def __str__(self):
        strftime = settings.SHORT_DATETIME_FORMAT
        return (self.event.title, date(self.dt_start.strftime, strftime), date(self.dt_end.strftime, strftime)) % '%s %s - %s'
dataset/ETHPy150Open python/pythondotorg/events/models.py/OccurringRule.__str__/swapped operands of `%`