Python 3.5 Typing ABCMeta does not define '__getitem__'

问题:

I am trying out Python 3.5's typing module by marking up a few of my functions.

I have a function that returns a list though I am getting a warning in PyCharm.

The warning reads:

Class 'ABCMeta' does not define '__getitem__', so the '[]' operator cannot be used on its instances

from typing import List  def get_list() -> List[int]:     return [1, 2, 3] 

Is anyone able to better interpret that message then I can?

Thanks

回答1:

Was a bug in PyCharm. Resolved in 5.0.3. REF: https://youtrack.jetbrains.com/issueMobile/PY-17841

文章来源: Python 3.5 Typing ABCMeta does not define '__getitem__'