tiissa wrote: > Peter Otten wrote: >> [EMAIL PROTECTED] wrote: >> >> >>>so if I want to reverse it fully using s[len(s)-1:x:-1] what would x be >>>or is it impossible to express it in this way ? >> >> >> This does not work for integers, because the theoretically correct value >> x = -1 already has another interpretation as the gap between the last and >> the last but one character. > AFAIK, it is not an issue of integer (what else can an slice index be in > python?) but simply of index aliasing. > > For x=-len(s)-1, you get the whole reversed list: > > In [5]: s[len(s)-1:-len(s)-1:-1] > Out[5]: '54321'
Clever. I didn't think of that. Still, for practical purposes you have to test for slicelen >= stringlen, so whether you choose None, -len(s)-1, or -sys.maxint as the second slice parameter doesn't matter much. Peter -- http://mail.python.org/mailman/listinfo/python-list
