[orca-list] Accerciser error: GtkShadowType' has no attribute

[esolve esolve <esolvepolito gmail com>]

HI,
 
    I just installed Accerciser, but when I run it through command line, it throws error:

---------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/local/bin/accerciser", line 76, in <module>
    accerciser.main()
  File "/usr/local/lib/python2.7/site-packages/accerciser/__init__.py", line 35, in main
    main = Main()
  File "/usr/local/lib/python2.7/site-packages/accerciser/accerciser.py", line 62, in __init__
    self.window = AccerciserMainWindow(self.node)
  File "/usr/local/lib/python2.7/site-packages/accerciser/main_window.py", line 51, in __init__
    self._populateUI(node)
  File "/usr/local/lib/python2.7/site-packages/accerciser/main_window.py", line 87, in _populateUI
    sw.set_shadow_type(gtk.ShadowType.IN_)
AttributeError: type object 'GtkShadowType' has no attribute 'IN_'
--------------------------------------------------------------

how to deal with this?
thanks!