这段代码一直在监听，但是没有响应。起初工作正常，然后停止工作

Question

我创建了一个语音助手，该助手具有Wikipedia搜索，打开浏览器，播放音乐，播放视频，说时间等功能。起初效果不错。现在，它继续监听，但是不响应或不识别命令。基本上，它不起作用。我最近清除了我的临时文件，这能...吗？

import pyttsx3
import datetime, time
import speech_recognition as sr
import wikipedia
import sys
import webbrowser
import os
import random

engine=pyttsx3.init('sapi5')
voices=engine.getProperty('voices')
print(voices[0].id)
engine.setProperty('voices', voices[0].id)

def takeCommand():

    r= sr.Recognizer()
    with sr.Microphone() as source:
        print("Listening....")
        r.pause_threshold = 1
        r.phrase_threshold= 0.3
        audio= r.listen(source)
#return audio

    try:
        print("Recognizing...")
        query=r.recognize_google(audio, language='en-in')
        print(f"User said::  {query.title()}\n")

    except Exception as e:
        speak("Say that again please....")
        return "None"
    return query

def speak(audio):
    engine.say(audio)
    engine.runAndWait()

def wishme():

    hour=int(datetime.datetime.now().hour)
    hour1=datetime.datetime.now().strftime("%H:%M:%S")

    if hour>=4 and hour<12:
        speak("Good morning Vishaall!")
        speak(f"the time is{hour1}")
    elif hour>=12 and hour<18:
        speak("Good afternoon Vishaall!")
        speak(f"the time is{hour1}")
    elif hour>=18 and hour <20:
        speak("good evening Vishaall!")
        speak(f"the time is{hour1}")
    else:
        speak("its late in the night Vishaall!")
        speak(f"the time is{hour1}") 

    speak("myself david... how can i be of assistance?")


if __name__ == "__main__":
    wishme()
    abc=True
    while abc:
        query = takeCommand().lower()
        if "wikipedia" in query:
            speak("searching wikipedia")
            query=query.replace("wikipedia", " ")
            results= wikipedia.summary(query, sentences=2)
            speak("According to wikipedia")
            speak(results)
            print(results)
            sys.exit()

        elif query=='goodbye':
            speak("i will see you later")
            abc=False
            sys.exit()    

        elif 'open google' in query:
            webbrowser.open('google.com')
            sys.exit()

        elif 'open youtube' in query:
            webbrowser.open('youtube.com')
            sys.exit()
        elif 'open github' in query:
            webbrowser.open('github.com')  
            sys.exit()

        elif 'open stackoverflow' in query:
            webbrowser.open('stackoverflow.com')   
            sys.exit()

        elif 'play music' in query:

            music_dir= "F:\\Music"
            songs=os.listdir(music_dir)

            for music in range(0, len(songs)):
                print(f"{music}.{songs[music]}")

            in1=random.randint(0, len(songs)-1)
            os.startfile(os.path.join(music_dir, songs[in1]))
            sys.exit()

        elif 'play movies' in query:
            movie_dir="F:\\MOVIES\\"
            movies=os.listdir(movie_dir)

            for vids in range(0, len(movies)):
                print(f"{vids}.{movies[vids]}")

            in1=random.randint(0, len(movies)-1)
            os.startfile(os.path.join(movie_dir, movies[in1]))    
            sys.exit()

        elif 'open pubg' in query:
            os.startfile("H:\\Program Files\\txgameassistant\\appmarket_2784781\\AppMarket.exe")
            sys.exit()

        elif 'open whatsapp' in query:
            os.startfile('C:\\Program Files\\WindowsApps\\5319275A.WhatsAppDesktop_0.3.1847.0_x64__cv1g1gvanyjgm\\app\\WhatsApp.exe')
            sys.exit()

        elif 'the time' in query:
            hour1= datetime.datetime.now().strftime("%H:%M:%S")
            speak(f"The time is {hour1}\n")
            print(hour1)
            print(time.time())
            sys.exit()