On Thu, Nov 8, 2012 at 1:54 AM, Guido van Rossum <gu...@python.org> wrote: > On Wed, Nov 7, 2012 at 4:13 AM, Ned Batchelder <n...@nedbatchelder.com> wrote: >> We've gone out of our way to >> maintain backward compatibility with the implemented behavior before >> (ordering of dict keys, for example). > > Not sure what you're referencing here -- didn't we just start > randomizing hashing?
Hash randomization could have been quietly introduced as a security fix and backported to old versions. But since applications might have depended on dict iteration order, it wasn't - old versions of Python won't randomize hashes unless you set an environment variable. That's taking care of old code, even when that old code is depending on non-spec behaviour. ChrisA _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
