Trying to get the travis "before_install" bash syntax correct so that if the OS is osx AND the TOXENV is py36, then homebrew will be used to install python3.
Trying to get the travis "before_install" bash syntax correct so that if the OS is osx AND the TOXENV is py36, then homebrew will be used to install python3.

python-cmd2/cmd2,python-cmd2/cmd2