@contextmanager type hints don't pass through from decorated function

[CalebEverett]

Per this issue, it appears that the stub for contextmanager has not been updated for PEP612 so type hints aren't showing for the underlying function arguments.

[srittau]

PEP 612 is not supported yet in typeshed. See #4827.

[CalebEverett]

Is there anything I can do to help out?

[srittau]

It seems that mypy already has a PR (python/mypy#8645), maybe @hauntsaninja can give some insight here. google/pytype#786 makes it sound as if there could be a simple solution to at least partially support (or at least not block) PEP 612 in pytype. Maybe @rchen152 could give some pointers.

[rchen152]

Sorry for the slow response - somehow missed the notification for this comment. I'll try to add some minimal parse support for PEP 612 to pytype. (I'll probably just map everything to Any under the hood.)

[srittau]

I am going to close this for now, as is standard for issues labeled "inexpressible". We can revisit this when PEP 612 is implemented in supported type checkers.

[srittau]

PEP 612 is not mostly implemented, so this can be revisited. Reopening.

[JelleZijlstra]

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

This is fixed.