I'd say I'm +0. fwiw- I've been using a locally-rolled OrderedDict implementation for the last 5-6 years in which insertion order is the only order respected. I use it all over the place (in a code base of ~60k lines of python code).
so there's another use case for you. bust as you say, easy to do yourself... =?ISO-8859-1?Q?"Martin_v._L=F6wis"?= writes: | Thomas Heller wrote: | > I cannot understand why people are against adding it to stdlib (after | > the name, the implementation, and the exact place have been decided). | > It's certainly a useful data type, isn't it? | | It depends on the precise semantics. You often want a dictionary where | the keys come out in some order - but that is rarely the order in which | they were added to the dictionary. Most frequently, you want the keys | sorted, according to some criteria. If not that, I would assume that you | typically have the order of keys determined before even filling the | dictionary, in which case you can do | | for k in keys_in_preferred_order: | v = hashtable[k] | process(k,v) | | I remember having needed that once in the past 15 years (in Smalltalk | at the time), so I wrote an OrderedDictionary for Smalltalk/V (which | didn't have it). It took me an hour or so. | | I don't recall what precisely it was that I needed it for, and I cannot | think of any use case for the data type right now. | | So I'm -0 on adding the data type: I have a vague feeling it is needed, | but rarely, and I don't know precisely what for. | | Regards, | Martin | _______________________________________________ | 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/tommy%40ilm.com _______________________________________________ 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
