How to make a checkerboard in numpy?

Question

I\'m using numpy to initialize a pixel array to a gray checkerboard (the classic representation for \"no pixels\", or transparent). It seems like there ought to be a whizzy

Answer 1

import numpy as np
b = np.array([[0,1],[1,0]])

Replace n with a even numberand you will get the answer. Easy right?

np.tile(b,(n, n))