On 19 May 2013 11:57, Guido van Rossum <gvanros...@gmail.com> wrote: > Hm. Wouldn'tvevery call site be slowed down by checking for that flag?
Actually, when I was thinking on the subject I came to the same idea, of having some functions marked differently so they would use a different call mechanism - but them I wondered around having a different opcode for the ordered-dict calls. Would that be feasible? js -><- > — > Sent from Mailbox > > > On Sun, May 19, 2013 at 7:42 AM, Nick Coghlan <ncogh...@gmail.com> wrote: >> >> On Sun, May 19, 2013 at 11:01 PM, Antoine Pitrou <solip...@pitrou.net> >> wrote: >> > The main use case seems to be the OrderedDict constructor itself. >> > Otherwise, I can't think of any situation where I would've wanted it. >> >> I've had a couple related to populating other mappings where order >> matters, at least from a predictability and readability perspective, >> even if it's not strictly required from a standards compliance point >> of view (think writing XML attributes, etc). >> >> I quite liked the idea of a simple flag attribute on function objects >> that the interpreter checked, with a decorator in functools (or even >> the builtins) to set it. It's not a particularly elegant solution, but >> it would get the job done with minimal performance impact on existing >> functions. >> >> Cheers, >> Nick. >> >> -- >> Nick Coghlan | ncogh...@gmail.com | Brisbane, Australia >> _______________________________________________ >> Python-Dev mailing list >> Python-Dev@python.org >> http://mail.python.org/mailman/listinfo/python-dev >> Unsubscribe: >> http://mail.python.org/mailman/options/python-dev/guido%40python.org > > > > _______________________________________________ > Python-Dev mailing list > Python-Dev@python.org > http://mail.python.org/mailman/listinfo/python-dev > Unsubscribe: > http://mail.python.org/mailman/options/python-dev/jsbueno%40python.org.br > _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
