"Steven Bethard" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > What is the getnext protocol? Is that the same thing that the iter() > docs call the sequence protocol?
Yes. (I meant to write getitem rather than getnext.) > Because this definitely still works with itertools: Yes, not because itertools are cognizant of sequence objects but because itertools apply iter() to inputs and because iter() currently accomodates sequence-protocol objects as well as iterable-protocol objects by wrapping the former with builtin <iterator> objects. I expect that may change if and when the builtin C-coded types are updated to have __init__ methods. This is a ways off, if ever, but I think the general advice for user code is to use the newer protocol. So, for the purpose of writing new code, I think it justified to forget about or at least ignore the older iteration protocol. Terry J. Reedy -- http://mail.python.org/mailman/listinfo/python-list
