style: sort imports in compute node modules

gns3server/compute/iou/__init__.py

@@ -18,15 +18,14 @@
 IOU server module.
 """
 
-import os
 import asyncio
+import logging
+import os
 
 from ..base_manager import BaseManager
 from .iou_error import IOUError
 from .iou_vm import IOUVM
 
-import logging
-
 log = logging.getLogger(__name__)