AttributeError：'_io.BufferedWriter'对象没有属性'startswith'

Question

我正在尝试从一台服务器中提取表情符号并将其添加到我的服务器中。当我到达实际上用client.create_custom_emoji添加表情符号的行时，出现错误。

错误： AttributeError: '_io.BufferedWriter' object has no attribute 'startswith'

完整： Ignoring exception in on_message Traceback (most recent call last): File "C:\Users\bot\AppData\Local\Programs\Python\Python36\lib\site-packages\discord\client.py", line 307, in _run_event yield from getattr(self, event)(*args, **kwargs) File "c:\Users\bot\Desktop\bottest\bot.py", line 2429, in on_message await client.create_custom_emoji(server=message.server, name="mojihere", image=image) File "C:\Users\bot\AppData\Local\Programs\Python\Python36\lib\site-packages\discord\client.py", line 2515, in create_custom_emoji img = utils._bytes_to_base64_data(image) File "C:\Users\bot\AppData\Local\Programs\Python\Python36\lib\site-packages\discord\utils.py", line 247, in _bytes_to_base64_data mime = _get_mime_type_for_image(data) File "C:\Users\bot\AppData\Local\Programs\Python\Python36\lib\site-packages\discord\utils.py", line 238, in _get_mime_type_for_image if data.startswith(b'\x89\x50\x4E\x47\x0D\x0A\x1A\x0A'): AttributeError: '_io.BufferedWriter' object has no attribute 'startswith'

代码：

if message.content.lower().startswith('!take'):
    mojiid = re.findall(r'<a:\w*:\d*>', message.content)
    mojiid = [e.split(':')[2].replace('>', '') for e in mojiid]
    with requests.get("https://cdn.discordapp.com/emojis/{}.gif?v=1".format(mojiid[0])) as r:
        img_data = r.content
    with open('moji.gif', 'wb') as handler:
        handler.write(img_data)
    with open("moji.gif", 'rb') as image:
        await client.create_custom_emoji(server=message.server, name="mojihere", image=image)