Index: Lib/test/test_capi.py =================================================================== --- Lib/test/test_capi.py (revision 81855) +++ Lib/test/test_capi.py (working copy) @@ -36,6 +36,7 @@ self.assertEqual(testfunction.attribute, "test") self.assertRaises(AttributeError, setattr, inst.testfunction, "attribute", "test") + @unittest.skipUnless(threading, 'Threading required for this test.') def test_no_FatalError_infinite_loop(self): p = subprocess.Popen([sys.executable, "-c", 'import _testcapi;'