/usr/lib/python2.7/dist-packages/testtools/tests/ is in python-testtools 1.8.0-5.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/testtools/tests/__init__.py
/usr/lib/python2.7/dist-packages/testtools/tests/helpers.py
/usr/lib/python2.7/dist-packages/testtools/tests/matchers/
/usr/lib/python2.7/dist-packages/testtools/tests/matchers/__init__.py
/usr/lib/python2.7/dist-packages/testtools/tests/matchers/helpers.py
/usr/lib/python2.7/dist-packages/testtools/tests/matchers/test_basic.py
/usr/lib/python2.7/dist-packages/testtools/tests/matchers/test_datastructures.py
/usr/lib/python2.7/dist-packages/testtools/tests/matchers/test_dict.py
/usr/lib/python2.7/dist-packages/testtools/tests/matchers/test_doctest.py
/usr/lib/python2.7/dist-packages/testtools/tests/matchers/test_exception.py
/usr/lib/python2.7/dist-packages/testtools/tests/matchers/test_filesystem.py
/usr/lib/python2.7/dist-packages/testtools/tests/matchers/test_higherorder.py
/usr/lib/python2.7/dist-packages/testtools/tests/matchers/test_impl.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_assert_that.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_compat.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_content.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_content_type.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_deferredruntest.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_distutilscmd.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_fixturesupport.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_helpers.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_monkey.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_run.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_runtest.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_spinner.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_tags.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_testcase.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_testresult.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_testsuite.py
/usr/lib/python2.7/dist-packages/testtools/tests/test_with_with.py