What do you need to know to write the backend of applications/games?

Question

Python

What do you need to write the server side? For myself, I’ve settled on the python language for the time being, because I know it, worked with sockets, databases, TCP / IP, made packets, worked with encodings, but I would like to know what is needed, what is useful, how and what is better to do, I understand myself that practice is needed and now I'm thinking of finding someone who also wants to practice and write some kind of application or game.

Answer 1

Well, as an option, you can start with this .
Skip the intro of course.