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-rw-r--r--mailman/interfaces/command.py10
1 files changed, 10 insertions, 0 deletions
diff --git a/mailman/interfaces/command.py b/mailman/interfaces/command.py
index 202d2a148..a9ad292f4 100644
--- a/mailman/interfaces/command.py
+++ b/mailman/interfaces/command.py
@@ -17,6 +17,16 @@
"""Interfaces defining email commands."""
+from __future__ import absolute_import, unicode_literals
+
+__metaclass__ = type
+__all__ = [
+ 'ContinueProcessing',
+ 'IEmailCommand',
+ 'IEmailResults',
+ ]
+
+
from munepy import Enum
from zope.interface import Interface, Attribute