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I love these for playing with syntax.

Here's one for python: http://try-python.mired.org/

and one for ruby: http://tryruby.sophrinix.com/

Do you know if there are any for the other functional languages?

I've been working on one to encompass erlang, ocaml, haskell, scala, python, ruby, lfe, arc, mzscheme, and clisp. There's only a couple of show stopper bugs left in the system. If I can get through the bugs this weekend and make the web interface prettier, I'll announce it early next week.

One of the simplest and most forceful motivators is simply having someone expecting something of you.

I'm looking forward to it, sounds great!

(there's your motivation :) )

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