[Python-Dev] PEP 575 (Unifying function/method classes) update

Jeroen Demeyer J.Demeyer at UGent.be
Tue Jun 19 01:53:25 EDT 2018

On 2018-06-18 16:55, INADA Naoki wrote:
> Speeding up most python function and some bultin functions was very
> significant.
> But I doubt making some 3rd party call 20% faster can make real
> applications significant faster.

These two sentences are almost contradictory. I find it strange to claim 
that a given optimization was "very significant" in specific cases while 
saying that the same optimization won't matter in other cases.

People *have* done benchmarks for actual code and this is causing actual 
slow-downs of around 20% in actual applications. That is the main reason 
why I am trying to push this PEP (or PEP 575 which solves the same 
problem in a different way).


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