/usr/lib/python3/dist-packages/sockjs/ is in python3-sockjs-tornado 1.0.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/sockjs/tornado/
/usr/lib/python3/dist-packages/sockjs/tornado/__init__.py
/usr/lib/python3/dist-packages/sockjs/tornado/basehandler.py
/usr/lib/python3/dist-packages/sockjs/tornado/conn.py
/usr/lib/python3/dist-packages/sockjs/tornado/migrate.py
/usr/lib/python3/dist-packages/sockjs/tornado/periodic.py
/usr/lib/python3/dist-packages/sockjs/tornado/proto.py
/usr/lib/python3/dist-packages/sockjs/tornado/router.py
/usr/lib/python3/dist-packages/sockjs/tornado/session.py
/usr/lib/python3/dist-packages/sockjs/tornado/sessioncontainer.py
/usr/lib/python3/dist-packages/sockjs/tornado/static.py
/usr/lib/python3/dist-packages/sockjs/tornado/stats.py
/usr/lib/python3/dist-packages/sockjs/tornado/transports/
/usr/lib/python3/dist-packages/sockjs/tornado/transports/__init__.py
/usr/lib/python3/dist-packages/sockjs/tornado/transports/base.py
/usr/lib/python3/dist-packages/sockjs/tornado/transports/eventsource.py
/usr/lib/python3/dist-packages/sockjs/tornado/transports/htmlfile.py
/usr/lib/python3/dist-packages/sockjs/tornado/transports/jsonp.py
/usr/lib/python3/dist-packages/sockjs/tornado/transports/pollingbase.py
/usr/lib/python3/dist-packages/sockjs/tornado/transports/rawwebsocket.py
/usr/lib/python3/dist-packages/sockjs/tornado/transports/streamingbase.py
/usr/lib/python3/dist-packages/sockjs/tornado/transports/websocket.py
/usr/lib/python3/dist-packages/sockjs/tornado/transports/xhr.py
/usr/lib/python3/dist-packages/sockjs/tornado/transports/xhrstreaming.py
/usr/lib/python3/dist-packages/sockjs/tornado/util.py
/usr/lib/python3/dist-packages/sockjs/tornado/websocket.py
/usr/lib/python3/dist-packages/sockjs_tornado-1.0.0.egg-info/PKG-INFO
/usr/lib/python3/dist-packages/sockjs_tornado-1.0.0.egg-info/dependency_links.txt
/usr/lib/python3/dist-packages/sockjs_tornado-1.0.0.egg-info/namespace_packages.txt
/usr/lib/python3/dist-packages/sockjs_tornado-1.0.0.egg-info/requires.txt
/usr/lib/python3/dist-packages/sockjs_tornado-1.0.0.egg-info/top_level.txt