[Python-Dev] PEP 0424: A method for exposing a length hint
Antoine Pitrou
solipsis at pitrou.net
Tue Jul 17 10:30:41 CEST 2012
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Tue Jul 17 10:30:41 CEST 2012
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On Tue, 17 Jul 2012 13:19:55 +1000 Nick Coghlan <ncoghlan at gmail.com> wrote: > > > There are no provisions for infinite iterators, that is not within the scope of > > this proposal. > > I'll repeat my observation that remaining silent on this point is > effectively identical to blessing the practice of raising an exception > in __length_hint__ to force fast failure of attempts to convert an > infinite iterator to a concrete container. And I'll repeat that it is false ;) Being silent is certainly not the same thing as blessing a non-existent practice. Regards Antoine. -- Software development and contracting: http://pro.pitrou.net
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