New submission from Nick Coghlan <ncogh...@gmail.com>:
While reviewing ISO-IECJTC1-SC22-WG23's latest draft of their Python security annex, I noticed that https://docs.python.org/3.7/library/stdtypes.html#bitwise-operations-on-integer-types doesn't explicitly state that *floor* division is used for right shift operations, so right-shifting a negative number by more bits than it contains gives -1 rather than 0. This is consistent with the way the language spec defines both binary right-shifts (as division by "pow(2, n)" and floor division (as rounding towards negative infinity), so this is just a documentation issue to note that we should make it clearer that this behaviour is intentional. ---------- assignee: docs@python components: Documentation messages: 359786 nosy: docs@python, ncoghlan priority: normal severity: normal stage: needs patch status: open title: Specification of bitshift on integers should clearly state floor division used type: enhancement versions: Python 3.7, Python 3.8, Python 3.9 _______________________________________ Python tracker <rep...@bugs.python.org> <https://bugs.python.org/issue39301> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
