Arrange output.txt using python?

Question

I need the output in a text file with specific arrangements.eg,

  0.2500000   0.2500000   0.0000000   1.0000000
  0.2400000   0.2400000   0.0000000.  1.0000000

so I use a code as

#!/usr/bin/env python2
import numpy as np
import numpy as np
import math
kz=0.0000000
kx = 0.0000000
ky = 0.0000000
theta=0.01000
K =[kx, ky, kz, 1.00000000]
for i in np.arange (-0.2500000,0.2500000,theta):
         print kx+i,ky+i, kz,1000000

how can I add spaces and can get desired digits in output values?

Answer 1

To print to a file you could do:

f = open("demofile2.txt", "a")

for i in np.arange (-0.2500000,0.2500000,theta):
         f.write((kx + i) + " " + (ky+ i) + " " + kz + " " + 1000000 + " \n")

f.close()