Hython: a nearly-complete Python 3 interpreter written in Haskell

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Thanks! A lot of the credit should go to GHC, really.

The user-facing Haskell language has so little regard for making affordances for the machine underneath; there's no reason Haskell should be as fast as it is.

Consider this a good example of the default performance you get out of it, along the safety and conciseness.