[issue12006] strptime should implement %V or %u directive from libc

[Alexander Belopolsky]

Alexander Belopolsky added the comment:

For future reference, here is the example showing %Y %V ambiguity:

>>> date(2013,12,31).strftime('%Y %V %u')
'2013 01 2'
>>> date(2013,1,1).strftime('%Y %V %u')
'2013 01 2'

which is resolved by using %G

>>> date(2013,12,31).strftime('%G %V %u')
'2014 01 2'
>>> date(2013,1,1).strftime('%G %V %u')
'2013 01 2'

In other words, '2013 01 2' cannot be unambiguously parsed using '%Y %V %u' format.

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue12006>
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