/usr/share/doc/python-sphinx-gallery-doc/html/_sources/gen_modules/ is in python-sphinx-gallery-doc 0.1.13-1ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/doc/python-sphinx-gallery-doc/html/_sources/gen_modules/sphinx_gallery.backreferences.rst.txt
/usr/share/doc/python-sphinx-gallery-doc/html/_sources/gen_modules/sphinx_gallery.docs_resolv.rst.txt
/usr/share/doc/python-sphinx-gallery-doc/html/_sources/gen_modules/sphinx_gallery.downloads.rst.txt
/usr/share/doc/python-sphinx-gallery-doc/html/_sources/gen_modules/sphinx_gallery.gen_gallery.rst.txt
/usr/share/doc/python-sphinx-gallery-doc/html/_sources/gen_modules/sphinx_gallery.gen_rst.rst.txt
/usr/share/doc/python-sphinx-gallery-doc/html/_sources/gen_modules/sphinx_gallery.notebook.rst.txt
/usr/share/doc/python-sphinx-gallery-doc/html/_sources/gen_modules/sphinx_gallery.py_source_parser.rst.txt
/usr/share/doc/python-sphinx-gallery-doc/html/_sources/gen_modules/sphinx_gallery.sorting.rst.txt