An easy way to pad the number with zeros depending on the number of digits [Python]

Chobenri.

In [1]: '{0:03d}'.format(2)
Out[1]: '002'

In [2]: '{0:03d}'.format(2000)
Out[2]: 2000

Blank areas are also filled.

In [3]: '{0:3d}'.format(2)
Out[3]: '  2'

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