title: can't install difflib and urllib.parse on python 2.7
body: <p>I don't manage to install <code>difflib</code> and <code>urllib.parse</code> packages for <code>Python 2.7.10</code> on <code>Win7</code> machine.</p>
  
  <p>From cmd:</p>
  
  <blockquote>
    <p>C:\Python27\Scripts>pip install -U difflib Downloading/unpacking
    difflib<br>Could not find any downloads that satisfy the requirement
    difflib<br>Cleaning up... <br>No distributions at all found for difflib</p>
  </blockquote>
  
  <p>Any thoughts?</p>