import trio import tractor async def key_error(): "Raise a ``NameError``" return {}['doggy'] async def main(): """Root dies """ async with tractor.open_nursery( debug_mode=True, loglevel='debug' ) as n: # spawn both actors portal = await n.run_in_actor(key_error) # XXX: originally a bug causes by this # where root would enter debugger even # though child should have it locked. with trio.fail_after(1): await trio.Event().wait() if __name__ == '__main__': trio.run(main)