Restart socket server in python

Question

I've wrote a simple socket server in python (OS X). I want the server to restart when a client terminate the communication, so that the client can do a reconnect to the server. Look at the code below, what do i have to do at the "lost contact" IF? I'm completely new to Python.

Here is the code:

import socket              
import os

s = socket.socket()       
host = socket.gethostname() 
port = 5555               


os.system('clear') 
print 'Server started'
print 'Waiting'

s.bind((host, port))       
s.listen(5)                 
c, addr = s.accept()     
print 'Contact', addr   
while True:
    msg = c.recv(1024)
    if not msg:
       s.close
       print "Lost contact"
       exit ()
    else: 
       print msg

shouldn't s = socket.socket() be s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)? Also, why do you need to restart the server? The client should be able to reconnect. Also, can you add the client software - perhaps that is the issue. Lastly, I believe that the os module is outdated - I may be wrong though (It does have its uses... I think ) — xxmbabanexx
– xxmbabanexx, Commented Feb 25, 2013 at 23:03
@xxmbabanexx, the default parameters for socket.socket() are socket.AF_INET and socket.SOCK_STREAM so they can be left out. — Mark Tolonen
– Mark Tolonen, Commented Sep 7, 2013 at 21:19

mdw7326 · Accepted Answer · 2013-09-07 20:55:14Z

1

I dont know if you ever found your answer but i found this when i was searching for the same problem. I was trying to reset the socket on the server so that I could connect to the next client so i tried using socket.close() and then reinitializing the whole socket, but you actually don't need to do anything on the server side, just use socket.close() on the client side and another client can connect without screwing up the server (I realize this probably doesnt help you much now but in case anyone else did what i did I wanted them to know)

answered Sep 7, 2013 at 20:55

mdw7326

4447 silver badges28 bronze badges

Sign up to request clarification or add additional context in comments.

Comments

user13758241 · Accepted Answer · 2020-07-02 13:50:11Z

0

If I got you, you want to listen again when client gets disconnected so this should do its job:

import socket              
import os

s = socket.socket()       
host = socket.gethostname() 
port = 5555               


os.system('clear') 
print 'Server started'
print 'Waiting'

def server():
  s.bind((host, port))       
  s.listen(5)                 
  c, addr = s.accept()     
  print 'Contact', addr   
  while True:
      msg = c.recv(1024)
      if not msg:
         s.close
         print "Restarting..."
         server()
      else: 
         print msg

answered Jul 2, 2020 at 13:50

user13758241

11 silver badge7 bronze badges

Collectives™ on Stack Overflow

Restart socket server in python

2 Answers 2

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related