Object-Oriented Programming in Python

Module 1: OOP Fundamentals in Python

⏳ 1 week

• Topics: Defining classes, creating objects, __init__, and instance vs. class attributes

• Hands-on: Build a BankAccount class with deposit/withdraw methods and property validation

Module 2: Inheritance & Polymorphism

⏳ 1 week

• Topics: Single vs. multiple inheritance, method overriding, super() usage

• Hands-on: Create a class hierarchy for Vehicle → Car, Truck demonstrating polymorphic start_engine()

Module 3: Encapsulation & Magic Methods

⏳ 1 week

• Topics: Private/protected attributes, getters/setters with @property, special methods (__str__, __eq__)

• Hands-on: Implement a Vector class supporting addition, equality checks, and string representation

Module 4: Composition & Aggregation

⏳ 1 week

• Topics: “Has-a” relationships, delegating behavior vs. inheritance

• Hands-on: Model a Library class that contains Book objects and supports search and checkout operations

Module 5: Design Patterns in Python

⏳ 1 week

• Topics: Factory, Singleton, Strategy, and Observer patterns in Pythonic style

• Hands-on: Implement a logging system using the Singleton pattern and a payment processor with Strategy

Module 6: Abstract Base Classes & Interfaces

⏳ 1 week

• Topics: abc module, defining abstract methods, ensuring interface compliance

• Hands-on: Define an Exporter ABC and create CSVExporter and JSONExporter implementations

Module 7: Testing & Best Practices

⏳ 1 week

• Topics: unittest for OOP code, mocking, test fixtures, SOLID principles

• Hands-on: Write unit tests for previously built classes, enforce single-responsibility

Module 8: Capstone Project

⏳ 1 week

• Topics: End-to-end OOP application design, code reviews, refactoring

• Hands-on: Build a simple inventory management system with products, orders, and user roles, applying all learned concepts

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