1#!/usr/bin/env python 2import datetime 3import sys 4 5 6def build_to_date(build): 7 letter = build[2] 8 day = int(build[3:5]) 9 10 month = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'.index(letter) * 3 11 year = 2009 + (month / 12) 12 month %= 12 13 14 return datetime.date(year, month + 1, 1) + datetime.timedelta(days=day - 1) 15 16 17if __name__ == '__main__': 18 if len(sys.argv) != 2: 19 sys.exit('usage: aday BUILD_NUMBER') 20 21 print build_to_date(sys.argv[1]) 22