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PyKDL sip module API error on Turtlebot Bringup

I've just setup groovy on Ubuntu 13.04 x64 using the install instructions for 12.10.

Everything installed without errors. However, I am now trying to run a turtlebot and when launching the minimal.launch from Turtlebot Bringup I am getting many errors.

I have traced the key error to a problem with PyKDL.

This is the output from rospython:

>>> import PyKDL
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
RuntimeError: the sip module implements API v9.0 to v9.2 but the PyKDL module requires API v8.1

How can I get an updated version of PyKDL or rollback the sip module?