anchor.diff:    meta = {
       description = "GUI test tool and automation framework that uses Accessibility technologies to communicate with desktop applications";
       homepage = "https://gitlab.com/dogtail/dogtail";
  -    license = lib.licenses.gpl2;
  +    license = lib.licenses.gpl2Only;
       maintainers = with lib.maintainers; [ jtojnar ];
     };
   }
  
positive.code: 
  buildPythonPackage {
    pname = "dogtail";
    version = "0.9.10";
  
    # https://gitlab.com/dogtail/dogtail/issues/1
    # src = fetchPypi {
  
negative.code:   # };
    src = fetchurl {
      url = "https://gitlab.com/dogtail/dogtail/raw/released/dogtail-0.9.10.tar.gz";
      sha256 = "EGyxYopupfXPYtTL9mm9ujZorvh8AGaNXVKBPWsGy3c=";
    };
  
    patches = [
  