Linking with "-framework Python" is always a bad idea because you have no control over which version of Python you link with other than by changing global system state (the Current link). Also: include files aren't included using the framework conventions (e.g. we use "#include <Python.h>", not "#include <Python/Python.h>"). I'd prefer to remove the Current link from "from source" installs instead adding them to the py3k installer, that makes is clearer that you are not supposed to use "-framework Python". I'm also not too keen on renaming the Python framework for Python 3.4.