anchor.diff:  { lib
   , fetchFromGitHub
   , buildPythonPackage
  +, certifi
   , geckodriver
   , pytestCheckHook
   , pythonOlder
  
positive.code: 
  buildPythonPackage rec {
    pname = "selenium";
    version = "4.5.0";
    disabled = pythonOlder "3.7";
  
    src = fetchFromGitHub {
  
negative.code:   '';
  
    propagatedBuildInputs = [
      certifi
      trio
      trio-websocket
      urllib3
    ] ++ urllib3.optional-dependencies.socks;
  
    checkInputs = [
      pytestCheckHook
  