Issue #4407: Fix source file that caused the compileall step in Windows
installer to fail.
diff --git a/Lib/test/crashers/iter.py b/Lib/test/crashers/iter.py
index 081dcbc..0d8540e 100644
--- a/Lib/test/crashers/iter.py
+++ b/Lib/test/crashers/iter.py
@@ -46,7 +46,7 @@
 
 if __name__ == '__main__':
     if len(sys.argv) < 2:
-        print __doc__.replace('<N>', str(N))
+        print(__doc__.replace('<N>', str(N)))
     else:
         n = int(sys.argv[1])
         func = globals()['case%d' % n]