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Re: Parsing ISO date/time strings - where did the parser go?

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On 09/06/2012 09:27 PM, John Nagle wrote:
> In Python 2.7:
> 
>    I want to parse standard ISO date/time strings such as
> 
> 	2012-09-09T18:00:00-07:00
> 
> into Python "datetime" objects.  The "datetime" object offers
> an output method , datetimeobj.isoformat(), but not an input
> parser.  There ought to be
> 
> 	classmethod datetime.fromisoformat(s)

http://docs.python.org/library/datetime.html#datetime.datetime.strptime

The ISO date/time format is dead simple and well-defined. strptime is
quite suitable.

> 
> but there isn't.  I'd like to avoid adding a dependency on
> a third party module like "dateutil".
> 
> The "Working with time" section of the Python wiki is so
> ancient it predates "datetime", and says so.
> 
> There's an iso8601 module on PyPi, but it's abandoned; it hasn't been
> updated since 2007 and has many outstanding issues.
> 
> There are mentions of "xml.utils.iso8601.parse" in
> various places, but the "xml" module that comes
> with Python 2.7 doesn't have xml.utils.
> 
> http://www.seehuhn.de/pages/pdate
> says:
> 
> "Unfortunately there is no easy way to parse full ISO 8601 dates using
> the Python standard library."
> 
> It looks like this was taken out of "xml" at some point,
> but not moved into "datetime".
> 
> 				John Nagle
> 

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Thread

Parsing ISO date/time strings - where did the parser go? John Nagle <nagle@animats.com> - 2012-09-06 12:27 -0700
  Re: Parsing ISO date/time strings - where did the parser go? Paul Rubin <no.email@nospam.invalid> - 2012-09-06 12:51 -0700
    Re: Parsing ISO date/time strings - where did the parser go? John Nagle <nagle@animats.com> - 2012-09-06 13:34 -0700
      Re: Parsing ISO date/time strings - where did the parser go? Miki Tebeka <miki.tebeka@gmail.com> - 2012-09-06 16:27 -0700
      Re: Parsing ISO date/time strings - where did the parser go? John Gleeson <jdgleeson@mac.com> - 2012-09-08 18:20 -0600
        Re: Parsing ISO date/time strings - where did the parser go? John Nagle <nagle@animats.com> - 2012-09-08 20:51 -0700
          Re: Parsing ISO date/time strings - where did the parser go? Roy Smith <roy@panix.com> - 2012-09-09 06:15 -0400
            Re: Parsing ISO date/time strings - where did the parser go? Mark Lawrence <breamoreboy@yahoo.co.uk> - 2012-09-09 12:20 +0100
  Re: Parsing ISO date/time strings - where did the parser go? Thomas Jollans <t@jollybox.de> - 2012-09-06 21:44 +0200
    Re: Parsing ISO date/time strings - where did the parser go? Roy Smith <roy@panix.com> - 2012-09-09 08:14 -0400
      Re: Parsing ISO date/time strings - where did the parser go? "Rhodri James" <rhodri@wildebst.demon.co.uk> - 2012-09-10 22:46 +0100
        Re: Parsing ISO date/time strings - where did the parser go? Chris Angelico <rosuav@gmail.com> - 2012-09-11 08:51 +1000
          Re: Parsing ISO date/time strings - where did the parser go? Roy Smith <roy@panix.com> - 2012-09-10 21:12 -0400
            Re: Parsing ISO date/time strings - where did the parser go? Ben Finney <ben+python@benfinney.id.au> - 2012-09-12 02:00 +1000
  Re: Parsing ISO date/time strings - where did the parser go? Dave Angel <d@davea.name> - 2012-09-06 15:54 -0400
    Re: Parsing ISO date/time strings - where did the parser go? Roy Smith <roy@panix.com> - 2012-09-06 19:44 -0400
      Re: Parsing ISO date/time strings - where did the parser go? André Malo <ndparker@gmail.com> - 2012-09-08 20:12 +0200
  Re: Parsing ISO date/time strings - where did the parser go? Roy Smith <roy@panix.com> - 2012-09-06 19:34 -0400
  Re: Parsing ISO date/time strings - where did the parser go? Terry Reedy <tjreedy@udel.edu> - 2012-09-06 22:12 -0400
  Re: Parsing ISO date/time strings - where did the parser go? Pete Forman <petef4+usenet@gmail.com> - 2012-09-12 13:31 +0100

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