('WechatSogouAPI get img', <Response [403]>)加上代理也一样报，如何解决403？

('WechatSogouAPI get error', <Response [403]>)
('WechatSogouAPI get img', <Response [403]>)
('WechatSogouAPI get error', <Response [403]>)
unlock[http://weixin.sogou.com/antispider/thank.php] failed: <html>
<head><title>403 Forbidden</title></head>
<body bgcolor="white">
<center><h1>403 Forbidden</h1></center>
<hr><center>nginx</center>
</body>
</html>