/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/tests/ is in bzrtools 2.6.0-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/tests/__init__.py
/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/tests/blackbox.py
/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/tests/shelf_tests.py
/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/tests/test_cbranch.py
/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/tests/test_conflict_diff.py
/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/tests/test_dotgraph.py
/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/tests/test_fetch_ghosts.py
/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/tests/test_graph.py
/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/tests/test_link_tree.py
/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/tests/test_mirror.py
/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/tests/test_patch.py
/usr/lib/python2.7/dist-packages/bzrlib/plugins/bzrtools/tests/upstream_import.py