在discord.py wait_for 上使用 check() 时出现类型错误

Question

我有一个机器人将打开一个使用 wait_for(reaction_add) 功能的关闭民意调查。问题是，当我检查作者是否做出反应时，我收到了 TypeError。这是命令：

@bot.command()

async def closepoll(ctx):

    if not ctx.author.guild_permissions.mute_members:

        await ctx.send("You cannot use this")

    else:

        await ctx.send("React to the poll I must close")

        def check(m):

            return m.author == ctx.author

        try:

            reaction, user = await bot.wait_for('reaction_add', timeout=120.0, check=check)

        except asyncio.TimeoutError:

            await ctx.send('Did not receive any reaction')

        else:

            message = reaction.message

            if message.content.startswith("Poll:") and str(user) == str(ctx.author):

                await message.edit(content="This poll is now closed.")

            else:

                await ctx.send("That is not a poll")

但我收到错误：

Traceback (most recent call last):

  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/discord/ext/commands/core.py", line 85, in wrapped

    ret = await coro(*args, **kwargs)

  File "hypixel.py", line 138, in closepoll

    except asyncio.TimeoutError:

  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/asyncio/tasks.py", line 483, in wait_for

    return fut.result()

  File "/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/discord/client.py", line 339, in dispatch

    result = condition(*args)

TypeError: check() takes 1 positional argument but 2 were given

The above exception was the direct cause of the following exception:

Answer 1

应该采用的参数数量check取决于您正在等待的事件。反应_add事件有两个参数，但你的函数只有一个。尝试用两个参数定义一个检查函数。例如，文档给出了示例：def check(reaction, user):     return user == message.author and str(reaction.emoji) == '👍'