added run if

zfs-snapshot-backup.py

@@ -121,3 +121,7 @@ def create_backups():
     for member, snapshots in elab_snapshots.items():
         members_backups = existing_backups.get(member, [])
         backup_latest_snapshot(member, snapshots, members_backups)
+
+
+if __name__ == "__main__":
+    create_backups()