This is an awesome resource but the general Python section could use some work.

I am assuming that target audience are scientists with a modicum of programming knowledge.

The list and especially dictionary section is a bit bare.

In the optimization section have a discussion on when to use lists, dictionaries, tuples and sets. (for example the difference between "needle" in my_list vs "needle" in my_set)

When to use something from collections and when to use ndarray. (the short answer being - it depends)