title: Cannot install tweepy on Rasbian with sudo pip install
body: <p>I am trying to make a Twitter app with my Pi but when I try the command</p>
  
  <pre><code>sudo pip install tweepy
  </code></pre>
  
  <p>I get greeted by the following error:</p>
  
  <pre><code>AttributeError: 'NoneType' object has no attribute 'skip_requirements_regex'
  ----------------------------------------
  Command python setup.py egg_info failed with error code 1 in /home/pi/build/tweepy
  </code></pre>
  
  <p>Any suggestions? This also happens if I try to install directly from GitHub </p>