/usr/share/pyshared/ is in python-zope.app.zopeappgenerations 3.5.1-0ubuntu3.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/zope/
/usr/share/pyshared/zope.app.zopeappgenerations-3.5.1-nspkg.pth
/usr/share/pyshared/zope.app.zopeappgenerations-3.5.1.egg-info/
/usr/share/pyshared/zope.app.zopeappgenerations-3.5.1.egg-info/PKG-INFO
/usr/share/pyshared/zope.app.zopeappgenerations-3.5.1.egg-info/SOURCES.txt
/usr/share/pyshared/zope.app.zopeappgenerations-3.5.1.egg-info/dependency_links.txt
/usr/share/pyshared/zope.app.zopeappgenerations-3.5.1.egg-info/namespace_packages.txt
/usr/share/pyshared/zope.app.zopeappgenerations-3.5.1.egg-info/not-zip-safe
/usr/share/pyshared/zope.app.zopeappgenerations-3.5.1.egg-info/requires.txt
/usr/share/pyshared/zope.app.zopeappgenerations-3.5.1.egg-info/top_level.txt
/usr/share/pyshared/zope/app/
/usr/share/pyshared/zope/app/zopeappgenerations/
/usr/share/pyshared/zope/app/zopeappgenerations/__init__.py
/usr/share/pyshared/zope/app/zopeappgenerations/configure.zcml
/usr/share/pyshared/zope/app/zopeappgenerations/evolve2.py
/usr/share/pyshared/zope/app/zopeappgenerations/evolve3.py
/usr/share/pyshared/zope/app/zopeappgenerations/evolve4.py
/usr/share/pyshared/zope/app/zopeappgenerations/evolve5.py