Poll a umqtt broker to test for connection.

[Variomatic]

I'm connecting to an MQTT broker umqtt.simple and am trying to create a loop that will catch a failed attempt to connect to the broker. Is there any way of finding out if I have a connection to the server, ideally I'd like to do something like this:

while True:
try:
mqttc.connect()
print("Connected to broker")
print("Sending data every ", INTERVAL, " second(s)")
if mqttc.is_connected == True: <-- THIS IS KINDA WHAT I NEED
break
except:
print("Failed to connect to MQTT broker...")
print("Attempting to connect again, ctl-c to exit")

Is there any way of doing something like this, or will I need to do something more elaborate?

[pythoncoder]

Your use of try-except in a loop already copes with the case of a failed connection, you don't need a further test in the try block. The line "THIS IS KINDA WHAT I NEED" won't be executed if the connection failed because execution will pass from mqttc.connect() to the except block.

If you're thinking about detecting a connection which is dropped some time after the initial connection you need to use exception handling again. You need to look at umqtt.robust which handles this case.