Homework Description (Factory pattern & SOLID principles)

Overview

This assignment consists of two tasks that focus on applying design patterns and principles in Python programming. The goal is to enhance your understanding of object-oriented programming concepts, specifically the Factory Pattern and SOLID principles.

Tasks

Task 1: Factory Pattern

• Implement a system for creating vehicles using the Factory Pattern.
• Create an abstract base class Vehicle with a method start_engine().
• Modify the existing Car and Motorcycle classes to inherit from Vehicle.
• Create an abstract class VehicleFactory with methods create_car() and create_motorcycle().
• Implement two factory classes: USVehicleFactory and EUVehicleFactory to create vehicles with regional specifications.
• Update the initial code to utilize these factories for vehicle creation.

Task 2: SOLID Principles

• Refactor a library management program that allows adding, removing, and displaying books.
• Create a Book class to adhere to the Single Responsibility Principle (SRP).
• Ensure the Library class is extendable without modification to comply with the Open/Closed Principle (OCP).
• Implement the Liskov Substitution Principle (LSP) by ensuring any class inheriting from LibraryInterface can replace the Library class seamlessly.
• Use the LibraryInterface to specify necessary methods for interaction, following the Interface Segregation Principle (ISP).
• Ensure higher-level classes depend on abstractions, adhering to the Dependency Inversion Principle (DIP).

Screenshots of the Outcome

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