[3.13] gh-126699: allow AsyncIterator to be used as a base for Protocols (GH-126702) by miss-islington · Pull Request #126762 · python/cpython · GitHub
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[3.13] gh-126699: allow AsyncIterator to be used as a base for Protocols (GH-126702) - #126762

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[3.13] gh-126699: allow AsyncIterator to be used as a base for Protocols (GH-126702)#126762
Yhg1s merged 1 commit into
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miss-islington:backport-feb3e0b-3.13

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@miss-islington

@miss-islington miss-islington commented Nov 12, 2024 •
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(cherry picked from commit feb3e0b)

Co-authored-by: Stephen Morton github@tungol.org

@tungol @miss-islington
pythongh-126699: allow AsyncIterator to be used as a base for Protoco…
0e45a7a 
…ls (pythonGH-126702)

(cherry picked from commit feb3e0b)

Co-authored-by: Stephen Morton <github@tungol.org>
This was referenced Nov 12, 2024
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@gpshead

gpshead commented Nov 13, 2024

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@AlexWaygood

AlexWaygood commented Nov 13, 2024

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This needs clear documentation as to the version constraints so that anyone attempting to rely on it knows specifically when it stopped working and in which patch releases it started working.

While its removal was a bug, this is also something that people can't reliably depend on in Python by simply knowing the major version if you backport it to 3.12 and 3.13...

I'm not sure I agree. I feel like by the same logic, we'd never backport any bugfixes?

Using multiple inheritance with typing.Protocol and collections.abc.AsyncIterator currently raises an exception at runtime on Python 3.13, which is a bug. This change fixes that bug so that an exception is no longer raised. We don't typically go to great lengths in our docs to state when bugs like this were fixed, do we?

@Yhg1s

Yhg1s commented Dec 2, 2024

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@Yhg1s
Yhg1s merged commit a5672be into python:3.13 Dec 2, 2024
@miss-islington
miss-islington deleted the backport-feb3e0b-3.13 branch January 2, 2026 19:01
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@AlexWaygood AlexWaygood AlexWaygood approved these changes
@JelleZijlstra JelleZijlstra Awaiting requested review from JelleZijlstra JelleZijlstra is a code owner

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@miss-islington @gpshead @AlexWaygood @Yhg1s @tungol