Python ORM frame Pony Ten very convenient database operation tools , You can query data from in the form of objects , There is a problem in writing the server program today , I haven't met it before, so I want to share it with you .

problem ： An error is reported when accessing the database as an object ：

Cannot load attribute BaseSinglePractice[99].Name: the database session is over

The main meaning is that the session with the database has ended , Cannot access properly .

resolvent ：

You only need to add with db_session:

with db_session:

Just request a conversation with the database . The complete code is as follows ：

 with db_session:
# Get user records
results = select(user for user in User if user.IsDeleted is False)