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有人請告訴我爲什麼我不是獲得選項python3作爲內核？jupyter：沒有內核
# python3 -m ipykernel install --user
Installed kernelspec python3 in /root/.local/share/jupyter/kernels/python3
# python3 -m pip install ipykernel
Requirement already satisfied: ipykernel in /usr/lib/python3.4/site-packages
Requirement already satisfied: tornado>=4.0 in /usr/lib64/python3.4/site-packages (from ipykernel)
Requirement already satisfied: ipython>=4.0.0 in /usr/lib/python3.4/site-packages (from ipykernel)
Requirement already satisfied: jupyter-client in /usr/lib/python3.4/site-packages (from ipykernel)
Requirement already satisfied: traitlets>=4.1.0 in /usr/lib/python3.4/site-packages (from ipykernel)
Requirement already satisfied: backports_abc>=0.4 in /usr/lib/python3.4/site-packages (from tornado>=4.0->ipykernel)
Requirement already satisfied: pexpect; sys_platform != "win32" in /usr/lib/python3.4/site-packages (from ipython>=4.0.0->ipykernel)
Requirement already satisfied: pickleshare in /usr/lib/python3.4/site-packages (from ipython>=4.0.0->ipykernel)
Requirement already satisfied: decorator in /usr/lib/python3.4/site-packages (from ipython>=4.0.0->ipykernel)
Requirement already satisfied: pygments in /usr/lib64/python3.4/site-packages (from ipython>=4.0.0->ipykernel)
Requirement already satisfied: setuptools>=18.5 in /usr/lib/python3.4/site-packages (from ipython>=4.0.0->ipykernel)
Requirement already satisfied: simplegeneric>0.8 in /usr/lib/python3.4/site-packages (from ipython>=4.0.0->ipykernel)
Requirement already satisfied: prompt-toolkit<2.0.0,>=1.0.3 in /usr/lib/python3.4/site-packages (from ipython>=4.0.0->ipykernel)
Requirement already satisfied: jupyter-core in /usr/lib/python3.4/site-packages (from jupyter-client->ipykernel)
Requirement already satisfied: pyzmq>=13 in /usr/lib64/python3.4/site-packages (from jupyter-client->ipykernel)
Requirement already satisfied: ipython-genutils in /usr/lib/python3.4/site-packages (from traitlets>=4.1.0->ipykernel)
Requirement already satisfied: six in /usr/lib/python3.4/site-packages (from traitlets>=4.1.0->ipykernel)
Requirement already satisfied: ptyprocess>=0.5 in /usr/lib/python3.4/site-packages (from pexpect; sys_platform != "win32"->ipython>=4.0.0->ipykernel)
Requirement already satisfied: wcwidth in /usr/lib/python3.4/site-packages (from prompt-toolkit<2.0.0,>=1.0.3->ipython>=4.0.0->ipykernel)
在命令行我可以看到確實的python3內核安裝
# jupyter kernelspec list
[ListKernelSpecs] WARNING | Native kernel (python2) is not available
[ListKernelSpecs] WARNING | Native kernel (python2) is not available
Available kernels:
python3 /root/.local/share/jupyter/kernels/python3
但jupyter不能夠理解它： 
可能有人請就如何建議解決了這個問題？