rxgraph graph not visible on Arch

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When I run rxgraph:

[ajc@whales ~]$ rxgraph
Traceback (most recent call last):
  File "/home/ajc/ros-diamondback/rx/xdot/src/xdot/wxxdot.py", line 185, in OnPaint
    ctx = wxcairo.ContextFromDC(dc)
  File "/usr/lib/python2.7/site-packages/wx-2.8-gtk2-unicode/wx/lib/wxcairo.py", line 124, in ContextFromDC
    ctx = pycairoAPI.Context_FromContext(ctxptr, pycairoAPI.Context_Type, None)
AttributeError: 'Pycairo_CAPI' object has no attribute 'Context_FromContext'
Traceback (most recent call last):
  File "/home/ajc/ros-diamondback/rx/xdot/src/xdot/wxxdot.py", line 185, in OnPaint
    ctx = wxcairo.ContextFromDC(dc)
  File "/usr/lib/python2.7/site-packages/wx-2.8-gtk2-unicode/wx/lib/wxcairo.py", line 124, in ContextFromDC
    ctx = pycairoAPI.Context_FromContext(ctxptr, pycairoAPI.Context_Type, None)
AttributeError: 'Pycairo_CAPI' object has no attribute 'Context_FromContext'
Traceback (most recent call last):
  File "/home/ajc/ros-diamondback/rx/xdot/src/xdot/wxxdot.py", line 185, in OnPaint
    ctx = wxcairo.ContextFromDC(dc)
  File "/usr/lib/python2.7/site-packages/wx-2.8-gtk2-unicode/wx/lib/wxcairo.py", line 124, in ContextFromDC
    ctx = pycairoAPI.Context_FromContext(ctxptr, pycairoAPI.Context_Type, None)
AttributeError: 'Pycairo_CAPI' object has no attribute 'Context_FromContext'
^C

The main "pane" is empty, where graphs should be. On the info sidgebar, I see this:

Node [/rosout]
Publications: 
 * /rosout_agg [rosgraph_msgs/Log]

Subscriptions: 
 * /rosout [rosgraph_msgs/Log]

Services: 
 * /rosout/get_loggers
 * /rosout/set_logger_level
Pid: 8337
Connections:
 * topic: /rosout
    * to: http://whales:39606/
    * direction: inbound
    * transport: TCPROS
 * topic: /rosout
    * to: http://whales:52244/
    * direction: inbound
    * transport: TCPROS

I'm running Arch linux. More information:

[ajc@whales ~]$ uname -a
Linux whales 2.6.39-ARCH #1 SMP PREEMPT Sat Jul 9 15:31:04 CEST 2011 i686 AMD Athlon(tm) 64 X2 Dual-Core Processor TK-55 AuthenticAMD GNU/Linux
[ajc@whales ~]$ python --version
Python 2.7.2
[ajc@whales ~]$ sudo pacman -Ss wxpython
Password: 
extra/wxpython 2.8.12.1-1 [installed]
    A wxWidgets GUI toolkit for Python
community/wammu 0.35-1
    A wxPython-based GUI for Gammu

My suspicion is that this is a problem with Arch Linux's default /usr/bin/python, which is version 3, and how overriding it to version2 plays with the repo's wxWidgets.

Any help would be greatly appreciated!