I found the problem. Listed here for future generations (or more likely my future self). The classes for each schema I have are defined in separate files. In each I was calling
Base = declarative_base(bind=me.engine) I was also doing the same in the class I have that wraps the database connection. It seems like these Base classes were different enough not to be able to share objects subclassed from them. Ensuring all used one common Base fixed things. Thanks for the help, Demitri -- 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.