Python roadmap

Build your skills one exercise at a time. Choose a sequence and follow it in order, or return to your next unsolved problem. Prefer lessons alongside your practice? Explore the guided tracks.

From Everyday Python to Production Code

All fifteen Python tracks in order, from type hints and the standard library to tests, concurrency, packaging and safe handling of outside data.

223 problems

Start sequence

Up next: Fix Your First mypy Errors

1 Fix Your First mypy Errors Easy 2 Find the Redundant Flags in a mypy Command Easy 3 Placement 1/6: Make a Generic Class Read-Only Medium 4 Placement 2/6: Match Objects by the Methods They Have Easy 5 Placement 3/6: Turn Parse Errors into Your Own Exception Medium 6 Placement 4/6: Handle a Generator You Can Read Only Once Easy 7 Placement 5/6: Cancel an asyncio Task at Each Stage Hard 8 Placement 6/6: Find Every Module in an Import Cycle Medium 9 Check a Value Before You Use It Easy 10 Narrow a Union Without Treating Zero as Missing Medium

Showing 10 of 223 exercises