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Changed callable to return TypeIs[Callable] rather than TypeIs[Callable[..., object]] #16051

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Changed callable to return TypeIs[Callable] rather than TypeIs[Callable[..., object]] #16051

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39fe412
builtins.callable: use TypeIs[Callable[..., Any]] rather than TypeIs[…
randolf-scholz Jul 20, 2026
c93781b
clarified gradual guarantee in test
randolf-scholz Jul 20, 2026
e0d30f9
check_callable: add type ignore for no-any-return in callable check
randolf-scholz Jul 20, 2026
ac81749
check_callable: add unnecessary type ignore comment for pyright
randolf-scholz Jul 20, 2026
1f0b9bb
check_callable: disable no-any-return error code for mypy
randolf-scholz Jul 20, 2026
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10 changes: 10 additions & 0 deletions stdlib/@tests/test_cases/builtins/check_callable.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,10 @@
# mypy: disable-error-code="no-any-return"

from typing import Any


def check_gradual_guarantee(arg: Any) -> int:
# if Any materialized to `Callable[[], int] | None`, this function type checks
if callable(arg):
return arg()
return -1
2 changes: 1 addition & 1 deletion stdlib/builtins.pyi
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Original file line number Diff line number Diff line change
Expand Up @@ -1568,7 +1568,7 @@ else:
def bin(number: SupportsIndex, /) -> str: ...

def breakpoint(*args: Any, **kws: Any) -> None: ...
def callable(obj: object, /) -> TypeIs[Callable[..., object]]: ...
def callable(obj: object, /) -> TypeIs[Callable[..., Any]]: ...
def chr(i: SupportsIndex, /) -> str: ...
def aiter(async_iterable: SupportsAiter[_SupportsAnextT_co], /) -> _SupportsAnextT_co: ...

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