title: How do I use installed packages in PyCharm?
body: <p>In <em>PyCharm</em>, I've added the Python environment <code>/usr/bin/python</code>. However,</p>
  
  <pre><code>from gnuradio import gr
  </code></pre>
  
  <p>fails as an <em>undefined reference</em>. However, it works fine in the Python interpreter from the command line. </p>
  
  <p>GNURadio works fine with python outside of Pycharm. Everything is installed and configured how I want it.</p>
  
  <p>Gnuradio is located at <code>/usr/local/lib/python2.7/site-packages/gnuradio</code></p>
  
  <p>Also:</p>
  
  <blockquote>
    <p>PYTHONPATH=/usr/local/lib/python2.7/site-packages:/usr/local/lib/python2.7/site-packages/gnuradio</p>
  </blockquote>