python - “An Existing Connection was Forcibly Closed by the Remote Host”为什么？以及我该如何解决？

我正在尝试打开一个受身份验证保护的网站。我决定使用请求模块，它与基本网站(facebook是我的主要测试网站)一起使用时效果很好。但是，当我尝试在具有“更高级”身份验证的网站(例如，多个防火墙以及受密码保护的网站)上使用它时，出现以下错误:

Traceback (most recent call last):
  File "C:\Python27\Pre-SiDashboard\more_test.py", line 15, in <module>
    r = requests.get(url, proxies=proxies, auth=('user','pass'))
  File "C:\Python27\lib\site-packages\requests-2.3.0-py2.7.egg\requests\api.py", line 55, in get
    return request('get', url, **kwargs)
  File "C:\Python27\lib\site-packages\requests-2.3.0-py2.7.egg\requests\api.py", line 44, in request
    return session.request(method=method, url=url, **kwargs)
  File "C:\Python27\lib\site-packages\requests-2.3.0-py2.7.egg\requests\sessions.py", line 461, in request
    resp = self.send(prep, **send_kwargs)
  File "C:\Python27\lib\site-packages\requests-2.3.0-py2.7.egg\requests\sessions.py", line 567, in send
    r = adapter.send(request, **kwargs)
  File "C:\Python27\lib\site-packages\requests-2.3.0-py2.7.egg\requests\adapters.py", line 395, in send
    raise ProxyError(e)
ProxyError: ('Cannot connect to proxy.', error(10054, 'An existing connection was forcibly closed by the remote host'))

这是我的代码(隐藏了网站，代理和密码):

import requests
from requests.auth import HTTPBasicAuth
import getpass

proxies = {
    "http": "http://a_proxy.blah.blah.org",
    "https": "http://a_proxy.blah.blah.org",
    }

url = 'https://example.com/here/there/'

user = getpass.getuser()
password = getpass.getpass("password:")

r = requests.get(url, proxies=proxies, auth=('user','pass'))
#print r.text
print r.cookies

print r.status_code

另一个问题告诉我错误是什么，但我不知道如何解决...
感谢您的帮助:)

最佳答案

如果由于身份验证过程而出现问题，则应将用户名和密码传递给auth参数(假设凭据是用户的输入):

r = requests.get(url, proxies=proxies, auth=HTTPProxyAuth(user, password))