'module' object has no attribute 'get_suffixes'

Traceback (most recent call last): File "blah/main.py", line 132, in Twiddle result = self
.fill_view(variables)
File "blah/main.py", line 109, in fill_view return str(t)
File "blah/Cheetah/Template.py", line 982, in __str__ def __str__(self): return getattr(se
lf, mainMethName)()
File "blah/applications/init/views/whatever/default.py", line 96, in respond _v = VFFSL(SL
,"name",True) # '$name' on line 10, col 11
File "blah/Cheetah/NameMapper.py", line 255, in valueFromFrameOrSearchList frame = inspect
.stack()[1][0]
File "/tmp/python.6884/usr/lib/python2.5/inspect.py", line 885, in stack return getouterfr
ames(sys._getframe(1), context)
File "/tmp/python.6884/usr/lib/python2.5/inspect.py", line 866, in getouterframes framelis
t.append((frame,) + getframeinfo(frame, context))
File "/tmp/python.6884/usr/lib/python2.5/inspect.py", line 837, in getframeinfo filename =
 getsourcefile(frame) or getfile(frame)
File "/tmp/python.6884/usr/lib/python2.5/inspect.py", line 386, in getsourcefile for suffi
x, mode, kind in imp.get_suffixes(): AttributeError: 'module' object has no attribute 'get_suffixes'

inspect.imp.get_suffixes = lambda : [('.py', 'U', 1)]