anchor.diff:    '';
   
     meta = {
  +    description = "Music tagger and library organizer";
       homepage = http://beets.radbox.org;
  -    description = "Music tagger and library organizer";
  -    license = stdenv.lib.licenses.mit;
  -    maintainers = with stdenv.lib.maintainers; [ iElectric aszlig pjones ];
  +    license = licenses.mit;
  +    maintainers = with maintainers; [ aszlig iElectric pjones ];
     };
   }
  
positive.code: 
  in buildPythonPackage rec {
    name = "beets-${version}";
    version = "1.3.11";
    namePrefix = "";
  
    src = fetchFromGitHub {
      owner = "sampsyo";
      repo = "beets";
      rev = "v${version}";
      sha256 = "16jb1frds9vl40n9hy18x9xipxfzln3ym823vx8jymhv3by8p62m";
    };
  
    propagatedBuildInputs = [
      pythonPackages.enum34
      pythonPackages.munkres
      pythonPackages.musicbrainzngs
      pythonPackages.mutagen
  
negative.code: { stdenv, fetchFromGitHub, writeScript, glibcLocales
  , buildPythonPackage, pythonPackages, python, imagemagick
  
  , enableAcoustid   ? true
  , enableDiscogs    ? true
  