anchor.diff:  buildPythonPackage rec {
     pname = "statmake";
     version = "0.4.1";
  +  format = "pyproject";
   
  -  format = "pyproject";
  +  disabled = pythonOlder "3.7";
   
     src = fetchFromGitHub {
       owner = "daltonmaag";
  -    repo = "statmake";
  +    repo = pname;
       rev = "v${version}";
  -    sha256 = "OXhoQAD4LEh80iRUZE2z8sCtWJDv/bSo0bwHbOOPVE0=";
  +    sha256 = "sha256-OXhoQAD4LEh80iRUZE2z8sCtWJDv/bSo0bwHbOOPVE0=";
     };
   
     nativeBuildInputs = [
  
positive.code: { lib
  , buildPythonPackage
  , fetchFromGitHub
  , poetry-core
  , attrs
  , cattrs
  , fonttools
  , fs
  , pytestCheckHook
  , ufo2ft
  , ufoLib2
  }:
  
negative.code:     fonttools
      # required by fonttools[ufo]
      fs
    ] ++ lib.optionals (pythonOlder "3.8") [
      importlib-metadata
    ];
  
    checkInputs = [
  