/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/ is in python-networkx 1.8.1-0ubuntu3.
This file is owned by root:root, with mode 0o755.
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/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/__init__.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/betweenness.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/betweenness_subset.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/closeness.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/communicability_alg.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/current_flow_betweenness.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/current_flow_betweenness_subset.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/current_flow_closeness.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/degree_alg.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/eigenvector.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/flow_matrix.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/katz.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/load.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/tests/
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/tests/test_betweenness_centrality.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/tests/test_betweenness_centrality_subset.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/tests/test_closeness_centrality.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/tests/test_communicability.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/tests/test_current_flow_betweenness_centrality.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/tests/test_current_flow_betweenness_centrality_subset.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/tests/test_current_flow_closeness.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/tests/test_degree_centrality.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/tests/test_eigenvector_centrality.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/tests/test_katz_centrality.py
/usr/lib/python2.7/dist-packages/networkx/algorithms/centrality/tests/test_load_centrality.py