Python Resources

Visualize Python code execution

http://www.pythontutor.com

Primarily tutorials

Google's Python class

Tutorials combined with coding practice

http://www.learnpython.org

Primarily coding practice

http://codingbat.com/python - basics
https://www.codingame.com - video game setting
https://www.codehunt.com - video game setting
https://www.codingame.com - video game setting, object-oriented
https://www.hackerrank.com - range of challenges, some tied to job openings