selection sort implementation

selection_sort.py

def selection_sort(elements):
    size = len(elements)
    # loop over all elements excluding last one
    for i in range(size - 1):
        # find the smallest value in current range
        min_index, min_value = i, elements[i]
        for j in range(i + 1, size):
            if elements[j] < min_value:
                min_index, min_value = j, elements[j]
        # swap i-th element with the smallest one
        tmp = elements[i]
        elements[i] = elements[min_index]
        elements[min_index] = tmp