Determines the height and width of the console window

        Returns:
            tuple of int: The height in lines, then width in characters

def size():
    """Determines the height and width of the console window

        Returns:
            tuple of int: The height in lines, then width in characters
    """
    try:
        assert os != 'nt' and sys.stdout.isatty()
        rows, columns = os.popen('stty size', 'r').read().split()
    except (AssertionError, AttributeError, ValueError):
        # in case of failure, use dimensions of a full screen 13" laptop
        rows, columns = DEFAULT_HEIGHT, DEFAULT_WIDTH

    return int(rows), int(columns)