title: Calling Python from Objective-C
body: <p>I'm developing a Python/ObjC application and I need to call some methods in my Python classes from ObjC.
  I've tried several stuffs with no success. </p>
  
  <ul>
  <li>How can I call a Python method from Objective-C?</li>
  <li>My Python classes are being instantiated in Interface Builder. How can I call a method from that instance?</li>
  </ul>