Ronald Oussoren added the comment: pep447-2015-07-25-v2.txt changes two things w.r.t. the patch earlier today:
1) The performance problems w.r.t. the method_cache are gone 2) Added code for handling python exceptions other than AttributeError in calls to __getdescriptor__. This code requires some tests to make sure the error handling code is correct. The new patch also adds some more tests, and adds extra MCACHE_STATS counters. Those aren't part of the proposal but were helpful to find the problem w.r.t. 1). As I mentioned before implementing __getdescriptor__ in Python is bad for performance of instances of that metaclass. AFAIK that cannot be helped, doing that will just execute a lot more Python code. ---------- Added file: http://bugs.python.org/file40017/pep447-2015-07-25-v2.txt _______________________________________ Python tracker <rep...@bugs.python.org> <http://bugs.python.org/issue18181> _______________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: https://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
