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Wed Jul 18 01:34:15 CEST 2012 · https://mail.python.org/pipermail/python-dev/2012-July/121010.html

Victor Stinner wrote:

> == Other Python VM and compilers ==

As far as I know, these are all still active, although possibly experimental:

Pynie               (Python for the Parrot VM)
WPython             (16-bit word-codes instead of byte-codes)
HotPy               (high-performance optimizing VM for Python)
Skulpt              (Javascript implementation)
HoPe                (Python in Haskell)
Berp                (another Python in Haskell)

WPython in particular seems to be very promising, and quite fast. I don't 
understand why it doesn't get more attention (although I admit I can't 
criticise, since I haven't installed or used it myself).

http://www.pycon.it/media/stuff/slides/beyond-bytecode-a-wordcode-based-python.pdf

In the Java world, there are byte-code optimizers such as Soot, BLOAT and 
ProGuard which apparently can speed up Java significantly. As far as I can 
tell, in the Python world byte-code optimization is a severely neglected area. 
For good reason? No idea.

-- 
Steven

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[Python-Dev] A new JIT compiler for a faster CPython?