From c506f4574a8df61c687ebadab5e0d34da086f586 Mon Sep 17 00:00:00 2001
From: Malcolm Tredinnick <malcolm.tredinnick@gmail.com>
Date: Wed, 19 Dec 2007 04:51:35 +0000
Subject: [PATCH] Fixed #6139 -- When sending email, made sure that the "to"
 and "bcc" sequences have the same type before concatenating.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@6953 bcc190cf-cafb-0310-a4f2-bffc1f526a37
---
 django/core/mail.py | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/django/core/mail.py b/django/core/mail.py
index 77ab8007e65..e408393d96f 100644
--- a/django/core/mail.py
+++ b/django/core/mail.py
@@ -209,8 +209,14 @@ class EmailMessage(object):
         bytestrings). The SafeMIMEText class will handle any necessary encoding
         conversions.
         """
-        self.to = to or []
-        self.bcc = bcc or []
+        if to:
+            self.to = list(to)
+        else:
+            self.to = []
+        if bcc:
+            self.bcc = list(bcc)
+        else:
+            self.bcc = []
         self.from_email = from_email or settings.DEFAULT_FROM_EMAIL
         self.subject = subject
         self.body = body