ValueError: The result of the invoked request is always None

[lonamiwebs]

ValueError: The result of the invoked request is always None

[Lonami]

Did you try commenting out the line I told you?

Edit: Also, I'll revert this change if the suggested fix doesn't work.

[chabanovsky]

@Lonami Could you please point me to the line that I should change? Sorry, I could forget to change it.

[Lonami]

Heh this is the third time 😄

The line is the 235 on mtproto_sender.py, under telethon/network, that is, this one :)

[chabanovsky]

Oops. I rewrote it during the last pull. Now I commented it out. Testing...

[chabanovsky]

Got the following error

WARNING:root:Message ack confirmed a request
WARNING:root:Read RPC error: (RPCError(...), 'A wait of 16 seconds is required.')
Should wait 16s. Sleeping until then.
Exception in thread Updates thread:
Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/threading.py", line 916, in _bootstrap_inner
    self.run()
  File "/Library/Frameworks/Python.framework/Versions/3.6/lib/python3.6/threading.py", line 864, in run
    self._target(*self._args, **self._kwargs)
  File "/development/Telethon/telethon/network/mtproto_sender.py", line 408, in updates_thread_method
    self.send_ping()
  File "/development/Telethon/telethon/network/mtproto_sender.py", line 84, in send_ping
    self.receive(request)
  File "/development/Telethon/telethon/network/mtproto_sender.py", line 138, in receive
    request)
  File "/development/Telethon/telethon/network/mtproto_sender.py", line 221, in process_msg
    return self.handle_container(msg_id, sequence, reader, request)
  File "/development/Telethon/telethon/network/mtproto_sender.py", line 281, in handle_container
    if not self.process_msg(inner_msg_id, sequence, reader, request):
  File "/development/Telethon/telethon/network/mtproto_sender.py", line 243, in process_msg
    return self.handle_update(msg_id, sequence, reader)
  File "/development/Telethon/telethon/network/mtproto_sender.py", line 256, in handle_update
    handler(tlobject)
  File "/development/rudevs/chats/telegram/telegram.py", line 70, in <lambda>
    self.add_update_handler(lambda x: self.update_handler(x, self))
  File "/development/rudevs/chats/telegram/telegram.py", line 175, in update_handler
    lisntener.on_new_message(user, message, channel)
  File "/development/rudevs/chats/telegram/telegram.py", line 157, in on_new_message
    self.sync_telegram()
  File "/development/rudevs/chats/telegram/telegram.py", line 100, in sync_telegram
    self.get_content(channels, self.telegram_on_message_callback)
  File "/development/rudevs/chats/telegram/telegram.py", line 62, in get_content
    entity, limit=self.message_count, min_id=entity.min_id)
  File "/development/Telethon/telethon/telegram_client.py", line 363, in get_message_history
    add_offset=add_offset))
  File "/development/Telethon/telethon/telegram_client.py", line 181, in invoke
    return self.invoke(request, timeout, throw_invalid_dc, tries - 1, expect_result)
  File "/development/Telethon/telethon/telegram_client.py", line 181, in invoke
    return self.invoke(request, timeout, throw_invalid_dc, tries - 1, expect_result)
  File "/development/Telethon/telethon/telegram_client.py", line 181, in invoke
    return self.invoke(request, timeout, throw_invalid_dc, tries - 1, expect_result)
  File "/development/Telethon/telethon/telegram_client.py", line 179, in invoke
    raise ValueError('The result of the invoked request is always None')
ValueError: The result of the invoked request is always None

[Lonami]

This time the error is clear, the main thread did go to sleep after "A wait of 16 seconds is required." was received, but the updates thread did not, I assume the server refused to reply to the ping request or replying a message update? I will add the sleep on the updates thread, revert the last change of retries and ignore the acks…

Edit: By the way @chabanovsky it would be really helpful if you managed to get --telethon-log=DEBUG working. Can you try it with the try_telethon.py? It's strange it's not getting passed to your program, since I use sys.argv to manually check all the arguments passed:

[chabanovsky]

After the last update --telethon-log=DEBUG works for my app too. In the app I do not send anything the server. The app just listens a few channels (I'm going perform some ML/NLP tasks).

[Lonami]

Did this solve after fixing #47?

[chabanovsky]

@Lonami I have not seen this error anymore after I updated to upstream and changed code according your recommendations. It seems it was fixed.

[Lonami]

It seems it was fixed.

Alright then, if you don't mind I will close this issue. Feel free to open it again if the bug reappears, or open a new issue if I introduced new bugs :P thanks for the help!

[chabanovsky]

Thank you for the library and the help!