Loops and iteration
Iterating over a thing rather than over its indices, and the tools that make it read well — enumerate, zip, and knowing when a while loop is actually the right shape.
We mark it against a checklist you can read first
What counts as knowing this
Iterate over a collection idiomatically, including in parallel with another
A check for this one skill
Up to 3 questions on this skill alone, marked against the bar beside this. It stops as soon as the answer is clear. No account, and your answers are not kept.
You'll need these first
What it unlocks
Start on Python Fundamentals
Every skill above, ordered by what depends on what, with the projects above that as the evidence you actually did it. We work out where you already are first, so the path skips what you can do.
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