在GAE下，用webapp框架，希望通过weibopy这个weibo的python SDK进行oauth认证。

贴上代码

#coding=utf-8
import os
from google.appengine.ext import webapp
from google.appengine.ext.webapp.util import run_wsgi_app
from google.appengine.ext.webapp import template
from weibopy.auth import OAuthHandler
from weibopy.api import API
from gaesessions import get_current_session

CONSUMER_KEY = "key"
CONSUMER_SECRET = "secret"

class MainPage(webapp.RequestHandler):
  def get(self):
    session = get_current_session()
    if not self.request.get('oauth_token'):
      auth = OAuthHandler(CONSUMER_KEY, CONSUMER_SECRET, callback="http://localhost:8080") 
      auth_url = auth.get_authorization_url()
      # 需要保存request_token的信息，留做取access_token用
      session["oauth_token"] = auth.request_token.key
      session["oauth_token_secret"] = auth.request_token.secret
      self.redirect(auth_url)
    else:
      oauth_verifier = self.request.get("oauth_verifier")
      auth = OAuthHandler(CONSUMER_KEY, CONSUMER_SECRET)
      # 从session中取出request_token的信息
      auth.set_request_token(session["oauth_token"], session["oauth_token_secret"])
      auth.get_access_token(oauth_verifier)
      api = API(auth)
      path = os.path.join(os.path.dirname(__file__), "templates/index.html")
      self.response.out.write(template.render(path,
            {"name": api.verify_credentials.screen_name}))

application = webapp.WSGIApplication([
    ('/', MainPage),
], debug=True)

def main():
  run_wsgi_app(application)

if __name__ == "__main__":
  main()

关键在于下列几点:

1. 需要用到session，gae不带session功能，需要用到外部库<a href="https://github.com/dound/gae-sessions/wiki/">gaesessions</a>
2. 在跳转去认证页面前，要保存request_token的信息到session里
3. 在获取access_token的信息时，需要request_token和oauth_verifier