当用户回复机器人的问题并让机器人嵌入时，是否可以获取图像附件

Question

我正在发出一个命令，当有人输入 !1 时，机器人将发送一个 dm 并要求上传图片，然后机器人将嵌入该图片并将其发送到频道。

这是我目前的代码。

@commands.command(name='1')
async def qwe(self, ctx):
    question = '[Upload image]'
    dm = await ctx.author.create_dm()
    channel = self.client.get_channel()

    embed = discord.Embed(
        description=question,
        colour=0xD5A6BD
    )
    await dm.send(embed=embed)
    await self.client.wait_for('message', check=ctx.author)

    url = ctx.message.attachments
    embed = discord.Embed(
        description='image:',
        colour=0xD5A6BD
    )
    embed.set_image(url=url.url)
    await channel.send(embed=embed)

但是，当我用上传图片回复机器人时出现此错误：

discord.ext.commands.errors.CommandInvokeError:
Command raised an exception: AttributeError: 'list' object has no attribute 'url'

Answer 1

正如您在文档中看到的那样，Message.attachments returns a list of Attachments. You then need to call the url 方法在收到的消息的附件列表的第一个元素上，而不是 ctx.message（这是调用命令的消息） .

@commands.command(name='1')
async def qwe(self, ctx):
    question = '[Upload image]'

    # Sending embed
    embed = discord.Embed(description=question, colour=0xD5A6BD)
    await ctx.author.send(embed=embed)

    # Waiting for user input
    def check(message):
        return isinstance(message.channel, discord.DMChannel) and message.author == ctx.author
    message = await self.client.wait_for('message', check=check)

    # Sending image
    embed = discord.Embed(description='image:', colour=0xD5A6BD)
    attachments = message.attachments
    embed.set_image(url=attachments[0].url)

    await ctx.channel.send(embed=embed)

注意：您不需要调用create_dm方法。

当用户回复机器人的问题并让机器人嵌入时，是否可以获取图像附件

Is it possible to get the image attachment when a user reply to the bot's question and make the bot embed it

python

discord.py

discord.py-rewrite