網站需要更新python

Question

我大修的網站目前使用python 2.3.7，並且使用Google App Engine進行管理，它必須更新到2.7版本，並且由於新版本功能，模板部分已折舊。需要做出什麼修改呢？僅供參考，我是一名高中生在聊天室網站上做這件事。當我重寫app.yaml的更改時，更改.py內的代碼（然後將文件重新命名爲.app），它會引發此跟蹤錯誤。幫幫我？

File "/base/python27_runtime/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 196, in Handle 
    handler = _config_handle.add_wsgi_middleware(self._LoadHandler()) 
    File "/base/python27_runtime/python27_lib/versions/1/google/appengine/runtime/wsgi.py", line 255, in _LoadHandler 
    handler = __import__(path[0]) 
ImportError: No module named devchat 

我進口

import cgi 
import os 
import urllib 
import logging 

from google.appengine.api import users 
from google.appengine.ext import webapp 
from google.appengine.ext.webapp.util import run_wsgi_app 
from google.appengine.ext import db 
from google.appengine.ext.webapp import template 
from google.appengine.api import memcache 

有關模板的代碼段是在這裏

class BaseRequestHandler(webapp.RequestHandler): 

    def generate(self, template_name, template_values={}): 
    # We check if there is a current user and generate a login or logout URL 
    user = users.get_current_user() 

    if user: 
     log_in_out_url = users.create_logout_url('/') 
    else: 
     log_in_out_url = users.create_login_url(self.request.path) 

    # We'll display the user name if available and the URL on all pages 
    values = {'user': user, 'log_in_out_url': log_in_out_url} 
    values.update(template_values) 

    # Construct the path to the template 
    directory = os.path.dirname(__file__) 
    path = os.path.join(directory, 'templates', template_name) 

    # Respond to the request by rendering the template 
    self.response.out.write(template.render(path, values, debug=_DEBUG)) 

class MainRequestHandler(BaseRequestHandler): 
    def get(self): 
    if users.get_current_user(): 
     url = users.create_logout_url(self.request.uri) 
     url_linktext = 'Logout' 
    else: 
     url = users.create_login_url(self.request.uri) 
     url_linktext = 'Login' 

    template_values = { 
     'url': url, 
     'url_linktext': url_linktext, 
     } 

    self.generate('index.html', template_values); 

class ChatsRequestHandler(BaseRequestHandler): 
    def renderChats(self): 
    greetings_query = Greeting.all().order('date') 
    greetings = greetings_query.fetch(1000) 

    template_values = { 
     'greetings': greetings, 
    } 
    return self.generate('chats.html', template_values) 

    def getChats(self, useCache=True): 
    if useCache is False: 
     greetings = self.renderChats() 
     if not memcache.set("chat", greetings, 10): 
     logging.error("Memcache set failed:") 
     return greetings 

    greetings = memcache.get("chats") 
    if greetings is not None: 
     return greetings 
    else: 
     greetings = self.renderChats() 
     if not memcache.set("chat", greetings, 10): 
     logging.error("Memcache set failed:") 
     return greetings 

    def get(self): 
    self.getChats() 

    def post(self): 
    greeting = Greeting() 

    if users.get_current_user(): 
     greeting.author = users.get_current_user() 

    greeting.content = self.request.get('content') 
    greeting.put() 

    self.getChats(False)` 

Answer 1

這裏是一個非常不錯的視頻，這也解釋了你怎麼也得更新應用程序： https://developers.google.com/events/io/sessions/gooio2012/300/