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.ptyprocess
      pythonPackages.pycairo
      hicolor-icon-theme
    ];
  
    propagatedBuildInputs = [
      pythonPackages.pygobject3
      pythonPackages.pexpect
      xdg_utils
  
negative.code:     file
      which
      intltool
      gobject-introspection # for setup hook populating GI_TYPELIB_PATH
      wrapGAppsHook
    ];
  
  