numpy.broadcast_to(array, shape, subok)

import numpy as np 
a = np.arange(4).reshape(1,4) 

print 'The original array:' 
print a 
print '\n'  

print 'After applying the broadcast_to function:' 
print np.broadcast_to(a,(4,4))

[[0  1  2  3] 
 [0  1  2  3] 
 [0  1  2  3] 
 [0  1  2  3]]