def SetDayOfWeekHasService(self, dow, has_service=True):
    assert(dow >= 0 and dow < 7)
    self.day_of_week[dow] = has_service
Set service as running (or not) on a day of the week. By default the
dataset/ETHPy150Open google/transitfeed/transitfeed/serviceperiod.py/ServicePeriod.SetDayOfWeekHasService