From 2bcab3d589de9b16ca7b9405b452fd47e2c094b0 Mon Sep 17 00:00:00 2001
From: Barry Warsaw
Date: Tue, 22 Nov 2016 09:43:49 -0500
Subject: Start porting to Python 3.6

---
 src/mailman/handlers/subject_prefix.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/mailman/handlers/subject_prefix.py b/src/mailman/handlers/subject_prefix.py
index ff728d92e..5dcfe410a 100644
--- a/src/mailman/handlers/subject_prefix.py
+++ b/src/mailman/handlers/subject_prefix.py
@@ -158,7 +158,7 @@ class SubjectPrefix:
         prefix_pattern = re.escape(prefix)
         # Unescape '%'.
         prefix_pattern = '%'.join(prefix_pattern.split(r'\%'))
-        p = re.compile('%\d*d')
+        p = re.compile(r'%\d*d')
         if p.search(prefix, 1):
             # The prefix has number, so we should search prefix w/number in
             # subject.  Also, force new style.
-- 
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