diff -r 9aee273bf8b7 Lib/test/test_gettext.py
--- a/Lib/test/test_gettext.py	Wed Jun 24 12:49:28 2015 -0400
+++ b/Lib/test/test_gettext.py	Thu Jun 25 01:18:20 2015 +0200
@@ -440,6 +440,12 @@
         self.assertEqual(t.__class__, DummyGNUTranslations)
 
 
+class MiscTestCase(unittest.TestCase):
+    def test__all__(self):
+        blacklist = {'c2py'}
+        support.check__all__(self, gettext, blacklist=blacklist)
+
+
 def test_main():
     support.run_unittest(__name__)