8000 use ParamSpec for @contextmanager by JelleZijlstra · Pull Request #5476 · python/typeshed · GitHub
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use ParamSpec for @contextmanager #5476

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Merged
merged 3 commits into from
Jun 14, 2021
Merged

use ParamSpec for @contextmanager #5476

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e942284
use ParamSpec for @contextmanager
JelleZijlstra May 16, 2021
baf3167
Update contextlib.pyi
JelleZijlstra Jun 14, 2021
d347f2d
remove :
JelleZijlstra Jun 14, 2021
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use ParamSpec for @contextmanager
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@JelleZijlstra
JelleZijlstra committed May 16, 2021
commit e942284c34938af87cb23e6051f218e458268af7
7 changes: 4 additions & 3 deletions stdlib/contextlib.pyi
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Expand Up @@ -13,7 +13,7 @@ from typing import (
TypeVar,
overload,
)
from typing_extensions import Protocol
from typing_extensions import ParamSpec, Protocol

AbstractContextManager = ContextManager
if sys.version_info >= (3, 7):
Expand All @@ -23,17 +23,18 @@ _T = TypeVar("_T")
_T_co = TypeVar("_T_co", covariant=True)
_T_io = TypeVar("_T_io", bound=Optional[IO[str]])
_F = TypeVar("_F", bound=Callable[..., Any])
_P = ParamSpec("_P")

_ExitFunc = Callable[[Optional[Type[BaseException]], Optional[BaseException], Optional[TracebackType]], bool]
_CM_EF = TypeVar("_CM_EF", ContextManager[Any], _ExitFunc)

class _GeneratorContextManager(ContextManager[_T_co]):
def __call__(self, func: _F) -> _F: ...

def contextmanager(func: Callable[..., Iterator[_T]]) -> Callable[..., _GeneratorContextManager[_T]]: ...
def contextmanager(func: Callable[_P, Iterator[_T]]) -> Callable[_P, _GeneratorContextManager[_T]]: ...

if sys.version_info >= (3, 7):
def asynccontextmanager(func: Callable[..., AsyncIterator[_T]]) -> Callable[..., AsyncContextManager[_T]]: ...
def asynccontextmanager(func: Callable[_P, AsyncIterator[_T]]) -> Callable[_P, AsyncContextManager[_T]]: ...

class _SupportsClose(Protocol):
def close(self) -> None: ...
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