SQLAlchemy many-to-many orphan deletion

Question

I\'m trying to use SQLAlchemy to implement a basic users-groups model where users can have multiple groups and groups can have multiple users.

When a group becomes empty

Answer 1

Could you post a sample of your table and mapper set up? It might be easier to spot what is going on.

Without seeing the code it is hard to tell, but perhaps there is something wrong with the direction of the relationship?