To install: place the files in ~/.ipython/kernels/jkernel* directory. Rename "config-sample.ini" to "config.ini" and change the paths to match your setup. Open jupyter notebook (or ipython notebook, but it's deprecated) from this directory.

(* or the newer location: ~/.local/share/jupyter/kernels/jkernel on Linux, %APPDATA%\jupyter\kernels\jkernel on Windows, ~/Library/Jupyter/kernels/jkernel on OSX.)

Requires IPython 3.0+, possibly 4.0+.

(in theory jkernel.py should be placed in Python's dist-packages directory to be accessible from everywhere, but that's not important at this stage)