django сельдерей Получение TypeError: объект 'tuple' не может быть вызван

Question

Я только что установил сельдерей на своей локальной машине (win10) с помощью RabbitMQ и последовали их beginners tutorial. Но я получаю сообщение об ошибке TypeError: 'tuple' object is not callable

src>workon clicknstrip 
(clicknstrip) src>python manage.py celery beat 

celery beat v3.1.18 (Cipater) is starting. 
__ - ... __ -  _ 
Configuration -> 
    . broker -> amqp://guest:**@localhost:5672// 
    . loader -> celery.loaders.app.AppLoader 
    . scheduler -> celery.beat.PersistentScheduler 
    . db -> celerybeat-schedule 
    . logfile -> [stderr]@%INFO 
    . maxinterval -> now (0s) 
[2015-08-13 10:01:13,441: INFO/MainProcess] beat: Starting... 
[2015-08-13 10:01:13,466: WARNING/MainProcess] DB Reset: Account for new __version__ field 
[2015-08-13 10:01:13,470: CRITICAL/MainProcess] beat raised exception <type 'exceptions.TypeError'>: TypeError("'tuple' object is not callable",) 
Traceback (most recent call last): 
    File "clicknstrip\lib\site-packages\celery\apps\beat.py", line 112, in start_scheduler 
    beat.start() 
    File "clicknstrip\lib\site-packages\celery\beat.py", line 454, in start 
    humanize_seconds(self.scheduler.max_interval)) 
    File "clicknstrip\lib\site-packages\kombu\utils\__init__.py", line 322, in __get__ 
    value = obj.__dict__[self.__name__] = self.__get(obj) 
    File "clicknstrip\lib\site-packages\celery\beat.py", line 494, in scheduler 
    return self.get_scheduler() 
    File "clicknstrip\lib\site-packages\celery\beat.py", line 489, in get_scheduler 
    lazy=lazy) 
    File "clicknstrip\lib\site-packages\celery\utils\imports.py", line 53, in instantiate 
    return symbol_by_name(name)(*args, **kwargs) 
    File "clicknstrip\lib\site-packages\celery\beat.py", line 358, in __init__ 
    Scheduler.__init__(self, *args, **kwargs) 
    File "clicknstrip\lib\site-packages\celery\beat.py", line 185, in __init__ 
    self.setup_schedule() 
    File "clicknstrip\lib\site-packages\celery\beat.py", line 406, in setup_schedule 
    self.install_default_entries(self.schedule) 
    File "clicknstrip\lib\site-packages\celery\beat.py", line 190, in install_default_entries 
    not self.app.backend.supports_autoexpire: 
    File "clicknstrip\lib\site-packages\kombu\utils\__init__.py", line 322, in __get__ 
    value = obj.__dict__[self.__name__] = self.__get(obj) 
    File "clicknstrip\lib\site-packages\celery\app\base.py", line 625, in backend 
    return self._get_backend() 
    File "clicknstrip\lib\site-packages\celery\app\base.py", line 444, in _get_backend 
    return backend(app=self, url=url) 
TypeError: 'tuple' object is not callable 

Это мой celery.py

from __future__ import absolute_import 
import os 
from celery import Celery 

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

from django.conf import settings 

app = Celery('clicknstrip') 

# Using a string here means the worker will not have to 
# pickle the object when using Windows. 
app.config_from_object('django.conf:settings') 
app.autodiscover_tasks(lambda: settings.INSTALLED_APPS) 


@app.task(bind=True) 
def debug_task(self): 
    print('Request: {0!r}'.format(self.request)) 

Это мой task.py

from __future__ import absolute_import 

from celery import shared_task 


@shared_task 
def add(x, y): 
    return x + y 


@shared_task 
def mul(x, y): 
    return x * y 


@shared_task 
def xsum(numbers): 
    return sum(numbers) 

Answer 1

Найдено мой вопрос, потому что я добавил дополнительный запятая конец

CELERY_RESULT_BACKEND = 'djcelery.backends.database: DatabaseBackend',