anchor.diff:    meta = with lib; {
       description = "IPython: Productive Interactive Computing";
       homepage = "https://ipython.org/";
  +    changelog = "https://github.com/ipython/ipython/blob/${version}/docs/source/whatsnew/version${lib.versions.major version}.rst";
       license = licenses.bsd3;
       maintainers = with maintainers; [ bjornfor fridh ];
     };
  
positive.code: , pythonOlder
  
  # Build dependencies
  , glibcLocales
  
  # Runtime dependencies
  , appnope
  
negative.code:     testpath
    ];
  
    disabledTests = [
      # UnboundLocalError: local variable 'child' referenced before assignment
      "test_system_interrupt"
    ] ++ lib.optionals (stdenv.isDarwin) [
      # FileNotFoundError: [Errno 2] No such file or directory: 'pbpaste'
      "test_clipboard_get"
    ];
  