> I just went and read the entry that had the bogus claim -- personally, I > didn't see any confusion. I would like to point out the __missing__ is > *not* part of dicts (tested on 2.5 and 2.6 -- don't have 2.7 installed yet).
I beg your pardon but you are wrong. __missing__ is available for all *subclasses* of dict since Python 2.5. See http://svn.python.org/view/python/branches/release25-maint/Objects/dictobject.c?revision=81031&view=markup >>> class mydict(dict): ... def __missing__(self, key): ... print "__missing__", key ... raise KeyError(key) ... >>> m = mydict() >>> m[1] __missing__ 1 Traceback (most recent call last): File "<stdin>", line 1, in <module> File "<stdin>", line 4, in __missing__ KeyError: 1 Christian -- http://mail.python.org/mailman/listinfo/python-list