Saya telah menggunakan seledri untuk pertama kalinya sejak beberapa minggu, jadi saya cukup segar untuk tugas antrian. Masalah yang saya hadapi saat ini terkait dengan penggunaan seledri melalui Django dan kesalahan ModuleNotFoundError .

Saya menggunakan Django 1.11 und celery 4.2.0 . File saya adalah sebagai berikut:

seledri_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()

celeryconfig.py

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']

-> aplikasi saya-- __init__.py-- seledri_tasks.py-- celeryconfig.py--> dilihat-- admin_scripts.py

Setelah masuk ke direktori tempat file seledri berada, dan beralih ke virtual env, lalu ketik:

celery -A celery_tasks worker -l info

tetapi HANYA dengan konfigurasi ini di file celery_tasks.py saya:

#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

hanya setelah saya mengkonfigurasi ulang baris kode di atas, saya dapat menggunakan seledri melalui Django, jadi:

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

Jika saya tidak melakukan langkah ini, pesan kesalahan dan konfigurasikan seperti itu tanpa mengubah di tengah jalan yaitu,

app.config_from_object('myapp.celeryconfig', namespace='CELERY') # BEKERJA SAAT DIPANGGIL MELALUI VIEW/DJANGO: Beri tahu instance Celery untuk menggunakan modul celeryconfig

app.config_from_object('celeryconfig', namespace='CELERY') # BEKERJA SAAT DIPANGGIL MELALUI TERMINAL

Kemudian saya menerima kesalahan ini:

[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'

Saya tidak bisa melihat di mana tepatnya saya salah. Sebagai penjelasan singkat untuk tujuan awal saya: Saya ingin mencetak di jendela baru informasi yang diambil dari berbagai tugas, jadi seperti bilah kemajuan tetapi alih-alih persentase, hasilnya seperti yang Anda lihat di Terminal.
Terima kasih.