<i>Also, Python and Ruby don't have the equivalent of an ASSERT (you could roll your own but it's not standard practice).</i><p>Ahem:<p><a href="http://docs.python.org/reference/simple_stmts.html#the-assert-statement" rel="nofollow">http://docs.python.org/reference/simple_stmts.html#the-asser...</a>