Given a date range how can we break it up into N contiguous sub-intervals?

Question

I am accessing some data through an API where I need to provide the date range for my request, ex. start=\'20100101\', end=\'20150415\'. I thought I would speed this up by

Answer 1

I've created a function, which includes the end date in date split.

from dateutil import rrule
from dateutil.relativedelta import relativedelta
from dateutil.rrule import DAILY


def date_split(start_date, end_date, freq=DAILY, interval=1):
    """

    :param start_date:
    :param end_date:
    :param freq: refer rrule arguments can be SECONDLY, MINUTELY, HOURLY, DAILY, WEEKLY etc
    :param interval: The interval between each freq iteration.
    :return: iterator object
    """
    # remove microsecond from date object as minimum allowed frequency is in seconds.
    start_date = start_date.replace(microsecond=0)
    end_date = end_date.replace(microsecond=0)
    assert end_date > start_date, "end_date should be greated than start date."
    date_intervals = rrule.rrule(freq, interval=interval, dtstart=start_date, until=end_date)
    for date in date_intervals:
        yield date
    if date != end_date:
        yield end_date