PyPy - the new Python implementation on the block
Language/VM R&D, whole program type inference, translation to low level backends, fun
Armin Rigo, Carl Friedrich Bolz and Holger Krekel
We present our first self-contained Python virtual machine that uses parts of itself to translate itself to low level languages ("the Muenchhausen approach"). The PyPy approach could solve problems at language/interpreter-level that formerly required complex frameworkish solutions at user-level.