exception "myapp.models.DoesNotExist" instead of "MyModel.DoesNotExist"

Hello all,

i use Django 1.8.4 with sqlite.
I added a simple model into "catalogue" app:
class Zoom(models.Model):
name = models.CharField(max_length=200)

def __str__(self):
name = "%s" % self.name
return name

and dit manage.py makemigrations/migrate.
I have a code like this:
for val in ('10', '40'):
try:
obj=Zoom.objects.get(name=val)
except Zoom.DoesNotExist:
obj=Zoom.objects.create(name=val)

but when Zoom table is empty, instead of having Zoom.DoesNotExist
exception, i got this:
Traceback (most recent call last):
File
"/Users/me/python/virtualenv/python3/optimisme/catalogue/management/commands/corrige.py",
line 38, in handle
obj=Zoom.objects.get(name=val)
File
"/Users/me/python/virtualenv/python3/lib/python3.4/site-packages/django/db/models/manager.py",
line 127, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File
"/Users/me/python/virtualenv/python3/lib/python3.4/site-packages/django/db/models/query.py",
line 334, in get
self.model._meta.object_name
catalogue.models.DoesNotExist: Zoom matching query does not exist.

Anybody can help?

Thanks in advance,

--
Gérard Henry

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