text: #!/usr/bin/env python2.7
  # Copyright 2015 gRPC authors.
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  """Opens a TCP connection to a specified server and then exits."""
  
  import argparse
  import socket
  import threading
  import time
  import sys
  
  
  def main():
    argp = argparse.ArgumentParser(description='Open a TCP handshake to a server')
    argp.add_argument('-s', '--server_host', default=None, type=str,
                      help='Server host name or IP.')
    argp.add_argument('-p', '--server_port', default=0, type=int,
                      help='Port that the server is listening on.')
    argp.add_argument('-t', '--timeout', default=1, type=int,
                      help='Force process exit after this number of seconds.')
    args = argp.parse_args()
    socket.create_connection([args.server_host, args.server_port])
  
  if __name__ == '__main__':
    main()
  