[issue11193] test_subprocess error on AIX

[STINNER Victor]

STINNER Victor <victor.stinner at haypocalc.com> added the comment:

> I don't understand why the test pass on FreeBSD, Solaris and
> Mac OS X, but not on AIX.

Oh, the command line and the filesystem encodings may be different. test_undecodable_env() of test_subprocess.py uses os.environ which uses sys.getfilesystemencoding(), whereas test_undecodable_code() of test_cmd_line.py uses _Py_char2wchar() which uses mbstowcs() functions (which use the locale encoding).

sys.getfilesystemencoding() is initialized from nl_langinfo(CODESET).

nl_langinfo(CODESET) gives maybe "ISO-8859-1" (or an alias to this encoding) even if LC_ALL=C.

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<http://bugs.python.org/issue11193>
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