python socketserver connection timeout -

i new python socket programming. trying create simple chat application trying send data client program server in server program while receiving data encountering "timed out"

my client program-

import socket port = 3017  def handler(req):     s = socket.socket(socket.af_inet, socket.sock_stream)     try:         s.connect(("localhost", port))     except socket.error, msg:         print("error connecting socket")         s = none     finally:         f.close()     s.settimeout(10.0)     s.send(req)     line = s.recv(1024)     s.close()     return line   if __name__ == '__main__':     while(1):         input = raw_input(">")         resp = handler(input)         print resp 

my server program-

import socket import socketserver  class echo_server(socketserver.streamrequesthandler):     def handle(self):         timeout_telnet = float(2.0)         self.connection.settimeout(timeout_telnet)          data = []         # read in lines.         while 1:             try:                 line = self.rfile.readline()             except baseexception, e:                 # timeout.                 print("error", e)                 break             data.append(line)             print("data in handle method-\n", data)             self.wfile.write(("echo data- ".join(data)))             break          # goodbye   def main():     s = socketserver.threadingtcpserver(("", 3017), echo_server)     try:         s.serve_forever()     except keyboardinterrupt:         print("shutting down.")         s.socket.close()   if __name__ == "__main__":     main() 

your problem because need control messages length when using stream-sockets.

what happends there:

your client sending data (n bytes). server reading data socket, not know "message" complete or additional data sent.

what can do? if replace

self.rfile.readline()

with self.request.recv(10) - server read 10 bytes , send them back. can set message size messages server , client sending each other.

also usefull info here: https://docs.python.org/2/howto/sockets.html#using-a-socket

here example of simplest chat:

client

def handler(req):     s = socket.socket(socket.af_inet, socket.sock_stream)     s.connect(("localhost", port))     message = req     s.send(req)     print s.recv(1024)     s.close() 

server

def handle(self):     while true:         line = self.request.recv(1024)         if line:             print("data in handle method-\n", line.strip())             self.wfile.write(line) 

but face problens later , python documentation can understanding how works.