Django, ImportError: cannot import name Celery, possible circular import?

Question

I went through this example here:

http://docs.celeryproject.org/en/latest/django/first-steps-with-django.html

All my tasks are in files called tasks.py.

Answer 1

With Django 1.7.5, Celery 3.1.17, and Python 2.7.6 I found that I was still getting these ImportError: cannot import name Celery. But only when running tests under PyCharm 4.0.4.

I found that a solution was not to rely on from __future__ import absolute_import as described in First Steps with Django. Instead I renamed proj/proj/celery.py to proj/proj/celery_tasks.py and then changed the content of __init__.py to match: from .celery_tasks import app as celery_app. No more multiple instances of files named celery.py to cause import confusion seemed to be a simpler approach.

Answer 2

I have face similar type of issue: from celery import Celery ImportError: cannot import name 'Celery' from 'celery'

Another simple way to solve this: If your package have celery configuration in celery.py this is the reason that it is causing problems. Rename it something like celery_settings.py

Answer 3

Work for me ( some bug after deploy in server ): Remove all *.pyc files from project and restart him.

Answer 4

For someone who want to know what cause this error:
I have meet this problem just now, then I found the problem --- sys.path.
Maybe you add some path to sys.path like me, I add below code in manage.py,

ROOT_PATH = os.path.dirname(os.path.abspath(__file__))
SRC_PATH = os.path.join(ROOT_PATH, 'src')
CONF_PATH = os.path.join(ROOT_PATH, 'conf')

sys.path.insert(0, SRC_PATH)
sys.path.insert(0, CONF_PATH)

so, from celery import Celery would search celery in SRC_PATH and CONF_PATH first, that's the problem.

change to

sys.path.append(SRC_PATH)
sys.path.append(CONF_PATH)

It would search in python's lib and site-packages first. Solved perfectly.