types.py 文件源码

def _expression_adaptations(self):
        return {
            operators.mul: {
                Interval: Interval,
                Numeric: self.__class__,
                Integer: self.__class__,
            },
            # Py2K
            operators.div: {
                Numeric: self.__class__,
                Integer: self.__class__,
            },
            # end Py2K
            operators.truediv: {
                Numeric: self.__class__,
                Integer: self.__class__,
            },
            operators.add: {
                Numeric: self.__class__,
                Integer: self.__class__,
            },
            operators.sub: {
                Numeric: self.__class__,
                Integer: self.__class__,
            }
        }