通过 discord.File 在 discord.py 中更新嵌入图像

Question

今天我试图通过 discord Embeds 编写一个记忆游戏，但是 discord.File class 并没有像我想象的那样工作。我的目标是每次用户使用不同的图像（来自 PIL 模块）给出正确答案时更新嵌入。经过测试，虽然“temp”变量中的图像本身是正确的并且每次都不同，但通过 discord.File 在嵌入中显示的图像却不是，因为它总是显示有史以来生成的第一张图像（3 位数字） .

我认为您需要先从嵌入中删除图像，然后尝试用新图像替换它，但我不确定如何验证这一点。在显示所需的数字后，它应该通过在旧嵌入上编辑的新嵌入删除自己，但图像“跳”出嵌入并永远停留在它上面。它下面的嵌入不再显示任何图像。

end = False
length = 2
def draw(num):
  img = Image.new("RGB", (250, 50), color = (44, 47, 51))
  d = ImageDraw.Draw(img)
  font = ImageFont.truetype("Fonts/Kollektif.ttf", 25)
  d.text((125, 25), num, font = font, fill = (255, 255, 255), anchor = "mm")
  return img
while not end:
  length += 1
  number = ""
  for i in range(length):
    number += str(randint(1,9))
  with BytesIO() as image_binary:
    temp = draw(number)
    temp.save(image_binary, "PNG")
    image_binary.seek(0)
    file = discord.File(fp = image_binary, filename = "image" + number + ".png")
  embed = discord.Embed(title = "Memory", description = "Memorize this number and write it afterwards!", timestamp = datetime.datetime.utcnow(), color = discord.Color.green())
  embed.set_image(url = "attachment://image" + number + ".png")
  embed.set_footer(text = ctx.author, icon_url = ctx.author.display_avatar.url)
  if length == 3:
    emb = await ctx.send(embed = embed, file = file)
  else:
    await emb.edit(embed = embed)
  await asyncio.sleep(5)
  embed = discord.Embed(title = "Memory", timestamp = datetime.datetime.utcnow(), color = discord.Color.green())
  embed.add_field(name = "Write the number!", value = "Length: " + str(length) + " digits", inline = True)
  embed.set_image(url = None)
  embed.set_footer(text = ctx.author, icon_url = ctx.author.display_avatar.url)
  await emb.edit(embed = embed)
  def check(message):
    return message.author == ctx.author
  msg = await self.bot.wait_for("message", check=check)
  # other stuff

Answer 1

您需要从邮件中删除文件附件本身 (docs here)。以前，附件没有显示，因为你把它放到嵌入中，但编辑后，你必须对附件进行一些处理。

        embed = discord.Embed(title = "Memory", timestamp = datetime.datetime.utcnow(), color = discord.Color.green())
        embed.add_field(name = "Write the number!", value = "Length: " + str(length) + " digits", inline = True)
        await emb.edit(embed = embed, attachments=[])  # remove the image attachment

也不需要在编辑后的嵌入中将图像覆盖到 None - 默认情况下就是这样，而且您也会导致错误。

通过 discord.File 在 discord.py 中更新嵌入图像

Updating image in Embed via discord.File in discord.py

python

discord.py