def heapsort(data,comp=lambda a,b:a>b):
for i in reversed(range(len(data)//2)):
heap.pushdown(data,i)
last = len(data)-1
for i in range(len(data)):
data.enqueue(heap.pop(data,last))
last-=1
def _make_heap(self):
for i in reversed(range(len(self.data)//2)):
heap.pushdown(self.data,i, comp=self.comp)