cjl wrote: > I want to convert strings (ex. '3', '32') to strings with left padded > zeroes (ex. '003', '032'), so I tried this: > > string1 = '32' > string2 = "%03s" % (string1) > print string2 > > >32 > > This doesn't work.
Documentation == """ Flag Meaning 0 The conversion will be zero padded for numeric values. """ "Numeric values" means when converting from a numeric value as in "%03d", but not "%03s". If you think "numeric values" is vague or misleading -- K&R (v2 p243) has "numeric conversions" -- then submit a documentation patch. > If I cast string1 as an int it works: Python doesn't have casts. You mean "convert". You may like to consider the zfill method of string objects: >>> "3".zfill(5) '00003' or the even more versatile rjust method: >>> "3".rjust(5, '0') '00003' >>> "3".rjust(5, '*') '****3' >>> HTH, John -- http://mail.python.org/mailman/listinfo/python-list
