RemovedInDjango19Warning: Model doesn't declare an explicit app_label

Question

Have gone through

Django 1.9 deprecation warnings app_label

but answers couldn\'t fix my problem, so asking again.

I have an app that is added to IN

Answer 1

You are importing models.py before app configuration run.

To fix it, you could import and configure signals in CatalogConfig.ready method.

like this:

signals.py

def someSignal(sender, **kwargs):
    pass

apps.py

from django.apps import AppConfig
from django.db.models.signals import post_save


class CatalogConfig(AppConfig):
    name = 'catalog'
    verbose_name = 'Catalogue'

    def ready(self):
        from .signals import someSignal
        post_save.connect(
            receiver=someSignal,
            sender=self.get_model('Category')
        )

you may want to check ready method in documentation

Answer 2

I experienced this issue when running tests and it was simply a matter of changing:

from .models import MyModel

to

from apps.myapp.models import MyModel