Python for A-Level CS

Every lesson runs in your browser — write real code, press Run, and the tasks check themselves. Free, no account needed, with translated notes paired with English.

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Lessons in this course

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1. Nested loops & 2-D lists 01 · 4 required tasks · ★★★ Video
2. Text files 02 · 3 required tasks · ★★★ Video
3. Exceptions 03 · 3 required tasks · ★★★ Video
4. Stacks 04 · 3 required tasks · ★★★★ Video
5. Queues 05 · 4 required tasks · ★★★★ Video
6. Linked lists 06 · 3 required tasks · ★★★★ Video
7. Searching 07 · 3 required tasks · ★★★ Video
8. Sorting 08 · 3 required tasks · ★★★★ Video
9. Recursion 09 · 3 required tasks · ★★★★ Video
10. Classes & objects 10 · 3 required tasks · ★★★ Video
11. Inheritance & encapsulation 11 · 4 required tasks · ★★★★ Video
12. Programming paradigms 12 · 3 required tasks · ★★★ Video
13. Hash tables 13 · 3 required tasks · ★★★★ Video
14. Binary search trees 14 · 3 required tasks · ★★★★★ Video
15. Graphs 15 · 3 required tasks · ★★★★★ Video

Language reference

/know/reference/python