/usr/share/doc/python3-pyqt5.qtsvg/changelog.Debian.gz is in python3-pyqt5.qtsvg 5.10.1+dfsg-1ubuntu2.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/python3-pyqt5.qtsvg/../python3-pyqt5/changelog.Debian.gz