python format reverse Posted on 2018-07-Fri Views: Views: 1234567891011>>> import parse>>> format_string = 'PN-{:0>9}'>>> id = 123>>> pn = format_string.format(id)>>> pn'PN-000000123'>>> parsed = parse.parse(format_string, pn)>>> parsed<Result ('123',) {}>>>> parsed[0]'123'