Debian - Install Jupyter and Scala kernel on Debian Stretch

install-jupyter.sh

#!/bin/bash

###################################################################################
# Requirements: python3, pip3 and curl
#
# You may be probably interested on creating an isolated Python3 environment.
# A quick recipe would be:
#    $ sudo apt-get install python3-minimal curl virtualenv virtualenvwrapper
#    $ mkvirtualenv -p /usr/bin/python3 myenv
#    $ workon myenv
#    $ ./install-jupyter.sh
#    $ jupyter notebook
###################################################################################

function install_jupyter_core {
  pip3 install --upgrade jupyter
}

function install_jupyter_coursier {
  pushd /usr/local/bin
  [[ ! -e coursier ]] && \
    sudo curl -L -o coursier https://git.io/vgvpD && \
      sudo chmod 755 coursier && pwd && ./coursier --help
  popd
}

function install_jupyter_kernel_scala {
  pushd /tmp
  curl -L -o jupyter-scala https://raw.githubusercontent.com/alexarchambault/jupyter-scala/master/jupyter-scala \
    && chmod +x jupyter-scala \
      && ./jupyter-scala --force
  popd
}

install_jupyter_core \
  && install_jupyter_coursier \
    && install_jupyter_kernel_scala \
      && hash -r; jupyter kernelspec list