(the many-to-many pattern is described at :ref:`relationships_many_to_many`)::
from sqlalchemy import Column, Integer, String, ForeignKey, Table
- from sqlalchemy.orm import relationship
- from sqlalchemy.ext.declarative import declarative_base
+ from sqlalchemy.orm import declarative_base, relationship
Base = declarative_base()
``UserKeyword``::
from sqlalchemy import Column, Integer, String, ForeignKey
- from sqlalchemy.orm import relationship, backref
-
from sqlalchemy.ext.associationproxy import association_proxy
- from sqlalchemy.ext.declarative import declarative_base
+ from sqlalchemy.orm import backref, declarative_base, relationship
Base = declarative_base()
when new elements are added to the dictionary::
from sqlalchemy import Column, Integer, String, ForeignKey
- from sqlalchemy.orm import relationship, backref
from sqlalchemy.ext.associationproxy import association_proxy
- from sqlalchemy.ext.declarative import declarative_base
+ from sqlalchemy.orm import backref, declarative_base, relationship
from sqlalchemy.orm.collections import attribute_mapped_collection
Base = declarative_base()
present on ``UserKeyword``::
from sqlalchemy import Column, Integer, String, ForeignKey
- from sqlalchemy.orm import relationship, backref
-
from sqlalchemy.ext.associationproxy import association_proxy
- from sqlalchemy.ext.declarative import declarative_base
+ from sqlalchemy.orm import backref, declarative_base, relationship
from sqlalchemy.orm.collections import attribute_mapped_collection
Base = declarative_base()
from sqlalchemy import Integer
from sqlalchemy import String
from sqlalchemy.ext.asyncio import AsyncSession
- from sqlalchemy.ext.asyncio import create_async_engine
- from sqlalchemy.ext.declarative import declarative_base
+ from sqlalchemy.ext.asyncio import create_async_engine
from sqlalchemy.future import select
+ from sqlalchemy.orm import declarative_base
from sqlalchemy.orm import relationship
from sqlalchemy.orm import selectinload
from sqlalchemy.orm import sessionmaker