On Mon, Oct 24, 2016 at 10:22 AM, Steven D'Aprano <st...@pearwood.info> wrote: > Right. But you're missing the point of Danilo's proposal. He isn't > asking for a function to "jump to the end" of an iterator. Look at his > example. The word "last" is a misnomer: he seems to me talking > about having a special variable in comprehensions that holds the > *previous* value of the loop variable, with special syntax to set its > FIRST value, before the loop is entered. So "last" is a misleading name, > unless you understand it as "last seen" rather than "very last, at the > end". >
Sounds like the PostgreSQL "lag" function [1]. Perhaps that's a better name? Conceptually, what you have is another iteration point that lags behind where you currently are. ChrisA [1] https://www.postgresql.org/docs/current/static/functions-window.html _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
