[pygtk] AttributeError: 'module' object has no attribute 'CAPI'

[Simon Burton]

Python 2.5.1 (r251:54863, Jun 21 2007, 12:28:02)
[GCC 4.0.3 (Ubuntu 4.0.3-1ubuntu5)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
Make it so.
>>> import gtk
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/local/lib/python2.5/site-packages/gtk-2.0/gtk/__init__.py", line 48, in <module>
    from gtk import _gtk
AttributeError: 'module' object has no attribute 'CAPI'
>>>


Any ideas ?