I am also not here to criticize style here, but I want to point something out.
Something like a[1,2] might look wrong, but it's actually parsed specially by Python to accommodate slicing of multidimensional arrays. The difference is that, inside [], you can use slicing syntax, as in a[1:2,3:4]. But using parentheses forces it to be parsed as an ordinary tuple, where you can't use slicing syntax. Thus, a[(1:2,3:4)] is a syntax error. Obviously this is irrelevant for dicts. But if you're using some sort of custom array object, that supports slicing in multiple dimensions, you can't slice with the parentheses. Because of this, I don't use the parentheses for things like multidimensional arrays. I tend to use the parentheses whenever the index is some sort of atomic value, however. -- CARL BANKS -- http://mail.python.org/mailman/listinfo/python-list
