Task handler raised error ValueError('not enough values to unpack (expected 3, got 0)',)

# 抛出异常: 
Task handler raised error: ValueError('not enough values to unpack (expected 3, got 0)',)
    
# 问题原因:   
在windows中启动worker, 必须使用eventlet支持

# 解决问题: 
pip install eventlet 
celery -A <mymodule> worker -l info -P eventlet