Avoid deprecation warnings.
diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py
index 9d62779..0ac458f 100644
--- a/Lib/test/test_descr.py
+++ b/Lib/test/test_descr.py
@@ -2066,7 +2066,7 @@
                                  "attr on a property" % attr)
 
         class D(object):
-            __getitem__ = property(lambda s: 1/0)
+            __getitem__ = property(lambda s: 1.0/0.0)
 
         d = D()
         try: