How to to read a matrix from a given file?

Question

I have a text file which contains matrix of N * M dimensions.

For example the input.txt file contains the following:

Answer 1

import numpy as np
f = open ( 'input.txt' , 'r')
l = []
l = np.array([ line.split() for line in f])
print (l)
type(l)

output:

[['0']  ['0']  ['0']  ['0,0,0,0,0,0,0,0,0,0,0'] 
    ['0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0'] 
['0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0']] 

numpy.ndarray