how to integrate custom event loop in ipykernel 7.x #1490

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1. ianthomas23 commented on Jan 13, 2026

   

   ianthomas23

   on Jan 13, 2026

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   There is some discussion in #1458, get_shell_stream(self.kernel).flush(limit=1) is probably what you are looking for.
2. ugogon commented on Jan 13, 2026

   

   ugogon

   on Jan 13, 2026

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   Thanks for the quick reply. Unfortunately that does not seem to work.

   Where do I have to call it/what is self?

   My integration is currently pretty basic:

   @ipykernel.eventloops.register_integration('mygui')
   def loop_mygui(kernel):
       last = time.time()
   
       def poll():
           nonlocal last
           now = time.time()
           if now-last > kernel._poll_interval:
               last = now
               loop = asyncio.get_event_loop()
               loop.run_until_complete(kernel.do_one_iteration())
   
       while True:
           [...] # my gui stuff
           poll()

   Can you point me in the right direction? I do not get what the kernel needs to do to process the incoming messages as I currently do not get the whole ipykernel data flow.