下面我们通过实例来看一下删除jupyter其他内核的方法：
1、查看Jupyter已经安装的内核版本：
→ jupyter kernelspec list Available kernels: scala210 /Users/yumm/.ipython/kernels/scala210 scala211 /Users/yumm/.ipython/kernels/scala211 python2 /Users/yumm/Library/Jupyter/kernels/python2 python3 /Users/yumm/anaconda3/share/jupyter/kernels/python3 apache_toree_pyspark /usr/local/share/jupyter/kernels/apache_toree_pyspark apache_toree_scala /usr/local/share/jupyter/kernels/apache_toree_scala apache_toree_sparkr /usr/local/share/jupyter/kernels/apache_toree_sparkr apache_toree_sql /usr/local/share/jupyter/kernels/apache_toree_sql
2、移除安装Scala210的内核
→ jupyter kernelspec remove scala210 → jupyter kernelspec list Available kernels: scala211 /Users/yumm/.ipython/kernels/scala211 python2 /Users/yumm/Library/Jupyter/kernels/python2 python3 /Users/yumm/anaconda3/share/jupyter/kernels/python3 apache_toree_pyspark /usr/local/share/jupyter/kernels/apache_toree_pyspark apache_toree_scala /usr/local/share/jupyter/kernels/apache_toree_scala apache_toree_sparkr /usr/local/share/jupyter/kernels/apache_toree_sparkr apache_toree_sql /usr/local/share/jupyter/kernels/apache_toree_sql
使用的命令：
查看 Jupyter notebook kernel
jupyter kernelspec list
删除 jupyter 内核
jupyter kernelspec remove kernelname
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