code: def lock(resources, *args, **kwargs):
      
      # all resources are locked if nothing is specified
      if not resources:
          client = redis.Redis(decode_responses=True, **kwargs)
          resources = find_resources(client)
  
      if not resources:
          return
  
      # create one process per pid
      locker = Locker(**kwargs)
      while len(resources) > 1:
          pid = os.fork()
          resources = resources[:1] if pid else resources[1:]
  
      # at this point there is only one resource - lock it down
      resource = resources[0]
      try:
          print('{}: acquiring'.format(resource))
          with locker.lock(resource, label='lock tool'):
              print('{}: locked'.format(resource))
              try:
                  signal.pause()
              except KeyboardInterrupt:
                  print('{}: released'.format(resource))
      except KeyboardInterrupt:
          print('{}: canceled'.format(resource))
docs: Lock resources from the command line, for example for maintenance.