/usr/lib/python2.7/dist-packages/zmq/tests/ is in python-zmq 15.2.0-0ubuntu4.
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..
/usr/lib/python2.7/dist-packages/zmq/tests/__init__.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_auth.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_cffi_backend.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_constants.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_context.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_device.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_error.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_etc.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_future.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_imports.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_ioloop.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_log.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_message.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_monitor.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_monqueue.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_multipart.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_pair.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_poll.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_pubsub.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_reqrep.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_retry_eintr.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_security.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_socket.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_stopwatch.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_version.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_win32_shim.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_z85.py
/usr/lib/python2.7/dist-packages/zmq/tests/test_zmqstream.py