gunicorn 'Green Unicorn' is a WSGI HTTP Server for UNIX, fast clients and nothing else. This is a port of Unicorn (http://unicorn.bogomips.org/) in Python. Install ------- Run command : $ python setup.py install Use gunicorn: ------------- $ gunicorn --help Usage: gunicorn [OPTIONS] APP_MODULE Options: --host=HOST Host to listen on. [127.0.0.1] --port=PORT Port to listen on. [8000] --workers=WORKERS Number of workers to spawn. [1] -h, --help show this help message and exit Example with test app : $ cd examples $ gunicorn --workers=2 test:app