On Sun, Feb 1, 2015 at 9:55 AM, Steven D'Aprano <steve+comp.lang.pyt...@pearwood.info> wrote: > Steven D'Aprano wrote: > >> len tries to call __len__ if it exists, and if not, it tries walking the >> iterable counting items. > > Hmmm, I may have mis-remembered that. Perhaps I'm thinking of Ruby.
I think you just got it backward. iter will call __iter__ if it exists, and will try to fall back on __len__ and __getitem__ to iterate otherwise. -- https://mail.python.org/mailman/listinfo/python-list
