new_contents: import socket
  
  SEND_BUF_SIZE = 4096
  RECV_BUF_SIZE = 4096
  
  def modify_buff_size():
      sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
      
      bufsize = sock.getsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF)
      print "Buffer size [Before]:%d" %bufsize
      sock.setsockopt(socket.SOL_TCP, socket.TCP_NODELAY, 1)
      sock.setsockopt(socket.SOL_SOCKET
                  ,socket.SO_SNDBUF
                  ,SEND_BUF_SIZE)
      sock.setsockopt(socket.SOL_SOCKET,
                      socket.SO_RCVBUF,
                      RECV_BUF_SIZE)
      bufsize = sock.getsockopt(socket.SOL_SOCKET, socket.SO_SNDBUF)
      print "Buffer size [After]:%d" %bufsize
      
  if __name__ == '__main__':
      modify_buff_size()
subject: modify buf size