Prevent circular import issues with celery.

aplus/__init__.py

@@ -1,4 +1,4 @@
-from .celery import app as celery_app
+from .celery_aplus import app as celery_app
 
 __version__ = '1.28.0'
 """The version of the A-plus platform."""

exercise/submission_models.py

@@ -31,7 +31,7 @@
 from lib.models import UrlMixin
 from lti_tool.utils import has_lti_access_to_course
 from userprofile.models import UserProfile
-from aplus.celery import retry_submissions
+from aplus.celery_aplus import retry_submissions
 from . import exercise_models
 from .exercise_models import LearningObjectProto
 

exercise/tasks.py

@@ -1,7 +1,7 @@
 import logging
 from time import sleep
 
-from aplus.celery import app
+from aplus.celery_aplus import app
 from .exercise_models import BaseExercise, ExerciseTask
 from .submission_models import Submission