ipython should be provided by pyrosetta (as stated on their page), python import just works fine 
Python 2.6.6 (r266:84292, Apr 6 2011, 19:50:10)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-48)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import rosetta
>>> rosetta.init()
PYROSETTA_DATABASE environment variable was set to: /c5/shared/pyrosetta/PyRosetta-r40608.linux.64Bit/minirosetta_database... using it...
PyRosetta-40608 retrieved from: https://svn.rosettacommons.org/source/trunk/mini
(C) Copyright Rosetta Commons Member Institutions.
Created in JHU by Sergey Lyskov and PyRosetta Team.
core.init: Mini-Rosetta version 40608 from https://svn.rosettacommons.org/source/trunk/mini
core.init: command: app -database /c5/shared/pyrosetta/PyRosetta-r40608.linux.64Bit/minirosetta_database -ex1 -ex2aro
core.init: 'RNG device' seed mode, using '/dev/urandom', seed=1664975131 seed_offset=0 real_seed=1664975131
core.init.random: RandomGenerator:init: Normal mode, seed=1664975131 RG_type=mt19937