anchor.diff:  buildPythonPackage rec {
     pname = "pyppeteer";
     version = "0.2.6";
  +  format = "pyproject";
  +
     disabled = pythonOlder "3.6";
  -  format = "pyproject";
   
     src = fetchFromGitHub {
       owner = pname;
  
positive.code: , appdirs
  , buildPythonPackage
  , fetchFromGitHub
  , poetry-core
  , pyee
  , pytest-xdist
  
negative.code: 
    propagatedBuildInputs = [
      appdirs
      importlib-metadata
      pyee
      tqdm
      urllib3
  