I've thought about this more, and I think I don't want to make the requested change (accept objects which implement __int__ as valid sequence indices). I also don't want to add a new protocol (the proposed __index__). I suggest that you try to find a solution that works without requiring changes to Python -- that way you have a much better chance that your code will work with Python 2.2, which will very likely have a lifetime comparable to that of Python 1.5.2 (in parallel with 2.3, for sure). I understand your desire to equate 0-D arrays and scalars, but I'm afraid that's not how the rest of Python works. I don't think we should change Python's semantic framework with APL's. I'm neutral on what you should do instead; personally, I'd continue to return Python scalars for 0-D arrays, but you could switch to 0-D arrays if you think the advantages outweigh the disadvantages. --Guido van Rossum (home page: http://www.python.org/~guido/)
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