怎么用python获得html中文本框数据 - python报错

"

<img src=""http://static.oschina.net/uploads/space/2013/0506/114249_HxCa_1016466.png"" alt="""" />

python代码怎么写获得用户名，密码信息？

# _*_ coding:utf8 _*_
import web 
import webbrowser
"""
urls = ("/.*", "hello") 
app = web.application(urls, globals()) 
 
class hello: 
    def GET(self): 
        return 'Login!' 
 
if __name__ == "__main__": 
    app.run()
"""
webbrowser.open_new_tab("login.html");