anchor.diff:  
     propagatedBuildInputs = with python3.pkgs; [
       pygobject3 libvirt libxml2 requests cdrtools
  -  ];
  -
  -   patches = [
  -     # due to a recent change in setuptools-61, "packages=[]" needs to be included
  -     # this patch can hopefully be removed, once virt-manager has an upstream version bump
  -    (fetchpatch {
  -      name = "fix-for-setuptools-61.patch";
  -      url = "https://github.com/virt-manager/virt-manager/commit/46dc0616308a73d1ce3ccc6d716cf8bbcaac6474.patch";
  -      sha256 = "sha256-/RZG+7Pmd7rmxMZf8Fvg09dUggs2MqXZahfRQ5cLcuM=";
  -    })
     ];
   
     postPatch = ''
  
positive.code:   disabledTests = [
      "testAlterDisk"
      "test_misc_nonpredicatble_generate"
    ];
  
    preCheck = ''
  
negative.code: 
  python3.pkgs.buildPythonApplication rec {
    pname = "virt-manager";
    version = "4.1.0";
  
    src = fetchFromGitHub {
      owner = pname;
      repo = pname;
      rev = "v${version}";
      hash = "sha256-UgZ58WLXq0U3EDt4311kv0kayVU17In4kwnQ+QN1E7A=";
    };
  
    nativeBuildInputs = [
  