From: Tutor on behalf of GMX
Sent: Monday, September 11, 2017 9:38 AM
To: tutor@python.org
Subject: [Tutor] How to create an object in database only if the object is not
already there?
Now when I create a Course object like this:
>>> Course(title=‘A new course’)
An object is
On 11/09/17 10:38, GMX wrote:
> I am using `pony` orm to write a simple class as my model.
pony is not a standard module (indeed I only heard about it
from your email) so you are probably best asking on the
pony support forum if such exists or via the author.
> from pony.orm import Database
> fr
Hi,
I am using `pony` orm to write a simple class as my model. Here is the class.
```
from pony.orm import Database
from pony.orm import Required, Optional
from pony.orm import db_session
from pony.orm import select, commit
DB_PATH = ‘db.sqlite’
db = Database()
class Course(db.Entity):
"
