Dynamic Zero Padding.

[Prasad, Ramit]

Python 2.6.x
>>> 'test {0:.2f}'.format(1)
'test 1.00'
>>> 'test {0:{1}f}'.format(1,2)
'test 1.000000'
>>> 'test {0:{1}f}'.format(1,.2)
'test 1.00'
>>> 'test {0:.{1}f}'.format(1,2)
'test 1.00'


Ramit


Ramit Prasad | JPMorgan Chase Investment Bank | Currencies Technology
712 Main Street | Houston, TX 77002
work phone: 713 - 216 - 5423


-----Original Message-----
From: python-list-bounces+ramit.prasad=jpmchase.com at python.org [mailto:python-list-bounces+ramit.prasad=jpmchase.com at python.org] On Behalf Of Friedrich Clausen
Sent: Tuesday, June 07, 2011 4:37 PM
To: python-list at python.org
Subject: Dynamic Zero Padding.

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.

Cheers,

Fred.

Thanks,

Fred.
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