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Title: Disagreement with CPython for str.istitle/title/isdigit/isidentifier/isnumeric · Issue #7527 · RustPython/RustPython · GitHub

Open Graph Title: Disagreement with CPython for str.istitle/title/isdigit/isidentifier/isnumeric · Issue #7527 · RustPython/RustPython

X Title: Disagreement with CPython for str.istitle/title/isdigit/isidentifier/isnumeric · Issue #7527 · RustPython/RustPython

Description: Python Documentation or reference to CPython source code tested on current main: 1a9b10e There are many examples and I picked one. # the following is True in CPython and False in RustPython print( "\u1c89".istitle() == False, "DZ".title()...

Open Graph Description: Python Documentation or reference to CPython source code tested on current main: 1a9b10e There are many examples and I picked one. # the following is True in CPython and False in RustPython print( ...

X Description: Python Documentation or reference to CPython source code tested on current main: 1a9b10e There are many examples and I picked one. # the following is True in CPython and False in RustPython print( ...

Opengraph URL: https://github.com/RustPython/RustPython/issues/7527

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#7748https://github.com/RustPython/RustPython/pull/7748
Disagreement with CPython for str.istitle/title/isdigit/isidentifier/isnumerichttps://github.com/RustPython/RustPython/issues/7527#top
#7748https://github.com/RustPython/RustPython/pull/7748
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on Mar 28, 2026https://github.com/RustPython/RustPython/issues/7527#issue-4160055360
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