Re: [Python-ideas] OrderedDict for kwargs and class statement namespace

Am 28.02.2013 11:15, schrieb Eric Snow:

Just wanted to put out some feelers for the feasibility of these two features:

* have the **kwargs param be an OrderedDict rather than a dict * have class definitions happen relative to an OrderedDict by default rather than a dict, and still overridable by a metaclass's __prepare__().

Both of these will need OrderedDict in C, which is getting close (issue #16991).

Raymond was/is working on a modification of the dict's internal data structure that reduces its memory consumption. IIRC the modification adds partial ordered as a side effect. The keys are ordered in insertion order until keys are removed. http://mail.python.org/pipermail/python-dev/2012-December/123028.html Christian