Lython

[faulkner]

I have Lython!
I want to make sure that anybody else who wants it can access it, so,
unless Mr. Egan objects, I'm hosting it here:
http://home.comcast.net/~faulkner612/programming/python/lython.zip
I had to patch it a bit because the number of arguments to
compiler.ast.Function.__init__ changed between 2.3 and 2.4, when
decorators were introduced. I haven't tested it on 2.5 because the last
time I upgraded python, my gentoo died.
I also took the liberty of adding some features such as primitive
interactivity, a '-c code' option, a '-h' option, an rc file
'~/.lythonrc.ly', and a '-o file' option which dumps bytecode to file.
I've slated developing support for *args, **kwargs, default arguments,
+= and -= etc., reader macros ala common lisp, classes,
try...except...finally, and raise.

For the curious, here are some other implementations of lisp in python:
http://ibiblio.org/obp/py4fun/lisp/lisp.html
http://hkn.eecs.berkeley.edu/~dyoo/python/pyscheme/
http://www.xs4all.nl/~yduppen/site/psyche.html
http://www.biostat.wisc.edu/~annis/creations/PyLisp/

These implementations are great, but Lython has macro capabilities,
generates python byte code, and demonstrates the use of spark, a
fantastic parsing package.