Neal Becker 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.
-1. Regardless of the merits if we had a blank slate, there is code that depends on this, specifically my code. It simplifies certain operations that would otherwise need tedious special case-handling. -- Robert Kern "I have come to believe that the whole world is an enigma, a harmless enigma that is made terrible by our own mad attempt to interpret it as though it had an underlying truth." -- Umberto Eco _______________________________________________ Numpy-discussion mailing list Numpy-discussion@scipy.org http://projects.scipy.org/mailman/listinfo/numpy-discussion