What is the best way to learn python deeply? What resources is good?

Question

I'm not beginner and I'm not professional.

Answer 1

https://www.sololearn.com/Discuss/821134/?ref=app

And to give yourself a challenge:

https://www.sololearn.com/Discuss/437973/?ref=app

Answer 2

Buy a book which have more page than others. Generally, much longer book means much knowledge.