Patch #1550800: make exec a function.
diff --git a/Lib/test/test_binop.py b/Lib/test/test_binop.py
index 719186b..ccce207 100644
--- a/Lib/test/test_binop.py
+++ b/Lib/test/test_binop.py
@@ -302,7 +302,7 @@
         self.assertEqual(10.0, Rat(10))
 
     def test_future_div(self):
-        exec future_test
+        exec(future_test)
 
     # XXX Ran out of steam; TO DO: divmod, div, future division