title: How to add to the PYTHONPATH in Windows, so it finds my modules/packages?
body: <p>I have a directory which hosts all of my Django apps (<code>C:\My_Projects</code>). I want to add this directory to my <code>PYTHONPATH</code> so I can call the apps directly.</p>
  
  <p>I tried adding <code>C:\My_Projects\;</code> to my Windows <code>Path</code> variable from the Windows GUI (<code>My Computer &gt; Properties &gt; Advanced System Settings &gt; Environment Variables</code>). But it still doesn't read the coltrane module and generates this error:</p>
  
  <blockquote>
    <p>Error: No module named coltrane</p>
  </blockquote>