diff --git a/Lib/tempfile.py b/Lib/tempfile.py
index f4f1058..0ebf6b4 100644
--- a/Lib/tempfile.py
+++ b/Lib/tempfile.py
@@ -124,7 +124,7 @@
     def __iter__(self):
         return self
 
-    def next(self):
+    def __next__(self):
         m = self.mutex
         c = self.characters
         choose = self.rng.choice
@@ -191,7 +191,7 @@
             dir = _os.path.normcase(_os.path.abspath(dir))
         # Try only a few names per directory.
         for seq in xrange(100):
-            name = namer.next()
+            name = next(namer)
             filename = _os.path.join(dir, name)
             try:
                 fd = _os.open(filename, flags, 0600)
@@ -230,7 +230,7 @@
     names = _get_candidate_names()
 
     for seq in xrange(TMP_MAX):
-        name = names.next()
+        name = next(names)
         file = _os.path.join(dir, pre + name + suf)
         try:
             fd = _os.open(file, flags, 0600)
@@ -322,7 +322,7 @@
     names = _get_candidate_names()
 
     for seq in xrange(TMP_MAX):
-        name = names.next()
+        name = next(names)
         file = _os.path.join(dir, prefix + name + suffix)
         try:
             _os.mkdir(file, 0700)
@@ -357,7 +357,7 @@
 
     names = _get_candidate_names()
     for seq in xrange(TMP_MAX):
-        name = names.next()
+        name = next(names)
         file = _os.path.join(dir, prefix + name + suffix)
         if not _exists(file):
             return file