/usr/lib/python2.7/dist-packages/python_bibtex-1.2.7.egg-info is in python-bibtex 1.2.7-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/../../../share/pyshared/python_bibtex-1.2.7.egg-info