Clojure example of lightweight data modelling

clojure_maps_and_lists.clj

(ns cljtests.data)

(defn main []
  (let [some-items [1 2 3 4]
        some-mapping {:ST "started", :IP "in progress", :DN "done"}]
      (doseq [item some-items]
        (println item))
      (doseq [[key val] some-mapping]
        (println (str key " => " val)))))

(defn -main
  [& args]
  (main))

Nice, that example is certainly more symmetrical. Minor suggestion:

Place all trailing parentheses on a single line instead of distinct lines.

From https://github.com/bbatsov/clojure-style-guide

Thanks! Updated to reflect that style consistency.