Merged revisions 77727 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r77727 | ezio.melotti | 2010-01-24 18:58:36 +0200 (Sun, 24 Jan 2010) | 1 line

  use assert[Not]IsInstance where appropriate
........
diff --git a/Lib/test/test_tempfile.py b/Lib/test/test_tempfile.py
index 0076c48..de65158 100644
--- a/Lib/test/test_tempfile.py
+++ b/Lib/test/test_tempfile.py
@@ -142,8 +142,7 @@
 
         self.assertFalse(len(cand) == 0)
         for c in cand:
-            self.assertTrue(isinstance(c, str),
-                         "%s is not a string" % c)
+            self.assertIsInstance(c, str)
 
     def test_wanted_dirs(self):
         # _candidate_tempdir_list contains the expected directories
@@ -184,7 +183,7 @@
     def test_retval(self):
         # _get_candidate_names returns a _RandomNameSequence object
         obj = tempfile._get_candidate_names()
-        self.assertTrue(isinstance(obj, tempfile._RandomNameSequence))
+        self.assertIsInstance(obj, tempfile._RandomNameSequence)
 
     def test_same_thing(self):
         # _get_candidate_names always returns the same object
@@ -326,7 +325,7 @@
         # gettempprefix returns a nonempty prefix string
         p = tempfile.gettempprefix()
 
-        self.assertTrue(isinstance(p, str))
+        self.assertIsInstance(p, str)
         self.assertTrue(len(p) > 0)
 
     def test_usable_template(self):