缺少Jupyter Scala内核

Question

我在OS 10.10.5上运行。我正在尝试将Scala内核添加到我的Jupyter笔记本中。

$ jupyter --version
4.0.4

$ conda --version
conda 3.17.0

我从git下载了jupyter-scala，然后从源代码构建了Scala 2.11。

$ sbt cli/target

$ ls -l /Users/davidlaxer/jupyter-scala/cli/target/scala-2.11/

total 224

drwxr-xr-x 4 davidlaxer staff 136 Sep 21 12:39 classes
-rw-r--r-- 1 davidlaxer staff 114465 Sep 21 12:39 jupyter-scala-cli_2.11.6-0.2.0-SNAPSHOT.jar

$ sudo jupyter kernelspec install scala-2.11/

Password:

[InstallKernelSpec] Installed kernelspec in /usr/local/share/jupyter/kernels/

David-Laxers-MacBook-Pro:target davidlaxer$ jupyter kernelspec list

Available kernels:

ir
julia-0.3
matlab_kernel
python2

$ ls -l /usr/local/share/jupyter/kernels/
total 224
drwxr-xr-x  4 root  wheel     136 Sep 21 12:39 classes
-rw-r--r--  1 root  wheel  114465 Sep 21 12:39 jupyter-scala-cli_2.11.6-0.2.0-SNAPSHOT.jar

为什么我看不到scala2.11内核？

没有Scala！

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Answer 1

要从源代码安装jupyter-scala，您应该执行如下操作

git clone https://github.com/alexarchambault/jupyter-scala.git
cd jupyter-scala
sbt cli/pack
cli/target/pack/bin/jupyter-scala

那么ipython kernelspec list应该会显示scala211。

对于scala2.10内核，请查看scala-2.10.x分支，并执行sbt /pack而不是sbt / ++2.10.5。那么内核名称就是scala210。请注意，要以这种方式同时拥有两个内核，您应该将repo克隆到两个不同的目录中。

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