Raising and handling exceptions
Catching the exception you can do something about, letting the rest travel, and never writing a bare except that swallows the bug you are about to spend an afternoon looking for.
We mark it against a checklist you can read first
What counts as knowing this
Handle a specific failure without hiding the failures you did not anticipate
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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