I am trying to write a generic class that takes a pydantic model type, however the model can only have string fields. So i am trying to verify this at runtime.
I looked and found this answer, but it does not seem to work in v2 as the FieldInfo type that is returned as the values of the dict from model_info does not have a type_ property.
Solution is to use field.annotation (see):
from pydantic import BaseModel
class MyModel(BaseModel):
a: int
b: str
c: list[float]
if __name__ == "__main__":
for field_name, field in MyModel.model_fields.items():
print(field_name, field.annotation, type(field.annotation))
gives:
a <class 'int'> <class 'type'>
b <class 'str'> <class 'type'>
c list[float] <class 'types.GenericAlias'>
