anchor.diff:  { lib
   , buildPythonPackage
  -, fetchpatch
   , fetchPypi
   , packaging
   , pytest
  
positive.code: 
    checkInputs = [
      pytestCheckHook
    ];
  
    patches = [
      # Removal of distutils, https://github.com/astropy/pytest-doctestplus/pull/172
      (fetchpatch {
        name = "distutils-removal.patch";
        url = "https://github.com/astropy/pytest-doctestplus/commit/ae2ee14cca0cde0fab355936995fa083529b00ff.patch";
        sha256 = "sha256-uryKV7bWw2oz0glyh2lpGqtDPFvRTo8RmI1N1n15/d4=";
      })
    ];
  
    disabledTests = [
  
negative.code: 
  buildPythonPackage rec {
    pname = "pytest-doctestplus";
    version = "0.12.1";
    format = "setuptools";
  
    disabled = pythonOlder "3.7";
  
    src = fetchPypi {
      inherit pname version;
      hash = "sha256-epeeS+mdkRbgesBmxfANRfOHZ319d5877zDG/6jHkYE=";
    };
  
    nativeBuildInputs = [
  