class HostsRetrieveError(Exception):

    def __init__(self, *args, **kwargs):
        if 'code' not in kwargs and 'reason' not in kwargs:
            kwargs['code'] = 10000
            kwargs['reason'] = '未知的异常错误,请手动处理'
        for key, val in kwargs.items():
            setattr(self, key, val)
        super(HostsRetrieveError, self).__init__(*args, kwargs)


class ValidatorError(HostsRetrieveError):

    def __init__(self, reason, code=10001):
        super(ValidatorError, self).__init__(code=code, reason=reason)


class TaskError(HostsRetrieveError):

    def __init__(self, reason, code=10002):
        super(TaskError, self).__init__(code=code, reason=reason)