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Since 2021.10

최대 1 분 소요

이 글은 2021년 당시 Python 3.7 / TensorFlow 2.2 환경 기준으로 작성된 설치/사용 기록이다. 최신 버전에서는 명령이 다를 수 있다.

주피터 노트북에서 커널이 죽으면서 AttributeError: 'SelectIOLoop' object has no attribute 'asyncio_loop' 오류가 발생하는 경우가 있다. 이 글은 해당 에러 메시지와 conda를 이용한 해결 방법을 정리한다.

에러 메시지

Kernel died (code: 1). AttributeError: 'SelectIOLoop' object has no attribute 'asyncio_loop', C:\Users\poeun\AppData\Roaming\Python\Python37\site-packages\traitlets\traitlets.py:2205: FutureWarning: Supporting extra quotes around strings is deprecated in traitlets 5.0. You can use 'hmac-sha256' instead of '"hmac-sha256"' if you require traitlets >=5. FutureWarning) C:\Users\poeun\AppData\Roaming\Python\Python37\site-packages\traitlets\traitlets.py:2160: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use 'b0667961-bfc2-4d68-a435-57b7615799ef' instead of 'b"b0667961-bfc2-4d68-a435-57b7615799ef"'. FutureWarning) Traceback (most recent call last): File "C:\Users\poeun\anaconda3\envs\tf2.2\lib\runpy.py", line 193, in _run_module_as_main "__main__", mod_spec) File "C:\Users\poeun\anaconda3\envs\tf2.2\lib\runpy.py", line 85, in _run_code exec(code, run_globals) File "C:\Users\poeun\AppData\Roaming\Python\Python37\site-packages\ipykernel_launcher.py", line 16, in <module> app.launch_new_instance() File "C:\Users\poeun\AppData\Roaming\Python\Python37\site-packages\traitlets\config\application.py", line 846, in launch_instance app.start() File "C:\Users\poeun\AppData\Roaming\Python\Python37\site-packages\ipykernel\kernelapp.py", line 665, in start self.kernel.start() File "C:\Users\poeun\AppData\Roaming\Python\Python37\site-packages\ipykernel\ipkernel.py", line 170, in start super(IPythonKernel, self).start() File "C:\Users\poeun\AppData\Roaming\Python\Python37\site-packages\ipykernel\kernelbase.py", line 496, in start asyncio.run_coroutine_threadsafe(self.poll_control_queue(), control_loop.asyncio_loop) AttributeError: 'SelectIOLoop' object has no attribute 'asyncio_loop'

해결 방법

  1. conda install ipykernel --update-deps --force-reinstall

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