* Already know a language - https://learnxinyminutes.com/docs/python3/ and https://docs.python.org/3/tutorial/
* In depth - Fluent Python (http://shop.oreilly.com/product/0636920032519.do)
* Pythonic way - https://gist.github.com/JeffPaine/6213790 and http://www.effectivepython.com/
* Practice - https://www.codewars.com/
For more links, see a list I made(https://github.com/learnbyexample/scripting_course/blob/mast...)