Comment 15 for bug 128180

In addition to the solution posted by Diwaker Gupta, I found that the source code in rpy.py file needs to be changed:

Specifically, line 168 should be changed from

RException = _rpy.RException

to

RException = _rpy.RPy_RException.

Once this done, open a new python interpreter session and type

import rpy

You should that rpy is loaded without any errors