Message 263569 - Python tracker

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In-reply-to
Author	serhiy.storchaka
Recipients	arbyter, ezio.melotti, mrabarnett, pitrou, serhiy.storchaka
Date	2016年04月16日.17:41:33
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1460828493.99.0.935073707321.issue26784@psf.upfronthosting.co.za>

Content
First, in the context of Python a crash means a core dump or an analogue on Windows. In this case the code just works not as you expected. The short answer: s should be a unicode. In your code "ä" is encoded as 8-bit string '\xc3\xa4'. When matched, every bytes is independently expanded to Unicode range. The first byte becomes u'\xc3' = u'Ã', the second byte becomes u'¤', non-alphanumeric. '[\s\w]' doesn't match u'Ã¤'. "ü" is encoded as 8-bit string '\xc3\xbc'. The second byte becomes u'1⁄4', numeric. '[\s\w]' matches u'Ã1⁄4'.

Content

First, in the context of Python a crash means a core dump or an analogue on Windows. In this case the code just works not as you expected.
The short answer: s should be a unicode.
In your code "ä" is encoded as 8-bit string '\xc3\xa4'. When matched, every bytes is independently expanded to Unicode range. The first byte becomes u'\xc3' = u'Ã', the second byte becomes u'¤', non-alphanumeric. '[\s\w]*' doesn't match u'Ã¤'.
"ü" is encoded as 8-bit string '\xc3\xbc'. The second byte becomes u'1⁄4', numeric. '[\s\w]*' matches u'Ã1⁄4'.

History
Date	User	Action	Args
2016年04月16日 17:41:34	serhiy.storchaka	set	recipients: + serhiy.storchaka, pitrou, ezio.melotti, mrabarnett, arbyter
2016年04月16日 17:41:33	serhiy.storchaka	set	messageid: <1460828493.99.0.935073707321.issue26784@psf.upfronthosting.co.za>
2016年04月16日 17:41:33	serhiy.storchaka	link	issue26784 messages
2016年04月16日 17:41:33	serhiy.storchaka	create

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