Cheat sheets

>One page per module

124 quick-reference rows you can keep open while you write code.

Python Basics — cheat sheet

Use these building blocks to write small Python programs that are clear and easy to test.

Use expressions, decisions, and loops to make your program calculate and choose what happens next.

Choose the right collection to organize values, text, and named information in your programs.

Put repeated work in named functions, then use built-in tools and modules to keep code organized.

Handle problems safely, save text, and use classes to group related data and behavior.

Reuse these small-program patterns to turn an idea into a working project one clear step at a time.