树莓派pip安装opencv报错，Could not find a version that satisfies the requirement cv2 (from versions: )No mat...

前言

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我在使用pip install opencv-python 时报错

Could not find a version that satisfies the requirement opencv (from versions: ) No matching distribution found for opencv

树莓派的镜像是默认装的镜像，没怎么装过其他东西的。我查看了python的版本，python是2.7版本的，树莓派镜像默认是装好了python2。分析原因，python2版本过久，无法找到满足opencv需求的版本。然后我将python3后安装，发现opencv安装成功。

具体操作

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1.执行 sudo apt-get install python3 命令安装python3

sudo apt-get install python3

 

2.执行 python3 -V 查看 python3是否安装成功

python3 -V

 

3.执行 pip3 install opencv-python

pip3 install opencv-python

 

安装好后如图