STINNER Victor added the comment: "I think the argument against using PyObject_LengthHint for the general iterable case is that for inputs other than sets or dicts, the assumption is that significant deduplication will occur."
Oh... I'm dumb :) Sorry. Another option for frozenset only: we may adjust the internal size when the frozenset is created from an iterator. ---------- _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue21507> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com