add a simple python version test
add a simple python version test

original-commit-id: 37895dafd76cf7477c69dc517021688a655e0435
original-commit-url: https://github.com/ipython-contrib/IPython-notebook-extensions/commit/37895dafd76cf7477c69dc517021688a655e0435

jcb91/jupyter_nbextensions_configurator,jcb91/jupyter_nbextensions_configurator,jcb91/jupyter_nbextensions_configurator,jcb91/jupyter_nbextensions_configurator