2 Answers
+ 2
As with most apps and sites that include tutorials, they can cover mostly the basics and advanced subjects that many programming languages share, (such as conditionals, loops, I/O, OOP, regex, etc..) Afterwards its up to you: do you like working with sockets and servers, computer vision, machine learning, cloud computing, big data, game development.. They are their own subjects that you will have to find elsewhere to get a deeper understanding.
I wish you success in your future endeavors!
+ 2
Only the basics.
Take a look at www.python.org - looot of stuff!



