Has anyone come across a problem book for learning Python?

Question

Python

There was a need to learn Python. To consolidate the material and warm up the brain, there are not enough interesting tasks with an emphasis on the features of python.
In the literature on which I study python, the level of tasks is too primitive. And I would like brains to boil. But with all this, the tasks would somehow be ranked by topic.
Has anyone come across similar literature or resources on the net?

Answer 1

codeeval , checkio

Answer 2

Well go to codeacademy