[mypyc] Fix unsafe borrowing of instance attributes with free-threading - #21688
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JukkaL merged 6 commits intoJul 7, 2026
Merged
[mypyc] Fix unsafe borrowing of instance attributes with free-threading#21688JukkaL merged 6 commits into
JukkaL merged 6 commits into
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p-sawicki
approved these changes
Jul 7, 2026
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Don't borrow native attributes any more, except for final native attributes (these can't be rebound, so they are safe to borrow), and attributes with vec types (vec requires explicit synchronization by design).
Work on mypyc/mypyc#1203.
I used coding agent assist for this, but manually reviewed changes.