/usr/share/pyshared/MMTK/ForceFields/ is in python-mmtk 2.7.9-1.
This file is owned by root:root, with mode 0o755.
..
/usr/share/pyshared/MMTK/ForceFields/ANMFF.py
/usr/share/pyshared/MMTK/ForceFields/Amber/
/usr/share/pyshared/MMTK/ForceFields/Amber/AmberData.py
/usr/share/pyshared/MMTK/ForceFields/Amber/AmberForceField.py
/usr/share/pyshared/MMTK/ForceFields/Amber/__init__.py
/usr/share/pyshared/MMTK/ForceFields/Amber/frcmod.ff12SB
/usr/share/pyshared/MMTK/ForceFields/Amber/frcmod.ff99SB
/usr/share/pyshared/MMTK/ForceFields/Amber/frcmod.ff99SBildn
/usr/share/pyshared/MMTK/ForceFields/Amber/frcmod.ff99SBnmr
/usr/share/pyshared/MMTK/ForceFields/Amber/frcmod.ff99SP
/usr/share/pyshared/MMTK/ForceFields/Amber/frcmod.heme_ff94
/usr/share/pyshared/MMTK/ForceFields/Amber/opls_parm.dat
/usr/share/pyshared/MMTK/ForceFields/Amber/parm10.dat
/usr/share/pyshared/MMTK/ForceFields/Amber/parm91.dat
/usr/share/pyshared/MMTK/ForceFields/Amber/parm94.dat
/usr/share/pyshared/MMTK/ForceFields/Amber/parm99.dat
/usr/share/pyshared/MMTK/ForceFields/BondFF.py
/usr/share/pyshared/MMTK/ForceFields/BondedInteractions.py
/usr/share/pyshared/MMTK/ForceFields/CalphaFF.py
/usr/share/pyshared/MMTK/ForceFields/DeformationFF.py
/usr/share/pyshared/MMTK/ForceFields/ForceField.py
/usr/share/pyshared/MMTK/ForceFields/ForceFieldTest.py
/usr/share/pyshared/MMTK/ForceFields/LennardJonesFF.py
/usr/share/pyshared/MMTK/ForceFields/MMForceField.py
/usr/share/pyshared/MMTK/ForceFields/NonBondedInteractions.py
/usr/share/pyshared/MMTK/ForceFields/Restraints.py
/usr/share/pyshared/MMTK/ForceFields/SPCEFF.py
/usr/share/pyshared/MMTK/ForceFields/__init__.py
/usr/share/pyshared/MMTK/ForceFields/force_fields