I'm not sure it's doable either... but I wanted to point out something: class WeatherStation(MainBase): class EvaporationData(Base):
They are inheriting from different bases, and `Base` is not associated to the same metadata as `MainBase` -- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at https://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.