/usr/lib/python3/dist-packages/cloudinit/sources/ is in cloud-init 18.2-14-g6d48d265-0ubuntu1.
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/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceAliYun.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceAltCloud.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceAzure.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceBigstep.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceCloudSigma.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceCloudStack.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceConfigDrive.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceDigitalOcean.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceEc2.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceGCE.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceHetzner.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceIBMCloud.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceMAAS.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceNoCloud.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceNone.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceOVF.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceOpenNebula.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceOpenStack.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceScaleway.py
/usr/lib/python3/dist-packages/cloudinit/sources/DataSourceSmartOS.py
/usr/lib/python3/dist-packages/cloudinit/sources/__init__.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/__init__.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/azure.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/digitalocean.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/hetzner.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/openstack.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/__init__.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/__init__.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/boot_proto.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/config.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/config_custom_script.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/config_file.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/config_namespace.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/config_nic.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/config_passwd.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/config_source.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/guestcust_error.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/guestcust_event.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/guestcust_state.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/guestcust_util.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/ipv4_mode.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/nic.py
/usr/lib/python3/dist-packages/cloudinit/sources/helpers/vmware/imc/nic_base.py