) + + For 2-D arrays it is the matrix product: + + >>> a = [[1, 0], [0, 1]] + >>> b = [[4, 1], [2, 2]] + >>> np.dot(a, b) + array([[4, 1], + [2, 2]]) + + >>> a = np.arange(3*4*5*6).reshape((3,4,5,6)) + >>> b = np.arange(3*4*5*6)[::-1].reshape((5,4,6,3)) + >>> np.dot(a, b)[2,3,2,1,2,2] + 499128 + >>> sum(a[2,3,2,:] * b[1,2,:,2]) + 499128 + + """ + return (a, b, out) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.vdot) +def vdot(a, b, /): + r""" + vdot(a, b, /) + + Return the dot product of two vectors. + + The `vdot` function handles complex numbers differently than `dot`: + if the first argument is complex, it is replaced by its complex conjugate + in the dot product calculation. `vdot` also handles multidimensional + arrays differently than `dot`: it does not perform a matrix product, but + flattens the arguments to 1-D arrays before taking a vector dot product. + + Consequently, when the arguments are 2-D arrays of the same shape, this + function effectively returns their + `Frobenius inner product `_ + (also known as the *trace inner product* or the *standard inner product* + on a vector space of matrices). + + Parameters + ---------- + a : array_like + If `a` is complex the complex conjugate is taken before calculation + of the dot product. + b : array_like + Second argument to the dot product. + + Returns + ------- + output : ndarray + Dot product of `a` and `b`. Can be an int, float, or + complex depending on the types of `a` and `b`. + + See Also + -------- + dot : Return the dot product without using the complex conjugate of the + first argument. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([1+2j,3+4j]) + >>> b = np.array([5+6j,7+8j]) + >>> np.vdot(a, b) + (70-8j) + >>> np.vdot(b, a) + (70+8j) + + Note that higher-dimensional arrays are flattened! + + >>> a = np.array([[1, 4], [5, 6]]) + >>> b = np.array([[4, 1], [2, 2]]) + >>> np.vdot(a, b) + 30 + >>> np.vdot(b, a) + 30 + >>> 1*4 + 4*1 + 5*2 + 6*2 + 30 + + """ # noqa: E501 + return (a, b) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.bincount) +def bincount(x, /, weights=None, minlength=0): + """ + bincount(x, /, weights=None, minlength=0) + + Count number of occurrences of each value in array of non-negative ints. + + The number of bins (of size 1) is one larger than the largest value in + `x`. If `minlength` is specified, there will be at least this number + of bins in the output array (though it will be longer if necessary, + depending on the contents of `x`). + Each bin gives the number of occurrences of its index value in `x`. + If `weights` is specified the input array is weighted by it, i.e. if a + value ``n`` is found at position ``i``, ``out[n] += weight[i]`` instead + of ``out[n] += 1``. + + Parameters + ---------- + x : array_like, 1 dimension, nonnegative ints + Input array. + weights : array_like, optional + Weights, array of the same shape as `x`. + minlength : int, optional + A minimum number of bins for the output array. + + Returns + ------- + out : ndarray of ints + The result of binning the input array. + The length of `out` is equal to ``np.amax(x)+1``. + + Raises + ------ + ValueError + If the input is not 1-dimensional, or contains elements with negative + values, or if `minlength` is negative. + TypeError + If the type of the input is float or complex. + + See Also + -------- + histogram, digitize, unique + + Examples + -------- + >>> import numpy as np + >>> np.bincount(np.arange(5)) + array([1, 1, 1, 1, 1]) + >>> np.bincount(np.array([0, 1, 1, 3, 2, 1, 7])) + array([1, 3, 1, 1, 0, 0, 0, 1]) + + >>> x = np.array([0, 1, 1, 3, 2, 1, 7, 23]) + >>> np.bincount(x).size == np.amax(x)+1 + True + + The input array needs to be of integer dtype, otherwise a + TypeError is raised: + + >>> np.bincount(np.arange(5, dtype=float)) + Traceback (most recent call last): + ... + TypeError: Cannot cast array data from dtype('float64') to dtype('int64') + according to the rule 'safe' + + A possible use of ``bincount`` is to perform sums over + variable-size chunks of an array, using the ``weights`` keyword. + + >>> w = np.array([0.3, 0.5, 0.2, 0.7, 1., -0.6]) # weights + >>> x = np.array([0, 1, 1, 2, 2, 2]) + >>> np.bincount(x, weights=w) + array([ 0.3, 0.7, 1.1]) + + """ + return (x, weights) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.ravel_multi_index) +def ravel_multi_index(multi_index, dims, mode="raise", order="C"): + """ + ravel_multi_index(multi_index, dims, mode='raise', order='C') + + Converts a tuple of index arrays into an array of flat + indices, applying boundary modes to the multi-index. + + Parameters + ---------- + multi_index : tuple of array_like + A tuple of integer arrays, one array for each dimension. + dims : tuple of ints + The shape of array into which the indices from ``multi_index`` apply. + mode : {'raise', 'wrap', 'clip'}, optional + Specifies how out-of-bounds indices are handled. Can specify + either one mode or a tuple of modes, one mode per index. + + * 'raise' -- raise an error (default) + * 'wrap' -- wrap around + * 'clip' -- clip to the range + + In 'clip' mode, a negative index which would normally + wrap will clip to 0 instead. + order : {'C', 'F'}, optional + Determines whether the multi-index should be viewed as + indexing in row-major (C-style) or column-major + (Fortran-style) order. + + Returns + ------- + raveled_indices : ndarray + An array of indices into the flattened version of an array + of dimensions ``dims``. + + See Also + -------- + unravel_index + + Examples + -------- + >>> import numpy as np + >>> arr = np.array([[3,6,6],[4,5,1]]) + >>> np.ravel_multi_index(arr, (7,6)) + array([22, 41, 37]) + >>> np.ravel_multi_index(arr, (7,6), order='F') + array([31, 41, 13]) + >>> np.ravel_multi_index(arr, (4,6), mode='clip') + array([22, 23, 19]) + >>> np.ravel_multi_index(arr, (4,4), mode=('clip','wrap')) + array([12, 13, 13]) + + >>> np.ravel_multi_index((3,1,4,1), (6,7,8,9)) + 1621 + """ + return multi_index + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.unravel_index) +def unravel_index(indices, shape, order="C"): + """ + unravel_index(indices, shape, order='C') + + Converts a flat index or array of flat indices into a tuple + of coordinate arrays. + + Parameters + ---------- + indices : array_like + An integer array whose elements are indices into the flattened + version of an array of dimensions ``shape``. Before version 1.6.0, + this function accepted just one index value. + shape : tuple of ints + The shape of the array to use for unraveling ``indices``. + order : {'C', 'F'}, optional + Determines whether the indices should be viewed as indexing in + row-major (C-style) or column-major (Fortran-style) order. + + Returns + ------- + unraveled_coords : tuple of ndarray + Each array in the tuple has the same shape as the ``indices`` + array. + + See Also + -------- + ravel_multi_index + + Examples + -------- + >>> import numpy as np + >>> np.unravel_index([22, 41, 37], (7,6)) + (array([3, 6, 6]), array([4, 5, 1])) + >>> np.unravel_index([31, 41, 13], (7,6), order='F') + (array([3, 6, 6]), array([4, 5, 1])) + + >>> np.unravel_index(1621, (6,7,8,9)) + (3, 1, 4, 1) + + """ + return (indices,) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.copyto) +def copyto(dst, src, casting="same_kind", where=True): + """ + copyto(dst, src, casting='same_kind', where=True) + + Copies values from one array to another, broadcasting as necessary. + + Raises a TypeError if the `casting` rule is violated, and if + `where` is provided, it selects which elements to copy. + + Parameters + ---------- + dst : ndarray + The array into which values are copied. + src : array_like + The array from which values are copied. + casting : {'no', 'equiv', 'safe', 'same_kind', 'unsafe'}, optional + Controls what kind of data casting may occur when copying. + + * 'no' means the data types should not be cast at all. + * 'equiv' means only byte-order changes are allowed. + * 'safe' means only casts which can preserve values are allowed. + * 'same_kind' means only safe casts or casts within a kind, + like float64 to float32, are allowed. + * 'unsafe' means any data conversions may be done. + where : array_like of bool, optional + A boolean array which is broadcasted to match the dimensions + of `dst`, and selects elements to copy from `src` to `dst` + wherever it contains the value True. + + Examples + -------- + >>> import numpy as np + >>> A = np.array([4, 5, 6]) + >>> B = [1, 2, 3] + >>> np.copyto(A, B) + >>> A + array([1, 2, 3]) + + >>> A = np.array([[1, 2, 3], [4, 5, 6]]) + >>> B = [[4, 5, 6], [7, 8, 9]] + >>> np.copyto(A, B) + >>> A + array([[4, 5, 6], + [7, 8, 9]]) + + """ + return (dst, src, where) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.putmask) +def putmask(a, /, mask, values): + """ + putmask(a, /, mask, values) + + Changes elements of an array based on conditional and input values. + + Sets ``a.flat[n] = values[n]`` for each n where ``mask.flat[n]==True``. + + If `values` is not the same size as `a` and `mask` then it will repeat. + This gives behavior different from ``a[mask] = values``. + + Parameters + ---------- + a : ndarray + Target array. + mask : array_like + Boolean mask array. It has to be the same shape as `a`. + values : array_like + Values to put into `a` where `mask` is True. If `values` is smaller + than `a` it will be repeated. + + See Also + -------- + place, put, take, copyto + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(6).reshape(2, 3) + >>> np.putmask(x, x>2, x**2) + >>> x + array([[ 0, 1, 2], + [ 9, 16, 25]]) + + If `values` is smaller than `a` it is repeated: + + >>> x = np.arange(5) + >>> np.putmask(x, x>1, [-33, -44]) + >>> x + array([ 0, 1, -33, -44, -33]) + + """ + return (a, mask, values) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.packbits) +def packbits(a, /, axis=None, bitorder="big"): + """ + packbits(a, /, axis=None, bitorder='big') + + Packs the elements of a binary-valued array into bits in a uint8 array. + + The result is padded to full bytes by inserting zero bits at the end. + + Parameters + ---------- + a : array_like + An array of integers or booleans whose elements should be packed to + bits. + axis : int, optional + The dimension over which bit-packing is done. + ``None`` implies packing the flattened array. + bitorder : {'big', 'little'}, optional + The order of the input bits. 'big' will mimic bin(val), + ``[0, 0, 0, 0, 0, 0, 1, 1] => 3 = 0b00000011``, 'little' will + reverse the order so ``[1, 1, 0, 0, 0, 0, 0, 0] => 3``. + Defaults to 'big'. + + Returns + ------- + packed : ndarray + Array of type uint8 whose elements represent bits corresponding to the + logical (0 or nonzero) value of the input elements. The shape of + `packed` has the same number of dimensions as the input (unless `axis` + is None, in which case the output is 1-D). + + See Also + -------- + unpackbits: Unpacks elements of a uint8 array into a binary-valued output + array. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[[1,0,1], + ... [0,1,0]], + ... [[1,1,0], + ... [0,0,1]]]) + >>> b = np.packbits(a, axis=-1) + >>> b + array([[[160], + [ 64]], + [[192], + [ 32]]], dtype=uint8) + + Note that in binary 160 = 1010 0000, 64 = 0100 0000, 192 = 1100 0000, + and 32 = 0010 0000. + + """ + return (a,) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.unpackbits) +def unpackbits(a, /, axis=None, count=None, bitorder="big"): + """ + unpackbits(a, /, axis=None, count=None, bitorder='big') + + Unpacks elements of a uint8 array into a binary-valued output array. + + Each element of `a` represents a bit-field that should be unpacked + into a binary-valued output array. The shape of the output array is + either 1-D (if `axis` is ``None``) or the same shape as the input + array with unpacking done along the axis specified. + + Parameters + ---------- + a : ndarray, uint8 type + Input array. + axis : int, optional + The dimension over which bit-unpacking is done. + ``None`` implies unpacking the flattened array. + count : int or None, optional + The number of elements to unpack along `axis`, provided as a way + of undoing the effect of packing a size that is not a multiple + of eight. A non-negative number means to only unpack `count` + bits. A negative number means to trim off that many bits from + the end. ``None`` means to unpack the entire array (the + default). Counts larger than the available number of bits will + add zero padding to the output. Negative counts must not + exceed the available number of bits. + bitorder : {'big', 'little'}, optional + The order of the returned bits. 'big' will mimic bin(val), + ``3 = 0b00000011 => [0, 0, 0, 0, 0, 0, 1, 1]``, 'little' will reverse + the order to ``[1, 1, 0, 0, 0, 0, 0, 0]``. + Defaults to 'big'. + + Returns + ------- + unpacked : ndarray, uint8 type + The elements are binary-valued (0 or 1). + + See Also + -------- + packbits : Packs the elements of a binary-valued array into bits in + a uint8 array. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([[2], [7], [23]], dtype=np.uint8) + >>> a + array([[ 2], + [ 7], + [23]], dtype=uint8) + >>> b = np.unpackbits(a, axis=1) + >>> b + array([[0, 0, 0, 0, 0, 0, 1, 0], + [0, 0, 0, 0, 0, 1, 1, 1], + [0, 0, 0, 1, 0, 1, 1, 1]], dtype=uint8) + >>> c = np.unpackbits(a, axis=1, count=-3) + >>> c + array([[0, 0, 0, 0, 0], + [0, 0, 0, 0, 0], + [0, 0, 0, 1, 0]], dtype=uint8) + + >>> p = np.packbits(b, axis=0) + >>> np.unpackbits(p, axis=0) + array([[0, 0, 0, 0, 0, 0, 1, 0], + [0, 0, 0, 0, 0, 1, 1, 1], + [0, 0, 0, 1, 0, 1, 1, 1], + [0, 0, 0, 0, 0, 0, 0, 0], + [0, 0, 0, 0, 0, 0, 0, 0], + [0, 0, 0, 0, 0, 0, 0, 0], + [0, 0, 0, 0, 0, 0, 0, 0], + [0, 0, 0, 0, 0, 0, 0, 0]], dtype=uint8) + >>> np.array_equal(b, np.unpackbits(p, axis=0, count=b.shape[0])) + True + + """ + return (a,) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.shares_memory) +def shares_memory(a, b, /, max_work=-1): + """ + shares_memory(a, b, /, max_work=-1) + + Determine if two arrays share memory. + + .. warning:: + + This function can be exponentially slow for some inputs, unless + `max_work` is set to zero or a positive integer. + If in doubt, use `numpy.may_share_memory` instead. + + Parameters + ---------- + a, b : ndarray + Input arrays + max_work : int, optional + Effort to spend on solving the overlap problem (maximum number + of candidate solutions to consider). The following special + values are recognized: + + max_work=-1 (default) + The problem is solved exactly. In this case, the function returns + True only if there is an element shared between the arrays. Finding + the exact solution may take extremely long in some cases. + max_work=0 + Only the memory bounds of a and b are checked. + This is equivalent to using ``may_share_memory()``. + + Raises + ------ + numpy.exceptions.TooHardError + Exceeded max_work. + + Returns + ------- + out : bool + + See Also + -------- + may_share_memory + + Examples + -------- + >>> import numpy as np + >>> x = np.array([1, 2, 3, 4]) + >>> np.shares_memory(x, np.array([5, 6, 7])) + False + >>> np.shares_memory(x[::2], x) + True + >>> np.shares_memory(x[::2], x[1::2]) + False + + Checking whether two arrays share memory is NP-complete, and + runtime may increase exponentially in the number of + dimensions. Hence, `max_work` should generally be set to a finite + number, as it is possible to construct examples that take + extremely long to run: + + >>> from numpy.lib.stride_tricks import as_strided + >>> x = np.zeros([192163377], dtype=np.int8) + >>> x1 = as_strided( + ... x, strides=(36674, 61119, 85569), shape=(1049, 1049, 1049)) + >>> x2 = as_strided( + ... x[64023025:], strides=(12223, 12224, 1), shape=(1049, 1049, 1)) + >>> np.shares_memory(x1, x2, max_work=1000) + Traceback (most recent call last): + ... + numpy.exceptions.TooHardError: Exceeded max_work + + Running ``np.shares_memory(x1, x2)`` without `max_work` set takes + around 1 minute for this case. It is possible to find problems + that take still significantly longer. + + """ + return (a, b) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.may_share_memory) +def may_share_memory(a, b, /, max_work=0): + """ + may_share_memory(a, b, /, max_work=0) + + Determine if two arrays might share memory + + A return of True does not necessarily mean that the two arrays + share any element. It just means that they *might*. + + Only the memory bounds of a and b are checked by default. + + Parameters + ---------- + a, b : ndarray + Input arrays + max_work : int, optional + Effort to spend on solving the overlap problem. See + `shares_memory` for details. Default for ``may_share_memory`` + is to do a bounds check. + + Returns + ------- + out : bool + + See Also + -------- + shares_memory + + Examples + -------- + >>> import numpy as np + >>> np.may_share_memory(np.array([1,2]), np.array([5,8,9])) + False + >>> x = np.zeros([3, 4]) + >>> np.may_share_memory(x[:,0], x[:,1]) + True + + """ + return (a, b) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.is_busday) +def is_busday(dates, weekmask="1111100", holidays=None, busdaycal=None, out=None): + """ + is_busday( + dates, + weekmask='1111100', + holidays=None, + busdaycal=None, + out=None, + ) + + Calculates which of the given dates are valid days, and which are not. + + Parameters + ---------- + dates : array_like of datetime64[D] + The array of dates to process. + weekmask : str or array_like of bool, optional + A seven-element array indicating which of Monday through Sunday are + valid days. May be specified as a length-seven list or array, like + [1,1,1,1,1,0,0]; a length-seven string, like '1111100'; or a string + like "Mon Tue Wed Thu Fri", made up of 3-character abbreviations for + weekdays, optionally separated by white space. Valid abbreviations + are: Mon Tue Wed Thu Fri Sat Sun + holidays : array_like of datetime64[D], optional + An array of dates to consider as invalid dates. They may be + specified in any order, and NaT (not-a-time) dates are ignored. + This list is saved in a normalized form that is suited for + fast calculations of valid days. + busdaycal : busdaycalendar, optional + A `busdaycalendar` object which specifies the valid days. If this + parameter is provided, neither weekmask nor holidays may be + provided. + out : array of bool, optional + If provided, this array is filled with the result. + + Returns + ------- + out : array of bool + An array with the same shape as ``dates``, containing True for + each valid day, and False for each invalid day. + + See Also + -------- + busdaycalendar : An object that specifies a custom set of valid days. + busday_offset : Applies an offset counted in valid days. + busday_count : Counts how many valid days are in a half-open date range. + + Examples + -------- + >>> import numpy as np + >>> # The weekdays are Friday, Saturday, and Monday + ... np.is_busday(['2011-07-01', '2011-07-02', '2011-07-18'], + ... holidays=['2011-07-01', '2011-07-04', '2011-07-17']) + array([False, False, True]) + """ + return (dates, weekmask, holidays, out) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.busday_offset) +def busday_offset(dates, offsets, roll="raise", weekmask="1111100", holidays=None, + busdaycal=None, out=None): + """ + busday_offset( + dates, + offsets, + roll='raise', + weekmask='1111100', + holidays=None, + busdaycal=None, + out=None, + ) + + First adjusts the date to fall on a valid day according to + the ``roll`` rule, then applies offsets to the given dates + counted in valid days. + + Parameters + ---------- + dates : array_like of datetime64[D] + The array of dates to process. + offsets : array_like of int + The array of offsets, which is broadcast with ``dates``. + roll : {'raise', 'nat', 'forward', 'following', 'backward', 'preceding', \ + 'modifiedfollowing', 'modifiedpreceding'}, optional + How to treat dates that do not fall on a valid day. The default + is 'raise'. + + * 'raise' means to raise an exception for an invalid day. + * 'nat' means to return a NaT (not-a-time) for an invalid day. + * 'forward' and 'following' mean to take the first valid day + later in time. + * 'backward' and 'preceding' mean to take the first valid day + earlier in time. + * 'modifiedfollowing' means to take the first valid day + later in time unless it is across a Month boundary, in which + case to take the first valid day earlier in time. + * 'modifiedpreceding' means to take the first valid day + earlier in time unless it is across a Month boundary, in which + case to take the first valid day later in time. + weekmask : str or array_like of bool, optional + A seven-element array indicating which of Monday through Sunday are + valid days. May be specified as a length-seven list or array, like + [1,1,1,1,1,0,0]; a length-seven string, like '1111100'; or a string + like "Mon Tue Wed Thu Fri", made up of 3-character abbreviations for + weekdays, optionally separated by white space. Valid abbreviations + are: Mon Tue Wed Thu Fri Sat Sun + holidays : array_like of datetime64[D], optional + An array of dates to consider as invalid dates. They may be + specified in any order, and NaT (not-a-time) dates are ignored. + This list is saved in a normalized form that is suited for + fast calculations of valid days. + busdaycal : busdaycalendar, optional + A `busdaycalendar` object which specifies the valid days. If this + parameter is provided, neither weekmask nor holidays may be + provided. + out : array of datetime64[D], optional + If provided, this array is filled with the result. + + Returns + ------- + out : array of datetime64[D] + An array with a shape from broadcasting ``dates`` and ``offsets`` + together, containing the dates with offsets applied. + + See Also + -------- + busdaycalendar : An object that specifies a custom set of valid days. + is_busday : Returns a boolean array indicating valid days. + busday_count : Counts how many valid days are in a half-open date range. + + Examples + -------- + >>> import numpy as np + >>> # First business day in October 2011 (not accounting for holidays) + ... np.busday_offset('2011-10', 0, roll='forward') + np.datetime64('2011-10-03') + >>> # Last business day in February 2012 (not accounting for holidays) + ... np.busday_offset('2012-03', -1, roll='forward') + np.datetime64('2012-02-29') + >>> # Third Wednesday in January 2011 + ... np.busday_offset('2011-01', 2, roll='forward', weekmask='Wed') + np.datetime64('2011-01-19') + >>> # 2012 Mother's Day in Canada and the U.S. + ... np.busday_offset('2012-05', 1, roll='forward', weekmask='Sun') + np.datetime64('2012-05-13') + + >>> # First business day on or after a date + ... np.busday_offset('2011-03-20', 0, roll='forward') + np.datetime64('2011-03-21') + >>> np.busday_offset('2011-03-22', 0, roll='forward') + np.datetime64('2011-03-22') + >>> # First business day after a date + ... np.busday_offset('2011-03-20', 1, roll='backward') + np.datetime64('2011-03-21') + >>> np.busday_offset('2011-03-22', 1, roll='backward') + np.datetime64('2011-03-23') + """ + return (dates, offsets, weekmask, holidays, out) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.busday_count) +def busday_count(begindates, enddates, weekmask="1111100", holidays=(), + busdaycal=None, out=None): + """ + busday_count( + begindates, + enddates, + weekmask='1111100', + holidays=[], + busdaycal=None, + out=None + ) + + Counts the number of valid days between `begindates` and + `enddates`, not including the day of `enddates`. + + If ``enddates`` specifies a date value that is earlier than the + corresponding ``begindates`` date value, the count will be negative. + + Parameters + ---------- + begindates : array_like of datetime64[D] + The array of the first dates for counting. + enddates : array_like of datetime64[D] + The array of the end dates for counting, which are excluded + from the count themselves. + weekmask : str or array_like of bool, optional + A seven-element array indicating which of Monday through Sunday are + valid days. May be specified as a length-seven list or array, like + [1,1,1,1,1,0,0]; a length-seven string, like '1111100'; or a string + like "Mon Tue Wed Thu Fri", made up of 3-character abbreviations for + weekdays, optionally separated by white space. Valid abbreviations + are: Mon Tue Wed Thu Fri Sat Sun + holidays : array_like of datetime64[D], optional + An array of dates to consider as invalid dates. They may be + specified in any order, and NaT (not-a-time) dates are ignored. + This list is saved in a normalized form that is suited for + fast calculations of valid days. + busdaycal : busdaycalendar, optional + A `busdaycalendar` object which specifies the valid days. If this + parameter is provided, neither weekmask nor holidays may be + provided. + out : array of int, optional + If provided, this array is filled with the result. + + Returns + ------- + out : array of int + An array with a shape from broadcasting ``begindates`` and ``enddates`` + together, containing the number of valid days between + the begin and end dates. + + See Also + -------- + busdaycalendar : An object that specifies a custom set of valid days. + is_busday : Returns a boolean array indicating valid days. + busday_offset : Applies an offset counted in valid days. + + Examples + -------- + >>> import numpy as np + >>> # Number of weekdays in January 2011 + ... np.busday_count('2011-01', '2011-02') + 21 + >>> # Number of weekdays in 2011 + >>> np.busday_count('2011', '2012') + 260 + >>> # Number of Saturdays in 2011 + ... np.busday_count('2011', '2012', weekmask='Sat') + 53 + """ + return (begindates, enddates, weekmask, holidays, out) + + +@array_function_from_c_func_and_dispatcher(_multiarray_umath.datetime_as_string) +def datetime_as_string(arr, unit=None, timezone="naive", casting="same_kind"): + """ + datetime_as_string(arr, unit=None, timezone='naive', casting='same_kind') + + Convert an array of datetimes into an array of strings. + + Parameters + ---------- + arr : array_like of datetime64 + The array of UTC timestamps to format. + unit : str + One of None, 'auto', or + a :ref:`datetime unit `. + timezone : {'naive', 'UTC', 'local'} or tzinfo + Timezone information to use when displaying the datetime. If 'UTC', + end with a Z to indicate UTC time. If 'local', convert to the local + timezone first, and suffix with a +-#### timezone offset. If a tzinfo + object, then do as with 'local', but use the specified timezone. + casting : {'no', 'equiv', 'safe', 'same_kind', 'unsafe'} + Casting to allow when changing between datetime units. + + Returns + ------- + str_arr : ndarray + An array of strings the same shape as `arr`. + + Examples + -------- + >>> import numpy as np + >>> from zoneinfo import ZoneInfo + >>> d = np.arange('2002-10-27T04:30', 4*60, 60, dtype='M8[m]') + >>> d + array(['2002-10-27T04:30', '2002-10-27T05:30', '2002-10-27T06:30', + '2002-10-27T07:30'], dtype='datetime64[m]') + + Setting the timezone to UTC shows the same information, but with a Z suffix + + >>> np.datetime_as_string(d, timezone='UTC') + array(['2002-10-27T04:30Z', '2002-10-27T05:30Z', '2002-10-27T06:30Z', + '2002-10-27T07:30Z'], dtype='>> np.datetime_as_string(d, timezone=ZoneInfo('US/Eastern')) + array(['2002-10-27T00:30-0400', '2002-10-27T01:30-0400', + '2002-10-27T01:30-0500', '2002-10-27T02:30-0500'], dtype='>> np.datetime_as_string(d, unit='h') + array(['2002-10-27T04', '2002-10-27T05', '2002-10-27T06', '2002-10-27T07'], + dtype='>> np.datetime_as_string(d, unit='s') + array(['2002-10-27T04:30:00', '2002-10-27T05:30:00', '2002-10-27T06:30:00', + '2002-10-27T07:30:00'], dtype='>> np.datetime_as_string(d, unit='h', casting='safe') + Traceback (most recent call last): + ... + TypeError: Cannot create a datetime string as units 'h' from a NumPy + datetime with units 'm' according to the rule 'safe' + """ + return (arr,) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/multiarray.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/multiarray.pyi new file mode 100644 index 0000000000000000000000000000000000000000..279ba5a81b81ae68a0ecaa9aa03cf2678aedc26a --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/multiarray.pyi @@ -0,0 +1,1328 @@ +# TODO: Sort out any and all missing functions in this namespace +import datetime as dt +from _typeshed import Incomplete, StrOrBytesPath, SupportsLenAndGetItem +from collections.abc import Callable, Iterable, Sequence +from typing import ( + Any, + ClassVar, + Final, + Literal as L, + Protocol, + SupportsIndex, + TypeAlias, + TypeVar, + final, + overload, + type_check_only, +) +from typing_extensions import CapsuleType + +import numpy as np +from numpy import ( # type: ignore[attr-defined] # Python >=3.12 + _AnyShapeT, + _CastingKind, + _CopyMode, + _ModeKind, + _NDIterFlagsKind, + _NDIterFlagsOp, + _OrderCF, + _OrderKACF, + _SupportsBuffer, + _SupportsFileMethods, + broadcast, + busdaycalendar, + complexfloating, + correlate, + count_nonzero, + datetime64, + dtype, + einsum as c_einsum, + flatiter, + float64, + floating, + from_dlpack, + generic, + int_, + interp, + intp, + matmul, + ndarray, + nditer, + signedinteger, + str_, + timedelta64, + ufunc, + uint8, + unsignedinteger, + vecdot, +) +from numpy._typing import ( + ArrayLike, + DTypeLike, + NDArray, + _AnyShape, + _ArrayLike, + _ArrayLikeBool_co, + _ArrayLikeBytes_co, + _ArrayLikeComplex_co, + _ArrayLikeDT64_co, + _ArrayLikeFloat_co, + _ArrayLikeInt_co, + _ArrayLikeObject_co, + _ArrayLikeStr_co, + _ArrayLikeTD64_co, + _ArrayLikeUInt_co, + _DT64Codes, + _DTypeLike, + _FloatLike_co, + _IntLike_co, + _NestedSequence, + _ScalarLike_co, + _Shape, + _ShapeLike, + _SupportsArrayFunc, + _SupportsDType, + _TD64Like_co, +) +from numpy._typing._ufunc import ( + _2PTuple, + _PyFunc_Nin1_Nout1, + _PyFunc_Nin1P_Nout2P, + _PyFunc_Nin2_Nout1, + _PyFunc_Nin3P_Nout1, +) + +__all__ = [ + "_ARRAY_API", + "ALLOW_THREADS", + "BUFSIZE", + "CLIP", + "DATETIMEUNITS", + "ITEM_HASOBJECT", + "ITEM_IS_POINTER", + "LIST_PICKLE", + "MAXDIMS", + "MAY_SHARE_BOUNDS", + "MAY_SHARE_EXACT", + "NEEDS_INIT", + "NEEDS_PYAPI", + "RAISE", + "USE_GETITEM", + "USE_SETITEM", + "WRAP", + "_flagdict", + "from_dlpack", + "_place", + "_reconstruct", + "_vec_string", + "_monotonicity", + "add_docstring", + "arange", + "array", + "asarray", + "asanyarray", + "ascontiguousarray", + "asfortranarray", + "bincount", + "broadcast", + "busday_count", + "busday_offset", + "busdaycalendar", + "can_cast", + "compare_chararrays", + "concatenate", + "copyto", + "correlate", + "correlate2", + "count_nonzero", + "c_einsum", + "datetime_as_string", + "datetime_data", + "dot", + "dragon4_positional", + "dragon4_scientific", + "dtype", + "empty", + "empty_like", + "error", + "flagsobj", + "flatiter", + "format_longfloat", + "frombuffer", + "fromfile", + "fromiter", + "fromstring", + "get_handler_name", + "get_handler_version", + "inner", + "interp", + "interp_complex", + "is_busday", + "lexsort", + "matmul", + "vecdot", + "may_share_memory", + "min_scalar_type", + "ndarray", + "nditer", + "nested_iters", + "normalize_axis_index", + "packbits", + "promote_types", + "putmask", + "ravel_multi_index", + "result_type", + "scalar", + "set_datetimeparse_function", + "set_typeDict", + "shares_memory", + "typeinfo", + "unpackbits", + "unravel_index", + "vdot", + "where", + "zeros", +] + +_ScalarT = TypeVar("_ScalarT", bound=generic) +_DTypeT = TypeVar("_DTypeT", bound=np.dtype) +_ArrayT = TypeVar("_ArrayT", bound=ndarray) +_ArrayT_co = TypeVar("_ArrayT_co", bound=ndarray, covariant=True) +_ShapeT = TypeVar("_ShapeT", bound=_Shape) +# TODO: fix the names of these typevars +_ReturnType = TypeVar("_ReturnType") +_IDType = TypeVar("_IDType") +_Nin = TypeVar("_Nin", bound=int) +_Nout = TypeVar("_Nout", bound=int) + +_Array: TypeAlias = ndarray[_ShapeT, dtype[_ScalarT]] +_Array1D: TypeAlias = ndarray[tuple[int], dtype[_ScalarT]] + +# Valid time units +_UnitKind: TypeAlias = L[ + "Y", + "M", + "D", + "h", + "m", + "s", + "ms", + "us", "μs", + "ns", + "ps", + "fs", + "as", +] +_RollKind: TypeAlias = L[ # `raise` is deliberately excluded + "nat", + "forward", + "following", + "backward", + "preceding", + "modifiedfollowing", + "modifiedpreceding", +] + +@type_check_only +class _SupportsArray(Protocol[_ArrayT_co]): + def __array__(self, /) -> _ArrayT_co: ... + +@type_check_only +class _ConstructorEmpty(Protocol): + # 1-D shape + @overload + def __call__( + self, + /, + shape: SupportsIndex, + dtype: None = None, + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, + ) -> _Array1D[float64]: ... + @overload + def __call__( + self, + /, + shape: SupportsIndex, + dtype: _DTypeT | _SupportsDType[_DTypeT], + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, + ) -> ndarray[tuple[int], _DTypeT]: ... + @overload + def __call__( + self, + /, + shape: SupportsIndex, + dtype: type[_ScalarT], + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, + ) -> _Array1D[_ScalarT]: ... + @overload + def __call__( + self, + /, + shape: SupportsIndex, + dtype: DTypeLike | None = None, + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, + ) -> _Array1D[Incomplete]: ... + + # known shape + @overload + def __call__( + self, + /, + shape: _AnyShapeT, + dtype: None = None, + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, + ) -> _Array[_AnyShapeT, float64]: ... + @overload + def __call__( + self, + /, + shape: _AnyShapeT, + dtype: _DTypeT | _SupportsDType[_DTypeT], + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, + ) -> ndarray[_AnyShapeT, _DTypeT]: ... + @overload + def __call__( + self, + /, + shape: _AnyShapeT, + dtype: type[_ScalarT], + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, + ) -> _Array[_AnyShapeT, _ScalarT]: ... + @overload + def __call__( + self, + /, + shape: _AnyShapeT, + dtype: DTypeLike | None = None, + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, + ) -> _Array[_AnyShapeT, Incomplete]: ... + + # unknown shape + @overload + def __call__( + self, /, + shape: _ShapeLike, + dtype: None = None, + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, + ) -> NDArray[float64]: ... + @overload + def __call__( + self, /, + shape: _ShapeLike, + dtype: _DTypeT | _SupportsDType[_DTypeT], + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, + ) -> ndarray[_AnyShape, _DTypeT]: ... + @overload + def __call__( + self, /, + shape: _ShapeLike, + dtype: type[_ScalarT], + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, + ) -> NDArray[_ScalarT]: ... + @overload + def __call__( + self, + /, + shape: _ShapeLike, + dtype: DTypeLike | None = None, + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, + ) -> NDArray[Incomplete]: ... + +# using `Final` or `TypeAlias` will break stubtest +error = Exception + +# from ._multiarray_umath +ITEM_HASOBJECT: Final = 1 +LIST_PICKLE: Final = 2 +ITEM_IS_POINTER: Final = 4 +NEEDS_INIT: Final = 8 +NEEDS_PYAPI: Final = 16 +USE_GETITEM: Final = 32 +USE_SETITEM: Final = 64 +DATETIMEUNITS: Final[CapsuleType] = ... +_ARRAY_API: Final[CapsuleType] = ... + +_flagdict: Final[dict[str, int]] = ... +_monotonicity: Final[Callable[..., object]] = ... +_place: Final[Callable[..., object]] = ... +_reconstruct: Final[Callable[..., object]] = ... +_vec_string: Final[Callable[..., object]] = ... +correlate2: Final[Callable[..., object]] = ... +dragon4_positional: Final[Callable[..., object]] = ... +dragon4_scientific: Final[Callable[..., object]] = ... +interp_complex: Final[Callable[..., object]] = ... +set_datetimeparse_function: Final[Callable[..., object]] = ... + +def get_handler_name(a: NDArray[Any] = ..., /) -> str | None: ... +def get_handler_version(a: NDArray[Any] = ..., /) -> int | None: ... +def format_longfloat(x: np.longdouble, precision: int) -> str: ... +def scalar(dtype: _DTypeT, object: bytes | object = ...) -> ndarray[tuple[()], _DTypeT]: ... +def set_typeDict(dict_: dict[str, np.dtype], /) -> None: ... + +typeinfo: Final[dict[str, np.dtype[np.generic]]] = ... + +ALLOW_THREADS: Final[int] # 0 or 1 (system-specific) +BUFSIZE: Final = 8_192 +CLIP: Final = 0 +WRAP: Final = 1 +RAISE: Final = 2 +MAXDIMS: Final = 64 +MAY_SHARE_BOUNDS: Final = 0 +MAY_SHARE_EXACT: Final = -1 +tracemalloc_domain: Final = 389_047 + +zeros: Final[_ConstructorEmpty] = ... +empty: Final[_ConstructorEmpty] = ... + +@overload +def empty_like( + prototype: _ArrayT, + /, + dtype: None = None, + order: _OrderKACF = "K", + subok: bool = True, + shape: _ShapeLike | None = None, + *, + device: L["cpu"] | None = None, +) -> _ArrayT: ... +@overload +def empty_like( + prototype: _ArrayLike[_ScalarT], + /, + dtype: None = None, + order: _OrderKACF = "K", + subok: bool = True, + shape: _ShapeLike | None = None, + *, + device: L["cpu"] | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def empty_like( + prototype: Incomplete, + /, + dtype: _DTypeLike[_ScalarT], + order: _OrderKACF = "K", + subok: bool = True, + shape: _ShapeLike | None = None, + *, + device: L["cpu"] | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def empty_like( + prototype: Incomplete, + /, + dtype: DTypeLike | None = None, + order: _OrderKACF = "K", + subok: bool = True, + shape: _ShapeLike | None = None, + *, + device: L["cpu"] | None = None, +) -> NDArray[Incomplete]: ... + +@overload +def array( + object: _ArrayT, + dtype: None = None, + *, + copy: bool | _CopyMode | None = True, + order: _OrderKACF = "K", + subok: L[True], + ndmin: int = 0, + ndmax: int = 0, + like: _SupportsArrayFunc | None = None, +) -> _ArrayT: ... +@overload +def array( + object: _SupportsArray[_ArrayT], + dtype: None = None, + *, + copy: bool | _CopyMode | None = True, + order: _OrderKACF = "K", + subok: L[True], + ndmin: L[0] = 0, + ndmax: int = 0, + like: _SupportsArrayFunc | None = None, +) -> _ArrayT: ... +@overload +def array( + object: _ArrayLike[_ScalarT], + dtype: None = None, + *, + copy: bool | _CopyMode | None = True, + order: _OrderKACF = "K", + subok: bool = False, + ndmin: int = 0, + ndmax: int = 0, + like: _SupportsArrayFunc | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def array( + object: Any, + dtype: _DTypeLike[_ScalarT], + *, + copy: bool | _CopyMode | None = True, + order: _OrderKACF = "K", + subok: bool = False, + ndmin: int = 0, + ndmax: int = 0, + like: _SupportsArrayFunc | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def array( + object: Any, + dtype: DTypeLike | None = None, + *, + copy: bool | _CopyMode | None = True, + order: _OrderKACF = "K", + subok: bool = False, + ndmin: int = 0, + ndmax: int = 0, + like: _SupportsArrayFunc | None = None, +) -> NDArray[Any]: ... + +# +@overload +def ravel_multi_index( + multi_index: SupportsLenAndGetItem[_IntLike_co], + dims: _ShapeLike, + mode: _ModeKind | tuple[_ModeKind, ...] = "raise", + order: _OrderCF = "C", +) -> intp: ... +@overload +def ravel_multi_index( + multi_index: SupportsLenAndGetItem[_ArrayLikeInt_co], + dims: _ShapeLike, + mode: _ModeKind | tuple[_ModeKind, ...] = "raise", + order: _OrderCF = "C", +) -> NDArray[intp]: ... + +# +@overload +def unravel_index(indices: _IntLike_co, shape: _ShapeLike, order: _OrderCF = "C") -> tuple[intp, ...]: ... +@overload +def unravel_index(indices: _ArrayLikeInt_co, shape: _ShapeLike, order: _OrderCF = "C") -> tuple[NDArray[intp], ...]: ... + +# +def normalize_axis_index(axis: int, ndim: int, msg_prefix: str | None = None) -> int: ... + +# NOTE: Allow any sequence of array-like objects +@overload +def concatenate( + arrays: _ArrayLike[_ScalarT], + /, + axis: SupportsIndex | None = 0, + out: None = None, + *, + dtype: None = None, + casting: _CastingKind | None = "same_kind", +) -> NDArray[_ScalarT]: ... +@overload +def concatenate( + arrays: SupportsLenAndGetItem[ArrayLike], + /, + axis: SupportsIndex | None = 0, + out: None = None, + *, + dtype: _DTypeLike[_ScalarT], + casting: _CastingKind | None = "same_kind", +) -> NDArray[_ScalarT]: ... +@overload +def concatenate( + arrays: SupportsLenAndGetItem[ArrayLike], + /, + axis: SupportsIndex | None = 0, + out: None = None, + *, + dtype: DTypeLike | None = None, + casting: _CastingKind | None = "same_kind", +) -> NDArray[Incomplete]: ... +@overload +def concatenate( + arrays: SupportsLenAndGetItem[ArrayLike], + /, + axis: SupportsIndex | None = 0, + *, + out: _ArrayT, + dtype: DTypeLike | None = None, + casting: _CastingKind | None = "same_kind", +) -> _ArrayT: ... +@overload +def concatenate( + arrays: SupportsLenAndGetItem[ArrayLike], + /, + axis: SupportsIndex | None, + out: _ArrayT, + *, + dtype: DTypeLike | None = None, + casting: _CastingKind | None = "same_kind", +) -> _ArrayT: ... + +def inner(a: ArrayLike, b: ArrayLike, /) -> Incomplete: ... + +@overload +def where(condition: ArrayLike, x: None = None, y: None = None, /) -> tuple[NDArray[intp], ...]: ... +@overload +def where(condition: ArrayLike, x: ArrayLike, y: ArrayLike, /) -> NDArray[Incomplete]: ... + +def lexsort(keys: ArrayLike, axis: SupportsIndex = -1) -> NDArray[intp]: ... + +def can_cast(from_: ArrayLike | DTypeLike, to: DTypeLike, casting: _CastingKind = "safe") -> bool: ... + +def min_scalar_type(a: ArrayLike, /) -> dtype: ... +def result_type(*arrays_and_dtypes: ArrayLike | DTypeLike | None) -> dtype: ... + +@overload +def dot(a: ArrayLike, b: ArrayLike, out: None = None) -> Incomplete: ... +@overload +def dot(a: ArrayLike, b: ArrayLike, out: _ArrayT) -> _ArrayT: ... + +@overload +def vdot(a: _ArrayLikeBool_co, b: _ArrayLikeBool_co, /) -> np.bool: ... +@overload +def vdot(a: _ArrayLikeUInt_co, b: _ArrayLikeUInt_co, /) -> unsignedinteger: ... +@overload +def vdot(a: _ArrayLikeInt_co, b: _ArrayLikeInt_co, /) -> signedinteger: ... +@overload +def vdot(a: _ArrayLikeFloat_co, b: _ArrayLikeFloat_co, /) -> floating: ... +@overload +def vdot(a: _ArrayLikeComplex_co, b: _ArrayLikeComplex_co, /) -> complexfloating: ... +@overload +def vdot(a: _ArrayLikeTD64_co, b: _ArrayLikeTD64_co, /) -> timedelta64: ... +@overload +def vdot(a: _ArrayLikeObject_co, b: object, /) -> Any: ... +@overload +def vdot(a: object, b: _ArrayLikeObject_co, /) -> Any: ... + +def bincount(x: ArrayLike, /, weights: ArrayLike | None = None, minlength: SupportsIndex = 0) -> NDArray[intp]: ... + +def copyto(dst: ndarray, src: ArrayLike, casting: _CastingKind = "same_kind", where: object = True) -> None: ... +def putmask(a: ndarray, /, mask: _ArrayLikeBool_co, values: ArrayLike) -> None: ... + +_BitOrder: TypeAlias = L["big", "little"] + +@overload +def packbits(a: _ArrayLikeInt_co, /, axis: None = None, bitorder: _BitOrder = "big") -> ndarray[tuple[int], dtype[uint8]]: ... +@overload +def packbits(a: _ArrayLikeInt_co, /, axis: SupportsIndex, bitorder: _BitOrder = "big") -> NDArray[uint8]: ... + +@overload +def unpackbits( + a: _ArrayLike[uint8], + /, + axis: None = None, + count: SupportsIndex | None = None, + bitorder: _BitOrder = "big", +) -> ndarray[tuple[int], dtype[uint8]]: ... +@overload +def unpackbits( + a: _ArrayLike[uint8], + /, + axis: SupportsIndex, + count: SupportsIndex | None = None, + bitorder: _BitOrder = "big", +) -> NDArray[uint8]: ... + +_MaxWork: TypeAlias = L[-1, 0] + +# any two python objects will be accepted, not just `ndarray`s +def shares_memory(a: object, b: object, /, max_work: _MaxWork = -1) -> bool: ... +def may_share_memory(a: object, b: object, /, max_work: _MaxWork = 0) -> bool: ... + +@overload +def asarray( + a: _ArrayLike[_ScalarT], + dtype: None = None, + order: _OrderKACF = ..., + *, + device: L["cpu"] | None = ..., + copy: bool | None = ..., + like: _SupportsArrayFunc | None = ..., +) -> NDArray[_ScalarT]: ... +@overload +def asarray( + a: Any, + dtype: _DTypeLike[_ScalarT], + order: _OrderKACF = ..., + *, + device: L["cpu"] | None = ..., + copy: bool | None = ..., + like: _SupportsArrayFunc | None = ..., +) -> NDArray[_ScalarT]: ... +@overload +def asarray( + a: Any, + dtype: DTypeLike | None = ..., + order: _OrderKACF = ..., + *, + device: L["cpu"] | None = ..., + copy: bool | None = ..., + like: _SupportsArrayFunc | None = ..., +) -> NDArray[Any]: ... + +@overload +def asanyarray( + a: _ArrayT, # Preserve subclass-information + dtype: None = None, + order: _OrderKACF = ..., + *, + device: L["cpu"] | None = ..., + copy: bool | None = ..., + like: _SupportsArrayFunc | None = ..., +) -> _ArrayT: ... +@overload +def asanyarray( + a: _ArrayLike[_ScalarT], + dtype: None = None, + order: _OrderKACF = ..., + *, + device: L["cpu"] | None = ..., + copy: bool | None = ..., + like: _SupportsArrayFunc | None = ..., +) -> NDArray[_ScalarT]: ... +@overload +def asanyarray( + a: Any, + dtype: _DTypeLike[_ScalarT], + order: _OrderKACF = ..., + *, + device: L["cpu"] | None = ..., + copy: bool | None = ..., + like: _SupportsArrayFunc | None = ..., +) -> NDArray[_ScalarT]: ... +@overload +def asanyarray( + a: Any, + dtype: DTypeLike | None = ..., + order: _OrderKACF = ..., + *, + device: L["cpu"] | None = ..., + copy: bool | None = ..., + like: _SupportsArrayFunc | None = ..., +) -> NDArray[Any]: ... + +@overload +def ascontiguousarray( + a: _ArrayLike[_ScalarT], + dtype: None = None, + *, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[_ScalarT]: ... +@overload +def ascontiguousarray( + a: Any, + dtype: _DTypeLike[_ScalarT], + *, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[_ScalarT]: ... +@overload +def ascontiguousarray( + a: Any, + dtype: DTypeLike | None = ..., + *, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[Any]: ... + +@overload +def asfortranarray( + a: _ArrayLike[_ScalarT], + dtype: None = None, + *, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[_ScalarT]: ... +@overload +def asfortranarray( + a: Any, + dtype: _DTypeLike[_ScalarT], + *, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[_ScalarT]: ... +@overload +def asfortranarray( + a: Any, + dtype: DTypeLike | None = ..., + *, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[Any]: ... + +def promote_types(__type1: DTypeLike, __type2: DTypeLike) -> dtype: ... + +# `sep` is a de facto mandatory argument, as its default value is deprecated +@overload +def fromstring( + string: str | bytes, + dtype: None = None, + count: SupportsIndex = ..., + *, + sep: str, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[float64]: ... +@overload +def fromstring( + string: str | bytes, + dtype: _DTypeLike[_ScalarT], + count: SupportsIndex = ..., + *, + sep: str, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[_ScalarT]: ... +@overload +def fromstring( + string: str | bytes, + dtype: DTypeLike | None = ..., + count: SupportsIndex = ..., + *, + sep: str, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[Any]: ... + +@overload +def frompyfunc( # type: ignore[overload-overlap] + func: Callable[[Any], _ReturnType], /, + nin: L[1], + nout: L[1], + *, + identity: None = None, +) -> _PyFunc_Nin1_Nout1[_ReturnType, None]: ... +@overload +def frompyfunc( # type: ignore[overload-overlap] + func: Callable[[Any], _ReturnType], /, + nin: L[1], + nout: L[1], + *, + identity: _IDType, +) -> _PyFunc_Nin1_Nout1[_ReturnType, _IDType]: ... +@overload +def frompyfunc( # type: ignore[overload-overlap] + func: Callable[[Any, Any], _ReturnType], /, + nin: L[2], + nout: L[1], + *, + identity: None = None, +) -> _PyFunc_Nin2_Nout1[_ReturnType, None]: ... +@overload +def frompyfunc( # type: ignore[overload-overlap] + func: Callable[[Any, Any], _ReturnType], /, + nin: L[2], + nout: L[1], + *, + identity: _IDType, +) -> _PyFunc_Nin2_Nout1[_ReturnType, _IDType]: ... +@overload +def frompyfunc( # type: ignore[overload-overlap] + func: Callable[..., _ReturnType], /, + nin: _Nin, + nout: L[1], + *, + identity: None = None, +) -> _PyFunc_Nin3P_Nout1[_ReturnType, None, _Nin]: ... +@overload +def frompyfunc( # type: ignore[overload-overlap] + func: Callable[..., _ReturnType], /, + nin: _Nin, + nout: L[1], + *, + identity: _IDType, +) -> _PyFunc_Nin3P_Nout1[_ReturnType, _IDType, _Nin]: ... +@overload +def frompyfunc( + func: Callable[..., _2PTuple[_ReturnType]], /, + nin: _Nin, + nout: _Nout, + *, + identity: None = None, +) -> _PyFunc_Nin1P_Nout2P[_ReturnType, None, _Nin, _Nout]: ... +@overload +def frompyfunc( + func: Callable[..., _2PTuple[_ReturnType]], /, + nin: _Nin, + nout: _Nout, + *, + identity: _IDType, +) -> _PyFunc_Nin1P_Nout2P[_ReturnType, _IDType, _Nin, _Nout]: ... +@overload +def frompyfunc( + func: Callable[..., Any], /, + nin: SupportsIndex, + nout: SupportsIndex, + *, + identity: object | None = ..., +) -> ufunc: ... + +@overload +def fromfile( + file: StrOrBytesPath | _SupportsFileMethods, + dtype: None = None, + count: SupportsIndex = ..., + sep: str = ..., + offset: SupportsIndex = ..., + *, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[float64]: ... +@overload +def fromfile( + file: StrOrBytesPath | _SupportsFileMethods, + dtype: _DTypeLike[_ScalarT], + count: SupportsIndex = ..., + sep: str = ..., + offset: SupportsIndex = ..., + *, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[_ScalarT]: ... +@overload +def fromfile( + file: StrOrBytesPath | _SupportsFileMethods, + dtype: DTypeLike | None = ..., + count: SupportsIndex = ..., + sep: str = ..., + offset: SupportsIndex = ..., + *, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[Any]: ... + +@overload +def fromiter( + iter: Iterable[Any], + dtype: _DTypeLike[_ScalarT], + count: SupportsIndex = ..., + *, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[_ScalarT]: ... +@overload +def fromiter( + iter: Iterable[Any], + dtype: DTypeLike | None, + count: SupportsIndex = ..., + *, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[Any]: ... + +@overload +def frombuffer( + buffer: _SupportsBuffer, + dtype: None = None, + count: SupportsIndex = ..., + offset: SupportsIndex = ..., + *, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[float64]: ... +@overload +def frombuffer( + buffer: _SupportsBuffer, + dtype: _DTypeLike[_ScalarT], + count: SupportsIndex = ..., + offset: SupportsIndex = ..., + *, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[_ScalarT]: ... +@overload +def frombuffer( + buffer: _SupportsBuffer, + dtype: DTypeLike | None = ..., + count: SupportsIndex = ..., + offset: SupportsIndex = ..., + *, + like: _SupportsArrayFunc | None = ..., +) -> NDArray[Any]: ... + +_ArangeScalar: TypeAlias = np.integer | np.floating | np.datetime64 | np.timedelta64 +_ArangeScalarT = TypeVar("_ArangeScalarT", bound=_ArangeScalar) + +# keep in sync with ma.core.arange +# NOTE: The `float64 | Any` return types needed to avoid incompatible overlapping overloads +@overload # dtype= +def arange( + start_or_stop: _ArangeScalar | float, + /, + stop: _ArangeScalar | float | None = None, + step: _ArangeScalar | float | None = 1, + *, + dtype: _DTypeLike[_ArangeScalarT], + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array1D[_ArangeScalarT]: ... +@overload # (int-like, int-like?, int-like?) +def arange( + start_or_stop: _IntLike_co, + /, + stop: _IntLike_co | None = None, + step: _IntLike_co | None = 1, + *, + dtype: type[int] | _DTypeLike[np.int_] | None = None, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array1D[np.int_]: ... +@overload # (float, float-like?, float-like?) +def arange( + start_or_stop: float | floating, + /, + stop: _FloatLike_co | None = None, + step: _FloatLike_co | None = 1, + *, + dtype: type[float] | _DTypeLike[np.float64] | None = None, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array1D[np.float64 | Any]: ... +@overload # (float-like, float, float-like?) +def arange( + start_or_stop: _FloatLike_co, + /, + stop: float | floating, + step: _FloatLike_co | None = 1, + *, + dtype: type[float] | _DTypeLike[np.float64] | None = None, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array1D[np.float64 | Any]: ... +@overload # (timedelta, timedelta-like?, timedelta-like?) +def arange( + start_or_stop: np.timedelta64, + /, + stop: _TD64Like_co | None = None, + step: _TD64Like_co | None = 1, + *, + dtype: _DTypeLike[np.timedelta64] | None = None, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array1D[np.timedelta64[Incomplete]]: ... +@overload # (timedelta-like, timedelta, timedelta-like?) +def arange( + start_or_stop: _TD64Like_co, + /, + stop: np.timedelta64, + step: _TD64Like_co | None = 1, + *, + dtype: _DTypeLike[np.timedelta64] | None = None, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array1D[np.timedelta64[Incomplete]]: ... +@overload # (datetime, datetime, timedelta-like) (requires both start and stop) +def arange( + start_or_stop: np.datetime64, + /, + stop: np.datetime64, + step: _TD64Like_co | None = 1, + *, + dtype: _DTypeLike[np.datetime64] | None = None, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array1D[np.datetime64[Incomplete]]: ... +@overload # (str, str, timedelta-like, dtype=dt64-like) (requires both start and stop) +def arange( + start_or_stop: str, + /, + stop: str, + step: _TD64Like_co | None = 1, + *, + dtype: _DTypeLike[np.datetime64] | _DT64Codes, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array1D[np.datetime64[Incomplete]]: ... +@overload # dtype= +def arange( + start_or_stop: _ArangeScalar | float | str, + /, + stop: _ArangeScalar | float | str | None = None, + step: _ArangeScalar | float | None = 1, + *, + dtype: DTypeLike | None = None, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array1D[Incomplete]: ... + +# +def datetime_data(dtype: str | _DTypeLike[datetime64 | timedelta64], /) -> tuple[str, int]: ... + +# The datetime functions perform unsafe casts to `datetime64[D]`, +# so a lot of different argument types are allowed here + +_ToDates: TypeAlias = dt.date | _NestedSequence[dt.date] +_ToDeltas: TypeAlias = dt.timedelta | _NestedSequence[dt.timedelta] + +@overload +def busday_count( + begindates: _ScalarLike_co | dt.date, + enddates: _ScalarLike_co | dt.date, + weekmask: ArrayLike = "1111100", + holidays: ArrayLike | _ToDates = (), + busdaycal: busdaycalendar | None = None, + out: None = None, +) -> int_: ... +@overload +def busday_count( + begindates: ArrayLike | _ToDates, + enddates: ArrayLike | _ToDates, + weekmask: ArrayLike = "1111100", + holidays: ArrayLike | _ToDates = (), + busdaycal: busdaycalendar | None = None, + out: None = None, +) -> NDArray[int_]: ... +@overload +def busday_count( + begindates: ArrayLike | _ToDates, + enddates: ArrayLike | _ToDates, + weekmask: ArrayLike = "1111100", + holidays: ArrayLike | _ToDates = (), + busdaycal: busdaycalendar | None = None, + *, + out: _ArrayT, +) -> _ArrayT: ... +@overload +def busday_count( + begindates: ArrayLike | _ToDates, + enddates: ArrayLike | _ToDates, + weekmask: ArrayLike, + holidays: ArrayLike | _ToDates, + busdaycal: busdaycalendar | None, + out: _ArrayT, +) -> _ArrayT: ... + +# `roll="raise"` is (more or less?) equivalent to `casting="safe"` +@overload +def busday_offset( + dates: datetime64 | dt.date, + offsets: _TD64Like_co | dt.timedelta, + roll: L["raise"] = "raise", + weekmask: ArrayLike = "1111100", + holidays: ArrayLike | _ToDates | None = None, + busdaycal: busdaycalendar | None = None, + out: None = None, +) -> datetime64: ... +@overload +def busday_offset( + dates: _ArrayLike[datetime64] | _NestedSequence[dt.date], + offsets: _ArrayLikeTD64_co | _ToDeltas, + roll: L["raise"] = "raise", + weekmask: ArrayLike = "1111100", + holidays: ArrayLike | _ToDates | None = None, + busdaycal: busdaycalendar | None = None, + out: None = None, +) -> NDArray[datetime64]: ... +@overload +def busday_offset( + dates: _ArrayLike[datetime64] | _ToDates, + offsets: _ArrayLikeTD64_co | _ToDeltas, + roll: L["raise"] = "raise", + weekmask: ArrayLike = "1111100", + holidays: ArrayLike | _ToDates | None = None, + busdaycal: busdaycalendar | None = None, + *, + out: _ArrayT, +) -> _ArrayT: ... +@overload +def busday_offset( + dates: _ArrayLike[datetime64] | _ToDates, + offsets: _ArrayLikeTD64_co | _ToDeltas, + roll: L["raise"], + weekmask: ArrayLike, + holidays: ArrayLike | _ToDates | None, + busdaycal: busdaycalendar | None, + out: _ArrayT, +) -> _ArrayT: ... +@overload +def busday_offset( + dates: _ScalarLike_co | dt.date, + offsets: _ScalarLike_co | dt.timedelta, + roll: _RollKind, + weekmask: ArrayLike = "1111100", + holidays: ArrayLike | _ToDates | None = None, + busdaycal: busdaycalendar | None = None, + out: None = None, +) -> datetime64: ... +@overload +def busday_offset( + dates: ArrayLike | _NestedSequence[dt.date], + offsets: ArrayLike | _ToDeltas, + roll: _RollKind, + weekmask: ArrayLike = "1111100", + holidays: ArrayLike | _ToDates | None = None, + busdaycal: busdaycalendar | None = None, + out: None = None, +) -> NDArray[datetime64]: ... +@overload +def busday_offset( + dates: ArrayLike | _ToDates, + offsets: ArrayLike | _ToDeltas, + roll: _RollKind, + weekmask: ArrayLike = "1111100", + holidays: ArrayLike | _ToDates | None = None, + busdaycal: busdaycalendar | None = None, + *, + out: _ArrayT, +) -> _ArrayT: ... +@overload +def busday_offset( + dates: ArrayLike | _ToDates, + offsets: ArrayLike | _ToDeltas, + roll: _RollKind, + weekmask: ArrayLike, + holidays: ArrayLike | _ToDates | None, + busdaycal: busdaycalendar | None, + out: _ArrayT, +) -> _ArrayT: ... + +@overload +def is_busday( + dates: _ScalarLike_co | dt.date, + weekmask: ArrayLike = "1111100", + holidays: ArrayLike | _ToDates | None = None, + busdaycal: busdaycalendar | None = None, + out: None = None, +) -> np.bool: ... +@overload +def is_busday( + dates: ArrayLike | _NestedSequence[dt.date], + weekmask: ArrayLike = "1111100", + holidays: ArrayLike | _ToDates | None = None, + busdaycal: busdaycalendar | None = None, + out: None = None, +) -> NDArray[np.bool]: ... +@overload +def is_busday( + dates: ArrayLike | _ToDates, + weekmask: ArrayLike = "1111100", + holidays: ArrayLike | _ToDates | None = None, + busdaycal: busdaycalendar | None = None, + *, + out: _ArrayT, +) -> _ArrayT: ... +@overload +def is_busday( + dates: ArrayLike | _ToDates, + weekmask: ArrayLike, + holidays: ArrayLike | _ToDates | None, + busdaycal: busdaycalendar | None, + out: _ArrayT, +) -> _ArrayT: ... + +_TimezoneContext: TypeAlias = L["naive", "UTC", "local"] | dt.tzinfo + +@overload +def datetime_as_string( + arr: datetime64 | dt.date, + unit: L["auto"] | _UnitKind | None = None, + timezone: _TimezoneContext = "naive", + casting: _CastingKind = "same_kind", +) -> str_: ... +@overload +def datetime_as_string( + arr: _ArrayLikeDT64_co | _NestedSequence[dt.date], + unit: L["auto"] | _UnitKind | None = None, + timezone: _TimezoneContext = "naive", + casting: _CastingKind = "same_kind", +) -> NDArray[str_]: ... + +@overload +def compare_chararrays( + a1: _ArrayLikeStr_co, + a2: _ArrayLikeStr_co, + cmp: L["<", "<=", "==", ">=", ">", "!="], + rstrip: bool, +) -> NDArray[np.bool]: ... +@overload +def compare_chararrays( + a1: _ArrayLikeBytes_co, + a2: _ArrayLikeBytes_co, + cmp: L["<", "<=", "==", ">=", ">", "!="], + rstrip: bool, +) -> NDArray[np.bool]: ... + +def add_docstring(obj: Callable[..., Any], docstring: str, /) -> None: ... + +_GetItemKeys: TypeAlias = L[ + "C", "CONTIGUOUS", "C_CONTIGUOUS", + "F", "FORTRAN", "F_CONTIGUOUS", + "W", "WRITEABLE", + "B", "BEHAVED", + "O", "OWNDATA", + "A", "ALIGNED", + "X", "WRITEBACKIFCOPY", + "CA", "CARRAY", + "FA", "FARRAY", + "FNC", + "FORC", +] +_SetItemKeys: TypeAlias = L[ + "A", "ALIGNED", + "W", "WRITEABLE", + "X", "WRITEBACKIFCOPY", +] + +@final +class flagsobj: + __hash__: ClassVar[None] # type: ignore[assignment] + aligned: bool + # NOTE: deprecated + # updateifcopy: bool + writeable: bool + writebackifcopy: bool + @property + def behaved(self) -> bool: ... + @property + def c_contiguous(self) -> bool: ... + @property + def carray(self) -> bool: ... + @property + def contiguous(self) -> bool: ... + @property + def f_contiguous(self) -> bool: ... + @property + def farray(self) -> bool: ... + @property + def fnc(self) -> bool: ... + @property + def forc(self) -> bool: ... + @property + def fortran(self) -> bool: ... + @property + def num(self) -> int: ... + @property + def owndata(self) -> bool: ... + def __getitem__(self, key: _GetItemKeys) -> bool: ... + def __setitem__(self, key: _SetItemKeys, value: bool) -> None: ... + +def nested_iters( + op: ArrayLike | Sequence[ArrayLike], + axes: Sequence[Sequence[SupportsIndex]], + flags: Sequence[_NDIterFlagsKind] | None = ..., + op_flags: Sequence[Sequence[_NDIterFlagsOp]] | None = ..., + op_dtypes: DTypeLike | Sequence[DTypeLike | None] | None = ..., + order: _OrderKACF = ..., + casting: _CastingKind = ..., + buffersize: SupportsIndex = ..., +) -> tuple[nditer, ...]: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/numeric.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/numeric.py new file mode 100644 index 0000000000000000000000000000000000000000..da382b4e8bd2893443eecf77654af3d8b4792b7f --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/numeric.py @@ -0,0 +1,2771 @@ +import builtins +import functools +import itertools +import math +import numbers +import operator +import sys +import warnings + +import numpy as np +from numpy.exceptions import AxisError + +from . import multiarray, numerictypes, numerictypes as nt, overrides, shape_base, umath +from ._ufunc_config import errstate +from .multiarray import ( # noqa: F401 + ALLOW_THREADS, + BUFSIZE, + CLIP, + MAXDIMS, + MAY_SHARE_BOUNDS, + MAY_SHARE_EXACT, + RAISE, + WRAP, + arange, + array, + asanyarray, + asarray, + ascontiguousarray, + asfortranarray, + broadcast, + can_cast, + concatenate, + copyto, + dot, + dtype, + empty, + empty_like, + flatiter, + from_dlpack, + frombuffer, + fromfile, + fromiter, + fromstring, + inner, + lexsort, + matmul, + may_share_memory, + min_scalar_type, + ndarray, + nditer, + nested_iters, + normalize_axis_index, + promote_types, + putmask, + result_type, + shares_memory, + vdot, + vecdot, + where, + zeros, +) +from .overrides import finalize_array_function_like, set_module +from .umath import NAN, PINF, invert, multiply, sin + +bitwise_not = invert +ufunc = type(sin) +newaxis = None + +array_function_dispatch = functools.partial( + overrides.array_function_dispatch, module='numpy') + + +__all__ = [ + 'newaxis', 'ndarray', 'flatiter', 'nditer', 'nested_iters', 'ufunc', + 'arange', 'array', 'asarray', 'asanyarray', 'ascontiguousarray', + 'asfortranarray', 'zeros', 'count_nonzero', 'empty', 'broadcast', 'dtype', + 'fromstring', 'fromfile', 'frombuffer', 'from_dlpack', 'where', + 'argwhere', 'copyto', 'concatenate', 'lexsort', 'astype', + 'can_cast', 'promote_types', 'min_scalar_type', + 'result_type', 'isfortran', 'empty_like', 'zeros_like', 'ones_like', + 'correlate', 'convolve', 'inner', 'dot', 'outer', 'vdot', 'roll', + 'rollaxis', 'moveaxis', 'cross', 'tensordot', 'little_endian', + 'fromiter', 'array_equal', 'array_equiv', 'indices', 'fromfunction', + 'isclose', 'isscalar', 'binary_repr', 'base_repr', 'ones', + 'identity', 'allclose', 'putmask', + 'flatnonzero', 'inf', 'nan', 'False_', 'True_', 'bitwise_not', + 'full', 'full_like', 'matmul', 'vecdot', 'shares_memory', + 'may_share_memory'] + + +def _zeros_like_dispatcher( + a, dtype=None, order=None, subok=None, shape=None, *, device=None +): + return (a,) + + +@array_function_dispatch(_zeros_like_dispatcher) +def zeros_like( + a, dtype=None, order='K', subok=True, shape=None, *, device=None +): + """ + Return an array of zeros with the same shape and type as a given array. + + Parameters + ---------- + a : array_like + The shape and data-type of `a` define these same attributes of + the returned array. + dtype : data-type, optional + Overrides the data type of the result. + order : {'C', 'F', 'A', or 'K'}, optional + Overrides the memory layout of the result. 'C' means C-order, + 'F' means F-order, 'A' means 'F' if `a` is Fortran contiguous, + 'C' otherwise. 'K' means match the layout of `a` as closely + as possible. + subok : bool, optional. + If True, then the newly created array will use the sub-class + type of `a`, otherwise it will be a base-class array. Defaults + to True. + shape : int or sequence of ints, optional. + Overrides the shape of the result. If order='K' and the number of + dimensions is unchanged, will try to keep order, otherwise, + order='C' is implied. + device : str, optional + The device on which to place the created array. Default: None. + For Array-API interoperability only, so must be ``"cpu"`` if passed. + + .. versionadded:: 2.0.0 + + Returns + ------- + out : ndarray + Array of zeros with the same shape and type as `a`. + + See Also + -------- + empty_like : Return an empty array with shape and type of input. + ones_like : Return an array of ones with shape and type of input. + full_like : Return a new array with shape of input filled with value. + zeros : Return a new array setting values to zero. + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(6) + >>> x = x.reshape((2, 3)) + >>> x + array([[0, 1, 2], + [3, 4, 5]]) + >>> np.zeros_like(x) + array([[0, 0, 0], + [0, 0, 0]]) + + >>> y = np.arange(3, dtype=float) + >>> y + array([0., 1., 2.]) + >>> np.zeros_like(y) + array([0., 0., 0.]) + + """ + res = empty_like( + a, dtype=dtype, order=order, subok=subok, shape=shape, device=device + ) + # needed instead of a 0 to get same result as zeros for string dtypes + z = zeros(1, dtype=res.dtype) + multiarray.copyto(res, z, casting='unsafe') + return res + + +@finalize_array_function_like +@set_module('numpy') +def ones(shape, dtype=None, order='C', *, device=None, like=None): + """ + Return a new array of given shape and type, filled with ones. + + Parameters + ---------- + shape : int or sequence of ints + Shape of the new array, e.g., ``(2, 3)`` or ``2``. + dtype : data-type, optional + The desired data-type for the array, e.g., `numpy.int8`. Default is + `numpy.float64`. + order : {'C', 'F'}, optional, default: C + Whether to store multi-dimensional data in row-major + (C-style) or column-major (Fortran-style) order in + memory. + device : str, optional + The device on which to place the created array. Default: None. + For Array-API interoperability only, so must be ``"cpu"`` if passed. + + .. versionadded:: 2.0.0 + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + Returns + ------- + out : ndarray + Array of ones with the given shape, dtype, and order. + + See Also + -------- + ones_like : Return an array of ones with shape and type of input. + empty : Return a new uninitialized array. + zeros : Return a new array setting values to zero. + full : Return a new array of given shape filled with value. + + Examples + -------- + >>> import numpy as np + >>> np.ones(5) + array([1., 1., 1., 1., 1.]) + + >>> np.ones((5,), dtype=int) + array([1, 1, 1, 1, 1]) + + >>> np.ones((2, 1)) + array([[1.], + [1.]]) + + >>> s = (2,2) + >>> np.ones(s) + array([[1., 1.], + [1., 1.]]) + + """ + if like is not None: + return _ones_with_like( + like, shape, dtype=dtype, order=order, device=device + ) + + a = empty(shape, dtype, order, device=device) + multiarray.copyto(a, 1, casting='unsafe') + return a + + +_ones_with_like = array_function_dispatch()(ones) + + +def _ones_like_dispatcher( + a, dtype=None, order=None, subok=None, shape=None, *, device=None +): + return (a,) + + +@array_function_dispatch(_ones_like_dispatcher) +def ones_like( + a, dtype=None, order='K', subok=True, shape=None, *, device=None +): + """ + Return an array of ones with the same shape and type as a given array. + + Parameters + ---------- + a : array_like + The shape and data-type of `a` define these same attributes of + the returned array. + dtype : data-type, optional + Overrides the data type of the result. + order : {'C', 'F', 'A', or 'K'}, optional + Overrides the memory layout of the result. 'C' means C-order, + 'F' means F-order, 'A' means 'F' if `a` is Fortran contiguous, + 'C' otherwise. 'K' means match the layout of `a` as closely + as possible. + subok : bool, optional. + If True, then the newly created array will use the sub-class + type of `a`, otherwise it will be a base-class array. Defaults + to True. + shape : int or sequence of ints, optional. + Overrides the shape of the result. If order='K' and the number of + dimensions is unchanged, will try to keep order, otherwise, + order='C' is implied. + device : str, optional + The device on which to place the created array. Default: None. + For Array-API interoperability only, so must be ``"cpu"`` if passed. + + .. versionadded:: 2.0.0 + + Returns + ------- + out : ndarray + Array of ones with the same shape and type as `a`. + + See Also + -------- + empty_like : Return an empty array with shape and type of input. + zeros_like : Return an array of zeros with shape and type of input. + full_like : Return a new array with shape of input filled with value. + ones : Return a new array setting values to one. + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(6) + >>> x = x.reshape((2, 3)) + >>> x + array([[0, 1, 2], + [3, 4, 5]]) + >>> np.ones_like(x) + array([[1, 1, 1], + [1, 1, 1]]) + + >>> y = np.arange(3, dtype=float) + >>> y + array([0., 1., 2.]) + >>> np.ones_like(y) + array([1., 1., 1.]) + + """ + res = empty_like( + a, dtype=dtype, order=order, subok=subok, shape=shape, device=device + ) + multiarray.copyto(res, 1, casting='unsafe') + return res + + +def _full_dispatcher( + shape, fill_value, dtype=None, order=None, *, device=None, like=None +): + return (like,) + + +@finalize_array_function_like +@set_module('numpy') +def full(shape, fill_value, dtype=None, order='C', *, device=None, like=None): + """ + Return a new array of given shape and type, filled with `fill_value`. + + Parameters + ---------- + shape : int or sequence of ints + Shape of the new array, e.g., ``(2, 3)`` or ``2``. + fill_value : scalar or array_like + Fill value. + dtype : data-type, optional + The desired data-type for the array The default, None, means + ``np.array(fill_value).dtype``. + order : {'C', 'F'}, optional + Whether to store multidimensional data in C- or Fortran-contiguous + (row- or column-wise) order in memory. + device : str, optional + The device on which to place the created array. Default: None. + For Array-API interoperability only, so must be ``"cpu"`` if passed. + + .. versionadded:: 2.0.0 + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + Returns + ------- + out : ndarray + Array of `fill_value` with the given shape, dtype, and order. + + See Also + -------- + full_like : Return a new array with shape of input filled with value. + empty : Return a new uninitialized array. + ones : Return a new array setting values to one. + zeros : Return a new array setting values to zero. + + Examples + -------- + >>> import numpy as np + >>> np.full((2, 2), np.inf) + array([[inf, inf], + [inf, inf]]) + >>> np.full((2, 2), 10) + array([[10, 10], + [10, 10]]) + + >>> np.full((2, 2), [1, 2]) + array([[1, 2], + [1, 2]]) + + """ + if like is not None: + return _full_with_like( + like, shape, fill_value, dtype=dtype, order=order, device=device + ) + + if dtype is None: + fill_value = asarray(fill_value) + dtype = fill_value.dtype + a = empty(shape, dtype, order, device=device) + multiarray.copyto(a, fill_value, casting='unsafe') + return a + + +_full_with_like = array_function_dispatch()(full) + + +def _full_like_dispatcher( + a, fill_value, dtype=None, order=None, subok=None, shape=None, + *, device=None +): + return (a,) + + +@array_function_dispatch(_full_like_dispatcher) +def full_like( + a, fill_value, dtype=None, order='K', subok=True, shape=None, + *, device=None +): + """ + Return a full array with the same shape and type as a given array. + + Parameters + ---------- + a : array_like + The shape and data-type of `a` define these same attributes of + the returned array. + fill_value : array_like + Fill value. + dtype : data-type, optional + Overrides the data type of the result. + order : {'C', 'F', 'A', or 'K'}, optional + Overrides the memory layout of the result. 'C' means C-order, + 'F' means F-order, 'A' means 'F' if `a` is Fortran contiguous, + 'C' otherwise. 'K' means match the layout of `a` as closely + as possible. + subok : bool, optional. + If True, then the newly created array will use the sub-class + type of `a`, otherwise it will be a base-class array. Defaults + to True. + shape : int or sequence of ints, optional. + Overrides the shape of the result. If order='K' and the number of + dimensions is unchanged, will try to keep order, otherwise, + order='C' is implied. + device : str, optional + The device on which to place the created array. Default: None. + For Array-API interoperability only, so must be ``"cpu"`` if passed. + + .. versionadded:: 2.0.0 + + Returns + ------- + out : ndarray + Array of `fill_value` with the same shape and type as `a`. + + See Also + -------- + empty_like : Return an empty array with shape and type of input. + ones_like : Return an array of ones with shape and type of input. + zeros_like : Return an array of zeros with shape and type of input. + full : Return a new array of given shape filled with value. + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(6, dtype=int) + >>> np.full_like(x, 1) + array([1, 1, 1, 1, 1, 1]) + >>> np.full_like(x, 0.1) + array([0, 0, 0, 0, 0, 0]) + >>> np.full_like(x, 0.1, dtype=np.double) + array([0.1, 0.1, 0.1, 0.1, 0.1, 0.1]) + >>> np.full_like(x, np.nan, dtype=np.double) + array([nan, nan, nan, nan, nan, nan]) + + >>> y = np.arange(6, dtype=np.double) + >>> np.full_like(y, 0.1) + array([0.1, 0.1, 0.1, 0.1, 0.1, 0.1]) + + >>> y = np.zeros([2, 2, 3], dtype=int) + >>> np.full_like(y, [0, 0, 255]) + array([[[ 0, 0, 255], + [ 0, 0, 255]], + [[ 0, 0, 255], + [ 0, 0, 255]]]) + """ + res = empty_like( + a, dtype=dtype, order=order, subok=subok, shape=shape, device=device + ) + multiarray.copyto(res, fill_value, casting='unsafe') + return res + + +def _count_nonzero_dispatcher(a, axis=None, *, keepdims=None): + return (a,) + + +@array_function_dispatch(_count_nonzero_dispatcher) +def count_nonzero(a, axis=None, *, keepdims=False): + """ + Counts the number of non-zero values in the array ``a``. + + The word "non-zero" is in reference to the Python 2.x + built-in method ``__nonzero__()`` (renamed ``__bool__()`` + in Python 3.x) of Python objects that tests an object's + "truthfulness". For example, any number is considered + truthful if it is nonzero, whereas any string is considered + truthful if it is not the empty string. Thus, this function + (recursively) counts how many elements in ``a`` (and in + sub-arrays thereof) have their ``__nonzero__()`` or ``__bool__()`` + method evaluated to ``True``. + + Parameters + ---------- + a : array_like + The array for which to count non-zeros. + axis : int or tuple, optional + Axis or tuple of axes along which to count non-zeros. + Default is None, meaning that non-zeros will be counted + along a flattened version of ``a``. + keepdims : bool, optional + If this is set to True, the axes that are counted are left + in the result as dimensions with size one. With this option, + the result will broadcast correctly against the input array. + + Returns + ------- + count : int or array of int + Number of non-zero values in the array along a given axis. + Otherwise, the total number of non-zero values in the array + is returned. + + See Also + -------- + nonzero : Return the coordinates of all the non-zero values. + + Examples + -------- + >>> import numpy as np + >>> np.count_nonzero(np.eye(4)) + np.int64(4) + >>> a = np.array([[0, 1, 7, 0], + ... [3, 0, 2, 19]]) + >>> np.count_nonzero(a) + np.int64(5) + >>> np.count_nonzero(a, axis=0) + array([1, 1, 2, 1]) + >>> np.count_nonzero(a, axis=1) + array([2, 3]) + >>> np.count_nonzero(a, axis=1, keepdims=True) + array([[2], + [3]]) + """ + if axis is None and not keepdims: + return multiarray.count_nonzero(a) + + a = asanyarray(a) + + # TODO: this works around .astype(bool) not working properly (gh-9847) + if np.issubdtype(a.dtype, np.character): + a_bool = a != a.dtype.type() + else: + a_bool = a.astype(np.bool, copy=False) + + return a_bool.sum(axis=axis, dtype=np.intp, keepdims=keepdims) + + +@set_module('numpy') +def isfortran(a): + """ + Check if the array is Fortran contiguous but *not* C contiguous. + + This function is obsolete. If you only want to check if an array is Fortran + contiguous use ``a.flags.f_contiguous`` instead. + + Parameters + ---------- + a : ndarray + Input array. + + Returns + ------- + isfortran : bool + Returns True if the array is Fortran contiguous but *not* C contiguous. + + + Examples + -------- + + np.array allows to specify whether the array is written in C-contiguous + order (last index varies the fastest), or FORTRAN-contiguous order in + memory (first index varies the fastest). + + >>> import numpy as np + >>> a = np.array([[1, 2, 3], [4, 5, 6]], order='C') + >>> a + array([[1, 2, 3], + [4, 5, 6]]) + >>> np.isfortran(a) + False + + >>> b = np.array([[1, 2, 3], [4, 5, 6]], order='F') + >>> b + array([[1, 2, 3], + [4, 5, 6]]) + >>> np.isfortran(b) + True + + + The transpose of a C-ordered array is a FORTRAN-ordered array. + + >>> a = np.array([[1, 2, 3], [4, 5, 6]], order='C') + >>> a + array([[1, 2, 3], + [4, 5, 6]]) + >>> np.isfortran(a) + False + >>> b = a.T + >>> b + array([[1, 4], + [2, 5], + [3, 6]]) + >>> np.isfortran(b) + True + + C-ordered arrays evaluate as False even if they are also FORTRAN-ordered. + + >>> np.isfortran(np.array([1, 2], order='F')) + False + + """ + return a.flags.fnc + + +def _argwhere_dispatcher(a): + return (a,) + + +@array_function_dispatch(_argwhere_dispatcher) +def argwhere(a): + """ + Find the indices of array elements that are non-zero, grouped by element. + + Parameters + ---------- + a : array_like + Input data. + + Returns + ------- + index_array : (N, a.ndim) ndarray + Indices of elements that are non-zero. Indices are grouped by element. + This array will have shape ``(N, a.ndim)`` where ``N`` is the number of + non-zero items. + + See Also + -------- + where, nonzero + + Notes + ----- + ``np.argwhere(a)`` is almost the same as ``np.transpose(np.nonzero(a))``, + but produces a result of the correct shape for a 0D array. + + The output of ``argwhere`` is not suitable for indexing arrays. + For this purpose use ``nonzero(a)`` instead. + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(6).reshape(2,3) + >>> x + array([[0, 1, 2], + [3, 4, 5]]) + >>> np.argwhere(x>1) + array([[0, 2], + [1, 0], + [1, 1], + [1, 2]]) + + """ + # nonzero does not behave well on 0d, so promote to 1d + if np.ndim(a) == 0: + a = shape_base.atleast_1d(a) + # then remove the added dimension + return argwhere(a)[:, :0] + return transpose(nonzero(a)) + + +def _flatnonzero_dispatcher(a): + return (a,) + + +@array_function_dispatch(_flatnonzero_dispatcher) +def flatnonzero(a): + """ + Return indices that are non-zero in the flattened version of a. + + This is equivalent to ``np.nonzero(np.ravel(a))[0]``. + + Parameters + ---------- + a : array_like + Input data. + + Returns + ------- + res : ndarray + Output array, containing the indices of the elements of ``a.ravel()`` + that are non-zero. + + See Also + -------- + nonzero : Return the indices of the non-zero elements of the input array. + ravel : Return a 1-D array containing the elements of the input array. + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(-2, 3) + >>> x + array([-2, -1, 0, 1, 2]) + >>> np.flatnonzero(x) + array([0, 1, 3, 4]) + + Use the indices of the non-zero elements as an index array to extract + these elements: + + >>> x.ravel()[np.flatnonzero(x)] + array([-2, -1, 1, 2]) + + """ + return np.nonzero(np.ravel(a))[0] + + +def _correlate_dispatcher(a, v, mode=None): + return (a, v) + + +@array_function_dispatch(_correlate_dispatcher) +def correlate(a, v, mode='valid'): + r""" + Cross-correlation of two 1-dimensional sequences. + + This function computes the correlation as generally defined in signal + processing texts [1]_: + + .. math:: c_k = \sum_n a_{n+k} \cdot \overline{v}_n + + with a and v sequences being zero-padded where necessary and + :math:`\overline v` denoting complex conjugation. + + Parameters + ---------- + a, v : array_like + Input sequences. + mode : {'valid', 'same', 'full'}, optional + Refer to the `convolve` docstring. Note that the default + is 'valid', unlike `convolve`, which uses 'full'. + + Returns + ------- + out : ndarray + Discrete cross-correlation of `a` and `v`. + + See Also + -------- + convolve : Discrete, linear convolution of two one-dimensional sequences. + scipy.signal.correlate : uses FFT which has superior performance + on large arrays. + + Notes + ----- + The definition of correlation above is not unique and sometimes + correlation may be defined differently. Another common definition is [1]_: + + .. math:: c'_k = \sum_n a_{n} \cdot \overline{v_{n+k}} + + which is related to :math:`c_k` by :math:`c'_k = c_{-k}`. + + `numpy.correlate` may perform slowly in large arrays (i.e. n = 1e5) + because it does not use the FFT to compute the convolution; in that case, + `scipy.signal.correlate` might be preferable. + + References + ---------- + .. [1] Wikipedia, "Cross-correlation", + https://en.wikipedia.org/wiki/Cross-correlation + + Examples + -------- + >>> import numpy as np + >>> np.correlate([1, 2, 3], [0, 1, 0.5]) + array([3.5]) + >>> np.correlate([1, 2, 3], [0, 1, 0.5], "same") + array([2. , 3.5, 3. ]) + >>> np.correlate([1, 2, 3], [0, 1, 0.5], "full") + array([0.5, 2. , 3.5, 3. , 0. ]) + + Using complex sequences: + + >>> np.correlate([1+1j, 2, 3-1j], [0, 1, 0.5j], 'full') + array([ 0.5-0.5j, 1.0+0.j , 1.5-1.5j, 3.0-1.j , 0.0+0.j ]) + + Note that you get the time reversed, complex conjugated result + (:math:`\overline{c_{-k}}`) when the two input sequences a and v change + places: + + >>> np.correlate([0, 1, 0.5j], [1+1j, 2, 3-1j], 'full') + array([ 0.0+0.j , 3.0+1.j , 1.5+1.5j, 1.0+0.j , 0.5+0.5j]) + + """ + return multiarray.correlate2(a, v, mode) + + +def _convolve_dispatcher(a, v, mode=None): + return (a, v) + + +@array_function_dispatch(_convolve_dispatcher) +def convolve(a, v, mode='full'): + """ + Returns the discrete, linear convolution of two one-dimensional sequences. + + The convolution operator is often seen in signal processing, where it + models the effect of a linear time-invariant system on a signal [1]_. In + probability theory, the sum of two independent random variables is + distributed according to the convolution of their individual + distributions. + + If `v` is longer than `a`, the arrays are swapped before computation. + + Parameters + ---------- + a : (N,) array_like + First one-dimensional input array. + v : (M,) array_like + Second one-dimensional input array. + mode : {'full', 'valid', 'same'}, optional + 'full': + By default, mode is 'full'. This returns the convolution + at each point of overlap, with an output shape of (N+M-1,). At + the end-points of the convolution, the signals do not overlap + completely, and boundary effects may be seen. + + 'same': + Mode 'same' returns output of length ``max(M, N)``. Boundary + effects are still visible. + + 'valid': + Mode 'valid' returns output of length + ``max(M, N) - min(M, N) + 1``. The convolution product is only given + for points where the signals overlap completely. Values outside + the signal boundary have no effect. + + Returns + ------- + out : ndarray + Discrete, linear convolution of `a` and `v`. + + See Also + -------- + scipy.signal.fftconvolve : Convolve two arrays using the Fast Fourier + Transform. + scipy.linalg.toeplitz : Used to construct the convolution operator. + polymul : Polynomial multiplication. Same output as convolve, but also + accepts poly1d objects as input. + + Notes + ----- + The discrete convolution operation is defined as + + .. math:: (a * v)_n = \\sum_{m = -\\infty}^{\\infty} a_m v_{n - m} + + It can be shown that a convolution :math:`x(t) * y(t)` in time/space + is equivalent to the multiplication :math:`X(f) Y(f)` in the Fourier + domain, after appropriate padding (padding is necessary to prevent + circular convolution). Since multiplication is more efficient (faster) + than convolution, the function `scipy.signal.fftconvolve` exploits the + FFT to calculate the convolution of large data-sets. + + References + ---------- + .. [1] Wikipedia, "Convolution", + https://en.wikipedia.org/wiki/Convolution + + Examples + -------- + Note how the convolution operator flips the second array + before "sliding" the two across one another: + + >>> import numpy as np + >>> np.convolve([1, 2, 3], [0, 1, 0.5]) + array([0. , 1. , 2.5, 4. , 1.5]) + + Only return the middle values of the convolution. + Contains boundary effects, where zeros are taken + into account: + + >>> np.convolve([1,2,3],[0,1,0.5], 'same') + array([1. , 2.5, 4. ]) + + The two arrays are of the same length, so there + is only one position where they completely overlap: + + >>> np.convolve([1,2,3],[0,1,0.5], 'valid') + array([2.5]) + + """ + a, v = array(a, copy=None, ndmin=1), array(v, copy=None, ndmin=1) + if len(a) == 0: + raise ValueError('a cannot be empty') + if len(v) == 0: + raise ValueError('v cannot be empty') + if len(v) > len(a): + a, v = v, a + return multiarray.correlate(a, v[::-1], mode) + + +def _outer_dispatcher(a, b, out=None): + return (a, b, out) + + +@array_function_dispatch(_outer_dispatcher) +def outer(a, b, out=None): + """ + Compute the outer product of two vectors. + + Given two vectors `a` and `b` of length ``M`` and ``N``, respectively, + the outer product [1]_ is:: + + [[a_0*b_0 a_0*b_1 ... a_0*b_{N-1} ] + [a_1*b_0 . + [ ... . + [a_{M-1}*b_0 a_{M-1}*b_{N-1} ]] + + Parameters + ---------- + a : (M,) array_like + First input vector. Input is flattened if + not already 1-dimensional. + b : (N,) array_like + Second input vector. Input is flattened if + not already 1-dimensional. + out : (M, N) ndarray, optional + A location where the result is stored + + Returns + ------- + out : (M, N) ndarray + ``out[i, j] = a[i] * b[j]`` + + See also + -------- + inner + einsum : ``einsum('i,j->ij', a.ravel(), b.ravel())`` is the equivalent. + ufunc.outer : A generalization to dimensions other than 1D and other + operations. ``np.multiply.outer(a.ravel(), b.ravel())`` + is the equivalent. + linalg.outer : An Array API compatible variation of ``np.outer``, + which accepts 1-dimensional inputs only. + tensordot : ``np.tensordot(a.ravel(), b.ravel(), axes=((), ()))`` + is the equivalent. + + References + ---------- + .. [1] G. H. Golub and C. F. Van Loan, *Matrix Computations*, 3rd + ed., Baltimore, MD, Johns Hopkins University Press, 1996, + pg. 8. + + Examples + -------- + Make a (*very* coarse) grid for computing a Mandelbrot set: + + >>> import numpy as np + >>> rl = np.outer(np.ones((5,)), np.linspace(-2, 2, 5)) + >>> rl + array([[-2., -1., 0., 1., 2.], + [-2., -1., 0., 1., 2.], + [-2., -1., 0., 1., 2.], + [-2., -1., 0., 1., 2.], + [-2., -1., 0., 1., 2.]]) + >>> im = np.outer(1j*np.linspace(2, -2, 5), np.ones((5,))) + >>> im + array([[0.+2.j, 0.+2.j, 0.+2.j, 0.+2.j, 0.+2.j], + [0.+1.j, 0.+1.j, 0.+1.j, 0.+1.j, 0.+1.j], + [0.+0.j, 0.+0.j, 0.+0.j, 0.+0.j, 0.+0.j], + [0.-1.j, 0.-1.j, 0.-1.j, 0.-1.j, 0.-1.j], + [0.-2.j, 0.-2.j, 0.-2.j, 0.-2.j, 0.-2.j]]) + >>> grid = rl + im + >>> grid + array([[-2.+2.j, -1.+2.j, 0.+2.j, 1.+2.j, 2.+2.j], + [-2.+1.j, -1.+1.j, 0.+1.j, 1.+1.j, 2.+1.j], + [-2.+0.j, -1.+0.j, 0.+0.j, 1.+0.j, 2.+0.j], + [-2.-1.j, -1.-1.j, 0.-1.j, 1.-1.j, 2.-1.j], + [-2.-2.j, -1.-2.j, 0.-2.j, 1.-2.j, 2.-2.j]]) + + An example using a "vector" of letters: + + >>> x = np.array(['a', 'b', 'c'], dtype=object) + >>> np.outer(x, [1, 2, 3]) + array([['a', 'aa', 'aaa'], + ['b', 'bb', 'bbb'], + ['c', 'cc', 'ccc']], dtype=object) + + """ + a = asarray(a) + b = asarray(b) + return multiply(a.ravel()[:, newaxis], b.ravel()[newaxis, :], out) + + +def _tensordot_dispatcher(a, b, axes=None): + return (a, b) + + +@array_function_dispatch(_tensordot_dispatcher) +def tensordot(a, b, axes=2): + """ + Compute tensor dot product along specified axes. + + Given two tensors, `a` and `b`, and an array_like object containing + two array_like objects, ``(a_axes, b_axes)``, sum the products of + `a`'s and `b`'s elements (components) over the axes specified by + ``a_axes`` and ``b_axes``. The third argument can be a single non-negative + integer_like scalar, ``N``; if it is such, then the last ``N`` dimensions + of `a` and the first ``N`` dimensions of `b` are summed over. + + Parameters + ---------- + a, b : array_like + Tensors to "dot". + + axes : int or (2,) array_like + * integer_like + If an int N, sum over the last N axes of `a` and the first N axes + of `b` in order. The sizes of the corresponding axes must match. + * (2,) array_like + Or, a list of axes to be summed over, first sequence applying to `a`, + second to `b`. Both elements array_like must be of the same length. + Each axis may appear at most once; repeated axes are not allowed. + For example, ``axes=([1, 1], [0, 0])`` is invalid. + Returns + ------- + output : ndarray + The tensor dot product of the input. + + See Also + -------- + dot, einsum + + Notes + ----- + Three common use cases are: + * ``axes = 0`` : tensor product :math:`a\\otimes b` + * ``axes = 1`` : tensor dot product :math:`a\\cdot b` + * ``axes = 2`` : (default) tensor double contraction :math:`a:b` + + When `axes` is integer_like, the sequence of axes for evaluation + will be: from the -Nth axis to the -1th axis in `a`, + and from the 0th axis to (N-1)th axis in `b`. + For example, ``axes = 2`` is the equal to + ``axes = [[-2, -1], [0, 1]]``. + When N-1 is smaller than 0, or when -N is larger than -1, + the element of `a` and `b` are defined as the `axes`. + + When there is more than one axis to sum over - and they are not the last + (first) axes of `a` (`b`) - the argument `axes` should consist of + two sequences of the same length, with the first axis to sum over given + first in both sequences, the second axis second, and so forth. + The calculation can be referred to ``numpy.einsum``. + + For example, if ``a.shape == (2, 3, 4)`` and ``b.shape == (3, 4, 5)``, + then ``axes=([1, 2], [0, 1])`` sums over the ``(3, 4)`` dimensions of + both arrays and produces an output of shape ``(2, 5)``. + + Each summation axis corresponds to a distinct contraction index; repeating + an axis (for example ``axes=([1, 1], [0, 0])``) is invalid. + + The shape of the result consists of the non-contracted axes of the + first tensor, followed by the non-contracted axes of the second. + + Examples + -------- + An example on integer_like: + + >>> a_0 = np.array([[1, 2], [3, 4]]) + >>> b_0 = np.array([[5, 6], [7, 8]]) + >>> c_0 = np.tensordot(a_0, b_0, axes=0) + >>> c_0.shape + (2, 2, 2, 2) + >>> c_0 + array([[[[ 5, 6], + [ 7, 8]], + [[10, 12], + [14, 16]]], + [[[15, 18], + [21, 24]], + [[20, 24], + [28, 32]]]]) + + An example on array_like: + + >>> a = np.arange(60.).reshape(3,4,5) + >>> b = np.arange(24.).reshape(4,3,2) + >>> c = np.tensordot(a,b, axes=([1,0],[0,1])) + >>> c.shape + (5, 2) + >>> c + array([[4400., 4730.], + [4532., 4874.], + [4664., 5018.], + [4796., 5162.], + [4928., 5306.]]) + + A slower but equivalent way of computing the same... + + >>> d = np.zeros((5,2)) + >>> for i in range(5): + ... for j in range(2): + ... for k in range(3): + ... for n in range(4): + ... d[i,j] += a[k,n,i] * b[n,k,j] + >>> c == d + array([[ True, True], + [ True, True], + [ True, True], + [ True, True], + [ True, True]]) + + An extended example taking advantage of the overloading of + and \\*: + + >>> a = np.array(range(1, 9)).reshape((2, 2, 2)) + >>> A = np.array(('a', 'b', 'c', 'd'), dtype=object) + >>> A = A.reshape((2, 2)) + >>> a; A + array([[[1, 2], + [3, 4]], + [[5, 6], + [7, 8]]]) + array([['a', 'b'], + ['c', 'd']], dtype=object) + + >>> np.tensordot(a, A) # third argument default is 2 for double-contraction + array(['abbcccdddd', 'aaaaabbbbbbcccccccdddddddd'], dtype=object) + + >>> np.tensordot(a, A, 1) + array([[['acc', 'bdd'], + ['aaacccc', 'bbbdddd']], + [['aaaaacccccc', 'bbbbbdddddd'], + ['aaaaaaacccccccc', 'bbbbbbbdddddddd']]], dtype=object) + + >>> np.tensordot(a, A, 0) # tensor product (result too long to incl.) + array([[[[['a', 'b'], + ['c', 'd']], + ... + + >>> np.tensordot(a, A, (0, 1)) + array([[['abbbbb', 'cddddd'], + ['aabbbbbb', 'ccdddddd']], + [['aaabbbbbbb', 'cccddddddd'], + ['aaaabbbbbbbb', 'ccccdddddddd']]], dtype=object) + + >>> np.tensordot(a, A, (2, 1)) + array([[['abb', 'cdd'], + ['aaabbbb', 'cccdddd']], + [['aaaaabbbbbb', 'cccccdddddd'], + ['aaaaaaabbbbbbbb', 'cccccccdddddddd']]], dtype=object) + + >>> np.tensordot(a, A, ((0, 1), (0, 1))) + array(['abbbcccccddddddd', 'aabbbbccccccdddddddd'], dtype=object) + + >>> np.tensordot(a, A, ((2, 1), (1, 0))) + array(['acccbbdddd', 'aaaaacccccccbbbbbbdddddddd'], dtype=object) + + """ + try: + iter(axes) + except Exception: + axes_a = list(range(-axes, 0)) + axes_b = list(range(axes)) + else: + axes_a, axes_b = axes + try: + na = len(axes_a) + axes_a = list(axes_a) + except TypeError: + axes_a = [axes_a] + na = 1 + try: + nb = len(axes_b) + axes_b = list(axes_b) + except TypeError: + axes_b = [axes_b] + nb = 1 + + if len(set(axes_a)) != len(axes_a): + raise ValueError("duplicate axes are not allowed in tensordot") + if len(set(axes_b)) != len(axes_b): + raise ValueError("duplicate axes are not allowed in tensordot") + + a, b = asarray(a), asarray(b) + as_ = a.shape + nda = a.ndim + bs = b.shape + ndb = b.ndim + equal = True + if na != nb: + equal = False + else: + for k in range(na): + if as_[axes_a[k]] != bs[axes_b[k]]: + equal = False + break + if axes_a[k] < 0: + axes_a[k] += nda + if axes_b[k] < 0: + axes_b[k] += ndb + if not equal: + raise ValueError("shape-mismatch for sum") + + # Move the axes to sum over to the end of "a" + # and to the front of "b" + notin = [k for k in range(nda) if k not in axes_a] + newaxes_a = notin + axes_a + N2 = math.prod(as_[axis] for axis in axes_a) + newshape_a = (math.prod(as_[ax] for ax in notin), N2) + olda = [as_[axis] for axis in notin] + + notin = [k for k in range(ndb) if k not in axes_b] + newaxes_b = axes_b + notin + N2 = math.prod(bs[axis] for axis in axes_b) + newshape_b = (N2, math.prod(bs[ax] for ax in notin)) + oldb = [bs[axis] for axis in notin] + + at = a.transpose(newaxes_a).reshape(newshape_a) + bt = b.transpose(newaxes_b).reshape(newshape_b) + res = dot(at, bt) + return res.reshape(olda + oldb) + + +def _roll_dispatcher(a, shift, axis=None): + return (a,) + + +@array_function_dispatch(_roll_dispatcher) +def roll(a, shift, axis=None): + """ + Roll array elements along a given axis. + + Elements that roll beyond the last position are re-introduced at + the first. + + Parameters + ---------- + a : array_like + Input array. + shift : int or tuple of ints + The number of places by which elements are shifted. If a tuple, + then `axis` must be a tuple of the same size, and each of the + given axes is shifted by the corresponding number. If an int + while `axis` is a tuple of ints, then the same value is used for + all given axes. + axis : int or tuple of ints, optional + Axis or axes along which elements are shifted. By default, the + array is flattened before shifting, after which the original + shape is restored. + + Returns + ------- + res : ndarray + Output array, with the same shape as `a`. + + See Also + -------- + rollaxis : Roll the specified axis backwards, until it lies in a + given position. + + Notes + ----- + Supports rolling over multiple dimensions simultaneously. + + Examples + -------- + >>> import numpy as np + >>> x = np.arange(10) + >>> np.roll(x, 2) + array([8, 9, 0, 1, 2, 3, 4, 5, 6, 7]) + >>> np.roll(x, -2) + array([2, 3, 4, 5, 6, 7, 8, 9, 0, 1]) + + >>> x2 = np.reshape(x, (2, 5)) + >>> x2 + array([[0, 1, 2, 3, 4], + [5, 6, 7, 8, 9]]) + >>> np.roll(x2, 1) + array([[9, 0, 1, 2, 3], + [4, 5, 6, 7, 8]]) + >>> np.roll(x2, -1) + array([[1, 2, 3, 4, 5], + [6, 7, 8, 9, 0]]) + >>> np.roll(x2, 1, axis=0) + array([[5, 6, 7, 8, 9], + [0, 1, 2, 3, 4]]) + >>> np.roll(x2, -1, axis=0) + array([[5, 6, 7, 8, 9], + [0, 1, 2, 3, 4]]) + >>> np.roll(x2, 1, axis=1) + array([[4, 0, 1, 2, 3], + [9, 5, 6, 7, 8]]) + >>> np.roll(x2, -1, axis=1) + array([[1, 2, 3, 4, 0], + [6, 7, 8, 9, 5]]) + >>> np.roll(x2, (1, 1), axis=(1, 0)) + array([[9, 5, 6, 7, 8], + [4, 0, 1, 2, 3]]) + >>> np.roll(x2, (2, 1), axis=(1, 0)) + array([[8, 9, 5, 6, 7], + [3, 4, 0, 1, 2]]) + + """ + a = asanyarray(a) + if axis is None: + return roll(a.ravel(), shift, 0).reshape(a.shape) + + else: + axis = normalize_axis_tuple(axis, a.ndim, allow_duplicate=True) + broadcasted = broadcast(shift, axis) + if broadcasted.ndim > 1: + raise ValueError( + "'shift' and 'axis' should be scalars or 1D sequences") + shifts = dict.fromkeys(range(a.ndim), 0) + for sh, ax in broadcasted: + shifts[ax] += int(sh) + + rolls = [((slice(None), slice(None)),)] * a.ndim + for ax, offset in shifts.items(): + offset %= a.shape[ax] or 1 # If `a` is empty, nothing matters. + if offset: + # (original, result), (original, result) + rolls[ax] = ((slice(None, -offset), slice(offset, None)), + (slice(-offset, None), slice(None, offset))) + + result = empty_like(a) + for indices in itertools.product(*rolls): + arr_index, res_index = zip(*indices) + result[res_index] = a[arr_index] + + return result + + +def _rollaxis_dispatcher(a, axis, start=None): + return (a,) + + +@array_function_dispatch(_rollaxis_dispatcher) +def rollaxis(a, axis, start=0): + """ + Roll the specified axis backwards, until it lies in a given position. + + This function continues to be supported for backward compatibility, but you + should prefer `moveaxis`. The `moveaxis` function was added in NumPy + 1.11. + + Parameters + ---------- + a : ndarray + Input array. + axis : int + The axis to be rolled. The positions of the other axes do not + change relative to one another. + start : int, optional + When ``start <= axis``, the axis is rolled back until it lies in + this position. When ``start > axis``, the axis is rolled until it + lies before this position. The default, 0, results in a "complete" + roll. The following table describes how negative values of ``start`` + are interpreted: + + .. table:: + :align: left + + +-------------------+----------------------+ + | ``start`` | Normalized ``start`` | + +===================+======================+ + | ``-(arr.ndim+1)`` | raise ``AxisError`` | + +-------------------+----------------------+ + | ``-arr.ndim`` | 0 | + +-------------------+----------------------+ + | |vdots| | |vdots| | + +-------------------+----------------------+ + | ``-1`` | ``arr.ndim-1`` | + +-------------------+----------------------+ + | ``0`` | ``0`` | + +-------------------+----------------------+ + | |vdots| | |vdots| | + +-------------------+----------------------+ + | ``arr.ndim`` | ``arr.ndim`` | + +-------------------+----------------------+ + | ``arr.ndim + 1`` | raise ``AxisError`` | + +-------------------+----------------------+ + + .. |vdots| unicode:: U+22EE .. Vertical Ellipsis + + Returns + ------- + res : ndarray + For NumPy >= 1.10.0 a view of `a` is always returned. For earlier + NumPy versions a view of `a` is returned only if the order of the + axes is changed, otherwise the input array is returned. + + See Also + -------- + moveaxis : Move array axes to new positions. + roll : Roll the elements of an array by a number of positions along a + given axis. + + Examples + -------- + >>> import numpy as np + >>> a = np.ones((3,4,5,6)) + >>> np.rollaxis(a, 3, 1).shape + (3, 6, 4, 5) + >>> np.rollaxis(a, 2).shape + (5, 3, 4, 6) + >>> np.rollaxis(a, 1, 4).shape + (3, 5, 6, 4) + + """ + n = a.ndim + axis = normalize_axis_index(axis, n) + if start < 0: + start += n + msg = "'%s' arg requires %d <= %s < %d, but %d was passed in" + if not (0 <= start < n + 1): + raise AxisError(msg % ('start', -n, 'start', n + 1, start)) + if axis < start: + # it's been removed + start -= 1 + if axis == start: + return a[...] + axes = list(range(n)) + axes.remove(axis) + axes.insert(start, axis) + return a.transpose(axes) + + +@set_module("numpy.lib.array_utils") +def normalize_axis_tuple(axis, ndim, argname=None, allow_duplicate=False): + """ + Normalizes an axis argument into a tuple of non-negative integer axes. + + This handles shorthands such as ``1`` and converts them to ``(1,)``, + as well as performing the handling of negative indices covered by + `normalize_axis_index`. + + By default, this forbids axes from being specified multiple times. + + Used internally by multi-axis-checking logic. + + Parameters + ---------- + axis : int, iterable of int + The un-normalized index or indices of the axis. + ndim : int + The number of dimensions of the array that `axis` should be normalized + against. + argname : str, optional + A prefix to put before the error message, typically the name of the + argument. + allow_duplicate : bool, optional + If False, the default, disallow an axis from being specified twice. + + Returns + ------- + normalized_axes : tuple of int + The normalized axis index, such that `0 <= normalized_axis < ndim` + + Raises + ------ + AxisError + If any axis provided is out of range + ValueError + If an axis is repeated + + See also + -------- + normalize_axis_index : normalizing a single scalar axis + """ + # Optimization to speed-up the most common cases. + if not isinstance(axis, (tuple, list)): + try: + axis = [operator.index(axis)] + except TypeError: + pass + # Going via an iterator directly is slower than via list comprehension. + axis = tuple(normalize_axis_index(ax, ndim, argname) for ax in axis) + if not allow_duplicate and len(set(axis)) != len(axis): + if argname: + raise ValueError(f'repeated axis in `{argname}` argument') + else: + raise ValueError('repeated axis') + return axis + + +def _moveaxis_dispatcher(a, source, destination): + return (a,) + + +@array_function_dispatch(_moveaxis_dispatcher) +def moveaxis(a, source, destination): + """ + Move axes of an array to new positions. + + Other axes remain in their original order. + + Parameters + ---------- + a : np.ndarray + The array whose axes should be reordered. + source : int or sequence of int + Original positions of the axes to move. These must be unique. + destination : int or sequence of int + Destination positions for each of the original axes. These must also be + unique. + + Returns + ------- + result : np.ndarray + Array with moved axes. This array is a view of the input array. + + See Also + -------- + transpose : Permute the dimensions of an array. + swapaxes : Interchange two axes of an array. + + Examples + -------- + >>> import numpy as np + >>> x = np.zeros((3, 4, 5)) + >>> np.moveaxis(x, 0, -1).shape + (4, 5, 3) + >>> np.moveaxis(x, -1, 0).shape + (5, 3, 4) + + These all achieve the same result: + + >>> np.transpose(x).shape + (5, 4, 3) + >>> np.swapaxes(x, 0, -1).shape + (5, 4, 3) + >>> np.moveaxis(x, [0, 1], [-1, -2]).shape + (5, 4, 3) + >>> np.moveaxis(x, [0, 1, 2], [-1, -2, -3]).shape + (5, 4, 3) + + """ + try: + # allow duck-array types if they define transpose + transpose = a.transpose + except AttributeError: + a = asarray(a) + transpose = a.transpose + + source = normalize_axis_tuple(source, a.ndim, 'source') + destination = normalize_axis_tuple(destination, a.ndim, 'destination') + if len(source) != len(destination): + raise ValueError('`source` and `destination` arguments must have ' + 'the same number of elements') + + order = [n for n in range(a.ndim) if n not in source] + + for dest, src in sorted(zip(destination, source)): + order.insert(dest, src) + + result = transpose(order) + return result + + +def _cross_dispatcher(a, b, axisa=None, axisb=None, axisc=None, axis=None): + return (a, b) + + +@array_function_dispatch(_cross_dispatcher) +def cross(a, b, axisa=-1, axisb=-1, axisc=-1, axis=None): + """ + Return the cross product of two (arrays of) vectors. + + The cross product of `a` and `b` in :math:`R^3` is a vector perpendicular + to both `a` and `b`. If `a` and `b` are arrays of vectors, the vectors + are defined by the last axis of `a` and `b` by default, and these axes + can have dimensions 2 or 3. Where the dimension of either `a` or `b` is + 2, the third component of the input vector is assumed to be zero and the + cross product calculated accordingly. In cases where both input vectors + have dimension 2, the z-component of the cross product is returned. + + Parameters + ---------- + a : array_like + Components of the first vector(s). + b : array_like + Components of the second vector(s). + axisa : int, optional + Axis of `a` that defines the vector(s). By default, the last axis. + axisb : int, optional + Axis of `b` that defines the vector(s). By default, the last axis. + axisc : int, optional + Axis of `c` containing the cross product vector(s). Ignored if + both input vectors have dimension 2, as the return is scalar. + By default, the last axis. + axis : int, optional + If defined, the axis of `a`, `b` and `c` that defines the vector(s) + and cross product(s). Overrides `axisa`, `axisb` and `axisc`. + + Returns + ------- + c : ndarray + Vector cross product(s). + + Raises + ------ + ValueError + When the dimension of the vector(s) in `a` and/or `b` does not + equal 2 or 3. + + See Also + -------- + inner : Inner product + outer : Outer product. + linalg.cross : An Array API compatible variation of ``np.cross``, + which accepts (arrays of) 3-element vectors only. + ix_ : Construct index arrays. + + Notes + ----- + Supports full broadcasting of the inputs. + + Dimension-2 input arrays were deprecated in 2.0.0. If you do need this + functionality, you can use:: + + def cross2d(x, y): + return x[..., 0] * y[..., 1] - x[..., 1] * y[..., 0] + + Examples + -------- + Vector cross-product. + + >>> import numpy as np + >>> x = [1, 2, 3] + >>> y = [4, 5, 6] + >>> np.cross(x, y) + array([-3, 6, -3]) + + One vector with dimension 2. + + >>> x = [1, 2] + >>> y = [4, 5, 6] + >>> np.cross(x, y) + array([12, -6, -3]) + + Equivalently: + + >>> x = [1, 2, 0] + >>> y = [4, 5, 6] + >>> np.cross(x, y) + array([12, -6, -3]) + + Both vectors with dimension 2. + + >>> x = [1,2] + >>> y = [4,5] + >>> np.cross(x, y) + array(-3) + + Multiple vector cross-products. Note that the direction of the cross + product vector is defined by the *right-hand rule*. + + >>> x = np.array([[1,2,3], [4,5,6]]) + >>> y = np.array([[4,5,6], [1,2,3]]) + >>> np.cross(x, y) + array([[-3, 6, -3], + [ 3, -6, 3]]) + + The orientation of `c` can be changed using the `axisc` keyword. + + >>> np.cross(x, y, axisc=0) + array([[-3, 3], + [ 6, -6], + [-3, 3]]) + + Change the vector definition of `x` and `y` using `axisa` and `axisb`. + + >>> x = np.array([[1,2,3], [4,5,6], [7, 8, 9]]) + >>> y = np.array([[7, 8, 9], [4,5,6], [1,2,3]]) + >>> np.cross(x, y) + array([[ -6, 12, -6], + [ 0, 0, 0], + [ 6, -12, 6]]) + >>> np.cross(x, y, axisa=0, axisb=0) + array([[-24, 48, -24], + [-30, 60, -30], + [-36, 72, -36]]) + + """ + if axis is not None: + axisa, axisb, axisc = (axis,) * 3 + a = asarray(a) + b = asarray(b) + + if (a.ndim < 1) or (b.ndim < 1): + raise ValueError("At least one array has zero dimension") + + # Check axisa and axisb are within bounds + axisa = normalize_axis_index(axisa, a.ndim, msg_prefix='axisa') + axisb = normalize_axis_index(axisb, b.ndim, msg_prefix='axisb') + + # Move working axis to the end of the shape + a = moveaxis(a, axisa, -1) + b = moveaxis(b, axisb, -1) + msg = ("incompatible dimensions for cross product\n" + "(dimension must be 2 or 3)") + if a.shape[-1] not in (2, 3) or b.shape[-1] not in (2, 3): + raise ValueError(msg) + if a.shape[-1] == 2 or b.shape[-1] == 2: + # Deprecated in NumPy 2.0, 2023-09-26 + warnings.warn( + "Arrays of 2-dimensional vectors are deprecated. Use arrays of " + "3-dimensional vectors instead. (deprecated in NumPy 2.0)", + DeprecationWarning, stacklevel=2 + ) + + # Create the output array + shape = broadcast(a[..., 0], b[..., 0]).shape + if a.shape[-1] == 3 or b.shape[-1] == 3: + shape += (3,) + # Check axisc is within bounds + axisc = normalize_axis_index(axisc, len(shape), msg_prefix='axisc') + dtype = promote_types(a.dtype, b.dtype) + cp = empty(shape, dtype) + + # recast arrays as dtype + a = a.astype(dtype) + b = b.astype(dtype) + + # create local aliases for readability + a0 = a[..., 0] + a1 = a[..., 1] + if a.shape[-1] == 3: + a2 = a[..., 2] + b0 = b[..., 0] + b1 = b[..., 1] + if b.shape[-1] == 3: + b2 = b[..., 2] + if cp.ndim != 0 and cp.shape[-1] == 3: + cp0 = cp[..., 0] + cp1 = cp[..., 1] + cp2 = cp[..., 2] + + if a.shape[-1] == 2: + if b.shape[-1] == 2: + # a0 * b1 - a1 * b0 + multiply(a0, b1, out=cp) + cp -= a1 * b0 + return cp + else: + assert b.shape[-1] == 3 + # cp0 = a1 * b2 - 0 (a2 = 0) + # cp1 = 0 - a0 * b2 (a2 = 0) + # cp2 = a0 * b1 - a1 * b0 + multiply(a1, b2, out=cp0) + multiply(a0, b2, out=cp1) + negative(cp1, out=cp1) + multiply(a0, b1, out=cp2) + cp2 -= a1 * b0 + else: + assert a.shape[-1] == 3 + if b.shape[-1] == 3: + # cp0 = a1 * b2 - a2 * b1 + # cp1 = a2 * b0 - a0 * b2 + # cp2 = a0 * b1 - a1 * b0 + multiply(a1, b2, out=cp0) + tmp = np.multiply(a2, b1, out=...) + cp0 -= tmp + multiply(a2, b0, out=cp1) + multiply(a0, b2, out=tmp) + cp1 -= tmp + multiply(a0, b1, out=cp2) + multiply(a1, b0, out=tmp) + cp2 -= tmp + else: + assert b.shape[-1] == 2 + # cp0 = 0 - a2 * b1 (b2 = 0) + # cp1 = a2 * b0 - 0 (b2 = 0) + # cp2 = a0 * b1 - a1 * b0 + multiply(a2, b1, out=cp0) + negative(cp0, out=cp0) + multiply(a2, b0, out=cp1) + multiply(a0, b1, out=cp2) + cp2 -= a1 * b0 + + return moveaxis(cp, -1, axisc) + + +little_endian = (sys.byteorder == 'little') + + +@set_module('numpy') +def indices(dimensions, dtype=int, sparse=False): + """ + Return an array representing the indices of a grid. + + Compute an array where the subarrays contain index values 0, 1, ... + varying only along the corresponding axis. + + Parameters + ---------- + dimensions : sequence of ints + The shape of the grid. + dtype : dtype, optional + Data type of the result. + sparse : boolean, optional + Return a sparse representation of the grid instead of a dense + representation. Default is False. + + Returns + ------- + grid : one ndarray or tuple of ndarrays + If sparse is False: + Returns one array of grid indices, + ``grid.shape = (len(dimensions),) + tuple(dimensions)``. + If sparse is True: + Returns a tuple of arrays, with + ``grid[i].shape = (1, ..., 1, dimensions[i], 1, ..., 1)`` with + dimensions[i] in the ith place + + See Also + -------- + mgrid, ogrid, meshgrid + + Notes + ----- + The output shape in the dense case is obtained by prepending the number + of dimensions in front of the tuple of dimensions, i.e. if `dimensions` + is a tuple ``(r0, ..., rN-1)`` of length ``N``, the output shape is + ``(N, r0, ..., rN-1)``. + + The subarrays ``grid[k]`` contains the N-D array of indices along the + ``k-th`` axis. Explicitly:: + + grid[k, i0, i1, ..., iN-1] = ik + + Examples + -------- + >>> import numpy as np + >>> grid = np.indices((2, 3)) + >>> grid.shape + (2, 2, 3) + >>> grid[0] # row indices + array([[0, 0, 0], + [1, 1, 1]]) + >>> grid[1] # column indices + array([[0, 1, 2], + [0, 1, 2]]) + + The indices can be used as an index into an array. + + >>> x = np.arange(20).reshape(5, 4) + >>> row, col = np.indices((2, 3)) + >>> x[row, col] + array([[0, 1, 2], + [4, 5, 6]]) + + Note that it would be more straightforward in the above example to + extract the required elements directly with ``x[:2, :3]``. + + If sparse is set to true, the grid will be returned in a sparse + representation. + + >>> i, j = np.indices((2, 3), sparse=True) + >>> i.shape + (2, 1) + >>> j.shape + (1, 3) + >>> i # row indices + array([[0], + [1]]) + >>> j # column indices + array([[0, 1, 2]]) + + """ + dimensions = tuple(dimensions) + N = len(dimensions) + shape = (1,) * N + if sparse: + res = () + else: + res = empty((N,) + dimensions, dtype=dtype) + for i, dim in enumerate(dimensions): + idx = arange(dim, dtype=dtype).reshape( + shape[:i] + (dim,) + shape[i + 1:] + ) + if sparse: + res = res + (idx,) + else: + res[i] = idx + return res + + +@finalize_array_function_like +@set_module('numpy') +def fromfunction(function, shape, *, dtype=float, like=None, **kwargs): + """ + Construct an array by executing a function over each coordinate. + + The resulting array therefore has a value ``fn(x, y, z)`` at + coordinate ``(x, y, z)``. + + Parameters + ---------- + function : callable + The function is called with N parameters, where N is the rank of + `shape`. Each parameter represents the coordinates of the array + varying along a specific axis. For example, if `shape` + were ``(2, 2)``, then the parameters would be + ``array([[0, 0], [1, 1]])`` and ``array([[0, 1], [0, 1]])`` + shape : (N,) tuple of ints + Shape of the output array, which also determines the shape of + the coordinate arrays passed to `function`. + dtype : data-type, optional + Data-type of the coordinate arrays passed to `function`. + By default, `dtype` is float. + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + Returns + ------- + fromfunction : any + The result of the call to `function` is passed back directly. + Therefore the shape of `fromfunction` is completely determined by + `function`. If `function` returns a scalar value, the shape of + `fromfunction` would not match the `shape` parameter. + + See Also + -------- + indices, meshgrid + + Notes + ----- + Keywords other than `dtype` and `like` are passed to `function`. + + Examples + -------- + >>> import numpy as np + >>> np.fromfunction(lambda i, j: i, (2, 2), dtype=float) + array([[0., 0.], + [1., 1.]]) + + >>> np.fromfunction(lambda i, j: j, (2, 2), dtype=float) + array([[0., 1.], + [0., 1.]]) + + >>> np.fromfunction(lambda i, j: i == j, (3, 3), dtype=int) + array([[ True, False, False], + [False, True, False], + [False, False, True]]) + + >>> np.fromfunction(lambda i, j: i + j, (3, 3), dtype=int) + array([[0, 1, 2], + [1, 2, 3], + [2, 3, 4]]) + + """ + if like is not None: + return _fromfunction_with_like( + like, function, shape, dtype=dtype, **kwargs) + + args = indices(shape, dtype=dtype) + return function(*args, **kwargs) + + +_fromfunction_with_like = array_function_dispatch()(fromfunction) + + +def _frombuffer(buf, dtype, shape, order, axis_order=None): + array = frombuffer(buf, dtype=dtype) + if order == 'K' and axis_order is not None: + return array.reshape(shape, order='C').transpose(axis_order) + return array.reshape(shape, order=order) + + +@set_module('numpy') +def isscalar(element): + """ + Returns True if the type of `element` is a scalar type. + + Parameters + ---------- + element : any + Input argument, can be of any type and shape. + + Returns + ------- + val : bool + True if `element` is a scalar type, False if it is not. + + See Also + -------- + ndim : Get the number of dimensions of an array + + Notes + ----- + If you need a stricter way to identify a *numerical* scalar, use + ``isinstance(x, numbers.Number)``, as that returns ``False`` for most + non-numerical elements such as strings. + + In most cases ``np.ndim(x) == 0`` should be used instead of this function, + as that will also return true for 0d arrays. This is how numpy overloads + functions in the style of the ``dx`` arguments to `gradient` and + the ``bins`` argument to `histogram`. Some key differences: + + +------------------------------------+---------------+-------------------+ + | x |``isscalar(x)``|``np.ndim(x) == 0``| + +====================================+===============+===================+ + | PEP 3141 numeric objects | ``True`` | ``True`` | + | (including builtins) | | | + +------------------------------------+---------------+-------------------+ + | builtin string and buffer objects | ``True`` | ``True`` | + +------------------------------------+---------------+-------------------+ + | other builtin objects, like | ``False`` | ``True`` | + | `pathlib.Path`, `Exception`, | | | + | the result of `re.compile` | | | + +------------------------------------+---------------+-------------------+ + | third-party objects like | ``False`` | ``True`` | + | `matplotlib.figure.Figure` | | | + +------------------------------------+---------------+-------------------+ + | zero-dimensional numpy arrays | ``False`` | ``True`` | + +------------------------------------+---------------+-------------------+ + | other numpy arrays | ``False`` | ``False`` | + +------------------------------------+---------------+-------------------+ + | `list`, `tuple`, and other | ``False`` | ``False`` | + | sequence objects | | | + +------------------------------------+---------------+-------------------+ + + Examples + -------- + >>> import numpy as np + + >>> np.isscalar(3.1) + True + + >>> np.isscalar(np.array(3.1)) + False + + >>> np.isscalar([3.1]) + False + + >>> np.isscalar(False) + True + + >>> np.isscalar('numpy') + True + + NumPy supports PEP 3141 numbers: + + >>> from fractions import Fraction + >>> np.isscalar(Fraction(5, 17)) + True + >>> from numbers import Number + >>> np.isscalar(Number()) + True + + """ + return (isinstance(element, generic) + or type(element) in ScalarType + or isinstance(element, numbers.Number)) + + +@set_module('numpy') +def binary_repr(num, width=None): + """ + Return the binary representation of the input number as a string. + + For negative numbers, if width is not given, a minus sign is added to the + front. If width is given, the two's complement of the number is + returned, with respect to that width. + + In a two's-complement system negative numbers are represented by the two's + complement of the absolute value. This is the most common method of + representing signed integers on computers [1]_. A N-bit two's-complement + system can represent every integer in the range + :math:`-2^{N-1}` to :math:`+2^{N-1}-1`. + + Parameters + ---------- + num : int + Only an integer decimal number can be used. + width : int, optional + The length of the returned string if `num` is positive, or the length + of the two's complement if `num` is negative, provided that `width` is + at least a sufficient number of bits for `num` to be represented in + the designated form. If the `width` value is insufficient, an error is + raised. + + Returns + ------- + bin : str + Binary representation of `num` or two's complement of `num`. + + See Also + -------- + base_repr: Return a string representation of a number in the given base + system. + bin: Python's built-in binary representation generator of an integer. + + Notes + ----- + `binary_repr` is equivalent to using `base_repr` with base 2, but about 25x + faster. + + References + ---------- + .. [1] Wikipedia, "Two's complement", + https://en.wikipedia.org/wiki/Two's_complement + + Examples + -------- + >>> import numpy as np + >>> np.binary_repr(3) + '11' + >>> np.binary_repr(-3) + '-11' + >>> np.binary_repr(3, width=4) + '0011' + + The two's complement is returned when the input number is negative and + width is specified: + + >>> np.binary_repr(-3, width=3) + '101' + >>> np.binary_repr(-3, width=5) + '11101' + + """ + def err_if_insufficient(width, binwidth): + if width is not None and width < binwidth: + raise ValueError( + f"Insufficient bit {width=} provided for {binwidth=}" + ) + + # Ensure that num is a Python integer to avoid overflow or unwanted + # casts to floating point. + num = operator.index(num) + + if num == 0: + return '0' * (width or 1) + + elif num > 0: + binary = f'{num:b}' + binwidth = len(binary) + outwidth = (binwidth if width is None + else builtins.max(binwidth, width)) + err_if_insufficient(width, binwidth) + return binary.zfill(outwidth) + + elif width is None: + return f'-{-num:b}' + + else: + poswidth = len(f'{-num:b}') + + # See gh-8679: remove extra digit + # for numbers at boundaries. + if 2**(poswidth - 1) == -num: + poswidth -= 1 + + twocomp = 2**(poswidth + 1) + num + binary = f'{twocomp:b}' + binwidth = len(binary) + + outwidth = builtins.max(binwidth, width) + err_if_insufficient(width, binwidth) + return '1' * (outwidth - binwidth) + binary + + +@set_module('numpy') +def base_repr(number, base=2, padding=0): + """ + Return a string representation of a number in the given base system. + + Parameters + ---------- + number : int + The value to convert. Positive and negative values are handled. + base : int, optional + Convert `number` to the `base` number system. The valid range is 2-36, + the default value is 2. + padding : int, optional + Number of zeros padded on the left. Default is 0 (no padding). + + Returns + ------- + out : str + String representation of `number` in `base` system. + + See Also + -------- + binary_repr : Faster version of `base_repr` for base 2. + + Examples + -------- + >>> import numpy as np + >>> np.base_repr(5) + '101' + >>> np.base_repr(6, 5) + '11' + >>> np.base_repr(7, base=5, padding=3) + '00012' + + >>> np.base_repr(10, base=16) + 'A' + >>> np.base_repr(32, base=16) + '20' + + """ + digits = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ' + if base > len(digits): + raise ValueError("Bases greater than 36 not handled in base_repr.") + elif base < 2: + raise ValueError("Bases less than 2 not handled in base_repr.") + + num = abs(int(number)) + res = [] + while num: + res.append(digits[num % base]) + num //= base + if padding: + res.append('0' * padding) + if number < 0: + res.append('-') + return ''.join(reversed(res or '0')) + + +# These are all essentially abbreviations +# These might wind up in a special abbreviations module + + +def _maketup(descr, val): + dt = dtype(descr) + # Place val in all scalar tuples: + fields = dt.fields + if fields is None: + return val + else: + res = [_maketup(fields[name][0], val) for name in dt.names] + return tuple(res) + + +@finalize_array_function_like +@set_module('numpy') +def identity(n, dtype=None, *, like=None): + """ + Return the identity array. + + The identity array is a square array with ones on + the main diagonal. + + Parameters + ---------- + n : int + Number of rows (and columns) in `n` x `n` output. + dtype : data-type, optional + Data-type of the output. Defaults to ``float``. + ${ARRAY_FUNCTION_LIKE} + + .. versionadded:: 1.20.0 + + Returns + ------- + out : ndarray + `n` x `n` array with its main diagonal set to one, + and all other elements 0. + + Examples + -------- + >>> import numpy as np + >>> np.identity(3) + array([[1., 0., 0.], + [0., 1., 0.], + [0., 0., 1.]]) + + """ + if like is not None: + return _identity_with_like(like, n, dtype=dtype) + + from numpy import eye + return eye(n, dtype=dtype, like=like) + + +_identity_with_like = array_function_dispatch()(identity) + + +def _allclose_dispatcher(a, b, rtol=None, atol=None, equal_nan=None): + return (a, b, rtol, atol) + + +@array_function_dispatch(_allclose_dispatcher) +def allclose(a, b, rtol=1.e-5, atol=1.e-8, equal_nan=False): + """ + Returns True if two arrays are element-wise equal within a tolerance. + + The tolerance values are positive, typically very small numbers. The + relative difference (`rtol` * abs(`b`)) and the absolute difference + `atol` are added together to compare against the absolute difference + between `a` and `b`. + + .. warning:: The default `atol` is not appropriate for comparing numbers + with magnitudes much smaller than one (see Notes). + + NaNs are treated as equal if they are in the same place and if + ``equal_nan=True``. Infs are treated as equal if they are in the same + place and of the same sign in both arrays. + + Parameters + ---------- + a, b : array_like + Input arrays to compare. + rtol : array_like + The relative tolerance parameter (see Notes). + atol : array_like + The absolute tolerance parameter (see Notes). + equal_nan : bool + Whether to compare NaN's as equal. If True, NaN's in `a` will be + considered equal to NaN's in `b` in the output array. + + Returns + ------- + allclose : bool + Returns True if the two arrays are equal within the given + tolerance; False otherwise. + + See Also + -------- + isclose, all, any, equal + + Notes + ----- + If the following equation is element-wise True, then allclose returns + True.:: + + absolute(a - b) <= (atol + rtol * absolute(b)) + + The above equation is not symmetric in `a` and `b`, so that + ``allclose(a, b)`` might be different from ``allclose(b, a)`` in + some rare cases. + + The default value of `atol` is not appropriate when the reference value + `b` has magnitude smaller than one. For example, it is unlikely that + ``a = 1e-9`` and ``b = 2e-9`` should be considered "close", yet + ``allclose(1e-9, 2e-9)`` is ``True`` with default settings. Be sure + to select `atol` for the use case at hand, especially for defining the + threshold below which a non-zero value in `a` will be considered "close" + to a very small or zero value in `b`. + + The comparison of `a` and `b` uses standard broadcasting, which + means that `a` and `b` need not have the same shape in order for + ``allclose(a, b)`` to evaluate to True. The same is true for + `equal` but not `array_equal`. + + `allclose` is not defined for non-numeric data types. + `bool` is considered a numeric data-type for this purpose. + + Examples + -------- + >>> import numpy as np + >>> np.allclose([1e10,1e-7], [1.00001e10,1e-8]) + False + + >>> np.allclose([1e10,1e-8], [1.00001e10,1e-9]) + True + + >>> np.allclose([1e10,1e-8], [1.0001e10,1e-9]) + False + + >>> np.allclose([1.0, np.nan], [1.0, np.nan]) + False + + >>> np.allclose([1.0, np.nan], [1.0, np.nan], equal_nan=True) + True + + + """ + res = all(isclose(a, b, rtol=rtol, atol=atol, equal_nan=equal_nan)) + return builtins.bool(res) + + +def _isclose_dispatcher(a, b, rtol=None, atol=None, equal_nan=None): + return (a, b, rtol, atol) + + +@array_function_dispatch(_isclose_dispatcher) +def isclose(a, b, rtol=1.e-5, atol=1.e-8, equal_nan=False): + """ + Returns a boolean array where two arrays are element-wise equal within a + tolerance. + + The tolerance values are positive, typically very small numbers. The + relative difference (`rtol` * abs(`b`)) and the absolute difference + `atol` are added together to compare against the absolute difference + between `a` and `b`. + + .. warning:: The default `atol` is not appropriate for comparing numbers + with magnitudes much smaller than one (see Notes). + + Parameters + ---------- + a, b : array_like + Input arrays to compare. + rtol : array_like + The relative tolerance parameter (see Notes). + atol : array_like + The absolute tolerance parameter (see Notes). + equal_nan : bool + Whether to compare NaN's as equal. If True, NaN's in `a` will be + considered equal to NaN's in `b` in the output array. + + Returns + ------- + y : array_like + Returns a boolean array of where `a` and `b` are equal within the + given tolerance. If both `a` and `b` are scalars, returns a single + boolean value. + + See Also + -------- + allclose + math.isclose + + Notes + ----- + For finite values, isclose uses the following equation to test whether + two floating point values are equivalent.:: + + absolute(a - b) <= (atol + rtol * absolute(b)) + + Unlike the built-in `math.isclose`, the above equation is not symmetric + in `a` and `b` -- it assumes `b` is the reference value -- so that + `isclose(a, b)` might be different from `isclose(b, a)`. + + The default value of `atol` is not appropriate when the reference value + `b` has magnitude smaller than one. For example, it is unlikely that + ``a = 1e-9`` and ``b = 2e-9`` should be considered "close", yet + ``isclose(1e-9, 2e-9)`` is ``True`` with default settings. Be sure + to select `atol` for the use case at hand, especially for defining the + threshold below which a non-zero value in `a` will be considered "close" + to a very small or zero value in `b`. + + `isclose` is not defined for non-numeric data types. + :class:`bool` is considered a numeric data-type for this purpose. + + Examples + -------- + >>> import numpy as np + >>> np.isclose([1e10,1e-7], [1.00001e10,1e-8]) + array([ True, False]) + + >>> np.isclose([1e10,1e-8], [1.00001e10,1e-9]) + array([ True, True]) + + >>> np.isclose([1e10,1e-8], [1.0001e10,1e-9]) + array([False, True]) + + >>> np.isclose([1.0, np.nan], [1.0, np.nan]) + array([ True, False]) + + >>> np.isclose([1.0, np.nan], [1.0, np.nan], equal_nan=True) + array([ True, True]) + + >>> np.isclose([1e-8, 1e-7], [0.0, 0.0]) + array([ True, False]) + + >>> np.isclose([1e-100, 1e-7], [0.0, 0.0], atol=0.0) + array([False, False]) + + >>> np.isclose([1e-10, 1e-10], [1e-20, 0.0]) + array([ True, True]) + + >>> np.isclose([1e-10, 1e-10], [1e-20, 0.999999e-10], atol=0.0) + array([False, True]) + + """ + # Turn all but python scalars into arrays. + x, y, atol, rtol = ( + a if isinstance(a, (int, float, complex)) else asanyarray(a) + for a in (a, b, atol, rtol)) + + # Make sure y is an inexact type to avoid bad behavior on abs(MIN_INT). + # This will cause casting of x later. Also, make sure to allow subclasses + # (e.g., for numpy.ma). + # NOTE: We explicitly allow timedelta, which used to work. This could + # possibly be deprecated. See also gh-18286. + # timedelta works if `atol` is an integer or also a timedelta. + # Although, the default tolerances are unlikely to be useful + if (dtype := getattr(y, "dtype", None)) is not None and dtype.kind != "m": + dt = multiarray.result_type(y, 1.) + y = asanyarray(y, dtype=dt) + elif isinstance(y, int): + y = float(y) + + # atol and rtol can be arrays + if not (np.all(np.isfinite(atol)) and np.all(np.isfinite(rtol))): + err_s = np.geterr()["invalid"] + err_msg = f"One of rtol or atol is not valid, atol: {atol}, rtol: {rtol}" + + if err_s == "warn": + warnings.warn(err_msg, RuntimeWarning, stacklevel=2) + elif err_s == "raise": + raise FloatingPointError(err_msg) + elif err_s == "print": + print(err_msg) + + with errstate(invalid='ignore'): + + result = (less_equal(abs(x - y), atol + rtol * abs(y)) + & isfinite(y) + | (x == y)) + if equal_nan: + result |= isnan(x) & isnan(y) + + return result[()] # Flatten 0d arrays to scalars + + +def _array_equal_dispatcher(a1, a2, equal_nan=None): + return (a1, a2) + + +_no_nan_types = { + # should use np.dtype.BoolDType, but as of writing + # that fails the reloading test. + type(dtype(nt.bool)), + type(dtype(nt.int8)), + type(dtype(nt.int16)), + type(dtype(nt.int32)), + type(dtype(nt.int64)), +} + + +def _dtype_cannot_hold_nan(dtype): + return type(dtype) in _no_nan_types + + +@array_function_dispatch(_array_equal_dispatcher) +def array_equal(a1, a2, equal_nan=False): + """ + True if two arrays have the same shape and elements, False otherwise. + + Parameters + ---------- + a1, a2 : array_like + Input arrays. + equal_nan : bool + Whether to compare NaN's as equal. If the dtype of a1 and a2 is + complex, values will be considered equal if either the real or the + imaginary component of a given value is ``nan``. + + Returns + ------- + b : bool + Returns True if the arrays are equal. + + See Also + -------- + allclose: Returns True if two arrays are element-wise equal within a + tolerance. + array_equiv: Returns True if input arrays are shape consistent and all + elements equal. + + Examples + -------- + >>> import numpy as np + + >>> np.array_equal([1, 2], [1, 2]) + True + + >>> np.array_equal(np.array([1, 2]), np.array([1, 2])) + True + + >>> np.array_equal([1, 2], [1, 2, 3]) + False + + >>> np.array_equal([1, 2], [1, 4]) + False + + >>> a = np.array([1, np.nan]) + >>> np.array_equal(a, a) + False + + >>> np.array_equal(a, a, equal_nan=True) + True + + When ``equal_nan`` is True, complex values with nan components are + considered equal if either the real *or* the imaginary components are nan. + + >>> a = np.array([1 + 1j]) + >>> b = a.copy() + >>> a.real = np.nan + >>> b.imag = np.nan + >>> np.array_equal(a, b, equal_nan=True) + True + """ + try: + a1, a2 = asarray(a1), asarray(a2) + except Exception: + return False + if a1.shape != a2.shape: + return False + if not equal_nan: + return builtins.bool((asanyarray(a1 == a2)).all()) + + if a1 is a2: + # nan will compare equal so an array will compare equal to itself. + return True + + cannot_have_nan = (_dtype_cannot_hold_nan(a1.dtype) + and _dtype_cannot_hold_nan(a2.dtype)) + if cannot_have_nan: + return builtins.bool(asarray(a1 == a2).all()) + + # Handling NaN values if equal_nan is True + a1nan, a2nan = isnan(a1), isnan(a2) + # NaN's occur at different locations + if not (a1nan == a2nan).all(): + return False + # Shapes of a1, a2 and masks are guaranteed to be consistent by this point + return builtins.bool((a1[~a1nan] == a2[~a1nan]).all()) + + +def _array_equiv_dispatcher(a1, a2): + return (a1, a2) + + +@array_function_dispatch(_array_equiv_dispatcher) +def array_equiv(a1, a2): + """ + Returns True if input arrays are shape consistent and all elements equal. + + Shape consistent means they are either the same shape, or one input array + can be broadcasted to create the same shape as the other one. + + Parameters + ---------- + a1, a2 : array_like + Input arrays. + + Returns + ------- + out : bool + True if equivalent, False otherwise. + + Examples + -------- + >>> import numpy as np + >>> np.array_equiv([1, 2], [1, 2]) + True + >>> np.array_equiv([1, 2], [1, 3]) + False + + Showing the shape equivalence: + + >>> np.array_equiv([1, 2], [[1, 2], [1, 2]]) + True + >>> np.array_equiv([1, 2], [[1, 2, 1, 2], [1, 2, 1, 2]]) + False + + >>> np.array_equiv([1, 2], [[1, 2], [1, 3]]) + False + + """ + try: + a1, a2 = asarray(a1), asarray(a2) + except Exception: + return False + try: + multiarray.broadcast(a1, a2) + except Exception: + return False + + return builtins.bool(asanyarray(a1 == a2).all()) + + +def _astype_dispatcher(x, dtype, /, *, copy=None, device=None): + return (x, dtype) + + +@array_function_dispatch(_astype_dispatcher) +def astype(x, dtype, /, *, copy=True, device=None): + """ + Copies an array to a specified data type. + + This function is an Array API compatible alternative to + `numpy.ndarray.astype`. + + Parameters + ---------- + x : ndarray + Input NumPy array to cast. ``array_likes`` are explicitly not + supported here. + dtype : dtype + Data type of the result. + copy : bool, optional + Specifies whether to copy an array when the specified dtype matches + the data type of the input array ``x``. If ``True``, a newly allocated + array must always be returned. If ``False`` and the specified dtype + matches the data type of the input array, the input array must be + returned; otherwise, a newly allocated array must be returned. + Defaults to ``True``. + device : str, optional + The device on which to place the returned array. Default: None. + For Array-API interoperability only, so must be ``"cpu"`` if passed. + + .. versionadded:: 2.1.0 + + Returns + ------- + out : ndarray + An array having the specified data type. + + See Also + -------- + ndarray.astype + + Examples + -------- + >>> import numpy as np + >>> arr = np.array([1, 2, 3]); arr + array([1, 2, 3]) + >>> np.astype(arr, np.float64) + array([1., 2., 3.]) + + Non-copy case: + + >>> arr = np.array([1, 2, 3]) + >>> arr_noncpy = np.astype(arr, arr.dtype, copy=False) + >>> np.shares_memory(arr, arr_noncpy) + True + + """ + if not (isinstance(x, np.ndarray) or isscalar(x)): + raise TypeError( + "Input should be a NumPy array or scalar. " + f"It is a {type(x)} instead." + ) + if device is not None and device != "cpu": + raise ValueError( + 'Device not understood. Only "cpu" is allowed, but received:' + f' {device}' + ) + return x.astype(dtype, copy=copy) + + +inf = PINF +nan = NAN +False_ = nt.bool(False) +True_ = nt.bool(True) + + +def extend_all(module): + existing = set(__all__) + mall = module.__all__ + for a in mall: + if a not in existing: + __all__.append(a) + + +from . import _asarray, _ufunc_config, arrayprint, fromnumeric +from ._asarray import * +from ._ufunc_config import * +from .arrayprint import * +from .fromnumeric import * +from .numerictypes import * +from .umath import * + +extend_all(fromnumeric) +extend_all(umath) +extend_all(numerictypes) +extend_all(arrayprint) +extend_all(_asarray) +extend_all(_ufunc_config) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/numeric.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/numeric.pyi new file mode 100644 index 0000000000000000000000000000000000000000..4ad2881cf17e4ef88c1d1d4023c42720c1319068 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/numeric.pyi @@ -0,0 +1,1276 @@ +from _typeshed import Incomplete +from builtins import bool as py_bool +from collections.abc import Callable, Iterable, Sequence +from typing import ( + Any, + Final, + Literal as L, + SupportsAbs, + SupportsIndex, + TypeAlias, + TypeGuard, + TypeVar, + overload, +) + +import numpy as np +from numpy import ( + False_, + True_, + _OrderCF, + _OrderKACF, + bitwise_not, + inf, + little_endian, + nan, + newaxis, + ufunc, +) +from numpy._typing import ( + ArrayLike, + DTypeLike, + NDArray, + _ArrayLike, + _ArrayLikeBool_co, + _ArrayLikeComplex_co, + _ArrayLikeFloat_co, + _ArrayLikeInt_co, + _ArrayLikeNumber_co, + _ArrayLikeTD64_co, + _CDoubleCodes, + _Complex128Codes, + _DoubleCodes, + _DTypeLike, + _DTypeLikeBool, + _Float64Codes, + _IntCodes, + _NestedSequence, + _NumberLike_co, + _ScalarLike_co, + _Shape, + _ShapeLike, + _SupportsArray, + _SupportsArrayFunc, + _SupportsDType, +) + +from ._asarray import require +from ._ufunc_config import ( + errstate, + getbufsize, + geterr, + geterrcall, + setbufsize, + seterr, + seterrcall, +) +from .arrayprint import ( + array2string, + array_repr, + array_str, + format_float_positional, + format_float_scientific, + get_printoptions, + printoptions, + set_printoptions, +) +from .fromnumeric import ( + all, + amax, + amin, + any, + argmax, + argmin, + argpartition, + argsort, + around, + choose, + clip, + compress, + cumprod, + cumsum, + cumulative_prod, + cumulative_sum, + diagonal, + matrix_transpose, + max, + mean, + min, + ndim, + nonzero, + partition, + prod, + ptp, + put, + ravel, + repeat, + reshape, + resize, + round, + searchsorted, + shape, + size, + sort, + squeeze, + std, + sum, + swapaxes, + take, + trace, + transpose, + var, +) +from .multiarray import ( + ALLOW_THREADS as ALLOW_THREADS, + BUFSIZE as BUFSIZE, + CLIP as CLIP, + MAXDIMS as MAXDIMS, + MAY_SHARE_BOUNDS as MAY_SHARE_BOUNDS, + MAY_SHARE_EXACT as MAY_SHARE_EXACT, + RAISE as RAISE, + WRAP as WRAP, + _Array, + _ConstructorEmpty, + arange, + array, + asanyarray, + asarray, + ascontiguousarray, + asfortranarray, + broadcast, + can_cast, + concatenate, + copyto, + dot, + dtype, + empty, + empty_like, + flatiter, + from_dlpack, + frombuffer, + fromfile, + fromiter, + fromstring, + inner, + lexsort, + matmul, + may_share_memory, + min_scalar_type, + ndarray, + nditer, + nested_iters, + normalize_axis_index as normalize_axis_index, + promote_types, + putmask, + result_type, + shares_memory, + vdot, + where, + zeros, +) +from .numerictypes import ( + ScalarType, + bool, + bool_, + busday_count, + busday_offset, + busdaycalendar, + byte, + bytes_, + cdouble, + character, + clongdouble, + complex64, + complex128, + complex192, + complex256, + complexfloating, + csingle, + datetime64, + datetime_as_string, + datetime_data, + double, + flexible, + float16, + float32, + float64, + float96, + float128, + floating, + generic, + half, + inexact, + int8, + int16, + int32, + int64, + int_, + intc, + integer, + intp, + is_busday, + isdtype, + issubdtype, + long, + longdouble, + longlong, + number, + object_, + short, + signedinteger, + single, + str_, + timedelta64, + typecodes, + ubyte, + uint, + uint8, + uint16, + uint32, + uint64, + uintc, + uintp, + ulong, + ulonglong, + unsignedinteger, + ushort, + void, +) +from .umath import ( + absolute, + add, + arccos, + arccosh, + arcsin, + arcsinh, + arctan, + arctan2, + arctanh, + bitwise_and, + bitwise_count, + bitwise_or, + bitwise_xor, + cbrt, + ceil, + conj, + conjugate, + copysign, + cos, + cosh, + deg2rad, + degrees, + divide, + divmod, + e, + equal, + euler_gamma, + exp, + exp2, + expm1, + fabs, + float_power, + floor, + floor_divide, + fmax, + fmin, + fmod, + frexp, + frompyfunc, + gcd, + greater, + greater_equal, + heaviside, + hypot, + invert, + isfinite, + isinf, + isnan, + isnat, + lcm, + ldexp, + left_shift, + less, + less_equal, + log, + log1p, + log2, + log10, + logaddexp, + logaddexp2, + logical_and, + logical_not, + logical_or, + logical_xor, + matvec, + maximum, + minimum, + mod, + modf, + multiply, + negative, + nextafter, + not_equal, + pi, + positive, + power, + rad2deg, + radians, + reciprocal, + remainder, + right_shift, + rint, + sign, + signbit, + sin, + sinh, + spacing, + sqrt, + square, + subtract, + tan, + tanh, + true_divide, + trunc, + vecdot, + vecmat, +) + +__all__ = [ + "False_", + "ScalarType", + "True_", + "absolute", + "add", + "all", + "allclose", + "amax", + "amin", + "any", + "arange", + "arccos", + "arccosh", + "arcsin", + "arcsinh", + "arctan", + "arctan2", + "arctanh", + "argmax", + "argmin", + "argpartition", + "argsort", + "argwhere", + "around", + "array", + "array2string", + "array_equal", + "array_equiv", + "array_repr", + "array_str", + "asanyarray", + "asarray", + "ascontiguousarray", + "asfortranarray", + "astype", + "base_repr", + "binary_repr", + "bitwise_and", + "bitwise_count", + "bitwise_not", + "bitwise_or", + "bitwise_xor", + "bool", + "bool_", + "broadcast", + "busday_count", + "busday_offset", + "busdaycalendar", + "byte", + "bytes_", + "can_cast", + "cbrt", + "cdouble", + "ceil", + "character", + "choose", + "clip", + "clongdouble", + "complex64", + "complex128", + "complex192", + "complex256", + "complexfloating", + "compress", + "concatenate", + "conj", + "conjugate", + "convolve", + "copysign", + "copyto", + "correlate", + "cos", + "cosh", + "count_nonzero", + "cross", + "csingle", + "cumprod", + "cumsum", + "cumulative_prod", + "cumulative_sum", + "datetime64", + "datetime_as_string", + "datetime_data", + "deg2rad", + "degrees", + "diagonal", + "divide", + "divmod", + "dot", + "double", + "dtype", + "e", + "empty", + "empty_like", + "equal", + "errstate", + "euler_gamma", + "exp", + "exp2", + "expm1", + "fabs", + "flatiter", + "flatnonzero", + "flexible", + "float16", + "float32", + "float64", + "float96", + "float128", + "float_power", + "floating", + "floor", + "floor_divide", + "fmax", + "fmin", + "fmod", + "format_float_positional", + "format_float_scientific", + "frexp", + "from_dlpack", + "frombuffer", + "fromfile", + "fromfunction", + "fromiter", + "frompyfunc", + "fromstring", + "full", + "full_like", + "gcd", + "generic", + "get_printoptions", + "getbufsize", + "geterr", + "geterrcall", + "greater", + "greater_equal", + "half", + "heaviside", + "hypot", + "identity", + "indices", + "inexact", + "inf", + "inner", + "int8", + "int16", + "int32", + "int64", + "int_", + "intc", + "integer", + "intp", + "invert", + "is_busday", + "isclose", + "isdtype", + "isfinite", + "isfortran", + "isinf", + "isnan", + "isnat", + "isscalar", + "issubdtype", + "lcm", + "ldexp", + "left_shift", + "less", + "less_equal", + "lexsort", + "little_endian", + "log", + "log1p", + "log2", + "log10", + "logaddexp", + "logaddexp2", + "logical_and", + "logical_not", + "logical_or", + "logical_xor", + "long", + "longdouble", + "longlong", + "matmul", + "matrix_transpose", + "matvec", + "max", + "maximum", + "may_share_memory", + "mean", + "min", + "min_scalar_type", + "minimum", + "mod", + "modf", + "moveaxis", + "multiply", + "nan", + "ndarray", + "ndim", + "nditer", + "negative", + "nested_iters", + "newaxis", + "nextafter", + "nonzero", + "not_equal", + "number", + "object_", + "ones", + "ones_like", + "outer", + "partition", + "pi", + "positive", + "power", + "printoptions", + "prod", + "promote_types", + "ptp", + "put", + "putmask", + "rad2deg", + "radians", + "ravel", + "reciprocal", + "remainder", + "repeat", + "require", + "reshape", + "resize", + "result_type", + "right_shift", + "rint", + "roll", + "rollaxis", + "round", + "searchsorted", + "set_printoptions", + "setbufsize", + "seterr", + "seterrcall", + "shape", + "shares_memory", + "short", + "sign", + "signbit", + "signedinteger", + "sin", + "single", + "sinh", + "size", + "sort", + "spacing", + "sqrt", + "square", + "squeeze", + "std", + "str_", + "subtract", + "sum", + "swapaxes", + "take", + "tan", + "tanh", + "tensordot", + "timedelta64", + "trace", + "transpose", + "true_divide", + "trunc", + "typecodes", + "ubyte", + "ufunc", + "uint", + "uint8", + "uint16", + "uint32", + "uint64", + "uintc", + "uintp", + "ulong", + "ulonglong", + "unsignedinteger", + "ushort", + "var", + "vdot", + "vecdot", + "vecmat", + "void", + "where", + "zeros", + "zeros_like", +] + +_T = TypeVar("_T") +_ScalarT = TypeVar("_ScalarT", bound=generic) +_NumberObjectT = TypeVar("_NumberObjectT", bound=number | object_) +_NumericScalarT = TypeVar("_NumericScalarT", bound=number | timedelta64 | object_) +_DTypeT = TypeVar("_DTypeT", bound=dtype) +_ArrayT = TypeVar("_ArrayT", bound=np.ndarray[Any, Any]) +_ShapeT = TypeVar("_ShapeT", bound=_Shape) + +_AnyShapeT = TypeVar( + "_AnyShapeT", + tuple[()], + tuple[int], + tuple[int, int], + tuple[int, int, int], + tuple[int, int, int, int], + tuple[int, ...], +) +_AnyNumericScalarT = TypeVar( + "_AnyNumericScalarT", + np.int8, np.int16, np.int32, np.int64, + np.uint8, np.uint16, np.uint32, np.uint64, + np.float16, np.float32, np.float64, np.longdouble, + np.complex64, np.complex128, np.clongdouble, + np.timedelta64, + np.object_, +) + +_CorrelateMode: TypeAlias = L["valid", "same", "full"] + +_Array1D: TypeAlias = np.ndarray[tuple[int], np.dtype[_ScalarT]] +_Array2D: TypeAlias = np.ndarray[tuple[int, int], np.dtype[_ScalarT]] +_Array3D: TypeAlias = np.ndarray[tuple[int, int, int], np.dtype[_ScalarT]] +_Array4D: TypeAlias = np.ndarray[tuple[int, int, int, int], np.dtype[_ScalarT]] + +_Int_co: TypeAlias = np.integer | np.bool +_Float_co: TypeAlias = np.floating | _Int_co +_Number_co: TypeAlias = np.number | np.bool +_TD64_co: TypeAlias = np.timedelta64 | _Int_co + +_ArrayLike1D: TypeAlias = _SupportsArray[np.dtype[_ScalarT]] | Sequence[_ScalarT] +_ArrayLike1DBool_co: TypeAlias = _SupportsArray[np.dtype[np.bool]] | Sequence[py_bool | np.bool] +_ArrayLike1DInt_co: TypeAlias = _SupportsArray[np.dtype[_Int_co]] | Sequence[int | _Int_co] +_ArrayLike1DFloat_co: TypeAlias = _SupportsArray[np.dtype[_Float_co]] | Sequence[float | _Float_co] +_ArrayLike1DNumber_co: TypeAlias = _SupportsArray[np.dtype[_Number_co]] | Sequence[complex | _Number_co] +_ArrayLike1DTD64_co: TypeAlias = _ArrayLike1D[_TD64_co] +_ArrayLike1DObject_co: TypeAlias = _ArrayLike1D[np.object_] + +_DTypeLikeInt: TypeAlias = type[int] | _IntCodes +_DTypeLikeFloat64: TypeAlias = type[float] | _Float64Codes | _DoubleCodes +_DTypeLikeComplex128: TypeAlias = type[complex] | _Complex128Codes | _CDoubleCodes + +### + +# keep in sync with `ones_like` +@overload +def zeros_like( + a: _ArrayT, + dtype: None = None, + order: _OrderKACF = "K", + subok: L[True] = True, + shape: None = None, + *, + device: L["cpu"] | None = None, +) -> _ArrayT: ... +@overload +def zeros_like( + a: _ArrayLike[_ScalarT], + dtype: None = None, + order: _OrderKACF = "K", + subok: py_bool = True, + shape: _ShapeLike | None = None, + *, + device: L["cpu"] | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def zeros_like( + a: object, + dtype: _DTypeLike[_ScalarT], + order: _OrderKACF = "K", + subok: py_bool = True, + shape: _ShapeLike | None = None, + *, + device: L["cpu"] | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def zeros_like( + a: object, + dtype: DTypeLike | None = None, + order: _OrderKACF = "K", + subok: py_bool = True, + shape: _ShapeLike | None = None, + *, + device: L["cpu"] | None = None, +) -> NDArray[Any]: ... + +ones: Final[_ConstructorEmpty] + +# keep in sync with `zeros_like` +@overload +def ones_like( + a: _ArrayT, + dtype: None = None, + order: _OrderKACF = "K", + subok: L[True] = True, + shape: None = None, + *, + device: L["cpu"] | None = None, +) -> _ArrayT: ... +@overload +def ones_like( + a: _ArrayLike[_ScalarT], + dtype: None = None, + order: _OrderKACF = "K", + subok: py_bool = True, + shape: _ShapeLike | None = None, + *, + device: L["cpu"] | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def ones_like( + a: object, + dtype: _DTypeLike[_ScalarT], + order: _OrderKACF = "K", + subok: py_bool = True, + shape: _ShapeLike | None = None, + *, + device: L["cpu"] | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def ones_like( + a: object, + dtype: DTypeLike | None = None, + order: _OrderKACF = "K", + subok: py_bool = True, + shape: _ShapeLike | None = None, + *, + device: L["cpu"] | None = None, +) -> NDArray[Any]: ... + +# TODO: Add overloads for bool, int, float, complex, str, bytes, and memoryview +# 1-D shape +@overload +def full( + shape: SupportsIndex, + fill_value: _ScalarT, + dtype: None = None, + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array[tuple[int], _ScalarT]: ... +@overload +def full( + shape: SupportsIndex, + fill_value: Any, + dtype: _DTypeT | _SupportsDType[_DTypeT], + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> np.ndarray[tuple[int], _DTypeT]: ... +@overload +def full( + shape: SupportsIndex, + fill_value: Any, + dtype: type[_ScalarT], + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array[tuple[int], _ScalarT]: ... +@overload +def full( + shape: SupportsIndex, + fill_value: Any, + dtype: DTypeLike | None = None, + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array[tuple[int], Any]: ... +# known shape +@overload +def full( + shape: _AnyShapeT, + fill_value: _ScalarT, + dtype: None = None, + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array[_AnyShapeT, _ScalarT]: ... +@overload +def full( + shape: _AnyShapeT, + fill_value: Any, + dtype: _DTypeT | _SupportsDType[_DTypeT], + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> np.ndarray[_AnyShapeT, _DTypeT]: ... +@overload +def full( + shape: _AnyShapeT, + fill_value: Any, + dtype: type[_ScalarT], + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array[_AnyShapeT, _ScalarT]: ... +@overload +def full( + shape: _AnyShapeT, + fill_value: Any, + dtype: DTypeLike | None = None, + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> _Array[_AnyShapeT, Any]: ... +# unknown shape +@overload +def full( + shape: _ShapeLike, + fill_value: _ScalarT, + dtype: None = None, + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def full( + shape: _ShapeLike, + fill_value: Any, + dtype: _DTypeT | _SupportsDType[_DTypeT], + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> np.ndarray[Any, _DTypeT]: ... +@overload +def full( + shape: _ShapeLike, + fill_value: Any, + dtype: type[_ScalarT], + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def full( + shape: _ShapeLike, + fill_value: Any, + dtype: DTypeLike | None = None, + order: _OrderCF = "C", + *, + device: L["cpu"] | None = None, + like: _SupportsArrayFunc | None = None, +) -> NDArray[Any]: ... + +@overload +def full_like( + a: _ArrayT, + fill_value: object, + dtype: None = None, + order: _OrderKACF = "K", + subok: L[True] = True, + shape: None = None, + *, + device: L["cpu"] | None = None, +) -> _ArrayT: ... +@overload +def full_like( + a: _ArrayLike[_ScalarT], + fill_value: object, + dtype: None = None, + order: _OrderKACF = "K", + subok: py_bool = True, + shape: _ShapeLike | None = None, + *, + device: L["cpu"] | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def full_like( + a: object, + fill_value: object, + dtype: _DTypeLike[_ScalarT], + order: _OrderKACF = "K", + subok: py_bool = True, + shape: _ShapeLike | None = None, + *, + device: L["cpu"] | None = None, +) -> NDArray[_ScalarT]: ... +@overload +def full_like( + a: object, + fill_value: object, + dtype: DTypeLike | None = None, + order: _OrderKACF = "K", + subok: py_bool = True, + shape: _ShapeLike | None = None, + *, + device: L["cpu"] | None = None, +) -> NDArray[Any]: ... + +# +@overload +def count_nonzero(a: ArrayLike, axis: None = None, *, keepdims: L[False] = False) -> np.intp: ... +@overload +def count_nonzero(a: _ScalarLike_co, axis: _ShapeLike | None = None, *, keepdims: L[True]) -> np.intp: ... +@overload +def count_nonzero( + a: NDArray[Any] | _NestedSequence[ArrayLike], axis: _ShapeLike | None = None, *, keepdims: L[True] +) -> NDArray[np.intp]: ... +@overload +def count_nonzero(a: ArrayLike, axis: _ShapeLike | None = None, *, keepdims: py_bool = False) -> Any: ... + +# +def isfortran(a: ndarray | generic) -> py_bool: ... + +# +def argwhere(a: ArrayLike) -> _Array2D[np.intp]: ... +def flatnonzero(a: ArrayLike) -> _Array1D[np.intp]: ... + +# keep in sync with `convolve` +@overload +def correlate( + a: _ArrayLike1D[_AnyNumericScalarT], v: _ArrayLike1D[_AnyNumericScalarT], mode: _CorrelateMode = "valid" +) -> _Array1D[_AnyNumericScalarT]: ... +@overload +def correlate(a: _ArrayLike1DBool_co, v: _ArrayLike1DBool_co, mode: _CorrelateMode = "valid") -> _Array1D[np.bool]: ... +@overload +def correlate(a: _ArrayLike1DInt_co, v: _ArrayLike1DInt_co, mode: _CorrelateMode = "valid") -> _Array1D[np.int_ | Any]: ... +@overload +def correlate(a: _ArrayLike1DFloat_co, v: _ArrayLike1DFloat_co, mode: _CorrelateMode = "valid") -> _Array1D[np.float64 | Any]: ... +@overload +def correlate( + a: _ArrayLike1DNumber_co, v: _ArrayLike1DNumber_co, mode: _CorrelateMode = "valid" +) -> _Array1D[np.complex128 | Any]: ... +@overload +def correlate( + a: _ArrayLike1DTD64_co, v: _ArrayLike1DTD64_co, mode: _CorrelateMode = "valid" +) -> _Array1D[np.timedelta64 | Any]: ... + +# keep in sync with `correlate` +@overload +def convolve( + a: _ArrayLike1D[_AnyNumericScalarT], v: _ArrayLike1D[_AnyNumericScalarT], mode: _CorrelateMode = "valid" +) -> _Array1D[_AnyNumericScalarT]: ... +@overload +def convolve(a: _ArrayLike1DBool_co, v: _ArrayLike1DBool_co, mode: _CorrelateMode = "valid") -> _Array1D[np.bool]: ... +@overload +def convolve(a: _ArrayLike1DInt_co, v: _ArrayLike1DInt_co, mode: _CorrelateMode = "valid") -> _Array1D[np.int_ | Any]: ... +@overload +def convolve(a: _ArrayLike1DFloat_co, v: _ArrayLike1DFloat_co, mode: _CorrelateMode = "valid") -> _Array1D[np.float64 | Any]: ... +@overload +def convolve( + a: _ArrayLike1DNumber_co, v: _ArrayLike1DNumber_co, mode: _CorrelateMode = "valid" +) -> _Array1D[np.complex128 | Any]: ... +@overload +def convolve( + a: _ArrayLike1DTD64_co, v: _ArrayLike1DTD64_co, mode: _CorrelateMode = "valid" +) -> _Array1D[np.timedelta64 | Any]: ... + +# keep roughly in sync with `convolve` and `correlate`, but for 2-D output and an additional `out` overload +@overload +def outer( + a: _ArrayLike[_AnyNumericScalarT], b: _ArrayLike[_AnyNumericScalarT], out: None = None +) -> _Array2D[_AnyNumericScalarT]: ... +@overload +def outer(a: _ArrayLikeBool_co, b: _ArrayLikeBool_co, out: None = None) -> _Array2D[np.bool]: ... +@overload +def outer(a: _ArrayLikeInt_co, b: _ArrayLikeInt_co, out: None = None) -> _Array2D[np.int_ | Any]: ... +@overload +def outer(a: _ArrayLikeFloat_co, b: _ArrayLikeFloat_co, out: None = None) -> _Array2D[np.float64 | Any]: ... +@overload +def outer(a: _ArrayLikeComplex_co, b: _ArrayLikeComplex_co, out: None = None) -> _Array2D[np.complex128 | Any]: ... +@overload +def outer(a: _ArrayLikeTD64_co, b: _ArrayLikeTD64_co, out: None = None) -> _Array2D[np.timedelta64 | Any]: ... +@overload +def outer(a: _ArrayLikeNumber_co | _ArrayLikeTD64_co, b: _ArrayLikeNumber_co | _ArrayLikeTD64_co, out: _ArrayT) -> _ArrayT: ... + +# keep in sync with numpy.linalg._linalg.tensordot (ignoring `/, *`) +@overload +def tensordot( + a: _ArrayLike[_AnyNumericScalarT], b: _ArrayLike[_AnyNumericScalarT], axes: int | tuple[_ShapeLike, _ShapeLike] = 2 +) -> NDArray[_AnyNumericScalarT]: ... +@overload +def tensordot(a: _ArrayLikeBool_co, b: _ArrayLikeBool_co, axes: int | tuple[_ShapeLike, _ShapeLike] = 2) -> NDArray[np.bool]: ... +@overload +def tensordot( + a: _ArrayLikeInt_co, b: _ArrayLikeInt_co, axes: int | tuple[_ShapeLike, _ShapeLike] = 2 +) -> NDArray[np.int_ | Any]: ... +@overload +def tensordot( + a: _ArrayLikeFloat_co, b: _ArrayLikeFloat_co, axes: int | tuple[_ShapeLike, _ShapeLike] = 2 +) -> NDArray[np.float64 | Any]: ... +@overload +def tensordot( + a: _ArrayLikeComplex_co, b: _ArrayLikeComplex_co, axes: int | tuple[_ShapeLike, _ShapeLike] = 2 +) -> NDArray[np.complex128 | Any]: ... + +# +@overload +def cross( + a: _ArrayLike[_AnyNumericScalarT], + b: _ArrayLike[_AnyNumericScalarT], + axisa: int = -1, + axisb: int = -1, + axisc: int = -1, + axis: int | None = None, +) -> NDArray[_AnyNumericScalarT]: ... +@overload +def cross( + a: _ArrayLikeInt_co, + b: _ArrayLikeInt_co, + axisa: int = -1, + axisb: int = -1, + axisc: int = -1, + axis: int | None = None, +) -> NDArray[np.int_ | Any]: ... +@overload +def cross( + a: _ArrayLikeFloat_co, + b: _ArrayLikeFloat_co, + axisa: int = -1, + axisb: int = -1, + axisc: int = -1, + axis: int | None = None, +) -> NDArray[np.float64 | Any]: ... +@overload +def cross( + a: _ArrayLikeComplex_co, + b: _ArrayLikeComplex_co, + axisa: int = -1, + axisb: int = -1, + axisc: int = -1, + axis: int | None = None, +) -> NDArray[np.complex128 | Any]: ... + +# +@overload +def roll(a: _ArrayT, shift: _ShapeLike, axis: _ShapeLike | None = None) -> _ArrayT: ... +@overload +def roll(a: _ArrayLike[_ScalarT], shift: _ShapeLike, axis: _ShapeLike | None = None) -> NDArray[_ScalarT]: ... +@overload +def roll(a: ArrayLike, shift: _ShapeLike, axis: _ShapeLike | None = None) -> NDArray[Any]: ... + +# +def rollaxis(a: _ArrayT, axis: int, start: int = 0) -> _ArrayT: ... +def moveaxis(a: _ArrayT, source: _ShapeLike, destination: _ShapeLike) -> _ArrayT: ... +def normalize_axis_tuple( + axis: int | Iterable[int], + ndim: int, + argname: str | None = None, + allow_duplicate: py_bool | None = False, +) -> tuple[int, ...]: ... + +# +@overload # 0d, dtype=int (default), sparse=False (default) +def indices(dimensions: tuple[()], dtype: type[int] = int, sparse: L[False] = False) -> _Array1D[np.intp]: ... +@overload # 0d, dtype=, sparse=True +def indices(dimensions: tuple[()], dtype: DTypeLike | None = int, *, sparse: L[True]) -> tuple[()]: ... +@overload # 0d, dtype=, sparse=False (default) +def indices(dimensions: tuple[()], dtype: _DTypeLike[_ScalarT], sparse: L[False] = False) -> _Array1D[_ScalarT]: ... +@overload # 0d, dtype=, sparse=False (default) +def indices(dimensions: tuple[()], dtype: DTypeLike, sparse: L[False] = False) -> _Array1D[Any]: ... +@overload # 1d, dtype=int (default), sparse=False (default) +def indices(dimensions: tuple[int], dtype: type[int] = int, sparse: L[False] = False) -> _Array2D[np.intp]: ... +@overload # 1d, dtype=int (default), sparse=True +def indices(dimensions: tuple[int], dtype: type[int] = int, *, sparse: L[True]) -> tuple[_Array1D[np.intp]]: ... +@overload # 1d, dtype=, sparse=False (default) +def indices(dimensions: tuple[int], dtype: _DTypeLike[_ScalarT], sparse: L[False] = False) -> _Array2D[_ScalarT]: ... +@overload # 1d, dtype=, sparse=True +def indices(dimensions: tuple[int], dtype: _DTypeLike[_ScalarT], sparse: L[True]) -> tuple[_Array1D[_ScalarT]]: ... +@overload # 1d, dtype=, sparse=False (default) +def indices(dimensions: tuple[int], dtype: DTypeLike, sparse: L[False] = False) -> _Array2D[Any]: ... +@overload # 1d, dtype=, sparse=True +def indices(dimensions: tuple[int], dtype: DTypeLike, sparse: L[True]) -> tuple[_Array1D[Any]]: ... +@overload # 2d, dtype=int (default), sparse=False (default) +def indices(dimensions: tuple[int, int], dtype: type[int] = int, sparse: L[False] = False) -> _Array3D[np.intp]: ... +@overload # 2d, dtype=int (default), sparse=True +def indices( + dimensions: tuple[int, int], dtype: type[int] = int, *, sparse: L[True] +) -> tuple[_Array2D[np.intp], _Array2D[np.intp]]: ... +@overload # 2d, dtype=, sparse=False (default) +def indices(dimensions: tuple[int, int], dtype: _DTypeLike[_ScalarT], sparse: L[False] = False) -> _Array3D[_ScalarT]: ... +@overload # 2d, dtype=, sparse=True +def indices( + dimensions: tuple[int, int], dtype: _DTypeLike[_ScalarT], sparse: L[True] +) -> tuple[_Array2D[_ScalarT], _Array2D[_ScalarT]]: ... +@overload # 2d, dtype=, sparse=False (default) +def indices(dimensions: tuple[int, int], dtype: DTypeLike, sparse: L[False] = False) -> _Array3D[Any]: ... +@overload # 2d, dtype=, sparse=True +def indices(dimensions: tuple[int, int], dtype: DTypeLike, sparse: L[True]) -> tuple[_Array2D[Any], _Array2D[Any]]: ... +@overload # ?d, dtype=int (default), sparse=False (default) +def indices(dimensions: Sequence[int], dtype: type[int] = int, sparse: L[False] = False) -> NDArray[np.intp]: ... +@overload # ?d, dtype=int (default), sparse=True +def indices(dimensions: Sequence[int], dtype: type[int] = int, *, sparse: L[True]) -> tuple[NDArray[np.intp], ...]: ... +@overload # ?d, dtype=, sparse=False (default) +def indices(dimensions: Sequence[int], dtype: _DTypeLike[_ScalarT], sparse: L[False] = False) -> NDArray[_ScalarT]: ... +@overload # ?d, dtype=, sparse=True +def indices(dimensions: Sequence[int], dtype: _DTypeLike[_ScalarT], sparse: L[True]) -> tuple[NDArray[_ScalarT], ...]: ... +@overload # ?d, dtype=, sparse=False (default) +def indices(dimensions: Sequence[int], dtype: DTypeLike, sparse: L[False] = False) -> ndarray: ... +@overload # ?d, dtype=, sparse=True +def indices(dimensions: Sequence[int], dtype: DTypeLike, sparse: L[True]) -> tuple[ndarray, ...]: ... + +# +def fromfunction( + function: Callable[..., _T], + shape: Sequence[int], + *, + dtype: DTypeLike | None = float, + like: _SupportsArrayFunc | None = None, + **kwargs: object, +) -> _T: ... + +# +def isscalar(element: object) -> TypeGuard[generic | complex | str | bytes | memoryview]: ... + +# +def binary_repr(num: SupportsIndex, width: int | None = None) -> str: ... +def base_repr(number: SupportsAbs[float], base: float = 2, padding: SupportsIndex | None = 0) -> str: ... + +# +@overload # dtype: None (default) +def identity(n: int, dtype: None = None, *, like: _SupportsArrayFunc | None = None) -> _Array2D[np.float64]: ... +@overload # dtype: known scalar type +def identity(n: int, dtype: _DTypeLike[_ScalarT], *, like: _SupportsArrayFunc | None = None) -> _Array2D[_ScalarT]: ... +@overload # dtype: like bool +def identity(n: int, dtype: _DTypeLikeBool, *, like: _SupportsArrayFunc | None = None) -> _Array2D[np.bool]: ... +@overload # dtype: like int_ +def identity(n: int, dtype: _DTypeLikeInt, *, like: _SupportsArrayFunc | None = None) -> _Array2D[np.int_ | Any]: ... +@overload # dtype: like float64 +def identity(n: int, dtype: _DTypeLikeFloat64, *, like: _SupportsArrayFunc | None = None) -> _Array2D[np.float64 | Any]: ... +@overload # dtype: like complex128 +def identity(n: int, dtype: _DTypeLikeComplex128, *, like: _SupportsArrayFunc | None = None) -> _Array2D[np.complex128 | Any]: ... +@overload # dtype: unknown +def identity(n: int, dtype: DTypeLike, *, like: _SupportsArrayFunc | None = None) -> _Array2D[Incomplete]: ... + +# +def allclose( + a: ArrayLike, + b: ArrayLike, + rtol: ArrayLike = 1e-5, + atol: ArrayLike = 1e-8, + equal_nan: py_bool = False, +) -> py_bool: ... + +# +@overload # scalar, scalar +def isclose( + a: _NumberLike_co, + b: _NumberLike_co, + rtol: ArrayLike = 1e-5, + atol: ArrayLike = 1e-8, + equal_nan: py_bool = False, +) -> np.bool: ... +@overload # known shape, same shape or scalar +def isclose( + a: np.ndarray[_ShapeT], + b: np.ndarray[_ShapeT] | _NumberLike_co, + rtol: ArrayLike = 1e-5, + atol: ArrayLike = 1e-8, + equal_nan: py_bool = False, +) -> np.ndarray[_ShapeT, np.dtype[np.bool]]: ... +@overload # same shape or scalar, known shape +def isclose( + a: np.ndarray[_ShapeT] | _NumberLike_co, + b: np.ndarray[_ShapeT], + rtol: ArrayLike = 1e-5, + atol: ArrayLike = 1e-8, + equal_nan: py_bool = False, +) -> np.ndarray[_ShapeT, np.dtype[np.bool]]: ... +@overload # 1d sequence, <=1d array-like +def isclose( + a: Sequence[_NumberLike_co], + b: Sequence[_NumberLike_co] | _NumberLike_co | np.ndarray[tuple[int]], + rtol: ArrayLike = 1e-5, + atol: ArrayLike = 1e-8, + equal_nan: py_bool = False, +) -> np.ndarray[tuple[int], np.dtype[np.bool]]: ... +@overload # <=1d array-like, 1d sequence +def isclose( + a: Sequence[_NumberLike_co] | _NumberLike_co | np.ndarray[tuple[int]], + b: Sequence[_NumberLike_co], + rtol: ArrayLike = 1e-5, + atol: ArrayLike = 1e-8, + equal_nan: py_bool = False, +) -> np.ndarray[tuple[int], np.dtype[np.bool]]: ... +@overload # 2d sequence, <=2d array-like +def isclose( + a: Sequence[Sequence[_NumberLike_co]], + b: Sequence[Sequence[_NumberLike_co]] | Sequence[_NumberLike_co] | _NumberLike_co | np.ndarray[tuple[int] | tuple[int, int]], + rtol: ArrayLike = 1e-5, + atol: ArrayLike = 1e-8, + equal_nan: py_bool = False, +) -> np.ndarray[tuple[int], np.dtype[np.bool]]: ... +@overload # <=2d array-like, 2d sequence +def isclose( + b: Sequence[Sequence[_NumberLike_co]] | Sequence[_NumberLike_co] | _NumberLike_co | np.ndarray[tuple[int] | tuple[int, int]], + a: Sequence[Sequence[_NumberLike_co]], + rtol: ArrayLike = 1e-5, + atol: ArrayLike = 1e-8, + equal_nan: py_bool = False, +) -> np.ndarray[tuple[int], np.dtype[np.bool]]: ... +@overload # unknown shape, unknown shape +def isclose( + a: ArrayLike, + b: ArrayLike, + rtol: ArrayLike = 1e-5, + atol: ArrayLike = 1e-8, + equal_nan: py_bool = False, +) -> NDArray[np.bool] | Any: ... + +# +def array_equal(a1: ArrayLike, a2: ArrayLike, equal_nan: py_bool = False) -> py_bool: ... +def array_equiv(a1: ArrayLike, a2: ArrayLike) -> py_bool: ... + +# +@overload +def astype( + x: ndarray[_ShapeT], + dtype: _DTypeLike[_ScalarT], + /, + *, + copy: py_bool = True, + device: L["cpu"] | None = None, +) -> ndarray[_ShapeT, dtype[_ScalarT]]: ... +@overload +def astype( + x: ndarray[_ShapeT], + dtype: DTypeLike | None, + /, + *, + copy: py_bool = True, + device: L["cpu"] | None = None, +) -> ndarray[_ShapeT]: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/numerictypes.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/numerictypes.py new file mode 100644 index 0000000000000000000000000000000000000000..265ad4f8eb1f578e53625b5c832a866bb4a5ed5c --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/numerictypes.py @@ -0,0 +1,633 @@ +""" +numerictypes: Define the numeric type objects + +This module is designed so "from numerictypes import \\*" is safe. +Exported symbols include: + + Dictionary with all registered number types (including aliases): + sctypeDict + + Type objects (not all will be available, depends on platform): + see variable sctypes for which ones you have + + Bit-width names + + int8 int16 int32 int64 + uint8 uint16 uint32 uint64 + float16 float32 float64 float96 float128 + complex64 complex128 complex192 complex256 + datetime64 timedelta64 + + c-based names + + bool + + object_ + + void, str_ + + byte, ubyte, + short, ushort + intc, uintc, + intp, uintp, + int_, uint, + longlong, ulonglong, + + single, csingle, + double, cdouble, + longdouble, clongdouble, + + As part of the type-hierarchy: xx -- is bit-width + + generic + +-> bool (kind=b) + +-> number + | +-> integer + | | +-> signedinteger (intxx) (kind=i) + | | | byte + | | | short + | | | intc + | | | intp + | | | int_ + | | | longlong + | | \\-> unsignedinteger (uintxx) (kind=u) + | | ubyte + | | ushort + | | uintc + | | uintp + | | uint + | | ulonglong + | +-> inexact + | +-> floating (floatxx) (kind=f) + | | half + | | single + | | double + | | longdouble + | \\-> complexfloating (complexxx) (kind=c) + | csingle + | cdouble + | clongdouble + +-> flexible + | +-> character + | | bytes_ (kind=S) + | | str_ (kind=U) + | | + | \\-> void (kind=V) + \\-> object_ (not used much) (kind=O) + +""" +import numbers +import warnings + +from numpy._utils import set_module + +from . import multiarray as ma +from .multiarray import ( + busday_count, + busday_offset, + busdaycalendar, + datetime_as_string, + datetime_data, + dtype, + is_busday, + ndarray, +) + +# we add more at the bottom +__all__ = [ + 'ScalarType', 'typecodes', 'issubdtype', 'datetime_data', + 'datetime_as_string', 'busday_offset', 'busday_count', + 'is_busday', 'busdaycalendar', 'isdtype' +] + +# we don't need all these imports, but we need to keep them for compatibility +# for users using np._core.numerictypes.UPPER_TABLE +# we don't export these for import *, but we do want them accessible +# as numerictypes.bool, etc. +from builtins import bool, bytes, complex, float, int, object, str # noqa: F401, UP029 + +from ._dtype import _kind_name +from ._string_helpers import ( # noqa: F401 + LOWER_TABLE, + UPPER_TABLE, + english_capitalize, + english_lower, + english_upper, +) +from ._type_aliases import allTypes, sctypeDict, sctypes + +# We use this later +generic = allTypes['generic'] + +genericTypeRank = ['bool', 'int8', 'uint8', 'int16', 'uint16', + 'int32', 'uint32', 'int64', 'uint64', + 'float16', 'float32', 'float64', 'float96', 'float128', + 'complex64', 'complex128', 'complex192', 'complex256', + 'object'] + +@set_module('numpy') +def maximum_sctype(t): + """ + Return the scalar type of highest precision of the same kind as the input. + + .. deprecated:: 2.0 + Use an explicit dtype like int64 or float64 instead. + + Parameters + ---------- + t : dtype or dtype specifier + The input data type. This can be a `dtype` object or an object that + is convertible to a `dtype`. + + Returns + ------- + out : dtype + The highest precision data type of the same kind (`dtype.kind`) as `t`. + + See Also + -------- + obj2sctype, mintypecode, sctype2char + dtype + + Examples + -------- + >>> from numpy._core.numerictypes import maximum_sctype + >>> maximum_sctype(int) + + >>> maximum_sctype(np.uint8) + + >>> maximum_sctype(complex) + # may vary + + >>> maximum_sctype(str) + + + >>> maximum_sctype('i2') + + >>> maximum_sctype('f4') + # may vary + + """ + + # Deprecated in NumPy 2.0, 2023-07-11 + warnings.warn( + "`maximum_sctype` is deprecated. Use an explicit dtype like int64 " + "or float64 instead. (deprecated in NumPy 2.0)", + DeprecationWarning, + stacklevel=2 + ) + + g = obj2sctype(t) + if g is None: + return t + t = g + base = _kind_name(dtype(t)) + if base in sctypes: + return sctypes[base][-1] + else: + return t + + +@set_module('numpy') +def issctype(rep): + """ + Determines whether the given object represents a scalar data-type. + + Parameters + ---------- + rep : any + If `rep` is an instance of a scalar dtype, True is returned. If not, + False is returned. + + Returns + ------- + out : bool + Boolean result of check whether `rep` is a scalar dtype. + + See Also + -------- + issubsctype, issubdtype, obj2sctype, sctype2char + + Examples + -------- + >>> from numpy._core.numerictypes import issctype + >>> issctype(np.int32) + True + >>> issctype(list) + False + >>> issctype(1.1) + False + + Strings are also a scalar type: + + >>> issctype(np.dtype('str')) + True + + """ + if not isinstance(rep, (type, dtype)): + return False + try: + res = obj2sctype(rep) + if res and res != object_: + return True + else: + return False + except Exception: + return False + + +def obj2sctype(rep, default=None): + """ + Return the scalar dtype or NumPy equivalent of Python type of an object. + + Parameters + ---------- + rep : any + The object of which the type is returned. + default : any, optional + If given, this is returned for objects whose types can not be + determined. If not given, None is returned for those objects. + + Returns + ------- + dtype : dtype or Python type + The data type of `rep`. + + See Also + -------- + sctype2char, issctype, issubsctype, issubdtype + + Examples + -------- + >>> from numpy._core.numerictypes import obj2sctype + >>> obj2sctype(np.int32) + + >>> obj2sctype(np.array([1., 2.])) + + >>> obj2sctype(np.array([1.j])) + + + >>> obj2sctype(dict) + + >>> obj2sctype('string') + + >>> obj2sctype(1, default=list) + + + """ + # prevent abstract classes being upcast + if isinstance(rep, type) and issubclass(rep, generic): + return rep + # extract dtype from arrays + if isinstance(rep, ndarray): + return rep.dtype.type + # fall back on dtype to convert + try: + res = dtype(rep) + except Exception: + return default + else: + return res.type + + +@set_module('numpy') +def issubclass_(arg1, arg2): + """ + Determine if a class is a subclass of a second class. + + `issubclass_` is equivalent to the Python built-in ``issubclass``, + except that it returns False instead of raising a TypeError if one + of the arguments is not a class. + + Parameters + ---------- + arg1 : class + Input class. True is returned if `arg1` is a subclass of `arg2`. + arg2 : class or tuple of classes. + Input class. If a tuple of classes, True is returned if `arg1` is a + subclass of any of the tuple elements. + + Returns + ------- + out : bool + Whether `arg1` is a subclass of `arg2` or not. + + See Also + -------- + issubsctype, issubdtype, issctype + + Examples + -------- + >>> np.issubclass_(np.int32, int) + False + >>> np.issubclass_(np.int32, float) + False + >>> np.issubclass_(np.float64, float) + True + + """ + try: + return issubclass(arg1, arg2) + except TypeError: + return False + + +@set_module('numpy') +def issubsctype(arg1, arg2): + """ + Determine if the first argument is a subclass of the second argument. + + Parameters + ---------- + arg1, arg2 : dtype or dtype specifier + Data-types. + + Returns + ------- + out : bool + The result. + + See Also + -------- + issctype, issubdtype, obj2sctype + + Examples + -------- + >>> from numpy._core import issubsctype + >>> issubsctype('S8', str) + False + >>> issubsctype(np.array([1]), int) + True + >>> issubsctype(np.array([1]), float) + False + + """ + return issubclass(obj2sctype(arg1), obj2sctype(arg2)) + + +class _PreprocessDTypeError(Exception): + pass + + +def _preprocess_dtype(dtype): + """ + Preprocess dtype argument by: + 1. fetching type from a data type + 2. verifying that types are built-in NumPy dtypes + """ + if isinstance(dtype, ma.dtype): + dtype = dtype.type + if isinstance(dtype, ndarray) or dtype not in allTypes.values(): + raise _PreprocessDTypeError + return dtype + + +@set_module('numpy') +def isdtype(dtype, kind): + """ + Determine if a provided dtype is of a specified data type ``kind``. + + This function only supports built-in NumPy's data types. + Third-party dtypes are not yet supported. + + Parameters + ---------- + dtype : dtype + The input dtype. + kind : dtype or str or tuple of dtypes/strs. + dtype or dtype kind. Allowed dtype kinds are: + * ``'bool'`` : boolean kind + * ``'signed integer'`` : signed integer data types + * ``'unsigned integer'`` : unsigned integer data types + * ``'integral'`` : integer data types + * ``'real floating'`` : real-valued floating-point data types + * ``'complex floating'`` : complex floating-point data types + * ``'numeric'`` : numeric data types + + Returns + ------- + out : bool + + See Also + -------- + issubdtype + + Examples + -------- + >>> import numpy as np + >>> np.isdtype(np.float32, np.float64) + False + >>> np.isdtype(np.float32, "real floating") + True + >>> np.isdtype(np.complex128, ("real floating", "complex floating")) + True + + """ + try: + dtype = _preprocess_dtype(dtype) + except _PreprocessDTypeError: + raise TypeError( + "dtype argument must be a NumPy dtype, " + f"but it is a {type(dtype)}." + ) from None + + input_kinds = kind if isinstance(kind, tuple) else (kind,) + + processed_kinds = set() + + for kind in input_kinds: + if kind == "bool": + processed_kinds.add(allTypes["bool"]) + elif kind == "signed integer": + processed_kinds.update(sctypes["int"]) + elif kind == "unsigned integer": + processed_kinds.update(sctypes["uint"]) + elif kind == "integral": + processed_kinds.update(sctypes["int"] + sctypes["uint"]) + elif kind == "real floating": + processed_kinds.update(sctypes["float"]) + elif kind == "complex floating": + processed_kinds.update(sctypes["complex"]) + elif kind == "numeric": + processed_kinds.update( + sctypes["int"] + sctypes["uint"] + + sctypes["float"] + sctypes["complex"] + ) + elif isinstance(kind, str): + raise ValueError( + "kind argument is a string, but" + f" {kind!r} is not a known kind name." + ) + else: + try: + kind = _preprocess_dtype(kind) + except _PreprocessDTypeError: + raise TypeError( + "kind argument must be comprised of " + "NumPy dtypes or strings only, " + f"but is a {type(kind)}." + ) from None + processed_kinds.add(kind) + + return dtype in processed_kinds + + +@set_module('numpy') +def issubdtype(arg1, arg2): + r""" + Returns True if first argument is a typecode lower/equal in type hierarchy. + + This is like the builtin :func:`issubclass`, but for `dtype`\ s. + + Parameters + ---------- + arg1, arg2 : dtype_like + `dtype` or object coercible to one + + Returns + ------- + out : bool + + See Also + -------- + :ref:`arrays.scalars` : Overview of the numpy type hierarchy. + + Examples + -------- + `issubdtype` can be used to check the type of arrays: + + >>> ints = np.array([1, 2, 3], dtype=np.int32) + >>> np.issubdtype(ints.dtype, np.integer) + True + >>> np.issubdtype(ints.dtype, np.floating) + False + + >>> floats = np.array([1, 2, 3], dtype=np.float32) + >>> np.issubdtype(floats.dtype, np.integer) + False + >>> np.issubdtype(floats.dtype, np.floating) + True + + Similar types of different sizes are not subdtypes of each other: + + >>> np.issubdtype(np.float64, np.float32) + False + >>> np.issubdtype(np.float32, np.float64) + False + + but both are subtypes of `floating`: + + >>> np.issubdtype(np.float64, np.floating) + True + >>> np.issubdtype(np.float32, np.floating) + True + + For convenience, dtype-like objects are allowed too: + + >>> np.issubdtype('S1', np.bytes_) + True + >>> np.issubdtype('i4', np.signedinteger) + True + + """ + if not issubclass_(arg1, generic): + arg1 = dtype(arg1).type + if not issubclass_(arg2, generic): + arg2 = dtype(arg2).type + + return issubclass(arg1, arg2) + + +@set_module('numpy') +def sctype2char(sctype): + """ + Return the string representation of a scalar dtype. + + Parameters + ---------- + sctype : scalar dtype or object + If a scalar dtype, the corresponding string character is + returned. If an object, `sctype2char` tries to infer its scalar type + and then return the corresponding string character. + + Returns + ------- + typechar : str + The string character corresponding to the scalar type. + + Raises + ------ + ValueError + If `sctype` is an object for which the type can not be inferred. + + See Also + -------- + obj2sctype, issctype, issubsctype, mintypecode + + Examples + -------- + >>> from numpy._core.numerictypes import sctype2char + >>> for sctype in [np.int32, np.double, np.cdouble, np.bytes_, np.ndarray]: + ... print(sctype2char(sctype)) + l # may vary + d + D + S + O + + >>> x = np.array([1., 2-1.j]) + >>> sctype2char(x) + 'D' + >>> sctype2char(list) + 'O' + + """ + sctype = obj2sctype(sctype) + if sctype is None: + raise ValueError("unrecognized type") + if sctype not in sctypeDict.values(): + # for compatibility + raise KeyError(sctype) + return dtype(sctype).char + + +def _scalar_type_key(typ): + """A ``key`` function for `sorted`.""" + dt = dtype(typ) + return (dt.kind.lower(), dt.itemsize) + + +ScalarType = [int, float, complex, bool, bytes, str, memoryview] +ScalarType += sorted(dict.fromkeys(sctypeDict.values()), key=_scalar_type_key) +ScalarType = tuple(ScalarType) + + +# Now add the types we've determined to this module +for key in allTypes: + globals()[key] = allTypes[key] + __all__.append(key) + +del key + +typecodes = {'Character': 'c', + 'Integer': 'bhilqnp', + 'UnsignedInteger': 'BHILQNP', + 'Float': 'efdg', + 'Complex': 'FDG', + 'AllInteger': 'bBhHiIlLqQnNpP', + 'AllFloat': 'efdgFDG', + 'Datetime': 'Mm', + 'All': '?bhilqnpBHILQNPefdgFDGSUVOMm'} + +# backwards compatibility --- deprecated name +# Formal deprecation: Numpy 1.20.0, 2020-10-19 (see numpy/__init__.py) +typeDict = sctypeDict + +def _register_types(): + numbers.Integral.register(integer) + numbers.Complex.register(inexact) + numbers.Real.register(floating) + numbers.Number.register(number) + + +_register_types() diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/numerictypes.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/numerictypes.pyi new file mode 100644 index 0000000000000000000000000000000000000000..46bb6a379861b3db8008e9e6415d714ae9684e36 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/numerictypes.pyi @@ -0,0 +1,196 @@ +from builtins import bool as py_bool +from typing import Any, Final, Literal as L, TypedDict, type_check_only + +import numpy as np +from numpy import ( + bool, + bool_, + byte, + bytes_, + cdouble, + character, + clongdouble, + complex64, + complex128, + complex192, + complex256, + complexfloating, + csingle, + datetime64, + double, + dtype, + flexible, + float16, + float32, + float64, + float96, + float128, + floating, + generic, + half, + inexact, + int8, + int16, + int32, + int64, + int_, + intc, + integer, + intp, + long, + longdouble, + longlong, + number, + object_, + short, + signedinteger, + single, + str_, + timedelta64, + ubyte, + uint, + uint8, + uint16, + uint32, + uint64, + uintc, + uintp, + ulong, + ulonglong, + unsignedinteger, + ushort, + void, +) +from numpy._typing import DTypeLike + +from ._type_aliases import sctypeDict as sctypeDict +from .multiarray import ( + busday_count, + busday_offset, + busdaycalendar, + datetime_as_string, + datetime_data, + is_busday, +) + +__all__ = [ + "ScalarType", + "typecodes", + "issubdtype", + "datetime_data", + "datetime_as_string", + "busday_offset", + "busday_count", + "is_busday", + "busdaycalendar", + "isdtype", + "generic", + "unsignedinteger", + "character", + "inexact", + "number", + "integer", + "flexible", + "complexfloating", + "signedinteger", + "floating", + "bool", + "float16", + "float32", + "float64", + "longdouble", + "complex64", + "complex128", + "clongdouble", + "bytes_", + "str_", + "void", + "object_", + "datetime64", + "timedelta64", + "int8", + "byte", + "uint8", + "ubyte", + "int16", + "short", + "uint16", + "ushort", + "int32", + "intc", + "uint32", + "uintc", + "int64", + "long", + "uint64", + "ulong", + "longlong", + "ulonglong", + "intp", + "uintp", + "double", + "cdouble", + "single", + "csingle", + "half", + "bool_", + "int_", + "uint", + "float96", + "float128", + "complex192", + "complex256", +] + +@type_check_only +class _TypeCodes(TypedDict): + Character: L["c"] + Integer: L["bhilqnp"] + UnsignedInteger: L["BHILQNP"] + Float: L["efdg"] + Complex: L["FDG"] + AllInteger: L["bBhHiIlLqQnNpP"] + AllFloat: L["efdgFDG"] + Datetime: L["Mm"] + All: L["?bhilqnpBHILQNPefdgFDGSUVOMm"] + +def isdtype(dtype: dtype | type, kind: DTypeLike | tuple[DTypeLike, ...]) -> py_bool: ... +def issubdtype(arg1: DTypeLike | None, arg2: DTypeLike | None) -> py_bool: ... + +typecodes: Final[_TypeCodes] = ... +ScalarType: Final[ + tuple[ + type[int], + type[float], + type[complex], + type[py_bool], + type[bytes], + type[str], + type[memoryview[Any]], + type[np.bool], + type[complex64], + type[complex128], + type[complex128 | complex192 | complex256], + type[float16], + type[float32], + type[float64], + type[float64 | float96 | float128], + type[int8], + type[int16], + type[int32], + type[int32 | int64], + type[int64], + type[datetime64], + type[timedelta64], + type[object_], + type[bytes_], + type[str_], + type[uint8], + type[uint16], + type[uint32], + type[uint32 | uint64], + type[uint64], + type[void], + ] +] = ... +typeDict: Final = sctypeDict diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/overrides.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/overrides.py new file mode 100644 index 0000000000000000000000000000000000000000..6d5e7750b09bf3539916aa2a97f88cb29ded6acc --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/overrides.py @@ -0,0 +1,188 @@ +"""Implementation of __array_function__ overrides from NEP-18.""" +import collections +import functools +import inspect + +from numpy._core._multiarray_umath import ( + _ArrayFunctionDispatcher, + _get_implementing_args, + add_docstring, +) +from numpy._utils import set_module # noqa: F401 +from numpy._utils._inspect import getargspec + +ARRAY_FUNCTIONS = set() + +array_function_like_doc = ( + """like : array_like, optional + Reference object to allow the creation of arrays which are not + NumPy arrays. If an array-like passed in as ``like`` supports + the ``__array_function__`` protocol, the result will be defined + by it. In this case, it ensures the creation of an array object + compatible with that passed in via this argument.""" +) + +def get_array_function_like_doc(public_api, docstring_template=""): + ARRAY_FUNCTIONS.add(public_api) + docstring = public_api.__doc__ or docstring_template + return docstring.replace("${ARRAY_FUNCTION_LIKE}", array_function_like_doc) + +def finalize_array_function_like(public_api): + public_api.__doc__ = get_array_function_like_doc(public_api) + return public_api + + +add_docstring( + _ArrayFunctionDispatcher, + """ + Class to wrap functions with checks for __array_function__ overrides. + + All arguments are required, and can only be passed by position. + + Parameters + ---------- + dispatcher : function or None + The dispatcher function that returns a single sequence-like object + of all arguments relevant. It must have the same signature (except + the default values) as the actual implementation. + If ``None``, this is a ``like=`` dispatcher and the + ``_ArrayFunctionDispatcher`` must be called with ``like`` as the + first (additional and positional) argument. + implementation : function + Function that implements the operation on NumPy arrays without + overrides. Arguments passed calling the ``_ArrayFunctionDispatcher`` + will be forwarded to this (and the ``dispatcher``) as if using + ``*args, **kwargs``. + + Attributes + ---------- + _implementation : function + The original implementation passed in. + """) + + +# exposed for testing purposes; used internally by _ArrayFunctionDispatcher +add_docstring( + _get_implementing_args, + """ + Collect arguments on which to call __array_function__. + + Parameters + ---------- + relevant_args : iterable of array-like + Iterable of possibly array-like arguments to check for + __array_function__ methods. + + Returns + ------- + Sequence of arguments with __array_function__ methods, in the order in + which they should be called. + """) + + +ArgSpec = collections.namedtuple('ArgSpec', 'args varargs keywords defaults') + + +def verify_matching_signatures(implementation, dispatcher): + """Verify that a dispatcher function has the right signature.""" + implementation_spec = ArgSpec(*getargspec(implementation)) + dispatcher_spec = ArgSpec(*getargspec(dispatcher)) + + if (implementation_spec.args != dispatcher_spec.args or + implementation_spec.varargs != dispatcher_spec.varargs or + implementation_spec.keywords != dispatcher_spec.keywords or + (bool(implementation_spec.defaults) != + bool(dispatcher_spec.defaults)) or + (implementation_spec.defaults is not None and + len(implementation_spec.defaults) != + len(dispatcher_spec.defaults))): + raise RuntimeError('implementation and dispatcher for %s have ' + 'different function signatures' % implementation) + + if implementation_spec.defaults is not None: + if dispatcher_spec.defaults != (None,) * len(dispatcher_spec.defaults): + raise RuntimeError('dispatcher functions can only use None for ' + 'default argument values') + + +def array_function_dispatch(dispatcher=None, module=None, verify=True, + docs_from_dispatcher=False): + """Decorator for adding dispatch with the __array_function__ protocol. + + See NEP-18 for example usage. + + Parameters + ---------- + dispatcher : callable or None + Function that when called like ``dispatcher(*args, **kwargs)`` with + arguments from the NumPy function call returns an iterable of + array-like arguments to check for ``__array_function__``. + + If `None`, the first argument is used as the single `like=` argument + and not passed on. A function implementing `like=` must call its + dispatcher with `like` as the first non-keyword argument. + module : str, optional + __module__ attribute to set on new function, e.g., ``module='numpy'``. + By default, module is copied from the decorated function. + verify : bool, optional + If True, verify the that the signature of the dispatcher and decorated + function signatures match exactly: all required and optional arguments + should appear in order with the same names, but the default values for + all optional arguments should be ``None``. Only disable verification + if the dispatcher's signature needs to deviate for some particular + reason, e.g., because the function has a signature like + ``func(*args, **kwargs)``. + docs_from_dispatcher : bool, optional + If True, copy docs from the dispatcher function onto the dispatched + function, rather than from the implementation. This is useful for + functions defined in C, which otherwise don't have docstrings. + + Returns + ------- + Function suitable for decorating the implementation of a NumPy function. + + """ + def decorator(implementation): + if verify: + if dispatcher is not None: + verify_matching_signatures(implementation, dispatcher) + else: + # Using __code__ directly similar to verify_matching_signature + co = implementation.__code__ + last_arg = co.co_argcount + co.co_kwonlyargcount - 1 + last_arg = co.co_varnames[last_arg] + if last_arg != "like" or co.co_kwonlyargcount == 0: + raise RuntimeError( + "__array_function__ expects `like=` to be the last " + "argument and a keyword-only argument. " + f"{implementation} does not seem to comply.") + + if docs_from_dispatcher and dispatcher.__doc__ is not None: + doc = inspect.cleandoc(dispatcher.__doc__) + add_docstring(implementation, doc) + + public_api = _ArrayFunctionDispatcher(dispatcher, implementation) + functools.update_wrapper(public_api, implementation) + + if not verify and not getattr(implementation, "__text_signature__", None): + public_api.__signature__ = inspect.signature(dispatcher) + + if module is not None: + public_api.__module__ = module + + ARRAY_FUNCTIONS.add(public_api) + + return public_api + + return decorator + + +def array_function_from_dispatcher( + implementation, module=None, verify=True, docs_from_dispatcher=True): + """Like array_function_dispatcher, but with function arguments flipped.""" + + def decorator(dispatcher): + return array_function_dispatch( + dispatcher, module, verify=verify, + docs_from_dispatcher=docs_from_dispatcher)(implementation) + return decorator diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/overrides.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/overrides.pyi new file mode 100644 index 0000000000000000000000000000000000000000..6ef52566d7823560635f02b9579cf43c66144e47 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/overrides.pyi @@ -0,0 +1,47 @@ +from collections.abc import Callable, Iterable +from typing import Any, Final, NamedTuple, ParamSpec, TypeAlias, TypeVar + +from numpy._utils import set_module as set_module + +_T = TypeVar("_T") +_Tss = ParamSpec("_Tss") +_FuncLikeT = TypeVar("_FuncLikeT", bound=type | Callable[..., object]) + +_Dispatcher: TypeAlias = Callable[_Tss, Iterable[object]] + +### + +ARRAY_FUNCTIONS: set[Callable[..., Any]] = ... +array_function_like_doc: Final[str] = ... + +class ArgSpec(NamedTuple): + args: list[str] + varargs: str | None + keywords: str | None + defaults: tuple[Any, ...] + +def get_array_function_like_doc(public_api: Callable[..., object], docstring_template: str = "") -> str: ... +def finalize_array_function_like(public_api: _FuncLikeT) -> _FuncLikeT: ... + +# +def verify_matching_signatures(implementation: Callable[_Tss, object], dispatcher: _Dispatcher[_Tss]) -> None: ... + +# NOTE: This actually returns a `_ArrayFunctionDispatcher` callable wrapper object, with +# the original wrapped callable stored in the `._implementation` attribute. It checks +# for any `__array_function__` of the values of specific arguments that the dispatcher +# specifies. Since the dispatcher only returns an iterable of passed array-like args, +# this overridable behaviour is impossible to annotate. +def array_function_dispatch( + dispatcher: _Dispatcher[_Tss] | None = None, + module: str | None = None, + verify: bool = True, + docs_from_dispatcher: bool = False, +) -> Callable[[_FuncLikeT], _FuncLikeT]: ... + +# +def array_function_from_dispatcher( + implementation: Callable[_Tss, _T], + module: str | None = None, + verify: bool = True, + docs_from_dispatcher: bool = True, +) -> Callable[[_Dispatcher[_Tss]], Callable[_Tss, _T]]: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/printoptions.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/printoptions.py new file mode 100644 index 0000000000000000000000000000000000000000..5d6f9635cd3c17eab501fcda6edef20bfddbdc34 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/printoptions.py @@ -0,0 +1,32 @@ +""" +Stores and defines the low-level format_options context variable. + +This is defined in its own file outside of the arrayprint module +so we can import it from C while initializing the multiarray +C module during import without introducing circular dependencies. +""" + +import sys +from contextvars import ContextVar + +__all__ = ["format_options"] + +default_format_options_dict = { + "edgeitems": 3, # repr N leading and trailing items of each dimension + "threshold": 1000, # total items > triggers array summarization + "floatmode": "maxprec", + "precision": 8, # precision of floating point representations + "suppress": False, # suppress printing small floating values in exp format + "linewidth": 75, + "nanstr": "nan", + "infstr": "inf", + "sign": "-", + "formatter": None, + # Internally stored as an int to simplify comparisons; converted from/to + # str/False on the way in/out. + 'legacy': sys.maxsize, + 'override_repr': None, +} + +format_options = ContextVar( + "format_options", default=default_format_options_dict) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/printoptions.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/printoptions.pyi new file mode 100644 index 0000000000000000000000000000000000000000..bd7c7b40692d4afb0cb2ab6a8f48b0065cc9c127 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/printoptions.pyi @@ -0,0 +1,28 @@ +from collections.abc import Callable +from contextvars import ContextVar +from typing import Any, Final, TypedDict + +from .arrayprint import _FormatDict + +__all__ = ["format_options"] + +### + +class _FormatOptionsDict(TypedDict): + edgeitems: int + threshold: int + floatmode: str + precision: int + suppress: bool + linewidth: int + nanstr: str + infstr: str + sign: str + formatter: _FormatDict | None + legacy: int + override_repr: Callable[[Any], str] | None + +### + +default_format_options_dict: Final[_FormatOptionsDict] = ... +format_options: ContextVar[_FormatOptionsDict] diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/records.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/records.py new file mode 100644 index 0000000000000000000000000000000000000000..9a6af16e3b23f5e3909892b54a329c26495a2e84 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/records.py @@ -0,0 +1,1088 @@ +""" +This module contains a set of functions for record arrays. +""" +import os +import warnings +from collections import Counter +from contextlib import nullcontext + +from numpy._utils import set_module + +from . import numeric as sb, numerictypes as nt +from .arrayprint import _get_legacy_print_mode + +# All of the functions allow formats to be a dtype +__all__ = [ + 'record', 'recarray', 'format_parser', 'fromarrays', 'fromrecords', + 'fromstring', 'fromfile', 'array', 'find_duplicate', +] + + +ndarray = sb.ndarray + +_byteorderconv = {'b': '>', + 'l': '<', + 'n': '=', + 'B': '>', + 'L': '<', + 'N': '=', + 'S': 's', + 's': 's', + '>': '>', + '<': '<', + '=': '=', + '|': '|', + 'I': '|', + 'i': '|'} + +# formats regular expression +# allows multidimensional spec with a tuple syntax in front +# of the letter code '(2,3)f4' and ' ( 2 , 3 ) f4 ' +# are equally allowed + +numfmt = nt.sctypeDict + + +@set_module('numpy.rec') +def find_duplicate(list): + """Find duplication in a list, return a list of duplicated elements""" + return [ + item + for item, counts in Counter(list).items() + if counts > 1 + ] + + +@set_module('numpy.rec') +class format_parser: + """ + Class to convert formats, names, titles description to a dtype. + + After constructing the format_parser object, the dtype attribute is + the converted data-type: + ``dtype = format_parser(formats, names, titles).dtype`` + + Attributes + ---------- + dtype : dtype + The converted data-type. + + Parameters + ---------- + formats : str or list of str + The format description, either specified as a string with + comma-separated format descriptions in the form ``'f8, i4, S5'``, or + a list of format description strings in the form + ``['f8', 'i4', 'S5']``. + names : str or list/tuple of str + The field names, either specified as a comma-separated string in the + form ``'col1, col2, col3'``, or as a list or tuple of strings in the + form ``['col1', 'col2', 'col3']``. + An empty list can be used, in that case default field names + ('f0', 'f1', ...) are used. + titles : sequence + Sequence of title strings. An empty list can be used to leave titles + out. + aligned : bool, optional + If True, align the fields by padding as the C-compiler would. + Default is False. + byteorder : str, optional + If specified, all the fields will be changed to the + provided byte-order. Otherwise, the default byte-order is + used. For all available string specifiers, see `dtype.newbyteorder`. + + See Also + -------- + numpy.dtype, numpy.typename + + Examples + -------- + >>> import numpy as np + >>> np.rec.format_parser(['>> np.rec.format_parser(['f8', 'i4', 'a5'], ['col1', 'col2', 'col3'], + ... []).dtype + dtype([('col1', '>> np.rec.format_parser([' len(titles): + self._titles += [None] * (self._nfields - len(titles)) + + def _createdtype(self, byteorder): + dtype = sb.dtype({ + 'names': self._names, + 'formats': self._f_formats, + 'offsets': self._offsets, + 'titles': self._titles, + }) + if byteorder is not None: + byteorder = _byteorderconv[byteorder[0]] + dtype = dtype.newbyteorder(byteorder) + + self.dtype = dtype + + +class record(nt.void): + """A data-type scalar that allows field access as attribute lookup. + """ + + # manually set name and module so that this class's type shows up + # as numpy.record when printed + __name__ = 'record' + __module__ = 'numpy' + + def __repr__(self): + if _get_legacy_print_mode() <= 113: + return self.__str__() + return super().__repr__() + + def __str__(self): + if _get_legacy_print_mode() <= 113: + return str(self.item()) + return super().__str__() + + def __getattribute__(self, attr): + if attr in ('setfield', 'getfield', 'dtype'): + return nt.void.__getattribute__(self, attr) + try: + return nt.void.__getattribute__(self, attr) + except AttributeError: + pass + fielddict = nt.void.__getattribute__(self, 'dtype').fields + res = fielddict.get(attr, None) + if res: + obj = self.getfield(*res[:2]) + # if it has fields return a record, + # otherwise return the object + try: + dt = obj.dtype + except AttributeError: + # happens if field is Object type + return obj + if dt.names is not None: + return obj.view((self.__class__, obj.dtype)) + return obj + else: + raise AttributeError(f"'record' object has no attribute '{attr}'") + + def __setattr__(self, attr, val): + if attr in ('setfield', 'getfield', 'dtype'): + raise AttributeError(f"Cannot set '{attr}' attribute") + fielddict = nt.void.__getattribute__(self, 'dtype').fields + res = fielddict.get(attr, None) + if res: + return self.setfield(val, *res[:2]) + elif getattr(self, attr, None): + return nt.void.__setattr__(self, attr, val) + else: + raise AttributeError(f"'record' object has no attribute '{attr}'") + + def __getitem__(self, indx): + obj = nt.void.__getitem__(self, indx) + + # copy behavior of record.__getattribute__, + if isinstance(obj, nt.void) and obj.dtype.names is not None: + return obj.view((self.__class__, obj.dtype)) + else: + # return a single element + return obj + + def pprint(self): + """Pretty-print all fields.""" + # pretty-print all fields + names = self.dtype.names + maxlen = max(len(name) for name in names) + fmt = '%% %ds: %%s' % maxlen + rows = [fmt % (name, getattr(self, name)) for name in names] + return "\n".join(rows) + +# The recarray is almost identical to a standard array (which supports +# named fields already) The biggest difference is that it can use +# attribute-lookup to find the fields and it is constructed using +# a record. + +# If byteorder is given it forces a particular byteorder on all +# the fields (and any subfields) + + +@set_module("numpy.rec") +class recarray(ndarray): + """Construct an ndarray that allows field access using attributes. + + Arrays may have a data-types containing fields, analogous + to columns in a spread sheet. An example is ``[(x, int), (y, float)]``, + where each entry in the array is a pair of ``(int, float)``. Normally, + these attributes are accessed using dictionary lookups such as ``arr['x']`` + and ``arr['y']``. Record arrays allow the fields to be accessed as members + of the array, using ``arr.x`` and ``arr.y``. + + Parameters + ---------- + shape : tuple + Shape of output array. + dtype : data-type, optional + The desired data-type. By default, the data-type is determined + from `formats`, `names`, `titles`, `aligned` and `byteorder`. + formats : list of data-types, optional + A list containing the data-types for the different columns, e.g. + ``['i4', 'f8', 'i4']``. `formats` does *not* support the new + convention of using types directly, i.e. ``(int, float, int)``. + Note that `formats` must be a list, not a tuple. + Given that `formats` is somewhat limited, we recommend specifying + `dtype` instead. + names : tuple of str, optional + The name of each column, e.g. ``('x', 'y', 'z')``. + buf : buffer, optional + By default, a new array is created of the given shape and data-type. + If `buf` is specified and is an object exposing the buffer interface, + the array will use the memory from the existing buffer. In this case, + the `offset` and `strides` keywords are available. + + Other Parameters + ---------------- + titles : tuple of str, optional + Aliases for column names. For example, if `names` were + ``('x', 'y', 'z')`` and `titles` is + ``('x_coordinate', 'y_coordinate', 'z_coordinate')``, then + ``arr['x']`` is equivalent to both ``arr.x`` and ``arr.x_coordinate``. + byteorder : {'<', '>', '='}, optional + Byte-order for all fields. + aligned : bool, optional + Align the fields in memory as the C-compiler would. + strides : tuple of ints, optional + Buffer (`buf`) is interpreted according to these strides (strides + define how many bytes each array element, row, column, etc. + occupy in memory). + offset : int, optional + Start reading buffer (`buf`) from this offset onwards. + order : {'C', 'F'}, optional + Row-major (C-style) or column-major (Fortran-style) order. + + Returns + ------- + rec : recarray + Empty array of the given shape and type. + + See Also + -------- + numpy.rec.fromrecords : Construct a record array from data. + numpy.record : fundamental data-type for `recarray`. + numpy.rec.format_parser : determine data-type from formats, names, titles. + + Notes + ----- + This constructor can be compared to ``empty``: it creates a new record + array but does not fill it with data. To create a record array from data, + use one of the following methods: + + 1. Create a standard ndarray and convert it to a record array, + using ``arr.view(np.recarray)`` + 2. Use the `buf` keyword. + 3. Use `np.rec.fromrecords`. + + Examples + -------- + Create an array with two fields, ``x`` and ``y``: + + >>> import numpy as np + >>> x = np.array([(1.0, 2), (3.0, 4)], dtype=[('x', '>> x + array([(1., 2), (3., 4)], dtype=[('x', '>> x['x'] + array([1., 3.]) + + View the array as a record array: + + >>> x = x.view(np.recarray) + + >>> x.x + array([1., 3.]) + + >>> x.y + array([2, 4]) + + Create a new, empty record array: + + >>> np.recarray((2,), + ... dtype=[('x', int), ('y', float), ('z', int)]) #doctest: +SKIP + rec.array([(-1073741821, 1.2249118382103472e-301, 24547520), + (3471280, 1.2134086255804012e-316, 0)], + dtype=[('x', ' 0 or self.shape == (0,): + lst = sb.array2string( + self, separator=', ', prefix=prefix, suffix=',') + else: + # show zero-length shape unless it is (0,) + lst = f"[], shape={repr(self.shape)}" + + lf = '\n' + ' ' * len(prefix) + if _get_legacy_print_mode() <= 113: + lf = ' ' + lf # trailing space + return fmt % (lst, lf, repr_dtype) + + def field(self, attr, val=None): + if isinstance(attr, int): + names = ndarray.__getattribute__(self, 'dtype').names + attr = names[attr] + + fielddict = ndarray.__getattribute__(self, 'dtype').fields + + res = fielddict[attr][:2] + + if val is None: + obj = self.getfield(*res) + if obj.dtype.names is not None: + return obj + return obj.view(ndarray) + else: + return self.setfield(val, *res) + + +def _deprecate_shape_0_as_None(shape): + if shape == 0: + warnings.warn( + "Passing `shape=0` to have the shape be inferred is deprecated, " + "and in future will be equivalent to `shape=(0,)`. To infer " + "the shape and suppress this warning, pass `shape=None` instead.", + FutureWarning, stacklevel=3) + return None + else: + return shape + + +@set_module("numpy.rec") +def fromarrays(arrayList, dtype=None, shape=None, formats=None, + names=None, titles=None, aligned=False, byteorder=None): + """Create a record array from a (flat) list of arrays + + Parameters + ---------- + arrayList : list or tuple + List of array-like objects (such as lists, tuples, + and ndarrays). + dtype : data-type, optional + valid dtype for all arrays + shape : int or tuple of ints, optional + Shape of the resulting array. If not provided, inferred from + ``arrayList[0]``. + formats, names, titles, aligned, byteorder : + If `dtype` is ``None``, these arguments are passed to + `numpy.rec.format_parser` to construct a dtype. See that function for + detailed documentation. + + Returns + ------- + np.recarray + Record array consisting of given arrayList columns. + + Examples + -------- + >>> x1=np.array([1,2,3,4]) + >>> x2=np.array(['a','dd','xyz','12']) + >>> x3=np.array([1.1,2,3,4]) + >>> r = np.rec.fromarrays([x1,x2,x3],names='a,b,c') + >>> print(r[1]) + (2, 'dd', 2.0) # may vary + >>> x1[1]=34 + >>> r.a + array([1, 2, 3, 4]) + + >>> x1 = np.array([1, 2, 3, 4]) + >>> x2 = np.array(['a', 'dd', 'xyz', '12']) + >>> x3 = np.array([1.1, 2, 3,4]) + >>> r = np.rec.fromarrays( + ... [x1, x2, x3], + ... dtype=np.dtype([('a', np.int32), ('b', 'S3'), ('c', np.float32)])) + >>> r + rec.array([(1, b'a', 1.1), (2, b'dd', 2. ), (3, b'xyz', 3. ), + (4, b'12', 4. )], + dtype=[('a', ' 0: + shape = shape[:-nn] + + _array = recarray(shape, descr) + + # populate the record array (makes a copy) + for k, obj in enumerate(arrayList): + nn = descr[k].ndim + testshape = obj.shape[:obj.ndim - nn] + name = _names[k] + if testshape != shape: + raise ValueError(f'array-shape mismatch in array {k} ("{name}")') + + _array[name] = obj + + return _array + + +@set_module("numpy.rec") +def fromrecords(recList, dtype=None, shape=None, formats=None, names=None, + titles=None, aligned=False, byteorder=None): + """Create a recarray from a list of records in text form. + + Parameters + ---------- + recList : sequence + data in the same field may be heterogeneous - they will be promoted + to the highest data type. + dtype : data-type, optional + valid dtype for all arrays + shape : int or tuple of ints, optional + shape of each array. + formats, names, titles, aligned, byteorder : + If `dtype` is ``None``, these arguments are passed to + `numpy.format_parser` to construct a dtype. See that function for + detailed documentation. + + If both `formats` and `dtype` are None, then this will auto-detect + formats. Use list of tuples rather than list of lists for faster + processing. + + Returns + ------- + np.recarray + record array consisting of given recList rows. + + Examples + -------- + >>> r=np.rec.fromrecords([(456,'dbe',1.2),(2,'de',1.3)], + ... names='col1,col2,col3') + >>> print(r[0]) + (456, 'dbe', 1.2) + >>> r.col1 + array([456, 2]) + >>> r.col2 + array(['dbe', 'de'], dtype='>> import pickle + >>> pickle.loads(pickle.dumps(r)) + rec.array([(456, 'dbe', 1.2), ( 2, 'de', 1.3)], + dtype=[('col1', ' 1: + raise ValueError("Can only deal with 1-d array.") + _array = recarray(shape, descr) + for k in range(_array.size): + _array[k] = tuple(recList[k]) + # list of lists instead of list of tuples ? + # 2018-02-07, 1.14.1 + warnings.warn( + "fromrecords expected a list of tuples, may have received a list " + "of lists instead. In the future that will raise an error", + FutureWarning, stacklevel=2) + return _array + else: + if shape is not None and retval.shape != shape: + retval.shape = shape + + res = retval.view(recarray) + + return res + + +@set_module("numpy.rec") +def fromstring(datastring, dtype=None, shape=None, offset=0, formats=None, + names=None, titles=None, aligned=False, byteorder=None): + r"""Create a record array from binary data + + Note that despite the name of this function it does not accept `str` + instances. + + Parameters + ---------- + datastring : bytes-like + Buffer of binary data + dtype : data-type, optional + Valid dtype for all arrays + shape : int or tuple of ints, optional + Shape of each array. + offset : int, optional + Position in the buffer to start reading from. + formats, names, titles, aligned, byteorder : + If `dtype` is ``None``, these arguments are passed to + `numpy.format_parser` to construct a dtype. See that function for + detailed documentation. + + + Returns + ------- + np.recarray + Record array view into the data in datastring. This will be readonly + if `datastring` is readonly. + + See Also + -------- + numpy.frombuffer + + Examples + -------- + >>> a = b'\x01\x02\x03abc' + >>> np.rec.fromstring(a, dtype='u1,u1,u1,S3') + rec.array([(1, 2, 3, b'abc')], + dtype=[('f0', 'u1'), ('f1', 'u1'), ('f2', 'u1'), ('f3', 'S3')]) + + >>> grades_dtype = [('Name', (np.str_, 10)), ('Marks', np.float64), + ... ('GradeLevel', np.int32)] + >>> grades_array = np.array([('Sam', 33.3, 3), ('Mike', 44.4, 5), + ... ('Aadi', 66.6, 6)], dtype=grades_dtype) + >>> np.rec.fromstring(grades_array.tobytes(), dtype=grades_dtype) + rec.array([('Sam', 33.3, 3), ('Mike', 44.4, 5), ('Aadi', 66.6, 6)], + dtype=[('Name', '>> s = '\x01\x02\x03abc' + >>> np.rec.fromstring(s, dtype='u1,u1,u1,S3') + Traceback (most recent call last): + ... + TypeError: a bytes-like object is required, not 'str' + """ + + if dtype is None and formats is None: + raise TypeError("fromstring() needs a 'dtype' or 'formats' argument") + + if dtype is not None: + descr = sb.dtype(dtype) + else: + descr = format_parser(formats, names, titles, aligned, byteorder).dtype + + itemsize = descr.itemsize + + # NumPy 1.19.0, 2020-01-01 + shape = _deprecate_shape_0_as_None(shape) + + if shape in (None, -1): + shape = (len(datastring) - offset) // itemsize + + _array = recarray(shape, descr, buf=datastring, offset=offset) + return _array + +def get_remaining_size(fd): + pos = fd.tell() + try: + fd.seek(0, 2) + return fd.tell() - pos + finally: + fd.seek(pos, 0) + + +@set_module("numpy.rec") +def fromfile(fd, dtype=None, shape=None, offset=0, formats=None, + names=None, titles=None, aligned=False, byteorder=None): + """Create an array from binary file data + + Parameters + ---------- + fd : str or file type + If file is a string or a path-like object then that file is opened, + else it is assumed to be a file object. The file object must + support random access (i.e. it must have tell and seek methods). + dtype : data-type, optional + valid dtype for all arrays + shape : int or tuple of ints, optional + shape of each array. + offset : int, optional + Position in the file to start reading from. + formats, names, titles, aligned, byteorder : + If `dtype` is ``None``, these arguments are passed to + `numpy.format_parser` to construct a dtype. See that function for + detailed documentation + + Returns + ------- + np.recarray + record array consisting of data enclosed in file. + + Examples + -------- + >>> from tempfile import TemporaryFile + >>> a = np.empty(10,dtype='f8,i4,a5') + >>> a[5] = (0.5,10,'abcde') + >>> + >>> fd=TemporaryFile() + >>> a = a.view(a.dtype.newbyteorder('<')) + >>> a.tofile(fd) + >>> + >>> _ = fd.seek(0) + >>> r=np.rec.fromfile(fd, formats='f8,i4,a5', shape=10, + ... byteorder='<') + >>> print(r[5]) + (0.5, 10, b'abcde') + >>> r.shape + (10,) + """ + + if dtype is None and formats is None: + raise TypeError("fromfile() needs a 'dtype' or 'formats' argument") + + # NumPy 1.19.0, 2020-01-01 + shape = _deprecate_shape_0_as_None(shape) + + if shape is None: + shape = (-1,) + elif isinstance(shape, int): + shape = (shape,) + + if hasattr(fd, 'readinto'): + # GH issue 2504. fd supports io.RawIOBase or io.BufferedIOBase + # interface. Example of fd: gzip, BytesIO, BufferedReader + # file already opened + ctx = nullcontext(fd) + else: + # open file + ctx = open(os.fspath(fd), 'rb') + + with ctx as fd: + if offset > 0: + fd.seek(offset, 1) + size = get_remaining_size(fd) + + if dtype is not None: + descr = sb.dtype(dtype) + else: + descr = format_parser( + formats, names, titles, aligned, byteorder + ).dtype + + itemsize = descr.itemsize + + shapeprod = sb.array(shape).prod(dtype=nt.intp) + shapesize = shapeprod * itemsize + if shapesize < 0: + shape = list(shape) + shape[shape.index(-1)] = size // -shapesize + shape = tuple(shape) + shapeprod = sb.array(shape).prod(dtype=nt.intp) + + nbytes = shapeprod * itemsize + + if nbytes > size: + raise ValueError( + "Not enough bytes left in file for specified " + "shape and type." + ) + + # create the array + _array = recarray(shape, descr) + nbytesread = fd.readinto(_array.data) + if nbytesread != nbytes: + raise OSError("Didn't read as many bytes as expected") + + return _array + + +@set_module("numpy.rec") +def array(obj, dtype=None, shape=None, offset=0, strides=None, formats=None, + names=None, titles=None, aligned=False, byteorder=None, copy=True): + """ + Construct a record array from a wide-variety of objects. + + A general-purpose record array constructor that dispatches to the + appropriate `recarray` creation function based on the inputs (see Notes). + + Parameters + ---------- + obj : any + Input object. See Notes for details on how various input types are + treated. + dtype : data-type, optional + Valid dtype for array. + shape : int or tuple of ints, optional + Shape of each array. + offset : int, optional + Position in the file or buffer to start reading from. + strides : tuple of ints, optional + Buffer (`buf`) is interpreted according to these strides (strides + define how many bytes each array element, row, column, etc. + occupy in memory). + formats, names, titles, aligned, byteorder : + If `dtype` is ``None``, these arguments are passed to + `numpy.format_parser` to construct a dtype. See that function for + detailed documentation. + copy : bool, optional + Whether to copy the input object (True), or to use a reference instead. + This option only applies when the input is an ndarray or recarray. + Defaults to True. + + Returns + ------- + np.recarray + Record array created from the specified object. + + Notes + ----- + If `obj` is ``None``, then call the `~numpy.recarray` constructor. If + `obj` is a string, then call the `fromstring` constructor. If `obj` is a + list or a tuple, then if the first object is an `~numpy.ndarray`, call + `fromarrays`, otherwise call `fromrecords`. If `obj` is a + `~numpy.recarray`, then make a copy of the data in the recarray + (if ``copy=True``) and use the new formats, names, and titles. If `obj` + is a file, then call `fromfile`. Finally, if obj is an `ndarray`, then + return ``obj.view(recarray)``, making a copy of the data if ``copy=True``. + + Examples + -------- + >>> a = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]]) + >>> a + array([[1, 2, 3], + [4, 5, 6], + [7, 8, 9]]) + + >>> np.rec.array(a) + rec.array([[1, 2, 3], + [4, 5, 6], + [7, 8, 9]], + dtype=int64) + + >>> b = [(1, 1), (2, 4), (3, 9)] + >>> c = np.rec.array(b, formats = ['i2', 'f2'], names = ('x', 'y')) + >>> c + rec.array([(1, 1.), (2, 4.), (3, 9.)], + dtype=[('x', '>> c.x + array([1, 2, 3], dtype=int16) + + >>> c.y + array([1., 4., 9.], dtype=float16) + + >>> r = np.rec.array(['abc','def'], names=['col1','col2']) + >>> print(r.col1) + abc + + >>> r.col1 + array('abc', dtype='>> r.col2 + array('def', dtype=' object: ... + def tell(self, /) -> int: ... + def readinto(self, buffer: memoryview, /) -> int: ... + +### + +# exported in `numpy.rec` +class record(np.void): # type: ignore[misc] + __name__: ClassVar[Literal["record"]] = "record" + __module__: Literal["numpy"] = "numpy" + + def pprint(self) -> str: ... + + def __getattribute__(self, attr: str, /) -> Any: ... + def __setattr__(self, attr: str, val: ArrayLike, /) -> None: ... + + @overload + def __getitem__(self, key: str | SupportsIndex, /) -> Incomplete: ... + @overload + def __getitem__(self, key: list[str], /) -> record: ... + +# exported in `numpy.rec` +class recarray(np.ndarray[_ShapeT_co, _DTypeT_co]): + __name__: ClassVar[Literal["recarray"]] = "recarray" + __module__: Literal["numpy.rec"] = "numpy.rec" + + @overload + def __new__( + subtype, + shape: _ShapeLike, + dtype: None = None, + buf: Buffer | None = None, + offset: SupportsIndex = 0, + strides: _ShapeLike | None = None, + *, + formats: DTypeLike | None, + names: str | Sequence[str] | None = None, + titles: str | Sequence[str] | None = None, + byteorder: _ByteOrder | None = None, + aligned: bool = False, + order: _OrderKACF = "C", + ) -> _RecArray[record]: ... + @overload + def __new__( + subtype, + shape: _ShapeLike, + dtype: DTypeLike | None, + buf: Buffer | None = None, + offset: SupportsIndex = 0, + strides: _ShapeLike | None = None, + formats: None = None, + names: None = None, + titles: None = None, + byteorder: None = None, + aligned: Literal[False] = False, + order: _OrderKACF = "C", + ) -> _RecArray[Incomplete]: ... + + def __getattribute__(self, attr: str, /) -> Any: ... + def __setattr__(self, attr: str, val: ArrayLike, /) -> None: ... + + def __array_finalize__(self, /, obj: object) -> None: ... + + # + @overload + def field(self, /, attr: int | str, val: ArrayLike) -> None: ... + @overload + def field(self, /, attr: int | str, val: None = None) -> Incomplete: ... + +# exported in `numpy.rec` +class format_parser: + dtype: np.dtype[np.void] + def __init__( + self, + /, + formats: DTypeLike | None, + names: str | Sequence[str] | None, + titles: str | Sequence[str] | None, + aligned: bool = False, + byteorder: _ByteOrder | None = None, + ) -> None: ... + +# exported in `numpy.rec` +@overload +def fromarrays( + arrayList: Iterable[ArrayLike], + dtype: DTypeLike | None = None, + shape: _ShapeLike | None = None, + formats: None = None, + names: None = None, + titles: None = None, + aligned: bool = False, + byteorder: None = None, +) -> _RecArray[Any]: ... +@overload +def fromarrays( + arrayList: Iterable[ArrayLike], + dtype: None = None, + shape: _ShapeLike | None = None, + *, + formats: DTypeLike | None, + names: str | Sequence[str] | None = None, + titles: str | Sequence[str] | None = None, + aligned: bool = False, + byteorder: _ByteOrder | None = None, +) -> _RecArray[record]: ... + +@overload +def fromrecords( + recList: _ArrayLikeVoid_co | tuple[object, ...] | _NestedSequence[tuple[object, ...]], + dtype: DTypeLike | None = None, + shape: _ShapeLike | None = None, + formats: None = None, + names: None = None, + titles: None = None, + aligned: bool = False, + byteorder: None = None, +) -> _RecArray[record]: ... +@overload +def fromrecords( + recList: _ArrayLikeVoid_co | tuple[object, ...] | _NestedSequence[tuple[object, ...]], + dtype: None = None, + shape: _ShapeLike | None = None, + *, + formats: DTypeLike | None, + names: str | Sequence[str] | None = None, + titles: str | Sequence[str] | None = None, + aligned: bool = False, + byteorder: _ByteOrder | None = None, +) -> _RecArray[record]: ... + +# exported in `numpy.rec` +@overload +def fromstring( + datastring: Buffer, + dtype: DTypeLike | None, + shape: _ShapeLike | None = None, + offset: int = 0, + formats: None = None, + names: None = None, + titles: None = None, + aligned: bool = False, + byteorder: None = None, +) -> _RecArray[record]: ... +@overload +def fromstring( + datastring: Buffer, + dtype: None = None, + shape: _ShapeLike | None = None, + offset: int = 0, + *, + formats: DTypeLike | None, + names: str | Sequence[str] | None = None, + titles: str | Sequence[str] | None = None, + aligned: bool = False, + byteorder: _ByteOrder | None = None, +) -> _RecArray[record]: ... + +# exported in `numpy.rec` +@overload +def fromfile( + fd: StrOrBytesPath | _SupportsReadInto, + dtype: DTypeLike | None, + shape: _ShapeLike | None = None, + offset: int = 0, + formats: None = None, + names: None = None, + titles: None = None, + aligned: bool = False, + byteorder: None = None, +) -> _RecArray[Any]: ... +@overload +def fromfile( + fd: StrOrBytesPath | _SupportsReadInto, + dtype: None = None, + shape: _ShapeLike | None = None, + offset: int = 0, + *, + formats: DTypeLike | None, + names: str | Sequence[str] | None = None, + titles: str | Sequence[str] | None = None, + aligned: bool = False, + byteorder: _ByteOrder | None = None, +) -> _RecArray[record]: ... + +# exported in `numpy.rec` +@overload +def array( + obj: _ScalarT | NDArray[_ScalarT], + dtype: None = None, + shape: _ShapeLike | None = None, + offset: int = 0, + strides: tuple[int, ...] | None = None, + formats: None = None, + names: None = None, + titles: None = None, + aligned: bool = False, + byteorder: None = None, + copy: bool = True, +) -> _RecArray[_ScalarT]: ... +@overload +def array( + obj: ArrayLike, + dtype: DTypeLike | None, + shape: _ShapeLike | None = None, + offset: int = 0, + strides: tuple[int, ...] | None = None, + formats: None = None, + names: None = None, + titles: None = None, + aligned: bool = False, + byteorder: None = None, + copy: bool = True, +) -> _RecArray[Any]: ... +@overload +def array( + obj: ArrayLike, + dtype: None = None, + shape: _ShapeLike | None = None, + offset: int = 0, + strides: tuple[int, ...] | None = None, + *, + formats: DTypeLike | None, + names: str | Sequence[str] | None = None, + titles: str | Sequence[str] | None = None, + aligned: bool = False, + byteorder: _ByteOrder | None = None, + copy: bool = True, +) -> _RecArray[record]: ... +@overload +def array( + obj: None, + dtype: DTypeLike | None, + shape: _ShapeLike, + offset: int = 0, + strides: tuple[int, ...] | None = None, + formats: None = None, + names: None = None, + titles: None = None, + aligned: bool = False, + byteorder: None = None, + copy: bool = True, +) -> _RecArray[Any]: ... +@overload +def array( + obj: None, + dtype: None = None, + *, + shape: _ShapeLike, + offset: int = 0, + strides: tuple[int, ...] | None = None, + formats: DTypeLike | None, + names: str | Sequence[str] | None = None, + titles: str | Sequence[str] | None = None, + aligned: bool = False, + byteorder: _ByteOrder | None = None, + copy: bool = True, +) -> _RecArray[record]: ... +@overload +def array( + obj: _SupportsReadInto, + dtype: DTypeLike | None, + shape: _ShapeLike | None = None, + offset: int = 0, + strides: tuple[int, ...] | None = None, + formats: None = None, + names: None = None, + titles: None = None, + aligned: bool = False, + byteorder: None = None, + copy: bool = True, +) -> _RecArray[Any]: ... +@overload +def array( + obj: _SupportsReadInto, + dtype: None = None, + shape: _ShapeLike | None = None, + offset: int = 0, + strides: tuple[int, ...] | None = None, + *, + formats: DTypeLike | None, + names: str | Sequence[str] | None = None, + titles: str | Sequence[str] | None = None, + aligned: bool = False, + byteorder: _ByteOrder | None = None, + copy: bool = True, +) -> _RecArray[record]: ... + +# exported in `numpy.rec` +def find_duplicate(list: Iterable[_T]) -> list[_T]: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/shape_base.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/shape_base.py new file mode 100644 index 0000000000000000000000000000000000000000..39de8739db0eef8f1cd740467538a807d6d58e87 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/shape_base.py @@ -0,0 +1,996 @@ +__all__ = ['atleast_1d', 'atleast_2d', 'atleast_3d', 'block', 'hstack', + 'stack', 'unstack', 'vstack'] + +import functools +import itertools +import operator + +from . import fromnumeric as _from_nx, numeric as _nx, overrides +from .multiarray import array, asanyarray, normalize_axis_index + +array_function_dispatch = functools.partial( + overrides.array_function_dispatch, module='numpy') + + +def _atleast_1d_dispatcher(*arys): + return arys + + +@array_function_dispatch(_atleast_1d_dispatcher) +def atleast_1d(*arys): + """ + Convert inputs to arrays with at least one dimension. + + Scalar inputs are converted to 1-dimensional arrays, whilst + higher-dimensional inputs are preserved. + + Parameters + ---------- + arys1, arys2, ... : array_like + One or more input arrays. + + Returns + ------- + ret : ndarray + An array, or tuple of arrays, each with ``a.ndim >= 1``. + Copies are made only if necessary. + + See Also + -------- + atleast_2d, atleast_3d + + Examples + -------- + >>> import numpy as np + >>> np.atleast_1d(1.0) + array([1.]) + + >>> x = np.arange(9.0).reshape(3,3) + >>> np.atleast_1d(x) + array([[0., 1., 2.], + [3., 4., 5.], + [6., 7., 8.]]) + >>> np.atleast_1d(x) is x + True + + >>> np.atleast_1d(1, [3, 4]) + (array([1]), array([3, 4])) + + """ + if len(arys) == 1: + result = asanyarray(arys[0]) + if result.ndim == 0: + result = result.reshape(1) + return result + res = [] + for ary in arys: + result = asanyarray(ary) + if result.ndim == 0: + result = result.reshape(1) + res.append(result) + return tuple(res) + + +def _atleast_2d_dispatcher(*arys): + return arys + + +@array_function_dispatch(_atleast_2d_dispatcher) +def atleast_2d(*arys): + """ + View inputs as arrays with at least two dimensions. + + Parameters + ---------- + arys1, arys2, ... : array_like + One or more array-like sequences. Non-array inputs are converted + to arrays. Arrays that already have two or more dimensions are + preserved. + + Returns + ------- + res, res2, ... : ndarray + An array, or tuple of arrays, each with ``a.ndim >= 2``. + Copies are avoided where possible, and views with two or more + dimensions are returned. + + See Also + -------- + atleast_1d, atleast_3d + + Examples + -------- + >>> import numpy as np + >>> np.atleast_2d(3.0) + array([[3.]]) + + >>> x = np.arange(3.0) + >>> np.atleast_2d(x) + array([[0., 1., 2.]]) + >>> np.atleast_2d(x).base is x + True + + >>> np.atleast_2d(1, [1, 2], [[1, 2]]) + (array([[1]]), array([[1, 2]]), array([[1, 2]])) + + """ + res = [] + for ary in arys: + ary = asanyarray(ary) + if ary.ndim == 0: + result = ary.reshape(1, 1) + elif ary.ndim == 1: + result = ary[_nx.newaxis, :] + else: + result = ary + res.append(result) + if len(res) == 1: + return res[0] + else: + return tuple(res) + + +def _atleast_3d_dispatcher(*arys): + return arys + + +@array_function_dispatch(_atleast_3d_dispatcher) +def atleast_3d(*arys): + """ + View inputs as arrays with at least three dimensions. + + Parameters + ---------- + arys1, arys2, ... : array_like + One or more array-like sequences. Non-array inputs are converted to + arrays. Arrays that already have three or more dimensions are + preserved. + + Returns + ------- + res1, res2, ... : ndarray + An array, or tuple of arrays, each with ``a.ndim >= 3``. Copies are + avoided where possible, and views with three or more dimensions are + returned. For example, a 1-D array of shape ``(N,)`` becomes a view + of shape ``(1, N, 1)``, and a 2-D array of shape ``(M, N)`` becomes a + view of shape ``(M, N, 1)``. + + See Also + -------- + atleast_1d, atleast_2d + + Examples + -------- + >>> import numpy as np + >>> np.atleast_3d(3.0) + array([[[3.]]]) + + >>> x = np.arange(3.0) + >>> np.atleast_3d(x).shape + (1, 3, 1) + + >>> x = np.arange(12.0).reshape(4,3) + >>> np.atleast_3d(x).shape + (4, 3, 1) + >>> np.atleast_3d(x).base is x.base # x is a reshape, so not base itself + True + + >>> for arr in np.atleast_3d([1, 2], [[1, 2]], [[[1, 2]]]): + ... print(arr, arr.shape) # doctest: +SKIP + ... + [[[1] + [2]]] (1, 2, 1) + [[[1] + [2]]] (1, 2, 1) + [[[1 2]]] (1, 1, 2) + + """ + res = [] + for ary in arys: + ary = asanyarray(ary) + if ary.ndim == 0: + result = ary.reshape(1, 1, 1) + elif ary.ndim == 1: + result = ary[_nx.newaxis, :, _nx.newaxis] + elif ary.ndim == 2: + result = ary[:, :, _nx.newaxis] + else: + result = ary + res.append(result) + if len(res) == 1: + return res[0] + else: + return tuple(res) + + +def _arrays_for_stack_dispatcher(arrays): + if not hasattr(arrays, "__getitem__"): + raise TypeError('arrays to stack must be passed as a "sequence" type ' + 'such as list or tuple.') + + return tuple(arrays) + + +def _vhstack_dispatcher(tup, *, dtype=None, casting=None): + return _arrays_for_stack_dispatcher(tup) + + +@array_function_dispatch(_vhstack_dispatcher) +def vstack(tup, *, dtype=None, casting="same_kind"): + """ + Stack arrays in sequence vertically (row wise). + + This is equivalent to concatenation along the first axis after 1-D arrays + of shape `(N,)` have been reshaped to `(1,N)`. Rebuilds arrays divided by + `vsplit`. + + This function makes most sense for arrays with up to 3 dimensions. For + instance, for pixel-data with a height (first axis), width (second axis), + and r/g/b channels (third axis). The functions `concatenate`, `stack` and + `block` provide more general stacking and concatenation operations. + + Parameters + ---------- + tup : sequence of ndarrays + The arrays must have the same shape along all but the first axis. + 1-D arrays must have the same length. In the case of a single + array_like input, it will be treated as a sequence of arrays; i.e., + each element along the zeroth axis is treated as a separate array. + + dtype : str or dtype + If provided, the destination array will have this dtype. Cannot be + provided together with `out`. + + .. versionadded:: 1.24 + + casting : {'no', 'equiv', 'safe', 'same_kind', 'unsafe'}, optional + Controls what kind of data casting may occur. Defaults to 'same_kind'. + + .. versionadded:: 1.24 + + Returns + ------- + stacked : ndarray + The array formed by stacking the given arrays, will be at least 2-D. + + See Also + -------- + concatenate : Join a sequence of arrays along an existing axis. + stack : Join a sequence of arrays along a new axis. + block : Assemble an nd-array from nested lists of blocks. + hstack : Stack arrays in sequence horizontally (column wise). + dstack : Stack arrays in sequence depth wise (along third axis). + column_stack : Stack 1-D arrays as columns into a 2-D array. + vsplit : Split an array into multiple sub-arrays vertically (row-wise). + unstack : Split an array into a tuple of sub-arrays along an axis. + + Examples + -------- + >>> import numpy as np + >>> a = np.array([1, 2, 3]) + >>> b = np.array([4, 5, 6]) + >>> np.vstack((a,b)) + array([[1, 2, 3], + [4, 5, 6]]) + + >>> a = np.array([[1], [2], [3]]) + >>> b = np.array([[4], [5], [6]]) + >>> np.vstack((a,b)) + array([[1], + [2], + [3], + [4], + [5], + [6]]) + + """ + arrs = atleast_2d(*tup) + if not isinstance(arrs, tuple): + arrs = (arrs,) + return _nx.concatenate(arrs, 0, dtype=dtype, casting=casting) + + +@array_function_dispatch(_vhstack_dispatcher) +def hstack(tup, *, dtype=None, casting="same_kind"): + """ + Stack arrays in sequence horizontally (column wise). + + This is equivalent to concatenation along the second axis, except for 1-D + arrays where it concatenates along the first axis. Rebuilds arrays divided + by `hsplit`. + + This function makes most sense for arrays with up to 3 dimensions. For + instance, for pixel-data with a height (first axis), width (second axis), + and r/g/b channels (third axis). The functions `concatenate`, `stack` and + `block` provide more general stacking and concatenation operations. + + Parameters + ---------- + tup : sequence of ndarrays + The arrays must have the same shape along all but the second axis, + except 1-D arrays which can be any length. In the case of a single + array_like input, it will be treated as a sequence of arrays; i.e., + each element along the zeroth axis is treated as a separate array. + + dtype : str or dtype + If provided, the destination array will have this dtype. Cannot be + provided together with `out`. + + .. versionadded:: 1.24 + + casting : {'no', 'equiv', 'safe', 'same_kind', 'unsafe'}, optional + Controls what kind of data casting may occur. Defaults to 'same_kind'. + + .. versionadded:: 1.24 + + Returns + ------- + stacked : ndarray + The array formed by stacking the given arrays. + + See Also + -------- + concatenate : Join a sequence of arrays along an existing axis. + stack : Join a sequence of arrays along a new axis. + block : Assemble an nd-array from nested lists of blocks. + vstack : Stack arrays in sequence vertically (row wise). + dstack : Stack arrays in sequence depth wise (along third axis). + column_stack : Stack 1-D arrays as columns into a 2-D array. + hsplit : Split an array into multiple sub-arrays + horizontally (column-wise). + unstack : Split an array into a tuple of sub-arrays along an axis. + + Examples + -------- + >>> import numpy as np + >>> a = np.array((1,2,3)) + >>> b = np.array((4,5,6)) + >>> np.hstack((a,b)) + array([1, 2, 3, 4, 5, 6]) + >>> a = np.array([[1],[2],[3]]) + >>> b = np.array([[4],[5],[6]]) + >>> np.hstack((a,b)) + array([[1, 4], + [2, 5], + [3, 6]]) + + """ + arrs = atleast_1d(*tup) + if not isinstance(arrs, tuple): + arrs = (arrs,) + # As a special case, dimension 0 of 1-dimensional arrays is "horizontal" + if arrs and arrs[0].ndim == 1: + return _nx.concatenate(arrs, 0, dtype=dtype, casting=casting) + else: + return _nx.concatenate(arrs, 1, dtype=dtype, casting=casting) + + +def _stack_dispatcher(arrays, axis=None, out=None, *, + dtype=None, casting=None): + arrays = _arrays_for_stack_dispatcher(arrays) + if out is not None: + # optimize for the typical case where only arrays is provided + arrays = list(arrays) + arrays.append(out) + return arrays + + +@array_function_dispatch(_stack_dispatcher) +def stack(arrays, axis=0, out=None, *, dtype=None, casting="same_kind"): + """ + Join a sequence of arrays along a new axis. + + The ``axis`` parameter specifies the index of the new axis in the + dimensions of the result. For example, if ``axis=0`` it will be the first + dimension and if ``axis=-1`` it will be the last dimension. + + Parameters + ---------- + arrays : sequence of ndarrays + Each array must have the same shape. In the case of a single ndarray + array_like input, it will be treated as a sequence of arrays; i.e., + each element along the zeroth axis is treated as a separate array. + + axis : int, optional + The axis in the result array along which the input arrays are stacked. + + out : ndarray, optional + If provided, the destination to place the result. The shape must be + correct, matching that of what stack would have returned if no + out argument were specified. + + dtype : str or dtype + If provided, the destination array will have this dtype. Cannot be + provided together with `out`. + + .. versionadded:: 1.24 + + casting : {'no', 'equiv', 'safe', 'same_kind', 'unsafe'}, optional + Controls what kind of data casting may occur. Defaults to 'same_kind'. + + .. versionadded:: 1.24 + + + Returns + ------- + stacked : ndarray + The stacked array has one more dimension than the input arrays. + + See Also + -------- + concatenate : Join a sequence of arrays along an existing axis. + block : Assemble an nd-array from nested lists of blocks. + split : Split array into a list of multiple sub-arrays of equal size. + unstack : Split an array into a tuple of sub-arrays along an axis. + + Examples + -------- + >>> import numpy as np + >>> rng = np.random.default_rng() + >>> arrays = [rng.normal(size=(3,4)) for _ in range(10)] + >>> np.stack(arrays, axis=0).shape + (10, 3, 4) + + >>> np.stack(arrays, axis=1).shape + (3, 10, 4) + + >>> np.stack(arrays, axis=2).shape + (3, 4, 10) + + >>> a = np.array([1, 2, 3]) + >>> b = np.array([4, 5, 6]) + >>> np.stack((a, b)) + array([[1, 2, 3], + [4, 5, 6]]) + + >>> np.stack((a, b), axis=-1) + array([[1, 4], + [2, 5], + [3, 6]]) + + """ + arrays = [asanyarray(arr) for arr in arrays] + if not arrays: + raise ValueError('need at least one array to stack') + + shapes = {arr.shape for arr in arrays} + if len(shapes) != 1: + raise ValueError('all input arrays must have the same shape') + + result_ndim = arrays[0].ndim + 1 + axis = normalize_axis_index(axis, result_ndim) + + sl = (slice(None),) * axis + (_nx.newaxis,) + expanded_arrays = [arr[sl] for arr in arrays] + return _nx.concatenate(expanded_arrays, axis=axis, out=out, + dtype=dtype, casting=casting) + +def _unstack_dispatcher(x, /, *, axis=None): + return (x,) + +@array_function_dispatch(_unstack_dispatcher) +def unstack(x, /, *, axis=0): + """ + Split an array into a sequence of arrays along the given axis. + + The ``axis`` parameter specifies the dimension along which the array will + be split. For example, if ``axis=0`` (the default) it will be the first + dimension and if ``axis=-1`` it will be the last dimension. + + The result is a tuple of arrays split along ``axis``. + + .. versionadded:: 2.1.0 + + Parameters + ---------- + x : ndarray + The array to be unstacked. + axis : int, optional + Axis along which the array will be split. Default: ``0``. + + Returns + ------- + unstacked : tuple of ndarrays + The unstacked arrays. + + See Also + -------- + stack : Join a sequence of arrays along a new axis. + concatenate : Join a sequence of arrays along an existing axis. + block : Assemble an nd-array from nested lists of blocks. + split : Split array into a list of multiple sub-arrays of equal size. + + Notes + ----- + ``unstack`` serves as the reverse operation of :py:func:`stack`, i.e., + ``stack(unstack(x, axis=axis), axis=axis) == x``. + + This function is equivalent to ``tuple(np.moveaxis(x, axis, 0))``, since + iterating on an array iterates along the first axis. + + Examples + -------- + >>> arr = np.arange(24).reshape((2, 3, 4)) + >>> np.unstack(arr) + (array([[ 0, 1, 2, 3], + [ 4, 5, 6, 7], + [ 8, 9, 10, 11]]), + array([[12, 13, 14, 15], + [16, 17, 18, 19], + [20, 21, 22, 23]])) + >>> np.unstack(arr, axis=1) + (array([[ 0, 1, 2, 3], + [12, 13, 14, 15]]), + array([[ 4, 5, 6, 7], + [16, 17, 18, 19]]), + array([[ 8, 9, 10, 11], + [20, 21, 22, 23]])) + >>> arr2 = np.stack(np.unstack(arr, axis=1), axis=1) + >>> arr2.shape + (2, 3, 4) + >>> np.all(arr == arr2) + np.True_ + + """ + if x.ndim == 0: + raise ValueError("Input array must be at least 1-d.") + return tuple(_nx.moveaxis(x, axis, 0)) + + +# Internal functions to eliminate the overhead of repeated dispatch in one of +# the two possible paths inside np.block. +# Use getattr to protect against __array_function__ being disabled. +_size = getattr(_from_nx.size, '__wrapped__', _from_nx.size) +_ndim = getattr(_from_nx.ndim, '__wrapped__', _from_nx.ndim) +_concatenate = getattr(_from_nx.concatenate, + '__wrapped__', _from_nx.concatenate) + + +def _block_format_index(index): + """ + Convert a list of indices ``[0, 1, 2]`` into ``"arrays[0][1][2]"``. + """ + idx_str = ''.join(f'[{i}]' for i in index if i is not None) + return 'arrays' + idx_str + + +def _block_check_depths_match(arrays, parent_index=[]): + """ + Recursive function checking that the depths of nested lists in `arrays` + all match. Mismatch raises a ValueError as described in the block + docstring below. + + The entire index (rather than just the depth) needs to be calculated + for each innermost list, in case an error needs to be raised, so that + the index of the offending list can be printed as part of the error. + + Parameters + ---------- + arrays : nested list of arrays + The arrays to check + parent_index : list of int + The full index of `arrays` within the nested lists passed to + `_block_check_depths_match` at the top of the recursion. + + Returns + ------- + first_index : list of int + The full index of an element from the bottom of the nesting in + `arrays`. If any element at the bottom is an empty list, this will + refer to it, and the last index along the empty axis will be None. + max_arr_ndim : int + The maximum of the ndims of the arrays nested in `arrays`. + final_size: int + The number of elements in the final array. This is used the motivate + the choice of algorithm used using benchmarking wisdom. + + """ + if isinstance(arrays, tuple): + # not strictly necessary, but saves us from: + # - more than one way to do things - no point treating tuples like + # lists + # - horribly confusing behaviour that results when tuples are + # treated like ndarray + raise TypeError( + f'{_block_format_index(parent_index)} is a tuple. ' + 'Only lists can be used to arrange blocks, and np.block does ' + 'not allow implicit conversion from tuple to ndarray.' + ) + elif isinstance(arrays, list) and len(arrays) > 0: + idxs_ndims = (_block_check_depths_match(arr, parent_index + [i]) + for i, arr in enumerate(arrays)) + + first_index, max_arr_ndim, final_size = next(idxs_ndims) + for index, ndim, size in idxs_ndims: + final_size += size + if ndim > max_arr_ndim: + max_arr_ndim = ndim + if len(index) != len(first_index): + raise ValueError( + "List depths are mismatched. First element was at " + f"depth {len(first_index)}, but there is an element at " + f"depth {len(index)} ({_block_format_index(index)})" + ) + # propagate our flag that indicates an empty list at the bottom + if index[-1] is None: + first_index = index + + return first_index, max_arr_ndim, final_size + elif isinstance(arrays, list) and len(arrays) == 0: + # We've 'bottomed out' on an empty list + return parent_index + [None], 0, 0 + else: + # We've 'bottomed out' - arrays is either a scalar or an array + size = _size(arrays) + return parent_index, _ndim(arrays), size + + +def _atleast_nd(a, ndim): + # Ensures `a` has at least `ndim` dimensions by prepending + # ones to `a.shape` as necessary + return array(a, ndmin=ndim, copy=None, subok=True) + + +def _accumulate(values): + return list(itertools.accumulate(values)) + + +def _concatenate_shapes(shapes, axis): + """Given array shapes, return the resulting shape and slices prefixes. + + These help in nested concatenation. + + Returns + ------- + shape: tuple of int + This tuple satisfies:: + + shape, _ = _concatenate_shapes([arr.shape for shape in arrs], axis) + shape == concatenate(arrs, axis).shape + + slice_prefixes: tuple of (slice(start, end), ) + For a list of arrays being concatenated, this returns the slice + in the larger array at axis that needs to be sliced into. + + For example, the following holds:: + + ret = concatenate([a, b, c], axis) + _, (sl_a, sl_b, sl_c) = concatenate_slices([a, b, c], axis) + + ret[(slice(None),) * axis + sl_a] == a + ret[(slice(None),) * axis + sl_b] == b + ret[(slice(None),) * axis + sl_c] == c + + These are called slice prefixes since they are used in the recursive + blocking algorithm to compute the left-most slices during the + recursion. Therefore, they must be prepended to rest of the slice + that was computed deeper in the recursion. + + These are returned as tuples to ensure that they can quickly be added + to existing slice tuple without creating a new tuple every time. + + """ + # Cache a result that will be reused. + shape_at_axis = [shape[axis] for shape in shapes] + + # Take a shape, any shape + first_shape = shapes[0] + first_shape_pre = first_shape[:axis] + first_shape_post = first_shape[axis + 1:] + + if any(shape[:axis] != first_shape_pre or + shape[axis + 1:] != first_shape_post for shape in shapes): + raise ValueError( + f'Mismatched array shapes in block along axis {axis}.') + + shape = (first_shape_pre + (sum(shape_at_axis),) + first_shape[axis + 1:]) + + offsets_at_axis = _accumulate(shape_at_axis) + slice_prefixes = [(slice(start, end),) + for start, end in zip([0] + offsets_at_axis, + offsets_at_axis)] + return shape, slice_prefixes + + +def _block_info_recursion(arrays, max_depth, result_ndim, depth=0): + """ + Returns the shape of the final array, along with a list + of slices and a list of arrays that can be used for assignment inside the + new array + + Parameters + ---------- + arrays : nested list of arrays + The arrays to check + max_depth : list of int + The number of nested lists + result_ndim : int + The number of dimensions in thefinal array. + + Returns + ------- + shape : tuple of int + The shape that the final array will take on. + slices: list of tuple of slices + The slices into the full array required for assignment. These are + required to be prepended with ``(Ellipsis, )`` to obtain to correct + final index. + arrays: list of ndarray + The data to assign to each slice of the full array + + """ + if depth < max_depth: + shapes, slices, arrays = zip( + *[_block_info_recursion(arr, max_depth, result_ndim, depth + 1) + for arr in arrays]) + + axis = result_ndim - max_depth + depth + shape, slice_prefixes = _concatenate_shapes(shapes, axis) + + # Prepend the slice prefix and flatten the slices + slices = [slice_prefix + the_slice + for slice_prefix, inner_slices in zip(slice_prefixes, slices) + for the_slice in inner_slices] + + # Flatten the array list + arrays = functools.reduce(operator.add, arrays) + + return shape, slices, arrays + else: + # We've 'bottomed out' - arrays is either a scalar or an array + # type(arrays) is not list + # Return the slice and the array inside a list to be consistent with + # the recursive case. + arr = _atleast_nd(arrays, result_ndim) + return arr.shape, [()], [arr] + + +def _block(arrays, max_depth, result_ndim, depth=0): + """ + Internal implementation of block based on repeated concatenation. + `arrays` is the argument passed to + block. `max_depth` is the depth of nested lists within `arrays` and + `result_ndim` is the greatest of the dimensions of the arrays in + `arrays` and the depth of the lists in `arrays` (see block docstring + for details). + """ + if depth < max_depth: + arrs = [_block(arr, max_depth, result_ndim, depth + 1) + for arr in arrays] + return _concatenate(arrs, axis=-(max_depth - depth)) + else: + # We've 'bottomed out' - arrays is either a scalar or an array + # type(arrays) is not list + return _atleast_nd(arrays, result_ndim) + + +def _block_dispatcher(arrays): + # Use type(...) is list to match the behavior of np.block(), which special + # cases list specifically rather than allowing for generic iterables or + # tuple. Also, we know that list.__array_function__ will never exist. + if isinstance(arrays, list): + for subarrays in arrays: + yield from _block_dispatcher(subarrays) + else: + yield arrays + + +@array_function_dispatch(_block_dispatcher) +def block(arrays): + """ + Assemble an nd-array from nested lists of blocks. + + Blocks in the innermost lists are concatenated (see `concatenate`) along + the last dimension (-1), then these are concatenated along the + second-last dimension (-2), and so on until the outermost list is reached. + + Blocks can be of any dimension, but will not be broadcasted using + the normal rules. Instead, leading axes of size 1 are inserted, + to make ``block.ndim`` the same for all blocks. This is primarily useful + for working with scalars, and means that code like ``np.block([v, 1])`` + is valid, where ``v.ndim == 1``. + + When the nested list is two levels deep, this allows block matrices to be + constructed from their components. + + Parameters + ---------- + arrays : nested list of array_like or scalars (but not tuples) + If passed a single ndarray or scalar (a nested list of depth 0), this + is returned unmodified (and not copied). + + Elements shapes must match along the appropriate axes (without + broadcasting), but leading 1s will be prepended to the shape as + necessary to make the dimensions match. + + Returns + ------- + block_array : ndarray + The array assembled from the given blocks. + + The dimensionality of the output is equal to the greatest of: + + * the dimensionality of all the inputs + * the depth to which the input list is nested + + Raises + ------ + ValueError + * If list depths are mismatched - for instance, ``[[a, b], c]`` is + illegal, and should be spelt ``[[a, b], [c]]`` + * If lists are empty - for instance, ``[[a, b], []]`` + + See Also + -------- + concatenate : Join a sequence of arrays along an existing axis. + stack : Join a sequence of arrays along a new axis. + vstack : Stack arrays in sequence vertically (row wise). + hstack : Stack arrays in sequence horizontally (column wise). + dstack : Stack arrays in sequence depth wise (along third axis). + column_stack : Stack 1-D arrays as columns into a 2-D array. + vsplit : Split an array into multiple sub-arrays vertically (row-wise). + unstack : Split an array into a tuple of sub-arrays along an axis. + + Notes + ----- + When called with only scalars, ``np.block`` is equivalent to an ndarray + call. So ``np.block([[1, 2], [3, 4]])`` is equivalent to + ``np.array([[1, 2], [3, 4]])``. + + This function does not enforce that the blocks lie on a fixed grid. + ``np.block([[a, b], [c, d]])`` is not restricted to arrays of the form:: + + AAAbb + AAAbb + cccDD + + But is also allowed to produce, for some ``a, b, c, d``:: + + AAAbb + AAAbb + cDDDD + + Since concatenation happens along the last axis first, `block` is *not* + capable of producing the following directly:: + + AAAbb + cccbb + cccDD + + Matlab's "square bracket stacking", ``[A, B, ...; p, q, ...]``, is + equivalent to ``np.block([[A, B, ...], [p, q, ...]])``. + + Examples + -------- + The most common use of this function is to build a block matrix: + + >>> import numpy as np + >>> A = np.eye(2) * 2 + >>> B = np.eye(3) * 3 + >>> np.block([ + ... [A, np.zeros((2, 3))], + ... [np.ones((3, 2)), B ] + ... ]) + array([[2., 0., 0., 0., 0.], + [0., 2., 0., 0., 0.], + [1., 1., 3., 0., 0.], + [1., 1., 0., 3., 0.], + [1., 1., 0., 0., 3.]]) + + With a list of depth 1, `block` can be used as `hstack`: + + >>> np.block([1, 2, 3]) # hstack([1, 2, 3]) + array([1, 2, 3]) + + >>> a = np.array([1, 2, 3]) + >>> b = np.array([4, 5, 6]) + >>> np.block([a, b, 10]) # hstack([a, b, 10]) + array([ 1, 2, 3, 4, 5, 6, 10]) + + >>> A = np.ones((2, 2), int) + >>> B = 2 * A + >>> np.block([A, B]) # hstack([A, B]) + array([[1, 1, 2, 2], + [1, 1, 2, 2]]) + + With a list of depth 2, `block` can be used in place of `vstack`: + + >>> a = np.array([1, 2, 3]) + >>> b = np.array([4, 5, 6]) + >>> np.block([[a], [b]]) # vstack([a, b]) + array([[1, 2, 3], + [4, 5, 6]]) + + >>> A = np.ones((2, 2), int) + >>> B = 2 * A + >>> np.block([[A], [B]]) # vstack([A, B]) + array([[1, 1], + [1, 1], + [2, 2], + [2, 2]]) + + It can also be used in place of `atleast_1d` and `atleast_2d`: + + >>> a = np.array(0) + >>> b = np.array([1]) + >>> np.block([a]) # atleast_1d(a) + array([0]) + >>> np.block([b]) # atleast_1d(b) + array([1]) + + >>> np.block([[a]]) # atleast_2d(a) + array([[0]]) + >>> np.block([[b]]) # atleast_2d(b) + array([[1]]) + + + """ + arrays, list_ndim, result_ndim, final_size = _block_setup(arrays) + + # It was found through benchmarking that making an array of final size + # around 256x256 was faster by straight concatenation on a + # i7-7700HQ processor and dual channel ram 2400MHz. + # It didn't seem to matter heavily on the dtype used. + # + # A 2D array using repeated concatenation requires 2 copies of the array. + # + # The fastest algorithm will depend on the ratio of CPU power to memory + # speed. + # One can monitor the results of the benchmark + # https://pv.github.io/numpy-bench/#bench_shape_base.Block2D.time_block2d + # to tune this parameter until a C version of the `_block_info_recursion` + # algorithm is implemented which would likely be faster than the python + # version. + if list_ndim * final_size > (2 * 512 * 512): + return _block_slicing(arrays, list_ndim, result_ndim) + else: + return _block_concatenate(arrays, list_ndim, result_ndim) + + +# These helper functions are mostly used for testing. +# They allow us to write tests that directly call `_block_slicing` +# or `_block_concatenate` without blocking large arrays to force the wisdom +# to trigger the desired path. +def _block_setup(arrays): + """ + Returns + (`arrays`, list_ndim, result_ndim, final_size) + """ + bottom_index, arr_ndim, final_size = _block_check_depths_match(arrays) + list_ndim = len(bottom_index) + if bottom_index and bottom_index[-1] is None: + raise ValueError( + f'List at {_block_format_index(bottom_index)} cannot be empty' + ) + result_ndim = max(arr_ndim, list_ndim) + return arrays, list_ndim, result_ndim, final_size + + +def _block_slicing(arrays, list_ndim, result_ndim): + shape, slices, arrays = _block_info_recursion( + arrays, list_ndim, result_ndim) + dtype = _nx.result_type(*[arr.dtype for arr in arrays]) + + # Test preferring F only in the case that all input arrays are F + F_order = all(arr.flags['F_CONTIGUOUS'] for arr in arrays) + C_order = all(arr.flags['C_CONTIGUOUS'] for arr in arrays) + order = 'F' if F_order and not C_order else 'C' + result = _nx.empty(shape=shape, dtype=dtype, order=order) + # Note: In a c implementation, the function + # PyArray_CreateMultiSortedStridePerm could be used for more advanced + # guessing of the desired order. + + for the_slice, arr in zip(slices, arrays): + result[(Ellipsis,) + the_slice] = arr + return result + + +def _block_concatenate(arrays, list_ndim, result_ndim): + result = _block(arrays, list_ndim, result_ndim) + if list_ndim == 0: + # Catch an edge case where _block returns a view because + # `arrays` is a single numpy array and not a list of numpy arrays. + # This might copy scalars or lists twice, but this isn't a likely + # usecase for those interested in performance + result = result.copy() + return result diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/shape_base.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/shape_base.pyi new file mode 100644 index 0000000000000000000000000000000000000000..b87cae8a5f0fdd479f4ef978f1fa251c5a152bb0 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/shape_base.pyi @@ -0,0 +1,182 @@ +from collections.abc import Sequence +from typing import Any, SupportsIndex, TypeVar, overload + +from numpy import _CastingKind, generic +from numpy._typing import ArrayLike, DTypeLike, NDArray, _ArrayLike, _DTypeLike + +__all__ = [ + "atleast_1d", + "atleast_2d", + "atleast_3d", + "block", + "hstack", + "stack", + "unstack", + "vstack", +] + +_T = TypeVar("_T") +_ScalarT = TypeVar("_ScalarT", bound=generic) +_ScalarT1 = TypeVar("_ScalarT1", bound=generic) +_ScalarT2 = TypeVar("_ScalarT2", bound=generic) +_ArrayT = TypeVar("_ArrayT", bound=NDArray[Any]) + +### + +# keep in sync with `numpy.ma.extras.atleast_1d` +@overload +def atleast_1d(a0: _ArrayLike[_ScalarT], /) -> NDArray[_ScalarT]: ... +@overload +def atleast_1d(a0: _ArrayLike[_ScalarT1], a1: _ArrayLike[_ScalarT2], /) -> tuple[NDArray[_ScalarT1], NDArray[_ScalarT2]]: ... +@overload +def atleast_1d(a0: _ArrayLike[_ScalarT], a1: _ArrayLike[_ScalarT], /, *arys: _ArrayLike[_ScalarT]) -> tuple[NDArray[_ScalarT], ...]: ... +@overload +def atleast_1d(a0: ArrayLike, /) -> NDArray[Any]: ... +@overload +def atleast_1d(a0: ArrayLike, a1: ArrayLike, /) -> tuple[NDArray[Any], NDArray[Any]]: ... +@overload +def atleast_1d(a0: ArrayLike, a1: ArrayLike, /, *ai: ArrayLike) -> tuple[NDArray[Any], ...]: ... + +# keep in sync with `numpy.ma.extras.atleast_2d` +@overload +def atleast_2d(a0: _ArrayLike[_ScalarT], /) -> NDArray[_ScalarT]: ... +@overload +def atleast_2d(a0: _ArrayLike[_ScalarT1], a1: _ArrayLike[_ScalarT2], /) -> tuple[NDArray[_ScalarT1], NDArray[_ScalarT2]]: ... +@overload +def atleast_2d(a0: _ArrayLike[_ScalarT], a1: _ArrayLike[_ScalarT], /, *arys: _ArrayLike[_ScalarT]) -> tuple[NDArray[_ScalarT], ...]: ... +@overload +def atleast_2d(a0: ArrayLike, /) -> NDArray[Any]: ... +@overload +def atleast_2d(a0: ArrayLike, a1: ArrayLike, /) -> tuple[NDArray[Any], NDArray[Any]]: ... +@overload +def atleast_2d(a0: ArrayLike, a1: ArrayLike, /, *ai: ArrayLike) -> tuple[NDArray[Any], ...]: ... + +# keep in sync with `numpy.ma.extras.atleast_3d` +@overload +def atleast_3d(a0: _ArrayLike[_ScalarT], /) -> NDArray[_ScalarT]: ... +@overload +def atleast_3d(a0: _ArrayLike[_ScalarT1], a1: _ArrayLike[_ScalarT2], /) -> tuple[NDArray[_ScalarT1], NDArray[_ScalarT2]]: ... +@overload +def atleast_3d(a0: _ArrayLike[_ScalarT], a1: _ArrayLike[_ScalarT], /, *arys: _ArrayLike[_ScalarT]) -> tuple[NDArray[_ScalarT], ...]: ... +@overload +def atleast_3d(a0: ArrayLike, /) -> NDArray[Any]: ... +@overload +def atleast_3d(a0: ArrayLike, a1: ArrayLike, /) -> tuple[NDArray[Any], NDArray[Any]]: ... +@overload +def atleast_3d(a0: ArrayLike, a1: ArrayLike, /, *ai: ArrayLike) -> tuple[NDArray[Any], ...]: ... + +# used by numpy.lib._shape_base_impl +def _arrays_for_stack_dispatcher(arrays: Sequence[_T]) -> tuple[_T, ...]: ... + +# keep in sync with `numpy.ma.extras.vstack` +@overload +def vstack( + tup: Sequence[_ArrayLike[_ScalarT]], + *, + dtype: None = None, + casting: _CastingKind = "same_kind" +) -> NDArray[_ScalarT]: ... +@overload +def vstack( + tup: Sequence[ArrayLike], + *, + dtype: _DTypeLike[_ScalarT], + casting: _CastingKind = "same_kind" +) -> NDArray[_ScalarT]: ... +@overload +def vstack( + tup: Sequence[ArrayLike], + *, + dtype: DTypeLike | None = None, + casting: _CastingKind = "same_kind" +) -> NDArray[Any]: ... + +# keep in sync with `numpy.ma.extras.hstack` +@overload +def hstack( + tup: Sequence[_ArrayLike[_ScalarT]], + *, + dtype: None = None, + casting: _CastingKind = "same_kind" +) -> NDArray[_ScalarT]: ... +@overload +def hstack( + tup: Sequence[ArrayLike], + *, + dtype: _DTypeLike[_ScalarT], + casting: _CastingKind = "same_kind" +) -> NDArray[_ScalarT]: ... +@overload +def hstack( + tup: Sequence[ArrayLike], + *, + dtype: DTypeLike | None = None, + casting: _CastingKind = "same_kind" +) -> NDArray[Any]: ... + +# keep in sync with `numpy.ma.extras.stack` +@overload +def stack( + arrays: Sequence[_ArrayLike[_ScalarT]], + axis: SupportsIndex = 0, + out: None = None, + *, + dtype: None = None, + casting: _CastingKind = "same_kind" +) -> NDArray[_ScalarT]: ... +@overload +def stack( + arrays: Sequence[ArrayLike], + axis: SupportsIndex = 0, + out: None = None, + *, + dtype: _DTypeLike[_ScalarT], + casting: _CastingKind = "same_kind" +) -> NDArray[_ScalarT]: ... +@overload +def stack( + arrays: Sequence[ArrayLike], + axis: SupportsIndex = 0, + out: None = None, + *, + dtype: DTypeLike | None = None, + casting: _CastingKind = "same_kind" +) -> NDArray[Any]: ... +@overload +def stack( + arrays: Sequence[ArrayLike], + axis: SupportsIndex, + out: _ArrayT, + *, + dtype: DTypeLike | None = None, + casting: _CastingKind = "same_kind", +) -> _ArrayT: ... +@overload +def stack( + arrays: Sequence[ArrayLike], + axis: SupportsIndex = 0, + *, + out: _ArrayT, + dtype: DTypeLike | None = None, + casting: _CastingKind = "same_kind", +) -> _ArrayT: ... + +@overload +def unstack( + array: _ArrayLike[_ScalarT], + /, + *, + axis: int = 0, +) -> tuple[NDArray[_ScalarT], ...]: ... +@overload +def unstack( + array: ArrayLike, + /, + *, + axis: int = 0, +) -> tuple[NDArray[Any], ...]: ... + +@overload +def block(arrays: _ArrayLike[_ScalarT]) -> NDArray[_ScalarT]: ... +@overload +def block(arrays: ArrayLike) -> NDArray[Any]: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/strings.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/strings.py new file mode 100644 index 0000000000000000000000000000000000000000..e9fa7f58e3ea5c50182038e0644e96f5c73f9c63 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/strings.py @@ -0,0 +1,1813 @@ +""" +This module contains a set of functions for vectorized string +operations. +""" + +import functools +import sys + +import numpy as np +from numpy import ( + add, + equal, + greater, + greater_equal, + less, + less_equal, + multiply as _multiply_ufunc, + not_equal, +) +from numpy._core.multiarray import _vec_string +from numpy._core.overrides import array_function_dispatch, set_module +from numpy._core.umath import ( + _center, + _expandtabs, + _expandtabs_length, + _ljust, + _lstrip_chars, + _lstrip_whitespace, + _partition, + _partition_index, + _replace, + _rjust, + _rpartition, + _rpartition_index, + _rstrip_chars, + _rstrip_whitespace, + _slice, + _strip_chars, + _strip_whitespace, + _zfill, + count as _count_ufunc, + endswith as _endswith_ufunc, + find as _find_ufunc, + index as _index_ufunc, + isalnum, + isalpha, + isdecimal, + isdigit, + islower, + isnumeric, + isspace, + istitle, + isupper, + rfind as _rfind_ufunc, + rindex as _rindex_ufunc, + startswith as _startswith_ufunc, + str_len, +) + + +def _override___module__(): + for ufunc in [ + isalnum, isalpha, isdecimal, isdigit, islower, isnumeric, isspace, + istitle, isupper, str_len, + ]: + ufunc.__module__ = "numpy.strings" + ufunc.__qualname__ = ufunc.__name__ + + +_override___module__() + + +__all__ = [ + # UFuncs + "equal", "not_equal", "less", "less_equal", "greater", "greater_equal", + "add", "multiply", "isalpha", "isdigit", "isspace", "isalnum", "islower", + "isupper", "istitle", "isdecimal", "isnumeric", "str_len", "find", + "rfind", "index", "rindex", "count", "startswith", "endswith", "lstrip", + "rstrip", "strip", "replace", "expandtabs", "center", "ljust", "rjust", + "zfill", "partition", "rpartition", "slice", + + # _vec_string - Will gradually become ufuncs as well + "upper", "lower", "swapcase", "capitalize", "title", + + # _vec_string - Will probably not become ufuncs + "mod", "decode", "encode", "translate", + + # Removed from namespace until behavior has been crystallized + # "join", "split", "rsplit", "splitlines", +] + + +MAX = np.iinfo(np.int64).max + +array_function_dispatch = functools.partial( + array_function_dispatch, module='numpy.strings') + + +def _get_num_chars(a): + """ + Helper function that returns the number of characters per field in + a string or unicode array. This is to abstract out the fact that + for a unicode array this is itemsize / 4. + """ + if issubclass(a.dtype.type, np.str_): + return a.itemsize // 4 + return a.itemsize + + +def _to_bytes_or_str_array(result, output_dtype_like): + """ + Helper function to cast a result back into an array + with the appropriate dtype if an object array must be used + as an intermediary. + """ + output_dtype_like = np.asarray(output_dtype_like) + if result.size == 0: + # Calling asarray & tolist in an empty array would result + # in losing shape information + return result.astype(output_dtype_like.dtype) + ret = np.asarray(result.tolist()) + if isinstance(output_dtype_like.dtype, np.dtypes.StringDType): + return ret.astype(type(output_dtype_like.dtype)) + return ret.astype(type(output_dtype_like.dtype)(_get_num_chars(ret))) + + +def _clean_args(*args): + """ + Helper function for delegating arguments to Python string + functions. + + Many of the Python string operations that have optional arguments + do not use 'None' to indicate a default value. In these cases, + we need to remove all None arguments, and those following them. + """ + newargs = [] + for chk in args: + if chk is None: + break + newargs.append(chk) + return newargs + + +def _multiply_dispatcher(a, i): + return (a,) + + +@set_module("numpy.strings") +@array_function_dispatch(_multiply_dispatcher) +def multiply(a, i): + """ + Return (a * i), that is string multiple concatenation, + element-wise. + + Values in ``i`` of less than 0 are treated as 0 (which yields an + empty string). + + Parameters + ---------- + a : array_like, with ``StringDType``, ``bytes_`` or ``str_`` dtype + + i : array_like, with any integer dtype + + Returns + ------- + out : ndarray + Output array of ``StringDType``, ``bytes_`` or ``str_`` dtype, + depending on input types + + Examples + -------- + >>> import numpy as np + >>> a = np.array(["a", "b", "c"]) + >>> np.strings.multiply(a, 3) + array(['aaa', 'bbb', 'ccc'], dtype='>> i = np.array([1, 2, 3]) + >>> np.strings.multiply(a, i) + array(['a', 'bb', 'ccc'], dtype='>> np.strings.multiply(np.array(['a']), i) + array(['a', 'aa', 'aaa'], dtype='>> a = np.array(['a', 'b', 'c', 'd', 'e', 'f']).reshape((2, 3)) + >>> np.strings.multiply(a, 3) + array([['aaa', 'bbb', 'ccc'], + ['ddd', 'eee', 'fff']], dtype='>> np.strings.multiply(a, i) + array([['a', 'bb', 'ccc'], + ['d', 'ee', 'fff']], dtype=' sys.maxsize / np.maximum(i, 1)): + raise OverflowError("Overflow encountered in string multiply") + + buffersizes = a_len * i + out_dtype = f"{a.dtype.char}{buffersizes.max()}" + out = np.empty_like(a, shape=buffersizes.shape, dtype=out_dtype) + return _multiply_ufunc(a, i, out=out) + + +def _mod_dispatcher(a, values): + return (a, values) + + +@set_module("numpy.strings") +@array_function_dispatch(_mod_dispatcher) +def mod(a, values): + """ + Return (a % i), that is pre-Python 2.6 string formatting + (interpolation), element-wise for a pair of array_likes of str + or unicode. + + Parameters + ---------- + a : array_like, with `np.bytes_` or `np.str_` dtype + + values : array_like of values + These values will be element-wise interpolated into the string. + + Returns + ------- + out : ndarray + Output array of ``StringDType``, ``bytes_`` or ``str_`` dtype, + depending on input types + + Examples + -------- + >>> import numpy as np + >>> a = np.array(["NumPy is a %s library"]) + >>> np.strings.mod(a, values=["Python"]) + array(['NumPy is a Python library'], dtype='>> a = np.array([b'%d bytes', b'%d bits']) + >>> values = np.array([8, 64]) + >>> np.strings.mod(a, values) + array([b'8 bytes', b'64 bits'], dtype='|S7') + + """ + return _to_bytes_or_str_array( + _vec_string(a, np.object_, '__mod__', (values,)), a) + + +@set_module("numpy.strings") +def find(a, sub, start=0, end=None): + """ + For each element, return the lowest index in the string where + substring ``sub`` is found, such that ``sub`` is contained in the + range [``start``, ``end``). + + Parameters + ---------- + a : array_like, with ``StringDType``, ``bytes_`` or ``str_`` dtype + + sub : array_like, with `np.bytes_` or `np.str_` dtype + The substring to search for. + + start, end : array_like, with any integer dtype + The range to look in, interpreted as in slice notation. + + Returns + ------- + y : ndarray + Output array of ints + + See Also + -------- + str.find + + Examples + -------- + >>> import numpy as np + >>> a = np.array(["NumPy is a Python library"]) + >>> np.strings.find(a, "Python") + array([11]) + + """ + end = end if end is not None else MAX + return _find_ufunc(a, sub, start, end) + + +@set_module("numpy.strings") +def rfind(a, sub, start=0, end=None): + """ + For each element, return the highest index in the string where + substring ``sub`` is found, such that ``sub`` is contained in the + range [``start``, ``end``). + + Parameters + ---------- + a : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + + sub : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + The substring to search for. + + start, end : array_like, with any integer dtype + The range to look in, interpreted as in slice notation. + + Returns + ------- + y : ndarray + Output array of ints + + See Also + -------- + str.rfind + + Examples + -------- + >>> import numpy as np + >>> a = np.array(["Computer Science"]) + >>> np.strings.rfind(a, "Science", start=0, end=None) + array([9]) + >>> np.strings.rfind(a, "Science", start=0, end=8) + array([-1]) + >>> b = np.array(["Computer Science", "Science"]) + >>> np.strings.rfind(b, "Science", start=0, end=None) + array([9, 0]) + + """ + end = end if end is not None else MAX + return _rfind_ufunc(a, sub, start, end) + + +@set_module("numpy.strings") +def index(a, sub, start=0, end=None): + """ + Like `find`, but raises :exc:`ValueError` when the substring is not found. + + Parameters + ---------- + a : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + + sub : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + + start, end : array_like, with any integer dtype, optional + + Returns + ------- + out : ndarray + Output array of ints. + + See Also + -------- + find, str.index + + Examples + -------- + >>> import numpy as np + >>> a = np.array(["Computer Science"]) + >>> np.strings.index(a, "Science", start=0, end=None) + array([9]) + + """ + end = end if end is not None else MAX + return _index_ufunc(a, sub, start, end) + + +@set_module("numpy.strings") +def rindex(a, sub, start=0, end=None): + """ + Like `rfind`, but raises :exc:`ValueError` when the substring `sub` is + not found. + + Parameters + ---------- + a : array-like, with `np.bytes_` or `np.str_` dtype + + sub : array-like, with `np.bytes_` or `np.str_` dtype + + start, end : array-like, with any integer dtype, optional + + Returns + ------- + out : ndarray + Output array of ints. + + See Also + -------- + rfind, str.rindex + + Examples + -------- + >>> a = np.array(["Computer Science"]) + >>> np.strings.rindex(a, "Science", start=0, end=None) + array([9]) + + """ + end = end if end is not None else MAX + return _rindex_ufunc(a, sub, start, end) + + +@set_module("numpy.strings") +def count(a, sub, start=0, end=None): + """ + Returns an array with the number of non-overlapping occurrences of + substring ``sub`` in the range [``start``, ``end``). + + Parameters + ---------- + a : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + + sub : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + The substring to search for. + + start, end : array_like, with any integer dtype + The range to look in, interpreted as in slice notation. + + Returns + ------- + y : ndarray + Output array of ints + + See Also + -------- + str.count + + Examples + -------- + >>> import numpy as np + >>> c = np.array(['aAaAaA', ' aA ', 'abBABba']) + >>> c + array(['aAaAaA', ' aA ', 'abBABba'], dtype='>> np.strings.count(c, 'A') + array([3, 1, 1]) + >>> np.strings.count(c, 'aA') + array([3, 1, 0]) + >>> np.strings.count(c, 'A', start=1, end=4) + array([2, 1, 1]) + >>> np.strings.count(c, 'A', start=1, end=3) + array([1, 0, 0]) + + """ + end = end if end is not None else MAX + return _count_ufunc(a, sub, start, end) + + +@set_module("numpy.strings") +def startswith(a, prefix, start=0, end=None): + """ + Returns a boolean array which is `True` where the string element + in ``a`` starts with ``prefix``, otherwise `False`. + + Parameters + ---------- + a : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + + prefix : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + + start, end : array_like, with any integer dtype + With ``start``, test beginning at that position. With ``end``, + stop comparing at that position. + + Returns + ------- + out : ndarray + Output array of bools + + See Also + -------- + str.startswith + + Examples + -------- + >>> import numpy as np + >>> s = np.array(['foo', 'bar']) + >>> s + array(['foo', 'bar'], dtype='>> np.strings.startswith(s, 'fo') + array([True, False]) + >>> np.strings.startswith(s, 'o', start=1, end=2) + array([True, False]) + + """ + end = end if end is not None else MAX + return _startswith_ufunc(a, prefix, start, end) + + +@set_module("numpy.strings") +def endswith(a, suffix, start=0, end=None): + """ + Returns a boolean array which is `True` where the string element + in ``a`` ends with ``suffix``, otherwise `False`. + + Parameters + ---------- + a : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + + suffix : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + + start, end : array_like, with any integer dtype + With ``start``, test beginning at that position. With ``end``, + stop comparing at that position. + + Returns + ------- + out : ndarray + Output array of bools + + See Also + -------- + str.endswith + + Examples + -------- + >>> import numpy as np + >>> s = np.array(['foo', 'bar']) + >>> s + array(['foo', 'bar'], dtype='>> np.strings.endswith(s, 'ar') + array([False, True]) + >>> np.strings.endswith(s, 'a', start=1, end=2) + array([False, True]) + + """ + end = end if end is not None else MAX + return _endswith_ufunc(a, suffix, start, end) + + +def _code_dispatcher(a, encoding=None, errors=None): + return (a,) + + +@set_module("numpy.strings") +@array_function_dispatch(_code_dispatcher) +def decode(a, encoding=None, errors=None): + r""" + Calls :meth:`bytes.decode` element-wise. + + The set of available codecs comes from the Python standard library, + and may be extended at runtime. For more information, see the + :mod:`codecs` module. + + Parameters + ---------- + a : array_like, with ``bytes_`` dtype + + encoding : str, optional + The name of an encoding + + errors : str, optional + Specifies how to handle encoding errors + + Returns + ------- + out : ndarray + + See Also + -------- + :py:meth:`bytes.decode` + + Notes + ----- + The type of the result will depend on the encoding specified. + + Examples + -------- + >>> import numpy as np + >>> c = np.array([b'\x81\xc1\x81\xc1\x81\xc1', b'@@\x81\xc1@@', + ... b'\x81\x82\xc2\xc1\xc2\x82\x81']) + >>> c + array([b'\x81\xc1\x81\xc1\x81\xc1', b'@@\x81\xc1@@', + b'\x81\x82\xc2\xc1\xc2\x82\x81'], dtype='|S7') + >>> np.strings.decode(c, encoding='cp037') + array(['aAaAaA', ' aA ', 'abBABba'], dtype='>> import numpy as np + >>> a = np.array(['aAaAaA', ' aA ', 'abBABba']) + >>> np.strings.encode(a, encoding='cp037') + array([b'\x81\xc1\x81\xc1\x81\xc1', b'@@\x81\xc1@@', + b'\x81\x82\xc2\xc1\xc2\x82\x81'], dtype='|S7') + + """ + return _to_bytes_or_str_array( + _vec_string(a, np.object_, 'encode', _clean_args(encoding, errors)), + np.bytes_(b'')) + + +def _expandtabs_dispatcher(a, tabsize=None): + return (a,) + + +@set_module("numpy.strings") +@array_function_dispatch(_expandtabs_dispatcher) +def expandtabs(a, tabsize=8): + """ + Return a copy of each string element where all tab characters are + replaced by one or more spaces. + + Calls :meth:`str.expandtabs` element-wise. + + Return a copy of each string element where all tab characters are + replaced by one or more spaces, depending on the current column + and the given `tabsize`. The column number is reset to zero after + each newline occurring in the string. This doesn't understand other + non-printing characters or escape sequences. + + Parameters + ---------- + a : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + Input array + tabsize : int, optional + Replace tabs with `tabsize` number of spaces. If not given defaults + to 8 spaces. + + Returns + ------- + out : ndarray + Output array of ``StringDType``, ``bytes_`` or ``str_`` dtype, + depending on input type + + See Also + -------- + str.expandtabs + + Examples + -------- + >>> import numpy as np + >>> a = np.array(['\t\tHello\tworld']) + >>> np.strings.expandtabs(a, tabsize=4) # doctest: +SKIP + array([' Hello world'], dtype='>> import numpy as np + >>> c = np.array(['a1b2','1b2a','b2a1','2a1b']); c + array(['a1b2', '1b2a', 'b2a1', '2a1b'], dtype='>> np.strings.center(c, width=9) + array([' a1b2 ', ' 1b2a ', ' b2a1 ', ' 2a1b '], dtype='>> np.strings.center(c, width=9, fillchar='*') + array(['***a1b2**', '***1b2a**', '***b2a1**', '***2a1b**'], dtype='>> np.strings.center(c, width=1) + array(['a1b2', '1b2a', 'b2a1', '2a1b'], dtype='>> import numpy as np + >>> c = np.array(['aAaAaA', ' aA ', 'abBABba']) + >>> np.strings.ljust(c, width=3) + array(['aAaAaA', ' aA ', 'abBABba'], dtype='>> np.strings.ljust(c, width=9) + array(['aAaAaA ', ' aA ', 'abBABba '], dtype='>> import numpy as np + >>> a = np.array(['aAaAaA', ' aA ', 'abBABba']) + >>> np.strings.rjust(a, width=3) + array(['aAaAaA', ' aA ', 'abBABba'], dtype='>> np.strings.rjust(a, width=9) + array([' aAaAaA', ' aA ', ' abBABba'], dtype='>> import numpy as np + >>> np.strings.zfill(['1', '-1', '+1'], 3) + array(['001', '-01', '+01'], dtype='>> import numpy as np + >>> c = np.array(['aAaAaA', ' aA ', 'abBABba']) + >>> c + array(['aAaAaA', ' aA ', 'abBABba'], dtype='>> np.strings.lstrip(c, 'a') + array(['AaAaA', ' aA ', 'bBABba'], dtype='>> np.strings.lstrip(c, 'A') # leaves c unchanged + array(['aAaAaA', ' aA ', 'abBABba'], dtype='>> (np.strings.lstrip(c, ' ') == np.strings.lstrip(c, '')).all() + np.False_ + >>> (np.strings.lstrip(c, ' ') == np.strings.lstrip(c)).all() + np.True_ + + """ + if chars is None: + return _lstrip_whitespace(a) + return _lstrip_chars(a, chars) + + +@set_module("numpy.strings") +def rstrip(a, chars=None): + """ + For each element in `a`, return a copy with the trailing characters + removed. + + Parameters + ---------- + a : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + chars : scalar with the same dtype as ``a``, optional + The ``chars`` argument is a string specifying the set of + characters to be removed. If ``None``, the ``chars`` + argument defaults to removing whitespace. The ``chars`` argument + is not a prefix or suffix; rather, all combinations of its + values are stripped. + + Returns + ------- + out : ndarray + Output array of ``StringDType``, ``bytes_`` or ``str_`` dtype, + depending on input types + + See Also + -------- + str.rstrip + + Examples + -------- + >>> import numpy as np + >>> c = np.array(['aAaAaA', 'abBABba']) + >>> c + array(['aAaAaA', 'abBABba'], dtype='>> np.strings.rstrip(c, 'a') + array(['aAaAaA', 'abBABb'], dtype='>> np.strings.rstrip(c, 'A') + array(['aAaAa', 'abBABba'], dtype='>> import numpy as np + >>> c = np.array(['aAaAaA', ' aA ', 'abBABba']) + >>> c + array(['aAaAaA', ' aA ', 'abBABba'], dtype='>> np.strings.strip(c) + array(['aAaAaA', 'aA', 'abBABba'], dtype='>> np.strings.strip(c, 'a') + array(['AaAaA', ' aA ', 'bBABb'], dtype='>> np.strings.strip(c, 'A') + array(['aAaAa', ' aA ', 'abBABba'], dtype='>> import numpy as np + >>> c = np.array(['a1b c', '1bca', 'bca1']); c + array(['a1b c', '1bca', 'bca1'], dtype='>> np.strings.upper(c) + array(['A1B C', '1BCA', 'BCA1'], dtype='>> import numpy as np + >>> c = np.array(['A1B C', '1BCA', 'BCA1']); c + array(['A1B C', '1BCA', 'BCA1'], dtype='>> np.strings.lower(c) + array(['a1b c', '1bca', 'bca1'], dtype='>> import numpy as np + >>> c=np.array(['a1B c','1b Ca','b Ca1','cA1b'],'S5'); c + array(['a1B c', '1b Ca', 'b Ca1', 'cA1b'], + dtype='|S5') + >>> np.strings.swapcase(c) + array(['A1b C', '1B cA', 'B cA1', 'Ca1B'], + dtype='|S5') + + """ + a_arr = np.asarray(a) + return _vec_string(a_arr, a_arr.dtype, 'swapcase') + + +@set_module("numpy.strings") +@array_function_dispatch(_unary_op_dispatcher) +def capitalize(a): + """ + Return a copy of ``a`` with only the first character of each element + capitalized. + + Calls :meth:`str.capitalize` element-wise. + + For byte strings, this method is locale-dependent. + + Parameters + ---------- + a : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + Input array of strings to capitalize. + + Returns + ------- + out : ndarray + Output array of ``StringDType``, ``bytes_`` or ``str_`` dtype, + depending on input types + + See Also + -------- + str.capitalize + + Examples + -------- + >>> import numpy as np + >>> c = np.array(['a1b2','1b2a','b2a1','2a1b'],'S4'); c + array(['a1b2', '1b2a', 'b2a1', '2a1b'], + dtype='|S4') + >>> np.strings.capitalize(c) + array(['A1b2', '1b2a', 'B2a1', '2a1b'], + dtype='|S4') + + """ + a_arr = np.asarray(a) + return _vec_string(a_arr, a_arr.dtype, 'capitalize') + + +@set_module("numpy.strings") +@array_function_dispatch(_unary_op_dispatcher) +def title(a): + """ + Return element-wise title cased version of string or unicode. + + Title case words start with uppercase characters, all remaining cased + characters are lowercase. + + Calls :meth:`str.title` element-wise. + + For 8-bit strings, this method is locale-dependent. + + Parameters + ---------- + a : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + Input array. + + Returns + ------- + out : ndarray + Output array of ``StringDType``, ``bytes_`` or ``str_`` dtype, + depending on input types + + See Also + -------- + str.title + + Examples + -------- + >>> import numpy as np + >>> c=np.array(['a1b c','1b ca','b ca1','ca1b'],'S5'); c + array(['a1b c', '1b ca', 'b ca1', 'ca1b'], + dtype='|S5') + >>> np.strings.title(c) + array(['A1B C', '1B Ca', 'B Ca1', 'Ca1B'], + dtype='|S5') + + """ + a_arr = np.asarray(a) + return _vec_string(a_arr, a_arr.dtype, 'title') + + +def _replace_dispatcher(a, old, new, count=None): + return (a,) + + +@set_module("numpy.strings") +@array_function_dispatch(_replace_dispatcher) +def replace(a, old, new, count=-1): + """ + For each element in ``a``, return a copy of the string with + occurrences of substring ``old`` replaced by ``new``. + + Parameters + ---------- + a : array_like, with ``bytes_`` or ``str_`` dtype + + old, new : array_like, with ``bytes_`` or ``str_`` dtype + + count : array_like, with ``int_`` dtype + If the optional argument ``count`` is given, only the first + ``count`` occurrences are replaced. + + Returns + ------- + out : ndarray + Output array of ``StringDType``, ``bytes_`` or ``str_`` dtype, + depending on input types + + See Also + -------- + str.replace + + Examples + -------- + >>> import numpy as np + >>> a = np.array(["That is a mango", "Monkeys eat mangos"]) + >>> np.strings.replace(a, 'mango', 'banana') + array(['That is a banana', 'Monkeys eat bananas'], dtype='>> a = np.array(["The dish is fresh", "This is it"]) + >>> np.strings.replace(a, 'is', 'was') + array(['The dwash was fresh', 'Thwas was it'], dtype='>> import numpy as np + >>> np.strings.join('-', 'osd') # doctest: +SKIP + array('o-s-d', dtype='>> np.strings.join(['-', '.'], ['ghc', 'osd']) # doctest: +SKIP + array(['g-h-c', 'o.s.d'], dtype='>> import numpy as np + >>> x = np.array("Numpy is nice!") + >>> np.strings.split(x, " ") # doctest: +SKIP + array(list(['Numpy', 'is', 'nice!']), dtype=object) # doctest: +SKIP + + >>> np.strings.split(x, " ", 1) # doctest: +SKIP + array(list(['Numpy', 'is nice!']), dtype=object) # doctest: +SKIP + + See Also + -------- + str.split, rsplit + + """ + # This will return an array of lists of different sizes, so we + # leave it as an object array + return _vec_string( + a, np.object_, 'split', [sep] + _clean_args(maxsplit)) + + +@array_function_dispatch(_split_dispatcher) +def _rsplit(a, sep=None, maxsplit=None): + """ + For each element in `a`, return a list of the words in the + string, using `sep` as the delimiter string. + + Calls :meth:`str.rsplit` element-wise. + + Except for splitting from the right, `rsplit` + behaves like `split`. + + Parameters + ---------- + a : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + + sep : str or unicode, optional + If `sep` is not specified or None, any whitespace string + is a separator. + maxsplit : int, optional + If `maxsplit` is given, at most `maxsplit` splits are done, + the rightmost ones. + + Returns + ------- + out : ndarray + Array of list objects + + See Also + -------- + str.rsplit, split + + Examples + -------- + >>> import numpy as np + >>> a = np.array(['aAaAaA', 'abBABba']) + >>> np.strings.rsplit(a, 'A') # doctest: +SKIP + array([list(['a', 'a', 'a', '']), # doctest: +SKIP + list(['abB', 'Bba'])], dtype=object) # doctest: +SKIP + + """ + # This will return an array of lists of different sizes, so we + # leave it as an object array + return _vec_string( + a, np.object_, 'rsplit', [sep] + _clean_args(maxsplit)) + + +def _splitlines_dispatcher(a, keepends=None): + return (a,) + + +@array_function_dispatch(_splitlines_dispatcher) +def _splitlines(a, keepends=None): + """ + For each element in `a`, return a list of the lines in the + element, breaking at line boundaries. + + Calls :meth:`str.splitlines` element-wise. + + Parameters + ---------- + a : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + + keepends : bool, optional + Line breaks are not included in the resulting list unless + keepends is given and true. + + Returns + ------- + out : ndarray + Array of list objects + + See Also + -------- + str.splitlines + + Examples + -------- + >>> np.char.splitlines("first line\\nsecond line") + array(list(['first line', 'second line']), dtype=object) + >>> a = np.array(["first\\nsecond", "third\\nfourth"]) + >>> np.char.splitlines(a) + array([list(['first', 'second']), list(['third', 'fourth'])], dtype=object) + + """ + return _vec_string( + a, np.object_, 'splitlines', _clean_args(keepends)) + + +def _partition_dispatcher(a, sep): + return (a,) + + +@set_module("numpy.strings") +@array_function_dispatch(_partition_dispatcher) +def partition(a, sep): + """ + Partition each element in ``a`` around ``sep``. + + For each element in ``a``, split the element at the first + occurrence of ``sep``, and return a 3-tuple containing the part + before the separator, the separator itself, and the part after + the separator. If the separator is not found, the first item of + the tuple will contain the whole string, and the second and third + ones will be the empty string. + + Parameters + ---------- + a : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + Input array + sep : array-like, with ``StringDType``, ``bytes_``, or ``str_`` dtype + Separator to split each string element in ``a``. + + Returns + ------- + out : 3-tuple: + - array with ``StringDType``, ``bytes_`` or ``str_`` dtype with the + part before the separator + - array with ``StringDType``, ``bytes_`` or ``str_`` dtype with the + separator + - array with ``StringDType``, ``bytes_`` or ``str_`` dtype with the + part after the separator + + See Also + -------- + str.partition + + Examples + -------- + >>> import numpy as np + >>> x = np.array(["Numpy is nice!"]) + >>> np.strings.partition(x, " ") + (array(['Numpy'], dtype='>> import numpy as np + >>> a = np.array(['aAaAaA', ' aA ', 'abBABba']) + >>> np.strings.rpartition(a, 'A') + (array(['aAaAa', ' a', 'abB'], dtype='>> import numpy as np + >>> a = np.array(['a1b c', '1bca', 'bca1']) + >>> table = a[0].maketrans('abc', '123') + >>> deletechars = ' ' + >>> np.char.translate(a, table, deletechars) + array(['112 3', '1231', '2311'], dtype='>> import numpy as np + >>> a = np.array(['hello', 'world']) + >>> np.strings.slice(a, 2) + array(['he', 'wo'], dtype='>> np.strings.slice(a, 2, None) + array(['llo', 'rld'], dtype='>> np.strings.slice(a, 1, 5, 2) + array(['el', 'ol'], dtype='>> np.strings.slice(a, np.array([1, 2]), np.array([4, 5])) + array(['ell', 'rld'], dtype='>> b = np.array(['hello world', 'γεια σου κόσμε', '你好世界', '👋 🌍'], + ... dtype=np.dtypes.StringDType()) + >>> np.strings.slice(b, -2) + array(['hello wor', 'γεια σου κόσ', '你好', '👋'], dtype=StringDType()) + + >>> np.strings.slice(b, -2, None) + array(['ld', 'με', '世界', ' 🌍'], dtype=StringDType()) + + >>> np.strings.slice(b, [3, -10, 2, -3], [-1, -2, -1, 3]) + array(['lo worl', ' σου κόσ', '世', '👋 🌍'], dtype=StringDType()) + + >>> np.strings.slice(b, None, None, -1) + array(['dlrow olleh', 'εμσόκ υοσ αιεγ', '界世好你', '🌍 👋'], + dtype=StringDType()) + + """ + # Just like in the construction of a regular slice object, if only start + # is specified then start will become stop, see logic in slice_new. + if stop is np._NoValue: + stop = start + start = None + + # adjust start, stop, step to be integers, see logic in PySlice_Unpack + if step is None: + step = 1 + step = np.asanyarray(step) + if not np.issubdtype(step.dtype, np.integer): + raise TypeError(f"unsupported type {step.dtype} for operand 'step'") + if np.any(step == 0): + raise ValueError("slice step cannot be zero") + + if start is None: + start = np.where(step < 0, np.iinfo(np.intp).max, 0) + + if stop is None: + stop = np.where(step < 0, np.iinfo(np.intp).min, np.iinfo(np.intp).max) + + return _slice(a, start, stop, step) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/strings.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/strings.pyi new file mode 100644 index 0000000000000000000000000000000000000000..270760412670a2a96c1a959f2ddcbb0675764be0 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/strings.pyi @@ -0,0 +1,536 @@ +from typing import TypeAlias, overload + +import numpy as np +from numpy._globals import _NoValueType +from numpy._typing import ( + NDArray, + _AnyShape, + _ArrayLikeAnyString_co as UST_co, + _ArrayLikeBytes_co as S_co, + _ArrayLikeInt_co as i_co, + _ArrayLikeStr_co as U_co, + _ArrayLikeString_co as T_co, + _SupportsArray, +) + +__all__ = [ + "add", + "capitalize", + "center", + "count", + "decode", + "encode", + "endswith", + "equal", + "expandtabs", + "find", + "greater", + "greater_equal", + "index", + "isalnum", + "isalpha", + "isdecimal", + "isdigit", + "islower", + "isnumeric", + "isspace", + "istitle", + "isupper", + "less", + "less_equal", + "ljust", + "lower", + "lstrip", + "mod", + "multiply", + "not_equal", + "partition", + "replace", + "rfind", + "rindex", + "rjust", + "rpartition", + "rstrip", + "startswith", + "str_len", + "strip", + "swapcase", + "title", + "translate", + "upper", + "zfill", + "slice", +] + +_StringDTypeArray: TypeAlias = np.ndarray[_AnyShape, np.dtypes.StringDType] +_StringDTypeSupportsArray: TypeAlias = _SupportsArray[np.dtypes.StringDType] +_StringDTypeOrUnicodeArray: TypeAlias = np.ndarray[_AnyShape, np.dtype[np.str_]] | _StringDTypeArray + +@overload +def equal(x1: U_co, x2: U_co) -> NDArray[np.bool]: ... +@overload +def equal(x1: S_co, x2: S_co) -> NDArray[np.bool]: ... +@overload +def equal(x1: T_co, x2: T_co) -> NDArray[np.bool]: ... + +@overload +def not_equal(x1: U_co, x2: U_co) -> NDArray[np.bool]: ... +@overload +def not_equal(x1: S_co, x2: S_co) -> NDArray[np.bool]: ... +@overload +def not_equal(x1: T_co, x2: T_co) -> NDArray[np.bool]: ... + +@overload +def greater_equal(x1: U_co, x2: U_co) -> NDArray[np.bool]: ... +@overload +def greater_equal(x1: S_co, x2: S_co) -> NDArray[np.bool]: ... +@overload +def greater_equal(x1: T_co, x2: T_co) -> NDArray[np.bool]: ... + +@overload +def less_equal(x1: U_co, x2: U_co) -> NDArray[np.bool]: ... +@overload +def less_equal(x1: S_co, x2: S_co) -> NDArray[np.bool]: ... +@overload +def less_equal(x1: T_co, x2: T_co) -> NDArray[np.bool]: ... + +@overload +def greater(x1: U_co, x2: U_co) -> NDArray[np.bool]: ... +@overload +def greater(x1: S_co, x2: S_co) -> NDArray[np.bool]: ... +@overload +def greater(x1: T_co, x2: T_co) -> NDArray[np.bool]: ... + +@overload +def less(x1: U_co, x2: U_co) -> NDArray[np.bool]: ... +@overload +def less(x1: S_co, x2: S_co) -> NDArray[np.bool]: ... +@overload +def less(x1: T_co, x2: T_co) -> NDArray[np.bool]: ... + +@overload +def add(x1: U_co, x2: U_co) -> NDArray[np.str_]: ... +@overload +def add(x1: S_co, x2: S_co) -> NDArray[np.bytes_]: ... +@overload +def add(x1: _StringDTypeSupportsArray, x2: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def add(x1: T_co, x2: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def multiply(a: U_co, i: i_co) -> NDArray[np.str_]: ... +@overload +def multiply(a: S_co, i: i_co) -> NDArray[np.bytes_]: ... +@overload +def multiply(a: _StringDTypeSupportsArray, i: i_co) -> _StringDTypeArray: ... +@overload +def multiply(a: T_co, i: i_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def mod(a: U_co, value: object) -> NDArray[np.str_]: ... +@overload +def mod(a: S_co, value: object) -> NDArray[np.bytes_]: ... +@overload +def mod(a: _StringDTypeSupportsArray, value: object) -> _StringDTypeArray: ... +@overload +def mod(a: T_co, value: object) -> _StringDTypeOrUnicodeArray: ... + +def isalpha(x: UST_co) -> NDArray[np.bool]: ... +def isalnum(a: UST_co) -> NDArray[np.bool]: ... +def isdigit(x: UST_co) -> NDArray[np.bool]: ... +def isspace(x: UST_co) -> NDArray[np.bool]: ... +def isdecimal(x: U_co | T_co) -> NDArray[np.bool]: ... +def isnumeric(x: U_co | T_co) -> NDArray[np.bool]: ... +def islower(a: UST_co) -> NDArray[np.bool]: ... +def istitle(a: UST_co) -> NDArray[np.bool]: ... +def isupper(a: UST_co) -> NDArray[np.bool]: ... + +def str_len(x: UST_co) -> NDArray[np.int_]: ... + +@overload +def find( + a: U_co, + sub: U_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... +@overload +def find( + a: S_co, + sub: S_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... +@overload +def find( + a: T_co, + sub: T_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... + +@overload +def rfind( + a: U_co, + sub: U_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... +@overload +def rfind( + a: S_co, + sub: S_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... +@overload +def rfind( + a: T_co, + sub: T_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... + +@overload +def index( + a: U_co, + sub: U_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... +@overload +def index( + a: S_co, + sub: S_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... +@overload +def index( + a: T_co, + sub: T_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... + +@overload +def rindex( + a: U_co, + sub: U_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... +@overload +def rindex( + a: S_co, + sub: S_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... +@overload +def rindex( + a: T_co, + sub: T_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... + +@overload +def count( + a: U_co, + sub: U_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... +@overload +def count( + a: S_co, + sub: S_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... +@overload +def count( + a: T_co, + sub: T_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.int_]: ... + +@overload +def startswith( + a: U_co, + prefix: U_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.bool]: ... +@overload +def startswith( + a: S_co, + prefix: S_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.bool]: ... +@overload +def startswith( + a: T_co, + prefix: T_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.bool]: ... + +@overload +def endswith( + a: U_co, + suffix: U_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.bool]: ... +@overload +def endswith( + a: S_co, + suffix: S_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.bool]: ... +@overload +def endswith( + a: T_co, + suffix: T_co, + start: i_co = 0, + end: i_co | None = None, +) -> NDArray[np.bool]: ... + +def decode( + a: S_co, + encoding: str | None = None, + errors: str | None = None, +) -> NDArray[np.str_]: ... +def encode( + a: U_co | T_co, + encoding: str | None = None, + errors: str | None = None, +) -> NDArray[np.bytes_]: ... + +@overload +def expandtabs(a: U_co, tabsize: i_co = 8) -> NDArray[np.str_]: ... +@overload +def expandtabs(a: S_co, tabsize: i_co = 8) -> NDArray[np.bytes_]: ... +@overload +def expandtabs(a: _StringDTypeSupportsArray, tabsize: i_co = 8) -> _StringDTypeArray: ... +@overload +def expandtabs(a: T_co, tabsize: i_co = 8) -> _StringDTypeOrUnicodeArray: ... + +@overload +def center(a: U_co, width: i_co, fillchar: UST_co = " ") -> NDArray[np.str_]: ... +@overload +def center(a: S_co, width: i_co, fillchar: UST_co = " ") -> NDArray[np.bytes_]: ... +@overload +def center(a: _StringDTypeSupportsArray, width: i_co, fillchar: UST_co = " ") -> _StringDTypeArray: ... +@overload +def center(a: T_co, width: i_co, fillchar: UST_co = " ") -> _StringDTypeOrUnicodeArray: ... + +@overload +def ljust(a: U_co, width: i_co, fillchar: UST_co = " ") -> NDArray[np.str_]: ... +@overload +def ljust(a: S_co, width: i_co, fillchar: UST_co = " ") -> NDArray[np.bytes_]: ... +@overload +def ljust(a: _StringDTypeSupportsArray, width: i_co, fillchar: UST_co = " ") -> _StringDTypeArray: ... +@overload +def ljust(a: T_co, width: i_co, fillchar: UST_co = " ") -> _StringDTypeOrUnicodeArray: ... + +@overload +def rjust(a: U_co, width: i_co, fillchar: UST_co = " ") -> NDArray[np.str_]: ... +@overload +def rjust(a: S_co, width: i_co, fillchar: UST_co = " ") -> NDArray[np.bytes_]: ... +@overload +def rjust(a: _StringDTypeSupportsArray, width: i_co, fillchar: UST_co = " ") -> _StringDTypeArray: ... +@overload +def rjust(a: T_co, width: i_co, fillchar: UST_co = " ") -> _StringDTypeOrUnicodeArray: ... + +@overload +def lstrip(a: U_co, chars: U_co | None = None) -> NDArray[np.str_]: ... +@overload +def lstrip(a: S_co, chars: S_co | None = None) -> NDArray[np.bytes_]: ... +@overload +def lstrip(a: _StringDTypeSupportsArray, chars: T_co | None = None) -> _StringDTypeArray: ... +@overload +def lstrip(a: T_co, chars: T_co | None = None) -> _StringDTypeOrUnicodeArray: ... + +@overload +def rstrip(a: U_co, chars: U_co | None = None) -> NDArray[np.str_]: ... +@overload +def rstrip(a: S_co, chars: S_co | None = None) -> NDArray[np.bytes_]: ... +@overload +def rstrip(a: _StringDTypeSupportsArray, chars: T_co | None = None) -> _StringDTypeArray: ... +@overload +def rstrip(a: T_co, chars: T_co | None = None) -> _StringDTypeOrUnicodeArray: ... + +@overload +def strip(a: U_co, chars: U_co | None = None) -> NDArray[np.str_]: ... +@overload +def strip(a: S_co, chars: S_co | None = None) -> NDArray[np.bytes_]: ... +@overload +def strip(a: _StringDTypeSupportsArray, chars: T_co | None = None) -> _StringDTypeArray: ... +@overload +def strip(a: T_co, chars: T_co | None = None) -> _StringDTypeOrUnicodeArray: ... + +@overload +def zfill(a: U_co, width: i_co) -> NDArray[np.str_]: ... +@overload +def zfill(a: S_co, width: i_co) -> NDArray[np.bytes_]: ... +@overload +def zfill(a: _StringDTypeSupportsArray, width: i_co) -> _StringDTypeArray: ... +@overload +def zfill(a: T_co, width: i_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def upper(a: U_co) -> NDArray[np.str_]: ... +@overload +def upper(a: S_co) -> NDArray[np.bytes_]: ... +@overload +def upper(a: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def upper(a: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def lower(a: U_co) -> NDArray[np.str_]: ... +@overload +def lower(a: S_co) -> NDArray[np.bytes_]: ... +@overload +def lower(a: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def lower(a: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def swapcase(a: U_co) -> NDArray[np.str_]: ... +@overload +def swapcase(a: S_co) -> NDArray[np.bytes_]: ... +@overload +def swapcase(a: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def swapcase(a: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def capitalize(a: U_co) -> NDArray[np.str_]: ... +@overload +def capitalize(a: S_co) -> NDArray[np.bytes_]: ... +@overload +def capitalize(a: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def capitalize(a: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def title(a: U_co) -> NDArray[np.str_]: ... +@overload +def title(a: S_co) -> NDArray[np.bytes_]: ... +@overload +def title(a: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def title(a: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def replace( + a: U_co, + old: U_co, + new: U_co, + count: i_co = -1, +) -> NDArray[np.str_]: ... +@overload +def replace( + a: S_co, + old: S_co, + new: S_co, + count: i_co = -1, +) -> NDArray[np.bytes_]: ... +@overload +def replace( + a: _StringDTypeSupportsArray, + old: _StringDTypeSupportsArray, + new: _StringDTypeSupportsArray, + count: i_co = -1, +) -> _StringDTypeArray: ... +@overload +def replace( + a: T_co, + old: T_co, + new: T_co, + count: i_co = -1, +) -> _StringDTypeOrUnicodeArray: ... + +@overload +def partition(a: U_co, sep: U_co) -> NDArray[np.str_]: ... +@overload +def partition(a: S_co, sep: S_co) -> NDArray[np.bytes_]: ... +@overload +def partition(a: _StringDTypeSupportsArray, sep: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def partition(a: T_co, sep: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def rpartition(a: U_co, sep: U_co) -> NDArray[np.str_]: ... +@overload +def rpartition(a: S_co, sep: S_co) -> NDArray[np.bytes_]: ... +@overload +def rpartition(a: _StringDTypeSupportsArray, sep: _StringDTypeSupportsArray) -> _StringDTypeArray: ... +@overload +def rpartition(a: T_co, sep: T_co) -> _StringDTypeOrUnicodeArray: ... + +@overload +def translate( + a: U_co, + table: str, + deletechars: str | None = None, +) -> NDArray[np.str_]: ... +@overload +def translate( + a: S_co, + table: str, + deletechars: str | None = None, +) -> NDArray[np.bytes_]: ... +@overload +def translate( + a: _StringDTypeSupportsArray, + table: str, + deletechars: str | None = None, +) -> _StringDTypeArray: ... +@overload +def translate( + a: T_co, + table: str, + deletechars: str | None = None, +) -> _StringDTypeOrUnicodeArray: ... + +# +@overload +def slice( + a: U_co, + start: i_co | None = None, + stop: i_co | _NoValueType | None = ..., # = np._NoValue + step: i_co | None = None, + /, +) -> NDArray[np.str_]: ... +@overload +def slice( + a: S_co, + start: i_co | None = None, + stop: i_co | _NoValueType | None = ..., # = np._NoValue + step: i_co | None = None, + /, +) -> NDArray[np.bytes_]: ... +@overload +def slice( + a: _StringDTypeSupportsArray, + start: i_co | None = None, + stop: i_co | _NoValueType | None = ..., # = np._NoValue + step: i_co | None = None, + /, +) -> _StringDTypeArray: ... +@overload +def slice( + a: T_co, + start: i_co | None = None, + stop: i_co | _NoValueType | None = ..., # = np._NoValue + step: i_co | None = None, + /, +) -> _StringDTypeOrUnicodeArray: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/.___pycache__ 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0000000000000000000000000000000000000000..debda9639c03c2b70312edb02ce8185de1681ffa --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/_locales.py @@ -0,0 +1,72 @@ +"""Provide class for testing in French locale + +""" +import locale +import sys + +import pytest + +__ALL__ = ['CommaDecimalPointLocale'] + + +def find_comma_decimal_point_locale(): + """See if platform has a decimal point as comma locale. + + Find a locale that uses a comma instead of a period as the + decimal point. + + Returns + ------- + old_locale: str + Locale when the function was called. + new_locale: {str, None) + First French locale found, None if none found. + + """ + if sys.platform == 'win32': + locales = ['FRENCH'] + else: + locales = ['fr_FR', 'fr_FR.UTF-8', 'fi_FI', 'fi_FI.UTF-8'] + + old_locale = locale.getlocale(locale.LC_NUMERIC) + new_locale = None + try: + for loc in locales: + try: + locale.setlocale(locale.LC_NUMERIC, loc) + new_locale = loc + break + except locale.Error: + pass + finally: + locale.setlocale(locale.LC_NUMERIC, locale=old_locale) + return old_locale, new_locale + + +class CommaDecimalPointLocale: + """Sets LC_NUMERIC to a locale with comma as decimal point. + + Classes derived from this class have setup and teardown methods that run + tests with locale.LC_NUMERIC set to a locale where commas (',') are used as + the decimal point instead of periods ('.'). On exit the locale is restored + to the initial locale. It also serves as context manager with the same + effect. If no such locale is available, the test is skipped. + + """ + (cur_locale, tst_locale) = find_comma_decimal_point_locale() + + def setup_method(self): + if self.tst_locale is None: + pytest.skip("No French locale available") + locale.setlocale(locale.LC_NUMERIC, locale=self.tst_locale) + + def teardown_method(self): + locale.setlocale(locale.LC_NUMERIC, locale=self.cur_locale) + + def __enter__(self): + if self.tst_locale is None: + pytest.skip("No French locale available") + locale.setlocale(locale.LC_NUMERIC, locale=self.tst_locale) + + def __exit__(self, type, value, traceback): + locale.setlocale(locale.LC_NUMERIC, locale=self.cur_locale) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/_natype.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/_natype.py new file mode 100644 index 0000000000000000000000000000000000000000..539dfd2b36e1090fbc564b12e442f24fe97020a2 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/_natype.py @@ -0,0 +1,144 @@ +# Vendored implementation of pandas.NA, adapted from pandas/_libs/missing.pyx +# +# This is vendored to avoid adding pandas as a test dependency. + +__all__ = ["pd_NA"] + +import numbers + +import numpy as np + + +def _create_binary_propagating_op(name, is_divmod=False): + is_cmp = name.strip("_") in ["eq", "ne", "le", "lt", "ge", "gt"] + + def method(self, other): + if ( + other is pd_NA + or isinstance(other, (str, bytes, numbers.Number, np.bool)) + or (isinstance(other, np.ndarray) and not other.shape) + ): + # Need the other.shape clause to handle NumPy scalars, + # since we do a setitem on `out` below, which + # won't work for NumPy scalars. + if is_divmod: + return pd_NA, pd_NA + else: + return pd_NA + + elif isinstance(other, np.ndarray): + out = np.empty(other.shape, dtype=object) + out[:] = pd_NA + + if is_divmod: + return out, out.copy() + else: + return out + + elif is_cmp and isinstance(other, (np.datetime64, np.timedelta64)): + return pd_NA + + elif isinstance(other, np.datetime64): + if name in ["__sub__", "__rsub__"]: + return pd_NA + + elif isinstance(other, np.timedelta64): + if name in ["__sub__", "__rsub__", "__add__", "__radd__"]: + return pd_NA + + return NotImplemented + + method.__name__ = name + return method + + +def _create_unary_propagating_op(name: str): + def method(self): + return pd_NA + + method.__name__ = name + return method + + +class NAType: + def __repr__(self) -> str: + return "" + + def __format__(self, format_spec) -> str: + try: + return self.__repr__().__format__(format_spec) + except ValueError: + return self.__repr__() + + def __bool__(self): + raise TypeError("boolean value of NA is ambiguous") + + def __hash__(self): + return 2**61 - 1 + + def __reduce__(self): + return "pd_NA" + + # Binary arithmetic and comparison ops -> propagate + + __add__ = _create_binary_propagating_op("__add__") + __radd__ = _create_binary_propagating_op("__radd__") + __sub__ = _create_binary_propagating_op("__sub__") + __rsub__ = _create_binary_propagating_op("__rsub__") + __mul__ = _create_binary_propagating_op("__mul__") + __rmul__ = _create_binary_propagating_op("__rmul__") + __matmul__ = _create_binary_propagating_op("__matmul__") + __rmatmul__ = _create_binary_propagating_op("__rmatmul__") + __truediv__ = _create_binary_propagating_op("__truediv__") + __rtruediv__ = _create_binary_propagating_op("__rtruediv__") + __floordiv__ = _create_binary_propagating_op("__floordiv__") + __rfloordiv__ = _create_binary_propagating_op("__rfloordiv__") + __mod__ = _create_binary_propagating_op("__mod__") + __rmod__ = _create_binary_propagating_op("__rmod__") + __divmod__ = _create_binary_propagating_op("__divmod__", is_divmod=True) + __rdivmod__ = _create_binary_propagating_op("__rdivmod__", is_divmod=True) + # __lshift__ and __rshift__ are not implemented + + __eq__ = _create_binary_propagating_op("__eq__") + __ne__ = _create_binary_propagating_op("__ne__") + __le__ = _create_binary_propagating_op("__le__") + __lt__ = _create_binary_propagating_op("__lt__") + __gt__ = _create_binary_propagating_op("__gt__") + __ge__ = _create_binary_propagating_op("__ge__") + + # Unary ops + + __neg__ = _create_unary_propagating_op("__neg__") + __pos__ = _create_unary_propagating_op("__pos__") + __abs__ = _create_unary_propagating_op("__abs__") + __invert__ = _create_unary_propagating_op("__invert__") + + # Logical ops using Kleene logic + + def __and__(self, other): + if other is False: + return False + elif other is True or other is pd_NA: + return pd_NA + return NotImplemented + + __rand__ = __and__ + + def __or__(self, other): + if other is True: + return True + elif other is False or other is pd_NA: + return pd_NA + return NotImplemented + + __ror__ = __or__ + + def __xor__(self, other): + if other is False or other is True or other is pd_NA: + return pd_NA + return NotImplemented + + __rxor__ = 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b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/generate_umath_validation_data.cpp @@ -0,0 +1,170 @@ +#include +#include +#include +#include +#include +#include +#include +#include + +struct ufunc { + std::string name; + double (*f32func)(double); + long double (*f64func)(long double); + float f32ulp; + float f64ulp; +}; + +template +T +RandomFloat(T a, T b) +{ + T random = ((T)rand()) / (T)RAND_MAX; + T diff = b - a; + T r = random * diff; + return a + r; +} + +template +void +append_random_array(std::vector &arr, T min, T max, size_t N) +{ + for (size_t ii = 0; ii < N; ++ii) + arr.emplace_back(RandomFloat(min, max)); +} + +template +std::vector +computeTrueVal(const std::vector &in, T2 (*mathfunc)(T2)) +{ + std::vector out; + for (T1 elem : in) { + T2 elem_d = (T2)elem; + T1 out_elem = (T1)mathfunc(elem_d); + out.emplace_back(out_elem); + } + return out; +} + +/* + * FP range: + * [-inf, -maxflt, -1., -minflt, -minden, 0., minden, minflt, 1., maxflt, inf] + */ + +#define MINDEN std::numeric_limits::denorm_min() +#define MINFLT std::numeric_limits::min() +#define MAXFLT std::numeric_limits::max() +#define INF std::numeric_limits::infinity() +#define qNAN std::numeric_limits::quiet_NaN() +#define sNAN std::numeric_limits::signaling_NaN() + +template +std::vector +generate_input_vector(std::string func) +{ + std::vector input = {MINDEN, -MINDEN, MINFLT, -MINFLT, MAXFLT, + -MAXFLT, INF, -INF, qNAN, sNAN, + -1.0, 1.0, 0.0, -0.0}; + + // [-1.0, 1.0] + if ((func == "arcsin") || (func == "arccos") || (func == "arctanh")) { + append_random_array(input, -1.0, 1.0, 700); + } + // (0.0, INF] + else if ((func == "log2") || (func == "log10")) { + append_random_array(input, 0.0, 1.0, 200); + append_random_array(input, MINDEN, MINFLT, 200); + append_random_array(input, MINFLT, 1.0, 200); + append_random_array(input, 1.0, MAXFLT, 200); + } + // (-1.0, INF] + else if (func == "log1p") { + append_random_array(input, -1.0, 1.0, 200); + append_random_array(input, -MINFLT, -MINDEN, 100); + append_random_array(input, -1.0, -MINFLT, 100); + append_random_array(input, MINDEN, MINFLT, 100); + append_random_array(input, MINFLT, 1.0, 100); + append_random_array(input, 1.0, MAXFLT, 100); + } + // [1.0, INF] + else if (func == "arccosh") { + append_random_array(input, 1.0, 2.0, 400); + append_random_array(input, 2.0, MAXFLT, 300); + } + // [-INF, INF] + else { + append_random_array(input, -1.0, 1.0, 100); + append_random_array(input, MINDEN, MINFLT, 100); + append_random_array(input, -MINFLT, -MINDEN, 100); + append_random_array(input, MINFLT, 1.0, 100); + append_random_array(input, -1.0, -MINFLT, 100); + append_random_array(input, 1.0, MAXFLT, 100); + append_random_array(input, -MAXFLT, -100.0, 100); + } + + std::random_shuffle(input.begin(), input.end()); + return input; +} + +int +main() +{ + srand(42); + std::vector umathfunc = { + {"sin", sin, sin, 1.49, 1.00}, + {"cos", cos, cos, 1.49, 1.00}, + {"tan", tan, tan, 3.91, 1.00}, + {"arcsin", asin, asin, 3.12, 1.00}, + {"arccos", acos, acos, 2.1, 1.00}, + {"arctan", atan, atan, 2.3, 1.00}, + {"sinh", sinh, sinh, 1.55, 1.00}, + {"cosh", cosh, cosh, 2.48, 1.00}, + {"tanh", tanh, tanh, 1.38, 2.00}, + {"arcsinh", asinh, asinh, 1.01, 1.00}, + {"arccosh", acosh, acosh, 1.16, 1.00}, + {"arctanh", atanh, atanh, 1.45, 1.00}, + {"cbrt", cbrt, cbrt, 1.94, 2.00}, + //{"exp",exp,exp,3.76,1.00}, + {"exp2", exp2, exp2, 1.01, 1.00}, + {"expm1", expm1, expm1, 2.62, 1.00}, + //{"log",log,log,1.84,1.00}, + {"log10", log10, log10, 3.5, 1.00}, + {"log1p", log1p, log1p, 1.96, 1.0}, + {"log2", log2, log2, 2.12, 1.00}, + }; + + for (int ii = 0; ii < umathfunc.size(); ++ii) { + // ignore sin/cos + if ((umathfunc[ii].name != "sin") && (umathfunc[ii].name != "cos")) { + std::string fileName = + "umath-validation-set-" + umathfunc[ii].name + ".csv"; + std::ofstream txtOut; + txtOut.open(fileName, std::ofstream::trunc); + txtOut << "dtype,input,output,ulperrortol" << std::endl; + + // Single Precision + auto f32in = generate_input_vector(umathfunc[ii].name); + auto f32out = computeTrueVal(f32in, + umathfunc[ii].f32func); + for (int jj = 0; jj < f32in.size(); ++jj) { + txtOut << "np.float32" << std::hex << ",0x" + << *reinterpret_cast(&f32in[jj]) << ",0x" + << *reinterpret_cast(&f32out[jj]) << "," + << ceil(umathfunc[ii].f32ulp) << std::endl; + } + + // Double Precision + auto f64in = generate_input_vector(umathfunc[ii].name); + auto f64out = computeTrueVal( + f64in, umathfunc[ii].f64func); + for (int jj = 0; jj < f64in.size(); ++jj) { + txtOut << "np.float64" << std::hex << ",0x" + << *reinterpret_cast(&f64in[jj]) << ",0x" + << *reinterpret_cast(&f64out[jj]) << "," + << ceil(umathfunc[ii].f64ulp) << std::endl; + } + txtOut.close(); + } + } + return 0; +} diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/recarray_from_file.fits b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/recarray_from_file.fits new file mode 100644 index 0000000000000000000000000000000000000000..ca48ee85153645a7510e201d574e9b119c089dce Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/recarray_from_file.fits differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-README.txt b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-README.txt new file mode 100644 index 0000000000000000000000000000000000000000..cfc9e4145d10276a4d296f3e189debeb581db780 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-README.txt @@ -0,0 +1,15 @@ +Steps to validate transcendental functions: +1) Add a file 'umath-validation-set-.txt', where ufuncname is name of + the function in NumPy you want to validate +2) The file should contain 4 columns: dtype,input,expected output,ulperror + a. dtype: one of np.float16, np.float32, np.float64 + b. input: floating point input to ufunc in hex. Example: 0x414570a4 + represents 12.340000152587890625 + c. expected output: floating point output for the corresponding input in hex. + This should be computed using a high(er) precision library and then rounded to + same format as the input. + d. ulperror: expected maximum ulp error of the function. This + should be same across all rows of the same dtype. Otherwise, the function is + tested for the maximum ulp error among all entries of that dtype. +3) Add file umath-validation-set-.txt to the test file test_umath_accuracy.py + which will then validate your ufunc. diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-arccos.csv b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-arccos.csv new file mode 100644 index 0000000000000000000000000000000000000000..82c8595cb4a617eb779c18b3e086d8ceb8d231e0 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-arccos.csv @@ -0,0 +1,1429 @@ +dtype,input,output,ulperrortol +np.float32,0xbddd7f50,0x3fd6eec2,3 +np.float32,0xbe32a20c,0x3fdf8182,3 +np.float32,0xbf607c09,0x4028f84f,3 +np.float32,0x3f25d906,0x3f5db544,3 +np.float32,0x3f01cec8,0x3f84febf,3 +np.float32,0x3f1d5c6e,0x3f68a735,3 +np.float32,0xbf0cab89,0x4009c36d,3 +np.float32,0xbf176b40,0x400d0941,3 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a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-cos.csv b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-cos.csv new file mode 100644 index 0000000000000000000000000000000000000000..258ae48ce0209f6873101426fce439c233078c89 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-cos.csv @@ -0,0 +1,1375 @@ +dtype,input,output,ulperrortol +## +ve denormals ## +np.float32,0x004b4716,0x3f800000,2 +np.float32,0x007b2490,0x3f800000,2 +np.float32,0x007c99fa,0x3f800000,2 +np.float32,0x00734a0c,0x3f800000,2 +np.float32,0x0070de24,0x3f800000,2 +np.float32,0x007fffff,0x3f800000,2 +np.float32,0x00000001,0x3f800000,2 +## -ve denormals ## +np.float32,0x80495d65,0x3f800000,2 +np.float32,0x806894f6,0x3f800000,2 +np.float32,0x80555a76,0x3f800000,2 +np.float32,0x804e1fb8,0x3f800000,2 +np.float32,0x80687de9,0x3f800000,2 +np.float32,0x807fffff,0x3f800000,2 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a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-exp.csv b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-exp.csv new file mode 100644 index 0000000000000000000000000000000000000000..7c5ef3b334fbd8a63bb1a0e6ad72577f767dbaf6 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-exp.csv @@ -0,0 +1,412 @@ +dtype,input,output,ulperrortol +## +ve denormals ## +np.float32,0x004b4716,0x3f800000,3 +np.float32,0x007b2490,0x3f800000,3 +np.float32,0x007c99fa,0x3f800000,3 +np.float32,0x00734a0c,0x3f800000,3 +np.float32,0x0070de24,0x3f800000,3 +np.float32,0x00495d65,0x3f800000,3 +np.float32,0x006894f6,0x3f800000,3 +np.float32,0x00555a76,0x3f800000,3 +np.float32,0x004e1fb8,0x3f800000,3 +np.float32,0x00687de9,0x3f800000,3 +## -ve denormals ## +np.float32,0x805b59af,0x3f800000,3 +np.float32,0x807ed8ed,0x3f800000,3 +np.float32,0x807142ad,0x3f800000,3 +np.float32,0x80772002,0x3f800000,3 +np.float32,0x8062abcb,0x3f800000,3 +np.float32,0x8045e31c,0x3f800000,3 +np.float32,0x805f01c2,0x3f800000,3 +np.float32,0x80506432,0x3f800000,3 +np.float32,0x8060089d,0x3f800000,3 +np.float32,0x8071292f,0x3f800000,3 +## floats that output a denormal ## +np.float32,0xc2cf3fc1,0x00000001,3 +np.float32,0xc2c79726,0x00000021,3 +np.float32,0xc2cb295d,0x00000005,3 +np.float32,0xc2b49e6b,0x00068c4c,3 +np.float32,0xc2ca8116,0x00000008,3 +np.float32,0xc2c23f82,0x000001d7,3 +np.float32,0xc2cb69c0,0x00000005,3 +np.float32,0xc2cc1f4d,0x00000003,3 +np.float32,0xc2ae094e,0x00affc4c,3 +np.float32,0xc2c86c44,0x00000015,3 +## random floats between -87.0f and 88.0f ## +np.float32,0x4030d7e0,0x417d9a05,3 +np.float32,0x426f60e8,0x6aa1be2c,3 +np.float32,0x41a1b220,0x4e0efc11,3 +np.float32,0xc20cc722,0x26159da7,3 +np.float32,0x41c492bc,0x512ec79d,3 +np.float32,0x40980210,0x42e73a0e,3 +np.float32,0xbf1f7b80,0x3f094de3,3 +np.float32,0x42a678a4,0x7b87a383,3 +np.float32,0xc20f3cfd,0x25a1c304,3 +np.float32,0x423ff34c,0x6216467f,3 +np.float32,0x00000000,0x3f800000,3 +## floats that cause an overflow ## +np.float32,0x7f06d8c1,0x7f800000,3 +np.float32,0x7f451912,0x7f800000,3 +np.float32,0x7ecceac3,0x7f800000,3 +np.float32,0x7f643b45,0x7f800000,3 +np.float32,0x7e910ea0,0x7f800000,3 +np.float32,0x7eb4756b,0x7f800000,3 +np.float32,0x7f4ec708,0x7f800000,3 +np.float32,0x7f6b4551,0x7f800000,3 +np.float32,0x7d8edbda,0x7f800000,3 +np.float32,0x7f730718,0x7f800000,3 +np.float32,0x42b17217,0x7f7fff84,3 +np.float32,0x42b17218,0x7f800000,3 +np.float32,0x42b17219,0x7f800000,3 +np.float32,0xfef2b0bc,0x00000000,3 +np.float32,0xff69f83e,0x00000000,3 +np.float32,0xff4ecb12,0x00000000,3 +np.float32,0xfeac6d86,0x00000000,3 +np.float32,0xfde0cdb8,0x00000000,3 +np.float32,0xff26aef4,0x00000000,3 +np.float32,0xff6f9277,0x00000000,3 +np.float32,0xff7adfc4,0x00000000,3 +np.float32,0xff0ad40e,0x00000000,3 +np.float32,0xff6fd8f3,0x00000000,3 +np.float32,0xc2cff1b4,0x00000001,3 +np.float32,0xc2cff1b5,0x00000000,3 +np.float32,0xc2cff1b6,0x00000000,3 +np.float32,0x7f800000,0x7f800000,3 +np.float32,0xff800000,0x00000000,3 +np.float32,0x4292f27c,0x7480000a,3 +np.float32,0x42a920be,0x7c7fff94,3 +np.float32,0x41c214c9,0x50ffffd9,3 +np.float32,0x41abe686,0x4effffd9,3 +np.float32,0x4287db5a,0x707fffd3,3 +np.float32,0x41902cbb,0x4c800078,3 +np.float32,0x42609466,0x67ffffeb,3 +np.float32,0x41a65af5,0x4e7fffd1,3 +np.float32,0x417f13ff,0x4affffc9,3 +np.float32,0x426d0e6c,0x6a3504f2,3 +np.float32,0x41bc8934,0x507fff51,3 +np.float32,0x42a7bdde,0x7c0000d6,3 +np.float32,0x4120cf66,0x46b504f6,3 +np.float32,0x4244da8f,0x62ffff1a,3 +np.float32,0x41a0cf69,0x4e000034,3 +np.float32,0x41cd2bec,0x52000005,3 +np.float32,0x42893e41,0x7100009e,3 +np.float32,0x41b437e1,0x4fb50502,3 +np.float32,0x41d8430f,0x5300001d,3 +np.float32,0x4244da92,0x62ffffda,3 +np.float32,0x41a0cf63,0x4dffffa9,3 +np.float32,0x3eb17218,0x3fb504f3,3 +np.float32,0x428729e8,0x703504dc,3 +np.float32,0x41a0cf67,0x4e000014,3 +np.float32,0x4252b77d,0x65800011,3 +np.float32,0x41902cb9,0x4c800058,3 +np.float32,0x42a0cf67,0x79800052,3 +np.float32,0x4152b77b,0x48ffffe9,3 +np.float32,0x41265af3,0x46ffffc8,3 +np.float32,0x42187e0b,0x5affff9a,3 +np.float32,0xc0d2b77c,0x3ab504f6,3 +np.float32,0xc283b2ac,0x10000072,3 +np.float32,0xc1cff1b4,0x2cb504f5,3 +np.float32,0xc05dce9e,0x3d000000,3 +np.float32,0xc28ec9d2,0x0bfffea5,3 +np.float32,0xc23c893a,0x1d7fffde,3 +np.float32,0xc2a920c0,0x027fff6c,3 +np.float32,0xc1f9886f,0x2900002b,3 +np.float32,0xc2c42920,0x000000b5,3 +np.float32,0xc2893e41,0x0dfffec5,3 +np.float32,0xc2c4da93,0x00000080,3 +np.float32,0xc17f1401,0x3400000c,3 +np.float32,0xc1902cb6,0x327fffaf,3 +np.float32,0xc27c4e3b,0x11ffffc5,3 +np.float32,0xc268e5c5,0x157ffe9d,3 +np.float32,0xc2b4e953,0x0005a826,3 +np.float32,0xc287db5a,0x0e800016,3 +np.float32,0xc207db5a,0x2700000b,3 +np.float32,0xc2b2d4fe,0x000ffff1,3 +np.float32,0xc268e5c0,0x157fffdd,3 +np.float32,0xc22920bd,0x2100003b,3 +np.float32,0xc2902caf,0x0b80011e,3 +np.float32,0xc1902cba,0x327fff2f,3 +np.float32,0xc2ca6625,0x00000008,3 +np.float32,0xc280ece8,0x10fffeb5,3 +np.float32,0xc2918f94,0x0b0000ea,3 +np.float32,0xc29b43d5,0x077ffffc,3 +np.float32,0xc1e61ff7,0x2ab504f5,3 +np.float32,0xc2867878,0x0effff15,3 +np.float32,0xc2a2324a,0x04fffff4,3 +#float64 +## near zero ## +np.float64,0x8000000000000000,0x3ff0000000000000,1 +np.float64,0x8010000000000000,0x3ff0000000000000,1 +np.float64,0x8000000000000001,0x3ff0000000000000,1 +np.float64,0x8360000000000000,0x3ff0000000000000,1 +np.float64,0x9a70000000000000,0x3ff0000000000000,1 +np.float64,0xb9b0000000000000,0x3ff0000000000000,1 +np.float64,0xb810000000000000,0x3ff0000000000000,1 +np.float64,0xbc30000000000000,0x3ff0000000000000,1 +np.float64,0xb6a0000000000000,0x3ff0000000000000,1 +np.float64,0x0000000000000000,0x3ff0000000000000,1 +np.float64,0x0010000000000000,0x3ff0000000000000,1 +np.float64,0x0000000000000001,0x3ff0000000000000,1 +np.float64,0x0360000000000000,0x3ff0000000000000,1 +np.float64,0x1a70000000000000,0x3ff0000000000000,1 +np.float64,0x3c30000000000000,0x3ff0000000000000,1 +np.float64,0x36a0000000000000,0x3ff0000000000000,1 +np.float64,0x39b0000000000000,0x3ff0000000000000,1 +np.float64,0x3810000000000000,0x3ff0000000000000,1 +## underflow ## +np.float64,0xc0c6276800000000,0x0000000000000000,1 +np.float64,0xc0c62d918ce2421d,0x0000000000000000,1 +np.float64,0xc0c62d918ce2421e,0x0000000000000000,1 +np.float64,0xc0c62d91a0000000,0x0000000000000000,1 +np.float64,0xc0c62d9180000000,0x0000000000000000,1 +np.float64,0xc0c62dea45ee3e06,0x0000000000000000,1 +np.float64,0xc0c62dea45ee3e07,0x0000000000000000,1 +np.float64,0xc0c62dea40000000,0x0000000000000000,1 +np.float64,0xc0c62dea60000000,0x0000000000000000,1 +np.float64,0xc0875f1120000000,0x0000000000000000,1 +np.float64,0xc0875f113c30b1c8,0x0000000000000000,1 +np.float64,0xc0875f1140000000,0x0000000000000000,1 +np.float64,0xc093480000000000,0x0000000000000000,1 +np.float64,0xffefffffffffffff,0x0000000000000000,1 +np.float64,0xc7efffffe0000000,0x0000000000000000,1 +## overflow ## +np.float64,0x40862e52fefa39ef,0x7ff0000000000000,1 +np.float64,0x40872e42fefa39ef,0x7ff0000000000000,1 +## +/- INF, +/- NAN ## +np.float64,0x7ff0000000000000,0x7ff0000000000000,1 +np.float64,0xfff0000000000000,0x0000000000000000,1 +np.float64,0x7ff8000000000000,0x7ff8000000000000,1 +np.float64,0xfff8000000000000,0xfff8000000000000,1 +## output denormal ## +np.float64,0xc087438520000000,0x0000000000000001,1 +np.float64,0xc08743853f2f4461,0x0000000000000001,1 +np.float64,0xc08743853f2f4460,0x0000000000000001,1 +np.float64,0xc087438540000000,0x0000000000000001,1 +## between -745.13321910 and 709.78271289 ## +np.float64,0xbff760cd14774bd9,0x3fcdb14ced00ceb6,1 +np.float64,0xbff760cd20000000,0x3fcdb14cd7993879,1 +np.float64,0xbff760cd00000000,0x3fcdb14d12fbd264,1 +np.float64,0xc07f1cf360000000,0x130c1b369af14fda,1 +np.float64,0xbeb0000000000000,0x3feffffe00001000,1 +np.float64,0xbd70000000000000,0x3fefffffffffe000,1 +np.float64,0xc084fd46e5c84952,0x0360000000000139,1 +np.float64,0xc084fd46e5c84953,0x035ffffffffffe71,1 +np.float64,0xc084fd46e0000000,0x0360000b9096d32c,1 +np.float64,0xc084fd4700000000,0x035fff9721d12104,1 +np.float64,0xc086232bc0000000,0x0010003af5e64635,1 +np.float64,0xc086232bdd7abcd2,0x001000000000007c,1 +np.float64,0xc086232bdd7abcd3,0x000ffffffffffe7c,1 +np.float64,0xc086232be0000000,0x000ffffaf57a6fc9,1 +np.float64,0xc086233920000000,0x000fe590e3b45eb0,1 +np.float64,0xc086233938000000,0x000fe56133493c57,1 +np.float64,0xc086233940000000,0x000fe5514deffbbc,1 +np.float64,0xc086234c98000000,0x000fbf1024c32ccb,1 +np.float64,0xc086234ca0000000,0x000fbf0065bae78d,1 +np.float64,0xc086234c80000000,0x000fbf3f623a7724,1 +np.float64,0xc086234ec0000000,0x000fbad237c846f9,1 +np.float64,0xc086234ec8000000,0x000fbac27cfdec97,1 +np.float64,0xc086234ee0000000,0x000fba934cfd3dc2,1 +np.float64,0xc086234ef0000000,0x000fba73d7f618d9,1 +np.float64,0xc086234f00000000,0x000fba54632dddc0,1 +np.float64,0xc0862356e0000000,0x000faae0945b761a,1 +np.float64,0xc0862356f0000000,0x000faac13eb9a310,1 +np.float64,0xc086235700000000,0x000faaa1e9567b0a,1 +np.float64,0xc086236020000000,0x000f98cd75c11ed7,1 +np.float64,0xc086236ca0000000,0x000f8081b4d93f89,1 +np.float64,0xc086236cb0000000,0x000f8062b3f4d6c5,1 +np.float64,0xc086236cc0000000,0x000f8043b34e6f8c,1 +np.float64,0xc086238d98000000,0x000f41220d9b0d2c,1 +np.float64,0xc086238da0000000,0x000f4112cc80a01f,1 +np.float64,0xc086238d80000000,0x000f414fd145db5b,1 +np.float64,0xc08624fd00000000,0x000cbfce8ea1e6c4,1 +np.float64,0xc086256080000000,0x000c250747fcd46e,1 +np.float64,0xc08626c480000000,0x000a34f4bd975193,1 +np.float64,0xbf50000000000000,0x3feff800ffeaac00,1 +np.float64,0xbe10000000000000,0x3fefffffff800000,1 +np.float64,0xbcd0000000000000,0x3feffffffffffff8,1 +np.float64,0xc055d589e0000000,0x38100004bf94f63e,1 +np.float64,0xc055d58a00000000,0x380ffff97f292ce8,1 +np.float64,0xbfd962d900000000,0x3fe585a4b00110e1,1 +np.float64,0x3ff4bed280000000,0x400d411e7a58a303,1 +np.float64,0x3fff0b3620000000,0x401bd7737ffffcf3,1 +np.float64,0x3ff0000000000000,0x4005bf0a8b145769,1 +np.float64,0x3eb0000000000000,0x3ff0000100000800,1 +np.float64,0x3d70000000000000,0x3ff0000000001000,1 +np.float64,0x40862e42e0000000,0x7fefff841808287f,1 +np.float64,0x40862e42fefa39ef,0x7fefffffffffff2a,1 +np.float64,0x40862e0000000000,0x7feef85a11e73f2d,1 +np.float64,0x4000000000000000,0x401d8e64b8d4ddae,1 +np.float64,0x4009242920000000,0x40372a52c383a488,1 +np.float64,0x4049000000000000,0x44719103e4080b45,1 +np.float64,0x4008000000000000,0x403415e5bf6fb106,1 +np.float64,0x3f50000000000000,0x3ff00400800aab55,1 +np.float64,0x3e10000000000000,0x3ff0000000400000,1 +np.float64,0x3cd0000000000000,0x3ff0000000000004,1 +np.float64,0x40562e40a0000000,0x47effed088821c3f,1 +np.float64,0x40562e42e0000000,0x47effff082e6c7ff,1 +np.float64,0x40562e4300000000,0x47f00000417184b8,1 +np.float64,0x3fe8000000000000,0x4000ef9db467dcf8,1 +np.float64,0x402b12e8d4f33589,0x412718f68c71a6fe,1 +np.float64,0x402b12e8d4f3358a,0x412718f68c71a70a,1 +np.float64,0x402b12e8c0000000,0x412718f59a7f472e,1 +np.float64,0x402b12e8e0000000,0x412718f70c0eac62,1 +##use 1th entry +np.float64,0x40631659AE147CB4,0x4db3a95025a4890f,1 +np.float64,0xC061B87D2E85A4E2,0x332640c8e2de2c51,1 +np.float64,0x405A4A50BE243AF4,0x496a45e4b7f0339a,1 +np.float64,0xC0839898B98EC5C6,0x0764027828830df4,1 +#use 2th entry +np.float64,0xC072428C44B6537C,0x2596ade838b96f3e,1 +np.float64,0xC053057C5E1AE9BF,0x3912c8fad18fdadf,1 +np.float64,0x407E89C78328BAA3,0x6bfe35d5b9a1a194,1 +np.float64,0x4083501B6DD87112,0x77a855503a38924e,1 +#use 3th entry +np.float64,0x40832C6195F24540,0x7741e73c80e5eb2f,1 +np.float64,0xC083D4CD557C2EC9,0x06b61727c2d2508e,1 +np.float64,0x400C48F5F67C99BD,0x404128820f02b92e,1 +np.float64,0x4056E36D9B2DF26A,0x4830f52ff34a8242,1 +#use 4th entry +np.float64,0x4080FF700D8CBD06,0x70fa70df9bc30f20,1 +np.float64,0x406C276D39E53328,0x543eb8e20a8f4741,1 +np.float64,0xC070D6159BBD8716,0x27a4a0548c904a75,1 +np.float64,0xC052EBCF8ED61F83,0x391c0e92368d15e4,1 +#use 5th entry +np.float64,0xC061F892A8AC5FBE,0x32f807a89efd3869,1 +np.float64,0x4021D885D2DBA085,0x40bd4dc86d3e3270,1 +np.float64,0x40767AEEEE7D4FCF,0x605e22851ee2afb7,1 +np.float64,0xC0757C5D75D08C80,0x20f0751599b992a2,1 +#use 6th entry +np.float64,0x405ACF7A284C4CE3,0x499a4e0b7a27027c,1 +np.float64,0xC085A6C9E80D7AF5,0x0175914009d62ec2,1 +np.float64,0xC07E4C02F86F1DAE,0x1439269b29a9231e,1 +np.float64,0x4080D80F9691CC87,0x7088a6cdafb041de,1 +#use 7th entry +np.float64,0x407FDFD84FBA0AC1,0x6deb1ae6f9bc4767,1 +np.float64,0x40630C06A1A2213D,0x4dac7a9d51a838b7,1 +np.float64,0x40685FDB30BB8B4F,0x5183f5cc2cac9e79,1 +np.float64,0x408045A2208F77F4,0x6ee299e08e2aa2f0,1 +#use 8th entry +np.float64,0xC08104E391F5078B,0x0ed397b7cbfbd230,1 +np.float64,0xC031501CAEFAE395,0x3e6040fd1ea35085,1 +np.float64,0xC079229124F6247C,0x1babf4f923306b1e,1 +np.float64,0x407FB65F44600435,0x6db03beaf2512b8a,1 +#use 9th entry +np.float64,0xC07EDEE8E8E8A5AC,0x136536cec9cbef48,1 +np.float64,0x4072BB4086099A14,0x5af4d3c3008b56cc,1 +np.float64,0x4050442A2EC42CB4,0x45cd393bd8fad357,1 +np.float64,0xC06AC28FB3D419B4,0x2ca1b9d3437df85f,1 +#use 10th entry +np.float64,0x40567FC6F0A68076,0x480c977fd5f3122e,1 +np.float64,0x40620A2F7EDA59BB,0x4cf278e96f4ce4d7,1 +np.float64,0xC085044707CD557C,0x034aad6c968a045a,1 +np.float64,0xC07374EA5AC516AA,0x23dd6afdc03e83d5,1 +#use 11th entry +np.float64,0x4073CC95332619C1,0x5c804b1498bbaa54,1 +np.float64,0xC0799FEBBE257F31,0x1af6a954c43b87d2,1 +np.float64,0x408159F19EA424F6,0x7200858efcbfc84d,1 +np.float64,0x404A81F6F24C0792,0x44b664a07ce5bbfa,1 +#use 12th entry +np.float64,0x40295FF1EFB9A741,0x4113c0e74c52d7b0,1 +np.float64,0x4073975F4CC411DA,0x5c32be40b4fec2c1,1 +np.float64,0x406E9DE52E82A77E,0x56049c9a3f1ae089,1 +np.float64,0x40748C2F52560ED9,0x5d93bc14fd4cd23b,1 +#use 13th entry +np.float64,0x4062A553CDC4D04C,0x4d6266bfde301318,1 +np.float64,0xC079EC1D63598AB7,0x1a88cb184dab224c,1 +np.float64,0xC0725C1CB3167427,0x25725b46f8a081f6,1 +np.float64,0x407888771D9B45F9,0x6353b1ec6bd7ce80,1 +#use 14th entry +np.float64,0xC082CBA03AA89807,0x09b383723831ce56,1 +np.float64,0xC083A8961BB67DD7,0x0735b118d5275552,1 +np.float64,0xC076BC6ECA12E7E3,0x1f2222679eaef615,1 +np.float64,0xC072752503AA1A5B,0x254eb832242c77e1,1 +#use 15th entry +np.float64,0xC058800792125DEC,0x371882372a0b48d4,1 +np.float64,0x4082909FD863E81C,0x7580d5f386920142,1 +np.float64,0xC071616F8FB534F9,0x26dbe20ef64a412b,1 +np.float64,0x406D1AB571CAA747,0x54ee0d55cb38ac20,1 +#use 16th entry +np.float64,0x406956428B7DAD09,0x52358682c271237f,1 +np.float64,0xC07EFC2D9D17B621,0x133b3e77c27a4d45,1 +np.float64,0xC08469BAC5BA3CCA,0x050863e5f42cc52f,1 +np.float64,0x407189D9626386A5,0x593cb1c0b3b5c1d3,1 +#use 17th entry +np.float64,0x4077E652E3DEB8C6,0x6269a10dcbd3c752,1 +np.float64,0x407674C97DB06878,0x605485dcc2426ec2,1 +np.float64,0xC07CE9969CF4268D,0x16386cf8996669f2,1 +np.float64,0x40780EE32D5847C4,0x62a436bd1abe108d,1 +#use 18th entry +np.float64,0x4076C3AA5E1E8DA1,0x60c62f56a5e72e24,1 +np.float64,0xC0730AFC7239B9BE,0x24758ead095cec1e,1 +np.float64,0xC085CC2B9C420DDB,0x0109cdaa2e5694c1,1 +np.float64,0x406D0765CB6D7AA4,0x54e06f8dd91bd945,1 +#use 19th entry +np.float64,0xC082D011F3B495E7,0x09a6647661d279c2,1 +np.float64,0xC072826AF8F6AFBC,0x253acd3cd224507e,1 +np.float64,0x404EB9C4810CEA09,0x457933dbf07e8133,1 +np.float64,0x408284FBC97C58CE,0x755f6eb234aa4b98,1 +#use 20th entry +np.float64,0x40856008CF6EDC63,0x7d9c0b3c03f4f73c,1 +np.float64,0xC077CB2E9F013B17,0x1d9b3d3a166a55db,1 +np.float64,0xC0479CA3C20AD057,0x3bad40e081555b99,1 +np.float64,0x40844CD31107332A,0x7a821d70aea478e2,1 +#use 21th entry +np.float64,0xC07C8FCC0BFCC844,0x16ba1cc8c539d19b,1 +np.float64,0xC085C4E9A3ABA488,0x011ff675ba1a2217,1 +np.float64,0x4074D538B32966E5,0x5dfd9d78043c6ad9,1 +np.float64,0xC0630CA16902AD46,0x3231a446074cede6,1 +#use 22th entry +np.float64,0xC06C826733D7D0B7,0x2b5f1078314d41e1,1 +np.float64,0xC0520DF55B2B907F,0x396c13a6ce8e833e,1 +np.float64,0xC080712072B0F437,0x107eae02d11d98ea,1 +np.float64,0x40528A6150E19EFB,0x469fdabda02228c5,1 +#use 23th entry +np.float64,0xC07B1D74B6586451,0x18d1253883ae3b48,1 +np.float64,0x4045AFD7867DAEC0,0x43d7d634fc4c5d98,1 +np.float64,0xC07A08B91F9ED3E2,0x1a60973e6397fc37,1 +np.float64,0x407B3ECF0AE21C8C,0x673e03e9d98d7235,1 +#use 24th entry +np.float64,0xC078AEB6F30CEABF,0x1c530b93ab54a1b3,1 +np.float64,0x4084495006A41672,0x7a775b6dc7e63064,1 +np.float64,0x40830B1C0EBF95DD,0x76e1e6eed77cfb89,1 +np.float64,0x407D93E8F33D8470,0x6a9adbc9e1e4f1e5,1 +#use 25th entry +np.float64,0x4066B11A09EFD9E8,0x504dd528065c28a7,1 +np.float64,0x408545823723AEEB,0x7d504a9b1844f594,1 +np.float64,0xC068C711F2CA3362,0x2e104f3496ea118e,1 +np.float64,0x407F317FCC3CA873,0x6cf0732c9948ebf4,1 +#use 26th entry +np.float64,0x407AFB3EBA2ED50F,0x66dc28a129c868d5,1 +np.float64,0xC075377037708ADE,0x21531a329f3d793e,1 +np.float64,0xC07C30066A1F3246,0x174448baa16ded2b,1 +np.float64,0xC06689A75DE2ABD3,0x2fad70662fae230b,1 +#use 27th entry +np.float64,0x4081514E9FCCF1E0,0x71e673b9efd15f44,1 +np.float64,0xC0762C710AF68460,0x1ff1ed7d8947fe43,1 +np.float64,0xC0468102FF70D9C4,0x3be0c3a8ff3419a3,1 +np.float64,0xC07EA4CEEF02A83E,0x13b908f085102c61,1 +#use 28th entry +np.float64,0xC06290B04AE823C4,0x328a83da3c2e3351,1 +np.float64,0xC0770EB1D1C395FB,0x1eab281c1f1db5fe,1 +np.float64,0xC06F5D4D838A5BAE,0x29500ea32fb474ea,1 +np.float64,0x40723B3133B54C5D,0x5a3c82c7c3a2b848,1 +#use 29th entry +np.float64,0x4085E6454CE3B4AA,0x7f20319b9638d06a,1 +np.float64,0x408389F2A0585D4B,0x7850667c58aab3d0,1 +np.float64,0xC0382798F9C8AE69,0x3dc1c79fe8739d6d,1 +np.float64,0xC08299D827608418,0x0a4335f76cdbaeb5,1 +#use 30th entry +np.float64,0xC06F3DED43301BF1,0x2965670ae46750a8,1 +np.float64,0xC070CAF6BDD577D9,0x27b4aa4ffdd29981,1 +np.float64,0x4078529AD4B2D9F2,0x6305c12755d5e0a6,1 +np.float64,0xC055B14E75A31B96,0x381c2eda6d111e5d,1 +#use 31th entry +np.float64,0x407B13EE414FA931,0x6700772c7544564d,1 +np.float64,0x407EAFDE9DE3EC54,0x6c346a0e49724a3c,1 +np.float64,0xC08362F398B9530D,0x07ffeddbadf980cb,1 +np.float64,0x407E865CDD9EEB86,0x6bf866cac5e0d126,1 +#use 32th entry +np.float64,0x407FB62DBC794C86,0x6db009f708ac62cb,1 +np.float64,0xC063D0BAA68CDDDE,0x31a3b2a51ce50430,1 +np.float64,0xC05E7706A2231394,0x34f24bead6fab5c9,1 +np.float64,0x4083E3A06FDE444E,0x79527b7a386d1937,1 diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-exp2.csv b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-exp2.csv new file mode 100644 index 0000000000000000000000000000000000000000..4e0a63e8e2c5061d6a158f9347a6085e5e8c4ffa --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-exp2.csv @@ -0,0 +1,1429 @@ +dtype,input,output,ulperrortol +np.float32,0xbdfe94b0,0x3f6adda6,2 +np.float32,0x3f20f8f8,0x3fc5ec69,2 +np.float32,0x7040b5,0x3f800000,2 +np.float32,0x30ec5,0x3f800000,2 +np.float32,0x3eb63070,0x3fa3ce29,2 +np.float32,0xff4dda3d,0x0,2 +np.float32,0x805b832f,0x3f800000,2 +np.float32,0x3e883fb7,0x3f99ed8c,2 +np.float32,0x3f14d71f,0x3fbf8708,2 +np.float32,0xff7b1e55,0x0,2 +np.float32,0xbf691ac6,0x3f082fa2,2 +np.float32,0x7ee3e6ab,0x7f800000,2 +np.float32,0xbec6e2b4,0x3f439248,2 +np.float32,0xbf5f5ec2,0x3f0bd2c0,2 +np.float32,0x8025cc2c,0x3f800000,2 +np.float32,0x7e0d7672,0x7f800000,2 +np.float32,0xff4bbc5c,0x0,2 +np.float32,0xbd94fb30,0x3f73696b,2 +np.float32,0x6cc079,0x3f800000,2 +np.float32,0x803cf080,0x3f800000,2 +np.float32,0x71d418,0x3f800000,2 +np.float32,0xbf24a442,0x3f23ec1e,2 +np.float32,0xbe6c9510,0x3f5a1e1d,2 +np.float32,0xbe8fb284,0x3f52be38,2 +np.float32,0x7ea64754,0x7f800000,2 +np.float32,0x7fc00000,0x7fc00000,2 +np.float32,0x80620cfd,0x3f800000,2 +np.float32,0x3f3e20e8,0x3fd62e72,2 +np.float32,0x3f384600,0x3fd2d00e,2 +np.float32,0xff362150,0x0,2 +np.float32,0xbf349fa8,0x3f1cfaef,2 +np.float32,0xbf776cf2,0x3f0301a6,2 +np.float32,0x8021fc60,0x3f800000,2 +np.float32,0xbdb75280,0x3f70995c,2 +np.float32,0x7e9363a6,0x7f800000,2 +np.float32,0x7e728422,0x7f800000,2 +np.float32,0xfe91edc2,0x0,2 +np.float32,0x3f5f438c,0x3fea491d,2 +np.float32,0x3f2afae9,0x3fcb5c1f,2 +np.float32,0xbef8e766,0x3f36c448,2 +np.float32,0xba522c00,0x3f7fdb97,2 +np.float32,0xff18ee8c,0x0,2 +np.float32,0xbee8c5f4,0x3f3acd44,2 +np.float32,0x3e790448,0x3f97802c,2 +np.float32,0x3e8c9541,0x3f9ad571,2 +np.float32,0xbf03fa9f,0x3f331460,2 +np.float32,0x801ee053,0x3f800000,2 +np.float32,0xbf773230,0x3f03167f,2 +np.float32,0x356fd9,0x3f800000,2 +np.float32,0x8009cd88,0x3f800000,2 +np.float32,0x7f2bac51,0x7f800000,2 +np.float32,0x4d9eeb,0x3f800000,2 +np.float32,0x3133,0x3f800000,2 +np.float32,0x7f4290e0,0x7f800000,2 +np.float32,0xbf5e6523,0x3f0c3161,2 +np.float32,0x3f19182e,0x3fc1bf10,2 +np.float32,0x7e1248bb,0x7f800000,2 +np.float32,0xff5f7aae,0x0,2 +np.float32,0x7e8557b5,0x7f800000,2 +np.float32,0x26fc7f,0x3f800000,2 +np.float32,0x80397d61,0x3f800000,2 +np.float32,0x3cb1825d,0x3f81efe0,2 +np.float32,0x3ed808d0,0x3fab7c45,2 +np.float32,0xbf6f668a,0x3f05e259,2 +np.float32,0x3e3c7802,0x3f916abd,2 +np.float32,0xbd5ac5a0,0x3f76b21b,2 +np.float32,0x805aa6c9,0x3f800000,2 +np.float32,0xbe4d6f68,0x3f5ec3e1,2 +np.float32,0x3f3108b2,0x3fceb87f,2 +np.float32,0x3ec385cc,0x3fa6c9fb,2 +np.float32,0xbe9fc1ce,0x3f4e35e8,2 +np.float32,0x43b68,0x3f800000,2 +np.float32,0x3ef0cdcc,0x3fb15557,2 +np.float32,0x3e3f729b,0x3f91b5e1,2 +np.float32,0x7f52a4df,0x7f800000,2 +np.float32,0xbf56da96,0x3f0f15b9,2 +np.float32,0xbf161d2b,0x3f2a7faf,2 +np.float32,0x3e8df763,0x3f9b1fbe,2 +np.float32,0xff4f0780,0x0,2 +np.float32,0x8048f594,0x3f800000,2 +np.float32,0x3e62bb1d,0x3f953b7e,2 +np.float32,0xfe58e764,0x0,2 +np.float32,0x3dd2c922,0x3f897718,2 +np.float32,0x7fa00000,0x7fe00000,2 +np.float32,0xff07b4b2,0x0,2 +np.float32,0x7f6231a0,0x7f800000,2 +np.float32,0xb8d1d,0x3f800000,2 +np.float32,0x3ee01d24,0x3fad5f16,2 +np.float32,0xbf43f59f,0x3f169869,2 +np.float32,0x801f5257,0x3f800000,2 +np.float32,0x803c15d8,0x3f800000,2 +np.float32,0x3f171a08,0x3fc0b42a,2 +np.float32,0x127aef,0x3f800000,2 +np.float32,0xfd1c6,0x3f800000,2 +np.float32,0x3f1ed13e,0x3fc4c59a,2 +np.float32,0x57fd4f,0x3f800000,2 +np.float32,0x6e8c61,0x3f800000,2 +np.float32,0x804019ab,0x3f800000,2 +np.float32,0x3ef4e5c6,0x3fb251a1,2 +np.float32,0x5044c3,0x3f800000,2 +np.float32,0x3f04460f,0x3fb7204b,2 +np.float32,0x7e326b47,0x7f800000,2 +np.float32,0x800a7e4c,0x3f800000,2 +np.float32,0xbf47ec82,0x3f14fccc,2 +np.float32,0xbedb1b3e,0x3f3e4a4d,2 +np.float32,0x3f741d86,0x3ff7e4b0,2 +np.float32,0xbe249d20,0x3f6501a6,2 +np.float32,0xbf2ea152,0x3f1f8c68,2 +np.float32,0x3ec6dbcc,0x3fa78b3f,2 +np.float32,0x7ebd9bb4,0x7f800000,2 +np.float32,0x3f61b574,0x3febd77a,2 +np.float32,0x3f3dfb2b,0x3fd61891,2 +np.float32,0x3c7d95,0x3f800000,2 +np.float32,0x8071e840,0x3f800000,2 +np.float32,0x15c6fe,0x3f800000,2 +np.float32,0xbf096601,0x3f307893,2 +np.float32,0x7f5c2ef9,0x7f800000,2 +np.float32,0xbe79f750,0x3f582689,2 +np.float32,0x1eb692,0x3f800000,2 +np.float32,0xbd8024f0,0x3f75226d,2 +np.float32,0xbf5a8be8,0x3f0da950,2 +np.float32,0xbf4d28f3,0x3f12e3e1,2 +np.float32,0x7f800000,0x7f800000,2 +np.float32,0xfea8a758,0x0,2 +np.float32,0x8075d2cf,0x3f800000,2 +np.float32,0xfd99af58,0x0,2 +np.float32,0x9e6a,0x3f800000,2 +np.float32,0x2fa19f,0x3f800000,2 +np.float32,0x3e9f4206,0x3f9ecc56,2 +np.float32,0xbee0b666,0x3f3cd9fc,2 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+np.float64,0xffdbe2bf9ab7c580,0xbff0000000000000,1 +np.float64,0xbfe6a274daed44ea,0xbfe039aff2be9d48,1 +np.float64,0x7fd5a4e4efab49c9,0x7ff0000000000000,1 +np.float64,0xffbe6aaeb03cd560,0xbff0000000000000,1 diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-log.csv b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-log.csv new file mode 100644 index 0000000000000000000000000000000000000000..b8f6b08757d5bddbec06328ac2c3f6b694d85fd3 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/data/umath-validation-set-log.csv @@ -0,0 +1,271 @@ +dtype,input,output,ulperrortol +## +ve denormals ## +np.float32,0x004b4716,0xc2afbc1b,4 +np.float32,0x007b2490,0xc2aec01e,4 +np.float32,0x007c99fa,0xc2aeba17,4 +np.float32,0x00734a0c,0xc2aee1dc,4 +np.float32,0x0070de24,0xc2aeecba,4 +np.float32,0x007fffff,0xc2aeac50,4 +np.float32,0x00000001,0xc2ce8ed0,4 +## -ve denormals ## +np.float32,0x80495d65,0xffc00000,4 +np.float32,0x806894f6,0xffc00000,4 +np.float32,0x80555a76,0xffc00000,4 +np.float32,0x804e1fb8,0xffc00000,4 +np.float32,0x80687de9,0xffc00000,4 +np.float32,0x807fffff,0xffc00000,4 +np.float32,0x80000001,0xffc00000,4 +## +/-0.0f, +/-FLT_MIN +/-FLT_MAX ## +np.float32,0x00000000,0xff800000,4 +np.float32,0x80000000,0xff800000,4 +np.float32,0x7f7fffff,0x42b17218,4 +np.float32,0x80800000,0xffc00000,4 +np.float32,0xff7fffff,0xffc00000,4 +## 1.00f + 0x00000001 ## +np.float32,0x3f800000,0x00000000,4 +np.float32,0x3f800001,0x33ffffff,4 +np.float32,0x3f800002,0x347ffffe,4 +np.float32,0x3f7fffff,0xb3800000,4 +np.float32,0x3f7ffffe,0xb4000000,4 +np.float32,0x3f7ffffd,0xb4400001,4 +np.float32,0x402df853,0x3f7ffffe,4 +np.float32,0x402df854,0x3f7fffff,4 +np.float32,0x402df855,0x3f800000,4 +np.float32,0x402df856,0x3f800001,4 +np.float32,0x3ebc5ab0,0xbf800001,4 +np.float32,0x3ebc5ab1,0xbf800000,4 +np.float32,0x3ebc5ab2,0xbf800000,4 +np.float32,0x3ebc5ab3,0xbf7ffffe,4 +np.float32,0x423ef575,0x407768ab,4 +np.float32,0x427b8c61,0x408485dd,4 +np.float32,0x4211e9ee,0x406630b0,4 +np.float32,0x424d5c41,0x407c0fed,4 +np.float32,0x42be722a,0x4091cc91,4 +np.float32,0x42b73d30,0x4090908b,4 +np.float32,0x427e48e2,0x4084de7f,4 +np.float32,0x428f759b,0x4088bba3,4 +np.float32,0x41629069,0x4029a0cc,4 +np.float32,0x4272c99d,0x40836379,4 +np.float32,0x4d1b7458,0x4197463d,4 +np.float32,0x4f10c594,0x41ace2b2,4 +np.float32,0x4ea397c2,0x41a85171,4 +np.float32,0x4fefa9d1,0x41b6769c,4 +np.float32,0x4ebac6ab,0x41a960dc,4 +np.float32,0x4f6efb42,0x41b0e535,4 +np.float32,0x4e9ab8e7,0x41a7df44,4 +np.float32,0x4e81b5d1,0x41a67625,4 +np.float32,0x5014d9f2,0x41b832bd,4 +np.float32,0x4f02175c,0x41ac07b8,4 +np.float32,0x7f034f89,0x42b01c47,4 +np.float32,0x7f56d00e,0x42b11849,4 +np.float32,0x7f1cd5f6,0x42b0773a,4 +np.float32,0x7e979174,0x42af02d7,4 +np.float32,0x7f23369f,0x42b08ba2,4 +np.float32,0x7f0637ae,0x42b0277d,4 +np.float32,0x7efcb6e8,0x42b00897,4 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+np.float32,0x3f48cab8,0xbe78bd05,4 +np.float32,0x3f4b0569,0xbe6d6ea4,4 +np.float32,0x3f47de32,0xbe7d7607,4 +np.float32,0x3f477328,0xbe7f9b00,4 +np.float32,0x3f496dab,0xbe757f52,4 +np.float32,0x3f47662c,0xbe7fddac,4 +np.float32,0x3f48ddd8,0xbe785b80,4 +np.float32,0x3f481866,0xbe7c4bff,4 +np.float32,0x3f48b119,0xbe793fb6,4 +np.float32,0x3f48c7e8,0xbe78cb5c,4 +np.float32,0x3f4985f6,0xbe7503da,4 +np.float32,0x3f483fdf,0xbe7b8212,4 +np.float32,0x3f4b1c76,0xbe6cfa67,4 +np.float32,0x3f480b2e,0xbe7c8fa8,4 +np.float32,0x3f48745f,0xbe7a75bf,4 +np.float32,0x3f485bda,0xbe7af308,4 +np.float32,0x3f47a660,0xbe7e942c,4 +np.float32,0x3f47d4d5,0xbe7da600,4 +np.float32,0x3f4b0a26,0xbe6d56be,4 +np.float32,0x3f4a4883,0xbe712924,4 +np.float32,0x3f4769e7,0xbe7fca84,4 +np.float32,0x3f499702,0xbe74ad3f,4 +np.float32,0x3f494ab1,0xbe763131,4 +np.float32,0x3f476b69,0xbe7fc2c6,4 +np.float32,0x3f4884e8,0xbe7a214a,4 +np.float32,0x3f486945,0xbe7aae76,4 +#float64 +## +ve denormal ## +np.float64,0x0000000000000001,0xc0874385446d71c3,1 +np.float64,0x0001000000000000,0xc086395a2079b70c,1 +np.float64,0x000fffffffffffff,0xc086232bdd7abcd2,1 +np.float64,0x0007ad63e2168cb6,0xc086290bc0b2980f,1 +## -ve denormal ## +np.float64,0x8000000000000001,0xfff8000000000001,1 +np.float64,0x8001000000000000,0xfff8000000000001,1 +np.float64,0x800fffffffffffff,0xfff8000000000001,1 +np.float64,0x8007ad63e2168cb6,0xfff8000000000001,1 +## +/-0.0f, MAX, MIN## +np.float64,0x0000000000000000,0xfff0000000000000,1 +np.float64,0x8000000000000000,0xfff0000000000000,1 +np.float64,0x7fefffffffffffff,0x40862e42fefa39ef,1 +np.float64,0xffefffffffffffff,0xfff8000000000001,1 +## near 1.0f ## +np.float64,0x3ff0000000000000,0x0000000000000000,1 +np.float64,0x3fe8000000000000,0xbfd269621134db92,1 +np.float64,0x3ff0000000000001,0x3cafffffffffffff,1 +np.float64,0x3ff0000020000000,0x3e7fffffe000002b,1 +np.float64,0x3ff0000000000001,0x3cafffffffffffff,1 +np.float64,0x3fefffffe0000000,0xbe70000008000005,1 +np.float64,0x3fefffffffffffff,0xbca0000000000000,1 +## random numbers ## +np.float64,0x02500186f3d9da56,0xc0855b8abf135773,1 +np.float64,0x09200815a3951173,0xc082ff1ad7131bdc,1 +np.float64,0x0da029623b0243d4,0xc0816fc994695bb5,1 +np.float64,0x48703b8ac483a382,0x40579213a313490b,1 +np.float64,0x09207b74c87c9860,0xc082fee20ff349ef,1 +np.float64,0x62c077698e8df947,0x407821c996d110f0,1 +np.float64,0x2350b45e87c3cfb0,0xc073d6b16b51d072,1 +np.float64,0x3990a23f9ff2b623,0xc051aa60eadd8c61,1 +np.float64,0x0d011386a116c348,0xc081a6cc7ea3b8fb,1 +np.float64,0x1fe0f0303ebe273a,0xc0763870b78a81ca,1 +np.float64,0x0cd1260121d387da,0xc081b7668d61a9d1,1 +np.float64,0x1e6135a8f581d422,0xc077425ac10f08c2,1 +np.float64,0x622168db5fe52d30,0x4077b3c669b9fadb,1 +np.float64,0x69f188e1ec6d1718,0x407d1e2f18c63889,1 +np.float64,0x3aa1bf1d9c4dd1a3,0xc04d682e24bde479,1 +np.float64,0x6c81c4011ce4f683,0x407ee5190e8a8e6a,1 +np.float64,0x2191fa55aa5a5095,0xc0750c0c318b5e2d,1 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a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/cython/._setup.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/cython/._setup.py new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/cython/._setup.py differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/cython/checks.pyx b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/cython/checks.pyx new file mode 100644 index 0000000000000000000000000000000000000000..a2637951908c5288cb21f6e1d7c8be6de20c5ae2 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/cython/checks.pyx @@ -0,0 +1,381 @@ +#cython: language_level=3 + +""" +Functions in this module give python-space wrappers for cython functions +exposed in numpy/__init__.pxd, so they can be tested in test_cython.py +""" +import numpy as np +cimport numpy as cnp +cnp.import_array() + + +def is_td64(obj): + return cnp.is_timedelta64_object(obj) + + +def is_dt64(obj): + return cnp.is_datetime64_object(obj) + + +def get_dt64_value(obj): + return cnp.get_datetime64_value(obj) + + +def get_td64_value(obj): + return cnp.get_timedelta64_value(obj) + + +def get_dt64_unit(obj): + return cnp.get_datetime64_unit(obj) + + +def is_integer(obj): + return isinstance(obj, (cnp.integer, int)) + + +def get_datetime_iso_8601_strlen(): + return cnp.get_datetime_iso_8601_strlen(0, cnp.NPY_FR_ns) + + +def convert_datetime64_to_datetimestruct(): + cdef: + cnp.npy_datetimestruct dts + cnp.PyArray_DatetimeMetaData meta + cnp.int64_t value = 1647374515260292 + # i.e. (time.time() * 10**6) at 2022-03-15 20:01:55.260292 UTC + + meta.base = cnp.NPY_FR_us + meta.num = 1 + cnp.convert_datetime64_to_datetimestruct(&meta, value, &dts) + return dts + + +def make_iso_8601_datetime(dt: "datetime"): + cdef: + cnp.npy_datetimestruct dts + char result[36] # 36 corresponds to NPY_FR_s passed below + int local = 0 + int utc = 0 + int tzoffset = 0 + + dts.year = dt.year + dts.month = dt.month + dts.day = dt.day + dts.hour = dt.hour + dts.min = dt.minute + dts.sec = dt.second + dts.us = dt.microsecond + dts.ps = dts.as = 0 + + cnp.make_iso_8601_datetime( + &dts, + result, + sizeof(result), + local, + utc, + cnp.NPY_FR_s, + tzoffset, + cnp.NPY_NO_CASTING, + ) + return result + + +cdef cnp.broadcast multiiter_from_broadcast_obj(object bcast): + cdef dict iter_map = { + 1: cnp.PyArray_MultiIterNew1, + 2: cnp.PyArray_MultiIterNew2, + 3: cnp.PyArray_MultiIterNew3, + 4: cnp.PyArray_MultiIterNew4, + 5: cnp.PyArray_MultiIterNew5, + } + arrays = [x.base for x in bcast.iters] + cdef cnp.broadcast result = iter_map[len(arrays)](*arrays) + return result + + +def get_multiiter_size(bcast: "broadcast"): + cdef cnp.broadcast multi = multiiter_from_broadcast_obj(bcast) + return multi.size + + +def get_multiiter_number_of_dims(bcast: "broadcast"): + cdef cnp.broadcast multi = multiiter_from_broadcast_obj(bcast) + return multi.nd + + +def get_multiiter_current_index(bcast: "broadcast"): + cdef cnp.broadcast multi = multiiter_from_broadcast_obj(bcast) + return multi.index + + +def get_multiiter_num_of_iterators(bcast: "broadcast"): + cdef cnp.broadcast multi = multiiter_from_broadcast_obj(bcast) + return multi.numiter + + +def get_multiiter_shape(bcast: "broadcast"): + cdef cnp.broadcast multi = multiiter_from_broadcast_obj(bcast) + return tuple([multi.dimensions[i] for i in range(bcast.nd)]) + + +def get_multiiter_iters(bcast: "broadcast"): + cdef cnp.broadcast multi = multiiter_from_broadcast_obj(bcast) + return tuple([multi.iters[i] for i in range(bcast.numiter)]) + + +def get_default_integer(): + if cnp.NPY_DEFAULT_INT == cnp.NPY_LONG: + return cnp.dtype("long") + if cnp.NPY_DEFAULT_INT == cnp.NPY_INTP: + return cnp.dtype("intp") + return None + +def get_ravel_axis(): + return cnp.NPY_RAVEL_AXIS + + +def conv_intp(cnp.intp_t val): + return val + + +def get_dtype_flags(cnp.dtype dtype): + return dtype.flags + + +cdef cnp.NpyIter* npyiter_from_nditer_obj(object it): + """A function to create a NpyIter struct from a nditer object. + + This function is only meant for testing purposes and only extracts the + necessary info from nditer to test the functionality of NpyIter methods + """ + cdef: + cnp.NpyIter* cit + cnp.PyArray_Descr* op_dtypes[3] + cnp.npy_uint32 op_flags[3] + cnp.PyArrayObject* ops[3] + cnp.npy_uint32 flags = 0 + + if it.has_index: + flags |= cnp.NPY_ITER_C_INDEX + if it.has_delayed_bufalloc: + flags |= cnp.NPY_ITER_BUFFERED | cnp.NPY_ITER_DELAY_BUFALLOC + if it.has_multi_index: + flags |= cnp.NPY_ITER_MULTI_INDEX + + # one of READWRITE, READONLY and WRTIEONLY at the minimum must be specified for op_flags + for i in range(it.nop): + op_flags[i] = cnp.NPY_ITER_READONLY + + for i in range(it.nop): + op_dtypes[i] = cnp.PyArray_DESCR(it.operands[i]) + ops[i] = it.operands[i] + + cit = cnp.NpyIter_MultiNew(it.nop, &ops[0], flags, cnp.NPY_KEEPORDER, + cnp.NPY_NO_CASTING, &op_flags[0], + NULL) + return cit + + +def get_npyiter_size(it: "nditer"): + cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it) + result = cnp.NpyIter_GetIterSize(cit) + cnp.NpyIter_Deallocate(cit) + return result + + +def get_npyiter_ndim(it: "nditer"): + cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it) + result = cnp.NpyIter_GetNDim(cit) + cnp.NpyIter_Deallocate(cit) + return result + + +def get_npyiter_nop(it: "nditer"): + cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it) + result = cnp.NpyIter_GetNOp(cit) + cnp.NpyIter_Deallocate(cit) + return result + + +def get_npyiter_operands(it: "nditer"): + cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it) + try: + arr = cnp.NpyIter_GetOperandArray(cit) + return tuple([arr[i] for i in range(it.nop)]) + finally: + cnp.NpyIter_Deallocate(cit) + + +def get_npyiter_itviews(it: "nditer"): + cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it) + result = tuple([cnp.NpyIter_GetIterView(cit, i) for i in range(it.nop)]) + cnp.NpyIter_Deallocate(cit) + return result + + +def get_npyiter_dtypes(it: "nditer"): + cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it) + try: + arr = cnp.NpyIter_GetDescrArray(cit) + return tuple([arr[i] for i in range(it.nop)]) + finally: + cnp.NpyIter_Deallocate(cit) + + +def npyiter_has_delayed_bufalloc(it: "nditer"): + cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it) + result = cnp.NpyIter_HasDelayedBufAlloc(cit) + cnp.NpyIter_Deallocate(cit) + return result + + +def npyiter_has_index(it: "nditer"): + cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it) + result = cnp.NpyIter_HasIndex(cit) + cnp.NpyIter_Deallocate(cit) + return result + + +def npyiter_has_multi_index(it: "nditer"): + cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it) + result = cnp.NpyIter_HasMultiIndex(cit) + cnp.NpyIter_Deallocate(cit) + return result + + +def test_get_multi_index_iter_next(it: "nditer", cnp.ndarray[cnp.float64_t, ndim=2] arr): + cdef cnp.NpyIter* cit = npyiter_from_nditer_obj(it) + cdef cnp.NpyIter_GetMultiIndexFunc _get_multi_index = \ + cnp.NpyIter_GetGetMultiIndex(cit, NULL) + cdef cnp.NpyIter_IterNextFunc _iternext = \ + cnp.NpyIter_GetIterNext(cit, NULL) + cnp.NpyIter_Deallocate(cit) + return 1 + + +def npyiter_has_finished(it: "nditer"): + cdef cnp.NpyIter* cit + try: + cit = npyiter_from_nditer_obj(it) + cnp.NpyIter_GotoIterIndex(cit, it.index) + return not (cnp.NpyIter_GetIterIndex(cit) < cnp.NpyIter_GetIterSize(cit)) + finally: + cnp.NpyIter_Deallocate(cit) + +def compile_fillwithbyte(): + # Regression test for gh-25878, mostly checks it compiles. + cdef cnp.npy_intp dims[2] + dims = (1, 2) + pos = cnp.PyArray_ZEROS(2, dims, cnp.NPY_UINT8, 0) + cnp.PyArray_FILLWBYTE(pos, 1) + return pos + +def inc2_cfloat_struct(cnp.ndarray[cnp.cfloat_t] arr): + # This works since we compile in C mode, it will fail in cpp mode + arr[1].real += 1 + arr[1].imag += 1 + # This works in both modes + arr[1].real = arr[1].real + 1 + arr[1].imag = arr[1].imag + 1 + + +def npystring_pack(arr): + cdef char *string = "Hello world" + cdef size_t size = 11 + + allocator = cnp.NpyString_acquire_allocator( + cnp.PyArray_DESCR(arr) + ) + + # copy string->packed_string, the pointer to the underlying array buffer + ret = cnp.NpyString_pack( + allocator, cnp.PyArray_DATA(arr), string, size, + ) + + cnp.NpyString_release_allocator(allocator) + return ret + + +def npystring_load(arr): + allocator = cnp.NpyString_acquire_allocator( + cnp.PyArray_DESCR(arr) + ) + + cdef cnp.npy_static_string sdata + sdata.size = 0 + sdata.buf = NULL + + cdef cnp.npy_packed_static_string *packed_string = cnp.PyArray_DATA(arr) + cdef int is_null = cnp.NpyString_load(allocator, packed_string, &sdata) + cnp.NpyString_release_allocator(allocator) + if is_null == -1: + raise ValueError("String unpacking failed.") + elif is_null == 1: + # String in the array buffer is the null string + return "" + else: + # Cython syntax for copying a c string to python bytestring: + # slice the char * by the length of the string + return sdata.buf[:sdata.size].decode('utf-8') + + +def npystring_pack_multiple(arr1, arr2): + cdef cnp.npy_string_allocator *allocators[2] + cdef cnp.PyArray_Descr *descrs[2] + descrs[0] = cnp.PyArray_DESCR(arr1) + descrs[1] = cnp.PyArray_DESCR(arr2) + + cnp.NpyString_acquire_allocators(2, descrs, allocators) + + # Write into the first element of each array + cdef int ret1 = cnp.NpyString_pack( + allocators[0], cnp.PyArray_DATA(arr1), "Hello world", 11, + ) + cdef int ret2 = cnp.NpyString_pack( + allocators[1], cnp.PyArray_DATA(arr2), "test this", 9, + ) + + # Write a null string into the last element + cdef cnp.npy_intp elsize = cnp.PyArray_ITEMSIZE(arr1) + cdef int ret3 = cnp.NpyString_pack_null( + allocators[0], + (cnp.PyArray_DATA(arr1) + 2*elsize), + ) + + cnp.NpyString_release_allocators(2, allocators) + if ret1 == -1 or ret2 == -1 or ret3 == -1: + return -1 + + return 0 + + +def npystring_allocators_other_types(arr1, arr2): + cdef cnp.npy_string_allocator *allocators[2] + cdef cnp.PyArray_Descr *descrs[2] + descrs[0] = cnp.PyArray_DESCR(arr1) + descrs[1] = cnp.PyArray_DESCR(arr2) + + cnp.NpyString_acquire_allocators(2, descrs, allocators) + + # None of the dtypes here are StringDType, so every allocator + # should be NULL upon acquisition. + cdef int ret = 0 + for allocator in allocators: + if allocator != NULL: + ret = -1 + break + + cnp.NpyString_release_allocators(2, allocators) + return ret + + +def check_npy_uintp_type_enum(): + # Regression test for gh-27890: cnp.NPY_UINTP was not defined. + # Cython would fail to compile this before gh-27890 was fixed. + return cnp.NPY_UINTP > 0 + + +def resize_refcheck_test(): + # see gh-30991 + a = np.array([[0, 1], [2, 3]], order='C') + a.resize((2, 1)) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/cython/meson.build b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/cython/meson.build new file mode 100644 index 0000000000000000000000000000000000000000..8362c339ae7372ece36b97d57e2e03509f4e4c0b --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/cython/meson.build @@ -0,0 +1,43 @@ +project('checks', 'c', 'cython') + +py = import('python').find_installation(pure: false) + +cc = meson.get_compiler('c') +cy = meson.get_compiler('cython') + +# Keep synced with pyproject.toml +if not cy.version().version_compare('>=3.0.6') + error('tests requires Cython >= 3.0.6') +endif + +cython_args = [] +if cy.version().version_compare('>=3.1.0') + cython_args += ['-Xfreethreading_compatible=True'] +endif + +npy_include_path = run_command(py, [ + '-c', + 'import os; os.chdir(".."); import numpy; print(os.path.abspath(numpy.get_include()))' + ], check: true).stdout().strip() + +npy_path = run_command(py, [ + '-c', + 'import os; os.chdir(".."); import numpy; print(os.path.dirname(numpy.__file__).removesuffix("numpy"))' + ], check: true).stdout().strip() + +# TODO: This is a hack due to gh-25135, where cython may not find the right +# __init__.pyd file. +add_project_arguments('-I', npy_path, language : 'cython') + +py.extension_module( + 'checks', + 'checks.pyx', + install: false, + c_args: [ + '-DNPY_NO_DEPRECATED_API=0', # Cython still uses old NumPy C API + # Require 1.25+ to test datetime additions + '-DNPY_TARGET_VERSION=NPY_2_0_API_VERSION', + ], + include_directories: [npy_include_path], + cython_args: cython_args, +) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/cython/setup.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/cython/setup.py new file mode 100644 index 0000000000000000000000000000000000000000..eb57477fc2a175b77746ce5a7a435ce98f028f79 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/cython/setup.py @@ -0,0 +1,39 @@ +""" +Provide python-space access to the functions exposed in numpy/__init__.pxd +for testing. +""" + +import os +from distutils.core import setup + +import Cython +from Cython.Build import cythonize +from setuptools.extension import Extension + +import numpy as np +from numpy._utils import _pep440 + +macros = [ + ("NPY_NO_DEPRECATED_API", 0), + # Require 1.25+ to test datetime additions + ("NPY_TARGET_VERSION", "NPY_2_0_API_VERSION"), +] + +checks = Extension( + "checks", + sources=[os.path.join('.', "checks.pyx")], + include_dirs=[np.get_include()], + define_macros=macros, +) + +extensions = [checks] + +compiler_directives = {} +if _pep440.parse(Cython.__version__) >= _pep440.parse("3.1.0a0"): + compiler_directives['freethreading_compatible'] = True + +setup( + ext_modules=cythonize( + extensions, + compiler_directives=compiler_directives) +) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/limited_api/.___pycache__ 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mode 100644 index 0000000000000000000000000000000000000000..115a3f3a68355e1825d0504e8044ef14e2e816bb --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/limited_api/limited_api1.c @@ -0,0 +1,15 @@ +#include +#include +#include + +static PyModuleDef moduledef = { + .m_base = PyModuleDef_HEAD_INIT, + .m_name = "limited_api1" +}; + +PyMODINIT_FUNC PyInit_limited_api1(void) +{ + import_array(); + import_umath(); + return PyModule_Create(&moduledef); +} diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/limited_api/limited_api2.pyx b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/limited_api/limited_api2.pyx new file mode 100644 index 0000000000000000000000000000000000000000..327d5b038c6c8b7b00ab5272ec75fde74572ce0e --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/limited_api/limited_api2.pyx @@ -0,0 +1,11 @@ +#cython: language_level=3 + +""" +Make sure cython can compile in limited API mode (see meson.build) +""" + +cdef extern from "numpy/arrayobject.h": + pass +cdef extern from "numpy/arrayscalars.h": + pass + diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/limited_api/limited_api_latest.c b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/limited_api/limited_api_latest.c new file mode 100644 index 0000000000000000000000000000000000000000..92d83ea977a1294a14d84205f7c604873ee91723 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/limited_api/limited_api_latest.c @@ -0,0 +1,19 @@ +#include +#include +#include + +#if Py_LIMITED_API != PY_VERSION_HEX & 0xffff0000 + # error "Py_LIMITED_API not defined to Python major+minor version" +#endif + +static PyModuleDef moduledef = { + .m_base = PyModuleDef_HEAD_INIT, + .m_name = "limited_api_latest" +}; + +PyMODINIT_FUNC PyInit_limited_api_latest(void) +{ + import_array(); + import_umath(); + return PyModule_Create(&moduledef); +} diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/limited_api/meson.build b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/limited_api/meson.build new file mode 100644 index 0000000000000000000000000000000000000000..2348b0856d0f14dbbc16a3839a06f0a3ebccd232 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/limited_api/meson.build @@ -0,0 +1,63 @@ +project( + 'checks', + 'c', 'cython', + meson_version: '>=1.8.3', +) + +py = import('python').find_installation(pure: false) + +cc = meson.get_compiler('c') +cy = meson.get_compiler('cython') + +# Keep synced with pyproject.toml +if not cy.version().version_compare('>=3.0.6') + error('tests requires Cython >= 3.0.6') +endif + +npy_include_path = run_command(py, [ + '-c', + 'import os; os.chdir(".."); import numpy; print(os.path.abspath(numpy.get_include()))' + ], check: true).stdout().strip() + +npy_path = run_command(py, [ + '-c', + 'import os; os.chdir(".."); import numpy; print(os.path.dirname(numpy.__file__).removesuffix("numpy"))' + ], check: true).stdout().strip() + +# TODO: This is a hack due to https://github.com/cython/cython/issues/5820, +# where cython may not find the right __init__.pyd file. +add_project_arguments('-I', npy_path, language : 'cython') + +py.extension_module( + 'limited_api1', + 'limited_api1.c', + c_args: [ + '-DNPY_NO_DEPRECATED_API=NPY_1_21_API_VERSION', + ], + include_directories: [npy_include_path], + limited_api: '3.9', +) + +py.extension_module( + 'limited_api_latest', + 'limited_api_latest.c', + c_args: [ + '-DNPY_NO_DEPRECATED_API=NPY_1_21_API_VERSION', + ], + include_directories: [npy_include_path], + limited_api: py.language_version(), +) + +py.extension_module( + 'limited_api2', + 'limited_api2.pyx', + install: false, + c_args: [ + '-DNPY_NO_DEPRECATED_API=0', + # Require 1.25+ to test datetime additions + '-DNPY_TARGET_VERSION=NPY_2_0_API_VERSION', + '-DCYTHON_LIMITED_API=1', + ], + include_directories: [npy_include_path], + limited_api: '3.9', +) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/limited_api/setup.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/limited_api/setup.py new file mode 100644 index 0000000000000000000000000000000000000000..16adcd12327d103444307069bf5092bfee6cea5f --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/examples/limited_api/setup.py @@ -0,0 +1,24 @@ +""" +Build an example package using the limited Python C API. +""" + +import os + +from setuptools import Extension, setup + +import numpy as np + +macros = [("NPY_NO_DEPRECATED_API", 0), ("Py_LIMITED_API", "0x03060000")] + +limited_api = Extension( + "limited_api", + sources=[os.path.join('.', "limited_api.c")], + include_dirs=[np.get_include()], + define_macros=macros, +) + +extensions = [limited_api] + +setup( + ext_modules=extensions +) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test__exceptions.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test__exceptions.py new file mode 100644 index 0000000000000000000000000000000000000000..35782e7a5878c1d74207c9503aa6c81be8f07497 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test__exceptions.py @@ -0,0 +1,90 @@ +""" +Tests of the ._exceptions module. Primarily for exercising the __str__ methods. +""" + +import pickle + +import pytest + +import numpy as np +from numpy.exceptions import AxisError + +_ArrayMemoryError = np._core._exceptions._ArrayMemoryError +_UFuncNoLoopError = np._core._exceptions._UFuncNoLoopError + +class TestArrayMemoryError: + def test_pickling(self): + """ Test that _ArrayMemoryError can be pickled """ + error = _ArrayMemoryError((1023,), np.dtype(np.uint8)) + res = pickle.loads(pickle.dumps(error)) + assert res._total_size == error._total_size + + def test_str(self): + e = _ArrayMemoryError((1023,), np.dtype(np.uint8)) + str(e) # not crashing is enough + + # testing these properties is easier than testing the full string repr + def test__size_to_string(self): + """ Test e._size_to_string """ + f = _ArrayMemoryError._size_to_string + Ki = 1024 + assert f(0) == '0 bytes' + assert f(1) == '1 bytes' + assert f(1023) == '1023 bytes' + assert f(Ki) == '1.00 KiB' + assert f(Ki + 1) == '1.00 KiB' + assert f(10 * Ki) == '10.0 KiB' + assert f(int(999.4 * Ki)) == '999. KiB' + assert f(int(1023.4 * Ki)) == '1023. KiB' + assert f(int(1023.5 * Ki)) == '1.00 MiB' + assert f(Ki * Ki) == '1.00 MiB' + + # 1023.9999 Mib should round to 1 GiB + assert f(int(Ki * Ki * Ki * 0.9999)) == '1.00 GiB' + assert f(Ki * Ki * Ki * Ki * Ki * Ki) == '1.00 EiB' + # larger than sys.maxsize, adding larger prefixes isn't going to help + # anyway. + assert f(Ki * Ki * Ki * Ki * Ki * Ki * 123456) == '123456. EiB' + + def test__total_size(self): + """ Test e._total_size """ + e = _ArrayMemoryError((1,), np.dtype(np.uint8)) + assert e._total_size == 1 + + e = _ArrayMemoryError((2, 4), np.dtype((np.uint64, 16))) + assert e._total_size == 1024 + + +class TestUFuncNoLoopError: + def test_pickling(self): + """ Test that _UFuncNoLoopError can be pickled """ + assert isinstance(pickle.dumps(_UFuncNoLoopError), bytes) + + +@pytest.mark.parametrize("args", [ + (2, 1, None), + (2, 1, "test_prefix"), + ("test message",), +]) +class TestAxisError: + def test_attr(self, args): + """Validate attribute types.""" + exc = AxisError(*args) + if len(args) == 1: + assert exc.axis is None + assert exc.ndim is None + else: + axis, ndim, *_ = args + assert exc.axis == axis + assert exc.ndim == ndim + + def test_pickling(self, args): + """Test that `AxisError` can be pickled.""" + exc = AxisError(*args) + exc2 = pickle.loads(pickle.dumps(exc)) + + assert type(exc) is type(exc2) + for name in ("axis", "ndim", "args"): + attr1 = getattr(exc, name) + attr2 = getattr(exc2, name) + assert attr1 == attr2, name diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_abc.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_abc.py new file mode 100644 index 0000000000000000000000000000000000000000..aee1904f17276a420a7c5375948c0585621f78b7 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_abc.py @@ -0,0 +1,54 @@ +import numbers + +import numpy as np +from numpy._core.numerictypes import sctypes +from numpy.testing import assert_ + + +class TestABC: + def test_abstract(self): + assert_(issubclass(np.number, numbers.Number)) + + assert_(issubclass(np.inexact, numbers.Complex)) + assert_(issubclass(np.complexfloating, numbers.Complex)) + assert_(issubclass(np.floating, numbers.Real)) + + assert_(issubclass(np.integer, numbers.Integral)) + assert_(issubclass(np.signedinteger, numbers.Integral)) + assert_(issubclass(np.unsignedinteger, numbers.Integral)) + + def test_floats(self): + for t in sctypes['float']: + assert_(isinstance(t(), numbers.Real), + f"{t.__name__} is not instance of Real") + assert_(issubclass(t, numbers.Real), + f"{t.__name__} is not subclass of Real") + assert_(not isinstance(t(), numbers.Rational), + f"{t.__name__} is instance of Rational") + assert_(not issubclass(t, numbers.Rational), + f"{t.__name__} is subclass of Rational") + + def test_complex(self): + for t in sctypes['complex']: + assert_(isinstance(t(), numbers.Complex), + f"{t.__name__} is not instance of Complex") + assert_(issubclass(t, numbers.Complex), + f"{t.__name__} is not subclass of Complex") + assert_(not isinstance(t(), numbers.Real), + f"{t.__name__} is instance of Real") + assert_(not issubclass(t, numbers.Real), + f"{t.__name__} is subclass of Real") + + def test_int(self): + for t in sctypes['int']: + assert_(isinstance(t(), numbers.Integral), + f"{t.__name__} is not instance of Integral") + assert_(issubclass(t, numbers.Integral), + f"{t.__name__} is not subclass of Integral") + + def test_uint(self): + for t in sctypes['uint']: + assert_(isinstance(t(), numbers.Integral), + f"{t.__name__} is not instance of Integral") + assert_(issubclass(t, numbers.Integral), + f"{t.__name__} is not subclass of Integral") diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_api.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_api.py new file mode 100644 index 0000000000000000000000000000000000000000..216a2c75afb8418a34e928d71b057d686c61c2ba --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_api.py @@ -0,0 +1,655 @@ +import sys + +import pytest + +import numpy as np +import numpy._core.umath as ncu +from numpy._core._rational_tests import rational +from numpy.lib import stride_tricks +from numpy.testing import ( + HAS_REFCOUNT, + assert_, + assert_array_equal, + assert_equal, + assert_raises, +) + + +def test_array_array(): + tobj = type(object) + ones11 = np.ones((1, 1), np.float64) + tndarray = type(ones11) + # Test is_ndarray + assert_equal(np.array(ones11, dtype=np.float64), ones11) + if HAS_REFCOUNT: + old_refcount = sys.getrefcount(tndarray) + np.array(ones11) + assert_equal(old_refcount, sys.getrefcount(tndarray)) + + # test None + assert_equal(np.array(None, dtype=np.float64), + np.array(np.nan, dtype=np.float64)) + if HAS_REFCOUNT: + old_refcount = sys.getrefcount(tobj) + np.array(None, dtype=np.float64) + assert_equal(old_refcount, sys.getrefcount(tobj)) + + # test scalar + assert_equal(np.array(1.0, dtype=np.float64), + np.ones((), dtype=np.float64)) + if HAS_REFCOUNT: + old_refcount = sys.getrefcount(np.float64) + np.array(np.array(1.0, dtype=np.float64), dtype=np.float64) + assert_equal(old_refcount, sys.getrefcount(np.float64)) + + # test string + S2 = np.dtype((bytes, 2)) + S3 = np.dtype((bytes, 3)) + S5 = np.dtype((bytes, 5)) + assert_equal(np.array(b"1.0", dtype=np.float64), + np.ones((), dtype=np.float64)) + assert_equal(np.array(b"1.0").dtype, S3) + assert_equal(np.array(b"1.0", dtype=bytes).dtype, S3) + assert_equal(np.array(b"1.0", dtype=S2), np.array(b"1.")) + assert_equal(np.array(b"1", dtype=S5), np.ones((), dtype=S5)) + + # test string + U2 = np.dtype((str, 2)) + U3 = np.dtype((str, 3)) + U5 = np.dtype((str, 5)) + assert_equal(np.array("1.0", dtype=np.float64), + np.ones((), dtype=np.float64)) + assert_equal(np.array("1.0").dtype, U3) + assert_equal(np.array("1.0", dtype=str).dtype, U3) + assert_equal(np.array("1.0", dtype=U2), np.array("1.")) + assert_equal(np.array("1", dtype=U5), np.ones((), dtype=U5)) + + builtins = getattr(__builtins__, '__dict__', __builtins__) + assert_(hasattr(builtins, 'get')) + + # test memoryview + dat = np.array(memoryview(b'1.0'), dtype=np.float64) + assert_equal(dat, [49.0, 46.0, 48.0]) + assert_(dat.dtype.type is np.float64) + + dat = np.array(memoryview(b'1.0')) + assert_equal(dat, [49, 46, 48]) + assert_(dat.dtype.type is np.uint8) + + # test array interface + a = np.array(100.0, dtype=np.float64) + o = type("o", (object,), + {"__array_interface__": a.__array_interface__}) + assert_equal(np.array(o, dtype=np.float64), a) + + # test array_struct interface + a = np.array([(1, 4.0, 'Hello'), (2, 6.0, 'World')], + dtype=[('f0', int), ('f1', float), ('f2', str)]) + o = type("o", (object,), + {"__array_struct__": a.__array_struct__}) + # wasn't what I expected... is np.array(o) supposed to equal a ? + # instead we get an array([...], dtype=">V18") + assert_equal(bytes(np.array(o).data), bytes(a.data)) + + # test __array__ + def custom__array__(self, dtype=None, copy=None): + return np.array(100.0, dtype=dtype, copy=copy) + + o = type("o", (object,), {"__array__": custom__array__})() + assert_equal(np.array(o, dtype=np.float64), np.array(100.0, np.float64)) + + # test recursion + nested = 1.5 + for i in range(ncu.MAXDIMS): + nested = [nested] + + # no error + np.array(nested) + + # Exceeds recursion limit + assert_raises(ValueError, np.array, [nested], dtype=np.float64) + + # Try with lists... + # float32 + assert_equal(np.array([None] * 10, dtype=np.float32), + np.full((10,), np.nan, dtype=np.float32)) + assert_equal(np.array([[None]] * 10, dtype=np.float32), + np.full((10, 1), np.nan, dtype=np.float32)) + assert_equal(np.array([[None] * 10], dtype=np.float32), + np.full((1, 10), np.nan, dtype=np.float32)) + assert_equal(np.array([[None] * 10] * 10, dtype=np.float32), + np.full((10, 10), np.nan, dtype=np.float32)) + # float64 + assert_equal(np.array([None] * 10, dtype=np.float64), + np.full((10,), np.nan, dtype=np.float64)) + assert_equal(np.array([[None]] * 10, dtype=np.float64), + np.full((10, 1), np.nan, dtype=np.float64)) + assert_equal(np.array([[None] * 10], dtype=np.float64), + np.full((1, 10), np.nan, dtype=np.float64)) + assert_equal(np.array([[None] * 10] * 10, dtype=np.float64), + np.full((10, 10), np.nan, dtype=np.float64)) + + assert_equal(np.array([1.0] * 10, dtype=np.float64), + np.ones((10,), dtype=np.float64)) + assert_equal(np.array([[1.0]] * 10, dtype=np.float64), + np.ones((10, 1), dtype=np.float64)) + assert_equal(np.array([[1.0] * 10], dtype=np.float64), + np.ones((1, 10), dtype=np.float64)) + assert_equal(np.array([[1.0] * 10] * 10, dtype=np.float64), + np.ones((10, 10), dtype=np.float64)) + + # Try with tuples + assert_equal(np.array((None,) * 10, dtype=np.float64), + np.full((10,), np.nan, dtype=np.float64)) + assert_equal(np.array([(None,)] * 10, dtype=np.float64), + np.full((10, 1), np.nan, dtype=np.float64)) + assert_equal(np.array([(None,) * 10], dtype=np.float64), + np.full((1, 10), np.nan, dtype=np.float64)) + assert_equal(np.array([(None,) * 10] * 10, dtype=np.float64), + np.full((10, 10), np.nan, dtype=np.float64)) + + assert_equal(np.array((1.0,) * 10, dtype=np.float64), + np.ones((10,), dtype=np.float64)) + assert_equal(np.array([(1.0,)] * 10, dtype=np.float64), + np.ones((10, 1), dtype=np.float64)) + assert_equal(np.array([(1.0,) * 10], dtype=np.float64), + np.ones((1, 10), dtype=np.float64)) + assert_equal(np.array([(1.0,) * 10] * 10, dtype=np.float64), + np.ones((10, 10), dtype=np.float64)) + + +@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") +def test___array___refcount(): + class MyArray: + def __init__(self, dtype): + self.val = np.array(-1, dtype=dtype) + + def __array__(self, dtype=None, copy=None): + return self.val.__array__(dtype=dtype, copy=copy) + + # test all possible scenarios: + # dtype(none | same | different) x copy(true | false | none) + dt = np.dtype(np.int32) + old_refcount = sys.getrefcount(dt) + np.array(MyArray(dt)) + assert_equal(old_refcount, sys.getrefcount(dt)) + np.array(MyArray(dt), dtype=dt) + assert_equal(old_refcount, sys.getrefcount(dt)) + np.array(MyArray(dt), copy=None) + assert_equal(old_refcount, sys.getrefcount(dt)) + np.array(MyArray(dt), dtype=dt, copy=None) + assert_equal(old_refcount, sys.getrefcount(dt)) + dt2 = np.dtype(np.int16) + old_refcount2 = sys.getrefcount(dt2) + np.array(MyArray(dt), dtype=dt2) + assert_equal(old_refcount2, sys.getrefcount(dt2)) + np.array(MyArray(dt), dtype=dt2, copy=None) + assert_equal(old_refcount2, sys.getrefcount(dt2)) + with pytest.raises(ValueError): + np.array(MyArray(dt), dtype=dt2, copy=False) + assert_equal(old_refcount2, sys.getrefcount(dt2)) + + +@pytest.mark.parametrize("array", [True, False]) +def test_array_impossible_casts(array): + # All builtin types can be forcibly cast, at least theoretically, + # but user dtypes cannot necessarily. + rt = rational(1, 2) + if array: + rt = np.array(rt) + with assert_raises(TypeError): + np.array(rt, dtype="M8") + + +def test_array_astype(): + a = np.arange(6, dtype='f4').reshape(2, 3) + # Default behavior: allows unsafe casts, keeps memory layout, + # always copies. + b = a.astype('i4') + assert_equal(a, b) + assert_equal(b.dtype, np.dtype('i4')) + assert_equal(a.strides, b.strides) + b = a.T.astype('i4') + assert_equal(a.T, b) + assert_equal(b.dtype, np.dtype('i4')) + assert_equal(a.T.strides, b.strides) + b = a.astype('f4') + assert_equal(a, b) + assert_(not (a is b)) + + # copy=False parameter skips a copy + b = a.astype('f4', copy=False) + assert_(a is b) + + # order parameter allows overriding of the memory layout, + # forcing a copy if the layout is wrong + b = a.astype('f4', order='F', copy=False) + assert_equal(a, b) + assert_(not (a is b)) + assert_(b.flags.f_contiguous) + + b = a.astype('f4', order='C', copy=False) + assert_equal(a, b) + assert_(a is b) + assert_(b.flags.c_contiguous) + + # casting parameter allows catching bad casts + b = a.astype('c8', casting='safe') + assert_equal(a, b) + assert_equal(b.dtype, np.dtype('c8')) + + assert_raises(TypeError, a.astype, 'i4', casting='safe') + + # subok=False passes through a non-subclassed array + b = a.astype('f4', subok=0, copy=False) + assert_(a is b) + + class MyNDArray(np.ndarray): + pass + + a = np.array([[0, 1, 2], [3, 4, 5]], dtype='f4').view(MyNDArray) + + # subok=True passes through a subclass + b = a.astype('f4', subok=True, copy=False) + assert_(a is b) + + # subok=True is default, and creates a subtype on a cast + b = a.astype('i4', copy=False) + assert_equal(a, b) + assert_equal(type(b), MyNDArray) + + # subok=False never returns a subclass + b = a.astype('f4', subok=False, copy=False) + assert_equal(a, b) + assert_(not (a is b)) + assert_(type(b) is not MyNDArray) + + # Make sure converting from string object to fixed length string + # does not truncate. + a = np.array([b'a' * 100], dtype='O') + b = a.astype('S') + assert_equal(a, b) + assert_equal(b.dtype, np.dtype('S100')) + a = np.array(['a' * 100], dtype='O') + b = a.astype('U') + assert_equal(a, b) + assert_equal(b.dtype, np.dtype('U100')) + + # Same test as above but for strings shorter than 64 characters + a = np.array([b'a' * 10], dtype='O') + b = a.astype('S') + assert_equal(a, b) + assert_equal(b.dtype, np.dtype('S10')) + a = np.array(['a' * 10], dtype='O') + b = a.astype('U') + assert_equal(a, b) + assert_equal(b.dtype, np.dtype('U10')) + + a = np.array(123456789012345678901234567890, dtype='O').astype('S') + assert_array_equal(a, np.array(b'1234567890' * 3, dtype='S30')) + a = np.array(123456789012345678901234567890, dtype='O').astype('U') + assert_array_equal(a, np.array('1234567890' * 3, dtype='U30')) + + a = np.array([123456789012345678901234567890], dtype='O').astype('S') + assert_array_equal(a, np.array(b'1234567890' * 3, dtype='S30')) + a = np.array([123456789012345678901234567890], dtype='O').astype('U') + assert_array_equal(a, np.array('1234567890' * 3, dtype='U30')) + + a = np.array(123456789012345678901234567890, dtype='S') + assert_array_equal(a, np.array(b'1234567890' * 3, dtype='S30')) + a = np.array(123456789012345678901234567890, dtype='U') + assert_array_equal(a, np.array('1234567890' * 3, dtype='U30')) + + a = np.array('a\u0140', dtype='U') + b = np.ndarray(buffer=a, dtype='uint32', shape=2) + assert_(b.size == 2) + + a = np.array([1000], dtype='i4') + assert_raises(TypeError, a.astype, 'S1', casting='safe') + + a = np.array(1000, dtype='i4') + assert_raises(TypeError, a.astype, 'U1', casting='safe') + + # gh-24023 + assert_raises(TypeError, a.astype) + +@pytest.mark.parametrize("dt", ["S", "U"]) +def test_array_astype_to_string_discovery_empty(dt): + # See also gh-19085 + arr = np.array([""], dtype=object) + # Note, the itemsize is the `0 -> 1` logic, which should change. + # The important part the test is rather that it does not error. + assert arr.astype(dt).dtype.itemsize == np.dtype(f"{dt}1").itemsize + + # check the same thing for `np.can_cast` (since it accepts arrays) + assert np.can_cast(arr, dt, casting="unsafe") + assert not np.can_cast(arr, dt, casting="same_kind") + # as well as for the object as a descriptor: + assert np.can_cast("O", dt, casting="unsafe") + +@pytest.mark.parametrize("dt", ["d", "f", "S13", "U32"]) +def test_array_astype_to_void(dt): + dt = np.dtype(dt) + arr = np.array([], dtype=dt) + assert arr.astype("V").dtype.itemsize == dt.itemsize + +def test_object_array_astype_to_void(): + # This is different to `test_array_astype_to_void` as object arrays + # are inspected. The default void is "V8" (8 is the length of double) + arr = np.array([], dtype="O").astype("V") + assert arr.dtype == "V8" + +@pytest.mark.parametrize("t", + np._core.sctypes['uint'] + + np._core.sctypes['int'] + + np._core.sctypes['float'] +) +def test_array_astype_warning(t): + # test ComplexWarning when casting from complex to float or int + a = np.array(10, dtype=np.complex128) + pytest.warns(np.exceptions.ComplexWarning, a.astype, t) + +@pytest.mark.parametrize(["dtype", "out_dtype"], + [(np.bytes_, np.bool), + (np.str_, np.bool), + (np.dtype("S10,S9"), np.dtype("?,?")), + # The following also checks unaligned unicode access: + (np.dtype("S7,U9"), np.dtype("?,?"))]) +def test_string_to_boolean_cast(dtype, out_dtype): + # Only the last two (empty) strings are falsy (the `\0` is stripped): + arr = np.array( + ["10", "10\0\0\0", "0\0\0", "0", "False", " ", "", "\0"], + dtype=dtype) + expected = np.array( + [True, True, True, True, True, True, False, False], + dtype=out_dtype) + assert_array_equal(arr.astype(out_dtype), expected) + # As it's similar, check that nonzero behaves the same (structs are + # nonzero if all entries are) + assert_array_equal(np.nonzero(arr), np.nonzero(expected)) + +@pytest.mark.parametrize("str_type", [str, bytes, np.str_]) +@pytest.mark.parametrize("scalar_type", + [np.complex64, np.complex128, np.clongdouble]) +def test_string_to_complex_cast(str_type, scalar_type): + value = scalar_type(b"1+3j") + assert scalar_type(value) == 1 + 3j + assert np.array([value], dtype=object).astype(scalar_type)[()] == 1 + 3j + assert np.array(value).astype(scalar_type)[()] == 1 + 3j + arr = np.zeros(1, dtype=scalar_type) + arr[0] = value + assert arr[0] == 1 + 3j + +@pytest.mark.parametrize("dtype", np.typecodes["AllFloat"]) +def test_none_to_nan_cast(dtype): + # Note that at the time of writing this test, the scalar constructors + # reject None + arr = np.zeros(1, dtype=dtype) + arr[0] = None + assert np.isnan(arr)[0] + assert np.isnan(np.array(None, dtype=dtype))[()] + assert np.isnan(np.array([None], dtype=dtype))[0] + assert np.isnan(np.array(None).astype(dtype))[()] + +def test_copyto_fromscalar(): + a = np.arange(6, dtype='f4').reshape(2, 3) + + # Simple copy + np.copyto(a, 1.5) + assert_equal(a, 1.5) + np.copyto(a.T, 2.5) + assert_equal(a, 2.5) + + # Where-masked copy + mask = np.array([[0, 1, 0], [0, 0, 1]], dtype='?') + np.copyto(a, 3.5, where=mask) + assert_equal(a, [[2.5, 3.5, 2.5], [2.5, 2.5, 3.5]]) + mask = np.array([[0, 1], [1, 1], [1, 0]], dtype='?') + np.copyto(a.T, 4.5, where=mask) + assert_equal(a, [[2.5, 4.5, 4.5], [4.5, 4.5, 3.5]]) + +def test_copyto(): + a = np.arange(6, dtype='i4').reshape(2, 3) + + # Simple copy + np.copyto(a, [[3, 1, 5], [6, 2, 1]]) + assert_equal(a, [[3, 1, 5], [6, 2, 1]]) + + # Overlapping copy should work + np.copyto(a[:, :2], a[::-1, 1::-1]) + assert_equal(a, [[2, 6, 5], [1, 3, 1]]) + + # Defaults to 'same_kind' casting + assert_raises(TypeError, np.copyto, a, 1.5) + + # Force a copy with 'unsafe' casting, truncating 1.5 to 1 + np.copyto(a, 1.5, casting='unsafe') + assert_equal(a, 1) + + # Copying with a mask + np.copyto(a, 3, where=[True, False, True]) + assert_equal(a, [[3, 1, 3], [3, 1, 3]]) + + # Casting rule still applies with a mask + assert_raises(TypeError, np.copyto, a, 3.5, where=[True, False, True]) + + # Lists of integer 0's and 1's is ok too + np.copyto(a, 4.0, casting='unsafe', where=[[0, 1, 1], [1, 0, 0]]) + assert_equal(a, [[3, 4, 4], [4, 1, 3]]) + + # Overlapping copy with mask should work + np.copyto(a[:, :2], a[::-1, 1::-1], where=[[0, 1], [1, 1]]) + assert_equal(a, [[3, 4, 4], [4, 3, 3]]) + + # 'dst' must be an array + assert_raises(TypeError, np.copyto, [1, 2, 3], [2, 3, 4]) + + +def test_copyto_cast_safety(): + with pytest.raises(TypeError): + np.copyto(np.arange(3), 3., casting="safe") + + # Can put integer and float scalars safely (and equiv): + np.copyto(np.arange(3), 3, casting="equiv") + np.copyto(np.arange(3.), 3., casting="equiv") + # And also with less precision safely: + np.copyto(np.arange(3, dtype="uint8"), 3, casting="safe") + np.copyto(np.arange(3., dtype="float32"), 3., casting="safe") + + # But not equiv: + with pytest.raises(TypeError): + np.copyto(np.arange(3, dtype="uint8"), 3, casting="equiv") + + with pytest.raises(TypeError): + np.copyto(np.arange(3., dtype="float32"), 3., casting="equiv") + + # As a special thing, object is equiv currently: + np.copyto(np.arange(3, dtype=object), 3, casting="equiv") + + # The following raises an overflow error/gives a warning but not + # type error (due to casting), though: + with pytest.raises(OverflowError): + np.copyto(np.arange(3), 2**80, casting="safe") + + with pytest.warns(RuntimeWarning): + np.copyto(np.arange(3, dtype=np.float32), 2e300, casting="safe") + + +def test_copyto_permut(): + # test explicit overflow case + pad = 500 + l = [True] * pad + [True, True, True, True] + r = np.zeros(len(l) - pad) + d = np.ones(len(l) - pad) + mask = np.array(l)[pad:] + np.copyto(r, d, where=mask[::-1]) + + # test all permutation of possible masks, 9 should be sufficient for + # current 4 byte unrolled code + power = 9 + d = np.ones(power) + for i in range(2**power): + r = np.zeros(power) + l = [(i & x) != 0 for x in range(power)] + mask = np.array(l) + np.copyto(r, d, where=mask) + assert_array_equal(r == 1, l) + assert_equal(r.sum(), sum(l)) + + r = np.zeros(power) + np.copyto(r, d, where=mask[::-1]) + assert_array_equal(r == 1, l[::-1]) + assert_equal(r.sum(), sum(l)) + + r = np.zeros(power) + np.copyto(r[::2], d[::2], where=mask[::2]) + assert_array_equal(r[::2] == 1, l[::2]) + assert_equal(r[::2].sum(), sum(l[::2])) + + r = np.zeros(power) + np.copyto(r[::2], d[::2], where=mask[::-2]) + assert_array_equal(r[::2] == 1, l[::-2]) + assert_equal(r[::2].sum(), sum(l[::-2])) + + for c in [0xFF, 0x7F, 0x02, 0x10]: + r = np.zeros(power) + mask = np.array(l) + imask = np.array(l).view(np.uint8) + imask[mask != 0] = c + np.copyto(r, d, where=mask) + assert_array_equal(r == 1, l) + assert_equal(r.sum(), sum(l)) + + r = np.zeros(power) + np.copyto(r, d, where=True) + assert_equal(r.sum(), r.size) + r = np.ones(power) + d = np.zeros(power) + np.copyto(r, d, where=False) + assert_equal(r.sum(), r.size) + +def test_copy_order(): + a = np.arange(24).reshape(2, 1, 3, 4) + b = a.copy(order='F') + c = np.arange(24).reshape(2, 1, 4, 3).swapaxes(2, 3) + + def check_copy_result(x, y, ccontig, fcontig, strides=False): + assert_(not (x is y)) + assert_equal(x, y) + assert_equal(res.flags.c_contiguous, ccontig) + assert_equal(res.flags.f_contiguous, fcontig) + + # Validate the initial state of a, b, and c + assert_(a.flags.c_contiguous) + assert_(not a.flags.f_contiguous) + assert_(not b.flags.c_contiguous) + assert_(b.flags.f_contiguous) + assert_(not c.flags.c_contiguous) + assert_(not c.flags.f_contiguous) + + # Copy with order='C' + res = a.copy(order='C') + check_copy_result(res, a, ccontig=True, fcontig=False, strides=True) + res = b.copy(order='C') + check_copy_result(res, b, ccontig=True, fcontig=False, strides=False) + res = c.copy(order='C') + check_copy_result(res, c, ccontig=True, fcontig=False, strides=False) + res = np.copy(a, order='C') + check_copy_result(res, a, ccontig=True, fcontig=False, strides=True) + res = np.copy(b, order='C') + check_copy_result(res, b, ccontig=True, fcontig=False, strides=False) + res = np.copy(c, order='C') + check_copy_result(res, c, ccontig=True, fcontig=False, strides=False) + + # Copy with order='F' + res = a.copy(order='F') + check_copy_result(res, a, ccontig=False, fcontig=True, strides=False) + res = b.copy(order='F') + check_copy_result(res, b, ccontig=False, fcontig=True, strides=True) + res = c.copy(order='F') + check_copy_result(res, c, ccontig=False, fcontig=True, strides=False) + res = np.copy(a, order='F') + check_copy_result(res, a, ccontig=False, fcontig=True, strides=False) + res = np.copy(b, order='F') + check_copy_result(res, b, ccontig=False, fcontig=True, strides=True) + res = np.copy(c, order='F') + check_copy_result(res, c, ccontig=False, fcontig=True, strides=False) + + # Copy with order='K' + res = a.copy(order='K') + check_copy_result(res, a, ccontig=True, fcontig=False, strides=True) + res = b.copy(order='K') + check_copy_result(res, b, ccontig=False, fcontig=True, strides=True) + res = c.copy(order='K') + check_copy_result(res, c, ccontig=False, fcontig=False, strides=True) + res = np.copy(a, order='K') + check_copy_result(res, a, ccontig=True, fcontig=False, strides=True) + res = np.copy(b, order='K') + check_copy_result(res, b, ccontig=False, fcontig=True, strides=True) + res = np.copy(c, order='K') + check_copy_result(res, c, ccontig=False, fcontig=False, strides=True) + +def test_contiguous_flags(): + a = np.ones((4, 4, 1))[::2, :, :] + a = stride_tricks.as_strided(a, strides=a.strides[:2] + (-123,)) + b = np.ones((2, 2, 1, 2, 2)).swapaxes(3, 4) + + def check_contig(a, ccontig, fcontig): + assert_(a.flags.c_contiguous == ccontig) + assert_(a.flags.f_contiguous == fcontig) + + # Check if new arrays are correct: + check_contig(a, False, False) + check_contig(b, False, False) + check_contig(np.empty((2, 2, 0, 2, 2)), True, True) + check_contig(np.array([[[1], [2]]], order='F'), True, True) + check_contig(np.empty((2, 2)), True, False) + check_contig(np.empty((2, 2), order='F'), False, True) + + # Check that np.array creates correct contiguous flags: + check_contig(np.array(a, copy=None), False, False) + check_contig(np.array(a, copy=None, order='C'), True, False) + check_contig(np.array(a, ndmin=4, copy=None, order='F'), False, True) + + # Check slicing update of flags and : + check_contig(a[0], True, True) + check_contig(a[None, ::4, ..., None], True, True) + check_contig(b[0, 0, ...], False, True) + check_contig(b[:, :, 0:0, :, :], True, True) + + # Test ravel and squeeze. + check_contig(a.ravel(), True, True) + check_contig(np.ones((1, 3, 1)).squeeze(), True, True) + +def test_broadcast_arrays(): + # Test user defined dtypes + dtype = 'u4,u4,u4' + a = np.array([(1, 2, 3)], dtype=dtype) + b = np.array([(1, 2, 3), (4, 5, 6), (7, 8, 9)], dtype=dtype) + result = np.broadcast_arrays(a, b) + assert_equal(result[0], np.array([(1, 2, 3), (1, 2, 3), (1, 2, 3)], dtype=dtype)) + assert_equal(result[1], np.array([(1, 2, 3), (4, 5, 6), (7, 8, 9)], dtype=dtype)) + +@pytest.mark.parametrize(["shape", "fill_value", "expected_output"], + [((2, 2), [5.0, 6.0], np.array([[5.0, 6.0], [5.0, 6.0]])), + ((3, 2), [1.0, 2.0], np.array([[1.0, 2.0], [1.0, 2.0], [1.0, 2.0]]))]) +def test_full_from_list(shape, fill_value, expected_output): + output = np.full(shape, fill_value) + assert_equal(output, expected_output) + +def test_astype_copyflag(): + # test the various copyflag options + arr = np.arange(10, dtype=np.intp) + + res_true = arr.astype(np.intp, copy=True) + assert not np.shares_memory(arr, res_true) + + res_false = arr.astype(np.intp, copy=False) + assert np.shares_memory(arr, res_false) + + res_false_float = arr.astype(np.float64, copy=False) + assert not np.shares_memory(arr, res_false_float) + + # _CopyMode enum isn't allowed + assert_raises(ValueError, arr.astype, np.float64, + copy=np._CopyMode.NEVER) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_argparse.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_argparse.py new file mode 100644 index 0000000000000000000000000000000000000000..ededced3b9fee9f8615ae49c6a8b8d38626154ae --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_argparse.py @@ -0,0 +1,90 @@ +""" +Tests for the private NumPy argument parsing functionality. +They mainly exists to ensure good test coverage without having to try the +weirder cases on actual numpy functions but test them in one place. + +The test function is defined in C to be equivalent to (errors may not always +match exactly, and could be adjusted): + + def func(arg1, /, arg2, *, arg3): + i = integer(arg1) # reproducing the 'i' parsing in Python. + return None +""" + +import threading + +import pytest + +import numpy as np +from numpy._core._multiarray_tests import ( + argparse_example_function as func, + threaded_argparse_example_function as thread_func, +) +from numpy.testing import IS_WASM + + +@pytest.mark.skipif(IS_WASM, reason="wasm doesn't have support for threads") +def test_thread_safe_argparse_cache(): + b = threading.Barrier(8) + + def call_thread_func(): + b.wait() + thread_func(arg1=3, arg2=None) + + tasks = [threading.Thread(target=call_thread_func) for _ in range(8)] + [t.start() for t in tasks] + [t.join() for t in tasks] + + +def test_invalid_integers(): + with pytest.raises(TypeError, + match="integer argument expected, got float"): + func(1.) + with pytest.raises(OverflowError): + func(2**100) + + +def test_missing_arguments(): + with pytest.raises(TypeError, + match="missing required positional argument 0"): + func() + with pytest.raises(TypeError, + match="missing required positional argument 0"): + func(arg2=1, arg3=4) + with pytest.raises(TypeError, + match=r"missing required argument \'arg2\' \(pos 1\)"): + func(1, arg3=5) + + +def test_too_many_positional(): + # the second argument is positional but can be passed as keyword. + with pytest.raises(TypeError, + match="takes from 2 to 3 positional arguments but 4 were given"): + func(1, 2, 3, 4) + + +def test_multiple_values(): + with pytest.raises(TypeError, + match=r"given by name \('arg2'\) and position \(position 1\)"): + func(1, 2, arg2=3) + + +def test_string_fallbacks(): + # We can (currently?) use numpy strings to test the "slow" fallbacks + # that should normally not be taken due to string interning. + arg2 = np.str_("arg2") + missing_arg = np.str_("missing_arg") + func(1, **{arg2: 3}) + with pytest.raises(TypeError, + match="got an unexpected keyword argument 'missing_arg'"): + func(2, **{missing_arg: 3}) + + +def test_too_many_arguments_method_forwarding(): + # Not directly related to the standard argument parsing, but we sometimes + # forward methods to Python: arr.mean() calls np._core._methods._mean() + # This adds code coverage for this `npy_forward_method`. + arr = np.arange(3) + args = range(1000) + with pytest.raises(TypeError): + arr.mean(*args) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_array_api_info.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_array_api_info.py new file mode 100644 index 0000000000000000000000000000000000000000..4842dbfa9486c1519d78980a84f9686baf104552 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_array_api_info.py @@ -0,0 +1,113 @@ +import pytest + +import numpy as np + +info = np.__array_namespace_info__() + + +def test_capabilities(): + caps = info.capabilities() + assert caps["boolean indexing"] is True + assert caps["data-dependent shapes"] is True + + # This will be added in the 2024.12 release of the array API standard. + + # assert caps["max rank"] == 64 + # np.zeros((1,)*64) + # with pytest.raises(ValueError): + # np.zeros((1,)*65) + + +def test_default_device(): + assert info.default_device() == "cpu" == np.asarray(0).device + + +def test_default_dtypes(): + dtypes = info.default_dtypes() + assert dtypes["real floating"] == np.float64 == np.asarray(0.0).dtype + assert dtypes["complex floating"] == np.complex128 == \ + np.asarray(0.0j).dtype + assert dtypes["integral"] == np.intp == np.asarray(0).dtype + assert dtypes["indexing"] == np.intp == np.argmax(np.zeros(10)).dtype + + with pytest.raises(ValueError, match="Device not understood"): + info.default_dtypes(device="gpu") + + +def test_dtypes_all(): + dtypes = info.dtypes() + assert dtypes == { + "bool": np.bool_, + "int8": np.int8, + "int16": np.int16, + "int32": np.int32, + "int64": np.int64, + "uint8": np.uint8, + "uint16": np.uint16, + "uint32": np.uint32, + "uint64": np.uint64, + "float32": np.float32, + "float64": np.float64, + "complex64": np.complex64, + "complex128": np.complex128, + } + + +dtype_categories = { + "bool": {"bool": np.bool_}, + "signed integer": { + "int8": np.int8, + "int16": np.int16, + "int32": np.int32, + "int64": np.int64, + }, + "unsigned integer": { + "uint8": np.uint8, + "uint16": np.uint16, + "uint32": np.uint32, + "uint64": np.uint64, + }, + "integral": ("signed integer", "unsigned integer"), + "real floating": {"float32": np.float32, "float64": np.float64}, + "complex floating": {"complex64": np.complex64, "complex128": + np.complex128}, + "numeric": ("integral", "real floating", "complex floating"), +} + + +@pytest.mark.parametrize("kind", dtype_categories) +def test_dtypes_kind(kind): + expected = dtype_categories[kind] + if isinstance(expected, tuple): + assert info.dtypes(kind=kind) == info.dtypes(kind=expected) + else: + assert info.dtypes(kind=kind) == expected + + +def test_dtypes_tuple(): + dtypes = info.dtypes(kind=("bool", "integral")) + assert dtypes == { + "bool": np.bool_, + "int8": np.int8, + "int16": np.int16, + "int32": np.int32, + "int64": np.int64, + "uint8": np.uint8, + "uint16": np.uint16, + "uint32": np.uint32, + "uint64": np.uint64, + } + + +def test_dtypes_invalid_kind(): + with pytest.raises(ValueError, match="unsupported kind"): + info.dtypes(kind="invalid") + + +def test_dtypes_invalid_device(): + with pytest.raises(ValueError, match="Device not understood"): + info.dtypes(device="gpu") + + +def test_devices(): + assert info.devices() == ["cpu"] diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_array_coercion.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_array_coercion.py new file mode 100644 index 0000000000000000000000000000000000000000..ba28e886282f2c7b63058bb60543a88a8ca19f1b --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_array_coercion.py @@ -0,0 +1,928 @@ +""" +Tests for array coercion, mainly through testing `np.array` results directly. +Note that other such tests exist, e.g., in `test_api.py` and many corner-cases +are tested (sometimes indirectly) elsewhere. +""" + +from itertools import permutations, product + +import pytest +from pytest import param + +import numpy as np +import numpy._core._multiarray_umath as ncu +from numpy._core._rational_tests import rational +from numpy.testing import IS_64BIT, IS_PYPY, assert_array_equal + + +def arraylikes(): + """ + Generator for functions converting an array into various array-likes. + If full is True (default) it includes array-likes not capable of handling + all dtypes. + """ + # base array: + def ndarray(a): + return a + + yield param(ndarray, id="ndarray") + + # subclass: + class MyArr(np.ndarray): + pass + + def subclass(a): + return a.view(MyArr) + + yield subclass + + class _SequenceLike: + # Older NumPy versions, sometimes cared whether a protocol array was + # also _SequenceLike. This shouldn't matter, but keep it for now + # for __array__ and not the others. + def __len__(self): + raise TypeError + + def __getitem__(self, _, /): + raise TypeError + + # Array-interface + class ArrayDunder(_SequenceLike): + def __init__(self, a): + self.a = a + + def __array__(self, dtype=None, copy=None): + if dtype is None: + return self.a + return self.a.astype(dtype) + + yield param(ArrayDunder, id="__array__") + + # memory-view + yield param(memoryview, id="memoryview") + + # Array-interface + class ArrayInterface: + def __init__(self, a): + self.a = a # need to hold on to keep interface valid + self.__array_interface__ = a.__array_interface__ + + yield param(ArrayInterface, id="__array_interface__") + + # Array-Struct + class ArrayStruct: + def __init__(self, a): + self.a = a # need to hold on to keep struct valid + self.__array_struct__ = a.__array_struct__ + + yield param(ArrayStruct, id="__array_struct__") + + +def scalar_instances(times=True, extended_precision=True, user_dtype=True): + # Hard-coded list of scalar instances. + # Floats: + yield param(np.sqrt(np.float16(5)), id="float16") + yield param(np.sqrt(np.float32(5)), id="float32") + yield param(np.sqrt(np.float64(5)), id="float64") + if extended_precision: + yield param(np.sqrt(np.longdouble(5)), id="longdouble") + + # Complex: + yield param(np.sqrt(np.complex64(2 + 3j)), id="complex64") + yield param(np.sqrt(np.complex128(2 + 3j)), id="complex128") + if extended_precision: + yield param(np.sqrt(np.clongdouble(2 + 3j)), id="clongdouble") + + # Bool: + # XFAIL: Bool should be added, but has some bad properties when it + # comes to strings, see also gh-9875 + # yield param(np.bool(0), id="bool") + + # Integers: + yield param(np.int8(2), id="int8") + yield param(np.int16(2), id="int16") + yield param(np.int32(2), id="int32") + yield param(np.int64(2), id="int64") + + yield param(np.uint8(2), id="uint8") + yield param(np.uint16(2), id="uint16") + yield param(np.uint32(2), id="uint32") + yield param(np.uint64(2), id="uint64") + + # Rational: + if user_dtype: + yield param(rational(1, 2), id="rational") + + # Cannot create a structured void scalar directly: + structured = np.array([(1, 3)], "i,i")[0] + assert isinstance(structured, np.void) + assert structured.dtype == np.dtype("i,i") + yield param(structured, id="structured") + + if times: + # Datetimes and timedelta + yield param(np.timedelta64(2), id="timedelta64[generic]") + yield param(np.timedelta64(23, "s"), id="timedelta64[s]") + yield param(np.timedelta64("NaT", "s"), id="timedelta64[s](NaT)") + + yield param(np.datetime64("NaT"), id="datetime64[generic](NaT)") + yield param(np.datetime64("2020-06-07 12:43", "ms"), id="datetime64[ms]") + + # Strings and unstructured void: + yield param(np.bytes_(b"1234"), id="bytes") + yield param(np.str_("2345"), id="unicode") + yield param(np.void(b"4321"), id="unstructured_void") + + +def is_parametric_dtype(dtype): + """Returns True if the dtype is a parametric legacy dtype (itemsize + is 0, or a datetime without units) + """ + if dtype.itemsize == 0: + return True + if issubclass(dtype.type, (np.datetime64, np.timedelta64)): + if dtype.name.endswith("64"): + # Generic time units + return True + return False + + +class TestStringDiscovery: + @pytest.mark.parametrize("obj", + [object(), 1.2, 10**43, None, "string"], + ids=["object", "1.2", "10**43", "None", "string"]) + def test_basic_stringlength(self, obj): + length = len(str(obj)) + expected = np.dtype(f"S{length}") + + assert np.array(obj, dtype="S").dtype == expected + assert np.array([obj], dtype="S").dtype == expected + + # A nested array is also discovered correctly + arr = np.array(obj, dtype="O") + assert np.array(arr, dtype="S").dtype == expected + # Also if we use the dtype class + assert np.array(arr, dtype=type(expected)).dtype == expected + # Check that .astype() behaves identical + assert arr.astype("S").dtype == expected + # The DType class is accepted by `.astype()` + assert arr.astype(type(np.dtype("S"))).dtype == expected + + @pytest.mark.parametrize("obj", + [object(), 1.2, 10**43, None, "string"], + ids=["object", "1.2", "10**43", "None", "string"]) + def test_nested_arrays_stringlength(self, obj): + length = len(str(obj)) + expected = np.dtype(f"S{length}") + arr = np.array(obj, dtype="O") + assert np.array([arr, arr], dtype="S").dtype == expected + + @pytest.mark.parametrize("arraylike", arraylikes()) + def test_unpack_first_level(self, arraylike): + # We unpack exactly one level of array likes + obj = np.array([None]) + obj[0] = np.array(1.2) + # the length of the included item, not of the float dtype + length = len(str(obj[0])) + expected = np.dtype(f"S{length}") + + obj = arraylike(obj) + # casting to string usually calls str(obj) + arr = np.array([obj], dtype="S") + assert arr.shape == (1, 1) + assert arr.dtype == expected + + +class TestScalarDiscovery: + def test_void_special_case(self): + # Void dtypes with structures discover tuples as elements + arr = np.array((1, 2, 3), dtype="i,i,i") + assert arr.shape == () + arr = np.array([(1, 2, 3)], dtype="i,i,i") + assert arr.shape == (1,) + + def test_char_special_case(self): + arr = np.array("string", dtype="c") + assert arr.shape == (6,) + assert arr.dtype.char == "c" + arr = np.array(["string"], dtype="c") + assert arr.shape == (1, 6) + assert arr.dtype.char == "c" + + def test_char_special_case_deep(self): + # Check that the character special case errors correctly if the + # array is too deep: + nested = ["string"] # 2 dimensions (due to string being sequence) + for i in range(ncu.MAXDIMS - 2): + nested = [nested] + + arr = np.array(nested, dtype='c') + assert arr.shape == (1,) * (ncu.MAXDIMS - 1) + (6,) + with pytest.raises(ValueError): + np.array([nested], dtype="c") + + def test_unknown_object(self): + arr = np.array(object()) + assert arr.shape == () + assert arr.dtype == np.dtype("O") + + @pytest.mark.parametrize("scalar", scalar_instances()) + def test_scalar(self, scalar): + arr = np.array(scalar) + assert arr.shape == () + assert arr.dtype == scalar.dtype + + arr = np.array([[scalar, scalar]]) + assert arr.shape == (1, 2) + assert arr.dtype == scalar.dtype + + # Additionally to string this test also runs into a corner case + # with datetime promotion (the difference is the promotion order). + @pytest.mark.filterwarnings("ignore:Promotion of numbers:FutureWarning") + def test_scalar_promotion(self): + for sc1, sc2 in product(scalar_instances(), scalar_instances()): + sc1, sc2 = sc1.values[0], sc2.values[0] + # test all combinations: + try: + arr = np.array([sc1, sc2]) + except (TypeError, ValueError): + # The promotion between two times can fail + # XFAIL (ValueError): Some object casts are currently undefined + continue + assert arr.shape == (2,) + try: + dt1, dt2 = sc1.dtype, sc2.dtype + expected_dtype = np.promote_types(dt1, dt2) + assert arr.dtype == expected_dtype + except TypeError as e: + # Will currently always go to object dtype + assert arr.dtype == np.dtype("O") + + @pytest.mark.parametrize("scalar", scalar_instances()) + def test_scalar_coercion(self, scalar): + # This tests various scalar coercion paths, mainly for the numerical + # types. It includes some paths not directly related to `np.array`. + if isinstance(scalar, np.inexact): + # Ensure we have a full-precision number if available + scalar = type(scalar)((scalar * 2)**0.5) + + # Use casting from object: + arr = np.array(scalar, dtype=object).astype(scalar.dtype) + + # Test various ways to create an array containing this scalar: + arr1 = np.array(scalar).reshape(1) + arr2 = np.array([scalar]) + arr3 = np.empty(1, dtype=scalar.dtype) + arr3[0] = scalar + arr4 = np.empty(1, dtype=scalar.dtype) + arr4[:] = [scalar] + # All of these methods should yield the same results + assert_array_equal(arr, arr1) + assert_array_equal(arr, arr2) + assert_array_equal(arr, arr3) + assert_array_equal(arr, arr4) + + @pytest.mark.xfail(IS_PYPY, reason="`int(np.complex128(3))` fails on PyPy") + @pytest.mark.filterwarnings("ignore::numpy.exceptions.ComplexWarning") + @pytest.mark.parametrize("cast_to", scalar_instances()) + def test_scalar_coercion_same_as_cast_and_assignment(self, cast_to): + """ + Test that in most cases: + * `np.array(scalar, dtype=dtype)` + * `np.empty((), dtype=dtype)[()] = scalar` + * `np.array(scalar).astype(dtype)` + should behave the same. The only exceptions are parametric dtypes + (mainly datetime/timedelta without unit) and void without fields. + """ + dtype = cast_to.dtype # use to parametrize only the target dtype + + for scalar in scalar_instances(times=False): + scalar = scalar.values[0] + + if dtype.type == np.void: + if scalar.dtype.fields is not None and dtype.fields is None: + # Here, coercion to "V6" works, but the cast fails. + # Since the types are identical, SETITEM takes care of + # this, but has different rules than the cast. + with pytest.raises(TypeError): + np.array(scalar).astype(dtype) + np.array(scalar, dtype=dtype) + np.array([scalar], dtype=dtype) + continue + + # The main test, we first try to use casting and if it succeeds + # continue below testing that things are the same, otherwise + # test that the alternative paths at least also fail. + try: + cast = np.array(scalar).astype(dtype) + except (TypeError, ValueError, RuntimeError): + # coercion should also raise (error type may change) + with pytest.raises(Exception): # noqa: B017 + np.array(scalar, dtype=dtype) + + if (isinstance(scalar, rational) and + np.issubdtype(dtype, np.signedinteger)): + return + + with pytest.raises(Exception): # noqa: B017 + np.array([scalar], dtype=dtype) + # assignment should also raise + res = np.zeros((), dtype=dtype) + with pytest.raises(Exception): # noqa: B017 + res[()] = scalar + + return + + # Non error path: + arr = np.array(scalar, dtype=dtype) + assert_array_equal(arr, cast) + # assignment behaves the same + ass = np.zeros((), dtype=dtype) + ass[()] = scalar + assert_array_equal(ass, cast) + + @pytest.mark.parametrize("pyscalar", [10, 10.32, 10.14j, 10**100]) + def test_pyscalar_subclasses(self, pyscalar): + """NumPy arrays are read/write which means that anything but invariant + behaviour is on thin ice. However, we currently are happy to discover + subclasses of Python float, int, complex the same as the base classes. + This should potentially be deprecated. + """ + class MyScalar(type(pyscalar)): + pass + + res = np.array(MyScalar(pyscalar)) + expected = np.array(pyscalar) + assert_array_equal(res, expected) + + @pytest.mark.parametrize("dtype_char", np.typecodes["All"]) + def test_default_dtype_instance(self, dtype_char): + if dtype_char in "SU": + dtype = np.dtype(dtype_char + "1") + elif dtype_char == "V": + # Legacy behaviour was to use V8. The reason was float64 being the + # default dtype and that having 8 bytes. + dtype = np.dtype("V8") + else: + dtype = np.dtype(dtype_char) + + discovered_dtype, _ = ncu._discover_array_parameters([], type(dtype)) + + assert discovered_dtype == dtype + assert discovered_dtype.itemsize == dtype.itemsize + + @pytest.mark.parametrize("dtype", np.typecodes["Integer"]) + @pytest.mark.parametrize(["scalar", "error"], + [(np.float64(np.nan), ValueError), + (np.array(-1).astype(np.ulonglong)[()], OverflowError)]) + def test_scalar_to_int_coerce_does_not_cast(self, dtype, scalar, error): + """ + Signed integers are currently different in that they do not cast other + NumPy scalar, but instead use scalar.__int__(). The hardcoded + exception to this rule is `np.array(scalar, dtype=integer)`. + """ + dtype = np.dtype(dtype) + + # This is a special case using casting logic. It warns for the NaN + # but allows the cast (giving undefined behaviour). + with np.errstate(invalid="ignore"): + coerced = np.array(scalar, dtype=dtype) + cast = np.array(scalar).astype(dtype) + assert_array_equal(coerced, cast) + + # However these fail: + with pytest.raises(error): + np.array([scalar], dtype=dtype) + with pytest.raises(error): + cast[()] = scalar + + +class TestTimeScalars: + @pytest.mark.parametrize("dtype", [np.int64, np.float32]) + @pytest.mark.parametrize("scalar", + [param(np.timedelta64("NaT", "s"), id="timedelta64[s](NaT)"), + param(np.timedelta64(123, "s"), id="timedelta64[s]"), + param(np.datetime64("NaT", "generic"), id="datetime64[generic](NaT)"), + param(np.datetime64(1, "D"), id="datetime64[D]")],) + def test_coercion_basic(self, dtype, scalar): + # Note the `[scalar]` is there because np.array(scalar) uses stricter + # `scalar.__int__()` rules for backward compatibility right now. + arr = np.array(scalar, dtype=dtype) + cast = np.array(scalar).astype(dtype) + assert_array_equal(arr, cast) + + ass = np.ones((), dtype=dtype) + if issubclass(dtype, np.integer): + with pytest.raises(TypeError): + # raises, as would np.array([scalar], dtype=dtype), this is + # conversion from times, but behaviour of integers. + ass[()] = scalar + else: + ass[()] = scalar + assert_array_equal(ass, cast) + + @pytest.mark.parametrize("dtype", [np.int64, np.float32]) + @pytest.mark.parametrize("scalar", + [param(np.timedelta64(123, "ns"), id="timedelta64[ns]"), + param(np.timedelta64(12, "generic"), id="timedelta64[generic]")]) + def test_coercion_timedelta_convert_to_number(self, dtype, scalar): + # Only "ns" and "generic" timedeltas can be converted to numbers + # so these are slightly special. + arr = np.array(scalar, dtype=dtype) + cast = np.array(scalar).astype(dtype) + ass = np.ones((), dtype=dtype) + ass[()] = scalar # raises, as would np.array([scalar], dtype=dtype) + + assert_array_equal(arr, cast) + assert_array_equal(cast, cast) + + @pytest.mark.parametrize("dtype", ["S6", "U6"]) + @pytest.mark.parametrize(["val", "unit"], + [param(123, "s", id="[s]"), param(123, "D", id="[D]")]) + def test_coercion_assignment_datetime(self, val, unit, dtype): + # String from datetime64 assignment is currently special cased to + # never use casting. This is because casting will error in this + # case, and traditionally in most cases the behaviour is maintained + # like this. (`np.array(scalar, dtype="U6")` would have failed before) + # TODO: This discrepancy _should_ be resolved, either by relaxing the + # cast, or by deprecating the first part. + scalar = np.datetime64(val, unit) + dtype = np.dtype(dtype) + cut_string = dtype.type(str(scalar)[:6]) + + arr = np.array(scalar, dtype=dtype) + assert arr[()] == cut_string + ass = np.ones((), dtype=dtype) + ass[()] = scalar + assert ass[()] == cut_string + + with pytest.raises(RuntimeError): + # However, unlike the above assignment using `str(scalar)[:6]` + # due to being handled by the string DType and not be casting + # the explicit cast fails: + np.array(scalar).astype(dtype) + + @pytest.mark.parametrize(["val", "unit"], + [param(123, "s", id="[s]"), param(123, "D", id="[D]")]) + def test_coercion_assignment_timedelta(self, val, unit): + scalar = np.timedelta64(val, unit) + + # Unlike datetime64, timedelta allows the unsafe cast: + np.array(scalar, dtype="S6") + cast = np.array(scalar).astype("S6") + ass = np.ones((), dtype="S6") + ass[()] = scalar + expected = scalar.astype("S")[:6] + assert cast[()] == expected + assert ass[()] == expected + +class TestNested: + def test_nested_simple(self): + initial = [1.2] + nested = initial + for i in range(ncu.MAXDIMS - 1): + nested = [nested] + + arr = np.array(nested, dtype="float64") + assert arr.shape == (1,) * ncu.MAXDIMS + with pytest.raises(ValueError): + np.array([nested], dtype="float64") + + with pytest.raises(ValueError, match=".*would exceed the maximum"): + np.array([nested]) # user must ask for `object` explicitly + + arr = np.array([nested], dtype=object) + assert arr.dtype == np.dtype("O") + assert arr.shape == (1,) * ncu.MAXDIMS + assert arr.item() is initial + + def test_pathological_self_containing(self): + # Test that this also works for two nested sequences + l = [] + l.append(l) + arr = np.array([l, l, l], dtype=object) + assert arr.shape == (3,) + (1,) * (ncu.MAXDIMS - 1) + + # Also check a ragged case: + arr = np.array([l, [None], l], dtype=object) + assert arr.shape == (3, 1) + + @pytest.mark.parametrize("arraylike", arraylikes()) + def test_nested_arraylikes(self, arraylike): + # We try storing an array like into an array, but the array-like + # will have too many dimensions. This means the shape discovery + # decides that the array-like must be treated as an object (a special + # case of ragged discovery). The result will be an array with one + # dimension less than the maximum dimensions, and the array being + # assigned to it (which does work for object or if `float(arraylike)` + # works). + initial = arraylike(np.ones((1, 1))) + + nested = initial + for i in range(ncu.MAXDIMS - 1): + nested = [nested] + + with pytest.raises(ValueError, match=".*would exceed the maximum"): + # It will refuse to assign the array into + np.array(nested, dtype="float64") + + # If this is object, we end up assigning a (1, 1) array into (1,) + # (due to running out of dimensions), this is currently supported but + # a special case which is not ideal. + arr = np.array(nested, dtype=object) + assert arr.shape == (1,) * ncu.MAXDIMS + assert arr.item() == np.array(initial).item() + + @pytest.mark.parametrize("arraylike", arraylikes()) + def test_uneven_depth_ragged(self, arraylike): + arr = np.arange(4).reshape((2, 2)) + arr = arraylike(arr) + + # Array is ragged in the second dimension already: + out = np.array([arr, [arr]], dtype=object) + assert out.shape == (2,) + assert out[0] is arr + assert type(out[1]) is list + + # Array is ragged in the third dimension: + with pytest.raises(ValueError): + # This is a broadcast error during assignment, because + # the array shape would be (2, 2, 2) but `arr[0, 0] = arr` fails. + np.array([arr, [arr, arr]], dtype=object) + + def test_empty_sequence(self): + arr = np.array([[], [1], [[1]]], dtype=object) + assert arr.shape == (3,) + + # The empty sequence stops further dimension discovery, so the + # result shape will be (0,) which leads to an error during: + with pytest.raises(ValueError): + np.array([[], np.empty((0, 1))], dtype=object) + + def test_array_of_different_depths(self): + # When multiple arrays (or array-likes) are included in a + # sequences and have different depth, we currently discover + # as many dimensions as they share. (see also gh-17224) + arr = np.zeros((3, 2)) + mismatch_first_dim = np.zeros((1, 2)) + mismatch_second_dim = np.zeros((3, 3)) + + dtype, shape = ncu._discover_array_parameters( + [arr, mismatch_second_dim], dtype=np.dtype("O")) + assert shape == (2, 3) + + dtype, shape = ncu._discover_array_parameters( + [arr, mismatch_first_dim], dtype=np.dtype("O")) + assert shape == (2,) + # The second case is currently supported because the arrays + # can be stored as objects: + res = np.asarray([arr, mismatch_first_dim], dtype=np.dtype("O")) + assert res[0] is arr + assert res[1] is mismatch_first_dim + + +class TestBadSequences: + # These are tests for bad objects passed into `np.array`, in general + # these have undefined behaviour. In the old code they partially worked + # when now they will fail. We could (and maybe should) create a copy + # of all sequences to be safe against bad-actors. + + def test_growing_list(self): + # List to coerce, `mylist` will append to it during coercion + obj = [] + + class mylist(list): + def __len__(self): + obj.append([1, 2]) + return super().__len__() + + obj.append(mylist([1, 2])) + + with pytest.raises(RuntimeError): + np.array(obj) + + # Note: We do not test a shrinking list. These do very evil things + # and the only way to fix them would be to copy all sequences. + # (which may be a real option in the future). + + def test_mutated_list(self): + # List to coerce, `mylist` will mutate the first element + obj = [] + + class mylist(list): + def __len__(self): + obj[0] = [2, 3] # replace with a different list. + return super().__len__() + + obj.append([2, 3]) + obj.append(mylist([1, 2])) + # Does not crash: + np.array(obj) + + def test_replace_0d_array(self): + # List to coerce, `mylist` will mutate the first element + obj = [] + + class baditem: + def __len__(self): + obj[0][0] = 2 # replace with a different list. + raise ValueError("not actually a sequence!") + + def __getitem__(self, _, /): + pass + + # Runs into a corner case in the new code, the `array(2)` is cached + # so replacing it invalidates the cache. + obj.append([np.array(2), baditem()]) + with pytest.raises(RuntimeError): + np.array(obj) + + +class TestArrayLikes: + @pytest.mark.parametrize("arraylike", arraylikes()) + def test_0d_object_special_case(self, arraylike): + arr = np.array(0.) + obj = arraylike(arr) + # A single array-like is always converted: + res = np.array(obj, dtype=object) + assert_array_equal(arr, res) + + # But a single 0-D nested array-like never: + res = np.array([obj], dtype=object) + assert res[0] is obj + + @pytest.mark.parametrize("arraylike", arraylikes()) + @pytest.mark.parametrize("arr", [np.array(0.), np.arange(4)]) + def test_object_assignment_special_case(self, arraylike, arr): + obj = arraylike(arr) + empty = np.arange(1, dtype=object) + empty[:] = [obj] + assert empty[0] is obj + + def test_0d_generic_special_case(self): + class ArraySubclass(np.ndarray): + def __float__(self): + raise TypeError("e.g. quantities raise on this") + + arr = np.array(0.) + obj = arr.view(ArraySubclass) + res = np.array(obj) + # The subclass is simply cast: + assert_array_equal(arr, res) + + # If the 0-D array-like is included, __float__ is currently + # guaranteed to be used. We may want to change that, quantities + # and masked arrays half make use of this. + with pytest.raises(TypeError): + np.array([obj]) + + # The same holds for memoryview: + obj = memoryview(arr) + res = np.array(obj) + assert_array_equal(arr, res) + with pytest.raises(ValueError): + # The error type does not matter much here. + np.array([obj]) + + def test_arraylike_classes(self): + # The classes of array-likes should generally be acceptable to be + # stored inside a numpy (object) array. This tests all of the + # special attributes (since all are checked during coercion). + arr = np.array(np.int64) + assert arr[()] is np.int64 + arr = np.array([np.int64]) + assert arr[0] is np.int64 + + # This also works for properties/unbound methods: + class ArrayLike: + @property + def __array_interface__(self): + pass + + @property + def __array_struct__(self): + pass + + def __array__(self, dtype=None, copy=None): + pass + + arr = np.array(ArrayLike) + assert arr[()] is ArrayLike + arr = np.array([ArrayLike]) + assert arr[0] is ArrayLike + + @pytest.mark.skipif(not IS_64BIT, reason="Needs 64bit platform") + @pytest.mark.thread_unsafe(reason="large slow test in parallel") + def test_too_large_array_error_paths(self): + """Test the error paths, including for memory leaks""" + arr = np.array(0, dtype="uint8") + # Guarantees that a contiguous copy won't work: + arr = np.broadcast_to(arr, 2**62) + + for i in range(5): + # repeat, to ensure caching cannot have an effect: + with pytest.raises(MemoryError): + np.array(arr) + with pytest.raises(MemoryError): + np.array([arr]) + + @pytest.mark.parametrize("attribute", + ["__array_interface__", "__array__", "__array_struct__"]) + @pytest.mark.parametrize("error", [RecursionError, MemoryError]) + def test_bad_array_like_attributes(self, attribute, error): + # RecursionError and MemoryError are considered fatal. All errors + # (except AttributeError) should probably be raised in the future, + # but shapely made use of it, so it will require a deprecation. + + class BadInterface: + def __getattr__(self, attr): + if attr == attribute: + raise error + super().__getattr__(attr) + + with pytest.raises(error): + np.array(BadInterface()) + + @pytest.mark.parametrize("error", [RecursionError, MemoryError]) + def test_bad_array_like_bad_length(self, error): + # RecursionError and MemoryError are considered "critical" in + # sequences. We could expand this more generally though. (NumPy 1.20) + class BadSequence: + def __len__(self): + raise error + + def __getitem__(self, _, /): + # must have getitem to be a Sequence + return 1 + + with pytest.raises(error): + np.array(BadSequence()) + + def test_array_interface_descr_optional(self): + # The descr should be optional regression test for gh-27249 + arr = np.ones(10, dtype="V10") + iface = arr.__array_interface__ + iface.pop("descr") + + class MyClass: + __array_interface__ = iface + + assert_array_equal(np.asarray(MyClass), arr) + + +class TestAsArray: + """Test expected behaviors of ``asarray``.""" + + def test_dtype_identity(self): + """Confirm the intended behavior for *dtype* kwarg. + + The result of ``asarray()`` should have the dtype provided through the + keyword argument, when used. This forces unique array handles to be + produced for unique np.dtype objects, but (for equivalent dtypes), the + underlying data (the base object) is shared with the original array + object. + + Ref https://github.com/numpy/numpy/issues/1468 + """ + int_array = np.array([1, 2, 3], dtype='i') + assert np.asarray(int_array) is int_array + + # The character code resolves to the singleton dtype object provided + # by the numpy package. + assert np.asarray(int_array, dtype='i') is int_array + + # Derive a dtype from n.dtype('i'), but add a metadata object to force + # the dtype to be distinct. + unequal_type = np.dtype('i', metadata={'spam': True}) + annotated_int_array = np.asarray(int_array, dtype=unequal_type) + assert annotated_int_array is not int_array + assert annotated_int_array.base is int_array + # Create an equivalent descriptor with a new and distinct dtype + # instance. + equivalent_requirement = np.dtype('i', metadata={'spam': True}) + annotated_int_array_alt = np.asarray(annotated_int_array, + dtype=equivalent_requirement) + assert unequal_type == equivalent_requirement + assert unequal_type is not equivalent_requirement + assert annotated_int_array_alt is not annotated_int_array + assert annotated_int_array_alt.dtype is equivalent_requirement + + # Check the same logic for a pair of C types whose equivalence may vary + # between computing environments. + # Find an equivalent pair. + integer_type_codes = ('i', 'l', 'q') + integer_dtypes = [np.dtype(code) for code in integer_type_codes] + typeA = None + typeB = None + for typeA, typeB in permutations(integer_dtypes, r=2): + if typeA == typeB: + assert typeA is not typeB + break + assert isinstance(typeA, np.dtype) and isinstance(typeB, np.dtype) + + # These ``asarray()`` calls may produce a new view or a copy, + # but never the same object. + long_int_array = np.asarray(int_array, dtype='l') + long_long_int_array = np.asarray(int_array, dtype='q') + assert long_int_array is not int_array + assert long_long_int_array is not int_array + assert np.asarray(long_int_array, dtype='q') is not long_int_array + array_a = np.asarray(int_array, dtype=typeA) + assert typeA == typeB + assert typeA is not typeB + assert array_a.dtype is typeA + assert array_a is not np.asarray(array_a, dtype=typeB) + assert np.asarray(array_a, dtype=typeB).dtype is typeB + assert array_a is np.asarray(array_a, dtype=typeB).base + + +class TestSpecialAttributeLookupFailure: + # An exception was raised while fetching the attribute + + class WeirdArrayLike: + @property + def __array__(self, dtype=None, copy=None): # noqa: PLR0206 + raise RuntimeError("oops!") + + class WeirdArrayInterface: + @property + def __array_interface__(self): + raise RuntimeError("oops!") + + def test_deprecated(self): + with pytest.raises(RuntimeError): + np.array(self.WeirdArrayLike()) + with pytest.raises(RuntimeError): + np.array(self.WeirdArrayInterface()) + + +def test_subarray_from_array_construction(): + # Arrays are more complex, since they "broadcast" on success: + arr = np.array([1, 2]) + + res = arr.astype("2i") + assert_array_equal(res, [[1, 1], [2, 2]]) + + res = np.array(arr, dtype="(2,)i") + + assert_array_equal(res, [[1, 1], [2, 2]]) + + res = np.array([[(1,), (2,)], arr], dtype="2i") + assert_array_equal(res, [[[1, 1], [2, 2]], [[1, 1], [2, 2]]]) + + # Also try a multi-dimensional example: + arr = np.arange(5 * 2).reshape(5, 2) + expected = np.broadcast_to(arr[:, :, np.newaxis, np.newaxis], (5, 2, 2, 2)) + + res = arr.astype("(2,2)f") + assert_array_equal(res, expected) + + res = np.array(arr, dtype="(2,2)f") + assert_array_equal(res, expected) + + +def test_empty_string(): + # Empty strings are unfortunately often converted to S1 and we need to + # make sure we are filling the S1 and not the (possibly) detected S0 + # result. This should likely just return S0 and if not maybe the decision + # to return S1 should be moved. + res = np.array([""] * 10, dtype="S") + assert_array_equal(res, np.array("\0", "S1")) + assert res.dtype == "S1" + + arr = np.array([""] * 10, dtype=object) + + res = arr.astype("S") + assert_array_equal(res, b"") + assert res.dtype == "S1" + + res = np.array(arr, dtype="S") + assert_array_equal(res, b"") + # TODO: This is arguably weird/wrong, but seems old: + assert res.dtype == f"S{np.dtype('O').itemsize}" + + res = np.array([[""] * 10, arr], dtype="S") + assert_array_equal(res, b"") + assert res.shape == (2, 10) + assert res.dtype == "S1" + + +@pytest.mark.parametrize("dtype", ["S", "U", object]) +@pytest.mark.parametrize("res_dt,hug_val", + [("float16", "1e30"), ("float32", "1e200")]) +def test_string_to_float_coercion_errors(dtype, res_dt, hug_val): + # This test primarly tests setitem + val = np.array(["3M"], dtype=dtype)[0] # use the scalar + + with pytest.raises(ValueError): + np.array(val, dtype=res_dt) + + val = np.array([hug_val], dtype=dtype)[0] # use the scalar + + with np.errstate(all="warn"): + with pytest.warns(RuntimeWarning): + np.array(val, dtype=res_dt) + + with np.errstate(all="raise"): + with pytest.raises(FloatingPointError): + np.array(val, dtype=res_dt) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_array_interface.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_array_interface.py new file mode 100644 index 0000000000000000000000000000000000000000..afb19f4e280fb2b228f6f6e5eac4a10f02412e94 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_array_interface.py @@ -0,0 +1,222 @@ +import sys +import sysconfig + +import pytest + +import numpy as np +from numpy.testing import IS_EDITABLE, IS_WASM, extbuild + + +@pytest.fixture +def get_module(tmp_path): + """ Some codes to generate data and manage temporary buffers use when + sharing with numpy via the array interface protocol. + """ + if sys.platform.startswith('cygwin'): + pytest.skip('link fails on cygwin') + if IS_WASM: + pytest.skip("Can't build module inside Wasm") + if IS_EDITABLE: + pytest.skip("Can't build module for editable install") + + prologue = ''' + #include + #define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION + #include + #include + #include + + NPY_NO_EXPORT + void delete_array_struct(PyObject *cap) { + + /* get the array interface structure */ + PyArrayInterface *inter = (PyArrayInterface*) + PyCapsule_GetPointer(cap, NULL); + + /* get the buffer by which data was shared */ + double *ptr = (double*)PyCapsule_GetContext(cap); + + /* for the purposes of the regression test set the elements + to nan */ + for (npy_intp i = 0; i < inter->shape[0]; ++i) + ptr[i] = nan(""); + + /* free the shared buffer */ + free(ptr); + + /* free the array interface structure */ + free(inter->shape); + free(inter); + + fprintf(stderr, "delete_array_struct\\ncap = %ld inter = %ld" + " ptr = %ld\\n", (long)cap, (long)inter, (long)ptr); + } + ''' + + functions = [ + ("new_array_struct", "METH_VARARGS", """ + + long long n_elem = 0; + double value = 0.0; + + if (!PyArg_ParseTuple(args, "Ld", &n_elem, &value)) { + Py_RETURN_NONE; + } + + /* allocate and initialize the data to share with numpy */ + long long n_bytes = n_elem*sizeof(double); + double *data = (double*)malloc(n_bytes); + + if (!data) { + PyErr_Format(PyExc_MemoryError, + "Failed to malloc %lld bytes", n_bytes); + + Py_RETURN_NONE; + } + + for (long long i = 0; i < n_elem; ++i) { + data[i] = value; + } + + /* calculate the shape and stride */ + int nd = 1; + + npy_intp *ss = (npy_intp*)malloc(2*nd*sizeof(npy_intp)); + npy_intp *shape = ss; + npy_intp *stride = ss + nd; + + shape[0] = n_elem; + stride[0] = sizeof(double); + + /* construct the array interface */ + PyArrayInterface *inter = (PyArrayInterface*) + malloc(sizeof(PyArrayInterface)); + + memset(inter, 0, sizeof(PyArrayInterface)); + + inter->two = 2; + inter->nd = nd; + inter->typekind = 'f'; + inter->itemsize = sizeof(double); + inter->shape = shape; + inter->strides = stride; + inter->data = data; + inter->flags = NPY_ARRAY_WRITEABLE | NPY_ARRAY_NOTSWAPPED | + NPY_ARRAY_ALIGNED | NPY_ARRAY_C_CONTIGUOUS; + + /* package into a capsule */ + PyObject *cap = PyCapsule_New(inter, NULL, delete_array_struct); + + /* save the pointer to the data */ + PyCapsule_SetContext(cap, data); + + fprintf(stderr, "new_array_struct\\ncap = %ld inter = %ld" + " ptr = %ld\\n", (long)cap, (long)inter, (long)data); + + return cap; + """) + ] + + more_init = "import_array();" + + try: + import array_interface_testing + return array_interface_testing + except ImportError: + pass + + # if it does not exist, build and load it + if sysconfig.get_platform() == "win-arm64": + pytest.skip("Meson unable to find MSVC linker on win-arm64") + return extbuild.build_and_import_extension('array_interface_testing', + functions, + prologue=prologue, + include_dirs=[np.get_include()], + build_dir=tmp_path, + more_init=more_init) + + +@pytest.mark.slow +def test_cstruct(get_module): + + class data_source: + """ + This class is for testing the timing of the PyCapsule destructor + invoked when numpy release its reference to the shared data as part of + the numpy array interface protocol. If the PyCapsule destructor is + called early the shared data is freed and invalid memory accesses will + occur. + """ + + def __init__(self, size, value): + self.size = size + self.value = value + + @property + def __array_struct__(self): + return get_module.new_array_struct(self.size, self.value) + + # write to the same stream as the C code + stderr = sys.__stderr__ + + # used to validate the shared data. + expected_value = -3.1415 + multiplier = -10000.0 + + # create some data to share with numpy via the array interface + # assign the data an expected value. + stderr.write(' ---- create an object to share data ---- \n') + buf = data_source(256, expected_value) + stderr.write(' ---- OK!\n\n') + + # share the data + stderr.write(' ---- share data via the array interface protocol ---- \n') + arr = np.array(buf, copy=False) + stderr.write(f'arr.__array_interface___ = {str(arr.__array_interface__)}\n') + stderr.write(f'arr.base = {str(arr.base)}\n') + stderr.write(' ---- OK!\n\n') + + # release the source of the shared data. this will not release the data + # that was shared with numpy, that is done in the PyCapsule destructor. + stderr.write(' ---- destroy the object that shared data ---- \n') + buf = None + stderr.write(' ---- OK!\n\n') + + # check that we got the expected data. If the PyCapsule destructor we + # defined was prematurely called then this test will fail because our + # destructor sets the elements of the array to NaN before free'ing the + # buffer. Reading the values here may also cause a SEGV + assert np.allclose(arr, expected_value) + + # read the data. If the PyCapsule destructor we defined was prematurely + # called then reading the values here may cause a SEGV and will be reported + # as invalid reads by valgrind + stderr.write(' ---- read shared data ---- \n') + stderr.write(f'arr = {str(arr)}\n') + stderr.write(' ---- OK!\n\n') + + # write to the shared buffer. If the shared data was prematurely deleted + # this will may cause a SEGV and valgrind will report invalid writes + stderr.write(' ---- modify shared data ---- \n') + arr *= multiplier + expected_value *= multiplier + stderr.write(f'arr.__array_interface___ = {str(arr.__array_interface__)}\n') + stderr.write(f'arr.base = {str(arr.base)}\n') + stderr.write(' ---- OK!\n\n') + + # read the data. If the shared data was prematurely deleted this + # will may cause a SEGV and valgrind will report invalid reads + stderr.write(' ---- read modified shared data ---- \n') + stderr.write(f'arr = {str(arr)}\n') + stderr.write(' ---- OK!\n\n') + + # check that we got the expected data. If the PyCapsule destructor we + # defined was prematurely called then this test will fail because our + # destructor sets the elements of the array to NaN before free'ing the + # buffer. Reading the values here may also cause a SEGV + assert np.allclose(arr, expected_value) + + # free the shared data, the PyCapsule destructor should run here + stderr.write(' ---- free shared data ---- \n') + arr = None + stderr.write(' ---- OK!\n\n') diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_arraymethod.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_arraymethod.py new file mode 100644 index 0000000000000000000000000000000000000000..5b3d515857182ad2ac5c1c74c3086c3e78995a5a --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_arraymethod.py @@ -0,0 +1,84 @@ +""" +This file tests the generic aspects of ArrayMethod. At the time of writing +this is private API, but when added, public API may be added here. +""" + +import types +from typing import Any + +import pytest + +import numpy as np +from numpy._core._multiarray_umath import _get_castingimpl as get_castingimpl + + +class TestResolveDescriptors: + # Test mainly error paths of the resolve_descriptors function, + # note that the `casting_unittests` tests exercise this non-error paths. + + # Casting implementations are the main/only current user: + method = get_castingimpl(type(np.dtype("d")), type(np.dtype("f"))) + + @pytest.mark.parametrize("args", [ + (True,), # Not a tuple. + ((None,)), # Too few elements + ((None, None, None),), # Too many + ((None, None),), # Input dtype is None, which is invalid. + ((np.dtype("d"), True),), # Output dtype is not a dtype + ((np.dtype("f"), None),), # Input dtype does not match method + ]) + def test_invalid_arguments(self, args): + with pytest.raises(TypeError): + self.method._resolve_descriptors(*args) + + +class TestSimpleStridedCall: + # Test mainly error paths of the resolve_descriptors function, + # note that the `casting_unittests` tests exercise this non-error paths. + + # Casting implementations are the main/only current user: + method = get_castingimpl(type(np.dtype("d")), type(np.dtype("f"))) + + @pytest.mark.parametrize(["args", "error"], [ + ((True,), TypeError), # Not a tuple + (((None,),), TypeError), # Too few elements + ((None, None), TypeError), # Inputs are not arrays. + (((None, None, None),), TypeError), # Too many + (((np.arange(3), np.arange(3)),), TypeError), # Incorrect dtypes + (((np.ones(3, dtype=">d"), np.ones(3, dtype=" None: + """Test `ndarray.__class_getitem__`.""" + alias = cls[Any, Any] + assert isinstance(alias, types.GenericAlias) + assert alias.__origin__ is cls + + @pytest.mark.parametrize("arg_len", range(4)) + def test_subscript_tup(self, cls: type[np.ndarray], arg_len: int) -> None: + arg_tup = (Any,) * arg_len + if arg_len in (1, 2): + assert cls[arg_tup] + else: + match = f"Too {'few' if arg_len == 0 else 'many'} arguments" + with pytest.raises(TypeError, match=match): + cls[arg_tup] diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_arrayobject.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_arrayobject.py new file mode 100644 index 0000000000000000000000000000000000000000..f4e268b377b3e5950ef13806b8d3af625e7e7e27 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_arrayobject.py @@ -0,0 +1,95 @@ +import sys + +import pytest + +import numpy as np +from numpy.testing import HAS_REFCOUNT, assert_array_equal + + +def test_matrix_transpose_raises_error_for_1d(): + msg = "matrix transpose with ndim < 2 is undefined" + arr = np.arange(48) + with pytest.raises(ValueError, match=msg): + arr.mT + + +def test_matrix_transpose_equals_transpose_2d(): + arr = np.arange(48).reshape((6, 8)) + assert_array_equal(arr.T, arr.mT) + + +ARRAY_SHAPES_TO_TEST = ( + (5, 2), + (5, 2, 3), + (5, 2, 3, 4), +) + + +@pytest.mark.parametrize("shape", ARRAY_SHAPES_TO_TEST) +def test_matrix_transpose_equals_swapaxes(shape): + num_of_axes = len(shape) + vec = np.arange(shape[-1]) + arr = np.broadcast_to(vec, shape) + tgt = np.swapaxes(arr, num_of_axes - 2, num_of_axes - 1) + mT = arr.mT + assert_array_equal(tgt, mT) + + +class MyArr(np.ndarray): + def __array_wrap__(self, arr, context=None, return_scalar=None): + return super().__array_wrap__(arr, context, return_scalar) + + +class MyArrNoWrap(np.ndarray): + pass + + +@pytest.mark.parametrize("subclass_self", [np.ndarray, MyArr, MyArrNoWrap]) +@pytest.mark.parametrize("subclass_arr", [np.ndarray, MyArr, MyArrNoWrap]) +def test_array_wrap(subclass_self, subclass_arr): + # NumPy should allow `__array_wrap__` to be called on arrays, it's logic + # is designed in a way that: + # + # * Subclasses never return scalars by default (to preserve their + # information). They can choose to if they wish. + # * NumPy returns scalars, if `return_scalar` is passed as True to allow + # manual calls to `arr.__array_wrap__` to do the right thing. + # * The type of the input should be ignored (it should be a base-class + # array, but I am not sure this is guaranteed). + + arr = np.arange(3).view(subclass_self) + + arr0d = np.array(3, dtype=np.int8).view(subclass_arr) + # With third argument True, ndarray allows "decay" to scalar. + # (I don't think NumPy would pass `None`, but it seems clear to support) + if subclass_self is np.ndarray: + assert type(arr.__array_wrap__(arr0d, None, True)) is np.int8 + else: + assert type(arr.__array_wrap__(arr0d, None, True)) is type(arr) + + # Otherwise, result should be viewed as the subclass + assert type(arr.__array_wrap__(arr0d)) is type(arr) + assert type(arr.__array_wrap__(arr0d, None, None)) is type(arr) + assert type(arr.__array_wrap__(arr0d, None, False)) is type(arr) + + # Non 0-D array can't be converted to scalar, so we ignore that + arr1d = np.array([3], dtype=np.int8).view(subclass_arr) + assert type(arr.__array_wrap__(arr1d, None, True)) is type(arr) + + +@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") +def test_cleanup_with_refs_non_contig(): + # Regression test, leaked the dtype (but also good for rest) + dtype = np.dtype("O,i") + obj = object() + expected_ref_dtype = sys.getrefcount(dtype) + expected_ref_obj = sys.getrefcount(obj) + proto = np.full((3, 4, 5, 6, 7), np.array((obj, 2), dtype=dtype)) + # Give array a non-trivial order to exercise more cleanup paths. + arr = proto.transpose((2, 0, 3, 1, 4)).copy("K") + del proto, arr + + actual_ref_dtype = sys.getrefcount(dtype) + actual_ref_obj = sys.getrefcount(obj) + assert actual_ref_dtype == expected_ref_dtype + assert actual_ref_obj == actual_ref_dtype diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_arrayprint.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_arrayprint.py new file mode 100644 index 0000000000000000000000000000000000000000..06d1306dd408ecc4bdba589ff53e39bb3331f325 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_arrayprint.py @@ -0,0 +1,1324 @@ +import gc +import sys +import textwrap + +import pytest +from hypothesis import given +from hypothesis.extra import numpy as hynp + +import numpy as np +from numpy._core.arrayprint import _typelessdata +from numpy.testing import ( + HAS_REFCOUNT, + IS_WASM, + assert_, + assert_equal, + assert_raises, + assert_raises_regex, +) +from numpy.testing._private.utils import run_threaded + + +class TestArrayRepr: + def test_nan_inf(self): + x = np.array([np.nan, np.inf]) + assert_equal(repr(x), 'array([nan, inf])') + + def test_subclass(self): + class sub(np.ndarray): + pass + + # one dimensional + x1d = np.array([1, 2]).view(sub) + assert_equal(repr(x1d), 'sub([1, 2])') + + # two dimensional + x2d = np.array([[1, 2], [3, 4]]).view(sub) + assert_equal(repr(x2d), + 'sub([[1, 2],\n' + ' [3, 4]])') + + # two dimensional with flexible dtype + xstruct = np.ones((2, 2), dtype=[('a', ' 1) + y = sub(None) + x[()] = y + y[()] = x + assert_equal(repr(x), + 'sub(sub(sub(..., dtype=object), dtype=object), dtype=object)') + assert_equal(str(x), '...') + x[()] = 0 # resolve circular references for garbage collector + + # nested 0d-subclass-object + x = sub(None) + x[()] = sub(None) + assert_equal(repr(x), 'sub(sub(None, dtype=object), dtype=object)') + assert_equal(str(x), 'None') + + # gh-10663 + class DuckCounter(np.ndarray): + def __getitem__(self, item): + result = super().__getitem__(item) + if not isinstance(result, DuckCounter): + result = result[...].view(DuckCounter) + return result + + def to_string(self): + return {0: 'zero', 1: 'one', 2: 'two'}.get(self.item(), 'many') + + def __str__(self): + if self.shape == (): + return self.to_string() + else: + fmt = {'all': lambda x: x.to_string()} + return np.array2string(self, formatter=fmt) + + dc = np.arange(5).view(DuckCounter) + assert_equal(str(dc), "[zero one two many many]") + assert_equal(str(dc[0]), "zero") + + def test_self_containing(self): + arr0d = np.array(None) + arr0d[()] = arr0d + assert_equal(repr(arr0d), + 'array(array(..., dtype=object), dtype=object)') + arr0d[()] = 0 # resolve recursion for garbage collector + + arr1d = np.array([None, None]) + arr1d[1] = arr1d + assert_equal(repr(arr1d), + 'array([None, array(..., dtype=object)], dtype=object)') + arr1d[1] = 0 # resolve recursion for garbage collector + + first = np.array(None) + second = np.array(None) + first[()] = second + second[()] = first + assert_equal(repr(first), + 'array(array(array(..., dtype=object), dtype=object), dtype=object)') + first[()] = 0 # resolve circular references for garbage collector + + def test_containing_list(self): + # printing square brackets directly would be ambiguous + arr1d = np.array([None, None]) + arr1d[0] = [1, 2] + arr1d[1] = [3] + assert_equal(repr(arr1d), + 'array([list([1, 2]), list([3])], dtype=object)') + + def test_void_scalar_recursion(self): + # gh-9345 + repr(np.void(b'test')) # RecursionError ? + + def test_fieldless_structured(self): + # gh-10366 + no_fields = np.dtype([]) + arr_no_fields = np.empty(4, dtype=no_fields) + assert_equal(repr(arr_no_fields), 'array([(), (), (), ()], dtype=[])') + + +class TestComplexArray: + def test_str(self): + rvals = [0, 1, -1, np.inf, -np.inf, np.nan] + cvals = [complex(rp, ip) for rp in rvals for ip in rvals] + dtypes = [np.complex64, np.cdouble, np.clongdouble] + actual = [str(np.array([c], dt)) for c in cvals for dt in dtypes] + wanted = [ + '[0.+0.j]', '[0.+0.j]', '[0.+0.j]', + '[0.+1.j]', '[0.+1.j]', '[0.+1.j]', + '[0.-1.j]', '[0.-1.j]', '[0.-1.j]', + '[0.+infj]', '[0.+infj]', '[0.+infj]', + '[0.-infj]', '[0.-infj]', '[0.-infj]', + '[0.+nanj]', '[0.+nanj]', '[0.+nanj]', + '[1.+0.j]', '[1.+0.j]', '[1.+0.j]', + '[1.+1.j]', '[1.+1.j]', '[1.+1.j]', + '[1.-1.j]', '[1.-1.j]', '[1.-1.j]', + '[1.+infj]', '[1.+infj]', '[1.+infj]', + '[1.-infj]', '[1.-infj]', '[1.-infj]', + '[1.+nanj]', '[1.+nanj]', '[1.+nanj]', + '[-1.+0.j]', '[-1.+0.j]', '[-1.+0.j]', + '[-1.+1.j]', '[-1.+1.j]', '[-1.+1.j]', + '[-1.-1.j]', '[-1.-1.j]', '[-1.-1.j]', + '[-1.+infj]', '[-1.+infj]', '[-1.+infj]', + '[-1.-infj]', '[-1.-infj]', '[-1.-infj]', + '[-1.+nanj]', '[-1.+nanj]', '[-1.+nanj]', + '[inf+0.j]', '[inf+0.j]', '[inf+0.j]', + '[inf+1.j]', '[inf+1.j]', '[inf+1.j]', + '[inf-1.j]', '[inf-1.j]', '[inf-1.j]', + '[inf+infj]', '[inf+infj]', '[inf+infj]', + '[inf-infj]', '[inf-infj]', '[inf-infj]', + '[inf+nanj]', '[inf+nanj]', '[inf+nanj]', + '[-inf+0.j]', '[-inf+0.j]', '[-inf+0.j]', + '[-inf+1.j]', '[-inf+1.j]', '[-inf+1.j]', + '[-inf-1.j]', '[-inf-1.j]', '[-inf-1.j]', + '[-inf+infj]', '[-inf+infj]', '[-inf+infj]', + '[-inf-infj]', '[-inf-infj]', '[-inf-infj]', + '[-inf+nanj]', '[-inf+nanj]', '[-inf+nanj]', + '[nan+0.j]', '[nan+0.j]', '[nan+0.j]', + '[nan+1.j]', '[nan+1.j]', '[nan+1.j]', + '[nan-1.j]', '[nan-1.j]', '[nan-1.j]', + '[nan+infj]', '[nan+infj]', '[nan+infj]', + '[nan-infj]', '[nan-infj]', '[nan-infj]', + '[nan+nanj]', '[nan+nanj]', '[nan+nanj]'] + + for res, val in zip(actual, wanted): + assert_equal(res, val) + +class TestArray2String: + def test_basic(self): + """Basic test of array2string.""" + a = np.arange(3) + assert_(np.array2string(a) == '[0 1 2]') + assert_(np.array2string(a, max_line_width=4, legacy='1.13') == '[0 1\n 2]') + assert_(np.array2string(a, max_line_width=4) == '[0\n 1\n 2]') + + def test_unexpected_kwarg(self): + # ensure than an appropriate TypeError + # is raised when array2string receives + # an unexpected kwarg + + with assert_raises_regex(TypeError, 'nonsense'): + np.array2string(np.array([1, 2, 3]), + nonsense=None) + + def test_format_function(self): + """Test custom format function for each element in array.""" + def _format_function(x): + if np.abs(x) < 1: + return '.' + elif np.abs(x) < 2: + return 'o' + else: + return 'O' + + x = np.arange(3) + x_hex = "[0x0 0x1 0x2]" + x_oct = "[0o0 0o1 0o2]" + assert_(np.array2string(x, formatter={'all': _format_function}) == + "[. o O]") + assert_(np.array2string(x, formatter={'int_kind': _format_function}) == + "[. o O]") + assert_(np.array2string(x, formatter={'all': lambda x: f"{x:.4f}"}) == + "[0.0000 1.0000 2.0000]") + assert_equal(np.array2string(x, formatter={'int': hex}), + x_hex) + assert_equal(np.array2string(x, formatter={'int': oct}), + x_oct) + + x = np.arange(3.) + assert_(np.array2string(x, formatter={'float_kind': lambda x: f"{x:.2f}"}) == + "[0.00 1.00 2.00]") + assert_(np.array2string(x, formatter={'float': lambda x: f"{x:.2f}"}) == + "[0.00 1.00 2.00]") + + s = np.array(['abc', 'def']) + assert_(np.array2string(s, formatter={'numpystr': lambda s: s * 2}) == + '[abcabc defdef]') + + def test_structure_format_mixed(self): + dt = np.dtype([('name', np.str_, 16), ('grades', np.float64, (2,))]) + x = np.array([('Sarah', (8.0, 7.0)), ('John', (6.0, 7.0))], dtype=dt) + assert_equal(np.array2string(x), + "[('Sarah', [8., 7.]) ('John', [6., 7.])]") + + np.set_printoptions(legacy='1.13') + try: + # for issue #5692 + A = np.zeros(shape=10, dtype=[("A", "M8[s]")]) + A[5:].fill(np.datetime64('NaT')) + assert_equal( + np.array2string(A), + textwrap.dedent("""\ + [('1970-01-01T00:00:00',) ('1970-01-01T00:00:00',) ('1970-01-01T00:00:00',) + ('1970-01-01T00:00:00',) ('1970-01-01T00:00:00',) ('NaT',) ('NaT',) + ('NaT',) ('NaT',) ('NaT',)]""") + ) + finally: + np.set_printoptions(legacy=False) + + # same again, but with non-legacy behavior + assert_equal( + np.array2string(A), + textwrap.dedent("""\ + [('1970-01-01T00:00:00',) ('1970-01-01T00:00:00',) + ('1970-01-01T00:00:00',) ('1970-01-01T00:00:00',) + ('1970-01-01T00:00:00',) ( 'NaT',) + ( 'NaT',) ( 'NaT',) + ( 'NaT',) ( 'NaT',)]""") + ) + + # and again, with timedeltas + A = np.full(10, 123456, dtype=[("A", "m8[s]")]) + A[5:].fill(np.datetime64('NaT')) + assert_equal( + np.array2string(A), + textwrap.dedent("""\ + [(123456,) (123456,) (123456,) (123456,) (123456,) ( 'NaT',) ( 'NaT',) + ( 'NaT',) ( 'NaT',) ( 'NaT',)]""") + ) + + def test_structure_format_int(self): + # See #8160 + struct_int = np.array([([1, -1],), ([123, 1],)], + dtype=[('B', 'i4', 2)]) + assert_equal(np.array2string(struct_int), + "[([ 1, -1],) ([123, 1],)]") + struct_2dint = np.array([([[0, 1], [2, 3]],), ([[12, 0], [0, 0]],)], + dtype=[('B', 'i4', (2, 2))]) + assert_equal(np.array2string(struct_2dint), + "[([[ 0, 1], [ 2, 3]],) ([[12, 0], [ 0, 0]],)]") + + def test_structure_format_float(self): + # See #8172 + array_scalar = np.array( + (1., 2.1234567890123456789, 3.), dtype=('f8,f8,f8')) + assert_equal(np.array2string(array_scalar), "(1., 2.12345679, 3.)") + + def test_unstructured_void_repr(self): + a = np.array([27, 91, 50, 75, 7, 65, 10, 8, 27, 91, 51, 49, 109, 82, 101, 100], + dtype='u1').view('V8') + assert_equal(repr(a[0]), + r"np.void(b'\x1B\x5B\x32\x4B\x07\x41\x0A\x08')") + assert_equal(str(a[0]), r"b'\x1B\x5B\x32\x4B\x07\x41\x0A\x08'") + assert_equal(repr(a), + r"array([b'\x1B\x5B\x32\x4B\x07\x41\x0A\x08'," + "\n" + r" b'\x1B\x5B\x33\x31\x6D\x52\x65\x64'], dtype='|V8')") + + assert_equal(eval(repr(a), vars(np)), a) + assert_equal(eval(repr(a[0]), {'np': np}), a[0]) + + def test_edgeitems_kwarg(self): + # previously the global print options would be taken over the kwarg + arr = np.zeros(3, int) + assert_equal( + np.array2string(arr, edgeitems=1, threshold=0), + "[0 ... 0]" + ) + + def test_summarize_1d(self): + A = np.arange(1001) + strA = '[ 0 1 2 ... 998 999 1000]' + assert_equal(str(A), strA) + + reprA = 'array([ 0, 1, 2, ..., 998, 999, 1000])' + try: + np.set_printoptions(legacy='2.1') + assert_equal(repr(A), reprA) + finally: + np.set_printoptions(legacy=False) + + assert_equal(repr(A), reprA.replace(')', ', shape=(1001,))')) + + def test_summarize_2d(self): + A = np.arange(1002).reshape(2, 501) + strA = '[[ 0 1 2 ... 498 499 500]\n' \ + ' [ 501 502 503 ... 999 1000 1001]]' + assert_equal(str(A), strA) + + reprA = 'array([[ 0, 1, 2, ..., 498, 499, 500],\n' \ + ' [ 501, 502, 503, ..., 999, 1000, 1001]])' + try: + np.set_printoptions(legacy='2.1') + assert_equal(repr(A), reprA) + finally: + np.set_printoptions(legacy=False) + + assert_equal(repr(A), reprA.replace(')', ', shape=(2, 501))')) + + def test_summarize_2d_dtype(self): + A = np.arange(1002, dtype='i2').reshape(2, 501) + strA = '[[ 0 1 2 ... 498 499 500]\n' \ + ' [ 501 502 503 ... 999 1000 1001]]' + assert_equal(str(A), strA) + + reprA = ('array([[ 0, 1, 2, ..., 498, 499, 500],\n' + ' [ 501, 502, 503, ..., 999, 1000, 1001]],\n' + ' shape=(2, 501), dtype=int16)') + assert_equal(repr(A), reprA) + + def test_summarize_structure(self): + A = (np.arange(2002, dtype="i8", (2, 1001))]) + strB = "[([[1, 1, 1, ..., 1, 1, 1], [1, 1, 1, ..., 1, 1, 1]],)]" + assert_equal(str(B), strB) + + reprB = ( + "array([([[1, 1, 1, ..., 1, 1, 1], [1, 1, 1, ..., 1, 1, 1]],)],\n" + " dtype=[('i', '>i8', (2, 1001))])" + ) + assert_equal(repr(B), reprB) + + C = (np.arange(22, dtype=" 1: + # if the type is >1 byte, the non-native endian version + # must show endianness. + assert non_native_repr != native_repr + assert f"dtype='{non_native_dtype.byteorder}" in non_native_repr + + def test_linewidth_repr(self): + a = np.full(7, fill_value=2) + np.set_printoptions(linewidth=17) + assert_equal( + repr(a), + textwrap.dedent("""\ + array([2, 2, 2, + 2, 2, 2, + 2])""") + ) + np.set_printoptions(linewidth=17, legacy='1.13') + assert_equal( + repr(a), + textwrap.dedent("""\ + array([2, 2, 2, + 2, 2, 2, 2])""") + ) + + a = np.full(8, fill_value=2) + + np.set_printoptions(linewidth=18, legacy=False) + assert_equal( + repr(a), + textwrap.dedent("""\ + array([2, 2, 2, + 2, 2, 2, + 2, 2])""") + ) + + np.set_printoptions(linewidth=18, legacy='1.13') + assert_equal( + repr(a), + textwrap.dedent("""\ + array([2, 2, 2, 2, + 2, 2, 2, 2])""") + ) + + def test_linewidth_str(self): + a = np.full(18, fill_value=2) + np.set_printoptions(linewidth=18) + assert_equal( + str(a), + textwrap.dedent("""\ + [2 2 2 2 2 2 2 2 + 2 2 2 2 2 2 2 2 + 2 2]""") + ) + np.set_printoptions(linewidth=18, legacy='1.13') + assert_equal( + str(a), + textwrap.dedent("""\ + [2 2 2 2 2 2 2 2 2 + 2 2 2 2 2 2 2 2 2]""") + ) + + def test_edgeitems(self): + np.set_printoptions(edgeitems=1, threshold=1) + a = np.arange(27).reshape((3, 3, 3)) + assert_equal( + repr(a), + textwrap.dedent("""\ + array([[[ 0, ..., 2], + ..., + [ 6, ..., 8]], + + ..., + + [[18, ..., 20], + ..., + [24, ..., 26]]], shape=(3, 3, 3))""") + ) + + b = np.zeros((3, 3, 1, 1)) + assert_equal( + repr(b), + textwrap.dedent("""\ + array([[[[0.]], + + ..., + + [[0.]]], + + + ..., + + + [[[0.]], + + ..., + + [[0.]]]], shape=(3, 3, 1, 1))""") + ) + + # 1.13 had extra trailing spaces, and was missing newlines + try: + np.set_printoptions(legacy='1.13') + assert_equal(repr(a), ( + "array([[[ 0, ..., 2],\n" + " ..., \n" + " [ 6, ..., 8]],\n" + "\n" + " ..., \n" + " [[18, ..., 20],\n" + " ..., \n" + " [24, ..., 26]]])") + ) + assert_equal(repr(b), ( + "array([[[[ 0.]],\n" + "\n" + " ..., \n" + " [[ 0.]]],\n" + "\n" + "\n" + " ..., \n" + " [[[ 0.]],\n" + "\n" + " ..., \n" + " [[ 0.]]]])") + ) + finally: + np.set_printoptions(legacy=False) + + def test_edgeitems_structured(self): + np.set_printoptions(edgeitems=1, threshold=1) + A = np.arange(5 * 2 * 3, dtype="f4')])"), + (np.void(b'a'), r"void(b'\x61')", r"np.void(b'\x61')"), + ]) +def test_scalar_repr_special(scalar, legacy_repr, representation): + # Test NEP 51 scalar repr (and legacy option) for numeric types + assert repr(scalar) == representation + + with np.printoptions(legacy="1.25"): + assert repr(scalar) == legacy_repr + +def test_scalar_void_float_str(): + # Note that based on this currently we do not print the same as a tuple + # would, since the tuple would include the repr() inside for floats, but + # we do not do that. + scalar = np.void((1.0, 2.0), dtype=[('f0', 'f4')]) + assert str(scalar) == "(1.0, 2.0)" + +@pytest.mark.skipif(IS_WASM, reason="wasm doesn't support asyncio") +@pytest.mark.skipif(sys.version_info < (3, 11), + reason="asyncio.barrier was added in Python 3.11") +def test_printoptions_asyncio_safe(): + asyncio = pytest.importorskip("asyncio") + + b = asyncio.Barrier(2) + + async def legacy_113(): + np.set_printoptions(legacy='1.13', precision=12) + await b.wait() + po = np.get_printoptions() + assert po['legacy'] == '1.13' + assert po['precision'] == 12 + orig_linewidth = po['linewidth'] + with np.printoptions(linewidth=34, legacy='1.21'): + po = np.get_printoptions() + assert po['legacy'] == '1.21' + assert po['precision'] == 12 + assert po['linewidth'] == 34 + po = np.get_printoptions() + assert po['linewidth'] == orig_linewidth + assert po['legacy'] == '1.13' + assert po['precision'] == 12 + + async def legacy_125(): + np.set_printoptions(legacy='1.25', precision=7) + await b.wait() + po = np.get_printoptions() + assert po['legacy'] == '1.25' + assert po['precision'] == 7 + orig_linewidth = po['linewidth'] + with np.printoptions(linewidth=6, legacy='1.13'): + po = np.get_printoptions() + assert po['legacy'] == '1.13' + assert po['precision'] == 7 + assert po['linewidth'] == 6 + po = np.get_printoptions() + assert po['linewidth'] == orig_linewidth + assert po['legacy'] == '1.25' + assert po['precision'] == 7 + + async def main(): + await asyncio.gather(legacy_125(), legacy_125()) + + loop = asyncio.new_event_loop() + asyncio.run(main()) + loop.close() + +@pytest.mark.skipif(IS_WASM, reason="wasm doesn't support threads") +@pytest.mark.thread_unsafe(reason="test is already explicitly multi-threaded") +def test_multithreaded_array_printing(): + # the dragon4 implementation uses a static scratch space for performance + # reasons this test makes sure it is set up in a thread-safe manner + + run_threaded(TestPrintOptions().test_floatmode, 500) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_casting_floatingpoint_errors.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_casting_floatingpoint_errors.py new file mode 100644 index 0000000000000000000000000000000000000000..2f9c01f907c425a932fd4d3c2e47f653aa333a54 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_casting_floatingpoint_errors.py @@ -0,0 +1,154 @@ +import pytest +from pytest import param + +import numpy as np +from numpy.testing import IS_WASM + + +def values_and_dtypes(): + """ + Generate value+dtype pairs that generate floating point errors during + casts. The invalid casts to integers will generate "invalid" value + warnings, the float casts all generate "overflow". + + (The Python int/float paths don't need to get tested in all the same + situations, but it does not hurt.) + """ + # Casting to float16: + yield param(70000, "float16", id="int-to-f2") + yield param("70000", "float16", id="str-to-f2") + yield param(70000.0, "float16", id="float-to-f2") + yield param(np.longdouble(70000.), "float16", id="longdouble-to-f2") + yield param(np.float64(70000.), "float16", id="double-to-f2") + yield param(np.float32(70000.), "float16", id="float-to-f2") + # Casting to float32: + yield param(10**100, "float32", id="int-to-f4") + yield param(1e100, "float32", id="float-to-f2") + yield param(np.longdouble(1e300), "float32", id="longdouble-to-f2") + yield param(np.float64(1e300), "float32", id="double-to-f2") + # Casting to float64: + # If longdouble is double-double, its max can be rounded down to the double + # max. So we correct the double spacing (a bit weird, admittedly): + max_ld = np.finfo(np.longdouble).max + spacing = np.spacing(np.nextafter(np.finfo("f8").max, 0)) + if max_ld - spacing > np.finfo("f8").max: + yield param(np.finfo(np.longdouble).max, "float64", + id="longdouble-to-f8") + + # Cast to complex32: + yield param(2e300, "complex64", id="float-to-c8") + yield param(2e300 + 0j, "complex64", id="complex-to-c8") + yield param(2e300j, "complex64", id="complex-to-c8") + yield param(np.longdouble(2e300), "complex64", id="longdouble-to-c8") + + # Invalid float to integer casts: + with np.errstate(over="ignore"): + for to_dt in np.typecodes["AllInteger"]: + for value in [np.inf, np.nan]: + for from_dt in np.typecodes["AllFloat"]: + from_dt = np.dtype(from_dt) + from_val = from_dt.type(value) + + yield param(from_val, to_dt, id=f"{from_val}-to-{to_dt}") + + +def check_operations(dtype, value): + """ + There are many dedicated paths in NumPy which cast and should check for + floating point errors which occurred during those casts. + """ + if dtype.kind != 'i': + # These assignments use the stricter setitem logic: + def assignment(): + arr = np.empty(3, dtype=dtype) + arr[0] = value + + yield assignment + + def fill(): + arr = np.empty(3, dtype=dtype) + arr.fill(value) + + yield fill + + def copyto_scalar(): + arr = np.empty(3, dtype=dtype) + np.copyto(arr, value, casting="unsafe") + + yield copyto_scalar + + def copyto(): + arr = np.empty(3, dtype=dtype) + np.copyto(arr, np.array([value, value, value]), casting="unsafe") + + yield copyto + + def copyto_scalar_masked(): + arr = np.empty(3, dtype=dtype) + np.copyto(arr, value, casting="unsafe", + where=[True, False, True]) + + yield copyto_scalar_masked + + def copyto_masked(): + arr = np.empty(3, dtype=dtype) + np.copyto(arr, np.array([value, value, value]), casting="unsafe", + where=[True, False, True]) + + yield copyto_masked + + def direct_cast(): + np.array([value, value, value]).astype(dtype) + + yield direct_cast + + def direct_cast_nd_strided(): + arr = np.full((5, 5, 5), fill_value=value)[:, ::2, :] + arr.astype(dtype) + + yield direct_cast_nd_strided + + def boolean_array_assignment(): + arr = np.empty(3, dtype=dtype) + arr[[True, False, True]] = np.array([value, value]) + + yield boolean_array_assignment + + def integer_array_assignment(): + arr = np.empty(3, dtype=dtype) + values = np.array([value, value]) + + arr[[0, 1]] = values + + yield integer_array_assignment + + def integer_array_assignment_with_subspace(): + arr = np.empty((5, 3), dtype=dtype) + values = np.array([value, value, value]) + + arr[[0, 2]] = values + + yield integer_array_assignment_with_subspace + + def flat_assignment(): + arr = np.empty((3,), dtype=dtype) + values = np.array([value, value, value]) + arr.flat[:] = values + + yield flat_assignment + +@pytest.mark.skipif(IS_WASM, reason="no wasm fp exception support") +@pytest.mark.parametrize(["value", "dtype"], values_and_dtypes()) +@pytest.mark.filterwarnings("ignore::numpy.exceptions.ComplexWarning") +def test_floatingpoint_errors_casting(dtype, value): + dtype = np.dtype(dtype) + for operation in check_operations(dtype, value): + dtype = np.dtype(dtype) + + match = "invalid" if dtype.kind in 'iu' else "overflow" + with pytest.warns(RuntimeWarning, match=match): + operation() + + with np.errstate(all="raise"): + with pytest.raises(FloatingPointError, match=match): + operation() diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_casting_unittests.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_casting_unittests.py new file mode 100644 index 0000000000000000000000000000000000000000..5f643f8045ba93e118f47506245667ec3a491b62 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_casting_unittests.py @@ -0,0 +1,955 @@ +""" +The tests exercise the casting machinery in a more low-level manner. +The reason is mostly to test a new implementation of the casting machinery. + +Unlike most tests in NumPy, these are closer to unit-tests rather +than integration tests. +""" + +import ctypes +import enum +import random +import textwrap +import warnings + +import pytest + +import numpy as np +from numpy._core._multiarray_umath import _get_castingimpl as get_castingimpl +from numpy.lib.stride_tricks import as_strided +from numpy.testing import assert_array_equal, assert_equal + +# Simple skips object, parametric and long double (unsupported by struct) +simple_dtypes = "?bhilqBHILQefdFD" +if np.dtype("l").itemsize != np.dtype("q").itemsize: + # Remove l and L, the table was generated with 64bit linux in mind. + simple_dtypes = simple_dtypes.replace("l", "").replace("L", "") +simple_dtypes = [type(np.dtype(c)) for c in simple_dtypes] + + +def simple_dtype_instances(): + for dtype_class in simple_dtypes: + dt = dtype_class() + yield pytest.param(dt, id=str(dt)) + if dt.byteorder != "|": + dt = dt.newbyteorder() + yield pytest.param(dt, id=str(dt)) + + +def get_expected_stringlength(dtype): + """Returns the string length when casting the basic dtypes to strings. + """ + if dtype == np.bool: + return 5 + if dtype.kind in "iu": + if dtype.itemsize == 1: + length = 3 + elif dtype.itemsize == 2: + length = 5 + elif dtype.itemsize == 4: + length = 10 + elif dtype.itemsize == 8: + length = 20 + else: + raise AssertionError(f"did not find expected length for {dtype}") + + if dtype.kind == "i": + length += 1 # adds one character for the sign + + return length + + # Note: Can't do dtype comparison for longdouble on windows + if dtype.char == "g": + return 48 + elif dtype.char == "G": + return 48 * 2 + elif dtype.kind == "f": + return 32 # also for half apparently. + elif dtype.kind == "c": + return 32 * 2 + + raise AssertionError(f"did not find expected length for {dtype}") + + +class Casting(enum.IntEnum): + no = 0 + equiv = 1 + safe = 2 + same_kind = 3 + unsafe = 4 + same_value = 64 + + +same_value_dtypes = tuple(type(np.dtype(c)) for c in "?bhilqBHILQefdgFDG") + +def _get_cancast_table(): + table = textwrap.dedent(""" + X ? b h i l q B H I L Q e f d g F D G S U V O M m + ? # = = = = = = = = = = = = = = = = = = = = = . = + b . # = = = = . . . . . = = = = = = = = = = = . = + h . ~ # = = = . . . . . ~ = = = = = = = = = = . = + i . ~ ~ # = = . . . . . ~ ~ = = ~ = = = = = = . = + l . ~ ~ ~ # # . . . . . ~ ~ = = ~ = = = = = = . = + q . ~ ~ ~ # # . . . . . ~ ~ = = ~ = = = = = = . = + B . ~ = = = = # = = = = = = = = = = = = = = = . = + H . ~ ~ = = = ~ # = = = ~ = = = = = = = = = = . = + I . ~ ~ ~ = = ~ ~ # = = ~ ~ = = ~ = = = = = = . = + L . ~ ~ ~ ~ ~ ~ ~ ~ # # ~ ~ = = ~ = = = = = = . ~ + Q . ~ ~ ~ ~ ~ ~ ~ ~ # # ~ ~ = = ~ = = = = = = . ~ + e . . . . . . . . . . . # = = = = = = = = = = . . + f . . . . . . . . . . . ~ # = = = = = = = = = . . + d . . . . . . . . . . . ~ ~ # = ~ = = = = = = . . + g . . . . . . . . . . . ~ ~ ~ # ~ ~ = = = = = . . + F . . . . . . . . . . . . . . . # = = = = = = . . + D . . . . . . . . . . . . . . . ~ # = = = = = . . + G . . . . . . . . . . . . . . . ~ ~ # = = = = . . + S . . . . . . . . . . . . . . . . . . # = = = . . + U . . . . . . . . . . . . . . . . . . . # = = . . + V . . . . . . . . . . . . . . . . . . . . # = . . + O . . . . . . . . . . . . . . . . . . . . = # . . + M . . . . . . . . . . . . . . . . . . . . = = # . + m . . . . . . . . . . . . . . . . . . . . = = . # + """).strip().split("\n") + dtypes = [type(np.dtype(c)) for c in table[0][2::2]] + + convert_cast = {".": Casting.unsafe, "~": Casting.same_kind, + "=": Casting.safe, "#": Casting.equiv, + " ": -1} + + cancast = {} + for from_dt, row in zip(dtypes, table[1:]): + cancast[from_dt] = {} + for to_dt, c in zip(dtypes, row[2::2]): + cancast[from_dt][to_dt] = convert_cast[c] + # Of the types checked, numeric cast support same-value + if from_dt in same_value_dtypes and to_dt in same_value_dtypes: + cancast[from_dt][to_dt] |= Casting.same_value + + return cancast + + +CAST_TABLE = _get_cancast_table() + + +class TestChanges: + """ + These test cases exercise some behaviour changes + """ + @pytest.mark.parametrize("string", ["S", "U"]) + @pytest.mark.parametrize("floating", ["e", "f", "d", "g"]) + def test_float_to_string(self, floating, string): + assert np.can_cast(floating, string) + # 100 is long enough to hold any formatted floating + assert np.can_cast(floating, f"{string}100") + + def test_to_void(self): + # But in general, we do consider these safe: + assert np.can_cast("d", "V") + assert np.can_cast("S20", "V") + + # Do not consider it a safe cast if the void is too smaller: + assert not np.can_cast("d", "V1") + assert not np.can_cast("S20", "V1") + assert not np.can_cast("U1", "V1") + # Structured to unstructured is just like any other: + assert np.can_cast("d,i", "V", casting="same_kind") + # Unstructured void to unstructured is actually no cast at all: + assert np.can_cast("V3", "V", casting="no") + assert np.can_cast("V0", "V", casting="no") + + +class TestCasting: + size = 1500 # Best larger than NPY_LOWLEVEL_BUFFER_BLOCKSIZE * itemsize + + def get_data(self, dtype1, dtype2): + if dtype2 is None or dtype1.itemsize >= dtype2.itemsize: + length = self.size // dtype1.itemsize + else: + length = self.size // dtype2.itemsize + + # Assume that the base array is well enough aligned for all inputs. + arr1 = np.empty(length, dtype=dtype1) + assert arr1.flags.c_contiguous + assert arr1.flags.aligned + + values = [random.randrange(-128, 128) for _ in range(length)] + + for i, value in enumerate(values): + # Use item assignment to ensure this is not using casting: + if value < 0 and dtype1.kind == "u": + # Manually rollover unsigned integers (-1 -> int.max) + value = value + np.iinfo(dtype1).max + 1 + arr1[i] = value + + if dtype2 is None: + if dtype1.char == "?": + values = [bool(v) for v in values] + return arr1, values + + if dtype2.char == "?": + values = [bool(v) for v in values] + + arr2 = np.empty(length, dtype=dtype2) + assert arr2.flags.c_contiguous + assert arr2.flags.aligned + + for i, value in enumerate(values): + # Use item assignment to ensure this is not using casting: + if value < 0 and dtype2.kind == "u": + # Manually rollover unsigned integers (-1 -> int.max) + value = value + np.iinfo(dtype2).max + 1 + arr2[i] = value + + return arr1, arr2, values + + def get_data_variation(self, arr1, arr2, aligned=True, contig=True): + """ + Returns a copy of arr1 that may be non-contiguous or unaligned, and a + matching array for arr2 (although not a copy). + """ + if contig: + stride1 = arr1.dtype.itemsize + stride2 = arr2.dtype.itemsize + elif aligned: + stride1 = 2 * arr1.dtype.itemsize + stride2 = 2 * arr2.dtype.itemsize + else: + stride1 = arr1.dtype.itemsize + 1 + stride2 = arr2.dtype.itemsize + 1 + + max_size1 = len(arr1) * 3 * arr1.dtype.itemsize + 1 + max_size2 = len(arr2) * 3 * arr2.dtype.itemsize + 1 + from_bytes = np.zeros(max_size1, dtype=np.uint8) + to_bytes = np.zeros(max_size2, dtype=np.uint8) + + # Sanity check that the above is large enough: + assert stride1 * len(arr1) <= from_bytes.nbytes + assert stride2 * len(arr2) <= to_bytes.nbytes + + if aligned: + new1 = as_strided(from_bytes[:-1].view(arr1.dtype), + arr1.shape, (stride1,)) + new2 = as_strided(to_bytes[:-1].view(arr2.dtype), + arr2.shape, (stride2,)) + else: + new1 = as_strided(from_bytes[1:].view(arr1.dtype), + arr1.shape, (stride1,)) + new2 = as_strided(to_bytes[1:].view(arr2.dtype), + arr2.shape, (stride2,)) + + new1[...] = arr1 + + if not contig: + # Ensure we did not overwrite bytes that should not be written: + offset = arr1.dtype.itemsize if aligned else 0 + buf = from_bytes[offset::stride1].tobytes() + assert buf.count(b"\0") == len(buf) + + if contig: + assert new1.flags.c_contiguous + assert new2.flags.c_contiguous + else: + assert not new1.flags.c_contiguous + assert not new2.flags.c_contiguous + + if aligned: + assert new1.flags.aligned + assert new2.flags.aligned + else: + assert not new1.flags.aligned or new1.dtype.alignment == 1 + assert not new2.flags.aligned or new2.dtype.alignment == 1 + + return new1, new2 + + @pytest.mark.parametrize("from_Dt", simple_dtypes) + def test_simple_cancast(self, from_Dt): + for to_Dt in simple_dtypes: + cast = get_castingimpl(from_Dt, to_Dt) + + for from_dt in [from_Dt(), from_Dt().newbyteorder()]: + default = cast._resolve_descriptors((from_dt, None))[1][1] + assert default == to_Dt() + del default + + for to_dt in [to_Dt(), to_Dt().newbyteorder()]: + casting, (from_res, to_res), view_off = ( + cast._resolve_descriptors((from_dt, to_dt))) + assert type(from_res) == from_Dt + assert type(to_res) == to_Dt + if view_off is not None: + # If a view is acceptable, this is "no" casting + # and byte order must be matching. + assert casting == Casting.no | Casting.same_value + # The above table lists this as "equivalent", perhaps + # with "same_value" + v = CAST_TABLE[from_Dt][to_Dt] & ~Casting.same_value + assert Casting.equiv == v + # Note that to_res may not be the same as from_dt + assert from_res.isnative == to_res.isnative + else: + if from_Dt == to_Dt: + # Note that to_res may not be the same as from_dt + assert from_res.isnative != to_res.isnative + assert casting == CAST_TABLE[from_Dt][to_Dt] + + if from_Dt is to_Dt: + assert from_dt is from_res + assert to_dt is to_res + + @pytest.mark.filterwarnings("ignore::numpy.exceptions.ComplexWarning") + @pytest.mark.parametrize("from_dt", simple_dtype_instances()) + def test_simple_direct_casts(self, from_dt): + """ + This test checks numeric direct casts for dtypes supported also by the + struct module (plus complex). It tries to be test a wide range of + inputs, but skips over possibly undefined behaviour (e.g. int rollover). + Longdouble and CLongdouble are tested, but only using double precision. + + If this test creates issues, it should possibly just be simplified + or even removed (checking whether unaligned/non-contiguous casts give + the same results is useful, though). + """ + for to_dt in simple_dtype_instances(): + to_dt = to_dt.values[0] + cast = get_castingimpl(type(from_dt), type(to_dt)) + + # print("from_dt", from_dt, "to_dt", to_dt) + casting, (from_res, to_res), view_off = cast._resolve_descriptors( + (from_dt, to_dt)) + + if from_res is not from_dt or to_res is not to_dt: + # Do not test this case, it is handled in multiple steps, + # each of which should is tested individually. + return + + safe = casting <= Casting.safe + del from_res, to_res, casting + + arr1, arr2, values = self.get_data(from_dt, to_dt) + + # print("2", arr1, arr2, cast) + cast._simple_strided_call((arr1, arr2)) + # print("3") + + # Check via python list + assert arr2.tolist() == values + + # Check that the same results are achieved for strided loops + arr1_o, arr2_o = self.get_data_variation(arr1, arr2, True, False) + cast._simple_strided_call((arr1_o, arr2_o)) + + assert_array_equal(arr2_o, arr2) + assert arr2_o.tobytes() == arr2.tobytes() + + # Check if alignment makes a difference, but only if supported + # and only if the alignment can be wrong + if ((from_dt.alignment == 1 and to_dt.alignment == 1) or + not cast._supports_unaligned): + return + + arr1_o, arr2_o = self.get_data_variation(arr1, arr2, False, True) + cast._simple_strided_call((arr1_o, arr2_o)) + + assert_array_equal(arr2_o, arr2) + assert arr2_o.tobytes() == arr2.tobytes() + + arr1_o, arr2_o = self.get_data_variation(arr1, arr2, False, False) + cast._simple_strided_call((arr1_o, arr2_o)) + + assert_array_equal(arr2_o, arr2) + assert arr2_o.tobytes() == arr2.tobytes() + + del arr1_o, arr2_o, cast + + @pytest.mark.parametrize("from_Dt", simple_dtypes) + def test_numeric_to_times(self, from_Dt): + # We currently only implement contiguous loops, so only need to + # test those. + from_dt = from_Dt() + + time_dtypes = [np.dtype("M8"), np.dtype("M8[ms]"), np.dtype("M8[4D]"), + np.dtype("m8"), np.dtype("m8[ms]"), np.dtype("m8[4D]")] + for time_dt in time_dtypes: + cast = get_castingimpl(type(from_dt), type(time_dt)) + + casting, (from_res, to_res), view_off = cast._resolve_descriptors( + (from_dt, time_dt)) + + assert from_res is from_dt + assert to_res is time_dt + del from_res, to_res + + assert casting & CAST_TABLE[from_Dt][type(time_dt)] + assert view_off is None + + int64_dt = np.dtype(np.int64) + arr1, arr2, values = self.get_data(from_dt, int64_dt) + arr2 = arr2.view(time_dt) + arr2[...] = np.datetime64("NaT") + + if time_dt == np.dtype("M8"): + # This is a bit of a strange path, and could probably be removed + arr1[-1] = 0 # ensure at least one value is not NaT + + # The cast currently succeeds, but the values are invalid: + cast._simple_strided_call((arr1, arr2)) + with pytest.raises(ValueError): + str(arr2[-1]) # e.g. conversion to string fails + return + + cast._simple_strided_call((arr1, arr2)) + + assert [int(v) for v in arr2.tolist()] == values + + # Check that the same results are achieved for strided loops + arr1_o, arr2_o = self.get_data_variation(arr1, arr2, True, False) + cast._simple_strided_call((arr1_o, arr2_o)) + + assert_array_equal(arr2_o, arr2) + assert arr2_o.tobytes() == arr2.tobytes() + + @pytest.mark.parametrize( + ["from_dt", "to_dt", "expected_casting", "expected_view_off", + "nom", "denom"], + [("M8[ns]", None, Casting.no, 0, 1, 1), + (str(np.dtype("M8[ns]").newbyteorder()), None, + Casting.equiv, None, 1, 1), + ("M8", "M8[ms]", Casting.safe, 0, 1, 1), + # should be invalid cast: + ("M8[ms]", "M8", Casting.unsafe, None, 1, 1), + ("M8[5ms]", "M8[5ms]", Casting.no, 0, 1, 1), + ("M8[ns]", "M8[ms]", Casting.same_kind, None, 1, 10**6), + ("M8[ms]", "M8[ns]", Casting.safe, None, 10**6, 1), + ("M8[ms]", "M8[7ms]", Casting.same_kind, None, 1, 7), + ("M8[4D]", "M8[1M]", Casting.same_kind, None, None, + # give full values based on NumPy 1.19.x + [-2**63, 0, -1, 1314, -1315, 564442610]), + ("m8[ns]", None, Casting.no, 0, 1, 1), + (str(np.dtype("m8[ns]").newbyteorder()), None, + Casting.equiv, None, 1, 1), + ("m8", "m8[ms]", Casting.safe, 0, 1, 1), + # should be invalid cast: + ("m8[ms]", "m8", Casting.unsafe, None, 1, 1), + ("m8[5ms]", "m8[5ms]", Casting.no, 0, 1, 1), + ("m8[ns]", "m8[ms]", Casting.same_kind, None, 1, 10**6), + ("m8[ms]", "m8[ns]", Casting.safe, None, 10**6, 1), + ("m8[ms]", "m8[7ms]", Casting.same_kind, None, 1, 7), + ("m8[4D]", "m8[1M]", Casting.unsafe, None, None, + # give full values based on NumPy 1.19.x + [-2**63, 0, 0, 1314, -1315, 564442610])]) + def test_time_to_time(self, from_dt, to_dt, + expected_casting, expected_view_off, + nom, denom): + from_dt = np.dtype(from_dt) + if to_dt is not None: + to_dt = np.dtype(to_dt) + + # Test a few values for casting (results generated with NumPy 1.19) + values = np.array([-2**63, 1, 2**63 - 1, 10000, -10000, 2**32]) + values = values.astype(np.dtype("int64").newbyteorder(from_dt.byteorder)) + assert values.dtype.byteorder == from_dt.byteorder + assert np.isnat(values.view(from_dt)[0]) + + DType = type(from_dt) + cast = get_castingimpl(DType, DType) + casting, (from_res, to_res), view_off = cast._resolve_descriptors( + (from_dt, to_dt)) + assert from_res is from_dt + assert to_res is to_dt or to_dt is None + assert casting == expected_casting + assert view_off == expected_view_off + + if nom is not None: + expected_out = (values * nom // denom).view(to_res) + expected_out[0] = "NaT" + else: + expected_out = np.empty_like(values) + expected_out[...] = denom + expected_out = expected_out.view(to_dt) + + orig_arr = values.view(from_dt) + orig_out = np.empty_like(expected_out) + + if casting == Casting.unsafe and (to_dt == "m8" or to_dt == "M8"): # noqa: PLR1714 + # Casting from non-generic to generic units is an error and should + # probably be reported as an invalid cast earlier. + with pytest.raises(ValueError): + cast._simple_strided_call((orig_arr, orig_out)) + return + + for aligned in [True, True]: + for contig in [True, True]: + arr, out = self.get_data_variation( + orig_arr, orig_out, aligned, contig) + out[...] = 0 + cast._simple_strided_call((arr, out)) + assert_array_equal(out.view("int64"), expected_out.view("int64")) + + def string_with_modified_length(self, dtype, change_length): + fact = 1 if dtype.char == "S" else 4 + length = dtype.itemsize // fact + change_length + return np.dtype(f"{dtype.byteorder}{dtype.char}{length}") + + @pytest.mark.parametrize("other_DT", simple_dtypes) + @pytest.mark.parametrize("string_char", ["S", "U"]) + def test_string_cancast(self, other_DT, string_char): + fact = 1 if string_char == "S" else 4 + + string_DT = type(np.dtype(string_char)) + cast = get_castingimpl(other_DT, string_DT) + + other_dt = other_DT() + expected_length = get_expected_stringlength(other_dt) + string_dt = np.dtype(f"{string_char}{expected_length}") + + safety, (res_other_dt, res_dt), view_off = cast._resolve_descriptors( + (other_dt, None)) + assert res_dt.itemsize == expected_length * fact + assert safety == Casting.safe # we consider to string casts "safe" + assert view_off is None + assert isinstance(res_dt, string_DT) + + # These casts currently implement changing the string length, so + # check the cast-safety for too long/fixed string lengths: + for change_length in [-1, 0, 1]: + if change_length >= 0: + expected_safety = Casting.safe + else: + expected_safety = Casting.same_kind + + to_dt = self.string_with_modified_length(string_dt, change_length) + safety, (_, res_dt), view_off = cast._resolve_descriptors( + (other_dt, to_dt)) + assert res_dt is to_dt + assert safety == expected_safety + assert view_off is None + + # The opposite direction is always considered unsafe: + cast = get_castingimpl(string_DT, other_DT) + + safety, _, view_off = cast._resolve_descriptors((string_dt, other_dt)) + assert safety == Casting.unsafe + assert view_off is None + + cast = get_castingimpl(string_DT, other_DT) + safety, (_, res_dt), view_off = cast._resolve_descriptors( + (string_dt, None)) + assert safety == Casting.unsafe + assert view_off is None + assert other_dt is res_dt # returns the singleton for simple dtypes + + @pytest.mark.parametrize("string_char", ["S", "U"]) + @pytest.mark.parametrize("other_dt", simple_dtype_instances()) + def test_simple_string_casts_roundtrip(self, other_dt, string_char): + """ + Tests casts from and to string by checking the roundtripping property. + + The test also covers some string to string casts (but not all). + + If this test creates issues, it should possibly just be simplified + or even removed (checking whether unaligned/non-contiguous casts give + the same results is useful, though). + """ + string_DT = type(np.dtype(string_char)) + + cast = get_castingimpl(type(other_dt), string_DT) + cast_back = get_castingimpl(string_DT, type(other_dt)) + _, (res_other_dt, string_dt), _ = cast._resolve_descriptors( + (other_dt, None)) + + if res_other_dt is not other_dt: + # do not support non-native byteorder, skip test in that case + assert other_dt.byteorder != res_other_dt.byteorder + return + + orig_arr, values = self.get_data(other_dt, None) + str_arr = np.zeros(len(orig_arr), dtype=string_dt) + string_dt_short = self.string_with_modified_length(string_dt, -1) + str_arr_short = np.zeros(len(orig_arr), dtype=string_dt_short) + string_dt_long = self.string_with_modified_length(string_dt, 1) + str_arr_long = np.zeros(len(orig_arr), dtype=string_dt_long) + + assert not cast._supports_unaligned # if support is added, should test + assert not cast_back._supports_unaligned + + for contig in [True, False]: + other_arr, str_arr = self.get_data_variation( + orig_arr, str_arr, True, contig) + _, str_arr_short = self.get_data_variation( + orig_arr, str_arr_short.copy(), True, contig) + _, str_arr_long = self.get_data_variation( + orig_arr, str_arr_long, True, contig) + + cast._simple_strided_call((other_arr, str_arr)) + + cast._simple_strided_call((other_arr, str_arr_short)) + assert_array_equal(str_arr.astype(string_dt_short), str_arr_short) + + cast._simple_strided_call((other_arr, str_arr_long)) + assert_array_equal(str_arr, str_arr_long) + + if other_dt.kind == "b": + # Booleans do not roundtrip + continue + + other_arr[...] = 0 + cast_back._simple_strided_call((str_arr, other_arr)) + assert_array_equal(orig_arr, other_arr) + + other_arr[...] = 0 + cast_back._simple_strided_call((str_arr_long, other_arr)) + assert_array_equal(orig_arr, other_arr) + + @pytest.mark.parametrize("other_dt", ["S8", "U8"]) + @pytest.mark.parametrize("string_char", ["S", "U"]) + def test_string_to_string_cancast(self, other_dt, string_char): + other_dt = np.dtype(other_dt) + + fact = 1 if string_char == "S" else 4 + div = 1 if other_dt.char == "S" else 4 + + string_DT = type(np.dtype(string_char)) + cast = get_castingimpl(type(other_dt), string_DT) + + expected_length = other_dt.itemsize // div + string_dt = np.dtype(f"{string_char}{expected_length}") + + safety, (res_other_dt, res_dt), view_off = cast._resolve_descriptors( + (other_dt, None)) + assert res_dt.itemsize == expected_length * fact + assert isinstance(res_dt, string_DT) + + expected_view_off = None + if other_dt.char == string_char: + if other_dt.isnative: + expected_safety = Casting.no + expected_view_off = 0 + else: + expected_safety = Casting.equiv + elif string_char == "U": + expected_safety = Casting.safe + else: + expected_safety = Casting.unsafe + + assert view_off == expected_view_off + assert expected_safety == safety + + for change_length in [-1, 0, 1]: + to_dt = self.string_with_modified_length(string_dt, change_length) + safety, (_, res_dt), view_off = cast._resolve_descriptors( + (other_dt, to_dt)) + + assert res_dt is to_dt + if change_length <= 0: + assert view_off == expected_view_off + else: + assert view_off is None + if expected_safety == Casting.unsafe: + assert safety == expected_safety + elif change_length < 0: + assert safety == Casting.same_kind + elif change_length == 0: + assert safety == expected_safety + elif change_length > 0: + assert safety == Casting.safe + + @pytest.mark.parametrize("order1", [">", "<"]) + @pytest.mark.parametrize("order2", [">", "<"]) + def test_unicode_byteswapped_cast(self, order1, order2): + # Very specific tests (not using the castingimpl directly) + # that tests unicode bytedwaps including for unaligned array data. + dtype1 = np.dtype(f"{order1}U30") + dtype2 = np.dtype(f"{order2}U30") + data1 = np.empty(30 * 4 + 1, dtype=np.uint8)[1:].view(dtype1) + data2 = np.empty(30 * 4 + 1, dtype=np.uint8)[1:].view(dtype2) + if dtype1.alignment != 1: + # alignment should always be >1, but skip the check if not + assert not data1.flags.aligned + assert not data2.flags.aligned + + element = "this is a ünicode string‽" + data1[()] = element + # Test both `data1` and `data1.copy()` (which should be aligned) + for data in [data1, data1.copy()]: + data2[...] = data1 + assert data2[()] == element + assert data2.copy()[()] == element + + def test_void_to_string_special_case(self): + # Cover a small special case in void to string casting that could + # probably just as well be turned into an error (compare + # `test_object_to_parametric_internal_error` below). + assert np.array([], dtype="V5").astype("S").dtype.itemsize == 5 + assert np.array([], dtype="V5").astype("U").dtype.itemsize == 4 * 5 + + def test_object_to_parametric_internal_error(self): + # We reject casting from object to a parametric type, without + # figuring out the correct instance first. + object_dtype = type(np.dtype(object)) + other_dtype = type(np.dtype(str)) + cast = get_castingimpl(object_dtype, other_dtype) + with pytest.raises(TypeError, + match="casting from object to the parametric DType"): + cast._resolve_descriptors((np.dtype("O"), None)) + + @pytest.mark.parametrize("dtype", simple_dtype_instances()) + def test_object_and_simple_resolution(self, dtype): + # Simple test to exercise the cast when no instance is specified + object_dtype = type(np.dtype(object)) + cast = get_castingimpl(object_dtype, type(dtype)) + + safety, (_, res_dt), view_off = cast._resolve_descriptors( + (np.dtype("O"), dtype)) + assert safety == Casting.unsafe + assert view_off is None + assert res_dt is dtype + + safety, (_, res_dt), view_off = cast._resolve_descriptors( + (np.dtype("O"), None)) + assert safety == Casting.unsafe + assert view_off is None + assert res_dt == dtype.newbyteorder("=") + + @pytest.mark.parametrize("dtype", simple_dtype_instances()) + def test_simple_to_object_resolution(self, dtype): + # Simple test to exercise the cast when no instance is specified + object_dtype = type(np.dtype(object)) + cast = get_castingimpl(type(dtype), object_dtype) + + safety, (_, res_dt), view_off = cast._resolve_descriptors( + (dtype, None)) + assert safety == Casting.safe + assert view_off is None + assert res_dt is np.dtype("O") + + @pytest.mark.parametrize("casting", ["no", "unsafe"]) + def test_void_and_structured_with_subarray(self, casting): + # test case corresponding to gh-19325 + dtype = np.dtype([("foo", " casts may succeed or fail, but a NULL'ed array must + # behave the same as one filled with None's. + arr_normal = np.array([None] * 5) + arr_NULLs = np.empty_like(arr_normal) + ctypes.memset(arr_NULLs.ctypes.data, 0, arr_NULLs.nbytes) + # If the check fails (maybe it should) the test would lose its purpose: + assert arr_NULLs.tobytes() == b"\x00" * arr_NULLs.nbytes + + try: + expected = arr_normal.astype(dtype) + except TypeError: + with pytest.raises(TypeError): + arr_NULLs.astype(dtype) + else: + assert_array_equal(expected, arr_NULLs.astype(dtype)) + + @pytest.mark.parametrize("dtype", + np.typecodes["AllInteger"] + np.typecodes["AllFloat"]) + def test_nonstandard_bool_to_other(self, dtype): + # simple test for casting bool_ to numeric types, which should not + # expose the detail that NumPy bools can sometimes take values other + # than 0 and 1. See also gh-19514. + nonstandard_bools = np.array([0, 3, -7], dtype=np.int8).view(bool) + res = nonstandard_bools.astype(dtype) + expected = [0, 1, 1] + assert_array_equal(res, expected) + + @pytest.mark.parametrize("to_dtype", + np.typecodes["AllInteger"] + np.typecodes["AllFloat"]) + @pytest.mark.parametrize("from_dtype", + np.typecodes["AllInteger"] + np.typecodes["AllFloat"]) + @pytest.mark.filterwarnings("ignore::numpy.exceptions.ComplexWarning") + def test_same_value_overflow(self, from_dtype, to_dtype): + if from_dtype == to_dtype: + return + top1 = 0 + top2 = 0 + try: + top1 = np.iinfo(from_dtype).max + except ValueError: + top1 = np.finfo(from_dtype).max + try: + top2 = np.iinfo(to_dtype).max + except ValueError: + top2 = np.finfo(to_dtype).max + # No need to test if top2 > top1, since the test will also do the + # reverse dtype matching. Catch then warning if the comparison warns, + # i.e. np.int16(65535) < np.float16(6.55e4) + with warnings.catch_warnings(record=True): + warnings.simplefilter("always", RuntimeWarning) + if top2 >= top1: + # will be tested when the dtypes are reversed + return + # Happy path + arr1 = np.array([0] * 10, dtype=from_dtype) + arr2 = np.array([0] * 10, dtype=to_dtype) + arr1_astype = arr1.astype(to_dtype, casting='same_value') + assert_equal(arr1_astype, arr2, strict=True) + # Make it overflow, both aligned and unaligned + arr1[0] = top1 + aligned = np.empty(arr1.itemsize * arr1.size + 1, 'uint8') + unaligned = aligned[1:].view(arr1.dtype) + unaligned[:] = arr1 + with pytest.raises(ValueError): + # Casting float to float with overflow should raise + # RuntimeWarning (fperror) + # Casting float to int with overflow sometimes raises + # RuntimeWarning (fperror) + # Casting with overflow and 'same_value', should raise ValueError + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter("always", RuntimeWarning) + arr1.astype(to_dtype, casting='same_value') + assert len(w) < 2 + with pytest.raises(ValueError): + # again, unaligned + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter("always", RuntimeWarning) + unaligned.astype(to_dtype, casting='same_value') + assert len(w) < 2 + + @pytest.mark.parametrize("to_dtype", + np.typecodes["AllInteger"]) + @pytest.mark.parametrize("from_dtype", + np.typecodes["AllFloat"]) + @pytest.mark.filterwarnings("ignore::RuntimeWarning") + def test_same_value_float_to_int(self, from_dtype, to_dtype): + # Should not raise, since the values can round trip + arr1 = np.arange(10, dtype=from_dtype) + aligned = np.empty(arr1.itemsize * arr1.size + 1, 'uint8') + unaligned = aligned[1:].view(arr1.dtype) + unaligned[:] = arr1 + arr2 = np.arange(10, dtype=to_dtype) + assert_array_equal(arr1.astype(to_dtype, casting='same_value'), arr2) + assert_array_equal(unaligned.astype(to_dtype, casting='same_value'), arr2) + + # Should raise, since values cannot round trip. Might warn too about + # FPE errors + arr1_66 = arr1 + 0.666 + unaligned_66 = unaligned + 0.66 + with pytest.raises(ValueError): + arr1_66.astype(to_dtype, casting='same_value') + with pytest.raises(ValueError): + unaligned_66.astype(to_dtype, casting='same_value') + + @pytest.mark.parametrize("to_dtype", + np.typecodes["AllInteger"]) + @pytest.mark.parametrize("from_dtype", + np.typecodes["AllFloat"]) + @pytest.mark.filterwarnings("ignore::RuntimeWarning") + def test_same_value_float_to_int_scalar(self, from_dtype, to_dtype): + # Should not raise, since the values can round trip + s1 = np.array(10, dtype=from_dtype) + assert s1.astype(to_dtype, casting='same_value') == 10 + + # Should raise, since values cannot round trip + s1_66 = s1 + 0.666 + with pytest.raises(ValueError): + s1_66.astype(to_dtype, casting='same_value') + + @pytest.mark.parametrize("value", [np.nan, np.inf, -np.inf]) + @pytest.mark.filterwarnings("ignore::numpy.exceptions.ComplexWarning") + @pytest.mark.filterwarnings("ignore::RuntimeWarning") + def test_same_value_naninf(self, value): + # These work, but may trigger FPE warnings on macOS + np.array([value], dtype=np.half).astype(np.cdouble, casting='same_value') + np.array([value], dtype=np.half).astype(np.double, casting='same_value') + np.array([value], dtype=np.float32).astype(np.cdouble, casting='same_value') + np.array([value], dtype=np.float32).astype(np.double, casting='same_value') + np.array([value], dtype=np.float32).astype(np.half, casting='same_value') + np.array([value], dtype=np.complex64).astype(np.half, casting='same_value') + # These fail + with pytest.raises(ValueError): + np.array([value], dtype=np.half).astype(np.int64, casting='same_value') + with pytest.raises(ValueError): + np.array([value], dtype=np.complex64).astype(np.int64, casting='same_value') + with pytest.raises(ValueError): + np.array([value], dtype=np.float32).astype(np.int64, casting='same_value') + + @pytest.mark.filterwarnings("ignore::numpy.exceptions.ComplexWarning") + def test_same_value_complex(self): + arr = np.array([complex(1, 1)], dtype=np.cdouble) + # This works + arr.astype(np.complex64, casting='same_value') + # Casting with a non-zero imag part fails + with pytest.raises(ValueError): + arr.astype(np.float32, casting='same_value') + + def test_same_value_scalar(self): + i = np.array(123, dtype=np.int64) + f = np.array(123, dtype=np.float64) + assert i.astype(np.float64, casting='same_value') == f + assert f.astype(np.int64, casting='same_value') == f diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_conversion_utils.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_conversion_utils.py new file mode 100644 index 0000000000000000000000000000000000000000..067c2973c592552f787692d674fdec1608861140 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_conversion_utils.py @@ -0,0 +1,209 @@ +""" +Tests for numpy/_core/src/multiarray/conversion_utils.c +""" +import re + +import pytest + +import numpy._core._multiarray_tests as mt +from numpy._core.multiarray import CLIP, RAISE, WRAP +from numpy.testing import assert_raises + + +class StringConverterTestCase: + allow_bytes = True + case_insensitive = True + exact_match = False + warn = True + + def _check_value_error(self, val): + pattern = fr'\(got {re.escape(repr(val))}\)' + with pytest.raises(ValueError, match=pattern) as exc: + self.conv(val) + + def _check_conv_assert_warn(self, val, expected): + if self.warn: + with assert_raises(ValueError) as exc: + assert self.conv(val) == expected + else: + assert self.conv(val) == expected + + def _check(self, val, expected): + """Takes valid non-deprecated inputs for converters, + runs converters on inputs, checks correctness of outputs, + warnings and errors""" + assert self.conv(val) == expected + + if self.allow_bytes: + assert self.conv(val.encode('ascii')) == expected + else: + with pytest.raises(TypeError): + self.conv(val.encode('ascii')) + + if len(val) != 1: + if self.exact_match: + self._check_value_error(val[:1]) + self._check_value_error(val + '\0') + else: + self._check_conv_assert_warn(val[:1], expected) + + if self.case_insensitive: + if val != val.lower(): + self._check_conv_assert_warn(val.lower(), expected) + if val != val.upper(): + self._check_conv_assert_warn(val.upper(), expected) + else: + if val != val.lower(): + self._check_value_error(val.lower()) + if val != val.upper(): + self._check_value_error(val.upper()) + + def test_wrong_type(self): + # common cases which apply to all the below + with pytest.raises(TypeError): + self.conv({}) + with pytest.raises(TypeError): + self.conv([]) + + def test_wrong_value(self): + # nonsense strings + self._check_value_error('') + self._check_value_error('\N{greek small letter pi}') + + if self.allow_bytes: + self._check_value_error(b'') + # bytes which can't be converted to strings via utf8 + self._check_value_error(b"\xFF") + if self.exact_match: + self._check_value_error("there's no way this is supported") + + +class TestByteorderConverter(StringConverterTestCase): + """ Tests of PyArray_ByteorderConverter """ + conv = mt.run_byteorder_converter + warn = False + + def test_valid(self): + for s in ['big', '>']: + self._check(s, 'NPY_BIG') + for s in ['little', '<']: + self._check(s, 'NPY_LITTLE') + for s in ['native', '=']: + self._check(s, 'NPY_NATIVE') + for s in ['ignore', '|']: + self._check(s, 'NPY_IGNORE') + for s in ['swap']: + self._check(s, 'NPY_SWAP') + + +class TestSortkindConverter(StringConverterTestCase): + """ Tests of PyArray_SortkindConverter """ + conv = mt.run_sortkind_converter + warn = False + + def test_valid(self): + self._check('quicksort', 'NPY_QUICKSORT') + self._check('heapsort', 'NPY_HEAPSORT') + self._check('mergesort', 'NPY_STABLESORT') # alias + self._check('stable', 'NPY_STABLESORT') + + +class TestSelectkindConverter(StringConverterTestCase): + """ Tests of PyArray_SelectkindConverter """ + conv = mt.run_selectkind_converter + case_insensitive = False + exact_match = True + + def test_valid(self): + self._check('introselect', 'NPY_INTROSELECT') + + +class TestSearchsideConverter(StringConverterTestCase): + """ Tests of PyArray_SearchsideConverter """ + conv = mt.run_searchside_converter + + def test_valid(self): + self._check('left', 'NPY_SEARCHLEFT') + self._check('right', 'NPY_SEARCHRIGHT') + + +class TestOrderConverter(StringConverterTestCase): + """ Tests of PyArray_OrderConverter """ + conv = mt.run_order_converter + warn = False + + def test_valid(self): + self._check('c', 'NPY_CORDER') + self._check('f', 'NPY_FORTRANORDER') + self._check('a', 'NPY_ANYORDER') + self._check('k', 'NPY_KEEPORDER') + + def test_flatten_invalid_order(self): + # invalid after gh-14596 + with pytest.raises(ValueError): + self.conv('Z') + for order in [False, True, 0, 8]: + with pytest.raises(TypeError): + self.conv(order) + + +class TestClipmodeConverter(StringConverterTestCase): + """ Tests of PyArray_ClipmodeConverter """ + conv = mt.run_clipmode_converter + + def test_valid(self): + self._check('clip', 'NPY_CLIP') + self._check('wrap', 'NPY_WRAP') + self._check('raise', 'NPY_RAISE') + + # integer values allowed here + assert self.conv(CLIP) == 'NPY_CLIP' + assert self.conv(WRAP) == 'NPY_WRAP' + assert self.conv(RAISE) == 'NPY_RAISE' + + +class TestCastingConverter(StringConverterTestCase): + """ Tests of PyArray_CastingConverter """ + conv = mt.run_casting_converter + case_insensitive = False + exact_match = True + + def test_valid(self): + self._check("no", "NPY_NO_CASTING") + self._check("equiv", "NPY_EQUIV_CASTING") + self._check("safe", "NPY_SAFE_CASTING") + self._check("unsafe", "NPY_UNSAFE_CASTING") + self._check("same_kind", "NPY_SAME_KIND_CASTING") + + def test_invalid(self): + # Currently, 'same_value' is supported only in ndarray.astype + self._check_value_error("same_value") + +class TestIntpConverter: + """ Tests of PyArray_IntpConverter """ + conv = mt.run_intp_converter + + def test_basic(self): + assert self.conv(1) == (1,) + assert self.conv((1, 2)) == (1, 2) + assert self.conv([1, 2]) == (1, 2) + assert self.conv(()) == () + + def test_none(self): + with pytest.raises(TypeError): + assert self.conv(None) == () + + def test_float(self): + with pytest.raises(TypeError): + self.conv(1.0) + with pytest.raises(TypeError): + self.conv([1, 1.0]) + + def test_too_large(self): + with pytest.raises(ValueError): + self.conv(2**64) + + def test_too_many_dims(self): + assert self.conv([1] * 64) == (1,) * 64 + with pytest.raises(ValueError): + self.conv([1] * 65) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_cpu_dispatcher.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_cpu_dispatcher.py new file mode 100644 index 0000000000000000000000000000000000000000..01fd53a3dbd09c4b0ab76eab2c9c4877dbf5340b --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_cpu_dispatcher.py @@ -0,0 +1,48 @@ +from numpy._core import _umath_tests +from numpy._core._multiarray_umath import ( + __cpu_baseline__, + __cpu_dispatch__, + __cpu_features__, +) +from numpy.testing import assert_equal + + +def test_dispatcher(): + """ + Testing the utilities of the CPU dispatcher + """ + targets = ( + "X86_V2", "X86_V3", + "VSX", "VSX2", "VSX3", + "NEON", "ASIMD", "ASIMDHP", + "VX", "VXE", "LSX", "RVV" + ) + highest_sfx = "" # no suffix for the baseline + all_sfx = [] + for feature in reversed(targets): + # skip baseline features, by the default `CCompilerOpt` do not generate separated objects + # for the baseline, just one object combined all of them via 'baseline' option + # within the configuration statements. + if feature in __cpu_baseline__: + continue + # check compiler and running machine support + if feature not in __cpu_dispatch__ or not __cpu_features__[feature]: + continue + + if not highest_sfx: + highest_sfx = "_" + feature + all_sfx.append("func" + "_" + feature) + + test = _umath_tests.test_dispatch() + assert_equal(test["func"], "func" + highest_sfx) + assert_equal(test["var"], "var" + highest_sfx) + + if highest_sfx: + assert_equal(test["func_xb"], "func" + highest_sfx) + assert_equal(test["var_xb"], "var" + highest_sfx) + else: + assert_equal(test["func_xb"], "nobase") + assert_equal(test["var_xb"], "nobase") + + all_sfx.append("func") # add the baseline + assert_equal(test["all"], all_sfx) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_cpu_features.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_cpu_features.py new file mode 100644 index 0000000000000000000000000000000000000000..1a10863ea955fa5fbfa2239b0a2f34b51c79383f --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_cpu_features.py @@ -0,0 +1,482 @@ +import os +import pathlib +import platform +import re +import subprocess +import sys + +import pytest + +from numpy._core._multiarray_umath import ( + __cpu_baseline__, + __cpu_dispatch__, + __cpu_features__, +) + + +def assert_features_equal(actual, desired, fname): + __tracebackhide__ = True # Hide traceback for py.test + actual, desired = str(actual), str(desired) + if actual == desired: + return + detected = str(__cpu_features__).replace("'", "") + try: + with open("/proc/cpuinfo") as fd: + cpuinfo = fd.read(2048) + except Exception as err: + cpuinfo = str(err) + + try: + import subprocess + auxv = subprocess.check_output(['/bin/true'], env={"LD_SHOW_AUXV": "1"}) + auxv = auxv.decode() + except Exception as err: + auxv = str(err) + + import textwrap + error_report = textwrap.indent( +f""" +########################################### +### Extra debugging information +########################################### +------------------------------------------- +--- NumPy Detections +------------------------------------------- +{detected} +------------------------------------------- +--- SYS / CPUINFO +------------------------------------------- +{cpuinfo}.... +------------------------------------------- +--- SYS / AUXV +------------------------------------------- +{auxv} +""", prefix='\r') + + raise AssertionError(( + "Failure Detection\n" + " NAME: '%s'\n" + " ACTUAL: %s\n" + " DESIRED: %s\n" + "%s" + ) % (fname, actual, desired, error_report)) + +def _text_to_list(txt): + out = txt.strip("][\n").replace("'", "").split(', ') + return None if out[0] == "" else out + +class AbstractTest: + features = [] + features_groups = {} + features_map = {} + features_flags = set() + + def load_flags(self): + # a hook + pass + + def test_features(self): + self.load_flags() + for gname, features in self.features_groups.items(): + test_features = [self.cpu_have(f) for f in features] + assert_features_equal(__cpu_features__.get(gname), all(test_features), gname) + + for feature_name in self.features: + cpu_have = self.cpu_have(feature_name) + npy_have = __cpu_features__.get(feature_name) + assert_features_equal(npy_have, cpu_have, feature_name) + + def cpu_have(self, feature_name): + map_names = self.features_map.get(feature_name, feature_name) + if isinstance(map_names, str): + return map_names in self.features_flags + return any(f in self.features_flags for f in map_names) + + def load_flags_cpuinfo(self, magic_key): + self.features_flags = self.get_cpuinfo_item(magic_key) + + def get_cpuinfo_item(self, magic_key): + values = set() + with open('/proc/cpuinfo') as fd: + for line in fd: + if not line.startswith(magic_key): + continue + flags_value = [s.strip() for s in line.split(':', 1)] + if len(flags_value) == 2: + values = values.union(flags_value[1].upper().split()) + return values + + def load_flags_auxv(self): + auxv = subprocess.check_output(['/bin/true'], env={"LD_SHOW_AUXV": "1"}) + for at in auxv.split(b'\n'): + if not at.startswith(b"AT_HWCAP"): + continue + hwcap_value = [s.strip() for s in at.split(b':', 1)] + if len(hwcap_value) == 2: + self.features_flags = self.features_flags.union( + hwcap_value[1].upper().decode().split() + ) + +@pytest.mark.skipif( + sys.platform == 'emscripten', + reason=( + "The subprocess module is not available on WASM platforms and" + " therefore this test class cannot be properly executed." + ), +) +@pytest.mark.thread_unsafe(reason="setup & tmp_path_factory threads-unsafe, modifies environment variables") +class TestEnvPrivation: + cwd = pathlib.Path(__file__).parent.resolve() + env = os.environ.copy() + _enable = os.environ.pop('NPY_ENABLE_CPU_FEATURES', None) + _disable = os.environ.pop('NPY_DISABLE_CPU_FEATURES', None) + SUBPROCESS_ARGS = {"cwd": cwd, "capture_output": True, "text": True, "check": True} + unavailable_feats = [ + feat for feat in __cpu_dispatch__ if not __cpu_features__[feat] + ] + UNAVAILABLE_FEAT = ( + None if len(unavailable_feats) == 0 + else unavailable_feats[0] + ) + BASELINE_FEAT = None if len(__cpu_baseline__) == 0 else __cpu_baseline__[0] + SCRIPT = """ +def main(): + from numpy._core._multiarray_umath import ( + __cpu_features__, + __cpu_dispatch__ + ) + + detected = [feat for feat in __cpu_dispatch__ if __cpu_features__[feat]] + print(detected) + +if __name__ == "__main__": + main() + """ + + @pytest.fixture(autouse=True) + def setup_class(self, tmp_path_factory): + file = tmp_path_factory.mktemp("runtime_test_script") + file /= "_runtime_detect.py" + file.write_text(self.SCRIPT) + self.file = file + + def _run(self): + return subprocess.run( + [sys.executable, self.file], + env=self.env, + **self.SUBPROCESS_ARGS, + ) + + # Helper function mimicking pytest.raises for subprocess call + def _expect_error( + self, + msg, + err_type, + no_error_msg="Failed to generate error" + ): + try: + self._run() + except subprocess.CalledProcessError as e: + assertion_message = f"Expected: {msg}\nGot: {e.stderr}" + assert re.search(msg, e.stderr), assertion_message + + assertion_message = ( + f"Expected error of type: {err_type}; see full " + f"error:\n{e.stderr}" + ) + assert re.search(err_type, e.stderr), assertion_message + else: + assert False, no_error_msg + + def setup_method(self): + """Ensure that the environment is reset""" + self.env = os.environ.copy() + + def test_runtime_feature_selection(self): + """ + Ensure that when selecting `NPY_ENABLE_CPU_FEATURES`, only the + features exactly specified are dispatched. + """ + + # Capture runtime-enabled features + out = self._run() + non_baseline_features = _text_to_list(out.stdout) + + if non_baseline_features is None: + pytest.skip( + "No dispatchable features outside of baseline detected." + ) + feature = non_baseline_features[0] + + # Capture runtime-enabled features when `NPY_ENABLE_CPU_FEATURES` is + # specified + self.env['NPY_ENABLE_CPU_FEATURES'] = feature + out = self._run() + enabled_features = _text_to_list(out.stdout) + + # Ensure that only one feature is enabled, and it is exactly the one + # specified by `NPY_ENABLE_CPU_FEATURES` + assert set(enabled_features) == {feature} + + if len(non_baseline_features) < 2: + pytest.skip("Only one non-baseline feature detected.") + # Capture runtime-enabled features when `NPY_ENABLE_CPU_FEATURES` is + # specified + self.env['NPY_ENABLE_CPU_FEATURES'] = ",".join(non_baseline_features) + out = self._run() + enabled_features = _text_to_list(out.stdout) + + # Ensure that both features are enabled, and they are exactly the ones + # specified by `NPY_ENABLE_CPU_FEATURES` + assert set(enabled_features) == set(non_baseline_features) + + @pytest.mark.parametrize("enabled, disabled", + [ + ("feature", "feature"), + ("feature", "same"), + ]) + def test_both_enable_disable_set(self, enabled, disabled): + """ + Ensure that when both environment variables are set then an + ImportError is thrown + """ + self.env['NPY_ENABLE_CPU_FEATURES'] = enabled + self.env['NPY_DISABLE_CPU_FEATURES'] = disabled + msg = "Both NPY_DISABLE_CPU_FEATURES and NPY_ENABLE_CPU_FEATURES" + err_type = "ImportError" + self._expect_error(msg, err_type) + + @pytest.mark.skipif( + not __cpu_dispatch__, + reason=( + "NPY_*_CPU_FEATURES only parsed if " + "`__cpu_dispatch__` is non-empty" + ) + ) + @pytest.mark.parametrize("action", ["ENABLE", "DISABLE"]) + def test_variable_too_long(self, action): + """ + Test that an error is thrown if the environment variables are too long + to be processed. Current limit is 1024, but this may change later. + """ + MAX_VAR_LENGTH = 1024 + # Actual length is MAX_VAR_LENGTH + 1 due to null-termination + self.env[f'NPY_{action}_CPU_FEATURES'] = "t" * MAX_VAR_LENGTH + msg = ( + f"Length of environment variable 'NPY_{action}_CPU_FEATURES' is " + f"{MAX_VAR_LENGTH + 1}, only {MAX_VAR_LENGTH} accepted" + ) + err_type = "RuntimeError" + self._expect_error(msg, err_type) + + @pytest.mark.skipif( + not __cpu_dispatch__, + reason=( + "NPY_*_CPU_FEATURES only parsed if " + "`__cpu_dispatch__` is non-empty" + ) + ) + def test_impossible_feature_disable(self): + """ + Test that a RuntimeError is thrown if an impossible feature-disabling + request is made. This includes disabling a baseline feature. + """ + + if self.BASELINE_FEAT is None: + pytest.skip("There are no unavailable features to test with") + bad_feature = self.BASELINE_FEAT + self.env['NPY_DISABLE_CPU_FEATURES'] = bad_feature + msg = ( + f"You cannot disable CPU feature '{bad_feature}', since it is " + "part of the baseline optimizations" + ) + err_type = "RuntimeError" + self._expect_error(msg, err_type) + + def test_impossible_feature_enable(self): + """ + Test that a RuntimeError is thrown if an impossible feature-enabling + request is made. This includes enabling a feature not supported by the + machine, or disabling a baseline optimization. + """ + + if self.UNAVAILABLE_FEAT is None: + pytest.skip("There are no unavailable features to test with") + bad_feature = self.UNAVAILABLE_FEAT + self.env['NPY_ENABLE_CPU_FEATURES'] = bad_feature + msg = ( + f"You cannot enable CPU features \\({bad_feature}\\), since " + "they are not supported by your machine." + ) + err_type = "RuntimeError" + self._expect_error(msg, err_type) + + # Ensure that it fails even when providing garbage in addition + feats = f"{bad_feature}, Foobar" + self.env['NPY_ENABLE_CPU_FEATURES'] = feats + msg = ( + f"You cannot enable CPU features \\({bad_feature}\\), since they " + "are not supported by your machine." + ) + self._expect_error(msg, err_type) + + if self.BASELINE_FEAT is not None: + # Ensure that only the bad feature gets reported + feats = f"{bad_feature}, {self.BASELINE_FEAT}" + self.env['NPY_ENABLE_CPU_FEATURES'] = feats + msg = ( + f"You cannot enable CPU features \\({bad_feature}\\), since " + "they are not supported by your machine." + ) + self._expect_error(msg, err_type) + + +is_linux = sys.platform.startswith('linux') +is_cygwin = sys.platform.startswith('cygwin') +machine = platform.machine() +is_x86 = re.match(r"^(amd64|x86|i386|i686)", machine, re.IGNORECASE) +@pytest.mark.skipif( + not (is_linux or is_cygwin) or not is_x86, reason="Only for Linux and x86" +) +class Test_X86_Features(AbstractTest): + features = [] + + features_groups = { + "X86_V2": [ + "SSE", "SSE2", "SSE3", "SSSE3", "SSE41", "SSE42", + "POPCNT", "LAHF", "CX16" + ], + } + features_groups["X86_V3"] = features_groups["X86_V2"] + [ + "AVX", "AVX2", "FMA3", "BMI", "BMI2", + "LZCNT", "F16C", "MOVBE" + ] + features_groups["X86_V4"] = features_groups["X86_V3"] + [ + "AVX512F", "AVX512CD", "AVX512BW", "AVX512DQ", "AVX512VL" + ] + features_groups["AVX512_ICL"] = features_groups["X86_V4"] + [ + "AVX512IFMA", "AVX512VBMI", "AVX512VNNI", + "AVX512VBMI2", "AVX512BITALG", "AVX512VPOPCNTDQ", + "VAES", "VPCLMULQDQ", "GFNI" + ] + features_groups["AVX512_SPR"] = features_groups["AVX512_ICL"] + ["AVX512FP16", "AVX512BF16"] + + features_map = { + "SSE3": "PNI", "SSE41": "SSE4_1", "SSE42": "SSE4_2", "FMA3": "FMA", + "BMI": "BMI1", "LZCNT": "ABM", "LAHF": "LAHF_LM", + "AVX512VNNI": "AVX512_VNNI", "AVX512BITALG": "AVX512_BITALG", + "AVX512VBMI2": "AVX512_VBMI2", "AVX5124FMAPS": "AVX512_4FMAPS", + "AVX5124VNNIW": "AVX512_4VNNIW", "AVX512VPOPCNTDQ": "AVX512_VPOPCNTDQ", + "AVX512FP16": "AVX512_FP16", "AVX512BF16": "AVX512_BF16" + } + + def load_flags(self): + self.load_flags_cpuinfo("flags") + + +is_power = re.match(r"^(powerpc|ppc)64", machine, re.IGNORECASE) +@pytest.mark.skipif(not is_linux or not is_power, reason="Only for Linux and Power") +class Test_POWER_Features(AbstractTest): + features = ["VSX", "VSX2", "VSX3", "VSX4"] + features_map = { + "VSX": "ARCH_2_06", + "VSX2": "ARCH_2_07", + "VSX3": "ARCH_3_00", + "VSX4": "ARCH_3_1B" + } + + def load_flags(self): + self.load_flags_auxv() + platform = self._get_platform() + + if platform: + power_match = re.search(r'power(\d+)', platform, re.IGNORECASE) + if power_match: + power_gen = int(power_match.group(1)) + if power_gen >= 7: + self.features_flags.add("ARCH_2_06") + if power_gen >= 8: + self.features_flags.add("ARCH_2_07") + if power_gen >= 9: + self.features_flags.add("ARCH_3_00") + if power_gen >= 10: + self.features_flags.add("ARCH_3_1B") + + def _get_platform(self): + """Get the AT_PLATFORM value from AUXV""" + try: + auxv = subprocess.check_output(['/bin/true'], env={"LD_SHOW_AUXV": "1"}) + for line in auxv.split(b'\n'): + if line.startswith(b'AT_PLATFORM'): + parts = line.split(b':', 1) + if len(parts) == 2: + return parts[1].strip().decode().lower() + except Exception: + pass + return None + + +is_zarch = re.match(r"^(s390x)", machine, re.IGNORECASE) +@pytest.mark.skipif(not is_linux or not is_zarch, + reason="Only for Linux and IBM Z") +class Test_ZARCH_Features(AbstractTest): + features = ["VX", "VXE", "VXE2"] + + def load_flags(self): + self.load_flags_auxv() + + +is_arm = re.match(r"^(arm|aarch64)", machine, re.IGNORECASE) +@pytest.mark.skipif(not is_linux or not is_arm, reason="Only for Linux and ARM") +class Test_ARM_Features(AbstractTest): + features = [ + "SVE", "NEON", "ASIMD", "FPHP", "ASIMDHP", "ASIMDDP", "ASIMDFHM" + ] + features_groups = { + "NEON_FP16": ["NEON", "HALF"], + "NEON_VFPV4": ["NEON", "VFPV4"], + } + + def load_flags(self): + self.load_flags_cpuinfo("Features") + arch = self.get_cpuinfo_item("CPU architecture") + # in case of mounting virtual filesystem of aarch64 kernel without linux32 + is_rootfs_v8 = ( + not re.match(r"^armv[0-9]+l$", machine) and + (int('0' + next(iter(arch))) > 7 if arch else 0) + ) + if re.match(r"^(aarch64|AARCH64)", machine) or is_rootfs_v8: + self.features_map = { + "NEON": "ASIMD", "HALF": "ASIMD", "VFPV4": "ASIMD" + } + else: + self.features_map = { + # ELF auxiliary vector and /proc/cpuinfo on Linux kernel(armv8 aarch32) + # doesn't provide information about ASIMD, so we assume that ASIMD is supported + # if the kernel reports any one of the following ARM8 features. + "ASIMD": ("AES", "SHA1", "SHA2", "PMULL", "CRC32") + } + + +is_loongarch = re.match(r"^(loongarch)", machine, re.IGNORECASE) +@pytest.mark.skipif(not is_linux or not is_loongarch, reason="Only for Linux and LoongArch") +class Test_LOONGARCH_Features(AbstractTest): + features = ["LSX"] + + def load_flags(self): + self.load_flags_cpuinfo("Features") + + +is_riscv = re.match(r"^(riscv)", machine, re.IGNORECASE) +@pytest.mark.skipif(not is_linux or not is_riscv, reason="Only for Linux and RISC-V") +class Test_RISCV_Features(AbstractTest): + features = ["RVV"] + + def load_flags(self): + self.load_flags_auxv() + if not self.features_flags: + # Let the test fail and dump if we cannot read HWCAP. + return + hwcap = int(next(iter(self.features_flags)), 16) + if hwcap & (1 << 21): # HWCAP_RISCV_V + self.features_flags.add("RVV") diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_custom_dtypes.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_custom_dtypes.py new file mode 100644 index 0000000000000000000000000000000000000000..2acb4adf4c7c02794910b21f6f00322f55c6d08f --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_custom_dtypes.py @@ -0,0 +1,393 @@ +from tempfile import NamedTemporaryFile + +import pytest + +import numpy as np +from numpy._core._multiarray_umath import ( + _discover_array_parameters as discover_array_params, + _get_sfloat_dtype, +) +from numpy.testing import assert_array_equal + +SF = _get_sfloat_dtype() + + +class TestSFloat: + def _get_array(self, scaling, aligned=True): + if not aligned: + a = np.empty(3 * 8 + 1, dtype=np.uint8)[1:] + a = a.view(np.float64) + a[:] = [1., 2., 3.] + else: + a = np.array([1., 2., 3.]) + + a *= 1. / scaling # the casting code also uses the reciprocal. + return a.view(SF(scaling)) + + def test_sfloat_rescaled(self): + sf = SF(1.) + sf2 = sf.scaled_by(2.) + assert sf2.get_scaling() == 2. + sf6 = sf2.scaled_by(3.) + assert sf6.get_scaling() == 6. + + def test_class_discovery(self): + # This does not test much, since we always discover the scaling as 1. + # But most of NumPy (when writing) does not understand DType classes + dt, _ = discover_array_params([1., 2., 3.], dtype=SF) + assert dt == SF(1.) + + @pytest.mark.parametrize("scaling", [1., -1., 2.]) + def test_scaled_float_from_floats(self, scaling): + a = np.array([1., 2., 3.], dtype=SF(scaling)) + + assert a.dtype.get_scaling() == scaling + assert_array_equal(scaling * a.view(np.float64), [1., 2., 3.]) + + def test_repr(self): + # Check the repr, mainly to cover the code paths: + assert repr(SF(scaling=1.)) == "_ScaledFloatTestDType(scaling=1.0)" + + def test_dtype_str(self): + assert SF(1.).str == "_ScaledFloatTestDType(scaling=1.0)" + + def test_dtype_name(self): + assert SF(1.).name == "_ScaledFloatTestDType64" + + def test_sfloat_structured_dtype_printing(self): + dt = np.dtype([("id", int), ("value", SF(0.5))]) + # repr of structured dtypes need special handling because the + # implementation bypasses the object repr + assert "('value', '_ScaledFloatTestDType64')" in repr(dt) + + @pytest.mark.parametrize("scaling", [1., -1., 2.]) + def test_sfloat_from_float(self, scaling): + a = np.array([1., 2., 3.]).astype(dtype=SF(scaling)) + + assert a.dtype.get_scaling() == scaling + assert_array_equal(scaling * a.view(np.float64), [1., 2., 3.]) + + @pytest.mark.parametrize("aligned", [True, False]) + @pytest.mark.parametrize("scaling", [1., -1., 2.]) + def test_sfloat_getitem(self, aligned, scaling): + a = self._get_array(1., aligned) + assert a.tolist() == [1., 2., 3.] + + @pytest.mark.parametrize("aligned", [True, False]) + def test_sfloat_casts(self, aligned): + a = self._get_array(1., aligned) + + assert np.can_cast(a, SF(-1.), casting="equiv") + assert not np.can_cast(a, SF(-1.), casting="no") + na = a.astype(SF(-1.)) + assert_array_equal(-1 * na.view(np.float64), a.view(np.float64)) + + assert np.can_cast(a, SF(2.), casting="same_kind") + assert not np.can_cast(a, SF(2.), casting="safe") + a2 = a.astype(SF(2.)) + assert_array_equal(2 * a2.view(np.float64), a.view(np.float64)) + + @pytest.mark.parametrize("aligned", [True, False]) + def test_sfloat_cast_internal_errors(self, aligned): + a = self._get_array(2e300, aligned) + + with pytest.raises(TypeError, + match="error raised inside the core-loop: non-finite factor!"): + a.astype(SF(2e-300)) + + def test_sfloat_promotion(self): + assert np.result_type(SF(2.), SF(3.)) == SF(3.) + assert np.result_type(SF(3.), SF(2.)) == SF(3.) + # Float64 -> SF(1.) and then promotes normally, so both of this work: + assert np.result_type(SF(3.), np.float64) == SF(3.) + assert np.result_type(np.float64, SF(0.5)) == SF(1.) + + # Test an undefined promotion: + with pytest.raises(TypeError): + np.result_type(SF(1.), np.int64) + + def test_basic_multiply(self): + a = self._get_array(2.) + b = self._get_array(4.) + + res = a * b + # multiplies dtype scaling and content separately: + assert res.dtype.get_scaling() == 8. + expected_view = a.view(np.float64) * b.view(np.float64) + assert_array_equal(res.view(np.float64), expected_view) + + def test_possible_and_impossible_reduce(self): + # For reductions to work, the first and last operand must have the + # same dtype. For this parametric DType that is not necessarily true. + a = self._get_array(2.) + # Addition reduction works (as of writing requires to pass initial + # because setting a scaled-float from the default `0` fails). + res = np.add.reduce(a, initial=0.) + assert res == a.astype(np.float64).sum() + + # But each multiplication changes the factor, so a reduction is not + # possible (the relaxed version of the old refusal to handle any + # flexible dtype). + with pytest.raises(TypeError, + match="the resolved dtypes are not compatible"): + np.multiply.reduce(a) + + def test_basic_ufunc_at(self): + float_a = np.array([1., 2., 3.]) + b = self._get_array(2.) + + float_b = b.view(np.float64).copy() + np.multiply.at(float_b, [1, 1, 1], float_a) + np.multiply.at(b, [1, 1, 1], float_a) + + assert_array_equal(b.view(np.float64), float_b) + + def test_basic_multiply_promotion(self): + float_a = np.array([1., 2., 3.]) + b = self._get_array(2.) + + res1 = float_a * b + res2 = b * float_a + + # one factor is one, so we get the factor of b: + assert res1.dtype == res2.dtype == b.dtype + expected_view = float_a * b.view(np.float64) + assert_array_equal(res1.view(np.float64), expected_view) + assert_array_equal(res2.view(np.float64), expected_view) + + # Check that promotion works when `out` is used: + np.multiply(b, float_a, out=res2) + with pytest.raises(TypeError): + # The promoter accepts this (maybe it should not), but the SFloat + # result cannot be cast to integer: + np.multiply(b, float_a, out=np.arange(3)) + + def test_basic_addition(self): + a = self._get_array(2.) + b = self._get_array(4.) + + res = a + b + # addition uses the type promotion rules for the result: + assert res.dtype == np.result_type(a.dtype, b.dtype) + expected_view = (a.astype(res.dtype).view(np.float64) + + b.astype(res.dtype).view(np.float64)) + assert_array_equal(res.view(np.float64), expected_view) + + def test_addition_cast_safety(self): + """The addition method is special for the scaled float, because it + includes the "cast" between different factors, thus cast-safety + is influenced by the implementation. + """ + a = self._get_array(2.) + b = self._get_array(-2.) + c = self._get_array(3.) + + # sign change is "equiv": + np.add(a, b, casting="equiv") + with pytest.raises(TypeError): + np.add(a, b, casting="no") + + # Different factor is "same_kind" (default) so check that "safe" fails + with pytest.raises(TypeError): + np.add(a, c, casting="safe") + + # Check that casting the output fails also (done by the ufunc here) + with pytest.raises(TypeError): + np.add(a, a, out=c, casting="safe") + + @pytest.mark.parametrize("ufunc", + [np.logical_and, np.logical_or, np.logical_xor]) + def test_logical_ufuncs_casts_to_bool(self, ufunc): + a = self._get_array(2.) + a[0] = 0. # make sure first element is considered False. + + float_equiv = a.astype(float) + expected = ufunc(float_equiv, float_equiv) + res = ufunc(a, a) + assert_array_equal(res, expected) + + # also check that the same works for reductions: + expected = ufunc.reduce(float_equiv) + res = ufunc.reduce(a) + assert_array_equal(res, expected) + + # The output casting does not match the bool, bool -> bool loop: + with pytest.raises(TypeError): + ufunc(a, a, out=np.empty(a.shape, dtype=int), casting="equiv") + + def test_wrapped_and_wrapped_reductions(self): + a = self._get_array(2.) + float_equiv = a.astype(float) + + expected = np.hypot(float_equiv, float_equiv) + res = np.hypot(a, a) + assert res.dtype == a.dtype + res_float = res.view(np.float64) * 2 + assert_array_equal(res_float, expected) + + # Also check reduction (keepdims, due to incorrect getitem) + res = np.hypot.reduce(a, keepdims=True) + assert res.dtype == a.dtype + expected = np.hypot.reduce(float_equiv, keepdims=True) + assert res.view(np.float64) * 2 == expected + + def test_sort(self): + a = self._get_array(1.) + a = a[::-1] # reverse it + + a.sort() + assert_array_equal(a.view(np.float64), [1., 2., 3.]) + + a = self._get_array(1.) + a = a[::-1] # reverse it + + sorted_a = np.sort(a) + assert_array_equal(sorted_a.view(np.float64), [1., 2., 3.]) + # original is unchanged + assert_array_equal(a.view(np.float64), [3., 2., 1.]) + + a = self._get_array(0.5) # different factor + a = a[::2][::-1] # non-contiguous + sorted_a = np.sort(a) + assert_array_equal(sorted_a.view(np.float64), [2., 6.]) + # original is unchanged + assert_array_equal(a.view(np.float64), [6., 2.]) + + a = self._get_array(0.5, aligned=False) + a = a[::-1] # reverse it + sorted_a = np.sort(a) + assert_array_equal(sorted_a.view(np.float64), [2., 4., 6.]) + # original is unchanged + assert_array_equal(a.view(np.float64), [6., 4., 2.]) + + sorted_a = np.sort(a, stable=True) + assert_array_equal(sorted_a.view(np.float64), [2., 4., 6.]) + # original is unchanged + assert_array_equal(a.view(np.float64), [6., 4., 2.]) + + sorted_a = np.sort(a, stable=False) + assert_array_equal(sorted_a.view(np.float64), [2., 4., 6.]) + # original is unchanged + assert_array_equal(a.view(np.float64), [6., 4., 2.]) + + def test_argsort(self): + a = self._get_array(1.) + a = a[::-1] # reverse it + + indices = np.argsort(a) + assert_array_equal(indices, [2, 1, 0]) + # original is unchanged + assert_array_equal(a.view(np.float64), [3., 2., 1.]) + + a = self._get_array(0.5) + a = a[::2][::-1] # reverse it + indices = np.argsort(a) + assert_array_equal(indices, [1, 0]) + # original is unchanged + assert_array_equal(a.view(np.float64), [6., 2.]) + + a = self._get_array(0.5, aligned=False) + a = a[::-1] # reverse it + indices = np.argsort(a) + assert_array_equal(indices, [2, 1, 0]) + # original is unchanged + assert_array_equal(a.view(np.float64), [6., 4., 2.]) + + sorted_indices = np.argsort(a, stable=True) + assert_array_equal(sorted_indices, [2, 1, 0]) + # original is unchanged + assert_array_equal(a.view(np.float64), [6., 4., 2.]) + + sorted_indices = np.argsort(a, stable=False) + assert_array_equal(sorted_indices, [2, 1, 0]) + # original is unchanged + assert_array_equal(a.view(np.float64), [6., 4., 2.]) + + def test_astype_class(self): + # Very simple test that we accept `.astype()` also on the class. + # ScaledFloat always returns the default descriptor, but it does + # check the relevant code paths. + arr = np.array([1., 2., 3.], dtype=object) + + res = arr.astype(SF) # passing the class class + expected = arr.astype(SF(1.)) # above will have discovered 1. scaling + assert_array_equal(res.view(np.float64), expected.view(np.float64)) + + def test_creation_class(self): + # passing in a dtype class should return + # the default descriptor + arr1 = np.array([1., 2., 3.], dtype=SF) + assert arr1.dtype == SF(1.) + arr2 = np.array([1., 2., 3.], dtype=SF(1.)) + assert_array_equal(arr1.view(np.float64), arr2.view(np.float64)) + assert arr1.dtype == arr2.dtype + + assert np.empty(3, dtype=SF).dtype == SF(1.) + assert np.empty_like(arr1, dtype=SF).dtype == SF(1.) + assert np.zeros(3, dtype=SF).dtype == SF(1.) + assert np.zeros_like(arr1, dtype=SF).dtype == SF(1.) + + @pytest.mark.thread_unsafe( + reason="_ScaledFloatTestDType setup is thread-unsafe (gh-29850)" + ) + def test_np_save_load(self): + # this monkeypatch is needed because pickle + # uses the repr of a type to reconstruct it + np._ScaledFloatTestDType = SF + + arr = np.array([1.0, 2.0, 3.0], dtype=SF(1.0)) + + # adapted from RoundtripTest.roundtrip in np.save tests + with NamedTemporaryFile("wb", delete=False, suffix=".npz") as f: + with pytest.warns(UserWarning) as record: + np.savez(f.name, arr) + + assert len(record) == 1 + + with np.load(f.name, allow_pickle=True) as data: + larr = data["arr_0"] + assert_array_equal(arr.view(np.float64), larr.view(np.float64)) + assert larr.dtype == arr.dtype == SF(1.0) + + del np._ScaledFloatTestDType + + def test_flatiter(self): + arr = np.array([1.0, 2.0, 3.0], dtype=SF(1.0)) + + for i, val in enumerate(arr.flat): + assert arr[i] == val + + @pytest.mark.parametrize( + "index", [ + [1, 2], ..., slice(None, 2, None), + np.array([True, True, False]), np.array([0, 1]) + ], ids=["int_list", "ellipsis", "slice", "bool_array", "int_array"]) + def test_flatiter_index(self, index): + arr = np.array([1.0, 2.0, 3.0], dtype=SF(1.0)) + np.testing.assert_array_equal( + arr[index].view(np.float64), arr.flat[index].view(np.float64)) + + arr2 = arr.copy() + arr[index] = 5.0 + arr2.flat[index] = 5.0 + np.testing.assert_array_equal( + arr.view(np.float64), arr2.view(np.float64)) + +@pytest.mark.thread_unsafe( + reason="_ScaledFloatTestDType setup is thread-unsafe (gh-29850)" +) +def test_type_pickle(): + # can't actually unpickle, but we can pickle (if in namespace) + import pickle + + np._ScaledFloatTestDType = SF + + s = pickle.dumps(SF) + res = pickle.loads(s) + assert res is SF + + del np._ScaledFloatTestDType + + +def test_is_numeric(): + assert SF._is_numeric diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_cython.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_cython.py new file mode 100644 index 0000000000000000000000000000000000000000..7e2680578b3ef9ff9bcaa58cfe5b13c57565fb8c --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_cython.py @@ -0,0 +1,367 @@ +import os +import subprocess +import sys +import sysconfig +from datetime import datetime + +import pytest + +import numpy as np +from numpy.testing import IS_EDITABLE, IS_WASM, assert_array_equal + +# This import is copied from random.tests.test_extending +try: + import cython + from Cython.Compiler.Version import version as cython_version +except ImportError: + cython = None +else: + from numpy._utils import _pep440 + + # Note: keep in sync with the one in pyproject.toml + required_version = "3.0.6" + if _pep440.parse(cython_version) < _pep440.Version(required_version): + # too old or wrong cython, skip the test + cython = None + +pytestmark = pytest.mark.skipif(cython is None, reason="requires cython") + + +if IS_EDITABLE: + pytest.skip( + "Editable install doesn't support tests with a compile step", + allow_module_level=True + ) + + +@pytest.fixture(scope='module') +def install_temp(tmpdir_factory): + # Based in part on test_cython from random.tests.test_extending + if IS_WASM: + pytest.skip("No subprocess") + + srcdir = os.path.join(os.path.dirname(__file__), 'examples', 'cython') + build_dir = tmpdir_factory.mktemp("cython_test") / "build" + os.makedirs(build_dir, exist_ok=True) + # Ensure we use the correct Python interpreter even when `meson` is + # installed in a different Python environment (see gh-24956) + native_file = str(build_dir / 'interpreter-native-file.ini') + with open(native_file, 'w') as f: + f.write("[binaries]\n") + f.write(f"python = '{sys.executable}'\n") + f.write(f"python3 = '{sys.executable}'") + + try: + subprocess.check_call(["meson", "--version"]) + except FileNotFoundError: + pytest.skip("No usable 'meson' found") + if sysconfig.get_platform() == "win-arm64": + pytest.skip("Meson unable to find MSVC linker on win-arm64") + if sys.platform == "win32": + subprocess.check_call(["meson", "setup", + "--buildtype=release", + "--vsenv", "--native-file", native_file, + str(srcdir)], + cwd=build_dir, + ) + else: + subprocess.check_call(["meson", "setup", + "--native-file", native_file, str(srcdir)], + cwd=build_dir + ) + try: + subprocess.check_call(["meson", "compile", "-vv"], cwd=build_dir) + except subprocess.CalledProcessError: + print("----------------") + print("meson build failed when doing") + print(f"'meson setup --native-file {native_file} {srcdir}'") + print("'meson compile -vv'") + print(f"in {build_dir}") + print("----------------") + raise + + sys.path.append(str(build_dir)) + + +def test_is_timedelta64_object(install_temp): + import checks + + assert checks.is_td64(np.timedelta64(1234)) + assert checks.is_td64(np.timedelta64(1234, "ns")) + assert checks.is_td64(np.timedelta64("NaT", "ns")) + + assert not checks.is_td64(1) + assert not checks.is_td64(None) + assert not checks.is_td64("foo") + assert not checks.is_td64(np.datetime64("now", "s")) + + +def test_is_datetime64_object(install_temp): + import checks + + assert checks.is_dt64(np.datetime64(1234, "ns")) + assert checks.is_dt64(np.datetime64("NaT", "ns")) + + assert not checks.is_dt64(1) + assert not checks.is_dt64(None) + assert not checks.is_dt64("foo") + assert not checks.is_dt64(np.timedelta64(1234)) + + +def test_get_datetime64_value(install_temp): + import checks + + dt64 = np.datetime64("2016-01-01", "ns") + + result = checks.get_dt64_value(dt64) + expected = dt64.view("i8") + + assert result == expected + + +def test_get_timedelta64_value(install_temp): + import checks + + td64 = np.timedelta64(12345, "h") + + result = checks.get_td64_value(td64) + expected = td64.view("i8") + + assert result == expected + + +def test_get_datetime64_unit(install_temp): + import checks + + dt64 = np.datetime64("2016-01-01", "ns") + result = checks.get_dt64_unit(dt64) + expected = 10 + assert result == expected + + td64 = np.timedelta64(12345, "h") + result = checks.get_dt64_unit(td64) + expected = 5 + assert result == expected + + +def test_abstract_scalars(install_temp): + import checks + + assert checks.is_integer(1) + assert checks.is_integer(np.int8(1)) + assert checks.is_integer(np.uint64(1)) + +def test_default_int(install_temp): + import checks + + assert checks.get_default_integer() is np.dtype(int) + + +def test_ravel_axis(install_temp): + import checks + + assert checks.get_ravel_axis() == np.iinfo("intc").min + + +def test_convert_datetime64_to_datetimestruct(install_temp): + # GH#21199 + import checks + + res = checks.convert_datetime64_to_datetimestruct() + + exp = { + "year": 2022, + "month": 3, + "day": 15, + "hour": 20, + "min": 1, + "sec": 55, + "us": 260292, + "ps": 0, + "as": 0, + } + + assert res == exp + + +class TestDatetimeStrings: + def test_make_iso_8601_datetime(self, install_temp): + # GH#21199 + import checks + dt = datetime(2016, 6, 2, 10, 45, 19) + # uses NPY_FR_s + result = checks.make_iso_8601_datetime(dt) + assert result == b"2016-06-02T10:45:19" + + def test_get_datetime_iso_8601_strlen(self, install_temp): + # GH#21199 + import checks + # uses NPY_FR_ns + res = checks.get_datetime_iso_8601_strlen() + assert res == 48 + + +@pytest.mark.parametrize( + "arrays", + [ + [np.random.rand(2)], + [np.random.rand(2), np.random.rand(3, 1)], + [np.random.rand(2), np.random.rand(2, 3, 2), np.random.rand(1, 3, 2)], + [np.random.rand(2, 1)] * 4 + [np.random.rand(1, 1, 1)], + ] +) +def test_multiiter_fields(install_temp, arrays): + import checks + bcast = np.broadcast(*arrays) + + assert bcast.ndim == checks.get_multiiter_number_of_dims(bcast) + assert bcast.size == checks.get_multiiter_size(bcast) + assert bcast.numiter == checks.get_multiiter_num_of_iterators(bcast) + assert bcast.shape == checks.get_multiiter_shape(bcast) + assert bcast.index == checks.get_multiiter_current_index(bcast) + assert all( + x.base is y.base + for x, y in zip(bcast.iters, checks.get_multiiter_iters(bcast)) + ) + + +def test_dtype_flags(install_temp): + import checks + dtype = np.dtype("i,O") # dtype with somewhat interesting flags + assert dtype.flags == checks.get_dtype_flags(dtype) + + +def test_conv_intp(install_temp): + import checks + + class myint: + def __int__(self): + return 3 + + # These conversion passes via `__int__`, not `__index__`: + assert checks.conv_intp(3.) == 3 + assert checks.conv_intp(myint()) == 3 + + +def test_npyiter_api(install_temp): + import checks + arr = np.random.rand(3, 2) + + it = np.nditer(arr) + assert checks.get_npyiter_size(it) == it.itersize == np.prod(arr.shape) + assert checks.get_npyiter_ndim(it) == it.ndim == 1 + assert checks.npyiter_has_index(it) == it.has_index == False + + it = np.nditer(arr, flags=["c_index"]) + assert checks.npyiter_has_index(it) == it.has_index == True + assert ( + checks.npyiter_has_delayed_bufalloc(it) + == it.has_delayed_bufalloc + == False + ) + + it = np.nditer(arr, flags=["buffered", "delay_bufalloc"]) + assert ( + checks.npyiter_has_delayed_bufalloc(it) + == it.has_delayed_bufalloc + == True + ) + + it = np.nditer(arr, flags=["multi_index"]) + assert checks.get_npyiter_size(it) == it.itersize == np.prod(arr.shape) + assert checks.npyiter_has_multi_index(it) == it.has_multi_index == True + assert checks.get_npyiter_ndim(it) == it.ndim == 2 + assert checks.test_get_multi_index_iter_next(it, arr) + + arr2 = np.random.rand(2, 1, 2) + it = np.nditer([arr, arr2]) + assert checks.get_npyiter_nop(it) == it.nop == 2 + assert checks.get_npyiter_size(it) == it.itersize == 12 + assert checks.get_npyiter_ndim(it) == it.ndim == 3 + assert all( + x is y for x, y in zip(checks.get_npyiter_operands(it), it.operands) + ) + assert all( + np.allclose(x, y) + for x, y in zip(checks.get_npyiter_itviews(it), it.itviews) + ) + + +def test_fillwithbytes(install_temp): + import checks + + arr = checks.compile_fillwithbyte() + assert_array_equal(arr, np.ones((1, 2))) + + +def test_complex(install_temp): + from checks import inc2_cfloat_struct + + arr = np.array([0, 10 + 10j], dtype="F") + inc2_cfloat_struct(arr) + assert arr[1] == (12 + 12j) + + +def test_npystring_pack(install_temp): + """Check that the cython API can write to a vstring array.""" + import checks + + arr = np.array(['a', 'b', 'c'], dtype='T') + assert checks.npystring_pack(arr) == 0 + + # checks.npystring_pack writes to the beginning of the array + assert arr[0] == "Hello world" + +def test_npystring_load(install_temp): + """Check that the cython API can load strings from a vstring array.""" + import checks + + arr = np.array(['abcd', 'b', 'c'], dtype='T') + result = checks.npystring_load(arr) + assert result == 'abcd' + + +def test_npystring_multiple_allocators(install_temp): + """Check that the cython API can acquire/release multiple vstring allocators.""" + import checks + + dt = np.dtypes.StringDType(na_object=None) + arr1 = np.array(['abcd', 'b', 'c'], dtype=dt) + arr2 = np.array(['a', 'b', 'c'], dtype=dt) + + assert checks.npystring_pack_multiple(arr1, arr2) == 0 + assert arr1[0] == "Hello world" + assert arr1[-1] is None + assert arr2[0] == "test this" + + +def test_npystring_allocators_other_dtype(install_temp): + """Check that allocators for non-StringDType arrays is NULL.""" + import checks + + arr1 = np.array([1, 2, 3], dtype='i') + arr2 = np.array([4, 5, 6], dtype='i') + + assert checks.npystring_allocators_other_types(arr1, arr2) == 0 + + +@pytest.mark.skipif(sysconfig.get_platform() == 'win-arm64', + reason='no checks module on win-arm64') +def test_npy_uintp_type_enum(install_temp): + import checks + assert checks.check_npy_uintp_type_enum() + + +@pytest.mark.skipif( + sys.version_info < (3, 14), + reason="Tests behavior that happens on Python 3.14 and newer" +) +@pytest.mark.skipif( + sysconfig.get_platform() == 'win-arm64', + reason='no checks module on win-arm64' +) +def test_resize_refcheck(install_temp): + import checks + msg = "It is possible that this is a false positive." + with pytest.raises(ValueError, match=msg): + checks.resize_refcheck_test() diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_datetime.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_datetime.py new file mode 100644 index 0000000000000000000000000000000000000000..029110c4d52d83e83b3238349c06b5b445fe9991 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_datetime.py @@ -0,0 +1,2797 @@ +import datetime +import pickle +import warnings +from zoneinfo import ZoneInfo, ZoneInfoNotFoundError + +import pytest + +import numpy +import numpy as np +from numpy.testing import ( + IS_WASM, + assert_, + assert_array_equal, + assert_equal, + assert_raises, + assert_raises_regex, +) + +try: + RecursionError +except NameError: + RecursionError = RuntimeError # python < 3.5 + +try: + ZoneInfo("US/Central") + _has_tz = True +except ZoneInfoNotFoundError: + _has_tz = False + +def _assert_equal_hash(v1, v2): + assert v1 == v2 + assert hash(v1) == hash(v2) + assert v2 in {v1} + + +class TestDateTime: + + def test_string(self): + msg = "no explicit representation of timezones available for " \ + "np.datetime64" + with pytest.warns(UserWarning, match=msg): + np.datetime64('2000-01-01T00+01') + + def test_datetime(self): + msg = "no explicit representation of timezones available for " \ + "np.datetime64" + with pytest.warns(UserWarning, match=msg): + t0 = np.datetime64('2023-06-09T12:18:40Z', 'ns') + + t0 = np.datetime64('2023-06-09T12:18:40', 'ns') + + def test_datetime_dtype_creation(self): + for unit in ['Y', 'M', 'W', 'D', + 'h', 'm', 's', 'ms', 'us', + 'μs', # alias for us + 'ns', 'ps', 'fs', 'as']: + dt1 = np.dtype(f'M8[750{unit}]') + assert_(dt1 == np.dtype(f'datetime64[750{unit}]')) + dt2 = np.dtype(f'm8[{unit}]') + assert_(dt2 == np.dtype(f'timedelta64[{unit}]')) + + # Generic units shouldn't add [] to the end + assert_equal(str(np.dtype("M8")), "datetime64") + + # Should be possible to specify the endianness + assert_equal(np.dtype("=M8"), np.dtype("M8")) + assert_equal(np.dtype("=M8[s]"), np.dtype("M8[s]")) + assert_(np.dtype(">M8") == np.dtype("M8") or + np.dtype("M8[D]") == np.dtype("M8[D]") or + np.dtype("M8") != np.dtype("m8") == np.dtype("m8") or + np.dtype("m8[D]") == np.dtype("m8[D]") or + np.dtype("m8") != np.dtype(" Scalars + assert_equal(np.datetime64(b, '[s]'), np.datetime64('NaT', '[s]')) + assert_equal(np.datetime64(b, '[ms]'), np.datetime64('NaT', '[ms]')) + assert_equal(np.datetime64(b, '[M]'), np.datetime64('NaT', '[M]')) + assert_equal(np.datetime64(b, '[Y]'), np.datetime64('NaT', '[Y]')) + assert_equal(np.datetime64(b, '[W]'), np.datetime64('NaT', '[W]')) + + # Arrays -> Scalars + assert_equal(np.datetime64(a, '[s]'), np.datetime64('NaT', '[s]')) + assert_equal(np.datetime64(a, '[ms]'), np.datetime64('NaT', '[ms]')) + assert_equal(np.datetime64(a, '[M]'), np.datetime64('NaT', '[M]')) + assert_equal(np.datetime64(a, '[Y]'), np.datetime64('NaT', '[Y]')) + assert_equal(np.datetime64(a, '[W]'), np.datetime64('NaT', '[W]')) + + # NaN -> NaT + nan = np.array([np.nan] * 8 + [0]) + fnan = nan.astype('f') + lnan = nan.astype('g') + cnan = nan.astype('D') + cfnan = nan.astype('F') + clnan = nan.astype('G') + hnan = nan.astype(np.half) + + nat = np.array([np.datetime64('NaT')] * 8 + [np.datetime64(0, 'D')]) + assert_equal(nan.astype('M8[ns]'), nat) + assert_equal(fnan.astype('M8[ns]'), nat) + assert_equal(lnan.astype('M8[ns]'), nat) + assert_equal(cnan.astype('M8[ns]'), nat) + assert_equal(cfnan.astype('M8[ns]'), nat) + assert_equal(clnan.astype('M8[ns]'), nat) + assert_equal(hnan.astype('M8[ns]'), nat) + + nat = np.array([np.timedelta64('NaT')] * 8 + [np.timedelta64(0)]) + assert_equal(nan.astype('timedelta64[ns]'), nat) + assert_equal(fnan.astype('timedelta64[ns]'), nat) + assert_equal(lnan.astype('timedelta64[ns]'), nat) + assert_equal(cnan.astype('timedelta64[ns]'), nat) + assert_equal(cfnan.astype('timedelta64[ns]'), nat) + assert_equal(clnan.astype('timedelta64[ns]'), nat) + assert_equal(hnan.astype('timedelta64[ns]'), nat) + + def test_days_creation(self): + assert_equal(np.array('1599', dtype='M8[D]').astype('i8'), + (1600 - 1970) * 365 - (1972 - 1600) / 4 + 3 - 365) + assert_equal(np.array('1600', dtype='M8[D]').astype('i8'), + (1600 - 1970) * 365 - (1972 - 1600) / 4 + 3) + assert_equal(np.array('1601', dtype='M8[D]').astype('i8'), + (1600 - 1970) * 365 - (1972 - 1600) / 4 + 3 + 366) + assert_equal(np.array('1900', dtype='M8[D]').astype('i8'), + (1900 - 1970) * 365 - (1970 - 1900) // 4) + assert_equal(np.array('1901', dtype='M8[D]').astype('i8'), + (1900 - 1970) * 365 - (1970 - 1900) // 4 + 365) + assert_equal(np.array('1967', dtype='M8[D]').astype('i8'), -3 * 365 - 1) + assert_equal(np.array('1968', dtype='M8[D]').astype('i8'), -2 * 365 - 1) + assert_equal(np.array('1969', dtype='M8[D]').astype('i8'), -1 * 365) + assert_equal(np.array('1970', dtype='M8[D]').astype('i8'), 0 * 365) + assert_equal(np.array('1971', dtype='M8[D]').astype('i8'), 1 * 365) + assert_equal(np.array('1972', dtype='M8[D]').astype('i8'), 2 * 365) + assert_equal(np.array('1973', dtype='M8[D]').astype('i8'), 3 * 365 + 1) + assert_equal(np.array('1974', dtype='M8[D]').astype('i8'), 4 * 365 + 1) + assert_equal(np.array('2000', dtype='M8[D]').astype('i8'), + (2000 - 1970) * 365 + (2000 - 1972) // 4) + assert_equal(np.array('2001', dtype='M8[D]').astype('i8'), + (2000 - 1970) * 365 + (2000 - 1972) // 4 + 366) + assert_equal(np.array('2400', dtype='M8[D]').astype('i8'), + (2400 - 1970) * 365 + (2400 - 1972) // 4 - 3) + assert_equal(np.array('2401', dtype='M8[D]').astype('i8'), + (2400 - 1970) * 365 + (2400 - 1972) // 4 - 3 + 366) + + assert_equal(np.array('1600-02-29', dtype='M8[D]').astype('i8'), + (1600 - 1970) * 365 - (1972 - 1600) // 4 + 3 + 31 + 28) + assert_equal(np.array('1600-03-01', dtype='M8[D]').astype('i8'), + (1600 - 1970) * 365 - (1972 - 1600) // 4 + 3 + 31 + 29) + assert_equal(np.array('2000-02-29', dtype='M8[D]').astype('i8'), + (2000 - 1970) * 365 + (2000 - 1972) // 4 + 31 + 28) + assert_equal(np.array('2000-03-01', dtype='M8[D]').astype('i8'), + (2000 - 1970) * 365 + (2000 - 1972) // 4 + 31 + 29) + assert_equal(np.array('2001-03-22', dtype='M8[D]').astype('i8'), + (2000 - 1970) * 365 + (2000 - 1972) // 4 + 366 + 31 + 28 + 21) + + def test_days_to_pydate(self): + assert_equal(np.array('1599', dtype='M8[D]').astype('O'), + datetime.date(1599, 1, 1)) + assert_equal(np.array('1600', dtype='M8[D]').astype('O'), + datetime.date(1600, 1, 1)) + assert_equal(np.array('1601', dtype='M8[D]').astype('O'), + datetime.date(1601, 1, 1)) + assert_equal(np.array('1900', dtype='M8[D]').astype('O'), + datetime.date(1900, 1, 1)) + assert_equal(np.array('1901', dtype='M8[D]').astype('O'), + datetime.date(1901, 1, 1)) + assert_equal(np.array('2000', dtype='M8[D]').astype('O'), + datetime.date(2000, 1, 1)) + assert_equal(np.array('2001', dtype='M8[D]').astype('O'), + datetime.date(2001, 1, 1)) + assert_equal(np.array('1600-02-29', dtype='M8[D]').astype('O'), + datetime.date(1600, 2, 29)) + assert_equal(np.array('1600-03-01', dtype='M8[D]').astype('O'), + datetime.date(1600, 3, 1)) + assert_equal(np.array('2001-03-22', dtype='M8[D]').astype('O'), + datetime.date(2001, 3, 22)) + + def test_dtype_comparison(self): + assert_(not (np.dtype('M8[us]') == np.dtype('M8[ms]'))) + assert_(np.dtype('M8[us]') != np.dtype('M8[ms]')) + assert_(np.dtype('M8[2D]') != np.dtype('M8[D]')) + assert_(np.dtype('M8[D]') != np.dtype('M8[2D]')) + + def test_pydatetime_creation(self): + a = np.array(['1960-03-12', datetime.date(1960, 3, 12)], dtype='M8[D]') + assert_equal(a[0], a[1]) + a = np.array(['1999-12-31', datetime.date(1999, 12, 31)], dtype='M8[D]') + assert_equal(a[0], a[1]) + a = np.array(['2000-01-01', datetime.date(2000, 1, 1)], dtype='M8[D]') + assert_equal(a[0], a[1]) + # Will fail if the date changes during the exact right moment + a = np.array(['today', datetime.date.today()], dtype='M8[D]') + assert_equal(a[0], a[1]) + # datetime.datetime.now() returns local time, not UTC + #a = np.array(['now', datetime.datetime.now()], dtype='M8[s]') + #assert_equal(a[0], a[1]) + + # we can give a datetime.date time units + assert_equal(np.array(datetime.date(1960, 3, 12), dtype='M8[s]'), + np.array(np.datetime64('1960-03-12T00:00:00'))) + + def test_datetime_string_conversion(self): + a = ['2011-03-16', '1920-01-01', '2013-05-19'] + str_a = np.array(a, dtype='S') + uni_a = np.array(a, dtype='U') + dt_a = np.array(a, dtype='M') + + # String to datetime + assert_equal(dt_a, str_a.astype('M')) + assert_equal(dt_a.dtype, str_a.astype('M').dtype) + dt_b = np.empty_like(dt_a) + dt_b[...] = str_a + assert_equal(dt_a, dt_b) + + # Datetime to string + assert_equal(str_a, dt_a.astype('S0')) + str_b = np.empty_like(str_a) + str_b[...] = dt_a + assert_equal(str_a, str_b) + + # Unicode to datetime + assert_equal(dt_a, uni_a.astype('M')) + assert_equal(dt_a.dtype, uni_a.astype('M').dtype) + dt_b = np.empty_like(dt_a) + dt_b[...] = uni_a + assert_equal(dt_a, dt_b) + + # Datetime to unicode + assert_equal(uni_a, dt_a.astype('U')) + uni_b = np.empty_like(uni_a) + uni_b[...] = dt_a + assert_equal(uni_a, uni_b) + + # Datetime to long string - gh-9712 + assert_equal(str_a, dt_a.astype((np.bytes_, 128))) + str_b = np.empty(str_a.shape, dtype=(np.bytes_, 128)) + str_b[...] = dt_a + assert_equal(str_a, str_b) + + @pytest.mark.parametrize("time_dtype", ["m8[D]", "M8[Y]"]) + def test_time_byteswapping(self, time_dtype): + times = np.array(["2017", "NaT"], dtype=time_dtype) + times_swapped = times.astype(times.dtype.newbyteorder()) + assert_array_equal(times, times_swapped) + + unswapped = times_swapped.view(np.dtype("int64").newbyteorder()) + assert_array_equal(unswapped, times.view(np.int64)) + + @pytest.mark.parametrize(["time1", "time2"], + [("M8[s]", "M8[D]"), ("m8[s]", "m8[ns]")]) + def test_time_byteswapped_cast(self, time1, time2): + dtype1 = np.dtype(time1) + dtype2 = np.dtype(time2) + times = np.array(["2017", "NaT"], dtype=dtype1) + expected = times.astype(dtype2) + + # Test that every byte-swapping combination also returns the same + # results (previous tests check that this comparison works fine). + res = times.astype(dtype1.newbyteorder()).astype(dtype2) + assert_array_equal(res, expected) + res = times.astype(dtype2.newbyteorder()) + assert_array_equal(res, expected) + res = times.astype(dtype1.newbyteorder()).astype(dtype2.newbyteorder()) + assert_array_equal(res, expected) + + @pytest.mark.parametrize("time_dtype", ["m8[D]", "M8[Y]"]) + @pytest.mark.parametrize("str_dtype", ["U", "S"]) + def test_datetime_conversions_byteorders(self, str_dtype, time_dtype): + times = np.array(["2017", "NaT"], dtype=time_dtype) + # Unfortunately, timedelta does not roundtrip: + from_strings = np.array(["2017", "NaT"], dtype=str_dtype) + to_strings = times.astype(str_dtype) # assume this is correct + + # Check that conversion from times to string works if src is swapped: + times_swapped = times.astype(times.dtype.newbyteorder()) + res = times_swapped.astype(str_dtype) + assert_array_equal(res, to_strings) + # And also if both are swapped: + res = times_swapped.astype(to_strings.dtype.newbyteorder()) + assert_array_equal(res, to_strings) + # only destination is swapped: + res = times.astype(to_strings.dtype.newbyteorder()) + assert_array_equal(res, to_strings) + + # Check that conversion from string to times works if src is swapped: + from_strings_swapped = from_strings.astype( + from_strings.dtype.newbyteorder()) + res = from_strings_swapped.astype(time_dtype) + assert_array_equal(res, times) + # And if both are swapped: + res = from_strings_swapped.astype(times.dtype.newbyteorder()) + assert_array_equal(res, times) + # Only destination is swapped: + res = from_strings.astype(times.dtype.newbyteorder()) + assert_array_equal(res, times) + + def test_datetime_array_str(self): + a = np.array(['2011-03-16', '1920-01-01', '2013-05-19'], dtype='M') + assert_equal(str(a), "['2011-03-16' '1920-01-01' '2013-05-19']") + + a = np.array(['2011-03-16T13:55', '1920-01-01T03:12'], dtype='M') + assert_equal(np.array2string(a, separator=', ', + formatter={'datetime': lambda x: + f"'{np.datetime_as_string(x, timezone='UTC')}'"}), + "['2011-03-16T13:55Z', '1920-01-01T03:12Z']") + + # Check that one NaT doesn't corrupt subsequent entries + a = np.array(['2010', 'NaT', '2030']).astype('M') + assert_equal(str(a), "['2010' 'NaT' '2030']") + + def test_timedelta_array_str(self): + a = np.array([-1, 0, 100], dtype='m') + assert_equal(str(a), "[ -1 0 100]") + a = np.array(['NaT', 'NaT'], dtype='m') + assert_equal(str(a), "['NaT' 'NaT']") + # Check right-alignment with NaTs + a = np.array([-1, 'NaT', 0], dtype='m') + assert_equal(str(a), "[ -1 'NaT' 0]") + a = np.array([-1, 'NaT', 1234567], dtype='m') + assert_equal(str(a), "[ -1 'NaT' 1234567]") + + # Test with other byteorder: + a = np.array([-1, 'NaT', 1234567], dtype='>m') + assert_equal(str(a), "[ -1 'NaT' 1234567]") + a = np.array([-1, 'NaT', 1234567], dtype=''\np4\nNNNI-1\nI-1\nI0\n((dp5\n(S'us'\np6\n"\ + b"I1\nI1\nI1\ntp7\ntp8\ntp9\nb." + assert_equal(pickle.loads(pkl), np.dtype('>M8[us]')) + + def test_gh_29555(self): + # check that dtype metadata round-trips when none + dt = np.dtype('>M8[us]') + assert dt.metadata is None + for proto in range(2, pickle.HIGHEST_PROTOCOL + 1): + res = pickle.loads(pickle.dumps(dt, protocol=proto)) + assert_equal(res, dt) + assert res.metadata is None + + def test_setstate(self): + "Verify that datetime dtype __setstate__ can handle bad arguments" + dt = np.dtype('>M8[us]') + assert_raises(ValueError, dt.__setstate__, + (4, '>', None, None, None, -1, -1, 0, 1)) + assert_(dt.__reduce__()[2] == np.dtype('>M8[us]').__reduce__()[2]) + assert_raises(TypeError, dt.__setstate__, + (4, '>', None, None, None, -1, -1, 0, ({}, 'xxx'))) + assert_(dt.__reduce__()[2] == np.dtype('>M8[us]').__reduce__()[2]) + + def test_dtype_promotion(self): + # datetime datetime computes the metadata gcd + # timedelta timedelta computes the metadata gcd + for mM in ['m', 'M']: + assert_equal( + np.promote_types(np.dtype(mM + '8[2Y]'), np.dtype(mM + '8[2Y]')), + np.dtype(mM + '8[2Y]')) + assert_equal( + np.promote_types(np.dtype(mM + '8[12Y]'), np.dtype(mM + '8[15Y]')), + np.dtype(mM + '8[3Y]')) + assert_equal( + np.promote_types(np.dtype(mM + '8[62M]'), np.dtype(mM + '8[24M]')), + np.dtype(mM + '8[2M]')) + assert_equal( + np.promote_types(np.dtype(mM + '8[1W]'), np.dtype(mM + '8[2D]')), + np.dtype(mM + '8[1D]')) + assert_equal( + np.promote_types(np.dtype(mM + '8[W]'), np.dtype(mM + '8[13s]')), + np.dtype(mM + '8[s]')) + assert_equal( + np.promote_types(np.dtype(mM + '8[13W]'), np.dtype(mM + '8[49s]')), + np.dtype(mM + '8[7s]')) + # timedelta timedelta raises when there is no reasonable gcd + assert_raises(TypeError, np.promote_types, + np.dtype('m8[Y]'), np.dtype('m8[D]')) + assert_raises(TypeError, np.promote_types, + np.dtype('m8[M]'), np.dtype('m8[W]')) + # timedelta and float cannot be safely cast with each other + assert_raises(TypeError, np.promote_types, "float32", "m8") + assert_raises(TypeError, np.promote_types, "m8", "float32") + assert_raises(TypeError, np.promote_types, "uint64", "m8") + assert_raises(TypeError, np.promote_types, "m8", "uint64") + + # timedelta timedelta may overflow with big unit ranges + assert_raises(OverflowError, np.promote_types, + np.dtype('m8[W]'), np.dtype('m8[fs]')) + assert_raises(OverflowError, np.promote_types, + np.dtype('m8[s]'), np.dtype('m8[as]')) + + def test_cast_overflow(self): + # gh-4486 + def cast(): + numpy.datetime64("1971-01-01 00:00:00.000000000000000").astype("datetime64[{unit}]') + assert_equal(np.isnat(arr), res) + arr = np.array([123, -321, "NaT"], dtype=f'timedelta64[{unit}]') + assert_equal(np.isnat(arr), res) + + def test_isnat_error(self): + # Test that only datetime dtype arrays are accepted + for t in np.typecodes["All"]: + if t in np.typecodes["Datetime"]: + continue + assert_raises(TypeError, np.isnat, np.zeros(10, t)) + + def test_isfinite_scalar(self): + assert_(not np.isfinite(np.datetime64('NaT', 'ms'))) + assert_(not np.isfinite(np.datetime64('NaT', 'ns'))) + assert_(np.isfinite(np.datetime64('2038-01-19T03:14:07'))) + + assert_(not np.isfinite(np.timedelta64('NaT', "ms"))) + assert_(np.isfinite(np.timedelta64(34, "ms"))) + + @pytest.mark.parametrize('unit', ['Y', 'M', 'W', 'D', 'h', 'm', 's', 'ms', + 'us', 'ns', 'ps', 'fs', 'as']) + @pytest.mark.parametrize('dstr', ['datetime64[%s]', + 'timedelta64[%s]']) + def test_isfinite_isinf_isnan_units(self, unit, dstr): + '''check isfinite, isinf, isnan for all units of M, m dtypes + ''' + arr_val = [123, -321, "NaT"] + arr = np.array(arr_val, dtype=(dstr % unit)) + pos = np.array([True, True, False]) + neg = np.array([False, False, True]) + false = np.array([False, False, False]) + assert_equal(np.isfinite(arr), pos) + assert_equal(np.isinf(arr), false) + assert_equal(np.isnan(arr), neg) + + def test_assert_equal(self): + assert_raises(AssertionError, assert_equal, + np.datetime64('nat'), np.timedelta64('nat')) + + def test_corecursive_input(self): + # construct a co-recursive list + a, b = [], [] + a.append(b) + b.append(a) + obj_arr = np.array([None]) + obj_arr[0] = a + + # At some point this caused a stack overflow (gh-11154). Now raises + # ValueError since the nested list cannot be converted to a datetime. + assert_raises(ValueError, obj_arr.astype, 'M8') + assert_raises(ValueError, obj_arr.astype, 'm8') + + @pytest.mark.parametrize("shape", [(), (1,)]) + def test_discovery_from_object_array(self, shape): + arr = np.array("2020-10-10", dtype=object).reshape(shape) + res = np.array("2020-10-10", dtype="M8").reshape(shape) + assert res.dtype == np.dtype("M8[D]") + assert_equal(arr.astype("M8"), res) + arr[...] = np.bytes_("2020-10-10") # try a numpy string type + assert_equal(arr.astype("M8"), res) + arr = arr.astype("S") + assert_equal(arr.astype("S").astype("M8"), res) + + @pytest.mark.parametrize("time_unit", [ + "Y", "M", "W", "D", "h", "m", "s", "ms", "us", "ns", "ps", "fs", "as", + # compound units + "10D", "2M", + ]) + def test_limit_symmetry(self, time_unit): + """ + Dates should have symmetric limits around the unix epoch at +/-np.int64 + """ + epoch = np.datetime64(0, time_unit) + latest = np.datetime64(np.iinfo(np.int64).max, time_unit) + earliest = np.datetime64(-np.iinfo(np.int64).max, time_unit) + + # above should not have overflowed + assert earliest < epoch < latest + + @pytest.mark.parametrize("time_unit", [ + "Y", "M", + pytest.param("W", marks=pytest.mark.xfail(reason="gh-13197")), + "D", "h", "m", + "s", "ms", "us", "ns", "ps", "fs", "as", + pytest.param("10D", marks=pytest.mark.xfail(reason="similar to gh-13197")), + ]) + @pytest.mark.parametrize("sign", [-1, 1]) + def test_limit_str_roundtrip(self, time_unit, sign): + """ + Limits should roundtrip when converted to strings. + + This tests the conversion to and from npy_datetimestruct. + """ + # TODO: add absolute (gold standard) time span limit strings + limit = np.datetime64(np.iinfo(np.int64).max * sign, time_unit) + + # Convert to string and back. Explicit unit needed since the day and + # week reprs are not distinguishable. + limit_via_str = np.datetime64(str(limit), time_unit) + assert limit_via_str == limit + + def test_datetime_hash_nat(self): + nat1 = np.datetime64() + nat2 = np.datetime64() + assert nat1 is not nat2 + assert nat1 != nat2 + assert hash(nat1) != hash(nat2) + + @pytest.mark.parametrize('unit', ('Y', 'M', 'W', 'D', 'h', 'm', 's', 'ms', 'us')) + def test_datetime_hash_weeks(self, unit): + dt = np.datetime64(2348, 'W') # 2015-01-01 + dt2 = np.datetime64(dt, unit) + _assert_equal_hash(dt, dt2) + + dt3 = np.datetime64(int(dt2.astype(int)) + 1, unit) + assert hash(dt) != hash(dt3) # doesn't collide + + @pytest.mark.parametrize('unit', ('h', 'm', 's', 'ms', 'us')) + def test_datetime_hash_weeks_vs_pydatetime(self, unit): + dt = np.datetime64(2348, 'W') # 2015-01-01 + dt2 = np.datetime64(dt, unit) + pydt = dt2.astype(datetime.datetime) + assert isinstance(pydt, datetime.datetime) + _assert_equal_hash(pydt, dt2) + + @pytest.mark.parametrize('unit', ('Y', 'M', 'W', 'D', 'h', 'm', 's', 'ms', 'us')) + def test_datetime_hash_big_negative(self, unit): + dt = np.datetime64(-102894, 'W') # -002-01-01 + dt2 = np.datetime64(dt, unit) + _assert_equal_hash(dt, dt2) + + # can only go down to "fs" before integer overflow + @pytest.mark.parametrize('unit', ('m', 's', 'ms', 'us', 'ns', 'ps', 'fs')) + def test_datetime_hash_minutes(self, unit): + dt = np.datetime64(3, 'm') + dt2 = np.datetime64(dt, unit) + _assert_equal_hash(dt, dt2) + + @pytest.mark.parametrize('unit', ('ns', 'ps', 'fs', 'as')) + def test_datetime_hash_ns(self, unit): + dt = np.datetime64(3, 'ns') + dt2 = np.datetime64(dt, unit) + _assert_equal_hash(dt, dt2) + + dt3 = np.datetime64(int(dt2.astype(int)) + 1, unit) + assert hash(dt) != hash(dt3) # doesn't collide + + @pytest.mark.parametrize('wk', range(500000, 500010)) # 11552-09-04 + @pytest.mark.parametrize('unit', ('W', 'D', 'h', 'm', 's', 'ms', 'us')) + def test_datetime_hash_big_positive(self, wk, unit): + dt = np.datetime64(wk, 'W') + dt2 = np.datetime64(dt, unit) + _assert_equal_hash(dt, dt2) + + def test_timedelta_hash_generic(self): + assert_raises(ValueError, hash, np.timedelta64(123)) # generic + + @pytest.mark.parametrize('unit', ('Y', 'M')) + def test_timedelta_hash_year_month(self, unit): + td = np.timedelta64(45, 'Y') + td2 = np.timedelta64(td, unit) + _assert_equal_hash(td, td2) + + @pytest.mark.parametrize('unit', ('W', 'D', 'h', 'm', 's', 'ms', 'us')) + def test_timedelta_hash_weeks(self, unit): + td = np.timedelta64(10, 'W') + td2 = np.timedelta64(td, unit) + _assert_equal_hash(td, td2) + + td3 = np.timedelta64(int(td2.astype(int)) + 1, unit) + assert hash(td) != hash(td3) # doesn't collide + + @pytest.mark.parametrize('unit', ('W', 'D', 'h', 'm', 's', 'ms', 'us')) + def test_timedelta_hash_weeks_vs_pydelta(self, unit): + td = np.timedelta64(10, 'W') + td2 = np.timedelta64(td, unit) + pytd = td2.astype(datetime.timedelta) + assert isinstance(pytd, datetime.timedelta) + _assert_equal_hash(pytd, td2) + + @pytest.mark.parametrize('unit', ('ms', 'us', 'ns', 'ps', 'fs', 'as')) + def test_timedelta_hash_ms(self, unit): + td = np.timedelta64(3, 'ms') + td2 = np.timedelta64(td, unit) + _assert_equal_hash(td, td2) + + td3 = np.timedelta64(int(td2.astype(int)) + 1, unit) + assert hash(td) != hash(td3) # doesn't collide + + @pytest.mark.parametrize('wk', range(500000, 500010)) + @pytest.mark.parametrize('unit', ('W', 'D', 'h', 'm', 's', 'ms', 'us')) + def test_timedelta_hash_big_positive(self, wk, unit): + td = np.timedelta64(wk, 'W') + td2 = np.timedelta64(td, unit) + _assert_equal_hash(td, td2) + + @pytest.mark.parametrize( + "inputs, divisor, expected", + [ + ( + np.array( + [datetime.timedelta(seconds=20), datetime.timedelta(days=2)], + dtype="object", + ), + np.int64(2), + np.array( + [datetime.timedelta(seconds=10), datetime.timedelta(days=1)], + dtype="object", + ), + ), + ( + np.array( + [datetime.timedelta(seconds=20), datetime.timedelta(days=2)], + dtype="object", + ), + np.timedelta64(2, "s"), + np.array( + [10.0, 24.0 * 60.0 * 60.0], + dtype="object", + ), + ), + ( + datetime.timedelta(seconds=2), + np.array( + [datetime.timedelta(seconds=20), datetime.timedelta(days=2)], + dtype="object", + ), + np.array( + [1.0 / 10.0, 1.0 / (24.0 * 60.0 * 60.0)], + dtype="object", + ), + ), + ], + ) + def test_true_divide_object_by_timedelta( + self, + inputs: np.ndarray | type[np.generic], + divisor: np.ndarray | type[np.generic], + expected: np.ndarray, + ): + # gh-30025 + results = inputs / divisor + assert_array_equal(results, expected) + + +class TestDateTimeData: + + def test_basic(self): + a = np.array(['1980-03-23'], dtype=np.datetime64) + assert_equal(np.datetime_data(a.dtype), ('D', 1)) + + def test_bytes(self): + # byte units are converted to unicode + dt = np.datetime64('2000', (b'ms', 5)) + assert np.datetime_data(dt.dtype) == ('ms', 5) + + dt = np.datetime64('2000', b'5ms') + assert np.datetime_data(dt.dtype) == ('ms', 5) + + def test_non_ascii(self): + # μs is normalized to μ + dt = np.datetime64('2000', ('μs', 5)) + assert np.datetime_data(dt.dtype) == ('us', 5) + + dt = np.datetime64('2000', '5μs') + assert np.datetime_data(dt.dtype) == ('us', 5) + + +def test_comparisons_return_not_implemented(): + # GH#17017 + + class custom: + __array_priority__ = 10000 + + obj = custom() + + dt = np.datetime64('2000', 'ns') + td = dt - dt + + for item in [dt, td]: + assert item.__eq__(obj) is NotImplemented + assert item.__ne__(obj) is NotImplemented + assert item.__le__(obj) is NotImplemented + assert item.__lt__(obj) is NotImplemented + assert item.__ge__(obj) is NotImplemented + assert item.__gt__(obj) is NotImplemented diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_defchararray.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_defchararray.py new file mode 100644 index 0000000000000000000000000000000000000000..e98632b628293c2bf3b85427bd5d94ef2d0a08ec --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_defchararray.py @@ -0,0 +1,858 @@ +import pytest + +import numpy as np +from numpy._core.multiarray import _vec_string +from numpy.testing import ( + assert_, + assert_array_equal, + assert_equal, + assert_raises, + assert_raises_regex, +) + +kw_unicode_true = {'unicode': True} # make 2to3 work properly +kw_unicode_false = {'unicode': False} + +class TestBasic: + def test_from_object_array(self): + A = np.array([['abc', 2], + ['long ', '0123456789']], dtype='O') + B = np.char.array(A) + assert_equal(B.dtype.itemsize, 10) + assert_array_equal(B, [[b'abc', b'2'], + [b'long', b'0123456789']]) + + def test_from_object_array_unicode(self): + A = np.array([['abc', 'Sigma \u03a3'], + ['long ', '0123456789']], dtype='O') + assert_raises(ValueError, np.char.array, (A,)) + B = np.char.array(A, **kw_unicode_true) + assert_equal(B.dtype.itemsize, 10 * np.array('a', 'U').dtype.itemsize) + assert_array_equal(B, [['abc', 'Sigma \u03a3'], + ['long', '0123456789']]) + + def test_from_string_array(self): + A = np.array([[b'abc', b'foo'], + [b'long ', b'0123456789']]) + assert_equal(A.dtype.type, np.bytes_) + B = np.char.array(A) + assert_array_equal(B, A) + assert_equal(B.dtype, A.dtype) + assert_equal(B.shape, A.shape) + B[0, 0] = 'changed' + assert_(B[0, 0] != A[0, 0]) + C = np.char.asarray(A) + assert_array_equal(C, A) + assert_equal(C.dtype, A.dtype) + C[0, 0] = 'changed again' + assert_(C[0, 0] != B[0, 0]) + assert_(C[0, 0] == A[0, 0]) + + def test_from_unicode_array(self): + A = np.array([['abc', 'Sigma \u03a3'], + ['long ', '0123456789']]) + assert_equal(A.dtype.type, np.str_) + B = np.char.array(A) + assert_array_equal(B, A) + assert_equal(B.dtype, A.dtype) + assert_equal(B.shape, A.shape) + B = np.char.array(A, **kw_unicode_true) + assert_array_equal(B, A) + assert_equal(B.dtype, A.dtype) + assert_equal(B.shape, A.shape) + + def fail(): + np.char.array(A, **kw_unicode_false) + + assert_raises(UnicodeEncodeError, fail) + + def test_unicode_upconvert(self): + A = np.char.array(['abc']) + B = np.char.array(['\u03a3']) + assert_(issubclass((A + B).dtype.type, np.str_)) + + def test_from_string(self): + A = np.char.array(b'abc') + assert_equal(len(A), 1) + assert_equal(len(A[0]), 3) + assert_(issubclass(A.dtype.type, np.bytes_)) + + def test_from_unicode(self): + A = np.char.array('\u03a3') + assert_equal(len(A), 1) + assert_equal(len(A[0]), 1) + assert_equal(A.itemsize, 4) + assert_(issubclass(A.dtype.type, np.str_)) + +class TestVecString: + def test_non_existent_method(self): + + def fail(): + _vec_string('a', np.bytes_, 'bogus') + + assert_raises(AttributeError, fail) + + def test_non_string_array(self): + + def fail(): + _vec_string(1, np.bytes_, 'strip') + + assert_raises(TypeError, fail) + + def test_invalid_args_tuple(self): + + def fail(): + _vec_string(['a'], np.bytes_, 'strip', 1) + + assert_raises(TypeError, fail) + + def test_invalid_type_descr(self): + + def fail(): + _vec_string(['a'], 'BOGUS', 'strip') + + assert_raises(TypeError, fail) + + def test_invalid_function_args(self): + + def fail(): + _vec_string(['a'], np.bytes_, 'strip', (1,)) + + assert_raises(TypeError, fail) + + def test_invalid_result_type(self): + + def fail(): + _vec_string(['a'], np.int_, 'strip') + + assert_raises(TypeError, fail) + + def test_broadcast_error(self): + + def fail(): + _vec_string([['abc', 'def']], np.int_, 'find', (['a', 'd', 'j'],)) + + assert_raises(ValueError, fail) + +class TestWhitespace: + def test1(self): + A = np.array([['abc ', '123 '], + ['789 ', 'xyz ']]).view(np.char.chararray) + B = np.array([['abc', '123'], + ['789', 'xyz']]).view(np.char.chararray) + assert_(np.all(A == B)) + assert_(np.all(A >= B)) + assert_(np.all(A <= B)) + assert_(not np.any(A > B)) + assert_(not np.any(A < B)) + assert_(not np.any(A != B)) + +class TestChar: + def test_it(self): + A = np.array('abc1', dtype='c').view(np.char.chararray) + assert_equal(A.shape, (4,)) + assert_equal(A.upper()[:2].tobytes(), b'AB') + +class TestComparisons: + def A(self): + return np.array([['abc', 'abcc', '123'], + ['789', 'abc', 'xyz']]).view(np.char.chararray) + + def B(self): + return np.array([['efg', 'efg', '123 '], + ['051', 'efgg', 'tuv']]).view(np.char.chararray) + + def test_not_equal(self): + A, B = self.A(), self.B() + assert_array_equal((A != B), + [[True, True, False], [True, True, True]]) + + def test_equal(self): + A, B = self.A(), self.B() + assert_array_equal((A == B), + [[False, False, True], [False, False, False]]) + + def test_greater_equal(self): + A, B = self.A(), self.B() + assert_array_equal((A >= B), + [[False, False, True], [True, False, True]]) + + def test_less_equal(self): + A, B = self.A(), self.B() + assert_array_equal((A <= B), + [[True, True, True], [False, True, False]]) + + def test_greater(self): + A, B = self.A(), self.B() + assert_array_equal((A > B), + [[False, False, False], [True, False, True]]) + + def test_less(self): + A, B = self.A(), self.B() + assert_array_equal((A < B), + [[True, True, False], [False, True, False]]) + + def test_type(self): + A, B = self.A(), self.B() + out1 = np.char.equal(A, B) + out2 = np.char.equal('a', 'a') + assert_(isinstance(out1, np.ndarray)) + assert_(isinstance(out2, np.ndarray)) + +class TestComparisonsMixed1(TestComparisons): + """Ticket #1276""" + + def B(self): + return np.array( + [['efg', 'efg', '123 '], + ['051', 'efgg', 'tuv']], np.str_).view(np.char.chararray) + +class TestComparisonsMixed2(TestComparisons): + """Ticket #1276""" + + def A(self): + return np.array( + [['abc', 'abcc', '123'], + ['789', 'abc', 'xyz']], np.str_).view(np.char.chararray) + +class TestInformation: + def A(self): + return np.array([[' abc ', ''], + ['12345', 'MixedCase'], + ['123 \t 345 \0 ', 'UPPER']]) \ + .view(np.char.chararray) + + def B(self): + return np.array([[' \u03a3 ', ''], + ['12345', 'MixedCase'], + ['123 \t 345 \0 ', 'UPPER']]) \ + .view(np.char.chararray) + + def test_len(self): + A, B = self.A(), self.B() + assert_(issubclass(np.char.str_len(A).dtype.type, np.integer)) + assert_array_equal(np.char.str_len(A), [[5, 0], [5, 9], [12, 5]]) + assert_array_equal(np.char.str_len(B), [[3, 0], [5, 9], [12, 5]]) + + def test_count(self): + A, B = self.A(), self.B() + assert_(issubclass(A.count('').dtype.type, np.integer)) + assert_array_equal(A.count('a'), [[1, 0], [0, 1], [0, 0]]) + assert_array_equal(A.count('123'), [[0, 0], [1, 0], [1, 0]]) + # Python doesn't seem to like counting NULL characters + assert_array_equal(A.count('a', 0, 2), [[1, 0], [0, 0], [0, 0]]) + assert_array_equal(B.count('a'), [[0, 0], [0, 1], [0, 0]]) + assert_array_equal(B.count('123'), [[0, 0], [1, 0], [1, 0]]) + + def test_endswith(self): + A = self.A() + assert_(issubclass(A.endswith('').dtype.type, np.bool)) + assert_array_equal(A.endswith(' '), [[1, 0], [0, 0], [1, 0]]) + assert_array_equal(A.endswith('3', 0, 3), [[0, 0], [1, 0], [1, 0]]) + + def fail(): + A.endswith('3', 'fdjk') + + assert_raises(TypeError, fail) + + @pytest.mark.parametrize( + "dtype, encode", + [("U", str), + ("S", lambda x: x.encode('ascii')), + ]) + def test_find(self, dtype, encode): + A = self.A().astype(dtype) + assert_(issubclass(A.find(encode('a')).dtype.type, np.integer)) + assert_array_equal(A.find(encode('a')), + [[1, -1], [-1, 6], [-1, -1]]) + assert_array_equal(A.find(encode('3')), + [[-1, -1], [2, -1], [2, -1]]) + assert_array_equal(A.find(encode('a'), 0, 2), + [[1, -1], [-1, -1], [-1, -1]]) + assert_array_equal(A.find([encode('1'), encode('P')]), + [[-1, -1], [0, -1], [0, 1]]) + C = (np.array(['ABCDEFGHIJKLMNOPQRSTUVWXYZ', + '01234567890123456789012345']) + .view(np.char.chararray)).astype(dtype) + assert_array_equal(C.find(encode('M')), [12, -1]) + + def test_index(self): + A = self.A() + + def fail(): + A.index('a') + + assert_raises(ValueError, fail) + assert_(np.char.index('abcba', 'b') == 1) + assert_(issubclass(np.char.index('abcba', 'b').dtype.type, np.integer)) + + def test_isalnum(self): + A = self.A() + assert_(issubclass(A.isalnum().dtype.type, np.bool)) + assert_array_equal(A.isalnum(), [[False, False], [True, True], [False, True]]) + + def test_isalpha(self): + A = self.A() + assert_(issubclass(A.isalpha().dtype.type, np.bool)) + assert_array_equal(A.isalpha(), [[False, False], [False, True], [False, True]]) + + def test_isdigit(self): + A = self.A() + assert_(issubclass(A.isdigit().dtype.type, np.bool)) + assert_array_equal(A.isdigit(), [[False, False], [True, False], [False, False]]) + + def test_islower(self): + A = self.A() + assert_(issubclass(A.islower().dtype.type, np.bool)) + assert_array_equal(A.islower(), [[True, False], [False, False], [False, False]]) + + def test_isspace(self): + A = self.A() + assert_(issubclass(A.isspace().dtype.type, np.bool)) + assert_array_equal(A.isspace(), [[False, False], [False, False], [False, False]]) + + def test_istitle(self): + A = self.A() + assert_(issubclass(A.istitle().dtype.type, np.bool)) + assert_array_equal(A.istitle(), [[False, False], [False, False], [False, False]]) + + def test_isupper(self): + A = self.A() + assert_(issubclass(A.isupper().dtype.type, np.bool)) + assert_array_equal(A.isupper(), [[False, False], [False, False], [False, True]]) + + def test_rfind(self): + A = self.A() + assert_(issubclass(A.rfind('a').dtype.type, np.integer)) + assert_array_equal(A.rfind('a'), [[1, -1], [-1, 6], [-1, -1]]) + assert_array_equal(A.rfind('3'), [[-1, -1], [2, -1], [6, -1]]) + assert_array_equal(A.rfind('a', 0, 2), [[1, -1], [-1, -1], [-1, -1]]) + assert_array_equal(A.rfind(['1', 'P']), [[-1, -1], [0, -1], [0, 2]]) + + def test_rindex(self): + A = self.A() + + def fail(): + A.rindex('a') + + assert_raises(ValueError, fail) + assert_(np.char.rindex('abcba', 'b') == 3) + assert_(issubclass(np.char.rindex('abcba', 'b').dtype.type, np.integer)) + + def test_startswith(self): + A = self.A() + assert_(issubclass(A.startswith('').dtype.type, np.bool)) + assert_array_equal(A.startswith(' '), [[1, 0], [0, 0], [0, 0]]) + assert_array_equal(A.startswith('1', 0, 3), [[0, 0], [1, 0], [1, 0]]) + + def fail(): + A.startswith('3', 'fdjk') + + assert_raises(TypeError, fail) + +class TestMethods: + def A(self): + return np.array([[' abc ', ''], + ['12345', 'MixedCase'], + ['123 \t 345 \0 ', 'UPPER']], + dtype='S').view(np.char.chararray) + + def B(self): + return np.array([[' \u03a3 ', ''], + ['12345', 'MixedCase'], + ['123 \t 345 \0 ', 'UPPER']]) \ + .view(np.char.chararray) + + def test_capitalize(self): + A, B = self.A(), self.B() + tgt = [[b' abc ', b''], + [b'12345', b'Mixedcase'], + [b'123 \t 345 \0 ', b'Upper']] + assert_(issubclass(A.capitalize().dtype.type, np.bytes_)) + assert_array_equal(A.capitalize(), tgt) + + tgt = [[' \u03c3 ', ''], + ['12345', 'Mixedcase'], + ['123 \t 345 \0 ', 'Upper']] + assert_(issubclass(B.capitalize().dtype.type, np.str_)) + assert_array_equal(B.capitalize(), tgt) + + def test_center(self): + A = self.A() + assert_(issubclass(A.center(10).dtype.type, np.bytes_)) + C = A.center([10, 20]) + assert_array_equal(np.char.str_len(C), [[10, 20], [10, 20], [12, 20]]) + + C = A.center(20, b'#') + assert_(np.all(C.startswith(b'#'))) + assert_(np.all(C.endswith(b'#'))) + + C = np.char.center(b'FOO', [[10, 20], [15, 8]]) + tgt = [[b' FOO ', b' FOO '], + [b' FOO ', b' FOO ']] + assert_(issubclass(C.dtype.type, np.bytes_)) + assert_array_equal(C, tgt) + + def test_decode(self): + A = np.char.array([b'\\u03a3']) + assert_(A.decode('unicode-escape')[0] == '\u03a3') + + def test_encode(self): + B = self.B().encode('unicode_escape') + assert_(B[0][0] == ' \\u03a3 '.encode('latin1')) + + def test_expandtabs(self): + T = self.A().expandtabs() + assert_(T[2, 0] == b'123 345 \0') + + def test_join(self): + # NOTE: list(b'123') == [49, 50, 51] + # so that b','.join(b'123') results to an error on Py3 + A0 = self.A().decode('ascii') + + A = np.char.join([',', '#'], A0) + assert_(issubclass(A.dtype.type, np.str_)) + tgt = np.array([[' ,a,b,c, ', ''], + ['1,2,3,4,5', 'M#i#x#e#d#C#a#s#e'], + ['1,2,3, ,\t, ,3,4,5, ,\x00, ', 'U#P#P#E#R']]) + assert_array_equal(np.char.join([',', '#'], A0), tgt) + + def test_ljust(self): + A = self.A() + assert_(issubclass(A.ljust(10).dtype.type, np.bytes_)) + + C = A.ljust([10, 20]) + assert_array_equal(np.char.str_len(C), [[10, 20], [10, 20], [12, 20]]) + + C = A.ljust(20, b'#') + assert_array_equal(C.startswith(b'#'), [ + [False, True], [False, False], [False, False]]) + assert_(np.all(C.endswith(b'#'))) + + C = np.char.ljust(b'FOO', [[10, 20], [15, 8]]) + tgt = [[b'FOO ', b'FOO '], + [b'FOO ', b'FOO ']] + assert_(issubclass(C.dtype.type, np.bytes_)) + assert_array_equal(C, tgt) + + def test_lower(self): + A, B = self.A(), self.B() + tgt = [[b' abc ', b''], + [b'12345', b'mixedcase'], + [b'123 \t 345 \0 ', b'upper']] + assert_(issubclass(A.lower().dtype.type, np.bytes_)) + assert_array_equal(A.lower(), tgt) + + tgt = [[' \u03c3 ', ''], + ['12345', 'mixedcase'], + ['123 \t 345 \0 ', 'upper']] + assert_(issubclass(B.lower().dtype.type, np.str_)) + assert_array_equal(B.lower(), tgt) + + def test_lstrip(self): + A, B = self.A(), self.B() + tgt = [[b'abc ', b''], + [b'12345', b'MixedCase'], + [b'123 \t 345 \0 ', b'UPPER']] + assert_(issubclass(A.lstrip().dtype.type, np.bytes_)) + assert_array_equal(A.lstrip(), tgt) + + tgt = [[b' abc', b''], + [b'2345', b'ixedCase'], + [b'23 \t 345 \x00', b'UPPER']] + assert_array_equal(A.lstrip([b'1', b'M']), tgt) + + tgt = [['\u03a3 ', ''], + ['12345', 'MixedCase'], + ['123 \t 345 \0 ', 'UPPER']] + assert_(issubclass(B.lstrip().dtype.type, np.str_)) + assert_array_equal(B.lstrip(), tgt) + + def test_partition(self): + A = self.A() + P = A.partition([b'3', b'M']) + tgt = [[(b' abc ', b'', b''), (b'', b'', b'')], + [(b'12', b'3', b'45'), (b'', b'M', b'ixedCase')], + [(b'12', b'3', b' \t 345 \0 '), (b'UPPER', b'', b'')]] + assert_(issubclass(P.dtype.type, np.bytes_)) + assert_array_equal(P, tgt) + + def test_replace(self): + A = self.A() + R = A.replace([b'3', b'a'], + [b'##########', b'@']) + tgt = [[b' abc ', b''], + [b'12##########45', b'MixedC@se'], + [b'12########## \t ##########45 \x00 ', b'UPPER']] + assert_(issubclass(R.dtype.type, np.bytes_)) + assert_array_equal(R, tgt) + # Test special cases that should just return the input array, + # since replacements are not possible or do nothing. + S1 = A.replace(b'A very long byte string, longer than A', b'') + assert_array_equal(S1, A) + S2 = A.replace(b'', b'') + assert_array_equal(S2, A) + S3 = A.replace(b'3', b'3') + assert_array_equal(S3, A) + S4 = A.replace(b'3', b'', count=0) + assert_array_equal(S4, A) + + def test_replace_count_and_size(self): + a = np.array(['0123456789' * i for i in range(4)] + ).view(np.char.chararray) + r1 = a.replace('5', 'ABCDE') + assert r1.dtype.itemsize == (3 * 10 + 3 * 4) * 4 + assert_array_equal(r1, np.array(['01234ABCDE6789' * i + for i in range(4)])) + r2 = a.replace('5', 'ABCDE', count=1) + assert r2.dtype.itemsize == (3 * 10 + 4) * 4 + r3 = a.replace('5', 'ABCDE', count=0) + assert r3.dtype.itemsize == a.dtype.itemsize + assert_array_equal(r3, a) + # Negative values mean to replace all. + r4 = a.replace('5', 'ABCDE', count=-1) + assert r4.dtype.itemsize == (3 * 10 + 3 * 4) * 4 + assert_array_equal(r4, r1) + # We can do count on an element-by-element basis. + r5 = a.replace('5', 'ABCDE', count=[-1, -1, -1, 1]) + assert r5.dtype.itemsize == (3 * 10 + 4) * 4 + assert_array_equal(r5, np.array( + ['01234ABCDE6789' * i for i in range(3)] + + ['01234ABCDE6789' + '0123456789' * 2])) + + def test_replace_broadcasting(self): + a = np.array('0,0,0').view(np.char.chararray) + r1 = a.replace('0', '1', count=np.arange(3)) + assert r1.dtype == a.dtype + assert_array_equal(r1, np.array(['0,0,0', '1,0,0', '1,1,0'])) + r2 = a.replace('0', [['1'], ['2']], count=np.arange(1, 4)) + assert_array_equal(r2, np.array([['1,0,0', '1,1,0', '1,1,1'], + ['2,0,0', '2,2,0', '2,2,2']])) + r3 = a.replace(['0', '0,0', '0,0,0'], 'X') + assert_array_equal(r3, np.array(['X,X,X', 'X,0', 'X'])) + + def test_rjust(self): + A = self.A() + assert_(issubclass(A.rjust(10).dtype.type, np.bytes_)) + + C = A.rjust([10, 20]) + assert_array_equal(np.char.str_len(C), [[10, 20], [10, 20], [12, 20]]) + + C = A.rjust(20, b'#') + assert_(np.all(C.startswith(b'#'))) + assert_array_equal(C.endswith(b'#'), + [[False, True], [False, False], [False, False]]) + + C = np.char.rjust(b'FOO', [[10, 20], [15, 8]]) + tgt = [[b' FOO', b' FOO'], + [b' FOO', b' FOO']] + assert_(issubclass(C.dtype.type, np.bytes_)) + assert_array_equal(C, tgt) + + def test_rpartition(self): + A = self.A() + P = A.rpartition([b'3', b'M']) + tgt = [[(b'', b'', b' abc '), (b'', b'', b'')], + [(b'12', b'3', b'45'), (b'', b'M', b'ixedCase')], + [(b'123 \t ', b'3', b'45 \0 '), (b'', b'', b'UPPER')]] + assert_(issubclass(P.dtype.type, np.bytes_)) + assert_array_equal(P, tgt) + + def test_rsplit(self): + A = self.A().rsplit(b'3') + tgt = [[[b' abc '], [b'']], + [[b'12', b'45'], [b'MixedCase']], + [[b'12', b' \t ', b'45 \x00 '], [b'UPPER']]] + assert_(issubclass(A.dtype.type, np.object_)) + assert_equal(A.tolist(), tgt) + + def test_rstrip(self): + A, B = self.A(), self.B() + assert_(issubclass(A.rstrip().dtype.type, np.bytes_)) + + tgt = [[b' abc', b''], + [b'12345', b'MixedCase'], + [b'123 \t 345', b'UPPER']] + assert_array_equal(A.rstrip(), tgt) + + tgt = [[b' abc ', b''], + [b'1234', b'MixedCase'], + [b'123 \t 345 \x00', b'UPP'] + ] + assert_array_equal(A.rstrip([b'5', b'ER']), tgt) + + tgt = [[' \u03a3', ''], + ['12345', 'MixedCase'], + ['123 \t 345', 'UPPER']] + assert_(issubclass(B.rstrip().dtype.type, np.str_)) + assert_array_equal(B.rstrip(), tgt) + + def test_strip(self): + A, B = self.A(), self.B() + tgt = [[b'abc', b''], + [b'12345', b'MixedCase'], + [b'123 \t 345', b'UPPER']] + assert_(issubclass(A.strip().dtype.type, np.bytes_)) + assert_array_equal(A.strip(), tgt) + + tgt = [[b' abc ', b''], + [b'234', b'ixedCas'], + [b'23 \t 345 \x00', b'UPP']] + assert_array_equal(A.strip([b'15', b'EReM']), tgt) + + tgt = [['\u03a3', ''], + ['12345', 'MixedCase'], + ['123 \t 345', 'UPPER']] + assert_(issubclass(B.strip().dtype.type, np.str_)) + assert_array_equal(B.strip(), tgt) + + def test_split(self): + A = self.A().split(b'3') + tgt = [ + [[b' abc '], [b'']], + [[b'12', b'45'], [b'MixedCase']], + [[b'12', b' \t ', b'45 \x00 '], [b'UPPER']]] + assert_(issubclass(A.dtype.type, np.object_)) + assert_equal(A.tolist(), tgt) + + def test_splitlines(self): + A = np.char.array(['abc\nfds\nwer']).splitlines() + assert_(issubclass(A.dtype.type, np.object_)) + assert_(A.shape == (1,)) + assert_(len(A[0]) == 3) + + def test_swapcase(self): + A, B = self.A(), self.B() + tgt = [[b' ABC ', b''], + [b'12345', b'mIXEDcASE'], + [b'123 \t 345 \0 ', b'upper']] + assert_(issubclass(A.swapcase().dtype.type, np.bytes_)) + assert_array_equal(A.swapcase(), tgt) + + tgt = [[' \u03c3 ', ''], + ['12345', 'mIXEDcASE'], + ['123 \t 345 \0 ', 'upper']] + assert_(issubclass(B.swapcase().dtype.type, np.str_)) + assert_array_equal(B.swapcase(), tgt) + + def test_title(self): + A, B = self.A(), self.B() + tgt = [[b' Abc ', b''], + [b'12345', b'Mixedcase'], + [b'123 \t 345 \0 ', b'Upper']] + assert_(issubclass(A.title().dtype.type, np.bytes_)) + assert_array_equal(A.title(), tgt) + + tgt = [[' \u03a3 ', ''], + ['12345', 'Mixedcase'], + ['123 \t 345 \0 ', 'Upper']] + assert_(issubclass(B.title().dtype.type, np.str_)) + assert_array_equal(B.title(), tgt) + + def test_upper(self): + A, B = self.A(), self.B() + tgt = [[b' ABC ', b''], + [b'12345', b'MIXEDCASE'], + [b'123 \t 345 \0 ', b'UPPER']] + assert_(issubclass(A.upper().dtype.type, np.bytes_)) + assert_array_equal(A.upper(), tgt) + + tgt = [[' \u03a3 ', ''], + ['12345', 'MIXEDCASE'], + ['123 \t 345 \0 ', 'UPPER']] + assert_(issubclass(B.upper().dtype.type, np.str_)) + assert_array_equal(B.upper(), tgt) + + def test_isnumeric(self): + A, B = self.A(), self.B() + + def fail(): + A.isnumeric() + + assert_raises(TypeError, fail) + assert_(issubclass(B.isnumeric().dtype.type, np.bool)) + assert_array_equal(B.isnumeric(), [ + [False, False], [True, False], [False, False]]) + + def test_isdecimal(self): + A, B = self.A(), self.B() + + def fail(): + A.isdecimal() + + assert_raises(TypeError, fail) + assert_(issubclass(B.isdecimal().dtype.type, np.bool)) + assert_array_equal(B.isdecimal(), [ + [False, False], [True, False], [False, False]]) + +class TestOperations: + def A(self): + return np.array([['abc', '123'], + ['789', 'xyz']]).view(np.char.chararray) + + def B(self): + return np.array([['efg', '456'], + ['051', 'tuv']]).view(np.char.chararray) + + def test_argsort(self): + arr = np.array(['abc'] * 4).view(np.char.chararray) + actual = arr.argsort(stable=True) + assert_array_equal(actual, [0, 1, 2, 3]) + + def test_add(self): + A, B = self.A(), self.B() + AB = np.array([['abcefg', '123456'], + ['789051', 'xyztuv']]).view(np.char.chararray) + assert_array_equal(AB, (A + B)) + assert_(len((A + B)[0][0]) == 6) + + def test_radd(self): + A = self.A() + QA = np.array([['qabc', 'q123'], + ['q789', 'qxyz']]).view(np.char.chararray) + assert_array_equal(QA, ('q' + A)) + + def test_mul(self): + A = self.A() + for r in (2, 3, 5, 7, 197): + Ar = np.array([[A[0, 0] * r, A[0, 1] * r], + [A[1, 0] * r, A[1, 1] * r]]).view(np.char.chararray) + + assert_array_equal(Ar, (A * r)) + + for ob in [object(), 'qrs']: + with assert_raises_regex(ValueError, + 'Can only multiply by integers'): + A * ob + + def test_rmul(self): + A = self.A() + for r in (2, 3, 5, 7, 197): + Ar = np.array([[A[0, 0] * r, A[0, 1] * r], + [A[1, 0] * r, A[1, 1] * r]]).view(np.char.chararray) + assert_array_equal(Ar, (r * A)) + + for ob in [object(), 'qrs']: + with assert_raises_regex(ValueError, + 'Can only multiply by integers'): + ob * A + + def test_mod(self): + """Ticket #856""" + F = np.array([['%d', '%f'], ['%s', '%r']]).view(np.char.chararray) + C = np.array([[3, 7], [19, 1]], dtype=np.int64) + FC = np.array([['3', '7.000000'], + ['19', 'np.int64(1)']]).view(np.char.chararray) + assert_array_equal(FC, F % C) + + A = np.array([['%.3f', '%d'], ['%s', '%r']]).view(np.char.chararray) + A1 = np.array([['1.000', '1'], + ['1', repr(np.array(1)[()])]]).view(np.char.chararray) + assert_array_equal(A1, (A % 1)) + + A2 = np.array([['1.000', '2'], + ['3', repr(np.array(4)[()])]]).view(np.char.chararray) + assert_array_equal(A2, (A % [[1, 2], [3, 4]])) + + def test_rmod(self): + A = self.A() + assert_(f"{A}" == str(A)) + assert_(f"{A!r}" == repr(A)) + + for ob in [42, object()]: + with assert_raises_regex( + TypeError, "unsupported operand type.* and 'chararray'"): + ob % A + + def test_slice(self): + """Regression test for https://github.com/numpy/numpy/issues/5982""" + + arr = np.array([['abc ', 'def '], ['geh ', 'ijk ']], + dtype='S4').view(np.char.chararray) + sl1 = arr[:] + assert_array_equal(sl1, arr) + assert_(sl1.base is arr) + assert_(sl1.base.base is arr.base) + + sl2 = arr[:, :] + assert_array_equal(sl2, arr) + assert_(sl2.base is arr) + assert_(sl2.base.base is arr.base) + + assert_(arr[0, 0] == b'abc') + + @pytest.mark.parametrize('data', [['plate', ' ', 'shrimp'], + [b'retro', b' ', b'encabulator']]) + def test_getitem_length_zero_item(self, data): + # Regression test for gh-26375. + a = np.char.array(data) + # a.dtype.type() will be an empty string or bytes instance. + # The equality test will fail if a[1] has the wrong type + # or does not have length 0. + assert_equal(a[1], a.dtype.type()) + +class TestMethodsEmptyArray: + def test_encode(self): + res = np.char.encode(np.array([], dtype='U')) + assert_array_equal(res, []) + assert_(res.dtype.char == 'S') + + def test_decode(self): + res = np.char.decode(np.array([], dtype='S')) + assert_array_equal(res, []) + assert_(res.dtype.char == 'U') + + def test_decode_with_reshape(self): + res = np.char.decode(np.array([], dtype='S').reshape((1, 0, 1))) + assert_(res.shape == (1, 0, 1)) + +class TestMethodsScalarValues: + def test_mod(self): + A = np.array([[' abc ', ''], + ['12345', 'MixedCase'], + ['123 \t 345 \0 ', 'UPPER']], dtype='S') + tgt = [[b'123 abc ', b'123'], + [b'12312345', b'123MixedCase'], + [b'123123 \t 345 \0 ', b'123UPPER']] + assert_array_equal(np.char.mod(b"123%s", A), tgt) + + def test_decode(self): + bytestring = b'\x81\xc1\x81\xc1\x81\xc1' + assert_equal(np.char.decode(bytestring, encoding='cp037'), + 'aAaAaA') + + def test_encode(self): + unicode = 'aAaAaA' + assert_equal(np.char.encode(unicode, encoding='cp037'), + b'\x81\xc1\x81\xc1\x81\xc1') + + def test_expandtabs(self): + s = "\tone level of indentation\n\t\ttwo levels of indentation" + assert_equal( + np.char.expandtabs(s, tabsize=2), + " one level of indentation\n two levels of indentation" + ) + + def test_join(self): + seps = np.array(['-', '_']) + assert_array_equal(np.char.join(seps, 'hello'), + ['h-e-l-l-o', 'h_e_l_l_o']) + + def test_partition(self): + assert_equal(np.char.partition('This string', ' '), + ['This', ' ', 'string']) + + def test_rpartition(self): + assert_equal(np.char.rpartition('This string here', ' '), + ['This string', ' ', 'here']) + + def test_replace(self): + assert_equal(np.char.replace('Python is good', 'good', 'great'), + 'Python is great') + +def test_empty_indexing(): + """Regression test for ticket 1948.""" + # Check that indexing a chararray with an empty list/array returns an + # empty chararray instead of a chararray with a single empty string in it. + s = np.char.chararray((4,)) + assert_(s[[]].size == 0) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_deprecations.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_deprecations.py new file mode 100644 index 0000000000000000000000000000000000000000..7cb1fee9b890f955c5683bfb8e0609baf6d880a0 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_deprecations.py @@ -0,0 +1,460 @@ +""" +Tests related to deprecation warnings. Also a convenient place +to document how deprecations should eventually be turned into errors. + +""" +import contextlib +import warnings + +import pytest + +import numpy as np +import numpy._core._struct_ufunc_tests as struct_ufunc +from numpy._core._multiarray_tests import fromstring_null_term_c_api # noqa: F401 +from numpy.testing import assert_raises + + +class _DeprecationTestCase: + # Just as warning: warnings uses re.match, so the start of this message + # must match. + message = '' + warning_cls = DeprecationWarning + + @contextlib.contextmanager + def filter_warnings(self): + with warnings.catch_warnings(record=True) as w: + # Do *not* ignore other DeprecationWarnings. Ignoring warnings + # can give very confusing results because of + # https://bugs.python.org/issue4180 and it is probably simplest to + # try to keep the tests cleanly giving only the right warning type. + # (While checking them set to "error" those are ignored anyway) + # We still have them show up, because otherwise they would be raised + warnings.filterwarnings("always", category=self.warning_cls) + warnings.filterwarnings("always", message=self.message, + category=self.warning_cls) + yield w + return + + def assert_deprecated(self, function, num=1, ignore_others=False, + function_fails=False, + exceptions=np._NoValue, + args=(), kwargs={}): + """Test if DeprecationWarnings are given and raised. + + This first checks if the function when called gives `num` + DeprecationWarnings, after that it tries to raise these + DeprecationWarnings and compares them with `exceptions`. + The exceptions can be different for cases where this code path + is simply not anticipated and the exception is replaced. + + Parameters + ---------- + function : callable + The function to test + num : int + Number of DeprecationWarnings to expect. This should normally be 1. + ignore_others : bool + Whether warnings of the wrong type should be ignored (note that + the message is not checked) + function_fails : bool + If the function would normally fail, setting this will check for + warnings inside a try/except block. + exceptions : Exception or tuple of Exceptions + Exception to expect when turning the warnings into an error. + The default checks for DeprecationWarnings. If exceptions is + empty the function is expected to run successfully. + args : tuple + Arguments for `function` + kwargs : dict + Keyword arguments for `function` + """ + __tracebackhide__ = True # Hide traceback for py.test + + if exceptions is np._NoValue: + exceptions = (self.warning_cls,) + + if function_fails: + context_manager = contextlib.suppress(Exception) + else: + context_manager = contextlib.nullcontext() + with context_manager: + with self.filter_warnings() as w_context: + function(*args, **kwargs) + + # just in case, clear the registry + num_found = 0 + for warning in w_context: + if warning.category is self.warning_cls: + num_found += 1 + elif not ignore_others: + raise AssertionError( + "expected %s but got: %s" % + (self.warning_cls.__name__, warning.category)) + if num is not None and num_found != num: + msg = f"{len(w_context)} warnings found but {num} expected." + lst = [str(w) for w in w_context] + raise AssertionError("\n".join([msg] + lst)) + + with warnings.catch_warnings(): + warnings.filterwarnings("error", message=self.message, + category=self.warning_cls) + try: + function(*args, **kwargs) + if exceptions != (): + raise AssertionError( + "No error raised during function call") + except exceptions: + if exceptions == (): + raise AssertionError( + "Error raised during function call") + + def assert_not_deprecated(self, function, args=(), kwargs={}): + """Test that warnings are not raised. + + This is just a shorthand for: + + self.assert_deprecated(function, num=0, ignore_others=True, + exceptions=tuple(), args=args, kwargs=kwargs) + """ + self.assert_deprecated(function, num=0, ignore_others=True, + exceptions=(), args=args, kwargs=kwargs) + + +class _VisibleDeprecationTestCase(_DeprecationTestCase): + warning_cls = np.exceptions.VisibleDeprecationWarning + + +class TestTestDeprecated: + def test_assert_deprecated(self): + test_case_instance = _DeprecationTestCase() + assert_raises(AssertionError, + test_case_instance.assert_deprecated, + lambda: None) + + def foo(): + warnings.warn("foo", category=DeprecationWarning, stacklevel=2) + + test_case_instance.assert_deprecated(foo) + + +class TestBincount(_DeprecationTestCase): + # 2024-07-29, 2.1.0 + @pytest.mark.parametrize('badlist', [[0.5, 1.2, 1.5], + ['0', '1', '1']]) + def test_bincount_bad_list(self, badlist): + self.assert_deprecated(lambda: np.bincount(badlist)) + + +class BuiltInRoundComplexDType(_DeprecationTestCase): + # 2020-03-31 1.19.0 + deprecated_types = [np.csingle, np.cdouble, np.clongdouble] + not_deprecated_types = [ + np.int8, np.int16, np.int32, np.int64, + np.uint8, np.uint16, np.uint32, np.uint64, + np.float16, np.float32, np.float64, + ] + + def test_deprecated(self): + for scalar_type in self.deprecated_types: + scalar = scalar_type(0) + self.assert_deprecated(round, args=(scalar,)) + self.assert_deprecated(round, args=(scalar, 0)) + self.assert_deprecated(round, args=(scalar,), kwargs={'ndigits': 0}) + + def test_not_deprecated(self): + for scalar_type in self.not_deprecated_types: + scalar = scalar_type(0) + self.assert_not_deprecated(round, args=(scalar,)) + self.assert_not_deprecated(round, args=(scalar, 0)) + self.assert_not_deprecated(round, args=(scalar,), kwargs={'ndigits': 0}) + + +class FlatteningConcatenateUnsafeCast(_DeprecationTestCase): + # NumPy 1.20, 2020-09-03 + message = "concatenate with `axis=None` will use same-kind casting" + + def test_deprecated(self): + self.assert_deprecated(np.concatenate, + args=(([0.], [1.]),), + kwargs={'axis': None, 'out': np.empty(2, dtype=np.int64)}) + + def test_not_deprecated(self): + self.assert_not_deprecated(np.concatenate, + args=(([0.], [1.]),), + kwargs={'axis': None, 'out': np.empty(2, dtype=np.int64), + 'casting': "unsafe"}) + + with assert_raises(TypeError): + # Tests should notice if the deprecation warning is given first... + np.concatenate(([0.], [1.]), out=np.empty(2, dtype=np.int64), + casting="same_kind") + + +class TestCtypesGetter(_DeprecationTestCase): + ctypes = np.array([1]).ctypes + + @pytest.mark.parametrize("name", ["data", "shape", "strides", "_as_parameter_"]) + def test_not_deprecated(self, name: str) -> None: + self.assert_not_deprecated(lambda: getattr(self.ctypes, name)) + + +class TestPyIntConversion(_DeprecationTestCase): + message = r".*stop allowing conversion of out-of-bound.*" + + @pytest.mark.parametrize("dtype", np.typecodes["AllInteger"]) + def test_deprecated_scalar(self, dtype): + dtype = np.dtype(dtype) + info = np.iinfo(dtype) + + # Cover the most common creation paths (all end up in the + # same place): + def scalar(value, dtype): + dtype.type(value) + + def assign(value, dtype): + arr = np.array([0, 0, 0], dtype=dtype) + arr[2] = value + + def create(value, dtype): + np.array([value], dtype=dtype) + + for creation_func in [scalar, assign, create]: + try: + self.assert_deprecated( + lambda: creation_func(info.min - 1, dtype)) + except OverflowError: + pass # OverflowErrors always happened also before and are OK. + + try: + self.assert_deprecated( + lambda: creation_func(info.max + 1, dtype)) + except OverflowError: + pass # OverflowErrors always happened also before and are OK. + + +@pytest.mark.parametrize("name", ["str", "bytes", "object"]) +def test_future_scalar_attributes(name): + # FutureWarning added 2022-11-17, NumPy 1.24, + assert name not in dir(np) # we may want to not add them + with pytest.warns(FutureWarning, + match=f"In the future .*{name}"): + assert not hasattr(np, name) + + # Unfortunately, they are currently still valid via `np.dtype()` + np.dtype(name) + name in np._core.sctypeDict + + +# Ignore the above future attribute warning for this test. +@pytest.mark.filterwarnings("ignore:In the future:FutureWarning") +class TestRemovedGlobals: + # Removed 2023-01-12, NumPy 1.24.0 + # Not a deprecation, but the large error was added to aid those who missed + # the previous deprecation, and should be removed similarly to one + # (or faster). + @pytest.mark.parametrize("name", + ["object", "float", "complex", "str", "int"]) + def test_attributeerror_includes_info(self, name): + msg = f".*\n`np.{name}` was a deprecated alias for the builtin" + with pytest.raises(AttributeError, match=msg): + getattr(np, name) + + +class TestDeprecatedFinfo(_DeprecationTestCase): + # Deprecated in NumPy 1.25, 2023-01-16 + def test_deprecated_none(self): + self.assert_deprecated(np.finfo, args=(None,)) + + +class TestMathAlias(_DeprecationTestCase): + def test_deprecated_np_lib_math(self): + self.assert_deprecated(lambda: np.lib.math) + + +class TestLibImports(_DeprecationTestCase): + # Deprecated in Numpy 1.26.0, 2023-09 + def test_lib_functions_deprecation_call(self): + from numpy import row_stack + from numpy._core.numerictypes import maximum_sctype + from numpy.lib._npyio_impl import recfromcsv, recfromtxt + from numpy.lib._shape_base_impl import get_array_wrap + from numpy.lib._utils_impl import safe_eval + from numpy.lib.tests.test_io import TextIO + + self.assert_deprecated(lambda: safe_eval("None")) + + data_gen = lambda: TextIO('A,B\n0,1\n2,3') + kwargs = {'delimiter': ",", 'missing_values': "N/A", 'names': True} + self.assert_deprecated(lambda: recfromcsv(data_gen())) + self.assert_deprecated(lambda: recfromtxt(data_gen(), **kwargs)) + + self.assert_deprecated(get_array_wrap) + self.assert_deprecated(lambda: maximum_sctype(int)) + + self.assert_deprecated(lambda: row_stack([[]])) + self.assert_deprecated(lambda: np.chararray) + + +class TestDeprecatedDTypeAliases(_DeprecationTestCase): + + def _check_for_warning(self, func): + with pytest.warns(DeprecationWarning, + match="alias 'a' was deprecated in NumPy 2.0") as w: + func() + assert len(w) == 1 + + def test_a_dtype_alias(self): + for dtype in ["a", "a10"]: + f = lambda: np.dtype(dtype) + self._check_for_warning(f) + self.assert_deprecated(f) + f = lambda: np.array(["hello", "world"]).astype("a10") + self._check_for_warning(f) + self.assert_deprecated(f) + + +class TestDeprecatedArrayWrap(_DeprecationTestCase): + message = "__array_wrap__.*" + + def test_deprecated(self): + class Test1: + def __array__(self, dtype=None, copy=None): + return np.arange(4) + + def __array_wrap__(self, arr, context=None): + self.called = True + return 'pass context' + + class Test2(Test1): + def __array_wrap__(self, arr): + self.called = True + return 'pass' + + test1 = Test1() + test2 = Test2() + self.assert_deprecated(lambda: np.negative(test1)) + assert test1.called + self.assert_deprecated(lambda: np.negative(test2)) + assert test2.called + +class TestDeprecatedArrayAttributeSetting(_DeprecationTestCase): + message = "Setting the .*on a NumPy array has been deprecated.*" + + def test_deprecated_strides_set(self): + x = np.eye(2) + self.assert_deprecated(setattr, args=(x, 'strides', x.strides)) + + +class TestDeprecatedDTypeParenthesizedRepeatCount(_DeprecationTestCase): + message = "Passing in a parenthesized single number" + + @pytest.mark.parametrize("string", ["(2)i,", "(3)3S,", "f,(2)f"]) + def test_parenthesized_repeat_count(self, string): + self.assert_deprecated(np.dtype, args=(string,)) + + +class TestAddNewdocUFunc(_DeprecationTestCase): + # Deprecated in Numpy 2.2, 2024-11 + @pytest.mark.thread_unsafe( + reason="modifies and checks docstring which is global state" + ) + def test_deprecated(self): + doc = struct_ufunc.add_triplet.__doc__ + # gh-26718 + # This test mutates the C-level docstring pointer for add_triplet, + # which is permanent once set. Skip when re-running tests. + if doc is not None and "new docs" in doc: + pytest.skip("Cannot retest deprecation, otherwise ValueError: " + "Cannot change docstring of ufunc with non-NULL docstring") + self.assert_deprecated( + lambda: np._core.umath._add_newdoc_ufunc( + struct_ufunc.add_triplet, "new docs" + ) + ) + + +class TestDTypeAlignBool(_VisibleDeprecationTestCase): + # Deprecated in Numpy 2.4, 2025-07 + # NOTE: As you can see, finalizing this deprecation breaks some (very) old + # pickle files. This may be fine, but needs to be done with some care since + # it breaks all of them and not just some. + # (Maybe it should be a 3.0 or only after warning more explicitly around pickles.) + message = r"dtype\(\): align should be passed as Python or NumPy boolean but got " + + def test_deprecated(self): + # in particular integers should be rejected because one may think they mean + # alignment, or pass them accidentally as a subarray shape (meaning to pass + # a tuple). + self.assert_deprecated(lambda: np.dtype("f8", align=3)) + + @pytest.mark.parametrize("align", [True, False, np.True_, np.False_]) + def test_not_deprecated(self, align): + # if the user passes a bool, it is accepted. + self.assert_not_deprecated(lambda: np.dtype("f8", align=align)) + + +class TestFlatiterIndexing0dBoolIndex(_DeprecationTestCase): + # Deprecated in Numpy 2.4, 2025-07 + message = r"Indexing flat iterators with a 0-dimensional boolean index" + + def test_0d_boolean_index_deprecated(self): + arr = np.arange(3) + # 0d boolean indices on flat iterators are deprecated + self.assert_deprecated(lambda: arr.flat[True]) + + def test_0d_boolean_assign_index_deprecated(self): + arr = np.arange(3) + + def assign_to_index(): + arr.flat[True] = 10 + + self.assert_deprecated(assign_to_index) + + +class TestFlatiterIndexingFloatIndex(_DeprecationTestCase): + # Deprecated in NumPy 2.4, 2025-07 + message = r"Invalid non-array indices for iterator objects" + + def test_float_index_deprecated(self): + arr = np.arange(3) + # float indices on flat iterators are deprecated + self.assert_deprecated(lambda: arr.flat[[1.]]) + + def test_float_assign_index_deprecated(self): + arr = np.arange(3) + + def assign_to_index(): + arr.flat[[1.]] = 10 + + self.assert_deprecated(assign_to_index) + + +@pytest.mark.thread_unsafe( + reason="warning control utilities are deprecated due to being thread-unsafe" +) +class TestWarningUtilityDeprecations(_DeprecationTestCase): + # Deprecation in NumPy 2.4, 2025-08 + message = r"NumPy warning suppression and assertion utilities are deprecated." + + def test_assert_warns_deprecated(self): + def use_assert_warns(): + with np.testing.assert_warns(RuntimeWarning): + warnings.warn("foo", RuntimeWarning, stacklevel=1) + + self.assert_deprecated(use_assert_warns) + + def test_suppress_warnings_deprecated(self): + def use_suppress_warnings(): + with np.testing.suppress_warnings() as sup: + sup.filter(RuntimeWarning, 'invalid value encountered in divide') + + self.assert_deprecated(use_suppress_warnings) + + +class TestTooManyArgsExtremum(_DeprecationTestCase): + # Deprecated in Numpy 2.4, 2025-08, gh-27639 + message = "Passing more than 2 positional arguments to np.maximum and np.minimum " + + @pytest.mark.parametrize("ufunc", [np.minimum, np.maximum]) + def test_extremem_3_args(self, ufunc): + self.assert_deprecated(ufunc, args=(np.ones(1), np.zeros(1), np.empty(1))) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_dlpack.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_dlpack.py new file mode 100644 index 0000000000000000000000000000000000000000..e8198ac1823ec52a40736df52aa14ba1745f6d90 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_dlpack.py @@ -0,0 +1,190 @@ +import sys + +import pytest + +import numpy as np +from numpy.testing import IS_PYPY, assert_array_equal + + +def new_and_old_dlpack(): + yield np.arange(5) + + class OldDLPack(np.ndarray): + # Support only the "old" version + def __dlpack__(self, stream=None): + return super().__dlpack__(stream=None) + + yield np.arange(5).view(OldDLPack) + + +class TestDLPack: + @pytest.mark.skipif(IS_PYPY, reason="PyPy can't get refcounts.") + @pytest.mark.parametrize("max_version", [(0, 0), None, (1, 0), (100, 3)]) + def test_dunder_dlpack_refcount(self, max_version): + x = np.arange(5) + y = x.__dlpack__(max_version=max_version) + startcount = sys.getrefcount(x) + del y + assert startcount - sys.getrefcount(x) == 1 + + def test_dunder_dlpack_stream(self): + x = np.arange(5) + x.__dlpack__(stream=None) + + with pytest.raises(RuntimeError): + x.__dlpack__(stream=1) + + def test_dunder_dlpack_copy(self): + # Checks the argument parsing of __dlpack__ explicitly. + # Honoring the flag is tested in the from_dlpack round-tripping test. + x = np.arange(5) + x.__dlpack__(copy=True) + x.__dlpack__(copy=None) + x.__dlpack__(copy=False) + + with pytest.raises(ValueError): + # NOTE: The copy converter should be stricter, but not just here. + x.__dlpack__(copy=np.array([1, 2, 3])) + + def test_strides_not_multiple_of_itemsize(self): + dt = np.dtype([('int', np.int32), ('char', np.int8)]) + y = np.zeros((5,), dtype=dt) + z = y['int'] + + with pytest.raises(BufferError): + np.from_dlpack(z) + + @pytest.mark.skipif(IS_PYPY, reason="PyPy can't get refcounts.") + @pytest.mark.parametrize("arr", new_and_old_dlpack()) + def test_from_dlpack_refcount(self, arr): + arr = arr.copy() + y = np.from_dlpack(arr) + startcount = sys.getrefcount(arr) + del y + assert startcount - sys.getrefcount(arr) == 1 + + @pytest.mark.parametrize("dtype", [ + np.bool, + np.int8, np.int16, np.int32, np.int64, + np.uint8, np.uint16, np.uint32, np.uint64, + np.float16, np.float32, np.float64, + np.complex64, np.complex128 + ]) + @pytest.mark.parametrize("arr", new_and_old_dlpack()) + def test_dtype_passthrough(self, arr, dtype): + x = arr.astype(dtype) + y = np.from_dlpack(x) + + assert y.dtype == x.dtype + assert_array_equal(x, y) + + def test_invalid_dtype(self): + x = np.asarray(np.datetime64('2021-05-27')) + + with pytest.raises(BufferError): + np.from_dlpack(x) + + def test_invalid_byte_swapping(self): + dt = np.dtype('=i8').newbyteorder() + x = np.arange(5, dtype=dt) + + with pytest.raises(BufferError): + np.from_dlpack(x) + + def test_non_contiguous(self): + x = np.arange(25).reshape((5, 5)) + + y1 = x[0] + assert_array_equal(y1, np.from_dlpack(y1)) + + y2 = x[:, 0] + assert_array_equal(y2, np.from_dlpack(y2)) + + y3 = x[1, :] + assert_array_equal(y3, np.from_dlpack(y3)) + + y4 = x[1] + assert_array_equal(y4, np.from_dlpack(y4)) + + y5 = np.diagonal(x).copy() + assert_array_equal(y5, np.from_dlpack(y5)) + + @pytest.mark.parametrize("ndim", range(33)) + def test_higher_dims(self, ndim): + shape = (1,) * ndim + x = np.zeros(shape, dtype=np.float64) + + assert shape == np.from_dlpack(x).shape + + def test_dlpack_device(self): + x = np.arange(5) + assert x.__dlpack_device__() == (1, 0) + y = np.from_dlpack(x) + assert y.__dlpack_device__() == (1, 0) + z = y[::2] + assert z.__dlpack_device__() == (1, 0) + + def dlpack_deleter_exception(self, max_version): + x = np.arange(5) + _ = x.__dlpack__(max_version=max_version) + raise RuntimeError + + @pytest.mark.parametrize("max_version", [None, (1, 0)]) + def test_dlpack_destructor_exception(self, max_version): + with pytest.raises(RuntimeError): + self.dlpack_deleter_exception(max_version=max_version) + + def test_readonly(self): + x = np.arange(5) + x.flags.writeable = False + # Raises without max_version + with pytest.raises(BufferError): + x.__dlpack__() + + # But works fine if we try with version + y = np.from_dlpack(x) + assert not y.flags.writeable + + def test_writeable(self): + x_new, x_old = new_and_old_dlpack() + + # new dlpacks respect writeability + y = np.from_dlpack(x_new) + assert y.flags.writeable + + # old dlpacks are not writeable for backwards compatibility + y = np.from_dlpack(x_old) + assert not y.flags.writeable + + def test_ndim0(self): + x = np.array(1.0) + y = np.from_dlpack(x) + assert_array_equal(x, y) + + def test_size1dims_arrays(self): + x = np.ndarray(dtype='f8', shape=(10, 5, 1), strides=(8, 80, 4), + buffer=np.ones(1000, dtype=np.uint8), order='F') + y = np.from_dlpack(x) + assert_array_equal(x, y) + + def test_copy(self): + x = np.arange(5) + + y = np.from_dlpack(x) + assert np.may_share_memory(x, y) + y = np.from_dlpack(x, copy=False) + assert np.may_share_memory(x, y) + y = np.from_dlpack(x, copy=True) + assert not np.may_share_memory(x, y) + + def test_device(self): + x = np.arange(5) + # requesting (1, 0), i.e. CPU device works in both calls: + x.__dlpack__(dl_device=(1, 0)) + np.from_dlpack(x, device="cpu") + np.from_dlpack(x, device=None) + + with pytest.raises(BufferError): + x.__dlpack__(dl_device=(10, 0)) + with pytest.raises(ValueError): + np.from_dlpack(x, device="gpu") diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_dtype.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_dtype.py new file mode 100644 index 0000000000000000000000000000000000000000..157d3e4c97d1105a1c8a332c0c6004c654d11e50 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_dtype.py @@ -0,0 +1,2110 @@ +import contextlib +import ctypes +import gc +import inspect +import operator +import pickle +import sys +import types +from itertools import permutations +from typing import Any + +import hypothesis +import pytest +from hypothesis.extra import numpy as hynp + +import numpy as np +import numpy.dtypes +from numpy._core._multiarray_tests import create_custom_field_dtype +from numpy._core._rational_tests import rational +from numpy.testing import ( + HAS_REFCOUNT, + IS_64BIT, + IS_PYPY, + IS_PYSTON, + IS_WASM, + assert_, + assert_array_equal, + assert_equal, + assert_raises, +) + + +def assert_dtype_equal(a, b): + assert_equal(a, b) + assert_equal(hash(a), hash(b), + "two equivalent types do not hash to the same value !") + +def assert_dtype_not_equal(a, b): + assert_(a != b) + assert_(hash(a) != hash(b), + "two different types hash to the same value !") + +class TestBuiltin: + @pytest.mark.parametrize('t', [int, float, complex, np.int32, str, object]) + def test_run(self, t): + """Only test hash runs at all.""" + dt = np.dtype(t) + hash(dt) + + @pytest.mark.parametrize('t', [int, float]) + def test_dtype(self, t): + # Make sure equivalent byte order char hash the same (e.g. < and = on + # little endian) + dt = np.dtype(t) + dt2 = dt.newbyteorder("<") + dt3 = dt.newbyteorder(">") + if dt == dt2: + assert_(dt.byteorder != dt2.byteorder, "bogus test") + assert_dtype_equal(dt, dt2) + else: + assert_(dt.byteorder != dt3.byteorder, "bogus test") + assert_dtype_equal(dt, dt3) + + def test_equivalent_dtype_hashing(self): + # Make sure equivalent dtypes with different type num hash equal + uintp = np.dtype(np.uintp) + if uintp.itemsize == 4: + left = uintp + right = np.dtype(np.uint32) + else: + left = uintp + right = np.dtype(np.ulonglong) + assert_(left == right) + assert_(hash(left) == hash(right)) + + def test_invalid_types(self): + # Make sure invalid type strings raise an error + + assert_raises(TypeError, np.dtype, 'O3') + assert_raises(TypeError, np.dtype, 'O5') + assert_raises(TypeError, np.dtype, 'O7') + assert_raises(TypeError, np.dtype, 'b3') + assert_raises(TypeError, np.dtype, 'h4') + assert_raises(TypeError, np.dtype, 'I5') + assert_raises(TypeError, np.dtype, 'e3') + assert_raises(TypeError, np.dtype, 'f5') + + if np.dtype('g').itemsize == 8 or np.dtype('g').itemsize == 16: + assert_raises(TypeError, np.dtype, 'g12') + elif np.dtype('g').itemsize == 12: + assert_raises(TypeError, np.dtype, 'g16') + + if np.dtype('l').itemsize == 8: + assert_raises(TypeError, np.dtype, 'l4') + assert_raises(TypeError, np.dtype, 'L4') + else: + assert_raises(TypeError, np.dtype, 'l8') + assert_raises(TypeError, np.dtype, 'L8') + + if np.dtype('q').itemsize == 8: + assert_raises(TypeError, np.dtype, 'q4') + assert_raises(TypeError, np.dtype, 'Q4') + else: + assert_raises(TypeError, np.dtype, 'q8') + assert_raises(TypeError, np.dtype, 'Q8') + + # Make sure negative-sized dtype raises an error + assert_raises(TypeError, np.dtype, 'S-1') + assert_raises(TypeError, np.dtype, 'U-1') + assert_raises(TypeError, np.dtype, 'V-1') + + def test_richcompare_invalid_dtype_equality(self): + # Make sure objects that cannot be converted to valid + # dtypes results in False/True when compared to valid dtypes. + # Here 7 cannot be converted to dtype. No exceptions should be raised + + assert not np.dtype(np.int32) == 7, "dtype richcompare failed for ==" + assert np.dtype(np.int32) != 7, "dtype richcompare failed for !=" + + @pytest.mark.parametrize( + 'operation', + [operator.le, operator.lt, operator.ge, operator.gt]) + def test_richcompare_invalid_dtype_comparison(self, operation): + # Make sure TypeError is raised for comparison operators + # for invalid dtypes. Here 7 is an invalid dtype. + + with pytest.raises(TypeError): + operation(np.dtype(np.int32), 7) + + @pytest.mark.parametrize("dtype", + ['Bool', 'Bytes0', 'Complex32', 'Complex64', + 'Datetime64', 'Float16', 'Float32', 'Float64', + 'Int8', 'Int16', 'Int32', 'Int64', + 'Object0', 'Str0', 'Timedelta64', + 'UInt8', 'UInt16', 'Uint32', 'UInt32', + 'Uint64', 'UInt64', 'Void0', + "Float128", "Complex128"]) + def test_numeric_style_types_are_invalid(self, dtype): + with assert_raises(TypeError): + np.dtype(dtype) + + def test_expired_dtypes_with_bad_bytesize(self): + match: str = r".*removed in NumPy 2.0.*" + with pytest.raises(TypeError, match=match): + np.dtype("int0") + with pytest.raises(TypeError, match=match): + np.dtype("uint0") + with pytest.raises(TypeError, match=match): + np.dtype("bool8") + with pytest.raises(TypeError, match=match): + np.dtype("bytes0") + with pytest.raises(TypeError, match=match): + np.dtype("str0") + with pytest.raises(TypeError, match=match): + np.dtype("object0") + with pytest.raises(TypeError, match=match): + np.dtype("void0") + + @pytest.mark.parametrize( + 'value', + ['m8', 'M8', 'datetime64', 'timedelta64', + 'i4, (2,3)f8, f4', 'S3, 3u8, (3,4)S10', + '>f', '= (3, 12), + reason="Python 3.12 has immortal refcounts, this test will no longer " + "work. See gh-23986" +) +@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") +class TestStructuredObjectRefcounting: + """These tests cover various uses of complicated structured types which + include objects and thus require reference counting. + """ + @pytest.mark.parametrize(['dt', 'pat', 'count', 'singleton'], + iter_struct_object_dtypes()) + @pytest.mark.parametrize(["creation_func", "creation_obj"], [ + pytest.param(np.empty, None, + # None is probably used for too many things + marks=pytest.mark.skip("unreliable due to python's behaviour")), + (np.ones, 1), + (np.zeros, 0)]) + def test_structured_object_create_delete(self, dt, pat, count, singleton, + creation_func, creation_obj): + """Structured object reference counting in creation and deletion""" + # The test assumes that 0, 1, and None are singletons. + gc.collect() + before = sys.getrefcount(creation_obj) + arr = creation_func(3, dt) + + now = sys.getrefcount(creation_obj) + assert now - before == count * 3 + del arr + now = sys.getrefcount(creation_obj) + assert now == before + + @pytest.mark.parametrize(['dt', 'pat', 'count', 'singleton'], + iter_struct_object_dtypes()) + def test_structured_object_item_setting(self, dt, pat, count, singleton): + """Structured object reference counting for simple item setting""" + one = 1 + + gc.collect() + before = sys.getrefcount(singleton) + arr = np.array([pat] * 3, dt) + assert sys.getrefcount(singleton) - before == count * 3 + # Fill with `1` and check that it was replaced correctly: + before2 = sys.getrefcount(one) + arr[...] = one + after2 = sys.getrefcount(one) + assert after2 - before2 == count * 3 + del arr + gc.collect() + assert sys.getrefcount(one) == before2 + assert sys.getrefcount(singleton) == before + + @pytest.mark.parametrize(['dt', 'pat', 'count', 'singleton'], + iter_struct_object_dtypes()) + @pytest.mark.parametrize( + ['shape', 'index', 'items_changed'], + [((3,), ([0, 2],), 2), + ((3, 2), ([0, 2], slice(None)), 4), + ((3, 2), ([0, 2], [1]), 2), + ((3,), ([True, False, True]), 2)]) + def test_structured_object_indexing(self, shape, index, items_changed, + dt, pat, count, singleton): + """Structured object reference counting for advanced indexing.""" + # Use two small negative values (should be singletons, but less likely + # to run into race-conditions). This failed in some threaded envs + # When using 0 and 1. If it fails again, should remove all explicit + # checks, and rely on `pytest-leaks` reference count checker only. + val0 = -4 + val1 = -5 + + arr = np.full(shape, val0, dt) + + gc.collect() + before_val0 = sys.getrefcount(val0) + before_val1 = sys.getrefcount(val1) + # Test item getting: + part = arr[index] + after_val0 = sys.getrefcount(val0) + assert after_val0 - before_val0 == count * items_changed + del part + # Test item setting: + arr[index] = val1 + gc.collect() + after_val0 = sys.getrefcount(val0) + after_val1 = sys.getrefcount(val1) + assert before_val0 - after_val0 == count * items_changed + assert after_val1 - before_val1 == count * items_changed + + @pytest.mark.parametrize(['dt', 'pat', 'count', 'singleton'], + iter_struct_object_dtypes()) + def test_structured_object_take_and_repeat(self, dt, pat, count, singleton): + """Structured object reference counting for specialized functions. + The older functions such as take and repeat use different code paths + then item setting (when writing this). + """ + indices = [0, 1] + + arr = np.array([pat] * 3, dt) + gc.collect() + before = sys.getrefcount(singleton) + res = arr.take(indices) + after = sys.getrefcount(singleton) + assert after - before == count * 2 + new = res.repeat(10) + gc.collect() + after_repeat = sys.getrefcount(singleton) + assert after_repeat - after == count * 2 * 10 + + +class TestStructuredDtypeSparseFields: + """Tests subarray fields which contain sparse dtypes so that + not all memory is used by the dtype work. Such dtype's should + leave the underlying memory unchanged. + """ + dtype = np.dtype([('a', {'names': ['aa', 'ab'], 'formats': ['f', 'f'], + 'offsets': [0, 4]}, (2, 3))]) + sparse_dtype = np.dtype([('a', {'names': ['ab'], 'formats': ['f'], + 'offsets': [4]}, (2, 3))]) + + def test_sparse_field_assignment(self): + arr = np.zeros(3, self.dtype) + sparse_arr = arr.view(self.sparse_dtype) + + sparse_arr[...] = np.finfo(np.float32).max + # dtype is reduced when accessing the field, so shape is (3, 2, 3): + assert_array_equal(arr["a"]["aa"], np.zeros((3, 2, 3))) + + def test_sparse_field_assignment_fancy(self): + # Fancy assignment goes to the copyswap function for complex types: + arr = np.zeros(3, self.dtype) + sparse_arr = arr.view(self.sparse_dtype) + + sparse_arr[[0, 1, 2]] = np.finfo(np.float32).max + # dtype is reduced when accessing the field, so shape is (3, 2, 3): + assert_array_equal(arr["a"]["aa"], np.zeros((3, 2, 3))) + + +class TestMonsterType: + """Test deeply nested subtypes.""" + + def test1(self): + simple1 = np.dtype({'names': ['r', 'b'], 'formats': ['u1', 'u1'], + 'titles': ['Red pixel', 'Blue pixel']}) + a = np.dtype([('yo', int), ('ye', simple1), + ('yi', np.dtype((int, (3, 2))))]) + b = np.dtype([('yo', int), ('ye', simple1), + ('yi', np.dtype((int, (3, 2))))]) + assert_dtype_equal(a, b) + + c = np.dtype([('yo', int), ('ye', simple1), + ('yi', np.dtype((a, (3, 2))))]) + d = np.dtype([('yo', int), ('ye', simple1), + ('yi', np.dtype((a, (3, 2))))]) + assert_dtype_equal(c, d) + + @pytest.mark.skipif(IS_PYSTON, reason="Pyston disables recursion checking") + @pytest.mark.skipif(IS_WASM, reason="Pyodide/WASM has limited stack size") + def test_list_recursion(self): + l = [] + l.append(('f', l)) + with pytest.raises(RecursionError): + np.dtype(l) + + @pytest.mark.skipif(IS_PYSTON, reason="Pyston disables recursion checking") + @pytest.mark.skipif(IS_WASM, reason="Pyodide/WASM has limited stack size") + def test_tuple_recursion(self): + d = np.int32 + for i in range(100000): + d = (d, (1,)) + # depending on OS and Python version, this might succeed + # see gh-30370 and cpython issue #142253 + with contextlib.suppress(RecursionError): + np.dtype(d) + + @pytest.mark.skipif(IS_PYSTON, reason="Pyston disables recursion checking") + @pytest.mark.skipif(IS_WASM, reason="Pyodide/WASM has limited stack size") + def test_dict_recursion(self): + d = {"names": ['self'], "formats": [None], "offsets": [0]} + d['formats'][0] = d + with pytest.raises(RecursionError): + np.dtype(d) + + +class TestMetadata: + def test_no_metadata(self): + d = np.dtype(int) + assert_(d.metadata is None) + + def test_metadata_takes_dict(self): + d = np.dtype(int, metadata={'datum': 1}) + assert_(d.metadata == {'datum': 1}) + + def test_metadata_rejects_nondict(self): + assert_raises(TypeError, np.dtype, int, metadata='datum') + assert_raises(TypeError, np.dtype, int, metadata=1) + assert_raises(TypeError, np.dtype, int, metadata=None) + + def test_nested_metadata(self): + d = np.dtype([('a', np.dtype(int, metadata={'datum': 1}))]) + assert_(d['a'].metadata == {'datum': 1}) + + def test_base_metadata_copied(self): + d = np.dtype((np.void, np.dtype('i4,i4', metadata={'datum': 1}))) + assert_(d.metadata == {'datum': 1}) + +class TestString: + def test_complex_dtype_str(self): + dt = np.dtype([('top', [('tiles', ('>f4', (64, 64)), (1,)), + ('rtile', '>f4', (64, 36))], (3,)), + ('bottom', [('bleft', ('>f4', (8, 64)), (1,)), + ('bright', '>f4', (8, 36))])]) + assert_equal(str(dt), + "[('top', [('tiles', ('>f4', (64, 64)), (1,)), " + "('rtile', '>f4', (64, 36))], (3,)), " + "('bottom', [('bleft', ('>f4', (8, 64)), (1,)), " + "('bright', '>f4', (8, 36))])]") + + # If the sticky aligned flag is set to True, it makes the + # str() function use a dict representation with an 'aligned' flag + dt = np.dtype([('top', [('tiles', ('>f4', (64, 64)), (1,)), + ('rtile', '>f4', (64, 36))], + (3,)), + ('bottom', [('bleft', ('>f4', (8, 64)), (1,)), + ('bright', '>f4', (8, 36))])], + align=True) + assert_equal(str(dt), + "{'names': ['top', 'bottom']," + " 'formats': [([('tiles', ('>f4', (64, 64)), (1,)), " + "('rtile', '>f4', (64, 36))], (3,)), " + "[('bleft', ('>f4', (8, 64)), (1,)), " + "('bright', '>f4', (8, 36))]]," + " 'offsets': [0, 76800]," + " 'itemsize': 80000," + " 'aligned': True}") + with np.printoptions(legacy='1.21'): + assert_equal(str(dt), + "{'names':['top','bottom'], " + "'formats':[([('tiles', ('>f4', (64, 64)), (1,)), " + "('rtile', '>f4', (64, 36))], (3,))," + "[('bleft', ('>f4', (8, 64)), (1,)), " + "('bright', '>f4', (8, 36))]], " + "'offsets':[0,76800], " + "'itemsize':80000, " + "'aligned':True}") + assert_equal(np.dtype(eval(str(dt))), dt) + + dt = np.dtype({'names': ['r', 'g', 'b'], 'formats': ['u1', 'u1', 'u1'], + 'offsets': [0, 1, 2], + 'titles': ['Red pixel', 'Green pixel', 'Blue pixel']}) + assert_equal(str(dt), + "[(('Red pixel', 'r'), 'u1'), " + "(('Green pixel', 'g'), 'u1'), " + "(('Blue pixel', 'b'), 'u1')]") + + dt = np.dtype({'names': ['rgba', 'r', 'g', 'b'], + 'formats': ['f4', (64, 64)), (1,)), + ('rtile', '>f4', (64, 36))], (3,)), + ('bottom', [('bleft', ('>f4', (8, 64)), (1,)), + ('bright', '>f4', (8, 36))])]) + assert_equal(repr(dt), + "dtype([('top', [('tiles', ('>f4', (64, 64)), (1,)), " + "('rtile', '>f4', (64, 36))], (3,)), " + "('bottom', [('bleft', ('>f4', (8, 64)), (1,)), " + "('bright', '>f4', (8, 36))])])") + + dt = np.dtype({'names': ['r', 'g', 'b'], 'formats': ['u1', 'u1', 'u1'], + 'offsets': [0, 1, 2], + 'titles': ['Red pixel', 'Green pixel', 'Blue pixel']}, + align=True) + assert_equal(repr(dt), + "dtype([(('Red pixel', 'r'), 'u1'), " + "(('Green pixel', 'g'), 'u1'), " + "(('Blue pixel', 'b'), 'u1')], align=True)") + + def test_repr_structured_not_packed(self): + dt = np.dtype({'names': ['rgba', 'r', 'g', 'b'], + 'formats': ['i4") + assert np.result_type(dt).isnative + assert np.result_type(dt).num == dt.num + + # dtype with empty space: + struct_dt = np.dtype(">i4,i1,f4', (2, 1)), ('b', 'u4')]) + self.check(BigEndStruct, expected) + + def test_little_endian_structure_packed(self): + class LittleEndStruct(ctypes.LittleEndianStructure): + _fields_ = [ + ('one', ctypes.c_uint8), + ('two', ctypes.c_uint32) + ] + _pack_ = 1 + expected = np.dtype([('one', 'u1'), ('two', 'B'), + ('b', '>H') + ], align=True) + self.check(PaddedStruct, expected) + + def test_simple_endian_types(self): + self.check(ctypes.c_uint16.__ctype_le__, np.dtype('u2')) + self.check(ctypes.c_uint8.__ctype_le__, np.dtype('u1')) + self.check(ctypes.c_uint8.__ctype_be__, np.dtype('u1')) + + all_types = set(np.typecodes['All']) + all_pairs = permutations(all_types, 2) + + @pytest.mark.parametrize("pair", all_pairs) + def test_pairs(self, pair): + """ + Check that np.dtype('x,y') matches [np.dtype('x'), np.dtype('y')] + Example: np.dtype('d,I') -> dtype([('f0', ' None: + alias = np.dtype[Any] + assert isinstance(alias, types.GenericAlias) + assert alias.__origin__ is np.dtype + + @pytest.mark.parametrize("code", np.typecodes["All"]) + def test_dtype_subclass(self, code: str) -> None: + cls = type(np.dtype(code)) + alias = cls[Any] + assert isinstance(alias, types.GenericAlias) + assert alias.__origin__ is cls + + @pytest.mark.parametrize("arg_len", range(4)) + def test_subscript_tuple(self, arg_len: int) -> None: + arg_tup = (Any,) * arg_len + if arg_len == 1: + assert np.dtype[arg_tup] + else: + with pytest.raises(TypeError): + np.dtype[arg_tup] + + def test_subscript_scalar(self) -> None: + assert np.dtype[Any] + + +def test_result_type_integers_and_unitless_timedelta64(): + # Regression test for gh-20077. The following call of `result_type` + # would cause a seg. fault. + td = np.timedelta64(4) + result = np.result_type(0, td) + assert_dtype_equal(result, td.dtype) + + +def test_creating_dtype_with_dtype_class_errors(): + # Regression test for #25031, calling `np.dtype` with itself segfaulted. + with pytest.raises(TypeError, match="Cannot convert np.dtype into a"): + np.array(np.ones(10), dtype=np.dtype) + + +@pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO") +@pytest.mark.skipif(IS_PYPY, reason="PyPy does not modify tp_doc") +class TestDTypeSignatures: + def test_signature_dtype(self): + sig = inspect.signature(np.dtype) + + assert len(sig.parameters) == 4 + + assert "dtype" in sig.parameters + assert sig.parameters["dtype"].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD + assert sig.parameters["dtype"].default is inspect.Parameter.empty + + assert "align" in sig.parameters + assert sig.parameters["align"].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD + assert sig.parameters["align"].default is False + + assert "copy" in sig.parameters + assert sig.parameters["copy"].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD + assert sig.parameters["copy"].default is False + + # the optional `metadata` parameter has no default, so `**kwargs` must be used + assert "kwargs" in sig.parameters + assert sig.parameters["kwargs"].kind is inspect.Parameter.VAR_KEYWORD + assert sig.parameters["kwargs"].default is inspect.Parameter.empty + + def test_signature_dtype_newbyteorder(self): + sig = inspect.signature(np.dtype.newbyteorder) + + assert len(sig.parameters) == 2 + + assert "self" in sig.parameters + assert sig.parameters["self"].kind is inspect.Parameter.POSITIONAL_ONLY + assert sig.parameters["self"].default is inspect.Parameter.empty + + assert "new_order" in sig.parameters + assert sig.parameters["new_order"].kind is inspect.Parameter.POSITIONAL_ONLY + assert sig.parameters["new_order"].default == "S" + + @pytest.mark.parametrize("typename", np.dtypes.__all__) + def test_signature_dtypes_classes(self, typename: str): + dtype_type = getattr(np.dtypes, typename) + sig = inspect.signature(dtype_type) + + match typename.lower().removesuffix("dtype"): + case "bytes" | "str": + params_expect = {"size"} + case "void": + params_expect = {"length"} + case "datetime64" | "timedelta64": + params_expect = {"unit"} + case "string": + # `na_object` cannot be used in the text signature because of its + # `np._NoValue` default, which isn't supported by `inspect.signature`, + # so `**kwargs` is used instead. + params_expect = {"coerce", "kwargs"} + case _: + params_expect = set() + + params_actual = set(sig.parameters) + assert params_actual == params_expect diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_einsum.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_einsum.py new file mode 100644 index 0000000000000000000000000000000000000000..375ef03c1dd7417dbc9710b8317d746b1fc94617 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_einsum.py @@ -0,0 +1,1351 @@ +import itertools +import warnings + +import pytest + +import numpy as np +from numpy.testing import ( + assert_, + assert_allclose, + assert_almost_equal, + assert_array_equal, + assert_equal, + assert_raises, + assert_raises_regex, +) + +# Setup for optimize einsum +chars = 'abcdefghij' +sizes = np.array([2, 3, 4, 5, 4, 3, 2, 6, 5, 4, 3]) +global_size_dict = dict(zip(chars, sizes)) + + +class TestEinsum: + @pytest.mark.parametrize("do_opt", [True, False]) + @pytest.mark.parametrize("einsum_fn", [np.einsum, np.einsum_path]) + def test_einsum_errors(self, do_opt, einsum_fn): + # Need enough arguments + assert_raises(ValueError, einsum_fn, optimize=do_opt) + assert_raises(ValueError, einsum_fn, "", optimize=do_opt) + + # subscripts must be a string + assert_raises(TypeError, einsum_fn, 0, 0, optimize=do_opt) + + # issue 4528 revealed a segfault with this call + assert_raises(TypeError, einsum_fn, *(None,) * 63, optimize=do_opt) + + # number of operands must match count in subscripts string + assert_raises(ValueError, einsum_fn, "", 0, 0, optimize=do_opt) + assert_raises(ValueError, einsum_fn, ",", 0, [0], [0], + optimize=do_opt) + assert_raises(ValueError, einsum_fn, ",", [0], optimize=do_opt) + + # can't have more subscripts than dimensions in the operand + assert_raises(ValueError, einsum_fn, "i", 0, optimize=do_opt) + assert_raises(ValueError, einsum_fn, "ij", [0, 0], optimize=do_opt) + assert_raises(ValueError, einsum_fn, "...i", 0, optimize=do_opt) + assert_raises(ValueError, einsum_fn, "i...j", [0, 0], optimize=do_opt) + assert_raises(ValueError, einsum_fn, "i...", 0, optimize=do_opt) + assert_raises(ValueError, einsum_fn, "ij...", [0, 0], optimize=do_opt) + + # invalid ellipsis + assert_raises(ValueError, einsum_fn, "i..", [0, 0], optimize=do_opt) + assert_raises(ValueError, einsum_fn, ".i...", [0, 0], optimize=do_opt) + assert_raises(ValueError, einsum_fn, "j->..j", [0, 0], optimize=do_opt) + assert_raises(ValueError, einsum_fn, "j->.j...", [0, 0], + optimize=do_opt) + + # invalid subscript character + assert_raises(ValueError, einsum_fn, "i%...", [0, 0], optimize=do_opt) + assert_raises(ValueError, einsum_fn, "...j$", [0, 0], optimize=do_opt) + assert_raises(ValueError, einsum_fn, "i->&", [0, 0], optimize=do_opt) + + # output subscripts must appear in input + assert_raises(ValueError, einsum_fn, "i->ij", [0, 0], optimize=do_opt) + + # output subscripts may only be specified once + assert_raises(ValueError, einsum_fn, "ij->jij", [[0, 0], [0, 0]], + optimize=do_opt) + + # dimensions must match when being collapsed + assert_raises(ValueError, einsum_fn, "ii", + np.arange(6).reshape(2, 3), optimize=do_opt) + assert_raises(ValueError, einsum_fn, "ii->i", + np.arange(6).reshape(2, 3), optimize=do_opt) + + with assert_raises_regex(ValueError, "'b'"): + # gh-11221 - 'c' erroneously appeared in the error message + a = np.ones((3, 3, 4, 5, 6)) + b = np.ones((3, 4, 5)) + einsum_fn('aabcb,abc', a, b) + + with pytest.raises(ValueError): + a = np.arange(3) + # einsum_path does not yet accept kwarg 'casting' + np.einsum('ij->j', [a, a], casting='same_value') + + def test_einsum_sorting_behavior(self): + # Case 1: 26 dimensions (all lowercase indices) + n1 = 26 + x1 = np.random.random((1,) * n1) + path1 = np.einsum_path(x1, range(n1))[1] # Get einsum path details + output_indices1 = path1.split("->")[-1].strip() # Extract output indices + # Assert indices are only uppercase letters and sorted correctly + assert all(c.isupper() for c in output_indices1), ( + "Output indices for n=26 should use uppercase letters only: " + f"{output_indices1}" + ) + assert_equal( + output_indices1, + ''.join(sorted(output_indices1)), + err_msg=( + "Output indices for n=26 are not lexicographically sorted: " + f"{output_indices1}" + ) + ) + + # Case 2: 27 dimensions (includes uppercase indices) + n2 = 27 + x2 = np.random.random((1,) * n2) + path2 = np.einsum_path(x2, range(n2))[1] + output_indices2 = path2.split("->")[-1].strip() + # Assert indices include both uppercase and lowercase letters + assert any(c.islower() for c in output_indices2), ( + "Output indices for n=27 should include uppercase letters: " + f"{output_indices2}" + ) + # Assert output indices are sorted uppercase before lowercase + assert_equal( + output_indices2, + ''.join(sorted(output_indices2)), + err_msg=( + "Output indices for n=27 are not lexicographically sorted: " + f"{output_indices2}" + ) + ) + + # Additional Check: Ensure dimensions correspond correctly to indices + # Generate expected mapping of dimensions to indices + expected_indices = [ + chr(i + ord('A')) if i < 26 else chr(i - 26 + ord('a')) + for i in range(n2) + ] + assert_equal( + output_indices2, + ''.join(expected_indices), + err_msg=( + "Output indices do not map to the correct dimensions. Expected: " + f"{''.join(expected_indices)}, Got: {output_indices2}" + ) + ) + + @pytest.mark.parametrize("do_opt", [True, False]) + def test_einsum_specific_errors(self, do_opt): + # out parameter must be an array + assert_raises(TypeError, np.einsum, "", 0, out='test', + optimize=do_opt) + + # order parameter must be a valid order + assert_raises(ValueError, np.einsum, "", 0, order='W', + optimize=do_opt) + + # casting parameter must be a valid casting + assert_raises(ValueError, np.einsum, "", 0, casting='blah', + optimize=do_opt) + + # dtype parameter must be a valid dtype + assert_raises(TypeError, np.einsum, "", 0, dtype='bad_data_type', + optimize=do_opt) + + # other keyword arguments are rejected + assert_raises(TypeError, np.einsum, "", 0, bad_arg=0, optimize=do_opt) + + # broadcasting to new dimensions must be enabled explicitly + assert_raises(ValueError, np.einsum, "i", np.arange(6).reshape(2, 3), + optimize=do_opt) + assert_raises(ValueError, np.einsum, "i->i", [[0, 1], [0, 1]], + out=np.arange(4).reshape(2, 2), optimize=do_opt) + + # Check order kwarg, asanyarray allows 1d to pass through + assert_raises(ValueError, np.einsum, "i->i", + np.arange(6).reshape(-1, 1), optimize=do_opt, order='d') + + def test_einsum_object_errors(self): + # Exceptions created by object arithmetic should + # successfully propagate + + class CustomException(Exception): + pass + + class DestructoBox: + + def __init__(self, value, destruct): + self._val = value + self._destruct = destruct + + def __add__(self, other): + tmp = self._val + other._val + if tmp >= self._destruct: + raise CustomException + else: + self._val = tmp + return self + + def __radd__(self, other): + if other == 0: + return self + else: + return self.__add__(other) + + def __mul__(self, other): + tmp = self._val * other._val + if tmp >= self._destruct: + raise CustomException + else: + self._val = tmp + return self + + def __rmul__(self, other): + if other == 0: + return self + else: + return self.__mul__(other) + + a = np.array([DestructoBox(i, 5) for i in range(1, 10)], + dtype='object').reshape(3, 3) + + # raised from unbuffered_loop_nop1_ndim2 + assert_raises(CustomException, np.einsum, "ij->i", a) + + # raised from unbuffered_loop_nop1_ndim3 + b = np.array([DestructoBox(i, 100) for i in range(27)], + dtype='object').reshape(3, 3, 3) + assert_raises(CustomException, np.einsum, "i...k->...", b) + + # raised from unbuffered_loop_nop2_ndim2 + b = np.array([DestructoBox(i, 55) for i in range(1, 4)], + dtype='object') + assert_raises(CustomException, np.einsum, "ij, j", a, b) + + # raised from unbuffered_loop_nop2_ndim3 + assert_raises(CustomException, np.einsum, "ij, jh", a, a) + + # raised from PyArray_EinsteinSum + assert_raises(CustomException, np.einsum, "ij->", a) + + def test_einsum_views(self): + # pass-through + for do_opt in [True, False]: + a = np.arange(6).reshape((2, 3)) + + b = np.einsum("...", a, optimize=do_opt) + assert_(b.base is a.base) + + b = np.einsum(a, [Ellipsis], optimize=do_opt) + assert_(b.base is a.base) + + b = np.einsum("ij", a, optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, a) + + b = np.einsum(a, [0, 1], optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, a) + + # output is writeable whenever input is writeable + b = np.einsum("...", a, optimize=do_opt) + assert_(b.flags['WRITEABLE']) + a.flags['WRITEABLE'] = False + b = np.einsum("...", a, optimize=do_opt) + assert_(not b.flags['WRITEABLE']) + + # transpose + a = np.arange(6).reshape((2, 3)) + + b = np.einsum("ji", a, optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, a.T) + + b = np.einsum(a, [1, 0], optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, a.T) + + # diagonal + a = np.arange(9).reshape((3, 3)) + + b = np.einsum("ii->i", a, optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [a[i, i] for i in range(3)]) + + b = np.einsum(a, [0, 0], [0], optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [a[i, i] for i in range(3)]) + + # diagonal with various ways of broadcasting an additional dimension + a = np.arange(27).reshape((3, 3, 3)) + + b = np.einsum("...ii->...i", a, optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [[x[i, i] for i in range(3)] for x in a]) + + b = np.einsum(a, [Ellipsis, 0, 0], [Ellipsis, 0], optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [[x[i, i] for i in range(3)] for x in a]) + + b = np.einsum("ii...->...i", a, optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [[x[i, i] for i in range(3)] + for x in a.transpose(2, 0, 1)]) + + b = np.einsum(a, [0, 0, Ellipsis], [Ellipsis, 0], optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [[x[i, i] for i in range(3)] + for x in a.transpose(2, 0, 1)]) + + b = np.einsum("...ii->i...", a, optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [a[:, i, i] for i in range(3)]) + + b = np.einsum(a, [Ellipsis, 0, 0], [0, Ellipsis], optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [a[:, i, i] for i in range(3)]) + + b = np.einsum("jii->ij", a, optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [a[:, i, i] for i in range(3)]) + + b = np.einsum(a, [1, 0, 0], [0, 1], optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [a[:, i, i] for i in range(3)]) + + b = np.einsum("ii...->i...", a, optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [a.transpose(2, 0, 1)[:, i, i] for i in range(3)]) + + b = np.einsum(a, [0, 0, Ellipsis], [0, Ellipsis], optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [a.transpose(2, 0, 1)[:, i, i] for i in range(3)]) + + b = np.einsum("i...i->i...", a, optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [a.transpose(1, 0, 2)[:, i, i] for i in range(3)]) + + b = np.einsum(a, [0, Ellipsis, 0], [0, Ellipsis], optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [a.transpose(1, 0, 2)[:, i, i] for i in range(3)]) + + b = np.einsum("i...i->...i", a, optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [[x[i, i] for i in range(3)] + for x in a.transpose(1, 0, 2)]) + + b = np.einsum(a, [0, Ellipsis, 0], [Ellipsis, 0], optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [[x[i, i] for i in range(3)] + for x in a.transpose(1, 0, 2)]) + + # triple diagonal + a = np.arange(27).reshape((3, 3, 3)) + + b = np.einsum("iii->i", a, optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [a[i, i, i] for i in range(3)]) + + b = np.einsum(a, [0, 0, 0], [0], optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, [a[i, i, i] for i in range(3)]) + + # swap axes + a = np.arange(24).reshape((2, 3, 4)) + + b = np.einsum("ijk->jik", a, optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, a.swapaxes(0, 1)) + + b = np.einsum(a, [0, 1, 2], [1, 0, 2], optimize=do_opt) + assert_(b.base is a.base) + assert_equal(b, a.swapaxes(0, 1)) + + def check_einsum_sums(self, dtype, do_opt=False): + dtype = np.dtype(dtype) + # Check various sums. Does many sizes to exercise unrolled loops. + + # sum(a, axis=-1) + for n in range(1, 17): + a = np.arange(n, dtype=dtype) + b = np.sum(a, axis=-1) + if hasattr(b, 'astype'): + b = b.astype(dtype) + assert_equal(np.einsum("i->", a, optimize=do_opt), b) + assert_equal(np.einsum(a, [0], [], optimize=do_opt), b) + + for n in range(1, 17): + a = np.arange(2 * 3 * n, dtype=dtype).reshape(2, 3, n) + b = np.sum(a, axis=-1) + if hasattr(b, 'astype'): + b = b.astype(dtype) + assert_equal(np.einsum("...i->...", a, optimize=do_opt), b) + assert_equal(np.einsum(a, [Ellipsis, 0], [Ellipsis], optimize=do_opt), b) + + # sum(a, axis=0) + for n in range(1, 17): + a = np.arange(2 * n, dtype=dtype).reshape(2, n) + b = np.sum(a, axis=0) + if hasattr(b, 'astype'): + b = b.astype(dtype) + assert_equal(np.einsum("i...->...", a, optimize=do_opt), b) + assert_equal(np.einsum(a, [0, Ellipsis], [Ellipsis], optimize=do_opt), b) + + for n in range(1, 17): + a = np.arange(2 * 3 * n, dtype=dtype).reshape(2, 3, n) + b = np.sum(a, axis=0) + if hasattr(b, 'astype'): + b = b.astype(dtype) + assert_equal(np.einsum("i...->...", a, optimize=do_opt), b) + assert_equal(np.einsum(a, [0, Ellipsis], [Ellipsis], optimize=do_opt), b) + + # trace(a) + for n in range(1, 17): + a = np.arange(n * n, dtype=dtype).reshape(n, n) + b = np.trace(a) + if hasattr(b, 'astype'): + b = b.astype(dtype) + assert_equal(np.einsum("ii", a, optimize=do_opt), b) + assert_equal(np.einsum(a, [0, 0], optimize=do_opt), b) + + # gh-15961: should accept numpy int64 type in subscript list + np_array = np.asarray([0, 0]) + assert_equal(np.einsum(a, np_array, optimize=do_opt), b) + assert_equal(np.einsum(a, list(np_array), optimize=do_opt), b) + + # multiply(a, b) + assert_equal(np.einsum("..., ...", 3, 4), 12) # scalar case + for n in range(1, 17): + a = np.arange(3 * n, dtype=dtype).reshape(3, n) + b = np.arange(2 * 3 * n, dtype=dtype).reshape(2, 3, n) + assert_equal(np.einsum("..., ...", a, b, optimize=do_opt), + np.multiply(a, b)) + assert_equal(np.einsum(a, [Ellipsis], b, [Ellipsis], optimize=do_opt), + np.multiply(a, b)) + + # inner(a,b) + for n in range(1, 17): + a = np.arange(2 * 3 * n, dtype=dtype).reshape(2, 3, n) + b = np.arange(n, dtype=dtype) + assert_equal(np.einsum("...i, ...i", a, b, optimize=do_opt), np.inner(a, b)) + assert_equal(np.einsum(a, [Ellipsis, 0], b, [Ellipsis, 0], optimize=do_opt), + np.inner(a, b)) + + for n in range(1, 11): + a = np.arange(n * 3 * 2, dtype=dtype).reshape(n, 3, 2) + b = np.arange(n, dtype=dtype) + assert_equal(np.einsum("i..., i...", a, b, optimize=do_opt), + np.inner(a.T, b.T).T) + assert_equal(np.einsum(a, [0, Ellipsis], b, [0, Ellipsis], optimize=do_opt), + np.inner(a.T, b.T).T) + + # outer(a,b) + for n in range(1, 17): + a = np.arange(3, dtype=dtype) + 1 + b = np.arange(n, dtype=dtype) + 1 + assert_equal(np.einsum("i,j", a, b, optimize=do_opt), + np.outer(a, b)) + assert_equal(np.einsum(a, [0], b, [1], optimize=do_opt), + np.outer(a, b)) + + # Suppress the complex warnings for the 'as f8' tests + with warnings.catch_warnings(): + warnings.simplefilter('ignore', np.exceptions.ComplexWarning) + + # matvec(a,b) / a.dot(b) where a is matrix, b is vector + for n in range(1, 17): + a = np.arange(4 * n, dtype=dtype).reshape(4, n) + b = np.arange(n, dtype=dtype) + assert_equal(np.einsum("ij, j", a, b, optimize=do_opt), + np.dot(a, b)) + assert_equal(np.einsum(a, [0, 1], b, [1], optimize=do_opt), + np.dot(a, b)) + + c = np.arange(4, dtype=dtype) + np.einsum("ij,j", a, b, out=c, + dtype='f8', casting='unsafe', optimize=do_opt) + assert_equal(c, + np.dot(a.astype('f8'), + b.astype('f8')).astype(dtype)) + c[...] = 0 + np.einsum(a, [0, 1], b, [1], out=c, + dtype='f8', casting='unsafe', optimize=do_opt) + assert_equal(c, + np.dot(a.astype('f8'), + b.astype('f8')).astype(dtype)) + + for n in range(1, 17): + a = np.arange(4 * n, dtype=dtype).reshape(4, n) + b = np.arange(n, dtype=dtype) + assert_equal(np.einsum("ji,j", a.T, b.T, optimize=do_opt), + np.dot(b.T, a.T)) + assert_equal(np.einsum(a.T, [1, 0], b.T, [1], optimize=do_opt), + np.dot(b.T, a.T)) + + c = np.arange(4, dtype=dtype) + np.einsum("ji,j", a.T, b.T, out=c, + dtype='f8', casting='unsafe', optimize=do_opt) + assert_equal(c, + np.dot(b.T.astype('f8'), + a.T.astype('f8')).astype(dtype)) + c[...] = 0 + np.einsum(a.T, [1, 0], b.T, [1], out=c, + dtype='f8', casting='unsafe', optimize=do_opt) + assert_equal(c, + np.dot(b.T.astype('f8'), + a.T.astype('f8')).astype(dtype)) + + # matmat(a,b) / a.dot(b) where a is matrix, b is matrix + for n in range(1, 17): + if n < 8 or dtype != 'f2': + a = np.arange(4 * n, dtype=dtype).reshape(4, n) + b = np.arange(n * 6, dtype=dtype).reshape(n, 6) + assert_equal(np.einsum("ij,jk", a, b, optimize=do_opt), + np.dot(a, b)) + assert_equal(np.einsum(a, [0, 1], b, [1, 2], optimize=do_opt), + np.dot(a, b)) + + for n in range(1, 17): + a = np.arange(4 * n, dtype=dtype).reshape(4, n) + b = np.arange(n * 6, dtype=dtype).reshape(n, 6) + c = np.arange(24, dtype=dtype).reshape(4, 6) + np.einsum("ij,jk", a, b, out=c, dtype='f8', casting='unsafe', + optimize=do_opt) + assert_equal(c, + np.dot(a.astype('f8'), + b.astype('f8')).astype(dtype)) + c[...] = 0 + np.einsum(a, [0, 1], b, [1, 2], out=c, + dtype='f8', casting='unsafe', optimize=do_opt) + assert_equal(c, + np.dot(a.astype('f8'), + b.astype('f8')).astype(dtype)) + + # matrix triple product (note this is not currently an efficient + # way to multiply 3 matrices) + a = np.arange(12, dtype=dtype).reshape(3, 4) + b = np.arange(20, dtype=dtype).reshape(4, 5) + c = np.arange(30, dtype=dtype).reshape(5, 6) + if dtype != 'f2': + assert_equal(np.einsum("ij,jk,kl", a, b, c, optimize=do_opt), + a.dot(b).dot(c)) + assert_equal(np.einsum(a, [0, 1], b, [1, 2], c, [2, 3], + optimize=do_opt), a.dot(b).dot(c)) + + d = np.arange(18, dtype=dtype).reshape(3, 6) + np.einsum("ij,jk,kl", a, b, c, out=d, + dtype='f8', casting='unsafe', optimize=do_opt) + tgt = a.astype('f8').dot(b.astype('f8')) + tgt = tgt.dot(c.astype('f8')).astype(dtype) + assert_equal(d, tgt) + + d[...] = 0 + np.einsum(a, [0, 1], b, [1, 2], c, [2, 3], out=d, + dtype='f8', casting='unsafe', optimize=do_opt) + tgt = a.astype('f8').dot(b.astype('f8')) + tgt = tgt.dot(c.astype('f8')).astype(dtype) + assert_equal(d, tgt) + + # tensordot(a, b) + if np.dtype(dtype) != np.dtype('f2'): + a = np.arange(60, dtype=dtype).reshape(3, 4, 5) + b = np.arange(24, dtype=dtype).reshape(4, 3, 2) + assert_equal(np.einsum("ijk, jil -> kl", a, b), + np.tensordot(a, b, axes=([1, 0], [0, 1]))) + assert_equal(np.einsum(a, [0, 1, 2], b, [1, 0, 3], [2, 3]), + np.tensordot(a, b, axes=([1, 0], [0, 1]))) + + c = np.arange(10, dtype=dtype).reshape(5, 2) + np.einsum("ijk,jil->kl", a, b, out=c, + dtype='f8', casting='unsafe', optimize=do_opt) + assert_equal(c, np.tensordot(a.astype('f8'), b.astype('f8'), + axes=([1, 0], [0, 1])).astype(dtype)) + c[...] = 0 + np.einsum(a, [0, 1, 2], b, [1, 0, 3], [2, 3], out=c, + dtype='f8', casting='unsafe', optimize=do_opt) + assert_equal(c, np.tensordot(a.astype('f8'), b.astype('f8'), + axes=([1, 0], [0, 1])).astype(dtype)) + + # logical_and(logical_and(a!=0, b!=0), c!=0) + neg_val = -2 if dtype.kind != "u" else np.iinfo(dtype).max - 1 + a = np.array([1, 3, neg_val, 0, 12, 13, 0, 1], dtype=dtype) + b = np.array([0, 3.5, 0., neg_val, 0, 1, 3, 12], dtype=dtype) + c = np.array([True, True, False, True, True, False, True, True]) + + assert_equal(np.einsum("i,i,i->i", a, b, c, + dtype='?', casting='unsafe', optimize=do_opt), + np.logical_and(np.logical_and(a != 0, b != 0), c != 0)) + assert_equal(np.einsum(a, [0], b, [0], c, [0], [0], + dtype='?', casting='unsafe'), + np.logical_and(np.logical_and(a != 0, b != 0), c != 0)) + + a = np.arange(9, dtype=dtype) + assert_equal(np.einsum(",i->", 3, a), 3 * np.sum(a)) + assert_equal(np.einsum(3, [], a, [0], []), 3 * np.sum(a)) + assert_equal(np.einsum("i,->", a, 3), 3 * np.sum(a)) + assert_equal(np.einsum(a, [0], 3, [], []), 3 * np.sum(a)) + + # Various stride0, contiguous, and SSE aligned variants + for n in range(1, 25): + a = np.arange(n, dtype=dtype) + if np.dtype(dtype).itemsize > 1: + assert_equal(np.einsum("...,...", a, a, optimize=do_opt), + np.multiply(a, a)) + assert_equal(np.einsum("i,i", a, a, optimize=do_opt), np.dot(a, a)) + assert_equal(np.einsum("i,->i", a, 2, optimize=do_opt), 2 * a) + assert_equal(np.einsum(",i->i", 2, a, optimize=do_opt), 2 * a) + assert_equal(np.einsum("i,->", a, 2, optimize=do_opt), 2 * np.sum(a)) + assert_equal(np.einsum(",i->", 2, a, optimize=do_opt), 2 * np.sum(a)) + + assert_equal(np.einsum("...,...", a[1:], a[:-1], optimize=do_opt), + np.multiply(a[1:], a[:-1])) + assert_equal(np.einsum("i,i", a[1:], a[:-1], optimize=do_opt), + np.dot(a[1:], a[:-1])) + assert_equal(np.einsum("i,->i", a[1:], 2, optimize=do_opt), 2 * a[1:]) + assert_equal(np.einsum(",i->i", 2, a[1:], optimize=do_opt), 2 * a[1:]) + assert_equal(np.einsum("i,->", a[1:], 2, optimize=do_opt), + 2 * np.sum(a[1:])) + assert_equal(np.einsum(",i->", 2, a[1:], optimize=do_opt), + 2 * np.sum(a[1:])) + + # An object array, summed as the data type + a = np.arange(9, dtype=object) + + b = np.einsum("i->", a, dtype=dtype, casting='unsafe') + assert_equal(b, np.sum(a)) + if hasattr(b, "dtype"): + # Can be a python object when dtype is object + assert_equal(b.dtype, np.dtype(dtype)) + + b = np.einsum(a, [0], [], dtype=dtype, casting='unsafe') + assert_equal(b, np.sum(a)) + if hasattr(b, "dtype"): + # Can be a python object when dtype is object + assert_equal(b.dtype, np.dtype(dtype)) + + # A case which was failing (ticket #1885) + p = np.arange(2) + 1 + q = np.arange(4).reshape(2, 2) + 3 + r = np.arange(4).reshape(2, 2) + 7 + assert_equal(np.einsum('z,mz,zm->', p, q, r), 253) + + # singleton dimensions broadcast (gh-10343) + p = np.ones((10, 2)) + q = np.ones((1, 2)) + assert_array_equal(np.einsum('ij,ij->j', p, q, optimize=True), + np.einsum('ij,ij->j', p, q, optimize=False)) + assert_array_equal(np.einsum('ij,ij->j', p, q, optimize=True), + [10.] * 2) + + # a blas-compatible contraction broadcasting case which was failing + # for optimize=True (ticket #10930) + x = np.array([2., 3.]) + y = np.array([4.]) + assert_array_equal(np.einsum("i, i", x, y, optimize=False), 20.) + assert_array_equal(np.einsum("i, i", x, y, optimize=True), 20.) + + # all-ones array was bypassing bug (ticket #10930) + p = np.ones((1, 5)) / 2 + q = np.ones((5, 5)) / 2 + for optimize in (True, False): + assert_array_equal(np.einsum("...ij,...jk->...ik", p, p, + optimize=optimize), + np.einsum("...ij,...jk->...ik", p, q, + optimize=optimize)) + assert_array_equal(np.einsum("...ij,...jk->...ik", p, q, + optimize=optimize), + np.full((1, 5), 1.25)) + + # Cases which were failing (gh-10899) + x = np.eye(2, dtype=dtype) + y = np.ones(2, dtype=dtype) + assert_array_equal(np.einsum("ji,i->", x, y, optimize=optimize), + [2.]) # contig_contig_outstride0_two + assert_array_equal(np.einsum("i,ij->", y, x, optimize=optimize), + [2.]) # stride0_contig_outstride0_two + assert_array_equal(np.einsum("ij,i->", x, y, optimize=optimize), + [2.]) # contig_stride0_outstride0_two + + def test_einsum_sums_int8(self): + self.check_einsum_sums('i1') + + def test_einsum_sums_uint8(self): + self.check_einsum_sums('u1') + + def test_einsum_sums_int16(self): + self.check_einsum_sums('i2') + + def test_einsum_sums_uint16(self): + self.check_einsum_sums('u2') + + def test_einsum_sums_int32(self): + self.check_einsum_sums('i4') + self.check_einsum_sums('i4', True) + + def test_einsum_sums_uint32(self): + self.check_einsum_sums('u4') + self.check_einsum_sums('u4', True) + + def test_einsum_sums_int64(self): + self.check_einsum_sums('i8') + + def test_einsum_sums_uint64(self): + self.check_einsum_sums('u8') + + def test_einsum_sums_float16(self): + self.check_einsum_sums('f2') + + def test_einsum_sums_float32(self): + self.check_einsum_sums('f4') + + def test_einsum_sums_float64(self): + self.check_einsum_sums('f8') + self.check_einsum_sums('f8', True) + + def test_einsum_sums_longdouble(self): + self.check_einsum_sums(np.longdouble) + + def test_einsum_sums_cfloat64(self): + self.check_einsum_sums('c8') + self.check_einsum_sums('c8', True) + + def test_einsum_sums_cfloat128(self): + self.check_einsum_sums('c16') + + def test_einsum_sums_clongdouble(self): + self.check_einsum_sums(np.clongdouble) + + def test_einsum_sums_object(self): + self.check_einsum_sums('object') + self.check_einsum_sums('object', True) + + def test_einsum_misc(self): + # This call used to crash because of a bug in + # PyArray_AssignZero + a = np.ones((1, 2)) + b = np.ones((2, 2, 1)) + assert_equal(np.einsum('ij...,j...->i...', a, b), [[[2], [2]]]) + assert_equal(np.einsum('ij...,j...->i...', a, b, optimize=True), [[[2], [2]]]) + + # Regression test for issue #10369 (test unicode inputs with Python 2) + assert_equal(np.einsum('ij...,j...->i...', a, b), [[[2], [2]]]) + assert_equal(np.einsum('...i,...i', [1, 2, 3], [2, 3, 4]), 20) + assert_equal(np.einsum('...i,...i', [1, 2, 3], [2, 3, 4], + optimize='greedy'), 20) + + # The iterator had an issue with buffering this reduction + a = np.ones((5, 12, 4, 2, 3), np.int64) + b = np.ones((5, 12, 11), np.int64) + assert_equal(np.einsum('ijklm,ijn,ijn->', a, b, b), + np.einsum('ijklm,ijn->', a, b)) + assert_equal(np.einsum('ijklm,ijn,ijn->', a, b, b, optimize=True), + np.einsum('ijklm,ijn->', a, b, optimize=True)) + + # Issue #2027, was a problem in the contiguous 3-argument + # inner loop implementation + a = np.arange(1, 3) + b = np.arange(1, 5).reshape(2, 2) + c = np.arange(1, 9).reshape(4, 2) + assert_equal(np.einsum('x,yx,zx->xzy', a, b, c), + [[[1, 3], [3, 9], [5, 15], [7, 21]], + [[8, 16], [16, 32], [24, 48], [32, 64]]]) + assert_equal(np.einsum('x,yx,zx->xzy', a, b, c, optimize=True), + [[[1, 3], [3, 9], [5, 15], [7, 21]], + [[8, 16], [16, 32], [24, 48], [32, 64]]]) + + # Ensure explicitly setting out=None does not cause an error + # see issue gh-15776 and issue gh-15256 + assert_equal(np.einsum('i,j', [1], [2], out=None), [[2]]) + + def test_object_loop(self): + + class Mult: + def __mul__(self, other): + return 42 + + objMult = np.array([Mult()]) + objNULL = np.ndarray(buffer=b'\0' * np.intp(0).itemsize, shape=1, dtype=object) + + with pytest.raises(TypeError): + np.einsum("i,j", [1], objNULL) + with pytest.raises(TypeError): + np.einsum("i,j", objNULL, [1]) + assert np.einsum("i,j", objMult, objMult) == 42 + + def test_subscript_range(self): + # Issue #7741, make sure that all letters of Latin alphabet (both uppercase & lowercase) can be used + # when creating a subscript from arrays + a = np.ones((2, 3)) + b = np.ones((3, 4)) + np.einsum(a, [0, 20], b, [20, 2], [0, 2], optimize=False) + np.einsum(a, [0, 27], b, [27, 2], [0, 2], optimize=False) + np.einsum(a, [0, 51], b, [51, 2], [0, 2], optimize=False) + assert_raises(ValueError, lambda: np.einsum(a, [0, 52], b, [52, 2], [0, 2], optimize=False)) + assert_raises(ValueError, lambda: np.einsum(a, [-1, 5], b, [5, 2], [-1, 2], optimize=False)) + + def test_einsum_broadcast(self): + # Issue #2455 change in handling ellipsis + # remove the 'middle broadcast' error + # only use the 'RIGHT' iteration in prepare_op_axes + # adds auto broadcast on left where it belongs + # broadcast on right has to be explicit + # We need to test the optimized parsing as well + + A = np.arange(2 * 3 * 4).reshape(2, 3, 4) + B = np.arange(3) + ref = np.einsum('ijk,j->ijk', A, B, optimize=False) + for opt in [True, False]: + assert_equal(np.einsum('ij...,j...->ij...', A, B, optimize=opt), ref) + assert_equal(np.einsum('ij...,...j->ij...', A, B, optimize=opt), ref) + assert_equal(np.einsum('ij...,j->ij...', A, B, optimize=opt), ref) # used to raise error + + A = np.arange(12).reshape((4, 3)) + B = np.arange(6).reshape((3, 2)) + ref = np.einsum('ik,kj->ij', A, B, optimize=False) + for opt in [True, False]: + assert_equal(np.einsum('ik...,k...->i...', A, B, optimize=opt), ref) + assert_equal(np.einsum('ik...,...kj->i...j', A, B, optimize=opt), ref) + assert_equal(np.einsum('...k,kj', A, B, optimize=opt), ref) # used to raise error + assert_equal(np.einsum('ik,k...->i...', A, B, optimize=opt), ref) # used to raise error + + dims = [2, 3, 4, 5] + a = np.arange(np.prod(dims)).reshape(dims) + v = np.arange(dims[2]) + ref = np.einsum('ijkl,k->ijl', a, v, optimize=False) + for opt in [True, False]: + assert_equal(np.einsum('ijkl,k', a, v, optimize=opt), ref) + assert_equal(np.einsum('...kl,k', a, v, optimize=opt), ref) # used to raise error + assert_equal(np.einsum('...kl,k...', a, v, optimize=opt), ref) + + J, K, M = 160, 160, 120 + A = np.arange(J * K * M).reshape(1, 1, 1, J, K, M) + B = np.arange(J * K * M * 3).reshape(J, K, M, 3) + ref = np.einsum('...lmn,...lmno->...o', A, B, optimize=False) + for opt in [True, False]: + assert_equal(np.einsum('...lmn,lmno->...o', A, B, + optimize=opt), ref) # used to raise error + + def test_einsum_fixedstridebug(self): + # Issue #4485 obscure einsum bug + # This case revealed a bug in nditer where it reported a stride + # as 'fixed' (0) when it was in fact not fixed during processing + # (0 or 4). The reason for the bug was that the check for a fixed + # stride was using the information from the 2D inner loop reuse + # to restrict the iteration dimensions it had to validate to be + # the same, but that 2D inner loop reuse logic is only triggered + # during the buffer copying step, and hence it was invalid to + # rely on those values. The fix is to check all the dimensions + # of the stride in question, which in the test case reveals that + # the stride is not fixed. + # + # NOTE: This test is triggered by the fact that the default buffersize, + # used by einsum, is 8192, and 3*2731 = 8193, is larger than that + # and results in a mismatch between the buffering and the + # striding for operand A. + A = np.arange(2 * 3).reshape(2, 3).astype(np.float32) + B = np.arange(2 * 3 * 2731).reshape(2, 3, 2731).astype(np.int16) + es = np.einsum('cl, cpx->lpx', A, B) + tp = np.tensordot(A, B, axes=(0, 0)) + assert_equal(es, tp) + # The following is the original test case from the bug report, + # made repeatable by changing random arrays to aranges. + A = np.arange(3 * 3).reshape(3, 3).astype(np.float64) + B = np.arange(3 * 3 * 64 * 64).reshape(3, 3, 64, 64).astype(np.float32) + es = np.einsum('cl, cpxy->lpxy', A, B) + tp = np.tensordot(A, B, axes=(0, 0)) + assert_equal(es, tp) + + def test_einsum_fixed_collapsingbug(self): + # Issue #5147. + # The bug only occurred when output argument of einssum was used. + x = np.random.normal(0, 1, (5, 5, 5, 5)) + y1 = np.zeros((5, 5)) + np.einsum('aabb->ab', x, out=y1) + idx = np.arange(5) + y2 = x[idx[:, None], idx[:, None], idx, idx] + assert_equal(y1, y2) + + def test_einsum_failed_on_p9_and_s390x(self): + # Issues gh-14692 and gh-12689 + # Bug with signed vs unsigned char errored on power9 and s390x Linux + tensor = np.random.random_sample((10, 10, 10, 10)) + x = np.einsum('ijij->', tensor) + y = tensor.trace(axis1=0, axis2=2).trace() + assert_allclose(x, y) + + def test_einsum_all_contig_non_contig_output(self): + # Issue gh-5907, tests that the all contiguous special case + # actually checks the contiguity of the output + x = np.ones((5, 5)) + out = np.ones(10)[::2] + correct_base = np.ones(10) + correct_base[::2] = 5 + # Always worked (inner iteration is done with 0-stride): + np.einsum('mi,mi,mi->m', x, x, x, out=out) + assert_array_equal(out.base, correct_base) + # Example 1: + out = np.ones(10)[::2] + np.einsum('im,im,im->m', x, x, x, out=out) + assert_array_equal(out.base, correct_base) + # Example 2, buffering causes x to be contiguous but + # special cases do not catch the operation before: + out = np.ones((2, 2, 2))[..., 0] + correct_base = np.ones((2, 2, 2)) + correct_base[..., 0] = 2 + x = np.ones((2, 2), np.float32) + np.einsum('ij,jk->ik', x, x, out=out) + assert_array_equal(out.base, correct_base) + + @pytest.mark.parametrize("dtype", + np.typecodes["AllFloat"] + np.typecodes["AllInteger"]) + def test_different_paths(self, dtype): + # Test originally added to cover broken float16 path: gh-20305 + # Likely most are covered elsewhere, at least partially. + dtype = np.dtype(dtype) + # Simple test, designed to exercise most specialized code paths, + # note the +0.5 for floats. This makes sure we use a float value + # where the results must be exact. + arr = (np.arange(7) + 0.5).astype(dtype) + scalar = np.array(2, dtype=dtype) + + # contig -> scalar: + res = np.einsum('i->', arr) + assert res == arr.sum() + # contig, contig -> contig: + res = np.einsum('i,i->i', arr, arr) + assert_array_equal(res, arr * arr) + # noncontig, noncontig -> contig: + res = np.einsum('i,i->i', arr.repeat(2)[::2], arr.repeat(2)[::2]) + assert_array_equal(res, arr * arr) + # contig + contig -> scalar + assert np.einsum('i,i->', arr, arr) == (arr * arr).sum() + # contig + scalar -> contig (with out) + out = np.ones(7, dtype=dtype) + res = np.einsum('i,->i', arr, dtype.type(2), out=out) + assert_array_equal(res, arr * dtype.type(2)) + # scalar + contig -> contig (with out) + res = np.einsum(',i->i', scalar, arr) + assert_array_equal(res, arr * dtype.type(2)) + # scalar + contig -> scalar + res = np.einsum(',i->', scalar, arr) + # Use einsum to compare to not have difference due to sum round-offs: + assert res == np.einsum('i->', scalar * arr) + # contig + scalar -> scalar + res = np.einsum('i,->', arr, scalar) + # Use einsum to compare to not have difference due to sum round-offs: + assert res == np.einsum('i->', scalar * arr) + # contig + contig + contig -> scalar + arr = np.array([0.5, 0.5, 0.25, 4.5, 3.], dtype=dtype) + res = np.einsum('i,i,i->', arr, arr, arr) + assert_array_equal(res, (arr * arr * arr).sum()) + # four arrays: + res = np.einsum('i,i,i,i->', arr, arr, arr, arr) + assert_array_equal(res, (arr * arr * arr * arr).sum()) + + def test_small_boolean_arrays(self): + # See gh-5946. + # Use array of True embedded in False. + a = np.zeros((16, 1, 1), dtype=np.bool)[:2] + a[...] = True + out = np.zeros((16, 1, 1), dtype=np.bool)[:2] + tgt = np.ones((2, 1, 1), dtype=np.bool) + res = np.einsum('...ij,...jk->...ik', a, a, out=out) + assert_equal(res, tgt) + + def test_out_is_res(self): + a = np.arange(9).reshape(3, 3) + res = np.einsum('...ij,...jk->...ik', a, a, out=a) + assert res is a + + def optimize_compare(self, subscripts, operands=None): + # Tests all paths of the optimization function against + # conventional einsum + if operands is None: + args = [subscripts] + terms = subscripts.split('->')[0].split(',') + for term in terms: + dims = [global_size_dict[x] for x in term] + args.append(np.random.rand(*dims)) + else: + args = [subscripts] + operands + + noopt = np.einsum(*args, optimize=False) + opt = np.einsum(*args, optimize='greedy') + assert_almost_equal(opt, noopt) + opt = np.einsum(*args, optimize='optimal') + assert_almost_equal(opt, noopt) + + def test_hadamard_like_products(self): + # Hadamard outer products + self.optimize_compare('a,ab,abc->abc') + self.optimize_compare('a,b,ab->ab') + + def test_index_transformations(self): + # Simple index transformation cases + self.optimize_compare('ea,fb,gc,hd,abcd->efgh') + self.optimize_compare('ea,fb,abcd,gc,hd->efgh') + self.optimize_compare('abcd,ea,fb,gc,hd->efgh') + + def test_complex(self): + # Long test cases + self.optimize_compare('acdf,jbje,gihb,hfac,gfac,gifabc,hfac') + self.optimize_compare('acdf,jbje,gihb,hfac,gfac,gifabc,hfac') + self.optimize_compare('cd,bdhe,aidb,hgca,gc,hgibcd,hgac') + self.optimize_compare('abhe,hidj,jgba,hiab,gab') + self.optimize_compare('bde,cdh,agdb,hica,ibd,hgicd,hiac') + self.optimize_compare('chd,bde,agbc,hiad,hgc,hgi,hiad') + self.optimize_compare('chd,bde,agbc,hiad,bdi,cgh,agdb') + self.optimize_compare('bdhe,acad,hiab,agac,hibd') + + def test_collapse(self): + # Inner products + self.optimize_compare('ab,ab,c->') + self.optimize_compare('ab,ab,c->c') + self.optimize_compare('ab,ab,cd,cd->') + self.optimize_compare('ab,ab,cd,cd->ac') + self.optimize_compare('ab,ab,cd,cd->cd') + self.optimize_compare('ab,ab,cd,cd,ef,ef->') + + def test_expand(self): + # Outer products + self.optimize_compare('ab,cd,ef->abcdef') + self.optimize_compare('ab,cd,ef->acdf') + self.optimize_compare('ab,cd,de->abcde') + self.optimize_compare('ab,cd,de->be') + self.optimize_compare('ab,bcd,cd->abcd') + self.optimize_compare('ab,bcd,cd->abd') + + def test_edge_cases(self): + # Difficult edge cases for optimization + self.optimize_compare('eb,cb,fb->cef') + self.optimize_compare('dd,fb,be,cdb->cef') + self.optimize_compare('bca,cdb,dbf,afc->') + self.optimize_compare('dcc,fce,ea,dbf->ab') + self.optimize_compare('fdf,cdd,ccd,afe->ae') + self.optimize_compare('abcd,ad') + self.optimize_compare('ed,fcd,ff,bcf->be') + self.optimize_compare('baa,dcf,af,cde->be') + self.optimize_compare('bd,db,eac->ace') + self.optimize_compare('fff,fae,bef,def->abd') + self.optimize_compare('efc,dbc,acf,fd->abe') + self.optimize_compare('ba,ac,da->bcd') + + def test_inner_product(self): + # Inner products + self.optimize_compare('ab,ab') + self.optimize_compare('ab,ba') + self.optimize_compare('abc,abc') + self.optimize_compare('abc,bac') + self.optimize_compare('abc,cba') + + def test_random_cases(self): + # Randomly built test cases + self.optimize_compare('aab,fa,df,ecc->bde') + self.optimize_compare('ecb,fef,bad,ed->ac') + self.optimize_compare('bcf,bbb,fbf,fc->') + self.optimize_compare('bb,ff,be->e') + self.optimize_compare('bcb,bb,fc,fff->') + self.optimize_compare('fbb,dfd,fc,fc->') + self.optimize_compare('afd,ba,cc,dc->bf') + self.optimize_compare('adb,bc,fa,cfc->d') + self.optimize_compare('bbd,bda,fc,db->acf') + self.optimize_compare('dba,ead,cad->bce') + self.optimize_compare('aef,fbc,dca->bde') + + def test_combined_views_mapping(self): + # gh-10792 + a = np.arange(9).reshape(1, 1, 3, 1, 3) + b = np.einsum('bbcdc->d', a) + assert_equal(b, [12]) + + def test_broadcasting_dot_cases(self): + # Ensures broadcasting cases are not mistaken for GEMM + + a = np.random.rand(1, 5, 4) + b = np.random.rand(4, 6) + c = np.random.rand(5, 6) + d = np.random.rand(10) + + self.optimize_compare('ijk,kl,jl', operands=[a, b, c]) + self.optimize_compare('ijk,kl,jl,i->i', operands=[a, b, c, d]) + + e = np.random.rand(1, 1, 5, 4) + f = np.random.rand(7, 7) + self.optimize_compare('abjk,kl,jl', operands=[e, b, c]) + self.optimize_compare('abjk,kl,jl,ab->ab', operands=[e, b, c, f]) + + # Edge case found in gh-11308 + g = np.arange(64).reshape(2, 4, 8) + self.optimize_compare('obk,ijk->ioj', operands=[g, g]) + + def test_output_order(self): + # Ensure output order is respected for optimize cases, the below + # contraction should yield a reshaped tensor view + # gh-16415 + + a = np.ones((2, 3, 5), order='F') + b = np.ones((4, 3), order='F') + + for opt in [True, False]: + tmp = np.einsum('...ft,mf->...mt', a, b, order='a', optimize=opt) + assert_(tmp.flags.f_contiguous) + + tmp = np.einsum('...ft,mf->...mt', a, b, order='f', optimize=opt) + assert_(tmp.flags.f_contiguous) + + tmp = np.einsum('...ft,mf->...mt', a, b, order='c', optimize=opt) + assert_(tmp.flags.c_contiguous) + + tmp = np.einsum('...ft,mf->...mt', a, b, order='k', optimize=opt) + assert_(tmp.flags.c_contiguous is False) + assert_(tmp.flags.f_contiguous is False) + + tmp = np.einsum('...ft,mf->...mt', a, b, optimize=opt) + assert_(tmp.flags.c_contiguous is False) + assert_(tmp.flags.f_contiguous is False) + + c = np.ones((4, 3), order='C') + for opt in [True, False]: + tmp = np.einsum('...ft,mf->...mt', a, c, order='a', optimize=opt) + assert_(tmp.flags.c_contiguous) + + d = np.ones((2, 3, 5), order='C') + for opt in [True, False]: + tmp = np.einsum('...ft,mf->...mt', d, c, order='a', optimize=opt) + assert_(tmp.flags.c_contiguous) + + def test_singleton_broadcasting(self): + eq = "ijp,ipq,ikq->ijk" + shapes = ((3, 1, 1), (3, 1, 3), (1, 3, 3)) + arrays = [np.random.rand(*shape) for shape in shapes] + self.optimize_compare(eq, operands=arrays) + + eq = "jhcabhijaci,dfijejgh->fgje" + shapes = ( + (1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1), + (3, 1, 3, 1, 1, 1, 1, 2), + ) + arrays = [np.random.rand(*shape) for shape in shapes] + self.optimize_compare(eq, operands=arrays) + + eq = "baegffahgc,hdggeff->dhg" + shapes = ((2, 1, 4, 1, 1, 1, 1, 2, 1, 1), (1, 1, 1, 1, 4, 1, 1)) + arrays = [np.random.rand(*shape) for shape in shapes] + self.optimize_compare(eq, operands=arrays) + + eq = "cehgbaifff,fhhdegih->cdghbi" + shapes = ((1, 1, 1, 1, 1, 1, 1, 1, 1, 1), (2, 1, 1, 2, 4, 1, 1, 1)) + arrays = [np.random.rand(*shape) for shape in shapes] + self.optimize_compare(eq, operands=arrays) + + eq = "gah,cdbcghefg->ef" + shapes = ((2, 3, 1), (1, 3, 1, 1, 1, 2, 1, 4, 1)) + arrays = [np.random.rand(*shape) for shape in shapes] + self.optimize_compare(eq, operands=arrays) + + eq = "cacc,bcb->" + shapes = ((1, 1, 1, 1), (1, 4, 1)) + arrays = [np.random.rand(*shape) for shape in shapes] + self.optimize_compare(eq, operands=arrays) + + +class TestEinsumPath: + def build_operands(self, string, size_dict=global_size_dict): + + # Builds views based off initial operands + operands = [string] + terms = string.split('->')[0].split(',') + for term in terms: + dims = [size_dict[x] for x in term] + operands.append(np.random.rand(*dims)) + + return operands + + def assert_path_equal(self, comp, benchmark): + # Checks if list of tuples are equivalent + ret = (len(comp) == len(benchmark)) + assert_(ret) + for pos in range(len(comp) - 1): + ret &= isinstance(comp[pos + 1], tuple) + ret &= (comp[pos + 1] == benchmark[pos + 1]) + assert_(ret) + + def test_memory_contraints(self): + # Ensure memory constraints are satisfied + + outer_test = self.build_operands('a,b,c->abc') + + path, path_str = np.einsum_path(*outer_test, optimize=('greedy', 0)) + self.assert_path_equal(path, ['einsum_path', (0, 1, 2)]) + + path, path_str = np.einsum_path(*outer_test, optimize=('optimal', 0)) + self.assert_path_equal(path, ['einsum_path', (0, 1, 2)]) + + long_test = self.build_operands('acdf,jbje,gihb,hfac') + path, path_str = np.einsum_path(*long_test, optimize=('greedy', 0)) + self.assert_path_equal(path, ['einsum_path', (0, 1, 2, 3)]) + + path, path_str = np.einsum_path(*long_test, optimize=('optimal', 0)) + self.assert_path_equal(path, ['einsum_path', (0, 1, 2, 3)]) + + def test_long_paths(self): + # Long complex cases + + # Long test 1 + long_test1 = self.build_operands('acdf,jbje,gihb,hfac,gfac,gifabc,hfac') + path, path_str = np.einsum_path(*long_test1, optimize='greedy') + self.assert_path_equal(path, ['einsum_path', + (3, 6), (3, 4), (2, 4), (2, 3), (0, 2), (0, 1)]) + + path, path_str = np.einsum_path(*long_test1, optimize='optimal') + self.assert_path_equal(path, ['einsum_path', + (3, 6), (3, 4), (2, 4), (2, 3), (0, 2), (0, 1)]) + + # Long test 2 + long_test2 = self.build_operands('chd,bde,agbc,hiad,bdi,cgh,agdb') + path, path_str = np.einsum_path(*long_test2, optimize='greedy') + self.assert_path_equal(path, ['einsum_path', + (3, 4), (0, 3), (3, 4), (1, 3), (1, 2), (0, 1)]) + + path, path_str = np.einsum_path(*long_test2, optimize='optimal') + self.assert_path_equal(path, ['einsum_path', + (0, 5), (1, 4), (3, 4), (1, 3), (1, 2), (0, 1)]) + + def test_edge_paths(self): + # Difficult edge cases + + # Edge test1 + edge_test1 = self.build_operands('eb,cb,fb->cef') + path, path_str = np.einsum_path(*edge_test1, optimize='greedy') + self.assert_path_equal(path, ['einsum_path', (0, 2), (0, 1)]) + + path, path_str = np.einsum_path(*edge_test1, optimize='optimal') + self.assert_path_equal(path, ['einsum_path', (0, 2), (0, 1)]) + + # Edge test2 + edge_test2 = self.build_operands('dd,fb,be,cdb->cef') + path, path_str = np.einsum_path(*edge_test2, optimize='greedy') + self.assert_path_equal(path, ['einsum_path', (0, 3), (0, 1), (0, 1)]) + + path, path_str = np.einsum_path(*edge_test2, optimize='optimal') + self.assert_path_equal(path, ['einsum_path', (0, 3), (0, 1), (0, 1)]) + + # Edge test3 + edge_test3 = self.build_operands('bca,cdb,dbf,afc->') + path, path_str = np.einsum_path(*edge_test3, optimize='greedy') + self.assert_path_equal(path, ['einsum_path', (1, 2), (0, 2), (0, 1)]) + + path, path_str = np.einsum_path(*edge_test3, optimize='optimal') + self.assert_path_equal(path, ['einsum_path', (1, 2), (0, 2), (0, 1)]) + + # Edge test4 + edge_test4 = self.build_operands('dcc,fce,ea,dbf->ab') + path, path_str = np.einsum_path(*edge_test4, optimize='greedy') + self.assert_path_equal(path, ['einsum_path', (1, 2), (0, 1), (0, 1)]) + + path, path_str = np.einsum_path(*edge_test4, optimize='optimal') + self.assert_path_equal(path, ['einsum_path', (1, 2), (0, 2), (0, 1)]) + + # Edge test5 + edge_test4 = self.build_operands('a,ac,ab,ad,cd,bd,bc->', + size_dict={"a": 20, "b": 20, "c": 20, "d": 20}) + path, path_str = np.einsum_path(*edge_test4, optimize='greedy') + self.assert_path_equal(path, ['einsum_path', (0, 1), (0, 1, 2, 3, 4, 5)]) + + path, path_str = np.einsum_path(*edge_test4, optimize='optimal') + self.assert_path_equal(path, ['einsum_path', (0, 1), (0, 1, 2, 3, 4, 5)]) + + def test_path_type_input(self): + # Test explicit path handling + path_test = self.build_operands('dcc,fce,ea,dbf->ab') + + path, path_str = np.einsum_path(*path_test, optimize=False) + self.assert_path_equal(path, ['einsum_path', (0, 1, 2, 3)]) + + path, path_str = np.einsum_path(*path_test, optimize=True) + self.assert_path_equal(path, ['einsum_path', (1, 2), (0, 1), (0, 1)]) + + exp_path = ['einsum_path', (0, 2), (0, 2), (0, 1)] + path, path_str = np.einsum_path(*path_test, optimize=exp_path) + self.assert_path_equal(path, exp_path) + + # Double check einsum works on the input path + noopt = np.einsum(*path_test, optimize=False) + opt = np.einsum(*path_test, optimize=exp_path) + assert_almost_equal(noopt, opt) + + def test_path_type_input_internal_trace(self): + # gh-20962 + path_test = self.build_operands('cab,cdd->ab') + exp_path = ['einsum_path', (1,), (0, 1)] + + path, path_str = np.einsum_path(*path_test, optimize=exp_path) + self.assert_path_equal(path, exp_path) + + # Double check einsum works on the input path + noopt = np.einsum(*path_test, optimize=False) + opt = np.einsum(*path_test, optimize=exp_path) + assert_almost_equal(noopt, opt) + + def test_path_type_input_invalid(self): + path_test = self.build_operands('ab,bc,cd,de->ae') + exp_path = ['einsum_path', (2, 3), (0, 1)] + assert_raises(RuntimeError, np.einsum, *path_test, optimize=exp_path) + assert_raises( + RuntimeError, np.einsum_path, *path_test, optimize=exp_path) + + path_test = self.build_operands('a,a,a->a') + exp_path = ['einsum_path', (1,), (0, 1)] + assert_raises(RuntimeError, np.einsum, *path_test, optimize=exp_path) + assert_raises( + RuntimeError, np.einsum_path, *path_test, optimize=exp_path) + + def test_spaces(self): + # gh-10794 + arr = np.array([[1]]) + for sp in itertools.product(['', ' '], repeat=4): + # no error for any spacing + np.einsum('{}...a{}->{}...a{}'.format(*sp), arr) + +def test_overlap(): + a = np.arange(9, dtype=int).reshape(3, 3) + b = np.arange(9, dtype=int).reshape(3, 3) + d = np.dot(a, b) + # sanity check + c = np.einsum('ij,jk->ik', a, b) + assert_equal(c, d) + # gh-10080, out overlaps one of the operands + c = np.einsum('ij,jk->ik', a, b, out=b) + assert_equal(c, d) + +def test_einsum_chunking_precision(): + """Most einsum operations are reductions and until NumPy 2.3 reductions + never (or almost never?) used the `GROWINNER` mechanism to increase the + inner loop size when no buffers are needed. + Because einsum reductions work roughly: + + def inner(*inputs, out): + accumulate = 0 + for vals in zip(*inputs): + accumulate += prod(vals) + out[0] += accumulate + + Calling the inner-loop more often actually improves accuracy slightly + (same effect as pairwise summation but much less). + Without adding pairwise summation to the inner-loop it seems best to just + not use GROWINNER, a quick tests suggest that is maybe 1% slowdown for + the simplest `einsum("i,i->i", x, x)` case. + + (It is not clear that we should guarantee precision to this extend.) + """ + num = 1_000_000 + value = 1. + np.finfo(np.float64).eps * 8196 + res = np.einsum("i->", np.broadcast_to(np.array(value), num)) / num + + # At with GROWINNER 11 decimals succeed (larger will be less) + assert_almost_equal(res, value, decimal=15) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_errstate.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_errstate.py new file mode 100644 index 0000000000000000000000000000000000000000..f0735a045a4dc37728f36bc374c52f63f7e57eef --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_errstate.py @@ -0,0 +1,131 @@ +import sysconfig + +import pytest + +import numpy as np +from numpy.testing import IS_WASM, assert_raises + +# The floating point emulation on ARM EABI systems lacking a hardware FPU is +# known to be buggy. This is an attempt to identify these hosts. It may not +# catch all possible cases, but it catches the known cases of gh-413 and +# gh-15562. +hosttype = sysconfig.get_config_var('HOST_GNU_TYPE') +arm_softfloat = False if hosttype is None else hosttype.endswith('gnueabi') + +class TestErrstate: + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.skipif(arm_softfloat, + reason='platform/cpu issue with FPU (gh-413,-15562)') + def test_invalid(self): + with np.errstate(all='raise', under='ignore'): + a = -np.arange(3) + # This should work + with np.errstate(invalid='ignore'): + np.sqrt(a) + # While this should fail! + with assert_raises(FloatingPointError): + np.sqrt(a) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.skipif(arm_softfloat, + reason='platform/cpu issue with FPU (gh-15562)') + def test_divide(self): + with np.errstate(all='raise', under='ignore'): + a = -np.arange(3) + # This should work + with np.errstate(divide='ignore'): + a // 0 + # While this should fail! + with assert_raises(FloatingPointError): + a // 0 + # As should this, see gh-15562 + with assert_raises(FloatingPointError): + a // a + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.skipif(arm_softfloat, + reason='platform/cpu issue with FPU (gh-15562)') + def test_errcall(self): + count = 0 + + def foo(*args): + nonlocal count + count += 1 + + olderrcall = np.geterrcall() + with np.errstate(call=foo): + assert np.geterrcall() is foo + with np.errstate(call=None): + assert np.geterrcall() is None + assert np.geterrcall() is olderrcall + assert count == 0 + + with np.errstate(call=foo, invalid="call"): + np.array(np.inf) - np.array(np.inf) + + assert count == 1 + + def test_errstate_decorator(self): + @np.errstate(all='ignore') + def foo(): + a = -np.arange(3) + a // 0 + + foo() + + def test_errstate_enter_once(self): + errstate = np.errstate(invalid="warn") + with errstate: + pass + + # The errstate context cannot be entered twice as that would not be + # thread-safe + with pytest.raises(TypeError, + match="Cannot enter `np.errstate` twice"): + with errstate: + pass + + @pytest.mark.skipif(IS_WASM, reason="wasm doesn't support asyncio") + def test_asyncio_safe(self): + # asyncio may not always work, let's assume its fine if missing + # Pyodide/wasm doesn't support it. If this test makes problems, + # it should just be skipped liberally (or run differently). + asyncio = pytest.importorskip("asyncio") + + @np.errstate(invalid="ignore") + def decorated(): + # Decorated non-async function (it is not safe to decorate an + # async one) + assert np.geterr()["invalid"] == "ignore" + + async def func1(): + decorated() + await asyncio.sleep(0.1) + decorated() + + async def func2(): + with np.errstate(invalid="raise"): + assert np.geterr()["invalid"] == "raise" + await asyncio.sleep(0.125) + assert np.geterr()["invalid"] == "raise" + + # for good sport, a third one with yet another state: + async def func3(): + with np.errstate(invalid="print"): + assert np.geterr()["invalid"] == "print" + await asyncio.sleep(0.11) + assert np.geterr()["invalid"] == "print" + + async def main(): + # simply run all three function multiple times: + await asyncio.gather( + func1(), func2(), func3(), func1(), func2(), func3(), + func1(), func2(), func3(), func1(), func2(), func3()) + + loop = asyncio.new_event_loop() + with np.errstate(invalid="warn"): + asyncio.run(main()) + assert np.geterr()["invalid"] == "warn" + + assert np.geterr()["invalid"] == "warn" # the default + loop.close() diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_extint128.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_extint128.py new file mode 100644 index 0000000000000000000000000000000000000000..6e4d74b81d3907c6dcf096730fa3f5db6e6cb80c --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_extint128.py @@ -0,0 +1,217 @@ +import contextlib +import itertools +import operator + +import pytest + +import numpy as np +import numpy._core._multiarray_tests as mt +from numpy.testing import assert_equal, assert_raises + +INT64_MAX = np.iinfo(np.int64).max +INT64_MIN = np.iinfo(np.int64).min +INT64_MID = 2**32 + +# int128 is not two's complement, the sign bit is separate +INT128_MAX = 2**128 - 1 +INT128_MIN = -INT128_MAX +INT128_MID = 2**64 + +INT64_VALUES = ( + [INT64_MIN + j for j in range(20)] + + [INT64_MAX - j for j in range(20)] + + [INT64_MID + j for j in range(-20, 20)] + + [2 * INT64_MID + j for j in range(-20, 20)] + + [INT64_MID // 2 + j for j in range(-20, 20)] + + list(range(-70, 70)) +) + +INT128_VALUES = ( + [INT128_MIN + j for j in range(20)] + + [INT128_MAX - j for j in range(20)] + + [INT128_MID + j for j in range(-20, 20)] + + [2 * INT128_MID + j for j in range(-20, 20)] + + [INT128_MID // 2 + j for j in range(-20, 20)] + + list(range(-70, 70)) + + [False] # negative zero +) + +INT64_POS_VALUES = [x for x in INT64_VALUES if x > 0] + + +@contextlib.contextmanager +def exc_iter(*args): + """ + Iterate over Cartesian product of *args, and if an exception is raised, + add information of the current iterate. + """ + + value = [None] + + def iterate(): + for v in itertools.product(*args): + value[0] = v + yield v + + try: + yield iterate() + except Exception: + import traceback + msg = f"At: {repr(value[0])!r}\n{traceback.format_exc()}" + raise AssertionError(msg) + + +def test_safe_binop(): + # Test checked arithmetic routines + + ops = [ + (operator.add, 1), + (operator.sub, 2), + (operator.mul, 3) + ] + + with exc_iter(ops, INT64_VALUES, INT64_VALUES) as it: + for xop, a, b in it: + pyop, op = xop + c = pyop(a, b) + + if not (INT64_MIN <= c <= INT64_MAX): + assert_raises(OverflowError, mt.extint_safe_binop, a, b, op) + else: + d = mt.extint_safe_binop(a, b, op) + if c != d: + # assert_equal is slow + assert_equal(d, c) + + +def test_to_128(): + with exc_iter(INT64_VALUES) as it: + for a, in it: + b = mt.extint_to_128(a) + if a != b: + assert_equal(b, a) + + +def test_to_64(): + with exc_iter(INT128_VALUES) as it: + for a, in it: + if not (INT64_MIN <= a <= INT64_MAX): + assert_raises(OverflowError, mt.extint_to_64, a) + else: + b = mt.extint_to_64(a) + if a != b: + assert_equal(b, a) + + +def test_mul_64_64(): + with exc_iter(INT64_VALUES, INT64_VALUES) as it: + for a, b in it: + c = a * b + d = mt.extint_mul_64_64(a, b) + if c != d: + assert_equal(d, c) + + +def test_add_128(): + with exc_iter(INT128_VALUES, INT128_VALUES) as it: + for a, b in it: + c = a + b + if not (INT128_MIN <= c <= INT128_MAX): + assert_raises(OverflowError, mt.extint_add_128, a, b) + else: + d = mt.extint_add_128(a, b) + if c != d: + assert_equal(d, c) + + +def test_sub_128(): + with exc_iter(INT128_VALUES, INT128_VALUES) as it: + for a, b in it: + c = a - b + if not (INT128_MIN <= c <= INT128_MAX): + assert_raises(OverflowError, mt.extint_sub_128, a, b) + else: + d = mt.extint_sub_128(a, b) + if c != d: + assert_equal(d, c) + + +def test_neg_128(): + with exc_iter(INT128_VALUES) as it: + for a, in it: + b = -a + c = mt.extint_neg_128(a) + if b != c: + assert_equal(c, b) + + +def test_shl_128(): + with exc_iter(INT128_VALUES) as it: + for a, in it: + if a < 0: + b = -(((-a) << 1) & (2**128 - 1)) + else: + b = (a << 1) & (2**128 - 1) + c = mt.extint_shl_128(a) + if b != c: + assert_equal(c, b) + + +def test_shr_128(): + with exc_iter(INT128_VALUES) as it: + for a, in it: + if a < 0: + b = -((-a) >> 1) + else: + b = a >> 1 + c = mt.extint_shr_128(a) + if b != c: + assert_equal(c, b) + + +def test_gt_128(): + with exc_iter(INT128_VALUES, INT128_VALUES) as it: + for a, b in it: + c = a > b + d = mt.extint_gt_128(a, b) + if c != d: + assert_equal(d, c) + + +@pytest.mark.slow +def test_divmod_128_64(): + with exc_iter(INT128_VALUES, INT64_POS_VALUES) as it: + for a, b in it: + if a >= 0: + c, cr = divmod(a, b) + else: + c, cr = divmod(-a, b) + c = -c + cr = -cr + + d, dr = mt.extint_divmod_128_64(a, b) + + if c != d or d != dr or b * d + dr != a: + assert_equal(d, c) + assert_equal(dr, cr) + assert_equal(b * d + dr, a) + + +def test_floordiv_128_64(): + with exc_iter(INT128_VALUES, INT64_POS_VALUES) as it: + for a, b in it: + c = a // b + d = mt.extint_floordiv_128_64(a, b) + + if c != d: + assert_equal(d, c) + + +def test_ceildiv_128_64(): + with exc_iter(INT128_VALUES, INT64_POS_VALUES) as it: + for a, b in it: + c = (a + b - 1) // b + d = mt.extint_ceildiv_128_64(a, b) + + if c != d: + assert_equal(d, c) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_finfo.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_finfo.py new file mode 100644 index 0000000000000000000000000000000000000000..5703b8d6a765b575f974497e004953499496589f --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_finfo.py @@ -0,0 +1,86 @@ +import pytest + +import numpy as np +from numpy import exp2, log10 +from numpy._core import numerictypes as ntypes + + +class MachArLike: + """Minimal class to simulate machine arithmetic parameters.""" + def __init__(self, dtype, machep, negep, minexp, maxexp, nmant, iexp): + self.dtype = dtype + self.machep = machep + self.negep = negep + self.minexp = minexp + self.maxexp = maxexp + self.nmant = nmant + self.iexp = iexp + self.eps = exp2(dtype(-nmant)) + self.epsneg = exp2(dtype(negep)) + self.precision = int(-log10(self.eps)) + self.resolution = dtype(10) ** (-self.precision) + + +@pytest.fixture +def float16_ma(): + """Machine arithmetic parameters for float16.""" + f16 = ntypes.float16 + return MachArLike(f16, + machep=-10, + negep=-11, + minexp=-14, + maxexp=16, + nmant=10, + iexp=5) + + +@pytest.fixture +def float32_ma(): + """Machine arithmetic parameters for float32.""" + f32 = ntypes.float32 + return MachArLike(f32, + machep=-23, + negep=-24, + minexp=-126, + maxexp=128, + nmant=23, + iexp=8) + + +@pytest.fixture +def float64_ma(): + """Machine arithmetic parameters for float64.""" + f64 = ntypes.float64 + return MachArLike(f64, + machep=-52, + negep=-53, + minexp=-1022, + maxexp=1024, + nmant=52, + iexp=11) + + +@pytest.mark.parametrize("dtype,ma_fixture", [ + (np.half, "float16_ma"), + (np.float32, "float32_ma"), + (np.float64, "float64_ma"), +]) +@pytest.mark.parametrize("prop", [ + 'machep', 'negep', 'minexp', 'maxexp', 'nmant', 'iexp', + 'eps', 'epsneg', 'precision', 'resolution' +]) +@pytest.mark.thread_unsafe( + reason="complex fixture setup is thread-unsafe (pytest-dev/pytest#13768.)" +) +def test_finfo_properties(dtype, ma_fixture, prop, request): + """Test that finfo properties match expected machine arithmetic values.""" + ma = request.getfixturevalue(ma_fixture) + finfo = np.finfo(dtype) + + actual = getattr(finfo, prop) + expected = getattr(ma, prop) + + assert actual == expected, ( + f"finfo({dtype}) property '{prop}' mismatch: " + f"expected {expected}, got {actual}" + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_function_base.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_function_base.py new file mode 100644 index 0000000000000000000000000000000000000000..c6e10397b3ff9550ffd8f727a49c3c25dd5bc20e --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_function_base.py @@ -0,0 +1,504 @@ +import platform +import sys + +import pytest + +import numpy as np +from numpy import ( + arange, + array, + dtype, + errstate, + geomspace, + isnan, + linspace, + logspace, + ndarray, + nextafter, + sqrt, + stack, +) +from numpy._core import sctypes +from numpy._core.function_base import add_newdoc +from numpy.testing import ( + IS_PYPY, + assert_, + assert_allclose, + assert_array_equal, + assert_equal, + assert_raises, +) + + +def _is_armhf(): + # Check if the current platform is ARMHF (32-bit ARM architecture) + architecture = platform.architecture() + return platform.machine().startswith('arm') and architecture[0] == '32bit' + +class PhysicalQuantity(float): + def __new__(cls, value): + return float.__new__(cls, value) + + def __add__(self, x): + assert_(isinstance(x, PhysicalQuantity)) + return PhysicalQuantity(float(x) + float(self)) + __radd__ = __add__ + + def __sub__(self, x): + assert_(isinstance(x, PhysicalQuantity)) + return PhysicalQuantity(float(self) - float(x)) + + def __rsub__(self, x): + assert_(isinstance(x, PhysicalQuantity)) + return PhysicalQuantity(float(x) - float(self)) + + def __mul__(self, x): + return PhysicalQuantity(float(x) * float(self)) + __rmul__ = __mul__ + + def __truediv__(self, x): + return PhysicalQuantity(float(self) / float(x)) + + def __rtruediv__(self, x): + return PhysicalQuantity(float(x) / float(self)) + + +class PhysicalQuantity2(ndarray): + __array_priority__ = 10 + + +class TestLogspace: + + def test_basic(self): + y = logspace(0, 6) + assert_(len(y) == 50) + y = logspace(0, 6, num=100) + assert_(y[-1] == 10 ** 6) + y = logspace(0, 6, endpoint=False) + assert_(y[-1] < 10 ** 6) + y = logspace(0, 6, num=7) + assert_array_equal(y, [1, 10, 100, 1e3, 1e4, 1e5, 1e6]) + + def test_start_stop_array(self): + start = array([0., 1.]) + stop = array([6., 7.]) + t1 = logspace(start, stop, 6) + t2 = stack([logspace(_start, _stop, 6) + for _start, _stop in zip(start, stop)], axis=1) + assert_equal(t1, t2) + t3 = logspace(start, stop[0], 6) + t4 = stack([logspace(_start, stop[0], 6) + for _start in start], axis=1) + assert_equal(t3, t4) + t5 = logspace(start, stop, 6, axis=-1) + assert_equal(t5, t2.T) + + @pytest.mark.parametrize("axis", [0, 1, -1]) + def test_base_array(self, axis: int): + start = 1 + stop = 2 + num = 6 + base = array([1, 2]) + t1 = logspace(start, stop, num=num, base=base, axis=axis) + t2 = stack( + [logspace(start, stop, num=num, base=_base) for _base in base], + axis=(axis + 1) % t1.ndim, + ) + assert_equal(t1, t2) + + @pytest.mark.parametrize("axis", [0, 1, -1]) + def test_stop_base_array(self, axis: int): + start = 1 + stop = array([2, 3]) + num = 6 + base = array([1, 2]) + t1 = logspace(start, stop, num=num, base=base, axis=axis) + t2 = stack( + [logspace(start, _stop, num=num, base=_base) + for _stop, _base in zip(stop, base)], + axis=(axis + 1) % t1.ndim, + ) + assert_equal(t1, t2) + + def test_dtype(self): + y = logspace(0, 6, dtype='float32') + assert_equal(y.dtype, dtype('float32')) + y = logspace(0, 6, dtype='float64') + assert_equal(y.dtype, dtype('float64')) + y = logspace(0, 6, dtype='int32') + assert_equal(y.dtype, dtype('int32')) + + def test_physical_quantities(self): + a = PhysicalQuantity(1.0) + b = PhysicalQuantity(5.0) + assert_equal(logspace(a, b), logspace(1.0, 5.0)) + + def test_subclass(self): + a = array(1).view(PhysicalQuantity2) + b = array(7).view(PhysicalQuantity2) + ls = logspace(a, b) + assert type(ls) is PhysicalQuantity2 + assert_equal(ls, logspace(1.0, 7.0)) + ls = logspace(a, b, 1) + assert type(ls) is PhysicalQuantity2 + assert_equal(ls, logspace(1.0, 7.0, 1)) + + +class TestGeomspace: + + def test_basic(self): + y = geomspace(1, 1e6) + assert_(len(y) == 50) + y = geomspace(1, 1e6, num=100) + assert_(y[-1] == 10 ** 6) + y = geomspace(1, 1e6, endpoint=False) + assert_(y[-1] < 10 ** 6) + y = geomspace(1, 1e6, num=7) + assert_array_equal(y, [1, 10, 100, 1e3, 1e4, 1e5, 1e6]) + + y = geomspace(8, 2, num=3) + assert_allclose(y, [8, 4, 2]) + assert_array_equal(y.imag, 0) + + y = geomspace(-1, -100, num=3) + assert_array_equal(y, [-1, -10, -100]) + assert_array_equal(y.imag, 0) + + y = geomspace(-100, -1, num=3) + assert_array_equal(y, [-100, -10, -1]) + assert_array_equal(y.imag, 0) + + def test_boundaries_match_start_and_stop_exactly(self): + # make sure that the boundaries of the returned array exactly + # equal 'start' and 'stop' - this isn't obvious because + # np.exp(np.log(x)) isn't necessarily exactly equal to x + start = 0.3 + stop = 20.3 + + y = geomspace(start, stop, num=1) + assert_equal(y[0], start) + + y = geomspace(start, stop, num=1, endpoint=False) + assert_equal(y[0], start) + + y = geomspace(start, stop, num=3) + assert_equal(y[0], start) + assert_equal(y[-1], stop) + + y = geomspace(start, stop, num=3, endpoint=False) + assert_equal(y[0], start) + + def test_nan_interior(self): + with errstate(invalid='ignore'): + y = geomspace(-3, 3, num=4) + + assert_equal(y[0], -3.0) + assert_(isnan(y[1:-1]).all()) + assert_equal(y[3], 3.0) + + with errstate(invalid='ignore'): + y = geomspace(-3, 3, num=4, endpoint=False) + + assert_equal(y[0], -3.0) + assert_(isnan(y[1:]).all()) + + def test_complex(self): + # Purely imaginary + y = geomspace(1j, 16j, num=5) + assert_allclose(y, [1j, 2j, 4j, 8j, 16j]) + assert_array_equal(y.real, 0) + + y = geomspace(-4j, -324j, num=5) + assert_allclose(y, [-4j, -12j, -36j, -108j, -324j]) + assert_array_equal(y.real, 0) + + y = geomspace(1 + 1j, 1000 + 1000j, num=4) + assert_allclose(y, [1 + 1j, 10 + 10j, 100 + 100j, 1000 + 1000j]) + + y = geomspace(-1 + 1j, -1000 + 1000j, num=4) + assert_allclose(y, [-1 + 1j, -10 + 10j, -100 + 100j, -1000 + 1000j]) + + # Logarithmic spirals + y = geomspace(-1, 1, num=3, dtype=complex) + assert_allclose(y, [-1, 1j, +1]) + + y = geomspace(0 + 3j, -3 + 0j, 3) + assert_allclose(y, [0 + 3j, -3 / sqrt(2) + 3j / sqrt(2), -3 + 0j]) + y = geomspace(0 + 3j, 3 + 0j, 3) + assert_allclose(y, [0 + 3j, 3 / sqrt(2) + 3j / sqrt(2), 3 + 0j]) + y = geomspace(-3 + 0j, 0 - 3j, 3) + assert_allclose(y, [-3 + 0j, -3 / sqrt(2) - 3j / sqrt(2), 0 - 3j]) + y = geomspace(0 + 3j, -3 + 0j, 3) + assert_allclose(y, [0 + 3j, -3 / sqrt(2) + 3j / sqrt(2), -3 + 0j]) + y = geomspace(-2 - 3j, 5 + 7j, 7) + assert_allclose(y, [-2 - 3j, -0.29058977 - 4.15771027j, + 2.08885354 - 4.34146838j, 4.58345529 - 3.16355218j, + 6.41401745 - 0.55233457j, 6.75707386 + 3.11795092j, + 5 + 7j]) + + # Type promotion should prevent the -5 from becoming a NaN + y = geomspace(3j, -5, 2) + assert_allclose(y, [3j, -5]) + y = geomspace(-5, 3j, 2) + assert_allclose(y, [-5, 3j]) + + def test_complex_shortest_path(self): + # test the shortest logarithmic spiral is used, see gh-25644 + x = 1.2 + 3.4j + y = np.exp(1j * (np.pi - .1)) * x + z = np.geomspace(x, y, 5) + expected = np.array([1.2 + 3.4j, -1.47384 + 3.2905616j, + -3.33577588 + 1.36842949j, -3.36011056 - 1.30753855j, + -1.53343861 - 3.26321406j]) + np.testing.assert_array_almost_equal(z, expected) + + def test_dtype(self): + y = geomspace(1, 1e6, dtype='float32') + assert_equal(y.dtype, dtype('float32')) + y = geomspace(1, 1e6, dtype='float64') + assert_equal(y.dtype, dtype('float64')) + y = geomspace(1, 1e6, dtype='int32') + assert_equal(y.dtype, dtype('int32')) + + # Native types + y = geomspace(1, 1e6, dtype=float) + assert_equal(y.dtype, dtype('float64')) + y = geomspace(1, 1e6, dtype=complex) + assert_equal(y.dtype, dtype('complex128')) + + def test_start_stop_array_scalar(self): + lim1 = array([120, 100], dtype="int8") + lim2 = array([-120, -100], dtype="int8") + lim3 = array([1200, 1000], dtype="uint16") + t1 = geomspace(lim1[0], lim1[1], 5) + t2 = geomspace(lim2[0], lim2[1], 5) + t3 = geomspace(lim3[0], lim3[1], 5) + t4 = geomspace(120.0, 100.0, 5) + t5 = geomspace(-120.0, -100.0, 5) + t6 = geomspace(1200.0, 1000.0, 5) + + # t3 uses float32, t6 uses float64 + assert_allclose(t1, t4, rtol=1e-2) + assert_allclose(t2, t5, rtol=1e-2) + assert_allclose(t3, t6, rtol=1e-5) + + def test_start_stop_array(self): + # Try to use all special cases. + start = array([1.e0, 32., 1j, -4j, 1 + 1j, -1]) + stop = array([1.e4, 2., 16j, -324j, 10000 + 10000j, 1]) + t1 = geomspace(start, stop, 5) + t2 = stack([geomspace(_start, _stop, 5) + for _start, _stop in zip(start, stop)], axis=1) + assert_equal(t1, t2) + t3 = geomspace(start, stop[0], 5) + t4 = stack([geomspace(_start, stop[0], 5) + for _start in start], axis=1) + assert_equal(t3, t4) + t5 = geomspace(start, stop, 5, axis=-1) + assert_equal(t5, t2.T) + + def test_physical_quantities(self): + a = PhysicalQuantity(1.0) + b = PhysicalQuantity(5.0) + assert_equal(geomspace(a, b), geomspace(1.0, 5.0)) + + def test_subclass(self): + a = array(1).view(PhysicalQuantity2) + b = array(7).view(PhysicalQuantity2) + gs = geomspace(a, b) + assert type(gs) is PhysicalQuantity2 + assert_equal(gs, geomspace(1.0, 7.0)) + gs = geomspace(a, b, 1) + assert type(gs) is PhysicalQuantity2 + assert_equal(gs, geomspace(1.0, 7.0, 1)) + + def test_bounds(self): + assert_raises(ValueError, geomspace, 0, 10) + assert_raises(ValueError, geomspace, 10, 0) + assert_raises(ValueError, geomspace, 0, 0) + + +class TestLinspace: + + def test_basic(self): + y = linspace(0, 10) + assert_(len(y) == 50) + y = linspace(2, 10, num=100) + assert_(y[-1] == 10) + y = linspace(2, 10, endpoint=False) + assert_(y[-1] < 10) + assert_raises(ValueError, linspace, 0, 10, num=-1) + + def test_corner(self): + y = list(linspace(0, 1, 1)) + assert_(y == [0.0], y) + assert_raises(TypeError, linspace, 0, 1, num=2.5) + + def test_type(self): + t1 = linspace(0, 1, 0).dtype + t2 = linspace(0, 1, 1).dtype + t3 = linspace(0, 1, 2).dtype + assert_equal(t1, t2) + assert_equal(t2, t3) + + def test_dtype(self): + y = linspace(0, 6, dtype='float32') + assert_equal(y.dtype, dtype('float32')) + y = linspace(0, 6, dtype='float64') + assert_equal(y.dtype, dtype('float64')) + y = linspace(0, 6, dtype='int32') + assert_equal(y.dtype, dtype('int32')) + + def test_start_stop_array_scalar(self): + lim1 = array([-120, 100], dtype="int8") + lim2 = array([120, -100], dtype="int8") + lim3 = array([1200, 1000], dtype="uint16") + t1 = linspace(lim1[0], lim1[1], 5) + t2 = linspace(lim2[0], lim2[1], 5) + t3 = linspace(lim3[0], lim3[1], 5) + t4 = linspace(-120.0, 100.0, 5) + t5 = linspace(120.0, -100.0, 5) + t6 = linspace(1200.0, 1000.0, 5) + assert_equal(t1, t4) + assert_equal(t2, t5) + assert_equal(t3, t6) + + def test_start_stop_array(self): + start = array([-120, 120], dtype="int8") + stop = array([100, -100], dtype="int8") + t1 = linspace(start, stop, 5) + t2 = stack([linspace(_start, _stop, 5) + for _start, _stop in zip(start, stop)], axis=1) + assert_equal(t1, t2) + t3 = linspace(start, stop[0], 5) + t4 = stack([linspace(_start, stop[0], 5) + for _start in start], axis=1) + assert_equal(t3, t4) + t5 = linspace(start, stop, 5, axis=-1) + assert_equal(t5, t2.T) + + def test_complex(self): + lim1 = linspace(1 + 2j, 3 + 4j, 5) + t1 = array([1.0 + 2.j, 1.5 + 2.5j, 2.0 + 3j, 2.5 + 3.5j, 3.0 + 4j]) + lim2 = linspace(1j, 10, 5) + t2 = array([0.0 + 1.j, 2.5 + 0.75j, 5.0 + 0.5j, 7.5 + 0.25j, 10.0 + 0j]) + assert_equal(lim1, t1) + assert_equal(lim2, t2) + + def test_physical_quantities(self): + a = PhysicalQuantity(0.0) + b = PhysicalQuantity(1.0) + assert_equal(linspace(a, b), linspace(0.0, 1.0)) + + def test_subclass(self): + a = array(0).view(PhysicalQuantity2) + b = array(1).view(PhysicalQuantity2) + ls = linspace(a, b) + assert type(ls) is PhysicalQuantity2 + assert_equal(ls, linspace(0.0, 1.0)) + ls = linspace(a, b, 1) + assert type(ls) is PhysicalQuantity2 + assert_equal(ls, linspace(0.0, 1.0, 1)) + + def test_array_interface(self): + # Regression test for https://github.com/numpy/numpy/pull/6659 + # Ensure that start/stop can be objects that implement + # __array_interface__ and are convertible to numeric scalars + + class Arrayish: + """ + A generic object that supports the __array_interface__ and hence + can in principle be converted to a numeric scalar, but is not + otherwise recognized as numeric, but also happens to support + multiplication by floats. + + Data should be an object that implements the buffer interface, + and contains at least 4 bytes. + """ + + def __init__(self, data): + self._data = data + + @property + def __array_interface__(self): + return {'shape': (), 'typestr': ' 250) + assert_(len(np.lib._index_tricks_impl.mgrid.__doc__) > 300) + + @pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO") + def test_errors_are_ignored(self): + prev_doc = np._core.flatiter.index.__doc__ + # nothing changed, but error ignored, this should probably + # give a warning (or even error) in the future. + add_newdoc("numpy._core", "flatiter", ("index", "bad docstring")) + assert prev_doc == np._core.flatiter.index.__doc__ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_getlimits.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_getlimits.py new file mode 100644 index 0000000000000000000000000000000000000000..4e911b89e89fa94b517ade896b285e6627c2f997 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_getlimits.py @@ -0,0 +1,171 @@ +""" Test functions for limits module. + +""" +import types +import warnings + +import pytest + +import numpy as np +from numpy import double, half, longdouble, single +from numpy._core import finfo, iinfo +from numpy.testing import assert_, assert_equal, assert_raises + +################################################## + +class TestPythonFloat: + def test_singleton(self): + ftype = finfo(float) + ftype2 = finfo(float) + assert_equal(id(ftype), id(ftype2)) + +class TestHalf: + def test_singleton(self): + ftype = finfo(half) + ftype2 = finfo(half) + assert_equal(id(ftype), id(ftype2)) + +class TestSingle: + def test_singleton(self): + ftype = finfo(single) + ftype2 = finfo(single) + assert_equal(id(ftype), id(ftype2)) + +class TestDouble: + def test_singleton(self): + ftype = finfo(double) + ftype2 = finfo(double) + assert_equal(id(ftype), id(ftype2)) + +class TestLongdouble: + def test_singleton(self): + ftype = finfo(longdouble) + ftype2 = finfo(longdouble) + assert_equal(id(ftype), id(ftype2)) + +def assert_finfo_equal(f1, f2): + # assert two finfo instances have the same attributes + for attr in ('bits', 'eps', 'epsneg', 'iexp', 'machep', + 'max', 'maxexp', 'min', 'minexp', 'negep', 'nexp', + 'nmant', 'precision', 'resolution', 'tiny', + 'smallest_normal', 'smallest_subnormal'): + assert_equal(getattr(f1, attr), getattr(f2, attr), + f'finfo instances {f1} and {f2} differ on {attr}') + +def assert_iinfo_equal(i1, i2): + # assert two iinfo instances have the same attributes + for attr in ('bits', 'min', 'max'): + assert_equal(getattr(i1, attr), getattr(i2, attr), + f'iinfo instances {i1} and {i2} differ on {attr}') + +class TestFinfo: + def test_basic(self): + dts = list(zip(['f2', 'f4', 'f8', 'c8', 'c16'], + [np.float16, np.float32, np.float64, np.complex64, + np.complex128])) + for dt1, dt2 in dts: + assert_finfo_equal(finfo(dt1), finfo(dt2)) + + assert_raises(ValueError, finfo, 'i4') + + def test_regression_gh23108(self): + # np.float32(1.0) and np.float64(1.0) have the same hash and are + # equal under the == operator + f1 = np.finfo(np.float32(1.0)) + f2 = np.finfo(np.float64(1.0)) + assert f1 != f2 + + def test_regression_gh23867(self): + class NonHashableWithDtype: + __hash__ = None + dtype = np.dtype('float32') + + x = NonHashableWithDtype() + assert np.finfo(x) == np.finfo(x.dtype) + + +class TestIinfo: + def test_basic(self): + dts = list(zip(['i1', 'i2', 'i4', 'i8', + 'u1', 'u2', 'u4', 'u8'], + [np.int8, np.int16, np.int32, np.int64, + np.uint8, np.uint16, np.uint32, np.uint64])) + for dt1, dt2 in dts: + assert_iinfo_equal(iinfo(dt1), iinfo(dt2)) + + assert_raises(ValueError, iinfo, 'f4') + + def test_unsigned_max(self): + types = np._core.sctypes['uint'] + for T in types: + with np.errstate(over="ignore"): + max_calculated = T(0) - T(1) + assert_equal(iinfo(T).max, max_calculated) + +class TestRepr: + def test_iinfo_repr(self): + expected = "iinfo(min=-32768, max=32767, dtype=int16)" + assert_equal(repr(np.iinfo(np.int16)), expected) + + def test_finfo_repr(self): + expected = "finfo(resolution=1e-06, min=-3.4028235e+38,"\ + " max=3.4028235e+38, dtype=float32)" + assert_equal(repr(np.finfo(np.float32)), expected) + + +def test_instances(): + # Test the finfo and iinfo results on numeric instances agree with + # the results on the corresponding types + + for c in [int, np.int16, np.int32, np.int64]: + class_iinfo = iinfo(c) + instance_iinfo = iinfo(c(12)) + + assert_iinfo_equal(class_iinfo, instance_iinfo) + + for c in [float, np.float16, np.float32, np.float64]: + class_finfo = finfo(c) + instance_finfo = finfo(c(1.2)) + assert_finfo_equal(class_finfo, instance_finfo) + + with pytest.raises(ValueError): + iinfo(10.) + + with pytest.raises(ValueError): + iinfo('hi') + + with pytest.raises(ValueError): + finfo(np.int64(1)) + + +def test_subnormal_warning(): + """Test that the subnormal is zero warning is not being raised.""" + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter('always') + # Test for common float types + for dtype in [np.float16, np.float32, np.float64]: + f = finfo(dtype) + _ = f.smallest_subnormal + # Also test longdouble + with np.errstate(all='ignore'): + fld = finfo(np.longdouble) + _ = fld.smallest_subnormal + # Check no warnings were raised + assert len(w) == 0 + + +def test_plausible_finfo(): + # Assert that finfo returns reasonable results for all types + for ftype in np._core.sctypes['float'] + np._core.sctypes['complex']: + info = np.finfo(ftype) + assert_(info.nmant > 1) + assert_(info.minexp < -1) + assert_(info.maxexp > 1) + + +class TestRuntimeSubscriptable: + def test_finfo_generic(self): + assert isinstance(np.finfo[np.float64], types.GenericAlias) + + def test_iinfo_generic(self): + assert isinstance(np.iinfo[np.int_], types.GenericAlias) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_half.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_half.py new file mode 100644 index 0000000000000000000000000000000000000000..3ced5b466a44a0a01a4750c771ef43df8073e102 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_half.py @@ -0,0 +1,593 @@ +import platform + +import pytest + +import numpy as np +from numpy import float16, float32, float64, uint16 +from numpy.testing import IS_WASM, assert_, assert_equal + + +def assert_raises_fpe(strmatch, callable, *args, **kwargs): + try: + callable(*args, **kwargs) + except FloatingPointError as exc: + assert_(str(exc).find(strmatch) >= 0, + f"Did not raise floating point {strmatch} error") + else: + assert_(False, + f"Did not raise floating point {strmatch} error") + +class TestHalf: + def _create_arrays_all(self): + # An array of all possible float16 values + all_f16 = np.arange(0x10000, dtype=uint16) + all_f16 = all_f16.view(float16) + + # NaN value can cause an invalid FP exception if HW is being used + with np.errstate(invalid='ignore'): + all_f32 = np.array(all_f16, dtype=float32) + all_f64 = np.array(all_f16, dtype=float64) + return all_f16, all_f32, all_f64 + + def _create_arrays_nonan(self): + # An array of all non-NaN float16 values, in sorted order + nonan_f16 = np.concatenate( + (np.arange(0xfc00, 0x7fff, -1, dtype=uint16), + np.arange(0x0000, 0x7c01, 1, dtype=uint16))) + nonan_f16 = nonan_f16.view(float16) + nonan_f32 = np.array(nonan_f16, dtype=float32) + nonan_f64 = np.array(nonan_f16, dtype=float64) + return nonan_f16, nonan_f32, nonan_f64 + + def _create_arrays_finite(self): + nonan_f16, nonan_f32, nonan_f64 = self._create_arrays_nonan() + finite_f16 = nonan_f16[1:-1] + finite_f32 = nonan_f32[1:-1] + finite_f64 = nonan_f64[1:-1] + return finite_f16, finite_f32, finite_f64 + + def test_half_conversions(self): + """Checks that all 16-bit values survive conversion + to/from 32-bit and 64-bit float""" + # Because the underlying routines preserve the NaN bits, every + # value is preserved when converting to/from other floats. + all_f16, all_f32, all_f64 = self._create_arrays_all() + nonan_f16, _, _ = self._create_arrays_nonan() + + # Convert from float32 back to float16 + with np.errstate(invalid='ignore'): + b = np.array(all_f32, dtype=float16) + # avoid testing NaNs due to differing bit patterns in Q/S NaNs + b_nn = b == b + assert_equal(all_f16[b_nn].view(dtype=uint16), + b[b_nn].view(dtype=uint16)) + + # Convert from float64 back to float16 + with np.errstate(invalid='ignore'): + b = np.array(all_f64, dtype=float16) + b_nn = b == b + assert_equal(all_f16[b_nn].view(dtype=uint16), + b[b_nn].view(dtype=uint16)) + + # Convert float16 to longdouble and back + # This doesn't necessarily preserve the extra NaN bits, + # so exclude NaNs. + a_ld = np.array(nonan_f16, dtype=np.longdouble) + b = np.array(a_ld, dtype=float16) + assert_equal(nonan_f16.view(dtype=uint16), + b.view(dtype=uint16)) + + # Check the range for which all integers can be represented + i_int = np.arange(-2048, 2049) + i_f16 = np.array(i_int, dtype=float16) + j = np.array(i_f16, dtype=int) + assert_equal(i_int, j) + + @pytest.mark.parametrize("string_dt", ["S", "U"]) + def test_half_conversion_to_string(self, string_dt): + # Currently uses S/U32 (which is sufficient for float32) + expected_dt = np.dtype(f"{string_dt}32") + assert np.promote_types(np.float16, string_dt) == expected_dt + assert np.promote_types(string_dt, np.float16) == expected_dt + + arr = np.ones(3, dtype=np.float16).astype(string_dt) + assert arr.dtype == expected_dt + + @pytest.mark.parametrize("dtype", ["S", "U", object]) + def test_to_half_cast_error(self, dtype): + arr = np.array(["3M"], dtype=dtype) + with pytest.raises(ValueError): + arr.astype(np.float16) + + arr = np.array(["23490349034"], dtype=dtype) + with np.errstate(all="warn"): + with pytest.warns(RuntimeWarning): + arr.astype(np.float16) + + with np.errstate(all="raise"): + with pytest.raises(FloatingPointError): + arr.astype(np.float16) + + @pytest.mark.parametrize("string_dt", ["S", "U"]) + def test_half_conversion_from_string(self, string_dt): + string = np.array("3.1416", dtype=string_dt) + assert string.astype(np.float16) == np.array(3.1416, dtype=np.float16) + + @pytest.mark.parametrize("offset", [None, "up", "down"]) + @pytest.mark.parametrize("shift", [None, "up", "down"]) + @pytest.mark.parametrize("float_t", [np.float32, np.float64]) + def test_half_conversion_rounding(self, float_t, shift, offset): + # Assumes that round to even is used during casting. + max_pattern = np.float16(np.finfo(np.float16).max).view(np.uint16) + + # Test all (positive) finite numbers, denormals are most interesting + # however: + f16s_patterns = np.arange(0, max_pattern + 1, dtype=np.uint16) + f16s_float = f16s_patterns.view(np.float16).astype(float_t) + + # Shift the values by half a bit up or a down (or do not shift), + if shift == "up": + f16s_float = 0.5 * (f16s_float[:-1] + f16s_float[1:])[1:] + elif shift == "down": + f16s_float = 0.5 * (f16s_float[:-1] + f16s_float[1:])[:-1] + else: + f16s_float = f16s_float[1:-1] + + # Increase the float by a minimal value: + if offset == "up": + f16s_float = np.nextafter(f16s_float, float_t(np.inf)) + elif offset == "down": + f16s_float = np.nextafter(f16s_float, float_t(-np.inf)) + + # Convert back to float16 and its bit pattern: + res_patterns = f16s_float.astype(np.float16).view(np.uint16) + + # The above calculation tries the original values, or the exact + # midpoints between the float16 values. It then further offsets them + # by as little as possible. If no offset occurs, "round to even" + # logic will be necessary, an arbitrarily small offset should cause + # normal up/down rounding always. + + # Calculate the expected pattern: + cmp_patterns = f16s_patterns[1:-1].copy() + + if shift == "down" and offset != "up": + shift_pattern = -1 + elif shift == "up" and offset != "down": + shift_pattern = 1 + else: + # There cannot be a shift, either shift is None, so all rounding + # will go back to original, or shift is reduced by offset too much. + shift_pattern = 0 + + # If rounding occurs, is it normal rounding or round to even? + if offset is None: + # Round to even occurs, modify only non-even, cast to allow + (-1) + cmp_patterns[0::2].view(np.int16)[...] += shift_pattern + else: + cmp_patterns.view(np.int16)[...] += shift_pattern + + assert_equal(res_patterns, cmp_patterns) + + @pytest.mark.parametrize(["float_t", "uint_t", "bits"], + [(np.float32, np.uint32, 23), + (np.float64, np.uint64, 52)]) + def test_half_conversion_denormal_round_even(self, float_t, uint_t, bits): + # Test specifically that all bits are considered when deciding + # whether round to even should occur (i.e. no bits are lost at the + # end. Compare also gh-12721. The most bits can get lost for the + # smallest denormal: + smallest_value = np.uint16(1).view(np.float16).astype(float_t) + assert smallest_value == 2**-24 + + # Will be rounded to zero based on round to even rule: + rounded_to_zero = smallest_value / float_t(2) + assert rounded_to_zero.astype(np.float16) == 0 + + # The significand will be all 0 for the float_t, test that we do not + # lose the lower ones of these: + for i in range(bits): + # slightly increasing the value should make it round up: + larger_pattern = rounded_to_zero.view(uint_t) | uint_t(1 << i) + larger_value = larger_pattern.view(float_t) + assert larger_value.astype(np.float16) == smallest_value + + def test_nans_infs(self): + all_f16, all_f32, _ = self._create_arrays_all() + with np.errstate(all='ignore'): + # Check some of the ufuncs + assert_equal(np.isnan(all_f16), np.isnan(all_f32)) + assert_equal(np.isinf(all_f16), np.isinf(all_f32)) + assert_equal(np.isfinite(all_f16), np.isfinite(all_f32)) + assert_equal(np.signbit(all_f16), np.signbit(all_f32)) + assert_equal(np.spacing(float16(65504)), np.inf) + + # Check comparisons of all values with NaN + nan = float16(np.nan) + + assert_(not (all_f16 == nan).any()) + assert_(not (nan == all_f16).any()) + + assert_((all_f16 != nan).all()) + assert_((nan != all_f16).all()) + + assert_(not (all_f16 < nan).any()) + assert_(not (nan < all_f16).any()) + + assert_(not (all_f16 <= nan).any()) + assert_(not (nan <= all_f16).any()) + + assert_(not (all_f16 > nan).any()) + assert_(not (nan > all_f16).any()) + + assert_(not (all_f16 >= nan).any()) + assert_(not (nan >= all_f16).any()) + + def test_half_values(self): + """Confirms a small number of known half values""" + a = np.array([1.0, -1.0, + 2.0, -2.0, + 0.0999755859375, 0.333251953125, # 1/10, 1/3 + 65504, -65504, # Maximum magnitude + 2.0**(-14), -2.0**(-14), # Minimum normal + 2.0**(-24), -2.0**(-24), # Minimum subnormal + 0, -1 / 1e1000, # Signed zeros + np.inf, -np.inf]) + b = np.array([0x3c00, 0xbc00, + 0x4000, 0xc000, + 0x2e66, 0x3555, + 0x7bff, 0xfbff, + 0x0400, 0x8400, + 0x0001, 0x8001, + 0x0000, 0x8000, + 0x7c00, 0xfc00], dtype=uint16) + b = b.view(dtype=float16) + assert_equal(a, b) + + def test_half_rounding(self): + """Checks that rounding when converting to half is correct""" + a = np.array([2.0**-25 + 2.0**-35, # Rounds to minimum subnormal + 2.0**-25, # Underflows to zero (nearest even mode) + 2.0**-26, # Underflows to zero + 1.0 + 2.0**-11 + 2.0**-16, # rounds to 1.0+2**(-10) + 1.0 + 2.0**-11, # rounds to 1.0 (nearest even mode) + 1.0 + 2.0**-12, # rounds to 1.0 + 65519, # rounds to 65504 + 65520], # rounds to inf + dtype=float64) + rounded = [2.0**-24, + 0.0, + 0.0, + 1.0 + 2.0**(-10), + 1.0, + 1.0, + 65504, + np.inf] + + # Check float64->float16 rounding + with np.errstate(over="ignore"): + b = np.array(a, dtype=float16) + assert_equal(b, rounded) + + # Check float32->float16 rounding + a = np.array(a, dtype=float32) + with np.errstate(over="ignore"): + b = np.array(a, dtype=float16) + assert_equal(b, rounded) + + def test_half_correctness(self): + """Take every finite float16, and check the casting functions with + a manual conversion.""" + finite_f16, finite_f32, finite_f64 = self._create_arrays_finite() + + # Create an array of all finite float16s + a_bits = finite_f16.view(dtype=uint16) + + # Convert to 64-bit float manually + a_sgn = (-1.0)**((a_bits & 0x8000) >> 15) + a_exp = np.array((a_bits & 0x7c00) >> 10, dtype=np.int32) - 15 + a_man = (a_bits & 0x03ff) * 2.0**(-10) + # Implicit bit of normalized floats + a_man[a_exp != -15] += 1 + # Denormalized exponent is -14 + a_exp[a_exp == -15] = -14 + + a_manual = a_sgn * a_man * 2.0**a_exp + + a32_fail = np.nonzero(finite_f32 != a_manual)[0] + if len(a32_fail) != 0: + bad_index = a32_fail[0] + assert_equal(finite_f32, a_manual, + "First non-equal is half value 0x%x -> %g != %g" % + (a_bits[bad_index], + finite_f32[bad_index], + a_manual[bad_index])) + + a64_fail = np.nonzero(finite_f64 != a_manual)[0] + if len(a64_fail) != 0: + bad_index = a64_fail[0] + assert_equal(finite_f64, a_manual, + "First non-equal is half value 0x%x -> %g != %g" % + (a_bits[bad_index], + finite_f64[bad_index], + a_manual[bad_index])) + + def test_half_ordering(self): + """Make sure comparisons are working right""" + nonan_f16, _, _ = self._create_arrays_nonan() + + # All non-NaN float16 values in reverse order + a = nonan_f16[::-1].copy() + + # 32-bit float copy + b = np.array(a, dtype=float32) + + # Should sort the same + a.sort() + b.sort() + assert_equal(a, b) + + # Comparisons should work + assert_((a[:-1] <= a[1:]).all()) + assert_(not (a[:-1] > a[1:]).any()) + assert_((a[1:] >= a[:-1]).all()) + assert_(not (a[1:] < a[:-1]).any()) + # All != except for +/-0 + assert_equal(np.nonzero(a[:-1] < a[1:])[0].size, a.size - 2) + assert_equal(np.nonzero(a[1:] > a[:-1])[0].size, a.size - 2) + + def test_half_funcs(self): + """Test the various ArrFuncs""" + + # fill + assert_equal(np.arange(10, dtype=float16), + np.arange(10, dtype=float32)) + + # fillwithscalar + a = np.zeros((5,), dtype=float16) + a.fill(1) + assert_equal(a, np.ones((5,), dtype=float16)) + + # nonzero and copyswap + a = np.array([0, 0, -1, -1 / 1e20, 0, 2.0**-24, 7.629e-6], dtype=float16) + assert_equal(a.nonzero()[0], + [2, 5, 6]) + a = a.byteswap() + a = a.view(a.dtype.newbyteorder()) + assert_equal(a.nonzero()[0], + [2, 5, 6]) + + # dot + a = np.arange(0, 10, 0.5, dtype=float16) + b = np.ones((20,), dtype=float16) + assert_equal(np.dot(a, b), + 95) + + # argmax + a = np.array([0, -np.inf, -2, 0.5, 12.55, 7.3, 2.1, 12.4], dtype=float16) + assert_equal(a.argmax(), + 4) + a = np.array([0, -np.inf, -2, np.inf, 12.55, np.nan, 2.1, 12.4], dtype=float16) + assert_equal(a.argmax(), + 5) + + # getitem + a = np.arange(10, dtype=float16) + for i in range(10): + assert_equal(a.item(i), i) + + def test_spacing_nextafter(self): + """Test np.spacing and np.nextafter""" + # All non-negative finite #'s + a = np.arange(0x7c00, dtype=uint16) + hinf = np.array((np.inf,), dtype=float16) + hnan = np.array((np.nan,), dtype=float16) + a_f16 = a.view(dtype=float16) + + assert_equal(np.spacing(a_f16[:-1]), a_f16[1:] - a_f16[:-1]) + + assert_equal(np.nextafter(a_f16[:-1], hinf), a_f16[1:]) + assert_equal(np.nextafter(a_f16[0], -hinf), -a_f16[1]) + assert_equal(np.nextafter(a_f16[1:], -hinf), a_f16[:-1]) + + assert_equal(np.nextafter(hinf, a_f16), a_f16[-1]) + assert_equal(np.nextafter(-hinf, a_f16), -a_f16[-1]) + + assert_equal(np.nextafter(hinf, hinf), hinf) + assert_equal(np.nextafter(hinf, -hinf), a_f16[-1]) + assert_equal(np.nextafter(-hinf, hinf), -a_f16[-1]) + assert_equal(np.nextafter(-hinf, -hinf), -hinf) + + assert_equal(np.nextafter(a_f16, hnan), hnan[0]) + assert_equal(np.nextafter(hnan, a_f16), hnan[0]) + + assert_equal(np.nextafter(hnan, hnan), hnan) + assert_equal(np.nextafter(hinf, hnan), hnan) + assert_equal(np.nextafter(hnan, hinf), hnan) + + # switch to negatives + a |= 0x8000 + + assert_equal(np.spacing(a_f16[0]), np.spacing(a_f16[1])) + assert_equal(np.spacing(a_f16[1:]), a_f16[:-1] - a_f16[1:]) + + assert_equal(np.nextafter(a_f16[0], hinf), -a_f16[1]) + assert_equal(np.nextafter(a_f16[1:], hinf), a_f16[:-1]) + assert_equal(np.nextafter(a_f16[:-1], -hinf), a_f16[1:]) + + assert_equal(np.nextafter(hinf, a_f16), -a_f16[-1]) + assert_equal(np.nextafter(-hinf, a_f16), a_f16[-1]) + + assert_equal(np.nextafter(a_f16, hnan), hnan[0]) + assert_equal(np.nextafter(hnan, a_f16), hnan[0]) + + def test_half_ufuncs(self): + """Test the various ufuncs""" + + a = np.array([0, 1, 2, 4, 2], dtype=float16) + b = np.array([-2, 5, 1, 4, 3], dtype=float16) + c = np.array([0, -1, -np.inf, np.nan, 6], dtype=float16) + + assert_equal(np.add(a, b), [-2, 6, 3, 8, 5]) + assert_equal(np.subtract(a, b), [2, -4, 1, 0, -1]) + assert_equal(np.multiply(a, b), [0, 5, 2, 16, 6]) + assert_equal(np.divide(a, b), [0, 0.199951171875, 2, 1, 0.66650390625]) + + assert_equal(np.equal(a, b), [False, False, False, True, False]) + assert_equal(np.not_equal(a, b), [True, True, True, False, True]) + assert_equal(np.less(a, b), [False, True, False, False, True]) + assert_equal(np.less_equal(a, b), [False, True, False, True, True]) + assert_equal(np.greater(a, b), [True, False, True, False, False]) + assert_equal(np.greater_equal(a, b), [True, False, True, True, False]) + assert_equal(np.logical_and(a, b), [False, True, True, True, True]) + assert_equal(np.logical_or(a, b), [True, True, True, True, True]) + assert_equal(np.logical_xor(a, b), [True, False, False, False, False]) + assert_equal(np.logical_not(a), [True, False, False, False, False]) + + assert_equal(np.isnan(c), [False, False, False, True, False]) + assert_equal(np.isinf(c), [False, False, True, False, False]) + assert_equal(np.isfinite(c), [True, True, False, False, True]) + assert_equal(np.signbit(b), [True, False, False, False, False]) + + assert_equal(np.copysign(b, a), [2, 5, 1, 4, 3]) + + assert_equal(np.maximum(a, b), [0, 5, 2, 4, 3]) + + x = np.maximum(b, c) + assert_(np.isnan(x[3])) + x[3] = 0 + assert_equal(x, [0, 5, 1, 0, 6]) + + assert_equal(np.minimum(a, b), [-2, 1, 1, 4, 2]) + + x = np.minimum(b, c) + assert_(np.isnan(x[3])) + x[3] = 0 + assert_equal(x, [-2, -1, -np.inf, 0, 3]) + + assert_equal(np.fmax(a, b), [0, 5, 2, 4, 3]) + assert_equal(np.fmax(b, c), [0, 5, 1, 4, 6]) + assert_equal(np.fmin(a, b), [-2, 1, 1, 4, 2]) + assert_equal(np.fmin(b, c), [-2, -1, -np.inf, 4, 3]) + + assert_equal(np.floor_divide(a, b), [0, 0, 2, 1, 0]) + assert_equal(np.remainder(a, b), [0, 1, 0, 0, 2]) + assert_equal(np.divmod(a, b), ([0, 0, 2, 1, 0], [0, 1, 0, 0, 2])) + assert_equal(np.square(b), [4, 25, 1, 16, 9]) + assert_equal(np.reciprocal(b), [-0.5, 0.199951171875, 1, 0.25, 0.333251953125]) + assert_equal(np.ones_like(b), [1, 1, 1, 1, 1]) + assert_equal(np.conjugate(b), b) + assert_equal(np.absolute(b), [2, 5, 1, 4, 3]) + assert_equal(np.negative(b), [2, -5, -1, -4, -3]) + assert_equal(np.positive(b), b) + assert_equal(np.sign(b), [-1, 1, 1, 1, 1]) + assert_equal(np.modf(b), ([0, 0, 0, 0, 0], b)) + assert_equal(np.frexp(b), ([-0.5, 0.625, 0.5, 0.5, 0.75], [2, 3, 1, 3, 2])) + assert_equal(np.ldexp(b, [0, 1, 2, 4, 2]), [-2, 10, 4, 64, 12]) + + def test_half_coercion(self): + """Test that half gets coerced properly with the other types""" + a16 = np.array((1,), dtype=float16) + a32 = np.array((1,), dtype=float32) + b16 = float16(1) + b32 = float32(1) + + assert np.power(a16, 2).dtype == float16 + assert np.power(a16, 2.0).dtype == float16 + assert np.power(a16, b16).dtype == float16 + assert np.power(a16, b32).dtype == float32 + assert np.power(a16, a16).dtype == float16 + assert np.power(a16, a32).dtype == float32 + + assert np.power(b16, 2).dtype == float16 + assert np.power(b16, 2.0).dtype == float16 + assert np.power(b16, b16).dtype, float16 + assert np.power(b16, b32).dtype, float32 + assert np.power(b16, a16).dtype, float16 + assert np.power(b16, a32).dtype, float32 + + assert np.power(a32, a16).dtype == float32 + assert np.power(a32, b16).dtype == float32 + assert np.power(b32, a16).dtype == float32 + assert np.power(b32, b16).dtype == float32 + + @pytest.mark.skipif(platform.machine() == "armv5tel", + reason="See gh-413.") + @pytest.mark.skipif(IS_WASM, + reason="fp exceptions don't work in wasm.") + def test_half_fpe(self): + with np.errstate(all='raise'): + sx16 = np.array((1e-4,), dtype=float16) + bx16 = np.array((1e4,), dtype=float16) + sy16 = float16(1e-4) + by16 = float16(1e4) + + # Underflow errors + assert_raises_fpe('underflow', lambda a, b: a * b, sx16, sx16) + assert_raises_fpe('underflow', lambda a, b: a * b, sx16, sy16) + assert_raises_fpe('underflow', lambda a, b: a * b, sy16, sx16) + assert_raises_fpe('underflow', lambda a, b: a * b, sy16, sy16) + assert_raises_fpe('underflow', lambda a, b: a / b, sx16, bx16) + assert_raises_fpe('underflow', lambda a, b: a / b, sx16, by16) + assert_raises_fpe('underflow', lambda a, b: a / b, sy16, bx16) + assert_raises_fpe('underflow', lambda a, b: a / b, sy16, by16) + assert_raises_fpe('underflow', lambda a, b: a / b, + float16(2.**-14), float16(2**11)) + assert_raises_fpe('underflow', lambda a, b: a / b, + float16(-2.**-14), float16(2**11)) + assert_raises_fpe('underflow', lambda a, b: a / b, + float16(2.**-14 + 2**-24), float16(2)) + assert_raises_fpe('underflow', lambda a, b: a / b, + float16(-2.**-14 - 2**-24), float16(2)) + assert_raises_fpe('underflow', lambda a, b: a / b, + float16(2.**-14 + 2**-23), float16(4)) + + # Overflow errors + assert_raises_fpe('overflow', lambda a, b: a * b, bx16, bx16) + assert_raises_fpe('overflow', lambda a, b: a * b, bx16, by16) + assert_raises_fpe('overflow', lambda a, b: a * b, by16, bx16) + assert_raises_fpe('overflow', lambda a, b: a * b, by16, by16) + assert_raises_fpe('overflow', lambda a, b: a / b, bx16, sx16) + assert_raises_fpe('overflow', lambda a, b: a / b, bx16, sy16) + assert_raises_fpe('overflow', lambda a, b: a / b, by16, sx16) + assert_raises_fpe('overflow', lambda a, b: a / b, by16, sy16) + assert_raises_fpe('overflow', lambda a, b: a + b, + float16(65504), float16(17)) + assert_raises_fpe('overflow', lambda a, b: a - b, + float16(-65504), float16(17)) + assert_raises_fpe('overflow', np.nextafter, float16(65504), float16(np.inf)) + assert_raises_fpe('overflow', np.nextafter, float16(-65504), float16(-np.inf)) # noqa: E501 + assert_raises_fpe('overflow', np.spacing, float16(65504)) + + # Invalid value errors + assert_raises_fpe('invalid', np.divide, float16(np.inf), float16(np.inf)) + assert_raises_fpe('invalid', np.spacing, float16(np.inf)) + assert_raises_fpe('invalid', np.spacing, float16(np.nan)) + + # These should not raise + float16(65472) + float16(32) + float16(2**-13) / float16(2) + float16(2**-14) / float16(2**10) + np.spacing(float16(-65504)) + np.nextafter(float16(65504), float16(-np.inf)) + np.nextafter(float16(-65504), float16(np.inf)) + np.nextafter(float16(np.inf), float16(0)) + np.nextafter(float16(-np.inf), float16(0)) + np.nextafter(float16(0), float16(np.nan)) + np.nextafter(float16(np.nan), float16(0)) + float16(2**-14) / float16(2**10) + float16(-2**-14) / float16(2**10) + float16(2**-14 + 2**-23) / float16(2) + float16(-2**-14 - 2**-23) / float16(2) + + def test_half_array_interface(self): + """Test that half is compatible with __array_interface__""" + class Dummy: + pass + + a = np.ones((1,), dtype=float16) + b = Dummy() + b.__array_interface__ = a.__array_interface__ + c = np.array(b) + assert_(c.dtype == float16) + assert_equal(a, c) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_hashtable.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_hashtable.py new file mode 100644 index 0000000000000000000000000000000000000000..25a7158aaf6fe04dca0f4540efa3f182d4e0b1c3 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_hashtable.py @@ -0,0 +1,36 @@ +import random + +import pytest + +from numpy._core._multiarray_tests import identityhash_tester + + +@pytest.mark.parametrize("key_length", [1, 3, 6]) +@pytest.mark.parametrize("length", [1, 16, 2000]) +def test_identity_hashtable(key_length, length): + # use a 30 object pool for everything (duplicates will happen) + pool = [object() for i in range(20)] + keys_vals = [] + for i in range(length): + keys = tuple(random.choices(pool, k=key_length)) + keys_vals.append((keys, random.choice(pool))) + + dictionary = dict(keys_vals) + + # add a random item at the end: + keys_vals.append(random.choice(keys_vals)) + # the expected one could be different with duplicates: + expected = dictionary[keys_vals[-1][0]] + + res = identityhash_tester(key_length, keys_vals, replace=True) + assert res is expected + + if length == 1: + return + + # add a new item with a key that is already used and a new value, this + # should error if replace is False, see gh-26690 + new_key = (keys_vals[1][0], object()) + keys_vals[0] = new_key + with pytest.raises(RuntimeError): + identityhash_tester(key_length, keys_vals) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_indexerrors.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_indexerrors.py new file mode 100644 index 0000000000000000000000000000000000000000..70e97dd6428e859025c820b6ecef62fcecb79ba2 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_indexerrors.py @@ -0,0 +1,122 @@ +import numpy as np +from numpy.testing import assert_raises, assert_raises_regex + + +class TestIndexErrors: + '''Tests to exercise indexerrors not covered by other tests.''' + + def test_arraytypes_fasttake(self): + 'take from a 0-length dimension' + x = np.empty((2, 3, 0, 4)) + assert_raises(IndexError, x.take, [0], axis=2) + assert_raises(IndexError, x.take, [1], axis=2) + assert_raises(IndexError, x.take, [0], axis=2, mode='wrap') + assert_raises(IndexError, x.take, [0], axis=2, mode='clip') + + def test_take_from_object(self): + # Check exception taking from object array + d = np.zeros(5, dtype=object) + assert_raises(IndexError, d.take, [6]) + + # Check exception taking from 0-d array + d = np.zeros((5, 0), dtype=object) + assert_raises(IndexError, d.take, [1], axis=1) + assert_raises(IndexError, d.take, [0], axis=1) + assert_raises(IndexError, d.take, [0]) + assert_raises(IndexError, d.take, [0], mode='wrap') + assert_raises(IndexError, d.take, [0], mode='clip') + + def test_multiindex_exceptions(self): + a = np.empty(5, dtype=object) + assert_raises(IndexError, a.item, 20) + a = np.empty((5, 0), dtype=object) + assert_raises(IndexError, a.item, (0, 0)) + + def test_put_exceptions(self): + a = np.zeros((5, 5)) + assert_raises(IndexError, a.put, 100, 0) + a = np.zeros((5, 5), dtype=object) + assert_raises(IndexError, a.put, 100, 0) + a = np.zeros((5, 5, 0)) + assert_raises(IndexError, a.put, 100, 0) + a = np.zeros((5, 5, 0), dtype=object) + assert_raises(IndexError, a.put, 100, 0) + + def test_iterators_exceptions(self): + "cases in iterators.c" + def assign(obj, ind, val): + obj[ind] = val + + a = np.zeros([1, 2, 3]) + assert_raises(IndexError, lambda: a[0, 5, None, 2]) + assert_raises(IndexError, lambda: a[0, 5, 0, 2]) + assert_raises(IndexError, lambda: assign(a, (0, 5, None, 2), 1)) + assert_raises(IndexError, lambda: assign(a, (0, 5, 0, 2), 1)) + + a = np.zeros([1, 0, 3]) + assert_raises(IndexError, lambda: a[0, 0, None, 2]) + assert_raises(IndexError, lambda: assign(a, (0, 0, None, 2), 1)) + + a = np.zeros([1, 2, 3]) + assert_raises(IndexError, lambda: a.flat[10]) + assert_raises(IndexError, lambda: assign(a.flat, 10, 5)) + a = np.zeros([1, 0, 3]) + assert_raises(IndexError, lambda: a.flat[10]) + assert_raises(IndexError, lambda: assign(a.flat, 10, 5)) + + a = np.zeros([1, 2, 3]) + assert_raises(IndexError, lambda: a.flat[np.array(10)]) + assert_raises(IndexError, lambda: assign(a.flat, np.array(10), 5)) + a = np.zeros([1, 0, 3]) + assert_raises(IndexError, lambda: a.flat[np.array(10)]) + assert_raises(IndexError, lambda: assign(a.flat, np.array(10), 5)) + + a = np.zeros([1, 2, 3]) + assert_raises(IndexError, lambda: a.flat[np.array([10])]) + assert_raises(IndexError, lambda: assign(a.flat, np.array([10]), 5)) + a = np.zeros([1, 0, 3]) + assert_raises(IndexError, lambda: a.flat[np.array([10])]) + assert_raises(IndexError, lambda: assign(a.flat, np.array([10]), 5)) + + def test_mapping(self): + "cases from mapping.c" + + def assign(obj, ind, val): + obj[ind] = val + + a = np.zeros((0, 10)) + assert_raises(IndexError, lambda: a[12]) + + a = np.zeros((3, 5)) + assert_raises(IndexError, lambda: a[(10, 20)]) + assert_raises(IndexError, lambda: assign(a, (10, 20), 1)) + a = np.zeros((3, 0)) + assert_raises(IndexError, lambda: a[(1, 0)]) + assert_raises(IndexError, lambda: assign(a, (1, 0), 1)) + + a = np.zeros((10,)) + assert_raises(IndexError, lambda: assign(a, 10, 1)) + a = np.zeros((0,)) + assert_raises(IndexError, lambda: assign(a, 10, 1)) + + a = np.zeros((3, 5)) + assert_raises(IndexError, lambda: a[(1, [1, 20])]) + assert_raises(IndexError, lambda: assign(a, (1, [1, 20]), 1)) + a = np.zeros((3, 0)) + assert_raises(IndexError, lambda: a[(1, [0, 1])]) + assert_raises(IndexError, lambda: assign(a, (1, [0, 1]), 1)) + + def test_mapping_error_message(self): + a = np.zeros((3, 5)) + index = (1, 2, 3, 4, 5) + assert_raises_regex( + IndexError, + "too many indices for array: " + "array is 2-dimensional, but 5 were indexed", + lambda: a[index]) + + def test_methods(self): + "cases from methods.c" + + a = np.zeros((3, 3)) + assert_raises(IndexError, lambda: a.item(100)) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_indexing.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_indexing.py new file mode 100644 index 0000000000000000000000000000000000000000..65d42d6c9370598411cd0b4f11f022de86a76e6f --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_indexing.py @@ -0,0 +1,1692 @@ +import functools +import inspect +import operator +import sys +import warnings +from itertools import product + +import pytest + +import numpy as np +from numpy._core._multiarray_tests import array_indexing +from numpy.exceptions import ComplexWarning, VisibleDeprecationWarning +from numpy.testing import ( + HAS_REFCOUNT, + IS_PYPY, + assert_, + assert_array_equal, + assert_equal, + assert_raises, + assert_raises_regex, +) + + +class TestIndexing: + def test_index_no_floats(self): + a = np.array([[[5]]]) + + assert_raises(IndexError, lambda: a[0.0]) + assert_raises(IndexError, lambda: a[0, 0.0]) + assert_raises(IndexError, lambda: a[0.0, 0]) + assert_raises(IndexError, lambda: a[0.0, :]) + assert_raises(IndexError, lambda: a[:, 0.0]) + assert_raises(IndexError, lambda: a[:, 0.0, :]) + assert_raises(IndexError, lambda: a[0.0, :, :]) + assert_raises(IndexError, lambda: a[0, 0, 0.0]) + assert_raises(IndexError, lambda: a[0.0, 0, 0]) + assert_raises(IndexError, lambda: a[0, 0.0, 0]) + assert_raises(IndexError, lambda: a[-1.4]) + assert_raises(IndexError, lambda: a[0, -1.4]) + assert_raises(IndexError, lambda: a[-1.4, 0]) + assert_raises(IndexError, lambda: a[-1.4, :]) + assert_raises(IndexError, lambda: a[:, -1.4]) + assert_raises(IndexError, lambda: a[:, -1.4, :]) + assert_raises(IndexError, lambda: a[-1.4, :, :]) + assert_raises(IndexError, lambda: a[0, 0, -1.4]) + assert_raises(IndexError, lambda: a[-1.4, 0, 0]) + assert_raises(IndexError, lambda: a[0, -1.4, 0]) + assert_raises(IndexError, lambda: a[0.0:, 0.0]) + assert_raises(IndexError, lambda: a[0.0:, 0.0, :]) + + def test_slicing_no_floats(self): + a = np.array([[5]]) + + # start as float. + assert_raises(TypeError, lambda: a[0.0:]) + assert_raises(TypeError, lambda: a[0:, 0.0:2]) + assert_raises(TypeError, lambda: a[0.0::2, :0]) + assert_raises(TypeError, lambda: a[0.0:1:2, :]) + assert_raises(TypeError, lambda: a[:, 0.0:]) + # stop as float. + assert_raises(TypeError, lambda: a[:0.0]) + assert_raises(TypeError, lambda: a[:0, 1:2.0]) + assert_raises(TypeError, lambda: a[:0.0:2, :0]) + assert_raises(TypeError, lambda: a[:0.0, :]) + assert_raises(TypeError, lambda: a[:, 0:4.0:2]) + # step as float. + assert_raises(TypeError, lambda: a[::1.0]) + assert_raises(TypeError, lambda: a[0:, :2:2.0]) + assert_raises(TypeError, lambda: a[1::4.0, :0]) + assert_raises(TypeError, lambda: a[::5.0, :]) + assert_raises(TypeError, lambda: a[:, 0:4:2.0]) + # mixed. + assert_raises(TypeError, lambda: a[1.0:2:2.0]) + assert_raises(TypeError, lambda: a[1.0::2.0]) + assert_raises(TypeError, lambda: a[0:, :2.0:2.0]) + assert_raises(TypeError, lambda: a[1.0:1:4.0, :0]) + assert_raises(TypeError, lambda: a[1.0:5.0:5.0, :]) + assert_raises(TypeError, lambda: a[:, 0.4:4.0:2.0]) + # should still get the DeprecationWarning if step = 0. + assert_raises(TypeError, lambda: a[::0.0]) + + def test_index_no_array_to_index(self): + # No non-scalar arrays. + a = np.array([[[1]]]) + + assert_raises(TypeError, lambda: a[a:a:a]) + + def test_none_index(self): + # `None` index adds newaxis + a = np.array([1, 2, 3]) + assert_equal(a[None], a[np.newaxis]) + assert_equal(a[None].ndim, a.ndim + 1) + + def test_empty_tuple_index(self): + # Empty tuple index creates a view + a = np.array([1, 2, 3]) + assert_equal(a[()], a) + assert_(a[()].base is a) + a = np.array(0) + assert_(isinstance(a[()], np.int_)) + + def test_void_scalar_empty_tuple(self): + s = np.zeros((), dtype='V4') + assert_equal(s[()].dtype, s.dtype) + assert_equal(s[()], s) + assert_equal(type(s[...]), np.ndarray) + + def test_same_kind_index_casting(self): + # Indexes should be cast with same-kind and not safe, even if that + # is somewhat unsafe. So test various different code paths. + index = np.arange(5) + u_index = index.astype(np.uintp) + arr = np.arange(10) + + assert_array_equal(arr[index], arr[u_index]) + arr[u_index] = np.arange(5) + assert_array_equal(arr, np.arange(10)) + + arr = np.arange(10).reshape(5, 2) + assert_array_equal(arr[index], arr[u_index]) + + arr[u_index] = np.arange(5)[:, None] + assert_array_equal(arr, np.arange(5)[:, None].repeat(2, axis=1)) + + arr = np.arange(25).reshape(5, 5) + assert_array_equal(arr[u_index, u_index], arr[index, index]) + + def test_empty_fancy_index(self): + # Empty list index creates an empty array + # with the same dtype (but with weird shape) + a = np.array([1, 2, 3]) + assert_equal(a[[]], []) + assert_equal(a[[]].dtype, a.dtype) + + b = np.array([], dtype=np.intp) + assert_equal(a[[]], []) + assert_equal(a[[]].dtype, a.dtype) + + b = np.array([]) + assert_raises(IndexError, a.__getitem__, b) + + def test_gh_26542(self): + a = np.array([0, 1, 2]) + idx = np.array([2, 1, 0]) + a[idx] = a + expected = np.array([2, 1, 0]) + assert_equal(a, expected) + + def test_gh_26542_2d(self): + a = np.array([[0, 1, 2]]) + idx_row = np.zeros(3, dtype=int) + idx_col = np.array([2, 1, 0]) + a[idx_row, idx_col] = a + expected = np.array([[2, 1, 0]]) + assert_equal(a, expected) + + def test_gh_26542_index_overlap(self): + arr = np.arange(100) + expected_vals = np.copy(arr[:-10]) + arr[10:] = arr[:-10] + actual_vals = arr[10:] + assert_equal(actual_vals, expected_vals) + + def test_gh_26844(self): + expected = [0, 1, 3, 3, 3] + a = np.arange(5) + a[2:][a[:-2]] = 3 + assert_equal(a, expected) + + def test_gh_26844_segfault(self): + # check for absence of segfault for: + # https://github.com/numpy/numpy/pull/26958/files#r1854589178 + a = np.arange(5) + expected = [0, 1, 3, 3, 3] + a[2:][None, a[:-2]] = 3 + assert_equal(a, expected) + + def test_ellipsis_index(self): + a = np.array([[1, 2, 3], + [4, 5, 6], + [7, 8, 9]]) + assert_(a[...] is not a) + assert_equal(a[...], a) + # `a[...]` was `a` in numpy <1.9. + assert_(a[...].base is a) + + # Slicing with ellipsis can skip an + # arbitrary number of dimensions + assert_equal(a[0, ...], a[0]) + assert_equal(a[0, ...], a[0, :]) + assert_equal(a[..., 0], a[:, 0]) + + # Slicing with ellipsis always results + # in an array, not a scalar + assert_equal(a[0, ..., 1], np.array(2)) + + # Assignment with `(Ellipsis,)` on 0-d arrays + b = np.array(1) + b[(Ellipsis,)] = 2 + assert_equal(b, 2) + + def test_single_int_index(self): + # Single integer index selects one row + a = np.array([[1, 2, 3], + [4, 5, 6], + [7, 8, 9]]) + + assert_equal(a[0], [1, 2, 3]) + assert_equal(a[-1], [7, 8, 9]) + + # Index out of bounds produces IndexError + assert_raises(IndexError, a.__getitem__, 1 << 30) + # Index overflow produces IndexError + assert_raises(IndexError, a.__getitem__, 1 << 64) + + def test_single_bool_index(self): + # Single boolean index + a = np.array([[1, 2, 3], + [4, 5, 6], + [7, 8, 9]]) + + assert_equal(a[np.array(True)], a[None]) + assert_equal(a[np.array(False)], a[None][0:0]) + + def test_boolean_shape_mismatch(self): + arr = np.ones((5, 4, 3)) + + index = np.array([True]) + assert_raises(IndexError, arr.__getitem__, index) + + index = np.array([False] * 6) + assert_raises(IndexError, arr.__getitem__, index) + + index = np.zeros((4, 4), dtype=bool) + assert_raises(IndexError, arr.__getitem__, index) + + assert_raises(IndexError, arr.__getitem__, (slice(None), index)) + + def test_boolean_indexing_onedim(self): + # Indexing a 2-dimensional array with + # boolean array of length one + a = np.array([[0., 0., 0.]]) + b = np.array([True], dtype=bool) + assert_equal(a[b], a) + # boolean assignment + a[b] = 1. + assert_equal(a, [[1., 1., 1.]]) + + def test_boolean_assignment_value_mismatch(self): + # A boolean assignment should fail when the shape of the values + # cannot be broadcast to the subscription. (see also gh-3458) + a = np.arange(4) + + def f(a, v): + a[a > -1] = v + + assert_raises(ValueError, f, a, []) + assert_raises(ValueError, f, a, [1, 2, 3]) + assert_raises(ValueError, f, a[:1], [1, 2, 3]) + + def test_boolean_assignment_needs_api(self): + # See also gh-7666 + # This caused a segfault on Python 2 due to the GIL not being + # held when the iterator does not need it, but the transfer function + # does + arr = np.zeros(1000) + indx = np.zeros(1000, dtype=bool) + indx[:100] = True + arr[indx] = np.ones(100, dtype=object) + + expected = np.zeros(1000) + expected[:100] = 1 + assert_array_equal(arr, expected) + + def test_boolean_indexing_twodim(self): + # Indexing a 2-dimensional array with + # 2-dimensional boolean array + a = np.array([[1, 2, 3], + [4, 5, 6], + [7, 8, 9]]) + b = np.array([[ True, False, True], + [False, True, False], + [ True, False, True]]) + assert_equal(a[b], [1, 3, 5, 7, 9]) + assert_equal(a[b[1]], [[4, 5, 6]]) + assert_equal(a[b[0]], a[b[2]]) + + # boolean assignment + a[b] = 0 + assert_equal(a, [[0, 2, 0], + [4, 0, 6], + [0, 8, 0]]) + + def test_boolean_indexing_list(self): + # Regression test for #13715. It's a use-after-free bug which the + # test won't directly catch, but it will show up in valgrind. + a = np.array([1, 2, 3]) + b = [True, False, True] + # Two variants of the test because the first takes a fast path + assert_equal(a[b], [1, 3]) + assert_equal(a[None, b], [[1, 3]]) + + def test_reverse_strides_and_subspace_bufferinit(self): + # This tests that the strides are not reversed for simple and + # subspace fancy indexing. + a = np.ones(5) + b = np.zeros(5, dtype=np.intp)[::-1] + c = np.arange(5)[::-1] + + a[b] = c + # If the strides are not reversed, the 0 in the arange comes last. + assert_equal(a[0], 0) + + # This also tests that the subspace buffer is initialized: + a = np.ones((5, 2)) + c = np.arange(10).reshape(5, 2)[::-1] + a[b, :] = c + assert_equal(a[0], [0, 1]) + + def test_reversed_strides_result_allocation(self): + # Test a bug when calculating the output strides for a result array + # when the subspace size was 1 (and test other cases as well) + a = np.arange(10)[:, None] + i = np.arange(10)[::-1] + assert_array_equal(a[i], a[i.copy('C')]) + + a = np.arange(20).reshape(-1, 2) + + def test_uncontiguous_subspace_assignment(self): + # During development there was a bug activating a skip logic + # based on ndim instead of size. + a = np.full((3, 4, 2), -1) + b = np.full((3, 4, 2), -1) + + a[[0, 1]] = np.arange(2 * 4 * 2).reshape(2, 4, 2).T + b[[0, 1]] = np.arange(2 * 4 * 2).reshape(2, 4, 2).T.copy() + + assert_equal(a, b) + + def test_too_many_fancy_indices_special_case(self): + # Just documents behaviour, this is a small limitation. + a = np.ones((1,) * 64) # 64 is NPY_MAXDIMS + assert_raises(IndexError, a.__getitem__, (np.array([0]),) * 64) + + def test_scalar_array_bool(self): + # NumPy bools can be used as boolean index (python ones as of yet not) + a = np.array(1) + assert_equal(a[np.bool(True)], a[np.array(True)]) + assert_equal(a[np.bool(False)], a[np.array(False)]) + + # After deprecating bools as integers: + #a = np.array([0,1,2]) + #assert_equal(a[True, :], a[None, :]) + #assert_equal(a[:, True], a[:, None]) + # + #assert_(not np.may_share_memory(a, a[True, :])) + + def test_everything_returns_views(self): + # Before `...` would return a itself. + a = np.arange(5) + + assert_(a is not a[()]) + assert_(a is not a[...]) + assert_(a is not a[:]) + + def test_broaderrors_indexing(self): + a = np.zeros((5, 5)) + assert_raises(IndexError, a.__getitem__, ([0, 1], [0, 1, 2])) + assert_raises(IndexError, a.__setitem__, ([0, 1], [0, 1, 2]), 0) + + def test_trivial_fancy_out_of_bounds(self): + a = np.zeros(5) + ind = np.ones(20, dtype=np.intp) + ind[-1] = 10 + assert_raises(IndexError, a.__getitem__, ind) + assert_raises(IndexError, a.__setitem__, ind, 0) + ind = np.ones(20, dtype=np.intp) + ind[0] = 11 + assert_raises(IndexError, a.__getitem__, ind) + assert_raises(IndexError, a.__setitem__, ind, 0) + + def test_trivial_fancy_not_possible(self): + # Test that the fast path for trivial assignment is not incorrectly + # used when the index is not contiguous or 1D, see also gh-11467. + a = np.arange(6) + idx = np.arange(6, dtype=np.intp).reshape(2, 1, 3)[:, :, 0] + assert_array_equal(a[idx], idx) + + # this case must not go into the fast path, note that idx is + # a non-contiguous none 1D array here. + a[idx] = -1 + res = np.arange(6) + res[0] = -1 + res[3] = -1 + assert_array_equal(a, res) + + def test_nonbaseclass_values(self): + class SubClass(np.ndarray): + def __array_finalize__(self, old): + # Have array finalize do funny things + self.fill(99) + + a = np.zeros((5, 5)) + s = a.copy().view(type=SubClass) + s.fill(1) + + a[[0, 1, 2, 3, 4], :] = s + assert_((a == 1).all()) + + # Subspace is last, so transposing might want to finalize + a[:, [0, 1, 2, 3, 4]] = s + assert_((a == 1).all()) + + a.fill(0) + a[...] = s + assert_((a == 1).all()) + + def test_array_like_values(self): + # Similar to the above test, but use a memoryview instead + a = np.zeros((5, 5)) + s = np.arange(25, dtype=np.float64).reshape(5, 5) + + a[[0, 1, 2, 3, 4], :] = memoryview(s) + assert_array_equal(a, s) + + a[:, [0, 1, 2, 3, 4]] = memoryview(s) + assert_array_equal(a, s) + + a[...] = memoryview(s) + assert_array_equal(a, s) + + @pytest.mark.parametrize("writeable", [True, False]) + def test_subclass_writeable(self, writeable): + d = np.rec.array([('NGC1001', 11), ('NGC1002', 1.), ('NGC1003', 1.)], + dtype=[('target', 'S20'), ('V_mag', '>f4')]) + d.flags.writeable = writeable + # Advanced indexing results are always writeable: + ind = np.array([False, True, True], dtype=bool) + assert d[ind].flags.writeable + ind = np.array([0, 1]) + assert d[ind].flags.writeable + # Views should be writeable if the original array is: + assert d[...].flags.writeable == writeable + assert d[0].flags.writeable == writeable + + def test_memory_order(self): + # This is not necessary to preserve. Memory layouts for + # more complex indices are not as simple. + a = np.arange(10) + b = np.arange(10).reshape(5, 2).T + assert_(a[b].flags.f_contiguous) + + # Takes a different implementation branch: + a = a.reshape(-1, 1) + assert_(a[b, 0].flags.f_contiguous) + + def test_scalar_return_type(self): + # Full scalar indices should return scalars and object + # arrays should not call PyArray_Return on their items + class Zero: + # The most basic valid indexing + def __index__(self): + return 0 + + z = Zero() + + class ArrayLike: + # Simple array, should behave like the array + def __array__(self, dtype=None, copy=None): + return np.array(0) + + a = np.zeros(()) + assert_(isinstance(a[()], np.float64)) + a = np.zeros(1) + assert_(isinstance(a[z], np.float64)) + a = np.zeros((1, 1)) + assert_(isinstance(a[z, np.array(0)], np.float64)) + assert_(isinstance(a[z, ArrayLike()], np.float64)) + + # And object arrays do not call it too often: + b = np.array(0) + a = np.array(0, dtype=object) + a[()] = b + assert_(isinstance(a[()], np.ndarray)) + a = np.array([b, None]) + assert_(isinstance(a[z], np.ndarray)) + a = np.array([[b, None]]) + assert_(isinstance(a[z, np.array(0)], np.ndarray)) + assert_(isinstance(a[z, ArrayLike()], np.ndarray)) + + def test_small_regressions(self): + # Reference count of intp for index checks + a = np.array([0]) + if HAS_REFCOUNT: + refcount = sys.getrefcount(np.dtype(np.intp)) + # item setting always checks indices in separate function: + a[np.array([0], dtype=np.intp)] = 1 + a[np.array([0], dtype=np.uint8)] = 1 + assert_raises(IndexError, a.__setitem__, + np.array([1], dtype=np.intp), 1) + assert_raises(IndexError, a.__setitem__, + np.array([1], dtype=np.uint8), 1) + + if HAS_REFCOUNT: + assert_equal(sys.getrefcount(np.dtype(np.intp)), refcount) + + def test_unaligned(self): + v = (np.zeros(64, dtype=np.int8) + ord('a'))[1:-7] + d = v.view(np.dtype("S8")) + # unaligned source + x = (np.zeros(16, dtype=np.int8) + ord('a'))[1:-7] + x = x.view(np.dtype("S8")) + x[...] = np.array("b" * 8, dtype="S") + b = np.arange(d.size) + # trivial + assert_equal(d[b], d) + d[b] = x + # nontrivial + # unaligned index array + b = np.zeros(d.size + 1).view(np.int8)[1:-(np.intp(0).itemsize - 1)] + b = b.view(np.intp)[:d.size] + b[...] = np.arange(d.size) + assert_equal(d[b.astype(np.int16)], d) + d[b.astype(np.int16)] = x + # boolean + d[b % 2 == 0] + d[b % 2 == 0] = x[::2] + + def test_tuple_subclass(self): + arr = np.ones((5, 5)) + + # A tuple subclass should also be an nd-index + class TupleSubclass(tuple): + pass + index = ([1], [1]) + index = TupleSubclass(index) + assert_(arr[index].shape == (1,)) + # Unlike the non nd-index: + assert_(arr[index,].shape != (1,)) + + def test_broken_sequence_not_nd_index(self): + # See gh-5063: + # If we have an object which claims to be a sequence, but fails + # on item getting, this should not be converted to an nd-index (tuple) + # If this object happens to be a valid index otherwise, it should work + # This object here is very dubious and probably bad though: + class SequenceLike: + def __index__(self): + return 0 + + def __len__(self): + return 1 + + def __getitem__(self, item): + raise IndexError('Not possible') + + arr = np.arange(10) + assert_array_equal(arr[SequenceLike()], arr[SequenceLike(),]) + + # also test that field indexing does not segfault + # for a similar reason, by indexing a structured array + arr = np.zeros((1,), dtype=[('f1', 'i8'), ('f2', 'i8')]) + assert_array_equal(arr[SequenceLike()], arr[SequenceLike(),]) + + def test_indexing_array_weird_strides(self): + # See also gh-6221 + # the shapes used here come from the issue and create the correct + # size for the iterator buffering size. + x = np.ones(10) + x2 = np.ones((10, 2)) + ind = np.arange(10)[:, None, None, None] + ind = np.broadcast_to(ind, (10, 55, 4, 4)) + + # single advanced index case + assert_array_equal(x[ind], x[ind.copy()]) + # higher dimensional advanced index + zind = np.zeros(4, dtype=np.intp) + assert_array_equal(x2[ind, zind], x2[ind.copy(), zind]) + + def test_indexing_array_negative_strides(self): + # From gh-8264, + # core dumps if negative strides are used in iteration + arro = np.zeros((4, 4)) + arr = arro[::-1, ::-1] + + slices = (slice(None), [0, 1, 2, 3]) + arr[slices] = 10 + assert_array_equal(arr, 10.) + + def test_character_assignment(self): + # This is an example a function going through CopyObject which + # used to have an untested special path for scalars + # (the character special dtype case, should be deprecated probably) + arr = np.zeros((1, 5), dtype="c") + arr[0] = np.str_("asdfg") # must assign as a sequence + assert_array_equal(arr[0], np.array("asdfg", dtype="c")) + assert arr[0, 1] == b"s" # make sure not all were set to "a" for both + + @pytest.mark.parametrize("index", + [True, False, np.array([0])]) + @pytest.mark.parametrize("num", [64, 80]) + @pytest.mark.parametrize("original_ndim", [1, 64]) + def test_too_many_advanced_indices(self, index, num, original_ndim): + # These are limitations based on the number of arguments we can process. + # For `num=32` (and all boolean cases), the result is actually define; + # but the use of NpyIter (NPY_MAXARGS) limits it for technical reasons. + arr = np.ones((1,) * original_ndim) + with pytest.raises(IndexError): + arr[(index,) * num] + with pytest.raises(IndexError): + arr[(index,) * num] = 1. + + def test_nontuple_ndindex(self): + a = np.arange(25).reshape((5, 5)) + assert_equal(a[[0, 1]], np.array([a[0], a[1]])) + assert_equal(a[[0, 1], [0, 1]], np.array([0, 6])) + assert_raises(IndexError, a.__getitem__, [slice(None)]) + + +class TestFieldIndexing: + def test_scalar_return_type(self): + # Field access on an array should return an array, even if it + # is 0-d. + a = np.zeros((), [('a', 'f8')]) + assert_(isinstance(a['a'], np.ndarray)) + assert_(isinstance(a[['a']], np.ndarray)) + + +class TestBroadcastedAssignments: + def assign(self, a, ind, val): + a[ind] = val + return a + + def test_prepending_ones(self): + a = np.zeros((3, 2)) + + a[...] = np.ones((1, 3, 2)) + # Fancy with subspace with and without transpose + a[[0, 1, 2], :] = np.ones((1, 3, 2)) + a[:, [0, 1]] = np.ones((1, 3, 2)) + # Fancy without subspace (with broadcasting) + a[[[0], [1], [2]], [0, 1]] = np.ones((1, 3, 2)) + + def test_prepend_not_one(self): + assign = self.assign + s_ = np.s_ + a = np.zeros(5) + + # Too large and not only ones. + assert_raises(ValueError, assign, a, s_[...], np.ones((2, 1))) + assert_raises(ValueError, assign, a, s_[[1, 2, 3],], np.ones((2, 1))) + assert_raises(ValueError, assign, a, s_[[[1], [2]],], np.ones((2, 2, 1))) + + def test_simple_broadcasting_errors(self): + assign = self.assign + s_ = np.s_ + a = np.zeros((5, 1)) + + assert_raises(ValueError, assign, a, s_[...], np.zeros((5, 2))) + assert_raises(ValueError, assign, a, s_[...], np.zeros((5, 0))) + assert_raises(ValueError, assign, a, s_[:, [0]], np.zeros((5, 2))) + assert_raises(ValueError, assign, a, s_[:, [0]], np.zeros((5, 0))) + assert_raises(ValueError, assign, a, s_[[0], :], np.zeros((2, 1))) + + @pytest.mark.parametrize("index", [ + (..., [1, 2], slice(None)), + ([0, 1], ..., 0), + (..., [1, 2], [1, 2])]) + def test_broadcast_error_reports_correct_shape(self, index): + values = np.zeros((100, 100)) # will never broadcast below + + arr = np.zeros((3, 4, 5, 6, 7)) + # We currently report without any spaces (could be changed) + shape_str = str(arr[index].shape).replace(" ", "") + + with pytest.raises(ValueError) as e: + arr[index] = values + + assert str(e.value).endswith(shape_str) + + def test_index_is_larger(self): + # Simple case of fancy index broadcasting of the index. + a = np.zeros((5, 5)) + a[[[0], [1], [2]], [0, 1, 2]] = [2, 3, 4] + + assert_((a[:3, :3] == [2, 3, 4]).all()) + + def test_broadcast_subspace(self): + a = np.zeros((100, 100)) + v = np.arange(100)[:, None] + b = np.arange(100)[::-1] + a[b] = v + assert_((a[::-1] == v).all()) + + +class TestSubclasses: + def test_basic(self): + # Test that indexing in various ways produces SubClass instances, + # and that the base is set up correctly: the original subclass + # instance for views, and a new ndarray for advanced/boolean indexing + # where a copy was made (latter a regression test for gh-11983). + class SubClass(np.ndarray): + pass + + a = np.arange(5) + s = a.view(SubClass) + s_slice = s[:3] + assert_(type(s_slice) is SubClass) + assert_(s_slice.base is s) + assert_array_equal(s_slice, a[:3]) + + s_fancy = s[[0, 1, 2]] + assert_(type(s_fancy) is SubClass) + assert_(s_fancy.base is not s) + assert_(type(s_fancy.base) is np.ndarray) + assert_array_equal(s_fancy, a[[0, 1, 2]]) + assert_array_equal(s_fancy.base, a[[0, 1, 2]]) + + s_bool = s[s > 0] + assert_(type(s_bool) is SubClass) + assert_(s_bool.base is not s) + assert_(type(s_bool.base) is np.ndarray) + assert_array_equal(s_bool, a[a > 0]) + assert_array_equal(s_bool.base, a[a > 0]) + + def test_fancy_on_read_only(self): + # Test that fancy indexing on read-only SubClass does not make a + # read-only copy (gh-14132) + class SubClass(np.ndarray): + pass + + a = np.arange(5) + s = a.view(SubClass) + s.flags.writeable = False + s_fancy = s[[0, 1, 2]] + assert_(s_fancy.flags.writeable) + + def test_finalize_gets_full_info(self): + # Array finalize should be called on the filled array. + class SubClass(np.ndarray): + def __array_finalize__(self, old): + self.finalize_status = np.array(self) + self.old = old + + s = np.arange(10).view(SubClass) + new_s = s[:3] + assert_array_equal(new_s.finalize_status, new_s) + assert_array_equal(new_s.old, s) + + new_s = s[[0, 1, 2, 3]] + assert_array_equal(new_s.finalize_status, new_s) + assert_array_equal(new_s.old, s) + + new_s = s[s > 0] + assert_array_equal(new_s.finalize_status, new_s) + assert_array_equal(new_s.old, s) + + +class TestFancyIndexingCast: + def test_boolean_index_cast_assign(self): + # Setup the boolean index and float arrays. + shape = (8, 63) + bool_index = np.zeros(shape).astype(bool) + bool_index[0, 1] = True + zero_array = np.zeros(shape) + + # Assigning float is fine. + zero_array[bool_index] = np.array([1]) + assert_equal(zero_array[0, 1], 1) + + # Fancy indexing works, although we get a cast warning. + pytest.warns(ComplexWarning, + zero_array.__setitem__, ([0], [1]), np.array([2 + 1j])) + assert_equal(zero_array[0, 1], 2) # No complex part + + # Cast complex to float, throwing away the imaginary portion. + pytest.warns(ComplexWarning, + zero_array.__setitem__, bool_index, np.array([1j])) + assert_equal(zero_array[0, 1], 0) + + +class TestFancyIndexingEquivalence: + def test_object_assign(self): + # Check that the field and object special case using copyto is active. + # The right hand side cannot be converted to an array here. + a = np.arange(5, dtype=object) + b = a.copy() + a[:3] = [1, (1, 2), 3] + b[[0, 1, 2]] = [1, (1, 2), 3] + assert_array_equal(a, b) + + # test same for subspace fancy indexing + b = np.arange(5, dtype=object)[None, :] + b[[0], :3] = [[1, (1, 2), 3]] + assert_array_equal(a, b[0]) + + # Check that swapping of axes works. + # There was a bug that made the later assignment throw a ValueError + # do to an incorrectly transposed temporary right hand side (gh-5714) + b = b.T + b[:3, [0]] = [[1], [(1, 2)], [3]] + assert_array_equal(a, b[:, 0]) + + # Another test for the memory order of the subspace + arr = np.ones((3, 4, 5), dtype=object) + # Equivalent slicing assignment for comparison + cmp_arr = arr.copy() + cmp_arr[:1, ...] = [[[1], [2], [3], [4]]] + arr[[0], ...] = [[[1], [2], [3], [4]]] + assert_array_equal(arr, cmp_arr) + arr = arr.copy('F') + arr[[0], ...] = [[[1], [2], [3], [4]]] + assert_array_equal(arr, cmp_arr) + + def test_cast_equivalence(self): + # Yes, normal slicing uses unsafe casting. + a = np.arange(5) + b = a.copy() + + a[:3] = np.array(['2', '-3', '-1']) + b[[0, 2, 1]] = np.array(['2', '-1', '-3']) + assert_array_equal(a, b) + + # test the same for subspace fancy indexing + b = np.arange(5)[None, :] + b[[0], :3] = np.array([['2', '-3', '-1']]) + assert_array_equal(a, b[0]) + + +class TestMultiIndexingAutomated: + """ + These tests use code to mimic the C-Code indexing for selection. + + NOTE: + + * This still lacks tests for complex item setting. + * If you change behavior of indexing, you might want to modify + these tests to try more combinations. + * Behavior was written to match numpy version 1.8. (though a + first version matched 1.7.) + * Only tuple indices are supported by the mimicking code. + (and tested as of writing this) + * Error types should match most of the time as long as there + is only one error. For multiple errors, what gets raised + will usually not be the same one. They are *not* tested. + + Update 2016-11-30: It is probably not worth maintaining this test + indefinitely and it can be dropped if maintenance becomes a burden. + + """ + + def _create_array(self): + return np.arange(np.prod([3, 1, 5, 6])).reshape(3, 1, 5, 6) + + def _create_complex_indices(self): + return ['skip', Ellipsis, + 0, + # Boolean indices, up to 3-d for some special cases of eating up + # dimensions, also need to test all False + np.array([True, False, False]), + np.array([[True, False], [False, True]]), + np.array([[[False, False], [False, False]]]), + # Some slices: + slice(-5, 5, 2), + slice(1, 1, 100), + slice(4, -1, -2), + slice(None, None, -3), + # Some Fancy indexes: + np.empty((0, 1, 1), dtype=np.intp), # empty and can be broadcast + np.array([0, 1, -2]), + np.array([[2], [0], [1]]), + np.array([[0, -1], [0, 1]], dtype=np.dtype('intp').newbyteorder()), + np.array([2, -1], dtype=np.int8), + np.zeros([1] * 31, dtype=int), # trigger too large array. + np.array([0., 1.])] # invalid datatype + + def _get_multi_index(self, arr, indices): + """Mimic multi dimensional indexing. + + Parameters + ---------- + arr : ndarray + Array to be indexed. + indices : tuple of index objects + + Returns + ------- + out : ndarray + An array equivalent to the indexing operation (but always a copy). + `arr[indices]` should be identical. + no_copy : bool + Whether the indexing operation requires a copy. If this is `True`, + `np.may_share_memory(arr, arr[indices])` should be `True` (with + some exceptions for scalars and possibly 0-d arrays). + + Notes + ----- + While the function may mostly match the errors of normal indexing this + is generally not the case. + """ + in_indices = list(indices) + indices = [] + # if False, this is a fancy or boolean index + no_copy = True + # number of fancy/scalar indexes that are not consecutive + num_fancy = 0 + # number of dimensions indexed by a "fancy" index + fancy_dim = 0 + # NOTE: This is a funny twist (and probably OK to change). + # The boolean array has illegal indexes, but this is + # allowed if the broadcast fancy-indices are 0-sized. + # This variable is to catch that case. + error_unless_broadcast_to_empty = False + + # We need to handle Ellipsis and make arrays from indices, also + # check if this is fancy indexing (set no_copy). + ndim = 0 + ellipsis_pos = None # define here mostly to replace all but first. + for i, indx in enumerate(in_indices): + if indx is None: + continue + if isinstance(indx, np.ndarray) and indx.dtype == bool: + no_copy = False + if indx.ndim == 0: + raise IndexError + # boolean indices can have higher dimensions + ndim += indx.ndim + fancy_dim += indx.ndim + continue + if indx is Ellipsis: + if ellipsis_pos is None: + ellipsis_pos = i + continue # do not increment ndim counter + raise IndexError + if isinstance(indx, slice): + ndim += 1 + continue + if not isinstance(indx, np.ndarray): + # This could be open for changes in numpy. + # numpy should maybe raise an error if casting to intp + # is not safe. It rejects np.array([1., 2.]) but not + # [1., 2.] as index (same for ie. np.take). + # (Note the importance of empty lists if changing this here) + try: + indx = np.array(indx, dtype=np.intp) + except ValueError: + raise IndexError + in_indices[i] = indx + elif indx.dtype.kind not in 'bi': + raise IndexError('arrays used as indices must be of ' + 'integer (or boolean) type') + if indx.ndim != 0: + no_copy = False + ndim += 1 + fancy_dim += 1 + + if arr.ndim - ndim < 0: + # we can't take more dimensions then we have, not even for 0-d + # arrays. since a[()] makes sense, but not a[(),]. We will + # raise an error later on, unless a broadcasting error occurs + # first. + raise IndexError + + if ndim == 0 and None not in in_indices: + # Well we have no indexes or one Ellipsis. This is legal. + return arr.copy(), no_copy + + if ellipsis_pos is not None: + in_indices[ellipsis_pos:ellipsis_pos + 1] = ([slice(None, None)] * + (arr.ndim - ndim)) + + for ax, indx in enumerate(in_indices): + if isinstance(indx, slice): + # convert to an index array + indx = np.arange(*indx.indices(arr.shape[ax])) + indices.append(['s', indx]) + continue + elif indx is None: + # this is like taking a slice with one element from a new axis: + indices.append(['n', np.array([0], dtype=np.intp)]) + arr = arr.reshape(arr.shape[:ax] + (1,) + arr.shape[ax:]) + continue + if isinstance(indx, np.ndarray) and indx.dtype == bool: + if indx.shape != arr.shape[ax:ax + indx.ndim]: + raise IndexError + + try: + flat_indx = np.ravel_multi_index(np.nonzero(indx), + arr.shape[ax:ax + indx.ndim], mode='raise') + except Exception: + error_unless_broadcast_to_empty = True + # fill with 0s instead, and raise error later + flat_indx = np.array([0] * indx.sum(), dtype=np.intp) + # concatenate axis into a single one: + if indx.ndim != 0: + arr = arr.reshape(arr.shape[:ax] + + (np.prod(arr.shape[ax:ax + indx.ndim]),) + + arr.shape[ax + indx.ndim:]) + indx = flat_indx + else: + # This could be changed, a 0-d boolean index can + # make sense (even outside the 0-d indexed array case) + # Note that originally this is could be interpreted as + # integer in the full integer special case. + raise IndexError + # If the index is a singleton, the bounds check is done + # before the broadcasting. This used to be different in <1.9 + elif indx.ndim == 0 and not ( + -arr.shape[ax] <= indx < arr.shape[ax] + ): + raise IndexError + if indx.ndim == 0: + # The index is a scalar. This used to be two fold, but if + # fancy indexing was active, the check was done later, + # possibly after broadcasting it away (1.7. or earlier). + # Now it is always done. + if indx >= arr.shape[ax] or indx < - arr.shape[ax]: + raise IndexError + if (len(indices) > 0 and + indices[-1][0] == 'f' and + ax != ellipsis_pos): + # NOTE: There could still have been a 0-sized Ellipsis + # between them. Checked that with ellipsis_pos. + indices[-1].append(indx) + else: + # We have a fancy index that is not after an existing one. + # NOTE: A 0-d array triggers this as well, while one may + # expect it to not trigger it, since a scalar would not be + # considered fancy indexing. + num_fancy += 1 + indices.append(['f', indx]) + + if num_fancy > 1 and not no_copy: + # We have to flush the fancy indexes left + new_indices = indices[:] + axes = list(range(arr.ndim)) + fancy_axes = [] + new_indices.insert(0, ['f']) + ni = 0 + ai = 0 + for indx in indices: + ni += 1 + if indx[0] == 'f': + new_indices[0].extend(indx[1:]) + del new_indices[ni] + ni -= 1 + for ax in range(ai, ai + len(indx[1:])): + fancy_axes.append(ax) + axes.remove(ax) + ai += len(indx) - 1 # axis we are at + indices = new_indices + # and now we need to transpose arr: + arr = arr.transpose(*(fancy_axes + axes)) + + # We only have one 'f' index now and arr is transposed accordingly. + # Now handle newaxis by reshaping... + ax = 0 + for indx in indices: + if indx[0] == 'f': + if len(indx) == 1: + continue + # First of all, reshape arr to combine fancy axes into one: + orig_shape = arr.shape + orig_slice = orig_shape[ax:ax + len(indx[1:])] + arr = arr.reshape(arr.shape[:ax] + + (np.prod(orig_slice).astype(int),) + + arr.shape[ax + len(indx[1:]):]) + + # Check if broadcasting works + res = np.broadcast(*indx[1:]) + # unfortunately the indices might be out of bounds. So check + # that first, and use mode='wrap' then. However only if + # there are any indices... + if res.size != 0: + if error_unless_broadcast_to_empty: + raise IndexError + for _indx, _size in zip(indx[1:], orig_slice): + if _indx.size == 0: + continue + if np.any(_indx >= _size) or np.any(_indx < -_size): + raise IndexError + if len(indx[1:]) == len(orig_slice): + if np.prod(orig_slice) == 0: + # Work around for a crash or IndexError with 'wrap' + # in some 0-sized cases. + try: + mi = np.ravel_multi_index(indx[1:], orig_slice, + mode='raise') + except Exception: + # This happens with 0-sized orig_slice (sometimes?) + # here it is a ValueError, but indexing gives a: + raise IndexError('invalid index into 0-sized') + else: + mi = np.ravel_multi_index(indx[1:], orig_slice, + mode='wrap') + else: + # Maybe never happens... + raise ValueError + arr = arr.take(mi.ravel(), axis=ax) + try: + arr = arr.reshape(arr.shape[:ax] + + mi.shape + + arr.shape[ax + 1:]) + except ValueError: + # too many dimensions, probably + raise IndexError + ax += mi.ndim + continue + + # If we are here, we have a 1D array for take: + arr = arr.take(indx[1], axis=ax) + ax += 1 + + return arr, no_copy + + def _check_multi_index(self, arr, index): + """Check a multi index item getting and simple setting. + + Parameters + ---------- + arr : ndarray + Array to be indexed, must be a reshaped arange. + index : tuple of indexing objects + Index being tested. + """ + # Test item getting + try: + mimic_get, no_copy = self._get_multi_index(arr, index) + except Exception as e: + if HAS_REFCOUNT: + prev_refcount = sys.getrefcount(arr) + assert_raises(type(e), arr.__getitem__, index) + assert_raises(type(e), arr.__setitem__, index, 0) + if HAS_REFCOUNT: + assert_equal(prev_refcount, sys.getrefcount(arr)) + return + + self._compare_index_result(arr, index, mimic_get, no_copy) + + def _check_single_index(self, arr, index): + """Check a single index item getting and simple setting. + + Parameters + ---------- + arr : ndarray + Array to be indexed, must be an arange. + index : indexing object + Index being tested. Must be a single index and not a tuple + of indexing objects (see also `_check_multi_index`). + """ + try: + mimic_get, no_copy = self._get_multi_index(arr, (index,)) + except Exception as e: + if HAS_REFCOUNT: + prev_refcount = sys.getrefcount(arr) + assert_raises(type(e), arr.__getitem__, index) + assert_raises(type(e), arr.__setitem__, index, 0) + if HAS_REFCOUNT: + assert_equal(prev_refcount, sys.getrefcount(arr)) + return + + self._compare_index_result(arr, index, mimic_get, no_copy) + + def _compare_index_result(self, arr, index, mimic_get, no_copy): + """Compare mimicked result to indexing result. + """ + arr = arr.copy() + if HAS_REFCOUNT: + startcount = sys.getrefcount(arr) + indexed_arr = arr[index] + assert_array_equal(indexed_arr, mimic_get) + # Check if we got a view, unless its a 0-sized or 0-d array. + # (then its not a view, and that does not matter) + if indexed_arr.size != 0 and indexed_arr.ndim != 0: + assert_(np.may_share_memory(indexed_arr, arr) == no_copy) + # Check reference count of the original array + if HAS_REFCOUNT: + if no_copy: + # refcount increases by one: + assert_equal(sys.getrefcount(arr), startcount + 1) + else: + assert_equal(sys.getrefcount(arr), startcount) + + # Test non-broadcast setitem: + b = arr.copy() + b[index] = mimic_get + 1000 + if b.size == 0: + return # nothing to compare here... + if no_copy and indexed_arr.ndim != 0: + # change indexed_arr in-place to manipulate original: + indexed_arr += 1000 + assert_array_equal(arr, b) + return + # Use the fact that the array is originally an arange: + arr.flat[indexed_arr.ravel()] += 1000 + assert_array_equal(arr, b) + + def test_boolean(self): + a = np.array(5) + assert_equal(a[np.array(True)], 5) + a[np.array(True)] = 1 + assert_equal(a, 1) + # NOTE: This is different from normal broadcasting, as + # arr[boolean_array] works like in a multi index. Which means + # it is aligned to the left. This is probably correct for + # consistency with arr[boolean_array,] also no broadcasting + # is done at all + a = self._create_array() + self._check_multi_index( + a, (np.zeros_like(a, dtype=bool),)) + self._check_multi_index( + a, (np.zeros_like(a, dtype=bool)[..., 0],)) + self._check_multi_index( + a, (np.zeros_like(a, dtype=bool)[None, ...],)) + + def test_multidim(self): + # Automatically test combinations with complex indexes on 2nd (or 1st) + # spot and the simple ones in one other spot. + a = self._create_array() + b = np.empty((3, 0, 5, 6)) + complex_indices = self._create_complex_indices() + simple_indices = [Ellipsis, None, -1, [1], np.array([True]), 'skip'] + fill_indices = [slice(None, None), 0] + + with warnings.catch_warnings(): + # This is so that np.array(True) is not accepted in a full integer + # index, when running the file separately. + warnings.filterwarnings('error', '', DeprecationWarning) + warnings.filterwarnings('error', '', VisibleDeprecationWarning) + + def isskip(idx): + return isinstance(idx, str) and idx == "skip" + + for simple_pos in [0, 2, 3]: + tocheck = [fill_indices, complex_indices, + fill_indices, fill_indices] + tocheck[simple_pos] = simple_indices + for index in product(*tocheck): + index = tuple(i for i in index if not isskip(i)) + self._check_multi_index(a, index) + self._check_multi_index(b, index) + + # Check very simple item getting: + self._check_multi_index(a, (0, 0, 0, 0)) + self._check_multi_index(b, (0, 0, 0, 0)) + # Also check (simple cases of) too many indices: + assert_raises(IndexError, a.__getitem__, (0, 0, 0, 0, 0)) + assert_raises(IndexError, a.__setitem__, (0, 0, 0, 0, 0), 0) + assert_raises(IndexError, a.__getitem__, (0, 0, [1], 0, 0)) + assert_raises(IndexError, a.__setitem__, (0, 0, [1], 0, 0), 0) + + def test_1d(self): + a = np.arange(10) + complex_indices = self._create_complex_indices() + for index in complex_indices: + self._check_single_index(a, index) + + +class TestFloatNonIntegerArgument: + """ + These test that ``TypeError`` is raised when you try to use + non-integers as arguments to for indexing and slicing e.g. ``a[0.0:5]`` + and ``a[0.5]``, or other functions like ``array.reshape(1., -1)``. + + """ + def test_valid_indexing(self): + # These should raise no errors. + a = np.array([[[5]]]) + + a[np.array([0])] + a[[0, 0]] + a[:, [0, 0]] + a[:, 0, :] + a[:, :, :] + + def test_valid_slicing(self): + # These should raise no errors. + a = np.array([[[5]]]) + + a[::] + a[0:] + a[:2] + a[0:2] + a[::2] + a[1::2] + a[:2:2] + a[1:2:2] + + def test_non_integer_argument_errors(self): + a = np.array([[5]]) + + assert_raises(TypeError, np.reshape, a, (1., 1., -1)) + assert_raises(TypeError, np.reshape, a, (np.array(1.), -1)) + assert_raises(TypeError, np.take, a, [0], 1.) + assert_raises(TypeError, np.take, a, [0], np.float64(1.)) + + def test_non_integer_sequence_multiplication(self): + # NumPy scalar sequence multiply should not work with non-integers + def mult(a, b): + return a * b + + assert_raises(TypeError, mult, [1], np.float64(3)) + # following should be OK + mult([1], np.int_(3)) + + def test_reduce_axis_float_index(self): + d = np.zeros((3, 3, 3)) + assert_raises(TypeError, np.min, d, 0.5) + assert_raises(TypeError, np.min, d, (0.5, 1)) + assert_raises(TypeError, np.min, d, (1, 2.2)) + assert_raises(TypeError, np.min, d, (.2, 1.2)) + + +class TestBooleanIndexing: + # Using a boolean as integer argument/indexing is an error. + def test_bool_as_int_argument_errors(self): + a = np.array([[[1]]]) + + assert_raises(TypeError, np.reshape, a, (True, -1)) + assert_raises(TypeError, np.reshape, a, (np.bool(True), -1)) + # Note that operator.index(np.array(True)) does not work, a boolean + # array is thus also deprecated, but not with the same message: + assert_raises(TypeError, operator.index, np.array(True)) + assert_raises(TypeError, operator.index, np.True_) + assert_raises(TypeError, np.take, args=(a, [0], False)) + + def test_boolean_indexing_weirdness(self): + # Weird boolean indexing things + a = np.ones((2, 3, 4)) + assert a[False, True, ...].shape == (0, 2, 3, 4) + assert a[True, [0, 1], True, True, [1], [[2]]].shape == (1, 2) + assert_raises(IndexError, lambda: a[False, [0, 1], ...]) + + def test_boolean_indexing_fast_path(self): + # These used to either give the wrong error, or incorrectly give no + # error. + a = np.ones((3, 3)) + + # This used to incorrectly work (and give an array of shape (0,)) + idx1 = np.array([[False] * 9]) + assert_raises_regex(IndexError, + "boolean index did not match indexed array along axis 0; " + "size of axis is 3 but size of corresponding boolean axis is 1", + lambda: a[idx1]) + + # This used to incorrectly give a ValueError: operands could not be + # broadcast together + idx2 = np.array([[False] * 8 + [True]]) + assert_raises_regex(IndexError, + "boolean index did not match indexed array along axis 0; " + "size of axis is 3 but size of corresponding boolean axis is 1", + lambda: a[idx2]) + + # This is the same as it used to be. The above two should work like this. + idx3 = np.array([[False] * 10]) + assert_raises_regex(IndexError, + "boolean index did not match indexed array along axis 0; " + "size of axis is 3 but size of corresponding boolean axis is 1", + lambda: a[idx3]) + + # This used to give ValueError: non-broadcastable operand + a = np.ones((1, 1, 2)) + idx = np.array([[[True], [False]]]) + assert_raises_regex(IndexError, + "boolean index did not match indexed array along axis 1; " + "size of axis is 1 but size of corresponding boolean axis is 2", + lambda: a[idx]) + + +class TestArrayToIndexDeprecation: + """Creating an index from array not 0-D is an error. + + """ + def test_array_to_index_error(self): + # so no exception is expected. The raising is effectively tested above. + a = np.array([[[1]]]) + + assert_raises(TypeError, operator.index, np.array([1])) + assert_raises(TypeError, np.reshape, a, (a, -1)) + assert_raises(TypeError, np.take, a, [0], a) + + +class TestNonIntegerArrayLike: + """Tests that array_likes only valid if can safely cast to integer. + + For instance, lists give IndexError when they cannot be safely cast to + an integer. + + """ + def test_basic(self): + a = np.arange(10) + + assert_raises(IndexError, a.__getitem__, [0.5, 1.5]) + assert_raises(IndexError, a.__getitem__, (['1', '2'],)) + + # The following is valid + a.__getitem__([]) + + +class TestMultipleEllipsisError: + """An index can only have a single ellipsis. + + """ + def test_basic(self): + a = np.arange(10) + assert_raises(IndexError, lambda: a[..., ...]) + assert_raises(IndexError, a.__getitem__, ((Ellipsis,) * 2,)) + assert_raises(IndexError, a.__getitem__, ((Ellipsis,) * 3,)) + + +class TestCApiAccess: + def test_getitem(self): + subscript = functools.partial(array_indexing, 0) + + # 0-d arrays don't work: + assert_raises(IndexError, subscript, np.ones(()), 0) + # Out of bound values: + assert_raises(IndexError, subscript, np.ones(10), 11) + assert_raises(IndexError, subscript, np.ones(10), -11) + assert_raises(IndexError, subscript, np.ones((10, 10)), 11) + assert_raises(IndexError, subscript, np.ones((10, 10)), -11) + + a = np.arange(10) + assert_array_equal(a[4], subscript(a, 4)) + a = a.reshape(5, 2) + assert_array_equal(a[-4], subscript(a, -4)) + + def test_setitem(self): + assign = functools.partial(array_indexing, 1) + + # Deletion is impossible: + assert_raises(ValueError, assign, np.ones(10), 0) + # 0-d arrays don't work: + assert_raises(IndexError, assign, np.ones(()), 0, 0) + # Out of bound values: + assert_raises(IndexError, assign, np.ones(10), 11, 0) + assert_raises(IndexError, assign, np.ones(10), -11, 0) + assert_raises(IndexError, assign, np.ones((10, 10)), 11, 0) + assert_raises(IndexError, assign, np.ones((10, 10)), -11, 0) + + a = np.arange(10) + assign(a, 4, 10) + assert_(a[4] == 10) + + a = a.reshape(5, 2) + assign(a, 4, 10) + assert_array_equal(a[-1], [10, 10]) + + +class TestFlatiterIndexing: + def test_flatiter_indexing_single_integer(self): + a = np.arange(9).reshape((3, 3)) + assert_array_equal(a.flat[0], 0) + assert_array_equal(a.flat[4], 4) + assert_array_equal(a.flat[-1], 8) + + with pytest.raises(IndexError, match="index 9 is out of bounds"): + a.flat[9] + + def test_flatiter_indexing_slice(self): + a = np.arange(9).reshape((3, 3)) + assert_array_equal(a.flat[:], np.arange(9)) + assert_array_equal(a.flat[:5], np.arange(5)) + assert_array_equal(a.flat[5:10], np.arange(5, 9)) + assert_array_equal(a.flat[::2], np.arange(0, 9, 2)) + assert_array_equal(a.flat[::-1], np.arange(8, -1, -1)) + assert_array_equal(a.flat[10:5], np.array([])) + + assert_array_equal(a.flat[()], np.arange(9)) + assert_array_equal(a.flat[...], np.arange(9)) + + def test_flatiter_indexing_boolean(self): + a = np.arange(9).reshape((3, 3)) + + with pytest.warns(DeprecationWarning, match="0-dimensional boolean index"): + assert_array_equal(a.flat[True], 0) + with pytest.warns(DeprecationWarning, match="0-dimensional boolean index"): + assert_array_equal(a.flat[False], np.array([])) + + mask = np.zeros(len(a.flat), dtype=bool) + mask[::2] = True + assert_array_equal(a.flat[mask], np.arange(0, 9, 2)) + + wrong_mask = np.zeros(len(a.flat) + 1, dtype=bool) + with pytest.raises(IndexError, + match="boolean index did not match indexed flat iterator"): + a.flat[wrong_mask] + + def test_flatiter_indexing_fancy(self): + a = np.arange(9).reshape((3, 3)) + + indices = np.array([1, 3, 5]) + assert_array_equal(a.flat[indices], indices) + + assert_array_equal(a.flat[[-1, -2]], np.array([8, 7])) + + indices_2d = np.array([[1, 2], [3, 4]]) + assert_array_equal(a.flat[indices_2d], indices_2d) + + assert_array_equal(a.flat[[True, 1]], np.array([1, 1])) + + assert_array_equal(a.flat[[]], np.array([], dtype=a.dtype)) + + with pytest.raises(IndexError, + match="boolean indices for iterators are not supported"): + a.flat[[True, True]] + + a = np.arange(3) + with pytest.raises(IndexError, + match="boolean indices for iterators are not supported"): + a.flat[[True, False, True]] + assert_array_equal(a.flat[np.asarray([True, False, True])], np.array([0, 2])) + + def test_flatiter_indexing_not_supported_newaxis_mutlidimensional_float(self): + a = np.arange(9).reshape((3, 3)) + with pytest.raises(IndexError, + match=r"only integers, slices \(`:`\), " + r"ellipsis \(`\.\.\.`\) and " + r"integer or boolean arrays are valid indices"): + a.flat[None] + + with pytest.raises(IndexError, + match=r"too many indices for flat iterator: flat iterator " + r"is 1-dimensional, but 2 were indexed"): + a.flat[1, 2] + + with pytest.warns(DeprecationWarning, + match="Invalid non-array indices for iterator objects are " + "deprecated"): + assert_array_equal(a.flat[[1.0, 2.0]], np.array([1, 2])) + + def test_flatiter_assign_single_integer(self): + a = np.arange(9).reshape((3, 3)) + + a.flat[0] = 10 + assert_array_equal(a, np.array([[10, 1, 2], [3, 4, 5], [6, 7, 8]])) + + a.flat[4] = 20 + assert_array_equal(a, np.array([[10, 1, 2], [3, 20, 5], [6, 7, 8]])) + + a.flat[-1] = 30 + assert_array_equal(a, np.array([[10, 1, 2], [3, 20, 5], [6, 7, 30]])) + + with pytest.raises(IndexError, match="index 9 is out of bounds"): + a.flat[9] = 40 + + def test_flatiter_indexing_slice_assign(self): + a = np.arange(9).reshape((3, 3)) + a.flat[:] = 10 + assert_array_equal(a, np.full((3, 3), 10)) + + a = np.arange(9).reshape((3, 3)) + a.flat[:5] = 20 + assert_array_equal(a, np.array([[20, 20, 20], [20, 20, 5], [6, 7, 8]])) + + a = np.arange(9).reshape((3, 3)) + a.flat[5:10] = 30 + assert_array_equal(a, np.array([[0, 1, 2], [3, 4, 30], [30, 30, 30]])) + + a = np.arange(9).reshape((3, 3)) + a.flat[::2] = 40 + assert_array_equal(a, np.array([[40, 1, 40], [3, 40, 5], [40, 7, 40]])) + + a = np.arange(9).reshape((3, 3)) + a.flat[::-1] = 50 + assert_array_equal(a, np.full((3, 3), 50)) + + a = np.arange(9).reshape((3, 3)) + a.flat[10:5] = 60 + assert_array_equal(a, np.arange(9).reshape((3, 3))) + + a = np.arange(9).reshape((3, 3)) + with pytest.raises(IndexError, + match="Assigning to a flat iterator with a 0-D index"): + a.flat[()] = 70 + + a = np.arange(9).reshape((3, 3)) + a.flat[...] = 80 + assert_array_equal(a, np.full((3, 3), 80)) + + def test_flatiter_indexing_boolean_assign(self): + a = np.arange(9).reshape((3, 3)) + with pytest.warns(DeprecationWarning, match="0-dimensional boolean index"): + a.flat[True] = 10 + assert_array_equal(a, np.array([[10, 1, 2], [3, 4, 5], [6, 7, 8]])) + + a = np.arange(9).reshape((3, 3)) + with pytest.warns(DeprecationWarning, match="0-dimensional boolean index"): + a.flat[False] = 20 + assert_array_equal(a, np.arange(9).reshape((3, 3))) + + a = np.arange(9).reshape((3, 3)) + mask = np.zeros(len(a.flat), dtype=bool) + mask[::2] = True + a.flat[mask] = 30 + assert_array_equal(a, np.array([[30, 1, 30], [3, 30, 5], [30, 7, 30]])) + + wrong_mask = np.zeros(len(a.flat) + 1, dtype=bool) + with pytest.raises(IndexError, + match="boolean index did not match indexed flat iterator"): + a.flat[wrong_mask] = 40 + + def test_flatiter_indexing_fancy_assign(self): + a = np.arange(9).reshape((3, 3)) + indices = np.array([1, 3, 5]) + a.flat[indices] = 10 + assert_array_equal(a, np.array([[0, 10, 2], [10, 4, 10], [6, 7, 8]])) + + a.flat[[-1, -2]] = 20 + assert_array_equal(a, np.array([[0, 10, 2], [10, 4, 10], [6, 20, 20]])) + + a = np.arange(9).reshape((3, 3)) + indices_2d = np.array([[1, 2], [3, 4]]) + a.flat[indices_2d] = 30 + assert_array_equal(a, np.array([[0, 30, 30], [30, 30, 5], [6, 7, 8]])) + + a.flat[[True, 1]] = 40 + assert_array_equal(a, np.array([[0, 40, 30], [30, 30, 5], [6, 7, 8]])) + + with pytest.raises(IndexError, + match="boolean indices for iterators are not supported"): + a.flat[[True, True]] = 50 + + a = np.arange(3) + with pytest.raises(IndexError, + match="boolean indices for iterators are not supported"): + a.flat[[True, False, True]] = 20 + a.flat[np.asarray([True, False, True])] = 20 + assert_array_equal(a, np.array([20, 1, 20])) + + def test_flatiter_indexing_fancy_int16_dtype(self): + a = np.arange(9).reshape((3, 3)) + indices = np.array([1, 3, 5], dtype=np.int16) + assert_array_equal(a.flat[indices], np.array([1, 3, 5])) + + a.flat[indices] = 10 + assert_array_equal(a, np.array([[0, 10, 2], [10, 4, 10], [6, 7, 8]])) + + def test_flatiter_indexing_not_supported_newaxis_mutlid_float_assign(self): + a = np.arange(9).reshape((3, 3)) + with pytest.raises(IndexError, + match=r"only integers, slices \(`:`\), " + r"ellipsis \(`\.\.\.`\) and " + r"integer or boolean arrays are valid indices"): + a.flat[None] = 10 + + a.flat[[1, 2]] = 10 + assert_array_equal(a, np.array([[0, 10, 10], [3, 4, 5], [6, 7, 8]])) + + with pytest.warns(DeprecationWarning, + match="Invalid non-array indices for iterator objects are " + "deprecated"): + a.flat[[1.0, 2.0]] = 20 + assert_array_equal(a, np.array([[0, 20, 20], [3, 4, 5], [6, 7, 8]])) + + def test_flat_index_on_flatiter(self): + a = np.arange(9).reshape((3, 3)) + b = np.array([0, 5, 6]) + assert_equal(a.flat[b.flat], np.array([0, 5, 6])) + + def test_empty_string_flat_index_on_flatiter(self): + a = np.arange(9).reshape((3, 3)) + b = np.array([], dtype="S") + # This is arguably incorrect, and should be removed (ideally with + # deprecation). But it matches the array path and comes from not + # distinguishing `arr[np.array([]).flat]` and `arr[[]]` and the latter + # must pass. + assert_equal(a.flat[b.flat], np.array([])) + + def test_nonempty_string_flat_index_on_flatiter(self): + a = np.arange(9).reshape((3, 3)) + b = np.array(["a"], dtype="S") + with pytest.raises(IndexError, + match=r"only integers, slices \(`:`\), ellipsis \(`\.\.\.`\) " + r"and integer or boolean arrays are valid indices"): + a.flat[b.flat] + + +@pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO") +@pytest.mark.xfail(IS_PYPY, reason="PyPy does not modify tp_doc") +@pytest.mark.parametrize("methodname", ["__array__", "copy"]) +def test_flatiter_method_signatures(methodname: str): + method = getattr(np.flatiter, methodname) + assert callable(method) + + try: + sig = inspect.signature(method) + except ValueError as e: + pytest.fail(f"Could not get signature for np.flatiter.{methodname}: {e}") + + assert "self" in sig.parameters + assert sig.parameters["self"].kind is inspect.Parameter.POSITIONAL_ONLY diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_item_selection.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_item_selection.py new file mode 100644 index 0000000000000000000000000000000000000000..79fb82dde591aa45e6b2b140ad57534e47778c43 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_item_selection.py @@ -0,0 +1,167 @@ +import sys + +import pytest + +import numpy as np +from numpy.testing import HAS_REFCOUNT, assert_, assert_array_equal, assert_raises + + +class TestTake: + def test_simple(self): + a = [[1, 2], [3, 4]] + a_str = [[b'1', b'2'], [b'3', b'4']] + modes = ['raise', 'wrap', 'clip'] + indices = [-1, 4] + index_arrays = [np.empty(0, dtype=np.intp), + np.empty((), dtype=np.intp), + np.empty((1, 1), dtype=np.intp)] + real_indices = {'raise': {-1: 1, 4: IndexError}, + 'wrap': {-1: 1, 4: 0}, + 'clip': {-1: 0, 4: 1}} + # Currently all types but object, use the same function generation. + # So it should not be necessary to test all. However test also a non + # refcounted struct on top of object, which has a size that hits the + # default (non-specialized) path. + types = int, object, np.dtype([('', 'i2', 3)]) + for t in types: + # ta works, even if the array may be odd if buffer interface is used + ta = np.array(a if np.issubdtype(t, np.number) else a_str, dtype=t) + tresult = list(ta.T.copy()) + for index_array in index_arrays: + if index_array.size != 0: + tresult[0].shape = (2,) + index_array.shape + tresult[1].shape = (2,) + index_array.shape + for mode in modes: + for index in indices: + real_index = real_indices[mode][index] + if real_index is IndexError and index_array.size != 0: + index_array.put(0, index) + assert_raises(IndexError, ta.take, index_array, + mode=mode, axis=1) + elif index_array.size != 0: + index_array.put(0, index) + res = ta.take(index_array, mode=mode, axis=1) + assert_array_equal(res, tresult[real_index]) + else: + res = ta.take(index_array, mode=mode, axis=1) + assert_(res.shape == (2,) + index_array.shape) + + def test_refcounting(self): + objects = [object() for i in range(10)] + if HAS_REFCOUNT: + orig_rcs = [sys.getrefcount(o) for o in objects] + for mode in ('raise', 'clip', 'wrap'): + a = np.array(objects) + b = np.array([2, 2, 4, 5, 3, 5]) + a.take(b, out=a[:6], mode=mode) + del a + if HAS_REFCOUNT: + assert_(all(sys.getrefcount(o) == rc + 1 + for o, rc in zip(objects, orig_rcs))) + # not contiguous, example: + a = np.array(objects * 2)[::2] + a.take(b, out=a[:6], mode=mode) + del a + if HAS_REFCOUNT: + assert_(all(sys.getrefcount(o) == rc + 1 + for o, rc in zip(objects, orig_rcs))) + + def test_unicode_mode(self): + d = np.arange(10) + k = b'\xc3\xa4'.decode("UTF8") + assert_raises(ValueError, d.take, 5, mode=k) + + def test_empty_partition(self): + # In reference to github issue #6530 + a_original = np.array([0, 2, 4, 6, 8, 10]) + a = a_original.copy() + + # An empty partition should be a successful no-op + a.partition(np.array([], dtype=np.int16)) + + assert_array_equal(a, a_original) + + def test_empty_argpartition(self): + # In reference to github issue #6530 + a = np.array([0, 2, 4, 6, 8, 10]) + a = a.argpartition(np.array([], dtype=np.int16)) + + b = np.array([0, 1, 2, 3, 4, 5]) + assert_array_equal(a, b) + + +class TestPutMask: + @pytest.mark.parametrize("dtype", list(np.typecodes["All"]) + ["i,O"]) + def test_simple(self, dtype): + if dtype.lower() == "m": + dtype += "8[ns]" + + # putmask is weird and doesn't care about value length (even shorter) + vals = np.arange(1001).astype(dtype=dtype) + + mask = np.random.randint(2, size=1000).astype(bool) + # Use vals.dtype in case of flexible dtype (i.e. string) + arr = np.zeros(1000, dtype=vals.dtype) + zeros = arr.copy() + + np.putmask(arr, mask, vals) + assert_array_equal(arr[mask], vals[:len(mask)][mask]) + assert_array_equal(arr[~mask], zeros[~mask]) + + @pytest.mark.parametrize("dtype", list(np.typecodes["All"])[1:] + ["i,O"]) + @pytest.mark.parametrize("mode", ["raise", "wrap", "clip"]) + def test_empty(self, dtype, mode): + arr = np.zeros(1000, dtype=dtype) + arr_copy = arr.copy() + mask = np.random.randint(2, size=1000).astype(bool) + + # Allowing empty values like this is weird... + np.put(arr, mask, []) + assert_array_equal(arr, arr_copy) + + +class TestPut: + @pytest.mark.parametrize("dtype", list(np.typecodes["All"])[1:] + ["i,O"]) + @pytest.mark.parametrize("mode", ["raise", "wrap", "clip"]) + def test_simple(self, dtype, mode): + if dtype.lower() == "m": + dtype += "8[ns]" + + # put is weird and doesn't care about value length (even shorter) + vals = np.arange(1001).astype(dtype=dtype) + + # Use vals.dtype in case of flexible dtype (i.e. string) + arr = np.zeros(1000, dtype=vals.dtype) + zeros = arr.copy() + + if mode == "clip": + # Special because 0 and -1 value are "reserved" for clip test + indx = np.random.permutation(len(arr) - 2)[:-500] + 1 + + indx[-1] = 0 + indx[-2] = len(arr) - 1 + indx_put = indx.copy() + indx_put[-1] = -1389 + indx_put[-2] = 1321 + else: + # Avoid duplicates (for simplicity) and fill half only + indx = np.random.permutation(len(arr) - 3)[:-500] + indx_put = indx + if mode == "wrap": + indx_put = indx_put + len(arr) + + np.put(arr, indx_put, vals, mode=mode) + assert_array_equal(arr[indx], vals[:len(indx)]) + untouched = np.ones(len(arr), dtype=bool) + untouched[indx] = False + assert_array_equal(arr[untouched], zeros[:untouched.sum()]) + + @pytest.mark.parametrize("dtype", list(np.typecodes["All"])[1:] + ["i,O"]) + @pytest.mark.parametrize("mode", ["raise", "wrap", "clip"]) + def test_empty(self, dtype, mode): + arr = np.zeros(1000, dtype=dtype) + arr_copy = arr.copy() + + # Allowing empty values like this is weird... + np.put(arr, [1, 2, 3], []) + assert_array_equal(arr, arr_copy) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_limited_api.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_limited_api.py new file mode 100644 index 0000000000000000000000000000000000000000..984210e53af70f5b653c55b30cd32201598b9f77 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_limited_api.py @@ -0,0 +1,102 @@ +import os +import subprocess +import sys +import sysconfig + +import pytest + +from numpy.testing import IS_EDITABLE, IS_PYPY, IS_WASM, NOGIL_BUILD + +# This import is copied from random.tests.test_extending +try: + import cython + from Cython.Compiler.Version import version as cython_version +except ImportError: + cython = None +else: + from numpy._utils import _pep440 + + # Note: keep in sync with the one in pyproject.toml + required_version = "3.0.6" + if _pep440.parse(cython_version) < _pep440.Version(required_version): + # too old or wrong cython, skip the test + cython = None + +pytestmark = pytest.mark.skipif(cython is None, reason="requires cython") + + +if IS_EDITABLE: + pytest.skip( + "Editable install doesn't support tests with a compile step", + allow_module_level=True + ) + + +@pytest.fixture(scope='module') +def install_temp(tmpdir_factory): + # Based in part on test_cython from random.tests.test_extending + if IS_WASM: + pytest.skip("No subprocess") + + srcdir = os.path.join(os.path.dirname(__file__), 'examples', 'limited_api') + build_dir = tmpdir_factory.mktemp("limited_api") / "build" + os.makedirs(build_dir, exist_ok=True) + # Ensure we use the correct Python interpreter even when `meson` is + # installed in a different Python environment (see gh-24956) + native_file = str(build_dir / 'interpreter-native-file.ini') + with open(native_file, 'w') as f: + f.write("[binaries]\n") + f.write(f"python = '{sys.executable}'\n") + f.write(f"python3 = '{sys.executable}'") + + try: + subprocess.check_call(["meson", "--version"]) + except FileNotFoundError: + pytest.skip("No usable 'meson' found") + if sysconfig.get_platform() == "win-arm64": + pytest.skip("Meson unable to find MSVC linker on win-arm64") + if sys.platform == "win32": + subprocess.check_call(["meson", "setup", + "--werror", + "--buildtype=release", + "--vsenv", "--native-file", native_file, + str(srcdir)], + cwd=build_dir, + ) + else: + subprocess.check_call(["meson", "setup", "--werror", + "--native-file", native_file, str(srcdir)], + cwd=build_dir + ) + try: + subprocess.check_call( + ["meson", "compile", "-vv"], cwd=build_dir) + except subprocess.CalledProcessError as p: + print(f"{p.stdout=}") + print(f"{p.stderr=}") + raise + + sys.path.append(str(build_dir)) + + +@pytest.mark.skipif(IS_WASM, reason="Can't start subprocess") +@pytest.mark.xfail( + sysconfig.get_config_var("Py_DEBUG"), + reason=( + "Py_LIMITED_API is incompatible with Py_DEBUG, Py_TRACE_REFS, " + "and Py_REF_DEBUG" + ), +) +@pytest.mark.xfail( + NOGIL_BUILD, + reason="Py_GIL_DISABLED builds do not currently support the limited API", +) +@pytest.mark.skipif(IS_PYPY, reason="no support for limited API in PyPy") +def test_limited_api(install_temp): + """Test building a third-party C extension with the limited API + and building a cython extension with the limited API + """ + + import limited_api1 # Earliest (3.6) # noqa: F401 + import limited_api2 # cython # noqa: F401 + import limited_api_latest # Latest version (current Python) # noqa: F401 diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_longdouble.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_longdouble.py new file mode 100644 index 0000000000000000000000000000000000000000..a7aa9145711a0de564220ac58ebbff7b53892dbb --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_longdouble.py @@ -0,0 +1,370 @@ +import platform +import warnings + +import pytest + +import numpy as np +from numpy._core.tests._locales import CommaDecimalPointLocale +from numpy.testing import ( + IS_MUSL, + assert_, + assert_array_equal, + assert_equal, + assert_raises, + temppath, +) + +LD_INFO = np.finfo(np.longdouble) +longdouble_longer_than_double = (LD_INFO.eps < np.finfo(np.double).eps) + + +_o = 1 + LD_INFO.eps +string_to_longdouble_inaccurate = (_o != np.longdouble(str(_o))) +del _o + + +def test_scalar_extraction(): + """Confirm that extracting a value doesn't convert to python float""" + o = 1 + LD_INFO.eps + a = np.array([o, o, o]) + assert_equal(a[1], o) + + +# Conversions string -> long double + +# 0.1 not exactly representable in base 2 floating point. +repr_precision = len(repr(np.longdouble(0.1))) +# +2 from macro block starting around line 842 in scalartypes.c.src. + + +@pytest.mark.skipif(IS_MUSL, + reason="test flaky on musllinux") +@pytest.mark.skipif(LD_INFO.precision + 2 >= repr_precision, + reason="repr precision not enough to show eps") +def test_str_roundtrip(): + # We will only see eps in repr if within printing precision. + o = 1 + LD_INFO.eps + assert_equal(np.longdouble(str(o)), o, f"str was {str(o)}") + + +@pytest.mark.skipif(string_to_longdouble_inaccurate, reason="Need strtold_l") +def test_str_roundtrip_bytes(): + o = 1 + LD_INFO.eps + assert_equal(np.longdouble(str(o).encode("ascii")), o) + + +@pytest.mark.skipif(string_to_longdouble_inaccurate, reason="Need strtold_l") +@pytest.mark.parametrize("strtype", (np.str_, np.bytes_, str, bytes)) +def test_array_and_stringlike_roundtrip(strtype): + """ + Test that string representations of long-double roundtrip both + for array casting and scalar coercion, see also gh-15608. + """ + o = 1 + LD_INFO.eps + + if strtype in (np.bytes_, bytes): + o_str = strtype(str(o).encode("ascii")) + else: + o_str = strtype(str(o)) + + # Test that `o` is correctly coerced from the string-like + assert o == np.longdouble(o_str) + + # Test that arrays also roundtrip correctly: + o_strarr = np.asarray([o] * 3, dtype=strtype) + assert (o == o_strarr.astype(np.longdouble)).all() + + # And array coercion and casting to string give the same as scalar repr: + assert (o_strarr == o_str).all() + assert (np.asarray([o] * 3).astype(strtype) == o_str).all() + + +def test_bogus_string(): + assert_raises(ValueError, np.longdouble, "spam") + assert_raises(ValueError, np.longdouble, "1.0 flub") + + +@pytest.mark.skipif(string_to_longdouble_inaccurate, reason="Need strtold_l") +def test_fromstring(): + o = 1 + LD_INFO.eps + s = (" " + str(o)) * 5 + a = np.array([o] * 5) + assert_equal(np.fromstring(s, sep=" ", dtype=np.longdouble), a, + err_msg=f"reading '{s}'") + + +def test_fromstring_complex(): + for ctype in ["complex", "cdouble"]: + # Check spacing between separator + assert_equal(np.fromstring("1, 2 , 3 ,4", sep=",", dtype=ctype), + np.array([1., 2., 3., 4.])) + # Real component not specified + assert_equal(np.fromstring("1j, -2j, 3j, 4e1j", sep=",", dtype=ctype), + np.array([1.j, -2.j, 3.j, 40.j])) + # Both components specified + assert_equal(np.fromstring("1+1j,2-2j, -3+3j, -4e1+4j", sep=",", dtype=ctype), + np.array([1. + 1.j, 2. - 2.j, - 3. + 3.j, - 40. + 4j])) + # Spaces at wrong places + with assert_raises(ValueError): + np.fromstring("1+2 j,3", dtype=ctype, sep=",") + with assert_raises(ValueError): + np.fromstring("1+ 2j,3", dtype=ctype, sep=",") + with assert_raises(ValueError): + np.fromstring("1 +2j,3", dtype=ctype, sep=",") + with assert_raises(ValueError): + np.fromstring("1+j", dtype=ctype, sep=",") + with assert_raises(ValueError): + np.fromstring("1+", dtype=ctype, sep=",") + with assert_raises(ValueError): + np.fromstring("1j+1", dtype=ctype, sep=",") + + +def test_fromstring_bogus(): + with assert_raises(ValueError): + np.fromstring("1. 2. 3. flop 4.", dtype=float, sep=" ") + + +def test_fromstring_empty(): + with assert_raises(ValueError): + np.fromstring("xxxxx", sep="x") + + +def test_fromstring_missing(): + with assert_raises(ValueError): + np.fromstring("1xx3x4x5x6", sep="x") + + +class TestFileBased: + + ldbl = 1 + LD_INFO.eps + tgt = np.array([ldbl] * 5) + out = ''.join([str(t) + '\n' for t in tgt]) + + def test_fromfile_bogus(self): + with temppath() as path: + with open(path, 'w') as f: + f.write("1. 2. 3. flop 4.\n") + + with assert_raises(ValueError): + np.fromfile(path, dtype=float, sep=" ") + + def test_fromfile_complex(self): + for ctype in ["complex", "cdouble"]: + # Check spacing between separator and only real component specified + with temppath() as path: + with open(path, 'w') as f: + f.write("1, 2 , 3 ,4\n") + + res = np.fromfile(path, dtype=ctype, sep=",") + assert_equal(res, np.array([1., 2., 3., 4.])) + + # Real component not specified + with temppath() as path: + with open(path, 'w') as f: + f.write("1j, -2j, 3j, 4e1j\n") + + res = np.fromfile(path, dtype=ctype, sep=",") + assert_equal(res, np.array([1.j, -2.j, 3.j, 40.j])) + + # Both components specified + with temppath() as path: + with open(path, 'w') as f: + f.write("1+1j,2-2j, -3+3j, -4e1+4j\n") + + res = np.fromfile(path, dtype=ctype, sep=",") + assert_equal(res, np.array([1. + 1.j, 2. - 2.j, - 3. + 3.j, - 40. + 4j])) + + # Spaces at wrong places + with temppath() as path: + with open(path, 'w') as f: + f.write("1+2 j,3\n") + + with assert_raises(ValueError): + np.fromfile(path, dtype=ctype, sep=",") + + # Spaces at wrong places + with temppath() as path: + with open(path, 'w') as f: + f.write("1+ 2j,3\n") + + with assert_raises(ValueError): + np.fromfile(path, dtype=ctype, sep=",") + + # Spaces at wrong places + with temppath() as path: + with open(path, 'w') as f: + f.write("1 +2j,3\n") + + with assert_raises(ValueError): + np.fromfile(path, dtype=ctype, sep=",") + + # Wrong sep + with temppath() as path: + with open(path, 'w') as f: + f.write("1+j\n") + + with assert_raises(ValueError): + np.fromfile(path, dtype=ctype, sep=",") + + # Wrong sep + with temppath() as path: + with open(path, 'w') as f: + f.write("1+\n") + + with assert_raises(ValueError): + np.fromfile(path, dtype=ctype, sep=",") + + # Wrong sep + with temppath() as path: + with open(path, 'w') as f: + f.write("1j+1\n") + + with assert_raises(ValueError): + np.fromfile(path, dtype=ctype, sep=",") + + @pytest.mark.skipif(string_to_longdouble_inaccurate, + reason="Need strtold_l") + def test_fromfile(self): + with temppath() as path: + with open(path, 'w') as f: + f.write(self.out) + res = np.fromfile(path, dtype=np.longdouble, sep="\n") + assert_equal(res, self.tgt) + + @pytest.mark.skipif(string_to_longdouble_inaccurate, + reason="Need strtold_l") + def test_genfromtxt(self): + with temppath() as path: + with open(path, 'w') as f: + f.write(self.out) + res = np.genfromtxt(path, dtype=np.longdouble) + assert_equal(res, self.tgt) + + @pytest.mark.skipif(string_to_longdouble_inaccurate, + reason="Need strtold_l") + def test_loadtxt(self): + with temppath() as path: + with open(path, 'w') as f: + f.write(self.out) + res = np.loadtxt(path, dtype=np.longdouble) + assert_equal(res, self.tgt) + + @pytest.mark.skipif(string_to_longdouble_inaccurate, + reason="Need strtold_l") + def test_tofile_roundtrip(self): + with temppath() as path: + self.tgt.tofile(path, sep=" ") + res = np.fromfile(path, dtype=np.longdouble, sep=" ") + assert_equal(res, self.tgt) + + +# Conversions long double -> string + + +def test_str_exact(): + o = 1 + LD_INFO.eps + assert_(str(o) != '1') + + +@pytest.mark.skipif(longdouble_longer_than_double, reason="BUG #2376") +@pytest.mark.skipif(string_to_longdouble_inaccurate, + reason="Need strtold_l") +def test_format(): + assert_(f"{1 + LD_INFO.eps:.40g}" != '1') + + +@pytest.mark.skipif(longdouble_longer_than_double, reason="BUG #2376") +@pytest.mark.skipif(string_to_longdouble_inaccurate, + reason="Need strtold_l") +def test_percent(): + o = 1 + LD_INFO.eps + assert_(f"{o:.40g}" != '1') + + +@pytest.mark.skipif(longdouble_longer_than_double, + reason="array repr problem") +@pytest.mark.skipif(string_to_longdouble_inaccurate, + reason="Need strtold_l") +def test_array_repr(): + o = 1 + LD_INFO.eps + a = np.array([o]) + b = np.array([1], dtype=np.longdouble) + if not np.all(a != b): + raise ValueError("precision loss creating arrays") + with np.printoptions(precision=LD_INFO.precision + 1): + assert_(repr(a) != repr(b)) + +# +# Locale tests: scalar types formatting should be independent of the locale +# + +class TestCommaDecimalPointLocale(CommaDecimalPointLocale): + + def test_str_roundtrip_foreign(self): + o = 1.5 + assert_equal(o, np.longdouble(str(o))) + + def test_fromstring_foreign_repr(self): + f = 1.234 + a = np.fromstring(repr(f), dtype=float, sep=" ") + assert_equal(a[0], f) + + def test_fromstring_foreign(self): + s = "1.234" + a = np.fromstring(s, dtype=np.longdouble, sep=" ") + assert_equal(a[0], np.longdouble(s)) + + def test_fromstring_foreign_sep(self): + a = np.array([1, 2, 3, 4]) + b = np.fromstring("1,2,3,4,", dtype=np.longdouble, sep=",") + assert_array_equal(a, b) + + def test_fromstring_foreign_value(self): + with assert_raises(ValueError): + np.fromstring("1,234", dtype=np.longdouble, sep=" ") + + +@pytest.mark.parametrize("int_val", [ + # cases discussed in gh-10723 + # and gh-9968 + 2 ** 1024, 0]) +def test_longdouble_from_int(int_val): + # for issue gh-9968 + str_val = str(int_val) + # we'll expect a RuntimeWarning on platforms + # with np.longdouble equivalent to np.double + # for large integer input + with warnings.catch_warnings(record=True) as w: + warnings.filterwarnings('always', '', RuntimeWarning) + # can be inf==inf on some platforms + assert np.longdouble(int_val) == np.longdouble(str_val) + # we can't directly compare the int and + # max longdouble value on all platforms + if np.allclose(np.finfo(np.longdouble).max, + np.finfo(np.double).max) and w: + assert w[0].category is RuntimeWarning + +@pytest.mark.parametrize("bool_val", [ + True, False]) +def test_longdouble_from_bool(bool_val): + assert np.longdouble(bool_val) == np.longdouble(int(bool_val)) + + +@pytest.mark.skipif( + not (IS_MUSL and platform.machine() == "x86_64"), + reason="only need to run on musllinux_x86_64" +) +def test_musllinux_x86_64_signature(): + # this test may fail if you're emulating musllinux_x86_64 on a different + # architecture, but should pass natively. + known_sigs = [b'\xcd\xcc\xcc\xcc\xcc\xcc\xcc\xcc\xfb\xbf'] + sig = (np.longdouble(-1.0) / np.longdouble(10.0)) + sig = sig.view(sig.dtype.newbyteorder('<')).tobytes()[:10] + assert sig in known_sigs + + +def test_eps_positive(): + # np.finfo('g').eps should be positive on all platforms. If this isn't true + # then something may have gone wrong with the MachArLike, e.g. if + # np._core.getlimits._discovered_machar didn't work properly + assert np.finfo(np.longdouble).eps > 0. diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_mem_overlap.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_mem_overlap.py new file mode 100644 index 0000000000000000000000000000000000000000..240ea62850ee7b90f2502215613f3d869e821ea3 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_mem_overlap.py @@ -0,0 +1,933 @@ +import itertools + +import pytest + +import numpy as np +from numpy._core import _umath_tests +from numpy._core._multiarray_tests import internal_overlap, solve_diophantine +from numpy.lib.stride_tricks import as_strided +from numpy.testing import assert_, assert_array_equal, assert_equal, assert_raises + +ndims = 2 +size = 10 +shape = tuple([size] * ndims) + +MAY_SHARE_BOUNDS = 0 +MAY_SHARE_EXACT = -1 + + +def _indices_for_nelems(nelems): + """Returns slices of length nelems, from start onwards, in direction sign.""" + + if nelems == 0: + return [size // 2] # int index + + res = [] + for step in (1, 2): + for sign in (-1, 1): + start = size // 2 - nelems * step * sign // 2 + stop = start + nelems * step * sign + res.append(slice(start, stop, step * sign)) + + return res + + +def _indices_for_axis(): + """Returns (src, dst) pairs of indices.""" + + res = [] + for nelems in (0, 2, 3): + ind = _indices_for_nelems(nelems) + res.extend(itertools.product(ind, ind)) # all assignments of size "nelems" + + return res + + +def _indices(ndims): + """Returns ((axis0_src, axis0_dst), (axis1_src, axis1_dst), ... ) index pairs.""" + + ind = _indices_for_axis() + return itertools.product(ind, repeat=ndims) + + +def _check_assignment(srcidx, dstidx): + """Check assignment arr[dstidx] = arr[srcidx] works.""" + + arr = np.arange(np.prod(shape)).reshape(shape) + + cpy = arr.copy() + + cpy[dstidx] = arr[srcidx] + arr[dstidx] = arr[srcidx] + + assert_(np.all(arr == cpy), + f'assigning arr[{dstidx}] = arr[{srcidx}]') + + +def test_overlapping_assignments(): + # Test automatically generated assignments which overlap in memory. + + inds = _indices(ndims) + + for ind in inds: + srcidx = tuple(a[0] for a in ind) + dstidx = tuple(a[1] for a in ind) + + _check_assignment(srcidx, dstidx) + + +@pytest.mark.slow +def test_diophantine_fuzz(): + # Fuzz test the diophantine solver + rng = np.random.RandomState(1234) + + max_int = np.iinfo(np.intp).max + + for ndim in range(10): + feasible_count = 0 + infeasible_count = 0 + + min_count = 500 // (ndim + 1) + + while min(feasible_count, infeasible_count) < min_count: + # Ensure big and small integer problems + A_max = 1 + rng.randint(0, 11, dtype=np.intp)**6 + U_max = rng.randint(0, 11, dtype=np.intp)**6 + + A_max = min(max_int, A_max) + U_max = min(max_int - 1, U_max) + + A = tuple(int(rng.randint(1, A_max + 1, dtype=np.intp)) + for j in range(ndim)) + U = tuple(int(rng.randint(0, U_max + 2, dtype=np.intp)) + for j in range(ndim)) + + b_ub = min(max_int - 2, sum(a * ub for a, ub in zip(A, U))) + b = int(rng.randint(-1, b_ub + 2, dtype=np.intp)) + + if ndim == 0 and feasible_count < min_count: + b = 0 + + X = solve_diophantine(A, U, b) + + if X is None: + # Check the simplified decision problem agrees + X_simplified = solve_diophantine(A, U, b, simplify=1) + assert_(X_simplified is None, (A, U, b, X_simplified)) + + # Check no solution exists (provided the problem is + # small enough so that brute force checking doesn't + # take too long) + ranges = tuple(range(0, a * ub + 1, a) for a, ub in zip(A, U)) + + size = 1 + for r in ranges: + size *= len(r) + if size < 100000: + assert_(not any(sum(w) == b for w in itertools.product(*ranges))) + infeasible_count += 1 + else: + # Check the simplified decision problem agrees + X_simplified = solve_diophantine(A, U, b, simplify=1) + assert_(X_simplified is not None, (A, U, b, X_simplified)) + + # Check validity + assert_(sum(a * x for a, x in zip(A, X)) == b) + assert_(all(0 <= x <= ub for x, ub in zip(X, U))) + feasible_count += 1 + + +def test_diophantine_overflow(): + # Smoke test integer overflow detection + max_intp = np.iinfo(np.intp).max + max_int64 = np.iinfo(np.int64).max + + if max_int64 <= max_intp: + # Check that the algorithm works internally in 128-bit; + # solving this problem requires large intermediate numbers + A = (max_int64 // 2, max_int64 // 2 - 10) + U = (max_int64 // 2, max_int64 // 2 - 10) + b = 2 * (max_int64 // 2) - 10 + + assert_equal(solve_diophantine(A, U, b), (1, 1)) + + +def check_may_share_memory_exact(a, b): + got = np.may_share_memory(a, b, max_work=MAY_SHARE_EXACT) + + assert_equal(np.may_share_memory(a, b), + np.may_share_memory(a, b, max_work=MAY_SHARE_BOUNDS)) + + a.fill(0) + b.fill(0) + a.fill(1) + exact = b.any() + + err_msg = "" + if got != exact: + base_delta = a.__array_interface__['data'][0] - b.__array_interface__['data'][0] + err_msg = " " + "\n ".join([ + f"base_a - base_b = {base_delta!r}", + f"shape_a = {a.shape!r}", + f"shape_b = {b.shape!r}", + f"strides_a = {a.strides!r}", + f"strides_b = {b.strides!r}", + f"size_a = {a.size!r}", + f"size_b = {b.size!r}" + ]) + + assert_equal(got, exact, err_msg=err_msg) + + +def test_may_share_memory_manual(): + # Manual test cases for may_share_memory + + # Base arrays + xs0 = [ + np.zeros([13, 21, 23, 22], dtype=np.int8), + np.zeros([13, 21, 23 * 2, 22], dtype=np.int8)[:, :, ::2, :] + ] + + # Generate all negative stride combinations + xs = [] + for x in xs0: + for ss in itertools.product(*(([slice(None), slice(None, None, -1)],) * 4)): + xp = x[ss] + xs.append(xp) + + for x in xs: + # The default is a simple extent check + assert_(np.may_share_memory(x[:, 0, :], x[:, 1, :])) + assert_(np.may_share_memory(x[:, 0, :], x[:, 1, :], max_work=None)) + + # Exact checks + check_may_share_memory_exact(x[:, 0, :], x[:, 1, :]) + check_may_share_memory_exact(x[:, ::7], x[:, 3::3]) + + try: + xp = x.ravel() + if xp.flags.owndata: + continue + xp = xp.view(np.int16) + except ValueError: + continue + + # 0-size arrays cannot overlap + check_may_share_memory_exact(x.ravel()[6:6], + xp.reshape(13, 21, 23, 11)[:, ::7]) + + # Test itemsize is dealt with + check_may_share_memory_exact(x[:, ::7], + xp.reshape(13, 21, 23, 11)) + check_may_share_memory_exact(x[:, ::7], + xp.reshape(13, 21, 23, 11)[:, 3::3]) + check_may_share_memory_exact(x.ravel()[6:7], + xp.reshape(13, 21, 23, 11)[:, ::7]) + + # Check unit size + x = np.zeros([1], dtype=np.int8) + check_may_share_memory_exact(x, x) + check_may_share_memory_exact(x, x.copy()) + + +def iter_random_view_pairs(x, same_steps=True, equal_size=False): + rng = np.random.RandomState(1234) + + if equal_size and same_steps: + raise ValueError + + def random_slice(n, step): + start = rng.randint(0, n + 1, dtype=np.intp) + stop = rng.randint(start, n + 1, dtype=np.intp) + if rng.randint(0, 2, dtype=np.intp) == 0: + stop, start = start, stop + step *= -1 + return slice(start, stop, step) + + def random_slice_fixed_size(n, step, size): + start = rng.randint(0, n + 1 - size * step) + stop = start + (size - 1) * step + 1 + if rng.randint(0, 2) == 0: + stop, start = start - 1, stop - 1 + if stop < 0: + stop = None + step *= -1 + return slice(start, stop, step) + + # First a few regular views + yield x, x + for j in range(1, 7, 3): + yield x[j:], x[:-j] + yield x[..., j:], x[..., :-j] + + # An array with zero stride internal overlap + strides = list(x.strides) + strides[0] = 0 + xp = as_strided(x, shape=x.shape, strides=strides) + yield x, xp + yield xp, xp + + # An array with non-zero stride internal overlap + strides = list(x.strides) + if strides[0] > 1: + strides[0] = 1 + xp = as_strided(x, shape=x.shape, strides=strides) + yield x, xp + yield xp, xp + + # Then discontiguous views + while True: + steps = tuple(rng.randint(1, 11, dtype=np.intp) + if rng.randint(0, 5, dtype=np.intp) == 0 else 1 + for j in range(x.ndim)) + s1 = tuple(random_slice(p, s) for p, s in zip(x.shape, steps)) + + t1 = np.arange(x.ndim) + rng.shuffle(t1) + + if equal_size: + t2 = t1 + else: + t2 = np.arange(x.ndim) + rng.shuffle(t2) + + a = x[s1] + + if equal_size: + if a.size == 0: + continue + + steps2 = tuple(rng.randint(1, max(2, p // (1 + pa))) + if rng.randint(0, 5) == 0 else 1 + for p, s, pa in zip(x.shape, s1, a.shape)) + s2 = tuple(random_slice_fixed_size(p, s, pa) + for p, s, pa in zip(x.shape, steps2, a.shape)) + elif same_steps: + steps2 = steps + else: + steps2 = tuple(rng.randint(1, 11, dtype=np.intp) + if rng.randint(0, 5, dtype=np.intp) == 0 else 1 + for j in range(x.ndim)) + + if not equal_size: + s2 = tuple(random_slice(p, s) for p, s in zip(x.shape, steps2)) + + a = a.transpose(t1) + b = x[s2].transpose(t2) + + yield a, b + + +def check_may_share_memory_easy_fuzz(get_max_work, same_steps, min_count): + # Check that overlap problems with common strides are solved with + # little work. + x = np.zeros([17, 34, 71, 97], dtype=np.int16) + + feasible = 0 + infeasible = 0 + + pair_iter = iter_random_view_pairs(x, same_steps) + + while min(feasible, infeasible) < min_count: + a, b = next(pair_iter) + + bounds_overlap = np.may_share_memory(a, b) + may_share_answer = np.may_share_memory(a, b) + easy_answer = np.may_share_memory(a, b, max_work=get_max_work(a, b)) + exact_answer = np.may_share_memory(a, b, max_work=MAY_SHARE_EXACT) + + if easy_answer != exact_answer: + # assert_equal is slow... + assert_equal(easy_answer, exact_answer) + + if may_share_answer != bounds_overlap: + assert_equal(may_share_answer, bounds_overlap) + + if bounds_overlap: + if exact_answer: + feasible += 1 + else: + infeasible += 1 + + +@pytest.mark.slow +def test_may_share_memory_easy_fuzz(): + # Check that overlap problems with common strides are always + # solved with little work. + + check_may_share_memory_easy_fuzz(get_max_work=lambda a, b: 1, + same_steps=True, + min_count=2000) + + +@pytest.mark.slow +def test_may_share_memory_harder_fuzz(): + # Overlap problems with not necessarily common strides take more + # work. + # + # The work bound below can't be reduced much. Harder problems can + # also exist but not be detected here, as the set of problems + # comes from RNG. + + check_may_share_memory_easy_fuzz(get_max_work=lambda a, b: max(a.size, b.size) // 2, + same_steps=False, + min_count=2000) + + +def test_shares_memory_api(): + x = np.zeros([4, 5, 6], dtype=np.int8) + + assert_equal(np.shares_memory(x, x), True) + assert_equal(np.shares_memory(x, x.copy()), False) + + a = x[:, ::2, ::3] + b = x[:, ::3, ::2] + assert_equal(np.shares_memory(a, b), True) + assert_equal(np.shares_memory(a, b, max_work=None), True) + assert_raises( + np.exceptions.TooHardError, np.shares_memory, a, b, max_work=1 + ) + + +def test_may_share_memory_bad_max_work(): + x = np.zeros([1]) + assert_raises(OverflowError, np.may_share_memory, x, x, max_work=10**100) + assert_raises(OverflowError, np.shares_memory, x, x, max_work=10**100) + + +def test_internal_overlap_diophantine(): + def check(A, U, exists=None): + X = solve_diophantine(A, U, 0, require_ub_nontrivial=1) + + if exists is None: + exists = (X is not None) + + if X is not None: + sum_ax = sum(a * x for a, x in zip(A, X)) + sum_au_half = sum(a * u // 2 for a, u in zip(A, U)) + assert_(sum_ax == sum_au_half) + assert_(all(0 <= x <= u for x, u in zip(X, U))) + assert_(any(x != u // 2 for x, u in zip(X, U))) + + if exists: + assert_(X is not None, repr(X)) + else: + assert_(X is None, repr(X)) + + # Smoke tests + check((3, 2), (2 * 2, 3 * 2), exists=True) + check((3 * 2, 2), (15 * 2, (3 - 1) * 2), exists=False) + + +def test_internal_overlap_slices(): + # Slicing an array never generates internal overlap + + x = np.zeros([17, 34, 71, 97], dtype=np.int16) + + rng = np.random.RandomState(1234) + + def random_slice(n, step): + start = rng.randint(0, n + 1, dtype=np.intp) + stop = rng.randint(start, n + 1, dtype=np.intp) + if rng.randint(0, 2, dtype=np.intp) == 0: + stop, start = start, stop + step *= -1 + return slice(start, stop, step) + + cases = 0 + min_count = 5000 + + while cases < min_count: + steps = tuple(rng.randint(1, 11, dtype=np.intp) + if rng.randint(0, 5, dtype=np.intp) == 0 else 1 + for j in range(x.ndim)) + t1 = np.arange(x.ndim) + rng.shuffle(t1) + s1 = tuple(random_slice(p, s) for p, s in zip(x.shape, steps)) + a = x[s1].transpose(t1) + + assert_(not internal_overlap(a)) + cases += 1 + + +def check_internal_overlap(a, manual_expected=None): + got = internal_overlap(a) + + # Brute-force check + m = set() + ranges = tuple(range(n) for n in a.shape) + for v in itertools.product(*ranges): + offset = sum(s * w for s, w in zip(a.strides, v)) + if offset in m: + expected = True + break + else: + m.add(offset) + else: + expected = False + + # Compare + if got != expected: + assert_equal(got, expected, err_msg=repr((a.strides, a.shape))) + if manual_expected is not None and expected != manual_expected: + assert_equal(expected, manual_expected) + return got + + +def test_internal_overlap_manual(): + # Stride tricks can construct arrays with internal overlap + + # We don't care about memory bounds, the array is not + # read/write accessed + x = np.arange(1).astype(np.int8) + + # Check low-dimensional special cases + + check_internal_overlap(x, False) # 1-dim + check_internal_overlap(x.reshape([]), False) # 0-dim + + a = as_strided(x, strides=(3, 4), shape=(4, 4)) + check_internal_overlap(a, False) + + a = as_strided(x, strides=(3, 4), shape=(5, 4)) + check_internal_overlap(a, True) + + a = as_strided(x, strides=(0,), shape=(0,)) + check_internal_overlap(a, False) + + a = as_strided(x, strides=(0,), shape=(1,)) + check_internal_overlap(a, False) + + a = as_strided(x, strides=(0,), shape=(2,)) + check_internal_overlap(a, True) + + a = as_strided(x, strides=(0, -9993), shape=(87, 22)) + check_internal_overlap(a, True) + + a = as_strided(x, strides=(0, -9993), shape=(1, 22)) + check_internal_overlap(a, False) + + a = as_strided(x, strides=(0, -9993), shape=(0, 22)) + check_internal_overlap(a, False) + + +def test_internal_overlap_fuzz(): + # Fuzz check; the brute-force check is fairly slow + + x = np.arange(1).astype(np.int8) + + overlap = 0 + no_overlap = 0 + min_count = 100 + + rng = np.random.RandomState(1234) + + while min(overlap, no_overlap) < min_count: + ndim = rng.randint(1, 4, dtype=np.intp) + + strides = tuple(rng.randint(-1000, 1000, dtype=np.intp) + for j in range(ndim)) + shape = tuple(rng.randint(1, 30, dtype=np.intp) + for j in range(ndim)) + + a = as_strided(x, strides=strides, shape=shape) + result = check_internal_overlap(a) + + if result: + overlap += 1 + else: + no_overlap += 1 + + +def test_non_ndarray_inputs(): + # Regression check for gh-5604 + + class MyArray: + def __init__(self, data): + self.data = data + + @property + def __array_interface__(self): + return self.data.__array_interface__ + + class MyArray2: + def __init__(self, data): + self.data = data + + def __array__(self, dtype=None, copy=None): + return self.data + + for cls in [MyArray, MyArray2]: + x = np.arange(5) + + assert_(np.may_share_memory(cls(x[::2]), x[1::2])) + assert_(not np.shares_memory(cls(x[::2]), x[1::2])) + + assert_(np.shares_memory(cls(x[1::3]), x[::2])) + assert_(np.may_share_memory(cls(x[1::3]), x[::2])) + + +def view_element_first_byte(x): + """Construct an array viewing the first byte of each element of `x`""" + from numpy.lib._stride_tricks_impl import DummyArray + interface = dict(x.__array_interface__) + interface['typestr'] = '|b1' + interface['descr'] = [('', '|b1')] + return np.asarray(DummyArray(interface, x)) + + +def assert_copy_equivalent(operation, args, out, **kwargs): + """ + Check that operation(*args, out=out) produces results + equivalent to out[...] = operation(*args, out=out.copy()) + """ + + kwargs['out'] = out + kwargs2 = dict(kwargs) + kwargs2['out'] = out.copy() + + out_orig = out.copy() + out[...] = operation(*args, **kwargs2) + expected = out.copy() + out[...] = out_orig + + got = operation(*args, **kwargs).copy() + + if (got != expected).any(): + assert_equal(got, expected) + + +class TestUFunc: + """ + Test ufunc call memory overlap handling + """ + + def check_unary_fuzz(self, operation, get_out_axis_size, dtype=np.int16, + count=5000): + shapes = [7, 13, 8, 21, 29, 32] + + rng = np.random.RandomState(1234) + + for ndim in range(1, 6): + x = rng.randint(0, 2**16, size=shapes[:ndim]).astype(dtype) + + it = iter_random_view_pairs(x, same_steps=False, equal_size=True) + + min_count = count // (ndim + 1)**2 + + overlapping = 0 + while overlapping < min_count: + a, b = next(it) + + a_orig = a.copy() + b_orig = b.copy() + + if get_out_axis_size is None: + assert_copy_equivalent(operation, [a], out=b) + + if np.shares_memory(a, b): + overlapping += 1 + else: + for axis in itertools.chain(range(ndim), [None]): + a[...] = a_orig + b[...] = b_orig + + # Determine size for reduction axis (None if scalar) + outsize, scalarize = get_out_axis_size(a, b, axis) + if outsize == 'skip': + continue + + # Slice b to get an output array of the correct size + sl = [slice(None)] * ndim + if axis is None: + if outsize is None: + sl = [slice(0, 1)] + [0] * (ndim - 1) + else: + sl = [slice(0, outsize)] + [0] * (ndim - 1) + elif outsize is None: + k = b.shape[axis] // 2 + if ndim == 1: + sl[axis] = slice(k, k + 1) + else: + sl[axis] = k + else: + assert b.shape[axis] >= outsize + sl[axis] = slice(0, outsize) + b_out = b[tuple(sl)] + + if scalarize: + b_out = b_out.reshape([]) + + if np.shares_memory(a, b_out): + overlapping += 1 + + # Check result + assert_copy_equivalent(operation, [a], out=b_out, axis=axis) + + @pytest.mark.slow + def test_unary_ufunc_call_fuzz(self): + self.check_unary_fuzz(np.invert, None, np.int16) + + @pytest.mark.slow + def test_unary_ufunc_call_complex_fuzz(self): + # Complex typically has a smaller alignment than itemsize + self.check_unary_fuzz(np.negative, None, np.complex128, count=500) + + def test_binary_ufunc_accumulate_fuzz(self): + def get_out_axis_size(a, b, axis): + if axis is None: + if a.ndim == 1: + return a.size, False + else: + return 'skip', False # accumulate doesn't support this + else: + return a.shape[axis], False + + self.check_unary_fuzz(np.add.accumulate, get_out_axis_size, + dtype=np.int16, count=500) + + def test_binary_ufunc_reduce_fuzz(self): + def get_out_axis_size(a, b, axis): + return None, (axis is None or a.ndim == 1) + + self.check_unary_fuzz(np.add.reduce, get_out_axis_size, + dtype=np.int16, count=500) + + def test_binary_ufunc_reduceat_fuzz(self): + def get_out_axis_size(a, b, axis): + if axis is None: + if a.ndim == 1: + return a.size, False + else: + return 'skip', False # reduceat doesn't support this + else: + return a.shape[axis], False + + def do_reduceat(a, out, axis): + if axis is None: + size = len(a) + step = size // len(out) + else: + size = a.shape[axis] + step = a.shape[axis] // out.shape[axis] + idx = np.arange(0, size, step) + return np.add.reduceat(a, idx, out=out, axis=axis) + + self.check_unary_fuzz(do_reduceat, get_out_axis_size, + dtype=np.int16, count=500) + + def test_binary_ufunc_reduceat_manual(self): + def check(ufunc, a, ind, out): + c1 = ufunc.reduceat(a.copy(), ind.copy(), out=out.copy()) + c2 = ufunc.reduceat(a, ind, out=out) + assert_array_equal(c1, c2) + + # Exactly same input/output arrays + a = np.arange(10000, dtype=np.int16) + check(np.add, a, a[::-1].copy(), a) + + # Overlap with index + a = np.arange(10000, dtype=np.int16) + check(np.add, a, a[::-1], a) + + @pytest.mark.slow + def test_unary_gufunc_fuzz(self): + shapes = [7, 13, 8, 21, 29, 32] + gufunc = _umath_tests.euclidean_pdist + + rng = np.random.RandomState(1234) + + for ndim in range(2, 6): + x = rng.rand(*shapes[:ndim]) + + it = iter_random_view_pairs(x, same_steps=False, equal_size=True) + + min_count = 500 // (ndim + 1)**2 + + overlapping = 0 + while overlapping < min_count: + a, b = next(it) + + if min(a.shape[-2:]) < 2 or min(b.shape[-2:]) < 2 or a.shape[-1] < 2: + continue + + # Ensure the shapes are so that euclidean_pdist is happy + if b.shape[-1] > b.shape[-2]: + b = b[..., 0, :] + else: + b = b[..., :, 0] + + n = a.shape[-2] + p = n * (n - 1) // 2 + if p <= b.shape[-1] and p > 0: + b = b[..., :p] + else: + n = max(2, int(np.sqrt(b.shape[-1])) // 2) + p = n * (n - 1) // 2 + a = a[..., :n, :] + b = b[..., :p] + + # Call + if np.shares_memory(a, b): + overlapping += 1 + + with np.errstate(over='ignore', invalid='ignore'): + assert_copy_equivalent(gufunc, [a], out=b) + + def test_ufunc_at_manual(self): + def check(ufunc, a, ind, b=None): + a0 = a.copy() + if b is None: + ufunc.at(a0, ind.copy()) + c1 = a0.copy() + ufunc.at(a, ind) + c2 = a.copy() + else: + ufunc.at(a0, ind.copy(), b.copy()) + c1 = a0.copy() + ufunc.at(a, ind, b) + c2 = a.copy() + assert_array_equal(c1, c2) + + # Overlap with index + a = np.arange(10000, dtype=np.int16) + check(np.invert, a[::-1], a) + + # Overlap with second data array + a = np.arange(100, dtype=np.int16) + ind = np.arange(0, 100, 2, dtype=np.int16) + check(np.add, a, ind, a[25:75]) + + def test_unary_ufunc_1d_manual(self): + # Exercise ufunc fast-paths (that avoid creation of an `np.nditer`) + + def check(a, b): + a_orig = a.copy() + b_orig = b.copy() + + b0 = b.copy() + c1 = ufunc(a, out=b0) + c2 = ufunc(a, out=b) + assert_array_equal(c1, c2) + + # Trigger "fancy ufunc loop" code path + mask = view_element_first_byte(b).view(np.bool) + + a[...] = a_orig + b[...] = b_orig + c1 = ufunc(a, out=b.copy(), where=mask.copy()).copy() + + a[...] = a_orig + b[...] = b_orig + c2 = ufunc(a, out=b, where=mask.copy()).copy() + + # Also, mask overlapping with output + a[...] = a_orig + b[...] = b_orig + c3 = ufunc(a, out=b, where=mask).copy() + + assert_array_equal(c1, c2) + assert_array_equal(c1, c3) + + dtypes = [np.int8, np.int16, np.int32, np.int64, np.float32, + np.float64, np.complex64, np.complex128] + dtypes = [np.dtype(x) for x in dtypes] + + for dtype in dtypes: + if np.issubdtype(dtype, np.integer): + ufunc = np.invert + else: + ufunc = np.reciprocal + + n = 1000 + k = 10 + indices = [ + np.index_exp[:n], + np.index_exp[k:k + n], + np.index_exp[n - 1::-1], + np.index_exp[k + n - 1:k - 1:-1], + np.index_exp[:2 * n:2], + np.index_exp[k:k + 2 * n:2], + np.index_exp[2 * n - 1::-2], + np.index_exp[k + 2 * n - 1:k - 1:-2], + ] + + for xi, yi in itertools.product(indices, indices): + v = np.arange(1, 1 + n * 2 + k, dtype=dtype) + x = v[xi] + y = v[yi] + + with np.errstate(all='ignore'): + check(x, y) + + # Scalar cases + check(x[:1], y) + check(x[-1:], y) + check(x[:1].reshape([]), y) + check(x[-1:].reshape([]), y) + + def test_unary_ufunc_where_same(self): + # Check behavior at wheremask overlap + ufunc = np.invert + + def check(a, out, mask): + c1 = ufunc(a, out=out.copy(), where=mask.copy()) + c2 = ufunc(a, out=out, where=mask) + assert_array_equal(c1, c2) + + # Check behavior with same input and output arrays + x = np.arange(100).astype(np.bool) + check(x, x, x) + check(x, x.copy(), x) + check(x, x, x.copy()) + + @pytest.mark.slow + def test_binary_ufunc_1d_manual(self): + ufunc = np.add + + def check(a, b, c): + c0 = c.copy() + c1 = ufunc(a, b, out=c0) + c2 = ufunc(a, b, out=c) + assert_array_equal(c1, c2) + + for dtype in [np.int8, np.int16, np.int32, np.int64, + np.float32, np.float64, np.complex64, np.complex128]: + # Check different data dependency orders + + n = 1000 + k = 10 + + indices = [] + for p in [1, 2]: + indices.extend([ + np.index_exp[:p * n:p], + np.index_exp[k:k + p * n:p], + np.index_exp[p * n - 1::-p], + np.index_exp[k + p * n - 1:k - 1:-p], + ]) + + for x, y, z in itertools.product(indices, indices, indices): + v = np.arange(6 * n).astype(dtype) + x = v[x] + y = v[y] + z = v[z] + + check(x, y, z) + + # Scalar cases + check(x[:1], y, z) + check(x[-1:], y, z) + check(x[:1].reshape([]), y, z) + check(x[-1:].reshape([]), y, z) + check(x, y[:1], z) + check(x, y[-1:], z) + check(x, y[:1].reshape([]), z) + check(x, y[-1:].reshape([]), z) + + def test_inplace_op_simple_manual(self): + rng = np.random.RandomState(1234) + x = rng.rand(200, 200) # bigger than bufsize + + x += x.T + assert_array_equal(x - x.T, 0) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_mem_policy.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_mem_policy.py new file mode 100644 index 0000000000000000000000000000000000000000..313d3efe779ab046c3f0c4c9668f9d2cbab5c507 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_mem_policy.py @@ -0,0 +1,453 @@ +import asyncio +import gc +import os +import sys +import sysconfig +import threading + +import pytest + +import numpy as np +from numpy._core.multiarray import get_handler_name +from numpy.testing import IS_EDITABLE, IS_WASM, extbuild + + +@pytest.fixture +def get_module(tmp_path): + """ Add a memory policy that returns a false pointer 64 bytes into the + actual allocation, and fill the prefix with some text. Then check at each + memory manipulation that the prefix exists, to make sure all alloc/realloc/ + free/calloc go via the functions here. + """ + if sys.platform.startswith('cygwin'): + pytest.skip('link fails on cygwin') + if IS_WASM: + pytest.skip("Can't build module inside Wasm") + if IS_EDITABLE: + pytest.skip("Can't build module for editable install") + + functions = [ + ("get_default_policy", "METH_NOARGS", """ + Py_INCREF(PyDataMem_DefaultHandler); + return PyDataMem_DefaultHandler; + """), + ("set_secret_data_policy", "METH_NOARGS", """ + PyObject *secret_data = + PyCapsule_New(&secret_data_handler, "mem_handler", NULL); + if (secret_data == NULL) { + return NULL; + } + PyObject *old = PyDataMem_SetHandler(secret_data); + Py_DECREF(secret_data); + return old; + """), + ("set_wrong_capsule_name_data_policy", "METH_NOARGS", """ + PyObject *wrong_name_capsule = + PyCapsule_New(&secret_data_handler, "not_mem_handler", NULL); + if (wrong_name_capsule == NULL) { + return NULL; + } + PyObject *old = PyDataMem_SetHandler(wrong_name_capsule); + Py_DECREF(wrong_name_capsule); + return old; + """), + ("set_old_policy", "METH_O", """ + PyObject *old; + if (args != NULL && PyCapsule_CheckExact(args)) { + old = PyDataMem_SetHandler(args); + } + else { + old = PyDataMem_SetHandler(NULL); + } + return old; + """), + ("get_array", "METH_NOARGS", """ + char *buf = (char *)malloc(20); + npy_intp dims[1]; + dims[0] = 20; + PyArray_Descr *descr = PyArray_DescrNewFromType(NPY_UINT8); + return PyArray_NewFromDescr(&PyArray_Type, descr, 1, dims, NULL, + buf, NPY_ARRAY_WRITEABLE, NULL); + """), + ("set_own", "METH_O", """ + if (!PyArray_Check(args)) { + PyErr_SetString(PyExc_ValueError, + "need an ndarray"); + return NULL; + } + PyArray_ENABLEFLAGS((PyArrayObject*)args, NPY_ARRAY_OWNDATA); + // Maybe try this too? + // PyArray_BASE(PyArrayObject *)args) = NULL; + Py_RETURN_NONE; + """), + ("get_array_with_base", "METH_NOARGS", """ + char *buf = (char *)malloc(20); + npy_intp dims[1]; + dims[0] = 20; + PyArray_Descr *descr = PyArray_DescrNewFromType(NPY_UINT8); + PyObject *arr = PyArray_NewFromDescr(&PyArray_Type, descr, 1, dims, + NULL, buf, + NPY_ARRAY_WRITEABLE, NULL); + if (arr == NULL) return NULL; + PyObject *obj = PyCapsule_New(buf, "buf capsule", + (PyCapsule_Destructor)&warn_on_free); + if (obj == NULL) { + Py_DECREF(arr); + return NULL; + } + if (PyArray_SetBaseObject((PyArrayObject *)arr, obj) < 0) { + Py_DECREF(arr); + Py_DECREF(obj); + return NULL; + } + return arr; + + """), + ] + prologue = ''' + #define NPY_TARGET_VERSION NPY_1_22_API_VERSION + #define NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION + #include + /* + * This struct allows the dynamic configuration of the allocator funcs + * of the `secret_data_allocator`. It is provided here for + * demonstration purposes, as a valid `ctx` use-case scenario. + */ + typedef struct { + void *(*malloc)(size_t); + void *(*calloc)(size_t, size_t); + void *(*realloc)(void *, size_t); + void (*free)(void *); + } SecretDataAllocatorFuncs; + + NPY_NO_EXPORT void * + shift_alloc(void *ctx, size_t sz) { + SecretDataAllocatorFuncs *funcs = (SecretDataAllocatorFuncs *)ctx; + char *real = (char *)funcs->malloc(sz + 64); + if (real == NULL) { + return NULL; + } + snprintf(real, 64, "originally allocated %ld", (unsigned long)sz); + return (void *)(real + 64); + } + NPY_NO_EXPORT void * + shift_zero(void *ctx, size_t sz, size_t cnt) { + SecretDataAllocatorFuncs *funcs = (SecretDataAllocatorFuncs *)ctx; + char *real = (char *)funcs->calloc(sz + 64, cnt); + if (real == NULL) { + return NULL; + } + snprintf(real, 64, "originally allocated %ld via zero", + (unsigned long)sz); + return (void *)(real + 64); + } + NPY_NO_EXPORT void + shift_free(void *ctx, void * p, npy_uintp sz) { + SecretDataAllocatorFuncs *funcs = (SecretDataAllocatorFuncs *)ctx; + if (p == NULL) { + return ; + } + char *real = (char *)p - 64; + if (strncmp(real, "originally allocated", 20) != 0) { + fprintf(stdout, "uh-oh, unmatched shift_free, " + "no appropriate prefix\\n"); + /* Make C runtime crash by calling free on the wrong address */ + funcs->free((char *)p + 10); + /* funcs->free(real); */ + } + else { + npy_uintp i = (npy_uintp)atoi(real +20); + if (i != sz) { + fprintf(stderr, "uh-oh, unmatched shift_free" + "(ptr, %ld) but allocated %ld\\n", sz, i); + /* This happens in some places, only print */ + funcs->free(real); + } + else { + funcs->free(real); + } + } + } + NPY_NO_EXPORT void * + shift_realloc(void *ctx, void * p, npy_uintp sz) { + SecretDataAllocatorFuncs *funcs = (SecretDataAllocatorFuncs *)ctx; + if (p != NULL) { + char *real = (char *)p - 64; + if (strncmp(real, "originally allocated", 20) != 0) { + fprintf(stdout, "uh-oh, unmatched shift_realloc\\n"); + return realloc(p, sz); + } + return (void *)((char *)funcs->realloc(real, sz + 64) + 64); + } + else { + char *real = (char *)funcs->realloc(p, sz + 64); + if (real == NULL) { + return NULL; + } + snprintf(real, 64, "originally allocated " + "%ld via realloc", (unsigned long)sz); + return (void *)(real + 64); + } + } + /* As an example, we use the standard {m|c|re}alloc/free funcs. */ + static SecretDataAllocatorFuncs secret_data_handler_ctx = { + malloc, + calloc, + realloc, + free + }; + static PyDataMem_Handler secret_data_handler = { + "secret_data_allocator", + 1, + { + &secret_data_handler_ctx, /* ctx */ + shift_alloc, /* malloc */ + shift_zero, /* calloc */ + shift_realloc, /* realloc */ + shift_free /* free */ + } + }; + void warn_on_free(void *capsule) { + PyErr_WarnEx(PyExc_UserWarning, "in warn_on_free", 1); + void * obj = PyCapsule_GetPointer(capsule, + PyCapsule_GetName(capsule)); + free(obj); + }; + ''' + more_init = "import_array();" + try: + import mem_policy + return mem_policy + except ImportError: + pass + # if it does not exist, build and load it + if sysconfig.get_platform() == "win-arm64": + pytest.skip("Meson unable to find MSVC linker on win-arm64") + return extbuild.build_and_import_extension('mem_policy', + functions, + prologue=prologue, + include_dirs=[np.get_include()], + build_dir=tmp_path, + more_init=more_init) + + +def test_set_policy(get_module): + + get_handler_name = np._core.multiarray.get_handler_name + get_handler_version = np._core.multiarray.get_handler_version + orig_policy_name = get_handler_name() + + a = np.arange(10).reshape((2, 5)) # a doesn't own its own data + assert get_handler_name(a) is None + assert get_handler_version(a) is None + assert get_handler_name(a.base) == orig_policy_name + assert get_handler_version(a.base) == 1 + + orig_policy = get_module.set_secret_data_policy() + + b = np.arange(10).reshape((2, 5)) # b doesn't own its own data + assert get_handler_name(b) is None + assert get_handler_version(b) is None + assert get_handler_name(b.base) == 'secret_data_allocator' + assert get_handler_version(b.base) == 1 + + if orig_policy_name == 'default_allocator': + get_module.set_old_policy(None) # tests PyDataMem_SetHandler(NULL) + assert get_handler_name() == 'default_allocator' + else: + get_module.set_old_policy(orig_policy) + assert get_handler_name() == orig_policy_name + + with pytest.raises(ValueError, + match="Capsule must be named 'mem_handler'"): + get_module.set_wrong_capsule_name_data_policy() + + +def test_default_policy_singleton(get_module): + get_handler_name = np._core.multiarray.get_handler_name + + # set the policy to default + orig_policy = get_module.set_old_policy(None) + + assert get_handler_name() == 'default_allocator' + + # re-set the policy to default + def_policy_1 = get_module.set_old_policy(None) + + assert get_handler_name() == 'default_allocator' + + # set the policy to original + def_policy_2 = get_module.set_old_policy(orig_policy) + + # since default policy is a singleton, + # these should be the same object + assert def_policy_1 is def_policy_2 is get_module.get_default_policy() + + +def test_policy_propagation(get_module): + # The memory policy goes hand-in-hand with flags.owndata + + class MyArr(np.ndarray): + pass + + get_handler_name = np._core.multiarray.get_handler_name + orig_policy_name = get_handler_name() + a = np.arange(10).view(MyArr).reshape((2, 5)) + assert get_handler_name(a) is None + assert a.flags.owndata is False + + assert get_handler_name(a.base) is None + assert a.base.flags.owndata is False + + assert get_handler_name(a.base.base) == orig_policy_name + assert a.base.base.flags.owndata is True + + +async def concurrent_context1(get_module, orig_policy_name, event): + if orig_policy_name == 'default_allocator': + get_module.set_secret_data_policy() + assert get_handler_name() == 'secret_data_allocator' + else: + get_module.set_old_policy(None) + assert get_handler_name() == 'default_allocator' + event.set() + + +async def concurrent_context2(get_module, orig_policy_name, event): + await event.wait() + # the policy is not affected by changes in parallel contexts + assert get_handler_name() == orig_policy_name + # change policy in the child context + if orig_policy_name == 'default_allocator': + get_module.set_secret_data_policy() + assert get_handler_name() == 'secret_data_allocator' + else: + get_module.set_old_policy(None) + assert get_handler_name() == 'default_allocator' + + +async def async_test_context_locality(get_module): + orig_policy_name = np._core.multiarray.get_handler_name() + + event = asyncio.Event() + # the child contexts inherit the parent policy + concurrent_task1 = asyncio.create_task( + concurrent_context1(get_module, orig_policy_name, event)) + concurrent_task2 = asyncio.create_task( + concurrent_context2(get_module, orig_policy_name, event)) + await concurrent_task1 + await concurrent_task2 + + # the parent context is not affected by child policy changes + assert np._core.multiarray.get_handler_name() == orig_policy_name + + +def test_context_locality(get_module): + if (sys.implementation.name == 'pypy' + and sys.pypy_version_info[:3] < (7, 3, 6)): + pytest.skip('no context-locality support in PyPy < 7.3.6') + asyncio.run(async_test_context_locality(get_module)) + + +def concurrent_thread1(get_module, event): + get_module.set_secret_data_policy() + assert np._core.multiarray.get_handler_name() == 'secret_data_allocator' + event.set() + + +def concurrent_thread2(get_module, event): + event.wait() + # the policy is not affected by changes in parallel threads + assert np._core.multiarray.get_handler_name() == 'default_allocator' + # change policy in the child thread + get_module.set_secret_data_policy() + + +def test_thread_locality(get_module): + orig_policy_name = np._core.multiarray.get_handler_name() + + event = threading.Event() + # the child threads do not inherit the parent policy + concurrent_task1 = threading.Thread(target=concurrent_thread1, + args=(get_module, event)) + concurrent_task2 = threading.Thread(target=concurrent_thread2, + args=(get_module, event)) + concurrent_task1.start() + concurrent_task2.start() + concurrent_task1.join() + concurrent_task2.join() + + # the parent thread is not affected by child policy changes + assert np._core.multiarray.get_handler_name() == orig_policy_name + + +@pytest.mark.skip(reason="too slow, see gh-23975") +def test_new_policy(get_module): + a = np.arange(10) + orig_policy_name = np._core.multiarray.get_handler_name(a) + + orig_policy = get_module.set_secret_data_policy() + + b = np.arange(10) + assert np._core.multiarray.get_handler_name(b) == 'secret_data_allocator' + + # test array manipulation. This is slow + if orig_policy_name == 'default_allocator': + # when the np._core.test tests recurse into this test, the + # policy will be set so this "if" will be false, preventing + # infinite recursion + # + # if needed, debug this by + # - running tests with -- -s (to not capture stdout/stderr + # - setting verbose=2 + # - setting extra_argv=['-vv'] here + assert np._core.test('full', verbose=1, extra_argv=[]) + # also try the ma tests, the pickling test is quite tricky + assert np.ma.test('full', verbose=1, extra_argv=[]) + + get_module.set_old_policy(orig_policy) + + c = np.arange(10) + assert np._core.multiarray.get_handler_name(c) == orig_policy_name + + +@pytest.mark.xfail(sys.implementation.name == "pypy", + reason=("bad interaction between getenv and " + "os.environ inside pytest")) +@pytest.mark.parametrize("policy", ["0", "1", None]) +@pytest.mark.thread_unsafe(reason="modifies environment variables") +def test_switch_owner(get_module, policy): + a = get_module.get_array() + assert np._core.multiarray.get_handler_name(a) is None + get_module.set_own(a) + + if policy is None: + # See what we expect to be set based on the env variable + policy = os.getenv("NUMPY_WARN_IF_NO_MEM_POLICY", "0") == "1" + oldval = None + else: + policy = policy == "1" + oldval = np._core._multiarray_umath._set_numpy_warn_if_no_mem_policy( + policy) + try: + # The policy should be NULL, so we have to assume we can call + # "free". A warning is given if the policy == "1" + if policy: + with pytest.warns(RuntimeWarning) as w: + del a + gc.collect() + else: + del a + gc.collect() + + finally: + if oldval is not None: + np._core._multiarray_umath._set_numpy_warn_if_no_mem_policy(oldval) + + +def test_owner_is_base(get_module): + a = get_module.get_array_with_base() + with pytest.warns(UserWarning, match='warn_on_free'): + del a + gc.collect() + gc.collect() diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_memmap.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_memmap.py new file mode 100644 index 0000000000000000000000000000000000000000..8e2aa0a507b1cf9cf95b8aed3b30a3c81003803f --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_memmap.py @@ -0,0 +1,248 @@ +import mmap +import os +import sys +import warnings +from pathlib import Path +from tempfile import NamedTemporaryFile, TemporaryFile + +import pytest + +from numpy import ( + add, + allclose, + arange, + asarray, + average, + isscalar, + memmap, + multiply, + ndarray, + prod, + subtract, + sum, +) +from numpy.testing import ( + IS_PYPY, + assert_, + assert_array_equal, + assert_equal, + break_cycles, +) + + +@pytest.mark.thread_unsafe(reason="setup & memmap is thread-unsafe (gh-29126)") +class TestMemmap: + def setup_method(self): + self.tmpfp = NamedTemporaryFile(prefix='mmap') + self.shape = (3, 4) + self.dtype = 'float32' + self.data = arange(12, dtype=self.dtype) + self.data.resize(self.shape) + + def teardown_method(self): + self.tmpfp.close() + self.data = None + if IS_PYPY: + break_cycles() + break_cycles() + + def test_roundtrip(self): + # Write data to file + fp = memmap(self.tmpfp, dtype=self.dtype, mode='w+', + shape=self.shape) + fp[:] = self.data[:] + del fp # Test __del__ machinery, which handles cleanup + + # Read data back from file + newfp = memmap(self.tmpfp, dtype=self.dtype, mode='r', + shape=self.shape) + assert_(allclose(self.data, newfp)) + assert_array_equal(self.data, newfp) + assert_equal(newfp.flags.writeable, False) + + def test_open_with_filename(self, tmp_path): + tmpname = tmp_path / 'mmap' + fp = memmap(tmpname, dtype=self.dtype, mode='w+', + shape=self.shape) + fp[:] = self.data[:] + del fp + + def test_unnamed_file(self): + with TemporaryFile() as f: + fp = memmap(f, dtype=self.dtype, shape=self.shape) + del fp + + def test_attributes(self): + offset = 1 + mode = "w+" + fp = memmap(self.tmpfp, dtype=self.dtype, mode=mode, + shape=self.shape, offset=offset) + assert_equal(offset, fp.offset) + assert_equal(mode, fp.mode) + del fp + + def test_filename(self, tmp_path): + tmpname = tmp_path / "mmap" + fp = memmap(tmpname, dtype=self.dtype, mode='w+', + shape=self.shape) + abspath = Path(os.path.abspath(tmpname)) + fp[:] = self.data[:] + assert_equal(abspath, fp.filename) + b = fp[:1] + assert_equal(abspath, b.filename) + del b + del fp + + def test_path(self, tmp_path): + tmpname = tmp_path / "mmap" + fp = memmap(Path(tmpname), dtype=self.dtype, mode='w+', + shape=self.shape) + # os.path.realpath does not resolve symlinks on Windows + # see: https://bugs.python.org/issue9949 + # use Path.resolve, just as memmap class does internally + abspath = str(Path(tmpname).resolve()) + fp[:] = self.data[:] + assert_equal(abspath, str(fp.filename.resolve())) + b = fp[:1] + assert_equal(abspath, str(b.filename.resolve())) + del b + del fp + + def test_filename_fileobj(self): + fp = memmap(self.tmpfp, dtype=self.dtype, mode="w+", + shape=self.shape) + assert_equal(fp.filename, self.tmpfp.name) + + @pytest.mark.skipif(sys.platform == 'gnu0', + reason="Known to fail on hurd") + def test_flush(self): + fp = memmap(self.tmpfp, dtype=self.dtype, mode='w+', + shape=self.shape) + fp[:] = self.data[:] + assert_equal(fp[0], self.data[0]) + fp.flush() + + def test_del(self): + # Make sure a view does not delete the underlying mmap + fp_base = memmap(self.tmpfp, dtype=self.dtype, mode='w+', + shape=self.shape) + fp_base[0] = 5 + fp_view = fp_base[0:1] + assert_equal(fp_view[0], 5) + del fp_view + # Should still be able to access and assign values after + # deleting the view + assert_equal(fp_base[0], 5) + fp_base[0] = 6 + assert_equal(fp_base[0], 6) + + def test_arithmetic_drops_references(self): + fp = memmap(self.tmpfp, dtype=self.dtype, mode='w+', + shape=self.shape) + tmp = (fp + 10) + if isinstance(tmp, memmap): + assert_(tmp._mmap is not fp._mmap) + + def test_indexing_drops_references(self): + fp = memmap(self.tmpfp, dtype=self.dtype, mode='w+', + shape=self.shape) + tmp = fp[(1, 2), (2, 3)] + if isinstance(tmp, memmap): + assert_(tmp._mmap is not fp._mmap) + + def test_slicing_keeps_references(self): + fp = memmap(self.tmpfp, dtype=self.dtype, mode='w+', + shape=self.shape) + assert_(fp[:2, :2]._mmap is fp._mmap) + + def test_view(self): + fp = memmap(self.tmpfp, dtype=self.dtype, shape=self.shape) + new1 = fp.view() + new2 = new1.view() + assert_(new1.base is fp) + assert_(new2.base is fp) + new_array = asarray(fp) + assert_(new_array.base is fp) + + def test_ufunc_return_ndarray(self): + fp = memmap(self.tmpfp, dtype=self.dtype, shape=self.shape) + fp[:] = self.data + + with warnings.catch_warnings(): + warnings.filterwarnings( + 'ignore', "np.average currently does not preserve", FutureWarning) + for unary_op in [sum, average, prod]: + result = unary_op(fp) + assert_(isscalar(result)) + assert_(result.__class__ is self.data[0, 0].__class__) + + assert_(unary_op(fp, axis=0).__class__ is ndarray) + assert_(unary_op(fp, axis=1).__class__ is ndarray) + + for binary_op in [add, subtract, multiply]: + assert_(binary_op(fp, self.data).__class__ is ndarray) + assert_(binary_op(self.data, fp).__class__ is ndarray) + assert_(binary_op(fp, fp).__class__ is ndarray) + + fp += 1 + assert fp.__class__ is memmap + add(fp, 1, out=fp) + assert fp.__class__ is memmap + + def test_getitem(self): + fp = memmap(self.tmpfp, dtype=self.dtype, shape=self.shape) + fp[:] = self.data + + assert_(fp[1:, :-1].__class__ is memmap) + # Fancy indexing returns a copy that is not memmapped + assert_(fp[[0, 1]].__class__ is ndarray) + + def test_memmap_subclass(self): + class MemmapSubClass(memmap): + pass + + fp = MemmapSubClass(self.tmpfp, dtype=self.dtype, shape=self.shape) + fp[:] = self.data + + # We keep previous behavior for subclasses of memmap, i.e. the + # ufunc and __getitem__ output is never turned into a ndarray + assert_(sum(fp, axis=0).__class__ is MemmapSubClass) + assert_(sum(fp).__class__ is MemmapSubClass) + assert_(fp[1:, :-1].__class__ is MemmapSubClass) + assert fp[[0, 1]].__class__ is MemmapSubClass + + def test_mmap_offset_greater_than_allocation_granularity(self): + size = 5 * mmap.ALLOCATIONGRANULARITY + offset = mmap.ALLOCATIONGRANULARITY + 1 + fp = memmap(self.tmpfp, shape=size, mode='w+', offset=offset) + assert_(fp.offset == offset) + + def test_empty_array_with_offset_multiple_of_allocation_granularity(self): + self.tmpfp.write(b'a' * mmap.ALLOCATIONGRANULARITY) + size = 0 + offset = mmap.ALLOCATIONGRANULARITY + fp = memmap(self.tmpfp, shape=size, mode='w+', offset=offset) + assert_equal(fp.offset, offset) + + def test_no_shape(self): + self.tmpfp.write(b'a' * 16) + mm = memmap(self.tmpfp, dtype='float64') + assert_equal(mm.shape, (2,)) + + def test_empty_array(self): + # gh-12653 + with pytest.raises(ValueError, match='empty file'): + memmap(self.tmpfp, shape=(0, 4), mode='r') + + # gh-27723 + # empty memmap works with mode in ('w+','r+') + memmap(self.tmpfp, shape=(0, 4), mode='w+') + + # ok now the file is not empty + memmap(self.tmpfp, shape=(0, 4), mode='w+') + + def test_shape_type(self): + memmap(self.tmpfp, shape=3, mode='w+') + memmap(self.tmpfp, shape=self.shape, mode='w+') + memmap(self.tmpfp, shape=list(self.shape), mode='w+') + memmap(self.tmpfp, shape=asarray(self.shape), mode='w+') diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_multiarray.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_multiarray.py new file mode 100644 index 0000000000000000000000000000000000000000..fe3bd7770080c094cc38f005f8efa758d1b2b65e --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_multiarray.py @@ -0,0 +1,11031 @@ +import builtins +import collections.abc +import ctypes +import functools +import gc +import importlib +import inspect +import io +import itertools +import mmap +import operator +import os +import pathlib +import pickle +import re +import subprocess +import sys +import tempfile +import textwrap +import warnings +import weakref +from contextlib import contextmanager + +# Need to test an object that does not fully implement math interface +from datetime import datetime, timedelta +from decimal import Decimal + +import pytest + +import numpy as np +import numpy._core._multiarray_tests as _multiarray_tests +from numpy._core._rational_tests import rational +from numpy._core.multiarray import _get_ndarray_c_version, dot +from numpy._core.tests._locales import CommaDecimalPointLocale +from numpy.exceptions import AxisError, ComplexWarning +from numpy.lib import stride_tricks +from numpy.lib.recfunctions import repack_fields +from numpy.testing import ( + BLAS_SUPPORTS_FPE, + HAS_REFCOUNT, + IS_64BIT, + IS_PYPY, + IS_PYSTON, + IS_WASM, + assert_, + assert_allclose, + assert_almost_equal, + assert_array_almost_equal, + assert_array_compare, + assert_array_equal, + assert_array_less, + assert_equal, + assert_raises, + assert_raises_regex, + break_cycles, + check_support_sve, + runstring, + temppath, +) +from numpy.testing._private.utils import _no_tracing, requires_memory + + +def assert_arg_sorted(arr, arg): + # resulting array should be sorted and arg values should be unique + assert_equal(arr[arg], np.sort(arr)) + assert_equal(np.sort(arg), np.arange(len(arg))) + + +def assert_arr_partitioned(kth, k, arr_part): + assert_equal(arr_part[k], kth) + assert_array_compare(operator.__le__, arr_part[:k], kth) + assert_array_compare(operator.__ge__, arr_part[k:], kth) + + +def _aligned_zeros(shape, dtype=float, order="C", align=None): + """ + Allocate a new ndarray with aligned memory. + + The ndarray is guaranteed *not* aligned to twice the requested alignment. + Eg, if align=4, guarantees it is not aligned to 8. If align=None uses + dtype.alignment.""" + dtype = np.dtype(dtype) + if dtype == np.dtype(object): + # Can't do this, fall back to standard allocation (which + # should always be sufficiently aligned) + if align is not None: + raise ValueError("object array alignment not supported") + return np.zeros(shape, dtype=dtype, order=order) + if align is None: + align = dtype.alignment + if not hasattr(shape, '__len__'): + shape = (shape,) + size = functools.reduce(operator.mul, shape) * dtype.itemsize + buf = np.empty(size + 2 * align + 1, np.uint8) + + ptr = buf.__array_interface__['data'][0] + offset = ptr % align + if offset != 0: + offset = align - offset + if (ptr % (2 * align)) == 0: + offset += align + + # Note: slices producing 0-size arrays do not necessarily change + # data pointer --- so we use and allocate size+1 + buf = buf[offset:offset + size + 1][:-1] + buf.fill(0) + data = np.ndarray(shape, dtype, buf, order=order) + return data + + +class TestFlags: + def test_writeable(self): + arr = np.arange(10) + mydict = locals() + arr.flags.writeable = False + assert_raises(ValueError, runstring, 'arr[0] = 3', mydict) + arr.flags.writeable = True + arr[0] = 5 + arr[0] = 0 + + def test_writeable_any_base(self): + # Ensure that any base being writeable is sufficient to change flag; + # this is especially interesting for arrays from an array interface. + arr = np.arange(10) + + class subclass(np.ndarray): + pass + + # Create subclass so base will not be collapsed, this is OK to change + view1 = arr.view(subclass) + view2 = view1[...] + arr.flags.writeable = False + view2.flags.writeable = False + view2.flags.writeable = True # Can be set to True again. + + arr = np.arange(10) + + class frominterface: + def __init__(self, arr): + self.arr = arr + self.__array_interface__ = arr.__array_interface__ + + view1 = np.asarray(frominterface) + view2 = view1[...] + view2.flags.writeable = False + view2.flags.writeable = True + + view1.flags.writeable = False + view2.flags.writeable = False + with assert_raises(ValueError): + # Must assume not writeable, since only base is not: + view2.flags.writeable = True + + def test_writeable_from_readonly(self): + # gh-9440 - make sure fromstring, from buffer on readonly buffers + # set writeable False + data = b'\x00' * 100 + vals = np.frombuffer(data, 'B') + assert_raises(ValueError, vals.setflags, write=True) + types = np.dtype([('vals', 'u1'), ('res3', 'S4')]) + values = np._core.records.fromstring(data, types) + vals = values['vals'] + assert_raises(ValueError, vals.setflags, write=True) + + def test_writeable_from_buffer(self): + data = bytearray(b'\x00' * 100) + vals = np.frombuffer(data, 'B') + assert_(vals.flags.writeable) + vals.setflags(write=False) + assert_(vals.flags.writeable is False) + vals.setflags(write=True) + assert_(vals.flags.writeable) + types = np.dtype([('vals', 'u1'), ('res3', 'S4')]) + values = np._core.records.fromstring(data, types) + vals = values['vals'] + assert_(vals.flags.writeable) + vals.setflags(write=False) + assert_(vals.flags.writeable is False) + vals.setflags(write=True) + assert_(vals.flags.writeable) + + @pytest.mark.skipif(IS_PYPY, reason="PyPy always copies") + def test_writeable_pickle(self): + import pickle + # Small arrays will be copied without setting base. + # See condition for using PyArray_SetBaseObject in + # array_setstate. + a = np.arange(1000) + for v in range(pickle.HIGHEST_PROTOCOL): + vals = pickle.loads(pickle.dumps(a, v)) + assert_(vals.flags.writeable) + assert_(isinstance(vals.base, bytes)) + + def test_writeable_from_c_data(self): + # Test that the writeable flag can be changed for an array wrapping + # low level C-data, but not owning its data. + # Also see that this is deprecated to change from python. + from numpy._core._multiarray_tests import get_c_wrapping_array + + arr_writeable = get_c_wrapping_array(True) + assert not arr_writeable.flags.owndata + assert arr_writeable.flags.writeable + view = arr_writeable[...] + + # Toggling the writeable flag works on the view: + view.flags.writeable = False + assert not view.flags.writeable + view.flags.writeable = True + assert view.flags.writeable + # Flag can be unset on the arr_writeable: + arr_writeable.flags.writeable = False + + arr_readonly = get_c_wrapping_array(False) + assert not arr_readonly.flags.owndata + assert not arr_readonly.flags.writeable + + for arr in [arr_writeable, arr_readonly]: + view = arr[...] + view.flags.writeable = False # make sure it is readonly + arr.flags.writeable = False + assert not arr.flags.writeable + + with assert_raises(ValueError): + view.flags.writeable = True + + with assert_raises(ValueError): + arr.flags.writeable = True + + def test_warnonwrite(self): + a = np.arange(10) + a.flags._warn_on_write = True + with warnings.catch_warnings(record=True) as w: + warnings.filterwarnings('always') + a[1] = 10 + a[2] = 10 + # only warn once + assert_(len(w) == 1) + + @pytest.mark.parametrize(["flag", "flag_value", "writeable"], + [("writeable", True, True), + # Delete _warn_on_write after deprecation and simplify + # the parameterization: + ("_warn_on_write", True, False), + ("writeable", False, False)]) + def test_readonly_flag_protocols(self, flag, flag_value, writeable): + a = np.arange(10) + setattr(a.flags, flag, flag_value) + + class MyArr: + __array_struct__ = a.__array_struct__ + + assert memoryview(a).readonly is not writeable + assert a.__array_interface__['data'][1] is not writeable + assert np.asarray(MyArr()).flags.writeable is writeable + + def test_otherflags(self): + arr = np.arange(10) + assert_equal(arr.flags.carray, True) + assert_equal(arr.flags['C'], True) + assert_equal(arr.flags.farray, False) + assert_equal(arr.flags.behaved, True) + assert_equal(arr.flags.fnc, False) + assert_equal(arr.flags.forc, True) + assert_equal(arr.flags.owndata, True) + assert_equal(arr.flags.writeable, True) + assert_equal(arr.flags.aligned, True) + assert_equal(arr.flags.writebackifcopy, False) + assert_equal(arr.flags['X'], False) + assert_equal(arr.flags['WRITEBACKIFCOPY'], False) + + def test_string_align(self): + a = np.zeros(4, dtype=np.dtype('|S4')) + assert_(a.flags.aligned) + # not power of two are accessed byte-wise and thus considered aligned + a = np.zeros(5, dtype=np.dtype('|S4')) + assert_(a.flags.aligned) + + def test_void_align(self): + a = np.zeros(4, dtype=np.dtype([("a", "i4"), ("b", "i4")])) + assert_(a.flags.aligned) + + @pytest.mark.parametrize("row_size", [5, 1 << 16]) + @pytest.mark.parametrize("row_count", [1, 5]) + @pytest.mark.parametrize("ndmin", [0, 1, 2]) + def test_xcontiguous_load_txt(self, row_size, row_count, ndmin): + s = io.StringIO('\n'.join(['1.0 ' * row_size] * row_count)) + a = np.loadtxt(s, ndmin=ndmin) + + assert a.flags.c_contiguous + x = [i for i in a.shape if i != 1] + assert a.flags.f_contiguous == (len(x) <= 1) + + +class TestHash: + # see #3793 + def test_int(self): + for st, ut, s in [(np.int8, np.uint8, 8), + (np.int16, np.uint16, 16), + (np.int32, np.uint32, 32), + (np.int64, np.uint64, 64)]: + for i in range(1, s): + assert_equal(hash(st(-2**i)), hash(-2**i), + err_msg="%r: -2**%d" % (st, i)) + assert_equal(hash(st(2**(i - 1))), hash(2**(i - 1)), + err_msg="%r: 2**%d" % (st, i - 1)) + assert_equal(hash(st(2**i - 1)), hash(2**i - 1), + err_msg="%r: 2**%d - 1" % (st, i)) + + i = max(i - 1, 1) + assert_equal(hash(ut(2**(i - 1))), hash(2**(i - 1)), + err_msg="%r: 2**%d" % (ut, i - 1)) + assert_equal(hash(ut(2**i - 1)), hash(2**i - 1), + err_msg="%r: 2**%d - 1" % (ut, i)) + + +class TestAttributes: + def _create_arrays(self): + one = np.arange(10) + two = np.arange(20).reshape(4, 5) + three = np.arange(60, dtype=np.float64).reshape(2, 5, 6) + return one, two, three + + def test_attributes(self): + one, two, three = self._create_arrays() + assert_equal(one.shape, (10,)) + assert_equal(two.shape, (4, 5)) + assert_equal(three.shape, (2, 5, 6)) + three.shape = (10, 3, 2) + assert_equal(three.shape, (10, 3, 2)) + three.shape = (2, 5, 6) + assert_equal(one.strides, (one.itemsize,)) + num = two.itemsize + assert_equal(two.strides, (5 * num, num)) + num = three.itemsize + assert_equal(three.strides, (30 * num, 6 * num, num)) + assert_equal(one.ndim, 1) + assert_equal(two.ndim, 2) + assert_equal(three.ndim, 3) + num = two.itemsize + assert_equal(two.size, 20) + assert_equal(two.nbytes, 20 * num) + assert_equal(two.itemsize, two.dtype.itemsize) + assert_equal(two.base, np.arange(20)) + + def test_dtypeattr(self): + one, _, three = self._create_arrays() + assert_equal(one.dtype, np.dtype(np.int_)) + assert_equal(three.dtype, np.dtype(np.float64)) + assert_equal(one.dtype.char, np.dtype(int).char) + assert one.dtype.char in "lq" + assert_equal(three.dtype.char, 'd') + assert_(three.dtype.str[0] in '<>') + assert_equal(one.dtype.str[1], 'i') + assert_equal(three.dtype.str[1], 'f') + + def test_int_subclassing(self): + # Regression test for https://github.com/numpy/numpy/pull/3526 + + numpy_int = np.int_(0) + + # int_ doesn't inherit from Python int, because it's not fixed-width + assert_(not isinstance(numpy_int, int)) + + def test_stridesattr(self): + x, _, _ = self._create_arrays() + + def make_array(size, offset, strides): + return np.ndarray(size, buffer=x, dtype=int, + offset=offset * x.itemsize, + strides=strides * x.itemsize) + + assert_equal(make_array(4, 4, -1), np.array([4, 3, 2, 1])) + assert_raises(ValueError, make_array, 4, 4, -2) + assert_raises(ValueError, make_array, 4, 2, -1) + assert_raises(ValueError, make_array, 8, 3, 1) + assert_equal(make_array(8, 3, 0), np.array([3] * 8)) + # Check behavior reported in gh-2503: + assert_raises(ValueError, make_array, (2, 3), 5, np.array([-2, -3])) + make_array(0, 0, 10) + + def test_set_stridesattr(self): + x, _, _ = self._create_arrays() + + def make_array(size, offset, strides): + try: + r = np.ndarray([size], dtype=int, buffer=x, + offset=offset * x.itemsize) + except Exception as e: + raise RuntimeError(e) + with pytest.warns(DeprecationWarning): + r.strides = strides * x.itemsize + return r + + assert_equal(make_array(4, 4, -1), np.array([4, 3, 2, 1])) + assert_equal(make_array(7, 3, 1), np.array([3, 4, 5, 6, 7, 8, 9])) + assert_raises(ValueError, make_array, 4, 4, -2) + assert_raises(ValueError, make_array, 4, 2, -1) + assert_raises(RuntimeError, make_array, 8, 3, 1) + # Check that the true extent of the array is used. + # Test relies on as_strided base not exposing a buffer. + x = stride_tricks.as_strided(np.arange(1), (10, 10), (0, 0)) + + def set_strides(arr, strides): + with pytest.warns(DeprecationWarning): + arr.strides = strides + + assert_raises(ValueError, set_strides, x, (10 * x.itemsize, x.itemsize)) + + # Test for offset calculations: + x = stride_tricks.as_strided(np.arange(10, dtype=np.int8)[-1], + shape=(10,), strides=(-1,)) + assert_raises(ValueError, set_strides, x[::-1], -1) + a = x[::-1] + with pytest.warns(DeprecationWarning): + a.strides = 1 + with pytest.warns(DeprecationWarning): + a[::2].strides = 2 + + # test 0d + arr_0d = np.array(0) + with pytest.warns(DeprecationWarning): + arr_0d.strides = () + assert_raises(TypeError, set_strides, arr_0d, None) + + def test_fill(self): + for t in "?bhilqpBHILQPfdgFDGO": + x = np.empty((3, 2, 1), t) + y = np.empty((3, 2, 1), t) + x.fill(1) + y[...] = 1 + assert_equal(x, y) + + def test_fill_max_uint64(self): + x = np.empty((3, 2, 1), dtype=np.uint64) + y = np.empty((3, 2, 1), dtype=np.uint64) + value = 2**64 - 1 + y[...] = value + x.fill(value) + assert_array_equal(x, y) + + def test_fill_struct_array(self): + # Filling from a scalar + x = np.array([(0, 0.0), (1, 1.0)], dtype='i4,f8') + x.fill(x[0]) + assert_equal(x['f1'][1], x['f1'][0]) + # Filling from a tuple that can be converted + # to a scalar + x = np.zeros(2, dtype=[('a', 'f8'), ('b', 'i4')]) + x.fill((3.5, -2)) + assert_array_equal(x['a'], [3.5, 3.5]) + assert_array_equal(x['b'], [-2, -2]) + + def test_fill_readonly(self): + # gh-22922 + a = np.zeros(11) + a.setflags(write=False) + with pytest.raises(ValueError, match=".*read-only"): + a.fill(0) + + def test_fill_subarrays(self): + # NOTE: + # This is also a regression test for a crash with PYTHONMALLOC=debug + + dtype = np.dtype("2= 3 + + arg0 = "object" if func is np.array else "a" + assert arg0 in sig.parameters + assert sig.parameters[arg0].default is inspect.Parameter.empty + assert sig.parameters[arg0].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD + + assert "dtype" in sig.parameters + assert sig.parameters["dtype"].default is None + assert sig.parameters["dtype"].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD + + assert "like" in sig.parameters + assert sig.parameters["like"].default is None + assert sig.parameters["like"].kind is inspect.Parameter.KEYWORD_ONLY + + +class TestAssignment: + def test_assignment_broadcasting(self): + a = np.arange(6).reshape(2, 3) + + # Broadcasting the input to the output + a[...] = np.arange(3) + assert_equal(a, [[0, 1, 2], [0, 1, 2]]) + a[...] = np.arange(2).reshape(2, 1) + assert_equal(a, [[0, 0, 0], [1, 1, 1]]) + + # For compatibility with <= 1.5, a limited version of broadcasting + # the output to the input. + # + # This behavior is inconsistent with NumPy broadcasting + # in general, because it only uses one of the two broadcasting + # rules (adding a new "1" dimension to the left of the shape), + # applied to the output instead of an input. In NumPy 2.0, this kind + # of broadcasting assignment will likely be disallowed. + a[...] = np.arange(6)[::-1].reshape(1, 2, 3) + assert_equal(a, [[5, 4, 3], [2, 1, 0]]) + # The other type of broadcasting would require a reduction operation. + + def assign(a, b): + a[...] = b + + assert_raises(ValueError, assign, a, np.arange(12).reshape(2, 2, 3)) + + def test_assignment_errors(self): + # Address issue #2276 + class C: + pass + a = np.zeros(1) + + def assign(v): + a[0] = v + + assert_raises((AttributeError, TypeError), assign, C()) + assert_raises(ValueError, assign, [1]) + + @pytest.mark.filterwarnings( + "ignore:.*set_string_function.*:DeprecationWarning" + ) + def test_unicode_assignment(self): + # gh-5049 + from numpy._core.arrayprint import set_printoptions + + @contextmanager + def inject_str(s): + """ replace ndarray.__str__ temporarily """ + set_printoptions(formatter={"all": lambda x: s}) + try: + yield + finally: + set_printoptions() + + a1d = np.array(['test']) + a0d = np.array('done') + with inject_str('bad'): + a1d[0] = a0d # previously this would invoke __str__ + assert_equal(a1d[0], 'done') + + # this would crash for the same reason + np.array([np.array('\xe5\xe4\xf6')]) + + def test_stringlike_empty_list(self): + # gh-8902 + u = np.array(['done']) + b = np.array([b'done']) + + class bad_sequence: + def __getitem__(self, _, /): pass + def __len__(self): raise RuntimeError + + assert_raises(ValueError, operator.setitem, u, 0, []) + assert_raises(ValueError, operator.setitem, b, 0, []) + + assert_raises(ValueError, operator.setitem, u, 0, bad_sequence()) + assert_raises(ValueError, operator.setitem, b, 0, bad_sequence()) + + def test_longdouble_assignment(self): + # only relevant if longdouble is larger than float + # we're looking for loss of precision + + for dtype in (np.longdouble, np.clongdouble): + # gh-8902 + tinyb = np.nextafter(np.longdouble(0), 1).astype(dtype) + tinya = np.nextafter(np.longdouble(0), -1).astype(dtype) + + # construction + tiny1d = np.array([tinya]) + assert_equal(tiny1d[0], tinya) + + # scalar = scalar + tiny1d[0] = tinyb + assert_equal(tiny1d[0], tinyb) + + # 0d = scalar + tiny1d[0, ...] = tinya + assert_equal(tiny1d[0], tinya) + + # 0d = 0d + tiny1d[0, ...] = tinyb[...] + assert_equal(tiny1d[0], tinyb) + + # scalar = 0d + tiny1d[0] = tinyb[...] + assert_equal(tiny1d[0], tinyb) + + arr = np.array([np.array(tinya)]) + assert_equal(arr[0], tinya) + + def test_cast_to_string(self): + # cast to str should do "str(scalar)", not "str(scalar.item())" + # When converting a float to a string via array assignment, we + # want to ensure that the conversion uses str(scalar) to preserve + # the expected precision. + a = np.zeros(1, dtype='S20') + a[:] = np.array(['1.12345678901234567890'], dtype='f8') + assert_equal(a[0], b"1.1234567890123457") + + +class TestDtypedescr: + def test_construction(self): + d1 = np.dtype('i4') + assert_equal(d1, np.dtype(np.int32)) + d2 = np.dtype('f8') + assert_equal(d2, np.dtype(np.float64)) + + def test_byteorders(self): + assert_(np.dtype('i4')) + assert_(np.dtype([('a', 'i4')])) + + def test_structured_non_void(self): + fields = [('a', ' ndmax validation + data = np.array([[1, 2, 3], [4, 5, 6]]) + with pytest.raises(ValueError, match="object too deep for desired array"): + np.array(data, ndmax=1, dtype=object) + + +class TestStructured: + def test_subarray_field_access(self): + a = np.zeros((3, 5), dtype=[('a', ('i4', (2, 2)))]) + a['a'] = np.arange(60).reshape(3, 5, 2, 2) + + # Since the subarray is always in C-order, a transpose + # does not swap the subarray: + assert_array_equal(a.T['a'], a['a'].transpose(1, 0, 2, 3)) + + # In Fortran order, the subarray gets appended + # like in all other cases, not prepended as a special case + b = a.copy(order='F') + assert_equal(a['a'].shape, b['a'].shape) + assert_equal(a.T['a'].shape, a.T.copy()['a'].shape) + + def test_subarray_comparison(self): + # Check that comparisons between record arrays with + # multi-dimensional field types work properly + a = np.rec.fromrecords( + [([1, 2, 3], 'a', [[1, 2], [3, 4]]), ([3, 3, 3], 'b', [[0, 0], [0, 0]])], + dtype=[('a', ('f4', 3)), ('b', object), ('c', ('i4', (2, 2)))]) + b = a.copy() + assert_equal(a == b, [True, True]) + assert_equal(a != b, [False, False]) + b[1].b = 'c' + assert_equal(a == b, [True, False]) + assert_equal(a != b, [False, True]) + for i in range(3): + b[0].a = a[0].a + b[0].a[i] = 5 + assert_equal(a == b, [False, False]) + assert_equal(a != b, [True, True]) + for i in range(2): + for j in range(2): + b = a.copy() + b[0].c[i, j] = 10 + assert_equal(a == b, [False, True]) + assert_equal(a != b, [True, False]) + + # Check that broadcasting with a subarray works, including cases that + # require promotion to work: + a = np.array([[(0,)], [(1,)]], dtype=[('a', 'f8')]) + b = np.array([(0,), (0,), (1,)], dtype=[('a', 'f8')]) + assert_equal(a == b, [[True, True, False], [False, False, True]]) + assert_equal(b == a, [[True, True, False], [False, False, True]]) + a = np.array([[(0,)], [(1,)]], dtype=[('a', 'f8', (1,))]) + b = np.array([(0,), (0,), (1,)], dtype=[('a', 'f8', (1,))]) + assert_equal(a == b, [[True, True, False], [False, False, True]]) + assert_equal(b == a, [[True, True, False], [False, False, True]]) + a = np.array([[([0, 0],)], [([1, 1],)]], dtype=[('a', 'f8', (2,))]) + b = np.array([([0, 0],), ([0, 1],), ([1, 1],)], dtype=[('a', 'f8', (2,))]) + assert_equal(a == b, [[True, False, False], [False, False, True]]) + assert_equal(b == a, [[True, False, False], [False, False, True]]) + + # Check that broadcasting Fortran-style arrays with a subarray work + a = np.array([[([0, 0],)], [([1, 1],)]], dtype=[('a', 'f8', (2,))], order='F') + b = np.array([([0, 0],), ([0, 1],), ([1, 1],)], dtype=[('a', 'f8', (2,))]) + assert_equal(a == b, [[True, False, False], [False, False, True]]) + assert_equal(b == a, [[True, False, False], [False, False, True]]) + + # Check that incompatible sub-array shapes don't result to broadcasting + x = np.zeros((1,), dtype=[('a', ('f4', (1, 2))), ('b', 'i1')]) + y = np.zeros((1,), dtype=[('a', ('f4', (2,))), ('b', 'i1')]) + # The main importance is that it does not return True: + with pytest.raises(TypeError): + x == y + + x = np.zeros((1,), dtype=[('a', ('f4', (2, 1))), ('b', 'i1')]) + y = np.zeros((1,), dtype=[('a', ('f4', (2,))), ('b', 'i1')]) + # The main importance is that it does not return True: + with pytest.raises(TypeError): + x == y + + def test_empty_structured_array_comparison(self): + # Check that comparison works on empty arrays with nontrivially + # shaped fields + a = np.zeros(0, [('a', 'i8'), ('b', 'f8')]) + assert_equal(a == b, [False, True]) + assert_equal(a != b, [True, False]) + + a = np.array([(5, 42), (10, 1)], dtype=[('a', '>f8'), ('b', 'i8')]) + assert_equal(a == b, [False, True]) + assert_equal(a != b, [True, False]) + + # Including with embedded subarray dtype (although subarray comparison + # itself may still be a bit weird and compare the raw data) + a = np.array([(5, 42), (10, 1)], dtype=[('a', '10>f8'), ('b', '5i8')]) + assert_equal(a == b, [False, True]) + assert_equal(a != b, [True, False]) + + @pytest.mark.parametrize("op", [ + operator.eq, lambda x, y: operator.eq(y, x), + operator.ne, lambda x, y: operator.ne(y, x)]) + def test_void_comparison_failures(self, op): + # In principle, one could decide to return an array of False for some + # if comparisons are impossible. But right now we return TypeError + # when "void" dtype are involved. + x = np.zeros(3, dtype=[('a', 'i1')]) + y = np.zeros(3) + # Cannot compare non-structured to structured: + with pytest.raises(TypeError): + op(x, y) + + # Added title prevents promotion, but casts are OK: + y = np.zeros(3, dtype=[(('title', 'a'), 'i1')]) + assert np.can_cast(y.dtype, x.dtype) + with pytest.raises(TypeError): + op(x, y) + + x = np.zeros(3, dtype="V7") + y = np.zeros(3, dtype="V8") + with pytest.raises(TypeError): + op(x, y) + + def test_casting(self): + # Check that casting a structured array to change its byte order + # works + a = np.array([(1,)], dtype=[('a', 'i4')], casting='unsafe')) + b = a.astype([('a', '>i4')]) + a_tmp = a.byteswap() + a_tmp = a_tmp.view(a_tmp.dtype.newbyteorder()) + assert_equal(b, a_tmp) + assert_equal(a['a'][0], b['a'][0]) + + # Check that equality comparison works on structured arrays if + # they are 'equiv'-castable + a = np.array([(5, 42), (10, 1)], dtype=[('a', '>i4'), ('b', 'f8')]) + assert_(np.can_cast(a.dtype, b.dtype, casting='equiv')) + assert_equal(a == b, [True, True]) + + # Check that 'equiv' casting can change byte order + assert_(np.can_cast(a.dtype, b.dtype, casting='equiv')) + c = a.astype(b.dtype, casting='equiv') + assert_equal(a == c, [True, True]) + + # Check that 'safe' casting can change byte order and up-cast + # fields + t = [('a', 'f8')] + assert_(np.can_cast(a.dtype, t, casting='safe')) + c = a.astype(t, casting='safe') + assert_equal((c == np.array([(5, 42), (10, 1)], dtype=t)), + [True, True]) + + # Check that 'same_kind' casting can change byte order and + # change field widths within a "kind" + t = [('a', 'f4')] + assert_(np.can_cast(a.dtype, t, casting='same_kind')) + c = a.astype(t, casting='same_kind') + assert_equal((c == np.array([(5, 42), (10, 1)], dtype=t)), + [True, True]) + + # Check that casting fails if the casting rule should fail on + # any of the fields + t = [('a', '>i8'), ('b', 'i2'), ('b', 'i8'), ('b', 'i4')] + assert_(not np.can_cast(a.dtype, t, casting=casting)) + t = [('a', '>i4'), ('b', 'i8") + ab = np.array([(1, 2)], dtype=[A, B]) + ba = np.array([(1, 2)], dtype=[B, A]) + assert_raises(TypeError, np.concatenate, ab, ba) + assert_raises(TypeError, np.result_type, ab.dtype, ba.dtype) + assert_raises(TypeError, np.promote_types, ab.dtype, ba.dtype) + + # dtypes with same field names/order but different memory offsets + # and byte-order are promotable to packed nbo. + assert_equal(np.promote_types(ab.dtype, ba[['a', 'b']].dtype), + repack_fields(ab.dtype.newbyteorder('N'))) + + # gh-13667 + # dtypes with different fieldnames but castable field types are castable + assert_equal(np.can_cast(ab.dtype, ba.dtype), True) + assert_equal(ab.astype(ba.dtype).dtype, ba.dtype) + assert_equal(np.can_cast('f8,i8', [('f0', 'f8'), ('f1', 'i8')]), True) + assert_equal(np.can_cast('f8,i8', [('f1', 'f8'), ('f0', 'i8')]), True) + assert_equal(np.can_cast('f8,i8', [('f1', 'i8'), ('f0', 'f8')]), False) + assert_equal(np.can_cast('f8,i8', [('f1', 'i8'), ('f0', 'f8')], + casting='unsafe'), True) + + ab[:] = ba # make sure assignment still works + + # tests of type-promotion of corresponding fields + dt1 = np.dtype([("", "i4")]) + dt2 = np.dtype([("", "i8")]) + assert_equal(np.promote_types(dt1, dt2), np.dtype([('f0', 'i8')])) + assert_equal(np.promote_types(dt2, dt1), np.dtype([('f0', 'i8')])) + assert_raises(TypeError, np.promote_types, dt1, np.dtype([("", "V3")])) + assert_equal(np.promote_types('i4,f8', 'i8,f4'), + np.dtype([('f0', 'i8'), ('f1', 'f8')])) + # test nested case + dt1nest = np.dtype([("", dt1)]) + dt2nest = np.dtype([("", dt2)]) + assert_equal(np.promote_types(dt1nest, dt2nest), + np.dtype([('f0', np.dtype([('f0', 'i8')]))])) + + # note that offsets are lost when promoting: + dt = np.dtype({'names': ['x'], 'formats': ['i4'], 'offsets': [8]}) + a = np.ones(3, dtype=dt) + assert_equal(np.concatenate([a, a]).dtype, np.dtype([('x', 'i4')])) + + @pytest.mark.parametrize("dtype_dict", [ + {"names": ["a", "b"], "formats": ["i4", "f"], "itemsize": 100}, + {"names": ["a", "b"], "formats": ["i4", "f"], + "offsets": [0, 12]}]) + @pytest.mark.parametrize("align", [True, False]) + def test_structured_promotion_packs(self, dtype_dict, align): + # Structured dtypes are packed when promoted (we consider the packed + # form to be "canonical"), so tere is no extra padding. + dtype = np.dtype(dtype_dict, align=align) + # Remove non "canonical" dtype options: + dtype_dict.pop("itemsize", None) + dtype_dict.pop("offsets", None) + expected = np.dtype(dtype_dict, align=align) + + res = np.promote_types(dtype, dtype) + assert res.itemsize == expected.itemsize + assert res.fields == expected.fields + + # But the "expected" one, should just be returned unchanged: + res = np.promote_types(expected, expected) + assert res is expected + + def test_structured_asarray_is_view(self): + # A scalar viewing an array preserves its view even when creating a + # new array. This test documents behaviour, it may not be the best + # desired behaviour. + arr = np.array([1], dtype="i,i") + scalar = arr[0] + assert not scalar.flags.owndata # view into the array + assert np.asarray(scalar).base is scalar + # But never when a dtype is passed in: + assert np.asarray(scalar, dtype=scalar.dtype).base is None + # A scalar which owns its data does not have this property. + # It is not easy to create one, one method is to use pickle: + scalar = pickle.loads(pickle.dumps(scalar)) + assert scalar.flags.owndata + assert np.asarray(scalar).base is None + +class TestBool: + def test_test_interning(self): + a0 = np.bool(0) + b0 = np.bool(False) + assert_(a0 is b0) + a1 = np.bool(1) + b1 = np.bool(True) + assert_(a1 is b1) + assert_(np.array([True])[0] is a1) + assert_(np.array(True)[()] is a1) + + def test_sum(self): + d = np.ones(101, dtype=bool) + assert_equal(d.sum(), d.size) + assert_equal(d[::2].sum(), d[::2].size) + assert_equal(d[::-2].sum(), d[::-2].size) + + d = np.frombuffer(b'\xff\xff' * 100, dtype=bool) + assert_equal(d.sum(), d.size) + assert_equal(d[::2].sum(), d[::2].size) + assert_equal(d[::-2].sum(), d[::-2].size) + + def check_count_nonzero(self, power, length): + powers = [2 ** i for i in range(length)] + for i in range(2**power): + l = [(i & x) != 0 for x in powers] + a = np.array(l, dtype=bool) + c = builtins.sum(l) + assert_equal(np.count_nonzero(a), c) + av = a.view(np.uint8) + av *= 3 + assert_equal(np.count_nonzero(a), c) + av *= 4 + assert_equal(np.count_nonzero(a), c) + av[av != 0] = 0xFF + assert_equal(np.count_nonzero(a), c) + + def test_count_nonzero(self): + # check all 12 bit combinations in a length 17 array + # covers most cases of the 16 byte unrolled code + self.check_count_nonzero(12, 17) + + @pytest.mark.slow + def test_count_nonzero_all(self): + # check all combinations in a length 17 array + # covers all cases of the 16 byte unrolled code + self.check_count_nonzero(17, 17) + + def test_count_nonzero_unaligned(self): + # prevent mistakes as e.g. gh-4060 + for o in range(7): + a = np.zeros((18,), dtype=bool)[o + 1:] + a[:o] = True + assert_equal(np.count_nonzero(a), builtins.sum(a.tolist())) + a = np.ones((18,), dtype=bool)[o + 1:] + a[:o] = False + assert_equal(np.count_nonzero(a), builtins.sum(a.tolist())) + + def _test_cast_from_flexible(self, dtype): + # empty string -> false + for n in range(3): + v = np.array(b'', (dtype, n)) + assert_equal(bool(v), False) + assert_equal(bool(v[()]), False) + assert_equal(v.astype(bool), False) + assert_(isinstance(v.astype(bool), np.ndarray)) + assert_(v[()].astype(bool) is np.False_) + + # anything else -> true + for n in range(1, 4): + for val in [b'a', b'0', b' ']: + v = np.array(val, (dtype, n)) + assert_equal(bool(v), True) + assert_equal(bool(v[()]), True) + assert_equal(v.astype(bool), True) + assert_(isinstance(v.astype(bool), np.ndarray)) + assert_(v[()].astype(bool) is np.True_) + + def test_cast_from_void(self): + self._test_cast_from_flexible(np.void) + + def test_cast_from_unicode(self): + self._test_cast_from_flexible(np.str_) + + def test_cast_from_bytes(self): + self._test_cast_from_flexible(np.bytes_) + + +class TestZeroSizeFlexible: + @staticmethod + def _zeros(shape, dtype=str): + dtype = np.dtype(dtype) + if dtype == np.void: + return np.zeros(shape, dtype=(dtype, 0)) + + # not constructable directly + dtype = np.dtype([('x', dtype, 0)]) + return np.zeros(shape, dtype=dtype)['x'] + + def test_create(self): + zs = self._zeros(10, bytes) + assert_equal(zs.itemsize, 0) + zs = self._zeros(10, np.void) + assert_equal(zs.itemsize, 0) + zs = self._zeros(10, str) + assert_equal(zs.itemsize, 0) + + def _test_sort_partition(self, name, kinds, **kwargs): + # Previously, these would all hang + for dt in [bytes, np.void, str]: + zs = self._zeros(10, dt) + sort_method = getattr(zs, name) + sort_func = getattr(np, name) + for kind in kinds: + sort_method(kind=kind, **kwargs) + sort_func(zs, kind=kind, **kwargs) + + def test_sort(self): + self._test_sort_partition('sort', kinds='qhs') + + def test_argsort(self): + self._test_sort_partition('argsort', kinds='qhs') + + def test_partition(self): + self._test_sort_partition('partition', kinds=['introselect'], kth=2) + + def test_argpartition(self): + self._test_sort_partition('argpartition', kinds=['introselect'], kth=2) + + def test_resize(self): + # previously an error + for dt in [bytes, np.void, str]: + zs = self._zeros(10, dt) + zs.resize(25) + zs.resize((10, 10)) + + def test_view(self): + for dt in [bytes, np.void, str]: + zs = self._zeros(10, dt) + + # viewing as itself should be allowed + assert_equal(zs.view(dt).dtype, np.dtype(dt)) + + # viewing as any non-empty type gives an empty result + assert_equal(zs.view((dt, 1)).shape, (0,)) + + def test_dumps(self): + zs = self._zeros(10, int) + assert_equal(zs, pickle.loads(zs.dumps())) + + def test_pickle(self): + for proto in range(2, pickle.HIGHEST_PROTOCOL + 1): + for dt in [bytes, np.void, str]: + zs = self._zeros(10, dt) + p = pickle.dumps(zs, protocol=proto) + zs2 = pickle.loads(p) + + assert_equal(zs.dtype, zs2.dtype) + + def test_pickle_empty(self): + """Checking if an empty array pickled and un-pickled will not cause a + segmentation fault""" + arr = np.array([]).reshape(999999, 0) + pk_dmp = pickle.dumps(arr) + pk_load = pickle.loads(pk_dmp) + + assert pk_load.size == 0 + + @pytest.mark.skipif(pickle.HIGHEST_PROTOCOL < 5, + reason="requires pickle protocol 5") + def test_pickle_with_buffercallback(self): + array = np.arange(10) + buffers = [] + bytes_string = pickle.dumps(array, buffer_callback=buffers.append, + protocol=5) + array_from_buffer = pickle.loads(bytes_string, buffers=buffers) + # when using pickle protocol 5 with buffer callbacks, + # array_from_buffer is reconstructed from a buffer holding a view + # to the initial array's data, so modifying an element in array + # should modify it in array_from_buffer too. + array[0] = -1 + assert array_from_buffer[0] == -1, array_from_buffer[0] + + +class TestMethods: + + sort_kinds = ['quicksort', 'heapsort', 'stable'] + + def test_all_where(self): + a = np.array([[True, False, True], + [False, False, False], + [True, True, True]]) + wh_full = np.array([[True, False, True], + [False, False, False], + [True, False, True]]) + wh_lower = np.array([[False], + [False], + [True]]) + for _ax in [0, None]: + assert_equal(a.all(axis=_ax, where=wh_lower), + np.all(a[wh_lower[:, 0], :], axis=_ax)) + assert_equal(np.all(a, axis=_ax, where=wh_lower), + a[wh_lower[:, 0], :].all(axis=_ax)) + + assert_equal(a.all(where=wh_full), True) + assert_equal(np.all(a, where=wh_full), True) + assert_equal(a.all(where=False), True) + assert_equal(np.all(a, where=False), True) + + def test_any_where(self): + a = np.array([[True, False, True], + [False, False, False], + [True, True, True]]) + wh_full = np.array([[False, True, False], + [True, True, True], + [False, False, False]]) + wh_middle = np.array([[False], + [True], + [False]]) + for _ax in [0, None]: + assert_equal(a.any(axis=_ax, where=wh_middle), + np.any(a[wh_middle[:, 0], :], axis=_ax)) + assert_equal(np.any(a, axis=_ax, where=wh_middle), + a[wh_middle[:, 0], :].any(axis=_ax)) + assert_equal(a.any(where=wh_full), False) + assert_equal(np.any(a, where=wh_full), False) + assert_equal(a.any(where=False), False) + assert_equal(np.any(a, where=False), False) + + @pytest.mark.parametrize("dtype", + ["i8", "U10", "object", "datetime64[ms]"]) + def test_any_and_all_result_dtype(self, dtype): + arr = np.ones(3, dtype=dtype) + assert arr.any().dtype == np.bool + assert arr.all().dtype == np.bool + + def test_any_and_all_object_dtype(self): + # (seberg) Not sure we should even allow dtype here, but it is. + arr = np.ones(3, dtype=object) + # keepdims to prevent getting a scalar. + assert arr.any(dtype=object, keepdims=True).dtype == object + assert arr.all(dtype=object, keepdims=True).dtype == object + + def test_compress(self): + tgt = [[5, 6, 7, 8, 9]] + arr = np.arange(10).reshape(2, 5) + out = arr.compress([0, 1], axis=0) + assert_equal(out, tgt) + + tgt = [[1, 3], [6, 8]] + out = arr.compress([0, 1, 0, 1, 0], axis=1) + assert_equal(out, tgt) + + tgt = [[1], [6]] + arr = np.arange(10).reshape(2, 5) + out = arr.compress([0, 1], axis=1) + assert_equal(out, tgt) + + arr = np.arange(10).reshape(2, 5) + out = arr.compress([0, 1]) + assert_equal(out, 1) + + def test_choose(self): + x = 2 * np.ones((3,), dtype=int) + y = 3 * np.ones((3,), dtype=int) + x2 = 2 * np.ones((2, 3), dtype=int) + y2 = 3 * np.ones((2, 3), dtype=int) + ind = np.array([0, 0, 1]) + + A = ind.choose((x, y)) + assert_equal(A, [2, 2, 3]) + + A = ind.choose((x2, y2)) + assert_equal(A, [[2, 2, 3], [2, 2, 3]]) + + A = ind.choose((x, y2)) + assert_equal(A, [[2, 2, 3], [2, 2, 3]]) + + oned = np.ones(1) + # gh-12031, caused SEGFAULT + assert_raises(TypeError, oned.choose, np.void(0), [oned]) + + out = np.array(0) + ret = np.choose(np.array(1), [10, 20, 30], out=out) + assert out is ret + assert_equal(out[()], 20) + + # gh-6272 check overlap on out + x = np.arange(5) + y = np.choose([0, 0, 0], [x[:3], x[:3], x[:3]], out=x[1:4], mode='wrap') + assert_equal(y, np.array([0, 1, 2])) + + # gh_28206 check fail when out not writeable + x = np.arange(3) + out = np.zeros(3) + out.setflags(write=False) + assert_raises(ValueError, np.choose, [0, 1, 2], [x, x, x], out=out) + + def test_prod(self): + ba = [1, 2, 10, 11, 6, 5, 4] + ba2 = [[1, 2, 3, 4], [5, 6, 7, 9], [10, 3, 4, 5]] + + for ctype in [np.int16, np.uint16, np.int32, np.uint32, + np.float32, np.float64, np.complex64, np.complex128]: + a = np.array(ba, ctype) + a2 = np.array(ba2, ctype) + if ctype in ['1', 'b']: + assert_raises(ArithmeticError, a.prod) + assert_raises(ArithmeticError, a2.prod, axis=1) + else: + assert_equal(a.prod(axis=0), 26400) + assert_array_equal(a2.prod(axis=0), + np.array([50, 36, 84, 180], ctype)) + assert_array_equal(a2.prod(axis=-1), + np.array([24, 1890, 600], ctype)) + + @pytest.mark.parametrize('dtype', [None, object]) + def test_repeat(self, dtype): + m = np.array([1, 2, 3, 4, 5, 6], dtype=dtype) + m_rect = m.reshape((2, 3)) + + A = m.repeat([1, 3, 2, 1, 1, 2]) + assert_equal(A, [1, 2, 2, 2, 3, + 3, 4, 5, 6, 6]) + + A = m.repeat(2) + assert_equal(A, [1, 1, 2, 2, 3, 3, + 4, 4, 5, 5, 6, 6]) + + A = m_rect.repeat([2, 1], axis=0) + assert_equal(A, [[1, 2, 3], + [1, 2, 3], + [4, 5, 6]]) + + A = m_rect.repeat([1, 3, 2], axis=1) + assert_equal(A, [[1, 2, 2, 2, 3, 3], + [4, 5, 5, 5, 6, 6]]) + + A = m_rect.repeat(2, axis=0) + assert_equal(A, [[1, 2, 3], + [1, 2, 3], + [4, 5, 6], + [4, 5, 6]]) + + A = m_rect.repeat(2, axis=1) + assert_equal(A, [[1, 1, 2, 2, 3, 3], + [4, 4, 5, 5, 6, 6]]) + + def test_reshape(self): + arr = np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]) + + tgt = [[1, 2, 3, 4, 5, 6], [7, 8, 9, 10, 11, 12]] + assert_equal(arr.reshape(2, 6), tgt) + + tgt = [[1, 2, 3, 4], [5, 6, 7, 8], [9, 10, 11, 12]] + assert_equal(arr.reshape(3, 4), tgt) + + tgt = [[1, 10, 8, 6], [4, 2, 11, 9], [7, 5, 3, 12]] + assert_equal(arr.reshape((3, 4), order='F'), tgt) + + tgt = [[1, 4, 7, 10], [2, 5, 8, 11], [3, 6, 9, 12]] + assert_equal(arr.T.reshape((3, 4), order='C'), tgt) + + def test_round(self): + def check_round(arr, expected, *round_args): + assert_equal(arr.round(*round_args), expected) + # With output array + out = np.zeros_like(arr) + res = arr.round(*round_args, out=out) + assert_equal(out, expected) + assert out is res + + check_round(np.array([1, 2, 3]), [1, 2, 3]) + check_round(np.array([1.2, 1.5]), [1, 2]) + check_round(np.array(1.5), 2) + check_round(np.array([12.2, 15.5]), [10, 20], -1) + check_round(np.array([12.15, 15.51]), [12.2, 15.5], 1) + # Complex rounding + check_round(np.array([4.5 + 1.5j]), [4 + 2j]) + check_round(np.array([12.5 + 15.5j]), [10 + 20j], -1) + + @pytest.mark.parametrize('dt', ['uint8', int, float, complex]) + def test_round_copies(self, dt): + a = np.arange(3, dtype=dt) + assert not np.shares_memory(a.round(), a) + assert not np.shares_memory(a.round(decimals=2), a) + + out = np.empty(3, dtype=dt) + assert not np.shares_memory(a.round(out=out), a) + + a = np.arange(12).astype(dt).reshape(3, 4).T + + assert a.flags.f_contiguous + assert np.round(a).flags.f_contiguous + + def test_squeeze(self): + a = np.array([[[1], [2], [3]]]) + assert_equal(a.squeeze(), [1, 2, 3]) + assert_equal(a.squeeze(axis=(0,)), [[1], [2], [3]]) + assert_raises(ValueError, a.squeeze, axis=(1,)) + assert_equal(a.squeeze(axis=(2,)), [[1, 2, 3]]) + + def test_transpose(self): + a = np.array([[1, 2], [3, 4]]) + assert_equal(a.transpose(), [[1, 3], [2, 4]]) + assert_raises(ValueError, lambda: a.transpose(0)) + assert_raises(ValueError, lambda: a.transpose(0, 0)) + assert_raises(ValueError, lambda: a.transpose(0, 1, 2)) + + def test_sort(self): + # test ordering for floats and complex containing nans. It is only + # necessary to check the less-than comparison, so sorts that + # only follow the insertion sort path are sufficient. We only + # test doubles and complex doubles as the logic is the same. + + # check doubles + msg = "Test real sort order with nans" + a = np.array([np.nan, 1, 0]) + b = np.sort(a) + assert_equal(b, a[::-1], msg) + # check complex + msg = "Test complex sort order with nans" + a = np.zeros(9, dtype=np.complex128) + a.real += [np.nan, np.nan, np.nan, 1, 0, 1, 1, 0, 0] + a.imag += [np.nan, 1, 0, np.nan, np.nan, 1, 0, 1, 0] + b = np.sort(a) + assert_equal(b, a[::-1], msg) + + with assert_raises_regex( + ValueError, + "`kind` and keyword parameters can't be provided at the same time" + ): + np.sort(a, kind="stable", stable=True) + + # all c scalar sorts use the same code with different types + # so it suffices to run a quick check with one type. The number + # of sorted items must be greater than ~50 to check the actual + # algorithm because quick and merge sort fall over to insertion + # sort for small arrays. + + @pytest.mark.parametrize('dtype', [np.uint8, np.uint16, np.uint32, np.uint64, + np.float16, np.float32, np.float64, + np.longdouble]) + def test_sort_unsigned(self, dtype): + a = np.arange(101, dtype=dtype) + b = a[::-1].copy() + for kind in self.sort_kinds: + msg = f"scalar sort, kind={kind}" + c = a.copy() + c.sort(kind=kind) + assert_equal(c, a, msg) + c = b.copy() + c.sort(kind=kind) + assert_equal(c, a, msg) + + @pytest.mark.parametrize('dtype', + [np.int8, np.int16, np.int32, np.int64, np.float16, + np.float32, np.float64, np.longdouble]) + def test_sort_signed(self, dtype): + a = np.arange(-50, 51, dtype=dtype) + b = a[::-1].copy() + for kind in self.sort_kinds: + msg = f"scalar sort, kind={kind}" + c = a.copy() + c.sort(kind=kind) + assert_equal(c, a, msg) + c = b.copy() + c.sort(kind=kind) + assert_equal(c, a, msg) + + @pytest.mark.parametrize('dtype', [np.float32, np.float64, np.longdouble]) + @pytest.mark.parametrize('part', ['real', 'imag']) + def test_sort_complex(self, part, dtype): + # test complex sorts. These use the same code as the scalars + # but the compare function differs. + cdtype = { + np.single: np.csingle, + np.double: np.cdouble, + np.longdouble: np.clongdouble, + }[dtype] + a = np.arange(-50, 51, dtype=dtype) + b = a[::-1].copy() + ai = (a * (1 + 1j)).astype(cdtype) + bi = (b * (1 + 1j)).astype(cdtype) + setattr(ai, part, 1) + setattr(bi, part, 1) + for kind in self.sort_kinds: + msg = f"complex sort, {part} part == 1, kind={kind}" + c = ai.copy() + c.sort(kind=kind) + assert_equal(c, ai, msg) + c = bi.copy() + c.sort(kind=kind) + assert_equal(c, ai, msg) + + def test_sort_complex_byte_swapping(self): + # test sorting of complex arrays requiring byte-swapping, gh-5441 + for endianness in '<>': + for dt in np.typecodes['Complex']: + arr = np.array([1 + 3.j, 2 + 2.j, 3 + 1.j], dtype=endianness + dt) + c = arr.copy() + c.sort() + msg = f'byte-swapped complex sort, dtype={dt}' + assert_equal(c, arr, msg) + + @pytest.mark.parametrize('dtype', [np.bytes_, np.str_]) + def test_sort_string(self, dtype): + # np.array will perform the encoding to bytes for us in the bytes test + a = np.array(['aaaaaaaa' + chr(i) for i in range(101)], dtype=dtype) + b = a[::-1].copy() + for kind in self.sort_kinds: + msg = f"kind={kind}" + c = a.copy() + c.sort(kind=kind) + assert_equal(c, a, msg) + c = b.copy() + c.sort(kind=kind) + assert_equal(c, a, msg) + + def test_sort_object(self): + # test object array sorts. + a = np.empty((101,), dtype=object) + a[:] = list(range(101)) + b = a[::-1] + for kind in ['q', 'h', 'm']: + msg = f"kind={kind}" + c = a.copy() + c.sort(kind=kind) + assert_equal(c, a, msg) + c = b.copy() + c.sort(kind=kind) + assert_equal(c, a, msg) + + @pytest.mark.parametrize("dt", [ + np.dtype([('f', float), ('i', int)]), + np.dtype([('f', float), ('i', object)])]) + @pytest.mark.parametrize("step", [1, 2]) + def test_sort_structured(self, dt, step): + # test record array sorts. + a = np.array([(i, i) for i in range(101 * step)], dtype=dt) + b = a[::-1] + for kind in ['q', 'h', 'm']: + msg = f"kind={kind}" + c = a.copy()[::step] + indx = c.argsort(kind=kind) + c.sort(kind=kind) + assert_equal(c, a[::step], msg) + assert_equal(a[::step][indx], a[::step], msg) + c = b.copy()[::step] + indx = c.argsort(kind=kind) + c.sort(kind=kind) + assert_equal(c, a[step - 1::step], msg) + assert_equal(b[::step][indx], a[step - 1::step], msg) + + @pytest.mark.parametrize('dtype', ['datetime64[D]', 'timedelta64[D]']) + def test_sort_time(self, dtype): + # test datetime64 and timedelta64 sorts. + a = np.arange(0, 101, dtype=dtype) + b = a[::-1] + for kind in ['q', 'h', 'm']: + msg = f"kind={kind}" + c = a.copy() + c.sort(kind=kind) + assert_equal(c, a, msg) + c = b.copy() + c.sort(kind=kind) + assert_equal(c, a, msg) + + def test_sort_axis(self): + # check axis handling. This should be the same for all type + # specific sorts, so we only check it for one type and one kind + a = np.array([[3, 2], [1, 0]]) + b = np.array([[1, 0], [3, 2]]) + c = np.array([[2, 3], [0, 1]]) + d = a.copy() + d.sort(axis=0) + assert_equal(d, b, "test sort with axis=0") + d = a.copy() + d.sort(axis=1) + assert_equal(d, c, "test sort with axis=1") + d = a.copy() + d.sort() + assert_equal(d, c, "test sort with default axis") + + def test_sort_size_0(self): + # check axis handling for multidimensional empty arrays + a = np.array([]).reshape((3, 2, 1, 0)) + for axis in range(-a.ndim, a.ndim): + msg = f'test empty array sort with axis={axis}' + assert_equal(np.sort(a, axis=axis), a, msg) + msg = 'test empty array sort with axis=None' + assert_equal(np.sort(a, axis=None), a.ravel(), msg) + + def test_sort_bad_ordering(self): + # test generic class with bogus ordering, + # should not segfault. + class Boom: + def __lt__(self, other): + return True + + a = np.array([Boom()] * 100, dtype=object) + for kind in self.sort_kinds: + msg = f"kind={kind}" + c = a.copy() + c.sort(kind=kind) + assert_equal(c, a, msg) + + def test_void_sort(self): + # gh-8210 - previously segfaulted + for i in range(4): + rand = np.random.randint(256, size=4000, dtype=np.uint8) + arr = rand.view('V4') + arr[::-1].sort() + + dt = np.dtype([('val', 'i4', (1,))]) + for i in range(4): + rand = np.random.randint(256, size=4000, dtype=np.uint8) + arr = rand.view(dt) + arr[::-1].sort() + + def test_sort_raises(self): + # gh-9404 + arr = np.array([0, datetime.now(), 1], dtype=object) + for kind in self.sort_kinds: + assert_raises(TypeError, arr.sort, kind=kind) + # gh-3879 + + class Raiser: + def raises_anything(*args, **kwargs): + raise TypeError("SOMETHING ERRORED") + __eq__ = __ne__ = __lt__ = __gt__ = __ge__ = __le__ = raises_anything + arr = np.array([[Raiser(), n] for n in range(10)]).reshape(-1) + np.random.shuffle(arr) + for kind in self.sort_kinds: + assert_raises(TypeError, arr.sort, kind=kind) + + def test_sort_degraded(self): + # test degraded dataset would take minutes to run with normal qsort + d = np.arange(1000000) + do = d.copy() + x = d + # create a median of 3 killer where each median is the sorted second + # last element of the quicksort partition + while x.size > 3: + mid = x.size // 2 + x[mid], x[-2] = x[-2], x[mid] + x = x[:-2] + + assert_equal(np.sort(d), do) + assert_equal(d[np.argsort(d)], do) + + def test_copy(self): + def assert_fortran(arr): + assert_(arr.flags.fortran) + assert_(arr.flags.f_contiguous) + assert_(not arr.flags.c_contiguous) + + def assert_c(arr): + assert_(not arr.flags.fortran) + assert_(not arr.flags.f_contiguous) + assert_(arr.flags.c_contiguous) + + a = np.empty((2, 2), order='F') + # Test copying a Fortran array + assert_c(a.copy()) + assert_c(a.copy('C')) + assert_fortran(a.copy('F')) + assert_fortran(a.copy('A')) + + # Now test starting with a C array. + a = np.empty((2, 2), order='C') + assert_c(a.copy()) + assert_c(a.copy('C')) + assert_fortran(a.copy('F')) + assert_c(a.copy('A')) + + @pytest.mark.parametrize("dtype", ['O', np.int32, 'i,O']) + def test__deepcopy__(self, dtype): + # Force the entry of NULLs into array + a = np.empty(4, dtype=dtype) + ctypes.memset(a.ctypes.data, 0, a.nbytes) + + # Ensure no error is raised, see gh-21833 + b = a.__deepcopy__({}) + + a[0] = 42 + with pytest.raises(AssertionError): + assert_array_equal(a, b) + + def test__deepcopy___void_scalar(self): + # see comments in gh-29643 + value = np.void('Rex', dtype=[('name', 'U10')]) + value_deepcopy = value.__deepcopy__(None) + value[0] = None + assert value_deepcopy[0] == 'Rex' + + @pytest.mark.parametrize("sctype", [np.int64, np.float32, np.float64]) + def test__deepcopy__scalar(self, sctype): + # test optimization from gh-29656 + value = sctype(1.1) + value_deepcopy = value.__deepcopy__(None) + assert value is value_deepcopy + + def test__deepcopy__catches_failure(self): + class MyObj: + def __deepcopy__(self, *args, **kwargs): + raise RuntimeError + + arr = np.array([1, MyObj(), 3], dtype='O') + with pytest.raises(RuntimeError): + arr.__deepcopy__({}) + + def test_sort_order(self): + # Test sorting an array with fields + x1 = np.array([21, 32, 14]) + x2 = np.array(['my', 'first', 'name']) + x3 = np.array([3.1, 4.5, 6.2]) + r = np.rec.fromarrays([x1, x2, x3], names='id,word,number') + + r.sort(order=['id']) + assert_equal(r.id, np.array([14, 21, 32])) + assert_equal(r.word, np.array(['name', 'my', 'first'])) + assert_equal(r.number, np.array([6.2, 3.1, 4.5])) + + r.sort(order=['word']) + assert_equal(r.id, np.array([32, 21, 14])) + assert_equal(r.word, np.array(['first', 'my', 'name'])) + assert_equal(r.number, np.array([4.5, 3.1, 6.2])) + + r.sort(order=['number']) + assert_equal(r.id, np.array([21, 32, 14])) + assert_equal(r.word, np.array(['my', 'first', 'name'])) + assert_equal(r.number, np.array([3.1, 4.5, 6.2])) + + assert_raises_regex(ValueError, 'duplicate', + lambda: r.sort(order=['id', 'id'])) + + if sys.byteorder == 'little': + strtype = '>i2' + else: + strtype = '': + for dt in np.typecodes['Complex']: + arr = np.array([1 + 3.j, 2 + 2.j, 3 + 1.j], dtype=endianness + dt) + msg = f'byte-swapped complex argsort, dtype={dt}' + assert_equal(arr.argsort(), + np.arange(len(arr), dtype=np.intp), msg) + + # test string argsorts. + s = 'aaaaaaaa' + a = np.array([s + chr(i) for i in range(101)]) + b = a[::-1].copy() + r = np.arange(101) + rr = r[::-1] + for kind in self.sort_kinds: + msg = f"string argsort, kind={kind}" + assert_equal(a.copy().argsort(kind=kind), r, msg) + assert_equal(b.copy().argsort(kind=kind), rr, msg) + + # test unicode argsorts. + s = 'aaaaaaaa' + a = np.array([s + chr(i) for i in range(101)], dtype=np.str_) + b = a[::-1] + r = np.arange(101) + rr = r[::-1] + for kind in self.sort_kinds: + msg = f"unicode argsort, kind={kind}" + assert_equal(a.copy().argsort(kind=kind), r, msg) + assert_equal(b.copy().argsort(kind=kind), rr, msg) + + # test object array argsorts. + a = np.empty((101,), dtype=object) + a[:] = list(range(101)) + b = a[::-1] + r = np.arange(101) + rr = r[::-1] + for kind in self.sort_kinds: + msg = f"object argsort, kind={kind}" + assert_equal(a.copy().argsort(kind=kind), r, msg) + assert_equal(b.copy().argsort(kind=kind), rr, msg) + + # test structured array argsorts. + dt = np.dtype([('f', float), ('i', int)]) + a = np.array([(i, i) for i in range(101)], dtype=dt) + b = a[::-1] + r = np.arange(101) + rr = r[::-1] + for kind in self.sort_kinds: + msg = f"structured array argsort, kind={kind}" + assert_equal(a.copy().argsort(kind=kind), r, msg) + assert_equal(b.copy().argsort(kind=kind), rr, msg) + + # test datetime64 argsorts. + a = np.arange(0, 101, dtype='datetime64[D]') + b = a[::-1] + r = np.arange(101) + rr = r[::-1] + for kind in ['q', 'h', 'm']: + msg = f"datetime64 argsort, kind={kind}" + assert_equal(a.copy().argsort(kind=kind), r, msg) + assert_equal(b.copy().argsort(kind=kind), rr, msg) + + # test timedelta64 argsorts. + a = np.arange(0, 101, dtype='timedelta64[D]') + b = a[::-1] + r = np.arange(101) + rr = r[::-1] + for kind in ['q', 'h', 'm']: + msg = f"timedelta64 argsort, kind={kind}" + assert_equal(a.copy().argsort(kind=kind), r, msg) + assert_equal(b.copy().argsort(kind=kind), rr, msg) + + # check axis handling. This should be the same for all type + # specific argsorts, so we only check it for one type and one kind + a = np.array([[3, 2], [1, 0]]) + b = np.array([[1, 1], [0, 0]]) + c = np.array([[1, 0], [1, 0]]) + assert_equal(a.copy().argsort(axis=0), b) + assert_equal(a.copy().argsort(axis=1), c) + assert_equal(a.copy().argsort(), c) + + # check axis handling for multidimensional empty arrays + a = np.array([]).reshape((3, 2, 1, 0)) + for axis in range(-a.ndim, a.ndim): + msg = f'test empty array argsort with axis={axis}' + assert_equal(np.argsort(a, axis=axis), + np.zeros_like(a, dtype=np.intp), msg) + msg = 'test empty array argsort with axis=None' + assert_equal(np.argsort(a, axis=None), + np.zeros_like(a.ravel(), dtype=np.intp), msg) + + # check that stable argsorts are stable + r = np.arange(100) + # scalars + a = np.zeros(100) + assert_equal(a.argsort(kind='m'), r) + # complex + a = np.zeros(100, dtype=complex) + assert_equal(a.argsort(kind='m'), r) + # string + a = np.array(['aaaaaaaaa' for i in range(100)]) + assert_equal(a.argsort(kind='m'), r) + # unicode + a = np.array(['aaaaaaaaa' for i in range(100)], dtype=np.str_) + assert_equal(a.argsort(kind='m'), r) + + with assert_raises_regex( + ValueError, + "`kind` and keyword parameters can't be provided at the same time" + ): + np.argsort(a, kind="stable", stable=True) + + def test_sort_unicode_kind(self): + d = np.arange(10) + k = b'\xc3\xa4'.decode("UTF8") + assert_raises(ValueError, d.sort, kind=k) + assert_raises(ValueError, d.argsort, kind=k) + + @pytest.mark.parametrize('a', [ + np.array([0, 1, np.nan], dtype=np.float16), + np.array([0, 1, np.nan], dtype=np.float32), + np.array([0, 1, np.nan]), + ]) + def test_searchsorted_floats(self, a): + # test for floats arrays containing nans. Explicitly test + # half, single, and double precision floats to verify that + # the NaN-handling is correct. + msg = f"Test real ({a.dtype}) searchsorted with nans, side='l'" + b = a.searchsorted(a, side='left') + assert_equal(b, np.arange(3), msg) + msg = f"Test real ({a.dtype}) searchsorted with nans, side='r'" + b = a.searchsorted(a, side='right') + assert_equal(b, np.arange(1, 4), msg) + # check keyword arguments + a.searchsorted(v=1) + x = np.array([0, 1, np.nan], dtype='float32') + y = np.searchsorted(x, x[-1]) + assert_equal(y, 2) + + def test_searchsorted_complex(self): + # test for complex arrays containing nans. + # The search sorted routines use the compare functions for the + # array type, so this checks if that is consistent with the sort + # order. + # check double complex + a = np.zeros(9, dtype=np.complex128) + a.real += [0, 0, 1, 1, 0, 1, np.nan, np.nan, np.nan] + a.imag += [0, 1, 0, 1, np.nan, np.nan, 0, 1, np.nan] + msg = "Test complex searchsorted with nans, side='l'" + b = a.searchsorted(a, side='left') + assert_equal(b, np.arange(9), msg) + msg = "Test complex searchsorted with nans, side='r'" + b = a.searchsorted(a, side='right') + assert_equal(b, np.arange(1, 10), msg) + msg = "Test searchsorted with little endian, side='l'" + a = np.array([0, 128], dtype=' p[:, i]).all(), + msg="%d: %r < %r" % (i, p[:, i], p[:, i + 1:].T)) + for row in range(p.shape[0]): + self.assert_partitioned(p[row], [i]) + self.assert_partitioned(parg[row], [i]) + + p = np.partition(d0, i, axis=0, kind=k) + parg = d0[np.argpartition(d0, i, axis=0, kind=k), + np.arange(d0.shape[1])[None, :]] + aae(p[i, :], np.array([i] * d1.shape[0], dtype=dt)) + # array_less does not seem to work right + at((p[:i, :] <= p[i, :]).all(), + msg="%d: %r <= %r" % (i, p[i, :], p[:i, :])) + at((p[i + 1:, :] > p[i, :]).all(), + msg="%d: %r < %r" % (i, p[i, :], p[:, i + 1:])) + for col in range(p.shape[1]): + self.assert_partitioned(p[:, col], [i]) + self.assert_partitioned(parg[:, col], [i]) + + # check inplace + dc = d.copy() + dc.partition(i, kind=k) + assert_equal(dc, np.partition(d, i, kind=k)) + dc = d0.copy() + dc.partition(i, axis=0, kind=k) + assert_equal(dc, np.partition(d0, i, axis=0, kind=k)) + dc = d1.copy() + dc.partition(i, axis=1, kind=k) + assert_equal(dc, np.partition(d1, i, axis=1, kind=k)) + + def assert_partitioned(self, d, kth): + prev = 0 + for k in np.sort(kth): + assert_array_compare(operator.__le__, d[prev:k], d[k], + err_msg='kth %d' % k) + assert_((d[k:] >= d[k]).all(), + msg="kth %d, %r not greater equal %r" % (k, d[k:], d[k])) + prev = k + 1 + + def test_partition_iterative(self): + d = np.arange(17) + kth = (0, 1, 2, 429, 231) + assert_raises(ValueError, d.partition, kth) + assert_raises(ValueError, d.argpartition, kth) + d = np.arange(10).reshape((2, 5)) + assert_raises(ValueError, d.partition, kth, axis=0) + assert_raises(ValueError, d.partition, kth, axis=1) + assert_raises(ValueError, np.partition, d, kth, axis=1) + assert_raises(ValueError, np.partition, d, kth, axis=None) + + d = np.array([3, 4, 2, 1]) + p = np.partition(d, (0, 3)) + self.assert_partitioned(p, (0, 3)) + self.assert_partitioned(d[np.argpartition(d, (0, 3))], (0, 3)) + + assert_array_equal(p, np.partition(d, (-3, -1))) + assert_array_equal(p, d[np.argpartition(d, (-3, -1))]) + + d = np.arange(17) + np.random.shuffle(d) + d.partition(range(d.size)) + assert_array_equal(np.arange(17), d) + np.random.shuffle(d) + assert_array_equal(np.arange(17), d[d.argpartition(range(d.size))]) + + # test unsorted kth + d = np.arange(17) + np.random.shuffle(d) + keys = np.array([1, 3, 8, -2]) + np.random.shuffle(d) + p = np.partition(d, keys) + self.assert_partitioned(p, keys) + p = d[np.argpartition(d, keys)] + self.assert_partitioned(p, keys) + np.random.shuffle(keys) + assert_array_equal(np.partition(d, keys), p) + assert_array_equal(d[np.argpartition(d, keys)], p) + + # equal kth + d = np.arange(20)[::-1] + self.assert_partitioned(np.partition(d, [5] * 4), [5]) + self.assert_partitioned(np.partition(d, [5] * 4 + [6, 13]), + [5] * 4 + [6, 13]) + self.assert_partitioned(d[np.argpartition(d, [5] * 4)], [5]) + self.assert_partitioned(d[np.argpartition(d, [5] * 4 + [6, 13])], + [5] * 4 + [6, 13]) + + d = np.arange(12) + np.random.shuffle(d) + d1 = np.tile(np.arange(12), (4, 1)) + map(np.random.shuffle, d1) + d0 = np.transpose(d1) + + kth = (1, 6, 7, -1) + p = np.partition(d1, kth, axis=1) + pa = d1[np.arange(d1.shape[0])[:, None], + d1.argpartition(kth, axis=1)] + assert_array_equal(p, pa) + for i in range(d1.shape[0]): + self.assert_partitioned(p[i, :], kth) + p = np.partition(d0, kth, axis=0) + pa = d0[np.argpartition(d0, kth, axis=0), + np.arange(d0.shape[1])[None, :]] + assert_array_equal(p, pa) + for i in range(d0.shape[1]): + self.assert_partitioned(p[:, i], kth) + + def test_partition_cdtype(self): + d = np.array([('Galahad', 1.7, 38), ('Arthur', 1.8, 41), + ('Lancelot', 1.9, 38)], + dtype=[('name', '|S10'), ('height', ' (numpy ufunc, has_in_place_version, preferred_dtype) + ops = { + 'add': (np.add, True, float), + 'sub': (np.subtract, True, float), + 'mul': (np.multiply, True, float), + 'truediv': (np.true_divide, True, float), + 'floordiv': (np.floor_divide, True, float), + 'mod': (np.remainder, True, float), + 'divmod': (np.divmod, False, float), + 'pow': (np.power, True, int), + 'lshift': (np.left_shift, True, int), + 'rshift': (np.right_shift, True, int), + 'and': (np.bitwise_and, True, int), + 'xor': (np.bitwise_xor, True, int), + 'or': (np.bitwise_or, True, int), + 'matmul': (np.matmul, True, float), + # 'ge': (np.less_equal, False), + # 'gt': (np.less, False), + # 'le': (np.greater_equal, False), + # 'lt': (np.greater, False), + # 'eq': (np.equal, False), + # 'ne': (np.not_equal, False), + } + + class Coerced(Exception): + pass + + def array_impl(self): + raise Coerced + + def op_impl(self, other): + return "forward" + + def rop_impl(self, other): + return "reverse" + + def iop_impl(self, other): + return "in-place" + + def array_ufunc_impl(self, ufunc, method, *args, **kwargs): + return ("__array_ufunc__", ufunc, method, args, kwargs) + + # Create an object with the given base, in the given module, with a + # bunch of placeholder __op__ methods, and optionally a + # __array_ufunc__ and __array_priority__. + def make_obj(base, array_priority=False, array_ufunc=False, + alleged_module="__main__"): + class_namespace = {"__array__": array_impl} + if array_priority is not False: + class_namespace["__array_priority__"] = array_priority + for op in ops: + class_namespace[f"__{op}__"] = op_impl + class_namespace[f"__r{op}__"] = rop_impl + class_namespace[f"__i{op}__"] = iop_impl + if array_ufunc is not False: + class_namespace["__array_ufunc__"] = array_ufunc + eval_namespace = {"base": base, + "class_namespace": class_namespace, + "__name__": alleged_module, + } + MyType = eval("type('MyType', (base,), class_namespace)", + eval_namespace) + if issubclass(MyType, np.ndarray): + # Use this range to avoid special case weirdnesses around + # divide-by-0, pow(x, 2), overflow due to pow(big, big), etc. + return np.arange(3, 7).reshape(2, 2).view(MyType) + else: + return MyType() + + def check(obj, binop_override_expected, ufunc_override_expected, + inplace_override_expected, check_scalar=True): + for op, (ufunc, has_inplace, dtype) in ops.items(): + err_msg = ('op: %s, ufunc: %s, has_inplace: %s, dtype: %s' + % (op, ufunc, has_inplace, dtype)) + check_objs = [np.arange(3, 7, dtype=dtype).reshape(2, 2)] + if check_scalar: + check_objs.append(check_objs[0][0]) + for arr in check_objs: + arr_method = getattr(arr, f"__{op}__") + + def first_out_arg(result): + if op == "divmod": + assert_(isinstance(result, tuple)) + return result[0] + else: + return result + + # arr __op__ obj + if binop_override_expected: + assert_equal(arr_method(obj), NotImplemented, err_msg) + elif ufunc_override_expected: + assert_equal(arr_method(obj)[0], "__array_ufunc__", + err_msg) + elif (isinstance(obj, np.ndarray) and + (type(obj).__array_ufunc__ is + np.ndarray.__array_ufunc__)): + # __array__ gets ignored + res = first_out_arg(arr_method(obj)) + assert_(res.__class__ is obj.__class__, err_msg) + else: + assert_raises((TypeError, Coerced), + arr_method, obj, err_msg=err_msg) + # obj __op__ arr + arr_rmethod = getattr(arr, f"__r{op}__") + if ufunc_override_expected: + res = arr_rmethod(obj) + assert_equal(res[0], "__array_ufunc__", + err_msg=err_msg) + assert_equal(res[1], ufunc, err_msg=err_msg) + elif (isinstance(obj, np.ndarray) and + (type(obj).__array_ufunc__ is + np.ndarray.__array_ufunc__)): + # __array__ gets ignored + res = first_out_arg(arr_rmethod(obj)) + assert_(res.__class__ is obj.__class__, err_msg) + else: + # __array_ufunc__ = "asdf" creates a TypeError + assert_raises((TypeError, Coerced), + arr_rmethod, obj, err_msg=err_msg) + + # arr __iop__ obj + # array scalars don't have in-place operators + if has_inplace and isinstance(arr, np.ndarray): + arr_imethod = getattr(arr, f"__i{op}__") + if inplace_override_expected: + assert_equal(arr_method(obj), NotImplemented, + err_msg=err_msg) + elif ufunc_override_expected: + res = arr_imethod(obj) + assert_equal(res[0], "__array_ufunc__", err_msg) + assert_equal(res[1], ufunc, err_msg) + assert_(type(res[-1]["out"]) is tuple, err_msg) + assert_(res[-1]["out"][0] is arr, err_msg) + elif (isinstance(obj, np.ndarray) and + (type(obj).__array_ufunc__ is + np.ndarray.__array_ufunc__)): + # __array__ gets ignored + assert_(arr_imethod(obj) is arr, err_msg) + else: + assert_raises((TypeError, Coerced), + arr_imethod, obj, + err_msg=err_msg) + + op_fn = getattr(operator, op, None) + if op_fn is None: + op_fn = getattr(operator, op + "_", None) + if op_fn is None: + op_fn = getattr(builtins, op) + assert_equal(op_fn(obj, arr), "forward", err_msg) + if not isinstance(obj, np.ndarray): + if binop_override_expected: + assert_equal(op_fn(arr, obj), "reverse", err_msg) + elif ufunc_override_expected: + assert_equal(op_fn(arr, obj)[0], "__array_ufunc__", + err_msg) + if ufunc_override_expected: + assert_equal(ufunc(obj, arr)[0], "__array_ufunc__", + err_msg) + + # No array priority, no array_ufunc -> nothing called + check(make_obj(object), False, False, False) + # Negative array priority, no array_ufunc -> nothing called + # (has to be very negative, because scalar priority is -1000000.0) + check(make_obj(object, array_priority=-2**30), False, False, False) + # Positive array priority, no array_ufunc -> binops and iops only + check(make_obj(object, array_priority=1), True, False, True) + # ndarray ignores array_priority for ndarray subclasses + check(make_obj(np.ndarray, array_priority=1), False, False, False, + check_scalar=False) + # Positive array_priority and array_ufunc -> array_ufunc only + check(make_obj(object, array_priority=1, + array_ufunc=array_ufunc_impl), False, True, False) + check(make_obj(np.ndarray, array_priority=1, + array_ufunc=array_ufunc_impl), False, True, False) + # array_ufunc set to None -> defer binops only + check(make_obj(object, array_ufunc=None), True, False, False) + check(make_obj(np.ndarray, array_ufunc=None), True, False, False, + check_scalar=False) + + @pytest.mark.parametrize("priority", [None, "runtime error"]) + def test_ufunc_binop_bad_array_priority(self, priority): + # Mainly checks that this does not crash. The second array has a lower + # priority than -1 ("error value"). If the __radd__ actually exists, + # bad things can happen (I think via the scalar paths). + # In principle both of these can probably just be errors in the future. + class BadPriority: + @property + def __array_priority__(self): + if priority == "runtime error": + raise RuntimeError("RuntimeError in __array_priority__!") + return priority + + def __radd__(self, other): + return "result" + + class LowPriority(np.ndarray): + __array_priority__ = -1000 + + # Priority failure uses the same as scalars (smaller -1000). So the + # LowPriority wins with 'result' for each element (inner operation). + res = np.arange(3).view(LowPriority) + BadPriority() + assert res.shape == (3,) + assert res[0] == 'result' + + @pytest.mark.parametrize("scalar", [ + np.longdouble(1), np.timedelta64(120, 'm')]) + @pytest.mark.parametrize("op", [operator.add, operator.xor]) + def test_scalar_binop_guarantees_ufunc(self, scalar, op): + # Test that __array_ufunc__ will always cause ufunc use even when + # we have to protect some other calls from recursing (see gh-26904). + class SomeClass: + def __array_ufunc__(self, ufunc, method, *inputs, **kw): + return "result" + + assert SomeClass() + scalar == "result" + assert scalar + SomeClass() == "result" + + def test_ufunc_override_normalize_signature(self): + # gh-5674 + class SomeClass: + def __array_ufunc__(self, ufunc, method, *inputs, **kw): + return kw + + a = SomeClass() + kw = np.add(a, [1]) + assert_('sig' not in kw and 'signature' not in kw) + kw = np.add(a, [1], sig='ii->i') + assert_('sig' not in kw and 'signature' in kw) + assert_equal(kw['signature'], 'ii->i') + kw = np.add(a, [1], signature='ii->i') + assert_('sig' not in kw and 'signature' in kw) + assert_equal(kw['signature'], 'ii->i') + + def test_array_ufunc_index(self): + # Check that index is set appropriately, also if only an output + # is passed on (latter is another regression tests for github bug 4753) + # This also checks implicitly that 'out' is always a tuple. + class CheckIndex: + def __array_ufunc__(self, ufunc, method, *inputs, **kw): + for i, a in enumerate(inputs): + if a is self: + return i + # calls below mean we must be in an output. + for j, a in enumerate(kw['out']): + if a is self: + return (j,) + + a = CheckIndex() + dummy = np.arange(2.) + # 1 input, 1 output + assert_equal(np.sin(a), 0) + assert_equal(np.sin(dummy, a), (0,)) + assert_equal(np.sin(dummy, out=a), (0,)) + assert_equal(np.sin(dummy, out=(a,)), (0,)) + assert_equal(np.sin(a, a), 0) + assert_equal(np.sin(a, out=a), 0) + assert_equal(np.sin(a, out=(a,)), 0) + # 1 input, 2 outputs + assert_equal(np.modf(dummy, a), (0,)) + assert_equal(np.modf(dummy, None, a), (1,)) + assert_equal(np.modf(dummy, dummy, a), (1,)) + assert_equal(np.modf(dummy, out=(a, None)), (0,)) + assert_equal(np.modf(dummy, out=(a, dummy)), (0,)) + assert_equal(np.modf(dummy, out=(None, a)), (1,)) + assert_equal(np.modf(dummy, out=(dummy, a)), (1,)) + assert_equal(np.modf(a, out=(dummy, a)), 0) + with assert_raises(TypeError): + # Out argument must be tuple, since there are multiple outputs + np.modf(dummy, out=a) + + assert_raises(ValueError, np.modf, dummy, out=(a,)) + + # 2 inputs, 1 output + assert_equal(np.add(a, dummy), 0) + assert_equal(np.add(dummy, a), 1) + assert_equal(np.add(dummy, dummy, a), (0,)) + assert_equal(np.add(dummy, a, a), 1) + assert_equal(np.add(dummy, dummy, out=a), (0,)) + assert_equal(np.add(dummy, dummy, out=(a,)), (0,)) + assert_equal(np.add(a, dummy, out=a), 0) + + def test_out_override(self): + # regression test for github bug 4753 + class OutClass(np.ndarray): + def __array_ufunc__(self, ufunc, method, *inputs, **kw): + if 'out' in kw: + tmp_kw = kw.copy() + tmp_kw.pop('out') + func = getattr(ufunc, method) + kw['out'][0][...] = func(*inputs, **tmp_kw) + + A = np.array([0]).view(OutClass) + B = np.array([5]) + C = np.array([6]) + np.multiply(C, B, A) + assert_equal(A[0], 30) + assert_(isinstance(A, OutClass)) + A[0] = 0 + np.multiply(C, B, out=A) + assert_equal(A[0], 30) + assert_(isinstance(A, OutClass)) + + def test_pow_array_object_dtype(self): + # test pow on arrays of object dtype + class SomeClass: + def __init__(self, num=None): + self.num = num + + # want to ensure a fast pow path is not taken + def __mul__(self, other): + raise AssertionError('__mul__ should not be called') + + def __truediv__(self, other): + raise AssertionError('__truediv__ should not be called') + + def __pow__(self, exp): + return SomeClass(num=self.num ** exp) + + def __eq__(self, other): + if isinstance(other, SomeClass): + return self.num == other.num + + __rpow__ = __pow__ + + def pow_for(exp, arr): + return np.array([x ** exp for x in arr]) + + obj_arr = np.array([SomeClass(1), SomeClass(2), SomeClass(3)]) + + assert_equal(obj_arr ** 0.5, pow_for(0.5, obj_arr)) + assert_equal(obj_arr ** 0, pow_for(0, obj_arr)) + assert_equal(obj_arr ** 1, pow_for(1, obj_arr)) + assert_equal(obj_arr ** -1, pow_for(-1, obj_arr)) + assert_equal(obj_arr ** 2, pow_for(2, obj_arr)) + + def test_pow_calls_square_structured_dtype(self): + # gh-29388 + dt = np.dtype([('a', 'i4'), ('b', 'i4')]) + a = np.array([(1, 2), (3, 4)], dtype=dt) + with pytest.raises(TypeError, match="ufunc 'square' not supported"): + a ** 2 + + def test_pos_array_ufunc_override(self): + class A(np.ndarray): + def __array_ufunc__(self, ufunc, method, *inputs, **kwargs): + return getattr(ufunc, method)(*[i.view(np.ndarray) for + i in inputs], **kwargs) + tst = np.array('foo').view(A) + with assert_raises(TypeError): + +tst + + +class TestTemporaryElide: + # elision is only triggered on relatively large arrays + + def test_extension_incref_elide(self): + # test extension (e.g. cython) calling PyNumber_* slots without + # increasing the reference counts + # + # def incref_elide(a): + # d = input.copy() # refcount 1 + # return d, d + d # PyNumber_Add without increasing refcount + from numpy._core._multiarray_tests import incref_elide + d = np.ones(100000) + orig, res = incref_elide(d) + d + d + # the return original should not be changed to an inplace operation + assert_array_equal(orig, d) + assert_array_equal(res, d + d) + + def test_extension_incref_elide_stack(self): + # scanning if the refcount == 1 object is on the python stack to check + # that we are called directly from python is flawed as object may still + # be above the stack pointer and we have no access to the top of it + # + # def incref_elide_l(d): + # return l[4] + l[4] # PyNumber_Add without increasing refcount + from numpy._core._multiarray_tests import incref_elide_l + # padding with 1 makes sure the object on the stack is not overwritten + l = [1, 1, 1, 1, np.ones(100000)] + res = incref_elide_l(l) + # the return original should not be changed to an inplace operation + assert_array_equal(l[4], np.ones(100000)) + assert_array_equal(res, l[4] + l[4]) + + def test_temporary_with_cast(self): + # check that we don't elide into a temporary which would need casting + d = np.ones(200000, dtype=np.int64) + r = ((d + d) + np.array(2**222, dtype='O')) + assert_equal(r.dtype, np.dtype('O')) + + r = ((d + d) / 2) + assert_equal(r.dtype, np.dtype('f8')) + + r = np.true_divide((d + d), 2) + assert_equal(r.dtype, np.dtype('f8')) + + r = ((d + d) / 2.) + assert_equal(r.dtype, np.dtype('f8')) + + r = ((d + d) // 2) + assert_equal(r.dtype, np.dtype(np.int64)) + + # commutative elision into the astype result + f = np.ones(100000, dtype=np.float32) + assert_equal(((f + f) + f.astype(np.float64)).dtype, np.dtype('f8')) + + # no elision into lower type + d = f.astype(np.float64) + assert_equal(((f + f) + d).dtype, d.dtype) + l = np.ones(100000, dtype=np.longdouble) + assert_equal(((d + d) + l).dtype, l.dtype) + + # test unary abs with different output dtype + for dt in (np.complex64, np.complex128, np.clongdouble): + c = np.ones(100000, dtype=dt) + r = abs(c * 2.0) + assert_equal(r.dtype, np.dtype('f%d' % (c.itemsize // 2))) + + def test_elide_broadcast(self): + # test no elision on broadcast to higher dimension + # only triggers elision code path in debug mode as triggering it in + # normal mode needs 256kb large matching dimension, so a lot of memory + d = np.ones((2000, 1), dtype=int) + b = np.ones((2000), dtype=bool) + r = (1 - d) + b + assert_equal(r, 1) + assert_equal(r.shape, (2000, 2000)) + + def test_elide_scalar(self): + # check inplace op does not create ndarray from scalars + a = np.bool() + assert_(type(~(a & a)) is np.bool) + + def test_elide_scalar_readonly(self): + # The imaginary part of a real array is readonly. This needs to go + # through fast_scalar_power which is only called for powers of + # +1, -1, 0, 0.5, and 2, so use 2. Also need valid refcount for + # elision which can be gotten for the imaginary part of a real + # array. Should not error. + a = np.empty(100000, dtype=np.float64) + a.imag ** 2 + + def test_elide_readonly(self): + # don't try to elide readonly temporaries + r = np.asarray(np.broadcast_to(np.zeros(1), 100000).flat) * 0.0 + assert_equal(r, 0) + + def test_elide_updateifcopy(self): + a = np.ones(2**20)[::2] + b = a.flat.__array__() + 1 + del b + assert_equal(a, 1) + + +class TestCAPI: + def test_IsPythonScalar(self): + from numpy._core._multiarray_tests import IsPythonScalar + assert_(IsPythonScalar(b'foobar')) + assert_(IsPythonScalar(1)) + assert_(IsPythonScalar(2**80)) + assert_(IsPythonScalar(2.)) + assert_(IsPythonScalar("a")) + + @pytest.mark.parametrize("converter", + [_multiarray_tests.run_scalar_intp_converter, + _multiarray_tests.run_scalar_intp_from_sequence]) + def test_intp_sequence_converters(self, converter): + # Test simple values (-1 is special for error return paths) + assert converter(10) == (10,) + assert converter(-1) == (-1,) + # A 0-D array looks a bit like a sequence but must take the integer + # path: + assert converter(np.array(123)) == (123,) + # Test simple sequences (intp_from_sequence only supports length 1): + assert converter((10,)) == (10,) + assert converter(np.array([11])) == (11,) + + @pytest.mark.parametrize("converter", + [_multiarray_tests.run_scalar_intp_converter, + _multiarray_tests.run_scalar_intp_from_sequence]) + @pytest.mark.skipif(IS_PYPY and sys.implementation.version <= (7, 3, 8), + reason="PyPy bug in error formatting") + def test_intp_sequence_converters_errors(self, converter): + with pytest.raises(TypeError, + match="expected a sequence of integers or a single integer, "): + converter(object()) + with pytest.raises(TypeError, + match="expected a sequence of integers or a single integer, " + "got '32.0'"): + converter(32.) + with pytest.raises(TypeError, + match="'float' object cannot be interpreted as an integer"): + converter([32.]) + with pytest.raises(ValueError, + match="Maximum allowed dimension"): + # These converters currently convert overflows to a ValueError + converter(2**64) + + @pytest.mark.parametrize( + "entry_point", + [ + module + item + for item in ("sin", "strings.str_len", "fft._pocketfft_umath.ifft") + for module in ("", "numpy:") + ] + [ + "numpy.strings:str_len", + "functools:reduce", + "functools:reduce.__doc__" + ] + ) + def test_import_entry_point(self, entry_point): + modname, _, items = entry_point.rpartition(":") + if modname: + module = obj = importlib.import_module(modname) + else: + module = np + exp = functools.reduce(getattr, items.split("."), module) + got = _multiarray_tests.npy_import_entry_point(entry_point) + assert got == exp + + @pytest.mark.parametrize( + "entry_point", + ["sin.", "numpy:", "numpy:sin:__call__", "numpy.sin:__call__."] + ) + def test_import_entry_point_errors(self, entry_point): + # Don't really care about precise error. + with pytest.raises((ImportError, AttributeError)): + _multiarray_tests.npy_import_entry_point(entry_point) + + +class TestSubscripting: + def test_test_zero_rank(self): + x = np.array([1, 2, 3]) + assert_(isinstance(x[0], np.int_)) + assert_(type(x[0, ...]) is np.ndarray) + + +class TestPickling: + @pytest.mark.skipif(pickle.HIGHEST_PROTOCOL >= 5, + reason=('this tests the error messages when trying to' + 'protocol 5 although it is not available')) + def test_correct_protocol5_error_message(self): + array = np.arange(10) + + def test_record_array_with_object_dtype(self): + my_object = object() + + arr_with_object = np.array( + [(my_object, 1, 2.0)], + dtype=[('a', object), ('b', int), ('c', float)]) + arr_without_object = np.array( + [('xxx', 1, 2.0)], + dtype=[('a', str), ('b', int), ('c', float)]) + + for proto in range(2, pickle.HIGHEST_PROTOCOL + 1): + depickled_arr_with_object = pickle.loads( + pickle.dumps(arr_with_object, protocol=proto)) + depickled_arr_without_object = pickle.loads( + pickle.dumps(arr_without_object, protocol=proto)) + + assert_equal(arr_with_object.dtype, + depickled_arr_with_object.dtype) + assert_equal(arr_without_object.dtype, + depickled_arr_without_object.dtype) + + @pytest.mark.skipif(pickle.HIGHEST_PROTOCOL < 5, + reason="requires pickle protocol 5") + def test_f_contiguous_array(self): + f_contiguous_array = np.array([[1, 2, 3], [4, 5, 6]], order='F') + buffers = [] + + # When using pickle protocol 5, Fortran-contiguous arrays can be + # serialized using out-of-band buffers + bytes_string = pickle.dumps(f_contiguous_array, protocol=5, + buffer_callback=buffers.append) + + assert len(buffers) > 0 + + depickled_f_contiguous_array = pickle.loads(bytes_string, + buffers=buffers) + + assert_equal(f_contiguous_array, depickled_f_contiguous_array) + + @pytest.mark.skipif(pickle.HIGHEST_PROTOCOL < 5, reason="requires pickle protocol 5") + @pytest.mark.parametrize('transposed_contiguous_array', + [np.random.default_rng(42).random((2, 3, 4)).transpose((1, 0, 2)), + np.random.default_rng(42).random((2, 3, 4, 5)).transpose((1, 3, 0, 2))] + + [np.random.default_rng(42).random(np.arange(2, 7)).transpose(np.random.permutation(5)) for _ in range(3)]) + def test_transposed_contiguous_array(self, transposed_contiguous_array): + buffers = [] + # When using pickle protocol 5, arrays which can be transposed to c_contiguous + # can be serialized using out-of-band buffers + bytes_string = pickle.dumps(transposed_contiguous_array, protocol=5, + buffer_callback=buffers.append) + + assert len(buffers) > 0 + + depickled_transposed_contiguous_array = pickle.loads(bytes_string, + buffers=buffers) + + assert_equal(transposed_contiguous_array, depickled_transposed_contiguous_array) + + @pytest.mark.skipif(pickle.HIGHEST_PROTOCOL < 5, reason="requires pickle protocol 5") + def test_load_legacy_pkl_protocol5(self): + # legacy byte strs are dumped in 2.2.1 + c_contiguous_dumped = b'\x80\x05\x95\x90\x00\x00\x00\x00\x00\x00\x00\x8c\x13numpy._core.numeric\x94\x8c\x0b_frombuffer\x94\x93\x94(\x96\x18\x00\x00\x00\x00\x00\x00\x00\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x94\x8c\x05numpy\x94\x8c\x05dtype\x94\x93\x94\x8c\x02u1\x94\x89\x88\x87\x94R\x94(K\x03\x8c\x01|\x94NNNJ\xff\xff\xff\xffJ\xff\xff\xff\xffK\x00t\x94bK\x03K\x04K\x02\x87\x94\x8c\x01C\x94t\x94R\x94.' # noqa: E501 + f_contiguous_dumped = b'\x80\x05\x95\x90\x00\x00\x00\x00\x00\x00\x00\x8c\x13numpy._core.numeric\x94\x8c\x0b_frombuffer\x94\x93\x94(\x96\x18\x00\x00\x00\x00\x00\x00\x00\x00\x01\x02\x03\x04\x05\x06\x07\x08\t\n\x0b\x0c\r\x0e\x0f\x10\x11\x12\x13\x14\x15\x16\x17\x94\x8c\x05numpy\x94\x8c\x05dtype\x94\x93\x94\x8c\x02u1\x94\x89\x88\x87\x94R\x94(K\x03\x8c\x01|\x94NNNJ\xff\xff\xff\xffJ\xff\xff\xff\xffK\x00t\x94bK\x03K\x04K\x02\x87\x94\x8c\x01F\x94t\x94R\x94.' # noqa: E501 + transposed_contiguous_dumped = b'\x80\x05\x95\xa5\x00\x00\x00\x00\x00\x00\x00\x8c\x16numpy._core.multiarray\x94\x8c\x0c_reconstruct\x94\x93\x94\x8c\x05numpy\x94\x8c\x07ndarray\x94\x93\x94K\x00\x85\x94C\x01b\x94\x87\x94R\x94(K\x01K\x04K\x03K\x02\x87\x94h\x03\x8c\x05dtype\x94\x93\x94\x8c\x02u1\x94\x89\x88\x87\x94R\x94(K\x03\x8c\x01|\x94NNNJ\xff\xff\xff\xffJ\xff\xff\xff\xffK\x00t\x94b\x89C\x18\x00\x01\x08\t\x10\x11\x02\x03\n\x0b\x12\x13\x04\x05\x0c\r\x14\x15\x06\x07\x0e\x0f\x16\x17\x94t\x94b.' # noqa: E501 + no_contiguous_dumped = b'\x80\x05\x95\x91\x00\x00\x00\x00\x00\x00\x00\x8c\x16numpy._core.multiarray\x94\x8c\x0c_reconstruct\x94\x93\x94\x8c\x05numpy\x94\x8c\x07ndarray\x94\x93\x94K\x00\x85\x94C\x01b\x94\x87\x94R\x94(K\x01K\x03K\x02\x86\x94h\x03\x8c\x05dtype\x94\x93\x94\x8c\x02u1\x94\x89\x88\x87\x94R\x94(K\x03\x8c\x01|\x94NNNJ\xff\xff\xff\xffJ\xff\xff\xff\xffK\x00t\x94b\x89C\x06\x00\x01\x04\x05\x08\t\x94t\x94b.' # noqa: E501 + x = np.arange(24, dtype='uint8').reshape(3, 4, 2) + assert_equal(x, pickle.loads(c_contiguous_dumped)) + x = np.arange(24, dtype='uint8').reshape(3, 4, 2, order='F') + assert_equal(x, pickle.loads(f_contiguous_dumped)) + x = np.arange(24, dtype='uint8').reshape(3, 4, 2).transpose((1, 0, 2)) + assert_equal(x, pickle.loads(transposed_contiguous_dumped)) + x = np.arange(12, dtype='uint8').reshape(3, 4)[:, :2] + assert_equal(x, pickle.loads(no_contiguous_dumped)) + + def test_non_contiguous_array(self): + non_contiguous_array = np.arange(12).reshape(3, 4)[:, :2] + assert not non_contiguous_array.flags.c_contiguous + assert not non_contiguous_array.flags.f_contiguous + + # make sure non-contiguous arrays can be pickled-depickled + # using any protocol + buffers = [] + for proto in range(2, pickle.HIGHEST_PROTOCOL + 1): + depickled_non_contiguous_array = pickle.loads( + pickle.dumps(non_contiguous_array, protocol=proto, + buffer_callback=buffers.append if proto >= 5 else None)) + + assert_equal(len(buffers), 0) + assert_equal(non_contiguous_array, depickled_non_contiguous_array) + + @pytest.mark.thread_unsafe(reason="calls gc.collect()") + def test_roundtrip(self): + for proto in range(2, pickle.HIGHEST_PROTOCOL + 1): + carray = np.array([[2, 9], [7, 0], [3, 8]]) + DATA = [ + carray, + np.transpose(carray), + np.array([('xxx', 1, 2.0)], dtype=[('a', (str, 3)), ('b', int), + ('c', float)]) + ] + + refs = [weakref.ref(a) for a in DATA] + for a in DATA: + assert_equal( + a, pickle.loads(pickle.dumps(a, protocol=proto)), + err_msg=f"{a!r}") + del a, DATA, carray + break_cycles() + # check for reference leaks (gh-12793) + for ref in refs: + assert ref() is None + + def _loads(self, obj): + return pickle.loads(obj, encoding='latin1') + + # version 0 pickles, using protocol=2 to pickle + # version 0 doesn't have a version field + @pytest.mark.filterwarnings( + "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning") + def test_version0_int8(self): + s = b"\x80\x02cnumpy.core._internal\n_reconstruct\nq\x01cnumpy\nndarray\nq\x02K\x00\x85U\x01b\x87Rq\x03(K\x04\x85cnumpy\ndtype\nq\x04U\x02i1K\x00K\x01\x87Rq\x05(U\x01|NNJ\xff\xff\xff\xffJ\xff\xff\xff\xfftb\x89U\x04\x01\x02\x03\x04tb." + a = np.array([1, 2, 3, 4], dtype=np.int8) + p = self._loads(s) + assert_equal(a, p) + + @pytest.mark.filterwarnings( + "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning") + def test_version0_float32(self): + s = b"\x80\x02cnumpy.core._internal\n_reconstruct\nq\x01cnumpy\nndarray\nq\x02K\x00\x85U\x01b\x87Rq\x03(K\x04\x85cnumpy\ndtype\nq\x04U\x02f4K\x00K\x01\x87Rq\x05(U\x01= g2, [g1[i] >= g2[i] for i in [0, 1, 2]]) + assert_array_equal(g1 < g2, [g1[i] < g2[i] for i in [0, 1, 2]]) + assert_array_equal(g1 > g2, [g1[i] > g2[i] for i in [0, 1, 2]]) + + def test_mixed(self): + g1 = np.array(["spam", "spa", "spammer", "and eggs"]) + g2 = "spam" + assert_array_equal(g1 == g2, [x == g2 for x in g1]) + assert_array_equal(g1 != g2, [x != g2 for x in g1]) + assert_array_equal(g1 < g2, [x < g2 for x in g1]) + assert_array_equal(g1 > g2, [x > g2 for x in g1]) + assert_array_equal(g1 <= g2, [x <= g2 for x in g1]) + assert_array_equal(g1 >= g2, [x >= g2 for x in g1]) + + def test_unicode(self): + g1 = np.array(["This", "is", "example"]) + g2 = np.array(["This", "was", "example"]) + assert_array_equal(g1 == g2, [g1[i] == g2[i] for i in [0, 1, 2]]) + assert_array_equal(g1 != g2, [g1[i] != g2[i] for i in [0, 1, 2]]) + assert_array_equal(g1 <= g2, [g1[i] <= g2[i] for i in [0, 1, 2]]) + assert_array_equal(g1 >= g2, [g1[i] >= g2[i] for i in [0, 1, 2]]) + assert_array_equal(g1 < g2, [g1[i] < g2[i] for i in [0, 1, 2]]) + assert_array_equal(g1 > g2, [g1[i] > g2[i] for i in [0, 1, 2]]) + +class TestArgmaxArgminCommon: + + sizes = [(), (3,), (3, 2), (2, 3), + (3, 3), (2, 3, 4), (4, 3, 2), + (1, 2, 3, 4), (2, 3, 4, 1), + (3, 4, 1, 2), (4, 1, 2, 3), + (64,), (128,), (256,)] + + @pytest.mark.parametrize("size, axis", itertools.chain(*[[(size, axis) + for axis in list(range(-len(size), len(size))) + [None]] + for size in sizes])) + @pytest.mark.parametrize('method', [np.argmax, np.argmin]) + def test_np_argmin_argmax_keepdims(self, size, axis, method): + + arr = np.random.normal(size=size) + + # contiguous arrays + if axis is None: + new_shape = [1 for _ in range(len(size))] + else: + new_shape = list(size) + new_shape[axis] = 1 + new_shape = tuple(new_shape) + + _res_orig = method(arr, axis=axis) + res_orig = _res_orig.reshape(new_shape) + res = method(arr, axis=axis, keepdims=True) + assert_equal(res, res_orig) + assert_(res.shape == new_shape) + outarray = np.empty(res.shape, dtype=res.dtype) + res1 = method(arr, axis=axis, out=outarray, + keepdims=True) + assert_(res1 is outarray) + assert_equal(res, outarray) + + if len(size) > 0: + wrong_shape = list(new_shape) + if axis is not None: + wrong_shape[axis] = 2 + else: + wrong_shape[0] = 2 + wrong_outarray = np.empty(wrong_shape, dtype=res.dtype) + with pytest.raises(ValueError): + method(arr.T, axis=axis, + out=wrong_outarray, keepdims=True) + + # non-contiguous arrays + if axis is None: + new_shape = [1 for _ in range(len(size))] + else: + new_shape = list(size)[::-1] + new_shape[axis] = 1 + new_shape = tuple(new_shape) + + _res_orig = method(arr.T, axis=axis) + res_orig = _res_orig.reshape(new_shape) + res = method(arr.T, axis=axis, keepdims=True) + assert_equal(res, res_orig) + assert_(res.shape == new_shape) + outarray = np.empty(new_shape[::-1], dtype=res.dtype) + outarray = outarray.T + res1 = method(arr.T, axis=axis, out=outarray, + keepdims=True) + assert_(res1 is outarray) + assert_equal(res, outarray) + + if len(size) > 0: + # one dimension lesser for non-zero sized + # array should raise an error + with pytest.raises(ValueError): + method(arr[0], axis=axis, + out=outarray, keepdims=True) + + if len(size) > 0: + wrong_shape = list(new_shape) + if axis is not None: + wrong_shape[axis] = 2 + else: + wrong_shape[0] = 2 + wrong_outarray = np.empty(wrong_shape, dtype=res.dtype) + with pytest.raises(ValueError): + method(arr.T, axis=axis, + out=wrong_outarray, keepdims=True) + + @pytest.mark.parametrize('method', ['max', 'min']) + def test_all(self, method): + a = np.random.normal(0, 1, (4, 5, 6, 7, 8)) + arg_method = getattr(a, 'arg' + method) + val_method = getattr(a, method) + for i in range(a.ndim): + a_maxmin = val_method(i) + aarg_maxmin = arg_method(i) + axes = list(range(a.ndim)) + axes.remove(i) + assert_(np.all(a_maxmin == aarg_maxmin.choose( + *a.transpose(i, *axes)))) + + @pytest.mark.parametrize('method', ['argmax', 'argmin']) + def test_output_shape(self, method): + # see also gh-616 + a = np.ones((10, 5)) + arg_method = getattr(a, method) + # Check some simple shape mismatches + out = np.ones(11, dtype=np.int_) + assert_raises(ValueError, arg_method, -1, out) + + out = np.ones((2, 5), dtype=np.int_) + assert_raises(ValueError, arg_method, -1, out) + + # these could be relaxed possibly (used to allow even the previous) + out = np.ones((1, 10), dtype=np.int_) + assert_raises(ValueError, arg_method, -1, out) + + out = np.ones(10, dtype=np.int_) + arg_method(-1, out=out) + assert_equal(out, arg_method(-1)) + + @pytest.mark.parametrize('ndim', [0, 1]) + @pytest.mark.parametrize('method', ['argmax', 'argmin']) + def test_ret_is_out(self, ndim, method): + a = np.ones((4,) + (256,) * ndim) + arg_method = getattr(a, method) + out = np.empty((256,) * ndim, dtype=np.intp) + ret = arg_method(axis=0, out=out) + assert ret is out + + @pytest.mark.parametrize('np_array, method, idx, val', + [(np.zeros, 'argmax', 5942, "as"), + (np.ones, 'argmin', 6001, "0")]) + def test_unicode(self, np_array, method, idx, val): + d = np_array(6031, dtype='= cmin)) + assert_(np.all(x <= cmax)) + + def _clip_type(self, type_group, array_max, + clip_min, clip_max, inplace=False, + expected_min=None, expected_max=None): + if expected_min is None: + expected_min = clip_min + if expected_max is None: + expected_max = clip_max + + for T in np._core.sctypes[type_group]: + if sys.byteorder == 'little': + byte_orders = ['=', '>'] + else: + byte_orders = ['<', '='] + + for byteorder in byte_orders: + dtype = np.dtype(T).newbyteorder(byteorder) + + x = (np.random.random(1000) * array_max).astype(dtype) + if inplace: + # The tests that call us pass clip_min and clip_max that + # might not fit in the destination dtype. They were written + # assuming the previous unsafe casting, which now must be + # passed explicitly to avoid a warning. + x.clip(clip_min, clip_max, x, casting='unsafe') + else: + x = x.clip(clip_min, clip_max) + byteorder = '=' + + if x.dtype.byteorder == '|': + byteorder = '|' + assert_equal(x.dtype.byteorder, byteorder) + self._check_range(x, expected_min, expected_max) + return x + + def test_basic(self): + for inplace in [False, True]: + self._clip_type( + 'float', 1024, -12.8, 100.2, inplace=inplace) + self._clip_type( + 'float', 1024, 0, 0, inplace=inplace) + + self._clip_type( + 'int', 1024, -120, 100, inplace=inplace) + self._clip_type( + 'int', 1024, 0, 0, inplace=inplace) + + self._clip_type( + 'uint', 1024, 0, 0, inplace=inplace) + self._clip_type( + 'uint', 1024, 10, 100, inplace=inplace) + + @pytest.mark.parametrize("inplace", [False, True]) + def test_int_out_of_range(self, inplace): + # Simple check for out-of-bound integers, also testing the in-place + # path. + x = (np.random.random(1000) * 255).astype("uint8") + out = np.empty_like(x) + res = x.clip(-1, 300, out=out if inplace else None) + assert res is out or not inplace + assert (res == x).all() + + res = x.clip(-1, 50, out=out if inplace else None) + assert res is out or not inplace + assert (res <= 50).all() + assert (res[x <= 50] == x[x <= 50]).all() + + res = x.clip(100, 1000, out=out if inplace else None) + assert res is out or not inplace + assert (res >= 100).all() + assert (res[x >= 100] == x[x >= 100]).all() + + def test_record_array(self): + rec = np.array([(-5, 2.0, 3.0), (5.0, 4.0, 3.0)], + dtype=[('x', '= 3)) + x = val.clip(min=3) + assert_(np.all(x >= 3)) + x = val.clip(max=4) + assert_(np.all(x <= 4)) + + def test_nan(self): + input_arr = np.array([-2., np.nan, 0.5, 3., 0.25, np.nan]) + result = input_arr.clip(-1, 1) + expected = np.array([-1., np.nan, 0.5, 1., 0.25, np.nan]) + assert_array_equal(result, expected) + + +class TestCompress: + def test_axis(self): + tgt = [[5, 6, 7, 8, 9]] + arr = np.arange(10).reshape(2, 5) + out = np.compress([0, 1], arr, axis=0) + assert_equal(out, tgt) + + tgt = [[1, 3], [6, 8]] + out = np.compress([0, 1, 0, 1, 0], arr, axis=1) + assert_equal(out, tgt) + + def test_truncate(self): + tgt = [[1], [6]] + arr = np.arange(10).reshape(2, 5) + out = np.compress([0, 1], arr, axis=1) + assert_equal(out, tgt) + + def test_flatten(self): + arr = np.arange(10).reshape(2, 5) + out = np.compress([0, 1], arr) + assert_equal(out, 1) + + +class TestPutmask: + def tst_basic(self, x, T, mask, val): + np.putmask(x, mask, val) + assert_equal(x[mask], np.array(val, T)) + + def test_ip_types(self): + unchecked_types = [bytes, str, np.void] + + x = np.random.random(1000) * 100 + mask = x < 40 + + for val in [-100, 0, 15]: + for types in np._core.sctypes.values(): + for T in types: + if T not in unchecked_types: + if val < 0 and np.dtype(T).kind == "u": + val = np.iinfo(T).max - 99 + self.tst_basic(x.copy().astype(T), T, mask, val) + + # Also test string of a length which uses an untypical length + dt = np.dtype("S3") + self.tst_basic(x.astype(dt), dt.type, mask, dt.type(val)[:3]) + + def test_mask_size(self): + assert_raises(ValueError, np.putmask, np.array([1, 2, 3]), [True], 5) + + @pytest.mark.parametrize('dtype', ('>i4', 'f8'), ('z', '= 2, 3) + + def test_kwargs(self): + x = np.array([0, 0]) + np.putmask(x, [0, 1], [-1, -2]) + assert_array_equal(x, [0, -2]) + + x = np.array([0, 0]) + np.putmask(x, mask=[0, 1], values=[-1, -2]) + assert_array_equal(x, [0, -2]) + + x = np.array([0, 0]) + np.putmask(x, values=[-1, -2], mask=[0, 1]) + assert_array_equal(x, [0, -2]) + + with pytest.raises(TypeError): + np.putmask(a=x, values=[-1, -2], mask=[0, 1]) + + +class TestTake: + def tst_basic(self, x): + ind = list(range(x.shape[0])) + assert_array_equal(x.take(ind, axis=0), x) + + def test_ip_types(self): + unchecked_types = [bytes, str, np.void] + + x = np.random.random(24) * 100 + x = x.reshape((2, 3, 4)) + for types in np._core.sctypes.values(): + for T in types: + if T not in unchecked_types: + self.tst_basic(x.copy().astype(T)) + + # Also test string of a length which uses an untypical length + self.tst_basic(x.astype("S3")) + + def test_raise(self): + x = np.random.random(24) * 100 + x = x.reshape((2, 3, 4)) + assert_raises(IndexError, x.take, [0, 1, 2], axis=0) + assert_raises(IndexError, x.take, [-3], axis=0) + assert_array_equal(x.take([-1], axis=0)[0], x[1]) + + def test_clip(self): + x = np.random.random(24) * 100 + x = x.reshape((2, 3, 4)) + assert_array_equal(x.take([-1], axis=0, mode='clip')[0], x[0]) + assert_array_equal(x.take([2], axis=0, mode='clip')[0], x[1]) + + def test_wrap(self): + x = np.random.random(24) * 100 + x = x.reshape((2, 3, 4)) + assert_array_equal(x.take([-1], axis=0, mode='wrap')[0], x[1]) + assert_array_equal(x.take([2], axis=0, mode='wrap')[0], x[0]) + assert_array_equal(x.take([3], axis=0, mode='wrap')[0], x[1]) + + @pytest.mark.parametrize('dtype', ('>i4', 'f8'), ('z', ' 16MB + tmp_filename = normalize_filename(tmp_path, param_filename) + d = np.zeros(4 * 1024 ** 2) + d.tofile(tmp_filename) + assert_equal(os.path.getsize(tmp_filename), d.nbytes) + assert_array_equal(d, np.fromfile(tmp_filename)) + # check offset + with open(tmp_filename, "r+b") as f: + f.seek(d.nbytes) + d.tofile(f) + assert_equal(os.path.getsize(tmp_filename), d.nbytes * 2) + # check append mode (gh-8329) + open(tmp_filename, "w").close() # delete file contents + with open(tmp_filename, "ab") as f: + d.tofile(f) + assert_array_equal(d, np.fromfile(tmp_filename)) + with open(tmp_filename, "ab") as f: + d.tofile(f) + assert_equal(os.path.getsize(tmp_filename), d.nbytes * 2) + + def test_io_open_buffered_fromfile(self, tmp_path, param_filename): + # gh-6632 + tmp_filename = normalize_filename(tmp_path, param_filename) + x = self._create_data() + x.tofile(tmp_filename) + with open(tmp_filename, 'rb', buffering=-1) as f: + y = np.fromfile(f, dtype=x.dtype) + assert_array_equal(y, x.flat) + + def test_file_position_after_fromfile(self, tmp_path, param_filename): + # gh-4118 + sizes = [io.DEFAULT_BUFFER_SIZE // 8, + io.DEFAULT_BUFFER_SIZE, + io.DEFAULT_BUFFER_SIZE * 8] + tmp_filename = normalize_filename(tmp_path, param_filename) + + for size in sizes: + with open(tmp_filename, 'wb') as f: + f.seek(size - 1) + f.write(b'\0') + + for mode in ['rb', 'r+b']: + err_msg = "%d %s" % (size, mode) + + with open(tmp_filename, mode) as f: + f.read(2) + np.fromfile(f, dtype=np.float64, count=1) + pos = f.tell() + assert_equal(pos, 10, err_msg=err_msg) + + def test_file_position_after_tofile(self, tmp_path, param_filename): + # gh-4118 + sizes = [io.DEFAULT_BUFFER_SIZE // 8, + io.DEFAULT_BUFFER_SIZE, + io.DEFAULT_BUFFER_SIZE * 8] + tmp_filename = normalize_filename(tmp_path, param_filename) + + for size in sizes: + err_msg = "%d" % (size,) + + with open(tmp_filename, 'wb') as f: + f.seek(size - 1) + f.write(b'\0') + f.seek(10) + f.write(b'12') + np.array([0], dtype=np.float64).tofile(f) + pos = f.tell() + assert_equal(pos, 10 + 2 + 8, err_msg=err_msg) + + with open(tmp_filename, 'r+b') as f: + f.read(2) + f.seek(0, 1) # seek between read&write required by ANSI C + np.array([0], dtype=np.float64).tofile(f) + pos = f.tell() + assert_equal(pos, 10, err_msg=err_msg) + + def test_load_object_array_fromfile(self, tmp_path, param_filename): + # gh-12300 + tmp_filename = normalize_filename(tmp_path, param_filename) + with open(tmp_filename, 'w') as f: + # Ensure we have a file with consistent contents + pass + + with open(tmp_filename, 'rb') as f: + assert_raises_regex(ValueError, "Cannot read into object array", + np.fromfile, f, dtype=object) + + assert_raises_regex(ValueError, "Cannot read into object array", + np.fromfile, tmp_filename, dtype=object) + + def test_fromfile_offset(self, tmp_path, param_filename): + tmp_filename = normalize_filename(tmp_path, param_filename) + x = self._create_data() + with open(tmp_filename, 'wb') as f: + x.tofile(f) + + with open(tmp_filename, 'rb') as f: + y = np.fromfile(f, dtype=x.dtype, offset=0) + assert_array_equal(y, x.flat) + + with open(tmp_filename, 'rb') as f: + count_items = len(x.flat) // 8 + offset_items = len(x.flat) // 4 + offset_bytes = x.dtype.itemsize * offset_items + y = np.fromfile( + f, dtype=x.dtype, count=count_items, offset=offset_bytes + ) + assert_array_equal( + y, x.flat[offset_items:offset_items + count_items] + ) + + # subsequent seeks should stack + offset_bytes = x.dtype.itemsize + z = np.fromfile(f, dtype=x.dtype, offset=offset_bytes) + assert_array_equal(z, x.flat[offset_items + count_items + 1:]) + + with open(tmp_filename, 'wb') as f: + x.tofile(f, sep=",") + + with open(tmp_filename, 'rb') as f: + assert_raises_regex( + TypeError, + "'offset' argument only permitted for binary files", + np.fromfile, tmp_filename, dtype=x.dtype, + sep=",", offset=1) + + @pytest.mark.skipif(IS_PYPY, reason="bug in PyPy's PyNumber_AsSsize_t") + def test_fromfile_bad_dup(self, tmp_path, param_filename, monkeypatch): + def dup_str(fd): + return 'abc' + + def dup_bigint(fd): + return 2**68 + + tmp_filename = normalize_filename(tmp_path, param_filename) + x = self._create_data() + + with open(tmp_filename, 'wb') as f: + x.tofile(f) + for dup, exc in ((dup_str, TypeError), (dup_bigint, OSError)): + monkeypatch.setattr(os, "dup", dup) + assert_raises(exc, np.fromfile, f) + + def _check_from(self, s, value, filename, **kw): + if 'sep' not in kw: + y = np.frombuffer(s, **kw) + else: + y = np.fromstring(s, **kw) + assert_array_equal(y, value) + + with open(filename, 'wb') as f: + f.write(s) + y = np.fromfile(filename, **kw) + assert_array_equal(y, value) + + @pytest.fixture(params=["period", "comma"]) + def decimal_sep_localization(self, request): + """ + Including this fixture in a test will automatically + execute it with both types of decimal separator. + + So:: + + def test_decimal(decimal_sep_localization): + pass + + is equivalent to the following two tests:: + + def test_decimal_period_separator(): + pass + + def test_decimal_comma_separator(): + with CommaDecimalPointLocale(): + pass + """ + if request.param == "period": + yield + elif request.param == "comma": + with CommaDecimalPointLocale(): + yield + else: + assert False, request.param + + def test_nan(self, tmp_path, param_filename, decimal_sep_localization): + tmp_filename = normalize_filename(tmp_path, param_filename) + self._check_from( + b"nan +nan -nan NaN nan(foo) +NaN(BAR) -NAN(q_u_u_x_)", + [np.nan, np.nan, np.nan, np.nan, np.nan, np.nan, np.nan], + tmp_filename, + sep=' ') + + def test_inf(self, tmp_path, param_filename, decimal_sep_localization): + tmp_filename = normalize_filename(tmp_path, param_filename) + self._check_from( + b"inf +inf -inf infinity -Infinity iNfInItY -inF", + [np.inf, np.inf, -np.inf, np.inf, -np.inf, np.inf, -np.inf], + tmp_filename, + sep=' ') + + def test_numbers(self, tmp_path, param_filename, decimal_sep_localization): + tmp_filename = normalize_filename(tmp_path, param_filename) + self._check_from( + b"1.234 -1.234 .3 .3e55 -123133.1231e+133", + [1.234, -1.234, .3, .3e55, -123133.1231e+133], + tmp_filename, + sep=' ') + + def test_binary(self, tmp_path, param_filename): + tmp_filename = normalize_filename(tmp_path, param_filename) + self._check_from( + b'\x00\x00\x80?\x00\x00\x00@\x00\x00@@\x00\x00\x80@', + np.array([1, 2, 3, 4]), + tmp_filename, + dtype='']) + @pytest.mark.parametrize('dtype', [float, int, complex]) + def test_basic(self, byteorder, dtype): + dt = np.dtype(dtype).newbyteorder(byteorder) + x = (np.random.random((4, 7)) * 5).astype(dt) + buf = x.tobytes() + assert_array_equal(np.frombuffer(buf, dtype=dt), x.flat) + + @pytest.mark.parametrize("obj", [np.arange(10), b"12345678"]) + def test_array_base(self, obj): + # Objects (including NumPy arrays), which do not use the + # `release_buffer` slot should be directly used as a base object. + # See also gh-21612 + new = np.frombuffer(obj) + assert new.base is obj + + def test_empty(self): + assert_array_equal(np.frombuffer(b''), np.array([])) + + @pytest.mark.skipif(IS_PYPY, + reason="PyPy's memoryview currently does not track exports. See: " + "https://foss.heptapod.net/pypy/pypy/-/issues/3724") + def test_mmap_close(self): + # The old buffer protocol was not safe for some things that the new + # one is. But `frombuffer` always used the old one for a long time. + # Checks that it is safe with the new one (using memoryviews) + with tempfile.TemporaryFile(mode='wb') as tmp: + tmp.write(b"asdf") + tmp.flush() + mm = mmap.mmap(tmp.fileno(), 0) + arr = np.frombuffer(mm, dtype=np.uint8) + with pytest.raises(BufferError): + mm.close() # cannot close while array uses the buffer + del arr + mm.close() + +class TestFlat: + def _create_arrays(self): + a = np.arange(20.0).reshape(4, 5) + a.flags.writeable = False + b = a[::2, ::2] + return a, b + + def test_contiguous(self): + testpassed = False + a, _ = self._create_arrays() + try: + a.flat[12] = 100.0 + except ValueError: + testpassed = True + assert_(testpassed) + assert_(a.flat[12] == 12.0) + + def test_discontiguous(self): + testpassed = False + _, b = self._create_arrays() + try: + b.flat[4] = 100.0 + except ValueError: + testpassed = True + assert_(testpassed) + assert_(b.flat[4] == 12.0) + + def test___array__(self): + a0 = np.arange(20.0) + a = a0.reshape(4, 5) + a0 = a0.reshape((4, 5)) + a.flags.writeable = False + b = a[::2, ::2] + b0 = a0[::2, ::2] + c = a.flat.__array__() + d = b.flat.__array__() + e = a0.flat.__array__() + f = b0.flat.__array__() + + assert_(c.flags.writeable is False) + assert_(d.flags.writeable is False) + assert_(e.flags.writeable is True) + assert_(f.flags.writeable is False) + assert_(c.flags.writebackifcopy is False) + assert_(d.flags.writebackifcopy is False) + assert_(e.flags.writebackifcopy is False) + assert_(f.flags.writebackifcopy is False) + + @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") + def test_refcount(self): + # includes regression test for reference count error gh-13165 + a, _ = self._create_arrays() + inds = [np.intp(0), np.array([True] * a.size), np.array([0]), None] + indtype = np.dtype(np.intp) + rc_indtype = sys.getrefcount(indtype) + for ind in inds: + rc_ind = sys.getrefcount(ind) + for _ in range(100): + try: + a.flat[ind] + except IndexError: + pass + assert_(abs(sys.getrefcount(ind) - rc_ind) < 50) + assert_(abs(sys.getrefcount(indtype) - rc_indtype) < 50) + + def test_index_getset(self): + it = np.arange(10).reshape(2, 1, 5).flat + with pytest.raises(AttributeError): + it.index = 10 + + for _ in it: + pass + # Check the value of `.index` is updated correctly (see also gh-19153) + # If the type was incorrect, this would show up on big-endian machines + assert it.index == it.base.size + + def test_maxdims(self): + # The flat iterator and thus attribute is currently unfortunately + # limited to only 32 dimensions (after bumping it to 64 for 2.0) + a = np.ones((1,) * 64) + + with pytest.raises(RuntimeError, + match=".*32 dimensions but the array has 64"): + a.flat + + +class TestResize: + + @_no_tracing + def test_basic(self): + x = np.array([[1, 0, 0], [0, 1, 0], [0, 0, 1]]) + if IS_PYPY: + x.resize((5, 5), refcheck=False) + else: + x.resize((5, 5)) + assert_array_equal(x.flat[:9], + np.array([[1, 0, 0], [0, 1, 0], [0, 0, 1]]).flat) + assert_array_equal(x[9:].flat, 0) + + def test_check_reference(self): + x = np.array([[1, 0, 0], [0, 1, 0], [0, 0, 1]]) + y = x + assert_raises(ValueError, x.resize, (5, 1)) + + @pytest.mark.skipif(IS_WASM, reason="Cannot start subprocess") + @pytest.mark.skipif(IS_PYPY, reason="The method always raises") + def test_check_reference_module_scope(self): + code = textwrap.dedent(""" + import numpy as np + + # See gh-30991 + a = np.array([[0, 1], [2, 3]], order='C') + a.resize((2, 1)) + """) + try: + subprocess.check_output([sys.executable, "-c", code], + stderr=subprocess.STDOUT, text=True) + except subprocess.CalledProcessError as e: + assert sys.version_info >= (3, 14) + assert "ValueError" in e.stdout + assert "It is possible that this is a false positive." in e.stdout + else: + if sys.version_info >= (3, 14): + raise AssertionError("Unexpected success of resize refcheck") + + def test_check_reference_2(self): + # see gh-30265 + x = np.zeros((2, 2)) + y = x + with pytest.raises(ValueError): + x.resize((5, 5)) + + @_no_tracing + def test_int_shape(self): + x = np.eye(3) + if IS_PYPY: + x.resize(3, refcheck=False) + else: + x.resize(3) + assert_array_equal(x, np.eye(3)[0, :]) + + def test_none_shape(self): + x = np.eye(3) + x.resize(None) + assert_array_equal(x, np.eye(3)) + x.resize() + assert_array_equal(x, np.eye(3)) + + def test_0d_shape(self): + # to it multiple times to test it does not break alloc cache gh-9216 + for i in range(10): + x = np.empty((1,)) + x.resize(()) + assert_equal(x.shape, ()) + assert_equal(x.size, 1) + x = np.empty(()) + x.resize((1,)) + assert_equal(x.shape, (1,)) + assert_equal(x.size, 1) + + def test_invalid_arguments(self): + assert_raises(TypeError, np.eye(3).resize, 'hi') + assert_raises(ValueError, np.eye(3).resize, -1) + assert_raises(TypeError, np.eye(3).resize, order=1) + assert_raises(TypeError, np.eye(3).resize, refcheck='hi') + + @_no_tracing + def test_freeform_shape(self): + x = np.eye(3) + if IS_PYPY: + x.resize(3, 2, 1, refcheck=False) + else: + x.resize(3, 2, 1) + assert_(x.shape == (3, 2, 1)) + + @_no_tracing + def test_zeros_appended(self): + x = np.eye(3) + if IS_PYPY: + x.resize(2, 3, 3, refcheck=False) + else: + x.resize(2, 3, 3) + assert_array_equal(x[0], np.eye(3)) + assert_array_equal(x[1], np.zeros((3, 3))) + + @_no_tracing + def test_obj_obj(self): + # check memory is initialized on resize, gh-4857 + a = np.ones(10, dtype=[('k', object, 2)]) + if IS_PYPY: + a.resize(15, refcheck=False) + else: + a.resize(15,) + assert_equal(a.shape, (15,)) + assert_array_equal(a['k'][-5:], 0) + assert_array_equal(a['k'][:-5], 1) + + @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") + @pytest.mark.parametrize("dtype", ["O", "O,O"]) + def test_obj_obj_shrinking(self, dtype): + # check that memory is freed when shrinking an array. + test_obj = object() + expected = sys.getrefcount(test_obj) + a = np.array([test_obj, test_obj, test_obj], dtype=dtype) + assert a.size == 3 + a.resize((2, 1)) # two elements, not three! + assert a.size == 2 + del a + # if all is well, then we reclaimed all references + assert sys.getrefcount(test_obj) == expected + + def test_empty_view(self): + # check that sizes containing a zero don't trigger a reallocate for + # already empty arrays + x = np.zeros((10, 0), int) + x_view = x[...] + x_view.resize((0, 10)) + x_view.resize((0, 100)) + + def test_check_weakref(self): + x = np.array([[1, 0, 0], [0, 1, 0], [0, 0, 1]]) + xref = weakref.ref(x) + assert_raises(ValueError, x.resize, (5, 1)) + + +class TestRecord: + def test_field_rename(self): + dt = np.dtype([('f', float), ('i', int)]) + dt.names = ['p', 'q'] + assert_equal(dt.names, ['p', 'q']) + + def test_multiple_field_name_occurrence(self): + def test_dtype_init(): + np.dtype([("A", "f8"), ("B", "f8"), ("A", "f8")]) + + # Error raised when multiple fields have the same name + assert_raises(ValueError, test_dtype_init) + + def test_bytes_fields(self): + # Bytes are not allowed in field names and not recognized in titles + # on Py3 + assert_raises(TypeError, np.dtype, [(b'a', int)]) + assert_raises(TypeError, np.dtype, [(('b', b'a'), int)]) + + dt = np.dtype([((b'a', 'b'), int)]) + assert_raises(TypeError, dt.__getitem__, b'a') + + x = np.array([(1,), (2,), (3,)], dtype=dt) + assert_raises(IndexError, x.__getitem__, b'a') + + y = x[0] + assert_raises(IndexError, y.__getitem__, b'a') + + def test_multiple_field_name_unicode(self): + def test_dtype_unicode(): + np.dtype([("\u20B9", "f8"), ("B", "f8"), ("\u20B9", "f8")]) + + # Error raised when multiple fields have the same name(unicode included) + assert_raises(ValueError, test_dtype_unicode) + + def test_fromarrays_unicode(self): + # A single name string provided to fromarrays() is allowed to be unicode + x = np._core.records.fromarrays( + [[0], [1]], names='a,b', formats='i4,i4') + assert_equal(x['a'][0], 0) + assert_equal(x['b'][0], 1) + + def test_unicode_order(self): + # Test that we can sort with order as a unicode field name + name = 'b' + x = np.array([1, 3, 2], dtype=[(name, int)]) + x.sort(order=name) + assert_equal(x['b'], np.array([1, 2, 3])) + + def test_field_names(self): + # Test unicode and 8-bit / byte strings can be used + a = np.zeros((1,), dtype=[('f1', 'i4'), + ('f2', 'i4'), + ('f3', [('sf1', 'i4')])]) + # byte string indexing fails gracefully + assert_raises(IndexError, a.__setitem__, b'f1', 1) + assert_raises(IndexError, a.__getitem__, b'f1') + assert_raises(IndexError, a['f1'].__setitem__, b'sf1', 1) + assert_raises(IndexError, a['f1'].__getitem__, b'sf1') + b = a.copy() + fn1 = 'f1' + b[fn1] = 1 + assert_equal(b[fn1], 1) + fnn = 'not at all' + assert_raises(ValueError, b.__setitem__, fnn, 1) + assert_raises(ValueError, b.__getitem__, fnn) + b[0][fn1] = 2 + assert_equal(b[fn1], 2) + # Subfield + assert_raises(ValueError, b[0].__setitem__, fnn, 1) + assert_raises(ValueError, b[0].__getitem__, fnn) + # Subfield + fn3 = 'f3' + sfn1 = 'sf1' + b[fn3][sfn1] = 1 + assert_equal(b[fn3][sfn1], 1) + assert_raises(ValueError, b[fn3].__setitem__, fnn, 1) + assert_raises(ValueError, b[fn3].__getitem__, fnn) + # multiple subfields + fn2 = 'f2' + b[fn2] = 3 + + assert_equal(b[['f1', 'f2']][0].tolist(), (2, 3)) + assert_equal(b[['f2', 'f1']][0].tolist(), (3, 2)) + assert_equal(b[['f1', 'f3']][0].tolist(), (2, (1,))) + + # non-ascii unicode field indexing is well behaved + assert_raises(ValueError, a.__setitem__, '\u03e0', 1) + assert_raises(ValueError, a.__getitem__, '\u03e0') + + def test_record_hash(self): + a = np.array([(1, 2), (1, 2)], dtype='i1,i2') + a.flags.writeable = False + b = np.array([(1, 2), (3, 4)], dtype=[('num1', 'i1'), ('num2', 'i2')]) + b.flags.writeable = False + c = np.array([(1, 2), (3, 4)], dtype='i1,i2') + c.flags.writeable = False + assert_(hash(a[0]) == hash(a[1])) + assert_(hash(a[0]) == hash(b[0])) + assert_(hash(a[0]) != hash(b[1])) + assert_(hash(c[0]) == hash(a[0]) and c[0] == a[0]) + + def test_record_no_hash(self): + a = np.array([(1, 2), (1, 2)], dtype='i1,i2') + assert_raises(TypeError, hash, a[0]) + + def test_empty_structure_creation(self): + # make sure these do not raise errors (gh-5631) + np.array([()], dtype={'names': [], 'formats': [], + 'offsets': [], 'itemsize': 12}) + np.array([(), (), (), (), ()], dtype={'names': [], 'formats': [], + 'offsets': [], 'itemsize': 12}) + + def test_multifield_indexing_view(self): + a = np.ones(3, dtype=[('a', 'i4'), ('b', 'f4'), ('c', 'u4')]) + v = a[['a', 'c']] + assert_(v.base is a) + assert_(v.dtype == np.dtype({'names': ['a', 'c'], + 'formats': ['i4', 'u4'], + 'offsets': [0, 8]})) + v[:] = (4, 5) + assert_equal(a[0].item(), (4, 1, 5)) + +class TestView: + def test_basic(self): + x = np.array([(1, 2, 3, 4), (5, 6, 7, 8)], + dtype=[('r', np.int8), ('g', np.int8), + ('b', np.int8), ('a', np.int8)]) + # We must be specific about the endianness here: + y = x.view(dtype=' 0) + assert_(issubclass(w[0].category, RuntimeWarning)) + + def test_empty(self): + A = np.zeros((0, 3)) + for f in self.funcs: + for axis in [0, None]: + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter('always') + assert_(np.isnan(f(A, axis=axis)).all()) + assert_(len(w) > 0) + assert_(issubclass(w[0].category, RuntimeWarning)) + for axis in [1]: + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter('always') + assert_equal(f(A, axis=axis), np.zeros([])) + + def test_mean_values(self): + rmat, cmat, omat = self._create_data() + for mat in [rmat, cmat, omat]: + for axis in [0, 1]: + tgt = mat.sum(axis=axis) + res = _mean(mat, axis=axis) * mat.shape[axis] + assert_almost_equal(res, tgt) + for axis in [None]: + tgt = mat.sum(axis=axis) + res = _mean(mat, axis=axis) * np.prod(mat.shape) + assert_almost_equal(res, tgt) + + def test_mean_float16(self): + # This fail if the sum inside mean is done in float16 instead + # of float32. + assert_(_mean(np.ones(100000, dtype='float16')) == 1) + + def test_mean_axis_error(self): + # Ensure that AxisError is raised instead of IndexError when axis is + # out of bounds, see gh-15817. + with assert_raises(np.exceptions.AxisError): + np.arange(10).mean(axis=2) + + def test_mean_where(self): + a = np.arange(16).reshape((4, 4)) + wh_full = np.array([[False, True, False, True], + [True, False, True, False], + [True, True, False, False], + [False, False, True, True]]) + wh_partial = np.array([[False], + [True], + [True], + [False]]) + _cases = [(1, True, [1.5, 5.5, 9.5, 13.5]), + (0, wh_full, [6., 5., 10., 9.]), + (1, wh_full, [2., 5., 8.5, 14.5]), + (0, wh_partial, [6., 7., 8., 9.])] + for _ax, _wh, _res in _cases: + assert_allclose(a.mean(axis=_ax, where=_wh), + np.array(_res)) + assert_allclose(np.mean(a, axis=_ax, where=_wh), + np.array(_res)) + + a3d = np.arange(16).reshape((2, 2, 4)) + _wh_partial = np.array([False, True, True, False]) + _res = [[1.5, 5.5], [9.5, 13.5]] + assert_allclose(a3d.mean(axis=2, where=_wh_partial), + np.array(_res)) + assert_allclose(np.mean(a3d, axis=2, where=_wh_partial), + np.array(_res)) + + with pytest.warns(RuntimeWarning) as w: + assert_allclose(a.mean(axis=1, where=wh_partial), + np.array([np.nan, 5.5, 9.5, np.nan])) + with pytest.warns(RuntimeWarning) as w: + assert_equal(a.mean(where=False), np.nan) + with pytest.warns(RuntimeWarning) as w: + assert_equal(np.mean(a, where=False), np.nan) + + def test_var_values(self): + rmat, cmat, omat = self._create_data() + for mat in [rmat, cmat, omat]: + for axis in [0, 1, None]: + msqr = _mean(mat * mat.conj(), axis=axis) + mean = _mean(mat, axis=axis) + tgt = msqr - mean * mean.conjugate() + res = _var(mat, axis=axis) + assert_almost_equal(res, tgt) + + @pytest.mark.parametrize(('complex_dtype', 'ndec'), ( + ('complex64', 6), + ('complex128', 7), + ('clongdouble', 7), + )) + def test_var_complex_values(self, complex_dtype, ndec): + _, cmat, _ = self._create_data() + # Test fast-paths for every builtin complex type + for axis in [0, 1, None]: + mat = cmat.copy().astype(complex_dtype) + msqr = _mean(mat * mat.conj(), axis=axis) + mean = _mean(mat, axis=axis) + tgt = msqr - mean * mean.conjugate() + res = _var(mat, axis=axis) + assert_almost_equal(res, tgt, decimal=ndec) + + def test_var_dimensions(self): + # _var paths for complex number introduce additions on views that + # increase dimensions. Ensure this generalizes to higher dims + _, cmat, _ = self._create_data() + mat = np.stack([cmat] * 3) + for axis in [0, 1, 2, -1, None]: + msqr = _mean(mat * mat.conj(), axis=axis) + mean = _mean(mat, axis=axis) + tgt = msqr - mean * mean.conjugate() + res = _var(mat, axis=axis) + assert_almost_equal(res, tgt) + + def test_var_complex_byteorder(self): + # Test that var fast-path does not cause failures for complex arrays + # with non-native byteorder + _, cmat, _ = self._create_data() + cmat = cmat.copy().astype('complex128') + cmat_swapped = cmat.astype(cmat.dtype.newbyteorder()) + assert_almost_equal(cmat.var(), cmat_swapped.var()) + + def test_var_axis_error(self): + # Ensure that AxisError is raised instead of IndexError when axis is + # out of bounds, see gh-15817. + with assert_raises(np.exceptions.AxisError): + np.arange(10).var(axis=2) + + def test_var_where(self): + a = np.arange(25).reshape((5, 5)) + wh_full = np.array([[False, True, False, True, True], + [True, False, True, True, False], + [True, True, False, False, True], + [False, True, True, False, True], + [True, False, True, True, False]]) + wh_partial = np.array([[False], + [True], + [True], + [False], + [True]]) + _cases = [(0, True, [50., 50., 50., 50., 50.]), + (1, True, [2., 2., 2., 2., 2.])] + for _ax, _wh, _res in _cases: + assert_allclose(a.var(axis=_ax, where=_wh), + np.array(_res)) + assert_allclose(np.var(a, axis=_ax, where=_wh), + np.array(_res)) + + a3d = np.arange(16).reshape((2, 2, 4)) + _wh_partial = np.array([False, True, True, False]) + _res = [[0.25, 0.25], [0.25, 0.25]] + assert_allclose(a3d.var(axis=2, where=_wh_partial), + np.array(_res)) + assert_allclose(np.var(a3d, axis=2, where=_wh_partial), + np.array(_res)) + + assert_allclose(np.var(a, axis=1, where=wh_full), + np.var(a[wh_full].reshape((5, 3)), axis=1)) + assert_allclose(np.var(a, axis=0, where=wh_partial), + np.var(a[wh_partial[:, 0]], axis=0)) + with pytest.warns(RuntimeWarning) as w: + assert_equal(a.var(where=False), np.nan) + with pytest.warns(RuntimeWarning) as w: + assert_equal(np.var(a, where=False), np.nan) + + def test_std_values(self): + rmat, cmat, omat = self._create_data() + for mat in [rmat, cmat, omat]: + for axis in [0, 1, None]: + tgt = np.sqrt(_var(mat, axis=axis)) + res = _std(mat, axis=axis) + assert_almost_equal(res, tgt) + + def test_std_where(self): + a = np.arange(25).reshape((5, 5))[::-1] + whf = np.array([[False, True, False, True, True], + [True, False, True, False, True], + [True, True, False, True, False], + [True, False, True, True, False], + [False, True, False, True, True]]) + whp = np.array([[False], + [False], + [True], + [True], + [False]]) + _cases = [ + (0, True, 7.07106781 * np.ones(5)), + (1, True, 1.41421356 * np.ones(5)), + (0, whf, + np.array([4.0824829, 8.16496581, 5., 7.39509973, 8.49836586])), + (0, whp, 2.5 * np.ones(5)) + ] + for _ax, _wh, _res in _cases: + assert_allclose(a.std(axis=_ax, where=_wh), _res) + assert_allclose(np.std(a, axis=_ax, where=_wh), _res) + + a3d = np.arange(16).reshape((2, 2, 4)) + _wh_partial = np.array([False, True, True, False]) + _res = [[0.5, 0.5], [0.5, 0.5]] + assert_allclose(a3d.std(axis=2, where=_wh_partial), + np.array(_res)) + assert_allclose(np.std(a3d, axis=2, where=_wh_partial), + np.array(_res)) + + assert_allclose(a.std(axis=1, where=whf), + np.std(a[whf].reshape((5, 3)), axis=1)) + assert_allclose(np.std(a, axis=1, where=whf), + (a[whf].reshape((5, 3))).std(axis=1)) + assert_allclose(a.std(axis=0, where=whp), + np.std(a[whp[:, 0]], axis=0)) + assert_allclose(np.std(a, axis=0, where=whp), + (a[whp[:, 0]]).std(axis=0)) + with pytest.warns(RuntimeWarning) as w: + assert_equal(a.std(where=False), np.nan) + with pytest.warns(RuntimeWarning) as w: + assert_equal(np.std(a, where=False), np.nan) + + def test_subclass(self): + class TestArray(np.ndarray): + def __new__(cls, data, info): + result = np.array(data) + result = result.view(cls) + result.info = info + return result + + def __array_finalize__(self, obj): + self.info = getattr(obj, "info", '') + + dat = TestArray([[1, 2, 3, 4], [5, 6, 7, 8]], 'jubba') + res = dat.mean(1) + assert_(res.info == dat.info) + res = dat.std(1) + assert_(res.info == dat.info) + res = dat.var(1) + assert_(res.info == dat.info) + + +class TestVdot: + def test_basic(self): + dt_numeric = np.typecodes['AllFloat'] + np.typecodes['AllInteger'] + dt_complex = np.typecodes['Complex'] + + # test real + a = np.eye(3) + for dt in dt_numeric + 'O': + b = a.astype(dt) + res = np.vdot(b, b) + assert_(np.isscalar(res)) + assert_equal(np.vdot(b, b), 3) + + # test complex + a = np.eye(3) * 1j + for dt in dt_complex + 'O': + b = a.astype(dt) + res = np.vdot(b, b) + assert_(np.isscalar(res)) + assert_equal(np.vdot(b, b), 3) + + # test boolean + b = np.eye(3, dtype=bool) + res = np.vdot(b, b) + assert_(np.isscalar(res)) + assert_equal(np.vdot(b, b), True) + + def test_vdot_array_order(self): + a = np.array([[1, 2], [3, 4]], order='C') + b = np.array([[1, 2], [3, 4]], order='F') + res = np.vdot(a, a) + + # integer arrays are exact + assert_equal(np.vdot(a, b), res) + assert_equal(np.vdot(b, a), res) + assert_equal(np.vdot(b, b), res) + + def test_vdot_uncontiguous(self): + for size in [2, 1000]: + # Different sizes match different branches in vdot. + a = np.zeros((size, 2, 2)) + b = np.zeros((size, 2, 2)) + a[:, 0, 0] = np.arange(size) + b[:, 0, 0] = np.arange(size) + 1 + # Make a and b uncontiguous: + a = a[..., 0] + b = b[..., 0] + + assert_equal(np.vdot(a, b), + np.vdot(a.flatten(), b.flatten())) + assert_equal(np.vdot(a, b.copy()), + np.vdot(a.flatten(), b.flatten())) + assert_equal(np.vdot(a.copy(), b), + np.vdot(a.flatten(), b.flatten())) + assert_equal(np.vdot(a.copy('F'), b), + np.vdot(a.flatten(), b.flatten())) + assert_equal(np.vdot(a, b.copy('F')), + np.vdot(a.flatten(), b.flatten())) + + +class TestDot: + N = 7 + + def _create_data(self): + rng = np.random.RandomState(128) + A = rng.random((4, 2)) + b1 = rng.random((2, 1)) + b2 = rng.random(2) + b3 = rng.random((1, 2)) + b4 = rng.random(4) + return A, b1, b2, b3, b4 + + def test_dotmatmat(self): + A, _, _, _, _ = self._create_data() + res = np.dot(A.transpose(), A) + tgt = np.array([[1.45046013, 0.86323640], + [0.86323640, 0.84934569]]) + assert_almost_equal(res, tgt, decimal=self.N) + + def test_dotmatvec(self): + A, b1, _, _, _ = self._create_data() + res = np.dot(A, b1) + tgt = np.array([[0.32114320], [0.04889721], + [0.15696029], [0.33612621]]) + assert_almost_equal(res, tgt, decimal=self.N) + + def test_dotmatvec2(self): + A, _, b2, _, _ = self._create_data() + res = np.dot(A, b2) + tgt = np.array([0.29677940, 0.04518649, 0.14468333, 0.31039293]) + assert_almost_equal(res, tgt, decimal=self.N) + + def test_dotvecmat(self): + A, _, _, _, b4 = self._create_data() + res = np.dot(b4, A) + tgt = np.array([1.23495091, 1.12222648]) + assert_almost_equal(res, tgt, decimal=self.N) + + def test_dotvecmat2(self): + A, _, _, b3, _ = self._create_data() + res = np.dot(b3, A.transpose()) + tgt = np.array([[0.58793804, 0.08957460, 0.30605758, 0.62716383]]) + assert_almost_equal(res, tgt, decimal=self.N) + + def test_dotvecmat3(self): + A, _, _, _, b4 = self._create_data() + res = np.dot(A.transpose(), b4) + tgt = np.array([1.23495091, 1.12222648]) + assert_almost_equal(res, tgt, decimal=self.N) + + def test_dotvecvecouter(self): + _, b1, _, b3, _ = self._create_data() + res = np.dot(b1, b3) + tgt = np.array([[0.20128610, 0.08400440], [0.07190947, 0.03001058]]) + assert_almost_equal(res, tgt, decimal=self.N) + + def test_dotvecvecinner(self): + _, b1, _, b3, _ = self._create_data() + res = np.dot(b3, b1) + tgt = np.array([[0.23129668]]) + assert_almost_equal(res, tgt, decimal=self.N) + + def test_dotcolumnvect1(self): + b1 = np.ones((3, 1)) + b2 = [5.3] + res = np.dot(b1, b2) + tgt = np.array([5.3, 5.3, 5.3]) + assert_almost_equal(res, tgt, decimal=self.N) + + def test_dotcolumnvect2(self): + b1 = np.ones((3, 1)).transpose() + b2 = [6.2] + res = np.dot(b2, b1) + tgt = np.array([6.2, 6.2, 6.2]) + assert_almost_equal(res, tgt, decimal=self.N) + + def test_dotvecscalar(self): + rng = np.random.RandomState(100) + b1 = rng.random((1, 1)) + b2 = rng.random((1, 4)) + res = np.dot(b1, b2) + tgt = np.array([[0.15126730, 0.23068496, 0.45905553, 0.00256425]]) + assert_almost_equal(res, tgt, decimal=self.N) + + def test_dotvecscalar2(self): + rng = np.random.RandomState(100) + b1 = rng.random((4, 1)) + b2 = rng.random((1, 1)) + res = np.dot(b1, b2) + tgt = np.array([[0.00256425], [0.00131359], [0.00200324], [0.00398638]]) + assert_almost_equal(res, tgt, decimal=self.N) + + def test_all(self): + dims = [(), (1,), (1, 1)] + dout = [(), (1,), (1, 1), (1,), (), (1,), (1, 1), (1,), (1, 1)] + for dim, (dim1, dim2) in zip(dout, itertools.product(dims, dims)): + b1 = np.zeros(dim1) + b2 = np.zeros(dim2) + res = np.dot(b1, b2) + tgt = np.zeros(dim) + assert_(res.shape == tgt.shape) + assert_almost_equal(res, tgt, decimal=self.N) + + def test_vecobject(self): + class Vec: + def __init__(self, sequence=None): + if sequence is None: + sequence = [] + self.array = np.array(sequence) + + def __add__(self, other): + out = Vec() + out.array = self.array + other.array + return out + + def __sub__(self, other): + out = Vec() + out.array = self.array - other.array + return out + + def __mul__(self, other): # with scalar + out = Vec(self.array.copy()) + out.array *= other + return out + + def __rmul__(self, other): + return self * other + + U_non_cont = np.transpose([[1., 1.], [1., 2.]]) + U_cont = np.ascontiguousarray(U_non_cont) + x = np.array([Vec([1., 0.]), Vec([0., 1.])]) + zeros = np.array([Vec([0., 0.]), Vec([0., 0.])]) + zeros_test = np.dot(U_cont, x) - np.dot(U_non_cont, x) + assert_equal(zeros[0].array, zeros_test[0].array) + assert_equal(zeros[1].array, zeros_test[1].array) + + def test_dot_2args(self): + + a = np.array([[1, 2], [3, 4]], dtype=float) + b = np.array([[1, 0], [1, 1]], dtype=float) + c = np.array([[3, 2], [7, 4]], dtype=float) + + d = dot(a, b) + assert_allclose(c, d) + + def test_dot_3args(self): + + np.random.seed(22) + f = np.random.random_sample((1024, 16)) + v = np.random.random_sample((16, 32)) + + r = np.empty((1024, 32)) + if HAS_REFCOUNT: + orig_refcount = sys.getrefcount(r) + for i in range(12): + dot(f, v, r) + if HAS_REFCOUNT: + assert_equal(sys.getrefcount(r), orig_refcount) + r2 = dot(f, v, out=None) + assert_array_equal(r2, r) + assert_(r is dot(f, v, out=r)) + + v = v[:, 0].copy() # v.shape == (16,) + r = r[:, 0].copy() # r.shape == (1024,) + r2 = dot(f, v) + assert_(r is dot(f, v, r)) + assert_array_equal(r2, r) + + def test_dot_3args_errors(self): + + np.random.seed(22) + f = np.random.random_sample((1024, 16)) + v = np.random.random_sample((16, 32)) + + r = np.empty((1024, 31)) + assert_raises(ValueError, dot, f, v, r) + + r = np.empty((1024,)) + assert_raises(ValueError, dot, f, v, r) + + r = np.empty((32,)) + assert_raises(ValueError, dot, f, v, r) + + r = np.empty((32, 1024)) + assert_raises(ValueError, dot, f, v, r) + assert_raises(ValueError, dot, f, v, r.T) + + r = np.empty((1024, 64)) + assert_raises(ValueError, dot, f, v, r[:, ::2]) + assert_raises(ValueError, dot, f, v, r[:, :32]) + + r = np.empty((1024, 32), dtype=np.float32) + assert_raises(ValueError, dot, f, v, r) + + r = np.empty((1024, 32), dtype=int) + assert_raises(ValueError, dot, f, v, r) + + def test_dot_out_result(self): + x = np.ones((), dtype=np.float16) + y = np.ones((5,), dtype=np.float16) + z = np.zeros((5,), dtype=np.float16) + res = x.dot(y, out=z) + assert np.array_equal(res, y) + assert np.array_equal(z, y) + + def test_dot_out_aliasing(self): + x = np.ones((), dtype=np.float16) + y = np.ones((5,), dtype=np.float16) + z = np.zeros((5,), dtype=np.float16) + res = x.dot(y, out=z) + z[0] = 2 + assert np.array_equal(res, z) + + def test_dot_array_order(self): + a = np.array([[1, 2], [3, 4]], order='C') + b = np.array([[1, 2], [3, 4]], order='F') + res = np.dot(a, a) + + # integer arrays are exact + assert_equal(np.dot(a, b), res) + assert_equal(np.dot(b, a), res) + assert_equal(np.dot(b, b), res) + + def test_accelerate_framework_sgemv_fix(self): + + def aligned_array(shape, align, dtype, order='C'): + d = dtype(0) + N = np.prod(shape) + tmp = np.zeros(N * d.nbytes + align, dtype=np.uint8) + address = tmp.__array_interface__["data"][0] + for offset in range(align): + if (address + offset) % align == 0: + break + tmp = tmp[offset:offset + N * d.nbytes].view(dtype=dtype) + return tmp.reshape(shape, order=order) + + def as_aligned(arr, align, dtype, order='C'): + aligned = aligned_array(arr.shape, align, dtype, order) + aligned[:] = arr[:] + return aligned + + def assert_dot_close(A, X, desired): + assert_allclose(np.dot(A, X), desired, rtol=1e-5, atol=1e-7) + + m = aligned_array(100, 15, np.float32) + s = aligned_array((100, 100), 15, np.float32) + np.dot(s, m) # this will always segfault if the bug is present + + testdata = itertools.product((15, 32), (10000,), (200, 89), ('C', 'F')) + for align, m, n, a_order in testdata: + # Calculation in double precision + A_d = np.random.rand(m, n) + X_d = np.random.rand(n) + desired = np.dot(A_d, X_d) + # Calculation with aligned single precision + A_f = as_aligned(A_d, align, np.float32, order=a_order) + X_f = as_aligned(X_d, align, np.float32) + assert_dot_close(A_f, X_f, desired) + # Strided A rows + A_d_2 = A_d[::2] + desired = np.dot(A_d_2, X_d) + A_f_2 = A_f[::2] + assert_dot_close(A_f_2, X_f, desired) + # Strided A columns, strided X vector + A_d_22 = A_d_2[:, ::2] + X_d_2 = X_d[::2] + desired = np.dot(A_d_22, X_d_2) + A_f_22 = A_f_2[:, ::2] + X_f_2 = X_f[::2] + assert_dot_close(A_f_22, X_f_2, desired) + # Check the strides are as expected + if a_order == 'F': + assert_equal(A_f_22.strides, (8, 8 * m)) + else: + assert_equal(A_f_22.strides, (8 * n, 8)) + assert_equal(X_f_2.strides, (8,)) + # Strides in A rows + cols only + X_f_2c = as_aligned(X_f_2, align, np.float32) + assert_dot_close(A_f_22, X_f_2c, desired) + # Strides just in A cols + A_d_12 = A_d[:, ::2] + desired = np.dot(A_d_12, X_d_2) + A_f_12 = A_f[:, ::2] + assert_dot_close(A_f_12, X_f_2c, desired) + # Strides in A cols and X + assert_dot_close(A_f_12, X_f_2, desired) + + @pytest.mark.slow + @pytest.mark.parametrize("dtype", [np.float64, np.complex128]) + @requires_memory(free_bytes=18e9) # complex case needs 18GiB+ + @pytest.mark.thread_unsafe(reason="crashes with low memory") + def test_huge_vectordot(self, dtype): + # Large vector multiplications are chunked with 32bit BLAS + # Test that the chunking does the right thing, see also gh-22262 + data = np.ones(2**30 + 100, dtype=dtype) + res = np.dot(data, data) + assert res == 2**30 + 100 + + def test_dtype_discovery_fails(self): + # See gh-14247, error checking was missing for failed dtype discovery + class BadObject: + def __array__(self, dtype=None, copy=None): + raise TypeError("just this tiny mint leaf") + + with pytest.raises(TypeError): + np.dot(BadObject(), BadObject()) + + with pytest.raises(TypeError): + np.dot(3.0, BadObject()) + + +class MatmulCommon: + """Common tests for '@' operator and numpy.matmul. + + """ + # Should work with these types. Will want to add + # "O" at some point + types = "?bhilqBHILQefdgFDGO" + + def test_exceptions(self): + dims = [ + ((1,), (2,)), # mismatched vector vector + ((2, 1,), (2,)), # mismatched matrix vector + ((2,), (1, 2)), # mismatched vector matrix + ((1, 2), (3, 1)), # mismatched matrix matrix + ((1,), ()), # vector scalar + ((), (1)), # scalar vector + ((1, 1), ()), # matrix scalar + ((), (1, 1)), # scalar matrix + ((2, 2, 1), (3, 1, 2)), # cannot broadcast + ] + + for dt, (dm1, dm2) in itertools.product(self.types, dims): + a = np.ones(dm1, dtype=dt) + b = np.ones(dm2, dtype=dt) + assert_raises(ValueError, self.matmul, a, b) + + def test_shapes(self): + dims = [ + ((1, 1), (2, 1, 1)), # broadcast first argument + ((2, 1, 1), (1, 1)), # broadcast second argument + ((2, 1, 1), (2, 1, 1)), # matrix stack sizes match + ] + + for dt, (dm1, dm2) in itertools.product(self.types, dims): + a = np.ones(dm1, dtype=dt) + b = np.ones(dm2, dtype=dt) + res = self.matmul(a, b) + assert_(res.shape == (2, 1, 1)) + + # vector vector returns scalars. + for dt in self.types: + a = np.ones((2,), dtype=dt) + b = np.ones((2,), dtype=dt) + c = self.matmul(a, b) + assert_(np.array(c).shape == ()) + + def test_result_types(self): + mat = np.ones((1, 1)) + vec = np.ones((1,)) + for dt in self.types: + m = mat.astype(dt) + v = vec.astype(dt) + for arg in [(m, v), (v, m), (m, m)]: + res = self.matmul(*arg) + assert_(res.dtype == dt) + + # vector vector returns scalars + if dt != "O": + res = self.matmul(v, v) + assert_(type(res) is np.dtype(dt).type) + + def test_scalar_output(self): + vec1 = np.array([2]) + vec2 = np.array([3, 4]).reshape(1, -1) + tgt = np.array([6, 8]) + for dt in self.types[1:]: + v1 = vec1.astype(dt) + v2 = vec2.astype(dt) + res = self.matmul(v1, v2) + assert_equal(res, tgt) + res = self.matmul(v2.T, v1) + assert_equal(res, tgt) + + # boolean type + vec = np.array([True, True], dtype='?').reshape(1, -1) + res = self.matmul(vec[:, 0], vec) + assert_equal(res, True) + + def test_vector_vector_values(self): + vec1 = np.array([1, 2]) + vec2 = np.array([3, 4]).reshape(-1, 1) + tgt1 = np.array([11]) + tgt2 = np.array([[3, 6], [4, 8]]) + for dt in self.types[1:]: + v1 = vec1.astype(dt) + v2 = vec2.astype(dt) + res = self.matmul(v1, v2) + assert_equal(res, tgt1) + # no broadcast, we must make v1 into a 2d ndarray + res = self.matmul(v2, v1.reshape(1, -1)) + assert_equal(res, tgt2) + + # boolean type + vec = np.array([True, True], dtype='?') + res = self.matmul(vec, vec) + assert_equal(res, True) + + def test_vector_matrix_values(self): + vec = np.array([1, 2]) + mat1 = np.array([[1, 2], [3, 4]]) + mat2 = np.stack([mat1] * 2, axis=0) + tgt1 = np.array([7, 10]) + tgt2 = np.stack([tgt1] * 2, axis=0) + for dt in self.types[1:]: + v = vec.astype(dt) + m1 = mat1.astype(dt) + m2 = mat2.astype(dt) + res = self.matmul(v, m1) + assert_equal(res, tgt1) + res = self.matmul(v, m2) + assert_equal(res, tgt2) + + # boolean type + vec = np.array([True, False]) + mat1 = np.array([[True, False], [False, True]]) + mat2 = np.stack([mat1] * 2, axis=0) + tgt1 = np.array([True, False]) + tgt2 = np.stack([tgt1] * 2, axis=0) + + res = self.matmul(vec, mat1) + assert_equal(res, tgt1) + res = self.matmul(vec, mat2) + assert_equal(res, tgt2) + + def test_matrix_vector_values(self): + vec = np.array([1, 2]) + mat1 = np.array([[1, 2], [3, 4]]) + mat2 = np.stack([mat1] * 2, axis=0) + tgt1 = np.array([5, 11]) + tgt2 = np.stack([tgt1] * 2, axis=0) + for dt in self.types[1:]: + v = vec.astype(dt) + m1 = mat1.astype(dt) + m2 = mat2.astype(dt) + res = self.matmul(m1, v) + assert_equal(res, tgt1) + res = self.matmul(m2, v) + assert_equal(res, tgt2) + + # boolean type + vec = np.array([True, False]) + mat1 = np.array([[True, False], [False, True]]) + mat2 = np.stack([mat1] * 2, axis=0) + tgt1 = np.array([True, False]) + tgt2 = np.stack([tgt1] * 2, axis=0) + + res = self.matmul(vec, mat1) + assert_equal(res, tgt1) + res = self.matmul(vec, mat2) + assert_equal(res, tgt2) + + def test_matrix_matrix_values(self): + mat1 = np.array([[1, 2], [3, 4]]) + mat2 = np.array([[1, 0], [1, 1]]) + mat12 = np.stack([mat1, mat2], axis=0) + mat21 = np.stack([mat2, mat1], axis=0) + tgt11 = np.array([[7, 10], [15, 22]]) + tgt12 = np.array([[3, 2], [7, 4]]) + tgt21 = np.array([[1, 2], [4, 6]]) + tgt12_21 = np.stack([tgt12, tgt21], axis=0) + tgt11_12 = np.stack((tgt11, tgt12), axis=0) + tgt11_21 = np.stack((tgt11, tgt21), axis=0) + for dt in self.types[1:]: + m1 = mat1.astype(dt) + m2 = mat2.astype(dt) + m12 = mat12.astype(dt) + m21 = mat21.astype(dt) + + # matrix @ matrix + res = self.matmul(m1, m2) + assert_equal(res, tgt12) + res = self.matmul(m2, m1) + assert_equal(res, tgt21) + + # stacked @ matrix + res = self.matmul(m12, m1) + assert_equal(res, tgt11_21) + + # matrix @ stacked + res = self.matmul(m1, m12) + assert_equal(res, tgt11_12) + + # stacked @ stacked + res = self.matmul(m12, m21) + assert_equal(res, tgt12_21) + + # boolean type + m1 = np.array([[1, 1], [0, 0]], dtype=np.bool) + m2 = np.array([[1, 0], [1, 1]], dtype=np.bool) + m12 = np.stack([m1, m2], axis=0) + m21 = np.stack([m2, m1], axis=0) + tgt11 = m1 + tgt12 = m1 + tgt21 = np.array([[1, 1], [1, 1]], dtype=np.bool) + tgt12_21 = np.stack([tgt12, tgt21], axis=0) + tgt11_12 = np.stack((tgt11, tgt12), axis=0) + tgt11_21 = np.stack((tgt11, tgt21), axis=0) + + # matrix @ matrix + res = self.matmul(m1, m2) + assert_equal(res, tgt12) + res = self.matmul(m2, m1) + assert_equal(res, tgt21) + + # stacked @ matrix + res = self.matmul(m12, m1) + assert_equal(res, tgt11_21) + + # matrix @ stacked + res = self.matmul(m1, m12) + assert_equal(res, tgt11_12) + + # stacked @ stacked + res = self.matmul(m12, m21) + assert_equal(res, tgt12_21) + + +class TestMatmul(MatmulCommon): + matmul = np.matmul + + def test_out_arg(self): + a = np.ones((5, 2), dtype=float) + b = np.array([[1, 3], [5, 7]], dtype=float) + tgt = np.dot(a, b) + + # test as positional argument + msg = "out positional argument" + out = np.zeros((5, 2), dtype=float) + self.matmul(a, b, out) + assert_array_equal(out, tgt, err_msg=msg) + + # test as keyword argument + msg = "out keyword argument" + out = np.zeros((5, 2), dtype=float) + self.matmul(a, b, out=out) + assert_array_equal(out, tgt, err_msg=msg) + + # test out with not allowed type cast (safe casting) + msg = "Cannot cast ufunc .* output" + out = np.zeros((5, 2), dtype=np.int32) + assert_raises_regex(TypeError, msg, self.matmul, a, b, out=out) + + # test out with type upcast to complex + out = np.zeros((5, 2), dtype=np.complex128) + c = self.matmul(a, b, out=out) + assert_(c is out) + with warnings.catch_warnings(): + warnings.simplefilter('ignore', ComplexWarning) + c = c.astype(tgt.dtype) + assert_array_equal(c, tgt) + + def test_empty_out(self): + # Check that the output cannot be broadcast, so that it cannot be + # size zero when the outer dimensions (iterator size) has size zero. + arr = np.ones((0, 1, 1)) + out = np.ones((1, 1, 1)) + assert self.matmul(arr, arr).shape == (0, 1, 1) + + with pytest.raises(ValueError, match=r"non-broadcastable"): + self.matmul(arr, arr, out=out) + + def test_out_contiguous(self): + a = np.ones((5, 2), dtype=float) + b = np.array([[1, 3], [5, 7]], dtype=float) + v = np.array([1, 3], dtype=float) + tgt = np.dot(a, b) + tgt_mv = np.dot(a, v) + + # test out non-contiguous + out = np.ones((5, 2, 2), dtype=float) + c = self.matmul(a, b, out=out[..., 0]) + assert c.base is out + assert_array_equal(c, tgt) + c = self.matmul(a, v, out=out[:, 0, 0]) + assert_array_equal(c, tgt_mv) + c = self.matmul(v, a.T, out=out[:, 0, 0]) + assert_array_equal(c, tgt_mv) + + # test out contiguous in only last dim + out = np.ones((10, 2), dtype=float) + c = self.matmul(a, b, out=out[::2, :]) + assert_array_equal(c, tgt) + + # test transposes of out, args + out = np.ones((5, 2), dtype=float) + c = self.matmul(b.T, a.T, out=out.T) + assert_array_equal(out, tgt) + + m1 = np.arange(15.).reshape(5, 3) + m2 = np.arange(21.).reshape(3, 7) + m3 = np.arange(30.).reshape(5, 6)[:, ::2] # non-contiguous + vc = np.arange(10.) + vr = np.arange(6.) + m0 = np.zeros((3, 0)) + + @pytest.mark.parametrize('args', ( + # matrix-matrix + (m1, m2), (m2.T, m1.T), (m2.T.copy(), m1.T), (m2.T, m1.T.copy()), + # matrix-matrix-transpose, contiguous and non + (m1, m1.T), (m1.T, m1), (m1, m3.T), (m3, m1.T), + (m3, m3.T), (m3.T, m3), + # matrix-matrix non-contiguous + (m3, m2), (m2.T, m3.T), (m2.T.copy(), m3.T), + # vector-matrix, matrix-vector, contiguous + (m1, vr[:3]), (vc[:5], m1), (m1.T, vc[:5]), (vr[:3], m1.T), + # vector-matrix, matrix-vector, vector non-contiguous + (m1, vr[::2]), (vc[::2], m1), (m1.T, vc[::2]), (vr[::2], m1.T), + # vector-matrix, matrix-vector, matrix non-contiguous + (m3, vr[:3]), (vc[:5], m3), (m3.T, vc[:5]), (vr[:3], m3.T), + # vector-matrix, matrix-vector, both non-contiguous + (m3, vr[::2]), (vc[::2], m3), (m3.T, vc[::2]), (vr[::2], m3.T), + # size == 0 + (m0, m0.T), (m0.T, m0), (m1, m0), (m0.T, m1.T), + )) + def test_dot_equivalent(self, args): + r1 = np.matmul(*args) + r2 = np.dot(*args) + assert_equal(r1, r2) + + r3 = np.matmul(args[0].copy(), args[1].copy()) + assert_equal(r1, r3) + + # issue 29164 with extra checks + @pytest.mark.parametrize('dtype', ( + np.float32, np.float64, np.complex64, np.complex128 + )) + def test_dot_equivalent_matrix_matrix_blastypes(self, dtype): + modes = list(itertools.product(['C', 'F'], [True, False])) + + def apply_mode(m, mode): + order, is_contiguous = mode + if is_contiguous: + return m.copy() if order == 'C' else m.T.copy().T + + retval = np.zeros( + (m.shape[0] * 2, m.shape[1] * 2), dtype=m.dtype, order=order + )[::2, ::2] + retval[...] = m + return retval + + is_complex = np.issubdtype(dtype, np.complexfloating) + m1 = self.m1.astype(dtype) + (1j if is_complex else 0) + m2 = self.m2.astype(dtype) + (1j if is_complex else 0) + dot_res = np.dot(m1, m2) + mo = np.zeros_like(dot_res) + + for mode in itertools.product(*[modes] * 3): + m1_, m2_, mo_ = [apply_mode(*x) for x in zip([m1, m2, mo], mode)] + assert_equal(np.matmul(m1_, m2_, out=mo_), dot_res) + + def test_matmul_object(self): + import fractions + + f = np.vectorize(fractions.Fraction) + + def random_ints(): + return np.random.randint(1, 1000, size=(10, 3, 3)) + M1 = f(random_ints(), random_ints()) + M2 = f(random_ints(), random_ints()) + + M3 = self.matmul(M1, M2) + + [N1, N2, N3] = [a.astype(float) for a in [M1, M2, M3]] + + assert_allclose(N3, self.matmul(N1, N2)) + + def test_matmul_object_type_scalar(self): + from fractions import Fraction as F + v = np.array([F(2, 3), F(5, 7)]) + res = self.matmul(v, v) + assert_(type(res) is F) + + def test_matmul_empty(self): + a = np.empty((3, 0), dtype=object) + b = np.empty((0, 3), dtype=object) + c = np.zeros((3, 3)) + assert_array_equal(np.matmul(a, b), c) + + def test_matmul_exception_multiply(self): + # test that matmul fails if `__mul__` is missing + class add_not_multiply: + def __add__(self, other): + return self + a = np.full((3, 3), add_not_multiply()) + with assert_raises(TypeError): + b = np.matmul(a, a) + + def test_matmul_exception_add(self): + # test that matmul fails if `__add__` is missing + class multiply_not_add: + def __mul__(self, other): + return self + a = np.full((3, 3), multiply_not_add()) + with assert_raises(TypeError): + b = np.matmul(a, a) + + def test_matmul_bool(self): + # gh-14439 + a = np.array([[1, 0], [1, 1]], dtype=bool) + assert np.max(a.view(np.uint8)) == 1 + b = np.matmul(a, a) + # matmul with boolean output should always be 0, 1 + assert np.max(b.view(np.uint8)) == 1 + + rg = np.random.default_rng(np.random.PCG64(43)) + d = rg.integers(2, size=4 * 5, dtype=np.int8) + d = d.reshape(4, 5) > 0 + out1 = np.matmul(d, d.reshape(5, 4)) + out2 = np.dot(d, d.reshape(5, 4)) + assert_equal(out1, out2) + + c = np.matmul(np.zeros((2, 0), dtype=bool), np.zeros(0, dtype=bool)) + assert not np.any(c) + + +class TestMatmulOperator(MatmulCommon): + import operator + matmul = operator.matmul + + def test_array_priority_override(self): + + class A: + __array_priority__ = 1000 + + def __matmul__(self, other): + return "A" + + def __rmatmul__(self, other): + return "A" + + a = A() + b = np.ones(2) + assert_equal(self.matmul(a, b), "A") + assert_equal(self.matmul(b, a), "A") + + def test_matmul_raises(self): + assert_raises(TypeError, self.matmul, np.int8(5), np.int8(5)) + assert_raises(TypeError, self.matmul, np.void(b'abc'), np.void(b'abc')) + assert_raises(TypeError, self.matmul, np.arange(10), np.void(b'abc')) + + +class TestMatmulInplace: + DTYPES = {} + for i in MatmulCommon.types: + for j in MatmulCommon.types: + if np.can_cast(j, i): + DTYPES[f"{i}-{j}"] = (np.dtype(i), np.dtype(j)) + + @pytest.mark.parametrize("dtype1,dtype2", DTYPES.values(), ids=DTYPES) + def test_basic(self, dtype1: np.dtype, dtype2: np.dtype) -> None: + a = np.arange(10).reshape(5, 2).astype(dtype1) + a_id = id(a) + b = np.ones((2, 2), dtype=dtype2) + + ref = a @ b + a @= b + + assert id(a) == a_id + assert a.dtype == dtype1 + assert a.shape == (5, 2) + if dtype1.kind in "fc": + np.testing.assert_allclose(a, ref) + else: + np.testing.assert_array_equal(a, ref) + + SHAPES = { + "2d_large": ((10**5, 10), (10, 10)), + "3d_large": ((10**4, 10, 10), (1, 10, 10)), + "1d": ((3,), (3,)), + "2d_1d": ((3, 3), (3,)), + "1d_2d": ((3,), (3, 3)), + "2d_broadcast": ((3, 3), (3, 1)), + "2d_broadcast_reverse": ((1, 3), (3, 3)), + "3d_broadcast1": ((3, 3, 3), (1, 3, 1)), + "3d_broadcast2": ((3, 3, 3), (1, 3, 3)), + "3d_broadcast3": ((3, 3, 3), (3, 3, 1)), + "3d_broadcast_reverse1": ((1, 3, 3), (3, 3, 3)), + "3d_broadcast_reverse2": ((3, 1, 3), (3, 3, 3)), + "3d_broadcast_reverse3": ((1, 1, 3), (3, 3, 3)), + } + + @pytest.mark.parametrize("a_shape,b_shape", SHAPES.values(), ids=SHAPES) + def test_shapes(self, a_shape: tuple[int, ...], b_shape: tuple[int, ...]): + a_size = np.prod(a_shape) + a = np.arange(a_size).reshape(a_shape).astype(np.float64) + a_id = id(a) + + b_size = np.prod(b_shape) + b = np.arange(b_size).reshape(b_shape) + + ref = a @ b + if ref.shape != a_shape: + with pytest.raises(ValueError): + a @= b + return + else: + a @= b + + assert id(a) == a_id + assert a.dtype.type == np.float64 + assert a.shape == a_shape + np.testing.assert_allclose(a, ref) + + +def test_matmul_axes(): + a = np.arange(3 * 4 * 5).reshape(3, 4, 5) + c = np.matmul(a, a, axes=[(-2, -1), (-1, -2), (1, 2)]) + assert c.shape == (3, 4, 4) + d = np.matmul(a, a, axes=[(-2, -1), (-1, -2), (0, 1)]) + assert d.shape == (4, 4, 3) + e = np.swapaxes(d, 0, 2) + assert_array_equal(e, c) + f = np.matmul(a, np.arange(3), axes=[(1, 0), (0), (0)]) + assert f.shape == (4, 5) + + +class TestInner: + + def test_inner_type_mismatch(self): + c = 1. + A = np.array((1, 1), dtype='i,i') + + assert_raises(TypeError, np.inner, c, A) + assert_raises(TypeError, np.inner, A, c) + + def test_inner_scalar_and_vector(self): + for dt in np.typecodes['AllInteger'] + np.typecodes['AllFloat'] + '?': + sca = np.array(3, dtype=dt)[()] + vec = np.array([1, 2], dtype=dt) + desired = np.array([3, 6], dtype=dt) + assert_equal(np.inner(vec, sca), desired) + assert_equal(np.inner(sca, vec), desired) + + def test_vecself(self): + # Ticket 844. + # Inner product of a vector with itself segfaults or give + # meaningless result + a = np.zeros(shape=(1, 80), dtype=np.float64) + p = np.inner(a, a) + assert_almost_equal(p, 0, decimal=14) + + def test_inner_product_with_various_contiguities(self): + # github issue 6532 + for dt in np.typecodes['AllInteger'] + np.typecodes['AllFloat'] + '?': + # check an inner product involving a matrix transpose + A = np.array([[1, 2], [3, 4]], dtype=dt) + B = np.array([[1, 3], [2, 4]], dtype=dt) + C = np.array([1, 1], dtype=dt) + desired = np.array([4, 6], dtype=dt) + assert_equal(np.inner(A.T, C), desired) + assert_equal(np.inner(C, A.T), desired) + assert_equal(np.inner(B, C), desired) + assert_equal(np.inner(C, B), desired) + # check a matrix product + desired = np.array([[7, 10], [15, 22]], dtype=dt) + assert_equal(np.inner(A, B), desired) + # check the syrk vs. gemm paths + desired = np.array([[5, 11], [11, 25]], dtype=dt) + assert_equal(np.inner(A, A), desired) + assert_equal(np.inner(A, A.copy()), desired) + # check an inner product involving an aliased and reversed view + a = np.arange(5).astype(dt) + b = a[::-1] + desired = np.array(10, dtype=dt).item() + assert_equal(np.inner(b, a), desired) + + def test_3d_tensor(self): + for dt in np.typecodes['AllInteger'] + np.typecodes['AllFloat'] + '?': + a = np.arange(24).reshape(2, 3, 4).astype(dt) + b = np.arange(24, 48).reshape(2, 3, 4).astype(dt) + desired = np.array( + [[[[ 158, 182, 206], + [ 230, 254, 278]], + + [[ 566, 654, 742], + [ 830, 918, 1006]], + + [[ 974, 1126, 1278], + [1430, 1582, 1734]]], + + [[[1382, 1598, 1814], + [2030, 2246, 2462]], + + [[1790, 2070, 2350], + [2630, 2910, 3190]], + + [[2198, 2542, 2886], + [3230, 3574, 3918]]]] + ).astype(dt) + assert_equal(np.inner(a, b), desired) + assert_equal(np.inner(b, a).transpose(2, 3, 0, 1), desired) + + +class TestChoose: + def _create_data(self): + x = 2 * np.ones((3,), dtype=int) + y = 3 * np.ones((3,), dtype=int) + x2 = 2 * np.ones((2, 3), dtype=int) + y2 = 3 * np.ones((2, 3), dtype=int) + ind = [0, 0, 1] + return x, y, x2, y2, ind + + def test_basic(self): + x, y, _, _, ind = self._create_data() + A = np.choose(ind, (x, y)) + assert_equal(A, [2, 2, 3]) + + def test_broadcast1(self): + _, _, x2, y2, ind = self._create_data() + A = np.choose(ind, (x2, y2)) + assert_equal(A, [[2, 2, 3], [2, 2, 3]]) + + def test_broadcast2(self): + x, _, _, y2, ind = self._create_data() + A = np.choose(ind, (x, y2)) + assert_equal(A, [[2, 2, 3], [2, 2, 3]]) + + @pytest.mark.parametrize("ops", + [(1000, np.array([1], dtype=np.uint8)), + (-1, np.array([1], dtype=np.uint8)), + (1., np.float32(3)), + (1., np.array([3], dtype=np.float32))],) + def test_output_dtype(self, ops): + expected_dt = np.result_type(*ops) + assert np.choose([0], ops).dtype == expected_dt + + def test_dimension_and_args_limit(self): + # Maxdims for the legacy iterator is 32, but the maximum number + # of arguments is actually larger (a itself also counts here) + a = np.ones((1,) * 32, dtype=np.intp) + res = a.choose([0, a] + [2] * 61) + with pytest.raises(ValueError, + match="Need at least 0 and at most 64 array objects"): + a.choose([0, a] + [2] * 62) + + assert_array_equal(res, a) + # Choose is unfortunately limited to 32 dims as of NumPy 2.0 + a = np.ones((1,) * 60, dtype=np.intp) + with pytest.raises(RuntimeError, + match=".*32 dimensions but the array has 60"): + a.choose([a, a]) + + +class TestRepeat: + def _create_data(self): + m = np.array([1, 2, 3, 4, 5, 6]) + m_rect = m.reshape((2, 3)) + return m, m_rect + + def test_basic(self): + m, _ = self._create_data() + A = np.repeat(m, [1, 3, 2, 1, 1, 2]) + assert_equal(A, [1, 2, 2, 2, 3, + 3, 4, 5, 6, 6]) + + def test_broadcast1(self): + m, _ = self._create_data() + A = np.repeat(m, 2) + assert_equal(A, [1, 1, 2, 2, 3, 3, + 4, 4, 5, 5, 6, 6]) + + def test_axis_spec(self): + _, m_rect = self._create_data() + A = np.repeat(m_rect, [2, 1], axis=0) + assert_equal(A, [[1, 2, 3], + [1, 2, 3], + [4, 5, 6]]) + + A = np.repeat(m_rect, [1, 3, 2], axis=1) + assert_equal(A, [[1, 2, 2, 2, 3, 3], + [4, 5, 5, 5, 6, 6]]) + + def test_broadcast2(self): + _, m_rect = self._create_data() + A = np.repeat(m_rect, 2, axis=0) + assert_equal(A, [[1, 2, 3], + [1, 2, 3], + [4, 5, 6], + [4, 5, 6]]) + + A = np.repeat(m_rect, 2, axis=1) + assert_equal(A, [[1, 1, 2, 2, 3, 3], + [4, 4, 5, 5, 6, 6]]) + + +# TODO: test for multidimensional +NEIGH_MODE = {'zero': 0, 'one': 1, 'constant': 2, 'circular': 3, 'mirror': 4} + + +@pytest.mark.parametrize('dt', [float, Decimal], ids=['float', 'object']) +class TestNeighborhoodIter: + # Simple, 2d tests + def test_simple2d(self, dt): + # Test zero and one padding for simple data type + x = np.array([[0, 1], [2, 3]], dtype=dt) + r = [np.array([[0, 0, 0], [0, 0, 1]], dtype=dt), + np.array([[0, 0, 0], [0, 1, 0]], dtype=dt), + np.array([[0, 0, 1], [0, 2, 3]], dtype=dt), + np.array([[0, 1, 0], [2, 3, 0]], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator( + x, [-1, 0, -1, 1], x[0], NEIGH_MODE['zero']) + assert_array_equal(l, r) + + r = [np.array([[1, 1, 1], [1, 0, 1]], dtype=dt), + np.array([[1, 1, 1], [0, 1, 1]], dtype=dt), + np.array([[1, 0, 1], [1, 2, 3]], dtype=dt), + np.array([[0, 1, 1], [2, 3, 1]], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator( + x, [-1, 0, -1, 1], x[0], NEIGH_MODE['one']) + assert_array_equal(l, r) + + r = [np.array([[4, 4, 4], [4, 0, 1]], dtype=dt), + np.array([[4, 4, 4], [0, 1, 4]], dtype=dt), + np.array([[4, 0, 1], [4, 2, 3]], dtype=dt), + np.array([[0, 1, 4], [2, 3, 4]], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator( + x, [-1, 0, -1, 1], 4, NEIGH_MODE['constant']) + assert_array_equal(l, r) + + # Test with start in the middle + r = [np.array([[4, 0, 1], [4, 2, 3]], dtype=dt), + np.array([[0, 1, 4], [2, 3, 4]], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator( + x, [-1, 0, -1, 1], 4, NEIGH_MODE['constant'], 2) + assert_array_equal(l, r) + + def test_mirror2d(self, dt): + x = np.array([[0, 1], [2, 3]], dtype=dt) + r = [np.array([[0, 0, 1], [0, 0, 1]], dtype=dt), + np.array([[0, 1, 1], [0, 1, 1]], dtype=dt), + np.array([[0, 0, 1], [2, 2, 3]], dtype=dt), + np.array([[0, 1, 1], [2, 3, 3]], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator( + x, [-1, 0, -1, 1], x[0], NEIGH_MODE['mirror']) + assert_array_equal(l, r) + + # Simple, 1d tests + def test_simple(self, dt): + # Test padding with constant values + x = np.linspace(1, 5, 5).astype(dt) + r = [[0, 1, 2], [1, 2, 3], [2, 3, 4], [3, 4, 5], [4, 5, 0]] + l = _multiarray_tests.test_neighborhood_iterator( + x, [-1, 1], x[0], NEIGH_MODE['zero']) + assert_array_equal(l, r) + + r = [[1, 1, 2], [1, 2, 3], [2, 3, 4], [3, 4, 5], [4, 5, 1]] + l = _multiarray_tests.test_neighborhood_iterator( + x, [-1, 1], x[0], NEIGH_MODE['one']) + assert_array_equal(l, r) + + r = [[x[4], 1, 2], [1, 2, 3], [2, 3, 4], [3, 4, 5], [4, 5, x[4]]] + l = _multiarray_tests.test_neighborhood_iterator( + x, [-1, 1], x[4], NEIGH_MODE['constant']) + assert_array_equal(l, r) + + # Test mirror modes + def test_mirror(self, dt): + x = np.linspace(1, 5, 5).astype(dt) + r = np.array([[2, 1, 1, 2, 3], [1, 1, 2, 3, 4], [1, 2, 3, 4, 5], + [2, 3, 4, 5, 5], [3, 4, 5, 5, 4]], dtype=dt) + l = _multiarray_tests.test_neighborhood_iterator( + x, [-2, 2], x[1], NEIGH_MODE['mirror']) + assert_([i.dtype == dt for i in l]) + assert_array_equal(l, r) + + # Circular mode + def test_circular(self, dt): + x = np.linspace(1, 5, 5).astype(dt) + r = np.array([[4, 5, 1, 2, 3], [5, 1, 2, 3, 4], [1, 2, 3, 4, 5], + [2, 3, 4, 5, 1], [3, 4, 5, 1, 2]], dtype=dt) + l = _multiarray_tests.test_neighborhood_iterator( + x, [-2, 2], x[0], NEIGH_MODE['circular']) + assert_array_equal(l, r) + + +# Test stacking neighborhood iterators +class TestStackedNeighborhoodIter: + # Simple, 1d test: stacking 2 constant-padded neigh iterators + def test_simple_const(self): + dt = np.float64 + # Test zero and one padding for simple data type + x = np.array([1, 2, 3], dtype=dt) + r = [np.array([0], dtype=dt), + np.array([0], dtype=dt), + np.array([1], dtype=dt), + np.array([2], dtype=dt), + np.array([3], dtype=dt), + np.array([0], dtype=dt), + np.array([0], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator_oob( + x, [-2, 4], NEIGH_MODE['zero'], [0, 0], NEIGH_MODE['zero']) + assert_array_equal(l, r) + + r = [np.array([1, 0, 1], dtype=dt), + np.array([0, 1, 2], dtype=dt), + np.array([1, 2, 3], dtype=dt), + np.array([2, 3, 0], dtype=dt), + np.array([3, 0, 1], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator_oob( + x, [-1, 3], NEIGH_MODE['zero'], [-1, 1], NEIGH_MODE['one']) + assert_array_equal(l, r) + + # 2nd simple, 1d test: stacking 2 neigh iterators, mixing const padding and + # mirror padding + def test_simple_mirror(self): + dt = np.float64 + # Stacking zero on top of mirror + x = np.array([1, 2, 3], dtype=dt) + r = [np.array([0, 1, 1], dtype=dt), + np.array([1, 1, 2], dtype=dt), + np.array([1, 2, 3], dtype=dt), + np.array([2, 3, 3], dtype=dt), + np.array([3, 3, 0], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator_oob( + x, [-1, 3], NEIGH_MODE['mirror'], [-1, 1], NEIGH_MODE['zero']) + assert_array_equal(l, r) + + # Stacking mirror on top of zero + x = np.array([1, 2, 3], dtype=dt) + r = [np.array([1, 0, 0], dtype=dt), + np.array([0, 0, 1], dtype=dt), + np.array([0, 1, 2], dtype=dt), + np.array([1, 2, 3], dtype=dt), + np.array([2, 3, 0], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator_oob( + x, [-1, 3], NEIGH_MODE['zero'], [-2, 0], NEIGH_MODE['mirror']) + assert_array_equal(l, r) + + # Stacking mirror on top of zero: 2nd + x = np.array([1, 2, 3], dtype=dt) + r = [np.array([0, 1, 2], dtype=dt), + np.array([1, 2, 3], dtype=dt), + np.array([2, 3, 0], dtype=dt), + np.array([3, 0, 0], dtype=dt), + np.array([0, 0, 3], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator_oob( + x, [-1, 3], NEIGH_MODE['zero'], [0, 2], NEIGH_MODE['mirror']) + assert_array_equal(l, r) + + # Stacking mirror on top of zero: 3rd + x = np.array([1, 2, 3], dtype=dt) + r = [np.array([1, 0, 0, 1, 2], dtype=dt), + np.array([0, 0, 1, 2, 3], dtype=dt), + np.array([0, 1, 2, 3, 0], dtype=dt), + np.array([1, 2, 3, 0, 0], dtype=dt), + np.array([2, 3, 0, 0, 3], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator_oob( + x, [-1, 3], NEIGH_MODE['zero'], [-2, 2], NEIGH_MODE['mirror']) + assert_array_equal(l, r) + + # 3rd simple, 1d test: stacking 2 neigh iterators, mixing const padding and + # circular padding + def test_simple_circular(self): + dt = np.float64 + # Stacking zero on top of mirror + x = np.array([1, 2, 3], dtype=dt) + r = [np.array([0, 3, 1], dtype=dt), + np.array([3, 1, 2], dtype=dt), + np.array([1, 2, 3], dtype=dt), + np.array([2, 3, 1], dtype=dt), + np.array([3, 1, 0], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator_oob( + x, [-1, 3], NEIGH_MODE['circular'], [-1, 1], NEIGH_MODE['zero']) + assert_array_equal(l, r) + + # Stacking mirror on top of zero + x = np.array([1, 2, 3], dtype=dt) + r = [np.array([3, 0, 0], dtype=dt), + np.array([0, 0, 1], dtype=dt), + np.array([0, 1, 2], dtype=dt), + np.array([1, 2, 3], dtype=dt), + np.array([2, 3, 0], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator_oob( + x, [-1, 3], NEIGH_MODE['zero'], [-2, 0], NEIGH_MODE['circular']) + assert_array_equal(l, r) + + # Stacking mirror on top of zero: 2nd + x = np.array([1, 2, 3], dtype=dt) + r = [np.array([0, 1, 2], dtype=dt), + np.array([1, 2, 3], dtype=dt), + np.array([2, 3, 0], dtype=dt), + np.array([3, 0, 0], dtype=dt), + np.array([0, 0, 1], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator_oob( + x, [-1, 3], NEIGH_MODE['zero'], [0, 2], NEIGH_MODE['circular']) + assert_array_equal(l, r) + + # Stacking mirror on top of zero: 3rd + x = np.array([1, 2, 3], dtype=dt) + r = [np.array([3, 0, 0, 1, 2], dtype=dt), + np.array([0, 0, 1, 2, 3], dtype=dt), + np.array([0, 1, 2, 3, 0], dtype=dt), + np.array([1, 2, 3, 0, 0], dtype=dt), + np.array([2, 3, 0, 0, 1], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator_oob( + x, [-1, 3], NEIGH_MODE['zero'], [-2, 2], NEIGH_MODE['circular']) + assert_array_equal(l, r) + + # 4th simple, 1d test: stacking 2 neigh iterators, but with lower iterator + # being strictly within the array + def test_simple_strict_within(self): + dt = np.float64 + # Stacking zero on top of zero, first neighborhood strictly inside the + # array + x = np.array([1, 2, 3], dtype=dt) + r = [np.array([1, 2, 3, 0], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator_oob( + x, [1, 1], NEIGH_MODE['zero'], [-1, 2], NEIGH_MODE['zero']) + assert_array_equal(l, r) + + # Stacking mirror on top of zero, first neighborhood strictly inside the + # array + x = np.array([1, 2, 3], dtype=dt) + r = [np.array([1, 2, 3, 3], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator_oob( + x, [1, 1], NEIGH_MODE['zero'], [-1, 2], NEIGH_MODE['mirror']) + assert_array_equal(l, r) + + # Stacking mirror on top of zero, first neighborhood strictly inside the + # array + x = np.array([1, 2, 3], dtype=dt) + r = [np.array([1, 2, 3, 1], dtype=dt)] + l = _multiarray_tests.test_neighborhood_iterator_oob( + x, [1, 1], NEIGH_MODE['zero'], [-1, 2], NEIGH_MODE['circular']) + assert_array_equal(l, r) + +class TestWarnings: + + def test_complex_warning(self): + x = np.array([1, 2]) + y = np.array([1 - 2j, 1 + 2j]) + + with warnings.catch_warnings(): + warnings.simplefilter("error", ComplexWarning) + assert_raises(ComplexWarning, x.__setitem__, slice(None), y) + assert_equal(x, [1, 2]) + + +class TestMinScalarType: + + def test_usigned_shortshort(self): + dt = np.min_scalar_type(2**8 - 1) + wanted = np.dtype('uint8') + assert_equal(wanted, dt) + + def test_usigned_short(self): + dt = np.min_scalar_type(2**16 - 1) + wanted = np.dtype('uint16') + assert_equal(wanted, dt) + + def test_usigned_int(self): + dt = np.min_scalar_type(2**32 - 1) + wanted = np.dtype('uint32') + assert_equal(wanted, dt) + + def test_usigned_longlong(self): + dt = np.min_scalar_type(2**63 - 1) + wanted = np.dtype('uint64') + assert_equal(wanted, dt) + + def test_object(self): + dt = np.min_scalar_type(2**64) + wanted = np.dtype('O') + assert_equal(wanted, dt) + + +from numpy._core._internal import _dtype_from_pep3118 + + +class TestPEP3118Dtype: + def _check(self, spec, wanted): + dt = np.dtype(wanted) + actual = _dtype_from_pep3118(spec) + assert_equal(actual, dt, + err_msg=f"spec {spec!r} != dtype {wanted!r}") + + def test_native_padding(self): + align = np.dtype('i').alignment + for j in range(8): + if j == 0: + s = 'bi' + else: + s = 'b%dxi' % j + self._check('@' + s, {'f0': ('i1', 0), + 'f1': ('i', align * (1 + j // align))}) + self._check('=' + s, {'f0': ('i1', 0), + 'f1': ('i', 1 + j)}) + + def test_native_padding_2(self): + # Native padding should work also for structs and sub-arrays + self._check('x3T{xi}', {'f0': (({'f0': ('i', 4)}, (3,)), 4)}) + self._check('^x3T{xi}', {'f0': (({'f0': ('i', 1)}, (3,)), 1)}) + + def test_trailing_padding(self): + # Trailing padding should be included, *and*, the item size + # should match the alignment if in aligned mode + align = np.dtype('i').alignment + size = np.dtype('i').itemsize + + def aligned(n): + return align * (1 + (n - 1) // align) + + base = {"formats": ['i'], "names": ['f0']} + + self._check('ix', dict(itemsize=aligned(size + 1), **base)) + self._check('ixx', dict(itemsize=aligned(size + 2), **base)) + self._check('ixxx', dict(itemsize=aligned(size + 3), **base)) + self._check('ixxxx', dict(itemsize=aligned(size + 4), **base)) + self._check('i7x', dict(itemsize=aligned(size + 7), **base)) + + self._check('^ix', dict(itemsize=size + 1, **base)) + self._check('^ixx', dict(itemsize=size + 2, **base)) + self._check('^ixxx', dict(itemsize=size + 3, **base)) + self._check('^ixxxx', dict(itemsize=size + 4, **base)) + self._check('^i7x', dict(itemsize=size + 7, **base)) + + def test_native_padding_3(self): + dt = np.dtype( + [('a', 'b'), ('b', 'i'), + ('sub', np.dtype('b,i')), ('c', 'i')], + align=True) + self._check("T{b:a:xxxi:b:T{b:f0:=i:f1:}:sub:xxxi:c:}", dt) + + dt = np.dtype( + [('a', 'b'), ('b', 'i'), ('c', 'b'), ('d', 'b'), + ('e', 'b'), ('sub', np.dtype('b,i', align=True))]) + self._check("T{b:a:=i:b:b:c:b:d:b:e:T{b:f0:xxxi:f1:}:sub:}", dt) + + def test_padding_with_array_inside_struct(self): + dt = np.dtype( + [('a', 'b'), ('b', 'i'), ('c', 'b', (3,)), + ('d', 'i')], + align=True) + self._check("T{b:a:xxxi:b:3b:c:xi:d:}", dt) + + def test_byteorder_inside_struct(self): + # The byte order after @T{=i} should be '=', not '@'. + # Check this by noting the absence of native alignment. + self._check('@T{^i}xi', {'f0': ({'f0': ('i', 0)}, 0), + 'f1': ('i', 5)}) + + def test_intra_padding(self): + # Natively aligned sub-arrays may require some internal padding + align = np.dtype('i').alignment + size = np.dtype('i').itemsize + + def aligned(n): + return (align * (1 + (n - 1) // align)) + + self._check('(3)T{ix}', ({ + "names": ['f0'], + "formats": ['i'], + "offsets": [0], + "itemsize": aligned(size + 1) + }, (3,))) + + def test_char_vs_string(self): + dt = np.dtype('c') + self._check('c', dt) + + dt = np.dtype([('f0', 'S1', (4,)), ('f1', 'S4')]) + self._check('4c4s', dt) + + def test_field_order(self): + # gh-9053 - previously, we relied on dictionary key order + self._check("(0)I:a:f:b:", [('a', 'I', (0,)), ('b', 'f')]) + self._check("(0)I:b:f:a:", [('b', 'I', (0,)), ('a', 'f')]) + + def test_unnamed_fields(self): + self._check('ii', [('f0', 'i'), ('f1', 'i')]) + self._check('ii:f0:', [('f1', 'i'), ('f0', 'i')]) + + self._check('i', 'i') + self._check('i:f0:', [('f0', 'i')]) + + +class TestNewBufferProtocol: + """ Test PEP3118 buffers """ + + def _check_roundtrip(self, obj): + obj = np.asarray(obj) + x = memoryview(obj) + y = np.asarray(x) + y2 = np.array(x) + assert_(not y.flags.owndata) + assert_(y2.flags.owndata) + + assert_equal(y.dtype, obj.dtype) + assert_equal(y.shape, obj.shape) + assert_array_equal(obj, y) + + assert_equal(y2.dtype, obj.dtype) + assert_equal(y2.shape, obj.shape) + assert_array_equal(obj, y2) + + def test_roundtrip(self): + x = np.array([1, 2, 3, 4, 5], dtype='i4') + self._check_roundtrip(x) + + x = np.array([[1, 2], [3, 4]], dtype=np.float64) + self._check_roundtrip(x) + + x = np.zeros((3, 3, 3), dtype=np.float32)[:, 0, :] + self._check_roundtrip(x) + + dt = [('a', 'b'), + ('b', 'h'), + ('c', 'i'), + ('d', 'l'), + ('dx', 'q'), + ('e', 'B'), + ('f', 'H'), + ('g', 'I'), + ('h', 'L'), + ('hx', 'Q'), + ('i', np.single), + ('j', np.double), + ('k', np.longdouble), + ('ix', np.csingle), + ('jx', np.cdouble), + ('kx', np.clongdouble), + ('l', 'S4'), + ('m', 'U4'), + ('n', 'V3'), + ('o', '?'), + ('p', np.half), + ] + x = np.array( + [(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + b'aaaa', 'bbbb', b'xxx', True, 1.0)], + dtype=dt) + self._check_roundtrip(x) + + x = np.array(([[1, 2], [3, 4]],), dtype=[('a', (int, (2, 2)))]) + self._check_roundtrip(x) + + x = np.array([1, 2, 3], dtype='>i2') + self._check_roundtrip(x) + + x = np.array([1, 2, 3], dtype='') + x = np.zeros(4, dtype=dt) + self._check_roundtrip(x) + + def test_roundtrip_scalar(self): + # Issue #4015. + self._check_roundtrip(0) + + def test_invalid_buffer_format(self): + # datetime64 cannot be used fully in a buffer yet + # Should be fixed in the next Numpy major release + dt = np.dtype([('a', 'uint16'), ('b', 'M8[s]')]) + a = np.empty(3, dt) + assert_raises((ValueError, BufferError), memoryview, a) + assert_raises((ValueError, BufferError), memoryview, np.array((3), 'M8[D]')) + + def test_export_simple_1d(self): + x = np.array([1, 2, 3, 4, 5], dtype='i') + y = memoryview(x) + assert_equal(y.format, 'i') + assert_equal(y.shape, (5,)) + assert_equal(y.ndim, 1) + assert_equal(y.strides, (4,)) + assert_equal(y.suboffsets, ()) + assert_equal(y.itemsize, 4) + + def test_export_simple_nd(self): + x = np.array([[1, 2], [3, 4]], dtype=np.float64) + y = memoryview(x) + assert_equal(y.format, 'd') + assert_equal(y.shape, (2, 2)) + assert_equal(y.ndim, 2) + assert_equal(y.strides, (16, 8)) + assert_equal(y.suboffsets, ()) + assert_equal(y.itemsize, 8) + + def test_export_discontiguous(self): + x = np.zeros((3, 3, 3), dtype=np.float32)[:, 0, :] + y = memoryview(x) + assert_equal(y.format, 'f') + assert_equal(y.shape, (3, 3)) + assert_equal(y.ndim, 2) + assert_equal(y.strides, (36, 4)) + assert_equal(y.suboffsets, ()) + assert_equal(y.itemsize, 4) + + def test_export_record(self): + dt = [('a', 'b'), + ('b', 'h'), + ('c', 'i'), + ('d', 'l'), + ('dx', 'q'), + ('e', 'B'), + ('f', 'H'), + ('g', 'I'), + ('h', 'L'), + ('hx', 'Q'), + ('i', np.single), + ('j', np.double), + ('k', np.longdouble), + ('ix', np.csingle), + ('jx', np.cdouble), + ('kx', np.clongdouble), + ('l', 'S4'), + ('m', 'U4'), + ('n', 'V3'), + ('o', '?'), + ('p', np.half), + ] + x = np.array( + [(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + b'aaaa', 'bbbb', b' ', True, 1.0)], + dtype=dt) + y = memoryview(x) + assert_equal(y.shape, (1,)) + assert_equal(y.ndim, 1) + assert_equal(y.suboffsets, ()) + + sz = sum(np.dtype(b).itemsize for a, b in dt) + if np.dtype('l').itemsize == 4: + assert_equal(y.format, 'T{b:a:=h:b:i:c:l:d:q:dx:B:e:@H:f:=I:g:L:h:Q:hx:f:i:d:j:^g:k:=Zf:ix:Zd:jx:^Zg:kx:4s:l:=4w:m:3x:n:?:o:@e:p:}') + else: + assert_equal(y.format, 'T{b:a:=h:b:i:c:q:d:q:dx:B:e:@H:f:=I:g:Q:h:Q:hx:f:i:d:j:^g:k:=Zf:ix:Zd:jx:^Zg:kx:4s:l:=4w:m:3x:n:?:o:@e:p:}') + assert_equal(y.strides, (sz,)) + assert_equal(y.itemsize, sz) + + def test_export_subarray(self): + x = np.array(([[1, 2], [3, 4]],), dtype=[('a', ('i', (2, 2)))]) + y = memoryview(x) + assert_equal(y.format, 'T{(2,2)i:a:}') + assert_equal(y.shape, ()) + assert_equal(y.ndim, 0) + assert_equal(y.strides, ()) + assert_equal(y.suboffsets, ()) + assert_equal(y.itemsize, 16) + + def test_export_endian(self): + x = np.array([1, 2, 3], dtype='>i') + y = memoryview(x) + if sys.byteorder == 'little': + assert_equal(y.format, '>i') + else: + assert_equal(y.format, 'i') + + x = np.array([1, 2, 3], dtype=' np.array(0, dtype=dt1), f"type {dt1} failed") + assert_(not 1 < np.array(0, dtype=dt1), f"type {dt1} failed") + + for dt2 in np.typecodes['AllInteger']: + assert_(np.array(1, dtype=dt1) > np.array(0, dtype=dt2), + f"type {dt1} and {dt2} failed") + assert_(not np.array(1, dtype=dt1) < np.array(0, dtype=dt2), + f"type {dt1} and {dt2} failed") + + # Unsigned integers + for dt1 in 'BHILQP': + assert_(-1 < np.array(1, dtype=dt1), f"type {dt1} failed") + assert_(not -1 > np.array(1, dtype=dt1), f"type {dt1} failed") + assert_(-1 != np.array(1, dtype=dt1), f"type {dt1} failed") + + # Unsigned vs signed + for dt2 in 'bhilqp': + assert_(np.array(1, dtype=dt1) > np.array(-1, dtype=dt2), + f"type {dt1} and {dt2} failed") + assert_(not np.array(1, dtype=dt1) < np.array(-1, dtype=dt2), + f"type {dt1} and {dt2} failed") + assert_(np.array(1, dtype=dt1) != np.array(-1, dtype=dt2), + f"type {dt1} and {dt2} failed") + + # Signed integers and floats + for dt1 in 'bhlqp' + np.typecodes['Float']: + assert_(1 > np.array(-1, dtype=dt1), f"type {dt1} failed") + assert_(not 1 < np.array(-1, dtype=dt1), f"type {dt1} failed") + assert_(-1 == np.array(-1, dtype=dt1), f"type {dt1} failed") + + for dt2 in 'bhlqp' + np.typecodes['Float']: + assert_(np.array(1, dtype=dt1) > np.array(-1, dtype=dt2), + f"type {dt1} and {dt2} failed") + assert_(not np.array(1, dtype=dt1) < np.array(-1, dtype=dt2), + f"type {dt1} and {dt2} failed") + assert_(np.array(-1, dtype=dt1) == np.array(-1, dtype=dt2), + f"type {dt1} and {dt2} failed") + + def test_to_bool_scalar(self): + assert_equal(bool(np.array([False])), False) + assert_equal(bool(np.array([True])), True) + assert_equal(bool(np.array([[42]])), True) + + def test_to_bool_scalar_not_convertible(self): + + class NotConvertible: + def __bool__(self): + raise NotImplementedError + + assert_raises(NotImplementedError, bool, np.array(NotConvertible())) + assert_raises(NotImplementedError, bool, np.array([NotConvertible()])) + if IS_PYSTON: + pytest.skip("Pyston disables recursion checking") + if IS_WASM: + pytest.skip("Pyodide/WASM has limited stack size") + + self_containing = np.array([None]) + self_containing[0] = self_containing + + Error = RecursionError + + assert_raises(Error, bool, self_containing) # previously stack overflow + self_containing[0] = None # resolve circular reference + + def test_to_bool_scalar_size_errors(self): + with pytest.raises(ValueError, match=".*one element is ambiguous"): + bool(np.array([1, 2])) + + with pytest.raises(ValueError, match=".*empty array is ambiguous"): + bool(np.empty((3, 0))) + + with pytest.raises(ValueError, match=".*empty array is ambiguous"): + bool(np.empty((0,))) + + def test_to_int_scalar(self): + # gh-9972 means that these aren't always the same + int_funcs = (int, lambda x: x.__int__()) + for int_func in int_funcs: + assert_equal(int_func(np.array(0)), 0) + assert_raises(TypeError, int_func, np.array([1])) + assert_raises(TypeError, int_func, np.array([[42]])) + assert_raises(TypeError, int_func, np.array([1, 2])) + + # gh-9972 + assert_equal(4, int_func(np.array('4'))) + assert_equal(5, int_func(np.bytes_(b'5'))) + assert_equal(6, int_func(np.str_('6'))) + + class NotConvertible: + def __int__(self): + raise NotImplementedError + assert_raises(NotImplementedError, + int_func, np.array(NotConvertible())) + assert_raises(TypeError, + int_func, np.array([NotConvertible()])) + + def test_to_float_scalar(self): + float_funcs = (float, lambda x: x.__float__()) + for float_func in float_funcs: + assert_equal(float_func(np.array(0)), 0.0) + assert_equal(float_func(np.array(1.0, np.float64)), 1.0) + assert_raises(TypeError, float_func, np.array([2])) + assert_raises(TypeError, float_func, np.array([3.14])) + assert_raises(TypeError, float_func, np.array([[4.0]])) + + assert_equal(5.0, float_func(np.array('5'))) + assert_equal(5.1, float_func(np.array('5.1'))) + assert_equal(6.0, float_func(np.bytes_(b'6'))) + assert_equal(6.1, float_func(np.bytes_(b'6.1'))) + assert_equal(7.0, float_func(np.str_('7'))) + assert_equal(7.1, float_func(np.str_('7.1'))) + + +class TestWhere: + def test_basic(self): + dts = [bool, np.int16, np.int32, np.int64, np.double, np.complex128, + np.longdouble, np.clongdouble] + for dt in dts: + c = np.ones(53, dtype=bool) + assert_equal(np.where( c, dt(0), dt(1)), dt(0)) + assert_equal(np.where(~c, dt(0), dt(1)), dt(1)) + assert_equal(np.where(True, dt(0), dt(1)), dt(0)) + assert_equal(np.where(False, dt(0), dt(1)), dt(1)) + d = np.ones_like(c).astype(dt) + e = np.zeros_like(d) + r = d.astype(dt) + c[7] = False + r[7] = e[7] + assert_equal(np.where(c, e, e), e) + assert_equal(np.where(c, d, e), r) + assert_equal(np.where(c, d, e[0]), r) + assert_equal(np.where(c, d[0], e), r) + assert_equal(np.where(c[::2], d[::2], e[::2]), r[::2]) + assert_equal(np.where(c[1::2], d[1::2], e[1::2]), r[1::2]) + assert_equal(np.where(c[::3], d[::3], e[::3]), r[::3]) + assert_equal(np.where(c[1::3], d[1::3], e[1::3]), r[1::3]) + assert_equal(np.where(c[::-2], d[::-2], e[::-2]), r[::-2]) + assert_equal(np.where(c[::-3], d[::-3], e[::-3]), r[::-3]) + assert_equal(np.where(c[1::-3], d[1::-3], e[1::-3]), r[1::-3]) + + @pytest.mark.skipif(IS_WASM, reason="no wasm fp exception support") + def test_exotic(self): + # object + assert_array_equal(np.where(True, None, None), np.array(None)) + # zero sized + m = np.array([], dtype=bool).reshape(0, 3) + b = np.array([], dtype=np.float64).reshape(0, 3) + assert_array_equal(np.where(m, 0, b), np.array([]).reshape(0, 3)) + + # object cast + d = np.array([-1.34, -0.16, -0.54, -0.31, -0.08, -0.95, 0.000, 0.313, + 0.547, -0.18, 0.876, 0.236, 1.969, 0.310, 0.699, 1.013, + 1.267, 0.229, -1.39, 0.487]) + nan = float('NaN') + e = np.array(['5z', '0l', nan, 'Wz', nan, nan, 'Xq', 'cs', nan, nan, + 'QN', nan, nan, 'Fd', nan, nan, 'kp', nan, '36', 'i1'], + dtype=object) + m = np.array([0, 0, 1, 0, 1, 1, 0, 0, 1, 1, + 0, 1, 1, 0, 1, 1, 0, 1, 0, 0], dtype=bool) + + r = e[:] + r[np.where(m)] = d[np.where(m)] + assert_array_equal(np.where(m, d, e), r) + + r = e[:] + r[np.where(~m)] = d[np.where(~m)] + assert_array_equal(np.where(m, e, d), r) + + assert_array_equal(np.where(m, e, e), e) + + # minimal dtype result with NaN scalar (e.g required by pandas) + d = np.array([1., 2.], dtype=np.float32) + e = float('NaN') + assert_equal(np.where(True, d, e).dtype, np.float32) + e = float('Infinity') + assert_equal(np.where(True, d, e).dtype, np.float32) + e = float('-Infinity') + assert_equal(np.where(True, d, e).dtype, np.float32) + # With NEP 50 adopted, the float will overflow here: + e = 1e150 + with pytest.warns(RuntimeWarning, match="overflow"): + res = np.where(True, d, e) + assert res.dtype == np.float32 + + def test_ndim(self): + c = [True, False] + a = np.zeros((2, 25)) + b = np.ones((2, 25)) + r = np.where(np.array(c)[:, np.newaxis], a, b) + assert_array_equal(r[0], a[0]) + assert_array_equal(r[1], b[0]) + + a = a.T + b = b.T + r = np.where(c, a, b) + assert_array_equal(r[:, 0], a[:, 0]) + assert_array_equal(r[:, 1], b[:, 0]) + + def test_dtype_mix(self): + c = np.array([False, True, False, False, False, False, True, False, + False, False, True, False]) + a = np.uint32(1) + b = np.array([5., 0., 3., 2., -1., -4., 0., -10., 10., 1., 0., 3.], + dtype=np.float64) + r = np.array([5., 1., 3., 2., -1., -4., 1., -10., 10., 1., 1., 3.], + dtype=np.float64) + assert_equal(np.where(c, a, b), r) + + a = a.astype(np.float32) + b = b.astype(np.int64) + assert_equal(np.where(c, a, b), r) + + # non bool mask + c = c.astype(int) + c[c != 0] = 34242324 + assert_equal(np.where(c, a, b), r) + # invert + tmpmask = c != 0 + c[c == 0] = 41247212 + c[tmpmask] = 0 + assert_equal(np.where(c, b, a), r) + + def test_foreign(self): + c = np.array([False, True, False, False, False, False, True, False, + False, False, True, False]) + r = np.array([5., 1., 3., 2., -1., -4., 1., -10., 10., 1., 1., 3.], + dtype=np.float64) + a = np.ones(1, dtype='>i4') + b = np.array([5., 0., 3., 2., -1., -4., 0., -10., 10., 1., 0., 3.], + dtype=np.float64) + assert_equal(np.where(c, a, b), r) + + b = b.astype('>f8') + assert_equal(np.where(c, a, b), r) + + a = a.astype('i4') + assert_equal(np.where(c, a, b), r) + + def test_error(self): + c = [True, True] + a = np.ones((4, 5)) + b = np.ones((5, 5)) + assert_raises(ValueError, np.where, c, a, a) + assert_raises(ValueError, np.where, c[0], a, b) + + def test_string(self): + # gh-4778 check strings are properly filled with nulls + a = np.array("abc") + b = np.array("x" * 753) + assert_equal(np.where(True, a, b), "abc") + assert_equal(np.where(False, b, a), "abc") + + # check native datatype sized strings + a = np.array("abcd") + b = np.array("x" * 8) + assert_equal(np.where(True, a, b), "abcd") + assert_equal(np.where(False, b, a), "abcd") + + def test_empty_result(self): + # pass empty where result through an assignment which reads the data of + # empty arrays, error detectable with valgrind, see gh-8922 + x = np.zeros((1, 1)) + ibad = np.vstack(np.where(x == 99.)) + assert_array_equal(ibad, + np.atleast_2d(np.array([[], []], dtype=np.intp))) + + def test_largedim(self): + # invalid read regression gh-9304 + shape = [10, 2, 3, 4, 5, 6] + np.random.seed(2) + array = np.random.rand(*shape) + + for i in range(10): + benchmark = array.nonzero() + result = array.nonzero() + assert_array_equal(benchmark, result) + + def test_kwargs(self): + a = np.zeros(1) + with assert_raises(TypeError): + np.where(a, x=a, y=a) + + +if not IS_PYPY: + # sys.getsizeof() is not valid on PyPy + class TestSizeOf: + + def test_empty_array(self): + x = np.array([]) + assert_(sys.getsizeof(x) > 0) + + def check_array(self, dtype): + elem_size = dtype(0).itemsize + + for length in [10, 50, 100, 500]: + x = np.arange(length, dtype=dtype) + assert_(sys.getsizeof(x) > length * elem_size) + + def test_array_int32(self): + self.check_array(np.int32) + + def test_array_int64(self): + self.check_array(np.int64) + + def test_array_float32(self): + self.check_array(np.float32) + + def test_array_float64(self): + self.check_array(np.float64) + + def test_view(self): + d = np.ones(100) + assert_(sys.getsizeof(d[...]) < sys.getsizeof(d)) + + def test_reshape(self): + d = np.ones(100) + assert_(sys.getsizeof(d) < sys.getsizeof(d.reshape(100, 1, 1).copy())) + + @_no_tracing + def test_resize(self): + d = np.ones(100) + old = sys.getsizeof(d) + d.resize(50) + assert_(old > sys.getsizeof(d)) + d.resize(150) + assert_(old < sys.getsizeof(d)) + + @pytest.mark.parametrize("dtype", ["u4,f4", "u4,O"]) + def test_resize_structured(self, dtype): + a = np.array([(0, 0.0) for i in range(5)], dtype=dtype) + a.resize(1000) + assert_array_equal(a, np.zeros(1000, dtype=dtype)) + + def test_error(self): + d = np.ones(100) + assert_raises(TypeError, d.__sizeof__, "a") + + +class TestHashing: + + def test_arrays_not_hashable(self): + x = np.ones(3) + assert_raises(TypeError, hash, x) + + def test_collections_hashable(self): + x = np.array([]) + assert_(not isinstance(x, collections.abc.Hashable)) + + +class TestArrayPriority: + # This will go away when __array_priority__ is settled, meanwhile + # it serves to check unintended changes. + op = operator + binary_ops = [ + op.pow, op.add, op.sub, op.mul, op.floordiv, op.truediv, op.mod, + op.and_, op.or_, op.xor, op.lshift, op.rshift, op.mod, op.gt, + op.ge, op.lt, op.le, op.ne, op.eq + ] + + class Foo(np.ndarray): + __array_priority__ = 100. + + def __new__(cls, *args, **kwargs): + return np.array(*args, **kwargs).view(cls) + + class Bar(np.ndarray): + __array_priority__ = 101. + + def __new__(cls, *args, **kwargs): + return np.array(*args, **kwargs).view(cls) + + class Other: + __array_priority__ = 1000. + + def _all(self, other): + return self.__class__() + + __add__ = __radd__ = _all + __sub__ = __rsub__ = _all + __mul__ = __rmul__ = _all + __pow__ = __rpow__ = _all + __mod__ = __rmod__ = _all + __truediv__ = __rtruediv__ = _all + __floordiv__ = __rfloordiv__ = _all + __and__ = __rand__ = _all + __xor__ = __rxor__ = _all + __or__ = __ror__ = _all + __lshift__ = __rlshift__ = _all + __rshift__ = __rrshift__ = _all + __eq__ = _all + __ne__ = _all + __gt__ = _all + __ge__ = _all + __lt__ = _all + __le__ = _all + + def test_ndarray_subclass(self): + a = np.array([1, 2]) + b = self.Bar([1, 2]) + for f in self.binary_ops: + msg = repr(f) + assert_(isinstance(f(a, b), self.Bar), msg) + assert_(isinstance(f(b, a), self.Bar), msg) + + def test_ndarray_other(self): + a = np.array([1, 2]) + b = self.Other() + for f in self.binary_ops: + msg = repr(f) + assert_(isinstance(f(a, b), self.Other), msg) + assert_(isinstance(f(b, a), self.Other), msg) + + def test_subclass_subclass(self): + a = self.Foo([1, 2]) + b = self.Bar([1, 2]) + for f in self.binary_ops: + msg = repr(f) + assert_(isinstance(f(a, b), self.Bar), msg) + assert_(isinstance(f(b, a), self.Bar), msg) + + def test_subclass_other(self): + a = self.Foo([1, 2]) + b = self.Other() + for f in self.binary_ops: + msg = repr(f) + assert_(isinstance(f(a, b), self.Other), msg) + assert_(isinstance(f(b, a), self.Other), msg) + + +class TestBytestringArrayNonzero: + + def test_empty_bstring_array_is_falsey(self): + assert_(not np.array([''], dtype=str)) + + def test_whitespace_bstring_array_is_truthy(self): + a = np.array(['spam'], dtype=str) + a[0] = ' \0\0' + assert_(a) + + def test_all_null_bstring_array_is_falsey(self): + a = np.array(['spam'], dtype=str) + a[0] = '\0\0\0\0' + assert_(not a) + + def test_null_inside_bstring_array_is_truthy(self): + a = np.array(['spam'], dtype=str) + a[0] = ' \0 \0' + assert_(a) + + +class TestUnicodeEncoding: + """ + Tests for encoding related bugs, such as UCS2 vs UCS4, round-tripping + issues, etc + """ + def test_round_trip(self): + """ Tests that GETITEM, SETITEM, and PyArray_Scalar roundtrip """ + # gh-15363 + arr = np.zeros(shape=(), dtype="U1") + for i in range(1, sys.maxunicode + 1): + expected = chr(i) + arr[()] = expected + assert arr[()] == expected + assert arr.item() == expected + + def test_assign_scalar(self): + # gh-3258 + l = np.array(['aa', 'bb']) + l[:] = np.str_('cc') + assert_equal(l, ['cc', 'cc']) + + def test_fill_scalar(self): + # gh-7227 + l = np.array(['aa', 'bb']) + l.fill(np.str_('cc')) + assert_equal(l, ['cc', 'cc']) + + +class TestUnicodeArrayNonzero: + + def test_empty_ustring_array_is_falsey(self): + assert_(not np.array([''], dtype=np.str_)) + + def test_whitespace_ustring_array_is_truthy(self): + a = np.array(['eggs'], dtype=np.str_) + a[0] = ' \0\0' + assert_(a) + + def test_all_null_ustring_array_is_falsey(self): + a = np.array(['eggs'], dtype=np.str_) + a[0] = '\0\0\0\0' + assert_(not a) + + def test_null_inside_ustring_array_is_truthy(self): + a = np.array(['eggs'], dtype=np.str_) + a[0] = ' \0 \0' + assert_(a) + + +class TestFormat: + + def test_0d(self): + a = np.array(np.pi) + assert_equal(f'{a:0.3g}', '3.14') + assert_equal(f'{a[()]:0.3g}', '3.14') + + def test_1d_no_format(self): + a = np.array([np.pi]) + assert_equal(f'{a}', str(a)) + + def test_1d_format(self): + # until gh-5543, ensure that the behaviour matches what it used to be + a = np.array([np.pi]) + assert_raises(TypeError, '{:30}'.format, a) + + +from numpy.testing import IS_PYPY + + +class TestCTypes: + + def test_ctypes_is_available(self): + test_arr = np.array([[1, 2, 3], [4, 5, 6]]) + + assert_equal(ctypes, test_arr.ctypes._ctypes) + assert_equal(tuple(test_arr.ctypes.shape), (2, 3)) + + @pytest.mark.thread_unsafe(reason="modifies global module state") + def test_ctypes_is_not_available(self): + from numpy._core import _internal + _internal.ctypes = None + try: + test_arr = np.array([[1, 2, 3], [4, 5, 6]]) + + assert_(isinstance(test_arr.ctypes._ctypes, + _internal._missing_ctypes)) + assert_equal(tuple(test_arr.ctypes.shape), (2, 3)) + finally: + _internal.ctypes = ctypes + + def _make_readonly(x): + x.flags.writeable = False + return x + + @pytest.mark.thread_unsafe(reason="calls gc.collect()") + @pytest.mark.parametrize('arr', [ + np.array([1, 2, 3]), + np.array([['one', 'two'], ['three', 'four']]), + np.array((1, 2), dtype='i4,i4'), + np.zeros((2,), dtype=np.dtype({ + "formats": [' 2, [44, 55]) + assert_equal(a, np.array([[0, 44], [1, 55], [2, 44]])) + # hit one of the failing paths + assert_raises(ValueError, np.place, a, a > 20, []) + + def test_put_noncontiguous(self): + a = np.arange(6).reshape(2, 3).T # force non-c-contiguous + np.put(a, [0, 2], [44, 55]) + assert_equal(a, np.array([[44, 3], [55, 4], [2, 5]])) + + def test_putmask_noncontiguous(self): + a = np.arange(6).reshape(2, 3).T # force non-c-contiguous + # uses arr_putmask + np.putmask(a, a > 2, a**2) + assert_equal(a, np.array([[0, 9], [1, 16], [2, 25]])) + + def test_take_mode_raise(self): + a = np.arange(6, dtype='int') + out = np.empty(2, dtype='int') + np.take(a, [0, 2], out=out, mode='raise') + assert_equal(out, np.array([0, 2])) + + def test_choose_mod_raise(self): + a = np.array([[1, 0, 1], [0, 1, 0], [1, 0, 1]]) + out = np.empty((3, 3), dtype='int') + choices = [-10, 10] + np.choose(a, choices, out=out, mode='raise') + assert_equal(out, np.array([[ 10, -10, 10], + [-10, 10, -10], + [ 10, -10, 10]])) + + def test_flatiter__array__(self): + a = np.arange(9).reshape(3, 3) + b = a.T.flat + c = b.__array__() + # triggers the WRITEBACKIFCOPY resolution, assuming refcount semantics + del c + + def test_dot_out(self): + # if HAVE_CBLAS, will use WRITEBACKIFCOPY + a = np.arange(9, dtype=float).reshape(3, 3) + b = np.dot(a, a, out=a) + assert_equal(b, np.array([[15, 18, 21], [42, 54, 66], [69, 90, 111]])) + + def test_view_assign(self): + from numpy._core._multiarray_tests import ( + npy_create_writebackifcopy, + npy_resolve, + ) + + arr = np.arange(9).reshape(3, 3).T + arr_wb = npy_create_writebackifcopy(arr) + assert_(arr_wb.flags.writebackifcopy) + assert_(arr_wb.base is arr) + arr_wb[...] = -100 + npy_resolve(arr_wb) + # arr changes after resolve, even though we assigned to arr_wb + assert_equal(arr, -100) + # after resolve, the two arrays no longer reference each other + assert_(arr_wb.ctypes.data != 0) + assert_equal(arr_wb.base, None) + # assigning to arr_wb does not get transferred to arr + arr_wb[...] = 100 + assert_equal(arr, -100) + + @pytest.mark.leaks_references( + reason="increments self in dealloc; ignore since deprecated path.") + def test_dealloc_warning(self): + arr = np.arange(9).reshape(3, 3) + v = arr.T + with pytest.warns(RuntimeWarning): + _multiarray_tests.npy_abuse_writebackifcopy(v) + + def test_view_discard_refcount(self): + from numpy._core._multiarray_tests import ( + npy_create_writebackifcopy, + npy_discard, + ) + + arr = np.arange(9).reshape(3, 3).T + orig = arr.copy() + if HAS_REFCOUNT: + arr_cnt = sys.getrefcount(arr) + arr_wb = npy_create_writebackifcopy(arr) + assert_(arr_wb.flags.writebackifcopy) + assert_(arr_wb.base is arr) + arr_wb[...] = -100 + npy_discard(arr_wb) + # arr remains unchanged after discard + assert_equal(arr, orig) + # after discard, the two arrays no longer reference each other + assert_(arr_wb.ctypes.data != 0) + assert_equal(arr_wb.base, None) + if HAS_REFCOUNT: + assert_equal(arr_cnt, sys.getrefcount(arr)) + # assigning to arr_wb does not get transferred to arr + arr_wb[...] = 100 + assert_equal(arr, orig) + + +class TestArange: + def test_infinite(self): + assert_raises_regex( + ValueError, "size exceeded", + np.arange, 0, np.inf + ) + + def test_nan_step(self): + assert_raises_regex( + ValueError, "cannot compute length", + np.arange, 0, 1, np.nan + ) + + def test_zero_step(self): + assert_raises(ZeroDivisionError, np.arange, 0, 10, 0) + assert_raises(ZeroDivisionError, np.arange, 0.0, 10.0, 0.0) + + # empty range + assert_raises(ZeroDivisionError, np.arange, 0, 0, 0) + assert_raises(ZeroDivisionError, np.arange, 0.0, 0.0, 0.0) + + def test_require_range(self): + assert_raises(TypeError, np.arange) + assert_raises(TypeError, np.arange, step=3) + assert_raises(TypeError, np.arange, dtype='int64') + assert_raises(TypeError, np.arange, start=4) + + def test_start_stop_kwarg(self): + keyword_stop = np.arange(stop=3) + keyword_zerotostop = np.arange(0, stop=3) + keyword_start_stop = np.arange(start=3, stop=9) + + assert len(keyword_stop) == 3 + assert len(keyword_zerotostop) == 3 + assert len(keyword_start_stop) == 6 + assert_array_equal(keyword_stop, keyword_zerotostop) + + def test_arange_booleans(self): + # Arange makes some sense for booleans and works up to length 2. + # But it is weird since `arange(2, 4, dtype=bool)` works. + # Arguably, much or all of this could be deprecated/removed. + res = np.arange(False, dtype=bool) + assert_array_equal(res, np.array([], dtype="bool")) + + res = np.arange(True, dtype="bool") + assert_array_equal(res, [False]) + + res = np.arange(2, dtype="bool") + assert_array_equal(res, [False, True]) + + # This case is especially weird, but drops out without special case: + res = np.arange(6, 8, dtype="bool") + assert_array_equal(res, [True, True]) + + with pytest.raises(TypeError): + np.arange(3, dtype="bool") + + @pytest.mark.parametrize("dtype", ["S3", "U", "5i"]) + def test_rejects_bad_dtypes(self, dtype): + dtype = np.dtype(dtype) + DType_name = re.escape(str(type(dtype))) + with pytest.raises(TypeError, + match=rf"arange\(\) not supported for inputs .* {DType_name}"): + np.arange(2, dtype=dtype) + + def test_rejects_strings(self): + # Explicitly test error for strings which may call "b" - "a": + DType_name = re.escape(str(type(np.array("a").dtype))) + with pytest.raises(TypeError, + match=rf"arange\(\) not supported for inputs .* {DType_name}"): + np.arange("a", "b") + + def test_byteswapped(self): + res_be = np.arange(1, 1000, dtype=">i4") + res_le = np.arange(1, 1000, dtype="i4" + assert res_le.dtype == " arr2 + + +@pytest.mark.parametrize("op", [ + operator.eq, operator.ne, operator.le, operator.lt, operator.ge, + operator.gt]) +def test_comparisons_forwards_error(op): + class NotArray: + def __array__(self, dtype=None, copy=None): + raise TypeError("run you fools") + + with pytest.raises(TypeError, match="run you fools"): + op(np.arange(2), NotArray()) + + with pytest.raises(TypeError, match="run you fools"): + op(NotArray(), np.arange(2)) + + +def test_richcompare_scalar_boolean_singleton_return(): + # These are currently guaranteed to be the boolean numpy singletons + assert (np.array(0) == "a") is np.bool_(False) + assert (np.array(0) != "a") is np.bool_(True) + assert (np.int16(0) == "a") is np.bool_(False) + assert (np.int16(0) != "a") is np.bool_(True) + + +@pytest.mark.parametrize("op", [ + operator.eq, operator.ne, operator.le, operator.lt, operator.ge, + operator.gt]) +def test_ragged_comparison_fails(op): + # This needs to convert the internal array to True/False, which fails: + a = np.array([1, np.array([1, 2, 3])], dtype=object) + b = np.array([1, np.array([1, 2, 3])], dtype=object) + + with pytest.raises(ValueError, match="The truth value.*ambiguous"): + op(a, b) + + +@pytest.mark.parametrize( + ["fun", "npfun"], + [ + (_multiarray_tests.npy_cabs, np.absolute), + (_multiarray_tests.npy_carg, np.angle) + ] +) +@pytest.mark.parametrize("x", [1, np.inf, -np.inf, np.nan]) +@pytest.mark.parametrize("y", [1, np.inf, -np.inf, np.nan]) +@pytest.mark.parametrize("test_dtype", np.complexfloating.__subclasses__()) +def test_npymath_complex(fun, npfun, x, y, test_dtype): + # Smoketest npymath functions + z = test_dtype(complex(x, y)) + with np.errstate(invalid='ignore'): + # Fallback implementations may emit a warning for +-inf (see gh-24876): + # RuntimeWarning: invalid value encountered in absolute + got = fun(z) + expected = npfun(z) + assert_allclose(got, expected) + + +def test_npymath_real(): + # Smoketest npymath functions + from numpy._core._multiarray_tests import ( + npy_cosh, + npy_log10, + npy_sinh, + npy_tan, + npy_tanh, + ) + + funcs = {npy_log10: np.log10, + npy_cosh: np.cosh, + npy_sinh: np.sinh, + npy_tan: np.tan, + npy_tanh: np.tanh} + vals = (1, np.inf, -np.inf, np.nan) + types = (np.float32, np.float64, np.longdouble) + + with np.errstate(all='ignore'): + for fun, npfun in funcs.items(): + for x, t in itertools.product(vals, types): + z = t(x) + got = fun(z) + expected = npfun(z) + assert_allclose(got, expected) + +def test_uintalignment_and_alignment(): + # alignment code needs to satisfy these requirements: + # 1. numpy structs match C struct layout + # 2. ufuncs/casting is safe wrt to aligned access + # 3. copy code is safe wrt to "uint alidned" access + # + # Complex types are the main problem, whose alignment may not be the same + # as their "uint alignment". + # + # This test might only fail on certain platforms, where uint64 alignment is + # not equal to complex64 alignment. The second 2 tests will only fail + # for DEBUG=1. + + d1 = np.dtype('u1,c8', align=True) + d2 = np.dtype('u4,c8', align=True) + d3 = np.dtype({'names': ['a', 'b'], 'formats': ['u1', d1]}, align=True) + + assert_equal(np.zeros(1, dtype=d1)['f1'].flags['ALIGNED'], True) + assert_equal(np.zeros(1, dtype=d2)['f1'].flags['ALIGNED'], True) + assert_equal(np.zeros(1, dtype='u1,c8')['f1'].flags['ALIGNED'], False) + + # check that C struct matches numpy struct size + s = _multiarray_tests.get_struct_alignments() + for d, (alignment, size) in zip([d1, d2, d3], s): + assert_equal(d.alignment, alignment) + assert_equal(d.itemsize, size) + + # check that ufuncs don't complain in debug mode + # (this is probably OK if the aligned flag is true above) + src = np.zeros((2, 2), dtype=d1)['f1'] # 4-byte aligned, often + np.exp(src) # assert fails? + + # check that copy code doesn't complain in debug mode + dst = np.zeros((2, 2), dtype='c8') + dst[:, 1] = src[:, 1] # assert in lowlevel_strided_loops fails? + +class TestAlignment: + # adapted from scipy._lib.tests.test__util.test__aligned_zeros + # Checks that unusual memory alignments don't trip up numpy. + + def check(self, shape, dtype, order, align): + err_msg = repr((shape, dtype, order, align)) + x = _aligned_zeros(shape, dtype, order, align=align) + if align is None: + align = np.dtype(dtype).alignment + assert_equal(x.__array_interface__['data'][0] % align, 0) + if hasattr(shape, '__len__'): + assert_equal(x.shape, shape, err_msg) + else: + assert_equal(x.shape, (shape,), err_msg) + assert_equal(x.dtype, dtype) + if order == "C": + assert_(x.flags.c_contiguous, err_msg) + elif order == "F": + if x.size > 0: + assert_(x.flags.f_contiguous, err_msg) + elif order is None: + assert_(x.flags.c_contiguous, err_msg) + else: + raise ValueError + + def test_various_alignments(self): + for align in [1, 2, 3, 4, 8, 12, 16, 32, 64, None]: + for n in [0, 1, 3, 11]: + for order in ["C", "F", None]: + for dtype in list(np.typecodes["All"]) + ['i4,i4,i4']: + if dtype == 'O': + # object dtype can't be misaligned + continue + for shape in [n, (1, 2, 3, n)]: + self.check(shape, np.dtype(dtype), order, align) + + def test_strided_loop_alignments(self): + # particularly test that complex64 and float128 use right alignment + # code-paths, since these are particularly problematic. It is useful to + # turn on USE_DEBUG for this test, so lowlevel-loop asserts are run. + for align in [1, 2, 4, 8, 12, 16, None]: + xf64 = _aligned_zeros(3, np.float64) + + xc64 = _aligned_zeros(3, np.complex64, align=align) + xf128 = _aligned_zeros(3, np.longdouble, align=align) + + # test casting, both to and from misaligned + with warnings.catch_warnings(): + warnings.filterwarnings('ignore', "Casting complex values", ComplexWarning) + xc64.astype('f8') + xf64.astype(np.complex64) + test = xc64 + xf64 + + xf128.astype('f8') + xf64.astype(np.longdouble) + test = xf128 + xf64 + + test = xf128 + xc64 + + # test copy, both to and from misaligned + # contig copy + xf64[:] = xf64.copy() + xc64[:] = xc64.copy() + xf128[:] = xf128.copy() + # strided copy + xf64[::2] = xf64[::2].copy() + xc64[::2] = xc64[::2].copy() + xf128[::2] = xf128[::2].copy() + +def test_getfield(): + a = np.arange(32, dtype='uint16') + if sys.byteorder == 'little': + i = 0 + j = 1 + else: + i = 1 + j = 0 + b = a.getfield('int8', i) + assert_equal(b, a) + b = a.getfield('int8', j) + assert_equal(b, 0) + pytest.raises(ValueError, a.getfield, 'uint8', -1) + pytest.raises(ValueError, a.getfield, 'uint8', 16) + pytest.raises(ValueError, a.getfield, 'uint64', 0) + +class TestViewDtype: + """ + Verify that making a view of a non-contiguous array works as expected. + """ + def test_smaller_dtype_multiple(self): + # x is non-contiguous + x = np.arange(10, dtype=' 10: + arrs.pop(0) + elif len(arrs) <= 10: + arrs.extend([np.array([1, 2, 3]) for _ in range(1000)]) + + def replace_list_items(b): + b.wait() + rng = np.random.RandomState() + rng.seed(0x4d3d3d3) + while done < 4: + data = rng.randint(0, 1000, size=4) + arrs[data[0]] = data[1:] + + for mutation_func in (replace_list_items, contract_and_expand_list): + b = threading.Barrier(5) + try: + with concurrent.futures.ThreadPoolExecutor(max_workers=5) as tpe: + tasks = [tpe.submit(read_arrs, b) for _ in range(4)] + tasks.append(tpe.submit(mutation_func, b)) + for t in tasks: + t.result() + except RuntimeError as e: + if outcome == "success": + raise + assert "Inconsistent object during array creation?" in str(e) + msg = "replace_list_items should not raise errors" + assert mutation_func is contract_and_expand_list, msg + finally: + if len(tasks) < 5: + b.abort() + +@pytest.mark.skipif(sys.version_info < (3, 12), reason="Python >= 3.12 required") +def test_array__buffer__thread_safety(): + import inspect + arr = np.arange(1000) + flags = [inspect.BufferFlags.STRIDED, inspect.BufferFlags.READ] + + def func(b): + b.wait() + for i in range(100): + arr.__buffer__(flags[i % 2]) + + run_threaded(func, max_workers=8, pass_barrier=True) + +@pytest.mark.skipif(sys.version_info < (3, 12), reason="Python >= 3.12 required") +def test_void_dtype__buffer__thread_safety(): + import inspect + dt = np.dtype([('name', np.str_, 16), ('grades', np.float64, (2,))]) + x = np.array(('ndarray_scalar', (1.2, 3.0)), dtype=dt)[()] + assert isinstance(x, np.void) + flags = [inspect.BufferFlags.STRIDES, inspect.BufferFlags.READ] + + def func(b): + b.wait() + for i in range(100): + x.__buffer__(flags[i % 2]) + + run_threaded(func, max_workers=8, pass_barrier=True) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_nditer.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_nditer.py new file mode 100644 index 0000000000000000000000000000000000000000..d2fc69a03b5f6525a710a6191d16f7e29347006b --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_nditer.py @@ -0,0 +1,3533 @@ +import inspect +import subprocess +import sys +import textwrap +import warnings + +import pytest + +import numpy as np +import numpy._core._multiarray_tests as _multiarray_tests +import numpy._core.umath as ncu +from numpy import all, arange, array, nditer +from numpy.testing import ( + HAS_REFCOUNT, + IS_64BIT, + IS_PYPY, + IS_WASM, + assert_, + assert_array_equal, + assert_equal, + assert_raises, +) +from numpy.testing._private.utils import requires_memory + + +def iter_multi_index(i): + ret = [] + while not i.finished: + ret.append(i.multi_index) + i.iternext() + return ret + +def iter_indices(i): + ret = [] + while not i.finished: + ret.append(i.index) + i.iternext() + return ret + +def iter_iterindices(i): + ret = [] + while not i.finished: + ret.append(i.iterindex) + i.iternext() + return ret + +@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") +def test_iter_refcount(): + # Make sure the iterator doesn't leak + + # Basic + a = arange(6) + dt = np.dtype('f4').newbyteorder() + rc_a = sys.getrefcount(a) + rc_dt = sys.getrefcount(dt) + with nditer(a, [], + [['readwrite', 'updateifcopy']], + casting='unsafe', + op_dtypes=[dt]) as it: + assert_(not it.iterationneedsapi) + assert_(sys.getrefcount(a) > rc_a) + assert_(sys.getrefcount(dt) > rc_dt) + # del 'it' + it = None + assert_equal(sys.getrefcount(a), rc_a) + assert_equal(sys.getrefcount(dt), rc_dt) + + # With a copy + a = arange(6, dtype='f4') + dt = np.dtype('f4') + rc_a = sys.getrefcount(a) + rc_dt = sys.getrefcount(dt) + it = nditer(a, [], + [['readwrite']], + op_dtypes=[dt]) + rc2_a = sys.getrefcount(a) + rc2_dt = sys.getrefcount(dt) + it2 = it.copy() + assert_(sys.getrefcount(a) > rc2_a) + if sys.version_info < (3, 13): + # np.dtype('f4') is immortal after Python 3.13 + assert_(sys.getrefcount(dt) > rc2_dt) + it = None + assert_equal(sys.getrefcount(a), rc2_a) + assert_equal(sys.getrefcount(dt), rc2_dt) + it2 = None + assert_equal(sys.getrefcount(a), rc_a) + assert_equal(sys.getrefcount(dt), rc_dt) + +def test_iter_best_order(): + # The iterator should always find the iteration order + # with increasing memory addresses + + # Test the ordering for 1-D to 5-D shapes + for shape in [(5,), (3, 4), (2, 3, 4), (2, 3, 4, 3), (2, 3, 2, 2, 3)]: + a = arange(np.prod(shape)) + # Test each combination of positive and negative strides + for dirs in range(2**len(shape)): + dirs_index = [slice(None)] * len(shape) + for bit in range(len(shape)): + if ((2**bit) & dirs): + dirs_index[bit] = slice(None, None, -1) + dirs_index = tuple(dirs_index) + + aview = a.reshape(shape)[dirs_index] + # C-order + i = nditer(aview, [], [['readonly']]) + assert_equal(list(i), a) + # Fortran-order + i = nditer(aview.T, [], [['readonly']]) + assert_equal(list(i), a) + # Other order + if len(shape) > 2: + i = nditer(aview.swapaxes(0, 1), [], [['readonly']]) + assert_equal(list(i), a) + +def test_iter_c_order(): + # Test forcing C order + + # Test the ordering for 1-D to 5-D shapes + for shape in [(5,), (3, 4), (2, 3, 4), (2, 3, 4, 3), (2, 3, 2, 2, 3)]: + a = arange(np.prod(shape)) + # Test each combination of positive and negative strides + for dirs in range(2**len(shape)): + dirs_index = [slice(None)] * len(shape) + for bit in range(len(shape)): + if ((2**bit) & dirs): + dirs_index[bit] = slice(None, None, -1) + dirs_index = tuple(dirs_index) + + aview = a.reshape(shape)[dirs_index] + # C-order + i = nditer(aview, order='C') + assert_equal(list(i), aview.ravel(order='C')) + # Fortran-order + i = nditer(aview.T, order='C') + assert_equal(list(i), aview.T.ravel(order='C')) + # Other order + if len(shape) > 2: + i = nditer(aview.swapaxes(0, 1), order='C') + assert_equal(list(i), + aview.swapaxes(0, 1).ravel(order='C')) + +def test_iter_f_order(): + # Test forcing F order + + # Test the ordering for 1-D to 5-D shapes + for shape in [(5,), (3, 4), (2, 3, 4), (2, 3, 4, 3), (2, 3, 2, 2, 3)]: + a = arange(np.prod(shape)) + # Test each combination of positive and negative strides + for dirs in range(2**len(shape)): + dirs_index = [slice(None)] * len(shape) + for bit in range(len(shape)): + if ((2**bit) & dirs): + dirs_index[bit] = slice(None, None, -1) + dirs_index = tuple(dirs_index) + + aview = a.reshape(shape)[dirs_index] + # C-order + i = nditer(aview, order='F') + assert_equal(list(i), aview.ravel(order='F')) + # Fortran-order + i = nditer(aview.T, order='F') + assert_equal(list(i), aview.T.ravel(order='F')) + # Other order + if len(shape) > 2: + i = nditer(aview.swapaxes(0, 1), order='F') + assert_equal(list(i), + aview.swapaxes(0, 1).ravel(order='F')) + +def test_iter_c_or_f_order(): + # Test forcing any contiguous (C or F) order + + # Test the ordering for 1-D to 5-D shapes + for shape in [(5,), (3, 4), (2, 3, 4), (2, 3, 4, 3), (2, 3, 2, 2, 3)]: + a = arange(np.prod(shape)) + # Test each combination of positive and negative strides + for dirs in range(2**len(shape)): + dirs_index = [slice(None)] * len(shape) + for bit in range(len(shape)): + if ((2**bit) & dirs): + dirs_index[bit] = slice(None, None, -1) + dirs_index = tuple(dirs_index) + + aview = a.reshape(shape)[dirs_index] + # C-order + i = nditer(aview, order='A') + assert_equal(list(i), aview.ravel(order='A')) + # Fortran-order + i = nditer(aview.T, order='A') + assert_equal(list(i), aview.T.ravel(order='A')) + # Other order + if len(shape) > 2: + i = nditer(aview.swapaxes(0, 1), order='A') + assert_equal(list(i), + aview.swapaxes(0, 1).ravel(order='A')) + +def test_nditer_multi_index_set(): + # Test the multi_index set + a = np.arange(6).reshape(2, 3) + it = np.nditer(a, flags=['multi_index']) + + # Removes the iteration on two first elements of a[0] + it.multi_index = (0, 2,) + + assert_equal(list(it), [2, 3, 4, 5]) + +@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") +def test_nditer_multi_index_set_refcount(): + # Test if the reference count on index variable is decreased + + index = 0 + i = np.nditer(np.array([111, 222, 333, 444]), flags=['multi_index']) + + start_count = sys.getrefcount(index) + i.multi_index = (index,) + end_count = sys.getrefcount(index) + + assert_equal(start_count, end_count) + +def test_iter_best_order_multi_index_1d(): + # The multi-indices should be correct with any reordering + + a = arange(4) + # 1D order + i = nditer(a, ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), [(0,), (1,), (2,), (3,)]) + # 1D reversed order + i = nditer(a[::-1], ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), [(3,), (2,), (1,), (0,)]) + +def test_iter_best_order_multi_index_2d(): + # The multi-indices should be correct with any reordering + + a = arange(6) + # 2D C-order + i = nditer(a.reshape(2, 3), ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), [(0, 0), (0, 1), (0, 2), (1, 0), (1, 1), (1, 2)]) + # 2D Fortran-order + i = nditer(a.reshape(2, 3).copy(order='F'), ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), [(0, 0), (1, 0), (0, 1), (1, 1), (0, 2), (1, 2)]) + # 2D reversed C-order + i = nditer(a.reshape(2, 3)[::-1], ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), [(1, 0), (1, 1), (1, 2), (0, 0), (0, 1), (0, 2)]) + i = nditer(a.reshape(2, 3)[:, ::-1], ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), [(0, 2), (0, 1), (0, 0), (1, 2), (1, 1), (1, 0)]) + i = nditer(a.reshape(2, 3)[::-1, ::-1], ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), [(1, 2), (1, 1), (1, 0), (0, 2), (0, 1), (0, 0)]) + # 2D reversed Fortran-order + i = nditer(a.reshape(2, 3).copy(order='F')[::-1], ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), [(1, 0), (0, 0), (1, 1), (0, 1), (1, 2), (0, 2)]) + i = nditer(a.reshape(2, 3).copy(order='F')[:, ::-1], + ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), [(0, 2), (1, 2), (0, 1), (1, 1), (0, 0), (1, 0)]) + i = nditer(a.reshape(2, 3).copy(order='F')[::-1, ::-1], + ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), [(1, 2), (0, 2), (1, 1), (0, 1), (1, 0), (0, 0)]) + +def test_iter_best_order_multi_index_3d(): + # The multi-indices should be correct with any reordering + + a = arange(12) + # 3D C-order + i = nditer(a.reshape(2, 3, 2), ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), + [(0, 0, 0), (0, 0, 1), (0, 1, 0), (0, 1, 1), (0, 2, 0), (0, 2, 1), + (1, 0, 0), (1, 0, 1), (1, 1, 0), (1, 1, 1), (1, 2, 0), (1, 2, 1)]) + # 3D Fortran-order + i = nditer(a.reshape(2, 3, 2).copy(order='F'), ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), + [(0, 0, 0), (1, 0, 0), (0, 1, 0), (1, 1, 0), (0, 2, 0), (1, 2, 0), + (0, 0, 1), (1, 0, 1), (0, 1, 1), (1, 1, 1), (0, 2, 1), (1, 2, 1)]) + # 3D reversed C-order + i = nditer(a.reshape(2, 3, 2)[::-1], ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), + [(1, 0, 0), (1, 0, 1), (1, 1, 0), (1, 1, 1), (1, 2, 0), (1, 2, 1), + (0, 0, 0), (0, 0, 1), (0, 1, 0), (0, 1, 1), (0, 2, 0), (0, 2, 1)]) + i = nditer(a.reshape(2, 3, 2)[:, ::-1], ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), + [(0, 2, 0), (0, 2, 1), (0, 1, 0), (0, 1, 1), (0, 0, 0), (0, 0, 1), + (1, 2, 0), (1, 2, 1), (1, 1, 0), (1, 1, 1), (1, 0, 0), (1, 0, 1)]) + i = nditer(a.reshape(2, 3, 2)[:, :, ::-1], ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), + [(0, 0, 1), (0, 0, 0), (0, 1, 1), (0, 1, 0), (0, 2, 1), (0, 2, 0), + (1, 0, 1), (1, 0, 0), (1, 1, 1), (1, 1, 0), (1, 2, 1), (1, 2, 0)]) + # 3D reversed Fortran-order + i = nditer(a.reshape(2, 3, 2).copy(order='F')[::-1], + ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), + [(1, 0, 0), (0, 0, 0), (1, 1, 0), (0, 1, 0), (1, 2, 0), (0, 2, 0), + (1, 0, 1), (0, 0, 1), (1, 1, 1), (0, 1, 1), (1, 2, 1), (0, 2, 1)]) + i = nditer(a.reshape(2, 3, 2).copy(order='F')[:, ::-1], + ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), + [(0, 2, 0), (1, 2, 0), (0, 1, 0), (1, 1, 0), (0, 0, 0), (1, 0, 0), + (0, 2, 1), (1, 2, 1), (0, 1, 1), (1, 1, 1), (0, 0, 1), (1, 0, 1)]) + i = nditer(a.reshape(2, 3, 2).copy(order='F')[:, :, ::-1], + ['multi_index'], [['readonly']]) + assert_equal(iter_multi_index(i), + [(0, 0, 1), (1, 0, 1), (0, 1, 1), (1, 1, 1), (0, 2, 1), (1, 2, 1), + (0, 0, 0), (1, 0, 0), (0, 1, 0), (1, 1, 0), (0, 2, 0), (1, 2, 0)]) + +def test_iter_best_order_c_index_1d(): + # The C index should be correct with any reordering + + a = arange(4) + # 1D order + i = nditer(a, ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), [0, 1, 2, 3]) + # 1D reversed order + i = nditer(a[::-1], ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), [3, 2, 1, 0]) + +def test_iter_best_order_c_index_2d(): + # The C index should be correct with any reordering + + a = arange(6) + # 2D C-order + i = nditer(a.reshape(2, 3), ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), [0, 1, 2, 3, 4, 5]) + # 2D Fortran-order + i = nditer(a.reshape(2, 3).copy(order='F'), + ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), [0, 3, 1, 4, 2, 5]) + # 2D reversed C-order + i = nditer(a.reshape(2, 3)[::-1], ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), [3, 4, 5, 0, 1, 2]) + i = nditer(a.reshape(2, 3)[:, ::-1], ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), [2, 1, 0, 5, 4, 3]) + i = nditer(a.reshape(2, 3)[::-1, ::-1], ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), [5, 4, 3, 2, 1, 0]) + # 2D reversed Fortran-order + i = nditer(a.reshape(2, 3).copy(order='F')[::-1], + ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), [3, 0, 4, 1, 5, 2]) + i = nditer(a.reshape(2, 3).copy(order='F')[:, ::-1], + ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), [2, 5, 1, 4, 0, 3]) + i = nditer(a.reshape(2, 3).copy(order='F')[::-1, ::-1], + ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), [5, 2, 4, 1, 3, 0]) + +def test_iter_best_order_c_index_3d(): + # The C index should be correct with any reordering + + a = arange(12) + # 3D C-order + i = nditer(a.reshape(2, 3, 2), ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), + [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]) + # 3D Fortran-order + i = nditer(a.reshape(2, 3, 2).copy(order='F'), + ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), + [0, 6, 2, 8, 4, 10, 1, 7, 3, 9, 5, 11]) + # 3D reversed C-order + i = nditer(a.reshape(2, 3, 2)[::-1], ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), + [6, 7, 8, 9, 10, 11, 0, 1, 2, 3, 4, 5]) + i = nditer(a.reshape(2, 3, 2)[:, ::-1], ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), + [4, 5, 2, 3, 0, 1, 10, 11, 8, 9, 6, 7]) + i = nditer(a.reshape(2, 3, 2)[:, :, ::-1], ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), + [1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10]) + # 3D reversed Fortran-order + i = nditer(a.reshape(2, 3, 2).copy(order='F')[::-1], + ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), + [6, 0, 8, 2, 10, 4, 7, 1, 9, 3, 11, 5]) + i = nditer(a.reshape(2, 3, 2).copy(order='F')[:, ::-1], + ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), + [4, 10, 2, 8, 0, 6, 5, 11, 3, 9, 1, 7]) + i = nditer(a.reshape(2, 3, 2).copy(order='F')[:, :, ::-1], + ['c_index'], [['readonly']]) + assert_equal(iter_indices(i), + [1, 7, 3, 9, 5, 11, 0, 6, 2, 8, 4, 10]) + +def test_iter_best_order_f_index_1d(): + # The Fortran index should be correct with any reordering + + a = arange(4) + # 1D order + i = nditer(a, ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), [0, 1, 2, 3]) + # 1D reversed order + i = nditer(a[::-1], ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), [3, 2, 1, 0]) + +def test_iter_best_order_f_index_2d(): + # The Fortran index should be correct with any reordering + + a = arange(6) + # 2D C-order + i = nditer(a.reshape(2, 3), ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), [0, 2, 4, 1, 3, 5]) + # 2D Fortran-order + i = nditer(a.reshape(2, 3).copy(order='F'), + ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), [0, 1, 2, 3, 4, 5]) + # 2D reversed C-order + i = nditer(a.reshape(2, 3)[::-1], ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), [1, 3, 5, 0, 2, 4]) + i = nditer(a.reshape(2, 3)[:, ::-1], ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), [4, 2, 0, 5, 3, 1]) + i = nditer(a.reshape(2, 3)[::-1, ::-1], ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), [5, 3, 1, 4, 2, 0]) + # 2D reversed Fortran-order + i = nditer(a.reshape(2, 3).copy(order='F')[::-1], + ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), [1, 0, 3, 2, 5, 4]) + i = nditer(a.reshape(2, 3).copy(order='F')[:, ::-1], + ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), [4, 5, 2, 3, 0, 1]) + i = nditer(a.reshape(2, 3).copy(order='F')[::-1, ::-1], + ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), [5, 4, 3, 2, 1, 0]) + +def test_iter_best_order_f_index_3d(): + # The Fortran index should be correct with any reordering + + a = arange(12) + # 3D C-order + i = nditer(a.reshape(2, 3, 2), ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), + [0, 6, 2, 8, 4, 10, 1, 7, 3, 9, 5, 11]) + # 3D Fortran-order + i = nditer(a.reshape(2, 3, 2).copy(order='F'), + ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), + [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]) + # 3D reversed C-order + i = nditer(a.reshape(2, 3, 2)[::-1], ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), + [1, 7, 3, 9, 5, 11, 0, 6, 2, 8, 4, 10]) + i = nditer(a.reshape(2, 3, 2)[:, ::-1], ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), + [4, 10, 2, 8, 0, 6, 5, 11, 3, 9, 1, 7]) + i = nditer(a.reshape(2, 3, 2)[:, :, ::-1], ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), + [6, 0, 8, 2, 10, 4, 7, 1, 9, 3, 11, 5]) + # 3D reversed Fortran-order + i = nditer(a.reshape(2, 3, 2).copy(order='F')[::-1], + ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), + [1, 0, 3, 2, 5, 4, 7, 6, 9, 8, 11, 10]) + i = nditer(a.reshape(2, 3, 2).copy(order='F')[:, ::-1], + ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), + [4, 5, 2, 3, 0, 1, 10, 11, 8, 9, 6, 7]) + i = nditer(a.reshape(2, 3, 2).copy(order='F')[:, :, ::-1], + ['f_index'], [['readonly']]) + assert_equal(iter_indices(i), + [6, 7, 8, 9, 10, 11, 0, 1, 2, 3, 4, 5]) + +def test_iter_no_inner_full_coalesce(): + # Check no_inner iterators which coalesce into a single inner loop + + for shape in [(5,), (3, 4), (2, 3, 4), (2, 3, 4, 3), (2, 3, 2, 2, 3)]: + size = np.prod(shape) + a = arange(size) + # Test each combination of forward and backwards indexing + for dirs in range(2**len(shape)): + dirs_index = [slice(None)] * len(shape) + for bit in range(len(shape)): + if ((2**bit) & dirs): + dirs_index[bit] = slice(None, None, -1) + dirs_index = tuple(dirs_index) + + aview = a.reshape(shape)[dirs_index] + # C-order + i = nditer(aview, ['external_loop'], [['readonly']]) + assert_equal(i.ndim, 1) + assert_equal(i[0].shape, (size,)) + # Fortran-order + i = nditer(aview.T, ['external_loop'], [['readonly']]) + assert_equal(i.ndim, 1) + assert_equal(i[0].shape, (size,)) + # Other order + if len(shape) > 2: + i = nditer(aview.swapaxes(0, 1), + ['external_loop'], [['readonly']]) + assert_equal(i.ndim, 1) + assert_equal(i[0].shape, (size,)) + +def test_iter_no_inner_dim_coalescing(): + # Check no_inner iterators whose dimensions may not coalesce completely + + # Skipping the last element in a dimension prevents coalescing + # with the next-bigger dimension + a = arange(24).reshape(2, 3, 4)[:, :, :-1] + i = nditer(a, ['external_loop'], [['readonly']]) + assert_equal(i.ndim, 2) + assert_equal(i[0].shape, (3,)) + a = arange(24).reshape(2, 3, 4)[:, :-1, :] + i = nditer(a, ['external_loop'], [['readonly']]) + assert_equal(i.ndim, 2) + assert_equal(i[0].shape, (8,)) + a = arange(24).reshape(2, 3, 4)[:-1, :, :] + i = nditer(a, ['external_loop'], [['readonly']]) + assert_equal(i.ndim, 1) + assert_equal(i[0].shape, (12,)) + + # Even with lots of 1-sized dimensions, should still coalesce + a = arange(24).reshape(1, 1, 2, 1, 1, 3, 1, 1, 4, 1, 1) + i = nditer(a, ['external_loop'], [['readonly']]) + assert_equal(i.ndim, 1) + assert_equal(i[0].shape, (24,)) + +def test_iter_dim_coalescing(): + # Check that the correct number of dimensions are coalesced + + # Tracking a multi-index disables coalescing + a = arange(24).reshape(2, 3, 4) + i = nditer(a, ['multi_index'], [['readonly']]) + assert_equal(i.ndim, 3) + + # A tracked index can allow coalescing if it's compatible with the array + a3d = arange(24).reshape(2, 3, 4) + i = nditer(a3d, ['c_index'], [['readonly']]) + assert_equal(i.ndim, 1) + i = nditer(a3d.swapaxes(0, 1), ['c_index'], [['readonly']]) + assert_equal(i.ndim, 3) + i = nditer(a3d.T, ['c_index'], [['readonly']]) + assert_equal(i.ndim, 3) + i = nditer(a3d.T, ['f_index'], [['readonly']]) + assert_equal(i.ndim, 1) + i = nditer(a3d.T.swapaxes(0, 1), ['f_index'], [['readonly']]) + assert_equal(i.ndim, 3) + + # When C or F order is forced, coalescing may still occur + a3d = arange(24).reshape(2, 3, 4) + i = nditer(a3d, order='C') + assert_equal(i.ndim, 1) + i = nditer(a3d.T, order='C') + assert_equal(i.ndim, 3) + i = nditer(a3d, order='F') + assert_equal(i.ndim, 3) + i = nditer(a3d.T, order='F') + assert_equal(i.ndim, 1) + i = nditer(a3d, order='A') + assert_equal(i.ndim, 1) + i = nditer(a3d.T, order='A') + assert_equal(i.ndim, 1) + +def test_iter_broadcasting(): + # Standard NumPy broadcasting rules + + # 1D with scalar + i = nditer([arange(6), np.int32(2)], ['multi_index'], [['readonly']] * 2) + assert_equal(i.itersize, 6) + assert_equal(i.shape, (6,)) + + # 2D with scalar + i = nditer([arange(6).reshape(2, 3), np.int32(2)], + ['multi_index'], [['readonly']] * 2) + assert_equal(i.itersize, 6) + assert_equal(i.shape, (2, 3)) + # 2D with 1D + i = nditer([arange(6).reshape(2, 3), arange(3)], + ['multi_index'], [['readonly']] * 2) + assert_equal(i.itersize, 6) + assert_equal(i.shape, (2, 3)) + i = nditer([arange(2).reshape(2, 1), arange(3)], + ['multi_index'], [['readonly']] * 2) + assert_equal(i.itersize, 6) + assert_equal(i.shape, (2, 3)) + # 2D with 2D + i = nditer([arange(2).reshape(2, 1), arange(3).reshape(1, 3)], + ['multi_index'], [['readonly']] * 2) + assert_equal(i.itersize, 6) + assert_equal(i.shape, (2, 3)) + + # 3D with scalar + i = nditer([np.int32(2), arange(24).reshape(4, 2, 3)], + ['multi_index'], [['readonly']] * 2) + assert_equal(i.itersize, 24) + assert_equal(i.shape, (4, 2, 3)) + # 3D with 1D + i = nditer([arange(3), arange(24).reshape(4, 2, 3)], + ['multi_index'], [['readonly']] * 2) + assert_equal(i.itersize, 24) + assert_equal(i.shape, (4, 2, 3)) + i = nditer([arange(3), arange(8).reshape(4, 2, 1)], + ['multi_index'], [['readonly']] * 2) + assert_equal(i.itersize, 24) + assert_equal(i.shape, (4, 2, 3)) + # 3D with 2D + i = nditer([arange(6).reshape(2, 3), arange(24).reshape(4, 2, 3)], + ['multi_index'], [['readonly']] * 2) + assert_equal(i.itersize, 24) + assert_equal(i.shape, (4, 2, 3)) + i = nditer([arange(2).reshape(2, 1), arange(24).reshape(4, 2, 3)], + ['multi_index'], [['readonly']] * 2) + assert_equal(i.itersize, 24) + assert_equal(i.shape, (4, 2, 3)) + i = nditer([arange(3).reshape(1, 3), arange(8).reshape(4, 2, 1)], + ['multi_index'], [['readonly']] * 2) + assert_equal(i.itersize, 24) + assert_equal(i.shape, (4, 2, 3)) + # 3D with 3D + i = nditer([arange(2).reshape(1, 2, 1), arange(3).reshape(1, 1, 3), + arange(4).reshape(4, 1, 1)], + ['multi_index'], [['readonly']] * 3) + assert_equal(i.itersize, 24) + assert_equal(i.shape, (4, 2, 3)) + i = nditer([arange(6).reshape(1, 2, 3), arange(4).reshape(4, 1, 1)], + ['multi_index'], [['readonly']] * 2) + assert_equal(i.itersize, 24) + assert_equal(i.shape, (4, 2, 3)) + i = nditer([arange(24).reshape(4, 2, 3), arange(12).reshape(4, 1, 3)], + ['multi_index'], [['readonly']] * 2) + assert_equal(i.itersize, 24) + assert_equal(i.shape, (4, 2, 3)) + +def test_iter_itershape(): + # Check that allocated outputs work with a specified shape + a = np.arange(6, dtype='i2').reshape(2, 3) + i = nditer([a, None], [], [['readonly'], ['writeonly', 'allocate']], + op_axes=[[0, 1, None], None], + itershape=(-1, -1, 4)) + assert_equal(i.operands[1].shape, (2, 3, 4)) + assert_equal(i.operands[1].strides, (24, 8, 2)) + + i = nditer([a.T, None], [], [['readonly'], ['writeonly', 'allocate']], + op_axes=[[0, 1, None], None], + itershape=(-1, -1, 4)) + assert_equal(i.operands[1].shape, (3, 2, 4)) + assert_equal(i.operands[1].strides, (8, 24, 2)) + + i = nditer([a.T, None], [], [['readonly'], ['writeonly', 'allocate']], + order='F', + op_axes=[[0, 1, None], None], + itershape=(-1, -1, 4)) + assert_equal(i.operands[1].shape, (3, 2, 4)) + assert_equal(i.operands[1].strides, (2, 6, 12)) + + # If we specify 1 in the itershape, it shouldn't allow broadcasting + # of that dimension to a bigger value + assert_raises(ValueError, nditer, [a, None], [], + [['readonly'], ['writeonly', 'allocate']], + op_axes=[[0, 1, None], None], + itershape=(-1, 1, 4)) + # Test bug that for no op_axes but itershape, they are NULLed correctly + i = np.nditer([np.ones(2), None, None], itershape=(2,)) + +def test_iter_broadcasting_errors(): + # Check that errors are thrown for bad broadcasting shapes + + # 1D with 1D + assert_raises(ValueError, nditer, [arange(2), arange(3)], + [], [['readonly']] * 2) + # 2D with 1D + assert_raises(ValueError, nditer, + [arange(6).reshape(2, 3), arange(2)], + [], [['readonly']] * 2) + # 2D with 2D + assert_raises(ValueError, nditer, + [arange(6).reshape(2, 3), arange(9).reshape(3, 3)], + [], [['readonly']] * 2) + assert_raises(ValueError, nditer, + [arange(6).reshape(2, 3), arange(4).reshape(2, 2)], + [], [['readonly']] * 2) + # 3D with 3D + assert_raises(ValueError, nditer, + [arange(36).reshape(3, 3, 4), arange(24).reshape(2, 3, 4)], + [], [['readonly']] * 2) + assert_raises(ValueError, nditer, + [arange(8).reshape(2, 4, 1), arange(24).reshape(2, 3, 4)], + [], [['readonly']] * 2) + + # Verify that the error message mentions the right shapes + try: + nditer([arange(2).reshape(1, 2, 1), + arange(3).reshape(1, 3), + arange(6).reshape(2, 3)], + [], + [['readonly'], ['readonly'], ['writeonly', 'no_broadcast']]) + raise AssertionError('Should have raised a broadcast error') + except ValueError as e: + msg = str(e) + # The message should contain the shape of the 3rd operand + assert_(msg.find('(2,3)') >= 0, + f'Message "{msg}" doesn\'t contain operand shape (2,3)') + # The message should contain the broadcast shape + assert_(msg.find('(1,2,3)') >= 0, + f'Message "{msg}" doesn\'t contain broadcast shape (1,2,3)') + + try: + nditer([arange(6).reshape(2, 3), arange(2)], + [], + [['readonly'], ['readonly']], + op_axes=[[0, 1], [0, np.newaxis]], + itershape=(4, 3)) + raise AssertionError('Should have raised a broadcast error') + except ValueError as e: + msg = str(e) + # The message should contain "shape->remappedshape" for each operand + assert_(msg.find('(2,3)->(2,3)') >= 0, + f'Message "{msg}" doesn\'t contain operand shape (2,3)->(2,3)') + assert_(msg.find('(2,)->(2,newaxis)') >= 0, + ('Message "%s" doesn\'t contain remapped operand shape' + '(2,)->(2,newaxis)') % msg) + # The message should contain the itershape parameter + assert_(msg.find('(4,3)') >= 0, + f'Message "{msg}" doesn\'t contain itershape parameter (4,3)') + + try: + nditer([np.zeros((2, 1, 1)), np.zeros((2,))], + [], + [['writeonly', 'no_broadcast'], ['readonly']]) + raise AssertionError('Should have raised a broadcast error') + except ValueError as e: + msg = str(e) + # The message should contain the shape of the bad operand + assert_(msg.find('(2,1,1)') >= 0, + f'Message "{msg}" doesn\'t contain operand shape (2,1,1)') + # The message should contain the broadcast shape + assert_(msg.find('(2,1,2)') >= 0, + f'Message "{msg}" doesn\'t contain the broadcast shape (2,1,2)') + +def test_iter_flags_errors(): + # Check that bad combinations of flags produce errors + + a = arange(6) + + # Not enough operands + assert_raises(ValueError, nditer, [], [], []) + # Bad global flag + assert_raises(ValueError, nditer, [a], ['bad flag'], [['readonly']]) + # Bad op flag + assert_raises(ValueError, nditer, [a], [], [['readonly', 'bad flag']]) + # Bad order parameter + assert_raises(ValueError, nditer, [a], [], [['readonly']], order='G') + # Bad casting parameter + assert_raises(ValueError, nditer, [a], [], [['readonly']], casting='noon') + # op_flags must match ops + assert_raises(ValueError, nditer, [a] * 3, [], [['readonly']] * 2) + # Cannot track both a C and an F index + assert_raises(ValueError, nditer, a, + ['c_index', 'f_index'], [['readonly']]) + # Inner iteration and multi-indices/indices are incompatible + assert_raises(ValueError, nditer, a, + ['external_loop', 'multi_index'], [['readonly']]) + assert_raises(ValueError, nditer, a, + ['external_loop', 'c_index'], [['readonly']]) + assert_raises(ValueError, nditer, a, + ['external_loop', 'f_index'], [['readonly']]) + # Must specify exactly one of readwrite/readonly/writeonly per operand + assert_raises(ValueError, nditer, a, [], [[]]) + assert_raises(ValueError, nditer, a, [], [['readonly', 'writeonly']]) + assert_raises(ValueError, nditer, a, [], [['readonly', 'readwrite']]) + assert_raises(ValueError, nditer, a, [], [['writeonly', 'readwrite']]) + assert_raises(ValueError, nditer, a, + [], [['readonly', 'writeonly', 'readwrite']]) + # Python scalars are always readonly + assert_raises(TypeError, nditer, 1.5, [], [['writeonly']]) + assert_raises(TypeError, nditer, 1.5, [], [['readwrite']]) + # Array scalars are always readonly + assert_raises(TypeError, nditer, np.int32(1), [], [['writeonly']]) + assert_raises(TypeError, nditer, np.int32(1), [], [['readwrite']]) + # Check readonly array + a.flags.writeable = False + assert_raises(ValueError, nditer, a, [], [['writeonly']]) + assert_raises(ValueError, nditer, a, [], [['readwrite']]) + a.flags.writeable = True + # Multi-indices available only with the multi_index flag + i = nditer(arange(6), [], [['readonly']]) + assert_raises(ValueError, lambda i: i.multi_index, i) + # Index available only with an index flag + assert_raises(ValueError, lambda i: i.index, i) + # GotoCoords and GotoIndex incompatible with buffering or no_inner + + def assign_multi_index(i): + i.multi_index = (0,) + + def assign_index(i): + i.index = 0 + + def assign_iterindex(i): + i.iterindex = 0 + + def assign_iterrange(i): + i.iterrange = (0, 1) + i = nditer(arange(6), ['external_loop']) + assert_raises(ValueError, assign_multi_index, i) + assert_raises(ValueError, assign_index, i) + assert_raises(ValueError, assign_iterindex, i) + assert_raises(ValueError, assign_iterrange, i) + i = nditer(arange(6), ['buffered']) + assert_raises(ValueError, assign_multi_index, i) + assert_raises(ValueError, assign_index, i) + assert_raises(ValueError, assign_iterrange, i) + # Can't iterate if size is zero + assert_raises(ValueError, nditer, np.array([])) + +def test_iter_slice(): + a, b, c = np.arange(3), np.arange(3), np.arange(3.) + i = nditer([a, b, c], [], ['readwrite']) + with i: + i[0:2] = (3, 3) + assert_equal(a, [3, 1, 2]) + assert_equal(b, [3, 1, 2]) + assert_equal(c, [0, 1, 2]) + i[1] = 12 + assert_equal(i[0:2], [3, 12]) + +def test_iter_assign_mapping(): + a = np.arange(24, dtype='f8').reshape(2, 3, 4).T + it = np.nditer(a, [], [['readwrite', 'updateifcopy']], + casting='same_kind', op_dtypes=[np.dtype('f4')]) + with it: + it.operands[0][...] = 3 + it.operands[0][...] = 14 + assert_equal(a, 14) + it = np.nditer(a, [], [['readwrite', 'updateifcopy']], + casting='same_kind', op_dtypes=[np.dtype('f4')]) + with it: + x = it.operands[0][-1:1] + x[...] = 14 + it.operands[0][...] = -1234 + assert_equal(a, -1234) + # check for no warnings on dealloc + x = None + it = None + +def test_iter_nbo_align_contig(): + # Check that byte order, alignment, and contig changes work + + # Byte order change by requesting a specific dtype + a = np.arange(6, dtype='f4') + au = a.byteswap() + au = au.view(au.dtype.newbyteorder()) + assert_(a.dtype.byteorder != au.dtype.byteorder) + i = nditer(au, [], [['readwrite', 'updateifcopy']], + casting='equiv', + op_dtypes=[np.dtype('f4')]) + with i: + # context manager triggers WRITEBACKIFCOPY on i at exit + assert_equal(i.dtypes[0].byteorder, a.dtype.byteorder) + assert_equal(i.operands[0].dtype.byteorder, a.dtype.byteorder) + assert_equal(i.operands[0], a) + i.operands[0][:] = 2 + assert_equal(au, [2] * 6) + del i # should not raise a warning + # Byte order change by requesting NBO + a = np.arange(6, dtype='f4') + au = a.byteswap() + au = au.view(au.dtype.newbyteorder()) + assert_(a.dtype.byteorder != au.dtype.byteorder) + with nditer(au, [], [['readwrite', 'updateifcopy', 'nbo']], + casting='equiv') as i: + # context manager triggers UPDATEIFCOPY on i at exit + assert_equal(i.dtypes[0].byteorder, a.dtype.byteorder) + assert_equal(i.operands[0].dtype.byteorder, a.dtype.byteorder) + assert_equal(i.operands[0], a) + i.operands[0][:] = 12345 + i.operands[0][:] = 2 + assert_equal(au, [2] * 6) + + # Unaligned input + a = np.zeros((6 * 4 + 1,), dtype='i1')[1:] + a = a.view('f4') + a[:] = np.arange(6, dtype='f4') + assert_(not a.flags.aligned) + # Without 'aligned', shouldn't copy + i = nditer(a, [], [['readonly']]) + assert_(not i.operands[0].flags.aligned) + assert_equal(i.operands[0], a) + # With 'aligned', should make a copy + with nditer(a, [], [['readwrite', 'updateifcopy', 'aligned']]) as i: + assert_(i.operands[0].flags.aligned) + # context manager triggers UPDATEIFCOPY on i at exit + assert_equal(i.operands[0], a) + i.operands[0][:] = 3 + assert_equal(a, [3] * 6) + + # Discontiguous input + a = arange(12) + # If it is contiguous, shouldn't copy + i = nditer(a[:6], [], [['readonly']]) + assert_(i.operands[0].flags.contiguous) + assert_equal(i.operands[0], a[:6]) + # If it isn't contiguous, should buffer + i = nditer(a[::2], ['buffered', 'external_loop'], + [['readonly', 'contig']], + buffersize=10) + assert_(i[0].flags.contiguous) + assert_equal(i[0], a[::2]) + +def test_iter_array_cast(): + # Check that arrays are cast as requested + + # No cast 'f4' -> 'f4' + a = np.arange(6, dtype='f4').reshape(2, 3) + i = nditer(a, [], [['readwrite']], op_dtypes=[np.dtype('f4')]) + with i: + assert_equal(i.operands[0], a) + assert_equal(i.operands[0].dtype, np.dtype('f4')) + + # Byte-order cast ' '>f4' + a = np.arange(6, dtype='f4')]) as i: + assert_equal(i.operands[0], a) + assert_equal(i.operands[0].dtype, np.dtype('>f4')) + + # Safe case 'f4' -> 'f8' + a = np.arange(24, dtype='f4').reshape(2, 3, 4).swapaxes(1, 2) + i = nditer(a, [], [['readonly', 'copy']], + casting='safe', + op_dtypes=[np.dtype('f8')]) + assert_equal(i.operands[0], a) + assert_equal(i.operands[0].dtype, np.dtype('f8')) + # The memory layout of the temporary should match a (a is (48,4,16)) + # except negative strides get flipped to positive strides. + assert_equal(i.operands[0].strides, (96, 8, 32)) + a = a[::-1, :, ::-1] + i = nditer(a, [], [['readonly', 'copy']], + casting='safe', + op_dtypes=[np.dtype('f8')]) + assert_equal(i.operands[0], a) + assert_equal(i.operands[0].dtype, np.dtype('f8')) + assert_equal(i.operands[0].strides, (96, 8, 32)) + + # Same-kind cast 'f8' -> 'f4' -> 'f8' + a = np.arange(24, dtype='f8').reshape(2, 3, 4).T + with nditer(a, [], + [['readwrite', 'updateifcopy']], + casting='same_kind', + op_dtypes=[np.dtype('f4')]) as i: + assert_equal(i.operands[0], a) + assert_equal(i.operands[0].dtype, np.dtype('f4')) + assert_equal(i.operands[0].strides, (4, 16, 48)) + # Check that WRITEBACKIFCOPY is activated at exit + i.operands[0][2, 1, 1] = -12.5 + assert_(a[2, 1, 1] != -12.5) + assert_equal(a[2, 1, 1], -12.5) + + a = np.arange(6, dtype='i4')[::-2] + with nditer(a, [], + [['writeonly', 'updateifcopy']], + casting='unsafe', + op_dtypes=[np.dtype('f4')]) as i: + assert_equal(i.operands[0].dtype, np.dtype('f4')) + # Even though the stride was negative in 'a', it + # becomes positive in the temporary + assert_equal(i.operands[0].strides, (4,)) + i.operands[0][:] = [1, 2, 3] + assert_equal(a, [1, 2, 3]) + +def test_iter_array_cast_errors(): + # Check that invalid casts are caught + + # Need to enable copying for casts to occur + assert_raises(TypeError, nditer, arange(2, dtype='f4'), [], + [['readonly']], op_dtypes=[np.dtype('f8')]) + # Also need to allow casting for casts to occur + assert_raises(TypeError, nditer, arange(2, dtype='f4'), [], + [['readonly', 'copy']], casting='no', + op_dtypes=[np.dtype('f8')]) + assert_raises(TypeError, nditer, arange(2, dtype='f4'), [], + [['readonly', 'copy']], casting='equiv', + op_dtypes=[np.dtype('f8')]) + assert_raises(TypeError, nditer, arange(2, dtype='f8'), [], + [['writeonly', 'updateifcopy']], + casting='no', + op_dtypes=[np.dtype('f4')]) + assert_raises(TypeError, nditer, arange(2, dtype='f8'), [], + [['writeonly', 'updateifcopy']], + casting='equiv', + op_dtypes=[np.dtype('f4')]) + # ' '>f4' should not work with casting='no' + assert_raises(TypeError, nditer, arange(2, dtype='f4')]) + # 'f4' -> 'f8' is a safe cast, but 'f8' -> 'f4' isn't + assert_raises(TypeError, nditer, arange(2, dtype='f4'), [], + [['readwrite', 'updateifcopy']], + casting='safe', + op_dtypes=[np.dtype('f8')]) + assert_raises(TypeError, nditer, arange(2, dtype='f8'), [], + [['readwrite', 'updateifcopy']], + casting='safe', + op_dtypes=[np.dtype('f4')]) + # 'f4' -> 'i4' is neither a safe nor a same-kind cast + assert_raises(TypeError, nditer, arange(2, dtype='f4'), [], + [['readonly', 'copy']], + casting='same_kind', + op_dtypes=[np.dtype('i4')]) + assert_raises(TypeError, nditer, arange(2, dtype='i4'), [], + [['writeonly', 'updateifcopy']], + casting='same_kind', + op_dtypes=[np.dtype('f4')]) + +def test_iter_scalar_cast(): + # Check that scalars are cast as requested + + # No cast 'f4' -> 'f4' + i = nditer(np.float32(2.5), [], [['readonly']], + op_dtypes=[np.dtype('f4')]) + assert_equal(i.dtypes[0], np.dtype('f4')) + assert_equal(i.value.dtype, np.dtype('f4')) + assert_equal(i.value, 2.5) + # Safe cast 'f4' -> 'f8' + i = nditer(np.float32(2.5), [], + [['readonly', 'copy']], + casting='safe', + op_dtypes=[np.dtype('f8')]) + assert_equal(i.dtypes[0], np.dtype('f8')) + assert_equal(i.value.dtype, np.dtype('f8')) + assert_equal(i.value, 2.5) + # Same-kind cast 'f8' -> 'f4' + i = nditer(np.float64(2.5), [], + [['readonly', 'copy']], + casting='same_kind', + op_dtypes=[np.dtype('f4')]) + assert_equal(i.dtypes[0], np.dtype('f4')) + assert_equal(i.value.dtype, np.dtype('f4')) + assert_equal(i.value, 2.5) + # Unsafe cast 'f8' -> 'i4' + i = nditer(np.float64(3.0), [], + [['readonly', 'copy']], + casting='unsafe', + op_dtypes=[np.dtype('i4')]) + assert_equal(i.dtypes[0], np.dtype('i4')) + assert_equal(i.value.dtype, np.dtype('i4')) + assert_equal(i.value, 3) + # Readonly scalars may be cast even without setting COPY or BUFFERED + i = nditer(3, [], [['readonly']], op_dtypes=[np.dtype('f8')]) + assert_equal(i[0].dtype, np.dtype('f8')) + assert_equal(i[0], 3.) + +def test_iter_scalar_cast_errors(): + # Check that invalid casts are caught + + # Need to allow copying/buffering for write casts of scalars to occur + assert_raises(TypeError, nditer, np.float32(2), [], + [['readwrite']], op_dtypes=[np.dtype('f8')]) + assert_raises(TypeError, nditer, 2.5, [], + [['readwrite']], op_dtypes=[np.dtype('f4')]) + # 'f8' -> 'f4' isn't a safe cast if the value would overflow + assert_raises(TypeError, nditer, np.float64(1e60), [], + [['readonly']], + casting='safe', + op_dtypes=[np.dtype('f4')]) + # 'f4' -> 'i4' is neither a safe nor a same-kind cast + assert_raises(TypeError, nditer, np.float32(2), [], + [['readonly']], + casting='same_kind', + op_dtypes=[np.dtype('i4')]) + +def test_iter_object_arrays_basic(): + # Check that object arrays work + + obj = {'a': 3, 'b': 'd'} + a = np.array([[1, 2, 3], None, obj, None], dtype='O') + if HAS_REFCOUNT: + rc = sys.getrefcount(obj) + + # Need to allow references for object arrays + assert_raises(TypeError, nditer, a) + if HAS_REFCOUNT: + assert_equal(sys.getrefcount(obj), rc) + + i = nditer(a, ['refs_ok'], ['readonly']) + vals = [x_[()] for x_ in i] + assert_equal(np.array(vals, dtype='O'), a) + vals, i, x = [None] * 3 + if HAS_REFCOUNT: + assert_equal(sys.getrefcount(obj), rc) + + i = nditer(a.reshape(2, 2).T, ['refs_ok', 'buffered'], + ['readonly'], order='C') + assert_(i.iterationneedsapi) + vals = [x_[()] for x_ in i] + assert_equal(np.array(vals, dtype='O'), a.reshape(2, 2).ravel(order='F')) + vals, i, x = [None] * 3 + if HAS_REFCOUNT: + assert_equal(sys.getrefcount(obj), rc) + + i = nditer(a.reshape(2, 2).T, ['refs_ok', 'buffered'], + ['readwrite'], order='C') + with i: + for x in i: + x[...] = None + vals, i, x = [None] * 3 + if HAS_REFCOUNT: + assert_(sys.getrefcount(obj) == rc - 1) + assert_equal(a, np.array([None] * 4, dtype='O')) + +def test_iter_object_arrays_conversions(): + # Conversions to/from objects + a = np.arange(6, dtype='O') + i = nditer(a, ['refs_ok', 'buffered'], ['readwrite'], + casting='unsafe', op_dtypes='i4') + with i: + for x in i: + x[...] += 1 + assert_equal(a, np.arange(6) + 1) + + a = np.arange(6, dtype='i4') + i = nditer(a, ['refs_ok', 'buffered'], ['readwrite'], + casting='unsafe', op_dtypes='O') + with i: + for x in i: + x[...] += 1 + assert_equal(a, np.arange(6) + 1) + + # Non-contiguous object array + a = np.zeros((6,), dtype=[('p', 'i1'), ('a', 'O')]) + a = a['a'] + a[:] = np.arange(6) + i = nditer(a, ['refs_ok', 'buffered'], ['readwrite'], + casting='unsafe', op_dtypes='i4') + with i: + for x in i: + x[...] += 1 + assert_equal(a, np.arange(6) + 1) + + # Non-contiguous value array + a = np.zeros((6,), dtype=[('p', 'i1'), ('a', 'i4')]) + a = a['a'] + a[:] = np.arange(6) + 98172488 + i = nditer(a, ['refs_ok', 'buffered'], ['readwrite'], + casting='unsafe', op_dtypes='O') + with i: + ob = i[0][()] + if HAS_REFCOUNT: + rc = sys.getrefcount(ob) + for x in i: + x[...] += 1 + if HAS_REFCOUNT: + newrc = sys.getrefcount(ob) + assert_(newrc == rc - 1) + assert_equal(a, np.arange(6) + 98172489) + +def test_iter_common_dtype(): + # Check that the iterator finds a common data type correctly + # (some checks are somewhat duplicate after adopting NEP 50) + + i = nditer([array([3], dtype='f4'), array([0], dtype='f8')], + ['common_dtype'], + [['readonly', 'copy']] * 2, + casting='safe') + assert_equal(i.dtypes[0], np.dtype('f8')) + assert_equal(i.dtypes[1], np.dtype('f8')) + i = nditer([array([3], dtype='i4'), array([0], dtype='f4')], + ['common_dtype'], + [['readonly', 'copy']] * 2, + casting='safe') + assert_equal(i.dtypes[0], np.dtype('f8')) + assert_equal(i.dtypes[1], np.dtype('f8')) + i = nditer([array([3], dtype='f4'), array(0, dtype='f8')], + ['common_dtype'], + [['readonly', 'copy']] * 2, + casting='same_kind') + assert_equal(i.dtypes[0], np.dtype('f8')) + assert_equal(i.dtypes[1], np.dtype('f8')) + i = nditer([array([3], dtype='u4'), array(0, dtype='i4')], + ['common_dtype'], + [['readonly', 'copy']] * 2, + casting='safe') + assert_equal(i.dtypes[0], np.dtype('i8')) + assert_equal(i.dtypes[1], np.dtype('i8')) + i = nditer([array([3], dtype='u4'), array(-12, dtype='i4')], + ['common_dtype'], + [['readonly', 'copy']] * 2, + casting='safe') + assert_equal(i.dtypes[0], np.dtype('i8')) + assert_equal(i.dtypes[1], np.dtype('i8')) + i = nditer([array([3], dtype='u4'), array(-12, dtype='i4'), + array([2j], dtype='c8'), array([9], dtype='f8')], + ['common_dtype'], + [['readonly', 'copy']] * 4, + casting='safe') + assert_equal(i.dtypes[0], np.dtype('c16')) + assert_equal(i.dtypes[1], np.dtype('c16')) + assert_equal(i.dtypes[2], np.dtype('c16')) + assert_equal(i.dtypes[3], np.dtype('c16')) + assert_equal(i.value, (3, -12, 2j, 9)) + + # When allocating outputs, other outputs aren't factored in + i = nditer([array([3], dtype='i4'), None, array([2j], dtype='c16')], [], + [['readonly', 'copy'], + ['writeonly', 'allocate'], + ['writeonly']], + casting='safe') + assert_equal(i.dtypes[0], np.dtype('i4')) + assert_equal(i.dtypes[1], np.dtype('i4')) + assert_equal(i.dtypes[2], np.dtype('c16')) + # But, if common data types are requested, they are + i = nditer([array([3], dtype='i4'), None, array([2j], dtype='c16')], + ['common_dtype'], + [['readonly', 'copy'], + ['writeonly', 'allocate'], + ['writeonly']], + casting='safe') + assert_equal(i.dtypes[0], np.dtype('c16')) + assert_equal(i.dtypes[1], np.dtype('c16')) + assert_equal(i.dtypes[2], np.dtype('c16')) + +def test_iter_copy_if_overlap(): + # Ensure the iterator makes copies on read/write overlap, if requested + + # Copy not needed, 1 op + for flag in ['readonly', 'writeonly', 'readwrite']: + a = arange(10) + i = nditer([a], ['copy_if_overlap'], [[flag]]) + with i: + assert_(i.operands[0] is a) + + # Copy needed, 2 ops, read-write overlap + x = arange(10) + a = x[1:] + b = x[:-1] + with nditer([a, b], ['copy_if_overlap'], [['readonly'], ['readwrite']]) as i: + assert_(not np.shares_memory(*i.operands)) + + # Copy not needed with elementwise, 2 ops, exactly same arrays + x = arange(10) + a = x + b = x + i = nditer([a, b], ['copy_if_overlap'], [['readonly', 'overlap_assume_elementwise'], + ['readwrite', 'overlap_assume_elementwise']]) + with i: + assert_(i.operands[0] is a and i.operands[1] is b) + with nditer([a, b], ['copy_if_overlap'], [['readonly'], ['readwrite']]) as i: + assert_(i.operands[0] is a and not np.shares_memory(i.operands[1], b)) + + # Copy not needed, 2 ops, no overlap + x = arange(10) + a = x[::2] + b = x[1::2] + i = nditer([a, b], ['copy_if_overlap'], [['readonly'], ['writeonly']]) + assert_(i.operands[0] is a and i.operands[1] is b) + + # Copy needed, 2 ops, read-write overlap + x = arange(4, dtype=np.int8) + a = x[3:] + b = x.view(np.int32)[:1] + with nditer([a, b], ['copy_if_overlap'], [['readonly'], ['writeonly']]) as i: + assert_(not np.shares_memory(*i.operands)) + + # Copy needed, 3 ops, read-write overlap + for flag in ['writeonly', 'readwrite']: + x = np.ones([10, 10]) + a = x + b = x.T + c = x + with nditer([a, b, c], ['copy_if_overlap'], + [['readonly'], ['readonly'], [flag]]) as i: + a2, b2, c2 = i.operands + assert_(not np.shares_memory(a2, c2)) + assert_(not np.shares_memory(b2, c2)) + + # Copy not needed, 3 ops, read-only overlap + x = np.ones([10, 10]) + a = x + b = x.T + c = x + i = nditer([a, b, c], ['copy_if_overlap'], + [['readonly'], ['readonly'], ['readonly']]) + a2, b2, c2 = i.operands + assert_(a is a2) + assert_(b is b2) + assert_(c is c2) + + # Copy not needed, 3 ops, read-only overlap + x = np.ones([10, 10]) + a = x + b = np.ones([10, 10]) + c = x.T + i = nditer([a, b, c], ['copy_if_overlap'], + [['readonly'], ['writeonly'], ['readonly']]) + a2, b2, c2 = i.operands + assert_(a is a2) + assert_(b is b2) + assert_(c is c2) + + # Copy not needed, 3 ops, write-only overlap + x = np.arange(7) + a = x[:3] + b = x[3:6] + c = x[4:7] + i = nditer([a, b, c], ['copy_if_overlap'], + [['readonly'], ['writeonly'], ['writeonly']]) + a2, b2, c2 = i.operands + assert_(a is a2) + assert_(b is b2) + assert_(c is c2) + +def test_iter_op_axes(): + # Check that custom axes work + + # Reverse the axes + a = arange(6).reshape(2, 3) + i = nditer([a, a.T], [], [['readonly']] * 2, op_axes=[[0, 1], [1, 0]]) + assert_(all([x == y for (x, y) in i])) + a = arange(24).reshape(2, 3, 4) + i = nditer([a.T, a], [], [['readonly']] * 2, op_axes=[[2, 1, 0], None]) + assert_(all([x == y for (x, y) in i])) + + # Broadcast 1D to any dimension + a = arange(1, 31).reshape(2, 3, 5) + b = arange(1, 3) + i = nditer([a, b], [], [['readonly']] * 2, op_axes=[None, [0, -1, -1]]) + assert_equal([x * y for (x, y) in i], (a * b.reshape(2, 1, 1)).ravel()) + b = arange(1, 4) + i = nditer([a, b], [], [['readonly']] * 2, op_axes=[None, [-1, 0, -1]]) + assert_equal([x * y for (x, y) in i], (a * b.reshape(1, 3, 1)).ravel()) + b = arange(1, 6) + i = nditer([a, b], [], [['readonly']] * 2, + op_axes=[None, [np.newaxis, np.newaxis, 0]]) + assert_equal([x * y for (x, y) in i], (a * b.reshape(1, 1, 5)).ravel()) + + # Inner product-style broadcasting + a = arange(24).reshape(2, 3, 4) + b = arange(40).reshape(5, 2, 4) + i = nditer([a, b], ['multi_index'], [['readonly']] * 2, + op_axes=[[0, 1, -1, -1], [-1, -1, 0, 1]]) + assert_equal(i.shape, (2, 3, 5, 2)) + + # Matrix product-style broadcasting + a = arange(12).reshape(3, 4) + b = arange(20).reshape(4, 5) + i = nditer([a, b], ['multi_index'], [['readonly']] * 2, + op_axes=[[0, -1], [-1, 1]]) + assert_equal(i.shape, (3, 5)) + +def test_iter_op_axes_errors(): + # Check that custom axes throws errors for bad inputs + + # Wrong number of items in op_axes + a = arange(6).reshape(2, 3) + assert_raises(ValueError, nditer, [a, a], [], [['readonly']] * 2, + op_axes=[[0], [1], [0]]) + # Out of bounds items in op_axes + assert_raises(ValueError, nditer, [a, a], [], [['readonly']] * 2, + op_axes=[[2, 1], [0, 1]]) + assert_raises(ValueError, nditer, [a, a], [], [['readonly']] * 2, + op_axes=[[0, 1], [2, -1]]) + # Duplicate items in op_axes + assert_raises(ValueError, nditer, [a, a], [], [['readonly']] * 2, + op_axes=[[0, 0], [0, 1]]) + assert_raises(ValueError, nditer, [a, a], [], [['readonly']] * 2, + op_axes=[[0, 1], [1, 1]]) + + # Different sized arrays in op_axes + assert_raises(ValueError, nditer, [a, a], [], [['readonly']] * 2, + op_axes=[[0, 1], [0, 1, 0]]) + + # Non-broadcastable dimensions in the result + assert_raises(ValueError, nditer, [a, a], [], [['readonly']] * 2, + op_axes=[[0, 1], [1, 0]]) + +def test_iter_copy(): + # Check that copying the iterator works correctly + a = arange(24).reshape(2, 3, 4) + + # Simple iterator + i = nditer(a) + j = i.copy() + assert_equal([x[()] for x in i], [x[()] for x in j]) + + i.iterindex = 3 + j = i.copy() + assert_equal([x[()] for x in i], [x[()] for x in j]) + + # Buffered iterator + i = nditer(a, ['buffered', 'ranged'], order='F', buffersize=3) + j = i.copy() + assert_equal([x[()] for x in i], [x[()] for x in j]) + + i.iterindex = 3 + j = i.copy() + assert_equal([x[()] for x in i], [x[()] for x in j]) + + i.iterrange = (3, 9) + j = i.copy() + assert_equal([x[()] for x in i], [x[()] for x in j]) + + i.iterrange = (2, 18) + next(i) + next(i) + j = i.copy() + assert_equal([x[()] for x in i], [x[()] for x in j]) + + # Casting iterator + with nditer(a, ['buffered'], order='F', casting='unsafe', + op_dtypes='f8', buffersize=5) as i: + j = i.copy() + assert_equal([x[()] for x in j], a.ravel(order='F')) + + a = arange(24, dtype=' unstructured (any to object), and many other + # casts, which cause this to require all steps in the casting machinery + # one level down as well as the iterator copy (which uses NpyAuxData clone) + in_dtype = np.dtype([("a", np.dtype("i,")), + ("b", np.dtype(">i,d,S17,>d,3f,O,i1"))]) + out_dtype = np.dtype([("a", np.dtype("O")), + ("b", np.dtype(">i,>i,S17,>d,>U3,3d,i1,O"))]) + arr = np.ones(1000, dtype=in_dtype) + + it = np.nditer((arr,), ["buffered", "external_loop", "refs_ok"], + op_dtypes=[out_dtype], casting="unsafe") + it_copy = it.copy() + + res1 = next(it) + del it + res2 = next(it_copy) + del it_copy + + expected = arr["a"].astype(out_dtype["a"]) + assert_array_equal(res1["a"], expected) + assert_array_equal(res2["a"], expected) + + for field in in_dtype["b"].names: + # Note that the .base avoids the subarray field + expected = arr["b"][field].astype(out_dtype["b"][field].base) + assert_array_equal(res1["b"][field], expected) + assert_array_equal(res2["b"][field], expected) + + +def test_iter_copy_casts_structured2(): + # Similar to the above, this is a fairly arcane test to cover internals + in_dtype = np.dtype([("a", np.dtype("O,O")), + ("b", np.dtype("5O,3O,(1,)O,(1,)i,(1,)O"))]) + out_dtype = np.dtype([("a", np.dtype("O")), + ("b", np.dtype("O,3i,4O,4O,4i"))]) + + arr = np.ones(1, dtype=in_dtype) + it = np.nditer((arr,), ["buffered", "external_loop", "refs_ok"], + op_dtypes=[out_dtype], casting="unsafe") + it_copy = it.copy() + + res1 = next(it) + del it + res2 = next(it_copy) + del it_copy + + # Array of two structured scalars: + for res in res1, res2: + # Cast to tuple by getitem, which may be weird and changeable?: + assert isinstance(res["a"][0], tuple) + assert res["a"][0] == (1, 1) + + for res in res1, res2: + assert_array_equal(res["b"]["f0"][0], np.ones(5, dtype=object)) + assert_array_equal(res["b"]["f1"], np.ones((1, 3), dtype="i")) + assert res["b"]["f2"].shape == (1, 4) + assert_array_equal(res["b"]["f2"][0], np.ones(4, dtype=object)) + assert_array_equal(res["b"]["f3"][0], np.ones(4, dtype=object)) + assert_array_equal(res["b"]["f3"][0], np.ones(4, dtype="i")) + + +def test_iter_allocate_output_simple(): + # Check that the iterator will properly allocate outputs + + # Simple case + a = arange(6) + i = nditer([a, None], [], [['readonly'], ['writeonly', 'allocate']], + op_dtypes=[None, np.dtype('f4')]) + assert_equal(i.operands[1].shape, a.shape) + assert_equal(i.operands[1].dtype, np.dtype('f4')) + +def test_iter_allocate_output_buffered_readwrite(): + # Allocated output with buffering + delay_bufalloc + + a = arange(6) + i = nditer([a, None], ['buffered', 'delay_bufalloc'], + [['readonly'], ['allocate', 'readwrite']]) + with i: + i.operands[1][:] = 1 + i.reset() + for x in i: + x[1][...] += x[0][...] + assert_equal(i.operands[1], a + 1) + +def test_iter_allocate_output_itorder(): + # The allocated output should match the iteration order + + # C-order input, best iteration order + a = arange(6, dtype='i4').reshape(2, 3) + i = nditer([a, None], [], [['readonly'], ['writeonly', 'allocate']], + op_dtypes=[None, np.dtype('f4')]) + assert_equal(i.operands[1].shape, a.shape) + assert_equal(i.operands[1].strides, a.strides) + assert_equal(i.operands[1].dtype, np.dtype('f4')) + # F-order input, best iteration order + a = arange(24, dtype='i4').reshape(2, 3, 4).T + i = nditer([a, None], [], [['readonly'], ['writeonly', 'allocate']], + op_dtypes=[None, np.dtype('f4')]) + assert_equal(i.operands[1].shape, a.shape) + assert_equal(i.operands[1].strides, a.strides) + assert_equal(i.operands[1].dtype, np.dtype('f4')) + # Non-contiguous input, C iteration order + a = arange(24, dtype='i4').reshape(2, 3, 4).swapaxes(0, 1) + i = nditer([a, None], [], + [['readonly'], ['writeonly', 'allocate']], + order='C', + op_dtypes=[None, np.dtype('f4')]) + assert_equal(i.operands[1].shape, a.shape) + assert_equal(i.operands[1].strides, (32, 16, 4)) + assert_equal(i.operands[1].dtype, np.dtype('f4')) + +def test_iter_allocate_output_opaxes(): + # Specifying op_axes should work + + a = arange(24, dtype='i4').reshape(2, 3, 4) + i = nditer([None, a], [], [['writeonly', 'allocate'], ['readonly']], + op_dtypes=[np.dtype('u4'), None], + op_axes=[[1, 2, 0], None]) + assert_equal(i.operands[0].shape, (4, 2, 3)) + assert_equal(i.operands[0].strides, (4, 48, 16)) + assert_equal(i.operands[0].dtype, np.dtype('u4')) + +def test_iter_allocate_output_types_promotion(): + # Check type promotion of automatic outputs (this was more interesting + # before NEP 50...) + + i = nditer([array([3], dtype='f4'), array([0], dtype='f8'), None], [], + [['readonly']] * 2 + [['writeonly', 'allocate']]) + assert_equal(i.dtypes[2], np.dtype('f8')) + i = nditer([array([3], dtype='i4'), array([0], dtype='f4'), None], [], + [['readonly']] * 2 + [['writeonly', 'allocate']]) + assert_equal(i.dtypes[2], np.dtype('f8')) + i = nditer([array([3], dtype='f4'), array(0, dtype='f8'), None], [], + [['readonly']] * 2 + [['writeonly', 'allocate']]) + assert_equal(i.dtypes[2], np.dtype('f8')) + i = nditer([array([3], dtype='u4'), array(0, dtype='i4'), None], [], + [['readonly']] * 2 + [['writeonly', 'allocate']]) + assert_equal(i.dtypes[2], np.dtype('i8')) + i = nditer([array([3], dtype='u4'), array(-12, dtype='i4'), None], [], + [['readonly']] * 2 + [['writeonly', 'allocate']]) + assert_equal(i.dtypes[2], np.dtype('i8')) + +def test_iter_allocate_output_types_byte_order(): + # Verify the rules for byte order changes + + # When there's just one input, the output type exactly matches + a = array([3], dtype='u4') + a = a.view(a.dtype.newbyteorder()) + i = nditer([a, None], [], + [['readonly'], ['writeonly', 'allocate']]) + assert_equal(i.dtypes[0], i.dtypes[1]) + # With two or more inputs, the output type is in native byte order + i = nditer([a, a, None], [], + [['readonly'], ['readonly'], ['writeonly', 'allocate']]) + assert_(i.dtypes[0] != i.dtypes[2]) + assert_equal(i.dtypes[0].newbyteorder('='), i.dtypes[2]) + +def test_iter_allocate_output_types_scalar(): + # If the inputs are all scalars, the output should be a scalar + + i = nditer([None, 1, 2.3, np.float32(12), np.complex128(3)], [], + [['writeonly', 'allocate']] + [['readonly']] * 4) + assert_equal(i.operands[0].dtype, np.dtype('complex128')) + assert_equal(i.operands[0].ndim, 0) + +def test_iter_allocate_output_subtype(): + # Make sure that the subtype with priority wins + class MyNDArray(np.ndarray): + __array_priority__ = 15 + + # subclass vs ndarray + a = np.array([[1, 2], [3, 4]]).view(MyNDArray) + b = np.arange(4).reshape(2, 2).T + i = nditer([a, b, None], [], + [['readonly'], ['readonly'], ['writeonly', 'allocate']]) + assert_equal(type(a), type(i.operands[2])) + assert_(type(b) is not type(i.operands[2])) + assert_equal(i.operands[2].shape, (2, 2)) + + # If subtypes are disabled, we should get back an ndarray. + i = nditer([a, b, None], [], + [['readonly'], ['readonly'], + ['writeonly', 'allocate', 'no_subtype']]) + assert_equal(type(b), type(i.operands[2])) + assert_(type(a) is not type(i.operands[2])) + assert_equal(i.operands[2].shape, (2, 2)) + +def test_iter_allocate_output_errors(): + # Check that the iterator will throw errors for bad output allocations + + # Need an input if no output data type is specified + a = arange(6) + assert_raises(TypeError, nditer, [a, None], [], + [['writeonly'], ['writeonly', 'allocate']]) + # Allocated output should be flagged for writing + assert_raises(ValueError, nditer, [a, None], [], + [['readonly'], ['allocate', 'readonly']]) + # Allocated output can't have buffering without delayed bufalloc + assert_raises(ValueError, nditer, [a, None], ['buffered'], + ['allocate', 'readwrite']) + # Must specify dtype if there are no inputs (cannot promote existing ones; + # maybe this should use the 'f4' here, but it does not historically.) + assert_raises(TypeError, nditer, [None, None], [], + [['writeonly', 'allocate'], + ['writeonly', 'allocate']], + op_dtypes=[None, np.dtype('f4')]) + # If using op_axes, must specify all the axes + a = arange(24, dtype='i4').reshape(2, 3, 4) + assert_raises(ValueError, nditer, [a, None], [], + [['readonly'], ['writeonly', 'allocate']], + op_dtypes=[None, np.dtype('f4')], + op_axes=[None, [0, np.newaxis, 1]]) + # If using op_axes, the axes must be within bounds + assert_raises(ValueError, nditer, [a, None], [], + [['readonly'], ['writeonly', 'allocate']], + op_dtypes=[None, np.dtype('f4')], + op_axes=[None, [0, 3, 1]]) + # If using op_axes, there can't be duplicates + assert_raises(ValueError, nditer, [a, None], [], + [['readonly'], ['writeonly', 'allocate']], + op_dtypes=[None, np.dtype('f4')], + op_axes=[None, [0, 2, 1, 0]]) + # Not all axes may be specified if a reduction. If there is a hole + # in op_axes, this is an error. + a = arange(24, dtype='i4').reshape(2, 3, 4) + assert_raises(ValueError, nditer, [a, None], ["reduce_ok"], + [['readonly'], ['readwrite', 'allocate']], + op_dtypes=[None, np.dtype('f4')], + op_axes=[None, [0, np.newaxis, 2]]) + +def test_all_allocated(): + # When no output and no shape is given, `()` is used as shape. + i = np.nditer([None], op_dtypes=["int64"]) + assert i.operands[0].shape == () + assert i.dtypes == (np.dtype("int64"),) + + i = np.nditer([None], op_dtypes=["int64"], itershape=(2, 3, 4)) + assert i.operands[0].shape == (2, 3, 4) + +def test_iter_remove_axis(): + a = arange(24).reshape(2, 3, 4) + + i = nditer(a, ['multi_index']) + i.remove_axis(1) + assert_equal(list(i), a[:, 0, :].ravel()) + + a = a[::-1, :, :] + i = nditer(a, ['multi_index']) + i.remove_axis(0) + assert_equal(list(i), a[0, :, :].ravel()) + +def test_iter_remove_multi_index_inner_loop(): + # Check that removing multi-index support works + + a = arange(24).reshape(2, 3, 4) + + i = nditer(a, ['multi_index']) + assert_equal(i.ndim, 3) + assert_equal(i.shape, (2, 3, 4)) + assert_equal(i.itviews[0].shape, (2, 3, 4)) + + # Removing the multi-index tracking causes all dimensions to coalesce + before = list(i) + i.remove_multi_index() + after = list(i) + + assert_equal(before, after) + assert_equal(i.ndim, 1) + assert_raises(ValueError, lambda i: i.shape, i) + assert_equal(i.itviews[0].shape, (24,)) + + # Removing the inner loop means there's just one iteration + i.reset() + assert_equal(i.itersize, 24) + assert_equal(i[0].shape, ()) + i.enable_external_loop() + assert_equal(i.itersize, 24) + assert_equal(i[0].shape, (24,)) + assert_equal(i.value, arange(24)) + +def test_iter_iterindex(): + # Make sure iterindex works + + buffersize = 5 + a = arange(24).reshape(4, 3, 2) + for flags in ([], ['buffered']): + i = nditer(a, flags, buffersize=buffersize) + assert_equal(iter_iterindices(i), list(range(24))) + i.iterindex = 2 + assert_equal(iter_iterindices(i), list(range(2, 24))) + + i = nditer(a, flags, order='F', buffersize=buffersize) + assert_equal(iter_iterindices(i), list(range(24))) + i.iterindex = 5 + assert_equal(iter_iterindices(i), list(range(5, 24))) + + i = nditer(a[::-1], flags, order='F', buffersize=buffersize) + assert_equal(iter_iterindices(i), list(range(24))) + i.iterindex = 9 + assert_equal(iter_iterindices(i), list(range(9, 24))) + + i = nditer(a[::-1, ::-1], flags, order='C', buffersize=buffersize) + assert_equal(iter_iterindices(i), list(range(24))) + i.iterindex = 13 + assert_equal(iter_iterindices(i), list(range(13, 24))) + + i = nditer(a[::1, ::-1], flags, buffersize=buffersize) + assert_equal(iter_iterindices(i), list(range(24))) + i.iterindex = 23 + assert_equal(iter_iterindices(i), list(range(23, 24))) + i.reset() + i.iterindex = 2 + assert_equal(iter_iterindices(i), list(range(2, 24))) + +def test_iter_iterrange(): + # Make sure getting and resetting the iterrange works + + buffersize = 5 + a = arange(24, dtype='i4').reshape(4, 3, 2) + a_fort = a.ravel(order='F') + + i = nditer(a, ['ranged'], ['readonly'], order='F', + buffersize=buffersize) + assert_equal(i.iterrange, (0, 24)) + assert_equal([x[()] for x in i], a_fort) + for r in [(0, 24), (1, 2), (3, 24), (5, 5), (0, 20), (23, 24)]: + i.iterrange = r + assert_equal(i.iterrange, r) + assert_equal([x[()] for x in i], a_fort[r[0]:r[1]]) + + i = nditer(a, ['ranged', 'buffered'], ['readonly'], order='F', + op_dtypes='f8', buffersize=buffersize) + assert_equal(i.iterrange, (0, 24)) + assert_equal([x[()] for x in i], a_fort) + for r in [(0, 24), (1, 2), (3, 24), (5, 5), (0, 20), (23, 24)]: + i.iterrange = r + assert_equal(i.iterrange, r) + assert_equal([x[()] for x in i], a_fort[r[0]:r[1]]) + + def get_array(i): + val = np.array([], dtype='f8') + for x in i: + val = np.concatenate((val, x)) + return val + + i = nditer(a, ['ranged', 'buffered', 'external_loop'], + ['readonly'], order='F', + op_dtypes='f8', buffersize=buffersize) + assert_equal(i.iterrange, (0, 24)) + assert_equal(get_array(i), a_fort) + for r in [(0, 24), (1, 2), (3, 24), (5, 5), (0, 20), (23, 24)]: + i.iterrange = r + assert_equal(i.iterrange, r) + assert_equal(get_array(i), a_fort[r[0]:r[1]]) + +def test_iter_buffering(): + # Test buffering with several buffer sizes and types + arrays = [] + # F-order swapped array + _tmp = np.arange(24, dtype='c16').reshape(2, 3, 4).T + _tmp = _tmp.view(_tmp.dtype.newbyteorder()).byteswap() + arrays.append(_tmp) + # Contiguous 1-dimensional array + arrays.append(np.arange(10, dtype='f4')) + # Unaligned array + a = np.zeros((4 * 16 + 1,), dtype='i1')[1:] + a = a.view('i4') + a[:] = np.arange(16, dtype='i4') + arrays.append(a) + # 4-D F-order array + arrays.append(np.arange(120, dtype='i4').reshape(5, 3, 2, 4).T) + for a in arrays: + for buffersize in (1, 2, 3, 5, 8, 11, 16, 1024): + vals = [] + i = nditer(a, ['buffered', 'external_loop'], + [['readonly', 'nbo', 'aligned']], + order='C', + casting='equiv', + buffersize=buffersize) + while not i.finished: + assert_(i[0].size <= buffersize) + vals.append(i[0].copy()) + i.iternext() + assert_equal(np.concatenate(vals), a.ravel(order='C')) + +def test_iter_write_buffering(): + # Test that buffering of writes is working + + # F-order swapped array + a = np.arange(24).reshape(2, 3, 4).T + a = a.view(a.dtype.newbyteorder()).byteswap() + i = nditer(a, ['buffered'], + [['readwrite', 'nbo', 'aligned']], + casting='equiv', + order='C', + buffersize=16) + x = 0 + with i: + while not i.finished: + i[0] = x + x += 1 + i.iternext() + assert_equal(a.ravel(order='C'), np.arange(24)) + +def test_iter_buffering_delayed_alloc(): + # Test that delaying buffer allocation works + + a = np.arange(6) + b = np.arange(1, dtype='f4') + i = nditer([a, b], ['buffered', 'delay_bufalloc', 'multi_index', 'reduce_ok'], + ['readwrite'], + casting='unsafe', + op_dtypes='f4') + assert_(i.has_delayed_bufalloc) + assert_raises(ValueError, lambda i: i.multi_index, i) + assert_raises(ValueError, lambda i: i[0], i) + assert_raises(ValueError, lambda i: i[0:2], i) + + def assign_iter(i): + i[0] = 0 + assert_raises(ValueError, assign_iter, i) + + i.reset() + assert_(not i.has_delayed_bufalloc) + assert_equal(i.multi_index, (0,)) + with i: + assert_equal(i[0], 0) + i[1] = 1 + assert_equal(i[0:2], [0, 1]) + assert_equal([[x[0][()], x[1][()]] for x in i], list(zip(range(6), [1] * 6))) + +def test_iter_buffered_cast_simple(): + # Test that buffering can handle a simple cast + + a = np.arange(10, dtype='f4') + i = nditer(a, ['buffered', 'external_loop'], + [['readwrite', 'nbo', 'aligned']], + casting='same_kind', + op_dtypes=[np.dtype('f8')], + buffersize=3) + with i: + for v in i: + v[...] *= 2 + + assert_equal(a, 2 * np.arange(10, dtype='f4')) + +def test_iter_buffered_cast_byteswapped(): + # Test that buffering can handle a cast which requires swap->cast->swap + + a = np.arange(10, dtype='f4') + a = a.view(a.dtype.newbyteorder()).byteswap() + i = nditer(a, ['buffered', 'external_loop'], + [['readwrite', 'nbo', 'aligned']], + casting='same_kind', + op_dtypes=[np.dtype('f8').newbyteorder()], + buffersize=3) + with i: + for v in i: + v[...] *= 2 + + assert_equal(a, 2 * np.arange(10, dtype='f4')) + + with warnings.catch_warnings(): + warnings.simplefilter('ignore', np.exceptions.ComplexWarning) + + a = np.arange(10, dtype='f8') + a = a.view(a.dtype.newbyteorder()).byteswap() + i = nditer(a, ['buffered', 'external_loop'], + [['readwrite', 'nbo', 'aligned']], + casting='unsafe', + op_dtypes=[np.dtype('c8').newbyteorder()], + buffersize=3) + with i: + for v in i: + v[...] *= 2 + + assert_equal(a, 2 * np.arange(10, dtype='f8')) + +def test_iter_buffered_cast_byteswapped_complex(): + # Test that buffering can handle a cast which requires swap->cast->copy + + a = np.arange(10, dtype='c8') + a = a.view(a.dtype.newbyteorder()).byteswap() + a += 2j + i = nditer(a, ['buffered', 'external_loop'], + [['readwrite', 'nbo', 'aligned']], + casting='same_kind', + op_dtypes=[np.dtype('c16')], + buffersize=3) + with i: + for v in i: + v[...] *= 2 + assert_equal(a, 2 * np.arange(10, dtype='c8') + 4j) + + a = np.arange(10, dtype='c8') + a += 2j + i = nditer(a, ['buffered', 'external_loop'], + [['readwrite', 'nbo', 'aligned']], + casting='same_kind', + op_dtypes=[np.dtype('c16').newbyteorder()], + buffersize=3) + with i: + for v in i: + v[...] *= 2 + assert_equal(a, 2 * np.arange(10, dtype='c8') + 4j) + + a = np.arange(10, dtype=np.clongdouble) + a = a.view(a.dtype.newbyteorder()).byteswap() + a += 2j + i = nditer(a, ['buffered', 'external_loop'], + [['readwrite', 'nbo', 'aligned']], + casting='same_kind', + op_dtypes=[np.dtype('c16')], + buffersize=3) + with i: + for v in i: + v[...] *= 2 + assert_equal(a, 2 * np.arange(10, dtype=np.clongdouble) + 4j) + + a = np.arange(10, dtype=np.longdouble) + a = a.view(a.dtype.newbyteorder()).byteswap() + i = nditer(a, ['buffered', 'external_loop'], + [['readwrite', 'nbo', 'aligned']], + casting='same_kind', + op_dtypes=[np.dtype('f4')], + buffersize=7) + with i: + for v in i: + v[...] *= 2 + assert_equal(a, 2 * np.arange(10, dtype=np.longdouble)) + +def test_iter_buffered_cast_structured_type(): + # Tests buffering of structured types + + # simple -> struct type (duplicates the value) + sdt = [('a', 'f4'), ('b', 'i8'), ('c', 'c8', (2, 3)), ('d', 'O')] + a = np.arange(3, dtype='f4') + 0.5 + i = nditer(a, ['buffered', 'refs_ok'], ['readonly'], + casting='unsafe', + op_dtypes=sdt) + vals = [np.array(x) for x in i] + assert_equal(vals[0]['a'], 0.5) + assert_equal(vals[0]['b'], 0) + assert_equal(vals[0]['c'], [[(0.5)] * 3] * 2) + assert_equal(vals[0]['d'], 0.5) + assert_equal(vals[1]['a'], 1.5) + assert_equal(vals[1]['b'], 1) + assert_equal(vals[1]['c'], [[(1.5)] * 3] * 2) + assert_equal(vals[1]['d'], 1.5) + assert_equal(vals[0].dtype, np.dtype(sdt)) + + # object -> struct type + sdt = [('a', 'f4'), ('b', 'i8'), ('c', 'c8', (2, 3)), ('d', 'O')] + a = np.zeros((3,), dtype='O') + a[0] = (0.5, 0.5, [[0.5, 0.5, 0.5], [0.5, 0.5, 0.5]], 0.5) + a[1] = (1.5, 1.5, [[1.5, 1.5, 1.5], [1.5, 1.5, 1.5]], 1.5) + a[2] = (2.5, 2.5, [[2.5, 2.5, 2.5], [2.5, 2.5, 2.5]], 2.5) + if HAS_REFCOUNT: + rc = sys.getrefcount(a[0]) + i = nditer(a, ['buffered', 'refs_ok'], ['readonly'], + casting='unsafe', + op_dtypes=sdt) + vals = [x.copy() for x in i] + assert_equal(vals[0]['a'], 0.5) + assert_equal(vals[0]['b'], 0) + assert_equal(vals[0]['c'], [[(0.5)] * 3] * 2) + assert_equal(vals[0]['d'], 0.5) + assert_equal(vals[1]['a'], 1.5) + assert_equal(vals[1]['b'], 1) + assert_equal(vals[1]['c'], [[(1.5)] * 3] * 2) + assert_equal(vals[1]['d'], 1.5) + assert_equal(vals[0].dtype, np.dtype(sdt)) + vals, i, x = [None] * 3 + if HAS_REFCOUNT: + assert_equal(sys.getrefcount(a[0]), rc) + + # single-field struct type -> simple + sdt = [('a', 'f4')] + a = np.array([(5.5,), (8,)], dtype=sdt) + i = nditer(a, ['buffered', 'refs_ok'], ['readonly'], + casting='unsafe', + op_dtypes='i4') + assert_equal([x_[()] for x_ in i], [5, 8]) + + # make sure multi-field struct type -> simple doesn't work + sdt = [('a', 'f4'), ('b', 'i8'), ('d', 'O')] + a = np.array([(5.5, 7, 'test'), (8, 10, 11)], dtype=sdt) + assert_raises(TypeError, lambda: ( + nditer(a, ['buffered', 'refs_ok'], ['readonly'], + casting='unsafe', + op_dtypes='i4'))) + + # struct type -> struct type (field-wise copy) + sdt1 = [('a', 'f4'), ('b', 'i8'), ('d', 'O')] + sdt2 = [('d', 'u2'), ('a', 'O'), ('b', 'f8')] + a = np.array([(1, 2, 3), (4, 5, 6)], dtype=sdt1) + i = nditer(a, ['buffered', 'refs_ok'], ['readonly'], + casting='unsafe', + op_dtypes=sdt2) + assert_equal(i[0].dtype, np.dtype(sdt2)) + assert_equal([np.array(x_) for x_ in i], + [np.array((1, 2, 3), dtype=sdt2), + np.array((4, 5, 6), dtype=sdt2)]) + + +def test_iter_buffered_cast_structured_type_failure_with_cleanup(): + # make sure struct type -> struct type with different + # number of fields fails + sdt1 = [('a', 'f4'), ('b', 'i8'), ('d', 'O')] + sdt2 = [('b', 'O'), ('a', 'f8')] + a = np.array([(1, 2, 3), (4, 5, 6)], dtype=sdt1) + + for intent in ["readwrite", "readonly", "writeonly"]: + # This test was initially designed to test an error at a different + # place, but will now raise earlier to to the cast not being possible: + # `assert np.can_cast(a.dtype, sdt2, casting="unsafe")` fails. + # Without a faulty DType, there is probably no reliable + # way to get the initial tested behaviour. + simple_arr = np.array([1, 2], dtype="i,i") # requires clean up + with pytest.raises(TypeError): + nditer((simple_arr, a), ['buffered', 'refs_ok'], [intent, intent], + casting='unsafe', op_dtypes=["f,f", sdt2]) + + +def test_buffered_cast_error_paths(): + with pytest.raises(ValueError): + # The input is cast into an `S3` buffer + np.nditer((np.array("a", dtype="S1"),), op_dtypes=["i"], + casting="unsafe", flags=["buffered"]) + + # The `M8[ns]` is cast into the `S3` output + it = np.nditer((np.array(1, dtype="i"),), op_dtypes=["S1"], + op_flags=["writeonly"], casting="unsafe", flags=["buffered"]) + with pytest.raises(ValueError): + with it: + buf = next(it) + buf[...] = "a" # cannot be converted to int. + +@pytest.mark.skipif(IS_WASM, reason="Cannot start subprocess") +@pytest.mark.skipif(not HAS_REFCOUNT, reason="PyPy seems to not hit this.") +def test_buffered_cast_error_paths_unraisable(): + # The following gives an unraisable error. Pytest sometimes captures that + # (depending python and/or pytest version). So with Python>=3.8 this can + # probably be cleaned out in the future to check for + # pytest.PytestUnraisableExceptionWarning: + code = textwrap.dedent(""" + import numpy as np + + it = np.nditer((np.array(1, dtype="i"),), op_dtypes=["S1"], + op_flags=["writeonly"], casting="unsafe", flags=["buffered"]) + buf = next(it) + buf[...] = "a" + del buf, it # Flushing only happens during deallocate right now. + """) + res = subprocess.check_output([sys.executable, "-c", code], + stderr=subprocess.STDOUT, text=True) + assert "ValueError" in res + + +def test_iter_buffered_cast_subarray(): + # Tests buffering of subarrays + + # one element -> many (copies it to all) + sdt1 = [('a', 'f4')] + sdt2 = [('a', 'f8', (3, 2, 2))] + a = np.zeros((6,), dtype=sdt1) + a['a'] = np.arange(6) + i = nditer(a, ['buffered', 'refs_ok'], ['readonly'], + casting='unsafe', + op_dtypes=sdt2) + assert_equal(i[0].dtype, np.dtype(sdt2)) + for x, count in zip(i, list(range(6))): + assert_(np.all(x['a'] == count)) + + # one element -> many -> back (copies it to all) + sdt1 = [('a', 'O', (1, 1))] + sdt2 = [('a', 'O', (3, 2, 2))] + a = np.zeros((6,), dtype=sdt1) + a['a'][:, 0, 0] = np.arange(6) + i = nditer(a, ['buffered', 'refs_ok'], ['readwrite'], + casting='unsafe', + op_dtypes=sdt2) + with i: + assert_equal(i[0].dtype, np.dtype(sdt2)) + count = 0 + for x in i: + assert_(np.all(x['a'] == count)) + x['a'][0] += 2 + count += 1 + assert_equal(a['a'], np.arange(6).reshape(6, 1, 1) + 2) + + # many -> one element -> back (copies just element 0) + sdt1 = [('a', 'O', (3, 2, 2))] + sdt2 = [('a', 'O', (1,))] + a = np.zeros((6,), dtype=sdt1) + a['a'][:, 0, 0, 0] = np.arange(6) + i = nditer(a, ['buffered', 'refs_ok'], ['readwrite'], + casting='unsafe', + op_dtypes=sdt2) + with i: + assert_equal(i[0].dtype, np.dtype(sdt2)) + count = 0 + for x in i: + assert_equal(x['a'], count) + x['a'] += 2 + count += 1 + assert_equal(a['a'], np.arange(6).reshape(6, 1, 1, 1) * np.ones((1, 3, 2, 2)) + 2) + + # many -> one element -> back (copies just element 0) + sdt1 = [('a', 'f8', (3, 2, 2))] + sdt2 = [('a', 'O', (1,))] + a = np.zeros((6,), dtype=sdt1) + a['a'][:, 0, 0, 0] = np.arange(6) + i = nditer(a, ['buffered', 'refs_ok'], ['readonly'], + casting='unsafe', + op_dtypes=sdt2) + assert_equal(i[0].dtype, np.dtype(sdt2)) + count = 0 + for x in i: + assert_equal(x['a'], count) + count += 1 + + # many -> one element (copies just element 0) + sdt1 = [('a', 'O', (3, 2, 2))] + sdt2 = [('a', 'f4', (1,))] + a = np.zeros((6,), dtype=sdt1) + a['a'][:, 0, 0, 0] = np.arange(6) + i = nditer(a, ['buffered', 'refs_ok'], ['readonly'], + casting='unsafe', + op_dtypes=sdt2) + assert_equal(i[0].dtype, np.dtype(sdt2)) + count = 0 + for x in i: + assert_equal(x['a'], count) + count += 1 + + # many -> matching shape (straightforward copy) + sdt1 = [('a', 'O', (3, 2, 2))] + sdt2 = [('a', 'f4', (3, 2, 2))] + a = np.zeros((6,), dtype=sdt1) + a['a'] = np.arange(6 * 3 * 2 * 2).reshape(6, 3, 2, 2) + i = nditer(a, ['buffered', 'refs_ok'], ['readonly'], + casting='unsafe', + op_dtypes=sdt2) + assert_equal(i[0].dtype, np.dtype(sdt2)) + count = 0 + for x in i: + assert_equal(x['a'], a[count]['a']) + count += 1 + + # vector -> smaller vector (truncates) + sdt1 = [('a', 'f8', (6,))] + sdt2 = [('a', 'f4', (2,))] + a = np.zeros((6,), dtype=sdt1) + a['a'] = np.arange(6 * 6).reshape(6, 6) + i = nditer(a, ['buffered', 'refs_ok'], ['readonly'], + casting='unsafe', + op_dtypes=sdt2) + assert_equal(i[0].dtype, np.dtype(sdt2)) + count = 0 + for x in i: + assert_equal(x['a'], a[count]['a'][:2]) + count += 1 + + # vector -> bigger vector (pads with zeros) + sdt1 = [('a', 'f8', (2,))] + sdt2 = [('a', 'f4', (6,))] + a = np.zeros((6,), dtype=sdt1) + a['a'] = np.arange(6 * 2).reshape(6, 2) + i = nditer(a, ['buffered', 'refs_ok'], ['readonly'], + casting='unsafe', + op_dtypes=sdt2) + assert_equal(i[0].dtype, np.dtype(sdt2)) + count = 0 + for x in i: + assert_equal(x['a'][:2], a[count]['a']) + assert_equal(x['a'][2:], [0, 0, 0, 0]) + count += 1 + + # vector -> matrix (broadcasts) + sdt1 = [('a', 'f8', (2,))] + sdt2 = [('a', 'f4', (2, 2))] + a = np.zeros((6,), dtype=sdt1) + a['a'] = np.arange(6 * 2).reshape(6, 2) + i = nditer(a, ['buffered', 'refs_ok'], ['readonly'], + casting='unsafe', + op_dtypes=sdt2) + assert_equal(i[0].dtype, np.dtype(sdt2)) + count = 0 + for x in i: + assert_equal(x['a'][0], a[count]['a']) + assert_equal(x['a'][1], a[count]['a']) + count += 1 + + # vector -> matrix (broadcasts and zero-pads) + sdt1 = [('a', 'f8', (2, 1))] + sdt2 = [('a', 'f4', (3, 2))] + a = np.zeros((6,), dtype=sdt1) + a['a'] = np.arange(6 * 2).reshape(6, 2, 1) + i = nditer(a, ['buffered', 'refs_ok'], ['readonly'], + casting='unsafe', + op_dtypes=sdt2) + assert_equal(i[0].dtype, np.dtype(sdt2)) + count = 0 + for x in i: + assert_equal(x['a'][:2, 0], a[count]['a'][:, 0]) + assert_equal(x['a'][:2, 1], a[count]['a'][:, 0]) + assert_equal(x['a'][2, :], [0, 0]) + count += 1 + + # matrix -> matrix (truncates and zero-pads) + sdt1 = [('a', 'f8', (2, 3))] + sdt2 = [('a', 'f4', (3, 2))] + a = np.zeros((6,), dtype=sdt1) + a['a'] = np.arange(6 * 2 * 3).reshape(6, 2, 3) + i = nditer(a, ['buffered', 'refs_ok'], ['readonly'], + casting='unsafe', + op_dtypes=sdt2) + assert_equal(i[0].dtype, np.dtype(sdt2)) + count = 0 + for x in i: + assert_equal(x['a'][:2, 0], a[count]['a'][:, 0]) + assert_equal(x['a'][:2, 1], a[count]['a'][:, 1]) + assert_equal(x['a'][2, :], [0, 0]) + count += 1 + +def test_iter_buffering_badwriteback(): + # Writing back from a buffer cannot combine elements + + # a needs write buffering, but had a broadcast dimension + a = np.arange(6).reshape(2, 3, 1) + b = np.arange(12).reshape(2, 3, 2) + assert_raises(ValueError, nditer, [a, b], + ['buffered', 'external_loop'], + [['readwrite'], ['writeonly']], + order='C') + + # But if a is readonly, it's fine + nditer([a, b], ['buffered', 'external_loop'], + [['readonly'], ['writeonly']], + order='C') + + # If a has just one element, it's fine too (constant 0 stride, a reduction) + a = np.arange(1).reshape(1, 1, 1) + nditer([a, b], ['buffered', 'external_loop', 'reduce_ok'], + [['readwrite'], ['writeonly']], + order='C') + + # check that it fails on other dimensions too + a = np.arange(6).reshape(1, 3, 2) + assert_raises(ValueError, nditer, [a, b], + ['buffered', 'external_loop'], + [['readwrite'], ['writeonly']], + order='C') + a = np.arange(4).reshape(2, 1, 2) + assert_raises(ValueError, nditer, [a, b], + ['buffered', 'external_loop'], + [['readwrite'], ['writeonly']], + order='C') + +def test_iter_buffering_string(): + # Safe casting disallows shrinking strings + a = np.array(['abc', 'a', 'abcd'], dtype=np.bytes_) + assert_equal(a.dtype, np.dtype('S4')) + assert_raises(TypeError, nditer, a, ['buffered'], ['readonly'], + op_dtypes='S2') + i = nditer(a, ['buffered'], ['readonly'], op_dtypes='S6') + assert_equal(i[0], b'abc') + assert_equal(i[0].dtype, np.dtype('S6')) + + a = np.array(['abc', 'a', 'abcd'], dtype=np.str_) + assert_equal(a.dtype, np.dtype('U4')) + assert_raises(TypeError, nditer, a, ['buffered'], ['readonly'], + op_dtypes='U2') + i = nditer(a, ['buffered'], ['readonly'], op_dtypes='U6') + assert_equal(i[0], 'abc') + assert_equal(i[0].dtype, np.dtype('U6')) + +def test_iter_buffering_growinner(): + # Test that the inner loop grows when no buffering is needed + a = np.arange(30) + i = nditer(a, ['buffered', 'growinner', 'external_loop'], + buffersize=5) + # Should end up with just one inner loop here + assert_equal(i[0].size, a.size) + + +@pytest.mark.parametrize("read_or_readwrite", ["readonly", "readwrite"]) +def test_iter_contig_flag_reduce_error(read_or_readwrite): + # Test that a non-contiguous operand is rejected without buffering. + # NOTE: This is true even for a reduction, where we return a 0-stride + # below! + with pytest.raises(TypeError, match="Iterator operand required buffering"): + it = np.nditer( + (np.zeros(()),), flags=["external_loop", "reduce_ok"], + op_flags=[(read_or_readwrite, "contig"),], itershape=(10,)) + + +@pytest.mark.parametrize("arr", [ + lambda: np.zeros(()), + lambda: np.zeros((20, 1))[::20], + lambda: np.zeros((1, 20))[:, ::20] + ]) +def test_iter_contig_flag_single_operand_strides(arr): + """ + Tests the strides with the contig flag for both broadcast and non-broadcast + operands in 3 cases where the logic is needed: + 1. When everything has a zero stride, the broadcast op needs to repeated + 2. When the reduce axis is the last axis (first to iterate). + 3. When the reduce axis is the first axis (last to iterate). + + NOTE: The semantics of the cast flag are not clearly defined when + it comes to reduction. It is unclear that there are any users. + """ + first_op = np.ones((10, 10)) + broadcast_op = arr() + red_op = arr() + # Add a first operand to ensure no axis-reordering and the result shape. + iterator = np.nditer( + (first_op, broadcast_op, red_op), + flags=["external_loop", "reduce_ok", "buffered", "delay_bufalloc"], + op_flags=[("readonly", "contig")] * 2 + [("readwrite", "contig")]) + + with iterator: + iterator.reset() + for f, b, r in iterator: + # The first operand is contigouos, we should have a view + assert np.shares_memory(f, first_op) + # Although broadcast, the second op always has a contiguous stride + assert b.strides[0] == 8 + assert not np.shares_memory(b, broadcast_op) + # The reduction has a contiguous stride or a 0 stride + if red_op.ndim == 0 or red_op.shape[-1] == 1: + assert r.strides[0] == 0 + else: + # The stride is 8, although it was not originally: + assert r.strides[0] == 8 + # If the reduce stride is 0, buffering makes no difference, but we + # do it anyway right now: + assert not np.shares_memory(r, red_op) + + +@pytest.mark.xfail(reason="The contig flag was always buggy.") +def test_iter_contig_flag_incorrect(): + # This case does the wrong thing... + iterator = np.nditer( + (np.ones((10, 10)).T, np.ones((1, 10))), + flags=["external_loop", "reduce_ok", "buffered", "delay_bufalloc"], + op_flags=[("readonly", "contig")] * 2) + + with iterator: + iterator.reset() + for a, b in iterator: + # Remove a and b from locals (pytest may want to format them) + a, b = a.strides, b.strides + assert a == 8 + assert b == 8 # should be 8 but is 0 due to axis reorder + + +@pytest.mark.slow +def test_iter_buffered_reduce_reuse(): + # large enough array for all views, including negative strides. + a = np.arange(2 * 3**5)[3**5:3**5 + 1] + flags = ['buffered', 'delay_bufalloc', 'multi_index', 'reduce_ok', 'refs_ok'] + op_flags = [('readonly',), ('readwrite', 'allocate')] + op_axes_list = [[(0, 1, 2), (0, 1, -1)], [(0, 1, 2), (0, -1, -1)]] + # wrong dtype to force buffering + op_dtypes = [float, a.dtype] + + def get_params(): + for xs in range(-3**2, 3**2 + 1): + for ys in range(xs, 3**2 + 1): + for op_axes in op_axes_list: + # last stride is reduced and because of that not + # important for this test, as it is the inner stride. + strides = (xs * a.itemsize, ys * a.itemsize, a.itemsize) + arr = np.lib.stride_tricks.as_strided(a, (3, 3, 3), strides) + + for skip in [0, 1]: + yield arr, op_axes, skip + + for arr, op_axes, skip in get_params(): + nditer2 = np.nditer([arr.copy(), None], + op_axes=op_axes, flags=flags, op_flags=op_flags, + op_dtypes=op_dtypes) + with nditer2: + nditer2.operands[-1][...] = 0 + nditer2.reset() + nditer2.iterindex = skip + + for (a2_in, b2_in) in nditer2: + b2_in += a2_in.astype(np.int_) + + comp_res = nditer2.operands[-1] + + for bufsize in range(3**3): + nditer1 = np.nditer([arr, None], + op_axes=op_axes, flags=flags, op_flags=op_flags, + buffersize=bufsize, op_dtypes=op_dtypes) + with nditer1: + nditer1.operands[-1][...] = 0 + nditer1.reset() + nditer1.iterindex = skip + + for (a1_in, b1_in) in nditer1: + b1_in += a1_in.astype(np.int_) + + res = nditer1.operands[-1] + assert_array_equal(res, comp_res) + + +def test_iter_buffered_reduce_reuse_core(): + # NumPy re-uses buffers for broadcast operands (as of writing when reading). + # Test this even if the offset is manually set at some point during + # the iteration. (not a particularly tricky path) + arr = np.empty((1, 6, 4, 1)).reshape(1, 6, 4, 1)[:, ::3, ::2, :] + arr[...] = np.arange(arr.size).reshape(arr.shape) + # First and last dimension are broadcast dimensions. + arr = np.broadcast_to(arr, (100, 2, 2, 2)) + + flags = ['buffered', 'reduce_ok', 'refs_ok', 'multi_index'] + op_flags = [('readonly',)] + + buffersize = 100 # small enough to not fit the whole array + it = np.nditer(arr, flags=flags, op_flags=op_flags, buffersize=100) + + # Iterate a bit (this will cause buffering internally) + expected = [next(it) for i in range(11)] + # Now, manually advance to inside the core (the +1) + it.iterindex = 10 * (2 * 2 * 2) + 1 + result = [next(it) for i in range(10)] + + assert expected[1:] == result + + +def test_iter_no_broadcast(): + # Test that the no_broadcast flag works + a = np.arange(24).reshape(2, 3, 4) + b = np.arange(6).reshape(2, 3, 1) + c = np.arange(12).reshape(3, 4) + + nditer([a, b, c], [], + [['readonly', 'no_broadcast'], + ['readonly'], ['readonly']]) + assert_raises(ValueError, nditer, [a, b, c], [], + [['readonly'], ['readonly', 'no_broadcast'], ['readonly']]) + assert_raises(ValueError, nditer, [a, b, c], [], + [['readonly'], ['readonly'], ['readonly', 'no_broadcast']]) + + +class TestIterNested: + + def test_basic(self): + # Test nested iteration basic usage + a = arange(12).reshape(2, 3, 2) + + i, j = np.nested_iters(a, [[0], [1, 2]]) + vals = [list(j) for _ in i] + assert_equal(vals, [[0, 1, 2, 3, 4, 5], [6, 7, 8, 9, 10, 11]]) + + i, j = np.nested_iters(a, [[0, 1], [2]]) + vals = [list(j) for _ in i] + assert_equal(vals, [[0, 1], [2, 3], [4, 5], [6, 7], [8, 9], [10, 11]]) + + i, j = np.nested_iters(a, [[0, 2], [1]]) + vals = [list(j) for _ in i] + assert_equal(vals, [[0, 2, 4], [1, 3, 5], [6, 8, 10], [7, 9, 11]]) + + def test_reorder(self): + # Test nested iteration basic usage + a = arange(12).reshape(2, 3, 2) + + # In 'K' order (default), it gets reordered + i, j = np.nested_iters(a, [[0], [2, 1]]) + vals = [list(j) for _ in i] + assert_equal(vals, [[0, 1, 2, 3, 4, 5], [6, 7, 8, 9, 10, 11]]) + + i, j = np.nested_iters(a, [[1, 0], [2]]) + vals = [list(j) for _ in i] + assert_equal(vals, [[0, 1], [2, 3], [4, 5], [6, 7], [8, 9], [10, 11]]) + + i, j = np.nested_iters(a, [[2, 0], [1]]) + vals = [list(j) for _ in i] + assert_equal(vals, [[0, 2, 4], [1, 3, 5], [6, 8, 10], [7, 9, 11]]) + + # In 'C' order, it doesn't + i, j = np.nested_iters(a, [[0], [2, 1]], order='C') + vals = [list(j) for _ in i] + assert_equal(vals, [[0, 2, 4, 1, 3, 5], [6, 8, 10, 7, 9, 11]]) + + i, j = np.nested_iters(a, [[1, 0], [2]], order='C') + vals = [list(j) for _ in i] + assert_equal(vals, [[0, 1], [6, 7], [2, 3], [8, 9], [4, 5], [10, 11]]) + + i, j = np.nested_iters(a, [[2, 0], [1]], order='C') + vals = [list(j) for _ in i] + assert_equal(vals, [[0, 2, 4], [6, 8, 10], [1, 3, 5], [7, 9, 11]]) + + def test_flip_axes(self): + # Test nested iteration with negative axes + a = arange(12).reshape(2, 3, 2)[::-1, ::-1, ::-1] + + # In 'K' order (default), the axes all get flipped + i, j = np.nested_iters(a, [[0], [1, 2]]) + vals = [list(j) for _ in i] + assert_equal(vals, [[0, 1, 2, 3, 4, 5], [6, 7, 8, 9, 10, 11]]) + + i, j = np.nested_iters(a, [[0, 1], [2]]) + vals = [list(j) for _ in i] + assert_equal(vals, [[0, 1], [2, 3], [4, 5], [6, 7], [8, 9], [10, 11]]) + + i, j = np.nested_iters(a, [[0, 2], [1]]) + vals = [list(j) for _ in i] + assert_equal(vals, [[0, 2, 4], [1, 3, 5], [6, 8, 10], [7, 9, 11]]) + + # In 'C' order, flipping axes is disabled + i, j = np.nested_iters(a, [[0], [1, 2]], order='C') + vals = [list(j) for _ in i] + assert_equal(vals, [[11, 10, 9, 8, 7, 6], [5, 4, 3, 2, 1, 0]]) + + i, j = np.nested_iters(a, [[0, 1], [2]], order='C') + vals = [list(j) for _ in i] + assert_equal(vals, [[11, 10], [9, 8], [7, 6], [5, 4], [3, 2], [1, 0]]) + + i, j = np.nested_iters(a, [[0, 2], [1]], order='C') + vals = [list(j) for _ in i] + assert_equal(vals, [[11, 9, 7], [10, 8, 6], [5, 3, 1], [4, 2, 0]]) + + def test_broadcast(self): + # Test nested iteration with broadcasting + a = arange(2).reshape(2, 1) + b = arange(3).reshape(1, 3) + + i, j = np.nested_iters([a, b], [[0], [1]]) + vals = [list(j) for _ in i] + assert_equal(vals, [[[0, 0], [0, 1], [0, 2]], [[1, 0], [1, 1], [1, 2]]]) + + i, j = np.nested_iters([a, b], [[1], [0]]) + vals = [list(j) for _ in i] + assert_equal(vals, [[[0, 0], [1, 0]], [[0, 1], [1, 1]], [[0, 2], [1, 2]]]) + + def test_dtype_copy(self): + # Test nested iteration with a copy to change dtype + + # copy + a = arange(6, dtype='i4').reshape(2, 3) + i, j = np.nested_iters(a, [[0], [1]], + op_flags=['readonly', 'copy'], + op_dtypes='f8') + assert_equal(j[0].dtype, np.dtype('f8')) + vals = [list(j) for _ in i] + assert_equal(vals, [[0, 1, 2], [3, 4, 5]]) + vals = None + + # writebackifcopy - using context manager + a = arange(6, dtype='f4').reshape(2, 3) + i, j = np.nested_iters(a, [[0], [1]], + op_flags=['readwrite', 'updateifcopy'], + casting='same_kind', + op_dtypes='f8') + with i, j: + assert_equal(j[0].dtype, np.dtype('f8')) + for x in i: + for y in j: + y[...] += 1 + assert_equal(a, [[0, 1, 2], [3, 4, 5]]) + assert_equal(a, [[1, 2, 3], [4, 5, 6]]) + + # writebackifcopy - using close() + a = arange(6, dtype='f4').reshape(2, 3) + i, j = np.nested_iters(a, [[0], [1]], + op_flags=['readwrite', 'updateifcopy'], + casting='same_kind', + op_dtypes='f8') + assert_equal(j[0].dtype, np.dtype('f8')) + for x in i: + for y in j: + y[...] += 1 + assert_equal(a, [[0, 1, 2], [3, 4, 5]]) + i.close() + j.close() + assert_equal(a, [[1, 2, 3], [4, 5, 6]]) + + def test_dtype_buffered(self): + # Test nested iteration with buffering to change dtype + + a = arange(6, dtype='f4').reshape(2, 3) + i, j = np.nested_iters(a, [[0], [1]], + flags=['buffered'], + op_flags=['readwrite'], + casting='same_kind', + op_dtypes='f8') + assert_equal(j[0].dtype, np.dtype('f8')) + for x in i: + for y in j: + y[...] += 1 + assert_equal(a, [[1, 2, 3], [4, 5, 6]]) + + def test_0d(self): + a = np.arange(12).reshape(2, 3, 2) + i, j = np.nested_iters(a, [[], [1, 0, 2]]) + vals = [list(j) for _ in i] + assert_equal(vals, [[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]]) + + i, j = np.nested_iters(a, [[1, 0, 2], []]) + vals = [list(j) for _ in i] + assert_equal(vals, [[0], [1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11]]) + + i, j, k = np.nested_iters(a, [[2, 0], [], [1]]) + vals = [] + for x in i: + for y in j: + vals.append(list(k)) + assert_equal(vals, [[0, 2, 4], [1, 3, 5], [6, 8, 10], [7, 9, 11]]) + + def test_iter_nested_iters_dtype_buffered(self): + # Test nested iteration with buffering to change dtype + + a = arange(6, dtype='f4').reshape(2, 3) + i, j = np.nested_iters(a, [[0], [1]], + flags=['buffered'], + op_flags=['readwrite'], + casting='same_kind', + op_dtypes='f8') + with i, j: + assert_equal(j[0].dtype, np.dtype('f8')) + for x in i: + for y in j: + y[...] += 1 + assert_equal(a, [[1, 2, 3], [4, 5, 6]]) + +def test_iter_reduction_error(): + + a = np.arange(6) + assert_raises(ValueError, nditer, [a, None], [], + [['readonly'], ['readwrite', 'allocate']], + op_axes=[[0], [-1]]) + + a = np.arange(6).reshape(2, 3) + assert_raises(ValueError, nditer, [a, None], ['external_loop'], + [['readonly'], ['readwrite', 'allocate']], + op_axes=[[0, 1], [-1, -1]]) + +def test_iter_reduction(): + # Test doing reductions with the iterator + + a = np.arange(6) + i = nditer([a, None], ['reduce_ok'], + [['readonly'], ['readwrite', 'allocate']], + op_axes=[[0], [-1]]) + # Need to initialize the output operand to the addition unit + with i: + i.operands[1][...] = 0 + # Do the reduction + for x, y in i: + y[...] += x + # Since no axes were specified, should have allocated a scalar + assert_equal(i.operands[1].ndim, 0) + assert_equal(i.operands[1], np.sum(a)) + + a = np.arange(6).reshape(2, 3) + i = nditer([a, None], ['reduce_ok', 'external_loop'], + [['readonly'], ['readwrite', 'allocate']], + op_axes=[[0, 1], [-1, -1]]) + # Need to initialize the output operand to the addition unit + with i: + i.operands[1][...] = 0 + # Reduction shape/strides for the output + assert_equal(i[1].shape, (6,)) + assert_equal(i[1].strides, (0,)) + # Do the reduction + for x, y in i: + # Use a for loop instead of ``y[...] += x`` + # (equivalent to ``y[...] = y[...].copy() + x``), + # because y has zero strides we use for the reduction + for j in range(len(y)): + y[j] += x[j] + # Since no axes were specified, should have allocated a scalar + assert_equal(i.operands[1].ndim, 0) + assert_equal(i.operands[1], np.sum(a)) + + # This is a tricky reduction case for the buffering double loop + # to handle + a = np.ones((2, 3, 5)) + it1 = nditer([a, None], ['reduce_ok', 'external_loop'], + [['readonly'], ['readwrite', 'allocate']], + op_axes=[None, [0, -1, 1]]) + it2 = nditer([a, None], ['reduce_ok', 'external_loop', + 'buffered', 'delay_bufalloc'], + [['readonly'], ['readwrite', 'allocate']], + op_axes=[None, [0, -1, 1]], buffersize=10) + with it1, it2: + it1.operands[1].fill(0) + it2.operands[1].fill(0) + it2.reset() + for x in it1: + x[1][...] += x[0] + for x in it2: + x[1][...] += x[0] + assert_equal(it1.operands[1], it2.operands[1]) + assert_equal(it2.operands[1].sum(), a.size) + +def test_iter_buffering_reduction(): + # Test doing buffered reductions with the iterator + + a = np.arange(6) + b = np.array(0., dtype='f8').byteswap() + b = b.view(b.dtype.newbyteorder()) + i = nditer([a, b], ['reduce_ok', 'buffered'], + [['readonly'], ['readwrite', 'nbo']], + op_axes=[[0], [-1]]) + with i: + assert_equal(i[1].dtype, np.dtype('f8')) + assert_(i[1].dtype != b.dtype) + # Do the reduction + for x, y in i: + y[...] += x + # Since no axes were specified, should have allocated a scalar + assert_equal(b, np.sum(a)) + + a = np.arange(6).reshape(2, 3) + b = np.array([0, 0], dtype='f8').byteswap() + b = b.view(b.dtype.newbyteorder()) + i = nditer([a, b], ['reduce_ok', 'external_loop', 'buffered'], + [['readonly'], ['readwrite', 'nbo']], + op_axes=[[0, 1], [0, -1]]) + # Reduction shape/strides for the output + with i: + assert_equal(i[1].shape, (3,)) + assert_equal(i[1].strides, (0,)) + # Do the reduction + for x, y in i: + # Use a for loop instead of ``y[...] += x`` + # (equivalent to ``y[...] = y[...].copy() + x``), + # because y has zero strides we use for the reduction + for j in range(len(y)): + y[j] += x[j] + assert_equal(b, np.sum(a, axis=1)) + + # Iterator inner double loop was wrong on this one + p = np.arange(2) + 1 + it = np.nditer([p, None], + ['delay_bufalloc', 'reduce_ok', 'buffered', 'external_loop'], + [['readonly'], ['readwrite', 'allocate']], + op_axes=[[-1, 0], [-1, -1]], + itershape=(2, 2)) + with it: + it.operands[1].fill(0) + it.reset() + assert_equal(it[0], [1, 2, 1, 2]) + + # Iterator inner loop should take argument contiguity into account + x = np.ones((7, 13, 8), np.int8)[4:6, 1:11:6, 1:5].transpose(1, 2, 0) + x[...] = np.arange(x.size).reshape(x.shape) + y_base = np.arange(4 * 4, dtype=np.int8).reshape(4, 4) + y_base_copy = y_base.copy() + y = y_base[::2, :, None] + + it = np.nditer([y, x], + ['buffered', 'external_loop', 'reduce_ok'], + [['readwrite'], ['readonly']]) + with it: + for a, b in it: + a.fill(2) + + assert_equal(y_base[1::2], y_base_copy[1::2]) + assert_equal(y_base[::2], 2) + +def test_iter_buffering_reduction_reuse_reduce_loops(): + # There was a bug triggering reuse of the reduce loop inappropriately, + # which caused processing to happen in unnecessarily small chunks + # and overran the buffer. + + a = np.zeros((2, 7)) + b = np.zeros((1, 7)) + it = np.nditer([a, b], flags=['reduce_ok', 'external_loop', 'buffered'], + op_flags=[['readonly'], ['readwrite']], + buffersize=5) + + with it: + bufsizes = [x.shape[0] for x, y in it] + assert_equal(bufsizes, [5, 2, 5, 2]) + assert_equal(sum(bufsizes), a.size) + +def test_iter_writemasked_badinput(): + a = np.zeros((2, 3)) + b = np.zeros((3,)) + m = np.array([[True, True, False], [False, True, False]]) + m2 = np.array([True, True, False]) + m3 = np.array([0, 1, 1], dtype='u1') + mbad1 = np.array([0, 1, 1], dtype='i1') + mbad2 = np.array([0, 1, 1], dtype='f4') + + # Need an 'arraymask' if any operand is 'writemasked' + assert_raises(ValueError, nditer, [a, m], [], + [['readwrite', 'writemasked'], ['readonly']]) + + # A 'writemasked' operand must not be readonly + assert_raises(ValueError, nditer, [a, m], [], + [['readonly', 'writemasked'], ['readonly', 'arraymask']]) + + # 'writemasked' and 'arraymask' may not be used together + assert_raises(ValueError, nditer, [a, m], [], + [['readonly'], ['readwrite', 'arraymask', 'writemasked']]) + + # 'arraymask' may only be specified once + assert_raises(ValueError, nditer, [a, m, m2], [], + [['readwrite', 'writemasked'], + ['readonly', 'arraymask'], + ['readonly', 'arraymask']]) + + # An 'arraymask' with nothing 'writemasked' also doesn't make sense + assert_raises(ValueError, nditer, [a, m], [], + [['readwrite'], ['readonly', 'arraymask']]) + + # A writemasked reduction requires a similarly smaller mask + assert_raises(ValueError, nditer, [a, b, m], ['reduce_ok'], + [['readonly'], + ['readwrite', 'writemasked'], + ['readonly', 'arraymask']]) + # But this should work with a smaller/equal mask to the reduction operand + np.nditer([a, b, m2], ['reduce_ok'], + [['readonly'], + ['readwrite', 'writemasked'], + ['readonly', 'arraymask']]) + # The arraymask itself cannot be a reduction + assert_raises(ValueError, nditer, [a, b, m2], ['reduce_ok'], + [['readonly'], + ['readwrite', 'writemasked'], + ['readwrite', 'arraymask']]) + + # A uint8 mask is ok too + np.nditer([a, m3], ['buffered'], + [['readwrite', 'writemasked'], + ['readonly', 'arraymask']], + op_dtypes=['f4', None], + casting='same_kind') + # An int8 mask isn't ok + assert_raises(TypeError, np.nditer, [a, mbad1], ['buffered'], + [['readwrite', 'writemasked'], + ['readonly', 'arraymask']], + op_dtypes=['f4', None], + casting='same_kind') + # A float32 mask isn't ok + assert_raises(TypeError, np.nditer, [a, mbad2], ['buffered'], + [['readwrite', 'writemasked'], + ['readonly', 'arraymask']], + op_dtypes=['f4', None], + casting='same_kind') + + +def _is_buffered(iterator): + try: + iterator.itviews + except ValueError: + return True + return False + +@pytest.mark.parametrize("arrs", + [np.zeros((3,), dtype='f8'), + np.zeros((9876, 3 * 5), dtype='f8')[::2, :], + np.zeros((4, 312, 124, 3), dtype='f8')[::2, :, ::2, :], + # Also test with the last dimension strided (so it does not fit if + # there is repeated access) + np.zeros((9,), dtype='f8')[::3], + np.zeros((9876, 3 * 10), dtype='f8')[::2, ::5], + np.zeros((4, 312, 124, 3), dtype='f8')[::2, :, ::2, ::-1]]) +def test_iter_writemasked(arrs): + # Note, the slicing above is to ensure that nditer cannot combine multiple + # axes into one. The repetition is just to make things a bit more + # interesting. + a = arrs.copy() + shape = a.shape + reps = shape[-1] // 3 + msk = np.empty(shape, dtype=bool) + msk[...] = [True, True, False] * reps + + # When buffering is unused, 'writemasked' effectively does nothing. + # It's up to the user of the iterator to obey the requested semantics. + it = np.nditer([a, msk], [], + [['readwrite', 'writemasked'], + ['readonly', 'arraymask']]) + with it: + for x, m in it: + x[...] = 1 + # Because we violated the semantics, all the values became 1 + assert_equal(a, np.broadcast_to([1, 1, 1] * reps, shape)) + + # Even if buffering is enabled, we still may be accessing the array + # directly. + it = np.nditer([a, msk], ['buffered'], + [['readwrite', 'writemasked'], + ['readonly', 'arraymask']]) + # @seberg: I honestly don't currently understand why a "buffered" iterator + # would end up not using a buffer for the small array here at least when + # "writemasked" is used, that seems confusing... Check by testing for + # actual memory overlap! + is_buffered = True + with it: + for x, m in it: + x[...] = 2.5 + if np.may_share_memory(x, a): + is_buffered = False + + if not is_buffered: + # Because we violated the semantics, all the values became 2.5 + assert_equal(a, np.broadcast_to([2.5, 2.5, 2.5] * reps, shape)) + else: + # For large sizes, the iterator may be buffered: + assert_equal(a, np.broadcast_to([2.5, 2.5, 1] * reps, shape)) + a[...] = 2.5 + + # If buffering will definitely happening, for instance because of + # a cast, only the items selected by the mask will be copied back from + # the buffer. + it = np.nditer([a, msk], ['buffered'], + [['readwrite', 'writemasked'], + ['readonly', 'arraymask']], + op_dtypes=['i8', None], + casting='unsafe') + with it: + for x, m in it: + x[...] = 3 + # Even though we violated the semantics, only the selected values + # were copied back + assert_equal(a, np.broadcast_to([3, 3, 2.5] * reps, shape)) + + +@pytest.mark.parametrize(["mask", "mask_axes"], [ + # Allocated operand (only broadcasts with -1) + (None, [-1, 0]), + # Reduction along the first dimension (with and without op_axes) + (np.zeros((1, 4), dtype="bool"), [0, 1]), + (np.zeros((1, 4), dtype="bool"), None), + # Test 0-D and -1 op_axes + (np.zeros(4, dtype="bool"), [-1, 0]), + (np.zeros((), dtype="bool"), [-1, -1]), + (np.zeros((), dtype="bool"), None)]) +def test_iter_writemasked_broadcast_error(mask, mask_axes): + # This assumes that a readwrite mask makes sense. This is likely not the + # case and should simply be deprecated. + arr = np.zeros((3, 4)) + itflags = ["reduce_ok"] + mask_flags = ["arraymask", "readwrite", "allocate"] + a_flags = ["writeonly", "writemasked"] + if mask_axes is None: + op_axes = None + else: + op_axes = [mask_axes, [0, 1]] + + with assert_raises(ValueError): + np.nditer((mask, arr), flags=itflags, op_flags=[mask_flags, a_flags], + op_axes=op_axes) + + +def test_iter_writemasked_decref(): + # force casting (to make it interesting) by using a structured dtype. + arr = np.arange(10000).astype(">i,O") + original = arr.copy() + mask = np.random.randint(0, 2, size=10000).astype(bool) + + it = np.nditer([arr, mask], ['buffered', "refs_ok"], + [['readwrite', 'writemasked'], + ['readonly', 'arraymask']], + op_dtypes=[" string -> longdouble` for the + # conversion. But Python may refuse `str(int)` for huge ints. + # In that case, RuntimeWarning would be correct, but conversion + # fails earlier (seems to happen on 32bit linux, possibly only debug). + if dtype in "gG": + try: + str(too_big_int) + except ValueError: + pytest.skip("`huge_int -> string -> longdouble` failed") + + # Otherwise, we overflow to infinity: + with pytest.warns(RuntimeWarning): + res = scalar_type(1) + too_big_int + assert res.dtype == dtype + assert res == np.inf + + with pytest.warns(RuntimeWarning): + # We force the dtype here, since windows may otherwise pick the + # double instead of the longdouble loop. That leads to slightly + # different results (conversion of the int fails as above). + res = np.add(np.array(1, dtype=dtype), too_big_int, dtype=dtype) + assert res.dtype == dtype + assert res == np.inf + + +@pytest.mark.parametrize("op", [operator.add, operator.pow]) +def test_weak_promotion_scalar_path(op): + # Some additional paths exercising the weak scalars. + + # Integer path: + res = op(np.uint8(3), 5) + assert res == op(3, 5) + assert res.dtype == np.uint8 or res.dtype == bool # noqa: PLR1714 + + with pytest.raises(OverflowError): + op(np.uint8(3), 1000) + + # Float path: + res = op(np.float32(3), 5.) + assert res == op(3., 5.) + assert res.dtype == np.float32 or res.dtype == bool # noqa: PLR1714 + + +def test_nep50_complex_promotion(): + with pytest.warns(RuntimeWarning, match=".*overflow"): + res = np.complex64(3) + complex(2**300) + + assert type(res) == np.complex64 + + +def test_nep50_integer_conversion_errors(): + # Implementation for error paths is mostly missing (as of writing) + with pytest.raises(OverflowError, match=".*uint8"): + np.array([1], np.uint8) + 300 + + with pytest.raises(OverflowError, match=".*uint8"): + np.uint8(1) + 300 + + # Error message depends on platform (maybe unsigned int or unsigned long) + with pytest.raises(OverflowError, + match="Python integer -1 out of bounds for uint8"): + np.uint8(1) + -1 + + +def test_nep50_with_axisconcatenator(): + # Concatenate/r_ does not promote, so this has to error: + with pytest.raises(OverflowError): + np.r_[np.arange(5, dtype=np.int8), 255] + + +@pytest.mark.parametrize("ufunc", [np.add, np.power]) +def test_nep50_huge_integers(ufunc): + # Very large integers are complicated, because they go to uint64 or + # object dtype. This tests covers a few possible paths. + with pytest.raises(OverflowError): + ufunc(np.int64(0), 2**63) # 2**63 too large for int64 + + with pytest.raises(OverflowError): + ufunc(np.uint64(0), 2**64) # 2**64 cannot be represented by uint64 + + # However, 2**63 can be represented by the uint64 (and that is used): + res = ufunc(np.uint64(1), 2**63) + + assert res.dtype == np.uint64 + assert res == ufunc(1, 2**63, dtype=object) + + # The following paths fail to warn correctly about the change: + with pytest.raises(OverflowError): + ufunc(np.int64(1), 2**63) # np.array(2**63) would go to uint + + with pytest.raises(OverflowError): + ufunc(np.int64(1), 2**100) # np.array(2**100) would go to object + + # This would go to object and thus a Python float, not a NumPy one: + res = ufunc(1.0, 2**100) + assert isinstance(res, np.float64) + + +def test_nep50_in_concat_and_choose(): + res = np.concatenate([np.float32(1), 1.], axis=None) + assert res.dtype == "float32" + + res = np.choose(1, [np.float32(1), 1.]) + assert res.dtype == "float32" + + +@pytest.mark.parametrize("expected,dtypes,optional_dtypes", [ + (np.float32, [np.float32], + [np.float16, 0.0, np.uint16, np.int16, np.int8, 0]), + (np.complex64, [np.float32, 0j], + [np.float16, 0.0, np.uint16, np.int16, np.int8, 0]), + (np.float32, [np.int16, np.uint16, np.float16], + [np.int8, np.uint8, np.float32, 0., 0]), + (np.int32, [np.int16, np.uint16], + [np.int8, np.uint8, 0, np.bool]), + ]) +@hypothesis.given(data=strategies.data()) +def test_expected_promotion(expected, dtypes, optional_dtypes, data): + # Sample randomly while ensuring "dtypes" is always present: + optional = data.draw(strategies.lists( + strategies.sampled_from(dtypes + optional_dtypes))) + all_dtypes = dtypes + optional + dtypes_sample = data.draw(strategies.permutations(all_dtypes)) + + res = np.result_type(*dtypes_sample) + assert res == expected + + +@pytest.mark.parametrize("sctype", + [np.int8, np.int16, np.int32, np.int64, + np.uint8, np.uint16, np.uint32, np.uint64]) +@pytest.mark.parametrize("other_val", + [-2 * 100, -1, 0, 9, 10, 11, 2**63, 2 * 100]) +@pytest.mark.parametrize("comp", + [operator.eq, operator.ne, operator.le, operator.lt, + operator.ge, operator.gt]) +def test_integer_comparison(sctype, other_val, comp): + # Test that comparisons with integers (especially out-of-bound) ones + # works correctly. + val_obj = 10 + val = sctype(val_obj) + # Check that the scalar behaves the same as the python int: + assert comp(10, other_val) == comp(val, other_val) + assert comp(val, other_val) == comp(10, other_val) + # Except for the result type: + assert type(comp(val, other_val)) is np.bool + + # Check that the integer array and object array behave the same: + val_obj = np.array([10, 10], dtype=object) + val = val_obj.astype(sctype) + assert_array_equal(comp(val_obj, other_val), comp(val, other_val)) + assert_array_equal(comp(other_val, val_obj), comp(other_val, val)) + + +@pytest.mark.parametrize("arr", [ + np.ones((100, 100), dtype=np.uint8)[::2], # not trivially iterable + np.ones(20000, dtype=">u4"), # cast and >buffersize + np.ones(100, dtype=">u4"), # fast path compatible with cast +]) +def test_integer_comparison_with_cast(arr): + # Similar to above, but mainly test a few cases that cover the slow path + # the test is limited to unsigned ints and -1 for simplicity. + res = arr >= -1 + assert_array_equal(res, np.ones_like(arr, dtype=bool)) + res = arr < -1 + assert_array_equal(res, np.zeros_like(arr, dtype=bool)) + + +@pytest.mark.parametrize("comp", + [np.equal, np.not_equal, np.less_equal, np.less, + np.greater_equal, np.greater]) +def test_integer_integer_comparison(comp): + # Test that the NumPy comparison ufuncs work with large Python integers + assert comp(2**200, -2**200) == comp(2**200, -2**200, dtype=object) + + +def create_with_scalar(sctype, value): + return sctype(value) + + +def create_with_array(sctype, value): + return np.array([value], dtype=sctype) + + +@pytest.mark.parametrize("sctype", + [np.int8, np.int16, np.int32, np.int64, + np.uint8, np.uint16, np.uint32, np.uint64]) +@pytest.mark.parametrize("create", [create_with_scalar, create_with_array]) +def test_oob_creation(sctype, create): + iinfo = np.iinfo(sctype) + + with pytest.raises(OverflowError): + create(sctype, iinfo.min - 1) + + with pytest.raises(OverflowError): + create(sctype, iinfo.max + 1) + + with pytest.raises(OverflowError): + create(sctype, str(iinfo.min - 1)) + + with pytest.raises(OverflowError): + create(sctype, str(iinfo.max + 1)) + + assert create(sctype, iinfo.min) == iinfo.min + assert create(sctype, iinfo.max) == iinfo.max diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_numeric.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_numeric.py new file mode 100644 index 0000000000000000000000000000000000000000..1047f4ce28d3aea8243ef32d005a71335217963b --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_numeric.py @@ -0,0 +1,4301 @@ +import inspect +import itertools +import math +import platform +import sys +import warnings +from decimal import Decimal + +import pytest +from hypothesis import given, strategies as st +from hypothesis.extra import numpy as hynp + +import numpy as np +from numpy import ma +from numpy._core import sctypes +from numpy._core._rational_tests import rational +from numpy._core.numerictypes import obj2sctype +from numpy.exceptions import AxisError +from numpy.random import rand, randint, randn +from numpy.testing import ( + HAS_REFCOUNT, + IS_PYPY, + IS_WASM, + assert_, + assert_almost_equal, + assert_array_almost_equal, + assert_array_equal, + assert_array_max_ulp, + assert_equal, + assert_raises, + assert_raises_regex, +) + + +class TestResize: + def test_copies(self): + A = np.array([[1, 2], [3, 4]]) + Ar1 = np.array([[1, 2, 3, 4], [1, 2, 3, 4]]) + assert_equal(np.resize(A, (2, 4)), Ar1) + + Ar2 = np.array([[1, 2], [3, 4], [1, 2], [3, 4]]) + assert_equal(np.resize(A, (4, 2)), Ar2) + + Ar3 = np.array([[1, 2, 3], [4, 1, 2], [3, 4, 1], [2, 3, 4]]) + assert_equal(np.resize(A, (4, 3)), Ar3) + + def test_repeats(self): + A = np.array([1, 2, 3]) + Ar1 = np.array([[1, 2, 3, 1], [2, 3, 1, 2]]) + assert_equal(np.resize(A, (2, 4)), Ar1) + + Ar2 = np.array([[1, 2], [3, 1], [2, 3], [1, 2]]) + assert_equal(np.resize(A, (4, 2)), Ar2) + + Ar3 = np.array([[1, 2, 3], [1, 2, 3], [1, 2, 3], [1, 2, 3]]) + assert_equal(np.resize(A, (4, 3)), Ar3) + + def test_zeroresize(self): + A = np.array([[1, 2], [3, 4]]) + Ar = np.resize(A, (0,)) + assert_array_equal(Ar, np.array([])) + assert_equal(A.dtype, Ar.dtype) + + Ar = np.resize(A, (0, 2)) + assert_equal(Ar.shape, (0, 2)) + + Ar = np.resize(A, (2, 0)) + assert_equal(Ar.shape, (2, 0)) + + def test_reshape_from_zero(self): + # See also gh-6740 + A = np.zeros(0, dtype=[('a', np.float32)]) + Ar = np.resize(A, (2, 1)) + assert_array_equal(Ar, np.zeros((2, 1), Ar.dtype)) + assert_equal(A.dtype, Ar.dtype) + + def test_negative_resize(self): + A = np.arange(0, 10, dtype=np.float32) + new_shape = (-10, -1) + with pytest.raises(ValueError, match=r"negative"): + np.resize(A, new_shape=new_shape) + + def test_unsigned_resize(self): + # ensure unsigned integer sizes don't lead to underflows + for dt_pair in [(np.int32, np.uint32), (np.int64, np.uint64)]: + arr = np.array([[23, 95], [66, 37]]) + assert_array_equal(np.resize(arr, dt_pair[0](1)), + np.resize(arr, dt_pair[1](1))) + + def test_subclass(self): + class MyArray(np.ndarray): + __array_priority__ = 1. + + my_arr = np.array([1]).view(MyArray) + assert type(np.resize(my_arr, 5)) is MyArray + assert type(np.resize(my_arr, 0)) is MyArray + + my_arr = np.array([]).view(MyArray) + assert type(np.resize(my_arr, 5)) is MyArray + + +class TestNonarrayArgs: + # check that non-array arguments to functions wrap them in arrays + def test_choose(self): + choices = [[0, 1, 2], + [3, 4, 5], + [5, 6, 7]] + tgt = [5, 1, 5] + a = [2, 0, 1] + + out = np.choose(a, choices) + assert_equal(out, tgt) + + def test_clip(self): + arr = [-1, 5, 2, 3, 10, -4, -9] + out = np.clip(arr, 2, 7) + tgt = [2, 5, 2, 3, 7, 2, 2] + assert_equal(out, tgt) + + def test_compress(self): + arr = [[0, 1, 2, 3, 4], + [5, 6, 7, 8, 9]] + tgt = [[5, 6, 7, 8, 9]] + out = np.compress([0, 1], arr, axis=0) + assert_equal(out, tgt) + + def test_count_nonzero(self): + arr = [[0, 1, 7, 0, 0], + [3, 0, 0, 2, 19]] + tgt = np.array([2, 3]) + out = np.count_nonzero(arr, axis=1) + assert_equal(out, tgt) + + def test_diagonal(self): + a = [[0, 1, 2, 3], + [4, 5, 6, 7], + [8, 9, 10, 11]] + out = np.diagonal(a) + tgt = [0, 5, 10] + + assert_equal(out, tgt) + + def test_mean(self): + A = [[1, 2, 3], [4, 5, 6]] + assert_(np.mean(A) == 3.5) + assert_(np.all(np.mean(A, 0) == np.array([2.5, 3.5, 4.5]))) + assert_(np.all(np.mean(A, 1) == np.array([2., 5.]))) + + with warnings.catch_warnings(record=True) as w: + warnings.filterwarnings('always', '', RuntimeWarning) + assert_(np.isnan(np.mean([]))) + assert_(w[0].category is RuntimeWarning) + + def test_ptp(self): + a = [3, 4, 5, 10, -3, -5, 6.0] + assert_equal(np.ptp(a, axis=0), 15.0) + + def test_prod(self): + arr = [[1, 2, 3, 4], + [5, 6, 7, 9], + [10, 3, 4, 5]] + tgt = [24, 1890, 600] + + assert_equal(np.prod(arr, axis=-1), tgt) + + def test_ravel(self): + a = [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]] + tgt = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12] + assert_equal(np.ravel(a), tgt) + + def test_repeat(self): + a = [1, 2, 3] + tgt = [1, 1, 2, 2, 3, 3] + + out = np.repeat(a, 2) + assert_equal(out, tgt) + + def test_reshape(self): + arr = [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]] + tgt = [[1, 2, 3, 4, 5, 6], [7, 8, 9, 10, 11, 12]] + assert_equal(np.reshape(arr, (2, 6)), tgt) + + def test_reshape_shape_arg(self): + arr = np.arange(12) + shape = (3, 4) + expected = arr.reshape(shape) + + with pytest.raises( + TypeError, + match=r"reshape\(\) missing 1 required positional " + "argument: 'shape'" + ): + np.reshape(arr) + + assert_equal(np.reshape(arr, shape), expected) + assert_equal(np.reshape(arr, shape, order="C"), expected) + assert_equal(np.reshape(arr, shape, "C"), expected) + assert_equal(np.reshape(arr, shape=shape), expected) + assert_equal(np.reshape(arr, shape=shape, order="C"), expected) + + def test_reshape_copy_arg(self): + arr = np.arange(24).reshape(2, 3, 4) + arr_f_ord = np.array(arr, order="F") + shape = (12, 2) + + assert np.shares_memory(np.reshape(arr, shape), arr) + assert np.shares_memory(np.reshape(arr, shape, order="C"), arr) + assert np.shares_memory( + np.reshape(arr_f_ord, shape, order="F"), arr_f_ord) + assert np.shares_memory(np.reshape(arr, shape, copy=None), arr) + assert np.shares_memory(np.reshape(arr, shape, copy=False), arr) + assert np.shares_memory(arr.reshape(shape, copy=False), arr) + assert not np.shares_memory(np.reshape(arr, shape, copy=True), arr) + assert not np.shares_memory( + np.reshape(arr, shape, order="C", copy=True), arr) + assert not np.shares_memory( + np.reshape(arr, shape, order="F", copy=True), arr) + assert not np.shares_memory( + np.reshape(arr, shape, order="F", copy=None), arr) + + err_msg = "Unable to avoid creating a copy while reshaping." + with pytest.raises(ValueError, match=err_msg): + np.reshape(arr, shape, order="F", copy=False) + with pytest.raises(ValueError, match=err_msg): + np.reshape(arr_f_ord, shape, order="C", copy=False) + + def test_round(self): + arr = [1.56, 72.54, 6.35, 3.25] + tgt = [1.6, 72.5, 6.4, 3.2] + assert_equal(np.around(arr, decimals=1), tgt) + s = np.float64(1.) + assert_(isinstance(s.round(), np.float64)) + assert_equal(s.round(), 1.) + + @pytest.mark.parametrize('dtype', [ + np.int8, np.int16, np.int32, np.int64, + np.uint8, np.uint16, np.uint32, np.uint64, + np.float16, np.float32, np.float64, + ]) + def test_dunder_round(self, dtype): + s = dtype(1) + assert_(isinstance(round(s), int)) + assert_(isinstance(round(s, None), int)) + assert_(isinstance(round(s, ndigits=None), int)) + assert_equal(round(s), 1) + assert_equal(round(s, None), 1) + assert_equal(round(s, ndigits=None), 1) + + @pytest.mark.parametrize('val, ndigits', [ + pytest.param(2**31 - 1, -1, + marks=pytest.mark.skip(reason="Out of range of int32") + ), + (2**31 - 1, 1 - math.ceil(math.log10(2**31 - 1))), + (2**31 - 1, -math.ceil(math.log10(2**31 - 1))) + ]) + def test_dunder_round_edgecases(self, val, ndigits): + assert_equal(round(val, ndigits), round(np.int32(val), ndigits)) + + def test_dunder_round_accuracy(self): + f = np.float64(5.1 * 10**73) + assert_(isinstance(round(f, -73), np.float64)) + assert_array_max_ulp(round(f, -73), 5.0 * 10**73) + assert_(isinstance(round(f, ndigits=-73), np.float64)) + assert_array_max_ulp(round(f, ndigits=-73), 5.0 * 10**73) + + i = np.int64(501) + assert_(isinstance(round(i, -2), np.int64)) + assert_array_max_ulp(round(i, -2), 500) + assert_(isinstance(round(i, ndigits=-2), np.int64)) + assert_array_max_ulp(round(i, ndigits=-2), 500) + + @pytest.mark.xfail(raises=AssertionError, reason="gh-15896") + def test_round_py_consistency(self): + f = 5.1 * 10**73 + assert_equal(round(np.float64(f), -73), round(f, -73)) + + def test_searchsorted(self): + arr = [-8, -5, -1, 3, 6, 10] + out = np.searchsorted(arr, 0) + assert_equal(out, 3) + + def test_size(self): + A = [[1, 2, 3], [4, 5, 6]] + assert_(np.size(A) == 6) + assert_(np.size(A, 0) == 2) + assert_(np.size(A, 1) == 3) + assert_(np.size(A, ()) == 1) + assert_(np.size(A, (0,)) == 2) + assert_(np.size(A, (1,)) == 3) + assert_(np.size(A, (0, 1)) == 6) + + def test_squeeze(self): + A = [[[1, 1, 1], [2, 2, 2], [3, 3, 3]]] + assert_equal(np.squeeze(A).shape, (3, 3)) + assert_equal(np.squeeze(np.zeros((1, 3, 1))).shape, (3,)) + assert_equal(np.squeeze(np.zeros((1, 3, 1)), axis=0).shape, (3, 1)) + assert_equal(np.squeeze(np.zeros((1, 3, 1)), axis=-1).shape, (1, 3)) + assert_equal(np.squeeze(np.zeros((1, 3, 1)), axis=2).shape, (1, 3)) + assert_equal(np.squeeze([np.zeros((3, 1))]).shape, (3,)) + assert_equal(np.squeeze([np.zeros((3, 1))], axis=0).shape, (3, 1)) + assert_equal(np.squeeze([np.zeros((3, 1))], axis=2).shape, (1, 3)) + assert_equal(np.squeeze([np.zeros((3, 1))], axis=-1).shape, (1, 3)) + + def test_std(self): + A = [[1, 2, 3], [4, 5, 6]] + assert_almost_equal(np.std(A), 1.707825127659933) + assert_almost_equal(np.std(A, 0), np.array([1.5, 1.5, 1.5])) + assert_almost_equal(np.std(A, 1), np.array([0.81649658, 0.81649658])) + + with warnings.catch_warnings(record=True) as w: + warnings.filterwarnings('always', '', RuntimeWarning) + assert_(np.isnan(np.std([]))) + assert_(w[0].category is RuntimeWarning) + + def test_swapaxes(self): + tgt = [[[0, 4], [2, 6]], [[1, 5], [3, 7]]] + a = [[[0, 1], [2, 3]], [[4, 5], [6, 7]]] + out = np.swapaxes(a, 0, 2) + assert_equal(out, tgt) + + def test_sum(self): + m = [[1, 2, 3], + [4, 5, 6], + [7, 8, 9]] + tgt = [[6], [15], [24]] + out = np.sum(m, axis=1, keepdims=True) + + assert_equal(tgt, out) + + def test_take(self): + tgt = [2, 3, 5] + indices = [1, 2, 4] + a = [1, 2, 3, 4, 5] + + out = np.take(a, indices) + assert_equal(out, tgt) + + pairs = [ + (np.int32, np.int32), (np.int32, np.int64), + (np.int64, np.int32), (np.int64, np.int64) + ] + for array_type, indices_type in pairs: + x = np.array([1, 2, 3, 4, 5], dtype=array_type) + ind = np.array([0, 2, 2, 3], dtype=indices_type) + tgt = np.array([1, 3, 3, 4], dtype=array_type) + out = np.take(x, ind) + assert_equal(out, tgt) + assert_equal(out.dtype, tgt.dtype) + + def test_trace(self): + c = [[1, 2], [3, 4], [5, 6]] + assert_equal(np.trace(c), 5) + + def test_transpose(self): + arr = [[1, 2], [3, 4], [5, 6]] + tgt = [[1, 3, 5], [2, 4, 6]] + assert_equal(np.transpose(arr, (1, 0)), tgt) + assert_equal(np.transpose(arr, (-1, -2)), tgt) + assert_equal(np.matrix_transpose(arr), tgt) + + def test_var(self): + A = [[1, 2, 3], [4, 5, 6]] + assert_almost_equal(np.var(A), 2.9166666666666665) + assert_almost_equal(np.var(A, 0), np.array([2.25, 2.25, 2.25])) + assert_almost_equal(np.var(A, 1), np.array([0.66666667, 0.66666667])) + + with warnings.catch_warnings(record=True) as w: + warnings.filterwarnings('always', '', RuntimeWarning) + assert_(np.isnan(np.var([]))) + assert_(w[0].category is RuntimeWarning) + + B = np.array([None, 0]) + B[0] = 1j + assert_almost_equal(np.var(B), 0.25) + + def test_std_with_mean_keyword(self): + # Setting the seed to make the test reproducible + rng = np.random.RandomState(1234) + A = rng.randn(10, 20, 5) + 0.5 + + mean_out = np.zeros((10, 1, 5)) + std_out = np.zeros((10, 1, 5)) + + mean = np.mean(A, + out=mean_out, + axis=1, + keepdims=True) + + # The returned object should be the object specified during calling + assert mean_out is mean + + std = np.std(A, + out=std_out, + axis=1, + keepdims=True, + mean=mean) + + # The returned object should be the object specified during calling + assert std_out is std + + # Shape of returned mean and std should be same + assert std.shape == mean.shape + assert std.shape == (10, 1, 5) + + # Output should be the same as from the individual algorithms + std_old = np.std(A, axis=1, keepdims=True) + + assert std_old.shape == mean.shape + assert_almost_equal(std, std_old) + + def test_var_with_mean_keyword(self): + # Setting the seed to make the test reproducible + rng = np.random.RandomState(1234) + A = rng.randn(10, 20, 5) + 0.5 + + mean_out = np.zeros((10, 1, 5)) + var_out = np.zeros((10, 1, 5)) + + mean = np.mean(A, + out=mean_out, + axis=1, + keepdims=True) + + # The returned object should be the object specified during calling + assert mean_out is mean + + var = np.var(A, + out=var_out, + axis=1, + keepdims=True, + mean=mean) + + # The returned object should be the object specified during calling + assert var_out is var + + # Shape of returned mean and var should be same + assert var.shape == mean.shape + assert var.shape == (10, 1, 5) + + # Output should be the same as from the individual algorithms + var_old = np.var(A, axis=1, keepdims=True) + + assert var_old.shape == mean.shape + assert_almost_equal(var, var_old) + + def test_std_with_mean_keyword_keepdims_false(self): + rng = np.random.RandomState(1234) + A = rng.randn(10, 20, 5) + 0.5 + + mean = np.mean(A, + axis=1, + keepdims=True) + + std = np.std(A, + axis=1, + keepdims=False, + mean=mean) + + # Shape of returned mean and std should be same + assert std.shape == (10, 5) + + # Output should be the same as from the individual algorithms + std_old = np.std(A, axis=1, keepdims=False) + mean_old = np.mean(A, axis=1, keepdims=False) + + assert std_old.shape == mean_old.shape + assert_equal(std, std_old) + + def test_var_with_mean_keyword_keepdims_false(self): + rng = np.random.RandomState(1234) + A = rng.randn(10, 20, 5) + 0.5 + + mean = np.mean(A, + axis=1, + keepdims=True) + + var = np.var(A, + axis=1, + keepdims=False, + mean=mean) + + # Shape of returned mean and var should be same + assert var.shape == (10, 5) + + # Output should be the same as from the individual algorithms + var_old = np.var(A, axis=1, keepdims=False) + mean_old = np.mean(A, axis=1, keepdims=False) + + assert var_old.shape == mean_old.shape + assert_equal(var, var_old) + + def test_std_with_mean_keyword_where_nontrivial(self): + rng = np.random.RandomState(1234) + A = rng.randn(10, 20, 5) + 0.5 + + where = A > 0.5 + + mean = np.mean(A, + axis=1, + keepdims=True, + where=where) + + std = np.std(A, + axis=1, + keepdims=False, + mean=mean, + where=where) + + # Shape of returned mean and std should be same + assert std.shape == (10, 5) + + # Output should be the same as from the individual algorithms + std_old = np.std(A, axis=1, where=where) + mean_old = np.mean(A, axis=1, where=where) + + assert std_old.shape == mean_old.shape + assert_equal(std, std_old) + + def test_var_with_mean_keyword_where_nontrivial(self): + rng = np.random.RandomState(1234) + A = rng.randn(10, 20, 5) + 0.5 + + where = A > 0.5 + + mean = np.mean(A, + axis=1, + keepdims=True, + where=where) + + var = np.var(A, + axis=1, + keepdims=False, + mean=mean, + where=where) + + # Shape of returned mean and var should be same + assert var.shape == (10, 5) + + # Output should be the same as from the individual algorithms + var_old = np.var(A, axis=1, where=where) + mean_old = np.mean(A, axis=1, where=where) + + assert var_old.shape == mean_old.shape + assert_equal(var, var_old) + + def test_std_with_mean_keyword_multiple_axis(self): + # Setting the seed to make the test reproducible + rng = np.random.RandomState(1234) + A = rng.randn(10, 20, 5) + 0.5 + + axis = (0, 2) + + mean = np.mean(A, + out=None, + axis=axis, + keepdims=True) + + std = np.std(A, + out=None, + axis=axis, + keepdims=False, + mean=mean) + + # Shape of returned mean and std should be same + assert std.shape == (20,) + + # Output should be the same as from the individual algorithms + std_old = np.std(A, axis=axis, keepdims=False) + + assert_almost_equal(std, std_old) + + def test_std_with_mean_keyword_axis_None(self): + # Setting the seed to make the test reproducible + rng = np.random.RandomState(1234) + A = rng.randn(10, 20, 5) + 0.5 + + axis = None + + mean = np.mean(A, + out=None, + axis=axis, + keepdims=True) + + std = np.std(A, + out=None, + axis=axis, + keepdims=False, + mean=mean) + + # Shape of returned mean and std should be same + assert std.shape == () + + # Output should be the same as from the individual algorithms + std_old = np.std(A, axis=axis, keepdims=False) + + assert_almost_equal(std, std_old) + + def test_std_with_mean_keyword_keepdims_true_masked(self): + + A = ma.array([[2., 3., 4., 5.], + [1., 2., 3., 4.]], + mask=[[True, False, True, False], + [True, False, True, False]]) + + B = ma.array([[100., 3., 104., 5.], + [101., 2., 103., 4.]], + mask=[[True, False, True, False], + [True, False, True, False]]) + + mean_out = ma.array([[0., 0., 0., 0.]], + mask=[[False, False, False, False]]) + std_out = ma.array([[0., 0., 0., 0.]], + mask=[[False, False, False, False]]) + + axis = 0 + + mean = np.mean(A, out=mean_out, + axis=axis, keepdims=True) + + std = np.std(A, out=std_out, + axis=axis, keepdims=True, + mean=mean) + + # Shape of returned mean and std should be same + assert std.shape == mean.shape + assert std.shape == (1, 4) + + # Output should be the same as from the individual algorithms + std_old = np.std(A, axis=axis, keepdims=True) + mean_old = np.mean(A, axis=axis, keepdims=True) + + assert std_old.shape == mean_old.shape + assert_almost_equal(std, std_old) + assert_almost_equal(mean, mean_old) + + assert mean_out is mean + assert std_out is std + + # masked elements should be ignored + mean_b = np.mean(B, axis=axis, keepdims=True) + std_b = np.std(B, axis=axis, keepdims=True, mean=mean_b) + assert_almost_equal(std, std_b) + assert_almost_equal(mean, mean_b) + + def test_var_with_mean_keyword_keepdims_true_masked(self): + + A = ma.array([[2., 3., 4., 5.], + [1., 2., 3., 4.]], + mask=[[True, False, True, False], + [True, False, True, False]]) + + B = ma.array([[100., 3., 104., 5.], + [101., 2., 103., 4.]], + mask=[[True, False, True, False], + [True, False, True, False]]) + + mean_out = ma.array([[0., 0., 0., 0.]], + mask=[[False, False, False, False]]) + var_out = ma.array([[0., 0., 0., 0.]], + mask=[[False, False, False, False]]) + + axis = 0 + + mean = np.mean(A, out=mean_out, + axis=axis, keepdims=True) + + var = np.var(A, out=var_out, + axis=axis, keepdims=True, + mean=mean) + + # Shape of returned mean and var should be same + assert var.shape == mean.shape + assert var.shape == (1, 4) + + # Output should be the same as from the individual algorithms + var_old = np.var(A, axis=axis, keepdims=True) + mean_old = np.mean(A, axis=axis, keepdims=True) + + assert var_old.shape == mean_old.shape + assert_almost_equal(var, var_old) + assert_almost_equal(mean, mean_old) + + assert mean_out is mean + assert var_out is var + + # masked elements should be ignored + mean_b = np.mean(B, axis=axis, keepdims=True) + var_b = np.var(B, axis=axis, keepdims=True, mean=mean_b) + assert_almost_equal(var, var_b) + assert_almost_equal(mean, mean_b) + + +class TestIsscalar: + def test_isscalar(self): + assert_(np.isscalar(3.1)) + assert_(np.isscalar(np.int16(12345))) + assert_(np.isscalar(False)) + assert_(np.isscalar('numpy')) + assert_(not np.isscalar([3.1])) + assert_(not np.isscalar(None)) + + # PEP 3141 + from fractions import Fraction + assert_(np.isscalar(Fraction(5, 17))) + from numbers import Number + assert_(np.isscalar(Number())) + + +class TestBoolScalar: + def test_logical(self): + f = np.False_ + t = np.True_ + s = "xyz" + assert_((t and s) is s) + assert_((f and s) is f) + + def test_bitwise_or(self): + f = np.False_ + t = np.True_ + assert_((t | t) is t) + assert_((f | t) is t) + assert_((t | f) is t) + assert_((f | f) is f) + + def test_bitwise_and(self): + f = np.False_ + t = np.True_ + assert_((t & t) is t) + assert_((f & t) is f) + assert_((t & f) is f) + assert_((f & f) is f) + + def test_bitwise_xor(self): + f = np.False_ + t = np.True_ + assert_((t ^ t) is f) + assert_((f ^ t) is t) + assert_((t ^ f) is t) + assert_((f ^ f) is f) + + +class TestBoolArray: + def _create_bool_arrays(self): + # offset for simd tests + t = np.array([True] * 41, dtype=bool)[1::] + f = np.array([False] * 41, dtype=bool)[1::] + o = np.array([False] * 42, dtype=bool)[2::] + nm = f.copy() + im = t.copy() + nm[3] = True + nm[-2] = True + im[3] = False + im[-2] = False + return t, f, o, nm, im + + def test_all_any(self): + t, f, _, nm, im = self._create_bool_arrays() + assert_(t.all()) + assert_(t.any()) + assert_(not f.all()) + assert_(not f.any()) + assert_(nm.any()) + assert_(im.any()) + assert_(not nm.all()) + assert_(not im.all()) + # check bad element in all positions + for i in range(256 - 7): + d = np.array([False] * 256, dtype=bool)[7::] + d[i] = True + assert_(np.any(d)) + e = np.array([True] * 256, dtype=bool)[7::] + e[i] = False + assert_(not np.all(e)) + assert_array_equal(e, ~d) + # big array test for blocked libc loops + for i in list(range(9, 6000, 507)) + [7764, 90021, -10]: + d = np.array([False] * 100043, dtype=bool) + d[i] = True + assert_(np.any(d), msg=f"{i!r}") + e = np.array([True] * 100043, dtype=bool) + e[i] = False + assert_(not np.all(e), msg=f"{i!r}") + + def test_logical_not_abs(self): + t, f, o, nm, im = self._create_bool_arrays() + assert_array_equal(~t, f) + assert_array_equal(np.abs(~t), f) + assert_array_equal(np.abs(~f), t) + assert_array_equal(np.abs(f), f) + assert_array_equal(~np.abs(f), t) + assert_array_equal(~np.abs(t), f) + assert_array_equal(np.abs(~nm), im) + np.logical_not(t, out=o) + assert_array_equal(o, f) + np.abs(t, out=o) + assert_array_equal(o, t) + + def test_logical_and_or_xor(self): + t, f, o, nm, im = self._create_bool_arrays() + assert_array_equal(t | t, t) + assert_array_equal(f | f, f) + assert_array_equal(t | f, t) + assert_array_equal(f | t, t) + np.logical_or(t, t, out=o) + assert_array_equal(o, t) + assert_array_equal(t & t, t) + assert_array_equal(f & f, f) + assert_array_equal(t & f, f) + assert_array_equal(f & t, f) + np.logical_and(t, t, out=o) + assert_array_equal(o, t) + assert_array_equal(t ^ t, f) + assert_array_equal(f ^ f, f) + assert_array_equal(t ^ f, t) + assert_array_equal(f ^ t, t) + np.logical_xor(t, t, out=o) + assert_array_equal(o, f) + + assert_array_equal(nm & t, nm) + assert_array_equal(im & f, False) + assert_array_equal(nm & True, nm) + assert_array_equal(im & False, f) + assert_array_equal(nm | t, t) + assert_array_equal(im | f, im) + assert_array_equal(nm | True, t) + assert_array_equal(im | False, im) + assert_array_equal(nm ^ t, im) + assert_array_equal(im ^ f, im) + assert_array_equal(nm ^ True, im) + assert_array_equal(im ^ False, im) + + +class TestBoolCmp: + def _create_data(self, dtype, size): + # generate data using given dtype and num for size of array + a = np.ones(size, dtype=dtype) + e = np.ones(a.size, dtype=bool) + # generate values for all permutation of 256bit simd vectors + s = 0 + r = int(size / 32) + for i in range(int(size / 8)): + a[s:s + r] = [i & 2**x for x in range(r)] + e[s:s + r] = [(i & 2**x) != 0 for x in range(r)] + s += r + n = a.copy() + n[e] = np.nan + + inf = a.copy() + inf[::3][e[::3]] = np.inf + inf[1::3][e[1::3]] = -np.inf + inf[2::3][e[2::3]] = np.nan + enonan = e.copy() + enonan[2::3] = False + + sign = a.copy() + sign[e] *= -1. + sign[1::6][e[1::6]] = -np.inf + # On RISC-V, many operations that produce NaNs, such as converting + # a -NaN from f64 to f32, return a canonical NaN. The canonical + # NaNs are always positive. See section 11.3 NaN Generation and + # Propagation of the RISC-V Unprivileged ISA for more details. + # We disable the float32 sign test on riscv64 for -np.nan as the sign + # of the NaN will be lost when it's converted to a float32. + if not (dtype == np.float32 and platform.machine() == 'riscv64'): + sign[3::6][e[3::6]] = -np.nan + sign[4::6][e[4::6]] = -0. + return a, e, n, inf, enonan, sign + + def test_float(self): + # offset for alignment test + f, ef, nf, inff, efnonan, signf = self._create_data(np.float32, 256) + for i in range(4): + assert_array_equal(f[i:] > 0, ef[i:]) + assert_array_equal(f[i:] - 1 >= 0, ef[i:]) + assert_array_equal(f[i:] == 0, ~ef[i:]) + assert_array_equal(-f[i:] < 0, ef[i:]) + assert_array_equal(-f[i:] + 1 <= 0, ef[i:]) + r = f[i:] != 0 + assert_array_equal(r, ef[i:]) + r2 = f[i:] != np.zeros_like(f[i:]) + r3 = 0 != f[i:] + assert_array_equal(r, r2) + assert_array_equal(r, r3) + # check bool == 0x1 + assert_array_equal(r.view(np.int8), r.astype(np.int8)) + assert_array_equal(r2.view(np.int8), r2.astype(np.int8)) + assert_array_equal(r3.view(np.int8), r3.astype(np.int8)) + + # isnan on amd64 takes the same code path + assert_array_equal(np.isnan(nf[i:]), ef[i:]) + assert_array_equal(np.isfinite(nf[i:]), ~ef[i:]) + assert_array_equal(np.isfinite(inff[i:]), ~ef[i:]) + assert_array_equal(np.isinf(inff[i:]), efnonan[i:]) + assert_array_equal(np.signbit(signf[i:]), ef[i:]) + + def test_double(self): + # offset for alignment test + d, ed, nd, infd, ednonan, signd = self._create_data(np.float64, 128) + for i in range(2): + assert_array_equal(d[i:] > 0, ed[i:]) + assert_array_equal(d[i:] - 1 >= 0, ed[i:]) + assert_array_equal(d[i:] == 0, ~ed[i:]) + assert_array_equal(-d[i:] < 0, ed[i:]) + assert_array_equal(-d[i:] + 1 <= 0, ed[i:]) + r = d[i:] != 0 + assert_array_equal(r, ed[i:]) + r2 = d[i:] != np.zeros_like(d[i:]) + r3 = 0 != d[i:] + assert_array_equal(r, r2) + assert_array_equal(r, r3) + # check bool == 0x1 + assert_array_equal(r.view(np.int8), r.astype(np.int8)) + assert_array_equal(r2.view(np.int8), r2.astype(np.int8)) + assert_array_equal(r3.view(np.int8), r3.astype(np.int8)) + + # isnan on amd64 takes the same code path + assert_array_equal(np.isnan(nd[i:]), ed[i:]) + assert_array_equal(np.isfinite(nd[i:]), ~ed[i:]) + assert_array_equal(np.isfinite(infd[i:]), ~ed[i:]) + assert_array_equal(np.isinf(infd[i:]), ednonan[i:]) + assert_array_equal(np.signbit(signd[i:]), ed[i:]) + + +class TestSeterr: + def test_default(self): + err = np.geterr() + assert_equal(err, + {'divide': 'warn', + 'invalid': 'warn', + 'over': 'warn', + 'under': 'ignore'} + ) + + def test_set(self): + with np.errstate(): + err = np.seterr() + old = np.seterr(divide='print') + assert_(err == old) + new = np.seterr() + assert_(new['divide'] == 'print') + np.seterr(over='raise') + assert_(np.geterr()['over'] == 'raise') + assert_(new['divide'] == 'print') + np.seterr(**old) + assert_(np.geterr() == old) + + @pytest.mark.skipif(IS_WASM, reason="no wasm fp exception support") + @pytest.mark.skipif(platform.machine() == "armv5tel", reason="See gh-413.") + def test_divide_err(self): + with np.errstate(divide='raise'): + with assert_raises(FloatingPointError): + np.array([1.]) / np.array([0.]) + + np.seterr(divide='ignore') + np.array([1.]) / np.array([0.]) + + +class TestFloatExceptions: + def assert_raises_fpe(self, fpeerr, flop, x, y): + ftype = type(x) + try: + flop(x, y) + assert_(False, + f"Type {ftype} did not raise fpe error '{fpeerr}'.") + except FloatingPointError as exc: + assert_(str(exc).find(fpeerr) >= 0, + f"Type {ftype} raised wrong fpe error '{exc}'.") + + def assert_op_raises_fpe(self, fpeerr, flop, sc1, sc2): + # Check that fpe exception is raised. + # + # Given a floating operation `flop` and two scalar values, check that + # the operation raises the floating point exception specified by + # `fpeerr`. Tests all variants with 0-d array scalars as well. + + self.assert_raises_fpe(fpeerr, flop, sc1, sc2) + self.assert_raises_fpe(fpeerr, flop, sc1[()], sc2) + self.assert_raises_fpe(fpeerr, flop, sc1, sc2[()]) + self.assert_raises_fpe(fpeerr, flop, sc1[()], sc2[()]) + + # Test for all real and complex float types + @pytest.mark.skipif(IS_WASM, reason="no wasm fp exception support") + @pytest.mark.parametrize("typecode", np.typecodes["AllFloat"]) + def test_floating_exceptions(self, typecode): + if 'bsd' in sys.platform and typecode in 'gG': + pytest.skip(reason="Fallback impl for (c)longdouble may not raise " + "FPE errors as expected on BSD OSes, " + "see gh-24876, gh-23379") + + # Test basic arithmetic function errors + with np.errstate(all='raise'): + ftype = obj2sctype(typecode) + if np.dtype(ftype).kind == 'f': + # Get some extreme values for the type + fi = np.finfo(ftype) + ft_tiny = fi.tiny + ft_max = fi.max + ft_eps = fi.eps + underflow = 'underflow' + divbyzero = 'divide by zero' + else: + # 'c', complex, corresponding real dtype + rtype = type(ftype(0).real) + fi = np.finfo(rtype) + ft_tiny = ftype(fi.tiny) + ft_max = ftype(fi.max) + ft_eps = ftype(fi.eps) + # The complex types raise different exceptions + underflow = '' + divbyzero = '' + overflow = 'overflow' + invalid = 'invalid' + + # The value of tiny for double double is NaN, so we need to + # pass the assert + if not np.isnan(ft_tiny): + self.assert_raises_fpe(underflow, + lambda a, b: a / b, ft_tiny, ft_max) + self.assert_raises_fpe(underflow, + lambda a, b: a * b, ft_tiny, ft_tiny) + self.assert_raises_fpe(overflow, + lambda a, b: a * b, ft_max, ftype(2)) + self.assert_raises_fpe(overflow, + lambda a, b: a / b, ft_max, ftype(0.5)) + self.assert_raises_fpe(overflow, + lambda a, b: a + b, ft_max, ft_max * ft_eps) + self.assert_raises_fpe(overflow, + lambda a, b: a - b, -ft_max, ft_max * ft_eps) + # On AIX, pow() with double does not raise the overflow exception, + # it returns inf. Long double is the same as double. + if sys.platform != 'aix' or typecode not in 'dDgG': + self.assert_raises_fpe(overflow, + np.power, ftype(2), ftype(2**fi.nexp)) + self.assert_raises_fpe(divbyzero, + lambda a, b: a / b, ftype(1), ftype(0)) + self.assert_raises_fpe( + invalid, lambda a, b: a / b, ftype(np.inf), ftype(np.inf) + ) + self.assert_raises_fpe(invalid, + lambda a, b: a / b, ftype(0), ftype(0)) + self.assert_raises_fpe( + invalid, lambda a, b: a - b, ftype(np.inf), ftype(np.inf) + ) + self.assert_raises_fpe( + invalid, lambda a, b: a + b, ftype(np.inf), ftype(-np.inf) + ) + self.assert_raises_fpe(invalid, + lambda a, b: a * b, ftype(0), ftype(np.inf)) + + @pytest.mark.skipif(IS_WASM, reason="no wasm fp exception support") + def test_warnings(self): + # test warning code path + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter("always") + with np.errstate(all="warn"): + np.divide(1, 0.) + assert_equal(len(w), 1) + assert_("divide by zero" in str(w[0].message)) + np.array(1e300) * np.array(1e300) + assert_equal(len(w), 2) + assert_("overflow" in str(w[-1].message)) + np.array(np.inf) - np.array(np.inf) + assert_equal(len(w), 3) + assert_("invalid value" in str(w[-1].message)) + np.array(1e-300) * np.array(1e-300) + assert_equal(len(w), 4) + assert_("underflow" in str(w[-1].message)) + + +class TestTypes: + def check_promotion_cases(self, promote_func): + # tests that the scalars get coerced correctly. + b = np.bool(0) + i8, i16, i32, i64 = np.int8(0), np.int16(0), np.int32(0), np.int64(0) + u8, u16, u32, u64 = np.uint8(0), np.uint16(0), np.uint32(0), np.uint64(0) + f32, f64, fld = np.float32(0), np.float64(0), np.longdouble(0) + c64, c128, cld = np.complex64(0), np.complex128(0), np.clongdouble(0) + + # coercion within the same kind + assert_equal(promote_func(i8, i16), np.dtype(np.int16)) + assert_equal(promote_func(i32, i8), np.dtype(np.int32)) + assert_equal(promote_func(i16, i64), np.dtype(np.int64)) + assert_equal(promote_func(u8, u32), np.dtype(np.uint32)) + assert_equal(promote_func(f32, f64), np.dtype(np.float64)) + assert_equal(promote_func(fld, f32), np.dtype(np.longdouble)) + assert_equal(promote_func(f64, fld), np.dtype(np.longdouble)) + assert_equal(promote_func(c128, c64), np.dtype(np.complex128)) + assert_equal(promote_func(cld, c128), np.dtype(np.clongdouble)) + assert_equal(promote_func(c64, fld), np.dtype(np.clongdouble)) + + # coercion between kinds + assert_equal(promote_func(b, i32), np.dtype(np.int32)) + assert_equal(promote_func(b, u8), np.dtype(np.uint8)) + assert_equal(promote_func(i8, u8), np.dtype(np.int16)) + assert_equal(promote_func(u8, i32), np.dtype(np.int32)) + assert_equal(promote_func(i64, u32), np.dtype(np.int64)) + assert_equal(promote_func(u64, i32), np.dtype(np.float64)) + assert_equal(promote_func(i32, f32), np.dtype(np.float64)) + assert_equal(promote_func(i64, f32), np.dtype(np.float64)) + assert_equal(promote_func(f32, i16), np.dtype(np.float32)) + assert_equal(promote_func(f32, u32), np.dtype(np.float64)) + assert_equal(promote_func(f32, c64), np.dtype(np.complex64)) + assert_equal(promote_func(c128, f32), np.dtype(np.complex128)) + assert_equal(promote_func(cld, f64), np.dtype(np.clongdouble)) + + # coercion between scalars and 1-D arrays + assert_equal(promote_func(np.array([b]), i8), np.dtype(np.int8)) + assert_equal(promote_func(np.array([b]), u8), np.dtype(np.uint8)) + assert_equal(promote_func(np.array([b]), i32), np.dtype(np.int32)) + assert_equal(promote_func(np.array([b]), u32), np.dtype(np.uint32)) + assert_equal(promote_func(np.array([i8]), i64), np.dtype(np.int64)) + # unsigned and signed unfortunately tend to promote to float64: + assert_equal(promote_func(u64, np.array([i32])), np.dtype(np.float64)) + assert_equal(promote_func(i64, np.array([u32])), np.dtype(np.int64)) + assert_equal(promote_func(np.array([u16]), i32), np.dtype(np.int32)) + assert_equal(promote_func(np.int32(-1), np.array([u64])), + np.dtype(np.float64)) + assert_equal(promote_func(f64, np.array([f32])), np.dtype(np.float64)) + assert_equal(promote_func(fld, np.array([f32])), + np.dtype(np.longdouble)) + assert_equal(promote_func(np.array([f64]), fld), + np.dtype(np.longdouble)) + assert_equal(promote_func(fld, np.array([c64])), + np.dtype(np.clongdouble)) + assert_equal(promote_func(c64, np.array([f64])), + np.dtype(np.complex128)) + assert_equal(promote_func(np.complex64(3j), np.array([f64])), + np.dtype(np.complex128)) + assert_equal(promote_func(np.array([f32]), c128), + np.dtype(np.complex128)) + + # coercion between scalars and 1-D arrays, where + # the scalar has greater kind than the array + assert_equal(promote_func(np.array([b]), f64), np.dtype(np.float64)) + assert_equal(promote_func(np.array([b]), i64), np.dtype(np.int64)) + assert_equal(promote_func(np.array([b]), u64), np.dtype(np.uint64)) + assert_equal(promote_func(np.array([i8]), f64), np.dtype(np.float64)) + assert_equal(promote_func(np.array([u16]), f64), np.dtype(np.float64)) + + def test_coercion(self): + def res_type(a, b): + return np.add(a, b).dtype + + self.check_promotion_cases(res_type) + + # Use-case: float/complex scalar * bool/int8 array + # shouldn't narrow the float/complex type + for a in [np.array([True, False]), np.array([-3, 12], dtype=np.int8)]: + b = 1.234 * a + assert_equal(b.dtype, np.dtype('f8'), f"array type {a.dtype}") + b = np.longdouble(1.234) * a + assert_equal(b.dtype, np.dtype(np.longdouble), + f"array type {a.dtype}") + b = np.float64(1.234) * a + assert_equal(b.dtype, np.dtype('f8'), f"array type {a.dtype}") + b = np.float32(1.234) * a + assert_equal(b.dtype, np.dtype('f4'), f"array type {a.dtype}") + b = np.float16(1.234) * a + assert_equal(b.dtype, np.dtype('f2'), f"array type {a.dtype}") + + b = 1.234j * a + assert_equal(b.dtype, np.dtype('c16'), f"array type {a.dtype}") + b = np.clongdouble(1.234j) * a + assert_equal(b.dtype, np.dtype(np.clongdouble), + f"array type {a.dtype}") + b = np.complex128(1.234j) * a + assert_equal(b.dtype, np.dtype('c16'), f"array type {a.dtype}") + b = np.complex64(1.234j) * a + assert_equal(b.dtype, np.dtype('c8'), f"array type {a.dtype}") + + # The following use-case is problematic, and to resolve its + # tricky side-effects requires more changes. + # + # Use-case: (1-t)*a, where 't' is a boolean array and 'a' is + # a float32, shouldn't promote to float64 + # + # a = np.array([1.0, 1.5], dtype=np.float32) + # t = np.array([True, False]) + # b = t*a + # assert_equal(b, [1.0, 0.0]) + # assert_equal(b.dtype, np.dtype('f4')) + # b = (1-t)*a + # assert_equal(b, [0.0, 1.5]) + # assert_equal(b.dtype, np.dtype('f4')) + # + # Probably ~t (bitwise negation) is more proper to use here, + # but this is arguably less intuitive to understand at a glance, and + # would fail if 't' is actually an integer array instead of boolean: + # + # b = (~t)*a + # assert_equal(b, [0.0, 1.5]) + # assert_equal(b.dtype, np.dtype('f4')) + + def test_result_type(self): + self.check_promotion_cases(np.result_type) + assert_(np.result_type(None) == np.dtype(None)) + + def test_promote_types_endian(self): + # promote_types should always return native-endian types + assert_equal(np.promote_types('i8', '>i8'), np.dtype('i8')) + + assert_equal(np.promote_types('>i8', '>U16'), np.dtype('U21')) + assert_equal(np.promote_types('U16', '>i8'), np.dtype('U21')) + assert_equal(np.promote_types('S5', '>U8'), np.dtype('U8')) + assert_equal(np.promote_types('U8', '>S5'), np.dtype('U8')) + assert_equal(np.promote_types('U8', '>U5'), np.dtype('U8')) + + assert_equal(np.promote_types('M8', '>M8'), np.dtype('M8')) + assert_equal(np.promote_types('m8', '>m8'), np.dtype('m8')) + + def test_can_cast_and_promote_usertypes(self): + # The rational type defines safe casting for signed integers, + # boolean. Rational itself *does* cast safely to double. + # (rational does not actually cast to all signed integers, e.g. + # int64 can be both long and longlong and it registers only the first) + valid_types = ["int8", "int16", "int32", "int64", "bool"] + invalid_types = "BHILQP" + "FDG" + "mM" + "f" + "V" + + rational_dt = np.dtype(rational) + for numpy_dtype in valid_types: + numpy_dtype = np.dtype(numpy_dtype) + assert np.can_cast(numpy_dtype, rational_dt) + assert np.promote_types(numpy_dtype, rational_dt) is rational_dt + + for numpy_dtype in invalid_types: + numpy_dtype = np.dtype(numpy_dtype) + assert not np.can_cast(numpy_dtype, rational_dt) + with pytest.raises(TypeError): + np.promote_types(numpy_dtype, rational_dt) + + double_dt = np.dtype("double") + assert np.can_cast(rational_dt, double_dt) + assert np.promote_types(double_dt, rational_dt) is double_dt + + @pytest.mark.parametrize("swap", ["", "swap"]) + @pytest.mark.parametrize("string_dtype", ["U", "S"]) + def test_promote_types_strings(self, swap, string_dtype): + if swap == "swap": + promote_types = lambda a, b: np.promote_types(b, a) + else: + promote_types = np.promote_types + + S = string_dtype + + # Promote numeric with unsized string: + assert_equal(promote_types('bool', S), np.dtype(S + '5')) + assert_equal(promote_types('b', S), np.dtype(S + '4')) + assert_equal(promote_types('u1', S), np.dtype(S + '3')) + assert_equal(promote_types('u2', S), np.dtype(S + '5')) + assert_equal(promote_types('u4', S), np.dtype(S + '10')) + assert_equal(promote_types('u8', S), np.dtype(S + '20')) + assert_equal(promote_types('i1', S), np.dtype(S + '4')) + assert_equal(promote_types('i2', S), np.dtype(S + '6')) + assert_equal(promote_types('i4', S), np.dtype(S + '11')) + assert_equal(promote_types('i8', S), np.dtype(S + '21')) + # Promote numeric with sized string: + assert_equal(promote_types('bool', S + '1'), np.dtype(S + '5')) + assert_equal(promote_types('bool', S + '30'), np.dtype(S + '30')) + assert_equal(promote_types('b', S + '1'), np.dtype(S + '4')) + assert_equal(promote_types('b', S + '30'), np.dtype(S + '30')) + assert_equal(promote_types('u1', S + '1'), np.dtype(S + '3')) + assert_equal(promote_types('u1', S + '30'), np.dtype(S + '30')) + assert_equal(promote_types('u2', S + '1'), np.dtype(S + '5')) + assert_equal(promote_types('u2', S + '30'), np.dtype(S + '30')) + assert_equal(promote_types('u4', S + '1'), np.dtype(S + '10')) + assert_equal(promote_types('u4', S + '30'), np.dtype(S + '30')) + assert_equal(promote_types('u8', S + '1'), np.dtype(S + '20')) + assert_equal(promote_types('u8', S + '30'), np.dtype(S + '30')) + # Promote with object: + assert_equal(promote_types('O', S + '30'), np.dtype('O')) + + @pytest.mark.parametrize(["dtype1", "dtype2"], + [[np.dtype("V6"), np.dtype("V10")], # mismatch shape + # Mismatching names: + [np.dtype([("name1", "i8")]), np.dtype([("name2", "i8")])], + ]) + def test_invalid_void_promotion(self, dtype1, dtype2): + with pytest.raises(TypeError): + np.promote_types(dtype1, dtype2) + + @pytest.mark.parametrize(["dtype1", "dtype2"], + [[np.dtype("V10"), np.dtype("V10")], + [np.dtype([("name1", "i8")]), + np.dtype([("name1", np.dtype("i8").newbyteorder())])], + [np.dtype("i8,i8"), np.dtype("i8,>i8")], + [np.dtype("i8,i8"), np.dtype("i4,i4")], + ]) + def test_valid_void_promotion(self, dtype1, dtype2): + assert np.promote_types(dtype1, dtype2) == dtype1 + + @pytest.mark.parametrize("dtype", + list(np.typecodes["All"]) + + ["i,i", "10i", "S3", "S100", "U3", "U100", rational]) + def test_promote_identical_types_metadata(self, dtype): + # The same type passed in twice to promote types always + # preserves metadata + metadata = {1: 1} + dtype = np.dtype(dtype, metadata=metadata) + + res = np.promote_types(dtype, dtype) + assert res.metadata == dtype.metadata + + # byte-swapping preserves and makes the dtype native: + dtype = dtype.newbyteorder() + if dtype.isnative: + # The type does not have byte swapping + return + + res = np.promote_types(dtype, dtype) + + # Metadata is (currently) generally lost on byte-swapping (except for + # unicode. + if dtype.char != "U": + assert res.metadata is None + else: + assert res.metadata == metadata + assert res.isnative + + @pytest.mark.slow + @pytest.mark.filterwarnings('ignore:Promotion of numbers:FutureWarning') + @pytest.mark.parametrize(["dtype1", "dtype2"], + itertools.product( + list(np.typecodes["All"]) + + ["i,i", "S3", "S100", "U3", "U100", rational], + repeat=2)) + def test_promote_types_metadata(self, dtype1, dtype2): + """Metadata handling in promotion does not appear formalized + right now in NumPy. This test should thus be considered to + document behaviour, rather than test the correct definition of it. + + This test is very ugly, it was useful for rewriting part of the + promotion, but probably should eventually be replaced/deleted + (i.e. when metadata handling in promotion is better defined). + """ + metadata1 = {1: 1} + metadata2 = {2: 2} + dtype1 = np.dtype(dtype1, metadata=metadata1) + dtype2 = np.dtype(dtype2, metadata=metadata2) + + try: + res = np.promote_types(dtype1, dtype2) + except TypeError: + # Promotion failed, this test only checks metadata + return + + if res.char not in "USV" or res.names is not None or res.shape != (): + # All except string dtypes (and unstructured void) lose metadata + # on promotion (unless both dtypes are identical). + # At some point structured ones did not, but were restrictive. + assert res.metadata is None + elif res == dtype1: + # If one result is the result, it is usually returned unchanged: + assert res is dtype1 + elif res == dtype2: + # dtype1 may have been cast to the same type/kind as dtype2. + # If the resulting dtype is identical we currently pick the cast + # version of dtype1, which lost the metadata: + if np.promote_types(dtype1, dtype2.kind) == dtype2: + res.metadata is None + else: + res.metadata == metadata2 + else: + assert res.metadata is None + + # Try again for byteswapped version + dtype1 = dtype1.newbyteorder() + assert dtype1.metadata == metadata1 + res_bs = np.promote_types(dtype1, dtype2) + assert res_bs == res + assert res_bs.metadata == res.metadata + + def test_can_cast(self): + assert_(np.can_cast(np.int32, np.int64)) + assert_(np.can_cast(np.float64, complex)) + assert_(not np.can_cast(complex, float)) + + assert_(np.can_cast('i8', 'f8')) + assert_(not np.can_cast('i8', 'f4')) + assert_(np.can_cast('i4', 'S11')) + + assert_(np.can_cast('i8', 'i8', 'no')) + assert_(not np.can_cast('i8', 'no')) + + assert_(np.can_cast('i8', 'equiv')) + assert_(not np.can_cast('i8', 'equiv')) + + assert_(np.can_cast('i8', 'safe')) + assert_(not np.can_cast('i4', 'safe')) + + assert_(np.can_cast('i4', 'same_kind')) + assert_(not np.can_cast('u4', 'same_kind')) + + assert_(np.can_cast('u4', 'unsafe')) + + assert_(np.can_cast('bool', 'S5')) + assert_(not np.can_cast('bool', 'S4')) + + assert_(np.can_cast('b', 'S4')) + assert_(not np.can_cast('b', 'S3')) + + assert_(np.can_cast('u1', 'S3')) + assert_(not np.can_cast('u1', 'S2')) + assert_(np.can_cast('u2', 'S5')) + assert_(not np.can_cast('u2', 'S4')) + assert_(np.can_cast('u4', 'S10')) + assert_(not np.can_cast('u4', 'S9')) + assert_(np.can_cast('u8', 'S20')) + assert_(not np.can_cast('u8', 'S19')) + + assert_(np.can_cast('i1', 'S4')) + assert_(not np.can_cast('i1', 'S3')) + assert_(np.can_cast('i2', 'S6')) + assert_(not np.can_cast('i2', 'S5')) + assert_(np.can_cast('i4', 'S11')) + assert_(not np.can_cast('i4', 'S10')) + assert_(np.can_cast('i8', 'S21')) + assert_(not np.can_cast('i8', 'S20')) + + assert_(np.can_cast('bool', 'S5')) + assert_(not np.can_cast('bool', 'S4')) + + assert_(np.can_cast('b', 'U4')) + assert_(not np.can_cast('b', 'U3')) + + assert_(np.can_cast('u1', 'U3')) + assert_(not np.can_cast('u1', 'U2')) + assert_(np.can_cast('u2', 'U5')) + assert_(not np.can_cast('u2', 'U4')) + assert_(np.can_cast('u4', 'U10')) + assert_(not np.can_cast('u4', 'U9')) + assert_(np.can_cast('u8', 'U20')) + assert_(not np.can_cast('u8', 'U19')) + + assert_(np.can_cast('i1', 'U4')) + assert_(not np.can_cast('i1', 'U3')) + assert_(np.can_cast('i2', 'U6')) + assert_(not np.can_cast('i2', 'U5')) + assert_(np.can_cast('i4', 'U11')) + assert_(not np.can_cast('i4', 'U10')) + assert_(np.can_cast('i8', 'U21')) + assert_(not np.can_cast('i8', 'U20')) + + assert_raises(TypeError, np.can_cast, 'i4', None) + assert_raises(TypeError, np.can_cast, None, 'i4') + + # Also test keyword arguments + assert_(np.can_cast(from_=np.int32, to=np.int64)) + + def test_can_cast_simple_to_structured(self): + # Non-structured can only be cast to structured in 'unsafe' mode. + assert_(not np.can_cast('i4', 'i4,i4')) + assert_(not np.can_cast('i4', 'i4,i2')) + assert_(np.can_cast('i4', 'i4,i4', casting='unsafe')) + assert_(np.can_cast('i4', 'i4,i2', casting='unsafe')) + # Even if there is just a single field which is OK. + assert_(not np.can_cast('i2', [('f1', 'i4')])) + assert_(not np.can_cast('i2', [('f1', 'i4')], casting='same_kind')) + assert_(np.can_cast('i2', [('f1', 'i4')], casting='unsafe')) + # It should be the same for recursive structured or subarrays. + assert_(not np.can_cast('i2', [('f1', 'i4,i4')])) + assert_(np.can_cast('i2', [('f1', 'i4,i4')], casting='unsafe')) + assert_(not np.can_cast('i2', [('f1', '(2,3)i4')])) + assert_(np.can_cast('i2', [('f1', '(2,3)i4')], casting='unsafe')) + + def test_can_cast_structured_to_simple(self): + # Need unsafe casting for structured to simple. + assert_(not np.can_cast([('f1', 'i4')], 'i4')) + assert_(np.can_cast([('f1', 'i4')], 'i4', casting='unsafe')) + assert_(np.can_cast([('f1', 'i4')], 'i2', casting='unsafe')) + # Since it is unclear what is being cast, multiple fields to + # single should not work even for unsafe casting. + assert_(not np.can_cast('i4,i4', 'i4', casting='unsafe')) + # But a single field inside a single field is OK. + assert_(not np.can_cast([('f1', [('x', 'i4')])], 'i4')) + assert_(np.can_cast([('f1', [('x', 'i4')])], 'i4', casting='unsafe')) + # And a subarray is fine too - it will just take the first element + # (arguably not very consistently; might also take the first field). + assert_(not np.can_cast([('f0', '(3,)i4')], 'i4')) + assert_(np.can_cast([('f0', '(3,)i4')], 'i4', casting='unsafe')) + # But a structured subarray with multiple fields should fail. + assert_(not np.can_cast([('f0', ('i4,i4'), (2,))], 'i4', + casting='unsafe')) + + def test_can_cast_values(self): + # With NumPy 2 and NEP 50, can_cast errors on Python scalars. We could + # define this as (usually safe) at some point, and already do so + # in `copyto` and ufuncs (but there an error is raised if the integer + # is out of bounds and a warning for out-of-bound floats). + # Raises even for unsafe, previously checked within range (for floats + # that was approximately whether it would overflow to inf). + with pytest.raises(TypeError): + np.can_cast(4, "int8", casting="unsafe") + + with pytest.raises(TypeError): + np.can_cast(4.0, "float64", casting="unsafe") + + with pytest.raises(TypeError): + np.can_cast(4j, "complex128", casting="unsafe") + + @pytest.mark.parametrize("dtype", + list("?bhilqBHILQefdgFDG") + [rational]) + def test_can_cast_scalars(self, dtype): + # Basic test to ensure that scalars are supported in can-cast + # (does not check behavior exhaustively). + dtype = np.dtype(dtype) + scalar = dtype.type(0) + + assert np.can_cast(scalar, "int64") == np.can_cast(dtype, "int64") + assert np.can_cast(scalar, "float32", casting="unsafe") + + +# Custom exception class to test exception propagation in fromiter +class NIterError(Exception): + pass + + +class TestFromiter: + def makegen(self): + return (x**2 for x in range(24)) + + def test_types(self): + ai32 = np.fromiter(self.makegen(), np.int32) + ai64 = np.fromiter(self.makegen(), np.int64) + af = np.fromiter(self.makegen(), float) + assert_(ai32.dtype == np.dtype(np.int32)) + assert_(ai64.dtype == np.dtype(np.int64)) + assert_(af.dtype == np.dtype(float)) + + def test_lengths(self): + expected = np.array(list(self.makegen())) + a = np.fromiter(self.makegen(), int) + a20 = np.fromiter(self.makegen(), int, 20) + assert_(len(a) == len(expected)) + assert_(len(a20) == 20) + assert_raises(ValueError, np.fromiter, + self.makegen(), int, len(expected) + 10) + + def test_values(self): + expected = np.array(list(self.makegen())) + a = np.fromiter(self.makegen(), int) + a20 = np.fromiter(self.makegen(), int, 20) + assert_(np.all(a == expected, axis=0)) + assert_(np.all(a20 == expected[:20], axis=0)) + + def load_data(self, n, eindex): + # Utility method for the issue 2592 tests. + # Raise an exception at the desired index in the iterator. + for e in range(n): + if e == eindex: + raise NIterError(f'error at index {eindex}') + yield e + + @pytest.mark.parametrize("dtype", [int, object]) + @pytest.mark.parametrize(["count", "error_index"], [(10, 5), (10, 9)]) + def test_2592(self, count, error_index, dtype): + # Test iteration exceptions are correctly raised. The data/generator + # has `count` elements but errors at `error_index` + iterable = self.load_data(count, error_index) + with pytest.raises(NIterError): + np.fromiter(iterable, dtype=dtype, count=count) + + @pytest.mark.parametrize("dtype", ["S", "S0", "V0", "U0"]) + def test_empty_not_structured(self, dtype): + # Note, "S0" could be allowed at some point, so long "S" (without + # any length) is rejected. + with pytest.raises(ValueError, match="Must specify length"): + np.fromiter([], dtype=dtype) + + @pytest.mark.parametrize(["dtype", "data"], + [("d", [1, 2, 3, 4, 5, 6, 7, 8, 9]), + ("O", [1, 2, 3, 4, 5, 6, 7, 8, 9]), + ("i,O", [(1, 2), (5, 4), (2, 3), (9, 8), (6, 7)]), + # subarray dtypes (important because their dimensions end up + # in the result arrays dimension: + ("2i", [(1, 2), (5, 4), (2, 3), (9, 8), (6, 7)]), + (np.dtype(("O", (2, 3))), + [((1, 2, 3), (3, 4, 5)), ((3, 2, 1), (5, 4, 3))])]) + @pytest.mark.parametrize("length_hint", [0, 1]) + def test_growth_and_complicated_dtypes(self, dtype, data, length_hint): + dtype = np.dtype(dtype) + + data = data * 100 # make sure we realloc a bit + + class MyIter: + # Class/example from gh-15789 + def __length_hint__(self): + # only required to be an estimate, this is legal + return length_hint # 0 or 1 + + def __iter__(self): + return iter(data) + + res = np.fromiter(MyIter(), dtype=dtype) + expected = np.array(data, dtype=dtype) + + assert_array_equal(res, expected) + + def test_empty_result(self): + class MyIter: + def __length_hint__(self): + return 10 + + def __iter__(self): + return iter([]) # actual iterator is empty. + + res = np.fromiter(MyIter(), dtype="d") + assert res.shape == (0,) + assert res.dtype == "d" + + def test_too_few_items(self): + msg = "iterator too short: Expected 10 but iterator had only 3 items." + with pytest.raises(ValueError, match=msg): + np.fromiter([1, 2, 3], count=10, dtype=int) + + def test_failed_itemsetting(self): + with pytest.raises(TypeError): + np.fromiter([1, None, 3], dtype=int) + + # The following manages to hit somewhat trickier code paths: + iterable = ((2, 3, 4) for i in range(5)) + with pytest.raises(ValueError): + np.fromiter(iterable, dtype=np.dtype((int, 2))) + + +class TestNonzero: + def test_nonzero_trivial(self): + assert_equal(np.count_nonzero(np.array([])), 0) + assert_equal(np.count_nonzero(np.array([], dtype='?')), 0) + assert_equal(np.nonzero(np.array([])), ([],)) + + assert_equal(np.count_nonzero(np.array([0])), 0) + assert_equal(np.count_nonzero(np.array([0], dtype='?')), 0) + assert_equal(np.nonzero(np.array([0])), ([],)) + + assert_equal(np.count_nonzero(np.array([1])), 1) + assert_equal(np.count_nonzero(np.array([1], dtype='?')), 1) + assert_equal(np.nonzero(np.array([1])), ([0],)) + + def test_nonzero_zerodim(self): + err_msg = "Calling nonzero on 0d arrays is not allowed" + with assert_raises_regex(ValueError, err_msg): + np.nonzero(np.array(0)) + with assert_raises_regex(ValueError, err_msg): + np.array(1).nonzero() + + def test_nonzero_onedim(self): + x = np.array([1, 0, 2, -1, 0, 0, 8]) + assert_equal(np.count_nonzero(x), 4) + assert_equal(np.count_nonzero(x), 4) + assert_equal(np.nonzero(x), ([0, 2, 3, 6],)) + + # x = np.array([(1, 2), (0, 0), (1, 1), (-1, 3), (0, 7)], + # dtype=[('a', 'i4'), ('b', 'i2')]) + x = np.array( + [(1, 2, -5, -3), (0, 0, 2, 7), (1, 1, 0, 1), (-1, 3, 1, 0), (0, 7, 0, 4)], + dtype=[('a', 'i4'), ('b', 'i2'), ('c', 'i1'), ('d', 'i8')] + ) + assert_equal(np.count_nonzero(x['a']), 3) + assert_equal(np.count_nonzero(x['b']), 4) + assert_equal(np.count_nonzero(x['c']), 3) + assert_equal(np.count_nonzero(x['d']), 4) + assert_equal(np.nonzero(x['a']), ([0, 2, 3],)) + assert_equal(np.nonzero(x['b']), ([0, 2, 3, 4],)) + + def test_nonzero_twodim(self): + x = np.array([[0, 1, 0], [2, 0, 3]]) + assert_equal(np.count_nonzero(x.astype('i1')), 3) + assert_equal(np.count_nonzero(x.astype('i2')), 3) + assert_equal(np.count_nonzero(x.astype('i4')), 3) + assert_equal(np.count_nonzero(x.astype('i8')), 3) + assert_equal(np.nonzero(x), ([0, 1, 1], [1, 0, 2])) + + x = np.eye(3) + assert_equal(np.count_nonzero(x.astype('i1')), 3) + assert_equal(np.count_nonzero(x.astype('i2')), 3) + assert_equal(np.count_nonzero(x.astype('i4')), 3) + assert_equal(np.count_nonzero(x.astype('i8')), 3) + assert_equal(np.nonzero(x), ([0, 1, 2], [0, 1, 2])) + + x = np.array([[(0, 1), (0, 0), (1, 11)], + [(1, 1), (1, 0), (0, 0)], + [(0, 0), (1, 5), (0, 1)]], dtype=[('a', 'f4'), ('b', 'u1')]) + assert_equal(np.count_nonzero(x['a']), 4) + assert_equal(np.count_nonzero(x['b']), 5) + assert_equal(np.nonzero(x['a']), ([0, 1, 1, 2], [2, 0, 1, 1])) + assert_equal(np.nonzero(x['b']), ([0, 0, 1, 2, 2], [0, 2, 0, 1, 2])) + + assert_(not x['a'].T.flags.aligned) + assert_equal(np.count_nonzero(x['a'].T), 4) + assert_equal(np.count_nonzero(x['b'].T), 5) + assert_equal(np.nonzero(x['a'].T), ([0, 1, 1, 2], [1, 1, 2, 0])) + assert_equal(np.nonzero(x['b'].T), ([0, 0, 1, 2, 2], [0, 1, 2, 0, 2])) + + def test_sparse(self): + # test special sparse condition boolean code path + for i in range(20): + c = np.zeros(200, dtype=bool) + c[i::20] = True + assert_equal(np.nonzero(c)[0], np.arange(i, 200 + i, 20)) + + c = np.zeros(400, dtype=bool) + c[10 + i:20 + i] = True + c[20 + i * 2] = True + assert_equal(np.nonzero(c)[0], + np.concatenate((np.arange(10 + i, 20 + i), [20 + i * 2]))) + + @pytest.mark.parametrize('dtype', [np.float32, np.float64]) + def test_nonzero_float_dtypes(self, dtype): + rng = np.random.default_rng(seed=10) + x = ((2**33) * rng.normal(size=100)).astype(dtype) + x[rng.choice(50, size=100)] = 0 + idxs = np.nonzero(x)[0] + assert_equal(np.array_equal(np.where(x != 0)[0], idxs), True) + + @pytest.mark.parametrize('dtype', [bool, np.int8, np.int16, np.int32, np.int64, + np.uint8, np.uint16, np.uint32, np.uint64]) + def test_nonzero_integer_dtypes(self, dtype): + rng = np.random.default_rng(seed=10) + x = rng.integers(0, 255, size=100).astype(dtype) + x[rng.choice(50, size=100)] = 0 + idxs = np.nonzero(x)[0] + assert_equal(np.array_equal(np.where(x != 0)[0], idxs), True) + + def test_return_type(self): + class C(np.ndarray): + pass + + for view in (C, np.ndarray): + for nd in range(1, 4): + shape = tuple(range(2, 2 + nd)) + x = np.arange(np.prod(shape)).reshape(shape).view(view) + for nzx in (np.nonzero(x), x.nonzero()): + for nzx_i in nzx: + assert_(type(nzx_i) is np.ndarray) + assert_(nzx_i.flags.writeable) + + def test_count_nonzero_axis(self): + # Basic check of functionality + m = np.array([[0, 1, 7, 0, 0], [3, 0, 0, 2, 19]]) + + expected = np.array([1, 1, 1, 1, 1]) + assert_equal(np.count_nonzero(m, axis=0), expected) + + expected = np.array([2, 3]) + assert_equal(np.count_nonzero(m, axis=1), expected) + + assert_raises(ValueError, np.count_nonzero, m, axis=(1, 1)) + assert_raises(TypeError, np.count_nonzero, m, axis='foo') + assert_raises(AxisError, np.count_nonzero, m, axis=3) + assert_raises(TypeError, np.count_nonzero, + m, axis=np.array([[1], [2]])) + + def test_count_nonzero_axis_all_dtypes(self): + # More thorough test that the axis argument is respected + # for all dtypes and responds correctly when presented with + # either integer or tuple arguments for axis + msg = "Mismatch for dtype: %s" + + def assert_equal_w_dt(a, b, err_msg): + assert_equal(a.dtype, b.dtype, err_msg=err_msg) + assert_equal(a, b, err_msg=err_msg) + + for dt in np.typecodes['All']: + err_msg = msg % (np.dtype(dt).name,) + + if dt != 'V': + if dt != 'M': + m = np.zeros((3, 3), dtype=dt) + n = np.ones(1, dtype=dt) + + m[0, 0] = n[0] + m[1, 0] = n[0] + + else: # np.zeros doesn't work for np.datetime64 + m = np.array(['1970-01-01'] * 9) + m = m.reshape((3, 3)) + + m[0, 0] = '1970-01-12' + m[1, 0] = '1970-01-12' + m = m.astype(dt) + + expected = np.array([2, 0, 0], dtype=np.intp) + assert_equal_w_dt(np.count_nonzero(m, axis=0), + expected, err_msg=err_msg) + + expected = np.array([1, 1, 0], dtype=np.intp) + assert_equal_w_dt(np.count_nonzero(m, axis=1), + expected, err_msg=err_msg) + + expected = np.array(2) + assert_equal(np.count_nonzero(m, axis=(0, 1)), + expected, err_msg=err_msg) + assert_equal(np.count_nonzero(m, axis=None), + expected, err_msg=err_msg) + assert_equal(np.count_nonzero(m), + expected, err_msg=err_msg) + + if dt == 'V': + # There are no 'nonzero' objects for np.void, so the testing + # setup is slightly different for this dtype + m = np.array([np.void(1)] * 6).reshape((2, 3)) + + expected = np.array([0, 0, 0], dtype=np.intp) + assert_equal_w_dt(np.count_nonzero(m, axis=0), + expected, err_msg=err_msg) + + expected = np.array([0, 0], dtype=np.intp) + assert_equal_w_dt(np.count_nonzero(m, axis=1), + expected, err_msg=err_msg) + + expected = np.array(0) + assert_equal(np.count_nonzero(m, axis=(0, 1)), + expected, err_msg=err_msg) + assert_equal(np.count_nonzero(m, axis=None), + expected, err_msg=err_msg) + assert_equal(np.count_nonzero(m), + expected, err_msg=err_msg) + + def test_count_nonzero_axis_consistent(self): + # Check that the axis behaviour for valid axes in + # non-special cases is consistent (and therefore + # correct) by checking it against an integer array + # that is then casted to the generic object dtype + from itertools import combinations, permutations + + axis = (0, 1, 2, 3) + size = (5, 5, 5, 5) + msg = "Mismatch for axis: %s" + + rng = np.random.RandomState(1234) + m = rng.randint(-100, 100, size=size) + n = m.astype(object) + + for length in range(len(axis)): + for combo in combinations(axis, length): + for perm in permutations(combo): + assert_equal( + np.count_nonzero(m, axis=perm), + np.count_nonzero(n, axis=perm), + err_msg=msg % (perm,)) + + def test_countnonzero_axis_empty(self): + a = np.array([[0, 0, 1], [1, 0, 1]]) + assert_equal(np.count_nonzero(a, axis=()), a.astype(bool)) + + def test_countnonzero_keepdims(self): + a = np.array([[0, 0, 1, 0], + [0, 3, 5, 0], + [7, 9, 2, 0]]) + assert_equal(np.count_nonzero(a, axis=0, keepdims=True), + [[1, 2, 3, 0]]) + assert_equal(np.count_nonzero(a, axis=1, keepdims=True), + [[1], [2], [3]]) + assert_equal(np.count_nonzero(a, keepdims=True), + [[6]]) + + def test_array_method(self): + # Tests that the array method + # call to nonzero works + m = np.array([[1, 0, 0], [4, 0, 6]]) + tgt = [[0, 1, 1], [0, 0, 2]] + + assert_equal(m.nonzero(), tgt) + + def test_nonzero_invalid_object(self): + # gh-9295 + a = np.array([np.array([1, 2]), 3], dtype=object) + assert_raises(ValueError, np.nonzero, a) + + class BoolErrors: + def __bool__(self): + raise ValueError("Not allowed") + + assert_raises(ValueError, np.nonzero, np.array([BoolErrors()])) + + def test_nonzero_sideeffect_safety(self): + # gh-13631 + class FalseThenTrue: + _val = False + + def __bool__(self): + try: + return self._val + finally: + self._val = True + + class TrueThenFalse: + _val = True + + def __bool__(self): + try: + return self._val + finally: + self._val = False + + # result grows on the second pass + a = np.array([True, FalseThenTrue()]) + assert_raises(RuntimeError, np.nonzero, a) + + a = np.array([[True], [FalseThenTrue()]]) + assert_raises(RuntimeError, np.nonzero, a) + + # result shrinks on the second pass + a = np.array([False, TrueThenFalse()]) + assert_raises(RuntimeError, np.nonzero, a) + + a = np.array([[False], [TrueThenFalse()]]) + assert_raises(RuntimeError, np.nonzero, a) + + def test_nonzero_sideffects_structured_void(self): + # Checks that structured void does not mutate alignment flag of + # original array. + arr = np.zeros(5, dtype="i1,i8,i8") # `ones` may short-circuit + assert arr.flags.aligned # structs are considered "aligned" + assert not arr["f2"].flags.aligned + # make sure that nonzero/count_nonzero do not flip the flag: + np.nonzero(arr) + assert arr.flags.aligned + np.count_nonzero(arr) + assert arr.flags.aligned + + def test_nonzero_exception_safe(self): + # gh-13930 + + class ThrowsAfter: + def __init__(self, iters): + self.iters_left = iters + + def __bool__(self): + if self.iters_left == 0: + raise ValueError("called `iters` times") + + self.iters_left -= 1 + return True + + """ + Test that a ValueError is raised instead of a SystemError + + If the __bool__ function is called after the error state is set, + Python (cpython) will raise a SystemError. + """ + + # assert that an exception in first pass is handled correctly + a = np.array([ThrowsAfter(5)] * 10) + assert_raises(ValueError, np.nonzero, a) + + # raise exception in second pass for 1-dimensional loop + a = np.array([ThrowsAfter(15)] * 10) + assert_raises(ValueError, np.nonzero, a) + + # raise exception in second pass for n-dimensional loop + a = np.array([[ThrowsAfter(15)]] * 10) + assert_raises(ValueError, np.nonzero, a) + + def test_nonzero_byteorder(self): + values = [0., -0., 1, float('nan'), 0, 1, + np.float16(0), np.float16(12.3)] + expected_values = [0, 0, 1, 1, 0, 1, 0, 1] + + for value, expected in zip(values, expected_values): + A = np.array([value]) + A_byteswapped = (A.view(A.dtype.newbyteorder()).byteswap()).copy() + + assert np.count_nonzero(A) == expected + assert np.count_nonzero(A_byteswapped) == expected + + def test_count_nonzero_non_aligned_array(self): + # gh-27523 + b = np.zeros(64 + 1, dtype=np.int8)[1:] + b = b.view(int) + b[:] = np.arange(b.size) + b[::2] = 0 + assert b.flags.aligned is False + assert np.count_nonzero(b) == b.size / 2 + + b = np.zeros(64 + 1, dtype=np.float16)[1:] + b = b.view(float) + b[:] = np.arange(b.size) + b[::2] = 0 + assert b.flags.aligned is False + assert np.count_nonzero(b) == b.size / 2 + + +class TestIndex: + def test_boolean(self): + a = rand(3, 5, 8) + V = rand(5, 8) + g1 = randint(0, 5, size=15) + g2 = randint(0, 8, size=15) + V[g1, g2] = -V[g1, g2] + assert_( + (np.array([a[0][V > 0], a[1][V > 0], a[2][V > 0]]) == a[:, V > 0]).all() + ) + + def test_boolean_edgecase(self): + a = np.array([], dtype='int32') + b = np.array([], dtype='bool') + c = a[b] + assert_equal(c, []) + assert_equal(c.dtype, np.dtype('int32')) + + +class TestBinaryRepr: + def test_zero(self): + assert_equal(np.binary_repr(0), '0') + + def test_positive(self): + assert_equal(np.binary_repr(10), '1010') + assert_equal(np.binary_repr(12522), + '11000011101010') + assert_equal(np.binary_repr(10736848), + '101000111101010011010000') + + def test_negative(self): + assert_equal(np.binary_repr(-1), '-1') + assert_equal(np.binary_repr(-10), '-1010') + assert_equal(np.binary_repr(-12522), + '-11000011101010') + assert_equal(np.binary_repr(-10736848), + '-101000111101010011010000') + + def test_sufficient_width(self): + assert_equal(np.binary_repr(0, width=5), '00000') + assert_equal(np.binary_repr(10, width=7), '0001010') + assert_equal(np.binary_repr(-5, width=7), '1111011') + + def test_neg_width_boundaries(self): + # see gh-8670 + + # Ensure that the example in the issue does not + # break before proceeding to a more thorough test. + assert_equal(np.binary_repr(-128, width=8), '10000000') + + for width in range(1, 11): + num = -2**(width - 1) + exp = '1' + (width - 1) * '0' + assert_equal(np.binary_repr(num, width=width), exp) + + def test_large_neg_int64(self): + # See gh-14289. + assert_equal(np.binary_repr(np.int64(-2**62), width=64), + '11' + '0' * 62) + + +class TestBaseRepr: + def test_base3(self): + assert_equal(np.base_repr(3**5, 3), '100000') + + def test_positive(self): + assert_equal(np.base_repr(12, 10), '12') + assert_equal(np.base_repr(12, 10, 4), '000012') + assert_equal(np.base_repr(12, 4), '30') + assert_equal(np.base_repr(3731624803700888, 36), '10QR0ROFCEW') + + def test_negative(self): + assert_equal(np.base_repr(-12, 10), '-12') + assert_equal(np.base_repr(-12, 10, 4), '-000012') + assert_equal(np.base_repr(-12, 4), '-30') + + def test_base_range(self): + with assert_raises(ValueError): + np.base_repr(1, 1) + with assert_raises(ValueError): + np.base_repr(1, 37) + + def test_minimal_signed_int(self): + assert_equal(np.base_repr(np.int8(-128)), '-10000000') + + +def _test_array_equal_parametrizations(): + """ + we pre-create arrays as we sometime want to pass the same instance + and sometime not. Passing the same instances may not mean the array are + equal, especially when containing None + """ + # those are 0-d arrays, it used to be a special case + # where (e0 == e0).all() would raise + e0 = np.array(0, dtype="int") + e1 = np.array(1, dtype="float") + # x,y, nan_equal, expected_result + yield (e0, e0.copy(), None, True) + yield (e0, e0.copy(), False, True) + yield (e0, e0.copy(), True, True) + + # + yield (e1, e1.copy(), None, True) + yield (e1, e1.copy(), False, True) + yield (e1, e1.copy(), True, True) + + # Non-nanable - those cannot hold nans + a12 = np.array([1, 2]) + a12b = a12.copy() + a123 = np.array([1, 2, 3]) + a13 = np.array([1, 3]) + a34 = np.array([3, 4]) + + aS1 = np.array(["a"], dtype="S1") + aS1b = aS1.copy() + aS1u4 = np.array([("a", 1)], dtype="S1,u4") + aS1u4b = aS1u4.copy() + + yield (a12, a12b, None, True) + yield (a12, a12, None, True) + yield (a12, a123, None, False) + yield (a12, a34, None, False) + yield (a12, a13, None, False) + yield (aS1, aS1b, None, True) + yield (aS1, aS1, None, True) + + # Non-float dtype - equal_nan should have no effect, + yield (a123, a123, None, True) + yield (a123, a123, False, True) + yield (a123, a123, True, True) + yield (a123, a123.copy(), None, True) + yield (a123, a123.copy(), False, True) + yield (a123, a123.copy(), True, True) + yield (a123.astype("float"), a123.astype("float"), None, True) + yield (a123.astype("float"), a123.astype("float"), False, True) + yield (a123.astype("float"), a123.astype("float"), True, True) + + # these can hold None + b1 = np.array([1, 2, np.nan]) + b2 = np.array([1, np.nan, 2]) + b3 = np.array([1, 2, np.inf]) + b4 = np.array(np.nan) + + # instances are the same + yield (b1, b1, None, False) + yield (b1, b1, False, False) + yield (b1, b1, True, True) + + # equal but not same instance + yield (b1, b1.copy(), None, False) + yield (b1, b1.copy(), False, False) + yield (b1, b1.copy(), True, True) + + # same once stripped of Nan + yield (b1, b2, None, False) + yield (b1, b2, False, False) + yield (b1, b2, True, False) + + # nan's not conflated with inf's + yield (b1, b3, None, False) + yield (b1, b3, False, False) + yield (b1, b3, True, False) + + # all Nan + yield (b4, b4, None, False) + yield (b4, b4, False, False) + yield (b4, b4, True, True) + yield (b4, b4.copy(), None, False) + yield (b4, b4.copy(), False, False) + yield (b4, b4.copy(), True, True) + + t1 = b1.astype("timedelta64") + t2 = b2.astype("timedelta64") + + # Timedeltas are particular + yield (t1, t1, None, False) + yield (t1, t1, False, False) + yield (t1, t1, True, True) + + yield (t1, t1.copy(), None, False) + yield (t1, t1.copy(), False, False) + yield (t1, t1.copy(), True, True) + + yield (t1, t2, None, False) + yield (t1, t2, False, False) + yield (t1, t2, True, False) + + # Multi-dimensional array + md1 = np.array([[0, 1], [np.nan, 1]]) + + yield (md1, md1, None, False) + yield (md1, md1, False, False) + yield (md1, md1, True, True) + yield (md1, md1.copy(), None, False) + yield (md1, md1.copy(), False, False) + yield (md1, md1.copy(), True, True) + # both complexes are nan+nan.j but the same instance + cplx1, cplx2 = [np.array([np.nan + np.nan * 1j])] * 2 + + # only real or img are nan. + cplx3, cplx4 = np.complex64(1, np.nan), np.complex64(np.nan, 1) + + # Complex values + yield (cplx1, cplx2, None, False) + yield (cplx1, cplx2, False, False) + yield (cplx1, cplx2, True, True) + + # Complex values, 1+nan, nan+1j + yield (cplx3, cplx4, None, False) + yield (cplx3, cplx4, False, False) + yield (cplx3, cplx4, True, True) + + +class TestArrayComparisons: + @pytest.mark.parametrize( + "bx,by,equal_nan,expected", _test_array_equal_parametrizations() + ) + def test_array_equal_equal_nan(self, bx, by, equal_nan, expected): + """ + This test array_equal for a few combinations: + + - are the two inputs the same object or not (same object may not + be equal if contains NaNs) + - Whether we should consider or not, NaNs, being equal. + + """ + if equal_nan is None: + res = np.array_equal(bx, by) + else: + res = np.array_equal(bx, by, equal_nan=equal_nan) + assert_(res is expected) + assert_(type(res) is bool) + + def test_array_equal_different_scalar_types(self): + # https://github.com/numpy/numpy/issues/27271 + a = np.array("foo") + b = np.array(1) + assert not np.array_equal(a, b) + assert not np.array_equiv(a, b) + + def test_none_compares_elementwise(self): + a = np.array([None, 1, None], dtype=object) + assert_equal(a == None, [True, False, True]) # noqa: E711 + assert_equal(a != None, [False, True, False]) # noqa: E711 + + a = np.ones(3) + assert_equal(a == None, [False, False, False]) # noqa: E711 + assert_equal(a != None, [True, True, True]) # noqa: E711 + + def test_array_equiv(self): + res = np.array_equiv(np.array([1, 2]), np.array([1, 2])) + assert_(res) + assert_(type(res) is bool) + res = np.array_equiv(np.array([1, 2]), np.array([1, 2, 3])) + assert_(not res) + assert_(type(res) is bool) + res = np.array_equiv(np.array([1, 2]), np.array([3, 4])) + assert_(not res) + assert_(type(res) is bool) + res = np.array_equiv(np.array([1, 2]), np.array([1, 3])) + assert_(not res) + assert_(type(res) is bool) + + res = np.array_equiv(np.array([1, 1]), np.array([1])) + assert_(res) + assert_(type(res) is bool) + res = np.array_equiv(np.array([1, 1]), np.array([[1], [1]])) + assert_(res) + assert_(type(res) is bool) + res = np.array_equiv(np.array([1, 2]), np.array([2])) + assert_(not res) + assert_(type(res) is bool) + res = np.array_equiv(np.array([1, 2]), np.array([[1], [2]])) + assert_(not res) + assert_(type(res) is bool) + res = np.array_equiv( + np.array([1, 2]), + np.array([[1, 2, 3], [4, 5, 6], [7, 8, 9]]), + ) + assert_(not res) + assert_(type(res) is bool) + + @pytest.mark.parametrize("dtype", ["V0", "V3", "V10"]) + def test_compare_unstructured_voids(self, dtype): + zeros = np.zeros(3, dtype=dtype) + + assert_array_equal(zeros, zeros) + assert not (zeros != zeros).any() + + if dtype == "V0": + # Can't test != of actually different data + return + + nonzeros = np.array([b"1", b"2", b"3"], dtype=dtype) + + assert not (zeros == nonzeros).any() + assert (zeros != nonzeros).all() + + +def assert_array_strict_equal(x, y): + assert_array_equal(x, y) + # Check flags, 32 bit arches typically don't provide 16 byte alignment + if ((x.dtype.alignment <= 8 or + np.intp().dtype.itemsize != 4) and + sys.platform != 'win32'): + assert_(x.flags == y.flags) + else: + assert_(x.flags.owndata == y.flags.owndata) + assert_(x.flags.writeable == y.flags.writeable) + assert_(x.flags.c_contiguous == y.flags.c_contiguous) + assert_(x.flags.f_contiguous == y.flags.f_contiguous) + assert_(x.flags.writebackifcopy == y.flags.writebackifcopy) + # check endianness + assert_(x.dtype.isnative == y.dtype.isnative) + + +class TestClip: + nr = 5 + nc = 3 + + def fastclip(self, a, m, M, out=None, **kwargs): + return a.clip(m, M, out=out, **kwargs) + + def clip(self, a, m, M, out=None): + # use a.choose to verify fastclip result + selector = np.less(a, m) + 2 * np.greater(a, M) + return selector.choose((a, m, M), out=out) + + # Handy functions + def _generate_data(self, n, m): + return randn(n, m) + + def _generate_data_complex(self, n, m): + return randn(n, m) + 1.j * rand(n, m) + + def _generate_flt_data(self, n, m): + return (randn(n, m)).astype(np.float32) + + def _neg_byteorder(self, a): + a = np.asarray(a) + if sys.byteorder == 'little': + a = a.astype(a.dtype.newbyteorder('>')) + else: + a = a.astype(a.dtype.newbyteorder('<')) + return a + + def _generate_non_native_data(self, n, m): + data = randn(n, m) + data = self._neg_byteorder(data) + assert_(not data.dtype.isnative) + return data + + def _generate_int_data(self, n, m): + return (10 * rand(n, m)).astype(np.int64) + + def _generate_int32_data(self, n, m): + return (10 * rand(n, m)).astype(np.int32) + + # Now the real test cases + + @pytest.mark.parametrize("dtype", '?bhilqpBHILQPefdgFDGO') + def test_ones_pathological(self, dtype): + # for preservation of behavior described in + # gh-12519; amin > amax behavior may still change + # in the future + arr = np.ones(10, dtype=dtype) + expected = np.zeros(10, dtype=dtype) + actual = np.clip(arr, 1, 0) + if dtype == 'O': + assert actual.tolist() == expected.tolist() + else: + assert_equal(actual, expected) + + def test_simple_double(self): + # Test native double input with scalar min/max. + a = self._generate_data(self.nr, self.nc) + m = 0.1 + M = 0.6 + ac = self.fastclip(a, m, M) + act = self.clip(a, m, M) + assert_array_strict_equal(ac, act) + + def test_simple_int(self): + # Test native int input with scalar min/max. + a = self._generate_int_data(self.nr, self.nc) + a = a.astype(int) + m = -2 + M = 4 + ac = self.fastclip(a, m, M) + act = self.clip(a, m, M) + assert_array_strict_equal(ac, act) + + def test_array_double(self): + # Test native double input with array min/max. + a = self._generate_data(self.nr, self.nc) + m = np.zeros(a.shape) + M = m + 0.5 + ac = self.fastclip(a, m, M) + act = self.clip(a, m, M) + assert_array_strict_equal(ac, act) + + def test_simple_nonnative(self): + # Test non native double input with scalar min/max. + # Test native double input with non native double scalar min/max. + a = self._generate_non_native_data(self.nr, self.nc) + m = -0.5 + M = 0.6 + ac = self.fastclip(a, m, M) + act = self.clip(a, m, M) + assert_array_equal(ac, act) + + # Test native double input with non native double scalar min/max. + a = self._generate_data(self.nr, self.nc) + m = -0.5 + M = self._neg_byteorder(0.6) + assert_(not M.dtype.isnative) + ac = self.fastclip(a, m, M) + act = self.clip(a, m, M) + assert_array_equal(ac, act) + + def test_simple_complex(self): + # Test native complex input with native double scalar min/max. + # Test native input with complex double scalar min/max. + a = 3 * self._generate_data_complex(self.nr, self.nc) + m = -0.5 + M = 1. + ac = self.fastclip(a, m, M) + act = self.clip(a, m, M) + assert_array_strict_equal(ac, act) + + # Test native input with complex double scalar min/max. + a = 3 * self._generate_data(self.nr, self.nc) + m = -0.5 + 1.j + M = 1. + 2.j + ac = self.fastclip(a, m, M) + act = self.clip(a, m, M) + assert_array_strict_equal(ac, act) + + def test_clip_complex(self): + # Address Issue gh-5354 for clipping complex arrays + # Test native complex input without explicit min/max + # ie, either min=None or max=None + a = np.ones(10, dtype=complex) + m = a.min() + M = a.max() + am = self.fastclip(a, m, None) + aM = self.fastclip(a, None, M) + assert_array_strict_equal(am, a) + assert_array_strict_equal(aM, a) + + def test_clip_non_contig(self): + # Test clip for non contiguous native input and native scalar min/max. + a = self._generate_data(self.nr * 2, self.nc * 3) + a = a[::2, ::3] + assert_(not a.flags['F_CONTIGUOUS']) + assert_(not a.flags['C_CONTIGUOUS']) + ac = self.fastclip(a, -1.6, 1.7) + act = self.clip(a, -1.6, 1.7) + assert_array_strict_equal(ac, act) + + def test_simple_out(self): + # Test native double input with scalar min/max. + a = self._generate_data(self.nr, self.nc) + m = -0.5 + M = 0.6 + ac = np.zeros(a.shape) + act = np.zeros(a.shape) + self.fastclip(a, m, M, ac) + self.clip(a, m, M, act) + assert_array_strict_equal(ac, act) + + @pytest.mark.parametrize("casting", [None, "unsafe"]) + def test_simple_int32_inout(self, casting): + # Test native int32 input with double min/max and int32 out. + a = self._generate_int32_data(self.nr, self.nc) + m = np.float64(0) + M = np.float64(2) + ac = np.zeros(a.shape, dtype=np.int32) + act = ac.copy() + if casting is None: + with pytest.raises(TypeError): + self.fastclip(a, m, M, ac, casting=casting) + else: + # explicitly passing "unsafe" will silence warning + self.fastclip(a, m, M, ac, casting=casting) + self.clip(a, m, M, act) + assert_array_strict_equal(ac, act) + + def test_simple_int64_out(self): + # Test native int32 input with int32 scalar min/max and int64 out. + a = self._generate_int32_data(self.nr, self.nc) + m = np.int32(-1) + M = np.int32(1) + ac = np.zeros(a.shape, dtype=np.int64) + act = ac.copy() + self.fastclip(a, m, M, ac) + self.clip(a, m, M, act) + assert_array_strict_equal(ac, act) + + def test_simple_int64_inout(self): + # Test native int32 input with double array min/max and int32 out. + a = self._generate_int32_data(self.nr, self.nc) + m = np.zeros(a.shape, np.float64) + M = np.float64(1) + ac = np.zeros(a.shape, dtype=np.int32) + act = ac.copy() + self.fastclip(a, m, M, out=ac, casting="unsafe") + self.clip(a, m, M, act) + assert_array_strict_equal(ac, act) + + def test_simple_int32_out(self): + # Test native double input with scalar min/max and int out. + a = self._generate_data(self.nr, self.nc) + m = -1.0 + M = 2.0 + ac = np.zeros(a.shape, dtype=np.int32) + act = ac.copy() + self.fastclip(a, m, M, out=ac, casting="unsafe") + self.clip(a, m, M, act) + assert_array_strict_equal(ac, act) + + def test_simple_inplace_01(self): + # Test native double input with array min/max in-place. + a = self._generate_data(self.nr, self.nc) + ac = a.copy() + m = np.zeros(a.shape) + M = 1.0 + self.fastclip(a, m, M, a) + self.clip(a, m, M, ac) + assert_array_strict_equal(a, ac) + + def test_simple_inplace_02(self): + # Test native double input with scalar min/max in-place. + a = self._generate_data(self.nr, self.nc) + ac = a.copy() + m = -0.5 + M = 0.6 + self.fastclip(a, m, M, a) + self.clip(ac, m, M, ac) + assert_array_strict_equal(a, ac) + + def test_noncontig_inplace(self): + # Test non contiguous double input with double scalar min/max in-place. + a = self._generate_data(self.nr * 2, self.nc * 3) + a = a[::2, ::3] + assert_(not a.flags['F_CONTIGUOUS']) + assert_(not a.flags['C_CONTIGUOUS']) + ac = a.copy() + m = -0.5 + M = 0.6 + self.fastclip(a, m, M, a) + self.clip(ac, m, M, ac) + assert_array_equal(a, ac) + + def test_type_cast_01(self): + # Test native double input with scalar min/max. + a = self._generate_data(self.nr, self.nc) + m = -0.5 + M = 0.6 + ac = self.fastclip(a, m, M) + act = self.clip(a, m, M) + assert_array_strict_equal(ac, act) + + def test_type_cast_02(self): + # Test native int32 input with int32 scalar min/max. + a = self._generate_int_data(self.nr, self.nc) + a = a.astype(np.int32) + m = -2 + M = 4 + ac = self.fastclip(a, m, M) + act = self.clip(a, m, M) + assert_array_strict_equal(ac, act) + + def test_type_cast_03(self): + # Test native int32 input with float64 scalar min/max. + a = self._generate_int32_data(self.nr, self.nc) + m = -2 + M = 4 + ac = self.fastclip(a, np.float64(m), np.float64(M)) + act = self.clip(a, np.float64(m), np.float64(M)) + assert_array_strict_equal(ac, act) + + def test_type_cast_04(self): + # Test native int32 input with float32 scalar min/max. + a = self._generate_int32_data(self.nr, self.nc) + m = np.float32(-2) + M = np.float32(4) + act = self.fastclip(a, m, M) + ac = self.clip(a, m, M) + assert_array_strict_equal(ac, act) + + def test_type_cast_05(self): + # Test native int32 with double arrays min/max. + a = self._generate_int_data(self.nr, self.nc) + m = -0.5 + M = 1. + ac = self.fastclip(a, m * np.zeros(a.shape), M) + act = self.clip(a, m * np.zeros(a.shape), M) + assert_array_strict_equal(ac, act) + + def test_type_cast_06(self): + # Test native with NON native scalar min/max. + a = self._generate_data(self.nr, self.nc) + m = 0.5 + m_s = self._neg_byteorder(m) + M = 1. + act = self.clip(a, m_s, M) + ac = self.fastclip(a, m_s, M) + assert_array_strict_equal(ac, act) + + def test_type_cast_07(self): + # Test NON native with native array min/max. + a = self._generate_data(self.nr, self.nc) + m = -0.5 * np.ones(a.shape) + M = 1. + a_s = self._neg_byteorder(a) + assert_(not a_s.dtype.isnative) + act = a_s.clip(m, M) + ac = self.fastclip(a_s, m, M) + assert_array_strict_equal(ac, act) + + def test_type_cast_08(self): + # Test NON native with native scalar min/max. + a = self._generate_data(self.nr, self.nc) + m = -0.5 + M = 1. + a_s = self._neg_byteorder(a) + assert_(not a_s.dtype.isnative) + ac = self.fastclip(a_s, m, M) + act = a_s.clip(m, M) + assert_array_strict_equal(ac, act) + + def test_type_cast_09(self): + # Test native with NON native array min/max. + a = self._generate_data(self.nr, self.nc) + m = -0.5 * np.ones(a.shape) + M = 1. + m_s = self._neg_byteorder(m) + assert_(not m_s.dtype.isnative) + ac = self.fastclip(a, m_s, M) + act = self.clip(a, m_s, M) + assert_array_strict_equal(ac, act) + + def test_type_cast_10(self): + # Test native int32 with float min/max and float out for output argument. + a = self._generate_int_data(self.nr, self.nc) + b = np.zeros(a.shape, dtype=np.float32) + m = np.float32(-0.5) + M = np.float32(1) + act = self.clip(a, m, M, out=b) + ac = self.fastclip(a, m, M, out=b) + assert_array_strict_equal(ac, act) + + def test_type_cast_11(self): + # Test non native with native scalar, min/max, out non native + a = self._generate_non_native_data(self.nr, self.nc) + b = a.copy() + b = b.astype(b.dtype.newbyteorder('>')) + bt = b.copy() + m = -0.5 + M = 1. + self.fastclip(a, m, M, out=b) + self.clip(a, m, M, out=bt) + assert_array_strict_equal(b, bt) + + def test_type_cast_12(self): + # Test native int32 input and min/max and float out + a = self._generate_int_data(self.nr, self.nc) + b = np.zeros(a.shape, dtype=np.float32) + m = np.int32(0) + M = np.int32(1) + act = self.clip(a, m, M, out=b) + ac = self.fastclip(a, m, M, out=b) + assert_array_strict_equal(ac, act) + + def test_clip_with_out_simple(self): + # Test native double input with scalar min/max + a = self._generate_data(self.nr, self.nc) + m = -0.5 + M = 0.6 + ac = np.zeros(a.shape) + act = np.zeros(a.shape) + self.fastclip(a, m, M, ac) + self.clip(a, m, M, act) + assert_array_strict_equal(ac, act) + + def test_clip_with_out_simple2(self): + # Test native int32 input with double min/max and int32 out + a = self._generate_int32_data(self.nr, self.nc) + m = np.float64(0) + M = np.float64(2) + ac = np.zeros(a.shape, dtype=np.int32) + act = ac.copy() + self.fastclip(a, m, M, out=ac, casting="unsafe") + self.clip(a, m, M, act) + assert_array_strict_equal(ac, act) + + def test_clip_with_out_simple_int32(self): + # Test native int32 input with int32 scalar min/max and int64 out + a = self._generate_int32_data(self.nr, self.nc) + m = np.int32(-1) + M = np.int32(1) + ac = np.zeros(a.shape, dtype=np.int64) + act = ac.copy() + self.fastclip(a, m, M, ac) + self.clip(a, m, M, act) + assert_array_strict_equal(ac, act) + + def test_clip_with_out_array_int32(self): + # Test native int32 input with double array min/max and int32 out + a = self._generate_int32_data(self.nr, self.nc) + m = np.zeros(a.shape, np.float64) + M = np.float64(1) + ac = np.zeros(a.shape, dtype=np.int32) + act = ac.copy() + self.fastclip(a, m, M, out=ac, casting="unsafe") + self.clip(a, m, M, act) + assert_array_strict_equal(ac, act) + + def test_clip_with_out_array_outint32(self): + # Test native double input with scalar min/max and int out + a = self._generate_data(self.nr, self.nc) + m = -1.0 + M = 2.0 + ac = np.zeros(a.shape, dtype=np.int32) + act = ac.copy() + self.fastclip(a, m, M, out=ac, casting="unsafe") + self.clip(a, m, M, act) + assert_array_strict_equal(ac, act) + + def test_clip_with_out_transposed(self): + # Test that the out argument works when transposed + a = np.arange(16).reshape(4, 4) + out = np.empty_like(a).T + a.clip(4, 10, out=out) + expected = self.clip(a, 4, 10) + assert_array_equal(out, expected) + + def test_clip_with_out_memory_overlap(self): + # Test that the out argument works when it has memory overlap + a = np.arange(16).reshape(4, 4) + ac = a.copy() + a[:-1].clip(4, 10, out=a[1:]) + expected = self.clip(ac[:-1], 4, 10) + assert_array_equal(a[1:], expected) + + def test_clip_inplace_array(self): + # Test native double input with array min/max + a = self._generate_data(self.nr, self.nc) + ac = a.copy() + m = np.zeros(a.shape) + M = 1.0 + self.fastclip(a, m, M, a) + self.clip(a, m, M, ac) + assert_array_strict_equal(a, ac) + + def test_clip_inplace_simple(self): + # Test native double input with scalar min/max + a = self._generate_data(self.nr, self.nc) + ac = a.copy() + m = -0.5 + M = 0.6 + self.fastclip(a, m, M, a) + self.clip(a, m, M, ac) + assert_array_strict_equal(a, ac) + + def test_clip_func_takes_out(self): + # Ensure that the clip() function takes an out=argument. + a = self._generate_data(self.nr, self.nc) + ac = a.copy() + m = -0.5 + M = 0.6 + a2 = np.clip(a, m, M, out=a) + self.clip(a, m, M, ac) + assert_array_strict_equal(a2, ac) + assert_(a2 is a) + + def test_clip_nan(self): + d = np.arange(7.) + assert_equal(d.clip(min=np.nan), np.nan) + assert_equal(d.clip(max=np.nan), np.nan) + assert_equal(d.clip(min=np.nan, max=np.nan), np.nan) + assert_equal(d.clip(min=-2, max=np.nan), np.nan) + assert_equal(d.clip(min=np.nan, max=10), np.nan) + + def test_object_clip(self): + a = np.arange(10, dtype=object) + actual = np.clip(a, 1, 5) + expected = np.array([1, 1, 2, 3, 4, 5, 5, 5, 5, 5]) + assert actual.tolist() == expected.tolist() + + def test_clip_all_none(self): + arr = np.arange(10, dtype=object) + assert_equal(np.clip(arr, None, None), arr) + assert_equal(np.clip(arr), arr) + + def test_clip_invalid_casting(self): + a = np.arange(10, dtype=object) + with assert_raises_regex(ValueError, + 'casting must be one of'): + self.fastclip(a, 1, 8, casting="garbage") + + @pytest.mark.parametrize("amin, amax", [ + # two scalars + (1, 0), + # mix scalar and array + (1, np.zeros(10)), + # two arrays + (np.ones(10), np.zeros(10)), + ]) + def test_clip_value_min_max_flip(self, amin, amax): + a = np.arange(10, dtype=np.int64) + # requirement from ufunc_docstrings.py + expected = np.minimum(np.maximum(a, amin), amax) + actual = np.clip(a, amin, amax) + assert_equal(actual, expected) + + @pytest.mark.parametrize("arr, amin, amax, exp", [ + # for a bug in npy_ObjectClip, based on a + # case produced by hypothesis + (np.zeros(10, dtype=object), + 0, + -2**64 + 1, + np.full(10, -2**64 + 1, dtype=object)), + # for bugs in NPY_TIMEDELTA_MAX, based on a case + # produced by hypothesis + (np.zeros(10, dtype='m8') - 1, + 0, + 0, + np.zeros(10, dtype='m8')), + ]) + def test_clip_problem_cases(self, arr, amin, amax, exp): + actual = np.clip(arr, amin, amax) + assert_equal(actual, exp) + + @pytest.mark.parametrize("arr, amin, amax", [ + # problematic scalar nan case from hypothesis + (np.zeros(10, dtype=np.int64), + np.array(np.nan), + np.zeros(10, dtype=np.int32)), + ]) + def test_clip_scalar_nan_propagation(self, arr, amin, amax): + # enforcement of scalar nan propagation for comparisons + # called through clip() + expected = np.minimum(np.maximum(arr, amin), amax) + actual = np.clip(arr, amin, amax) + assert_equal(actual, expected) + + @pytest.mark.parametrize("arr, amin, amax", [ + (np.array([1] * 10, dtype='m8'), + np.timedelta64('NaT'), + np.zeros(10, dtype=np.int32)), + ]) + def test_NaT_propagation(self, arr, amin, amax): + expected = np.minimum(np.maximum(arr, amin), amax) + actual = np.clip(arr, amin, amax) + assert_equal(actual, expected) + + @given( + data=st.data(), + arr=hynp.arrays( + dtype=hynp.integer_dtypes() | hynp.floating_dtypes(), + shape=hynp.array_shapes() + ) + ) + def test_clip_property(self, data, arr): + """A property-based test using Hypothesis. + + This aims for maximum generality: it could in principle generate *any* + valid inputs to np.clip, and in practice generates much more varied + inputs than human testers come up with. + + Because many of the inputs have tricky dependencies - compatible dtypes + and mutually-broadcastable shapes - we use `st.data()` strategy draw + values *inside* the test function, from strategies we construct based + on previous values. An alternative would be to define a custom strategy + with `@st.composite`, but until we have duplicated code inline is fine. + + That accounts for most of the function; the actual test is just three + lines to calculate and compare actual vs expected results! + """ + numeric_dtypes = hynp.integer_dtypes() | hynp.floating_dtypes() + # Generate shapes for the bounds which can be broadcast with each other + # and with the base shape. Below, we might decide to use scalar bounds, + # but it's clearer to generate these shapes unconditionally in advance. + in_shapes, result_shape = data.draw( + hynp.mutually_broadcastable_shapes( + num_shapes=2, base_shape=arr.shape + ) + ) + # Scalar `nan` is deprecated due to the differing behaviour it shows. + s = numeric_dtypes.flatmap( + lambda x: hynp.from_dtype(x, allow_nan=False)) + amin = data.draw(s | hynp.arrays(dtype=numeric_dtypes, + shape=in_shapes[0], elements={"allow_nan": False})) + amax = data.draw(s | hynp.arrays(dtype=numeric_dtypes, + shape=in_shapes[1], elements={"allow_nan": False})) + + # Then calculate our result and expected result and check that they're + # equal! See gh-12519 and gh-19457 for discussion deciding on this + # property and the result_type argument. + result = np.clip(arr, amin, amax) + t = np.result_type(arr, amin, amax) + expected = np.minimum(amax, np.maximum(arr, amin, dtype=t), dtype=t) + assert result.dtype == t + assert_array_equal(result, expected) + + def test_clip_min_max_args(self): + arr = np.arange(5) + + assert_array_equal(np.clip(arr), arr) + assert_array_equal(np.clip(arr, min=2, max=3), np.clip(arr, 2, 3)) + assert_array_equal(np.clip(arr, min=None, max=2), + np.clip(arr, None, 2)) + + with assert_raises_regex(TypeError, "missing 1 required positional " + "argument: 'a_max'"): + np.clip(arr, 2) + with assert_raises_regex(TypeError, "missing 1 required positional " + "argument: 'a_min'"): + np.clip(arr, a_max=2) + msg = ("Passing `min` or `max` keyword argument when `a_min` and " + "`a_max` are provided is forbidden.") + with assert_raises_regex(ValueError, msg): + np.clip(arr, 2, 3, max=3) + with assert_raises_regex(ValueError, msg): + np.clip(arr, 2, 3, min=2) + + @pytest.mark.parametrize("dtype,min,max", [ + ("int32", -2**32 - 1, 2**32), + ("int32", -2**320, None), + ("int32", None, 2**300), + ("int32", -1000, 2**32), + ("int32", -2**32 - 1, 1000), + ("uint8", -1, 129), + ]) + def test_out_of_bound_pyints(self, dtype, min, max): + a = np.arange(10000).astype(dtype) + # Check min only + c = np.clip(a, min=min, max=max) + assert not np.may_share_memory(a, c) + assert c.dtype == a.dtype + if min is not None: + assert (c >= min).all() + if max is not None: + assert (c <= max).all() + + +class TestAllclose: + rtol = 1e-5 + atol = 1e-8 + + def setup_method(self): + self.olderr = np.seterr(invalid='ignore') + + def teardown_method(self): + np.seterr(**self.olderr) + + def tst_allclose(self, x, y): + assert_(np.allclose(x, y), f"{x} and {y} not close") + + def tst_not_allclose(self, x, y): + assert_(not np.allclose(x, y), f"{x} and {y} shouldn't be close") + + def test_ip_allclose(self): + # Parametric test factory. + arr = np.array([100, 1000]) + aran = np.arange(125).reshape((5, 5, 5)) + + atol = self.atol + rtol = self.rtol + + data = [([1, 0], [1, 0]), + ([atol], [0]), + ([1], [1 + rtol + atol]), + (arr, arr + arr * rtol), + (arr, arr + arr * rtol + atol * 2), + (aran, aran + aran * rtol), + (np.inf, np.inf), + (np.inf, [np.inf])] + + for (x, y) in data: + self.tst_allclose(x, y) + + def test_ip_not_allclose(self): + # Parametric test factory. + aran = np.arange(125).reshape((5, 5, 5)) + + atol = self.atol + rtol = self.rtol + + data = [([np.inf, 0], [1, np.inf]), + ([np.inf, 0], [1, 0]), + ([np.inf, np.inf], [1, np.inf]), + ([np.inf, np.inf], [1, 0]), + ([-np.inf, 0], [np.inf, 0]), + ([np.nan, 0], [np.nan, 0]), + ([atol * 2], [0]), + ([1], [1 + rtol + atol * 2]), + (aran, aran + aran * atol + atol * 2), + (np.array([np.inf, 1]), np.array([0, np.inf]))] + + for (x, y) in data: + self.tst_not_allclose(x, y) + + def test_no_parameter_modification(self): + x = np.array([np.inf, 1]) + y = np.array([0, np.inf]) + np.allclose(x, y) + assert_array_equal(x, np.array([np.inf, 1])) + assert_array_equal(y, np.array([0, np.inf])) + + def test_min_int(self): + # Could make problems because of abs(min_int) == min_int + min_int = np.iinfo(np.int_).min + a = np.array([min_int], dtype=np.int_) + assert_(np.allclose(a, a)) + + def test_equalnan(self): + x = np.array([1.0, np.nan]) + assert_(np.allclose(x, x, equal_nan=True)) + + def test_return_class_is_ndarray(self): + # Issue gh-6475 + # Check that allclose does not preserve subtypes + class Foo(np.ndarray): + def __new__(cls, *args, **kwargs): + return np.array(*args, **kwargs).view(cls) + + a = Foo([1]) + assert_(type(np.allclose(a, a)) is bool) + + +class TestIsclose: + rtol = 1e-5 + atol = 1e-8 + + def _setup(self): + atol = self.atol + rtol = self.rtol + arr = np.array([100, 1000]) + aran = np.arange(125).reshape((5, 5, 5)) + + self.all_close_tests = [ + ([1, 0], [1, 0]), + ([atol], [0]), + ([1], [1 + rtol + atol]), + (arr, arr + arr * rtol), + (arr, arr + arr * rtol + atol), + (aran, aran + aran * rtol), + (np.inf, np.inf), + (np.inf, [np.inf]), + ([np.inf, -np.inf], [np.inf, -np.inf]), + ] + self.none_close_tests = [ + ([np.inf, 0], [1, np.inf]), + ([np.inf, -np.inf], [1, 0]), + ([np.inf, np.inf], [1, -np.inf]), + ([np.inf, np.inf], [1, 0]), + ([np.nan, 0], [np.nan, -np.inf]), + ([atol * 2], [0]), + ([1], [1 + rtol + atol * 2]), + (aran, aran + rtol * 1.1 * aran + atol * 1.1), + (np.array([np.inf, 1]), np.array([0, np.inf])), + ] + self.some_close_tests = [ + ([np.inf, 0], [np.inf, atol * 2]), + ([atol, 1, 1e6 * (1 + 2 * rtol) + atol], [0, np.nan, 1e6]), + (np.arange(3), [0, 1, 2.1]), + (np.nan, [np.nan, np.nan, np.nan]), + ([0], [atol, np.inf, -np.inf, np.nan]), + (0, [atol, np.inf, -np.inf, np.nan]), + ] + self.some_close_results = [ + [True, False], + [True, False, False], + [True, True, False], + [False, False, False], + [True, False, False, False], + [True, False, False, False], + ] + + def test_ip_isclose(self): + self._setup() + tests = self.some_close_tests + results = self.some_close_results + for (x, y), result in zip(tests, results): + assert_array_equal(np.isclose(x, y), result) + + x = np.array([2.1, 2.1, 2.1, 2.1, 5, np.nan]) + y = np.array([2, 2, 2, 2, np.nan, 5]) + atol = [0.11, 0.09, 1e-8, 1e-8, 1, 1] + rtol = [1e-8, 1e-8, 0.06, 0.04, 1, 1] + expected = np.array([True, False, True, False, False, False]) + assert_array_equal(np.isclose(x, y, rtol=rtol, atol=atol), expected) + + message = "operands could not be broadcast together..." + atol = np.array([1e-8, 1e-8]) + with assert_raises(ValueError, msg=message): + np.isclose(x, y, atol=atol) + + rtol = np.array([1e-5, 1e-5]) + with assert_raises(ValueError, msg=message): + np.isclose(x, y, rtol=rtol) + + def test_nep50_isclose(self): + below_one = float(1. - np.finfo('f8').eps) + f32 = np.array(below_one, 'f4') # This is just 1 at float32 precision + assert f32 > np.array(below_one) + # NEP 50 broadcasting of python scalars + assert f32 == below_one + # Test that it works for isclose arguments too (and that those fail if + # one uses a numpy float64). + assert np.isclose(f32, below_one, atol=0, rtol=0) + assert np.isclose(f32, np.float32(0), atol=below_one) + assert np.isclose(f32, 2, atol=0, rtol=below_one / 2) + assert not np.isclose(f32, np.float64(below_one), atol=0, rtol=0) + assert not np.isclose(f32, np.float32(0), atol=np.float64(below_one)) + assert not np.isclose(f32, 2, atol=0, rtol=np.float64(below_one / 2)) + + def tst_all_isclose(self, x, y): + assert_(np.all(np.isclose(x, y)), f"{x} and {y} not close") + + def tst_none_isclose(self, x, y): + msg = "%s and %s shouldn't be close" + assert_(not np.any(np.isclose(x, y)), msg % (x, y)) + + def tst_isclose_allclose(self, x, y): + msg = "isclose.all() and allclose aren't same for %s and %s" + msg2 = "isclose and allclose aren't same for %s and %s" + if np.isscalar(x) and np.isscalar(y): + assert_(np.isclose(x, y) == np.allclose(x, y), msg=msg2 % (x, y)) + else: + assert_array_equal( + np.isclose(x, y).all(), np.allclose(x, y), msg % (x, y) + ) + + def test_ip_all_isclose(self): + self._setup() + for (x, y) in self.all_close_tests: + self.tst_all_isclose(x, y) + + x = np.array([2.3, 3.6, 4.4, np.nan]) + y = np.array([2, 3, 4, np.nan]) + atol = [0.31, 0, 0, 1] + rtol = [0, 0.21, 0.11, 1] + assert np.allclose(x, y, atol=atol, rtol=rtol, equal_nan=True) + assert not np.allclose(x, y, atol=0.1, rtol=0.1, equal_nan=True) + + # Show that gh-14330 is resolved + assert np.allclose([1, 2, float('nan')], [1, 2, float('nan')], + atol=[1, 1, 1], equal_nan=True) + + def test_ip_none_isclose(self): + self._setup() + for (x, y) in self.none_close_tests: + self.tst_none_isclose(x, y) + + def test_ip_isclose_allclose(self): + self._setup() + tests = (self.all_close_tests + self.none_close_tests + + self.some_close_tests) + for (x, y) in tests: + self.tst_isclose_allclose(x, y) + + def test_equal_nan(self): + assert_array_equal(np.isclose(np.nan, np.nan, equal_nan=True), [True]) + arr = np.array([1.0, np.nan]) + assert_array_equal(np.isclose(arr, arr, equal_nan=True), [True, True]) + + def test_masked_arrays(self): + # Make sure to test the output type when arguments are interchanged. + + x = np.ma.masked_where([True, True, False], np.arange(3)) + assert_(type(x) is type(np.isclose(2, x))) + assert_(type(x) is type(np.isclose(x, 2))) + + x = np.ma.masked_where([True, True, False], [np.nan, np.inf, np.nan]) + assert_(type(x) is type(np.isclose(np.inf, x))) + assert_(type(x) is type(np.isclose(x, np.inf))) + + x = np.ma.masked_where([True, True, False], [np.nan, np.nan, np.nan]) + y = np.isclose(np.nan, x, equal_nan=True) + assert_(type(x) is type(y)) + # Ensure that the mask isn't modified... + assert_array_equal([True, True, False], y.mask) + y = np.isclose(x, np.nan, equal_nan=True) + assert_(type(x) is type(y)) + # Ensure that the mask isn't modified... + assert_array_equal([True, True, False], y.mask) + + x = np.ma.masked_where([True, True, False], [np.nan, np.nan, np.nan]) + y = np.isclose(x, x, equal_nan=True) + assert_(type(x) is type(y)) + # Ensure that the mask isn't modified... + assert_array_equal([True, True, False], y.mask) + + def test_scalar_return(self): + assert_(np.isscalar(np.isclose(1, 1))) + + def test_no_parameter_modification(self): + x = np.array([np.inf, 1]) + y = np.array([0, np.inf]) + np.isclose(x, y) + assert_array_equal(x, np.array([np.inf, 1])) + assert_array_equal(y, np.array([0, np.inf])) + + def test_non_finite_scalar(self): + # GH7014, when two scalars are compared the output should also be a + # scalar + assert_(np.isclose(np.inf, -np.inf) is np.False_) + assert_(np.isclose(0, np.inf) is np.False_) + assert_(type(np.isclose(0, np.inf)) is np.bool) + + def test_timedelta(self): + # Allclose currently works for timedelta64 as long as `atol` is + # an integer or also a timedelta64 + a = np.array([[1, 2, 3, "NaT"]], dtype="m8[ns]") + assert np.isclose(a, a, atol=0, equal_nan=True).all() + assert np.isclose(a, a, atol=np.timedelta64(1, "ns"), equal_nan=True).all() + assert np.allclose(a, a, atol=0, equal_nan=True) + assert np.allclose(a, a, atol=np.timedelta64(1, "ns"), equal_nan=True) + + def test_tol_warnings(self): + a = np.array([1, 2, 3]) + b = np.array([np.inf, np.nan, 1]) + + for i in b: + for j in b: + # Making sure that i and j are not both numbers, + # because that won't create a warning + if (i == 1) and (j == 1): + continue + + with warnings.catch_warnings(record=True) as w: + + warnings.simplefilter("always") + c = np.isclose(a, a, atol=i, rtol=j) + assert len(w) == 1 + assert issubclass(w[-1].category, RuntimeWarning) + expected = f"One of rtol or atol is not valid, atol: {i}, rtol: {j}" + assert expected in str(w[-1].message) + + +class TestStdVar: + def _create_data(self): + A = np.array([1, -1, 1, -1]) + real_var = 1 + return A, real_var + + def test_basic(self): + A, real_var = self._create_data() + assert_almost_equal(np.var(A), real_var) + assert_almost_equal(np.std(A)**2, real_var) + + def test_scalars(self): + assert_equal(np.var(1), 0) + assert_equal(np.std(1), 0) + + def test_ddof1(self): + A, real_var = self._create_data() + assert_almost_equal(np.var(A, ddof=1), + real_var * len(A) / (len(A) - 1)) + assert_almost_equal(np.std(A, ddof=1)**2, + real_var * len(A) / (len(A) - 1)) + + def test_ddof2(self): + A, real_var = self._create_data() + assert_almost_equal(np.var(A, ddof=2), + real_var * len(A) / (len(A) - 2)) + assert_almost_equal(np.std(A, ddof=2)**2, + real_var * len(A) / (len(A) - 2)) + + def test_correction(self): + A, _ = self._create_data() + assert_almost_equal( + np.var(A, correction=1), np.var(A, ddof=1) + ) + assert_almost_equal( + np.std(A, correction=1), np.std(A, ddof=1) + ) + + err_msg = "ddof and correction can't be provided simultaneously." + + with assert_raises_regex(ValueError, err_msg): + np.var(A, ddof=1, correction=0) + + with assert_raises_regex(ValueError, err_msg): + np.std(A, ddof=1, correction=1) + + def test_out_scalar(self): + d = np.arange(10) + out = np.array(0.) + r = np.std(d, out=out) + assert_(r is out) + assert_array_equal(r, out) + r = np.var(d, out=out) + assert_(r is out) + assert_array_equal(r, out) + r = np.mean(d, out=out) + assert_(r is out) + assert_array_equal(r, out) + + +class TestStdVarComplex: + def test_basic(self): + A = np.array([1, 1.j, -1, -1.j]) + real_var = 1 + assert_almost_equal(np.var(A), real_var) + assert_almost_equal(np.std(A)**2, real_var) + + def test_scalars(self): + assert_equal(np.var(1j), 0) + assert_equal(np.std(1j), 0) + + +class TestCreationFuncs: + def check_function(self, func, fill_value=None): + dtypes_info = {np.dtype(tp) for tp in itertools.chain(*sctypes.values())} + keyfunc = lambda dtype: dtype.str + variable_sized = {tp for tp in dtypes_info if tp.str.endswith('0')} + dtypes = sorted(dtypes_info - variable_sized | + {np.dtype(tp.str.replace("0", str(i))) + for tp in variable_sized for i in range(1, 10)}, + key=keyfunc) + dtypes += [type(dt) for dt in sorted(dtypes_info, key=keyfunc)] + orders = {'C': 'c_contiguous', 'F': 'f_contiguous'} + ndims = 10 + + par = ((0, 1, 2), + range(ndims), + orders, + dtypes) + fill_kwarg = {} + if fill_value is not None: + fill_kwarg = {'fill_value': fill_value} + + for size, ndims, order, dtype in itertools.product(*par): + shape = ndims * [size] + + is_void = dtype is np.dtypes.VoidDType or ( + isinstance(dtype, np.dtype) and dtype.str.startswith('|V')) + + # do not fill void type + if fill_kwarg and is_void: + continue + + arr = func(shape, order=order, dtype=dtype, + **fill_kwarg) + + if isinstance(dtype, np.dtype): + assert_equal(arr.dtype, dtype) + elif isinstance(dtype, type(np.dtype)): + if dtype in (np.dtypes.StrDType, np.dtypes.BytesDType): + dtype_str = np.dtype(dtype.type).str.replace('0', '1') + assert_equal(arr.dtype, np.dtype(dtype_str)) + else: + assert_equal(arr.dtype, np.dtype(dtype.type)) + assert_(getattr(arr.flags, orders[order])) + + if fill_value is not None: + if arr.dtype.str.startswith('|S'): + val = str(fill_value) + else: + val = fill_value + assert_equal(arr, dtype.type(val)) + + def test_zeros(self): + self.check_function(np.zeros) + + def test_ones(self): + self.check_function(np.ones) + + def test_empty(self): + self.check_function(np.empty) + + def test_full(self): + self.check_function(np.full, 0) + self.check_function(np.full, 1) + + @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") + def test_for_reference_leak(self): + # Make sure we have an object for reference + dim = 1 + beg = sys.getrefcount(dim) + np.zeros([dim] * 10) + assert_(sys.getrefcount(dim) == beg) + np.ones([dim] * 10) + assert_(sys.getrefcount(dim) == beg) + np.empty([dim] * 10) + assert_(sys.getrefcount(dim) == beg) + np.full([dim] * 10, 0) + assert_(sys.getrefcount(dim) == beg) + + @pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO") + @pytest.mark.xfail(IS_PYPY, reason="PyPy does not modify tp_doc") + @pytest.mark.parametrize("func", [np.empty, np.zeros, np.ones, np.full]) + def test_signatures(self, func): + sig = inspect.signature(func) + params = sig.parameters + + assert len(params) in {5, 6} + + assert 'shape' in params + assert params["shape"].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD + assert params["shape"].default is inspect.Parameter.empty + + assert 'dtype' in params + assert params["dtype"].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD + assert params["dtype"].default is None + + assert 'order' in params + assert params["order"].kind is inspect.Parameter.POSITIONAL_OR_KEYWORD + assert params["order"].default == "C" + + assert 'device' in params + assert params["device"].kind is inspect.Parameter.KEYWORD_ONLY + assert params["device"].default is None + + assert 'like' in params + assert params["like"].kind is inspect.Parameter.KEYWORD_ONLY + assert params["like"].default is None + + +class TestLikeFuncs: + '''Test ones_like, zeros_like, empty_like and full_like''' + + def compare_array_value(self, dz, value, fill_value): + if value is not None: + if fill_value: + # Conversion is close to what np.full_like uses + # but we may want to convert directly in the future + # which may result in errors (where this does not). + z = np.array(value).astype(dz.dtype) + assert_(np.all(dz == z)) + else: + assert_(np.all(dz == value)) + + def check_like_function(self, like_function, value, fill_value=False): + data = [ + # Array scalars + (np.array(3.), None), + (np.array(3), 'f8'), + # 1D arrays + (np.arange(6, dtype='f4'), None), + (np.arange(6), 'c16'), + # 2D C-layout arrays + (np.arange(6).reshape(2, 3), None), + (np.arange(6).reshape(3, 2), 'i1'), + # 2D F-layout arrays + (np.arange(6).reshape((2, 3), order='F'), None), + (np.arange(6).reshape((3, 2), order='F'), 'i1'), + # 3D C-layout arrays + (np.arange(24).reshape(2, 3, 4), None), + (np.arange(24).reshape(4, 3, 2), 'f4'), + # 3D F-layout arrays + (np.arange(24).reshape((2, 3, 4), order='F'), None), + (np.arange(24).reshape((4, 3, 2), order='F'), 'f4'), + # 3D non-C/F-layout arrays + (np.arange(24).reshape(2, 3, 4).swapaxes(0, 1), None), + (np.arange(24).reshape(4, 3, 2).swapaxes(0, 1), '?'), + ] + shapes = [(), (5,), (5, 6,), (5, 6, 7,)] + + if fill_value: + fill_kwarg = {'fill_value': value} + else: + fill_kwarg = {} + for d, dtype in data: + # default (K) order, dtype + dz = like_function(d, dtype=dtype, **fill_kwarg) + assert_equal(dz.shape, d.shape) + assert_equal(np.array(dz.strides) * d.dtype.itemsize, + np.array(d.strides) * dz.dtype.itemsize) + assert_equal(d.flags.c_contiguous, dz.flags.c_contiguous) + assert_equal(d.flags.f_contiguous, dz.flags.f_contiguous) + if dtype is None: + assert_equal(dz.dtype, d.dtype) + else: + assert_equal(dz.dtype, np.dtype(dtype)) + self.compare_array_value(dz, value, fill_value) + + # C order, default dtype + dz = like_function(d, order='C', dtype=dtype, **fill_kwarg) + assert_equal(dz.shape, d.shape) + assert_(dz.flags.c_contiguous) + if dtype is None: + assert_equal(dz.dtype, d.dtype) + else: + assert_equal(dz.dtype, np.dtype(dtype)) + self.compare_array_value(dz, value, fill_value) + + # F order, default dtype + dz = like_function(d, order='F', dtype=dtype, **fill_kwarg) + assert_equal(dz.shape, d.shape) + assert_(dz.flags.f_contiguous) + if dtype is None: + assert_equal(dz.dtype, d.dtype) + else: + assert_equal(dz.dtype, np.dtype(dtype)) + self.compare_array_value(dz, value, fill_value) + + # A order + dz = like_function(d, order='A', dtype=dtype, **fill_kwarg) + assert_equal(dz.shape, d.shape) + if d.flags.f_contiguous: + assert_(dz.flags.f_contiguous) + else: + assert_(dz.flags.c_contiguous) + if dtype is None: + assert_equal(dz.dtype, d.dtype) + else: + assert_equal(dz.dtype, np.dtype(dtype)) + self.compare_array_value(dz, value, fill_value) + + # Test the 'shape' parameter + for s in shapes: + for o in 'CFA': + sz = like_function(d, dtype=dtype, shape=s, order=o, + **fill_kwarg) + assert_equal(sz.shape, s) + if dtype is None: + assert_equal(sz.dtype, d.dtype) + else: + assert_equal(sz.dtype, np.dtype(dtype)) + if o == 'C' or (o == 'A' and d.flags.c_contiguous): + assert_(sz.flags.c_contiguous) + elif o == 'F' or (o == 'A' and d.flags.f_contiguous): + assert_(sz.flags.f_contiguous) + self.compare_array_value(sz, value, fill_value) + + if (d.ndim != len(s)): + assert_equal(np.argsort(like_function(d, dtype=dtype, + shape=s, order='K', + **fill_kwarg).strides), + np.argsort(np.empty(s, dtype=dtype, + order='C').strides)) + else: + assert_equal(np.argsort(like_function(d, dtype=dtype, + shape=s, order='K', + **fill_kwarg).strides), + np.argsort(d.strides)) + + # Test the 'subok' parameter + class MyNDArray(np.ndarray): + pass + + a = np.array([[1, 2], [3, 4]]).view(MyNDArray) + + b = like_function(a, **fill_kwarg) + assert_(type(b) is MyNDArray) + + b = like_function(a, subok=False, **fill_kwarg) + assert_(type(b) is not MyNDArray) + + # Test invalid dtype + with assert_raises(TypeError): + a = np.array(b"abc") + like_function(a, dtype="S-1", **fill_kwarg) + + def test_ones_like(self): + self.check_like_function(np.ones_like, 1) + + def test_zeros_like(self): + self.check_like_function(np.zeros_like, 0) + + def test_empty_like(self): + self.check_like_function(np.empty_like, None) + + def test_filled_like(self): + self.check_like_function(np.full_like, 0, True) + self.check_like_function(np.full_like, 1, True) + # Large integers may overflow, but using int64 is OK (casts) + # see also gh-27075 + with pytest.raises(OverflowError): + np.full_like(np.ones(3, dtype=np.int8), 1000) + self.check_like_function(np.full_like, np.int64(1000), True) + self.check_like_function(np.full_like, 123.456, True) + # Inf to integer casts cause invalid-value errors: ignore them. + with np.errstate(invalid="ignore"): + self.check_like_function(np.full_like, np.inf, True) + + @pytest.mark.parametrize('likefunc', [np.empty_like, np.full_like, + np.zeros_like, np.ones_like]) + @pytest.mark.parametrize('dtype', [str, bytes]) + def test_dtype_str_bytes(self, likefunc, dtype): + # Regression test for gh-19860 + a = np.arange(16).reshape(2, 8) + b = a[:, ::2] # Ensure b is not contiguous. + kwargs = {'fill_value': ''} if likefunc == np.full_like else {} + result = likefunc(b, dtype=dtype, **kwargs) + if dtype == str: + assert result.strides == (16, 4) + else: + # dtype is bytes + assert result.strides == (4, 1) + + +class TestCorrelate: + def _setup(self, dt): + self.x = np.array([1, 2, 3, 4, 5], dtype=dt) + self.xs = np.arange(1, 20)[::3] + self.y = np.array([-1, -2, -3], dtype=dt) + self.z1 = np.array([-3., -8., -14., -20., -26., -14., -5.], dtype=dt) + self.z1_4 = np.array([-2., -5., -8., -11., -14., -5.], dtype=dt) + self.z1r = np.array([-15., -22., -22., -16., -10., -4., -1.], dtype=dt) + self.z2 = np.array([-5., -14., -26., -20., -14., -8., -3.], dtype=dt) + self.z2r = np.array([-1., -4., -10., -16., -22., -22., -15.], dtype=dt) + self.zs = np.array([-3., -14., -30., -48., -66., -84., + -102., -54., -19.], dtype=dt) + + def test_float(self): + self._setup(float) + z = np.correlate(self.x, self.y, 'full') + assert_array_almost_equal(z, self.z1) + z = np.correlate(self.x, self.y[:-1], 'full') + assert_array_almost_equal(z, self.z1_4) + z = np.correlate(self.y, self.x, 'full') + assert_array_almost_equal(z, self.z2) + z = np.correlate(self.x[::-1], self.y, 'full') + assert_array_almost_equal(z, self.z1r) + z = np.correlate(self.y, self.x[::-1], 'full') + assert_array_almost_equal(z, self.z2r) + z = np.correlate(self.xs, self.y, 'full') + assert_array_almost_equal(z, self.zs) + + def test_object(self): + self._setup(Decimal) + z = np.correlate(self.x, self.y, 'full') + assert_array_almost_equal(z, self.z1) + z = np.correlate(self.y, self.x, 'full') + assert_array_almost_equal(z, self.z2) + + def test_no_overwrite(self): + d = np.ones(100) + k = np.ones(3) + np.correlate(d, k) + assert_array_equal(d, np.ones(100)) + assert_array_equal(k, np.ones(3)) + + def test_complex(self): + x = np.array([1, 2, 3, 4 + 1j], dtype=complex) + y = np.array([-1, -2j, 3 + 1j], dtype=complex) + r_z = np.array([3 - 1j, 6, 8 + 1j, 11 + 5j, -5 + 8j, -4 - 1j], dtype=complex) + r_z = r_z[::-1].conjugate() + z = np.correlate(y, x, mode='full') + assert_array_almost_equal(z, r_z) + + def test_zero_size(self): + with pytest.raises(ValueError): + np.correlate(np.array([]), np.ones(1000), mode='full') + with pytest.raises(ValueError): + np.correlate(np.ones(1000), np.array([]), mode='full') + + def test_mode(self): + d = np.ones(100) + k = np.ones(3) + default_mode = np.correlate(d, k, mode='valid') + with assert_raises(ValueError): + np.correlate(d, k, mode='v') + # integer mode + with assert_raises(ValueError): + np.correlate(d, k, mode=-1) + # assert_array_equal(np.correlate(d, k, mode=), default_mode) + # illegal arguments + with assert_raises(TypeError): + np.correlate(d, k, mode=None) + + +class TestConvolve: + def test_object(self): + d = [1.] * 100 + k = [1.] * 3 + assert_array_almost_equal(np.convolve(d, k)[2:-2], np.full(98, 3)) + + def test_no_overwrite(self): + d = np.ones(100) + k = np.ones(3) + np.convolve(d, k) + assert_array_equal(d, np.ones(100)) + assert_array_equal(k, np.ones(3)) + + def test_mode(self): + d = np.ones(100) + k = np.ones(3) + default_mode = np.convolve(d, k, mode='full') + with assert_raises(ValueError): + np.convolve(d, k, mode='f') + # integer mode + with assert_raises(ValueError): + np.convolve(d, k, mode=-1) + assert_array_equal(np.convolve(d, k, mode=2), default_mode) + # illegal arguments + with assert_raises(TypeError): + np.convolve(d, k, mode=None) + + def test_convolve_empty_input_error_message(self): + """ + Test that convolve raises the correct error message when inputs are empty. + Regression test for gh-30272 (variable swapping bug). + """ + with pytest.raises(ValueError, match="a cannot be empty"): + np.convolve(np.array([]), np.array([1, 2])) + + with pytest.raises(ValueError, match="v cannot be empty"): + np.convolve(np.array([1, 2]), np.array([])) + +class TestArgwhere: + + @pytest.mark.parametrize('nd', [0, 1, 2]) + def test_nd(self, nd): + # get an nd array with multiple elements in every dimension + x = np.empty((2,) * nd, bool) + + # none + x[...] = False + assert_equal(np.argwhere(x).shape, (0, nd)) + + # only one + x[...] = False + x.flat[0] = True + assert_equal(np.argwhere(x).shape, (1, nd)) + + # all but one + x[...] = True + x.flat[0] = False + assert_equal(np.argwhere(x).shape, (x.size - 1, nd)) + + # all + x[...] = True + assert_equal(np.argwhere(x).shape, (x.size, nd)) + + def test_2D(self): + x = np.arange(6).reshape((2, 3)) + assert_array_equal(np.argwhere(x > 1), + [[0, 2], + [1, 0], + [1, 1], + [1, 2]]) + + def test_list(self): + assert_equal(np.argwhere([4, 0, 2, 1, 3]), [[0], [2], [3], [4]]) + + +class TestRoll: + def test_roll1d(self): + x = np.arange(10) + xr = np.roll(x, 2) + assert_equal(xr, np.array([8, 9, 0, 1, 2, 3, 4, 5, 6, 7])) + + def test_roll2d(self): + x2 = np.reshape(np.arange(10), (2, 5)) + x2r = np.roll(x2, 1) + assert_equal(x2r, np.array([[9, 0, 1, 2, 3], [4, 5, 6, 7, 8]])) + + x2r = np.roll(x2, 1, axis=0) + assert_equal(x2r, np.array([[5, 6, 7, 8, 9], [0, 1, 2, 3, 4]])) + + x2r = np.roll(x2, 1, axis=1) + assert_equal(x2r, np.array([[4, 0, 1, 2, 3], [9, 5, 6, 7, 8]])) + + # Roll multiple axes at once. + x2r = np.roll(x2, 1, axis=(0, 1)) + assert_equal(x2r, np.array([[9, 5, 6, 7, 8], [4, 0, 1, 2, 3]])) + + x2r = np.roll(x2, (1, 0), axis=(0, 1)) + assert_equal(x2r, np.array([[5, 6, 7, 8, 9], [0, 1, 2, 3, 4]])) + + x2r = np.roll(x2, (-1, 0), axis=(0, 1)) + assert_equal(x2r, np.array([[5, 6, 7, 8, 9], [0, 1, 2, 3, 4]])) + + x2r = np.roll(x2, (0, 1), axis=(0, 1)) + assert_equal(x2r, np.array([[4, 0, 1, 2, 3], [9, 5, 6, 7, 8]])) + + x2r = np.roll(x2, (0, -1), axis=(0, 1)) + assert_equal(x2r, np.array([[1, 2, 3, 4, 0], [6, 7, 8, 9, 5]])) + + x2r = np.roll(x2, (1, 1), axis=(0, 1)) + assert_equal(x2r, np.array([[9, 5, 6, 7, 8], [4, 0, 1, 2, 3]])) + + x2r = np.roll(x2, (-1, -1), axis=(0, 1)) + assert_equal(x2r, np.array([[6, 7, 8, 9, 5], [1, 2, 3, 4, 0]])) + + # Roll the same axis multiple times. + x2r = np.roll(x2, 1, axis=(0, 0)) + assert_equal(x2r, np.array([[0, 1, 2, 3, 4], [5, 6, 7, 8, 9]])) + + x2r = np.roll(x2, 1, axis=(1, 1)) + assert_equal(x2r, np.array([[3, 4, 0, 1, 2], [8, 9, 5, 6, 7]])) + + # Roll more than one turn in either direction. + x2r = np.roll(x2, 6, axis=1) + assert_equal(x2r, np.array([[4, 0, 1, 2, 3], [9, 5, 6, 7, 8]])) + + x2r = np.roll(x2, -4, axis=1) + assert_equal(x2r, np.array([[4, 0, 1, 2, 3], [9, 5, 6, 7, 8]])) + + def test_roll_empty(self): + x = np.array([]) + assert_equal(np.roll(x, 1), np.array([])) + + def test_roll_unsigned_shift(self): + x = np.arange(4) + shift = np.uint16(2) + assert_equal(np.roll(x, shift), np.roll(x, 2)) + + shift = np.uint64(2**63 + 2) + assert_equal(np.roll(x, shift), np.roll(x, 2)) + + def test_roll_big_int(self): + x = np.arange(4) + assert_equal(np.roll(x, 2**100), x) + + +class TestRollaxis: + + # expected shape indexed by (axis, start) for array of + # shape (1, 2, 3, 4) + tgtshape = {(0, 0): (1, 2, 3, 4), (0, 1): (1, 2, 3, 4), + (0, 2): (2, 1, 3, 4), (0, 3): (2, 3, 1, 4), + (0, 4): (2, 3, 4, 1), + (1, 0): (2, 1, 3, 4), (1, 1): (1, 2, 3, 4), + (1, 2): (1, 2, 3, 4), (1, 3): (1, 3, 2, 4), + (1, 4): (1, 3, 4, 2), + (2, 0): (3, 1, 2, 4), (2, 1): (1, 3, 2, 4), + (2, 2): (1, 2, 3, 4), (2, 3): (1, 2, 3, 4), + (2, 4): (1, 2, 4, 3), + (3, 0): (4, 1, 2, 3), (3, 1): (1, 4, 2, 3), + (3, 2): (1, 2, 4, 3), (3, 3): (1, 2, 3, 4), + (3, 4): (1, 2, 3, 4)} + + def test_exceptions(self): + a = np.arange(1 * 2 * 3 * 4).reshape(1, 2, 3, 4) + assert_raises(AxisError, np.rollaxis, a, -5, 0) + assert_raises(AxisError, np.rollaxis, a, 0, -5) + assert_raises(AxisError, np.rollaxis, a, 4, 0) + assert_raises(AxisError, np.rollaxis, a, 0, 5) + + def test_results(self): + a = np.arange(1 * 2 * 3 * 4).reshape(1, 2, 3, 4).copy() + aind = np.indices(a.shape) + assert_(a.flags['OWNDATA']) + for (i, j) in self.tgtshape: + # positive axis, positive start + res = np.rollaxis(a, axis=i, start=j) + i0, i1, i2, i3 = aind[np.array(res.shape) - 1] + assert_(np.all(res[i0, i1, i2, i3] == a)) + assert_(res.shape == self.tgtshape[(i, j)], str((i, j))) + assert_(not res.flags['OWNDATA']) + + # negative axis, positive start + ip = i + 1 + res = np.rollaxis(a, axis=-ip, start=j) + i0, i1, i2, i3 = aind[np.array(res.shape) - 1] + assert_(np.all(res[i0, i1, i2, i3] == a)) + assert_(res.shape == self.tgtshape[(4 - ip, j)]) + assert_(not res.flags['OWNDATA']) + + # positive axis, negative start + jp = j + 1 if j < 4 else j + res = np.rollaxis(a, axis=i, start=-jp) + i0, i1, i2, i3 = aind[np.array(res.shape) - 1] + assert_(np.all(res[i0, i1, i2, i3] == a)) + assert_(res.shape == self.tgtshape[(i, 4 - jp)]) + assert_(not res.flags['OWNDATA']) + + # negative axis, negative start + ip = i + 1 + jp = j + 1 if j < 4 else j + res = np.rollaxis(a, axis=-ip, start=-jp) + i0, i1, i2, i3 = aind[np.array(res.shape) - 1] + assert_(np.all(res[i0, i1, i2, i3] == a)) + assert_(res.shape == self.tgtshape[(4 - ip, 4 - jp)]) + assert_(not res.flags['OWNDATA']) + + +class TestMoveaxis: + def test_move_to_end(self): + x = np.random.randn(5, 6, 7) + for source, expected in [(0, (6, 7, 5)), + (1, (5, 7, 6)), + (2, (5, 6, 7)), + (-1, (5, 6, 7))]: + actual = np.moveaxis(x, source, -1).shape + assert_(actual, expected) + + def test_move_new_position(self): + x = np.random.randn(1, 2, 3, 4) + for source, destination, expected in [ + (0, 1, (2, 1, 3, 4)), + (1, 2, (1, 3, 2, 4)), + (1, -1, (1, 3, 4, 2)), + ]: + actual = np.moveaxis(x, source, destination).shape + assert_(actual, expected) + + def test_preserve_order(self): + x = np.zeros((1, 2, 3, 4)) + for source, destination in [ + (0, 0), + (3, -1), + (-1, 3), + ([0, -1], [0, -1]), + ([2, 0], [2, 0]), + (range(4), range(4)), + ]: + actual = np.moveaxis(x, source, destination).shape + assert_(actual, (1, 2, 3, 4)) + + def test_move_multiples(self): + x = np.zeros((0, 1, 2, 3)) + for source, destination, expected in [ + ([0, 1], [2, 3], (2, 3, 0, 1)), + ([2, 3], [0, 1], (2, 3, 0, 1)), + ([0, 1, 2], [2, 3, 0], (2, 3, 0, 1)), + ([3, 0], [1, 0], (0, 3, 1, 2)), + ([0, 3], [0, 1], (0, 3, 1, 2)), + ]: + actual = np.moveaxis(x, source, destination).shape + assert_(actual, expected) + + def test_errors(self): + x = np.random.randn(1, 2, 3) + assert_raises_regex(AxisError, 'source.*out of bounds', + np.moveaxis, x, 3, 0) + assert_raises_regex(AxisError, 'source.*out of bounds', + np.moveaxis, x, -4, 0) + assert_raises_regex(AxisError, 'destination.*out of bounds', + np.moveaxis, x, 0, 5) + assert_raises_regex(ValueError, 'repeated axis in `source`', + np.moveaxis, x, [0, 0], [0, 1]) + assert_raises_regex(ValueError, 'repeated axis in `destination`', + np.moveaxis, x, [0, 1], [1, 1]) + assert_raises_regex(ValueError, 'must have the same number', + np.moveaxis, x, 0, [0, 1]) + assert_raises_regex(ValueError, 'must have the same number', + np.moveaxis, x, [0, 1], [0]) + + def test_array_likes(self): + x = np.ma.zeros((1, 2, 3)) + result = np.moveaxis(x, 0, 0) + assert_(x.shape, result.shape) + assert_(isinstance(result, np.ma.MaskedArray)) + + x = [1, 2, 3] + result = np.moveaxis(x, 0, 0) + assert_(x, list(result)) + assert_(isinstance(result, np.ndarray)) + + +class TestCross: + @pytest.mark.filterwarnings( + "ignore:.*2-dimensional vectors.*:DeprecationWarning" + ) + def test_2x2(self): + u = [1, 2] + v = [3, 4] + z = -2 + cp = np.cross(u, v) + assert_equal(cp, z) + cp = np.cross(v, u) + assert_equal(cp, -z) + + @pytest.mark.filterwarnings( + "ignore:.*2-dimensional vectors.*:DeprecationWarning" + ) + def test_2x3(self): + u = [1, 2] + v = [3, 4, 5] + z = np.array([10, -5, -2]) + cp = np.cross(u, v) + assert_equal(cp, z) + cp = np.cross(v, u) + assert_equal(cp, -z) + + def test_3x3(self): + u = [1, 2, 3] + v = [4, 5, 6] + z = np.array([-3, 6, -3]) + cp = np.cross(u, v) + assert_equal(cp, z) + cp = np.cross(v, u) + assert_equal(cp, -z) + + @pytest.mark.filterwarnings( + "ignore:.*2-dimensional vectors.*:DeprecationWarning" + ) + def test_broadcasting(self): + # Ticket #2624 (Trac #2032) + u = np.tile([1, 2], (11, 1)) + v = np.tile([3, 4], (11, 1)) + z = -2 + assert_equal(np.cross(u, v), z) + assert_equal(np.cross(v, u), -z) + assert_equal(np.cross(u, u), 0) + + u = np.tile([1, 2], (11, 1)).T + v = np.tile([3, 4, 5], (11, 1)) + z = np.tile([10, -5, -2], (11, 1)) + assert_equal(np.cross(u, v, axisa=0), z) + assert_equal(np.cross(v, u.T), -z) + assert_equal(np.cross(v, v), 0) + + u = np.tile([1, 2, 3], (11, 1)).T + v = np.tile([3, 4], (11, 1)).T + z = np.tile([-12, 9, -2], (11, 1)) + assert_equal(np.cross(u, v, axisa=0, axisb=0), z) + assert_equal(np.cross(v.T, u.T), -z) + assert_equal(np.cross(u.T, u.T), 0) + + u = np.tile([1, 2, 3], (5, 1)) + v = np.tile([4, 5, 6], (5, 1)).T + z = np.tile([-3, 6, -3], (5, 1)) + assert_equal(np.cross(u, v, axisb=0), z) + assert_equal(np.cross(v.T, u), -z) + assert_equal(np.cross(u, u), 0) + + @pytest.mark.filterwarnings( + "ignore:.*2-dimensional vectors.*:DeprecationWarning" + ) + def test_broadcasting_shapes(self): + u = np.ones((2, 1, 3)) + v = np.ones((5, 3)) + assert_equal(np.cross(u, v).shape, (2, 5, 3)) + u = np.ones((10, 3, 5)) + v = np.ones((2, 5)) + assert_equal(np.cross(u, v, axisa=1, axisb=0).shape, (10, 5, 3)) + assert_raises(AxisError, np.cross, u, v, axisa=1, axisb=2) + assert_raises(AxisError, np.cross, u, v, axisa=3, axisb=0) + u = np.ones((10, 3, 5, 7)) + v = np.ones((5, 7, 2)) + assert_equal(np.cross(u, v, axisa=1, axisc=2).shape, (10, 5, 3, 7)) + assert_raises(AxisError, np.cross, u, v, axisa=-5, axisb=2) + assert_raises(AxisError, np.cross, u, v, axisa=1, axisb=-4) + # gh-5885 + u = np.ones((3, 4, 2)) + for axisc in range(-2, 2): + assert_equal(np.cross(u, u, axisc=axisc).shape, (3, 4)) + + def test_uint8_int32_mixed_dtypes(self): + # regression test for gh-19138 + u = np.array([[195, 8, 9]], np.uint8) + v = np.array([250, 166, 68], np.int32) + z = np.array([[950, 11010, -30370]], dtype=np.int32) + assert_equal(np.cross(v, u), z) + assert_equal(np.cross(u, v), -z) + + @pytest.mark.parametrize("a, b", [(0, [1, 2]), ([1, 2], 3)]) + def test_zero_dimension(self, a, b): + with pytest.raises(ValueError) as exc: + np.cross(a, b) + assert "At least one array has zero dimension" in str(exc.value) + + +def test_outer_out_param(): + arr1 = np.ones((5,)) + arr2 = np.ones((2,)) + arr3 = np.linspace(-2, 2, 5) + out1 = np.ndarray(shape=(5, 5)) + out2 = np.ndarray(shape=(2, 5)) + res1 = np.outer(arr1, arr3, out1) + assert_equal(res1, out1) + assert_equal(np.outer(arr2, arr3, out2), out2) + + +class TestIndices: + + def test_simple(self): + [x, y] = np.indices((4, 3)) + assert_array_equal(x, np.array([[0, 0, 0], + [1, 1, 1], + [2, 2, 2], + [3, 3, 3]])) + assert_array_equal(y, np.array([[0, 1, 2], + [0, 1, 2], + [0, 1, 2], + [0, 1, 2]])) + + def test_single_input(self): + [x] = np.indices((4,)) + assert_array_equal(x, np.array([0, 1, 2, 3])) + + [x] = np.indices((4,), sparse=True) + assert_array_equal(x, np.array([0, 1, 2, 3])) + + def test_scalar_input(self): + assert_array_equal([], np.indices(())) + assert_array_equal([], np.indices((), sparse=True)) + assert_array_equal([[]], np.indices((0,))) + assert_array_equal([[]], np.indices((0,), sparse=True)) + + def test_sparse(self): + [x, y] = np.indices((4, 3), sparse=True) + assert_array_equal(x, np.array([[0], [1], [2], [3]])) + assert_array_equal(y, np.array([[0, 1, 2]])) + + @pytest.mark.parametrize("dtype", [np.int32, np.int64, np.float32, np.float64]) + @pytest.mark.parametrize("dims", [(), (0,), (4, 3)]) + def test_return_type(self, dtype, dims): + inds = np.indices(dims, dtype=dtype) + assert_(inds.dtype == dtype) + + for arr in np.indices(dims, dtype=dtype, sparse=True): + assert_(arr.dtype == dtype) + + +class TestRequire: + flag_names = ['C', 'C_CONTIGUOUS', 'CONTIGUOUS', + 'F', 'F_CONTIGUOUS', 'FORTRAN', + 'A', 'ALIGNED', + 'W', 'WRITEABLE', + 'O', 'OWNDATA'] + + def generate_all_false(self, dtype): + arr = np.zeros((2, 2), [('junk', 'i1'), ('a', dtype)]) + arr.setflags(write=False) + a = arr['a'] + assert_(not a.flags['C']) + assert_(not a.flags['F']) + assert_(not a.flags['O']) + assert_(not a.flags['W']) + assert_(not a.flags['A']) + return a + + def set_and_check_flag(self, flag, dtype, arr): + if dtype is None: + dtype = arr.dtype + b = np.require(arr, dtype, [flag]) + assert_(b.flags[flag]) + assert_(b.dtype == dtype) + + # a further call to np.require ought to return the same array + # unless OWNDATA is specified. + c = np.require(b, None, [flag]) + if flag[0] != 'O': + assert_(c is b) + else: + assert_(c.flags[flag]) + + def test_require_each(self): + + id = ['f8', 'i4'] + fd = [None, 'f8', 'c16'] + for idtype, fdtype, flag in itertools.product(id, fd, self.flag_names): + a = self.generate_all_false(idtype) + self.set_and_check_flag(flag, fdtype, a) + + def test_unknown_requirement(self): + a = self.generate_all_false('f8') + assert_raises(KeyError, np.require, a, None, 'Q') + + def test_non_array_input(self): + a = np.require([1, 2, 3, 4], 'i4', ['C', 'A', 'O']) + assert_(a.flags['O']) + assert_(a.flags['C']) + assert_(a.flags['A']) + assert_(a.dtype == 'i4') + assert_equal(a, [1, 2, 3, 4]) + + def test_C_and_F_simul(self): + a = self.generate_all_false('f8') + assert_raises(ValueError, np.require, a, None, ['C', 'F']) + + def test_ensure_array(self): + class ArraySubclass(np.ndarray): + pass + + a = ArraySubclass((2, 2)) + b = np.require(a, None, ['E']) + assert_(type(b) is np.ndarray) + + def test_preserve_subtype(self): + class ArraySubclass(np.ndarray): + pass + + for flag in self.flag_names: + a = ArraySubclass((2, 2)) + self.set_and_check_flag(flag, None, a) + + +class TestBroadcast: + def test_broadcast_in_args(self): + # gh-5881 + arrs = [np.empty((6, 7)), np.empty((5, 6, 1)), np.empty((7,)), + np.empty((5, 1, 7))] + mits = [np.broadcast(*arrs), + np.broadcast(np.broadcast(*arrs[:0]), np.broadcast(*arrs[0:])), + np.broadcast(np.broadcast(*arrs[:1]), np.broadcast(*arrs[1:])), + np.broadcast(np.broadcast(*arrs[:2]), np.broadcast(*arrs[2:])), + np.broadcast(arrs[0], np.broadcast(*arrs[1:-1]), arrs[-1])] + for mit in mits: + assert_equal(mit.shape, (5, 6, 7)) + assert_equal(mit.ndim, 3) + assert_equal(mit.nd, 3) + assert_equal(mit.numiter, 4) + for a, ia in zip(arrs, mit.iters): + assert_(a is ia.base) + + def test_broadcast_single_arg(self): + # gh-6899 + arrs = [np.empty((5, 6, 7))] + mit = np.broadcast(*arrs) + assert_equal(mit.shape, (5, 6, 7)) + assert_equal(mit.ndim, 3) + assert_equal(mit.nd, 3) + assert_equal(mit.numiter, 1) + assert_(arrs[0] is mit.iters[0].base) + + def test_number_of_arguments(self): + arr = np.empty((5,)) + for j in range(70): + arrs = [arr] * j + if j > 64: + assert_raises(ValueError, np.broadcast, *arrs) + else: + mit = np.broadcast(*arrs) + assert_equal(mit.numiter, j) + + def test_broadcast_error_kwargs(self): + # gh-13455 + arrs = [np.empty((5, 6, 7))] + mit = np.broadcast(*arrs) + mit2 = np.broadcast(*arrs, **{}) # noqa: PIE804 + assert_equal(mit.shape, mit2.shape) + assert_equal(mit.ndim, mit2.ndim) + assert_equal(mit.nd, mit2.nd) + assert_equal(mit.numiter, mit2.numiter) + assert_(mit.iters[0].base is mit2.iters[0].base) + + assert_raises(ValueError, np.broadcast, 1, x=1) + + def test_shape_mismatch_error_message(self): + with pytest.raises(ValueError, match=r"arg 0 with shape \(1, 3\) and " + r"arg 2 with shape \(2,\)"): + np.broadcast([[1, 2, 3]], [[4], [5]], [6, 7]) + + @pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO") + @pytest.mark.xfail(IS_PYPY, reason="PyPy does not modify tp_doc") + def test_signatures(self): + sig_new = inspect.signature(np.broadcast) + assert len(sig_new.parameters) == 1 + assert "arrays" in sig_new.parameters + assert sig_new.parameters["arrays"].kind == inspect.Parameter.VAR_POSITIONAL + + sig_reset = inspect.signature(np.broadcast.reset) + assert len(sig_reset.parameters) == 1 + assert "self" in sig_reset.parameters + assert sig_reset.parameters["self"].kind == inspect.Parameter.POSITIONAL_ONLY + + +class TestKeepdims: + + class sub_array(np.ndarray): + def sum(self, axis=None, dtype=None, out=None): + return np.ndarray.sum(self, axis, dtype, out, keepdims=True) + + def test_raise(self): + sub_class = self.sub_array + x = np.arange(30).view(sub_class) + assert_raises(TypeError, np.sum, x, keepdims=True) + + +class TestTensordot: + + def test_rejects_duplicate_axes(self): + a = np.ones((2, 3, 3)) + b = np.ones((3, 3, 4)) + with pytest.raises(ValueError): + np.tensordot(a, b, axes=([1, 1], [0, 0])) + + def test_zero_dimension(self): + # Test resolution to issue #5663 + a = np.ndarray((3, 0)) + b = np.ndarray((0, 4)) + td = np.tensordot(a, b, (1, 0)) + assert_array_equal(td, np.dot(a, b)) + assert_array_equal(td, np.einsum('ij,jk', a, b)) + + def test_zero_dimensional(self): + # gh-12130 + arr_0d = np.array(1) + # contracting no axes is well defined + ret = np.tensordot(arr_0d, arr_0d, ([], [])) + assert_array_equal(ret, arr_0d) + + +class TestAsType: + + def test_astype(self): + data = [[1, 2], [3, 4]] + actual = np.astype( + np.array(data, dtype=np.int64), np.uint32 + ) + expected = np.array(data, dtype=np.uint32) + + assert_array_equal(actual, expected) + assert_equal(actual.dtype, expected.dtype) + + assert np.shares_memory( + actual, np.astype(actual, actual.dtype, copy=False) + ) + + actual = np.astype(np.int64(10), np.float64) + expected = np.float64(10) + assert_equal(actual, expected) + assert_equal(actual.dtype, expected.dtype) + + with pytest.raises(TypeError, match="Input should be a NumPy array"): + np.astype(data, np.float64) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_numerictypes.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_numerictypes.py new file mode 100644 index 0000000000000000000000000000000000000000..5763a964c41d2bda946f895337aab02dca029eb8 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_numerictypes.py @@ -0,0 +1,650 @@ +import itertools +import sys + +import pytest + +import numpy as np +import numpy._core.numerictypes as nt +from numpy._core.numerictypes import issctype, maximum_sctype, sctype2char, sctypes +from numpy.testing import ( + IS_PYPY, + assert_, + assert_equal, + assert_raises, + assert_raises_regex, +) + +# This is the structure of the table used for plain objects: +# +# +-+-+-+ +# |x|y|z| +# +-+-+-+ + +# Structure of a plain array description: +Pdescr = [ + ('x', 'i4', (2,)), + ('y', 'f8', (2, 2)), + ('z', 'u1')] + +# A plain list of tuples with values for testing: +PbufferT = [ + # x y z + ([3, 2], [[6., 4.], [6., 4.]], 8), + ([4, 3], [[7., 5.], [7., 5.]], 9), + ] + + +# This is the structure of the table used for nested objects (DON'T PANIC!): +# +# +-+---------------------------------+-----+----------+-+-+ +# |x|Info |color|info |y|z| +# | +-----+--+----------------+----+--+ +----+-----+ | | +# | |value|y2|Info2 |name|z2| |Name|Value| | | +# | | | +----+-----+--+--+ | | | | | | | +# | | | |name|value|y3|z3| | | | | | | | +# +-+-----+--+----+-----+--+--+----+--+-----+----+-----+-+-+ +# + +# The corresponding nested array description: +Ndescr = [ + ('x', 'i4', (2,)), + ('Info', [ + ('value', 'c16'), + ('y2', 'f8'), + ('Info2', [ + ('name', 'S2'), + ('value', 'c16', (2,)), + ('y3', 'f8', (2,)), + ('z3', 'u4', (2,))]), + ('name', 'S2'), + ('z2', 'b1')]), + ('color', 'S2'), + ('info', [ + ('Name', 'U8'), + ('Value', 'c16')]), + ('y', 'f8', (2, 2)), + ('z', 'u1')] + +NbufferT = [ + # x Info color info y z + # value y2 Info2 name z2 Name Value + # name value y3 z3 + ([3, 2], (6j, 6., (b'nn', [6j, 4j], [6., 4.], [1, 2]), b'NN', True), + b'cc', ('NN', 6j), [[6., 4.], [6., 4.]], 8), + ([4, 3], (7j, 7., (b'oo', [7j, 5j], [7., 5.], [2, 1]), b'OO', False), + b'dd', ('OO', 7j), [[7., 5.], [7., 5.]], 9), + ] + + +byteorder = {'little': '<', 'big': '>'}[sys.byteorder] + +def normalize_descr(descr): + "Normalize a description adding the platform byteorder." + + out = [] + for item in descr: + dtype = item[1] + if isinstance(dtype, str): + if dtype[0] not in ['|', '<', '>']: + onebyte = dtype[1:] == "1" + if onebyte or dtype[0] in ['S', 'V', 'b']: + dtype = "|" + dtype + else: + dtype = byteorder + dtype + if len(item) > 2 and np.prod(item[2]) > 1: + nitem = (item[0], dtype, item[2]) + else: + nitem = (item[0], dtype) + out.append(nitem) + elif isinstance(dtype, list): + l = normalize_descr(dtype) + out.append((item[0], l)) + else: + raise ValueError(f"Expected a str or list and got {type(item)}") + return out + + +############################################################ +# Creation tests +############################################################ + +class CreateZeros: + """Check the creation of heterogeneous arrays zero-valued""" + + def test_zeros0D(self): + """Check creation of 0-dimensional objects""" + h = np.zeros((), dtype=self._descr) + assert_(normalize_descr(self._descr) == h.dtype.descr) + assert_(h.dtype.fields['x'][0].name[:4] == 'void') + assert_(h.dtype.fields['x'][0].char == 'V') + assert_(h.dtype.fields['x'][0].type == np.void) + # A small check that data is ok + assert_equal(h['z'], np.zeros((), dtype='u1')) + + def test_zerosSD(self): + """Check creation of single-dimensional objects""" + h = np.zeros((2,), dtype=self._descr) + assert_(normalize_descr(self._descr) == h.dtype.descr) + assert_(h.dtype['y'].name[:4] == 'void') + assert_(h.dtype['y'].char == 'V') + assert_(h.dtype['y'].type == np.void) + # A small check that data is ok + assert_equal(h['z'], np.zeros((2,), dtype='u1')) + + def test_zerosMD(self): + """Check creation of multi-dimensional objects""" + h = np.zeros((2, 3), dtype=self._descr) + assert_(normalize_descr(self._descr) == h.dtype.descr) + assert_(h.dtype['z'].name == 'uint8') + assert_(h.dtype['z'].char == 'B') + assert_(h.dtype['z'].type == np.uint8) + # A small check that data is ok + assert_equal(h['z'], np.zeros((2, 3), dtype='u1')) + + +class TestCreateZerosPlain(CreateZeros): + """Check the creation of heterogeneous arrays zero-valued (plain)""" + _descr = Pdescr + +class TestCreateZerosNested(CreateZeros): + """Check the creation of heterogeneous arrays zero-valued (nested)""" + _descr = Ndescr + + +class CreateValues: + """Check the creation of heterogeneous arrays with values""" + + def test_tuple(self): + """Check creation from tuples""" + h = np.array(self._buffer, dtype=self._descr) + assert_(normalize_descr(self._descr) == h.dtype.descr) + if self.multiple_rows: + assert_(h.shape == (2,)) + else: + assert_(h.shape == ()) + + def test_list_of_tuple(self): + """Check creation from list of tuples""" + h = np.array([self._buffer], dtype=self._descr) + assert_(normalize_descr(self._descr) == h.dtype.descr) + if self.multiple_rows: + assert_(h.shape == (1, 2)) + else: + assert_(h.shape == (1,)) + + def test_list_of_list_of_tuple(self): + """Check creation from list of list of tuples""" + h = np.array([[self._buffer]], dtype=self._descr) + assert_(normalize_descr(self._descr) == h.dtype.descr) + if self.multiple_rows: + assert_(h.shape == (1, 1, 2)) + else: + assert_(h.shape == (1, 1)) + + +class TestCreateValuesPlainSingle(CreateValues): + """Check the creation of heterogeneous arrays (plain, single row)""" + _descr = Pdescr + multiple_rows = 0 + _buffer = PbufferT[0] + +class TestCreateValuesPlainMultiple(CreateValues): + """Check the creation of heterogeneous arrays (plain, multiple rows)""" + _descr = Pdescr + multiple_rows = 1 + _buffer = PbufferT + +class TestCreateValuesNestedSingle(CreateValues): + """Check the creation of heterogeneous arrays (nested, single row)""" + _descr = Ndescr + multiple_rows = 0 + _buffer = NbufferT[0] + +class TestCreateValuesNestedMultiple(CreateValues): + """Check the creation of heterogeneous arrays (nested, multiple rows)""" + _descr = Ndescr + multiple_rows = 1 + _buffer = NbufferT + + +############################################################ +# Reading tests +############################################################ + +class ReadValuesPlain: + """Check the reading of values in heterogeneous arrays (plain)""" + + def test_access_fields(self): + h = np.array(self._buffer, dtype=self._descr) + if not self.multiple_rows: + assert_(h.shape == ()) + assert_equal(h['x'], np.array(self._buffer[0], dtype='i4')) + assert_equal(h['y'], np.array(self._buffer[1], dtype='f8')) + assert_equal(h['z'], np.array(self._buffer[2], dtype='u1')) + else: + assert_(len(h) == 2) + assert_equal(h['x'], np.array([self._buffer[0][0], + self._buffer[1][0]], dtype='i4')) + assert_equal(h['y'], np.array([self._buffer[0][1], + self._buffer[1][1]], dtype='f8')) + assert_equal(h['z'], np.array([self._buffer[0][2], + self._buffer[1][2]], dtype='u1')) + + +class TestReadValuesPlainSingle(ReadValuesPlain): + """Check the creation of heterogeneous arrays (plain, single row)""" + _descr = Pdescr + multiple_rows = 0 + _buffer = PbufferT[0] + +class TestReadValuesPlainMultiple(ReadValuesPlain): + """Check the values of heterogeneous arrays (plain, multiple rows)""" + _descr = Pdescr + multiple_rows = 1 + _buffer = PbufferT + +class ReadValuesNested: + """Check the reading of values in heterogeneous arrays (nested)""" + + def test_access_top_fields(self): + """Check reading the top fields of a nested array""" + h = np.array(self._buffer, dtype=self._descr) + if not self.multiple_rows: + assert_(h.shape == ()) + assert_equal(h['x'], np.array(self._buffer[0], dtype='i4')) + assert_equal(h['y'], np.array(self._buffer[4], dtype='f8')) + assert_equal(h['z'], np.array(self._buffer[5], dtype='u1')) + else: + assert_(len(h) == 2) + assert_equal(h['x'], np.array([self._buffer[0][0], + self._buffer[1][0]], dtype='i4')) + assert_equal(h['y'], np.array([self._buffer[0][4], + self._buffer[1][4]], dtype='f8')) + assert_equal(h['z'], np.array([self._buffer[0][5], + self._buffer[1][5]], dtype='u1')) + + def test_nested1_acessors(self): + """Check reading the nested fields of a nested array (1st level)""" + h = np.array(self._buffer, dtype=self._descr) + if not self.multiple_rows: + assert_equal(h['Info']['value'], + np.array(self._buffer[1][0], dtype='c16')) + assert_equal(h['Info']['y2'], + np.array(self._buffer[1][1], dtype='f8')) + assert_equal(h['info']['Name'], + np.array(self._buffer[3][0], dtype='U2')) + assert_equal(h['info']['Value'], + np.array(self._buffer[3][1], dtype='c16')) + else: + assert_equal(h['Info']['value'], + np.array([self._buffer[0][1][0], + self._buffer[1][1][0]], + dtype='c16')) + assert_equal(h['Info']['y2'], + np.array([self._buffer[0][1][1], + self._buffer[1][1][1]], + dtype='f8')) + assert_equal(h['info']['Name'], + np.array([self._buffer[0][3][0], + self._buffer[1][3][0]], + dtype='U2')) + assert_equal(h['info']['Value'], + np.array([self._buffer[0][3][1], + self._buffer[1][3][1]], + dtype='c16')) + + def test_nested2_acessors(self): + """Check reading the nested fields of a nested array (2nd level)""" + h = np.array(self._buffer, dtype=self._descr) + if not self.multiple_rows: + assert_equal(h['Info']['Info2']['value'], + np.array(self._buffer[1][2][1], dtype='c16')) + assert_equal(h['Info']['Info2']['z3'], + np.array(self._buffer[1][2][3], dtype='u4')) + else: + assert_equal(h['Info']['Info2']['value'], + np.array([self._buffer[0][1][2][1], + self._buffer[1][1][2][1]], + dtype='c16')) + assert_equal(h['Info']['Info2']['z3'], + np.array([self._buffer[0][1][2][3], + self._buffer[1][1][2][3]], + dtype='u4')) + + def test_nested1_descriptor(self): + """Check access nested descriptors of a nested array (1st level)""" + h = np.array(self._buffer, dtype=self._descr) + assert_(h.dtype['Info']['value'].name == 'complex128') + assert_(h.dtype['Info']['y2'].name == 'float64') + assert_(h.dtype['info']['Name'].name == 'str256') + assert_(h.dtype['info']['Value'].name == 'complex128') + + def test_nested2_descriptor(self): + """Check access nested descriptors of a nested array (2nd level)""" + h = np.array(self._buffer, dtype=self._descr) + assert_(h.dtype['Info']['Info2']['value'].name == 'void256') + assert_(h.dtype['Info']['Info2']['z3'].name == 'void64') + + +class TestReadValuesNestedSingle(ReadValuesNested): + """Check the values of heterogeneous arrays (nested, single row)""" + _descr = Ndescr + multiple_rows = False + _buffer = NbufferT[0] + +class TestReadValuesNestedMultiple(ReadValuesNested): + """Check the values of heterogeneous arrays (nested, multiple rows)""" + _descr = Ndescr + multiple_rows = True + _buffer = NbufferT + +class TestEmptyField: + def test_assign(self): + a = np.arange(10, dtype=np.float32) + a.dtype = [("int", "<0i4"), ("float", "<2f4")] + assert_(a['int'].shape == (5, 0)) + assert_(a['float'].shape == (5, 2)) + + +class TestMultipleFields: + def _bad_call(self): + ary = np.array([(1, 2, 3, 4), (5, 6, 7, 8)], dtype='i4,f4,i2,c8') + return ary['f0', 'f1'] + + def test_no_tuple(self): + assert_raises(IndexError, self._bad_call) + + def test_return(self): + ary = np.array([(1, 2, 3, 4), (5, 6, 7, 8)], dtype='i4,f4,i2,c8') + res = ary[['f0', 'f2']].tolist() + assert_(res == [(1, 3), (5, 7)]) + + +class TestIsSubDType: + # scalar types can be promoted into dtypes + wrappers = [np.dtype, lambda x: x] + + def test_both_abstract(self): + assert_(np.issubdtype(np.floating, np.inexact)) + assert_(not np.issubdtype(np.inexact, np.floating)) + + def test_same(self): + for cls in (np.float32, np.int32): + for w1, w2 in itertools.product(self.wrappers, repeat=2): + assert_(np.issubdtype(w1(cls), w2(cls))) + + def test_subclass(self): + # note we cannot promote floating to a dtype, as it would turn into a + # concrete type + for w in self.wrappers: + assert_(np.issubdtype(w(np.float32), np.floating)) + assert_(np.issubdtype(w(np.float64), np.floating)) + + def test_subclass_backwards(self): + for w in self.wrappers: + assert_(not np.issubdtype(np.floating, w(np.float32))) + assert_(not np.issubdtype(np.floating, w(np.float64))) + + def test_sibling_class(self): + for w1, w2 in itertools.product(self.wrappers, repeat=2): + assert_(not np.issubdtype(w1(np.float32), w2(np.float64))) + assert_(not np.issubdtype(w1(np.float64), w2(np.float32))) + + def test_nondtype_nonscalartype(self): + # See gh-14619 and gh-9505 which introduced the deprecation to fix + # this. These tests are directly taken from gh-9505 + assert not np.issubdtype(np.float32, 'float64') + assert not np.issubdtype(np.float32, 'f8') + assert not np.issubdtype(np.int32, str) + assert not np.issubdtype(np.int32, 'int64') + assert not np.issubdtype(np.str_, 'void') + # for the following the correct spellings are + # np.integer, np.floating, or np.complexfloating respectively: + assert not np.issubdtype(np.int8, int) # np.int8 is never np.int_ + assert not np.issubdtype(np.float32, float) + assert not np.issubdtype(np.complex64, complex) + assert not np.issubdtype(np.float32, "float") + assert not np.issubdtype(np.float64, "f") + + # Test the same for the correct first datatype and abstract one + # in the case of int, float, complex: + assert np.issubdtype(np.float64, 'float64') + assert np.issubdtype(np.float64, 'f8') + assert np.issubdtype(np.str_, str) + assert np.issubdtype(np.int64, 'int64') + assert np.issubdtype(np.void, 'void') + assert np.issubdtype(np.int8, np.integer) + assert np.issubdtype(np.float32, np.floating) + assert np.issubdtype(np.complex64, np.complexfloating) + assert np.issubdtype(np.float64, "float") + assert np.issubdtype(np.float32, "f") + + +class TestIsDType: + """ + Check correctness of `np.isdtype`. The test considers different argument + configurations: `np.isdtype(dtype, k1)` and `np.isdtype(dtype, (k1, k2))` + with concrete dtypes and dtype groups. + """ + dtype_group_dict = { + "signed integer": sctypes["int"], + "unsigned integer": sctypes["uint"], + "integral": sctypes["int"] + sctypes["uint"], + "real floating": sctypes["float"], + "complex floating": sctypes["complex"], + "numeric": ( + sctypes["int"] + sctypes["uint"] + sctypes["float"] + + sctypes["complex"] + ) + } + + @pytest.mark.parametrize( + "dtype,close_dtype", + [ + (np.int64, np.int32), (np.uint64, np.uint32), + (np.float64, np.float32), (np.complex128, np.complex64) + ] + ) + @pytest.mark.parametrize( + "dtype_group", + [ + None, "signed integer", "unsigned integer", "integral", + "real floating", "complex floating", "numeric" + ] + ) + def test_isdtype(self, dtype, close_dtype, dtype_group): + # First check if same dtypes return `true` and different ones + # give `false` (even if they're close in the dtype hierarchy!) + if dtype_group is None: + assert np.isdtype(dtype, dtype) + assert not np.isdtype(dtype, close_dtype) + assert np.isdtype(dtype, (dtype, close_dtype)) + + # Check that dtype and a dtype group that it belongs to + # return `true`, and `false` otherwise. + elif dtype in self.dtype_group_dict[dtype_group]: + assert np.isdtype(dtype, dtype_group) + assert np.isdtype(dtype, (close_dtype, dtype_group)) + else: + assert not np.isdtype(dtype, dtype_group) + + def test_isdtype_invalid_args(self): + with assert_raises_regex(TypeError, r".*must be a NumPy dtype.*"): + np.isdtype("int64", np.int64) + with assert_raises_regex(TypeError, r".*kind argument must.*"): + np.isdtype(np.int64, 1) + with assert_raises_regex(ValueError, r".*not a known kind name.*"): + np.isdtype(np.int64, "int64") + + def test_sctypes_complete(self): + # issue 26439: int32/intc were masking each other on 32-bit builds + assert np.int32 in sctypes['int'] + assert np.intc in sctypes['int'] + assert np.int64 in sctypes['int'] + assert np.uint32 in sctypes['uint'] + assert np.uintc in sctypes['uint'] + assert np.uint64 in sctypes['uint'] + +class TestSctypeDict: + def test_longdouble(self): + assert_(np._core.sctypeDict['float64'] is not np.longdouble) + assert_(np._core.sctypeDict['complex128'] is not np.clongdouble) + + def test_ulong(self): + assert np._core.sctypeDict['ulong'] is np.ulong + assert np.dtype(np.ulong) is np.dtype("ulong") + assert np.dtype(np.ulong).itemsize == np.dtype(np.long).itemsize + + +@pytest.mark.filterwarnings("ignore:.*maximum_sctype.*:DeprecationWarning") +class TestMaximumSctype: + + # note that parametrizing with sctype['int'] and similar would skip types + # with the same size (gh-11923) + + @pytest.mark.parametrize( + 't', [np.byte, np.short, np.intc, np.long, np.longlong] + ) + def test_int(self, t): + assert_equal(maximum_sctype(t), np._core.sctypes['int'][-1]) + + @pytest.mark.parametrize( + 't', [np.ubyte, np.ushort, np.uintc, np.ulong, np.ulonglong] + ) + def test_uint(self, t): + assert_equal(maximum_sctype(t), np._core.sctypes['uint'][-1]) + + @pytest.mark.parametrize('t', [np.half, np.single, np.double, np.longdouble]) + def test_float(self, t): + assert_equal(maximum_sctype(t), np._core.sctypes['float'][-1]) + + @pytest.mark.parametrize('t', [np.csingle, np.cdouble, np.clongdouble]) + def test_complex(self, t): + assert_equal(maximum_sctype(t), np._core.sctypes['complex'][-1]) + + @pytest.mark.parametrize('t', [np.bool, np.object_, np.str_, np.bytes_, + np.void]) + def test_other(self, t): + assert_equal(maximum_sctype(t), t) + + +class Test_sctype2char: + # This function is old enough that we're really just documenting the quirks + # at this point. + + def test_scalar_type(self): + assert_equal(sctype2char(np.double), 'd') + assert_equal(sctype2char(np.long), 'l') + assert_equal(sctype2char(np.int_), np.array(0).dtype.char) + assert_equal(sctype2char(np.str_), 'U') + assert_equal(sctype2char(np.bytes_), 'S') + + def test_other_type(self): + assert_equal(sctype2char(float), 'd') + assert_equal(sctype2char(list), 'O') + assert_equal(sctype2char(np.ndarray), 'O') + + def test_third_party_scalar_type(self): + from numpy._core._rational_tests import rational + assert_raises(KeyError, sctype2char, rational) + assert_raises(KeyError, sctype2char, rational(1)) + + def test_array_instance(self): + assert_equal(sctype2char(np.array([1.0, 2.0])), 'd') + + def test_abstract_type(self): + assert_raises(KeyError, sctype2char, np.floating) + + def test_non_type(self): + assert_raises(ValueError, sctype2char, 1) + +@pytest.mark.parametrize("rep, expected", [ + (np.int32, True), + (list, False), + (1.1, False), + (str, True), + (np.dtype(np.float64), True), + (np.dtype((np.int16, (3, 4))), True), + (np.dtype([('a', np.int8)]), True), + ]) +def test_issctype(rep, expected): + # ensure proper identification of scalar + # data-types by issctype() + actual = issctype(rep) + assert type(actual) is bool + assert_equal(actual, expected) + + +@pytest.mark.skipif(sys.flags.optimize > 1, + reason="no docstrings present to inspect when PYTHONOPTIMIZE/Py_OptimizeFlag > 1") +@pytest.mark.xfail(IS_PYPY, + reason="PyPy cannot modify tp_doc after PyType_Ready") +class TestDocStrings: + def test_platform_dependent_aliases(self): + if np.int64 is np.int_: + assert_('int64' in np.int_.__doc__) + elif np.int64 is np.longlong: + assert_('int64' in np.longlong.__doc__) + + +class TestScalarTypeNames: + # gh-9799 + + numeric_types = [ + np.byte, np.short, np.intc, np.long, np.longlong, + np.ubyte, np.ushort, np.uintc, np.ulong, np.ulonglong, + np.half, np.single, np.double, np.longdouble, + np.csingle, np.cdouble, np.clongdouble, + ] + + def test_names_are_unique(self): + # none of the above may be aliases for each other + assert len(set(self.numeric_types)) == len(self.numeric_types) + + # names must be unique + names = [t.__name__ for t in self.numeric_types] + assert len(set(names)) == len(names) + + @pytest.mark.parametrize('t', numeric_types) + def test_names_reflect_attributes(self, t): + """ Test that names correspond to where the type is under ``np.`` """ + assert getattr(np, t.__name__) is t + + @pytest.mark.parametrize('t', numeric_types) + def test_names_are_undersood_by_dtype(self, t): + """ Test the dtype constructor maps names back to the type """ + assert np.dtype(t.__name__).type is t + + +class TestScalarTypeOrder: + @pytest.mark.parametrize(('a', 'b'), [ + # signedinteger + (np.byte, np.short), + (np.short, np.intc), + (np.intc, np.long), + (np.long, np.longlong), + # unsignedinteger + (np.ubyte, np.ushort), + (np.ushort, np.uintc), + (np.uintc, np.ulong), + (np.ulong, np.ulonglong), + # floating + (np.half, np.single), + (np.single, np.double), + (np.double, np.longdouble), + # complexfloating + (np.csingle, np.cdouble), + (np.cdouble, np.clongdouble), + # flexible + (np.bytes_, np.str_), + (np.str_, np.void), + # bouncy castles + (np.datetime64, np.timedelta64), + ]) + def test_stable_ordering(self, a: type[np.generic], b: type[np.generic]): + assert np.ScalarType.index(a) <= np.ScalarType.index(b) + + +class TestBoolDefinition: + def test_bool_definition(self): + assert nt.bool is np.bool diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_overrides.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_overrides.py new file mode 100644 index 0000000000000000000000000000000000000000..ebcf2f0ce1121ac31f9db29a3f4c97f2bd504fea --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_overrides.py @@ -0,0 +1,800 @@ +import inspect +import os +import pickle +import sys +import tempfile +from io import StringIO +from unittest import mock + +import pytest + +import numpy as np +from numpy._core.overrides import ( + _get_implementing_args, + array_function_dispatch, + verify_matching_signatures, +) +from numpy.testing import assert_, assert_equal, assert_raises, assert_raises_regex +from numpy.testing.overrides import get_overridable_numpy_array_functions + + +def _return_not_implemented(self, *args, **kwargs): + return NotImplemented + + +# need to define this at the top level to test pickling +@array_function_dispatch(lambda array: (array,)) +def dispatched_one_arg(array): + """Docstring.""" + return 'original' + + +@array_function_dispatch(lambda array1, array2: (array1, array2)) +def dispatched_two_arg(array1, array2): + """Docstring.""" + return 'original' + + +class TestGetImplementingArgs: + + def test_ndarray(self): + array = np.array(1) + + args = _get_implementing_args([array]) + assert_equal(list(args), [array]) + + args = _get_implementing_args([array, array]) + assert_equal(list(args), [array]) + + args = _get_implementing_args([array, 1]) + assert_equal(list(args), [array]) + + args = _get_implementing_args([1, array]) + assert_equal(list(args), [array]) + + def test_ndarray_subclasses(self): + + class OverrideSub(np.ndarray): + __array_function__ = _return_not_implemented + + class NoOverrideSub(np.ndarray): + pass + + array = np.array(1).view(np.ndarray) + override_sub = np.array(1).view(OverrideSub) + no_override_sub = np.array(1).view(NoOverrideSub) + + args = _get_implementing_args([array, override_sub]) + assert_equal(list(args), [override_sub, array]) + + args = _get_implementing_args([array, no_override_sub]) + assert_equal(list(args), [no_override_sub, array]) + + args = _get_implementing_args( + [override_sub, no_override_sub]) + assert_equal(list(args), [override_sub, no_override_sub]) + + def test_ndarray_and_duck_array(self): + + class Other: + __array_function__ = _return_not_implemented + + array = np.array(1) + other = Other() + + args = _get_implementing_args([other, array]) + assert_equal(list(args), [other, array]) + + args = _get_implementing_args([array, other]) + assert_equal(list(args), [array, other]) + + def test_ndarray_subclass_and_duck_array(self): + + class OverrideSub(np.ndarray): + __array_function__ = _return_not_implemented + + class Other: + __array_function__ = _return_not_implemented + + array = np.array(1) + subarray = np.array(1).view(OverrideSub) + other = Other() + + assert_equal(_get_implementing_args([array, subarray, other]), + [subarray, array, other]) + assert_equal(_get_implementing_args([array, other, subarray]), + [subarray, array, other]) + + def test_many_duck_arrays(self): + + class A: + __array_function__ = _return_not_implemented + + class B(A): + __array_function__ = _return_not_implemented + + class C(A): + __array_function__ = _return_not_implemented + + class D: + __array_function__ = _return_not_implemented + + a = A() + b = B() + c = C() + d = D() + + assert_equal(_get_implementing_args([1]), []) + assert_equal(_get_implementing_args([a]), [a]) + assert_equal(_get_implementing_args([a, 1]), [a]) + assert_equal(_get_implementing_args([a, a, a]), [a]) + assert_equal(_get_implementing_args([a, d, a]), [a, d]) + assert_equal(_get_implementing_args([a, b]), [b, a]) + assert_equal(_get_implementing_args([b, a]), [b, a]) + assert_equal(_get_implementing_args([a, b, c]), [b, c, a]) + assert_equal(_get_implementing_args([a, c, b]), [c, b, a]) + + def test_too_many_duck_arrays(self): + namespace = {'__array_function__': _return_not_implemented} + types = [type('A' + str(i), (object,), namespace) for i in range(65)] + relevant_args = [t() for t in types] + + actual = _get_implementing_args(relevant_args[:64]) + assert_equal(actual, relevant_args[:64]) + + with assert_raises_regex(TypeError, 'distinct argument types'): + _get_implementing_args(relevant_args) + + +class TestNDArrayArrayFunction: + + def test_method(self): + + class Other: + __array_function__ = _return_not_implemented + + class NoOverrideSub(np.ndarray): + pass + + class OverrideSub(np.ndarray): + __array_function__ = _return_not_implemented + + array = np.array([1]) + other = Other() + no_override_sub = array.view(NoOverrideSub) + override_sub = array.view(OverrideSub) + + result = array.__array_function__(func=dispatched_two_arg, + types=(np.ndarray,), + args=(array, 1.), kwargs={}) + assert_equal(result, 'original') + + result = array.__array_function__(func=dispatched_two_arg, + types=(np.ndarray, Other), + args=(array, other), kwargs={}) + assert_(result is NotImplemented) + + result = array.__array_function__(func=dispatched_two_arg, + types=(np.ndarray, NoOverrideSub), + args=(array, no_override_sub), + kwargs={}) + assert_equal(result, 'original') + + result = array.__array_function__(func=dispatched_two_arg, + types=(np.ndarray, OverrideSub), + args=(array, override_sub), + kwargs={}) + assert_equal(result, 'original') + + with assert_raises_regex(TypeError, 'no implementation found'): + np.concatenate((array, other)) + + expected = np.concatenate((array, array)) + result = np.concatenate((array, no_override_sub)) + assert_equal(result, expected.view(NoOverrideSub)) + result = np.concatenate((array, override_sub)) + assert_equal(result, expected.view(OverrideSub)) + + def test_no_wrapper(self): + # Regular numpy functions have wrappers, but do not presume + # all functions do (array creation ones do not): check that + # we just call the function in that case. + array = np.array(1) + func = lambda x: x * 2 + result = array.__array_function__(func=func, types=(np.ndarray,), + args=(array,), kwargs={}) + assert_equal(result, array * 2) + + def test_wrong_arguments(self): + # Check our implementation guards against wrong arguments. + a = np.array([1, 2]) + with pytest.raises(TypeError, match="args must be a tuple"): + a.__array_function__(np.reshape, (np.ndarray,), a, (2, 1)) + with pytest.raises(TypeError, match="kwargs must be a dict"): + a.__array_function__(np.reshape, (np.ndarray,), (a,), (2, 1)) + + +class TestArrayFunctionDispatch: + + def test_pickle(self): + for proto in range(2, pickle.HIGHEST_PROTOCOL + 1): + roundtripped = pickle.loads( + pickle.dumps(dispatched_one_arg, protocol=proto)) + assert_(roundtripped is dispatched_one_arg) + + def test_name_and_docstring(self): + assert_equal(dispatched_one_arg.__name__, 'dispatched_one_arg') + if sys.flags.optimize < 2: + assert_equal(dispatched_one_arg.__doc__, 'Docstring.') + + def test_interface(self): + + class MyArray: + def __array_function__(self, func, types, args, kwargs): + return (self, func, types, args, kwargs) + + original = MyArray() + (obj, func, types, args, kwargs) = dispatched_one_arg(original) + assert_(obj is original) + assert_(func is dispatched_one_arg) + assert_equal(set(types), {MyArray}) + # assert_equal uses the overloaded np.iscomplexobj() internally + assert_(args == (original,)) + assert_equal(kwargs, {}) + + def test_not_implemented(self): + + class MyArray: + def __array_function__(self, func, types, args, kwargs): + return NotImplemented + + array = MyArray() + with assert_raises_regex(TypeError, 'no implementation found'): + dispatched_one_arg(array) + + def test_where_dispatch(self): + + class DuckArray: + def __array_function__(self, ufunc, method, *inputs, **kwargs): + return "overridden" + + array = np.array(1) + duck_array = DuckArray() + + result = np.std(array, where=duck_array) + + assert_equal(result, "overridden") + + +class TestVerifyMatchingSignatures: + + def test_verify_matching_signatures(self): + + verify_matching_signatures(lambda x: 0, lambda x: 0) + verify_matching_signatures(lambda x=None: 0, lambda x=None: 0) + verify_matching_signatures(lambda x=1: 0, lambda x=None: 0) + + with assert_raises(RuntimeError): + verify_matching_signatures(lambda a: 0, lambda b: 0) + with assert_raises(RuntimeError): + verify_matching_signatures(lambda x: 0, lambda x=None: 0) + with assert_raises(RuntimeError): + verify_matching_signatures(lambda x=None: 0, lambda y=None: 0) + with assert_raises(RuntimeError): + verify_matching_signatures(lambda x=1: 0, lambda y=1: 0) + + def test_array_function_dispatch(self): + + with assert_raises(RuntimeError): + @array_function_dispatch(lambda x: (x,)) + def f(y): + pass + + # should not raise + @array_function_dispatch(lambda x: (x,), verify=False) + def f(y): + pass + + +def _new_duck_type_and_implements(): + """Create a duck array type and implements functions.""" + HANDLED_FUNCTIONS = {} + + class MyArray: + def __array_function__(self, func, types, args, kwargs): + if func not in HANDLED_FUNCTIONS: + return NotImplemented + if not all(issubclass(t, MyArray) for t in types): + return NotImplemented + return HANDLED_FUNCTIONS[func](*args, **kwargs) + + def implements(numpy_function): + """Register an __array_function__ implementations.""" + def decorator(func): + HANDLED_FUNCTIONS[numpy_function] = func + return func + return decorator + + return (MyArray, implements) + + +class TestArrayFunctionImplementation: + + def test_one_arg(self): + MyArray, implements = _new_duck_type_and_implements() + + @implements(dispatched_one_arg) + def _(array): + return 'myarray' + + assert_equal(dispatched_one_arg(1), 'original') + assert_equal(dispatched_one_arg(MyArray()), 'myarray') + + def test_optional_args(self): + MyArray, implements = _new_duck_type_and_implements() + + @array_function_dispatch(lambda array, option=None: (array,)) + def func_with_option(array, option='default'): + return option + + @implements(func_with_option) + def my_array_func_with_option(array, new_option='myarray'): + return new_option + + # we don't need to implement every option on __array_function__ + # implementations + assert_equal(func_with_option(1), 'default') + assert_equal(func_with_option(1, option='extra'), 'extra') + assert_equal(func_with_option(MyArray()), 'myarray') + with assert_raises(TypeError): + func_with_option(MyArray(), option='extra') + + # but new options on implementations can't be used + result = my_array_func_with_option(MyArray(), new_option='yes') + assert_equal(result, 'yes') + with assert_raises(TypeError): + func_with_option(MyArray(), new_option='no') + + def test_not_implemented(self): + MyArray, implements = _new_duck_type_and_implements() + + @array_function_dispatch(lambda array: (array,), module='my') + def func(array): + return array + + array = np.array(1) + assert_(func(array) is array) + assert_equal(func.__module__, 'my') + + with assert_raises_regex( + TypeError, "no implementation found for 'my.func'"): + func(MyArray()) + + @pytest.mark.parametrize("name", ["concatenate", "mean", "asarray"]) + def test_signature_error_message_simple(self, name): + func = getattr(np, name) + try: + # all of these functions need an argument: + func() + except TypeError as e: + exc = e + + assert exc.args[0].startswith(f"{name}()") + + def test_signature_error_message(self): + # The lambda function will be named "", but the TypeError + # should show the name as "func" + def _dispatcher(): + return () + + @array_function_dispatch(_dispatcher) + def func(): + pass + + try: + func._implementation(bad_arg=3) + except TypeError as e: + expected_exception = e + + try: + func(bad_arg=3) + raise AssertionError("must fail") + except TypeError as exc: + if exc.args[0].startswith("_dispatcher"): + # We replace the qualname currently, but it used `__name__` + # (relevant functions have the same name and qualname anyway) + pytest.skip("Python version is not using __qualname__ for " + "TypeError formatting.") + + assert exc.args == expected_exception.args + + @pytest.mark.parametrize("value", [234, "this func is not replaced"]) + def test_dispatcher_error(self, value): + # If the dispatcher raises an error, we must not attempt to mutate it + error = TypeError(value) + + def dispatcher(): + raise error + + @array_function_dispatch(dispatcher) + def func(): + return 3 + + try: + func() + raise AssertionError("must fail") + except TypeError as exc: + assert exc is error # unmodified exception + + def test_properties(self): + # Check that str and repr are sensible + func = dispatched_two_arg + assert str(func) == str(func._implementation) + repr_no_id = repr(func).split("at ")[0] + repr_no_id_impl = repr(func._implementation).split("at ")[0] + assert repr_no_id == repr_no_id_impl + + @pytest.mark.parametrize("func", [ + lambda x, y: 0, # no like argument + lambda like=None: 0, # not keyword only + lambda *, like=None, a=3: 0, # not last (not that it matters) + ]) + def test_bad_like_sig(self, func): + # We sanity check the signature, and these should fail. + with pytest.raises(RuntimeError): + array_function_dispatch()(func) + + def test_bad_like_passing(self): + # Cover internal sanity check for passing like as first positional arg + def func(*, like=None): + pass + + func_with_like = array_function_dispatch()(func) + with pytest.raises(TypeError): + func_with_like() + with pytest.raises(TypeError): + func_with_like(like=234) + + def test_too_many_args(self): + # Mainly a unit-test to increase coverage + objs = [] + for i in range(80): + class MyArr: + def __array_function__(self, *args, **kwargs): + return NotImplemented + + objs.append(MyArr()) + + def _dispatch(*args): + return args + + @array_function_dispatch(_dispatch) + def func(*args): + pass + + with pytest.raises(TypeError, match="maximum number"): + func(*objs) + + +class TestNDArrayMethods: + + def test_repr(self): + # gh-12162: should still be defined even if __array_function__ doesn't + # implement np.array_repr() + + class MyArray(np.ndarray): + def __array_function__(*args, **kwargs): + return NotImplemented + + array = np.array(1).view(MyArray) + assert_equal(repr(array), 'MyArray(1)') + assert_equal(str(array), '1') + + +class TestNumPyFunctions: + + def test_set_module(self): + assert_equal(np.sum.__module__, 'numpy') + assert_equal(np.char.equal.__module__, 'numpy.char') + assert_equal(np.fft.fft.__module__, 'numpy.fft') + assert_equal(np.linalg.solve.__module__, 'numpy.linalg') + + def test_inspect_sum(self): + signature = inspect.signature(np.sum) + assert_('axis' in signature.parameters) + + def test_override_sum(self): + MyArray, implements = _new_duck_type_and_implements() + + @implements(np.sum) + def _(array): + return 'yes' + + assert_equal(np.sum(MyArray()), 'yes') + + def test_sum_on_mock_array(self): + + # We need a proxy for mocks because __array_function__ is only looked + # up in the class dict + class ArrayProxy: + def __init__(self, value): + self.value = value + + def __array_function__(self, *args, **kwargs): + return self.value.__array_function__(*args, **kwargs) + + def __array__(self, *args, **kwargs): + return self.value.__array__(*args, **kwargs) + + proxy = ArrayProxy(mock.Mock(spec=ArrayProxy)) + proxy.value.__array_function__.return_value = 1 + result = np.sum(proxy) + assert_equal(result, 1) + proxy.value.__array_function__.assert_called_once_with( + np.sum, (ArrayProxy,), (proxy,), {}) + proxy.value.__array__.assert_not_called() + + def test_sum_forwarding_implementation(self): + + class MyArray(np.ndarray): + + def sum(self, axis, out): + return 'summed' + + def __array_function__(self, func, types, args, kwargs): + return super().__array_function__(func, types, args, kwargs) + + # note: the internal implementation of np.sum() calls the .sum() method + array = np.array(1).view(MyArray) + assert_equal(np.sum(array), 'summed') + + +class TestArrayLike: + def _create_MyArray(self): + class MyArray: + def __init__(self, function=None): + self.function = function + + def __array_function__(self, func, types, args, kwargs): + assert func is getattr(np, func.__name__) + try: + my_func = getattr(self, func.__name__) + except AttributeError: + return NotImplemented + return my_func(*args, **kwargs) + + return MyArray + + def _create_MyNoArrayFunctionArray(self): + class MyNoArrayFunctionArray: + def __init__(self, function=None): + self.function = function + + return MyNoArrayFunctionArray + + def _create_MySubclass(self): + class MySubclass(np.ndarray): + def __array_function__(self, func, types, args, kwargs): + result = super().__array_function__(func, types, args, kwargs) + return result.view(self.__class__) + + return MySubclass + + def add_method(self, name, arr_class, enable_value_error=False): + def _definition(*args, **kwargs): + # Check that `like=` isn't propagated downstream + assert 'like' not in kwargs + + if enable_value_error and 'value_error' in kwargs: + raise ValueError + + return arr_class(getattr(arr_class, name)) + setattr(arr_class, name, _definition) + + def func_args(*args, **kwargs): + return args, kwargs + + def test_array_like_not_implemented(self): + MyArray = self._create_MyArray() + self.add_method('array', MyArray) + + ref = MyArray.array() + + with assert_raises_regex(TypeError, 'no implementation found'): + array_like = np.asarray(1, like=ref) + + _array_tests = [ + ('array', *func_args((1,))), + ('asarray', *func_args((1,))), + ('asanyarray', *func_args((1,))), + ('ascontiguousarray', *func_args((2, 3))), + ('asfortranarray', *func_args((2, 3))), + ('require', *func_args((np.arange(6).reshape(2, 3),), + requirements=['A', 'F'])), + ('empty', *func_args((1,))), + ('full', *func_args((1,), 2)), + ('ones', *func_args((1,))), + ('zeros', *func_args((1,))), + ('arange', *func_args(3)), + ('frombuffer', *func_args(b'\x00' * 8, dtype=int)), + ('fromiter', *func_args(range(3), dtype=int)), + ('fromstring', *func_args('1,2', dtype=int, sep=',')), + ('loadtxt', *func_args(lambda: StringIO('0 1\n2 3'))), + ('genfromtxt', *func_args(lambda: StringIO('1,2.1'), + dtype=[('int', 'i8'), ('float', 'f8')], + delimiter=',')), + ] + + def test_nep35_functions_as_array_functions(self,): + all_array_functions = get_overridable_numpy_array_functions() + like_array_functions_subset = { + getattr(np, func_name) for func_name, *_ in self.__class__._array_tests + } + assert like_array_functions_subset.issubset(all_array_functions) + + nep35_python_functions = { + np.eye, np.fromfunction, np.full, np.genfromtxt, + np.identity, np.loadtxt, np.ones, np.require, np.tri, + } + assert nep35_python_functions.issubset(all_array_functions) + + nep35_C_functions = { + np.arange, np.array, np.asanyarray, np.asarray, + np.ascontiguousarray, np.asfortranarray, np.empty, + np.frombuffer, np.fromfile, np.fromiter, np.fromstring, + np.zeros, + } + assert nep35_C_functions.issubset(all_array_functions) + + @pytest.mark.parametrize('function, args, kwargs', _array_tests) + @pytest.mark.parametrize('numpy_ref', [True, False]) + def test_array_like(self, function, args, kwargs, numpy_ref): + MyArray = self._create_MyArray() + self.add_method('array', MyArray) + self.add_method(function, MyArray) + np_func = getattr(np, function) + my_func = getattr(MyArray, function) + + if numpy_ref is True: + ref = np.array(1) + else: + ref = MyArray.array() + + like_args = tuple(a() if callable(a) else a for a in args) + array_like = np_func(*like_args, **kwargs, like=ref) + + if numpy_ref is True: + assert type(array_like) is np.ndarray + + np_args = tuple(a() if callable(a) else a for a in args) + np_arr = np_func(*np_args, **kwargs) + + # Special-case np.empty to ensure values match + if function == "empty": + np_arr.fill(1) + array_like.fill(1) + + assert_equal(array_like, np_arr) + else: + assert type(array_like) is MyArray + assert array_like.function is my_func + + @pytest.mark.parametrize('function, args, kwargs', _array_tests) + @pytest.mark.parametrize('ref', [1, [1], "MyNoArrayFunctionArray"]) + def test_no_array_function_like(self, function, args, kwargs, ref): + MyNoArrayFunctionArray = self._create_MyNoArrayFunctionArray() + self.add_method('array', MyNoArrayFunctionArray) + self.add_method(function, MyNoArrayFunctionArray) + np_func = getattr(np, function) + + # Instantiate ref if it's the MyNoArrayFunctionArray class + if ref == "MyNoArrayFunctionArray": + ref = MyNoArrayFunctionArray.array() + + like_args = tuple(a() if callable(a) else a for a in args) + + with assert_raises_regex(TypeError, + 'The `like` argument must be an array-like that implements'): + np_func(*like_args, **kwargs, like=ref) + + @pytest.mark.parametrize('function, args, kwargs', _array_tests) + def test_subclass(self, function, args, kwargs): + MySubclass = self._create_MySubclass() + ref = np.array(1).view(MySubclass) + np_func = getattr(np, function) + like_args = tuple(a() if callable(a) else a for a in args) + array_like = np_func(*like_args, **kwargs, like=ref) + assert type(array_like) is MySubclass + if np_func is np.empty: + return + np_args = tuple(a() if callable(a) else a for a in args) + np_arr = np_func(*np_args, **kwargs) + assert_equal(array_like.view(np.ndarray), np_arr) + + @pytest.mark.parametrize('numpy_ref', [True, False]) + def test_array_like_fromfile(self, numpy_ref): + MyArray = self._create_MyArray() + self.add_method('array', MyArray) + self.add_method("fromfile", MyArray) + + if numpy_ref is True: + ref = np.array(1) + else: + ref = MyArray.array() + + data = np.random.random(5) + + with tempfile.TemporaryDirectory() as tmpdir: + fname = os.path.join(tmpdir, "testfile") + data.tofile(fname) + + array_like = np.fromfile(fname, like=ref) + if numpy_ref is True: + assert type(array_like) is np.ndarray + np_res = np.fromfile(fname, like=ref) + assert_equal(np_res, data) + assert_equal(array_like, np_res) + else: + assert type(array_like) is MyArray + assert array_like.function is MyArray.fromfile + + def test_exception_handling(self): + MyArray = self._create_MyArray() + self.add_method('array', MyArray, enable_value_error=True) + + ref = MyArray.array() + + with assert_raises(TypeError): + # Raises the error about `value_error` being invalid first + np.array(1, value_error=True, like=ref) + + @pytest.mark.parametrize('function, args, kwargs', _array_tests) + def test_like_as_none(self, function, args, kwargs): + MyArray = self._create_MyArray() + self.add_method('array', MyArray) + self.add_method(function, MyArray) + np_func = getattr(np, function) + + like_args = tuple(a() if callable(a) else a for a in args) + # required for loadtxt and genfromtxt to init w/o error. + like_args_exp = tuple(a() if callable(a) else a for a in args) + + array_like = np_func(*like_args, **kwargs, like=None) + expected = np_func(*like_args_exp, **kwargs) + # Special-case np.empty to ensure values match + if function == "empty": + array_like.fill(1) + expected.fill(1) + assert_equal(array_like, expected) + + +def test_function_like(): + # We provide a `__get__` implementation, make sure it works + assert type(np.mean) is np._core._multiarray_umath._ArrayFunctionDispatcher + + class MyClass: + def __array__(self, dtype=None, copy=None): + # valid argument to mean: + return np.arange(3) + + func1 = staticmethod(np.mean) + func2 = np.mean + func3 = classmethod(np.mean) + + m = MyClass() + assert m.func1([10]) == 10 + assert m.func2() == 1 # mean of the arange + with pytest.raises(TypeError, match="unsupported operand type"): + # Tries to operate on the class + m.func3() + + # Manual binding also works (the above may shortcut): + bound = np.mean.__get__(m, MyClass) + assert bound() == 1 + + bound = np.mean.__get__(None, MyClass) # unbound actually + assert bound([10]) == 10 + + bound = np.mean.__get__(MyClass) # classmethod + with pytest.raises(TypeError, match="unsupported operand type"): + bound() diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_print.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_print.py new file mode 100644 index 0000000000000000000000000000000000000000..95a177b57a7d6ce09fb28ea9ae82dc9f7bba510b --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_print.py @@ -0,0 +1,202 @@ +import sys +from io import StringIO + +import pytest + +import numpy as np +from numpy._core.tests._locales import CommaDecimalPointLocale +from numpy.testing import IS_MUSL, assert_, assert_equal + +_REF = {np.inf: 'inf', -np.inf: '-inf', np.nan: 'nan'} + + +@pytest.mark.parametrize('tp', [np.float32, np.double, np.longdouble]) +def test_float_types(tp): + """ Check formatting. + + This is only for the str function, and only for simple types. + The precision of np.float32 and np.longdouble aren't the same as the + python float precision. + + """ + for x in [0, 1, -1, 1e20]: + assert_equal(str(tp(x)), str(float(x)), + err_msg=f'Failed str formatting for type {tp}') + + if tp(1e16).itemsize > 4: + assert_equal(str(tp(1e16)), str(float('1e16')), + err_msg=f'Failed str formatting for type {tp}') + else: + ref = '1e+16' + assert_equal(str(tp(1e16)), ref, + err_msg=f'Failed str formatting for type {tp}') + + +@pytest.mark.parametrize('tp', [np.float32, np.double, np.longdouble]) +def test_nan_inf_float(tp): + """ Check formatting of nan & inf. + + This is only for the str function, and only for simple types. + The precision of np.float32 and np.longdouble aren't the same as the + python float precision. + + """ + for x in [np.inf, -np.inf, np.nan]: + assert_equal(str(tp(x)), _REF[x], + err_msg=f'Failed str formatting for type {tp}') + + +@pytest.mark.parametrize('tp', [np.complex64, np.cdouble, np.clongdouble]) +def test_complex_types(tp): + """Check formatting of complex types. + + This is only for the str function, and only for simple types. + The precision of np.float32 and np.longdouble aren't the same as the + python float precision. + + """ + for x in [0, 1, -1, 1e20]: + assert_equal(str(tp(x)), str(complex(x)), + err_msg=f'Failed str formatting for type {tp}') + assert_equal(str(tp(x * 1j)), str(complex(x * 1j)), + err_msg=f'Failed str formatting for type {tp}') + assert_equal(str(tp(x + x * 1j)), str(complex(x + x * 1j)), + err_msg=f'Failed str formatting for type {tp}') + + if tp(1e16).itemsize > 8: + assert_equal(str(tp(1e16)), str(complex(1e16)), + err_msg=f'Failed str formatting for type {tp}') + else: + ref = '(1e+16+0j)' + assert_equal(str(tp(1e16)), ref, + err_msg=f'Failed str formatting for type {tp}') + + +@pytest.mark.parametrize('dtype', [np.complex64, np.cdouble, np.clongdouble]) +def test_complex_inf_nan(dtype): + """Check inf/nan formatting of complex types.""" + TESTS = { + complex(np.inf, 0): "(inf+0j)", + complex(0, np.inf): "infj", + complex(-np.inf, 0): "(-inf+0j)", + complex(0, -np.inf): "-infj", + complex(np.inf, 1): "(inf+1j)", + complex(1, np.inf): "(1+infj)", + complex(-np.inf, 1): "(-inf+1j)", + complex(1, -np.inf): "(1-infj)", + complex(np.nan, 0): "(nan+0j)", + complex(0, np.nan): "nanj", + complex(-np.nan, 0): "(nan+0j)", + complex(0, -np.nan): "nanj", + complex(np.nan, 1): "(nan+1j)", + complex(1, np.nan): "(1+nanj)", + complex(-np.nan, 1): "(nan+1j)", + complex(1, -np.nan): "(1+nanj)", + } + for c, s in TESTS.items(): + assert_equal(str(dtype(c)), s) + + +# print tests +def _test_redirected_print(x, tp, ref=None): + file = StringIO() + file_tp = StringIO() + stdout = sys.stdout + try: + sys.stdout = file_tp + print(tp(x)) + sys.stdout = file + if ref: + print(ref) + else: + print(x) + finally: + sys.stdout = stdout + + assert_equal(file.getvalue(), file_tp.getvalue(), + err_msg=f'print failed for type{tp}') + + +@pytest.mark.thread_unsafe(reason="sys.stdout not thread-safe") +@pytest.mark.parametrize('tp', [np.float32, np.double, np.longdouble]) +def test_float_type_print(tp): + """Check formatting when using print """ + for x in [0, 1, -1, 1e20]: + _test_redirected_print(float(x), tp) + + for x in [np.inf, -np.inf, np.nan]: + _test_redirected_print(float(x), tp, _REF[x]) + + if tp(1e16).itemsize > 4: + _test_redirected_print(1e16, tp) + else: + ref = '1e+16' + _test_redirected_print(1e16, tp, ref) + + +@pytest.mark.thread_unsafe(reason="sys.stdout not thread-safe") +@pytest.mark.parametrize('tp', [np.complex64, np.cdouble, np.clongdouble]) +def test_complex_type_print(tp): + """Check formatting when using print """ + # We do not create complex with inf/nan directly because the feature is + # missing in python < 2.6 + for x in [0, 1, -1, 1e20]: + _test_redirected_print(complex(x), tp) + + if tp(1e16).itemsize > 8: + _test_redirected_print(complex(1e16), tp) + else: + ref = '(1e+16+0j)' + _test_redirected_print(complex(1e16), tp, ref) + + _test_redirected_print(complex(np.inf, 1), tp, '(inf+1j)') + _test_redirected_print(complex(-np.inf, 1), tp, '(-inf+1j)') + _test_redirected_print(complex(-np.nan, 1), tp, '(nan+1j)') + + +def test_scalar_format(): + """Test the str.format method with NumPy scalar types""" + tests = [('{0}', True, np.bool), + ('{0}', False, np.bool), + ('{0:d}', 130, np.uint8), + ('{0:d}', 50000, np.uint16), + ('{0:d}', 3000000000, np.uint32), + ('{0:d}', 15000000000000000000, np.uint64), + ('{0:d}', -120, np.int8), + ('{0:d}', -30000, np.int16), + ('{0:d}', -2000000000, np.int32), + ('{0:d}', -7000000000000000000, np.int64), + ('{0:g}', 1.5, np.float16), + ('{0:g}', 1.5, np.float32), + ('{0:g}', 1.5, np.float64), + ('{0:g}', 1.5, np.longdouble), + ('{0:g}', 1.5 + 0.5j, np.complex64), + ('{0:g}', 1.5 + 0.5j, np.complex128), + ('{0:g}', 1.5 + 0.5j, np.clongdouble)] + + for (fmat, val, valtype) in tests: + try: + assert_equal(fmat.format(val), fmat.format(valtype(val)), + f"failed with val {val}, type {valtype}") + except ValueError as e: + assert_(False, + "format raised exception (fmt='%s', val=%s, type=%s, exc='%s')" % + (fmat, repr(val), repr(valtype), str(e))) + + +# +# Locale tests: scalar types formatting should be independent of the locale +# + +class TestCommaDecimalPointLocale(CommaDecimalPointLocale): + + def test_locale_single(self): + assert_equal(str(np.float32(1.2)), str(1.2)) + + def test_locale_double(self): + assert_equal(str(np.double(1.2)), str(1.2)) + + @pytest.mark.skipif(IS_MUSL, + reason="test flaky on musllinux") + def test_locale_longdouble(self): + assert_equal(str(np.longdouble('1.2')), str(1.2)) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_protocols.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_protocols.py new file mode 100644 index 0000000000000000000000000000000000000000..96bb600843dcf6fee4806945fbaf082cf8346203 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_protocols.py @@ -0,0 +1,46 @@ +import warnings + +import pytest + +import numpy as np + + +@pytest.mark.filterwarnings("error") +def test_getattr_warning(): + # issue gh-14735: make sure we clear only getattr errors, and let warnings + # through + class Wrapper: + def __init__(self, array): + self.array = array + + def __len__(self): + return len(self.array) + + def __getitem__(self, item): + return type(self)(self.array[item]) + + def __getattr__(self, name): + if name.startswith("__array_"): + warnings.warn("object got converted", UserWarning, stacklevel=1) + + return getattr(self.array, name) + + def __repr__(self): + return f"" + + array = Wrapper(np.arange(10)) + with pytest.raises(UserWarning, match="object got converted"): + np.asarray(array) + + +def test_array_called(): + class Wrapper: + val = '0' * 100 + + def __array__(self, dtype=None, copy=None): + return np.array([self.val], dtype=dtype, copy=copy) + + wrapped = Wrapper() + arr = np.array(wrapped, dtype=str) + assert arr.dtype == 'U100' + assert arr[0] == Wrapper.val diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_records.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_records.py new file mode 100644 index 0000000000000000000000000000000000000000..7ed6ea7687ff208e3b34025337a8f9e230da43a2 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_records.py @@ -0,0 +1,544 @@ +import collections.abc +import pickle +import textwrap +from io import BytesIO +from os import path +from pathlib import Path + +import pytest + +import numpy as np +from numpy.testing import ( + assert_, + assert_array_almost_equal, + assert_array_equal, + assert_equal, + assert_raises, + temppath, +) + + +class TestFromrecords: + def test_fromrecords(self): + r = np.rec.fromrecords([[456, 'dbe', 1.2], [2, 'de', 1.3]], + names='col1,col2,col3') + assert_equal(r[0].item(), (456, 'dbe', 1.2)) + assert_equal(r['col1'].dtype.kind, 'i') + assert_equal(r['col2'].dtype.kind, 'U') + assert_equal(r['col2'].dtype.itemsize, 12) + assert_equal(r['col3'].dtype.kind, 'f') + + def test_fromrecords_0len(self): + """ Verify fromrecords works with a 0-length input """ + dtype = [('a', float), ('b', float)] + r = np.rec.fromrecords([], dtype=dtype) + assert_equal(r.shape, (0,)) + + def test_fromrecords_2d(self): + data = [ + [(1, 2), (3, 4), (5, 6)], + [(6, 5), (4, 3), (2, 1)] + ] + expected_a = [[1, 3, 5], [6, 4, 2]] + expected_b = [[2, 4, 6], [5, 3, 1]] + + # try with dtype + r1 = np.rec.fromrecords(data, dtype=[('a', int), ('b', int)]) + assert_equal(r1['a'], expected_a) + assert_equal(r1['b'], expected_b) + + # try with names + r2 = np.rec.fromrecords(data, names=['a', 'b']) + assert_equal(r2['a'], expected_a) + assert_equal(r2['b'], expected_b) + + assert_equal(r1, r2) + + def test_method_array(self): + r = np.rec.array( + b'abcdefg' * 100, formats='i2,S3,i4', shape=3, byteorder='big' + ) + assert_equal(r[1].item(), (25444, b'efg', 1633837924)) + + def test_method_array2(self): + r = np.rec.array( + [ + (1, 11, 'a'), (2, 22, 'b'), (3, 33, 'c'), (4, 44, 'd'), + (5, 55, 'ex'), (6, 66, 'f'), (7, 77, 'g') + ], + formats='u1,f4,S1' + ) + assert_equal(r[1].item(), (2, 22.0, b'b')) + + def test_recarray_slices(self): + r = np.rec.array( + [ + (1, 11, 'a'), (2, 22, 'b'), (3, 33, 'c'), (4, 44, 'd'), + (5, 55, 'ex'), (6, 66, 'f'), (7, 77, 'g') + ], + formats='u1,f4,S1' + ) + assert_equal(r[1::2][1].item(), (4, 44.0, b'd')) + + def test_recarray_fromarrays(self): + x1 = np.array([1, 2, 3, 4]) + x2 = np.array(['a', 'dd', 'xyz', '12']) + x3 = np.array([1.1, 2, 3, 4]) + r = np.rec.fromarrays([x1, x2, x3], names='a,b,c') + assert_equal(r[1].item(), (2, 'dd', 2.0)) + x1[1] = 34 + assert_equal(r.a, np.array([1, 2, 3, 4])) + + def test_recarray_fromfile(self): + data_dir = path.join(path.dirname(__file__), 'data') + filename = path.join(data_dir, 'recarray_from_file.fits') + fd = open(filename, 'rb') + fd.seek(2880 * 2) + r1 = np.rec.fromfile(fd, formats='f8,i4,S5', shape=3, byteorder='big') + fd.seek(2880 * 2) + r2 = np.rec.array(fd, formats='f8,i4,S5', shape=3, byteorder='big') + fd.seek(2880 * 2) + bytes_array = BytesIO() + bytes_array.write(fd.read()) + bytes_array.seek(0) + r3 = np.rec.fromfile( + bytes_array, formats='f8,i4,S5', shape=3, byteorder='big' + ) + fd.close() + assert_equal(r1, r2) + assert_equal(r2, r3) + + def test_recarray_from_obj(self): + count = 10 + a = np.zeros(count, dtype='O') + b = np.zeros(count, dtype='f8') + c = np.zeros(count, dtype='f8') + for i in range(len(a)): + a[i] = list(range(1, 10)) + + mine = np.rec.fromarrays([a, b, c], names='date,data1,data2') + for i in range(len(a)): + assert_(mine.date[i] == list(range(1, 10))) + assert_(mine.data1[i] == 0.0) + assert_(mine.data2[i] == 0.0) + + def test_recarray_repr(self): + a = np.array([(1, 0.1), (2, 0.2)], + dtype=[('foo', ' 2) & (a < 6)) + xb = np.where((b > 2) & (b < 6)) + ya = ((a > 2) & (a < 6)) + yb = ((b > 2) & (b < 6)) + assert_array_almost_equal(xa, ya.nonzero()) + assert_array_almost_equal(xb, yb.nonzero()) + assert_(np.all(a[ya] > 0.5)) + assert_(np.all(b[yb] > 0.5)) + + def test_endian_where(self): + # GitHub issue #369 + net = np.zeros(3, dtype='>f4') + net[1] = 0.00458849 + net[2] = 0.605202 + max_net = net.max() + test = np.where(net <= 0., max_net, net) + correct = np.array([0.60520202, 0.00458849, 0.60520202]) + assert_array_almost_equal(test, correct) + + def test_endian_recarray(self): + # Ticket #2185 + dt = np.dtype([ + ('head', '>u4'), + ('data', '>u4', 2), + ]) + buf = np.recarray(1, dtype=dt) + buf[0]['head'] = 1 + buf[0]['data'][:] = [1, 1] + + h = buf[0]['head'] + d = buf[0]['data'][0] + buf[0]['head'] = h + buf[0]['data'][0] = d + assert_(buf[0]['head'] == 1) + + def test_mem_dot(self): + # Ticket #106 + x = np.random.randn(0, 1) + y = np.random.randn(10, 1) + # Dummy array to detect bad memory access: + _z = np.ones(10) + _dummy = np.empty((0, 10)) + z = as_strided(_z, _dummy.shape, _dummy.strides) + np.dot(x, np.transpose(y), out=z) + assert_equal(_z, np.ones(10)) + # Do the same for the built-in dot: + np._core.multiarray.dot(x, np.transpose(y), out=z) + assert_equal(_z, np.ones(10)) + + def test_arange_endian(self): + # Ticket #111 + ref = np.arange(10) + x = np.arange(10, dtype=' 1 and x['two'] > 2) + + def test_method_args(self): + # Make sure methods and functions have same default axis + # keyword and arguments + funcs1 = ['argmax', 'argmin', 'sum', 'any', 'all', 'cumsum', + 'cumprod', 'prod', 'std', 'var', 'mean', + 'round', 'min', 'max', 'argsort', 'sort'] + funcs2 = ['compress', 'take', 'repeat'] + + for func in funcs1: + arr = np.random.rand(8, 7) + arr2 = arr.copy() + res1 = getattr(arr, func)() + res2 = getattr(np, func)(arr2) + if res1 is None: + res1 = arr + + if res1.dtype.kind in 'uib': + assert_((res1 == res2).all(), func) + else: + assert_(abs(res1 - res2).max() < 1e-8, func) + + for func in funcs2: + arr1 = np.random.rand(8, 7) + arr2 = np.random.rand(8, 7) + res1 = None + if func == 'compress': + arr1 = arr1.ravel() + res1 = getattr(arr2, func)(arr1) + else: + arr2 = (15 * arr2).astype(int).ravel() + if res1 is None: + res1 = getattr(arr1, func)(arr2) + res2 = getattr(np, func)(arr1, arr2) + assert_(abs(res1 - res2).max() < 1e-8, func) + + def test_mem_lexsort_strings(self): + # Ticket #298 + lst = ['abc', 'cde', 'fgh'] + np.lexsort((lst,)) + + def test_fancy_index(self): + # Ticket #302 + x = np.array([1, 2])[np.array([0])] + assert_equal(x.shape, (1,)) + + def test_recarray_copy(self): + # Ticket #312 + dt = [('x', np.int16), ('y', np.float64)] + ra = np.array([(1, 2.3)], dtype=dt) + rb = np.rec.array(ra, dtype=dt) + rb['x'] = 2. + assert_(ra['x'] != rb['x']) + + def test_rec_fromarray(self): + # Ticket #322 + x1 = np.array([[1, 2], [3, 4], [5, 6]]) + x2 = np.array(['a', 'dd', 'xyz']) + x3 = np.array([1.1, 2, 3]) + np.rec.fromarrays([x1, x2, x3], formats="(2,)i4,S3,f8") + + def test_object_array_assign(self): + x = np.empty((2, 2), object) + x.flat[2] = (1, 2, 3) + assert_equal(x.flat[2], (1, 2, 3)) + + def test_ndmin_float64(self): + # Ticket #324 + x = np.array([1, 2, 3], dtype=np.float64) + assert_equal(np.array(x, dtype=np.float32, ndmin=2).ndim, 2) + assert_equal(np.array(x, dtype=np.float64, ndmin=2).ndim, 2) + + def test_ndmin_order(self): + # Issue #465 and related checks + assert_(np.array([1, 2], order='C', ndmin=3).flags.c_contiguous) + assert_(np.array([1, 2], order='F', ndmin=3).flags.f_contiguous) + assert_(np.array(np.ones((2, 2), order='F'), ndmin=3).flags.f_contiguous) + assert_(np.array(np.ones((2, 2), order='C'), ndmin=3).flags.c_contiguous) + + def test_mem_axis_minimization(self): + # Ticket #327 + data = np.arange(5) + data = np.add.outer(data, data) + + def test_mem_float_imag(self): + # Ticket #330 + np.float64(1.0).imag + + def test_dtype_tuple(self): + # Ticket #334 + assert_(np.dtype('i4') == np.dtype(('i4', ()))) + + def test_dtype_posttuple(self): + # Ticket #335 + np.dtype([('col1', '()i4')]) + + def test_numeric_carray_compare(self): + # Ticket #341 + assert_equal(np.array(['X'], 'c'), b'X') + + def test_string_array_size(self): + # Ticket #342 + assert_raises(ValueError, + np.array, [['X'], ['X', 'X', 'X']], '|S1') + + def test_dtype_repr(self): + # Ticket #344 + dt1 = np.dtype(('uint32', 2)) + dt2 = np.dtype(('uint32', (2,))) + assert_equal(dt1.__repr__(), dt2.__repr__()) + + def test_reshape_order(self): + # Make sure reshape order works. + a = np.arange(6).reshape(2, 3, order='F') + assert_equal(a, [[0, 2, 4], [1, 3, 5]]) + a = np.array([[1, 2], [3, 4], [5, 6], [7, 8]]) + b = a[:, 1] + assert_equal(b.reshape(2, 2, order='F'), [[2, 6], [4, 8]]) + + def test_reshape_zero_strides(self): + # Issue #380, test reshaping of zero strided arrays + a = np.ones(1) + a = as_strided(a, shape=(5,), strides=(0,)) + assert_(a.reshape(5, 1).strides[0] == 0) + + def test_reshape_zero_size(self): + # GitHub Issue #2700, setting shape failed for 0-sized arrays + a = np.ones((0, 2)) + a.shape = (-1, 2) + + def test_reshape_trailing_ones_strides(self): + # GitHub issue gh-2949, bad strides for trailing ones of new shape + a = np.zeros(12, dtype=np.int32)[::2] # not contiguous + strides_c = (16, 8, 8, 8) + strides_f = (8, 24, 48, 48) + assert_equal(a.reshape(3, 2, 1, 1).strides, strides_c) + assert_equal(a.reshape(3, 2, 1, 1, order='F').strides, strides_f) + assert_equal(np.array(0, dtype=np.int32).reshape(1, 1).strides, (4, 4)) + + def test_repeat_discont(self): + # Ticket #352 + a = np.arange(12).reshape(4, 3)[:, 2] + assert_equal(a.repeat(3), [2, 2, 2, 5, 5, 5, 8, 8, 8, 11, 11, 11]) + + def test_array_index(self): + # Make sure optimization is not called in this case. + a = np.array([1, 2, 3]) + a2 = np.array([[1, 2, 3]]) + assert_equal(a[np.where(a == 3)], a2[np.where(a2 == 3)]) + + def test_object_argmax(self): + a = np.array([1, 2, 3], dtype=object) + assert_(a.argmax() == 2) + + def test_recarray_fields(self): + # Ticket #372 + dt0 = np.dtype([('f0', 'i4'), ('f1', 'i4')]) + dt1 = np.dtype([('f0', 'i8'), ('f1', 'i8')]) + for a in [np.array([(1, 2), (3, 4)], "i4,i4"), + np.rec.array([(1, 2), (3, 4)], "i4,i4"), + np.rec.array([(1, 2), (3, 4)]), + np.rec.fromarrays([(1, 2), (3, 4)], "i4,i4"), + np.rec.fromarrays([(1, 2), (3, 4)])]: + assert_(a.dtype in [dt0, dt1]) + + def test_random_shuffle(self): + # Ticket #374 + a = np.arange(5).reshape((5, 1)) + b = a.copy() + np.random.shuffle(b) + assert_equal(np.sort(b, axis=0), a) + + def test_refcount_vdot(self): + # Changeset #3443 + _assert_valid_refcount(np.vdot) + + def test_startswith(self): + ca = np.char.array(['Hi', 'There']) + assert_equal(ca.startswith('H'), [True, False]) + + def test_noncommutative_reduce_accumulate(self): + # Ticket #413 + tosubtract = np.arange(5) + todivide = np.array([2.0, 0.5, 0.25]) + assert_equal(np.subtract.reduce(tosubtract), -10) + assert_equal(np.divide.reduce(todivide), 16.0) + assert_array_equal(np.subtract.accumulate(tosubtract), + np.array([0, -1, -3, -6, -10])) + assert_array_equal(np.divide.accumulate(todivide), + np.array([2., 4., 16.])) + + def test_convolve_empty(self): + # Convolve should raise an error for empty input array. + assert_raises(ValueError, np.convolve, [], [1]) + assert_raises(ValueError, np.convolve, [1], []) + + def test_multidim_byteswap(self): + # Ticket #449 + r = np.array([(1, (0, 1, 2))], dtype="i2,3i2") + assert_array_equal(r.byteswap(), + np.array([(256, (0, 256, 512))], r.dtype)) + + def test_string_NULL(self): + # Changeset 3557 + assert_equal(np.array("a\x00\x0b\x0c\x00").item(), + 'a\x00\x0b\x0c') + + def test_junk_in_string_fields_of_recarray(self): + # Ticket #483 + r = np.array([[b'abc']], dtype=[('var1', '|S20')]) + assert_(asbytes(r['var1'][0][0]) == b'abc') + + def test_take_output(self): + # Ensure that 'take' honours output parameter. + x = np.arange(12).reshape((3, 4)) + a = np.take(x, [0, 2], axis=1) + b = np.zeros_like(a) + np.take(x, [0, 2], axis=1, out=b) + assert_array_equal(a, b) + + def test_take_object_fail(self): + # Issue gh-3001 + d = 123. + a = np.array([d, 1], dtype=object) + if HAS_REFCOUNT: + ref_d = sys.getrefcount(d) + try: + a.take([0, 100]) + except IndexError: + pass + if HAS_REFCOUNT: + assert_(ref_d == sys.getrefcount(d)) + + def test_array_str_64bit(self): + # Ticket #501 + s = np.array([1, np.nan], dtype=np.float64) + with np.errstate(all='raise'): + np.array_str(s) # Should succeed + + def test_frompyfunc_endian(self): + # Ticket #503 + from math import radians + uradians = np.frompyfunc(radians, 1, 1) + big_endian = np.array([83.4, 83.5], dtype='>f8') + little_endian = np.array([83.4, 83.5], dtype=' object + # casting succeeds + def rs(): + x = np.ones([484, 286]) + y = np.zeros([484, 286]) + x |= y + + assert_raises(TypeError, rs) + + def test_unicode_scalar(self): + # Ticket #600 + x = np.array(["DROND", "DROND1"], dtype="U6") + el = x[1] + for proto in range(2, pickle.HIGHEST_PROTOCOL + 1): + new = pickle.loads(pickle.dumps(el, protocol=proto)) + assert_equal(new, el) + + def test_arange_non_native_dtype(self): + # Ticket #616 + for T in ('>f4', ' 0)] = v + + assert_raises(IndexError, ia, x, s, np.zeros(9, dtype=float)) + assert_raises(IndexError, ia, x, s, np.zeros(11, dtype=float)) + + # Old special case (different code path): + assert_raises(IndexError, ia, x.flat, s, np.zeros(9, dtype=float)) + assert_raises(IndexError, ia, x.flat, s, np.zeros(11, dtype=float)) + + def test_mem_scalar_indexing(self): + # Ticket #603 + x = np.array([0], dtype=float) + index = np.array(0, dtype=np.int32) + x[index] + + def test_binary_repr_0_width(self): + assert_equal(np.binary_repr(0, width=3), '000') + + def test_fromstring(self): + assert_equal(np.fromstring("12:09:09", dtype=int, sep=":"), + [12, 9, 9]) + + def test_searchsorted_variable_length(self): + x = np.array(['a', 'aa', 'b']) + y = np.array(['d', 'e']) + assert_equal(x.searchsorted(y), [3, 3]) + + def test_string_argsort_with_zeros(self): + # Check argsort for strings containing zeros. + x = np.frombuffer(b"\x00\x02\x00\x01", dtype="|S2") + assert_array_equal(x.argsort(kind='m'), np.array([1, 0])) + assert_array_equal(x.argsort(kind='q'), np.array([1, 0])) + + def test_string_sort_with_zeros(self): + # Check sort for strings containing zeros. + x = np.frombuffer(b"\x00\x02\x00\x01", dtype="|S2") + y = np.frombuffer(b"\x00\x01\x00\x02", dtype="|S2") + assert_array_equal(np.sort(x, kind="q"), y) + + def test_copy_detection_zero_dim(self): + # Ticket #658 + np.indices((0, 3, 4)).T.reshape(-1, 3) + + def test_flat_byteorder(self): + # Ticket #657 + x = np.arange(10) + assert_array_equal(x.astype('>i4'), x.astype('i4').flat[:], x.astype('i4')): + x = np.array([-1, 0, 1], dtype=dt) + assert_equal(x.flat[0].dtype, x[0].dtype) + + def test_copy_detection_corner_case(self): + # Ticket #658 + np.indices((0, 3, 4)).T.reshape(-1, 3) + + def test_object_array_refcounting(self): + # Ticket #633 + if not hasattr(sys, 'getrefcount'): + return + + # NB. this is probably CPython-specific + + cnt = sys.getrefcount + + a = object() + b = object() + c = object() + + cnt0_a = cnt(a) + cnt0_b = cnt(b) + cnt0_c = cnt(c) + + # -- 0d -> 1-d broadcast slice assignment + + arr = np.zeros(5, dtype=np.object_) + + arr[:] = a + assert_equal(cnt(a), cnt0_a + 5) + + arr[:] = b + assert_equal(cnt(a), cnt0_a) + assert_equal(cnt(b), cnt0_b + 5) + + arr[:2] = c + assert_equal(cnt(b), cnt0_b + 3) + assert_equal(cnt(c), cnt0_c + 2) + + del arr + + # -- 1-d -> 2-d broadcast slice assignment + + arr = np.zeros((5, 2), dtype=np.object_) + arr0 = np.zeros(2, dtype=np.object_) + + arr0[0] = a + assert_(cnt(a) == cnt0_a + 1) + arr0[1] = b + assert_(cnt(b) == cnt0_b + 1) + + arr[:, :] = arr0 + assert_(cnt(a) == cnt0_a + 6) + assert_(cnt(b) == cnt0_b + 6) + + arr[:, 0] = None + assert_(cnt(a) == cnt0_a + 1) + + del arr, arr0 + + # -- 2-d copying + flattening + + arr = np.zeros((5, 2), dtype=np.object_) + + arr[:, 0] = a + arr[:, 1] = b + assert_(cnt(a) == cnt0_a + 5) + assert_(cnt(b) == cnt0_b + 5) + + arr2 = arr.copy() + assert_(cnt(a) == cnt0_a + 10) + assert_(cnt(b) == cnt0_b + 10) + + arr2 = arr[:, 0].copy() + assert_(cnt(a) == cnt0_a + 10) + assert_(cnt(b) == cnt0_b + 5) + + arr2 = arr.flatten() + assert_(cnt(a) == cnt0_a + 10) + assert_(cnt(b) == cnt0_b + 10) + + del arr, arr2 + + # -- concatenate, repeat, take, choose + + arr1 = np.zeros((5, 1), dtype=np.object_) + arr2 = np.zeros((5, 1), dtype=np.object_) + + arr1[...] = a + arr2[...] = b + assert_(cnt(a) == cnt0_a + 5) + assert_(cnt(b) == cnt0_b + 5) + + tmp = np.concatenate((arr1, arr2)) + assert_(cnt(a) == cnt0_a + 5 + 5) + assert_(cnt(b) == cnt0_b + 5 + 5) + + tmp = arr1.repeat(3, axis=0) + assert_(cnt(a) == cnt0_a + 5 + 3 * 5) + + tmp = arr1.take([1, 2, 3], axis=0) + assert_(cnt(a) == cnt0_a + 5 + 3) + + x = np.array([[0], [1], [0], [1], [1]], int) + tmp = x.choose(arr1, arr2) + assert_(cnt(a) == cnt0_a + 5 + 2) + assert_(cnt(b) == cnt0_b + 5 + 3) + + def test_mem_custom_float_to_array(self): + # Ticket 702 + class MyFloat: + def __float__(self): + return 1.0 + + tmp = np.atleast_1d([MyFloat()]) + tmp.astype(float) # Should succeed + + def test_object_array_refcount_self_assign(self): + # Ticket #711 + class VictimObject: + deleted = False + + def __del__(self): + self.deleted = True + + d = VictimObject() + arr = np.zeros(5, dtype=np.object_) + arr[:] = d + del d + arr[:] = arr # refcount of 'd' might hit zero here + assert_(not arr[0].deleted) + arr[:] = arr # trying to induce a segfault by doing it again... + assert_(not arr[0].deleted) + + def test_mem_fromiter_invalid_dtype_string(self): + x = [1, 2, 3] + assert_raises(ValueError, + np.fromiter, list(x), dtype='S') + + def test_reduce_big_object_array(self): + # Ticket #713 + oldsize = np.setbufsize(10 * 16) + a = np.array([None] * 161, object) + assert_(not np.any(a)) + np.setbufsize(oldsize) + + def test_mem_0d_array_index(self): + # Ticket #714 + np.zeros(10)[np.array(0)] + + def test_nonnative_endian_fill(self): + # Non-native endian arrays were incorrectly filled with scalars + # before r5034. + if sys.byteorder == 'little': + dtype = np.dtype('>i4') + else: + dtype = np.dtype('data contains non-zero floats + x = np.array([123456789e199], dtype=np.float64) + if IS_PYPY: + x.resize((m, 0), refcheck=False) + else: + x.resize((m, 0)) + y = np.array([123456789e199], dtype=np.float64) + if IS_PYPY: + y.resize((0, n), refcheck=False) + else: + y.resize((0, n)) + + # `dot` should just return zero (m, n) matrix + z = np.dot(x, y) + assert_(np.all(z == 0)) + assert_(z.shape == (m, n)) + + def test_zeros(self): + # Regression test for #1061. + # Set a size which cannot fit into a 64 bits signed integer + sz = 2 ** 64 + with assert_raises_regex(ValueError, + 'Maximum allowed dimension exceeded'): + np.empty(sz) + + def test_huge_arange(self): + # Regression test for #1062. + # Set a size which cannot fit into a 64 bits signed integer + sz = 2 ** 64 + with assert_raises_regex(ValueError, + 'Maximum allowed size exceeded'): + np.arange(sz) + assert_(np.size == sz) + + def test_fromiter_bytes(self): + # Ticket #1058 + a = np.fromiter(list(range(10)), dtype='b') + b = np.fromiter(list(range(10)), dtype='B') + assert_(np.all(a == np.array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]))) + assert_(np.all(b == np.array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]))) + + def test_array_from_sequence_scalar_array(self): + # Ticket #1078: segfaults when creating an array with a sequence of + # 0d arrays. + a = np.array((np.ones(2), np.array(2)), dtype=object) + assert_equal(a.shape, (2,)) + assert_equal(a.dtype, np.dtype(object)) + assert_equal(a[0], np.ones(2)) + assert_equal(a[1], np.array(2)) + + a = np.array(((1,), np.array(1)), dtype=object) + assert_equal(a.shape, (2,)) + assert_equal(a.dtype, np.dtype(object)) + assert_equal(a[0], (1,)) + assert_equal(a[1], np.array(1)) + + def test_array_from_sequence_scalar_array2(self): + # Ticket #1081: weird array with strange input... + t = np.array([np.array([]), np.array(0, object)], dtype=object) + assert_equal(t.shape, (2,)) + assert_equal(t.dtype, np.dtype(object)) + + def test_array_too_big(self): + # Ticket #1080. + assert_raises(ValueError, np.zeros, [975] * 7, np.int8) + assert_raises(ValueError, np.zeros, [26244] * 5, np.int8) + + def test_dtype_keyerrors_(self): + # Ticket #1106. + dt = np.dtype([('f1', np.uint)]) + assert_raises(KeyError, dt.__getitem__, "f2") + assert_raises(IndexError, dt.__getitem__, 1) + assert_raises(TypeError, dt.__getitem__, 0.0) + + def test_lexsort_buffer_length(self): + # Ticket #1217, don't segfault. + a = np.ones(100, dtype=np.int8) + b = np.ones(100, dtype=np.int32) + i = np.lexsort((a[::-1], b)) + assert_equal(i, np.arange(100, dtype=int)) + + def test_object_array_to_fixed_string(self): + # Ticket #1235. + a = np.array(['abcdefgh', 'ijklmnop'], dtype=np.object_) + b = np.array(a, dtype=(np.str_, 8)) + assert_equal(a, b) + c = np.array(a, dtype=(np.str_, 5)) + assert_equal(c, np.array(['abcde', 'ijklm'])) + d = np.array(a, dtype=(np.str_, 12)) + assert_equal(a, d) + e = np.empty((2, ), dtype=(np.str_, 8)) + e[:] = a[:] + assert_equal(a, e) + + def test_unicode_to_string_cast(self): + # Ticket #1240. + a = np.array([['abc', '\u03a3'], + ['asdf', 'erw']], + dtype='U') + assert_raises(UnicodeEncodeError, np.array, a, 'S4') + + def test_unicode_to_string_cast_error(self): + # gh-15790 + a = np.array(['\x80'] * 129, dtype='U3') + assert_raises(UnicodeEncodeError, np.array, a, 'S') + b = a.reshape(3, 43)[:-1, :-1] + assert_raises(UnicodeEncodeError, np.array, b, 'S') + + def test_mixed_string_byte_array_creation(self): + a = np.array(['1234', b'123']) + assert_(a.itemsize == 16) + a = np.array([b'123', '1234']) + assert_(a.itemsize == 16) + a = np.array(['1234', b'123', '12345']) + assert_(a.itemsize == 20) + a = np.array([b'123', '1234', b'12345']) + assert_(a.itemsize == 20) + a = np.array([b'123', '1234', b'1234']) + assert_(a.itemsize == 16) + + def test_misaligned_objects_segfault(self): + # Ticket #1198 and #1267 + a1 = np.zeros((10,), dtype='O,c') + a2 = np.array(['a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j'], 'S10') + a1['f0'] = a2 + repr(a1) + np.argmax(a1['f0']) + a1['f0'][1] = "FOO" + a1['f0'] = "FOO" + np.array(a1['f0'], dtype='S') + np.nonzero(a1['f0']) + a1.sort() + copy.deepcopy(a1) + + def test_misaligned_scalars_segfault(self): + # Ticket #1267 + s1 = np.array(('a', 'Foo'), dtype='c,O') + s2 = np.array(('b', 'Bar'), dtype='c,O') + s1['f1'] = s2['f1'] + s1['f1'] = 'Baz' + + def test_misaligned_dot_product_objects(self): + # Ticket #1267 + # This didn't require a fix, but it's worth testing anyway, because + # it may fail if .dot stops enforcing the arrays to be BEHAVED + a = np.array([[(1, 'a'), (0, 'a')], [(0, 'a'), (1, 'a')]], dtype='O,c') + b = np.array([[(4, 'a'), (1, 'a')], [(2, 'a'), (2, 'a')]], dtype='O,c') + np.dot(a['f0'], b['f0']) + + def test_byteswap_complex_scalar(self): + # Ticket #1259 and gh-441 + for dtype in [np.dtype('<' + t) for t in np.typecodes['Complex']]: + z = np.array([2.2 - 1.1j], dtype) + x = z[0] # always native-endian + y = x.byteswap() + if x.dtype.byteorder == z.dtype.byteorder: + # little-endian machine + assert_equal(x, np.frombuffer(y.tobytes(), dtype=dtype.newbyteorder())) + else: + # big-endian machine + assert_equal(x, np.frombuffer(y.tobytes(), dtype=dtype)) + # double check real and imaginary parts: + assert_equal(x.real, y.real.byteswap()) + assert_equal(x.imag, y.imag.byteswap()) + + def test_structured_arrays_with_objects1(self): + # Ticket #1299 + stra = 'aaaa' + strb = 'bbbb' + x = np.array([[(0, stra), (1, strb)]], 'i8,O') + x[x.nonzero()] = x.ravel()[:1] + assert_(x[0, 1] == x[0, 0]) + + @pytest.mark.skipif( + sys.version_info >= (3, 12), + reason="Python 3.12 has immortal refcounts, this test no longer works." + ) + @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") + def test_structured_arrays_with_objects2(self): + # Ticket #1299 second test + stra = 'aaaa' + strb = 'bbbb' + numb = sys.getrefcount(strb) + numa = sys.getrefcount(stra) + x = np.array([[(0, stra), (1, strb)]], 'i8,O') + x[x.nonzero()] = x.ravel()[:1] + assert_(sys.getrefcount(strb) == numb) + assert_(sys.getrefcount(stra) == numa + 2) + + def test_duplicate_title_and_name(self): + # Ticket #1254 + dtspec = [(('a', 'a'), 'i'), ('b', 'i')] + assert_raises(ValueError, np.dtype, dtspec) + + def test_signed_integer_division_overflow(self): + # Ticket #1317. + def test_type(t): + min = np.array([np.iinfo(t).min]) + min //= -1 + + with np.errstate(over="ignore"): + for t in (np.int8, np.int16, np.int32, np.int64, int): + test_type(t) + + def test_buffer_hashlib(self): + from hashlib import sha256 + + x = np.array([1, 2, 3], dtype=np.dtype('c') + + def test_log1p_compiler_shenanigans(self): + # Check if log1p is behaving on 32 bit intel systems. + assert_(np.isfinite(np.log1p(np.exp2(-53)))) + + def test_fromiter_comparison(self): + a = np.fromiter(list(range(10)), dtype='b') + b = np.fromiter(list(range(10)), dtype='B') + assert_(np.all(a == np.array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]))) + assert_(np.all(b == np.array([0, 1, 2, 3, 4, 5, 6, 7, 8, 9]))) + + def test_fromstring_crash(self): + with assert_raises(ValueError): + np.fromstring(b'aa, aa, 1.0', sep=',') + + def test_ticket_1539(self): + dtypes = [x for x in np._core.sctypeDict.values() + if (issubclass(x, np.number) + and not issubclass(x, np.timedelta64))] + a = np.array([], np.bool) # not x[0] because it is unordered + failures = [] + + for x in dtypes: + b = a.astype(x) + for y in dtypes: + c = a.astype(y) + try: + d = np.dot(b, c) + except TypeError: + failures.append((x, y)) + else: + if d != 0: + failures.append((x, y)) + if failures: + raise AssertionError(f"Failures: {failures!r}") + + def test_ticket_1538(self): + x = np.finfo(np.float32) + for name in ('eps', 'epsneg', 'max', 'min', 'resolution', 'tiny'): + assert_equal(type(getattr(x, name)), np.float32, + err_msg=name) + + def test_ticket_1434(self): + # Check that the out= argument in var and std has an effect + data = np.array(((1, 2, 3), (4, 5, 6), (7, 8, 9))) + out = np.zeros((3,)) + + ret = data.var(axis=1, out=out) + assert_(ret is out) + assert_array_equal(ret, data.var(axis=1)) + + ret = data.std(axis=1, out=out) + assert_(ret is out) + assert_array_equal(ret, data.std(axis=1)) + + def test_complex_nan_maximum(self): + cnan = complex(0, np.nan) + assert_equal(np.maximum(1, cnan), cnan) + + def test_subclass_int_tuple_assignment(self): + # ticket #1563 + class Subclass(np.ndarray): + def __new__(cls, i): + return np.ones((i,)).view(cls) + + x = Subclass(5) + x[(0,)] = 2 # shouldn't raise an exception + assert_equal(x[0], 2) + + def test_ufunc_no_unnecessary_views(self): + # ticket #1548 + class Subclass(np.ndarray): + pass + x = np.array([1, 2, 3]).view(Subclass) + y = np.add(x, x, x) + assert_equal(id(x), id(y)) + + @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") + def test_take_refcount(self): + # ticket #939 + a = np.arange(16, dtype=float) + a.shape = (4, 4) + lut = np.ones((5 + 3, 4), float) + rgba = np.empty(shape=a.shape + (4,), dtype=lut.dtype) + c1 = sys.getrefcount(rgba) + try: + lut.take(a, axis=0, mode='clip', out=rgba) + except TypeError: + pass + c2 = sys.getrefcount(rgba) + assert_equal(c1, c2) + + def test_fromfile_tofile_seeks(self): + # tofile/fromfile used to get (#1610) the Python file handle out of sync + with tempfile.NamedTemporaryFile() as f: + f.write(np.arange(255, dtype='u1').tobytes()) + + f.seek(20) + ret = np.fromfile(f, count=4, dtype='u1') + assert_equal(ret, np.array([20, 21, 22, 23], dtype='u1')) + assert_equal(f.tell(), 24) + + f.seek(40) + np.array([1, 2, 3], dtype='u1').tofile(f) + assert_equal(f.tell(), 43) + + f.seek(40) + data = f.read(3) + assert_equal(data, b"\x01\x02\x03") + + f.seek(80) + f.read(4) + data = np.fromfile(f, dtype='u1', count=4) + assert_equal(data, np.array([84, 85, 86, 87], dtype='u1')) + + def test_complex_scalar_warning(self): + for tp in [np.csingle, np.cdouble, np.clongdouble]: + x = tp(1 + 2j) + pytest.warns(ComplexWarning, float, x) + with warnings.catch_warnings(): + warnings.simplefilter('ignore', ComplexWarning) + assert_equal(float(x), float(x.real)) + + def test_complex_scalar_complex_cast(self): + for tp in [np.csingle, np.cdouble, np.clongdouble]: + x = tp(1 + 2j) + assert_equal(complex(x), 1 + 2j) + + def test_complex_boolean_cast(self): + # Ticket #2218 + for tp in [np.csingle, np.cdouble, np.clongdouble]: + x = np.array([0, 0 + 0.5j, 0.5 + 0j], dtype=tp) + assert_equal(x.astype(bool), np.array([0, 1, 1], dtype=bool)) + assert_(np.any(x)) + assert_(np.all(x[1:])) + + def test_uint_int_conversion(self): + x = 2**64 - 1 + assert_equal(int(np.uint64(x)), x) + + def test_duplicate_field_names_assign(self): + ra = np.fromiter(((i * 3, i * 2) for i in range(10)), dtype='i8,f8') + ra.dtype.names = ('f1', 'f2') + repr(ra) # should not cause a segmentation fault + assert_raises(ValueError, setattr, ra.dtype, 'names', ('f1', 'f1')) + + def test_eq_string_and_object_array(self): + # From e-mail thread "__eq__ with str and object" (Keith Goodman) + a1 = np.array(['a', 'b'], dtype=object) + a2 = np.array(['a', 'c']) + assert_array_equal(a1 == a2, [True, False]) + assert_array_equal(a2 == a1, [True, False]) + + def test_nonzero_byteswap(self): + a = np.array([0x80000000, 0x00000080, 0], dtype=np.uint32) + a = a.view(np.float32) + assert_equal(a.nonzero()[0], [1]) + a = a.byteswap() + a = a.view(a.dtype.newbyteorder()) + assert_equal(a.nonzero()[0], [1]) # [0] if nonzero() ignores swap + + def test_empty_mul(self): + a = np.array([1.]) + a[1:1] *= 2 + assert_equal(a, [1.]) + + def test_array_side_effect(self): + # The second use of itemsize was throwing an exception because in + # ctors.c, discover_itemsize was calling PyObject_Length without + # checking the return code. This failed to get the length of the + # number 2, and the exception hung around until something checked + # PyErr_Occurred() and returned an error. + assert_equal(np.dtype('S10').itemsize, 10) + np.array([['abc', 2], ['long ', '0123456789']], dtype=np.bytes_) + assert_equal(np.dtype('S10').itemsize, 10) + + def test_any_float(self): + # all and any for floats + a = np.array([0.1, 0.9]) + assert_(np.any(a)) + assert_(np.all(a)) + + def test_large_float_sum(self): + a = np.arange(10000, dtype='f') + assert_equal(a.sum(dtype='d'), a.astype('d').sum()) + + def test_ufunc_casting_out(self): + a = np.array(1.0, dtype=np.float32) + b = np.array(1.0, dtype=np.float64) + c = np.array(1.0, dtype=np.float32) + np.add(a, b, out=c) + assert_equal(c, 2.0) + + def test_array_scalar_contiguous(self): + # Array scalars are both C and Fortran contiguous + assert_(np.array(1.0).flags.c_contiguous) + assert_(np.array(1.0).flags.f_contiguous) + assert_(np.array(np.float32(1.0)).flags.c_contiguous) + assert_(np.array(np.float32(1.0)).flags.f_contiguous) + + def test_squeeze_contiguous(self): + # Similar to GitHub issue #387 + a = np.zeros((1, 2)).squeeze() + b = np.zeros((2, 2, 2), order='F')[:, :, ::2].squeeze() + assert_(a.flags.c_contiguous) + assert_(a.flags.f_contiguous) + assert_(b.flags.f_contiguous) + + def test_squeeze_axis_handling(self): + # Issue #10779 + # Ensure proper handling of objects + # that don't support axis specification + # when squeezing + + class OldSqueeze(np.ndarray): + + def __new__(cls, + input_array): + obj = np.asarray(input_array).view(cls) + return obj + + # it is perfectly reasonable that prior + # to numpy version 1.7.0 a subclass of ndarray + # might have been created that did not expect + # squeeze to have an axis argument + # NOTE: this example is somewhat artificial; + # it is designed to simulate an old API + # expectation to guard against regression + def squeeze(self): + return super().squeeze() + + oldsqueeze = OldSqueeze(np.array([[1], [2], [3]])) + + # if no axis argument is specified the old API + # expectation should give the correct result + assert_equal(np.squeeze(oldsqueeze), + np.array([1, 2, 3])) + + # likewise, axis=None should work perfectly well + # with the old API expectation + assert_equal(np.squeeze(oldsqueeze, axis=None), + np.array([1, 2, 3])) + + # however, specification of any particular axis + # should raise a TypeError in the context of the + # old API specification, even when using a valid + # axis specification like 1 for this array + with assert_raises(TypeError): + # this would silently succeed for array + # subclasses / objects that did not support + # squeeze axis argument handling before fixing + # Issue #10779 + np.squeeze(oldsqueeze, axis=1) + + # check for the same behavior when using an invalid + # axis specification -- in this case axis=0 does not + # have size 1, but the priority should be to raise + # a TypeError for the axis argument and NOT a + # ValueError for squeezing a non-empty dimension + with assert_raises(TypeError): + np.squeeze(oldsqueeze, axis=0) + + # the new API knows how to handle the axis + # argument and will return a ValueError if + # attempting to squeeze an axis that is not + # of length 1 + with assert_raises(ValueError): + np.squeeze(np.array([[1], [2], [3]]), axis=0) + + def test_reduce_contiguous(self): + # GitHub issue #387 + a = np.add.reduce(np.zeros((2, 1, 2)), (0, 1)) + b = np.add.reduce(np.zeros((2, 1, 2)), 1) + assert_(a.flags.c_contiguous) + assert_(a.flags.f_contiguous) + assert_(b.flags.c_contiguous) + + @pytest.mark.skipif(IS_PYSTON, reason="Pyston disables recursion checking") + @pytest.mark.skipif(IS_WASM, reason="Pyodide/WASM has limited stack size") + def test_object_array_self_reference(self): + # Object arrays with references to themselves can cause problems + a = np.array(0, dtype=object) + a[()] = a + assert_raises(RecursionError, int, a) + assert_raises(RecursionError, float, a) + a[()] = None + + @pytest.mark.skipif(IS_PYSTON, reason="Pyston disables recursion checking") + @pytest.mark.skipif(IS_WASM, reason="Pyodide/WASM has limited stack size") + def test_object_array_circular_reference(self): + # Test the same for a circular reference. + a = np.array(0, dtype=object) + b = np.array(0, dtype=object) + a[()] = b + b[()] = a + assert_raises(RecursionError, int, a) + # NumPy has no tp_traverse currently, so circular references + # cannot be detected. So resolve it: + a[()] = None + + # This was causing a to become like the above + a = np.array(0, dtype=object) + a[...] += 1 + assert_equal(a, 1) + + def test_object_array_nested(self): + # but is fine with a reference to a different array + a = np.array(0, dtype=object) + b = np.array(0, dtype=object) + a[()] = b + assert_equal(int(a), int(0)) # noqa: UP018 + assert_equal(float(a), float(0)) + + def test_object_array_self_copy(self): + # An object array being copied into itself DECREF'ed before INCREF'ing + # causing segmentation faults (gh-3787) + a = np.array(object(), dtype=object) + np.copyto(a, a) + if HAS_REFCOUNT: + assert_(sys.getrefcount(a[()]) == 2) + a[()].__class__ # will segfault if object was deleted + + def test_zerosize_accumulate(self): + "Ticket #1733" + x = np.array([[42, 0]], dtype=np.uint32) + assert_equal(np.add.accumulate(x[:-1, 0]), []) + + def test_objectarray_setfield(self): + # Setfield should not overwrite Object fields with non-Object data + x = np.array([1, 2, 3], dtype=object) + assert_raises(TypeError, x.setfield, 4, np.int32, 0) + + def test_setting_rank0_string(self): + "Ticket #1736" + s1 = b"hello1" + s2 = b"hello2" + a = np.zeros((), dtype="S10") + a[()] = s1 + assert_equal(a, np.array(s1)) + a[()] = np.array(s2) + assert_equal(a, np.array(s2)) + + a = np.zeros((), dtype='f4') + a[()] = 3 + assert_equal(a, np.array(3)) + a[()] = np.array(4) + assert_equal(a, np.array(4)) + + def test_string_astype(self): + "Ticket #1748" + s1 = b'black' + s2 = b'white' + s3 = b'other' + a = np.array([[s1], [s2], [s3]]) + assert_equal(a.dtype, np.dtype('S5')) + b = a.astype(np.dtype('S0')) + assert_equal(b.dtype, np.dtype('S5')) + + def test_ticket_1756(self): + # Ticket #1756 + s = b'0123456789abcdef' + a = np.array([s] * 5) + for i in range(1, 17): + a1 = np.array(a, "|S%d" % i) + a2 = np.array([s[:i]] * 5) + assert_equal(a1, a2) + + def test_fields_strides(self): + "gh-2355" + r = np.frombuffer(b'abcdefghijklmnop' * 4 * 3, dtype='i4,(2,3)u2') + assert_equal(r[0:3:2]['f1'], r['f1'][0:3:2]) + assert_equal(r[0:3:2]['f1'][0], r[0:3:2][0]['f1']) + assert_equal(r[0:3:2]['f1'][0][()], r[0:3:2][0]['f1'][()]) + assert_equal(r[0:3:2]['f1'][0].strides, r[0:3:2][0]['f1'].strides) + + def test_alignment_update(self): + # Check that alignment flag is updated on stride setting + a = np.arange(10) + assert_(a.flags.aligned) + with pytest.warns(DeprecationWarning): + a.strides = 3 + assert_(not a.flags.aligned) + + def test_ticket_1770(self): + "Should not segfault on python 3k" + import numpy as np + try: + a = np.zeros((1,), dtype=[('f1', 'f')]) + a['f1'] = 1 + a['f2'] = 1 + except ValueError: + pass + except Exception: + raise AssertionError + + def test_ticket_1608(self): + "x.flat shouldn't modify data" + x = np.array([[1, 2], [3, 4]]).T + np.array(x.flat) + assert_equal(x, [[1, 3], [2, 4]]) + + def test_pickle_string_overwrite(self): + import re + + data = np.array([1], dtype='b') + blob = pickle.dumps(data, protocol=1) + data = pickle.loads(blob) + + # Check that loads does not clobber interned strings + s = re.sub(r"a(.)", "\x01\\1", "a_") + assert_equal(s[0], "\x01") + data[0] = 0x6a + s = re.sub(r"a(.)", "\x01\\1", "a_") + assert_equal(s[0], "\x01") + + def test_pickle_bytes_overwrite(self): + for proto in range(2, pickle.HIGHEST_PROTOCOL + 1): + data = np.array([1], dtype='b') + data = pickle.loads(pickle.dumps(data, protocol=proto)) + data[0] = 0x7d + bytestring = "\x01 ".encode('ascii') + assert_equal(bytestring[0:1], '\x01'.encode('ascii')) + + @pytest.mark.filterwarnings( + "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning") + def test_pickle_py2_array_latin1_hack(self): + # Check that unpickling hacks in Py3 that support + # encoding='latin1' work correctly. + + # Python2 output for pickle.dumps(numpy.array([129], dtype='b')) + data = b"cnumpy.core.multiarray\n_reconstruct\np0\n(cnumpy\nndarray\np1\n(I0\ntp2\nS'b'\np3\ntp4\nRp5\n(I1\n(I1\ntp6\ncnumpy\ndtype\np7\n(S'i1'\np8\nI0\nI1\ntp9\nRp10\n(I3\nS'|'\np11\nNNNI-1\nI-1\nI0\ntp12\nbI00\nS'\\x81'\np13\ntp14\nb." + # This should work: + result = pickle.loads(data, encoding='latin1') + assert_array_equal(result, np.array([129]).astype('b')) + # Should not segfault: + assert_raises(Exception, pickle.loads, data, encoding='koi8-r') + + @pytest.mark.filterwarnings( + "ignore:.*align should be passed:numpy.exceptions.VisibleDeprecationWarning") + def test_pickle_py2_scalar_latin1_hack(self): + # Check that scalar unpickling hack in Py3 that supports + # encoding='latin1' work correctly. + + # Python2 output for pickle.dumps(...) + datas = [ + # (original, python2_pickle, koi8r_validity) + (np.str_('\u6bd2'), + b"cnumpy.core.multiarray\nscalar\np0\n(cnumpy\ndtype\np1\n(S'U1'\np2\nI0\nI1\ntp3\nRp4\n(I3\nS'<'\np5\nNNNI4\nI4\nI0\ntp6\nbS'\\xd2k\\x00\\x00'\np7\ntp8\nRp9\n.", + 'invalid'), + + (np.float64(9e123), + b"cnumpy.core.multiarray\nscalar\np0\n(cnumpy\ndtype\np1\n(S'f8'\np2\nI0\nI1\ntp3\nRp4\n(I3\nS'<'\np5\nNNNI-1\nI-1\nI0\ntp6\nbS'O\\x81\\xb7Z\\xaa:\\xabY'\np7\ntp8\nRp9\n.", + 'invalid'), + + # different 8-bit code point in KOI8-R vs latin1 + (np.bytes_(b'\x9c'), + b"cnumpy.core.multiarray\nscalar\np0\n(cnumpy\ndtype\np1\n(S'S1'\np2\nI0\nI1\ntp3\nRp4\n(I3\nS'|'\np5\nNNNI1\nI1\nI0\ntp6\nbS'\\x9c'\np7\ntp8\nRp9\n.", + 'different'), + ] + for original, data, koi8r_validity in datas: + result = pickle.loads(data, encoding='latin1') + assert_equal(result, original) + + # Decoding under non-latin1 encoding (e.g.) KOI8-R can + # produce bad results, but should not segfault. + if koi8r_validity == 'different': + # Unicode code points happen to lie within latin1, + # but are different in koi8-r, resulting to silent + # bogus results + result = pickle.loads(data, encoding='koi8-r') + assert_(result != original) + elif koi8r_validity == 'invalid': + # Unicode code points outside latin1, so results + # to an encoding exception + assert_raises( + ValueError, pickle.loads, data, encoding='koi8-r' + ) + else: + raise ValueError(koi8r_validity) + + def test_structured_type_to_object(self): + a_rec = np.array([(0, 1), (3, 2)], dtype='i4,i8') + a_obj = np.empty((2,), dtype=object) + a_obj[0] = (0, 1) + a_obj[1] = (3, 2) + # astype records -> object + assert_equal(a_rec.astype(object), a_obj) + # '=' records -> object + b = np.empty_like(a_obj) + b[...] = a_rec + assert_equal(b, a_obj) + # '=' object -> records + b = np.empty_like(a_rec) + b[...] = a_obj + assert_equal(b, a_rec) + + def test_assign_obj_listoflists(self): + # Ticket # 1870 + # The inner list should get assigned to the object elements + a = np.zeros(4, dtype=object) + b = a.copy() + a[0] = [1] + a[1] = [2] + a[2] = [3] + a[3] = [4] + b[...] = [[1], [2], [3], [4]] + assert_equal(a, b) + # The first dimension should get broadcast + a = np.zeros((2, 2), dtype=object) + a[...] = [[1, 2]] + assert_equal(a, [[1, 2], [1, 2]]) + + @pytest.mark.slow_pypy + def test_memoryleak(self): + # Ticket #1917 - ensure that array data doesn't leak + for i in range(1000): + # 100MB times 1000 would give 100GB of memory usage if it leaks + a = np.empty((100000000,), dtype='i1') + del a + + @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") + def test_ufunc_reduce_memoryleak(self): + a = np.arange(6) + acnt = sys.getrefcount(a) + np.add.reduce(a) + assert_equal(sys.getrefcount(a), acnt) + + def test_search_sorted_invalid_arguments(self): + # Ticket #2021, should not segfault. + x = np.arange(0, 4, dtype='datetime64[D]') + assert_raises(TypeError, x.searchsorted, 1) + + def test_string_truncation(self): + # Ticket #1990 - Data can be truncated in creation of an array from a + # mixed sequence of numeric values and strings (gh-2583) + for val in [True, 1234, 123.4, complex(1, 234)]: + for tostr, dtype in [(asunicode, "U"), (asbytes, "S")]: + b = np.array([val, tostr('xx')], dtype=dtype) + assert_equal(tostr(b[0]), tostr(val)) + b = np.array([tostr('xx'), val], dtype=dtype) + assert_equal(tostr(b[1]), tostr(val)) + + # test also with longer strings + b = np.array([val, tostr('xxxxxxxxxx')], dtype=dtype) + assert_equal(tostr(b[0]), tostr(val)) + b = np.array([tostr('xxxxxxxxxx'), val], dtype=dtype) + assert_equal(tostr(b[1]), tostr(val)) + + def test_string_truncation_ucs2(self): + # Ticket #2081. Python compiled with two byte unicode + # can lead to truncation if itemsize is not properly + # adjusted for NumPy's four byte unicode. + a = np.array(['abcd']) + assert_equal(a.dtype.itemsize, 16) + + def test_unique_stable(self): + # Ticket #2063 must always choose stable sort for argsort to + # get consistent results + v = np.array(([0] * 5 + [1] * 6 + [2] * 6) * 4) + res = np.unique(v, return_index=True) + tgt = (np.array([0, 1, 2]), np.array([0, 5, 11])) + assert_equal(res, tgt) + + def test_unicode_alloc_dealloc_match(self): + # Ticket #1578, the mismatch only showed up when running + # python-debug for python versions >= 2.7, and then as + # a core dump and error message. + a = np.array(['abc'], dtype=np.str_)[0] + del a + + def test_refcount_error_in_clip(self): + # Ticket #1588 + a = np.zeros((2,), dtype='>i2').clip(min=0) + x = a + a + # This used to segfault: + y = str(x) + # Check the final string: + assert_(y == "[0 0]") + + def test_searchsorted_wrong_dtype(self): + # Ticket #2189, it used to segfault, so we check that it raises the + # proper exception. + a = np.array([('a', 1)], dtype='S1, int') + assert_raises(TypeError, np.searchsorted, a, 1.2) + # Ticket #2066, similar problem: + dtype = np.rec.format_parser(['i4', 'i4'], [], []) + a = np.recarray((2,), dtype) + a[...] = [(1, 2), (3, 4)] + assert_raises(TypeError, np.searchsorted, a, 1) + + def test_complex64_alignment(self): + # Issue gh-2668 (trac 2076), segfault on sparc due to misalignment + dtt = np.complex64 + arr = np.arange(10, dtype=dtt) + # 2D array + arr2 = np.reshape(arr, (2, 5)) + # Fortran write followed by (C or F) read caused bus error + data_str = arr2.tobytes('F') + data_back = np.ndarray(arr2.shape, + arr2.dtype, + buffer=data_str, + order='F') + assert_array_equal(arr2, data_back) + + def test_structured_count_nonzero(self): + arr = np.array([0, 1]).astype('i4, 2i4')[:1] + count = np.count_nonzero(arr) + assert_equal(count, 0) + + def test_copymodule_preserves_f_contiguity(self): + a = np.empty((2, 2), order='F') + b = copy.copy(a) + c = copy.deepcopy(a) + assert_(b.flags.fortran) + assert_(b.flags.f_contiguous) + assert_(c.flags.fortran) + assert_(c.flags.f_contiguous) + + def test_fortran_order_buffer(self): + import numpy as np + a = np.array([['Hello', 'Foob']], dtype='U5', order='F') + arr = np.ndarray(shape=[1, 2, 5], dtype='U1', buffer=a) + arr2 = np.array([[['H', 'e', 'l', 'l', 'o'], + ['F', 'o', 'o', 'b', '']]]) + assert_array_equal(arr, arr2) + + def test_assign_from_sequence_error(self): + # Ticket #4024. + arr = np.array([1, 2, 3]) + assert_raises(ValueError, arr.__setitem__, slice(None), [9, 9]) + arr.__setitem__(slice(None), [9]) + assert_equal(arr, [9, 9, 9]) + + def test_format_on_flex_array_element(self): + # Ticket #4369. + dt = np.dtype([('date', ' 0: + # unpickling ndarray goes through _frombuffer for protocol 5 + assert b'numpy._core.numeric' in s + else: + assert b'numpy._core.multiarray' in s + + def test_object_casting_errors(self): + # gh-11993 update to ValueError (see gh-16909), since strings can in + # principle be converted to complex, but this string cannot. + arr = np.array(['AAAAA', 18465886.0, 18465886.0], dtype=object) + assert_raises(ValueError, arr.astype, 'c8') + + def test_eff1d_casting(self): + # gh-12711 + x = np.array([1, 2, 4, 7, 0], dtype=np.int16) + res = np.ediff1d(x, to_begin=-99, to_end=np.array([88, 99])) + assert_equal(res, [-99, 1, 2, 3, -7, 88, 99]) + + # The use of safe casting means, that 1<<20 is cast unsafely, an + # error may be better, but currently there is no mechanism for it. + res = np.ediff1d(x, to_begin=(1 << 20), to_end=(1 << 20)) + assert_equal(res, [0, 1, 2, 3, -7, 0]) + + def test_pickle_datetime64_array(self): + # gh-12745 (would fail with pickle5 installed) + d = np.datetime64('2015-07-04 12:59:59.50', 'ns') + arr = np.array([d]) + for proto in range(2, pickle.HIGHEST_PROTOCOL + 1): + dumped = pickle.dumps(arr, protocol=proto) + assert_equal(pickle.loads(dumped), arr) + + def test_bad_array_interface(self): + class T: + __array_interface__ = {} + + with assert_raises(ValueError): + np.array([T()]) + + def test_2d__array__shape(self): + class T: + def __array__(self, dtype=None, copy=None): + return np.ndarray(shape=(0, 0)) + + # Make sure __array__ is used instead of Sequence methods. + def __iter__(self): + return iter([]) + + def __getitem__(self, idx): + raise AssertionError("__getitem__ was called") + + def __len__(self): + return 0 + + t = T() + # gh-13659, would raise in broadcasting [x=t for x in result] + arr = np.array([t]) + assert arr.shape == (1, 0, 0) + + @pytest.mark.skipif(sys.maxsize < 2 ** 31 + 1, reason='overflows 32-bit python') + def test_to_ctypes(self): + # gh-14214 + arr = np.zeros((2 ** 31 + 1,), 'b') + assert arr.size * arr.itemsize > 2 ** 31 + c_arr = np.ctypeslib.as_ctypes(arr) + assert_equal(c_arr._length_, arr.size) + + def test_complex_conversion_error(self): + # gh-17068 + with pytest.raises(TypeError, match=r"Unable to convert dtype.*"): + complex(np.array("now", np.datetime64)) + + def test__array_interface__descr(self): + # gh-17068 + dt = np.dtype({'names': ['a', 'b'], + 'offsets': [0, 0], + 'formats': [np.int64, np.int64]}) + descr = np.array((1, 1), dtype=dt).__array_interface__['descr'] + assert descr == [('', '|V8')] # instead of [(b'', '|V8')] + + @pytest.mark.skipif(sys.maxsize < 2 ** 31 + 1, reason='overflows 32-bit python') + @requires_memory(free_bytes=9e9) + @pytest.mark.thread_unsafe(reason="crashes with low memory") + def test_dot_big_stride(self): + # gh-17111 + # blas stride = stride//itemsize > int32 max + int32_max = np.iinfo(np.int32).max + n = int32_max + 3 + a = np.empty([n], dtype=np.float32) + b = a[::n - 1] + b[...] = 1 + assert b.strides[0] > int32_max * b.dtype.itemsize + assert np.dot(b, b) == 2.0 + + def test_frompyfunc_name(self): + # name conversion was failing for python 3 strings + # resulting in the default '?' name. Also test utf-8 + # encoding using non-ascii name. + def cassé(x): + return x + + f = np.frompyfunc(cassé, 1, 1) + assert str(f) == "" + + @pytest.mark.parametrize("operation", [ + 'add', 'subtract', 'multiply', 'floor_divide', + 'conjugate', 'fmod', 'square', 'reciprocal', + 'power', 'absolute', 'negative', 'positive', + 'greater', 'greater_equal', 'less', + 'less_equal', 'equal', 'not_equal', 'logical_and', + 'logical_not', 'logical_or', 'bitwise_and', 'bitwise_or', + 'bitwise_xor', 'invert', 'left_shift', 'right_shift', + 'gcd', 'lcm' + ] + ) + @pytest.mark.parametrize("order", [ + ('b->', 'B->'), + ('h->', 'H->'), + ('i->', 'I->'), + ('l->', 'L->'), + ('q->', 'Q->'), + ] + ) + def test_ufunc_order(self, operation, order): + # gh-18075 + # Ensure signed types before unsigned + def get_idx(string, str_lst): + for i, s in enumerate(str_lst): + if string in s: + return i + raise ValueError(f"{string} not in list") + types = getattr(np, operation).types + assert get_idx(order[0], types) < get_idx(order[1], types), ( + f"Unexpected types order of ufunc in {operation}" + f"for {order}. Possible fix: Use signed before unsigned" + "in generate_umath.py") + + def test_nonbool_logical(self): + # gh-22845 + # create two arrays with bit patterns that do not overlap. + # needs to be large enough to test both SIMD and scalar paths + size = 100 + a = np.frombuffer(b'\x01' * size, dtype=np.bool) + b = np.frombuffer(b'\x80' * size, dtype=np.bool) + expected = np.ones(size, dtype=np.bool) + assert_array_equal(np.logical_and(a, b), expected) + + @pytest.mark.skipif(IS_PYPY, reason="PyPy issue 2742") + def test_gh_23737(self): + with pytest.raises(TypeError, match="not an acceptable base type"): + class Y(np.flexible): + pass + + with pytest.raises(TypeError, match="not an acceptable base type"): + class X(np.flexible, np.ma.core.MaskedArray): + pass + + def test_load_ufunc_pickle(self): + # ufuncs are pickled with a semi-private path in + # numpy.core._multiarray_umath and must be loadable without warning + # despite np.core being deprecated. + test_data = b'\x80\x04\x95(\x00\x00\x00\x00\x00\x00\x00\x8c\x1cnumpy.core._multiarray_umath\x94\x8c\x03add\x94\x93\x94.' + result = pickle.loads(test_data, encoding='bytes') + assert result is np.add + + def test__array_namespace__(self): + arr = np.arange(2) + + xp = arr.__array_namespace__() + assert xp is np + xp = arr.__array_namespace__(api_version="2021.12") + assert xp is np + xp = arr.__array_namespace__(api_version="2022.12") + assert xp is np + xp = arr.__array_namespace__(api_version="2023.12") + assert xp is np + xp = arr.__array_namespace__(api_version="2024.12") + assert xp is np + xp = arr.__array_namespace__(api_version=None) + assert xp is np + + with pytest.raises( + ValueError, + match="Version \"2025.12\" of the Array API Standard " + "is not supported." + ): + arr.__array_namespace__(api_version="2025.12") + + with pytest.raises( + ValueError, + match="Only None and strings are allowed as the Array API version" + ): + arr.__array_namespace__(api_version=2024) + + def test_isin_refcnt_bug(self): + # gh-25295 + for _ in range(1000): + np.isclose(np.int64(2), np.int64(2), atol=1e-15, rtol=1e-300) + + def test_replace_regression(self): + # gh-25513 segfault + carr = np.char.chararray((2,), itemsize=25) + test_strings = [b' 4.52173913043478315E+00', + b' 4.95652173913043548E+00'] + carr[:] = test_strings + out = carr.replace(b"E", b"D") + expected = np.char.chararray((2,), itemsize=25) + expected[:] = [s.replace(b"E", b"D") for s in test_strings] + assert_array_equal(out, expected) + + def test_logspace_base_does_not_determine_dtype(self): + # gh-24957 and cupy/cupy/issues/7946 + start = np.array([0, 2], dtype=np.float16) + stop = np.array([2, 0], dtype=np.float16) + out = np.logspace(start, stop, num=5, axis=1, dtype=np.float32) + expected = np.array([[1., 3.1621094, 10., 31.625, 100.], + [100., 31.625, 10., 3.1621094, 1.]], + dtype=np.float32) + assert_almost_equal(out, expected) + # Check test fails if the calculation is done in float64, as happened + # before when a python float base incorrectly influenced the dtype. + out2 = np.logspace(start, stop, num=5, axis=1, dtype=np.float32, + base=np.array([10.0])) + with pytest.raises(AssertionError, match="not almost equal"): + assert_almost_equal(out2, expected) + + def test_vectorize_fixed_width_string(self): + arr = np.array(["SOme wOrd DŽ ß ᾛ ΣΣ ffi⁵Å Ç Ⅰ"]).astype(np.str_) + f = str.casefold + res = np.vectorize(f, otypes=[arr.dtype])(arr) + assert res.dtype == "U30" + + def test_repeated_square_consistency(self): + # gh-26940 + buf = np.array([-5.171866611150749e-07 + 2.5618634555957426e-07j, + 0, 0, 0, 0, 0]) + # Test buffer with regular and reverse strides + for in_vec in [buf[:3], buf[:3][::-1]]: + expected_res = np.square(in_vec) + # Output vector immediately follows input vector + # to reproduce off-by-one in nomemoverlap check. + for res in [buf[3:], buf[3:][::-1]]: + res = buf[3:] + np.square(in_vec, out=res) + assert_equal(res, expected_res) + + def test_sort_unique_crash(self): + # gh-27037 + for _ in range(4): + vals = np.linspace(0, 1, num=128) + data = np.broadcast_to(vals, (128, 128, 128)) + data = data.transpose(0, 2, 1).copy() + np.unique(data) + + def test_sort_overlap(self): + # gh-27273 + size = 100 + inp = np.linspace(0, size, num=size, dtype=np.intc) + out = np.sort(inp) + assert_equal(inp, out) + + def test_searchsorted_structured(self): + # gh-28190 + x = np.array([(0, 1.)], dtype=[('time', ' None: + cls = np.dtype(code).type + value = cls(str_value) + assert not value.is_integer() + + @pytest.mark.parametrize( + "code", np.typecodes["Float"] + np.typecodes["AllInteger"] + ) + def test_true(self, code: str) -> None: + float_array = np.arange(-5, 5).astype(code) + for value in float_array: + assert value.is_integer() + + @pytest.mark.parametrize("code", np.typecodes["Float"]) + def test_false(self, code: str) -> None: + float_array = np.arange(-5, 5).astype(code) + float_array *= 1.1 + for value in float_array: + if value == 0: + continue + assert not value.is_integer() + + +class TestClassGetItem: + @pytest.mark.parametrize("cls", [ + np.number, + np.integer, + np.inexact, + np.unsignedinteger, + np.signedinteger, + np.floating, + ]) + def test_abc(self, cls: type[np.number]) -> None: + alias = cls[Any] + assert isinstance(alias, types.GenericAlias) + assert alias.__origin__ is cls + + def test_abc_complexfloating(self) -> None: + alias = np.complexfloating[Any, Any] + assert isinstance(alias, types.GenericAlias) + assert alias.__origin__ is np.complexfloating + + @pytest.mark.parametrize("arg_len", range(4)) + def test_abc_complexfloating_subscript_tuple(self, arg_len: int) -> None: + arg_tup = (Any,) * arg_len + if arg_len in (1, 2): + assert np.complexfloating[arg_tup] + else: + match = f"Too {'few' if arg_len == 0 else 'many'} arguments" + with pytest.raises(TypeError, match=match): + np.complexfloating[arg_tup] + + @pytest.mark.parametrize("cls", [np.generic, np.flexible, np.character]) + def test_abc_non_numeric(self, cls: type[np.generic]) -> None: + with pytest.raises(TypeError): + cls[Any] + + @pytest.mark.parametrize("code", np.typecodes["All"]) + def test_concrete(self, code: str) -> None: + cls = np.dtype(code).type + if cls in {np.bool, np.datetime64}: + # these are intentionally subscriptable + assert cls[Any] + else: + with pytest.raises(TypeError): + cls[Any] + + @pytest.mark.parametrize("arg_len", range(4)) + def test_subscript_tuple(self, arg_len: int) -> None: + arg_tup = (Any,) * arg_len + if arg_len == 1: + assert np.number[arg_tup] + else: + with pytest.raises(TypeError): + np.number[arg_tup] + + def test_subscript_scalar(self) -> None: + assert np.number[Any] + + @pytest.mark.parametrize("subscript", [Literal[True], Literal[False]]) + def test_subscript_bool(self, subscript: Literal[True, False]) -> None: + assert isinstance(np.bool[subscript], types.GenericAlias) + + +class TestBitCount: + # derived in part from the cpython test "test_bit_count" + + @pytest.mark.parametrize("itype", sctypes['int'] + sctypes['uint']) + def test_small(self, itype): + for a in range(max(np.iinfo(itype).min, 0), 128): + msg = f"Smoke test for {itype}({a}).bit_count()" + assert itype(a).bit_count() == a.bit_count(), msg + + def test_bit_count(self): + for exp in [10, 17, 63]: + a = 2**exp + assert np.uint64(a).bit_count() == 1 + assert np.uint64(a - 1).bit_count() == exp + assert np.uint64(a ^ 63).bit_count() == 7 + assert np.uint64((a - 1) ^ 510).bit_count() == exp - 8 + + +class TestDevice: + """ + Test scalar.device attribute and scalar.to_device() method. + """ + scalars = [np.bool(True), np.int64(1), np.uint64(1), np.float64(1.0), + np.complex128(1 + 1j)] + + @pytest.mark.parametrize("scalar", scalars) + def test_device(self, scalar): + assert scalar.device == "cpu" + + @pytest.mark.parametrize("scalar", scalars) + def test_to_device(self, scalar): + assert scalar.to_device("cpu") is scalar + + @pytest.mark.parametrize("scalar", scalars) + def test___array_namespace__(self, scalar): + assert scalar.__array_namespace__() is np + + +@pytest.mark.parametrize("scalar", [np.bool(True), np.int8(1), np.float64(1)]) +def test_array_wrap(scalar): + # Test scalars array wrap as long as it exists. NumPy itself should + # probably not use it, so it may not be necessary to keep it around. + + arr0d = np.array(3, dtype=np.int8) + # Third argument not passed, None, or True "decays" to scalar. + # (I don't think NumPy would pass `None`, but it seems clear to support) + assert type(scalar.__array_wrap__(arr0d)) is np.int8 + assert type(scalar.__array_wrap__(arr0d, None, None)) is np.int8 + assert type(scalar.__array_wrap__(arr0d, None, True)) is np.int8 + + # Otherwise, result should be the input + assert scalar.__array_wrap__(arr0d, None, False) is arr0d + + # An old bug. A non 0-d array cannot be converted to scalar: + arr1d = np.array([3], dtype=np.int8) + assert scalar.__array_wrap__(arr1d) is arr1d + assert scalar.__array_wrap__(arr1d, None, True) is arr1d + + +@pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO") +@pytest.mark.skipif(IS_PYPY, reason="PyPy does not modify tp_doc") +class TestSignature: + # test that scalar types have a valid __text_signature__ or __signature__ set + @pytest.mark.parametrize( + "sctype", + [ + *sctypes["int"], + *sctypes["uint"], + *sctypes["float"], + *sctypes["complex"], + *sctypes["others"], + np.datetime64, + np.timedelta64, + ], + ) + def test_constructor_signatures(self, sctype: type[np.generic]): + try: + sig = inspect.signature(sctype) + except ValueError: + pytest.fail(f"missing signature: {sctype}") + + assert sig.parameters + + @pytest.mark.parametrize( + "sctype", + [np.integer, *sctypes["int"], *sctypes["uint"], *sctypes["float"]], + ) + def test_method_signatures_is_integer(self, sctype: type[np.integer | np.floating]): + try: + sig = inspect.signature(sctype.is_integer) + except ValueError: + pytest.fail(f"missing signature: {sctype.__name__}.is_integer") + + assert len(sig.parameters) == 1 + assert sig.parameters["self"].kind == inspect.Parameter.POSITIONAL_ONLY + + @pytest.mark.parametrize("sctype", sctypes["float"]) + def test_method_signatures_as_integer_ratio(self, sctype: type[np.floating]): + try: + sig = inspect.signature(sctype.as_integer_ratio) + except ValueError: + pytest.fail(f"missing signature: {sctype.__name__}.as_integer_ratio") + + assert len(sig.parameters) == 1 + assert sig.parameters["self"].kind == inspect.Parameter.POSITIONAL_ONLY + + @pytest.mark.parametrize( + "method_name", + [ + "__array_namespace__", "__copy__", "__deepcopy__", "all", "any", "argmax", + "argmin", "argsort", "astype", "byteswap", "choose", "clip", "compress", + "conj", "conjugate", "copy", "cumprod", "cumsum", "diagonal", "dump", + "dumps", "fill", "flatten", "getfield", "item", "max", "mean", "min", + "nonzero", "prod", "put", "ravel", "repeat", "reshape", "resize", "round", + "searchsorted", "setfield", "setflags", "sort", "squeeze", "std", "sum", + "swapaxes", "take", "to_device", "tobytes", "tofile", "tolist", "trace", + "transpose", "var", "view", + ], + ) + def test_array_scalar_method_signatures(self, method_name: str): + # methods shared by np.generic and np.ndarray should have the same signature + fn_generic = getattr(np.generic, method_name) + sig_generic = inspect.signature(fn_generic) + assert "self" in sig_generic.parameters + assert sig_generic.parameters["self"].kind is inspect.Parameter.POSITIONAL_ONLY + + fn_ndarray = getattr(np.ndarray, method_name) + sig_ndarray = inspect.signature(fn_ndarray) + assert sig_generic == sig_ndarray diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_scalarbuffer.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_scalarbuffer.py new file mode 100644 index 0000000000000000000000000000000000000000..4d2744b85e53ca1dd7cd07f118aa621eb3f7c1ce --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_scalarbuffer.py @@ -0,0 +1,153 @@ +""" +Test scalar buffer interface adheres to PEP 3118 +""" +import pytest + +import numpy as np +from numpy._core._multiarray_tests import get_buffer_info +from numpy._core._rational_tests import rational +from numpy.testing import assert_, assert_equal, assert_raises + +# PEP3118 format strings for native (standard alignment and byteorder) types +scalars_and_codes = [ + (np.bool, '?'), + (np.byte, 'b'), + (np.short, 'h'), + (np.intc, 'i'), + (np.long, 'l'), + (np.longlong, 'q'), + (np.ubyte, 'B'), + (np.ushort, 'H'), + (np.uintc, 'I'), + (np.ulong, 'L'), + (np.ulonglong, 'Q'), + (np.half, 'e'), + (np.single, 'f'), + (np.double, 'd'), + (np.longdouble, 'g'), + (np.csingle, 'Zf'), + (np.cdouble, 'Zd'), + (np.clongdouble, 'Zg'), +] +scalars_only, codes_only = zip(*scalars_and_codes) + + +class TestScalarPEP3118: + + @pytest.mark.parametrize('scalar', scalars_only, ids=codes_only) + def test_scalar_match_array(self, scalar): + x = scalar() + a = np.array([], dtype=np.dtype(scalar)) + mv_x = memoryview(x) + mv_a = memoryview(a) + assert_equal(mv_x.format, mv_a.format) + + @pytest.mark.parametrize('scalar', scalars_only, ids=codes_only) + def test_scalar_dim(self, scalar): + x = scalar() + mv_x = memoryview(x) + assert_equal(mv_x.itemsize, np.dtype(scalar).itemsize) + assert_equal(mv_x.ndim, 0) + assert_equal(mv_x.shape, ()) + assert_equal(mv_x.strides, ()) + assert_equal(mv_x.suboffsets, ()) + + @pytest.mark.parametrize('scalar, code', scalars_and_codes, ids=codes_only) + def test_scalar_code_and_properties(self, scalar, code): + x = scalar() + expected = {'strides': (), 'itemsize': x.dtype.itemsize, 'ndim': 0, + 'shape': (), 'format': code, 'readonly': True} + + mv_x = memoryview(x) + assert self._as_dict(mv_x) == expected + + @pytest.mark.parametrize('scalar', scalars_only, ids=codes_only) + def test_scalar_buffers_readonly(self, scalar): + x = scalar() + with pytest.raises(BufferError, match="scalar buffer is readonly"): + get_buffer_info(x, ["WRITABLE"]) + + def test_void_scalar_structured_data(self): + dt = np.dtype([('name', np.str_, 16), ('grades', np.float64, (2,))]) + x = np.array(('ndarray_scalar', (1.2, 3.0)), dtype=dt)[()] + assert_(isinstance(x, np.void)) + mv_x = memoryview(x) + expected_size = 16 * np.dtype((np.str_, 1)).itemsize + expected_size += 2 * np.dtype(np.float64).itemsize + assert_equal(mv_x.itemsize, expected_size) + assert_equal(mv_x.ndim, 0) + assert_equal(mv_x.shape, ()) + assert_equal(mv_x.strides, ()) + assert_equal(mv_x.suboffsets, ()) + + # check scalar format string against ndarray format string + a = np.array([('Sarah', (8.0, 7.0)), ('John', (6.0, 7.0))], dtype=dt) + assert_(isinstance(a, np.ndarray)) + mv_a = memoryview(a) + assert_equal(mv_x.itemsize, mv_a.itemsize) + assert_equal(mv_x.format, mv_a.format) + + # Check that we do not allow writeable buffer export (technically + # we could allow it sometimes here...) + with pytest.raises(BufferError, match="scalar buffer is readonly"): + get_buffer_info(x, ["WRITABLE"]) + + def _as_dict(self, m): + return {'strides': m.strides, 'shape': m.shape, 'itemsize': m.itemsize, + 'ndim': m.ndim, 'format': m.format, 'readonly': m.readonly} + + def test_datetime_memoryview(self): + # gh-11656 + # Values verified with v1.13.3, shape is not () as in test_scalar_dim + + dt1 = np.datetime64('2016-01-01') + dt2 = np.datetime64('2017-01-01') + expected = {'strides': (1,), 'itemsize': 1, 'ndim': 1, 'shape': (8,), + 'format': 'B', 'readonly': True} + v = memoryview(dt1) + assert self._as_dict(v) == expected + + v = memoryview(dt2 - dt1) + assert self._as_dict(v) == expected + + dt = np.dtype([('a', 'uint16'), ('b', 'M8[s]')]) + a = np.empty(1, dt) + # Fails to create a PEP 3118 valid buffer + assert_raises((ValueError, BufferError), memoryview, a[0]) + + # Check that we do not allow writeable buffer export + with pytest.raises(BufferError, match="scalar buffer is readonly"): + get_buffer_info(dt1, ["WRITABLE"]) + + @pytest.mark.parametrize('s', [ + pytest.param("\x32\x32", id="ascii"), + pytest.param("\uFE0F\uFE0F", id="basic multilingual"), + pytest.param("\U0001f4bb\U0001f4bb", id="non-BMP"), + ]) + def test_str_ucs4(self, s): + s = np.str_(s) # only our subclass implements the buffer protocol + + # all the same, characters always encode as ucs4 + expected = {'strides': (), 'itemsize': 8, 'ndim': 0, 'shape': (), + 'format': '2w', 'readonly': True} + + v = memoryview(s) + assert self._as_dict(v) == expected + + # integers of the paltform-appropriate endianness + code_points = np.frombuffer(v, dtype='i4') + + assert_equal(code_points, [ord(c) for c in s]) + + # Check that we do not allow writeable buffer export + with pytest.raises(BufferError, match="scalar buffer is readonly"): + get_buffer_info(s, ["WRITABLE"]) + + def test_user_scalar_fails_buffer(self): + r = rational(1) + with assert_raises(TypeError): + memoryview(r) + + # Check that we do not allow writeable buffer export + with pytest.raises(BufferError, match="scalar buffer is readonly"): + get_buffer_info(r, ["WRITABLE"]) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_scalarinherit.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_scalarinherit.py new file mode 100644 index 0000000000000000000000000000000000000000..746a1574782a4709439bd047c92655dfb4d2fcb4 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_scalarinherit.py @@ -0,0 +1,105 @@ +""" Test printing of scalar types. + +""" +import pytest + +import numpy as np +from numpy.testing import assert_, assert_raises + + +class A: + pass +class B(A, np.float64): + pass + +class C(B): + pass +class D(C, B): + pass + +class B0(np.float64, A): + pass +class C0(B0): + pass + +class HasNew: + def __new__(cls, *args, **kwargs): + return cls, args, kwargs + +class B1(np.float64, HasNew): + pass + + +class TestInherit: + def test_init(self): + x = B(1.0) + assert_(str(x) == '1.0') + y = C(2.0) + assert_(str(y) == '2.0') + z = D(3.0) + assert_(str(z) == '3.0') + + def test_init2(self): + x = B0(1.0) + assert_(str(x) == '1.0') + y = C0(2.0) + assert_(str(y) == '2.0') + + def test_gh_15395(self): + # HasNew is the second base, so `np.float64` should have priority + x = B1(1.0) + assert_(str(x) == '1.0') + + # previously caused RecursionError!? + with pytest.raises(TypeError): + B1(1.0, 2.0) + + def test_int_repr(self): + # Test that integer repr works correctly for subclasses (gh-27106) + class my_int16(np.int16): + pass + + s = repr(my_int16(3)) + assert s == "my_int16(3)" + +class TestCharacter: + def test_char_radd(self): + # GH issue 9620, reached gentype_add and raise TypeError + np_s = np.bytes_('abc') + np_u = np.str_('abc') + s = b'def' + u = 'def' + assert_(np_s.__radd__(np_s) is NotImplemented) + assert_(np_s.__radd__(np_u) is NotImplemented) + assert_(np_s.__radd__(s) is NotImplemented) + assert_(np_s.__radd__(u) is NotImplemented) + assert_(np_u.__radd__(np_s) is NotImplemented) + assert_(np_u.__radd__(np_u) is NotImplemented) + assert_(np_u.__radd__(s) is NotImplemented) + assert_(np_u.__radd__(u) is NotImplemented) + assert_(s + np_s == b'defabc') + assert_(u + np_u == 'defabc') + + class MyStr(str, np.generic): + # would segfault + pass + + with assert_raises(TypeError): + # Previously worked, but gave completely wrong result + ret = s + MyStr('abc') + + class MyBytes(bytes, np.generic): + # would segfault + pass + + ret = s + MyBytes(b'abc') + assert type(ret) is type(s) + assert ret == b"defabc" + + def test_char_repeat(self): + np_s = np.bytes_('abc') + np_u = np.str_('abc') + res_s = b'abc' * 5 + res_u = 'abc' * 5 + assert_(np_s * 5 == res_s) + assert_(np_u * 5 == res_u) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_scalarmath.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_scalarmath.py new file mode 100644 index 0000000000000000000000000000000000000000..bfbc9a54cbfe5808e65787dbfa12401c8e41ee5c --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_scalarmath.py @@ -0,0 +1,1168 @@ +import contextlib +import itertools +import operator +import platform +import sys +import warnings + +import pytest +from hypothesis import given, settings +from hypothesis.extra import numpy as hynp +from hypothesis.strategies import sampled_from + +import numpy as np +from numpy._core._rational_tests import rational +from numpy._utils import _pep440 +from numpy.exceptions import ComplexWarning +from numpy.testing import ( + IS_PYPY, + _gen_alignment_data, + assert_, + assert_almost_equal, + assert_array_equal, + assert_equal, + assert_raises, + check_support_sve, +) + +types = [np.bool, np.byte, np.ubyte, np.short, np.ushort, np.intc, np.uintc, + np.int_, np.uint, np.longlong, np.ulonglong, + np.single, np.double, np.longdouble, np.csingle, + np.cdouble, np.clongdouble] + +floating_types = np.floating.__subclasses__() +complex_floating_types = np.complexfloating.__subclasses__() + +objecty_things = [object(), None, np.array(None, dtype=object)] + +binary_operators_for_scalars = [ + operator.lt, operator.le, operator.eq, operator.ne, operator.ge, + operator.gt, operator.add, operator.floordiv, operator.mod, + operator.mul, operator.pow, operator.sub, operator.truediv +] +binary_operators_for_scalar_ints = binary_operators_for_scalars + [ + operator.xor, operator.or_, operator.and_ +] + + +# This compares scalarmath against ufuncs. + +class TestTypes: + def test_types(self): + for atype in types: + a = atype(1) + assert_(a == 1, f"error with {atype!r}: got {a!r}") + + def test_type_add(self): + # list of types + for k, atype in enumerate(types): + a_scalar = atype(3) + a_array = np.array([3], dtype=atype) + for l, btype in enumerate(types): + b_scalar = btype(1) + b_array = np.array([1], dtype=btype) + c_scalar = a_scalar + b_scalar + c_array = a_array + b_array + # It was comparing the type numbers, but the new ufunc + # function-finding mechanism finds the lowest function + # to which both inputs can be cast - which produces 'l' + # when you do 'q' + 'b'. The old function finding mechanism + # skipped ahead based on the first argument, but that + # does not produce properly symmetric results... + assert_equal(c_scalar.dtype, c_array.dtype, + "error with types (%d/'%c' + %d/'%c')" % + (k, np.dtype(atype).char, l, np.dtype(btype).char)) + + def test_type_create(self): + for atype in types: + a = np.array([1, 2, 3], atype) + b = atype([1, 2, 3]) + assert_equal(a, b) + + def test_leak(self): + # test leak of scalar objects + # a leak would show up in valgrind as still-reachable of ~2.6MB + for i in range(200000): + np.add(1, 1) + + +def check_ufunc_scalar_equivalence(op, arr1, arr2): + scalar1 = arr1[()] + scalar2 = arr2[()] + assert isinstance(scalar1, np.generic) + assert isinstance(scalar2, np.generic) + + if arr1.dtype.kind == "c" or arr2.dtype.kind == "c": + comp_ops = {operator.ge, operator.gt, operator.le, operator.lt} + if op in comp_ops and (np.isnan(scalar1) or np.isnan(scalar2)): + pytest.xfail("complex comp ufuncs use sort-order, scalars do not.") + if op == operator.pow and arr2.item() in [-1, 0, 0.5, 1, 2]: + # array**scalar special case can have different result dtype + # (Other powers may have issues also, but are not hit here.) + # TODO: It would be nice to resolve this issue. + pytest.skip("array**2 can have incorrect/weird result dtype") + + # ignore fpe's since they may just mismatch for integers anyway. + with warnings.catch_warnings(), np.errstate(all="ignore"): + # Comparisons DeprecationWarnings replacing errors (2022-03): + warnings.simplefilter("error", DeprecationWarning) + try: + res = op(arr1, arr2) + except Exception as e: + with pytest.raises(type(e)): + op(scalar1, scalar2) + else: + scalar_res = op(scalar1, scalar2) + assert_array_equal(scalar_res, res, strict=True) + + +@pytest.mark.slow +@settings(max_examples=10000, deadline=2000) +@given(sampled_from(binary_operators_for_scalars), + hynp.arrays(dtype=hynp.scalar_dtypes(), shape=()), + hynp.arrays(dtype=hynp.scalar_dtypes(), shape=())) +def test_array_scalar_ufunc_equivalence(op, arr1, arr2): + """ + This is a thorough test attempting to cover important promotion paths + and ensuring that arrays and scalars stay as aligned as possible. + However, if it creates troubles, it should maybe just be removed. + """ + check_ufunc_scalar_equivalence(op, arr1, arr2) + + +@pytest.mark.slow +@given(sampled_from(binary_operators_for_scalars), + hynp.scalar_dtypes(), hynp.scalar_dtypes()) +def test_array_scalar_ufunc_dtypes(op, dt1, dt2): + # Same as above, but don't worry about sampling weird values so that we + # do not have to sample as much + arr1 = np.array(2, dtype=dt1) + arr2 = np.array(3, dtype=dt2) # some power do weird things. + + check_ufunc_scalar_equivalence(op, arr1, arr2) + + +@pytest.mark.parametrize("fscalar", [np.float16, np.float32]) +def test_int_float_promotion_truediv(fscalar): + # Promotion for mixed int and float32/float16 must not go to float64 + i = np.int8(1) + f = fscalar(1) + expected = np.result_type(i, f) + assert (i / f).dtype == expected + assert (f / i).dtype == expected + # But normal int / int true division goes to float64: + assert (i / i).dtype == np.dtype("float64") + # For int16, result has to be ast least float32 (takes ufunc path): + assert (np.int16(1) / f).dtype == np.dtype("float32") + + +class TestBaseMath: + @pytest.mark.xfail(check_support_sve(), reason="gh-22982") + def test_blocked(self): + # test alignments offsets for simd instructions + # alignments for vz + 2 * (vs - 1) + 1 + for dt, sz in [(np.float32, 11), (np.float64, 7), (np.int32, 11)]: + for out, inp1, inp2, msg in _gen_alignment_data(dtype=dt, + type='binary', + max_size=sz): + exp1 = np.ones_like(inp1) + inp1[...] = np.ones_like(inp1) + inp2[...] = np.zeros_like(inp2) + assert_almost_equal(np.add(inp1, inp2), exp1, err_msg=msg) + assert_almost_equal(np.add(inp1, 2), exp1 + 2, err_msg=msg) + assert_almost_equal(np.add(1, inp2), exp1, err_msg=msg) + + np.add(inp1, inp2, out=out) + assert_almost_equal(out, exp1, err_msg=msg) + + inp2[...] += np.arange(inp2.size, dtype=dt) + 1 + assert_almost_equal(np.square(inp2), + np.multiply(inp2, inp2), err_msg=msg) + # skip true divide for ints + if dt != np.int32: + assert_almost_equal(np.reciprocal(inp2), + np.divide(1, inp2), err_msg=msg) + + inp1[...] = np.ones_like(inp1) + np.add(inp1, 2, out=out) + assert_almost_equal(out, exp1 + 2, err_msg=msg) + inp2[...] = np.ones_like(inp2) + np.add(2, inp2, out=out) + assert_almost_equal(out, exp1 + 2, err_msg=msg) + + def test_lower_align(self): + # check data that is not aligned to element size + # i.e doubles are aligned to 4 bytes on i386 + d = np.zeros(23 * 8, dtype=np.int8)[4:-4].view(np.float64) + o = np.zeros(23 * 8, dtype=np.int8)[4:-4].view(np.float64) + assert_almost_equal(d + d, d * 2) + np.add(d, d, out=o) + np.add(np.ones_like(d), d, out=o) + np.add(d, np.ones_like(d), out=o) + np.add(np.ones_like(d), d) + np.add(d, np.ones_like(d)) + + +class TestPower: + def test_small_types(self): + for t in [np.int8, np.int16, np.float16]: + a = t(3) + b = a ** 4 + assert_(b == 81, f"error with {t!r}: got {b!r}") + + def test_large_types(self): + for t in [np.int32, np.int64, np.float32, np.float64, np.longdouble]: + a = t(51) + b = a ** 4 + msg = f"error with {t!r}: got {b!r}" + if np.issubdtype(t, np.integer): + assert_(b == 6765201, msg) + else: + assert_almost_equal(b, 6765201, err_msg=msg) + + def test_integers_to_negative_integer_power(self): + # Note that the combination of uint64 with a signed integer + # has common type np.float64. The other combinations should all + # raise a ValueError for integer ** negative integer. + exp = [np.array(-1, dt)[()] for dt in 'bhilq'] + + # 1 ** -1 possible special case + base = [np.array(1, dt)[()] for dt in 'bhilqBHILQ'] + for i1, i2 in itertools.product(base, exp): + if i1.dtype != np.uint64: + assert_raises(ValueError, operator.pow, i1, i2) + else: + res = operator.pow(i1, i2) + assert_(res.dtype.type is np.float64) + assert_almost_equal(res, 1.) + + # -1 ** -1 possible special case + base = [np.array(-1, dt)[()] for dt in 'bhilq'] + for i1, i2 in itertools.product(base, exp): + if i1.dtype != np.uint64: + assert_raises(ValueError, operator.pow, i1, i2) + else: + res = operator.pow(i1, i2) + assert_(res.dtype.type is np.float64) + assert_almost_equal(res, -1.) + + # 2 ** -1 perhaps generic + base = [np.array(2, dt)[()] for dt in 'bhilqBHILQ'] + for i1, i2 in itertools.product(base, exp): + if i1.dtype != np.uint64: + assert_raises(ValueError, operator.pow, i1, i2) + else: + res = operator.pow(i1, i2) + assert_(res.dtype.type is np.float64) + assert_almost_equal(res, .5) + + def test_mixed_types(self): + typelist = [np.int8, np.int16, np.float16, + np.float32, np.float64, np.int8, + np.int16, np.int32, np.int64] + for t1 in typelist: + for t2 in typelist: + a = t1(3) + b = t2(2) + result = a**b + msg = f"error with {t1!r} and {t2!r}:got {result!r}, expected {9!r}" + if np.issubdtype(np.dtype(result), np.integer): + assert_(result == 9, msg) + else: + assert_almost_equal(result, 9, err_msg=msg) + + def test_modular_power(self): + # modular power is not implemented, so ensure it errors + a = 5 + b = 4 + c = 10 + expected = pow(a, b, c) # noqa: F841 + for t in (np.int32, np.float32, np.complex64): + # note that 3-operand power only dispatches on the first argument + assert_raises(TypeError, operator.pow, t(a), b, c) + assert_raises(TypeError, operator.pow, np.array(t(a)), b, c) + + +def floordiv_and_mod(x, y): + return (x // y, x % y) + + +def _signs(dt): + if dt in np.typecodes['UnsignedInteger']: + return (+1,) + else: + return (+1, -1) + + +class TestModulus: + + def test_modulus_basic(self): + dt = np.typecodes['AllInteger'] + np.typecodes['Float'] + for op in [floordiv_and_mod, divmod]: + for dt1, dt2 in itertools.product(dt, dt): + for sg1, sg2 in itertools.product(_signs(dt1), _signs(dt2)): + fmt = 'op: %s, dt1: %s, dt2: %s, sg1: %s, sg2: %s' + msg = fmt % (op.__name__, dt1, dt2, sg1, sg2) + a = np.array(sg1 * 71, dtype=dt1)[()] + b = np.array(sg2 * 19, dtype=dt2)[()] + div, rem = op(a, b) + assert_equal(div * b + rem, a, err_msg=msg) + if sg2 == -1: + assert_(b < rem <= 0, msg) + else: + assert_(b > rem >= 0, msg) + + def test_float_modulus_exact(self): + # test that float results are exact for small integers. This also + # holds for the same integers scaled by powers of two. + nlst = list(range(-127, 0)) + plst = list(range(1, 128)) + dividend = nlst + [0] + plst + divisor = nlst + plst + arg = list(itertools.product(dividend, divisor)) + tgt = [divmod(*t) for t in arg] + + a, b = np.array(arg, dtype=int).T + # convert exact integer results from Python to float so that + # signed zero can be used, it is checked. + tgtdiv, tgtrem = np.array(tgt, dtype=float).T + tgtdiv = np.where((tgtdiv == 0.0) & ((b < 0) ^ (a < 0)), -0.0, tgtdiv) + tgtrem = np.where((tgtrem == 0.0) & (b < 0), -0.0, tgtrem) + + for op in [floordiv_and_mod, divmod]: + for dt in np.typecodes['Float']: + msg = f'op: {op.__name__}, dtype: {dt}' + fa = a.astype(dt) + fb = b.astype(dt) + # use list comprehension so a_ and b_ are scalars + div, rem = zip(*[op(a_, b_) for a_, b_ in zip(fa, fb)]) + assert_equal(div, tgtdiv, err_msg=msg) + assert_equal(rem, tgtrem, err_msg=msg) + + def test_float_modulus_roundoff(self): + # gh-6127 + dt = np.typecodes['Float'] + for op in [floordiv_and_mod, divmod]: + for dt1, dt2 in itertools.product(dt, dt): + for sg1, sg2 in itertools.product((+1, -1), (+1, -1)): + fmt = 'op: %s, dt1: %s, dt2: %s, sg1: %s, sg2: %s' + msg = fmt % (op.__name__, dt1, dt2, sg1, sg2) + a = np.array(sg1 * 78 * 6e-8, dtype=dt1)[()] + b = np.array(sg2 * 6e-8, dtype=dt2)[()] + div, rem = op(a, b) + # Equal assertion should hold when fmod is used + assert_equal(div * b + rem, a, err_msg=msg) + if sg2 == -1: + assert_(b < rem <= 0, msg) + else: + assert_(b > rem >= 0, msg) + + def test_float_modulus_corner_cases(self): + # Check remainder magnitude. + for dt in np.typecodes['Float']: + b = np.array(1.0, dtype=dt) + a = np.nextafter(np.array(0.0, dtype=dt), -b) + rem = operator.mod(a, b) + assert_(rem <= b, f'dt: {dt}') + rem = operator.mod(-a, -b) + assert_(rem >= -b, f'dt: {dt}') + + # Check nans, inf + with warnings.catch_warnings(), np.errstate(all='ignore'): + for dt in np.typecodes['Float']: + fone = np.array(1.0, dtype=dt) + fzer = np.array(0.0, dtype=dt) + finf = np.array(np.inf, dtype=dt) + fnan = np.array(np.nan, dtype=dt) + rem = operator.mod(fone, fzer) + assert_(np.isnan(rem), f'dt: {dt}') + # MSVC 2008 returns NaN here, so disable the check. + #rem = operator.mod(fone, finf) + #assert_(rem == fone, 'dt: %s' % dt) + rem = operator.mod(fone, fnan) + assert_(np.isnan(rem), f'dt: {dt}') + rem = operator.mod(finf, fone) + assert_(np.isnan(rem), f'dt: {dt}') + for op in [floordiv_and_mod, divmod]: + div, mod = op(fone, fzer) + assert_(np.isinf(div)) and assert_(np.isnan(mod)) + + def test_inplace_floordiv_handling(self): + # issue gh-12927 + # this only applies to in-place floordiv //=, because the output type + # promotes to float which does not fit + a = np.array([1, 2], np.int64) + b = np.array([1, 2], np.uint64) + with pytest.raises(TypeError, + match=r"Cannot cast ufunc 'floor_divide' output from"): + a //= b + +class TestComparison: + def test_comparision_different_types(self): + x = np.array(1) + y = np.array('s') + eq = x == y + neq = x != y + assert eq is np.bool_(False) + assert neq is np.bool_(True) + + +class TestComplexDivision: + def test_zero_division(self): + with np.errstate(all="ignore"): + for t in [np.complex64, np.complex128]: + a = t(0.0) + b = t(1.0) + assert_(np.isinf(b / a)) + b = t(complex(np.inf, np.inf)) + assert_(np.isinf(b / a)) + b = t(complex(np.inf, np.nan)) + assert_(np.isinf(b / a)) + b = t(complex(np.nan, np.inf)) + assert_(np.isinf(b / a)) + b = t(complex(np.nan, np.nan)) + assert_(np.isnan(b / a)) + b = t(0.) + assert_(np.isnan(b / a)) + + def test_signed_zeros(self): + with np.errstate(all="ignore"): + for t in [np.complex64, np.complex128]: + # tupled (numerator, denominator, expected) + # for testing as expected == numerator/denominator + data = ( + (( 0.0, -1.0), ( 0.0, 1.0), (-1.0, -0.0)), + (( 0.0, -1.0), ( 0.0, -1.0), ( 1.0, -0.0)), + (( 0.0, -1.0), (-0.0, -1.0), ( 1.0, 0.0)), + (( 0.0, -1.0), (-0.0, 1.0), (-1.0, 0.0)), + (( 0.0, 1.0), ( 0.0, -1.0), (-1.0, 0.0)), + (( 0.0, -1.0), ( 0.0, -1.0), ( 1.0, -0.0)), + ((-0.0, -1.0), ( 0.0, -1.0), ( 1.0, -0.0)), + ((-0.0, 1.0), ( 0.0, -1.0), (-1.0, -0.0)) + ) + for cases in data: + n = cases[0] + d = cases[1] + ex = cases[2] + result = t(complex(n[0], n[1])) / t(complex(d[0], d[1])) + # check real and imag parts separately to avoid comparison + # in array context, which does not account for signed zeros + assert_equal(result.real, ex[0]) + assert_equal(result.imag, ex[1]) + + def test_branches(self): + with np.errstate(all="ignore"): + for t in [np.complex64, np.complex128]: + # tupled (numerator, denominator, expected) + # for testing as expected == numerator/denominator + data = [] + + # trigger branch: real(fabs(denom)) > imag(fabs(denom)) + # followed by else condition as neither are == 0 + data.append((( 2.0, 1.0), ( 2.0, 1.0), (1.0, 0.0))) + + # trigger branch: real(fabs(denom)) > imag(fabs(denom)) + # followed by if condition as both are == 0 + # is performed in test_zero_division(), so this is skipped + + # trigger else if branch: real(fabs(denom)) < imag(fabs(denom)) + data.append(((1.0, 2.0), (1.0, 2.0), (1.0, 0.0))) + + for cases in data: + n = cases[0] + d = cases[1] + ex = cases[2] + result = t(complex(n[0], n[1])) / t(complex(d[0], d[1])) + # check real and imag parts separately to avoid comparison + # in array context, which does not account for signed zeros + assert_equal(result.real, ex[0]) + assert_equal(result.imag, ex[1]) + + +class TestConversion: + def test_int_from_long(self): + l = [1e6, 1e12, 1e18, -1e6, -1e12, -1e18] + li = [10**6, 10**12, 10**18, -10**6, -10**12, -10**18] + for T in [None, np.float64, np.int64]: + a = np.array(l, dtype=T) + assert_equal([int(_m) for _m in a], li) + + a = np.array(l[:3], dtype=np.uint64) + assert_equal([int(_m) for _m in a], li[:3]) + + def test_iinfo_long_values(self): + for code in 'bBhH': + with pytest.raises(OverflowError): + np.array(np.iinfo(code).max + 1, dtype=code) + + for code in np.typecodes['AllInteger']: + res = np.array(np.iinfo(code).max, dtype=code) + tgt = np.iinfo(code).max + assert_(res == tgt) + + for code in np.typecodes['AllInteger']: + res = np.dtype(code).type(np.iinfo(code).max) + tgt = np.iinfo(code).max + assert_(res == tgt) + + def test_int_raise_behaviour(self): + def overflow_error_func(dtype): + dtype(np.iinfo(dtype).max + 1) + + for code in [np.int_, np.uint, np.longlong, np.ulonglong]: + assert_raises(OverflowError, overflow_error_func, code) + + def test_int_from_infinite_longdouble(self): + # gh-627 + x = np.longdouble(np.inf) + assert_raises(OverflowError, int, x) + with pytest.warns(ComplexWarning): + x = np.clongdouble(np.inf) + assert_raises(OverflowError, int, x) + + @pytest.mark.skipif(not IS_PYPY, reason="Test is PyPy only (gh-9972)") + def test_int_from_infinite_longdouble___int__(self): + x = np.longdouble(np.inf) + assert_raises(OverflowError, x.__int__) + with pytest.warns(ComplexWarning): + x = np.clongdouble(np.inf) + assert_raises(OverflowError, x.__int__) + + @pytest.mark.skipif(np.finfo(np.double) == np.finfo(np.longdouble), + reason="long double is same as double") + @pytest.mark.skipif(platform.machine().startswith("ppc"), + reason="IBM double double") + def test_int_from_huge_longdouble(self): + # Produce a longdouble that would overflow a double, + # use exponent that avoids bug in Darwin pow function. + exp = np.finfo(np.double).maxexp - 1 + huge_ld = 2 * 1234 * np.longdouble(2) ** exp + huge_i = 2 * 1234 * 2 ** exp + assert_(huge_ld != np.inf) + assert_equal(int(huge_ld), huge_i) + + def test_int_from_longdouble(self): + x = np.longdouble(1.5) + assert_equal(int(x), 1) + x = np.longdouble(-10.5) + assert_equal(int(x), -10) + + def test_numpy_scalar_relational_operators(self): + # All integer + for dt1 in np.typecodes['AllInteger']: + assert_(1 > np.array(0, dtype=dt1)[()], f"type {dt1} failed") + assert_(not 1 < np.array(0, dtype=dt1)[()], f"type {dt1} failed") + + for dt2 in np.typecodes['AllInteger']: + assert_(np.array(1, dtype=dt1)[()] > np.array(0, dtype=dt2)[()], + f"type {dt1} and {dt2} failed") + assert_(not np.array(1, dtype=dt1)[()] < np.array(0, dtype=dt2)[()], + f"type {dt1} and {dt2} failed") + + # Unsigned integers + for dt1 in 'BHILQP': + assert_(-1 < np.array(1, dtype=dt1)[()], f"type {dt1} failed") + assert_(not -1 > np.array(1, dtype=dt1)[()], f"type {dt1} failed") + assert_(-1 != np.array(1, dtype=dt1)[()], f"type {dt1} failed") + + # unsigned vs signed + for dt2 in 'bhilqp': + assert_(np.array(1, dtype=dt1)[()] > np.array(-1, dtype=dt2)[()], + f"type {dt1} and {dt2} failed") + assert_(not np.array(1, dtype=dt1)[()] < np.array(-1, dtype=dt2)[()], + f"type {dt1} and {dt2} failed") + assert_(np.array(1, dtype=dt1)[()] != np.array(-1, dtype=dt2)[()], + f"type {dt1} and {dt2} failed") + + # Signed integers and floats + for dt1 in 'bhlqp' + np.typecodes['Float']: + assert_(1 > np.array(-1, dtype=dt1)[()], f"type {dt1} failed") + assert_(not 1 < np.array(-1, dtype=dt1)[()], f"type {dt1} failed") + assert_(-1 == np.array(-1, dtype=dt1)[()], f"type {dt1} failed") + + for dt2 in 'bhlqp' + np.typecodes['Float']: + assert_(np.array(1, dtype=dt1)[()] > np.array(-1, dtype=dt2)[()], + f"type {dt1} and {dt2} failed") + assert_(not np.array(1, dtype=dt1)[()] < np.array(-1, dtype=dt2)[()], + f"type {dt1} and {dt2} failed") + assert_(np.array(-1, dtype=dt1)[()] == np.array(-1, dtype=dt2)[()], + f"type {dt1} and {dt2} failed") + + def test_scalar_comparison_to_none(self): + # Scalars should just return False and not give a warnings. + # The comparisons are flagged by pep8, ignore that. + with warnings.catch_warnings(record=True) as w: + warnings.filterwarnings('always', '', FutureWarning) + assert_(not np.float32(1) == None) # noqa: E711 + assert_(not np.str_('test') == None) # noqa: E711 + # This is dubious (see below): + assert_(not np.datetime64('NaT') == None) # noqa: E711 + + assert_(np.float32(1) != None) # noqa: E711 + assert_(np.str_('test') != None) # noqa: E711 + # This is dubious (see below): + assert_(np.datetime64('NaT') != None) # noqa: E711 + assert_(len(w) == 0) + + # For documentation purposes, this is why the datetime is dubious. + # At the time of deprecation this was no behaviour change, but + # it has to be considered when the deprecations are done. + assert_(np.equal(np.datetime64('NaT'), None)) + + +#class TestRepr: +# def test_repr(self): +# for t in types: +# val = t(1197346475.0137341) +# val_repr = repr(val) +# val2 = eval(val_repr) +# assert_equal( val, val2 ) + + +class TestRepr: + def _test_type_repr(self, t): + finfo = np.finfo(t) + last_fraction_bit_idx = finfo.nexp + finfo.nmant + last_exponent_bit_idx = finfo.nexp + storage_bytes = np.dtype(t).itemsize * 8 + # could add some more types to the list below + for which in ['small denorm', 'small norm']: + # Values from https://en.wikipedia.org/wiki/IEEE_754 + constr = np.array([0x00] * storage_bytes, dtype=np.uint8) + if which == 'small denorm': + byte = last_fraction_bit_idx // 8 + bytebit = 7 - (last_fraction_bit_idx % 8) + constr[byte] = 1 << bytebit + elif which == 'small norm': + byte = last_exponent_bit_idx // 8 + bytebit = 7 - (last_exponent_bit_idx % 8) + constr[byte] = 1 << bytebit + else: + raise ValueError('hmm') + val = constr.view(t)[0] + val_repr = repr(val) + val2 = t(eval(val_repr)) + if not (val2 == 0 and val < 1e-100): + assert_equal(val, val2) + + def test_float_repr(self): + # long double test cannot work, because eval goes through a python + # float + for t in [np.float32, np.float64]: + self._test_type_repr(t) + + +if not IS_PYPY: + # sys.getsizeof() is not valid on PyPy + class TestSizeOf: + + def test_equal_nbytes(self): + for type in types: + x = type(0) + assert_(sys.getsizeof(x) > x.nbytes) + + def test_error(self): + d = np.float32() + assert_raises(TypeError, d.__sizeof__, "a") + + +class TestMultiply: + def test_seq_repeat(self): + # Test that basic sequences get repeated when multiplied with + # numpy integers. And errors are raised when multiplied with others. + # Some of this behaviour may be controversial and could be open for + # change. + accepted_types = set(np.typecodes["AllInteger"]) + deprecated_types = {'?'} + forbidden_types = ( + set(np.typecodes["All"]) - accepted_types - deprecated_types) + forbidden_types -= {'V'} # can't default-construct void scalars + + for seq_type in (list, tuple): + seq = seq_type([1, 2, 3]) + for numpy_type in accepted_types: + i = np.dtype(numpy_type).type(2) + assert_equal(seq * i, seq * int(i)) + assert_equal(i * seq, int(i) * seq) + + for numpy_type in deprecated_types: + i = np.dtype(numpy_type).type() + with assert_raises(TypeError): + operator.mul(seq, i) + + for numpy_type in forbidden_types: + i = np.dtype(numpy_type).type() + assert_raises(TypeError, operator.mul, seq, i) + assert_raises(TypeError, operator.mul, i, seq) + + def test_no_seq_repeat_basic_array_like(self): + # Test that an array-like which does not know how to be multiplied + # does not attempt sequence repeat (raise TypeError). + # See also gh-7428. + class ArrayLike: + def __init__(self, arr): + self.arr = arr + + def __array__(self, dtype=None, copy=None): + return self.arr + + # Test for simple ArrayLike above and memoryviews (original report) + for arr_like in (ArrayLike(np.ones(3)), memoryview(np.ones(3))): + assert_array_equal(arr_like * np.float32(3.), np.full(3, 3.)) + assert_array_equal(np.float32(3.) * arr_like, np.full(3, 3.)) + assert_array_equal(arr_like * np.int_(3), np.full(3, 3)) + assert_array_equal(np.int_(3) * arr_like, np.full(3, 3)) + + +class TestNegative: + def test_exceptions(self): + a = np.ones((), dtype=np.bool)[()] + assert_raises(TypeError, operator.neg, a) + + def test_result(self): + types = np.typecodes['AllInteger'] + np.typecodes['AllFloat'] + with warnings.catch_warnings(): + warnings.simplefilter('ignore', RuntimeWarning) + for dt in types: + a = np.ones((), dtype=dt)[()] + if dt in np.typecodes['UnsignedInteger']: + st = np.dtype(dt).type + max = st(np.iinfo(dt).max) + assert_equal(operator.neg(a), max) + else: + assert_equal(operator.neg(a) + a, 0) + +class TestSubtract: + def test_exceptions(self): + a = np.ones((), dtype=np.bool)[()] + assert_raises(TypeError, operator.sub, a, a) + + def test_result(self): + types = np.typecodes['AllInteger'] + np.typecodes['AllFloat'] + with warnings.catch_warnings(): + warnings.simplefilter('ignore', RuntimeWarning) + for dt in types: + a = np.ones((), dtype=dt)[()] + assert_equal(operator.sub(a, a), 0) + + +class TestAbs: + def _test_abs_func(self, absfunc, test_dtype): + x = test_dtype(-1.5) + assert_equal(absfunc(x), 1.5) + x = test_dtype(0.0) + res = absfunc(x) + # assert_equal() checks zero signedness + assert_equal(res, 0.0) + x = test_dtype(-0.0) + res = absfunc(x) + assert_equal(res, 0.0) + + x = test_dtype(np.finfo(test_dtype).max) + assert_equal(absfunc(x), x.real) + + with warnings.catch_warnings(): + warnings.simplefilter('ignore', UserWarning) + x = test_dtype(np.finfo(test_dtype).tiny) + assert_equal(absfunc(x), x.real) + + x = test_dtype(np.finfo(test_dtype).min) + assert_equal(absfunc(x), -x.real) + + @pytest.mark.parametrize("dtype", floating_types + complex_floating_types) + def test_builtin_abs(self, dtype): + if ( + sys.platform == "cygwin" and dtype == np.clongdouble and + ( + _pep440.parse(platform.release().split("-")[0]) + < _pep440.Version("3.3.0") + ) + ): + pytest.xfail( + reason="absl is computed in double precision on cygwin < 3.3" + ) + self._test_abs_func(abs, dtype) + + @pytest.mark.parametrize("dtype", floating_types + complex_floating_types) + def test_numpy_abs(self, dtype): + if ( + sys.platform == "cygwin" and dtype == np.clongdouble and + ( + _pep440.parse(platform.release().split("-")[0]) + < _pep440.Version("3.3.0") + ) + ): + pytest.xfail( + reason="absl is computed in double precision on cygwin < 3.3" + ) + self._test_abs_func(np.abs, dtype) + +class TestBitShifts: + + @pytest.mark.parametrize('type_code', np.typecodes['AllInteger']) + @pytest.mark.parametrize('op', + [operator.rshift, operator.lshift], ids=['>>', '<<']) + def test_shift_all_bits(self, type_code, op): + """Shifts where the shift amount is the width of the type or wider """ + # gh-2449 + dt = np.dtype(type_code) + nbits = dt.itemsize * 8 + for val in [5, -5]: + for shift in [nbits, nbits + 4]: + val_scl = np.array(val).astype(dt)[()] + shift_scl = dt.type(shift) + res_scl = op(val_scl, shift_scl) + if val_scl < 0 and op is operator.rshift: + # sign bit is preserved + assert_equal(res_scl, -1) + else: + assert_equal(res_scl, 0) + + # Result on scalars should be the same as on arrays + val_arr = np.array([val_scl] * 32, dtype=dt) + shift_arr = np.array([shift] * 32, dtype=dt) + res_arr = op(val_arr, shift_arr) + assert_equal(res_arr, res_scl) + + +class TestHash: + @pytest.mark.parametrize("type_code", np.typecodes['AllInteger']) + def test_integer_hashes(self, type_code): + scalar = np.dtype(type_code).type + for i in range(128): + assert hash(i) == hash(scalar(i)) + + @pytest.mark.parametrize("type_code", np.typecodes['AllFloat']) + def test_float_and_complex_hashes(self, type_code): + scalar = np.dtype(type_code).type + for val in [np.pi, np.inf, 3, 6.]: + numpy_val = scalar(val) + # Cast back to Python, in case the NumPy scalar has less precision + if numpy_val.dtype.kind == 'c': + val = complex(numpy_val) + else: + val = float(numpy_val) + assert val == numpy_val + assert hash(val) == hash(numpy_val) + + if hash(float(np.nan)) != hash(float(np.nan)): + # If Python distinguishes different NaNs we do so too (gh-18833) + assert hash(scalar(np.nan)) != hash(scalar(np.nan)) + + @pytest.mark.parametrize("type_code", np.typecodes['Complex']) + def test_complex_hashes(self, type_code): + # Test some complex valued hashes specifically: + scalar = np.dtype(type_code).type + for val in [np.pi + 1j, np.inf - 3j, 3j, 6. + 1j]: + numpy_val = scalar(val) + assert hash(complex(numpy_val)) == hash(numpy_val) + + +@contextlib.contextmanager +def recursionlimit(n): + o = sys.getrecursionlimit() + try: + sys.setrecursionlimit(n) + yield + finally: + sys.setrecursionlimit(o) + + +@given(sampled_from(objecty_things), + sampled_from(binary_operators_for_scalar_ints), + sampled_from(types + [rational])) +@pytest.mark.thread_unsafe(reason="sets recursion limit globally") +def test_operator_object_left(o, op, type_): + try: + with recursionlimit(200): + op(o, type_(1)) + except TypeError: + pass + + +@given(sampled_from(objecty_things), + sampled_from(binary_operators_for_scalar_ints), + sampled_from(types + [rational])) +@pytest.mark.thread_unsafe(reason="sets recursion limit globally") +def test_operator_object_right(o, op, type_): + try: + with recursionlimit(200): + op(type_(1), o) + except TypeError: + pass + + +@given(sampled_from(binary_operators_for_scalars), + sampled_from(types), + sampled_from(types)) +def test_operator_scalars(op, type1, type2): + try: + op(type1(1), type2(1)) + except TypeError: + pass + + +@pytest.mark.parametrize("op", binary_operators_for_scalars) +@pytest.mark.parametrize("sctype", [np.longdouble, np.clongdouble]) +def test_longdouble_operators_with_obj(sctype, op): + # This is/used to be tricky, because NumPy generally falls back to + # using the ufunc via `np.asarray()`, this effectively might do: + # longdouble + None + # -> asarray(longdouble) + np.array(None, dtype=object) + # -> asarray(longdouble).astype(object) + np.array(None, dtype=object) + # And after getting the scalars in the inner loop: + # -> longdouble + None + # + # That would recurse infinitely. Other scalars return the python object + # on cast, so this type of things works OK. + # + # As of NumPy 2.1, this has been consolidated into the np.generic binops + # and now checks `.item()`. That also allows the below path to work now. + try: + op(sctype(3), None) + except TypeError: + pass + try: + op(None, sctype(3)) + except TypeError: + pass + + +@pytest.mark.parametrize("op", [operator.add, operator.pow, operator.sub]) +@pytest.mark.parametrize("sctype", [np.longdouble, np.clongdouble]) +def test_longdouble_with_arrlike(sctype, op): + # As of NumPy 2.1, longdouble behaves like other types and can coerce + # e.g. lists. (Not necessarily better, but consistent.) + assert_array_equal(op(sctype(3), [1, 2]), op(3, np.array([1, 2]))) + assert_array_equal(op([1, 2], sctype(3)), op(np.array([1, 2]), 3)) + + +@pytest.mark.parametrize("op", binary_operators_for_scalars) +@pytest.mark.parametrize("sctype", [np.longdouble, np.clongdouble]) +@np.errstate(all="ignore") +def test_longdouble_operators_with_large_int(sctype, op): + # (See `test_longdouble_operators_with_obj` for why longdouble is special) + # NEP 50 means that the result is clearly a (c)longdouble here: + if sctype == np.clongdouble and op in [operator.mod, operator.floordiv]: + # The above operators are not support for complex though... + with pytest.raises(TypeError): + op(sctype(3), 2**64) + with pytest.raises(TypeError): + op(sctype(3), 2**64) + else: + assert op(sctype(3), -2**64) == op(sctype(3), sctype(-2**64)) + assert op(2**64, sctype(3)) == op(sctype(2**64), sctype(3)) + + +@pytest.mark.parametrize("dtype", np.typecodes["AllInteger"]) +@pytest.mark.parametrize("operation", [ + lambda min, max: max + max, + lambda min, max: min - max, + lambda min, max: max * max], ids=["+", "-", "*"]) +def test_scalar_integer_operation_overflow(dtype, operation): + st = np.dtype(dtype).type + min = st(np.iinfo(dtype).min) + max = st(np.iinfo(dtype).max) + + with pytest.warns(RuntimeWarning, match="overflow encountered"): + operation(min, max) + + +@pytest.mark.parametrize("dtype", np.typecodes["Integer"]) +@pytest.mark.parametrize("operation", [ + lambda min, neg_1: -min, + lambda min, neg_1: abs(min), + lambda min, neg_1: min * neg_1, + pytest.param(lambda min, neg_1: min // neg_1, + marks=pytest.mark.skip(reason="broken on some platforms"))], + ids=["neg", "abs", "*", "//"]) +def test_scalar_signed_integer_overflow(dtype, operation): + # The minimum signed integer can "overflow" for some additional operations + st = np.dtype(dtype).type + min = st(np.iinfo(dtype).min) + neg_1 = st(-1) + + with pytest.warns(RuntimeWarning, match="overflow encountered"): + operation(min, neg_1) + + +@pytest.mark.parametrize("dtype", np.typecodes["UnsignedInteger"]) +def test_scalar_unsigned_integer_overflow(dtype): + val = np.dtype(dtype).type(8) + with pytest.warns(RuntimeWarning, match="overflow encountered"): + -val + + zero = np.dtype(dtype).type(0) + -zero # does not warn + +@pytest.mark.parametrize("dtype", np.typecodes["AllInteger"]) +@pytest.mark.parametrize("operation", [ + lambda val, zero: val // zero, + lambda val, zero: val % zero, ], ids=["//", "%"]) +def test_scalar_integer_operation_divbyzero(dtype, operation): + st = np.dtype(dtype).type + val = st(100) + zero = st(0) + + with pytest.warns(RuntimeWarning, match="divide by zero"): + operation(val, zero) + + +ops_with_names = [ + ("__lt__", "__gt__", operator.lt, True), + ("__le__", "__ge__", operator.le, True), + ("__eq__", "__eq__", operator.eq, True), + # Note __op__ and __rop__ may be identical here: + ("__ne__", "__ne__", operator.ne, True), + ("__gt__", "__lt__", operator.gt, True), + ("__ge__", "__le__", operator.ge, True), + ("__floordiv__", "__rfloordiv__", operator.floordiv, False), + ("__truediv__", "__rtruediv__", operator.truediv, False), + ("__add__", "__radd__", operator.add, False), + ("__mod__", "__rmod__", operator.mod, False), + ("__mul__", "__rmul__", operator.mul, False), + ("__pow__", "__rpow__", operator.pow, False), + ("__sub__", "__rsub__", operator.sub, False), +] + + +@pytest.mark.parametrize(["__op__", "__rop__", "op", "cmp"], ops_with_names) +@pytest.mark.parametrize("sctype", [np.float32, np.float64, np.longdouble]) +def test_subclass_deferral(sctype, __op__, __rop__, op, cmp): + """ + This test covers scalar subclass deferral. Note that this is exceedingly + complicated, especially since it tends to fall back to the array paths and + these additionally add the "array priority" mechanism. + + The behaviour was modified subtly in 1.22 (to make it closer to how Python + scalars work). Due to its complexity and the fact that subclassing NumPy + scalars is probably a bad idea to begin with. There is probably room + for adjustments here. + """ + class myf_simple1(sctype): + pass + + class myf_simple2(sctype): + pass + + def op_func(self, other): + return __op__ + + def rop_func(self, other): + return __rop__ + + myf_op = type("myf_op", (sctype,), {__op__: op_func, __rop__: rop_func}) + + # inheritance has to override, or this is correctly lost: + res = op(myf_simple1(1), myf_simple2(2)) + assert type(res) == sctype or type(res) == np.bool + assert op(myf_simple1(1), myf_simple2(2)) == op(1, 2) # inherited + + # Two independent subclasses do not really define an order. This could + # be attempted, but we do not since Python's `int` does neither: + assert op(myf_op(1), myf_simple1(2)) == __op__ + assert op(myf_simple1(1), myf_op(2)) == op(1, 2) # inherited + + +def test_longdouble_complex(): + # Simple test to check longdouble and complex combinations, since these + # need to go through promotion, which longdouble needs to be careful about. + x = np.longdouble(1) + assert x + 1j == 1 + 1j + assert 1j + x == 1 + 1j + + +@pytest.mark.parametrize(["__op__", "__rop__", "op", "cmp"], ops_with_names) +@pytest.mark.parametrize("subtype", [float, int, complex, np.float16]) +def test_pyscalar_subclasses(subtype, __op__, __rop__, op, cmp): + # This tests that python scalar subclasses behave like a float64 (if they + # don't override it). + # In an earlier version of NEP 50, they behaved like the Python buildins. + def op_func(self, other): + return __op__ + + def rop_func(self, other): + return __rop__ + + # Check that deferring is indicated using `__array_ufunc__`: + myt = type("myt", (subtype,), + {__op__: op_func, __rop__: rop_func, "__array_ufunc__": None}) + + # Just like normally, we should never presume we can modify the float. + assert op(myt(1), np.float64(2)) == __op__ + assert op(np.float64(1), myt(2)) == __rop__ + + if op in {operator.mod, operator.floordiv} and subtype == complex: + return # module is not support for complex. Do not test. + + if __rop__ == __op__: + return + + # When no deferring is indicated, subclasses are handled normally. + myt = type("myt", (subtype,), {__rop__: rop_func}) + behaves_like = lambda x: np.array(subtype(x))[()] + + # Check for float32, as a float subclass float64 may behave differently + res = op(myt(1), np.float16(2)) + expected = op(behaves_like(1), np.float16(2)) + assert res == expected + assert type(res) == type(expected) + res = op(np.float32(2), myt(1)) + expected = op(np.float32(2), behaves_like(1)) + assert res == expected + assert type(res) == type(expected) + + # Same check for longdouble (compare via dtype to accept float64 when + # longdouble has the identical size), which is currently not perfectly + # consistent. + res = op(myt(1), np.longdouble(2)) + expected = op(behaves_like(1), np.longdouble(2)) + assert res == expected + assert np.dtype(type(res)) == np.dtype(type(expected)) + res = op(np.float32(2), myt(1)) + expected = op(np.float32(2), behaves_like(1)) + assert res == expected + assert np.dtype(type(res)) == np.dtype(type(expected)) + + +def test_truediv_int(): + # This should work, as the result is float: + assert np.uint8(3) / 123454 == np.float64(3) / 123454 + + +@pytest.mark.slow +@pytest.mark.parametrize("op", + # TODO: Power is a bit special, but here mostly bools seem to behave oddly + [op for op in binary_operators_for_scalars if op is not operator.pow]) +@pytest.mark.parametrize("sctype", types) +@pytest.mark.parametrize("other_type", [float, int, complex]) +@pytest.mark.parametrize("rop", [True, False]) +def test_scalar_matches_array_op_with_pyscalar(op, sctype, other_type, rop): + # Check that the ufunc path matches by coercing to an array explicitly + val1 = sctype(2) + val2 = other_type(2) + + if rop: + _op = op + op = lambda x, y: _op(y, x) + + try: + res = op(val1, val2) + except TypeError: + try: + expected = op(np.asarray(val1), val2) + raise AssertionError("ufunc didn't raise.") + except TypeError: + return + else: + expected = op(np.asarray(val1), val2) + + # Note that we only check dtype equivalency, as ufuncs may pick the lower + # dtype if they are equivalent. + assert res == expected + if isinstance(val1, float) and other_type is complex and rop: + # Python complex accepts float subclasses, so we don't get a chance + # and the result may be a Python complex (thus, the `np.array()``) + assert np.array(res).dtype == expected.dtype + else: + assert res.dtype == expected.dtype diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_scalarprint.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_scalarprint.py new file mode 100644 index 0000000000000000000000000000000000000000..38ed7780f2e65183dcc856f8b6e3dad466271bc2 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_scalarprint.py @@ -0,0 +1,403 @@ +""" Test printing of scalar types. + +""" +import platform + +import pytest + +import numpy as np +from numpy.testing import IS_MUSL, assert_, assert_equal, assert_raises + + +class TestRealScalars: + def test_str(self): + svals = [0.0, -0.0, 1, -1, np.inf, -np.inf, np.nan] + styps = [np.float16, np.float32, np.float64, np.longdouble] + wanted = [ + ['0.0', '0.0', '0.0', '0.0' ], # noqa: E202 + ['-0.0', '-0.0', '-0.0', '-0.0'], + ['1.0', '1.0', '1.0', '1.0' ], # noqa: E202 + ['-1.0', '-1.0', '-1.0', '-1.0'], + ['inf', 'inf', 'inf', 'inf' ], # noqa: E202 + ['-inf', '-inf', '-inf', '-inf'], + ['nan', 'nan', 'nan', 'nan' ]] # noqa: E202 + + for wants, val in zip(wanted, svals): + for want, styp in zip(wants, styps): + msg = f'for str({np.dtype(styp).name}({val!r}))' + assert_equal(str(styp(val)), want, err_msg=msg) + + def test_scalar_cutoffs(self): + # test that both the str and repr of np.float64 behaves + # like python floats in python3. + def check(v): + assert_equal(str(np.float64(v)), str(v)) + assert_equal(str(np.float64(v)), repr(v)) + assert_equal(repr(np.float64(v)), f"np.float64({v!r})") + assert_equal(repr(np.float64(v)), f"np.float64({v})") + + # check we use the same number of significant digits + check(1.12345678901234567890) + check(0.0112345678901234567890) + + # check switch from scientific output to positional and back + check(1e-5) + check(1e-4) + check(1e15) + check(1e16) + + test_cases_gh_28679 = [ + (np.half, -0.000099, "-9.9e-05"), + (np.half, 0.0001, "0.0001"), + (np.half, 999, "999.0"), + (np.half, -1000, "-1e+03"), + (np.single, 0.000099, "9.9e-05"), + (np.single, -0.000100001, "-0.000100001"), + (np.single, 999999, "999999.0"), + (np.single, -1000000, "-1e+06") + ] + + @pytest.mark.parametrize("dtype, input_val, expected_str", test_cases_gh_28679) + def test_gh_28679(self, dtype, input_val, expected_str): + # test cutoff to exponent notation for half and single + assert_equal(str(dtype(input_val)), expected_str) + + test_cases_legacy_2_2 = [ + (np.half(65504), "65500.0"), + (np.single(1.e15), "1000000000000000.0"), + (np.single(1.e16), "1e+16"), + ] + + @pytest.mark.parametrize("input_val, expected_str", test_cases_legacy_2_2) + def test_legacy_2_2_mode(self, input_val, expected_str): + # test legacy cutoff to exponent notation for half and single + with np.printoptions(legacy='2.2'): + assert_equal(str(input_val), expected_str) + + def test_dragon4(self): + # these tests are adapted from Ryan Juckett's dragon4 implementation, + # see dragon4.c for details. + + fpos32 = lambda x, **k: np.format_float_positional(np.float32(x), **k) + fsci32 = lambda x, **k: np.format_float_scientific(np.float32(x), **k) + fpos64 = lambda x, **k: np.format_float_positional(np.float64(x), **k) + fsci64 = lambda x, **k: np.format_float_scientific(np.float64(x), **k) + + preckwd = lambda prec: {'unique': False, 'precision': prec} + + assert_equal(fpos32('1.0'), "1.") + assert_equal(fsci32('1.0'), "1.e+00") + assert_equal(fpos32('10.234'), "10.234") + assert_equal(fpos32('-10.234'), "-10.234") + assert_equal(fsci32('10.234'), "1.0234e+01") + assert_equal(fsci32('-10.234'), "-1.0234e+01") + assert_equal(fpos32('1000.0'), "1000.") + assert_equal(fpos32('1.0', precision=0), "1.") + assert_equal(fsci32('1.0', precision=0), "1.e+00") + assert_equal(fpos32('10.234', precision=0), "10.") + assert_equal(fpos32('-10.234', precision=0), "-10.") + assert_equal(fsci32('10.234', precision=0), "1.e+01") + assert_equal(fsci32('-10.234', precision=0), "-1.e+01") + assert_equal(fpos32('10.234', precision=2), "10.23") + assert_equal(fsci32('-10.234', precision=2), "-1.02e+01") + assert_equal(fsci64('9.9999999999999995e-08', **preckwd(16)), + '9.9999999999999995e-08') + assert_equal(fsci64('9.8813129168249309e-324', **preckwd(16)), + '9.8813129168249309e-324') + assert_equal(fsci64('9.9999999999999694e-311', **preckwd(16)), + '9.9999999999999694e-311') + + # test rounding + # 3.1415927410 is closest float32 to np.pi + assert_equal(fpos32('3.14159265358979323846', **preckwd(10)), + "3.1415927410") + assert_equal(fsci32('3.14159265358979323846', **preckwd(10)), + "3.1415927410e+00") + assert_equal(fpos64('3.14159265358979323846', **preckwd(10)), + "3.1415926536") + assert_equal(fsci64('3.14159265358979323846', **preckwd(10)), + "3.1415926536e+00") + # 299792448 is closest float32 to 299792458 + assert_equal(fpos32('299792458.0', **preckwd(5)), "299792448.00000") + assert_equal(fsci32('299792458.0', **preckwd(5)), "2.99792e+08") + assert_equal(fpos64('299792458.0', **preckwd(5)), "299792458.00000") + assert_equal(fsci64('299792458.0', **preckwd(5)), "2.99792e+08") + + assert_equal(fpos32('3.14159265358979323846', **preckwd(25)), + "3.1415927410125732421875000") + assert_equal(fpos64('3.14159265358979323846', **preckwd(50)), + "3.14159265358979311599796346854418516159057617187500") + assert_equal(fpos64('3.14159265358979323846'), "3.141592653589793") + + # smallest numbers + assert_equal(fpos32(0.5**(126 + 23), unique=False, precision=149), + "0.00000000000000000000000000000000000000000000140129846432" + "4817070923729583289916131280261941876515771757068283889791" + "08268586060148663818836212158203125") + + assert_equal(fpos64(5e-324, unique=False, precision=1074), + "0.00000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000000000000000000000000000" + "0000000000000000000000000000000000049406564584124654417656" + "8792868221372365059802614324764425585682500675507270208751" + "8652998363616359923797965646954457177309266567103559397963" + "9877479601078187812630071319031140452784581716784898210368" + "8718636056998730723050006387409153564984387312473397273169" + "6151400317153853980741262385655911710266585566867681870395" + "6031062493194527159149245532930545654440112748012970999954" + "1931989409080416563324524757147869014726780159355238611550" + "1348035264934720193790268107107491703332226844753335720832" + "4319360923828934583680601060115061698097530783422773183292" + "4790498252473077637592724787465608477820373446969953364701" + "7972677717585125660551199131504891101451037862738167250955" + "8373897335989936648099411642057026370902792427675445652290" + "87538682506419718265533447265625") + + # largest numbers + f32x = np.finfo(np.float32).max + assert_equal(fpos32(f32x, **preckwd(0)), + "340282346638528859811704183484516925440.") + assert_equal(fpos64(np.finfo(np.float64).max, **preckwd(0)), + "1797693134862315708145274237317043567980705675258449965989" + "1747680315726078002853876058955863276687817154045895351438" + "2464234321326889464182768467546703537516986049910576551282" + "0762454900903893289440758685084551339423045832369032229481" + "6580855933212334827479782620414472316873817718091929988125" + "0404026184124858368.") + # Warning: In unique mode only the integer digits necessary for + # uniqueness are computed, the rest are 0. + assert_equal(fpos32(f32x), + "340282350000000000000000000000000000000.") + + # Further tests of zero-padding vs rounding in different combinations + # of unique, fractional, precision, min_digits + # precision can only reduce digits, not add them. + # min_digits can only extend digits, not reduce them. + assert_equal(fpos32(f32x, unique=True, fractional=True, precision=0), + "340282350000000000000000000000000000000.") + assert_equal(fpos32(f32x, unique=True, fractional=True, precision=4), + "340282350000000000000000000000000000000.") + assert_equal(fpos32(f32x, unique=True, fractional=True, min_digits=0), + "340282346638528859811704183484516925440.") + assert_equal(fpos32(f32x, unique=True, fractional=True, min_digits=4), + "340282346638528859811704183484516925440.0000") + assert_equal(fpos32(f32x, unique=True, fractional=True, + min_digits=4, precision=4), + "340282346638528859811704183484516925440.0000") + assert_raises(ValueError, fpos32, f32x, unique=True, fractional=False, + precision=0) + assert_equal(fpos32(f32x, unique=True, fractional=False, precision=4), + "340300000000000000000000000000000000000.") + assert_equal(fpos32(f32x, unique=True, fractional=False, precision=20), + "340282350000000000000000000000000000000.") + assert_equal(fpos32(f32x, unique=True, fractional=False, min_digits=4), + "340282350000000000000000000000000000000.") + assert_equal(fpos32(f32x, unique=True, fractional=False, + min_digits=20), + "340282346638528859810000000000000000000.") + assert_equal(fpos32(f32x, unique=True, fractional=False, + min_digits=15), + "340282346638529000000000000000000000000.") + assert_equal(fpos32(f32x, unique=False, fractional=False, precision=4), + "340300000000000000000000000000000000000.") + # test that unique rounding is preserved when precision is supplied + # but no extra digits need to be printed (gh-18609) + a = np.float64.fromhex('-1p-97') + assert_equal(fsci64(a, unique=True), '-6.310887241768095e-30') + assert_equal(fsci64(a, unique=False, precision=15), + '-6.310887241768094e-30') + assert_equal(fsci64(a, unique=True, precision=15), + '-6.310887241768095e-30') + assert_equal(fsci64(a, unique=True, min_digits=15), + '-6.310887241768095e-30') + assert_equal(fsci64(a, unique=True, precision=15, min_digits=15), + '-6.310887241768095e-30') + # adds/remove digits in unique mode with unbiased rnding + assert_equal(fsci64(a, unique=True, precision=14), + '-6.31088724176809e-30') + assert_equal(fsci64(a, unique=True, min_digits=16), + '-6.3108872417680944e-30') + assert_equal(fsci64(a, unique=True, precision=16), + '-6.310887241768095e-30') + assert_equal(fsci64(a, unique=True, min_digits=14), + '-6.310887241768095e-30') + # test min_digits in unique mode with different rounding cases + assert_equal(fsci64('1e120', min_digits=3), '1.000e+120') + assert_equal(fsci64('1e100', min_digits=3), '1.000e+100') + + # test trailing zeros + assert_equal(fpos32('1.0', unique=False, precision=3), "1.000") + assert_equal(fpos64('1.0', unique=False, precision=3), "1.000") + assert_equal(fsci32('1.0', unique=False, precision=3), "1.000e+00") + assert_equal(fsci64('1.0', unique=False, precision=3), "1.000e+00") + assert_equal(fpos32('1.5', unique=False, precision=3), "1.500") + assert_equal(fpos64('1.5', unique=False, precision=3), "1.500") + assert_equal(fsci32('1.5', unique=False, precision=3), "1.500e+00") + assert_equal(fsci64('1.5', unique=False, precision=3), "1.500e+00") + # gh-10713 + assert_equal(fpos64('324', unique=False, precision=5, + fractional=False), "324.00") + + available_float_dtypes = [np.float16, np.float32, np.float64, np.float128]\ + if hasattr(np, 'float128') else [np.float16, np.float32, np.float64] + + @pytest.mark.parametrize("tp", available_float_dtypes) + def test_dragon4_positional_interface(self, tp): + # test is flaky for musllinux on np.float128 + if IS_MUSL and tp == np.float128: + pytest.skip("Skipping flaky test of float128 on musllinux") + + fpos = np.format_float_positional + + # test padding + assert_equal(fpos(tp('1.0'), pad_left=4, pad_right=4), " 1. ") + assert_equal(fpos(tp('-1.0'), pad_left=4, pad_right=4), " -1. ") + assert_equal(fpos(tp('-10.2'), + pad_left=4, pad_right=4), " -10.2 ") + + # test fixed (non-unique) mode + assert_equal(fpos(tp('1.0'), unique=False, precision=4), "1.0000") + + @pytest.mark.parametrize("tp", available_float_dtypes) + def test_dragon4_positional_interface_trim(self, tp): + # test is flaky for musllinux on np.float128 + if IS_MUSL and tp == np.float128: + pytest.skip("Skipping flaky test of float128 on musllinux") + + fpos = np.format_float_positional + # test trimming + # trim of 'k' or '.' only affects non-unique mode, since unique + # mode will not output trailing 0s. + assert_equal(fpos(tp('1.'), unique=False, precision=4, trim='k'), + "1.0000") + + assert_equal(fpos(tp('1.'), unique=False, precision=4, trim='.'), + "1.") + assert_equal(fpos(tp('1.2'), unique=False, precision=4, trim='.'), + "1.2" if tp != np.float16 else "1.2002") + + assert_equal(fpos(tp('1.'), unique=False, precision=4, trim='0'), + "1.0") + assert_equal(fpos(tp('1.2'), unique=False, precision=4, trim='0'), + "1.2" if tp != np.float16 else "1.2002") + assert_equal(fpos(tp('1.'), trim='0'), "1.0") + + assert_equal(fpos(tp('1.'), unique=False, precision=4, trim='-'), + "1") + assert_equal(fpos(tp('1.2'), unique=False, precision=4, trim='-'), + "1.2" if tp != np.float16 else "1.2002") + assert_equal(fpos(tp('1.'), trim='-'), "1") + assert_equal(fpos(tp('1.001'), precision=1, trim='-'), "1") + + @pytest.mark.parametrize("tp", available_float_dtypes) + @pytest.mark.parametrize("pad_val", [10**5, np.iinfo("int32").max]) + def test_dragon4_positional_interface_overflow(self, tp, pad_val): + # test is flaky for musllinux on np.float128 + if IS_MUSL and tp == np.float128: + pytest.skip("Skipping flaky test of float128 on musllinux") + + fpos = np.format_float_positional + + # gh-28068 + with pytest.raises(RuntimeError, + match="Float formatting result too large"): + fpos(tp('1.047'), unique=False, precision=pad_val) + + with pytest.raises(RuntimeError, + match="Float formatting result too large"): + fpos(tp('1.047'), precision=2, pad_left=pad_val) + + with pytest.raises(RuntimeError, + match="Float formatting result too large"): + fpos(tp('1.047'), precision=2, pad_right=pad_val) + + @pytest.mark.parametrize("tp", available_float_dtypes) + def test_dragon4_scientific_interface(self, tp): + # test is flaky for musllinux on np.float128 + if IS_MUSL and tp == np.float128: + pytest.skip("Skipping flaky test of float128 on musllinux") + + fsci = np.format_float_scientific + + # test exp_digits + assert_equal(fsci(tp('1.23e1'), exp_digits=5), "1.23e+00001") + + # test fixed (non-unique) mode + assert_equal(fsci(tp('1.0'), unique=False, precision=4), + "1.0000e+00") + + @pytest.mark.skipif(not platform.machine().startswith("ppc64"), + reason="only applies to ppc float128 values") + def test_ppc64_ibm_double_double128(self): + # check that the precision decreases once we get into the subnormal + # range. Unlike float64, this starts around 1e-292 instead of 1e-308, + # which happens when the first double is normal and the second is + # subnormal. + x = np.float128('2.123123123123123123123123123123123e-286') + got = [str(x / np.float128('2e' + str(i))) for i in range(40)] + expected = [ + "1.06156156156156156156156156156157e-286", + "1.06156156156156156156156156156158e-287", + "1.06156156156156156156156156156159e-288", + "1.0615615615615615615615615615616e-289", + "1.06156156156156156156156156156157e-290", + "1.06156156156156156156156156156156e-291", + "1.0615615615615615615615615615616e-292", + "1.0615615615615615615615615615615e-293", + "1.061561561561561561561561561562e-294", + "1.06156156156156156156156156155e-295", + "1.0615615615615615615615615616e-296", + "1.06156156156156156156156156e-297", + "1.06156156156156156156156157e-298", + "1.0615615615615615615615616e-299", + "1.06156156156156156156156e-300", + "1.06156156156156156156155e-301", + "1.0615615615615615615616e-302", + "1.061561561561561561562e-303", + "1.06156156156156156156e-304", + "1.0615615615615615618e-305", + "1.06156156156156156e-306", + "1.06156156156156157e-307", + "1.0615615615615616e-308", + "1.06156156156156e-309", + "1.06156156156157e-310", + "1.0615615615616e-311", + "1.06156156156e-312", + "1.06156156154e-313", + "1.0615615616e-314", + "1.06156156e-315", + "1.06156155e-316", + "1.061562e-317", + "1.06156e-318", + "1.06155e-319", + "1.0617e-320", + "1.06e-321", + "1.04e-322", + "1e-323", + "0.0", + "0.0"] + assert_equal(got, expected) + + # Note: we follow glibc behavior, but it (or gcc) might not be right. + # In particular we can get two values that print the same but are not + # equal: + a = np.float128('2') / np.float128('3') + b = np.float128(str(a)) + assert_equal(str(a), str(b)) + assert_(a != b) + + def float32_roundtrip(self): + # gh-9360 + x = np.float32(1024 - 2**-14) + y = np.float32(1024 - 2**-13) + assert_(repr(x) != repr(y)) + assert_equal(np.float32(repr(x)), x) + assert_equal(np.float32(repr(y)), y) + + def float64_vs_python(self): + # gh-2643, gh-6136, gh-6908 + assert_equal(repr(np.float64(0.1)), repr(0.1)) + assert_(repr(np.float64(0.20000000000000004)) != repr(0.2)) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_shape_base.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_shape_base.py new file mode 100644 index 0000000000000000000000000000000000000000..5be3d05bbf113c398ee25a98796d6b04a4759662 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_shape_base.py @@ -0,0 +1,904 @@ +import sys + +import pytest + +import numpy as np +from numpy._core import ( + arange, + array, + atleast_1d, + atleast_2d, + atleast_3d, + block, + concatenate, + hstack, + newaxis, + stack, + vstack, +) +from numpy._core.shape_base import ( + _block_concatenate, + _block_dispatcher, + _block_setup, + _block_slicing, +) +from numpy.exceptions import AxisError +from numpy.testing import ( + IS_PYPY, + assert_, + assert_array_equal, + assert_equal, + assert_raises, + assert_raises_regex, +) +from numpy.testing._private.utils import requires_memory + + +class TestAtleast1d: + def test_0D_array(self): + a = array(1) + b = array(2) + res = [atleast_1d(a), atleast_1d(b)] + desired = [array([1]), array([2])] + assert_array_equal(res, desired) + + def test_1D_array(self): + a = array([1, 2]) + b = array([2, 3]) + res = [atleast_1d(a), atleast_1d(b)] + desired = [array([1, 2]), array([2, 3])] + assert_array_equal(res, desired) + + def test_2D_array(self): + a = array([[1, 2], [1, 2]]) + b = array([[2, 3], [2, 3]]) + res = [atleast_1d(a), atleast_1d(b)] + desired = [a, b] + assert_array_equal(res, desired) + + def test_3D_array(self): + a = array([[1, 2], [1, 2]]) + b = array([[2, 3], [2, 3]]) + a = array([a, a]) + b = array([b, b]) + res = [atleast_1d(a), atleast_1d(b)] + desired = [a, b] + assert_array_equal(res, desired) + + def test_r1array(self): + """ Test to make sure equivalent Travis O's r1array function + """ + assert_(atleast_1d(3).shape == (1,)) + assert_(atleast_1d(3j).shape == (1,)) + assert_(atleast_1d(3.0).shape == (1,)) + assert_(atleast_1d([[2, 3], [4, 5]]).shape == (2, 2)) + + +class TestAtleast2d: + def test_0D_array(self): + a = array(1) + b = array(2) + res = [atleast_2d(a), atleast_2d(b)] + desired = [array([[1]]), array([[2]])] + assert_array_equal(res, desired) + + def test_1D_array(self): + a = array([1, 2]) + b = array([2, 3]) + res = [atleast_2d(a), atleast_2d(b)] + desired = [array([[1, 2]]), array([[2, 3]])] + assert_array_equal(res, desired) + + def test_2D_array(self): + a = array([[1, 2], [1, 2]]) + b = array([[2, 3], [2, 3]]) + res = [atleast_2d(a), atleast_2d(b)] + desired = [a, b] + assert_array_equal(res, desired) + + def test_3D_array(self): + a = array([[1, 2], [1, 2]]) + b = array([[2, 3], [2, 3]]) + a = array([a, a]) + b = array([b, b]) + res = [atleast_2d(a), atleast_2d(b)] + desired = [a, b] + assert_array_equal(res, desired) + + def test_r2array(self): + """ Test to make sure equivalent Travis O's r2array function + """ + assert_(atleast_2d(3).shape == (1, 1)) + assert_(atleast_2d([3j, 1]).shape == (1, 2)) + assert_(atleast_2d([[[3, 1], [4, 5]], [[3, 5], [1, 2]]]).shape == (2, 2, 2)) + + +class TestAtleast3d: + def test_0D_array(self): + a = array(1) + b = array(2) + res = [atleast_3d(a), atleast_3d(b)] + desired = [array([[[1]]]), array([[[2]]])] + assert_array_equal(res, desired) + + def test_1D_array(self): + a = array([1, 2]) + b = array([2, 3]) + res = [atleast_3d(a), atleast_3d(b)] + desired = [array([[[1], [2]]]), array([[[2], [3]]])] + assert_array_equal(res, desired) + + def test_2D_array(self): + a = array([[1, 2], [1, 2]]) + b = array([[2, 3], [2, 3]]) + res = [atleast_3d(a), atleast_3d(b)] + desired = [a[:, :, newaxis], b[:, :, newaxis]] + assert_array_equal(res, desired) + + def test_3D_array(self): + a = array([[1, 2], [1, 2]]) + b = array([[2, 3], [2, 3]]) + a = array([a, a]) + b = array([b, b]) + res = [atleast_3d(a), atleast_3d(b)] + desired = [a, b] + assert_array_equal(res, desired) + + +class TestHstack: + def test_non_iterable(self): + assert_raises(TypeError, hstack, 1) + + def test_empty_input(self): + assert_raises(ValueError, hstack, ()) + + def test_0D_array(self): + a = array(1) + b = array(2) + res = hstack([a, b]) + desired = array([1, 2]) + assert_array_equal(res, desired) + + def test_1D_array(self): + a = array([1]) + b = array([2]) + res = hstack([a, b]) + desired = array([1, 2]) + assert_array_equal(res, desired) + + def test_2D_array(self): + a = array([[1], [2]]) + b = array([[1], [2]]) + res = hstack([a, b]) + desired = array([[1, 1], [2, 2]]) + assert_array_equal(res, desired) + + def test_generator(self): + with pytest.raises(TypeError, match="arrays to stack must be"): + hstack(np.arange(3) for _ in range(2)) + with pytest.raises(TypeError, match="arrays to stack must be"): + hstack(x for x in np.ones((3, 2))) + + def test_casting_and_dtype(self): + a = np.array([1, 2, 3]) + b = np.array([2.5, 3.5, 4.5]) + res = np.hstack((a, b), casting="unsafe", dtype=np.int64) + expected_res = np.array([1, 2, 3, 2, 3, 4]) + assert_array_equal(res, expected_res) + + def test_casting_and_dtype_type_error(self): + a = np.array([1, 2, 3]) + b = np.array([2.5, 3.5, 4.5]) + with pytest.raises(TypeError): + hstack((a, b), casting="safe", dtype=np.int64) + + +class TestVstack: + def test_non_iterable(self): + assert_raises(TypeError, vstack, 1) + + def test_empty_input(self): + assert_raises(ValueError, vstack, ()) + + def test_0D_array(self): + a = array(1) + b = array(2) + res = vstack([a, b]) + desired = array([[1], [2]]) + assert_array_equal(res, desired) + + def test_1D_array(self): + a = array([1]) + b = array([2]) + res = vstack([a, b]) + desired = array([[1], [2]]) + assert_array_equal(res, desired) + + def test_2D_array(self): + a = array([[1], [2]]) + b = array([[1], [2]]) + res = vstack([a, b]) + desired = array([[1], [2], [1], [2]]) + assert_array_equal(res, desired) + + def test_2D_array2(self): + a = array([1, 2]) + b = array([1, 2]) + res = vstack([a, b]) + desired = array([[1, 2], [1, 2]]) + assert_array_equal(res, desired) + + def test_generator(self): + with pytest.raises(TypeError, match="arrays to stack must be"): + vstack(np.arange(3) for _ in range(2)) + + def test_casting_and_dtype(self): + a = np.array([1, 2, 3]) + b = np.array([2.5, 3.5, 4.5]) + res = np.vstack((a, b), casting="unsafe", dtype=np.int64) + expected_res = np.array([[1, 2, 3], [2, 3, 4]]) + assert_array_equal(res, expected_res) + + def test_casting_and_dtype_type_error(self): + a = np.array([1, 2, 3]) + b = np.array([2.5, 3.5, 4.5]) + with pytest.raises(TypeError): + vstack((a, b), casting="safe", dtype=np.int64) + + +class TestConcatenate: + def test_returns_copy(self): + a = np.eye(3) + b = np.concatenate([a]) + b[0, 0] = 2 + assert b[0, 0] != a[0, 0] + + def test_exceptions(self): + # test axis must be in bounds + for ndim in [1, 2, 3]: + a = np.ones((1,) * ndim) + np.concatenate((a, a), axis=0) # OK + assert_raises(AxisError, np.concatenate, (a, a), axis=ndim) + assert_raises(AxisError, np.concatenate, (a, a), axis=-(ndim + 1)) + + # Scalars cannot be concatenated + assert_raises(ValueError, concatenate, (0,)) + assert_raises(ValueError, concatenate, (np.array(0),)) + + # dimensionality must match + assert_raises_regex( + ValueError, + r"all the input arrays must have same number of dimensions, but " + r"the array at index 0 has 1 dimension\(s\) and the array at " + r"index 1 has 2 dimension\(s\)", + np.concatenate, (np.zeros(1), np.zeros((1, 1)))) + + # test shapes must match except for concatenation axis + a = np.ones((1, 2, 3)) + b = np.ones((2, 2, 3)) + axis = list(range(3)) + for i in range(3): + np.concatenate((a, b), axis=axis[0]) # OK + assert_raises_regex( + ValueError, + "all the input array dimensions except for the concatenation axis " + f"must match exactly, but along dimension {i}, the array at " + "index 0 has size 1 and the array at index 1 has size 2", + np.concatenate, (a, b), axis=axis[1]) + assert_raises(ValueError, np.concatenate, (a, b), axis=axis[2]) + a = np.moveaxis(a, -1, 0) + b = np.moveaxis(b, -1, 0) + axis.append(axis.pop(0)) + + # No arrays to concatenate raises ValueError + assert_raises(ValueError, concatenate, ()) + + @pytest.mark.slow + @pytest.mark.skipif( + sys.maxsize < 2**32, + reason="only problematic on 64bit platforms" + ) + @requires_memory(2 * np.iinfo(np.intc).max) + @pytest.mark.thread_unsafe(reason="crashes with low memory") + def test_huge_list_error(self): + a = np.array([1]) + max_int = np.iinfo(np.intc).max + arrs = (a,) * (max_int + 1) + msg = (fr"concatenate\(\) only supports up to {max_int} arrays" + f" but got {max_int + 1}.") + with pytest.raises(ValueError, match=msg): + np.concatenate(arrs) + + def test_concatenate_axis_None(self): + a = np.arange(4, dtype=np.float64).reshape((2, 2)) + b = list(range(3)) + c = ['x'] + r = np.concatenate((a, a), axis=None) + assert_equal(r.dtype, a.dtype) + assert_equal(r.ndim, 1) + r = np.concatenate((a, b), axis=None) + assert_equal(r.size, a.size + len(b)) + assert_equal(r.dtype, a.dtype) + r = np.concatenate((a, b, c), axis=None, dtype="U") + d = array(['0.0', '1.0', '2.0', '3.0', + '0', '1', '2', 'x']) + assert_array_equal(r, d) + + out = np.zeros(a.size + len(b)) + r = np.concatenate((a, b), axis=None) + rout = np.concatenate((a, b), axis=None, out=out) + assert_(out is rout) + assert_equal(r, rout) + + def test_large_concatenate_axis_None(self): + # When no axis is given, concatenate uses flattened versions. + # This also had a bug with many arrays (see gh-5979). + x = np.arange(1, 100) + r = np.concatenate(x, None) + assert_array_equal(x, r) + + # Once upon a time, this was the same as `axis=None` now it fails + # (with an unspecified error, as multiple things are wrong here) + with pytest.raises(ValueError): + np.concatenate(x, 100) + + def test_concatenate(self): + # Test concatenate function + # One sequence returns unmodified (but as array) + r4 = list(range(4)) + assert_array_equal(concatenate((r4,)), r4) + # Any sequence + assert_array_equal(concatenate((tuple(r4),)), r4) + assert_array_equal(concatenate((array(r4),)), r4) + # 1D default concatenation + r3 = list(range(3)) + assert_array_equal(concatenate((r4, r3)), r4 + r3) + # Mixed sequence types + assert_array_equal(concatenate((tuple(r4), r3)), r4 + r3) + assert_array_equal(concatenate((array(r4), r3)), r4 + r3) + # Explicit axis specification + assert_array_equal(concatenate((r4, r3), 0), r4 + r3) + # Including negative + assert_array_equal(concatenate((r4, r3), -1), r4 + r3) + # 2D + a23 = array([[10, 11, 12], [13, 14, 15]]) + a13 = array([[0, 1, 2]]) + res = array([[10, 11, 12], [13, 14, 15], [0, 1, 2]]) + assert_array_equal(concatenate((a23, a13)), res) + assert_array_equal(concatenate((a23, a13), 0), res) + assert_array_equal(concatenate((a23.T, a13.T), 1), res.T) + assert_array_equal(concatenate((a23.T, a13.T), -1), res.T) + # Arrays much match shape + assert_raises(ValueError, concatenate, (a23.T, a13.T), 0) + # 3D + res = arange(2 * 3 * 7).reshape((2, 3, 7)) + a0 = res[..., :4] + a1 = res[..., 4:6] + a2 = res[..., 6:] + assert_array_equal(concatenate((a0, a1, a2), 2), res) + assert_array_equal(concatenate((a0, a1, a2), -1), res) + assert_array_equal(concatenate((a0.T, a1.T, a2.T), 0), res.T) + + out = res.copy() + rout = concatenate((a0, a1, a2), 2, out=out) + assert_(out is rout) + assert_equal(res, rout) + + def test_concatenate_same_value(self): + r4 = list(range(4)) + with pytest.raises(ValueError, match="^casting must be one of"): + concatenate([r4, r4], casting="same_value") + + @pytest.mark.skipif( + IS_PYPY, + reason="PYPY handles sq_concat, nb_add differently than cpython" + ) + def test_operator_concat(self): + import operator + a = array([1, 2]) + b = array([3, 4]) + n = [1, 2] + res = array([1, 2, 3, 4]) + assert_raises(TypeError, operator.concat, a, b) + assert_raises(TypeError, operator.concat, a, n) + assert_raises(TypeError, operator.concat, n, a) + assert_raises(TypeError, operator.concat, a, 1) + assert_raises(TypeError, operator.concat, 1, a) + + def test_bad_out_shape(self): + a = array([1, 2]) + b = array([3, 4]) + + assert_raises(ValueError, concatenate, (a, b), out=np.empty(5)) + assert_raises(ValueError, concatenate, (a, b), out=np.empty((4, 1))) + assert_raises(ValueError, concatenate, (a, b), out=np.empty((1, 4))) + concatenate((a, b), out=np.empty(4)) + + @pytest.mark.parametrize("axis", [None, 0]) + @pytest.mark.parametrize("out_dtype", ["c8", "f4", "f8", ">f8", "i8", "S4"]) + @pytest.mark.parametrize("casting", + ['no', 'equiv', 'safe', 'same_kind', 'unsafe']) + def test_out_and_dtype(self, axis, out_dtype, casting): + # Compare usage of `out=out` with `dtype=out.dtype` + out = np.empty(4, dtype=out_dtype) + to_concat = (array([1.1, 2.2]), array([3.3, 4.4])) + + if not np.can_cast(to_concat[0], out_dtype, casting=casting): + with assert_raises(TypeError): + concatenate(to_concat, out=out, axis=axis, casting=casting) + with assert_raises(TypeError): + concatenate(to_concat, dtype=out.dtype, + axis=axis, casting=casting) + else: + res_out = concatenate(to_concat, out=out, + axis=axis, casting=casting) + res_dtype = concatenate(to_concat, dtype=out.dtype, + axis=axis, casting=casting) + assert res_out is out + assert_array_equal(out, res_dtype) + assert res_dtype.dtype == out_dtype + + with assert_raises(TypeError): + concatenate(to_concat, out=out, dtype=out_dtype, axis=axis) + + @pytest.mark.parametrize("axis", [None, 0]) + @pytest.mark.parametrize("string_dt", ["S", "U", "S0", "U0"]) + @pytest.mark.parametrize("arrs", + [([0.],), ([0.], [1]), ([0], ["string"], [1.])]) + def test_dtype_with_promotion(self, arrs, string_dt, axis): + # Note that U0 and S0 should be deprecated eventually and changed to + # actually give the empty string result (together with `np.array`) + res = np.concatenate(arrs, axis=axis, dtype=string_dt, casting="unsafe") + # The actual dtype should be identical to a cast (of a double array): + assert res.dtype == np.array(1.).astype(string_dt).dtype + + @pytest.mark.parametrize("axis", [None, 0]) + def test_string_dtype_does_not_inspect(self, axis): + with pytest.raises(TypeError): + np.concatenate(([None], [1]), dtype="S", axis=axis) + with pytest.raises(TypeError): + np.concatenate(([None], [1]), dtype="U", axis=axis) + + @pytest.mark.parametrize("axis", [None, 0]) + def test_subarray_error(self, axis): + with pytest.raises(TypeError, match=".*subarray dtype"): + np.concatenate(([1], [1]), dtype="(2,)i", axis=axis) + + +def test_stack(): + # non-iterable input + assert_raises(TypeError, stack, 1) + + # 0d input + for input_ in [(1, 2, 3), + [np.int32(1), np.int32(2), np.int32(3)], + [np.array(1), np.array(2), np.array(3)]]: + assert_array_equal(stack(input_), [1, 2, 3]) + # 1d input examples + a = np.array([1, 2, 3]) + b = np.array([4, 5, 6]) + r1 = array([[1, 2, 3], [4, 5, 6]]) + assert_array_equal(np.stack((a, b)), r1) + assert_array_equal(np.stack((a, b), axis=1), r1.T) + # all input types + assert_array_equal(np.stack([a, b]), r1) + assert_array_equal(np.stack(array([a, b])), r1) + # all shapes for 1d input + arrays = [np.random.randn(3) for _ in range(10)] + axes = [0, 1, -1, -2] + expected_shapes = [(10, 3), (3, 10), (3, 10), (10, 3)] + for axis, expected_shape in zip(axes, expected_shapes): + assert_equal(np.stack(arrays, axis).shape, expected_shape) + assert_raises_regex(AxisError, 'out of bounds', stack, arrays, axis=2) + assert_raises_regex(AxisError, 'out of bounds', stack, arrays, axis=-3) + # all shapes for 2d input + arrays = [np.random.randn(3, 4) for _ in range(10)] + axes = [0, 1, 2, -1, -2, -3] + expected_shapes = [(10, 3, 4), (3, 10, 4), (3, 4, 10), + (3, 4, 10), (3, 10, 4), (10, 3, 4)] + for axis, expected_shape in zip(axes, expected_shapes): + assert_equal(np.stack(arrays, axis).shape, expected_shape) + # empty arrays + assert_(stack([[], [], []]).shape == (3, 0)) + assert_(stack([[], [], []], axis=1).shape == (0, 3)) + # out + out = np.zeros_like(r1) + np.stack((a, b), out=out) + assert_array_equal(out, r1) + # edge cases + assert_raises_regex(ValueError, 'need at least one array', stack, []) + assert_raises_regex(ValueError, 'must have the same shape', + stack, [1, np.arange(3)]) + assert_raises_regex(ValueError, 'must have the same shape', + stack, [np.arange(3), 1]) + assert_raises_regex(ValueError, 'must have the same shape', + stack, [np.arange(3), 1], axis=1) + assert_raises_regex(ValueError, 'must have the same shape', + stack, [np.zeros((3, 3)), np.zeros(3)], axis=1) + assert_raises_regex(ValueError, 'must have the same shape', + stack, [np.arange(2), np.arange(3)]) + + # do not accept generators + with pytest.raises(TypeError, match="arrays to stack must be"): + stack(x for x in range(3)) + + # casting and dtype test + a = np.array([1, 2, 3]) + b = np.array([2.5, 3.5, 4.5]) + res = np.stack((a, b), axis=1, casting="unsafe", dtype=np.int64) + expected_res = np.array([[1, 2], [2, 3], [3, 4]]) + assert_array_equal(res, expected_res) + # casting and dtype with TypeError + with assert_raises(TypeError): + stack((a, b), dtype=np.int64, axis=1, casting="safe") + + +def test_unstack(): + a = np.arange(24).reshape((2, 3, 4)) + + for stacks in [np.unstack(a), + np.unstack(a, axis=0), + np.unstack(a, axis=-3)]: + assert isinstance(stacks, tuple) + assert len(stacks) == 2 + assert_array_equal(stacks[0], a[0]) + assert_array_equal(stacks[1], a[1]) + + for stacks in [np.unstack(a, axis=1), + np.unstack(a, axis=-2)]: + assert isinstance(stacks, tuple) + assert len(stacks) == 3 + assert_array_equal(stacks[0], a[:, 0]) + assert_array_equal(stacks[1], a[:, 1]) + assert_array_equal(stacks[2], a[:, 2]) + + for stacks in [np.unstack(a, axis=2), + np.unstack(a, axis=-1)]: + assert isinstance(stacks, tuple) + assert len(stacks) == 4 + assert_array_equal(stacks[0], a[:, :, 0]) + assert_array_equal(stacks[1], a[:, :, 1]) + assert_array_equal(stacks[2], a[:, :, 2]) + assert_array_equal(stacks[3], a[:, :, 3]) + + assert_raises(ValueError, np.unstack, a, axis=3) + assert_raises(ValueError, np.unstack, a, axis=-4) + assert_raises(ValueError, np.unstack, np.array(0), axis=0) + + +@pytest.mark.parametrize("axis", [0]) +@pytest.mark.parametrize("out_dtype", ["c8", "f4", "f8", ">f8", "i8"]) +@pytest.mark.parametrize("casting", + ['no', 'equiv', 'safe', 'same_kind', 'unsafe']) +def test_stack_out_and_dtype(axis, out_dtype, casting): + to_concat = (array([1, 2]), array([3, 4])) + res = array([[1, 2], [3, 4]]) + out = np.zeros_like(res) + + if not np.can_cast(to_concat[0], out_dtype, casting=casting): + with assert_raises(TypeError): + stack(to_concat, dtype=out_dtype, + axis=axis, casting=casting) + else: + res_out = stack(to_concat, out=out, + axis=axis, casting=casting) + res_dtype = stack(to_concat, dtype=out_dtype, + axis=axis, casting=casting) + assert res_out is out + assert_array_equal(out, res_dtype) + assert res_dtype.dtype == out_dtype + + with assert_raises(TypeError): + stack(to_concat, out=out, dtype=out_dtype, axis=axis) + + +class TestBlock: + @pytest.fixture(params=['block', 'force_concatenate', 'force_slicing']) + def block(self, request): + # blocking small arrays and large arrays go through different paths. + # the algorithm is triggered depending on the number of element + # copies required. + # We define a test fixture that forces most tests to go through + # both code paths. + # Ultimately, this should be removed if a single algorithm is found + # to be faster for both small and large arrays. + def _block_force_concatenate(arrays): + arrays, list_ndim, result_ndim, _ = _block_setup(arrays) + return _block_concatenate(arrays, list_ndim, result_ndim) + + def _block_force_slicing(arrays): + arrays, list_ndim, result_ndim, _ = _block_setup(arrays) + return _block_slicing(arrays, list_ndim, result_ndim) + + if request.param == 'force_concatenate': + return _block_force_concatenate + elif request.param == 'force_slicing': + return _block_force_slicing + elif request.param == 'block': + return block + else: + raise ValueError('Unknown blocking request. There is a typo in the tests.') + + def test_returns_copy(self, block): + a = np.eye(3) + b = block(a) + b[0, 0] = 2 + assert b[0, 0] != a[0, 0] + + def test_block_total_size_estimate(self, block): + _, _, _, total_size = _block_setup([1]) + assert total_size == 1 + + _, _, _, total_size = _block_setup([[1]]) + assert total_size == 1 + + _, _, _, total_size = _block_setup([[1, 1]]) + assert total_size == 2 + + _, _, _, total_size = _block_setup([[1], [1]]) + assert total_size == 2 + + _, _, _, total_size = _block_setup([[1, 2], [3, 4]]) + assert total_size == 4 + + def test_block_simple_row_wise(self, block): + a_2d = np.ones((2, 2)) + b_2d = 2 * a_2d + desired = np.array([[1, 1, 2, 2], + [1, 1, 2, 2]]) + result = block([a_2d, b_2d]) + assert_equal(desired, result) + + def test_block_simple_column_wise(self, block): + a_2d = np.ones((2, 2)) + b_2d = 2 * a_2d + expected = np.array([[1, 1], + [1, 1], + [2, 2], + [2, 2]]) + result = block([[a_2d], [b_2d]]) + assert_equal(expected, result) + + def test_block_with_1d_arrays_row_wise(self, block): + # # # 1-D vectors are treated as row arrays + a = np.array([1, 2, 3]) + b = np.array([2, 3, 4]) + expected = np.array([1, 2, 3, 2, 3, 4]) + result = block([a, b]) + assert_equal(expected, result) + + def test_block_with_1d_arrays_multiple_rows(self, block): + a = np.array([1, 2, 3]) + b = np.array([2, 3, 4]) + expected = np.array([[1, 2, 3, 2, 3, 4], + [1, 2, 3, 2, 3, 4]]) + result = block([[a, b], [a, b]]) + assert_equal(expected, result) + + def test_block_with_1d_arrays_column_wise(self, block): + # # # 1-D vectors are treated as row arrays + a_1d = np.array([1, 2, 3]) + b_1d = np.array([2, 3, 4]) + expected = np.array([[1, 2, 3], + [2, 3, 4]]) + result = block([[a_1d], [b_1d]]) + assert_equal(expected, result) + + def test_block_mixed_1d_and_2d(self, block): + a_2d = np.ones((2, 2)) + b_1d = np.array([2, 2]) + result = block([[a_2d], [b_1d]]) + expected = np.array([[1, 1], + [1, 1], + [2, 2]]) + assert_equal(expected, result) + + def test_block_complicated(self, block): + # a bit more complicated + one_2d = np.array([[1, 1, 1]]) + two_2d = np.array([[2, 2, 2]]) + three_2d = np.array([[3, 3, 3, 3, 3, 3]]) + four_1d = np.array([4, 4, 4, 4, 4, 4]) + five_0d = np.array(5) + six_1d = np.array([6, 6, 6, 6, 6]) + zero_2d = np.zeros((2, 6)) + + expected = np.array([[1, 1, 1, 2, 2, 2], + [3, 3, 3, 3, 3, 3], + [4, 4, 4, 4, 4, 4], + [5, 6, 6, 6, 6, 6], + [0, 0, 0, 0, 0, 0], + [0, 0, 0, 0, 0, 0]]) + + result = block([[one_2d, two_2d], + [three_2d], + [four_1d], + [five_0d, six_1d], + [zero_2d]]) + assert_equal(result, expected) + + def test_nested(self, block): + one = np.array([1, 1, 1]) + two = np.array([[2, 2, 2], [2, 2, 2], [2, 2, 2]]) + three = np.array([3, 3, 3]) + four = np.array([4, 4, 4]) + five = np.array(5) + six = np.array([6, 6, 6, 6, 6]) + zero = np.zeros((2, 6)) + + result = block([ + [ + block([ + [one], + [three], + [four] + ]), + two + ], + [five, six], + [zero] + ]) + expected = np.array([[1, 1, 1, 2, 2, 2], + [3, 3, 3, 2, 2, 2], + [4, 4, 4, 2, 2, 2], + [5, 6, 6, 6, 6, 6], + [0, 0, 0, 0, 0, 0], + [0, 0, 0, 0, 0, 0]]) + + assert_equal(result, expected) + + def test_3d(self, block): + a000 = np.ones((2, 2, 2), int) * 1 + + a100 = np.ones((3, 2, 2), int) * 2 + a010 = np.ones((2, 3, 2), int) * 3 + a001 = np.ones((2, 2, 3), int) * 4 + + a011 = np.ones((2, 3, 3), int) * 5 + a101 = np.ones((3, 2, 3), int) * 6 + a110 = np.ones((3, 3, 2), int) * 7 + + a111 = np.ones((3, 3, 3), int) * 8 + + result = block([ + [ + [a000, a001], + [a010, a011], + ], + [ + [a100, a101], + [a110, a111], + ] + ]) + expected = array([[[1, 1, 4, 4, 4], + [1, 1, 4, 4, 4], + [3, 3, 5, 5, 5], + [3, 3, 5, 5, 5], + [3, 3, 5, 5, 5]], + + [[1, 1, 4, 4, 4], + [1, 1, 4, 4, 4], + [3, 3, 5, 5, 5], + [3, 3, 5, 5, 5], + [3, 3, 5, 5, 5]], + + [[2, 2, 6, 6, 6], + [2, 2, 6, 6, 6], + [7, 7, 8, 8, 8], + [7, 7, 8, 8, 8], + [7, 7, 8, 8, 8]], + + [[2, 2, 6, 6, 6], + [2, 2, 6, 6, 6], + [7, 7, 8, 8, 8], + [7, 7, 8, 8, 8], + [7, 7, 8, 8, 8]], + + [[2, 2, 6, 6, 6], + [2, 2, 6, 6, 6], + [7, 7, 8, 8, 8], + [7, 7, 8, 8, 8], + [7, 7, 8, 8, 8]]]) + + assert_array_equal(result, expected) + + def test_block_with_mismatched_shape(self, block): + a = np.array([0, 0]) + b = np.eye(2) + assert_raises(ValueError, block, [a, b]) + assert_raises(ValueError, block, [b, a]) + + to_block = [[np.ones((2, 3)), np.ones((2, 2))], + [np.ones((2, 2)), np.ones((2, 2))]] + assert_raises(ValueError, block, to_block) + + def test_no_lists(self, block): + assert_equal(block(1), np.array(1)) + assert_equal(block(np.eye(3)), np.eye(3)) + + def test_invalid_nesting(self, block): + msg = 'depths are mismatched' + assert_raises_regex(ValueError, msg, block, [1, [2]]) + assert_raises_regex(ValueError, msg, block, [1, []]) + assert_raises_regex(ValueError, msg, block, [[1], 2]) + assert_raises_regex(ValueError, msg, block, [[], 2]) + assert_raises_regex(ValueError, msg, block, [ + [[1], [2]], + [[3, 4]], + [5] # missing brackets + ]) + + def test_empty_lists(self, block): + assert_raises_regex(ValueError, 'empty', block, []) + assert_raises_regex(ValueError, 'empty', block, [[]]) + assert_raises_regex(ValueError, 'empty', block, [[1], []]) + + def test_tuple(self, block): + assert_raises_regex(TypeError, 'tuple', block, ([1, 2], [3, 4])) + assert_raises_regex(TypeError, 'tuple', block, [(1, 2), (3, 4)]) + + def test_different_ndims(self, block): + a = 1. + b = 2 * np.ones((1, 2)) + c = 3 * np.ones((1, 1, 3)) + + result = block([a, b, c]) + expected = np.array([[[1., 2., 2., 3., 3., 3.]]]) + + assert_equal(result, expected) + + def test_different_ndims_depths(self, block): + a = 1. + b = 2 * np.ones((1, 2)) + c = 3 * np.ones((1, 2, 3)) + + result = block([[a, b], [c]]) + expected = np.array([[[1., 2., 2.], + [3., 3., 3.], + [3., 3., 3.]]]) + + assert_equal(result, expected) + + def test_block_memory_order(self, block): + # 3D + arr_c = np.zeros((3,) * 3, order='C') + arr_f = np.zeros((3,) * 3, order='F') + + b_c = [[[arr_c, arr_c], + [arr_c, arr_c]], + [[arr_c, arr_c], + [arr_c, arr_c]]] + + b_f = [[[arr_f, arr_f], + [arr_f, arr_f]], + [[arr_f, arr_f], + [arr_f, arr_f]]] + + assert block(b_c).flags['C_CONTIGUOUS'] + assert block(b_f).flags['F_CONTIGUOUS'] + + arr_c = np.zeros((3, 3), order='C') + arr_f = np.zeros((3, 3), order='F') + # 2D + b_c = [[arr_c, arr_c], + [arr_c, arr_c]] + + b_f = [[arr_f, arr_f], + [arr_f, arr_f]] + + assert block(b_c).flags['C_CONTIGUOUS'] + assert block(b_f).flags['F_CONTIGUOUS'] + + +def test_block_dispatcher(): + class ArrayLike: + pass + a = ArrayLike() + b = ArrayLike() + c = ArrayLike() + assert_equal(list(_block_dispatcher(a)), [a]) + assert_equal(list(_block_dispatcher([a])), [a]) + assert_equal(list(_block_dispatcher([a, b])), [a, b]) + assert_equal(list(_block_dispatcher([[a], [b, [c]]])), [a, b, c]) + # don't recurse into non-lists + assert_equal(list(_block_dispatcher((a, b))), [(a, b)]) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_simd.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_simd.py new file mode 100644 index 0000000000000000000000000000000000000000..335abc98c84e8197015c675e0c07fb2631f02e6e --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_simd.py @@ -0,0 +1,1345 @@ +# NOTE: Please avoid the use of numpy.testing since NPYV intrinsics +# may be involved in their functionality. +import itertools +import math +import operator +import re + +import pytest + +from numpy._core._multiarray_umath import __cpu_baseline__ +from numpy._core._simd import clear_floatstatus, get_floatstatus, targets + + +def check_floatstatus(divbyzero=False, overflow=False, + underflow=False, invalid=False, + all=False): + #define NPY_FPE_DIVIDEBYZERO 1 + #define NPY_FPE_OVERFLOW 2 + #define NPY_FPE_UNDERFLOW 4 + #define NPY_FPE_INVALID 8 + err = get_floatstatus() + ret = (all or divbyzero) and (err & 1) != 0 + ret |= (all or overflow) and (err & 2) != 0 + ret |= (all or underflow) and (err & 4) != 0 + ret |= (all or invalid) and (err & 8) != 0 + return ret + +class _Test_Utility: + # submodule of the desired SIMD extension, e.g. targets["AVX512F"] + npyv = None + # the current data type suffix e.g. 's8' + sfx = None + # target name can be 'baseline' or one or more of CPU features + target_name = None + + def __getattr__(self, attr): + """ + To call NPV intrinsics without the attribute 'npyv' and + auto suffixing intrinsics according to class attribute 'sfx' + """ + return getattr(self.npyv, attr + "_" + self.sfx) + + def _x2(self, intrin_name): + return getattr(self.npyv, f"{intrin_name}_{self.sfx}x2") + + def _data(self, start=None, count=None, reverse=False): + """ + Create list of consecutive numbers according to number of vector's lanes. + """ + if start is None: + start = 1 + if count is None: + count = self.nlanes + rng = range(start, start + count) + if reverse: + rng = reversed(rng) + if self._is_fp(): + return [x / 1.0 for x in rng] + return list(rng) + + def _is_unsigned(self): + return self.sfx[0] == 'u' + + def _is_signed(self): + return self.sfx[0] == 's' + + def _is_fp(self): + return self.sfx[0] == 'f' + + def _scalar_size(self): + return int(self.sfx[1:]) + + def _int_clip(self, seq): + if self._is_fp(): + return seq + max_int = self._int_max() + min_int = self._int_min() + return [min(max(v, min_int), max_int) for v in seq] + + def _int_max(self): + if self._is_fp(): + return None + max_u = self._to_unsigned(self.setall(-1))[0] + if self._is_signed(): + return max_u // 2 + return max_u + + def _int_min(self): + if self._is_fp(): + return None + if self._is_unsigned(): + return 0 + return -(self._int_max() + 1) + + def _true_mask(self): + max_unsig = getattr(self.npyv, "setall_u" + self.sfx[1:])(-1) + return max_unsig[0] + + def _to_unsigned(self, vector): + if isinstance(vector, (list, tuple)): + return getattr(self.npyv, "load_u" + self.sfx[1:])(vector) + else: + sfx = vector.__name__.replace("npyv_", "") + if sfx[0] == "b": + cvt_intrin = "cvt_u{0}_b{0}" + else: + cvt_intrin = "reinterpret_u{0}_{1}" + return getattr(self.npyv, cvt_intrin.format(sfx[1:], sfx))(vector) + + def _pinfinity(self): + return float("inf") + + def _ninfinity(self): + return -float("inf") + + def _nan(self): + return float("nan") + + def _cpu_features(self): + target = self.target_name + if target == "baseline": + target = __cpu_baseline__ + else: + target = target.split('__') # multi-target separator + return ' '.join(target) + +class _SIMD_BOOL(_Test_Utility): + """ + To test all boolean vector types at once + """ + def _nlanes(self): + return getattr(self.npyv, "nlanes_u" + self.sfx[1:]) + + def _data(self, start=None, count=None, reverse=False): + true_mask = self._true_mask() + rng = range(self._nlanes()) + if reverse: + rng = reversed(rng) + return [true_mask if x % 2 else 0 for x in rng] + + def _load_b(self, data): + len_str = self.sfx[1:] + load = getattr(self.npyv, "load_u" + len_str) + cvt = getattr(self.npyv, f"cvt_b{len_str}_u{len_str}") + return cvt(load(data)) + + def test_operators_logical(self): + """ + Logical operations for boolean types. + Test intrinsics: + npyv_xor_##SFX, npyv_and_##SFX, npyv_or_##SFX, npyv_not_##SFX, + npyv_andc_b8, npvy_orc_b8, nvpy_xnor_b8 + """ + data_a = self._data() + data_b = self._data(reverse=True) + vdata_a = self._load_b(data_a) + vdata_b = self._load_b(data_b) + + data_and = [a & b for a, b in zip(data_a, data_b)] + vand = getattr(self, "and")(vdata_a, vdata_b) + assert vand == data_and + + data_or = [a | b for a, b in zip(data_a, data_b)] + vor = getattr(self, "or")(vdata_a, vdata_b) + assert vor == data_or + + data_xor = [a ^ b for a, b in zip(data_a, data_b)] + vxor = self.xor(vdata_a, vdata_b) + assert vxor == data_xor + + vnot = getattr(self, "not")(vdata_a) + assert vnot == data_b + + # among the boolean types, andc, orc and xnor only support b8 + if self.sfx not in ("b8"): + return + + data_andc = [(a & ~b) & 0xFF for a, b in zip(data_a, data_b)] + vandc = self.andc(vdata_a, vdata_b) + assert data_andc == vandc + + data_orc = [(a | ~b) & 0xFF for a, b in zip(data_a, data_b)] + vorc = self.orc(vdata_a, vdata_b) + assert data_orc == vorc + + data_xnor = [~(a ^ b) & 0xFF for a, b in zip(data_a, data_b)] + vxnor = self.xnor(vdata_a, vdata_b) + assert data_xnor == vxnor + + def test_tobits(self): + data2bits = lambda data: sum(int(x != 0) << i for i, x in enumerate(data, 0)) + for data in (self._data(), self._data(reverse=True)): + vdata = self._load_b(data) + data_bits = data2bits(data) + tobits = self.tobits(vdata) + bin_tobits = bin(tobits) + assert bin_tobits == bin(data_bits) + + def test_pack(self): + """ + Pack multiple vectors into one + Test intrinsics: + npyv_pack_b8_b16 + npyv_pack_b8_b32 + npyv_pack_b8_b64 + """ + if self.sfx not in ("b16", "b32", "b64"): + return + # create the vectors + data = self._data() + rdata = self._data(reverse=True) + vdata = self._load_b(data) + vrdata = self._load_b(rdata) + pack_simd = getattr(self.npyv, f"pack_b8_{self.sfx}") + # for scalar execution, concatenate the elements of the multiple lists + # into a single list (spack) and then iterate over the elements of + # the created list applying a mask to capture the first byte of them. + if self.sfx == "b16": + spack = [(i & 0xFF) for i in (list(rdata) + list(data))] + vpack = pack_simd(vrdata, vdata) + elif self.sfx == "b32": + spack = [(i & 0xFF) for i in (2 * list(rdata) + 2 * list(data))] + vpack = pack_simd(vrdata, vrdata, vdata, vdata) + elif self.sfx == "b64": + spack = [(i & 0xFF) for i in (4 * list(rdata) + 4 * list(data))] + vpack = pack_simd(vrdata, vrdata, vrdata, vrdata, + vdata, vdata, vdata, vdata) + assert vpack == spack + + @pytest.mark.parametrize("intrin", ["any", "all"]) + @pytest.mark.parametrize("data", ( + [-1, 0], + [0, -1], + [-1], + [0] + )) + def test_operators_crosstest(self, intrin, data): + """ + Test intrinsics: + npyv_any_##SFX + npyv_all_##SFX + """ + data_a = self._load_b(data * self._nlanes()) + func = eval(intrin) + intrin = getattr(self, intrin) + desired = func(data_a) + simd = intrin(data_a) + assert not not simd == desired + +class _SIMD_INT(_Test_Utility): + """ + To test all integer vector types at once + """ + def test_operators_shift(self): + if self.sfx in ("u8", "s8"): + return + + data_a = self._data(self._int_max() - self.nlanes) + data_b = self._data(self._int_min(), reverse=True) + vdata_a, vdata_b = self.load(data_a), self.load(data_b) + + for count in range(self._scalar_size()): + # load to cast + data_shl_a = self.load([a << count for a in data_a]) + # left shift + shl = self.shl(vdata_a, count) + assert shl == data_shl_a + # load to cast + data_shr_a = self.load([a >> count for a in data_a]) + # right shift + shr = self.shr(vdata_a, count) + assert shr == data_shr_a + + # shift by zero or max or out-range immediate constant is not + # applicable and illogical + for count in range(1, self._scalar_size()): + # load to cast + data_shl_a = self.load([a << count for a in data_a]) + # left shift by an immediate constant + shli = self.shli(vdata_a, count) + assert shli == data_shl_a + # load to cast + data_shr_a = self.load([a >> count for a in data_a]) + # right shift by an immediate constant + shri = self.shri(vdata_a, count) + assert shri == data_shr_a + + def test_arithmetic_subadd_saturated(self): + if self.sfx in ("u32", "s32", "u64", "s64"): + return + + data_a = self._data(self._int_max() - self.nlanes) + data_b = self._data(self._int_min(), reverse=True) + vdata_a, vdata_b = self.load(data_a), self.load(data_b) + + data_adds = self._int_clip([a + b for a, b in zip(data_a, data_b)]) + adds = self.adds(vdata_a, vdata_b) + assert adds == data_adds + + data_subs = self._int_clip([a - b for a, b in zip(data_a, data_b)]) + subs = self.subs(vdata_a, vdata_b) + assert subs == data_subs + + def test_math_max_min(self): + data_a = self._data() + data_b = self._data(self.nlanes) + vdata_a, vdata_b = self.load(data_a), self.load(data_b) + + data_max = [max(a, b) for a, b in zip(data_a, data_b)] + simd_max = self.max(vdata_a, vdata_b) + assert simd_max == data_max + + data_min = [min(a, b) for a, b in zip(data_a, data_b)] + simd_min = self.min(vdata_a, vdata_b) + assert simd_min == data_min + + @pytest.mark.parametrize("start", [-100, -10000, 0, 100, 10000]) + def test_reduce_max_min(self, start): + """ + Test intrinsics: + npyv_reduce_max_##sfx + npyv_reduce_min_##sfx + """ + vdata_a = self.load(self._data(start)) + assert self.reduce_max(vdata_a) == max(vdata_a) + assert self.reduce_min(vdata_a) == min(vdata_a) + + +class _SIMD_FP32(_Test_Utility): + """ + To only test single precision + """ + def test_conversions(self): + """ + Round to nearest even integer, assume CPU control register is set to rounding. + Test intrinsics: + npyv_round_s32_##SFX + """ + features = self._cpu_features() + if not self.npyv.simd_f64 and re.match(r".*(NEON|ASIMD)", features): + # very costly to emulate nearest even on Armv7 + # instead we round halves to up. e.g. 0.5 -> 1, -0.5 -> -1 + _round = lambda v: int(v + (0.5 if v >= 0 else -0.5)) + else: + _round = round + vdata_a = self.load(self._data()) + vdata_a = self.sub(vdata_a, self.setall(0.5)) + data_round = [_round(x) for x in vdata_a] + vround = self.round_s32(vdata_a) + assert vround == data_round + +class _SIMD_FP64(_Test_Utility): + """ + To only test double precision + """ + def test_conversions(self): + """ + Round to nearest even integer, assume CPU control register is set to rounding. + Test intrinsics: + npyv_round_s32_##SFX + """ + vdata_a = self.load(self._data()) + vdata_a = self.sub(vdata_a, self.setall(0.5)) + vdata_b = self.mul(vdata_a, self.setall(-1.5)) + data_round = [round(x) for x in list(vdata_a) + list(vdata_b)] + vround = self.round_s32(vdata_a, vdata_b) + assert vround == data_round + +class _SIMD_FP(_Test_Utility): + """ + To test all float vector types at once + """ + def test_arithmetic_fused(self): + vdata_a, vdata_b, vdata_c = [self.load(self._data())] * 3 + vdata_cx2 = self.add(vdata_c, vdata_c) + # multiply and add, a*b + c + data_fma = self.load([a * b + c for a, b, c in zip(vdata_a, vdata_b, vdata_c)]) + fma = self.muladd(vdata_a, vdata_b, vdata_c) + assert fma == data_fma + # multiply and subtract, a*b - c + fms = self.mulsub(vdata_a, vdata_b, vdata_c) + data_fms = self.sub(data_fma, vdata_cx2) + assert fms == data_fms + # negate multiply and add, -(a*b) + c + nfma = self.nmuladd(vdata_a, vdata_b, vdata_c) + data_nfma = self.sub(vdata_cx2, data_fma) + assert nfma == data_nfma + # negate multiply and subtract, -(a*b) - c + nfms = self.nmulsub(vdata_a, vdata_b, vdata_c) + data_nfms = self.mul(data_fma, self.setall(-1)) + assert nfms == data_nfms + # multiply, add for odd elements and subtract even elements. + # (a * b) -+ c + fmas = list(self.muladdsub(vdata_a, vdata_b, vdata_c)) + assert fmas[0::2] == list(data_fms)[0::2] + assert fmas[1::2] == list(data_fma)[1::2] + + def test_abs(self): + pinf, ninf, nan = self._pinfinity(), self._ninfinity(), self._nan() + data = self._data() + vdata = self.load(self._data()) + + abs_cases = ((-0, 0), (ninf, pinf), (pinf, pinf), (nan, nan)) + for case, desired in abs_cases: + data_abs = [desired] * self.nlanes + vabs = self.abs(self.setall(case)) + assert vabs == pytest.approx(data_abs, nan_ok=True) + + vabs = self.abs(self.mul(vdata, self.setall(-1))) + assert vabs == data + + def test_sqrt(self): + pinf, ninf, nan = self._pinfinity(), self._ninfinity(), self._nan() + data = self._data() + vdata = self.load(self._data()) + + sqrt_cases = ((-0.0, -0.0), (0.0, 0.0), (-1.0, nan), (ninf, nan), (pinf, pinf)) + for case, desired in sqrt_cases: + data_sqrt = [desired] * self.nlanes + sqrt = self.sqrt(self.setall(case)) + assert sqrt == pytest.approx(data_sqrt, nan_ok=True) + + # load to truncate precision + data_sqrt = self.load([math.sqrt(x) for x in data]) + sqrt = self.sqrt(vdata) + assert sqrt == data_sqrt + + def test_square(self): + pinf, ninf, nan = self._pinfinity(), self._ninfinity(), self._nan() + data = self._data() + vdata = self.load(self._data()) + # square + square_cases = ((nan, nan), (pinf, pinf), (ninf, pinf)) + for case, desired in square_cases: + data_square = [desired] * self.nlanes + square = self.square(self.setall(case)) + assert square == pytest.approx(data_square, nan_ok=True) + + data_square = [x * x for x in data] + square = self.square(vdata) + assert square == data_square + + @pytest.mark.parametrize("intrin, func", [("ceil", math.ceil), + ("trunc", math.trunc), ("floor", math.floor), ("rint", round)]) + def test_rounding(self, intrin, func): + """ + Test intrinsics: + npyv_rint_##SFX + npyv_ceil_##SFX + npyv_trunc_##SFX + npyv_floor##SFX + """ + intrin_name = intrin + intrin = getattr(self, intrin) + pinf, ninf, nan = self._pinfinity(), self._ninfinity(), self._nan() + # special cases + round_cases = ((nan, nan), (pinf, pinf), (ninf, ninf)) + for case, desired in round_cases: + data_round = [desired] * self.nlanes + _round = intrin(self.setall(case)) + assert _round == pytest.approx(data_round, nan_ok=True) + + for x in range(0, 2**20, 256**2): + for w in (-1.05, -1.10, -1.15, 1.05, 1.10, 1.15): + data = self.load([(x + a) * w for a in range(self.nlanes)]) + data_round = [func(x) for x in data] + _round = intrin(data) + assert _round == data_round + + # test large numbers + for i in ( + 1.1529215045988576e+18, 4.6116860183954304e+18, + 5.902958103546122e+20, 2.3611832414184488e+21 + ): + x = self.setall(i) + y = intrin(x) + data_round = [func(n) for n in x] + assert y == data_round + + # signed zero + if intrin_name == "floor": + data_szero = (-0.0,) + else: + data_szero = (-0.0, -0.25, -0.30, -0.45, -0.5) + + for w in data_szero: + _round = self._to_unsigned(intrin(self.setall(w))) + data_round = self._to_unsigned(self.setall(-0.0)) + assert _round == data_round + + @pytest.mark.parametrize("intrin", [ + "max", "maxp", "maxn", "min", "minp", "minn" + ]) + def test_max_min(self, intrin): + """ + Test intrinsics: + npyv_max_##sfx + npyv_maxp_##sfx + npyv_maxn_##sfx + npyv_min_##sfx + npyv_minp_##sfx + npyv_minn_##sfx + npyv_reduce_max_##sfx + npyv_reduce_maxp_##sfx + npyv_reduce_maxn_##sfx + npyv_reduce_min_##sfx + npyv_reduce_minp_##sfx + npyv_reduce_minn_##sfx + """ + pinf, ninf, nan = self._pinfinity(), self._ninfinity(), self._nan() + chk_nan = {"xp": 1, "np": 1, "nn": 2, "xn": 2}.get(intrin[-2:], 0) + func = eval(intrin[:3]) + reduce_intrin = getattr(self, "reduce_" + intrin) + intrin = getattr(self, intrin) + hf_nlanes = self.nlanes // 2 + + cases = ( + ([0.0, -0.0], [-0.0, 0.0]), + ([10, -10], [10, -10]), + ([pinf, 10], [10, ninf]), + ([10, pinf], [ninf, 10]), + ([10, -10], [10, -10]), + ([-10, 10], [-10, 10]) + ) + for op1, op2 in cases: + vdata_a = self.load(op1 * hf_nlanes) + vdata_b = self.load(op2 * hf_nlanes) + data = func(vdata_a, vdata_b) + simd = intrin(vdata_a, vdata_b) + assert simd == data + data = func(vdata_a) + simd = reduce_intrin(vdata_a) + assert simd == data + + if not chk_nan: + return + if chk_nan == 1: + test_nan = lambda a, b: ( + b if math.isnan(a) else a if math.isnan(b) else b + ) + else: + test_nan = lambda a, b: ( + nan if math.isnan(a) or math.isnan(b) else b + ) + cases = ( + (nan, 10), + (10, nan), + (nan, pinf), + (pinf, nan), + (nan, nan) + ) + for op1, op2 in cases: + vdata_ab = self.load([op1, op2] * hf_nlanes) + data = test_nan(op1, op2) + simd = reduce_intrin(vdata_ab) + assert simd == pytest.approx(data, nan_ok=True) + vdata_a = self.setall(op1) + vdata_b = self.setall(op2) + data = [data] * self.nlanes + simd = intrin(vdata_a, vdata_b) + assert simd == pytest.approx(data, nan_ok=True) + + def test_reciprocal(self): + pinf, ninf, nan = self._pinfinity(), self._ninfinity(), self._nan() + data = self._data() + vdata = self.load(self._data()) + + recip_cases = ((nan, nan), (pinf, 0.0), (ninf, -0.0), (0.0, pinf), (-0.0, ninf)) + for case, desired in recip_cases: + data_recip = [desired] * self.nlanes + recip = self.recip(self.setall(case)) + assert recip == pytest.approx(data_recip, nan_ok=True) + + data_recip = self.load([1 / x for x in data]) # load to truncate precision + recip = self.recip(vdata) + assert recip == data_recip + + def test_special_cases(self): + """ + Compare Not NaN. Test intrinsics: + npyv_notnan_##SFX + """ + nnan = self.notnan(self.setall(self._nan())) + assert nnan == [0] * self.nlanes + + @pytest.mark.parametrize("intrin_name", [ + "rint", "trunc", "ceil", "floor" + ]) + def test_unary_invalid_fpexception(self, intrin_name): + intrin = getattr(self, intrin_name) + for d in [float("nan"), float("inf"), -float("inf")]: + v = self.setall(d) + clear_floatstatus() + intrin(v) + assert check_floatstatus(invalid=True) is False + + @pytest.mark.parametrize('py_comp,np_comp', [ + (operator.lt, "cmplt"), + (operator.le, "cmple"), + (operator.gt, "cmpgt"), + (operator.ge, "cmpge"), + (operator.eq, "cmpeq"), + (operator.ne, "cmpneq") + ]) + def test_comparison_with_nan(self, py_comp, np_comp): + pinf, ninf, nan = self._pinfinity(), self._ninfinity(), self._nan() + mask_true = self._true_mask() + + def to_bool(vector): + return [lane == mask_true for lane in vector] + + intrin = getattr(self, np_comp) + cmp_cases = ((0, nan), (nan, 0), (nan, nan), (pinf, nan), + (ninf, nan), (-0.0, +0.0)) + for case_operand1, case_operand2 in cmp_cases: + data_a = [case_operand1] * self.nlanes + data_b = [case_operand2] * self.nlanes + vdata_a = self.setall(case_operand1) + vdata_b = self.setall(case_operand2) + vcmp = to_bool(intrin(vdata_a, vdata_b)) + data_cmp = [py_comp(a, b) for a, b in zip(data_a, data_b)] + assert vcmp == data_cmp + + @pytest.mark.parametrize("intrin", ["any", "all"]) + @pytest.mark.parametrize("data", ( + [float("nan"), 0], + [0, float("nan")], + [float("nan"), 1], + [1, float("nan")], + [float("nan"), float("nan")], + [0.0, -0.0], + [-0.0, 0.0], + [1.0, -0.0] + )) + def test_operators_crosstest(self, intrin, data): + """ + Test intrinsics: + npyv_any_##SFX + npyv_all_##SFX + """ + data_a = self.load(data * self.nlanes) + func = eval(intrin) + intrin = getattr(self, intrin) + desired = func(data_a) + simd = intrin(data_a) + assert not not simd == desired + +class _SIMD_ALL(_Test_Utility): + """ + To test all vector types at once + """ + def test_memory_load(self): + data = self._data() + # unaligned load + load_data = self.load(data) + assert load_data == data + # aligned load + loada_data = self.loada(data) + assert loada_data == data + # stream load + loads_data = self.loads(data) + assert loads_data == data + # load lower part + loadl = self.loadl(data) + loadl_half = list(loadl)[:self.nlanes // 2] + data_half = data[:self.nlanes // 2] + assert loadl_half == data_half + assert loadl != data # detect overflow + + def test_memory_store(self): + data = self._data() + vdata = self.load(data) + # unaligned store + store = [0] * self.nlanes + self.store(store, vdata) + assert store == data + # aligned store + store_a = [0] * self.nlanes + self.storea(store_a, vdata) + assert store_a == data + # stream store + store_s = [0] * self.nlanes + self.stores(store_s, vdata) + assert store_s == data + # store lower part + store_l = [0] * self.nlanes + self.storel(store_l, vdata) + assert store_l[:self.nlanes // 2] == data[:self.nlanes // 2] + assert store_l != vdata # detect overflow + # store higher part + store_h = [0] * self.nlanes + self.storeh(store_h, vdata) + assert store_h[:self.nlanes // 2] == data[self.nlanes // 2:] + assert store_h != vdata # detect overflow + + @pytest.mark.parametrize("intrin, elsizes, scale, fill", [ + ("self.load_tillz, self.load_till", (32, 64), 1, [0xffff]), + ("self.load2_tillz, self.load2_till", (32, 64), 2, [0xffff, 0x7fff]), + ]) + def test_memory_partial_load(self, intrin, elsizes, scale, fill): + if self._scalar_size() not in elsizes: + return + npyv_load_tillz, npyv_load_till = eval(intrin) + data = self._data() + lanes = list(range(1, self.nlanes + 1)) + lanes += [self.nlanes**2, self.nlanes**4] # test out of range + for n in lanes: + load_till = npyv_load_till(data, n, *fill) + load_tillz = npyv_load_tillz(data, n) + n *= scale + data_till = data[:n] + fill * ((self.nlanes - n) // scale) + assert load_till == data_till + data_tillz = data[:n] + [0] * (self.nlanes - n) + assert load_tillz == data_tillz + + @pytest.mark.parametrize("intrin, elsizes, scale", [ + ("self.store_till", (32, 64), 1), + ("self.store2_till", (32, 64), 2), + ]) + def test_memory_partial_store(self, intrin, elsizes, scale): + if self._scalar_size() not in elsizes: + return + npyv_store_till = eval(intrin) + data = self._data() + data_rev = self._data(reverse=True) + vdata = self.load(data) + lanes = list(range(1, self.nlanes + 1)) + lanes += [self.nlanes**2, self.nlanes**4] + for n in lanes: + data_till = data_rev.copy() + data_till[:n * scale] = data[:n * scale] + store_till = self._data(reverse=True) + npyv_store_till(store_till, n, vdata) + assert store_till == data_till + + @pytest.mark.parametrize("intrin, elsizes, scale", [ + ("self.loadn", (32, 64), 1), + ("self.loadn2", (32, 64), 2), + ]) + def test_memory_noncont_load(self, intrin, elsizes, scale): + if self._scalar_size() not in elsizes: + return + npyv_loadn = eval(intrin) + for stride in range(-64, 64): + if stride < 0: + data = self._data(stride, -stride * self.nlanes) + data_stride = list(itertools.chain( + *zip(*[data[-i::stride] for i in range(scale, 0, -1)]) + )) + elif stride == 0: + data = self._data() + data_stride = data[0:scale] * (self.nlanes // scale) + else: + data = self._data(count=stride * self.nlanes) + data_stride = list(itertools.chain( + *zip(*[data[i::stride] for i in range(scale)])) + ) + data_stride = self.load(data_stride) # cast unsigned + loadn = npyv_loadn(data, stride) + assert loadn == data_stride + + @pytest.mark.parametrize("intrin, elsizes, scale, fill", [ + ("self.loadn_tillz, self.loadn_till", (32, 64), 1, [0xffff]), + ("self.loadn2_tillz, self.loadn2_till", (32, 64), 2, [0xffff, 0x7fff]), + ]) + def test_memory_noncont_partial_load(self, intrin, elsizes, scale, fill): + if self._scalar_size() not in elsizes: + return + npyv_loadn_tillz, npyv_loadn_till = eval(intrin) + lanes = list(range(1, self.nlanes + 1)) + lanes += [self.nlanes**2, self.nlanes**4] + for stride in range(-64, 64): + if stride < 0: + data = self._data(stride, -stride * self.nlanes) + data_stride = list(itertools.chain( + *zip(*[data[-i::stride] for i in range(scale, 0, -1)]) + )) + elif stride == 0: + data = self._data() + data_stride = data[0:scale] * (self.nlanes // scale) + else: + data = self._data(count=stride * self.nlanes) + data_stride = list(itertools.chain( + *zip(*[data[i::stride] for i in range(scale)]) + )) + data_stride = list(self.load(data_stride)) # cast unsigned + for n in lanes: + nscale = n * scale + llanes = self.nlanes - nscale + data_stride_till = ( + data_stride[:nscale] + fill * (llanes // scale) + ) + loadn_till = npyv_loadn_till(data, stride, n, *fill) + assert loadn_till == data_stride_till + data_stride_tillz = data_stride[:nscale] + [0] * llanes + loadn_tillz = npyv_loadn_tillz(data, stride, n) + assert loadn_tillz == data_stride_tillz + + @pytest.mark.parametrize("intrin, elsizes, scale", [ + ("self.storen", (32, 64), 1), + ("self.storen2", (32, 64), 2), + ]) + def test_memory_noncont_store(self, intrin, elsizes, scale): + if self._scalar_size() not in elsizes: + return + npyv_storen = eval(intrin) + data = self._data() + vdata = self.load(data) + hlanes = self.nlanes // scale + for stride in range(1, 64): + data_storen = [0xff] * stride * self.nlanes + for s in range(0, hlanes * stride, stride): + i = (s // stride) * scale + data_storen[s:s + scale] = data[i:i + scale] + storen = [0xff] * stride * self.nlanes + storen += [0x7f] * 64 + npyv_storen(storen, stride, vdata) + assert storen[:-64] == data_storen + assert storen[-64:] == [0x7f] * 64 # detect overflow + + for stride in range(-64, 0): + data_storen = [0xff] * -stride * self.nlanes + for s in range(0, hlanes * stride, stride): + i = (s // stride) * scale + data_storen[s - scale:s or None] = data[i:i + scale] + storen = [0x7f] * 64 + storen += [0xff] * -stride * self.nlanes + npyv_storen(storen, stride, vdata) + assert storen[64:] == data_storen + assert storen[:64] == [0x7f] * 64 # detect overflow + # stride 0 + data_storen = [0x7f] * self.nlanes + storen = data_storen.copy() + data_storen[0:scale] = data[-scale:] + npyv_storen(storen, 0, vdata) + assert storen == data_storen + + @pytest.mark.parametrize("intrin, elsizes, scale", [ + ("self.storen_till", (32, 64), 1), + ("self.storen2_till", (32, 64), 2), + ]) + def test_memory_noncont_partial_store(self, intrin, elsizes, scale): + if self._scalar_size() not in elsizes: + return + npyv_storen_till = eval(intrin) + data = self._data() + vdata = self.load(data) + lanes = list(range(1, self.nlanes + 1)) + lanes += [self.nlanes**2, self.nlanes**4] + hlanes = self.nlanes // scale + for stride in range(1, 64): + for n in lanes: + data_till = [0xff] * stride * self.nlanes + tdata = data[:n * scale] + [0xff] * (self.nlanes - n * scale) + for s in range(0, hlanes * stride, stride)[:n]: + i = (s // stride) * scale + data_till[s:s + scale] = tdata[i:i + scale] + storen_till = [0xff] * stride * self.nlanes + storen_till += [0x7f] * 64 + npyv_storen_till(storen_till, stride, n, vdata) + assert storen_till[:-64] == data_till + assert storen_till[-64:] == [0x7f] * 64 # detect overflow + + for stride in range(-64, 0): + for n in lanes: + data_till = [0xff] * -stride * self.nlanes + tdata = data[:n * scale] + [0xff] * (self.nlanes - n * scale) + for s in range(0, hlanes * stride, stride)[:n]: + i = (s // stride) * scale + data_till[s - scale:s or None] = tdata[i:i + scale] + storen_till = [0x7f] * 64 + storen_till += [0xff] * -stride * self.nlanes + npyv_storen_till(storen_till, stride, n, vdata) + assert storen_till[64:] == data_till + assert storen_till[:64] == [0x7f] * 64 # detect overflow + + # stride 0 + for n in lanes: + data_till = [0x7f] * self.nlanes + storen_till = data_till.copy() + data_till[0:scale] = data[:n * scale][-scale:] + npyv_storen_till(storen_till, 0, n, vdata) + assert storen_till == data_till + + @pytest.mark.parametrize("intrin, table_size, elsize", [ + ("self.lut32", 32, 32), + ("self.lut16", 16, 64) + ]) + def test_lut(self, intrin, table_size, elsize): + """ + Test lookup table intrinsics: + npyv_lut32_##sfx + npyv_lut16_##sfx + """ + if elsize != self._scalar_size(): + return + intrin = eval(intrin) + idx_itrin = getattr(self.npyv, f"setall_u{elsize}") + table = range(table_size) + for i in table: + broadi = self.setall(i) + idx = idx_itrin(i) + lut = intrin(table, idx) + assert lut == broadi + + def test_misc(self): + broadcast_zero = self.zero() + assert broadcast_zero == [0] * self.nlanes + for i in range(1, 10): + broadcasti = self.setall(i) + assert broadcasti == [i] * self.nlanes + + data_a, data_b = self._data(), self._data(reverse=True) + vdata_a, vdata_b = self.load(data_a), self.load(data_b) + + # py level of npyv_set_* don't support ignoring the extra specified lanes or + # fill non-specified lanes with zero. + vset = self.set(*data_a) + assert vset == data_a + # py level of npyv_setf_* don't support ignoring the extra specified lanes or + # fill non-specified lanes with the specified scalar. + vsetf = self.setf(10, *data_a) + assert vsetf == data_a + + # We're testing the sanity of _simd's type-vector, + # reinterpret* intrinsics itself are tested via compiler + # during the build of _simd module + sfxes = ["u8", "s8", "u16", "s16", "u32", "s32", "u64", "s64"] + if self.npyv.simd_f64: + sfxes.append("f64") + if self.npyv.simd_f32: + sfxes.append("f32") + for sfx in sfxes: + vec_name = getattr(self, "reinterpret_" + sfx)(vdata_a).__name__ + assert vec_name == "npyv_" + sfx + + # select & mask operations + select_a = self.select(self.cmpeq(self.zero(), self.zero()), vdata_a, vdata_b) + assert select_a == data_a + select_b = self.select(self.cmpneq(self.zero(), self.zero()), vdata_a, vdata_b) + assert select_b == data_b + + # test extract elements + assert self.extract0(vdata_b) == vdata_b[0] + + # cleanup intrinsic is only used with AVX for + # zeroing registers to avoid the AVX-SSE transition penalty, + # so nothing to test here + self.npyv.cleanup() + + def test_reorder(self): + data_a, data_b = self._data(), self._data(reverse=True) + vdata_a, vdata_b = self.load(data_a), self.load(data_b) + # lower half part + data_a_lo = data_a[:self.nlanes // 2] + data_b_lo = data_b[:self.nlanes // 2] + # higher half part + data_a_hi = data_a[self.nlanes // 2:] + data_b_hi = data_b[self.nlanes // 2:] + # combine two lower parts + combinel = self.combinel(vdata_a, vdata_b) + assert combinel == data_a_lo + data_b_lo + # combine two higher parts + combineh = self.combineh(vdata_a, vdata_b) + assert combineh == data_a_hi + data_b_hi + # combine x2 + combine = self.combine(vdata_a, vdata_b) + assert combine == (data_a_lo + data_b_lo, data_a_hi + data_b_hi) + + # zip(interleave) + data_zipl = self.load([ + v for p in zip(data_a_lo, data_b_lo) for v in p + ]) + data_ziph = self.load([ + v for p in zip(data_a_hi, data_b_hi) for v in p + ]) + vzip = self.zip(vdata_a, vdata_b) + assert vzip == (data_zipl, data_ziph) + vzip = [0] * self.nlanes * 2 + self._x2("store")(vzip, (vdata_a, vdata_b)) + assert vzip == list(data_zipl) + list(data_ziph) + + # unzip(deinterleave) + unzip = self.unzip(data_zipl, data_ziph) + assert unzip == (data_a, data_b) + unzip = self._x2("load")(list(data_zipl) + list(data_ziph)) + assert unzip == (data_a, data_b) + + def test_reorder_rev64(self): + # Reverse elements of each 64-bit lane + ssize = self._scalar_size() + if ssize == 64: + return + data_rev64 = [ + y for x in range(0, self.nlanes, 64 // ssize) + for y in reversed(range(x, x + 64 // ssize)) + ] + rev64 = self.rev64(self.load(range(self.nlanes))) + assert rev64 == data_rev64 + + def test_reorder_permi128(self): + """ + Test permuting elements for each 128-bit lane. + npyv_permi128_##sfx + """ + ssize = self._scalar_size() + if ssize < 32: + return + data = self.load(self._data()) + permn = 128 // ssize + permd = permn - 1 + nlane128 = self.nlanes // permn + shfl = [0, 1] if ssize == 64 else [0, 2, 4, 6] + for i in range(permn): + indices = [(i >> shf) & permd for shf in shfl] + vperm = self.permi128(data, *indices) + data_vperm = [ + data[j + (e & -permn)] + for e, j in enumerate(indices * nlane128) + ] + assert vperm == data_vperm + + @pytest.mark.parametrize('func, intrin', [ + (operator.lt, "cmplt"), + (operator.le, "cmple"), + (operator.gt, "cmpgt"), + (operator.ge, "cmpge"), + (operator.eq, "cmpeq") + ]) + def test_operators_comparison(self, func, intrin): + if self._is_fp(): + data_a = self._data() + else: + data_a = self._data(self._int_max() - self.nlanes) + data_b = self._data(self._int_min(), reverse=True) + vdata_a, vdata_b = self.load(data_a), self.load(data_b) + intrin = getattr(self, intrin) + + mask_true = self._true_mask() + + def to_bool(vector): + return [lane == mask_true for lane in vector] + + data_cmp = [func(a, b) for a, b in zip(data_a, data_b)] + cmp = to_bool(intrin(vdata_a, vdata_b)) + assert cmp == data_cmp + + def test_operators_logical(self): + if self._is_fp(): + data_a = self._data() + else: + data_a = self._data(self._int_max() - self.nlanes) + data_b = self._data(self._int_min(), reverse=True) + vdata_a, vdata_b = self.load(data_a), self.load(data_b) + + if self._is_fp(): + data_cast_a = self._to_unsigned(vdata_a) + data_cast_b = self._to_unsigned(vdata_b) + cast, cast_data = self._to_unsigned, self._to_unsigned + else: + data_cast_a, data_cast_b = data_a, data_b + cast, cast_data = lambda a: a, self.load + + data_xor = cast_data([a ^ b for a, b in zip(data_cast_a, data_cast_b)]) + vxor = cast(self.xor(vdata_a, vdata_b)) + assert vxor == data_xor + + data_or = cast_data([a | b for a, b in zip(data_cast_a, data_cast_b)]) + vor = cast(getattr(self, "or")(vdata_a, vdata_b)) + assert vor == data_or + + data_and = cast_data([a & b for a, b in zip(data_cast_a, data_cast_b)]) + vand = cast(getattr(self, "and")(vdata_a, vdata_b)) + assert vand == data_and + + data_not = cast_data([~a for a in data_cast_a]) + vnot = cast(getattr(self, "not")(vdata_a)) + assert vnot == data_not + + if self.sfx not in ("u8"): + return + data_andc = [a & ~b for a, b in zip(data_cast_a, data_cast_b)] + vandc = cast(self.andc(vdata_a, vdata_b)) + assert vandc == data_andc + + @pytest.mark.parametrize("intrin", ["any", "all"]) + @pytest.mark.parametrize("data", ( + [1, 2, 3, 4], + [-1, -2, -3, -4], + [0, 1, 2, 3, 4], + [0x7f, 0x7fff, 0x7fffffff, 0x7fffffffffffffff], + [0, -1, -2, -3, 4], + [0], + [1], + [-1] + )) + def test_operators_crosstest(self, intrin, data): + """ + Test intrinsics: + npyv_any_##SFX + npyv_all_##SFX + """ + data_a = self.load(data * self.nlanes) + func = eval(intrin) + intrin = getattr(self, intrin) + desired = func(data_a) + simd = intrin(data_a) + assert not not simd == desired + + def test_conversion_boolean(self): + bsfx = "b" + self.sfx[1:] + to_boolean = getattr(self.npyv, f"cvt_{bsfx}_{self.sfx}") + from_boolean = getattr(self.npyv, f"cvt_{self.sfx}_{bsfx}") + + false_vb = to_boolean(self.setall(0)) + true_vb = self.cmpeq(self.setall(0), self.setall(0)) + assert false_vb != true_vb + + false_vsfx = from_boolean(false_vb) + true_vsfx = from_boolean(true_vb) + assert false_vsfx != true_vsfx + + def test_conversion_expand(self): + """ + Test expand intrinsics: + npyv_expand_u16_u8 + npyv_expand_u32_u16 + """ + if self.sfx not in ("u8", "u16"): + return + totype = self.sfx[0] + str(int(self.sfx[1:]) * 2) + expand = getattr(self.npyv, f"expand_{totype}_{self.sfx}") + # close enough from the edge to detect any deviation + data = self._data(self._int_max() - self.nlanes) + vdata = self.load(data) + edata = expand(vdata) + # lower half part + data_lo = data[:self.nlanes // 2] + # higher half part + data_hi = data[self.nlanes // 2:] + assert edata == (data_lo, data_hi) + + def test_arithmetic_subadd(self): + if self._is_fp(): + data_a = self._data() + else: + data_a = self._data(self._int_max() - self.nlanes) + data_b = self._data(self._int_min(), reverse=True) + vdata_a, vdata_b = self.load(data_a), self.load(data_b) + + # non-saturated + data_add = self.load([a + b for a, b in zip(data_a, data_b)]) # load to cast + add = self.add(vdata_a, vdata_b) + assert add == data_add + data_sub = self.load([a - b for a, b in zip(data_a, data_b)]) + sub = self.sub(vdata_a, vdata_b) + assert sub == data_sub + + def test_arithmetic_mul(self): + if self.sfx in ("u64", "s64"): + return + + if self._is_fp(): + data_a = self._data() + else: + data_a = self._data(self._int_max() - self.nlanes) + data_b = self._data(self._int_min(), reverse=True) + vdata_a, vdata_b = self.load(data_a), self.load(data_b) + + data_mul = self.load([a * b for a, b in zip(data_a, data_b)]) + mul = self.mul(vdata_a, vdata_b) + assert mul == data_mul + + def test_arithmetic_div(self): + if not self._is_fp(): + return + + data_a, data_b = self._data(), self._data(reverse=True) + vdata_a, vdata_b = self.load(data_a), self.load(data_b) + + # load to truncate f64 to precision of f32 + data_div = self.load([a / b for a, b in zip(data_a, data_b)]) + div = self.div(vdata_a, vdata_b) + assert div == data_div + + def test_arithmetic_intdiv(self): + """ + Test integer division intrinsics: + npyv_divisor_##sfx + npyv_divc_##sfx + """ + if self._is_fp(): + return + + int_min = self._int_min() + + def trunc_div(a, d): + """ + Divide towards zero works with large integers > 2^53, + and wrap around overflow similar to what C does. + """ + if d == -1 and a == int_min: + return a + sign_a, sign_d = a < 0, d < 0 + if a == 0 or sign_a == sign_d: + return a // d + return (a + sign_d - sign_a) // d + 1 + + data = [1, -int_min] # to test overflow + data += range(0, 2**8, 2**5) + data += range(0, 2**8, 2**5 - 1) + bsize = self._scalar_size() + if bsize > 8: + data += range(2**8, 2**16, 2**13) + data += range(2**8, 2**16, 2**13 - 1) + if bsize > 16: + data += range(2**16, 2**32, 2**29) + data += range(2**16, 2**32, 2**29 - 1) + if bsize > 32: + data += range(2**32, 2**64, 2**61) + data += range(2**32, 2**64, 2**61 - 1) + # negate + data += [-x for x in data] + for dividend, divisor in itertools.product(data, data): + divisor = self.setall(divisor)[0] # cast + if divisor == 0: + continue + dividend = self.load(self._data(dividend)) + data_divc = [trunc_div(a, divisor) for a in dividend] + divisor_parms = self.divisor(divisor) + divc = self.divc(dividend, divisor_parms) + assert divc == data_divc + + def test_arithmetic_reduce_sum(self): + """ + Test reduce sum intrinsics: + npyv_sum_##sfx + """ + if self.sfx not in ("u32", "u64", "f32", "f64"): + return + # reduce sum + data = self._data() + vdata = self.load(data) + + data_sum = sum(data) + vsum = self.sum(vdata) + assert vsum == data_sum + + def test_arithmetic_reduce_sumup(self): + """ + Test extend reduce sum intrinsics: + npyv_sumup_##sfx + """ + if self.sfx not in ("u8", "u16"): + return + rdata = (0, self.nlanes, self._int_min(), self._int_max() - self.nlanes) + for r in rdata: + data = self._data(r) + vdata = self.load(data) + data_sum = sum(data) + vsum = self.sumup(vdata) + assert vsum == data_sum + + def test_mask_conditional(self): + """ + Conditional addition and subtraction for all supported data types. + Test intrinsics: + npyv_ifadd_##SFX, npyv_ifsub_##SFX + """ + vdata_a = self.load(self._data()) + vdata_b = self.load(self._data(reverse=True)) + true_mask = self.cmpeq(self.zero(), self.zero()) + false_mask = self.cmpneq(self.zero(), self.zero()) + + data_sub = self.sub(vdata_b, vdata_a) + ifsub = self.ifsub(true_mask, vdata_b, vdata_a, vdata_b) + assert ifsub == data_sub + ifsub = self.ifsub(false_mask, vdata_a, vdata_b, vdata_b) + assert ifsub == vdata_b + + data_add = self.add(vdata_b, vdata_a) + ifadd = self.ifadd(true_mask, vdata_b, vdata_a, vdata_b) + assert ifadd == data_add + ifadd = self.ifadd(false_mask, vdata_a, vdata_b, vdata_b) + assert ifadd == vdata_b + + if not self._is_fp(): + return + data_div = self.div(vdata_b, vdata_a) + ifdiv = self.ifdiv(true_mask, vdata_b, vdata_a, vdata_b) + assert ifdiv == data_div + ifdivz = self.ifdivz(true_mask, vdata_b, vdata_a) + assert ifdivz == data_div + ifdiv = self.ifdiv(false_mask, vdata_a, vdata_b, vdata_b) + assert ifdiv == vdata_b + ifdivz = self.ifdivz(false_mask, vdata_a, vdata_b) + assert ifdivz == self.zero() + + +bool_sfx = ("b8", "b16", "b32", "b64") +int_sfx = ("u8", "s8", "u16", "s16", "u32", "s32", "u64", "s64") +fp_sfx = ("f32", "f64") +all_sfx = int_sfx + fp_sfx +tests_registry = { + bool_sfx: _SIMD_BOOL, + int_sfx: _SIMD_INT, + fp_sfx: _SIMD_FP, + ("f32",): _SIMD_FP32, + ("f64",): _SIMD_FP64, + all_sfx: _SIMD_ALL +} +for target_name, npyv in targets.items(): + simd_width = npyv.simd if npyv else '' + pretty_name = target_name.split('__') # multi-target separator + if len(pretty_name) > 1: + # multi-target + pretty_name = f"({' '.join(pretty_name)})" + else: + pretty_name = pretty_name[0] + + skip = "" + skip_sfx = {} + if not npyv: + skip = f"target '{pretty_name}' isn't supported by current machine" + elif not npyv.simd: + skip = f"target '{pretty_name}' isn't supported by NPYV" + else: + if not npyv.simd_f32: + skip_sfx["f32"] = f"target '{pretty_name}' "\ + "doesn't support single-precision" + if not npyv.simd_f64: + skip_sfx["f64"] = f"target '{pretty_name}' doesn't"\ + "support double-precision" + + for sfxes, cls in tests_registry.items(): + for sfx in sfxes: + skip_m = skip_sfx.get(sfx, skip) + inhr = (cls,) + attr = {"npyv": targets[target_name], "sfx": sfx, + "target_name": target_name} + type_name = f"Test{cls.__name__}_{simd_width}_{target_name}_{sfx}" + tcls = type(type_name, inhr, attr) + if skip_m: + pytest.mark.skip(reason=skip_m)(tcls) + globals()[tcls.__name__] = tcls diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_simd_module.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_simd_module.py new file mode 100644 index 0000000000000000000000000000000000000000..3de1596aa10a69d98d520921ad0d6b877652e8b5 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_simd_module.py @@ -0,0 +1,105 @@ +import pytest + +from numpy._core._simd import targets + +""" +This testing unit only for checking the sanity of common functionality, +therefore all we need is just to take one submodule that represents any +of enabled SIMD extensions to run the test on it and the second submodule +required to run only one check related to the possibility of mixing +the data types among each submodule. +""" +npyvs = [npyv_mod for npyv_mod in targets.values() if npyv_mod and npyv_mod.simd] +npyv, npyv2 = (npyvs + [None, None])[:2] + +unsigned_sfx = ["u8", "u16", "u32", "u64"] +signed_sfx = ["s8", "s16", "s32", "s64"] +fp_sfx = [] +if npyv and npyv.simd_f32: + fp_sfx.append("f32") +if npyv and npyv.simd_f64: + fp_sfx.append("f64") + +int_sfx = unsigned_sfx + signed_sfx +all_sfx = unsigned_sfx + int_sfx + +@pytest.mark.skipif(not npyv, + reason="could not find any SIMD extension with NPYV support") +class Test_SIMD_MODULE: + + @pytest.mark.parametrize('sfx', all_sfx) + def test_num_lanes(self, sfx): + nlanes = getattr(npyv, "nlanes_" + sfx) + vector = getattr(npyv, "setall_" + sfx)(1) + assert len(vector) == nlanes + + @pytest.mark.parametrize('sfx', all_sfx) + def test_type_name(self, sfx): + vector = getattr(npyv, "setall_" + sfx)(1) + assert vector.__name__ == "npyv_" + sfx + + def test_raises(self): + a, b = [npyv.setall_u32(1)] * 2 + for sfx in all_sfx: + vcb = lambda intrin: getattr(npyv, f"{intrin}_{sfx}") + pytest.raises(TypeError, vcb("add"), a) + pytest.raises(TypeError, vcb("add"), a, b, a) + pytest.raises(TypeError, vcb("setall")) + pytest.raises(TypeError, vcb("setall"), [1]) + pytest.raises(TypeError, vcb("load"), 1) + pytest.raises(ValueError, vcb("load"), [1]) + value = getattr(npyv, f"reinterpret_{sfx}_u32")(a) + pytest.raises(ValueError, vcb("store"), [1], value) + + @pytest.mark.skipif(not npyv2, reason=( + "could not find a second SIMD extension with NPYV support" + )) + def test_nomix(self): + # mix among submodules isn't allowed + a = npyv.setall_u32(1) + a2 = npyv2.setall_u32(1) + pytest.raises(TypeError, npyv.add_u32, a2, a2) + pytest.raises(TypeError, npyv2.add_u32, a, a) + + @pytest.mark.parametrize('sfx', unsigned_sfx) + def test_unsigned_overflow(self, sfx): + nlanes = getattr(npyv, "nlanes_" + sfx) + maxu = (1 << int(sfx[1:])) - 1 + maxu_72 = (1 << 72) - 1 + lane = getattr(npyv, "setall_" + sfx)(maxu_72)[0] + assert lane == maxu + lanes = getattr(npyv, "load_" + sfx)([maxu_72] * nlanes) + assert lanes == [maxu] * nlanes + lane = getattr(npyv, "setall_" + sfx)(-1)[0] + assert lane == maxu + lanes = getattr(npyv, "load_" + sfx)([-1] * nlanes) + assert lanes == [maxu] * nlanes + + @pytest.mark.parametrize('sfx', signed_sfx) + def test_signed_overflow(self, sfx): + nlanes = getattr(npyv, "nlanes_" + sfx) + maxs_72 = (1 << 71) - 1 + lane = getattr(npyv, "setall_" + sfx)(maxs_72)[0] + assert lane == -1 + lanes = getattr(npyv, "load_" + sfx)([maxs_72] * nlanes) + assert lanes == [-1] * nlanes + mins_72 = -1 << 71 + lane = getattr(npyv, "setall_" + sfx)(mins_72)[0] + assert lane == 0 + lanes = getattr(npyv, "load_" + sfx)([mins_72] * nlanes) + assert lanes == [0] * nlanes + + def test_truncate_f32(self): + if not npyv.simd_f32: + pytest.skip("F32 isn't support by the SIMD extension") + f32 = npyv.setall_f32(0.1)[0] + assert f32 != 0.1 + assert round(f32, 1) == 0.1 + + def test_compare(self): + data_range = range(npyv.nlanes_u32) + vdata = npyv.load_u32(data_range) + assert vdata == list(data_range) + assert vdata == tuple(data_range) + for i in data_range: + assert vdata[i] == data_range[i] diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_stringdtype.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_stringdtype.py new file mode 100644 index 0000000000000000000000000000000000000000..492894087aa91b55ca75b3c5e33ab92bd42e54e9 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_stringdtype.py @@ -0,0 +1,1855 @@ +import copy +import itertools +import os +import pickle +import string +import sys +import tempfile + +import pytest + +import numpy as np +from numpy._core.tests._natype import pd_NA +from numpy.dtypes import StringDType +from numpy.testing import IS_PYPY, assert_array_equal + + +def random_unicode_string_list(): + """Returns an array of 10 100-character strings containing random text""" + chars = list(string.ascii_letters + string.digits) + chars = np.array(chars, dtype="U1") + ret = np.random.choice(chars, size=100 * 10, replace=True) + return ret.view("U100") + + +def get_dtype(na_object, coerce=True): + """Helper to work around pd_NA boolean behavior""" + # explicit is check for pd_NA because != with pd_NA returns pd_NA + if na_object is pd_NA or na_object != "unset": + return np.dtypes.StringDType(na_object=na_object, coerce=coerce) + else: + return np.dtypes.StringDType(coerce=coerce) + + +@pytest.fixture(params=[True, False]) +def coerce(request): + """Coerce input to strings or raise an error for non-string input""" + return request.param + + +@pytest.fixture( + params=["unset", None, pd_NA, np.nan, float("nan"), "__nan__"], + ids=["unset", "None", "pandas.NA", "np.nan", "float('nan')", "string nan"], +) +def na_object(request): + """Possible values for the missing data sentinel""" + return request.param + + +@pytest.fixture() +def dtype(na_object, coerce): + """Cartesian project of missing data sentinel and string coercion options""" + return get_dtype(na_object, coerce) + +@pytest.fixture +def string_list(): + """Mix of short and long strings, some with unicode, some without""" + return ["abc", "def", "ghi" * 10, "A¢☃€ 😊" * 100, "Abc" * 1000, "DEF"] + + +@pytest.fixture(params=[True, False]) +def coerce2(request): + """Second copy of the coerce fixture for tests that need two instances""" + return request.param + + +@pytest.fixture( + params=["unset", None, pd_NA, np.nan, float("nan"), "__nan__"], + ids=["unset", "None", "pandas.NA", "np.nan", "float('nan')", "string nan"], +) +def na_object2(request): + """Second copy of the na_object fixture for tests that need two instances""" + return request.param + + +@pytest.fixture() +def dtype2(na_object2, coerce2): + """Second copy of the dtype fixture for tests that need two instances""" + # explicit is check for pd_NA because != with pd_NA returns pd_NA + if na_object2 is pd_NA or na_object2 != "unset": + return StringDType(na_object=na_object2, coerce=coerce2) + else: + return StringDType(coerce=coerce2) + + +def test_dtype_creation(): + hashes = set() + dt = StringDType() + assert not hasattr(dt, "na_object") and dt.coerce is True + hashes.add(hash(dt)) + + dt = StringDType(na_object=None) + assert dt.na_object is None and dt.coerce is True + hashes.add(hash(dt)) + + dt = StringDType(coerce=False) + assert not hasattr(dt, "na_object") and dt.coerce is False + hashes.add(hash(dt)) + + dt = StringDType(na_object=None, coerce=False) + assert dt.na_object is None and dt.coerce is False + hashes.add(hash(dt)) + + assert len(hashes) == 4 + + dt = np.dtype("T") + assert dt == StringDType() + assert dt.kind == "T" + assert dt.char == "T" + + hashes.add(hash(dt)) + assert len(hashes) == 4 + + +def test_dtype_equality(dtype): + assert dtype == dtype + for ch in "SU": + assert dtype != np.dtype(ch) + assert dtype != np.dtype(f"{ch}8") + + +def test_dtype_repr(dtype): + if not hasattr(dtype, "na_object") and dtype.coerce: + assert repr(dtype) == "StringDType()" + elif dtype.coerce: + assert repr(dtype) == f"StringDType(na_object={dtype.na_object!r})" + elif not hasattr(dtype, "na_object"): + assert repr(dtype) == "StringDType(coerce=False)" + else: + assert ( + repr(dtype) + == f"StringDType(na_object={dtype.na_object!r}, coerce=False)" + ) + + +def test_create_with_na(dtype): + if not hasattr(dtype, "na_object"): + pytest.skip("does not have an na object") + na_val = dtype.na_object + string_list = ["hello", na_val, "world"] + arr = np.array(string_list, dtype=dtype) + assert str(arr) == "[" + " ".join([repr(s) for s in string_list]) + "]" + assert arr[1] is dtype.na_object + + +@pytest.mark.parametrize("i", list(range(5))) +def test_set_replace_na(i): + # Test strings of various lengths can be set to NaN and then replaced. + s_empty = "" + s_short = "0123456789" + s_medium = "abcdefghijklmnopqrstuvwxyz" + s_long = "-=+" * 100 + strings = [s_medium, s_empty, s_short, s_medium, s_long] + a = np.array(strings, StringDType(na_object=np.nan)) + for s in [a[i], s_medium + s_short, s_short, s_empty, s_long]: + a[i] = np.nan + assert np.isnan(a[i]) + a[i] = s + assert a[i] == s + assert_array_equal(a, strings[:i] + [s] + strings[i + 1:]) + + +def test_null_roundtripping(): + data = ["hello\0world", "ABC\0DEF\0\0"] + arr = np.array(data, dtype="T") + assert data[0] == arr[0] + assert data[1] == arr[1] + + +def test_string_too_large_error(): + arr = np.array(["a", "b", "c"], dtype=StringDType()) + with pytest.raises(OverflowError): + arr * (sys.maxsize + 1) + + +@pytest.mark.parametrize( + "data", + [ + ["abc", "def", "ghi"], + ["🤣", "📵", "😰"], + ["🚜", "🙃", "😾"], + ["😹", "🚠", "🚌"], + ], +) +def test_array_creation_utf8(dtype, data): + arr = np.array(data, dtype=dtype) + assert str(arr) == "[" + " ".join(["'" + str(d) + "'" for d in data]) + "]" + assert arr.dtype == dtype + + +@pytest.mark.parametrize( + "data", + [ + [1, 2, 3], + [b"abc", b"def", b"ghi"], + [object, object, object], + ], +) +def test_scalars_string_conversion(data, dtype): + try: + str_vals = [str(d.decode('utf-8')) for d in data] + except AttributeError: + str_vals = [str(d) for d in data] + if dtype.coerce: + assert_array_equal( + np.array(data, dtype=dtype), + np.array(str_vals, dtype=dtype), + ) + else: + with pytest.raises(ValueError): + np.array(data, dtype=dtype) + + +@pytest.mark.parametrize( + ("strings"), + [ + ["this", "is", "an", "array"], + ["€", "", "😊"], + ["A¢☃€ 😊", " A☃€¢😊", "☃€😊 A¢", "😊☃A¢ €"], + ], +) +def test_self_casts(dtype, dtype2, strings): + if hasattr(dtype, "na_object"): + strings = strings + [dtype.na_object] + elif hasattr(dtype2, "na_object"): + strings = strings + [""] + arr = np.array(strings, dtype=dtype) + newarr = arr.astype(dtype2) + + if hasattr(dtype, "na_object") and not hasattr(dtype2, "na_object"): + assert newarr[-1] == str(dtype.na_object) + with pytest.raises(TypeError): + arr.astype(dtype2, casting="safe") + elif hasattr(dtype, "na_object") and hasattr(dtype2, "na_object"): + assert newarr[-1] is dtype2.na_object + arr.astype(dtype2, casting="safe") + elif hasattr(dtype2, "na_object"): + assert newarr[-1] == "" + arr.astype(dtype2, casting="safe") + else: + arr.astype(dtype2, casting="safe") + + if hasattr(dtype, "na_object") and hasattr(dtype2, "na_object"): + na1 = dtype.na_object + na2 = dtype2.na_object + if (na1 is not na2 and + # check for pd_NA first because bool(pd_NA) is an error + ((na1 is pd_NA or na2 is pd_NA) or + # the second check is a NaN check, spelled this way + # to avoid errors from math.isnan and np.isnan + (na1 != na2 and not (na1 != na1 and na2 != na2)))): + with pytest.raises(TypeError): + arr[:-1] == newarr[:-1] + return + assert_array_equal(arr[:-1], newarr[:-1]) + + +@pytest.mark.parametrize( + ("strings"), + [ + ["this", "is", "an", "array"], + ["€", "", "😊"], + ["A¢☃€ 😊", " A☃€¢😊", "☃€😊 A¢", "😊☃A¢ €"], + ], +) +class TestStringLikeCasts: + def test_unicode_casts(self, dtype, strings): + arr = np.array(strings, dtype=np.str_).astype(dtype) + expected = np.array(strings, dtype=dtype) + assert_array_equal(arr, expected) + + arr_as_U8 = expected.astype("U8") + assert_array_equal(arr_as_U8, np.array(strings, dtype="U8")) + assert_array_equal(arr_as_U8.astype(dtype), arr) + arr_as_U3 = expected.astype("U3") + assert_array_equal(arr_as_U3, np.array(strings, dtype="U3")) + assert_array_equal( + arr_as_U3.astype(dtype), + np.array([s[:3] for s in strings], dtype=dtype), + ) + + def test_void_casts(self, dtype, strings): + sarr = np.array(strings, dtype=dtype) + utf8_bytes = [s.encode("utf-8") for s in strings] + void_dtype = f"V{max(len(s) for s in utf8_bytes)}" + varr = np.array(utf8_bytes, dtype=void_dtype) + assert_array_equal(varr, sarr.astype(void_dtype)) + assert_array_equal(varr.astype(dtype), sarr) + + def test_bytes_casts(self, dtype, strings): + sarr = np.array(strings, dtype=dtype) + try: + utf8_bytes = [s.encode("ascii") for s in strings] + bytes_dtype = f"S{max(len(s) for s in utf8_bytes)}" + barr = np.array(utf8_bytes, dtype=bytes_dtype) + assert_array_equal(barr, sarr.astype(bytes_dtype)) + assert_array_equal(barr.astype(dtype), sarr) + if dtype.coerce: + barr = np.array(utf8_bytes, dtype=dtype) + assert_array_equal(barr, sarr) + barr = np.array(utf8_bytes, dtype="O") + assert_array_equal(barr.astype(dtype), sarr) + else: + with pytest.raises(ValueError): + np.array(utf8_bytes, dtype=dtype) + except UnicodeEncodeError: + with pytest.raises(UnicodeEncodeError): + sarr.astype("S20") + + +def test_additional_unicode_cast(dtype): + string_list = random_unicode_string_list() + arr = np.array(string_list, dtype=dtype) + # test that this short-circuits correctly + assert_array_equal(arr, arr.astype(arr.dtype)) + # tests the casts via the comparison promoter + assert_array_equal(arr, arr.astype(string_list.dtype)) + + +def test_insert_scalar(dtype, string_list): + """Test that inserting a scalar works.""" + arr = np.array(string_list, dtype=dtype) + scalar_instance = "what" + arr[1] = scalar_instance + assert_array_equal( + arr, + np.array(string_list[:1] + ["what"] + string_list[2:], dtype=dtype), + ) + + +comparison_operators = [ + np.equal, + np.not_equal, + np.greater, + np.greater_equal, + np.less, + np.less_equal, +] + + +@pytest.mark.parametrize("op", comparison_operators) +@pytest.mark.parametrize("o_dtype", [np.str_, object, StringDType()]) +def test_comparisons(string_list, dtype, op, o_dtype): + sarr = np.array(string_list, dtype=dtype) + oarr = np.array(string_list, dtype=o_dtype) + + # test that comparison operators work + res = op(sarr, sarr) + ores = op(oarr, oarr) + # test that promotion works as well + orres = op(sarr, oarr) + olres = op(oarr, sarr) + + assert_array_equal(res, ores) + assert_array_equal(res, orres) + assert_array_equal(res, olres) + + # test we get the correct answer for unequal length strings + sarr2 = np.array([s + "2" for s in string_list], dtype=dtype) + oarr2 = np.array([s + "2" for s in string_list], dtype=o_dtype) + + res = op(sarr, sarr2) + ores = op(oarr, oarr2) + olres = op(oarr, sarr2) + orres = op(sarr, oarr2) + + assert_array_equal(res, ores) + assert_array_equal(res, olres) + assert_array_equal(res, orres) + + res = op(sarr2, sarr) + ores = op(oarr2, oarr) + olres = op(oarr2, sarr) + orres = op(sarr2, oarr) + + assert_array_equal(res, ores) + assert_array_equal(res, olres) + assert_array_equal(res, orres) + + +def test_isnan(dtype, string_list): + if not hasattr(dtype, "na_object"): + pytest.skip("no na support") + sarr = np.array(string_list + [dtype.na_object], dtype=dtype) + is_nan = isinstance(dtype.na_object, float) and np.isnan(dtype.na_object) + bool_errors = 0 + try: + bool(dtype.na_object) + except TypeError: + bool_errors = 1 + if is_nan or bool_errors: + # isnan is only true when na_object is a NaN + assert_array_equal( + np.isnan(sarr), + np.array([0] * len(string_list) + [1], dtype=np.bool), + ) + else: + assert not np.any(np.isnan(sarr)) + + +def test_pickle(dtype, string_list): + arr = np.array(string_list, dtype=dtype) + + with tempfile.NamedTemporaryFile("wb", delete=False) as f: + pickle.dump([arr, dtype], f) + + with open(f.name, "rb") as f: + res = pickle.load(f) + + assert_array_equal(res[0], arr) + assert res[1] == dtype + + os.remove(f.name) + + +def test_stdlib_copy(dtype, string_list): + arr = np.array(string_list, dtype=dtype) + + assert_array_equal(copy.copy(arr), arr) + assert_array_equal(copy.deepcopy(arr), arr) + + +@pytest.mark.parametrize( + "strings", + [ + ["left", "right", "leftovers", "righty", "up", "down"], + [ + "left" * 10, + "right" * 10, + "leftovers" * 10, + "righty" * 10, + "up" * 10, + ], + ["🤣🤣", "🤣", "📵", "😰"], + ["🚜", "🙃", "😾"], + ["😹", "🚠", "🚌"], + ["A¢☃€ 😊", " A☃€¢😊", "☃€😊 A¢", "😊☃A¢ €"], + ], +) +def test_sort(dtype, strings): + """Test that sorting matches python's internal sorting.""" + + def test_sort(strings, arr_sorted): + arr = np.array(strings, dtype=dtype) + na_object = getattr(arr.dtype, "na_object", "") + if na_object is None and None in strings: + with pytest.raises( + ValueError, + match="Cannot compare null that is not a nan-like value", + ): + np.argsort(arr) + argsorted = None + elif na_object is pd_NA or na_object != '': + argsorted = None + else: + argsorted = np.argsort(arr) + np.random.default_rng().shuffle(arr) + if na_object is None and None in strings: + with pytest.raises( + ValueError, + match="Cannot compare null that is not a nan-like value", + ): + arr.sort() + else: + arr.sort() + assert np.array_equal(arr, arr_sorted, equal_nan=True) + if argsorted is not None: + assert np.array_equal(argsorted, np.argsort(strings)) + + # make a copy so we don't mutate the lists in the fixture + strings = strings.copy() + arr_sorted = np.array(sorted(strings), dtype=dtype) + test_sort(strings, arr_sorted) + + if not hasattr(dtype, "na_object"): + return + + # make sure NAs get sorted to the end of the array and string NAs get + # sorted like normal strings + strings.insert(0, dtype.na_object) + strings.insert(2, dtype.na_object) + # can't use append because doing that with NA converts + # the result to object dtype + if not isinstance(dtype.na_object, str): + arr_sorted = np.array( + arr_sorted.tolist() + [dtype.na_object, dtype.na_object], + dtype=dtype, + ) + else: + arr_sorted = np.array(sorted(strings), dtype=dtype) + + test_sort(strings, arr_sorted) + + +@pytest.mark.parametrize( + "strings", + [ + ["A¢☃€ 😊", " A☃€¢😊", "☃€😊 A¢", "😊☃A¢ €"], + ["A¢☃€ 😊", "", " ", " "], + ["", "a", "😸", "ááðfáíóåéë"], + ], +) +def test_nonzero(strings, na_object): + dtype = get_dtype(na_object) + arr = np.array(strings, dtype=dtype) + is_nonzero = np.array( + [i for i, item in enumerate(strings) if len(item) != 0]) + assert_array_equal(arr.nonzero()[0], is_nonzero) + + if na_object is not pd_NA and na_object == 'unset': + return + + strings_with_na = np.array(strings + [na_object], dtype=dtype) + is_nan = np.isnan(np.array([dtype.na_object], dtype=dtype))[0] + + if is_nan: + assert strings_with_na.nonzero()[0][-1] == 4 + else: + assert strings_with_na.nonzero()[0][-1] == 3 + + # check that the casting to bool and nonzero give consistent results + assert_array_equal(strings_with_na[strings_with_na.nonzero()], + strings_with_na[strings_with_na.astype(bool)]) + + +def test_where(string_list, na_object): + dtype = get_dtype(na_object) + a = np.array(string_list, dtype=dtype) + b = a[::-1] + res = np.where([True, False, True, False, True, False], a, b) + assert_array_equal(res, [a[0], b[1], a[2], b[3], a[4], b[5]]) + + +def test_fancy_indexing(string_list): + sarr = np.array(string_list, dtype="T") + assert_array_equal(sarr, sarr[np.arange(sarr.shape[0])]) + + inds = [ + [True, True], + [0, 1], + ..., + np.array([0, 1], dtype='uint8'), + ] + + lops = [ + ['a' * 25, 'b' * 25], + ['', ''], + ['hello', 'world'], + ['hello', 'world' * 25], + ] + + # see gh-27003 and gh-27053 + for ind in inds: + for lop in lops: + a = np.array(lop, dtype="T") + assert_array_equal(a[ind], a) + rop = ['d' * 25, 'e' * 25] + for b in [rop, np.array(rop, dtype="T")]: + a[ind] = b + assert_array_equal(a, b) + assert a[0] == 'd' * 25 + + # see gh-29279 + data = [ + ["AAAAAAAAAAAAAAAAA"], + ["BBBBBBBBBBBBBBBBBBBBBBBBBBBBB"], + ["CCCCCCCCCCCCCCCCC"], + ["DDDDDDDDDDDDDDDDD"], + ] + sarr = np.array(data, dtype=np.dtypes.StringDType()) + uarr = np.array(data, dtype="U30") + for ind in [[0], [1], [2], [3], [[0, 0]], [[1, 1, 3]], [[1, 1]]]: + assert_array_equal(sarr[ind], uarr[ind]) + + +def test_flatiter_indexing(): + # see gh-29659 + arr = np.array(['hello', 'world'], dtype='T') + arr.flat[:] = 9223372036854775 + assert_array_equal(arr, np.array([9223372036854775] * 2, dtype='T')) + + +def test_creation_functions(): + assert_array_equal(np.zeros(3, dtype="T"), ["", "", ""]) + assert_array_equal(np.empty(3, dtype="T"), ["", "", ""]) + + assert np.zeros(3, dtype="T")[0] == "" + assert np.empty(3, dtype="T")[0] == "" + + +def test_concatenate(string_list): + sarr = np.array(string_list, dtype="T") + sarr_cat = np.array(string_list + string_list, dtype="T") + + assert_array_equal(np.concatenate([sarr], axis=0), sarr) + + +def test_resize_method(string_list): + sarr = np.array(string_list, dtype="T") + if IS_PYPY: + sarr.resize(len(string_list) + 3, refcheck=False) + else: + sarr.resize(len(string_list) + 3) + assert_array_equal(sarr, np.array(string_list + [''] * 3, dtype="T")) + + +def test_create_with_copy_none(string_list): + arr = np.array(string_list, dtype=StringDType()) + # create another stringdtype array with an arena that has a different + # in-memory layout than the first array + arr_rev = np.array(string_list[::-1], dtype=StringDType()) + + # this should create a copy and the resulting array + # shouldn't share an allocator or arena with arr_rev, despite + # explicitly passing arr_rev.dtype + arr_copy = np.array(arr, copy=None, dtype=arr_rev.dtype) + np.testing.assert_array_equal(arr, arr_copy) + assert arr_copy.base is None + + with pytest.raises(ValueError, match="Unable to avoid copy"): + np.array(arr, copy=False, dtype=arr_rev.dtype) + + # because we're using arr's dtype instance, the view is safe + arr_view = np.array(arr, copy=None, dtype=arr.dtype) + np.testing.assert_array_equal(arr, arr) + np.testing.assert_array_equal(arr_view[::-1], arr_rev) + assert arr_view is arr + + +def test_astype_copy_false(): + orig_dt = StringDType() + arr = np.array(["hello", "world"], dtype=StringDType()) + assert not arr.astype(StringDType(coerce=False), copy=False).dtype.coerce + + assert arr.astype(orig_dt, copy=False).dtype is orig_dt + +@pytest.mark.parametrize( + "strings", + [ + ["left", "right", "leftovers", "righty", "up", "down"], + ["🤣🤣", "🤣", "📵", "😰"], + ["🚜", "🙃", "😾"], + ["😹", "🚠", "🚌"], + ["A¢☃€ 😊", " A☃€¢😊", "☃€😊 A¢", "😊☃A¢ €"], + ], +) +def test_argmax(strings): + """Test that argmax/argmin matches what python calculates.""" + arr = np.array(strings, dtype="T") + assert np.argmax(arr) == strings.index(max(strings)) + assert np.argmin(arr) == strings.index(min(strings)) + + +@pytest.mark.parametrize( + "arrfunc,expected", + [ + [np.sort, None], + [np.nonzero, (np.array([], dtype=np.int_),)], + [np.argmax, 0], + [np.argmin, 0], + ], +) +def test_arrfuncs_zeros(arrfunc, expected): + arr = np.zeros(10, dtype="T") + result = arrfunc(arr) + if expected is None: + expected = arr + assert_array_equal(result, expected, strict=True) + + +@pytest.mark.parametrize( + ("strings", "cast_answer", "any_answer", "all_answer"), + [ + [["hello", "world"], [True, True], True, True], + [["", ""], [False, False], False, False], + [["hello", ""], [True, False], True, False], + [["", "world"], [False, True], True, False], + ], +) +def test_cast_to_bool(strings, cast_answer, any_answer, all_answer): + sarr = np.array(strings, dtype="T") + assert_array_equal(sarr.astype("bool"), cast_answer) + + assert np.any(sarr) == any_answer + assert np.all(sarr) == all_answer + + +@pytest.mark.parametrize( + ("strings", "cast_answer"), + [ + [[True, True], ["True", "True"]], + [[False, False], ["False", "False"]], + [[True, False], ["True", "False"]], + [[False, True], ["False", "True"]], + ], +) +def test_cast_from_bool(strings, cast_answer): + barr = np.array(strings, dtype=bool) + assert_array_equal(barr.astype("T"), np.array(cast_answer, dtype="T")) + + +@pytest.mark.parametrize("bitsize", [8, 16, 32, 64]) +@pytest.mark.parametrize("signed", [True, False]) +def test_sized_integer_casts(bitsize, signed): + idtype = f"int{bitsize}" + if signed: + inp = [-(2**p - 1) for p in reversed(range(bitsize - 1))] + inp += [2**p - 1 for p in range(1, bitsize - 1)] + else: + idtype = "u" + idtype + inp = [2**p - 1 for p in range(bitsize)] + ainp = np.array(inp, dtype=idtype) + assert_array_equal(ainp, ainp.astype("T").astype(idtype)) + + # safe casting works + ainp.astype("T", casting="safe") + + with pytest.raises(TypeError): + ainp.astype("T").astype(idtype, casting="safe") + + oob = [str(2**bitsize), str(-(2**bitsize))] + with pytest.raises(OverflowError): + np.array(oob, dtype="T").astype(idtype) + + with pytest.raises(ValueError): + np.array(["1", np.nan, "3"], + dtype=StringDType(na_object=np.nan)).astype(idtype) + + +@pytest.mark.parametrize("typename", ["byte", "short", "int", "longlong"]) +@pytest.mark.parametrize("signed", ["", "u"]) +def test_unsized_integer_casts(typename, signed): + idtype = f"{signed}{typename}" + + inp = [1, 2, 3, 4] + ainp = np.array(inp, dtype=idtype) + assert_array_equal(ainp, ainp.astype("T").astype(idtype)) + + +@pytest.mark.parametrize( + "typename", + [ + pytest.param( + "longdouble", + marks=pytest.mark.xfail( + np.dtypes.LongDoubleDType() != np.dtypes.Float64DType(), + reason="numpy lacks an ld2a implementation", + strict=True, + ), + ), + "float64", + "float32", + "float16", + ], +) +def test_float_casts(typename): + inp = [1.1, 2.8, -3.2, 2.7e4] + ainp = np.array(inp, dtype=typename) + assert_array_equal(ainp, ainp.astype("T").astype(typename)) + + inp = [0.1] + sres = np.array(inp, dtype=typename).astype("T") + res = sres.astype(typename) + assert_array_equal(np.array(inp, dtype=typename), res) + assert sres[0] == "0.1" + + if typename == "longdouble": + # let's not worry about platform-dependent rounding of longdouble + return + + fi = np.finfo(typename) + + inp = [1e-324, fi.smallest_subnormal, -1e-324, -fi.smallest_subnormal] + eres = [0, fi.smallest_subnormal, -0, -fi.smallest_subnormal] + res = np.array(inp, dtype=typename).astype("T").astype(typename) + assert_array_equal(eres, res) + + inp = [2e308, fi.max, -2e308, fi.min] + eres = [np.inf, fi.max, -np.inf, fi.min] + res = np.array(inp, dtype=typename).astype("T").astype(typename) + assert_array_equal(eres, res) + + +def test_float_nan_cast_na_object(): + # gh-28157 + dt = np.dtypes.StringDType(na_object=np.nan) + arr1 = np.full((1,), fill_value=np.nan, dtype=dt) + arr2 = np.full_like(arr1, fill_value=np.nan) + + assert arr1.item() is np.nan + assert arr2.item() is np.nan + + inp = [1.2, 2.3, np.nan] + arr = np.array(inp).astype(dt) + assert arr[2] is np.nan + assert arr[0] == '1.2' + + +@pytest.mark.parametrize( + "typename", + [ + "csingle", + "cdouble", + pytest.param( + "clongdouble", + marks=pytest.mark.xfail( + np.dtypes.CLongDoubleDType() != np.dtypes.Complex128DType(), + reason="numpy lacks an ld2a implementation", + strict=True, + ), + ), + ], +) +def test_cfloat_casts(typename): + inp = [1.1 + 1.1j, 2.8 + 2.8j, -3.2 - 3.2j, 2.7e4 + 2.7e4j] + ainp = np.array(inp, dtype=typename) + assert_array_equal(ainp, ainp.astype("T").astype(typename)) + + inp = [0.1 + 0.1j] + sres = np.array(inp, dtype=typename).astype("T") + res = sres.astype(typename) + assert_array_equal(np.array(inp, dtype=typename), res) + assert sres[0] == "(0.1+0.1j)" + + +def test_take(string_list): + sarr = np.array(string_list, dtype="T") + res = sarr.take(np.arange(len(string_list))) + assert_array_equal(sarr, res) + + # make sure it also works for out + out = np.empty(len(string_list), dtype="T") + out[0] = "hello" + res = sarr.take(np.arange(len(string_list)), out=out) + assert res is out + assert_array_equal(sarr, res) + + +@pytest.mark.parametrize("use_out", [True, False]) +@pytest.mark.parametrize( + "ufunc_name,func", + [ + ("min", min), + ("max", max), + ], +) +def test_ufuncs_minmax(string_list, ufunc_name, func, use_out): + """Test that the min/max ufuncs match Python builtin min/max behavior.""" + arr = np.array(string_list, dtype="T") + uarr = np.array(string_list, dtype=str) + res = np.array(func(string_list), dtype="T") + assert_array_equal(getattr(arr, ufunc_name)(), res) + + ufunc = getattr(np, ufunc_name + "imum") + + if use_out: + res = ufunc(arr, arr, out=arr) + else: + res = ufunc(arr, arr) + + assert_array_equal(uarr, res) + assert_array_equal(getattr(arr, ufunc_name)(), func(string_list)) + + +def test_max_regression(): + arr = np.array(['y', 'y', 'z'], dtype="T") + assert arr.max() == 'z' + + +@pytest.mark.parametrize("use_out", [True, False]) +@pytest.mark.parametrize( + "other_strings", + [ + ["abc", "def" * 500, "ghi" * 16, "🤣" * 100, "📵", "😰"], + ["🚜", "🙃", "😾", "😹", "🚠", "🚌"], + ["🥦", "¨", "⨯", "∰ ", "⨌ ", "⎶ "], + ], +) +def test_ufunc_add(dtype, string_list, other_strings, use_out): + arr1 = np.array(string_list, dtype=dtype) + arr2 = np.array(other_strings, dtype=dtype) + result = np.array([a + b for a, b in zip(arr1, arr2)], dtype=dtype) + + if use_out: + res = np.add(arr1, arr2, out=arr1) + else: + res = np.add(arr1, arr2) + + assert_array_equal(res, result) + + if not hasattr(dtype, "na_object"): + return + + is_nan = isinstance(dtype.na_object, float) and np.isnan(dtype.na_object) + is_str = isinstance(dtype.na_object, str) + bool_errors = 0 + try: + bool(dtype.na_object) + except TypeError: + bool_errors = 1 + + arr1 = np.array([dtype.na_object] + string_list, dtype=dtype) + arr2 = np.array(other_strings + [dtype.na_object], dtype=dtype) + + if is_nan or bool_errors or is_str: + res = np.add(arr1, arr2) + assert_array_equal(res[1:-1], arr1[1:-1] + arr2[1:-1]) + if not is_str: + assert res[0] is dtype.na_object and res[-1] is dtype.na_object + else: + assert res[0] == dtype.na_object + arr2[0] + assert res[-1] == arr1[-1] + dtype.na_object + else: + with pytest.raises(ValueError): + np.add(arr1, arr2) + + +def test_ufunc_add_reduce(dtype): + values = ["a", "this is a long string", "c"] + arr = np.array(values, dtype=dtype) + out = np.empty((), dtype=dtype) + + expected = np.array("".join(values), dtype=dtype) + assert_array_equal(np.add.reduce(arr), expected) + + np.add.reduce(arr, out=out) + assert_array_equal(out, expected) + + +def test_add_promoter(string_list): + arr = np.array(string_list, dtype=StringDType()) + lresult = np.array(["hello" + s for s in string_list], dtype=StringDType()) + rresult = np.array([s + "hello" for s in string_list], dtype=StringDType()) + + for op in ["hello", np.str_("hello"), np.array(["hello"])]: + assert_array_equal(op + arr, lresult) + assert_array_equal(arr + op, rresult) + + # The promoter should be able to handle things if users pass `dtype=` + res = np.add("hello", string_list, dtype=StringDType) + assert res.dtype == StringDType() + + # The promoter should not kick in if users override the input, + # which means arr is cast, this fails because of the unknown length. + with pytest.raises(TypeError, match="cannot cast dtype"): + np.add(arr, "add", signature=("U", "U", None), casting="unsafe") + + # But it must simply reject the following: + with pytest.raises(TypeError, match=".*did not contain a loop"): + np.add(arr, "add", signature=(None, "U", None)) + + with pytest.raises(TypeError, match=".*did not contain a loop"): + np.add("a", "b", signature=("U", "U", StringDType)) + + +def test_add_no_legacy_promote_with_signature(): + # Possibly misplaced, but useful to test with string DType. We check that + # if there is clearly no loop found, a stray `dtype=` doesn't break things + # Regression test for the bad error in gh-26735 + # (If legacy promotion is gone, this can be deleted...) + with pytest.raises(TypeError, match=".*did not contain a loop"): + np.add("3", 6, dtype=StringDType) + + +def test_add_promoter_reduce(): + # Exact TypeError could change, but ensure StringDtype doesn't match + with pytest.raises(TypeError, match="the resolved dtypes are not"): + np.add.reduce(np.array(["a", "b"], dtype="U")) + + # On the other hand, using `dtype=T` in the *ufunc* should work. + np.add.reduce(np.array(["a", "b"], dtype="U"), dtype=np.dtypes.StringDType) + + +def test_multiply_reduce(): + # At the time of writing (NumPy 2.0) this is very limited (and rather + # ridiculous anyway). But it works and actually makes some sense... + # (NumPy does not allow non-scalar initial values) + repeats = np.array([2, 3, 4]) + val = "school-🚌" + res = np.multiply.reduce(repeats, initial=val, dtype=np.dtypes.StringDType) + assert res == val * np.prod(repeats) + + +def test_multiply_two_string_raises(): + arr = np.array(["hello", "world"], dtype="T") + with pytest.raises(np._core._exceptions._UFuncNoLoopError): + np.multiply(arr, arr) + + +@pytest.mark.parametrize("use_out", [True, False]) +@pytest.mark.parametrize("other", [2, [2, 1, 3, 4, 1, 3]]) +@pytest.mark.parametrize( + "other_dtype", + [ + None, + "int8", + "int16", + "int32", + "int64", + "uint8", + "uint16", + "uint32", + "uint64", + "short", + "int", + "intp", + "long", + "longlong", + "ushort", + "uint", + "uintp", + "ulong", + "ulonglong", + ], +) +def test_ufunc_multiply(dtype, string_list, other, other_dtype, use_out): + """Test the two-argument ufuncs match python builtin behavior.""" + arr = np.array(string_list, dtype=dtype) + if other_dtype is not None: + other_dtype = np.dtype(other_dtype) + try: + len(other) + result = [s * o for s, o in zip(string_list, other)] + other = np.array(other) + if other_dtype is not None: + other = other.astype(other_dtype) + except TypeError: + if other_dtype is not None: + other = other_dtype.type(other) + result = [s * other for s in string_list] + + if use_out: + arr_cache = arr.copy() + lres = np.multiply(arr, other, out=arr) + assert_array_equal(lres, result) + arr[:] = arr_cache + assert lres is arr + arr *= other + assert_array_equal(arr, result) + arr[:] = arr_cache + rres = np.multiply(other, arr, out=arr) + assert rres is arr + assert_array_equal(rres, result) + else: + lres = arr * other + assert_array_equal(lres, result) + rres = other * arr + assert_array_equal(rres, result) + + if not hasattr(dtype, "na_object"): + return + + is_nan = np.isnan(np.array([dtype.na_object], dtype=dtype))[0] + is_str = isinstance(dtype.na_object, str) + bool_errors = 0 + try: + bool(dtype.na_object) + except TypeError: + bool_errors = 1 + + arr = np.array(string_list + [dtype.na_object], dtype=dtype) + + try: + len(other) + other = np.append(other, 3) + if other_dtype is not None: + other = other.astype(other_dtype) + except TypeError: + pass + + if is_nan or bool_errors or is_str: + for res in [arr * other, other * arr]: + assert_array_equal(res[:-1], result) + if not is_str: + assert res[-1] is dtype.na_object + else: + try: + assert res[-1] == dtype.na_object * other[-1] + except (IndexError, TypeError): + assert res[-1] == dtype.na_object * other + else: + with pytest.raises(TypeError): + arr * other + with pytest.raises(TypeError): + other * arr + + +def test_findlike_promoters(): + r = "Wally" + l = "Where's Wally?" + s = np.int32(3) + e = np.int8(13) + for dtypes in [("T", "U"), ("U", "T")]: + for function, answer in [ + (np.strings.index, 8), + (np.strings.endswith, True), + ]: + assert answer == function( + np.array(l, dtype=dtypes[0]), np.array(r, dtype=dtypes[1]), s, e + ) + + +def test_strip_promoter(): + arg = ["Hello!!!!", "Hello??!!"] + strip_char = "!" + answer = ["Hello", "Hello??"] + for dtypes in [("T", "U"), ("U", "T")]: + result = np.strings.strip( + np.array(arg, dtype=dtypes[0]), + np.array(strip_char, dtype=dtypes[1]) + ) + assert_array_equal(result, answer) + assert result.dtype.char == "T" + + +def test_replace_promoter(): + arg = ["Hello, planet!", "planet, Hello!"] + old = "planet" + new = "world" + answer = ["Hello, world!", "world, Hello!"] + for dtypes in itertools.product("TU", repeat=3): + if dtypes == ("U", "U", "U"): + continue + answer_arr = np.strings.replace( + np.array(arg, dtype=dtypes[0]), + np.array(old, dtype=dtypes[1]), + np.array(new, dtype=dtypes[2]), + ) + assert_array_equal(answer_arr, answer) + assert answer_arr.dtype.char == "T" + + +def test_center_promoter(): + arg = ["Hello", "planet!"] + fillchar = "/" + for dtypes in [("T", "U"), ("U", "T")]: + answer = np.strings.center( + np.array(arg, dtype=dtypes[0]), 9, np.array(fillchar, dtype=dtypes[1]) + ) + assert_array_equal(answer, ["//Hello//", "/planet!/"]) + assert answer.dtype.char == "T" + + +DATETIME_INPUT = [ + np.datetime64("1923-04-14T12:43:12"), + np.datetime64("1994-06-21T14:43:15"), + np.datetime64("2001-10-15T04:10:32"), + np.datetime64("NaT"), + np.datetime64("1995-11-25T16:02:16"), + np.datetime64("2005-01-04T03:14:12"), + np.datetime64("2041-12-03T14:05:03"), +] + + +TIMEDELTA_INPUT = [ + np.timedelta64(12358, "s"), + np.timedelta64(23, "s"), + np.timedelta64(74, "s"), + np.timedelta64("NaT"), + np.timedelta64(23, "s"), + np.timedelta64(73, "s"), + np.timedelta64(7, "s"), +] + + +@pytest.mark.parametrize( + "input_data, input_dtype", + [ + (DATETIME_INPUT, "M8[s]"), + (TIMEDELTA_INPUT, "m8[s]") + ] +) +def test_datetime_timedelta_cast(dtype, input_data, input_dtype): + + a = np.array(input_data, dtype=input_dtype) + + has_na = hasattr(dtype, "na_object") + is_str = isinstance(getattr(dtype, "na_object", None), str) + + if not has_na or is_str: + a = np.delete(a, 3) + + sa = a.astype(dtype) + ra = sa.astype(a.dtype) + + if has_na and not is_str: + assert sa[3] is dtype.na_object + assert np.isnat(ra[3]) + + assert_array_equal(a, ra) + + if has_na and not is_str: + # don't worry about comparing how NaT is converted + sa = np.delete(sa, 3) + a = np.delete(a, 3) + + if input_dtype.startswith("M"): + assert_array_equal(sa, a.astype("U")) + else: + # The timedelta to unicode cast produces strings + # that aren't round-trippable and we don't want to + # reproduce that behavior in stringdtype + assert_array_equal(sa, a.astype("int64").astype("U")) + + +def test_nat_casts(): + s = 'nat' + all_nats = itertools.product(*zip(s.upper(), s.lower())) + all_nats = list(map(''.join, all_nats)) + NaT_dt = np.datetime64('NaT') + NaT_td = np.timedelta64('NaT') + for na_object in [np._NoValue, None, np.nan, 'nat', '']: + # numpy treats empty string and all case combinations of 'nat' as NaT + dtype = StringDType(na_object=na_object) + arr = np.array([''] + all_nats, dtype=dtype) + dt_array = arr.astype('M8[s]') + td_array = arr.astype('m8[s]') + assert_array_equal(dt_array, NaT_dt) + assert_array_equal(td_array, NaT_td) + + if na_object is np._NoValue: + output_object = 'NaT' + else: + output_object = na_object + + for arr in [dt_array, td_array]: + assert_array_equal( + arr.astype(dtype), + np.array([output_object] * arr.size, dtype=dtype)) + + +def test_nat_conversion(): + for nat in [np.datetime64("NaT", "s"), np.timedelta64("NaT", "s")]: + with pytest.raises(ValueError, match="string coercion is disabled"): + np.array(["a", nat], dtype=StringDType(coerce=False)) + + +def test_growing_strings(dtype): + # growing a string leads to a heap allocation, this tests to make sure + # we do that bookkeeping correctly for all possible starting cases + data = [ + "hello", # a short string + "abcdefghijklmnopqestuvwxyz", # a medium heap-allocated string + "hello" * 200, # a long heap-allocated string + ] + + arr = np.array(data, dtype=dtype) + uarr = np.array(data, dtype=str) + + for _ in range(5): + arr = arr + arr + uarr = uarr + uarr + + assert_array_equal(arr, uarr) + + +def test_assign_medium_strings(): + # see gh-29261 + N = 9 + src = np.array( + ( + ['0' * 256] * 3 + ['0' * 255] + ['0' * 256] + ['0' * 255] + + ['0' * 256] * 2 + ['0' * 255] + ), dtype='T') + dst = np.array( + ( + ['0' * 255] + ['0' * 256] * 2 + ['0' * 255] + ['0' * 256] + + ['0' * 255] + [''] * 5 + ), dtype='T') + + dst[1:N + 1] = src + assert_array_equal(dst[1:N + 1], src) + + +UFUNC_TEST_DATA = [ + "hello" * 10, + "Ae¢☃€ 😊" * 20, + "entry\nwith\nnewlines", + "entry\twith\ttabs", +] + + +@pytest.fixture +def string_array(dtype): + return np.array(UFUNC_TEST_DATA, dtype=dtype) + + +@pytest.fixture +def unicode_array(): + return np.array(UFUNC_TEST_DATA, dtype=np.str_) + + +NAN_PRESERVING_FUNCTIONS = [ + "capitalize", + "expandtabs", + "lower", + "lstrip", + "rstrip", + "splitlines", + "strip", + "swapcase", + "title", + "upper", +] + +BOOL_OUTPUT_FUNCTIONS = [ + "isalnum", + "isalpha", + "isdigit", + "islower", + "isspace", + "istitle", + "isupper", + "isnumeric", + "isdecimal", +] + +UNARY_FUNCTIONS = [ + "str_len", + "capitalize", + "expandtabs", + "isalnum", + "isalpha", + "isdigit", + "islower", + "isspace", + "istitle", + "isupper", + "lower", + "lstrip", + "rstrip", + "splitlines", + "strip", + "swapcase", + "title", + "upper", + "isnumeric", + "isdecimal", + "isalnum", + "islower", + "istitle", + "isupper", +] + +UNIMPLEMENTED_VEC_STRING_FUNCTIONS = [ + "capitalize", + "expandtabs", + "lower", + "splitlines", + "swapcase", + "title", + "upper", +] + +ONLY_IN_NP_CHAR = [ + "join", + "split", + "rsplit", + "splitlines" +] + + +@pytest.mark.parametrize("function_name", UNARY_FUNCTIONS) +def test_unary(string_array, unicode_array, function_name): + if function_name in ONLY_IN_NP_CHAR: + func = getattr(np.char, function_name) + else: + func = getattr(np.strings, function_name) + dtype = string_array.dtype + sres = func(string_array) + ures = func(unicode_array) + if sres.dtype == StringDType(): + ures = ures.astype(StringDType()) + assert_array_equal(sres, ures) + + if not hasattr(dtype, "na_object"): + return + + is_nan = np.isnan(np.array([dtype.na_object], dtype=dtype))[0] + is_str = isinstance(dtype.na_object, str) + na_arr = np.insert(string_array, 0, dtype.na_object) + + if function_name in UNIMPLEMENTED_VEC_STRING_FUNCTIONS: + if not is_str: + # to avoid these errors we'd need to add NA support to _vec_string + with pytest.raises((ValueError, TypeError)): + func(na_arr) + elif function_name == "splitlines": + assert func(na_arr)[0] == func(dtype.na_object)[()] + else: + assert func(na_arr)[0] == func(dtype.na_object) + return + if function_name == "str_len" and not is_str: + # str_len always errors for any non-string null, even NA ones because + # it has an integer result + with pytest.raises(ValueError): + func(na_arr) + return + if function_name in BOOL_OUTPUT_FUNCTIONS: + if is_nan: + assert func(na_arr)[0] is np.False_ + elif is_str: + assert func(na_arr)[0] == func(dtype.na_object) + else: + with pytest.raises(ValueError): + func(na_arr) + return + if not (is_nan or is_str): + with pytest.raises(ValueError): + func(na_arr) + return + res = func(na_arr) + if is_nan and function_name in NAN_PRESERVING_FUNCTIONS: + assert res[0] is dtype.na_object + elif is_str: + assert res[0] == func(dtype.na_object) + + +unicode_bug_fail = pytest.mark.xfail( + reason="unicode output width is buggy", strict=True +) + +# None means that the argument is a string array +BINARY_FUNCTIONS = [ + ("add", (None, None)), + ("multiply", (None, 2)), + ("mod", ("format: %s", None)), + ("center", (None, 25)), + ("count", (None, "A")), + ("encode", (None, "UTF-8")), + ("endswith", (None, "lo")), + ("find", (None, "A")), + ("index", (None, "e")), + ("join", ("-", None)), + ("ljust", (None, 12)), + ("lstrip", (None, "A")), + ("partition", (None, "A")), + ("replace", (None, "A", "B")), + ("rfind", (None, "A")), + ("rindex", (None, "e")), + ("rjust", (None, 12)), + ("rsplit", (None, "A")), + ("rstrip", (None, "A")), + ("rpartition", (None, "A")), + ("split", (None, "A")), + ("strip", (None, "A")), + ("startswith", (None, "A")), + ("zfill", (None, 12)), +] + +PASSES_THROUGH_NAN_NULLS = [ + "add", + "center", + "ljust", + "multiply", + "replace", + "rjust", + "strip", + "lstrip", + "rstrip", + "replace" + "zfill", +] + +NULLS_ARE_FALSEY = [ + "startswith", + "endswith", +] + +NULLS_ALWAYS_ERROR = [ + "count", + "find", + "rfind", +] + +SUPPORTS_NULLS = ( + PASSES_THROUGH_NAN_NULLS + + NULLS_ARE_FALSEY + + NULLS_ALWAYS_ERROR +) + + +def call_func(func, args, array, sanitize=True): + if args == (None, None): + return func(array, array) + if args[0] is None: + if sanitize: + san_args = tuple( + np.array(arg, dtype=array.dtype) if isinstance(arg, str) else + arg for arg in args[1:] + ) + else: + san_args = args[1:] + return func(array, *san_args) + if args[1] is None: + return func(args[0], array) + # shouldn't ever happen + assert 0 + + +@pytest.mark.parametrize("function_name, args", BINARY_FUNCTIONS) +def test_binary(string_array, unicode_array, function_name, args): + if function_name in ONLY_IN_NP_CHAR: + func = getattr(np.char, function_name) + else: + func = getattr(np.strings, function_name) + sres = call_func(func, args, string_array) + ures = call_func(func, args, unicode_array, sanitize=False) + if not isinstance(sres, tuple) and sres.dtype == StringDType(): + ures = ures.astype(StringDType()) + assert_array_equal(sres, ures) + + dtype = string_array.dtype + if function_name not in SUPPORTS_NULLS or not hasattr(dtype, "na_object"): + return + + na_arr = np.insert(string_array, 0, dtype.na_object) + is_nan = np.isnan(np.array([dtype.na_object], dtype=dtype))[0] + is_str = isinstance(dtype.na_object, str) + should_error = not (is_nan or is_str) + + if ( + (function_name in NULLS_ALWAYS_ERROR and not is_str) + or (function_name in PASSES_THROUGH_NAN_NULLS and should_error) + or (function_name in NULLS_ARE_FALSEY and should_error) + ): + with pytest.raises((ValueError, TypeError)): + call_func(func, args, na_arr) + return + + res = call_func(func, args, na_arr) + + if is_str: + assert res[0] == call_func(func, args, na_arr[:1]) + elif function_name in NULLS_ARE_FALSEY: + assert res[0] is np.False_ + elif function_name in PASSES_THROUGH_NAN_NULLS: + assert res[0] is dtype.na_object + else: + # shouldn't ever get here + assert 0 + + +@pytest.mark.parametrize("function, expected", [ + (np.strings.find, [[2, -1], [1, -1]]), + (np.strings.startswith, [[False, False], [True, False]])]) +@pytest.mark.parametrize("start, stop", [ + (1, 4), + (np.int8(1), np.int8(4)), + (np.array([1, 1], dtype='u2'), np.array([4, 4], dtype='u2'))]) +def test_non_default_start_stop(function, start, stop, expected): + a = np.array([["--🐍--", "--🦜--"], + ["-🐍---", "-🦜---"]], "T") + indx = function(a, "🐍", start, stop) + assert_array_equal(indx, expected) + + +@pytest.mark.parametrize("count", [2, np.int8(2), np.array([2, 2], 'u2')]) +def test_replace_non_default_repeat(count): + a = np.array(["🐍--", "🦜-🦜-"], "T") + result = np.strings.replace(a, "🦜-", "🦜†", count) + assert_array_equal(result, np.array(["🐍--", "🦜†🦜†"], "T")) + + +def test_strip_ljust_rjust_consistency(string_array, unicode_array): + rjs = np.char.rjust(string_array, 1000) + rju = np.char.rjust(unicode_array, 1000) + + ljs = np.char.ljust(string_array, 1000) + lju = np.char.ljust(unicode_array, 1000) + + assert_array_equal( + np.char.lstrip(rjs), + np.char.lstrip(rju).astype(StringDType()), + ) + + assert_array_equal( + np.char.rstrip(ljs), + np.char.rstrip(lju).astype(StringDType()), + ) + + assert_array_equal( + np.char.strip(ljs), + np.char.strip(lju).astype(StringDType()), + ) + + assert_array_equal( + np.char.strip(rjs), + np.char.strip(rju).astype(StringDType()), + ) + + +def test_unset_na_coercion(): + # a dtype instance with an unset na object is compatible + # with a dtype that has one set + + # this test uses the "add" and "equal" ufunc but all ufuncs that + # accept more than one string argument and produce a string should + # behave this way + # TODO: generalize to more ufuncs + inp = ["hello", "world"] + arr = np.array(inp, dtype=StringDType(na_object=None)) + for op_dtype in [None, StringDType(), StringDType(coerce=False), + StringDType(na_object=None)]: + if op_dtype is None: + op = "2" + else: + op = np.array("2", dtype=op_dtype) + res = arr + op + assert_array_equal(res, ["hello2", "world2"]) + + # dtype instances with distinct explicitly set NA objects are incompatible + for op_dtype in [StringDType(na_object=pd_NA), StringDType(na_object="")]: + op = np.array("2", dtype=op_dtype) + with pytest.raises(TypeError): + arr + op + + # comparisons only consider the na_object + for op_dtype in [None, StringDType(), StringDType(coerce=True), + StringDType(na_object=None)]: + if op_dtype is None: + op = inp + else: + op = np.array(inp, dtype=op_dtype) + assert_array_equal(arr, op) + + for op_dtype in [StringDType(na_object=pd_NA), + StringDType(na_object=np.nan)]: + op = np.array(inp, dtype=op_dtype) + with pytest.raises(TypeError): + arr == op + + +def test_repeat(string_array): + res = string_array.repeat(1000) + # Create an empty array with expanded dimension, and fill it. Then, + # reshape it to the expected result. + expected = np.empty_like(string_array, shape=string_array.shape + (1000,)) + expected[...] = string_array[:, np.newaxis] + expected = expected.reshape(-1) + + assert_array_equal(res, expected, strict=True) + + +@pytest.mark.parametrize("tile", [1, 6, (2, 5)]) +def test_accumulation(string_array, tile): + """Accumulation is odd for StringDType but tests dtypes with references. + """ + # Fill with mostly empty strings to not create absurdly big strings + arr = np.zeros_like(string_array, shape=(100,)) + arr[:len(string_array)] = string_array + arr[-len(string_array):] = string_array + + # Bloat size a bit (get above thresholds and test >1 ndim). + arr = np.tile(string_array, tile) + + res = np.add.accumulate(arr, axis=0) + res_obj = np.add.accumulate(arr.astype(object), axis=0) + assert_array_equal(res, res_obj.astype(arr.dtype), strict=True) + + if arr.ndim > 1: + res = np.add.accumulate(arr, axis=-1) + res_obj = np.add.accumulate(arr.astype(object), axis=-1) + + assert_array_equal(res, res_obj.astype(arr.dtype), strict=True) + + +class TestImplementation: + """Check that strings are stored in the arena when possible. + + This tests implementation details, so should be adjusted if + the implementation changes. + """ + + @classmethod + def setup_class(cls): + cls.MISSING = 0x80 + cls.INITIALIZED = 0x40 + cls.OUTSIDE_ARENA = 0x20 + cls.LONG = 0x10 + cls.dtype = StringDType(na_object=np.nan) + cls.sizeofstr = cls.dtype.itemsize + sp = cls.dtype.itemsize // 2 # pointer size = sizeof(size_t) + # Below, size is not strictly correct, since it really uses + # 7 (or 3) bytes, but good enough for the tests here. + cls.view_dtype = np.dtype([ + ('offset', f'u{sp}'), + ('size', f'u{sp // 2}'), + ('xsiz', f'V{sp // 2 - 1}'), + ('size_and_flags', 'u1'), + ] if sys.byteorder == 'little' else [ + ('size_and_flags', 'u1'), + ('xsiz', f'V{sp // 2 - 1}'), + ('size', f'u{sp // 2}'), + ('offset', f'u{sp}'), + ]) + cls.s_empty = "" + cls.s_short = "01234" + cls.s_medium = "abcdefghijklmnopqrstuvwxyz" + cls.s_long = "-=+" * 100 + cls.a = np.array( + [cls.s_empty, cls.s_short, cls.s_medium, cls.s_long], + cls.dtype) + + def get_view(self, a): + # Cannot view a StringDType as anything else directly, since + # it has references. So, we use a stride trick hack. + from numpy.lib._stride_tricks_impl import DummyArray + interface = dict(a.__array_interface__) + interface['descr'] = self.view_dtype.descr + interface['typestr'] = self.view_dtype.str + return np.asarray(DummyArray(interface, base=a)) + + def get_flags(self, a): + return self.get_view(a)['size_and_flags'] & 0xf0 + + def is_short(self, a): + return self.get_flags(a) == self.INITIALIZED | self.OUTSIDE_ARENA + + def is_on_heap(self, a): + return self.get_flags(a) == (self.INITIALIZED + | self.OUTSIDE_ARENA + | self.LONG) + + def is_missing(self, a): + return self.get_flags(a) & self.MISSING == self.MISSING + + def in_arena(self, a): + return (self.get_flags(a) & (self.INITIALIZED | self.OUTSIDE_ARENA) + == self.INITIALIZED) + + def test_setup(self): + is_short = self.is_short(self.a) + length = np.strings.str_len(self.a) + assert_array_equal(is_short, (length > 0) & (length <= 15)) + assert_array_equal(self.in_arena(self.a), [False, False, True, True]) + assert_array_equal(self.is_on_heap(self.a), False) + assert_array_equal(self.is_missing(self.a), False) + view = self.get_view(self.a) + sizes = np.where(is_short, view['size_and_flags'] & 0xf, + view['size']) + assert_array_equal(sizes, np.strings.str_len(self.a)) + assert_array_equal(view['xsiz'][2:], + np.void(b'\x00' * (self.sizeofstr // 4 - 1))) + # Check that the medium string uses only 1 byte for its length + # in the arena, while the long string takes 8 (or 4). + offsets = view['offset'] + assert offsets[2] == 1 + assert offsets[3] == 1 + len(self.s_medium) + self.sizeofstr // 2 + + def test_empty(self): + e = np.empty((3,), self.dtype) + assert_array_equal(self.get_flags(e), 0) + assert_array_equal(e, "") + + def test_zeros(self): + z = np.zeros((2,), self.dtype) + assert_array_equal(self.get_flags(z), 0) + assert_array_equal(z, "") + + def test_copy(self): + for c in [self.a.copy(), copy.copy(self.a), copy.deepcopy(self.a)]: + assert_array_equal(self.get_flags(c), self.get_flags(self.a)) + assert_array_equal(c, self.a) + offsets = self.get_view(c)['offset'] + assert offsets[2] == 1 + assert offsets[3] == 1 + len(self.s_medium) + self.sizeofstr // 2 + + def test_arena_use_with_setting(self): + c = np.zeros_like(self.a) + assert_array_equal(self.get_flags(c), 0) + c[:] = self.a + assert_array_equal(self.get_flags(c), self.get_flags(self.a)) + assert_array_equal(c, self.a) + + def test_arena_reuse_with_setting(self): + c = self.a.copy() + c[:] = self.a + assert_array_equal(self.get_flags(c), self.get_flags(self.a)) + assert_array_equal(c, self.a) + + def test_arena_reuse_after_missing(self): + c = self.a.copy() + c[:] = np.nan + assert np.all(self.is_missing(c)) + # Replacing with the original strings, the arena should be reused. + c[:] = self.a + assert_array_equal(self.get_flags(c), self.get_flags(self.a)) + assert_array_equal(c, self.a) + + def test_arena_reuse_after_empty(self): + c = self.a.copy() + c[:] = "" + assert_array_equal(c, "") + # Replacing with the original strings, the arena should be reused. + c[:] = self.a + assert_array_equal(self.get_flags(c), self.get_flags(self.a)) + assert_array_equal(c, self.a) + + def test_arena_reuse_for_shorter(self): + c = self.a.copy() + # A string slightly shorter than the shortest in the arena + # should be used for all strings in the arena. + c[:] = self.s_medium[:-1] + assert_array_equal(c, self.s_medium[:-1]) + # first empty string in original was never initialized, so + # filling it in now leaves it initialized inside the arena. + # second string started as a short string so it can never live + # in the arena. + in_arena = np.array([True, False, True, True]) + assert_array_equal(self.in_arena(c), in_arena) + # But when a short string is replaced, it will go on the heap. + assert_array_equal(self.is_short(c), False) + assert_array_equal(self.is_on_heap(c), ~in_arena) + # We can put the originals back, and they'll still fit, + # and short strings are back as short strings + c[:] = self.a + assert_array_equal(c, self.a) + assert_array_equal(self.in_arena(c), in_arena) + assert_array_equal(self.is_short(c), self.is_short(self.a)) + assert_array_equal(self.is_on_heap(c), False) + + def test_arena_reuse_if_possible(self): + c = self.a.copy() + # A slightly longer string will not fit in the arena for + # the medium string, but will fit for the longer one. + c[:] = self.s_medium + "±" + assert_array_equal(c, self.s_medium + "±") + in_arena_exp = np.strings.str_len(self.a) >= len(self.s_medium) + 1 + # first entry started uninitialized and empty, so filling it leaves + # it in the arena + in_arena_exp[0] = True + assert not np.all(in_arena_exp == self.in_arena(self.a)) + assert_array_equal(self.in_arena(c), in_arena_exp) + assert_array_equal(self.is_short(c), False) + assert_array_equal(self.is_on_heap(c), ~in_arena_exp) + # And once outside arena, it stays outside, since offset is lost. + # But short strings are used again. + c[:] = self.a + is_short_exp = self.is_short(self.a) + assert_array_equal(c, self.a) + assert_array_equal(self.in_arena(c), in_arena_exp) + assert_array_equal(self.is_short(c), is_short_exp) + assert_array_equal(self.is_on_heap(c), ~in_arena_exp & ~is_short_exp) + + def test_arena_no_reuse_after_short(self): + c = self.a.copy() + # If we replace a string with a short string, it cannot + # go into the arena after because the offset is lost. + c[:] = self.s_short + assert_array_equal(c, self.s_short) + assert_array_equal(self.in_arena(c), False) + c[:] = self.a + assert_array_equal(c, self.a) + assert_array_equal(self.in_arena(c), False) + assert_array_equal(self.is_on_heap(c), self.in_arena(self.a)) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_strings.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_strings.py new file mode 100644 index 0000000000000000000000000000000000000000..42e0d304c7517628c99f8977cdf83af02bcbb801 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_strings.py @@ -0,0 +1,1523 @@ +import operator +import sys + +import pytest + +import numpy as np +from numpy._core._exceptions import _UFuncNoLoopError +from numpy.testing import IS_PYPY, assert_array_equal, assert_raises +from numpy.testing._private.utils import requires_memory + +COMPARISONS = [ + (operator.eq, np.equal, "=="), + (operator.ne, np.not_equal, "!="), + (operator.lt, np.less, "<"), + (operator.le, np.less_equal, "<="), + (operator.gt, np.greater, ">"), + (operator.ge, np.greater_equal, ">="), +] + +MAX = np.iinfo(np.int64).max + +IS_PYPY_LT_7_3_16 = IS_PYPY and sys.implementation.version < (7, 3, 16) + +@pytest.mark.parametrize(["op", "ufunc", "sym"], COMPARISONS) +def test_mixed_string_comparison_ufuncs_fail(op, ufunc, sym): + arr_string = np.array(["a", "b"], dtype="S") + arr_unicode = np.array(["a", "c"], dtype="U") + + with pytest.raises(TypeError, match="did not contain a loop"): + ufunc(arr_string, arr_unicode) + + with pytest.raises(TypeError, match="did not contain a loop"): + ufunc(arr_unicode, arr_string) + +@pytest.mark.parametrize(["op", "ufunc", "sym"], COMPARISONS) +def test_mixed_string_comparisons_ufuncs_with_cast(op, ufunc, sym): + arr_string = np.array(["a", "b"], dtype="S") + arr_unicode = np.array(["a", "c"], dtype="U") + + # While there is no loop, manual casting is acceptable: + res1 = ufunc(arr_string, arr_unicode, signature="UU->?", casting="unsafe") + res2 = ufunc(arr_string, arr_unicode, signature="SS->?", casting="unsafe") + + expected = op(arr_string.astype("U"), arr_unicode) + assert_array_equal(res1, expected) + assert_array_equal(res2, expected) + + +@pytest.mark.parametrize(["op", "ufunc", "sym"], COMPARISONS) +@pytest.mark.parametrize("dtypes", [ + ("S2", "S2"), ("S2", "S10"), + ("U1"), (">U1", ">U1"), + ("U10")]) +@pytest.mark.parametrize("aligned", [True, False]) +def test_string_comparisons(op, ufunc, sym, dtypes, aligned): + # ensure native byte-order for the first view to stay within unicode range + native_dt = np.dtype(dtypes[0]).newbyteorder("=") + arr = np.arange(2**15).view(native_dt).astype(dtypes[0]) + if not aligned: + # Make `arr` unaligned: + new = np.zeros(arr.nbytes + 1, dtype=np.uint8)[1:].view(dtypes[0]) + new[...] = arr + arr = new + + arr2 = arr.astype(dtypes[1], copy=True) + np.random.shuffle(arr2) + arr[0] = arr2[0] # make sure one matches + + expected = [op(d1, d2) for d1, d2 in zip(arr.tolist(), arr2.tolist())] + assert_array_equal(op(arr, arr2), expected) + assert_array_equal(ufunc(arr, arr2), expected) + assert_array_equal( + np.char.compare_chararrays(arr, arr2, sym, False), expected + ) + + expected = [op(d2, d1) for d1, d2 in zip(arr.tolist(), arr2.tolist())] + assert_array_equal(op(arr2, arr), expected) + assert_array_equal(ufunc(arr2, arr), expected) + assert_array_equal( + np.char.compare_chararrays(arr2, arr, sym, False), expected + ) + + +@pytest.mark.parametrize(["op", "ufunc", "sym"], COMPARISONS) +@pytest.mark.parametrize("dtypes", [ + ("S2", "S2"), ("S2", "S10"), ("U10")]) +def test_string_comparisons_empty(op, ufunc, sym, dtypes): + arr = np.empty((1, 0, 1, 5), dtype=dtypes[0]) + arr2 = np.empty((100, 1, 0, 1), dtype=dtypes[1]) + + expected = np.empty(np.broadcast_shapes(arr.shape, arr2.shape), dtype=bool) + assert_array_equal(op(arr, arr2), expected) + assert_array_equal(ufunc(arr, arr2), expected) + assert_array_equal( + np.char.compare_chararrays(arr, arr2, sym, False), expected + ) + + +@pytest.mark.parametrize("str_dt", ["S", "U"]) +@pytest.mark.parametrize("float_dt", np.typecodes["AllFloat"]) +def test_float_to_string_cast(str_dt, float_dt): + float_dt = np.dtype(float_dt) + fi = np.finfo(float_dt) + arr = np.array([np.nan, np.inf, -np.inf, fi.max, fi.min], dtype=float_dt) + expected = ["nan", "inf", "-inf", str(fi.max), str(fi.min)] + if float_dt.kind == "c": + expected = [f"({r}+0j)" for r in expected] + + res = arr.astype(str_dt) + assert_array_equal(res, np.array(expected, dtype=str_dt)) + + +@pytest.mark.parametrize("str_dt", "US") +@pytest.mark.parametrize("size", [-1, np.iinfo(np.intc).max]) +def test_string_size_dtype_errors(str_dt, size): + if size > 0: + size = size // np.dtype(f"{str_dt}1").itemsize + 1 + + with pytest.raises(ValueError): + np.dtype((str_dt, size)) + with pytest.raises(TypeError): + np.dtype(f"{str_dt}{size}") + + +@pytest.mark.parametrize("str_dt", "US") +def test_string_size_dtype_large_repr(str_dt): + size = np.iinfo(np.intc).max // np.dtype(f"{str_dt}1").itemsize + size_str = str(size) + + dtype = np.dtype((str_dt, size)) + assert size_str in dtype.str + assert size_str in str(dtype) + assert size_str in repr(dtype) + + +@pytest.mark.slow +@requires_memory(2 * np.iinfo(np.intc).max) +@pytest.mark.parametrize("str_dt", "US") +@pytest.mark.thread_unsafe(reason="crashes with low memory") +def test_large_string_coercion_error(str_dt): + very_large = np.iinfo(np.intc).max // np.dtype(f"{str_dt}1").itemsize + try: + large_string = "A" * (very_large + 1) + except Exception: + # We may not be able to create this Python string on 32bit. + pytest.skip("python failed to create huge string") + + class MyStr: + def __str__(self): + return large_string + + try: + # TypeError from NumPy, or OverflowError from 32bit Python. + with pytest.raises((TypeError, OverflowError)): + np.array([large_string], dtype=str_dt) + + # Same as above, but input has to be converted to a string. + with pytest.raises((TypeError, OverflowError)): + np.array([MyStr()], dtype=str_dt) + except MemoryError: + # Catch memory errors, because `requires_memory` would do so. + raise AssertionError("Ops should raise before any large allocation.") + +@pytest.mark.slow +@requires_memory(2 * np.iinfo(np.intc).max) +@pytest.mark.parametrize("str_dt", "US") +@pytest.mark.thread_unsafe(reason="crashes with low memory") +def test_large_string_addition_error(str_dt): + very_large = np.iinfo(np.intc).max // np.dtype(f"{str_dt}1").itemsize + + a = np.array(["A" * very_large], dtype=str_dt) + b = np.array("B", dtype=str_dt) + try: + with pytest.raises(TypeError): + np.add(a, b) + with pytest.raises(TypeError): + np.add(a, a) + except MemoryError: + # Catch memory errors, because `requires_memory` would do so. + raise AssertionError("Ops should raise before any large allocation.") + + +def test_large_string_cast(): + very_large = np.iinfo(np.intc).max // 4 + # Could be nice to test very large path, but it makes too many huge + # allocations right now (need non-legacy cast loops for this). + # a = np.array([], dtype=np.dtype(("S", very_large))) + # assert a.astype("U").dtype.itemsize == very_large * 4 + + a = np.array([], dtype=np.dtype(("S", very_large + 1))) + # It is not perfect but OK if this raises a MemoryError during setup + # (this happens due clunky code and/or buffer setup.) + with pytest.raises((TypeError, MemoryError)): + a.astype("U") + + +@pytest.mark.parametrize("dt", ["S1", "U1"]) +def test_in_place_mutiply_no_overflow(dt): + # see gh-30495 + a = np.array("a", dtype=dt) + a *= 20 + assert_array_equal(a, np.array("a", dtype=dt)) + + +@pytest.mark.parametrize("dt", ["S", "U", "T"]) +class TestMethods: + + @pytest.mark.parametrize("in1,in2,out", [ + ("", "", ""), + ("abc", "abc", "abcabc"), + ("12345", "12345", "1234512345"), + ("MixedCase", "MixedCase", "MixedCaseMixedCase"), + ("12345 \0 ", "12345 \0 ", "12345 \0 12345 \0 "), + ("UPPER", "UPPER", "UPPERUPPER"), + (["abc", "def"], ["hello", "world"], ["abchello", "defworld"]), + ]) + def test_add(self, in1, in2, out, dt): + in1 = np.array(in1, dtype=dt) + in2 = np.array(in2, dtype=dt) + out = np.array(out, dtype=dt) + assert_array_equal(np.strings.add(in1, in2), out) + + @pytest.mark.parametrize("in1,in2,out", [ + ("abc", 3, "abcabcabc"), + ("abc", 0, ""), + ("abc", -1, ""), + (["abc", "def"], [1, 4], ["abc", "defdefdefdef"]), + ]) + def test_multiply(self, in1, in2, out, dt): + in1 = np.array(in1, dtype=dt) + out = np.array(out, dtype=dt) + assert_array_equal(np.strings.multiply(in1, in2), out) + + def test_multiply_raises(self, dt): + with pytest.raises(TypeError, match="unsupported type"): + np.strings.multiply(np.array("abc", dtype=dt), 3.14) + + with pytest.raises(OverflowError): + np.strings.multiply(np.array("abc", dtype=dt), sys.maxsize) + + def test_inplace_multiply(self, dt): + arr = np.array(['foo ', 'bar'], dtype=dt) + arr *= 2 + if dt != "T": + assert_array_equal(arr, np.array(['foo ', 'barb'], dtype=dt)) + else: + assert_array_equal(arr, ['foo foo ', 'barbar']) + + with pytest.raises(OverflowError): + arr *= sys.maxsize + + @pytest.mark.parametrize("i_dt", [np.int8, np.int16, np.int32, + np.int64, np.int_]) + def test_multiply_integer_dtypes(self, i_dt, dt): + a = np.array("abc", dtype=dt) + i = np.array(3, dtype=i_dt) + res = np.array("abcabcabc", dtype=dt) + assert_array_equal(np.strings.multiply(a, i), res) + + @pytest.mark.parametrize("in_,out", [ + ("", False), + ("a", True), + ("A", True), + ("\n", False), + ("abc", True), + ("aBc123", False), + ("abc\n", False), + (["abc", "aBc123"], [True, False]), + ]) + def test_isalpha(self, in_, out, dt): + in_ = np.array(in_, dtype=dt) + assert_array_equal(np.strings.isalpha(in_), out) + + @pytest.mark.parametrize("in_,out", [ + ('', False), + ('a', True), + ('A', True), + ('\n', False), + ('123abc456', True), + ('a1b3c', True), + ('aBc000 ', False), + ('abc\n', False), + ]) + def test_isalnum(self, in_, out, dt): + in_ = np.array(in_, dtype=dt) + assert_array_equal(np.strings.isalnum(in_), out) + + @pytest.mark.parametrize("in_,out", [ + ("", False), + ("a", False), + ("0", True), + ("012345", True), + ("012345a", False), + (["a", "012345"], [False, True]), + ]) + def test_isdigit(self, in_, out, dt): + in_ = np.array(in_, dtype=dt) + assert_array_equal(np.strings.isdigit(in_), out) + + @pytest.mark.parametrize("in_,out", [ + ("", False), + ("a", False), + ("1", False), + (" ", True), + ("\t", True), + ("\r", True), + ("\n", True), + (" \t\r \n", True), + (" \t\r\na", False), + (["\t1", " \t\r \n"], [False, True]) + ]) + def test_isspace(self, in_, out, dt): + in_ = np.array(in_, dtype=dt) + assert_array_equal(np.strings.isspace(in_), out) + + @pytest.mark.parametrize("in_,out", [ + ('', False), + ('a', True), + ('A', False), + ('\n', False), + ('abc', True), + ('aBc', False), + ('abc\n', True), + ]) + def test_islower(self, in_, out, dt): + in_ = np.array(in_, dtype=dt) + assert_array_equal(np.strings.islower(in_), out) + + @pytest.mark.parametrize("in_,out", [ + ('', False), + ('a', False), + ('A', True), + ('\n', False), + ('ABC', True), + ('AbC', False), + ('ABC\n', True), + ]) + def test_isupper(self, in_, out, dt): + in_ = np.array(in_, dtype=dt) + assert_array_equal(np.strings.isupper(in_), out) + + @pytest.mark.parametrize("in_,out", [ + ('', False), + ('a', False), + ('A', True), + ('\n', False), + ('A Titlecased Line', True), + ('A\nTitlecased Line', True), + ('A Titlecased, Line', True), + ('Not a capitalized String', False), + ('Not\ta Titlecase String', False), + ('Not--a Titlecase String', False), + ('NOT', False), + ]) + def test_istitle(self, in_, out, dt): + in_ = np.array(in_, dtype=dt) + assert_array_equal(np.strings.istitle(in_), out) + + @pytest.mark.parametrize("in_,out", [ + ("", 0), + ("abc", 3), + ("12345", 5), + ("MixedCase", 9), + ("12345 \x00 ", 8), + ("UPPER", 5), + (["abc", "12345 \x00 "], [3, 8]), + ]) + def test_str_len(self, in_, out, dt): + in_ = np.array(in_, dtype=dt) + assert_array_equal(np.strings.str_len(in_), out) + + @pytest.mark.parametrize("a,sub,start,end,out", [ + ("abcdefghiabc", "abc", 0, None, 0), + ("abcdefghiabc", "abc", 1, None, 9), + ("abcdefghiabc", "def", 4, None, -1), + ("abc", "", 0, None, 0), + ("abc", "", 3, None, 3), + ("abc", "", 4, None, -1), + ("rrarrrrrrrrra", "a", 0, None, 2), + ("rrarrrrrrrrra", "a", 4, None, 12), + ("rrarrrrrrrrra", "a", 4, 6, -1), + ("", "", 0, None, 0), + ("", "", 1, 1, -1), + ("", "", MAX, 0, -1), + ("", "xx", 0, None, -1), + ("", "xx", 1, 1, -1), + ("", "xx", MAX, 0, -1), + pytest.param(99 * "a" + "b", "b", 0, None, 99, + id="99*a+b-b-0-None-99"), + pytest.param(98 * "a" + "ba", "ba", 0, None, 98, + id="98*a+ba-ba-0-None-98"), + pytest.param(100 * "a", "b", 0, None, -1, + id="100*a-b-0-None--1"), + pytest.param(30000 * "a" + 100 * "b", 100 * "b", 0, None, 30000, + id="30000*a+100*b-100*b-0-None-30000"), + pytest.param(30000 * "a", 100 * "b", 0, None, -1, + id="30000*a-100*b-0-None--1"), + pytest.param(15000 * "a" + 15000 * "b", 15000 * "b", 0, None, 15000, + id="15000*a+15000*b-15000*b-0-None-15000"), + pytest.param(15000 * "a" + 15000 * "b", 15000 * "c", 0, None, -1, + id="15000*a+15000*b-15000*c-0-None--1"), + (["abcdefghiabc", "rrarrrrrrrrra"], ["def", "arr"], [0, 3], + None, [3, -1]), + ("Ae¢☃€ 😊" * 2, "😊", 0, None, 6), + ("Ae¢☃€ 😊" * 2, "😊", 7, None, 13), + pytest.param("A" * (2 ** 17), r"[\w]+\Z", 0, None, -1, + id=r"A*2**17-[\w]+\Z-0-None--1"), + ]) + def test_find(self, a, sub, start, end, out, dt): + if "😊" in a and dt == "S": + pytest.skip("Bytes dtype does not support non-ascii input") + a = np.array(a, dtype=dt) + sub = np.array(sub, dtype=dt) + assert_array_equal(np.strings.find(a, sub, start, end), out) + + @pytest.mark.parametrize("a,sub,start,end,out", [ + ("abcdefghiabc", "abc", 0, None, 9), + ("abcdefghiabc", "", 0, None, 12), + ("abcdefghiabc", "abcd", 0, None, 0), + ("abcdefghiabc", "abcz", 0, None, -1), + ("abc", "", 0, None, 3), + ("abc", "", 3, None, 3), + ("abc", "", 4, None, -1), + ("rrarrrrrrrrra", "a", 0, None, 12), + ("rrarrrrrrrrra", "a", 4, None, 12), + ("rrarrrrrrrrra", "a", 4, 6, -1), + (["abcdefghiabc", "rrarrrrrrrrra"], ["abc", "a"], [0, 0], + None, [9, 12]), + ("Ae¢☃€ 😊" * 2, "😊", 0, None, 13), + ("Ae¢☃€ 😊" * 2, "😊", 0, 7, 6), + ]) + def test_rfind(self, a, sub, start, end, out, dt): + if "😊" in a and dt == "S": + pytest.skip("Bytes dtype does not support non-ascii input") + a = np.array(a, dtype=dt) + sub = np.array(sub, dtype=dt) + assert_array_equal(np.strings.rfind(a, sub, start, end), out) + + @pytest.mark.parametrize("a,sub,start,end,out", [ + ("aaa", "a", 0, None, 3), + ("aaa", "b", 0, None, 0), + ("aaa", "a", 1, None, 2), + ("aaa", "a", 10, None, 0), + ("aaa", "a", -1, None, 1), + ("aaa", "a", -10, None, 3), + ("aaa", "a", 0, 1, 1), + ("aaa", "a", 0, 10, 3), + ("aaa", "a", 0, -1, 2), + ("aaa", "a", 0, -10, 0), + ("aaa", "", 1, None, 3), + ("aaa", "", 3, None, 1), + ("aaa", "", 10, None, 0), + ("aaa", "", -1, None, 2), + ("aaa", "", -10, None, 4), + ("aaa", "aaaa", 0, None, 0), + pytest.param(98 * "a" + "ba", "ba", 0, None, 1, + id="98*a+ba-ba-0-None-1"), + pytest.param(30000 * "a" + 100 * "b", 100 * "b", 0, None, 1, + id="30000*a+100*b-100*b-0-None-1"), + pytest.param(30000 * "a", 100 * "b", 0, None, 0, + id="30000*a-100*b-0-None-0"), + pytest.param(30000 * "a" + 100 * "ab", "ab", 0, None, 100, + id="30000*a+100*ab-ab-0-None-100"), + pytest.param(15000 * "a" + 15000 * "b", 15000 * "b", 0, None, 1, + id="15000*a+15000*b-15000*b-0-None-1"), + pytest.param(15000 * "a" + 15000 * "b", 15000 * "c", 0, None, 0, + id="15000*a+15000*b-15000*c-0-None-0"), + ("", "", 0, None, 1), + ("", "", 1, 1, 0), + ("", "", MAX, 0, 0), + ("", "xx", 0, None, 0), + ("", "xx", 1, 1, 0), + ("", "xx", MAX, 0, 0), + (["aaa", ""], ["a", ""], [0, 0], None, [3, 1]), + ("Ae¢☃€ 😊" * 100, "😊", 0, None, 100), + ]) + def test_count(self, a, sub, start, end, out, dt): + if "😊" in a and dt == "S": + pytest.skip("Bytes dtype does not support non-ascii input") + a = np.array(a, dtype=dt) + sub = np.array(sub, dtype=dt) + assert_array_equal(np.strings.count(a, sub, start, end), out) + + @pytest.mark.parametrize("a,prefix,start,end,out", [ + ("hello", "he", 0, None, True), + ("hello", "hello", 0, None, True), + ("hello", "hello world", 0, None, False), + ("hello", "", 0, None, True), + ("hello", "ello", 0, None, False), + ("hello", "ello", 1, None, True), + ("hello", "o", 4, None, True), + ("hello", "o", 5, None, False), + ("hello", "", 5, None, True), + ("hello", "lo", 6, None, False), + ("helloworld", "lowo", 3, None, True), + ("helloworld", "lowo", 3, 7, True), + ("helloworld", "lowo", 3, 6, False), + ("", "", 0, 1, True), + ("", "", 0, 0, True), + ("", "", 1, 0, False), + ("hello", "he", 0, -1, True), + ("hello", "he", -53, -1, True), + ("hello", "hello", 0, -1, False), + ("hello", "hello world", -1, -10, False), + ("hello", "ello", -5, None, False), + ("hello", "ello", -4, None, True), + ("hello", "o", -2, None, False), + ("hello", "o", -1, None, True), + ("hello", "", -3, -3, True), + ("hello", "lo", -9, None, False), + (["hello", ""], ["he", ""], [0, 0], None, [True, True]), + ]) + def test_startswith(self, a, prefix, start, end, out, dt): + a = np.array(a, dtype=dt) + prefix = np.array(prefix, dtype=dt) + assert_array_equal(np.strings.startswith(a, prefix, start, end), out) + + @pytest.mark.parametrize("a,suffix,start,end,out", [ + ("hello", "lo", 0, None, True), + ("hello", "he", 0, None, False), + ("hello", "", 0, None, True), + ("hello", "hello world", 0, None, False), + ("helloworld", "worl", 0, None, False), + ("helloworld", "worl", 3, 9, True), + ("helloworld", "world", 3, 12, True), + ("helloworld", "lowo", 1, 7, True), + ("helloworld", "lowo", 2, 7, True), + ("helloworld", "lowo", 3, 7, True), + ("helloworld", "lowo", 4, 7, False), + ("helloworld", "lowo", 3, 8, False), + ("ab", "ab", 0, 1, False), + ("ab", "ab", 0, 0, False), + ("", "", 0, 1, True), + ("", "", 0, 0, True), + ("", "", 1, 0, False), + ("hello", "lo", -2, None, True), + ("hello", "he", -2, None, False), + ("hello", "", -3, -3, True), + ("hello", "hello world", -10, -2, False), + ("helloworld", "worl", -6, None, False), + ("helloworld", "worl", -5, -1, True), + ("helloworld", "worl", -5, 9, True), + ("helloworld", "world", -7, 12, True), + ("helloworld", "lowo", -99, -3, True), + ("helloworld", "lowo", -8, -3, True), + ("helloworld", "lowo", -7, -3, True), + ("helloworld", "lowo", 3, -4, False), + ("helloworld", "lowo", -8, -2, False), + (["hello", "helloworld"], ["lo", "worl"], [0, -6], None, + [True, False]), + ]) + def test_endswith(self, a, suffix, start, end, out, dt): + a = np.array(a, dtype=dt) + suffix = np.array(suffix, dtype=dt) + assert_array_equal(np.strings.endswith(a, suffix, start, end), out) + + @pytest.mark.parametrize("a,chars,out", [ + ("", None, ""), + (" hello ", None, "hello "), + ("hello", None, "hello"), + (" \t\n\r\f\vabc \t\n\r\f\v", None, "abc \t\n\r\f\v"), + ([" hello ", "hello"], None, ["hello ", "hello"]), + ("", "", ""), + ("", "xyz", ""), + ("hello", "", "hello"), + ("xyzzyhelloxyzzy", "xyz", "helloxyzzy"), + ("hello", "xyz", "hello"), + ("xyxz", "xyxz", ""), + ("xyxzx", "x", "yxzx"), + (["xyzzyhelloxyzzy", "hello"], ["xyz", "xyz"], + ["helloxyzzy", "hello"]), + (["ba", "ac", "baa", "bba"], "b", ["a", "ac", "aa", "a"]), + ]) + def test_lstrip(self, a, chars, out, dt): + a = np.array(a, dtype=dt) + out = np.array(out, dtype=dt) + if chars is not None: + chars = np.array(chars, dtype=dt) + assert_array_equal(np.strings.lstrip(a, chars), out) + else: + assert_array_equal(np.strings.lstrip(a), out) + + @pytest.mark.parametrize("a,chars,out", [ + ("", None, ""), + (" hello ", None, " hello"), + ("hello", None, "hello"), + (" \t\n\r\f\vabc \t\n\r\f\v", None, " \t\n\r\f\vabc"), + ([" hello ", "hello"], None, [" hello", "hello"]), + ("", "", ""), + ("", "xyz", ""), + ("hello", "", "hello"), + (["hello ", "abcdefghijklmnop"], None, + ["hello", "abcdefghijklmnop"]), + ("xyzzyhelloxyzzy", "xyz", "xyzzyhello"), + ("hello", "xyz", "hello"), + ("xyxz", "xyxz", ""), + (" ", None, ""), + ("xyxzx", "x", "xyxz"), + (["xyzzyhelloxyzzy", "hello"], ["xyz", "xyz"], + ["xyzzyhello", "hello"]), + (["ab", "ac", "aab", "abb"], "b", ["a", "ac", "aa", "a"]), + ]) + def test_rstrip(self, a, chars, out, dt): + a = np.array(a, dtype=dt) + out = np.array(out, dtype=dt) + if chars is not None: + chars = np.array(chars, dtype=dt) + assert_array_equal(np.strings.rstrip(a, chars), out) + else: + assert_array_equal(np.strings.rstrip(a), out) + + @pytest.mark.parametrize("a,chars,out", [ + ("", None, ""), + (" hello ", None, "hello"), + ("hello", None, "hello"), + (" \t\n\r\f\vabc \t\n\r\f\v", None, "abc"), + ([" hello ", "hello"], None, ["hello", "hello"]), + ("", "", ""), + ("", "xyz", ""), + ("hello", "", "hello"), + ("xyzzyhelloxyzzy", "xyz", "hello"), + ("hello", "xyz", "hello"), + ("xyxz", "xyxz", ""), + ("xyxzx", "x", "yxz"), + (["xyzzyhelloxyzzy", "hello"], ["xyz", "xyz"], + ["hello", "hello"]), + (["bab", "ac", "baab", "bbabb"], "b", ["a", "ac", "aa", "a"]), + ]) + def test_strip(self, a, chars, out, dt): + a = np.array(a, dtype=dt) + if chars is not None: + chars = np.array(chars, dtype=dt) + out = np.array(out, dtype=dt) + assert_array_equal(np.strings.strip(a, chars), out) + + @pytest.mark.parametrize("buf,old,new,count,res", [ + ("", "", "", -1, ""), + ("", "", "A", -1, "A"), + ("", "A", "", -1, ""), + ("", "A", "A", -1, ""), + ("", "", "", 100, ""), + ("", "", "A", 100, "A"), + ("A", "", "", -1, "A"), + ("A", "", "*", -1, "*A*"), + ("A", "", "*1", -1, "*1A*1"), + ("A", "", "*-#", -1, "*-#A*-#"), + ("AA", "", "*-", -1, "*-A*-A*-"), + ("AA", "", "*-", -1, "*-A*-A*-"), + ("AA", "", "*-", 4, "*-A*-A*-"), + ("AA", "", "*-", 3, "*-A*-A*-"), + ("AA", "", "*-", 2, "*-A*-A"), + ("AA", "", "*-", 1, "*-AA"), + ("AA", "", "*-", 0, "AA"), + ("A", "A", "", -1, ""), + ("AAA", "A", "", -1, ""), + ("AAA", "A", "", -1, ""), + ("AAA", "A", "", 4, ""), + ("AAA", "A", "", 3, ""), + ("AAA", "A", "", 2, "A"), + ("AAA", "A", "", 1, "AA"), + ("AAA", "A", "", 0, "AAA"), + ("AAAAAAAAAA", "A", "", -1, ""), + ("ABACADA", "A", "", -1, "BCD"), + ("ABACADA", "A", "", -1, "BCD"), + ("ABACADA", "A", "", 5, "BCD"), + ("ABACADA", "A", "", 4, "BCD"), + ("ABACADA", "A", "", 3, "BCDA"), + ("ABACADA", "A", "", 2, "BCADA"), + ("ABACADA", "A", "", 1, "BACADA"), + ("ABACADA", "A", "", 0, "ABACADA"), + ("ABCAD", "A", "", -1, "BCD"), + ("ABCADAA", "A", "", -1, "BCD"), + ("BCD", "A", "", -1, "BCD"), + ("*************", "A", "", -1, "*************"), + ("^" + "A" * 1000 + "^", "A", "", 999, "^A^"), + ("the", "the", "", -1, ""), + ("theater", "the", "", -1, "ater"), + ("thethe", "the", "", -1, ""), + ("thethethethe", "the", "", -1, ""), + ("theatheatheathea", "the", "", -1, "aaaa"), + ("that", "the", "", -1, "that"), + ("thaet", "the", "", -1, "thaet"), + ("here and there", "the", "", -1, "here and re"), + ("here and there and there", "the", "", -1, "here and re and re"), + ("here and there and there", "the", "", 3, "here and re and re"), + ("here and there and there", "the", "", 2, "here and re and re"), + ("here and there and there", "the", "", 1, "here and re and there"), + ("here and there and there", "the", "", 0, "here and there and there"), + ("here and there and there", "the", "", -1, "here and re and re"), + ("abc", "the", "", -1, "abc"), + ("abcdefg", "the", "", -1, "abcdefg"), + ("bbobob", "bob", "", -1, "bob"), + ("bbobobXbbobob", "bob", "", -1, "bobXbob"), + ("aaaaaaabob", "bob", "", -1, "aaaaaaa"), + ("aaaaaaa", "bob", "", -1, "aaaaaaa"), + ("Who goes there?", "o", "o", -1, "Who goes there?"), + ("Who goes there?", "o", "O", -1, "WhO gOes there?"), + ("Who goes there?", "o", "O", -1, "WhO gOes there?"), + ("Who goes there?", "o", "O", 3, "WhO gOes there?"), + ("Who goes there?", "o", "O", 2, "WhO gOes there?"), + ("Who goes there?", "o", "O", 1, "WhO goes there?"), + ("Who goes there?", "o", "O", 0, "Who goes there?"), + ("Who goes there?", "a", "q", -1, "Who goes there?"), + ("Who goes there?", "W", "w", -1, "who goes there?"), + ("WWho goes there?WW", "W", "w", -1, "wwho goes there?ww"), + ("Who goes there?", "?", "!", -1, "Who goes there!"), + ("Who goes there??", "?", "!", -1, "Who goes there!!"), + ("Who goes there?", ".", "!", -1, "Who goes there?"), + ("This is a tissue", "is", "**", -1, "Th** ** a t**sue"), + ("This is a tissue", "is", "**", -1, "Th** ** a t**sue"), + ("This is a tissue", "is", "**", 4, "Th** ** a t**sue"), + ("This is a tissue", "is", "**", 3, "Th** ** a t**sue"), + ("This is a tissue", "is", "**", 2, "Th** ** a tissue"), + ("This is a tissue", "is", "**", 1, "Th** is a tissue"), + ("This is a tissue", "is", "**", 0, "This is a tissue"), + ("bobob", "bob", "cob", -1, "cobob"), + ("bobobXbobobob", "bob", "cob", -1, "cobobXcobocob"), + ("bobob", "bot", "bot", -1, "bobob"), + ("Reykjavik", "k", "KK", -1, "ReyKKjaviKK"), + ("Reykjavik", "k", "KK", -1, "ReyKKjaviKK"), + ("Reykjavik", "k", "KK", 2, "ReyKKjaviKK"), + ("Reykjavik", "k", "KK", 1, "ReyKKjavik"), + ("Reykjavik", "k", "KK", 0, "Reykjavik"), + ("A.B.C.", ".", "----", -1, "A----B----C----"), + ("Reykjavik", "q", "KK", -1, "Reykjavik"), + ("spam, spam, eggs and spam", "spam", "ham", -1, + "ham, ham, eggs and ham"), + ("spam, spam, eggs and spam", "spam", "ham", -1, + "ham, ham, eggs and ham"), + ("spam, spam, eggs and spam", "spam", "ham", 4, + "ham, ham, eggs and ham"), + ("spam, spam, eggs and spam", "spam", "ham", 3, + "ham, ham, eggs and ham"), + ("spam, spam, eggs and spam", "spam", "ham", 2, + "ham, ham, eggs and spam"), + ("spam, spam, eggs and spam", "spam", "ham", 1, + "ham, spam, eggs and spam"), + ("spam, spam, eggs and spam", "spam", "ham", 0, + "spam, spam, eggs and spam"), + ("bobobob", "bobob", "bob", -1, "bobob"), + ("bobobobXbobobob", "bobob", "bob", -1, "bobobXbobob"), + ("BOBOBOB", "bob", "bobby", -1, "BOBOBOB"), + ("one!two!three!", "!", "@", 1, "one@two!three!"), + ("one!two!three!", "!", "", -1, "onetwothree"), + ("one!two!three!", "!", "@", 2, "one@two@three!"), + ("one!two!three!", "!", "@", 3, "one@two@three@"), + ("one!two!three!", "!", "@", 4, "one@two@three@"), + ("one!two!three!", "!", "@", 0, "one!two!three!"), + ("one!two!three!", "!", "@", -1, "one@two@three@"), + ("one!two!three!", "x", "@", -1, "one!two!three!"), + ("one!two!three!", "x", "@", 2, "one!two!three!"), + ("abc", "", "-", -1, "-a-b-c-"), + ("abc", "", "-", 3, "-a-b-c"), + ("abc", "", "-", 0, "abc"), + ("abc", "ab", "--", 0, "abc"), + ("abc", "xy", "--", -1, "abc"), + (["abbc", "abbd"], "b", "z", [1, 2], ["azbc", "azzd"]), + ]) + def test_replace(self, buf, old, new, count, res, dt): + if "😊" in buf and dt == "S": + pytest.skip("Bytes dtype does not support non-ascii input") + buf = np.array(buf, dtype=dt) + old = np.array(old, dtype=dt) + new = np.array(new, dtype=dt) + res = np.array(res, dtype=dt) + assert_array_equal(np.strings.replace(buf, old, new, count), res) + + @pytest.mark.parametrize("buf,sub,start,end,res", [ + ("abcdefghiabc", "", 0, None, 0), + ("abcdefghiabc", "def", 0, None, 3), + ("abcdefghiabc", "abc", 0, None, 0), + ("abcdefghiabc", "abc", 1, None, 9), + ]) + def test_index(self, buf, sub, start, end, res, dt): + buf = np.array(buf, dtype=dt) + sub = np.array(sub, dtype=dt) + assert_array_equal(np.strings.index(buf, sub, start, end), res) + + @pytest.mark.parametrize("buf,sub,start,end", [ + ("abcdefghiabc", "hib", 0, None), + ("abcdefghiab", "abc", 1, None), + ("abcdefghi", "ghi", 8, None), + ("abcdefghi", "ghi", -1, None), + ("rrarrrrrrrrra", "a", 4, 6), + ]) + def test_index_raises(self, buf, sub, start, end, dt): + buf = np.array(buf, dtype=dt) + sub = np.array(sub, dtype=dt) + with pytest.raises(ValueError, match="substring not found"): + np.strings.index(buf, sub, start, end) + + @pytest.mark.parametrize("buf,sub,start,end,res", [ + ("abcdefghiabc", "", 0, None, 12), + ("abcdefghiabc", "def", 0, None, 3), + ("abcdefghiabc", "abc", 0, None, 9), + ("abcdefghiabc", "abc", 0, -1, 0), + ]) + def test_rindex(self, buf, sub, start, end, res, dt): + buf = np.array(buf, dtype=dt) + sub = np.array(sub, dtype=dt) + assert_array_equal(np.strings.rindex(buf, sub, start, end), res) + + @pytest.mark.parametrize("buf,sub,start,end", [ + ("abcdefghiabc", "hib", 0, None), + ("defghiabc", "def", 1, None), + ("defghiabc", "abc", 0, -1), + ("abcdefghi", "ghi", 0, 8), + ("abcdefghi", "ghi", 0, -1), + ("rrarrrrrrrrra", "a", 4, 6), + ]) + def test_rindex_raises(self, buf, sub, start, end, dt): + buf = np.array(buf, dtype=dt) + sub = np.array(sub, dtype=dt) + with pytest.raises(ValueError, match="substring not found"): + np.strings.rindex(buf, sub, start, end) + + @pytest.mark.parametrize("buf,tabsize,res", [ + ("abc\rab\tdef\ng\thi", 8, "abc\rab def\ng hi"), + ("abc\rab\tdef\ng\thi", 4, "abc\rab def\ng hi"), + ("abc\r\nab\tdef\ng\thi", 8, "abc\r\nab def\ng hi"), + ("abc\r\nab\tdef\ng\thi", 4, "abc\r\nab def\ng hi"), + ("abc\r\nab\r\ndef\ng\r\nhi", 4, "abc\r\nab\r\ndef\ng\r\nhi"), + (" \ta\n\tb", 1, " a\n b"), + ]) + def test_expandtabs(self, buf, tabsize, res, dt): + buf = np.array(buf, dtype=dt) + res = np.array(res, dtype=dt) + assert_array_equal(np.strings.expandtabs(buf, tabsize), res) + + def test_expandtabs_raises_overflow(self, dt): + with pytest.raises(OverflowError, match="new string is too long"): + np.strings.expandtabs(np.array("\ta\n\tb", dtype=dt), sys.maxsize) + np.strings.expandtabs(np.array("\ta\n\tb", dtype=dt), 2**61) + + def test_expandtabs_length_not_cause_segfault(self, dt): + # see gh-28829 + with pytest.raises( + _UFuncNoLoopError, + match="did not contain a loop with signature matching types", + ): + np._core.strings._expandtabs_length.reduce(np.zeros(200)) + + with pytest.raises( + _UFuncNoLoopError, + match="did not contain a loop with signature matching types", + ): + np.strings.expandtabs(np.zeros(200)) + + FILL_ERROR = "The fill character must be exactly one character long" + + def test_center_raises_multiple_character_fill(self, dt): + buf = np.array("abc", dtype=dt) + fill = np.array("**", dtype=dt) + with pytest.raises(TypeError, match=self.FILL_ERROR): + np.strings.center(buf, 10, fill) + + def test_ljust_raises_multiple_character_fill(self, dt): + buf = np.array("abc", dtype=dt) + fill = np.array("**", dtype=dt) + with pytest.raises(TypeError, match=self.FILL_ERROR): + np.strings.ljust(buf, 10, fill) + + def test_rjust_raises_multiple_character_fill(self, dt): + buf = np.array("abc", dtype=dt) + fill = np.array("**", dtype=dt) + with pytest.raises(TypeError, match=self.FILL_ERROR): + np.strings.rjust(buf, 10, fill) + + @pytest.mark.parametrize("buf,width,fillchar,res", [ + ('abc', 10, ' ', ' abc '), + ('abc', 6, ' ', ' abc '), + ('abc', 3, ' ', 'abc'), + ('abc', 2, ' ', 'abc'), + ('abc', -2, ' ', 'abc'), + ('abc', 10, '*', '***abc****'), + ]) + def test_center(self, buf, width, fillchar, res, dt): + buf = np.array(buf, dtype=dt) + fillchar = np.array(fillchar, dtype=dt) + res = np.array(res, dtype=dt) + assert_array_equal(np.strings.center(buf, width, fillchar), res) + + @pytest.mark.parametrize("buf,width,fillchar,res", [ + ('abc', 10, ' ', 'abc '), + ('abc', 6, ' ', 'abc '), + ('abc', 3, ' ', 'abc'), + ('abc', 2, ' ', 'abc'), + ('abc', -2, ' ', 'abc'), + ('abc', 10, '*', 'abc*******'), + ]) + def test_ljust(self, buf, width, fillchar, res, dt): + buf = np.array(buf, dtype=dt) + fillchar = np.array(fillchar, dtype=dt) + res = np.array(res, dtype=dt) + assert_array_equal(np.strings.ljust(buf, width, fillchar), res) + + @pytest.mark.parametrize("buf,width,fillchar,res", [ + ('abc', 10, ' ', ' abc'), + ('abc', 6, ' ', ' abc'), + ('abc', 3, ' ', 'abc'), + ('abc', 2, ' ', 'abc'), + ('abc', -2, ' ', 'abc'), + ('abc', 10, '*', '*******abc'), + ]) + def test_rjust(self, buf, width, fillchar, res, dt): + buf = np.array(buf, dtype=dt) + fillchar = np.array(fillchar, dtype=dt) + res = np.array(res, dtype=dt) + assert_array_equal(np.strings.rjust(buf, width, fillchar), res) + + @pytest.mark.parametrize("buf,width,res", [ + ('123', 2, '123'), + ('123', 3, '123'), + ('0123', 4, '0123'), + ('+123', 3, '+123'), + ('+123', 4, '+123'), + ('+123', 5, '+0123'), + ('+0123', 5, '+0123'), + ('-123', 3, '-123'), + ('-123', 4, '-123'), + ('-0123', 5, '-0123'), + ('000', 3, '000'), + ('34', 1, '34'), + ('34', -1, '34'), + ('0034', 4, '0034'), + ]) + def test_zfill(self, buf, width, res, dt): + buf = np.array(buf, dtype=dt) + res = np.array(res, dtype=dt) + assert_array_equal(np.strings.zfill(buf, width), res) + + @pytest.mark.parametrize("buf,sep,res1,res2,res3", [ + ("this is the partition method", "ti", "this is the par", + "ti", "tion method"), + ("http://www.python.org", "://", "http", "://", "www.python.org"), + ("http://www.python.org", "?", "http://www.python.org", "", ""), + ("http://www.python.org", "http://", "", "http://", "www.python.org"), + ("http://www.python.org", "org", "http://www.python.", "org", ""), + ("http://www.python.org", ["://", "?", "http://", "org"], + ["http", "http://www.python.org", "", "http://www.python."], + ["://", "", "http://", "org"], + ["www.python.org", "", "www.python.org", ""]), + ("mississippi", "ss", "mi", "ss", "issippi"), + ("mississippi", "i", "m", "i", "ssissippi"), + ("mississippi", "w", "mississippi", "", ""), + ]) + def test_partition(self, buf, sep, res1, res2, res3, dt): + buf = np.array(buf, dtype=dt) + sep = np.array(sep, dtype=dt) + res1 = np.array(res1, dtype=dt) + res2 = np.array(res2, dtype=dt) + res3 = np.array(res3, dtype=dt) + act1, act2, act3 = np.strings.partition(buf, sep) + assert_array_equal(act1, res1) + assert_array_equal(act2, res2) + assert_array_equal(act3, res3) + assert_array_equal(act1 + act2 + act3, buf) + + @pytest.mark.parametrize("buf,sep,res1,res2,res3", [ + ("this is the partition method", "ti", "this is the parti", + "ti", "on method"), + ("http://www.python.org", "://", "http", "://", "www.python.org"), + ("http://www.python.org", "?", "", "", "http://www.python.org"), + ("http://www.python.org", "http://", "", "http://", "www.python.org"), + ("http://www.python.org", "org", "http://www.python.", "org", ""), + ("http://www.python.org", ["://", "?", "http://", "org"], + ["http", "", "", "http://www.python."], + ["://", "", "http://", "org"], + ["www.python.org", "http://www.python.org", "www.python.org", ""]), + ("mississippi", "ss", "missi", "ss", "ippi"), + ("mississippi", "i", "mississipp", "i", ""), + ("mississippi", "w", "", "", "mississippi"), + ]) + def test_rpartition(self, buf, sep, res1, res2, res3, dt): + buf = np.array(buf, dtype=dt) + sep = np.array(sep, dtype=dt) + res1 = np.array(res1, dtype=dt) + res2 = np.array(res2, dtype=dt) + res3 = np.array(res3, dtype=dt) + act1, act2, act3 = np.strings.rpartition(buf, sep) + assert_array_equal(act1, res1) + assert_array_equal(act2, res2) + assert_array_equal(act3, res3) + assert_array_equal(act1 + act2 + act3, buf) + + @pytest.mark.parametrize("args", [ + (None,), + (None, None), + (None, None, -1), + (0,), + (0, None), + (0, None, -1), + (1,), + (1, None), + (1, None, -1), + (3,), + (3, None), + (5,), + (5, None), + (5, 5), + (5, 5, -1), + (6,), # test index past the end + (6, None), + (6, None, -1), + (6, 7), # test start and stop index past the end + (4, 3), # test start > stop index + (-1,), + (-1, None), + (-1, None, -1), + (-3,), + (-3, None), + ([3, 4],), + ([3, 4], None), + ([2, 4],), + ([-3, 5],), + ([-3, 5], None), + ([-3, 5], None, -1), + ([0, -5],), + ([0, -5], None), + ([0, -5], None, -1), + (1, 4), + (-3, 5), + (None, -1), + (0, [4, 2]), + ([1, 2], [-1, -2]), + (1, 5, 2), + (None, None, -1), + ([0, 6], [-1, 0], [2, -1]), + ]) + @pytest.mark.parametrize("buf", [ + ["hello", "world"], + ['hello world', 'γεια σου κόσμε', '你好世界', '👋 🌍'], + ]) + def test_slice(self, args, buf, dt): + if dt == "S" and "你好世界" in buf: + pytest.skip("Bytes dtype does not support non-ascii input") + if len(buf) == 4: + args = tuple(s * 2 if isinstance(s, list) else s for s in args) + buf = np.array(buf, dtype=dt) + act = np.strings.slice(buf, *args) + bcast_args = tuple(np.broadcast_to(arg, buf.shape) for arg in args) + res = np.array([s[slice(*arg)] + for s, arg in zip(buf, zip(*bcast_args))], + dtype=dt) + assert_array_equal(act, res) + + def test_slice_unsupported(self, dt): + with pytest.raises(TypeError, match="did not contain a loop"): + np.strings.slice(np.array([1, 2, 3]), 4) + + regexp = (r"Cannot cast ufunc '_slice' input .* " + r"from .* to dtype\('int(64|32)'\)") + with pytest.raises(TypeError, match=regexp): + np.strings.slice(np.array(['foo', 'bar'], dtype=dt), + np.array(['foo', 'bar'], dtype=dt)) + + @pytest.mark.parametrize("int_dt", [np.int8, np.int16, np.int32, + np.int64, np.uint8, np.uint16, + np.uint32, np.uint64]) + def test_slice_int_type_promotion(self, int_dt, dt): + buf = np.array(["hello", "world"], dtype=dt) + np_slice = np.strings.slice + assert_array_equal(np_slice(buf, int_dt(4)), + np.array(["hell", "worl"], dtype=dt)) + assert_array_equal(np_slice(buf, np.array([4, 4], dtype=int_dt)), + np.array(["hell", "worl"], dtype=dt)) + + assert_array_equal(np_slice(buf, int_dt(2), int_dt(4)), + np.array(["ll", "rl"], dtype=dt)) + assert_array_equal(np_slice(buf, np.array([2, 2], dtype=int_dt), + np.array([4, 4], dtype=int_dt)), + np.array(["ll", "rl"], dtype=dt)) + + assert_array_equal(np_slice(buf, int_dt(0), int_dt(4), int_dt(2)), + np.array(["hl", "wr"], dtype=dt)) + assert_array_equal(np_slice(buf, + np.array([0, 0], dtype=int_dt), + np.array([4, 4], dtype=int_dt), + np.array([2, 2], dtype=int_dt)), + np.array(["hl", "wr"], dtype=dt)) + +@pytest.mark.parametrize("dt", ["U", "T"]) +class TestMethodsWithUnicode: + @pytest.mark.parametrize("in_,out", [ + ("", False), + ("a", False), + ("0", True), + ("\u2460", False), # CIRCLED DIGIT 1 + ("\xbc", False), # VULGAR FRACTION ONE QUARTER + ("\u0660", True), # ARABIC_INDIC DIGIT ZERO + ("012345", True), + ("012345a", False), + (["0", "a"], [True, False]), + ]) + def test_isdecimal_unicode(self, in_, out, dt): + buf = np.array(in_, dtype=dt) + assert_array_equal(np.strings.isdecimal(buf), out) + + @pytest.mark.parametrize("in_,out", [ + ("", False), + ("a", False), + ("0", True), + ("\u2460", True), # CIRCLED DIGIT 1 + ("\xbc", True), # VULGAR FRACTION ONE QUARTER + ("\u0660", True), # ARABIC_INDIC DIGIT ZERO + ("012345", True), + ("012345a", False), + (["0", "a"], [True, False]), + ]) + def test_isnumeric_unicode(self, in_, out, dt): + buf = np.array(in_, dtype=dt) + assert_array_equal(np.strings.isnumeric(buf), out) + + @pytest.mark.parametrize("buf,old,new,count,res", [ + ("...\u043c......<", "<", "<", -1, "...\u043c......<"), + ("Ae¢☃€ 😊" * 2, "A", "B", -1, "Be¢☃€ 😊Be¢☃€ 😊"), + ("Ae¢☃€ 😊" * 2, "😊", "B", -1, "Ae¢☃€ BAe¢☃€ B"), + ]) + def test_replace_unicode(self, buf, old, new, count, res, dt): + buf = np.array(buf, dtype=dt) + old = np.array(old, dtype=dt) + new = np.array(new, dtype=dt) + res = np.array(res, dtype=dt) + assert_array_equal(np.strings.replace(buf, old, new, count), res) + + @pytest.mark.parametrize("in_", [ + '\U00010401', + '\U00010427', + '\U00010429', + '\U0001044E', + '\U0001D7F6', + '\U00011066', + '\U000104A0', + pytest.param('\U0001F107', marks=pytest.mark.xfail( + sys.platform == 'win32' and IS_PYPY_LT_7_3_16, + reason="PYPY bug in Py_UNICODE_ISALNUM", + strict=True)), + ]) + def test_isalnum_unicode(self, in_, dt): + in_ = np.array(in_, dtype=dt) + assert_array_equal(np.strings.isalnum(in_), True) + + @pytest.mark.parametrize("in_,out", [ + ('\u1FFc', False), + ('\u2167', False), + ('\U00010401', False), + ('\U00010427', False), + ('\U0001F40D', False), + ('\U0001F46F', False), + ('\u2177', True), + pytest.param('\U00010429', True, marks=pytest.mark.xfail( + sys.platform == 'win32' and IS_PYPY_LT_7_3_16, + reason="PYPY bug in Py_UNICODE_ISLOWER", + strict=True)), + ('\U0001044E', True), + ]) + def test_islower_unicode(self, in_, out, dt): + in_ = np.array(in_, dtype=dt) + assert_array_equal(np.strings.islower(in_), out) + + @pytest.mark.parametrize("in_,out", [ + ('\u1FFc', False), + ('\u2167', True), + ('\U00010401', True), + ('\U00010427', True), + ('\U0001F40D', False), + ('\U0001F46F', False), + ('\u2177', False), + pytest.param('\U00010429', False, marks=pytest.mark.xfail( + sys.platform == 'win32' and IS_PYPY_LT_7_3_16, + reason="PYPY bug in Py_UNICODE_ISUPPER", + strict=True)), + ('\U0001044E', False), + ]) + def test_isupper_unicode(self, in_, out, dt): + in_ = np.array(in_, dtype=dt) + assert_array_equal(np.strings.isupper(in_), out) + + @pytest.mark.parametrize("in_,out", [ + ('\u1FFc', True), + ('Greek \u1FFcitlecases ...', True), + pytest.param('\U00010401\U00010429', True, marks=pytest.mark.xfail( + sys.platform == 'win32' and IS_PYPY_LT_7_3_16, + reason="PYPY bug in Py_UNICODE_ISISTITLE", + strict=True)), + ('\U00010427\U0001044E', True), + pytest.param('\U00010429', False, marks=pytest.mark.xfail( + sys.platform == 'win32' and IS_PYPY_LT_7_3_16, + reason="PYPY bug in Py_UNICODE_ISISTITLE", + strict=True)), + ('\U0001044E', False), + ('\U0001F40D', False), + ('\U0001F46F', False), + ]) + def test_istitle_unicode(self, in_, out, dt): + in_ = np.array(in_, dtype=dt) + assert_array_equal(np.strings.istitle(in_), out) + + @pytest.mark.parametrize("buf,sub,start,end,res", [ + ("Ae¢☃€ 😊" * 2, "😊", 0, None, 6), + ("Ae¢☃€ 😊" * 2, "😊", 7, None, 13), + ]) + def test_index_unicode(self, buf, sub, start, end, res, dt): + buf = np.array(buf, dtype=dt) + sub = np.array(sub, dtype=dt) + assert_array_equal(np.strings.index(buf, sub, start, end), res) + + def test_index_raises_unicode(self, dt): + with pytest.raises(ValueError, match="substring not found"): + np.strings.index("Ae¢☃€ 😊", "😀") + + @pytest.mark.parametrize("buf,res", [ + ("Ae¢☃€ \t 😊", "Ae¢☃€ 😊"), + ("\t\U0001044E", " \U0001044E"), + ]) + def test_expandtabs(self, buf, res, dt): + buf = np.array(buf, dtype=dt) + res = np.array(res, dtype=dt) + assert_array_equal(np.strings.expandtabs(buf), res) + + @pytest.mark.parametrize("buf,width,fillchar,res", [ + ('x', 2, '\U0001044E', 'x\U0001044E'), + ('x', 3, '\U0001044E', '\U0001044Ex\U0001044E'), + ('x', 4, '\U0001044E', '\U0001044Ex\U0001044E\U0001044E'), + ]) + def test_center(self, buf, width, fillchar, res, dt): + buf = np.array(buf, dtype=dt) + fillchar = np.array(fillchar, dtype=dt) + res = np.array(res, dtype=dt) + assert_array_equal(np.strings.center(buf, width, fillchar), res) + + @pytest.mark.parametrize("buf,width,fillchar,res", [ + ('x', 2, '\U0001044E', 'x\U0001044E'), + ('x', 3, '\U0001044E', 'x\U0001044E\U0001044E'), + ('x', 4, '\U0001044E', 'x\U0001044E\U0001044E\U0001044E'), + ]) + def test_ljust(self, buf, width, fillchar, res, dt): + buf = np.array(buf, dtype=dt) + fillchar = np.array(fillchar, dtype=dt) + res = np.array(res, dtype=dt) + assert_array_equal(np.strings.ljust(buf, width, fillchar), res) + + @pytest.mark.parametrize("buf,width,fillchar,res", [ + ('x', 2, '\U0001044E', '\U0001044Ex'), + ('x', 3, '\U0001044E', '\U0001044E\U0001044Ex'), + ('x', 4, '\U0001044E', '\U0001044E\U0001044E\U0001044Ex'), + ]) + def test_rjust(self, buf, width, fillchar, res, dt): + buf = np.array(buf, dtype=dt) + fillchar = np.array(fillchar, dtype=dt) + res = np.array(res, dtype=dt) + assert_array_equal(np.strings.rjust(buf, width, fillchar), res) + + @pytest.mark.parametrize("buf,sep,res1,res2,res3", [ + ("āāāāĀĀĀĀ", "Ă", "āāāāĀĀĀĀ", "", ""), + ("āāāāĂĀĀĀĀ", "Ă", "āāāā", "Ă", "ĀĀĀĀ"), + ("āāāāĂĂĀĀĀĀ", "ĂĂ", "āāāā", "ĂĂ", "ĀĀĀĀ"), + ("𐌁𐌁𐌁𐌁𐌀𐌀𐌀𐌀", "𐌂", "𐌁𐌁𐌁𐌁𐌀𐌀𐌀𐌀", "", ""), + ("𐌁𐌁𐌁𐌁𐌂𐌀𐌀𐌀𐌀", "𐌂", "𐌁𐌁𐌁𐌁", "𐌂", "𐌀𐌀𐌀𐌀"), + ("𐌁𐌁𐌁𐌁𐌂𐌂𐌀𐌀𐌀𐌀", "𐌂𐌂", "𐌁𐌁𐌁𐌁", "𐌂𐌂", "𐌀𐌀𐌀𐌀"), + ("𐌁𐌁𐌁𐌁𐌂𐌂𐌂𐌂𐌀𐌀𐌀𐌀", "𐌂𐌂𐌂𐌂", "𐌁𐌁𐌁𐌁", "𐌂𐌂𐌂𐌂", "𐌀𐌀𐌀𐌀"), + ]) + def test_partition(self, buf, sep, res1, res2, res3, dt): + buf = np.array(buf, dtype=dt) + sep = np.array(sep, dtype=dt) + res1 = np.array(res1, dtype=dt) + res2 = np.array(res2, dtype=dt) + res3 = np.array(res3, dtype=dt) + act1, act2, act3 = np.strings.partition(buf, sep) + assert_array_equal(act1, res1) + assert_array_equal(act2, res2) + assert_array_equal(act3, res3) + assert_array_equal(act1 + act2 + act3, buf) + + @pytest.mark.parametrize("buf,sep,res1,res2,res3", [ + ("āāāāĀĀĀĀ", "Ă", "", "", "āāāāĀĀĀĀ"), + ("āāāāĂĀĀĀĀ", "Ă", "āāāā", "Ă", "ĀĀĀĀ"), + ("āāāāĂĂĀĀĀĀ", "ĂĂ", "āāāā", "ĂĂ", "ĀĀĀĀ"), + ("𐌁𐌁𐌁𐌁𐌀𐌀𐌀𐌀", "𐌂", "", "", "𐌁𐌁𐌁𐌁𐌀𐌀𐌀𐌀"), + ("𐌁𐌁𐌁𐌁𐌂𐌀𐌀𐌀𐌀", "𐌂", "𐌁𐌁𐌁𐌁", "𐌂", "𐌀𐌀𐌀𐌀"), + ("𐌁𐌁𐌁𐌁𐌂𐌂𐌀𐌀𐌀𐌀", "𐌂𐌂", "𐌁𐌁𐌁𐌁", "𐌂𐌂", "𐌀𐌀𐌀𐌀"), + ]) + def test_rpartition(self, buf, sep, res1, res2, res3, dt): + buf = np.array(buf, dtype=dt) + sep = np.array(sep, dtype=dt) + res1 = np.array(res1, dtype=dt) + res2 = np.array(res2, dtype=dt) + res3 = np.array(res3, dtype=dt) + act1, act2, act3 = np.strings.rpartition(buf, sep) + assert_array_equal(act1, res1) + assert_array_equal(act2, res2) + assert_array_equal(act3, res3) + assert_array_equal(act1 + act2 + act3, buf) + + @pytest.mark.parametrize("method", ["strip", "lstrip", "rstrip"]) + @pytest.mark.parametrize( + "source,strip", + [ + ("λμ", "μ"), + ("λμ", "λ"), + ("λ" * 5 + "μ" * 2, "μ"), + ("λ" * 5 + "μ" * 2, "λ"), + ("λ" * 5 + "A" + "μ" * 2, "μλ"), + ("λμ" * 5, "μ"), + ("λμ" * 5, "λ"), + ]) + def test_strip_functions_unicode(self, source, strip, method, dt): + src_array = np.array([source], dtype=dt) + + npy_func = getattr(np.strings, method) + py_func = getattr(str, method) + + expected = np.array([py_func(source, strip)], dtype=dt) + actual = npy_func(src_array, strip) + + assert_array_equal(actual, expected) + + @pytest.mark.parametrize("args", [ + (None,), + (0,), + (1,), + (5,), + (15,), + (22,), + (-1,), + (-3,), + ([3, 4],), + ([-5, 5],), + ([0, -8],), + (1, 12), + (-12, 15), + (None, -1), + (0, [17, 6]), + ([1, 2], [-1, -2]), + (1, 11, 2), + (None, None, -1), + ([0, 10], [-1, 0], [2, -1]), + ]) + def test_slice(self, args, dt): + buf = np.array(["Приве́т नमस्ते שָׁלוֹם", "😀😃😄😁😆😅🤣😂🙂🙃"], + dtype=dt) + act = np.strings.slice(buf, *args) + bcast_args = tuple(np.broadcast_to(arg, buf.shape) for arg in args) + res = np.array([s[slice(*arg)] + for s, arg in zip(buf, zip(*bcast_args))], + dtype=dt) + assert_array_equal(act, res) + + +class TestMixedTypeMethods: + def test_center(self): + buf = np.array("😊", dtype="U") + fill = np.array("*", dtype="S") + res = np.array("*😊*", dtype="U") + assert_array_equal(np.strings.center(buf, 3, fill), res) + + buf = np.array("s", dtype="S") + fill = np.array("*", dtype="U") + res = np.array("*s*", dtype="S") + assert_array_equal(np.strings.center(buf, 3, fill), res) + + with pytest.raises(ValueError, match="'ascii' codec can't encode"): + buf = np.array("s", dtype="S") + fill = np.array("😊", dtype="U") + np.strings.center(buf, 3, fill) + + def test_ljust(self): + buf = np.array("😊", dtype="U") + fill = np.array("*", dtype="S") + res = np.array("😊**", dtype="U") + assert_array_equal(np.strings.ljust(buf, 3, fill), res) + + buf = np.array("s", dtype="S") + fill = np.array("*", dtype="U") + res = np.array("s**", dtype="S") + assert_array_equal(np.strings.ljust(buf, 3, fill), res) + + with pytest.raises(ValueError, match="'ascii' codec can't encode"): + buf = np.array("s", dtype="S") + fill = np.array("😊", dtype="U") + np.strings.ljust(buf, 3, fill) + + def test_rjust(self): + buf = np.array("😊", dtype="U") + fill = np.array("*", dtype="S") + res = np.array("**😊", dtype="U") + assert_array_equal(np.strings.rjust(buf, 3, fill), res) + + buf = np.array("s", dtype="S") + fill = np.array("*", dtype="U") + res = np.array("**s", dtype="S") + assert_array_equal(np.strings.rjust(buf, 3, fill), res) + + with pytest.raises(ValueError, match="'ascii' codec can't encode"): + buf = np.array("s", dtype="S") + fill = np.array("😊", dtype="U") + np.strings.rjust(buf, 3, fill) + + +class TestUnicodeOnlyMethodsRaiseWithBytes: + def test_isdecimal_raises(self): + in_ = np.array(b"1") + with assert_raises(TypeError): + np.strings.isdecimal(in_) + + def test_isnumeric_bytes(self): + in_ = np.array(b"1") + with assert_raises(TypeError): + np.strings.isnumeric(in_) + + +def check_itemsize(n_elem, dt): + if dt == "T": + return np.dtype(dt).itemsize + if dt == "S": + return n_elem + if dt == "U": + return n_elem * 4 + +@pytest.mark.parametrize("dt", ["S", "U", "T"]) +class TestReplaceOnArrays: + + def test_replace_count_and_size(self, dt): + a = np.array(["0123456789" * i for i in range(4)], dtype=dt) + r1 = np.strings.replace(a, "5", "ABCDE") + assert r1.dtype.itemsize == check_itemsize(3 * 10 + 3 * 4, dt) + r1_res = np.array(["01234ABCDE6789" * i for i in range(4)], dtype=dt) + assert_array_equal(r1, r1_res) + r2 = np.strings.replace(a, "5", "ABCDE", 1) + assert r2.dtype.itemsize == check_itemsize(3 * 10 + 4, dt) + r3 = np.strings.replace(a, "5", "ABCDE", 0) + assert r3.dtype.itemsize == a.dtype.itemsize + assert_array_equal(r3, a) + # Negative values mean to replace all. + r4 = np.strings.replace(a, "5", "ABCDE", -1) + assert r4.dtype.itemsize == check_itemsize(3 * 10 + 3 * 4, dt) + assert_array_equal(r4, r1) + # We can do count on an element-by-element basis. + r5 = np.strings.replace(a, "5", "ABCDE", [-1, -1, -1, 1]) + assert r5.dtype.itemsize == check_itemsize(3 * 10 + 4, dt) + assert_array_equal(r5, np.array( + ["01234ABCDE6789" * i for i in range(3)] + + ["01234ABCDE6789" + "0123456789" * 2], dtype=dt)) + + def test_replace_broadcasting(self, dt): + a = np.array("0,0,0", dtype=dt) + r1 = np.strings.replace(a, "0", "1", np.arange(3)) + assert r1.dtype == a.dtype + assert_array_equal(r1, np.array(["0,0,0", "1,0,0", "1,1,0"], dtype=dt)) + r2 = np.strings.replace(a, "0", [["1"], ["2"]], np.arange(1, 4)) + assert_array_equal(r2, np.array([["1,0,0", "1,1,0", "1,1,1"], + ["2,0,0", "2,2,0", "2,2,2"]], + dtype=dt)) + r3 = np.strings.replace(a, ["0", "0,0", "0,0,0"], "X") + assert_array_equal(r3, np.array(["X,X,X", "X,0", "X"], dtype=dt)) + + +class TestOverride: + @classmethod + def setup_class(cls): + class Override: + + def __array_function__(self, *args, **kwargs): + return "function" + + def __array_ufunc__(self, *args, **kwargs): + return "ufunc" + + cls.override = Override() + + @pytest.mark.parametrize("func, kwargs", [ + (np.strings.center, dict(width=10)), + (np.strings.capitalize, {}), + (np.strings.decode, {}), + (np.strings.encode, {}), + (np.strings.expandtabs, {}), + (np.strings.ljust, dict(width=10)), + (np.strings.lower, {}), + (np.strings.mod, dict(values=2)), + (np.strings.multiply, dict(i=2)), + (np.strings.partition, dict(sep="foo")), + (np.strings.rjust, dict(width=10)), + (np.strings.rpartition, dict(sep="foo")), + (np.strings.swapcase, {}), + (np.strings.title, {}), + (np.strings.translate, dict(table=None)), + (np.strings.upper, {}), + (np.strings.zfill, dict(width=10)), + ]) + def test_override_function(self, func, kwargs): + assert func(self.override, **kwargs) == "function" + + @pytest.mark.parametrize("func, args, kwargs", [ + (np.strings.add, (None, ), {}), + (np.strings.lstrip, (), {}), + (np.strings.rstrip, (), {}), + (np.strings.strip, (), {}), + (np.strings.equal, (None, ), {}), + (np.strings.not_equal, (None, ), {}), + (np.strings.greater_equal, (None, ), {}), + (np.strings.less_equal, (None, ), {}), + (np.strings.greater, (None, ), {}), + (np.strings.less, (None, ), {}), + (np.strings.count, ("foo", ), {}), + (np.strings.endswith, ("foo", ), {}), + (np.strings.find, ("foo", ), {}), + (np.strings.index, ("foo", ), {}), + (np.strings.isalnum, (), {}), + (np.strings.isalpha, (), {}), + (np.strings.isdecimal, (), {}), + (np.strings.isdigit, (), {}), + (np.strings.islower, (), {}), + (np.strings.isnumeric, (), {}), + (np.strings.isspace, (), {}), + (np.strings.istitle, (), {}), + (np.strings.isupper, (), {}), + (np.strings.rfind, ("foo", ), {}), + (np.strings.rindex, ("foo", ), {}), + (np.strings.startswith, ("foo", ), {}), + (np.strings.str_len, (), {}), + ]) + def test_override_ufunc(self, func, args, kwargs): + assert func(self.override, *args, **kwargs) == "ufunc" diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_ufunc.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_ufunc.py new file mode 100644 index 0000000000000000000000000000000000000000..5c507c17ec0c61670a0fa6add67d8c7a57b8ecfd --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_ufunc.py @@ -0,0 +1,3409 @@ +import ctypes as ct +import inspect +import itertools +import pickle +import sys +import warnings + +import pytest +from pytest import param + +import numpy as np +import numpy._core._operand_flag_tests as opflag_tests +import numpy._core._rational_tests as _rational_tests +import numpy._core._umath_tests as umt +import numpy._core.umath as ncu +import numpy.linalg._umath_linalg as uml +from numpy.exceptions import AxisError +from numpy.testing import ( + HAS_REFCOUNT, + IS_PYPY, + IS_WASM, + assert_, + assert_allclose, + assert_almost_equal, + assert_array_almost_equal, + assert_array_equal, + assert_equal, + assert_no_warnings, + assert_raises, +) +from numpy.testing._private.utils import requires_memory + +UNARY_UFUNCS = [obj for obj in np._core.umath.__dict__.values() + if isinstance(obj, np.ufunc)] +UNARY_OBJECT_UFUNCS = [uf for uf in UNARY_UFUNCS if "O->O" in uf.types] + +# Remove functions that do not support `floats` +UNARY_OBJECT_UFUNCS.remove(np.bitwise_count) + + +class TestUfuncKwargs: + def test_kwarg_exact(self): + assert_raises(TypeError, np.add, 1, 2, castingx='safe') + assert_raises(TypeError, np.add, 1, 2, dtypex=int) + assert_raises(TypeError, np.add, 1, 2, extobjx=[4096]) + assert_raises(TypeError, np.add, 1, 2, outx=None) + assert_raises(TypeError, np.add, 1, 2, sigx='ii->i') + assert_raises(TypeError, np.add, 1, 2, signaturex='ii->i') + assert_raises(TypeError, np.add, 1, 2, subokx=False) + assert_raises(TypeError, np.add, 1, 2, wherex=[True]) + + def test_sig_signature(self): + assert_raises(TypeError, np.add, 1, 2, sig='ii->i', + signature='ii->i') + + def test_sig_dtype(self): + assert_raises(TypeError, np.add, 1, 2, sig='ii->i', + dtype=int) + assert_raises(TypeError, np.add, 1, 2, signature='ii->i', + dtype=int) + + def test_extobj_removed(self): + assert_raises(TypeError, np.add, 1, 2, extobj=[4096]) + + +class TestUfuncGenericLoops: + """Test generic loops. + + The loops to be tested are: + + PyUFunc_ff_f_As_dd_d + PyUFunc_ff_f + PyUFunc_dd_d + PyUFunc_gg_g + PyUFunc_FF_F_As_DD_D + PyUFunc_DD_D + PyUFunc_FF_F + PyUFunc_GG_G + PyUFunc_OO_O + PyUFunc_OO_O_method + PyUFunc_f_f_As_d_d + PyUFunc_d_d + PyUFunc_f_f + PyUFunc_g_g + PyUFunc_F_F_As_D_D + PyUFunc_F_F + PyUFunc_D_D + PyUFunc_G_G + PyUFunc_O_O + PyUFunc_O_O_method + PyUFunc_On_Om + + Where: + + f -- float + d -- double + g -- long double + F -- complex float + D -- complex double + G -- complex long double + O -- python object + + It is difficult to assure that each of these loops is entered from the + Python level as the special cased loops are a moving target and the + corresponding types are architecture dependent. We probably need to + define C level testing ufuncs to get at them. For the time being, I've + just looked at the signatures registered in the build directory to find + relevant functions. + + """ + np_dtypes = [ + (np.single, np.single), (np.single, np.double), + (np.csingle, np.csingle), (np.csingle, np.cdouble), + (np.double, np.double), (np.longdouble, np.longdouble), + (np.cdouble, np.cdouble), (np.clongdouble, np.clongdouble)] + + @pytest.mark.parametrize('input_dtype,output_dtype', np_dtypes) + def test_unary_PyUFunc(self, input_dtype, output_dtype, f=np.exp, x=0, y=1): + xs = np.full(10, input_dtype(x), dtype=output_dtype) + ys = f(xs)[::2] + assert_allclose(ys, y) + assert_equal(ys.dtype, output_dtype) + + def f2(x, y): + return x**y + + @pytest.mark.parametrize('input_dtype,output_dtype', np_dtypes) + def test_binary_PyUFunc(self, input_dtype, output_dtype, f=f2, x=0, y=1): + xs = np.full(10, input_dtype(x), dtype=output_dtype) + ys = f(xs, xs)[::2] + assert_allclose(ys, y) + assert_equal(ys.dtype, output_dtype) + + # class to use in testing object method loops + class foo: + def conjugate(self): + return np.bool(1) + + def logical_xor(self, obj): + return np.bool(1) + + def test_unary_PyUFunc_O_O(self): + x = np.ones(10, dtype=object) + assert_(np.all(np.abs(x) == 1)) + + def test_unary_PyUFunc_O_O_method_simple(self, foo=foo): + x = np.full(10, foo(), dtype=object) + assert_(np.all(np.conjugate(x) == True)) + + def test_binary_PyUFunc_OO_O(self): + x = np.ones(10, dtype=object) + assert_(np.all(np.add(x, x) == 2)) + + def test_binary_PyUFunc_OO_O_method(self, foo=foo): + x = np.full(10, foo(), dtype=object) + assert_(np.all(np.logical_xor(x, x))) + + def test_binary_PyUFunc_On_Om_method(self, foo=foo): + x = np.full((10, 2, 3), foo(), dtype=object) + assert_(np.all(np.logical_xor(x, x))) + + def test_python_complex_conjugate(self): + # The conjugate ufunc should fall back to calling the method: + arr = np.array([1 + 2j, 3 - 4j], dtype="O") + assert isinstance(arr[0], complex) + res = np.conjugate(arr) + assert res.dtype == np.dtype("O") + assert_array_equal(res, np.array([1 - 2j, 3 + 4j], dtype="O")) + + @pytest.mark.parametrize("ufunc", UNARY_OBJECT_UFUNCS) + def test_unary_PyUFunc_O_O_method_full(self, ufunc): + """Compare the result of the object loop with non-object one""" + val = np.float64(np.pi / 4) + + class MyFloat(np.float64): + def __getattr__(self, attr): + try: + return super().__getattr__(attr) + except AttributeError: + return lambda: getattr(np._core.umath, attr)(val) + + # Use 0-D arrays, to ensure the same element call + num_arr = np.array(val, dtype=np.float64) + obj_arr = np.array(MyFloat(val), dtype="O") + + with np.errstate(all="raise"): + try: + res_num = ufunc(num_arr) + except Exception as exc: + with assert_raises(type(exc)): + ufunc(obj_arr) + else: + res_obj = ufunc(obj_arr) + assert_array_almost_equal(res_num.astype("O"), res_obj) + + +def _pickleable_module_global(): + pass + + +class TestUfunc: + def test_pickle(self): + for proto in range(2, pickle.HIGHEST_PROTOCOL + 1): + assert_(pickle.loads(pickle.dumps(np.sin, + protocol=proto)) is np.sin) + + # Check that ufunc not defined in the top level numpy namespace + # such as numpy._core._rational_tests.test_add can also be pickled + res = pickle.loads(pickle.dumps(_rational_tests.test_add, + protocol=proto)) + assert_(res is _rational_tests.test_add) + + def test_pickle_withstring(self): + astring = (b"cnumpy.core\n_ufunc_reconstruct\np0\n" + b"(S'numpy._core.umath'\np1\nS'cos'\np2\ntp3\nRp4\n.") + assert_(pickle.loads(astring) is np.cos) + + @pytest.mark.skipif(IS_PYPY, reason="'is' check does not work on PyPy") + def test_pickle_name_is_qualname(self): + # This tests that a simplification of our ufunc pickle code will + # lead to allowing qualnames as names. Future ufuncs should + # possible add a specific qualname, or a hook into pickling instead + # (dask+numba may benefit). + _pickleable_module_global.ufunc = umt._pickleable_module_global_ufunc + + obj = pickle.loads(pickle.dumps(_pickleable_module_global.ufunc)) + assert obj is umt._pickleable_module_global_ufunc + + def test_reduceat_shifting_sum(self): + L = 6 + x = np.arange(L) + idx = np.array(list(zip(np.arange(L - 2), np.arange(L - 2) + 2))).ravel() + assert_array_equal(np.add.reduceat(x, idx)[::2], [1, 3, 5, 7]) + + def test_all_ufunc(self): + """Try to check presence and results of all ufuncs. + + The list of ufuncs comes from generate_umath.py and is as follows: + + ===== ==== ============= =============== ======================== + done args function types notes + ===== ==== ============= =============== ======================== + n 1 conjugate nums + O + n 1 absolute nums + O complex -> real + n 1 negative nums + O + n 1 sign nums + O -> int + n 1 invert bool + ints + O flts raise an error + n 1 degrees real + M cmplx raise an error + n 1 radians real + M cmplx raise an error + n 1 arccos flts + M + n 1 arccosh flts + M + n 1 arcsin flts + M + n 1 arcsinh flts + M + n 1 arctan flts + M + n 1 arctanh flts + M + n 1 cos flts + M + n 1 sin flts + M + n 1 tan flts + M + n 1 cosh flts + M + n 1 sinh flts + M + n 1 tanh flts + M + n 1 exp flts + M + n 1 expm1 flts + M + n 1 log flts + M + n 1 log10 flts + M + n 1 log1p flts + M + n 1 sqrt flts + M real x < 0 raises error + n 1 ceil real + M + n 1 trunc real + M + n 1 floor real + M + n 1 fabs real + M + n 1 rint flts + M + n 1 isnan flts -> bool + n 1 isinf flts -> bool + n 1 isfinite flts -> bool + n 1 signbit real -> bool + n 1 modf real -> (frac, int) + n 1 logical_not bool + nums + M -> bool + n 2 left_shift ints + O flts raise an error + n 2 right_shift ints + O flts raise an error + n 2 add bool + nums + O boolean + is || + n 2 subtract bool + nums + O boolean - is ^ + n 2 multiply bool + nums + O boolean * is & + n 2 divide nums + O + n 2 floor_divide nums + O + n 2 true_divide nums + O bBhH -> f, iIlLqQ -> d + n 2 fmod nums + M + n 2 power nums + O + n 2 greater bool + nums + O -> bool + n 2 greater_equal bool + nums + O -> bool + n 2 less bool + nums + O -> bool + n 2 less_equal bool + nums + O -> bool + n 2 equal bool + nums + O -> bool + n 2 not_equal bool + nums + O -> bool + n 2 logical_and bool + nums + M -> bool + n 2 logical_or bool + nums + M -> bool + n 2 logical_xor bool + nums + M -> bool + n 2 maximum bool + nums + O + n 2 minimum bool + nums + O + n 2 bitwise_and bool + ints + O flts raise an error + n 2 bitwise_or bool + ints + O flts raise an error + n 2 bitwise_xor bool + ints + O flts raise an error + n 2 arctan2 real + M + n 2 remainder ints + real + O + n 2 hypot real + M + ===== ==== ============= =============== ======================== + + Types other than those listed will be accepted, but they are cast to + the smallest compatible type for which the function is defined. The + casting rules are: + + bool -> int8 -> float32 + ints -> double + + """ + pass + + # from include/numpy/ufuncobject.h + size_inferred = 2 + can_ignore = 4 + + def test_signature0(self): + # the arguments to test_signature are: nin, nout, core_signature + enabled, num_dims, ixs, flags, sizes = umt.test_signature( + 2, 1, "(i),(i)->()") + assert_equal(enabled, 1) + assert_equal(num_dims, (1, 1, 0)) + assert_equal(ixs, (0, 0)) + assert_equal(flags, (self.size_inferred,)) + assert_equal(sizes, (-1,)) + + def test_signature1(self): + # empty core signature; treat as plain ufunc (with trivial core) + enabled, num_dims, ixs, flags, sizes = umt.test_signature( + 2, 1, "(),()->()") + assert_equal(enabled, 0) + assert_equal(num_dims, (0, 0, 0)) + assert_equal(ixs, ()) + assert_equal(flags, ()) + assert_equal(sizes, ()) + + def test_signature2(self): + # more complicated names for variables + enabled, num_dims, ixs, flags, sizes = umt.test_signature( + 2, 1, "(i1,i2),(J_1)->(_kAB)") + assert_equal(enabled, 1) + assert_equal(num_dims, (2, 1, 1)) + assert_equal(ixs, (0, 1, 2, 3)) + assert_equal(flags, (self.size_inferred,) * 4) + assert_equal(sizes, (-1, -1, -1, -1)) + + def test_signature3(self): + enabled, num_dims, ixs, flags, sizes = umt.test_signature( + 2, 1, "(i1, i12), (J_1)->(i12, i2)") + assert_equal(enabled, 1) + assert_equal(num_dims, (2, 1, 2)) + assert_equal(ixs, (0, 1, 2, 1, 3)) + assert_equal(flags, (self.size_inferred,) * 4) + assert_equal(sizes, (-1, -1, -1, -1)) + + def test_signature4(self): + # matrix_multiply signature from _umath_tests + enabled, num_dims, ixs, flags, sizes = umt.test_signature( + 2, 1, "(n,k),(k,m)->(n,m)") + assert_equal(enabled, 1) + assert_equal(num_dims, (2, 2, 2)) + assert_equal(ixs, (0, 1, 1, 2, 0, 2)) + assert_equal(flags, (self.size_inferred,) * 3) + assert_equal(sizes, (-1, -1, -1)) + + def test_signature5(self): + # matmul signature from _umath_tests + enabled, num_dims, ixs, flags, sizes = umt.test_signature( + 2, 1, "(n?,k),(k,m?)->(n?,m?)") + assert_equal(enabled, 1) + assert_equal(num_dims, (2, 2, 2)) + assert_equal(ixs, (0, 1, 1, 2, 0, 2)) + assert_equal(flags, (self.size_inferred | self.can_ignore, + self.size_inferred, + self.size_inferred | self.can_ignore)) + assert_equal(sizes, (-1, -1, -1)) + + def test_signature6(self): + enabled, num_dims, ixs, flags, sizes = umt.test_signature( + 1, 1, "(3)->()") + assert_equal(enabled, 1) + assert_equal(num_dims, (1, 0)) + assert_equal(ixs, (0,)) + assert_equal(flags, (0,)) + assert_equal(sizes, (3,)) + + def test_signature7(self): + enabled, num_dims, ixs, flags, sizes = umt.test_signature( + 3, 1, "(3),(03,3),(n)->(9)") + assert_equal(enabled, 1) + assert_equal(num_dims, (1, 2, 1, 1)) + assert_equal(ixs, (0, 0, 0, 1, 2)) + assert_equal(flags, (0, self.size_inferred, 0)) + assert_equal(sizes, (3, -1, 9)) + + def test_signature8(self): + enabled, num_dims, ixs, flags, sizes = umt.test_signature( + 3, 1, "(3?),(3?,3?),(n)->(9)") + assert_equal(enabled, 1) + assert_equal(num_dims, (1, 2, 1, 1)) + assert_equal(ixs, (0, 0, 0, 1, 2)) + assert_equal(flags, (self.can_ignore, self.size_inferred, 0)) + assert_equal(sizes, (3, -1, 9)) + + def test_signature9(self): + enabled, num_dims, ixs, flags, sizes = umt.test_signature( + 1, 1, "( 3) -> ( )") + assert_equal(enabled, 1) + assert_equal(num_dims, (1, 0)) + assert_equal(ixs, (0,)) + assert_equal(flags, (0,)) + assert_equal(sizes, (3,)) + + def test_signature10(self): + enabled, num_dims, ixs, flags, sizes = umt.test_signature( + 3, 1, "( 3? ) , (3? , 3?) ,(n )-> ( 9)") + assert_equal(enabled, 1) + assert_equal(num_dims, (1, 2, 1, 1)) + assert_equal(ixs, (0, 0, 0, 1, 2)) + assert_equal(flags, (self.can_ignore, self.size_inferred, 0)) + assert_equal(sizes, (3, -1, 9)) + + def test_signature_failure_extra_parenthesis(self): + with assert_raises(ValueError): + umt.test_signature(2, 1, "((i)),(i)->()") + + def test_signature_failure_mismatching_parenthesis(self): + with assert_raises(ValueError): + umt.test_signature(2, 1, "(i),)i(->()") + + def test_signature_failure_signature_missing_input_arg(self): + with assert_raises(ValueError): + umt.test_signature(2, 1, "(i),->()") + + def test_signature_failure_signature_missing_output_arg(self): + with assert_raises(ValueError): + umt.test_signature(2, 2, "(i),(i)->()") + + def test_get_signature(self): + assert_equal(np.vecdot.signature, "(n),(n)->()") + + def test_forced_sig(self): + a = 0.5 * np.arange(3, dtype='f8') + assert_equal(np.add(a, 0.5), [0.5, 1, 1.5]) + with assert_raises(TypeError): + np.add(a, 0.5, sig='i', casting='unsafe') + assert_equal(np.add(a, 0.5, sig='ii->i', casting='unsafe'), [0, 0, 1]) + with assert_raises(TypeError): + np.add(a, 0.5, sig=('i4',), casting='unsafe') + assert_equal(np.add(a, 0.5, sig=('i4', 'i4', 'i4'), + casting='unsafe'), [0, 0, 1]) + + b = np.zeros((3,), dtype='f8') + np.add(a, 0.5, out=b) + assert_equal(b, [0.5, 1, 1.5]) + b[:] = 0 + with assert_raises(TypeError): + np.add(a, 0.5, sig='i', out=b, casting='unsafe') + assert_equal(b, [0, 0, 0]) + np.add(a, 0.5, sig='ii->i', out=b, casting='unsafe') + assert_equal(b, [0, 0, 1]) + b[:] = 0 + with assert_raises(TypeError): + np.add(a, 0.5, sig=('i4',), out=b, casting='unsafe') + assert_equal(b, [0, 0, 0]) + np.add(a, 0.5, sig=('i4', 'i4', 'i4'), out=b, casting='unsafe') + assert_equal(b, [0, 0, 1]) + + def test_signature_all_None(self): + # signature all None, is an acceptable alternative (since 1.21) + # to not providing a signature. + res1 = np.add([3], [4], sig=(None, None, None)) + res2 = np.add([3], [4]) + assert_array_equal(res1, res2) + res1 = np.maximum([3], [4], sig=(None, None, None)) + res2 = np.maximum([3], [4]) + assert_array_equal(res1, res2) + + with pytest.raises(TypeError): + # special case, that would be deprecated anyway, so errors: + np.add(3, 4, signature=(None,)) + + def test_signature_dtype_type(self): + # Since that will be the normal behaviour (past NumPy 1.21) + # we do support the types already: + float_dtype = type(np.dtype(np.float64)) + np.add(3, 4, signature=(float_dtype, float_dtype, None)) + + @pytest.mark.parametrize("get_kwarg", [ + param(lambda dt: {"dtype": dt}, id="dtype"), + param(lambda dt: {"signature": (dt, None, None)}, id="signature")]) + def test_signature_dtype_instances_allowed(self, get_kwarg): + # We allow certain dtype instances when there is a clear singleton + # and the given one is equivalent; mainly for backcompat. + int64 = np.dtype("int64") + int64_2 = pickle.loads(pickle.dumps(int64)) + # Relies on pickling behavior, if assert fails just remove test... + assert int64 is not int64_2 + + assert np.add(1, 2, **get_kwarg(int64_2)).dtype == int64 + td = np.timedelta64(2, "s") + assert np.add(td, td, **get_kwarg("m8")).dtype == "m8[s]" + + msg = "The `dtype` and `signature` arguments to ufuncs" + + with pytest.raises(TypeError, match=msg): + np.add(3, 5, **get_kwarg(np.dtype("int64").newbyteorder())) + with pytest.raises(TypeError, match=msg): + np.add(3, 5, **get_kwarg(np.dtype("m8[ns]"))) + with pytest.raises(TypeError, match=msg): + np.add(3, 5, **get_kwarg("m8[ns]")) + + @pytest.mark.parametrize("casting", ["unsafe", "same_kind", "safe"]) + def test_partial_signature_mismatch(self, casting): + # If the second argument matches already, no need to specify it: + res = np.ldexp(np.float32(1.), np.int_(2), dtype="d") + assert res.dtype == "d" + res = np.ldexp(np.float32(1.), np.int_(2), signature=(None, None, "d")) + assert res.dtype == "d" + + # ldexp only has a loop for long input as second argument, overriding + # the output cannot help with that (no matter the casting) + with pytest.raises(TypeError): + np.ldexp(1., np.uint64(3), dtype="d") + with pytest.raises(TypeError): + np.ldexp(1., np.uint64(3), signature=(None, None, "d")) + + def test_partial_signature_mismatch_with_cache(self): + with pytest.raises(TypeError): + np.add(np.float16(1), np.uint64(2), sig=("e", "d", None)) + # Ensure e,d->None is in the dispatching cache (double loop) + np.add(np.float16(1), np.float64(2)) + # The error must still be raised: + with pytest.raises(TypeError): + np.add(np.float16(1), np.uint64(2), sig=("e", "d", None)) + + def test_use_output_signature_for_all_arguments(self): + # Test that providing only `dtype=` or `signature=(None, None, dtype)` + # is sufficient if falling back to a homogeneous signature works. + # In this case, the `intp, intp -> intp` loop is chosen. + res = np.power(1.5, 2.8, dtype=np.intp, casting="unsafe") + assert res == 1 # the cast happens first. + res = np.power(1.5, 2.8, signature=(None, None, np.intp), + casting="unsafe") + assert res == 1 + with pytest.raises(TypeError): + # the unsafe casting would normally cause errors though: + np.power(1.5, 2.8, dtype=np.intp) + + def test_signature_errors(self): + with pytest.raises(TypeError, + match="the signature object to ufunc must be a string or"): + np.add(3, 4, signature=123.) # neither a string nor a tuple + + with pytest.raises(ValueError): + # bad symbols that do not translate to dtypes + np.add(3, 4, signature="%^->#") + + with pytest.raises(ValueError): + np.add(3, 4, signature=b"ii-i") # incomplete and byte string + + with pytest.raises(ValueError): + np.add(3, 4, signature="ii>i") # incomplete string + + with pytest.raises(ValueError): + np.add(3, 4, signature=(None, "f8")) # bad length + + with pytest.raises(UnicodeDecodeError): + np.add(3, 4, signature=b"\xff\xff->i") + + def test_forced_dtype_times(self): + # Signatures only set the type numbers (not the actual loop dtypes) + # so using `M` in a signature/dtype should generally work: + a = np.array(['2010-01-02', '1999-03-14', '1833-03'], dtype='>M8[D]') + np.maximum(a, a, dtype="M") + np.maximum.reduce(a, dtype="M") + + arr = np.arange(10, dtype="m8[s]") + np.add(arr, arr, dtype="m") + np.maximum(arr, arr, dtype="m") + + @pytest.mark.parametrize("ufunc", [np.add, np.sqrt]) + def test_cast_safety(self, ufunc): + """Basic test for the safest casts, because ufuncs inner loops can + indicate a cast-safety as well (which is normally always "no"). + """ + def call_ufunc(arr, **kwargs): + return ufunc(*(arr,) * ufunc.nin, **kwargs) + + arr = np.array([1., 2., 3.], dtype=np.float32) + arr_bs = arr.astype(arr.dtype.newbyteorder()) + expected = call_ufunc(arr) + # Normally, a "no" cast: + res = call_ufunc(arr, casting="no") + assert_array_equal(expected, res) + # Byte-swapping is not allowed with "no" though: + with pytest.raises(TypeError): + call_ufunc(arr_bs, casting="no") + + # But is allowed with "equiv": + res = call_ufunc(arr_bs, casting="equiv") + assert_array_equal(expected, res) + + # Casting to float64 is safe, but not equiv: + with pytest.raises(TypeError): + call_ufunc(arr_bs, dtype=np.float64, casting="equiv") + + # but it is safe cast: + res = call_ufunc(arr_bs, dtype=np.float64, casting="safe") + expected = call_ufunc(arr.astype(np.float64)) # upcast + assert_array_equal(expected, res) + + @pytest.mark.parametrize("ufunc", [np.add, np.equal]) + def test_cast_safety_scalar(self, ufunc): + # We test add and equal, because equal has special scalar handling + # Note that the "equiv" casting behavior should maybe be considered + # a current implementation detail. + with pytest.raises(TypeError): + # this picks an integer loop, which is not safe + ufunc(3., 4., dtype=int, casting="safe") + + with pytest.raises(TypeError): + # We accept python float as float64 but not float32 for equiv. + ufunc(3., 4., dtype="float32", casting="equiv") + + # Special case for object and equal (note that equiv implies safe) + ufunc(3, 4, dtype=object, casting="equiv") + # Picks a double loop for both, first is equiv, second safe: + ufunc(np.array([3.]), 3., casting="equiv") + ufunc(np.array([3.]), 3, casting="safe") + ufunc(np.array([3]), 3, casting="equiv") + + def test_cast_safety_scalar_special(self): + # We allow this (and it succeeds) via object, although the equiv + # part may not be important. + np.equal(np.array([3]), 2**300, casting="equiv") + + def test_true_divide(self): + a = np.array(10) + b = np.array(20) + tgt = np.array(0.5) + + for tc in 'bhilqBHILQefdgFDG': + dt = np.dtype(tc) + aa = a.astype(dt) + bb = b.astype(dt) + + # Check result value and dtype. + for x, y in itertools.product([aa, -aa], [bb, -bb]): + + # Check with no output type specified + if tc in 'FDG': + tgt = complex(x) / complex(y) + else: + tgt = float(x) / float(y) + + res = np.true_divide(x, y) + rtol = max(np.finfo(res).resolution, 1e-15) + assert_allclose(res, tgt, rtol=rtol) + + if tc in 'bhilqBHILQ': + assert_(res.dtype.name == 'float64') + else: + assert_(res.dtype.name == dt.name) + + # Check with output type specified. This also checks for the + # incorrect casts in issue gh-3484 because the unary '-' does + # not change types, even for unsigned types, Hence casts in the + # ufunc from signed to unsigned and vice versa will lead to + # errors in the values. + for tcout in 'bhilqBHILQ': + dtout = np.dtype(tcout) + assert_raises(TypeError, np.true_divide, x, y, dtype=dtout) + + for tcout in 'efdg': + dtout = np.dtype(tcout) + if tc in 'FDG': + # Casting complex to float is not allowed + assert_raises(TypeError, np.true_divide, x, y, dtype=dtout) + else: + tgt = float(x) / float(y) + rtol = max(np.finfo(dtout).resolution, 1e-15) + # The value of tiny for double double is NaN + with warnings.catch_warnings(): + warnings.simplefilter('ignore', UserWarning) + if not np.isnan(np.finfo(dtout).tiny): + atol = max(np.finfo(dtout).tiny, 3e-308) + else: + atol = 3e-308 + # Some test values result in invalid for float16 + # and the cast to it may overflow to inf. + with np.errstate(invalid='ignore', over='ignore'): + res = np.true_divide(x, y, dtype=dtout) + if not np.isfinite(res) and tcout == 'e': + continue + assert_allclose(res, tgt, rtol=rtol, atol=atol) + assert_(res.dtype.name == dtout.name) + + for tcout in 'FDG': + dtout = np.dtype(tcout) + tgt = complex(x) / complex(y) + rtol = max(np.finfo(dtout).resolution, 1e-15) + # The value of tiny for double double is NaN + with warnings.catch_warnings(): + warnings.simplefilter('ignore', UserWarning) + if not np.isnan(np.finfo(dtout).tiny): + atol = max(np.finfo(dtout).tiny, 3e-308) + else: + atol = 3e-308 + res = np.true_divide(x, y, dtype=dtout) + if not np.isfinite(res): + continue + assert_allclose(res, tgt, rtol=rtol, atol=atol) + assert_(res.dtype.name == dtout.name) + + # Check booleans + a = np.ones((), dtype=np.bool) + res = np.true_divide(a, a) + assert_(res == 1.0) + assert_(res.dtype.name == 'float64') + res = np.true_divide(~a, a) + assert_(res == 0.0) + assert_(res.dtype.name == 'float64') + + def test_sum_stability(self): + a = np.ones(500, dtype=np.float32) + assert_almost_equal((a / 10.).sum() - a.size / 10., 0, 4) + + a = np.ones(500, dtype=np.float64) + assert_almost_equal((a / 10.).sum() - a.size / 10., 0, 13) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + def test_sum(self): + for dt in (int, np.float16, np.float32, np.float64, np.longdouble): + for v in (0, 1, 2, 7, 8, 9, 15, 16, 19, 127, + 128, 1024, 1235): + # warning if sum overflows, which it does in float16 + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter("always", RuntimeWarning) + + tgt = dt(v * (v + 1) / 2) + overflow = not np.isfinite(tgt) + assert_equal(len(w), 1 * overflow) + + d = np.arange(1, v + 1, dtype=dt) + + assert_almost_equal(np.sum(d), tgt) + assert_equal(len(w), 2 * overflow) + + assert_almost_equal(np.sum(d[::-1]), tgt) + assert_equal(len(w), 3 * overflow) + + d = np.ones(500, dtype=dt) + assert_almost_equal(np.sum(d[::2]), 250.) + assert_almost_equal(np.sum(d[1::2]), 250.) + assert_almost_equal(np.sum(d[::3]), 167.) + assert_almost_equal(np.sum(d[1::3]), 167.) + assert_almost_equal(np.sum(d[::-2]), 250.) + assert_almost_equal(np.sum(d[-1::-2]), 250.) + assert_almost_equal(np.sum(d[::-3]), 167.) + assert_almost_equal(np.sum(d[-1::-3]), 167.) + # sum with first reduction entry != 0 + d = np.ones((1,), dtype=dt) + d += d + assert_almost_equal(d, 2.) + + def test_sum_complex(self): + for dt in (np.complex64, np.complex128, np.clongdouble): + for v in (0, 1, 2, 7, 8, 9, 15, 16, 19, 127, + 128, 1024, 1235): + tgt = dt(v * (v + 1) / 2) - dt((v * (v + 1) / 2) * 1j) + d = np.empty(v, dtype=dt) + d.real = np.arange(1, v + 1) + d.imag = -np.arange(1, v + 1) + assert_almost_equal(np.sum(d), tgt) + assert_almost_equal(np.sum(d[::-1]), tgt) + + d = np.ones(500, dtype=dt) + 1j + assert_almost_equal(np.sum(d[::2]), 250. + 250j) + assert_almost_equal(np.sum(d[1::2]), 250. + 250j) + assert_almost_equal(np.sum(d[::3]), 167. + 167j) + assert_almost_equal(np.sum(d[1::3]), 167. + 167j) + assert_almost_equal(np.sum(d[::-2]), 250. + 250j) + assert_almost_equal(np.sum(d[-1::-2]), 250. + 250j) + assert_almost_equal(np.sum(d[::-3]), 167. + 167j) + assert_almost_equal(np.sum(d[-1::-3]), 167. + 167j) + # sum with first reduction entry != 0 + d = np.ones((1,), dtype=dt) + 1j + d += d + assert_almost_equal(d, 2. + 2j) + + def test_sum_initial(self): + # Integer, single axis + assert_equal(np.sum([3], initial=2), 5) + + # Floating point + assert_almost_equal(np.sum([0.2], initial=0.1), 0.3) + + # Multiple non-adjacent axes + assert_equal(np.sum(np.ones((2, 3, 5), dtype=np.int64), axis=(0, 2), initial=2), + [12, 12, 12]) + + def test_sum_where(self): + # More extensive tests done in test_reduction_with_where. + assert_equal(np.sum([[1., 2.], [3., 4.]], where=[True, False]), 4.) + assert_equal(np.sum([[1., 2.], [3., 4.]], axis=0, initial=5., + where=[True, False]), [9., 5.]) + + def test_vecdot(self): + arr1 = np.arange(6).reshape((2, 3)) + arr2 = np.arange(3).reshape((1, 3)) + + actual = np.vecdot(arr1, arr2) + expected = np.array([5, 14]) + + assert_array_equal(actual, expected) + + actual2 = np.vecdot(arr1.T, arr2.T, axis=-2) + assert_array_equal(actual2, expected) + + actual3 = np.vecdot(arr1.astype("object"), arr2) + assert_array_equal(actual3, expected.astype("object")) + + def test_matvec(self): + arr1 = np.arange(6).reshape((2, 3)) + arr2 = np.arange(3).reshape((1, 3)) + + actual = np.matvec(arr1, arr2) + expected = np.array([[5, 14]]) + + assert_array_equal(actual, expected) + + actual2 = np.matvec(arr1.T, arr2.T, axes=[(-1, -2), -2, -1]) + assert_array_equal(actual2, expected) + + actual3 = np.matvec(arr1.astype("object"), arr2) + assert_array_equal(actual3, expected.astype("object")) + + @pytest.mark.parametrize("vec", [ + np.array([[1., 2., 3.], [4., 5., 6.]]), + np.array([[1., 2j, 3.], [4., 5., 6j]]), + np.array([[1., 2., 3.], [4., 5., 6.]], dtype=object), + np.array([[1., 2j, 3.], [4., 5., 6j]], dtype=object)]) + @pytest.mark.parametrize("matrix", [ + None, + np.array([[1. + 1j, 0.5, -0.5j], + [0.25, 2j, 0.], + [4., 0., -1j]])]) + def test_vecmatvec_identity(self, matrix, vec): + """Check that (x†A)x equals x†(Ax).""" + mat = matrix if matrix is not None else np.eye(3) + matvec = np.matvec(mat, vec) # Ax + vecmat = np.vecmat(vec, mat) # x†A + if matrix is None: + assert_array_equal(matvec, vec) + assert_array_equal(vecmat.conj(), vec) + assert_array_equal(matvec, (mat @ vec[..., np.newaxis]).squeeze(-1)) + assert_array_equal(vecmat, (vec[..., np.newaxis].mT.conj() + @ mat).squeeze(-2)) + expected = np.einsum('...i,ij,...j', vec.conj(), mat, vec) + vec_matvec = (vec.conj() * matvec).sum(-1) + vecmat_vec = (vecmat * vec).sum(-1) + assert_array_equal(vec_matvec, expected) + assert_array_equal(vecmat_vec, expected) + + @pytest.mark.parametrize("ufunc, shape1, shape2, conj", [ + (np.vecdot, (3,), (3,), True), + (np.vecmat, (3,), (3, 1), True), + (np.matvec, (1, 3), (3,), False), + (np.matmul, (1, 3), (3, 1), False), + ]) + def test_vecdot_matvec_vecmat_complex(self, ufunc, shape1, shape2, conj): + arr1 = np.array([1, 2j, 3]) + arr2 = np.array([1, 2, 3]) + + actual1 = ufunc(arr1.reshape(shape1), arr2.reshape(shape2)) + expected1 = np.array(((arr1.conj() if conj else arr1) * arr2).sum(), + ndmin=min(len(shape1), len(shape2))) + assert_array_equal(actual1, expected1) + # This would fail for conj=True, since matmul omits the conjugate. + if not conj: + assert_array_equal(arr1.reshape(shape1) @ arr2.reshape(shape2), + expected1) + + actual2 = ufunc(arr2.reshape(shape1), arr1.reshape(shape2)) + expected2 = np.array(((arr2.conj() if conj else arr2) * arr1).sum(), + ndmin=min(len(shape1), len(shape2))) + assert_array_equal(actual2, expected2) + + actual3 = ufunc(arr1.reshape(shape1).astype("object"), + arr2.reshape(shape2).astype("object")) + expected3 = expected1.astype(object) + assert_array_equal(actual3, expected3) + + def test_vecdot_subclass(self): + class MySubclass(np.ndarray): + pass + + arr1 = np.arange(6).reshape((2, 3)).view(MySubclass) + arr2 = np.arange(3).reshape((1, 3)).view(MySubclass) + result = np.vecdot(arr1, arr2) + assert isinstance(result, MySubclass) + + def test_vecdot_object_no_conjugate(self): + arr = np.array(["1", "2"], dtype=object) + with pytest.raises(AttributeError, match="conjugate"): + np.vecdot(arr, arr) + + def test_vecdot_object_breaks_outer_loop_on_error(self): + arr1 = np.ones((3, 3)).astype(object) + arr2 = arr1.copy() + arr2[1, 1] = None + out = np.zeros(3).astype(object) + with pytest.raises(TypeError, match=r"\*: 'float' and 'NoneType'"): + np.vecdot(arr1, arr2, out=out) + assert out[0] == 3 + assert out[1] == out[2] == 0 + + def test_broadcast(self): + msg = "broadcast" + a = np.arange(4).reshape((2, 1, 2)) + b = np.arange(4).reshape((1, 2, 2)) + assert_array_equal(np.vecdot(a, b), np.sum(a * b, axis=-1), err_msg=msg) + msg = "extend & broadcast loop dimensions" + b = np.arange(4).reshape((2, 2)) + assert_array_equal(np.vecdot(a, b), np.sum(a * b, axis=-1), err_msg=msg) + # Broadcast in core dimensions should fail + a = np.arange(8).reshape((4, 2)) + b = np.arange(4).reshape((4, 1)) + assert_raises(ValueError, np.vecdot, a, b) + # Extend core dimensions should fail + a = np.arange(8).reshape((4, 2)) + b = np.array(7) + assert_raises(ValueError, np.vecdot, a, b) + # Broadcast should fail + a = np.arange(2).reshape((2, 1, 1)) + b = np.arange(3).reshape((3, 1, 1)) + assert_raises(ValueError, np.vecdot, a, b) + + # Writing to a broadcasted array with overlap should warn, gh-2705 + a = np.arange(2) + b = np.arange(4).reshape((2, 2)) + u, v = np.broadcast_arrays(a, b) + assert_equal(u.strides[0], 0) + x = u + v + with warnings.catch_warnings(record=True) as w: + warnings.simplefilter("always") + u += v + assert_equal(len(w), 1) + assert_(x[0, 0] != u[0, 0]) + + # Output reduction should not be allowed. + # See gh-15139 + a = np.arange(6).reshape(3, 2) + b = np.ones(2) + out = np.empty(()) + assert_raises(ValueError, np.vecdot, a, b, out) + out2 = np.empty(3) + c = np.vecdot(a, b, out2) + assert_(c is out2) + + def test_out_broadcasts(self): + # For ufuncs and gufuncs (not for reductions), we currently allow + # the output to cause broadcasting of the input arrays. + # both along dimensions with shape 1 and dimensions which do not + # exist at all in the inputs. + arr = np.arange(3).reshape(1, 3) + out = np.empty((5, 4, 3)) + np.add(arr, arr, out=out) + assert (out == np.arange(3) * 2).all() + + # The same holds for gufuncs (gh-16484) + np.vecdot(arr, arr, out=out) + # the result would be just a scalar `5`, but is broadcast fully: + assert (out == 5).all() + + @pytest.mark.parametrize(["arr", "out"], [ + ([2], np.empty(())), + ([1, 2], np.empty(1)), + (np.ones((4, 3)), np.empty((4, 1)))], + ids=["(1,)->()", "(2,)->(1,)", "(4, 3)->(4, 1)"]) + def test_out_broadcast_errors(self, arr, out): + # Output is (currently) allowed to broadcast inputs, but it cannot be + # smaller than the actual result. + with pytest.raises(ValueError, match="non-broadcastable"): + np.positive(arr, out=out) + + with pytest.raises(ValueError, match="non-broadcastable"): + np.add(np.ones(()), arr, out=out) + + def test_type_cast(self): + msg = "type cast" + a = np.arange(6, dtype='short').reshape((2, 3)) + assert_array_equal(np.vecdot(a, a), np.sum(a * a, axis=-1), + err_msg=msg) + msg = "type cast on one argument" + a = np.arange(6).reshape((2, 3)) + b = a + 0.1 + assert_array_almost_equal(np.vecdot(a, b), np.sum(a * b, axis=-1), + err_msg=msg) + + def test_endian(self): + msg = "big endian" + a = np.arange(6, dtype='>i4').reshape((2, 3)) + assert_array_equal(np.vecdot(a, a), np.sum(a * a, axis=-1), + err_msg=msg) + msg = "little endian" + a = np.arange(6, dtype='()' + a = np.arange(27.).reshape((3, 3, 3)) + b = np.arange(10., 19.).reshape((3, 1, 3)) + # basic tests on inputs (outputs tested below with matrix_multiply). + c = np.vecdot(a, b) + assert_array_equal(c, (a * b).sum(-1)) + # default + c = np.vecdot(a, b, axes=[(-1,), (-1,), ()]) + assert_array_equal(c, (a * b).sum(-1)) + # integers ok for single axis. + c = np.vecdot(a, b, axes=[-1, -1, ()]) + assert_array_equal(c, (a * b).sum(-1)) + # mix fine + c = np.vecdot(a, b, axes=[(-1,), -1, ()]) + assert_array_equal(c, (a * b).sum(-1)) + # can omit last axis. + c = np.vecdot(a, b, axes=[-1, -1]) + assert_array_equal(c, (a * b).sum(-1)) + # can pass in other types of integer (with __index__ protocol) + c = np.vecdot(a, b, axes=[np.int8(-1), np.array(-1, dtype=np.int32)]) + assert_array_equal(c, (a * b).sum(-1)) + # swap some axes + c = np.vecdot(a, b, axes=[0, 0]) + assert_array_equal(c, (a * b).sum(0)) + c = np.vecdot(a, b, axes=[0, 2]) + assert_array_equal(c, (a.transpose(1, 2, 0) * b).sum(-1)) + # Check errors for improperly constructed axes arguments. + # should have list. + assert_raises(TypeError, np.vecdot, a, b, axes=-1) + # needs enough elements + assert_raises(ValueError, np.vecdot, a, b, axes=[-1]) + # should pass in indices. + assert_raises(TypeError, np.vecdot, a, b, axes=[-1.0, -1.0]) + assert_raises(TypeError, np.vecdot, a, b, axes=[(-1.0,), -1]) + assert_raises(TypeError, np.vecdot, a, b, axes=[None, 1]) + # cannot pass an index unless there is only one dimension + # (output is wrong in this case) + assert_raises(AxisError, np.vecdot, a, b, axes=[-1, -1, -1]) + # or pass in generally the wrong number of axes + assert_raises(AxisError, np.vecdot, a, b, axes=[-1, -1, (-1,)]) + assert_raises(AxisError, np.vecdot, a, b, axes=[-1, (-2, -1), ()]) + # axes need to have same length. + assert_raises(ValueError, np.vecdot, a, b, axes=[0, 1]) + + # matrix_multiply signature: '(m,n),(n,p)->(m,p)' + mm = umt.matrix_multiply + a = np.arange(12).reshape((2, 3, 2)) + b = np.arange(8).reshape((2, 2, 2, 1)) + 1 + # Sanity check. + c = mm(a, b) + assert_array_equal(c, np.matmul(a, b)) + # Default axes. + c = mm(a, b, axes=[(-2, -1), (-2, -1), (-2, -1)]) + assert_array_equal(c, np.matmul(a, b)) + # Default with explicit axes. + c = mm(a, b, axes=[(1, 2), (2, 3), (2, 3)]) + assert_array_equal(c, np.matmul(a, b)) + # swap some axes. + c = mm(a, b, axes=[(0, -1), (1, 2), (-2, -1)]) + assert_array_equal(c, np.matmul(a.transpose(1, 0, 2), + b.transpose(0, 3, 1, 2))) + # Default with output array. + c = np.empty((2, 2, 3, 1)) + d = mm(a, b, out=c, axes=[(1, 2), (2, 3), (2, 3)]) + assert_(c is d) + assert_array_equal(c, np.matmul(a, b)) + # Transposed output array + c = np.empty((1, 2, 2, 3)) + d = mm(a, b, out=c, axes=[(-2, -1), (-2, -1), (3, 0)]) + assert_(c is d) + assert_array_equal(c, np.matmul(a, b).transpose(3, 0, 1, 2)) + # Check errors for improperly constructed axes arguments. + # wrong argument + assert_raises(TypeError, mm, a, b, axis=1) + # axes should be list + assert_raises(TypeError, mm, a, b, axes=1) + assert_raises(TypeError, mm, a, b, axes=((-2, -1), (-2, -1), (-2, -1))) + # list needs to have right length + assert_raises(ValueError, mm, a, b, axes=[]) + assert_raises(ValueError, mm, a, b, axes=[(-2, -1)]) + # list should not contain None, or lists + assert_raises(TypeError, mm, a, b, axes=[None, None, None]) + assert_raises(TypeError, + mm, a, b, axes=[[-2, -1], [-2, -1], [-2, -1]]) + assert_raises(TypeError, + mm, a, b, axes=[(-2, -1), (-2, -1), [-2, -1]]) + assert_raises(TypeError, mm, a, b, axes=[(-2, -1), (-2, -1), None]) + # single integers are AxisErrors if more are required + assert_raises(AxisError, mm, a, b, axes=[-1, -1, -1]) + assert_raises(AxisError, mm, a, b, axes=[(-2, -1), (-2, -1), -1]) + # tuples should not have duplicated values + assert_raises(ValueError, mm, a, b, axes=[(-2, -1), (-2, -1), (-2, -2)]) + # arrays should have enough axes. + z = np.zeros((2, 2)) + assert_raises(ValueError, mm, z, z[0]) + assert_raises(ValueError, mm, z, z, out=z[:, 0]) + assert_raises(ValueError, mm, z[1], z, axes=[0, 1]) + assert_raises(ValueError, mm, z, z, out=z[0], axes=[0, 1]) + # Regular ufuncs should not accept axes. + assert_raises(TypeError, np.add, 1., 1., axes=[0]) + # should be able to deal with bad unrelated kwargs. + assert_raises(TypeError, mm, z, z, axes=[0, 1], parrot=True) + + def test_axis_argument(self): + # vecdot signature: '(n),(n)->()' + a = np.arange(27.).reshape((3, 3, 3)) + b = np.arange(10., 19.).reshape((3, 1, 3)) + c = np.vecdot(a, b) + assert_array_equal(c, (a * b).sum(-1)) + c = np.vecdot(a, b, axis=-1) + assert_array_equal(c, (a * b).sum(-1)) + out = np.zeros_like(c) + d = np.vecdot(a, b, axis=-1, out=out) + assert_(d is out) + assert_array_equal(d, c) + c = np.vecdot(a, b, axis=0) + assert_array_equal(c, (a * b).sum(0)) + # Sanity checks on innerwt and cumsum. + a = np.arange(6).reshape((2, 3)) + b = np.arange(10, 16).reshape((2, 3)) + w = np.arange(20, 26).reshape((2, 3)) + assert_array_equal(umt.innerwt(a, b, w, axis=0), + np.sum(a * b * w, axis=0)) + assert_array_equal(umt.cumsum(a, axis=0), np.cumsum(a, axis=0)) + assert_array_equal(umt.cumsum(a, axis=-1), np.cumsum(a, axis=-1)) + out = np.empty_like(a) + b = umt.cumsum(a, out=out, axis=0) + assert_(out is b) + assert_array_equal(b, np.cumsum(a, axis=0)) + b = umt.cumsum(a, out=out, axis=1) + assert_(out is b) + assert_array_equal(b, np.cumsum(a, axis=-1)) + # Check errors. + # Cannot pass in both axis and axes. + assert_raises(TypeError, np.vecdot, a, b, axis=0, axes=[0, 0]) + # Not an integer. + assert_raises(TypeError, np.vecdot, a, b, axis=[0]) + # more than 1 core dimensions. + mm = umt.matrix_multiply + assert_raises(TypeError, mm, a, b, axis=1) + # Output wrong size in axis. + out = np.empty((1, 2, 3), dtype=a.dtype) + assert_raises(ValueError, umt.cumsum, a, out=out, axis=0) + # Regular ufuncs should not accept axis. + assert_raises(TypeError, np.add, 1., 1., axis=0) + + def test_keepdims_argument(self): + # vecdot signature: '(n),(n)->()' + a = np.arange(27.).reshape((3, 3, 3)) + b = np.arange(10., 19.).reshape((3, 1, 3)) + c = np.vecdot(a, b) + assert_array_equal(c, (a * b).sum(-1)) + c = np.vecdot(a, b, keepdims=False) + assert_array_equal(c, (a * b).sum(-1)) + c = np.vecdot(a, b, keepdims=True) + assert_array_equal(c, (a * b).sum(-1, keepdims=True)) + out = np.zeros_like(c) + d = np.vecdot(a, b, keepdims=True, out=out) + assert_(d is out) + assert_array_equal(d, c) + # Now combined with axis and axes. + c = np.vecdot(a, b, axis=-1, keepdims=False) + assert_array_equal(c, (a * b).sum(-1, keepdims=False)) + c = np.vecdot(a, b, axis=-1, keepdims=True) + assert_array_equal(c, (a * b).sum(-1, keepdims=True)) + c = np.vecdot(a, b, axis=0, keepdims=False) + assert_array_equal(c, (a * b).sum(0, keepdims=False)) + c = np.vecdot(a, b, axis=0, keepdims=True) + assert_array_equal(c, (a * b).sum(0, keepdims=True)) + c = np.vecdot(a, b, axes=[(-1,), (-1,), ()], keepdims=False) + assert_array_equal(c, (a * b).sum(-1)) + c = np.vecdot(a, b, axes=[(-1,), (-1,), (-1,)], keepdims=True) + assert_array_equal(c, (a * b).sum(-1, keepdims=True)) + c = np.vecdot(a, b, axes=[0, 0], keepdims=False) + assert_array_equal(c, (a * b).sum(0)) + c = np.vecdot(a, b, axes=[0, 0, 0], keepdims=True) + assert_array_equal(c, (a * b).sum(0, keepdims=True)) + c = np.vecdot(a, b, axes=[0, 2], keepdims=False) + assert_array_equal(c, (a.transpose(1, 2, 0) * b).sum(-1)) + c = np.vecdot(a, b, axes=[0, 2], keepdims=True) + assert_array_equal(c, (a.transpose(1, 2, 0) * b).sum(-1, + keepdims=True)) + c = np.vecdot(a, b, axes=[0, 2, 2], keepdims=True) + assert_array_equal(c, (a.transpose(1, 2, 0) * b).sum(-1, + keepdims=True)) + c = np.vecdot(a, b, axes=[0, 2, 0], keepdims=True) + assert_array_equal(c, (a * b.transpose(2, 0, 1)).sum(0, keepdims=True)) + # Hardly useful, but should work. + c = np.vecdot(a, b, axes=[0, 2, 1], keepdims=True) + assert_array_equal(c, (a.transpose(1, 0, 2) * b.transpose(0, 2, 1)) + .sum(1, keepdims=True)) + # Check with two core dimensions. + a = np.eye(3) * np.arange(4.)[:, np.newaxis, np.newaxis] + expected = uml.det(a) + c = uml.det(a, keepdims=False) + assert_array_equal(c, expected) + c = uml.det(a, keepdims=True) + assert_array_equal(c, expected[:, np.newaxis, np.newaxis]) + a = np.eye(3) * np.arange(4.)[:, np.newaxis, np.newaxis] + expected_s, expected_l = uml.slogdet(a) + cs, cl = uml.slogdet(a, keepdims=False) + assert_array_equal(cs, expected_s) + assert_array_equal(cl, expected_l) + cs, cl = uml.slogdet(a, keepdims=True) + assert_array_equal(cs, expected_s[:, np.newaxis, np.newaxis]) + assert_array_equal(cl, expected_l[:, np.newaxis, np.newaxis]) + # Sanity check on innerwt. + a = np.arange(6).reshape((2, 3)) + b = np.arange(10, 16).reshape((2, 3)) + w = np.arange(20, 26).reshape((2, 3)) + assert_array_equal(umt.innerwt(a, b, w, keepdims=True), + np.sum(a * b * w, axis=-1, keepdims=True)) + assert_array_equal(umt.innerwt(a, b, w, axis=0, keepdims=True), + np.sum(a * b * w, axis=0, keepdims=True)) + # Check errors. + # Not a boolean + assert_raises(TypeError, np.vecdot, a, b, keepdims='true') + # More than 1 core dimension, and core output dimensions. + mm = umt.matrix_multiply + assert_raises(TypeError, mm, a, b, keepdims=True) + assert_raises(TypeError, mm, a, b, keepdims=False) + # Regular ufuncs should not accept keepdims. + assert_raises(TypeError, np.add, 1., 1., keepdims=False) + + def test_innerwt(self): + a = np.arange(6).reshape((2, 3)) + b = np.arange(10, 16).reshape((2, 3)) + w = np.arange(20, 26).reshape((2, 3)) + assert_array_equal(umt.innerwt(a, b, w), np.sum(a * b * w, axis=-1)) + a = np.arange(100, 124).reshape((2, 3, 4)) + b = np.arange(200, 224).reshape((2, 3, 4)) + w = np.arange(300, 324).reshape((2, 3, 4)) + assert_array_equal(umt.innerwt(a, b, w), np.sum(a * b * w, axis=-1)) + + def test_innerwt_empty(self): + """Test generalized ufunc with zero-sized operands""" + a = np.array([], dtype='f8') + b = np.array([], dtype='f8') + w = np.array([], dtype='f8') + assert_array_equal(umt.innerwt(a, b, w), np.sum(a * b * w, axis=-1)) + + def test_cross1d(self): + """Test with fixed-sized signature.""" + a = np.eye(3) + assert_array_equal(umt.cross1d(a, a), np.zeros((3, 3))) + out = np.zeros((3, 3)) + result = umt.cross1d(a[0], a, out) + assert_(result is out) + assert_array_equal(result, np.vstack((np.zeros(3), a[2], -a[1]))) + assert_raises(ValueError, umt.cross1d, np.eye(4), np.eye(4)) + assert_raises(ValueError, umt.cross1d, a, np.arange(4.)) + # Wrong output core dimension. + assert_raises(ValueError, umt.cross1d, a, np.arange(3.), np.zeros((3, 4))) + # Wrong output broadcast dimension (see gh-15139). + assert_raises(ValueError, umt.cross1d, a, np.arange(3.), np.zeros(3)) + + def test_can_ignore_signature(self): + # Comparing the effects of ? in signature: + # matrix_multiply: (m,n),(n,p)->(m,p) # all must be there. + # matmul: (m?,n),(n,p?)->(m?,p?) # allow missing m, p. + mat = np.arange(12).reshape((2, 3, 2)) + single_vec = np.arange(2) + col_vec = single_vec[:, np.newaxis] + col_vec_array = np.arange(8).reshape((2, 2, 2, 1)) + 1 + # matrix @ single column vector with proper dimension + mm_col_vec = umt.matrix_multiply(mat, col_vec) + # matmul does the same thing + matmul_col_vec = umt.matmul(mat, col_vec) + assert_array_equal(matmul_col_vec, mm_col_vec) + # matrix @ vector without dimension making it a column vector. + # matrix multiply fails -> missing core dim. + assert_raises(ValueError, umt.matrix_multiply, mat, single_vec) + # matmul mimicker passes, and returns a vector. + matmul_col = umt.matmul(mat, single_vec) + assert_array_equal(matmul_col, mm_col_vec.squeeze()) + # Now with a column array: same as for column vector, + # broadcasting sensibly. + mm_col_vec = umt.matrix_multiply(mat, col_vec_array) + matmul_col_vec = umt.matmul(mat, col_vec_array) + assert_array_equal(matmul_col_vec, mm_col_vec) + # As above, but for row vector + single_vec = np.arange(3) + row_vec = single_vec[np.newaxis, :] + row_vec_array = np.arange(24).reshape((4, 2, 1, 1, 3)) + 1 + # row vector @ matrix + mm_row_vec = umt.matrix_multiply(row_vec, mat) + matmul_row_vec = umt.matmul(row_vec, mat) + assert_array_equal(matmul_row_vec, mm_row_vec) + # single row vector @ matrix + assert_raises(ValueError, umt.matrix_multiply, single_vec, mat) + matmul_row = umt.matmul(single_vec, mat) + assert_array_equal(matmul_row, mm_row_vec.squeeze()) + # row vector array @ matrix + mm_row_vec = umt.matrix_multiply(row_vec_array, mat) + matmul_row_vec = umt.matmul(row_vec_array, mat) + assert_array_equal(matmul_row_vec, mm_row_vec) + # Now for vector combinations + # row vector @ column vector + col_vec = row_vec.T + col_vec_array = row_vec_array.swapaxes(-2, -1) + mm_row_col_vec = umt.matrix_multiply(row_vec, col_vec) + matmul_row_col_vec = umt.matmul(row_vec, col_vec) + assert_array_equal(matmul_row_col_vec, mm_row_col_vec) + # single row vector @ single col vector + assert_raises(ValueError, umt.matrix_multiply, single_vec, single_vec) + matmul_row_col = umt.matmul(single_vec, single_vec) + assert_array_equal(matmul_row_col, mm_row_col_vec.squeeze()) + # row vector array @ matrix + mm_row_col_array = umt.matrix_multiply(row_vec_array, col_vec_array) + matmul_row_col_array = umt.matmul(row_vec_array, col_vec_array) + assert_array_equal(matmul_row_col_array, mm_row_col_array) + # Finally, check that things are *not* squeezed if one gives an + # output. + out = np.zeros_like(mm_row_col_array) + out = umt.matrix_multiply(row_vec_array, col_vec_array, out=out) + assert_array_equal(out, mm_row_col_array) + out[:] = 0 + out = umt.matmul(row_vec_array, col_vec_array, out=out) + assert_array_equal(out, mm_row_col_array) + # And check one cannot put missing dimensions back. + out = np.zeros_like(mm_row_col_vec) + assert_raises(ValueError, umt.matrix_multiply, single_vec, single_vec, + out) + # But fine for matmul, since it is just a broadcast. + out = umt.matmul(single_vec, single_vec, out) + assert_array_equal(out, mm_row_col_vec.squeeze()) + + def test_matrix_multiply(self): + self.compare_matrix_multiply_results(np.int64) + self.compare_matrix_multiply_results(np.double) + + def test_matrix_multiply_umath_empty(self): + res = umt.matrix_multiply(np.ones((0, 10)), np.ones((10, 0))) + assert_array_equal(res, np.zeros((0, 0))) + res = umt.matrix_multiply(np.ones((10, 0)), np.ones((0, 10))) + assert_array_equal(res, np.zeros((10, 10))) + + def compare_matrix_multiply_results(self, tp): + d1 = np.array(np.random.rand(2, 3, 4), dtype=tp) + d2 = np.array(np.random.rand(2, 3, 4), dtype=tp) + msg = f"matrix multiply on type {d1.dtype.name}" + + def permute_n(n): + if n == 1: + return ([0],) + ret = () + base = permute_n(n - 1) + for perm in base: + for i in range(n): + new = perm + [n - 1] + new[n - 1] = new[i] + new[i] = n - 1 + ret += (new,) + return ret + + def slice_n(n): + if n == 0: + return ((),) + ret = () + base = slice_n(n - 1) + for sl in base: + ret += (sl + (slice(None),),) + ret += (sl + (slice(0, 1),),) + return ret + + def broadcastable(s1, s2): + return s1 == s2 or 1 in {s1, s2} + + permute_3 = permute_n(3) + slice_3 = slice_n(3) + ((slice(None, None, -1),) * 3,) + + ref = True + for p1 in permute_3: + for p2 in permute_3: + for s1 in slice_3: + for s2 in slice_3: + a1 = d1.transpose(p1)[s1] + a2 = d2.transpose(p2)[s2] + ref = ref and a1.base is not None + ref = ref and a2.base is not None + if (a1.shape[-1] == a2.shape[-2] and + broadcastable(a1.shape[0], a2.shape[0])): + assert_array_almost_equal( + umt.matrix_multiply(a1, a2), + np.sum(a2[..., np.newaxis].swapaxes(-3, -1) * + a1[..., np.newaxis, :], axis=-1), + err_msg=msg + f' {str(a1.shape)} {str(a2.shape)}') + + assert_equal(ref, True, err_msg="reference check") + + def test_euclidean_pdist(self): + a = np.arange(12, dtype=float).reshape(4, 3) + out = np.empty((a.shape[0] * (a.shape[0] - 1) // 2,), dtype=a.dtype) + umt.euclidean_pdist(a, out) + b = np.sqrt(np.sum((a[:, None] - a)**2, axis=-1)) + b = b[~np.tri(a.shape[0], dtype=bool)] + assert_almost_equal(out, b) + # An output array is required to determine p with signature (n,d)->(p) + assert_raises(ValueError, umt.euclidean_pdist, a) + + def test_cumsum(self): + a = np.arange(10) + result = umt.cumsum(a) + assert_array_equal(result, a.cumsum()) + + def test_object_logical(self): + a = np.array([3, None, True, False, "test", ""], dtype=object) + assert_equal(np.logical_or(a, None), + np.array([x or None for x in a], dtype=object)) + assert_equal(np.logical_or(a, True), + np.array([x or True for x in a], dtype=object)) + assert_equal(np.logical_or(a, 12), + np.array([x or 12 for x in a], dtype=object)) + assert_equal(np.logical_or(a, "blah"), + np.array([x or "blah" for x in a], dtype=object)) + + assert_equal(np.logical_and(a, None), + np.array([x and None for x in a], dtype=object)) + assert_equal(np.logical_and(a, True), + np.array([x and True for x in a], dtype=object)) + assert_equal(np.logical_and(a, 12), + np.array([x and 12 for x in a], dtype=object)) + assert_equal(np.logical_and(a, "blah"), + np.array([x and "blah" for x in a], dtype=object)) + + assert_equal(np.logical_not(a), + np.array([not x for x in a], dtype=object)) + + assert_equal(np.logical_or.reduce(a), 3) + assert_equal(np.logical_and.reduce(a), None) + + def test_object_comparison(self): + class HasComparisons: + def __eq__(self, other): + return '==' + + arr0d = np.array(HasComparisons()) + assert_equal(arr0d == arr0d, True) + assert_equal(np.equal(arr0d, arr0d), True) # normal behavior is a cast + + arr1d = np.array([HasComparisons()]) + assert_equal(arr1d == arr1d, np.array([True])) + # normal behavior is a cast + assert_equal(np.equal(arr1d, arr1d), np.array([True])) + assert_equal(np.equal(arr1d, arr1d, dtype=object), np.array(['=='])) + + def test_object_array_reduction(self): + # Reductions on object arrays + a = np.array(['a', 'b', 'c'], dtype=object) + assert_equal(np.sum(a), 'abc') + assert_equal(np.max(a), 'c') + assert_equal(np.min(a), 'a') + a = np.array([True, False, True], dtype=object) + assert_equal(np.sum(a), 2) + assert_equal(np.prod(a), 0) + assert_equal(np.any(a), True) + assert_equal(np.all(a), False) + assert_equal(np.max(a), True) + assert_equal(np.min(a), False) + assert_equal(np.array([[1]], dtype=object).sum(), 1) + assert_equal(np.array([[[1, 2]]], dtype=object).sum((0, 1)), [1, 2]) + assert_equal(np.array([1], dtype=object).sum(initial=1), 2) + assert_equal(np.array([[1], [2, 3]], dtype=object) + .sum(initial=[0], where=[False, True]), [0, 2, 3]) + + def test_object_array_accumulate_inplace(self): + # Checks that in-place accumulates work, see also gh-7402 + arr = np.ones(4, dtype=object) + arr[:] = [[1] for i in range(4)] + # Twice reproduced also for tuples: + np.add.accumulate(arr, out=arr) + np.add.accumulate(arr, out=arr) + assert_array_equal(arr, + np.array([[1] * i for i in [1, 3, 6, 10]], dtype=object), + ) + + # And the same if the axis argument is used + arr = np.ones((2, 4), dtype=object) + arr[0, :] = [[2] for i in range(4)] + np.add.accumulate(arr, out=arr, axis=-1) + np.add.accumulate(arr, out=arr, axis=-1) + assert_array_equal(arr[0, :], + np.array([[2] * i for i in [1, 3, 6, 10]], dtype=object), + ) + + def test_object_array_accumulate_failure(self): + # Typical accumulation on object works as expected: + res = np.add.accumulate(np.array([1, 0, 2], dtype=object)) + assert_array_equal(res, np.array([1, 1, 3], dtype=object)) + # But errors are propagated from the inner-loop if they occur: + with pytest.raises(TypeError): + np.add.accumulate([1, None, 2]) + + def test_object_array_reduceat_inplace(self): + # Checks that in-place reduceats work, see also gh-7465 + arr = np.empty(4, dtype=object) + arr[:] = [[1] for i in range(4)] + out = np.empty(4, dtype=object) + out[:] = [[1] for i in range(4)] + np.add.reduceat(arr, np.arange(4), out=arr) + np.add.reduceat(arr, np.arange(4), out=arr) + assert_array_equal(arr, out) + + # And the same if the axis argument is used + arr = np.ones((2, 4), dtype=object) + arr[0, :] = [[2] for i in range(4)] + out = np.ones((2, 4), dtype=object) + out[0, :] = [[2] for i in range(4)] + np.add.reduceat(arr, np.arange(4), out=arr, axis=-1) + np.add.reduceat(arr, np.arange(4), out=arr, axis=-1) + assert_array_equal(arr, out) + + def test_object_array_reduceat_failure(self): + # Reduceat works as expected when no invalid operation occurs (None is + # not involved in an operation here) + res = np.add.reduceat(np.array([1, None, 2], dtype=object), [1, 2]) + assert_array_equal(res, np.array([None, 2], dtype=object)) + # But errors when None would be involved in an operation: + with pytest.raises(TypeError): + np.add.reduceat([1, None, 2], [0, 2]) + + def test_zerosize_reduction(self): + # Test with default dtype and object dtype + for a in [[], np.array([], dtype=object)]: + assert_equal(np.sum(a), 0) + assert_equal(np.prod(a), 1) + assert_equal(np.any(a), False) + assert_equal(np.all(a), True) + assert_raises(ValueError, np.max, a) + assert_raises(ValueError, np.min, a) + + def test_axis_out_of_bounds(self): + a = np.array([False, False]) + assert_raises(AxisError, a.all, axis=1) + a = np.array([False, False]) + assert_raises(AxisError, a.all, axis=-2) + + a = np.array([False, False]) + assert_raises(AxisError, a.any, axis=1) + a = np.array([False, False]) + assert_raises(AxisError, a.any, axis=-2) + + def test_scalar_reduction(self): + # The functions 'sum', 'prod', etc allow specifying axis=0 + # even for scalars + assert_equal(np.sum(3, axis=0), 3) + assert_equal(np.prod(3.5, axis=0), 3.5) + assert_equal(np.any(True, axis=0), True) + assert_equal(np.all(False, axis=0), False) + assert_equal(np.max(3, axis=0), 3) + assert_equal(np.min(2.5, axis=0), 2.5) + + # Check scalar behaviour for ufuncs without an identity + assert_equal(np.power.reduce(3), 3) + + # Make sure that scalars are coming out from this operation + assert_(type(np.prod(np.float32(2.5), axis=0)) is np.float32) + assert_(type(np.sum(np.float32(2.5), axis=0)) is np.float32) + assert_(type(np.max(np.float32(2.5), axis=0)) is np.float32) + assert_(type(np.min(np.float32(2.5), axis=0)) is np.float32) + + # check if scalars/0-d arrays get cast + assert_(type(np.any(0, axis=0)) is np.bool) + + # assert that 0-d arrays get wrapped + class MyArray(np.ndarray): + pass + a = np.array(1).view(MyArray) + assert_(type(np.any(a)) is MyArray) + + def test_casting_out_param(self): + # Test that it's possible to do casts on output + a = np.ones((200, 100), np.int64) + b = np.ones((200, 100), np.int64) + c = np.ones((200, 100), np.float64) + np.add(a, b, out=c) + assert_equal(c, 2) + + a = np.zeros(65536) + b = np.zeros(65536, dtype=np.float32) + np.subtract(a, 0, out=b) + assert_equal(b, 0) + + def test_where_param(self): + # Test that the where= ufunc parameter works with regular arrays + a = np.arange(7) + b = np.ones(7) + c = np.zeros(7) + np.add(a, b, out=c, where=(a % 2 == 1)) + assert_equal(c, [0, 2, 0, 4, 0, 6, 0]) + + a = np.arange(4).reshape(2, 2) + 2 + np.power(a, [2, 3], out=a, where=[[0, 1], [1, 0]]) + assert_equal(a, [[2, 27], [16, 5]]) + # Broadcasting the where= parameter + np.subtract(a, 2, out=a, where=[True, False]) + assert_equal(a, [[0, 27], [14, 5]]) + + def test_where_param_buffer_output(self): + # With casting on output + a = np.ones(10, np.int64) + b = np.ones(10, np.int64) + c = 1.5 * np.ones(10, np.float64) + np.add(a, b, out=c, where=[1, 0, 0, 1, 0, 0, 1, 1, 1, 0]) + assert_equal(c, [2, 1.5, 1.5, 2, 1.5, 1.5, 2, 2, 2, 1.5]) + + def test_where_param_alloc(self): + # With casting and allocated output + a = np.array([1], dtype=np.int64) + m = np.array([True], dtype=bool) + assert_equal(np.sqrt(a, where=m, out=None), [1]) + + # No casting and allocated output + a = np.array([1], dtype=np.float64) + m = np.array([True], dtype=bool) + assert_equal(np.sqrt(a, where=m, out=None), [1]) + + def test_where_with_broadcasting(self): + # See gh-17198 + a = np.random.random((5000, 4)) + b = np.random.random((5000, 1)) + + where = a > 0.3 + out = np.full_like(a, 0) + np.less(a, b, where=where, out=out) + b_where = np.broadcast_to(b, a.shape)[where] + assert_array_equal((a[where] < b_where), out[where].astype(bool)) + assert not out[~where].any() # outside mask, out remains all 0 + + def test_where_warns(self): + a = np.arange(7) + mask = a % 2 == 0 + with pytest.warns(UserWarning, match="'where' used without 'out'"): + result1 = np.add(a, a, where=mask) + # Does not warn + result2 = np.add(a, a, where=mask, out=None) + # Sanity check + assert np.all(result1[::2] == [0, 4, 8, 12]) + assert np.all(result2[::2] == [0, 4, 8, 12]) + # Also no warning for where=True + result3 = np.add(a, a, where=True) + # Sanity check + assert_array_equal(result3, a + a) + + @staticmethod + def identityless_reduce_arrs(): + yield np.empty((2, 3, 4), order='C') + yield np.empty((2, 3, 4), order='F') + # Mixed order (reduce order differs outer) + yield np.empty((2, 4, 3), order='C').swapaxes(1, 2) + # Reversed order + yield np.empty((2, 3, 4), order='C')[::-1, ::-1, ::-1] + # Not contiguous + yield np.empty((3, 5, 4), order='C').swapaxes(1, 2)[1:, 1:, 1:] + # Not contiguous and not aligned + a = np.empty((3 * 4 * 5 * 8 + 1,), dtype='i1') + a = a[1:].view(dtype='f8') + a.shape = (3, 4, 5) + a = a[1:, 1:, 1:] + yield a + + @pytest.mark.parametrize("arrs", identityless_reduce_arrs()) + @pytest.mark.parametrize("pos", [(1, 0, 0), (0, 1, 0), (0, 0, 1)]) + def test_identityless_reduction(self, arrs, pos): + # np.minimum.reduce is an identityless reduction + a = arrs.copy() + a[...] = 1 + a[pos] = 0 + + for axis in [None, (0, 1), (0, 2), (1, 2), 0, 1, 2, ()]: + if axis is None: + axes = np.array([], dtype=np.intp) + else: + axes = np.delete(np.arange(a.ndim), axis) + + expected_pos = tuple(np.array(pos)[axes]) + expected = np.ones(np.array(a.shape)[axes]) + expected[expected_pos] = 0 + + res = np.minimum.reduce(a, axis=axis) + assert_equal(res, expected, strict=True) + + res = np.full_like(res, np.nan) + np.minimum.reduce(a, axis=axis, out=res) + assert_equal(res, expected, strict=True) + + @requires_memory(6 * 1024**3) + @pytest.mark.skipif(sys.maxsize < 2**32, + reason="test array too large for 32bit platform") + @pytest.mark.thread_unsafe(reason="crashes with low memory") + def test_identityless_reduction_huge_array(self): + # Regression test for gh-20921 (copying identity incorrectly failed) + arr = np.zeros((2, 2**31), 'uint8') + arr[:, 0] = [1, 3] + arr[:, -1] = [4, 1] + res = np.maximum.reduce(arr, axis=0) + del arr + assert res[0] == 3 + assert res[-1] == 4 + + def test_reduce_identity_depends_on_loop(self): + """ + The type of the result should always depend on the selected loop, not + necessarily the output (only relevant for object arrays). + """ + # For an object loop, the default value 0 with type int is used: + assert type(np.add.reduce([], dtype=object)) is int + out = np.array(None, dtype=object) + # When the loop is float64 but `out` is object this does not happen, + # the result is float64 cast to object (which gives Python `float`). + np.add.reduce([], out=out, dtype=np.float64) + assert type(out[()]) is float + + def test_initial_reduction(self): + # np.minimum.reduce is an identityless reduction + + # For cases like np.maximum(np.abs(...), initial=0) + # More generally, a supremum over non-negative numbers. + assert_equal(np.maximum.reduce([], initial=0), 0) + + # For cases like reduction of an empty array over the reals. + assert_equal(np.minimum.reduce([], initial=np.inf), np.inf) + assert_equal(np.maximum.reduce([], initial=-np.inf), -np.inf) + + # Random tests + assert_equal(np.minimum.reduce([5], initial=4), 4) + assert_equal(np.maximum.reduce([4], initial=5), 5) + assert_equal(np.maximum.reduce([5], initial=4), 5) + assert_equal(np.minimum.reduce([4], initial=5), 4) + + # Check initial=None raises ValueError for both types of ufunc reductions + assert_raises(ValueError, np.minimum.reduce, [], initial=None) + assert_raises(ValueError, np.add.reduce, [], initial=None) + # Also in the somewhat special object case: + with pytest.raises(ValueError): + np.add.reduce([], initial=None, dtype=object) + + # Check that np._NoValue gives default behavior. + assert_equal(np.add.reduce([], initial=np._NoValue), 0) + + # Check that initial kwarg behaves as intended for dtype=object + a = np.array([10], dtype=object) + res = np.add.reduce(a, initial=5) + assert_equal(res, 15) + + def test_empty_reduction_and_identity(self): + arr = np.zeros((0, 5)) + # OK, since the reduction itself is *not* empty, the result is + assert np.true_divide.reduce(arr, axis=1).shape == (0,) + # Not OK, the reduction itself is empty and we have no identity + with pytest.raises(ValueError): + np.true_divide.reduce(arr, axis=0) + + # Test that an empty reduction fails also if the result is empty + arr = np.zeros((0, 0, 5)) + with pytest.raises(ValueError): + np.true_divide.reduce(arr, axis=1) + + # Division reduction makes sense with `initial=1` (empty or not): + res = np.true_divide.reduce(arr, axis=1, initial=1) + assert_array_equal(res, np.ones((0, 5))) + + @pytest.mark.parametrize('axis', (0, 1, None)) + @pytest.mark.parametrize('where', (np.array([False, True, True]), + np.array([[True], [False], [True]]), + np.array([[True, False, False], + [False, True, False], + [False, True, True]]))) + def test_reduction_with_where(self, axis, where): + a = np.arange(9.).reshape(3, 3) + a_copy = a.copy() + a_check = np.zeros_like(a) + np.positive(a, out=a_check, where=where) + + res = np.add.reduce(a, axis=axis, where=where) + check = a_check.sum(axis) + assert_equal(res, check) + # Check we do not overwrite elements of a internally. + assert_array_equal(a, a_copy) + + @pytest.mark.parametrize(('axis', 'where'), + ((0, np.array([True, False, True])), + (1, [True, True, False]), + (None, True))) + @pytest.mark.parametrize('initial', (-np.inf, 5.)) + def test_reduction_with_where_and_initial(self, axis, where, initial): + a = np.arange(9.).reshape(3, 3) + a_copy = a.copy() + a_check = np.full(a.shape, -np.inf) + np.positive(a, out=a_check, where=where) + + res = np.maximum.reduce(a, axis=axis, where=where, initial=initial) + check = a_check.max(axis, initial=initial) + assert_equal(res, check) + + def test_reduction_where_initial_needed(self): + a = np.arange(9.).reshape(3, 3) + m = [False, True, False] + assert_raises(ValueError, np.maximum.reduce, a, where=m) + + def test_identityless_reduction_nonreorderable(self): + a = np.array([[8.0, 2.0, 2.0], [1.0, 0.5, 0.25]]) + + res = np.divide.reduce(a, axis=0) + assert_equal(res, [8.0, 4.0, 8.0]) + + res = np.divide.reduce(a, axis=1) + assert_equal(res, [2.0, 8.0]) + + res = np.divide.reduce(a, axis=()) + assert_equal(res, a) + + assert_raises(ValueError, np.divide.reduce, a, axis=(0, 1)) + + def test_reduce_zero_axis(self): + # If we have an n x m array and do a reduction with axis=1, then we are + # doing n reductions, and each reduction takes an m-element array. For + # a reduction operation without an identity, then: + # n > 0, m > 0: fine + # n = 0, m > 0: fine, doing 0 reductions of m-element arrays + # n > 0, m = 0: can't reduce a 0-element array, ValueError + # n = 0, m = 0: can't reduce a 0-element array, ValueError (for + # consistency with the above case) + # This test doesn't actually look at return values, it just checks to + # make sure that error we get an error in exactly those cases where we + # expect one, and assumes the calculations themselves are done + # correctly. + + def ok(f, *args, **kwargs): + f(*args, **kwargs) + + def err(f, *args, **kwargs): + assert_raises(ValueError, f, *args, **kwargs) + + def t(expect, func, n, m): + expect(func, np.zeros((n, m)), axis=1) + expect(func, np.zeros((m, n)), axis=0) + expect(func, np.zeros((n // 2, n // 2, m)), axis=2) + expect(func, np.zeros((n // 2, m, n // 2)), axis=1) + expect(func, np.zeros((n, m // 2, m // 2)), axis=(1, 2)) + expect(func, np.zeros((m // 2, n, m // 2)), axis=(0, 2)) + expect(func, np.zeros((m // 3, m // 3, m // 3, + n // 2, n // 2)), + axis=(0, 1, 2)) + # Check what happens if the inner (resp. outer) dimensions are a + # mix of zero and non-zero: + expect(func, np.zeros((10, m, n)), axis=(0, 1)) + expect(func, np.zeros((10, n, m)), axis=(0, 2)) + expect(func, np.zeros((m, 10, n)), axis=0) + expect(func, np.zeros((10, m, n)), axis=1) + expect(func, np.zeros((10, n, m)), axis=2) + + # np.maximum is just an arbitrary ufunc with no reduction identity + assert_equal(np.maximum.identity, None) + t(ok, np.maximum.reduce, 30, 30) + t(ok, np.maximum.reduce, 0, 30) + t(err, np.maximum.reduce, 30, 0) + t(err, np.maximum.reduce, 0, 0) + err(np.maximum.reduce, []) + np.maximum.reduce(np.zeros((0, 0)), axis=()) + + # all of the combinations are fine for a reduction that has an + # identity + t(ok, np.add.reduce, 30, 30) + t(ok, np.add.reduce, 0, 30) + t(ok, np.add.reduce, 30, 0) + t(ok, np.add.reduce, 0, 0) + np.add.reduce([]) + np.add.reduce(np.zeros((0, 0)), axis=()) + + # OTOH, accumulate always makes sense for any combination of n and m, + # because it maps an m-element array to an m-element array. These + # tests are simpler because accumulate doesn't accept multiple axes. + for uf in (np.maximum, np.add): + uf.accumulate(np.zeros((30, 0)), axis=0) + uf.accumulate(np.zeros((0, 30)), axis=0) + uf.accumulate(np.zeros((30, 30)), axis=0) + uf.accumulate(np.zeros((0, 0)), axis=0) + + def test_safe_casting(self): + # In old versions of numpy, in-place operations used the 'unsafe' + # casting rules. In versions >= 1.10, 'same_kind' is the + # default and an exception is raised instead of a warning. + # when 'same_kind' is not satisfied. + a = np.array([1, 2, 3], dtype=int) + # Non-in-place addition is fine + assert_array_equal(assert_no_warnings(np.add, a, 1.1), + [2.1, 3.1, 4.1]) + assert_raises(TypeError, np.add, a, 1.1, out=a) + + def add_inplace(a, b): + a += b + + assert_raises(TypeError, add_inplace, a, 1.1) + # Make sure that explicitly overriding the exception is allowed: + assert_no_warnings(np.add, a, 1.1, out=a, casting="unsafe") + assert_array_equal(a, [2, 3, 4]) + + def test_ufunc_custom_out(self): + # Test ufunc with built in input types and custom output type + + a = np.array([0, 1, 2], dtype='i8') + b = np.array([0, 1, 2], dtype='i8') + c = np.empty(3, dtype=_rational_tests.rational) + + # Output must be specified so numpy knows what + # ufunc signature to look for + result = _rational_tests.test_add(a, b, c) + target = np.array([0, 2, 4], dtype=_rational_tests.rational) + assert_equal(result, target) + + # The new resolution means that we can (usually) find custom loops + # as long as they match exactly: + result = _rational_tests.test_add(a, b) + assert_equal(result, target) + + # This works even more generally, so long the default common-dtype + # promoter works out: + result = _rational_tests.test_add(a, b.astype(np.uint16), out=c) + assert_equal(result, target) + + # This scalar path used to go into legacy promotion, but doesn't now: + result = _rational_tests.test_add(a, np.uint16(2)) + target = np.array([2, 3, 4], dtype=_rational_tests.rational) + assert_equal(result, target) + + def test_operand_flags(self): + a = np.arange(16, dtype=int).reshape(4, 4) + b = np.arange(9, dtype=int).reshape(3, 3) + opflag_tests.inplace_add(a[:-1, :-1], b) + assert_equal(a, np.array([[0, 2, 4, 3], [7, 9, 11, 7], + [14, 16, 18, 11], [12, 13, 14, 15]])) + + a = np.array(0) + opflag_tests.inplace_add(a, 3) + assert_equal(a, 3) + opflag_tests.inplace_add(a, [3, 4]) + assert_equal(a, 10) + + def test_struct_ufunc(self): + import numpy._core._struct_ufunc_tests as struct_ufunc + + a = np.array([(1, 2, 3)], dtype='u8,u8,u8') + b = np.array([(1, 2, 3)], dtype='u8,u8,u8') + + result = struct_ufunc.add_triplet(a, b) + assert_equal(result, np.array([(2, 4, 6)], dtype='u8,u8,u8')) + assert_raises(RuntimeError, struct_ufunc.register_fail) + + def test_custom_ufunc(self): + a = np.array( + [_rational_tests.rational(1, 2), + _rational_tests.rational(1, 3), + _rational_tests.rational(1, 4)], + dtype=_rational_tests.rational) + b = np.array( + [_rational_tests.rational(1, 2), + _rational_tests.rational(1, 3), + _rational_tests.rational(1, 4)], + dtype=_rational_tests.rational) + + result = _rational_tests.test_add_rationals(a, b) + expected = np.array( + [_rational_tests.rational(1), + _rational_tests.rational(2, 3), + _rational_tests.rational(1, 2)], + dtype=_rational_tests.rational) + assert_equal(result, expected) + + def test_custom_ufunc_forced_sig(self): + # gh-9351 - looking for a non-first userloop would previously hang + with assert_raises(TypeError): + np.multiply(_rational_tests.rational(1), 1, + signature=(_rational_tests.rational, int, None)) + + def test_custom_array_like(self): + + class MyThing: + __array_priority__ = 1000 + + rmul_count = 0 + getitem_count = 0 + + def __init__(self, shape): + self.shape = shape + + def __len__(self): + return self.shape[0] + + def __getitem__(self, i): + MyThing.getitem_count += 1 + if not isinstance(i, tuple): + i = (i,) + if len(i) > self.ndim: + raise IndexError("boo") + + return MyThing(self.shape[len(i):]) + + def __rmul__(self, other): + MyThing.rmul_count += 1 + return self + + np.float64(5) * MyThing((3, 3)) + assert_(MyThing.rmul_count == 1, MyThing.rmul_count) + assert_(MyThing.getitem_count <= 2, MyThing.getitem_count) + + def test_array_wrap_array_priority(self): + class ArrayPriorityBase(np.ndarray): + @classmethod + def __array_wrap__(cls, array, context=None, return_scalar=False): + return cls + + class ArrayPriorityMinus0(ArrayPriorityBase): + __array_priority__ = 0 + + class ArrayPriorityMinus1000(ArrayPriorityBase): + __array_priority__ = -1000 + + class ArrayPriorityMinus1000b(ArrayPriorityBase): + __array_priority__ = -1000 + + class ArrayPriorityMinus2000(ArrayPriorityBase): + __array_priority__ = -2000 + + x = np.ones(2).view(ArrayPriorityMinus1000) + xb = np.ones(2).view(ArrayPriorityMinus1000b) + y = np.ones(2).view(ArrayPriorityMinus2000) + + assert np.add(x, y) is ArrayPriorityMinus1000 + assert np.add(y, x) is ArrayPriorityMinus1000 + assert np.add(x, xb) is ArrayPriorityMinus1000 + assert np.add(xb, x) is ArrayPriorityMinus1000b + y_minus0 = np.zeros(2).view(ArrayPriorityMinus0) + assert np.add(np.zeros(2), y_minus0) is ArrayPriorityMinus0 + assert type(np.add(xb, x, np.zeros(2))) is np.ndarray + + @pytest.mark.parametrize("a", ( + np.arange(10, dtype=int), + np.arange(10, dtype=_rational_tests.rational), + )) + def test_ufunc_at_basic(self, a): + + aa = a.copy() + np.add.at(aa, [2, 5, 2], 1) + assert_equal(aa, [0, 1, 4, 3, 4, 6, 6, 7, 8, 9]) + + with pytest.raises(ValueError): + # missing second operand + np.add.at(aa, [2, 5, 3]) + + aa = a.copy() + np.negative.at(aa, [2, 5, 3]) + assert_equal(aa, [0, 1, -2, -3, 4, -5, 6, 7, 8, 9]) + + aa = a.copy() + b = np.array([100, 100, 100]) + np.add.at(aa, [2, 5, 2], b) + assert_equal(aa, [0, 1, 202, 3, 4, 105, 6, 7, 8, 9]) + + with pytest.raises(ValueError): + # extraneous second operand + np.negative.at(a, [2, 5, 3], [1, 2, 3]) + + with pytest.raises(ValueError): + # second operand cannot be converted to an array + np.add.at(a, [2, 5, 3], [[1, 2], 1]) + + # ufuncs with indexed loops for performance in ufunc.at + indexed_ufuncs = [np.add, np.subtract, np.multiply, np.floor_divide, + np.maximum, np.minimum, np.fmax, np.fmin] + + @pytest.mark.parametrize( + "typecode", np.typecodes['AllInteger'] + np.typecodes['Float']) + @pytest.mark.parametrize("ufunc", indexed_ufuncs) + def test_ufunc_at_inner_loops(self, typecode, ufunc): + if ufunc is np.divide and typecode in np.typecodes['AllInteger']: + # Avoid divide-by-zero and inf for integer divide + a = np.ones(100, dtype=typecode) + indx = np.random.randint(100, size=30, dtype=np.intp) + vals = np.arange(1, 31, dtype=typecode) + else: + a = np.ones(1000, dtype=typecode) + indx = np.random.randint(1000, size=3000, dtype=np.intp) + vals = np.arange(3000, dtype=typecode) + atag = a.copy() + # Do the calculation twice and compare the answers + with warnings.catch_warnings(record=True) as w_at: + warnings.simplefilter('always') + ufunc.at(a, indx, vals) + with warnings.catch_warnings(record=True) as w_loop: + warnings.simplefilter('always') + for i, v in zip(indx, vals): + # Make sure all the work happens inside the ufunc + # in order to duplicate error/warning handling + ufunc(atag[i], v, out=atag[i:i + 1], casting="unsafe") + assert_equal(atag, a) + # If w_loop warned, make sure w_at warned as well + if len(w_loop) > 0: + # + assert len(w_at) > 0 + assert w_at[0].category == w_loop[0].category + assert str(w_at[0].message)[:10] == str(w_loop[0].message)[:10] + + @pytest.mark.parametrize("typecode", np.typecodes['Complex']) + @pytest.mark.parametrize("ufunc", [np.add, np.subtract, np.multiply]) + def test_ufunc_at_inner_loops_complex(self, typecode, ufunc): + a = np.ones(10, dtype=typecode) + indx = np.concatenate([np.ones(6, dtype=np.intp), + np.full(18, 4, dtype=np.intp)]) + value = a.dtype.type(1j) + ufunc.at(a, indx, value) + expected = np.ones_like(a) + if ufunc is np.multiply: + expected[1] = expected[4] = -1 + else: + expected[1] += 6 * (value if ufunc is np.add else -value) + expected[4] += 18 * (value if ufunc is np.add else -value) + + assert_array_equal(a, expected) + + def test_ufunc_at_ellipsis(self): + # Make sure the indexed loop check does not choke on iters + # with subspaces + arr = np.zeros(5) + np.add.at(arr, slice(None), np.ones(5)) + assert_array_equal(arr, np.ones(5)) + + def test_ufunc_at_negative(self): + arr = np.ones(5, dtype=np.int32) + indx = np.arange(5) + umt.indexed_negative.at(arr, indx) + # If it is [-1, -1, -1, -100, 0] then the regular strided loop was used + assert np.all(arr == [-1, -1, -1, -200, -1]) + + def test_ufunc_at_large(self): + # issue gh-23457 + indices = np.zeros(8195, dtype=np.int16) + b = np.zeros(8195, dtype=float) + b[0] = 10 + b[1] = 5 + b[8192:] = 100 + a = np.zeros(1, dtype=float) + np.add.at(a, indices, b) + assert a[0] == b.sum() + + def test_cast_index_fastpath(self): + arr = np.zeros(10) + values = np.ones(100000) + # index must be cast, which may be buffered in chunks: + index = np.zeros(len(values), dtype=np.uint8) + np.add.at(arr, index, values) + assert arr[0] == len(values) + + @pytest.mark.parametrize("value", [ + np.ones(1), np.ones(()), np.float64(1.), 1.]) + def test_ufunc_at_scalar_value_fastpath(self, value): + arr = np.zeros(1000) + # index must be cast, which may be buffered in chunks: + index = np.repeat(np.arange(1000), 2) + np.add.at(arr, index, value) + assert_array_equal(arr, np.full_like(arr, 2 * value)) + + def test_ufunc_at_multiD(self): + a = np.arange(9).reshape(3, 3) + b = np.array([[100, 100, 100], [200, 200, 200], [300, 300, 300]]) + np.add.at(a, (slice(None), [1, 2, 1]), b) + assert_equal(a, [[0, 201, 102], [3, 404, 205], [6, 607, 308]]) + + a = np.arange(27).reshape(3, 3, 3) + b = np.array([100, 200, 300]) + np.add.at(a, (slice(None), slice(None), [1, 2, 1]), b) + assert_equal(a, + [[[0, 401, 202], + [3, 404, 205], + [6, 407, 208]], + + [[9, 410, 211], + [12, 413, 214], + [15, 416, 217]], + + [[18, 419, 220], + [21, 422, 223], + [24, 425, 226]]]) + + a = np.arange(9).reshape(3, 3) + b = np.array([[100, 100, 100], [200, 200, 200], [300, 300, 300]]) + np.add.at(a, ([1, 2, 1], slice(None)), b) + assert_equal(a, [[0, 1, 2], [403, 404, 405], [206, 207, 208]]) + + a = np.arange(27).reshape(3, 3, 3) + b = np.array([100, 200, 300]) + np.add.at(a, (slice(None), [1, 2, 1], slice(None)), b) + assert_equal(a, + [[[0, 1, 2], + [203, 404, 605], + [106, 207, 308]], + + [[9, 10, 11], + [212, 413, 614], + [115, 216, 317]], + + [[18, 19, 20], + [221, 422, 623], + [124, 225, 326]]]) + + a = np.arange(9).reshape(3, 3) + b = np.array([100, 200, 300]) + np.add.at(a, (0, [1, 2, 1]), b) + assert_equal(a, [[0, 401, 202], [3, 4, 5], [6, 7, 8]]) + + a = np.arange(27).reshape(3, 3, 3) + b = np.array([100, 200, 300]) + np.add.at(a, ([1, 2, 1], 0, slice(None)), b) + assert_equal(a, + [[[0, 1, 2], + [3, 4, 5], + [6, 7, 8]], + + [[209, 410, 611], + [12, 13, 14], + [15, 16, 17]], + + [[118, 219, 320], + [21, 22, 23], + [24, 25, 26]]]) + + a = np.arange(27).reshape(3, 3, 3) + b = np.array([100, 200, 300]) + np.add.at(a, (slice(None), slice(None), slice(None)), b) + assert_equal(a, + [[[100, 201, 302], + [103, 204, 305], + [106, 207, 308]], + + [[109, 210, 311], + [112, 213, 314], + [115, 216, 317]], + + [[118, 219, 320], + [121, 222, 323], + [124, 225, 326]]]) + + def test_ufunc_at_0D(self): + a = np.array(0) + np.add.at(a, (), 1) + assert_equal(a, 1) + + assert_raises(IndexError, np.add.at, a, 0, 1) + assert_raises(IndexError, np.add.at, a, [], 1) + + def test_ufunc_at_dtypes(self): + # Test mixed dtypes + a = np.arange(10) + np.power.at(a, [1, 2, 3, 2], 3.5) + assert_equal(a, np.array([0, 1, 4414, 46, 4, 5, 6, 7, 8, 9])) + + def test_ufunc_at_boolean(self): + # Test boolean indexing and boolean ufuncs + a = np.arange(10) + index = a % 2 == 0 + np.equal.at(a, index, [0, 2, 4, 6, 8]) + assert_equal(a, [1, 1, 1, 3, 1, 5, 1, 7, 1, 9]) + + # Test unary operator + a = np.arange(10, dtype='u4') + np.invert.at(a, [2, 5, 2]) + assert_equal(a, [0, 1, 2, 3, 4, 5 ^ 0xffffffff, 6, 7, 8, 9]) + + def test_ufunc_at_advanced(self): + # Test empty subspace + orig = np.arange(4) + a = orig[:, None][:, 0:0] + np.add.at(a, [0, 1], 3) + assert_array_equal(orig, np.arange(4)) + + # Test with swapped byte order + index = np.array([1, 2, 1], np.dtype('i').newbyteorder()) + values = np.array([1, 2, 3, 4], np.dtype('f').newbyteorder()) + np.add.at(values, index, 3) + assert_array_equal(values, [1, 8, 6, 4]) + + # Test exception thrown + values = np.array(['a', 1], dtype=object) + assert_raises(TypeError, np.add.at, values, [0, 1], 1) + assert_array_equal(values, np.array(['a', 1], dtype=object)) + + # Test multiple output ufuncs raise error, gh-5665 + assert_raises(ValueError, np.modf.at, np.arange(10), [1]) + + # Test maximum + a = np.array([1, 2, 3]) + np.maximum.at(a, [0], 0) + assert_equal(a, np.array([1, 2, 3])) + + @pytest.mark.parametrize("dtype", + np.typecodes['AllInteger'] + np.typecodes['Float']) + @pytest.mark.parametrize("ufunc", + [np.add, np.subtract, np.divide, np.minimum, np.maximum]) + def test_at_negative_indexes(self, dtype, ufunc): + a = np.arange(0, 10).astype(dtype) + indxs = np.array([-1, 1, -1, 2]).astype(np.intp) + vals = np.array([1, 5, 2, 10], dtype=a.dtype) + + expected = a.copy() + for i, v in zip(indxs, vals): + expected[i] = ufunc(expected[i], v) + + ufunc.at(a, indxs, vals) + assert_array_equal(a, expected) + assert np.all(indxs == [-1, 1, -1, 2]) + + def test_at_not_none_signature(self): + # Test ufuncs with non-trivial signature raise a TypeError + a = np.ones((2, 2, 2)) + b = np.ones((1, 2, 2)) + assert_raises(TypeError, np.matmul.at, a, [0], b) + + a = np.array([[[1, 2], [3, 4]]]) + assert_raises(TypeError, np.linalg._umath_linalg.det.at, a, [0]) + + def test_at_no_loop_for_op(self): + # str dtype does not have a ufunc loop for np.add + arr = np.ones(10, dtype=str) + with pytest.raises(np._core._exceptions._UFuncNoLoopError): + np.add.at(arr, [0, 1], [0, 1]) + + def test_at_output_casting(self): + arr = np.array([-1]) + np.equal.at(arr, [0], [0]) + assert arr[0] == 0 + + def test_at_broadcast_failure(self): + arr = np.arange(5) + with pytest.raises(ValueError): + np.add.at(arr, [0, 1], [1, 2, 3]) + + def test_reduce_arguments(self): + f = np.add.reduce + d = np.ones((5, 2), dtype=int) + o = np.ones((2,), dtype=d.dtype) + r = o * 5 + assert_equal(f(d), r) + # a, axis=0, dtype=None, out=None, keepdims=False + assert_equal(f(d, axis=0), r) + assert_equal(f(d, 0), r) + assert_equal(f(d, 0, dtype=None), r) + assert_equal(f(d, 0, dtype='i'), r) + assert_equal(f(d, 0, 'i'), r) + assert_equal(f(d, 0, None), r) + assert_equal(f(d, 0, None, out=None), r) + assert_equal(f(d, 0, None, out=o), r) + assert_equal(f(d, 0, None, o), r) + assert_equal(f(d, 0, None, None), r) + assert_equal(f(d, 0, None, None, keepdims=False), r) + assert_equal(f(d, 0, None, None, True), r.reshape((1,) + r.shape)) + assert_equal(f(d, 0, None, None, False, 0), r) + assert_equal(f(d, 0, None, None, False, initial=0), r) + assert_equal(f(d, 0, None, None, False, 0, True), r) + assert_equal(f(d, 0, None, None, False, 0, where=True), r) + # multiple keywords + assert_equal(f(d, axis=0, dtype=None, out=None, keepdims=False), r) + assert_equal(f(d, 0, dtype=None, out=None, keepdims=False), r) + assert_equal(f(d, 0, None, out=None, keepdims=False), r) + assert_equal(f(d, 0, None, out=None, keepdims=False, initial=0, + where=True), r) + + # too little + assert_raises(TypeError, f) + # too much + assert_raises(TypeError, f, d, 0, None, None, False, 0, True, 1) + # invalid axis + assert_raises(TypeError, f, d, "invalid") + assert_raises(TypeError, f, d, axis="invalid") + assert_raises(TypeError, f, d, axis="invalid", dtype=None, + keepdims=True) + # invalid dtype + assert_raises(TypeError, f, d, 0, "invalid") + assert_raises(TypeError, f, d, dtype="invalid") + assert_raises(TypeError, f, d, dtype="invalid", out=None) + # invalid out + assert_raises(TypeError, f, d, 0, None, "invalid") + assert_raises(TypeError, f, d, out="invalid") + assert_raises(TypeError, f, d, out="invalid", dtype=None) + # keepdims boolean, no invalid value + # assert_raises(TypeError, f, d, 0, None, None, "invalid") + # assert_raises(TypeError, f, d, keepdims="invalid", axis=0, dtype=None) + # invalid mix + assert_raises(TypeError, f, d, 0, keepdims="invalid", dtype="invalid", + out=None) + + # invalid keyword + assert_raises(TypeError, f, d, axis=0, dtype=None, invalid=0) + assert_raises(TypeError, f, d, invalid=0) + assert_raises(TypeError, f, d, 0, keepdims=True, invalid="invalid", + out=None) + assert_raises(TypeError, f, d, axis=0, dtype=None, keepdims=True, + out=None, invalid=0) + assert_raises(TypeError, f, d, axis=0, dtype=None, + out=None, invalid=0) + + def test_structured_equal(self): + # https://github.com/numpy/numpy/issues/4855 + + class MyA(np.ndarray): + def __array_ufunc__(self, ufunc, method, *inputs, **kwargs): + return getattr(ufunc, method)(*(input.view(np.ndarray) + for input in inputs), **kwargs) + a = np.arange(12.).reshape(4, 3) + ra = a.view(dtype=('f8,f8,f8')).squeeze() + mra = ra.view(MyA) + + target = np.array([True, False, False, False], dtype=bool) + assert_equal(np.all(target == (mra == ra[0])), True) + + def test_scalar_equal(self): + # Scalar comparisons should always work, without deprecation warnings. + # even when the ufunc fails. + a = np.array(0.) + b = np.array('a') + assert_(a != b) + assert_(b != a) + assert_(not (a == b)) + assert_(not (b == a)) + + def test_NotImplemented_not_returned(self): + # See gh-5964 and gh-2091. Some of these functions are not operator + # related and were fixed for other reasons in the past. + binary_funcs = [ + np.power, np.add, np.subtract, np.multiply, np.divide, + np.true_divide, np.floor_divide, np.bitwise_and, np.bitwise_or, + np.bitwise_xor, np.left_shift, np.right_shift, np.fmax, + np.fmin, np.fmod, np.hypot, np.logaddexp, np.logaddexp2, + np.maximum, np.minimum, np.mod, + np.greater, np.greater_equal, np.less, np.less_equal, + np.equal, np.not_equal] + + a = np.array('1') + b = 1 + c = np.array([1., 2.]) + for f in binary_funcs: + assert_raises(TypeError, f, a, b) + assert_raises(TypeError, f, c, a) + + @pytest.mark.parametrize("ufunc", + [np.logical_and, np.logical_or]) # logical_xor object loop is bad + @pytest.mark.parametrize("signature", + [(None, None, object), (object, None, None), + (None, object, None)]) + def test_logical_ufuncs_object_signatures(self, ufunc, signature): + a = np.array([True, None, False], dtype=object) + res = ufunc(a, a, signature=signature) + assert res.dtype == object + + @pytest.mark.parametrize("ufunc", + [np.logical_and, np.logical_or, np.logical_xor]) + @pytest.mark.parametrize("signature", + [(bool, None, object), (object, None, bool), + (None, object, bool)]) + def test_logical_ufuncs_mixed_object_signatures(self, ufunc, signature): + # Most mixed signatures fail (except those with bool out, e.g. `OO->?`) + a = np.array([True, None, False]) + with pytest.raises(TypeError): + ufunc(a, a, signature=signature) + + @pytest.mark.parametrize("ufunc", + [np.logical_and, np.logical_or, np.logical_xor]) + def test_logical_ufuncs_support_anything(self, ufunc): + # The logical ufuncs support even input that can't be promoted: + a = np.array(b'1', dtype="V3") + c = np.array([1., 2.]) + assert_array_equal(ufunc(a, c), ufunc([True, True], True)) + assert ufunc.reduce(a) == True + # check that the output has no effect: + out = np.zeros(2, dtype=np.int32) + expected = ufunc([True, True], True).astype(out.dtype) + assert_array_equal(ufunc(a, c, out=out), expected) + out = np.zeros((), dtype=np.int32) + assert ufunc.reduce(a, out=out) == True + # Last check, test reduction when out and a match (the complexity here + # is that the "i,i->?" may seem right, but should not match. + a = np.array([3], dtype="i") + out = np.zeros((), dtype=a.dtype) + assert ufunc.reduce(a, out=out) == 1 + + @pytest.mark.parametrize("ufunc", + [np.logical_and, np.logical_or, np.logical_xor]) + @pytest.mark.parametrize("dtype", ["S", "U"]) + @pytest.mark.parametrize("values", [["1", "hi", "0"], ["", ""]]) + def test_logical_ufuncs_supports_string(self, ufunc, dtype, values): + # note that values are either all true or all false + arr = np.array(values, dtype=dtype) + obj_arr = np.array(values, dtype=object) + res = ufunc(arr, arr) + expected = ufunc(obj_arr, obj_arr, dtype=bool) + + assert_array_equal(res, expected) + + res = ufunc.reduce(arr) + expected = ufunc.reduce(obj_arr, dtype=bool) + assert_array_equal(res, expected) + + @pytest.mark.parametrize("ufunc", + [np.logical_and, np.logical_or, np.logical_xor]) + def test_logical_ufuncs_out_cast_check(self, ufunc): + a = np.array('1') + c = np.array([1., 2.]) + out = a.copy() + with pytest.raises(TypeError): + # It would be safe, but not equiv casting: + ufunc(a, c, out=out, casting="equiv") + + def test_reducelike_byteorder_resolution(self): + # See gh-20699, byte-order changes need some extra care in the type + # resolution to make the following succeed: + arr_be = np.arange(10, dtype=">i8") + arr_le = np.arange(10, dtype="i + if 'O' in typ or '?' in typ: + continue + inp, out = typ.split('->') + args = [np.ones((3, 3), t) for t in inp] + with warnings.catch_warnings(record=True): + warnings.filterwarnings("always") + res = ufunc(*args) + if isinstance(res, tuple): + outs = tuple(out) + assert len(res) == len(outs) + for r, t in zip(res, outs): + assert r.dtype == np.dtype(t) + else: + assert res.dtype == np.dtype(out) + +@pytest.mark.parametrize('ufunc', [getattr(np, x) for x in dir(np) + if isinstance(getattr(np, x), np.ufunc)]) +def test_ufunc_noncontiguous(ufunc): + ''' + Check that contiguous and non-contiguous calls to ufuncs + have the same results for values in range(9) + ''' + for typ in ufunc.types: + # types is a list of strings like ii->i + if any(set('O?mM') & set(typ)): + # bool, object, datetime are too irregular for this simple test + continue + inp, out = typ.split('->') + args_c = [np.empty((6, 6), t) for t in inp] + # non contiguous (2, 3 step on the two dimensions) + args_n = [np.empty((12, 18), t)[::2, ::3] for t in inp] + # alignment != itemsize is possible. So create an array with such + # an odd step manually. + args_o = [] + for t in inp: + orig_dt = np.dtype(t) + off_dt = f"S{orig_dt.alignment}" # offset by alignment + dtype = np.dtype([("_", off_dt), ("t", orig_dt)], align=False) + args_o.append(np.empty((6, 6), dtype=dtype)["t"]) + for a in args_c + args_n + args_o: + a.flat = range(1, 37) + + with warnings.catch_warnings(record=True): + warnings.filterwarnings("always") + res_c = ufunc(*args_c) + res_n = ufunc(*args_n) + res_o = ufunc(*args_o) + if len(out) == 1: + res_c = (res_c,) + res_n = (res_n,) + res_o = (res_o,) + for c_ar, n_ar, o_ar in zip(res_c, res_n, res_o): + dt = c_ar.dtype + if np.issubdtype(dt, np.floating): + # for floating point results allow a small fuss in comparisons + # since different algorithms (libm vs. intrinsics) can be used + # for different input strides + res_eps = np.finfo(dt).eps + tol = 3 * res_eps + assert_allclose(res_c, res_n, atol=tol, rtol=tol) + assert_allclose(res_c, res_o, atol=tol, rtol=tol) + else: + assert_equal(c_ar, n_ar) + assert_equal(c_ar, o_ar) + + +@pytest.mark.parametrize('ufunc', [np.sign, np.equal]) +def test_ufunc_warn_with_nan(ufunc): + # issue gh-15127 + # test that calling certain ufuncs with a non-standard `nan` value does not + # emit a warning + # `b` holds a 64 bit signaling nan: the most significant bit of the + # significand is zero. + b = np.array([0x7ff0000000000001], 'i8').view('f8') + assert np.isnan(b) + if ufunc.nin == 1: + ufunc(b) + elif ufunc.nin == 2: + ufunc(b, b.copy()) + else: + raise ValueError('ufunc with more than 2 inputs') + + +@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") +def test_ufunc_out_casterrors(): + # Tests that casting errors are correctly reported and buffers are + # cleared. + # The following array can be added to itself as an object array, but + # the result cannot be cast to an integer output: + value = 123 # relies on python cache (leak-check will still find it) + arr = np.array([value] * int(ncu.BUFSIZE * 1.5) + + ["string"] + + [value] * int(1.5 * ncu.BUFSIZE), dtype=object) + out = np.ones(len(arr), dtype=np.intp) + + count = sys.getrefcount(value) + with pytest.raises(ValueError): + # Output casting failure: + np.add(arr, arr, out=out, casting="unsafe") + + assert count == sys.getrefcount(value) + # output is unchanged after the error, this shows that the iteration + # was aborted (this is not necessarily defined behaviour) + assert out[-1] == 1 + + with pytest.raises(ValueError): + # Input casting failure: + np.add(arr, arr, out=out, dtype=np.intp, casting="unsafe") + + assert count == sys.getrefcount(value) + # output is unchanged after the error, this shows that the iteration + # was aborted (this is not necessarily defined behaviour) + assert out[-1] == 1 + + +@pytest.mark.parametrize("bad_offset", [0, int(ncu.BUFSIZE * 1.5)]) +def test_ufunc_input_casterrors(bad_offset): + value = 123 + arr = np.array([value] * bad_offset + + ["string"] + + [value] * int(1.5 * ncu.BUFSIZE), dtype=object) + with pytest.raises(ValueError): + # Force cast inputs, but the buffered cast of `arr` to intp fails: + np.add(arr, arr, dtype=np.intp, casting="unsafe") + + +@pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") +@pytest.mark.parametrize("bad_offset", [0, int(ncu.BUFSIZE * 1.5)]) +def test_ufunc_input_floatingpoint_error(bad_offset): + value = 123 + arr = np.array([value] * bad_offset + + [np.nan] + + [value] * int(1.5 * ncu.BUFSIZE)) + with np.errstate(invalid="raise"), pytest.raises(FloatingPointError): + # Force cast inputs, but the buffered cast of `arr` to intp fails: + np.add(arr, arr, dtype=np.intp, casting="unsafe") + + +@pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO") +@pytest.mark.xfail(IS_PYPY, reason="PyPy does not modify tp_doc") +@pytest.mark.parametrize( + "methodname", + ["__call__", "accumulate", "at", "outer", "reduce", "reduceat", "resolve_dtypes"], +) +def test_ufunc_method_signatures(methodname: str): + method = getattr(np.ufunc, methodname) + + try: + _ = inspect.signature(method) + except ValueError as e: + pytest.fail(e.args[0]) + + +def test_trivial_loop_invalid_cast(): + # This tests the fast-path "invalid cast", see gh-19904. + with pytest.raises(TypeError, + match="cast ufunc 'add' input 0"): + # the void dtype definitely cannot cast to double: + np.add(np.array(1, "i,i"), 3, signature="dd->d") + + +@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") +@pytest.mark.parametrize("offset", + [0, ncu.BUFSIZE // 2, int(1.5 * ncu.BUFSIZE)]) +def test_reduce_casterrors(offset): + # Test reporting of casting errors in reductions, we test various + # offsets to where the casting error will occur, since these may occur + # at different places during the reduction procedure. For example + # the first item may be special. + value = 123 # relies on python cache (leak-check will still find it) + arr = np.array([value] * offset + + ["string"] + + [value] * int(1.5 * ncu.BUFSIZE), dtype=object) + out = np.array(-1, dtype=np.intp) + + count = sys.getrefcount(value) + with pytest.raises(ValueError, match="invalid literal"): + # This is an unsafe cast, but we currently always allow that. + # Note that the double loop is picked, but the cast fails. + # `initial=None` disables the use of an identity here to test failures + # while copying the first values path (not used when identity exists). + np.add.reduce(arr, dtype=np.intp, out=out, initial=None) + assert count == sys.getrefcount(value) + # If an error occurred during casting, the operation is done at most until + # the error occurs (the result of which would be `value * offset`) and -1 + # if the error happened immediately. + # This does not define behaviour, the output is invalid and thus undefined + assert out[()] < value * offset + + +@pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") +def test_reduction_no_reference_leak(): + # Test that the generic reduction does not leak references. + # gh-29358 + arr = np.array([1, 2, 3], dtype=np.int32) + count = sys.getrefcount(arr) + + np.add.reduce(arr, dtype=np.int32, initial=0) + assert count == sys.getrefcount(arr) + + np.add.accumulate(arr, dtype=np.int32) + assert count == sys.getrefcount(arr) + + np.add.reduceat(arr, [0, 1], dtype=np.int32) + assert count == sys.getrefcount(arr) + + # with `out=` the reference count is not changed + out = np.empty((), dtype=np.int32) + out_count = sys.getrefcount(out) + + np.add.reduce(arr, dtype=np.int32, out=out, initial=0) + assert count == sys.getrefcount(arr) + assert out_count == sys.getrefcount(out) + + out = np.empty(arr.shape, dtype=np.int32) + out_count = sys.getrefcount(out) + + np.add.accumulate(arr, dtype=np.int32, out=out) + assert count == sys.getrefcount(arr) + assert out_count == sys.getrefcount(out) + + out = np.empty((2,), dtype=np.int32) + out_count = sys.getrefcount(out) + + np.add.reduceat(arr, [0, 1], dtype=np.int32, out=out) + assert count == sys.getrefcount(arr) + assert out_count == sys.getrefcount(out) + + +def test_object_reduce_cleanup_on_failure(): + # Test cleanup, including of the initial value (manually provided or not) + with pytest.raises(TypeError): + np.add.reduce([1, 2, None], initial=4) + + with pytest.raises(TypeError): + np.add.reduce([1, 2, None]) + + +@pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") +@pytest.mark.parametrize("method", + [np.add.accumulate, np.add.reduce, + pytest.param(lambda x: np.add.reduceat(x, [0]), id="reduceat"), + pytest.param(lambda x: np.log.at(x, [2]), id="at")]) +def test_ufunc_methods_floaterrors(method): + # adding inf and -inf (or log(-inf) creates an invalid float and warns + arr = np.array([np.inf, 0, -np.inf]) + with np.errstate(all="warn"): + with pytest.warns(RuntimeWarning, match="invalid value"): + method(arr) + + arr = np.array([np.inf, 0, -np.inf]) + with np.errstate(all="raise"): + with pytest.raises(FloatingPointError): + method(arr) + + +def _check_neg_zero(value): + if value != 0.0: + return False + if not np.signbit(value.real): + return False + if value.dtype.kind == "c": + return np.signbit(value.imag) + return True + +@pytest.mark.parametrize("dtype", np.typecodes["AllFloat"]) +def test_addition_negative_zero(dtype): + dtype = np.dtype(dtype) + if dtype.kind == "c": + neg_zero = dtype.type(complex(-0.0, -0.0)) + else: + neg_zero = dtype.type(-0.0) + + arr = np.array(neg_zero) + arr2 = np.array(neg_zero) + + assert _check_neg_zero(arr + arr2) + # In-place ops may end up on a different path (reduce path) see gh-21211 + arr += arr2 + assert _check_neg_zero(arr) + + +@pytest.mark.parametrize("dtype", np.typecodes["AllFloat"]) +@pytest.mark.parametrize("use_initial", [True, False]) +def test_addition_reduce_negative_zero(dtype, use_initial): + dtype = np.dtype(dtype) + if dtype.kind == "c": + neg_zero = dtype.type(complex(-0.0, -0.0)) + else: + neg_zero = dtype.type(-0.0) + + kwargs = {} + if use_initial: + kwargs["initial"] = neg_zero + else: + pytest.xfail("-0. propagation in sum currently requires initial") + + # Test various length, in case SIMD paths or chunking play a role. + # 150 extends beyond the pairwise blocksize; probably not important. + for i in range(150): + arr = np.array([neg_zero] * i, dtype=dtype) + res = np.sum(arr, **kwargs) + if i > 0 or use_initial: + assert _check_neg_zero(res) + else: + # `sum([])` should probably be 0.0 and not -0.0 like `sum([-0.0])` + assert not np.signbit(res.real) + assert not np.signbit(res.imag) + + +@pytest.mark.parametrize(["dt1", "dt2"], + [("S", "U"), ("U", "S"), ("S", "d"), ("S", "V"), ("U", "l")]) +def test_addition_string_types(dt1, dt2): + arr1 = np.array([1234234], dtype=dt1) + arr2 = np.array([b"423"], dtype=dt2) + with pytest.raises(np._core._exceptions.UFuncTypeError) as exc: + np.add(arr1, arr2) + + +@pytest.mark.parametrize("order1,order2", + [(">", ">"), ("<", "<"), (">", "<"), ("<", ">")]) +def test_addition_unicode_inverse_byte_order(order1, order2): + element = 'abcd' + arr1 = np.array([element], dtype=f"{order1}U4") + arr2 = np.array([element], dtype=f"{order2}U4") + result = arr1 + arr2 + assert result == 2 * element + + +@pytest.mark.parametrize("dtype", [np.int8, np.int16, np.int32, np.int64]) +def test_find_non_long_args(dtype): + element = 'abcd' + start = dtype(0) + end = dtype(len(element)) + arr = np.array([element]) + result = np._core.umath.find(arr, "a", start, end) + assert result.dtype == np.dtype("intp") + assert result == 0 + + +def test_find_access_past_buffer(): + # This checks that no read past the string buffer occurs in + # string_fastsearch.h. The buffer class makes sure this is checked. + # To see it in action, you can remove the checks in the buffer and + # this test will produce an 'Invalid read' if run under valgrind. + arr = np.array([b'abcd', b'ebcd']) + result = np._core.umath.find(arr, b'cde', 0, np.iinfo(np.int64).max) + assert np.all(result == -1) + + +class TestLowlevelAPIAccess: + def test_resolve_dtypes_basic(self): + # Basic test for dtype resolution: + i4 = np.dtype("i4") + f4 = np.dtype("f4") + f8 = np.dtype("f8") + + r = np.add.resolve_dtypes((i4, f4, None)) + assert r == (f8, f8, f8) + + # Signature uses the same logic to parse as ufunc (less strict) + # the following is "same-kind" casting so works: + r = np.add.resolve_dtypes(( + i4, i4, None), signature=(None, None, "f4")) + assert r == (f4, f4, f4) + + # Check NEP 50 "weak" promotion also: + r = np.add.resolve_dtypes((f4, int, None)) + assert r == (f4, f4, f4) + + with pytest.raises(TypeError): + np.add.resolve_dtypes((i4, f4, None), casting="no") + + def test_resolve_dtypes_comparison(self): + i4 = np.dtype("i4") + i8 = np.dtype("i8") + b = np.dtype("?") + r = np.equal.resolve_dtypes((i4, i8, None)) + assert r == (i8, i8, b) + + def test_weird_dtypes(self): + S0 = np.dtype("S0") + # S0 is often converted by NumPy to S1, but not here: + r = np.equal.resolve_dtypes((S0, S0, None)) + assert r == (S0, S0, np.dtype(bool)) + + # Subarray dtypes are weird and may not work fully, we preserve them + # leading to a TypeError (currently no equal loop for void/structured) + dts = np.dtype("10i") + with pytest.raises(TypeError): + np.equal.resolve_dtypes((dts, dts, None)) + + def test_resolve_dtypes_reduction(self): + i2 = np.dtype("i2") + default_int_ = np.dtype(np.int_) + # Check special addition resolution: + res = np.add.resolve_dtypes((None, i2, None), reduction=True) + assert res == (default_int_, default_int_, default_int_) + + def test_resolve_dtypes_reduction_no_output(self): + i4 = np.dtype("i4") + with pytest.raises(TypeError): + # May be allowable at some point? + np.add.resolve_dtypes((i4, i4, i4), reduction=True) + + @pytest.mark.parametrize("dtypes", [ + (np.dtype("i"), np.dtype("i")), + (None, np.dtype("i"), np.dtype("f")), + (np.dtype("i"), None, np.dtype("f")), + ("i4", "i4", None)]) + def test_resolve_dtypes_errors(self, dtypes): + with pytest.raises(TypeError): + np.add.resolve_dtypes(dtypes) + + def test_resolve_dtypes_reduction_errors(self): + i2 = np.dtype("i2") + + with pytest.raises(TypeError): + np.add.resolve_dtypes((None, i2, i2)) + + with pytest.raises(TypeError): + np.add.signature((None, None, "i4")) + + @pytest.mark.skipif(not hasattr(ct, "pythonapi"), + reason="`ctypes.pythonapi` required for capsule unpacking.") + @pytest.mark.thread_unsafe(reason="modifies global object in the ctypes API") + def test_loop_access(self): + # This is a basic test for the full strided loop access + data_t = ct.c_char_p * 2 + dim_t = ct.c_ssize_t * 1 + strides_t = ct.c_ssize_t * 2 + strided_loop_t = ct.CFUNCTYPE( + ct.c_int, ct.c_void_p, data_t, dim_t, strides_t, ct.c_void_p) + + class call_info_t(ct.Structure): + _fields_ = [ + ("strided_loop", strided_loop_t), + ("context", ct.c_void_p), + ("auxdata", ct.c_void_p), + ("requires_pyapi", ct.c_byte), + ("no_floatingpoint_errors", ct.c_byte), + ] + + i4 = np.dtype("i4") + dt, call_info_obj = np.negative._resolve_dtypes_and_context((i4, i4)) + assert dt == (i4, i4) # can be used without casting + + # Fill in the rest of the information: + np.negative._get_strided_loop(call_info_obj) + + ct.pythonapi.PyCapsule_GetPointer.restype = ct.c_void_p + call_info = ct.pythonapi.PyCapsule_GetPointer( + ct.py_object(call_info_obj), + ct.c_char_p(b"numpy_1.24_ufunc_call_info")) + + call_info = ct.cast(call_info, ct.POINTER(call_info_t)).contents + + arr = np.arange(10, dtype=i4) + call_info.strided_loop( + call_info.context, + data_t(arr.ctypes.data, arr.ctypes.data), + arr.ctypes.shape, # is a C-array with 10 here + strides_t(arr.ctypes.strides[0], arr.ctypes.strides[0]), + call_info.auxdata) + + # We just directly called the negative inner-loop in-place: + assert_array_equal(arr, -np.arange(10, dtype=i4)) + + @pytest.mark.parametrize("strides", [1, (1, 2, 3), (1, "2")]) + def test__get_strided_loop_errors_bad_strides(self, strides): + i4 = np.dtype("i4") + dt, call_info = np.negative._resolve_dtypes_and_context((i4, i4)) + + with pytest.raises(TypeError, match="fixed_strides.*tuple.*or None"): + np.negative._get_strided_loop(call_info, fixed_strides=strides) + + def test__get_strided_loop_errors_bad_call_info(self): + i4 = np.dtype("i4") + dt, call_info = np.negative._resolve_dtypes_and_context((i4, i4)) + + with pytest.raises(ValueError, match="PyCapsule"): + np.negative._get_strided_loop("not the capsule!") + + with pytest.raises(TypeError, match=".*incompatible context"): + np.add._get_strided_loop(call_info) + + np.negative._get_strided_loop(call_info) + with pytest.raises(TypeError): + # cannot call it a second time: + np.negative._get_strided_loop(call_info) + + def test_long_arrays(self): + t = np.zeros((1029, 917), dtype=np.single) + t[0][0] = 1 + t[28][414] = 1 + tc = np.cos(t) + assert_equal(tc[0][0], tc[28][414]) + + +class TestUFuncInspectSignature: + PARAMS_COMMON = { + "casting": "same_kind", + "order": "K", + "dtype": None, + "subok": True, + "signature": None, + } + + PARAMS_UFUNC = { + "where": True, + } | PARAMS_COMMON + + PARAMS_GUFUNC = { + "axes": np._NoValue, + "axis": np._NoValue, + "keepdims": False, + } | PARAMS_COMMON + + @pytest.mark.parametrize("ufunc", [np.log, np.gcd, np.frexp, np.divmod, np.matvec]) + def test_dunder_signature_attr(self, ufunc: np.ufunc): + assert hasattr(ufunc, "__signature__") + assert isinstance(ufunc.__signature__, inspect.Signature) + assert inspect.signature(ufunc) == ufunc.__signature__ + + @pytest.mark.parametrize("ufunc", [np.exp, np.mod, np.frexp, np.divmod, np.vecmat]) + def test_params_common_positional(self, ufunc: np.ufunc): + sig = inspect.signature(ufunc) + + # check positional-only parameters + posonly_params = {name: param.default + for name, param in sig.parameters.items() + if param.kind is param.POSITIONAL_ONLY} + assert len(posonly_params) == ufunc.nin + assert all(default is inspect.Parameter.empty + for default in posonly_params.values()) + + # check 'out' parameter + out_param = sig.parameters.get("out") + assert out_param is not None + assert out_param.kind is inspect.Parameter.POSITIONAL_OR_KEYWORD + + @pytest.mark.parametrize("ufunc", [np.sin, np.add, np.frexp, np.divmod]) + def test_params_common_ufunc(self, ufunc: np.ufunc): + assert ufunc.signature is None # sanity check + + sig = inspect.signature(ufunc) + + # check keyword-only parameters + keyword_params = {name: param.default + for name, param in sig.parameters.items() + if param.kind is param.KEYWORD_ONLY} + assert keyword_params == self.PARAMS_UFUNC + + @pytest.mark.parametrize("gufunc", [np.matmul, np.matvec, np.vecdot, np.vecmat]) + def test_params_common_gufunc(self, gufunc: np.ufunc): + assert gufunc.signature is not None # sanity check + + sig = inspect.signature(gufunc) + + # check keyword-only parameters + keyword_params = {name: param.default + for name, param in sig.parameters.items() + if param.kind is param.KEYWORD_ONLY} + assert keyword_params == self.PARAMS_GUFUNC diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_umath.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_umath.py new file mode 100644 index 0000000000000000000000000000000000000000..ab9c594618b697faabcc52b4f61ba5520c615e6e --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_umath.py @@ -0,0 +1,4975 @@ +import fnmatch +import inspect +import itertools +import operator +import platform +import sys +import warnings +from collections import namedtuple +from fractions import Fraction +from functools import reduce + +import pytest + +import numpy as np +import numpy._core.umath as ncu +from numpy._core import _umath_tests as ncu_tests, sctypes +from numpy.testing import ( + HAS_REFCOUNT, + IS_MUSL, + IS_PYPY, + IS_WASM, + _gen_alignment_data, + assert_, + assert_allclose, + assert_almost_equal, + assert_array_almost_equal, + assert_array_almost_equal_nulp, + assert_array_equal, + assert_array_max_ulp, + assert_equal, + assert_no_warnings, + assert_raises, + assert_raises_regex, +) +from numpy.testing._private.utils import _glibc_older_than + +UFUNCS = [obj for obj in np._core.umath.__dict__.values() + if isinstance(obj, np.ufunc)] + +UFUNCS_UNARY = [ + uf for uf in UFUNCS if uf.nin == 1 +] +UFUNCS_UNARY_FP = [ + uf for uf in UFUNCS_UNARY if 'f->f' in uf.types +] + +UFUNCS_BINARY = [ + uf for uf in UFUNCS if uf.nin == 2 +] +UFUNCS_BINARY_ACC = [ + uf for uf in UFUNCS_BINARY if hasattr(uf, "accumulate") and uf.nout == 1 +] + +def interesting_binop_operands(val1, val2, dtype): + """ + Helper to create "interesting" operands to cover common code paths: + * scalar inputs + * only first "values" is an array (e.g. scalar division fast-paths) + * Longer array (SIMD) placing the value of interest at different positions + * Oddly strided arrays which may not be SIMD compatible + + It does not attempt to cover unaligned access or mixed dtypes. + These are normally handled by the casting/buffering machinery. + + This is not a fixture (currently), since I believe a fixture normally + only yields once? + """ + fill_value = 1 # could be a parameter, but maybe not an optional one? + + arr1 = np.full(10003, dtype=dtype, fill_value=fill_value) + arr2 = np.full(10003, dtype=dtype, fill_value=fill_value) + + arr1[0] = val1 + arr2[0] = val2 + + extractor = lambda res: res + yield arr1[0], arr2[0], extractor, "scalars" + + extractor = lambda res: res + yield arr1[0, ...], arr2[0, ...], extractor, "scalar-arrays" + + # reset array values to fill_value: + arr1[0] = fill_value + arr2[0] = fill_value + + for pos in [0, 1, 2, 3, 4, 5, -1, -2, -3, -4]: + arr1[pos] = val1 + arr2[pos] = val2 + + extractor = lambda res: res[pos] + yield arr1, arr2, extractor, f"off-{pos}" + yield arr1, arr2[pos], extractor, f"off-{pos}-with-scalar" + + arr1[pos] = fill_value + arr2[pos] = fill_value + + for stride in [-1, 113]: + op1 = arr1[::stride] + op2 = arr2[::stride] + op1[10] = val1 + op2[10] = val2 + + extractor = lambda res: res[10] + yield op1, op2, extractor, f"stride-{stride}" + + op1[10] = fill_value + op2[10] = fill_value + + +def on_powerpc(): + """ True if we are running on a Power PC platform.""" + return platform.processor() == 'powerpc' or \ + platform.machine().startswith('ppc') + + +def bad_arcsinh(): + """The blocklisted trig functions are not accurate on aarch64/PPC for + complex256. Rather than dig through the actual problem skip the + test. This should be fixed when we can move past glibc2.17 + which is the version in manylinux2014 + """ + if platform.machine() == 'aarch64': + x = 1.78e-10 + elif on_powerpc(): + x = 2.16e-10 + else: + return False + v1 = np.arcsinh(np.float128(x)) + v2 = np.arcsinh(np.complex256(x)).real + # The eps for float128 is 1-e33, so this is way bigger + return abs((v1 / v2) - 1.0) > 1e-23 + + +class _FilterInvalids: + def setup_method(self): + self.olderr = np.seterr(invalid='ignore') + + def teardown_method(self): + np.seterr(**self.olderr) + + +class TestConstants: + def test_pi(self): + assert_allclose(ncu.pi, 3.141592653589793, 1e-15) + + def test_e(self): + assert_allclose(ncu.e, 2.718281828459045, 1e-15) + + def test_euler_gamma(self): + assert_allclose(ncu.euler_gamma, 0.5772156649015329, 1e-15) + + +class TestOut: + def test_out_subok(self): + for subok in (True, False): + a = np.array(0.5) + o = np.empty(()) + + r = np.add(a, 2, o, subok=subok) + assert_(r is o) + r = np.add(a, 2, out=o, subok=subok) + assert_(r is o) + r = np.add(a, 2, out=(o,), subok=subok) + assert_(r is o) + + d = np.array(5.7) + o1 = np.empty(()) + o2 = np.empty((), dtype=np.int32) + + r1, r2 = np.frexp(d, o1, None, subok=subok) + assert_(r1 is o1) + r1, r2 = np.frexp(d, None, o2, subok=subok) + assert_(r2 is o2) + r1, r2 = np.frexp(d, o1, o2, subok=subok) + assert_(r1 is o1) + assert_(r2 is o2) + + r1, r2 = np.frexp(d, out=(o1, None), subok=subok) + assert_(r1 is o1) + r1, r2 = np.frexp(d, out=(None, o2), subok=subok) + assert_(r2 is o2) + r1, r2 = np.frexp(d, out=(o1, o2), subok=subok) + assert_(r1 is o1) + assert_(r2 is o2) + + with assert_raises(TypeError): + # Out argument must be tuple, since there are multiple outputs. + r1, r2 = np.frexp(d, out=o1, subok=subok) + + assert_raises(TypeError, np.add, a, 2, o, o, subok=subok) + assert_raises(TypeError, np.add, a, 2, o, out=o, subok=subok) + assert_raises(TypeError, np.add, a, 2, None, out=o, subok=subok) + assert_raises(ValueError, np.add, a, 2, out=(o, o), subok=subok) + assert_raises(ValueError, np.add, a, 2, out=(), subok=subok) + assert_raises(TypeError, np.add, a, 2, [], subok=subok) + assert_raises(TypeError, np.add, a, 2, out=[], subok=subok) + assert_raises(TypeError, np.add, a, 2, out=([],), subok=subok) + o.flags.writeable = False + assert_raises(ValueError, np.add, a, 2, o, subok=subok) + assert_raises(ValueError, np.add, a, 2, out=o, subok=subok) + assert_raises(ValueError, np.add, a, 2, out=(o,), subok=subok) + + def test_out_wrap_subok(self): + class ArrayWrap(np.ndarray): + __array_priority__ = 10 + + def __new__(cls, arr): + return np.asarray(arr).view(cls).copy() + + def __array_wrap__(self, arr, context=None, return_scalar=False): + return arr.view(type(self)) + + for subok in (True, False): + a = ArrayWrap([0.5]) + + r = np.add(a, 2, subok=subok) + if subok: + assert_(isinstance(r, ArrayWrap)) + else: + assert_(type(r) == np.ndarray) + + r = np.add(a, 2, None, subok=subok) + if subok: + assert_(isinstance(r, ArrayWrap)) + else: + assert_(type(r) == np.ndarray) + + r = np.add(a, 2, out=None, subok=subok) + if subok: + assert_(isinstance(r, ArrayWrap)) + else: + assert_(type(r) == np.ndarray) + + r = np.add(a, 2, out=(None,), subok=subok) + if subok: + assert_(isinstance(r, ArrayWrap)) + else: + assert_(type(r) == np.ndarray) + + d = ArrayWrap([5.7]) + o1 = np.empty((1,)) + o2 = np.empty((1,), dtype=np.int32) + + r1, r2 = np.frexp(d, o1, subok=subok) + if subok: + assert_(isinstance(r2, ArrayWrap)) + else: + assert_(type(r2) == np.ndarray) + + r1, r2 = np.frexp(d, o1, None, subok=subok) + if subok: + assert_(isinstance(r2, ArrayWrap)) + else: + assert_(type(r2) == np.ndarray) + + r1, r2 = np.frexp(d, None, o2, subok=subok) + if subok: + assert_(isinstance(r1, ArrayWrap)) + else: + assert_(type(r1) == np.ndarray) + + r1, r2 = np.frexp(d, out=(o1, None), subok=subok) + if subok: + assert_(isinstance(r2, ArrayWrap)) + else: + assert_(type(r2) == np.ndarray) + + r1, r2 = np.frexp(d, out=(None, o2), subok=subok) + if subok: + assert_(isinstance(r1, ArrayWrap)) + else: + assert_(type(r1) == np.ndarray) + + with assert_raises(TypeError): + # Out argument must be tuple, since there are multiple outputs. + r1, r2 = np.frexp(d, out=o1, subok=subok) + + @pytest.mark.skipif(not HAS_REFCOUNT, reason="Python lacks refcounts") + def test_out_wrap_no_leak(self): + # Regression test for gh-26545 + class ArrSubclass(np.ndarray): + pass + + arr = np.arange(10).view(ArrSubclass) + orig_refcount = sys.getrefcount(arr) + arr *= 1 + assert sys.getrefcount(arr) == orig_refcount + + +class TestComparisons: + import operator + + @pytest.mark.parametrize('dtype', sctypes['uint'] + sctypes['int'] + + sctypes['float'] + [np.bool]) + @pytest.mark.parametrize('py_comp,np_comp', [ + (operator.lt, np.less), + (operator.le, np.less_equal), + (operator.gt, np.greater), + (operator.ge, np.greater_equal), + (operator.eq, np.equal), + (operator.ne, np.not_equal) + ]) + def test_comparison_functions(self, dtype, py_comp, np_comp): + # Initialize input arrays + if dtype == np.bool: + a = np.random.choice(a=[False, True], size=1000) + b = np.random.choice(a=[False, True], size=1000) + scalar = True + else: + a = np.random.randint(low=1, high=10, size=1000).astype(dtype) + b = np.random.randint(low=1, high=10, size=1000).astype(dtype) + scalar = 5 + np_scalar = np.dtype(dtype).type(scalar) + a_lst = a.tolist() + b_lst = b.tolist() + + # (Binary) Comparison (x1=array, x2=array) + comp_b = np_comp(a, b).view(np.uint8) + comp_b_list = [int(py_comp(x, y)) for x, y in zip(a_lst, b_lst)] + + # (Scalar1) Comparison (x1=scalar, x2=array) + comp_s1 = np_comp(np_scalar, b).view(np.uint8) + comp_s1_list = [int(py_comp(scalar, x)) for x in b_lst] + + # (Scalar2) Comparison (x1=array, x2=scalar) + comp_s2 = np_comp(a, np_scalar).view(np.uint8) + comp_s2_list = [int(py_comp(x, scalar)) for x in a_lst] + + # Sequence: Binary, Scalar1 and Scalar2 + assert_(comp_b.tolist() == comp_b_list, + f"Failed comparison ({py_comp.__name__})") + assert_(comp_s1.tolist() == comp_s1_list, + f"Failed comparison ({py_comp.__name__})") + assert_(comp_s2.tolist() == comp_s2_list, + f"Failed comparison ({py_comp.__name__})") + + def test_ignore_object_identity_in_equal(self): + # Check comparing identical objects whose comparison + # is not a simple boolean, e.g., arrays that are compared elementwise. + a = np.array([np.array([1, 2, 3]), None], dtype=object) + assert_raises(ValueError, np.equal, a, a) + + # Check error raised when comparing identical non-comparable objects. + class FunkyType: + def __eq__(self, other): + raise TypeError("I won't compare") + + a = np.array([FunkyType()]) + assert_raises(TypeError, np.equal, a, a) + + # Check identity doesn't override comparison mismatch. + a = np.array([np.nan], dtype=object) + assert_equal(np.equal(a, a), [False]) + + def test_ignore_object_identity_in_not_equal(self): + # Check comparing identical objects whose comparison + # is not a simple boolean, e.g., arrays that are compared elementwise. + a = np.array([np.array([1, 2, 3]), None], dtype=object) + assert_raises(ValueError, np.not_equal, a, a) + + # Check error raised when comparing identical non-comparable objects. + class FunkyType: + def __ne__(self, other): + raise TypeError("I won't compare") + + a = np.array([FunkyType()]) + assert_raises(TypeError, np.not_equal, a, a) + + # Check identity doesn't override comparison mismatch. + a = np.array([np.nan], dtype=object) + assert_equal(np.not_equal(a, a), [True]) + + def test_error_in_equal_reduce(self): + # gh-20929 + # make sure np.equal.reduce raises a TypeError if an array is passed + # without specifying the dtype + a = np.array([0, 0]) + assert_equal(np.equal.reduce(a, dtype=bool), True) + assert_raises(TypeError, np.equal.reduce, a) + + def test_object_dtype(self): + assert np.equal(1, [1], dtype=object).dtype == object + assert np.equal(1, [1], signature=(None, None, "O")).dtype == object + + def test_object_nonbool_dtype_error(self): + # bool output dtype is fine of course: + assert np.equal(1, [1], dtype=bool).dtype == bool + + # but the following are examples do not have a loop: + with pytest.raises(TypeError, match="No loop matching"): + np.equal(1, 1, dtype=np.int64) + + with pytest.raises(TypeError, match="No loop matching"): + np.equal(1, 1, sig=(None, None, "l")) + + @pytest.mark.parametrize("dtypes", ["qQ", "Qq"]) + @pytest.mark.parametrize('py_comp, np_comp', [ + (operator.lt, np.less), + (operator.le, np.less_equal), + (operator.gt, np.greater), + (operator.ge, np.greater_equal), + (operator.eq, np.equal), + (operator.ne, np.not_equal) + ]) + @pytest.mark.parametrize("vals", [(2**60, 2**60 + 1), (2**60 + 1, 2**60)]) + def test_large_integer_direct_comparison( + self, dtypes, py_comp, np_comp, vals): + # Note that float(2**60) + 1 == float(2**60). + a1 = np.array([2**60], dtype=dtypes[0]) + a2 = np.array([2**60 + 1], dtype=dtypes[1]) + expected = py_comp(2**60, 2**60 + 1) + + assert py_comp(a1, a2) == expected + assert np_comp(a1, a2) == expected + # Also check the scalars: + s1 = a1[0] + s2 = a2[0] + assert isinstance(s1, np.integer) + assert isinstance(s2, np.integer) + # The Python operator here is mainly interesting: + assert py_comp(s1, s2) == expected + assert np_comp(s1, s2) == expected + + @pytest.mark.parametrize("dtype", np.typecodes['UnsignedInteger']) + @pytest.mark.parametrize('py_comp_func, np_comp_func', [ + (operator.lt, np.less), + (operator.le, np.less_equal), + (operator.gt, np.greater), + (operator.ge, np.greater_equal), + (operator.eq, np.equal), + (operator.ne, np.not_equal) + ]) + @pytest.mark.parametrize("flip", [True, False]) + def test_unsigned_signed_direct_comparison( + self, dtype, py_comp_func, np_comp_func, flip): + if flip: + py_comp = lambda x, y: py_comp_func(y, x) + np_comp = lambda x, y: np_comp_func(y, x) + else: + py_comp = py_comp_func + np_comp = np_comp_func + + arr = np.array([np.iinfo(dtype).max], dtype=dtype) + expected = py_comp(int(arr[0]), -1) + + assert py_comp(arr, -1) == expected + assert np_comp(arr, -1) == expected + + scalar = arr[0] + assert isinstance(scalar, np.integer) + # The Python operator here is mainly interesting: + assert py_comp(scalar, -1) == expected + assert np_comp(scalar, -1) == expected + + +class TestAdd: + def test_reduce_alignment(self): + # gh-9876 + # make sure arrays with weird strides work with the optimizations in + # pairwise_sum_@TYPE@. On x86, the 'b' field will count as aligned at a + # 4 byte offset, even though its itemsize is 8. + a = np.zeros(2, dtype=[('a', np.int32), ('b', np.float64)]) + a['a'] = -1 + assert_equal(a['b'].sum(), 0) + + +class TestDivision: + def test_division_int(self): + # int division should follow Python + x = np.array([5, 10, 90, 100, -5, -10, -90, -100, -120]) + if 5 / 10 == 0.5: + assert_equal(x / 100, [0.05, 0.1, 0.9, 1, + -0.05, -0.1, -0.9, -1, -1.2]) + else: + assert_equal(x / 100, [0, 0, 0, 1, -1, -1, -1, -1, -2]) + assert_equal(x // 100, [0, 0, 0, 1, -1, -1, -1, -1, -2]) + assert_equal(x % 100, [5, 10, 90, 0, 95, 90, 10, 0, 80]) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.parametrize("dtype,ex_val", itertools.product( + sctypes['int'] + sctypes['uint'], ( + ( + # dividend + "np.array(range(fo.max-lsize, fo.max)).astype(dtype)," + # divisors + "np.arange(lsize).astype(dtype)," + # scalar divisors + "range(15)" + ), + ( + # dividend + "np.arange(fo.min, fo.min+lsize).astype(dtype)," + # divisors + "np.arange(lsize//-2, lsize//2).astype(dtype)," + # scalar divisors + "range(fo.min, fo.min + 15)" + ), ( + # dividend + "np.array(range(fo.max-lsize, fo.max)).astype(dtype)," + # divisors + "np.arange(lsize).astype(dtype)," + # scalar divisors + "[1,3,9,13,neg, fo.min+1, fo.min//2, fo.max//3, fo.max//4]" + ) + ) + )) + def test_division_int_boundary(self, dtype, ex_val): + fo = np.iinfo(dtype) + neg = -1 if fo.min < 0 else 1 + # Large enough to test SIMD loops and remainder elements + lsize = 512 + 7 + a, b, divisors = eval(ex_val) + a_lst, b_lst = a.tolist(), b.tolist() + + c_div = lambda n, d: ( + 0 if d == 0 else ( + fo.min if (n and n == fo.min and d == -1) else n // d + ) + ) + with np.errstate(divide='ignore'): + ac = a.copy() + ac //= b + div_ab = a // b + div_lst = [c_div(x, y) for x, y in zip(a_lst, b_lst)] + + msg = "Integer arrays floor division check (//)" + assert all(div_ab == div_lst), msg + msg_eq = "Integer arrays floor division check (//=)" + assert all(ac == div_lst), msg_eq + + for divisor in divisors: + ac = a.copy() + with np.errstate(divide='ignore', over='ignore'): + div_a = a // divisor + ac //= divisor + div_lst = [c_div(i, divisor) for i in a_lst] + + assert all(div_a == div_lst), msg + assert all(ac == div_lst), msg_eq + + with np.errstate(divide='raise', over='raise'): + if 0 in b: + # Verify overflow case + with pytest.raises(FloatingPointError, + match="divide by zero encountered in floor_divide"): + a // b + else: + a // b + if fo.min and fo.min in a: + with pytest.raises(FloatingPointError, + match='overflow encountered in floor_divide'): + a // -1 + elif fo.min: + a // -1 + with pytest.raises(FloatingPointError, + match="divide by zero encountered in floor_divide"): + a // 0 + with pytest.raises(FloatingPointError, + match="divide by zero encountered in floor_divide"): + ac = a.copy() + ac //= 0 + + np.array([], dtype=dtype) // 0 + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.parametrize("dtype,ex_val", itertools.product( + sctypes['int'] + sctypes['uint'], ( + "np.array([fo.max, 1, 2, 1, 1, 2, 3], dtype=dtype)", + "np.array([fo.min, 1, -2, 1, 1, 2, -3]).astype(dtype)", + "np.arange(fo.min, fo.min+(100*10), 10, dtype=dtype)", + "np.array(range(fo.max-(100*7), fo.max, 7)).astype(dtype)", + ) + )) + def test_division_int_reduce(self, dtype, ex_val): + fo = np.iinfo(dtype) + a = eval(ex_val) + lst = a.tolist() + c_div = lambda n, d: ( + 0 if d == 0 or (n and n == fo.min and d == -1) else n // d + ) + + with np.errstate(divide='ignore'): + div_a = np.floor_divide.reduce(a) + div_lst = reduce(c_div, lst) + msg = "Reduce floor integer division check" + assert div_a == div_lst, msg + + with np.errstate(divide='raise', over='raise'): + with pytest.raises(FloatingPointError, + match="divide by zero encountered in reduce"): + np.floor_divide.reduce(np.arange(-100, 100).astype(dtype)) + if fo.min: + with pytest.raises(FloatingPointError, + match='overflow encountered in reduce'): + np.floor_divide.reduce( + np.array([fo.min, 1, -1], dtype=dtype) + ) + + @pytest.mark.parametrize( + "dividend,divisor,quotient", + [(np.timedelta64(2, 'Y'), np.timedelta64(2, 'M'), 12), + (np.timedelta64(2, 'Y'), np.timedelta64(-2, 'M'), -12), + (np.timedelta64(-2, 'Y'), np.timedelta64(2, 'M'), -12), + (np.timedelta64(-2, 'Y'), np.timedelta64(-2, 'M'), 12), + (np.timedelta64(2, 'M'), np.timedelta64(-2, 'Y'), -1), + (np.timedelta64(2, 'Y'), np.timedelta64(0, 'M'), 0), + (np.timedelta64(2, 'Y'), 2, np.timedelta64(1, 'Y')), + (np.timedelta64(2, 'Y'), -2, np.timedelta64(-1, 'Y')), + (np.timedelta64(-2, 'Y'), 2, np.timedelta64(-1, 'Y')), + (np.timedelta64(-2, 'Y'), -2, np.timedelta64(1, 'Y')), + (np.timedelta64(-2, 'Y'), -2, np.timedelta64(1, 'Y')), + (np.timedelta64(-2, 'Y'), -3, np.timedelta64(0, 'Y')), + (np.timedelta64(-2, 'Y'), 0, np.timedelta64('Nat', 'Y')), + ]) + def test_division_int_timedelta(self, dividend, divisor, quotient): + # If either divisor is 0 or quotient is Nat, check for division by 0 + if divisor and (isinstance(quotient, int) or not np.isnat(quotient)): + msg = "Timedelta floor division check" + assert dividend // divisor == quotient, msg + + # Test for arrays as well + msg = "Timedelta arrays floor division check" + dividend_array = np.array([dividend] * 5) + quotient_array = np.array([quotient] * 5) + assert all(dividend_array // divisor == quotient_array), msg + else: + if IS_WASM: + pytest.skip("fp errors don't work in wasm") + with np.errstate(divide='raise', invalid='raise'): + with pytest.raises(FloatingPointError): + dividend // divisor + + def test_division_complex(self): + # check that implementation is correct + msg = "Complex division implementation check" + x = np.array([1. + 1. * 1j, 1. + .5 * 1j, 1. + 2. * 1j], dtype=np.complex128) + assert_almost_equal(x**2 / x, x, err_msg=msg) + # check overflow, underflow + msg = "Complex division overflow/underflow check" + x = np.array([1.e+110, 1.e-110], dtype=np.complex128) + y = x**2 / x + assert_almost_equal(y / x, [1, 1], err_msg=msg) + + def test_zero_division_complex(self): + with np.errstate(invalid="ignore", divide="ignore"): + x = np.array([0.0], dtype=np.complex128) + y = 1.0 / x + assert_(np.isinf(y)[0]) + y = complex(np.inf, np.nan) / x + assert_(np.isinf(y)[0]) + y = complex(np.nan, np.inf) / x + assert_(np.isinf(y)[0]) + y = complex(np.inf, np.inf) / x + assert_(np.isinf(y)[0]) + y = 0.0 / x + assert_(np.isnan(y)[0]) + + def test_floor_division_complex(self): + # check that floor division, divmod and remainder raises type errors + x = np.array([.9 + 1j, -.1 + 1j, .9 + .5 * 1j, .9 + 2. * 1j], dtype=np.complex128) + with pytest.raises(TypeError): + x // 7 + with pytest.raises(TypeError): + np.divmod(x, 7) + with pytest.raises(TypeError): + np.remainder(x, 7) + + def test_floor_division_signed_zero(self): + # Check that the sign bit is correctly set when dividing positive and + # negative zero by one. + x = np.zeros(10) + assert_equal(np.signbit(x // 1), 0) + assert_equal(np.signbit((-x) // 1), 1) + + @pytest.mark.skipif(hasattr(np.__config__, "blas_ssl2_info"), + reason="gh-22982") + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.parametrize('dtype', np.typecodes['Float']) + def test_floor_division_errors(self, dtype): + fnan = np.array(np.nan, dtype=dtype) + fone = np.array(1.0, dtype=dtype) + fzer = np.array(0.0, dtype=dtype) + finf = np.array(np.inf, dtype=dtype) + # divide by zero error check + with np.errstate(divide='raise', invalid='ignore'): + assert_raises(FloatingPointError, np.floor_divide, fone, fzer) + with np.errstate(divide='ignore', invalid='raise'): + np.floor_divide(fone, fzer) + + # The following already contain a NaN and should not warn + with np.errstate(all='raise'): + np.floor_divide(fnan, fone) + np.floor_divide(fone, fnan) + np.floor_divide(fnan, fzer) + np.floor_divide(fzer, fnan) + + @pytest.mark.parametrize('dtype', np.typecodes['Float']) + def test_floor_division_corner_cases(self, dtype): + # test corner cases like 1.0//0.0 for errors and return vals + x = np.zeros(10, dtype=dtype) + y = np.ones(10, dtype=dtype) + fnan = np.array(np.nan, dtype=dtype) + fone = np.array(1.0, dtype=dtype) + fzer = np.array(0.0, dtype=dtype) + finf = np.array(np.inf, dtype=dtype) + with warnings.catch_warnings(): + warnings.filterwarnings('ignore', "invalid value encountered in floor_divide", RuntimeWarning) + div = np.floor_divide(fnan, fone) + assert np.isnan(div), f"div: {div}" + div = np.floor_divide(fone, fnan) + assert np.isnan(div), f"div: {div}" + div = np.floor_divide(fnan, fzer) + assert np.isnan(div), f"div: {div}" + # verify 1.0//0.0 computations return inf + with np.errstate(divide='ignore'): + z = np.floor_divide(y, x) + assert_(np.isinf(z).all()) + +def floor_divide_and_remainder(x, y): + return (np.floor_divide(x, y), np.remainder(x, y)) + + +def _signs(dt): + if dt in np.typecodes['UnsignedInteger']: + return (+1,) + else: + return (+1, -1) + + +class TestRemainder: + + def test_remainder_basic(self): + dt = np.typecodes['AllInteger'] + np.typecodes['Float'] + for op in [floor_divide_and_remainder, np.divmod]: + for dt1, dt2 in itertools.product(dt, dt): + for sg1, sg2 in itertools.product(_signs(dt1), _signs(dt2)): + fmt = 'op: %s, dt1: %s, dt2: %s, sg1: %s, sg2: %s' + msg = fmt % (op.__name__, dt1, dt2, sg1, sg2) + a = np.array(sg1 * 71, dtype=dt1) + b = np.array(sg2 * 19, dtype=dt2) + div, rem = op(a, b) + assert_equal(div * b + rem, a, err_msg=msg) + if sg2 == -1: + assert_(b < rem <= 0, msg) + else: + assert_(b > rem >= 0, msg) + + def test_float_remainder_exact(self): + # test that float results are exact for small integers. This also + # holds for the same integers scaled by powers of two. + nlst = list(range(-127, 0)) + plst = list(range(1, 128)) + dividend = nlst + [0] + plst + divisor = nlst + plst + arg = list(itertools.product(dividend, divisor)) + tgt = [divmod(*t) for t in arg] + + a, b = np.array(arg, dtype=int).T + # convert exact integer results from Python to float so that + # signed zero can be used, it is checked. + tgtdiv, tgtrem = np.array(tgt, dtype=float).T + tgtdiv = np.where((tgtdiv == 0.0) & ((b < 0) ^ (a < 0)), -0.0, tgtdiv) + tgtrem = np.where((tgtrem == 0.0) & (b < 0), -0.0, tgtrem) + + for op in [floor_divide_and_remainder, np.divmod]: + for dt in np.typecodes['Float']: + msg = f'op: {op.__name__}, dtype: {dt}' + fa = a.astype(dt) + fb = b.astype(dt) + div, rem = op(fa, fb) + assert_equal(div, tgtdiv, err_msg=msg) + assert_equal(rem, tgtrem, err_msg=msg) + + def test_float_remainder_roundoff(self): + # gh-6127 + dt = np.typecodes['Float'] + for op in [floor_divide_and_remainder, np.divmod]: + for dt1, dt2 in itertools.product(dt, dt): + for sg1, sg2 in itertools.product((+1, -1), (+1, -1)): + fmt = 'op: %s, dt1: %s, dt2: %s, sg1: %s, sg2: %s' + msg = fmt % (op.__name__, dt1, dt2, sg1, sg2) + a = np.array(sg1 * 78 * 6e-8, dtype=dt1) + b = np.array(sg2 * 6e-8, dtype=dt2) + div, rem = op(a, b) + # Equal assertion should hold when fmod is used + assert_equal(div * b + rem, a, err_msg=msg) + if sg2 == -1: + assert_(b < rem <= 0, msg) + else: + assert_(b > rem >= 0, msg) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.xfail(sys.platform.startswith("darwin"), + reason="MacOS seems to not give the correct 'invalid' warning for " + "`fmod`. Hopefully, others always do.") + @pytest.mark.parametrize('dtype', np.typecodes['Float']) + def test_float_divmod_errors(self, dtype): + # Check valid errors raised for divmod and remainder + fzero = np.array(0.0, dtype=dtype) + fone = np.array(1.0, dtype=dtype) + finf = np.array(np.inf, dtype=dtype) + fnan = np.array(np.nan, dtype=dtype) + # since divmod is combination of both remainder and divide + # ops it will set both dividebyzero and invalid flags + with np.errstate(divide='raise', invalid='ignore'): + assert_raises(FloatingPointError, np.divmod, fone, fzero) + with np.errstate(divide='ignore', invalid='raise'): + assert_raises(FloatingPointError, np.divmod, fone, fzero) + with np.errstate(invalid='raise'): + assert_raises(FloatingPointError, np.divmod, fzero, fzero) + with np.errstate(invalid='raise'): + assert_raises(FloatingPointError, np.divmod, finf, finf) + with np.errstate(divide='ignore', invalid='raise'): + assert_raises(FloatingPointError, np.divmod, finf, fzero) + with np.errstate(divide='raise', invalid='ignore'): + # inf / 0 does not set any flags, only the modulo creates a NaN + np.divmod(finf, fzero) + + @pytest.mark.skipif(hasattr(np.__config__, "blas_ssl2_info"), + reason="gh-22982") + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.xfail(sys.platform.startswith("darwin"), + reason="MacOS seems to not give the correct 'invalid' warning for " + "`fmod`. Hopefully, others always do.") + @pytest.mark.parametrize('dtype', np.typecodes['Float']) + @pytest.mark.parametrize('fn', [np.fmod, np.remainder]) + def test_float_remainder_errors(self, dtype, fn): + fzero = np.array(0.0, dtype=dtype) + fone = np.array(1.0, dtype=dtype) + finf = np.array(np.inf, dtype=dtype) + fnan = np.array(np.nan, dtype=dtype) + + # The following already contain a NaN and should not warn. + with np.errstate(all='raise'): + with pytest.raises(FloatingPointError, + match="invalid value"): + fn(fone, fzero) + fn(fnan, fzero) + fn(fzero, fnan) + fn(fone, fnan) + fn(fnan, fone) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + def test_float_remainder_overflow(self): + a = np.finfo(np.float64).tiny + with np.errstate(over='ignore', invalid='ignore'): + div, mod = np.divmod(4, a) + np.isinf(div) + assert_(mod == 0) + with np.errstate(over='raise', invalid='ignore'): + assert_raises(FloatingPointError, np.divmod, 4, a) + with np.errstate(invalid='raise', over='ignore'): + assert_raises(FloatingPointError, np.divmod, 4, a) + + def test_float_divmod_corner_cases(self): + # check nan cases + for dt in np.typecodes['Float']: + fnan = np.array(np.nan, dtype=dt) + fone = np.array(1.0, dtype=dt) + fzer = np.array(0.0, dtype=dt) + finf = np.array(np.inf, dtype=dt) + with warnings.catch_warnings(): + warnings.filterwarnings('ignore', "invalid value encountered in divmod", RuntimeWarning) + warnings.filterwarnings('ignore', "divide by zero encountered in divmod", RuntimeWarning) + div, rem = np.divmod(fone, fzer) + assert np.isinf(div), f'dt: {dt}, div: {rem}' + assert np.isnan(rem), f'dt: {dt}, rem: {rem}' + div, rem = np.divmod(fzer, fzer) + assert np.isnan(rem), f'dt: {dt}, rem: {rem}' + assert_(np.isnan(div)), f'dt: {dt}, rem: {rem}' + div, rem = np.divmod(finf, finf) + assert np.isnan(div), f'dt: {dt}, rem: {rem}' + assert np.isnan(rem), f'dt: {dt}, rem: {rem}' + div, rem = np.divmod(finf, fzer) + assert np.isinf(div), f'dt: {dt}, rem: {rem}' + assert np.isnan(rem), f'dt: {dt}, rem: {rem}' + div, rem = np.divmod(fnan, fone) + assert np.isnan(rem), f"dt: {dt}, rem: {rem}" + assert np.isnan(div), f"dt: {dt}, rem: {rem}" + div, rem = np.divmod(fone, fnan) + assert np.isnan(rem), f"dt: {dt}, rem: {rem}" + assert np.isnan(div), f"dt: {dt}, rem: {rem}" + div, rem = np.divmod(fnan, fzer) + assert np.isnan(rem), f"dt: {dt}, rem: {rem}" + assert np.isnan(div), f"dt: {dt}, rem: {rem}" + + def test_float_remainder_corner_cases(self): + # Check remainder magnitude. + for dt in np.typecodes['Float']: + fone = np.array(1.0, dtype=dt) + fzer = np.array(0.0, dtype=dt) + fnan = np.array(np.nan, dtype=dt) + b = np.array(1.0, dtype=dt) + a = np.nextafter(np.array(0.0, dtype=dt), -b) + rem = np.remainder(a, b) + assert_(rem <= b, f'dt: {dt}') + rem = np.remainder(-a, -b) + assert_(rem >= -b, f'dt: {dt}') + + # Check nans, inf + with warnings.catch_warnings(): + warnings.filterwarnings('ignore', "invalid value encountered in remainder", RuntimeWarning) + warnings.filterwarnings('ignore', "invalid value encountered in fmod", RuntimeWarning) + for dt in np.typecodes['Float']: + fone = np.array(1.0, dtype=dt) + fzer = np.array(0.0, dtype=dt) + finf = np.array(np.inf, dtype=dt) + fnan = np.array(np.nan, dtype=dt) + rem = np.remainder(fone, fzer) + assert_(np.isnan(rem), f'dt: {dt}, rem: {rem}') + # MSVC 2008 returns NaN here, so disable the check. + #rem = np.remainder(fone, finf) + #assert_(rem == fone, 'dt: %s, rem: %s' % (dt, rem)) + rem = np.remainder(finf, fone) + fmod = np.fmod(finf, fone) + assert_(np.isnan(fmod), f'dt: {dt}, fmod: {fmod}') + assert_(np.isnan(rem), f'dt: {dt}, rem: {rem}') + rem = np.remainder(finf, finf) + fmod = np.fmod(finf, fone) + assert_(np.isnan(rem), f'dt: {dt}, rem: {rem}') + assert_(np.isnan(fmod), f'dt: {dt}, fmod: {fmod}') + rem = np.remainder(finf, fzer) + fmod = np.fmod(finf, fzer) + assert_(np.isnan(rem), f'dt: {dt}, rem: {rem}') + assert_(np.isnan(fmod), f'dt: {dt}, fmod: {fmod}') + rem = np.remainder(fone, fnan) + fmod = np.fmod(fone, fnan) + assert_(np.isnan(rem), f'dt: {dt}, rem: {rem}') + assert_(np.isnan(fmod), f'dt: {dt}, fmod: {fmod}') + rem = np.remainder(fnan, fzer) + fmod = np.fmod(fnan, fzer) + assert_(np.isnan(rem), f'dt: {dt}, rem: {rem}') + assert_(np.isnan(fmod), f'dt: {dt}, fmod: {rem}') + rem = np.remainder(fnan, fone) + fmod = np.fmod(fnan, fone) + assert_(np.isnan(rem), f'dt: {dt}, rem: {rem}') + assert_(np.isnan(fmod), f'dt: {dt}, fmod: {rem}') + + +class TestDivisionIntegerOverflowsAndDivideByZero: + result_type = namedtuple('result_type', + ['nocast', 'casted']) + helper_lambdas = { + 'zero': lambda dtype: 0, + 'min': lambda dtype: np.iinfo(dtype).min, + 'neg_min': lambda dtype: -np.iinfo(dtype).min, + 'min-zero': lambda dtype: (np.iinfo(dtype).min, 0), + 'neg_min-zero': lambda dtype: (-np.iinfo(dtype).min, 0), + } + overflow_results = { + np.remainder: result_type( + helper_lambdas['zero'], helper_lambdas['zero']), + np.fmod: result_type( + helper_lambdas['zero'], helper_lambdas['zero']), + operator.mod: result_type( + helper_lambdas['zero'], helper_lambdas['zero']), + operator.floordiv: result_type( + helper_lambdas['min'], helper_lambdas['neg_min']), + np.floor_divide: result_type( + helper_lambdas['min'], helper_lambdas['neg_min']), + np.divmod: result_type( + helper_lambdas['min-zero'], helper_lambdas['neg_min-zero']) + } + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.parametrize("dtype", np.typecodes["Integer"]) + def test_signed_division_overflow(self, dtype): + to_check = interesting_binop_operands(np.iinfo(dtype).min, -1, dtype) + for op1, op2, extractor, operand_identifier in to_check: + with pytest.warns(RuntimeWarning, match="overflow encountered"): + res = op1 // op2 + + assert res.dtype == op1.dtype + assert extractor(res) == np.iinfo(op1.dtype).min + + # Remainder is well defined though, and does not warn: + res = op1 % op2 + assert res.dtype == op1.dtype + assert extractor(res) == 0 + # Check fmod as well: + res = np.fmod(op1, op2) + assert extractor(res) == 0 + + # Divmod warns for the division part: + with pytest.warns(RuntimeWarning, match="overflow encountered"): + res1, res2 = np.divmod(op1, op2) + + assert res1.dtype == res2.dtype == op1.dtype + assert extractor(res1) == np.iinfo(op1.dtype).min + assert extractor(res2) == 0 + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.parametrize("dtype", np.typecodes["AllInteger"]) + def test_divide_by_zero(self, dtype): + # Note that the return value cannot be well defined here, but NumPy + # currently uses 0 consistently. This could be changed. + to_check = interesting_binop_operands(1, 0, dtype) + for op1, op2, extractor, operand_identifier in to_check: + with pytest.warns(RuntimeWarning, match="divide by zero"): + res = op1 // op2 + + assert res.dtype == op1.dtype + assert extractor(res) == 0 + + with pytest.warns(RuntimeWarning, match="divide by zero"): + res1, res2 = np.divmod(op1, op2) + + assert res1.dtype == res2.dtype == op1.dtype + assert extractor(res1) == 0 + assert extractor(res2) == 0 + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.parametrize("dividend_dtype", sctypes['int']) + @pytest.mark.parametrize("divisor_dtype", sctypes['int']) + @pytest.mark.parametrize("operation", + [np.remainder, np.fmod, np.divmod, np.floor_divide, + operator.mod, operator.floordiv]) + @np.errstate(divide='warn', over='warn') + def test_overflows(self, dividend_dtype, divisor_dtype, operation): + # SIMD tries to perform the operation on as many elements as possible + # that is a multiple of the register's size. We resort to the + # default implementation for the leftover elements. + # We try to cover all paths here. + arrays = [np.array([np.iinfo(dividend_dtype).min] * i, + dtype=dividend_dtype) for i in range(1, 129)] + divisor = np.array([-1], dtype=divisor_dtype) + # If dividend is a larger type than the divisor (`else` case), + # then, result will be a larger type than dividend and will not + # result in an overflow for `divmod` and `floor_divide`. + if np.dtype(dividend_dtype).itemsize >= np.dtype( + divisor_dtype).itemsize and operation in ( + np.divmod, np.floor_divide, operator.floordiv): + with pytest.warns( + RuntimeWarning, + match="overflow encountered in"): + result = operation( + dividend_dtype(np.iinfo(dividend_dtype).min), + divisor_dtype(-1) + ) + assert result == self.overflow_results[operation].nocast( + dividend_dtype) + + # Arrays + for a in arrays: + # In case of divmod, we need to flatten the result + # column first as we get a column vector of quotient and + # remainder and a normal flatten of the expected result. + with pytest.warns( + RuntimeWarning, + match="overflow encountered in"): + result = np.array(operation(a, divisor)).flatten('f') + expected_array = np.array( + [self.overflow_results[operation].nocast( + dividend_dtype)] * len(a)).flatten() + assert_array_equal(result, expected_array) + else: + # Scalars + result = operation( + dividend_dtype(np.iinfo(dividend_dtype).min), + divisor_dtype(-1) + ) + assert result == self.overflow_results[operation].casted( + dividend_dtype) + + # Arrays + for a in arrays: + # See above comment on flatten + result = np.array(operation(a, divisor)).flatten('f') + expected_array = np.array( + [self.overflow_results[operation].casted( + dividend_dtype)] * len(a)).flatten() + assert_array_equal(result, expected_array) + + +class TestCbrt: + def test_cbrt_scalar(self): + assert_almost_equal((np.cbrt(np.float32(-2.5)**3)), -2.5) + + def test_cbrt(self): + x = np.array([1., 2., -3., np.inf, -np.inf]) + assert_almost_equal(np.cbrt(x**3), x) + + assert_(np.isnan(np.cbrt(np.nan))) + assert_equal(np.cbrt(np.inf), np.inf) + assert_equal(np.cbrt(-np.inf), -np.inf) + + +class TestPower: + def test_power_float(self): + x = np.array([1., 2., 3.]) + assert_equal(x**0, [1., 1., 1.]) + assert_equal(x**1, x) + assert_equal(x**2, [1., 4., 9.]) + y = x.copy() + y **= 2 + assert_equal(y, [1., 4., 9.]) + assert_almost_equal(x**(-1), [1., 0.5, 1. / 3]) + assert_almost_equal(x**(0.5), [1., ncu.sqrt(2), ncu.sqrt(3)]) + + for out, inp, msg in _gen_alignment_data(dtype=np.float32, + type='unary', + max_size=11): + exp = [ncu.sqrt(i) for i in inp] + assert_almost_equal(inp**(0.5), exp, err_msg=msg) + np.sqrt(inp, out=out) + assert_equal(out, exp, err_msg=msg) + + for out, inp, msg in _gen_alignment_data(dtype=np.float64, + type='unary', + max_size=7): + exp = [ncu.sqrt(i) for i in inp] + assert_almost_equal(inp**(0.5), exp, err_msg=msg) + np.sqrt(inp, out=out) + assert_equal(out, exp, err_msg=msg) + + def test_power_complex(self): + x = np.array([1 + 2j, 2 + 3j, 3 + 4j]) + assert_equal(x**0, [1., 1., 1.]) + assert_equal(x**1, x) + assert_almost_equal(x**2, [-3 + 4j, -5 + 12j, -7 + 24j]) + assert_almost_equal(x**3, [(1 + 2j)**3, (2 + 3j)**3, (3 + 4j)**3]) + assert_almost_equal(x**4, [(1 + 2j)**4, (2 + 3j)**4, (3 + 4j)**4]) + assert_almost_equal(x**(-1), [1 / (1 + 2j), 1 / (2 + 3j), 1 / (3 + 4j)]) + assert_almost_equal(x**(-2), [1 / (1 + 2j)**2, 1 / (2 + 3j)**2, 1 / (3 + 4j)**2]) + assert_almost_equal(x**(-3), [(-11 + 2j) / 125, (-46 - 9j) / 2197, + (-117 - 44j) / 15625]) + assert_almost_equal(x**(0.5), [ncu.sqrt(1 + 2j), ncu.sqrt(2 + 3j), + ncu.sqrt(3 + 4j)]) + norm = 1. / ((x**14)[0]) + assert_almost_equal(x**14 * norm, + [i * norm for i in [-76443 + 16124j, 23161315 + 58317492j, + 5583548873 + 2465133864j]]) + + # Ticket #836 + def assert_complex_equal(x, y): + assert_array_equal(x.real, y.real) + assert_array_equal(x.imag, y.imag) + + for z in [complex(0, np.inf), complex(1, np.inf)]: + z = np.array([z], dtype=np.complex128) + with np.errstate(invalid="ignore"): + assert_complex_equal(z**1, z) + assert_complex_equal(z**2, z * z) + assert_complex_equal(z**3, z * z * z) + + def test_power_zero(self): + # ticket #1271 + zero = np.array([0j]) + one = np.array([1 + 0j]) + cnan = np.array([complex(np.nan, np.nan)]) + # FIXME cinf not tested. + #cinf = np.array([complex(np.inf, 0)]) + + def assert_complex_equal(x, y): + x, y = np.asarray(x), np.asarray(y) + assert_array_equal(x.real, y.real) + assert_array_equal(x.imag, y.imag) + + # positive powers + for p in [0.33, 0.5, 1, 1.5, 2, 3, 4, 5, 6.6]: + assert_complex_equal(np.power(zero, p), zero) + + # zero power + assert_complex_equal(np.power(zero, 0), one) + with np.errstate(invalid="ignore"): + assert_complex_equal(np.power(zero, 0 + 1j), cnan) + + # negative power + for p in [0.33, 0.5, 1, 1.5, 2, 3, 4, 5, 6.6]: + assert_complex_equal(np.power(zero, -p), cnan) + assert_complex_equal(np.power(zero, -1 + 0.2j), cnan) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + def test_zero_power_nonzero(self): + # Testing 0^{Non-zero} issue 18378 + zero = np.array([0.0 + 0.0j]) + cnan = np.array([complex(np.nan, np.nan)]) + + def assert_complex_equal(x, y): + assert_array_equal(x.real, y.real) + assert_array_equal(x.imag, y.imag) + + # Complex powers with positive real part will not generate a warning + assert_complex_equal(np.power(zero, 1 + 4j), zero) + assert_complex_equal(np.power(zero, 2 - 3j), zero) + # Testing zero values when real part is greater than zero + assert_complex_equal(np.power(zero, 1 + 1j), zero) + assert_complex_equal(np.power(zero, 1 + 0j), zero) + assert_complex_equal(np.power(zero, 1 - 1j), zero) + # Complex powers will negative real part or 0 (provided imaginary + # part is not zero) will generate a NAN and hence a RUNTIME warning + with pytest.warns(expected_warning=RuntimeWarning) as r: + assert_complex_equal(np.power(zero, -1 + 1j), cnan) + assert_complex_equal(np.power(zero, -2 - 3j), cnan) + assert_complex_equal(np.power(zero, -7 + 0j), cnan) + assert_complex_equal(np.power(zero, 0 + 1j), cnan) + assert_complex_equal(np.power(zero, 0 - 1j), cnan) + assert len(r) == 5 + + def test_fast_power(self): + x = np.array([1, 2, 3], np.int16) + res = x**2.0 + assert_((x**2.00001).dtype is res.dtype) + assert_array_equal(res, [1, 4, 9]) + # check the inplace operation on the casted copy doesn't mess with x + assert_(not np.may_share_memory(res, x)) + assert_array_equal(x, [1, 2, 3]) + + # Check that the fast path ignores 1-element not 0-d arrays + res = x ** np.array([[[2]]]) + assert_equal(res.shape, (1, 1, 3)) + + def test_integer_power(self): + a = np.array([15, 15], 'i8') + b = np.power(a, a) + assert_equal(b, [437893890380859375, 437893890380859375]) + + def test_integer_power_with_integer_zero_exponent(self): + dtypes = np.typecodes['Integer'] + for dt in dtypes: + arr = np.arange(-10, 10, dtype=dt) + assert_equal(np.power(arr, 0), np.ones_like(arr)) + + dtypes = np.typecodes['UnsignedInteger'] + for dt in dtypes: + arr = np.arange(10, dtype=dt) + assert_equal(np.power(arr, 0), np.ones_like(arr)) + + def test_integer_power_of_1(self): + dtypes = np.typecodes['AllInteger'] + for dt in dtypes: + arr = np.arange(10, dtype=dt) + assert_equal(np.power(1, arr), np.ones_like(arr)) + + def test_integer_power_of_zero(self): + dtypes = np.typecodes['AllInteger'] + for dt in dtypes: + arr = np.arange(1, 10, dtype=dt) + assert_equal(np.power(0, arr), np.zeros_like(arr)) + + def test_integer_to_negative_power(self): + dtypes = np.typecodes['Integer'] + for dt in dtypes: + a = np.array([0, 1, 2, 3], dtype=dt) + b = np.array([0, 1, 2, -3], dtype=dt) + one = np.array(1, dtype=dt) + minusone = np.array(-1, dtype=dt) + assert_raises(ValueError, np.power, a, b) + assert_raises(ValueError, np.power, a, minusone) + assert_raises(ValueError, np.power, one, b) + assert_raises(ValueError, np.power, one, minusone) + + def test_float_to_inf_power(self): + for dt in [np.float32, np.float64]: + a = np.array([1, 1, 2, 2, -2, -2, np.inf, -np.inf], dt) + b = np.array([np.inf, -np.inf, np.inf, -np.inf, + np.inf, -np.inf, np.inf, -np.inf], dt) + r = np.array([1, 1, np.inf, 0, np.inf, 0, np.inf, 0], dt) + assert_equal(np.power(a, b), r) + + def test_power_fast_paths(self): + # gh-26055 + for dt in [np.float32, np.float64]: + a = np.array([0, 1.1, 2, 12e12, -10., np.inf, -np.inf], dt) + expected = np.array([0.0, 1.21, 4., 1.44e+26, 100, np.inf, np.inf]) + result = np.power(a, 2.) + assert_array_max_ulp(result, expected.astype(dt), maxulp=1) + + a = np.array([0, 1.1, 2, 12e12], dt) + expected = np.sqrt(a).astype(dt) + result = np.power(a, 0.5) + assert_array_max_ulp(result, expected, maxulp=1) + + +class TestFloat_power: + def test_type_conversion(self): + arg_type = '?bhilBHILefdgFDG' + res_type = 'ddddddddddddgDDG' + for dtin, dtout in zip(arg_type, res_type): + msg = f"dtin: {dtin}, dtout: {dtout}" + arg = np.ones(1, dtype=dtin) + res = np.float_power(arg, arg) + assert_(res.dtype.name == np.dtype(dtout).name, msg) + + +class TestLog2: + @pytest.mark.parametrize('dt', ['f', 'd', 'g']) + def test_log2_values(self, dt): + x = [1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024] + y = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] + xf = np.array(x, dtype=dt) + yf = np.array(y, dtype=dt) + assert_almost_equal(np.log2(xf), yf) + + @pytest.mark.parametrize("i", range(1, 65)) + def test_log2_ints(self, i): + # a good log2 implementation should provide this, + # might fail on OS with bad libm + v = np.log2(2.**i) + assert_equal(v, float(i), err_msg='at exponent %d' % i) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + def test_log2_special(self): + assert_equal(np.log2(1.), 0.) + assert_equal(np.log2(np.inf), np.inf) + assert_(np.isnan(np.log2(np.nan))) + + with warnings.catch_warnings(record=True) as w: + warnings.filterwarnings('always', '', RuntimeWarning) + assert_(np.isnan(np.log2(-1.))) + assert_(np.isnan(np.log2(-np.inf))) + assert_equal(np.log2(0.), -np.inf) + assert_(w[0].category is RuntimeWarning) + assert_(w[1].category is RuntimeWarning) + assert_(w[2].category is RuntimeWarning) + + +class TestExp2: + def test_exp2_values(self): + x = [1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024] + y = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] + for dt in ['f', 'd', 'g']: + xf = np.array(x, dtype=dt) + yf = np.array(y, dtype=dt) + assert_almost_equal(np.exp2(yf), xf) + + +class TestLogAddExp2(_FilterInvalids): + # Need test for intermediate precisions + def test_logaddexp2_values(self): + x = [1, 2, 3, 4, 5] + y = [5, 4, 3, 2, 1] + z = [6, 6, 6, 6, 6] + for dt, dec_ in zip(['f', 'd', 'g'], [6, 15, 15]): + xf = np.log2(np.array(x, dtype=dt)) + yf = np.log2(np.array(y, dtype=dt)) + zf = np.log2(np.array(z, dtype=dt)) + assert_almost_equal(np.logaddexp2(xf, yf), zf, decimal=dec_) + + def test_logaddexp2_range(self): + x = [1000000, -1000000, 1000200, -1000200] + y = [1000200, -1000200, 1000000, -1000000] + z = [1000200, -1000000, 1000200, -1000000] + for dt in ['f', 'd', 'g']: + logxf = np.array(x, dtype=dt) + logyf = np.array(y, dtype=dt) + logzf = np.array(z, dtype=dt) + assert_almost_equal(np.logaddexp2(logxf, logyf), logzf) + + def test_inf(self): + inf = np.inf + x = [inf, -inf, inf, -inf, inf, 1, -inf, 1] # noqa: E221 + y = [inf, inf, -inf, -inf, 1, inf, 1, -inf] # noqa: E221 + z = [inf, inf, inf, -inf, inf, inf, 1, 1] + with np.errstate(invalid='raise'): + for dt in ['f', 'd', 'g']: + logxf = np.array(x, dtype=dt) + logyf = np.array(y, dtype=dt) + logzf = np.array(z, dtype=dt) + assert_equal(np.logaddexp2(logxf, logyf), logzf) + + def test_nan(self): + assert_(np.isnan(np.logaddexp2(np.nan, np.inf))) + assert_(np.isnan(np.logaddexp2(np.inf, np.nan))) + assert_(np.isnan(np.logaddexp2(np.nan, 0))) + assert_(np.isnan(np.logaddexp2(0, np.nan))) + assert_(np.isnan(np.logaddexp2(np.nan, np.nan))) + + def test_reduce(self): + assert_equal(np.logaddexp2.identity, -np.inf) + assert_equal(np.logaddexp2.reduce([]), -np.inf) + assert_equal(np.logaddexp2.reduce([-np.inf]), -np.inf) + assert_equal(np.logaddexp2.reduce([-np.inf, 0]), 0) + + +class TestLog: + def test_log_values(self): + x = [1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024] + y = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] + for dt in ['f', 'd', 'g']: + log2_ = 0.69314718055994530943 + xf = np.array(x, dtype=dt) + yf = np.array(y, dtype=dt) * log2_ + assert_almost_equal(np.log(xf), yf) + + # test aliasing(issue #17761) + x = np.array([2, 0.937500, 3, 0.947500, 1.054697]) + xf = np.log(x) + assert_almost_equal(np.log(x, out=x), xf) + + def test_log_values_maxofdtype(self): + # test log() of max for dtype does not raise + dtypes = [np.float32, np.float64] + # This is failing at least on linux aarch64 (see gh-25460), and on most + # other non x86-64 platforms checking `longdouble` isn't too useful as + # it's an alias for float64. + if platform.machine() == 'x86_64': + dtypes += [np.longdouble] + + for dt in dtypes: + with np.errstate(all='raise'): + x = np.finfo(dt).max + np.log(x) + + def test_log_strides(self): + np.random.seed(42) + strides = np.array([-4, -3, -2, -1, 1, 2, 3, 4]) + sizes = np.arange(2, 100) + for ii in sizes: + x_f64 = np.float64(np.random.uniform(low=0.01, high=100.0, size=ii)) + x_special = x_f64.copy() + x_special[3:-1:4] = 1.0 + y_true = np.log(x_f64) + y_special = np.log(x_special) + for jj in strides: + assert_array_almost_equal_nulp(np.log(x_f64[::jj]), y_true[::jj], nulp=2) + assert_array_almost_equal_nulp(np.log(x_special[::jj]), y_special[::jj], nulp=2) + + # Reference values were computed with mpmath, with mp.dps = 200. + @pytest.mark.parametrize( + 'z, wref', + [(1 + 1e-12j, 5e-25 + 1e-12j), + (1.000000000000001 + 3e-08j, + 1.5602230246251546e-15 + 2.999999999999996e-08j), + (0.9999995000000417 + 0.0009999998333333417j, + 7.831475869017683e-18 + 0.001j), + (0.9999999999999996 + 2.999999999999999e-08j, + 5.9107901499372034e-18 + 3e-08j), + (0.99995000042 - 0.009999833j, + -7.015159763822903e-15 - 0.009999999665816696j)], + ) + def test_log_precision_float64(self, z, wref): + w = np.log(z) + assert_allclose(w, wref, rtol=1e-15) + + # Reference values were computed with mpmath, with mp.dps = 200. + @pytest.mark.parametrize( + 'z, wref', + [(np.complex64(1.0 + 3e-6j), np.complex64(4.5e-12 + 3e-06j)), + (np.complex64(1.0 - 2e-5j), np.complex64(1.9999999e-10 - 2e-5j)), + (np.complex64(0.9999999 + 1e-06j), + np.complex64(-1.192088e-07 + 1.0000001e-06j))], + ) + def test_log_precision_float32(self, z, wref): + w = np.log(z) + assert_allclose(w, wref, rtol=1e-6) + + +class TestExp: + def test_exp_values(self): + x = [1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024] + y = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] + for dt in ['f', 'd', 'g']: + log2_ = 0.69314718055994530943 + xf = np.array(x, dtype=dt) + yf = np.array(y, dtype=dt) * log2_ + assert_almost_equal(np.exp(yf), xf) + + def test_exp_strides(self): + np.random.seed(42) + strides = np.array([-4, -3, -2, -1, 1, 2, 3, 4]) + sizes = np.arange(2, 100) + for ii in sizes: + x_f64 = np.float64(np.random.uniform(low=0.01, high=709.1, size=ii)) + y_true = np.exp(x_f64) + for jj in strides: + assert_array_almost_equal_nulp(np.exp(x_f64[::jj]), y_true[::jj], nulp=2) + +class TestSpecialFloats: + def test_exp_values(self): + with np.errstate(under='raise', over='raise'): + x = [np.nan, np.nan, np.inf, 0.] + y = [np.nan, -np.nan, np.inf, -np.inf] + for dt in ['e', 'f', 'd', 'g']: + xf = np.array(x, dtype=dt) + yf = np.array(y, dtype=dt) + assert_equal(np.exp(yf), xf) + + # See: https://github.com/numpy/numpy/issues/19192 + @pytest.mark.xfail( + _glibc_older_than("2.17"), + reason="Older glibc versions may not raise appropriate FP exceptions" + ) + def test_exp_exceptions(self): + with np.errstate(over='raise'): + assert_raises(FloatingPointError, np.exp, np.float16(11.0899)) + assert_raises(FloatingPointError, np.exp, np.float32(100.)) + assert_raises(FloatingPointError, np.exp, np.float32(1E19)) + assert_raises(FloatingPointError, np.exp, np.float64(800.)) + assert_raises(FloatingPointError, np.exp, np.float64(1E19)) + + with np.errstate(under='raise'): + assert_raises(FloatingPointError, np.exp, np.float16(-17.5)) + assert_raises(FloatingPointError, np.exp, np.float32(-1000.)) + assert_raises(FloatingPointError, np.exp, np.float32(-1E19)) + assert_raises(FloatingPointError, np.exp, np.float64(-1000.)) + assert_raises(FloatingPointError, np.exp, np.float64(-1E19)) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + def test_log_values(self): + with np.errstate(all='ignore'): + x = [np.nan, np.nan, np.inf, np.nan, -np.inf, np.nan] + y = [np.nan, -np.nan, np.inf, -np.inf, 0.0, -1.0] + y1p = [np.nan, -np.nan, np.inf, -np.inf, -1.0, -2.0] + for dt in ['e', 'f', 'd', 'g']: + xf = np.array(x, dtype=dt) + yf = np.array(y, dtype=dt) + yf1p = np.array(y1p, dtype=dt) + assert_equal(np.log(yf), xf) + assert_equal(np.log2(yf), xf) + assert_equal(np.log10(yf), xf) + assert_equal(np.log1p(yf1p), xf) + + with np.errstate(divide='raise'): + for dt in ['e', 'f', 'd']: + assert_raises(FloatingPointError, np.log, + np.array(0.0, dtype=dt)) + assert_raises(FloatingPointError, np.log2, + np.array(0.0, dtype=dt)) + assert_raises(FloatingPointError, np.log10, + np.array(0.0, dtype=dt)) + assert_raises(FloatingPointError, np.log1p, + np.array(-1.0, dtype=dt)) + + with np.errstate(invalid='raise'): + for dt in ['e', 'f', 'd']: + assert_raises(FloatingPointError, np.log, + np.array(-np.inf, dtype=dt)) + assert_raises(FloatingPointError, np.log, + np.array(-1.0, dtype=dt)) + assert_raises(FloatingPointError, np.log2, + np.array(-np.inf, dtype=dt)) + assert_raises(FloatingPointError, np.log2, + np.array(-1.0, dtype=dt)) + assert_raises(FloatingPointError, np.log10, + np.array(-np.inf, dtype=dt)) + assert_raises(FloatingPointError, np.log10, + np.array(-1.0, dtype=dt)) + assert_raises(FloatingPointError, np.log1p, + np.array(-np.inf, dtype=dt)) + assert_raises(FloatingPointError, np.log1p, + np.array(-2.0, dtype=dt)) + + # See https://github.com/numpy/numpy/issues/18005 + with assert_no_warnings(): + a = np.array(1e9, dtype='float32') + np.log(a) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.parametrize('dtype', ['e', 'f', 'd', 'g']) + def test_sincos_values(self, dtype): + with np.errstate(all='ignore'): + x = [np.nan, np.nan, np.nan, np.nan] + y = [np.nan, -np.nan, np.inf, -np.inf] + xf = np.array(x, dtype=dtype) + yf = np.array(y, dtype=dtype) + assert_equal(np.sin(yf), xf) + assert_equal(np.cos(yf), xf) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.xfail( + sys.platform.startswith("darwin"), + reason="underflow is triggered for scalar 'sin'" + ) + def test_sincos_underflow(self): + with np.errstate(under='raise'): + underflow_trigger = np.array( + float.fromhex("0x1.f37f47a03f82ap-511"), + dtype=np.float64 + ) + np.sin(underflow_trigger) + np.cos(underflow_trigger) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.parametrize('callable', [np.sin, np.cos]) + @pytest.mark.parametrize('dtype', ['e', 'f', 'd']) + @pytest.mark.parametrize('value', [np.inf, -np.inf]) + def test_sincos_errors(self, callable, dtype, value): + with np.errstate(invalid='raise'): + assert_raises(FloatingPointError, callable, + np.array([value], dtype=dtype)) + + @pytest.mark.parametrize('callable', [np.sin, np.cos]) + @pytest.mark.parametrize('dtype', ['f', 'd']) + @pytest.mark.parametrize('stride', [-1, 1, 2, 4, 5]) + def test_sincos_overlaps(self, callable, dtype, stride): + N = 100 + M = N // abs(stride) + rng = np.random.default_rng(42) + x = rng.standard_normal(N, dtype) + y = callable(x[::stride]) + callable(x[::stride], out=x[:M]) + assert_equal(x[:M], y) + + @pytest.mark.parametrize('dt', ['e', 'f', 'd', 'g']) + def test_sqrt_values(self, dt): + with np.errstate(all='ignore'): + x = [np.nan, np.nan, np.inf, np.nan, 0.] + y = [np.nan, -np.nan, np.inf, -np.inf, 0.] + xf = np.array(x, dtype=dt) + yf = np.array(y, dtype=dt) + assert_equal(np.sqrt(yf), xf) + + # with np.errstate(invalid='raise'): + # assert_raises( + # FloatingPointError, np.sqrt, np.array(-100., dtype=dt) + # ) + + def test_abs_values(self): + x = [np.nan, np.nan, np.inf, np.inf, 0., 0., 1.0, 1.0] + y = [np.nan, -np.nan, np.inf, -np.inf, 0., -0., -1.0, 1.0] + for dt in ['e', 'f', 'd', 'g']: + xf = np.array(x, dtype=dt) + yf = np.array(y, dtype=dt) + assert_equal(np.abs(yf), xf) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + def test_square_values(self): + x = [np.nan, np.nan, np.inf, np.inf] + y = [np.nan, -np.nan, np.inf, -np.inf] + with np.errstate(all='ignore'): + for dt in ['e', 'f', 'd', 'g']: + xf = np.array(x, dtype=dt) + yf = np.array(y, dtype=dt) + assert_equal(np.square(yf), xf) + + with np.errstate(over='raise'): + assert_raises(FloatingPointError, np.square, + np.array(1E3, dtype='e')) + assert_raises(FloatingPointError, np.square, + np.array(1E32, dtype='f')) + assert_raises(FloatingPointError, np.square, + np.array(1E200, dtype='d')) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + def test_reciprocal_values(self): + with np.errstate(all='ignore'): + x = [np.nan, np.nan, 0.0, -0.0, np.inf, -np.inf] + y = [np.nan, -np.nan, np.inf, -np.inf, 0., -0.] + for dt in ['e', 'f', 'd', 'g']: + xf = np.array(x, dtype=dt) + yf = np.array(y, dtype=dt) + assert_equal(np.reciprocal(yf), xf) + + with np.errstate(divide='raise'): + for dt in ['e', 'f', 'd', 'g']: + assert_raises(FloatingPointError, np.reciprocal, + np.array(-0.0, dtype=dt)) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + def test_tan(self): + with np.errstate(all='ignore'): + in_ = [np.nan, -np.nan, 0.0, -0.0, np.inf, -np.inf] + out = [np.nan, np.nan, 0.0, -0.0, np.nan, np.nan] + for dt in ['e', 'f', 'd']: + in_arr = np.array(in_, dtype=dt) + out_arr = np.array(out, dtype=dt) + assert_equal(np.tan(in_arr), out_arr) + + with np.errstate(invalid='raise'): + for dt in ['e', 'f', 'd']: + assert_raises(FloatingPointError, np.tan, + np.array(np.inf, dtype=dt)) + assert_raises(FloatingPointError, np.tan, + np.array(-np.inf, dtype=dt)) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + def test_arcsincos(self): + with np.errstate(all='ignore'): + in_ = [np.nan, -np.nan, np.inf, -np.inf] + out = [np.nan, np.nan, np.nan, np.nan] + for dt in ['e', 'f', 'd']: + in_arr = np.array(in_, dtype=dt) + out_arr = np.array(out, dtype=dt) + assert_equal(np.arcsin(in_arr), out_arr) + assert_equal(np.arccos(in_arr), out_arr) + + for callable in [np.arcsin, np.arccos]: + for value in [np.inf, -np.inf, 2.0, -2.0]: + for dt in ['e', 'f', 'd']: + with np.errstate(invalid='raise'): + assert_raises(FloatingPointError, callable, + np.array(value, dtype=dt)) + + def test_arctan(self): + with np.errstate(all='ignore'): + in_ = [np.nan, -np.nan] + out = [np.nan, np.nan] + for dt in ['e', 'f', 'd']: + in_arr = np.array(in_, dtype=dt) + out_arr = np.array(out, dtype=dt) + assert_equal(np.arctan(in_arr), out_arr) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + def test_sinh(self): + in_ = [np.nan, -np.nan, np.inf, -np.inf] + out = [np.nan, np.nan, np.inf, -np.inf] + for dt in ['e', 'f', 'd']: + in_arr = np.array(in_, dtype=dt) + out_arr = np.array(out, dtype=dt) + assert_equal(np.sinh(in_arr), out_arr) + + with np.errstate(over='raise'): + assert_raises(FloatingPointError, np.sinh, + np.array(12.0, dtype='e')) + assert_raises(FloatingPointError, np.sinh, + np.array(120.0, dtype='f')) + assert_raises(FloatingPointError, np.sinh, + np.array(1200.0, dtype='d')) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + @pytest.mark.skipif('bsd' in sys.platform, + reason="fallback implementation may not raise, see gh-2487") + def test_cosh(self): + in_ = [np.nan, -np.nan, np.inf, -np.inf] + out = [np.nan, np.nan, np.inf, np.inf] + for dt in ['e', 'f', 'd']: + in_arr = np.array(in_, dtype=dt) + out_arr = np.array(out, dtype=dt) + assert_equal(np.cosh(in_arr), out_arr) + + with np.errstate(over='raise'): + assert_raises(FloatingPointError, np.cosh, + np.array(12.0, dtype='e')) + assert_raises(FloatingPointError, np.cosh, + np.array(120.0, dtype='f')) + assert_raises(FloatingPointError, np.cosh, + np.array(1200.0, dtype='d')) + + def test_tanh(self): + in_ = [np.nan, -np.nan, np.inf, -np.inf] + out = [np.nan, np.nan, 1.0, -1.0] + for dt in ['e', 'f', 'd']: + in_arr = np.array(in_, dtype=dt) + out_arr = np.array(out, dtype=dt) + assert_array_max_ulp(np.tanh(in_arr), out_arr, 3) + + def test_arcsinh(self): + in_ = [np.nan, -np.nan, np.inf, -np.inf] + out = [np.nan, np.nan, np.inf, -np.inf] + for dt in ['e', 'f', 'd']: + in_arr = np.array(in_, dtype=dt) + out_arr = np.array(out, dtype=dt) + assert_equal(np.arcsinh(in_arr), out_arr) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + def test_arccosh(self): + with np.errstate(all='ignore'): + in_ = [np.nan, -np.nan, np.inf, -np.inf, 1.0, 0.0] + out = [np.nan, np.nan, np.inf, np.nan, 0.0, np.nan] + for dt in ['e', 'f', 'd']: + in_arr = np.array(in_, dtype=dt) + out_arr = np.array(out, dtype=dt) + assert_equal(np.arccosh(in_arr), out_arr) + + for value in [0.0, -np.inf]: + with np.errstate(invalid='raise'): + for dt in ['e', 'f', 'd']: + assert_raises(FloatingPointError, np.arccosh, + np.array(value, dtype=dt)) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + def test_arctanh(self): + with np.errstate(all='ignore'): + in_ = [np.nan, -np.nan, np.inf, -np.inf, 1.0, -1.0, 2.0] + out = [np.nan, np.nan, np.nan, np.nan, np.inf, -np.inf, np.nan] + for dt in ['e', 'f', 'd']: + in_arr = np.array(in_, dtype=dt) + out_arr = np.array(out, dtype=dt) + assert_equal(np.arctanh(in_arr), out_arr) + + for value in [1.01, np.inf, -np.inf, 1.0, -1.0]: + with np.errstate(invalid='raise', divide='raise'): + for dt in ['e', 'f', 'd']: + assert_raises(FloatingPointError, np.arctanh, + np.array(value, dtype=dt)) + + # Make sure glibc < 2.18 atanh is not used, issue 25087 + assert np.signbit(np.arctanh(-1j).real) + + # See: https://github.com/numpy/numpy/issues/20448 + @pytest.mark.xfail( + _glibc_older_than("2.17"), + reason="Older glibc versions may not raise appropriate FP exceptions" + ) + def test_exp2(self): + with np.errstate(all='ignore'): + in_ = [np.nan, -np.nan, np.inf, -np.inf] + out = [np.nan, np.nan, np.inf, 0.0] + for dt in ['e', 'f', 'd']: + in_arr = np.array(in_, dtype=dt) + out_arr = np.array(out, dtype=dt) + assert_equal(np.exp2(in_arr), out_arr) + + for value in [2000.0, -2000.0]: + with np.errstate(over='raise', under='raise'): + for dt in ['e', 'f', 'd']: + assert_raises(FloatingPointError, np.exp2, + np.array(value, dtype=dt)) + + @pytest.mark.skipif(IS_WASM, reason="fp errors don't work in wasm") + def test_expm1(self): + with np.errstate(all='ignore'): + in_ = [np.nan, -np.nan, np.inf, -np.inf] + out = [np.nan, np.nan, np.inf, -1.0] + for dt in ['e', 'f', 'd']: + in_arr = np.array(in_, dtype=dt) + out_arr = np.array(out, dtype=dt) + assert_equal(np.expm1(in_arr), out_arr) + + for value in [200.0, 2000.0]: + with np.errstate(over='raise'): + for dt in ['e', 'f']: + assert_raises(FloatingPointError, np.expm1, + np.array(value, dtype=dt)) + + # test to ensure no spurious FP exceptions are raised due to SIMD + INF_INVALID_ERR = [ + np.cos, np.sin, np.tan, np.arccos, np.arcsin, np.spacing, np.arctanh + ] + NEG_INVALID_ERR = [ + np.log, np.log2, np.log10, np.log1p, np.sqrt, np.arccosh, + np.arctanh + ] + ONE_INVALID_ERR = [ + np.arctanh, + ] + LTONE_INVALID_ERR = [ + np.arccosh, + ] + BYZERO_ERR = [ + np.log, np.log2, np.log10, np.reciprocal, np.arccosh + ] + + @pytest.mark.parametrize("ufunc", UFUNCS_UNARY_FP) + @pytest.mark.parametrize("dtype", ('e', 'f', 'd')) + @pytest.mark.parametrize("data, escape", ( + ([0.03], LTONE_INVALID_ERR), + ([0.03] * 32, LTONE_INVALID_ERR), + # neg + ([-1.0], NEG_INVALID_ERR), + ([-1.0] * 32, NEG_INVALID_ERR), + # flat + ([1.0], ONE_INVALID_ERR), + ([1.0] * 32, ONE_INVALID_ERR), + # zero + ([0.0], BYZERO_ERR), + ([0.0] * 32, BYZERO_ERR), + ([-0.0], BYZERO_ERR), + ([-0.0] * 32, BYZERO_ERR), + # nan + ([0.5, 0.5, 0.5, np.nan], LTONE_INVALID_ERR), + ([0.5, 0.5, 0.5, np.nan] * 32, LTONE_INVALID_ERR), + ([np.nan, 1.0, 1.0, 1.0], ONE_INVALID_ERR), + ([np.nan, 1.0, 1.0, 1.0] * 32, ONE_INVALID_ERR), + ([np.nan], []), + ([np.nan] * 32, []), + # inf + ([0.5, 0.5, 0.5, np.inf], INF_INVALID_ERR + LTONE_INVALID_ERR), + ([0.5, 0.5, 0.5, np.inf] * 32, INF_INVALID_ERR + LTONE_INVALID_ERR), + ([np.inf, 1.0, 1.0, 1.0], INF_INVALID_ERR), + ([np.inf, 1.0, 1.0, 1.0] * 32, INF_INVALID_ERR), + ([np.inf], INF_INVALID_ERR), + ([np.inf] * 32, INF_INVALID_ERR), + # ninf + ([0.5, 0.5, 0.5, -np.inf], + NEG_INVALID_ERR + INF_INVALID_ERR + LTONE_INVALID_ERR), + ([0.5, 0.5, 0.5, -np.inf] * 32, + NEG_INVALID_ERR + INF_INVALID_ERR + LTONE_INVALID_ERR), + ([-np.inf, 1.0, 1.0, 1.0], NEG_INVALID_ERR + INF_INVALID_ERR), + ([-np.inf, 1.0, 1.0, 1.0] * 32, NEG_INVALID_ERR + INF_INVALID_ERR), + ([-np.inf], NEG_INVALID_ERR + INF_INVALID_ERR), + ([-np.inf] * 32, NEG_INVALID_ERR + INF_INVALID_ERR), + )) + def test_unary_spurious_fpexception(self, ufunc, dtype, data, escape): + if escape and ufunc in escape: + return + # FIXME: NAN raises FP invalid exception: + # - ceil/float16 on MSVC:32-bit + # - spacing/float16 on almost all platforms + # - spacing/float32,float64 on Windows MSVC with VS2022 + if ufunc in (np.spacing, np.ceil) and dtype == 'e': + return + # Skip spacing tests with NaN on Windows MSVC (all dtypes) + import platform + if (ufunc == np.spacing and + platform.system() == 'Windows' and + any(np.isnan(d) if isinstance(d, (int, float)) else False for d in data)): + pytest.skip("spacing with NaN generates warnings on Windows/VS2022") + array = np.array(data, dtype=dtype) + with assert_no_warnings(): + ufunc(array) + + @pytest.mark.parametrize("dtype", ('e', 'f', 'd')) + def test_divide_spurious_fpexception(self, dtype): + dt = np.dtype(dtype) + dt_info = np.finfo(dt) + subnorm = dt_info.smallest_subnormal + # Verify a bug fix caused due to filling the remaining lanes of the + # partially loaded dividend SIMD vector with ones, which leads to + # raising an overflow warning when the divisor is denormal. + # see https://github.com/numpy/numpy/issues/25097 + with assert_no_warnings(): + np.zeros(128 + 1, dtype=dt) / subnorm + +class TestFPClass: + @pytest.mark.parametrize("stride", [-5, -4, -3, -2, -1, 1, + 2, 4, 5, 6, 7, 8, 9, 10]) + def test_fpclass(self, stride): + arr_f64 = np.array([np.nan, -np.nan, np.inf, -np.inf, -1.0, 1.0, -0.0, 0.0, 2.2251e-308, -2.2251e-308], dtype='d') + arr_f32 = np.array([np.nan, -np.nan, np.inf, -np.inf, -1.0, 1.0, -0.0, 0.0, 1.4013e-045, -1.4013e-045], dtype='f') + nan = np.array([True, True, False, False, False, False, False, False, False, False]) # noqa: E221 + inf = np.array([False, False, True, True, False, False, False, False, False, False]) # noqa: E221 + sign = np.array([False, True, False, True, True, False, True, False, False, True]) # noqa: E221 + finite = np.array([False, False, False, False, True, True, True, True, True, True]) # noqa: E221 + assert_equal(np.isnan(arr_f32[::stride]), nan[::stride]) + assert_equal(np.isnan(arr_f64[::stride]), nan[::stride]) + assert_equal(np.isinf(arr_f32[::stride]), inf[::stride]) + assert_equal(np.isinf(arr_f64[::stride]), inf[::stride]) + if platform.machine() == 'riscv64': + # On RISC-V, many operations that produce NaNs, such as converting + # a -NaN from f64 to f32, return a canonical NaN. The canonical + # NaNs are always positive. See section 11.3 NaN Generation and + # Propagation of the RISC-V Unprivileged ISA for more details. + # We disable the sign test on riscv64 for -np.nan as we + # cannot assume that its sign will be honoured in these tests. + arr_f64_rv = np.copy(arr_f64) + arr_f32_rv = np.copy(arr_f32) + arr_f64_rv[1] = -1.0 + arr_f32_rv[1] = -1.0 + assert_equal(np.signbit(arr_f32_rv[::stride]), sign[::stride]) + assert_equal(np.signbit(arr_f64_rv[::stride]), sign[::stride]) + else: + assert_equal(np.signbit(arr_f32[::stride]), sign[::stride]) + assert_equal(np.signbit(arr_f64[::stride]), sign[::stride]) + assert_equal(np.isfinite(arr_f32[::stride]), finite[::stride]) + assert_equal(np.isfinite(arr_f64[::stride]), finite[::stride]) + + @pytest.mark.parametrize("dtype", ['d', 'f']) + def test_fp_noncontiguous(self, dtype): + data = np.array([np.nan, -np.nan, np.inf, -np.inf, -1.0, + 1.0, -0.0, 0.0, 2.2251e-308, + -2.2251e-308], dtype=dtype) + nan = np.array([True, True, False, False, False, False, + False, False, False, False]) + inf = np.array([False, False, True, True, False, False, + False, False, False, False]) + sign = np.array([False, True, False, True, True, False, + True, False, False, True]) + finite = np.array([False, False, False, False, True, True, + True, True, True, True]) + out = np.ndarray(data.shape, dtype='bool') + ncontig_in = data[1::3] + ncontig_out = out[1::3] + contig_in = np.array(ncontig_in) + + if platform.machine() == 'riscv64': + # Disable the -np.nan signbit tests on riscv64. See comments in + # test_fpclass for more details. + data_rv = np.copy(data) + data_rv[1] = -1.0 + ncontig_sign_in = data_rv[1::3] + contig_sign_in = np.array(ncontig_sign_in) + else: + ncontig_sign_in = ncontig_in + contig_sign_in = contig_in + + assert_equal(ncontig_in.flags.c_contiguous, False) + assert_equal(ncontig_out.flags.c_contiguous, False) + assert_equal(contig_in.flags.c_contiguous, True) + assert_equal(ncontig_sign_in.flags.c_contiguous, False) + assert_equal(contig_sign_in.flags.c_contiguous, True) + # ncontig in, ncontig out + assert_equal(np.isnan(ncontig_in, out=ncontig_out), nan[1::3]) + assert_equal(np.isinf(ncontig_in, out=ncontig_out), inf[1::3]) + assert_equal(np.signbit(ncontig_sign_in, out=ncontig_out), sign[1::3]) + assert_equal(np.isfinite(ncontig_in, out=ncontig_out), finite[1::3]) + # contig in, ncontig out + assert_equal(np.isnan(contig_in, out=ncontig_out), nan[1::3]) + assert_equal(np.isinf(contig_in, out=ncontig_out), inf[1::3]) + assert_equal(np.signbit(contig_sign_in, out=ncontig_out), sign[1::3]) + assert_equal(np.isfinite(contig_in, out=ncontig_out), finite[1::3]) + # ncontig in, contig out + assert_equal(np.isnan(ncontig_in), nan[1::3]) + assert_equal(np.isinf(ncontig_in), inf[1::3]) + assert_equal(np.signbit(ncontig_sign_in), sign[1::3]) + assert_equal(np.isfinite(ncontig_in), finite[1::3]) + # contig in, contig out, nd stride + data_split = np.array(np.array_split(data, 2)) + nan_split = np.array(np.array_split(nan, 2)) + inf_split = np.array(np.array_split(inf, 2)) + sign_split = np.array(np.array_split(sign, 2)) + finite_split = np.array(np.array_split(finite, 2)) + assert_equal(np.isnan(data_split), nan_split) + assert_equal(np.isinf(data_split), inf_split) + if platform.machine() == 'riscv64': + data_split_rv = np.array(np.array_split(data_rv, 2)) + assert_equal(np.signbit(data_split_rv), sign_split) + else: + assert_equal(np.signbit(data_split), sign_split) + assert_equal(np.isfinite(data_split), finite_split) + +class TestLDExp: + @pytest.mark.parametrize("stride", [-4, -2, -1, 1, 2, 4]) + @pytest.mark.parametrize("dtype", ['f', 'd']) + def test_ldexp(self, dtype, stride): + mant = np.array([0.125, 0.25, 0.5, 1., 1., 2., 4., 8.], dtype=dtype) + exp = np.array([3, 2, 1, 0, 0, -1, -2, -3], dtype='i') + out = np.zeros(8, dtype=dtype) + assert_equal(np.ldexp(mant[::stride], exp[::stride], out=out[::stride]), np.ones(8, dtype=dtype)[::stride]) + assert_equal(out[::stride], np.ones(8, dtype=dtype)[::stride]) + +class TestFRExp: + @pytest.mark.parametrize("stride", [-4, -2, -1, 1, 2, 4]) + @pytest.mark.parametrize("dtype", ['f', 'd']) + @pytest.mark.skipif(not sys.platform.startswith('linux'), + reason="np.frexp gives different answers for NAN/INF on windows and linux") + @pytest.mark.xfail(IS_MUSL, reason="gh23049") + def test_frexp(self, dtype, stride): + arr = np.array([np.nan, np.nan, np.inf, -np.inf, 0.0, -0.0, 1.0, -1.0], dtype=dtype) + mant_true = np.array([np.nan, np.nan, np.inf, -np.inf, 0.0, -0.0, 0.5, -0.5], dtype=dtype) + exp_true = np.array([0, 0, 0, 0, 0, 0, 1, 1], dtype='i') + out_mant = np.ones(8, dtype=dtype) + out_exp = 2 * np.ones(8, dtype='i') + mant, exp = np.frexp(arr[::stride], out=(out_mant[::stride], out_exp[::stride])) + assert_equal(mant_true[::stride], mant) + assert_equal(exp_true[::stride], exp) + assert_equal(out_mant[::stride], mant_true[::stride]) + assert_equal(out_exp[::stride], exp_true[::stride]) + + +# func : [maxulperror, low, high] +avx_ufuncs = {'sqrt' : [1, 0., 100.], # noqa: E203 + 'absolute' : [0, -100., 100.], # noqa: E203 + 'reciprocal' : [1, 1., 100.], # noqa: E203 + 'square' : [1, -100., 100.], # noqa: E203 + 'rint' : [0, -100., 100.], # noqa: E203 + 'floor' : [0, -100., 100.], # noqa: E203 + 'ceil' : [0, -100., 100.], # noqa: E203 + 'trunc' : [0, -100., 100.]} # noqa: E203 + +class TestAVXUfuncs: + def test_avx_based_ufunc(self): + strides = np.array([-4, -3, -2, -1, 1, 2, 3, 4]) + np.random.seed(42) + for func, prop in avx_ufuncs.items(): + maxulperr = prop[0] + minval = prop[1] + maxval = prop[2] + # various array sizes to ensure masking in AVX is tested + for size in range(1, 32): + myfunc = getattr(np, func) + x_f32 = np.random.uniform(low=minval, high=maxval, + size=size).astype(np.float32) + x_f64 = x_f32.astype(np.float64) + x_f128 = x_f32.astype(np.longdouble) + y_true128 = myfunc(x_f128) + if maxulperr == 0: + assert_equal(myfunc(x_f32), y_true128.astype(np.float32)) + assert_equal(myfunc(x_f64), y_true128.astype(np.float64)) + else: + assert_array_max_ulp(myfunc(x_f32), + y_true128.astype(np.float32), + maxulp=maxulperr) + assert_array_max_ulp(myfunc(x_f64), + y_true128.astype(np.float64), + maxulp=maxulperr) + # various strides to test gather instruction + if size > 1: + y_true32 = myfunc(x_f32) + y_true64 = myfunc(x_f64) + for jj in strides: + assert_equal(myfunc(x_f64[::jj]), y_true64[::jj]) + assert_equal(myfunc(x_f32[::jj]), y_true32[::jj]) + +class TestAVXFloat32Transcendental: + def test_exp_float32(self): + np.random.seed(42) + x_f32 = np.float32(np.random.uniform(low=0.0, high=88.1, size=1000000)) + x_f64 = np.float64(x_f32) + assert_array_max_ulp(np.exp(x_f32), np.float32(np.exp(x_f64)), maxulp=3) + + def test_log_float32(self): + np.random.seed(42) + x_f32 = np.float32(np.random.uniform(low=0.0, high=1000, size=1000000)) + x_f64 = np.float64(x_f32) + assert_array_max_ulp(np.log(x_f32), np.float32(np.log(x_f64)), maxulp=4) + + def test_sincos_float32(self): + np.random.seed(42) + N = 1000000 + M = np.int_(N / 20) + index = np.random.randint(low=0, high=N, size=M) + x_f32 = np.float32(np.random.uniform(low=-100., high=100., size=N)) + if not _glibc_older_than("2.17"): + # test coverage for elements > 117435.992f for which glibc is used + # this is known to be problematic on old glibc, so skip it there + x_f32[index] = np.float32(10E+10 * np.random.rand(M)) + x_f64 = np.float64(x_f32) + assert_array_max_ulp(np.sin(x_f32), np.float32(np.sin(x_f64)), maxulp=2) + assert_array_max_ulp(np.cos(x_f32), np.float32(np.cos(x_f64)), maxulp=2) + # test aliasing(issue #17761) + tx_f32 = x_f32.copy() + assert_array_max_ulp(np.sin(x_f32, out=x_f32), np.float32(np.sin(x_f64)), maxulp=2) + assert_array_max_ulp(np.cos(tx_f32, out=tx_f32), np.float32(np.cos(x_f64)), maxulp=2) + + def test_strided_float32(self): + np.random.seed(42) + strides = np.array([-4, -3, -2, -1, 1, 2, 3, 4]) + sizes = np.arange(2, 100) + for ii in sizes: + x_f32 = np.float32(np.random.uniform(low=0.01, high=88.1, size=ii)) + x_f32_large = x_f32.copy() + x_f32_large[3:-1:4] = 120000.0 + exp_true = np.exp(x_f32) + log_true = np.log(x_f32) + sin_true = np.sin(x_f32_large) + cos_true = np.cos(x_f32_large) + for jj in strides: + assert_array_almost_equal_nulp(np.exp(x_f32[::jj]), exp_true[::jj], nulp=2) + assert_array_almost_equal_nulp(np.log(x_f32[::jj]), log_true[::jj], nulp=2) + assert_array_almost_equal_nulp(np.sin(x_f32_large[::jj]), sin_true[::jj], nulp=2) + assert_array_almost_equal_nulp(np.cos(x_f32_large[::jj]), cos_true[::jj], nulp=2) + +class TestLogAddExp(_FilterInvalids): + def test_logaddexp_values(self): + x = [1, 2, 3, 4, 5] + y = [5, 4, 3, 2, 1] + z = [6, 6, 6, 6, 6] + for dt, dec_ in zip(['f', 'd', 'g'], [6, 15, 15]): + xf = np.log(np.array(x, dtype=dt)) + yf = np.log(np.array(y, dtype=dt)) + zf = np.log(np.array(z, dtype=dt)) + assert_almost_equal(np.logaddexp(xf, yf), zf, decimal=dec_) + + def test_logaddexp_range(self): + x = [1000000, -1000000, 1000200, -1000200] + y = [1000200, -1000200, 1000000, -1000000] + z = [1000200, -1000000, 1000200, -1000000] + for dt in ['f', 'd', 'g']: + logxf = np.array(x, dtype=dt) + logyf = np.array(y, dtype=dt) + logzf = np.array(z, dtype=dt) + assert_almost_equal(np.logaddexp(logxf, logyf), logzf) + + def test_inf(self): + inf = np.inf + x = [inf, -inf, inf, -inf, inf, 1, -inf, 1] # noqa: E221 + y = [inf, inf, -inf, -inf, 1, inf, 1, -inf] # noqa: E221 + z = [inf, inf, inf, -inf, inf, inf, 1, 1] + with np.errstate(invalid='raise'): + for dt in ['f', 'd', 'g']: + logxf = np.array(x, dtype=dt) + logyf = np.array(y, dtype=dt) + logzf = np.array(z, dtype=dt) + assert_equal(np.logaddexp(logxf, logyf), logzf) + + def test_nan(self): + assert_(np.isnan(np.logaddexp(np.nan, np.inf))) + assert_(np.isnan(np.logaddexp(np.inf, np.nan))) + assert_(np.isnan(np.logaddexp(np.nan, 0))) + assert_(np.isnan(np.logaddexp(0, np.nan))) + assert_(np.isnan(np.logaddexp(np.nan, np.nan))) + + def test_reduce(self): + assert_equal(np.logaddexp.identity, -np.inf) + assert_equal(np.logaddexp.reduce([]), -np.inf) + + +class TestLog1p: + def test_log1p(self): + assert_almost_equal(ncu.log1p(0.2), ncu.log(1.2)) + assert_almost_equal(ncu.log1p(1e-6), ncu.log(1 + 1e-6)) + + def test_special(self): + with np.errstate(invalid="ignore", divide="ignore"): + assert_equal(ncu.log1p(np.nan), np.nan) + assert_equal(ncu.log1p(np.inf), np.inf) + assert_equal(ncu.log1p(-1.), -np.inf) + assert_equal(ncu.log1p(-2.), np.nan) + assert_equal(ncu.log1p(-np.inf), np.nan) + + +class TestExpm1: + def test_expm1(self): + assert_almost_equal(ncu.expm1(0.2), ncu.exp(0.2) - 1) + assert_almost_equal(ncu.expm1(1e-6), ncu.exp(1e-6) - 1) + + def test_special(self): + assert_equal(ncu.expm1(np.inf), np.inf) + assert_equal(ncu.expm1(0.), 0.) + assert_equal(ncu.expm1(-0.), -0.) + assert_equal(ncu.expm1(np.inf), np.inf) + assert_equal(ncu.expm1(-np.inf), -1.) + + def test_complex(self): + x = np.asarray(1e-12) + assert_allclose(x, ncu.expm1(x)) + x = x.astype(np.complex128) + assert_allclose(x, ncu.expm1(x)) + + +class TestHypot: + def test_simple(self): + assert_almost_equal(ncu.hypot(1, 1), ncu.sqrt(2)) + assert_almost_equal(ncu.hypot(0, 0), 0) + + def test_reduce(self): + assert_almost_equal(ncu.hypot.reduce([3.0, 4.0]), 5.0) + assert_almost_equal(ncu.hypot.reduce([3.0, 4.0, 0]), 5.0) + assert_almost_equal(ncu.hypot.reduce([9.0, 12.0, 20.0]), 25.0) + assert_equal(ncu.hypot.reduce([]), 0.0) + + +def assert_hypot_isnan(x, y): + with np.errstate(invalid='ignore'): + assert_(np.isnan(ncu.hypot(x, y)), + f"hypot({x}, {y}) is {ncu.hypot(x, y)}, not nan") + + +def assert_hypot_isinf(x, y): + with np.errstate(invalid='ignore'): + assert_(np.isinf(ncu.hypot(x, y)), + f"hypot({x}, {y}) is {ncu.hypot(x, y)}, not inf") + + +class TestHypotSpecialValues: + def test_nan_outputs(self): + assert_hypot_isnan(np.nan, np.nan) + assert_hypot_isnan(np.nan, 1) + + def test_nan_outputs2(self): + assert_hypot_isinf(np.nan, np.inf) + assert_hypot_isinf(np.inf, np.nan) + assert_hypot_isinf(np.inf, 0) + assert_hypot_isinf(0, np.inf) + assert_hypot_isinf(np.inf, np.inf) + assert_hypot_isinf(np.inf, 23.0) + + def test_no_fpe(self): + assert_no_warnings(ncu.hypot, np.inf, 0) + + +def assert_arctan2_isnan(x, y): + assert_(np.isnan(ncu.arctan2(x, y)), f"arctan({x}, {y}) is {ncu.arctan2(x, y)}, not nan") + + +def assert_arctan2_ispinf(x, y): + assert_((np.isinf(ncu.arctan2(x, y)) and ncu.arctan2(x, y) > 0), f"arctan({x}, {y}) is {ncu.arctan2(x, y)}, not +inf") + + +def assert_arctan2_isninf(x, y): + assert_((np.isinf(ncu.arctan2(x, y)) and ncu.arctan2(x, y) < 0), f"arctan({x}, {y}) is {ncu.arctan2(x, y)}, not -inf") + + +def assert_arctan2_ispzero(x, y): + assert_((ncu.arctan2(x, y) == 0 and not np.signbit(ncu.arctan2(x, y))), f"arctan({x}, {y}) is {ncu.arctan2(x, y)}, not +0") + + +def assert_arctan2_isnzero(x, y): + assert_((ncu.arctan2(x, y) == 0 and np.signbit(ncu.arctan2(x, y))), f"arctan({x}, {y}) is {ncu.arctan2(x, y)}, not -0") + + +class TestArctan2SpecialValues: + def test_one_one(self): + # atan2(1, 1) returns pi/4. + assert_almost_equal(ncu.arctan2(1, 1), 0.25 * np.pi) + assert_almost_equal(ncu.arctan2(-1, 1), -0.25 * np.pi) + assert_almost_equal(ncu.arctan2(1, -1), 0.75 * np.pi) + + def test_zero_nzero(self): + # atan2(+-0, -0) returns +-pi. + assert_almost_equal(ncu.arctan2(ncu.PZERO, ncu.NZERO), np.pi) + assert_almost_equal(ncu.arctan2(ncu.NZERO, ncu.NZERO), -np.pi) + + def test_zero_pzero(self): + # atan2(+-0, +0) returns +-0. + assert_arctan2_ispzero(ncu.PZERO, ncu.PZERO) + assert_arctan2_isnzero(ncu.NZERO, ncu.PZERO) + + def test_zero_negative(self): + # atan2(+-0, x) returns +-pi for x < 0. + assert_almost_equal(ncu.arctan2(ncu.PZERO, -1), np.pi) + assert_almost_equal(ncu.arctan2(ncu.NZERO, -1), -np.pi) + + def test_zero_positive(self): + # atan2(+-0, x) returns +-0 for x > 0. + assert_arctan2_ispzero(ncu.PZERO, 1) + assert_arctan2_isnzero(ncu.NZERO, 1) + + def test_positive_zero(self): + # atan2(y, +-0) returns +pi/2 for y > 0. + assert_almost_equal(ncu.arctan2(1, ncu.PZERO), 0.5 * np.pi) + assert_almost_equal(ncu.arctan2(1, ncu.NZERO), 0.5 * np.pi) + + def test_negative_zero(self): + # atan2(y, +-0) returns -pi/2 for y < 0. + assert_almost_equal(ncu.arctan2(-1, ncu.PZERO), -0.5 * np.pi) + assert_almost_equal(ncu.arctan2(-1, ncu.NZERO), -0.5 * np.pi) + + def test_any_ninf(self): + # atan2(+-y, -infinity) returns +-pi for finite y > 0. + assert_almost_equal(ncu.arctan2(1, -np.inf), np.pi) + assert_almost_equal(ncu.arctan2(-1, -np.inf), -np.pi) + + def test_any_pinf(self): + # atan2(+-y, +infinity) returns +-0 for finite y > 0. + assert_arctan2_ispzero(1, np.inf) + assert_arctan2_isnzero(-1, np.inf) + + def test_inf_any(self): + # atan2(+-infinity, x) returns +-pi/2 for finite x. + assert_almost_equal(ncu.arctan2( np.inf, 1), 0.5 * np.pi) + assert_almost_equal(ncu.arctan2(-np.inf, 1), -0.5 * np.pi) + + def test_inf_ninf(self): + # atan2(+-infinity, -infinity) returns +-3*pi/4. + assert_almost_equal(ncu.arctan2( np.inf, -np.inf), 0.75 * np.pi) + assert_almost_equal(ncu.arctan2(-np.inf, -np.inf), -0.75 * np.pi) + + def test_inf_pinf(self): + # atan2(+-infinity, +infinity) returns +-pi/4. + assert_almost_equal(ncu.arctan2( np.inf, np.inf), 0.25 * np.pi) + assert_almost_equal(ncu.arctan2(-np.inf, np.inf), -0.25 * np.pi) + + def test_nan_any(self): + # atan2(nan, x) returns nan for any x, including inf + assert_arctan2_isnan(np.nan, np.inf) + assert_arctan2_isnan(np.inf, np.nan) + assert_arctan2_isnan(np.nan, np.nan) + + +class TestLdexp: + def _check_ldexp(self, tp): + assert_almost_equal(ncu.ldexp(np.array(2., np.float32), + np.array(3, tp)), 16.) + assert_almost_equal(ncu.ldexp(np.array(2., np.float64), + np.array(3, tp)), 16.) + assert_almost_equal(ncu.ldexp(np.array(2., np.longdouble), + np.array(3, tp)), 16.) + + def test_ldexp(self): + # The default Python int type should work + assert_almost_equal(ncu.ldexp(2., 3), 16.) + # The following int types should all be accepted + self._check_ldexp(np.int8) + self._check_ldexp(np.int16) + self._check_ldexp(np.int32) + self._check_ldexp('i') + self._check_ldexp('l') + + def test_ldexp_overflow(self): + # silence warning emitted on overflow + with np.errstate(over="ignore"): + imax = np.iinfo(np.dtype('l')).max + imin = np.iinfo(np.dtype('l')).min + assert_equal(ncu.ldexp(2., imax), np.inf) + assert_equal(ncu.ldexp(2., imin), 0) + + +class TestMaximum(_FilterInvalids): + def test_reduce(self): + dflt = np.typecodes['AllFloat'] + dint = np.typecodes['AllInteger'] + seq1 = np.arange(11) + seq2 = seq1[::-1] + func = np.maximum.reduce + for dt in dint: + tmp1 = seq1.astype(dt) + tmp2 = seq2.astype(dt) + assert_equal(func(tmp1), 10) + assert_equal(func(tmp2), 10) + for dt in dflt: + tmp1 = seq1.astype(dt) + tmp2 = seq2.astype(dt) + assert_equal(func(tmp1), 10) + assert_equal(func(tmp2), 10) + tmp1[::2] = np.nan + tmp2[::2] = np.nan + assert_equal(func(tmp1), np.nan) + assert_equal(func(tmp2), np.nan) + + def test_reduce_complex(self): + assert_equal(np.maximum.reduce([1, 2j]), 1) + assert_equal(np.maximum.reduce([1 + 3j, 2j]), 1 + 3j) + + def test_float_nans(self): + nan = np.nan + arg1 = np.array([0, nan, nan]) + arg2 = np.array([nan, 0, nan]) + out = np.array([nan, nan, nan]) + assert_equal(np.maximum(arg1, arg2), out) + + def test_object_nans(self): + # Multiple checks to give this a chance to + # fail if cmp is used instead of rich compare. + # Failure cannot be guaranteed. + for i in range(1): + x = np.array(float('nan'), object) + y = 1.0 + z = np.array(float('nan'), object) + assert_(np.maximum(x, y) == 1.0) + assert_(np.maximum(z, y) == 1.0) + + def test_complex_nans(self): + nan = np.nan + for cnan in [complex(nan, 0), complex(0, nan), complex(nan, nan)]: + arg1 = np.array([0, cnan, cnan], dtype=complex) + arg2 = np.array([cnan, 0, cnan], dtype=complex) + out = np.array([nan, nan, nan], dtype=complex) + assert_equal(np.maximum(arg1, arg2), out) + + def test_object_array(self): + arg1 = np.arange(5, dtype=object) + arg2 = arg1 + 1 + assert_equal(np.maximum(arg1, arg2), arg2) + + def test_strided_array(self): + arr1 = np.array([-4.0, 1.0, 10.0, 0.0, np.nan, -np.nan, np.inf, -np.inf]) + arr2 = np.array([-2.0, -1.0, np.nan, 1.0, 0.0, np.nan, 1.0, -3.0]) # noqa: E221 + maxtrue = np.array([-2.0, 1.0, np.nan, 1.0, np.nan, np.nan, np.inf, -3.0]) + out = np.ones(8) + out_maxtrue = np.array([-2.0, 1.0, 1.0, 10.0, 1.0, 1.0, np.nan, 1.0]) + assert_equal(np.maximum(arr1, arr2), maxtrue) + assert_equal(np.maximum(arr1[::2], arr2[::2]), maxtrue[::2]) + assert_equal(np.maximum(arr1[:4:], arr2[::2]), np.array([-2.0, np.nan, 10.0, 1.0])) + assert_equal(np.maximum(arr1[::3], arr2[:3:]), np.array([-2.0, 0.0, np.nan])) + assert_equal(np.maximum(arr1[:6:2], arr2[::3], out=out[::3]), np.array([-2.0, 10., np.nan])) + assert_equal(out, out_maxtrue) + + def test_precision(self): + dtypes = [np.float16, np.float32, np.float64, np.longdouble] + + for dt in dtypes: + dtmin = np.finfo(dt).min + dtmax = np.finfo(dt).max + d1 = dt(0.1) + d1_next = np.nextafter(d1, np.inf) + + test_cases = [ + # v1 v2 expected + (dtmin, -np.inf, dtmin), + (dtmax, -np.inf, dtmax), + (d1, d1_next, d1_next), + (dtmax, np.nan, np.nan), + ] + + for v1, v2, expected in test_cases: + assert_equal(np.maximum([v1], [v2]), [expected]) + assert_equal(np.maximum.reduce([v1, v2]), expected) + + +class TestMinimum(_FilterInvalids): + def test_reduce(self): + dflt = np.typecodes['AllFloat'] + dint = np.typecodes['AllInteger'] + seq1 = np.arange(11) + seq2 = seq1[::-1] + func = np.minimum.reduce + for dt in dint: + tmp1 = seq1.astype(dt) + tmp2 = seq2.astype(dt) + assert_equal(func(tmp1), 0) + assert_equal(func(tmp2), 0) + for dt in dflt: + tmp1 = seq1.astype(dt) + tmp2 = seq2.astype(dt) + assert_equal(func(tmp1), 0) + assert_equal(func(tmp2), 0) + tmp1[::2] = np.nan + tmp2[::2] = np.nan + assert_equal(func(tmp1), np.nan) + assert_equal(func(tmp2), np.nan) + + def test_reduce_complex(self): + assert_equal(np.minimum.reduce([1, 2j]), 2j) + assert_equal(np.minimum.reduce([1 + 3j, 2j]), 2j) + + def test_float_nans(self): + nan = np.nan + arg1 = np.array([0, nan, nan]) + arg2 = np.array([nan, 0, nan]) + out = np.array([nan, nan, nan]) + assert_equal(np.minimum(arg1, arg2), out) + + def test_object_nans(self): + # Multiple checks to give this a chance to + # fail if cmp is used instead of rich compare. + # Failure cannot be guaranteed. + for i in range(1): + x = np.array(float('nan'), object) + y = 1.0 + z = np.array(float('nan'), object) + assert_(np.minimum(x, y) == 1.0) + assert_(np.minimum(z, y) == 1.0) + + def test_complex_nans(self): + nan = np.nan + for cnan in [complex(nan, 0), complex(0, nan), complex(nan, nan)]: + arg1 = np.array([0, cnan, cnan], dtype=complex) + arg2 = np.array([cnan, 0, cnan], dtype=complex) + out = np.array([nan, nan, nan], dtype=complex) + assert_equal(np.minimum(arg1, arg2), out) + + def test_object_array(self): + arg1 = np.arange(5, dtype=object) + arg2 = arg1 + 1 + assert_equal(np.minimum(arg1, arg2), arg1) + + def test_strided_array(self): + arr1 = np.array([-4.0, 1.0, 10.0, 0.0, np.nan, -np.nan, np.inf, -np.inf]) + arr2 = np.array([-2.0, -1.0, np.nan, 1.0, 0.0, np.nan, 1.0, -3.0]) + mintrue = np.array([-4.0, -1.0, np.nan, 0.0, np.nan, np.nan, 1.0, -np.inf]) + out = np.ones(8) + out_mintrue = np.array([-4.0, 1.0, 1.0, 1.0, 1.0, 1.0, np.nan, 1.0]) + assert_equal(np.minimum(arr1, arr2), mintrue) + assert_equal(np.minimum(arr1[::2], arr2[::2]), mintrue[::2]) + assert_equal(np.minimum(arr1[:4:], arr2[::2]), np.array([-4.0, np.nan, 0.0, 0.0])) + assert_equal(np.minimum(arr1[::3], arr2[:3:]), np.array([-4.0, -1.0, np.nan])) + assert_equal(np.minimum(arr1[:6:2], arr2[::3], out=out[::3]), np.array([-4.0, 1.0, np.nan])) + assert_equal(out, out_mintrue) + + def test_precision(self): + dtypes = [np.float16, np.float32, np.float64, np.longdouble] + + for dt in dtypes: + dtmin = np.finfo(dt).min + dtmax = np.finfo(dt).max + d1 = dt(0.1) + d1_next = np.nextafter(d1, np.inf) + + test_cases = [ + # v1 v2 expected + (dtmin, np.inf, dtmin), + (dtmax, np.inf, dtmax), + (d1, d1_next, d1), + (dtmin, np.nan, np.nan), + ] + + for v1, v2, expected in test_cases: + assert_equal(np.minimum([v1], [v2]), [expected]) + assert_equal(np.minimum.reduce([v1, v2]), expected) + + +class TestFmax(_FilterInvalids): + def test_reduce(self): + dflt = np.typecodes['AllFloat'] + dint = np.typecodes['AllInteger'] + seq1 = np.arange(11) + seq2 = seq1[::-1] + func = np.fmax.reduce + for dt in dint: + tmp1 = seq1.astype(dt) + tmp2 = seq2.astype(dt) + assert_equal(func(tmp1), 10) + assert_equal(func(tmp2), 10) + for dt in dflt: + tmp1 = seq1.astype(dt) + tmp2 = seq2.astype(dt) + assert_equal(func(tmp1), 10) + assert_equal(func(tmp2), 10) + tmp1[::2] = np.nan + tmp2[::2] = np.nan + assert_equal(func(tmp1), 9) + assert_equal(func(tmp2), 9) + + def test_reduce_complex(self): + assert_equal(np.fmax.reduce([1, 2j]), 1) + assert_equal(np.fmax.reduce([1 + 3j, 2j]), 1 + 3j) + + def test_float_nans(self): + nan = np.nan + arg1 = np.array([0, nan, nan]) + arg2 = np.array([nan, 0, nan]) + out = np.array([0, 0, nan]) + assert_equal(np.fmax(arg1, arg2), out) + + def test_complex_nans(self): + nan = np.nan + for cnan in [complex(nan, 0), complex(0, nan), complex(nan, nan)]: + arg1 = np.array([0, cnan, cnan], dtype=complex) + arg2 = np.array([cnan, 0, cnan], dtype=complex) + out = np.array([0, 0, nan], dtype=complex) + assert_equal(np.fmax(arg1, arg2), out) + + def test_precision(self): + dtypes = [np.float16, np.float32, np.float64, np.longdouble] + + for dt in dtypes: + dtmin = np.finfo(dt).min + dtmax = np.finfo(dt).max + d1 = dt(0.1) + d1_next = np.nextafter(d1, np.inf) + + test_cases = [ + # v1 v2 expected + (dtmin, -np.inf, dtmin), + (dtmax, -np.inf, dtmax), + (d1, d1_next, d1_next), + (dtmax, np.nan, dtmax), + ] + + for v1, v2, expected in test_cases: + assert_equal(np.fmax([v1], [v2]), [expected]) + assert_equal(np.fmax.reduce([v1, v2]), expected) + + +class TestFmin(_FilterInvalids): + def test_reduce(self): + dflt = np.typecodes['AllFloat'] + dint = np.typecodes['AllInteger'] + seq1 = np.arange(11) + seq2 = seq1[::-1] + func = np.fmin.reduce + for dt in dint: + tmp1 = seq1.astype(dt) + tmp2 = seq2.astype(dt) + assert_equal(func(tmp1), 0) + assert_equal(func(tmp2), 0) + for dt in dflt: + tmp1 = seq1.astype(dt) + tmp2 = seq2.astype(dt) + assert_equal(func(tmp1), 0) + assert_equal(func(tmp2), 0) + tmp1[::2] = np.nan + tmp2[::2] = np.nan + assert_equal(func(tmp1), 1) + assert_equal(func(tmp2), 1) + + def test_reduce_complex(self): + assert_equal(np.fmin.reduce([1, 2j]), 2j) + assert_equal(np.fmin.reduce([1 + 3j, 2j]), 2j) + + def test_float_nans(self): + nan = np.nan + arg1 = np.array([0, nan, nan]) + arg2 = np.array([nan, 0, nan]) + out = np.array([0, 0, nan]) + assert_equal(np.fmin(arg1, arg2), out) + + def test_complex_nans(self): + nan = np.nan + for cnan in [complex(nan, 0), complex(0, nan), complex(nan, nan)]: + arg1 = np.array([0, cnan, cnan], dtype=complex) + arg2 = np.array([cnan, 0, cnan], dtype=complex) + out = np.array([0, 0, nan], dtype=complex) + assert_equal(np.fmin(arg1, arg2), out) + + def test_precision(self): + dtypes = [np.float16, np.float32, np.float64, np.longdouble] + + for dt in dtypes: + dtmin = np.finfo(dt).min + dtmax = np.finfo(dt).max + d1 = dt(0.1) + d1_next = np.nextafter(d1, np.inf) + + test_cases = [ + # v1 v2 expected + (dtmin, np.inf, dtmin), + (dtmax, np.inf, dtmax), + (d1, d1_next, d1), + (dtmin, np.nan, dtmin), + ] + + for v1, v2, expected in test_cases: + assert_equal(np.fmin([v1], [v2]), [expected]) + assert_equal(np.fmin.reduce([v1, v2]), expected) + + +class TestBool: + def test_exceptions(self): + a = np.ones(1, dtype=np.bool) + assert_raises(TypeError, np.negative, a) + assert_raises(TypeError, np.positive, a) + assert_raises(TypeError, np.subtract, a, a) + + def test_truth_table_logical(self): + # 2, 3 and 4 serves as true values + input1 = [0, 0, 3, 2] + input2 = [0, 4, 0, 2] + + typecodes = (np.typecodes['AllFloat'] + + np.typecodes['AllInteger'] + + '?') # boolean + for dtype in map(np.dtype, typecodes): + arg1 = np.asarray(input1, dtype=dtype) + arg2 = np.asarray(input2, dtype=dtype) + + # OR + out = [False, True, True, True] + for func in (np.logical_or, np.maximum): + assert_equal(func(arg1, arg2).astype(bool), out) + # AND + out = [False, False, False, True] + for func in (np.logical_and, np.minimum): + assert_equal(func(arg1, arg2).astype(bool), out) + # XOR + out = [False, True, True, False] + for func in (np.logical_xor, np.not_equal): + assert_equal(func(arg1, arg2).astype(bool), out) + + def test_truth_table_bitwise(self): + arg1 = [False, False, True, True] + arg2 = [False, True, False, True] + + out = [False, True, True, True] + assert_equal(np.bitwise_or(arg1, arg2), out) + + out = [False, False, False, True] + assert_equal(np.bitwise_and(arg1, arg2), out) + + out = [False, True, True, False] + assert_equal(np.bitwise_xor(arg1, arg2), out) + + def test_reduce(self): + none = np.array([0, 0, 0, 0], bool) + some = np.array([1, 0, 1, 1], bool) + every = np.array([1, 1, 1, 1], bool) + empty = np.array([], bool) + + arrs = [none, some, every, empty] + + for arr in arrs: + assert_equal(np.logical_and.reduce(arr), all(arr)) + + for arr in arrs: + assert_equal(np.logical_or.reduce(arr), any(arr)) + + for arr in arrs: + assert_equal(np.logical_xor.reduce(arr), arr.sum() % 2 == 1) + + +class TestBitwiseUFuncs: + + _all_ints_bits = [ + np.dtype(c).itemsize * 8 for c in np.typecodes["AllInteger"]] + bitwise_types = [ + np.dtype(c) for c in '?' + np.typecodes["AllInteger"] + 'O'] + bitwise_bits = [ + 2, # boolean type + *_all_ints_bits, # All integers + max(_all_ints_bits) + 1, # Object_ type + ] + + def test_values(self): + for dt in self.bitwise_types: + zeros = np.array([0], dtype=dt) + ones = np.array([-1]).astype(dt) + msg = f"dt = '{dt.char}'" + + assert_equal(np.bitwise_not(zeros), ones, err_msg=msg) + assert_equal(np.bitwise_not(ones), zeros, err_msg=msg) + + assert_equal(np.bitwise_or(zeros, zeros), zeros, err_msg=msg) + assert_equal(np.bitwise_or(zeros, ones), ones, err_msg=msg) + assert_equal(np.bitwise_or(ones, zeros), ones, err_msg=msg) + assert_equal(np.bitwise_or(ones, ones), ones, err_msg=msg) + + assert_equal(np.bitwise_xor(zeros, zeros), zeros, err_msg=msg) + assert_equal(np.bitwise_xor(zeros, ones), ones, err_msg=msg) + assert_equal(np.bitwise_xor(ones, zeros), ones, err_msg=msg) + assert_equal(np.bitwise_xor(ones, ones), zeros, err_msg=msg) + + assert_equal(np.bitwise_and(zeros, zeros), zeros, err_msg=msg) + assert_equal(np.bitwise_and(zeros, ones), zeros, err_msg=msg) + assert_equal(np.bitwise_and(ones, zeros), zeros, err_msg=msg) + assert_equal(np.bitwise_and(ones, ones), ones, err_msg=msg) + + def test_types(self): + for dt in self.bitwise_types: + zeros = np.array([0], dtype=dt) + ones = np.array([-1]).astype(dt) + msg = f"dt = '{dt.char}'" + + assert_(np.bitwise_not(zeros).dtype == dt, msg) + assert_(np.bitwise_or(zeros, zeros).dtype == dt, msg) + assert_(np.bitwise_xor(zeros, zeros).dtype == dt, msg) + assert_(np.bitwise_and(zeros, zeros).dtype == dt, msg) + + def test_identity(self): + assert_(np.bitwise_or.identity == 0, 'bitwise_or') + assert_(np.bitwise_xor.identity == 0, 'bitwise_xor') + assert_(np.bitwise_and.identity == -1, 'bitwise_and') + + def test_reduction(self): + binary_funcs = (np.bitwise_or, np.bitwise_xor, np.bitwise_and) + + for dt in self.bitwise_types: + zeros = np.array([0], dtype=dt) + ones = np.array([-1]).astype(dt) + for f in binary_funcs: + msg = f"dt: '{dt}', f: '{f}'" + assert_equal(f.reduce(zeros), zeros, err_msg=msg) + assert_equal(f.reduce(ones), ones, err_msg=msg) + + # Test empty reduction, no object dtype + for dt in self.bitwise_types[:-1]: + # No object array types + empty = np.array([], dtype=dt) + for f in binary_funcs: + msg = f"dt: '{dt}', f: '{f}'" + tgt = np.array(f.identity).astype(dt) + res = f.reduce(empty) + assert_equal(res, tgt, err_msg=msg) + assert_(res.dtype == tgt.dtype, msg) + + # Empty object arrays use the identity. Note that the types may + # differ, the actual type used is determined by the assign_identity + # function and is not the same as the type returned by the identity + # method. + for f in binary_funcs: + msg = f"dt: '{f}'" + empty = np.array([], dtype=object) + tgt = f.identity + res = f.reduce(empty) + assert_equal(res, tgt, err_msg=msg) + + # Non-empty object arrays do not use the identity + for f in binary_funcs: + msg = f"dt: '{f}'" + btype = np.array([True], dtype=object) + assert_(type(f.reduce(btype)) is bool, msg) + + @pytest.mark.parametrize("input_dtype_obj, bitsize", + zip(bitwise_types, bitwise_bits)) + def test_bitwise_count(self, input_dtype_obj, bitsize): + input_dtype = input_dtype_obj.type + + for i in range(1, bitsize): + num = 2**i - 1 + msg = f"bitwise_count for {num}" + assert i == np.bitwise_count(input_dtype(num)), msg + if np.issubdtype( + input_dtype, np.signedinteger) or input_dtype == np.object_: + assert i == np.bitwise_count(input_dtype(-num)), msg + + a = np.array([2**i - 1 for i in range(1, bitsize)], dtype=input_dtype) + bitwise_count_a = np.bitwise_count(a) + expected = np.arange(1, bitsize, dtype=input_dtype) + + msg = f"array bitwise_count for {input_dtype}" + assert all(bitwise_count_a == expected), msg + + +class TestInt: + def test_logical_not(self): + x = np.ones(10, dtype=np.int16) + o = np.ones(10 * 2, dtype=bool) + tgt = o.copy() + tgt[::2] = False + os = o[::2] + assert_array_equal(np.logical_not(x, out=os), False) + assert_array_equal(o, tgt) + + +class TestFloatingPoint: + def test_floating_point(self): + assert_equal(ncu.FLOATING_POINT_SUPPORT, 1) + + +class TestDegrees: + def test_degrees(self): + assert_almost_equal(ncu.degrees(np.pi), 180.0) + assert_almost_equal(ncu.degrees(-0.5 * np.pi), -90.0) + + +class TestRadians: + def test_radians(self): + assert_almost_equal(ncu.radians(180.0), np.pi) + assert_almost_equal(ncu.radians(-90.0), -0.5 * np.pi) + + +class TestHeavside: + def test_heaviside(self): + x = np.array([[-30.0, -0.1, 0.0, 0.2], [7.5, np.nan, np.inf, -np.inf]]) + expectedhalf = np.array([[0.0, 0.0, 0.5, 1.0], [1.0, np.nan, 1.0, 0.0]]) + expected1 = expectedhalf.copy() + expected1[0, 2] = 1 + + h = ncu.heaviside(x, 0.5) + assert_equal(h, expectedhalf) + + h = ncu.heaviside(x, 1.0) + assert_equal(h, expected1) + + x = x.astype(np.float32) + + h = ncu.heaviside(x, np.float32(0.5)) + assert_equal(h, expectedhalf.astype(np.float32)) + + h = ncu.heaviside(x, np.float32(1.0)) + assert_equal(h, expected1.astype(np.float32)) + + +class TestSign: + def test_sign(self): + a = np.array([np.inf, -np.inf, np.nan, 0.0, 3.0, -3.0]) + out = np.zeros(a.shape) + tgt = np.array([1., -1., np.nan, 0.0, 1.0, -1.0]) + + with np.errstate(invalid='ignore'): + res = ncu.sign(a) + assert_equal(res, tgt) + res = ncu.sign(a, out) + assert_equal(res, tgt) + assert_equal(out, tgt) + + def test_sign_complex(self): + a = np.array([ + np.inf, -np.inf, complex(0, np.inf), complex(0, -np.inf), + complex(np.inf, np.inf), complex(np.inf, -np.inf), # nan + np.nan, complex(0, np.nan), complex(np.nan, np.nan), # nan + 0.0, # 0. + 3.0, -3.0, -2j, 3.0 + 4.0j, -8.0 + 6.0j + ]) + out = np.zeros(a.shape, a.dtype) + tgt = np.array([ + 1., -1., 1j, -1j, + ] + [complex(np.nan, np.nan)] * 5 + [ + 0.0, + 1.0, -1.0, -1j, 0.6 + 0.8j, -0.8 + 0.6j]) + + with np.errstate(invalid='ignore'): + res = ncu.sign(a) + assert_equal(res, tgt) + res = ncu.sign(a, out) + assert_(res is out) + assert_equal(res, tgt) + + def test_sign_dtype_object(self): + # In reference to github issue #6229 + + foo = np.array([-.1, 0, .1]) + a = np.sign(foo.astype(object)) + b = np.sign(foo) + + assert_array_equal(a, b) + + def test_sign_dtype_nan_object(self): + # In reference to github issue #6229 + def test_nan(): + foo = np.array([np.nan]) + # FIXME: a not used + a = np.sign(foo.astype(object)) + + assert_raises(TypeError, test_nan) + +class TestMinMax: + def test_minmax_blocked(self): + # simd tests on max/min, test all alignments, slow but important + # for 2 * vz + 2 * (vs - 1) + 1 (unrolled once) + for dt, sz in [(np.float32, 15), (np.float64, 7)]: + for out, inp, msg in _gen_alignment_data(dtype=dt, type='unary', + max_size=sz): + for i in range(inp.size): + inp[:] = np.arange(inp.size, dtype=dt) + inp[i] = np.nan + emsg = lambda: f'{inp!r}\n{msg}' + with warnings.catch_warnings(): + warnings.filterwarnings( + 'ignore', + "invalid value encountered in reduce", + RuntimeWarning) + assert_(np.isnan(inp.max()), msg=emsg) + assert_(np.isnan(inp.min()), msg=emsg) + + inp[i] = 1e10 + assert_equal(inp.max(), 1e10, err_msg=msg) + inp[i] = -1e10 + assert_equal(inp.min(), -1e10, err_msg=msg) + + def test_lower_align(self): + # check data that is not aligned to element size + # i.e doubles are aligned to 4 bytes on i386 + d = np.zeros(23 * 8, dtype=np.int8)[4:-4].view(np.float64) + assert_equal(d.max(), d[0]) + assert_equal(d.min(), d[0]) + + def test_reduce_reorder(self): + # gh 10370, 11029 Some compilers reorder the call to npy_getfloatstatus + # and put it before the call to an intrinsic function that causes + # invalid status to be set. Also make sure warnings are not emitted + for n in (2, 4, 8, 16, 32): + for dt in (np.float32, np.float16, np.complex64): + for r in np.diagflat(np.array([np.nan] * n, dtype=dt)): + assert_equal(np.min(r), np.nan) + + def test_minimize_no_warns(self): + a = np.minimum(np.nan, 1) + assert_equal(a, np.nan) + + +class TestAbsoluteNegative: + def test_abs_neg_blocked(self): + # simd tests on abs, test all alignments for vz + 2 * (vs - 1) + 1 + for dt, sz in [(np.float32, 11), (np.float64, 5)]: + for out, inp, msg in _gen_alignment_data(dtype=dt, type='unary', + max_size=sz): + tgt = [ncu.absolute(i) for i in inp] + np.absolute(inp, out=out) + assert_equal(out, tgt, err_msg=msg) + assert_((out >= 0).all()) + + tgt = [-1 * (i) for i in inp] + np.negative(inp, out=out) + assert_equal(out, tgt, err_msg=msg) + + for v in [np.nan, -np.inf, np.inf]: + for i in range(inp.size): + d = np.arange(inp.size, dtype=dt) + inp[:] = -d + inp[i] = v + d[i] = -v if v == -np.inf else v + assert_array_equal(np.abs(inp), d, err_msg=msg) + np.abs(inp, out=out) + assert_array_equal(out, d, err_msg=msg) + + assert_array_equal(-inp, -1 * inp, err_msg=msg) + d = -1 * inp + np.negative(inp, out=out) + assert_array_equal(out, d, err_msg=msg) + + def test_lower_align(self): + # check data that is not aligned to element size + # i.e doubles are aligned to 4 bytes on i386 + d = np.zeros(23 * 8, dtype=np.int8)[4:-4].view(np.float64) + assert_equal(np.abs(d), d) + assert_equal(np.negative(d), -d) + np.negative(d, out=d) + np.negative(np.ones_like(d), out=d) + np.abs(d, out=d) + np.abs(np.ones_like(d), out=d) + + @pytest.mark.parametrize("dtype", ['d', 'f', 'int32', 'int64']) + @pytest.mark.parametrize("big", [True, False]) + def test_noncontiguous(self, dtype, big): + data = np.array([-1.0, 1.0, -0.0, 0.0, 2.2251e-308, -2.5, 2.5, -6, + 6, -2.2251e-308, -8, 10], dtype=dtype) + expect = np.array([1.0, -1.0, 0.0, -0.0, -2.2251e-308, 2.5, -2.5, 6, + -6, 2.2251e-308, 8, -10], dtype=dtype) + if big: + data = np.repeat(data, 10) + expect = np.repeat(expect, 10) + out = np.ndarray(data.shape, dtype=dtype) + ncontig_in = data[1::2] + ncontig_out = out[1::2] + contig_in = np.array(ncontig_in) + # contig in, contig out + assert_array_equal(np.negative(contig_in), expect[1::2]) + # contig in, ncontig out + assert_array_equal(np.negative(contig_in, out=ncontig_out), + expect[1::2]) + # ncontig in, contig out + assert_array_equal(np.negative(ncontig_in), expect[1::2]) + # ncontig in, ncontig out + assert_array_equal(np.negative(ncontig_in, out=ncontig_out), + expect[1::2]) + # contig in, contig out, nd stride + data_split = np.array(np.array_split(data, 2)) + expect_split = np.array(np.array_split(expect, 2)) + assert_equal(np.negative(data_split), expect_split) + + +class TestPositive: + def test_valid(self): + valid_dtypes = [int, float, complex, object] + for dtype in valid_dtypes: + x = np.arange(5, dtype=dtype) + result = np.positive(x) + assert_equal(x, result, err_msg=str(dtype)) + + def test_invalid(self): + with assert_raises(TypeError): + np.positive(True) + with assert_raises(TypeError): + np.positive(np.datetime64('2000-01-01')) + with assert_raises(TypeError): + np.positive(np.array(['foo'], dtype=str)) + with assert_raises(TypeError): + np.positive(np.array(['bar'], dtype=object)) + + +class TestSpecialMethods: + def test_wrap(self): + + class with_wrap: + def __array__(self, dtype=None, copy=None): + return np.zeros(1) + + def __array_wrap__(self, arr, context, return_scalar): + r = with_wrap() + r.arr = arr + r.context = context + return r + + a = with_wrap() + x = ncu.minimum(a, a) + assert_equal(x.arr, np.zeros(1)) + func, args, i = x.context + assert_(func is ncu.minimum) + assert_equal(len(args), 2) + assert_equal(args[0], a) + assert_equal(args[1], a) + assert_equal(i, 0) + + def test_wrap_out(self): + # Calling convention for out should not affect how special methods are + # called + + class StoreArrayPrepareWrap(np.ndarray): + _wrap_args = None + _prepare_args = None + + def __new__(cls): + return np.zeros(()).view(cls) + + def __array_wrap__(self, obj, context, return_scalar): + self._wrap_args = context[1] + return obj + + @property + def args(self): + # We need to ensure these are fetched at the same time, before + # any other ufuncs are called by the assertions + return self._wrap_args + + def __repr__(self): + return "a" # for short test output + + def do_test(f_call, f_expected): + a = StoreArrayPrepareWrap() + + f_call(a) + + w = a.args + expected = f_expected(a) + try: + assert w == expected + except AssertionError as e: + # assert_equal produces truly useless error messages + raise AssertionError("\n".join([ + "Bad arguments passed in ufunc call", + f" expected: {expected}", + f" __array_wrap__ got: {w}" + ])) + + # method not on the out argument + do_test(lambda a: np.add(a, 0), lambda a: (a, 0)) + do_test(lambda a: np.add(a, 0, None), lambda a: (a, 0)) + do_test(lambda a: np.add(a, 0, out=None), lambda a: (a, 0)) + do_test(lambda a: np.add(a, 0, out=(None,)), lambda a: (a, 0)) + + # method on the out argument + do_test(lambda a: np.add(0, 0, a), lambda a: (0, 0, a)) + do_test(lambda a: np.add(0, 0, out=a), lambda a: (0, 0, a)) + do_test(lambda a: np.add(0, 0, out=(a,)), lambda a: (0, 0, a)) + + # Also check the where mask handling: + out = np.zeros([1], dtype=float) + do_test(lambda a: np.add(a, 0, where=False, out=None), lambda a: (a, 0)) + do_test(lambda a: np.add(0, 0, a, where=False), lambda a: (0, 0, a)) + + def test_wrap_with_iterable(self): + # test fix for bug #1026: + + class with_wrap(np.ndarray): + __array_priority__ = 10 + + def __new__(cls): + return np.asarray(1).view(cls).copy() + + def __array_wrap__(self, arr, context, return_scalar): + return arr.view(type(self)) + + a = with_wrap() + x = ncu.multiply(a, (1, 2, 3)) + assert_(isinstance(x, with_wrap)) + assert_array_equal(x, np.array((1, 2, 3))) + + def test_priority_with_scalar(self): + # test fix for bug #826: + + class A(np.ndarray): + __array_priority__ = 10 + + def __new__(cls): + return np.asarray(1.0, 'float64').view(cls).copy() + + a = A() + x = np.float64(1) * a + assert_(isinstance(x, A)) + assert_array_equal(x, np.array(1)) + + def test_priority(self): + + class A: + def __array__(self, dtype=None, copy=None): + return np.zeros(1) + + def __array_wrap__(self, arr, context, return_scalar): + r = type(self)() + r.arr = arr + r.context = context + return r + + class B(A): + __array_priority__ = 20. + + class C(A): + __array_priority__ = 40. + + x = np.zeros(1) + a = A() + b = B() + c = C() + f = ncu.minimum + assert_(type(f(x, x)) is np.ndarray) + assert_(type(f(x, a)) is A) + assert_(type(f(x, b)) is B) + assert_(type(f(x, c)) is C) + assert_(type(f(a, x)) is A) + assert_(type(f(b, x)) is B) + assert_(type(f(c, x)) is C) + + assert_(type(f(a, a)) is A) + assert_(type(f(a, b)) is B) + assert_(type(f(b, a)) is B) + assert_(type(f(b, b)) is B) + assert_(type(f(b, c)) is C) + assert_(type(f(c, b)) is C) + assert_(type(f(c, c)) is C) + + assert_(type(ncu.exp(a) is A)) + assert_(type(ncu.exp(b) is B)) + assert_(type(ncu.exp(c) is C)) + + def test_failing_wrap(self): + + class A: + def __array__(self, dtype=None, copy=None): + return np.zeros(2) + + def __array_wrap__(self, arr, context, return_scalar): + raise RuntimeError + + a = A() + assert_raises(RuntimeError, ncu.maximum, a, a) + assert_raises(RuntimeError, ncu.maximum.reduce, a) + + def test_failing_out_wrap(self): + + singleton = np.array([1.0]) + + class Ok(np.ndarray): + def __array_wrap__(self, obj, context, return_scalar): + return singleton + + class Bad(np.ndarray): + def __array_wrap__(self, obj, context, return_scalar): + raise RuntimeError + + ok = np.empty(1).view(Ok) + bad = np.empty(1).view(Bad) + # double-free (segfault) of "ok" if "bad" raises an exception + for i in range(10): + assert_raises(RuntimeError, ncu.frexp, 1, ok, bad) + + def test_none_wrap(self): + # Tests that issue #8507 is resolved. Previously, this would segfault + + class A: + def __array__(self, dtype=None, copy=None): + return np.zeros(1) + + def __array_wrap__(self, arr, context=None, return_scalar=False): + return None + + a = A() + assert_equal(ncu.maximum(a, a), None) + + def test_default_prepare(self): + + class with_wrap: + __array_priority__ = 10 + + def __array__(self, dtype=None, copy=None): + return np.zeros(1) + + def __array_wrap__(self, arr, context, return_scalar): + return arr + + a = with_wrap() + x = ncu.minimum(a, a) + assert_equal(x, np.zeros(1)) + assert_equal(type(x), np.ndarray) + + def test_array_too_many_args(self): + + class A: + def __array__(self, dtype, context, copy=None): + return np.zeros(1) + + a = A() + assert_raises_regex(TypeError, '2 required positional', np.sum, a) + + def test_ufunc_override(self): + # check override works even with instance with high priority. + class A: + def __array_ufunc__(self, func, method, *inputs, **kwargs): + return self, func, method, inputs, kwargs + + class MyNDArray(np.ndarray): + __array_priority__ = 100 + + a = A() + b = np.array([1]).view(MyNDArray) + res0 = np.multiply(a, b) + res1 = np.multiply(b, b, out=a) + + # self + assert_equal(res0[0], a) + assert_equal(res1[0], a) + assert_equal(res0[1], np.multiply) + assert_equal(res1[1], np.multiply) + assert_equal(res0[2], '__call__') + assert_equal(res1[2], '__call__') + assert_equal(res0[3], (a, b)) + assert_equal(res1[3], (b, b)) + assert_equal(res0[4], {}) + assert_equal(res1[4], {'out': (a,)}) + + def test_ufunc_override_mro(self): + + # Some multi arg functions for testing. + def tres_mul(a, b, c): + return a * b * c + + def quatro_mul(a, b, c, d): + return a * b * c * d + + # Make these into ufuncs. + three_mul_ufunc = np.frompyfunc(tres_mul, 3, 1) + four_mul_ufunc = np.frompyfunc(quatro_mul, 4, 1) + + class A: + def __array_ufunc__(self, func, method, *inputs, **kwargs): + return "A" + + class ASub(A): + def __array_ufunc__(self, func, method, *inputs, **kwargs): + return "ASub" + + class B: + def __array_ufunc__(self, func, method, *inputs, **kwargs): + return "B" + + class C: + def __init__(self): + self.count = 0 + + def __array_ufunc__(self, func, method, *inputs, **kwargs): + self.count += 1 + return NotImplemented + + class CSub(C): + def __array_ufunc__(self, func, method, *inputs, **kwargs): + self.count += 1 + return NotImplemented + + a = A() + a_sub = ASub() + b = B() + c = C() + + # Standard + res = np.multiply(a, a_sub) + assert_equal(res, "ASub") + res = np.multiply(a_sub, b) + assert_equal(res, "ASub") + + # With 1 NotImplemented + res = np.multiply(c, a) + assert_equal(res, "A") + assert_equal(c.count, 1) + # Check our counter works, so we can trust tests below. + res = np.multiply(c, a) + assert_equal(c.count, 2) + + # Both NotImplemented. + c = C() + c_sub = CSub() + assert_raises(TypeError, np.multiply, c, c_sub) + assert_equal(c.count, 1) + assert_equal(c_sub.count, 1) + c.count = c_sub.count = 0 + assert_raises(TypeError, np.multiply, c_sub, c) + assert_equal(c.count, 1) + assert_equal(c_sub.count, 1) + c.count = 0 + assert_raises(TypeError, np.multiply, c, c) + assert_equal(c.count, 1) + c.count = 0 + assert_raises(TypeError, np.multiply, 2, c) + assert_equal(c.count, 1) + + # Ternary testing. + assert_equal(three_mul_ufunc(a, 1, 2), "A") + assert_equal(three_mul_ufunc(1, a, 2), "A") + assert_equal(three_mul_ufunc(1, 2, a), "A") + + assert_equal(three_mul_ufunc(a, a, 6), "A") + assert_equal(three_mul_ufunc(a, 2, a), "A") + assert_equal(three_mul_ufunc(a, 2, b), "A") + assert_equal(three_mul_ufunc(a, 2, a_sub), "ASub") + assert_equal(three_mul_ufunc(a, a_sub, 3), "ASub") + c.count = 0 + assert_equal(three_mul_ufunc(c, a_sub, 3), "ASub") + assert_equal(c.count, 1) + c.count = 0 + assert_equal(three_mul_ufunc(1, a_sub, c), "ASub") + assert_equal(c.count, 0) + + c.count = 0 + assert_equal(three_mul_ufunc(a, b, c), "A") + assert_equal(c.count, 0) + c_sub.count = 0 + assert_equal(three_mul_ufunc(a, b, c_sub), "A") + assert_equal(c_sub.count, 0) + assert_equal(three_mul_ufunc(1, 2, b), "B") + + assert_raises(TypeError, three_mul_ufunc, 1, 2, c) + assert_raises(TypeError, three_mul_ufunc, c_sub, 2, c) + assert_raises(TypeError, three_mul_ufunc, c_sub, 2, 3) + + # Quaternary testing. + assert_equal(four_mul_ufunc(a, 1, 2, 3), "A") + assert_equal(four_mul_ufunc(1, a, 2, 3), "A") + assert_equal(four_mul_ufunc(1, 1, a, 3), "A") + assert_equal(four_mul_ufunc(1, 1, 2, a), "A") + + assert_equal(four_mul_ufunc(a, b, 2, 3), "A") + assert_equal(four_mul_ufunc(1, a, 2, b), "A") + assert_equal(four_mul_ufunc(b, 1, a, 3), "B") + assert_equal(four_mul_ufunc(a_sub, 1, 2, a), "ASub") + assert_equal(four_mul_ufunc(a, 1, 2, a_sub), "ASub") + + c = C() + c_sub = CSub() + assert_raises(TypeError, four_mul_ufunc, 1, 2, 3, c) + assert_equal(c.count, 1) + c.count = 0 + assert_raises(TypeError, four_mul_ufunc, 1, 2, c_sub, c) + assert_equal(c_sub.count, 1) + assert_equal(c.count, 1) + c2 = C() + c.count = c_sub.count = 0 + assert_raises(TypeError, four_mul_ufunc, 1, c, c_sub, c2) + assert_equal(c_sub.count, 1) + assert_equal(c.count, 1) + assert_equal(c2.count, 0) + c.count = c2.count = c_sub.count = 0 + assert_raises(TypeError, four_mul_ufunc, c2, c, c_sub, c) + assert_equal(c_sub.count, 1) + assert_equal(c.count, 0) + assert_equal(c2.count, 1) + + def test_ufunc_override_methods(self): + + class A: + def __array_ufunc__(self, ufunc, method, *inputs, **kwargs): + return self, ufunc, method, inputs, kwargs + + # __call__ + a = A() + with assert_raises(TypeError): + np.multiply.__call__(1, a, foo='bar', answer=42) + res = np.multiply.__call__(1, a, subok='bar', where=42) + assert_equal(res[0], a) + assert_equal(res[1], np.multiply) + assert_equal(res[2], '__call__') + assert_equal(res[3], (1, a)) + assert_equal(res[4], {'subok': 'bar', 'where': 42}) + + # __call__, wrong args + assert_raises(TypeError, np.multiply, a) + assert_raises(TypeError, np.multiply, a, a, a, a) + assert_raises(TypeError, np.multiply, a, a, sig='a', signature='a') + assert_raises(TypeError, ncu_tests.inner1d, a, a, axis=0, axes=[0, 0]) + + # reduce, positional args + res = np.multiply.reduce(a, 'axis0', 'dtype0', 'out0', 'keep0') + assert_equal(res[0], a) + assert_equal(res[1], np.multiply) + assert_equal(res[2], 'reduce') + assert_equal(res[3], (a,)) + assert_equal(res[4], {'dtype': 'dtype0', + 'out': ('out0',), + 'keepdims': 'keep0', + 'axis': 'axis0'}) + + # reduce, kwargs + res = np.multiply.reduce(a, axis='axis0', dtype='dtype0', out='out0', + keepdims='keep0', initial='init0', + where='where0') + assert_equal(res[0], a) + assert_equal(res[1], np.multiply) + assert_equal(res[2], 'reduce') + assert_equal(res[3], (a,)) + assert_equal(res[4], {'dtype': 'dtype0', + 'out': ('out0',), + 'keepdims': 'keep0', + 'axis': 'axis0', + 'initial': 'init0', + 'where': 'where0'}) + # reduce, kwargs, out=None is removed + res = np.multiply.reduce(a, axis='axis0', dtype='dtype0', out=None, + keepdims='keep0', initial='init0', + where='where0') + assert_equal(res[0], a) + assert_equal(res[1], np.multiply) + assert_equal(res[2], 'reduce') + assert_equal(res[3], (a,)) + assert_equal(res[4], {'dtype': 'dtype0', + 'keepdims': 'keep0', + 'axis': 'axis0', + 'initial': 'init0', + 'where': 'where0'}) + + # reduce, output equal to None removed, but not other explicit ones, + # even if they are at their default value. + res = np.multiply.reduce(a, 0, None, None, False) + assert_equal(res[4], {'axis': 0, 'dtype': None, 'keepdims': False}) + res = np.multiply.reduce(a, out=None, axis=0, keepdims=True) + assert_equal(res[4], {'axis': 0, 'keepdims': True}) + res = np.multiply.reduce(a, None, out=(None,), dtype=None) + assert_equal(res[4], {'axis': None, 'dtype': None}) + res = np.multiply.reduce(a, 0, None, None, False, 2, True) + assert_equal(res[4], {'axis': 0, 'dtype': None, 'keepdims': False, + 'initial': 2, 'where': True}) + # np._NoValue ignored for initial + res = np.multiply.reduce(a, 0, None, None, False, + np._NoValue, True) + assert_equal(res[4], {'axis': 0, 'dtype': None, 'keepdims': False, + 'where': True}) + # None kept for initial, True for where. + res = np.multiply.reduce(a, 0, None, None, False, None, True) + assert_equal(res[4], {'axis': 0, 'dtype': None, 'keepdims': False, + 'initial': None, 'where': True}) + + # reduce, wrong args + assert_raises(ValueError, np.multiply.reduce, a, out=()) + assert_raises(ValueError, np.multiply.reduce, a, out=('out0', 'out1')) + assert_raises(TypeError, np.multiply.reduce, a, 'axis0', axis='axis0') + + # accumulate, pos args + res = np.multiply.accumulate(a, 'axis0', 'dtype0', 'out0') + assert_equal(res[0], a) + assert_equal(res[1], np.multiply) + assert_equal(res[2], 'accumulate') + assert_equal(res[3], (a,)) + assert_equal(res[4], {'dtype': 'dtype0', + 'out': ('out0',), + 'axis': 'axis0'}) + + # accumulate, kwargs + res = np.multiply.accumulate(a, axis='axis0', dtype='dtype0', + out='out0') + assert_equal(res[0], a) + assert_equal(res[1], np.multiply) + assert_equal(res[2], 'accumulate') + assert_equal(res[3], (a,)) + assert_equal(res[4], {'dtype': 'dtype0', + 'out': ('out0',), + 'axis': 'axis0'}) + + # accumulate, output equal to None removed. + res = np.multiply.accumulate(a, 0, None, None) + assert_equal(res[4], {'axis': 0, 'dtype': None}) + res = np.multiply.accumulate(a, out=None, axis=0, dtype='dtype1') + assert_equal(res[4], {'axis': 0, 'dtype': 'dtype1'}) + res = np.multiply.accumulate(a, None, out=(None,), dtype=None) + assert_equal(res[4], {'axis': None, 'dtype': None}) + + # accumulate, wrong args + assert_raises(ValueError, np.multiply.accumulate, a, out=()) + assert_raises(ValueError, np.multiply.accumulate, a, + out=('out0', 'out1')) + assert_raises(TypeError, np.multiply.accumulate, a, + 'axis0', axis='axis0') + + # reduceat, pos args + res = np.multiply.reduceat(a, [4, 2], 'axis0', 'dtype0', 'out0') + assert_equal(res[0], a) + assert_equal(res[1], np.multiply) + assert_equal(res[2], 'reduceat') + assert_equal(res[3], (a, [4, 2])) + assert_equal(res[4], {'dtype': 'dtype0', + 'out': ('out0',), + 'axis': 'axis0'}) + + # reduceat, kwargs + res = np.multiply.reduceat(a, [4, 2], axis='axis0', dtype='dtype0', + out='out0') + assert_equal(res[0], a) + assert_equal(res[1], np.multiply) + assert_equal(res[2], 'reduceat') + assert_equal(res[3], (a, [4, 2])) + assert_equal(res[4], {'dtype': 'dtype0', + 'out': ('out0',), + 'axis': 'axis0'}) + + # reduceat, output equal to None removed. + res = np.multiply.reduceat(a, [4, 2], 0, None, None) + assert_equal(res[4], {'axis': 0, 'dtype': None}) + res = np.multiply.reduceat(a, [4, 2], axis=None, out=None, dtype='dt') + assert_equal(res[4], {'axis': None, 'dtype': 'dt'}) + res = np.multiply.reduceat(a, [4, 2], None, None, out=(None,)) + assert_equal(res[4], {'axis': None, 'dtype': None}) + + # reduceat, wrong args + assert_raises(ValueError, np.multiply.reduce, a, [4, 2], out=()) + assert_raises(ValueError, np.multiply.reduce, a, [4, 2], + out=('out0', 'out1')) + assert_raises(TypeError, np.multiply.reduce, a, [4, 2], + 'axis0', axis='axis0') + + # outer + res = np.multiply.outer(a, 42) + assert_equal(res[0], a) + assert_equal(res[1], np.multiply) + assert_equal(res[2], 'outer') + assert_equal(res[3], (a, 42)) + assert_equal(res[4], {}) + + # outer, wrong args + assert_raises(TypeError, np.multiply.outer, a) + assert_raises(TypeError, np.multiply.outer, a, a, a, a) + assert_raises(TypeError, np.multiply.outer, a, a, sig='a', signature='a') + + # at + res = np.multiply.at(a, [4, 2], 'b0') + assert_equal(res[0], a) + assert_equal(res[1], np.multiply) + assert_equal(res[2], 'at') + assert_equal(res[3], (a, [4, 2], 'b0')) + + # at, wrong args + assert_raises(TypeError, np.multiply.at, a) + assert_raises(TypeError, np.multiply.at, a, a, a, a) + + def test_ufunc_override_out(self): + + class A: + def __array_ufunc__(self, ufunc, method, *inputs, **kwargs): + return kwargs + + class B: + def __array_ufunc__(self, ufunc, method, *inputs, **kwargs): + return kwargs + + a = A() + b = B() + res0 = np.multiply(a, b, 'out_arg') + res1 = np.multiply(a, b, out='out_arg') + res2 = np.multiply(2, b, 'out_arg') + res3 = np.multiply(3, b, out='out_arg') + res4 = np.multiply(a, 4, 'out_arg') + res5 = np.multiply(a, 5, out='out_arg') + + assert_equal(res0['out'][0], 'out_arg') + assert_equal(res1['out'][0], 'out_arg') + assert_equal(res2['out'][0], 'out_arg') + assert_equal(res3['out'][0], 'out_arg') + assert_equal(res4['out'][0], 'out_arg') + assert_equal(res5['out'][0], 'out_arg') + + # ufuncs with multiple output modf and frexp. + res6 = np.modf(a, 'out0', 'out1') + res7 = np.frexp(a, 'out0', 'out1') + assert_equal(res6['out'][0], 'out0') + assert_equal(res6['out'][1], 'out1') + assert_equal(res7['out'][0], 'out0') + assert_equal(res7['out'][1], 'out1') + + # While we're at it, check that default output is never passed on. + assert_(np.sin(a, None) == {}) + assert_(np.sin(a, out=None) == {}) + assert_(np.sin(a, out=(None,)) == {}) + assert_(np.modf(a, None) == {}) + assert_(np.modf(a, None, None) == {}) + assert_(np.modf(a, out=(None, None)) == {}) + with assert_raises(TypeError): + # Out argument must be tuple, since there are multiple outputs. + np.modf(a, out=None) + + # don't give positional and output argument, or too many arguments. + # wrong number of arguments in the tuple is an error too. + assert_raises(TypeError, np.multiply, a, b, 'one', out='two') + assert_raises(TypeError, np.multiply, a, b, 'one', 'two') + assert_raises(ValueError, np.multiply, a, b, out=('one', 'two')) + assert_raises(TypeError, np.multiply, a, out=()) + assert_raises(TypeError, np.modf, a, 'one', out=('two', 'three')) + assert_raises(TypeError, np.modf, a, 'one', 'two', 'three') + assert_raises(ValueError, np.modf, a, out=('one', 'two', 'three')) + assert_raises(ValueError, np.modf, a, out=('one',)) + + def test_ufunc_override_where(self): + + class OverriddenArrayOld(np.ndarray): + + def _unwrap(self, objs): + cls = type(self) + result = [] + for obj in objs: + if isinstance(obj, cls): + obj = np.array(obj) + elif type(obj) != np.ndarray: + return NotImplemented + result.append(obj) + return result + + def __array_ufunc__(self, ufunc, method, *inputs, **kwargs): + + inputs = self._unwrap(inputs) + if inputs is NotImplemented: + return NotImplemented + + kwargs = kwargs.copy() + if "out" in kwargs: + kwargs["out"] = self._unwrap(kwargs["out"])[0] + if kwargs["out"] is NotImplemented: + return NotImplemented + + r = super().__array_ufunc__(ufunc, method, *inputs, **kwargs) + if r is not NotImplemented: + r = r.view(type(self)) + + return r + + class OverriddenArrayNew(OverriddenArrayOld): + def __array_ufunc__(self, ufunc, method, *inputs, **kwargs): + + kwargs = kwargs.copy() + if "where" in kwargs: + kwargs["where"] = self._unwrap((kwargs["where"], )) + if kwargs["where"] is NotImplemented: + return NotImplemented + else: + kwargs["where"] = kwargs["where"][0] + + r = super().__array_ufunc__(ufunc, method, *inputs, **kwargs) + if r is not NotImplemented: + r = r.view(type(self)) + + return r + + ufunc = np.negative + + array = np.array([1, 2, 3]) + where = np.array([True, False, True]) + out = np.zeros(3, dtype=array.dtype) + expected = ufunc(array, where=where, out=out) + + with pytest.raises(TypeError): + ufunc( + array, + where=where.view(OverriddenArrayOld), + out=out, + ) + + result_1 = ufunc( + array, + where=where.view(OverriddenArrayNew), + out=out, + ) + assert isinstance(result_1, OverriddenArrayNew) + assert np.all(np.array(result_1) == expected, where=where) + + result_2 = ufunc( + array.view(OverriddenArrayNew), + where=where.view(OverriddenArrayNew), + out=out.view(OverriddenArrayNew), + ) + assert isinstance(result_2, OverriddenArrayNew) + assert np.all(np.array(result_2) == expected, where=where) + + def test_ufunc_override_exception(self): + + class A: + def __array_ufunc__(self, *a, **kwargs): + raise ValueError("oops") + + a = A() + assert_raises(ValueError, np.negative, 1, out=a) + assert_raises(ValueError, np.negative, a) + assert_raises(ValueError, np.divide, 1., a) + + def test_ufunc_override_not_implemented(self): + + class A: + def __array_ufunc__(self, *args, **kwargs): + return NotImplemented + + msg = ("operand type(s) all returned NotImplemented from " + "__array_ufunc__(, '__call__', <*>): 'A'") + with assert_raises_regex(TypeError, fnmatch.translate(msg)): + np.negative(A()) + + msg = ("operand type(s) all returned NotImplemented from " + "__array_ufunc__(, '__call__', <*>, , " + "out=(1,)): 'A', 'object', 'int'") + with assert_raises_regex(TypeError, fnmatch.translate(msg)): + np.add(A(), object(), out=1) + + def test_ufunc_override_disabled(self): + + class OptOut: + __array_ufunc__ = None + + opt_out = OptOut() + + # ufuncs always raise + msg = "operand 'OptOut' does not support ufuncs" + with assert_raises_regex(TypeError, msg): + np.add(opt_out, 1) + with assert_raises_regex(TypeError, msg): + np.add(1, opt_out) + with assert_raises_regex(TypeError, msg): + np.negative(opt_out) + + # opt-outs still hold even when other arguments have pathological + # __array_ufunc__ implementations + + class GreedyArray: + def __array_ufunc__(self, *args, **kwargs): + return self + + greedy = GreedyArray() + assert_(np.negative(greedy) is greedy) + with assert_raises_regex(TypeError, msg): + np.add(greedy, opt_out) + with assert_raises_regex(TypeError, msg): + np.add(greedy, 1, out=opt_out) + + def test_gufunc_override(self): + # gufunc are just ufunc instances, but follow a different path, + # so check __array_ufunc__ overrides them properly. + class A: + def __array_ufunc__(self, ufunc, method, *inputs, **kwargs): + return self, ufunc, method, inputs, kwargs + + inner1d = ncu_tests.inner1d + a = A() + res = inner1d(a, a) + assert_equal(res[0], a) + assert_equal(res[1], inner1d) + assert_equal(res[2], '__call__') + assert_equal(res[3], (a, a)) + assert_equal(res[4], {}) + + res = inner1d(1, 1, out=a) + assert_equal(res[0], a) + assert_equal(res[1], inner1d) + assert_equal(res[2], '__call__') + assert_equal(res[3], (1, 1)) + assert_equal(res[4], {'out': (a,)}) + + # wrong number of arguments in the tuple is an error too. + assert_raises(TypeError, inner1d, a, out='two') + assert_raises(TypeError, inner1d, a, a, 'one', out='two') + assert_raises(TypeError, inner1d, a, a, 'one', 'two') + assert_raises(ValueError, inner1d, a, a, out=('one', 'two')) + assert_raises(ValueError, inner1d, a, a, out=()) + + def test_ufunc_override_with_super(self): + # NOTE: this class is used in doc/source/user/basics.subclassing.rst + # if you make any changes here, do update it there too. + class A(np.ndarray): + def __array_ufunc__(self, ufunc, method, *inputs, out=None, **kwargs): + args = [] + in_no = [] + for i, input_ in enumerate(inputs): + if isinstance(input_, A): + in_no.append(i) + args.append(input_.view(np.ndarray)) + else: + args.append(input_) + + outputs = out + out_no = [] + if outputs: + out_args = [] + for j, output in enumerate(outputs): + if isinstance(output, A): + out_no.append(j) + out_args.append(output.view(np.ndarray)) + else: + out_args.append(output) + kwargs['out'] = tuple(out_args) + else: + outputs = (None,) * ufunc.nout + + info = {} + if in_no: + info['inputs'] = in_no + if out_no: + info['outputs'] = out_no + + results = super().__array_ufunc__(ufunc, method, + *args, **kwargs) + if results is NotImplemented: + return NotImplemented + + if method == 'at': + if isinstance(inputs[0], A): + inputs[0].info = info + return + + if ufunc.nout == 1: + results = (results,) + + results = tuple((np.asarray(result).view(A) + if output is None else output) + for result, output in zip(results, outputs)) + if results and isinstance(results[0], A): + results[0].info = info + + return results[0] if len(results) == 1 else results + + class B: + def __array_ufunc__(self, ufunc, method, *inputs, **kwargs): + if any(isinstance(input_, A) for input_ in inputs): + return "A!" + else: + return NotImplemented + + d = np.arange(5.) + # 1 input, 1 output + a = np.arange(5.).view(A) + b = np.sin(a) + check = np.sin(d) + assert_(np.all(check == b)) + assert_equal(b.info, {'inputs': [0]}) + b = np.sin(d, out=(a,)) + assert_(np.all(check == b)) + assert_equal(b.info, {'outputs': [0]}) + assert_(b is a) + a = np.arange(5.).view(A) + b = np.sin(a, out=a) + assert_(np.all(check == b)) + assert_equal(b.info, {'inputs': [0], 'outputs': [0]}) + + # 1 input, 2 outputs + a = np.arange(5.).view(A) + b1, b2 = np.modf(a) + assert_equal(b1.info, {'inputs': [0]}) + b1, b2 = np.modf(d, out=(None, a)) + assert_(b2 is a) + assert_equal(b1.info, {'outputs': [1]}) + a = np.arange(5.).view(A) + b = np.arange(5.).view(A) + c1, c2 = np.modf(a, out=(a, b)) + assert_(c1 is a) + assert_(c2 is b) + assert_equal(c1.info, {'inputs': [0], 'outputs': [0, 1]}) + + # 2 input, 1 output + a = np.arange(5.).view(A) + b = np.arange(5.).view(A) + c = np.add(a, b, out=a) + assert_(c is a) + assert_equal(c.info, {'inputs': [0, 1], 'outputs': [0]}) + # some tests with a non-ndarray subclass + a = np.arange(5.) + b = B() + assert_(a.__array_ufunc__(np.add, '__call__', a, b) is NotImplemented) + assert_(b.__array_ufunc__(np.add, '__call__', a, b) is NotImplemented) + assert_raises(TypeError, np.add, a, b) + a = a.view(A) + assert_(a.__array_ufunc__(np.add, '__call__', a, b) is NotImplemented) + assert_(b.__array_ufunc__(np.add, '__call__', a, b) == "A!") + assert_(np.add(a, b) == "A!") + # regression check for gh-9102 -- tests ufunc.reduce implicitly. + d = np.array([[1, 2, 3], [1, 2, 3]]) + a = d.view(A) + c = a.any() + check = d.any() + assert_equal(c, check) + assert_(c.info, {'inputs': [0]}) + c = a.max() + check = d.max() + assert_equal(c, check) + assert_(c.info, {'inputs': [0]}) + b = np.array(0).view(A) + c = a.max(out=b) + assert_equal(c, check) + assert_(c is b) + assert_(c.info, {'inputs': [0], 'outputs': [0]}) + check = a.max(axis=0) + b = np.zeros_like(check).view(A) + c = a.max(axis=0, out=b) + assert_equal(c, check) + assert_(c is b) + assert_(c.info, {'inputs': [0], 'outputs': [0]}) + # simple explicit tests of reduce, accumulate, reduceat + check = np.add.reduce(d, axis=1) + c = np.add.reduce(a, axis=1) + assert_equal(c, check) + assert_(c.info, {'inputs': [0]}) + b = np.zeros_like(c) + c = np.add.reduce(a, 1, None, b) + assert_equal(c, check) + assert_(c is b) + assert_(c.info, {'inputs': [0], 'outputs': [0]}) + check = np.add.accumulate(d, axis=0) + c = np.add.accumulate(a, axis=0) + assert_equal(c, check) + assert_(c.info, {'inputs': [0]}) + b = np.zeros_like(c) + c = np.add.accumulate(a, 0, None, b) + assert_equal(c, check) + assert_(c is b) + assert_(c.info, {'inputs': [0], 'outputs': [0]}) + indices = [0, 2, 1] + check = np.add.reduceat(d, indices, axis=1) + c = np.add.reduceat(a, indices, axis=1) + assert_equal(c, check) + assert_(c.info, {'inputs': [0]}) + b = np.zeros_like(c) + c = np.add.reduceat(a, indices, 1, None, b) + assert_equal(c, check) + assert_(c is b) + assert_(c.info, {'inputs': [0], 'outputs': [0]}) + # and a few tests for at + d = np.array([[1, 2, 3], [1, 2, 3]]) + check = d.copy() + a = d.copy().view(A) + np.add.at(check, ([0, 1], [0, 2]), 1.) + np.add.at(a, ([0, 1], [0, 2]), 1.) + assert_equal(a, check) + assert_(a.info, {'inputs': [0]}) + b = np.array(1.).view(A) + a = d.copy().view(A) + np.add.at(a, ([0, 1], [0, 2]), b) + assert_equal(a, check) + assert_(a.info, {'inputs': [0, 2]}) + + def test_array_ufunc_direct_call(self): + # This is mainly a regression test for gh-24023 (shouldn't segfault) + a = np.array(1) + with pytest.raises(TypeError): + a.__array_ufunc__() + + # No kwargs means kwargs may be NULL on the C-level + with pytest.raises(TypeError): + a.__array_ufunc__(1, 2) + + # And the same with a valid call: + res = a.__array_ufunc__(np.add, "__call__", a, a) + assert_array_equal(res, a + a) + + @pytest.mark.thread_unsafe(reason="modifies global module") + @pytest.mark.skipif(IS_PYPY, reason="__signature__ descriptor dance fails") + def test_ufunc_docstring(self): + original_doc = np.add.__doc__ + new_doc = "new docs" + expected_dict = ( + {} if IS_PYPY else {"__module__": "numpy", "__qualname__": "add"} + ) + expected_dict["__signature__"] = inspect.signature(np.add) + + np.add.__doc__ = new_doc + assert np.add.__doc__ == new_doc + assert np.add.__dict__["__doc__"] == new_doc + + del np.add.__doc__ + assert np.add.__doc__ == original_doc + assert np.add.__dict__ == expected_dict + + np.add.__dict__["other"] = 1 + np.add.__dict__["__doc__"] = new_doc + assert np.add.__doc__ == new_doc + + del np.add.__dict__["__doc__"] + assert np.add.__doc__ == original_doc + del np.add.__dict__["other"] + assert np.add.__dict__ == expected_dict + + +class TestChoose: + def test_mixed(self): + c = np.array([True, True]) + a = np.array([True, True]) + assert_equal(np.choose(c, (a, 1)), np.array([1, 1])) + + +class TestRationalFunctions: + def test_lcm(self): + self._test_lcm_inner(np.int16) + self._test_lcm_inner(np.uint16) + + def test_lcm_object(self): + self._test_lcm_inner(np.object_) + + def test_gcd(self): + self._test_gcd_inner(np.int16) + self._test_lcm_inner(np.uint16) + + def test_gcd_object(self): + self._test_gcd_inner(np.object_) + + def _test_lcm_inner(self, dtype): + # basic use + a = np.array([12, 120], dtype=dtype) + b = np.array([20, 200], dtype=dtype) + assert_equal(np.lcm(a, b), [60, 600]) + + if not issubclass(dtype, np.unsignedinteger): + # negatives are ignored + a = np.array([12, -12, 12, -12], dtype=dtype) + b = np.array([20, 20, -20, -20], dtype=dtype) + assert_equal(np.lcm(a, b), [60] * 4) + + # reduce + a = np.array([3, 12, 20], dtype=dtype) + assert_equal(np.lcm.reduce([3, 12, 20]), 60) + + # broadcasting, and a test including 0 + a = np.arange(6).astype(dtype) + b = 20 + assert_equal(np.lcm(a, b), [0, 20, 20, 60, 20, 20]) + + def _test_gcd_inner(self, dtype): + # basic use + a = np.array([12, 120], dtype=dtype) + b = np.array([20, 200], dtype=dtype) + assert_equal(np.gcd(a, b), [4, 40]) + + if not issubclass(dtype, np.unsignedinteger): + # negatives are ignored + a = np.array([12, -12, 12, -12], dtype=dtype) + b = np.array([20, 20, -20, -20], dtype=dtype) + assert_equal(np.gcd(a, b), [4] * 4) + + # reduce + a = np.array([15, 25, 35], dtype=dtype) + assert_equal(np.gcd.reduce(a), 5) + + # broadcasting, and a test including 0 + a = np.arange(6).astype(dtype) + b = 20 + assert_equal(np.gcd(a, b), [20, 1, 2, 1, 4, 5]) + + def test_lcm_overflow(self): + # verify that we don't overflow when a*b does overflow + big = np.int32(np.iinfo(np.int32).max // 11) + a = 2 * big + b = 5 * big + assert_equal(np.lcm(a, b), 10 * big) + + def test_gcd_overflow(self): + for dtype in (np.int32, np.int64): + # verify that we don't overflow when taking abs(x) + # not relevant for lcm, where the result is unrepresentable anyway + a = dtype(np.iinfo(dtype).min) # negative power of two + q = -(a // 4) + assert_equal(np.gcd(a, q * 3), q) + assert_equal(np.gcd(a, -q * 3), q) + + def test_decimal(self): + from decimal import Decimal + a = np.array([1, 1, -1, -1]) * Decimal('0.20') + b = np.array([1, -1, 1, -1]) * Decimal('0.12') + + assert_equal(np.gcd(a, b), 4 * [Decimal('0.04')]) + assert_equal(np.lcm(a, b), 4 * [Decimal('0.60')]) + + def test_float(self): + # not well-defined on float due to rounding errors + assert_raises(TypeError, np.gcd, 0.3, 0.4) + assert_raises(TypeError, np.lcm, 0.3, 0.4) + + def test_huge_integers(self): + # Converting to an array first is a bit different as it means we + # have an explicit object dtype: + assert_equal(np.array(2**200), 2**200) + # Special promotion rules should ensure that this also works for + # two Python integers (even if slow). + # (We do this for comparisons, as the result is always bool and + # we also special case array comparisons with Python integers) + np.equal(2**200, 2**200) + + # But, we cannot do this when it would affect the result dtype: + with pytest.raises(OverflowError): + np.gcd(2**100, 3**100) + + # Asking for `object` explicitly is fine, though: + assert np.gcd(2**100, 3**100, dtype=object) == 1 + + # As of now, the below work, because it is using arrays (which + # will be object arrays) + a = np.array(2**100 * 3**5) + b = np.array([2**100 * 5**7, 2**50 * 3**10]) + assert_equal(np.gcd(a, b), [2**100, 2**50 * 3**5]) + assert_equal(np.lcm(a, b), [2**100 * 3**5 * 5**7, 2**100 * 3**10]) + + def test_inf_and_nan(self): + inf = np.array([np.inf], dtype=np.object_) + assert_raises(ValueError, np.gcd, inf, 1) + assert_raises(ValueError, np.gcd, 1, inf) + assert_raises(ValueError, np.gcd, np.nan, inf) + assert_raises(TypeError, np.gcd, 4, float(np.inf)) + + +class TestRoundingFunctions: + + def test_object_direct(self): + """ test direct implementation of these magic methods """ + class C: + def __floor__(self): + return 1 + + def __ceil__(self): + return 2 + + def __trunc__(self): + return 3 + + arr = np.array([C(), C()]) + assert_equal(np.floor(arr), [1, 1]) + assert_equal(np.ceil(arr), [2, 2]) + assert_equal(np.trunc(arr), [3, 3]) + + def test_object_indirect(self): + """ test implementations via __float__ """ + class C: + def __float__(self): + return -2.5 + + arr = np.array([C(), C()]) + assert_equal(np.floor(arr), [-3, -3]) + assert_equal(np.ceil(arr), [-2, -2]) + with pytest.raises(TypeError): + np.trunc(arr) # consistent with math.trunc + + def test_fraction(self): + f = Fraction(-4, 3) + assert_equal(np.floor(f), -2) + assert_equal(np.ceil(f), -1) + assert_equal(np.trunc(f), -1) + + @pytest.mark.parametrize('func', [np.floor, np.ceil, np.trunc]) + @pytest.mark.parametrize('dtype', [np.bool, np.float64, np.float32, + np.int64, np.uint32]) + def test_output_dtype(self, func, dtype): + arr = np.array([-2, 0, 4, 8]).astype(dtype) + result = func(arr) + assert_equal(arr, result) + assert result.dtype == dtype + + +class TestComplexFunctions: + funcs = [np.arcsin, np.arccos, np.arctan, np.arcsinh, np.arccosh, + np.arctanh, np.sin, np.cos, np.tan, np.exp, + np.exp2, np.log, np.sqrt, np.log10, np.log2, + np.log1p] + + def test_it(self): + for f in self.funcs: + if f is np.arccosh: + x = 1.5 + else: + x = .5 + fr = f(x) + fz = f(complex(x)) + assert_almost_equal(fz.real, fr, err_msg=f'real part {f}') + assert_almost_equal(fz.imag, 0., err_msg=f'imag part {f}') + + @pytest.mark.xfail(IS_WASM, reason="doesn't work") + def test_precisions_consistent(self): + z = 1 + 1j + for f in self.funcs: + fcf = f(np.csingle(z)) + fcd = f(np.cdouble(z)) + fcl = f(np.clongdouble(z)) + assert_almost_equal(fcf, fcd, decimal=6, err_msg=f'fch-fcd {f}') + assert_almost_equal(fcl, fcd, decimal=15, err_msg=f'fch-fcl {f}') + + @pytest.mark.xfail(IS_WASM, reason="doesn't work") + def test_branch_cuts(self): + # check branch cuts and continuity on them + _check_branch_cut(np.log, -0.5, 1j, 1, -1, True) # noqa: E221 + _check_branch_cut(np.log2, -0.5, 1j, 1, -1, True) # noqa: E221 + _check_branch_cut(np.log10, -0.5, 1j, 1, -1, True) + _check_branch_cut(np.log1p, -1.5, 1j, 1, -1, True) + _check_branch_cut(np.sqrt, -0.5, 1j, 1, -1, True) # noqa: E221 + + _check_branch_cut(np.arcsin, [ -2, 2], [1j, 1j], 1, -1, True) + _check_branch_cut(np.arccos, [ -2, 2], [1j, 1j], 1, -1, True) + _check_branch_cut(np.arctan, [0 - 2j, 2j], [1, 1], -1, 1, True) + + _check_branch_cut(np.arcsinh, [0 - 2j, 2j], [1, 1], -1, 1, True) + _check_branch_cut(np.arccosh, [ -1, 0.5], [1j, 1j], 1, -1, True) + _check_branch_cut(np.arctanh, [ -2, 2], [1j, 1j], 1, -1, True) + + # check against bogus branch cuts: assert continuity between quadrants + _check_branch_cut(np.arcsin, [0 - 2j, 2j], [ 1, 1], 1, 1) + _check_branch_cut(np.arccos, [0 - 2j, 2j], [ 1, 1], 1, 1) + _check_branch_cut(np.arctan, [ -2, 2], [1j, 1j], 1, 1) + + _check_branch_cut(np.arcsinh, [ -2, 2, 0], [1j, 1j, 1], 1, 1) + _check_branch_cut(np.arccosh, [0 - 2j, 2j, 2], [1, 1, 1j], 1, 1) + _check_branch_cut(np.arctanh, [0 - 2j, 2j, 0], [1, 1, 1j], 1, 1) + + @pytest.mark.xfail(IS_WASM, reason="doesn't work") + def test_branch_cuts_complex64(self): + # check branch cuts and continuity on them + _check_branch_cut(np.log, -0.5, 1j, 1, -1, True, np.complex64) # noqa: E221 + _check_branch_cut(np.log2, -0.5, 1j, 1, -1, True, np.complex64) # noqa: E221 + _check_branch_cut(np.log10, -0.5, 1j, 1, -1, True, np.complex64) + _check_branch_cut(np.log1p, -1.5, 1j, 1, -1, True, np.complex64) + _check_branch_cut(np.sqrt, -0.5, 1j, 1, -1, True, np.complex64) # noqa: E221 + + _check_branch_cut(np.arcsin, [ -2, 2], [1j, 1j], 1, -1, True, np.complex64) + _check_branch_cut(np.arccos, [ -2, 2], [1j, 1j], 1, -1, True, np.complex64) + _check_branch_cut(np.arctan, [0 - 2j, 2j], [1, 1], -1, 1, True, np.complex64) + + _check_branch_cut(np.arcsinh, [0 - 2j, 2j], [1, 1], -1, 1, True, np.complex64) + _check_branch_cut(np.arccosh, [ -1, 0.5], [1j, 1j], 1, -1, True, np.complex64) + _check_branch_cut(np.arctanh, [ -2, 2], [1j, 1j], 1, -1, True, np.complex64) + + # check against bogus branch cuts: assert continuity between quadrants + _check_branch_cut(np.arcsin, [0 - 2j, 2j], [ 1, 1], 1, 1, False, np.complex64) + _check_branch_cut(np.arccos, [0 - 2j, 2j], [ 1, 1], 1, 1, False, np.complex64) + _check_branch_cut(np.arctan, [ -2, 2], [1j, 1j], 1, 1, False, np.complex64) + + _check_branch_cut(np.arcsinh, [ -2, 2, 0], [1j, 1j, 1], 1, 1, False, np.complex64) + _check_branch_cut(np.arccosh, [0 - 2j, 2j, 2], [1, 1, 1j], 1, 1, False, np.complex64) + _check_branch_cut(np.arctanh, [0 - 2j, 2j, 0], [1, 1, 1j], 1, 1, False, np.complex64) + + def test_against_cmath(self): + import cmath + + points = [-1 - 1j, -1 + 1j, +1 - 1j, +1 + 1j] + name_map = {'arcsin': 'asin', 'arccos': 'acos', 'arctan': 'atan', + 'arcsinh': 'asinh', 'arccosh': 'acosh', 'arctanh': 'atanh'} + atol = 4 * np.finfo(complex).eps + for func in self.funcs: + fname = func.__name__.split('.')[-1] + cname = name_map.get(fname, fname) + try: + cfunc = getattr(cmath, cname) + except AttributeError: + continue + for p in points: + a = complex(func(np.complex128(p))) + b = cfunc(p) + assert_( + abs(a - b) < atol, + f"{fname} {p}: {a}; cmath: {b}" + ) + + @pytest.mark.xfail( + # manylinux2014 uses glibc2.17 + _glibc_older_than("2.18"), + reason="Older glibc versions are imprecise (maybe passes with SIMD?)" + ) + @pytest.mark.xfail(IS_WASM, reason="doesn't work") + @pytest.mark.parametrize('dtype', [ + np.complex64, np.complex128, np.clongdouble + ]) + def test_loss_of_precision(self, dtype): + """Check loss of precision in complex arc* functions""" + if dtype is np.clongdouble and platform.machine() != 'x86_64': + # Failures on musllinux, aarch64, s390x, ppc64le (see gh-17554) + pytest.skip('Only works reliably for x86-64 and recent glibc') + + # Check against known-good functions + + info = np.finfo(dtype) + real_dtype = dtype(0.).real.dtype + eps = info.eps + + def check(x, rtol): + x = x.astype(real_dtype) + + z = x.astype(dtype) + d = np.absolute(np.arcsinh(x) / np.arcsinh(z).real - 1) + assert_(np.all(d < rtol), (np.argmax(d), x[np.argmax(d)], d.max(), + 'arcsinh')) + + z = (1j * x).astype(dtype) + d = np.absolute(np.arcsinh(x) / np.arcsin(z).imag - 1) + assert_(np.all(d < rtol), (np.argmax(d), x[np.argmax(d)], d.max(), + 'arcsin')) + + z = x.astype(dtype) + d = np.absolute(np.arctanh(x) / np.arctanh(z).real - 1) + assert_(np.all(d < rtol), (np.argmax(d), x[np.argmax(d)], d.max(), + 'arctanh')) + + z = (1j * x).astype(dtype) + d = np.absolute(np.arctanh(x) / np.arctan(z).imag - 1) + assert_(np.all(d < rtol), (np.argmax(d), x[np.argmax(d)], d.max(), + 'arctan')) + + # The switchover was chosen as 1e-3; hence there can be up to + # ~eps/1e-3 of relative cancellation error before it + + x_series = np.logspace(-20, -3.001, 200) + x_basic = np.logspace(-2.999, 0, 10, endpoint=False) + + if dtype is np.clongdouble: + if bad_arcsinh(): + pytest.skip("Trig functions of np.clongdouble values known " + "to be inaccurate on aarch64 and PPC for some " + "compilation configurations.") + # It's not guaranteed that the system-provided arc functions + # are accurate down to a few epsilons. (Eg. on Linux 64-bit) + # So, give more leeway for long complex tests here: + check(x_series, 50.0 * eps) + else: + check(x_series, 2.1 * eps) + check(x_basic, 2.0 * eps / 1e-3) + + # Check a few points + + z = np.array([1e-5 * (1 + 1j)], dtype=dtype) + p = 9.999999999333333333e-6 + 1.000000000066666666e-5j + d = np.absolute(1 - np.arctanh(z) / p) + assert_(np.all(d < 1e-15)) + + p = 1.0000000000333333333e-5 + 9.999999999666666667e-6j + d = np.absolute(1 - np.arcsinh(z) / p) + assert_(np.all(d < 1e-15)) + + p = 9.999999999333333333e-6j + 1.000000000066666666e-5 + d = np.absolute(1 - np.arctan(z) / p) + assert_(np.all(d < 1e-15)) + + p = 1.0000000000333333333e-5j + 9.999999999666666667e-6 + d = np.absolute(1 - np.arcsin(z) / p) + assert_(np.all(d < 1e-15)) + + # Check continuity across switchover points + + def check(func, z0, d=1): + z0 = np.asarray(z0, dtype=dtype) + zp = z0 + abs(z0) * d * eps * 2 + zm = z0 - abs(z0) * d * eps * 2 + assert_(np.all(zp != zm), (zp, zm)) + + # NB: the cancellation error at the switchover is at least eps + good = (abs(func(zp) - func(zm)) < 2 * eps) + assert_(np.all(good), (func, z0[~good])) + + for func in (np.arcsinh, np.arcsinh, np.arcsin, np.arctanh, np.arctan): + pts = [rp + 1j * ip for rp in (-1e-3, 0, 1e-3) for ip in (-1e-3, 0, 1e-3) + if rp != 0 or ip != 0] + check(func, pts, 1) + check(func, pts, 1j) + check(func, pts, 1 + 1j) + + @np.errstate(all="ignore") + def test_promotion_corner_cases(self): + for func in self.funcs: + assert func(np.float16(1)).dtype == np.float16 + # Integer to low precision float promotion is a dubious choice: + assert func(np.uint8(1)).dtype == np.float16 + assert func(np.int16(1)).dtype == np.float32 + + +class TestAttributes: + def test_attributes(self): + add = ncu.add + assert_equal(add.__name__, 'add') + assert_(add.ntypes >= 18) # don't fail if types added + assert_('ii->i' in add.types) + assert_equal(add.nin, 2) + assert_equal(add.nout, 1) + assert_equal(add.identity, 0) + + def test_doc(self): + # don't bother checking the long list of kwargs, which are likely to + # change + assert_(ncu.add.__doc__.startswith( + "add(x1, x2, /, out=None, *, where=True")) + assert_(ncu.frexp.__doc__.startswith( + "frexp(x[, out1, out2], / [, out=(None, None)], *, where=True")) + + +class TestSubclass: + + def test_subclass_op(self): + + class simple(np.ndarray): + def __new__(subtype, shape): + self = np.ndarray.__new__(subtype, shape, dtype=object) + self.fill(0) + return self + + a = simple((3, 4)) + assert_equal(a + a, a) + + +class TestFrompyfunc: + + def test_identity(self): + def mul(a, b): + return a * b + + # with identity=value + mul_ufunc = np.frompyfunc(mul, nin=2, nout=1, identity=1) + assert_equal(mul_ufunc.reduce([2, 3, 4]), 24) + assert_equal(mul_ufunc.reduce(np.ones((2, 2)), axis=(0, 1)), 1) + assert_equal(mul_ufunc.reduce([]), 1) + + # with identity=None (reorderable) + mul_ufunc = np.frompyfunc(mul, nin=2, nout=1, identity=None) + assert_equal(mul_ufunc.reduce([2, 3, 4]), 24) + assert_equal(mul_ufunc.reduce(np.ones((2, 2)), axis=(0, 1)), 1) + assert_raises(ValueError, lambda: mul_ufunc.reduce([])) + + # with no identity (not reorderable) + mul_ufunc = np.frompyfunc(mul, nin=2, nout=1) + assert_equal(mul_ufunc.reduce([2, 3, 4]), 24) + assert_raises(ValueError, lambda: mul_ufunc.reduce(np.ones((2, 2)), axis=(0, 1))) + assert_raises(ValueError, lambda: mul_ufunc.reduce([])) + + +def _check_branch_cut(f, x0, dx, re_sign=1, im_sign=-1, sig_zero_ok=False, + dtype=complex): + """ + Check for a branch cut in a function. + + Assert that `x0` lies on a branch cut of function `f` and `f` is + continuous from the direction `dx`. + + Parameters + ---------- + f : func + Function to check + x0 : array-like + Point on branch cut + dx : array-like + Direction to check continuity in + re_sign, im_sign : {1, -1} + Change of sign of the real or imaginary part expected + sig_zero_ok : bool + Whether to check if the branch cut respects signed zero (if applicable) + dtype : dtype + Dtype to check (should be complex) + + """ + x0 = np.atleast_1d(x0).astype(dtype) + dx = np.atleast_1d(dx).astype(dtype) + + if np.dtype(dtype).char == 'F': + scale = np.finfo(dtype).eps * 1e2 + atol = np.float32(1e-2) + else: + scale = np.finfo(dtype).eps * 1e3 + atol = 1e-4 + + y0 = f(x0) + yp = f(x0 + dx * scale * np.absolute(x0) / np.absolute(dx)) + ym = f(x0 - dx * scale * np.absolute(x0) / np.absolute(dx)) + + assert_(np.all(np.absolute(y0.real - yp.real) < atol), (y0, yp)) + assert_(np.all(np.absolute(y0.imag - yp.imag) < atol), (y0, yp)) + assert_(np.all(np.absolute(y0.real - ym.real * re_sign) < atol), (y0, ym)) + assert_(np.all(np.absolute(y0.imag - ym.imag * im_sign) < atol), (y0, ym)) + + if sig_zero_ok: + # check that signed zeros also work as a displacement + jr = (x0.real == 0) & (dx.real != 0) + ji = (x0.imag == 0) & (dx.imag != 0) + if np.any(jr): + x = x0[jr] + x.real = ncu.NZERO + ym = f(x) + assert_(np.all(np.absolute(y0[jr].real - ym.real * re_sign) < atol), (y0[jr], ym)) + assert_(np.all(np.absolute(y0[jr].imag - ym.imag * im_sign) < atol), (y0[jr], ym)) + + if np.any(ji): + x = x0[ji] + x.imag = ncu.NZERO + ym = f(x) + assert_(np.all(np.absolute(y0[ji].real - ym.real * re_sign) < atol), (y0[ji], ym)) + assert_(np.all(np.absolute(y0[ji].imag - ym.imag * im_sign) < atol), (y0[ji], ym)) + +def test_copysign(): + assert_(np.copysign(1, -1) == -1) + with np.errstate(divide="ignore"): + assert_(1 / np.copysign(0, -1) < 0) + assert_(1 / np.copysign(0, 1) > 0) + assert_(np.signbit(np.copysign(np.nan, -1))) + assert_(not np.signbit(np.copysign(np.nan, 1))) + +def _test_nextafter(t): + one = t(1) + two = t(2) + zero = t(0) + eps = np.finfo(t).eps + assert_(np.nextafter(one, two) - one == eps) + assert_(np.nextafter(one, zero) - one < 0) + assert_(np.isnan(np.nextafter(np.nan, one))) + assert_(np.isnan(np.nextafter(one, np.nan))) + assert_(np.nextafter(one, one) == one) + +def test_nextafter(): + return _test_nextafter(np.float64) + + +def test_nextafterf(): + return _test_nextafter(np.float32) + + +@pytest.mark.skipif(np.finfo(np.double) == np.finfo(np.longdouble), + reason="long double is same as double") +@pytest.mark.xfail(condition=platform.machine().startswith("ppc64"), + reason="IBM double double") +def test_nextafterl(): + return _test_nextafter(np.longdouble) + + +def test_nextafter_0(): + for t, direction in itertools.product(np._core.sctypes['float'], (1, -1)): + # The value of tiny for double double is NaN, so we need to pass the + # assert + with warnings.catch_warnings(): + warnings.simplefilter('ignore', UserWarning) + if not np.isnan(np.finfo(t).tiny): + tiny = np.finfo(t).tiny + assert_( + 0. < direction * np.nextafter(t(0), t(direction)) < tiny) + assert_equal(np.nextafter(t(0), t(direction)) / t(2.1), direction * 0.0) + +def _test_spacing(t): + one = t(1) + eps = np.finfo(t).eps + nan = t(np.nan) + inf = t(np.inf) + with np.errstate(invalid='ignore'): + assert_equal(np.spacing(one), eps) + assert_(np.isnan(np.spacing(nan))) + assert_(np.isnan(np.spacing(inf))) + assert_(np.isnan(np.spacing(-inf))) + assert_(np.spacing(t(1e30)) != 0) + +def test_spacing(): + return _test_spacing(np.float64) + +def test_spacingf(): + return _test_spacing(np.float32) + + +@pytest.mark.skipif(np.finfo(np.double) == np.finfo(np.longdouble), + reason="long double is same as double") +@pytest.mark.xfail(condition=platform.machine().startswith("ppc64"), + reason="IBM double double") +def test_spacingl(): + return _test_spacing(np.longdouble) + +def test_spacing_gfortran(): + # Reference from this fortran file, built with gfortran 4.3.3 on linux + # 32bits: + # PROGRAM test_spacing + # INTEGER, PARAMETER :: SGL = SELECTED_REAL_KIND(p=6, r=37) + # INTEGER, PARAMETER :: DBL = SELECTED_REAL_KIND(p=13, r=200) + # + # WRITE(*,*) spacing(0.00001_DBL) + # WRITE(*,*) spacing(1.0_DBL) + # WRITE(*,*) spacing(1000._DBL) + # WRITE(*,*) spacing(10500._DBL) + # + # WRITE(*,*) spacing(0.00001_SGL) + # WRITE(*,*) spacing(1.0_SGL) + # WRITE(*,*) spacing(1000._SGL) + # WRITE(*,*) spacing(10500._SGL) + # END PROGRAM + ref = {np.float64: [1.69406589450860068E-021, + 2.22044604925031308E-016, + 1.13686837721616030E-013, + 1.81898940354585648E-012], + np.float32: [9.09494702E-13, + 1.19209290E-07, + 6.10351563E-05, + 9.76562500E-04]} + + for dt, dec_ in zip([np.float32, np.float64], (10, 20)): + x = np.array([1e-5, 1, 1000, 10500], dtype=dt) + assert_array_almost_equal(np.spacing(x), ref[dt], decimal=dec_) + +def test_nextafter_vs_spacing(): + # XXX: spacing does not handle long double yet + for t in [np.float32, np.float64]: + for _f in [1, 1e-5, 1000]: + f = t(_f) + f1 = t(_f + 1) + assert_(np.nextafter(f, f1) - f == np.spacing(f)) + +def test_pos_nan(): + """Check np.nan is a positive nan.""" + assert_(np.signbit(np.nan) == 0) + +def test_reduceat(): + """Test bug in reduceat when structured arrays are not copied.""" + db = np.dtype([('name', 'S11'), ('time', np.int64), ('value', np.float32)]) + a = np.empty([100], dtype=db) + a['name'] = 'Simple' + a['time'] = 10 + a['value'] = 100 + indx = [0, 7, 15, 25] + + h2 = [] + val1 = indx[0] + for val2 in indx[1:]: + h2.append(np.add.reduce(a['value'][val1:val2])) + val1 = val2 + h2.append(np.add.reduce(a['value'][val1:])) + h2 = np.array(h2) + + # test buffered -- this should work + h1 = np.add.reduceat(a['value'], indx) + assert_array_almost_equal(h1, h2) + + # This is when the error occurs. + # test no buffer + np.setbufsize(32) + h1 = np.add.reduceat(a['value'], indx) + np.setbufsize(ncu.UFUNC_BUFSIZE_DEFAULT) + assert_array_almost_equal(h1, h2) + +def test_negative_value_raises(): + with pytest.raises(ValueError, match="buffer size must be non-negative"): + np.setbufsize(-5) + + old = np.getbufsize() + try: + prev = np.setbufsize(4096) + assert prev == old + assert np.getbufsize() == 4096 + finally: + np.setbufsize(old) + +def test_reduceat_empty(): + """Reduceat should work with empty arrays""" + indices = np.array([], 'i4') + x = np.array([], 'f8') + result = np.add.reduceat(x, indices) + assert_equal(result.dtype, x.dtype) + assert_equal(result.shape, (0,)) + # Another case with a slightly different zero-sized shape + x = np.ones((5, 2)) + result = np.add.reduceat(x, [], axis=0) + assert_equal(result.dtype, x.dtype) + assert_equal(result.shape, (0, 2)) + result = np.add.reduceat(x, [], axis=1) + assert_equal(result.dtype, x.dtype) + assert_equal(result.shape, (5, 0)) + +def test_complex_nan_comparisons(): + nans = [complex(np.nan, 0), complex(0, np.nan), complex(np.nan, np.nan)] + fins = [complex(1, 0), complex(-1, 0), complex(0, 1), complex(0, -1), + complex(1, 1), complex(-1, -1), complex(0, 0)] + + with np.errstate(invalid='ignore'): + for x in nans + fins: + x = np.array([x]) + for y in nans + fins: + y = np.array([y]) + + if np.isfinite(x) and np.isfinite(y): + continue + + assert_equal(x < y, False, err_msg=f"{x!r} < {y!r}") + assert_equal(x > y, False, err_msg=f"{x!r} > {y!r}") + assert_equal(x <= y, False, err_msg=f"{x!r} <= {y!r}") + assert_equal(x >= y, False, err_msg=f"{x!r} >= {y!r}") + assert_equal(x == y, False, err_msg=f"{x!r} == {y!r}") + + +def test_rint_big_int(): + # np.rint bug for large integer values on Windows 32-bit and MKL + # https://github.com/numpy/numpy/issues/6685 + val = 4607998452777363968 + # This is exactly representable in floating point + assert_equal(val, int(float(val))) + # Rint should not change the value + assert_equal(val, np.rint(val)) + + +@pytest.mark.parametrize('ftype', [np.float32, np.float64]) +def test_memoverlap_accumulate(ftype): + # Reproduces bug https://github.com/numpy/numpy/issues/15597 + arr = np.array([0.61, 0.60, 0.77, 0.41, 0.19], dtype=ftype) + out_max = np.array([0.61, 0.61, 0.77, 0.77, 0.77], dtype=ftype) + out_min = np.array([0.61, 0.60, 0.60, 0.41, 0.19], dtype=ftype) + assert_equal(np.maximum.accumulate(arr), out_max) + assert_equal(np.minimum.accumulate(arr), out_min) + +@pytest.mark.parametrize("ufunc, dtype", [ + (ufunc, t[0]) + for ufunc in UFUNCS_BINARY_ACC + for t in ufunc.types + if t[-1] == '?' and t[0] not in 'DFGMmO' +]) +def test_memoverlap_accumulate_cmp(ufunc, dtype): + if ufunc.signature: + pytest.skip('For generic signatures only') + for size in (2, 8, 32, 64, 128, 256): + arr = np.array([0, 1, 1] * size, dtype=dtype) + acc = ufunc.accumulate(arr, dtype='?') + acc_u8 = acc.view(np.uint8) + exp = np.array(list(itertools.accumulate(arr, ufunc)), dtype=np.uint8) + assert_equal(exp, acc_u8) + +@pytest.mark.parametrize("ufunc, dtype", [ + (ufunc, t[0]) + for ufunc in UFUNCS_BINARY_ACC + for t in ufunc.types + if t[0] == t[1] and t[0] == t[-1] and t[0] not in 'DFGMmO?' +]) +def test_memoverlap_accumulate_symmetric(ufunc, dtype): + if ufunc.signature: + pytest.skip('For generic signatures only') + with np.errstate(all='ignore'): + for size in (2, 8, 32, 64, 128, 256): + arr = np.array([0, 1, 2] * size).astype(dtype) + acc = ufunc.accumulate(arr, dtype=dtype) + exp = np.array(list(itertools.accumulate(arr, ufunc)), dtype=dtype) + assert_equal(exp, acc) + +def test_signaling_nan_exceptions(): + with assert_no_warnings(): + a = np.ndarray(shape=(), dtype='float32', buffer=b'\x00\xe0\xbf\xff') + np.isnan(a) + +@pytest.mark.parametrize("arr", [ + np.arange(2), + np.matrix([0, 1]), + np.matrix([[0, 1], [2, 5]]), + ]) +def test_outer_subclass_preserve(arr): + # for gh-8661 + class foo(np.ndarray): + pass + actual = np.multiply.outer(arr.view(foo), arr.view(foo)) + assert actual.__class__.__name__ == 'foo' + +def test_outer_bad_subclass(): + class BadArr1(np.ndarray): + def __array_finalize__(self, obj): + # The outer call reshapes to 3 dims, try to do a bad reshape. + if self.ndim == 3: + self.shape = self.shape + (1,) + + class BadArr2(np.ndarray): + def __array_finalize__(self, obj): + if isinstance(obj, BadArr2): + # outer inserts 1-sized dims. In that case disturb them. + if self.shape[-1] == 1: + self.shape = self.shape[::-1] + + for cls in [BadArr1, BadArr2]: + arr = np.ones((2, 3)).view(cls) + with assert_raises(TypeError) as a: + # The first array gets reshaped (not the second one) + np.add.outer(arr, [1, 2]) + + # This actually works, since we only see the reshaping error: + arr = np.ones((2, 3)).view(cls) + assert type(np.add.outer([1, 2], arr)) is cls + +def test_outer_exceeds_maxdims(): + deep = np.ones((1,) * 33) + with assert_raises(ValueError): + np.add.outer(deep, deep) + +def test_bad_legacy_ufunc_silent_errors(): + # legacy ufuncs can't report errors and NumPy can't check if the GIL + # is released. So NumPy has to check after the GIL is released just to + # cover all bases. `np.power` uses/used to use this. + arr = np.arange(3).astype(np.float64) + + with pytest.raises(RuntimeError, match=r"How unexpected :\)!"): + ncu_tests.always_error(arr, arr) + + with pytest.raises(RuntimeError, match=r"How unexpected :\)!"): + # not contiguous means the fast-path cannot be taken + non_contig = arr.repeat(20).reshape(-1, 6)[:, ::2] + ncu_tests.always_error(non_contig, arr) + + with pytest.raises(RuntimeError, match=r"How unexpected :\)!"): + ncu_tests.always_error.outer(arr, arr) + + with pytest.raises(RuntimeError, match=r"How unexpected :\)!"): + ncu_tests.always_error.reduce(arr) + + with pytest.raises(RuntimeError, match=r"How unexpected :\)!"): + ncu_tests.always_error.reduceat(arr, [0, 1]) + + with pytest.raises(RuntimeError, match=r"How unexpected :\)!"): + ncu_tests.always_error.accumulate(arr) + + with pytest.raises(RuntimeError, match=r"How unexpected :\)!"): + ncu_tests.always_error.at(arr, [0, 1, 2], arr) + + +def test_bad_legacy_unary_ufunc_silent_errors(): + # Unary has a special scalar path right now, so test it explicitly. + with pytest.raises(RuntimeError, match=r"How unexpected :\)!"): + ncu_tests.always_error_unary(np.arange(3).astype(np.float64)) + + with pytest.raises(RuntimeError, match=r"How unexpected :\)!"): + ncu_tests.always_error_unary(1.5) + + +@pytest.mark.parametrize('x1', [np.arange(3.0), [0.0, 1.0, 2.0]]) +def test_bad_legacy_gufunc_silent_errors(x1): + # Verify that an exception raised in a gufunc loop propagates correctly. + # The signature of always_error_gufunc is '(i),()->()'. + with pytest.raises(RuntimeError, match=r"How unexpected :\)!"): + ncu_tests.always_error_gufunc(x1, 0.0) + + +class TestAddDocstring: + @pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO") + @pytest.mark.skipif(IS_PYPY, reason="PyPy does not modify tp_doc") + def test_add_same_docstring(self): + # test for attributes (which are C-level defined) + ncu.add_docstring(np.ndarray.flat, np.ndarray.flat.__doc__) + + # And typical functions: + def func(): + """docstring""" + return + + ncu.add_docstring(func, func.__doc__) + + @pytest.mark.skipif(sys.flags.optimize == 2, reason="Python running -OO") + def test_different_docstring_fails(self): + # test for attributes (which are C-level defined) + with assert_raises(RuntimeError): + ncu.add_docstring(np.ndarray.flat, "different docstring") + + # And typical functions: + def func(): + """docstring""" + return + + with assert_raises(RuntimeError): + ncu.add_docstring(func, "different docstring") + + +class TestAdd_newdoc_ufunc: + @pytest.mark.filterwarnings("ignore:_add_newdoc_ufunc:DeprecationWarning") + def test_ufunc_arg(self): + assert_raises(TypeError, ncu._add_newdoc_ufunc, 2, "blah") + assert_raises(ValueError, ncu._add_newdoc_ufunc, np.add, "blah") + + @pytest.mark.filterwarnings("ignore:_add_newdoc_ufunc:DeprecationWarning") + def test_string_arg(self): + assert_raises(TypeError, ncu._add_newdoc_ufunc, np.add, 3) + +class TestHypotErrorMessages: + def test_hypot_error_message_single_arg(self): + with pytest.raises(TypeError, match="hypot\\(\\) takes .* but 1 was given"): + np.hypot(5) + + def test_hypot_error_message_multiple_args(self): + with pytest.raises(TypeError, match="hypot\\(\\) takes .* but 4 were given"): + np.hypot(1, 2, 3, 4) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_umath_accuracy.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_umath_accuracy.py new file mode 100644 index 0000000000000000000000000000000000000000..3ca2f508672e90ec890df3b58082d31328efa0be --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_umath_accuracy.py @@ -0,0 +1,132 @@ +import os +import sys +from ctypes import POINTER, c_double, c_float, c_int, c_longlong, cast, pointer +from os import path + +import pytest + +import numpy as np +from numpy._core._multiarray_umath import __cpu_features__ +from numpy.testing import assert_array_max_ulp +from numpy.testing._private.utils import _glibc_older_than + +UNARY_UFUNCS = [obj for obj in np._core.umath.__dict__.values() if + isinstance(obj, np.ufunc)] +UNARY_OBJECT_UFUNCS = [uf for uf in UNARY_UFUNCS if "O->O" in uf.types] + +# Remove functions that do not support `floats` +UNARY_OBJECT_UFUNCS.remove(np.invert) +UNARY_OBJECT_UFUNCS.remove(np.bitwise_count) + +IS_AVX = __cpu_features__.get('AVX512F', False) or \ + (__cpu_features__.get('FMA3', False) and __cpu_features__.get('AVX2', False)) + +IS_AVX512FP16 = __cpu_features__.get('AVX512FP16', False) + +# only run on linux with AVX, also avoid old glibc (numpy/numpy#20448). +runtest = (sys.platform.startswith('linux') + and IS_AVX and not _glibc_older_than("2.17")) +platform_skip = pytest.mark.skipif(not runtest, + reason="avoid testing inconsistent platform " + "library implementations") + +# convert string to hex function taken from: +# https://stackoverflow.com/questions/1592158/convert-hex-to-float # +def convert(s, datatype="np.float32"): + i = int(s, 16) # convert from hex to a Python int + if (datatype == "np.float64"): + cp = pointer(c_longlong(i)) # make this into a c long long integer + fp = cast(cp, POINTER(c_double)) # cast the int pointer to a double pointer + else: + cp = pointer(c_int(i)) # make this into a c integer + fp = cast(cp, POINTER(c_float)) # cast the int pointer to a float pointer + + return fp.contents.value # dereference the pointer, get the float + + +str_to_float = np.vectorize(convert) + +class TestAccuracy: + @platform_skip + def test_validate_transcendentals(self): + with np.errstate(all='ignore'): + data_dir = path.join(path.dirname(__file__), 'data') + files = os.listdir(data_dir) + files = list(filter(lambda f: f.endswith('.csv'), files)) + for filename in files: + filepath = path.join(data_dir, filename) + with open(filepath) as fid: + file_without_comments = ( + r for r in fid if r[0] not in ('$', '#') + ) + data = np.genfromtxt(file_without_comments, + dtype=('|S39', '|S39', '|S39', int), + names=('type', 'input', 'output', 'ulperr'), + delimiter=',', + skip_header=1) + npname = path.splitext(filename)[0].split('-')[3] + npfunc = getattr(np, npname) + for datatype in np.unique(data['type']): + data_subset = data[data['type'] == datatype] + data_input_str = data_subset['input'].astype(str) + data_output_str = data_subset['output'].astype(str) + data_type_str = data_subset['type'].astype(str) + + inval = np.array(str_to_float(data_input_str, + data_type_str), + dtype=eval(datatype)) + outval = np.array(str_to_float(data_output_str, + data_type_str), + dtype=eval(datatype)) + perm = np.random.permutation(len(inval)) + inval = inval[perm] + outval = outval[perm] + maxulperr = data_subset['ulperr'].max() + assert_array_max_ulp(npfunc(inval), outval, maxulperr) + + @pytest.mark.skipif(IS_AVX512FP16, + reason="SVML FP16 have slightly higher ULP errors") + @pytest.mark.parametrize("ufunc", UNARY_OBJECT_UFUNCS) + def test_validate_fp16_transcendentals(self, ufunc): + with np.errstate(all='ignore'): + arr = np.arange(65536, dtype=np.int16) + datafp16 = np.frombuffer(arr.tobytes(), dtype=np.float16) + datafp32 = datafp16.astype(np.float32) + assert_array_max_ulp(ufunc(datafp16), ufunc(datafp32), + maxulp=1, dtype=np.float16) + + @pytest.mark.skipif(not IS_AVX512FP16, + reason="lower ULP only apply for SVML FP16") + def test_validate_svml_fp16(self): + max_ulp_err = { + "arccos": 2.54, + "arccosh": 2.09, + "arcsin": 3.06, + "arcsinh": 1.51, + "arctan": 2.61, + "arctanh": 1.88, + "cbrt": 1.57, + "cos": 1.43, + "cosh": 1.33, + "exp2": 1.33, + "exp": 1.27, + "expm1": 0.53, + "log": 1.80, + "log10": 1.27, + "log1p": 1.88, + "log2": 1.80, + "sin": 1.88, + "sinh": 2.05, + "tan": 2.26, + "tanh": 3.00, + } + + with np.errstate(all='ignore'): + arr = np.arange(65536, dtype=np.int16) + datafp16 = np.frombuffer(arr.tobytes(), dtype=np.float16) + datafp32 = datafp16.astype(np.float32) + for func in max_ulp_err: + ufunc = getattr(np, func) + ulp = np.ceil(max_ulp_err[func]) + assert_array_max_ulp(ufunc(datafp16), ufunc(datafp32), + maxulp=ulp, dtype=np.float16) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_umath_complex.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_umath_complex.py new file mode 100644 index 0000000000000000000000000000000000000000..7012e7e357fe11139c5b0bfd2bcdeb082348138d --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_core/tests/test_umath_complex.py @@ -0,0 +1,631 @@ +import platform +import sys + +import pytest + +import numpy as np + +# import the c-extension module directly since _arg is not exported via umath +import numpy._core._multiarray_umath as ncu +from numpy.testing import ( + assert_almost_equal, + assert_array_equal, + assert_array_max_ulp, + assert_equal, + assert_raises, +) + +# TODO: branch cuts (use Pauli code) +# TODO: conj 'symmetry' +# TODO: FPU exceptions + +# At least on Windows the results of many complex functions are not conforming +# to the C99 standard. See ticket 1574. +# Ditto for Solaris (ticket 1642) and OS X on PowerPC. +# FIXME: this will probably change when we require full C99 compatibility +with np.errstate(all='ignore'): + functions_seem_flaky = ((np.exp(complex(np.inf, 0)).imag != 0) + or (np.log(complex(ncu.NZERO, 0)).imag != np.pi)) +# TODO: replace with a check on whether platform-provided C99 funcs are used +xfail_complex_tests = (not sys.platform.startswith('linux') or functions_seem_flaky) + +# TODO This can be xfail when the generator functions are got rid of. +platform_skip = pytest.mark.skipif(xfail_complex_tests, + reason="Inadequate C99 complex support") + + +class TestCexp: + def test_simple(self): + check = check_complex_value + f = np.exp + + check(f, 1, 0, np.exp(1), 0, False) + check(f, 0, 1, np.cos(1), np.sin(1), False) + + ref = np.exp(1) * complex(np.cos(1), np.sin(1)) + check(f, 1, 1, ref.real, ref.imag, False) + + @platform_skip + def test_special_values(self): + # C99: Section G 6.3.1 + + check = check_complex_value + f = np.exp + + # cexp(+-0 + 0i) is 1 + 0i + check(f, ncu.PZERO, 0, 1, 0, False) + check(f, ncu.NZERO, 0, 1, 0, False) + + # cexp(x + infi) is nan + nani for finite x and raises 'invalid' FPU + # exception + check(f, 1, np.inf, np.nan, np.nan) + check(f, -1, np.inf, np.nan, np.nan) + check(f, 0, np.inf, np.nan, np.nan) + + # cexp(inf + 0i) is inf + 0i + check(f, np.inf, 0, np.inf, 0) + + # cexp(-inf + yi) is +0 * (cos(y) + i sin(y)) for finite y + check(f, -np.inf, 1, ncu.PZERO, ncu.PZERO) + check(f, -np.inf, 0.75 * np.pi, ncu.NZERO, ncu.PZERO) + + # cexp(inf + yi) is +inf * (cos(y) + i sin(y)) for finite y + check(f, np.inf, 1, np.inf, np.inf) + check(f, np.inf, 0.75 * np.pi, -np.inf, np.inf) + + # cexp(-inf + inf i) is +-0 +- 0i (signs unspecified) + def _check_ninf_inf(dummy): + msgform = "cexp(-inf, inf) is (%f, %f), expected (+-0, +-0)" + with np.errstate(invalid='ignore'): + z = f(np.array(complex(-np.inf, np.inf))) + if z.real != 0 or z.imag != 0: + raise AssertionError(msgform % (z.real, z.imag)) + + _check_ninf_inf(None) + + # cexp(inf + inf i) is +-inf + NaNi and raised invalid FPU ex. + def _check_inf_inf(dummy): + msgform = "cexp(inf, inf) is (%f, %f), expected (+-inf, nan)" + with np.errstate(invalid='ignore'): + z = f(np.array(complex(np.inf, np.inf))) + if not np.isinf(z.real) or not np.isnan(z.imag): + raise AssertionError(msgform % (z.real, z.imag)) + + _check_inf_inf(None) + + # cexp(-inf + nan i) is +-0 +- 0i + def _check_ninf_nan(dummy): + msgform = "cexp(-inf, nan) is (%f, %f), expected (+-0, +-0)" + with np.errstate(invalid='ignore'): + z = f(np.array(complex(-np.inf, np.nan))) + if z.real != 0 or z.imag != 0: + raise AssertionError(msgform % (z.real, z.imag)) + + _check_ninf_nan(None) + + # cexp(inf + nan i) is +-inf + nan + def _check_inf_nan(dummy): + msgform = "cexp(-inf, nan) is (%f, %f), expected (+-inf, nan)" + with np.errstate(invalid='ignore'): + z = f(np.array(complex(np.inf, np.nan))) + if not np.isinf(z.real) or not np.isnan(z.imag): + raise AssertionError(msgform % (z.real, z.imag)) + + _check_inf_nan(None) + + # cexp(nan + yi) is nan + nani for y != 0 (optional: raises invalid FPU + # ex) + check(f, np.nan, 1, np.nan, np.nan) + check(f, np.nan, -1, np.nan, np.nan) + + check(f, np.nan, np.inf, np.nan, np.nan) + check(f, np.nan, -np.inf, np.nan, np.nan) + + # cexp(nan + nani) is nan + nani + check(f, np.nan, np.nan, np.nan, np.nan) + + # TODO This can be xfail when the generator functions are got rid of. + @pytest.mark.skip(reason="cexp(nan + 0I) is wrong on most platforms") + def test_special_values2(self): + # XXX: most implementations get it wrong here (including glibc <= 2.10) + # cexp(nan + 0i) is nan + 0i + check = check_complex_value + f = np.exp + + check(f, np.nan, 0, np.nan, 0) + +class TestClog: + def test_simple(self): + x = np.array([1 + 0j, 1 + 2j]) + y_r = np.log(np.abs(x)) + 1j * np.angle(x) + y = np.log(x) + assert_almost_equal(y, y_r) + + @platform_skip + @pytest.mark.skipif(platform.machine() == "armv5tel", reason="See gh-413.") + def test_special_values(self): + xl = [] + yl = [] + + # From C99 std (Sec 6.3.2) + # XXX: check exceptions raised + # --- raise for invalid fails. + + # clog(-0 + i0) returns -inf + i pi and raises the 'divide-by-zero' + # floating-point exception. + with np.errstate(divide='raise'): + x = np.array([ncu.NZERO], dtype=complex) + y = complex(-np.inf, np.pi) + assert_raises(FloatingPointError, np.log, x) + with np.errstate(divide='ignore'): + assert_almost_equal(np.log(x), y) + + xl.append(x) + yl.append(y) + + # clog(+0 + i0) returns -inf + i0 and raises the 'divide-by-zero' + # floating-point exception. + with np.errstate(divide='raise'): + x = np.array([0], dtype=complex) + y = complex(-np.inf, 0) + assert_raises(FloatingPointError, np.log, x) + with np.errstate(divide='ignore'): + assert_almost_equal(np.log(x), y) + + xl.append(x) + yl.append(y) + + # clog(x + i inf returns +inf + i pi /2, for finite x. + x = np.array([complex(1, np.inf)], dtype=complex) + y = complex(np.inf, 0.5 * np.pi) + assert_almost_equal(np.log(x), y) + xl.append(x) + yl.append(y) + + x = np.array([complex(-1, np.inf)], dtype=complex) + assert_almost_equal(np.log(x), y) + xl.append(x) + yl.append(y) + + # clog(x + iNaN) returns NaN + iNaN and optionally raises the + # 'invalid' floating- point exception, for finite x. + with np.errstate(invalid='raise'): + x = np.array([complex(1., np.nan)], dtype=complex) + y = complex(np.nan, np.nan) + #assert_raises(FloatingPointError, np.log, x) + with np.errstate(invalid='ignore'): + assert_almost_equal(np.log(x), y) + + xl.append(x) + yl.append(y) + + with np.errstate(invalid='raise'): + x = np.array([np.inf + 1j * np.nan], dtype=complex) + #assert_raises(FloatingPointError, np.log, x) + with np.errstate(invalid='ignore'): + assert_almost_equal(np.log(x), y) + + xl.append(x) + yl.append(y) + + # clog(- inf + iy) returns +inf + ipi , for finite positive-signed y. + x = np.array([-np.inf + 1j], dtype=complex) + y = complex(np.inf, np.pi) + assert_almost_equal(np.log(x), y) + xl.append(x) + yl.append(y) + + # clog(+ inf + iy) returns +inf + i0, for finite positive-signed y. + x = np.array([np.inf + 1j], dtype=complex) + y = complex(np.inf, 0) + assert_almost_equal(np.log(x), y) + xl.append(x) + yl.append(y) + + # clog(- inf + i inf) returns +inf + i3pi /4. + x = np.array([complex(-np.inf, np.inf)], dtype=complex) + y = complex(np.inf, 0.75 * np.pi) + assert_almost_equal(np.log(x), y) + xl.append(x) + yl.append(y) + + # clog(+ inf + i inf) returns +inf + ipi /4. + x = np.array([complex(np.inf, np.inf)], dtype=complex) + y = complex(np.inf, 0.25 * np.pi) + assert_almost_equal(np.log(x), y) + xl.append(x) + yl.append(y) + + # clog(+/- inf + iNaN) returns +inf + iNaN. + x = np.array([complex(np.inf, np.nan)], dtype=complex) + y = complex(np.inf, np.nan) + assert_almost_equal(np.log(x), y) + xl.append(x) + yl.append(y) + + x = np.array([complex(-np.inf, np.nan)], dtype=complex) + assert_almost_equal(np.log(x), y) + xl.append(x) + yl.append(y) + + # clog(NaN + iy) returns NaN + iNaN and optionally raises the + # 'invalid' floating-point exception, for finite y. + x = np.array([complex(np.nan, 1)], dtype=complex) + y = complex(np.nan, np.nan) + assert_almost_equal(np.log(x), y) + xl.append(x) + yl.append(y) + + # clog(NaN + i inf) returns +inf + iNaN. + x = np.array([complex(np.nan, np.inf)], dtype=complex) + y = complex(np.inf, np.nan) + assert_almost_equal(np.log(x), y) + xl.append(x) + yl.append(y) + + # clog(NaN + iNaN) returns NaN + iNaN. + x = np.array([complex(np.nan, np.nan)], dtype=complex) + y = complex(np.nan, np.nan) + assert_almost_equal(np.log(x), y) + xl.append(x) + yl.append(y) + + # clog(conj(z)) = conj(clog(z)). + xa = np.array(xl, dtype=complex) + ya = np.array(yl, dtype=complex) + with np.errstate(divide='ignore'): + for i in range(len(xa)): + assert_almost_equal(np.log(xa[i].conj()), ya[i].conj()) + + +class TestCsqrt: + + def test_simple(self): + # sqrt(1) + check_complex_value(np.sqrt, 1, 0, 1, 0) + + # sqrt(1i) + rres = 0.5 * np.sqrt(2) + ires = rres + check_complex_value(np.sqrt, 0, 1, rres, ires, False) + + # sqrt(-1) + check_complex_value(np.sqrt, -1, 0, 0, 1) + + def test_simple_conjugate(self): + ref = np.conj(np.sqrt(complex(1, 1))) + + def f(z): + return np.sqrt(np.conj(z)) + + check_complex_value(f, 1, 1, ref.real, ref.imag, False) + + #def test_branch_cut(self): + # _check_branch_cut(f, -1, 0, 1, -1) + + @platform_skip + def test_special_values(self): + # C99: Sec G 6.4.2 + + check = check_complex_value + f = np.sqrt + + # csqrt(+-0 + 0i) is 0 + 0i + check(f, ncu.PZERO, 0, 0, 0) + check(f, ncu.NZERO, 0, 0, 0) + + # csqrt(x + infi) is inf + infi for any x (including NaN) + check(f, 1, np.inf, np.inf, np.inf) + check(f, -1, np.inf, np.inf, np.inf) + + check(f, ncu.PZERO, np.inf, np.inf, np.inf) + check(f, ncu.NZERO, np.inf, np.inf, np.inf) + check(f, np.inf, np.inf, np.inf, np.inf) + check(f, -np.inf, np.inf, np.inf, np.inf) # noqa: E221 + check(f, -np.nan, np.inf, np.inf, np.inf) # noqa: E221 + + # csqrt(x + nani) is nan + nani for any finite x + check(f, 1, np.nan, np.nan, np.nan) + check(f, -1, np.nan, np.nan, np.nan) + check(f, 0, np.nan, np.nan, np.nan) + + # csqrt(-inf + yi) is +0 + infi for any finite y > 0 + check(f, -np.inf, 1, ncu.PZERO, np.inf) + + # csqrt(inf + yi) is +inf + 0i for any finite y > 0 + check(f, np.inf, 1, np.inf, ncu.PZERO) + + # csqrt(-inf + nani) is nan +- infi (both +i infi are valid) + def _check_ninf_nan(dummy): + msgform = "csqrt(-inf, nan) is (%f, %f), expected (nan, +-inf)" + z = np.sqrt(np.array(complex(-np.inf, np.nan))) + # FIXME: ugly workaround for isinf bug. + with np.errstate(invalid='ignore'): + if not (np.isnan(z.real) and np.isinf(z.imag)): + raise AssertionError(msgform % (z.real, z.imag)) + + _check_ninf_nan(None) + + # csqrt(+inf + nani) is inf + nani + check(f, np.inf, np.nan, np.inf, np.nan) + + # csqrt(nan + yi) is nan + nani for any finite y (infinite handled in x + # + nani) + check(f, np.nan, 0, np.nan, np.nan) + check(f, np.nan, 1, np.nan, np.nan) + check(f, np.nan, np.nan, np.nan, np.nan) + + # XXX: check for conj(csqrt(z)) == csqrt(conj(z)) (need to fix branch + # cuts first) + +class TestCpow: + def setup_method(self): + self.olderr = np.seterr(invalid='ignore') + + def teardown_method(self): + np.seterr(**self.olderr) + + def test_simple(self): + x = np.array([1 + 1j, 0 + 2j, 1 + 2j, np.inf, np.nan]) + y_r = x ** 2 + y = np.power(x, 2) + assert_almost_equal(y, y_r) + + def test_scalar(self): + x = np.array([1, 1j, 2, 2.5 + .37j, np.inf, np.nan]) + y = np.array([1, 1j, -0.5 + 1.5j, -0.5 + 1.5j, 2, 3]) + lx = list(range(len(x))) + + # Hardcode the expected `builtins.complex` values, + # as complex exponentiation is broken as of bpo-44698 + p_r = [ + 1 + 0j, + 0.20787957635076193 + 0j, + 0.35812203996480685 + 0.6097119028618724j, + 0.12659112128185032 + 0.48847676699581527j, + complex(np.inf, np.nan), + complex(np.nan, np.nan), + ] + + n_r = [x[i] ** y[i] for i in lx] + for i in lx: + assert_almost_equal(n_r[i], p_r[i], err_msg='Loop %d\n' % i) + + def test_array(self): + x = np.array([1, 1j, 2, 2.5 + .37j, np.inf, np.nan]) + y = np.array([1, 1j, -0.5 + 1.5j, -0.5 + 1.5j, 2, 3]) + lx = list(range(len(x))) + + # Hardcode the expected `builtins.complex` values, + # as complex exponentiation is broken as of bpo-44698 + p_r = [ + 1 + 0j, + 0.20787957635076193 + 0j, + 0.35812203996480685 + 0.6097119028618724j, + 0.12659112128185032 + 0.48847676699581527j, + complex(np.inf, np.nan), + complex(np.nan, np.nan), + ] + + n_r = x ** y + for i in lx: + assert_almost_equal(n_r[i], p_r[i], err_msg='Loop %d\n' % i) + +class TestCabs: + def setup_method(self): + self.olderr = np.seterr(invalid='ignore') + + def teardown_method(self): + np.seterr(**self.olderr) + + def test_simple(self): + x = np.array([1 + 1j, 0 + 2j, 1 + 2j, np.inf, np.nan]) + y_r = np.array([np.sqrt(2.), 2, np.sqrt(5), np.inf, np.nan]) + y = np.abs(x) + assert_almost_equal(y, y_r) + + def test_fabs(self): + # Test that np.abs(x +- 0j) == np.abs(x) (as mandated by C99 for cabs) + x = np.array([1 + 0j], dtype=complex) + assert_array_equal(np.abs(x), np.real(x)) + + x = np.array([complex(1, ncu.NZERO)], dtype=complex) + assert_array_equal(np.abs(x), np.real(x)) + + x = np.array([complex(np.inf, ncu.NZERO)], dtype=complex) + assert_array_equal(np.abs(x), np.real(x)) + + x = np.array([complex(np.nan, ncu.NZERO)], dtype=complex) + assert_array_equal(np.abs(x), np.real(x)) + + def test_cabs_inf_nan(self): + x, y = [], [] + + # cabs(+-nan + nani) returns nan + x.append(np.nan) + y.append(np.nan) + check_real_value(np.abs, np.nan, np.nan, np.nan) + + x.append(np.nan) + y.append(-np.nan) + check_real_value(np.abs, -np.nan, np.nan, np.nan) + + # According to C99 standard, if exactly one of the real/part is inf and + # the other nan, then cabs should return inf + x.append(np.inf) + y.append(np.nan) + check_real_value(np.abs, np.inf, np.nan, np.inf) + + x.append(-np.inf) + y.append(np.nan) + check_real_value(np.abs, -np.inf, np.nan, np.inf) + + # cabs(conj(z)) == conj(cabs(z)) (= cabs(z)) + def f(a): + return np.abs(np.conj(a)) + + def g(a, b): + return np.abs(complex(a, b)) + + xa = np.array(x, dtype=complex) + assert len(xa) == len(x) == len(y) + for xi, yi in zip(x, y): + ref = g(xi, yi) + check_real_value(f, xi, yi, ref) + +class TestCarg: + def test_simple(self): + check_real_value(ncu._arg, 1, 0, 0, False) + check_real_value(ncu._arg, 0, 1, 0.5 * np.pi, False) + + check_real_value(ncu._arg, 1, 1, 0.25 * np.pi, False) + check_real_value(ncu._arg, ncu.PZERO, ncu.PZERO, ncu.PZERO) + + # TODO This can be xfail when the generator functions are got rid of. + @pytest.mark.skip( + reason="Complex arithmetic with signed zero fails on most platforms") + def test_zero(self): + # carg(-0 +- 0i) returns +- pi + check_real_value(ncu._arg, ncu.NZERO, ncu.PZERO, np.pi, False) + check_real_value(ncu._arg, ncu.NZERO, ncu.NZERO, -np.pi, False) + + # carg(+0 +- 0i) returns +- 0 + check_real_value(ncu._arg, ncu.PZERO, ncu.PZERO, ncu.PZERO) + check_real_value(ncu._arg, ncu.PZERO, ncu.NZERO, ncu.NZERO) + + # carg(x +- 0i) returns +- 0 for x > 0 + check_real_value(ncu._arg, 1, ncu.PZERO, ncu.PZERO, False) + check_real_value(ncu._arg, 1, ncu.NZERO, ncu.NZERO, False) + + # carg(x +- 0i) returns +- pi for x < 0 + check_real_value(ncu._arg, -1, ncu.PZERO, np.pi, False) + check_real_value(ncu._arg, -1, ncu.NZERO, -np.pi, False) + + # carg(+- 0 + yi) returns pi/2 for y > 0 + check_real_value(ncu._arg, ncu.PZERO, 1, 0.5 * np.pi, False) + check_real_value(ncu._arg, ncu.NZERO, 1, 0.5 * np.pi, False) + + # carg(+- 0 + yi) returns -pi/2 for y < 0 + check_real_value(ncu._arg, ncu.PZERO, -1, 0.5 * np.pi, False) + check_real_value(ncu._arg, ncu.NZERO, -1, -0.5 * np.pi, False) + + #def test_branch_cuts(self): + # _check_branch_cut(ncu._arg, -1, 1j, -1, 1) + + def test_special_values(self): + # carg(-np.inf +- yi) returns +-pi for finite y > 0 + check_real_value(ncu._arg, -np.inf, 1, np.pi, False) + check_real_value(ncu._arg, -np.inf, -1, -np.pi, False) + + # carg(np.inf +- yi) returns +-0 for finite y > 0 + check_real_value(ncu._arg, np.inf, 1, ncu.PZERO, False) + check_real_value(ncu._arg, np.inf, -1, ncu.NZERO, False) + + # carg(x +- np.infi) returns +-pi/2 for finite x + check_real_value(ncu._arg, 1, np.inf, 0.5 * np.pi, False) + check_real_value(ncu._arg, 1, -np.inf, -0.5 * np.pi, False) + + # carg(-np.inf +- np.infi) returns +-3pi/4 + check_real_value(ncu._arg, -np.inf, np.inf, 0.75 * np.pi, False) + check_real_value(ncu._arg, -np.inf, -np.inf, -0.75 * np.pi, False) + + # carg(np.inf +- np.infi) returns +-pi/4 + check_real_value(ncu._arg, np.inf, np.inf, 0.25 * np.pi, False) + check_real_value(ncu._arg, np.inf, -np.inf, -0.25 * np.pi, False) + + # carg(x + yi) returns np.nan if x or y is nan + check_real_value(ncu._arg, np.nan, 0, np.nan, False) + check_real_value(ncu._arg, 0, np.nan, np.nan, False) + + check_real_value(ncu._arg, np.nan, np.inf, np.nan, False) + check_real_value(ncu._arg, np.inf, np.nan, np.nan, False) + + +def check_real_value(f, x1, y1, x, exact=True): + z1 = np.array([complex(x1, y1)]) + if exact: + assert_equal(f(z1), x) + else: + assert_almost_equal(f(z1), x) + + +def check_complex_value(f, x1, y1, x2, y2, exact=True): + z1 = np.array([complex(x1, y1)]) + z2 = complex(x2, y2) + with np.errstate(invalid='ignore'): + if exact: + assert_equal(f(z1), z2) + else: + assert_almost_equal(f(z1), z2) + +class TestSpecialComplexAVX: + @pytest.mark.parametrize("stride", [-4, -2, -1, 1, 2, 4]) + @pytest.mark.parametrize("astype", [np.complex64, np.complex128]) + def test_array(self, stride, astype): + nan = np.nan + inf = np.inf + arr = np.array([complex(nan, nan), + complex(nan, inf), + complex(inf, nan), + complex(inf, inf), + complex(0., inf), + complex(inf, 0.), + complex(0., 0.), + complex(0., nan), + complex(nan, 0.)], dtype=astype) + abs_true = np.array([nan, inf, inf, inf, inf, inf, 0., nan, nan], + dtype=arr.real.dtype) + sq_true = np.array([complex(nan, nan), + complex(nan, nan), + complex(nan, nan), + complex(nan, inf), + complex(-inf, nan), + complex(inf, nan), + complex(0., 0.), + complex(nan, nan), + complex(nan, nan)], dtype=astype) + with np.errstate(invalid='ignore'): + assert_equal(np.abs(arr[::stride]), abs_true[::stride]) + assert_equal(np.square(arr[::stride]), sq_true[::stride]) + +class TestComplexAbsoluteAVX: + @pytest.mark.parametrize("arraysize", + [1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 18, 19]) + @pytest.mark.parametrize("stride", [-4, -3, -2, -1, 1, 2, 3, 4]) + @pytest.mark.parametrize("astype", [np.complex64, np.complex128]) + # test to ensure masking and strides work as intended in the AVX implementation + def test_array(self, arraysize, stride, astype): + arr = np.ones(arraysize, dtype=astype) + abs_true = np.ones(arraysize, dtype=arr.real.dtype) + assert_equal(np.abs(arr[::stride]), abs_true[::stride]) + +# Testcase taken as is from https://github.com/numpy/numpy/issues/16660 +class TestComplexAbsoluteMixedDTypes: + @pytest.mark.parametrize("stride", [-4, -3, -2, -1, 1, 2, 3, 4]) + @pytest.mark.parametrize("astype", [np.complex64, np.complex128]) + @pytest.mark.parametrize("func", ['abs', 'square', 'conjugate']) + def test_array(self, stride, astype, func): + dtype = [('template_id', 'U') + uni_arr2 = str_arr.astype(' _ExtOjbDict: ... +def _make_extobj(*, all: _ErrKind = ..., **kwargs: Unpack[_ExtOjbDict]) -> CapsuleType: ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_distributor_init.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_distributor_init.py new file mode 100644 index 0000000000000000000000000000000000000000..f608036a2405528c0ddc4874b25b223dbe22c385 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_distributor_init.py @@ -0,0 +1,15 @@ +""" Distributor init file + +Distributors: you can add custom code here to support particular distributions +of numpy. + +For example, this is a good place to put any BLAS/LAPACK initialization code. + +The numpy standard source distribution will not put code in this file, so you +can safely replace this file with your own version. +""" + +try: + from . import _distributor_init_local # noqa: F401 +except ImportError: + pass diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_distributor_init.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_distributor_init.pyi new file mode 100644 index 0000000000000000000000000000000000000000..94456aba2bcfaf1166eeb81199dff4515c8b9474 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_distributor_init.pyi @@ -0,0 +1 @@ +# intentionally left blank diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_expired_attrs_2_0.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_expired_attrs_2_0.py new file mode 100644 index 0000000000000000000000000000000000000000..2eebf95bc558c609bd665ab120746420a5ccb432 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_expired_attrs_2_0.py @@ -0,0 +1,78 @@ +""" +Dict of expired attributes that are discontinued since 2.0 release. +Each item is associated with a migration note. +""" + +__expired_attributes__ = { + "geterrobj": "Use the np.errstate context manager instead.", + "seterrobj": "Use the np.errstate context manager instead.", + "cast": "Use `np.asarray(arr, dtype=dtype)` instead.", + "source": "Use `inspect.getsource` instead.", + "lookfor": "Search NumPy's documentation directly.", + "who": "Use an IDE variable explorer or `locals()` instead.", + "fastCopyAndTranspose": "Use `arr.T.copy()` instead.", + "set_numeric_ops": + "For the general case, use `PyUFunc_ReplaceLoopBySignature`. " + "For ndarray subclasses, define the ``__array_ufunc__`` method " + "and override the relevant ufunc.", + "NINF": "Use `-np.inf` instead.", + "PINF": "Use `np.inf` instead.", + "NZERO": "Use `-0.0` instead.", + "PZERO": "Use `0.0` instead.", + "add_newdoc": + "It's still available as `np.lib.add_newdoc`.", + "add_docstring": + "It's still available as `np.lib.add_docstring`.", + "add_newdoc_ufunc": + "It's an internal function and doesn't have a replacement.", + "safe_eval": "Use `ast.literal_eval` instead.", + "float_": "Use `np.float64` instead.", + "complex_": "Use `np.complex128` instead.", + "longfloat": "Use `np.longdouble` instead.", + "singlecomplex": "Use `np.complex64` instead.", + "cfloat": "Use `np.complex128` instead.", + "longcomplex": "Use `np.clongdouble` instead.", + "clongfloat": "Use `np.clongdouble` instead.", + "string_": "Use `np.bytes_` instead.", + "unicode_": "Use `np.str_` instead.", + "Inf": "Use `np.inf` instead.", + "Infinity": "Use `np.inf` instead.", + "NaN": "Use `np.nan` instead.", + "infty": "Use `np.inf` instead.", + "issctype": "Use `issubclass(rep, np.generic)` instead.", + "maximum_sctype": + "Use a specific dtype instead. You should avoid relying " + "on any implicit mechanism and select the largest dtype of " + "a kind explicitly in the code.", + "obj2sctype": "Use `np.dtype(obj).type` instead.", + "sctype2char": "Use `np.dtype(obj).char` instead.", + "sctypes": "Access dtypes explicitly instead.", + "issubsctype": "Use `np.issubdtype` instead.", + "set_string_function": + "Use `np.set_printoptions` instead with a formatter for " + "custom printing of NumPy objects.", + "asfarray": "Use `np.asarray` with a proper dtype instead.", + "issubclass_": "Use `issubclass` builtin instead.", + "tracemalloc_domain": "It's now available from `np.lib`.", + "mat": "Use `np.asmatrix` instead.", + "recfromcsv": "Use `np.genfromtxt` with comma delimiter instead.", + "recfromtxt": "Use `np.genfromtxt` instead.", + "deprecate": "Emit `DeprecationWarning` with `warnings.warn` directly, " + "or use `typing.deprecated`.", + "deprecate_with_doc": "Emit `DeprecationWarning` with `warnings.warn` " + "directly, or use `typing.deprecated`.", + "find_common_type": + "Use `numpy.promote_types` or `numpy.result_type` instead. " + "To achieve semantics for the `scalar_types` argument, use " + "`numpy.result_type` and pass the Python values `0`, `0.0`, or `0j`.", + "round_": "Use `np.round` instead.", + "get_array_wrap": "", + "DataSource": "It's still available as `np.lib.npyio.DataSource`.", + "nbytes": "Use `np.dtype().itemsize` instead.", + "byte_bounds": "Now it's available under `np.lib.array_utils.byte_bounds`", + "compare_chararrays": + "It's still available as `np.char.compare_chararrays`.", + "format_parser": "It's still available as `np.rec.format_parser`.", + "alltrue": "Use `np.all` instead.", + "sometrue": "Use `np.any` instead.", +} diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_expired_attrs_2_0.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_expired_attrs_2_0.pyi new file mode 100644 index 0000000000000000000000000000000000000000..de6c2d10f9b0264238094e3ce9f8affafe5ca7a8 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_expired_attrs_2_0.pyi @@ -0,0 +1,61 @@ +from typing import Final, TypedDict, final, type_check_only + +@final +@type_check_only +class _ExpiredAttributesType(TypedDict): + geterrobj: str + seterrobj: str + cast: str + source: str + lookfor: str + who: str + fastCopyAndTranspose: str + set_numeric_ops: str + NINF: str + PINF: str + NZERO: str + PZERO: str + add_newdoc: str + add_docstring: str + add_newdoc_ufunc: str + safe_eval: str + float_: str + complex_: str + longfloat: str + singlecomplex: str + cfloat: str + longcomplex: str + clongfloat: str + string_: str + unicode_: str + Inf: str + Infinity: str + NaN: str + infty: str + issctype: str + maximum_sctype: str + obj2sctype: str + sctype2char: str + sctypes: str + issubsctype: str + set_string_function: str + asfarray: str + issubclass_: str + tracemalloc_domain: str + mat: str + recfromcsv: str + recfromtxt: str + deprecate: str + deprecate_with_doc: str + find_common_type: str + round_: str + get_array_wrap: str + DataSource: str + nbytes: str + byte_bounds: str + compare_chararrays: str + format_parser: str + alltrue: str + sometrue: str + +__expired_attributes__: Final[_ExpiredAttributesType] = ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_globals.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_globals.py new file mode 100644 index 0000000000000000000000000000000000000000..ada8d5c41af0c0ff939a28b6d690e2e392deedb9 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_globals.py @@ -0,0 +1,121 @@ +""" +Module defining global singleton classes. + +This module raises a RuntimeError if an attempt to reload it is made. In that +way the identities of the classes defined here are fixed and will remain so +even if numpy itself is reloaded. In particular, a function like the following +will still work correctly after numpy is reloaded:: + + def foo(arg=np._NoValue): + if arg is np._NoValue: + ... + +That was not the case when the singleton classes were defined in the numpy +``__init__.py`` file. See gh-7844 for a discussion of the reload problem that +motivated this module. + +""" +import enum + +from ._utils import set_module as _set_module + +__all__ = ['_NoValue', '_CopyMode'] + + +# Disallow reloading this module so as to preserve the identities of the +# classes defined here. +if '_is_loaded' in globals(): + raise RuntimeError('Reloading numpy._globals is not allowed') +_is_loaded = True + + +class _NoValueType: + """Special keyword value. + + The instance of this class may be used as the default value assigned to a + keyword if no other obvious default (e.g., `None`) is suitable, + + Common reasons for using this keyword are: + + - A new keyword is added to a function, and that function forwards its + inputs to another function or method which can be defined outside of + NumPy. For example, ``np.std(x)`` calls ``x.std``, so when a ``keepdims`` + keyword was added that could only be forwarded if the user explicitly + specified ``keepdims``; downstream array libraries may not have added + the same keyword, so adding ``x.std(..., keepdims=keepdims)`` + unconditionally could have broken previously working code. + - A keyword is being deprecated, and a deprecation warning must only be + emitted when the keyword is used. + + """ + __instance = None + + def __new__(cls): + # ensure that only one instance exists + if not cls.__instance: + cls.__instance = super().__new__(cls) + return cls.__instance + + def __repr__(self): + return "" + + +_NoValue = _NoValueType() + + +@_set_module("numpy") +class _CopyMode(enum.Enum): + """ + An enumeration for the copy modes supported + by numpy.copy() and numpy.array(). The following three modes are supported, + + - ALWAYS: This means that a deep copy of the input + array will always be taken. + - IF_NEEDED: This means that a deep copy of the input + array will be taken only if necessary. + - NEVER: This means that the deep copy will never be taken. + If a copy cannot be avoided then a `ValueError` will be + raised. + + Note that the buffer-protocol could in theory do copies. NumPy currently + assumes an object exporting the buffer protocol will never do this. + """ + + ALWAYS = True + NEVER = False + IF_NEEDED = 2 + + def __bool__(self): + # For backwards compatibility + if self == _CopyMode.ALWAYS: + return True + + if self == _CopyMode.NEVER: + return False + + raise ValueError(f"{self} is neither True nor False.") + + +class _SignatureDescriptor: + # A descriptor to store on the ufunc __dict__ that avoids definig a + # signature for the ufunc class/type but allows the instance to have one. + # This is needed because inspect.signature() chokes on normal properties + # (as of 3.14 at least). + # We could also set __signature__ on the instance but this allows deferred + # computation of the signature. + def __get__(self, obj, objtype=None): + # Delay import, not a critical path but need to avoid circular import. + from numpy._core._internal import _ufunc_inspect_signature_builder + + if obj is None: + # could also return None, which is accepted as "not set" by + # inspect.signature(). + raise AttributeError( + "type object 'numpy.ufunc' has no attribute '__signature__'") + + # Store on the instance, after this the descriptor won't be used. + obj.__signature__ = _ufunc_inspect_signature_builder(obj) + return obj.__signature__ + + +_signature_descriptor = _SignatureDescriptor() diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_globals.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_globals.pyi new file mode 100644 index 0000000000000000000000000000000000000000..b2231a9636b0863be24555734d66df6da3464ac4 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_globals.pyi @@ -0,0 +1,17 @@ +__all__ = ["_CopyMode", "_NoValue"] + +import enum +from typing import Final, final + +@final +class _CopyMode(enum.Enum): + ALWAYS = True + NEVER = False + IF_NEEDED = 2 + + def __bool__(self, /) -> bool: ... + +@final +class _NoValueType: ... + +_NoValue: Final[_NoValueType] = ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/.___init__.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/.___init__.py new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/.___init__.py differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/.___init__.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/.___init__.pyi new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/.___init__.pyi differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/.___pycache__ b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/.___pycache__ new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/.___pycache__ differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/._hook-numpy.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/._hook-numpy.py new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/._hook-numpy.py differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/._hook-numpy.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/._hook-numpy.pyi new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/._hook-numpy.pyi differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/._tests b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/._tests new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/._tests differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/__init__.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/__init__.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/__init__.pyi new file mode 100644 index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391 diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/hook-numpy.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/hook-numpy.py new file mode 100644 index 0000000000000000000000000000000000000000..61c224b338104d47e6d1b888d0face3b874f5e34 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/hook-numpy.py @@ -0,0 +1,36 @@ +"""This hook should collect all binary files and any hidden modules that numpy +needs. + +Our (some-what inadequate) docs for writing PyInstaller hooks are kept here: +https://pyinstaller.readthedocs.io/en/stable/hooks.html + +""" +from PyInstaller.compat import is_pure_conda +from PyInstaller.utils.hooks import collect_dynamic_libs + +# Collect all DLLs inside numpy's installation folder, dump them into built +# app's root. +binaries = collect_dynamic_libs("numpy", ".") + +# If using Conda without any non-conda virtual environment manager: +if is_pure_conda: + # Assume running the NumPy from Conda-forge and collect it's DLLs from the + # communal Conda bin directory. DLLs from NumPy's dependencies must also be + # collected to capture MKL, OpenBlas, OpenMP, etc. + from PyInstaller.utils.hooks import conda_support + datas = conda_support.collect_dynamic_libs("numpy", dependencies=True) + +# Submodules PyInstaller cannot detect. `_dtype_ctypes` is only imported +# from C and `_multiarray_tests` is used in tests (which are not packed). +hiddenimports = ['numpy._core._dtype_ctypes', 'numpy._core._multiarray_tests'] + +# Remove testing and building code and packages that are referenced throughout +# NumPy but are not really dependencies. +excludedimports = [ + "scipy", + "pytest", + "f2py", + "setuptools", + "distutils", + "numpy.distutils", +] diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/hook-numpy.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/hook-numpy.pyi new file mode 100644 index 0000000000000000000000000000000000000000..6da4914d7e5adf4fbd0c90500b8b14fc9f1e908c --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/hook-numpy.pyi @@ -0,0 +1,6 @@ +from typing import Final + +binaries: Final[list[tuple[str, str]]] = ... + +hiddenimports: Final[list[str]] = ... +excludedimports: Final[list[str]] = ... diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/.___init__.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/.___init__.py new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/.___init__.py differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/.___pycache__ b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/.___pycache__ new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/.___pycache__ differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/._pyinstaller-smoke.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/._pyinstaller-smoke.py new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/._pyinstaller-smoke.py differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/._test_pyinstaller.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/._test_pyinstaller.py new file mode 100644 index 0000000000000000000000000000000000000000..ee537d225f1b1eed0d0f4ed0b171fdc63ca71d82 Binary files /dev/null and b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/._test_pyinstaller.py differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/__init__.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..4ed8fdd53f8c7e2651269830cedfee4173cd46d7 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/__init__.py @@ -0,0 +1,16 @@ +import pytest + +from numpy.testing import IS_EDITABLE, IS_WASM + +if IS_WASM: + pytest.skip( + "WASM/Pyodide does not use or support Fortran", + allow_module_level=True + ) + + +if IS_EDITABLE: + pytest.skip( + "Editable install doesn't support tests with a compile step", + allow_module_level=True + ) diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/pyinstaller-smoke.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/pyinstaller-smoke.py new file mode 100644 index 0000000000000000000000000000000000000000..eb28070e38baf80223fe0178ac0a7c0f5732a2c8 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/pyinstaller-smoke.py @@ -0,0 +1,32 @@ +"""A crude *bit of everything* smoke test to verify PyInstaller compatibility. + +PyInstaller typically goes wrong by forgetting to package modules, extension +modules or shared libraries. This script should aim to touch as many of those +as possible in an attempt to trip a ModuleNotFoundError or a DLL load failure +due to an uncollected resource. Missing resources are unlikely to lead to +arithmetic errors so there's generally no need to verify any calculation's +output - merely that it made it to the end OK. This script should not +explicitly import any of numpy's submodules as that gives PyInstaller undue +hints that those submodules exist and should be collected (accessing implicitly +loaded submodules is OK). + +""" +import numpy as np + +a = np.arange(1., 10.).reshape((3, 3)) % 5 +np.linalg.det(a) +a @ a +a @ a.T +np.linalg.inv(a) +np.sin(np.exp(a)) +np.linalg.svd(a) +np.linalg.eigh(a) + +np.unique(np.random.randint(0, 10, 100)) +np.sort(np.random.uniform(0, 10, 100)) + +np.fft.fft(np.exp(2j * np.pi * np.arange(8) / 8)) +np.ma.masked_array(np.arange(10), np.random.rand(10) < .5).sum() +np.polynomial.Legendre([7, 8, 9]).roots() + +print("I made it!") diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/test_pyinstaller.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/test_pyinstaller.py new file mode 100644 index 0000000000000000000000000000000000000000..a9061da19b88c4243a3fd28bf05fd2986292d836 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_pyinstaller/tests/test_pyinstaller.py @@ -0,0 +1,35 @@ +import subprocess +from pathlib import Path + +import pytest + + +# PyInstaller has been very unproactive about replacing 'imp' with 'importlib'. +@pytest.mark.filterwarnings('ignore::DeprecationWarning') +# It also leaks io.BytesIO()s. +@pytest.mark.filterwarnings('ignore::ResourceWarning') +@pytest.mark.parametrize("mode", ["--onedir", "--onefile"]) +@pytest.mark.slow +def test_pyinstaller(mode, tmp_path): + """Compile and run pyinstaller-smoke.py using PyInstaller.""" + + pyinstaller_cli = pytest.importorskip("PyInstaller.__main__").run + + source = Path(__file__).with_name("pyinstaller-smoke.py").resolve() + args = [ + # Place all generated files in ``tmp_path``. + '--workpath', str(tmp_path / "build"), + '--distpath', str(tmp_path / "dist"), + '--specpath', str(tmp_path), + mode, + str(source), + ] + pyinstaller_cli(args) + + if mode == "--onefile": + exe = tmp_path / "dist" / source.stem + else: + exe = tmp_path / "dist" / source.stem / source.stem + + p = subprocess.run([str(exe)], check=True, stdout=subprocess.PIPE) + assert p.stdout.strip() == b"I made it!" diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pytesttester.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_pytesttester.py new file mode 100644 index 0000000000000000000000000000000000000000..77342e44aea0251c513dd0ed7a8fb67b074e298f --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_pytesttester.py @@ -0,0 +1,201 @@ +""" +Pytest test running. + +This module implements the ``test()`` function for NumPy modules. The usual +boiler plate for doing that is to put the following in the module +``__init__.py`` file:: + + from numpy._pytesttester import PytestTester + test = PytestTester(__name__) + del PytestTester + + +Warnings filtering and other runtime settings should be dealt with in the +``pytest.ini`` file in the numpy repo root. The behavior of the test depends on +whether or not that file is found as follows: + +* ``pytest.ini`` is present (develop mode) + All warnings except those explicitly filtered out are raised as error. +* ``pytest.ini`` is absent (release mode) + DeprecationWarnings and PendingDeprecationWarnings are ignored, other + warnings are passed through. + +In practice, tests run from the numpy repo are run in development mode with +``spin``, through the standard ``spin test`` invocation or from an inplace +build with ``pytest numpy``. + +This module is imported by every numpy subpackage, so lies at the top level to +simplify circular import issues. For the same reason, it contains no numpy +imports at module scope, instead importing numpy within function calls. +""" +import os +import sys + +__all__ = ['PytestTester'] + + +def _show_numpy_info(): + import numpy as np + + print(f"NumPy version {np.__version__}") + info = np.lib._utils_impl._opt_info() + print("NumPy CPU features: ", (info or 'nothing enabled')) + + +class PytestTester: + """ + Pytest test runner. + + A test function is typically added to a package's __init__.py like so:: + + from numpy._pytesttester import PytestTester + test = PytestTester(__name__).test + del PytestTester + + Calling this test function finds and runs all tests associated with the + module and all its sub-modules. + + Attributes + ---------- + module_name : str + Full path to the package to test. + + Parameters + ---------- + module_name : module name + The name of the module to test. + + Notes + ----- + Unlike the previous ``nose``-based implementation, this class is not + publicly exposed as it performs some ``numpy``-specific warning + suppression. + + """ + def __init__(self, module_name): + self.module_name = module_name + self.__module__ = module_name + + def __call__(self, label='fast', verbose=1, extra_argv=None, + doctests=False, coverage=False, durations=-1, tests=None): + """ + Run tests for module using pytest. + + Parameters + ---------- + label : {'fast', 'full'}, optional + Identifies the tests to run. When set to 'fast', tests decorated + with `pytest.mark.slow` are skipped, when 'full', the slow marker + is ignored. + verbose : int, optional + Verbosity value for test outputs, in the range 1-3. Default is 1. + extra_argv : list, optional + List with any extra arguments to pass to pytests. + doctests : bool, optional + .. note:: Not supported + coverage : bool, optional + If True, report coverage of NumPy code. Default is False. + Requires installation of (pip) pytest-cov. + durations : int, optional + If < 0, do nothing, If 0, report time of all tests, if > 0, + report the time of the slowest `timer` tests. Default is -1. + tests : test or list of tests + Tests to be executed with pytest '--pyargs' + + Returns + ------- + result : bool + Return True on success, false otherwise. + + Notes + ----- + Each NumPy module exposes `test` in its namespace to run all tests for + it. For example, to run all tests for numpy.lib: + + >>> np.lib.test() #doctest: +SKIP + + Examples + -------- + >>> result = np.lib.test() #doctest: +SKIP + ... + 1023 passed, 2 skipped, 6 deselected, 1 xfailed in 10.39 seconds + >>> result + True + + """ + import warnings + + import pytest + + module = sys.modules[self.module_name] + module_path = os.path.abspath(module.__path__[0]) + + # setup the pytest arguments + pytest_args = ["-l"] + + # offset verbosity. The "-q" cancels a "-v". + pytest_args += ["-q"] + + if sys.version_info < (3, 12): + with warnings.catch_warnings(): + warnings.simplefilter("always") + # Filter out distutils cpu warnings (could be localized to + # distutils tests). ASV has problems with top level import, + # so fetch module for suppression here. + from numpy.distutils import cpuinfo # noqa: F401 + + # Filter out annoying import messages. Want these in both develop and + # release mode. + pytest_args += [ + "-W ignore:Not importing directory", + "-W ignore:numpy.dtype size changed", + "-W ignore:numpy.ufunc size changed", + "-W ignore::UserWarning:cpuinfo", + ] + + # When testing matrices, ignore their PendingDeprecationWarnings + pytest_args += [ + "-W ignore:the matrix subclass is not", + "-W ignore:Importing from numpy.matlib is", + ] + + if doctests: + pytest_args += ["--doctest-modules"] + + if extra_argv: + pytest_args += list(extra_argv) + + if verbose > 1: + pytest_args += ["-" + "v" * (verbose - 1)] + + if coverage: + pytest_args += ["--cov=" + module_path] + + if label == "fast": + # not importing at the top level to avoid circular import of module + from numpy.testing import IS_PYPY + if IS_PYPY: + pytest_args += ["-m", "not slow and not slow_pypy"] + else: + pytest_args += ["-m", "not slow"] + + elif label != "full": + pytest_args += ["-m", label] + + if durations >= 0: + pytest_args += [f"--durations={durations}"] + + if tests is None: + tests = [self.module_name] + + pytest_args += ["--pyargs"] + list(tests) + + # run tests. + _show_numpy_info() + + try: + code = pytest.main(pytest_args) + except SystemExit as exc: + code = exc.code + + return code == 0 diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_pytesttester.pyi b/.venv_haddock/lib/python3.12/site-packages/numpy/_pytesttester.pyi new file mode 100644 index 0000000000000000000000000000000000000000..bd71239314b409102656a2a2826867f737876227 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_pytesttester.pyi @@ -0,0 +1,18 @@ +from collections.abc import Iterable +from typing import Literal as L + +__all__ = ["PytestTester"] + +class PytestTester: + module_name: str + def __init__(self, module_name: str) -> None: ... + def __call__( + self, + label: L["fast", "full"] = "fast", + verbose: int = 1, + extra_argv: Iterable[str] | None = None, + doctests: L[False] = False, + coverage: 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b/.venv_haddock/lib/python3.12/site-packages/numpy/_typing/.__ufunc.pyi differ diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_typing/__init__.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_typing/__init__.py new file mode 100644 index 0000000000000000000000000000000000000000..22eb6e3f30bb98948782cc88f6ebae7c2092a968 --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_typing/__init__.py @@ -0,0 +1,173 @@ +"""Private counterpart of ``numpy.typing``.""" + +import sys + +from ._array_like import ( + NDArray as NDArray, + _ArrayLike as _ArrayLike, + _ArrayLikeAnyString_co as _ArrayLikeAnyString_co, + _ArrayLikeBool_co as _ArrayLikeBool_co, + _ArrayLikeBytes_co as _ArrayLikeBytes_co, + _ArrayLikeComplex128_co as _ArrayLikeComplex128_co, + _ArrayLikeComplex_co as _ArrayLikeComplex_co, + _ArrayLikeDT64_co as _ArrayLikeDT64_co, + _ArrayLikeFloat64_co as _ArrayLikeFloat64_co, + _ArrayLikeFloat_co as _ArrayLikeFloat_co, + _ArrayLikeInt as _ArrayLikeInt, + _ArrayLikeInt_co as _ArrayLikeInt_co, + _ArrayLikeNumber_co as _ArrayLikeNumber_co, + _ArrayLikeObject_co as _ArrayLikeObject_co, + _ArrayLikeStr_co as _ArrayLikeStr_co, + _ArrayLikeString_co as _ArrayLikeString_co, + _ArrayLikeTD64_co as _ArrayLikeTD64_co, + _ArrayLikeUInt_co as _ArrayLikeUInt_co, + _ArrayLikeVoid_co as _ArrayLikeVoid_co, + _FiniteNestedSequence as _FiniteNestedSequence, + _SupportsArray as _SupportsArray, + _SupportsArrayFunc as _SupportsArrayFunc, +) + +# +from ._char_codes import ( + _BoolCodes as _BoolCodes, + _ByteCodes as _ByteCodes, + _BytesCodes as _BytesCodes, + _CDoubleCodes as _CDoubleCodes, + _CharacterCodes as _CharacterCodes, + _CLongDoubleCodes as _CLongDoubleCodes, + _Complex64Codes as _Complex64Codes, + _Complex128Codes as _Complex128Codes, + _ComplexFloatingCodes as _ComplexFloatingCodes, + _CSingleCodes as _CSingleCodes, + _DoubleCodes as _DoubleCodes, + _DT64Codes as _DT64Codes, + _FlexibleCodes as _FlexibleCodes, + _Float16Codes as _Float16Codes, + _Float32Codes as _Float32Codes, + _Float64Codes as _Float64Codes, + _FloatingCodes as _FloatingCodes, + _GenericCodes as _GenericCodes, + _HalfCodes as _HalfCodes, + _InexactCodes as _InexactCodes, + _Int8Codes as _Int8Codes, + _Int16Codes as _Int16Codes, + _Int32Codes as _Int32Codes, + _Int64Codes as _Int64Codes, + _IntCCodes as _IntCCodes, + _IntCodes as _IntCodes, + _IntegerCodes as _IntegerCodes, + _IntPCodes as _IntPCodes, + _LongCodes as _LongCodes, + _LongDoubleCodes as _LongDoubleCodes, + _LongLongCodes as _LongLongCodes, + _NumberCodes as _NumberCodes, + _ObjectCodes as _ObjectCodes, + _ShortCodes as _ShortCodes, + _SignedIntegerCodes as _SignedIntegerCodes, + _SingleCodes as _SingleCodes, + _StrCodes as _StrCodes, + _StringCodes as _StringCodes, + _TD64Codes as _TD64Codes, + _UByteCodes as _UByteCodes, + _UInt8Codes as _UInt8Codes, + _UInt16Codes as _UInt16Codes, + _UInt32Codes as _UInt32Codes, + _UInt64Codes as _UInt64Codes, + _UIntCCodes as _UIntCCodes, + _UIntCodes as _UIntCodes, + _UIntPCodes as _UIntPCodes, + _ULongCodes as _ULongCodes, + _ULongLongCodes as _ULongLongCodes, + _UnsignedIntegerCodes as _UnsignedIntegerCodes, + _UShortCodes as _UShortCodes, + _VoidCodes as _VoidCodes, +) + +# +from ._dtype_like import ( + _DTypeLike as _DTypeLike, + _DTypeLikeBool as _DTypeLikeBool, + _DTypeLikeBytes as _DTypeLikeBytes, + _DTypeLikeComplex as _DTypeLikeComplex, + _DTypeLikeComplex_co as _DTypeLikeComplex_co, + _DTypeLikeDT64 as _DTypeLikeDT64, + _DTypeLikeFloat as _DTypeLikeFloat, + _DTypeLikeInt as _DTypeLikeInt, + _DTypeLikeObject as _DTypeLikeObject, + _DTypeLikeStr as _DTypeLikeStr, + _DTypeLikeTD64 as _DTypeLikeTD64, + _DTypeLikeUInt as _DTypeLikeUInt, + _DTypeLikeVoid as _DTypeLikeVoid, + _HasDType as _HasDType, + _SupportsDType as _SupportsDType, + _VoidDTypeLike as _VoidDTypeLike, +) + +# +from ._nbit import ( + _NBitByte as _NBitByte, + _NBitDouble as _NBitDouble, + _NBitHalf as _NBitHalf, + _NBitInt as _NBitInt, + _NBitIntC as _NBitIntC, + _NBitIntP as _NBitIntP, + _NBitLong as _NBitLong, + _NBitLongDouble as _NBitLongDouble, + _NBitLongLong as _NBitLongLong, + _NBitShort as _NBitShort, + _NBitSingle as _NBitSingle, +) + +# +from ._nbit_base import ( # type: ignore[deprecated] + NBitBase as NBitBase, # pyright: ignore[reportDeprecated] + _8Bit as _8Bit, + _16Bit as _16Bit, + _32Bit as _32Bit, + _64Bit as _64Bit, + _96Bit as _96Bit, + _128Bit as _128Bit, +) + +# +from ._nested_sequence import _NestedSequence as _NestedSequence + +# +from ._scalars import ( + _BoolLike_co as _BoolLike_co, + _CharLike_co as _CharLike_co, + _ComplexLike_co as _ComplexLike_co, + _FloatLike_co as _FloatLike_co, + _IntLike_co as _IntLike_co, + _NumberLike_co as _NumberLike_co, + _ScalarLike_co as _ScalarLike_co, + _TD64Like_co as _TD64Like_co, + _UIntLike_co as _UIntLike_co, + _VoidLike_co as _VoidLike_co, +) + +# +from ._shape import _AnyShape as _AnyShape, _Shape as _Shape, _ShapeLike as _ShapeLike + +# +from ._ufunc import ( + _GUFunc_Nin2_Nout1 as _GUFunc_Nin2_Nout1, + _UFunc_Nin1_Nout1 as _UFunc_Nin1_Nout1, + _UFunc_Nin1_Nout2 as _UFunc_Nin1_Nout2, + _UFunc_Nin2_Nout1 as _UFunc_Nin2_Nout1, + _UFunc_Nin2_Nout2 as _UFunc_Nin2_Nout2, +) + +# wrapping the public aliases in `TypeAliasType` helps with introspection readability +if sys.version_info >= (3, 12): + from typing import TypeAliasType + + from ._array_like import ArrayLike as _ArrayLikeAlias + from ._dtype_like import DTypeLike as _DTypeLikeAlias + + ArrayLike = TypeAliasType("ArrayLike", _ArrayLikeAlias) + DTypeLike = TypeAliasType("DTypeLike", _DTypeLikeAlias) + +else: + from ._array_like import ArrayLike as ArrayLike + from ._dtype_like import DTypeLike as DTypeLike diff --git a/.venv_haddock/lib/python3.12/site-packages/numpy/_typing/_add_docstring.py b/.venv_haddock/lib/python3.12/site-packages/numpy/_typing/_add_docstring.py new file mode 100644 index 0000000000000000000000000000000000000000..5330a6b3b7159ba528602a624702975b6827feab --- /dev/null +++ b/.venv_haddock/lib/python3.12/site-packages/numpy/_typing/_add_docstring.py @@ -0,0 +1,153 @@ +"""A module for creating docstrings for sphinx ``data`` domains.""" + +import re +import textwrap + +from ._array_like import NDArray + +_docstrings_list = [] + + +def add_newdoc(name: str, value: str, doc: str) -> None: + """Append ``_docstrings_list`` with a docstring for `name`. + + Parameters + ---------- + name : str + The name of the object. + value : str + A string-representation of the object. + doc : str + The docstring of the object. + + """ + _docstrings_list.append((name, value, doc)) + + +def _parse_docstrings() -> str: + """Convert all docstrings in ``_docstrings_list`` into a single + sphinx-legible text block. + + """ + type_list_ret = [] + for name, value, doc in _docstrings_list: + s = textwrap.dedent(doc).replace("\n", "\n ") + + # Replace sections by rubrics + lines = s.split("\n") + new_lines = [] + indent = "" + for line in lines: + m = re.match(r'^(\s+)[-=]+\s*$', line) + if m and new_lines: + prev = textwrap.dedent(new_lines.pop()) + if prev == "Examples": + indent = "" + new_lines.append(f'{m.group(1)}.. rubric:: {prev}') + else: + indent = 4 * " " + new_lines.append(f'{m.group(1)}.. admonition:: {prev}') + new_lines.append("") + else: + new_lines.append(f"{indent}{line}") + + s = "\n".join(new_lines) + s_block = f""".. data:: {name}\n :value: {value}\n {s}""" + type_list_ret.append(s_block) + return "\n".join(type_list_ret) + + +add_newdoc('ArrayLike', 'typing.Union[...]', + """ + A `~typing.Union` representing objects that can be coerced + into an `~numpy.ndarray`. + + Among others this includes the likes of: + + * Scalars. + * (Nested) sequences. + * Objects implementing the `~class.__array__` protocol. + + .. versionadded:: 1.20 + + See Also + -------- + :term:`array_like`: + Any scalar or sequence that can be interpreted as an ndarray. + + Examples + -------- + .. code-block:: python + + >>> import numpy as np + >>> import numpy.typing as npt + + >>> def as_array(a: npt.ArrayLike) -> np.ndarray: + ... return np.array(a) + + """) + +add_newdoc('DTypeLike', 'typing.Union[...]', + """ + A `~typing.Union` representing objects that can be coerced + into a `~numpy.dtype`. + + Among others this includes the likes of: + + * :class:`type` objects. + * Character codes or the names of :class:`type` objects. + * Objects with the ``.dtype`` attribute. + + .. versionadded:: 1.20 + + See Also + -------- + :ref:`Specifying and constructing data types ` + A comprehensive overview of all objects that can be coerced + into data types. + + Examples + -------- + .. code-block:: python + + >>> import numpy as np + >>> import numpy.typing as npt + + >>> def as_dtype(d: npt.DTypeLike) -> np.dtype: + ... return np.dtype(d) + + """) + +add_newdoc('NDArray', repr(NDArray), + """ + A `np.ndarray[tuple[Any, ...], np.dtype[ScalarT]] ` + type alias :term:`generic ` w.r.t. its + `dtype.type `. + + Can be used during runtime for typing arrays with a given dtype + and unspecified shape. + + .. versionadded:: 1.21 + + Examples + -------- + .. code-block:: python + + >>> import numpy as np + >>> import numpy.typing as npt + + >>> print(npt.NDArray) + numpy.ndarray[tuple[typing.Any, ...], numpy.dtype[~_ScalarT]] + + >>> print(npt.NDArray[np.float64]) + numpy.ndarray[tuple[typing.Any, ...], numpy.dtype[numpy.float64]] + + >>> NDArrayInt = npt.NDArray[np.int_] + >>> a: NDArrayInt = np.arange(10) + + >>> def func(a: npt.ArrayLike) -> npt.NDArray[Any]: + ... return np.array(a) + + """) + +_docstrings = _parse_docstrings()