You should be aware that call to Qgis C/C++ api from Python hold the GIL and may prevent custom python threads  to run.

Le 23/03/2021 à 21:06, Sebastian M. Ernst a écrit :

Hi David,

I suspected this much. In theory, I can move the event loop into a
separate thread [1, 2] - this should allow QGIS' event loop to continue
running and accepting input etc. I am *guessing* that this can be made
work. Question: Has someone around here actually tried it before?

Best regards,
Sebastian


1: https://gist.github.com/lars-tiede/01e5f5a551f29a5f300e
2:
https://docs.python.org/3/library/asyncio-eventloop.html#executing-code-in-thread-or-process-pools


Am 23.03.21 um 20:47 schrieb David Marteau:
Hi,

Asynchronous python code with asyncio assume that you have an ioloop
running in a blocking way in your python code:
that means that no other code (in the same thread) cannot run
concurrently with your async tasks while your loop is running.

David

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