anchor.diff:      exif
       psutil
       pyyaml
  -    requests_oauthlib
  +    requests-oauthlib
     ];
   
  -  buildInputs = [ ffmpeg ];
  +  buildInputs = [
  +    ffmpeg
  +  ];
   
     checkInputs = with python3Packages; [
       pytestCheckHook
  
positive.code: { lib, fetchFromGitHub, python3Packages, ffmpeg }:
  
  python3Packages.buildPythonApplication rec {
    pname = "gphotos-sync";
  
negative.code: 
    meta = with lib; {
      description = "Google Photos and Albums backup with Google Photos Library API";
      homepage = "https://github.com/gilesknap/gphotos-sync";
      license = licenses.mit;
      maintainers = with maintainers; [ dnr ];
    };
  }
  