helloworld.py

from flask import Flask
from flask_socketio import SocketIO

app = Flask(__name__)
socketio = SocketIO(app)

@app.route('/')
def index():
    return 'Hello, World!'

if __name__ == '__main__':
    socketio.run(app,port=7860,allow_unsafe_werkzeug=True,host='0.0.0.0')