Oops, meant for the list:

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Chris seems to accept that sometimes you can use a dict subclass, and that my proposal will give some representation of "practical experience".

I said "definitely won't", not "will give some". So, no.

Jonathan: Chris A. is right. But if you think an example implementation is useful, go ahead and make one — it’s actually quite easy, and I’m pretty sure code has already been posted here as well.

-- Christopher Barker, PhD

Python Language Consulting - Teaching - Scientific Software Development - Desktop GUI and Web Development - wxPython, numpy, scipy, Cython