Why does Celery work in Python shell, but not in my Django views? (import problem)

Posted by TIMEX on Stack Overflow See other posts from Stack Overflow or by TIMEX
Published on 2011-01-10T01:39:21Z Indexed on 2011/01/10 1:54 UTC
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Filed under:

python

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django

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unix

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import

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celery

I installed Celery (latest stable version.) I have a directory called /home/myuser/fable/jobs. Inside this directory, I have a file called tasks.py:

from celery.decorators import task
from celery.task import Task

class Submitter(Task):
    def run(self, post, **kwargs):
        return "Yes, it works!!!!!!"

Inside this directory, I also have a file called celeryconfig.py:

BROKER_HOST = "localhost"
BROKER_PORT = 5672
BROKER_USER = "abc"
BROKER_PASSWORD = "xyz"
BROKER_VHOST = "fablemq"

CELERY_RESULT_BACKEND = "amqp"
CELERY_IMPORTS = ("tasks", )

In my /etc/profile, I have these set as my PYTHONPATH:

PYTHONPATH=/home/myuser/fable:/home/myuser/fable/jobs

So I run my Celery worker using the console ($ celeryd --loglevel=INFO), and I try it out. I open the Python console and import the tasks. Then, I run the Submitter.

>>> import fable.jobs.tasks as tasks
>>> s = tasks.Submitter()
>>> s.delay("abc")
<AsyncResult: d70d9732-fb07-4cca-82be-d7912124a987>

Everything works, as you can see in my console

[2011-01-09 17:30:05,766: INFO/MainProcess] Task tasks.Submitter[d70d9732-fb07-4cca-82be-d7912124a987] succeeded in 0.0398268699646s:

But when I go into my Django's views.py and run the exact 3 lines of code as above, I get this:

[2011-01-09 17:25:20,298: ERROR/MainProcess] Unknown task ignored: "Task of kind 'fable.jobs.tasks.Submitter' is not registered, please make sure it's imported.": {'retries': 0, 'task': 'fable.jobs.tasks.Submitter', 'args': ('abc',), 'expires': None, 'eta': None, 'kwargs': {}, 'id': 'eb5c65b4-f352-45c6-96f1-05d3a5329d53'}
Traceback (most recent call last):
  File "/home/myuser/mysite-env/lib/python2.6/site-packages/celery/worker/listener.py", line 321, in receive_message
    eventer=self.event_dispatcher)
  File "/home/myuser/mysite-env/lib/python2.6/site-packages/celery/worker/job.py", line 299, in from_message
    eta=eta, expires=expires)
  File "/home/myuser/mysite-env/lib/python2.6/site-packages/celery/worker/job.py", line 243, in __init__
    self.task = tasks[self.task_name]
  File "/home/myuser/mysite-env/lib/python2.6/site-packages/celery/registry.py", line 63, in __getitem__
    raise self.NotRegistered(str(exc))
NotRegistered: "Task of kind 'fable.jobs.tasks.Submitter' is not registered, please make sure it's imported."

It's weird, because the celeryd client does show that it's registered, when I launch it.

[2011-01-09 17:38:27,446: WARNING/MainProcess]  
Configuration ->
    . broker -> amqp://GOGOme@localhost:5672/fablemq
    . queues ->
        . celery -> exchange:celery (direct) binding:celery
    . concurrency -> 1
    . loader -> celery.loaders.default.Loader
    . logfile -> [stderr]@INFO
    . events -> OFF
    . beat -> OFF
    . tasks ->
        . tasks.Decayer
        . tasks.Submitter

Can someone help?

Developer IT