diff --git a/tests/test-atomictempfile.py b/tests/test-atomictempfile.py
--- a/tests/test-atomictempfile.py
+++ b/tests/test-atomictempfile.py
@@ -7,10 +7,14 @@
 import unittest
 
 from mercurial import (
+    pycompat,
     util,
 )
 atomictempfile = util.atomictempfile
 
+if pycompat.ispy3:
+    xrange = range
+
 class testatomictempfile(unittest.TestCase):
     def setUp(self):
         self._testdir = tempfile.mkdtemp('atomictempfiletest')