On Jan 14, 2008 12:37 PM, Neal Becker <[EMAIL PROTECTED]> wrote: > I've never liked that python silently ignores slices with out of range > indexes. I believe this is a source of bugs (it has been for me). It > goes > completely counter to the python philosophy. > > I vote to ban them from numpy. > >>> from numpy import array > >>> x = array (xrange (10)) > >>> x[11] > Traceback (most recent call last): > File "<stdin>", line 1, in <module> > IndexError: index out of bounds > >>> x[:12] = 2 > >>> x > array([2, 2, 2, 2, 2, 2, 2, 2, 2, 2]) > >>> len (x) > 10 > > Silently ignoring the error x[:12] is a bad idea, IMO. If it meant to > _extend_ x to have lenght 12, at least _that_ would be reasonable (but I'm > not advocating that position). > > I believe that out of bounds indexes should always throw IndexError. We > can't change that in Python now, but maybe we can in numpy. > <http://projects.scipy.org/mailman/listinfo/numpy-discussion>
-1. Regardless of the possible merit of this on it's face, I think this is an area we should maintain compatibility with Python sequences. Not to mention that it would likely break a bunch of code, including my own. -- . __ . |-\ . . [EMAIL PROTECTED]
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