/usr/lib/python2.7/dist-packages/sage/databases/ is in sagemath-common 8.1-7ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/sage/databases/__init__.py
/usr/lib/python2.7/dist-packages/sage/databases/all.py
/usr/lib/python2.7/dist-packages/sage/databases/conway.py
/usr/lib/python2.7/dist-packages/sage/databases/cremona.py
/usr/lib/python2.7/dist-packages/sage/databases/cunningham_tables.py
/usr/lib/python2.7/dist-packages/sage/databases/db_class_polynomials.py
/usr/lib/python2.7/dist-packages/sage/databases/db_modular_polynomials.py
/usr/lib/python2.7/dist-packages/sage/databases/findstat.py
/usr/lib/python2.7/dist-packages/sage/databases/jones.py
/usr/lib/python2.7/dist-packages/sage/databases/odlyzko.py
/usr/lib/python2.7/dist-packages/sage/databases/oeis.py
/usr/lib/python2.7/dist-packages/sage/databases/sloane.py
/usr/lib/python2.7/dist-packages/sage/databases/sql_db.py
/usr/lib/python2.7/dist-packages/sage/databases/stein_watkins.py
/usr/lib/python2.7/dist-packages/sage/databases/symbolic_data.py