Question

当我尝试运行该命令时，我总是收到此错误消息：Discord.py 'NoneType' object has no attribute 'send'

import os
import json
import discord
from discord.ext import commands

def get_channel(client, message):
    with open('./data/welcome.json', 'r') as f:
        tchann = json.load(f)
    return tchann[str(message.guild.id)]

class welcome(commands.Cog):

    def __init__(self, client):
        self.client = client

    # Events
    @commands.Cog.listener()
    async def on_ready(self):
        print('Welcome script loading.')

    @commands.Cog.listener()
    async def on_member_join(self, member):
        embed=discord.Embed(title="Yoshino",
            url="http://animeex.nhely.hu/",
            description=f"asd1.",
            color=0x29FF94)

        channel = self.client.get_channel(id=get_channel)

        await channel.send(embed=embed)

    @commands.command()
    async def welcome(self, ctx, channel):
        with open('./data/welcome.json', 'r') as f:
            tchann = json.load(f)

        tchann[str(ctx.guild.id)] = channel

        with open('./data/welcome.json', 'w') as f:
            json.dump(tchann, f, indent=4)

        await ctx.send(f'Channel set: {channel}')

def setup(client):
    client.add_cog(welcome(client))

错误代码：

<块引用>

文件 "C:\Users\NexaHn\AppData\Local\Programs\Python\Python39\lib\site-packages\discord\client.py", 第 343 行，在 _run_event 中 await coro(*args, **kwargs) File "K:\Discord BOT\PythonX\cogs\welcome.py", line 30, in on_member_join 等待 channel.send(embed=embed) AttributeError: 'NoneType' 对象没有属性 'send'

Answer 1

def get_channel(client, message):
    with open('./data/welcome.json', 'r') as f:
        tchann = json.load(f)
    return tchann[str(message.guild.id)]

channel = self.client.get_channel(id=get_channel)

get_channel 是一种方法。它期待一个 int。见：

https://discordpy.readthedocs.io/en/stable/api.html?highlight=wait_for#discord.Client.get_channel

channel = self.client.get_channel(id=123456789) 本来是有效的（假设 ID 123456789 存在）。

Answer 2

错误意味着变量 channel 是 NoneType 或 None。这可能意味着没有 ID 为 get_channel 的频道。您可能希望运行函数 get_channel 而不是将其作为 ID。

Discord.py 'NoneType' 对象没有属性 'send'

2 个答案: