set -eux -o pipefail
# Tox version is pulled in through detox to mitigate version conflict
-$PYTHON -m pip install --user --quiet --upgrade tox-pyenv
+
+
+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