Deprecated pydantic config

[jekozyra]

smart_union and allow_population_by_field_name which are used in UniversalBaseModel are both deprecated per pydantic.

[TheJedinator]

Since per your contribution guidelines you suggest opening a discussion and @jekozyra has done so I'll leave the very minimal change required for you to stop having warnings pushed to all pydantic v2 customers.

class UniversalBaseModel(pydantic.BaseModel):
    class Config:
        # note smart_union has been removed here as it's now the default in pydantic v2
        populate_by_name = True
        validate_by_name = True # formerly allow_population_by_field_name
        json_encoders = {dt.datetime: serialize_datetime}
        # Allow fields beginning with `model_` to be used in the model
        protected_namespaces = ()

[TheJedinator]

More info about pydantic unions can be found here: https://docs.pydantic.dev/latest/concepts/unions/

[aprams]

We would also appreciate this! Polluting our logs currently

[cmdelatorre]

Same here. We'd greatly appreciate it if this could be updated.

[sidmitra]

Note that pydantic.v1 stuff might be holding up other upgrades. I believe pydantic.v1 isn't officially supported on python 3.14+

pydantic/pydantic#12618

When a module is imported from pydantic.v1 and a user is running Python 3.14, they'll get a warning: "Core Pydantic V1 functionality isn't compatible with Python 3.14 or greater."

It might be ok to pin to pydantic v2 or do conditional import based logic to do different things if pydantic v2 or v1 was found(for backward compatability). Otherwise mostly it means we'd have to pin to a temporary git fork till this is resolved here.

PS: I can send a PR if needed.