Python StringIO for Clojure

Question

Is there something equivalent to Python StingIO for Clojure?

I am trying to write a report generating / competent programming system similar to Sweave and Pweave for Clojure. I am currently using a temporary file, but I would prefer to use something similar to StringIO.

Answer 1

c-out-str is pretty handy.

(let [foo (with-out-str (println "Hello world!"))] foo) 

Additional documentation here

Answer 2

java.io.StringWriter: http://download.oracle.com/javase/6/docs/api/java/io/StringWriter.html