Gunicorn

Gunicorn
Original author	Benoit Chesneau
Developer	Gunicorn Developers
Release	20 February 2010; 16 years ago (2010-02-20)
Stable release	26.2.2  / 6 September 2026; 52 days ago (6 September 2026)
Written in	Python
Operating system	Cross-platform
Type	Web server
License	MIT License
Website	gunicorn.org
Repository	github.com/benoitc/gunicorn

The Gunicorn "Green Unicorn" (pronounced jee-unicorn or gun-i-corn) is a Python Web Server Gateway Interface (WSGI) HTTP server. It is a pre-fork worker model,^{[clarification needed]} ported from Ruby's Unicorn project. The Gunicorn server is broadly compatible with a number of web frameworks, simply implemented, light on server resources and fairly fast. It is often paired with nginx, as the two have complementary features.

Architecture

Server model

• Central master process to manage the workers
• Requests are handled by worker processes
• Components:
  • Master
  • Sync workers
  • Async workers
  • Tornado workers
  • AsyncIO workers

Features

^{[citation needed]}

• Natively supports WSGI, web2py, Django and Paster^{[citation needed]}
• Automatic worker process management
• Simple Python configuration
• Multiple worker configurations
• Various server hooks for extensibility
• Compatible with Python 2.6+ and Python 3.2+

See also

• Comparison of web server software
• Comparison of application servers

References

External links

• Official website
• PyPI listings

 This article incorporates text available under the CC BY 3.0 license.