# gunicorn > Python WSGI HTTP Server. > More information: . - Run Python web app: `gunicorn {{import.path:app_object}}` - Listen on port 8080 on localhost: `gunicorn --bind {{localhost}}:{{8080}} {{import.path:app_object}}` - Turn on live reload: `gunicorn --reload {{import.path:app_object}}` - Use 4 worker processes for handling requests: `gunicorn --workers {{4}} {{import.path:app_object}}` - Use 4 worker threads for handling requests: `gunicorn --threads {{4}} {{import.path:app_object}}` - Run app over HTTPS: `gunicorn --certfile {{cert.pem}} --keyfile {{key.pem}} {{import.path:app_object}}`