2009/9/17 Rich Lovely <roadier...@googlemail.com>: > 2009/9/17 george fragos <fragos.geo...@gmail.com>: >> If numbers=[1,2,3,4,5,6,7,8,9,10] and since "...any time the >> leftmost index in a slice comes later in the seqence than the second >> one... the result is always an empty sequence", why the slice >> numbers[10:0:-2] produces the sequence [10,8,6,4,2] but not the >> sequence []? >> _______________________________________________ >> Tutor maillist - tu...@python.org >> To unsubscribe or change subscription options: >> http://mail.python.org/mailman/listinfo/tutor >> > > There should be a caveat to that: Unless the third index (step) is negative. > > The first value is start, the second stop, and the third step. What > you are saying with numbers[10,0,-2], is start at 10 (facing towards > the end of the sequence), keep going until you get to 0, taking two > steps backwards each time. > > I hope that clears things up a little.. > > -- > Rich "Roadie Rich" Lovely > > There are 10 types of people in the world: those who know binary, > those who do not, and those who are off by one. >
Thanx for your reply...! By the way, I'd like to say hallo to the List and state that I'm just starting with Python...! George Fragos _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
