/usr/lib/python2.7/dist-packages/ is in python-van.testing 3.0.0-0ubuntu3.
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..
/usr/lib/python2.7/dist-packages/van/
/usr/lib/python2.7/dist-packages/van/testing/
/usr/lib/python2.7/dist-packages/van/testing/zcml_features.txt
/usr/lib/python2.7/dist-packages/van/testing/__init__.py
/usr/lib/python2.7/dist-packages/van/testing/layer.py
/usr/lib/python2.7/dist-packages/van/testing/ftesting.zcml
/usr/lib/python2.7/dist-packages/van/testing/testbrowser.txt
/usr/lib/python2.7/dist-packages/van/testing/tests.py
/usr/lib/python2.7/dist-packages/van/testing/README.txt
/usr/lib/python2.7/dist-packages/van.testing-3.0.0-py2.7-nspkg.pth
/usr/lib/python2.7/dist-packages/van.testing-3.0.0.egg-info/
/usr/lib/python2.7/dist-packages/van.testing-3.0.0.egg-info/PKG-INFO
/usr/lib/python2.7/dist-packages/van.testing-3.0.0.egg-info/namespace_packages.txt
/usr/lib/python2.7/dist-packages/van.testing-3.0.0.egg-info/requires.txt
/usr/lib/python2.7/dist-packages/van.testing-3.0.0.egg-info/not-zip-safe
/usr/lib/python2.7/dist-packages/van.testing-3.0.0.egg-info/dependency_links.txt
/usr/lib/python2.7/dist-packages/van.testing-3.0.0.egg-info/top_level.txt