Auch in Richtung Lisp allerdings näher an Python dran:
[codebox=clojure file=Unbenannt.txt]#!/usr/bin/env hy
(defn flatten [items]
(if (instance? list items)
(let [result []]
(for [item items] (.extend result (flatten item)))
result)
[items]))
(defn flatten! [items]
(let [result []
f (fn [xs]
(if (instance? list xs)
(for [x xs] (f x))
(.append result xs)))]
(f items)
(assoc items (slice None) result)))
(defmain [&rest argv]
(let [egg [3 4 [[5]]]
spam [[[1 2 egg] (, 6 [7]) 8] 9 False]]
(print (flatten egg))
(print (flatten spam))
(flatten! egg)
(print egg)
(print spam)
(flatten! spam)
(print spam)))[/code]
