Is there a way to get a name of the field of the pydantic object without hardcoding it as a string?

[peterlitvak]

Often one needs to provide the name of the field to some downstream code, e.g.:

class User(BaseModel):
   username: str
   firstname: str
   lastname: str

setup_index(User.__name__, "username")

The class name can be obtained from the class metadata, but the field name has to be hard-coded.
It would be nice to have some abstraction around this, too.
Something like a synthetic field User.username_info.name or a similar idea

[ophiry]

this would be very useful - did you find a solution or workaround?

[peterlitvak]

Not at the moment, no :(

[radioflyer28]

I had a need for this too... This worked for me:

from typing import Optional
from pydantic import BaseModel, Field

class SomeObj(BaseModel):
    somevar: Optional[str] = Field(default=None)

obj = SomeObj()
print(obj.__class__.__name__) #__name__ is already a string before printing

Output:

'SomeObj'