Display number with leading zeros?

Question

Given: a = 1 b = 10 c = 100How do I display a leading zero for all numbers with less than two digits?That is, 01 10 100

Answer 1

The good news is that we can accomplish this without conditional programming constructs by using format characters .... %03d - numeric values would be formatted with a width of 3, with leading 0's for values less than 100:

>>> "%03d" % num

'088'

>>> print("%03d" % num)

088

>>> num = 4

>>> print("%03d" % num)

004