$ sudo apt-get install build-essential cmake git pkg-config The pkg-config is likely already installed, but be sure to include it just in case. We’ll be using git to pull down the OpenCV repositories ...
Using cached opencv_python-4.5.3.56-cp39-cp39-macosx_10_15_x86_64.whl (42.6 MB) Collecting numpy>=1.19.3 Using cached numpy-1.21.2-cp39-cp39-macosx_10_9_x86_64.whl (17.0 MB) I get lots of compiler ...