Fantastic. May I ask what you are hoping to use it for? I checked out Scientific python: http://starship.python.net/~hinsen/ScientificPython/
It has a module with multivariate polynomials with support for a good functionality but I think the input style won't suit my needs. In any case, perhaps it will be helpful for you. Chris -- http://mail.python.org/mailman/listinfo/python-list