/usr/share/pyshared/radicale/ is in python-radicale 0.8-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/radicale/__init__.py
/usr/share/pyshared/radicale/__main__.py
/usr/share/pyshared/radicale/auth/
/usr/share/pyshared/radicale/auth/IMAP.py
/usr/share/pyshared/radicale/auth/LDAP.py
/usr/share/pyshared/radicale/auth/PAM.py
/usr/share/pyshared/radicale/auth/__init__.py
/usr/share/pyshared/radicale/auth/courier.py
/usr/share/pyshared/radicale/auth/htpasswd.py
/usr/share/pyshared/radicale/auth/http.py
/usr/share/pyshared/radicale/config.py
/usr/share/pyshared/radicale/ical.py
/usr/share/pyshared/radicale/log.py
/usr/share/pyshared/radicale/rights/
/usr/share/pyshared/radicale/rights/__init__.py
/usr/share/pyshared/radicale/rights/from_file.py
/usr/share/pyshared/radicale/rights/owner_only.py
/usr/share/pyshared/radicale/rights/owner_write.py
/usr/share/pyshared/radicale/storage/
/usr/share/pyshared/radicale/storage/__init__.py
/usr/share/pyshared/radicale/storage/database.py
/usr/share/pyshared/radicale/storage/filesystem.py
/usr/share/pyshared/radicale/xmlutils.py