function_pattern_matching.py 文件源码

def _isotherguard(method):
        """Checks if `other` is a GuardFunc object."""

        @six.wraps(method)
        def checks(self, other):
            if not isinstance(other, GuardFunc):
                raise TypeError("The right-hand operand has to be instance of GuardFunc")
            return method(self, other)

        return checks