diff --git a/stdlib/typing.pyi b/stdlib/typing.pyi index 4b80397bd..a25d1c3a1 100644 --- a/stdlib/typing.pyi +++ b/stdlib/typing.pyi @@ -8,7 +8,6 @@ import typing_extensions from _collections_abc import dict_items, dict_keys, dict_values from _typeshed import IdentityFunction, ReadableBuffer, SupportsKeysAndGetItem from abc import ABCMeta, abstractmethod -from contextlib import AbstractAsyncContextManager, AbstractContextManager from re import Match as Match, Pattern as Pattern from types import ( BuiltinFunctionType, @@ -24,10 +23,10 @@ from types import ( ) from typing_extensions import Never as _Never, ParamSpec as _ParamSpec -if sys.version_info >= (3, 10): - from types import UnionType if sys.version_info >= (3, 9): from types import GenericAlias +if sys.version_info >= (3, 10): + from types import UnionType __all__ = [ "AbstractSet", @@ -428,17 +427,17 @@ class Generator(Iterator[_YieldT_co], Generic[_YieldT_co, _SendT_contra, _Return @property def gi_yieldfrom(self) -> Generator[Any, Any, Any] | None: ... -# NOTE: Technically we would like this to be able to accept a second parameter as well, just -# like it's counterpart in contextlib, however `typing._SpecialGenericAlias` enforces the -# correct number of arguments at runtime, so we would be hiding runtime errors. -@runtime_checkable -class ContextManager(AbstractContextManager[_T_co, bool | None], Protocol[_T_co]): ... +# NOTE: Prior to Python 3.13 these aliases are lacking the second _ExitT_co parameter +if sys.version_info >= (3, 13): + from contextlib import AbstractAsyncContextManager as AsyncContextManager, AbstractContextManager as ContextManager +else: + from contextlib import AbstractAsyncContextManager, AbstractContextManager -# NOTE: Technically we would like this to be able to accept a second parameter as well, just -# like it's counterpart in contextlib, however `typing._SpecialGenericAlias` enforces the -# correct number of arguments at runtime, so we would be hiding runtime errors. -@runtime_checkable -class AsyncContextManager(AbstractAsyncContextManager[_T_co, bool | None], Protocol[_T_co]): ... + @runtime_checkable + class ContextManager(AbstractContextManager[_T_co, bool | None], Protocol[_T_co]): ... + + @runtime_checkable + class AsyncContextManager(AbstractAsyncContextManager[_T_co, bool | None], Protocol[_T_co]): ... @runtime_checkable class Awaitable(Protocol[_T_co]):