Question

我正在尝试创建一个 setprefix 命令，它会更改服务器前缀。但是，我收到以下错误：

    raise TypeError("command_prefix must be plain string, iterable of strings, or callable "
TypeError: command_prefix must be plain string, iterable of strings, or callable returning either of these, not coroutine

我的代码：

<块引用>

主文件

#------importing packages

import keep_alive
import os
import discord
from discord.ext import commands
import pymongo
from pymongo import MongoClient
import asyncio
import motor
import motor.motor_asyncio
import prefixes
from prefixes import Prefixes

### MongoDB Variables ###
mongo_url = os.environ['Mongodb_url']
cluster = motor.motor_asyncio.AsyncIOMotorClient(str(mongo_url))
db = cluster['Database']
collection = db['prefixes']


bot = commands.Bot(command_prefix = Prefixes.setprefix(), case_insensitive=True)

bot.remove_command('help')
my_token = os.environ['Token']

#------When bot is online


@bot.event
async def on_ready():

    #status
    #playing game status

    await bot.change_presence(activity=discord.Game(
        name=f'On {len(bot.guilds)} Servers | -help'))

    print('Bot is Ready')


initial_extensions = ['help', 'math1', 'mod', 'anime', 'prefixes']

if __name__ == '__main__':
    for extension in initial_extensions:
        bot.load_extension(extension)


#ping latency....
@bot.command()
async def ping(ctx):
    await ctx.send(f'Pong\n{round(bot.latency * 1000)}ms')




#------Running the bot
keep_alive.keep_alive()
bot.run(my_token)

<块引用>

前缀齿轮文件

import discord
from discord.ext import commands
import asyncio
import motor
import motor.motor_asyncio
import os


class Prefixes(commands.Cog):
    def __init__(self, bot):
        self.bot = bot


    #custom prefix
    @commands.command()
    @commands.has_permissions(administrator = True)
    async def setprefix(self, ctx, prefix):

        ### MongoDB Variables ###
        mongo_url = os.environ['Mongodb_url']
        cluster = motor.motor_asyncio.AsyncIOMotorClient(str(mongo_url))
        db = cluster['Database']
        collection = db['prefixes']

        guild_id = ctx.guild.id
        server_prefix = prefix

        if (await collection.count_documents({})) == 0:

            prefix_info = {'GuildId': guild_id, 'Prefix': server_prefix}
            await collection.insert_one(prefix_info)

        else:
            prefix_info = {'GuildId': guild_id, 'Prefix': server_prefix}
            await collection.update_one({'GuildId': guild_id}, {'$set': {'Prefix': prefix}})

        await ctx.send(f'My prefix is now {prefix}')

        finding_prefix = await collection.find_one({'Prefix': {'$eq': prefix}})

        view_finding_prefix = finding_prefix.values()
        iterate_view = iter(view_finding_prefix)
        first_value = next(iterate_view)

        self.bot(command_prefix = str(first_value), case_insesitive = True)



def setup(bot):
    bot.add_cog(Prefixes(bot))

我不明白为什么会有 TypeError。我正在使用 motor，因为它支持异步。在 motor documentation 中，它说当使用 find_one() 时，它作为字典给出。这就是为什么我这样做的原因，正如您在上面的代码中看到的：

        finding_prefix = await collection.find_one({'Prefix': {'$eq': prefix}})

        view_finding_prefix = finding_prefix.values()
        iterate_view = iter(view_finding_prefix)
        first_value = next(iterate_view)

        self.bot(command_prefix = str(first_value), case_insesitive = True)

我这样做是为了获得键 Prefix 的第一个值。如果还有其他人可以这样做，请告诉我。

Answer 1

我认为您需要一个数据库来制作自定义前缀代码，因为您需要为机器人所在的每个服务器自定义前缀。

MongoDB 的自定义前缀命令

1 个答案: