old_contents: import argparse
  import logging
  from sys import exit
  
  from py3tftp import __version__
  
  EPILOG = """
  Released under the MIT license.
  Copyright 2016 Matt O. <matt@mattscodecave.com>
  """
  
  logging_config = {
      'format': '%(asctime)s [%(levelname)s] %(message)s',
      'level': logging.INFO,
      'filename': None
  }
  
  
  def print_version():
      print("py3tftp version: {}".format(__version__))
  
  
  def parse_cli_arguments():
      parser = argparse.ArgumentParser(epilog=EPILOG)
      parser.add_argument('--host',
                          default='0.0.0.0',
                          help=('IP of the interface the server will listen on. '
                                'Default: 0.0.0.0'))
      parser.add_argument(
          '-p',
          '--port',
          default=9069,
          type=int,
          help=('Port the server will listen on. '
                'Default: 9069. TFTP standard-compliant port: 69 - '
                'requires superuser privileges.'))
      parser.add_argument(
          '--ack-timeout',
          default=0.5,
          type=float,
          help='Timeout for each ACK of the lock-step. Default: 0.5.')
      parser.add_argument(
          '--conn-timeout',
          dest="timeout",
          default=3.0,
          type=float,
          help=('Timeout before the server gives up on a transfer and closes '
                'the connection. Default: 3.'))
      parser.add_argument('-l', '--file-log', help='Append output to log file.')
      parser.add_argument('-v',
                          '--verbose',
                          action='store_true',
                          help='Enable debug-level logging.')
      parser.add_argument('--version', action='store_true')
  
      args = parser.parse_args()
  
      if args.verbose:
          logging_config['level'] = logging.DEBUG
  
      if args.file_log:
          logging_config['filename'] = args.log
  
      if args.version:
          print_version()
          exit()
  
      logging.basicConfig(**logging_config)
      return args
  
new_contents: import argparse
  import logging
  from sys import exit
  
  from py3tftp import __version__
  
  EPILOG = """
  Released under the MIT license.
  Copyright 2016 Matt O. <matt@mattscodecave.com>
  """
  
  logging_config = {
      'format': '%(asctime)s [%(levelname)s] %(message)s',
      'level': logging.INFO,
      'filename': None
  }
  
  
  def print_version():
      print("py3tftp version: {}".format(__version__))
  
  
  def parse_cli_arguments():
      parser = argparse.ArgumentParser(epilog=EPILOG)
      parser.add_argument('--host',
                          default='0.0.0.0',
                          help=('IP of the interface the server will listen on. '
                                'Default: 0.0.0.0'))
      parser.add_argument(
          '-p',
          '--port',
          default=9069,
          type=int,
          help=('Port the server will listen on. '
                'Default: 9069. TFTP standard-compliant port: 69 - '
                'requires superuser privileges.'))
      parser.add_argument(
          '--ack-timeout',
          default=0.5,
          type=float,
          help='Timeout for each ACK of the lock-step. Default: 0.5.')
      parser.add_argument(
          '--conn-timeout',
          dest="timeout",
          default=3.0,
          type=float,
          help=('Timeout before the server gives up on a transfer and closes '
                'the connection. Default: 3.'))
      parser.add_argument('-l', '--file-log', help='Append output to log file.')
      parser.add_argument('-v',
                          '--verbose',
                          action='store_true',
                          help='Enable debug-level logging.')
      parser.add_argument('--version', action='store_true')
  
      args = parser.parse_args()
  
      if args.verbose:
          logging_config['level'] = logging.DEBUG
  
      if args.file_log:
          logging_config['filename'] = args.file_log
  
      if args.version:
          print_version()
          exit()
  
      logging.basicConfig(**logging_config)
      return args
  
subject: Fix logfile parsing