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Fix title() and capitalize() - #7717

Merged

youknowone merged 4 commits into

RustPython:mainfrom

joshuamegnauth54:titlecase-fixes

May 9, 2026

Merged

Fix title() and capitalize()#7717
youknowone merged 4 commits into
RustPython:mainfrom
joshuamegnauth54:titlecase-fixes

Commits on May 9, 2026
- PyBytes.title should be ASCII-only.
  
  joshuamegnauth54
  authored and
  youknowone
  committed
  9d8d34e
- Use icu_casemap over unicode-casing for titles
  
  joshuamegnauth54
  authored and
  youknowone
  committed
  edc87f2
- Use icu_casemap for capitalize()
  
  joshuamegnauth54
  authored and
  youknowone
  committed
  58d8b7c
- Match CPython's title() exactly
  
  joshuamegnauth54
  authored and
  youknowone
  committed
  ce75f32