来源： - https://flask-socketio.readthedocs.io/en/latest/deployment.html#gunicorn-web-server - https://flask-socketio.readthedocs.io/en/latest/deployment.html

需要安装的依赖

pip install gunicorn eventlet -i https://mirrors.aliyun.com/pypi/simple/  --trusted-host mirrors.aliyun.com

启动命令

gunicorn --worker-class eventlet -w 1 module:app

• --worker-class - 指定使用 eventlet
• --threads 100 - 线程数量100
• -w 1 - 工作进程数量 1

报错

1. class uri 'eventlet' invalid or not found

原因是 eventlet 新版本把 ALREADY_HANDLED 变量删掉，所以需要升级 gunicorn 或者降级 eventlet 参考：https://stackoverflow.com/questions/58589138/error-class-uri-eventlet-invalid-or-not-found