Learn Programming Lessons
The basics of Python
Seven short lessons. Each one explains an idea, lets you play with real code in the browser, and ends with an exercise. Do them in order.
📦 1. Variables
Give names to values so you can use them again.
🔒 2. Constants
Values that should never change.
🏷️ 3. Types
Text, numbers, and true/false, and why it matters.
🧮 4. Operators & decisions
Math, comparisons, and if/else.
🔁 5. Loops
Do something many times without repeating yourself.
🧰 6. Functions
Make your own commands.
🗂️ 7. Project structure
How a modern Python project is organized.
Your edits in the code blocks are remembered in this browser, so you can come back later.