Error with methods defined as function references wrapped in staticmethod()

[jleclanche]

def foo(key: str) -> str:
	return key


class A:
	@staticmethod
	def foobar(key: str) -> str:
		return "hello world"


class B(A):
	foobar = staticmethod(foo)

This yields the following error on B.foobar:

error:Incompatible types in assignment (expression has type "staticmethod", base class "A" defined the type as "Callable[[str], str]")

[ilevkivskyi]

I am quite this was already reported, but can't find the issue. The point is that mypy checks superclass compatibility before descriptors are resolved. Btw stubs for staticmethod etc. are quite basic in typeshed (mostly because mypy treats them via some special-casing when they are used as decorators) ideally I would make them generic in the wrapped function so that __get__ can return the same callable, instead of just function.