/usr/lib/python2.7/dist-packages/plip/modules/ is in plip 1.3.5+dfsg-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python2.7/dist-packages/plip/modules/__init__.py
/usr/lib/python2.7/dist-packages/plip/modules/chimeraplip.py
/usr/lib/python2.7/dist-packages/plip/modules/config.py
/usr/lib/python2.7/dist-packages/plip/modules/detection.py
/usr/lib/python2.7/dist-packages/plip/modules/mp.py
/usr/lib/python2.7/dist-packages/plip/modules/plipremote.py
/usr/lib/python2.7/dist-packages/plip/modules/plipxml.py
/usr/lib/python2.7/dist-packages/plip/modules/preparation.py
/usr/lib/python2.7/dist-packages/plip/modules/pymolplip.py
/usr/lib/python2.7/dist-packages/plip/modules/report.py
/usr/lib/python2.7/dist-packages/plip/modules/supplemental.py
/usr/lib/python2.7/dist-packages/plip/modules/visualize.py
/usr/lib/python2.7/dist-packages/plip/modules/webservices.py