1、安装Waitress

pip3 install -i https://pypi.tuna.tsinghua.edu.cn/simple -U Waitress

2、编写应用程序app

app1.py

from flask import Flask

app = Flask(__name__)

@app.route('/', methods=['GET'])
def hello_world():
    return 'Hello, World!!!'

if __name__ == '__main__':
    app.run(host='0.0.0.0', port=5000, debug=False)

3、编写Waitress程序

Waitress_server.py

# 对于 Flask 应用
from waitress import serve
# app1 上面写的app1应用py模块，app是app1模块中的Flask
from app1 import app

serve(app, host='0.0.0.0', port=5000)

4、测试