/usr/lib/python3/dist-packages/provisioningserver/rpc/ is in python3-maas-provisioningserver 2.0.0~beta3+bzr4941-0ubuntu1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/python3/dist-packages/provisioningserver/rpc/__init__.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/arguments.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/boot_images.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/cluster.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/clusterservice.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/common.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/dhcp.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/exceptions.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/interfaces.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/osystems.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/region.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/tags.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/testing/
/usr/lib/python3/dist-packages/provisioningserver/rpc/testing/__init__.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/testing/cluster.crt
/usr/lib/python3/dist-packages/provisioningserver/rpc/testing/doubles.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/testing/region.crt
/usr/lib/python3/dist-packages/provisioningserver/rpc/testing/tls.py
/usr/lib/python3/dist-packages/provisioningserver/rpc/testing/trust.crt
/usr/lib/python3/dist-packages/provisioningserver/rpc/utils.py