anchor.diff:    ];
   
     disabledTests = [
  -    # Lack of uvloop setup through fixtures
  -    "test_create_asyncio_server"
  -    "test_listeners_triggered_async"
  -    "test_tls_options"
  -    # Tests are flaky
  +    # Fails to parse cmdline arguments
  +    "test_dev"
  +    "test_auto_reload"
  +    # OSError: foo
  +    "test_bad_headers"
  +    "test_create_server_trigger_events"
  +    "test_json_body_requests"
  +    "test_missing_startup_raises_exception"
  +    "test_no_body_requests"
  +    "test_oserror_warning"
  +    "test_running_multiple_offset_warning"
  +    "test_streaming_body_requests"
  +    "test_trigger_before_events_create_server"
  +    "test_keep_alive_connection_context"
  +    # Racy tests
       "test_keep_alive_client_timeout"
  -    "test_check_timeouts_request_timeout"
  -    "test_check_timeouts_response_timeout"
  -    "test_reloader_live"
  -    "test_zero_downtime"
  -    # Not working from 21.9.1
  -    "test_create_server_main"
  -    "test_create_server_main_convenience"
  -    "test_debug"
  -    "test_auto_reload"
  -    "test_no_exceptions_when_cancel_pending_request"
  -    "test_ipv6_address_is_not_wrapped"
  -    # Failure of the redirect tests seems to be related to httpx>0.20.0
  -    "test_redirect"
  -    "test_chained_redirect"
  -    "test_unix_connection"
  -    # These appear to be very sensitive to output of commands
  -    "test_access_logs"
  -    "test_auto_reload"
  -    "test_host_port"
  -    "test_no_exceptions_when_cancel_pending_request"
  -    "test_num_workers"
  -    "test_server_run"
  -    "test_version"
  -    # Sensitive comparison of raw HTTP header fails
  -    "test_raw_headers"
  -    # noisy_exceptions sometimes missing from sanic stdout
  -    "test_noisy_exceptions"
  -  ] ++ lib.optionals (stdenv.hostPlatform.system == "aarch64-linux") [
  -    # test fail on aarch64
  -    "test_tls_wrong_options"
  -    "test_cookie_expires"
  -    "test_gunicorn_worker"
  -    "test_gunicorn_worker_no_logs"
  -    "test_gunicorn_worker_with_logs"
     ];
   
     disabledTestPaths = [
  +    # We are not interested in benchmarks
  +    "benchmark/"
       # unable to create async loop
       "test_app.py"
       "test_asgi.py"
  
positive.code: 
  buildPythonPackage rec {
    pname = "sanic";
    version = "21.12.1";
    format = "setuptools";
  
    disabled = pythonOlder "3.7" ||
      pythonAtLeast "3.10"; # see GHSA-7p79-6x2v-5h88
  
    src = fetchFromGitHub {
      owner = "sanic-org";
      repo = pname;
      rev = "v${version}";
      sha256 = "0jyl23q7b7fyqzan97qflkqcvmfpzbxbzv0qgygxasrzh80zx67g";
    };
  
    postPatch = ''
      # Loosen dependency requirements.
      substituteInPlace setup.py \
        --replace "pytest==6.2.5" "pytest" \
        --replace "gunicorn==20.0.4" "gunicorn" \
        --replace "multidict>=5.0,<6.0" "multidict"
  
      sed '/pytest-sanic/d' setup.py
  
      # Patch a request headers test to allow brotli encoding
      # (we build httpx with brotli support, upstream doesn't).
      substituteInPlace tests/test_headers.py \
        --replace "deflate\r\n" "deflate, br\r\n"
    '';
  
    propagatedBuildInputs = [
  
negative.code:     beautifulsoup4
      gunicorn
      pytest-asyncio
      pytestCheckHook
      sanic-testing
      uvicorn
  