anchor.diff:  
   buildPythonPackage rec {
     pname = "mcstatus";
  -  version = "6.5.0";
  +  version = "7.0.0";
  +  format = "pyproject";
  +
     disabled = pythonOlder "3.6";
   
     src = fetchFromGitHub {
       owner = "Dinnerbone";
       repo = pname;
       rev = "v${version}";
  -    sha256 = "00xi3452lap4zx38msx89vvhrzkzb2dvwis1fcmx24qngj9g3yfr";
  +    sha256 = "sha256-/EoVM3wEiA2suJHxMu2zZktQhO6T9grWcvWuzmUe6V0=";
     };
  +
  +  nativeBuildInputs = [
  +    poetry-core
  +  ];
   
     propagatedBuildInputs = [
       asyncio-dgram
  
positive.code: , dnspython
  , fetchFromGitHub
  , mock
  , pytest-asyncio
  , pytestCheckHook
  , pythonOlder
  
negative.code:     pytestCheckHook
    ];
  
    postPatch = ''
      substituteInPlace pyproject.toml \
        --replace 'asyncio-dgram = "1.2.0"' 'asyncio-dgram = ">=1.2.0"' \
        --replace 'six = "1.14.0"' 'six = ">=1.14.0"' \
        --replace 'click = "7.1.2"' 'click = ">=7.1.2"'
    '';
  
    pythonImportsCheck = [
      "mcstatus"
    ];
  
    meta = with lib; {
      description = "Python library for checking the status of Minecraft servers";
  