Re: [Python-Dev] PEP 510 (function specialization) rejected

2017-10-17 Thread Nick Coghlan
On 18 October 2017 at 06:25, Guido van Rossum wrote: > It takes courage to admit failures like this! I think this is a good call. > It echoes the experiences with Unladen Swallow and Pyston. > And Armin Rigo's experience with psyco before that. Despite what people may think, CPython really isn'

Re: [Python-Dev] PEP 510 (function specialization) rejected

2017-10-17 Thread Guido van Rossum
It takes courage to admit failures like this! I think this is a good call. It echoes the experiences with Unladen Swallow and Pyston. Despite what people may think, CPython really isn't slow, given the large set of constraints on the implementation. On Tue, Oct 17, 2017 at 1:10 PM, Victor Stinner

Re: [Python-Dev] PEP 510 (function specialization) rejected

2017-10-17 Thread Victor Stinner
2017-10-17 22:25 GMT+02:00 Guido van Rossum : > It takes courage to admit failures like this! I think this is a good call. > It echoes the experiences with Unladen Swallow and Pyston. Despite what > people may think, CPython really isn't slow, given the large set of > constraints on the implementat

[Python-Dev] PEP 510 (function specialization) rejected

2017-10-17 Thread Victor Stinner
Hi, I rejected my own PEP 510 "Specialize functions with guards" that I wrote in January 2016: https://github.com/python/peps/commit/c99fb8bf5b5c16c170e1603a1c66a74e93a4ae84 "This PEP was rejected by its author since the design didn't show any significant speedup, but also because of the lack of