First, use homeBrew or Scoop to install the packages in [[brew_requirements.txt]]

link to homeBrew (for linux only): brew.sh
command to install homeBrew: /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Second: Create a virtualEnvironment and install the requirements in [[pip_requirements.txt]] you can use the command: pip install -r pip_requirements.txt

Run examples to ensure proper installation: examples are found here: [nameOfVirtualEnv]/share/python-gphoto2/examples/