/usr/lib/python2.7/bsddb/test/ is in libpython2.7-testsuite 2.7.15~rc1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/bsddb/test/__init__.py
/usr/lib/python2.7/bsddb/test/test_all.py
/usr/lib/python2.7/bsddb/test/test_associate.py
/usr/lib/python2.7/bsddb/test/test_basics.py
/usr/lib/python2.7/bsddb/test/test_compare.py
/usr/lib/python2.7/bsddb/test/test_compat.py
/usr/lib/python2.7/bsddb/test/test_cursor_pget_bug.py
/usr/lib/python2.7/bsddb/test/test_db.py
/usr/lib/python2.7/bsddb/test/test_dbenv.py
/usr/lib/python2.7/bsddb/test/test_dbobj.py
/usr/lib/python2.7/bsddb/test/test_dbshelve.py
/usr/lib/python2.7/bsddb/test/test_dbtables.py
/usr/lib/python2.7/bsddb/test/test_distributed_transactions.py
/usr/lib/python2.7/bsddb/test/test_early_close.py
/usr/lib/python2.7/bsddb/test/test_fileid.py
/usr/lib/python2.7/bsddb/test/test_get_none.py
/usr/lib/python2.7/bsddb/test/test_join.py
/usr/lib/python2.7/bsddb/test/test_lock.py
/usr/lib/python2.7/bsddb/test/test_misc.py
/usr/lib/python2.7/bsddb/test/test_pickle.py
/usr/lib/python2.7/bsddb/test/test_queue.py
/usr/lib/python2.7/bsddb/test/test_recno.py
/usr/lib/python2.7/bsddb/test/test_replication.py
/usr/lib/python2.7/bsddb/test/test_sequence.py
/usr/lib/python2.7/bsddb/test/test_thread.py