SQL Alchemy custom Base with Mixins

sql_alchemy_base_mixin.py

from sqlalchemy import TIMESTAMP, UUID, Column
from sqlalchemy.orm import declarative_mixin
from sqlalchemy.orm import declarative_base


# MIXINS:

@declarative_mixin
class IDMixin:
    id = Column(UUID, primary_key=True)


@declarative_mixin
class TimestampMixin:
    created_at = Column(TIMESTAMP(timezone=True))
    updated_at = Column(TIMESTAMP(timezone=True))

 

# Inhertit and use cls as factory:

class Base(IDMixin, TimestampMixin):
    ...

Base = declarative_base(cls=Base)

__all__=["Base"]