I don't even like Python (Ruby guy myself) but the various stuff Peter Norvig has done (typically in Python) for demonstrating coding problem solutions. I think

I don't even like Python (Ruby guy myself) but the various stuff Peter Norvig has done (typically in Python) for demonstrating coding problem solutions. I think you benefit the most if you try doing the problem yourself (like the Advent of Code series), and then compare your solution to his. What I've often found is that Peter is just great at isolating the minimum required model/data structure. More often than not, when I notice his solution has half the code of mine, it's because I used the wrong model.