Speech problems Python

Hi Guys
I just started writing for my InMoov python script and behind the language background bell it all the time. what can you do about it?

leftPort = "/dev/cu.usbmodem1A12231"
headPort = leftPort

#starting the InMoov-service
i01 = Runtime.createAndStart("i01", "InMoov")

#starting the mouth
i01.startMouth()
#set a custom voice

i01.setVoice("Laura")