import random


def change_coords_a_bit(coords, max_delta=0.05):
    """
    Used for fluctuating the given coordinates by max_delta.
    The goal is to avoid overlapping pins on the map. 
    """
    new_x = coords[0] + random.random()*max_delta*random.choice([-1, 1])
    new_y = coords[1] + random.random() * max_delta * random.choice([-1, 1])
    return new_x, new_y