graphlib.CycleError 'nodes are in a cycle' on HACS install

[toby200]

Hi all. I've just tried installing predbat; I'm running home assistant via docker, and I've got an existing appdaemon setup also in docker, so used the HACS installation approach as I can't use plugins.

As soon as I've added predbat via appdaemon, the appdaemon logs show repeated errors along the lines of:
graphlib.CycleError: ('nodes are in a cycle', ['predbat', 'config', 'predbat'])

I tried restarting appdaemon and got the same error, though with different modules than before.
graphlib.CycleError: ('nodes are in a cycle', ['components', 'predbat', 'web', 'components'])

Any suggestions on where things might have gone wrong? More complete log trace below

I'm using Predbat v8.27.27 with HA 2025.11.3. Appdaemon is on 4.5.12, using python 3.12.12
My other appdaemon apps are working normally.

Many thanks
Toby

2025-11-23 17:06:07.902634 WARNING AppDaemon: ------------------------------------------------------------
2025-11-23 17:06:07.902757 WARNING AppDaemon: Unexpected error during utility()
2025-11-23 17:06:07.902869 WARNING AppDaemon: ------------------------------------------------------------
2025-11-23 17:06:07.903509 WARNING AppDaemon: Traceback (most recent call last):
  File "/usr/local/lib/python3.12/site-packages/appdaemon/utility_loop.py", line 246, in _loop_iteration_context
    yield timing
  File "/usr/local/lib/python3.12/site-packages/appdaemon/utility_loop.py", line 197, in loop
    await self.AD.app_management.check_app_updates()
  File "/usr/local/lib/python3.12/site-packages/appdaemon/app_management.py", line 923, in check_app_updates
    await self._import_modules(update_actions)
  File "/usr/local/lib/python3.12/site-packages/appdaemon/app_management.py", line 1237, in _import_modules
    load_order = self.dependency_manager.python_sort(modules)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/appdaemon/dependency_manager.py", line 236, in python_sort
    order = [n for n in topo_sort(self.python_deps.dep_graph) if n in modules]
                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/site-packages/appdaemon/dependency.py", line 224, in topo_sort
    return list(ts.static_order())
           ^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/local/lib/python3.12/graphlib.py", line 244, in static_order
    self.prepare()
  File "/usr/local/lib/python3.12/graphlib.py", line 106, in prepare
    raise CycleError(f"nodes are in a cycle", cycle)
graphlib.CycleError: ('nodes are in a cycle', ['predbat', 'config', 'predbat'])

[gcoan]

Please don't use appdaemon install for Predbat, it is pretty much deprecated and not supported any more

Instead use the docker install as described in the installation guide

[toby200]

Thanks. I didn't think the docker install would work with my home-assistant docker install as it talked about being an addon and docker home assistant doesn't support native addons. I didn't realise that addons could still work fine if there's a docker container for the addon, so I learnt something else new today.

Anyways, I've got it up and running and now playing with the configuration and setup. Thanks again for the tip - docker install actually suits me much better so a double bonus :-)

[gcoan]

Thanks. I didn't think the docker install would work with my home-assistant docker install as it talked about being an addon and docker home assistant doesn't support native addons

HAOS is really just a packaged docker install and addons are really just docker containers, so the nipar44 docker image is not really an addon, it's a fork of the predbat addon with the HAOS bit stripped out so it will work natively with docker

Glad you are sorted now 👍