old_contents: """Coordination chatroom game."""
  
  import dallinger as dlgr
  from dallinger.config import get_config
  try:
      unicode = unicode
  except NameError:  # Python 3
      unicode = str
  
  config = get_config()
  
  
  def extra_settings():
      config.register('network', unicode)
      config.register('n', int)
  
  
  class CoordinationChatroom(dlgr.experiments.Experiment):
      """Define the structure of the experiment."""
  
      def __init__(self, session):
          """Initialize the experiment."""
          super(CoordinationChatroom, self).__init__(session)
          self.experiment_repeats = 1
          self.num_participants = config.get('n')
          self.initial_recruitment_size = self.num_participants
          self.quorum = self.num_participants
          self.config = config
          if not self.config.ready:
              self.config.load_config()
          self.setup()
  
      def create_network(self):
          """Create a new network by reading the configuration file."""
          class_ = getattr(
              dlgr.networks,
              self.config.get('network')
          )
          return class_(max_size=self.num_participants)
  
      def info_post_request(self, node, info):
          """Run when a request to create an info is complete."""
          for agent in node.neighbors():
              node.transmit(what=info, to_whom=agent)
  
      def create_node(self, participant, network):
          """Create a node for a participant."""
          return dlgr.nodes.Agent(network=network, participant=participant)
  
new_contents: """Coordination chatroom game."""
  
  import dallinger as dlgr
  from dallinger.compat import unicode
  from dallinger.config import get_config
  
  config = get_config()
  
  
  def extra_settings():
      config.register('network', unicode)
      config.register('n', int)
  
  
  class CoordinationChatroom(dlgr.experiments.Experiment):
      """Define the structure of the experiment."""
  
      def __init__(self, session):
          """Initialize the experiment."""
          super(CoordinationChatroom, self).__init__(session)
          self.experiment_repeats = 1
          self.num_participants = config.get('n')
          self.initial_recruitment_size = self.num_participants
          self.quorum = self.num_participants
          self.config = config
          if not self.config.ready:
              self.config.load_config()
          self.setup()
  
      def create_network(self):
          """Create a new network by reading the configuration file."""
          class_ = getattr(
              dlgr.networks,
              self.config.get('network')
          )
          return class_(max_size=self.num_participants)
  
      def info_post_request(self, node, info):
          """Run when a request to create an info is complete."""
          for agent in node.neighbors():
              node.transmit(what=info, to_whom=agent)
  
      def create_node(self, participant, network):
          """Create a node for a participant."""
          return dlgr.nodes.Agent(network=network, participant=participant)
  
subject: Use compat for unicode import