Error when downloading media

[repomaa]

I ran into this issue using telegramircd which uses telethon. I get the following trace for all requests to download media:

Unhandled exception
Traceback (most recent call last):
  File "/usr/lib/python3.6/site-packages/aiohttp/web_protocol.py", line 405, in start
    await resp.prepare(request)
  File "/usr/lib/python3.6/site-packages/aiohttp/web_response.py", line 300, in prepare
    return await self._start(request)
  File "/usr/lib/python3.6/site-packages/aiohttp/web_response.py", line 605, in _start
    return await super()._start(request)
  File "/usr/lib/python3.6/site-packages/aiohttp/web_response.py", line 367, in _start
    await writer.write_headers(status_line, headers)
  File "/usr/lib/python3.6/site-packages/aiohttp/http_writer.py", line 100, in write_headers
    buf = _serialize_headers(status_line, headers)
  File "aiohttp/_http_writer.pyx", line 138, in aiohttp._http_writer._serialize_headers
  File "aiohttp/_http_writer.pyx", line 110, in aiohttp._http_writer.to_str
TypeError: Cannot serialize non-str key None

I'm using telethon version 0.18.3

[Lonami]

I'm using telethon version 0.18.3

I'm not going to support old versions. Furthermore that error is completely outside of the telethon package, so maybe you did something wrong when using aiohttp?

[repomaa]

heh that was quick. alright. i'll look into it

[Lonami]

@GitHubBot helps.