/usr/share/doc/python3-pyqt5.qsci-dbg is in python3-pyqt5.qsci-dbg 2.10.2+dfsg-4.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/doc/python3-pyqt5.qsci
/usr/share/doc/python3-pyqt5.qsci