python 自定义异常

python2

#coding=utf-
class CustomError(Exception):
    def __init__(self,ErrorInfo):
        self.errorinfo=ErrorInfo

    def __str__(self):
        return self.errorinfo

if __name__ == '__main__':
    try:
        raise CustomError('客户异常')
    except CustomError as e:
        print(e)

python3 

#coding=utf-
class CustomError(Exception):
    def __init__(self,ErrorInfo):
        super().__init__(self) #初始化父类
        self.errorinfo=ErrorInfo

    def __str__(self):
        return self.errorinfo

if __name__ == '__main__':
    try:
        raise CustomError('客户异常')
    except CustomError as e:
        print(e)