Python 请求和 OpenSSL - 超过 HTTPSConnectionPool 最大重试次数

Question

执行以下脚本时，我在 Ubuntu 14.04 中使用 python 请求库时遇到问题:

import requests
import json

payload = {'code':'TG-000000000000000000000000', 'client_secret':'X0000000000000000000000000000000', 'grant_type':'authorization_code', 'client_id':'1111111111111111', 'redirect_uri':'http://127.0.0.1:8000/mercadolibre/process_ml_response/'}
headers = {'content-type': 'application/x-www-form-urlencoded'}
requests.post("https://api.mercadolibre.com:443/oauth/token", data=payload, headers=headers)

我得到以下回溯

  File "<stdin>", line 1, in <module>
  File "/home/theuser/.virtualenvs/tumoto/local/lib/python2.7/site-packages/requests/api.py", line 88, in post
    return request('post', url, data=data, **kwargs)
  File "/home/theuser/.virtualenvs/tumoto/local/lib/python2.7/site-packages/requests/api.py", line 44, in request
    return session.request(method=method, url=url, **kwargs)
  File "/home/theuser/.virtualenvs/tumoto/local/lib/python2.7/site-packages/requests/sessions.py", line 456, in request
    resp = self.send(prep, **send_kwargs)
  File "/home/theuser/.virtualenvs/tumoto/local/lib/python2.7/site-packages/requests/sessions.py", line 559, in send
    r = adapter.send(request, **kwargs)
  File "/home/theuser/.virtualenvs/tumoto/local/lib/python2.7/site-packages/requests/adapters.py", line 375, in send
    raise ConnectionError(e, request=request)
requests.exceptions.ConnectionError: HTTPSConnectionPool(host='api.mercadolibre.com', port=443): Max retries exceeded with url: /oauth/token (Caused by <class 'socket.error'>: [Errno 104] Connection reset by peer)

如果我在 Ubuntu 13.10 中尝试相同的代码工作正常

我猜这个错误与 openssl (1.0.1f) 的版本有关，并请求 python 库

我尝试按照 using requests with TLS doesn't give SNI support 中的建议安装 pyOpenSSL、ndg-httpsclient 和 pyasn1，但没有用，在运行脚本之前也应用了 monkey 补丁，但也失败了

注意:当我使用 pyOpenSSL 时，我得到的新错误是:

request.exceptions.SSLError: [Errno bad handshake](104, 'ECONNRESET') 

谢谢你的建议

Answer 1

我发现了一个请求的分支，它可以很好地与 Ubuntu 14.04 的 OpenSSL 版本一起工作，https://github.com/joequery/requests-sslv3仅通过 pip 安装此 fork 并且 requests 再次运行良好