Celery: auto discovery does not find tasks module in app

Question

I have the following setup with a fresh installed celery and django 1.4:

settings.py:

import djcelery
djcelery.setup_loader()

BROKER_HOST = \'localhost         


        

Answer 1

For any one who stumbles here looking for similar problem solution.

In my case it was switching from old module bases INSTALLED_APPS setting to a new AppConfig based configuration.

New applications should avoid default_app_config. Instead they should require the dotted path to the appropriate AppConfig subclass to be configured explicitly in INSTALLED_APPS.

To fix this you should change the way you feed packages to celery, as stated here in the 2248 Celery issue:

from django.apps import apps
app.autodiscover_tasks(lambda: [n.name for n in apps.get_app_configs()]

Instead of the old Celery 3 way:

app.autodiscover_tasks(lambda: settings.INSTALLED_APPS)