Terry Reedy wrote: > On 7/22/2015 3:25 AM, Ronald Oussoren wrote: >> Hi, >> >> Another summer with another EuroPython, which means its time again to >> try to revive PEP 447… >> >> I’ve just pushes a minor update to the PEP and would like to get some >> feedback on this, arguably fairly esoteric, PEP. > > Yeh, a bit too esoteric for most of us to review. For instance, it is not > obvious to me, not familiar with internal details, after reading the intro, > why > a custom __getattribute__ is not enough and why __getdescriptor__ would be > needed. If Guido does not want to review this, you need to find a PEP BDFL for > this. > > There are two fairly obvious non-esoteric questions: > > 1. How does this impact speed (updated section needed)?
Agreed, this is important. But hopefully it's just a C indirection (or better yet, a null check) for objects that don't override __getdescriptor__. > 2. Is this useful, that you can think of, for anything other than connecting > to > Objective C? There are other object models that would benefit from this, but I don't recall that we came up with uses other than "helps proxy to objects where listing all members eagerly is expensive and/or potentially incorrect". Maybe once you list all the operating systems that are now using dynamic object-oriented APIs rather than flat APIs (Windows, iOS, Android, ... others?) this is good enough? FWIW, I'm still +1 on this, pending performance testing. Cheers, Steve > -- > Terry Jan Reedy _______________________________________________ Python-Dev mailing list Python-Dev@python.org https://mail.python.org/mailman/listinfo/python-dev Unsubscribe: https://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
