AI助手执行打开文件/视频操作后代码停止运行求助

我正在开发一款带打开文件、搜索YouTube功能的小型AI助手，但发现执行打开文件或视频的操作后，代码就停了。下面是我的Python代码，还没试过任何解决办法，不知道问题出在哪。

import speech_recognition as sr
import pyttsx3
import pywhatkit
import datetime
import wikipedia
import pyjokes
import webbrowser as wb
import subprocess
import os

listener = sr.Recognizer()
engine = pyttsx3.init()
voices = engine.getProperty('voices')
engine.setProperty('voice', voices[1].id)


def talk(text):
    engine.say(text)
    engine.runAndWait()


def take_command():
    try:
        with sr.Microphone() as source:
            print('listening...')
            voice = listener.listen(source)
            command = listener.recognize_google(voice)
            command = command.lower()
            if 'jarvis' in command:
                command = command.replace('jarvis', '')
                print(command)
    except:
        pass
    return command


def run_jarvis():
    command = take_command()
    if 'play' in command:
        song = command.replace('play', '')
        talk('playing ' + song)
        pywhatkit.playonyt(song)
    elif 'time' in command:
        time = datetime.datetime.now().strftime('%I:%M %p')
        talk('Current time is ' + time)
    elif 'who is' in command:
        person = command.replace('who is', '')
        info = wikipedia.summary(person, 1)
        print(info)
        talk(info)
    elif 'joke' in command:
        talk(pyjokes.get_joke())
    elif 'open twitch' in command:
        talk('opening your twitch')
        wb.open('https://www.twitch.tv/toasted_gg/')
    elif 'search'in command:
        search = command.replace ('search', '')
        pywhatkit.search(search)
    elif 'exit' in command:
        talk("Thanks for giving me your time")
        exit()
    elif 'who made you' in command:
        talk("i was made by 5 8 4 6")
    elif 'open minecraft' in command:
        subprocess.call('C:\Program Files\Feather Launcher\Feather Launcher.exe')
        talk('opening minecraft')
    elif 'open discord' in command:
        os.startfile('')
        talk('opening discord')

    else:
        talk('Please say the command again.')


while True:
    run_jarvis()

核心问题 #

代码停止运行的关键原因是阻塞式调用卡死了程序流程：

• pywhatkit.playonyt()、subprocess.call()这类函数会一直等待外部程序（浏览器、游戏客户端）关闭才会返回，只要程序没关，代码就卡在这一步，没法回到循环继续监听语音命令。
• os.startfile('')是空路径，执行时会直接抛出错误，导致整个程序崩溃终止。

具体修复步骤 #

1. 把阻塞调用改成非阻塞
   • 替换subprocess.call()为subprocess.Popen()，它启动程序后立刻返回，不会等待程序关闭：

     subprocess.Popen(r'C:\Program Files\Feather Launcher\Feather Launcher.exe')
     

     路径前加r前缀，避免反斜杠转义出问题。
   • pywhatkit.playonyt()本身是阻塞的，用线程包装让它在后台运行：

     import threading
     # 在play分支里替换原pywhatkit调用：
     threading.Thread(target=pywhatkit.playonyt, args=(song,)).start()
     

2. 修复Discord的空路径问题
   填上Discord的正确启动路径，比如：

   os.startfile(r'C:\Users\你的用户名\AppData\Local\Discord\Update.exe --processStart Discord.exe')
   

   记得把你的用户名换成实际系统用户名，同样加r前缀。
3. 给run_jarvis加异常捕获
   避免单个命令报错导致整个程序挂掉：

   def run_jarvis():
       try:
           command = take_command()
           # 原来的所有判断逻辑都放在这里面
       except Exception as e:
           print(f"执行错误：{e}")
           talk("刚才执行命令出了点问题，请再说一次")
   

4. 优化take_command的返回值
   语音识别失败时，函数会返回None，后续判断会报错，改成返回空字符串：

   def take_command():
       command = ''
       try:
           with sr.Microphone() as source:
               print('listening...')
               voice = listener.listen(source)
               command = listener.recognize_google(voice)
               command = command.lower()
               if 'jarvis' in command:
                   command = command.replace('jarvis', '')
                   print(command)
       except:
           pass
       return command
   

修复后的完整代码 #

import speech_recognition as sr
import pyttsx3
import pywhatkit
import datetime
import wikipedia
import pyjokes
import webbrowser as wb
import subprocess
import os
import threading

listener = sr.Recognizer()
engine = pyttsx3.init()
voices = engine.getProperty('voices')
engine.setProperty('voice', voices[1].id)


def talk(text):
    engine.say(text)
    engine.runAndWait()


def take_command():
    command = ''
    try:
        with sr.Microphone() as source:
            print('listening...')
            voice = listener.listen(source)
            command = listener.recognize_google(voice)
            command = command.lower()
            if 'jarvis' in command:
                command = command.replace('jarvis', '')
                print(command)
    except:
        pass
    return command


def run_jarvis():
    try:
        command = take_command()
        if 'play' in command:
            song = command.replace('play', '').strip()
            talk(f'playing {song}')
            threading.Thread(target=pywhatkit.playonyt, args=(song,)).start()
        elif 'time' in command:
            time = datetime.datetime.now().strftime('%I:%M %p')
            talk(f'Current time is {time}')
        elif 'who is' in command:
            person = command.replace('who is', '').strip()
            info = wikipedia.summary(person, 1)
            print(info)
            talk(info)
        elif 'joke' in command:
            talk(pyjokes.get_joke())
        elif 'open twitch' in command:
            talk('opening your twitch')
            wb.open('https://www.twitch.tv/toasted_gg/')
        elif 'search' in command:
            search = command.replace('search', '').strip()
            pywhatkit.search(search)
        elif 'exit' in command:
            talk("Thanks for giving me your time")
            exit()
        elif 'who made you' in command:
            talk("i was made by 5 8 4 6")
        elif 'open minecraft' in command:
            subprocess.Popen(r'C:\Program Files\Feather Launcher\Feather Launcher.exe')
            talk('opening minecraft')
        elif 'open discord' in command:
            # 替换成你的Discord实际路径
            os.startfile(r'C:\Users\你的用户名\AppData\Local\Discord\Update.exe --processStart Discord.exe')
            talk('opening discord')
        else:
            if command:
                talk('Please say the command again.')
    except Exception as e:
        print(f"执行错误：{e}")
        talk("刚才执行命令出了点问题，请再说一次")


while True:
    run_jarvis()

内容的提问来源于stack exchange，提问作者GX12