Comment 2 for bug 1729312

Thank you for the reply.
These commands may be useful to describe my execution environment.
I highlight that I executed them few days before to setup my openstack instance.

sudo pip install pyyaml
sudo pip install python-novaclient
sudo pip install --upgrade setuptools
pip install packaging
sudo pip install tosca-parser
cd PATH_TO_TOSCA-PARSER/Tosca-parser && sudo python setup.py install
cd PATH_TO_HOT-TRANSLATOR/hot-translator && sudo python setup.py install
sudo pip install ceilometerclient

Kind regards.