Python is a very versatile language that is widely used in web development. There are several frameworks available for web development in Python, each with its own strengths:

1. Flask: A micro web framework that’s easy to pick up and start with, but also powerful and flexible. Flask is often a good choice for smaller web applications, APIs, and when you want to have more control over which components to use.

2. Django: A high-level web framework that includes almost everything you need to build a web application, from an ORM to handle databases, to authentication, to an admin interface. Django is a good choice when building large and complex applications.

3. FastAPI: A relatively new web framework designed for building APIs with Python 3.6+ type hints. It is fast, easy to use, and easy to learn. FastAPI is gaining popularity because of its speed and intuitive design.

Here’s a simple example of a Flask application:

In this example, we’re creating an instance of the Flask class and defining a route for the root URL (“/”). When someone visits this URL, the hello_world function gets called and the string ‘Hello, World!’ is returned, which is then displayed in the user’s browser.

To run this application, save it as a Python script (e.g., app.py), and run it using your Python interpreter. You can then visit http://localhost:5000/ in your web browser to see the result.

This is just scratching the surface, of course. Real-world web applications will have many more routes, deal with databases, handle user authentication, have more complex layouts, etc. To learn more, I recommend checking out the documentation for these frameworks, and consider following a tutorial or a course that focuses on web development with Python.