I suspect a bug. Can you report on bugs.python.org and CC me?
On Sun, Dec 6, 2020 at 10:16 PM Paul Bryan <pbr...@anode.ca> wrote:
> Is this the expected behavior?
>
> Python 3.9.0 (default, Oct 7 2020, 23:09:01)
>
> [GCC 10.2.0] on linux
>
> Type "help", "copyright", "credits" or "license" for more information.
>
> >>> import typing
>
> >>> TD = typing.TypedDict("TD", {"a": str}, total=False)
>
> >>> TD.__total__
>
> False
>
> >>> TD.__required_keys__
>
> frozenset({'a'})
>
> >>> TD.__optional_keys__
>
> frozenset()
>
> >>>
>
>
> It seems to me "a" should not be a required key, but in fact an optional
> key.
>
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