These instructions cover installing a Python 3 + Jupyter Notebook + Descartes Labs stack on a clean Mac High Sierra OS X system. There are a few optional applications noted that are fun, but not necessary to get the stack running. I use Anaconda/conda for package management & installation.

sudo xcodebuild -license

git config --global user.email "xx@gmail.com"
git config --global user.name "xx"

 $ sudo yum update

Install postgresql, postgresql-devel, and postgresql-libs, and configure data directory and start the service (as the postgres user).