/usr/lib/python3/dist-packages/pyxb/ is in python3-pyxb 1.2.6+dfsg-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/pyxb/__init__.py
/usr/lib/python3/dist-packages/pyxb/binding/
/usr/lib/python3/dist-packages/pyxb/binding/__init__.py
/usr/lib/python3/dist-packages/pyxb/binding/basis.py
/usr/lib/python3/dist-packages/pyxb/binding/content.py
/usr/lib/python3/dist-packages/pyxb/binding/datatypes.py
/usr/lib/python3/dist-packages/pyxb/binding/facets.py
/usr/lib/python3/dist-packages/pyxb/binding/generate.py
/usr/lib/python3/dist-packages/pyxb/binding/saxer.py
/usr/lib/python3/dist-packages/pyxb/binding/xml_.py
/usr/lib/python3/dist-packages/pyxb/bundles/
/usr/lib/python3/dist-packages/pyxb/bundles/__init__.py
/usr/lib/python3/dist-packages/pyxb/exceptions_.py
/usr/lib/python3/dist-packages/pyxb/namespace/
/usr/lib/python3/dist-packages/pyxb/namespace/__init__.py
/usr/lib/python3/dist-packages/pyxb/namespace/archive.py
/usr/lib/python3/dist-packages/pyxb/namespace/builtin.py
/usr/lib/python3/dist-packages/pyxb/namespace/resolution.py
/usr/lib/python3/dist-packages/pyxb/namespace/utility.py
/usr/lib/python3/dist-packages/pyxb/utils/
/usr/lib/python3/dist-packages/pyxb/utils/__init__.py
/usr/lib/python3/dist-packages/pyxb/utils/activestate.py
/usr/lib/python3/dist-packages/pyxb/utils/domutils.py
/usr/lib/python3/dist-packages/pyxb/utils/fac.py
/usr/lib/python3/dist-packages/pyxb/utils/saxdom.py
/usr/lib/python3/dist-packages/pyxb/utils/saxutils.py
/usr/lib/python3/dist-packages/pyxb/utils/six.py
/usr/lib/python3/dist-packages/pyxb/utils/templates.py
/usr/lib/python3/dist-packages/pyxb/utils/unicode.py
/usr/lib/python3/dist-packages/pyxb/utils/unicode_data.py
/usr/lib/python3/dist-packages/pyxb/utils/utility.py
/usr/lib/python3/dist-packages/pyxb/utils/xmlre.py
/usr/lib/python3/dist-packages/pyxb/xmlschema/
/usr/lib/python3/dist-packages/pyxb/xmlschema/__init__.py
/usr/lib/python3/dist-packages/pyxb/xmlschema/structures.py