LibraryMQTT not usable with paho-mqtt 2.0.0

[BriceBoy]

ValueError: Unsupported callback API version: version 2.0 added a callback_api_version, see migrations.md for details

Traceback (most recent call last):
  File "C:\WINDOWS\ServiceProfiles\NetworkService\AppData\Roaming\Python\Python37\site-packages\MQTTLibrary\MQTTKeywords.py", line 71, in connect
    self._mqttc = mqtt.Client(client_id, clean_session)
  File "C:\WINDOWS\ServiceProfiles\NetworkService\AppData\Roaming\Python\Python37\site-packages\paho\mqtt\client.py", line 767, in __init__
    "Unsupported callback API version: version 2.0 added a callback_api_version, see migrations.md for details"
ValueError: Unsupported callback API version: version 2.0 added a callback_api_version, see migrations.md for details

[romanliv]

I tried to address this issue in #35, maybe someone with enough permissions can review and merge it if the fix is ok.

[BriceBoy]

Thank you ! I hope this will be done ^^

[tyorkco]

While waiting for paho 2.0 support is there anyway to get a temporary relief fix that at minimum allows this library to run as 1.0 but in paho 2.0 environment?

All it would take is to add this import to MQTTKeywords.py:

import paho.mqtt as paho

And replace line 71 of MQTTKeywords.py with:

if paho.__version__ < "2.0":
    self.mqtt.Client(client_id, clean_session)
else:
    self.mqtt.Client(mqtt.CallbackAPIVersion.VERSION1, client_id, clean_session)