/usr/lib/python3/dist-packages/csb/bio/ is in python3-csb 1.2.3+dfsg-3.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/csb/bio/__init__.py
/usr/lib/python3/dist-packages/csb/bio/fragments/
/usr/lib/python3/dist-packages/csb/bio/fragments/__init__.py
/usr/lib/python3/dist-packages/csb/bio/fragments/rosetta.py
/usr/lib/python3/dist-packages/csb/bio/hmm/
/usr/lib/python3/dist-packages/csb/bio/hmm/__init__.py
/usr/lib/python3/dist-packages/csb/bio/hmm/pseudocounts.py
/usr/lib/python3/dist-packages/csb/bio/io/
/usr/lib/python3/dist-packages/csb/bio/io/__init__.py
/usr/lib/python3/dist-packages/csb/bio/io/clans.py
/usr/lib/python3/dist-packages/csb/bio/io/cs.py
/usr/lib/python3/dist-packages/csb/bio/io/dssp.py
/usr/lib/python3/dist-packages/csb/bio/io/fasta.py
/usr/lib/python3/dist-packages/csb/bio/io/hhpred.py
/usr/lib/python3/dist-packages/csb/bio/io/mrc.py
/usr/lib/python3/dist-packages/csb/bio/io/noe.py
/usr/lib/python3/dist-packages/csb/bio/io/procheck.py
/usr/lib/python3/dist-packages/csb/bio/io/psipred.py
/usr/lib/python3/dist-packages/csb/bio/io/svg.py
/usr/lib/python3/dist-packages/csb/bio/io/vasco.py
/usr/lib/python3/dist-packages/csb/bio/io/whatif.py
/usr/lib/python3/dist-packages/csb/bio/io/wwpdb.py
/usr/lib/python3/dist-packages/csb/bio/nmr/
/usr/lib/python3/dist-packages/csb/bio/nmr/__init__.py
/usr/lib/python3/dist-packages/csb/bio/nmr/resources/
/usr/lib/python3/dist-packages/csb/bio/nmr/resources/AtomConnectivity.xml
/usr/lib/python3/dist-packages/csb/bio/nmr/resources/RandomCoil.Corrections.tsv
/usr/lib/python3/dist-packages/csb/bio/nmr/resources/RandomCoil.Reference.tsv
/usr/lib/python3/dist-packages/csb/bio/sequence/
/usr/lib/python3/dist-packages/csb/bio/sequence/__init__.py
/usr/lib/python3/dist-packages/csb/bio/sequence/alignment.py
/usr/lib/python3/dist-packages/csb/bio/structure/
/usr/lib/python3/dist-packages/csb/bio/structure/__init__.py
/usr/lib/python3/dist-packages/csb/bio/utils/
/usr/lib/python3/dist-packages/csb/bio/utils/__init__.py