import to quizlet from bing dictionary

bing2quizlet.py

#!/usr/bin/python2.7
# -*- coding: UTF-8 -*-
import sys
if len(sys.argv)!=3:
    print "Usage:"
    print "python bing2quizlet.py BingDictExport.txt QuizletImport.txt"
    exit(1)
print sys.argv
infile=sys.argv[1]
outfile=sys.argv[2]
word_anchor=u"单词:"
anchor=u":"
word_dict={}
encoding_string="utf8"
with open(infile) as ifd:
    line=ifd.readline()
    try:
        line = unicode(line, "utf8")
    except UnicodeDecodeError:
        print "the encoding of input file is not utf8, try gb2312"
        encoding_string="gb2312"

with open(infile) as ifd:
    lines=ifd.readlines()
    for idx in range(len(lines)):
        line=unicode(lines[idx],encoding_string)
        if line.find(word_anchor)==0:
            word_start_index=line.find(anchor)+1
            word=line[word_start_index:-1]
            idx+=2
            line=unicode(lines[idx],encoding_string)
            meaning_start_index=line.find(anchor)+1
            meaning=line[meaning_start_index:]
            word_dict[word]=meaning
with open(outfile,'w') as ofd:
    for word,meaning in word_dict.items():
        line=word+u"\t"+meaning
        line=line.encode("utf8")
        ofd.write(line)