from datetime import date
def check_week_day(day_date):
	if day_date.weekday() == 5 or day_date.weekday() == 6:
		return 1
	else:
		return 0
def check(start_date, end_date):
	tmp_date = start_date
	res = 0
	days_counter = 1
	month_counter = 1
	year_counter = 1
	while tmp_date != end_date:
		try:
			tmp_date = date(tmp_date.year, tmp_date.month, tmp_date.day + days_counter)
			res += check_week_day(tmp_date)
		except ValueError:
			try:
				tmp_date = date(tmp_date.year, tmp_date.month + month_counter, days_counter - tmp_date.day)	
				res += check_week_day(tmp_date)
			except ValueError:
				tmp_date = date(some_date.year, some_date.month, some_date.day)
				res += check_week_day(tmp_date)
		days_counter += 1
	return res

#!/usr/bin/env python
import datetime
def count_weekend(start, end):
    """
    >>> start =  datetime.date(2014, 4, 21)
    >>> end = datetime.date(2013, 1, 21)
    >>> count_weekend(start, end)
    130
    """
    delta = abs((start - end).days /7) * 2
    if abs((start - end).days % 7) > 1:
        delta += 2
    elif abs((start - end).days % 7):
        delta += 1
    return delta
if __name__ == '__main__':
     import doctest
     doctest.testmod()

from datetime import date,timedelta
""
def weekCount(from_date, to_date):
    return len([1 for i in range((to_date - from_date).days + 1)
                if (from_date + timedelta(i)).isoweekday() in [6,7]])