A Jupyter Kernel for PowerShell

This kernel is being written in C#, and in the process, I've taken some messaging code from the iCSharp kernel and made a generic library for .Net with a re-usable core for anyone who needs to create Jupyter kernels in .Net languages -- so feel free to borrow that if you like (it's under the Apache license).

Install

I am finally doing a preliminary release: you can download from the releases link, unzip it somewhere, and run the Install.ps1 script. Note that if you run this on Linux or OS X you should expect to see only "PowerShell (Core)" but on Windows you'll see both -- but only the "PowerShell (Full)" will actually work unless you have PowerShell Core installed in your PATH and working.

Current Status

At this point, I'm only handling two messages:

KernelInfo request
Execute request

The PowerShell kernel is working, and returning text output and errors as on the console (see examples below).

Features

Apart from the built-in Jupyter features, I'm going to add some output enhancements so you can hook into widgets, etc. However, there's none of thata yet, except that:

If you output HTML, it's rendered. I'm currently detecting this in the most simplistic fashion: by testing if the output starts with "<" and ends with ">". That probably needs work, but it's good enough for now.
When a command outputs objects, you get the text rendering, but the actual objects are also returned as application/json data.

PowerShell Core and Full

In order to get cross-platform support, this kernel is using PowerShell Core, which means you'll want to have PowerShell 6 Beta 3 installed to try it out. As of today, it also builds for "Full Framework" Windows PowerShell!

To build it yourself --or to run the "PowerShell (Core)" kernel-- you need dotnet core 2 preview. You can build it by running dotnet restore; dotnet build from the root. If you want to contribute --and want to build it in Visual Studio-- you need VS 2017 Preview version 15.3.

Examples