text: def quick_sort(arr):
      if arr:
          pivot = arr[0]
          below = [i for i in arr[1:] if i < pivot]
          above = [i for i in arr[1:] if i >= pivot]
          return quick_sort(below) + [pivot] + quick_sort(above)
      else:
          return arr
  
  
  if __name__ == "__main__":
      my_list = [1, 4, 2, 6, 134, 2, 64, 12, 634]
      print(quick_sort(my_list))
  