play.py

import socket
import time
import pychromecast
from gtts import gTTS


def get_speaker(ip_addr=None, name=None):
    if ip_addr:
        return pychromecast.Chromecast(str(ip_addr))

    speakers = pychromecast.get_chromecasts()
    if len(speakers) == 0:
        print("No devices are found")
        raise Exception
    if name:
        return next(s for s in speakers if s.device.friendly_name == name)
    return next(speakers)


def speak(text, speaker, lang="en"):
    try:
        tts = gTTS(text=text, lang=lang)
        urls = tts.get_urls()
        if not speaker.is_idle:
            print("Killing current running app")
            speaker.quit_app()
            time.sleep(5)
        speaker.wait()
        speaker.media_controller.play_media(urls[0], "audit/mp3")
        speaker.media_controller.block_until_active()
    except Exception as error:
        print(str(error))
        raise Exception


def check_speaker(speaker, lang):
    try:
        speak(text="OK", speaker=speaker, lang=lang)
        print("You are ready to speak!")
        return True
    except Exception as error:
        print("Try an another ip or name: %s" % (str(error)))
        return False


def prepare_speaker():
    print("Enter language (English: en or Japanese: ja): ", end="")
    lang = input()
    print("Enter Google Home name or IP: ", end="")
    name_or_ip = input()
    try:
        socket.inet_aton(name_or_ip)
        speaker = get_speaker(ip_addr=name_or_ip)
    except socket.error:
        speaker = get_speaker(name=name_or_ip)
    except Exception as error:
        print("Error: %s" % (str(error)))
        raise Exception
    return speaker, lang


def main():
    while True:
        try:
            speaker, lang = prepare_speaker()
        except Exception:
            continue
        if check_speaker(speaker, lang):
            break
        print("Failed to setup. Try again!")

    print("Start typing ...")
    text = ""
    while text != "bye":
        print(">> ", end="")
        text = input()
        if text:
            speak(text, speaker, lang)


if __name__ == "__main__":
    main()