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Lesson 22 — Metaclasses (expert)
Classes that build classes
A metaclass customizes how classes are created: its new receives the class namespace (ns, a dict of attributes) before the class exists, so you can add to it.
Why it matters: frameworks like Django use them to wire models automatically.
Make the metaclass add created = True to every class it builds, then print Model.created.
Run your code — when the output matches the task, you will see a green check. Then mark the lesson complete.
Test your knowledgeA quick 3-question quiz on this lesson — instant feedback.
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