[3.14] gh-135228: When @dataclass(slots=True) replaces a dataclass, make the original class collectible (take 2) (GH-137047)#137666
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hugovk merged 1 commit intopython:3.14python/cpython:3.14from Aug 12, 2025
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[3.14] gh-135228: When @dataclass(slots=True) replaces a dataclass, make the original class collectible (take 2) (GH-137047)#137666hugovk merged 1 commit intopython:3.14python/cpython:3.14from miss-islington:backport-6859b95-3.14miss-islington/cpython:backport-6859b95-3.14Copy head branch name to clipboard
hugovk merged 1 commit intopython:3.14python/cpython:3.14from
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…ke the original class collectible (take 2) (pythonGH-137047) Remove the `__dict__` and `__weakref__` descriptors from the original class when creating a dataclass from it. An interesting hack, but more localized in scope than pythongh-135230. This may be a breaking change if people intentionally keep the original class around when using `@dataclass(slots=True)`, and then use `__dict__` or `__weakref__` on the original class. (cherry picked from commit 6859b95) Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com> Co-authored-by: Alyssa Coghlan <ncoghlan@gmail.com> Co-authored-by: Petr Viktorin <encukou@gmail.com> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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!buildbot aarch64 Fedora Stable LTO . PGO |
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🤖 New build scheduled with the buildbot fleet by @hugovk for commit d764eb6 🤖 Results will be shown at: https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F137666%2Fmerge The command will test the builders whose names match following regular expression: The builders matched are:
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JelleZijlstra
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…ass, make the original class collectible (take 2) (pythonGH-137047) (python#137666) Co-authored-by: Jelle Zijlstra <jelle.zijlstra@gmail.com> Co-authored-by: Alyssa Coghlan <ncoghlan@gmail.com> Co-authored-by: Petr Viktorin <encukou@gmail.com> Co-authored-by: Serhiy Storchaka <storchaka@gmail.com>
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Remove the
__dict__and__weakref__descriptors from the original class when creating a dataclass from it.An interesting hack, but more localized in scope than gh-135230.
This may be a breaking change if people intentionally keep the original class around
when using
@dataclass(slots=True), and then use__dict__or__weakref__on theoriginal class.
(cherry picked from commit 6859b95)
Co-authored-by: Jelle Zijlstra jelle.zijlstra@gmail.com
Co-authored-by: Alyssa Coghlan ncoghlan@gmail.com
Co-authored-by: Petr Viktorin encukou@gmail.com
Co-authored-by: Serhiy Storchaka storchaka@gmail.com