Here a few field validators using Pydantic v2, but the behavior I'm experiencing is that the field_validator will return an error immediately instead of running all field validations and returning all field errors with the record being validated. This is probably expected, but I'm wondering if it's possible to run all field_validations for a record, and return all failures together. class Foo(BaseModel): name: str age: int @field_validator("name", mode="after") def field_length(cls, value: str): value_length = len(value) if value_length > 20: raise ValueError("you know the drill, less than 20!") return value @field_validator("age", mode="before") def cast_str_to_int(cls, value: str) -> int: if not value.isnumeric(): raise ValueError("String read in does not conform to int type.") return int(value) Continue reading...
