On Thu, Nov 18, 2010 at 4:24 AM, BartC <b...@freeuk.com> wrote: > "John Nagle" <na...@animats.com> wrote in message > news:4ce37e01$0$1666$742ec...@news.sonic.net... > > On 11/16/2010 10:24 PM, swapnil wrote: >> > > AFAIK, the merging plan was approved by Guido early this year. I guess >>> Google is expecting the community to drive the project from here on. >>> That was the whole idea for merging it to mainline. From my last >>> conversation with Collin, they are targeting Python 3.3 >>> >> >> I think it's dead. They're a year behind on quarterly releases. >> The last release was Q3 2009. The project failed to achieve its >> stated goal of a 5x speedup. Not even close. More like 1.5x >> (http://www.python.org/dev/peps/pep-3146) >> > > There must have been good reasons to predict a 5x increase. But why did it > take so long to find out the approach wasn't going anywhere? >
It's not that it wasn't going anywhere. Improvements were accomplished. Also, LLVM needed to be modified more than a little bit for the purpose. Also, the developers were constrained a bit by the need to preserve compatibility with some pretty weird code - like methods being replaced mid-loop. It's not a small project.
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