/usr/share/doc/python3-pygccxml/html is in python-pygccxml-doc 1.8.0-1.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/python3-pygccxml/../python-pygccxml-doc/html
/usr/share/doc/python3-pygccxml/../python-pygccxml-doc/html