Adding a script for a testing consumer of the mqtt messagebus. Ideal for debugging :)

Consumer.py

+import keyboard
+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, reason_code, properties):
+    print(f"Connected with result code {reason_code}")
+    client.subscribe("Topic1")
+
+# The callback for when a PUBLISH message is received from the server.
+def on_message(client, userdata, msg):
+    print(msg.topic+" "+str(msg.payload))
+
+mqttc = mqtt.Client(mqtt.CallbackAPIVersion.VERSION2, userdata=None)
+mqttc.on_connect = on_connect
+mqttc.on_message = on_message
+mqttc.username_pw_set(username="standardUser", password="GreatHHZ4Ever!")
+mqttc.connect("localhost", 1883)
+while True:
+    mqttc.loop_start()
+    if keyboard.read_key == "space":
+        mqttc.disconnect()
+        mqttc.loop_stop()
+        print("goodbye!")
+        break
+    mqttc.loop_stop()