title: Generating a 3D CAPTCHA [pic]
body: <p>I would like to write a Python script that would generate a 3D <a href="http://en.wikipedia.org/wiki/CAPTCHA" rel="nofollow noreferrer">CAPTCHA</a> like this one:
  <img src="https://i.stack.imgur.com/60KlL.png" alt="teabag captcha"></p>
  
  <p>Which graphics libraries can I use?</p>
  
  <p>Source: <a href="http://ocr-research.org.ua/teabag.html" rel="nofollow noreferrer">ocr-research.org.ua</a></p>