[issue1762] Inheriting from ABCs makes classes slower.

Jeffrey Yasskin added the comment: Since there were no comments, I submitted the patch as r61098. I think we're done here. :) -- resolution: -> fixed status: open -> closed type: -> behavior versions: +Python 2.6 __ Tracker <[EMAIL PROTECTED]>

[issue1762] Inheriting from ABCs makes classes slower.

Jeffrey Yasskin added the comment: I'd like a second opinion about whether it's a good idea to commit the attached patch, which moves abc._Abstract into object. Its effect is to speed ./python.exe -m timeit -s 'import abc' -s 'class Foo(object): __metaclass__=abc.ABCMeta' 'Foo()' up from 2.5u

[issue1762] Inheriting from ABCs makes classes slower.

Jeffrey Yasskin added the comment: Guido and I discussed this, and the next step seems to be to rewrite _Abstract in C and push it into object. For an idea of how much that'll help, just commenting out _Abstract.__new__ takes the Fraction() constructor from 9.35us to 6.7us on my box, and the C we

[issue1762] Inheriting from ABCs makes classes slower.

Jeffrey Yasskin added the comment: I've committed the inlined option as r60762. __ Tracker <[EMAIL PROTECTED]> __ ___ Python-bugs-list mailing list Unsu

[issue1762] Inheriting from ABCs makes classes slower.

Jeffrey Yasskin added the comment: Right. Decimal was just the place I noticed the problem first. Now it affects Rational more, but it's really a problem with ABCs in general, not specific concrete classes. -- title: Inheriting from ABC slows Decimal down. -> Inheriting from ABCs makes