anchor.diff:  { lib
  +, aniso8601
   , buildPythonPackage
   , fetchFromGitHub
  -, aniso8601
   , graphql-core
   , graphql-relay
   , promise
  -, pytestCheckHook
   , pytest-asyncio
   , pytest-benchmark
   , pytest-mock
  +, pytestCheckHook
  +, pythonAtLeast
  +, pythonOlder
   , pytz
   , snapshottest
   }:
  
positive.code:     snapshottest
    ];
  
    pytestFlagsArray = [ "--benchmark-disable" ];
  
    disabledTests = [
      # Expects different Exeception classes, but receives none of them
      # https://github.com/graphql-python/graphene/issues/1346
      "test_unexpected_error"
    ];
  
    pythonImportsCheck = [ "graphene" ];
  
    meta = with lib; {
      description = "GraphQL Framework for Python";
  
negative.code: buildPythonPackage rec {
    pname = "graphene";
    version = "3.0.0";
    format = "setuptools";
  
    disabled = pythonOlder "3.7";
  
    src = fetchFromGitHub {
      owner = "graphql-python";
  