/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/gtkgl/apputils.py is in python-gtkglext1 1.1.0-9.1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/gtk-2.0/gtk/gtkgl/../../../../../../share/pyshared/gtk-2.0/gtk/gtkgl/apputils.py