anchor.diff:  
   buildPythonPackage rec {
     pname = "async-upnp-client";
  -  version = "0.19.1";
  +  version = "0.19.2";
     disabled = pythonOlder "3.6";
   
     src = fetchFromGitHub {
       owner = "StevenLooman";
       repo = "async_upnp_client";
       rev = version;
  -    sha256 = "sha256-qxEn9UrQuwRaP7sZlu3854gDI7Gqku055DF8KvsU6p4=";
  +    sha256 = "1v8d2lvxihqasn7866zssys16s0lgxkk6ri2dp4rr7wr8g9ixvdr";
     };
   
     propagatedBuildInputs = [
  
positive.code: { lib
  , aiohttp
  , async-timeout
  , buildPythonPackage
  
negative.code:     "test_subscribe_renew"
      "test_start_server"
      "test_init"
    ] ++ lib.optionals stdenv.isDarwin [
      "test_deferred_callback_url"
    ];
  
    pythonImportsCheck = [ "async_upnp_client" ];
  