anchor.diff:      export HOME=$(mktemp -d)
     '';
   
  -  # disable tests depending on network connection
  -  disabledTests = [ "test_develop" "test_install" ];
  +  disabledTests = [
  +    # disable tests depending on network connection
  +    "test_develop"
  +    "test_install"
  +    # Avoid unmainted "mocker" fixture library, and calls to dependent "build" module
  +    "test_build"
  +    "test_npm_build"
  +    "test_create_cmdclass"
  +    "test_ensure_with_skip_npm"
  +  ];
   
     pythonImportsCheck = [ "jupyter_packaging" ];
   
  
positive.code: { lib
  , buildPythonPackage
  , fetchPypi
  , pythonOlder
  , packaging
  , pytestCheckHook
  }:
  
  buildPythonPackage rec {
  
negative.code:   disabled = pythonOlder "3.7";
  
    src = fetchPypi {
      pname = "jupyter_packaging";
      inherit version;
      sha256 = "276c9f884286695f6ab57a017f4bb9dd4df4f5e232b783050d2aa55b6b9ed650";
    };
  
    propagatedBuildInputs = [ deprecation packaging tomlkit ];
  
    checkInputs = [ pytestCheckHook ];
  
  