Update to using Paho MQTT v2 API calls

[esand]

Request to update code to use the new Paho MQTT v2 API calls.

I have taken my uneducated attempt at changing the code here: https://github.com/esand/dahuavto2mqtt.

The reason codes changed from a straight int to a ReasonCode type which can be an int, or a list/dict of ints for multiple codes. Supposedly you can use .getName() to get the text description for the code(s), so I modified the code to remove the call to the const list of defined error codes. My understanding of Python is zero though, so I'm not sure if I did it right or not 😄

My hope is that the work I did in my fork helps you in updating your repo correctly.

[esand]

For reference, full changes here: https://github.com/eclipse/paho.mqtt.python/releases/tag/v2.0.0

Realized that there might be an issue with conflicting logger definitions?

[baudneo]

I'll take a look at this today and try and integrate V2. May need testing for backwards compatibility (maybe not though since it's a docker image).

[baudneo]

For reference, full changes here: https://github.com/eclipse/paho.mqtt.python/releases/tag/v2.0.0

Realized that there might be an issue with conflicting logger definitions?

The logger aspect is in relation to sub-classing. So, not a global level logger like this script has but a class property.

Example:

import paho.mqtt.client as mqtt

class MyClientClass(mqtt.Client):
    _logger = 10  # this is an attribute of a sub-class of mqtt.Client
    hw = "Hello World!"

    @property
    def logger(self)
        """This is a property to control accessing the attr, since this is a subclass, a conflict will arise rather than overriding if things arent handled properly"""
        # You can do some additonal logic before returning a result
        self.logger += 5
        return self._logger

    @logger.setter
    def logger(self, value):
        if not isinstance(value, int):
            raise TypeError(f"The supplied value is the wrong type: {type(value)}, must be int.")
        self._logger = value

if __name__ == "__main__":
    x = MyClientClass()
    print(f"{x.logger = } // {x.hw = }")

from the release notes:

Possible breaking change: Add properties to access most Client attribute. Closes eclipse-paho/paho.mqtt.python#764.
Since this add new properties like logger, if a sub-class defined logger, the two logger
will conflict.

[baudneo]

Should be good to go. New image is pushed, everything seems to be working ok on my end.

[esand]

Thanks! Builds fine on my end too and it's up and running, but haven't tested events yet. If anything comes up, I'll file a separate issue.

Thanks so much for the work on this!