title: How to get pip proxy to work with company certificate-chain?
body: <p>I am trying to get pip to work behind my work's proxy network. I have the credentials for the proxy and I have the certificate-chain files, but no matter what I do I cannot get it to stop throwing an SSL error: </p>
  
  <pre><code>Could not fetch URL https://pypi.python.org/simple/pyinstaller/: There was a problem confirming the
  ssl certificate: [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed (_ssl.c:645) - skipping
  </code></pre>
  
  <p>I've seen that pip.ini is supposed to exist in %APPDATA% but it isn't present, not even a pip folder exists there. Furthermore, people who were missing the file were able to create it and have it work that way. I tried this too and it did not work for me. I have even tried specifically specifying the cert in the <code>pip install</code> statement itself with <code>--cert</code> but with no luck.</p>
  
  <p>What do I need to do?</p>