I have tried PyTTS (deprecated) and PyTTSx (the most recommended) and two Google TTS solutions (gTTS and another one by some guy named Hung Truong) but none of them worked under Python 3.4. It seems they haven't been ported to 3.x.
I searched here on StackOverflow and Google, but all the proposed TTS solutions don't work under Python 3. I'm on Windows 7.