On 9 April 2018 at 14:38, Raymond Hettinger <raymond.hettin...@gmail.com> wrote: >> On Apr 8, 2018, at 6:43 PM, Tim Peters <tim.pet...@gmail.com> wrote: >> In short, for _general_ use `accumulate()` needs `initial` for exactly >> the same reasons `reduce()` needed it. > > The reduce() function had been much derided, so I've had it mentally filed in > the anti-pattern category. But yes, there may be wisdom there.
Weirdly (or perhaps not so weirdly, given my tendency to model computational concepts procedurally), I find the operation of reduce() easier to understand when it's framed as "last(accumulate(iterable, binop, initial=value)))". Cheers, Nick. -- Nick Coghlan | ncogh...@gmail.com | Brisbane, Australia _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
