module and types.ModuleType aren't compatible

[JelleZijlstra]

$ cat module.py 
from types import ModuleType
import os

def takes_module(mod: ModuleType) -> None:
    pass
takes_module(os)
$ python3.6 -m mypy module.py 
module.py:6: error: Argument 1 to "takes_module" has incompatible type "module"; expected "ModuleType"

mypy may need to learn that types.ModuleType is the same as module. This came up in #2910.

[ilevkivskyi]

I think it might be a duplicate of #1498

[JukkaL]

Yes, this is a duplicate.