Threading error when using python-socketio for a few mintutes.

[tristan-f-r]

Describe the bug
Whenever I use python-socketio on a raspberry PI, eventually after a few minutes sending a lot of packets causes a threading error which crashes the bot, which is unacceptable when working with robots.

Exception

Exception in thread Thread-3:
Traceback (most recent call last)
  File "/usr/lib/python3.7/threading.py...
  engineio/client.py, line 367

RuntimeError: can't start new thread

packet queue is empty, aborting

Do note, that this program is sending max 30 packets every second.

[miguelgrinberg]

This has nothing to do with Socket.IO. You are starting too many threads, or you are leaking threads in your application.