How do I get a text output from a string created from an array to remain unshortened?

Python/Numpy Problem. Final year Physics undergrad... I have a small piece of code that creates an array (essentially an n×n matrix) from a formula. I reshape the array to a single column of values, create a string from that, format it to remove extraneous brackets etc, then output the result to a text file saved in the user's Documents directory, which is then used by another piece of software. The trouble is above a certain value for "n" the output gives me only the first and last three values, with "...," in between. I think that Python is automatically abridging the final result to save time and resources, but I need all those values in the final text file, regardless of how long it takes to process, and I can't for the life of me find how to stop it doing it. Relevant code copied beneath...

import numpy as np; import os.path ; import os

'''
Create a single column matrix in text format from Gaussian Eqn.
'''

save_path = os.path.join(os.path.expandvars("%userprofile%"),"Documents")
name_of_file = 'outputfile' #<---- change this as required.
completeName = os.path.join(save_path, name_of_file+".txt") 

matsize = 32

def gaussf(x,y): #defining gaussian but can be any f(x,y)
pisig = 1/(np.sqrt(2*np.pi) * matsize) #first term
sumxy = (-(x**2 + y**2)) #sum of squares term
expden = (2 * (matsize/1.0)**2) # 2 sigma squared
expn = pisig * np.exp(sumxy/expden) # and put it all together
return expn

matrix = [[ gaussf(x,y) ]\
for x in range(-matsize/2, matsize/2)\
for y in range(-matsize/2, matsize/2)] 

zmatrix = np.reshape(matrix, (matsize*matsize, 1))column

string2 = (str(zmatrix).replace('[','').replace(']','').replace(' ', ''))

zbfile = open(completeName, "w")
zbfile.write(string2)
zbfile.close()

print completeName
num_lines = sum(1 for line in open(completeName)) 
print num_lines

Any help would be greatly appreciated!