Im trying to do a command that changes the server icon/pfp by getting a URL & sending a "Good." Text when the command ends. So in short, I want my bot to get the URL than changing the server pfp/icon to the specified url/image ex : ",setpfp URL"
My Code:
@bot.command() async def setpfp(ctx,*,icon:typing.Union[bytes,str]): await ctx.guild.edit(icon=icon) await ctx.send("Good.") ` Full TraceBack Error:
Ignoring exception in on_command_error Traceback (most recent call last): File "/home/runner/Kituzomoa/venv/lib/python3.8/site-packages/nextcord/ext/commands/core.py", line 168, in wrapped ret = await coro(*args, **kwargs) File "main.py", line 59, in setpfp await ctx.guild.edit(icon=icon) File "/home/runner/Kituzomoa/venv/lib/python3.8/site-packages/nextcord/guild.py", line 1542, in edit fields['icon'] = utils._bytes_to_base64_data(icon) File "/home/runner/Kituzomoa/venv/lib/python3.8/site-packages/nextcord/utils.py", line 480, in _bytes_to_base64_data mime = _get_mime_type_for_image(data) File "/home/runner/Kituzomoa/venv/lib/python3.8/site-packages/nextcord/utils.py", line 466, in _get_mime_type_for_image if data.startswith(b'\x89\x50\x4E\x47\x0D\x0A\x1A\x0A'): TypeError: startswith first arg must be str or a tuple of str, not bytes The above exception was the direct cause of the following exception: Traceback (most recent call last): File "/home/runner/Kituzomoa/venv/lib/python3.8/site-packages/nextcord/client.py", line 415, in _run_event await coro(*args, **kwargs) File "main.py", line 1787, in on_command_error raise error File "/home/runner/Kituzomoa/venv/lib/python3.8/site-packages/nextcord/ext/commands/bot.py", line 1052, in invoke await ctx.command.invoke(ctx) File "/home/runner/Kituzomoa/venv/lib/python3.8/site-packages/nextcord/ext/commands/core.py", line 933, in invoke await injected(*ctx.args, **ctx.kwargs) File "/home/runner/Kituzomoa/venv/lib/python3.8/site-packages/nextcord/ext/commands/core.py", line 177, in wrapped raise CommandInvokeError(exc) from exc nextcord.ext.commands.errors.CommandInvokeError: Command raised an exception: TypeError: startswith first arg must be str or a tuple of str, not bytes 1 Answer
You have to first download the image from the url and pass it after reading.
Here is how I do it for my bot's avatar. Same goes for guild icons.
for image_record in db_avatars.find(): url = image_record["url"] # create directory file_name = os.path.join( os.path.join(os.getcwd(), "avatars"), url.split("/")[-1] ) # download images res = requests.get(url, stream=True) if res.status_code == 200: file_exists = os.path.exists(file_name) if not file_exists: with open(file_name, "wb") as f: shutil.copyfileobj(res.raw, f) print("Image successfully downloaded: ", file_name) else: print("This image already exists!") else: print("Image Couldn't be retrieved") # read the file and change avatar with open(self.select_random_image_path(), "rb") as file: print(file) new_avatar = file.read() await self.bot.wait_until_ready() await self.bot.user.edit(avatar=new_avatar) print("Avatar changed successfully!") 
