/usr/lib/python3/dist-packages/csb/statistics/ is in python3-csb 1.2.3+dfsg-3.
This file is owned by root:root, with mode 0o755.
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/usr/lib/python3/dist-packages/csb/statistics/__init__.py
/usr/lib/python3/dist-packages/csb/statistics/ars.py
/usr/lib/python3/dist-packages/csb/statistics/maxent.py
/usr/lib/python3/dist-packages/csb/statistics/mixtures.py
/usr/lib/python3/dist-packages/csb/statistics/pdf/
/usr/lib/python3/dist-packages/csb/statistics/pdf/__init__.py
/usr/lib/python3/dist-packages/csb/statistics/pdf/parameterized.py
/usr/lib/python3/dist-packages/csb/statistics/rand.py
/usr/lib/python3/dist-packages/csb/statistics/samplers/
/usr/lib/python3/dist-packages/csb/statistics/samplers/__init__.py
/usr/lib/python3/dist-packages/csb/statistics/samplers/mc/
/usr/lib/python3/dist-packages/csb/statistics/samplers/mc/__init__.py
/usr/lib/python3/dist-packages/csb/statistics/samplers/mc/multichain.py
/usr/lib/python3/dist-packages/csb/statistics/samplers/mc/neqsteppropagator.py
/usr/lib/python3/dist-packages/csb/statistics/samplers/mc/propagators.py
/usr/lib/python3/dist-packages/csb/statistics/samplers/mc/singlechain.py
/usr/lib/python3/dist-packages/csb/statistics/scalemixture.py