##############################################################################
echo "---> tox-install.sh"
-# Ensure we fail the job if any steps fail.
-# DO NOT set -u as virtualenv's activate script has unbound variables
-set -e -o pipefail
+# Ensure we fail the job if any steps fail or variables are missing.
+# Use -x to show value of $PYTHON in output
+set -eux -o pipefail
# Tox version is pulled in through detox to mitigate version conflict
-python -m pip install --user --quiet --upgrade tox-pyenv
-echo "----> pip freeze"
-pip freeze
+
+if [[ $PYTHON == "python2" ]]; then
+ $PYTHON -m pip install --user --quiet --upgrade tox tox-pyenv virtualenv more-itertools~=5.0.0
+else
+ $PYTHON -m pip install --user --quiet --upgrade tox tox-pyenv virtualenv
+fi
+
+
+$PYTHON -m pip freeze