Python implementation capture a day is the week of a month

I've been looking for a long time but I can't find out how to get the date of the month in Python datetime.

Helpless under the help of students, students to write a module. If you know Python has this native library, please feel free to comment.

I'll make some notes.

#!/usr/bin/env python

# -*- coding: utf-8 -*-

__author__ = '####'

 

import datetime

 

 

def get_week_of_month(year, month, day):

    """

     Gets that the specified day is the week of the month 

     Monday is the beginning of the week 

    """

    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)