/usr/share/pyshared/zope/session/ is in python-zope.session 3.9.4-0ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/zope/session/__init__.py
/usr/share/pyshared/zope/session/adapters.zcml
/usr/share/pyshared/zope/session/api.txt
/usr/share/pyshared/zope/session/apidoc.zcml
/usr/share/pyshared/zope/session/classes.zcml
/usr/share/pyshared/zope/session/configure.zcml
/usr/share/pyshared/zope/session/design.txt
/usr/share/pyshared/zope/session/http.py
/usr/share/pyshared/zope/session/interfaces.py
/usr/share/pyshared/zope/session/session.py
/usr/share/pyshared/zope/session/subscribers.zcml
/usr/share/pyshared/zope/session/tests.py