#31560: Circular imports raise AppRegistryNotReady.
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Reporter: ExTexan | Owner: nobody
Type: Bug | Status: closed
Component: Core (Other) | Version: 3.0
Severity: Normal | Resolution: needsinfo
Keywords: | Triage Stage: Unreviewed
Has patch: 0 | Needs documentation: 0
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
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Comment (by Heraldo Lucena):
Replying to [comment:1 felixxm]:
> Thanks for this report, Can you provide a sample project? All my
attempts raise an `ImportError` (even with circular imports in `apps.py`)
I had this problem and managed to debug it right now. It will happen when
Django's app registry imports the app's module added in INSTALLED_APPS and
that module imports, directly or indirectly, a model of the app being
loaded. Reading the docs
[https://docs.djangoproject.com/en/3.0/ref/applications/] there are no
notes warning about it.
**Steps to reproduce**
1. Create a django project and one app
2. Create a Model in app/models.py
3. In {{{ app/__init__.py }}} import the created model
4. Add the app's dotted path to INSTALLED_APPS
5. Try to run with {{{ ./manage.py runserver }}}
You will get the error {{{ django.core.exceptions.AppRegistryNotReady:
Apps aren't loaded yet. }}}
Since it's caused by Django, I think Django should be able to detect it
and output a meaning error message
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Ticket URL: <https://code.djangoproject.com/ticket/31560#comment:3>
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