-# even if the script fails we need to change the owner of results
-# shellcheck disable=SC2086
-python3 bluval/blucon.py $options "$blueprint_name"
+if python3 --version > /dev/null; then
+ # shellcheck disable=SC2086
+ python3 bluval/blucon.py $options "$blueprint_name"
+else
+ # shellcheck disable=SC2086
+ VALIDATION_DIR="$WORKSPACE" RESULTS_DIR="$WORKSPACE/results" \
+ bluval/blucon.sh $options "$blueprint_name"
+fi