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Title: gh-145202: Fix crash in unicodedata's GraphemeBreakIterator and Segment by serhiy-storchaka · Pull Request #145216 · python/cpython · GitHub

Open Graph Title: gh-145202: Fix crash in unicodedata's GraphemeBreakIterator and Segment by serhiy-storchaka · Pull Request #145216 · python/cpython

X Title: gh-145202: Fix crash in unicodedata's GraphemeBreakIterator and Segment by serhiy-storchaka · Pull Request #145216 · python/cpython

Description: Remove the tp_clear slots and make Segment members read-only. Issue: gh-145202

Open Graph Description: Remove the tp_clear slots and make Segment members read-only. Issue: gh-145202

X Description: Remove the tp_clear slots and make Segment members read-only. Issue: gh-145202

Opengraph URL: https://github.com/python/cpython/pull/145216

X: @github

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4134f4d gh-145202: Fix crash in unicodedata's GraphemeBreakIterator and Segment serhiy-storchaka Feb 25, 2026 https://github.com/python/cpython/pull/145216/commits/4134f4dd911078e0630d11097609c94c7561ab99
d1f651f Add tests for reference loops. serhiy-storchaka Feb 25, 2026 https://github.com/python/cpython/pull/145216/commits/d1f651fcfbb16557e47e93602ac351969b2eb4f8
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