Pydantic 2.6.0 breaks pathlib validation against str | os.PathLike

[ian-activeloop]

I'm trying to make use of a project that has paper-qa hardlocked to v5.0.10 but the moment I try to update individual settings object returned form its get_settings() method I run into pydantic validation errors on 2 fields (shown below, linking to lines of specific version used) that are typed as str | os.PathLike. This was working for my colleagues and I last week, but after a couple of us redid our venvs we got the pydantic-settings==2.6.0 version, and for those of us on that version the paper-qa settings outright break. When we compared relevant version numbers with a colleague that did not have that validation issue we discovered they were still on pydantic-settings==2.5.2, and upon reverting to that version all of our path validation errors stopped and we were able to run paper-qa. As 2.6.0 was a "minor" release, we do not expect breaking behavior to occur.

https://github.com/Future-House/paper-qa/blob/v5.0.10/paperqa/settings.py#L413-L419
https://github.com/Future-House/paper-qa/blob/v5.0.10/paperqa/settings.py#L440-L445

[hramezani]

Thanks @ian-activeloop for reporting this issue.

This is a duplicate of #445 and caused by 76ba2c6.

please follow the original issue

[hramezani]

This has been fixed in pydantic-settings 2.6.1