python - RemovedInDjango19Warning: Model doesn't declare an explicit app_label -

have gone through

django 1.9 deprecation warnings app_label

but answers couldn't fix problem, asking again.

i have app added installed_apps in settings.

when ever run manage.py runserver, warning,

[trimmed path project]/catalog/models.py:9: removedindjango19warning: model class catalog.models.category doesn't declare explicit app_label , either isn't in application in installed_apps or else imported before application loaded. no longer supported in django 1.9.   class category(models.model): 

the code app,

signals.py

from django.db.models.signals import post_save django.dispatch import receiver models import category  @receiver(post_save, sender=category) def somesignal(sender, **kwargs):     pass 

apps.py

from django.apps import appconfig  class catalogconfig(appconfig):     name = 'catalog'     verbose_name = 'catalogue' 

init.py

import signals  default_app_config = 'catalog.apps.whosconfig' 

django version 1.8.2 on python 2.7.8

you importing models.py before app configuration run.

to fix it, import , configure signals in catalogconfig.ready method.

like this:

signals.py

def somesignal(sender, **kwargs):     pass 

apps.py

from django.apps import appconfig django.db.models.signals import post_save   class catalogconfig(appconfig):     name = 'catalog'     verbose_name = 'catalogue'      def ready(self):         .signals import somesignal         post_save.connect(             receiver=somesignal,             sender=self.get_model('category')         ) 

you may want check ready method in documentation