old_contents: """
  Twitter OAuth1 backend, docs at:
      http://psa.matiasaguirre.net/docs/backends/twitter.html
  """
  from social.backends.oauth import BaseOAuth1
  from social.exceptions import AuthCanceled
  
  
  class TwitterOAuth(BaseOAuth1):
      """Twitter OAuth authentication backend"""
      name = 'twitter'
      EXTRA_DATA = [('id', 'id')]
      REQUEST_TOKEN_METHOD = 'POST'
      ACCESS_TOKEN_METHOD = 'POST'
      AUTHORIZATION_URL = 'https://api.twitter.com/oauth/authenticate'
      REQUEST_TOKEN_URL = 'https://api.twitter.com/oauth/request_token'
      ACCESS_TOKEN_URL = 'https://api.twitter.com/oauth/access_token'
      REDIRECT_STATE = True
  
      def process_error(self, data):
          if 'denied' in data:
              raise AuthCanceled(self)
          else:
              super(TwitterOAuth, self).process_error(data)
  
      def get_user_details(self, response):
          """Return user details from Twitter account"""
          fullname, first_name, last_name = self.get_user_names(response['name'])
          return {'username': response['screen_name'],
                  'email': response.get('email'),
                  'fullname': fullname,
                  'first_name': first_name,
                  'last_name': last_name}
  
      def user_data(self, access_token, *args, **kwargs):
          """Return user data provided"""
          return self.get_json(
              'https://api.twitter.com/1.1/account/verify_credentials.json?include_email=true',
              auth=self.oauth_auth(access_token)
          )
  
new_contents: """
  Twitter OAuth1 backend, docs at:
      http://psa.matiasaguirre.net/docs/backends/twitter.html
  """
  from social.backends.oauth import BaseOAuth1
  from social.exceptions import AuthCanceled
  
  
  class TwitterOAuth(BaseOAuth1):
      """Twitter OAuth authentication backend"""
      name = 'twitter'
      EXTRA_DATA = [('id', 'id')]
      REQUEST_TOKEN_METHOD = 'POST'
      ACCESS_TOKEN_METHOD = 'POST'
      AUTHORIZATION_URL = 'https://api.twitter.com/oauth/authenticate'
      REQUEST_TOKEN_URL = 'https://api.twitter.com/oauth/request_token'
      ACCESS_TOKEN_URL = 'https://api.twitter.com/oauth/access_token'
      REDIRECT_STATE = True
  
      def process_error(self, data):
          if 'denied' in data:
              raise AuthCanceled(self)
          else:
              super(TwitterOAuth, self).process_error(data)
  
      def get_user_details(self, response):
          """Return user details from Twitter account"""
          fullname, first_name, last_name = self.get_user_names(response['name'])
          return {'username': response['screen_name'],
                  'email': response.get('email', ''),
                  'fullname': fullname,
                  'first_name': first_name,
                  'last_name': last_name}
  
      def user_data(self, access_token, *args, **kwargs):
          """Return user data provided"""
          return self.get_json(
              'https://api.twitter.com/1.1/account/verify_credentials.json?include_email=true',
              auth=self.oauth_auth(access_token)
          )
  
subject: Update twitter.py