title: Can't use CNTLM to connect to pip
body: <p>I'm trying to use Pip behind a proxy server which requires authentication. I've installed cntlm and filled out the hashed passwords. When I run this:</p>
  
  <pre><code>    cntlm -c cntlm.ini -I -M http://www.google.co.uk
  </code></pre>
  
  <p>I enter my password and then get this as a result:</p>
  
  <pre><code>   Config profile  1/4... Auth not required (HTTP code: 200)
     Config profile  2/4... Auth not required (HTTP code: 200)
     Config profile  3/4... Auth not required (HTTP code: 200)
     Config profile  4/4... Auth not required (HTTP code: 200)
  
     Your proxy is open, you don't need another proxy. 
  </code></pre>
  
  <p>However, pip doesn't work, still giving me a timeout. Knowing that I don't need another proxy is all fine and dandy, but pip still times out. Port 3128 is working because I can telnet on that port and it shows as listening under netstat. So what should I do from here?</p>
  
  <p>Thank you.</p>