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diff --git a/src/examples/builtin_parse_action_demo.py b/src/examples/builtin_parse_action_demo.py
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+#
+#  builtin_parse_action_demo.py
+#  Copyright, 2012 - Paul McGuire
+#
+#  Simple example of using builtin functions as parse actions.
+#
+
+from pyparsing import *
+
+integer = Word(nums).setParseAction(lambda t : int(t[0]))
+
+# make an expression that will match a list of ints (which
+# will be converted to actual ints by the parse action attached
+# to integer)
+nums = OneOrMore(integer)
+
+
+test = "2 54 34 2 211 66 43 2 0"
+print test
+
+# try each of these builtins as parse actions
+for fn in (sum, max, min, len, sorted, reversed, list, tuple, set, any, all):
+    fn_name = fn.__name__
+    if fn is reversed:
+        # reversed returns an iterator, we really want to show the list of items
+        fn = lambda x : list(reversed(x))
+
+    # show how each builtin works as a free-standing parse action
+    print fn_name, nums.setParseAction(fn).parseString(test)