$ pip install python-voicetext

$ git clone git@github.com:youtalk/python-voicetext.git
$ cd python-voicetext
$ python setup.py install

$ sudo apt-get install python-pyaudio

$ brew install portaudio

$ ipython
>> from voicetext import VoiceText
>> vt = VoiceText('YOUR_API_KEY')
>> vt.speak('こんにちは。')
>> vt.speaker('takeru').emotion('angry').speak('こんばんは。')
>> with open('greet.wav', 'wb') as f:
.... f.write(vt.to_wave('おはよう。'))