On Mon, 03 Sep 2012 22:37:31 +0200 "Martin v. Löwis" <mar...@v.loewis.de> wrote: > Am 03.09.2012 12:11, schrieb Antoine Pitrou: > > Despite being undocumented, these two macros are used in a couple of > > third-party extension modules (*) such as greenlet and py-judy. This > > means that such an extension compiled for 2.7.3 wouldn't work with > > 2.7.4, and vice-versa. Is there something we can do to alleviate the > > issue? Add a note in the release notes? > > I think breaking existing extension modules in a bugfix release is > really not acceptable. > > I also think that the breakage can be reduced by keeping the global > variable. There would then be two counters: the global used by > old modules, the per-thread counter used by recompiled modules. > I believe this would require separate versions of the helper functions > also.
Indeed. That sounds workable, despite the added complexity. > The question also is about the other direction: modules compiled > for 2.7.4 that are run on 2.7.3. I think this would be more problematic > in your patch, since the code would just access fields in the thread > state which aren't there. If the helper functions are called > differently, the extension would fail to load, which IMO is the better > reaction. Right, that's a better behaviour than crashing. Thank you, Antoine. _______________________________________________ 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
