/usr/lib/python2.7/dist-packages/taskflow/engines/worker_based/ is in python-taskflow 2.3.0-2.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/taskflow/engines/worker_based/__init__.py
/usr/lib/python2.7/dist-packages/taskflow/engines/worker_based/dispatcher.py
/usr/lib/python2.7/dist-packages/taskflow/engines/worker_based/endpoint.py
/usr/lib/python2.7/dist-packages/taskflow/engines/worker_based/engine.py
/usr/lib/python2.7/dist-packages/taskflow/engines/worker_based/executor.py
/usr/lib/python2.7/dist-packages/taskflow/engines/worker_based/protocol.py
/usr/lib/python2.7/dist-packages/taskflow/engines/worker_based/proxy.py
/usr/lib/python2.7/dist-packages/taskflow/engines/worker_based/server.py
/usr/lib/python2.7/dist-packages/taskflow/engines/worker_based/types.py
/usr/lib/python2.7/dist-packages/taskflow/engines/worker_based/worker.py