I found out that there is two tabs between spaces in /var/lib/python-support/python2.5/pygtk.py. one on line 41 and other on line 61. Replacing these tabs with equal amount of spaces solved this for me.
I found out that there is two tabs between spaces in /var/lib/ python- support/ python2. 5/pygtk. py. one on line 41 and other on line 61. Replacing these tabs with equal amount of spaces solved this for me.