def sub_sort(array,low,high):
  pivotkey=array[low]
  while low<high :
    while low<high and array[high]>=pivotkey:
      high -= 1
    array[low]=array[high]
    while low<high and array[low]<=pivotkey:
      low += 1
    array[high]=array[low]
  array[low]=pivotkey
  return low
 
def quick_sort(array,low,high):
  if low < high :
    pivoloc=sub_sort(array,low,high)
    quick_sort(array,low,pivoloc-1)
    quick_sort(array,pivoloc+1,high)
 
if __name__=="__main__": 
  array=[49,38,65,97,76,13,27]
  print array
  quick_sort(array,0,len(array)-1)
  print array

=============== RESTART: I:\python_DataStructure\quick_sort.py ===============
[49, 38, 65, 97, 76, 13, 27]
[13, 27, 38, 49, 65, 76, 97]
>