old_contents: # coding: utf-8
  """Command line functions.
  
  """
  import argparse
  
  import poliastro
  from poliastro.neos.dastcom5 import download_dastcom5
  
  
  def main():
      parser = argparse.ArgumentParser(
          prog="poliastro",
          description="Command line tools for the poliastro Python library.")
      parser.add_argument("--version", action='version',
                          version=poliastro.__version__)
  
      subparsers = parser.add_subparsers(help='Available commands')
  
      download_parser = subparsers.add_parser(
          "download-dastcom5",
          help="Downloads DASTCOM5 database")
      download_parser.add_argument(
          "-p", "--path", help="Download path")
  
      args = parser.parse_args()
      try:
          if args.path:
              download_dastcom5(args.path)
          else:
              download_dastcom5()
      except AttributeError:
          parser.print_help()
  
new_contents: # coding: utf-8
  """Command line functions.
  
  """
  import argparse
  
  import poliastro
  from poliastro.neos.dastcom5 import download_dastcom5
  
  
  def main():
      parser = argparse.ArgumentParser(
          prog="poliastro",
          description="Command line tools for the poliastro Python library.")
      parser.add_argument("--version", action='version',
                          version=poliastro.__version__)
      parser.add_argument("--download-dastcom5", action="store_true",
                          help="Downloads DASTCOM5 database")
  
      args = parser.parse_args()
  
      if args.download_dastcom5:
          download_dastcom5()
      else:
          parser.print_help()
  
subject: Remove CLI parameters