how to define array in python : I have written a program in python and when I debug my code I have some output like:

    A = [[ 0.49184191  0.49216545  0.49045572  0.49120336  0.49162126  0.49127175
       0.4918312   0.49146007  0.49217111  0.49105725  0.49188209  0.49131341
       0.4915551   0.4916877   0.49176704  0.49107439  0.49179349  0.49113405
       0.49181949  0.49114229  0.49080868  0.49212299  0.49132733  0.49130678
       0.49243294  0.49138045  0.49142812  0.49110904  0.49057333  0.49152252
       0.49156431  0.49158843  0.49213234  0.49119104  0.49058275  0.49160299
       0.49096081  0.49144198  0.4920761   0.49149983  0.49164554  0.49108083
       0.49207692  0.49160705  0.49198164  0.49135187  0.49185721  0.49189228
       0.49173232  0.49141264  0.49135901  0.49203396  0.49211383  0.49157355
       0.49164756  0.4910949   0.49197874  0.49131     0.4915147   0.4912441
       0.49158387  0.49133532  0.49115916  0.49170297  0.49213771  0.49130702
       0.49181432  0.4913136   0.49129868  0.49137166  0.49195617  0.4911638
       0.4919901   0.49131729  0.49183565  0.49135328  0.49133418  0.49114096
       0.49153416  0.49129274  0.4915175   0.49140146  0.49147821  0.4923465
       0.49138114  0.49110974  0.49204106  0.49100999  0.49227227  0.49124463
       0.49178075  0.49126929  0.49129691  0.4916742   0.49099519  0.491607
       0.49153693  0.49128967  0.49183968  0.49183926  0.49191762  0.49191687
       0.49191334]]

and 

    Y = [[0 1 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 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 0 0 0 0 0]]

And it seems no problem to execute some actions with those variables like eg: 

    dA = - (np.divide(Y, A) - np.divide(1 - Y, 1 - A))

But when I define in a ceparated cel some arrays for my own use:

    import numpy as np
    
    m = [[4 5 6]]
    n = [[1 2 3]]

Then as output I have: 

    File "<ipython-input-61-52c19e46fafb>", line 3
        m = [[4 5 6]]
                ^
    SyntaxError: invalid syntax

So why is it not possible to define m and n as I have some output like that in my other Code?