python - Django 应用程序尚未加载 Celery 任务

Question

下面的错误是什么？我不确定这是我安装的某个应用程序的问题还是我的某个应用程序的问题。以下异常仅在运行 Celery 时生成，即 celery -A demo.apps.wall.tasks worker ，runserver 不会生成任何错误。哪个应用 ios 有问题？

Traceback (most recent call last):
  File "/Users/user/Documents/workspace/demo-api/env/bin/celery", line 11, in <module>
    sys.exit(main())
  File "/Users/user/Documents/workspace/demo-api/env/lib/python3.5/site-packages/celery/__main__.py", line 30, in main
    main()
  File "/Users/user/Documents/workspace/demo-api/env/lib/python3.5/site-packages/celery/bin/celery.py", line 81, in main
    cmd.execute_from_commandline(argv)
  File "/Users/user/Documents/workspace/demo-api/env/lib/python3.5/site-packages/celery/bin/celery.py", line 770, in execute_from_commandline
    super(CeleryCommand, self).execute_from_commandline(argv)))
  File "/Users/user/Documents/workspace/demo-api/env/lib/python3.5/site-packages/celery/bin/base.py", line 309, in execute_from_commandline
    argv = self.setup_app_from_commandline(argv)
  File "/Users/user/Documents/workspace/demo-api/env/lib/python3.5/site-packages/celery/bin/base.py", line 469, in setup_app_from_commandline
    self.app = self.find_app(app)
  File "/Users/user/Documents/workspace/demo-api/env/lib/python3.5/site-packages/celery/bin/base.py", line 489, in find_app
    return find_app(app, symbol_by_name=self.symbol_by_name)
  File "/Users/user/Documents/workspace/demo-api/env/lib/python3.5/site-packages/celery/app/utils.py", line 238, in find_app
    sym = imp(app)
  File "/Users/user/Documents/workspace/demo-api/env/lib/python3.5/site-packages/celery/utils/imports.py", line 101, in import_from_cwd
    return imp(module, package=package)
  File "/Users/user/Documents/workspace/demo-api/env/lib/python3.5/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 986, in _gcd_import
  File "<frozen importlib._bootstrap>", line 969, in _find_and_load
  File "<frozen importlib._bootstrap>", line 958, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 673, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 662, in exec_module
  File "<frozen importlib._bootstrap>", line 222, in _call_with_frames_removed
  File "/Users/user/Documents/workspace/demo-api/demo/apps/Walls/tasks.py", line 14, in <module>
    from demo.apps.Walls.redis_models import WallSchedule, WallBroadcast, UserWalls
  File "/Users/user/Documents/workspace/demo-api/demo/apps/Walls/redis_models.py", line 12, in <module>
    from demo.apps.memberships.models import Membership
  File "/Users/user/Documents/workspace/demo-api/demo/apps/memberships/models.py", line 4, in <module>
    from django.contrib.contenttypes.models import ContentType
  File "/Users/user/Documents/workspace/demo-api/env/lib/python3.5/site-packages/django/contrib/contenttypes/models.py", line 161, in <module>
    class ContentType(models.Model):
  File "/Users/user/Documents/workspace/demo-api/env/lib/python3.5/site-packages/django/db/models/base.py", line 94, in __new__
    app_config = apps.get_containing_app_config(module)
  File "/Users/user/Documents/workspace/demo-api/env/lib/python3.5/site-packages/django/apps/registry.py", line 239, in get_containing_app_config
    self.check_apps_ready()
  File "/Users/user/Documents/workspace/demo-api/env/lib/python3.5/site-packages/django/apps/registry.py", line 124, in check_apps_ready
    raise AppRegistryNotReady("Apps aren't loaded yet.")
django.core.exceptions.AppRegistryNotReady: Apps aren't loaded yet.

运行manage.py check即可。

Answer 1

好的 - 在发布您的 celery 应用程序文件后，我将其与我拥有并尝试运行的进行了比较。 想想 我发现了您的问题 - 看起来您在 celery -A demo.apps.wall.tasks 中调用 tasks.py。

如果您的墙模块包含 celery.py 和 tasks.py - 您应该调用 celery -A demo.apps.wall。

这是我的目录结构，以及我运行的 celery 命令:

django_project
- an_app
- celery_tasks
   - init.py
   - celery_app.py (celery.py in your case)
   - tasks.py

我运行的命令:celery worker -A celery_tasks 来自 django_project 目录。