The simplest way to install ipyscales is via pip:

pip install ipyscales

or via conda:

conda install ipyscales

If you installed via pip, and notebook version < 5.3, you will also have to install / configure the front-end extension as well. If you are using classic notebook (as opposed to Jupyterlab), run:

jupyter nbextension install [--sys-prefix / --user / --system] --py ipyscales

jupyter nbextension enable [--sys-prefix / --user / --system] --py ipyscales

with the appropriate flag. If you are using Jupyterlab, install the extension with:

jupyter labextension install jupyter-scales

If you are installing using conda, these commands should be unnecessary, but If you need to run them the commands should be the same (just make sure you choose the –sys-prefix flag).