anchor.diff:    };
   
     propagatedBuildInputs = [
  -    pythonPackages.enum34
  -    pythonPackages.jellyfish
  -    pythonPackages.munkres
  -    pythonPackages.musicbrainzngs
  -    pythonPackages.mutagen
  -    pythonPackages.pathlib
  -    pythonPackages.pyyaml
  -    pythonPackages.unidecode
  -  ] ++ optional enableAcoustid     pythonPackages.pyacoustid
  +    python2Packages.enum34
  +    python2Packages.jellyfish
  +    python2Packages.munkres
  +    python2Packages.musicbrainzngs
  +    python2Packages.mutagen
  +    python2Packages.pathlib
  +    python2Packages.pyyaml
  +    python2Packages.unidecode
  +  ] ++ optional enableAcoustid     python2Packages.pyacoustid
       ++ optional (enableFetchart
                 || enableEmbyupdate
                 || enableAcousticbrainz)
  -                                   pythonPackages.requests2
  +                                   python2Packages.requests2
       ++ optional enableConvert      ffmpeg
  -    ++ optional enableDiscogs      pythonPackages.discogs_client
  +    ++ optional enableDiscogs      python2Packages.discogs_client
       ++ optional enableKeyfinder    keyfinder-cli
  -    ++ optional enableLastfm       pythonPackages.pylast
  -    ++ optional enableMpd          pythonPackages.mpd
  -    ++ optional enableThumbnails   pythonPackages.pyxdg
  -    ++ optional enableWeb          pythonPackages.flask
  +    ++ optional enableLastfm       python2Packages.pylast
  +    ++ optional enableMpd          python2Packages.mpd
  +    ++ optional enableThumbnails   python2Packages.pyxdg
  +    ++ optional enableWeb          python2Packages.flask
       ++ optional enableAlternatives (import ./alternatives-plugin.nix {
  -      inherit stdenv pythonPackages fetchFromGitHub;
  +      inherit stdenv python2Packages fetchFromGitHub;
       })
       ++ optional enableCopyArtifacts (import ./copyartifacts-plugin.nix {
  -      inherit stdenv pythonPackages fetchFromGitHub;
  +      inherit stdenv python2Packages fetchFromGitHub;
       });
   
  -  buildInputs = with pythonPackages; [
  +  buildInputs = with python2Packages; [
       beautifulsoup4
       imagemagick
       mock
  
positive.code: { stdenv, fetchFromGitHub, writeScript, glibcLocales
  , pythonPackages, imagemagick
  
  , enableAcousticbrainz ? true
  , enableAcoustid       ? true
  
negative.code:   testShell = "${bashInteractive}/bin/bash --norc";
    completion = "${bash-completion}/share/bash-completion/bash_completion";
  
  in python2Packages.buildPythonApplication rec {
    name = "beets-${version}";
    version = "1.3.19";
  
  