anchor.diff: -{ stdenv
  -, lib
  +{ lib
  +, stdenv
  +, async-timeout
   , buildPythonPackage
   , fetchFromGitHub
   , ifaddr
  
positive.code:     "test_launch_and_close_v4_v6"
      "test_launch_and_close_v6_only"
      "test_integration_with_listener_ipv6"
      # Starting with 0.38.7: AssertionError: assert [('add', '_ht..._tcp.local.')]
      "test_service_browser_expire_callbacks"
    ] ++ lib.optionals stdenv.isDarwin [
      "test_lots_of_names"
  
negative.code:     owner = "jstasiak";
      repo = "python-zeroconf";
      rev = version;
      hash = "sha256-R6q5fq8P91q+qhy+lOCuoKUMFBvkKFsKLVCoqIy7Qpk=";
    };
  
    propagatedBuildInputs = [
      async-timeout
      ifaddr
    ];
  
  