On 7/21/2011 2:15 PM, Brett Cannon wrote:
It won't break any _existing_ code, but it could cause compatibility for _future_ code. Imagine I wrote some code for 3.2.2 where this change was backported and worked *only* with this fix. That would mean my code would fail in any Python 3.2.1 or older interpreter. That's simply not acceptable as that means that code would be magically busted for some versions of Python 3.2 but not all of them.
In other words, Python 3.2 is a fixed language, cpython3.2.z's are intended to be increasingly better implementations of that language, although regressions can and do happen (as with issue 12540).
-- Terry Jan Reedy _______________________________________________ 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
