Related: beginning python, GladeTwobuttonsGUI.py, page 231.

As seen below an error occured by parsing the python code of GladeTwoButtonsGUI.glade. I'm not sure what kind of error this is but hope you will figure this out for me. Thx in advance,

python code:

import gtk.glade

class TwoButtonsGUI:
   def __init__(self):
       self.window = gtk.glade.XML('GladeTwoButtonsGUI.glade', 'window1')

if __name__ == '__main__':
   TwoButtonsGUI()
   gtk.main()

debug output:

(GladeTwoButtonsGUI.py:616): libglade-CRITICAL **: glade_xml_build_interface: assertion `wid != NULL' failed

Installed on my win32 system:

python2.4
komodo3.5
gtk-win32-devel-2.8.14-rc1
pycairo-1.0.2-1.win32-py2.4
glade-2.12.1-rc1

all packages are win32 auto-install files.