I'll be the first to admit that I don't know a lot about modules, especially writing your own. But it sounds to me like maybe you have a problem with the current working directory when you run your script. I'm wondering if, since you call the script from /root, it doesn't look for the Ops directory in /root (/root/Ops). Just out of curiosity, if you create the /root/Ops folder and stick that module in it, does it work?