diff -r c95ce9b0a085 Lib/http/cookies.py
--- a/Lib/http/cookies.py	Fri Oct 31 13:13:09 2014 +0100
+++ b/Lib/http/cookies.py	Fri Oct 31 12:51:54 2014 -0400
@@ -486,8 +486,12 @@
 
     def __setitem__(self, key, value):
         """Dictionary style assignment."""
-        rval, cval = self.value_encode(value)
-        self.__set(key, rval, cval)
+        if isinstance(value, Morsel):
+            # allow assignment of constructed Morsels (e.g. for pickling)
+            dict.__setitem__(self, key, value)
+        else:
+            rval, cval = self.value_encode(value)
+            self.__set(key, rval, cval)
 
     def output(self, attrs=None, header="Set-Cookie:", sep="\015\012"):
         """Return a string suitable for HTTP."""
diff -r c95ce9b0a085 Lib/test/pickletester.py
--- a/Lib/test/pickletester.py	Fri Oct 31 13:13:09 2014 +0100
+++ b/Lib/test/pickletester.py	Fri Oct 31 12:51:54 2014 -0400
@@ -1284,7 +1284,7 @@
         loaded = self.loads(DATA5)
         self.assertEqual(type(loaded), SimpleCookie)
         self.assertEqual(list(loaded.keys()), ["key"])
-        self.assertEqual(loaded["key"].value, "Set-Cookie: key=value")
+        self.assertEqual(loaded["key"].value, "value")
 
         for (exc, data) in DATA7.items():
             loaded = self.loads(data)
diff -r c95ce9b0a085 Lib/test/test_http_cookies.py
--- a/Lib/test/test_http_cookies.py	Fri Oct 31 13:13:09 2014 +0100
+++ b/Lib/test/test_http_cookies.py	Fri Oct 31 12:51:54 2014 -0400
@@ -3,7 +3,7 @@
 from test.support import run_unittest, run_doctest, check_warnings
 import unittest
 from http import cookies
-
+import pickle
 import warnings
 
 class CookieTests(unittest.TestCase):
@@ -187,6 +187,17 @@
             self.assertEqual(dict(C), {})
             self.assertEqual(C.output(), '')
 
+    def test_pickle_cookie_highest_protocol(self):
+        rawdata = 'Customer="WILE_E_COYOTE"'
+        expected_output = 'Set-Cookie: %s' % rawdata
+
+        C = cookies.SimpleCookie()
+        C.load(rawdata)
+        self.assertEqual(C.output(), expected_output)
+
+        C1 = pickle.loads(pickle.dumps(C, protocol=pickle.HIGHEST_PROTOCOL))
+        self.assertEqual(C1.output(), expected_output)
+
 
 class MorselTests(unittest.TestCase):
     """Tests for the Morsel object."""