myPyllant not working after Home Assistant 2025.5.2 update (pydantic conflict)

Third party integrations
1

Hi everyone,

After upgrading to Home Assistant 2025.5.2, the custom integration myPyllant no longer works due to a version conflict with the pydantic library.

What’s happening:

  • myPyllant==0.9.1 requires pydantic >=2.10.4, <2.11.dev0
  • Home Assistant 2025.5.2 now uses pydantic==2.11.3
  • This causes a dependency conflict and prevents the integration from being installed or working

Additional context:

  • The integration is from https://github.com/kellerza/myPyllant
  • Unfortunately, GitHub Issues are disabled for that repository
  • So I can’t report the issue or check if an update is planned

My questions:

  • Is anyone else experiencing this issue?
  • What’s the recommended approach when a custom integration breaks due to a core library update and there’s no way to contact the maintainer?

Thanks in advance!
I’m happy to help test or report more info if needed.

2

Hi, welcome to the forum!

The GH page for this component doesn’t exist anymore and apparently other versions are facing issues as well.

3

Update regarding the original issue (myPyllant not working after Home Assistant 2025.5.2):

Just to clarify: While the myPyllant library itself is maintained at kellerza/myPyllant, the Home Assistant integration comes from a separate repository: signalkraft/mypyllant-component, which wraps the library for HA.

:white_check_mark: The issue has been resolved in the latest versions:

  • myPyllant==0.9.0 (library)
  • mypyllant-component v0.9.2b0 (HA custom integration)

These updates fix the Pydantic 2 compatibility issue and restore functionality under Home Assistant 2025.5.2.

Thanks to everyone who helped track this down!

4

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