Python requests.exceptions.ConnectionError:（'；连接中止。'；，错误（104，'；对等方重置连接'；）

我想爬网网页，但输入了以下错误：

Traceback (most recent call last):
  File "test.py", line 17, in <module>
    r = requests.get("http://www.freeproxylists.net/zh/?c=&pt=&pr=HTTPS&a%5B%5D=1&a%5B%5D=2&u=60", headers=headers)
  File "/usr/local/lib/python2.7/site-packages/requests/api.py", line 69, in get
    return request('get', url, params=params, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/requests/api.py", line 50, in request
    response = session.request(method=method, url=url, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/requests/sessions.py", line 468, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/lib/python2.7/site-packages/requests/sessions.py", line 576, in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/lib/python2.7/site-packages/requests/adapters.py", line 412, in send
    raise ConnectionError(err, request=request)
requests.exceptions.ConnectionError: ('Connection aborted.', error(104, 'Connection reset by peer'))

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为了便于记录，您可以添加以下详细信息，因为您目前没有在我的机器上引发此异常<代码>请求。\uuuuu版本=2.9.1，python版本==3.4.3

    headers = { 
    "Accept": "Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8",
    "Host": "www.freeproxylists.net",
    "Referer": "http://www.freeproxylists.net",
    "Upgrade-Insecure-Requests": 1,
    "User-Agent" : "Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/47.0.2526.106 Safari/537.36",
    "Accept-Encoding": "gzip, deflate, sdch",
    "Accept-Language": "zh-CN,zh;q=0.8,en;q=0.6"
}
r = requests.get("http://www.freeproxylists.net/zh/?c=&pt=&pr=HTTPS&a%5B%5D=1&a%5B%5D=2&u=60", headers=headers)