anchor.diff:    ];
   
     checkInputs = [
  -    black
       codecov
       flake8
       mock
  +    psutil
  +    pytest-cov
       pytest-mock
       pytestCheckHook
  -    pytestcov
       pytestrunner
       responses
     ];
  +
  +  # Exclude tests that requires network features
  +  pytestFlagsArray = [ "--ignore=integration_tests" ];
  +  disabledTests = [ "test_start_raises_an_error_if_rtm_ws_url_is_not_returned" ];
   
     pythonImportsCheck = [ "slack" ];
   
  
positive.code: 
  buildPythonPackage rec {
    pname = "python-slackclient";
    version = "2.5.0";
  
    disabled = !isPy3k;
  
    src = fetchFromGitHub {
      owner  = "slackapi";
      repo   = pname;
      rev    = version;
      sha256 = "1ngj1mivbln19546195k400w9yaw69g0w6is7c75rqwyxr8wgzsk";
    };
  
    propagatedBuildInputs = [
  
negative.code: { lib
  , aiohttp
  , buildPythonPackage
  , codecov
  , fetchFromGitHub
  , flake8
  , isPy3k
  , mock
  , psutil
  , pytest-cov
  , pytest-mock
  , pytestCheckHook
  , pytestrunner
  , requests
  , responses
  