/usr/lib/python2.7/dist-packages/oslo.config-1.3.0.egg-info/namespace_packages.txt is in python-oslo.config 1:1.3.0-2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/oslo.config-1.3.0.egg-info/../../../../share/pyshared/oslo.config-1.3.0.egg-info/namespace_packages.txt