- this program demonstrates the use of the pyttsx third-party module any message you enter will be spoken out loud by your operating system' text-to-speech capabilities although computer-generated speech is an incredibly complex branch of computer sciencethe pyttsx module provides an easy interface for itmaking this small program suitable for beginners once you've learned how to use the moduleyou can add generated speech to your own programs more information about the pyttsx module can be found at pypi org/project/pyttsx