This book is a more advanced book on Python and dives more into the nitty-gritty of the language. It is about a lot of the core functionalities of Python and how they work. A lot of internal things, such as iterators, data objects and methods and functions, are discussed and analysed in detail.
I try to use lectures on YouTube as a form of podcast, where I can listen to the lecturer while doing other things. I think this system is very good when it comes to most of the historical philosophical and social sciences; sometimes, it works okay for economics as well. I have not tried too much to listen to technical, mathematical, or engineering lectures.