Learn Python free from zero: run Python 3 in your browser (great on Chromebooks) with auto-graded challenges, Parsons puzzles, and 5 practice finals (1 free).
Common questions
Is Intro to Python free?
Yes. Every lesson and coding challenge in Intro to Python is free with a free account, and creating that account costs $0 — no credit card, and there is no paid registration tier. An optional $9.99 one-time membership unlocks practice finals 2 through 5, the full question banks, and AI feedback — the lessons and the first practice final stay free.
Do I need any programming experience?
No. Intro to Python starts from zero — your first program — and builds one concept at a time with auto-graded challenges and Parsons puzzles. No prior experience is assumed.
Do I need to install Python? Does it work on Chromebooks?
No install needed. Python 3 runs entirely in your browser, so the course works on Chromebooks, school laptops, and any device with a modern browser — no downloads, no Linux mode, and no admin rights.
How are the lessons graded?
In-lesson coding challenges run hidden test cases and show you exactly which pass. Parsons puzzles let you build correct programs by ordering scrambled lines, and MCQ and quiz practice give instant explanations.
What can I do after Intro to Python?
Intro to Python builds the algorithm and abstraction vocabulary that transfers directly to AP CSP, and it pairs well with CS Foundations or Web Design. You can also keep practicing in the free CS++ Python IDE.