Re: [Matplotlib-users] datestr2num of year and month fails for February on September 30

[Eric F. <ef...@ha...>]

On 2013/09/30 3:45 AM, Mark Bakker wrote:
> The design of the function datestr2num, unfortunately, has an undesired
> side-effect.
> Today (September 30) I cannot convert monthly data, as February doesn't
> have 30 days.
> Conversion of:
> datestr2num('2000-02')
> Gives an error:
> ValueError: day is out of range for month
>
> Should I file a bug report or a feature request?

I would classify it as a bug resulting from a bad default in dateutil.

Eric

>
> Thanks,
>
> Mark
>
>
>
>     On Thu, Sep 19, 2013 at 11:38 PM, Goyo <goy...@gm...
>     <mailto:goy...@gm...>> wrote:
>
>         2013/9/19 Mark Bakker <ma...@gm...
>         <mailto:ma...@gm...>>:
>          > Hello List,
>          >
>          > When I use datestr2num('2010-05') it nicely converts that to
>         a number
>          > representing the date.
>          > When I convert that number back with num2date, it turns out
>         it sets the day
>          > to the 19th of the month. The dime is 0:00:00.
>          > Any reason it is set to the 19th instead of the first?
>          > Maybe because today it the 19th, or is that just a coincidence?
>
>         datestr2num calls dateutil.parser.parse, which by default uses the
>         current date at 00:00:00 for missing fields. The dateutil function
>         also can use a "default" argument to change this bahavoir but it is
>         not available in datestr2num.
>
>         http://labix.org/python-dateutil#head-a23e8ae0a661d77b89dfb3476f85b26f0b30349c
>
>         Goyo
>
>
>
>
>
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