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. _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: http://mail.python.org/mailman/listinfo/tutor
