def get(self, media_id):
def _processor(res):<EOL><INDENT>if isinstance(res, dict):<EOL><INDENT>if '<STR_LIT>' in res:<EOL><INDENT>return res['<STR_LIT>']<EOL><DEDENT><DEDENT>return res<EOL><DEDENT>res = self._post(<EOL>'<STR_LIT>',<EOL>data={<EOL>'<STR_LIT>': media_id<EOL>},<EOL>result_processor=_processor<EOL>)<EOL>return res<EOL>
获取永久素材
详情请参考
http://mp.weixin.qq.com/wiki/4/b3546879f07623cb30df9ca0e420a5d0.html

:param media_id: 素材的 media_id
:return: 图文素材返回图文列表，其它类型为素材的内容