Python for AI Engineering· day 12 of 30
DAY 12Python

Dataclasses & When to Use OOP

Day 12 of Python for AI Engineering, completing Module 3. Use @dataclass to write classes that hold data with almost no boilerplate — free __init__, __repr__ and __eq__ — and learn the practical rule for when to reach for a class, a dataclass, a dict, or a plain function. You'll model an AI ChatMessage and Conversation.

Jun 22, 2026 11 min read2k words

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