import random

M,N=10,10

matrix=[[random.randrange(2) for y in range(M)] for x in range(N)]

In [35]: matrix
Out[35]: [[0, 0, 1, 0], [0, 0, 1, 0], [1, 1, 0, 1], [0, 1, 0, 0]]

In [36]: from itertools import combinations

In [37]: [(i,j) for i,j in combinations(range(len(matrix)), 2) if matrix[i] == matrix[j]]
Out[37]: [(0, 1)]