I'm a python probie, I'm trying to put the message that I send from my phone to GUI, or use the message as an order to execute some command. But I CANT get the message out, please help me out.

import PySimpleGUI as sg
from pythonosc.dispatcher import Dispatcher
from pythonosc.osc_server import BlockingOSCUDPServer

ip = "192.168.0.108"
port = 1337

def print_handler(address, *args):
print(f"{address}: {args}")

def default_handler(address, *args):
print(f"DEFAULT {address}: {args}")
print(f":{args}")

dispatcher = Dispatcher()
dispatcher.map("/something/*", print_handler)
dispatcher.set_default_handler(default_handler)

trying to get the msg and print it out But it didn't work

msg = dispatcher.set_default_handler(print_handler)

print(f"testing{msg}")

server = BlockingOSCUDPServer((ip, port), dispatcher)

server.serve_forever()

layout = [[sg.Text('MetaBorder')],
[sg.Text(size=(20,1), font= "Any 15", key="-OUT-")],
[sg.Button("获取数据"), sg.Button("退出")]
]

window = sg.Window("Metaborder", layout, keep_on_top=True)

while True:
event, values = window.read(timeout=1000)
if event is None or event == "退出":
break
window["-OUT-"].update(msg)

window.close()