[英]Cling Kernel for Jupyter on Ubuntu
I built Cling on my laptop with Ubuntu 15.04 following the instructions given on https://github.com/root-mirror/cling#jupyter because I wanted to use the Cling kernel for Jupyter. 我按照https://github.com/root-mirror/cling#jupyter上的说明使用Ubuntu 15.04在我的笔记本电脑上构建了Cling,因为我想使用Cling内核进行Jupyter。 I installed Jupyter, I checked that Cling is in my PATH, but when I type the command
我安装了Jupyter,我检查了Cling是否在我的PATH中,但是当我输入命令时
jupyter kernelspec install cling
I get the following 我得到以下内容
OSError: [Errno 2] No such file or directory: 'cling'
Someone knows what's happening? 有人知道发生了什么事吗?
According to the source code , jupyter kernelspec install
command expects the path to the directory containing kernel spec file (kernel.json) as an argument. 根据源代码 ,
jupyter kernelspec install
命令需要包含内核规范文件(kernel.json)的目录的路径作为参数。 So if you cloned the cling repository in, say, ~/cling/src, this should work: 所以,如果你克隆了cling存储库,比如〜/ cling / src,这应该可行:
jupyter kernelspec install ~/cling/src/tools/cling/tools/Jupyter/kernel/cling
That's probably because in your folder 3 versions of Cling kernel are defined (C++11, C++14 and C++17). 这可能是因为在你的文件夹中定义了3个版本的Cling内核(C ++ 11,C ++ 14和C ++ 17)。
So instead of trying to add Cling try to add one of those versions or all three if you want to. 因此,如果您愿意,可以尝试添加其中一个版本或全部三个,而不是尝试添加Cling。
I had the same problem just one minute ago, but I was able to solve it. 一分钟前我遇到了同样的问题,但我能够解决它。 I executed:
我执行了:
$ jupyter kernelspec install --user cling-cpp11
directly from /home/ubuntu_user/cling_ubuntu/share/cling/Jupyter/kernel
. 直接来自
/home/ubuntu_user/cling_ubuntu/share/cling/Jupyter/kernel
。
The installation was successful, I moved to my working directory and called a jupyter notebook; 安装成功,我移动到我的工作目录并调用了一个jupyter笔记本; it opened ok, but the kernel immediately died.
它打开确定,但内核立即死亡。
I thought the problem was that I have to install cling from where I was going to call the jupyter notebook, and I did so: 我认为问题是我必须从我要调用jupyter笔记本的地方安装cling,我这样做了:
After uninstalling the kernel (also from /home/ubuntu_user/cling_ubuntu/share/cling/Jupyter/kernel
) with: 卸载内核(也来自
/home/ubuntu_user/cling_ubuntu/share/cling/Jupyter/kernel
)后:
jupyter kernelspec uninstall cling-cpp11
I repeated all the installation process: 我重复了所有的安装过程:
Let's assume that you are usually going to call jupiter from /home/ubuntu_user
, and you have your cling repository here 我们假设你通常会从
/home/ubuntu_user
调用jupiter,你在这里有你的/home/ubuntu_user
存储库
/home/ubuntu_user/cling_ubuntu.
Then: 然后:
$ cd /home/ubuntu_user
$ cd /home/ubuntu_user
$ source activate my_env
(I work with Anaconda, so I activated my environment) $ source activate my_env
(我使用Anaconda,所以我激活了我的环境) $ export PATH=/home/ubuntu_user/cling_ubuntu/bin:$PATH
$ cd cling_ubuntu/share/cling/Jupyter/kernel/cling-cpp11
$ pip install -e.
Here you have to move to your future working directory. 在这里,您必须转到您未来的工作目录。
$ cd /home/ubuntu_user
, type: $ cd /home/ubuntu_user
,输入:
$ jupyter kernelspec install --user cling_ubuntu/share/cling/Jupyter/kernel/cling-cpp11
.. and the kernel is still alive and works ok. ..并且内核仍然存活并正常工作。
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