我想在Jupyter中更改内核的路径,将其设置为我在机器中使用的路径 .
这是在jupyter中安装的原始内核:
jupyter kernelspec list
可用内核:python3 /home/n/.local/share/jupyter/kernels/python3 python2 / usr / local / share / jupyter / kernels / python2
然后我在我的机器中检查了python3的路径,如下所示:
which python3
/ usr / bin / python3
$ ipython kernelspec列表
我删除了python3的内核,如下所示:
jupyter kernelspec uninstall python3
哪个成功执行,然后我尝试使用我之前找到的路径安装python3,如下所示:
jupyter kernelspec install / usr / bin / python3
这给了我这个错误:
文件“/ usr / local / bin / jupyter-kernelspec”,第11行,在sys.exit(KernelSpecApp.launch_instance())文件“/usr/local/lib/python2.7/dist-packages/traitlets/config/ application.py“,第658行,在launch_instance app.start()文件”/usr/local/lib/python2.7/dist-packages/jupyter_client/kernelspecapp.py“,第273行,在start中返回self.subapp.start ()文件“/usr/local/lib/python2.7/dist-packages/jupyter_client/kernelspecapp.py”,第143行,在start replace = self.replace,File“/usr/local/lib/python2.7/ dist-packages / jupyter_client / kernelspec.py“,第299行,在install_kernel_spec中shutil.copytree(source_dir,destination)文件”/usr/lib/python2.7/shutil.py“,第171行,在copytree names = os.listdir中(src)OSError:[Errno 20]不是目录:'/ usr / bin / python3'
然后我找到了这样的正确路径:
python3 -c "import sys; print ('\n'.join(sys.path))"
/usr/lib/python3.4 /usr/lib/python3.4/plat-x86_64-linux-gnu /usr/lib/python3.4/lib-dynload /usr/local/lib/python3.4/dist-包/usr/local/lib/python3.4/dist-packages/setuptools-28.8.0-py3.4.egg / usr / lib / python3 / dist-packages
我尝试安装它像这样:
sudo jupyter kernelspec install /usr/lib/python3.4
[InstallKernelSpec]在/usr/local/share/jupyter/kernels/python3.4中安装了kernelspec python3.4
现在,当我启动jupyter时,根本没有Python 3作为内核,我现在不确定该怎么办?
2 回答
您可能没有在python 3安装上安装
ipykernel
. 要安装python内核,正确的步骤是:pip3 install ipykernel
python3 -m ipykernel install --user
见here
我能够通过使用包含在其包中的Jupyter附带的anaconda重新安装python3来解决这个问题 .
您可以通过以下命令安装anaconda:https://conda.io/docs/user-guide/install/linux.html