anchor.diff:  
   buildPythonPackage rec {
     pname = "funcparserlib";
  -  version = "1.0.0a0";
  +  version = "1.0.0";
     format = "pyproject";
   
     disabled = pythonOlder "3.6";
  
positive.code:   checkInputs = [
      pytestCheckHook
      six
    ];
  
    patches = [
      # Support for poetry-core, https://github.com/vlasovskikh/funcparserlib/pull/73
      (fetchpatch {
        name = "support-poetry-core.patch";
        url = "https://github.com/vlasovskikh/funcparserlib/commit/61ed558fc146b7a30879919325dfa8aae77be556.patch";
        sha256 = "sha256-tqdR3r4/t7RWBYZeAabaN7oYf6VxkVVz006XICX9rYI=";
      })
    ];
  
    pythonImportsCheck = [
  
negative.code:     owner = "vlasovskikh";
      repo = pname;
      rev = version;
      sha256 = "sha256-moWaOzyF/yhDQCLEp7bc0j8wNv7FM7cvvpCwon3j+gI=";
    };
  
    nativeBuildInputs = [
  