1 files changed, 1 insertions, 5 deletions
diff --git a/deluge/core/filtermanager.py b/deluge/core/filtermanager.py
index 90589ef1f..c4f342097 100644
--- a/deluge/core/filtermanager.py
+++ b/deluge/core/filtermanager.py
@@ -7,12 +7,8 @@
 # See LICENSE for more details.
 #
 
-from __future__ import unicode_literals
-
 import logging
 
-from six import string_types
-
 import deluge.component as component
 from deluge.common import TORRENT_STATE
 
@@ -136,7 +132,7 @@ class FilterManager(component.Component):
 
         # Sanitize input: filter-value must be a list of strings
         for key, value in filter_dict.items():
-            if isinstance(value, string_types):
+            if isinstance(value, str):
                 filter_dict[key] = [value]
 
         # Optimized filter for id