如何查看特定用户在语音频道上花费的时间？[Discord.py]

Question

我正在使用此代码检查在特定用户的语音频道上花费的时间

    async def on_voice_state_update(self, member, before, after):
        if member.bot:
            return
        with open('voice_data.json', 'r') as file: 
            voice_data = json.load(file)
        new_user = str(member.id)
        guild_id = str(member.guild.id)
        if new_user not in voice_data[guild_id]:
            voice_data[guild_id][new_user] = {
                "total_time" : 0,
                "join_time" : None} 
        userdata = voice_data[guild_id][new_user]
       
        if(before.channel == None):
            join_time = round(time.time())
            userdata["join_time"] = join_time
        
        elif(str(after.channel.guild.id) != guild_id):
            leave_time = time.time()
            passed_time = leave_time - userdata["join_time"]
            userdata["total_time"] += passed_time
            userdata["join_time"] = None
        with open('voice_data.json', 'w') as update_user_data:
            json.dump(voice_data, update_user_data, indent=4)

但由于某种原因，我收到此属性错误，它在 after.channel 中没有返回任何内容

Ignoring exception in on_voice_state_update
Traceback (most recent call last):
  File "C:\Users\hires\AppData\Roaming\Python\Python39\site-packages\discord\client.py", line 343, in _run_event
    await coro(*args, **kwargs)
  File "d:\Freelance Giveaway Bot\Commands\voice.py", line 28, in on_voice_state_update
    elif(str(after.channel.guild.id) != guild_id):
AttributeError: 'NoneType' object has no attribute 'guild'

{
    "884811895884894218": {
        "555463650358329354": {
            "total_time": 0,
            "join_time": 1639144293
        }
    }
}

这里是voice_data.json的摘录

Answer 1

如果用户离开语音频道，after.channel 可以是None。因此，您应该编写以下内容：

elif after.channel is not None and str(after.channel.guild.id) != guild_id:

代替

elif(str(after.channel.guild.id) != guild_id):

检查after.channel 是否不是None。