[Baypiggies] importing variables into python namespace using argparse module

Abhishek Pratap abhishek.vit at gmail.com
Wed Sep 7 23:01:33 CEST 2011


Thanks Simeon and Rami. Works now.

-Abhi




On Wed, Sep 7, 2011 at 1:55 PM, Rami Chowdhury <rami.chowdhury at gmail.com> wrote:
> On Wed, Sep 7, 2011 at 21:11, Abhishek Pratap <abhishek.vit at gmail.com> wrote:
>> This might sound naive as I am trying to learn python.
>
> Not at all, we've all been there :-)
>
>> I am using argparse to parse the command line arguments but I am not
>> sure how they variables created by it are imported into python's
>> current namespace for downstream usage.
>
> The simple answer is that they're not. I'll explain further after the
> code sample
>
>> parser = argparse.ArgumentParser(description='Process some integers')
>>
>> parser.add_argument('--file_1', nargs=1 , type=file, required=True,
>> help='Name of file 1')
>> parser.add_argument('--file_2', nargs=1 , type=file, required=True,
>> help='Name of file 2')
>> parser.parse_args()
>
> Here, you need to capture the object that is returned from
> parser.parse_args() -- that object is where any data captured by the
> parser is stored, and you can access it from that object. So, for
> instance:
>
>>>> args = parser.parse_args()
>>>> print "File 1 is %s" % args.file_1
>
>> PS: Please let me know if this is not a appropriate forum to push such
>> questions and if there are other mailing list that I could use coz in
>> the coming days I am sure to send in a lot of email traffic.
>
> You could also try the main Python-language mailing list
> (python-list at python.org) -- there are more people on the list and you
> might get quicker responses to questions :-)
>
> Hope that helps,
> Rami
>
> --
> Rami Chowdhury
> "Never assume malice when stupidity will suffice." -- Hanlon's Razor
> +44-7581-430-517 / +1-408-597-7068 / +88-0189-245544
>


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