from abc import ABCMeta, abstractmethod

#抽象类

class Headers(object):

    __metaclass__ = ABCMeta

    def __init__(self):

        self.headers = ''

    @abstractmethod

    def _getBaiduHeaders(self):pass

    def __str__(self):

        return str(self.headers)

    def __repr__(self):

        return repr(self.headers)

#实现类

class BaiduHeaders(Headers):

    def __init__(self, url, username, password):

        self.url = url

        self.headers = self._getBaiduHeaders(username, password)

    def _getBaiduHeaders(self, username, password):

        client = GLOBAL_SUDS_CLIENT.Client(self.url)

        headers = client.factory.create('ns0:AuthHeader')

        headers.username = username

        headers.password = password

        headers.token = _baidu_headers['token']

        return headers