Files and paths
Reading and writing text, closing what you open, and treating a path as a path rather than as a string you glued together with slashes.
We mark it against a checklist you can read first
What counts as knowing this
Read and write a file safely, with paths that work on someone else's machine
A check for this one skill
Up to 2 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
Helpful, but not required
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.
Start this path