Have MimeWriter raise a DeprecationWarning as per PEP 4 and its documentation.
diff --git a/Lib/test/test_MimeWriter.py b/Lib/test/test_MimeWriter.py
index feca163..5a20bf2 100644
--- a/Lib/test/test_MimeWriter.py
+++ b/Lib/test/test_MimeWriter.py
@@ -10,6 +10,10 @@
 import unittest, sys, StringIO
 from test.test_support import run_unittest
 
+import warnings
+warnings.filterwarnings("ignore", "the MimeWriter module is deprecated.*",
+                        DeprecationWarning)
+
 from MimeWriter import MimeWriter
 
 SELLER = '''\
diff --git a/Lib/test/test___all__.py b/Lib/test/test___all__.py
index 14795a6..071ed04 100644
--- a/Lib/test/test___all__.py
+++ b/Lib/test/test___all__.py
@@ -7,6 +7,8 @@
                         DeprecationWarning, "<string>")
 warnings.filterwarnings("ignore", ".*popen2 module is deprecated.*",
                         DeprecationWarning)
+warnings.filterwarnings("ignore", "the MimeWriter module is deprecated.*",
+                        DeprecationWarning)
 
 class AllTest(unittest.TestCase):