old_contents: from django.conf import settings
  from django.contrib.sites.models import Site
  from django.core.urlresolvers import reverse
  from socialregistration.clients.oauth import OAuth
  from socialregistration.settings import SESSION_KEY
  import urlparse
  
  class Twitter(OAuth):
      api_key = getattr(settings, 'TWITTER_CONSUMER_KEY', '')
      secret_key = getattr(settings, 'TWITTER_CONSUMER_SECRET_KEY', '')
      
      request_token_url = 'https://api.twitter.com/oauth/request_token'
      access_token_url = 'https://api.twitter.com/oauth/access_token'
      auth_url = 'https://api.twitter.com/oauth/authenticate'
      
      def get_callback_url(self, **kwargs):
          if self.is_https():
              return urlparse.urljoin(
                  'https://%s' % Site.objects.get_current().domain,
                  reverse('socialregistration:twitter:callback'))
          return urlparse.urljoin(
              'http://%s' % Site.objects.get_current().domain,
              reverse('socialregistration:twitter:callback'))
      
      def get_user_info(self):
          return self._access_token_dict
  
      @staticmethod
      def get_session_key():
          return '%stwitter' % SESSION_KEY
  
  
new_contents: from django.conf import settings
  from django.contrib.sites.models import Site
  from django.core.urlresolvers import reverse
  from socialregistration.clients.oauth import OAuth
  from socialregistration.settings import SESSION_KEY
  import urlparse
  
  class Twitter(OAuth):
      api_key = getattr(settings, 'TWITTER_CONSUMER_KEY', '')
      secret_key = getattr(settings, 'TWITTER_CONSUMER_SECRET_KEY', '')
      
      request_token_url = 'https://api.twitter.com/oauth/request_token'
      access_token_url = 'https://api.twitter.com/oauth/access_token'
      auth_url = 'https://api.twitter.com/oauth/authenticate'
      
      info_url = 'https://api.twitter.com/1/account/verify_credentials.json'
  
      def get_callback_url(self, **kwargs):
          if self.is_https():
              return urlparse.urljoin(
                  'https://%s' % Site.objects.get_current().domain,
                  reverse('socialregistration:twitter:callback'))
          return urlparse.urljoin(
              'http://%s' % Site.objects.get_current().domain,
              reverse('socialregistration:twitter:callback'))
      
      def get_user_info(self):
          return self.request(self.info_url)
  
      @staticmethod
      def get_session_key():
          return '%stwitter' % SESSION_KEY
  
  
subject: use twitter's api to obtain user info