1 files changed, 3 insertions, 5 deletions
diff --git a/src/mailman/model/requests.py b/src/mailman/model/requests.py
index de0c51d99..e984d0aea 100644
--- a/src/mailman/model/requests.py
+++ b/src/mailman/model/requests.py
@@ -23,15 +23,13 @@ __all__ = [
     ]
 
 
-import six
-
 from datetime import timedelta
 from mailman.database.model import Model
 from mailman.database.transaction import dbconnection
 from mailman.database.types import Enum
 from mailman.interfaces.pending import IPendable, IPendings
 from mailman.interfaces.requests import IListRequests, RequestType
-from six.moves.cPickle import dumps, loads
+from pickle import dumps, loads
 from sqlalchemy import Column, ForeignKey, Integer, Unicode
 from sqlalchemy.orm import relationship
 from zope.component import getUtility
@@ -50,8 +48,8 @@ class DataPendable(dict):
         # such a way that it will be properly reconstituted when unpended.
         clean_mapping = {}
         for key, value in mapping.items():
-            assert isinstance(key, six.string_types)
-            if not isinstance(value, six.text_type):
+            assert isinstance(key, (bytes, str))
+            if not isinstance(value, str):
                 key = '_pck_' + key
                 value = dumps(value).decode('raw-unicode-escape')
             clean_mapping[key] = value