Is there a way to check return type error incompatible with supertype? #81
Description
For such an example:
from abc import ABCMeta, abstractmethod
from typing import Callable, Type, TypeVar, Any
class A(metaclass=ABCMeta):
@abstractmethod
def foo(self, x: int) -> Any: pass
@abstractmethod
def bar(self) -> str: pass
class B(A):
def foo(self, x: int) -> None: ...
def bar(self) -> int:
return 1
#a = A() # Error: A is abstract
b = B() # OKMypy will complain the following error:
a.py:13: error: Return type of "bar" incompatible with supertype "A"
However pytype seems to ignore such an error.
Is there a way to check return type error incompatible with supertype? Thanks.