diff --git a/src/tree.py b/src/tree.py
index 77b2b5078b36b822f36ec9bb2966633b02f7895d..1a43375c226a1bca494459af9c4e174ea43862e3 100644
--- a/src/tree.py
+++ b/src/tree.py
@@ -1,10 +1,9 @@
-import logging
-from genericpath import exists
 import json
+import logging
 import os
-import uuid
-import sys
 import re
+import sys
+import uuid
 
 id_set = set()
 logger = logging.getLogger(__name__)