Adding python functions to OOT module

I'm trying to add python functions to a custom OOT module and am having issues importing the module into gnuradio-companion.  If I add the module name to an import block, I get an error saying the import failed.  I have followed the tutorial at:

https://wiki.gnuradio.org/index.php/TutorialPythonFunctions 

Any help would be appreciated.