/usr/lib/python3/dist-packages/cssutils/css/ is in python3-cssutils 1.0.2-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/cssutils/css/__init__.py
/usr/lib/python3/dist-packages/cssutils/css/colors.py
/usr/lib/python3/dist-packages/cssutils/css/csscharsetrule.py
/usr/lib/python3/dist-packages/cssutils/css/csscomment.py
/usr/lib/python3/dist-packages/cssutils/css/cssfontfacerule.py
/usr/lib/python3/dist-packages/cssutils/css/cssimportrule.py
/usr/lib/python3/dist-packages/cssutils/css/cssmediarule.py
/usr/lib/python3/dist-packages/cssutils/css/cssnamespacerule.py
/usr/lib/python3/dist-packages/cssutils/css/csspagerule.py
/usr/lib/python3/dist-packages/cssutils/css/cssproperties.py
/usr/lib/python3/dist-packages/cssutils/css/cssrule.py
/usr/lib/python3/dist-packages/cssutils/css/cssrulelist.py
/usr/lib/python3/dist-packages/cssutils/css/cssstyledeclaration.py
/usr/lib/python3/dist-packages/cssutils/css/cssstylerule.py
/usr/lib/python3/dist-packages/cssutils/css/cssstylesheet.py
/usr/lib/python3/dist-packages/cssutils/css/cssunknownrule.py
/usr/lib/python3/dist-packages/cssutils/css/cssvalue.py
/usr/lib/python3/dist-packages/cssutils/css/cssvariablesdeclaration.py
/usr/lib/python3/dist-packages/cssutils/css/cssvariablesrule.py
/usr/lib/python3/dist-packages/cssutils/css/marginrule.py
/usr/lib/python3/dist-packages/cssutils/css/property.py
/usr/lib/python3/dist-packages/cssutils/css/selector.py
/usr/lib/python3/dist-packages/cssutils/css/selectorlist.py
/usr/lib/python3/dist-packages/cssutils/css/value.py