#!/usr/bin/python3

import numpy as np

def main():
a=np.array([[1,2,3],
	[4,5,6]
	])
	fp=open("data.txt","wb")
	np.save(fp,a)
	fp.close()

	fp=open("data.txt","rb")
	b=np.load(fp)
	fp.close()
	print (b)

if __name__=="__main__":
	main()