def distance_point(p1, p2):
    """
    Returns the Euclidian distance between two points.
    Retourne la distance euclidienne entre deux points.

    @param      p1      point 1
    @param      p2      point 2
    @return             distance
    """
    d = 0
    for a, b in zip(p1, p2):
        d += (a - b) ** 2
    return d ** 0.5