Grab definition from youdao dict and generate the word book for reviewing

GrabToefl.py

import re,json,requests
from bs4 import BeautifulSoup
from bs4 import CData
import sys,os

web_url = u'http://dict.youdao.com/search?keyfrom=dict.top&q='
def readfile(s):
    with open(s,'r') as f:
        lines = f.readlines()
        f.close()
    return lines


def query(word):
    global web_url
    html = requests.get(web_url + word)
    soup = BeautifulSoup(html.text,"lxml")
    root = soup.find(id='results-contents')
    trans = root.find(id='phrsListTab').find(class_='trans-container')
    result = [tran.string for tran in trans.find_all('li')]
    return '\n'.join(result)


def addword(root,words):
    item = root.new_tag("item")
    word = root.new_tag("word")
    trans = root.new_tag("trans")
    tags = root.new_tag("tags")
    tags.string = "TOEFL"
    trans.string = CData(query(words))
    word.string = words
    item.append(word)
    item.append(trans)
    item.append(tags)
    root.wordbook.append(item)


if __name__ == "__main__":
    root = BeautifulSoup("<wordbook></wordbook>","xml")
    words = readfile(sys.argv[1])
    for word in words:
        addword(root, word.strip())

    with open(sys.argv[2],'w',encoding='utf-8') as f:
        f.write(str(root.wordbook))
        f.close()