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-rw-r--r--mailman/rules/approved.py4
1 files changed, 3 insertions, 1 deletions
diff --git a/mailman/rules/approved.py b/mailman/rules/approved.py
index 79dc0d934..f81c1ad04 100644
--- a/mailman/rules/approved.py
+++ b/mailman/rules/approved.py
@@ -17,6 +17,8 @@
"""Look for moderator pre-approval."""
+from __future__ import absolute_import, unicode_literals
+
__metaclass__ = type
__all__ = [
'Approved',
@@ -31,7 +33,7 @@ from mailman.i18n import _
from mailman.interfaces.rules import IRule
-EMPTYSTRING = u''
+EMPTYSTRING = ''