anchor.diff:  
     dontBuild = true;
   
  -  installFlags = [ "prefix=${placeholder "out"}" ];
  +  installFlags = [
  +    "prefix=${placeholder "out"}"
  +  ];
   
  -  propagatedBuildInputs = with pythonPackages; [ pygtk ];
  +  strictDeps = false;
   
  -  meta = {
  +  meta = with stdenv.lib; {
       homepage = http://bleachbit.sourceforge.net;
       description = "A program to clean your computer";
       longDescription = "BleachBit helps you easily clean your computer to free space and maintain privacy.";
  -    license = stdenv.lib.licenses.gpl3;
  -    maintainers = with stdenv.lib.maintainers; [ leonardoce ];
  +    license = licenses.gpl3;
  +    maintainers = with maintainers; [ leonardoce ];
     };
   }
  
positive.code: { stdenv, pythonPackages, fetchurl, gettext }:
  pythonPackages.buildPythonApplication rec {
    pname = "bleachbit";
    version = "3.0";
  
negative.code:     sha256 = "18ns9hms671b4l0189m1m2agprkydnpvyky9q2f5hxf35i9cn67d";
    };
  
    nativeBuildInputs = [
      gettext
      gobject-introspection
      wrapGAppsHook
    ];
  
    buildInputs = [
      glib
      gtk3
      libnotify
    ];
  
    propagatedBuildInputs = with pythonPackages; [
      chardet
      pygobject3
      requests
      scandir
    ];
  
    # Patch the many hardcoded uses of /usr/share/ and /usr/bin
    postPatch = ''
  