Raymond Hettinger added the comment: Py3.0 updte: UserDict is going to survive into Py3.0 and will be moved into the collections module. DictMixin is replaced by the abstract base classes for mappings.
I think the discussion here has grown far beyond the original bug report. I recommend this one be closed and that you start a thread on python-3000 or python-dev if you want to propose altering basic APIs or moving the ABC code into C. I can't say that I support your "UserDict is a kludge ..." comment. The class has its uses and the standard library will continue to use it where appropriate. FWIW, at one time I also thought all uses of UserDict would ultimately be supplanted by dict subclassing, but I found that it was somewhat difficult to remove in some circumstances and that its API had some advantages (i.e. it's easier to write subclass code like self.data [computedkey]=computedvalue than to dispatch to dict.__setitem__(self, computedkey, computedvalue) -- the latter form is somewhat errorprone when the subclass methods become more complex). Will look at 1367711 as you suggest. __________________________________ Tracker <[EMAIL PROTECTED]> <http://bugs.python.org/issue2144> __________________________________ _______________________________________________ Python-bugs-list mailing list Unsubscribe: http://mail.python.org/mailman/options/python-bugs-list/archive%40mail-archive.com
