#!/usr/bin/env python # -*- coding: utf-8 -*- __author__ = '####'   import datetime     def get_week_of_month(year, month, day):     """     获取指定的某天是某个月中的第几周     周一作为一周的开始     """     end = int(datetime.datetime(year, month, day).strftime("%W"))     begin = int(datetime.datetime(year, month, 1).strftime("%W"))     return end - begin + 1   if __name__ == '__main__':     print get_week_of_month(2015, 1, 4)     print get_week_of_month(2015, 1, 5)     print get_week_of_month(2015, 1, 15)     print get_week_of_month(2015, 1, 18)