玩矩阵

Question

我试图编写一个Python类，创建一个由零组成的矩阵，然后使用随机数生成器在矩阵上选取点。它把那个点上的0变成1，直到矩阵都是1。有人能批评/纠正我的代码吗？（我还希望生成器检查其在矩阵上的接近度，并尝试3次以找到一个与任何一个点相距2点的点。）

import random
import numpy as np
#agents is amount of agents available to fill grid
class Gridmodel():
    def __init__(self, gridsize, agents):
        self.gridsize = gridsize
        self.agents = agents 
        self.gridmodel = np.zeros([self.gridsize, self.gridsize],dtype=int)


    def foundspot(self):
        foundspot = False         
        tries = 0
        while foundspot == False and tries <= 3:
            x = random.randint(0, self.gridsize)
            y = random.randint(0, self.gridsize)
            if self.gridmodel[x][y] < 0:
                foundspot = True
        else: 
            tries += 1

    def goodspot(self, x, y):
        goodspot = self.gridmodel[x][y]
        for i in range(-1,2):
            for j in range(-1,2):

                print i, j, self.gridmodel[i][j]