Celery: ModuleNotFoundError:通过终端工作,而不是通过 Django

创建于 2018-07-20  ·  3评论  ·  资料来源: celery/celery

几周以来我第一次使用芹菜,所以我对任务排队很新鲜。 我目前面临的问题与通过 Django 使用 celery 和ModuleNotFoundError错误有关。

我正在使用Django 1.11celery 4.2.0 。 我的文件如下:

celery_tasks.py

from celery import Celery
from celery import task
import os

app = Celery('myapp')                         
#app.config_from_object('myapp.celeryconfig', namespace='CELERY')  # WORKS WHEN CALLED THROUGH VIEW/DJANGO: Tell Celery instance to use celeryconfig module
app.config_from_object('celeryconfig', namespace='CELERY')  # WORKS WHEN CALLED THROUGH TERMINAL

# set the default Django settings module for the 'celery' program.
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'myapp.celeryconfig')

suf = lambda n: "%d%s" % (n, {1: "st", 2: "nd", 3: "rd"}.get(n if n < 20 else n % 10, "th"))
@app.task(name='celery_tasks.fav_doctor')
def fav_doctor():
    """Reads doctor.txt file and prints out fav doctor, then  addsa new
    number to the file"""

    with open('doctor.txt', 'r+') as f:
        for line in f:
            nums = line.rstrip().split()

            print ('The {} doctor is my favorite'.format(suf(int(nums[0]))))

            for num in nums[1:]:
                print ('Wait! The {} doctor is my favorite'.format(suf(int(num))))

            last_num = int(nums[-1])
            new_last_num = last_num + 1

            f.write(str(new_last_num) + ' ')


@app.task(name='celery_tasks.reverse')
def reverse(string):
    return string[::-1]

@app.task(name='celery_tasks.add')
def add(x, y):
    return x+y


if __name__ == '__main__':
    app.start()

芹菜配置文件

from __future__ import absolute_import, unicode_literals
from datetime import timedelta

## List of modules to import when celery starts.
CELERY_IMPORTS = ['celery_tasks',]

## Message Broker (RabbitMQ) settings.
BROKER_URL = 'amqp://'
BROKER_PORT = 5672

## Result store settings.
CELERY_RESULT_BACKEND = 'rpc://' 

## Worker settings
#CELERYD_CONCURRENCY = 1
#CELERYD_TASK_TIME_LIMIT = 20
#CELERYD_LOG_FILE = 'celeryd.log'
#CELERYD_LOG_LEVEL = 'INFO'

## Misc
#CELERY_IGNORE_RESULT = False
CELERY_TASK_SERIALIZER = 'json'
CELERY_RESULT_SERIALIZER = 'json'
CELERY_ACCEPT_CONTENT=['json']
CELERY_TIMEZONE = 'Europe/Berlin'
CELERY_ENABLE_UTC = True

CELERYBEAT_SCHEDULE = {
    'doctor-every-10-seconds': {
        'task': 'celery_tasks.fav_doctor',
        'schedule': timedelta(seconds=3),
    },
}

__init__.py

from .celery_tasks import app as celery_app # Ensures app is always imported when Django starts so that shared_task will use this app.

__all__ = ['celery_app']

--> 我的应用-- __init__.py-- celery_tasks.py-- celeryconfig.py--> 意见-- admin_scripts.py

进入celery文件所在目录,切换到虚拟环境后,输入:

celery -A celery_tasks worker -l info

但仅在我的celery_tasks.py文件中使用此配置:

#app.config_from_object('myapp.celeryconfig', namespace='CELERY')  # WORKS WHEN CALLED THROUGH VIEW/DJANGO: Tell Celery instance to use celeryconfig module
app.config_from_object('celeryconfig', namespace='CELERY')  # WORKS WHEN CALLED THROUGH TERMINAL

只有在我重新配置了上面的代码行之后,我才能通过 Django 使用 celery,所以:

app.config_from_object('myapp.celeryconfig', namespace='CELERY')  # WORKS WHEN CALLED THROUGH VIEW/DJANGO: Tell Celery instance to use celeryconfig module
#app.config_from_object('celeryconfig', namespace='CELERY')  # WORKS WHEN CALLED THROUGH TERMINAL

如果我不做这一步,错误信息和配置就像这样而不会在中途改变,即,

app.config_from_object('myapp.celeryconfig', namespace='CELERY') # WORKS WHEN CALLED THROUGH VIEW/DJANGO:告诉 Celery 实例使用 celeryconfig 模块

app.config_from_object('celeryconfig', namespace='CELERY') # 在通过终端调用时工作

然后我收到这个错误:

[20/Jul/2018 07:03:06] ERROR [django.request:135] Internal Server Error: /myapp/adminscripts/
Traceback (most recent call last):
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/local.py", line 317, in _get_current_object
    return object.__getattribute__(self, '__thing')
AttributeError: 'PromiseProxy' object has no attribute '__thing'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/kombu/utils/objects.py", line 42, in __get__
    return obj.__dict__[self.__name__]
KeyError: 'data'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/loaders/base.py", line 144, in _smart_import
    return imp(path)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/loaders/base.py", line 98, in import_from_cwd
    package=package,
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/utils/imports.py", line 104, in import_from_cwd
    return imp(module, package=package)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/loaders/base.py", line 92, in import_module
    return importlib.import_module(module, package=package)
  File "/Users/my_mbp/anaconda3/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 978, in _gcd_import
  File "<frozen importlib._bootstrap>", line 961, in _find_and_load
  File "<frozen importlib._bootstrap>", line 948, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'celeryconfig'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/django/core/handlers/exception.py", line 41, in inner
    response = get_response(request)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/django/core/handlers/base.py", line 187, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/django/core/handlers/base.py", line 185, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/django/contrib/auth/decorators.py", line 23, in _wrapped_view
    return view_func(request, *args, **kwargs)
  File "/Users/my_mbp/Software/myapp/myappsite/myapp/views/admin_scripts.py", line 56, in admin_script_dashboard
    async_result = add.delay(24, 54) # delay() invokes the Celery, responsible for running this task asynchronously
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/local.py", line 146, in __getattr__
    return getattr(self._get_current_object(), name)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/local.py", line 319, in _get_current_object
    return self.__evaluate__()
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/local.py", line 349, in __evaluate__
    thing = Proxy._get_current_object(self)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/local.py", line 109, in _get_current_object
    return loc(*self.__args, **self.__kwargs)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/app/base.py", line 454, in _task_from_fun
    task.bind(self)  # connects task to this app
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/app/task.py", line 319, in bind
    setattr(cls, attr_name, conf[config_name])
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/utils/collections.py", line 429, in __getitem__
    return getitem(k)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/utils/collections.py", line 278, in __getitem__
    return mapping[_key]
  File "/Users/my_mbp/anaconda3/lib/python3.6/collections/__init__.py", line 989, in __getitem__
    if key in self.data:
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/kombu/utils/objects.py", line 44, in __get__
    value = obj.__dict__[self.__name__] = self.__get(obj)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/app/base.py", line 141, in data
    return self.callback()
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/app/base.py", line 924, in _finalize_pending_conf
    conf = self._conf = self._load_config()
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/app/base.py", line 934, in _load_config
    self.loader.config_from_object(self._config_source)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/loaders/base.py", line 126, in config_from_object
    obj = self._smart_import(obj, imp=self.import_from_cwd)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/loaders/base.py", line 147, in _smart_import
    return symbol_by_name(path, imp=imp)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/kombu/utils/imports.py", line 56, in symbol_by_name
    module = imp(module_name, package=package, **kwargs)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/loaders/base.py", line 98, in import_from_cwd
    package=package,
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/utils/imports.py", line 104, in import_from_cwd
    return imp(module, package=package)
  File "/Users/my_mbp/anaconda3/lib/python3.6/site-packages/celery/loaders/base.py", line 92, in import_module
    return importlib.import_module(module, package=package)
  File "/Users/my_mbp/anaconda3/lib/python3.6/importlib/__init__.py", line 126, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 978, in _gcd_import
  File "<frozen importlib._bootstrap>", line 961, in _find_and_load
  File "<frozen importlib._bootstrap>", line 948, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'celeryconfig'

我看不出我到底哪里出错了。 作为对我最初目标的简短解释:我想在新窗口中打印出从各种任务中检索到的信息,因此类似于进度条,但不是百分比,输出就像您在终端中看到的一样。
谢谢。

所有3条评论

这是你的代码错误而不是芹菜。

请随时让我知道我的代码中的错误在哪里?

@pymatffm你解决了吗? 我有同样的问题

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