Message 114211 - Python tracker

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In-reply-to
Author	vstinner
Recipients	vstinner
Date	2010年08月18日.11:56:02
SpamBayes Score	7.0827804e-07
Marked as misclassified	No
Message-id	<1282132564.59.0.094866961442.issue9632@psf.upfronthosting.co.za>

Content
sys.setfilesystemencoding() function is dangerous because it introduces a lot of inconsistencies: this function is unable to reencode all filenames in all objects (eg. Python is unable to find filenames in user objects or 3rd party libraries). Eg. if you change the filesystem from utf8 to ascii, it will not be possible to use existing non-ascii (unicode) filenames: they will raise UnicodeEncodeError. As sys.setdefaultencoding() in Python2, I think that sys.setfilesystemencoding() is the root of evil :-) PYTHONFSENCODING (issue #8622) is the right solution to set the filesysteme encoding. Attached patch removes sys.setfilesystemencoding().

Content

sys.setfilesystemencoding() function is dangerous because it introduces a lot of inconsistencies: this function is unable to reencode all filenames in all objects (eg. Python is unable to find filenames in user objects or 3rd party libraries). Eg. if you change the filesystem from utf8 to ascii, it will not be possible to use existing non-ascii (unicode) filenames: they will raise UnicodeEncodeError.
As sys.setdefaultencoding() in Python2, I think that sys.setfilesystemencoding() is the root of evil :-) PYTHONFSENCODING (issue #8622) is the right solution to set the filesysteme encoding.
Attached patch removes sys.setfilesystemencoding().

History
Date	User	Action	Args
2010年08月18日 11:56:04	vstinner	set	recipients: + vstinner
2010年08月18日 11:56:04	vstinner	set	messageid: <1282132564.59.0.094866961442.issue9632@psf.upfronthosting.co.za>
2010年08月18日 11:56:02	vstinner	link	issue9632 messages
2010年08月18日 11:56:02	vstinner	create

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