1.首先列出可用的kernel列表，
2.删除原来的kernel；
3.查看是否有anaconda的ipython中的kernel是否存在。
4.重新安装kernel。
具体命令如下：
$ jupyter kernelspec list
Available kernels:
python3 /home/miracode2033/anaconda3/share/jupyter/kernels/python3
$ rm -r /home/miracode2033/anaconda3/share/jupyter/kernels/python3
$ jupyter kernelspec list
Available kernels:
python3 /home/miracode2033/anaconda3/lib/python3.6/site-packages/ipykernel/resources
$ python -m ipykernel install --user
Installed kernelspec python3 in /home/miracode2033/.local/share/jupyter/kernels/python3
$