>>> db.TFPolicyData.query.get(35)

>>> db.TFPolicyData.query.get(1)
<<< <TFPolicyData: 3003:120 (active)>

>>> db.TFPolicyData.query.filter_by(tf_id=35)
<<< <sqlalchemy.orm.query.Query object at 0x872facc>

>>> _.first()

>>> db.TFPolicyData.query.filter_by(tf_id=1)
<<< <sqlalchemy.orm.query.Query object at 0x8754cec>

>>> _.first()
<<< <TFPolicyData: 3003:120 (active)>

>>> db.TFPolicyData.query.filter_by(tf_id=35)
<<< <sqlalchemy.orm.query.Query object at 0x8754eac>

>>> list(_)
<<< []