我尝试用芹菜创建周期性任务,芹菜每天从网上下载一些文件。但是当我尝试在创建任务的文件中导入库时遇到了一个问题。我得到一个错误Received unregistered task of type 'download_data_nist.tasks.download_data'
。如果我删除导入,
任务执行时没有错误。你知道吗
我已经把芹菜放进冰箱了设置.py地址:
from celery.schedules import crontab
CELERY_BROKER_URL = 'amqp://localhost'
CELERY_TIMEZONE = 'CET'
CELERY_BEAT_SCHEDULE = {
'task-number-one': {
'task': 'download_data_nist.tasks.download_data',
'schedule': crontab(minute='*/1'),
},
}
我创造了芹菜.py在我的应用的根文件夹中:
from __future__ import absolute_import, unicode_literals
import os
from celery import Celery
# set the default Django settings module for the 'celery' program.
os.environ.setdefault('DJANGO_SETTINGS_MODULE', 'AplikacijaZaPregledRanljivosti.settings')
app = Celery('AplikacijaZaPregledRanljivosti')
# Using a string here means the worker don't have to serialize
# the configuration object to child processes.
# - namespace='CELERY' means all celery-related configuration keys
# should have a `CELERY_` prefix.
app.config_from_object('django.conf:settings', namespace='CELERY')
# Load task modules from all registered Django app configs.
app.autodiscover_tasks()
@app.task(bind=True)
def debug_task(self):
print('Request: {0!r}'.format(self.request))
我将此代码添加到根文件夹中的init.py:
from __future__ import absolute_import, unicode_literals
# This will make sure the app is always imported when
# Django starts so that shared_task will use this app.
from .celery import app as celery_app
__all__ = ['celery_app']
当我出错时任务.py看起来像这样:
from __future__ import absolute_import, unicode_literals
from celery import task
import json
import re
import requests
import zipfile
from django.conf import settings
@task()
def download_data():
return "Data downloaded"
任务执行时任务.py看起来像这样:
from __future__ import absolute_import, unicode_literals
from celery import task
@task()
def download_data():
return "Data downloaded"
如何导入库而不出错?你知道吗
当您从芹菜工人那里得到
unregistered task
错误时,您需要确定两件事:settings.py
中通知芹菜你的应用程序模块。这还将帮助您了解可能遇到的依赖性错误:requests
等相关问题 更多 >
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