anchor.diff:    pname = "kubernetes";
     version = "20.13.0";
     format = "setuptools";
  +
     disabled = pythonOlder "3.6";
   
     src = fetchFromGitHub {
  
positive.code: , python-dateutil
  , pyyaml
  , requests
  , requests_oauthlib
  , urllib3
  , websocket-client
  
  
negative.code:     python-dateutil
      pyyaml
      requests
      requests-oauthlib
      urllib3
      websocket-client
    ];
  