Index: django/http/__init__.py
===================================================================
--- django/http/__init__.py	(revision 4454)
+++ django/http/__init__.py	(working copy)
@@ -52,7 +52,7 @@
     POST = MultiValueDict()
     FILES = MultiValueDict()
     for submessage in msg.get_payload():
-        if isinstance(submessage, email.Message.Message):
+        if submessage and isinstance(submessage, email.Message.Message):
             name_dict = parse_header(submessage['Content-Disposition'])[1]
             # name_dict is something like {'name': 'file', 'filename': 'test.txt'} for file uploads
             # or {'name': 'blah'} for POST fields
Index: django/newforms/widgets.py
===================================================================
--- django/newforms/widgets.py	(revision 4454)
+++ django/newforms/widgets.py	(working copy)
@@ -235,7 +235,7 @@
 
     def __unicode__(self):
         "Outputs a <ul> for this set of radio fields."
-        return u'<ul>\n%s\n</ul>' % u'\n'.join([u'<li>%s</li>' % w for w in self])
+        return u'<ul>\n%s\n</ul>' % u'\n'.join([u'<li>%s</li>' % unicode(w) for w in self])
 
 class RadioSelect(Select):
     def render(self, name, value, attrs=None, choices=()):
Index: tests/modeltests/test_client/models.py
===================================================================
--- tests/modeltests/test_client/models.py	(revision 4454)
+++ tests/modeltests/test_client/models.py	(working copy)
@@ -89,7 +89,7 @@
         
         # Request a page that requires a login
         response = self.client.login('/test_client/login_protected_view/', 'testclient', 'password')
-        self.assertTrue(response)
+        self.failUnless(response)
         self.assertEqual(response.status_code, 200)
         self.assertEqual(response.context['user'].username, 'testclient')
         self.assertEqual(response.template.name, 'Login Template')
@@ -98,4 +98,4 @@
         "Request a page that is protected with @login, but use bad credentials"
 
         response = self.client.login('/test_client/login_protected_view/', 'otheruser', 'nopassword')
-        self.assertFalse(response)
+        self.failIf(response)