anchor.diff:  buildPythonPackage rec {
     pname = "pyatv";
     version = "0.9.6";
  +  format = "setuptools";
   
  -  format = "setuptools";
     disabled = pythonOlder "3.6";
   
     src = fetchFromGitHub {
  
positive.code:     pytestCheckHook
    ];
  
    __darwinAllowLocalNetworking = true;
  
    pythonImportsCheck = [
  
negative.code:     rev = "v${version}";
      sha256 = "0navm7a0k1679kj7nbkbyl7s2q0wq0xmcnizmnvp0arkd5xqmqv1";
    };
  
    propagatedBuildInputs = [
      aiohttp
  