You mean a parser like this: https://codespeak.net/viewvc/pypy/trunk/pypy/interpreter/pyparser/ https://codespeak.net/viewvc/pypy/trunk/pypy/interpreter/pyp...

You mean a parser like this: https://codespeak.net/viewvc/pypy/trunk/pypy/interpreter/pyparser/ https://codespeak.net/viewvc/pypy/trunk/pypy/interpreter/pyp... PyPy is taking precisely this approach, and GvR in an interview or two, has blessed it as the way forward. So I think OP is a little late to the game.