Formatting arrays using myarrayy.tolist()

[Max Abrahams]

I've got an array that looks like this:


 >>> p.xv[20:25]

array([[  1.60783821e-01,   1.04174046e+01,  -1.74045566e-03,
           6.02421398e-01,   2.16078382e+00,  -1.60783821e-02],
        [  1.66704816e-01,   1.04390422e+01,  -1.90421758e-03,
           5.81767402e-01,   2.16670482e+00,  -1.66704816e-02],
        [  1.72418976e-01,   1.04607380e+01,  -2.07379715e-03,
           5.61054649e-01,   2.17241898e+00,  -1.72418976e-02],
        [  1.77925722e-01,   1.04824899e+01,  -2.24898715e-03,
           5.40285230e-01,   2.17792572e+00,  -1.77925722e-02],
        [  1.83224500e-01,   1.05042958e+01,  -2.42957975e-03,
           5.19461244e-01,   2.18322450e+00,  -1.83224500e-02]])

I want to dump it to  a plain text file. The problem is, it unravels  
the array. The text file will look like this

p.xv.tofile('file','\n')


10.3528613872
-0.00128613872188
0.664009998909
2.14178590964
-0.0141785909637
0.148323738585
10.3743121062
-0.0014312106189

and so on.
i want it to look like this:

1 2 3 4 5 6
7 8 9 10 11 12
13 14 15 16 17 18
19 20 21 22 23 24


any help would be appreciated.
thanks.