/usr/share/pyshared/minidinstall/ is in mini-dinstall 0.6.29ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/minidinstall/ChangeFile.py
/usr/share/pyshared/minidinstall/DebianSigVerifier.py
/usr/share/pyshared/minidinstall/Dnotify.py
/usr/share/pyshared/minidinstall/DpkgControl.py
/usr/share/pyshared/minidinstall/DpkgDatalist.py
/usr/share/pyshared/minidinstall/GPGSigVerifier.py
/usr/share/pyshared/minidinstall/OrderedDict.py
/usr/share/pyshared/minidinstall/SafeWriteFile.py
/usr/share/pyshared/minidinstall/SignedFile.py
/usr/share/pyshared/minidinstall/__init__.py
/usr/share/pyshared/minidinstall/mail.py
/usr/share/pyshared/minidinstall/misc.py
/usr/share/pyshared/minidinstall/tweet.py
/usr/share/pyshared/minidinstall/version.py