[Python] Binary search

[Python] Binary search

def binary_search_iterative(array, element):
    mid = 0
    start = 0
    end = len(array)
    step = 0

    while (start <= end):
        # print('Subarray in step {}: {}'.format(step, str(array[start:end+1])))
        step = step + 1
        mid = (start + end) // 2

        if element == array[mid]:
            return mid

        if element < array[mid]:
            end = mid - 1
        else:
            start = mid + 1
    return -1