anchor.diff:  
       buildInputs = [ pkgs.glibcLocales ];
   
  -    preCheck = ''
  -      export LC_ALL="en_US.UTF-8"
  -    '';
  +    LC_ALL="en_US.UTF-8";
   
       meta = {
         homepage = http://alastair/python-musicbrainz-ngs;
  
positive.code:       sed -i 's/requests.*"/requests"/' setup.py
      '';
  
      preBuild = ''
        export LC_ALL="en_US.UTF-8"
      '';
  
      postInstall = ''
        mkdir -p $out/lib
  
negative.code: 
      buildInputs = [ pkgs.glibcLocales ];
  
      LC_ALL="en_US.UTF-8";
  
      propagatedBuildInputs = with self; [ six pytz ];
  
  