在自定义异常中使用super和_uinit__uu[已关闭]

CustomError类(子类)继承自类异常(父类)。引用的行调用父类的构造函数。在CustomError的构造函数中调用它意味着在创建CustomeError实例时,父类的构造函数也会被调用。

这些消息是异常的不同参数。

看起来自定义错误是将任何附加参数捆绑到一个元组中。

请参见下面的示例:

        class CustomError(Exception):
            """
            Abstract Base class for all exceptions raised in this ecosystem.

            """
            def __init__(self, message, base_message, *args):
                """
                :param message:
                    Message to be displayed to user.

                :param base_message:
                    Message to be passed to base class.

                :param args:
                    Arguments to be passed to CustomError object.

                """
                super(CustomError, self).__init__(message, base_message, args)

        try:
            raise Exception('m1','m2',1,2,3)
        except Exception as e:
            print (e.args) #('m1', 'm2', 1, 2, 3)

        try:
            raise CustomError('m1','m2',1,2,3)
        except CustomError as c:
            print (c.args) #('m1', 'm2', ([1, 2, 3],))