[issue12281] bytes.decode('mbcs', 'ignore') does replace undecodable bytes on Windows Vista or later

[STINNER Victor]

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

Decode examples, ANSI=cp932:

>>> codecs.code_page_decode(1252, b'\x80')
('\u20ac', 1)
>>> codecs.code_page_decode(932, b'\x82')
...
UnicodeDecodeError: 'mbcs' codec can't decode bytes in position 0--1: No mapping for the Unicode character exists in the target code page.
>>> codecs.code_page_decode(932, b'\x82', 'replace')
('・', 1)
>>> codecs.code_page_decode(932, b'\x82', 'ignore')
('', 0)

Oh, the encoding name is wrong in the decoding errors.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12281>
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