-echo "Requirements file"
-echo "-----------------"
-cat "$REQUIREMENTS_FILE"
-
-# Use `python -m pip` to ensure we are using the latest version of pip
-python -m pip install --user --quiet --upgrade pip
-python -m pip install --user --quiet --upgrade setuptools
-python -m pip install --user --quiet --upgrade -r "$REQUIREMENTS_FILE"
-pip freeze
+ #Python 3.5 in Ubuntu 16.04 workaround
+ if [[ -f /etc/lsb-release ]]; then
+ # shellcheck disable=SC1091
+ source /etc/lsb-release
+ if [[ $DISTRIB_RELEASE == "16.04" ]]; then
+ echo "WARNING: Python projects should move to Ubuntu 18.04 to continue receiving support"
+ echo "zipp==1.1.0" >> "$requirements_file"
+ fi
+ fi
+ # Use `python -m pip` to upgrade to the latest pip into user site-packages
+ python3 -m pip install --user --quiet --upgrade pip
+ python3 -m pip install --user --quiet --no-warn-script-location --upgrade setuptools
+ python3 -m pip install --user --quiet --no-warn-script-location --upgrade --upgrade-strategy eager -r "$requirements_file"
+ # installs are silent, show version details in log
+ python3 --version
+ python3 -m pip --version
+ python3 -m pip freeze
+ rm -rf "$requirements_file"
+ touch /tmp/pre-build-complete
+fi