How can I practice python to expertise it's basic knowledge?

You can practice a lot with basics and also with the advanced topics of python or any other languages from w3schools,freecodecamp and codeacademy.

Explore python module for game like turtle and pygame or tkinter for graphics ,If you are very pressed there are lot a good app for python quizes choose whatever you like or as many as you want and enjoy coding..

First try to solve all code coach problems here.. (Before that complete your course..) Then try hacker rank, freecodecamp,... After Reply for more... Happy coding..