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27988: Make sure iter_attachments does not mutate the payload list.

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R David Murray 2016-09-07 13:39:36 -04:00
parent 48c88307d8
commit c2e2473bc2
3 changed files with 13 additions and 1 deletions
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2
Lib/email/message.py
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@ -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