code: def start(info):
      
      cmd = options.paved.django.runserver
  
      if cmd == 'runserver_plus':
          try:
              import django_extensions
          except ImportError:
              info("Could not import django_extensions. Using default runserver.")
              cmd = 'runserver'
  
      port = options.paved.django.runserver_port
      if port:
          cmd = '%s %s' % (cmd, port)
  
      call_manage(cmd)
docs: Run the dev server.
  
      Uses `django_extensions <http://pypi.python.org/pypi/django-extensions/0.5>`, if
      available, to provide `runserver_plus`.
  
      Set the command to use with `options.paved.django.runserver`
      Set the port to use with `options.paved.django.runserver_port`