Django和芹菜4份

Question

我读了this但无法理解。我的技能有限。我尝试了stackoverflow的几个答案，但它们不适用于我正在使用的Celery4

我有tasks.py和pn_list在里面

@shared_task
def pn_list(user_ids: typing.List[int], title, msg, extra: typing.Dict = None):
    ...

当我在serializer中调用这个函数时，我必须使用pn_list.delay(...)调用它。这就是问题所在

尝试：
我已经设置了我的CELERY_TASK_ALWAYS_EAGER=True和CELERY_TASK_EAGER_PROPAGATES=True{}。这在Celery3中工作，但我的版本是4

错误：

 File "/Users/sarit/mein-codes/multy_herr/multy_herr/tweets/api/serializers.py", line 208, in create
    pn_list.delay(tmp_ids, title, msg, notification_msg)
  File "/Users/sarit/.pyenv/versions/multy_herr/lib/python3.7/site-packages/celery/app/task.py", line 427, in delay
    return self.apply_async(args, kwargs)
  File "/Users/sarit/.pyenv/versions/multy_herr/lib/python3.7/site-packages/celery/app/task.py", line 552, in apply_async
    link=link, link_error=link_error, **options)
  File "/Users/sarit/.pyenv/versions/multy_herr/lib/python3.7/site-packages/celery/app/task.py", line 772, in apply
    propagate=throw, app=self._get_app(),
  File "/Users/sarit/.pyenv/versions/multy_herr/lib/python3.7/site-packages/celery/app/trace.py", line 295, in build_tracer
    backend = task.backend
  File "/Users/sarit/.pyenv/versions/multy_herr/lib/python3.7/site-packages/celery/app/task.py", line 1030, in backend
    return self.app.backend
  File "/Users/sarit/.pyenv/versions/multy_herr/lib/python3.7/site-packages/kombu/utils/objects.py", line 44, in __get__
    value = obj.__dict__[self.__name__] = self.__get(obj)
  File "/Users/sarit/.pyenv/versions/multy_herr/lib/python3.7/site-packages/celery/app/base.py", line 1207, in backend
    return self._get_backend()
  File "/Users/sarit/.pyenv/versions/multy_herr/lib/python3.7/site-packages/celery/app/base.py", line 925, in _get_backend
    self.loader)
  File "/Users/sarit/.pyenv/versions/multy_herr/lib/python3.7/site-packages/celery/app/backends.py", line 74, in by_url
    return by_name(backend, loader), url
  File "/Users/sarit/.pyenv/versions/multy_herr/lib/python3.7/site-packages/celery/app/backends.py", line 54, in by_name
    cls = symbol_by_name(backend, aliases)
  File "/Users/sarit/.pyenv/versions/multy_herr/lib/python3.7/site-packages/kombu/utils/imports.py", line 57, in symbol_by_name
    module = imp(module_name, package=package, **kwargs)
  File "/Users/sarit/.pyenv/versions/3.7.3/lib/python3.7/importlib/__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1006, in _gcd_import
  File "<frozen importlib._bootstrap>", line 983, in _find_and_load
  File "<frozen importlib._bootstrap>", line 965, in _find_and_load_unlocked
ModuleNotFoundError: No module named "''"

我的解决方法是if else调用不同的函数。
条件是CELERY_TASK_ALWAYS_EAGER == True如果不调用pn_list.delay(...)，将调用pn_list

如果Django和Celery4有共同的变量来解决这个问题，就像在Celery3中一样，那就太好了

问题：
在viewsets正在使用的serializer中测试pn_list是否有简单的技术