Advanced OOP Principles and Design Patterns (Python)

This repository contains a single comprehensive Python file advanced_oop_principles.py that demonstrates:

• Object-Oriented Programming principles (Abstraction, Encapsulation, Inheritance, Polymorphism, Association, Aggregation, Composition)
• Software design principles (SRP, OCP, LSP, ISP, etc.)
• Design patterns (Singleton, Factory, Builder, Adapter, Composite, Decorator, Proxy, Observer, Strategy, Command, State)
• Core Python best practices (typing, logging, unit tests, PEP8 compliance)

Running the examples

1. Create a virtual environment (recommended):

python -m venv .venv
.\.venv\Scripts\activate

2. Install requirements:

pip install -r requirements.txt

3. Run the main demo:

python advanced_oop_principles.py

4. Run tests:

pytest -q

Files

• advanced_oop_principles.py - Main educational file with examples.
• tests/test_advanced_oop.py - Small pytest suite covering a few key examples.
• requirements.txt - Minimal dependencies for running tests.

Notes

This project is intended as a teaching resource. The examples emphasize clarity and pedagogy over production readiness. Use for learning and adapt for real projects. "# pythonallsamples"