anchor.diff:  , entrypoint2
   , jeepney
   , mss
  +, pillow
   }:
   
   buildPythonPackage rec {
  
positive.code:   # recursive dependency on pyvirtualdisplay
    doCheck = false;
  
    meta = with lib; {
      description = "python screenshot";
      homepage = "https://github.com/ponty/pyscreenshot";
  
negative.code:   propagatedBuildInputs = [
      EasyProcess
      entrypoint2
      pillow
    ] ++ lib.optionals (isPy3k) [
      jeepney
      mss
  