/usr/lib/python3/dist-packages/plainbox/impl/exporter/ is in python3-plainbox 0.5.3-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/plainbox/impl/exporter/__init__.py
/usr/lib/python3/dist-packages/plainbox/impl/exporter/html.py
/usr/lib/python3/dist-packages/plainbox/impl/exporter/json.py
/usr/lib/python3/dist-packages/plainbox/impl/exporter/rfc822.py
/usr/lib/python3/dist-packages/plainbox/impl/exporter/test_html.py
/usr/lib/python3/dist-packages/plainbox/impl/exporter/test_init.py
/usr/lib/python3/dist-packages/plainbox/impl/exporter/test_json.py
/usr/lib/python3/dist-packages/plainbox/impl/exporter/test_rfc822.py
/usr/lib/python3/dist-packages/plainbox/impl/exporter/test_text.py
/usr/lib/python3/dist-packages/plainbox/impl/exporter/test_xml.py
/usr/lib/python3/dist-packages/plainbox/impl/exporter/text.py
/usr/lib/python3/dist-packages/plainbox/impl/exporter/xlsx.py
/usr/lib/python3/dist-packages/plainbox/impl/exporter/xml.py