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pythonClient.py

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# telnet program example

import socket, select, string, sys

def prompt() :

sys.stdout.write('<You> ')

sys.stdout.flush()

#main function

if __name__ == "__main__":

if(len(sys.argv) < 3) :

print 'Usage : python telnet.py hostname port'

sys.exit()

host = sys.argv[1]

port = int(sys.argv[2])

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

s.settimeout(2)

# connect to remote host

try :

s.connect((host, port))

except :

print 'Unable to connect'

sys.exit()

print 'Connected to remote host. Start sending messages'

prompt()

while 1:

socket_list = [sys.stdin, s]

# Get the list sockets which are readable

read_sockets, write_sockets, error_sockets = select.select(socket_list , [], [])

for sock in read_sockets:

#incoming message from remote server

if sock == s:

data = sock.recv(4096)

if not data :

print '\nDisconnected from chat server'

sys.exit()

else :

#print data

sys.stdout.write(data)

prompt()

#user entered a message

else :

msg = sys.stdin.readline()

s.send(msg)

prompt()