discord.py中'Interaction'对象无'edit'属性的AttributeError问题

使用discord.py开发Discord机器人时，调用Interaction对象的edit方法触发AttributeError: 'Interaction' object has no attribute 'edit'错误。已升级discord.py到最新版本，导入模块正确，且代码在其他机器可正常运行。

简化后的Botinfo.py代码 #

import discord
from discord.ext import commands
import time
from main import start_time
from main import emergenymessage

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

    @commands.slash_command(name="botinfo", description="Show information and statistics about the bot.")
    async def stats(self, ctx):
        global message, shard_id
        from main import start_time
        message = await ctx.respond(embed=discord.Embed(colour=0x86DB98, title="Collecting Stats...", description="This should only take a second or two!"))
        end_time = time.time()

        # 此处省略部分代码

        await message.edit(content=f"{emergenymessage}", embed=embed, view=view)

    @commands.Cog.listener()
    async def on_interaction(self, interaction):
        global message, shard_id
        if interaction.custom_id == "reping":
            await interaction.response.defer()

            message = await message.edit(embed=discord.Embed(colour=0x86DB98, title="Collecting Stats...", description="This should only take a second or two!"))

            # 此处省略大量代码

            await message.edit(content=f"{emergenymessage}", embed=embed, view=view)


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

报错信息 #

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/discord/bot.py", line 1114, in invoke_application_command
    await ctx.command.invoke(ctx)
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/discord/commands/core.py", line 375, in invoke
    await injected(ctx)
  File "/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/discord/commands/core.py", line 132, in wrapped
    raise ApplicationCommandInvokeError(exc) from exc
discord.errors.ApplicationCommandInvokeError: Application Command raised an exception: AttributeError: 'Interaction' object has no attribute 'edit'

问题根源是全局变量message被意外污染，导致其指向了Interaction对象而非具备edit方法的InteractionMessage对象。全局变量在跨函数调用时容易被错误赋值，加上on_interaction监听逻辑中未对变量有效性做判断，最终触发报错。

修正步骤：

1. 替换全局变量为Cog的实例变量，避免跨函数的变量干扰
2. 在on_interaction中增加消息对象的有效性判断，防止空对象调用

修正后的代码 #

import discord
from discord.ext import commands
import time
from main import start_time, emergenymessage

class Botinfo(commands.Cog):
    def __init__(self, bot):
        self.bot = bot
        self.botinfo_msg = None  # 用实例变量存储消息对象

    @commands.slash_command(name="botinfo", description="Show information and statistics about the bot.")
    async def stats(self, ctx):
        from main import start_time
        # 将消息对象存入实例变量
        self.botinfo_msg = await ctx.respond(embed=discord.Embed(colour=0x86DB98, title="Collecting Stats...", description="This should only take a second or two!"))
        end_time = time.time()

        # 此处省略部分代码（需确保embed和view已定义）

        await self.botinfo_msg.edit(content=f"{emergenymessage}", embed=embed, view=view)

    @commands.Cog.listener()
    async def on_interaction(self, interaction):
        # 先判断消息对象是否存在，再处理按钮交互
        if interaction.custom_id == "reping" and self.botinfo_msg is not None:
            await interaction.response.defer()

            # 更新实例变量中的消息对象
            self.botinfo_msg = await self.botinfo_msg.edit(embed=discord.Embed(colour=0x86DB98, title="Collecting Stats...", description="This should only take a second or two!"))

            # 此处省略大量代码（需确保embed和view已定义）

            await self.botinfo_msg.edit(content=f"{emergenymessage}", embed=embed, view=view)


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

额外检查项 #

• 执行pip show discord.py确认版本为最新，若不是则重新运行pip install --upgrade discord.py
• 确保reping按钮仅在/botinfo命令触发后才会被点击，避免消息对象为空的情况

内容的提问来源于stack exchange，提问作者EK01