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What is a metaclass?

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01

Understand the problem

Explain metaclasses.

metaclass
02

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A metaclass is the class of a class — it controls class creation (default is type). Overriding __new__/__init__ on a metaclass lets you customize or validate classes at definition time. Used by frameworks (ORMs, ABCs); rarely needed in app code.

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Classified // press E to declassify

04

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PYA metaclass that auto-registers every subclass
Practice
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Dossier 92 of 120 decoded in the Python track. One more won't hurt.

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