Python Web Development: Projects and Applications

Key Projects

• Personal Blog using Django: Create a fully functional personal blog with user authentication, post creation, and comments using Django.
• To-Do List Application with Flask: Build a simple to-do list application with Flask where users can add, complete, and delete tasks.
• RESTful API with Flask and SQLAlchemy: Develop a RESTful API that manages a database of items with CRUD operations using Flask and SQLAlchemy.
• Weather App using Django: Create a weather forecasting application that pulls data from a public API and displays it to users.

Python Code Examples

Personal Blog Example with Django

        
            from django.db import models
            from django.contrib.auth.models import User

            class Post(models.Model):
                title = models.CharField(max_length=100)
                content = models.TextField()
                created_at = models.DateTimeField(auto_now_add=True)
                author = models.ForeignKey(User, on_delete=models.CASCADE)

                def __str__(self):
                    return self.title
        
    

To-Do List Application with Flask

        
            from flask import Flask, request, jsonify

            app = Flask(__name__)
            tasks = []

            @app.route('/tasks', methods=['GET', 'POST'])
            def manage_tasks():
                if request.method == 'POST':
                    task = request.json
                    tasks.append(task)
                    return jsonify(task), 201
                return jsonify(tasks)

            if __name__ == '__main__':
                app.run(debug=True)
        
    

RESTful API with Flask

        
            from flask import Flask, jsonify, request
            from flask_sqlalchemy import SQLAlchemy

            app = Flask(__name__)
            app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///items.db'
            db = SQLAlchemy(app)

            class Item(db.Model):
                id = db.Column(db.Integer, primary_key=True)
                name = db.Column(db.String(80), nullable=False)

            @app.route('/items', methods=['GET', 'POST'])
            def handle_items():
                if request.method == 'POST':
                    new_item = Item(name=request.json['name'])
                    db.session.add(new_item)
                    db.session.commit()
                    return jsonify(new_item.id), 201
                items = Item.query.all()
                return jsonify([item.name for item in items])

            if __name__ == '__main__':
                app.run(debug=True)
        
    

Real-World Applications

Python web development is utilized in various real-world applications across multiple industries. Here are a few notable uses:

• E-Commerce Sites: Platforms like Shopify and Zalando leverage Django for scalability and security.
• Social Media: Sites like Instagram harness Django for rapid feature development and high traffic handling.
• Data Analytics Platforms: Flask is often used to create data visualization tools that aid businesses in making data-driven decisions.
• Content Management Systems: Custom CMS solutions built with Flask or Django provide tailored content delivery and management capabilities.