A simple way to simulate the range() function when using datetime

datetime_range.py

from datetime import datetime as dt, timedelta as td




def datetime_range(start, end, step):
    assert end >= start, "The end date should be after in time than the start. End: {end} Start:{start}".format(end=end,
                                                                                                                start=start)

    i = 0
    shifted_start = start

    # `end - step` because we want to exclude end from the results
    while shifted_start < end - step:
        delta = i * step
        shifted_start = delta + start
        i += 1
        yield shifted_start



start = dt.now()
end = start.replace(hour=start.hour + 1)
step = td(minutes=5)
print("Start: %s" % start)
print("End: %s" % end)
print("Step: %s" % step)
for d in datetime_range(start, end, step):
    print(d)