celery-django 找不到设置

Question

我有一个 Django 项目，它使用 Celery 来运行异步任务。我正在 Windows XP 计算机上进行开发。

启动我的 Django 服务器 (python manage.py runserver 80) 工作正常，但尝试启动 Celery 守护进程 (python manage.py celeryd start) 失败，并出现以下错误：

导入错误：无法导入设置“src.settings”（是否在 sys.path 上？是否有语法错误？）：没有名为 src.settings 的模块

sys.path 包含“C:\development\” SpaceCorps\src'，所以我不确定为什么它找不到这个模块。

这是启动守护进程的完整输出：

C:\development\SpaceCorps\src>python manage.py celeryd start
[2010-07-23 18:29:31,456: WARNING/MainProcess] ?[1;33mcelery@mike-laptop v2.0.1 is starting.?[0m
[2010-07-23 18:29:31,456: WARNING/MainProcess] ?[1;33mC:\Program Files\Python26\lib\site-packages\celery-2.0.1-py2.6.egg\celery\bin\celeryd.py:206: UserWarning: Using settings.DEBUG leads to a memory leak, never use this setting in a production environment!
  warnings.warn("Using settings.DEBUG leads to a memory leak, "?[0m
[2010-07-23 18:29:31,456: WARNING/MainProcess] ?[1;33mConfiguration ->
    . broker -> amqp://guest@localhost:5672/
    . queues ->
    . celery -> exchange:celery (direct) binding:celery
    . concurrency -> 2
    . loader -> djcelery.loaders.DjangoLoader
    . logfile -> [stderr]@WARNING
    . events -> OFF
    . beat -> OFF?[0m
[2010-07-23 18:29:31,706: WARNING/MainProcess] ?[1;33mcelery@mike-laptop has started.?[0m
Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "C:\Program Files\Python26\lib\multiprocessing\forking.py", line 342, in main
    self = load(from_parent)
  File "C:\Program Files\Python26\lib\pickle.py", line 1370, in load
    return Unpickler(file).load()
  File "C:\Program Files\Python26\lib\pickle.py", line 858, in load
Traceback (most recent call last):
  File "<string>", line 1, in <module>
    dispatch[key](self)
  File "C:\Program Files\Python26\lib\pickle.py", line 1090, in load_global
  File "C:\Program Files\Python26\lib\multiprocessing\forking.py", line 342, in main
    self = load(from_parent)
  File "C:\Program Files\Python26\lib\pickle.py", line 1370, in load
    klass = self.find_class(module, name)
  File "C:\Program Files\Python26\lib\pickle.py", line 1124, in find_class
    return Unpickler(file).load()
  File "C:\Program Files\Python26\lib\pickle.py", line 858, in load
    dispatch[key](self)
  File "C:\Program Files\Python26\lib\pickle.py", line 1090, in load_global
    __import__(module)
  File "C:\Program Files\Python26\lib\site-packages\celery-2.0.1-py2.6.egg\celery\concurrency\processes\__init__.py", line 7, in <module>
    from celery import log
  File "C:\Program Files\Python26\lib\site-packages\celery-2.0.1-py2.6.egg\celery\log.py", line 8, in <module>
    from celery import conf
  File "C:\Program Files\Python26\lib\site-packages\celery-2.0.1-py2.6.egg\celery\conf.py", line 118, in <module>
    ALWAYS_EAGER = _get("CELERY_ALWAYS_EAGER")
  File "C:\Program Files\Python26\lib\site-packages\celery-2.0.1-py2.6.egg\celery\conf.py", line 109, in _get
    value = getattr(settings, alias)
  File "c:\development\django\django\utils\functional.py", line 276, in __getattr__
    self._setup()
  File "c:\development\django\django\conf\__init__.py", line 40, in _setup
    self._wrapped = Settings(settings_module)
  File "c:\development\django\django\conf\__init__.py", line 75, in __init__
    raise ImportError("Could not import settings '%s' (Is it on sys.path? Does it have syntax errors?): %s" % (self.SETTINGS_MODULE, e))
ImportError: Could not import settings 'src.settings' (Is it on sys.path? Does it have syntax errors?): No module named src.settings

Answer 1

显然这是 在 Windows 上运行 Celery。使用 --settings 参数 ala python manage.py celeryd start --settings=settings 就达到了目的。

Answer 2

sys.path 必须包含 'C:\development\SpaceCorps' 而不是 'C:\development\SpaceCorps\src'，
因为他正在寻找 src.settings，而不仅仅是设置。