use assert[Not]IsInstance where appropriate
diff --git a/Lib/test/test_codecs.py b/Lib/test/test_codecs.py
index 1893311..175f92b 100644
--- a/Lib/test/test_codecs.py
+++ b/Lib/test/test_codecs.py
@@ -1141,14 +1141,14 @@
reader = codecs.getreader("base64_codec")(StringIO.StringIO(sin))
sout = reader.read()
self.assertEqual(sout, "\x80")
- self.assertTrue(isinstance(sout, str))
+ self.assertIsInstance(sout, str)
def test_readline(self):
sin = "\x80".encode("base64_codec")
reader = codecs.getreader("base64_codec")(StringIO.StringIO(sin))
sout = reader.readline()
self.assertEqual(sout, "\x80")
- self.assertTrue(isinstance(sout, str))
+ self.assertIsInstance(sout, str)
all_unicode_encodings = [
"ascii",