Pyscript MQTT publishing message

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I'm working on py-script html page and I want to publish a message via mqtt in a specific topic. I put the python code in the tag

import asyncio
import os
import signal
import time
    
from gmqtt import Client as MQTTClient
    
STOP = asyncio.Event()
   
    
def on_connect(client, flags, rc, properties):
        print('Connected')
        client.subscribe('TEST/#', qos=0)
    
    
def on_message(client, topic, payload, qos, properties):
        print(payload)
    
    
def on_disconnect(client, packet, exc=None):
        print('Disconnected')
    
def on_subscribe(client, mid, qos, properties):
        print('SUBSCRIBED')
    
 
    
async def main(broker_host):
        client = MQTTClient("3232DZQ")
    
        client.on_connect = on_connect
        client.on_message = on_message
        client.on_disconnect = on_disconnect
        client.on_subscribe = on_subscribe
     
        await client.connect(broker_host)
    
        client.publish('TEST/TIME', 'IZISIUIQY', qos=1)

        await STOP.wait()
        await client.disconnect()

def ask_exit(*args):
    STOP.set()    
    
if __name__ == '__main__':
        loop = asyncio.new_event_loop() 
        host = 'broker.hivemq.com' 
        loop.run_until_complete(main(host))

When I run the python file alone it works fine: python file working fine , but when I put the code in the tags, I doesn't work. The html page that I want to run and publish message via mqtt, points on the python file using the tag pyscript and the attribute src="publish.py"

<!DOCTYPE html>
<html>
  <head> 

    <title>Publish MQTT</title>
    <link rel="stylesheet" href="https://pyscript.net/alpha/pyscript.css" /> 
<script defer src="https://pyscript.net/alpha/pyscript.js"></script>
    <py-env>
        - gmqtt
    </py-env> 
  </head>

  <body>

  <!--calling publish python code-->
<py-script src="publish.py"></py-script>

  </body>
</html>

error



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