■ python 패키지 설치! pip install paho-mqtt ■ subscribe 예제import paho.mqtt.client as mqttdef on_connect(client, userdata, flags, rc): if rc == 0: print("connected OK") else: print("Bad connection Returned code=", rc)def on_disconnect(client, userdata, flags, rc=0): print(str(rc))def on_subscribe(client, userdata, mid, granted_qos): print("subscribed: " + str(mid) + " " + st..