anchor.diff:  
   buildPythonPackage rec {
     pname = "markdown-it-py";
  -  version = "1.0.0";
  +  version = "1.1.0";
     format = "pyproject";
   
     disabled = pythonOlder "3.6";
  
positive.code:     owner = "executablebooks";
      repo = pname;
      rev = "v${version}";
      hash = "sha256-GA7P2I8N+i2ISsVgx58zyhrfKMcZ7pL4X9T/trbsr1Y=";
    };
  
    patches = [
      (fetchpatch {
        # :arrow_up: UPGRADE: attrs -> v21 (#165)
        # https://github.com/executablebooks/markdown-it-py/pull/165
        url = "https://github.com/executablebooks/markdown-it-py/commit/78381ffe1a651741594dc93e693b761422512fa2.patch";
        sha256 = "1kxhblpi4sycrs3rv50achr8g0wlgq33abg2acra26l736hlsya1";
      })
    ];
  
    propagatedBuildInputs = [ attrs linkify-it-py ]
      ++ lib.optional (pythonOlder "3.8") typing-extensions;
  
negative.code: { lib
  , buildPythonPackage
  , fetchFromGitHub
  , pytestCheckHook
  , pythonOlder
  , attrs
  