Feature or enhancement

functools.cmp_to_key() returns a custom callable.inspect.signature()returns generic<Signature (*args, **kwargs)> raises a TypeError for the C implementation. The following PR makes it returning the same signature (<Signature (obj)>) for both Python and C implementations (currently it is returned for the Python implementation).

This issue is similar to#118285.

Linked PRs

• gh-118402: Fix inspect.signature() for functools.cmp_to_key() result #118427