main.py

from flask import Flask, request
from flask_socketio import SocketIO, emit

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

# Variable to be changed
variable = "initial_value"

@app.route('/changeurl=<value>')
def change_url(value):
    global variable
    variable = value
    socketio.emit('change_variable', {'value': variable})
    return f"Variable changed to: {variable}"

@socketio.on('connect')
def handle_connect():
    print('Client connected')

@socketio.on('disconnect')
def handle_disconnect():
    print('Client disconnected')

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