Reference multiple var defined within class via classmethod-CodePudding

Is it possible to reference multiple vars defined within a class by classmethod (or by some other means)?

For context I'm trying to consolidate the CRUD and model classes for a SQL database to simplify the codebase.

For example I'm looking to implement something like the below:

from __future__ import annotations

class Person:
      name: str
      gender: str
      age: int
    
      @classmethod
      def get_person(cls, db: Session) -> list[Person]:
         return db.query(cls.Person) # <-- Key part is here. I'll need to send name,
                                     #     gender, and age to the database. Currently 
                                     #     this is implemented separately as
                                     #    `class CrudPerson` and `class ModelPerson`.

CodePudding user response：

Adding from __future__ import annotations and referencing the class directly seems to work. (e.g. db.query(Person))

Additional information on this can be found in PEP 563

CodePudding user response：

If you make Person a NamedTuple, you can use cls._fields.

Or if you make Person a dataclass, you can use dataclasses.fields(cls).