/usr/share/pyshared/ is in python-debian 0.1.21ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/deb822.py
/usr/share/pyshared/debian/
/usr/share/pyshared/debian/__init__.py
/usr/share/pyshared/debian/arfile.py
/usr/share/pyshared/debian/changelog.py
/usr/share/pyshared/debian/deb822.py
/usr/share/pyshared/debian/debfile.py
/usr/share/pyshared/debian/debian_support.py
/usr/share/pyshared/debian/debtags.py
/usr/share/pyshared/debian/deprecation.py
/usr/share/pyshared/debian_bundle/
/usr/share/pyshared/debian_bundle/__init__.py
/usr/share/pyshared/python_debian-0.1.21ubuntu1.egg-info/
/usr/share/pyshared/python_debian-0.1.21ubuntu1.egg-info/PKG-INFO
/usr/share/pyshared/python_debian-0.1.21ubuntu1.egg-info/SOURCES.txt
/usr/share/pyshared/python_debian-0.1.21ubuntu1.egg-info/dependency_links.txt
/usr/share/pyshared/python_debian-0.1.21ubuntu1.egg-info/top_level.txt