Django Application: Model ImportError

Question

I have a django 1.9 application using DRF with the following folder structure

- api/
- api/models.py
- api/serializers.py
- api/views.py
- manage.py

In serializers.py I have an import:

from api.models import Model1, Model2, ...

In views.py I have these imports:

from api.serializers import NotificationSerializer
from api.models import Model1, Model2, ...

Everything works fine until now. But after adding

from api.serializers import NotificationSerializer

in models.py, django starts complaining when I start the dev server:

File ".../api/serializers.py", line 3, in <module>
from api.models import Model1, Model2,...
ImportError: cannot import name Model1

I know that there must be a problem with the python import paths, but I can't figure it out.

Can you post all of the import section of your `serializers.py` file please? — jape, Jan 18 '17 at 18:23
why do you want to import a serializer in you models ? that is a circular dependency — maazza, Jan 18 '17 at 18:26
You are trying to import a function from a module which hasn't loaded yet. http://stackoverflow.com/a/746067/3142347 — renno, Jan 18 '17 at 18:32

score 0 · Answer 1 · answered Jan 18 '17 at 18:53

0

This would cause a circular import, since serializers.py imports models.py, and vise versa.

How to resolve this depends on what NotificationSerializer does. If it does not use the models, you might consider moving it to a utils file.

answered Jan 18 '17 at 18:53

bear

1 Answers1