Initial public upload from Projekte/CodingAgent (part 4)

.gitattributes

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 hai-mcp-pr7/.venv/bin/python3.13 filter=lfs diff=lfs merge=lfs -text
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 hai-mcp-pr7/.venv/lib/python3.13/site-packages/cryptography/hazmat/bindings/_rust.abi3.so filter=lfs diff=lfs merge=lfs -text
+hai-mcp-pr7/.venv/lib/python3.13/site-packages/pydantic_core/_pydantic_core.cpython-313-x86_64-linux-gnu.so filter=lfs diff=lfs merge=lfs -text

hai-mcp-pr7/.venv/lib/python3.13/site-packages/mcp-1.28.1.dist-info/INSTALLER

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+uv

hai-mcp-pr7/.venv/lib/python3.13/site-packages/mcp-1.28.1.dist-info/METADATA

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+Metadata-Version: 2.4
+Name: mcp
+Version: 1.28.1
+Summary: Model Context Protocol SDK
+Project-URL: Homepage, https://modelcontextprotocol.io
+Project-URL: Documentation, https://py.sdk.modelcontextprotocol.io/
+Project-URL: Repository, https://github.com/modelcontextprotocol/python-sdk
+Project-URL: Issues, https://github.com/modelcontextprotocol/python-sdk/issues
+Author: Anthropic, PBC.
+Maintainer-email: David Soria Parra <davidsp@anthropic.com>, Justin Spahr-Summers <justin@anthropic.com>
+License: MIT
+License-File: LICENSE
+Keywords: automation,git,llm,mcp
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Programming Language :: Python :: 3
+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
+Requires-Python: >=3.10
+Requires-Dist: anyio>=4.5
+Requires-Dist: httpx-sse>=0.4
+Requires-Dist: httpx<1.0.0,>=0.27.1
+Requires-Dist: jsonschema>=4.20.0
+Requires-Dist: pydantic-settings>=2.5.2
+Requires-Dist: pydantic<3.0.0,>=2.11.0; python_version < '3.14'
+Requires-Dist: pydantic<3.0.0,>=2.12.0; python_version >= '3.14'
+Requires-Dist: pyjwt[crypto]>=2.10.1
+Requires-Dist: python-multipart>=0.0.9
+Requires-Dist: pywin32>=310; sys_platform == 'win32' and python_version < '3.14'
+Requires-Dist: pywin32>=311; sys_platform == 'win32' and python_version >= '3.14'
+Requires-Dist: sse-starlette>=1.6.1
+Requires-Dist: starlette>=0.27; python_version < '3.14'
+Requires-Dist: starlette>=0.48.0; python_version >= '3.14'
+Requires-Dist: typing-extensions>=4.9.0
+Requires-Dist: typing-inspection>=0.4.1
+Requires-Dist: uvicorn>=0.31.1; sys_platform != 'emscripten'
+Provides-Extra: cli
+Requires-Dist: python-dotenv>=1.0.0; extra == 'cli'
+Requires-Dist: typer>=0.16.0; extra == 'cli'
+Provides-Extra: rich
+Requires-Dist: rich>=13.9.4; extra == 'rich'
+Provides-Extra: ws
+Requires-Dist: websockets>=15.0.1; extra == 'ws'
+Description-Content-Type: text/markdown
+
+# MCP Python SDK
+
+<div align="center">
+
+<strong>Python implementation of the Model Context Protocol (MCP)</strong>
+
+[![PyPI][pypi-badge]][pypi-url]
+[![MIT licensed][mit-badge]][mit-url]
+[![Python Version][python-badge]][python-url]
+[![Documentation][docs-badge]][docs-url]
+[![Protocol][protocol-badge]][protocol-url]
+[![Specification][spec-badge]][spec-url]
+
+</div>
+
+> **This documents v1.x, the stable release line of the MCP Python SDK. v2 is in alpha.**
+>
+> v2 pre-releases are published to PyPI as `2.0.0aN`. Installers never select a pre-release unless you opt in (for example `pip install mcp==2.0.0a1`), so v1.x users are unaffected. **If your package depends on `mcp`, add a `<2` upper bound to your version constraint (for example `mcp>=1.27,<2`) before the stable v2 release lands.** See the [v2 documentation](https://github.com/modelcontextprotocol/python-sdk/blob/main/README.v2.md) and the [migration guide](https://github.com/modelcontextprotocol/python-sdk/blob/main/docs/migration.md) for what's changing.
+>
+> v1.x remains recommended for production use. It is in maintenance mode and continues to receive critical bug fixes and security patches.
+
+<!-- omit in toc -->
+## Table of Contents
+
+- [MCP Python SDK](#mcp-python-sdk)
+  - [Overview](#overview)
+  - [Installation](#installation)
+  - [Quickstart](#quickstart)
+  - [What is MCP?](#what-is-mcp)
+  - [Documentation](#documentation)
+  - [Contributing](#contributing)
+  - [License](#license)
+
+[pypi-badge]: https://img.shields.io/pypi/v/mcp.svg
+[pypi-url]: https://pypi.org/project/mcp/
+[mit-badge]: https://img.shields.io/pypi/l/mcp.svg
+[mit-url]: https://github.com/modelcontextprotocol/python-sdk/blob/main/LICENSE
+[python-badge]: https://img.shields.io/pypi/pyversions/mcp.svg
+[python-url]: https://www.python.org/downloads/
+[docs-badge]: https://img.shields.io/badge/docs-python--sdk-blue.svg
+[docs-url]: https://modelcontextprotocol.github.io/python-sdk/
+[protocol-badge]: https://img.shields.io/badge/protocol-modelcontextprotocol.io-blue.svg
+[protocol-url]: https://modelcontextprotocol.io
+[spec-badge]: https://img.shields.io/badge/spec-spec.modelcontextprotocol.io-blue.svg
+[spec-url]: https://modelcontextprotocol.io/specification/latest
+
+## Overview
+
+The Model Context Protocol allows applications to provide context for LLMs in a standardized way, separating the concerns of providing context from the actual LLM interaction. This Python SDK implements the full MCP specification, making it easy to:
+
+- Build MCP clients that can connect to any MCP server
+- Create MCP servers that expose resources, prompts and tools
+- Use standard transports like stdio, SSE, and Streamable HTTP
+- Handle all MCP protocol messages and lifecycle events
+
+## Installation
+
+### Adding MCP to your python project
+
+We recommend using [uv](https://docs.astral.sh/uv/) to manage your Python projects.
+
+If you haven't created a uv-managed project yet, create one:
+
+   ```bash
+   uv init mcp-server-demo
+   cd mcp-server-demo
+   ```
+
+   Then add MCP to your project dependencies:
+
+   ```bash
+   uv add "mcp[cli]"
+   ```
+
+Alternatively, for projects using pip for dependencies:
+
+```bash
+pip install "mcp[cli]"
+```
+
+### Running the standalone MCP development tools
+
+To run the mcp command with uv:
+
+```bash
+uv run mcp
+```
+
+## Quickstart
+
+Let's create a simple MCP server that exposes a calculator tool and some data:
+
+<!-- snippet-source examples/snippets/servers/fastmcp_quickstart.py -->
+```python
+"""
+FastMCP quickstart example.
+
+Run from the repository root:
+    uv run examples/snippets/servers/fastmcp_quickstart.py
+"""
+
+from mcp.server.fastmcp import FastMCP
+
+# Create an MCP server
+mcp = FastMCP("Demo", json_response=True)
+
+
+# Add an addition tool
+@mcp.tool()
+def add(a: int, b: int) -> int:
+    """Add two numbers"""
+    return a + b
+
+
+# Add a dynamic greeting resource
+@mcp.resource("greeting://{name}")
+def get_greeting(name: str) -> str:
+    """Get a personalized greeting"""
+    return f"Hello, {name}!"
+
+
+# Add a prompt
+@mcp.prompt()
+def greet_user(name: str, style: str = "friendly") -> str:
+    """Generate a greeting prompt"""
+    styles = {
+        "friendly": "Please write a warm, friendly greeting",
+        "formal": "Please write a formal, professional greeting",
+        "casual": "Please write a casual, relaxed greeting",
+    }
+
+    return f"{styles.get(style, styles['friendly'])} for someone named {name}."
+
+
+# Run with streamable HTTP transport
+if __name__ == "__main__":
+    mcp.run(transport="streamable-http")
+```
+
+_Full example: [examples/snippets/servers/fastmcp_quickstart.py](https://github.com/modelcontextprotocol/python-sdk/blob/v1.x/examples/snippets/servers/fastmcp_quickstart.py)_
+<!-- /snippet-source -->
+
+You can install this server in [Claude Code](https://docs.claude.com/en/docs/claude-code/mcp) and interact with it right away. First, run the server:
+
+```bash
+uv run --with mcp examples/snippets/servers/fastmcp_quickstart.py
+```
+
+Then add it to Claude Code:
+
+```bash
+claude mcp add --transport http my-server http://localhost:8000/mcp
+```
+
+Alternatively, you can test it with the MCP Inspector. Start the server as above, then in a separate terminal:
+
+```bash
+npx -y @modelcontextprotocol/inspector
+```
+
+In the inspector UI, connect to `http://localhost:8000/mcp`.
+
+## What is MCP?
+
+The [Model Context Protocol (MCP)](https://modelcontextprotocol.io) lets you build servers that expose data and functionality to LLM applications in a secure, standardized way. Think of it like a web API, but specifically designed for LLM interactions. MCP servers can:
+
+- Expose data through **Resources** (think of these sort of like GET endpoints; they are used to load information into the LLM's context)
+- Provide functionality through **Tools** (sort of like POST endpoints; they are used to execute code or otherwise produce a side effect)
+- Define interaction patterns through **Prompts** (reusable templates for LLM interactions)
+- And more!
+
+## Documentation
+
+- [Building Servers](docs/server.md) -- tools, resources, prompts, logging, completions, sampling, elicitation, transports, ASGI mounting
+- [Writing Clients](docs/client.md) -- connecting to servers, using tools/resources/prompts, display utilities
+- [Authorization](docs/authorization.md) -- OAuth 2.1, token verification, client authentication
+- [Low-Level Server](docs/low-level-server.md) -- direct handler registration for advanced use cases
+- [Protocol Features](docs/protocol.md) -- MCP primitives, server capabilities
+- [Testing](docs/testing.md) -- in-memory transport testing with pytest
+- [API Reference](https://modelcontextprotocol.github.io/python-sdk/api/)
+- [Experimental Features (Tasks)](https://modelcontextprotocol.github.io/python-sdk/experimental/tasks/)
+- [Model Context Protocol documentation](https://modelcontextprotocol.io)
+- [Model Context Protocol specification](https://modelcontextprotocol.io/specification/latest)
+- [Officially supported servers](https://github.com/modelcontextprotocol/servers)
+
+## Contributing
+
+We are passionate about supporting contributors of all levels of experience and would love to see you get involved in the project. See the [contributing guide](CONTRIBUTING.md) to get started.
+
+## License
+
+This project is licensed under the MIT License - see the LICENSE file for details.

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hai-mcp-pr7/.venv/lib/python3.13/site-packages/mcp-1.28.1.dist-info/WHEEL

@@ -0,0 +1,4 @@
+Wheel-Version: 1.0
+Generator: hatchling 1.30.1
+Root-Is-Purelib: true
+Tag: py3-none-any

hai-mcp-pr7/.venv/lib/python3.13/site-packages/mcp-1.28.1.dist-info/entry_points.txt

@@ -0,0 +1,2 @@
+[console_scripts]
+mcp = mcp.cli:app [cli]

hai-mcp-pr7/.venv/lib/python3.13/site-packages/mcp-1.28.1.dist-info/licenses/LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2024 Anthropic, PBC
+
+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.

hai-mcp-pr7/.venv/lib/python3.13/site-packages/mcp/shared/tool_name_validation.py

@@ -0,0 +1,129 @@
+"""Tool name validation utilities according to SEP-986.
+
+Tool names SHOULD be between 1 and 128 characters in length (inclusive).
+Tool names are case-sensitive.
+Allowed characters: uppercase and lowercase ASCII letters (A-Z, a-z),
+digits (0-9), underscore (_), dash (-), and dot (.).
+Tool names SHOULD NOT contain spaces, commas, or other special characters.
+
+See: https://modelcontextprotocol.io/specification/2025-11-25/server/tools#tool-names
+"""
+
+from __future__ import annotations
+
+import logging
+import re
+from dataclasses import dataclass, field
+
+logger = logging.getLogger(__name__)
+
+# Regular expression for valid tool names according to SEP-986 specification
+TOOL_NAME_REGEX = re.compile(r"^[A-Za-z0-9._-]{1,128}$")
+
+# SEP reference URL for warning messages
+SEP_986_URL = "https://modelcontextprotocol.io/specification/2025-11-25/server/tools#tool-names"
+
+
+@dataclass
+class ToolNameValidationResult:
+    """Result of tool name validation.
+
+    Attributes:
+        is_valid: Whether the tool name conforms to SEP-986 requirements.
+        warnings: List of warning messages for non-conforming aspects.
+    """
+
+    is_valid: bool
+    warnings: list[str] = field(default_factory=lambda: [])
+
+
+def validate_tool_name(name: str) -> ToolNameValidationResult:
+    """Validate a tool name according to the SEP-986 specification.
+
+    Args:
+        name: The tool name to validate.
+
+    Returns:
+        ToolNameValidationResult containing validation status and any warnings.
+    """
+    warnings: list[str] = []
+
+    # Check for empty name
+    if not name:
+        return ToolNameValidationResult(
+            is_valid=False,
+            warnings=["Tool name cannot be empty"],
+        )
+
+    # Check length
+    if len(name) > 128:
+        return ToolNameValidationResult(
+            is_valid=False,
+            warnings=[f"Tool name exceeds maximum length of 128 characters (current: {len(name)})"],
+        )
+
+    # Check for problematic patterns (warnings, not validation failures)
+    if " " in name:
+        warnings.append("Tool name contains spaces, which may cause parsing issues")
+
+    if "," in name:
+        warnings.append("Tool name contains commas, which may cause parsing issues")
+
+    # Check for potentially confusing leading/trailing characters
+    if name.startswith("-") or name.endswith("-"):
+        warnings.append("Tool name starts or ends with a dash, which may cause parsing issues in some contexts")
+
+    if name.startswith(".") or name.endswith("."):
+        warnings.append("Tool name starts or ends with a dot, which may cause parsing issues in some contexts")
+
+    # Check for invalid characters
+    if not TOOL_NAME_REGEX.match(name):
+        # Find all invalid characters (unique, preserving order)
+        invalid_chars: list[str] = []
+        seen: set[str] = set()
+        for char in name:
+            if not re.match(r"[A-Za-z0-9._-]", char) and char not in seen:
+                invalid_chars.append(char)
+                seen.add(char)
+
+        warnings.append(f"Tool name contains invalid characters: {', '.join(repr(c) for c in invalid_chars)}")
+        warnings.append("Allowed characters are: A-Z, a-z, 0-9, underscore (_), dash (-), and dot (.)")
+
+        return ToolNameValidationResult(is_valid=False, warnings=warnings)
+
+    return ToolNameValidationResult(is_valid=True, warnings=warnings)
+
+
+def issue_tool_name_warning(name: str, warnings: list[str]) -> None:
+    """Log warnings for non-conforming tool names.
+
+    Args:
+        name: The tool name that triggered the warnings.
+        warnings: List of warning messages to log.
+    """
+    if not warnings:
+        return
+
+    logger.warning(f'Tool name validation warning for "{name}":')
+    for warning in warnings:
+        logger.warning(f"  - {warning}")
+    logger.warning("Tool registration will proceed, but this may cause compatibility issues.")
+    logger.warning("Consider updating the tool name to conform to the MCP tool naming standard.")
+    logger.warning(f"See SEP-986 ({SEP_986_URL}) for more details.")
+
+
+def validate_and_warn_tool_name(name: str) -> bool:
+    """Validate a tool name and issue warnings for non-conforming names.
+
+    This is the primary entry point for tool name validation. It validates
+    the name and logs any warnings via the logging module.
+
+    Args:
+        name: The tool name to validate.
+
+    Returns:
+        True if the name is valid, False otherwise.
+    """
+    result = validate_tool_name(name)
+    issue_tool_name_warning(name, result.warnings)
+    return result.is_valid

hai-mcp-pr7/.venv/lib/python3.13/site-packages/mcp/shared/version.py

@@ -0,0 +1,3 @@
+from mcp.types import LATEST_PROTOCOL_VERSION
+
+SUPPORTED_PROTOCOL_VERSIONS: list[str] = ["2024-11-05", "2025-03-26", "2025-06-18", LATEST_PROTOCOL_VERSION]

hai-mcp-pr7/.venv/lib/python3.13/site-packages/mcp/types.py

@@ -0,0 +1,1999 @@
+from collections.abc import Callable
+from datetime import datetime
+from typing import Annotated, Any, Final, Generic, Literal, TypeAlias, TypeVar
+
+from pydantic import BaseModel, ConfigDict, Field, FileUrl, RootModel
+from pydantic.networks import AnyUrl, UrlConstraints
+from typing_extensions import deprecated
+
+"""
+Model Context Protocol bindings for Python
+
+These bindings were generated from https://github.com/modelcontextprotocol/specification,
+using Claude, with a prompt something like the following:
+
+Generate idiomatic Python bindings for this schema for MCP, or the "Model Context
+Protocol." The schema is defined in TypeScript, but there's also a JSON Schema version
+for reference.
+
+* For the bindings, let's use Pydantic V2 models.
+* Each model should allow extra fields everywhere, by specifying `model_config =
+  ConfigDict(extra='allow')`. Do this in every case, instead of a custom base class.
+* Union types should be represented with a Pydantic `RootModel`.
+* Define additional model classes instead of using dictionaries. Do this even if they're
+  not separate types in the schema.
+"""
+
+LATEST_PROTOCOL_VERSION = "2025-11-25"
+
+"""
+The default negotiated version of the Model Context Protocol when no version is specified.
+We need this to satisfy the MCP specification, which requires the server to assume a
+specific version if none is provided by the client. See section "Protocol Version Header" at
+https://modelcontextprotocol.io/specification
+"""
+DEFAULT_NEGOTIATED_VERSION = "2025-03-26"
+
+ProgressToken = str | int
+Cursor = str
+Role = Literal["user", "assistant"]
+RequestId = Annotated[int, Field(strict=True)] | str
+AnyFunction: TypeAlias = Callable[..., Any]
+
+TaskExecutionMode = Literal["forbidden", "optional", "required"]
+TASK_FORBIDDEN: Final[Literal["forbidden"]] = "forbidden"
+TASK_OPTIONAL: Final[Literal["optional"]] = "optional"
+TASK_REQUIRED: Final[Literal["required"]] = "required"
+
+
+class TaskMetadata(BaseModel):
+    """
+    Metadata for augmenting a request with task execution.
+    Include this in the `task` field of the request parameters.
+    """
+
+    model_config = ConfigDict(extra="allow")
+
+    ttl: Annotated[int, Field(strict=True)] | None = None
+    """Requested duration in milliseconds to retain task from creation."""
+
+
+class RequestParams(BaseModel):
+    class Meta(BaseModel):
+        progressToken: ProgressToken | None = None
+        """
+        If specified, the caller requests out-of-band progress notifications for
+        this request (as represented by notifications/progress). The value of this
+        parameter is an opaque token that will be attached to any subsequent
+        notifications. The receiver is not obligated to provide these notifications.
+        """
+
+        model_config = ConfigDict(extra="allow")
+
+    task: TaskMetadata | None = None
+    """
+    If specified, the caller is requesting task-augmented execution for this request.
+    The request will return a CreateTaskResult immediately, and the actual result can be
+    retrieved later via tasks/result.
+
+    Task augmentation is subject to capability negotiation - receivers MUST declare support
+    for task augmentation of specific request types in their capabilities.
+    """
+
+    meta: Meta | None = Field(alias="_meta", default=None)
+
+
+class PaginatedRequestParams(RequestParams):
+    cursor: Cursor | None = None
+    """
+    An opaque token representing the current pagination position.
+    If provided, the server should return results starting after this cursor.
+    """
+
+
+class NotificationParams(BaseModel):
+    class Meta(BaseModel):
+        model_config = ConfigDict(extra="allow")
+
+    meta: Meta | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+
+
+RequestParamsT = TypeVar("RequestParamsT", bound=RequestParams | dict[str, Any] | None)
+NotificationParamsT = TypeVar("NotificationParamsT", bound=NotificationParams | dict[str, Any] | None)
+MethodT = TypeVar("MethodT", bound=str)
+
+
+class Request(BaseModel, Generic[RequestParamsT, MethodT]):
+    """Base class for JSON-RPC requests."""
+
+    method: MethodT
+    params: RequestParamsT
+    model_config = ConfigDict(extra="allow")
+
+
+class PaginatedRequest(Request[PaginatedRequestParams | None, MethodT], Generic[MethodT]):
+    """Base class for paginated requests,
+    matching the schema's PaginatedRequest interface."""
+
+    params: PaginatedRequestParams | None = None
+
+
+class Notification(BaseModel, Generic[NotificationParamsT, MethodT]):
+    """Base class for JSON-RPC notifications."""
+
+    method: MethodT
+    params: NotificationParamsT
+    model_config = ConfigDict(extra="allow")
+
+
+class Result(BaseModel):
+    """Base class for JSON-RPC results."""
+
+    meta: dict[str, Any] | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class PaginatedResult(Result):
+    nextCursor: Cursor | None = None
+    """
+    An opaque token representing the pagination position after the last returned result.
+    If present, there may be more results available.
+    """
+
+
+class JSONRPCRequest(Request[dict[str, Any] | None, str]):
+    """A request that expects a response."""
+
+    jsonrpc: Literal["2.0"]
+    id: RequestId
+    method: str
+    params: dict[str, Any] | None = None
+
+
+class JSONRPCNotification(Notification[dict[str, Any] | None, str]):
+    """A notification which does not expect a response."""
+
+    jsonrpc: Literal["2.0"]
+    params: dict[str, Any] | None = None
+
+
+class JSONRPCResponse(BaseModel):
+    """A successful (non-error) response to a request."""
+
+    jsonrpc: Literal["2.0"]
+    id: RequestId
+    result: dict[str, Any]
+    model_config = ConfigDict(extra="allow")
+
+
+# MCP-specific error codes in the range [-32000, -32099]
+URL_ELICITATION_REQUIRED = -32042
+"""Error code indicating that a URL mode elicitation is required before the request can be processed."""
+
+# SDK error codes
+CONNECTION_CLOSED = -32000
+# REQUEST_TIMEOUT = -32001  # the typescript sdk uses this
+
+# Standard JSON-RPC error codes
+PARSE_ERROR = -32700
+INVALID_REQUEST = -32600
+METHOD_NOT_FOUND = -32601
+INVALID_PARAMS = -32602
+INTERNAL_ERROR = -32603
+
+
+class ErrorData(BaseModel):
+    """Error information for JSON-RPC error responses."""
+
+    code: int
+    """The error type that occurred."""
+
+    message: str
+    """
+    A short description of the error. The message SHOULD be limited to a concise single
+    sentence.
+    """
+
+    data: Any | None = None
+    """
+    Additional information about the error. The value of this member is defined by the
+    sender (e.g. detailed error information, nested errors etc.).
+    """
+
+    model_config = ConfigDict(extra="allow")
+
+
+class JSONRPCError(BaseModel):
+    """A response to a request that indicates an error occurred."""
+
+    jsonrpc: Literal["2.0"]
+    id: str | int
+    error: ErrorData
+    model_config = ConfigDict(extra="allow")
+
+
+class JSONRPCMessage(RootModel[JSONRPCRequest | JSONRPCNotification | JSONRPCResponse | JSONRPCError]):
+    pass
+
+
+class EmptyResult(Result):
+    """A response that indicates success but carries no data."""
+
+
+class BaseMetadata(BaseModel):
+    """Base class for entities with name and optional title fields."""
+
+    name: str
+    """The programmatic name of the entity."""
+
+    title: str | None = None
+    """
+    Intended for UI and end-user contexts — optimized to be human-readable and easily understood,
+    even by those unfamiliar with domain-specific terminology.
+
+    If not provided, the name should be used for display (except for Tool,
+    where `annotations.title` should be given precedence over using `name`,
+    if present).
+    """
+
+
+class Icon(BaseModel):
+    """An icon for display in user interfaces."""
+
+    src: str
+    """URL or data URI for the icon."""
+
+    mimeType: str | None = None
+    """Optional MIME type for the icon."""
+
+    sizes: list[str] | None = None
+    """Optional list of strings specifying icon dimensions (e.g., ["48x48", "96x96"])."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class Implementation(BaseMetadata):
+    """Describes the name and version of an MCP implementation."""
+
+    version: str
+
+    websiteUrl: str | None = None
+    """An optional URL of the website for this implementation."""
+
+    icons: list[Icon] | None = None
+    """An optional list of icons for this implementation."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class RootsCapability(BaseModel):
+    """Capability for root operations."""
+
+    listChanged: bool | None = None
+    """Whether the client supports notifications for changes to the roots list."""
+    model_config = ConfigDict(extra="allow")
+
+
+class SamplingContextCapability(BaseModel):
+    """
+    Capability for context inclusion during sampling.
+
+    Indicates support for non-'none' values in the includeContext parameter.
+    SOFT-DEPRECATED: New implementations should use tools parameter instead.
+    """
+
+    model_config = ConfigDict(extra="allow")
+
+
+class SamplingToolsCapability(BaseModel):
+    """
+    Capability indicating support for tool calling during sampling.
+
+    When present in ClientCapabilities.sampling, indicates that the client
+    supports the tools and toolChoice parameters in sampling requests.
+    """
+
+    model_config = ConfigDict(extra="allow")
+
+
+class FormElicitationCapability(BaseModel):
+    """Capability for form mode elicitation."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class UrlElicitationCapability(BaseModel):
+    """Capability for URL mode elicitation."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class ElicitationCapability(BaseModel):
+    """Capability for elicitation operations.
+
+    Clients must support at least one mode (form or url).
+    """
+
+    form: FormElicitationCapability | None = None
+    """Present if the client supports form mode elicitation."""
+
+    url: UrlElicitationCapability | None = None
+    """Present if the client supports URL mode elicitation."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class SamplingCapability(BaseModel):
+    """
+    Sampling capability structure, allowing fine-grained capability advertisement.
+    """
+
+    context: SamplingContextCapability | None = None
+    """
+    Present if the client supports non-'none' values for includeContext parameter.
+    SOFT-DEPRECATED: New implementations should use tools parameter instead.
+    """
+    tools: SamplingToolsCapability | None = None
+    """
+    Present if the client supports tools and toolChoice parameters in sampling requests.
+    Presence indicates full tool calling support during sampling.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class TasksListCapability(BaseModel):
+    """Capability for tasks listing operations."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class TasksCancelCapability(BaseModel):
+    """Capability for tasks cancel operations."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class TasksCreateMessageCapability(BaseModel):
+    """Capability for tasks create messages."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class TasksSamplingCapability(BaseModel):
+    """Capability for tasks sampling operations."""
+
+    model_config = ConfigDict(extra="allow")
+
+    createMessage: TasksCreateMessageCapability | None = None
+
+
+class TasksCreateElicitationCapability(BaseModel):
+    """Capability for tasks create elicitation operations."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class TasksElicitationCapability(BaseModel):
+    """Capability for tasks elicitation operations."""
+
+    model_config = ConfigDict(extra="allow")
+
+    create: TasksCreateElicitationCapability | None = None
+
+
+class ClientTasksRequestsCapability(BaseModel):
+    """Capability for tasks requests operations."""
+
+    model_config = ConfigDict(extra="allow")
+
+    sampling: TasksSamplingCapability | None = None
+
+    elicitation: TasksElicitationCapability | None = None
+
+
+class ClientTasksCapability(BaseModel):
+    """Capability for client tasks operations."""
+
+    model_config = ConfigDict(extra="allow")
+
+    list: TasksListCapability | None = None
+    """Whether this client supports tasks/list."""
+
+    cancel: TasksCancelCapability | None = None
+    """Whether this client supports tasks/cancel."""
+
+    requests: ClientTasksRequestsCapability | None = None
+    """Specifies which request types can be augmented with tasks."""
+
+
+class ClientCapabilities(BaseModel):
+    """Capabilities a client may support."""
+
+    experimental: dict[str, dict[str, Any]] | None = None
+    """Experimental, non-standard capabilities that the client supports."""
+    sampling: SamplingCapability | None = None
+    """
+    Present if the client supports sampling from an LLM.
+    Can contain fine-grained capabilities like context and tools support.
+    """
+    elicitation: ElicitationCapability | None = None
+    """Present if the client supports elicitation from the user."""
+    roots: RootsCapability | None = None
+    """Present if the client supports listing roots."""
+    tasks: ClientTasksCapability | None = None
+    """Present if the client supports task-augmented requests."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class PromptsCapability(BaseModel):
+    """Capability for prompts operations."""
+
+    listChanged: bool | None = None
+    """Whether this server supports notifications for changes to the prompt list."""
+    model_config = ConfigDict(extra="allow")
+
+
+class ResourcesCapability(BaseModel):
+    """Capability for resources operations."""
+
+    subscribe: bool | None = None
+    """Whether this server supports subscribing to resource updates."""
+    listChanged: bool | None = None
+    """Whether this server supports notifications for changes to the resource list."""
+    model_config = ConfigDict(extra="allow")
+
+
+class ToolsCapability(BaseModel):
+    """Capability for tools operations."""
+
+    listChanged: bool | None = None
+    """Whether this server supports notifications for changes to the tool list."""
+    model_config = ConfigDict(extra="allow")
+
+
+class LoggingCapability(BaseModel):
+    """Capability for logging operations."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class CompletionsCapability(BaseModel):
+    """Capability for completions operations."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class TasksCallCapability(BaseModel):
+    """Capability for tasks call operations."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class TasksToolsCapability(BaseModel):
+    """Capability for tasks tools operations."""
+
+    model_config = ConfigDict(extra="allow")
+    call: TasksCallCapability | None = None
+
+
+class ServerTasksRequestsCapability(BaseModel):
+    """Capability for tasks requests operations."""
+
+    model_config = ConfigDict(extra="allow")
+
+    tools: TasksToolsCapability | None = None
+
+
+class ServerTasksCapability(BaseModel):
+    """Capability for server tasks operations."""
+
+    model_config = ConfigDict(extra="allow")
+
+    list: TasksListCapability | None = None
+    cancel: TasksCancelCapability | None = None
+    requests: ServerTasksRequestsCapability | None = None
+
+
+class ServerCapabilities(BaseModel):
+    """Capabilities that a server may support."""
+
+    experimental: dict[str, dict[str, Any]] | None = None
+    """Experimental, non-standard capabilities that the server supports."""
+    logging: LoggingCapability | None = None
+    """Present if the server supports sending log messages to the client."""
+    prompts: PromptsCapability | None = None
+    """Present if the server offers any prompt templates."""
+    resources: ResourcesCapability | None = None
+    """Present if the server offers any resources to read."""
+    tools: ToolsCapability | None = None
+    """Present if the server offers any tools to call."""
+    completions: CompletionsCapability | None = None
+    """Present if the server offers autocompletion suggestions for prompts and resources."""
+    tasks: ServerTasksCapability | None = None
+    """Present if the server supports task-augmented requests."""
+    model_config = ConfigDict(extra="allow")
+
+
+TaskStatus = Literal["working", "input_required", "completed", "failed", "cancelled"]
+
+# Task status constants
+TASK_STATUS_WORKING: Final[Literal["working"]] = "working"
+TASK_STATUS_INPUT_REQUIRED: Final[Literal["input_required"]] = "input_required"
+TASK_STATUS_COMPLETED: Final[Literal["completed"]] = "completed"
+TASK_STATUS_FAILED: Final[Literal["failed"]] = "failed"
+TASK_STATUS_CANCELLED: Final[Literal["cancelled"]] = "cancelled"
+
+
+class RelatedTaskMetadata(BaseModel):
+    """
+    Metadata for associating messages with a task.
+
+    Include this in the `_meta` field under the key `io.modelcontextprotocol/related-task`.
+    """
+
+    model_config = ConfigDict(extra="allow")
+    taskId: str
+    """The task identifier this message is associated with."""
+
+
+class Task(BaseModel):
+    """Data associated with a task."""
+
+    model_config = ConfigDict(extra="allow")
+
+    taskId: str
+    """The task identifier."""
+
+    status: TaskStatus
+    """Current task state."""
+
+    statusMessage: str | None = None
+    """  
+    Optional human-readable message describing the current task state.
+    This can provide context for any status, including:
+    - Reasons for "cancelled" status
+    - Summaries for "completed" status
+    - Diagnostic information for "failed" status (e.g., error details, what went wrong)
+    """
+
+    createdAt: datetime  # Pydantic will enforce ISO 8601 and re-serialize as a string later
+    """ISO 8601 timestamp when the task was created."""
+
+    lastUpdatedAt: datetime
+    """ISO 8601 timestamp when the task was last updated."""
+
+    ttl: Annotated[int, Field(strict=True)] | None
+    """Actual retention duration from creation in milliseconds, null for unlimited."""
+
+    pollInterval: Annotated[int, Field(strict=True)] | None = None
+    """Suggested polling interval in milliseconds."""
+
+
+class CreateTaskResult(Result):
+    """A response to a task-augmented request."""
+
+    task: Task
+
+
+class GetTaskRequestParams(RequestParams):
+    model_config = ConfigDict(extra="allow")
+    taskId: str
+    """The task identifier to query."""
+
+
+class GetTaskRequest(Request[GetTaskRequestParams, Literal["tasks/get"]]):
+    """A request to retrieve the state of a task."""
+
+    method: Literal["tasks/get"] = "tasks/get"
+
+    params: GetTaskRequestParams
+
+
+class GetTaskResult(Result, Task):
+    """The response to a tasks/get request."""
+
+
+class GetTaskPayloadRequestParams(RequestParams):
+    model_config = ConfigDict(extra="allow")
+
+    taskId: str
+    """The task identifier to retrieve results for."""
+
+
+class GetTaskPayloadRequest(Request[GetTaskPayloadRequestParams, Literal["tasks/result"]]):
+    """A request to retrieve the result of a completed task."""
+
+    method: Literal["tasks/result"] = "tasks/result"
+    params: GetTaskPayloadRequestParams
+
+
+class GetTaskPayloadResult(Result):
+    """
+    The response to a tasks/result request.
+    The structure matches the result type of the original request.
+    For example, a tools/call task would return the CallToolResult structure.
+    """
+
+
+class CancelTaskRequestParams(RequestParams):
+    model_config = ConfigDict(extra="allow")
+
+    taskId: str
+    """The task identifier to cancel."""
+
+
+class CancelTaskRequest(Request[CancelTaskRequestParams, Literal["tasks/cancel"]]):
+    """A request to cancel a task."""
+
+    method: Literal["tasks/cancel"] = "tasks/cancel"
+    params: CancelTaskRequestParams
+
+
+class CancelTaskResult(Result, Task):
+    """The response to a tasks/cancel request."""
+
+
+class ListTasksRequest(PaginatedRequest[Literal["tasks/list"]]):
+    """A request to retrieve a list of tasks."""
+
+    method: Literal["tasks/list"] = "tasks/list"
+
+
+class ListTasksResult(PaginatedResult):
+    """The response to a tasks/list request."""
+
+    tasks: list[Task]
+
+
+class TaskStatusNotificationParams(NotificationParams, Task):
+    """Parameters for a `notifications/tasks/status` notification."""
+
+
+class TaskStatusNotification(Notification[TaskStatusNotificationParams, Literal["notifications/tasks/status"]]):
+    """
+    An optional notification from the receiver to the requestor, informing them that a task's status has changed.
+    Receivers are not required to send these notifications
+    """
+
+    method: Literal["notifications/tasks/status"] = "notifications/tasks/status"
+    params: TaskStatusNotificationParams
+
+
+class InitializeRequestParams(RequestParams):
+    """Parameters for the initialize request."""
+
+    protocolVersion: str | int
+    """The latest version of the Model Context Protocol that the client supports."""
+    capabilities: ClientCapabilities
+    clientInfo: Implementation
+    model_config = ConfigDict(extra="allow")
+
+
+class InitializeRequest(Request[InitializeRequestParams, Literal["initialize"]]):
+    """
+    This request is sent from the client to the server when it first connects, asking it
+    to begin initialization.
+    """
+
+    method: Literal["initialize"] = "initialize"
+    params: InitializeRequestParams
+
+
+class InitializeResult(Result):
+    """After receiving an initialize request from the client, the server sends this."""
+
+    protocolVersion: str | int
+    """The version of the Model Context Protocol that the server wants to use."""
+    capabilities: ServerCapabilities
+    serverInfo: Implementation
+    instructions: str | None = None
+    """Instructions describing how to use the server and its features."""
+
+
+class InitializedNotification(Notification[NotificationParams | None, Literal["notifications/initialized"]]):
+    """
+    This notification is sent from the client to the server after initialization has
+    finished.
+    """
+
+    method: Literal["notifications/initialized"] = "notifications/initialized"
+    params: NotificationParams | None = None
+
+
+class PingRequest(Request[RequestParams | None, Literal["ping"]]):
+    """
+    A ping, issued by either the server or the client, to check that the other party is
+    still alive.
+    """
+
+    method: Literal["ping"] = "ping"
+    params: RequestParams | None = None
+
+
+class ProgressNotificationParams(NotificationParams):
+    """Parameters for progress notifications."""
+
+    progressToken: ProgressToken
+    """
+    The progress token which was given in the initial request, used to associate this
+    notification with the request that is proceeding.
+    """
+    progress: float
+    """
+    The progress thus far. This should increase every time progress is made, even if the
+    total is unknown.
+    """
+    total: float | None = None
+    """Total number of items to process (or total progress required), if known."""
+    message: str | None = None
+    """
+    Message related to progress. This should provide relevant human readable
+    progress information.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class ProgressNotification(Notification[ProgressNotificationParams, Literal["notifications/progress"]]):
+    """
+    An out-of-band notification used to inform the receiver of a progress update for a
+    long-running request.
+    """
+
+    method: Literal["notifications/progress"] = "notifications/progress"
+    params: ProgressNotificationParams
+
+
+class ListResourcesRequest(PaginatedRequest[Literal["resources/list"]]):
+    """Sent from the client to request a list of resources the server has."""
+
+    method: Literal["resources/list"] = "resources/list"
+
+
+class Annotations(BaseModel):
+    audience: list[Role] | None = None
+    priority: Annotated[float, Field(ge=0.0, le=1.0)] | None = None
+    model_config = ConfigDict(extra="allow")
+
+
+class Resource(BaseMetadata):
+    """A known resource that the server is capable of reading."""
+
+    uri: Annotated[AnyUrl, UrlConstraints(host_required=False)]
+    """The URI of this resource."""
+    description: str | None = None
+    """A description of what this resource represents."""
+    mimeType: str | None = None
+    """The MIME type of this resource, if known."""
+    size: int | None = None
+    """
+    The size of the raw resource content, in bytes (i.e., before base64 encoding
+    or any tokenization), if known.
+
+    This can be used by Hosts to display file sizes and estimate context window usage.
+    """
+    icons: list[Icon] | None = None
+    """An optional list of icons for this resource."""
+    annotations: Annotations | None = None
+    meta: dict[str, Any] | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class ResourceTemplate(BaseMetadata):
+    """A template description for resources available on the server."""
+
+    uriTemplate: str
+    """
+    A URI template (according to RFC 6570) that can be used to construct resource
+    URIs.
+    """
+    description: str | None = None
+    """A human-readable description of what this template is for."""
+    mimeType: str | None = None
+    """
+    The MIME type for all resources that match this template. This should only be
+    included if all resources matching this template have the same type.
+    """
+    icons: list[Icon] | None = None
+    """An optional list of icons for this resource template."""
+    annotations: Annotations | None = None
+    meta: dict[str, Any] | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class ListResourcesResult(PaginatedResult):
+    """The server's response to a resources/list request from the client."""
+
+    resources: list[Resource]
+
+
+class ListResourceTemplatesRequest(PaginatedRequest[Literal["resources/templates/list"]]):
+    """Sent from the client to request a list of resource templates the server has."""
+
+    method: Literal["resources/templates/list"] = "resources/templates/list"
+
+
+class ListResourceTemplatesResult(PaginatedResult):
+    """The server's response to a resources/templates/list request from the client."""
+
+    resourceTemplates: list[ResourceTemplate]
+
+
+class ReadResourceRequestParams(RequestParams):
+    """Parameters for reading a resource."""
+
+    uri: Annotated[AnyUrl, UrlConstraints(host_required=False)]
+    """
+    The URI of the resource to read. The URI can use any protocol; it is up to the
+    server how to interpret it.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class ReadResourceRequest(Request[ReadResourceRequestParams, Literal["resources/read"]]):
+    """Sent from the client to the server, to read a specific resource URI."""
+
+    method: Literal["resources/read"] = "resources/read"
+    params: ReadResourceRequestParams
+
+
+class ResourceContents(BaseModel):
+    """The contents of a specific resource or sub-resource."""
+
+    uri: Annotated[AnyUrl, UrlConstraints(host_required=False)]
+    """The URI of this resource."""
+    mimeType: str | None = None
+    """The MIME type of this resource, if known."""
+    meta: dict[str, Any] | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class TextResourceContents(ResourceContents):
+    """Text contents of a resource."""
+
+    text: str
+    """
+    The text of the item. This must only be set if the item can actually be represented
+    as text (not binary data).
+    """
+
+
+class BlobResourceContents(ResourceContents):
+    """Binary contents of a resource."""
+
+    blob: str
+    """A base64-encoded string representing the binary data of the item."""
+
+
+class ReadResourceResult(Result):
+    """The server's response to a resources/read request from the client."""
+
+    contents: list[TextResourceContents | BlobResourceContents]
+
+
+class ResourceListChangedNotification(
+    Notification[NotificationParams | None, Literal["notifications/resources/list_changed"]]
+):
+    """
+    An optional notification from the server to the client, informing it that the list
+    of resources it can read from has changed.
+    """
+
+    method: Literal["notifications/resources/list_changed"] = "notifications/resources/list_changed"
+    params: NotificationParams | None = None
+
+
+class SubscribeRequestParams(RequestParams):
+    """Parameters for subscribing to a resource."""
+
+    uri: Annotated[AnyUrl, UrlConstraints(host_required=False)]
+    """
+    The URI of the resource to subscribe to. The URI can use any protocol; it is up to
+    the server how to interpret it.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class SubscribeRequest(Request[SubscribeRequestParams, Literal["resources/subscribe"]]):
+    """
+    Sent from the client to request resources/updated notifications from the server
+    whenever a particular resource changes.
+    """
+
+    method: Literal["resources/subscribe"] = "resources/subscribe"
+    params: SubscribeRequestParams
+
+
+class UnsubscribeRequestParams(RequestParams):
+    """Parameters for unsubscribing from a resource."""
+
+    uri: Annotated[AnyUrl, UrlConstraints(host_required=False)]
+    """The URI of the resource to unsubscribe from."""
+    model_config = ConfigDict(extra="allow")
+
+
+class UnsubscribeRequest(Request[UnsubscribeRequestParams, Literal["resources/unsubscribe"]]):
+    """
+    Sent from the client to request cancellation of resources/updated notifications from
+    the server.
+    """
+
+    method: Literal["resources/unsubscribe"] = "resources/unsubscribe"
+    params: UnsubscribeRequestParams
+
+
+class ResourceUpdatedNotificationParams(NotificationParams):
+    """Parameters for resource update notifications."""
+
+    uri: Annotated[AnyUrl, UrlConstraints(host_required=False)]
+    """
+    The URI of the resource that has been updated. This might be a sub-resource of the
+    one that the client actually subscribed to.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class ResourceUpdatedNotification(
+    Notification[ResourceUpdatedNotificationParams, Literal["notifications/resources/updated"]]
+):
+    """
+    A notification from the server to the client, informing it that a resource has
+    changed and may need to be read again.
+    """
+
+    method: Literal["notifications/resources/updated"] = "notifications/resources/updated"
+    params: ResourceUpdatedNotificationParams
+
+
+class ListPromptsRequest(PaginatedRequest[Literal["prompts/list"]]):
+    """Sent from the client to request a list of prompts and prompt templates."""
+
+    method: Literal["prompts/list"] = "prompts/list"
+
+
+class PromptArgument(BaseModel):
+    """An argument for a prompt template."""
+
+    name: str
+    """The name of the argument."""
+    description: str | None = None
+    """A human-readable description of the argument."""
+    required: bool | None = None
+    """Whether this argument must be provided."""
+    model_config = ConfigDict(extra="allow")
+
+
+class Prompt(BaseMetadata):
+    """A prompt or prompt template that the server offers."""
+
+    description: str | None = None
+    """An optional description of what this prompt provides."""
+    arguments: list[PromptArgument] | None = None
+    """A list of arguments to use for templating the prompt."""
+    icons: list[Icon] | None = None
+    """An optional list of icons for this prompt."""
+    meta: dict[str, Any] | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class ListPromptsResult(PaginatedResult):
+    """The server's response to a prompts/list request from the client."""
+
+    prompts: list[Prompt]
+
+
+class GetPromptRequestParams(RequestParams):
+    """Parameters for getting a prompt."""
+
+    name: str
+    """The name of the prompt or prompt template."""
+    arguments: dict[str, str] | None = None
+    """Arguments to use for templating the prompt."""
+    model_config = ConfigDict(extra="allow")
+
+
+class GetPromptRequest(Request[GetPromptRequestParams, Literal["prompts/get"]]):
+    """Used by the client to get a prompt provided by the server."""
+
+    method: Literal["prompts/get"] = "prompts/get"
+    params: GetPromptRequestParams
+
+
+class TextContent(BaseModel):
+    """Text content for a message."""
+
+    type: Literal["text"]
+    text: str
+    """The text content of the message."""
+    annotations: Annotations | None = None
+    meta: dict[str, Any] | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class ImageContent(BaseModel):
+    """Image content for a message."""
+
+    type: Literal["image"]
+    data: str
+    """The base64-encoded image data."""
+    mimeType: str
+    """
+    The MIME type of the image. Different providers may support different
+    image types.
+    """
+    annotations: Annotations | None = None
+    meta: dict[str, Any] | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class AudioContent(BaseModel):
+    """Audio content for a message."""
+
+    type: Literal["audio"]
+    data: str
+    """The base64-encoded audio data."""
+    mimeType: str
+    """
+    The MIME type of the audio. Different providers may support different
+    audio types.
+    """
+    annotations: Annotations | None = None
+    meta: dict[str, Any] | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class ToolUseContent(BaseModel):
+    """
+    Content representing an assistant's request to invoke a tool.
+
+    This content type appears in assistant messages when the LLM wants to call a tool
+    during sampling. The server should execute the tool and return a ToolResultContent
+    in the next user message.
+    """
+
+    type: Literal["tool_use"]
+    """Discriminator for tool use content."""
+
+    name: str
+    """The name of the tool to invoke. Must match a tool name from the request's tools array."""
+
+    id: str
+    """Unique identifier for this tool call, used to correlate with ToolResultContent."""
+
+    input: dict[str, Any]
+    """Arguments to pass to the tool. Must conform to the tool's inputSchema."""
+
+    meta: dict[str, Any] | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class ToolResultContent(BaseModel):
+    """
+    Content representing the result of a tool execution.
+
+    This content type appears in user messages as a response to a ToolUseContent
+    from the assistant. It contains the output of executing the requested tool.
+    """
+
+    type: Literal["tool_result"]
+    """Discriminator for tool result content."""
+
+    toolUseId: str
+    """The unique identifier that corresponds to the tool call's id field."""
+
+    content: list["ContentBlock"] = []
+    """
+    A list of content objects representing the tool result.
+    Defaults to empty list if not provided.
+    """
+
+    structuredContent: dict[str, Any] | None = None
+    """
+    Optional structured tool output that matches the tool's outputSchema (if defined).
+    """
+
+    isError: bool | None = None
+    """Whether the tool execution resulted in an error."""
+
+    meta: dict[str, Any] | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+SamplingMessageContentBlock: TypeAlias = TextContent | ImageContent | AudioContent | ToolUseContent | ToolResultContent
+"""Content block types allowed in sampling messages."""
+
+SamplingContent: TypeAlias = TextContent | ImageContent | AudioContent
+"""Basic content types for sampling responses (without tool use).
+Used for backwards-compatible CreateMessageResult when tools are not used."""
+
+
+class SamplingMessage(BaseModel):
+    """Describes a message issued to or received from an LLM API."""
+
+    role: Role
+    content: SamplingMessageContentBlock | list[SamplingMessageContentBlock]
+    """
+    Message content. Can be a single content block or an array of content blocks
+    for multi-modal messages and tool interactions.
+    """
+    meta: dict[str, Any] | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+    model_config = ConfigDict(extra="allow")
+
+    @property
+    def content_as_list(self) -> list[SamplingMessageContentBlock]:
+        """Returns the content as a list of content blocks, regardless of whether
+        it was originally a single block or a list."""
+        return self.content if isinstance(self.content, list) else [self.content]
+
+
+class EmbeddedResource(BaseModel):
+    """
+    The contents of a resource, embedded into a prompt or tool call result.
+
+    It is up to the client how best to render embedded resources for the benefit
+    of the LLM and/or the user.
+    """
+
+    type: Literal["resource"]
+    resource: TextResourceContents | BlobResourceContents
+    annotations: Annotations | None = None
+    meta: dict[str, Any] | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class ResourceLink(Resource):
+    """
+    A resource that the server is capable of reading, included in a prompt or tool call result.
+
+    Note: resource links returned by tools are not guaranteed to appear in the results of `resources/list` requests.
+    """
+
+    type: Literal["resource_link"]
+
+
+ContentBlock = TextContent | ImageContent | AudioContent | ResourceLink | EmbeddedResource
+"""A content block that can be used in prompts and tool results."""
+
+Content: TypeAlias = ContentBlock
+# """DEPRECATED: Content is deprecated, you should use ContentBlock directly."""
+
+
+class PromptMessage(BaseModel):
+    """Describes a message returned as part of a prompt."""
+
+    role: Role
+    content: ContentBlock
+    model_config = ConfigDict(extra="allow")
+
+
+class GetPromptResult(Result):
+    """The server's response to a prompts/get request from the client."""
+
+    description: str | None = None
+    """An optional description for the prompt."""
+    messages: list[PromptMessage]
+
+
+class PromptListChangedNotification(
+    Notification[NotificationParams | None, Literal["notifications/prompts/list_changed"]]
+):
+    """
+    An optional notification from the server to the client, informing it that the list
+    of prompts it offers has changed.
+    """
+
+    method: Literal["notifications/prompts/list_changed"] = "notifications/prompts/list_changed"
+    params: NotificationParams | None = None
+
+
+class ListToolsRequest(PaginatedRequest[Literal["tools/list"]]):
+    """Sent from the client to request a list of tools the server has."""
+
+    method: Literal["tools/list"] = "tools/list"
+
+
+class ToolAnnotations(BaseModel):
+    """
+    Additional properties describing a Tool to clients.
+
+    NOTE: all properties in ToolAnnotations are **hints**.
+    They are not guaranteed to provide a faithful description of
+    tool behavior (including descriptive properties like `title`).
+
+    Clients should never make tool use decisions based on ToolAnnotations
+    received from untrusted servers.
+    """
+
+    title: str | None = None
+    """A human-readable title for the tool."""
+
+    readOnlyHint: bool | None = None
+    """
+    If true, the tool does not modify its environment.
+    Default: false
+    """
+
+    destructiveHint: bool | None = None
+    """
+    If true, the tool may perform destructive updates to its environment.
+    If false, the tool performs only additive updates.
+    (This property is meaningful only when `readOnlyHint == false`)
+    Default: true
+    """
+
+    idempotentHint: bool | None = None
+    """
+    If true, calling the tool repeatedly with the same arguments
+    will have no additional effect on the its environment.
+    (This property is meaningful only when `readOnlyHint == false`)
+    Default: false
+    """
+
+    openWorldHint: bool | None = None
+    """
+    If true, this tool may interact with an "open world" of external
+    entities. If false, the tool's domain of interaction is closed.
+    For example, the world of a web search tool is open, whereas that
+    of a memory tool is not.
+    Default: true
+    """
+
+    model_config = ConfigDict(extra="allow")
+
+
+class ToolExecution(BaseModel):
+    """Execution-related properties for a tool."""
+
+    model_config = ConfigDict(extra="allow")
+
+    taskSupport: TaskExecutionMode | None = None
+    """
+    Indicates whether this tool supports task-augmented execution.
+    This allows clients to handle long-running operations through polling
+    the task system.
+
+    - "forbidden": Tool does not support task-augmented execution (default when absent)
+    - "optional": Tool may support task-augmented execution
+    - "required": Tool requires task-augmented execution
+
+    Default: "forbidden"
+    """
+
+
+class Tool(BaseMetadata):
+    """Definition for a tool the client can call."""
+
+    description: str | None = None
+    """A human-readable description of the tool."""
+    inputSchema: dict[str, Any]
+    """A JSON Schema object defining the expected parameters for the tool."""
+    outputSchema: dict[str, Any] | None = None
+    """
+    An optional JSON Schema object defining the structure of the tool's output
+    returned in the structuredContent field of a CallToolResult.
+    """
+    icons: list[Icon] | None = None
+    """An optional list of icons for this tool."""
+    annotations: ToolAnnotations | None = None
+    """Optional additional tool information."""
+    meta: dict[str, Any] | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+
+    execution: ToolExecution | None = None
+
+    model_config = ConfigDict(extra="allow")
+
+
+class ListToolsResult(PaginatedResult):
+    """The server's response to a tools/list request from the client."""
+
+    tools: list[Tool]
+
+
+class CallToolRequestParams(RequestParams):
+    """Parameters for calling a tool."""
+
+    name: str
+    arguments: dict[str, Any] | None = None
+    model_config = ConfigDict(extra="allow")
+
+
+class CallToolRequest(Request[CallToolRequestParams, Literal["tools/call"]]):
+    """Used by the client to invoke a tool provided by the server."""
+
+    method: Literal["tools/call"] = "tools/call"
+    params: CallToolRequestParams
+
+
+class CallToolResult(Result):
+    """The server's response to a tool call."""
+
+    content: list[ContentBlock]
+    structuredContent: dict[str, Any] | None = None
+    """An optional JSON object that represents the structured result of the tool call."""
+    isError: bool = False
+
+
+class ToolListChangedNotification(Notification[NotificationParams | None, Literal["notifications/tools/list_changed"]]):
+    """
+    An optional notification from the server to the client, informing it that the list
+    of tools it offers has changed.
+    """
+
+    method: Literal["notifications/tools/list_changed"] = "notifications/tools/list_changed"
+    params: NotificationParams | None = None
+
+
+LoggingLevel = Literal["debug", "info", "notice", "warning", "error", "critical", "alert", "emergency"]
+
+
+class SetLevelRequestParams(RequestParams):
+    """Parameters for setting the logging level."""
+
+    level: LoggingLevel
+    """The level of logging that the client wants to receive from the server."""
+    model_config = ConfigDict(extra="allow")
+
+
+class SetLevelRequest(Request[SetLevelRequestParams, Literal["logging/setLevel"]]):
+    """A request from the client to the server, to enable or adjust logging."""
+
+    method: Literal["logging/setLevel"] = "logging/setLevel"
+    params: SetLevelRequestParams
+
+
+class LoggingMessageNotificationParams(NotificationParams):
+    """Parameters for logging message notifications."""
+
+    level: LoggingLevel
+    """The severity of this log message."""
+    logger: str | None = None
+    """An optional name of the logger issuing this message."""
+    data: Any
+    """
+    The data to be logged, such as a string message or an object. Any JSON serializable
+    type is allowed here.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class LoggingMessageNotification(Notification[LoggingMessageNotificationParams, Literal["notifications/message"]]):
+    """Notification of a log message passed from server to client."""
+
+    method: Literal["notifications/message"] = "notifications/message"
+    params: LoggingMessageNotificationParams
+
+
+IncludeContext = Literal["none", "thisServer", "allServers"]
+
+
+class ModelHint(BaseModel):
+    """Hints to use for model selection."""
+
+    name: str | None = None
+    """A hint for a model name."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class ModelPreferences(BaseModel):
+    """
+    The server's preferences for model selection, requested by the client during
+    sampling.
+
+    Because LLMs can vary along multiple dimensions, choosing the "best" model is
+    rarely straightforward.  Different models excel in different areas—some are
+    faster but less capable, others are more capable but more expensive, and so
+    on. This interface allows servers to express their priorities across multiple
+    dimensions to help clients make an appropriate selection for their use case.
+
+    These preferences are always advisory. The client MAY ignore them. It is also
+    up to the client to decide how to interpret these preferences and how to
+    balance them against other considerations.
+    """
+
+    hints: list[ModelHint] | None = None
+    """
+    Optional hints to use for model selection.
+
+    If multiple hints are specified, the client MUST evaluate them in order
+    (such that the first match is taken).
+
+    The client SHOULD prioritize these hints over the numeric priorities, but
+    MAY still use the priorities to select from ambiguous matches.
+    """
+
+    costPriority: float | None = None
+    """
+    How much to prioritize cost when selecting a model. A value of 0 means cost
+    is not important, while a value of 1 means cost is the most important
+    factor.
+    """
+
+    speedPriority: float | None = None
+    """
+    How much to prioritize sampling speed (latency) when selecting a model. A
+    value of 0 means speed is not important, while a value of 1 means speed is
+    the most important factor.
+    """
+
+    intelligencePriority: float | None = None
+    """
+    How much to prioritize intelligence and capabilities when selecting a
+    model. A value of 0 means intelligence is not important, while a value of 1
+    means intelligence is the most important factor.
+    """
+
+    model_config = ConfigDict(extra="allow")
+
+
+class ToolChoice(BaseModel):
+    """
+    Controls tool usage behavior during sampling.
+
+    Allows the server to specify whether and how the LLM should use tools
+    in its response.
+    """
+
+    mode: Literal["auto", "required", "none"] | None = None
+    """
+    Controls when tools are used:
+    - "auto": Model decides whether to use tools (default)
+    - "required": Model MUST use at least one tool before completing
+    - "none": Model should not use tools
+    """
+
+    model_config = ConfigDict(extra="allow")
+
+
+class CreateMessageRequestParams(RequestParams):
+    """Parameters for creating a message."""
+
+    messages: list[SamplingMessage]
+    modelPreferences: ModelPreferences | None = None
+    """
+    The server's preferences for which model to select. The client MAY ignore
+    these preferences.
+    """
+    systemPrompt: str | None = None
+    """An optional system prompt the server wants to use for sampling."""
+    includeContext: IncludeContext | None = None
+    """
+    A request to include context from one or more MCP servers (including the caller), to
+    be attached to the prompt.
+    """
+    temperature: float | None = None
+    maxTokens: int
+    """The maximum number of tokens to sample, as requested by the server."""
+    stopSequences: list[str] | None = None
+    metadata: dict[str, Any] | None = None
+    """Optional metadata to pass through to the LLM provider."""
+    tools: list["Tool"] | None = None
+    """
+    Tool definitions for the LLM to use during sampling.
+    Requires clientCapabilities.sampling.tools to be present.
+    """
+    toolChoice: ToolChoice | None = None
+    """
+    Controls tool usage behavior.
+    Requires clientCapabilities.sampling.tools and the tools parameter to be present.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class CreateMessageRequest(Request[CreateMessageRequestParams, Literal["sampling/createMessage"]]):
+    """A request from the server to sample an LLM via the client."""
+
+    method: Literal["sampling/createMessage"] = "sampling/createMessage"
+    params: CreateMessageRequestParams
+
+
+StopReason = Literal["endTurn", "stopSequence", "maxTokens", "toolUse"] | str
+
+
+class CreateMessageResult(Result):
+    """The client's response to a sampling/create_message request from the server.
+
+    This is the backwards-compatible version that returns single content (no arrays).
+    Used when the request does not include tools.
+    """
+
+    role: Role
+    """The role of the message sender (typically 'assistant' for LLM responses)."""
+    content: SamplingContent
+    """Response content. Single content block (text, image, or audio)."""
+    model: str
+    """The name of the model that generated the message."""
+    stopReason: StopReason | None = None
+    """The reason why sampling stopped, if known."""
+
+
+class CreateMessageResultWithTools(Result):
+    """The client's response to a sampling/create_message request when tools were provided.
+
+    This version supports array content for tool use flows.
+    """
+
+    role: Role
+    """The role of the message sender (typically 'assistant' for LLM responses)."""
+    content: SamplingMessageContentBlock | list[SamplingMessageContentBlock]
+    """
+    Response content. May be a single content block or an array.
+    May include ToolUseContent if stopReason is 'toolUse'.
+    """
+    model: str
+    """The name of the model that generated the message."""
+    stopReason: StopReason | None = None
+    """
+    The reason why sampling stopped, if known.
+    'toolUse' indicates the model wants to use a tool.
+    """
+
+    @property
+    def content_as_list(self) -> list[SamplingMessageContentBlock]:
+        """Returns the content as a list of content blocks, regardless of whether
+        it was originally a single block or a list."""
+        return self.content if isinstance(self.content, list) else [self.content]
+
+
+class ResourceTemplateReference(BaseModel):
+    """A reference to a resource or resource template definition."""
+
+    type: Literal["ref/resource"]
+    uri: str
+    """The URI or URI template of the resource."""
+    model_config = ConfigDict(extra="allow")
+
+
+@deprecated("`ResourceReference` is deprecated, you should use `ResourceTemplateReference`.")
+class ResourceReference(ResourceTemplateReference):
+    pass
+
+
+class PromptReference(BaseModel):
+    """Identifies a prompt."""
+
+    type: Literal["ref/prompt"]
+    name: str
+    """The name of the prompt or prompt template"""
+    model_config = ConfigDict(extra="allow")
+
+
+class CompletionArgument(BaseModel):
+    """The argument's information for completion requests."""
+
+    name: str
+    """The name of the argument"""
+    value: str
+    """The value of the argument to use for completion matching."""
+    model_config = ConfigDict(extra="allow")
+
+
+class CompletionContext(BaseModel):
+    """Additional, optional context for completions."""
+
+    arguments: dict[str, str] | None = None
+    """Previously-resolved variables in a URI template or prompt."""
+    model_config = ConfigDict(extra="allow")
+
+
+class CompleteRequestParams(RequestParams):
+    """Parameters for completion requests."""
+
+    ref: ResourceTemplateReference | PromptReference
+    argument: CompletionArgument
+    context: CompletionContext | None = None
+    """Additional, optional context for completions"""
+    model_config = ConfigDict(extra="allow")
+
+
+class CompleteRequest(Request[CompleteRequestParams, Literal["completion/complete"]]):
+    """A request from the client to the server, to ask for completion options."""
+
+    method: Literal["completion/complete"] = "completion/complete"
+    params: CompleteRequestParams
+
+
+class Completion(BaseModel):
+    """Completion information."""
+
+    values: list[str]
+    """An array of completion values. Must not exceed 100 items."""
+    total: int | None = None
+    """
+    The total number of completion options available. This can exceed the number of
+    values actually sent in the response.
+    """
+    hasMore: bool | None = None
+    """
+    Indicates whether there are additional completion options beyond those provided in
+    the current response, even if the exact total is unknown.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class CompleteResult(Result):
+    """The server's response to a completion/complete request"""
+
+    completion: Completion
+
+
+class ListRootsRequest(Request[RequestParams | None, Literal["roots/list"]]):
+    """
+    Sent from the server to request a list of root URIs from the client. Roots allow
+    servers to ask for specific directories or files to operate on. A common example
+    for roots is providing a set of repositories or directories a server should operate
+    on.
+
+    This request is typically used when the server needs to understand the file system
+    structure or access specific locations that the client has permission to read from.
+    """
+
+    method: Literal["roots/list"] = "roots/list"
+    params: RequestParams | None = None
+
+
+class Root(BaseModel):
+    """Represents a root directory or file that the server can operate on."""
+
+    uri: FileUrl
+    """
+    The URI identifying the root. This *must* start with file:// for now.
+    This restriction may be relaxed in future versions of the protocol to allow
+    other URI schemes.
+    """
+    name: str | None = None
+    """
+    An optional name for the root. This can be used to provide a human-readable
+    identifier for the root, which may be useful for display purposes or for
+    referencing the root in other parts of the application.
+    """
+    meta: dict[str, Any] | None = Field(alias="_meta", default=None)
+    """
+    See [MCP specification](https://github.com/modelcontextprotocol/modelcontextprotocol/blob/47339c03c143bb4ec01a26e721a1b8fe66634ebe/docs/specification/draft/basic/index.mdx#general-fields)
+    for notes on _meta usage.
+    """
+    model_config = ConfigDict(extra="allow")
+
+
+class ListRootsResult(Result):
+    """
+    The client's response to a roots/list request from the server.
+    This result contains an array of Root objects, each representing a root directory
+    or file that the server can operate on.
+    """
+
+    roots: list[Root]
+
+
+class RootsListChangedNotification(
+    Notification[NotificationParams | None, Literal["notifications/roots/list_changed"]]
+):
+    """
+    A notification from the client to the server, informing it that the list of
+    roots has changed.
+
+    This notification should be sent whenever the client adds, removes, or
+    modifies any root. The server should then request an updated list of roots
+    using the ListRootsRequest.
+    """
+
+    method: Literal["notifications/roots/list_changed"] = "notifications/roots/list_changed"
+    params: NotificationParams | None = None
+
+
+class CancelledNotificationParams(NotificationParams):
+    """Parameters for cancellation notifications."""
+
+    requestId: RequestId | None = None
+    """
+    The ID of the request to cancel.
+
+    This MUST correspond to the ID of a request previously issued in the same direction.
+    This MUST be provided for cancelling non-task requests.
+    This MUST NOT be used for cancelling tasks (use the `tasks/cancel` request instead).
+    """
+    reason: str | None = None
+    """An optional string describing the reason for the cancellation."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class CancelledNotification(Notification[CancelledNotificationParams, Literal["notifications/cancelled"]]):
+    """
+    This notification can be sent by either side to indicate that it is canceling a
+    previously-issued request.
+    """
+
+    method: Literal["notifications/cancelled"] = "notifications/cancelled"
+    params: CancelledNotificationParams
+
+
+class ElicitCompleteNotificationParams(NotificationParams):
+    """Parameters for elicitation completion notifications."""
+
+    elicitationId: str
+    """The unique identifier of the elicitation that was completed."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+class ElicitCompleteNotification(
+    Notification[ElicitCompleteNotificationParams, Literal["notifications/elicitation/complete"]]
+):
+    """
+    A notification from the server to the client, informing it that a URL mode
+    elicitation has been completed.
+
+    Clients MAY use the notification to automatically retry requests that received a
+    URLElicitationRequiredError, update the user interface, or otherwise continue
+    an interaction. However, because delivery of the notification is not guaranteed,
+    clients must not wait indefinitely for a notification from the server.
+    """
+
+    method: Literal["notifications/elicitation/complete"] = "notifications/elicitation/complete"
+    params: ElicitCompleteNotificationParams
+
+
+ClientRequestType: TypeAlias = (
+    PingRequest
+    | InitializeRequest
+    | CompleteRequest
+    | SetLevelRequest
+    | GetPromptRequest
+    | ListPromptsRequest
+    | ListResourcesRequest
+    | ListResourceTemplatesRequest
+    | ReadResourceRequest
+    | SubscribeRequest
+    | UnsubscribeRequest
+    | CallToolRequest
+    | ListToolsRequest
+    | GetTaskRequest
+    | GetTaskPayloadRequest
+    | ListTasksRequest
+    | CancelTaskRequest
+)
+
+
+class ClientRequest(RootModel[ClientRequestType]):
+    pass
+
+
+ClientNotificationType: TypeAlias = (
+    CancelledNotification
+    | ProgressNotification
+    | InitializedNotification
+    | RootsListChangedNotification
+    | TaskStatusNotification
+)
+
+
+class ClientNotification(RootModel[ClientNotificationType]):
+    pass
+
+
+# Type for elicitation schema - a JSON Schema dict
+ElicitRequestedSchema: TypeAlias = dict[str, Any]
+"""Schema for elicitation requests."""
+
+
+class ElicitRequestFormParams(RequestParams):
+    """Parameters for form mode elicitation requests.
+
+    Form mode collects non-sensitive information from the user via an in-band form
+    rendered by the client.
+    """
+
+    mode: Literal["form"] = "form"
+    """The elicitation mode (always "form" for this type)."""
+
+    message: str
+    """The message to present to the user describing what information is being requested."""
+
+    requestedSchema: ElicitRequestedSchema
+    """
+    A restricted subset of JSON Schema defining the structure of expected response.
+    Only top-level properties are allowed, without nesting.
+    """
+
+    model_config = ConfigDict(extra="allow")
+
+
+class ElicitRequestURLParams(RequestParams):
+    """Parameters for URL mode elicitation requests.
+
+    URL mode directs users to external URLs for sensitive out-of-band interactions
+    like OAuth flows, credential collection, or payment processing.
+    """
+
+    mode: Literal["url"] = "url"
+    """The elicitation mode (always "url" for this type)."""
+
+    message: str
+    """The message to present to the user explaining why the interaction is needed."""
+
+    url: str
+    """The URL that the user should navigate to."""
+
+    elicitationId: str
+    """
+    The ID of the elicitation, which must be unique within the context of the server.
+    The client MUST treat this ID as an opaque value.
+    """
+
+    model_config = ConfigDict(extra="allow")
+
+
+# Union type for elicitation request parameters
+ElicitRequestParams: TypeAlias = ElicitRequestURLParams | ElicitRequestFormParams
+"""Parameters for elicitation requests - either form or URL mode."""
+
+
+class ElicitRequest(Request[ElicitRequestParams, Literal["elicitation/create"]]):
+    """A request from the server to elicit information from the client."""
+
+    method: Literal["elicitation/create"] = "elicitation/create"
+    params: ElicitRequestParams
+
+
+class ElicitResult(Result):
+    """The client's response to an elicitation request."""
+
+    action: Literal["accept", "decline", "cancel"]
+    """
+    The user action in response to the elicitation.
+    - "accept": User submitted the form/confirmed the action (or consented to URL navigation)
+    - "decline": User explicitly declined the action
+    - "cancel": User dismissed without making an explicit choice
+    """
+
+    content: dict[str, str | int | float | bool | list[str] | None] | None = None
+    """
+    The submitted form data, only present when action is "accept" in form mode.
+    Contains values matching the requested schema. Values can be strings, integers,
+    booleans, or arrays of strings.
+    For URL mode, this field is omitted.
+    """
+
+
+class ElicitationRequiredErrorData(BaseModel):
+    """Error data for URLElicitationRequiredError.
+
+    Servers return this when a request cannot be processed until one or more
+    URL mode elicitations are completed.
+    """
+
+    elicitations: list[ElicitRequestURLParams]
+    """List of URL mode elicitations that must be completed."""
+
+    model_config = ConfigDict(extra="allow")
+
+
+ClientResultType: TypeAlias = (
+    EmptyResult
+    | CreateMessageResult
+    | CreateMessageResultWithTools
+    | ListRootsResult
+    | ElicitResult
+    | GetTaskResult
+    | GetTaskPayloadResult
+    | ListTasksResult
+    | CancelTaskResult
+    | CreateTaskResult
+)
+
+
+class ClientResult(RootModel[ClientResultType]):
+    pass
+
+
+ServerRequestType: TypeAlias = (
+    PingRequest
+    | CreateMessageRequest
+    | ListRootsRequest
+    | ElicitRequest
+    | GetTaskRequest
+    | GetTaskPayloadRequest
+    | ListTasksRequest
+    | CancelTaskRequest
+)
+
+
+class ServerRequest(RootModel[ServerRequestType]):
+    pass
+
+
+ServerNotificationType: TypeAlias = (
+    CancelledNotification
+    | ProgressNotification
+    | LoggingMessageNotification
+    | ResourceUpdatedNotification
+    | ResourceListChangedNotification
+    | ToolListChangedNotification
+    | PromptListChangedNotification
+    | ElicitCompleteNotification
+    | TaskStatusNotification
+)
+
+
+class ServerNotification(RootModel[ServerNotificationType]):
+    pass
+
+
+ServerResultType: TypeAlias = (
+    EmptyResult
+    | InitializeResult
+    | CompleteResult
+    | GetPromptResult
+    | ListPromptsResult
+    | ListResourcesResult
+    | ListResourceTemplatesResult
+    | ReadResourceResult
+    | CallToolResult
+    | ListToolsResult
+    | GetTaskResult
+    | GetTaskPayloadResult
+    | ListTasksResult
+    | CancelTaskResult
+    | CreateTaskResult
+)
+
+
+class ServerResult(RootModel[ServerResultType]):
+    pass

hai-mcp-pr7/.venv/lib/python3.13/site-packages/multipart/__init__.py

@@ -0,0 +1,38 @@
+# Copyright 2012, Andrew Dunham
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#    https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# This only works if using a file system, other loaders not implemented.
+
+import importlib.util
+import sys
+import warnings
+from pathlib import Path
+
+for p in sys.path:
+    file_path = Path(p, "multipart.py")
+    try:
+        if file_path.is_file():
+            spec = importlib.util.spec_from_file_location("multipart", file_path)
+            assert spec is not None, f"{file_path} found but not loadable!"
+            module = importlib.util.module_from_spec(spec)
+            sys.modules["multipart"] = module
+            assert spec.loader is not None, f"{file_path} must be loadable!"
+            spec.loader.exec_module(module)
+            break
+    except PermissionError:
+        pass
+else:
+    warnings.warn("Please use `import python_multipart` instead.", PendingDeprecationWarning, stacklevel=2)
+    from python_multipart import *
+    from python_multipart import __all__, __version__

hai-mcp-pr7/.venv/lib/python3.13/site-packages/multipart/decoders.py

@@ -0,0 +1 @@
+from python_multipart.decoders import *

hai-mcp-pr7/.venv/lib/python3.13/site-packages/multipart/exceptions.py

@@ -0,0 +1 @@
+from python_multipart.exceptions import *

hai-mcp-pr7/.venv/lib/python3.13/site-packages/multipart/multipart.py

@@ -0,0 +1 @@
+from python_multipart.multipart import *

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging-26.2.dist-info/INSTALLER

@@ -0,0 +1 @@
+uv

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging-26.2.dist-info/METADATA

@@ -0,0 +1,112 @@
+Metadata-Version: 2.4
+Name: packaging
+Version: 26.2
+Summary: Core utilities for Python packages
+Author-email: Donald Stufft <donald@stufft.io>
+Requires-Python: >=3.8
+Description-Content-Type: text/x-rst
+License-Expression: Apache-2.0 OR BSD-2-Clause
+Classifier: Development Status :: 5 - Production/Stable
+Classifier: Intended Audience :: Developers
+Classifier: Programming Language :: Python
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3 :: Only
+Classifier: Programming Language :: Python :: 3.8
+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 :: Implementation :: CPython
+Classifier: Programming Language :: Python :: Implementation :: PyPy
+Classifier: Programming Language :: Python :: Free Threading :: 4 - Resilient
+Classifier: Typing :: Typed
+License-File: LICENSE
+License-File: LICENSE.APACHE
+License-File: LICENSE.BSD
+Project-URL: Documentation, https://packaging.pypa.io/
+Project-URL: Source, https://github.com/pypa/packaging
+
+packaging
+=========
+
+.. start-intro
+
+Reusable core utilities for various Python Packaging
+`interoperability specifications <https://packaging.python.org/specifications/>`_.
+
+This library provides utilities that implement the interoperability
+specifications which have clearly one correct behaviour (eg: :pep:`440`)
+or benefit greatly from having a single shared implementation (eg: :pep:`425`).
+
+.. end-intro
+
+The ``packaging`` project includes the following: version handling, specifiers,
+markers, requirements, tags, metadata, lockfiles, utilities.
+
+Documentation
+-------------
+
+The `documentation`_ provides information and the API for the following:
+
+- Version Handling
+- Specifiers
+- Markers
+- Licenses
+- Requirements
+- Metadata
+- Tags
+- Lockfiles (pylock)
+- Direct URL helpers
+- Dependency groups
+- Errors
+- Utilities
+
+Installation
+------------
+
+Use ``pip`` to install these utilities::
+
+    pip install packaging
+
+The ``packaging`` library uses calendar-based versioning (``YY.N``).
+
+Discussion
+----------
+
+If you run into bugs, you can file them in our `issue tracker`_.
+
+You can also join discussions on `GitHub Discussions`_ to ask questions or get involved.
+
+.. _`documentation`: https://packaging.pypa.io/
+.. _`issue tracker`: https://github.com/pypa/packaging/issues
+.. _`GitHub Discussions`: https://github.com/pypa/packaging/discussions
+
+
+Code of Conduct
+---------------
+
+Everyone interacting in the packaging project's codebases, issue trackers, chat
+rooms, and mailing lists is expected to follow the `PSF Code of Conduct`_.
+
+.. _PSF Code of Conduct: https://github.com/pypa/.github/blob/main/CODE_OF_CONDUCT.md
+
+Contributing
+------------
+
+The ``CONTRIBUTING.rst`` file outlines how to contribute to this project as
+well as how to report a potential security issue. The documentation for this
+project also covers information about `project development`_ and `security`_.
+
+.. _`project development`: https://packaging.pypa.io/en/latest/development/
+.. _`security`: https://packaging.pypa.io/en/latest/security/
+
+Project History
+---------------
+
+Please review the ``CHANGELOG.rst`` file or the `Changelog documentation`_ for
+recent changes and project history.
+
+.. _`Changelog documentation`: https://packaging.pypa.io/en/latest/changelog/
+

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging-26.2.dist-info/RECORD

@@ -0,0 +1,29 @@
+packaging-26.2.dist-info/INSTALLER,sha256=5hhM4Q4mYTT9z6QB6PGpUAW81PGNFrYrdXMj4oM_6ak,2
+packaging-26.2.dist-info/METADATA,sha256=T5y815M0FaR5P3dnyYoralEsgj_IHIczeBVwXyMOyr8,3543
+packaging-26.2.dist-info/RECORD,,
+packaging-26.2.dist-info/REQUESTED,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
+packaging-26.2.dist-info/WHEEL,sha256=G2gURzTEtmeR8nrdXUJfNiB3VYVxigPQ-bEQujpNiNs,82
+packaging-26.2.dist-info/licenses/LICENSE,sha256=ytHvW9NA1z4HS6YU0m996spceUDD2MNIUuZcSQlobEg,197
+packaging-26.2.dist-info/licenses/LICENSE.APACHE,sha256=DVQuDIgE45qn836wDaWnYhSdxoLXgpRRKH4RuTjpRZQ,10174
+packaging-26.2.dist-info/licenses/LICENSE.BSD,sha256=tw5-m3QvHMb5SLNMFqo5_-zpQZY2S8iP8NIYDwAo-sU,1344
+packaging/__init__.py,sha256=QhMEdPu2XogrJzV3S0KWS6t7l0I9k8EeDRJl4fnw87s,494
+packaging/_elffile.py,sha256=-sKkptYqzYw2-x3QByJa5mB4rfPWu1pxkZHRx1WAFCY,3211
+packaging/_manylinux.py,sha256=Hf6nB0cOrayEs96-p3oIXAgGnFquv20DO5l-o2_Xnv0,9559
+packaging/_musllinux.py,sha256=Z6swjH3MA7XS3qXnmMN7QPhqP3fnoYI0eQ18e9-HgAE,2707
+packaging/_parser.py,sha256=Kf2nsDw4c54X82pY8ba4F02Bve6OygGMAjL-Begqcew,11698
+packaging/_structures.py,sha256=60jRbF78p8z5MKnNd6cAprgOadCJHV0DlmUmRBqFZcs,1109
+packaging/_tokenizer.py,sha256=tFU2Wr-ZZJdAbkXLEJo7qUQDJaIkfft9DqaifiEND7A,5391
+packaging/dependency_groups.py,sha256=XZIAVFK9uHG4RCGprmJn3VInUWMesxha_kytJuMO9eY,10218
+packaging/direct_url.py,sha256=eKmbDiPP1sLV4Mj_kCSZqqknrIyVO9Sr7JpF8KCjp4U,10917
+packaging/errors.py,sha256=6hfEYXAf8v_IF65-lFadJOMIieBP2xIKtyEXjG1nGIs,2680
+packaging/licenses/__init__.py,sha256=_Jx0XRiD_58palsWnyLrLuh59ZpGCPIPXLKdZo9OJvQ,7293
+packaging/licenses/_spdx.py,sha256=WW7DXiyg68up_YND_wpRYlr1SHhiV4FfJLQffghhMxQ,51122
+packaging/markers.py,sha256=8fDIUhAF6YMnCNB5FSiwh9pEIusiFzAF73J-0OB8bTk,17055
+packaging/metadata.py,sha256=crAh0E3GVGVqPlu6EdRFsaG-Y6UYznTUqjuGKRGPv6c,38770
+packaging/py.typed,sha256=47DEQpj8HBSa-_TImW-5JCeuQeRkm5NMpJWZG3hSuFU,0
+packaging/pylock.py,sha256=G_1gncTmDbRLY1jo4VDI9Uw-b5IErh_Q9V_BbVJTmD8,33890
+packaging/requirements.py,sha256=dd1c9aa1gp5NI6btF6UFRQjPn1nxQXnE_T34yDDTEpc,4383
+packaging/specifiers.py,sha256=Mfp8avQg0lVot17to9lVKBtZD1FsWBTItoGwFUZ3wtg,71514
+packaging/tags.py,sha256=NQ1weo69_Sjte3xBZ1I_G63CIgCmaN0C24mz-z3hGYo,34224
+packaging/utils.py,sha256=M7-JMKic2sP1YtV_8aW7eVGB-x3ADuKCiSrsVeCd2Uo,9848
+packaging/version.py,sha256=Y1aTtxe3sn2xOMa5BdI85-AcHuybbanOVkEvvSRRC8I,38369

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging-26.2.dist-info/WHEEL

@@ -0,0 +1,4 @@
+Wheel-Version: 1.0
+Generator: flit 3.12.0
+Root-Is-Purelib: true
+Tag: py3-none-any

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging-26.2.dist-info/licenses/LICENSE

@@ -0,0 +1,3 @@
+This software is made available under the terms of *either* of the licenses
+found in LICENSE.APACHE or LICENSE.BSD. Contributions to this software is made
+under the terms of *both* these licenses.

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging-26.2.dist-info/licenses/LICENSE.APACHE

@@ -0,0 +1,177 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
+      "Legal Entity" shall mean the union of the acting entity and all
+      other entities that control, are controlled by, or are under common
+      control with that entity. For the purposes of this definition,
+      "control" means (i) the power, direct or indirect, to cause the
+      direction or management of such entity, whether by contract or
+      otherwise, or (ii) ownership of fifty percent (50%) or more of the
+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
+
+      "Source" form shall mean the preferred form for making modifications,
+      including but not limited to software source code, documentation
+      source, and configuration files.
+
+      "Object" form shall mean any form resulting from mechanical
+      transformation or translation of a Source form, including but
+      not limited to compiled object code, generated documentation,
+      and conversions to other media types.
+
+      "Work" shall mean the work of authorship, whether in Source or
+      Object form, made available under the License, as indicated by a
+      copyright notice that is included in or attached to the work
+      (an example is provided in the Appendix below).
+
+      "Derivative Works" shall mean any work, whether in Source or Object
+      form, that is based on (or derived from) the Work and for which the
+      editorial revisions, annotations, elaborations, or other modifications
+      represent, as a whole, an original work of authorship. For the purposes
+      of this License, Derivative Works shall not include works that remain
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+      "Contribution" shall mean any work of authorship, including
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+   4. Redistribution. You may reproduce and distribute copies of the
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+          of the NOTICE file are for informational purposes only and
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+          notices within Derivative Works that You distribute, alongside
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+
+      You may add Your own copyright statement to Your modifications and
+      may provide additional or different license terms and conditions
+      for use, reproduction, or distribution of Your modifications, or
+      for any such Derivative Works as a whole, provided Your use,
+      reproduction, and distribution of the Work otherwise complies with
+      the conditions stated in this License.
+
+   5. Submission of Contributions. Unless You explicitly state otherwise,
+      any Contribution intentionally submitted for inclusion in the Work
+      by You to the Licensor shall be under the terms and conditions of
+      this License, without any additional terms or conditions.
+      Notwithstanding the above, nothing herein shall supersede or modify
+      the terms of any separate license agreement you may have executed
+      with Licensor regarding such Contributions.
+
+   6. Trademarks. This License does not grant permission to use the trade
+      names, trademarks, service marks, or product names of the Licensor,
+      except as required for reasonable and customary use in describing the
+      origin of the Work and reproducing the content of the NOTICE file.
+
+   7. Disclaimer of Warranty. Unless required by applicable law or
+      agreed to in writing, Licensor provides the Work (and each
+      Contributor provides its Contributions) on an "AS IS" BASIS,
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+      PARTICULAR PURPOSE. You are solely responsible for determining the
+      appropriateness of using or redistributing the Work and assume any
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+
+   8. Limitation of Liability. In no event and under no legal theory,
+      whether in tort (including negligence), contract, or otherwise,
+      unless required by applicable law (such as deliberate and grossly
+      negligent acts) or agreed to in writing, shall any Contributor be
+      liable to You for damages, including any direct, indirect, special,
+      incidental, or consequential damages of any character arising as a
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+      Work (including but not limited to damages for loss of goodwill,
+      work stoppage, computer failure or malfunction, or any and all
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+   9. Accepting Warranty or Additional Liability. While redistributing
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+      on Your own behalf and on Your sole responsibility, not on behalf
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+      of your accepting any such warranty or additional liability.
+
+   END OF TERMS AND CONDITIONS

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging-26.2.dist-info/licenses/LICENSE.BSD

@@ -0,0 +1,23 @@
+Copyright (c) Donald Stufft and individual contributors.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+    1. Redistributions of source code must retain the above copyright notice,
+       this list of conditions and the following disclaimer.
+
+    2. Redistributions in binary form must reproduce the above copyright
+       notice, this list of conditions and the following disclaimer in the
+       documentation and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/__init__.py

@@ -0,0 +1,15 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+__title__ = "packaging"
+__summary__ = "Core utilities for Python packages"
+__uri__ = "https://github.com/pypa/packaging"
+
+__version__ = "26.2"
+
+__author__ = "Donald Stufft and individual contributors"
+__email__ = "donald@stufft.io"
+
+__license__ = "BSD-2-Clause or Apache-2.0"
+__copyright__ = f"2014 {__author__}"

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/_elffile.py

@@ -0,0 +1,108 @@
+"""
+ELF file parser.
+
+This provides a class ``ELFFile`` that parses an ELF executable in a similar
+interface to ``ZipFile``. Only the read interface is implemented.
+
+ELF header: https://refspecs.linuxfoundation.org/elf/gabi4+/ch4.eheader.html
+"""
+
+from __future__ import annotations
+
+import enum
+import os
+import struct
+from typing import IO
+
+
+class ELFInvalid(ValueError):
+    pass
+
+
+class EIClass(enum.IntEnum):
+    C32 = 1
+    C64 = 2
+
+
+class EIData(enum.IntEnum):
+    Lsb = 1
+    Msb = 2
+
+
+class EMachine(enum.IntEnum):
+    I386 = 3
+    S390 = 22
+    Arm = 40
+    X8664 = 62
+    AArc64 = 183
+
+
+class ELFFile:
+    """
+    Representation of an ELF executable.
+    """
+
+    def __init__(self, f: IO[bytes]) -> None:
+        self._f = f
+
+        try:
+            ident = self._read("16B")
+        except struct.error as e:
+            raise ELFInvalid("unable to parse identification") from e
+        magic = bytes(ident[:4])
+        if magic != b"\x7fELF":
+            raise ELFInvalid(f"invalid magic: {magic!r}")
+
+        self.capacity = ident[4]  # Format for program header (bitness).
+        self.encoding = ident[5]  # Data structure encoding (endianness).
+
+        try:
+            # e_fmt: Format for program header.
+            # p_fmt: Format for section header.
+            # p_idx: Indexes to find p_type, p_offset, and p_filesz.
+            e_fmt, self._p_fmt, self._p_idx = {
+                (1, 1): ("<HHIIIIIHHH", "<IIIIIIII", (0, 1, 4)),  # 32-bit LSB.
+                (1, 2): (">HHIIIIIHHH", ">IIIIIIII", (0, 1, 4)),  # 32-bit MSB.
+                (2, 1): ("<HHIQQQIHHH", "<IIQQQQQQ", (0, 2, 5)),  # 64-bit LSB.
+                (2, 2): (">HHIQQQIHHH", ">IIQQQQQQ", (0, 2, 5)),  # 64-bit MSB.
+            }[(self.capacity, self.encoding)]
+        except KeyError as e:
+            raise ELFInvalid(
+                f"unrecognized capacity ({self.capacity}) or encoding ({self.encoding})"
+            ) from e
+
+        try:
+            (
+                _,
+                self.machine,  # Architecture type.
+                _,
+                _,
+                self._e_phoff,  # Offset of program header.
+                _,
+                self.flags,  # Processor-specific flags.
+                _,
+                self._e_phentsize,  # Size of section.
+                self._e_phnum,  # Number of sections.
+            ) = self._read(e_fmt)
+        except struct.error as e:
+            raise ELFInvalid("unable to parse machine and section information") from e
+
+    def _read(self, fmt: str) -> tuple[int, ...]:
+        return struct.unpack(fmt, self._f.read(struct.calcsize(fmt)))
+
+    @property
+    def interpreter(self) -> str | None:
+        """
+        The path recorded in the ``PT_INTERP`` section header.
+        """
+        for index in range(self._e_phnum):
+            self._f.seek(self._e_phoff + self._e_phentsize * index)
+            try:
+                data = self._read(self._p_fmt)
+            except struct.error:
+                continue
+            if data[self._p_idx[0]] != 3:  # Not PT_INTERP.
+                continue
+            self._f.seek(data[self._p_idx[1]])
+            return os.fsdecode(self._f.read(data[self._p_idx[2]])).strip("\0")
+        return None

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/_manylinux.py

@@ -0,0 +1,262 @@
+from __future__ import annotations
+
+import collections
+import contextlib
+import functools
+import os
+import re
+import sys
+import warnings
+from typing import Generator, Iterator, NamedTuple, Sequence
+
+from ._elffile import EIClass, EIData, ELFFile, EMachine
+
+EF_ARM_ABIMASK = 0xFF000000
+EF_ARM_ABI_VER5 = 0x05000000
+EF_ARM_ABI_FLOAT_HARD = 0x00000400
+
+_ALLOWED_ARCHS = {
+    "x86_64",
+    "aarch64",
+    "ppc64",
+    "ppc64le",
+    "s390x",
+    "loongarch64",
+    "riscv64",
+}
+
+
+# `os.PathLike` not a generic type until Python 3.9, so sticking with `str`
+# as the type for `path` until then.
+@contextlib.contextmanager
+def _parse_elf(path: str) -> Generator[ELFFile | None, None, None]:
+    try:
+        with open(path, "rb") as f:
+            yield ELFFile(f)
+    except (OSError, TypeError, ValueError):
+        yield None
+
+
+def _is_linux_armhf(executable: str) -> bool:
+    # hard-float ABI can be detected from the ELF header of the running
+    # process
+    # https://static.docs.arm.com/ihi0044/g/aaelf32.pdf
+    with _parse_elf(executable) as f:
+        return (
+            f is not None
+            and f.capacity == EIClass.C32
+            and f.encoding == EIData.Lsb
+            and f.machine == EMachine.Arm
+            and f.flags & EF_ARM_ABIMASK == EF_ARM_ABI_VER5
+            and f.flags & EF_ARM_ABI_FLOAT_HARD == EF_ARM_ABI_FLOAT_HARD
+        )
+
+
+def _is_linux_i686(executable: str) -> bool:
+    with _parse_elf(executable) as f:
+        return (
+            f is not None
+            and f.capacity == EIClass.C32
+            and f.encoding == EIData.Lsb
+            and f.machine == EMachine.I386
+        )
+
+
+def _have_compatible_abi(executable: str, archs: Sequence[str]) -> bool:
+    if "armv7l" in archs:
+        return _is_linux_armhf(executable)
+    if "i686" in archs:
+        return _is_linux_i686(executable)
+    return any(arch in _ALLOWED_ARCHS for arch in archs)
+
+
+# If glibc ever changes its major version, we need to know what the last
+# minor version was, so we can build the complete list of all versions.
+# For now, guess what the highest minor version might be, assume it will
+# be 50 for testing. Once this actually happens, update the dictionary
+# with the actual value.
+_LAST_GLIBC_MINOR: dict[int, int] = collections.defaultdict(lambda: 50)
+
+
+class _GLibCVersion(NamedTuple):
+    major: int
+    minor: int
+
+
+def _glibc_version_string_confstr() -> str | None:
+    """
+    Primary implementation of glibc_version_string using os.confstr.
+    """
+    # os.confstr is quite a bit faster than ctypes.DLL. It's also less likely
+    # to be broken or missing. This strategy is used in the standard library
+    # platform module.
+    # https://github.com/python/cpython/blob/fcf1d003bf4f0100c/Lib/platform.py#L175-L183
+    try:
+        # Should be a string like "glibc 2.17".
+        version_string: str | None = os.confstr("CS_GNU_LIBC_VERSION")
+        assert version_string is not None
+        _, version = version_string.rsplit()
+    except (AssertionError, AttributeError, OSError, ValueError):
+        # os.confstr() or CS_GNU_LIBC_VERSION not available (or a bad value)...
+        return None
+    return version
+
+
+def _glibc_version_string_ctypes() -> str | None:
+    """
+    Fallback implementation of glibc_version_string using ctypes.
+    """
+    try:
+        import ctypes  # noqa: PLC0415
+    except ImportError:
+        return None
+
+    # ctypes.CDLL(None) internally calls dlopen(NULL), and as the dlopen
+    # manpage says, "If filename is NULL, then the returned handle is for the
+    # main program". This way we can let the linker do the work to figure out
+    # which libc our process is actually using.
+    #
+    # We must also handle the special case where the executable is not a
+    # dynamically linked executable. This can occur when using musl libc,
+    # for example. In this situation, dlopen() will error, leading to an
+    # OSError. Interestingly, at least in the case of musl, there is no
+    # errno set on the OSError. The single string argument used to construct
+    # OSError comes from libc itself and is therefore not portable to
+    # hard code here. In any case, failure to call dlopen() means we
+    # can proceed, so we bail on our attempt.
+    try:
+        process_namespace = ctypes.CDLL(None)
+    except OSError:
+        return None
+
+    try:
+        gnu_get_libc_version = process_namespace.gnu_get_libc_version
+    except AttributeError:
+        # Symbol doesn't exist -> therefore, we are not linked to
+        # glibc.
+        return None
+
+    # Call gnu_get_libc_version, which returns a string like "2.5"
+    gnu_get_libc_version.restype = ctypes.c_char_p
+    version_str: str = gnu_get_libc_version()
+    # py2 / py3 compatibility:
+    if not isinstance(version_str, str):
+        version_str = version_str.decode("ascii")
+
+    return version_str
+
+
+def _glibc_version_string() -> str | None:
+    """Returns glibc version string, or None if not using glibc."""
+    return _glibc_version_string_confstr() or _glibc_version_string_ctypes()
+
+
+def _parse_glibc_version(version_str: str) -> _GLibCVersion:
+    """Parse glibc version.
+
+    We use a regexp instead of str.split because we want to discard any
+    random junk that might come after the minor version -- this might happen
+    in patched/forked versions of glibc (e.g. Linaro's version of glibc
+    uses version strings like "2.20-2014.11"). See gh-3588.
+    """
+    m = re.match(r"(?P<major>[0-9]+)\.(?P<minor>[0-9]+)", version_str)
+    if not m:
+        warnings.warn(
+            f"Expected glibc version with 2 components major.minor, got: {version_str}",
+            RuntimeWarning,
+            stacklevel=2,
+        )
+        return _GLibCVersion(-1, -1)
+    return _GLibCVersion(int(m.group("major")), int(m.group("minor")))
+
+
+@functools.lru_cache
+def _get_glibc_version() -> _GLibCVersion:
+    version_str = _glibc_version_string()
+    if version_str is None:
+        return _GLibCVersion(-1, -1)
+    return _parse_glibc_version(version_str)
+
+
+# From PEP 513, PEP 600
+def _is_compatible(arch: str, version: _GLibCVersion) -> bool:
+    sys_glibc = _get_glibc_version()
+    if sys_glibc < version:
+        return False
+    # Check for presence of _manylinux module.
+    try:
+        import _manylinux  # noqa: PLC0415
+    except ImportError:
+        return True
+    if hasattr(_manylinux, "manylinux_compatible"):
+        result = _manylinux.manylinux_compatible(version[0], version[1], arch)
+        if result is not None:
+            return bool(result)
+        return True
+    if version == _GLibCVersion(2, 5) and hasattr(_manylinux, "manylinux1_compatible"):
+        return bool(_manylinux.manylinux1_compatible)
+    if version == _GLibCVersion(2, 12) and hasattr(
+        _manylinux, "manylinux2010_compatible"
+    ):
+        return bool(_manylinux.manylinux2010_compatible)
+    if version == _GLibCVersion(2, 17) and hasattr(
+        _manylinux, "manylinux2014_compatible"
+    ):
+        return bool(_manylinux.manylinux2014_compatible)
+    return True
+
+
+_LEGACY_MANYLINUX_MAP: dict[_GLibCVersion, str] = {
+    # CentOS 7 w/ glibc 2.17 (PEP 599)
+    _GLibCVersion(2, 17): "manylinux2014",
+    # CentOS 6 w/ glibc 2.12 (PEP 571)
+    _GLibCVersion(2, 12): "manylinux2010",
+    # CentOS 5 w/ glibc 2.5 (PEP 513)
+    _GLibCVersion(2, 5): "manylinux1",
+}
+
+
+def platform_tags(archs: Sequence[str]) -> Iterator[str]:
+    """Generate manylinux tags compatible to the current platform.
+
+    :param archs: Sequence of compatible architectures.
+        The first one shall be the closest to the actual architecture and be the part of
+        platform tag after the ``linux_`` prefix, e.g. ``x86_64``.
+        The ``linux_`` prefix is assumed as a prerequisite for the current platform to
+        be manylinux-compatible.
+
+    :returns: An iterator of compatible manylinux tags.
+    """
+    if not _have_compatible_abi(sys.executable, archs):
+        return
+    # Oldest glibc to be supported regardless of architecture is (2, 17).
+    too_old_glibc2 = _GLibCVersion(2, 16)
+    if set(archs) & {"x86_64", "i686"}:
+        # On x86/i686 also oldest glibc to be supported is (2, 5).
+        too_old_glibc2 = _GLibCVersion(2, 4)
+    current_glibc = _GLibCVersion(*_get_glibc_version())
+    glibc_max_list = [current_glibc]
+    # We can assume compatibility across glibc major versions.
+    # https://sourceware.org/bugzilla/show_bug.cgi?id=24636
+    #
+    # Build a list of maximum glibc versions so that we can
+    # output the canonical list of all glibc from current_glibc
+    # down to too_old_glibc2, including all intermediary versions.
+    for glibc_major in range(current_glibc.major - 1, 1, -1):
+        glibc_minor = _LAST_GLIBC_MINOR[glibc_major]
+        glibc_max_list.append(_GLibCVersion(glibc_major, glibc_minor))
+    for arch in archs:
+        for glibc_max in glibc_max_list:
+            if glibc_max.major == too_old_glibc2.major:
+                min_minor = too_old_glibc2.minor
+            else:
+                # For other glibc major versions oldest supported is (x, 0).
+                min_minor = -1
+            for glibc_minor in range(glibc_max.minor, min_minor, -1):
+                glibc_version = _GLibCVersion(glibc_max.major, glibc_minor)
+                if _is_compatible(arch, glibc_version):
+                    yield "manylinux_{}_{}_{}".format(*glibc_version, arch)
+
+                    # Handle the legacy manylinux1, manylinux2010, manylinux2014 tags.
+                    if legacy_tag := _LEGACY_MANYLINUX_MAP.get(glibc_version):
+                        yield f"{legacy_tag}_{arch}"

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/_musllinux.py

@@ -0,0 +1,85 @@
+"""PEP 656 support.
+
+This module implements logic to detect if the currently running Python is
+linked against musl, and what musl version is used.
+"""
+
+from __future__ import annotations
+
+import functools
+import re
+import subprocess
+import sys
+from typing import Iterator, NamedTuple, Sequence
+
+from ._elffile import ELFFile
+
+
+class _MuslVersion(NamedTuple):
+    major: int
+    minor: int
+
+
+def _parse_musl_version(output: str) -> _MuslVersion | None:
+    lines = [n for n in (n.strip() for n in output.splitlines()) if n]
+    if len(lines) < 2 or lines[0][:4] != "musl":
+        return None
+    m = re.match(r"Version (\d+)\.(\d+)", lines[1])
+    if not m:
+        return None
+    return _MuslVersion(major=int(m.group(1)), minor=int(m.group(2)))
+
+
+@functools.lru_cache
+def _get_musl_version(executable: str) -> _MuslVersion | None:
+    """Detect currently-running musl runtime version.
+
+    This is done by checking the specified executable's dynamic linking
+    information, and invoking the loader to parse its output for a version
+    string. If the loader is musl, the output would be something like::
+
+        musl libc (x86_64)
+        Version 1.2.2
+        Dynamic Program Loader
+    """
+    try:
+        with open(executable, "rb") as f:
+            ld = ELFFile(f).interpreter
+    except (OSError, TypeError, ValueError):
+        return None
+    if ld is None or "musl" not in ld:
+        return None
+    proc = subprocess.run([ld], check=False, stderr=subprocess.PIPE, text=True)
+    return _parse_musl_version(proc.stderr)
+
+
+def platform_tags(archs: Sequence[str]) -> Iterator[str]:
+    """Generate musllinux tags compatible to the current platform.
+
+    :param archs: Sequence of compatible architectures.
+        The first one shall be the closest to the actual architecture and be the part of
+        platform tag after the ``linux_`` prefix, e.g. ``x86_64``.
+        The ``linux_`` prefix is assumed as a prerequisite for the current platform to
+        be musllinux-compatible.
+
+    :returns: An iterator of compatible musllinux tags.
+    """
+    sys_musl = _get_musl_version(sys.executable)
+    if sys_musl is None:  # Python not dynamically linked against musl.
+        return
+    for arch in archs:
+        for minor in range(sys_musl.minor, -1, -1):
+            yield f"musllinux_{sys_musl.major}_{minor}_{arch}"
+
+
+if __name__ == "__main__":  # pragma: no cover
+    import sysconfig
+
+    plat = sysconfig.get_platform()
+    assert plat.startswith("linux-"), "not linux"
+
+    print("plat:", plat)
+    print("musl:", _get_musl_version(sys.executable))
+    print("tags:", end=" ")
+    for t in platform_tags(re.sub(r"[.-]", "_", plat.split("-", 1)[-1])):
+        print(t, end="\n      ")

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/_parser.py

@@ -0,0 +1,393 @@
+"""Handwritten parser of dependency specifiers.
+
+The docstring for each __parse_* function contains EBNF-inspired grammar representing
+the implementation.
+"""
+
+from __future__ import annotations
+
+import ast
+from typing import List, Literal, NamedTuple, Sequence, Tuple, Union
+
+from ._tokenizer import DEFAULT_RULES, Tokenizer
+
+
+class Node:
+    __slots__ = ("value",)
+
+    def __init__(self, value: str) -> None:
+        self.value = value
+
+    def __str__(self) -> str:
+        return self.value
+
+    def __repr__(self) -> str:
+        return f"<{self.__class__.__name__}({self.value!r})>"
+
+    def serialize(self) -> str:
+        raise NotImplementedError
+
+    def __getstate__(self) -> str:
+        # Return just the value string for compactness and stability.
+        return self.value
+
+    def _restore_value(self, value: object) -> None:
+        if not isinstance(value, str):
+            raise TypeError(
+                f"Cannot restore {self.__class__.__name__} value from {value!r}"
+            )
+        self.value = value
+
+    def __setstate__(self, state: object) -> None:
+        if isinstance(state, str):
+            # New format (26.2+): just the value string.
+            self._restore_value(state)
+            return
+        if isinstance(state, tuple) and len(state) == 2:
+            # Old format (packaging <= 26.0, __slots__): (None, {slot: value}).
+            _, slot_dict = state
+            if isinstance(slot_dict, dict) and "value" in slot_dict:
+                self._restore_value(slot_dict["value"])
+                return
+        if isinstance(state, dict) and "value" in state:
+            # Old format (packaging <= 25.0, no __slots__): plain __dict__.
+            self._restore_value(state["value"])
+            return
+        raise TypeError(f"Cannot restore {self.__class__.__name__} from {state!r}")
+
+
+class Variable(Node):
+    __slots__ = ()
+
+    def serialize(self) -> str:
+        return str(self)
+
+
+class Value(Node):
+    __slots__ = ()
+
+    def serialize(self) -> str:
+        return f'"{self}"'
+
+
+class Op(Node):
+    __slots__ = ()
+
+    def serialize(self) -> str:
+        return str(self)
+
+
+MarkerLogical = Literal["and", "or"]
+MarkerVar = Union[Variable, Value]
+MarkerItem = Tuple[MarkerVar, Op, MarkerVar]
+MarkerAtom = Union[MarkerItem, Sequence["MarkerAtom"]]
+MarkerList = List[Union["MarkerList", MarkerAtom, MarkerLogical]]
+
+
+class ParsedRequirement(NamedTuple):
+    name: str
+    url: str
+    extras: list[str]
+    specifier: str
+    marker: MarkerList | None
+
+
+# --------------------------------------------------------------------------------------
+# Recursive descent parser for dependency specifier
+# --------------------------------------------------------------------------------------
+def parse_requirement(source: str) -> ParsedRequirement:
+    return _parse_requirement(Tokenizer(source, rules=DEFAULT_RULES))
+
+
+def _parse_requirement(tokenizer: Tokenizer) -> ParsedRequirement:
+    """
+    requirement = WS? IDENTIFIER WS? extras WS? requirement_details
+    """
+    tokenizer.consume("WS")
+
+    name_token = tokenizer.expect(
+        "IDENTIFIER", expected="package name at the start of dependency specifier"
+    )
+    name = name_token.text
+    tokenizer.consume("WS")
+
+    extras = _parse_extras(tokenizer)
+    tokenizer.consume("WS")
+
+    url, specifier, marker = _parse_requirement_details(tokenizer)
+    tokenizer.expect("END", expected="end of dependency specifier")
+
+    return ParsedRequirement(name, url, extras, specifier, marker)
+
+
+def _parse_requirement_details(
+    tokenizer: Tokenizer,
+) -> tuple[str, str, MarkerList | None]:
+    """
+    requirement_details = AT URL (WS requirement_marker?)?
+                        | specifier WS? (requirement_marker)?
+    """
+
+    specifier = ""
+    url = ""
+    marker = None
+
+    if tokenizer.check("AT"):
+        tokenizer.read()
+        tokenizer.consume("WS")
+
+        url_start = tokenizer.position
+        url = tokenizer.expect("URL", expected="URL after @").text
+        if tokenizer.check("END", peek=True):
+            return (url, specifier, marker)
+
+        tokenizer.expect("WS", expected="whitespace after URL")
+
+        # The input might end after whitespace.
+        if tokenizer.check("END", peek=True):
+            return (url, specifier, marker)
+
+        marker = _parse_requirement_marker(
+            tokenizer,
+            span_start=url_start,
+            expected="semicolon (after URL and whitespace)",
+        )
+    else:
+        specifier_start = tokenizer.position
+        specifier = _parse_specifier(tokenizer)
+        tokenizer.consume("WS")
+
+        if tokenizer.check("END", peek=True):
+            return (url, specifier, marker)
+
+        marker = _parse_requirement_marker(
+            tokenizer,
+            span_start=specifier_start,
+            expected=(
+                "comma (within version specifier), semicolon (after version specifier)"
+                if specifier
+                else "semicolon (after name with no version specifier)"
+            ),
+        )
+
+    return (url, specifier, marker)
+
+
+def _parse_requirement_marker(
+    tokenizer: Tokenizer, *, span_start: int, expected: str
+) -> MarkerList:
+    """
+    requirement_marker = SEMICOLON marker WS?
+    """
+
+    if not tokenizer.check("SEMICOLON"):
+        tokenizer.raise_syntax_error(
+            f"Expected {expected} or end",
+            span_start=span_start,
+            span_end=None,
+        )
+    tokenizer.read()
+
+    marker = _parse_marker(tokenizer)
+    tokenizer.consume("WS")
+
+    return marker
+
+
+def _parse_extras(tokenizer: Tokenizer) -> list[str]:
+    """
+    extras = (LEFT_BRACKET wsp* extras_list? wsp* RIGHT_BRACKET)?
+    """
+    if not tokenizer.check("LEFT_BRACKET", peek=True):
+        return []
+
+    with tokenizer.enclosing_tokens(
+        "LEFT_BRACKET",
+        "RIGHT_BRACKET",
+        around="extras",
+    ):
+        tokenizer.consume("WS")
+        extras = _parse_extras_list(tokenizer)
+        tokenizer.consume("WS")
+
+    return extras
+
+
+def _parse_extras_list(tokenizer: Tokenizer) -> list[str]:
+    """
+    extras_list = identifier (wsp* ',' wsp* identifier)*
+    """
+    extras: list[str] = []
+
+    if not tokenizer.check("IDENTIFIER"):
+        return extras
+
+    extras.append(tokenizer.read().text)
+
+    while True:
+        tokenizer.consume("WS")
+        if tokenizer.check("IDENTIFIER", peek=True):
+            tokenizer.raise_syntax_error("Expected comma between extra names")
+        elif not tokenizer.check("COMMA"):
+            break
+
+        tokenizer.read()
+        tokenizer.consume("WS")
+
+        extra_token = tokenizer.expect("IDENTIFIER", expected="extra name after comma")
+        extras.append(extra_token.text)
+
+    return extras
+
+
+def _parse_specifier(tokenizer: Tokenizer) -> str:
+    """
+    specifier = LEFT_PARENTHESIS WS? version_many WS? RIGHT_PARENTHESIS
+              | WS? version_many WS?
+    """
+    with tokenizer.enclosing_tokens(
+        "LEFT_PARENTHESIS",
+        "RIGHT_PARENTHESIS",
+        around="version specifier",
+    ):
+        tokenizer.consume("WS")
+        parsed_specifiers = _parse_version_many(tokenizer)
+        tokenizer.consume("WS")
+
+    return parsed_specifiers
+
+
+def _parse_version_many(tokenizer: Tokenizer) -> str:
+    """
+    version_many = (SPECIFIER (WS? COMMA WS? SPECIFIER)*)?
+    """
+    parsed_specifiers = ""
+    while tokenizer.check("SPECIFIER"):
+        span_start = tokenizer.position
+        parsed_specifiers += tokenizer.read().text
+        if tokenizer.check("VERSION_PREFIX_TRAIL", peek=True):
+            tokenizer.raise_syntax_error(
+                ".* suffix can only be used with `==` or `!=` operators",
+                span_start=span_start,
+                span_end=tokenizer.position + 1,
+            )
+        if tokenizer.check("VERSION_LOCAL_LABEL_TRAIL", peek=True):
+            tokenizer.raise_syntax_error(
+                "Local version label can only be used with `==` or `!=` operators",
+                span_start=span_start,
+                span_end=tokenizer.position,
+            )
+        tokenizer.consume("WS")
+        if not tokenizer.check("COMMA"):
+            break
+        parsed_specifiers += tokenizer.read().text
+        tokenizer.consume("WS")
+
+    return parsed_specifiers
+
+
+# --------------------------------------------------------------------------------------
+# Recursive descent parser for marker expression
+# --------------------------------------------------------------------------------------
+def parse_marker(source: str) -> MarkerList:
+    return _parse_full_marker(Tokenizer(source, rules=DEFAULT_RULES))
+
+
+def _parse_full_marker(tokenizer: Tokenizer) -> MarkerList:
+    retval = _parse_marker(tokenizer)
+    tokenizer.expect("END", expected="end of marker expression")
+    return retval
+
+
+def _parse_marker(tokenizer: Tokenizer) -> MarkerList:
+    """
+    marker = marker_atom (BOOLOP marker_atom)+
+    """
+    expression = [_parse_marker_atom(tokenizer)]
+    while tokenizer.check("BOOLOP"):
+        token = tokenizer.read()
+        expr_right = _parse_marker_atom(tokenizer)
+        expression.extend((token.text, expr_right))
+    return expression
+
+
+def _parse_marker_atom(tokenizer: Tokenizer) -> MarkerAtom:
+    """
+    marker_atom = WS? LEFT_PARENTHESIS WS? marker WS? RIGHT_PARENTHESIS WS?
+                | WS? marker_item WS?
+    """
+
+    tokenizer.consume("WS")
+    if tokenizer.check("LEFT_PARENTHESIS", peek=True):
+        with tokenizer.enclosing_tokens(
+            "LEFT_PARENTHESIS",
+            "RIGHT_PARENTHESIS",
+            around="marker expression",
+        ):
+            tokenizer.consume("WS")
+            marker: MarkerAtom = _parse_marker(tokenizer)
+            tokenizer.consume("WS")
+    else:
+        marker = _parse_marker_item(tokenizer)
+    tokenizer.consume("WS")
+    return marker
+
+
+def _parse_marker_item(tokenizer: Tokenizer) -> MarkerItem:
+    """
+    marker_item = WS? marker_var WS? marker_op WS? marker_var WS?
+    """
+    tokenizer.consume("WS")
+    marker_var_left = _parse_marker_var(tokenizer)
+    tokenizer.consume("WS")
+    marker_op = _parse_marker_op(tokenizer)
+    tokenizer.consume("WS")
+    marker_var_right = _parse_marker_var(tokenizer)
+    tokenizer.consume("WS")
+    return (marker_var_left, marker_op, marker_var_right)
+
+
+def _parse_marker_var(tokenizer: Tokenizer) -> MarkerVar:  # noqa: RET503
+    """
+    marker_var = VARIABLE | QUOTED_STRING
+    """
+    if tokenizer.check("VARIABLE"):
+        return process_env_var(tokenizer.read().text.replace(".", "_"))
+    elif tokenizer.check("QUOTED_STRING"):
+        return process_python_str(tokenizer.read().text)
+    else:
+        tokenizer.raise_syntax_error(
+            message="Expected a marker variable or quoted string"
+        )
+
+
+def process_env_var(env_var: str) -> Variable:
+    if env_var in ("platform_python_implementation", "python_implementation"):
+        return Variable("platform_python_implementation")
+    else:
+        return Variable(env_var)
+
+
+def process_python_str(python_str: str) -> Value:
+    value = ast.literal_eval(python_str)
+    return Value(str(value))
+
+
+def _parse_marker_op(tokenizer: Tokenizer) -> Op:
+    """
+    marker_op = IN | NOT IN | OP
+    """
+    if tokenizer.check("IN"):
+        tokenizer.read()
+        return Op("in")
+    elif tokenizer.check("NOT"):
+        tokenizer.read()
+        tokenizer.expect("WS", expected="whitespace after 'not'")
+        tokenizer.expect("IN", expected="'in' after 'not'")
+        return Op("not in")
+    elif tokenizer.check("OP"):
+        return Op(tokenizer.read().text)
+    else:
+        return tokenizer.raise_syntax_error(
+            "Expected marker operator, one of <=, <, !=, ==, >=, >, ~=, ===, in, not in"
+        )

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/_structures.py

@@ -0,0 +1,33 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+"""Backward-compatibility shim for unpickling Version objects serialized before
+packaging 26.1.
+
+Old pickles reference ``packaging._structures.InfinityType`` and
+``packaging._structures.NegativeInfinityType``.  This module provides minimal
+stand-in classes so that ``pickle.loads()`` can resolve those references.
+The deserialized objects are not used for comparisons — ``Version.__setstate__``
+discards the stale ``_key`` cache and recomputes it from the core version fields.
+"""
+
+from __future__ import annotations
+
+
+class InfinityType:
+    """Stand-in for the removed ``InfinityType`` used in old comparison keys."""
+
+    def __repr__(self) -> str:
+        return "Infinity"
+
+
+class NegativeInfinityType:
+    """Stand-in for the removed ``NegativeInfinityType`` used in old comparison keys."""
+
+    def __repr__(self) -> str:
+        return "-Infinity"
+
+
+Infinity = InfinityType()
+NegativeInfinity = NegativeInfinityType()

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/_tokenizer.py

@@ -0,0 +1,193 @@
+from __future__ import annotations
+
+import contextlib
+import re
+from dataclasses import dataclass
+from typing import Generator, Mapping, NoReturn
+
+from .specifiers import Specifier
+
+
+@dataclass
+class Token:
+    name: str
+    text: str
+    position: int
+
+
+class ParserSyntaxError(Exception):
+    """The provided source text could not be parsed correctly."""
+
+    def __init__(
+        self,
+        message: str,
+        *,
+        source: str,
+        span: tuple[int, int],
+    ) -> None:
+        self.span = span
+        self.message = message
+        self.source = source
+
+        super().__init__()
+
+    def __str__(self) -> str:
+        marker = " " * self.span[0] + "~" * (self.span[1] - self.span[0]) + "^"
+        return f"{self.message}\n    {self.source}\n    {marker}"
+
+
+DEFAULT_RULES: dict[str, re.Pattern[str]] = {
+    "LEFT_PARENTHESIS": re.compile(r"\("),
+    "RIGHT_PARENTHESIS": re.compile(r"\)"),
+    "LEFT_BRACKET": re.compile(r"\["),
+    "RIGHT_BRACKET": re.compile(r"\]"),
+    "SEMICOLON": re.compile(r";"),
+    "COMMA": re.compile(r","),
+    "QUOTED_STRING": re.compile(
+        r"""
+            (
+                ('[^']*')
+                |
+                ("[^"]*")
+            )
+        """,
+        re.VERBOSE,
+    ),
+    "OP": re.compile(r"(===|==|~=|!=|<=|>=|<|>)"),
+    "BOOLOP": re.compile(r"\b(or|and)\b"),
+    "IN": re.compile(r"\bin\b"),
+    "NOT": re.compile(r"\bnot\b"),
+    "VARIABLE": re.compile(
+        r"""
+            \b(
+                python_version
+                |python_full_version
+                |os[._]name
+                |sys[._]platform
+                |platform_(release|system)
+                |platform[._](version|machine|python_implementation)
+                |python_implementation
+                |implementation_(name|version)
+                |extras?
+                |dependency_groups
+            )\b
+        """,
+        re.VERBOSE,
+    ),
+    "SPECIFIER": re.compile(
+        Specifier._specifier_regex_str,
+        re.VERBOSE | re.IGNORECASE,
+    ),
+    "AT": re.compile(r"\@"),
+    "URL": re.compile(r"[^ \t]+"),
+    "IDENTIFIER": re.compile(r"\b[a-zA-Z0-9][a-zA-Z0-9._-]*\b"),
+    "VERSION_PREFIX_TRAIL": re.compile(r"\.\*"),
+    "VERSION_LOCAL_LABEL_TRAIL": re.compile(r"\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*"),
+    "WS": re.compile(r"[ \t]+"),
+    "END": re.compile(r"$"),
+}
+
+
+class Tokenizer:
+    """Context-sensitive token parsing.
+
+    Provides methods to examine the input stream to check whether the next token
+    matches.
+    """
+
+    def __init__(
+        self,
+        source: str,
+        *,
+        rules: Mapping[str, re.Pattern[str]],
+    ) -> None:
+        self.source = source
+        self.rules = rules
+        self.next_token: Token | None = None
+        self.position = 0
+
+    def consume(self, name: str) -> None:
+        """Move beyond provided token name, if at current position."""
+        if self.check(name):
+            self.read()
+
+    def check(self, name: str, *, peek: bool = False) -> bool:
+        """Check whether the next token has the provided name.
+
+        By default, if the check succeeds, the token *must* be read before
+        another check. If `peek` is set to `True`, the token is not loaded and
+        would need to be checked again.
+        """
+        assert self.next_token is None, (
+            f"Cannot check for {name!r}, already have {self.next_token!r}"
+        )
+        assert name in self.rules, f"Unknown token name: {name!r}"
+
+        expression = self.rules[name]
+
+        match = expression.match(self.source, self.position)
+        if match is None:
+            return False
+        if not peek:
+            self.next_token = Token(name, match[0], self.position)
+        return True
+
+    def expect(self, name: str, *, expected: str) -> Token:
+        """Expect a certain token name next, failing with a syntax error otherwise.
+
+        The token is *not* read.
+        """
+        if not self.check(name):
+            raise self.raise_syntax_error(f"Expected {expected}")
+        return self.read()
+
+    def read(self) -> Token:
+        """Consume the next token and return it."""
+        token = self.next_token
+        assert token is not None
+
+        self.position += len(token.text)
+        self.next_token = None
+
+        return token
+
+    def raise_syntax_error(
+        self,
+        message: str,
+        *,
+        span_start: int | None = None,
+        span_end: int | None = None,
+    ) -> NoReturn:
+        """Raise ParserSyntaxError at the given position."""
+        span = (
+            self.position if span_start is None else span_start,
+            self.position if span_end is None else span_end,
+        )
+        raise ParserSyntaxError(
+            message,
+            source=self.source,
+            span=span,
+        )
+
+    @contextlib.contextmanager
+    def enclosing_tokens(
+        self, open_token: str, close_token: str, *, around: str
+    ) -> Generator[None, None, None]:
+        if self.check(open_token):
+            open_position = self.position
+            self.read()
+        else:
+            open_position = None
+
+        yield
+
+        if open_position is None:
+            return
+
+        if not self.check(close_token):
+            self.raise_syntax_error(
+                f"Expected matching {close_token} for {open_token}, after {around}",
+                span_start=open_position,
+            )
+
+        self.read()

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/dependency_groups.py

@@ -0,0 +1,302 @@
+from __future__ import annotations
+
+import re
+from collections.abc import Mapping, Sequence
+
+from .errors import _ErrorCollector
+from .requirements import Requirement
+
+__all__ = [
+    "CyclicDependencyGroup",
+    "DependencyGroupInclude",
+    "DependencyGroupResolver",
+    "DuplicateGroupNames",
+    "InvalidDependencyGroupObject",
+    "resolve_dependency_groups",
+]
+
+
+def __dir__() -> list[str]:
+    return __all__
+
+
+# -----------
+# Error Types
+# -----------
+
+
+class DuplicateGroupNames(ValueError):
+    """
+    The same dependency groups were defined twice, with different non-normalized names.
+    """
+
+
+class CyclicDependencyGroup(ValueError):
+    """
+    The dependency group includes form a cycle.
+    """
+
+    def __init__(self, requested_group: str, group: str, include_group: str) -> None:
+        self.requested_group = requested_group
+        self.group = group
+        self.include_group = include_group
+
+        if include_group == group:
+            reason = f"{group} includes itself"
+        else:
+            reason = f"{include_group} -> {group}, {group} -> {include_group}"
+        super().__init__(
+            "Cyclic dependency group include while resolving "
+            f"{requested_group}: {reason}"
+        )
+
+
+# in the PEP 735 spec, the tables in dependency group lists were described as
+# "Dependency Object Specifiers", but the only defined type of object was a
+# "Dependency Group Include" -- hence the naming of this error as "Object"
+class InvalidDependencyGroupObject(ValueError):
+    """
+    A member of a dependency group was identified as a dict, but was not in a valid
+    format.
+    """
+
+
+# ------------------------
+# Object Model & Interface
+# ------------------------
+
+
+class DependencyGroupInclude:
+    __slots__ = ("include_group",)
+
+    def __init__(self, include_group: str) -> None:
+        """
+        Initialize a DependencyGroupInclude.
+
+        :param include_group: The name of the group referred to by this include.
+        """
+        self.include_group = include_group
+
+    def __repr__(self) -> str:
+        return f"{self.__class__.__name__}({self.include_group!r})"
+
+
+class DependencyGroupResolver:
+    """
+    A resolver for Dependency Group data.
+
+    This class handles caching, name normalization, cycle detection, and other
+    parsing requirements. There are only two public methods for exploring the data:
+    ``lookup()`` and ``resolve()``.
+
+    :param dependency_groups: A mapping, as provided via pyproject
+        ``[dependency-groups]``.
+    """
+
+    def __init__(
+        self,
+        dependency_groups: Mapping[str, Sequence[str | Mapping[str, str]]],
+    ) -> None:
+        errors = _ErrorCollector()
+
+        self.dependency_groups = _normalize_group_names(dependency_groups, errors)
+
+        # a map of group names to parsed data
+        self._parsed_groups: dict[
+            str, tuple[Requirement | DependencyGroupInclude, ...]
+        ] = {}
+        # a map of group names to their ancestors, used for cycle detection
+        self._include_graph_ancestors: dict[str, tuple[str, ...]] = {}
+        # a cache of completed resolutions to Requirement lists
+        self._resolve_cache: dict[str, tuple[Requirement, ...]] = {}
+
+        errors.finalize("[dependency-groups] data was invalid")
+
+    def lookup(self, group: str) -> tuple[Requirement | DependencyGroupInclude, ...]:
+        """
+        Lookup a group name, returning the parsed dependency data for that group.
+        This will not resolve includes.
+
+        :param group: the name of the group to lookup
+        """
+        group = _normalize_name(group)
+
+        with _ErrorCollector().on_exit(
+            f"[dependency-groups] data for {group!r} was malformed"
+        ) as errors:
+            return self._parse_group(group, errors)
+
+    def resolve(self, group: str) -> tuple[Requirement, ...]:
+        """
+        Resolve a dependency group to a list of requirements.
+
+        :param group: the name of the group to resolve
+        """
+        group = _normalize_name(group)
+
+        with _ErrorCollector().on_exit(
+            f"[dependency-groups] data for {group!r} was malformed"
+        ) as errors:
+            return self._resolve(group, group, errors)
+
+    def _resolve(
+        self, group: str, requested_group: str, errors: _ErrorCollector
+    ) -> tuple[Requirement, ...]:
+        """
+        This is a helper for cached resolution to strings. It preserves the name of the
+        group which the user initially requested in order to present a clearer error in
+        the event that a cycle is detected.
+
+        :param group: The normalized name of the group to resolve.
+        :param requested_group: The group which was used in the original, user-facing
+            request.
+        """
+        if group in self._resolve_cache:
+            return self._resolve_cache[group]
+
+        parsed = self._parse_group(group, errors)
+
+        resolved_group = []
+
+        for item in parsed:
+            if isinstance(item, Requirement):
+                resolved_group.append(item)
+            elif isinstance(item, DependencyGroupInclude):
+                include_group = _normalize_name(item.include_group)
+
+                # if a group is cyclic, record the error
+                # otherwise, follow the include_group reference
+                #
+                # this allows us to examine all includes in a group, even in the
+                # presence of errors
+                if include_group in self._include_graph_ancestors.get(group, ()):
+                    errors.error(
+                        CyclicDependencyGroup(
+                            requested_group, group, item.include_group
+                        )
+                    )
+                else:
+                    self._include_graph_ancestors[include_group] = (
+                        *self._include_graph_ancestors.get(group, ()),
+                        group,
+                    )
+                    resolved_group.extend(
+                        self._resolve(include_group, requested_group, errors)
+                    )
+            else:  # pragma: no cover
+                raise NotImplementedError(
+                    f"Invalid dependency group item after parse: {item}"
+                )
+
+        # in the event that errors were detected, present the group as empty and do not
+        # cache the result
+        # this ensures that repeated access to a cyclic group will raise multiple errors
+        if errors.errors:
+            return ()
+
+        self._resolve_cache[group] = tuple(resolved_group)
+        return self._resolve_cache[group]
+
+    def _parse_group(
+        self, group: str, errors: _ErrorCollector
+    ) -> tuple[Requirement | DependencyGroupInclude, ...]:
+        # short circuit -- never do the work twice
+        if group in self._parsed_groups:
+            return self._parsed_groups[group]
+
+        if group not in self.dependency_groups:
+            errors.error(LookupError(f"Dependency group '{group}' not found"))
+            return ()
+
+        raw_group = self.dependency_groups[group]
+        if isinstance(raw_group, str):
+            errors.error(
+                TypeError(
+                    f"Dependency group {group!r} contained a string rather than a list."
+                )
+            )
+            return ()
+
+        if not isinstance(raw_group, Sequence):
+            errors.error(
+                TypeError(f"Dependency group {group!r} is not a sequence type.")
+            )
+            return ()
+
+        elements: list[Requirement | DependencyGroupInclude] = []
+        for item in raw_group:
+            if isinstance(item, str):
+                # packaging.requirements.Requirement parsing ensures that this is a
+                # valid PEP 508 Dependency Specifier
+                # raises InvalidRequirement on failure
+                elements.append(Requirement(item))
+            elif isinstance(item, Mapping):
+                if tuple(item.keys()) != ("include-group",):
+                    errors.error(
+                        InvalidDependencyGroupObject(
+                            f"Invalid dependency group item: {item!r}"
+                        )
+                    )
+                else:
+                    include_group = item["include-group"]
+                    elements.append(DependencyGroupInclude(include_group=include_group))
+            else:
+                errors.error(TypeError(f"Invalid dependency group item: {item!r}"))
+
+        self._parsed_groups[group] = tuple(elements)
+        return self._parsed_groups[group]
+
+
+# --------------------
+# Functional Interface
+# --------------------
+
+
+def resolve_dependency_groups(
+    dependency_groups: Mapping[str, Sequence[str | Mapping[str, str]]], /, *groups: str
+) -> tuple[str, ...]:
+    """
+    Resolve a dependency group to a tuple of requirements, as strings.
+
+    :param dependency_groups: the parsed contents of the ``[dependency-groups]`` table
+        from ``pyproject.toml``
+    :param groups: the name of the group(s) to resolve
+    """
+    resolver = DependencyGroupResolver(dependency_groups)
+    return tuple(str(r) for group in groups for r in resolver.resolve(group))
+
+
+# ----------------
+# internal helpers
+# ----------------
+
+
+_NORMALIZE_PATTERN = re.compile(r"[-_.]+")
+
+
+def _normalize_name(name: str) -> str:
+    return _NORMALIZE_PATTERN.sub("-", name).lower()
+
+
+def _normalize_group_names(
+    dependency_groups: Mapping[str, Sequence[str | Mapping[str, str]]],
+    errors: _ErrorCollector,
+) -> dict[str, Sequence[str | Mapping[str, str]]]:
+    original_names: dict[str, list[str]] = {}
+    normalized_groups: dict[str, Sequence[str | Mapping[str, str]]] = {}
+
+    for group_name, value in dependency_groups.items():
+        normed_group_name = _normalize_name(group_name)
+        original_names.setdefault(normed_group_name, []).append(group_name)
+        normalized_groups[normed_group_name] = value
+
+    for normed_name, names in original_names.items():
+        if len(names) > 1:
+            errors.error(
+                DuplicateGroupNames(
+                    "Duplicate dependency group names: "
+                    f"{normed_name} ({', '.join(names)})"
+                )
+            )
+
+    return normalized_groups

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/direct_url.py

@@ -0,0 +1,325 @@
+from __future__ import annotations
+
+import dataclasses
+import re
+import urllib.parse
+from collections.abc import Mapping
+from typing import TYPE_CHECKING, Any, Protocol, TypeVar
+
+if TYPE_CHECKING:  # pragma: no cover
+    import sys
+    from collections.abc import Collection
+
+    if sys.version_info >= (3, 11):
+        from typing import Self
+    else:
+        from typing_extensions import Self
+
+__all__ = [
+    "ArchiveInfo",
+    "DirInfo",
+    "DirectUrl",
+    "DirectUrlValidationError",
+    "VcsInfo",
+]
+
+
+def __dir__() -> list[str]:
+    return __all__
+
+
+_T = TypeVar("_T")
+
+
+class _FromMappingProtocol(Protocol):  # pragma: no cover
+    @classmethod
+    def _from_dict(cls, d: Mapping[str, Any]) -> Self: ...
+
+
+_FromMappingProtocolT = TypeVar("_FromMappingProtocolT", bound=_FromMappingProtocol)
+
+
+def _json_dict_factory(data: list[tuple[str, Any]]) -> dict[str, Any]:
+    return {key: value for key, value in data if value is not None}
+
+
+def _get(d: Mapping[str, Any], expected_type: type[_T], key: str) -> _T | None:
+    """Get a value from the dictionary and verify it's the expected type."""
+    if (value := d.get(key)) is None:
+        return None
+    if not isinstance(value, expected_type):
+        raise DirectUrlValidationError(
+            f"Unexpected type {type(value).__name__} "
+            f"(expected {expected_type.__name__})",
+            context=key,
+        )
+    return value
+
+
+def _get_required(d: Mapping[str, Any], expected_type: type[_T], key: str) -> _T:
+    """Get a required value from the dictionary and verify it's the expected type."""
+    if (value := _get(d, expected_type, key)) is None:
+        raise _DirectUrlRequiredKeyError(key)
+    return value
+
+
+def _get_object(
+    d: Mapping[str, Any], target_type: type[_FromMappingProtocolT], key: str
+) -> _FromMappingProtocolT | None:
+    """Get a dictionary value from the dictionary and convert it to a dataclass."""
+    if (value := _get(d, Mapping, key)) is None:  # type: ignore[type-abstract]
+        return None
+    try:
+        return target_type._from_dict(value)
+    except Exception as e:
+        raise DirectUrlValidationError(e, context=key) from e
+
+
+_PEP610_USER_PASS_ENV_VARS_REGEX = re.compile(
+    r"^\$\{[A-Za-z0-9-_]+\}(:\$\{[A-Za-z0-9-_]+\})?$"
+)
+
+
+def _strip_auth_from_netloc(netloc: str, safe_user_passwords: Collection[str]) -> str:
+    if "@" not in netloc:
+        return netloc
+    user_pass, netloc_no_user_pass = netloc.split("@", 1)
+    if user_pass in safe_user_passwords:
+        return netloc
+    if _PEP610_USER_PASS_ENV_VARS_REGEX.match(user_pass):
+        return netloc
+    return netloc_no_user_pass
+
+
+def _strip_url(url: str, safe_user_passwords: Collection[str]) -> str:
+    """url with user:password part removed unless it is formed with
+    environment variables as specified in PEP 610, or it is a safe user:password
+    such as `git`.
+    """
+    parsed_url = urllib.parse.urlsplit(url)
+    netloc = _strip_auth_from_netloc(parsed_url.netloc, safe_user_passwords)
+    return urllib.parse.urlunsplit(
+        (
+            parsed_url.scheme,
+            netloc,
+            parsed_url.path,
+            parsed_url.query,
+            parsed_url.fragment,
+        )
+    )
+
+
+class DirectUrlValidationError(Exception):
+    """Raised when when input data is not spec-compliant."""
+
+    context: str | None = None
+    message: str
+
+    def __init__(
+        self,
+        cause: str | Exception,
+        *,
+        context: str | None = None,
+    ) -> None:
+        if isinstance(cause, DirectUrlValidationError):
+            if cause.context:
+                self.context = (
+                    f"{context}.{cause.context}" if context else cause.context
+                )
+            else:
+                self.context = context  # pragma: no cover
+            self.message = cause.message
+        else:
+            self.context = context
+            self.message = str(cause)
+
+    def __str__(self) -> str:
+        if self.context:
+            return f"{self.message} in {self.context!r}"
+        return self.message
+
+
+class _DirectUrlRequiredKeyError(DirectUrlValidationError):
+    def __init__(self, key: str) -> None:
+        super().__init__("Missing required value", context=key)
+
+
+@dataclasses.dataclass(frozen=True, init=False)
+class VcsInfo:
+    vcs: str
+    commit_id: str
+    requested_revision: str | None = None
+
+    def __init__(
+        self,
+        *,
+        vcs: str,
+        commit_id: str,
+        requested_revision: str | None = None,
+    ) -> None:
+        object.__setattr__(self, "vcs", vcs)
+        object.__setattr__(self, "commit_id", commit_id)
+        object.__setattr__(self, "requested_revision", requested_revision)
+
+    @classmethod
+    def _from_dict(cls, d: Mapping[str, Any]) -> Self:
+        # We can't validate vcs value because is not closed.
+        return cls(
+            vcs=_get_required(d, str, "vcs"),
+            requested_revision=_get(d, str, "requested_revision"),
+            commit_id=_get_required(d, str, "commit_id"),
+        )
+
+
+@dataclasses.dataclass(frozen=True, init=False)
+class ArchiveInfo:
+    hashes: Mapping[str, str] | None = None
+
+    def __init__(
+        self,
+        *,
+        hashes: Mapping[str, str] | None = None,
+    ) -> None:
+        object.__setattr__(self, "hashes", hashes)
+
+    @classmethod
+    def _from_dict(cls, d: Mapping[str, Any]) -> Self:
+        hashes = _get(d, Mapping, "hashes")  # type: ignore[type-abstract]
+        if hashes is not None and not all(isinstance(h, str) for h in hashes.values()):
+            raise DirectUrlValidationError(
+                "Hash values must be strings", context="hashes"
+            )
+        legacy_hash = _get(d, str, "hash")
+        if legacy_hash is not None:
+            if "=" not in legacy_hash:
+                raise DirectUrlValidationError(
+                    "Invalid hash format (expected '<algorithm>=<hash>')",
+                    context="hash",
+                )
+            hash_algorithm, hash_value = legacy_hash.split("=", 1)
+            if hashes is None:
+                # if `hashes` are not present, we can derive it from the legacy `hash`
+                hashes = {hash_algorithm: hash_value}
+            else:
+                # if `hashes` are present, the legacy `hash` must match one of them
+                if hash_algorithm not in hashes:
+                    raise DirectUrlValidationError(
+                        f"Algorithm {hash_algorithm!r} used in hash field "
+                        f"is not present in hashes field",
+                        context="hashes",
+                    )
+                if hashes[hash_algorithm] != hash_value:
+                    raise DirectUrlValidationError(
+                        f"Algorithm {hash_algorithm!r} used in hash field "
+                        f"has different value in hashes field",
+                        context="hash",
+                    )
+        return cls(hashes=hashes)
+
+
+@dataclasses.dataclass(frozen=True, init=False)
+class DirInfo:
+    editable: bool | None = None
+
+    def __init__(
+        self,
+        *,
+        editable: bool | None = None,
+    ) -> None:
+        object.__setattr__(self, "editable", editable)
+
+    @classmethod
+    def _from_dict(cls, d: Mapping[str, Any]) -> Self:
+        return cls(
+            editable=_get(d, bool, "editable"),
+        )
+
+
+@dataclasses.dataclass(frozen=True, init=False)
+class DirectUrl:
+    """A class representing a direct URL."""
+
+    url: str
+    archive_info: ArchiveInfo | None = None
+    vcs_info: VcsInfo | None = None
+    dir_info: DirInfo | None = None
+    subdirectory: str | None = None  # XXX Path or str?
+
+    def __init__(
+        self,
+        *,
+        url: str,
+        archive_info: ArchiveInfo | None = None,
+        vcs_info: VcsInfo | None = None,
+        dir_info: DirInfo | None = None,
+        subdirectory: str | None = None,
+    ) -> None:
+        object.__setattr__(self, "url", url)
+        object.__setattr__(self, "archive_info", archive_info)
+        object.__setattr__(self, "vcs_info", vcs_info)
+        object.__setattr__(self, "dir_info", dir_info)
+        object.__setattr__(self, "subdirectory", subdirectory)
+
+    @classmethod
+    def _from_dict(cls, d: Mapping[str, Any]) -> Self:
+        direct_url = cls(
+            url=_get_required(d, str, "url"),
+            archive_info=_get_object(d, ArchiveInfo, "archive_info"),
+            vcs_info=_get_object(d, VcsInfo, "vcs_info"),
+            dir_info=_get_object(d, DirInfo, "dir_info"),
+            subdirectory=_get(d, str, "subdirectory"),
+        )
+        if (
+            bool(direct_url.vcs_info)
+            + bool(direct_url.archive_info)
+            + bool(direct_url.dir_info)
+        ) != 1:
+            raise DirectUrlValidationError(
+                "Exactly one of vcs_info, archive_info, dir_info must be present"
+            )
+        if direct_url.dir_info is not None and not direct_url.url.startswith("file://"):
+            raise DirectUrlValidationError(
+                "URL scheme must be file:// when dir_info is present",
+                context="url",
+            )
+        # XXX subdirectory must be relative, can we, should we validate that here?
+        return direct_url
+
+    @classmethod
+    def from_dict(cls, d: Mapping[str, Any], /) -> Self:
+        """Create and validate a DirectUrl instance from a JSON dictionary."""
+        return cls._from_dict(d)
+
+    def to_dict(
+        self,
+        *,
+        generate_legacy_hash: bool = False,
+        strip_user_password: bool = True,
+        safe_user_passwords: Collection[str] = ("git",),
+    ) -> Mapping[str, Any]:
+        """Convert the DirectUrl instance to a JSON dictionary.
+
+        :param generate_legacy_hash: If True, include a legacy `hash` field in
+            `archive_info` for backward compatibility with tools that don't
+            support the `hashes` field.
+        :param strip_user_password: If True, strip user:password from the URL
+            unless it is formed with environment variables as specified in PEP
+            610, or it is a safe user:password such as `git`.
+        :param safe_user_passwords: A collection of user:password strings that
+            should not be stripped from the URL even if `strip_user_password` is
+            True.
+        """
+        res = dataclasses.asdict(self, dict_factory=_json_dict_factory)
+        if generate_legacy_hash and self.archive_info and self.archive_info.hashes:
+            hash_algorithm, hash_value = next(iter(self.archive_info.hashes.items()))
+            res["archive_info"]["hash"] = f"{hash_algorithm}={hash_value}"
+        if strip_user_password:
+            res["url"] = _strip_url(self.url, safe_user_passwords)
+        return res
+
+    def validate(self) -> None:
+        """Validate the DirectUrl instance against the specification.
+
+        Raises :class:`DirectUrlValidationError` if invalid.
+        """
+        self.from_dict(self.to_dict())

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/errors.py

@@ -0,0 +1,94 @@
+from __future__ import annotations
+
+import contextlib
+import dataclasses
+import sys
+import typing
+
+__all__ = ["ExceptionGroup"]
+
+
+def __dir__() -> list[str]:
+    return __all__
+
+
+if sys.version_info >= (3, 11):  # pragma: no cover
+    from builtins import ExceptionGroup
+else:  # pragma: no cover
+
+    class ExceptionGroup(Exception):
+        """A minimal implementation of :external:exc:`ExceptionGroup` from Python 3.11.
+
+        If :external:exc:`ExceptionGroup` is already defined by Python itself,
+        that version is used instead.
+        """
+
+        message: str
+        exceptions: list[Exception]
+
+        def __init__(self, message: str, exceptions: list[Exception]) -> None:
+            self.message = message
+            self.exceptions = exceptions
+
+        def __repr__(self) -> str:
+            return f"{self.__class__.__name__}({self.message!r}, {self.exceptions!r})"
+
+
+@dataclasses.dataclass
+class _ErrorCollector:
+    """
+    Collect errors into ExceptionGroups.
+
+    Used like this:
+
+        collector = _ErrorCollector()
+        # Add a single exception
+        collector.error(ValueError("one"))
+
+        # Supports nesting, including combining ExceptionGroups
+        with collector.collect():
+            raise ValueError("two")
+        collector.finalize("Found some errors")
+
+    Since making a collector and then calling finalize later is a common pattern,
+    a convenience method ``on_exit`` is provided.
+    """
+
+    errors: list[Exception] = dataclasses.field(default_factory=list, init=False)
+
+    def finalize(self, msg: str) -> None:
+        """Raise a group exception if there are any errors."""
+        if self.errors:
+            raise ExceptionGroup(msg, self.errors)
+
+    @contextlib.contextmanager
+    def on_exit(self, msg: str) -> typing.Generator[_ErrorCollector, None, None]:
+        """
+        Calls finalize if no uncollected errors were present.
+
+        Uncollected errors are raised normally.
+        """
+        yield self
+        self.finalize(msg)
+
+    @contextlib.contextmanager
+    def collect(self, *err_cls: type[Exception]) -> typing.Generator[None, None, None]:
+        """
+        Context manager to collect errors into the error list.
+
+        Must be inside loops, as only one error can be collected at a time.
+        """
+        error_classes = err_cls or (Exception,)
+        try:
+            yield
+        except ExceptionGroup as error:
+            self.errors.extend(error.exceptions)
+        except error_classes as error:
+            self.errors.append(error)
+
+    def error(
+        self,
+        error: Exception,
+    ) -> None:
+        """Add an error to the list."""
+        self.errors.append(error)

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/licenses/__init__.py

@@ -0,0 +1,186 @@
+#######################################################################################
+#
+# Adapted from:
+#  https://github.com/pypa/hatch/blob/5352e44/backend/src/hatchling/licenses/parse.py
+#
+# MIT License
+#
+# Copyright (c) 2017-present Ofek Lev <oss@ofek.dev>
+#
+# 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.
+#
+#
+# With additional allowance of arbitrary `LicenseRef-` identifiers, not just
+# `LicenseRef-Public-Domain` and `LicenseRef-Proprietary`.
+#
+#######################################################################################
+from __future__ import annotations
+
+import re
+from typing import NewType, cast
+
+from ._spdx import EXCEPTIONS, LICENSES
+
+__all__ = [
+    "InvalidLicenseExpression",
+    "NormalizedLicenseExpression",
+    "canonicalize_license_expression",
+]
+
+
+# Simple __dir__ implementation since there are no public submodules
+def __dir__() -> list[str]:
+    return __all__
+
+
+license_ref_allowed = re.compile("^[A-Za-z0-9.-]*$")
+
+NormalizedLicenseExpression = NewType("NormalizedLicenseExpression", str)
+"""
+A :class:`typing.NewType` of :class:`str`, representing a normalized
+License-Expression.
+"""
+
+
+class InvalidLicenseExpression(ValueError):
+    """Raised when a license-expression string is invalid
+
+    >>> from packaging.licenses import canonicalize_license_expression
+    >>> canonicalize_license_expression("invalid")
+    Traceback (most recent call last):
+        ...
+    packaging.licenses.InvalidLicenseExpression: Invalid license expression: 'invalid'
+    """
+
+
+def canonicalize_license_expression(
+    raw_license_expression: str,
+) -> NormalizedLicenseExpression:
+    """
+    This function takes a valid License-Expression, and returns the normalized
+    form of it.
+
+    The return type is typed as :class:`NormalizedLicenseExpression`. This
+    allows type checkers to help require that a string has passed through this
+    function before use.
+
+    :param str raw_license_expression: The License-Expression to canonicalize.
+    :raises InvalidLicenseExpression: If the License-Expression is invalid due to an
+        invalid/unknown license identifier or invalid syntax.
+
+    .. doctest::
+
+        >>> from packaging.licenses import canonicalize_license_expression
+        >>> canonicalize_license_expression("mit")
+        'MIT'
+        >>> canonicalize_license_expression("mit and (apache-2.0 or bsd-2-clause)")
+        'MIT AND (Apache-2.0 OR BSD-2-Clause)'
+        >>> canonicalize_license_expression("(mit")
+        Traceback (most recent call last):
+          ...
+        InvalidLicenseExpression: Invalid license expression: '(mit'
+        >>> canonicalize_license_expression("Use-it-after-midnight")
+        Traceback (most recent call last):
+          ...
+        InvalidLicenseExpression: Unknown license: 'Use-it-after-midnight'
+    """
+    if not raw_license_expression:
+        message = f"Invalid license expression: {raw_license_expression!r}"
+        raise InvalidLicenseExpression(message)
+
+    # Pad any parentheses so tokenization can be achieved by merely splitting on
+    # whitespace.
+    license_expression = raw_license_expression.replace("(", " ( ").replace(")", " ) ")
+    licenseref_prefix = "LicenseRef-"
+    license_refs = {
+        ref.lower(): "LicenseRef-" + ref[len(licenseref_prefix) :]
+        for ref in license_expression.split()
+        if ref.lower().startswith(licenseref_prefix.lower())
+    }
+
+    # Normalize to lower case so we can look up licenses/exceptions
+    # and so boolean operators are Python-compatible.
+    license_expression = license_expression.lower()
+
+    tokens = license_expression.split()
+
+    # Rather than implementing a parenthesis/boolean logic parser, create an
+    # expression that Python can parse. Everything that is not involved with the
+    # grammar itself is replaced with the placeholder `False` and the resultant
+    # expression should become a valid Python expression.
+    python_tokens = []
+    for token in tokens:
+        if token not in {"or", "and", "with", "(", ")"}:
+            python_tokens.append("False")
+        elif token == "with":
+            python_tokens.append("or")
+        elif (
+            token == "("
+            and python_tokens
+            and python_tokens[-1] not in {"or", "and", "("}
+        ) or (token == ")" and python_tokens and python_tokens[-1] == "("):
+            message = f"Invalid license expression: {raw_license_expression!r}"
+            raise InvalidLicenseExpression(message)
+        else:
+            python_tokens.append(token)
+
+    python_expression = " ".join(python_tokens)
+    try:
+        compile(python_expression, "", "eval")
+    except SyntaxError:
+        message = f"Invalid license expression: {raw_license_expression!r}"
+        raise InvalidLicenseExpression(message) from None
+
+    # Take a final pass to check for unknown licenses/exceptions.
+    normalized_tokens = []
+    for token in tokens:
+        if token in {"or", "and", "with", "(", ")"}:
+            normalized_tokens.append(token.upper())
+            continue
+
+        if normalized_tokens and normalized_tokens[-1] == "WITH":
+            if token not in EXCEPTIONS:
+                message = f"Unknown license exception: {token!r}"
+                raise InvalidLicenseExpression(message)
+
+            normalized_tokens.append(EXCEPTIONS[token]["id"])
+        else:
+            if token.endswith("+"):
+                final_token = token[:-1]
+                suffix = "+"
+            else:
+                final_token = token
+                suffix = ""
+
+            if final_token.startswith("licenseref-"):
+                if not license_ref_allowed.match(final_token):
+                    message = f"Invalid licenseref: {final_token!r}"
+                    raise InvalidLicenseExpression(message)
+                normalized_tokens.append(license_refs[final_token] + suffix)
+            else:
+                if final_token not in LICENSES:
+                    message = f"Unknown license: {final_token!r}"
+                    raise InvalidLicenseExpression(message)
+                normalized_tokens.append(LICENSES[final_token]["id"] + suffix)
+
+    normalized_expression = " ".join(normalized_tokens)
+
+    return cast(
+        "NormalizedLicenseExpression",
+        normalized_expression.replace("( ", "(").replace(" )", ")"),
+    )

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/licenses/_spdx.py

@@ -0,0 +1,799 @@
+
+from __future__ import annotations
+
+from typing import TypedDict
+
+class SPDXLicense(TypedDict):
+    id: str
+    deprecated: bool
+
+class SPDXException(TypedDict):
+    id: str
+    deprecated: bool
+
+
+VERSION = '3.27.0'
+
+LICENSES: dict[str, SPDXLicense] = {
+    '0bsd': {'id': '0BSD', 'deprecated': False},
+    '3d-slicer-1.0': {'id': '3D-Slicer-1.0', 'deprecated': False},
+    'aal': {'id': 'AAL', 'deprecated': False},
+    'abstyles': {'id': 'Abstyles', 'deprecated': False},
+    'adacore-doc': {'id': 'AdaCore-doc', 'deprecated': False},
+    'adobe-2006': {'id': 'Adobe-2006', 'deprecated': False},
+    'adobe-display-postscript': {'id': 'Adobe-Display-PostScript', 'deprecated': False},
+    'adobe-glyph': {'id': 'Adobe-Glyph', 'deprecated': False},
+    'adobe-utopia': {'id': 'Adobe-Utopia', 'deprecated': False},
+    'adsl': {'id': 'ADSL', 'deprecated': False},
+    'afl-1.1': {'id': 'AFL-1.1', 'deprecated': False},
+    'afl-1.2': {'id': 'AFL-1.2', 'deprecated': False},
+    'afl-2.0': {'id': 'AFL-2.0', 'deprecated': False},
+    'afl-2.1': {'id': 'AFL-2.1', 'deprecated': False},
+    'afl-3.0': {'id': 'AFL-3.0', 'deprecated': False},
+    'afmparse': {'id': 'Afmparse', 'deprecated': False},
+    'agpl-1.0': {'id': 'AGPL-1.0', 'deprecated': True},
+    'agpl-1.0-only': {'id': 'AGPL-1.0-only', 'deprecated': False},
+    'agpl-1.0-or-later': {'id': 'AGPL-1.0-or-later', 'deprecated': False},
+    'agpl-3.0': {'id': 'AGPL-3.0', 'deprecated': True},
+    'agpl-3.0-only': {'id': 'AGPL-3.0-only', 'deprecated': False},
+    'agpl-3.0-or-later': {'id': 'AGPL-3.0-or-later', 'deprecated': False},
+    'aladdin': {'id': 'Aladdin', 'deprecated': False},
+    'amd-newlib': {'id': 'AMD-newlib', 'deprecated': False},
+    'amdplpa': {'id': 'AMDPLPA', 'deprecated': False},
+    'aml': {'id': 'AML', 'deprecated': False},
+    'aml-glslang': {'id': 'AML-glslang', 'deprecated': False},
+    'ampas': {'id': 'AMPAS', 'deprecated': False},
+    'antlr-pd': {'id': 'ANTLR-PD', 'deprecated': False},
+    'antlr-pd-fallback': {'id': 'ANTLR-PD-fallback', 'deprecated': False},
+    'any-osi': {'id': 'any-OSI', 'deprecated': False},
+    'any-osi-perl-modules': {'id': 'any-OSI-perl-modules', 'deprecated': False},
+    'apache-1.0': {'id': 'Apache-1.0', 'deprecated': False},
+    'apache-1.1': {'id': 'Apache-1.1', 'deprecated': False},
+    'apache-2.0': {'id': 'Apache-2.0', 'deprecated': False},
+    'apafml': {'id': 'APAFML', 'deprecated': False},
+    'apl-1.0': {'id': 'APL-1.0', 'deprecated': False},
+    'app-s2p': {'id': 'App-s2p', 'deprecated': False},
+    'apsl-1.0': {'id': 'APSL-1.0', 'deprecated': False},
+    'apsl-1.1': {'id': 'APSL-1.1', 'deprecated': False},
+    'apsl-1.2': {'id': 'APSL-1.2', 'deprecated': False},
+    'apsl-2.0': {'id': 'APSL-2.0', 'deprecated': False},
+    'arphic-1999': {'id': 'Arphic-1999', 'deprecated': False},
+    'artistic-1.0': {'id': 'Artistic-1.0', 'deprecated': False},
+    'artistic-1.0-cl8': {'id': 'Artistic-1.0-cl8', 'deprecated': False},
+    'artistic-1.0-perl': {'id': 'Artistic-1.0-Perl', 'deprecated': False},
+    'artistic-2.0': {'id': 'Artistic-2.0', 'deprecated': False},
+    'artistic-dist': {'id': 'Artistic-dist', 'deprecated': False},
+    'aspell-ru': {'id': 'Aspell-RU', 'deprecated': False},
+    'aswf-digital-assets-1.0': {'id': 'ASWF-Digital-Assets-1.0', 'deprecated': False},
+    'aswf-digital-assets-1.1': {'id': 'ASWF-Digital-Assets-1.1', 'deprecated': False},
+    'baekmuk': {'id': 'Baekmuk', 'deprecated': False},
+    'bahyph': {'id': 'Bahyph', 'deprecated': False},
+    'barr': {'id': 'Barr', 'deprecated': False},
+    'bcrypt-solar-designer': {'id': 'bcrypt-Solar-Designer', 'deprecated': False},
+    'beerware': {'id': 'Beerware', 'deprecated': False},
+    'bitstream-charter': {'id': 'Bitstream-Charter', 'deprecated': False},
+    'bitstream-vera': {'id': 'Bitstream-Vera', 'deprecated': False},
+    'bittorrent-1.0': {'id': 'BitTorrent-1.0', 'deprecated': False},
+    'bittorrent-1.1': {'id': 'BitTorrent-1.1', 'deprecated': False},
+    'blessing': {'id': 'blessing', 'deprecated': False},
+    'blueoak-1.0.0': {'id': 'BlueOak-1.0.0', 'deprecated': False},
+    'boehm-gc': {'id': 'Boehm-GC', 'deprecated': False},
+    'boehm-gc-without-fee': {'id': 'Boehm-GC-without-fee', 'deprecated': False},
+    'borceux': {'id': 'Borceux', 'deprecated': False},
+    'brian-gladman-2-clause': {'id': 'Brian-Gladman-2-Clause', 'deprecated': False},
+    'brian-gladman-3-clause': {'id': 'Brian-Gladman-3-Clause', 'deprecated': False},
+    'bsd-1-clause': {'id': 'BSD-1-Clause', 'deprecated': False},
+    'bsd-2-clause': {'id': 'BSD-2-Clause', 'deprecated': False},
+    'bsd-2-clause-darwin': {'id': 'BSD-2-Clause-Darwin', 'deprecated': False},
+    'bsd-2-clause-first-lines': {'id': 'BSD-2-Clause-first-lines', 'deprecated': False},
+    'bsd-2-clause-freebsd': {'id': 'BSD-2-Clause-FreeBSD', 'deprecated': True},
+    'bsd-2-clause-netbsd': {'id': 'BSD-2-Clause-NetBSD', 'deprecated': True},
+    'bsd-2-clause-patent': {'id': 'BSD-2-Clause-Patent', 'deprecated': False},
+    'bsd-2-clause-pkgconf-disclaimer': {'id': 'BSD-2-Clause-pkgconf-disclaimer', 'deprecated': False},
+    'bsd-2-clause-views': {'id': 'BSD-2-Clause-Views', 'deprecated': False},
+    'bsd-3-clause': {'id': 'BSD-3-Clause', 'deprecated': False},
+    'bsd-3-clause-acpica': {'id': 'BSD-3-Clause-acpica', 'deprecated': False},
+    'bsd-3-clause-attribution': {'id': 'BSD-3-Clause-Attribution', 'deprecated': False},
+    'bsd-3-clause-clear': {'id': 'BSD-3-Clause-Clear', 'deprecated': False},
+    'bsd-3-clause-flex': {'id': 'BSD-3-Clause-flex', 'deprecated': False},
+    'bsd-3-clause-hp': {'id': 'BSD-3-Clause-HP', 'deprecated': False},
+    'bsd-3-clause-lbnl': {'id': 'BSD-3-Clause-LBNL', 'deprecated': False},
+    'bsd-3-clause-modification': {'id': 'BSD-3-Clause-Modification', 'deprecated': False},
+    'bsd-3-clause-no-military-license': {'id': 'BSD-3-Clause-No-Military-License', 'deprecated': False},
+    'bsd-3-clause-no-nuclear-license': {'id': 'BSD-3-Clause-No-Nuclear-License', 'deprecated': False},
+    'bsd-3-clause-no-nuclear-license-2014': {'id': 'BSD-3-Clause-No-Nuclear-License-2014', 'deprecated': False},
+    'bsd-3-clause-no-nuclear-warranty': {'id': 'BSD-3-Clause-No-Nuclear-Warranty', 'deprecated': False},
+    'bsd-3-clause-open-mpi': {'id': 'BSD-3-Clause-Open-MPI', 'deprecated': False},
+    'bsd-3-clause-sun': {'id': 'BSD-3-Clause-Sun', 'deprecated': False},
+    'bsd-4-clause': {'id': 'BSD-4-Clause', 'deprecated': False},
+    'bsd-4-clause-shortened': {'id': 'BSD-4-Clause-Shortened', 'deprecated': False},
+    'bsd-4-clause-uc': {'id': 'BSD-4-Clause-UC', 'deprecated': False},
+    'bsd-4.3reno': {'id': 'BSD-4.3RENO', 'deprecated': False},
+    'bsd-4.3tahoe': {'id': 'BSD-4.3TAHOE', 'deprecated': False},
+    'bsd-advertising-acknowledgement': {'id': 'BSD-Advertising-Acknowledgement', 'deprecated': False},
+    'bsd-attribution-hpnd-disclaimer': {'id': 'BSD-Attribution-HPND-disclaimer', 'deprecated': False},
+    'bsd-inferno-nettverk': {'id': 'BSD-Inferno-Nettverk', 'deprecated': False},
+    'bsd-protection': {'id': 'BSD-Protection', 'deprecated': False},
+    'bsd-source-beginning-file': {'id': 'BSD-Source-beginning-file', 'deprecated': False},
+    'bsd-source-code': {'id': 'BSD-Source-Code', 'deprecated': False},
+    'bsd-systemics': {'id': 'BSD-Systemics', 'deprecated': False},
+    'bsd-systemics-w3works': {'id': 'BSD-Systemics-W3Works', 'deprecated': False},
+    'bsl-1.0': {'id': 'BSL-1.0', 'deprecated': False},
+    'busl-1.1': {'id': 'BUSL-1.1', 'deprecated': False},
+    'bzip2-1.0.5': {'id': 'bzip2-1.0.5', 'deprecated': True},
+    'bzip2-1.0.6': {'id': 'bzip2-1.0.6', 'deprecated': False},
+    'c-uda-1.0': {'id': 'C-UDA-1.0', 'deprecated': False},
+    'cal-1.0': {'id': 'CAL-1.0', 'deprecated': False},
+    'cal-1.0-combined-work-exception': {'id': 'CAL-1.0-Combined-Work-Exception', 'deprecated': False},
+    'caldera': {'id': 'Caldera', 'deprecated': False},
+    'caldera-no-preamble': {'id': 'Caldera-no-preamble', 'deprecated': False},
+    'catharon': {'id': 'Catharon', 'deprecated': False},
+    'catosl-1.1': {'id': 'CATOSL-1.1', 'deprecated': False},
+    'cc-by-1.0': {'id': 'CC-BY-1.0', 'deprecated': False},
+    'cc-by-2.0': {'id': 'CC-BY-2.0', 'deprecated': False},
+    'cc-by-2.5': {'id': 'CC-BY-2.5', 'deprecated': False},
+    'cc-by-2.5-au': {'id': 'CC-BY-2.5-AU', 'deprecated': False},
+    'cc-by-3.0': {'id': 'CC-BY-3.0', 'deprecated': False},
+    'cc-by-3.0-at': {'id': 'CC-BY-3.0-AT', 'deprecated': False},
+    'cc-by-3.0-au': {'id': 'CC-BY-3.0-AU', 'deprecated': False},
+    'cc-by-3.0-de': {'id': 'CC-BY-3.0-DE', 'deprecated': False},
+    'cc-by-3.0-igo': {'id': 'CC-BY-3.0-IGO', 'deprecated': False},
+    'cc-by-3.0-nl': {'id': 'CC-BY-3.0-NL', 'deprecated': False},
+    'cc-by-3.0-us': {'id': 'CC-BY-3.0-US', 'deprecated': False},
+    'cc-by-4.0': {'id': 'CC-BY-4.0', 'deprecated': False},
+    'cc-by-nc-1.0': {'id': 'CC-BY-NC-1.0', 'deprecated': False},
+    'cc-by-nc-2.0': {'id': 'CC-BY-NC-2.0', 'deprecated': False},
+    'cc-by-nc-2.5': {'id': 'CC-BY-NC-2.5', 'deprecated': False},
+    'cc-by-nc-3.0': {'id': 'CC-BY-NC-3.0', 'deprecated': False},
+    'cc-by-nc-3.0-de': {'id': 'CC-BY-NC-3.0-DE', 'deprecated': False},
+    'cc-by-nc-4.0': {'id': 'CC-BY-NC-4.0', 'deprecated': False},
+    'cc-by-nc-nd-1.0': {'id': 'CC-BY-NC-ND-1.0', 'deprecated': False},
+    'cc-by-nc-nd-2.0': {'id': 'CC-BY-NC-ND-2.0', 'deprecated': False},
+    'cc-by-nc-nd-2.5': {'id': 'CC-BY-NC-ND-2.5', 'deprecated': False},
+    'cc-by-nc-nd-3.0': {'id': 'CC-BY-NC-ND-3.0', 'deprecated': False},
+    'cc-by-nc-nd-3.0-de': {'id': 'CC-BY-NC-ND-3.0-DE', 'deprecated': False},
+    'cc-by-nc-nd-3.0-igo': {'id': 'CC-BY-NC-ND-3.0-IGO', 'deprecated': False},
+    'cc-by-nc-nd-4.0': {'id': 'CC-BY-NC-ND-4.0', 'deprecated': False},
+    'cc-by-nc-sa-1.0': {'id': 'CC-BY-NC-SA-1.0', 'deprecated': False},
+    'cc-by-nc-sa-2.0': {'id': 'CC-BY-NC-SA-2.0', 'deprecated': False},
+    'cc-by-nc-sa-2.0-de': {'id': 'CC-BY-NC-SA-2.0-DE', 'deprecated': False},
+    'cc-by-nc-sa-2.0-fr': {'id': 'CC-BY-NC-SA-2.0-FR', 'deprecated': False},
+    'cc-by-nc-sa-2.0-uk': {'id': 'CC-BY-NC-SA-2.0-UK', 'deprecated': False},
+    'cc-by-nc-sa-2.5': {'id': 'CC-BY-NC-SA-2.5', 'deprecated': False},
+    'cc-by-nc-sa-3.0': {'id': 'CC-BY-NC-SA-3.0', 'deprecated': False},
+    'cc-by-nc-sa-3.0-de': {'id': 'CC-BY-NC-SA-3.0-DE', 'deprecated': False},
+    'cc-by-nc-sa-3.0-igo': {'id': 'CC-BY-NC-SA-3.0-IGO', 'deprecated': False},
+    'cc-by-nc-sa-4.0': {'id': 'CC-BY-NC-SA-4.0', 'deprecated': False},
+    'cc-by-nd-1.0': {'id': 'CC-BY-ND-1.0', 'deprecated': False},
+    'cc-by-nd-2.0': {'id': 'CC-BY-ND-2.0', 'deprecated': False},
+    'cc-by-nd-2.5': {'id': 'CC-BY-ND-2.5', 'deprecated': False},
+    'cc-by-nd-3.0': {'id': 'CC-BY-ND-3.0', 'deprecated': False},
+    'cc-by-nd-3.0-de': {'id': 'CC-BY-ND-3.0-DE', 'deprecated': False},
+    'cc-by-nd-4.0': {'id': 'CC-BY-ND-4.0', 'deprecated': False},
+    'cc-by-sa-1.0': {'id': 'CC-BY-SA-1.0', 'deprecated': False},
+    'cc-by-sa-2.0': {'id': 'CC-BY-SA-2.0', 'deprecated': False},
+    'cc-by-sa-2.0-uk': {'id': 'CC-BY-SA-2.0-UK', 'deprecated': False},
+    'cc-by-sa-2.1-jp': {'id': 'CC-BY-SA-2.1-JP', 'deprecated': False},
+    'cc-by-sa-2.5': {'id': 'CC-BY-SA-2.5', 'deprecated': False},
+    'cc-by-sa-3.0': {'id': 'CC-BY-SA-3.0', 'deprecated': False},
+    'cc-by-sa-3.0-at': {'id': 'CC-BY-SA-3.0-AT', 'deprecated': False},
+    'cc-by-sa-3.0-de': {'id': 'CC-BY-SA-3.0-DE', 'deprecated': False},
+    'cc-by-sa-3.0-igo': {'id': 'CC-BY-SA-3.0-IGO', 'deprecated': False},
+    'cc-by-sa-4.0': {'id': 'CC-BY-SA-4.0', 'deprecated': False},
+    'cc-pddc': {'id': 'CC-PDDC', 'deprecated': False},
+    'cc-pdm-1.0': {'id': 'CC-PDM-1.0', 'deprecated': False},
+    'cc-sa-1.0': {'id': 'CC-SA-1.0', 'deprecated': False},
+    'cc0-1.0': {'id': 'CC0-1.0', 'deprecated': False},
+    'cddl-1.0': {'id': 'CDDL-1.0', 'deprecated': False},
+    'cddl-1.1': {'id': 'CDDL-1.1', 'deprecated': False},
+    'cdl-1.0': {'id': 'CDL-1.0', 'deprecated': False},
+    'cdla-permissive-1.0': {'id': 'CDLA-Permissive-1.0', 'deprecated': False},
+    'cdla-permissive-2.0': {'id': 'CDLA-Permissive-2.0', 'deprecated': False},
+    'cdla-sharing-1.0': {'id': 'CDLA-Sharing-1.0', 'deprecated': False},
+    'cecill-1.0': {'id': 'CECILL-1.0', 'deprecated': False},
+    'cecill-1.1': {'id': 'CECILL-1.1', 'deprecated': False},
+    'cecill-2.0': {'id': 'CECILL-2.0', 'deprecated': False},
+    'cecill-2.1': {'id': 'CECILL-2.1', 'deprecated': False},
+    'cecill-b': {'id': 'CECILL-B', 'deprecated': False},
+    'cecill-c': {'id': 'CECILL-C', 'deprecated': False},
+    'cern-ohl-1.1': {'id': 'CERN-OHL-1.1', 'deprecated': False},
+    'cern-ohl-1.2': {'id': 'CERN-OHL-1.2', 'deprecated': False},
+    'cern-ohl-p-2.0': {'id': 'CERN-OHL-P-2.0', 'deprecated': False},
+    'cern-ohl-s-2.0': {'id': 'CERN-OHL-S-2.0', 'deprecated': False},
+    'cern-ohl-w-2.0': {'id': 'CERN-OHL-W-2.0', 'deprecated': False},
+    'cfitsio': {'id': 'CFITSIO', 'deprecated': False},
+    'check-cvs': {'id': 'check-cvs', 'deprecated': False},
+    'checkmk': {'id': 'checkmk', 'deprecated': False},
+    'clartistic': {'id': 'ClArtistic', 'deprecated': False},
+    'clips': {'id': 'Clips', 'deprecated': False},
+    'cmu-mach': {'id': 'CMU-Mach', 'deprecated': False},
+    'cmu-mach-nodoc': {'id': 'CMU-Mach-nodoc', 'deprecated': False},
+    'cnri-jython': {'id': 'CNRI-Jython', 'deprecated': False},
+    'cnri-python': {'id': 'CNRI-Python', 'deprecated': False},
+    'cnri-python-gpl-compatible': {'id': 'CNRI-Python-GPL-Compatible', 'deprecated': False},
+    'coil-1.0': {'id': 'COIL-1.0', 'deprecated': False},
+    'community-spec-1.0': {'id': 'Community-Spec-1.0', 'deprecated': False},
+    'condor-1.1': {'id': 'Condor-1.1', 'deprecated': False},
+    'copyleft-next-0.3.0': {'id': 'copyleft-next-0.3.0', 'deprecated': False},
+    'copyleft-next-0.3.1': {'id': 'copyleft-next-0.3.1', 'deprecated': False},
+    'cornell-lossless-jpeg': {'id': 'Cornell-Lossless-JPEG', 'deprecated': False},
+    'cpal-1.0': {'id': 'CPAL-1.0', 'deprecated': False},
+    'cpl-1.0': {'id': 'CPL-1.0', 'deprecated': False},
+    'cpol-1.02': {'id': 'CPOL-1.02', 'deprecated': False},
+    'cronyx': {'id': 'Cronyx', 'deprecated': False},
+    'crossword': {'id': 'Crossword', 'deprecated': False},
+    'cryptoswift': {'id': 'CryptoSwift', 'deprecated': False},
+    'crystalstacker': {'id': 'CrystalStacker', 'deprecated': False},
+    'cua-opl-1.0': {'id': 'CUA-OPL-1.0', 'deprecated': False},
+    'cube': {'id': 'Cube', 'deprecated': False},
+    'curl': {'id': 'curl', 'deprecated': False},
+    'cve-tou': {'id': 'cve-tou', 'deprecated': False},
+    'd-fsl-1.0': {'id': 'D-FSL-1.0', 'deprecated': False},
+    'dec-3-clause': {'id': 'DEC-3-Clause', 'deprecated': False},
+    'diffmark': {'id': 'diffmark', 'deprecated': False},
+    'dl-de-by-2.0': {'id': 'DL-DE-BY-2.0', 'deprecated': False},
+    'dl-de-zero-2.0': {'id': 'DL-DE-ZERO-2.0', 'deprecated': False},
+    'doc': {'id': 'DOC', 'deprecated': False},
+    'docbook-dtd': {'id': 'DocBook-DTD', 'deprecated': False},
+    'docbook-schema': {'id': 'DocBook-Schema', 'deprecated': False},
+    'docbook-stylesheet': {'id': 'DocBook-Stylesheet', 'deprecated': False},
+    'docbook-xml': {'id': 'DocBook-XML', 'deprecated': False},
+    'dotseqn': {'id': 'Dotseqn', 'deprecated': False},
+    'drl-1.0': {'id': 'DRL-1.0', 'deprecated': False},
+    'drl-1.1': {'id': 'DRL-1.1', 'deprecated': False},
+    'dsdp': {'id': 'DSDP', 'deprecated': False},
+    'dtoa': {'id': 'dtoa', 'deprecated': False},
+    'dvipdfm': {'id': 'dvipdfm', 'deprecated': False},
+    'ecl-1.0': {'id': 'ECL-1.0', 'deprecated': False},
+    'ecl-2.0': {'id': 'ECL-2.0', 'deprecated': False},
+    'ecos-2.0': {'id': 'eCos-2.0', 'deprecated': True},
+    'efl-1.0': {'id': 'EFL-1.0', 'deprecated': False},
+    'efl-2.0': {'id': 'EFL-2.0', 'deprecated': False},
+    'egenix': {'id': 'eGenix', 'deprecated': False},
+    'elastic-2.0': {'id': 'Elastic-2.0', 'deprecated': False},
+    'entessa': {'id': 'Entessa', 'deprecated': False},
+    'epics': {'id': 'EPICS', 'deprecated': False},
+    'epl-1.0': {'id': 'EPL-1.0', 'deprecated': False},
+    'epl-2.0': {'id': 'EPL-2.0', 'deprecated': False},
+    'erlpl-1.1': {'id': 'ErlPL-1.1', 'deprecated': False},
+    'etalab-2.0': {'id': 'etalab-2.0', 'deprecated': False},
+    'eudatagrid': {'id': 'EUDatagrid', 'deprecated': False},
+    'eupl-1.0': {'id': 'EUPL-1.0', 'deprecated': False},
+    'eupl-1.1': {'id': 'EUPL-1.1', 'deprecated': False},
+    'eupl-1.2': {'id': 'EUPL-1.2', 'deprecated': False},
+    'eurosym': {'id': 'Eurosym', 'deprecated': False},
+    'fair': {'id': 'Fair', 'deprecated': False},
+    'fbm': {'id': 'FBM', 'deprecated': False},
+    'fdk-aac': {'id': 'FDK-AAC', 'deprecated': False},
+    'ferguson-twofish': {'id': 'Ferguson-Twofish', 'deprecated': False},
+    'frameworx-1.0': {'id': 'Frameworx-1.0', 'deprecated': False},
+    'freebsd-doc': {'id': 'FreeBSD-DOC', 'deprecated': False},
+    'freeimage': {'id': 'FreeImage', 'deprecated': False},
+    'fsfap': {'id': 'FSFAP', 'deprecated': False},
+    'fsfap-no-warranty-disclaimer': {'id': 'FSFAP-no-warranty-disclaimer', 'deprecated': False},
+    'fsful': {'id': 'FSFUL', 'deprecated': False},
+    'fsfullr': {'id': 'FSFULLR', 'deprecated': False},
+    'fsfullrsd': {'id': 'FSFULLRSD', 'deprecated': False},
+    'fsfullrwd': {'id': 'FSFULLRWD', 'deprecated': False},
+    'fsl-1.1-alv2': {'id': 'FSL-1.1-ALv2', 'deprecated': False},
+    'fsl-1.1-mit': {'id': 'FSL-1.1-MIT', 'deprecated': False},
+    'ftl': {'id': 'FTL', 'deprecated': False},
+    'furuseth': {'id': 'Furuseth', 'deprecated': False},
+    'fwlw': {'id': 'fwlw', 'deprecated': False},
+    'game-programming-gems': {'id': 'Game-Programming-Gems', 'deprecated': False},
+    'gcr-docs': {'id': 'GCR-docs', 'deprecated': False},
+    'gd': {'id': 'GD', 'deprecated': False},
+    'generic-xts': {'id': 'generic-xts', 'deprecated': False},
+    'gfdl-1.1': {'id': 'GFDL-1.1', 'deprecated': True},
+    'gfdl-1.1-invariants-only': {'id': 'GFDL-1.1-invariants-only', 'deprecated': False},
+    'gfdl-1.1-invariants-or-later': {'id': 'GFDL-1.1-invariants-or-later', 'deprecated': False},
+    'gfdl-1.1-no-invariants-only': {'id': 'GFDL-1.1-no-invariants-only', 'deprecated': False},
+    'gfdl-1.1-no-invariants-or-later': {'id': 'GFDL-1.1-no-invariants-or-later', 'deprecated': False},
+    'gfdl-1.1-only': {'id': 'GFDL-1.1-only', 'deprecated': False},
+    'gfdl-1.1-or-later': {'id': 'GFDL-1.1-or-later', 'deprecated': False},
+    'gfdl-1.2': {'id': 'GFDL-1.2', 'deprecated': True},
+    'gfdl-1.2-invariants-only': {'id': 'GFDL-1.2-invariants-only', 'deprecated': False},
+    'gfdl-1.2-invariants-or-later': {'id': 'GFDL-1.2-invariants-or-later', 'deprecated': False},
+    'gfdl-1.2-no-invariants-only': {'id': 'GFDL-1.2-no-invariants-only', 'deprecated': False},
+    'gfdl-1.2-no-invariants-or-later': {'id': 'GFDL-1.2-no-invariants-or-later', 'deprecated': False},
+    'gfdl-1.2-only': {'id': 'GFDL-1.2-only', 'deprecated': False},
+    'gfdl-1.2-or-later': {'id': 'GFDL-1.2-or-later', 'deprecated': False},
+    'gfdl-1.3': {'id': 'GFDL-1.3', 'deprecated': True},
+    'gfdl-1.3-invariants-only': {'id': 'GFDL-1.3-invariants-only', 'deprecated': False},
+    'gfdl-1.3-invariants-or-later': {'id': 'GFDL-1.3-invariants-or-later', 'deprecated': False},
+    'gfdl-1.3-no-invariants-only': {'id': 'GFDL-1.3-no-invariants-only', 'deprecated': False},
+    'gfdl-1.3-no-invariants-or-later': {'id': 'GFDL-1.3-no-invariants-or-later', 'deprecated': False},
+    'gfdl-1.3-only': {'id': 'GFDL-1.3-only', 'deprecated': False},
+    'gfdl-1.3-or-later': {'id': 'GFDL-1.3-or-later', 'deprecated': False},
+    'giftware': {'id': 'Giftware', 'deprecated': False},
+    'gl2ps': {'id': 'GL2PS', 'deprecated': False},
+    'glide': {'id': 'Glide', 'deprecated': False},
+    'glulxe': {'id': 'Glulxe', 'deprecated': False},
+    'glwtpl': {'id': 'GLWTPL', 'deprecated': False},
+    'gnuplot': {'id': 'gnuplot', 'deprecated': False},
+    'gpl-1.0': {'id': 'GPL-1.0', 'deprecated': True},
+    'gpl-1.0+': {'id': 'GPL-1.0+', 'deprecated': True},
+    'gpl-1.0-only': {'id': 'GPL-1.0-only', 'deprecated': False},
+    'gpl-1.0-or-later': {'id': 'GPL-1.0-or-later', 'deprecated': False},
+    'gpl-2.0': {'id': 'GPL-2.0', 'deprecated': True},
+    'gpl-2.0+': {'id': 'GPL-2.0+', 'deprecated': True},
+    'gpl-2.0-only': {'id': 'GPL-2.0-only', 'deprecated': False},
+    'gpl-2.0-or-later': {'id': 'GPL-2.0-or-later', 'deprecated': False},
+    'gpl-2.0-with-autoconf-exception': {'id': 'GPL-2.0-with-autoconf-exception', 'deprecated': True},
+    'gpl-2.0-with-bison-exception': {'id': 'GPL-2.0-with-bison-exception', 'deprecated': True},
+    'gpl-2.0-with-classpath-exception': {'id': 'GPL-2.0-with-classpath-exception', 'deprecated': True},
+    'gpl-2.0-with-font-exception': {'id': 'GPL-2.0-with-font-exception', 'deprecated': True},
+    'gpl-2.0-with-gcc-exception': {'id': 'GPL-2.0-with-GCC-exception', 'deprecated': True},
+    'gpl-3.0': {'id': 'GPL-3.0', 'deprecated': True},
+    'gpl-3.0+': {'id': 'GPL-3.0+', 'deprecated': True},
+    'gpl-3.0-only': {'id': 'GPL-3.0-only', 'deprecated': False},
+    'gpl-3.0-or-later': {'id': 'GPL-3.0-or-later', 'deprecated': False},
+    'gpl-3.0-with-autoconf-exception': {'id': 'GPL-3.0-with-autoconf-exception', 'deprecated': True},
+    'gpl-3.0-with-gcc-exception': {'id': 'GPL-3.0-with-GCC-exception', 'deprecated': True},
+    'graphics-gems': {'id': 'Graphics-Gems', 'deprecated': False},
+    'gsoap-1.3b': {'id': 'gSOAP-1.3b', 'deprecated': False},
+    'gtkbook': {'id': 'gtkbook', 'deprecated': False},
+    'gutmann': {'id': 'Gutmann', 'deprecated': False},
+    'haskellreport': {'id': 'HaskellReport', 'deprecated': False},
+    'hdf5': {'id': 'HDF5', 'deprecated': False},
+    'hdparm': {'id': 'hdparm', 'deprecated': False},
+    'hidapi': {'id': 'HIDAPI', 'deprecated': False},
+    'hippocratic-2.1': {'id': 'Hippocratic-2.1', 'deprecated': False},
+    'hp-1986': {'id': 'HP-1986', 'deprecated': False},
+    'hp-1989': {'id': 'HP-1989', 'deprecated': False},
+    'hpnd': {'id': 'HPND', 'deprecated': False},
+    'hpnd-dec': {'id': 'HPND-DEC', 'deprecated': False},
+    'hpnd-doc': {'id': 'HPND-doc', 'deprecated': False},
+    'hpnd-doc-sell': {'id': 'HPND-doc-sell', 'deprecated': False},
+    'hpnd-export-us': {'id': 'HPND-export-US', 'deprecated': False},
+    'hpnd-export-us-acknowledgement': {'id': 'HPND-export-US-acknowledgement', 'deprecated': False},
+    'hpnd-export-us-modify': {'id': 'HPND-export-US-modify', 'deprecated': False},
+    'hpnd-export2-us': {'id': 'HPND-export2-US', 'deprecated': False},
+    'hpnd-fenneberg-livingston': {'id': 'HPND-Fenneberg-Livingston', 'deprecated': False},
+    'hpnd-inria-imag': {'id': 'HPND-INRIA-IMAG', 'deprecated': False},
+    'hpnd-intel': {'id': 'HPND-Intel', 'deprecated': False},
+    'hpnd-kevlin-henney': {'id': 'HPND-Kevlin-Henney', 'deprecated': False},
+    'hpnd-markus-kuhn': {'id': 'HPND-Markus-Kuhn', 'deprecated': False},
+    'hpnd-merchantability-variant': {'id': 'HPND-merchantability-variant', 'deprecated': False},
+    'hpnd-mit-disclaimer': {'id': 'HPND-MIT-disclaimer', 'deprecated': False},
+    'hpnd-netrek': {'id': 'HPND-Netrek', 'deprecated': False},
+    'hpnd-pbmplus': {'id': 'HPND-Pbmplus', 'deprecated': False},
+    'hpnd-sell-mit-disclaimer-xserver': {'id': 'HPND-sell-MIT-disclaimer-xserver', 'deprecated': False},
+    'hpnd-sell-regexpr': {'id': 'HPND-sell-regexpr', 'deprecated': False},
+    'hpnd-sell-variant': {'id': 'HPND-sell-variant', 'deprecated': False},
+    'hpnd-sell-variant-mit-disclaimer': {'id': 'HPND-sell-variant-MIT-disclaimer', 'deprecated': False},
+    'hpnd-sell-variant-mit-disclaimer-rev': {'id': 'HPND-sell-variant-MIT-disclaimer-rev', 'deprecated': False},
+    'hpnd-uc': {'id': 'HPND-UC', 'deprecated': False},
+    'hpnd-uc-export-us': {'id': 'HPND-UC-export-US', 'deprecated': False},
+    'htmltidy': {'id': 'HTMLTIDY', 'deprecated': False},
+    'ibm-pibs': {'id': 'IBM-pibs', 'deprecated': False},
+    'icu': {'id': 'ICU', 'deprecated': False},
+    'iec-code-components-eula': {'id': 'IEC-Code-Components-EULA', 'deprecated': False},
+    'ijg': {'id': 'IJG', 'deprecated': False},
+    'ijg-short': {'id': 'IJG-short', 'deprecated': False},
+    'imagemagick': {'id': 'ImageMagick', 'deprecated': False},
+    'imatix': {'id': 'iMatix', 'deprecated': False},
+    'imlib2': {'id': 'Imlib2', 'deprecated': False},
+    'info-zip': {'id': 'Info-ZIP', 'deprecated': False},
+    'inner-net-2.0': {'id': 'Inner-Net-2.0', 'deprecated': False},
+    'innosetup': {'id': 'InnoSetup', 'deprecated': False},
+    'intel': {'id': 'Intel', 'deprecated': False},
+    'intel-acpi': {'id': 'Intel-ACPI', 'deprecated': False},
+    'interbase-1.0': {'id': 'Interbase-1.0', 'deprecated': False},
+    'ipa': {'id': 'IPA', 'deprecated': False},
+    'ipl-1.0': {'id': 'IPL-1.0', 'deprecated': False},
+    'isc': {'id': 'ISC', 'deprecated': False},
+    'isc-veillard': {'id': 'ISC-Veillard', 'deprecated': False},
+    'jam': {'id': 'Jam', 'deprecated': False},
+    'jasper-2.0': {'id': 'JasPer-2.0', 'deprecated': False},
+    'jove': {'id': 'jove', 'deprecated': False},
+    'jpl-image': {'id': 'JPL-image', 'deprecated': False},
+    'jpnic': {'id': 'JPNIC', 'deprecated': False},
+    'json': {'id': 'JSON', 'deprecated': False},
+    'kastrup': {'id': 'Kastrup', 'deprecated': False},
+    'kazlib': {'id': 'Kazlib', 'deprecated': False},
+    'knuth-ctan': {'id': 'Knuth-CTAN', 'deprecated': False},
+    'lal-1.2': {'id': 'LAL-1.2', 'deprecated': False},
+    'lal-1.3': {'id': 'LAL-1.3', 'deprecated': False},
+    'latex2e': {'id': 'Latex2e', 'deprecated': False},
+    'latex2e-translated-notice': {'id': 'Latex2e-translated-notice', 'deprecated': False},
+    'leptonica': {'id': 'Leptonica', 'deprecated': False},
+    'lgpl-2.0': {'id': 'LGPL-2.0', 'deprecated': True},
+    'lgpl-2.0+': {'id': 'LGPL-2.0+', 'deprecated': True},
+    'lgpl-2.0-only': {'id': 'LGPL-2.0-only', 'deprecated': False},
+    'lgpl-2.0-or-later': {'id': 'LGPL-2.0-or-later', 'deprecated': False},
+    'lgpl-2.1': {'id': 'LGPL-2.1', 'deprecated': True},
+    'lgpl-2.1+': {'id': 'LGPL-2.1+', 'deprecated': True},
+    'lgpl-2.1-only': {'id': 'LGPL-2.1-only', 'deprecated': False},
+    'lgpl-2.1-or-later': {'id': 'LGPL-2.1-or-later', 'deprecated': False},
+    'lgpl-3.0': {'id': 'LGPL-3.0', 'deprecated': True},
+    'lgpl-3.0+': {'id': 'LGPL-3.0+', 'deprecated': True},
+    'lgpl-3.0-only': {'id': 'LGPL-3.0-only', 'deprecated': False},
+    'lgpl-3.0-or-later': {'id': 'LGPL-3.0-or-later', 'deprecated': False},
+    'lgpllr': {'id': 'LGPLLR', 'deprecated': False},
+    'libpng': {'id': 'Libpng', 'deprecated': False},
+    'libpng-1.6.35': {'id': 'libpng-1.6.35', 'deprecated': False},
+    'libpng-2.0': {'id': 'libpng-2.0', 'deprecated': False},
+    'libselinux-1.0': {'id': 'libselinux-1.0', 'deprecated': False},
+    'libtiff': {'id': 'libtiff', 'deprecated': False},
+    'libutil-david-nugent': {'id': 'libutil-David-Nugent', 'deprecated': False},
+    'liliq-p-1.1': {'id': 'LiLiQ-P-1.1', 'deprecated': False},
+    'liliq-r-1.1': {'id': 'LiLiQ-R-1.1', 'deprecated': False},
+    'liliq-rplus-1.1': {'id': 'LiLiQ-Rplus-1.1', 'deprecated': False},
+    'linux-man-pages-1-para': {'id': 'Linux-man-pages-1-para', 'deprecated': False},
+    'linux-man-pages-copyleft': {'id': 'Linux-man-pages-copyleft', 'deprecated': False},
+    'linux-man-pages-copyleft-2-para': {'id': 'Linux-man-pages-copyleft-2-para', 'deprecated': False},
+    'linux-man-pages-copyleft-var': {'id': 'Linux-man-pages-copyleft-var', 'deprecated': False},
+    'linux-openib': {'id': 'Linux-OpenIB', 'deprecated': False},
+    'loop': {'id': 'LOOP', 'deprecated': False},
+    'lpd-document': {'id': 'LPD-document', 'deprecated': False},
+    'lpl-1.0': {'id': 'LPL-1.0', 'deprecated': False},
+    'lpl-1.02': {'id': 'LPL-1.02', 'deprecated': False},
+    'lppl-1.0': {'id': 'LPPL-1.0', 'deprecated': False},
+    'lppl-1.1': {'id': 'LPPL-1.1', 'deprecated': False},
+    'lppl-1.2': {'id': 'LPPL-1.2', 'deprecated': False},
+    'lppl-1.3a': {'id': 'LPPL-1.3a', 'deprecated': False},
+    'lppl-1.3c': {'id': 'LPPL-1.3c', 'deprecated': False},
+    'lsof': {'id': 'lsof', 'deprecated': False},
+    'lucida-bitmap-fonts': {'id': 'Lucida-Bitmap-Fonts', 'deprecated': False},
+    'lzma-sdk-9.11-to-9.20': {'id': 'LZMA-SDK-9.11-to-9.20', 'deprecated': False},
+    'lzma-sdk-9.22': {'id': 'LZMA-SDK-9.22', 'deprecated': False},
+    'mackerras-3-clause': {'id': 'Mackerras-3-Clause', 'deprecated': False},
+    'mackerras-3-clause-acknowledgment': {'id': 'Mackerras-3-Clause-acknowledgment', 'deprecated': False},
+    'magaz': {'id': 'magaz', 'deprecated': False},
+    'mailprio': {'id': 'mailprio', 'deprecated': False},
+    'makeindex': {'id': 'MakeIndex', 'deprecated': False},
+    'man2html': {'id': 'man2html', 'deprecated': False},
+    'martin-birgmeier': {'id': 'Martin-Birgmeier', 'deprecated': False},
+    'mcphee-slideshow': {'id': 'McPhee-slideshow', 'deprecated': False},
+    'metamail': {'id': 'metamail', 'deprecated': False},
+    'minpack': {'id': 'Minpack', 'deprecated': False},
+    'mips': {'id': 'MIPS', 'deprecated': False},
+    'miros': {'id': 'MirOS', 'deprecated': False},
+    'mit': {'id': 'MIT', 'deprecated': False},
+    'mit-0': {'id': 'MIT-0', 'deprecated': False},
+    'mit-advertising': {'id': 'MIT-advertising', 'deprecated': False},
+    'mit-click': {'id': 'MIT-Click', 'deprecated': False},
+    'mit-cmu': {'id': 'MIT-CMU', 'deprecated': False},
+    'mit-enna': {'id': 'MIT-enna', 'deprecated': False},
+    'mit-feh': {'id': 'MIT-feh', 'deprecated': False},
+    'mit-festival': {'id': 'MIT-Festival', 'deprecated': False},
+    'mit-khronos-old': {'id': 'MIT-Khronos-old', 'deprecated': False},
+    'mit-modern-variant': {'id': 'MIT-Modern-Variant', 'deprecated': False},
+    'mit-open-group': {'id': 'MIT-open-group', 'deprecated': False},
+    'mit-testregex': {'id': 'MIT-testregex', 'deprecated': False},
+    'mit-wu': {'id': 'MIT-Wu', 'deprecated': False},
+    'mitnfa': {'id': 'MITNFA', 'deprecated': False},
+    'mmixware': {'id': 'MMIXware', 'deprecated': False},
+    'motosoto': {'id': 'Motosoto', 'deprecated': False},
+    'mpeg-ssg': {'id': 'MPEG-SSG', 'deprecated': False},
+    'mpi-permissive': {'id': 'mpi-permissive', 'deprecated': False},
+    'mpich2': {'id': 'mpich2', 'deprecated': False},
+    'mpl-1.0': {'id': 'MPL-1.0', 'deprecated': False},
+    'mpl-1.1': {'id': 'MPL-1.1', 'deprecated': False},
+    'mpl-2.0': {'id': 'MPL-2.0', 'deprecated': False},
+    'mpl-2.0-no-copyleft-exception': {'id': 'MPL-2.0-no-copyleft-exception', 'deprecated': False},
+    'mplus': {'id': 'mplus', 'deprecated': False},
+    'ms-lpl': {'id': 'MS-LPL', 'deprecated': False},
+    'ms-pl': {'id': 'MS-PL', 'deprecated': False},
+    'ms-rl': {'id': 'MS-RL', 'deprecated': False},
+    'mtll': {'id': 'MTLL', 'deprecated': False},
+    'mulanpsl-1.0': {'id': 'MulanPSL-1.0', 'deprecated': False},
+    'mulanpsl-2.0': {'id': 'MulanPSL-2.0', 'deprecated': False},
+    'multics': {'id': 'Multics', 'deprecated': False},
+    'mup': {'id': 'Mup', 'deprecated': False},
+    'naist-2003': {'id': 'NAIST-2003', 'deprecated': False},
+    'nasa-1.3': {'id': 'NASA-1.3', 'deprecated': False},
+    'naumen': {'id': 'Naumen', 'deprecated': False},
+    'nbpl-1.0': {'id': 'NBPL-1.0', 'deprecated': False},
+    'ncbi-pd': {'id': 'NCBI-PD', 'deprecated': False},
+    'ncgl-uk-2.0': {'id': 'NCGL-UK-2.0', 'deprecated': False},
+    'ncl': {'id': 'NCL', 'deprecated': False},
+    'ncsa': {'id': 'NCSA', 'deprecated': False},
+    'net-snmp': {'id': 'Net-SNMP', 'deprecated': True},
+    'netcdf': {'id': 'NetCDF', 'deprecated': False},
+    'newsletr': {'id': 'Newsletr', 'deprecated': False},
+    'ngpl': {'id': 'NGPL', 'deprecated': False},
+    'ngrep': {'id': 'ngrep', 'deprecated': False},
+    'nicta-1.0': {'id': 'NICTA-1.0', 'deprecated': False},
+    'nist-pd': {'id': 'NIST-PD', 'deprecated': False},
+    'nist-pd-fallback': {'id': 'NIST-PD-fallback', 'deprecated': False},
+    'nist-software': {'id': 'NIST-Software', 'deprecated': False},
+    'nlod-1.0': {'id': 'NLOD-1.0', 'deprecated': False},
+    'nlod-2.0': {'id': 'NLOD-2.0', 'deprecated': False},
+    'nlpl': {'id': 'NLPL', 'deprecated': False},
+    'nokia': {'id': 'Nokia', 'deprecated': False},
+    'nosl': {'id': 'NOSL', 'deprecated': False},
+    'noweb': {'id': 'Noweb', 'deprecated': False},
+    'npl-1.0': {'id': 'NPL-1.0', 'deprecated': False},
+    'npl-1.1': {'id': 'NPL-1.1', 'deprecated': False},
+    'nposl-3.0': {'id': 'NPOSL-3.0', 'deprecated': False},
+    'nrl': {'id': 'NRL', 'deprecated': False},
+    'ntia-pd': {'id': 'NTIA-PD', 'deprecated': False},
+    'ntp': {'id': 'NTP', 'deprecated': False},
+    'ntp-0': {'id': 'NTP-0', 'deprecated': False},
+    'nunit': {'id': 'Nunit', 'deprecated': True},
+    'o-uda-1.0': {'id': 'O-UDA-1.0', 'deprecated': False},
+    'oar': {'id': 'OAR', 'deprecated': False},
+    'occt-pl': {'id': 'OCCT-PL', 'deprecated': False},
+    'oclc-2.0': {'id': 'OCLC-2.0', 'deprecated': False},
+    'odbl-1.0': {'id': 'ODbL-1.0', 'deprecated': False},
+    'odc-by-1.0': {'id': 'ODC-By-1.0', 'deprecated': False},
+    'offis': {'id': 'OFFIS', 'deprecated': False},
+    'ofl-1.0': {'id': 'OFL-1.0', 'deprecated': False},
+    'ofl-1.0-no-rfn': {'id': 'OFL-1.0-no-RFN', 'deprecated': False},
+    'ofl-1.0-rfn': {'id': 'OFL-1.0-RFN', 'deprecated': False},
+    'ofl-1.1': {'id': 'OFL-1.1', 'deprecated': False},
+    'ofl-1.1-no-rfn': {'id': 'OFL-1.1-no-RFN', 'deprecated': False},
+    'ofl-1.1-rfn': {'id': 'OFL-1.1-RFN', 'deprecated': False},
+    'ogc-1.0': {'id': 'OGC-1.0', 'deprecated': False},
+    'ogdl-taiwan-1.0': {'id': 'OGDL-Taiwan-1.0', 'deprecated': False},
+    'ogl-canada-2.0': {'id': 'OGL-Canada-2.0', 'deprecated': False},
+    'ogl-uk-1.0': {'id': 'OGL-UK-1.0', 'deprecated': False},
+    'ogl-uk-2.0': {'id': 'OGL-UK-2.0', 'deprecated': False},
+    'ogl-uk-3.0': {'id': 'OGL-UK-3.0', 'deprecated': False},
+    'ogtsl': {'id': 'OGTSL', 'deprecated': False},
+    'oldap-1.1': {'id': 'OLDAP-1.1', 'deprecated': False},
+    'oldap-1.2': {'id': 'OLDAP-1.2', 'deprecated': False},
+    'oldap-1.3': {'id': 'OLDAP-1.3', 'deprecated': False},
+    'oldap-1.4': {'id': 'OLDAP-1.4', 'deprecated': False},
+    'oldap-2.0': {'id': 'OLDAP-2.0', 'deprecated': False},
+    'oldap-2.0.1': {'id': 'OLDAP-2.0.1', 'deprecated': False},
+    'oldap-2.1': {'id': 'OLDAP-2.1', 'deprecated': False},
+    'oldap-2.2': {'id': 'OLDAP-2.2', 'deprecated': False},
+    'oldap-2.2.1': {'id': 'OLDAP-2.2.1', 'deprecated': False},
+    'oldap-2.2.2': {'id': 'OLDAP-2.2.2', 'deprecated': False},
+    'oldap-2.3': {'id': 'OLDAP-2.3', 'deprecated': False},
+    'oldap-2.4': {'id': 'OLDAP-2.4', 'deprecated': False},
+    'oldap-2.5': {'id': 'OLDAP-2.5', 'deprecated': False},
+    'oldap-2.6': {'id': 'OLDAP-2.6', 'deprecated': False},
+    'oldap-2.7': {'id': 'OLDAP-2.7', 'deprecated': False},
+    'oldap-2.8': {'id': 'OLDAP-2.8', 'deprecated': False},
+    'olfl-1.3': {'id': 'OLFL-1.3', 'deprecated': False},
+    'oml': {'id': 'OML', 'deprecated': False},
+    'openpbs-2.3': {'id': 'OpenPBS-2.3', 'deprecated': False},
+    'openssl': {'id': 'OpenSSL', 'deprecated': False},
+    'openssl-standalone': {'id': 'OpenSSL-standalone', 'deprecated': False},
+    'openvision': {'id': 'OpenVision', 'deprecated': False},
+    'opl-1.0': {'id': 'OPL-1.0', 'deprecated': False},
+    'opl-uk-3.0': {'id': 'OPL-UK-3.0', 'deprecated': False},
+    'opubl-1.0': {'id': 'OPUBL-1.0', 'deprecated': False},
+    'oset-pl-2.1': {'id': 'OSET-PL-2.1', 'deprecated': False},
+    'osl-1.0': {'id': 'OSL-1.0', 'deprecated': False},
+    'osl-1.1': {'id': 'OSL-1.1', 'deprecated': False},
+    'osl-2.0': {'id': 'OSL-2.0', 'deprecated': False},
+    'osl-2.1': {'id': 'OSL-2.1', 'deprecated': False},
+    'osl-3.0': {'id': 'OSL-3.0', 'deprecated': False},
+    'padl': {'id': 'PADL', 'deprecated': False},
+    'parity-6.0.0': {'id': 'Parity-6.0.0', 'deprecated': False},
+    'parity-7.0.0': {'id': 'Parity-7.0.0', 'deprecated': False},
+    'pddl-1.0': {'id': 'PDDL-1.0', 'deprecated': False},
+    'php-3.0': {'id': 'PHP-3.0', 'deprecated': False},
+    'php-3.01': {'id': 'PHP-3.01', 'deprecated': False},
+    'pixar': {'id': 'Pixar', 'deprecated': False},
+    'pkgconf': {'id': 'pkgconf', 'deprecated': False},
+    'plexus': {'id': 'Plexus', 'deprecated': False},
+    'pnmstitch': {'id': 'pnmstitch', 'deprecated': False},
+    'polyform-noncommercial-1.0.0': {'id': 'PolyForm-Noncommercial-1.0.0', 'deprecated': False},
+    'polyform-small-business-1.0.0': {'id': 'PolyForm-Small-Business-1.0.0', 'deprecated': False},
+    'postgresql': {'id': 'PostgreSQL', 'deprecated': False},
+    'ppl': {'id': 'PPL', 'deprecated': False},
+    'psf-2.0': {'id': 'PSF-2.0', 'deprecated': False},
+    'psfrag': {'id': 'psfrag', 'deprecated': False},
+    'psutils': {'id': 'psutils', 'deprecated': False},
+    'python-2.0': {'id': 'Python-2.0', 'deprecated': False},
+    'python-2.0.1': {'id': 'Python-2.0.1', 'deprecated': False},
+    'python-ldap': {'id': 'python-ldap', 'deprecated': False},
+    'qhull': {'id': 'Qhull', 'deprecated': False},
+    'qpl-1.0': {'id': 'QPL-1.0', 'deprecated': False},
+    'qpl-1.0-inria-2004': {'id': 'QPL-1.0-INRIA-2004', 'deprecated': False},
+    'radvd': {'id': 'radvd', 'deprecated': False},
+    'rdisc': {'id': 'Rdisc', 'deprecated': False},
+    'rhecos-1.1': {'id': 'RHeCos-1.1', 'deprecated': False},
+    'rpl-1.1': {'id': 'RPL-1.1', 'deprecated': False},
+    'rpl-1.5': {'id': 'RPL-1.5', 'deprecated': False},
+    'rpsl-1.0': {'id': 'RPSL-1.0', 'deprecated': False},
+    'rsa-md': {'id': 'RSA-MD', 'deprecated': False},
+    'rscpl': {'id': 'RSCPL', 'deprecated': False},
+    'ruby': {'id': 'Ruby', 'deprecated': False},
+    'ruby-pty': {'id': 'Ruby-pty', 'deprecated': False},
+    'sax-pd': {'id': 'SAX-PD', 'deprecated': False},
+    'sax-pd-2.0': {'id': 'SAX-PD-2.0', 'deprecated': False},
+    'saxpath': {'id': 'Saxpath', 'deprecated': False},
+    'scea': {'id': 'SCEA', 'deprecated': False},
+    'schemereport': {'id': 'SchemeReport', 'deprecated': False},
+    'sendmail': {'id': 'Sendmail', 'deprecated': False},
+    'sendmail-8.23': {'id': 'Sendmail-8.23', 'deprecated': False},
+    'sendmail-open-source-1.1': {'id': 'Sendmail-Open-Source-1.1', 'deprecated': False},
+    'sgi-b-1.0': {'id': 'SGI-B-1.0', 'deprecated': False},
+    'sgi-b-1.1': {'id': 'SGI-B-1.1', 'deprecated': False},
+    'sgi-b-2.0': {'id': 'SGI-B-2.0', 'deprecated': False},
+    'sgi-opengl': {'id': 'SGI-OpenGL', 'deprecated': False},
+    'sgp4': {'id': 'SGP4', 'deprecated': False},
+    'shl-0.5': {'id': 'SHL-0.5', 'deprecated': False},
+    'shl-0.51': {'id': 'SHL-0.51', 'deprecated': False},
+    'simpl-2.0': {'id': 'SimPL-2.0', 'deprecated': False},
+    'sissl': {'id': 'SISSL', 'deprecated': False},
+    'sissl-1.2': {'id': 'SISSL-1.2', 'deprecated': False},
+    'sl': {'id': 'SL', 'deprecated': False},
+    'sleepycat': {'id': 'Sleepycat', 'deprecated': False},
+    'smail-gpl': {'id': 'SMAIL-GPL', 'deprecated': False},
+    'smlnj': {'id': 'SMLNJ', 'deprecated': False},
+    'smppl': {'id': 'SMPPL', 'deprecated': False},
+    'snia': {'id': 'SNIA', 'deprecated': False},
+    'snprintf': {'id': 'snprintf', 'deprecated': False},
+    'sofa': {'id': 'SOFA', 'deprecated': False},
+    'softsurfer': {'id': 'softSurfer', 'deprecated': False},
+    'soundex': {'id': 'Soundex', 'deprecated': False},
+    'spencer-86': {'id': 'Spencer-86', 'deprecated': False},
+    'spencer-94': {'id': 'Spencer-94', 'deprecated': False},
+    'spencer-99': {'id': 'Spencer-99', 'deprecated': False},
+    'spl-1.0': {'id': 'SPL-1.0', 'deprecated': False},
+    'ssh-keyscan': {'id': 'ssh-keyscan', 'deprecated': False},
+    'ssh-openssh': {'id': 'SSH-OpenSSH', 'deprecated': False},
+    'ssh-short': {'id': 'SSH-short', 'deprecated': False},
+    'ssleay-standalone': {'id': 'SSLeay-standalone', 'deprecated': False},
+    'sspl-1.0': {'id': 'SSPL-1.0', 'deprecated': False},
+    'standardml-nj': {'id': 'StandardML-NJ', 'deprecated': True},
+    'sugarcrm-1.1.3': {'id': 'SugarCRM-1.1.3', 'deprecated': False},
+    'sul-1.0': {'id': 'SUL-1.0', 'deprecated': False},
+    'sun-ppp': {'id': 'Sun-PPP', 'deprecated': False},
+    'sun-ppp-2000': {'id': 'Sun-PPP-2000', 'deprecated': False},
+    'sunpro': {'id': 'SunPro', 'deprecated': False},
+    'swl': {'id': 'SWL', 'deprecated': False},
+    'swrule': {'id': 'swrule', 'deprecated': False},
+    'symlinks': {'id': 'Symlinks', 'deprecated': False},
+    'tapr-ohl-1.0': {'id': 'TAPR-OHL-1.0', 'deprecated': False},
+    'tcl': {'id': 'TCL', 'deprecated': False},
+    'tcp-wrappers': {'id': 'TCP-wrappers', 'deprecated': False},
+    'termreadkey': {'id': 'TermReadKey', 'deprecated': False},
+    'tgppl-1.0': {'id': 'TGPPL-1.0', 'deprecated': False},
+    'thirdeye': {'id': 'ThirdEye', 'deprecated': False},
+    'threeparttable': {'id': 'threeparttable', 'deprecated': False},
+    'tmate': {'id': 'TMate', 'deprecated': False},
+    'torque-1.1': {'id': 'TORQUE-1.1', 'deprecated': False},
+    'tosl': {'id': 'TOSL', 'deprecated': False},
+    'tpdl': {'id': 'TPDL', 'deprecated': False},
+    'tpl-1.0': {'id': 'TPL-1.0', 'deprecated': False},
+    'trustedqsl': {'id': 'TrustedQSL', 'deprecated': False},
+    'ttwl': {'id': 'TTWL', 'deprecated': False},
+    'ttyp0': {'id': 'TTYP0', 'deprecated': False},
+    'tu-berlin-1.0': {'id': 'TU-Berlin-1.0', 'deprecated': False},
+    'tu-berlin-2.0': {'id': 'TU-Berlin-2.0', 'deprecated': False},
+    'ubuntu-font-1.0': {'id': 'Ubuntu-font-1.0', 'deprecated': False},
+    'ucar': {'id': 'UCAR', 'deprecated': False},
+    'ucl-1.0': {'id': 'UCL-1.0', 'deprecated': False},
+    'ulem': {'id': 'ulem', 'deprecated': False},
+    'umich-merit': {'id': 'UMich-Merit', 'deprecated': False},
+    'unicode-3.0': {'id': 'Unicode-3.0', 'deprecated': False},
+    'unicode-dfs-2015': {'id': 'Unicode-DFS-2015', 'deprecated': False},
+    'unicode-dfs-2016': {'id': 'Unicode-DFS-2016', 'deprecated': False},
+    'unicode-tou': {'id': 'Unicode-TOU', 'deprecated': False},
+    'unixcrypt': {'id': 'UnixCrypt', 'deprecated': False},
+    'unlicense': {'id': 'Unlicense', 'deprecated': False},
+    'unlicense-libtelnet': {'id': 'Unlicense-libtelnet', 'deprecated': False},
+    'unlicense-libwhirlpool': {'id': 'Unlicense-libwhirlpool', 'deprecated': False},
+    'upl-1.0': {'id': 'UPL-1.0', 'deprecated': False},
+    'urt-rle': {'id': 'URT-RLE', 'deprecated': False},
+    'vim': {'id': 'Vim', 'deprecated': False},
+    'vostrom': {'id': 'VOSTROM', 'deprecated': False},
+    'vsl-1.0': {'id': 'VSL-1.0', 'deprecated': False},
+    'w3c': {'id': 'W3C', 'deprecated': False},
+    'w3c-19980720': {'id': 'W3C-19980720', 'deprecated': False},
+    'w3c-20150513': {'id': 'W3C-20150513', 'deprecated': False},
+    'w3m': {'id': 'w3m', 'deprecated': False},
+    'watcom-1.0': {'id': 'Watcom-1.0', 'deprecated': False},
+    'widget-workshop': {'id': 'Widget-Workshop', 'deprecated': False},
+    'wsuipa': {'id': 'Wsuipa', 'deprecated': False},
+    'wtfpl': {'id': 'WTFPL', 'deprecated': False},
+    'wwl': {'id': 'wwl', 'deprecated': False},
+    'wxwindows': {'id': 'wxWindows', 'deprecated': True},
+    'x11': {'id': 'X11', 'deprecated': False},
+    'x11-distribute-modifications-variant': {'id': 'X11-distribute-modifications-variant', 'deprecated': False},
+    'x11-swapped': {'id': 'X11-swapped', 'deprecated': False},
+    'xdebug-1.03': {'id': 'Xdebug-1.03', 'deprecated': False},
+    'xerox': {'id': 'Xerox', 'deprecated': False},
+    'xfig': {'id': 'Xfig', 'deprecated': False},
+    'xfree86-1.1': {'id': 'XFree86-1.1', 'deprecated': False},
+    'xinetd': {'id': 'xinetd', 'deprecated': False},
+    'xkeyboard-config-zinoviev': {'id': 'xkeyboard-config-Zinoviev', 'deprecated': False},
+    'xlock': {'id': 'xlock', 'deprecated': False},
+    'xnet': {'id': 'Xnet', 'deprecated': False},
+    'xpp': {'id': 'xpp', 'deprecated': False},
+    'xskat': {'id': 'XSkat', 'deprecated': False},
+    'xzoom': {'id': 'xzoom', 'deprecated': False},
+    'ypl-1.0': {'id': 'YPL-1.0', 'deprecated': False},
+    'ypl-1.1': {'id': 'YPL-1.1', 'deprecated': False},
+    'zed': {'id': 'Zed', 'deprecated': False},
+    'zeeff': {'id': 'Zeeff', 'deprecated': False},
+    'zend-2.0': {'id': 'Zend-2.0', 'deprecated': False},
+    'zimbra-1.3': {'id': 'Zimbra-1.3', 'deprecated': False},
+    'zimbra-1.4': {'id': 'Zimbra-1.4', 'deprecated': False},
+    'zlib': {'id': 'Zlib', 'deprecated': False},
+    'zlib-acknowledgement': {'id': 'zlib-acknowledgement', 'deprecated': False},
+    'zpl-1.1': {'id': 'ZPL-1.1', 'deprecated': False},
+    'zpl-2.0': {'id': 'ZPL-2.0', 'deprecated': False},
+    'zpl-2.1': {'id': 'ZPL-2.1', 'deprecated': False},
+}
+
+EXCEPTIONS: dict[str, SPDXException] = {
+    '389-exception': {'id': '389-exception', 'deprecated': False},
+    'asterisk-exception': {'id': 'Asterisk-exception', 'deprecated': False},
+    'asterisk-linking-protocols-exception': {'id': 'Asterisk-linking-protocols-exception', 'deprecated': False},
+    'autoconf-exception-2.0': {'id': 'Autoconf-exception-2.0', 'deprecated': False},
+    'autoconf-exception-3.0': {'id': 'Autoconf-exception-3.0', 'deprecated': False},
+    'autoconf-exception-generic': {'id': 'Autoconf-exception-generic', 'deprecated': False},
+    'autoconf-exception-generic-3.0': {'id': 'Autoconf-exception-generic-3.0', 'deprecated': False},
+    'autoconf-exception-macro': {'id': 'Autoconf-exception-macro', 'deprecated': False},
+    'bison-exception-1.24': {'id': 'Bison-exception-1.24', 'deprecated': False},
+    'bison-exception-2.2': {'id': 'Bison-exception-2.2', 'deprecated': False},
+    'bootloader-exception': {'id': 'Bootloader-exception', 'deprecated': False},
+    'cgal-linking-exception': {'id': 'CGAL-linking-exception', 'deprecated': False},
+    'classpath-exception-2.0': {'id': 'Classpath-exception-2.0', 'deprecated': False},
+    'clisp-exception-2.0': {'id': 'CLISP-exception-2.0', 'deprecated': False},
+    'cryptsetup-openssl-exception': {'id': 'cryptsetup-OpenSSL-exception', 'deprecated': False},
+    'digia-qt-lgpl-exception-1.1': {'id': 'Digia-Qt-LGPL-exception-1.1', 'deprecated': False},
+    'digirule-foss-exception': {'id': 'DigiRule-FOSS-exception', 'deprecated': False},
+    'ecos-exception-2.0': {'id': 'eCos-exception-2.0', 'deprecated': False},
+    'erlang-otp-linking-exception': {'id': 'erlang-otp-linking-exception', 'deprecated': False},
+    'fawkes-runtime-exception': {'id': 'Fawkes-Runtime-exception', 'deprecated': False},
+    'fltk-exception': {'id': 'FLTK-exception', 'deprecated': False},
+    'fmt-exception': {'id': 'fmt-exception', 'deprecated': False},
+    'font-exception-2.0': {'id': 'Font-exception-2.0', 'deprecated': False},
+    'freertos-exception-2.0': {'id': 'freertos-exception-2.0', 'deprecated': False},
+    'gcc-exception-2.0': {'id': 'GCC-exception-2.0', 'deprecated': False},
+    'gcc-exception-2.0-note': {'id': 'GCC-exception-2.0-note', 'deprecated': False},
+    'gcc-exception-3.1': {'id': 'GCC-exception-3.1', 'deprecated': False},
+    'gmsh-exception': {'id': 'Gmsh-exception', 'deprecated': False},
+    'gnat-exception': {'id': 'GNAT-exception', 'deprecated': False},
+    'gnome-examples-exception': {'id': 'GNOME-examples-exception', 'deprecated': False},
+    'gnu-compiler-exception': {'id': 'GNU-compiler-exception', 'deprecated': False},
+    'gnu-javamail-exception': {'id': 'gnu-javamail-exception', 'deprecated': False},
+    'gpl-3.0-389-ds-base-exception': {'id': 'GPL-3.0-389-ds-base-exception', 'deprecated': False},
+    'gpl-3.0-interface-exception': {'id': 'GPL-3.0-interface-exception', 'deprecated': False},
+    'gpl-3.0-linking-exception': {'id': 'GPL-3.0-linking-exception', 'deprecated': False},
+    'gpl-3.0-linking-source-exception': {'id': 'GPL-3.0-linking-source-exception', 'deprecated': False},
+    'gpl-cc-1.0': {'id': 'GPL-CC-1.0', 'deprecated': False},
+    'gstreamer-exception-2005': {'id': 'GStreamer-exception-2005', 'deprecated': False},
+    'gstreamer-exception-2008': {'id': 'GStreamer-exception-2008', 'deprecated': False},
+    'harbour-exception': {'id': 'harbour-exception', 'deprecated': False},
+    'i2p-gpl-java-exception': {'id': 'i2p-gpl-java-exception', 'deprecated': False},
+    'independent-modules-exception': {'id': 'Independent-modules-exception', 'deprecated': False},
+    'kicad-libraries-exception': {'id': 'KiCad-libraries-exception', 'deprecated': False},
+    'lgpl-3.0-linking-exception': {'id': 'LGPL-3.0-linking-exception', 'deprecated': False},
+    'libpri-openh323-exception': {'id': 'libpri-OpenH323-exception', 'deprecated': False},
+    'libtool-exception': {'id': 'Libtool-exception', 'deprecated': False},
+    'linux-syscall-note': {'id': 'Linux-syscall-note', 'deprecated': False},
+    'llgpl': {'id': 'LLGPL', 'deprecated': False},
+    'llvm-exception': {'id': 'LLVM-exception', 'deprecated': False},
+    'lzma-exception': {'id': 'LZMA-exception', 'deprecated': False},
+    'mif-exception': {'id': 'mif-exception', 'deprecated': False},
+    'mxml-exception': {'id': 'mxml-exception', 'deprecated': False},
+    'nokia-qt-exception-1.1': {'id': 'Nokia-Qt-exception-1.1', 'deprecated': True},
+    'ocaml-lgpl-linking-exception': {'id': 'OCaml-LGPL-linking-exception', 'deprecated': False},
+    'occt-exception-1.0': {'id': 'OCCT-exception-1.0', 'deprecated': False},
+    'openjdk-assembly-exception-1.0': {'id': 'OpenJDK-assembly-exception-1.0', 'deprecated': False},
+    'openvpn-openssl-exception': {'id': 'openvpn-openssl-exception', 'deprecated': False},
+    'pcre2-exception': {'id': 'PCRE2-exception', 'deprecated': False},
+    'polyparse-exception': {'id': 'polyparse-exception', 'deprecated': False},
+    'ps-or-pdf-font-exception-20170817': {'id': 'PS-or-PDF-font-exception-20170817', 'deprecated': False},
+    'qpl-1.0-inria-2004-exception': {'id': 'QPL-1.0-INRIA-2004-exception', 'deprecated': False},
+    'qt-gpl-exception-1.0': {'id': 'Qt-GPL-exception-1.0', 'deprecated': False},
+    'qt-lgpl-exception-1.1': {'id': 'Qt-LGPL-exception-1.1', 'deprecated': False},
+    'qwt-exception-1.0': {'id': 'Qwt-exception-1.0', 'deprecated': False},
+    'romic-exception': {'id': 'romic-exception', 'deprecated': False},
+    'rrdtool-floss-exception-2.0': {'id': 'RRDtool-FLOSS-exception-2.0', 'deprecated': False},
+    'sane-exception': {'id': 'SANE-exception', 'deprecated': False},
+    'shl-2.0': {'id': 'SHL-2.0', 'deprecated': False},
+    'shl-2.1': {'id': 'SHL-2.1', 'deprecated': False},
+    'stunnel-exception': {'id': 'stunnel-exception', 'deprecated': False},
+    'swi-exception': {'id': 'SWI-exception', 'deprecated': False},
+    'swift-exception': {'id': 'Swift-exception', 'deprecated': False},
+    'texinfo-exception': {'id': 'Texinfo-exception', 'deprecated': False},
+    'u-boot-exception-2.0': {'id': 'u-boot-exception-2.0', 'deprecated': False},
+    'ubdl-exception': {'id': 'UBDL-exception', 'deprecated': False},
+    'universal-foss-exception-1.0': {'id': 'Universal-FOSS-exception-1.0', 'deprecated': False},
+    'vsftpd-openssl-exception': {'id': 'vsftpd-openssl-exception', 'deprecated': False},
+    'wxwindows-exception-3.1': {'id': 'WxWindows-exception-3.1', 'deprecated': False},
+    'x11vnc-openssl-exception': {'id': 'x11vnc-openssl-exception', 'deprecated': False},
+}

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/markers.py

@@ -0,0 +1,492 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import operator
+import os
+import platform
+import sys
+from typing import AbstractSet, Callable, Literal, Mapping, TypedDict, Union, cast
+
+from ._parser import MarkerAtom, MarkerList, Op, Value, Variable
+from ._parser import parse_marker as _parse_marker
+from ._tokenizer import ParserSyntaxError
+from .specifiers import InvalidSpecifier, Specifier
+from .utils import canonicalize_name
+
+__all__ = [
+    "Environment",
+    "EvaluateContext",
+    "InvalidMarker",
+    "Marker",
+    "UndefinedComparison",
+    "UndefinedEnvironmentName",
+    "default_environment",
+]
+
+
+def __dir__() -> list[str]:
+    return __all__
+
+
+Operator = Callable[[str, Union[str, AbstractSet[str]]], bool]
+EvaluateContext = Literal["metadata", "lock_file", "requirement"]
+"""A ``typing.Literal`` enumerating valid marker evaluation contexts.
+
+Valid values for the ``context`` passed to :meth:`Marker.evaluate` are:
+
+* ``"metadata"`` (for core metadata; default)
+* ``"lock_file"`` (for lock files)
+* ``"requirement"`` (i.e. all other situations)
+"""
+
+MARKERS_ALLOWING_SET = {"extras", "dependency_groups"}
+MARKERS_REQUIRING_VERSION = {
+    "implementation_version",
+    "platform_release",
+    "python_full_version",
+    "python_version",
+}
+
+
+class InvalidMarker(ValueError):
+    """Raised when attempting to create a :class:`Marker` from invalid input.
+
+    This error indicates that the given marker string does not conform to the
+    :ref:`specification of dependency specifiers <pypug:dependency-specifiers>`.
+    """
+
+
+class UndefinedComparison(ValueError):
+    """Raised when evaluating an unsupported marker comparison.
+
+    This can happen when marker values are compared as versions but do not
+    conform to the :ref:`specification of version specifiers
+    <pypug:version-specifiers>`.
+    """
+
+
+class UndefinedEnvironmentName(ValueError):
+    """Raised when evaluating a marker that references a missing environment key."""
+
+
+class Environment(TypedDict):
+    """
+    A dictionary that represents a Python environment as captured by
+    :func:`default_environment`. All fields are required.
+    """
+
+    implementation_name: str
+    """The implementation's identifier, e.g. ``'cpython'``."""
+
+    implementation_version: str
+    """
+    The implementation's version, e.g. ``'3.13.0a2'`` for CPython 3.13.0a2, or
+    ``'7.3.13'`` for PyPy3.10 v7.3.13.
+    """
+
+    os_name: str
+    """
+    The value of :py:data:`os.name`. The name of the operating system dependent module
+    imported, e.g. ``'posix'``.
+    """
+
+    platform_machine: str
+    """
+    Returns the machine type, e.g. ``'i386'``.
+
+    An empty string if the value cannot be determined.
+    """
+
+    platform_release: str
+    """
+    The system's release, e.g. ``'2.2.0'`` or ``'NT'``.
+
+    An empty string if the value cannot be determined.
+    """
+
+    platform_system: str
+    """
+    The system/OS name, e.g. ``'Linux'``, ``'Windows'`` or ``'Java'``.
+
+    An empty string if the value cannot be determined.
+    """
+
+    platform_version: str
+    """
+    The system's release version, e.g. ``'#3 on degas'``.
+
+    An empty string if the value cannot be determined.
+    """
+
+    python_full_version: str
+    """
+    The Python version as string ``'major.minor.patchlevel'``.
+
+    Note that unlike the Python :py:data:`sys.version`, this value will always include
+    the patchlevel (it defaults to 0).
+    """
+
+    platform_python_implementation: str
+    """
+    A string identifying the Python implementation, e.g. ``'CPython'``.
+    """
+
+    python_version: str
+    """The Python version as string ``'major.minor'``."""
+
+    sys_platform: str
+    """
+    This string contains a platform identifier that can be used to append
+    platform-specific components to :py:data:`sys.path`, for instance.
+
+    For Unix systems, except on Linux and AIX, this is the lowercased OS name as
+    returned by ``uname -s`` with the first part of the version as returned by
+    ``uname -r`` appended, e.g. ``'sunos5'`` or ``'freebsd8'``, at the time when Python
+    was built.
+    """
+
+
+def _normalize_extras(
+    result: MarkerList | MarkerAtom | str,
+) -> MarkerList | MarkerAtom | str:
+    if not isinstance(result, tuple):
+        return result
+
+    lhs, op, rhs = result
+    if isinstance(lhs, Variable) and lhs.value == "extra":
+        normalized_extra = canonicalize_name(rhs.value)
+        rhs = Value(normalized_extra)
+    elif isinstance(rhs, Variable) and rhs.value == "extra":
+        normalized_extra = canonicalize_name(lhs.value)
+        lhs = Value(normalized_extra)
+    return lhs, op, rhs
+
+
+def _normalize_extra_values(results: MarkerList) -> MarkerList:
+    """
+    Normalize extra values.
+    """
+
+    return [_normalize_extras(r) for r in results]
+
+
+def _format_marker(
+    marker: list[str] | MarkerAtom | str, first: bool | None = True
+) -> str:
+    assert isinstance(marker, (list, tuple, str))
+
+    # Sometimes we have a structure like [[...]] which is a single item list
+    # where the single item is itself it's own list. In that case we want skip
+    # the rest of this function so that we don't get extraneous () on the
+    # outside.
+    if (
+        isinstance(marker, list)
+        and len(marker) == 1
+        and isinstance(marker[0], (list, tuple))
+    ):
+        return _format_marker(marker[0])
+
+    if isinstance(marker, list):
+        inner = (_format_marker(m, first=False) for m in marker)
+        if first:
+            return " ".join(inner)
+        else:
+            return "(" + " ".join(inner) + ")"
+    elif isinstance(marker, tuple):
+        return " ".join([m.serialize() for m in marker])
+    else:
+        return marker
+
+
+_operators: dict[str, Operator] = {
+    "in": lambda lhs, rhs: lhs in rhs,
+    "not in": lambda lhs, rhs: lhs not in rhs,
+    "<": lambda _lhs, _rhs: False,
+    "<=": operator.eq,
+    "==": operator.eq,
+    "!=": operator.ne,
+    ">=": operator.eq,
+    ">": lambda _lhs, _rhs: False,
+}
+
+
+def _eval_op(lhs: str, op: Op, rhs: str | AbstractSet[str], *, key: str) -> bool:
+    op_str = op.serialize()
+    if key in MARKERS_REQUIRING_VERSION:
+        try:
+            spec = Specifier(f"{op_str}{rhs}")
+        except InvalidSpecifier:
+            pass
+        else:
+            return spec.contains(lhs, prereleases=True)
+
+    oper: Operator | None = _operators.get(op_str)
+    if oper is None:
+        raise UndefinedComparison(f"Undefined {op!r} on {lhs!r} and {rhs!r}.")
+
+    return oper(lhs, rhs)
+
+
+def _normalize(
+    lhs: str, rhs: str | AbstractSet[str], key: str
+) -> tuple[str, str | AbstractSet[str]]:
+    # PEP 685 - Comparison of extra names for optional distribution dependencies
+    # https://peps.python.org/pep-0685/
+    # > When comparing extra names, tools MUST normalize the names being
+    # > compared using the semantics outlined in PEP 503 for names
+    if key == "extra":
+        assert isinstance(rhs, str), "extra value must be a string"
+        # Both sides are normalized at this point already
+        return (lhs, rhs)
+    if key in MARKERS_ALLOWING_SET:
+        if isinstance(rhs, str):  # pragma: no cover
+            return (canonicalize_name(lhs), canonicalize_name(rhs))
+        else:
+            return (canonicalize_name(lhs), {canonicalize_name(v) for v in rhs})
+
+    # other environment markers don't have such standards
+    return lhs, rhs
+
+
+def _evaluate_markers(
+    markers: MarkerList, environment: dict[str, str | AbstractSet[str]]
+) -> bool:
+    groups: list[list[bool]] = [[]]
+
+    for marker in markers:
+        if isinstance(marker, list):
+            groups[-1].append(_evaluate_markers(marker, environment))
+        elif isinstance(marker, tuple):
+            lhs, op, rhs = marker
+
+            if isinstance(lhs, Variable):
+                environment_key = lhs.value
+                lhs_value = environment[environment_key]
+                rhs_value = rhs.value
+            else:
+                lhs_value = lhs.value
+                environment_key = rhs.value
+                rhs_value = environment[environment_key]
+
+            assert isinstance(lhs_value, str), "lhs must be a string"
+            lhs_value, rhs_value = _normalize(lhs_value, rhs_value, key=environment_key)
+            groups[-1].append(_eval_op(lhs_value, op, rhs_value, key=environment_key))
+        elif marker == "or":
+            groups.append([])
+        elif marker == "and":
+            pass
+        else:  # pragma: nocover
+            raise TypeError(f"Unexpected marker {marker!r}")
+
+    return any(all(item) for item in groups)
+
+
+def _format_full_version(info: sys._version_info) -> str:
+    version = f"{info.major}.{info.minor}.{info.micro}"
+    kind = info.releaselevel
+    if kind != "final":
+        version += kind[0] + str(info.serial)
+    return version
+
+
+def default_environment() -> Environment:
+    """Return the default marker environment for the current Python process.
+
+    This is the base environment used by :meth:`Marker.evaluate`.
+    """
+    iver = _format_full_version(sys.implementation.version)
+    implementation_name = sys.implementation.name
+    return {
+        "implementation_name": implementation_name,
+        "implementation_version": iver,
+        "os_name": os.name,
+        "platform_machine": platform.machine(),
+        "platform_release": platform.release(),
+        "platform_system": platform.system(),
+        "platform_version": platform.version(),
+        "python_full_version": platform.python_version(),
+        "platform_python_implementation": platform.python_implementation(),
+        "python_version": ".".join(platform.python_version_tuple()[:2]),
+        "sys_platform": sys.platform,
+    }
+
+
+class Marker:
+    """Represents a parsed dependency marker expression.
+
+    Marker expressions are parsed according to the
+    :ref:`specification of dependency specifiers <pypug:dependency-specifiers>`.
+
+    :param marker: The string representation of a marker expression.
+    :raises InvalidMarker: If ``marker`` cannot be parsed.
+
+    Instances are safe to serialize with :mod:`pickle`. They use a stable
+    format so the same pickle can be loaded in future packaging releases.
+
+    .. versionchanged:: 26.2
+
+        Added a stable pickle format. Pickles created with packaging 26.2+ can
+        be unpickled with future releases.  Backward compatibility with pickles
+        from packaging < 26.2 is supported but may be removed in a future
+        release.
+    """
+
+    __slots__ = ("_markers",)
+
+    def __init__(self, marker: str) -> None:
+        # Note: We create a Marker object without calling this constructor in
+        #       packaging.requirements.Requirement. If any additional logic is
+        #       added here, make sure to mirror/adapt Requirement.
+
+        # If this fails and throws an error, the repr still expects _markers to
+        # be defined.
+        self._markers: MarkerList = []
+
+        try:
+            self._markers = _normalize_extra_values(_parse_marker(marker))
+            # The attribute `_markers` can be described in terms of a recursive type:
+            # MarkerList = List[Union[Tuple[Node, ...], str, MarkerList]]
+            #
+            # For example, the following expression:
+            # python_version > "3.6" or (python_version == "3.6" and os_name == "unix")
+            #
+            # is parsed into:
+            # [
+            #     (<Variable('python_version')>, <Op('>')>, <Value('3.6')>),
+            #     'and',
+            #     [
+            #         (<Variable('python_version')>, <Op('==')>, <Value('3.6')>),
+            #         'or',
+            #         (<Variable('os_name')>, <Op('==')>, <Value('unix')>)
+            #     ]
+            # ]
+        except ParserSyntaxError as e:
+            raise InvalidMarker(str(e)) from e
+
+    @classmethod
+    def _from_markers(cls, markers: MarkerList) -> Marker:
+        """Create a Marker instance from a pre-parsed marker tree.
+
+        This avoids re-parsing serialised marker strings when combining markers.
+        """
+        new = cls.__new__(cls)
+        new._markers = markers
+        return new
+
+    def __str__(self) -> str:
+        return _format_marker(self._markers)
+
+    def __repr__(self) -> str:
+        return f"<{self.__class__.__name__}({str(self)!r})>"
+
+    def __hash__(self) -> int:
+        return hash(str(self))
+
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, Marker):
+            return NotImplemented
+
+        return str(self) == str(other)
+
+    def __getstate__(self) -> str:
+        # Return the marker expression string for compactness and stability.
+        # Internal Node objects are excluded; the string is re-parsed on load.
+        return str(self)
+
+    def __setstate__(self, state: object) -> None:
+        if isinstance(state, str):
+            # New format (26.2+): just the marker expression string.
+            try:
+                self._markers = _normalize_extra_values(_parse_marker(state))
+            except ParserSyntaxError as exc:
+                raise TypeError(f"Cannot restore Marker from {state!r}") from exc
+            return
+        if isinstance(state, dict) and "_markers" in state:
+            # Old format (packaging <= 26.1, no __slots__): plain __dict__.
+            markers = state["_markers"]
+            if isinstance(markers, list):
+                self._markers = markers
+                return
+        if isinstance(state, tuple) and len(state) == 2:
+            # Old format (packaging <= 26.1, __slots__): (None, {slot: value}).
+            _, slot_dict = state
+            if isinstance(slot_dict, dict) and "_markers" in slot_dict:
+                markers = slot_dict["_markers"]
+                if isinstance(markers, list):
+                    self._markers = markers
+                    return
+        raise TypeError(f"Cannot restore Marker from {state!r}")
+
+    def __and__(self, other: Marker) -> Marker:
+        if not isinstance(other, Marker):
+            return NotImplemented
+        return self._from_markers([self._markers, "and", other._markers])
+
+    def __or__(self, other: Marker) -> Marker:
+        if not isinstance(other, Marker):
+            return NotImplemented
+        return self._from_markers([self._markers, "or", other._markers])
+
+    def evaluate(
+        self,
+        environment: Mapping[str, str | AbstractSet[str]] | None = None,
+        context: EvaluateContext = "metadata",
+    ) -> bool:
+        """Evaluate a marker.
+
+        Return the boolean from evaluating this marker against the environment.
+        The environment is determined from the current Python process unless
+        passed in explicitly.
+
+        :param environment: Mapping containing keys and values to override the
+           detected environment.
+        :param EvaluateContext context: The context in which the marker is
+            evaluated, which influences what marker names are considered valid.
+            Accepted values are ``"metadata"`` (for core metadata; default),
+            ``"lock_file"``, and ``"requirement"`` (i.e. all other situations).
+        :raises UndefinedComparison: If the marker uses a comparison on values
+            that are not valid versions per the :ref:`specification of version
+            specifiers <pypug:version-specifiers>`.
+        :raises UndefinedEnvironmentName: If the marker references a value that
+            is missing from the evaluation environment.
+        :returns: ``True`` if the marker matches, otherwise ``False``.
+
+        """
+        current_environment = cast(
+            "dict[str, str | AbstractSet[str]]", default_environment()
+        )
+        if context == "lock_file":
+            current_environment.update(
+                extras=frozenset(), dependency_groups=frozenset()
+            )
+        elif context == "metadata":
+            current_environment["extra"] = ""
+
+        if environment is not None:
+            current_environment.update(environment)
+            if "extra" in current_environment:
+                # The API used to allow setting extra to None. We need to handle
+                # this case for backwards compatibility. Also skip running
+                # normalize name if extra is empty.
+                extra = cast("str | None", current_environment["extra"])
+                current_environment["extra"] = canonicalize_name(extra) if extra else ""
+
+        return _evaluate_markers(
+            self._markers, _repair_python_full_version(current_environment)
+        )
+
+
+def _repair_python_full_version(
+    env: dict[str, str | AbstractSet[str]],
+) -> dict[str, str | AbstractSet[str]]:
+    """
+    Work around platform.python_version() returning something that is not PEP 440
+    compliant for non-tagged Python builds.
+    """
+    python_full_version = cast("str", env["python_full_version"])
+    if python_full_version.endswith("+"):
+        env["python_full_version"] = f"{python_full_version}local"
+    return env

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/metadata.py

@@ -0,0 +1,964 @@
+from __future__ import annotations
+
+import email.header
+import email.message
+import email.parser
+import email.policy
+import keyword
+import pathlib
+import typing
+from typing import (
+    Any,
+    Callable,
+    Generic,
+    Literal,
+    TypedDict,
+    cast,
+)
+
+from . import licenses, requirements, specifiers, utils
+from . import version as version_module
+from .errors import ExceptionGroup, _ErrorCollector
+
+if typing.TYPE_CHECKING:
+    from .licenses import NormalizedLicenseExpression
+
+T = typing.TypeVar("T")
+
+
+__all__ = [
+    "ExceptionGroup",  # Keep this for a bit (makes mypy happy w/ 26.0 compat)
+    "InvalidMetadata",
+    "Metadata",
+    "RFC822Message",
+    "RFC822Policy",
+    "RawMetadata",
+    "parse_email",
+]
+
+
+def __dir__() -> list[str]:
+    return __all__
+
+
+class InvalidMetadata(ValueError):
+    """A metadata field contains invalid data."""
+
+    field: str
+    """The name of the field that contains invalid data."""
+
+    def __init__(self, field: str, message: str) -> None:
+        self.field = field
+        super().__init__(message)
+
+
+# The RawMetadata class attempts to make as few assumptions about the underlying
+# serialization formats as possible. The idea is that as long as a serialization
+# formats offer some very basic primitives in *some* way then we can support
+# serializing to and from that format.
+class RawMetadata(TypedDict, total=False):
+    """A dictionary of raw core metadata.
+
+    Each field in core metadata maps to a key of this dictionary (when data is
+    provided). The key is lower-case and underscores are used instead of dashes
+    compared to the equivalent core metadata field. Any core metadata field that
+    can be specified multiple times or can hold multiple values in a single
+    field have a key with a plural name. See :class:`Metadata` whose attributes
+    match the keys of this dictionary.
+
+    Core metadata fields that can be specified multiple times are stored as a
+    list or dict depending on which is appropriate for the field. Any fields
+    which hold multiple values in a single field are stored as a list. All fields
+    are considered optional.
+    """
+
+    # Metadata 1.0 - PEP 241
+    metadata_version: str
+    name: str
+    version: str
+    platforms: list[str]
+    summary: str
+    description: str
+    keywords: list[str]
+    home_page: str
+    author: str
+    author_email: str
+    license: str
+
+    # Metadata 1.1 - PEP 314
+    supported_platforms: list[str]
+    download_url: str
+    classifiers: list[str]
+    requires: list[str]
+    provides: list[str]
+    obsoletes: list[str]
+
+    # Metadata 1.2 - PEP 345
+    maintainer: str
+    maintainer_email: str
+    requires_dist: list[str]
+    provides_dist: list[str]
+    obsoletes_dist: list[str]
+    requires_python: str
+    requires_external: list[str]
+    project_urls: dict[str, str]
+
+    # Metadata 2.0
+    # PEP 426 attempted to completely revamp the metadata format
+    # but got stuck without ever being able to build consensus on
+    # it and ultimately ended up withdrawn.
+    #
+    # However, a number of tools had started emitting METADATA with
+    # `2.0` Metadata-Version, so for historical reasons, this version
+    # was skipped.
+
+    # Metadata 2.1 - PEP 566
+    description_content_type: str
+    provides_extra: list[str]
+
+    # Metadata 2.2 - PEP 643
+    dynamic: list[str]
+
+    # Metadata 2.3 - PEP 685
+    # No new fields were added in PEP 685, just some edge case were
+    # tightened up to provide better interoperability.
+
+    # Metadata 2.4 - PEP 639
+    license_expression: str
+    license_files: list[str]
+
+    # Metadata 2.5 - PEP 794
+    import_names: list[str]
+    import_namespaces: list[str]
+
+
+# 'keywords' is special as it's a string in the core metadata spec, but we
+# represent it as a list.
+_STRING_FIELDS = {
+    "author",
+    "author_email",
+    "description",
+    "description_content_type",
+    "download_url",
+    "home_page",
+    "license",
+    "license_expression",
+    "maintainer",
+    "maintainer_email",
+    "metadata_version",
+    "name",
+    "requires_python",
+    "summary",
+    "version",
+}
+
+_LIST_FIELDS = {
+    "classifiers",
+    "dynamic",
+    "license_files",
+    "obsoletes",
+    "obsoletes_dist",
+    "platforms",
+    "provides",
+    "provides_dist",
+    "provides_extra",
+    "requires",
+    "requires_dist",
+    "requires_external",
+    "supported_platforms",
+    "import_names",
+    "import_namespaces",
+}
+
+_DICT_FIELDS = {
+    "project_urls",
+}
+
+
+def _parse_keywords(data: str) -> list[str]:
+    """Split a string of comma-separated keywords into a list of keywords."""
+    return [k.strip() for k in data.split(",")]
+
+
+def _parse_project_urls(data: list[str]) -> dict[str, str]:
+    """Parse a list of label/URL string pairings separated by a comma."""
+    urls = {}
+    for pair in data:
+        # Our logic is slightly tricky here as we want to try and do
+        # *something* reasonable with malformed data.
+        #
+        # The main thing that we have to worry about, is data that does
+        # not have a ',' at all to split the label from the Value. There
+        # isn't a singular right answer here, and we will fail validation
+        # later on (if the caller is validating) so it doesn't *really*
+        # matter, but since the missing value has to be an empty str
+        # and our return value is dict[str, str], if we let the key
+        # be the missing value, then they'd have multiple '' values that
+        # overwrite each other in a accumulating dict.
+        #
+        # The other potential issue is that it's possible to have the
+        # same label multiple times in the metadata, with no solid "right"
+        # answer with what to do in that case. As such, we'll do the only
+        # thing we can, which is treat the field as unparsable and add it
+        # to our list of unparsed fields.
+        #
+        # TODO: The spec doesn't say anything about if the keys should be
+        #       considered case sensitive or not... logically they should
+        #       be case-preserving and case-insensitive, but doing that
+        #       would open up more cases where we might have duplicate
+        #       entries.
+        label, _, url = (s.strip() for s in pair.partition(","))
+
+        if label in urls:
+            # The label already exists in our set of urls, so this field
+            # is unparsable, and we can just add the whole thing to our
+            # unparsable data and stop processing it.
+            raise KeyError("duplicate labels in project urls")
+        urls[label] = url
+
+    return urls
+
+
+def _get_payload(msg: email.message.Message, source: bytes | str) -> str:
+    """Get the body of the message."""
+    # If our source is a str, then our caller has managed encodings for us,
+    # and we don't need to deal with it.
+    if isinstance(source, str):
+        payload = msg.get_payload()
+        assert isinstance(payload, str)
+        return payload
+    # If our source is a bytes, then we're managing the encoding and we need
+    # to deal with it.
+    else:
+        bpayload = msg.get_payload(decode=True)
+        assert isinstance(bpayload, bytes)
+        try:
+            return bpayload.decode("utf8", "strict")
+        except UnicodeDecodeError as exc:
+            raise ValueError("payload in an invalid encoding") from exc
+
+
+# The various parse_FORMAT functions here are intended to be as lenient as
+# possible in their parsing, while still returning a correctly typed
+# RawMetadata.
+#
+# To aid in this, we also generally want to do as little touching of the
+# data as possible, except where there are possibly some historic holdovers
+# that make valid data awkward to work with.
+#
+# While this is a lower level, intermediate format than our ``Metadata``
+# class, some light touch ups can make a massive difference in usability.
+
+# Map METADATA fields to RawMetadata.
+_EMAIL_TO_RAW_MAPPING = {
+    "author": "author",
+    "author-email": "author_email",
+    "classifier": "classifiers",
+    "description": "description",
+    "description-content-type": "description_content_type",
+    "download-url": "download_url",
+    "dynamic": "dynamic",
+    "home-page": "home_page",
+    "import-name": "import_names",
+    "import-namespace": "import_namespaces",
+    "keywords": "keywords",
+    "license": "license",
+    "license-expression": "license_expression",
+    "license-file": "license_files",
+    "maintainer": "maintainer",
+    "maintainer-email": "maintainer_email",
+    "metadata-version": "metadata_version",
+    "name": "name",
+    "obsoletes": "obsoletes",
+    "obsoletes-dist": "obsoletes_dist",
+    "platform": "platforms",
+    "project-url": "project_urls",
+    "provides": "provides",
+    "provides-dist": "provides_dist",
+    "provides-extra": "provides_extra",
+    "requires": "requires",
+    "requires-dist": "requires_dist",
+    "requires-external": "requires_external",
+    "requires-python": "requires_python",
+    "summary": "summary",
+    "supported-platform": "supported_platforms",
+    "version": "version",
+}
+_RAW_TO_EMAIL_MAPPING = {raw: email for email, raw in _EMAIL_TO_RAW_MAPPING.items()}
+
+
+# This class is for writing RFC822 messages
+class RFC822Policy(email.policy.EmailPolicy):
+    """
+    This is :class:`email.policy.EmailPolicy`, but with a simple ``header_store_parse``
+    implementation that handles multi-line values, and some nice defaults.
+    """
+
+    utf8 = True
+    mangle_from_ = False
+    max_line_length = 0
+
+    def header_store_parse(self, name: str, value: str) -> tuple[str, str]:
+        size = len(name) + 2
+        value = value.replace("\n", "\n" + " " * size)
+        return (name, value)
+
+
+# This class is for writing RFC822 messages
+class RFC822Message(email.message.EmailMessage):
+    """
+    This is :class:`email.message.EmailMessage` with two small changes: it defaults to
+    our `RFC822Policy`, and it correctly writes unicode when being called
+    with `bytes()`.
+    """
+
+    def __init__(self) -> None:
+        super().__init__(policy=RFC822Policy())
+
+    def as_bytes(
+        self, unixfrom: bool = False, policy: email.policy.Policy | None = None
+    ) -> bytes:
+        """
+        Return the bytes representation of the message.
+
+        This handles unicode encoding.
+        """
+        return self.as_string(unixfrom, policy=policy).encode("utf-8")
+
+
+def parse_email(data: bytes | str) -> tuple[RawMetadata, dict[str, list[str]]]:
+    """Parse a distribution's metadata stored as email headers (e.g. from ``METADATA``).
+
+    This function returns a two-item tuple of dicts. The first dict is of
+    recognized fields from the core metadata specification. Fields that can be
+    parsed and translated into Python's built-in types are converted
+    appropriately. All other fields are left as-is. Fields that are allowed to
+    appear multiple times are stored as lists.
+
+    The second dict contains all other fields from the metadata. This includes
+    any unrecognized fields. It also includes any fields which are expected to
+    be parsed into a built-in type but were not formatted appropriately. Finally,
+    any fields that are expected to appear only once but are repeated are
+    included in this dict.
+
+    """
+    raw: dict[str, str | list[str] | dict[str, str]] = {}
+    unparsed: dict[str, list[str]] = {}
+
+    if isinstance(data, str):
+        parsed = email.parser.Parser(policy=email.policy.compat32).parsestr(data)
+    else:
+        parsed = email.parser.BytesParser(policy=email.policy.compat32).parsebytes(data)
+
+    # We have to wrap parsed.keys() in a set, because in the case of multiple
+    # values for a key (a list), the key will appear multiple times in the
+    # list of keys, but we're avoiding that by using get_all().
+    for name_with_case in frozenset(parsed.keys()):
+        # Header names in RFC are case insensitive, so we'll normalize to all
+        # lower case to make comparisons easier.
+        name = name_with_case.lower()
+
+        # We use get_all() here, even for fields that aren't multiple use,
+        # because otherwise someone could have e.g. two Name fields, and we
+        # would just silently ignore it rather than doing something about it.
+        headers = parsed.get_all(name) or []
+
+        # The way the email module works when parsing bytes is that it
+        # unconditionally decodes the bytes as ascii using the surrogateescape
+        # handler. When you pull that data back out (such as with get_all() ),
+        # it looks to see if the str has any surrogate escapes, and if it does
+        # it wraps it in a Header object instead of returning the string.
+        #
+        # As such, we'll look for those Header objects, and fix up the encoding.
+        value = []
+        # Flag if we have run into any issues processing the headers, thus
+        # signalling that the data belongs in 'unparsed'.
+        valid_encoding = True
+        for h in headers:
+            # It's unclear if this can return more types than just a Header or
+            # a str, so we'll just assert here to make sure.
+            assert isinstance(h, (email.header.Header, str))
+
+            # If it's a header object, we need to do our little dance to get
+            # the real data out of it. In cases where there is invalid data
+            # we're going to end up with mojibake, but there's no obvious, good
+            # way around that without reimplementing parts of the Header object
+            # ourselves.
+            #
+            # That should be fine since, if mojibacked happens, this key is
+            # going into the unparsed dict anyways.
+            if isinstance(h, email.header.Header):
+                # The Header object stores it's data as chunks, and each chunk
+                # can be independently encoded, so we'll need to check each
+                # of them.
+                chunks: list[tuple[bytes, str | None]] = []
+                for binary, _encoding in email.header.decode_header(h):
+                    try:
+                        binary.decode("utf8", "strict")
+                    except UnicodeDecodeError:
+                        # Enable mojibake.
+                        encoding = "latin1"
+                        valid_encoding = False
+                    else:
+                        encoding = "utf8"
+                    chunks.append((binary, encoding))
+
+                # Turn our chunks back into a Header object, then let that
+                # Header object do the right thing to turn them into a
+                # string for us.
+                value.append(str(email.header.make_header(chunks)))
+            # This is already a string, so just add it.
+            else:
+                value.append(h)
+
+        # We've processed all of our values to get them into a list of str,
+        # but we may have mojibake data, in which case this is an unparsed
+        # field.
+        if not valid_encoding:
+            unparsed[name] = value
+            continue
+
+        raw_name = _EMAIL_TO_RAW_MAPPING.get(name)
+        if raw_name is None:
+            # This is a bit of a weird situation, we've encountered a key that
+            # we don't know what it means, so we don't know whether it's meant
+            # to be a list or not.
+            #
+            # Since we can't really tell one way or another, we'll just leave it
+            # as a list, even though it may be a single item list, because that's
+            # what makes the most sense for email headers.
+            unparsed[name] = value
+            continue
+
+        # If this is one of our string fields, then we'll check to see if our
+        # value is a list of a single item. If it is then we'll assume that
+        # it was emitted as a single string, and unwrap the str from inside
+        # the list.
+        #
+        # If it's any other kind of data, then we haven't the faintest clue
+        # what we should parse it as, and we have to just add it to our list
+        # of unparsed stuff.
+        if raw_name in _STRING_FIELDS and len(value) == 1:
+            raw[raw_name] = value[0]
+        # If this is import_names, we need to special case the empty field
+        # case, which converts to an empty list instead of None. We can't let
+        # the empty case slip through, as it will fail validation.
+        elif raw_name == "import_names" and value == [""]:
+            raw[raw_name] = []
+        # If this is one of our list of string fields, then we can just assign
+        # the value, since email *only* has strings, and our get_all() call
+        # above ensures that this is a list.
+        elif raw_name in _LIST_FIELDS:
+            raw[raw_name] = value
+        # Special Case: Keywords
+        # The keywords field is implemented in the metadata spec as a str,
+        # but it conceptually is a list of strings, and is serialized using
+        # ", ".join(keywords), so we'll do some light data massaging to turn
+        # this into what it logically is.
+        elif raw_name == "keywords" and len(value) == 1:
+            raw[raw_name] = _parse_keywords(value[0])
+        # Special Case: Project-URL
+        # The project urls is implemented in the metadata spec as a list of
+        # specially-formatted strings that represent a key and a value, which
+        # is fundamentally a mapping, however the email format doesn't support
+        # mappings in a sane way, so it was crammed into a list of strings
+        # instead.
+        #
+        # We will do a little light data massaging to turn this into a map as
+        # it logically should be.
+        elif raw_name == "project_urls":
+            try:
+                raw[raw_name] = _parse_project_urls(value)
+            except KeyError:
+                unparsed[name] = value
+        # Nothing that we've done has managed to parse this, so it'll just
+        # throw it in our unparsable data and move on.
+        else:
+            unparsed[name] = value
+
+    # We need to support getting the Description from the message payload in
+    # addition to getting it from the the headers. This does mean, though, there
+    # is the possibility of it being set both ways, in which case we put both
+    # in 'unparsed' since we don't know which is right.
+    try:
+        payload = _get_payload(parsed, data)
+    except ValueError:
+        unparsed.setdefault("description", []).append(
+            parsed.get_payload(decode=isinstance(data, bytes))  # type: ignore[call-overload]
+        )
+    else:
+        if payload:
+            # Check to see if we've already got a description, if so then both
+            # it, and this body move to unparsable.
+            if "description" in raw:
+                description_header = cast("str", raw.pop("description"))
+                unparsed.setdefault("description", []).extend(
+                    [description_header, payload]
+                )
+            elif "description" in unparsed:
+                unparsed["description"].append(payload)
+            else:
+                raw["description"] = payload
+
+    # We need to cast our `raw` to a metadata, because a TypedDict only support
+    # literal key names, but we're computing our key names on purpose, but the
+    # way this function is implemented, our `TypedDict` can only have valid key
+    # names.
+    return cast("RawMetadata", raw), unparsed
+
+
+_NOT_FOUND = object()
+
+
+# Keep the two values in sync.
+_VALID_METADATA_VERSIONS = ["1.0", "1.1", "1.2", "2.1", "2.2", "2.3", "2.4", "2.5"]
+_MetadataVersion = Literal["1.0", "1.1", "1.2", "2.1", "2.2", "2.3", "2.4", "2.5"]
+
+_REQUIRED_ATTRS = frozenset(["metadata_version", "name", "version"])
+
+
+class _Validator(Generic[T]):
+    """Validate a metadata field.
+
+    All _process_*() methods correspond to a core metadata field. The method is
+    called with the field's raw value. If the raw value is valid it is returned
+    in its "enriched" form (e.g. ``version.Version`` for the ``Version`` field).
+    If the raw value is invalid, :exc:`InvalidMetadata` is raised (with a cause
+    as appropriate).
+    """
+
+    name: str
+    raw_name: str
+    added: _MetadataVersion
+
+    def __init__(
+        self,
+        *,
+        added: _MetadataVersion = "1.0",
+    ) -> None:
+        self.added = added
+
+    def __set_name__(self, _owner: Metadata, name: str) -> None:
+        self.name = name
+        self.raw_name = _RAW_TO_EMAIL_MAPPING[name]
+
+    def __get__(self, instance: Metadata, _owner: type[Metadata]) -> T:
+        # With Python 3.8, the caching can be replaced with functools.cached_property().
+        # No need to check the cache as attribute lookup will resolve into the
+        # instance's __dict__ before __get__ is called.
+        cache = instance.__dict__
+        value = instance._raw.get(self.name)
+
+        # To make the _process_* methods easier, we'll check if the value is None
+        # and if this field is NOT a required attribute, and if both of those
+        # things are true, we'll skip the the converter. This will mean that the
+        # converters never have to deal with the None union.
+        if self.name in _REQUIRED_ATTRS or value is not None:
+            try:
+                converter: Callable[[Any], T] = getattr(self, f"_process_{self.name}")
+            except AttributeError:
+                pass
+            else:
+                value = converter(value)
+
+        cache[self.name] = value
+        try:
+            del instance._raw[self.name]  # type: ignore[misc]
+        except KeyError:
+            pass
+
+        return cast("T", value)
+
+    def _invalid_metadata(
+        self, msg: str, cause: Exception | None = None
+    ) -> InvalidMetadata:
+        exc = InvalidMetadata(
+            self.raw_name, msg.format_map({"field": repr(self.raw_name)})
+        )
+        exc.__cause__ = cause
+        return exc
+
+    def _process_metadata_version(self, value: str) -> _MetadataVersion:
+        # Implicitly makes Metadata-Version required.
+        if value not in _VALID_METADATA_VERSIONS:
+            raise self._invalid_metadata(f"{value!r} is not a valid metadata version")
+        return cast("_MetadataVersion", value)
+
+    def _process_name(self, value: str) -> str:
+        if not value:
+            raise self._invalid_metadata("{field} is a required field")
+        # Validate the name as a side-effect.
+        try:
+            utils.canonicalize_name(value, validate=True)
+        except utils.InvalidName as exc:
+            raise self._invalid_metadata(
+                f"{value!r} is invalid for {{field}}", cause=exc
+            ) from exc
+        else:
+            return value
+
+    def _process_version(self, value: str) -> version_module.Version:
+        if not value:
+            raise self._invalid_metadata("{field} is a required field")
+        try:
+            return version_module.parse(value)
+        except version_module.InvalidVersion as exc:
+            raise self._invalid_metadata(
+                f"{value!r} is invalid for {{field}}", cause=exc
+            ) from exc
+
+    def _process_summary(self, value: str) -> str:
+        """Check the field contains no newlines."""
+        if "\n" in value:
+            raise self._invalid_metadata("{field} must be a single line")
+        return value
+
+    def _process_description_content_type(self, value: str) -> str:
+        content_types = {"text/plain", "text/x-rst", "text/markdown"}
+        message = email.message.EmailMessage()
+        message["content-type"] = value
+
+        content_type, parameters = (
+            # Defaults to `text/plain` if parsing failed.
+            message.get_content_type().lower(),
+            message["content-type"].params,
+        )
+        # Check if content-type is valid or defaulted to `text/plain` and thus was
+        # not parseable.
+        if content_type not in content_types or content_type not in value.lower():
+            raise self._invalid_metadata(
+                f"{{field}} must be one of {list(content_types)}, not {value!r}"
+            )
+
+        charset = parameters.get("charset", "UTF-8")
+        if charset != "UTF-8":
+            raise self._invalid_metadata(
+                f"{{field}} can only specify the UTF-8 charset, not {charset!r}"
+            )
+
+        markdown_variants = {"GFM", "CommonMark"}
+        variant = parameters.get("variant", "GFM")  # Use an acceptable default.
+        if content_type == "text/markdown" and variant not in markdown_variants:
+            raise self._invalid_metadata(
+                f"valid Markdown variants for {{field}} are {list(markdown_variants)}, "
+                f"not {variant!r}",
+            )
+        return value
+
+    def _process_dynamic(self, value: list[str]) -> list[str]:
+        for dynamic_field in map(str.lower, value):
+            if dynamic_field in {"name", "version", "metadata-version"}:
+                raise self._invalid_metadata(
+                    f"{dynamic_field!r} is not allowed as a dynamic field"
+                )
+            elif dynamic_field not in _EMAIL_TO_RAW_MAPPING:
+                raise self._invalid_metadata(
+                    f"{dynamic_field!r} is not a valid dynamic field"
+                )
+        return list(map(str.lower, value))
+
+    def _process_provides_extra(
+        self,
+        value: list[str],
+    ) -> list[utils.NormalizedName]:
+        normalized_names = []
+        try:
+            for name in value:
+                normalized_names.append(utils.canonicalize_name(name, validate=True))
+        except utils.InvalidName as exc:
+            raise self._invalid_metadata(
+                f"{name!r} is invalid for {{field}}", cause=exc
+            ) from exc
+        else:
+            return normalized_names
+
+    def _process_requires_python(self, value: str) -> specifiers.SpecifierSet:
+        try:
+            return specifiers.SpecifierSet(value)
+        except specifiers.InvalidSpecifier as exc:
+            raise self._invalid_metadata(
+                f"{value!r} is invalid for {{field}}", cause=exc
+            ) from exc
+
+    def _process_requires_dist(
+        self,
+        value: list[str],
+    ) -> list[requirements.Requirement]:
+        reqs = []
+        try:
+            for req in value:
+                reqs.append(requirements.Requirement(req))
+        except requirements.InvalidRequirement as exc:
+            raise self._invalid_metadata(
+                f"{req!r} is invalid for {{field}}", cause=exc
+            ) from exc
+        else:
+            return reqs
+
+    def _process_license_expression(self, value: str) -> NormalizedLicenseExpression:
+        try:
+            return licenses.canonicalize_license_expression(value)
+        except ValueError as exc:
+            raise self._invalid_metadata(
+                f"{value!r} is invalid for {{field}}", cause=exc
+            ) from exc
+
+    def _process_license_files(self, value: list[str]) -> list[str]:
+        paths = []
+        for path in value:
+            if ".." in path:
+                raise self._invalid_metadata(
+                    f"{path!r} is invalid for {{field}}, "
+                    "parent directory indicators are not allowed"
+                )
+            if "*" in path:
+                raise self._invalid_metadata(
+                    f"{path!r} is invalid for {{field}}, paths must be resolved"
+                )
+            if (
+                pathlib.PurePosixPath(path).is_absolute()
+                or pathlib.PureWindowsPath(path).is_absolute()
+            ):
+                raise self._invalid_metadata(
+                    f"{path!r} is invalid for {{field}}, paths must be relative"
+                )
+            if pathlib.PureWindowsPath(path).as_posix() != path:
+                raise self._invalid_metadata(
+                    f"{path!r} is invalid for {{field}}, paths must use '/' delimiter"
+                )
+            paths.append(path)
+        return paths
+
+    def _process_import_names(self, value: list[str]) -> list[str]:
+        for import_name in value:
+            name, semicolon, private = import_name.partition(";")
+            name = name.rstrip()
+            for identifier in name.split("."):
+                if not identifier.isidentifier():
+                    raise self._invalid_metadata(
+                        f"{name!r} is invalid for {{field}}; "
+                        f"{identifier!r} is not a valid identifier"
+                    )
+                elif keyword.iskeyword(identifier):
+                    raise self._invalid_metadata(
+                        f"{name!r} is invalid for {{field}}; "
+                        f"{identifier!r} is a keyword"
+                    )
+            if semicolon and private.lstrip() != "private":
+                raise self._invalid_metadata(
+                    f"{import_name!r} is invalid for {{field}}; "
+                    "the only valid option is 'private'"
+                )
+        return value
+
+    _process_import_namespaces = _process_import_names
+
+
+class Metadata:
+    """Representation of distribution metadata.
+
+    Compared to :class:`RawMetadata`, this class provides objects representing
+    metadata fields instead of only using built-in types. Any invalid metadata
+    will cause :exc:`InvalidMetadata` to be raised (with a
+    :py:attr:`~BaseException.__cause__` attribute as appropriate).
+    """
+
+    _raw: RawMetadata
+
+    @classmethod
+    def from_raw(cls, data: RawMetadata, *, validate: bool = True) -> Metadata:
+        """Create an instance from :class:`RawMetadata`.
+
+        If *validate* is true, all metadata will be validated. All exceptions
+        related to validation will be gathered and raised as an :class:`ExceptionGroup`.
+        """
+        ins = cls()
+        ins._raw = data.copy()  # Mutations occur due to caching enriched values.
+
+        if validate:
+            collector = _ErrorCollector()
+            metadata_version = None
+            with collector.collect(InvalidMetadata):
+                metadata_version = ins.metadata_version
+                metadata_age = _VALID_METADATA_VERSIONS.index(metadata_version)
+
+            # Make sure to check for the fields that are present, the required
+            # fields (so their absence can be reported).
+            fields_to_check = frozenset(ins._raw) | _REQUIRED_ATTRS
+            # Remove fields that have already been checked.
+            fields_to_check -= {"metadata_version"}
+
+            for key in fields_to_check:
+                try:
+                    if metadata_version:
+                        # Can't use getattr() as that triggers descriptor protocol which
+                        # will fail due to no value for the instance argument.
+                        try:
+                            field_metadata_version = cls.__dict__[key].added
+                        except KeyError:
+                            exc = InvalidMetadata(key, f"unrecognized field: {key!r}")
+                            collector.error(exc)
+                            continue
+                        field_age = _VALID_METADATA_VERSIONS.index(
+                            field_metadata_version
+                        )
+                        if field_age > metadata_age:
+                            field = _RAW_TO_EMAIL_MAPPING[key]
+                            exc = InvalidMetadata(
+                                field,
+                                f"{field} introduced in metadata version "
+                                f"{field_metadata_version}, not {metadata_version}",
+                            )
+                            collector.error(exc)
+                            continue
+                    getattr(ins, key)
+                except InvalidMetadata as exc:
+                    collector.error(exc)
+
+            collector.finalize("invalid metadata")
+
+        return ins
+
+    @classmethod
+    def from_email(cls, data: bytes | str, *, validate: bool = True) -> Metadata:
+        """Parse metadata from email headers.
+
+        If *validate* is true, the metadata will be validated. All exceptions
+        related to validation will be gathered and raised as an :class:`ExceptionGroup`.
+        """
+        raw, unparsed = parse_email(data)
+
+        if validate:
+            with _ErrorCollector().on_exit("unparsed") as collector:
+                for unparsed_key in unparsed:
+                    if unparsed_key in _EMAIL_TO_RAW_MAPPING:
+                        message = f"{unparsed_key!r} has invalid data"
+                    else:
+                        message = f"unrecognized field: {unparsed_key!r}"
+                    collector.error(InvalidMetadata(unparsed_key, message))
+
+        try:
+            return cls.from_raw(raw, validate=validate)
+        except ExceptionGroup as exc_group:
+            raise ExceptionGroup(
+                "invalid or unparsed metadata", exc_group.exceptions
+            ) from None
+
+    metadata_version: _Validator[_MetadataVersion] = _Validator()
+    """:external:ref:`core-metadata-metadata-version`
+    (required; validated to be a valid metadata version)"""
+    # `name` is not normalized/typed to NormalizedName so as to provide access to
+    # the original/raw name.
+    name: _Validator[str] = _Validator()
+    """:external:ref:`core-metadata-name`
+    (required; validated using :func:`~packaging.utils.canonicalize_name` and its
+    *validate* parameter)"""
+    version: _Validator[version_module.Version] = _Validator()
+    """:external:ref:`core-metadata-version` (required)"""
+    dynamic: _Validator[list[str] | None] = _Validator(
+        added="2.2",
+    )
+    """:external:ref:`core-metadata-dynamic`
+    (validated against core metadata field names and lowercased)"""
+    platforms: _Validator[list[str] | None] = _Validator()
+    """:external:ref:`core-metadata-platform`"""
+    supported_platforms: _Validator[list[str] | None] = _Validator(added="1.1")
+    """:external:ref:`core-metadata-supported-platform`"""
+    summary: _Validator[str | None] = _Validator()
+    """:external:ref:`core-metadata-summary` (validated to contain no newlines)"""
+    description: _Validator[str | None] = _Validator()  # TODO 2.1: can be in body
+    """:external:ref:`core-metadata-description`"""
+    description_content_type: _Validator[str | None] = _Validator(added="2.1")
+    """:external:ref:`core-metadata-description-content-type` (validated)"""
+    keywords: _Validator[list[str] | None] = _Validator()
+    """:external:ref:`core-metadata-keywords`"""
+    home_page: _Validator[str | None] = _Validator()
+    """:external:ref:`core-metadata-home-page`"""
+    download_url: _Validator[str | None] = _Validator(added="1.1")
+    """:external:ref:`core-metadata-download-url`"""
+    author: _Validator[str | None] = _Validator()
+    """:external:ref:`core-metadata-author`"""
+    author_email: _Validator[str | None] = _Validator()
+    """:external:ref:`core-metadata-author-email`"""
+    maintainer: _Validator[str | None] = _Validator(added="1.2")
+    """:external:ref:`core-metadata-maintainer`"""
+    maintainer_email: _Validator[str | None] = _Validator(added="1.2")
+    """:external:ref:`core-metadata-maintainer-email`"""
+    license: _Validator[str | None] = _Validator()
+    """:external:ref:`core-metadata-license`"""
+    license_expression: _Validator[NormalizedLicenseExpression | None] = _Validator(
+        added="2.4"
+    )
+    """:external:ref:`core-metadata-license-expression`"""
+    license_files: _Validator[list[str] | None] = _Validator(added="2.4")
+    """:external:ref:`core-metadata-license-file`"""
+    classifiers: _Validator[list[str] | None] = _Validator(added="1.1")
+    """:external:ref:`core-metadata-classifier`"""
+    requires_dist: _Validator[list[requirements.Requirement] | None] = _Validator(
+        added="1.2"
+    )
+    """:external:ref:`core-metadata-requires-dist`"""
+    requires_python: _Validator[specifiers.SpecifierSet | None] = _Validator(
+        added="1.2"
+    )
+    """:external:ref:`core-metadata-requires-python`"""
+    # Because `Requires-External` allows for non-PEP 440 version specifiers, we
+    # don't do any processing on the values.
+    requires_external: _Validator[list[str] | None] = _Validator(added="1.2")
+    """:external:ref:`core-metadata-requires-external`"""
+    project_urls: _Validator[dict[str, str] | None] = _Validator(added="1.2")
+    """:external:ref:`core-metadata-project-url`"""
+    # PEP 685 lets us raise an error if an extra doesn't pass `Name` validation
+    # regardless of metadata version.
+    provides_extra: _Validator[list[utils.NormalizedName] | None] = _Validator(
+        added="2.1",
+    )
+    """:external:ref:`core-metadata-provides-extra`"""
+    provides_dist: _Validator[list[str] | None] = _Validator(added="1.2")
+    """:external:ref:`core-metadata-provides-dist`"""
+    obsoletes_dist: _Validator[list[str] | None] = _Validator(added="1.2")
+    """:external:ref:`core-metadata-obsoletes-dist`"""
+    import_names: _Validator[list[str] | None] = _Validator(added="2.5")
+    """:external:ref:`core-metadata-import-name`"""
+    import_namespaces: _Validator[list[str] | None] = _Validator(added="2.5")
+    """:external:ref:`core-metadata-import-namespace`"""
+    requires: _Validator[list[str] | None] = _Validator(added="1.1")
+    """``Requires`` (deprecated)"""
+    provides: _Validator[list[str] | None] = _Validator(added="1.1")
+    """``Provides`` (deprecated)"""
+    obsoletes: _Validator[list[str] | None] = _Validator(added="1.1")
+    """``Obsoletes`` (deprecated)"""
+
+    def as_rfc822(self) -> RFC822Message:
+        """
+        Return an RFC822 message with the metadata.
+        """
+        message = RFC822Message()
+        self._write_metadata(message)
+        return message
+
+    def _write_metadata(self, message: RFC822Message) -> None:
+        """
+        Return an RFC822 message with the metadata.
+        """
+        for name, validator in self.__class__.__dict__.items():
+            if isinstance(validator, _Validator) and name != "description":
+                value = getattr(self, name)
+                email_name = _RAW_TO_EMAIL_MAPPING[name]
+                if value is not None:
+                    if email_name == "project-url":
+                        for label, url in value.items():
+                            message[email_name] = f"{label}, {url}"
+                    elif email_name == "keywords":
+                        message[email_name] = ",".join(value)
+                    elif email_name == "import-name" and value == []:
+                        message[email_name] = ""
+                    elif isinstance(value, list):
+                        for item in value:
+                            message[email_name] = str(item)
+                    else:
+                        message[email_name] = str(value)
+
+        # The description is a special case because it is in the body of the message.
+        if self.description is not None:
+            message.set_payload(self.description)

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/pylock.py

@@ -0,0 +1,905 @@
+from __future__ import annotations
+
+import dataclasses
+import logging
+import re
+from collections.abc import Mapping, Sequence
+from dataclasses import dataclass
+from datetime import datetime
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Callable,
+    Protocol,
+    TypeVar,
+    cast,
+)
+from urllib.parse import urlparse
+
+from .markers import Environment, Marker, default_environment
+from .specifiers import SpecifierSet
+from .tags import create_compatible_tags_selector, sys_tags
+from .utils import (
+    NormalizedName,
+    is_normalized_name,
+    parse_sdist_filename,
+    parse_wheel_filename,
+)
+from .version import Version
+
+if TYPE_CHECKING:  # pragma: no cover
+    from collections.abc import Collection, Iterator
+    from pathlib import Path
+
+    from typing_extensions import Self
+
+    from .tags import Tag
+
+_logger = logging.getLogger(__name__)
+
+__all__ = [
+    "Package",
+    "PackageArchive",
+    "PackageDirectory",
+    "PackageSdist",
+    "PackageVcs",
+    "PackageWheel",
+    "Pylock",
+    "PylockUnsupportedVersionError",
+    "PylockValidationError",
+    "is_valid_pylock_path",
+]
+
+
+def __dir__() -> list[str]:
+    return __all__
+
+
+_T = TypeVar("_T")
+_T2 = TypeVar("_T2")
+
+
+class _FromMappingProtocol(Protocol):  # pragma: no cover
+    @classmethod
+    def _from_dict(cls, d: Mapping[str, Any]) -> Self: ...
+
+
+_FromMappingProtocolT = TypeVar("_FromMappingProtocolT", bound=_FromMappingProtocol)
+
+
+_PYLOCK_FILE_NAME_RE = re.compile(r"^pylock\.([^.]+)\.toml$")
+
+
+def is_valid_pylock_path(path: Path) -> bool:
+    """Check if the given path is a valid pylock file path."""
+    return path.name == "pylock.toml" or bool(_PYLOCK_FILE_NAME_RE.match(path.name))
+
+
+def _toml_key(key: str) -> str:
+    return key.replace("_", "-")
+
+
+def _toml_value(key: str, value: Any) -> Any:  # noqa: ANN401
+    if isinstance(value, (Version, Marker, SpecifierSet)):
+        return str(value)
+    if isinstance(value, Sequence) and key == "environments":
+        return [str(v) for v in value]
+    return value
+
+
+def _toml_dict_factory(data: list[tuple[str, Any]]) -> dict[str, Any]:
+    return {
+        _toml_key(key): _toml_value(key, value)
+        for key, value in data
+        if value is not None
+    }
+
+
+def _get(d: Mapping[str, Any], expected_type: type[_T], key: str) -> _T | None:
+    """Get a value from the dictionary and verify it's the expected type."""
+    if (value := d.get(key)) is None:
+        return None
+    if not isinstance(value, expected_type):
+        raise PylockValidationError(
+            f"Unexpected type {type(value).__name__} "
+            f"(expected {expected_type.__name__})",
+            context=key,
+        )
+    return value
+
+
+def _get_required(d: Mapping[str, Any], expected_type: type[_T], key: str) -> _T:
+    """Get a required value from the dictionary and verify it's the expected type."""
+    if (value := _get(d, expected_type, key)) is None:
+        raise _PylockRequiredKeyError(key)
+    return value
+
+
+def _get_sequence(
+    d: Mapping[str, Any], expected_item_type: type[_T], key: str
+) -> Sequence[_T] | None:
+    """Get a list value from the dictionary and verify it's the expected items type."""
+    if (value := _get(d, Sequence, key)) is None:  # type: ignore[type-abstract]
+        return None
+    if isinstance(value, (str, bytes)):
+        # special case: str and bytes are Sequences, but we want to reject it
+        raise PylockValidationError(
+            f"Unexpected type {type(value).__name__} (expected Sequence)",
+            context=key,
+        )
+    for i, item in enumerate(value):
+        if not isinstance(item, expected_item_type):
+            raise PylockValidationError(
+                f"Unexpected type {type(item).__name__} "
+                f"(expected {expected_item_type.__name__})",
+                context=f"{key}[{i}]",
+            )
+    return value
+
+
+def _get_as(
+    d: Mapping[str, Any],
+    expected_type: type[_T],
+    target_type: Callable[[_T], _T2],
+    key: str,
+) -> _T2 | None:
+    """Get a value from the dictionary, verify it's the expected type,
+    and convert to the target type.
+
+    This assumes the target_type constructor accepts the value.
+    """
+    if (value := _get(d, expected_type, key)) is None:
+        return None
+    try:
+        return target_type(value)
+    except Exception as e:
+        raise PylockValidationError(e, context=key) from e
+
+
+def _get_required_as(
+    d: Mapping[str, Any],
+    expected_type: type[_T],
+    target_type: Callable[[_T], _T2],
+    key: str,
+) -> _T2:
+    """Get a required value from the dict, verify it's the expected type,
+    and convert to the target type."""
+    if (value := _get_as(d, expected_type, target_type, key)) is None:
+        raise _PylockRequiredKeyError(key)
+    return value
+
+
+def _get_sequence_as(
+    d: Mapping[str, Any],
+    expected_item_type: type[_T],
+    target_item_type: Callable[[_T], _T2],
+    key: str,
+) -> list[_T2] | None:
+    """Get list value from dictionary and verify expected items type."""
+    if (value := _get_sequence(d, expected_item_type, key)) is None:
+        return None
+    result = []
+    try:
+        for item in value:
+            typed_item = target_item_type(item)
+            result.append(typed_item)
+    except Exception as e:
+        raise PylockValidationError(e, context=f"{key}[{len(result)}]") from e
+    return result
+
+
+def _get_object(
+    d: Mapping[str, Any], target_type: type[_FromMappingProtocolT], key: str
+) -> _FromMappingProtocolT | None:
+    """Get a dictionary value from the dictionary and convert it to a dataclass."""
+    if (value := _get(d, Mapping, key)) is None:  # type: ignore[type-abstract]
+        return None
+    try:
+        return target_type._from_dict(value)
+    except Exception as e:
+        raise PylockValidationError(e, context=key) from e
+
+
+def _get_sequence_of_objects(
+    d: Mapping[str, Any], target_item_type: type[_FromMappingProtocolT], key: str
+) -> list[_FromMappingProtocolT] | None:
+    """Get a list value from the dictionary and convert its items to a dataclass."""
+    if (value := _get_sequence(d, Mapping, key)) is None:  # type: ignore[type-abstract]
+        return None
+    result: list[_FromMappingProtocolT] = []
+    try:
+        for item in value:
+            typed_item = target_item_type._from_dict(item)
+            result.append(typed_item)
+    except Exception as e:
+        raise PylockValidationError(e, context=f"{key}[{len(result)}]") from e
+    return result
+
+
+def _get_required_sequence_of_objects(
+    d: Mapping[str, Any], target_item_type: type[_FromMappingProtocolT], key: str
+) -> Sequence[_FromMappingProtocolT]:
+    """Get a required list value from the dictionary and convert its items to a
+    dataclass."""
+    if (result := _get_sequence_of_objects(d, target_item_type, key)) is None:
+        raise _PylockRequiredKeyError(key)
+    return result
+
+
+def _validate_normalized_name(name: str) -> NormalizedName:
+    """Validate that a string is a NormalizedName."""
+    if not is_normalized_name(name):
+        raise PylockValidationError(f"Name {name!r} is not normalized")
+    return NormalizedName(name)
+
+
+def _validate_path_url(path: str | None, url: str | None) -> None:
+    if not path and not url:
+        raise PylockValidationError("path or url must be provided")
+
+
+def _path_name(path: str | None) -> str | None:
+    if not path:
+        return None
+    # If the path is relative it MAY use POSIX-style path separators explicitly
+    # for portability
+    if "/" in path:
+        return path.rsplit("/", 1)[-1]
+    elif "\\" in path:
+        return path.rsplit("\\", 1)[-1]
+    else:
+        return path
+
+
+def _url_name(url: str | None) -> str | None:
+    if not url:
+        return None
+    url_path = urlparse(url).path
+    return url_path.rsplit("/", 1)[-1]
+
+
+def _validate_hashes(hashes: Mapping[str, Any]) -> Mapping[str, Any]:
+    if not hashes:
+        raise PylockValidationError("At least one hash must be provided")
+    if not all(isinstance(hash_val, str) for hash_val in hashes.values()):
+        raise PylockValidationError("Hash values must be strings")
+    return hashes
+
+
+class PylockValidationError(Exception):
+    """Raised when when input data is not spec-compliant."""
+
+    context: str | None = None
+    message: str
+
+    def __init__(
+        self,
+        cause: str | Exception,
+        *,
+        context: str | None = None,
+    ) -> None:
+        if isinstance(cause, PylockValidationError):
+            if cause.context:
+                self.context = (
+                    f"{context}.{cause.context}" if context else cause.context
+                )
+            else:
+                self.context = context
+            self.message = cause.message
+        else:
+            self.context = context
+            self.message = str(cause)
+
+    def __str__(self) -> str:
+        if self.context:
+            return f"{self.message} in {self.context!r}"
+        return self.message
+
+
+class _PylockRequiredKeyError(PylockValidationError):
+    def __init__(self, key: str) -> None:
+        super().__init__("Missing required value", context=key)
+
+
+class PylockUnsupportedVersionError(PylockValidationError):
+    """Raised when encountering an unsupported `lock_version`."""
+
+
+class PylockSelectError(Exception):
+    """Base exception for errors raised by :meth:`Pylock.select`."""
+
+
+@dataclass(frozen=True, init=False)
+class PackageVcs:
+    type: str
+    url: str | None = None
+    path: str | None = None
+    requested_revision: str | None = None
+    commit_id: str  # type: ignore[misc]
+    subdirectory: str | None = None
+
+    def __init__(
+        self,
+        *,
+        type: str,
+        url: str | None = None,
+        path: str | None = None,
+        requested_revision: str | None = None,
+        commit_id: str,
+        subdirectory: str | None = None,
+    ) -> None:
+        # In Python 3.10+ make dataclass kw_only=True and remove __init__
+        object.__setattr__(self, "type", type)
+        object.__setattr__(self, "url", url)
+        object.__setattr__(self, "path", path)
+        object.__setattr__(self, "requested_revision", requested_revision)
+        object.__setattr__(self, "commit_id", commit_id)
+        object.__setattr__(self, "subdirectory", subdirectory)
+
+    @classmethod
+    def _from_dict(cls, d: Mapping[str, Any]) -> Self:
+        package_vcs = cls(
+            type=_get_required(d, str, "type"),
+            url=_get(d, str, "url"),
+            path=_get(d, str, "path"),
+            requested_revision=_get(d, str, "requested-revision"),
+            commit_id=_get_required(d, str, "commit-id"),
+            subdirectory=_get(d, str, "subdirectory"),
+        )
+        _validate_path_url(package_vcs.path, package_vcs.url)
+        return package_vcs
+
+
+@dataclass(frozen=True, init=False)
+class PackageDirectory:
+    path: str
+    editable: bool | None = None
+    subdirectory: str | None = None
+
+    def __init__(
+        self,
+        *,
+        path: str,
+        editable: bool | None = None,
+        subdirectory: str | None = None,
+    ) -> None:
+        # In Python 3.10+ make dataclass kw_only=True and remove __init__
+        object.__setattr__(self, "path", path)
+        object.__setattr__(self, "editable", editable)
+        object.__setattr__(self, "subdirectory", subdirectory)
+
+    @classmethod
+    def _from_dict(cls, d: Mapping[str, Any]) -> Self:
+        return cls(
+            path=_get_required(d, str, "path"),
+            editable=_get(d, bool, "editable"),
+            subdirectory=_get(d, str, "subdirectory"),
+        )
+
+
+@dataclass(frozen=True, init=False)
+class PackageArchive:
+    url: str | None = None
+    path: str | None = None
+    size: int | None = None
+    upload_time: datetime | None = None
+    hashes: Mapping[str, str]  # type: ignore[misc]
+    subdirectory: str | None = None
+
+    def __init__(
+        self,
+        *,
+        url: str | None = None,
+        path: str | None = None,
+        size: int | None = None,
+        upload_time: datetime | None = None,
+        hashes: Mapping[str, str],
+        subdirectory: str | None = None,
+    ) -> None:
+        # In Python 3.10+ make dataclass kw_only=True and remove __init__
+        object.__setattr__(self, "url", url)
+        object.__setattr__(self, "path", path)
+        object.__setattr__(self, "size", size)
+        object.__setattr__(self, "upload_time", upload_time)
+        object.__setattr__(self, "hashes", hashes)
+        object.__setattr__(self, "subdirectory", subdirectory)
+
+    @classmethod
+    def _from_dict(cls, d: Mapping[str, Any]) -> Self:
+        package_archive = cls(
+            url=_get(d, str, "url"),
+            path=_get(d, str, "path"),
+            size=_get(d, int, "size"),
+            upload_time=_get(d, datetime, "upload-time"),
+            hashes=_get_required_as(d, Mapping, _validate_hashes, "hashes"),  # type: ignore[type-abstract]
+            subdirectory=_get(d, str, "subdirectory"),
+        )
+        _validate_path_url(package_archive.path, package_archive.url)
+        return package_archive
+
+
+@dataclass(frozen=True, init=False)
+class PackageSdist:
+    name: str | None = None
+    upload_time: datetime | None = None
+    url: str | None = None
+    path: str | None = None
+    size: int | None = None
+    hashes: Mapping[str, str]  # type: ignore[misc]
+
+    def __init__(
+        self,
+        *,
+        name: str | None = None,
+        upload_time: datetime | None = None,
+        url: str | None = None,
+        path: str | None = None,
+        size: int | None = None,
+        hashes: Mapping[str, str],
+    ) -> None:
+        # In Python 3.10+ make dataclass kw_only=True and remove __init__
+        object.__setattr__(self, "name", name)
+        object.__setattr__(self, "upload_time", upload_time)
+        object.__setattr__(self, "url", url)
+        object.__setattr__(self, "path", path)
+        object.__setattr__(self, "size", size)
+        object.__setattr__(self, "hashes", hashes)
+
+    @classmethod
+    def _from_dict(cls, d: Mapping[str, Any]) -> Self:
+        package_sdist = cls(
+            name=_get(d, str, "name"),
+            upload_time=_get(d, datetime, "upload-time"),
+            url=_get(d, str, "url"),
+            path=_get(d, str, "path"),
+            size=_get(d, int, "size"),
+            hashes=_get_required_as(d, Mapping, _validate_hashes, "hashes"),  # type: ignore[type-abstract]
+        )
+        _validate_path_url(package_sdist.path, package_sdist.url)
+        return package_sdist
+
+    @property
+    def filename(self) -> str:
+        """Get the filename of the sdist."""
+        filename = self.name or _path_name(self.path) or _url_name(self.url)
+        if not filename:
+            raise PylockValidationError("Cannot determine sdist filename")
+        return filename
+
+
+@dataclass(frozen=True, init=False)
+class PackageWheel:
+    name: str | None = None
+    upload_time: datetime | None = None
+    url: str | None = None
+    path: str | None = None
+    size: int | None = None
+    hashes: Mapping[str, str]  # type: ignore[misc]
+
+    def __init__(
+        self,
+        *,
+        name: str | None = None,
+        upload_time: datetime | None = None,
+        url: str | None = None,
+        path: str | None = None,
+        size: int | None = None,
+        hashes: Mapping[str, str],
+    ) -> None:
+        # In Python 3.10+ make dataclass kw_only=True and remove __init__
+        object.__setattr__(self, "name", name)
+        object.__setattr__(self, "upload_time", upload_time)
+        object.__setattr__(self, "url", url)
+        object.__setattr__(self, "path", path)
+        object.__setattr__(self, "size", size)
+        object.__setattr__(self, "hashes", hashes)
+
+    @classmethod
+    def _from_dict(cls, d: Mapping[str, Any]) -> Self:
+        package_wheel = cls(
+            name=_get(d, str, "name"),
+            upload_time=_get(d, datetime, "upload-time"),
+            url=_get(d, str, "url"),
+            path=_get(d, str, "path"),
+            size=_get(d, int, "size"),
+            hashes=_get_required_as(d, Mapping, _validate_hashes, "hashes"),  # type: ignore[type-abstract]
+        )
+        _validate_path_url(package_wheel.path, package_wheel.url)
+        return package_wheel
+
+    @property
+    def filename(self) -> str:
+        """Get the filename of the wheel."""
+        filename = self.name or _path_name(self.path) or _url_name(self.url)
+        if not filename:
+            raise PylockValidationError("Cannot determine wheel filename")
+        return filename
+
+
+@dataclass(frozen=True, init=False)
+class Package:
+    name: NormalizedName
+    version: Version | None = None
+    marker: Marker | None = None
+    requires_python: SpecifierSet | None = None
+    dependencies: Sequence[Mapping[str, Any]] | None = None
+    vcs: PackageVcs | None = None
+    directory: PackageDirectory | None = None
+    archive: PackageArchive | None = None
+    index: str | None = None
+    sdist: PackageSdist | None = None
+    wheels: Sequence[PackageWheel] | None = None
+    attestation_identities: Sequence[Mapping[str, Any]] | None = None
+    tool: Mapping[str, Any] | None = None
+
+    def __init__(
+        self,
+        *,
+        name: NormalizedName,
+        version: Version | None = None,
+        marker: Marker | None = None,
+        requires_python: SpecifierSet | None = None,
+        dependencies: Sequence[Mapping[str, Any]] | None = None,
+        vcs: PackageVcs | None = None,
+        directory: PackageDirectory | None = None,
+        archive: PackageArchive | None = None,
+        index: str | None = None,
+        sdist: PackageSdist | None = None,
+        wheels: Sequence[PackageWheel] | None = None,
+        attestation_identities: Sequence[Mapping[str, Any]] | None = None,
+        tool: Mapping[str, Any] | None = None,
+    ) -> None:
+        # In Python 3.10+ make dataclass kw_only=True and remove __init__
+        object.__setattr__(self, "name", name)
+        object.__setattr__(self, "version", version)
+        object.__setattr__(self, "marker", marker)
+        object.__setattr__(self, "requires_python", requires_python)
+        object.__setattr__(self, "dependencies", dependencies)
+        object.__setattr__(self, "vcs", vcs)
+        object.__setattr__(self, "directory", directory)
+        object.__setattr__(self, "archive", archive)
+        object.__setattr__(self, "index", index)
+        object.__setattr__(self, "sdist", sdist)
+        object.__setattr__(self, "wheels", wheels)
+        object.__setattr__(self, "attestation_identities", attestation_identities)
+        object.__setattr__(self, "tool", tool)
+
+    @classmethod
+    def _from_dict(cls, d: Mapping[str, Any]) -> Self:
+        package = cls(
+            name=_get_required_as(d, str, _validate_normalized_name, "name"),
+            version=_get_as(d, str, Version, "version"),
+            requires_python=_get_as(d, str, SpecifierSet, "requires-python"),
+            dependencies=_get_sequence(d, Mapping, "dependencies"),  # type: ignore[type-abstract]
+            marker=_get_as(d, str, Marker, "marker"),
+            vcs=_get_object(d, PackageVcs, "vcs"),
+            directory=_get_object(d, PackageDirectory, "directory"),
+            archive=_get_object(d, PackageArchive, "archive"),
+            index=_get(d, str, "index"),
+            sdist=_get_object(d, PackageSdist, "sdist"),
+            wheels=_get_sequence_of_objects(d, PackageWheel, "wheels"),
+            attestation_identities=_get_sequence(d, Mapping, "attestation-identities"),  # type: ignore[type-abstract]
+            tool=_get(d, Mapping, "tool"),  # type: ignore[type-abstract]
+        )
+        distributions = bool(package.sdist) + len(package.wheels or [])
+        direct_urls = (
+            bool(package.vcs) + bool(package.directory) + bool(package.archive)
+        )
+        if distributions > 0 and direct_urls > 0:
+            raise PylockValidationError(
+                "None of vcs, directory, archive must be set if sdist or wheels are set"
+            )
+        if distributions == 0 and direct_urls != 1:
+            raise PylockValidationError(
+                "Exactly one of vcs, directory, archive must be set "
+                "if sdist and wheels are not set"
+            )
+        for i, wheel in enumerate(package.wheels or []):
+            try:
+                (name, version, _, _) = parse_wheel_filename(wheel.filename)
+            except Exception as e:
+                raise PylockValidationError(
+                    f"Invalid wheel filename {wheel.filename!r}",
+                    context=f"wheels[{i}]",
+                ) from e
+            if name != package.name:
+                raise PylockValidationError(
+                    f"Name in {wheel.filename!r} is not consistent with "
+                    f"package name {package.name!r}",
+                    context=f"wheels[{i}]",
+                )
+            if package.version and version != package.version:
+                raise PylockValidationError(
+                    f"Version in {wheel.filename!r} is not consistent with "
+                    f"package version {str(package.version)!r}",
+                    context=f"wheels[{i}]",
+                )
+        if package.sdist:
+            try:
+                name, version = parse_sdist_filename(package.sdist.filename)
+            except Exception as e:
+                raise PylockValidationError(
+                    f"Invalid sdist filename {package.sdist.filename!r}",
+                    context="sdist",
+                ) from e
+            if name != package.name:
+                raise PylockValidationError(
+                    f"Name in {package.sdist.filename!r} is not consistent with "
+                    f"package name {package.name!r}",
+                    context="sdist",
+                )
+            if package.version and version != package.version:
+                raise PylockValidationError(
+                    f"Version in {package.sdist.filename!r} is not consistent with "
+                    f"package version {str(package.version)!r}",
+                    context="sdist",
+                )
+        try:
+            for i, attestation_identity in enumerate(  # noqa: B007
+                package.attestation_identities or []
+            ):
+                _get_required(attestation_identity, str, "kind")
+        except Exception as e:
+            raise PylockValidationError(
+                e, context=f"attestation-identities[{i}]"
+            ) from e
+        return package
+
+    @property
+    def is_direct(self) -> bool:
+        return not (self.sdist or self.wheels)
+
+
+@dataclass(frozen=True, init=False)
+class Pylock:
+    """A class representing a pylock file."""
+
+    lock_version: Version
+    environments: Sequence[Marker] | None = None
+    requires_python: SpecifierSet | None = None
+    extras: Sequence[NormalizedName] | None = None
+    dependency_groups: Sequence[str] | None = None
+    default_groups: Sequence[str] | None = None
+    created_by: str  # type: ignore[misc]
+    packages: Sequence[Package]  # type: ignore[misc]
+    tool: Mapping[str, Any] | None = None
+
+    def __init__(
+        self,
+        *,
+        lock_version: Version,
+        environments: Sequence[Marker] | None = None,
+        requires_python: SpecifierSet | None = None,
+        extras: Sequence[NormalizedName] | None = None,
+        dependency_groups: Sequence[str] | None = None,
+        default_groups: Sequence[str] | None = None,
+        created_by: str,
+        packages: Sequence[Package],
+        tool: Mapping[str, Any] | None = None,
+    ) -> None:
+        # In Python 3.10+ make dataclass kw_only=True and remove __init__
+        object.__setattr__(self, "lock_version", lock_version)
+        object.__setattr__(self, "environments", environments)
+        object.__setattr__(self, "requires_python", requires_python)
+        object.__setattr__(self, "extras", extras)
+        object.__setattr__(self, "dependency_groups", dependency_groups)
+        object.__setattr__(self, "default_groups", default_groups)
+        object.__setattr__(self, "created_by", created_by)
+        object.__setattr__(self, "packages", packages)
+        object.__setattr__(self, "tool", tool)
+
+    @classmethod
+    def _from_dict(cls, d: Mapping[str, Any]) -> Self:
+        pylock = cls(
+            lock_version=_get_required_as(d, str, Version, "lock-version"),
+            environments=_get_sequence_as(d, str, Marker, "environments"),
+            extras=_get_sequence_as(d, str, _validate_normalized_name, "extras"),
+            dependency_groups=_get_sequence(d, str, "dependency-groups"),
+            default_groups=_get_sequence(d, str, "default-groups"),
+            created_by=_get_required(d, str, "created-by"),
+            requires_python=_get_as(d, str, SpecifierSet, "requires-python"),
+            packages=_get_required_sequence_of_objects(d, Package, "packages"),
+            tool=_get(d, Mapping, "tool"),  # type: ignore[type-abstract]
+        )
+        if not Version("1") <= pylock.lock_version < Version("2"):
+            raise PylockUnsupportedVersionError(
+                f"pylock version {pylock.lock_version} is not supported"
+            )
+        if pylock.lock_version > Version("1.0"):
+            _logger.warning(
+                "pylock minor version %s is not supported", pylock.lock_version
+            )
+        return pylock
+
+    @classmethod
+    def from_dict(cls, d: Mapping[str, Any], /) -> Self:
+        """Create and validate a Pylock instance from a TOML dictionary.
+
+        Raises :class:`PylockValidationError` if the input data is not
+        spec-compliant.
+        """
+        return cls._from_dict(d)
+
+    def to_dict(self) -> Mapping[str, Any]:
+        """Convert the Pylock instance to a TOML dictionary."""
+        return dataclasses.asdict(self, dict_factory=_toml_dict_factory)
+
+    def validate(self) -> None:
+        """Validate the Pylock instance against the specification.
+
+        Raises :class:`PylockValidationError` otherwise."""
+        self.from_dict(self.to_dict())
+
+    def select(
+        self,
+        *,
+        environment: Environment | None = None,
+        tags: Sequence[Tag] | None = None,
+        extras: Collection[str] | None = None,
+        dependency_groups: Collection[str] | None = None,
+    ) -> Iterator[
+        tuple[
+            Package,
+            PackageVcs
+            | PackageDirectory
+            | PackageArchive
+            | PackageWheel
+            | PackageSdist,
+        ]
+    ]:
+        """Select what to install from the lock file.
+
+        The *environment* and *tags* parameters represent the environment being
+        selected for. If unspecified, ``packaging.markers.default_environment()`` and
+        ``packaging.tags.sys_tags()`` are used.
+
+        The *extras* parameter represents the extras to install.
+
+        The *dependency_groups* parameter represents the groups to install. If
+        unspecified, the default groups are used.
+
+        This method must be used on valid Pylock instances (i.e. one obtained
+        from :meth:`Pylock.from_dict` or if constructed manually, after calling
+        :meth:`Pylock.validate`).
+        """
+        compatible_tags_selector = create_compatible_tags_selector(tags or sys_tags())
+
+        # #. Gather the extras and dependency groups to install and set ``extras`` and
+        #    ``dependency_groups`` for marker evaluation, respectively.
+        #
+        #    #. ``extras`` SHOULD be set to the empty set by default.
+        #    #. ``dependency_groups`` SHOULD be the set created from
+        #       :ref:`pylock-default-groups` by default.
+        env = cast(
+            "dict[str, str | frozenset[str]]",
+            dict(
+                environment or {},  # Marker.evaluate will fill-up
+                extras=frozenset(extras or []),
+                dependency_groups=frozenset(
+                    (self.default_groups or [])
+                    if dependency_groups is None  # to allow selecting no group
+                    else dependency_groups
+                ),
+            ),
+        )
+        env_python_full_version = (
+            environment["python_full_version"]
+            if environment
+            else default_environment()["python_full_version"]
+        )
+
+        # #. Check if the metadata version specified by :ref:`pylock-lock-version` is
+        #    supported; an error or warning MUST be raised as appropriate.
+        # Covered by lock.validate() which is a precondition for this method.
+
+        # #. If :ref:`pylock-requires-python` is specified, check that the environment
+        #    being installed for meets the requirement; an error MUST be raised if it is
+        #    not met.
+        if self.requires_python and not self.requires_python.contains(
+            env_python_full_version,
+        ):
+            raise PylockSelectError(
+                f"python_full_version {env_python_full_version!r} "
+                f"in provided environment does not satisfy the Python version "
+                f"requirement {str(self.requires_python)!r}"
+            )
+
+        # #. If :ref:`pylock-environments` is specified, check that at least one of the
+        #    environment marker expressions is satisfied; an error MUST be raised if no
+        #    expression is satisfied.
+        if self.environments:
+            for env_marker in self.environments:
+                if env_marker.evaluate(
+                    cast("dict[str, str]", environment or {}), context="requirement"
+                ):
+                    break
+            else:
+                raise PylockSelectError(
+                    "Provided environment does not satisfy any of the "
+                    "environments specified in the lock file"
+                )
+
+        # #. For each package listed in :ref:`pylock-packages`:
+        selected_packages_by_name: dict[str, tuple[int, Package]] = {}
+        for package_index, package in enumerate(self.packages):
+            # #. If :ref:`pylock-packages-marker` is specified, check if it is
+            #    satisfied;if it isn't, skip to the next package.
+            if package.marker and not package.marker.evaluate(env, context="lock_file"):
+                continue
+
+            # #. If :ref:`pylock-packages-requires-python` is specified, check if it is
+            #    satisfied; an error MUST be raised if it isn't.
+            if package.requires_python and not package.requires_python.contains(
+                env_python_full_version,
+            ):
+                raise PylockSelectError(
+                    f"python_full_version {env_python_full_version!r} "
+                    f"in provided environment does not satisfy the Python version "
+                    f"requirement {str(package.requires_python)!r} for package "
+                    f"{package.name!r} at packages[{package_index}]"
+                )
+
+            # #. Check that no other conflicting instance of the package has been slated
+            #    to be installed; an error about the ambiguity MUST be raised otherwise.
+            if package.name in selected_packages_by_name:
+                raise PylockSelectError(
+                    f"Multiple packages with the name {package.name!r} are "
+                    f"selected at packages[{package_index}] and "
+                    f"packages[{selected_packages_by_name[package.name][0]}]"
+                )
+
+            # #. Check that the source of the package is specified appropriately (i.e.
+            #    there are no conflicting sources in the package entry);
+            #    an error MUST be raised if any issues are found.
+            # Covered by lock.validate() which is a precondition for this method.
+
+            # #. Add the package to the set of packages to install.
+            selected_packages_by_name[package.name] = (package_index, package)
+
+        # #. For each package to be installed:
+        for package_index, package in selected_packages_by_name.values():
+            # - If :ref:`pylock-packages-vcs` is set:
+            if package.vcs is not None:
+                yield package, package.vcs
+
+            # - Else if :ref:`pylock-packages-directory` is set:
+            elif package.directory is not None:
+                yield package, package.directory
+
+            # - Else if :ref:`pylock-packages-archive` is set:
+            elif package.archive is not None:
+                yield package, package.archive
+
+            # - Else if there are entries for :ref:`pylock-packages-wheels`:
+            elif package.wheels:
+                # #. Look for the appropriate wheel file based on
+                #    :ref:`pylock-packages-wheels-name`; if one is not found then move
+                #    on to :ref:`pylock-packages-sdist` or an error MUST be raised about
+                #    a lack of source for the project.
+                best_wheel = next(
+                    compatible_tags_selector(
+                        (wheel, parse_wheel_filename(wheel.filename)[-1])
+                        for wheel in package.wheels
+                    ),
+                    None,
+                )
+                if best_wheel:
+                    yield package, best_wheel
+                elif package.sdist is not None:
+                    yield package, package.sdist
+                else:
+                    raise PylockSelectError(
+                        f"No wheel found matching the provided tags "
+                        f"for package {package.name!r} "
+                        f"at packages[{package_index}], "
+                        f"and no sdist available as a fallback"
+                    )
+
+            # - Else if no :ref:`pylock-packages-wheels` file is found or
+            #   :ref:`pylock-packages-sdist` is solely set:
+            elif package.sdist is not None:
+                yield package, package.sdist
+
+            else:
+                # Covered by lock.validate() which is a precondition for this method.
+                raise NotImplementedError  # pragma: no cover

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/requirements.py

@@ -0,0 +1,129 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+from __future__ import annotations
+
+from typing import Iterator
+
+from ._parser import parse_requirement as _parse_requirement
+from ._tokenizer import ParserSyntaxError
+from .markers import Marker, _normalize_extra_values
+from .specifiers import SpecifierSet
+from .utils import canonicalize_name
+
+__all__ = [
+    "InvalidRequirement",
+    "Requirement",
+]
+
+
+def __dir__() -> list[str]:
+    return __all__
+
+
+class InvalidRequirement(ValueError):
+    """
+    An invalid requirement was found, users should refer to PEP 508.
+    """
+
+
+class Requirement:
+    """Parse a requirement.
+
+    Parse a given requirement string into its parts, such as name, specifier,
+    URL, and extras. Raises InvalidRequirement on a badly-formed requirement
+    string.
+
+    Instances are safe to serialize with :mod:`pickle`. They use a stable
+    format so the same pickle can be loaded in future packaging releases.
+
+    .. versionchanged:: 26.2
+
+        Added a stable pickle format. Pickles created with packaging 26.2+ can
+        be unpickled with future releases.  Backward compatibility with pickles
+        from packaging < 26.2 is supported but may be removed in a future
+        release.
+    """
+
+    # TODO: Can we test whether something is contained within a requirement?
+    #       If so how do we do that? Do we need to test against the _name_ of
+    #       the thing as well as the version? What about the markers?
+    # TODO: Can we normalize the name and extra name?
+
+    def __init__(self, requirement_string: str) -> None:
+        try:
+            parsed = _parse_requirement(requirement_string)
+        except ParserSyntaxError as e:
+            raise InvalidRequirement(str(e)) from e
+
+        self.name: str = parsed.name
+        self.url: str | None = parsed.url or None
+        self.extras: set[str] = set(parsed.extras or [])
+        self.specifier: SpecifierSet = SpecifierSet(parsed.specifier)
+        self.marker: Marker | None = None
+        if parsed.marker is not None:
+            self.marker = Marker.__new__(Marker)
+            self.marker._markers = _normalize_extra_values(parsed.marker)
+
+    def _iter_parts(self, name: str) -> Iterator[str]:
+        yield name
+
+        if self.extras:
+            formatted_extras = ",".join(sorted(self.extras))
+            yield f"[{formatted_extras}]"
+
+        if self.specifier:
+            yield str(self.specifier)
+
+        if self.url:
+            yield f" @ {self.url}"
+            if self.marker:
+                yield " "
+
+        if self.marker:
+            yield f"; {self.marker}"
+
+    def __getstate__(self) -> str:
+        # Return the requirement string for compactness and stability.
+        # Re-parsed on load to reconstruct all fields.
+        return str(self)
+
+    def __setstate__(self, state: object) -> None:
+        if isinstance(state, str):
+            # New format (26.2+): just the requirement string.
+            try:
+                tmp = Requirement(state)
+            except InvalidRequirement as exc:
+                raise TypeError(f"Cannot restore Requirement from {state!r}") from exc
+            self.name = tmp.name
+            self.url = tmp.url
+            self.extras = tmp.extras
+            self.specifier = tmp.specifier
+            self.marker = tmp.marker
+            return
+        if isinstance(state, dict):
+            # Old format (packaging <= 26.1, no __slots__): plain __dict__.
+            self.__dict__.update(state)
+            return
+        raise TypeError(f"Cannot restore Requirement from {state!r}")
+
+    def __str__(self) -> str:
+        return "".join(self._iter_parts(self.name))
+
+    def __repr__(self) -> str:
+        return f"<{self.__class__.__name__}({str(self)!r})>"
+
+    def __hash__(self) -> int:
+        return hash(tuple(self._iter_parts(canonicalize_name(self.name))))
+
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, Requirement):
+            return NotImplemented
+
+        return (
+            canonicalize_name(self.name) == canonicalize_name(other.name)
+            and self.extras == other.extras
+            and self.specifier == other.specifier
+            and self.url == other.url
+            and self.marker == other.marker
+        )

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/specifiers.py

@@ -0,0 +1,1943 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+"""
+.. testsetup::
+
+    from packaging.specifiers import Specifier, SpecifierSet, InvalidSpecifier
+    from packaging.version import Version
+"""
+
+from __future__ import annotations
+
+import abc
+import enum
+import functools
+import itertools
+import re
+import sys
+import typing
+from typing import (
+    TYPE_CHECKING,
+    Any,
+    Callable,
+    Final,
+    Iterable,
+    Iterator,
+    Sequence,
+    TypeVar,
+    Union,
+)
+
+from .utils import canonicalize_version
+from .version import InvalidVersion, Version
+
+if sys.version_info >= (3, 10):
+    from typing import TypeGuard  # pragma: no cover
+elif TYPE_CHECKING:
+    from typing_extensions import TypeGuard
+
+__all__ = [
+    "BaseSpecifier",
+    "InvalidSpecifier",
+    "Specifier",
+    "SpecifierSet",
+]
+
+
+def __dir__() -> list[str]:
+    return __all__
+
+
+def _validate_spec(spec: object, /) -> TypeGuard[tuple[str, str]]:
+    return (
+        isinstance(spec, tuple)
+        and len(spec) == 2
+        and isinstance(spec[0], str)
+        and isinstance(spec[1], str)
+    )
+
+
+def _validate_pre(pre: object, /) -> TypeGuard[bool | None]:
+    return pre is None or isinstance(pre, bool)
+
+
+T = TypeVar("T")
+UnparsedVersion = Union[Version, str]
+UnparsedVersionVar = TypeVar("UnparsedVersionVar", bound=UnparsedVersion)
+CallableOperator = Callable[[Version, str], bool]
+
+# The smallest possible PEP 440 version. No valid version is less than this.
+_MIN_VERSION: Final[Version] = Version("0.dev0")
+
+
+def _trim_release(release: tuple[int, ...]) -> tuple[int, ...]:
+    """Strip trailing zeros from a release tuple for normalized comparison."""
+    end = len(release)
+    while end > 1 and release[end - 1] == 0:
+        end -= 1
+    return release if end == len(release) else release[:end]
+
+
+class _BoundaryKind(enum.Enum):
+    """Where a boundary marker sits in the version ordering."""
+
+    AFTER_LOCALS = enum.auto()  # after V+local, before V.post0
+    AFTER_POSTS = enum.auto()  # after V.postN, before next release
+
+
+@functools.total_ordering
+class _BoundaryVersion:
+    """A point on the version line between two real PEP 440 versions.
+
+    Some specifier semantics imply boundaries between real versions:
+    ``<=1.0`` includes ``1.0+local`` and ``>1.0`` excludes
+    ``1.0.post0``.  No real :class:`Version` falls on those boundaries,
+    so this class creates values that sort between the real versions
+    on either side.
+
+    Two kinds exist, shown relative to a base version V::
+
+        V < V+local < AFTER_LOCALS(V) < V.post0 < AFTER_POSTS(V)
+
+    ``AFTER_LOCALS`` sits after V and every V+local, but before
+    V.post0.  Upper bound of ``<=V``, ``==V``, ``!=V``.
+
+    ``AFTER_POSTS`` sits after every V.postN, but before the next
+    release segment.  Lower bound of ``>V`` (final or pre-release V)
+    to exclude post-releases per PEP 440.
+    """
+
+    __slots__ = ("_kind", "_trimmed_release", "version")
+
+    def __init__(self, version: Version, kind: _BoundaryKind) -> None:
+        self.version = version
+        self._kind = kind
+        self._trimmed_release = _trim_release(version.release)
+
+    def _is_family(self, other: Version) -> bool:
+        """Is ``other`` a version that this boundary sorts above?"""
+        v = self.version
+        if not (
+            other.epoch == v.epoch
+            and _trim_release(other.release) == self._trimmed_release
+            and other.pre == v.pre
+        ):
+            return False
+        if self._kind == _BoundaryKind.AFTER_LOCALS:
+            # Local family: exact same public version (any local label).
+            return other.post == v.post and other.dev == v.dev
+        # Post family: same base + any post-release (or identical).
+        return other.dev == v.dev or other.post is not None
+
+    def __eq__(self, other: object) -> bool:
+        if isinstance(other, _BoundaryVersion):
+            return self.version == other.version and self._kind == other._kind
+        return NotImplemented
+
+    def __lt__(self, other: _BoundaryVersion | Version) -> bool:
+        if isinstance(other, _BoundaryVersion):
+            if self.version != other.version:
+                return self.version < other.version
+            return self._kind.value < other._kind.value
+        return not self._is_family(other) and self.version < other
+
+    def __hash__(self) -> int:
+        return hash((self.version, self._kind))
+
+    def __repr__(self) -> str:
+        return f"{self.__class__.__name__}({self.version!r}, {self._kind.name})"
+
+
+@functools.total_ordering
+class _LowerBound:
+    """Lower bound of a version range.
+
+    A version *v* of ``None`` means unbounded below (-inf).
+    At equal versions, ``[v`` sorts before ``(v`` because an inclusive
+    bound starts earlier.
+    """
+
+    __slots__ = ("inclusive", "version")
+
+    def __init__(self, version: _VersionOrBoundary, inclusive: bool) -> None:
+        self.version = version
+        self.inclusive = inclusive
+
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, _LowerBound):
+            return NotImplemented  # pragma: no cover
+        return self.version == other.version and self.inclusive == other.inclusive
+
+    def __lt__(self, other: _LowerBound) -> bool:
+        if not isinstance(other, _LowerBound):  # pragma: no cover
+            return NotImplemented
+        # -inf < anything (except -inf).
+        if self.version is None:
+            return other.version is not None
+        if other.version is None:
+            return False
+        if self.version != other.version:
+            return self.version < other.version
+        # [v < (v: inclusive starts earlier.
+        return self.inclusive and not other.inclusive
+
+    def __hash__(self) -> int:
+        return hash((self.version, self.inclusive))
+
+    def __repr__(self) -> str:
+        bracket = "[" if self.inclusive else "("
+        return f"<{self.__class__.__name__} {bracket}{self.version!r}>"
+
+
+@functools.total_ordering
+class _UpperBound:
+    """Upper bound of a version range.
+
+    A version *v* of ``None`` means unbounded above (+inf).
+    At equal versions, ``v)`` sorts before ``v]`` because an exclusive
+    bound ends earlier.
+    """
+
+    __slots__ = ("inclusive", "version")
+
+    def __init__(self, version: _VersionOrBoundary, inclusive: bool) -> None:
+        self.version = version
+        self.inclusive = inclusive
+
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, _UpperBound):
+            return NotImplemented  # pragma: no cover
+        return self.version == other.version and self.inclusive == other.inclusive
+
+    def __lt__(self, other: _UpperBound) -> bool:
+        if not isinstance(other, _UpperBound):  # pragma: no cover
+            return NotImplemented
+        # Nothing < +inf (except +inf itself).
+        if self.version is None:
+            return False
+        if other.version is None:
+            return True
+        if self.version != other.version:
+            return self.version < other.version
+        # v) < v]: exclusive ends earlier.
+        return not self.inclusive and other.inclusive
+
+    def __hash__(self) -> int:
+        return hash((self.version, self.inclusive))
+
+    def __repr__(self) -> str:
+        bracket = "]" if self.inclusive else ")"
+        return f"<{self.__class__.__name__} {self.version!r}{bracket}>"
+
+
+if typing.TYPE_CHECKING:
+    _VersionOrBoundary = Union[Version, _BoundaryVersion, None]
+
+    #: A single contiguous version range, represented as a
+    #: (lower bound, upper bound) pair.
+    _VersionRange = tuple[_LowerBound, _UpperBound]
+
+_NEG_INF = _LowerBound(None, False)
+_POS_INF = _UpperBound(None, False)
+_FULL_RANGE: tuple[_VersionRange] = ((_NEG_INF, _POS_INF),)
+
+
+def _range_is_empty(lower: _LowerBound, upper: _UpperBound) -> bool:
+    """True when the range defined by *lower* and *upper* contains no versions."""
+    if lower.version is None or upper.version is None:
+        return False
+    if lower.version == upper.version:
+        return not (lower.inclusive and upper.inclusive)
+    return lower.version > upper.version
+
+
+def _intersect_ranges(
+    left: Sequence[_VersionRange],
+    right: Sequence[_VersionRange],
+) -> list[_VersionRange]:
+    """Intersect two sorted, non-overlapping range lists (two-pointer merge)."""
+    result: list[_VersionRange] = []
+    left_index = right_index = 0
+    while left_index < len(left) and right_index < len(right):
+        left_lower, left_upper = left[left_index]
+        right_lower, right_upper = right[right_index]
+
+        lower = max(left_lower, right_lower)
+        upper = min(left_upper, right_upper)
+
+        if not _range_is_empty(lower, upper):
+            result.append((lower, upper))
+
+        # Advance whichever side has the smaller upper bound.
+        if left_upper < right_upper:
+            left_index += 1
+        else:
+            right_index += 1
+
+    return result
+
+
+def _next_prefix_dev0(version: Version) -> Version:
+    """Smallest version in the next prefix: 1.2 -> 1.3.dev0."""
+    release = (*version.release[:-1], version.release[-1] + 1)
+    return Version.from_parts(epoch=version.epoch, release=release, dev=0)
+
+
+def _base_dev0(version: Version) -> Version:
+    """The .dev0 of a version's base release: 1.2 -> 1.2.dev0."""
+    return Version.from_parts(epoch=version.epoch, release=version.release, dev=0)
+
+
+def _coerce_version(version: UnparsedVersion) -> Version | None:
+    if not isinstance(version, Version):
+        try:
+            version = Version(version)
+        except InvalidVersion:
+            return None
+    return version
+
+
+def _public_version(version: Version) -> Version:
+    if version.local is None:
+        return version
+    return version.__replace__(local=None)
+
+
+def _post_base(version: Version) -> Version:
+    """The version that *version* is a post-release of.
+
+    1.0.post1 -> 1.0, 1.0a1.post0 -> 1.0a1, 1.0.post0.dev1 -> 1.0.
+    """
+    return version.__replace__(post=None, dev=None, local=None)
+
+
+def _earliest_prerelease(version: Version) -> Version:
+    """Earliest pre-release of *version*.
+
+    1.2 -> 1.2.dev0, 1.2.post1 -> 1.2.post1.dev0.
+    """
+    return version.__replace__(dev=0, local=None)
+
+
+def _nearest_non_prerelease(
+    v: _VersionOrBoundary,
+) -> Version | None:
+    """Smallest non-pre-release version at or above *v*, or None."""
+    if v is None:
+        return None
+    if isinstance(v, _BoundaryVersion):
+        inner = v.version
+        if inner.is_prerelease:
+            # AFTER_LOCALS(1.0a1) -> nearest non-pre is 1.0
+            return inner.__replace__(pre=None, dev=None, local=None)
+        # AFTER_LOCALS(1.0) -> nearest non-pre is 1.0.post0
+        # AFTER_LOCALS(1.0.post0) -> nearest non-pre is 1.0.post1
+        k = (inner.post + 1) if inner.post is not None else 0
+        return inner.__replace__(post=k, local=None)
+    if not v.is_prerelease:
+        return v
+    # Strip pre/dev to get the final or post-release form.
+    return v.__replace__(pre=None, dev=None, local=None)
+
+
+class InvalidSpecifier(ValueError):
+    """
+    Raised when attempting to create a :class:`Specifier` with a specifier
+    string that is invalid.
+
+    >>> Specifier("lolwat")
+    Traceback (most recent call last):
+        ...
+    packaging.specifiers.InvalidSpecifier: Invalid specifier: 'lolwat'
+    """
+
+
+class BaseSpecifier(metaclass=abc.ABCMeta):
+    __slots__ = ()
+    __match_args__ = ("_str",)
+
+    @property
+    def _str(self) -> str:
+        """Internal property for match_args"""
+        return str(self)
+
+    @abc.abstractmethod
+    def __str__(self) -> str:
+        """
+        Returns the str representation of this Specifier-like object. This
+        should be representative of the Specifier itself.
+        """
+
+    @abc.abstractmethod
+    def __hash__(self) -> int:
+        """
+        Returns a hash value for this Specifier-like object.
+        """
+
+    @abc.abstractmethod
+    def __eq__(self, other: object) -> bool:
+        """
+        Returns a boolean representing whether or not the two Specifier-like
+        objects are equal.
+
+        :param other: The other object to check against.
+        """
+
+    @property
+    @abc.abstractmethod
+    def prereleases(self) -> bool | None:
+        """Whether or not pre-releases as a whole are allowed.
+
+        This can be set to either ``True`` or ``False`` to explicitly enable or disable
+        prereleases or it can be set to ``None`` (the default) to use default semantics.
+        """
+
+    @prereleases.setter  # noqa: B027
+    def prereleases(self, value: bool) -> None:
+        """Setter for :attr:`prereleases`.
+
+        :param value: The value to set.
+        """
+
+    @abc.abstractmethod
+    def contains(self, item: str, prereleases: bool | None = None) -> bool:
+        """
+        Determines if the given item is contained within this specifier.
+        """
+
+    @typing.overload
+    def filter(
+        self,
+        iterable: Iterable[UnparsedVersionVar],
+        prereleases: bool | None = None,
+        key: None = ...,
+    ) -> Iterator[UnparsedVersionVar]: ...
+
+    @typing.overload
+    def filter(
+        self,
+        iterable: Iterable[T],
+        prereleases: bool | None = None,
+        key: Callable[[T], UnparsedVersion] = ...,
+    ) -> Iterator[T]: ...
+
+    @abc.abstractmethod
+    def filter(
+        self,
+        iterable: Iterable[Any],
+        prereleases: bool | None = None,
+        key: Callable[[Any], UnparsedVersion] | None = None,
+    ) -> Iterator[Any]:
+        """
+        Takes an iterable of items and filters them so that only items which
+        are contained within this specifier are allowed in it.
+        """
+
+
+class Specifier(BaseSpecifier):
+    """This class abstracts handling of version specifiers.
+
+    .. tip::
+
+        It is generally not required to instantiate this manually. You should instead
+        prefer to work with :class:`SpecifierSet` instead, which can parse
+        comma-separated version specifiers (which is what package metadata contains).
+
+    Instances are safe to serialize with :mod:`pickle`. They use a stable
+    format so the same pickle can be loaded in future packaging releases.
+
+    .. versionchanged:: 26.2
+
+        Added a stable pickle format. Pickles created with packaging 26.2+ can
+        be unpickled with future releases.  Backward compatibility with pickles
+        from packaging < 26.2 is supported but may be removed in a future
+        release.
+    """
+
+    __slots__ = (
+        "_prereleases",
+        "_ranges",
+        "_spec",
+        "_spec_version",
+        "_wildcard_split",
+    )
+
+    _specifier_regex_str = r"""
+        (?:
+            (?:
+                # The identity operators allow for an escape hatch that will
+                # do an exact string match of the version you wish to install.
+                # This will not be parsed by PEP 440 and we cannot determine
+                # any semantic meaning from it. This operator is discouraged
+                # but included entirely as an escape hatch.
+                ===  # Only match for the identity operator
+                \s*
+                [^\s;)]*  # The arbitrary version can be just about anything,
+                          # we match everything except for whitespace, a
+                          # semi-colon for marker support, and a closing paren
+                          # since versions can be enclosed in them.
+            )
+            |
+            (?:
+                # The (non)equality operators allow for wild card and local
+                # versions to be specified so we have to define these two
+                # operators separately to enable that.
+                (?:==|!=)            # Only match for equals and not equals
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)*   # release
+
+                # You cannot use a wild card and a pre-release, post-release, a dev or
+                # local version together so group them with a | and make them optional.
+                (?:
+                    \.\*  # Wild card syntax of .*
+                    |
+                    (?a:                                  # pre release
+                        [-_\.]?
+                        (alpha|beta|preview|pre|a|b|c|rc)
+                        [-_\.]?
+                        [0-9]*
+                    )?
+                    (?a:                                  # post release
+                        (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                    )?
+                    (?a:[-_\.]?dev[-_\.]?[0-9]*)?         # dev release
+                    (?a:\+[a-z0-9]+(?:[-_\.][a-z0-9]+)*)? # local
+                )?
+            )
+            |
+            (?:
+                # The compatible operator requires at least two digits in the
+                # release segment.
+                (?:~=)               # Only match for the compatible operator
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)+   # release  (We have a + instead of a *)
+                (?:                   # pre release
+                    [-_\.]?
+                    (alpha|beta|preview|pre|a|b|c|rc)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?:                                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+                (?:[-_\.]?dev[-_\.]?[0-9]*)?          # dev release
+            )
+            |
+            (?:
+                # All other operators only allow a sub set of what the
+                # (non)equality operators do. Specifically they do not allow
+                # local versions to be specified nor do they allow the prefix
+                # matching wild cards.
+                (?:<=|>=|<|>)
+
+                \s*
+                v?
+                (?:[0-9]+!)?          # epoch
+                [0-9]+(?:\.[0-9]+)*   # release
+                (?a:                   # pre release
+                    [-_\.]?
+                    (alpha|beta|preview|pre|a|b|c|rc)
+                    [-_\.]?
+                    [0-9]*
+                )?
+                (?a:                                   # post release
+                    (?:-[0-9]+)|(?:[-_\.]?(post|rev|r)[-_\.]?[0-9]*)
+                )?
+                (?a:[-_\.]?dev[-_\.]?[0-9]*)?          # dev release
+            )
+        )
+        """
+
+    _regex = re.compile(
+        r"\s*" + _specifier_regex_str + r"\s*", re.VERBOSE | re.IGNORECASE
+    )
+
+    _operators: Final = {
+        "~=": "compatible",
+        "==": "equal",
+        "!=": "not_equal",
+        "<=": "less_than_equal",
+        ">=": "greater_than_equal",
+        "<": "less_than",
+        ">": "greater_than",
+        "===": "arbitrary",
+    }
+
+    def __init__(self, spec: str = "", prereleases: bool | None = None) -> None:
+        """Initialize a Specifier instance.
+
+        :param spec:
+            The string representation of a specifier which will be parsed and
+            normalized before use.
+        :param prereleases:
+            This tells the specifier if it should accept prerelease versions if
+            applicable or not. The default of ``None`` will autodetect it from the
+            given specifiers.
+        :raises InvalidSpecifier:
+            If the given specifier is invalid (i.e. bad syntax).
+        """
+        if not self._regex.fullmatch(spec):
+            raise InvalidSpecifier(f"Invalid specifier: {spec!r}")
+
+        spec = spec.strip()
+        if spec.startswith("==="):
+            operator, version = spec[:3], spec[3:].strip()
+        elif spec.startswith(("~=", "==", "!=", "<=", ">=")):
+            operator, version = spec[:2], spec[2:].strip()
+        else:
+            operator, version = spec[:1], spec[1:].strip()
+
+        self._spec: tuple[str, str] = (operator, version)
+
+        # Store whether or not this Specifier should accept prereleases
+        self._prereleases = prereleases
+
+        # Specifier version cache
+        self._spec_version: tuple[str, Version] | None = None
+
+        # Populated on first wildcard (==X.*) comparison
+        self._wildcard_split: tuple[list[str], int] | None = None
+
+        # Version range cache (populated by _to_ranges)
+        self._ranges: Sequence[_VersionRange] | None = None
+
+    def _get_spec_version(self, version: str) -> Version | None:
+        """One element cache, as only one spec Version is needed per Specifier."""
+        if self._spec_version is not None and self._spec_version[0] == version:
+            return self._spec_version[1]
+
+        version_specifier = _coerce_version(version)
+        if version_specifier is None:
+            return None
+
+        self._spec_version = (version, version_specifier)
+        return version_specifier
+
+    def _require_spec_version(self, version: str) -> Version:
+        """Get spec version, asserting it's valid (not for === operator).
+
+        This method should only be called for operators where version
+        strings are guaranteed to be valid PEP 440 versions (not ===).
+        """
+        spec_version = self._get_spec_version(version)
+        assert spec_version is not None
+        return spec_version
+
+    def _to_ranges(self) -> Sequence[_VersionRange]:
+        """Convert this specifier to sorted, non-overlapping version ranges.
+
+        Each standard operator maps to one or two ranges.  ``===`` is
+        modeled as full range (actual check done separately).  Cached.
+        """
+        if self._ranges is not None:
+            return self._ranges
+
+        op = self.operator
+        ver_str = self.version
+
+        if op == "===":
+            self._ranges = _FULL_RANGE
+            return _FULL_RANGE
+
+        if ver_str.endswith(".*"):
+            result = self._wildcard_ranges(op, ver_str)
+        else:
+            result = self._standard_ranges(op, ver_str)
+
+        self._ranges = result
+        return result
+
+    def _wildcard_ranges(self, op: str, ver_str: str) -> list[_VersionRange]:
+        # ==1.2.* -> [1.2.dev0, 1.3.dev0);  !=1.2.* -> complement.
+        base = self._require_spec_version(ver_str[:-2])
+        lower = _base_dev0(base)
+        upper = _next_prefix_dev0(base)
+        if op == "==":
+            return [(_LowerBound(lower, True), _UpperBound(upper, False))]
+        # !=
+        return [
+            (_NEG_INF, _UpperBound(lower, False)),
+            (_LowerBound(upper, True), _POS_INF),
+        ]
+
+    def _standard_ranges(self, op: str, ver_str: str) -> list[_VersionRange]:
+        v = self._require_spec_version(ver_str)
+
+        if op == ">=":
+            return [(_LowerBound(v, True), _POS_INF)]
+
+        if op == "<=":
+            return [
+                (
+                    _NEG_INF,
+                    _UpperBound(_BoundaryVersion(v, _BoundaryKind.AFTER_LOCALS), True),
+                )
+            ]
+
+        if op == ">":
+            if v.dev is not None:
+                # >V.devN: dev versions have no post-releases, so the
+                # next real version is V.dev(N+1).
+                lower_ver = v.__replace__(dev=v.dev + 1, local=None)
+                return [(_LowerBound(lower_ver, True), _POS_INF)]
+            if v.post is not None:
+                # >V.postN: next real version is V.post(N+1).dev0.
+                lower_ver = v.__replace__(post=v.post + 1, dev=0, local=None)
+                return [(_LowerBound(lower_ver, True), _POS_INF)]
+            # >V (final or pre-release): skip V+local and all V.postN.
+            return [
+                (
+                    _LowerBound(_BoundaryVersion(v, _BoundaryKind.AFTER_POSTS), False),
+                    _POS_INF,
+                )
+            ]
+
+        if op == "<":
+            # <V excludes prereleases of V when V is not a prerelease.
+            # V.dev0 is the earliest prerelease of V (final, post, etc.).
+            bound = v if v.is_prerelease else v.__replace__(dev=0, local=None)
+            if bound <= _MIN_VERSION:
+                return []
+            return [(_NEG_INF, _UpperBound(bound, False))]
+
+        # ==, !=: local versions of V match when spec has no local segment.
+        has_local = "+" in ver_str
+        after_locals = _BoundaryVersion(v, _BoundaryKind.AFTER_LOCALS)
+        upper = v if has_local else after_locals
+
+        if op == "==":
+            return [(_LowerBound(v, True), _UpperBound(upper, True))]
+
+        if op == "!=":
+            return [
+                (_NEG_INF, _UpperBound(v, False)),
+                (_LowerBound(upper, False), _POS_INF),
+            ]
+
+        if op == "~=":
+            prefix = v.__replace__(release=v.release[:-1])
+            return [
+                (_LowerBound(v, True), _UpperBound(_next_prefix_dev0(prefix), False))
+            ]
+
+        raise ValueError(f"Unknown operator: {op!r}")  # pragma: no cover
+
+    @property
+    def prereleases(self) -> bool | None:
+        # If there is an explicit prereleases set for this, then we'll just
+        # blindly use that.
+        if self._prereleases is not None:
+            return self._prereleases
+
+        # Only the "!=" operator does not imply prereleases when
+        # the version in the specifier is a prerelease.
+        operator, version_str = self._spec
+        if operator == "!=":
+            return False
+
+        # The == specifier with trailing .* cannot include prereleases
+        # e.g. "==1.0a1.*" is not valid.
+        if operator == "==" and version_str.endswith(".*"):
+            return False
+
+        # "===" can have arbitrary string versions, so we cannot parse
+        # those, we take prereleases as unknown (None) for those.
+        version = self._get_spec_version(version_str)
+        if version is None:
+            return None
+
+        # For all other operators, use the check if spec Version
+        # object implies pre-releases.
+        return version.is_prerelease
+
+    @prereleases.setter
+    def prereleases(self, value: bool | None) -> None:
+        self._prereleases = value
+
+    def __getstate__(self) -> tuple[tuple[str, str], bool | None]:
+        # Return state as a 2-item tuple for compactness:
+        #   ((operator, version), prereleases)
+        # Cache members are excluded and will be recomputed on demand.
+        return (self._spec, self._prereleases)
+
+    def __setstate__(self, state: object) -> None:
+        # Always discard cached values - they will be recomputed on demand.
+        self._spec_version = None
+        self._wildcard_split = None
+        self._ranges = None
+
+        if isinstance(state, tuple):
+            if len(state) == 2:
+                # New format (26.2+): ((operator, version), prereleases)
+                spec, prereleases = state
+                if _validate_spec(spec) and _validate_pre(prereleases):
+                    self._spec = spec
+                    self._prereleases = prereleases
+                    return
+            if len(state) == 2 and isinstance(state[1], dict):
+                # Format (packaging 26.0-26.1): (None, {slot: value}).
+                _, slot_dict = state
+                spec = slot_dict.get("_spec")
+                prereleases = slot_dict.get("_prereleases", "invalid")
+                if _validate_spec(spec) and _validate_pre(prereleases):
+                    self._spec = spec
+                    self._prereleases = prereleases
+                    return
+        if isinstance(state, dict):
+            # Old format (packaging <= 25.x, no __slots__): state is a plain dict.
+            spec = state.get("_spec")
+            prereleases = state.get("_prereleases", "invalid")
+            if _validate_spec(spec) and _validate_pre(prereleases):
+                self._spec = spec
+                self._prereleases = prereleases
+                return
+
+        raise TypeError(f"Cannot restore Specifier from {state!r}")
+
+    @property
+    def operator(self) -> str:
+        """The operator of this specifier.
+
+        >>> Specifier("==1.2.3").operator
+        '=='
+        """
+        return self._spec[0]
+
+    @property
+    def version(self) -> str:
+        """The version of this specifier.
+
+        >>> Specifier("==1.2.3").version
+        '1.2.3'
+        """
+        return self._spec[1]
+
+    def __repr__(self) -> str:
+        """A representation of the Specifier that shows all internal state.
+
+        >>> Specifier('>=1.0.0')
+        <Specifier('>=1.0.0')>
+        >>> Specifier('>=1.0.0', prereleases=False)
+        <Specifier('>=1.0.0', prereleases=False)>
+        >>> Specifier('>=1.0.0', prereleases=True)
+        <Specifier('>=1.0.0', prereleases=True)>
+        """
+        pre = (
+            f", prereleases={self.prereleases!r}"
+            if self._prereleases is not None
+            else ""
+        )
+
+        return f"<{self.__class__.__name__}({str(self)!r}{pre})>"
+
+    def __str__(self) -> str:
+        """A string representation of the Specifier that can be round-tripped.
+
+        >>> str(Specifier('>=1.0.0'))
+        '>=1.0.0'
+        >>> str(Specifier('>=1.0.0', prereleases=False))
+        '>=1.0.0'
+        """
+        return "{}{}".format(*self._spec)
+
+    @property
+    def _canonical_spec(self) -> tuple[str, str]:
+        operator, version = self._spec
+        if operator == "===" or version.endswith(".*"):
+            return operator, version
+
+        spec_version = self._require_spec_version(version)
+
+        canonical_version = canonicalize_version(
+            spec_version, strip_trailing_zero=(operator != "~=")
+        )
+
+        return operator, canonical_version
+
+    def __hash__(self) -> int:
+        return hash(self._canonical_spec)
+
+    def __eq__(self, other: object) -> bool:
+        """Whether or not the two Specifier-like objects are equal.
+
+        :param other: The other object to check against.
+
+        The value of :attr:`prereleases` is ignored.
+
+        >>> Specifier("==1.2.3") == Specifier("== 1.2.3.0")
+        True
+        >>> (Specifier("==1.2.3", prereleases=False) ==
+        ...  Specifier("==1.2.3", prereleases=True))
+        True
+        >>> Specifier("==1.2.3") == "==1.2.3"
+        True
+        >>> Specifier("==1.2.3") == Specifier("==1.2.4")
+        False
+        >>> Specifier("==1.2.3") == Specifier("~=1.2.3")
+        False
+        """
+        if isinstance(other, str):
+            try:
+                other = self.__class__(str(other))
+            except InvalidSpecifier:
+                return NotImplemented
+        elif not isinstance(other, self.__class__):
+            return NotImplemented
+
+        return self._canonical_spec == other._canonical_spec
+
+    def _get_operator(self, op: str) -> CallableOperator:
+        operator_callable: CallableOperator = getattr(
+            self, f"_compare_{self._operators[op]}"
+        )
+        return operator_callable
+
+    def _compare_compatible(self, prospective: Version, spec: str) -> bool:
+        # Compatible releases have an equivalent combination of >= and ==. That
+        # is that ~=2.2 is equivalent to >=2.2,==2.*. This allows us to
+        # implement this in terms of the other specifiers instead of
+        # implementing it ourselves. The only thing we need to do is construct
+        # the other specifiers.
+
+        # We want everything but the last item in the version, but we want to
+        # ignore suffix segments.
+        prefix = _version_join(
+            list(itertools.takewhile(_is_not_suffix, _version_split(spec)))[:-1]
+        )
+
+        # Add the prefix notation to the end of our string
+        prefix += ".*"
+
+        return (self._compare_greater_than_equal(prospective, spec)) and (
+            self._compare_equal(prospective, prefix)
+        )
+
+    def _get_wildcard_split(self, spec: str) -> tuple[list[str], int]:
+        """Cached split of a wildcard spec into components and numeric length.
+
+        >>> Specifier("==1.*")._get_wildcard_split("1.*")
+        (['0', '1'], 2)
+        >>> Specifier("==3.10.*")._get_wildcard_split("3.10.*")
+        (['0', '3', '10'], 3)
+        """
+        wildcard_split = self._wildcard_split
+        if wildcard_split is None:
+            normalized = canonicalize_version(spec[:-2], strip_trailing_zero=False)
+            split_spec = _version_split(normalized)
+            wildcard_split = (split_spec, _numeric_prefix_len(split_spec))
+            self._wildcard_split = wildcard_split
+        return wildcard_split
+
+    def _compare_equal(self, prospective: Version, spec: str) -> bool:
+        # We need special logic to handle prefix matching
+        if spec.endswith(".*"):
+            split_spec, spec_numeric_len = self._get_wildcard_split(spec)
+
+            # In the case of prefix matching we want to ignore local segment.
+            normalized_prospective = canonicalize_version(
+                _public_version(prospective), strip_trailing_zero=False
+            )
+            # Split the prospective version out by bangs and dots, and pretend
+            # that there is an implicit dot in between a release segment and
+            # a pre-release segment.
+            split_prospective = _version_split(normalized_prospective)
+
+            # 0-pad the prospective version before shortening it to get the correct
+            # shortened version.
+            padded_prospective = _left_pad(split_prospective, spec_numeric_len)
+
+            # Shorten the prospective version to be the same length as the spec
+            # so that we can determine if the specifier is a prefix of the
+            # prospective version or not.
+            shortened_prospective = padded_prospective[: len(split_spec)]
+
+            return shortened_prospective == split_spec
+        else:
+            # Convert our spec string into a Version
+            spec_version = self._require_spec_version(spec)
+
+            # If the specifier does not have a local segment, then we want to
+            # act as if the prospective version also does not have a local
+            # segment.
+            if not spec_version.local:
+                prospective = _public_version(prospective)
+
+            return prospective == spec_version
+
+    def _compare_not_equal(self, prospective: Version, spec: str) -> bool:
+        return not self._compare_equal(prospective, spec)
+
+    def _compare_less_than_equal(self, prospective: Version, spec: str) -> bool:
+        # NB: Local version identifiers are NOT permitted in the version
+        # specifier, so local version labels can be universally removed from
+        # the prospective version.
+        return _public_version(prospective) <= self._require_spec_version(spec)
+
+    def _compare_greater_than_equal(self, prospective: Version, spec: str) -> bool:
+        # NB: Local version identifiers are NOT permitted in the version
+        # specifier, so local version labels can be universally removed from
+        # the prospective version.
+        return _public_version(prospective) >= self._require_spec_version(spec)
+
+    def _compare_less_than(self, prospective: Version, spec_str: str) -> bool:
+        # Convert our spec to a Version instance, since we'll want to work with
+        # it as a version.
+        spec = self._require_spec_version(spec_str)
+
+        # Check to see if the prospective version is less than the spec
+        # version. If it's not we can short circuit and just return False now
+        # instead of doing extra unneeded work.
+        if not prospective < spec:
+            return False
+
+        # The spec says: "<V MUST NOT allow a pre-release of the specified
+        # version unless the specified version is itself a pre-release."
+        if (
+            not spec.is_prerelease
+            and prospective.is_prerelease
+            and prospective >= _earliest_prerelease(spec)
+        ):
+            return False
+
+        # If we've gotten to here, it means that prospective version is both
+        # less than the spec version *and* it's not a pre-release of the same
+        # version in the spec.
+        return True
+
+    def _compare_greater_than(self, prospective: Version, spec_str: str) -> bool:
+        # Convert our spec to a Version instance, since we'll want to work with
+        # it as a version.
+        spec = self._require_spec_version(spec_str)
+
+        # Check to see if the prospective version is greater than the spec
+        # version. If it's not we can short circuit and just return False now
+        # instead of doing extra unneeded work.
+        if not prospective > spec:
+            return False
+
+        # The spec says: ">V MUST NOT allow a post-release of the specified
+        # version unless the specified version is itself a post-release."
+        if (
+            not spec.is_postrelease
+            and prospective.is_postrelease
+            and _post_base(prospective) == spec
+        ):
+            return False
+
+        # Per the spec: ">V MUST NOT match a local version of the specified
+        # version". A "local version of V" is any version whose public part
+        # equals V. So >1.0a1 must not match 1.0a1+local, but must still
+        # match 1.0a2+local.
+        if prospective.local is not None and _public_version(prospective) == spec:
+            return False
+
+        # If we've gotten to here, it means that prospective version is both
+        # greater than the spec version *and* it's not a pre-release of the
+        # same version in the spec.
+        return True
+
+    def _compare_arbitrary(self, prospective: Version | str, spec: str) -> bool:
+        return str(prospective).lower() == str(spec).lower()
+
+    def __contains__(self, item: str | Version) -> bool:
+        """Return whether or not the item is contained in this specifier.
+
+        :param item: The item to check for.
+
+        This is used for the ``in`` operator and behaves the same as
+        :meth:`contains` with no ``prereleases`` argument passed.
+
+        >>> "1.2.3" in Specifier(">=1.2.3")
+        True
+        >>> Version("1.2.3") in Specifier(">=1.2.3")
+        True
+        >>> "1.0.0" in Specifier(">=1.2.3")
+        False
+        >>> "1.3.0a1" in Specifier(">=1.2.3")
+        True
+        >>> "1.3.0a1" in Specifier(">=1.2.3", prereleases=True)
+        True
+        """
+        return self.contains(item)
+
+    def contains(self, item: UnparsedVersion, prereleases: bool | None = None) -> bool:
+        """Return whether or not the item is contained in this specifier.
+
+        :param item:
+            The item to check for, which can be a version string or a
+            :class:`Version` instance.
+        :param prereleases:
+            Whether or not to match prereleases with this Specifier. If set to
+            ``None`` (the default), it will follow the recommendation from
+            :pep:`440` and match prereleases, as there are no other versions.
+
+        >>> Specifier(">=1.2.3").contains("1.2.3")
+        True
+        >>> Specifier(">=1.2.3").contains(Version("1.2.3"))
+        True
+        >>> Specifier(">=1.2.3").contains("1.0.0")
+        False
+        >>> Specifier(">=1.2.3").contains("1.3.0a1")
+        True
+        >>> Specifier(">=1.2.3", prereleases=False).contains("1.3.0a1")
+        False
+        >>> Specifier(">=1.2.3").contains("1.3.0a1")
+        True
+        """
+
+        return bool(list(self.filter([item], prereleases=prereleases)))
+
+    @typing.overload
+    def filter(
+        self,
+        iterable: Iterable[UnparsedVersionVar],
+        prereleases: bool | None = None,
+        key: None = ...,
+    ) -> Iterator[UnparsedVersionVar]: ...
+
+    @typing.overload
+    def filter(
+        self,
+        iterable: Iterable[T],
+        prereleases: bool | None = None,
+        key: Callable[[T], UnparsedVersion] = ...,
+    ) -> Iterator[T]: ...
+
+    def filter(
+        self,
+        iterable: Iterable[Any],
+        prereleases: bool | None = None,
+        key: Callable[[Any], UnparsedVersion] | None = None,
+    ) -> Iterator[Any]:
+        """Filter items in the given iterable, that match the specifier.
+
+        :param iterable:
+            An iterable that can contain version strings and :class:`Version` instances.
+            The items in the iterable will be filtered according to the specifier.
+        :param prereleases:
+            Whether or not to allow prereleases in the returned iterator. If set to
+            ``None`` (the default), it will follow the recommendation from :pep:`440`
+            and match prereleases if there are no other versions.
+        :param key:
+            A callable that takes a single argument (an item from the iterable) and
+            returns a version string or :class:`Version` instance to be used for
+            filtering.
+
+        >>> list(Specifier(">=1.2.3").filter(["1.2", "1.3", "1.5a1"]))
+        ['1.3']
+        >>> list(Specifier(">=1.2.3").filter(["1.2", "1.2.3", "1.3", Version("1.4")]))
+        ['1.2.3', '1.3', <Version('1.4')>]
+        >>> list(Specifier(">=1.2.3").filter(["1.2", "1.5a1"]))
+        ['1.5a1']
+        >>> list(Specifier(">=1.2.3").filter(["1.3", "1.5a1"], prereleases=True))
+        ['1.3', '1.5a1']
+        >>> list(Specifier(">=1.2.3", prereleases=True).filter(["1.3", "1.5a1"]))
+        ['1.3', '1.5a1']
+        >>> list(Specifier(">=1.2.3").filter(
+        ... [{"ver": "1.2"}, {"ver": "1.3"}],
+        ... key=lambda x: x["ver"]))
+        [{'ver': '1.3'}]
+        """
+        prereleases_versions = []
+        found_non_prereleases = False
+
+        # Determine if to include prereleases by default
+        include_prereleases = (
+            prereleases if prereleases is not None else self.prereleases
+        )
+
+        # Get the matching operator
+        operator_callable = self._get_operator(self.operator)
+
+        # Filter versions
+        for version in iterable:
+            parsed_version = _coerce_version(version if key is None else key(version))
+            match = False
+            if parsed_version is None:
+                # === operator can match arbitrary (non-version) strings
+                if self.operator == "===" and self._compare_arbitrary(
+                    version, self.version
+                ):
+                    yield version
+            elif self.operator == "===":
+                match = self._compare_arbitrary(
+                    version if key is None else key(version), self.version
+                )
+            else:
+                match = operator_callable(parsed_version, self.version)
+
+            if match and parsed_version is not None:
+                # If it's not a prerelease or prereleases are allowed, yield it directly
+                if not parsed_version.is_prerelease or include_prereleases:
+                    found_non_prereleases = True
+                    yield version
+                # Otherwise collect prereleases for potential later use
+                elif prereleases is None and self._prereleases is not False:
+                    prereleases_versions.append(version)
+
+        # If no non-prereleases were found and prereleases weren't
+        # explicitly forbidden, yield the collected prereleases
+        if (
+            not found_non_prereleases
+            and prereleases is None
+            and self._prereleases is not False
+        ):
+            yield from prereleases_versions
+
+
+_prefix_regex = re.compile(r"([0-9]+)((?:a|b|c|rc)[0-9]+)")
+
+
+def _pep440_filter_prereleases(
+    iterable: Iterable[Any], key: Callable[[Any], UnparsedVersion] | None
+) -> Iterator[Any]:
+    """Filter per PEP 440: exclude prereleases unless no finals exist."""
+    # Two lists used:
+    #   * all_nonfinal to preserve order if no finals exist
+    #   * arbitrary_strings for streaming when first final found
+    all_nonfinal: list[Any] = []
+    arbitrary_strings: list[Any] = []
+
+    found_final = False
+    for item in iterable:
+        parsed = _coerce_version(item if key is None else key(item))
+
+        if parsed is None:
+            # Arbitrary strings are always included as it is not
+            # possible to determine if they are prereleases,
+            # and they have already passed all specifiers.
+            if found_final:
+                yield item
+            else:
+                arbitrary_strings.append(item)
+                all_nonfinal.append(item)
+            continue
+
+        if not parsed.is_prerelease:
+            # Final release found - flush arbitrary strings, then yield
+            if not found_final:
+                yield from arbitrary_strings
+                found_final = True
+            yield item
+            continue
+
+        # Prerelease - buffer if no finals yet, otherwise skip
+        if not found_final:
+            all_nonfinal.append(item)
+
+    # No finals found - yield all buffered items
+    if not found_final:
+        yield from all_nonfinal
+
+
+def _version_split(version: str) -> list[str]:
+    """Split version into components.
+
+    The split components are intended for version comparison. The logic does
+    not attempt to retain the original version string, so joining the
+    components back with :func:`_version_join` may not produce the original
+    version string.
+    """
+    result: list[str] = []
+
+    epoch, _, rest = version.rpartition("!")
+    result.append(epoch or "0")
+
+    for item in rest.split("."):
+        match = _prefix_regex.fullmatch(item)
+        if match:
+            result.extend(match.groups())
+        else:
+            result.append(item)
+    return result
+
+
+def _version_join(components: list[str]) -> str:
+    """Join split version components into a version string.
+
+    This function assumes the input came from :func:`_version_split`, where the
+    first component must be the epoch (either empty or numeric), and all other
+    components numeric.
+    """
+    epoch, *rest = components
+    return f"{epoch}!{'.'.join(rest)}"
+
+
+def _is_not_suffix(segment: str) -> bool:
+    return not any(
+        segment.startswith(prefix) for prefix in ("dev", "a", "b", "rc", "post")
+    )
+
+
+def _numeric_prefix_len(split: list[str]) -> int:
+    """Count leading numeric components in a :func:`_version_split` result.
+
+    >>> _numeric_prefix_len(["0", "1", "2", "a1"])
+    3
+    """
+    count = 0
+    for segment in split:
+        if not segment.isdigit():
+            break
+        count += 1
+    return count
+
+
+def _left_pad(split: list[str], target_numeric_len: int) -> list[str]:
+    """Pad a :func:`_version_split` result with ``"0"`` segments to reach
+    ``target_numeric_len`` numeric components.  Suffix segments are preserved.
+
+    >>> _left_pad(["0", "1", "a1"], 4)
+    ['0', '1', '0', '0', 'a1']
+    """
+    numeric_len = _numeric_prefix_len(split)
+    pad_needed = target_numeric_len - numeric_len
+    if pad_needed <= 0:
+        return split
+    return [*split[:numeric_len], *(["0"] * pad_needed), *split[numeric_len:]]
+
+
+def _operator_cost(op_entry: tuple[CallableOperator, str, str]) -> int:
+    """Sort key for Cost Based Ordering of specifier operators in _filter_versions.
+
+    Operators run sequentially on a shrinking candidate set, so operators that
+    reject the most versions should run first to minimize work for later ones.
+
+    Tier 0: Exact equality (==, ===), likely to narrow candidates to one version
+    Tier 1: Range checks (>=, <=, >, <), cheap and usually reject a large portion
+    Tier 2: Wildcard equality (==.*) and compatible release (~=), more expensive
+    Tier 3: Exact !=, cheap but rarely rejects
+    Tier 4: Wildcard !=.*, expensive and rarely rejects
+    """
+    _, ver, op = op_entry
+    if op == "==":
+        return 0 if not ver.endswith(".*") else 2
+    if op in (">=", "<=", ">", "<"):
+        return 1
+    if op == "~=":
+        return 2
+    if op == "!=":
+        return 3 if not ver.endswith(".*") else 4
+    if op == "===":
+        return 0
+
+    raise ValueError(f"Unknown operator: {op!r}")  # pragma: no cover
+
+
+class SpecifierSet(BaseSpecifier):
+    """This class abstracts handling of a set of version specifiers.
+
+    It can be passed a single specifier (``>=3.0``), a comma-separated list of
+    specifiers (``>=3.0,!=3.1``), or no specifier at all.
+
+    Instances are safe to serialize with :mod:`pickle`. They use a stable
+    format so the same pickle can be loaded in future packaging
+    releases.
+
+    .. versionchanged:: 26.2
+
+        Added a stable pickle format. Pickles created with
+        packaging 26.2+ can be unpickled with future releases.
+        Backward compatibility with pickles from
+        packaging < 26.2 is supported but may be removed in a future
+        release.
+    """
+
+    __slots__ = (
+        "_canonicalized",
+        "_has_arbitrary",
+        "_is_unsatisfiable",
+        "_prereleases",
+        "_resolved_ops",
+        "_specs",
+    )
+
+    def __init__(
+        self,
+        specifiers: str | Iterable[Specifier] = "",
+        prereleases: bool | None = None,
+    ) -> None:
+        """Initialize a SpecifierSet instance.
+
+        :param specifiers:
+            The string representation of a specifier or a comma-separated list of
+            specifiers which will be parsed and normalized before use.
+            May also be an iterable of ``Specifier`` instances, which will be used
+            as is.
+        :param prereleases:
+            This tells the SpecifierSet if it should accept prerelease versions if
+            applicable or not. The default of ``None`` will autodetect it from the
+            given specifiers.
+
+        :raises InvalidSpecifier:
+            If the given ``specifiers`` are not parseable than this exception will be
+            raised.
+        """
+
+        if isinstance(specifiers, str):
+            # Split on `,` to break each individual specifier into its own item, and
+            # strip each item to remove leading/trailing whitespace.
+            split_specifiers = [s.strip() for s in specifiers.split(",") if s.strip()]
+
+            self._specs: tuple[Specifier, ...] = tuple(map(Specifier, split_specifiers))
+            # Fast substring check; avoids iterating parsed specs.
+            self._has_arbitrary = "===" in specifiers
+        else:
+            self._specs = tuple(specifiers)
+            # Substring check works for both Specifier objects and plain
+            # strings (setuptools passes lists of strings).
+            self._has_arbitrary = any("===" in str(s) for s in self._specs)
+
+        self._canonicalized = len(self._specs) <= 1
+        self._resolved_ops: list[tuple[CallableOperator, str, str]] | None = None
+
+        # Store our prereleases value so we can use it later to determine if
+        # we accept prereleases or not.
+        self._prereleases = prereleases
+
+        self._is_unsatisfiable: bool | None = None
+
+    def _canonical_specs(self) -> tuple[Specifier, ...]:
+        """Deduplicate, sort, and cache specs for order-sensitive operations."""
+        if not self._canonicalized:
+            self._specs = tuple(dict.fromkeys(sorted(self._specs, key=str)))
+            self._canonicalized = True
+            self._resolved_ops = None
+            self._is_unsatisfiable = None
+        return self._specs
+
+    @property
+    def prereleases(self) -> bool | None:
+        # If we have been given an explicit prerelease modifier, then we'll
+        # pass that through here.
+        if self._prereleases is not None:
+            return self._prereleases
+
+        # If we don't have any specifiers, and we don't have a forced value,
+        # then we'll just return None since we don't know if this should have
+        # pre-releases or not.
+        if not self._specs:
+            return None
+
+        # Otherwise we'll see if any of the given specifiers accept
+        # prereleases, if any of them do we'll return True, otherwise False.
+        if any(s.prereleases for s in self._specs):
+            return True
+
+        return None
+
+    @prereleases.setter
+    def prereleases(self, value: bool | None) -> None:
+        self._prereleases = value
+        self._is_unsatisfiable = None
+
+    def __getstate__(self) -> tuple[tuple[Specifier, ...], bool | None]:
+        # Return state as a 2-item tuple for compactness:
+        #   (specs, prereleases)
+        # Cache members are excluded and will be recomputed on demand.
+        return (self._specs, self._prereleases)
+
+    def __setstate__(self, state: object) -> None:
+        # Always discard cached values - they will be recomputed on demand.
+        self._resolved_ops = None
+        self._is_unsatisfiable = None
+
+        if isinstance(state, tuple):
+            if len(state) == 2:
+                # New format (26.2+): (specs, prereleases)
+                specs, prereleases = state
+                if (
+                    isinstance(specs, tuple)
+                    and all(isinstance(s, Specifier) for s in specs)
+                    and _validate_pre(prereleases)
+                ):
+                    self._specs = specs
+                    self._prereleases = prereleases
+                    self._canonicalized = len(specs) <= 1
+                    self._has_arbitrary = any("===" in str(s) for s in specs)
+                    return
+            if len(state) == 2 and isinstance(state[1], dict):
+                # Format (packaging 26.0-26.1): (None, {slot: value}).
+                _, slot_dict = state
+                specs = slot_dict.get("_specs", ())
+                prereleases = slot_dict.get("_prereleases")
+                # Convert frozenset to tuple (26.0 stored as frozenset)
+                if isinstance(specs, frozenset):
+                    specs = tuple(sorted(specs, key=str))
+                if (
+                    isinstance(specs, tuple)
+                    and all(isinstance(s, Specifier) for s in specs)
+                    and _validate_pre(prereleases)
+                ):
+                    self._specs = specs
+                    self._prereleases = prereleases
+                    self._canonicalized = len(self._specs) <= 1
+                    self._has_arbitrary = any("===" in str(s) for s in self._specs)
+                    return
+        if isinstance(state, dict):
+            # Old format (packaging <= 25.x, no __slots__): state is a plain dict.
+            specs = state.get("_specs", ())
+            prereleases = state.get("_prereleases")
+            # Convert frozenset to tuple (26.0 stored as frozenset)
+            if isinstance(specs, frozenset):
+                specs = tuple(sorted(specs, key=str))
+            if (
+                isinstance(specs, tuple)
+                and all(isinstance(s, Specifier) for s in specs)
+                and _validate_pre(prereleases)
+            ):
+                self._specs = specs
+                self._prereleases = prereleases
+                self._canonicalized = len(self._specs) <= 1
+                self._has_arbitrary = any("===" in str(s) for s in self._specs)
+                return
+
+        raise TypeError(f"Cannot restore SpecifierSet from {state!r}")
+
+    def __repr__(self) -> str:
+        """A representation of the specifier set that shows all internal state.
+
+        Note that the ordering of the individual specifiers within the set may not
+        match the input string.
+
+        >>> SpecifierSet('>=1.0.0,!=2.0.0')
+        <SpecifierSet('!=2.0.0,>=1.0.0')>
+        >>> SpecifierSet('>=1.0.0,!=2.0.0', prereleases=False)
+        <SpecifierSet('!=2.0.0,>=1.0.0', prereleases=False)>
+        >>> SpecifierSet('>=1.0.0,!=2.0.0', prereleases=True)
+        <SpecifierSet('!=2.0.0,>=1.0.0', prereleases=True)>
+        """
+        pre = (
+            f", prereleases={self.prereleases!r}"
+            if self._prereleases is not None
+            else ""
+        )
+
+        return f"<{self.__class__.__name__}({str(self)!r}{pre})>"
+
+    def __str__(self) -> str:
+        """A string representation of the specifier set that can be round-tripped.
+
+        Note that the ordering of the individual specifiers within the set may not
+        match the input string.
+
+        >>> str(SpecifierSet(">=1.0.0,!=1.0.1"))
+        '!=1.0.1,>=1.0.0'
+        >>> str(SpecifierSet(">=1.0.0,!=1.0.1", prereleases=False))
+        '!=1.0.1,>=1.0.0'
+        """
+        return ",".join(str(s) for s in self._canonical_specs())
+
+    def __hash__(self) -> int:
+        return hash(self._canonical_specs())
+
+    def __and__(self, other: SpecifierSet | str) -> SpecifierSet:
+        """Return a SpecifierSet which is a combination of the two sets.
+
+        :param other: The other object to combine with.
+
+        >>> SpecifierSet(">=1.0.0,!=1.0.1") & '<=2.0.0,!=2.0.1'
+        <SpecifierSet('!=1.0.1,!=2.0.1,<=2.0.0,>=1.0.0')>
+        >>> SpecifierSet(">=1.0.0,!=1.0.1") & SpecifierSet('<=2.0.0,!=2.0.1')
+        <SpecifierSet('!=1.0.1,!=2.0.1,<=2.0.0,>=1.0.0')>
+        """
+        if isinstance(other, str):
+            other = SpecifierSet(other)
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        specifier = SpecifierSet()
+        specifier._specs = self._specs + other._specs
+        specifier._canonicalized = len(specifier._specs) <= 1
+        specifier._has_arbitrary = self._has_arbitrary or other._has_arbitrary
+        specifier._resolved_ops = None
+
+        # Combine prerelease settings: use common or non-None value
+        if self._prereleases is None or self._prereleases == other._prereleases:
+            specifier._prereleases = other._prereleases
+        elif other._prereleases is None:
+            specifier._prereleases = self._prereleases
+        else:
+            raise ValueError(
+                "Cannot combine SpecifierSets with True and False prerelease overrides."
+            )
+
+        return specifier
+
+    def __eq__(self, other: object) -> bool:
+        """Whether or not the two SpecifierSet-like objects are equal.
+
+        :param other: The other object to check against.
+
+        The value of :attr:`prereleases` is ignored.
+
+        >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0,!=1.0.1")
+        True
+        >>> (SpecifierSet(">=1.0.0,!=1.0.1", prereleases=False) ==
+        ...  SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True))
+        True
+        >>> SpecifierSet(">=1.0.0,!=1.0.1") == ">=1.0.0,!=1.0.1"
+        True
+        >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0")
+        False
+        >>> SpecifierSet(">=1.0.0,!=1.0.1") == SpecifierSet(">=1.0.0,!=1.0.2")
+        False
+        """
+        if isinstance(other, (str, Specifier)):
+            other = SpecifierSet(str(other))
+        elif not isinstance(other, SpecifierSet):
+            return NotImplemented
+
+        return self._canonical_specs() == other._canonical_specs()
+
+    def __len__(self) -> int:
+        """Returns the number of specifiers in this specifier set."""
+        return len(self._specs)
+
+    def __iter__(self) -> Iterator[Specifier]:
+        """
+        Returns an iterator over all the underlying :class:`Specifier` instances
+        in this specifier set.
+
+        >>> sorted(SpecifierSet(">=1.0.0,!=1.0.1"), key=str)
+        [<Specifier('!=1.0.1')>, <Specifier('>=1.0.0')>]
+        """
+        return iter(self._specs)
+
+    def _get_ranges(self) -> Sequence[_VersionRange]:
+        """Intersect all specifiers into a single list of version ranges.
+
+        Returns an empty list when unsatisfiable.  ``===`` specs are
+        modeled as full range; string matching is checked separately
+        by :meth:`_check_arbitrary_unsatisfiable`.
+        """
+        specs = self._specs
+
+        result: Sequence[_VersionRange] | None = None
+        for s in specs:
+            if result is None:
+                result = s._to_ranges()
+            else:
+                result = _intersect_ranges(result, s._to_ranges())
+                if not result:
+                    break
+
+        if result is None:  # pragma: no cover
+            raise RuntimeError("_get_ranges called with no specs")
+        return result
+
+    def is_unsatisfiable(self) -> bool:
+        """Check whether this specifier set can never be satisfied.
+
+        Returns True if no version can satisfy all specifiers simultaneously.
+
+        >>> SpecifierSet(">=2.0,<1.0").is_unsatisfiable()
+        True
+        >>> SpecifierSet(">=1.0,<2.0").is_unsatisfiable()
+        False
+        >>> SpecifierSet("").is_unsatisfiable()
+        False
+        >>> SpecifierSet("==1.0,!=1.0").is_unsatisfiable()
+        True
+        """
+        cached = self._is_unsatisfiable
+        if cached is not None:
+            return cached
+
+        if not self._specs:
+            self._is_unsatisfiable = False
+            return False
+
+        result = not self._get_ranges()
+
+        if not result:
+            result = self._check_arbitrary_unsatisfiable()
+
+        if not result and self.prereleases is False:
+            result = self._check_prerelease_only_ranges()
+
+        self._is_unsatisfiable = result
+        return result
+
+    def _check_prerelease_only_ranges(self) -> bool:
+        """With prereleases=False, check if every range contains only
+        pre-release versions (which would be excluded from matching)."""
+        for lower, upper in self._get_ranges():
+            nearest = _nearest_non_prerelease(lower.version)
+            if nearest is None:
+                return False
+            if upper.version is None or nearest < upper.version:
+                return False
+            if nearest == upper.version and upper.inclusive:
+                return False
+        return True
+
+    def _check_arbitrary_unsatisfiable(self) -> bool:
+        """Check === (arbitrary equality) specs for unsatisfiability.
+
+        === uses case-insensitive string comparison, so the only candidate
+        that can match ``===V`` is the literal string V.  This method
+        checks whether that candidate is excluded by other specifiers.
+        """
+        arbitrary = [s for s in self._specs if s.operator == "==="]
+        if not arbitrary:
+            return False
+
+        # Multiple === must agree on the same string (case-insensitive).
+        first = arbitrary[0].version.lower()
+        if any(s.version.lower() != first for s in arbitrary[1:]):
+            return True
+
+        # The sole candidate is the === version string.  Check whether
+        # it can satisfy every standard spec.
+        candidate = _coerce_version(arbitrary[0].version)
+
+        # With prereleases=False, a prerelease candidate is excluded
+        # by contains() before the === string check even runs.
+        if (
+            self.prereleases is False
+            and candidate is not None
+            and candidate.is_prerelease
+        ):
+            return True
+
+        standard = [s for s in self._specs if s.operator != "==="]
+        if not standard:
+            return False
+
+        if candidate is None:
+            # Unparsable string cannot satisfy any standard spec.
+            return True
+
+        return not all(s.contains(candidate) for s in standard)
+
+    def __contains__(self, item: UnparsedVersion) -> bool:
+        """Return whether or not the item is contained in this specifier.
+
+        :param item: The item to check for.
+
+        This is used for the ``in`` operator and behaves the same as
+        :meth:`contains` with no ``prereleases`` argument passed.
+
+        >>> "1.2.3" in SpecifierSet(">=1.0.0,!=1.0.1")
+        True
+        >>> Version("1.2.3") in SpecifierSet(">=1.0.0,!=1.0.1")
+        True
+        >>> "1.0.1" in SpecifierSet(">=1.0.0,!=1.0.1")
+        False
+        >>> "1.3.0a1" in SpecifierSet(">=1.0.0,!=1.0.1")
+        True
+        >>> "1.3.0a1" in SpecifierSet(">=1.0.0,!=1.0.1", prereleases=True)
+        True
+        """
+        return self.contains(item)
+
+    def contains(
+        self,
+        item: UnparsedVersion,
+        prereleases: bool | None = None,
+        installed: bool | None = None,
+    ) -> bool:
+        """Return whether or not the item is contained in this SpecifierSet.
+
+        :param item:
+            The item to check for, which can be a version string or a
+            :class:`Version` instance.
+        :param prereleases:
+            Whether or not to match prereleases with this SpecifierSet. If set to
+            ``None`` (the default), it will follow the recommendation from :pep:`440`
+            and match prereleases, as there are no other versions.
+        :param installed:
+            Whether or not the item is installed. If set to ``True``, it will
+            accept prerelease versions even if the specifier does not allow them.
+
+        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.2.3")
+        True
+        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains(Version("1.2.3"))
+        True
+        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.0.1")
+        False
+        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.3.0a1")
+        True
+        >>> SpecifierSet(">=1.0.0,!=1.0.1", prereleases=False).contains("1.3.0a1")
+        False
+        >>> SpecifierSet(">=1.0.0,!=1.0.1").contains("1.3.0a1", prereleases=True)
+        True
+        """
+        version = _coerce_version(item)
+
+        if version is not None and installed and version.is_prerelease:
+            prereleases = True
+
+        # When item is a string and === is involved, keep it as-is
+        # so the comparison isn't done against the normalized form.
+        if version is None or (self._has_arbitrary and not isinstance(item, Version)):
+            check_item = item
+        else:
+            check_item = version
+        return bool(list(self.filter([check_item], prereleases=prereleases)))
+
+    @typing.overload
+    def filter(
+        self,
+        iterable: Iterable[UnparsedVersionVar],
+        prereleases: bool | None = None,
+        key: None = ...,
+    ) -> Iterator[UnparsedVersionVar]: ...
+
+    @typing.overload
+    def filter(
+        self,
+        iterable: Iterable[T],
+        prereleases: bool | None = None,
+        key: Callable[[T], UnparsedVersion] = ...,
+    ) -> Iterator[T]: ...
+
+    def filter(
+        self,
+        iterable: Iterable[Any],
+        prereleases: bool | None = None,
+        key: Callable[[Any], UnparsedVersion] | None = None,
+    ) -> Iterator[Any]:
+        """Filter items in the given iterable, that match the specifiers in this set.
+
+        :param iterable:
+            An iterable that can contain version strings and :class:`Version` instances.
+            The items in the iterable will be filtered according to the specifier.
+        :param prereleases:
+            Whether or not to allow prereleases in the returned iterator. If set to
+            ``None`` (the default), it will follow the recommendation from :pep:`440`
+            and match prereleases if there are no other versions.
+        :param key:
+            A callable that takes a single argument (an item from the iterable) and
+            returns a version string or :class:`Version` instance to be used for
+            filtering.
+
+        >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.3", "1.5a1"]))
+        ['1.3']
+        >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.3", Version("1.4")]))
+        ['1.3', <Version('1.4')>]
+        >>> list(SpecifierSet(">=1.2.3").filter(["1.2", "1.5a1"]))
+        ['1.5a1']
+        >>> list(SpecifierSet(">=1.2.3").filter(["1.3", "1.5a1"], prereleases=True))
+        ['1.3', '1.5a1']
+        >>> list(SpecifierSet(">=1.2.3", prereleases=True).filter(["1.3", "1.5a1"]))
+        ['1.3', '1.5a1']
+        >>> list(SpecifierSet(">=1.2.3").filter(
+        ... [{"ver": "1.2"}, {"ver": "1.3"}],
+        ... key=lambda x: x["ver"]))
+        [{'ver': '1.3'}]
+
+        An "empty" SpecifierSet will filter items based on the presence of prerelease
+        versions in the set.
+
+        >>> list(SpecifierSet("").filter(["1.3", "1.5a1"]))
+        ['1.3']
+        >>> list(SpecifierSet("").filter(["1.5a1"]))
+        ['1.5a1']
+        >>> list(SpecifierSet("", prereleases=True).filter(["1.3", "1.5a1"]))
+        ['1.3', '1.5a1']
+        >>> list(SpecifierSet("").filter(["1.3", "1.5a1"], prereleases=True))
+        ['1.3', '1.5a1']
+        """
+        # Determine if we're forcing a prerelease or not, if we're not forcing
+        # one for this particular filter call, then we'll use whatever the
+        # SpecifierSet thinks for whether or not we should support prereleases.
+        if prereleases is None and self.prereleases is not None:
+            prereleases = self.prereleases
+
+        # Filter versions that match all specifiers using Cost Based Ordering.
+        if self._specs:
+            # When prereleases is None, we need to let all versions through
+            # the individual filters, then decide about prereleases at the end
+            # based on whether any non-prereleases matched ALL specs.
+
+            # Fast path: single specifier, delegate directly.
+            if len(self._specs) == 1:
+                filtered = self._specs[0].filter(
+                    iterable,
+                    prereleases=True if prereleases is None else prereleases,
+                    key=key,
+                )
+            else:
+                filtered = self._filter_versions(
+                    iterable,
+                    key,
+                    prereleases=True if prereleases is None else prereleases,
+                )
+
+            if prereleases is not None:
+                return filtered
+
+            return _pep440_filter_prereleases(filtered, key)
+
+        # Handle Empty SpecifierSet.
+        if prereleases is True:
+            return iter(iterable)
+
+        if prereleases is False:
+            return (
+                item
+                for item in iterable
+                if (
+                    (version := _coerce_version(item if key is None else key(item)))
+                    is None
+                    or not version.is_prerelease
+                )
+            )
+
+        # PEP 440: exclude prereleases unless no final releases matched
+        return _pep440_filter_prereleases(iterable, key)
+
+    def _filter_versions(
+        self,
+        iterable: Iterable[Any],
+        key: Callable[[Any], UnparsedVersion] | None,
+        prereleases: bool | None = None,
+    ) -> Iterator[Any]:
+        """Filter versions against all specifiers in a single pass.
+
+        Uses Cost Based Ordering: specifiers are sorted by _operator_cost so
+        that cheap range operators reject versions early, avoiding expensive
+        wildcard or compatible operators on versions that would have been
+        rejected anyway.
+        """
+        # Pre-resolve operators and sort (cached after first call).
+        if self._resolved_ops is None:
+            self._resolved_ops = sorted(
+                (
+                    (spec._get_operator(spec.operator), spec.version, spec.operator)
+                    for spec in self._specs
+                ),
+                key=_operator_cost,
+            )
+        ops = self._resolved_ops
+        exclude_prereleases = prereleases is False
+
+        for item in iterable:
+            parsed = _coerce_version(item if key is None else key(item))
+
+            if parsed is None:
+                # Only === can match non-parseable versions.
+                if all(
+                    op == "===" and str(item).lower() == ver.lower()
+                    for _, ver, op in ops
+                ):
+                    yield item
+            elif exclude_prereleases and parsed.is_prerelease:
+                pass
+            elif all(
+                str(item if key is None else key(item)).lower() == ver.lower()
+                if op == "==="
+                else op_fn(parsed, ver)
+                for op_fn, ver, op in ops
+            ):
+                # Short-circuits on the first failing operator.
+                yield item

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/tags.py

@@ -0,0 +1,932 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import logging
+import operator
+import platform
+import re
+import struct
+import subprocess
+import sys
+import sysconfig
+from importlib.machinery import EXTENSION_SUFFIXES
+from typing import (
+    TYPE_CHECKING,
+    Iterable,
+    Iterator,
+    Sequence,
+    Tuple,
+    TypeVar,
+    cast,
+)
+
+from . import _manylinux, _musllinux
+
+if TYPE_CHECKING:
+    from collections.abc import Callable, Iterable
+    from typing import AbstractSet
+
+
+__all__ = [
+    "INTERPRETER_SHORT_NAMES",
+    "AppleVersion",
+    "PythonVersion",
+    "Tag",
+    "UnsortedTagsError",
+    "android_platforms",
+    "compatible_tags",
+    "cpython_tags",
+    "create_compatible_tags_selector",
+    "generic_tags",
+    "interpreter_name",
+    "interpreter_version",
+    "ios_platforms",
+    "mac_platforms",
+    "parse_tag",
+    "platform_tags",
+    "sys_tags",
+]
+
+
+def __dir__() -> list[str]:
+    return __all__
+
+
+logger = logging.getLogger(__name__)
+
+PythonVersion = Sequence[int]
+AppleVersion = Tuple[int, int]
+_T = TypeVar("_T")
+
+INTERPRETER_SHORT_NAMES: dict[str, str] = {
+    "python": "py",  # Generic.
+    "cpython": "cp",
+    "pypy": "pp",
+    "ironpython": "ip",
+    "jython": "jy",
+}
+
+
+# This function can be unit tested without reloading the module
+# (Unlike _32_BIT_INTERPRETER)
+def _compute_32_bit_interpreter() -> bool:
+    return struct.calcsize("P") == 4
+
+
+_32_BIT_INTERPRETER = _compute_32_bit_interpreter()
+
+
+class UnsortedTagsError(ValueError):
+    """
+    Raised when a tag component is not in sorted order per PEP 425.
+    """
+
+
+class Tag:
+    """
+    A representation of the tag triple for a wheel.
+
+    Instances are considered immutable and thus are hashable. Equality checking
+    is also supported.
+
+    Instances are safe to serialize with :mod:`pickle`. They use a stable
+    format so the same pickle can be loaded in future packaging releases.
+
+    .. versionchanged:: 26.2
+
+        Added a stable pickle format. Pickles created with packaging 26.2+ can
+        be unpickled with future releases.  Backward compatibility with pickles
+        from packaging < 26.2 is supported but may be removed in a future
+        release.
+    """
+
+    __slots__ = ["_abi", "_hash", "_interpreter", "_platform"]
+
+    def __init__(self, interpreter: str, abi: str, platform: str) -> None:
+        """
+        :param str interpreter: The interpreter name, e.g. ``"py"``
+                                (see :attr:`INTERPRETER_SHORT_NAMES` for mapping
+                                well-known interpreter names to their short names).
+        :param str abi: The ABI that a wheel supports, e.g. ``"cp37m"``.
+        :param str platform: The OS/platform the wheel supports,
+                            e.g. ``"win_amd64"``.
+        """
+        self._interpreter = interpreter.lower()
+        self._abi = abi.lower()
+        self._platform = platform.lower()
+        # The __hash__ of every single element in a Set[Tag] will be evaluated each time
+        # that a set calls its `.disjoint()` method, which may be called hundreds of
+        # times when scanning a page of links for packages with tags matching that
+        # Set[Tag]. Pre-computing the value here produces significant speedups for
+        # downstream consumers.
+        self._hash = hash((self._interpreter, self._abi, self._platform))
+
+    @property
+    def interpreter(self) -> str:
+        """
+        The interpreter name, e.g. ``"py"`` (see
+        :attr:`INTERPRETER_SHORT_NAMES` for mapping well-known interpreter
+        names to their short names).
+        """
+        return self._interpreter
+
+    @property
+    def abi(self) -> str:
+        """
+        The supported ABI.
+        """
+        return self._abi
+
+    @property
+    def platform(self) -> str:
+        """
+        The OS/platform.
+        """
+        return self._platform
+
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, Tag):
+            return NotImplemented
+
+        return (
+            (self._hash == other._hash)  # Short-circuit ASAP for perf reasons.
+            and (self._platform == other._platform)
+            and (self._abi == other._abi)
+            and (self._interpreter == other._interpreter)
+        )
+
+    def __hash__(self) -> int:
+        return self._hash
+
+    def __str__(self) -> str:
+        return f"{self._interpreter}-{self._abi}-{self._platform}"
+
+    def __repr__(self) -> str:
+        return f"<{self} @ {id(self)}>"
+
+    def __getstate__(self) -> tuple[str, str, str]:
+        # Return state as a 3-item tuple: (interpreter, abi, platform).
+        # Cache member _hash is excluded and will be recomputed.
+        return (self._interpreter, self._abi, self._platform)
+
+    def __setstate__(self, state: object) -> None:
+        if isinstance(state, tuple):
+            if len(state) == 3 and all(isinstance(s, str) for s in state):
+                # New format (26.2+): (interpreter, abi, platform)
+                self._interpreter, self._abi, self._platform = state
+                self._hash = hash((self._interpreter, self._abi, self._platform))
+                return
+            if len(state) == 2 and isinstance(state[1], dict):
+                # Old format (packaging <= 26.1, __slots__): (None, {slot: value}).
+                _, slots = state
+                try:
+                    interpreter = slots["_interpreter"]
+                    abi = slots["_abi"]
+                    platform = slots["_platform"]
+                except KeyError:
+                    raise TypeError(f"Cannot restore Tag from {state!r}") from None
+                if not all(
+                    isinstance(value, str) for value in (interpreter, abi, platform)
+                ):
+                    raise TypeError(f"Cannot restore Tag from {state!r}")
+                self._interpreter = interpreter.lower()
+                self._abi = abi.lower()
+                self._platform = platform.lower()
+                self._hash = hash((self._interpreter, self._abi, self._platform))
+                return
+        raise TypeError(f"Cannot restore Tag from {state!r}")
+
+
+def parse_tag(tag: str, *, validate_order: bool = False) -> frozenset[Tag]:
+    """
+    Parses the provided tag (e.g. `py3-none-any`) into a frozenset of
+    :class:`Tag` instances.
+
+    Returning a set is required due to the possibility that the tag is a
+    `compressed tag set`_, e.g. ``"py2.py3-none-any"`` which supports both
+    Python 2 and Python 3.
+
+    If **validate_order** is true, compressed tag set components are checked
+    to be in sorted order as required by PEP 425.
+
+    :param str tag: The tag to parse, e.g. ``"py3-none-any"``.
+    :param bool validate_order: Check whether compressed tag set components
+        are in sorted order.
+    :raises UnsortedTagsError: If **validate_order** is true and any compressed tag
+        set component is not in sorted order.
+
+    .. versionadded:: 26.1
+       The *validate_order* parameter.
+    """
+    tags = set()
+    interpreters, abis, platforms = tag.split("-")
+    if validate_order:
+        for component in (interpreters, abis, platforms):
+            parts = component.split(".")
+            if parts != sorted(parts):
+                raise UnsortedTagsError(
+                    f"Tag component {component!r} is not in sorted order per PEP 425"
+                )
+    for interpreter in interpreters.split("."):
+        for abi in abis.split("."):
+            for platform_ in platforms.split("."):
+                tags.add(Tag(interpreter, abi, platform_))
+    return frozenset(tags)
+
+
+def _get_config_var(name: str, warn: bool = False) -> int | str | None:
+    value: int | str | None = sysconfig.get_config_var(name)
+    if value is None and warn:
+        logger.debug(
+            "Config variable '%s' is unset, Python ABI tag may be incorrect", name
+        )
+    return value
+
+
+def _normalize_string(string: str) -> str:
+    return string.replace(".", "_").replace("-", "_").replace(" ", "_")
+
+
+def _is_threaded_cpython(abis: list[str]) -> bool:
+    """
+    Determine if the ABI corresponds to a threaded (`--disable-gil`) build.
+
+    The threaded builds are indicated by a "t" in the abiflags.
+    """
+    if len(abis) == 0:
+        return False
+    # expect e.g., cp313
+    m = re.match(r"cp\d+(.*)", abis[0])
+    if not m:
+        return False
+    abiflags = m.group(1)
+    return "t" in abiflags
+
+
+def _abi3_applies(python_version: PythonVersion, threading: bool) -> bool:
+    """
+    Determine if the Python version supports abi3.
+
+    PEP 384 was first implemented in Python 3.2. The free-threaded
+    builds do not support abi3.
+    """
+    return len(python_version) > 1 and tuple(python_version) >= (3, 2) and not threading
+
+
+def _abi3t_applies(python_version: PythonVersion, threading: bool) -> bool:
+    """
+    Determine if the Python version supports abi3t.
+
+    PEP 803 was first implemented in Python 3.15 but, per PEP 803, this
+    returns tags going back to Python 3.2 to mirror the abi3
+    implementation and leave open the possibility of abi3t wheels
+    supporting older Python versions.
+
+    """
+    return len(python_version) > 1 and tuple(python_version) >= (3, 2) and threading
+
+
+def _cpython_abis(py_version: PythonVersion, warn: bool = False) -> list[str]:
+    py_version = tuple(py_version)  # To allow for version comparison.
+    abis = []
+    version = _version_nodot(py_version[:2])
+    threading = debug = pymalloc = ucs4 = ""
+    with_debug = _get_config_var("Py_DEBUG", warn)
+    has_refcount = hasattr(sys, "gettotalrefcount")
+    # Windows doesn't set Py_DEBUG, so checking for support of debug-compiled
+    # extension modules is the best option.
+    # https://github.com/pypa/pip/issues/3383#issuecomment-173267692
+    has_ext = "_d.pyd" in EXTENSION_SUFFIXES
+    if with_debug or (with_debug is None and (has_refcount or has_ext)):
+        debug = "d"
+    if py_version >= (3, 13) and _get_config_var("Py_GIL_DISABLED", warn):
+        threading = "t"
+    if py_version < (3, 8):
+        with_pymalloc = _get_config_var("WITH_PYMALLOC", warn)
+        if with_pymalloc or with_pymalloc is None:
+            pymalloc = "m"
+        if py_version < (3, 3):
+            unicode_size = _get_config_var("Py_UNICODE_SIZE", warn)
+            if unicode_size == 4 or (
+                unicode_size is None and sys.maxunicode == 0x10FFFF
+            ):
+                ucs4 = "u"
+    elif debug:
+        # Debug builds can also load "normal" extension modules.
+        # We can also assume no UCS-4 or pymalloc requirement.
+        abis.append(f"cp{version}{threading}")
+    abis.insert(0, f"cp{version}{threading}{debug}{pymalloc}{ucs4}")
+    return abis
+
+
+def cpython_tags(
+    python_version: PythonVersion | None = None,
+    abis: Iterable[str] | None = None,
+    platforms: Iterable[str] | None = None,
+    *,
+    warn: bool = False,
+) -> Iterator[Tag]:
+    """
+    Yields the tags for the CPython interpreter.
+
+    The specific tags generated are:
+
+    - ``cp<python_version>-<abi>-<platform>``
+    - ``cp<python_version>-<stable_abi>-<platform>``
+    - ``cp<python_version>-none-<platform>``
+    - ``cp<older version>-<stable_abi>-<platform>`` where "older version" is all older
+      minor versions down to Python 3.2 (when ``abi3`` was introduced)
+
+    If ``python_version`` only provides a major-only version then only
+    user-provided ABIs via ``abis`` and the ``none`` ABI will be used.
+
+    The ``stable_abi`` will be either ``abi3`` or ``abi3t`` if `abi` is a
+    GIL-enabled ABI like `"cp315"` or a free-threaded ABI like `"cp315t"`,
+    respectively.
+
+    :param Sequence python_version: A one- or two-item sequence representing the
+                                 targeted Python version. Defaults to
+                                 ``sys.version_info[:2]``.
+    :param Iterable abis: Iterable of compatible ABIs. Defaults to the ABIs
+                          compatible with the current system.
+    :param Iterable platforms: Iterable of compatible platforms. Defaults to the
+                               platforms compatible with the current system.
+    :param bool warn: Whether warnings should be logged. Defaults to ``False``.
+    """
+    if not python_version:
+        python_version = sys.version_info[:2]
+
+    interpreter = f"cp{_version_nodot(python_version[:2])}"
+
+    if abis is None:
+        abis = _cpython_abis(python_version, warn) if len(python_version) > 1 else []
+    abis = list(abis)
+    # 'abi3' and 'none' are explicitly handled later.
+    for explicit_abi in ("abi3", "none"):
+        try:
+            abis.remove(explicit_abi)
+        except ValueError:  # noqa: PERF203
+            pass
+
+    platforms = list(platforms or platform_tags())
+    for abi in abis:
+        for platform_ in platforms:
+            yield Tag(interpreter, abi, platform_)
+
+    threading = _is_threaded_cpython(abis)
+    use_abi3 = _abi3_applies(python_version, threading)
+    use_abi3t = _abi3t_applies(python_version, threading)
+
+    if use_abi3:
+        yield from (Tag(interpreter, "abi3", platform_) for platform_ in platforms)
+    if use_abi3t:
+        yield from (Tag(interpreter, "abi3t", platform_) for platform_ in platforms)
+
+    yield from (Tag(interpreter, "none", platform_) for platform_ in platforms)
+
+    if use_abi3 or use_abi3t:
+        for minor_version in range(python_version[1] - 1, 1, -1):
+            for platform_ in platforms:
+                version = _version_nodot((python_version[0], minor_version))
+                interpreter = f"cp{version}"
+                if use_abi3:
+                    yield Tag(interpreter, "abi3", platform_)
+                if use_abi3t:
+                    # Support for abi3t was introduced in Python 3.15, but in
+                    # principle abi3t wheels are possible for older limited API
+                    # versions, so allow things like ("cp37", "abi3t", "platform")
+                    yield Tag(interpreter, "abi3t", platform_)
+
+
+def _generic_abi() -> list[str]:
+    """
+    Return the ABI tag based on EXT_SUFFIX.
+    """
+    # The following are examples of `EXT_SUFFIX`.
+    # We want to keep the parts which are related to the ABI and remove the
+    # parts which are related to the platform:
+    # - linux:   '.cpython-310-x86_64-linux-gnu.so' => cp310
+    # - mac:     '.cpython-310-darwin.so'           => cp310
+    # - win:     '.cp310-win_amd64.pyd'             => cp310
+    # - win:     '.pyd'                             => cp37 (uses _cpython_abis())
+    # - pypy:    '.pypy38-pp73-x86_64-linux-gnu.so' => pypy38_pp73
+    # - graalpy: '.graalpy-38-native-x86_64-darwin.dylib'
+    #                                               => graalpy_38_native
+
+    ext_suffix = _get_config_var("EXT_SUFFIX", warn=True)
+    if not isinstance(ext_suffix, str) or ext_suffix[0] != ".":
+        raise SystemError("invalid sysconfig.get_config_var('EXT_SUFFIX')")
+    parts = ext_suffix.split(".")
+    if len(parts) < 3:
+        # CPython3.7 and earlier uses ".pyd" on Windows.
+        return _cpython_abis(sys.version_info[:2])
+    soabi = parts[1]
+    if soabi.startswith("cpython"):
+        # non-windows
+        abi = "cp" + soabi.split("-")[1]
+    elif soabi.startswith("cp"):
+        # windows
+        abi = soabi.split("-")[0]
+    elif soabi.startswith("pypy"):
+        abi = "-".join(soabi.split("-")[:2])
+    elif soabi.startswith("graalpy"):
+        abi = "-".join(soabi.split("-")[:3])
+    elif soabi:
+        # pyston, ironpython, others?
+        abi = soabi
+    else:
+        return []
+    return [_normalize_string(abi)]
+
+
+def generic_tags(
+    interpreter: str | None = None,
+    abis: Iterable[str] | None = None,
+    platforms: Iterable[str] | None = None,
+    *,
+    warn: bool = False,
+) -> Iterator[Tag]:
+    """
+    Yields the tags for an interpreter which requires no specialization.
+
+    This function should be used if one of the other interpreter-specific
+    functions provided by this module is not appropriate (i.e. not calculating
+    tags for a CPython interpreter).
+
+    The specific tags generated are:
+
+    - ``<interpreter>-<abi>-<platform>``
+
+    The ``"none"`` ABI will be added if it was not explicitly provided.
+
+    :param str interpreter: The name of the interpreter. Defaults to being
+                            calculated.
+    :param Iterable abis: Iterable of compatible ABIs. Defaults to the ABIs
+                          compatible with the current system.
+    :param Iterable platforms: Iterable of compatible platforms. Defaults to the
+                               platforms compatible with the current system.
+    :param bool warn: Whether warnings should be logged. Defaults to ``False``.
+    """
+    if not interpreter:
+        interp_name = interpreter_name()
+        interp_version = interpreter_version(warn=warn)
+        interpreter = f"{interp_name}{interp_version}"
+    abis = _generic_abi() if abis is None else list(abis)
+    platforms = list(platforms or platform_tags())
+    if "none" not in abis:
+        abis.append("none")
+    for abi in abis:
+        for platform_ in platforms:
+            yield Tag(interpreter, abi, platform_)
+
+
+def _py_interpreter_range(py_version: PythonVersion) -> Iterator[str]:
+    """
+    Yields Python versions in descending order.
+
+    After the latest version, the major-only version will be yielded, and then
+    all previous versions of that major version.
+    """
+    if len(py_version) > 1:
+        yield f"py{_version_nodot(py_version[:2])}"
+    yield f"py{py_version[0]}"
+    if len(py_version) > 1:
+        for minor in range(py_version[1] - 1, -1, -1):
+            yield f"py{_version_nodot((py_version[0], minor))}"
+
+
+def compatible_tags(
+    python_version: PythonVersion | None = None,
+    interpreter: str | None = None,
+    platforms: Iterable[str] | None = None,
+) -> Iterator[Tag]:
+    """
+    Yields the tags for an interpreter compatible with the Python version
+    specified by ``python_version``.
+
+    The specific tags generated are:
+
+    - ``py*-none-<platform>``
+    - ``<interpreter>-none-any`` if ``interpreter`` is provided
+    - ``py*-none-any``
+
+    :param Sequence python_version: A one- or two-item sequence representing the
+                                 compatible version of Python. Defaults to
+                                 ``sys.version_info[:2]``.
+    :param str interpreter: The name of the interpreter (if known), e.g.
+                            ``"cp38"``. Defaults to the current interpreter.
+    :param Iterable platforms: Iterable of compatible platforms. Defaults to the
+                               platforms compatible with the current system.
+    """
+    if not python_version:
+        python_version = sys.version_info[:2]
+    platforms = list(platforms or platform_tags())
+    for version in _py_interpreter_range(python_version):
+        for platform_ in platforms:
+            yield Tag(version, "none", platform_)
+    if interpreter:
+        yield Tag(interpreter, "none", "any")
+    for version in _py_interpreter_range(python_version):
+        yield Tag(version, "none", "any")
+
+
+def _mac_arch(arch: str, is_32bit: bool = _32_BIT_INTERPRETER) -> str:
+    if not is_32bit:
+        return arch
+
+    if arch.startswith("ppc"):
+        return "ppc"
+
+    return "i386"
+
+
+def _mac_binary_formats(version: AppleVersion, cpu_arch: str) -> list[str]:
+    formats = [cpu_arch]
+    if cpu_arch == "x86_64":
+        if version < (10, 4):
+            return []
+        formats.extend(["intel", "fat64", "fat32"])
+
+    elif cpu_arch == "i386":
+        if version < (10, 4):
+            return []
+        formats.extend(["intel", "fat32", "fat"])
+
+    elif cpu_arch == "ppc64":
+        # TODO: Need to care about 32-bit PPC for ppc64 through 10.2?
+        if version > (10, 5) or version < (10, 4):
+            return []
+        formats.append("fat64")
+
+    elif cpu_arch == "ppc":
+        if version > (10, 6):
+            return []
+        formats.extend(["fat32", "fat"])
+
+    if cpu_arch in {"arm64", "x86_64"}:
+        formats.append("universal2")
+
+    if cpu_arch in {"x86_64", "i386", "ppc64", "ppc", "intel"}:
+        formats.append("universal")
+
+    return formats
+
+
+def mac_platforms(
+    version: AppleVersion | None = None, arch: str | None = None
+) -> Iterator[str]:
+    """
+    Yields the :attr:`~Tag.platform` tags for macOS.
+
+    The `version` parameter is a two-item tuple specifying the macOS version to
+    generate platform tags for. The `arch` parameter is the CPU architecture to
+    generate platform tags for. Both parameters default to the appropriate value
+    for the current system.
+
+    :param tuple version: A two-item tuple representing the version of macOS.
+                          Defaults to the current system's version.
+    :param str arch: The CPU architecture. Defaults to the architecture of the
+                     current system, e.g. ``"x86_64"``.
+
+    .. note::
+        Equivalent support for the other major platforms is purposefully not
+        provided:
+
+        - On Windows, platform compatibility is statically specified
+        - On Linux, code must be run on the system itself to determine
+          compatibility
+    """
+    version_str, _, cpu_arch = platform.mac_ver()
+    if version is None:
+        version = cast("AppleVersion", tuple(map(int, version_str.split(".")[:2])))
+        if version == (10, 16):
+            # When built against an older macOS SDK, Python will report macOS 10.16
+            # instead of the real version.
+            version_str = subprocess.run(
+                [
+                    sys.executable,
+                    "-sS",
+                    "-c",
+                    "import platform; print(platform.mac_ver()[0])",
+                ],
+                check=True,
+                env={"SYSTEM_VERSION_COMPAT": "0"},
+                stdout=subprocess.PIPE,
+                text=True,
+            ).stdout
+            version = cast("AppleVersion", tuple(map(int, version_str.split(".")[:2])))
+
+    if arch is None:
+        arch = _mac_arch(cpu_arch)
+
+    if (10, 0) <= version < (11, 0):
+        # Prior to Mac OS 11, each yearly release of Mac OS bumped the
+        # "minor" version number.  The major version was always 10.
+        major_version = 10
+        for minor_version in range(version[1], -1, -1):
+            compat_version = major_version, minor_version
+            binary_formats = _mac_binary_formats(compat_version, arch)
+            for binary_format in binary_formats:
+                yield f"macosx_{major_version}_{minor_version}_{binary_format}"
+
+    if version >= (11, 0):
+        # Starting with Mac OS 11, each yearly release bumps the major version
+        # number.   The minor versions are now the midyear updates.
+        minor_version = 0
+        for major_version in range(version[0], 10, -1):
+            compat_version = major_version, minor_version
+            binary_formats = _mac_binary_formats(compat_version, arch)
+            for binary_format in binary_formats:
+                yield f"macosx_{major_version}_{minor_version}_{binary_format}"
+
+    if version >= (11, 0):
+        # Mac OS 11 on x86_64 is compatible with binaries from previous releases.
+        # Arm64 support was introduced in 11.0, so no Arm binaries from previous
+        # releases exist.
+        #
+        # However, the "universal2" binary format can have a
+        # macOS version earlier than 11.0 when the x86_64 part of the binary supports
+        # that version of macOS.
+        major_version = 10
+        if arch == "x86_64":
+            for minor_version in range(16, 3, -1):
+                compat_version = major_version, minor_version
+                binary_formats = _mac_binary_formats(compat_version, arch)
+                for binary_format in binary_formats:
+                    yield f"macosx_{major_version}_{minor_version}_{binary_format}"
+        else:
+            for minor_version in range(16, 3, -1):
+                compat_version = major_version, minor_version
+                binary_format = "universal2"
+                yield f"macosx_{major_version}_{minor_version}_{binary_format}"
+
+
+def ios_platforms(
+    version: AppleVersion | None = None, multiarch: str | None = None
+) -> Iterator[str]:
+    """
+
+    Yields the :attr:`~Tag.platform` tags for iOS.
+
+    :param tuple version: A two-item tuple representing the version of iOS.
+                          Defaults to the current system's version.
+    :param str multiarch: The CPU architecture+ABI to be used. This should be in
+                          the format by ``sys.implementation._multiarch`` (e.g.,
+                          ``arm64_iphoneos`` or ``x86_64_iphonesimulator``).
+                          Defaults to the current system's multiarch value.
+
+    .. note::
+        Behavior of this method is undefined if invoked on non-iOS platforms
+        without providing explicit version and multiarch arguments.
+    """
+    if version is None:
+        # if iOS is the current platform, ios_ver *must* be defined. However,
+        # it won't exist for CPython versions before 3.13, which causes a mypy
+        # error.
+        _, release, _, _ = platform.ios_ver()  # type: ignore[attr-defined, unused-ignore]
+        version = cast("AppleVersion", tuple(map(int, release.split(".")[:2])))
+
+    if multiarch is None:
+        multiarch = sys.implementation._multiarch
+    multiarch = multiarch.replace("-", "_")
+
+    ios_platform_template = "ios_{major}_{minor}_{multiarch}"
+
+    # Consider any iOS major.minor version from the version requested, down to
+    # 12.0. 12.0 is the first iOS version that is known to have enough features
+    # to support CPython. Consider every possible minor release up to X.9. There
+    # highest the minor has ever gone is 8 (14.8 and 15.8) but having some extra
+    # candidates that won't ever match doesn't really hurt, and it saves us from
+    # having to keep an explicit list of known iOS versions in the code. Return
+    # the results descending order of version number.
+
+    # If the requested major version is less than 12, there won't be any matches.
+    if version[0] < 12:
+        return
+
+    # Consider the actual X.Y version that was requested.
+    yield ios_platform_template.format(
+        major=version[0], minor=version[1], multiarch=multiarch
+    )
+
+    # Consider every minor version from X.0 to the minor version prior to the
+    # version requested by the platform.
+    for minor in range(version[1] - 1, -1, -1):
+        yield ios_platform_template.format(
+            major=version[0], minor=minor, multiarch=multiarch
+        )
+
+    for major in range(version[0] - 1, 11, -1):
+        for minor in range(9, -1, -1):
+            yield ios_platform_template.format(
+                major=major, minor=minor, multiarch=multiarch
+            )
+
+
+def android_platforms(
+    api_level: int | None = None, abi: str | None = None
+) -> Iterator[str]:
+    """
+    Yields the :attr:`~Tag.platform` tags for Android. If this function is invoked on
+    non-Android platforms, the ``api_level`` and ``abi`` arguments are required.
+
+    :param int api_level: The maximum `API level
+        <https://developer.android.com/tools/releases/platforms>`__ to return. Defaults
+        to the current system's version, as returned by ``platform.android_ver``.
+    :param str abi: The `Android ABI <https://developer.android.com/ndk/guides/abis>`__,
+        e.g. ``arm64_v8a``. Defaults to the current system's ABI , as returned by
+        ``sysconfig.get_platform``. Hyphens and periods will be replaced with
+        underscores.
+    """
+    if platform.system() != "Android" and (api_level is None or abi is None):
+        raise TypeError(
+            "on non-Android platforms, the api_level and abi arguments are required"
+        )
+
+    if api_level is None:
+        # Python 3.13 was the first version to return platform.system() == "Android",
+        # and also the first version to define platform.android_ver().
+        api_level = platform.android_ver().api_level  # type: ignore[attr-defined]
+
+    if abi is None:
+        abi = sysconfig.get_platform().split("-")[-1]
+    abi = _normalize_string(abi)
+
+    # 16 is the minimum API level known to have enough features to support CPython
+    # without major patching. Yield every API level from the maximum down to the
+    # minimum, inclusive.
+    min_api_level = 16
+    for ver in range(api_level, min_api_level - 1, -1):
+        yield f"android_{ver}_{abi}"
+
+
+def _linux_platforms(is_32bit: bool = _32_BIT_INTERPRETER) -> Iterator[str]:
+    linux = _normalize_string(sysconfig.get_platform())
+    if not linux.startswith("linux_"):
+        # we should never be here, just yield the sysconfig one and return
+        yield linux
+        return
+    if is_32bit:
+        if linux == "linux_x86_64":
+            linux = "linux_i686"
+        elif linux == "linux_aarch64":
+            linux = "linux_armv8l"
+    _, arch = linux.split("_", 1)
+    archs = {"armv8l": ["armv8l", "armv7l"]}.get(arch, [arch])
+    yield from _manylinux.platform_tags(archs)
+    yield from _musllinux.platform_tags(archs)
+    for arch in archs:
+        yield f"linux_{arch}"
+
+
+def _emscripten_platforms() -> Iterator[str]:
+    pyemscripten_platform_version = sysconfig.get_config_var(
+        "PYEMSCRIPTEN_PLATFORM_VERSION"
+    )
+    if pyemscripten_platform_version:
+        yield f"pyemscripten_{pyemscripten_platform_version}_wasm32"
+    yield from _generic_platforms()
+
+
+def _generic_platforms() -> Iterator[str]:
+    yield _normalize_string(sysconfig.get_platform())
+
+
+def platform_tags() -> Iterator[str]:
+    """
+    Yields the :attr:`~Tag.platform` tags for the running interpreter.
+    """
+    if platform.system() == "Darwin":
+        return mac_platforms()
+    elif platform.system() == "iOS":
+        return ios_platforms()
+    elif platform.system() == "Android":
+        return android_platforms()
+    elif platform.system() == "Linux":
+        return _linux_platforms()
+    elif platform.system() == "Emscripten":
+        return _emscripten_platforms()
+    else:
+        return _generic_platforms()
+
+
+def interpreter_name() -> str:
+    """
+    Returns the name of the running interpreter.
+
+    Some implementations have a reserved, two-letter abbreviation which will
+    be returned when appropriate.
+
+    This typically acts as the prefix to the :attr:`~Tag.interpreter` tag.
+    """
+    name = sys.implementation.name
+    return INTERPRETER_SHORT_NAMES.get(name) or name
+
+
+def interpreter_version(*, warn: bool = False) -> str:
+    """
+    Returns the running interpreter's version.
+
+    This typically acts as the suffix to the :attr:`~Tag.interpreter` tag.
+
+    :param bool warn: Whether warnings should be logged. Defaults to ``False``.
+    """
+    version = _get_config_var("py_version_nodot", warn=warn)
+    return str(version) if version else _version_nodot(sys.version_info[:2])
+
+
+def _version_nodot(version: PythonVersion) -> str:
+    return "".join(map(str, version))
+
+
+def sys_tags(*, warn: bool = False) -> Iterator[Tag]:
+    """
+    Yields the sequence of tag triples that the running interpreter supports.
+
+    The iterable is ordered so that the best-matching tag is first in the
+    sequence. The exact preferential order to tags is interpreter-specific, but
+    in general the tag importance is in the order of:
+
+    1. Interpreter
+    2. Platform
+    3. ABI
+
+    This order is due to the fact that an ABI is inherently tied to the
+    platform, but platform-specific code is not necessarily tied to the ABI. The
+    interpreter is the most important tag as it dictates basic support for any
+    wheel.
+
+    The function returns an iterable in order to allow for the possible
+    short-circuiting of tag generation if the entire sequence is not necessary
+    and tag calculation happens to be expensive.
+
+    :param bool warn: Whether warnings should be logged. Defaults to ``False``.
+
+    .. versionchanged:: 21.3
+        Added the `pp3-none-any` tag (:issue:`311`).
+    .. versionchanged:: 27.0
+        Added the `abi3t` tag (:issue:`1099`).
+    """
+
+    interp_name = interpreter_name()
+    if interp_name == "cp":
+        yield from cpython_tags(warn=warn)
+    else:
+        yield from generic_tags()
+
+    if interp_name == "pp":
+        interp = "pp3"
+    elif interp_name == "cp":
+        interp = "cp" + interpreter_version(warn=warn)
+    else:
+        interp = None
+    yield from compatible_tags(interpreter=interp)
+
+
+def create_compatible_tags_selector(
+    tags: Iterable[Tag],
+) -> Callable[[Iterable[tuple[_T, AbstractSet[Tag]]]], Iterator[_T]]:
+    """Create a callable to select things compatible with supported tags.
+
+    This function accepts an ordered sequence of tags, with the preferred
+    tags first.
+
+    The returned callable accepts an iterable of tuples (thing, set[Tag]),
+    and returns an iterator of things, with the things with the best
+    matching tags first.
+
+    Example to select compatible wheel filenames:
+
+    >>> from packaging import tags
+    >>> from packaging.utils import parse_wheel_filename
+    >>> selector = tags.create_compatible_tags_selector(tags.sys_tags())
+    >>> filenames = ["foo-1.0-py3-none-any.whl", "foo-1.0-py2-none-any.whl"]
+    >>> list(selector([
+    ...     (filename, parse_wheel_filename(filename)[-1]) for filename in filenames
+    ... ]))
+    ['foo-1.0-py3-none-any.whl']
+
+    .. versionadded:: 26.1
+    """
+    tag_ranks: dict[Tag, int] = {}
+    for rank, tag in enumerate(tags):
+        tag_ranks.setdefault(tag, rank)  # ignore duplicate tags, keep first
+    supported_tags = tag_ranks.keys()
+
+    def selector(
+        tagged_things: Iterable[tuple[_T, AbstractSet[Tag]]],
+    ) -> Iterator[_T]:
+        ranked_things: list[tuple[_T, int]] = []
+        for thing, thing_tags in tagged_things:
+            supported_thing_tags = thing_tags & supported_tags
+            if supported_thing_tags:
+                thing_rank = min(tag_ranks[t] for t in supported_thing_tags)
+                ranked_things.append((thing, thing_rank))
+        return iter(
+            thing for thing, _ in sorted(ranked_things, key=operator.itemgetter(1))
+        )
+
+    return selector

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/utils.py

@@ -0,0 +1,296 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+
+from __future__ import annotations
+
+import re
+from typing import NewType, Tuple, Union, cast
+
+from .tags import Tag, UnsortedTagsError, parse_tag
+from .version import InvalidVersion, Version, _TrimmedRelease
+
+__all__ = [
+    "BuildTag",
+    "InvalidName",
+    "InvalidSdistFilename",
+    "InvalidWheelFilename",
+    "NormalizedName",
+    "canonicalize_name",
+    "canonicalize_version",
+    "is_normalized_name",
+    "parse_sdist_filename",
+    "parse_wheel_filename",
+]
+
+
+def __dir__() -> list[str]:
+    return __all__
+
+
+BuildTag = Union[Tuple[()], Tuple[int, str]]
+
+NormalizedName = NewType("NormalizedName", str)
+"""
+A :class:`typing.NewType` of :class:`str`, representing a normalized name.
+"""
+
+
+class InvalidName(ValueError):
+    """
+    An invalid distribution name; users should refer to the packaging user guide.
+    """
+
+
+class InvalidWheelFilename(ValueError):
+    """
+    An invalid wheel filename was found, users should refer to PEP 427.
+    """
+
+
+class InvalidSdistFilename(ValueError):
+    """
+    An invalid sdist filename was found, users should refer to the packaging user guide.
+    """
+
+
+# Core metadata spec for `Name`
+_validate_regex = re.compile(
+    r"[a-z0-9]|[a-z0-9][a-z0-9._-]*[a-z0-9]", re.IGNORECASE | re.ASCII
+)
+_normalized_regex = re.compile(r"[a-z0-9]|[a-z0-9]([a-z0-9-](?!--))*[a-z0-9]", re.ASCII)
+# PEP 427: The build number must start with a digit.
+_build_tag_regex = re.compile(r"(\d+)(.*)", re.ASCII)
+
+
+def canonicalize_name(name: str, *, validate: bool = False) -> NormalizedName:
+    """
+    This function takes a valid Python package or extra name, and returns the
+    normalized form of it.
+
+    The return type is typed as :class:`NormalizedName`. This allows type
+    checkers to help require that a string has passed through this function
+    before use.
+
+    If **validate** is true, then the function will check if **name** is a valid
+    distribution name before normalizing.
+
+    :param str name: The name to normalize.
+    :param bool validate: Check whether the name is a valid distribution name.
+    :raises InvalidName: If **validate** is true and the name is not an
+        acceptable distribution name.
+
+    >>> from packaging.utils import canonicalize_name
+    >>> canonicalize_name("Django")
+    'django'
+    >>> canonicalize_name("oslo.concurrency")
+    'oslo-concurrency'
+    >>> canonicalize_name("requests")
+    'requests'
+    """
+    if validate and not _validate_regex.fullmatch(name):
+        raise InvalidName(f"name is invalid: {name!r}")
+    # Ensure all ``.`` and ``_`` are ``-``
+    # Emulates ``re.sub(r"[-_.]+", "-", name).lower()`` from PEP 503
+    # Much faster than re, and even faster than str.translate
+    value = name.lower().replace("_", "-").replace(".", "-")
+    # Condense repeats (faster than regex)
+    while "--" in value:
+        value = value.replace("--", "-")
+    return cast("NormalizedName", value)
+
+
+def is_normalized_name(name: str) -> bool:
+    """
+    Check if a name is already normalized (i.e. :func:`canonicalize_name` would
+    roundtrip to the same value).
+
+    :param str name: The name to check.
+
+    >>> from packaging.utils import is_normalized_name
+    >>> is_normalized_name("requests")
+    True
+    >>> is_normalized_name("Django")
+    False
+    """
+    return _normalized_regex.fullmatch(name) is not None
+
+
+def canonicalize_version(
+    version: Version | str, *, strip_trailing_zero: bool = True
+) -> str:
+    """Return a canonical form of a version as a string.
+
+    This function takes a string representing a package version (or a
+    :class:`~packaging.version.Version` instance), and returns the
+    normalized form of it. By default, it strips trailing zeros from
+    the release segment.
+
+    >>> from packaging.utils import canonicalize_version
+    >>> canonicalize_version('1.0.1')
+    '1.0.1'
+
+    Per PEP 625, versions may have multiple canonical forms, differing
+    only by trailing zeros.
+
+    >>> canonicalize_version('1.0.0')
+    '1'
+    >>> canonicalize_version('1.0.0', strip_trailing_zero=False)
+    '1.0.0'
+
+    Invalid versions are returned unaltered.
+
+    >>> canonicalize_version('foo bar baz')
+    'foo bar baz'
+
+    >>> canonicalize_version('1.4.0.0.0')
+    '1.4'
+    """
+    if isinstance(version, str):
+        try:
+            version = Version(version)
+        except InvalidVersion:
+            return str(version)
+    return str(_TrimmedRelease(version) if strip_trailing_zero else version)
+
+
+def parse_wheel_filename(
+    filename: str,
+    *,
+    validate_order: bool = False,
+) -> tuple[NormalizedName, Version, BuildTag, frozenset[Tag]]:
+    """
+    This function takes the filename of a wheel file, and parses it,
+    returning a tuple of name, version, build number, and tags.
+
+    The name part of the tuple is normalized and typed as
+    :class:`NormalizedName`. The version portion is an instance of
+    :class:`~packaging.version.Version`. The build number is ``()`` if
+    there is no build number in the wheel filename, otherwise a
+    two-item tuple of an integer for the leading digits and
+    a string for the rest of the build number. The tags portion is a
+    frozen set of :class:`~packaging.tags.Tag` instances (as the tag
+    string format allows multiple tags to be combined into a single
+    string).
+
+    If **validate_order** is true, compressed tag set components are
+    checked to be in sorted order as required by PEP 425.
+
+    :param str filename: The name of the wheel file.
+    :param bool validate_order: Check whether compressed tag set components
+        are in sorted order.
+    :raises InvalidWheelFilename: If the filename in question
+        does not follow the :ref:`wheel specification
+        <pypug:binary-distribution-format>`.
+
+    >>> from packaging.utils import parse_wheel_filename
+    >>> from packaging.tags import Tag
+    >>> from packaging.version import Version
+    >>> name, ver, build, tags = parse_wheel_filename("foo-1.0-py3-none-any.whl")
+    >>> name
+    'foo'
+    >>> ver == Version('1.0')
+    True
+    >>> tags == {Tag("py3", "none", "any")}
+    True
+    >>> not build
+    True
+
+    .. versionadded:: 26.1
+       The *validate_order* parameter.
+    """
+    if not filename.endswith(".whl"):
+        raise InvalidWheelFilename(
+            f"Invalid wheel filename (extension must be '.whl'): {filename!r}"
+        )
+
+    filename = filename[:-4]
+    dashes = filename.count("-")
+    if dashes not in (4, 5):
+        raise InvalidWheelFilename(
+            f"Invalid wheel filename (wrong number of parts): {filename!r}"
+        )
+
+    parts = filename.split("-", dashes - 2)
+    name_part = parts[0]
+    # See PEP 427 for the rules on escaping the project name.
+    if "__" in name_part or re.match(r"^[\w\d._]*$", name_part, re.UNICODE) is None:
+        raise InvalidWheelFilename(f"Invalid project name: {filename!r}")
+    name = canonicalize_name(name_part)
+
+    try:
+        version = Version(parts[1])
+    except InvalidVersion as e:
+        raise InvalidWheelFilename(
+            f"Invalid wheel filename (invalid version): {filename!r}"
+        ) from e
+
+    if dashes == 5:
+        build_part = parts[2]
+        build_match = _build_tag_regex.match(build_part)
+        if build_match is None:
+            raise InvalidWheelFilename(
+                f"Invalid build number: {build_part} in {filename!r}"
+            )
+        build = cast("BuildTag", (int(build_match.group(1)), build_match.group(2)))
+    else:
+        build = ()
+    tag_str = parts[-1]
+    try:
+        tags = parse_tag(tag_str, validate_order=validate_order)
+    except UnsortedTagsError:
+        raise InvalidWheelFilename(
+            f"Invalid wheel filename (compressed tag set components must be in "
+            f"sorted order per PEP 425): {filename!r}"
+        ) from None
+    return (name, version, build, tags)
+
+
+def parse_sdist_filename(filename: str) -> tuple[NormalizedName, Version]:
+    """
+    This function takes the filename of a sdist file (as specified
+    in the `Source distribution format`_ documentation), and parses
+    it, returning a tuple of the normalized name and version as
+    represented by an instance of :class:`~packaging.version.Version`.
+
+    :param str filename: The name of the sdist file.
+    :raises InvalidSdistFilename: If the filename does not end
+        with an sdist extension (``.zip`` or ``.tar.gz``), or if it does not
+        contain a dash separating the name and the version of the distribution.
+
+    >>> from packaging.utils import parse_sdist_filename
+    >>> from packaging.version import Version
+    >>> name, ver = parse_sdist_filename("foo-1.0.tar.gz")
+    >>> name
+    'foo'
+    >>> ver == Version('1.0')
+    True
+
+    .. _Source distribution format: https://packaging.python.org/specifications/source-distribution-format/#source-distribution-file-name
+    """
+    if filename.endswith(".tar.gz"):
+        file_stem = filename[: -len(".tar.gz")]
+    elif filename.endswith(".zip"):
+        file_stem = filename[: -len(".zip")]
+    else:
+        raise InvalidSdistFilename(
+            f"Invalid sdist filename (extension must be '.tar.gz' or '.zip'):"
+            f" {filename!r}"
+        )
+
+    # We are requiring a PEP 440 version, which cannot contain dashes,
+    # so we split on the last dash.
+    name_part, sep, version_part = file_stem.rpartition("-")
+    if not sep:
+        raise InvalidSdistFilename(f"Invalid sdist filename: {filename!r}")
+
+    name = canonicalize_name(name_part)
+
+    try:
+        version = Version(version_part)
+    except InvalidVersion as e:
+        raise InvalidSdistFilename(
+            f"Invalid sdist filename (invalid version): {filename!r}"
+        ) from e
+
+    return (name, version)

hai-mcp-pr7/.venv/lib/python3.13/site-packages/packaging/version.py

@@ -0,0 +1,1231 @@
+# This file is dual licensed under the terms of the Apache License, Version
+# 2.0, and the BSD License. See the LICENSE file in the root of this repository
+# for complete details.
+"""
+.. testsetup::
+
+    from packaging.version import parse, normalize_pre, Version, _cmpkey
+"""
+
+from __future__ import annotations
+
+import re
+import sys
+import typing
+from typing import (
+    Any,
+    Callable,
+    Literal,
+    NamedTuple,
+    SupportsInt,
+    Tuple,
+    TypedDict,
+    Union,
+)
+
+if typing.TYPE_CHECKING:
+    from typing_extensions import Self, Unpack
+
+if sys.version_info >= (3, 13):  # pragma: no cover
+    from warnings import deprecated as _deprecated
+elif typing.TYPE_CHECKING:
+    from typing_extensions import deprecated as _deprecated
+else:  # pragma: no cover
+    import functools
+    import warnings
+
+    def _deprecated(message: str) -> object:
+        def decorator(func: Callable[[...], object]) -> object:
+            @functools.wraps(func)
+            def wrapper(*args: object, **kwargs: object) -> object:
+                warnings.warn(
+                    message,
+                    category=DeprecationWarning,
+                    stacklevel=2,
+                )
+                return func(*args, **kwargs)
+
+            return wrapper
+
+        return decorator
+
+
+_LETTER_NORMALIZATION = {
+    "alpha": "a",
+    "beta": "b",
+    "c": "rc",
+    "pre": "rc",
+    "preview": "rc",
+    "rev": "post",
+    "r": "post",
+}
+
+__all__ = ["VERSION_PATTERN", "InvalidVersion", "Version", "normalize_pre", "parse"]
+
+
+def __dir__() -> list[str]:
+    return __all__
+
+
+LocalType = Tuple[Union[int, str], ...]
+
+CmpLocalType = Tuple[Tuple[int, str], ...]
+CmpSuffix = Tuple[int, int, int, int, int, int]
+CmpKey = Union[
+    Tuple[int, Tuple[int, ...], CmpSuffix],
+    Tuple[int, Tuple[int, ...], CmpSuffix, CmpLocalType],
+]
+VersionComparisonMethod = Callable[[CmpKey, CmpKey], bool]
+
+
+class _VersionReplace(TypedDict, total=False):
+    epoch: int | None
+    release: tuple[int, ...] | None
+    pre: tuple[str, int] | None
+    post: int | None
+    dev: int | None
+    local: str | None
+
+
+def normalize_pre(letter: str, /) -> str:
+    """Normalize the pre-release segment of a version string.
+
+    Returns a lowercase version of the string if not a known pre-release
+    identifier.
+
+    >>> normalize_pre('alpha')
+    'a'
+    >>> normalize_pre('BETA')
+    'b'
+    >>> normalize_pre('rc')
+    'rc'
+
+    :param letter:
+
+    .. versionadded:: 26.1
+    """
+    letter = letter.lower()
+    return _LETTER_NORMALIZATION.get(letter, letter)
+
+
+def parse(version: str) -> Version:
+    """Parse the given version string.
+
+    This is identical to the :class:`Version` constructor.
+
+    >>> parse('1.0.dev1')
+    <Version('1.0.dev1')>
+
+    :param version: The version string to parse.
+    :raises InvalidVersion: When the version string is not a valid version.
+    """
+    return Version(version)
+
+
+class InvalidVersion(ValueError):
+    """Raised when a version string is not a valid version.
+
+    >>> Version("invalid")
+    Traceback (most recent call last):
+        ...
+    packaging.version.InvalidVersion: Invalid version: 'invalid'
+    """
+
+
+class _BaseVersion:
+    __slots__ = ()
+
+    # This can also be a normal member (see the packaging_legacy package);
+    # we are just requiring it to be readable. Actually defining a property
+    # has runtime effect on subclasses, so it's typing only.
+    if typing.TYPE_CHECKING:
+
+        @property
+        def _key(self) -> tuple[Any, ...]: ...
+
+    def __hash__(self) -> int:
+        return hash(self._key)
+
+    # Please keep the duplicated `isinstance` check
+    # in the six comparisons hereunder
+    # unless you find a way to avoid adding overhead function calls.
+    def __lt__(self, other: _BaseVersion) -> bool:
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return self._key < other._key
+
+    def __le__(self, other: _BaseVersion) -> bool:
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return self._key <= other._key
+
+    def __eq__(self, other: object) -> bool:
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return self._key == other._key
+
+    def __ge__(self, other: _BaseVersion) -> bool:
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return self._key >= other._key
+
+    def __gt__(self, other: _BaseVersion) -> bool:
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return self._key > other._key
+
+    def __ne__(self, other: object) -> bool:
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return self._key != other._key
+
+
+# Deliberately not anchored to the start and end of the string, to make it
+# easier for 3rd party code to reuse
+
+# Note that ++ doesn't behave identically on CPython and PyPy, so not using it here
+_VERSION_PATTERN = r"""
+    v?+                                                   # optional leading v
+    (?a:
+        (?:(?P<epoch>[0-9]+)!)?+                          # epoch
+        (?P<release>[0-9]+(?:\.[0-9]+)*+)                 # release segment
+        (?P<pre>                                          # pre-release
+            [._-]?+
+            (?P<pre_l>alpha|a|beta|b|preview|pre|c|rc)
+            [._-]?+
+            (?P<pre_n>[0-9]+)?
+        )?+
+        (?P<post>                                         # post release
+            (?:-(?P<post_n1>[0-9]+))
+            |
+            (?:
+                [._-]?
+                (?P<post_l>post|rev|r)
+                [._-]?
+                (?P<post_n2>[0-9]+)?
+            )
+        )?+
+        (?P<dev>                                          # dev release
+            [._-]?+
+            (?P<dev_l>dev)
+            [._-]?+
+            (?P<dev_n>[0-9]+)?
+        )?+
+    )
+    (?a:\+
+        (?P<local>                                        # local version
+            [a-z0-9]+
+            (?:[._-][a-z0-9]+)*+
+        )
+    )?+
+"""
+
+_VERSION_PATTERN_OLD = _VERSION_PATTERN.replace("*+", "*").replace("?+", "?")
+
+# Possessive qualifiers were added in Python 3.11.
+# CPython 3.11.0-3.11.4 had a bug: https://github.com/python/cpython/pull/107795
+# Older PyPy also had a bug.
+VERSION_PATTERN = (
+    _VERSION_PATTERN_OLD
+    if (sys.implementation.name == "cpython" and sys.version_info < (3, 11, 5))
+    or (sys.implementation.name == "pypy" and sys.version_info < (3, 11, 13))
+    or sys.version_info < (3, 11)
+    else _VERSION_PATTERN
+)
+"""
+A string containing the regular expression used to match a valid version.
+
+The pattern is not anchored at either end, and is intended for embedding in larger
+expressions (for example, matching a version number as part of a file name). The
+regular expression should be compiled with the ``re.VERBOSE`` and ``re.IGNORECASE``
+flags set.
+
+.. versionchanged:: 26.0
+
+   The regex now uses possessive qualifiers on Python 3.11 if they are
+   supported (CPython 3.11.5+, PyPy 3.11.13+).
+
+:meta hide-value:
+"""
+
+
+# Validation pattern for local version in replace()
+_LOCAL_PATTERN = re.compile(r"[a-z0-9]+(?:[._-][a-z0-9]+)*", re.IGNORECASE | re.ASCII)
+
+# Fast path: If a version has only digits and dots then we
+# can skip the regex and parse it as a release segment
+_SIMPLE_VERSION_INDICATORS = frozenset(".0123456789")
+
+
+def _validate_epoch(value: object, /) -> int:
+    epoch = value or 0
+    if isinstance(epoch, int) and epoch >= 0:
+        return epoch
+    msg = f"epoch must be non-negative integer, got {epoch}"
+    raise InvalidVersion(msg)
+
+
+def _validate_release(value: object, /) -> tuple[int, ...]:
+    release = (0,) if value is None else value
+    if (
+        isinstance(release, tuple)
+        and len(release) > 0
+        and all(isinstance(i, int) and i >= 0 for i in release)
+    ):
+        return release
+    msg = f"release must be a non-empty tuple of non-negative integers, got {release}"
+    raise InvalidVersion(msg)
+
+
+def _validate_pre(value: object, /) -> tuple[Literal["a", "b", "rc"], int] | None:
+    if value is None:
+        return value
+    if isinstance(value, tuple) and len(value) == 2:
+        letter, number = value
+        letter = normalize_pre(letter)
+        if letter in {"a", "b", "rc"} and isinstance(number, int) and number >= 0:
+            # type checkers can't infer the Literal type here on letter
+            return (letter, number)  # type: ignore[return-value]
+    msg = f"pre must be a tuple of ('a'|'b'|'rc', non-negative int), got {value}"
+    raise InvalidVersion(msg)
+
+
+def _validate_post(value: object, /) -> tuple[Literal["post"], int] | None:
+    if value is None:
+        return value
+    if isinstance(value, int) and value >= 0:
+        return ("post", value)
+    msg = f"post must be non-negative integer, got {value}"
+    raise InvalidVersion(msg)
+
+
+def _validate_dev(value: object, /) -> tuple[Literal["dev"], int] | None:
+    if value is None:
+        return value
+    if isinstance(value, int) and value >= 0:
+        return ("dev", value)
+    msg = f"dev must be non-negative integer, got {value}"
+    raise InvalidVersion(msg)
+
+
+def _validate_local(value: object, /) -> LocalType | None:
+    if value is None:
+        return value
+    if isinstance(value, str) and _LOCAL_PATTERN.fullmatch(value):
+        return _parse_local_version(value)
+    msg = f"local must be a valid version string, got {value!r}"
+    raise InvalidVersion(msg)
+
+
+# Backward compatibility for internals before 26.0. Do not use.
+class _Version(NamedTuple):
+    epoch: int
+    release: tuple[int, ...]
+    dev: tuple[Literal["dev"], int] | None
+    pre: tuple[Literal["a", "b", "rc"], int] | None
+    post: tuple[Literal["post"], int] | None
+    local: LocalType | None
+
+
+class Version(_BaseVersion):
+    """This class abstracts handling of a project's versions.
+
+    A :class:`Version` instance is comparison aware and can be compared and
+    sorted using the standard Python interfaces.
+
+    >>> v1 = Version("1.0a5")
+    >>> v2 = Version("1.0")
+    >>> v1
+    <Version('1.0a5')>
+    >>> v2
+    <Version('1.0')>
+    >>> v1 < v2
+    True
+    >>> v1 == v2
+    False
+    >>> v1 > v2
+    False
+    >>> v1 >= v2
+    False
+    >>> v1 <= v2
+    True
+
+    :class:`Version` is immutable; use :meth:`__replace__` to change
+    part of a version.
+
+    Instances are safe to serialize with :mod:`pickle`. They use a stable
+    format so the same pickle can be loaded in future packaging releases.
+
+    .. versionchanged:: 26.2
+
+        Added a stable pickle format. Pickles created with packaging 26.2+ can
+        be unpickled with future releases.  Backward compatibility with pickles
+        from packaging < 26.2 is supported but may be removed in a future
+        release.
+    """
+
+    __slots__ = (
+        "_dev",
+        "_epoch",
+        "_hash_cache",
+        "_key_cache",
+        "_local",
+        "_post",
+        "_pre",
+        "_release",
+    )
+    __match_args__ = ("_str",)
+    """
+    Pattern matching is supported on Python 3.10+.
+
+    .. versionadded:: 26.0
+
+    :meta hide-value:
+    """
+
+    _regex = re.compile(r"\s*" + VERSION_PATTERN + r"\s*", re.VERBOSE | re.IGNORECASE)
+
+    _epoch: int
+    _release: tuple[int, ...]
+    _dev: tuple[Literal["dev"], int] | None
+    _pre: tuple[Literal["a", "b", "rc"], int] | None
+    _post: tuple[Literal["post"], int] | None
+    _local: LocalType | None
+
+    _hash_cache: int | None
+    _key_cache: CmpKey | None
+
+    def __init__(self, version: str) -> None:
+        """Initialize a Version object.
+
+        :param version:
+            The string representation of a version which will be parsed and normalized
+            before use.
+        :raises InvalidVersion:
+            If the ``version`` does not conform to PEP 440 in any way then this
+            exception will be raised.
+        """
+        if _SIMPLE_VERSION_INDICATORS.issuperset(version):
+            try:
+                self._release = tuple(map(int, version.split(".")))
+            except ValueError:
+                # Empty parts (from "1..2", ".1", etc.) are invalid versions.
+                # Any other ValueError (e.g. int str-digits limit) should
+                # propagate to the caller.
+                if "" in version.split("."):
+                    raise InvalidVersion(f"Invalid version: {version!r}") from None
+                # TODO: remove "no cover" when Python 3.9 is dropped.
+                raise  # pragma: no cover
+
+            self._epoch = 0
+            self._pre = None
+            self._post = None
+            self._dev = None
+            self._local = None
+            self._key_cache = None
+            self._hash_cache = None
+            return
+
+        # Validate the version and parse it into pieces
+        match = self._regex.fullmatch(version)
+        if not match:
+            raise InvalidVersion(f"Invalid version: {version!r}")
+        self._epoch = int(match.group("epoch")) if match.group("epoch") else 0
+        self._release = tuple(map(int, match.group("release").split(".")))
+        # We can type ignore the assignments below because the regex guarantees
+        # the correct strings
+        self._pre = _parse_letter_version(match.group("pre_l"), match.group("pre_n"))  # type: ignore[assignment]
+        self._post = _parse_letter_version(  # type: ignore[assignment]
+            match.group("post_l"), match.group("post_n1") or match.group("post_n2")
+        )
+        self._dev = _parse_letter_version(match.group("dev_l"), match.group("dev_n"))  # type: ignore[assignment]
+        self._local = _parse_local_version(match.group("local"))
+
+        # Key which will be used for sorting
+        self._key_cache = None
+        self._hash_cache = None
+
+    @classmethod
+    def from_parts(
+        cls,
+        *,
+        epoch: int = 0,
+        release: tuple[int, ...],
+        pre: tuple[str, int] | None = None,
+        post: int | None = None,
+        dev: int | None = None,
+        local: str | None = None,
+    ) -> Self:
+        """
+        Return a new version composed of the various parts.
+
+        This allows you to build a version without going though a string and
+        running a regular expression. It normalizes pre-release strings. The
+        ``release=`` keyword argument is required.
+
+        >>> Version.from_parts(release=(1,2,3))
+        <Version('1.2.3')>
+        >>> Version.from_parts(release=(0,1,0), pre=("b", 1))
+        <Version('0.1.0b1')>
+
+        :param epoch:
+        :param release: This version tuple is required
+
+        .. versionadded:: 26.1
+        """
+        _epoch = _validate_epoch(epoch)
+        _release = _validate_release(release)
+        _pre = _validate_pre(pre) if pre is not None else None
+        _post = _validate_post(post) if post is not None else None
+        _dev = _validate_dev(dev) if dev is not None else None
+        _local = _validate_local(local) if local is not None else None
+
+        new_version = cls.__new__(cls)
+        new_version._key_cache = None
+        new_version._hash_cache = None
+        new_version._epoch = _epoch
+        new_version._release = _release
+        new_version._pre = _pre
+        new_version._post = _post
+        new_version._dev = _dev
+        new_version._local = _local
+
+        return new_version
+
+    def __replace__(self, **kwargs: Unpack[_VersionReplace]) -> Self:
+        """
+        __replace__(*, epoch=..., release=..., pre=..., post=..., dev=..., local=...)
+
+        Return a new version with parts replaced.
+
+        This returns a new version (unless no parts were changed). The
+        pre-release is normalized. Setting a value to ``None`` clears it.
+
+        >>> v = Version("1.2.3")
+        >>> v.__replace__(pre=("a", 1))
+        <Version('1.2.3a1')>
+
+        :param int | None epoch:
+        :param tuple[int, ...] | None release:
+        :param tuple[str, int] | None pre:
+        :param int | None post:
+        :param int | None dev:
+        :param str | None local:
+
+        .. versionadded:: 26.0
+        .. versionchanged:: 26.1
+
+           The pre-release portion is now normalized.
+        """
+        epoch = _validate_epoch(kwargs["epoch"]) if "epoch" in kwargs else self._epoch
+        release = (
+            _validate_release(kwargs["release"])
+            if "release" in kwargs
+            else self._release
+        )
+        pre = _validate_pre(kwargs["pre"]) if "pre" in kwargs else self._pre
+        post = _validate_post(kwargs["post"]) if "post" in kwargs else self._post
+        dev = _validate_dev(kwargs["dev"]) if "dev" in kwargs else self._dev
+        local = _validate_local(kwargs["local"]) if "local" in kwargs else self._local
+
+        if (
+            epoch == self._epoch
+            and release == self._release
+            and pre == self._pre
+            and post == self._post
+            and dev == self._dev
+            and local == self._local
+        ):
+            return self
+
+        new_version = self.__class__.__new__(self.__class__)
+        new_version._key_cache = None
+        new_version._hash_cache = None
+        new_version._epoch = epoch
+        new_version._release = release
+        new_version._pre = pre
+        new_version._post = post
+        new_version._dev = dev
+        new_version._local = local
+
+        return new_version
+
+    @property
+    def _key(self) -> CmpKey:
+        if self._key_cache is None:
+            self._key_cache = _cmpkey(
+                self._epoch,
+                self._release,
+                self._pre,
+                self._post,
+                self._dev,
+                self._local,
+            )
+        return self._key_cache
+
+    # __hash__ must be defined when __eq__ is overridden,
+    # otherwise Python sets __hash__ to None.
+    def __hash__(self) -> int:
+        if (cached_hash := self._hash_cache) is not None:
+            return cached_hash
+
+        if (key := self._key_cache) is None:
+            self._key_cache = key = _cmpkey(
+                self._epoch,
+                self._release,
+                self._pre,
+                self._post,
+                self._dev,
+                self._local,
+            )
+        self._hash_cache = cached_hash = hash(key)
+        return cached_hash
+
+    # Override comparison methods to use direct _key_cache access
+    # This is faster than property access, especially before Python 3.12
+    def __lt__(self, other: _BaseVersion) -> bool:
+        if isinstance(other, Version):
+            if self._key_cache is None:
+                self._key_cache = _cmpkey(
+                    self._epoch,
+                    self._release,
+                    self._pre,
+                    self._post,
+                    self._dev,
+                    self._local,
+                )
+            if other._key_cache is None:
+                other._key_cache = _cmpkey(
+                    other._epoch,
+                    other._release,
+                    other._pre,
+                    other._post,
+                    other._dev,
+                    other._local,
+                )
+            return self._key_cache < other._key_cache
+
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return super().__lt__(other)
+
+    def __le__(self, other: _BaseVersion) -> bool:
+        if isinstance(other, Version):
+            if self._key_cache is None:
+                self._key_cache = _cmpkey(
+                    self._epoch,
+                    self._release,
+                    self._pre,
+                    self._post,
+                    self._dev,
+                    self._local,
+                )
+            if other._key_cache is None:
+                other._key_cache = _cmpkey(
+                    other._epoch,
+                    other._release,
+                    other._pre,
+                    other._post,
+                    other._dev,
+                    other._local,
+                )
+            return self._key_cache <= other._key_cache
+
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return super().__le__(other)
+
+    def __eq__(self, other: object) -> bool:
+        if isinstance(other, Version):
+            if self._key_cache is None:
+                self._key_cache = _cmpkey(
+                    self._epoch,
+                    self._release,
+                    self._pre,
+                    self._post,
+                    self._dev,
+                    self._local,
+                )
+            if other._key_cache is None:
+                other._key_cache = _cmpkey(
+                    other._epoch,
+                    other._release,
+                    other._pre,
+                    other._post,
+                    other._dev,
+                    other._local,
+                )
+            return self._key_cache == other._key_cache
+
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return super().__eq__(other)
+
+    def __ge__(self, other: _BaseVersion) -> bool:
+        if isinstance(other, Version):
+            if self._key_cache is None:
+                self._key_cache = _cmpkey(
+                    self._epoch,
+                    self._release,
+                    self._pre,
+                    self._post,
+                    self._dev,
+                    self._local,
+                )
+            if other._key_cache is None:
+                other._key_cache = _cmpkey(
+                    other._epoch,
+                    other._release,
+                    other._pre,
+                    other._post,
+                    other._dev,
+                    other._local,
+                )
+            return self._key_cache >= other._key_cache
+
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return super().__ge__(other)
+
+    def __gt__(self, other: _BaseVersion) -> bool:
+        if isinstance(other, Version):
+            if self._key_cache is None:
+                self._key_cache = _cmpkey(
+                    self._epoch,
+                    self._release,
+                    self._pre,
+                    self._post,
+                    self._dev,
+                    self._local,
+                )
+            if other._key_cache is None:
+                other._key_cache = _cmpkey(
+                    other._epoch,
+                    other._release,
+                    other._pre,
+                    other._post,
+                    other._dev,
+                    other._local,
+                )
+            return self._key_cache > other._key_cache
+
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return super().__gt__(other)
+
+    def __ne__(self, other: object) -> bool:
+        if isinstance(other, Version):
+            if self._key_cache is None:
+                self._key_cache = _cmpkey(
+                    self._epoch,
+                    self._release,
+                    self._pre,
+                    self._post,
+                    self._dev,
+                    self._local,
+                )
+            if other._key_cache is None:
+                other._key_cache = _cmpkey(
+                    other._epoch,
+                    other._release,
+                    other._pre,
+                    other._post,
+                    other._dev,
+                    other._local,
+                )
+            return self._key_cache != other._key_cache
+
+        if not isinstance(other, _BaseVersion):
+            return NotImplemented
+
+        return super().__ne__(other)
+
+    def __getstate__(
+        self,
+    ) -> tuple[
+        int,
+        tuple[int, ...],
+        tuple[str, int] | None,
+        tuple[str, int] | None,
+        tuple[str, int] | None,
+        LocalType | None,
+    ]:
+        # Return state as a 6-item tuple for compactness:
+        #   (epoch, release, pre, post, dev, local)
+        # Cache members are excluded and will be recomputed on demand
+        return (
+            self._epoch,
+            self._release,
+            self._pre,
+            self._post,
+            self._dev,
+            self._local,
+        )
+
+    def __setstate__(self, state: object) -> None:
+        # Always discard cached values — they may contain stale references
+        # (e.g. packaging._structures.InfinityType from pre-26.1 pickles)
+        # and will be recomputed on demand from the core fields above.
+        self._key_cache = None
+        self._hash_cache = None
+
+        if isinstance(state, tuple):
+            if len(state) == 6:
+                # New format (26.2+): (epoch, release, pre, post, dev, local)
+                (
+                    self._epoch,
+                    self._release,
+                    self._pre,
+                    self._post,
+                    self._dev,
+                    self._local,
+                ) = state
+                return
+            if len(state) == 2:
+                # Format (packaging 26.0-26.1): (None, {slot: value}).
+                _, slot_dict = state
+                if isinstance(slot_dict, dict):
+                    self._epoch = slot_dict["_epoch"]
+                    self._release = slot_dict["_release"]
+                    self._pre = slot_dict.get("_pre")
+                    self._post = slot_dict.get("_post")
+                    self._dev = slot_dict.get("_dev")
+                    self._local = slot_dict.get("_local")
+                    return
+        if isinstance(state, dict):
+            # Old format (packaging <= 25.x, no __slots__): state is a plain
+            # dict with "_version" (_Version NamedTuple) and "_key" entries.
+            version_nt = state.get("_version")
+            if version_nt is not None:
+                self._epoch = version_nt.epoch
+                self._release = version_nt.release
+                self._pre = version_nt.pre
+                self._post = version_nt.post
+                self._dev = version_nt.dev
+                self._local = version_nt.local
+                return
+
+        raise TypeError(f"Cannot restore Version from {state!r}")
+
+    @property
+    @_deprecated("Version._version is private and will be removed soon")
+    def _version(self) -> _Version:
+        return _Version(
+            self._epoch, self._release, self._dev, self._pre, self._post, self._local
+        )
+
+    @_version.setter
+    @_deprecated("Version._version is private and will be removed soon")
+    def _version(self, value: _Version) -> None:
+        self._epoch = value.epoch
+        self._release = value.release
+        self._dev = value.dev
+        self._pre = value.pre
+        self._post = value.post
+        self._local = value.local
+        self._key_cache = None
+        self._hash_cache = None
+
+    def __repr__(self) -> str:
+        """A representation of the Version that shows all internal state.
+
+        >>> Version('1.0.0')
+        <Version('1.0.0')>
+        """
+        return f"<{self.__class__.__name__}({str(self)!r})>"
+
+    def __str__(self) -> str:
+        """A string representation of the version that can be round-tripped.
+
+        >>> str(Version("1.0a5"))
+        '1.0a5'
+        """
+        # This is a hot function, so not calling self.base_version
+        version = ".".join(map(str, self.release))
+
+        # Epoch
+        if self.epoch:
+            version = f"{self.epoch}!{version}"
+
+        # Pre-release
+        if self.pre is not None:
+            version += "".join(map(str, self.pre))
+
+        # Post-release
+        if self.post is not None:
+            version += f".post{self.post}"
+
+        # Development release
+        if self.dev is not None:
+            version += f".dev{self.dev}"
+
+        # Local version segment
+        if self.local is not None:
+            version += f"+{self.local}"
+
+        return version
+
+    @property
+    def _str(self) -> str:
+        """Internal property for match_args"""
+        return str(self)
+
+    @property
+    def epoch(self) -> int:
+        """The epoch of the version.
+
+        >>> Version("2.0.0").epoch
+        0
+        >>> Version("1!2.0.0").epoch
+        1
+        """
+        return self._epoch
+
+    @property
+    def release(self) -> tuple[int, ...]:
+        """The components of the "release" segment of the version.
+
+        >>> Version("1.2.3").release
+        (1, 2, 3)
+        >>> Version("2.0.0").release
+        (2, 0, 0)
+        >>> Version("1!2.0.0.post0").release
+        (2, 0, 0)
+
+        Includes trailing zeroes but not the epoch or any pre-release / development /
+        post-release suffixes.
+        """
+        return self._release
+
+    @property
+    def pre(self) -> tuple[Literal["a", "b", "rc"], int] | None:
+        """The pre-release segment of the version.
+
+        >>> print(Version("1.2.3").pre)
+        None
+        >>> Version("1.2.3a1").pre
+        ('a', 1)
+        >>> Version("1.2.3b1").pre
+        ('b', 1)
+        >>> Version("1.2.3rc1").pre
+        ('rc', 1)
+        """
+        return self._pre
+
+    @property
+    def post(self) -> int | None:
+        """The post-release number of the version.
+
+        >>> print(Version("1.2.3").post)
+        None
+        >>> Version("1.2.3.post1").post
+        1
+        """
+        return self._post[1] if self._post else None
+
+    @property
+    def dev(self) -> int | None:
+        """The development number of the version.
+
+        >>> print(Version("1.2.3").dev)
+        None
+        >>> Version("1.2.3.dev1").dev
+        1
+        """
+        return self._dev[1] if self._dev else None
+
+    @property
+    def local(self) -> str | None:
+        """The local version segment of the version.
+
+        >>> print(Version("1.2.3").local)
+        None
+        >>> Version("1.2.3+abc").local
+        'abc'
+        """
+        if self._local:
+            return ".".join(str(x) for x in self._local)
+        else:
+            return None
+
+    @property
+    def public(self) -> str:
+        """The public portion of the version.
+
+        This returns a string. If you want a :class:`Version` again and care
+        about performance, use ``v.__replace__(local=None)`` instead.
+
+        >>> Version("1.2.3").public
+        '1.2.3'
+        >>> Version("1.2.3+abc").public
+        '1.2.3'
+        >>> Version("1!1.2.3dev1+abc").public
+        '1!1.2.3.dev1'
+        """
+        return str(self).split("+", 1)[0]
+
+    @property
+    def base_version(self) -> str:
+        """The "base version" of the version.
+
+        This returns a string. If you want a :class:`Version` again and care
+        about performance, use
+        ``v.__replace__(pre=None, post=None, dev=None, local=None)`` instead.
+
+        >>> Version("1.2.3").base_version
+        '1.2.3'
+        >>> Version("1.2.3+abc").base_version
+        '1.2.3'
+        >>> Version("1!1.2.3dev1+abc").base_version
+        '1!1.2.3'
+
+        The "base version" is the public version of the project without any pre or post
+        release markers.
+        """
+        release_segment = ".".join(map(str, self.release))
+        return f"{self.epoch}!{release_segment}" if self.epoch else release_segment
+
+    @property
+    def is_prerelease(self) -> bool:
+        """Whether this version is a pre-release.
+
+        >>> Version("1.2.3").is_prerelease
+        False
+        >>> Version("1.2.3a1").is_prerelease
+        True
+        >>> Version("1.2.3b1").is_prerelease
+        True
+        >>> Version("1.2.3rc1").is_prerelease
+        True
+        >>> Version("1.2.3dev1").is_prerelease
+        True
+        """
+        return self.dev is not None or self.pre is not None
+
+    @property
+    def is_postrelease(self) -> bool:
+        """Whether this version is a post-release.
+
+        >>> Version("1.2.3").is_postrelease
+        False
+        >>> Version("1.2.3.post1").is_postrelease
+        True
+        """
+        return self.post is not None
+
+    @property
+    def is_devrelease(self) -> bool:
+        """Whether this version is a development release.
+
+        >>> Version("1.2.3").is_devrelease
+        False
+        >>> Version("1.2.3.dev1").is_devrelease
+        True
+        """
+        return self.dev is not None
+
+    @property
+    def major(self) -> int:
+        """The first item of :attr:`release` or ``0`` if unavailable.
+
+        >>> Version("1.2.3").major
+        1
+        """
+        return self.release[0] if len(self.release) >= 1 else 0
+
+    @property
+    def minor(self) -> int:
+        """The second item of :attr:`release` or ``0`` if unavailable.
+
+        >>> Version("1.2.3").minor
+        2
+        >>> Version("1").minor
+        0
+        """
+        return self.release[1] if len(self.release) >= 2 else 0
+
+    @property
+    def micro(self) -> int:
+        """The third item of :attr:`release` or ``0`` if unavailable.
+
+        >>> Version("1.2.3").micro
+        3
+        >>> Version("1").micro
+        0
+        """
+        return self.release[2] if len(self.release) >= 3 else 0
+
+
+class _TrimmedRelease(Version):
+    __slots__ = ()
+
+    def __init__(self, version: str | Version) -> None:
+        if isinstance(version, Version):
+            self._epoch = version._epoch
+            self._release = version._release
+            self._dev = version._dev
+            self._pre = version._pre
+            self._post = version._post
+            self._local = version._local
+            self._key_cache = version._key_cache
+            return
+        super().__init__(version)  # pragma: no cover
+
+    @property
+    def release(self) -> tuple[int, ...]:
+        """
+        Release segment without any trailing zeros.
+
+        >>> _TrimmedRelease('1.0.0').release
+        (1,)
+        >>> _TrimmedRelease('0.0').release
+        (0,)
+        """
+        # This leaves one 0.
+        rel = super().release
+        len_release = len(rel)
+        i = len_release
+        while i > 1 and rel[i - 1] == 0:
+            i -= 1
+        return rel if i == len_release else rel[:i]
+
+
+def _parse_letter_version(
+    letter: str | None, number: str | bytes | SupportsInt | None
+) -> tuple[str, int] | None:
+    if letter:
+        # We normalize any letters to their lower case form
+        letter = letter.lower()
+
+        # We consider some words to be alternate spellings of other words and
+        # in those cases we want to normalize the spellings to our preferred
+        # spelling.
+        letter = _LETTER_NORMALIZATION.get(letter, letter)
+
+        # We consider there to be an implicit 0 in a pre-release if there is
+        # not a numeral associated with it.
+        return letter, int(number or 0)
+
+    if number:
+        # We assume if we are given a number, but we are not given a letter
+        # then this is using the implicit post release syntax (e.g. 1.0-1)
+        return "post", int(number)
+
+    return None
+
+
+_local_version_separators = re.compile(r"[\._-]")
+
+
+def _parse_local_version(local: str | None) -> LocalType | None:
+    """
+    Takes a string like ``"abc.1.twelve"`` and turns it into
+    ``("abc", 1, "twelve")``.
+    """
+    if local is not None:
+        return tuple(
+            part.lower() if not part.isdigit() else int(part)
+            for part in _local_version_separators.split(local)
+        )
+    return None
+
+
+# Sort ranks for pre-release: dev-only < a < b < rc < stable (no pre-release).
+_PRE_RANK = {"a": 0, "b": 1, "rc": 2}
+_PRE_RANK_DEV_ONLY = -1  # sorts before a(0)
+_PRE_RANK_STABLE = 3  # sorts after rc(2)
+
+# In local version segments, strings sort before ints per PEP 440.
+_LOCAL_STR_RANK = -1  # sorts before all non-negative ints
+
+# Pre-computed suffix for stable releases (no pre, post, or dev segments).
+# See _cmpkey() for the suffix layout.
+_STABLE_SUFFIX = (_PRE_RANK_STABLE, 0, 0, 0, 1, 0)
+
+
+def _cmpkey(
+    epoch: int,
+    release: tuple[int, ...],
+    pre: tuple[str, int] | None,
+    post: tuple[str, int] | None,
+    dev: tuple[str, int] | None,
+    local: LocalType | None,
+) -> CmpKey:
+    """Build a comparison key for PEP 440 ordering.
+
+    Returns ``(epoch, release, suffix)`` or
+    ``(epoch, release, suffix, local)`` so that plain tuple
+    comparison gives the correct order.
+
+    Trailing zeros are stripped from the release so that ``1.0.0 == 1``.
+
+    The suffix is a flat 6-int tuple that encodes pre/post/dev:
+    ``(pre_rank, pre_n, post_rank, post_n, dev_rank, dev_n)``
+
+    pre_rank: dev-only=-1, a=0, b=1, rc=2, no-pre=3
+        Dev-only releases (no pre or post) get -1 so they sort before
+        any alpha/beta/rc.  Releases without a pre-release tag get 3
+        so they sort after rc.
+    post_rank: no-post=0, post=1
+        Releases without a post segment sort before those with one.
+    dev_rank: dev=0, no-dev=1
+        Releases without a dev segment sort after those with one.
+
+    Local segments use ``(n, "")`` for ints and ``(-1, s)`` for strings,
+    following PEP 440: strings sort before ints, strings compare
+    lexicographically, ints compare numerically, and shorter segments
+    sort before longer when prefixes match.  Versions without a local
+    segment sort before those with one (3-tuple < 4-tuple).
+
+    >>> _cmpkey(0, (1, 0, 0), None, None, None, None)
+    (0, (1,), (3, 0, 0, 0, 1, 0))
+    >>> _cmpkey(0, (1,), ("a", 1), None, None, None)
+    (0, (1,), (0, 1, 0, 0, 1, 0))
+    >>> _cmpkey(0, (1,), None, None, None, ("ubuntu", 1))
+    (0, (1,), (3, 0, 0, 0, 1, 0), ((-1, 'ubuntu'), (1, '')))
+    """
+    # Strip trailing zeros: 1.0.0 compares equal to 1.
+    len_release = len(release)
+    i = len_release
+    while i and release[i - 1] == 0:
+        i -= 1
+    trimmed = release if i == len_release else release[:i]
+
+    # Fast path: stable release with no local segment.
+    if pre is None and post is None and dev is None and local is None:
+        return epoch, trimmed, _STABLE_SUFFIX
+
+    if pre is None and post is None and dev is not None:
+        # dev-only (e.g. 1.0.dev1) sorts before all pre-releases.
+        pre_rank, pre_n = _PRE_RANK_DEV_ONLY, 0
+    elif pre is None:
+        pre_rank, pre_n = _PRE_RANK_STABLE, 0
+    else:
+        pre_rank, pre_n = _PRE_RANK[pre[0]], pre[1]
+
+    post_rank = 0 if post is None else 1
+    post_n = 0 if post is None else post[1]
+
+    dev_rank = 1 if dev is None else 0
+    dev_n = 0 if dev is None else dev[1]
+
+    suffix = (pre_rank, pre_n, post_rank, post_n, dev_rank, dev_n)
+
+    if local is None:
+        return epoch, trimmed, suffix
+
+    cmp_local: CmpLocalType = tuple(
+        (seg, "") if isinstance(seg, int) else (_LOCAL_STR_RANK, seg) for seg in local
+    )
+    return epoch, trimmed, suffix, cmp_local

hai-mcp-pr7/.venv/lib/python3.13/site-packages/pluggy-1.6.0.dist-info/INSTALLER

@@ -0,0 +1 @@
+uv

hai-mcp-pr7/.venv/lib/python3.13/site-packages/pluggy-1.6.0.dist-info/METADATA

@@ -0,0 +1,152 @@
+Metadata-Version: 2.4
+Name: pluggy
+Version: 1.6.0
+Summary: plugin and hook calling mechanisms for python
+Author-email: Holger Krekel <holger@merlinux.eu>
+License: MIT
+Classifier: Development Status :: 6 - Mature
+Classifier: Intended Audience :: Developers
+Classifier: License :: OSI Approved :: MIT License
+Classifier: Operating System :: POSIX
+Classifier: Operating System :: Microsoft :: Windows
+Classifier: Operating System :: MacOS :: MacOS X
+Classifier: Topic :: Software Development :: Testing
+Classifier: Topic :: Software Development :: Libraries
+Classifier: Topic :: Utilities
+Classifier: Programming Language :: Python :: Implementation :: CPython
+Classifier: Programming Language :: Python :: Implementation :: PyPy
+Classifier: Programming Language :: Python :: 3
+Classifier: Programming Language :: Python :: 3 :: Only
+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
+Requires-Python: >=3.9
+Description-Content-Type: text/x-rst
+License-File: LICENSE
+Provides-Extra: dev
+Requires-Dist: pre-commit; extra == "dev"
+Requires-Dist: tox; extra == "dev"
+Provides-Extra: testing
+Requires-Dist: pytest; extra == "testing"
+Requires-Dist: pytest-benchmark; extra == "testing"
+Requires-Dist: coverage; extra == "testing"
+Dynamic: license-file
+
+====================================================
+pluggy - A minimalist production ready plugin system
+====================================================
+
+|pypi| |conda-forge| |versions| |github-actions| |gitter| |black| |codecov|
+
+This is the core framework used by the `pytest`_, `tox`_, and `devpi`_ projects.
+
+Please `read the docs`_ to learn more!
+
+A definitive example
+====================
+.. code-block:: python
+
+    import pluggy
+
+    hookspec = pluggy.HookspecMarker("myproject")
+    hookimpl = pluggy.HookimplMarker("myproject")
+
+
+    class MySpec:
+        """A hook specification namespace."""
+
+        @hookspec
+        def myhook(self, arg1, arg2):
+            """My special little hook that you can customize."""
+
+
+    class Plugin_1:
+        """A hook implementation namespace."""
+
+        @hookimpl
+        def myhook(self, arg1, arg2):
+            print("inside Plugin_1.myhook()")
+            return arg1 + arg2
+
+
+    class Plugin_2:
+        """A 2nd hook implementation namespace."""
+
+        @hookimpl
+        def myhook(self, arg1, arg2):
+            print("inside Plugin_2.myhook()")
+            return arg1 - arg2
+
+
+    # create a manager and add the spec
+    pm = pluggy.PluginManager("myproject")
+    pm.add_hookspecs(MySpec)
+
+    # register plugins
+    pm.register(Plugin_1())
+    pm.register(Plugin_2())
+
+    # call our ``myhook`` hook
+    results = pm.hook.myhook(arg1=1, arg2=2)
+    print(results)
+
+
+Running this directly gets us::
+
+    $ python docs/examples/toy-example.py
+    inside Plugin_2.myhook()
+    inside Plugin_1.myhook()
+    [-1, 3]
+
+
+.. badges
+
+.. |pypi| image:: https://img.shields.io/pypi/v/pluggy.svg
+    :target: https://pypi.org/pypi/pluggy
+
+.. |versions| image:: https://img.shields.io/pypi/pyversions/pluggy.svg
+    :target: https://pypi.org/pypi/pluggy
+
+.. |github-actions| image:: https://github.com/pytest-dev/pluggy/workflows/main/badge.svg
+    :target: https://github.com/pytest-dev/pluggy/actions
+
+.. |conda-forge| image:: https://img.shields.io/conda/vn/conda-forge/pluggy.svg
+    :target: https://anaconda.org/conda-forge/pytest
+
+.. |gitter| image:: https://badges.gitter.im/pytest-dev/pluggy.svg
+    :alt: Join the chat at https://gitter.im/pytest-dev/pluggy
+    :target: https://gitter.im/pytest-dev/pluggy?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge
+
+.. |black| image:: https://img.shields.io/badge/code%20style-black-000000.svg
+    :target: https://github.com/ambv/black
+
+.. |codecov| image:: https://codecov.io/gh/pytest-dev/pluggy/branch/master/graph/badge.svg
+    :target: https://codecov.io/gh/pytest-dev/pluggy
+    :alt: Code coverage Status
+
+.. links
+.. _pytest:
+    http://pytest.org
+.. _tox:
+    https://tox.readthedocs.org
+.. _devpi:
+    http://doc.devpi.net
+.. _read the docs:
+   https://pluggy.readthedocs.io/en/latest/
+
+
+Support pluggy
+--------------
+
+`Open Collective`_ is an online funding platform for open and transparent communities.
+It provides tools to raise money and share your finances in full transparency.
+
+It is the platform of choice for individuals and companies that want to make one-time or
+monthly donations directly to the project.
+
+``pluggy`` is part of the ``pytest-dev`` project, see more details in the `pytest collective`_.
+
+.. _Open Collective: https://opencollective.com
+.. _pytest collective: https://opencollective.com/pytest

hai-mcp-pr7/.venv/lib/python3.13/site-packages/pluggy-1.6.0.dist-info/RECORD

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hai-mcp-pr7/.venv/lib/python3.13/site-packages/pluggy-1.6.0.dist-info/WHEEL

@@ -0,0 +1,5 @@
+Wheel-Version: 1.0
+Generator: setuptools (80.7.1)
+Root-Is-Purelib: true
+Tag: py3-none-any
+

hai-mcp-pr7/.venv/lib/python3.13/site-packages/pluggy-1.6.0.dist-info/licenses/LICENSE

@@ -0,0 +1,21 @@
+The MIT License (MIT)
+
+Copyright (c) 2015 holger krekel (rather uses bitbucket/hpk42)
+
+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.