/usr/lib/python2.7/dist-packages/bzrlib/lsprof.py is in python-bzrlib 2.5.0-2ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/bzrlib/../../../../share/pyshared/bzrlib/lsprof.py