需要了解更多关于prefixes.json在discord.py中的信息

Question

我的前缀字符串不起作用？主要第13行。有什么解决办法/建议吗？我有一个prefixes.json文件。我该试试什么？我应该使用数据库吗？我可能把message.guild写错了。YT视频

        import discord
        from discord.ext import commands
        import json
        
        
        def get_prefix(client,message):
        
            with open("prefixes.json", "r") as f:
                prefixes = json.load(f)
        
            return prefixes[str(message.guild.id)]
        
        client = commands.Bot(command_prefix= get_prefix)
        client.remove_command("help")
        
        @client.event
        async def on_guild_join(guild):
        
        
            with open("prefixes.json", "r") as f:
                prefixes = json.load(f)
        
            prefixes[str(guild.id)] = ">"
        
            with open("prefixes.json", "w") as f:
                json.dump(prefixes,f)
        
        @client.event
        async def on_ready():
            print("Sir yes sir")
        
        @client.command()
        @commands.has_permissions(administrator = True)
        async def changeprefix(ctx, prefix):
        
            with open("prefixes.json", "r") as f:
                prefixes = json.load(f)
        
            prefixes[str(ctx.guild.id)] = prefix
        
            with open("prefixes.json", "w") as f:
                json.dump(prefixes,f)
        
            await ctx.send(f"The prefix was changed to {prefix}")
        
        
        
        @client.event
        async def on_message(msg):
        
            try:
        
                if msg.mentions[0] == client.user:
        
                    with open("prefixes.json", "r") as f:
                        prefixes = json.load(f)
        
                    pre = prefixes[str(msg.guild.id)] = prefix
                
                    await msg.channel.send(f"My prefix for this server is {pre}")
        
            except:
                pass
        
            await client.process_commands(msg)

此错误：

      File "D:\Discord Bots\8's Server Bot\Bot.py", line 13, in get_prefix
        return prefixes[str(message.guild.id)]
    KeyError: '960030765704417351'

Answer 1

当密钥不在json文件中时，就会发生这种情况。尝试删除并在服务器运行时将机器人添加到服务器中。如果这不起作用，请尝试手动添加该行。如果它仍然不能工作，这意味着get_prefix无法正确地访问文件。

还有另一个事件函数，on_guild_remove，用于删除json文件中的密钥，以防机器人从公会中删除。这里有更多的信息。