Fatal Python Error: Segmentation Fault when running my own voice assistant program

Question

I have an error when i run my custom voice assistant program on Raspberry Pi 3B .This script is made from two programs from examples(assistant_library_demo.py and cloud_speech.py).Consequently the script does the both functions from those examples. This is how the program code looks like:

This is for the voice assistant, that combines both functions of Google voice assistant and Google Cloudspeech API

import argparse
import locale
import logging
import RPi.GPIO as GPIO
from gpiozero import Servo
import signal
import sys
from google.assistant.library.event import EventType
from aiy.assistant import auth_helpers
from aiy.assistant.library import Assistant
from aiy.board import Board, Led
from aiy.cloudspeech import CloudSpeechClient
import aiy.voice.tts


def get_hints(language_code):
    if language_code.startswith("en_"):
        return (
            "turn on the light",
            "turn off the light",
            "blink the light",
            "goodbye",
            "repeat after me",
            "lights on",
            "lights off",
            "minimum",
            "middle",
            "maximum",
        )
    return None


def locale_language():
    language, _ = locale.getdefaultlocale()
    return language


def process_event(led, event):
    logging.basicConfig(level=logging.INFO)
    GPIO.setmode(GPIO.BCM)
    GPIO.setwarnings(False)
    GPIO.setup(24, GPIO.OUT)
    servo = Servo(6)
    parser = argparse.ArgumentParser(description="Assistant service example.")
    parser.add_argument("--language", default=locale_language())
    args = parser.parse_args()
    logging.info("Initializing for language %s...", args.language)
    hints = get_hints(args.language)
    client = CloudSpeechClient()
    logging.info(event)
    text = client.recognize(language_code=args.language, hint_phrases=hints)
    if "lights on" in text:
        GPIO.output(24, GPIO.HIGH)
    elif "lights off" in text:
        GPIO.output(24, GPIO.LOW)
    elif "maximum" in text:
        servo.max()
    elif "minimum" in text:
        servo.min()
    elif "middle" in text:
        servo.mid()
    if event.type == EventType.ON_START_FINISHED:
        led.state = Led.BEACON_DARK  # Ready.
        logging.info('Say "OK, Google" then speak, or press Ctrl+C to quit...')
    elif event.type == EventType.ON_CONVERSATION_TURN_STARTED:
        led.state = Led.ON  # Listening.
    elif event.type == EventType.ON_END_OF_UTTERANCE:
        led.state = Led.PULSE_QUICK  # Thinking.
    elif (
        event.type == EventType.ON_CONVERSATION_TURN_FINISHED
        or event.type == EventType.ON_CONVERSATION_TURN_TIMEOUT
        or event.type == EventType.ON_NO_RESPONSE
    ):
        led.state = Led.BEACON_DARK
    elif (
        event.type == EventType.ON_ASSISTANT_ERROR
        and event.args
        and event.args["is_fatal"]
    ):
        main()


def main():
    credentials = auth_helpers.get_assistant_credentials()
    with Board() as board, Assistant(credentials) as assistant:
        for event in assistant.start():
            process_event(board.led, event)


if name == "main":
    main()

This is how error text looks like: The error text when i run the sketch from python shell:

Backend terminated (returncode: -11) 
Fatal Python error: Segmentation fault

Thread 0x580fe470 (most recent call first): File "/usr/lib/python3.5/threading.py", line 297 in wait File "/usr/lib/python3.5/threading.py", line 549 in wait File "/opt/aiy/projects-python/src/aiy/board.py", line 208 in _run File "/usr/lib/python3.5/threading.py", line 862 in run File "/usr/lib/python3.5/threading.py", line 914 in _bootstrap_inner File "/usr/lib/python3.5/threading.py", line 882 in _bootstrap

Thread 0x76f66640 (most recent call first): File "/usr/local/lib/python3.5/dist-packages-linux-armv7l/google/assistant/library/assistant.py", 
line 114 in exit File "/opt/aiy/projects-python/src/examples/voice/myassistant.py", 
line 96 in main File "/opt/aiy/projects-python/src/examples/voice/myassistant.py",
 line 99 in File "/usr/lib/python3/dist-packages/thonny/backend.py",
 line 1232 in _execute_prepared_user_code File "/usr/lib/python3/dist-packages/thonny/backend.py", 
line 1158 in wrapper File "/usr/lib/python3/dist-packages/thonny/backend.py", 
line 1171 in wrapper File "/usr/lib/python3/dist-packages/thonny/backend.py", 
line 1219 in execute_source File "/usr/lib/python3/dist-packages/thonny/backend.py",
 line 853 in _execute_source File "/usr/lib/python3/dist-packages/thonny/backend.py", 
line 840 in _execute_file File "/usr/lib/python3/dist-packages/thonny/backend.py", 
line 400 in _cmd_Run File "/usr/lib/python3/dist-packages/thonny/backend.py",
line 217 in handle_command File "/usr/lib/python3/dist-packages/thonny/backend.py", 
line 162 in mainloop File "/usr/lib/python3/dist-packages/thonny/backend_launcher.py", 
line 70 in Use 'Stop/Restart' to restart the backend ...

The error text when i run the sketch from terminal: Segmentation fault

Answer 1

Thank everyone for your help, i fixed the problem by rewriting the whole code using different google demos