I’m trying to create a set of tables using SQL Alchemy 2.0

class Base(DeclarativeBase):
    pass

class Attribute_Details(Base):
    """

    """
    __tablename__ = "attribute_details"
    id: Mapped[int] = mapped_column(primary_key=True)
    description: Mapped[str] = mapped_column()
    opened: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    closed: Mapped[datetime] = mapped_column()
    report_attr: Mapped["Report_Attributes"] = relationship(back_populates="details")

def connect(self) -> bool:
    """
    Establish connection to the database
    """
    try:
        self.engine = self.db.connect()
        self.session_maker = sessionmaker(bind=self.engine)
        self.meta = sqlalchemy.MetaData()
        return True
    except exc.SQLAlchemyError as e:
        print(str(e))
        return False

def create_tables(self):
    """
    Create the corresponding tables for the Report template
    """
    for table in self.tables:
        if not self.engine.dialect.has_table(self.engine, table.__tablename__):
            table_obj = [table.__table__]
            Base.metadata.create_all(self.engine, tables=table_obj)
            # CreateTable(table_obj).compile(dialect=postgresql.dialect())
            self.logger.info("Created DB Table {}".format(table.__tablename__))
        else:
            self.logger.info("DB Table {} already exists".format(table.__tablename__))

tables: List[Base] = [Attribute_Details]
db = Database(config['db_con_test'])
db.connect():
db.create_tables()

Altough it reports “Created DB Table attribute_details”, the table is not created in the database. I tried the option with Base.metadata.create_all() as well as CreateTable(). I cannot spot the issue as the creation of tables with the new Declarative Mapping of SQL2.0 isn’t explained very well… at least for me.