# This sample program calculates total food production
# and writes the result to an external file
# using savetxt command.
# The external file is : foodprod.dat

import numpy as np

fdat = np.loadtxt('food.dat', skiprows=5, usecols=(1,2,3,4,5,6,7,8,9))

totalprod = np.sum(fdat, axis=0)

print( totalprod )

np.savetxt('foodprod.dat', totalprod, fmt='%7.2f')