anchor.diff:  
     meta = with stdenv.lib; {
       homepage = https://docs.xfce.org/apps/catfish/start;
  -    description = "A handy file search tool";
  +    description = "Handy file search tool";
       longDescription = ''
         Catfish is a handy file searching tool. The interface is
         intentionally lightweight and simple, using only GTK 3.
  
positive.code: 
  pythonPackages.buildPythonApplication rec {
    majorver = "1.4";
    minorver = "7";
    version = "${majorver}.${minorver}";
    pname = "catfish";
  
    src = fetchurl {
      url = "https://archive.xfce.org/src/apps/${pname}/${majorver}/${pname}-${version}.tar.bz2";
      sha256 = "1s97jb1r07ff40jnz8zianpn1f0c67hssn8ywdi2g7njfb4amjj8";
    };
  
    nativeBuildInputs = [
  
negative.code:     file
      which
      intltool
      gobject-introspection # for setup hook populating GI_TYPELIB_PATH
      wrapGAppsHook
    ];
  
  