assets/installation_checker.py

from tts_service.utils import data_dir
from tts_service.voices import voice_manager


class InstallationError(Exception):
    pass


def check_installation():
    if not voice_manager.voice_names:
        paths = ", ".join(str(p) for p in data_dir("voices").glob("*"))
        raise InstallationError(f"No voice models found, voice dir contents: {paths}")
    print(f"Voices: {', '.join(voice_manager.voice_names)}")