Phase 5 — The Python Object Model

Chapters 44, 45, 46, 47: OOP

Your role: Modeler — "I can design systems for AI to implement"

Phase 5 teaches object-oriented programming — classes, inheritance, composition, and advanced patterns — after you already know how to test and debug. Every OOP concept you learn, you immediately test and verify. You design class interfaces with types and tests; AI implements the behavior. By the end, you can model a real domain (like SmartNotes) as a system of interacting objects that AI builds to your specification.

#	Chapter	Key Focus
44	Classes and Instances	Objects as building blocks
45	Inheritance, Composition, and Design	Structuring systems of objects
46	Special Methods and the Python Object Model	How Python objects really work
47	Decorators, Properties, and Advanced Patterns	Power tools for clean design