From 0dd4b6f7576be3d3857fecefb298decdf0711ac7 Mon Sep 17 00:00:00 2001 From: AlexWaygood Date: Sat, 4 Mar 2023 13:14:11 +0000 Subject: [PATCH] Revert use of `ParamSpec` for `functools.wraps` --- mypy/typeshed/stdlib/functools.pyi | 40 +++++++++++------------------- 1 file changed, 14 insertions(+), 26 deletions(-) diff --git a/mypy/typeshed/stdlib/functools.pyi b/mypy/typeshed/stdlib/functools.pyi index 8c48e77c16cf..0f1666024f84 100644 --- a/mypy/typeshed/stdlib/functools.pyi +++ b/mypy/typeshed/stdlib/functools.pyi @@ -1,9 +1,9 @@ import sys import types -from _typeshed import SupportsAllComparisons, SupportsItems +from _typeshed import IdentityFunction, SupportsAllComparisons, SupportsItems from collections.abc import Callable, Hashable, Iterable, Sequence, Sized from typing import Any, Generic, Literal, NamedTuple, TypedDict, TypeVar, final, overload -from typing_extensions import ParamSpec, Self, TypeAlias +from typing_extensions import Self, TypeAlias if sys.version_info >= (3, 9): from types import GenericAlias @@ -27,12 +27,10 @@ __all__ = [ if sys.version_info >= (3, 9): __all__ += ["cache"] +_AnyCallable: TypeAlias = Callable[..., object] + _T = TypeVar("_T") _S = TypeVar("_S") -_PWrapped = ParamSpec("_PWrapped") -_RWrapped = TypeVar("_RWrapped") -_PWrapper = ParamSpec("_PWrapper") -_RWrapper = TypeVar("_RWrapper") @overload def reduce(__function: Callable[[_T, _S], _T], __sequence: Iterable[_S], __initial: _T) -> _T: ... @@ -82,41 +80,31 @@ else: ] WRAPPER_UPDATES: tuple[Literal["__dict__"]] -class _Wrapped(Generic[_PWrapped, _RWrapped, _PWrapper, _RWrapper]): - __wrapped__: Callable[_PWrapped, _RWrapped] - def __call__(self, *args: _PWrapper.args, **kwargs: _PWrapper.kwargs) -> _RWrapper: ... - # as with ``Callable``, we'll assume that these attributes exist - __name__: str - __qualname__: str - -class _Wrapper(Generic[_PWrapped, _RWrapped]): - def __call__(self, f: Callable[_PWrapper, _RWrapper]) -> _Wrapped[_PWrapped, _RWrapped, _PWrapper, _RWrapper]: ... - if sys.version_info >= (3, 12): def update_wrapper( - wrapper: Callable[_PWrapper, _RWrapper], - wrapped: Callable[_PWrapped, _RWrapped], + wrapper: _T, + wrapped: _AnyCallable, assigned: Sequence[str] = ("__module__", "__name__", "__qualname__", "__doc__", "__annotations__", "__type_params__"), updated: Sequence[str] = ("__dict__",), - ) -> _Wrapped[_PWrapped, _RWrapped, _PWrapper, _RWrapper]: ... + ) -> _T: ... def wraps( - wrapped: Callable[_PWrapped, _RWrapped], + wrapped: _AnyCallable, assigned: Sequence[str] = ("__module__", "__name__", "__qualname__", "__doc__", "__annotations__", "__type_params__"), updated: Sequence[str] = ("__dict__",), - ) -> _Wrapper[_PWrapped, _RWrapped]: ... + ) -> IdentityFunction: ... else: def update_wrapper( - wrapper: Callable[_PWrapper, _RWrapper], - wrapped: Callable[_PWrapped, _RWrapped], + wrapper: _T, + wrapped: _AnyCallable, assigned: Sequence[str] = ("__module__", "__name__", "__qualname__", "__doc__", "__annotations__"), updated: Sequence[str] = ("__dict__",), - ) -> _Wrapped[_PWrapped, _RWrapped, _PWrapper, _RWrapper]: ... + ) -> _T: ... def wraps( - wrapped: Callable[_PWrapped, _RWrapped], + wrapped: _AnyCallable, assigned: Sequence[str] = ("__module__", "__name__", "__qualname__", "__doc__", "__annotations__"), updated: Sequence[str] = ("__dict__",), - ) -> _Wrapper[_PWrapped, _RWrapped]: ... + ) -> IdentityFunction: ... def total_ordering(cls: type[_T]) -> type[_T]: ... def cmp_to_key(mycmp: Callable[[_T, _T], int]) -> Callable[[_T], SupportsAllComparisons]: ...