title: Get python tcp server to send and recive messages once that are sent?
body: <p>I have been experimenting with network programing with python. To teach myself how to do this I have been playing with multiple versions of TCP chat servers and clients. My newest attempt has left me wondering what is wrong with the code I have just written. Only when a message has been sent from the client I have just created, does the other messages come in. I am not sure why this is happening. I have been searching online and I can't figure out why it is happening. All I do know is that it is not the servers mistake. I am certain that the problem is with the client I just created.</p>
  
  <pre><code>import socket, thread, threading, os
  
  def sendMsg():
      Message = raw_input('[-]You:')
      s.send(Message)
  
  def recvMsg():
      data = s.recv(buff)
      print(data)
  
  s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
  
  host = raw_input('[-]Target Ip-&gt; ')
  port = 5000
  buff = 1024
  
  try:
      s.connect((host, port))
  
  except:
      print('[-]Failed to Connect')
      s.close()
  
  loop = True
  threads = []
  while loop == True:
      try:
          t1 = threading.Thread(target=sendMsg())
          threads.append(t1)
          t1.start()
  
          t2 = threading.Thread(target=recvMsg())
          threads.append(t2)
          t2.start()
  
      except KeyboardInterrupt:
          print('\n')
          break
  
  
  s.close()
  os.system('clear')
  </code></pre>
  
  <p>Server code</p>
  
  <pre><code># Tcp Chat server
  
  import socket, select, os, time
  
  def broadcast_data (sock, message):
      for socket in CONNECTION_LIST:
              if socket != server_socket and socket != sock :
              try :
                  socket.send(message)
              except :
                  socket.close()
                  CONNECTION_LIST.remove(socket)
  
  if __name__ == "__main__":
  
          CONNECTION_LIST = []
      RECV_BUFFER = 4096
      IP_MNG = ''
      PORT = 5000     
      server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
      server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
      server_socket.bind((IP_MNG, PORT))
  
      server_socket.listen(10)
      CONNECTION_LIST.append(server_socket)
  
      print "[-]Connected To " + str(PORT)
  
      start = True 
      while start == True:
          try:
              read_sockets,write_sockets,error_sockets = select.select(CONNECTION_LIST,[],[])
  
              for sock in read_sockets:
                      if sock == server_socket:
                      sockfd, addr = server_socket.accept()
                      CONNECTION_LIST.append(sockfd)
                      print "Client (%s, %s) connected" % addr
                      broadcast_data(sockfd, "[-][%s:%s] entered room\n" % addr)
  
  
                  else:
  
                          try:
                          data = sock.recv(RECV_BUFFER)
                          if data:
                              broadcast_data(sock, "\r" + '&lt;' + str(sock.getpeername()) + '&gt; ' + data)                
  
                      except:
                          broadcast_data(sock, "Client (%s, %s) is offline" % addr)
                          print "Client (%s, %s) is offline" % addr
                          sock.close()
                          CONNECTION_LIST.remove(sock)
                          continue
  
          except KeyboardInterrupt:
              print('[-]Server Stopped')
              start = False
  
  
  server_socket.close()
  time.sleep(1)
  os.system('clear')
  </code></pre>