Question

所以，我正在为我的 Discord 服务器制作一个 modmail 机器人。但是当我运行时，bot 可以连接，但是当我在 bot DM 中发送测试消息时，我收到此错误：AttributeError: 'NoneType' object has no attribute 'send'。我在 Arch Linux 上使用 python 3.9.1。这是我的代码：

import discord
from discord.ext.commands import Bot
from discord.ext import commands
import asyncio

client = commands.Bot(command_prefix="!")

@client.event
async def on_ready():
    await client.change_presence(activity=discord.Activity(type=discord.ActivityType.watching, name='for moderation mail'))
    print("Thunderbird is ready")

@client.event
async def on_message(message):
    empty_array = []
    modmail_channel = discord.utils.get(client.get_all_channels(), name="modmail-box")

    if message.author == client.user:
        return
    if str(message.channel.type) == "private":
        if message.attachments != empty_array:
            files = message.attachments
            await modmail_channel.send("<@" + message.author.id + ">: ")

            for file in files:
                await modmail_channel.send(file.url)
        else:
            await modmail_channel.send("<@" + str(message.author.id) + ">: " + message.content)

    elif str(message.channel) == "modmail" and message.content.startswith("<"):
        member_object = message.mentions[0]
        if message.attachments != empty_array:
            files = message.attachments
            await member_object.send("**[MOD]** " + "**" + message.author.display_name + "**: ")

            for file in files:
                await member_object.send(file.url)
        else:
            index = message.content.index(" ")
            string = message.content
            mod_message = string[index:]
            await member_object.send("**[MOD]** " + "**" + message.author.display_name + "**: " + mod_message)

client.run('No leaking here')

Answer 1

我假设错误在这一行：

await member_object.send("**[MOD]** " + "**" + message.author.display_name + "**: ")

并且 member_object 来自这个块：

    elif str(message.channel) == "modmail" and message.content.startswith("<"):
        member_object = message.mentions[0]
        if message.attachments != empty_array:
            files = message.attachments
            await member_object.send("**[MOD]** " + "**" + message.author.display_name + "**: ")

            for file in files:
                await member_object.send(file.url)

您将 member_object 定义为 message.mentions 数组中的第一个元素，但是 NoneType has no attribute 的错误表明该数组中没有元素，因此 member_object 是实际上等于 None 而不是具有 send 方法的类的实例。

您需要检查对该函数的输入，并确保当您的代码到达该块时，它确实具有您期望的属性

我在 discord.py 中编写的 modmail bot 代码有问题

1 个答案: