/usr/share/doc/python-apt/html/_sources/library/ is in python-apt-doc 0.9.3.5.
This file is owned by root:root, with mode 0o755.
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/usr/share/doc/python-apt/html/_sources/library/apt.cache.txt
/usr/share/doc/python-apt/html/_sources/library/apt.cdrom.txt
/usr/share/doc/python-apt/html/_sources/library/apt.debfile.txt
/usr/share/doc/python-apt/html/_sources/library/apt.package.txt
/usr/share/doc/python-apt/html/_sources/library/apt.progress.base.txt
/usr/share/doc/python-apt/html/_sources/library/apt.progress.gtk2.txt
/usr/share/doc/python-apt/html/_sources/library/apt.progress.text.txt
/usr/share/doc/python-apt/html/_sources/library/apt_inst.txt
/usr/share/doc/python-apt/html/_sources/library/apt_pkg.txt
/usr/share/doc/python-apt/html/_sources/library/aptsources.distinfo.txt
/usr/share/doc/python-apt/html/_sources/library/aptsources.distro.txt
/usr/share/doc/python-apt/html/_sources/library/aptsources.sourceslist.txt
/usr/share/doc/python-apt/html/_sources/library/index.txt