Author: Samuel Lelièvre
After initial interest for a Scala Juptyer kernel in CoCalc, an issue was opened:
The IScala Juptyer kernel was installed and available in CoCalc for a while.
With the upgrade of the CoCalc project image to Ubuntu 18.04, IScala failed to install. Its development also seems to have stopped in 2014. Since then, there is no longer a Scala Jupyter kernel available on CoCalc, unless one switches to the old image. See
Almond is a currently maintainted Scala Jupyter kernel.
We follow the quick start installation guide:
The guide suggests setting the
We check the Scala version installed in CoCalc:
~$ scala Picked up _JAVA_OPTIONS: -Djava.io.tmpdir=/home/user/tmp/ -Xms64m Welcome to Scala 2.11.12 (OpenJDK 64-Bit Server VM, Java 10.0.2). Type in expressions for evaluation. Or try :help. scala>
Leave using ctrl-C (is there another way?).
Seems the available version of Scala is 2.11.12.
The Almond website has a "versions" section:
which says all versions >= 0.13.x will install for SCALA 2.11.12.
So we check the latest release
and we set:
~$ SCALA_VERSION=2.11.12 ALMOND_VERSION=0.2.1
For the next step, we need Coursier (not available system-wide on CoCalc).
The new Coursier website is work in progress, but there is a "former readme" with instructions:
Installing Coursier works fine following the "Command line" section of the "former readme":
~$ curl -L -o coursier https://git.io/vgvpD && chmod +x coursier && ./coursier --help
Then we can get Almond:
$ ./coursier bootstrap \ -r jitpack \ -i user -I user:sh.almond:scala-kernel-api_$SCALA_VERSION:$ALMOND_VERSION \ sh.almond:scala-kernel_$SCALA_VERSION:$ALMOND_VERSION \ --sources --default=true \ -o almond
and install it:
~$ ./almond --install
There is a demo Jupyter Notebook at:
We download it
~$ curl -O https://raw.githubusercontent.com/almond-sh/almond/master/examples/plotly-scala.ipynb
Sadly, no output appears.
IScala -- development stopped in 2014