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Re: problem with eval and time

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Date Tue, 6 Nov 2012 15:38:47 +1100
Subject Re: problem with eval and time
From Chris Angelico <rosuav@gmail.com>
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On Tue, Nov 6, 2012 at 3:29 PM, Wincent <ronggui.huang@gmail.com> wrote:
> Thanks.
>
> I fetch data from social networking sites and want to mark the time of access. I store all the information in a redis database, which converts everything into strings and I need to convert those strings back to original python objects when analyzing the data.

The easiest way, imho, is to store Unix times - simply the number of
seconds since 1970, as an integer or float. That can easily and safely
be turned into a string and back (floats might lose a little accuracy,
depending on how you do it, but the difference will be a small
fraction of a second).

>>> time.time()
1352176547.787
>>> time.gmtime(1352176547.787)
time.struct_time(tm_year=2012, tm_mon=11, tm_mday=6, tm_hour=4,
tm_min=35, tm_sec=47, tm_wday=1, tm_yday=311, tm_isdst=0)

Easy and unambiguous. Also compact, which may or may not be a selling point.

ChrisA

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Thread

problem with eval and time Wincent <ronggui.huang@gmail.com> - 2012-11-05 19:32 -0800
  Re: problem with eval and time alex23 <wuwei23@gmail.com> - 2012-11-05 20:22 -0800
    Re: problem with eval and time Wincent <ronggui.huang@gmail.com> - 2012-11-05 20:29 -0800
      Re: problem with eval and time Chris Angelico <rosuav@gmail.com> - 2012-11-06 15:38 +1100
      Re: problem with eval and time Dave Angel <d@davea.name> - 2012-11-05 23:42 -0500
  Re: problem with eval and time Dennis Lee Bieber <wlfraed@ix.netcom.com> - 2012-11-06 00:06 -0500

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