sudo apt update && sudo apt upgrade -y sudo apt install build-essential cmake git pkg-config libjpeg-dev libtiff-dev libpng-dev libavcodec-dev libavformat-dev libswscale-dev libv4l-dev libxvidcore-dev ...
A cv2 import statement has pytest-cov looking for two source files in cwd instead of in site-packages/cv2. So two warnings are issued, because coverage doesn't find config.py and config-3.py. This ...