A python script for generate daily and monthly date in range

date_range.py

import datetime
from dateutil import relativedelta

def daterange(start, end, freq="daily"):
    if freq == "daily":
        number_of_days = int ((end_date - start_date).days) +1
        for n in range(number_of_days):
            yield start_date + datetime.timedelta(n)

        return

    if freq == "monthly":
        number_of_months = int((end_date - start_date).days/30) +1
        for n in range(number_of_months):
            yield start_date + relativedelta.relativedelta(months=n)

        return

    if freq == "weekly":
        number_of_days = int ((end_date - start_date).days) + 1
        for n in range(0,number_of_days,7):
            yield start_date + datetime.timedelta(n)
        return

    else:
        print("I don't like support other range")


start_date = datetime.date(2007, 1, 3)
end_date = datetime.date(2016, 11, 30)

for single_date in daterange(start_date, end_date,"weekly"):
    print (single_date.strftime("%Y-%m-%d"))

# for single_date in daterange(start_date, end_date,"monthly"):
#     print (single_date.strftime("%Y-%m"))