Is it possible to specify dictview object as the typing hint in Python?

user_8288198 0
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I'm not sure the documentation contains any concrete info on the type of view objects. I wasn't able to locate it (i.e. <class 'dict_values'> in the dict's source code. Is there a way to explicitly specify this 'view class'? And does it make sense in the first place? Example:

def func1(arg: dictview) -> None:
    pass
type-hinting annotations python
2 Answers

You're looking for the typing.MappingView type hint or any of its related types like KeysView, ItemsView, ValuesView.

user_4760

typing.MappingView is now deprecated in python 3.9 , You can use collections.abc.MappingView

collections.abc.MappingView
collections.abc.ItemsView
collections.abc.KeysView
collections.abc.ValuesView
user_139445240
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