需要在应用Celery配置时重启python [英] need to restart python while applying Celery config

问题描述

这是一个小故事...

That's a small story...

我遇到了这个错误：

AttributeError：'DisabledBackend'对象没有属性'_get_task_meta_for'

AttributeError: 'DisabledBackend' object has no attribute '_get_task_meta_for'

当更改的tasks.py时，就像Diederik在带有RabbitMQ的Celery：AttributeError：'DisabledBackend'对象没有属性'_get_task_meta_for'

When changed tasks.py, like Diederik said at Celery with RabbitMQ: AttributeError: 'DisabledBackend' object has no attribute '_get_task_meta_for'

app = Celery('tasks', backend='rpc://', broker='amqp://guest@localhost//')

运行它

>>> from tasks import add
>>> result = add.delay(4,50)
>>> result.ready()

再次获得DisabledBackend ......嗯那是什么..

got DisabledBackend again ... hmm what was that..

将代码放入文件run.py并返回True ...

put code to file run.py and it returned True...

from tasks import add
try:
        result = add.delay(1,4)
        print (result.ready())
except:
        print "exept"

我看到如果我在任务导入后调用>>>，在tasks.py发生变化之后添加，它就不会得到更新... ipython的行为是一样的，所以因为我无法理解原因，我建议人们从像~runthis.py这样的脚本调用DEBUG

I see that if I call >>> from tasks import add after tasks.py changed, it doesn't get the updates... That behaviour is the same for ipython, so because of I can't understand the reason, I advice people to DEBUG from scripts like ~runthis.py

很高兴答案会破坏我的想法...

Will be glad for answer which will smash my idea...

推荐答案

如果使用解释器，你需要

If using the interpreter, you need to

reload(tasks)

这会强制重新导入任务模块

this will force reimport tasks module

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