TimeoutError: timed out

[theja0473]

I am using same script like below:

import eventlet
import json
from flask import Flask, render_template
from flask_mqtt import Mqtt
from flask_socketio import SocketIO
from flask_bootstrap import Bootstrap
eventlet.monkey_patch()
app = Flask(name)
app.config['TEMPLATES_AUTO_RELOAD'] = True
app.config['MQTT_BROKER_URL'] = 'localhost'
app.config['MQTT_BROKER_PORT'] = 1883
app.config['MQTT_KEEPALIVE'] = 5
app.config['MQTT_TLS_ENABLED'] = False
mqtt = Mqtt(app)
socketio = SocketIO(app)
bootstrap = Bootstrap(app)
@app.route('/')
def index():
return render_template('index.html')
@socketio.on('publish')
def handle_publish(json_str):
data = json.loads(json_str)
mqtt.publish(data['topic'], data['message'])
@socketio.on('subscribe')
def handle_subscribe(json_str):
data = json.loads(json_str)
mqtt.subscribe(data['topic'])
@socketio.on('unsubscribe_all')
def handle_unsubscribe_all():
mqtt.unsubscribe_all()
@mqtt.on_message()
def handle_mqtt_message(client, userdata, message):
data = dict(
topic=message.topic,
payload=message.payload.decode()
)
socketio.emit('mqtt_message', data=data)
@mqtt.on_log()
def handle_logging(client, userdata, level, buf):
print(level, buf)
if name == 'main':
socketio.run(app, host='0.0.0.0', port=5000, use_reloader=True, debug=True)

But getting below error while running script.

Traceback (most recent call last):
File "C:\Users\THJ3KOR\source\repos\FLAK_REST_API\flask_mqtt_websocket.py", line 26, in
mqtt = Mqtt(app)
File "C:\Users\THJ3KOR\Python310\lib\site-packages\flask_mqtt_init_.py", line 104, in init
self.init_app(app)
File "C:\Users\THJ3KOR\Python310\lib\site-packages\flask_mqtt_init_.py", line 183, in init_app
self.connect()
File "C:\Users\THJ3KOR\Python310\lib\site-packages\flask_mqtt_init.py", line 209, in _connect
res = self.client.connect(
File "C:\Users\THJ3KOR\Python310\lib\site-packages\paho\mqtt\client.py", line 914, in connect
return self.reconnect()
File "C:\Users\THJ3KOR\Python310\lib\site-packages\paho\mqtt\client.py", line 1044, in reconnect
sock = self._create_socket_connection()
File "C:\Users\THJ3KOR\Python310\lib\site-packages\paho\mqtt\client.py", line 3685, in _create_socket_connection
return socket.create_connection(addr, timeout=self._connect_timeout, source_address=source)
File "C:\Users\THJ3KOR\Python310\lib\site-packages\eventlet\green\socket.py", line 63, in create_connection
raise err
File "C:\Users\THJ3KOR\Python310\lib\site-packages\eventlet\green\socket.py", line 53, in create_connection
sock.connect(sa)
File "C:\Users\THJ3KOR\Python310\lib\site-packages\eventlet\greenio\base.py", line 266, in connect
self._trampoline(fd, write=True, timeout=timeout, timeout_exc=_timeout_exc)
File "C:\Users\THJ3KOR\Python310\lib\site-packages\eventlet\greenio\base.py", line 211, in trampoline
return trampoline(fd, read=read, write=write, timeout=timeout,
File "C:\Users\THJ3KOR\Python310\lib\site-packages\eventlet\hubs_init.py", line 159, in trampoline
return hub.switch()
File "C:\Users\THJ3KOR\Python310\lib\site-packages\eventlet\hubs\hub.py", line 313, in switch
return self.greenlet.switch()
TimeoutError: timed out