akira added the comment: >From https://docs.python.org/3/glossary.html#term-sequence
> An iterable which supports efficient element access using integer indices via > the __getitem__() special method and defines a __len__() method that returns > the length of the sequence. .parents *is* a sequence. And it *is* confusing that it doesn't accept negative indexes -- that is how I've encountered the bug. Antoine, could you elaborate on what are the negative consequences of negative indexes to justify breaking the expectations? ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue21041> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
