diff --git a/testsuite/datmantests/test_backup_and_extract.py b/testsuite/datmantests/test_backup_and_extract.py
index 398eb83..c745b7d 100644
--- a/testsuite/datmantests/test_backup_and_extract.py
+++ b/testsuite/datmantests/test_backup_and_extract.py
@@ -283,7 +283,7 @@ kind = {{ stdout = "blahblah.txt" }}
 
             self.assertEqual(len(contents), 1)
             key, value = next(iter(contents.items()))
-            self.assertTrue(key.startswith(f"srca+"))
+            self.assertTrue(key.startswith("srca+"))
 
             self.assertIsInstance(value, DirectoryDescriptor)
             key, value = next(iter(value.contents.items()))
diff --git a/testsuite/helpers/datman_helpers.py b/testsuite/helpers/datman_helpers.py
index faef434..bbf95d6 100644
--- a/testsuite/helpers/datman_helpers.py
+++ b/testsuite/helpers/datman_helpers.py
@@ -1,4 +1,3 @@
-import random
 import subprocess
 from pathlib import Path
 from random import Random