🛒 Online Shopping Cart (Python OOP Project)

A simple console-based shopping cart system using Object-Oriented Programming in Python. You can browse, add, remove, and update products with JSON-based file persistence.

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✨ Features

• View physical and digital products
• Add, update, and remove items from cart
• View cart summary with total price
• Auto-save and load cart using JSON
• Clean beginner-friendly OOP design

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🧠 OOP Concepts Used

• Inheritance – Product subclasses for physical/digital items
• Encapsulation – Uses private attributes
• Polymorphism – Custom __str__() for products
• Abstraction – Logic hidden in methods
• Magic Methods – __init__, __str__, etc.

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🚀 How to Run

1. Make sure Python 3.x is installed.
2. Run the script:

python shopping_cart.py

3. Follow the menu in terminal.

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📁 Project Files

• shopping_cart.py – Main Python script
• cart_data.json – Cart persistence (auto-generated)
• README.md – Project overview

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🙋‍♀️ Why Try This?

• Practice real-world OOP in Python
• Understand file handling with JSON
• Great for DSA + Python beginners

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👤 Author

Urbi Mangal – Made with ❤️ in Python.