[Python-Dev] RE: [Python-checkins] python/dist/src/Lib
_strptime.py, 1.35, 1.36
Brett C.
bac at OCF.Berkeley.EDU
Mon Oct 18 20:25:27 CEST 2004
Tony Meyer wrote:
>>Index: _strptime.py
>
> [...]
>
>>+ # For some reason when Dec 31 falls on a Monday the
>>week of the year is
>>+ # off by a week; verified on both OS X and Solaris.
>>+ elif weekday == 0 and week_of_year_start == 6 and
>>week_of_year >= 52:
>>+ week_of_year += 1
>
>
> Is this right? At the moment, if I ask for Monday in the 52nd week of 2008,
> I get the 5th of January 2009:
>
>
>>>>time.strptime("2008 52 1", "%Y %U %w")
>
> (2009, 1, 5, 0, 0, 0, 0, 371, -1)
>
> For reference, Monday in the previous week is the 22nd of December:
>
>
>>>>time.strptime("2008 51 1", "%Y %U %w")
>
> (2008, 12, 22, 0, 0, 0, 0, 357, -1)
>
> Wouldn't December 29 2008 be the right answer? This is the result without
> that if:
>
>
>>>>time.strptime("2008 52 1", "%Y %U %w")
>
> (2008, 12, 29, 0, 0, 0, 0, 364, -1)
>
Can you file a bug report about this?
And the test case I was using that triggered the need for that is 1906-12-31
which is a Monday but changes what week it is based on whether you use U or W.
which makes no sense since both U and W should consider it the same week.
Had the same result for 1917-12-31.
-Brett
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