Appendices

Reference material that doesn’t belong inside any single session — the kind of thing you’ll come back to over and over.

• Getting unstuck — the checklist for when your code isn’t doing what you want.
• Reading error messages — how to make sense of the red text Python gives you when something goes wrong.
• Glossary — every programming term we’ve used, defined briefly. Grows phase by phase.
• Keyboard shortcuts — what every key combination on the class machines does.
• Thonny reference — quick reference for the Python editor we use.
• Installing on your own computer — for setting up Python and the class tools at home.

Bookmark this page. Most of these appendices stay useful across multiple phases.