/usr/lib/python2.7/dist-packages/ZODB3-3.10.5.egg-info/PKG-INFO is in python-zodb 1:3.10.5-0ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/python2.7/dist-packages/ZODB3-3.10.5.egg-info/../../../../share/pyshared/ZODB3-3.10.5.egg-info/PKG-INFO