Pyglet with Asyncio

[Chris Norman]

Hi all,

Is there an officially-supported way to use asyncio from within Pyglet?

If not, what's the recommended way to do networking with Pyglet?

Thanks in advance.

Take care,

Chris Norman

[ryannathans]

I have a thread for all async stuff (eg networking) and run pyglet on the main thread (because windows seems to have problems if you run it in another thread - linux is ok with it though).

for example

def run(self):

    with concurrent.futures.ThreadPoolExecutor() as thread_pool:

        #submit networking/async stuff to thread_pool

        try:

            pyglet.app.run()

        finally:

            #tell networking thread to shutdown

            atexit.unregister(concurrent.futures.thread._python_exit) # helps the program exit cleanly if there are blocking reads in threads that will never complete

I don't know if this is the "right way" but it works for me - just keep all the async in one thread and communicate with it in a threadsafe manner

[Chris Norman]

OK, thank you very muc for that.

I need to learn about asyncio before I can even understand that code, but it looks about what I was expecting.

Hopefully if I can learn more about it, I can make some version of pyglet's event loop that'll cooperate nicely, but that'll do in the meantime. Thank you.

Take care,

Chris Norman

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[Matan]

It's interesting that the mere use of threading does not break anything in pyglet's consistency as its own event loop's source reads a little like it assumes that none of its function calls would be preempted ― whereas python threading might be preempting function calls all of the time as it juggles the threads (or does it?). 

Anyone care to comment?