/usr/share/psi/python/grendel/interface/ is in psi4-data 1:0.3-5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/psi/python/grendel/interface/__init__.py
/usr/share/psi/python/grendel/interface/computation.py
/usr/share/psi/python/grendel/interface/computation_details.py
/usr/share/psi/python/grendel/interface/geometry_parser.py
/usr/share/psi/python/grendel/interface/input_generator.py
/usr/share/psi/python/grendel/interface/legacy_xml.py
/usr/share/psi/python/grendel/interface/local_parallel_queue.py
/usr/share/psi/python/grendel/interface/output_parser.py
/usr/share/psi/python/grendel/interface/package_interface.py
/usr/share/psi/python/grendel/interface/qchem/
/usr/share/psi/python/grendel/interface/qchem/__init__.py
/usr/share/psi/python/grendel/interface/qchem/input_generator.py
/usr/share/psi/python/grendel/interface/qchem/output_parser.py
/usr/share/psi/python/grendel/interface/qchem/runner.py
/usr/share/psi/python/grendel/interface/qchem/templates/
/usr/share/psi/python/grendel/interface/qchem/templates/basic.mako
/usr/share/psi/python/grendel/interface/qchem/templates/qcopt.mako
/usr/share/psi/python/grendel/interface/queue.py
/usr/share/psi/python/grendel/interface/result_getter.py
/usr/share/psi/python/grendel/interface/runner.py