Selection Sort

def selection_sort(items):
    """Sorts a list of items into ascending order using the
       selection sort algoright.
       """
    for step in range(len(items)):
        # Find the location of the smallest element in
        # items[step:].
        location_of_smallest = step
        for location in range(step, len(items)):
            # determine location of smallest
            if items[location] < items[location_of_smallest]:
                location_of_smallest = location
        # Exchange items[step] with items[location_of_smallest]
        temporary_item = items[step]
        items[step] = items[location_of_smallest]
        items[location_of_smallest] = temporary_item