Wow. Weren't C extensions precisely the major problem which lead Google to build Unladen Swallow instead of contributing to PyPy?

Hope we'll soon have several great Python environments, even though I was secretly rooting for PyPy, being in Python (that must be common fantasy after reading some parts of SICP!).

I doubt it. Unladen Swallow was meant to be conservative. As in, production code with 1 billion users conservative.

Still, it's a big step towards other people taking it up.

The post isn't too clear on this, but you should note that this work is not yet in PyPy trunk. You need to check out the branch if you want to test it.

http://codespeak.net/svn/pypy/branch/cpython-extension/

Please add support for pip - it really makes life easy.

Support for pip is a slightly different issue, pip doesn't rely on any C extensions. Out of curiosity, how does pip currently not work?