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That generally works well, but I have a strange problem: Occasionally I get an exception RuntimeError: Event loop is closed:
Traceback (most recent call last):
File "/home/ca/Store/micromamba/envs/std/lib/python3.10/site-packages/ipykernel/iostream.py", line 390, in _watch_pipe_fd
self.write(bts.decode(errors='replace'))
File "/home/ca/Store/micromamba/envs/std/lib/python3.10/site-packages/ipykernel/iostream.py", line 664, in write
self._schedule_flush()
File "/home/ca/Store/micromamba/envs/std/lib/python3.10/site-packages/ipykernel/iostream.py", line 561, in _schedule_flush
self.pub_thread.schedule(_schedule_in_thread)
File "/home/ca/Store/micromamba/envs/std/lib/python3.10/site-packages/ipykernel/iostream.py", line 269, in schedule
f()
File "/home/ca/Store/micromamba/envs/std/lib/python3.10/site-packages/ipykernel/iostream.py", line 559, in _schedule_in_thread
self._io_loop.call_later(self.flush_interval, self._flush)
File "/home/ca/Store/micromamba/envs/std/lib/python3.10/site-packages/tornado/ioloop.py", line 597, in call_later
return self.call_at(self.time() + delay, callback, *args, **kwargs)
File "/home/ca/Store/micromamba/envs/std/lib/python3.10/site-packages/tornado/platform/asyncio.py", line 206, in call_at
return self.asyncio_loop.call_later(
File "/home/ca/Store/micromamba/envs/std/lib/python3.10/asyncio/base_events.py", line 721, in call_later
timer = self.call_at(self.time() + delay, callback, *args,
File "/home/ca/Store/micromamba/envs/std/lib/python3.10/asyncio/base_events.py", line 732, in call_at
self._check_closed()
File "/home/ca/Store/micromamba/envs/std/lib/python3.10/asyncio/base_events.py", line 515, in _check_closed
raise RuntimeError('Event loop is closed')
RuntimeError: Event loop is closed
The traceback does not go back to my code, so I'm not certain whether I did something wrong, or there is a bug in ipykernel.kernelbase? I am unable to reproduce the error, in the exact same situation it sometimes happens and sometimes doesn't.
I found two other issues which mention this exception, but they are about UI events (#825) or parallelization (#534), both of which I do not use. I inherited from ipykernel.kernelbase.Kernel and implemented do_execute, which sends code to an external interpreter and sends its stdout and stderr via self.send_response.
The text was updated successfully, but these errors were encountered:
I'm implementing a kernel by inheriting from
ipykernel.kernelbase.Kernel
, as described at Making simple Python wrapper kernels.That generally works well, but I have a strange problem: Occasionally I get an exception
RuntimeError: Event loop is closed
:The traceback does not go back to my code, so I'm not certain whether I did something wrong, or there is a bug in
ipykernel.kernelbase
? I am unable to reproduce the error, in the exact same situation it sometimes happens and sometimes doesn't.I found two other issues which mention this exception, but they are about UI events (#825) or parallelization (#534), both of which I do not use. I inherited from
ipykernel.kernelbase.Kernel
and implementeddo_execute
, which sends code to an external interpreter and sends its stdout and stderr viaself.send_response
.The text was updated successfully, but these errors were encountered: