def SetWeekendService(self, has_service=True):
    self.SetDayOfWeekHasService(5, has_service)
    self.SetDayOfWeekHasService(6, has_service)
Set service as running (or not) on Saturday and Sunday.
dataset/ETHPy150Open google/transitfeed/transitfeed/serviceperiod.py/ServicePeriod.SetWeekendService