def calculate_center(shape: tuple):
    """
    Calculate and return the center point of ``shape``.

    :param shape: A tuple (width, height) of odd numbers

    :return: A ``tuple`` (x, y) containing the center points coordinates
    """
    if any(d%2 == 0 for d in shape):
        raise ValueError("width and height of shape must be odd numbers")

    x, y = [int((d-1)/2) for d in shape[-2:]]
    return (x, y)