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Make return type of functools.cache_property covariant (#10053)

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Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com>
This commit is contained in:
Nikita Sobolev
2024-02-18 02:38:46 +03:00
committed by GitHub
parent 3fa6374c9a
commit 863d22a239
2 changed files with 25 additions and 5 deletions
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11
stdlib/functools.pyi
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@@ -28,6 +28,7 @@ if sys.version_info >= (3, 9):
__all__ += ["cache"]
_T = TypeVar("_T")
_T_co = TypeVar("_T_co", covariant=True)
_S = TypeVar("_S")
_PWrapped = ParamSpec("_PWrapped")
_RWrapped = TypeVar("_RWrapped")
@@ -183,17 +184,17 @@ class singledispatchmethod(Generic[_T]):
def register(self, cls: type[Any], method: Callable[..., _T]) -> Callable[..., _T]: ...
def __get__(self, obj: _S, cls: type[_S] | None = None) -> Callable[..., _T]: ...
class cached_property(Generic[_T]):
func: Callable[[Any], _T]
class cached_property(Generic[_T_co]):
func: Callable[[Any], _T_co]
attrname: str | None
def __init__(self, func: Callable[[Any], _T]) -> None: ...
def __init__(self, func: Callable[[Any], _T_co]) -> None: ...
@overload
def __get__(self, instance: None, owner: type[Any] | None = None) -> Self: ...
@overload
def __get__(self, instance: object, owner: type[Any] | None = None) -> _T: ...
def __get__(self, instance: object, owner: type[Any] | None = None) -> _T_co: ...
def __set_name__(self, owner: type[Any], name: str) -> None: ...
# __set__ is not defined at runtime, but @cached_property is designed to be settable
def __set__(self, instance: object, value: _T) -> None: ...
def __set__(self, instance: object, value: _T_co) -> None: ... # type: ignore[misc] # pyright: ignore[reportGeneralTypeIssues]
if sys.version_info >= (3, 9):
def __class_getitem__(cls, item: Any) -> GenericAlias: ...