/usr/share/pyshared/ is in musiclibrarian 1.6-2.1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared-data/musiclibrarian
/usr/share/pyshared/musiclibrarian/
/usr/share/pyshared/musiclibrarian-1.6.egg-info
/usr/share/pyshared/musiclibrarian/__init__.py
/usr/share/pyshared/musiclibrarian/cache.py
/usr/share/pyshared/musiclibrarian/config.py
/usr/share/pyshared/musiclibrarian/configfile.py
/usr/share/pyshared/musiclibrarian/filecollection.py
/usr/share/pyshared/musiclibrarian/filelist.py
/usr/share/pyshared/musiclibrarian/filestore.py
/usr/share/pyshared/musiclibrarian/genreset.py
/usr/share/pyshared/musiclibrarian/library.py
/usr/share/pyshared/musiclibrarian/libraryeditor.py
/usr/share/pyshared/musiclibrarian/libraryview.py
/usr/share/pyshared/musiclibrarian/listenable.py
/usr/share/pyshared/musiclibrarian/musicfile.py
/usr/share/pyshared/musiclibrarian/organize.py
/usr/share/pyshared/musiclibrarian/plugins.py
/usr/share/pyshared/musiclibrarian/progress.py
/usr/share/pyshared/musiclibrarian/serialize.py
/usr/share/pyshared/musiclibrarian/sort.py
/usr/share/pyshared/musiclibrarian/status.py
/usr/share/pyshared/musiclibrarian/tags.py
/usr/share/pyshared/musiclibrarian/toplevel.py
/usr/share/pyshared/musiclibrarian/treemodel.py
/usr/share/pyshared/musiclibrarian/undo.py
/usr/share/pyshared/musiclibrarian/weak.py