This post explains what a Python module is and how to use it to drastically extend the capabiltiies of your code. Plus: how to make your own!

Interpreting math expressions is one of those things that seems simple until you get into it. The first problem is correctly lexing the input — a term that means splitting into tokens.

The solution he came up with is to use the Python interpreter as a binary math aide. We knew that you could use Python to convert between decimal, hexadecimal, and binary.