rpy2 test failures with Python 3.2

gistfile1.pytb

thomas@thomas-desktop:~$ python3 -m rpy2.tests
.E...Traceback (most recent call last):
  File "/tmp/tmpm66dxe.py", line 4, in <module>
    import rpy2.rinterface as ri
  File "/usr/local/lib/python3.2/dist-packages/rpy2/rinterface/__init__.py", line 79, in <module>
    from rpy2.rinterface._rinterface import *
ImportError: No module named _rinterface
......../usr/local/lib/python3.2/dist-packages/rpy2/rinterface/tests/test_EmbeddedR.py:324: DeprecationWarning: Please use assertEqual instead.
  self.assertEquals("Doesn't work.", str(sys.last_value))
.......................................................................................F....................................................................................................................................................................F...............................................
======================================================================
ERROR: testConsolePrint (rpy2.rinterface.tests.test_EmbeddedR.EmbeddedRTestCase)
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Traceback (most recent call last):
  File "/usr/local/lib/python3.2/dist-packages/rpy2/rinterface/tests/test_EmbeddedR.py", line 40, in testConsolePrint
    raise e
  File "/usr/local/lib/python3.2/dist-packages/rpy2/rinterface/tests/test_EmbeddedR.py", line 37, in testConsolePrint
    rinterface.consolePrint('haha')
  File "/usr/local/lib/python3.2/dist-packages/rpy2/rinterface/__init__.py", line 84, in consolePrint
    sys.stdout.write(x)
TypeError: 'str' does not support the buffer interface

======================================================================
FAIL: testInitFromSeqInvalidOverflow (rpy2.rinterface.tests.test_SexpVector.IntSexpVectorTestCase)
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Traceback (most recent call last):
  File "/usr/local/lib/python3.2/dist-packages/rpy2/rinterface/tests/test_SexpVector.py", line 170, in testInitFromSeqInvalidOverflow
    self.assertRaises(OverflowError, ri.IntSexpVector, (ri.R_LEN_T_MAX+1, ))
AssertionError: OverflowError not raised by IntSexpVector

======================================================================
FAIL: testMissingNumpy (rpy2.robjects.tests.testNumpyConversions.MissingNumpyDummyTestCase)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/local/lib/python3.2/dist-packages/rpy2/robjects/tests/testNumpyConversions.py", line 15, in testMissingNumpy
    self.assertTrue(False) # numpy is missing. No tests.
AssertionError: False is not true

----------------------------------------------------------------------
Ran 313 tests in 3.594s

FAILED (failures=2, errors=1)