Row to Column Transposition （转置） using python

import sys

in_file = open(sys.argv[1])
out_file = open(sys.argv[2], 'w')

lis = [x.split() for x in in_file]

for x in zip(*lis):
    for y in x:
        print >> out_file, y + '\t',
    print >> out_file # add '\n' throuth 'print'
out_file.close()
in_file.close()

########

#!/usr/bin/python

import sys

USAGE = "usage: python transposition_v2.py inputfile outfile"

if len(sys.argv) !=3:
    print USAGE
    sys.exit()

with open(sys.argv[1], 'r') as infile:
    lis = [x.split() for x in infile]

with open(sys.argv[2], 'w') as outfile:
    for x in zip(*lis):
        outfile.write("\t".join(x) + "\n")