pub_01.py

#! /usr/bin/python3
# ===================================================================
# MQTT Publish
# -------------------------------------------------------------------
# Python Client Documentation
# www.eclipse.org/paho/index.php?page=clients/python/docs/index.php
# ===================================================================

import paho.mqtt.publish as publish
import time

broker = '192.168.1.77'
topic  = 'sensors/sensor1'

# ---- main

print()
print(f"broker: {broker}")
print(f"topic : {topic}")
print()

print("Publishing status ...")
publish.single(topic, 'abc', qos=0, hostname=broker)

print("Sleep ...")
time.sleep(2)

print("Publishing status ...")
publish.single(topic, 'xyz', qos=0, hostname=broker)