What is best way to learn Python for advanced developer?

[guirec.corbel at gmail.com]

Hello,

I am a Ruby developer and I want to program in Python. I know how to do simple things like create classes, methods, variables and all the basics. I want to know more. I want to know what is the Python philosophy, how to test, how to create maintenable software, etc.

I'm looking for online courses and any ressources I can have on the subject.

Can you help me?

Thanks,
Guirec Corbel.