[issue9820] Windows : os.listdir(b'.') doesn't raise an errorfor unencodablefilenames

[STINNER Victor]

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

> FindFirst/NextFileA will also do some other interesting conversions,
> such as the best-fit conversion (which the "mbcs" code doesn't do
> (anymore?)).

About mbcs, mbcs codec of Python 3.1 is like .encode('mbcs', 'replace') and 
.decode('mbcs', 'ignore') of Python 3.2 (see issue #850997). By default 
(strict error handler), it now raises errors on undecodable byte sequence and 
unencodable character, whereas Python 3.1 just ignores the error handler.

PyUnicode_EncodeFSDefault / PyUnicode_DecodeFSDefault uses the strict error 
handler.

I just added a note about mbcs in Doc/whatsnew/3.2.rst: r84750.

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title: Windows : os.listdir(b'.') doesn't raise an error for	unencodable filenames -> Windows : os.listdir(b'.') doesn't raise an errorfor	unencodablefilenames

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