Django 1.11.11 celery 4.3 报错ValueError: not enough values to unpack (expected 3, got 0)

素颜马尾好姑娘i 2022-04-25 10:32 134阅读 0赞

## 背景 ##

最近因项目需要，学习任务队列Celery的用法，跟着官网写Demo，出现如题错误，最终在github的Issues里找到解决办法，记录如下。

## 场景还原 ##

本地环境如下：

*  Windows 10
 *  Python 3.5.2
 *  Celery 4.1.0

celery -A celery\_tasks.main worker -l info  
调用worker的时候报错

\[2019-05-31 14:51:58,768: ERROR/MainProcess\] Task handler raised error: ValueError('not enough values to unpack (expected 3, got 0)',)  
Traceback (most recent call last):  
  File "c:\\users\\django\_1.11.1\\lib\\site-packages\\billiard\\pool.py", line 358, in workloop  
    result = (True, prepare\_result(fun(\*args, \*\*kwargs)))  
  File "c:\\users\\django\_1.11.1\\lib\\site-packages\\celery\\app\\trace.py", line 544, in \_fast\_trace\_task  
    tasks, accept, hostname = \_loc  
ValueError: not enough values to unpack (expected 3, got 0)

解决：  
原网页:Unable to run tasks under Windows

看别人描述大概就是说win10上运行celery4.x就会出现这个问题，解决办法如下,原理未知：

先安装一个\`eventlet

pip3 install eventlet  
  
然后启动worker的时候加一个参数，如下：

celery -A celery\_tasks.main worker -l info -P eventlet  
  
然后就可以正常的调用了。

转自：[https://blog.csdn.net/qq\_30242609/article/details/79047660][https_blog.csdn.net_qq_30242609_article_details_79047660]

[https_blog.csdn.net_qq_30242609_article_details_79047660]: https://blog.csdn.net/qq_30242609/article/details/79047660