cut stringclasses 1
value | version stringclasses 10
values | idiom_id stringclasses 53
values | pep stringclasses 53
values | introduced_in stringclasses 11
values | form stringclasses 2
values | file stringclasses 887
values | code stringclasses 916
values | source stringclasses 1
value | origin stringlengths 15 17 | origin_revision stringclasses 10
values | license stringclasses 1
value |
|---|---|---|---|---|---|---|---|---|---|---|---|
train | 3.9 | dict-union | 584 | 3.9 | legacy | dict-union/legacy_21.py | globs = globs.copy()
if extraglobs is not None:
globs.update(extraglobs)
| pydocs | pep-0584.rst:977 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dict-union | 584 | 3.9 | modern | dict-union/modern_25.py | globs = globs | (extraglobs if extraglobs is not None else {})
| pydocs | pep-0584.rst:983 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | async-generators | 525 | 3.6 | legacy | async-generators/legacy_01.py | class Ticker:
"""Yield numbers from 0 to `to` every `delay` seconds."""
def __init__(self, delay, to):
self.delay = delay
self.i = 0
self.to = to
def __aiter__(self):
return self
async def __anext__(self):
i = self.i
if i >= self.to:
raise S... | pydocs | pep-0525.txt:46 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | async-generators | 525 | 3.6 | modern | async-generators/modern_01.py | async def ticker(delay, to):
"""Yield numbers from 0 to `to` every `delay` seconds."""
for i in range(to):
yield i
await asyncio.sleep(delay)
| pydocs | pep-0525.txt:69 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | async-generators | 525 | 3.6 | modern | async-generators/modern_02.py | async def coro(): # a coroutine function
await smth()
async def asyncgen(): # an asynchronous generator function
await smth()
yield 42
| pydocs | pep-0525.txt:101 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | async-generators | 525 | 3.6 | modern | async-generators/modern_03.py | async def genfunc():
yield 1
yield 2
gen = genfunc()
assert gen.__aiter__() is gen
assert await gen.__anext__() == 1
assert await gen.__anext__() == 2
await gen.__anext__() # This line will raise StopAsyncIteration.
| pydocs | pep-0525.txt:129 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | async-generators | 525 | 3.6 | modern | async-generators/modern_04.py | async def square_series(con, to):
async with con.transaction():
cursor = con.cursor(
'SELECT generate_series(0, $1) AS i', to)
async for row in cursor:
yield row['i'] ** 2
async for i in square_series(con, 1000):
if i == 100:
break
| pydocs | pep-0525.txt:155 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | async-generators | 525 | 3.6 | modern | async-generators/modern_05.py | async def gen():
try:
yield
finally:
await asyncio.sleep(1) # Can use 'await'.
yield # Cannot use 'yield',
# this line will trigger a
# RuntimeError.
| pydocs | pep-0525.txt:191 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | async-generators | 525 | 3.6 | modern | async-generators/modern_06.py | async def gen():
await asyncio.sleep(0.1)
v = yield 42
print(v)
await asyncio.sleep(0.2)
g = gen()
await g.asend(None) # Will return 42 after sleeping
# for 0.1 seconds.
await g.asend('hello') # Will print 'hello' and
# raise StopAsyncIteration... | pydocs | pep-0525.txt:307 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | async-generators | 525 | 3.6 | modern | async-generators/modern_07.py | N = 10 ** 7
async def agen():
for i in range(N):
yield i
class AIter:
def __init__(self):
self.i = 0
def __aiter__(self):
return self
async def __anext__(self):
i = self.i
if i >= N:
raise StopAsyncIteration
self.i += 1
return i
| pydocs | pep-0525.txt:492 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | async-generators | 525 | 3.6 | modern | async-generators/modern_08.py | async def g1():
yield 1
yield 2
async def g2():
async for v in g1():
yield v
| pydocs | pep-0525.txt:553 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | async-generators | 525 | 3.6 | modern | async-generators/modern_09.py | @async_context_manager
async def ctx():
await open()
try:
yield
finally:
await close()
async with ctx():
await ...
| pydocs | pep-0525.txt:570 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | async-generators | 525 | 3.6 | modern | async-generators/modern_10.py | async def ticker(delay, to):
for i in range(to):
yield i
await asyncio.sleep(delay)
async def run():
async for i in ticker(1, 10):
print(i)
import asyncio
loop = asyncio.get_event_loop()
try:
loop.run_until_complete(run())
finally:
loop.close()
| pydocs | pep-0525.txt:599 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | context-vars | 567 | 3.7 | modern | context-vars/modern_01.py | # Declare a context variable 'var' with the default value 42.
var = ContextVar('var', default=42)
| pydocs | pep-0567.rst:150 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | context-vars | 567 | 3.7 | modern | context-vars/modern_02.py | ctx = contextvars.copy_context()
| pydocs | pep-0567.rst:234 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | context-vars | 567 | 3.7 | modern | context-vars/modern_03.py | var = ContextVar('var')
var.set('spam')
def main():
# 'var' was set to 'spam' before
# calling 'copy_context()' and 'ctx.run(main)', so:
# var.get() == ctx[var] == 'spam'
var.set('ham')
# Now, after setting 'var' to 'ham':
# var.get() == ctx[var] == 'ham'
ctx = copy_context()
# Any changes ... | pydocs | pep-0567.rst:244 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | context-vars | 567 | 3.7 | modern | context-vars/modern_04.py | ctx = contextvars.copy_context()
# Print all context variables and their values in 'ctx':
print(ctx.items())
# Print the value of 'some_variable' in context 'ctx':
print(ctx[some_variable])
| pydocs | pep-0567.rst:279 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | context-vars | 567 | 3.7 | modern | context-vars/modern_05.py | def call_soon(self, callback, *args, context=None):
if context is None:
context = contextvars.copy_context()
# ... some time later
context.run(callback, *args)
| pydocs | pep-0567.rst:312 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | context-vars | 567 | 3.7 | modern | context-vars/modern_06.py | class Task:
def __init__(self, coro):
...
# Get the current context snapshot.
self._context = contextvars.copy_context()
self._loop.call_soon(self._step, context=self._context)
def _step(self, exc=None):
...
# Every advance of the wrapped coroutine is done in
... | pydocs | pep-0567.rst:323 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | context-vars | 567 | 3.7 | modern | context-vars/modern_07.py | var = ContextVar('var')
ctx = copy_context()
ctx[var] = 'value'
print(ctx[var]) # Prints 'value'
print(var.get()) # Raises a LookupError
| pydocs | pep-0567.rst:711 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | context-vars | 567 | 3.7 | modern | context-vars/modern_08.py | ctx = copy_context()
def func():
ctx[var] = 'value'
# Contrary to the previous example, this would work
# because 'func()' is running within 'ctx'.
print(ctx[var])
print(var.get())
ctx.run(func)
| pydocs | pep-0567.rst:721 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | context-vars | 567 | 3.7 | modern | context-vars/modern_09.py | # Framework:
current_request: ContextVar[Request] = \
ContextVar('current_request')
# Later, while handling an HTTP request:
request: Request = current_request.get()
# Work with the 'request' object:
return request.method
| pydocs | pep-0567.rst:755 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | context-vars | 567 | 3.7 | modern | context-vars/modern_10.py | # Framework:
current_request: ContextVar[Optional[Request]] = \
ContextVar('current_request', initial_value=None)
# Later, while handling an HTTP request:
request: Optional[Request] = current_request.get()
# Check if the current request object was set:
if request is None:
raise RuntimeError
# Work with the ... | pydocs | pep-0567.rst:774 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | context-vars | 567 | 3.7 | legacy | context-vars/legacy_01.py | class PrecisionStorage(threading.local):
# Subclass threading.local to specify a default value.
value = 0.0
precision = PrecisionStorage()
# To set a new precision:
precision.value = 0.5
# To read the current precision:
print(precision.value)
| pydocs | pep-0567.rst:816 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | context-vars | 567 | 3.7 | modern | context-vars/modern_11.py | precision = contextvars.ContextVar('precision', default=0.0)
# To set a new precision:
precision.set(0.5)
# To read the current precision:
print(precision.get())
| pydocs | pep-0567.rst:831 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | context-vars | 567 | 3.7 | modern | context-vars/modern_12.py | executor = ThreadPoolExecutor()
current_context = contextvars.copy_context()
executor.submit(current_context.run, some_function)
| pydocs | pep-0567.rst:846 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | breakpoint | 553 | 3.7 | legacy | breakpoint/legacy_01.py | foo()
import pdb; pdb.set_trace()
bar()
| pydocs | pep-0553.rst:28 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | breakpoint | 553 | 3.7 | modern | breakpoint/modern_01.py | foo()
breakpoint()
bar()
| pydocs | pep-0553.rst:71 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | breakpoint | 553 | 3.7 | modern | breakpoint/modern_02.py | os.environ['PYTHONBREAKPOINT'] = 'foo.bar.baz'
breakpoint() # Imports foo.bar and calls foo.bar.baz()
| pydocs | pep-0553.rst:142 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | str-affix-removal | 616 | 3.9 | legacy | str-affix-removal/legacy_01.py | if test_func_name.startswith("test_"):
print(test_func_name[5:])
else:
print(test_func_name)
| pydocs | pep-0616.rst:105 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | str-affix-removal | 616 | 3.9 | modern | str-affix-removal/modern_01.py | print(test_func_name.removeprefix("test_"))
| pydocs | pep-0616.rst:112 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | str-affix-removal | 616 | 3.9 | legacy | str-affix-removal/legacy_02.py | if funcname.startswith("context."):
self.funcname = funcname.replace("context.", "")
self.contextfunc = True
else:
self.funcname = funcname
self.contextfunc = False
| pydocs | pep-0616.rst:124 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | str-affix-removal | 616 | 3.9 | modern | str-affix-removal/modern_02.py | if funcname.startswith("context."):
self.funcname = funcname.removeprefix("context.")
self.contextfunc = True
else:
self.funcname = funcname
self.contextfunc = False
| pydocs | pep-0616.rst:133 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | str-affix-removal | 616 | 3.9 | modern | str-affix-removal/modern_03.py | self.contextfunc = funcname.startswith("context.")
self.funcname = funcname.removeprefix("context.")
| pydocs | pep-0616.rst:142 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | str-affix-removal | 616 | 3.9 | legacy | str-affix-removal/legacy_03.py | def strip_quotes(text):
if text.startswith('"'):
text = text[1:]
if text.endswith('"'):
text = text[:-1]
return text
| pydocs | pep-0616.rst:151 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | str-affix-removal | 616 | 3.9 | modern | str-affix-removal/modern_04.py | def strip_quotes(text):
return text.removeprefix('"').removesuffix('"')
| pydocs | pep-0616.rst:160 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | str-affix-removal | 616 | 3.9 | legacy | str-affix-removal/legacy_04.py | if name.endswith(('Mixin', 'Tests')):
return name[:-5]
elif name.endswith('Test'):
return name[:-4]
else:
return name
| pydocs | pep-0616.rst:172 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | str-affix-removal | 616 | 3.9 | modern | str-affix-removal/modern_05.py | return (name.removesuffix('Mixin')
.removesuffix('Tests')
.removesuffix('Test'))
| pydocs | pep-0616.rst:181 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | str-affix-removal | 616 | 3.9 | modern | str-affix-removal/modern_06.py | s = 'Foo' * 100 + 'Bar'
prefix = 'Foo'
while s.startswith(prefix): s = s.removeprefix(prefix)
s
| pydocs | pep-0616.rst:212 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | class-creation-hooks | 487 | 3.6 | modern | class-creation-hooks/modern_01.py | class QuestBase:
# this is implicitly a @classmethod (see below for motivation)
def __init_subclass__(cls, swallow, **kwargs):
cls.swallow = swallow
super().__init_subclass__(**kwargs)
class Quest(QuestBase, swallow="african"):
pass
Quest.swallow
| pydocs | pep-0487.txt:69 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | class-creation-hooks | 487 | 3.6 | modern | class-creation-hooks/modern_02.py | import weakref
class WeakAttribute:
def __get__(self, instance, owner):
return instance.__dict__[self.name]()
def __set__(self, instance, value):
instance.__dict__[self.name] = weakref.ref(value)
# this is the new initializer:
def __set_name__(self, owner, name):
self.name = n... | pydocs | pep-0487.txt:110 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | class-creation-hooks | 487 | 3.6 | modern | class-creation-hooks/modern_03.py | class PluginBase:
subclasses = []
def __init_subclass__(cls, **kwargs):
super().__init_subclass__(**kwargs)
cls.subclasses.append(cls)
| pydocs | pep-0487.txt:197 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | class-creation-hooks | 487 | 3.6 | modern | class-creation-hooks/modern_04.py | class Trait:
def __init__(self, minimum, maximum):
self.minimum = minimum
self.maximum = maximum
def __get__(self, instance, owner):
return instance.__dict__[self.key]
def __set__(self, instance, value):
if self.minimum < value < self.maximum:
instance.__dict__[... | pydocs | pep-0487.txt:216 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_01.py | @dataclass
class InventoryItem:
'''Class for keeping track of an item in inventory.'''
name: str
unit_price: float
quantity_on_hand: int = 0
def total_cost(self) -> float:
return self.unit_price * self.quantity_on_hand
| pydocs | pep-0557.rst:43 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | legacy | dataclasses/legacy_01.py | def __init__(self, name: str, unit_price: float, quantity_on_hand: int = 0) -> None:
self.name = name
self.unit_price = unit_price
self.quantity_on_hand = quantity_on_hand
def __repr__(self):
return f'InventoryItem(name={self.name!r}, unit_price={self.unit_price!r}, quantity_on_hand={self.quantity_on_ha... | pydocs | pep-0557.rst:56 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_02.py | @dataclass
class C:
...
@dataclass()
class C:
...
@dataclass(init=True, repr=True, eq=True, order=False, unsafe_hash=False, frozen=False)
class C:
...
| pydocs | pep-0557.rst:179 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_03.py | @dataclass
class C:
a: int # 'a' has no default value
b: int = 0 # assign a default value for 'b'
| pydocs | pep-0557.rst:268 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_04.py | @dataclass
class C:
x: int
y: int = field(repr=False)
z: int = field(repr=False, default=10)
t: int = 20
| pydocs | pep-0557.rst:345 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_05.py | @dataclass
class C:
a: float
b: float
c: float = field(init=False)
def __post_init__(self):
self.c = self.a + self.b
| pydocs | pep-0557.rst:386 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_06.py | @dataclass
class C:
i: int
j: int = None
database: InitVar[DatabaseType] = None
def __post_init__(self, database):
if self.j is None and database is not None:
self.j = database.lookup('j')
c = C(10, database=my_database)
| pydocs | pep-0557.rst:426 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_07.py | @dataclass
class Base:
x: Any = 15.0
y: int = 0
@dataclass
class C(Base):
z: int = 10
x: int = 15
| pydocs | pep-0557.rst:467 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_08.py | @dataclass
class D:
x: List = []
def add(self, element):
self.x += element
| pydocs | pep-0557.rst:522 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_09.py | @dataclass
class D:
x: list = field(default_factory=list)
assert D().x is not D().x
| pydocs | pep-0557.rst:553 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_10.py | @dataclass
class Point:
x: int
y: int
@dataclass
class C:
l: List[Point]
p = Point(10, 20)
assert asdict(p) == {'x': 10, 'y': 20}
c = C([Point(0, 0), Point(10, 4)])
assert asdict(c) == {'l': [{'x': 0, 'y': 0}, {'x': 10, 'y': 4}]}
| pydocs | pep-0557.rst:574 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_11.py | C = make_dataclass('C',
[('x', int),
'y',
('z', int, field(default=5))],
namespace={'add_one': lambda self: self.x + 1})
| pydocs | pep-0557.rst:616 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_12.py | @dataclass
class C:
x: int
y: 'typing.Any'
z: int = 5
def add_one(self):
return self.x + 1
| pydocs | pep-0557.rst:624 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | legacy | dataclasses/legacy_02.py | Time = namedtuple('Time', ['hour', 'minute'])
def get_time():
return Time(12, 0)
| pydocs | pep-0557.rst:715 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_13.py | @dataclass
class C:
x: int
@classmethod
def from_file(cls, filename):
with open(filename) as fl:
file_value = int(fl.read())
return C(file_value)
c = C.from_file('file.txt')
| pydocs | pep-0557.rst:767 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_14.py | @dataclass
class Square:
length: float
area: float = field(init=False, default=0.0)
def __post_init__(self):
self.area = self.length * self.length
s1 = Square(1.0)
s2 = replace(s1, length=2.0)
| pydocs | pep-0557.rst:836 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_15.py | @dataclass(init=False)
class ArgHolder:
args: List[Any]
kwargs: Mapping[Any, Any]
def __init__(self, *args, **kwargs):
self.args = args
self.kwargs = kwargs
a = ArgHolder(1, 2, three=3)
| pydocs | pep-0557.rst:872 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | legacy | dataclasses/legacy_03.py | class Application:
def __init__(self, name, requirements, constraints=None, path='', executable_links=None, executables_dir=()):
self.name = name
self.requirements = requirements
self.constraints = {} if constraints is None else constraints
self.path = path
self.executable_li... | pydocs | pep-0557.rst:888 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | dataclasses | 557 | 3.7 | modern | dataclasses/modern_16.py | @dataclass
class Application:
name: str
requirements: List[Requirement]
constraints: Dict[str, str] = field(default_factory=dict)
path: str = ''
executable_links: List[str] = field(default_factory=list)
executable_dir: Tuple[str] = ()
additional_items: List[str] = field(init=False, default_f... | pydocs | pep-0557.rst:903 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | zoneinfo | 615 | 3.9 | modern | zoneinfo/modern_01.py | a = ZoneInfo(key)
b = ZoneInfo(key)
assert a is b
| pydocs | pep-0615.rst:110 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | zoneinfo | 615 | 3.9 | modern | zoneinfo/modern_02.py | a = ZoneInfo.no_cache(key)
b = ZoneInfo(key)
a is not b
| pydocs | pep-0615.rst:154 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | zoneinfo | 615 | 3.9 | modern | zoneinfo/modern_03.py | NYC0 = ZoneInfo("America/New_York")
NYC0 is ZoneInfo("America/New_York")
ZoneInfo.clear_cache()
NYC1 = ZoneInfo("America/New_York")
NYC0 is NYC1
NYC1 is ZoneInfo("America/New_York")
| pydocs | pep-0615.rst:221 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | zoneinfo | 615 | 3.9 | modern | zoneinfo/modern_04.py | NYC0 = ZoneInfo("America/New_York")
LA0 = ZoneInfo("America/Los_Angeles")
ZoneInfo.clear_cache(only_keys=["America/New_York"])
NYC1 = ZoneInfo("America/New_York")
LA0 = ZoneInfo("America/Los_Angeles")
NYC0 is NYC1
LA0 is LA1
| pydocs | pep-0615.rst:236 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | zoneinfo | 615 | 3.9 | modern | zoneinfo/modern_05.py | zone = ZoneInfo("Pacific/Kwajalein")
str(zone)
dt = datetime(2020, 4, 1, 3, 15, tzinfo=zone)
f"{dt.isoformat()} [{dt.tzinfo}]"
| pydocs | pep-0615.rst:267 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | zoneinfo | 615 | 3.9 | modern | zoneinfo/modern_06.py | zone = ZoneInfo.from_file(f)
str(zone)
| pydocs | pep-0615.rst:279 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | zoneinfo | 615 | 3.9 | modern | zoneinfo/modern_07.py | a = ZoneInfo("Europe/Berlin")
b = pickle.loads(europe_berlin_pkl)
a is b
| pydocs | pep-0615.rst:314 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | zoneinfo | 615 | 3.9 | modern | zoneinfo/modern_08.py | a = ZoneInfo("Europe/Berlin")
b = pickle.loads(europe_berlin_pkl_nc)
a is b
| pydocs | pep-0615.rst:328 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.9 | zoneinfo | 615 | 3.9 | modern | zoneinfo/modern_09.py | reset_tzpath(to=["/my/custom/tzdb"])
a = ZoneInfo("My/Custom/Zone")
reset_tzpath()
b = ZoneInfo("My/Custom/Zone")
del a
del b
c = ZoneInfo("My/Custom/Zone")
| pydocs | pep-0615.rst:534 | a95341328c8ee8d84692e5dad85bef668d86c9d5 | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_01.py | def greeting(name: str) -> str:
return 'Hello ' + name
| pydocs | pep-0484.txt:37 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_02.py | Url = str
def retry(url: Url, retry_count: int) -> None: ...
| pydocs | pep-0484.txt:203 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_03.py | from typing import TypeVar, Iterable, Tuple
T = TypeVar('T', int, float, complex)
Vector = Iterable[Tuple[T, T]]
def inproduct(v: Vector[T]) -> T:
return sum(x*y for x, y in v)
def dilate(v: Vector[T], scale: T) -> Vector[T]:
return ((x * scale, y * scale) for x, y in v)
vec = [] # type: Vector[float]
| pydocs | pep-0484.txt:215 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_04.py | from typing import TypeVar, Iterable, Tuple
T = TypeVar('T', int, float, complex)
def inproduct(v: Iterable[Tuple[T, T]]) -> T:
return sum(x*y for x, y in v)
def dilate(v: Iterable[Tuple[T, T]], scale: T) -> Iterable[Tuple[T, T]]:
return ((x * scale, y * scale) for x, y in v)
vec = [] # type: Iterable[Tuple[... | pydocs | pep-0484.txt:229 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_05.py | from typing import Callable
def feeder(get_next_item: Callable[[], str]) -> None:
...
# Body
def async_query(on_success: Callable[[int], None],
on_error: Callable[[int, Exception], None]) -> None:
...
# Body
| pydocs | pep-0484.txt:247 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_06.py | def partial(func: Callable[..., str], *args) -> Callable[..., str]:
...
# Body
| pydocs | pep-0484.txt:260 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_07.py | from typing import Mapping, Set
def notify_by_email(employees: Set[Employee], overrides: Mapping[str, str]) -> None: ...
| pydocs | pep-0484.txt:287 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_08.py | from typing import Sequence, TypeVar
T = TypeVar('T') # Declare type variable
def first(l: Sequence[T]) -> T: # Generic function
return l[0]
| pydocs | pep-0484.txt:294 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_09.py | from typing import TypeVar, Text
AnyStr = TypeVar('AnyStr', Text, bytes)
def concat(x: AnyStr, y: AnyStr) -> AnyStr:
return x + y
| pydocs | pep-0484.txt:315 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_10.py | def count_truthy(elements: List[Any]) -> int:
return sum(1 for elem in elements if elem)
| pydocs | pep-0484.txt:344 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_11.py | from typing import TypeVar, Generic
from logging import Logger
T = TypeVar('T')
class LoggedVar(Generic[T]):
def __init__(self, value: T, name: str, logger: Logger) -> None:
self.name = name
self.logger = logger
self.value = value
def set(self, new: T) -> None:
self.log('Set '... | pydocs | pep-0484.txt:357 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_12.py | from typing import Iterable
def zero_all_vars(vars: Iterable[LoggedVar[int]]) -> None:
for var in vars:
var.set(0)
| pydocs | pep-0484.txt:386 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_13.py | from typing import TypeVar, Generic
T = TypeVar('T')
def fun_1(x: T) -> T: ... # T here
def fun_2(x: T) -> T: ... # and here could be different
fun_1(1) # This is OK, T is inferred to be int
fun_2('a') # This is also OK, now T is str
| pydocs | pep-0484.txt:469 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_14.py | from typing import TypeVar, Generic
T = TypeVar('T')
class MyClass(Generic[T]):
def meth_1(self, x: T) -> T: ... # T here
def meth_2(self, x: T) -> T: ... # and here are always the same
a = MyClass() # type: MyClass[int]
a.meth_1(1) # OK
a.meth_2('a') # This is an error!
| pydocs | pep-0484.txt:483 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_15.py | T = TypeVar('T')
S = TypeVar('S')
class Foo(Generic[T]):
def method(self, x: T, y: S) -> S:
...
x = Foo() # type: Foo[int]
y = x.method(0, "abc") # inferred type of y is str
| pydocs | pep-0484.txt:499 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_16.py | T = TypeVar('T')
S = TypeVar('S')
def a_fun(x: T) -> None:
# this is OK
y = [] # type: List[T]
# but below is an error!
y = [] # type: List[S]
class Bar(Generic[T]):
# this is also an error
an_attr = [] # type: List[S]
def do_something(x: S) -> S: # this is OK though
...
| pydocs | pep-0484.txt:511 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_17.py | from typing import List
def a_fun(x: T) -> None:
# This is OK
a_list = [] # type: List[T]
...
# This is however illegal
class MyGeneric(Generic[T]):
...
| pydocs | pep-0484.txt:530 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_18.py | from typing import TypeVar, Generic
T = TypeVar('T')
class Node(Generic[T]):
x = None # type: T # Instance attribute (see below)
def __init__(self, label: T = None) -> None:
...
x = Node('') # Inferred type is Node[str]
y = Node(0) # Inferred type is Node[int]
z = Node() # Inferred type is Nod... | pydocs | pep-0484.txt:581 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | legacy | type-hints/legacy_01.py | # (continued from previous example)
a = Node() # type: Node[int]
b = Node() # type: Node[str]
| pydocs | pep-0484.txt:598 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | legacy | type-hints/legacy_02.py | data = collections.defaultdict() # type: DefaultDict[int, bytes]
| pydocs | pep-0484.txt:643 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_19.py | from typing import Dict, List, Optional
class Node:
...
class SymbolTable(Dict[str, List[Node]]):
def push(self, name: str, node: Node) -> None:
self.setdefault(name, []).append(node)
def pop(self, name: str) -> Node:
return self[name].pop()
def lookup(self, name: str) -> Optional[No... | pydocs | pep-0484.txt:662 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_20.py | from typing import TypeVar, Sized
ST = TypeVar('ST', bound=Sized)
def longer(x: ST, y: ST) -> ST:
if len(x) > len(y):
return x
else:
return y
longer([1], [1, 2]) # ok, return type List[int]
longer({1}, {1, 2}) # ok, return type Set[int]
longer([1], {1, 2}) # ok, return type Collection[int]... | pydocs | pep-0484.txt:727 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_21.py | from typing import TypeVar, Generic, Iterable, Iterator
T_co = TypeVar('T_co', covariant=True)
class ImmutableList(Generic[T_co]):
def __init__(self, items: Iterable[T_co]) -> None: ...
def __iter__(self) -> Iterator[T_co]: ...
...
class Employee: ...
class Manager(Employee): ...
def dump_employees(emp... | pydocs | pep-0484.txt:785 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_22.py | from typing import TypeVar
class Employee: ...
class Manager(Employee): ...
E = TypeVar('E', bound=Employee)
def dump_employee(e: E) -> None: ...
dump_employee(Manager()) # OK
| pydocs | pep-0484.txt:820 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_23.py | B_co = TypeVar('B_co', covariant=True)
def bad_func(x: B_co) -> B_co: # Flagged as error by a type checker
...
| pydocs | pep-0484.txt:834 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_24.py | class Tree:
def __init__(self, left: Tree, right: Tree):
self.left = left
self.right = right
| pydocs | pep-0484.txt:872 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_25.py | class Tree:
def __init__(self, left: 'Tree', right: 'Tree'):
self.left = left
self.right = right
| pydocs | pep-0484.txt:879 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_26.py | class Tree:
...
def leaves(self) -> List['Tree']:
...
| pydocs | pep-0484.txt:898 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
train | 3.10 | type-hints | 484 | 3.5 | modern | type-hints/modern_27.py | # File models/a.py
from models.b import B
class A(Model):
def foo(self, b: B): ...
# File models/b.py
from models.a import A
class B(Model):
def bar(self, a: A): ...
# File main.py
from models.a import A
from models.b import B
| pydocs | pep-0484.txt:909 | 2c89d6ac2ccea9d8691f1b75d95c2d7294cc32ca | CC0-1.0 |
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