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

Adding the following lines to cloud/celery.py:

import celery
print celery.__file__

gave me the file itself and not the celery module from the library. After renaming celery.py to celeryapp.py and adjusting the imports all errors were gone.

Note:

That leads to a change in starting the worker:

celery worker --app=cloud.celeryapp:app

For those running celery==3.1.2 and getting this error:

TypeError: unpack_from() argument 1 must be string or read-only buffer, not memoryview

Apply the patch mentioned here: https://github.com/celery/celery/issues/1637