🏗️ Object-Oriented Programming (OOP)

Object-Oriented Programming is not just a coding style it is a way of thinking. Instead of writing programs as sequences of instructions, OOP lets you model the real world directly in code: objects that have properties and behaviors, interacting with each other.

This course teaches every OOP concept from first principles using Python, then applies them to real-world problems. You will understand not just *what* each concept is, but *why* it exists and *when* to use it. We cover classes, inheritance, polymorphism, encapsulation, abstract classes, composition, magic methods, design patterns, and the SOLID principles.

The expanded curriculum includes applied modules on Turning a domain model into classes, Object identity, equality, and mutability, Constructors and invariant enforcement, Instance, class, and static methods, Encapsulation through properties and validation. Lessons pair formal models with worked examples, diagrams or traces, failure analysis, practice questions, and references for independent verification.