/usr/lib/python3/dist-packages/sleekxmpp/stanza/ is in python3-sleekxmpp 1.3.1-6.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/sleekxmpp/stanza/__init__.py
/usr/lib/python3/dist-packages/sleekxmpp/stanza/atom.py
/usr/lib/python3/dist-packages/sleekxmpp/stanza/error.py
/usr/lib/python3/dist-packages/sleekxmpp/stanza/htmlim.py
/usr/lib/python3/dist-packages/sleekxmpp/stanza/iq.py
/usr/lib/python3/dist-packages/sleekxmpp/stanza/message.py
/usr/lib/python3/dist-packages/sleekxmpp/stanza/nick.py
/usr/lib/python3/dist-packages/sleekxmpp/stanza/presence.py
/usr/lib/python3/dist-packages/sleekxmpp/stanza/rootstanza.py
/usr/lib/python3/dist-packages/sleekxmpp/stanza/roster.py
/usr/lib/python3/dist-packages/sleekxmpp/stanza/stream_error.py
/usr/lib/python3/dist-packages/sleekxmpp/stanza/stream_features.py