2009/6/16 Abhishek Tiwari <tiwariabhishe...@gmail.com>: > Question : > The first list contains some items, and the second list contains their value > (higher is better). > > items = [apple, car, town, phone] > values = [5, 2, 7, 1] > > Show how to sort the 'items' list based on the 'values' list so that you end > up with the following two lists: > > items = [town, apple, car, phone] > values = [7, 5, 2, 1] > > Ans. 1 > > values, items = list(zip(*sorted(zip(values,items), reverse=True))) > > Ans. 2 > new_values = sorted(values, reverse=True) > new_items = [items[x] for x in map(values.index,new_values)] > > > I would like to know which method is better and why?
How about this? d = dict(zip(items, values)) new_items = sorted(items, key=d.__getitem__, reverse=True) _______________________________________________ BangPypers mailing list BangPypers@python.org http://mail.python.org/mailman/listinfo/bangpypers
