File: class/Workbook/Examples/Lecture13/summer.py
import sys def summer(numCols, fileName): sums = [0] * numCols for line in open(fileName): cols = line.split() for i in range(numCols): sums[i] += eval(cols[i]) # any expr wil work! return sums if __name__ == '__main__': print summer(eval(sys.argv[1]), sys.argv[2])