Message 167832 - Python tracker

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Author	vstinner
Recipients	Arfrever, ishimoto, loewis, methane, mrabarnett, ncoghlan, pitrou, rurpy2, serhiy.storchaka, vstinner
Date	2012-08-09.20:46:42
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1344545203.11.0.1551159181.issue15216@psf.upfronthosting.co.za>
In-reply-to

Content
Note: it is not possible to reencode the buffer of decoded characters to compute the offset in bytes. Some codecs are not bijective. Examples: * b'\x00'.decode('utf7').encode('utf7') == b'+AAA-' * b'\xff'.decode('ascii', 'replace').encode('ascii', 'replace') == b'?' * b'\xff'.decode('ascii', 'ignore').encode('ascii', 'ignore') == b''

Note: it is not possible to reencode the buffer of decoded characters to compute the offset in bytes. Some codecs are not bijective.

Examples:

 * b'\x00'.decode('utf7').encode('utf7') == b'+AAA-'
 * b'\xff'.decode('ascii', 'replace').encode('ascii', 'replace') == b'?'
 * b'\xff'.decode('ascii', 'ignore').encode('ascii', 'ignore') == b''

History
Date	User	Action	Args
2012-08-09 20:46:43	vstinner	set	recipients: + vstinner, loewis, ishimoto, ncoghlan, pitrou, mrabarnett, Arfrever, methane, rurpy2, serhiy.storchaka
2012-08-09 20:46:43	vstinner	set	messageid: <1344545203.11.0.1551159181.issue15216@psf.upfronthosting.co.za>
2012-08-09 20:46:42	vstinner	link	issue15216 messages
2012-08-09 20:46:42	vstinner	create