Learnpython.org exercises
From CommunityData
LearnPython.org provides a series of self-guided tutorials for familiarizing yourself with basic Python concepts, syntax, and operations.
You can spend the afternoon session working through these lessons on your own if you want more practice.
If you would like to run through the lessons in Jupyter Notebooks rather than on LearnPython.org, you can download notebooks for each of the "Learn the Basics" lessons here and run them on your computer by unzipping the file, placing the .ipynb files on your desktop, and opening them in Jupyter!