base.py 文件源码

def __init__(self, precision=None, scale=None, asdecimal=False, **kw):
        """Construct a FLOAT.

        :param precision: Total digits in this number.  If scale and precision
          are both None, values are stored to limits allowed by the server.

        :param scale: The number of digits after the decimal point.

        """

        super(FLOAT, self).__init__(precision=precision, scale=scale,
                                    asdecimal=asdecimal, **kw)