input: Write a function to implement a selection sort algorithm on a given list. The function should return the sorted list. If the input list is empty, the function should return an empty list.
  def sort_list(mylist):
   for i in range(len(mylist)):
    min_index = i
    temp = mylist[i]
    for j in range(i + 1, len(mylist)):
     if mylist[min_index] > mylist[j]:
      min_index = j
    mylist[i] = mylist[min_index]
    mylist[min_index] = temp
   return mylist
  assert sort_list([3, 1, 4, 1, 5, 9, 2, 6, 5]) == [1, 1, 2, 3, 4, 5, 5, 6, 9]
  assert sort_list([10, 7, 8, 9, 1, 5]) == [1, 5, 7, 8, 9, 10]
  assert sort_list([]) == []
  assert sort_list([5]) == [5]
output: def sort_list(mylist):
   for i in range(len(mylist)):
    min_index = i
    temp = mylist[i]
    for j in range(i + 1, len(mylist)):
     if mylist[min_index] > mylist[j]:
      min_index = j
    mylist[i] = mylist[min_index]
    mylist[min_index] = temp
   return mylist