/usr/share/pyshared/ is in python-zope.viewlet 3.7.2-0ubuntu4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/zope/
/usr/share/pyshared/zope/viewlet/
/usr/share/pyshared/zope/viewlet/manager.py
/usr/share/pyshared/zope/viewlet/interfaces.py
/usr/share/pyshared/zope/viewlet/metaconfigure.py
/usr/share/pyshared/zope/viewlet/metadirectives.py
/usr/share/pyshared/zope/viewlet/viewlet.py
/usr/share/pyshared/zope/viewlet/tests.py
/usr/share/pyshared/zope/viewlet/__init__.py
/usr/share/pyshared/zope/viewlet/README.txt
/usr/share/pyshared/zope/viewlet/communicating-viewlets.txt
/usr/share/pyshared/zope/viewlet/configure.zcml
/usr/share/pyshared/zope/viewlet/css_bundle_viewlet.pt
/usr/share/pyshared/zope/viewlet/css_viewlet.pt
/usr/share/pyshared/zope/viewlet/directives.txt
/usr/share/pyshared/zope/viewlet/javascript_bundle_viewlet.pt
/usr/share/pyshared/zope/viewlet/javascript_viewlet.pt
/usr/share/pyshared/zope/viewlet/meta.zcml
/usr/share/pyshared/zope.viewlet-3.7.2.egg-info/
/usr/share/pyshared/zope.viewlet-3.7.2.egg-info/SOURCES.txt
/usr/share/pyshared/zope.viewlet-3.7.2.egg-info/dependency_links.txt
/usr/share/pyshared/zope.viewlet-3.7.2.egg-info/top_level.txt
/usr/share/pyshared/zope.viewlet-3.7.2.egg-info/namespace_packages.txt
/usr/share/pyshared/zope.viewlet-3.7.2.egg-info/requires.txt
/usr/share/pyshared/zope.viewlet-3.7.2.egg-info/PKG-INFO
/usr/share/pyshared/zope.viewlet-3.7.2.egg-info/not-zip-safe
/usr/share/pyshared/zope.viewlet-3.7.2-nspkg.pth