anchor.diff:  
     propagatedBuildInputs = [
       appdirs
  +    certifi
       importlib-metadata
       pyee
       tqdm
  
positive.code:     owner = pname;
      repo = pname;
      rev = version;
      sha256 = "sha256-mMFQp8GMjKUc3yyB4c8Tgxut7LkMFa2cySO3iSA/aI4=";
    };
  
    nativeBuildInputs = [
  
negative.code: 
  buildPythonPackage rec {
    pname = "pyppeteer";
    version = "1.0.2";
    format = "pyproject";
  
    disabled = pythonOlder "3.6";
  