如何用python批量翻译文本?

# coding=utf-8
#authority：bing
#2017-7-18
import httplib
import md5
import urllib
import urllib2
import random
# import sys
# reload(sys)
# sys.setdefaultencoding('utf8')
#
appid = '20151113000005349'
secretKey = 'osubCEzlGjzvw8qdQc41'

httpClient = None
myurl = '/api/trans/vip/translate'
f = open("1.csv", 'r')
q = f.read(20000)#最多读这么多，再多点就会出问题。
fromLang = 'en'
toLang = 'zh'
salt = random.randint(32768, 65536)
sign = appid + q + str(salt) + secretKey
m1 = md5.new()
m1.update(sign)
sign = m1.hexdigest()
myurl = myurl + '?appid=' + appid + '&q=' + urllib.quote(q) + '&from=' + fromLang + '&to=' + toLang + '&salt=' + str(salt) + '&sign=' + sign
try:
    httpClient = httplib.HTTPConnection('api.fanyi.baidu.com')
    httpClient.request('GET', myurl)
    # response是HTTPResponse对象
    response = httpClient.getresponse()

    cc = response.read()
    ccc = cc.decode("unicode_escape")
    ccc = ccc.encode("utf-8")
    file_object = open('thefile.txt', 'w')
    file_object.write(ccc)
    file_object.close()
except Exception, e:
    print e
finally:
    if httpClient:
        httpClient.close()
f.close()