python - KernelRestarter：重启失败

Question

Jupyter notebook 是用 conda 安装的。

运行笔记本文件时，出现此“KernelRestarter：重新启动失败”错误。所有错误信息如下。

KernelRestarter: restarting kernel (4/5), new random ports
Traceback (most recent call last):
  File "/home/itc/anaconda3/envs/fastai/lib/python3.6/runpy.py", line 193, in _run_module_as_main
    "__main__", mod_spec)
  File "/home/itc/anaconda3/envs/fastai/lib/python3.6/runpy.py", line 85, in _run_code
    exec(code, run_globals)
  File "/home/itc/anaconda3/envs/fastai/lib/python3.6/site-packages/ipykernel_launcher.py", line 15, in <module>
    from ipykernel import kernelapp as app
  File "/home/itc/anaconda3/envs/fastai/lib/python3.6/site-packages/ipykernel/__init__.py", line 2, in <module>
    from .connect import *
  File "/home/itc/anaconda3/envs/fastai/lib/python3.6/site-packages/ipykernel/connect.py", line 13, in <module>
    from IPython.core.profiledir import ProfileDir
  File "/home/itc/anaconda3/envs/fastai/lib/python3.6/site-packages/IPython/__init__.py", line 49, in <module>
    from .terminal.embed import embed
  File "/home/itc/anaconda3/envs/fastai/lib/python3.6/site-packages/IPython/terminal/embed.py", line 18, in <module>
    from IPython.terminal.interactiveshell import TerminalInteractiveShell
  File "/home/itc/anaconda3/envs/fastai/lib/python3.6/site-packages/IPython/terminal/interactiveshell.py", line 20, in <module>
    from prompt_toolkit.shortcuts import create_prompt_application, create_eventloop, create_prompt_layout, create_output
ImportError: cannot import name 'create_prompt_application'

标签： pythonjupyter-notebookanaconda

Answer 1

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Looking at the same problem as me. The ipykernel of my virtual environment cannot be started because of the wrong version of the component.

now fixed it.

pip3 install -U ipykernel