用python编写的一个google翻译

ahua671

其实就是一个页面提交，然后抓取页面数据的过程

#coding=utf-8
# trans.py
# create :2010-6-2
# last modify: 2010-6-3
# author : ice_cube
import urllib,urllib2  
from sgmllib import SGMLParser  
class URLLister(SGMLParser):  
"""
页面分析
"""
def reset(self):  
SGMLParser.reset(self)  
self.result = []  
self.open = False
def start_span(self, attrs):  
id = [v for k, v in attrs if k=='id']  
if 'result_box' in id:  
self.open = True
def handle_data(self, text):  
if self.open:  
self.result.append(text)  
self.open = False
class GoogleTranslate(object):
def __init__(self):
self.url = 'http://translate.google.cn/translate_t'
def en2zh(self, text):
"""从英文翻译到中文  text为要翻译的内容"""
values={'hl':'zh-CN','ie':'utf8','text':text,'langpair':"en|zh-CN"}  
result = self.get_result(values)
return result
def zh2en(self, text):
"""从中文翻译到英文  text为要翻译的内容"""
values={'hl':'zh-CN','ie':'utf8','text':text,'langpair':"zh-CN|en"}  
result = self.get_result(values)
return result
def get_result(self, values):
result = ""
data = urllib.urlencode(values)  
req = urllib2.Request(self.url, data)  
req.add_header('User-Agent', "Mozilla/5.0+(compatible;+Googleb\
/2.1;++http://www.google.com/bot.html)")  
response = urllib2.urlopen(req)  
parser = URLLister()  
parser.feed(response.read())  
parser.close()  
for i in parser.result:  
result += i + " "
return result
if __name__ == "__main__":
trans = GoogleTranslate()
while True:  
text = raw_input("请输入要翻译的英文(退出输入q)：")  
if text=='q':  
break;  
print "翻译结果:"
print trans.en2zh(text)
print trans.zh2en(text)