sloisel has created two-way python bindings to v8.
   http://www.math.temple.edu/~loisel/pyv8-0.1.tar.gz
a version with a Makefile for linux users is here:
   http://lkcl.net/pyv8-0.1.tar.gz

pyv8 is the project which ties pyjamas (http://pyjd.org) python-to-
javascript
compiler (called pyjs.py) together with python bindings to v8, and,
due to v8 being able to call back out, it's also been possible to bind
back in to standard c python modules and third party c-based python
modules.

the simple test, test-pyjs.py, containing a deliberately inefficient
fibonacci series algorithm, gives a ten times performance increase
compared to running python fib.py.  the output is shown via a
python-tk popup window, to demonstrate that it's possible to call
out to c-based python modules.

this is an experimental project.  a much better version of pyv8 would
do away with the need to use python to perform the conversion of its
incoming programs into javascript - presumably by bootstrap-compiling
pyjs.py itself into javascript, and running that native through
something
based on the v8 "shell" example rather than using python-boost to
wrap libv8.  under these circumstances, python-boost would only really
be required to perform the bootstrap-compilation process, required
for pyv8 developers and maintainers only: standard _use_ of pyv8 as
a drop-in replacement for /usr/bin/python would use the precompiled
javascript and the "shell".

so whilst pyv8 is a way off from being a formal release, the
significance
of the performance gain, the benefits of being able to bind to
standard
c-based python modules. the outright simplicity of pyjs.py (only 1200
lines) makes it worthwhile letting people know that the experiment was
a
resounding success.

it's also worth mentioning that pypy with its javascript back-end
would also
definitely benefit from using v8.

l.

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