php php-pgsql php-intl libicu-dev python3-pip \
python3-psycopg2 python3-psutil python3-jinja2 python3-icu git
-# The python-dotenv adn datrie package that comes with Ubuntu 18.04 is too old, so
+# Some of the Python packages that come with Ubuntu 18.04 are too old, so
# install the latest version from pip:
- pip3 install python-dotenv datrie
+ pip3 install python-dotenv datrie pyyaml
#
# System Configuration