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E-commerce Website

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Abstract

E-commerce Website is a Python project that simulates an online store with product listings, shopping cart, and checkout functionality. It demonstrates web development, backend logic, and user interaction. This project is ideal for learning about web apps, databases, and business logic.

Prerequisites

  • Python 3.6 or above
  • Flask (pip install flaskpip install flask)
  • SQLite (built-in)

Before you Start

Install Python and Flask. Prepare a sample product database for testing.

Getting Started

  1. Create a folder named ecommerce-websiteecommerce-website.
  2. Create a file named ecommerce_website.pyecommerce_website.py.
  3. Copy the code below into your file.
⚙️ E-commerce Website
E-commerce Website
"""
E-commerce Website (Basic)
 
A Python application that simulates a basic e-commerce website.
Features include:
- Displaying a list of products.
- Adding products to a shopping cart.
- Calculating the total price.
"""
 
from flask import Flask, render_template, request, redirect, url_for
 
app = Flask(__name__)
 
# Sample product data
products = [
    {"id": 1, "name": "Laptop", "price": 800},
    {"id": 2, "name": "Smartphone", "price": 500},
    {"id": 3, "name": "Headphones", "price": 100},
    {"id": 4, "name": "Keyboard", "price": 50},
]
 
# Shopping cart
cart = []
 
@app.route('/')
def index():
    """Display the list of products."""
    return render_template('index.html', products=products)
 
@app.route('/add_to_cart/<int:product_id>')
def add_to_cart(product_id):
    """Add a product to the shopping cart."""
    product = next((p for p in products if p['id'] == product_id), None)
    if product:
        cart.append(product)
    return redirect(url_for('view_cart'))
 
@app.route('/cart')
def view_cart():
    """Display the shopping cart and total price."""
    total_price = sum(item['price'] for item in cart)
    return render_template('cart.html', cart=cart, total_price=total_price)
 
if __name__ == '__main__':
    app.run(debug=True)
E-commerce Website
"""
E-commerce Website (Basic)
 
A Python application that simulates a basic e-commerce website.
Features include:
- Displaying a list of products.
- Adding products to a shopping cart.
- Calculating the total price.
"""
 
from flask import Flask, render_template, request, redirect, url_for
 
app = Flask(__name__)
 
# Sample product data
products = [
    {"id": 1, "name": "Laptop", "price": 800},
    {"id": 2, "name": "Smartphone", "price": 500},
    {"id": 3, "name": "Headphones", "price": 100},
    {"id": 4, "name": "Keyboard", "price": 50},
]
 
# Shopping cart
cart = []
 
@app.route('/')
def index():
    """Display the list of products."""
    return render_template('index.html', products=products)
 
@app.route('/add_to_cart/<int:product_id>')
def add_to_cart(product_id):
    """Add a product to the shopping cart."""
    product = next((p for p in products if p['id'] == product_id), None)
    if product:
        cart.append(product)
    return redirect(url_for('view_cart'))
 
@app.route('/cart')
def view_cart():
    """Display the shopping cart and total price."""
    total_price = sum(item['price'] for item in cart)
    return render_template('cart.html', cart=cart, total_price=total_price)
 
if __name__ == '__main__':
    app.run(debug=True)
  1. Run the script: python ecommerce_website.pypython ecommerce_website.py

Explanation

Code Breakdown

  1. Import required modules.
from flask import Flask, render_template, request, redirect, url_for
import sqlite3
from flask import Flask, render_template, request, redirect, url_for
import sqlite3
  1. Set up Flask app and database.
app = Flask(__name__)
conn = sqlite3.connect('products.db')
cursor = conn.cursor()
app = Flask(__name__)
conn = sqlite3.connect('products.db')
cursor = conn.cursor()
  1. Define routes and logic.
@app.route('/')
def home():
    # Show product listings
    pass
 
@app.route('/cart')
def cart():
    # Show shopping cart
    pass
 
@app.route('/checkout')
def checkout():
    # Handle checkout
    pass
@app.route('/')
def home():
    # Show product listings
    pass
 
@app.route('/cart')
def cart():
    # Show shopping cart
    pass
 
@app.route('/checkout')
def checkout():
    # Handle checkout
    pass
  1. Run the app.
if __name__ == '__main__':
    app.run(debug=True)
if __name__ == '__main__':
    app.run(debug=True)

Features

  • Product listings
  • Shopping cart
  • Checkout functionality
  • Simple web interface
  • Easy to extend for more features

How It Works

  • Handles HTTP requests
  • Renders templates for pages
  • Stores products and cart in database

GUI Components

  • Home page: Lists products
  • Cart page: Shows selected items
  • Checkout page: Handles payment

Use Cases

  • Simulate online shopping
  • Learn web development
  • Build portfolio projects

Next Steps

You can enhance this project by:

  • Adding user authentication
  • Supporting payment gateways
  • Improving UI with CSS
  • Adding product search/filter
  • Deploying online

Enhanced Version Ideas

def add_payment_gateway():
    # Integrate with Stripe or PayPal
    pass
 
def add_user_login():
    # Require login for checkout
    pass
def add_payment_gateway():
    # Integrate with Stripe or PayPal
    pass
 
def add_user_login():
    # Require login for checkout
    pass

Troubleshooting Tips

  • Flask errors: Check installation
  • App not running: Check port and debug mode
  • Database errors: Check database setup

Conclusion

This project teaches Flask basics, database usage, and web app structure. Extend it for more features and production use.

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