commit 97dfad7856df5d9c681fa74d576a23247cc55a33
author R David Murray <rdmurray@bitdance.com> Sat Sep 20 17:44:53 2014 -0400
committer R David Murray <rdmurray@bitdance.com> Sat Sep 20 17:44:53 2014 -0400
tree 6cf1185cd268ea1d5937bb0f415c21ac002012bf
parent 9833fcbca3317bb664252437a3c58d68bfee13a8

#21079: is_attachment now looks only at the value, ignoring parameters.

Lib/email/message.py

diff --git a/Lib/email/message.py b/Lib/email/message.py
index aa46deb..124071d 100644
--- a/Lib/email/message.py
+++ b/Lib/email/message.py
@@ -941,9 +941,7 @@
     @property
     def is_attachment(self):
         c_d = self.get('content-disposition')
-        if c_d is None:
-            return False
-        return c_d.lower() == 'attachment'
+        return False if c_d is None else c_d.content_disposition == 'attachment'
 
     def _find_body(self, part, preferencelist):
         if part.is_attachment: