How to calculate difference between two dates in weeks in python

Question

I\'m trying to calculate the difference between two dates in \"weeks of year\". I can get the datetime object and get the days etc but not week numbers. I can\'t, of course,

Answer 1

How about calculating the difference in weeks between the Mondays within weeks of respective dates? In the following code, monday1 is the Monday on or before d1 (the same week):

from datetime import datetime, timedelta

monday1 = (d1 - timedelta(days=d1.weekday()))
monday2 = (d2 - timedelta(days=d2.weekday()))

print 'Weeks:', (monday2 - monday1).days / 7

Returns 0 if both dates fall withing one week, 1 if on two consecutive weeks, etc.