How to increment a value with leading zeroes?

Question

What would be the best way to increment a value that contains leading zeroes? For example, I\'d like to increment \"00000001\". However, it should be noted that the number of

Answer 1

Presumably, you specifically mean an integer represented as a string with leading zeros?

If that's the case, I'd do it thusly:

>>> a
'00000000000000099'
>>> l = len(a)
>>> b = int(a)+1
>>> b
100
>>> ("%0"+"%dd" % l) % b
'00000000000000100'