2 ответов
+ 1
You have other ways, as w3schools, where you can to take tests too and learn the theory. In this web, you can see a huge list of commands to Python (and other languages). Even you can get a certification.
Even there are cheap courses in Coursera, Udemy,...
However, I prefer to learn the basics in SL, and read some PDF manuals to understand other viewpoints. And then, I come back to SL to tests commands in Playground.
I don't share manuals that I'm reading because are in Spanish haha, but you can search other in Google and compare them. By this way, you will learn things that other authors or SL didn't teach us.
+ 3
Personally, I’m learning here, but I’m looking for more information in Google