Learn Python

Learn to turn clear ideas into useful programs.

Start learning 6 lessons · first lesson about 12 min · free · no account needed
About this track

Start with your first Python script, then practice variables, decisions, loops, functions and collections. Each lesson includes a quick check, a quiz and a runnable exercise. Python exercises run in your browser with a WebAssembly Python runtime.

Before you start
  • No programming experience needed.
  • A modern browser with JavaScript enabled.
  • The first Python runtime load downloads several megabytes from the Pyodide CDN; later runs use the browser cache.

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  1. Unit 1 · 0/2 lessons

    Getting started

    Run a script and work with basic values. Badge: First script

    1. 0x001Run your first Python programPrint text, read output and recognize how Python runs a script. 12 min 0/1 exercises solved 12 min 0/1 exercises solved
    2. 0x102Work with values and variablesName values, use common types and combine simple expressions. 12 min 0/1 exercises solved 12 min 0/1 exercises solved
  2. Unit 2 · 0/2 lessons

    Decisions and repetition

    Choose a path and repeat useful work. Badge: Flow builder

    1. 0x203Make decisions with ifChoose which statements run with conditions and indentation. 12 min 0/1 exercises solved 12 min 0/1 exercises solved
    2. 0x304Repeat work with loopsUse for and while loops to process repeated steps. 12 min 0/1 exercises solved 12 min 0/1 exercises solved
  3. Unit 3 · 0/2 lessons

    Functions and data

    Reuse logic and organize values in collections. Badge: Data wrangler

    1. 0x405Write reusable functionsDefine functions, pass arguments and return results. 12 min 0/1 exercises solved 12 min 0/1 exercises solved
    2. 0x506Store and process collectionsUse lists and dictionaries to organize related data. 12 min 0/1 exercises solved 12 min 0/1 exercises solved