django 1.11 与 celery 4.0 和 djcelery 兼容性问题

Question

我目前使用 django 1.11，出于兼容性原因，我被迫使用旧版本的 celery (3.1)。

我想升级到 celery 4.0，因为我们应用程序的另一部分需要更高版本的 celery。

是否存在兼容的 celery、django-celery 和 django 1.11 的组合？文档说 celery 4.0 与 django 1.8 以后的所有版本兼容，但情况似乎并非如此。

例如，当我使用时会发生错误:

python manage.py makemigrations <appname>

这是我收到的错误消息:

Traceback (most recent call last):
File "manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 363, in execute_from_command_line
utility.execute()
File "/usr/local/lib/python2.7/dist-packages/django/core/management/__init__.py", line 337, in execute
django.setup()
File "/usr/local/lib/python2.7/dist-packages/django/__init__.py", line 27, in setup
apps.populate(settings.INSTALLED_APPS)
File "/usr/local/lib/python2.7/dist-packages/django/apps/registry.py", line 108, in populate
app_config.import_models()
File "/usr/local/lib/python2.7/dist-packages/django/apps/config.py", line 202, in import_models
self.models_module = import_module(models_module_name)
File "/usr/lib/python2.7/importlib/__init__.py", line 37, in import_module
__import__(name)
File "/usr/local/lib/python2.7/dist-packages/djcelery/models.py", line 16, in <module>
from . import managers
File "/usr/local/lib/python2.7/dist-packages/djcelery/managers.py", line 18, in <module>
from celery.utils.timeutils import maybe_timedelta
ImportError: No module named timeutils

如果我恢复到 celery 3.1，它就可以工作。

Answer 1

... File "/usr/local/lib/python2.7/dist-packages/djcelery/managers.py", line 18, in ...

您正在使用 django-celery，这是一个库 no longer required since celery 3.1

Previous versions of Celery required a separate library to work with Django, but since 3.1 this is no longer the case. Django is supported out of the box now ...

从 INSTALLED_APPS 中删除 djcelery，按照链接文档查看是否有其他内容需要更新并且它应该可以工作。