/usr/share/pyshared/ is in python-zope.catalog 3.8.2-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/zope/
/usr/share/pyshared/zope.catalog-3.8.2-nspkg.pth
/usr/share/pyshared/zope.catalog-3.8.2.egg-info/
/usr/share/pyshared/zope.catalog-3.8.2.egg-info/PKG-INFO
/usr/share/pyshared/zope.catalog-3.8.2.egg-info/SOURCES.txt
/usr/share/pyshared/zope.catalog-3.8.2.egg-info/dependency_links.txt
/usr/share/pyshared/zope.catalog-3.8.2.egg-info/namespace_packages.txt
/usr/share/pyshared/zope.catalog-3.8.2.egg-info/not-zip-safe
/usr/share/pyshared/zope.catalog-3.8.2.egg-info/requires.txt
/usr/share/pyshared/zope.catalog-3.8.2.egg-info/top_level.txt
/usr/share/pyshared/zope/catalog/
/usr/share/pyshared/zope/catalog/README.txt
/usr/share/pyshared/zope/catalog/__init__.py
/usr/share/pyshared/zope/catalog/apidoc.zcml
/usr/share/pyshared/zope/catalog/attribute.py
/usr/share/pyshared/zope/catalog/catalog.py
/usr/share/pyshared/zope/catalog/classes.zcml
/usr/share/pyshared/zope/catalog/configure.zcml
/usr/share/pyshared/zope/catalog/event.txt
/usr/share/pyshared/zope/catalog/field.py
/usr/share/pyshared/zope/catalog/interfaces.py
/usr/share/pyshared/zope/catalog/keyword.py
/usr/share/pyshared/zope/catalog/subscribers.zcml
/usr/share/pyshared/zope/catalog/tests.py
/usr/share/pyshared/zope/catalog/text.py