Hi,

I fixed SymPy to work with the new division. I've also rewritten the
sympify ast_parser to use the new "ast" module, that is in python2.6
and later, so SymPy will eventually work on jython and python3.0. The
old code is used for python2.4 and 2.5. I also implemented "--pdb",
"--tb" and "--k" options to our test suite and improved error
printing, so it should now look very much like py.test.

Please review all my patches, in sympy-patches. Alternatively, you can
pull from here:

http://github.com/certik/sympy/tree/division3

So sympy now works with python2.6 and with new division without a
single failing test. So I think we can finally release.

Would someone be interested in porting sympy to Python 3.0? Basically
it'd be nice if we could just do slight modifications if needed to our
codebase and then just use the py2to3 tool and it would work with 3.0.
And have one codebase that would work with all python versions. The
true division was the last big problem imho, now what remains is to
fix couple things that has changed, but I think (hope!) it should not
be a big deal anymore.

Ondrej

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