我刚刚写了一个简单的python demo，同时遇到了一个令人困惑的问题。
import requests
print(requests.get('http://www.sina.com.cn/'))
我知道正确的结果是返回 Response [200]。但是在我的 WIN10 x64 中，它返回以下错误，我想我的计算机可能出现了一些问题。
Traceback (most recent call last):
File "C:\Users\CJY\Desktop\Python_Demo\web.py", line 2, in <module>
print(requests.get('http://www.sina.com.cn/'))
File "D:\python3.6.1\lib\site-packages\requests\api.py", line 72, in get
return request('get', url, params=params, **kwargs)
File "D:\python3.6.1\lib\site-packages\requests\api.py", line 58, in request
return session.request(method=method, url=url, **kwargs)
File "D:\python3.6.1\lib\site-packages\requests\sessions.py", line 518, in request
resp = self.send(prep, **send_kwargs)
File "D:\python3.6.1\lib\site-packages\requests\sessions.py", line 639, in send
r = adapter.send(request, **kwargs)
File "D:\python3.6.1\lib\site-packages\requests\adapters.py", line 403, in send
conn = self.get_connection(request.url, proxies)
File "D:\python3.6.1\lib\site-packages\requests\adapters.py", line 302, in get_connection
conn = proxy_manager.connection_from_url(url)
File "D:\python3.6.1\lib\site-packages\requests\packages\urllib3\poolmanager.py", line 279, in connection_from_url
pool_kwargs=pool_kwargs)
File "D:\python3.6.1\lib\site-packages\requests\packages\urllib3\poolmanager.py", line 408, in connection_from_host
self.proxy.host, self.proxy.port, self.proxy.scheme, pool_kwargs=pool_kwargs)
File "D:\python3.6.1\lib\site-packages\requests\packages\urllib3\poolmanager.py", line 218, in connection_from_host
raise LocationValueError("No host specified.")
requests.packages.urllib3.exceptions.LocationValueError: No host specified.
[Finished in 0.2s]
请帮我！
