Ubuntu上jupyter报错：Exception: Jupyter command `jupyter-kernelspec` not found.解决办法

项目场景解决办法

最近在为 jupyter 配置 Wolffram 时，出现了如下报错：

Traceback (most recent call last):
  File "/usr/bin/jupyter", line 33, in 
    sys.exit(load_entry_point('jupyter-core==4.7.1', 'console_scripts', 'jupyter')())
  File "/usr/lib/python3/dist-packages/jupyter_core/command.py", line 285, in main
    command = _jupyter_abspath(subcommand)
  File "/usr/lib/python3/dist-packages/jupyter_core/command.py", line 124, in _jupyter_abspath
    raise Exception(
Exception: Jupyter command `jupyter-kernelspec` not found.

这里系统提示我系统找不到 jupyter-kernelspec 命令，于是我试着列出我系统上安装的 jupyter kernelspec list，报错依旧：

系统未安装包含 jupyter-kernelspec 命令的包导致，也就是缺乏配置文件，使用如下命令安装即可：

sudo apt-get install jupyter-client

再次查询：

问题解决。