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dict() should support anything with .keys() and __getitem__ #4409
Description
from typing import List
class Foo:
def keys(self) -> List[str]:
return ['a', 'b', 'c']
def __getitem__(self, key: str) -> str:
return f'value of {key}'
print(dict(Foo())) # {'a': 'value of a', 'b': 'value of b', 'c': 'value of c'}works at runtime but fails type check
tkinter widgets are like this, they aren't Mapping but they have .keys() and __getitem__
Activity
[-]dict() should anything with .keys() and __getitem__[/-][+]dict() should support anything with .keys() and __getitem__[/+]srittau commentedon Aug 7, 2020
Sounds reasonable. See also #3576 and #4325.