title: Python pip says: pkg_resources.DistributionNotFound: pip==1.4.1
body: <p>I just did a clean install of Ubuntu 14.04 and also installed pycharm. Pycharm said setuptools and pip weren't installed and offered to install it. I simply clicked "Ÿes" and it seemed to install it. A bit after that I wanted to install Flask (which is awesome btw) using pip, so I did <code>sudo pip install flask</code>. To my surprise it said the following:</p>
  
  <pre><code>Traceback (most recent call last):
    File "/usr/local/bin/pip", line 5, in &lt;module&gt;
      from pkg_resources import load_entry_point
    File "build/bdist.linux-x86_64/egg/pkg_resources.py", line 2797, in &lt;module&gt;
  
    File "build/bdist.linux-x86_64/egg/pkg_resources.py", line 576, in resolve
      def resolve(self, requirements, env=None, installer=None,
  pkg_resources.DistributionNotFound: pip==1.4.1
  </code></pre>
  
  <p>So I simply tried the regular way: I downloaded get-pip.py and ran that, but that says: <code>Requirement already up-to-date: pip in /usr/local/lib/python2.7/dist-packages</code></p>
  
  <p>I found some other <a href="https://stackoverflow.com/questions/20282679/pkg-resources-distributionnotfound-at-pip-and-easy-install">similar</a> <a href="https://stackoverflow.com/questions/19400370/easy-install-and-pip-broke-pkg-resources-distributionnotfound-distribute-0-6">problems</a> here on SO, which suggested to look in <code>/usr/local/lib/python2.7/site-packages/</code>, but that folder is empty. </p>
  
  <p>Does anybody know what's wrong and how I can fix this? All tips are welcome!</p>