Fatal error in launcher: Unable to create process using '"c:\python37\python3.exe" "C:\Python37\Scripts\pip3.exe" install opencv-python'

   

pip3.exe install opencv-python

　　

报错：

Fatal error in launcher: Unable to create process using '"c:\python37\python3.exe"  "C:\Python37\Scripts\pip3.exe" install opencv-python'

　原因：

            安装了多个版本python

   解决方法：

           

 python37 -m pip install  opencv-python