/usr/lib/python2.6/dist-packages/pybootchartgui/process_tree.py is in pybootchartgui 0.14.4-3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.6/dist-packages/pybootchartgui/../../../../share/pyshared/pybootchartgui/process_tree.py