python range for datetime

datetimerange.py

import datetime

class datetimerange:
    def __init__(self, startdate, enddate, delta=None):
        self.startdate = startdate
        self.enddate = enddate
        self._current_date = self.startdate
        self._is_side_positive = self.startdate <= self.enddate
        if delta is None:
            if self.side:
                delta = datetime.timedelta(minutes=1)
            else:
                delta = datetime.timedelta(minutes=-1)
        self.delta = delta

    def _check_delta(self):
        is_delta_positive = self.delta > datetime.timedelta(minutes=0)
        return self._is_side_positive == is_delta_positive
    
    def __iter__(self):
        return self
   
    def __next__(self):
        if self._check_delta():
            if self._is_side_positive and self._current_date < self.enddate:
                current_date = self._current_date
                self._current_date += self.delta
                return current_date
            elif not self._is_side_positive and self._current_date > self.enddate:
                current_date = self._current_date
                self._current_date += self.delta
                return current_date
        raise StopIteration

if __name__=="__main__"
    startdatetime = datetime.datetime.now()
    enddatetime = startdatetime + datetime.timedelta(hours=6)
    for dt in datetimerange(startdatetime, enddatetime, datetime.timedelta(minutes=10)):
        print(dt)