New submission from Barry A. Warsaw <ba...@python.org>: I'm making this a release blocker for 2.7.2 because I want to ensure that the change is deliberate and appropriate. This is triggered by a bug report in Ubuntu where the change in behavior was noticed:
https://bugs.launchpad.net/nova/+bug/791221/+index I have two problems with the change that I'd like to describe. First is the NEWS file entry: - Correct lookup of __dir__ on objects. Among other things, this causes errors besides AttributeError found on lookup to be propagated. This isn't associated with a tracker issue, so it's hard to know why this change was made, or whether there was any discussion of its impact. Second, is this change appropriate for a maintenance release? What problem does it fix and is that worth breaking existing packages for it? I'll attach a simple test program. Run this under 2.7.1 and it works, run it under 2.7.2rc1 and you get a TypeError. ---------- assignee: benjamin.peterson components: Interpreter Core files: foo.py messages: 137500 nosy: barry, benjamin.peterson priority: release blocker severity: normal status: open title: __dir__ semantics changed in Python 2.7.2 type: behavior versions: Python 2.7 Added file: http://bugs.python.org/file22225/foo.py _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue12248> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
