gistfile1.sh

APP='wsgi:test_app'
PARAMS="--workers 1 --timeout 15 --backlog 16 --keep-alive 2 $APP"

gunicorn --worker-class sync $PARAMS
gunicorn --worker-class eventlet --worker-connections 1 $PARAMS 
gunicorn --worker-class gthread --threads 1 $PARAMS

wsgi.py

import wsgiref.simple_server
import time

def test_app(environ, start_response):
    time.sleep(45)
    start_response('200 OK', [('Content-type', 'text/plain')])
    return ''
        
if __name__ == "__main__":
    server = wsgiref.simple_server.make_server('', 8888, test_app)
    server.serve_forever()