Gunicorn, or Green Unicorn, is a Python Web Server Gateway Interface (WSGI) HTTP server. It is a pre-fork worker model, which means it forks multiple worker processes to handle incoming requests. Gunicorn is often used to serve Python web applications behind a reverse proxy, such as Nginx or Apache, providing a reliable and efficient way to deploy web applications. In this article, we will discuss the basics of Gunicorn, how to install and configure it, and how to use it to serve a Python web application.
Prerequisites
To follow along with this tutorial, you should have:
- Basic knowledge of Python and web applications.
- Python 3.6 or higher installed on your system.
- A Python web application to serve (we will use a simple Flask application as an example).
Installation
You can install Gunicorn using pip, the Python package manager. Run the following command to install Gunicorn:
pip install gunicornMake sure to activate your virtual environment if you are using one before running the command.
