[issue46399] Addition of `mapping` attribute to dict views classes has inadvertently broken type-checkers

[Guido van Rossum]

Guido van Rossum <guido at python.org> added the comment:

Given all this discussion I defer to Serhiy and Inada-San.

On Wed, Jan 19, 2022 at 02:23 Serhiy Storchaka <report at bugs.python.org>
wrote:

>
> Serhiy Storchaka <storchaka+cpython at gmail.com> added the comment:
>
> I share concerns of Inada-san. I also think that keeping a status quo
> (ignoring the mapping attribute in typing) is the lesser evil. I am not
> sure that exposing this attribute was a good idea. We do not expose
> attributes list and index for list iterators.
>
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--Guido (mobile)

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