Twitter OAuth handler (gae/py, webapp2, tweepy)

twitter.py

import webapp2, tweepy

consumer_token = 'CONSUMER KEY'
consumer_secret = 'CONSUMER SECRET'
auth = tweepy.OAuthHandler(consumer_token, consumer_secret)  

class Twitter(webapp2.RequestHandler):
    def get(self):
        oauth_token = self.request.get("oauth_token")
        oauth_verifier = self.request.get("oauth_verifier")
        if oauth_token:
            auth.get_access_token(oauth_verifier)
        try:
            api = tweepy.API(auth)
            me = api.me()
            self.response.write('Hi %s!' % me.name)
        except:
            auth_url = auth.get_authorization_url()
            self.response.write("<a href='%s'>Twitter login</a>" % auth_url) 

app = webapp2.WSGIapplication([('/', Twitter)])

def main():
    app.run()