Build something real

Lessons teach you the bricks. Projects make you lay them, and the scaffolding fades a little more with every tier.

Guided

We sketch the rooms, you build the house. Step by step, but every line is yours.

Python+200 XP

Sky House

A front door that greets every guest by name.

Locked · first finish Lists

Python+220 XP

Cloud Diary

Search a diary for every entry that mentions a word.

Locked · first finish Sky House, String methods

A goal and a test suite. The plan, the code and the bugs are all yours.

Python+340 XP

Weather Window

Turn a week of raw forecasts into a tidy summary.

Locked · first finish Dictionaries, Cloud Diary

Python+360 XP

Packing Planner

Fill a weight-limited bag with the most useful gear first.

Locked · first finish Lambda & sorting, Weather Window

Python+380 XP

Log Lens

Read a server log and report what went wrong, and where.

Locked · first finish Regex, Hash map patterns

The big one: a whole track of skills in one program.

Python+600 XP

Dream API

The request handler at the heart of a tiny web service.

Locked · first finish Weather Window, JSON

Python+650 XP

Sky Router

Find the shortest flight through a grid of storm clouds.

Locked · first finish Stacks & queues, Dream API