From: Andrew Barnert via Python-ideas <python-ideas@python.org> >So yes, Christopher is wrong to suggest that the new operators should be part of Mapping, but only because he should have said (and presumably meant) MutableMapping.
Indeed I did, thanks. I wasn't really thinking about it, because there isn't a immutable Mapping type builtin at all. -CHB -- Christopher Barker, PhD Python Language Consulting - Teaching - Scientific Software Development - Desktop GUI and Web Development - wxPython, numpy, scipy, Cython
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