old_contents: #!/usr/bin/env python
  
  import rospy
  from sound_play.msg import SoundRequest
  from sound_play.libsoundplay import SoundClient
  from std_msgs.msg import String
  
  class ChatbotSpeaker:
    def __init__(self):
      rospy.init_node('chatbot_speaker')
      self._client = SoundClient()
      rospy.Subscriber('chatbot_responses', String, self._response_callback)
      rospy.spin()
  
    def _response_callback(self, data):
      self._client.say(data.data)
  
  def main():
    speaker = ChatbotSpeaker()
  
  if __name__ == '__main__':
    main()
  
new_contents: #!/usr/bin/env python
  
  import os
  import rospy
  from sound_play.msg import SoundRequest
  from sound_play.libsoundplay import SoundClient
  from std_msgs.msg import String
  import urllib
  
  tts_cmd = (
    'wget -q -U "Mozilla/5.0" -O -
    "http://translate.google.com/translate_tts?tl=en-uk&q={}" > /tmp/speech.mp3'
  )
  sox_cmd = 'sox /tmp/speech.mp3 /tmp/speech.wav'
  
  class ChatbotSpeaker:
    def __init__(self):
      rospy.init_node('chatbot_speaker')
      self._client = SoundClient()
      rospy.Subscriber('chatbot_responses', String, self._response_callback)
      rospy.spin()
  
    def _response_callback(self, data):
      query = urllib.quote(data.data)
      os.system(tts_cmd.format(query))
      os.system(sox_cmd)
      self._client.playWave('/tmp/speech.wav')
  
  def main():
    speaker = ChatbotSpeaker()
  
  if __name__ == '__main__':
    main()
  
subject: Use Google Translate API to get a female TTS