/usr/lib/python2.7/dist-packages/ is in python-zope.keyreference 3.6.4-0ubuntu1.
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/usr/lib/python2.7/dist-packages/zope.keyreference-3.6.4.egg-info/
/usr/lib/python2.7/dist-packages/zope/
/usr/lib/python2.7/dist-packages/zope/keyreference/
/usr/lib/python2.7/dist-packages/zope.keyreference-3.6.4-nspkg.pth
/usr/lib/python2.7/dist-packages/zope.keyreference-3.6.4.egg-info/top_level.txt
/usr/lib/python2.7/dist-packages/zope.keyreference-3.6.4.egg-info/not-zip-safe
/usr/lib/python2.7/dist-packages/zope.keyreference-3.6.4.egg-info/dependency_links.txt
/usr/lib/python2.7/dist-packages/zope.keyreference-3.6.4.egg-info/requires.txt
/usr/lib/python2.7/dist-packages/zope.keyreference-3.6.4.egg-info/namespace_packages.txt
/usr/lib/python2.7/dist-packages/zope.keyreference-3.6.4.egg-info/PKG-INFO
/usr/lib/python2.7/dist-packages/zope.keyreference-3.6.4.egg-info/SOURCES.txt
/usr/lib/python2.7/dist-packages/zope/keyreference/configure.zcml
/usr/lib/python2.7/dist-packages/zope/keyreference/testing.py
/usr/lib/python2.7/dist-packages/zope/keyreference/tests.py
/usr/lib/python2.7/dist-packages/zope/keyreference/__init__.py
/usr/lib/python2.7/dist-packages/zope/keyreference/persistent.py
/usr/lib/python2.7/dist-packages/zope/keyreference/persistent.txt
/usr/lib/python2.7/dist-packages/zope/keyreference/interfaces.py