Re: How to tell how many weeks apart two datetimes are?

References	<kci2m1$fp4$1@panix2.panix.com> <50ECA2C1.1000305@mrabarnett.plus.com>
Date	2013-01-08 22:54 +0000
Subject	Re: How to tell how many weeks apart two datetimes are?
From	Oscar Benjamin <oscar.j.benjamin@gmail.com>
Newsgroups	comp.lang.python
Message-ID	<mailman.295.1357685662.2939.python-list@python.org> (permalink)

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On 8 January 2013 22:50, MRAB <python@mrabarnett.plus.com> wrote:
> On 2013-01-08 21:22, Roy Smith wrote:
>>
>> How do you tell how many weeks apart two datetimes (t1 and t2) are?
>> The "obvious" solution would be:
>>
>> weeks = (t2 - t1) / timedelta(days=7)
>>
>> but that doesn't appear to be allowed.  Is there some fundamental
>> reason why timedelta division not supported?
>>
> Try this:
>
> weeks = (t2 - t1).days / 7

You beat me to it...

$ python
Python 2.7.3 (default, Sep 26 2012, 21:51:14)
[GCC 4.7.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import datetime
>>> dt1 = datetime.datetime.now()
>>> dt2 = dt1 - datetime.timedelta(days=8)
>>> (dt2 - dt1) / 7 > datetime.timedelta(days=14)
False


Oscar

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Thread

How to tell how many weeks apart two datetimes are? roy@panix.com (Roy Smith) - 2013-01-08 16:22 -0500
  Re: How to tell how many weeks apart two datetimes are? marduk <marduk@python.net> - 2013-01-08 16:31 -0500
  Re: How to tell how many weeks apart two datetimes are? Ian Kelly <ian.g.kelly@gmail.com> - 2013-01-08 14:33 -0700
  Re: How to tell how many weeks apart two datetimes are? Ian Kelly <ian.g.kelly@gmail.com> - 2013-01-08 14:36 -0700
  Re: How to tell how many weeks apart two datetimes are? MRAB <python@mrabarnett.plus.com> - 2013-01-08 22:50 +0000
  Re: How to tell how many weeks apart two datetimes are? Oscar Benjamin <oscar.j.benjamin@gmail.com> - 2013-01-08 22:54 +0000

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