Add module purge to remove Python-related paths when enetring container.

video_prediction_tools/env_setup/create_env.sh

@@ -89,6 +89,7 @@ if [[ "$ENV_EXIST" == 0 ]]; then
   # Activate virtual environment and install additional Python packages.
   echo "Configuring and activating virtual environment on ${HOST_NAME}"
   
+  module purge 
   singularity exec --nv "${TF_CONTAINER}" ./install_venv_container.sh "${ENV_DIR}"
   
   info_str="Virtual environment ${ENV_DIR} has been set up successfully."