/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/ is in python3-maas-provisioningserver 2.0.0~beta3+bzr4941-0ubuntu1.
This file is owned by root:root, with mode 0o755.
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/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/__init__.py
/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/centos.py
/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/custom.py
/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/suse.py
/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/tests/
/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/tests/__init__.py
/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/tests/test_base.py
/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/tests/test_centos.py
/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/tests/test_custom.py
/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/tests/test_suse.py
/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/tests/test_ubuntu.py
/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/tests/test_windows.py
/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/ubuntu.py
/usr/lib/python3/dist-packages/provisioningserver/drivers/osystem/windows.py