def dst(self, dt):
        if self._isdst(dt):
            minutes = self._stdoffset - self._dstoffset
            return datetime.timedelta(minutes=minutes)
        else:
            return datetime.timedelta(0)
dataset/ETHPy150Open CouchPotato/CouchPotatoServer/libs/dateutil/tzwin.py/tzwinbase.dst/swapped operands of `-`