排序 sort -u

# -*- coding:utf-8-*-
from __future__ import with_statement
import sys

def sortu(filename):
    with open(filename) as f: 
        x = open(targetfile,"w")
        for j in  list(set([i.strip() for i in f])) :
            print >> x,j
        x.close()
if __name__ == '__main__':
    filename = sys.argv[1] 
    targetfile = sys.argv[2]    
    sortu(filename)