anchor.diff:  
   buildPythonPackage rec {
     pname = "uvloop";
  -  version = "0.16.0";
  +  version = "0.17.0";
  +  format = "setuptools";
     disabled = pythonOlder "3.7";
   
     src = fetchPypi {
       inherit pname version;
  -    sha256 = "f74bc20c7b67d1c27c72601c78cf95be99d5c2cdd4514502b4f3eb0933ff1228";
  +    hash = "sha256-Dd9rr5zxGhoixxSH858Vss9461vefltF+7meip2RueE=";
     };
  +
  +  nativeBuildInputs = [
  +    cython
  +  ];
   
     buildInputs = [
       libuv
  
positive.code: , buildPythonPackage
  , pythonOlder
  , fetchPypi
  , libuv
  , CoreServices
  , ApplicationServices
    # Check Inputs
  , aiohttp
  , psutil
  , pyopenssl
  
negative.code: 
    dontUseSetuptoolsCheck = true;
    checkInputs = [
      pytestCheckHook
      psutil
    ] ++ lib.optionals (pythonOlder "3.11") [
      aiohttp
    ];
  
    LIBUV_CONFIGURE_HOST = stdenv.hostPlatform.config;
  