[wirthjason]

It’s not clear what is meant by “to better understand Python”. Better understand CPython, e.g. and you want to hack on the interpreter, or better understand how to write more creative/abstract/safe Python?

In my experience Python programmers can be divided into two groups, those who write Python and those who write Python frameworks, aka Python for other Python programmers.

The latter group is trying to create an abstraction that helps solve a problem in an elegant way. Often to do that a deep understand of the language is needed such as the use of descriptors, higher order functions, the Python object model, metaclasses.

One of the best books for this is “Fluent Python”. It’s also a good to browse around significant projects and understand how they work and what patterns are used, eg Django, Flask, etc.