Welcome to this tutorial on Python web development! In this guide, we'll cover the basics of building web applications using Python. Whether you're a beginner or looking to expand your skills, this tutorial will help you get started.

Table of Contents

Introduction

Python is a versatile programming language that's widely used for web development. Its simplicity and readability make it an excellent choice for beginners and experienced developers alike. With Python, you can create a wide range of web applications, from simple websites to complex web services.

Choosing a Web Framework

There are several web frameworks available for Python, each with its own set of features and advantages. Some popular ones include:

  • Django: A high-level framework that encourages rapid development and clean, pragmatic design.
  • Flask: A micro-framework that's easy to get started with and is great for small to medium-sized projects.
  • Pyramid: A flexible framework that's suitable for both small and large applications.

For this tutorial, we'll use Flask, as it's a lightweight and easy-to-use framework.

Setting Up Your Development Environment

Before you start building your web application, you need to set up your development environment. Here's a step-by-step guide:

  1. Install Python on your system.
  2. Install Flask using pip: pip install flask
  3. Create a new directory for your project and navigate into it.
  4. Create a new Python file (e.g., app.py) and set up a basic Flask application.

Building a Simple Web Application

Now that you have your development environment set up, let's build a simple web application. We'll create a basic "Hello, World!" application.

from flask import Flask

app = Flask(__name__)

@app.route('/')
def hello():
    return 'Hello, World!'

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

Save this code in your app.py file and run it using the command python app.py. Your web server will start, and you can access it at http://127.0.0.1:5000/. You should see the "Hello, World!" message displayed.

Further Reading

If you're interested in learning more about Python web development, here are some resources you can explore:

By following this tutorial, you should now have a basic understanding of Python web development. Happy coding!