The quicksort algorithm coded live in Python

Watch me code the quicksort algorithm live in Python, explaining it as I go along. This is my first attempt at an algorithm video, and I'd appreciate suggestions on improving my next attempt. I'm coding in Python because it's a popular language that has a command line interpreter that involves no complicated setup steps. I chose the quicksort algorithm to start with because it is ubiquitous and has a fairly simple implementation. The comic strip in the beginning of the video can be found here: https://xkcd.com/1185/