How do I get the name of an SQLAlchemy object's primary key?

Question

I just want to programatically determine the name of an SQLalchemy model\'s primary key.

Answer 1

Assuming the declarative model class is User,

>>> list(User.__table__.primary_key)[0].name
'id'

Or for Membership which has a composite primary key

>>> [pk.name for pk in Membership.__table__.primary_key]
['user_id', 'group_id']