MQTT Client for python3 remember to install paho-mqtt

mqtt-client.py

import paho.mqtt.client as mqtt



# The callback for when the client receives a CONNACK response from the server.

def on_connect(client, userdata, flags, rc):

        print("Connected with result code "+str(rc))

        # Subscribing in on_connect() means that if we lose the connection and

        # reconnect then subscriptions will be renewed.

        client.subscribe("hola", 0)



    # The callback for when a PUBLISH message is received from the server.

def on_message(client, userdata, msg):
    print(msg.topic+" "+str(msg.payload))

def on_subscribed(mosq, obj, mid, granted_qos):
    print("Subscribed mid: " + str(mid) + ", qos: " + str(granted_qos))


client = mqtt.Client()

client.on_connect = on_connect

client.on_message = on_message

client.on_subscribed = on_subscribed

client.connect("localhost", 1883)

# client.subscribe("hola", 0)

    # Blocking call that processes network traffic, dispatches callbacks and

    # handles reconnecting.

    # Other loop*() functions are available that give a threaded interface and a

    # manual interface.

client.loop_forever()