This python program cleverly merges the exported edX course and the given olx-format course partials, and then generates a new importable tgz file.
Written in python 2.7.6, depends on package "lxml"
Demo: https://www.youtube.com/watch?v=IXrqJMM3quE
Usage: python olxupdate.py [unzipped course folder] [olx-format update folder]