So I'm two days from launch, the OpenERP support reps can't fix the one click installation of modules for both their own modules and the community modules and so I resorted to doing it the old fashioned way and trying to put the modules in the apps directory myself.

Now, I get a long traceback error followed by ImportError: No module named xlrd when I try to update the modules list. So I can't one-click install, can't install manually. How do I fix this issue?

This is on a fresh install of v7. I haven't even imported any of my own data.