Fix title() and capitalize()#7717

Merged

youknowone merged 4 commits into

RustPython:mainfrom

joshuamegnauth54:titlecase-fixes

May 9, 2026

Commits on May 9, 2026

PyBytes.title should be ASCII-only.

joshuamegnauth54
authored and
youknowone
committed
Use icu_casemap over unicode-casing for titles

joshuamegnauth54
authored and
youknowone
committed
Use icu_casemap for capitalize()

joshuamegnauth54
authored and
youknowone
committed
Match CPython's title() exactly

joshuamegnauth54
authored and
youknowone
committed