/usr/lib/python3/dist-packages/neuron/rxd/ is in python3-neuron 7.5-1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/neuron/rxd/__init__.py
/usr/lib/python3/dist-packages/neuron/rxd/dimension3.py
/usr/lib/python3/dist-packages/neuron/rxd/generalizedReaction.py
/usr/lib/python3/dist-packages/neuron/rxd/geometry.py
/usr/lib/python3/dist-packages/neuron/rxd/geometry3d/
/usr/lib/python3/dist-packages/neuron/rxd/geometry3d/__init__.py
/usr/lib/python3/dist-packages/neuron/rxd/geometry3d/scalarField.py
/usr/lib/python3/dist-packages/neuron/rxd/geometry3d/setup.py
/usr/lib/python3/dist-packages/neuron/rxd/geometry3d/setup_local.py
/usr/lib/python3/dist-packages/neuron/rxd/geometry3d/surface.py
/usr/lib/python3/dist-packages/neuron/rxd/geometry3d/triangularMesh.py
/usr/lib/python3/dist-packages/neuron/rxd/geometry3d/voxelize.py
/usr/lib/python3/dist-packages/neuron/rxd/geometry3d/voxelize2.py
/usr/lib/python3/dist-packages/neuron/rxd/gui.py
/usr/lib/python3/dist-packages/neuron/rxd/initializer.py
/usr/lib/python3/dist-packages/neuron/rxd/morphology.py
/usr/lib/python3/dist-packages/neuron/rxd/multiCompartmentReaction.py
/usr/lib/python3/dist-packages/neuron/rxd/node.py
/usr/lib/python3/dist-packages/neuron/rxd/nodelist.py
/usr/lib/python3/dist-packages/neuron/rxd/options.py
/usr/lib/python3/dist-packages/neuron/rxd/plugins.py
/usr/lib/python3/dist-packages/neuron/rxd/rangevar.py
/usr/lib/python3/dist-packages/neuron/rxd/rate.py
/usr/lib/python3/dist-packages/neuron/rxd/reaction.py
/usr/lib/python3/dist-packages/neuron/rxd/region.py
/usr/lib/python3/dist-packages/neuron/rxd/rxd.py
/usr/lib/python3/dist-packages/neuron/rxd/rxdException.py
/usr/lib/python3/dist-packages/neuron/rxd/rxdmath.py
/usr/lib/python3/dist-packages/neuron/rxd/rxdsection.py
/usr/lib/python3/dist-packages/neuron/rxd/section1d.py
/usr/lib/python3/dist-packages/neuron/rxd/species.py