烧瓶与芹菜集成



我正在尝试在我的烧瓶示例应用程序中使用芹菜。因为我正在工厂方法中创建实例,所以我无法使用文档中的示例 (http://flask.pocoo.org/docs/0.10/patterns/celery/)

初始化.py

from celery import Celery
from flask import Flask
from config import config

def create_app():
    app = Flask(__name__)
    app.debug = True
    app.config.from_object(config)
    from .main import main as main_blueprint
    app.register_blueprint(main_blueprint)

    return app
def make_celery(app = None):
    app = app or create_app()
    celery = Celery('app', backend=app.config['CELERY_RESULT_BACKEND'], broker=app.config['CELERY_BROKER_URL'])
    celery.conf.update(app.config)
    TaskBase = celery.Task
    class ContextTask(TaskBase):
        abstract = True
        def __call__(self, *args, **kwargs):
            with app.app_context():
                return TaskBase.__call__(self, *args, **kwargs)
    celery.Task = ContextTask
    return celery

tasks.py

from app import make_celery
celery = make_celery()

@celery.task
def add(a, b):
    return a + b

views.py

from flask import render_template
from app.main import main
from ..tasks import add
@main.route('/', methods=['GET', 'POST'])
def index():
    add.delay(5, 3)
    return render_template('index.html')

我收到一个错误:

$  celery -A app.tasks worker
回溯(最近一次调用):  文件"...lib/python3.4/site-packages/celery/app/utils.py",第 229 行,find_app    sym = symbol_by_name(app, imp=imp)  文件"...lib/python3.4/site-packages/celery/bin/base.py",第 488 行,symbol_by_name    返回symbol_by_name(名称,imp=imp)  文件"...lib/python3.4/site-packages/kombu/utils/__init__.py",第 97 行,symbol_by_name    返回 getattr(模块,cls_name) 如果cls_name else 模块属性错误:"模块"对象没有属性"任务"

-A 参数应指向要使用的 Celery 实例,而不是模块 http://docs.celeryproject.org/en/latest/reference/celery.bin.celery.html#cmdoption-celery-a

在这种情况下:

celery -A app.tasks.celery worker

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