/usr/lib/python2.7/dist-packages/celery/tests/worker/ is in python-celery 3.1.20-1.
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..
/usr/lib/python2.7/dist-packages/celery/tests/worker/__init__.py
/usr/lib/python2.7/dist-packages/celery/tests/worker/test_autoreload.py
/usr/lib/python2.7/dist-packages/celery/tests/worker/test_autoscale.py
/usr/lib/python2.7/dist-packages/celery/tests/worker/test_bootsteps.py
/usr/lib/python2.7/dist-packages/celery/tests/worker/test_components.py
/usr/lib/python2.7/dist-packages/celery/tests/worker/test_consumer.py
/usr/lib/python2.7/dist-packages/celery/tests/worker/test_control.py
/usr/lib/python2.7/dist-packages/celery/tests/worker/test_heartbeat.py
/usr/lib/python2.7/dist-packages/celery/tests/worker/test_hub.py
/usr/lib/python2.7/dist-packages/celery/tests/worker/test_loops.py
/usr/lib/python2.7/dist-packages/celery/tests/worker/test_request.py
/usr/lib/python2.7/dist-packages/celery/tests/worker/test_revoke.py
/usr/lib/python2.7/dist-packages/celery/tests/worker/test_state.py
/usr/lib/python2.7/dist-packages/celery/tests/worker/test_strategy.py
/usr/lib/python2.7/dist-packages/celery/tests/worker/test_worker.py