gh-143969: Fix frozen+slotted dataclass setattr crash ambiguity#143971

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dawdameet wants to merge 3 commits intopython:mainfrom

dawdameet:fix-frozen-slots-setattr

Commits on Jan 17, 2026

gh-143969: Fix frozen+slotted dataclass __setattr__ crash ambiguity
dawdameet
committed
gh-143969: Fix crash in frozen slots dataclasses by patching closure cells
dawdameet
committed

Commits on Jan 18, 2026

Update Misc/NEWS.d/next/Library/2026-01-17-23-15-55.gh-issue-143969.Waq8zN.rst

dawdameet
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aisk
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