ret

first

import numpy as np
import pylab as plt
import time


living_cells = set([(1, 0), (1, 1), (1, 2)])

counting = {}

neighbors = [(-1, -1), (0, -1), (1, -1),
             (-1, 0), (1, 0),
             (-1, 1), (0, 1), (1, 1)]

for x, y in living_cells:
    for m, n in neighbors:
        tmp = (x+m, y+n)
        if not tmp in counting:
            counting[tmp] = 0
        print tmp
        if tmp in living_cells:
            counting[tmp] += 1
            print 'added'

print counting