Patches item #1438113, was opened at 2006-02-24 09:20 Message generated for change (Comment added) made by rhettinger You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=305470&aid=1438113&group_id=5470
Please note that this message will contain a full copy of the comment thread, including the initial issue submission, for this request, not just the latest update. Category: Core (C code) Group: Python 2.5 Status: Open >Resolution: None Priority: 5 Submitted By: Barry A. Warsaw (bwarsaw) >Assigned to: Guido van Rossum (gvanrossum) Summary: dict.getdefault() implementation Initial Comment: This article: http://mail.python.org/pipermail/python-dev/2006-February/061748.html describes dict.getdefault() as a replacement for dict.setdefault(). Here is a candidate implementation. ---------------------------------------------------------------------- >Comment By: Raymond Hettinger (rhettinger) Date: 2006-02-25 13:27 Message: Logged In: YES user_id=80475 -1 on adding this method. The new defaultdict goes a long way toward meeting many needs. IMO, the granular case is better met with a simple try/except. Please, let's not bloat the dict API just because we can. The original setdefault was problematic not just because of its name and unnecessary instantiations. There were also readability issues from jamming too much on one line. Also, one we've added __missing__ support and defaultdict, the environment has become more crowded with variations on solutions to a similar problems. Adding too many solutions makes all of them harder to choose from. The mapping API is too important to bloat with this method -- we need to be going the other direction (removing has_key and setdefault). Assigning to Guido for pronouncement. ---------------------------------------------------------------------- Comment By: Georg Brandl (gbrandl) Date: 2006-02-24 16:01 Message: Logged In: YES user_id=849994 I'm not entirely sure how to explain to newcomers what the hell the difference between getdefault and setdefault is, and what their names have to do with it. ---------------------------------------------------------------------- Comment By: Thomas Wouters (twouters) Date: 2006-02-24 11:52 Message: Logged In: YES user_id=34209 Super, looks great, excellent cut-and-paste work there, Barry. Let's check this in while Guido is too busy talking to people at Pycon to notice. ;-) ---------------------------------------------------------------------- You can respond by visiting: https://sourceforge.net/tracker/?func=detail&atid=305470&aid=1438113&group_id=5470 _______________________________________________ Patches mailing list [email protected] http://mail.python.org/mailman/listinfo/patches
