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from sqlalchemy import Column
from sqlalchemy import Integer
from sqlalchemy import String
from sqlalchemy.orm import declarative_base
from sqlalchemy.orm import registry
reg: registry = registry()
Base = declarative_base()
class SomeAbstract(Base):
__abstract__ = True
class HasUpdatedAt:
updated_at = Column(Integer)
@reg.mapped
class Foo(SomeAbstract):
__tablename__ = "foo"
id: int = Column(Integer(), primary_key=True)
name: str = Column(String)
class Bar(HasUpdatedAt, Base):
__tablename__ = "bar"
id = Column(Integer(), primary_key=True)
num = Column(Integer)
Bar.__mapper__
# EXPECTED_MYPY: "Type[HasUpdatedAt]" has no attribute "__mapper__"
HasUpdatedAt.__mapper__
# EXPECTED_MYPY: "Type[SomeAbstract]" has no attribute "__mapper__"
SomeAbstract.__mapper__
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