Django celery register periodic task - django

Question

I'm using Celery 4.4 with Django 2.2
I have to create a Periodic Task, I'm extending PeriodicTask ask as
from celery.schedules import crontab
from celery.task import PeriodicTask
class IncompleteOrderHandler(PeriodicTask):
run_every = crontab(
minute='*/{}'.format(getattr(settings, 'INCOMPLETE_ORDER_HANDLER_PULSE', 5))
)
def run(self, *args, **kwargs):
# Task definition
eligible_users, slot_begin, slot_end = self.get_users_in_last_slot()
map(lambda user: self.process_user(user, slot_begin, slot_end), eligible_users)
Earlier to register the above task, I used to call
from celery.registry import tasks
tasks.register(IncompleteOrderHandler)
But now there is no registry module in the celery. How can I register the above periodic task?

Answer 1

I had the same problem with class based celery tasks. This has to works, but it doesn't!
Accidentally, my problem solved by every one on these two changes:
I import one of the class based tasks at tasks.py in viewsets.py, and suddenly i figured out that after doing that, celery found all of the tasks at tasks.py.
This was my base celery setting file:
from __future__ import absolute_import
import os
from celery import Celery
from django.conf import settings
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'picha.settings')
app = Celery('picha')
app.config_from_object('django.conf:settings')
app.autodiscover_tasks(lambda: settings.INSTALLED_APPS)
I changed the last line to app.autodiscover_tasks(lambda:
settings.CELERY_TASKS) and add CELERY_TASKS list to settings.py and write all
tasks.py file paths in it and then celery found tasks.
I hope one of these work for you.