MessageMediaPoll object could not be forwarded

[aahnik]

Checklist

• [x] The error is in the library's code, and not in my own.
• [x] I have searched for this issue before posting it and there isn't a duplicate.

related to https://github.com/aahnik/tgcf/issues/50

Code that caused the issue

client.send_message() caused it. The message had a poll object.

Traceback

File "/data/data/com.termux/files/usr/lib/python3.9/site-packages/tgcf/utils.py", line 8, in send_message
    return await client.send_message(*args)
  File "/data/data/com.termux/files/usr/lib/python3.9/site-packages/telethon/client/messages.py", line 782, in send_message
    return await self.send_file(
  File "/data/data/com.termux/files/usr/lib/python3.9/site-packages/telethon/client/uploads.py", line 386, in send_file
    raise TypeError('Cannot use {!r} as file'.format(file))
TypeError: Cannot use <telethon.tl.types.MessageMediaPoll object at 0x713713a700> as file

---

This error was found while running my program on Termux. (android)

I did not find this error on my computer (Ubuntu 20.04)

python version 3.9 used.

telethon version 1.21.1

[Lonami]

You cannot resend copies of polls because all the data isn't known until you actually choose an option. While it could work then, it's strange it would "works sometimes but not others", so closing.

[aahnik]

@Lonami, after little more experimentation,

• problem has nothing to do with termux
• forward always succeeds on every platform, for a poll
• but if the poll is in quiz mode it always fails, on every platform

a poll in quiz mode can be forwarded by hand in the telegram app. so why can't it be forwarded programmatically?

I think it is some bug with Telethon.

https://github.com/LonamiWebs/Telethon/blob/b2c26a53efe25110d32aef7d0f675089d8d1a77b/telethon/client/uploads.py#L385-L386

seems like a poll with quiz mode is not supported in telethon

[Lonami]

Yes, you can forward polls just fine (forward_messages). What you can't do is resend them as copies reliably (send_message).