strip unicode whitespace about iniconfig HOT 5 OPEN

as is iniconfig is not unicode aware, so this one is a really tricky one to fix
its def not on my own roadmap

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@RonnyPfannschmidt what about doing strip as (in case the content read from the file is of type unicode):

>>> from unicodedata import name
>>> import sys
>>> import re
>>> spaces = u''.join(re.findall(r'\s', u''.join(unichr(c) for c in xrange(sys.maxunicode+1)), re.UNICODE))
>>> 'envlist '.strip(spaces)
u'envlist'
>>> name(u'\xA0')
'NO-BREAK SPACE
>>> u'envlist\xA0'.strip(spaces)
u'envlist'
>>> 

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An alternative solution would be to try to avoid such configs by either warning when such lines are detected.

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i am fine with any consistent solution - i just don't dont have the time/motivation to do the complete dance of ensuring its consistent

right now iniconfig is not unicode aware and works in terms of native strings and ascii whitespace

note that your example generates the spaces in a pretty expensive manner

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@gaborbernat with the new release unicode support is in but unicode whitespace is not yet considered

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