Missing dependency 'Six'

[RoboMagus]

What were you doing?

After updating my docker Octoprint image to 1.8.0 I ran into issues relating to missing python module six, of which this plugins is one of ones that were throwing exceptions.

See this issue in the octoprint repo.

Python module six is imported, but not listed as a dependency in setup.py.

What did you expect to happen?

No exceptions.

What happened instead?

See issue linked above.

Version of OctoPrint

1.8.0 (Docker)

Version of the MQTT plugin

Any

Used MQTT broker and its version

mosquitto

Link to octoprint.log

2022-05-25 18:27:20,666 - octoprint.startup - INFO - ******************************************************************************
2022-05-25 18:27:20,670 - octoprint.startup - INFO - Starting OctoPrint 1.8.0
2022-05-25 18:27:20,671 - octoprint.startup - INFO - ******************************************************************************
2022-05-25 18:27:21,259 - octoprint.util.connectivity.connectivity_checker - INFO - Connectivity changed from offline to online
2022-05-25 18:27:21,314 - octoprint.util.connectivity.connectivity_checker - INFO - Connectivity state is currently: online
2022-05-25 18:27:21,314 - octoprint.util.connectivity.connectivity_checker - INFO - Connecting to 1.1.1.1:53 is working
2022-05-25 18:27:21,314 - octoprint.util.connectivity.connectivity_checker - INFO - Resolving octoprint.org is working
2022-05-25 18:27:21,505 - octoprint.startup - INFO - Blacklist processing done, adding 3 blacklisted plugin versions: roomtemp (any), GcodeEditor (>=0.1.1,<=0.2.8), gcodeleveling (>=0.1.0,<=0.1.1)
2022-05-25 18:27:21,519 - octoprint.plugin.core - INFO - Loading plugins from /usr/local/lib/python3.8/site-packages/octoprint/plugins, /octoprint/octoprint/plugins and installed plugin packages...
2022-05-25 18:27:22,029 - octoprint.plugin.core - INFO - Plugin Virtual Printer is disabled.
2022-05-25 18:27:23,718 - octoprint.plugin.core - INFO - Plugin Pi Support Plugin (2022.3.1) is disabled.
2022-05-25 18:27:23,756 - octoprint.plugin.core - ERROR - Error loading plugin mqtt
Traceback (most recent call last):
  File "/usr/local/lib/python3.8/site-packages/octoprint/plugin/core.py", line 1274, in _import_plugin
    module = _load_module(module_name, spec)
  File "/usr/local/lib/python3.8/site-packages/octoprint/plugin/core.py", line 52, in _load_module
    return imp.load_module(name, f, filename, details)
  File "/usr/local/lib/python3.8/site-packages/octoprint/vendor/imp.py", line 238, in load_module
    return load_package(name, filename)
  File "/usr/local/lib/python3.8/site-packages/octoprint/vendor/imp.py", line 212, in load_package
    return _load(spec)
  File "<frozen importlib._bootstrap>", line 702, in _load
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 843, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "/octoprint/plugins/lib/python3.8/site-packages/octoprint_mqtt/__init__.py", line 5, in <module>
    import six
ModuleNotFoundError: No module named 'six'

[Paraphraser]

Same problem. I'm running Octoprint in a Docker container. Fix:

$ docker exec octoprint pip install six
$ docker-compose up -d --force-recreate octoprint

[chileocat]

I can confirm this problem with Octoprint 1.8.1 installed with pip. Plugin installed via plugin manager but doesn‘t work. After installing six manually with pip, it‘s fine.

[jneilliii]

have patched setup.py and released new version since six was removed in OctoPrint 1.8.1.