Echo server: Difference between revisions

=={{header|Python}}==

{{works with|Python|2.3 or above}}

<lang python>import SocketServer

HOST = "localhost"

PORT = 12321

# this server uses ThreadingMixIn - one thread per connection

# replace with ForkMixIn to spawn a new process per connection

class EchoServer(SocketServer.ThreadingMixIn, SocketServer.TCPServer):

# no need to override anything - default behavior is just fine

pass

class EchoRequestHandler(SocketServer.StreamRequestHandler):

"""

Handles one connection to the client.

"""

def handle(self):

print "connection from %s" % self.client_address[0]

while True:

line = self.rfile.readline()

if not line: break

print "%s wrote: %s" % (self.client_address[0], line.rstrip())

self.wfile.write(line)

print "%s disconnected" % self.client_address[0]

# Create the server

server = EchoServer((HOST, PORT), EchoRequestHandler)

# Activate the server; this will keep running until you

# interrupt the program with Ctrl-C

print "server listening on %s:%s" % server.server_address

server.serve_forever()</lang>