Index: trunk/tests/test_emitter.py
===================================================================
--- trunk/tests/test_emitter.py	(revision 21)
+++ trunk/tests/test_emitter.py	(revision 23)
@@ -163,16 +163,16 @@
         emitter = _syck.Emitter(StringIO.StringIO(), headless=False)
         emitter.emit(CYCLE)
-        self.assert_('---' in emitter.output.getvalue())
+        self.assert_(emitter.output.getvalue().find('---') != -1)
         emitter = _syck.Emitter(StringIO.StringIO(), headless=True)
         emitter.emit(CYCLE)
-        self.assert_('---' not in emitter.output.getvalue())
+        self.assert_(emitter.output.getvalue().find('---') == -1)
 
     def testUseHeader(self):
         emitter = _syck.Emitter(StringIO.StringIO(), headless=True)
         emitter.emit(EXAMPLE)
-        self.assert_('---' not in emitter.output.getvalue())
+        self.assert_(emitter.output.getvalue().find('---') == -1)
         emitter = _syck.Emitter(StringIO.StringIO(), use_header=True)
         emitter.emit(EXAMPLE)
-        self.assert_('---' in emitter.output.getvalue())
+        self.assert_(emitter.output.getvalue().find('---') != -1)
 
     def testExplicitTyping(self):
@@ -235,5 +235,6 @@
         document = parser.parse()
         self.assertEqual(len(document.value), len(TAGS))
-        for index, node in enumerate(document.value):
+        for index in range(len(document.value)):
+            node = document.value[index]
             self.assertEqual(node.tag, TAGS[index])