Adding a Par construct to Python?

[bearophileHUGS at lycos.com]

Jeremy Martin, nowadays a parallelfor can be useful, and in future
I'll try to introduce similar things in D too, but syntax isn't
enough. You need a way to run things in parallel. But Python has the
GIL.
To implement a good parallel for your language may also need more
immutable data structures (think about "finger trees"), and pure
functions can improve the safety of your code a lot, and so on.

The multiprocessing module Python2.6 already does something like what
you are talking about. For example I have used the parallel map of
that module to almost double the speed of a small program of mine.

Bye,
bearophile