bluetooth rssi pub to mqtt

from bt_proximity import BluetoothRSSI
import paho.mqtt.client as mqtt
import time

addr = '00:11:22:33:44:55'

broker = "192.168.1.200"
port = 1883
clientid = "rpi0"
user = "someusername"
password = "somepassword"
topic = "homeassistant/btrssi/yphone/bedroom"
pubinterval = 1

mqttc = mqtt.Client(clientid)


def main():
    btrssi = BluetoothRSSI(addr=addr)
    mqttc.username_pw_set(user, password=password)
    mqttc.connect(broker, port)
    while True:
        payloadraw = btrssi.request_rssi()
        payload = str(payloadraw)
        mqttc.publish(topic, payload)
        mqttc.loop()
        time.sleep(pubinterval)


if __name__ == '__main__':
    main()