/usr/share/pyshared/quantities/constants/ is in python-quantities 0.10.1-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/quantities/constants/__init__.py
/usr/share/pyshared/quantities/constants/_codata.py
/usr/share/pyshared/quantities/constants/_utils.py
/usr/share/pyshared/quantities/constants/alpha.py
/usr/share/pyshared/quantities/constants/astronomy.py
/usr/share/pyshared/quantities/constants/atomicunits.py
/usr/share/pyshared/quantities/constants/deuteron.py
/usr/share/pyshared/quantities/constants/electromagnetism.py
/usr/share/pyshared/quantities/constants/electron.py
/usr/share/pyshared/quantities/constants/helion.py
/usr/share/pyshared/quantities/constants/mathematical.py
/usr/share/pyshared/quantities/constants/muon.py
/usr/share/pyshared/quantities/constants/naturalunits.py
/usr/share/pyshared/quantities/constants/neutron.py
/usr/share/pyshared/quantities/constants/proton.py
/usr/share/pyshared/quantities/constants/quantum.py
/usr/share/pyshared/quantities/constants/relationships.py
/usr/share/pyshared/quantities/constants/statisticalmechanics.py
/usr/share/pyshared/quantities/constants/tau.py
/usr/share/pyshared/quantities/constants/triton.py
/usr/share/pyshared/quantities/constants/weak.py
/usr/share/pyshared/quantities/constants/xray.py