anchor.diff:  , stdenv
   , buildPythonPackage
   , fetchPypi
  +, setuptools
   , pkg-config
   , which
   , cairo
  
positive.code: 
    doCheck = false;
  
    nativeBuildInputs = [ pkg-config which doxygen ]
    ++ (if stdenv.isDarwin then [ wxmac ] else [ wxGTK ]);
  
    buildInputs = [ ncurses libintl ]
  
negative.code: buildPythonPackage rec {
    pname = "wxPython";
    version = "4.0.7.post2";
    format = "other";
  
    src = fetchPypi {
      inherit pname version;
  