为什么在前端输入localhost：8080/提示not found 是路径不对么

import web

render = web.template.render('tompalates') #相对路径或绝对路径  相对与.py文件

urls = (

'/index', 'index',

'/blog/\d+', 'blog',

'/(.*),', 'hello'

)

app = web.application(urls, globals())

class index:

def GET(self):

query = web.input()

return query

class blog:

def POST(self):

data = web.input()

return data

def GET(self):

return web.ctx.env

class hello:

def GET(self, name):

return render.hello1()