def __init__(self, name, title, description, low, high, required_on_create=True, required_on_edit=False):
    super(RangeField, self).__init__(name, title, description, required_on_create, required_on_edit)
    self.low = low
    self.high = high
def __init__(self, name, title, description, low, high, required_on_create=True, required_on_edit=False):
    super(RangeField, self).__init__(name, title, description, required_on_create, required_on_edit)
    self.low = low
    self.high = high