Get or create an object with SQLAlchemy

get_or_creat.py

# http://stackoverflow.com/questions/2546207/does-sqlalchemy-have-an-equivalent-of-djangos-get-or-create

# credit to Wolf
def get_or_create(session, model, defaults=None, **kwargs):
    instance = session.query(model).filter_by(**kwargs).first()
    if instance:
        return instance, False
    else:
        params = dict((k, v) for k, v in kwargs.iteritems() if not isinstance(v, ClauseElement))
        params.update(defaults or {})
        instance = model(**params)
        session.add(instance)
        return instance, True
      
# credit to skytreader and Kevin.
def get_or_create_simple(session, model, **kwargs):
    instance = session.query(model).filter_by(**kwargs).first()
    if instance:
        return instance
    else:
        instance = model(**kwargs)
        session.add(instance)
        session.commit()
        return instance

I am unable to import session I got this
AttributeError: 'sessionmaker' object has no attribute 'query'

I'm sorry it's been a while since I made this or used sqlalchemy. I would guess there have been changes in sqlalchemy that make this incorrect