Christopher Spears wrote: > Here is a class called PriorityQueue: > > class PriorityQueue: > def __init__(self): > self.items = [] > > def isEmpty(self): > return self.items == [] > > def insert(self, item): > self.items.append(item) > > def remove(self): > maxi = 0 > for i in range(1, len(self.items)): > if self.items[i] > self.items[maxi]: > maxi = i > item = self.items[maxi] > > return item > > My question concerns the remove function. The > function returns the maximum value. However, I'm > curious about > self.items[maxi:maxi+1] = []. I understand that the > programmer wants to remove self.items[maxi]. Why > would he or she want to remove that value and the one > next to it (maxi+1)? Or am I misunderstanding > self.items[maxi:maxi+1] = [] ? > I don't see the line 'self.items[maxi:maxi+1] = []' anywhere in the above code. In fact, I don't see any list slicing taking place at all.
> As an aside, I can't figure out how to respond to > topics on this list. > > either hit 'reply-all' in your message or change the 'to:' line from whatever the recipient's address is to 'tutor@python.org' (you can also cc. to 'tutor@python.org' but this is what will happen when you 'reply-all' anyway.) > _______________________________________________ > Tutor maillist - Tutor@python.org > http://mail.python.org/mailman/listinfo/tutor > > _______________________________________________ Tutor maillist - Tutor@python.org http://mail.python.org/mailman/listinfo/tutor
