Gunicorn 'Green Unicorn' is a Python WSGI HTTP Server for UNIX. It's a pre-fork worker model ported from Ruby's Unicorn project. The Gunicorn server is broadly compatible with various web frameworks, simply implemented, light on server resource usage, and fairly speedy.

Feel free to join us in #gunicorn on Libera.chat.

The documentation is hosted at https://docs.gunicorn.org.

Gunicorn requires Python 3.x >= 3.5.

Install from PyPI:

$ pip install gunicorn

Basic usage:

$ gunicorn [OPTIONS] APP_MODULE

Where APP_MODULE is of the pattern $(MODULE_NAME):$(VARIABLE_NAME). The module name can be a full dotted path. The variable name refers to a WSGI callable that should be found in the specified module.

Example with test app:

$ cd examples
$ gunicorn --workers=2 test:app

See our complete contributor's guide for more details.

Gunicorn is released under the MIT License. See the LICENSE file for more details.