本文转载自:https://blog.csdn.net/weixin_39513374/article/details/81051466
pip install msgpack-python
pip install msgpack
为pyhon安装opencv扩展包出现distributed 1.21.8 requires msgpack, which is not installed.【转】
原文：https://www.cnblogs.com/zzb-Dream-90Time/p/9692030.html