Will use https://github.com/pcmanus/ccm
CCM needs 2.7, new venv and install (ccm installs pre-reqs)
mkvirtualenv -p /usr/local/bin/python2.7 datastax
pip install ccm
pip install cassandra-driver
Use this version, even though 3.9 is latest, this one is on the installation page
ccm create test -v 3.6