[issue42846] Using _multibytecodec module on Windows, test_threading/embed get failure

[STINNER Victor]

STINNER Victor <vstinner at python.org> added the comment:

I can reproduce the issue on Windows configured in Japanese language: ANSI code page cp932.

I managed to reproduce the bug on Linux with attached bug.py

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Added file: https://bugs.python.org/file49727/bug.py

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