anchor.diff:    };
   
     nativeBuildInputs = [
  -    poetry
  +    poetry-core
     ];
   
     propagatedBuildInputs = [
  
positive.code:     pytestCheckHook
      pytest-check
      markdown
    ];
  
    # The tests need to find and call the installed staticjinja executable
  
negative.code:   pname = "staticjinja";
    version = "4.1.0";
    format = "pyproject";
  
    disabled = pythonOlder "3.6";
  
    # No tests in pypi
    src = fetchFromGitHub {
  