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GeezerVison is showing github.com — [3.11] gh-103479: [Enum] require __new__ to be considered a data type (GH-103495) by ethanfurman · Pull Request #103514 · python/cpython

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@ethanfurman

@ethanfurman ethanfurman commented Apr 13, 2023 •
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a mixin must have a new method to be interpreted as a data-type, an init method is not enough (restores pre-3.11 behavior)

(cherry picked from commit a6f9594)

Co-authored-by: Ethan Furman [email protected]

  • Issue: Unexpected behavior change in subclassing Enum class as of 3.11 #103479

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@ethanfurman
[3.11] pythongh-103479: [Enum] require __new__ to be considered a da…
ab60fdd
…ta type (pythonGH-103495)

a mixin must either have a __new__ method, or be a dataclass, to be interpreted as a data-type.
                    (cherry picked from commit a6f9594)

                    Co-authored-by: Ethan Furman <[email protected]>
This was referenced Apr 13, 2023
Unexpected behavior change in subclassing Enum class as of 3.11 #103479
Closed
gh-103479: [Enum] require __new__ to be considered a data type #103495
Merged
@bedevere-bot bedevere-bot added skip news awaiting core review labels Apr 13, 2023
ethanfurman added 3 commits April 13, 2023 09:58
@ethanfurman
remove mention of dataclass
102b7f8
@ethanfurman
restore mention of dataclass
faff581
@ethanfurman
Merge branch '3.11' into backport-a6f9594-3.11
8b53741
@ethanfurman
ethanfurman merged commit 3b929a7 into python:3.11 Apr 13, 2023
@bedevere-bot bedevere-bot removed the awaiting core review label Apr 13, 2023
@ethanfurman
ethanfurman deleted the backport-a6f9594-3.11 branch April 13, 2023 19:04
@prina404 prina404 mentioned this pull request Aug 12, 2025
Cannot import pyown with python<=3.11.3 jotonedev/pyown#38
Closed
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@ethanfurman @bedevere-bot
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