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Groups > comp.lang.python > #24951

Re: Confusing datetime.datetime

From Damjan <gdamjan@gmail.com>
Subject Re: Confusing datetime.datetime
Date 2012-07-06 04:05 +0200
References <jt4766$og9$1@dough.gmane.org> <mailman.1843.1341528901.4697.python-list@python.org> <4ff63f58$0$29988$c3e8da3$5496439d@news.astraweb.com>
Newsgroups comp.lang.python
Message-ID <mailman.1844.1341540292.4697.python-list@python.org> (permalink)

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> from datetime import datetime, timedelta, tzinfo
> ZERO = timedelta(0)
> HOUR = timedelta(hours=1)
>
> class UTC(tzinfo):
>      def utcoffset(self, dt):
>          return ZERO
>      def tzname(self, dt):
>          return "UTC"
>      def dst(self, dt):
>          return ZERO
>
> utc = UTC()
> t1 = datetime.now(tz=utc)
> t2 = datetime(t1.year, t1.month, t1.day, tzinfo=utc)
> assert t1.tzinfo == t2.tzinfo
>
>
> No assertion error at all.
>
> This makes me think that the "retardation" as you put it is not in
> Python's datetime module at all, but in pytz.
>
> What does TZ == TZ give? If it returns False, I recommend you report it
> as a bug against the pytz module.

It returns True, so it seems to be changed in the datetime object??

I tried both 2.7 and 3.2

-- 
damjan

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Thread

Re: Confusing datetime.datetime Damjan <gdamjan@gmail.com> - 2012-07-06 00:55 +0200
  Re: Confusing datetime.datetime Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2012-07-06 01:28 +0000
    Re: Confusing datetime.datetime Damjan <gdamjan@gmail.com> - 2012-07-06 04:05 +0200
  Re: Confusing datetime.datetime Hans Mulder <hansmu@xs4all.nl> - 2012-07-06 18:41 +0200
    Re: Confusing datetime.datetime Damjan <gdamjan@gmail.com> - 2012-07-08 23:49 +0200

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