vscode中使用 jupyter notebook:Failed to start the Kernel

先说结论:pyzmq版本过新,需要重新安装正确版本

pip uninstall pyzmq # 卸载pyzmq
pip install pyzmq==19.0.2 #安装pyzmq19.0.2版本

具体报错内容如下:

Failed to start the Kernel. 
D:\Download\Python38\lib\site-packages\traitlets\traitlets.py:2202: 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.
  warn(
D:\Download\Python38\lib\site-packages\traitlets\traitlets.py:2157: FutureWarning: Supporting extra quotes around Bytes is deprecated in traitlets 5.0. Use '2a720a4f-d9bd-4d7e-b0cf-bbc29778acd8' instead of 'b"2a720a4f-d9bd-4d7e-b0cf-bbc29778acd8"'.
  warn(
Bad file descriptor (C:\projects\libzmq\src\epoll.cpp:100). 
View Jupyter [log](command:jupyter.viewOutput) for further details.

发现我安装了两个python.exe:

尝试用另外一个,使用:

提示:

点击安装,出现报错:

Failed to start the Kernel. 
内核 'base (Python 3.8.8)' 会话启动失败。
查看 Jupyter [日志](command:jupyter.viewOutput)了解更多细节。 Command failed: D:/Download/Anaconda/Scripts/activate && conda activate base && echo 'e8b39361-0157-4923-80e1-22d70d46dee6' && python c:/Users/***/.vscode/extensions/ms-python.python-2022.2.1924087327/pythonFiles/printEnvVariables.py
ϵͳ�Ҳ���ָ����·����
ϵͳ�Ҳ���ָ����·����

CommandNotFoundError: Your shell has not been properly configured to use 'conda activate'.
If using 'conda activate' from a batch script, change your
invocation to 'CALL conda.bat activate'.

To initialize your shell, run

    $ conda init <SHELL_NAME>

Currently supported shells are:
  - bash
  - cmd.exe
  - fish
  - tcsh
  - xonsh
  - zsh
  - powershell

See 'conda init --help' for more information and options.

IMPORTANT: You may need to close and restart your shell after running 'conda init'.

按照报错提示,执行conda init ,

重启后得到了和上一个终端一样的报错

看来必须解决这个包过期的问题。

再运行一次,这次报的错是:NameError:name'null' is not defined

上面这个还没解决,参照网上说法可以写个

global null
null = None

当然这步还无法解决问题。

回到包的问题:

参考 https://blog.csdn.net/Mammalss/article/details/123238726 ,这里诊断认为是pyzmq的版本太新(pyzmq22.3.0版本会使得ipython不能正常工作,致使jupyter无法正常工作)

ls 查看pyzmq版本,发现正是22.3.0

我们只需

pip uninstall pyzmq # 卸载pyzmq
pip install pyzmq==19.0.2 #安装pyzmq19.0.2版本

发现重装完pyzmq就可以正常使用jupyter了

来源:西格码

物联沃分享整理
物联沃-IOTWORD物联网 » vscode中使用 jupyter notebook:Failed to start the Kernel

发表评论