/usr/share/pyshared/apt/ is in python-apt 0.8.3ubuntu7.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/apt/__init__.py
/usr/share/pyshared/apt/cache.py
/usr/share/pyshared/apt/cdrom.py
/usr/share/pyshared/apt/debfile.py
/usr/share/pyshared/apt/deprecation.py
/usr/share/pyshared/apt/package.py
/usr/share/pyshared/apt/progress/
/usr/share/pyshared/apt/progress/__init__.py
/usr/share/pyshared/apt/progress/base.py
/usr/share/pyshared/apt/progress/gtk2.py
/usr/share/pyshared/apt/progress/old.py
/usr/share/pyshared/apt/progress/text.py
/usr/share/pyshared/apt/utils.py
/usr/share/pyshared/aptsources/__init__.py
/usr/share/pyshared/aptsources/distinfo.py
/usr/share/pyshared/aptsources/distro.py
/usr/share/pyshared/aptsources/sourceslist.py