stone_validators.py 文件源码

def __init__(self, min_value=None, max_value=None):
        """
        A more restrictive minimum or maximum value can be specified than the
        range inherent to the defined type.
        """
        if min_value is not None:
            assert isinstance(min_value, numbers.Integral), \
                'min_value must be an integral number'
            assert min_value >= self.minimum, \
                'min_value cannot be less than the minimum value for this ' \
                'type (%d < %d)' % (min_value, self.minimum)
            self.minimum = min_value
        if max_value is not None:
            assert isinstance(max_value, numbers.Integral), \
                'max_value must be an integral number'
            assert max_value <= self.maximum, \
                'max_value cannot be greater than the maximum value for ' \
                'this type (%d < %d)' % (max_value, self.maximum)
            self.maximum = max_value