new_contents: """
  List all available tasks
  """
  
  from management.commands import BaseCommand
  from utils.registry import registry, find_in_registry
  from utils.models import get_task_name
  
  import logging
  log = logging.getLogger(__name__)
  
  class Command(BaseCommand):
      args = ''
  
      def command(self, *args, **options):
          print "Available tasks:"
          print "        Name              -                 Help"
          for entry in registry:
              cls = entry.cls
              name = get_task_name(cls)
              help = getattr(cls, "help", "")
              print "{0} - {1}".format(name, help)
  
  
  
subject: Add command to list available tasks and help