old_contents: #!/usr/bin/env python
  # encoding: utf-8
  
  '''
  @author: Tsuyoshi Hombashi
  '''
  
  from __future__ import with_statement
  import sys
  
  import thutils
  import tcconfig
  
  
  def parse_option():
      parser = thutils.option.ArgumentParserObject()
      parser.make(version="0.2.0")
  
      group = parser.add_argument_group("Traffic Control")
      group.add_argument(
          "--device", required=True,
          help="network device name")
      group.add_argument(
          "--rate",
          help="network bandwidth to apply the limit [K|M|G bps]")
      group.add_argument(
          "--delay", type=float, default=0,
          help="round trip network delay [ms] (default=%(default)s)")
      group.add_argument(
          "--loss", type=float, default=0,
          help="round trip packet loss rate [%%] (default=%(default)s)")
      group.add_argument(
          "--network",
          help="destination network of traffic control")
      group.add_argument(
          "--port", type=int,
          help="destination port of traffic control")
      group.add_argument(
          "--overwrite", action="store_true", default=False,
          help="overwrite existing setting")
  
      return parser.parse_args()
  
  
  @thutils.main.Main
  def main():
      options = parse_option()
  
      thutils.initialize_library(__file__, options)
      thutils.common.verify_install_command(["tc"])
  
      subproc_wrapper = thutils.subprocwrapper.SubprocessWrapper()
      tc = tcconfig.TrafficControl(subproc_wrapper, options.device)
      tc.rate = options.rate
      tc.delay_ms = options.delay
      tc.loss_percent = options.loss
      tc.network = options.network
      tc.port = options.port
  
      import logging
      subproc_wrapper.command_log_level = logging.DEBUG
  
      tc.validate()
  
      if options.overwrite:
          tc.delete_tc()
  
      tc.set_tc()
      #tc.set_tc(options.rate, options.delay, options.loss, options.network)
  
      return 0
  
  
  if __name__ == '__main__':
      sys.exit(main())
  
new_contents: #!/usr/bin/env python
  # encoding: utf-8
  
  '''
  @author: Tsuyoshi Hombashi
  '''
  
  from __future__ import with_statement
  import sys
  
  import thutils
  import tcconfig
  
  
  def parse_option():
      parser = thutils.option.ArgumentParserObject()
      parser.make(version="0.2.0")
  
      group = parser.add_argument_group("Traffic Control")
      group.add_argument(
          "--device", required=True,
          help="network device name")
      group.add_argument(
          "--rate",
          help="network bandwidth to apply the limit [K|M|G bps]")
      group.add_argument(
          "--delay", type=float, default=0,
          help="round trip network delay [ms] (default=%(default)s)")
      group.add_argument(
          "--loss", type=float, default=0,
          help="round trip packet loss rate [%%] (default=%(default)s)")
      group.add_argument(
          "--network",
          help="destination network of traffic control")
      group.add_argument(
          "--port", type=int,
          help="destination port of traffic control")
      group.add_argument(
          "--overwrite", action="store_true", default=False,
          help="overwrite existing setting")
  
      return parser.parse_args()
  
  
  @thutils.main.Main
  def main():
      options = parse_option()
  
      thutils.initialize_library(__file__, options)
      thutils.common.verify_install_command(["tc"])
  
      subproc_wrapper = thutils.subprocwrapper.SubprocessWrapper()
      tc = tcconfig.TrafficControl(subproc_wrapper, options.device)
      tc.rate = options.rate
      tc.delay_ms = options.delay
      tc.loss_percent = options.loss
      tc.network = options.network
      tc.port = options.port
  
      tc.validate()
  
      if options.overwrite:
          tc.delete_tc()
  
      tc.set_tc()
      #tc.set_tc(options.rate, options.delay, options.loss, options.network)
  
      return 0
  
  
  if __name__ == '__main__':
      sys.exit(main())
  
subject: Remove unnecessary code