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Re: Dynamic Zero Padding.

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  Re: Dynamic Zero Padding. MRAB <python@mrabarnett.plus.com> - 2011-06-07 23:00 +0100

#7198 — Re: Dynamic Zero Padding.

On 07/06/2011 22:36, Friedrich Clausen 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.
>
 >>> "Testing %0*i" % (4, 1)
'Testing 0001'
 >>> "Testing %0*i" % (5, 1)
'Testing 00001'

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