Waitress
Waitress is a production-quality, pure-Python WSGI server for serving Python web applications. It is designed to be simple, reliable, and efficient, handling HTTP requests and responses while managing multiple concurrent connections. It is commonly used to deploy WSGI-compatible applications like those built with Flask, Django, or Pyramid in development and production environments.
Developers should use Waitress when they need a lightweight, easy-to-configure WSGI server for deploying Python web applications without the complexity of more feature-rich servers like Gunicorn or uWSGI. It is ideal for small to medium-sized projects, development environments, and scenarios where simplicity and minimal dependencies are prioritized, such as in containerized deployments or when serving static content alongside dynamic applications.