From c2e2473bc210ff83c2cbc73c4b916893f773b480 Mon Sep 17 00:00:00 2001
From: R David Murray <rdmurray@bitdance.com>
Date: Wed, 7 Sep 2016 13:39:36 -0400
Subject: 27988: Make sure iter_attachments does not mutate the payload list.

---
 Lib/email/message.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'Lib/email')

diff --git a/Lib/email/message.py b/Lib/email/message.py
index aefaf57d00..6cd6cb77c0 100644
--- a/Lib/email/message.py
+++ b/Lib/email/message.py
@@ -1022,7 +1022,7 @@ class MIMEPart(Message):
         maintype, subtype = self.get_content_type().split('/')
         if maintype != 'multipart' or subtype == 'alternative':
             return
-        parts = self.get_payload()
+        parts = self.get_payload().copy()
         if maintype == 'multipart' and subtype == 'related':
             # For related, we treat everything but the root as an attachment.
             # The root may be indicated by 'start'; if there's no start or we
-- 
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