weekdays.py

import datetime
fweekdays = {}
for i in range(1, 8):
    d = datetime.datetime(2015, 9, i)
    fweekdays[d.weekday()] = d

dates = {}
for weekday, d in fweekdays.items():
    dates[weekday] = []
    while d <= datetime.datetime.now():
        dates[weekday].append(d)
        d += datetime.timedelta(days=7)
print(dates)