title: Multiple simultaneous network connections - Telnet server, Python
body: <p>I'm currently writing a telnet server in Python. It's a content server. People would connect to the server via telnet, and be presented with text-only content.</p>
  
  <p>My problem is that the server would obviously need to support more than one simultaneous connection. The current implementation I have now supports only one. </p>
  
  <p>This is the basic, proof-of-concept server I began with (while the program has changed greatly over time, the basic telnet framework hasn't):</p>
  
  <pre><code>import socket, os
  
  class Server:
      def __init__(self):
          self.host, self.port = 'localhost', 50000
          self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
          self.socket.bind((self.host, self.port))
  
      def send(self, msg):
          if type(msg) == str: self.conn.send(msg + end)
          elif type(msg) == list or tuple: self.conn.send('\n'.join(msg) + end)
  
      def recv(self):
          self.conn.recv(4096).strip()
  
      def exit(self):
          self.send('Disconnecting you...'); self.conn.close(); self.run()
          # closing a connection, opening a new one
  
      # main runtime
      def run(self):
          self.socket.listen(1)
          self.conn, self.addr = self.socket.accept()
          # there would be more activity here
          # i.e.: sending things to the connection we just made
  
  
  S = Server()
  S.run()
  </code></pre>
  
  <p>Thanks for your help. </p>