On Sat, Aug 20, 2011 at 7:20 PM, Max Moroz <maxmo...@gmail.com> wrote: > Would it be a good idea to change Python definition so that a[10, -1, -1] > referred to the elements starting with position 10, going down to the > beginning?
Well, first off I think it's a dangerous idea to change semantics of something like that. I can see your use case, but I think that what you want is covered by simply omitting the stop marker: >>> a="qwertyuiopasdfghjklzxcvbnm" >>> a[10:1:-1] 'apoiuytre' >>> a[10:0:-1] 'apoiuytrew' >>> a[10::-1] 'apoiuytrewq' If you're using a variable for the stop value, you just need to set it to an explicit None if it would fall negative: >>> a[10:None:-1] 'apoiuytrewq' Hope that helps! ChrisA -- http://mail.python.org/mailman/listinfo/python-list
