Fails to start on Python 3.13

[carnivorecookies]

When trying to start the server, I get the following errors:

2025-10-15 16:08:30 | 📜 INFO     unifier.core           Loading Unifier extensions...
2025-10-15 16:08:31 | ❕ WARNING  unifier.core           Cache backup file could not be found, skipping restore.
2025-10-15 16:08:31 | 📜 INFO     unifier.core           Registering application commands...
2025-10-15 16:08:31 | 📜 INFO     unifier.revolt.core    Booting Revolt client...
2025-10-15 16:08:31 | ❌ ERROR    unifier.revolt.core    Revolt client failed to boot!
Traceback (most recent call last):
  File "/home/pi/unifier/.venv/lib/python3.13/site-packages/aiohttp/http_parser.py", line 1018, in feed_data
    chunk = self.decompressor.decompress_sync(chunk)
  File "/home/pi/unifier/.venv/lib/python3.13/site-packages/aiohttp/compression_utils.py", line 306, in decompress_sync
    return self._obj.decompress(data)
           ~~~~~~~~~~~~~~~~~~~~^^^^^^
zstandard.backend_c.ZstdError: could not determine content size in frame header

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "aiohttp/_http_parser.pyx", line 761, in aiohttp._http_parser.cb_on_body
  File "/home/pi/unifier/.venv/lib/python3.13/site-packages/aiohttp/http_parser.py", line 1020, in feed_data
    raise ContentEncodingError(
        "Can not decode content-encoding: %s" % self.encoding
    )
aiohttp.http_exceptions.ContentEncodingError: 400, message:
  Can not decode content-encoding: zstd

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

Traceback (most recent call last):
  File "/home/pi/unifier/cogs/bridge_revolt.py", line 2099, in revolt_boot
    await self.bot.revolt_client.start()
  File "/home/pi/unifier/.venv/lib/python3.13/site-packages/revolt/client.py", line 114, in start
    api_info = await self.get_api_info()
               ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/pi/unifier/.venv/lib/python3.13/site-packages/revolt/client.py", line 105, in get_api_info
    text = await resp.text()
           ^^^^^^^^^^^^^^^^^
  File "/home/pi/unifier/.venv/lib/python3.13/site-packages/aiohttp/client_reqrep.py", line 737, in text
    await self.read()
  File "/home/pi/unifier/.venv/lib/python3.13/site-packages/aiohttp/client_reqrep.py", line 695, in read
    self._body = await self.content.read()
                 ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/home/pi/unifier/.venv/lib/python3.13/site-packages/aiohttp/streams.py", line 400, in read
    raise self._exception
aiohttp.client_exceptions.ClientPayloadError: 400, message:
  Can not decode content-encoding: zstd

I'm not sure whether this is an issue with zstandard or if Revolt/Stoat servers changed

[carnivorecookies]

Fixed by downgrading python to 3.12.9

[greeeen-dev]

So it's a Python 3.13 issue...not sure what's going wrong there.

I'll keep this open for reference so I can track this issue when working on Unifier.