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Date: Tue, 7 Jun 2011 14:44:58 -0700
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Subject: Re: Dynamic Zero Padding.
From: Chris Rebert <clp2@rebertia.com>
To: Friedrich Clausen <fred@derf.nl>
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On Tue, Jun 7, 2011 at 2:36 PM, Friedrich Clausen <fred@derf.nl> wrote:
> Hello All,
>
> I want to print some integers in a zero padded fashion, eg. :
>
>>>> print("Testing %04i" % 1)
> Testing 0001
>
> but the padding needs to be dynamic eg. sometimes %05i, %02i or some
> other padding amount. But I can't insert a variable into the format
> specification to achieve the desirable padding.
>
> I would be much obliged if someone can give me some tips on how to
> achieve a variably pad a number.

http://docs.python.org/library/stdtypes.html#str.zfill

Cheers,
Chris