[Tutor] Network Programming Information and terminology

[Byron]

Hi John,

Here is a link that you might find useful:
*http://compnetworking.about.com/od/basicnetworkingconcepts/*

---

Listed below are two very basic Python IM programs.  You'll need to run 
the server first -- let it run in the background.  Once this is running, 
start the second program, which allows you to type in a message and then 
the server program will acknowledge the reception of the data and then 
send a message back to you.

---


# PYTHON SERVER

import socket

# Create connection.
mySocket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
mySocket.bind(('', 2727))

while True:
	# Get data coming in from client.
	data, client = mySocket.recvfrom(100)
	print 'We have received a datagram from', client, '.'
	print data
	
	# Send a response to confirm reception!
	mySocket.sendto ( 'Message confirmed: ' + data, client )


---

# Client program

from socket import *

# Set the socket parameters
host = "127.0.0.1"
port = 2727
buf = 1024
addr = (host,port)

# Create socket
UDPSock = socket(AF_INET,SOCK_DGRAM)

def_msg = "===Enter message to send to server===";
print "\n", def_msg

# Send messages
while (1):
	data = raw_input('>> ')
	if not data:
		break
	else:
		if(UDPSock.sendto(data,addr)):
			print "Sending message '",data,"'....."
	
	# Receive the response back from the server.
	data, client = UDPSock.recvfrom(100)
	print data

# Close socket
UDPSock.close()


---

Hope this helps,

Byron

-------------------------------------------------------------------

John Walton wrote:

>Hello. It's me again.  Thanks for all the help with
>the Python Networking Resources, but does anyone know
>what I'll need to know to write a paper on Network
>Programming and Python.  Like terminology and all
>that.  Maybe I'll have a section on socketets, TCP,
>Clients (half of the stuff I don't even know what it
>means).  So, does anyone know any good websites with
>Network Programming information.  Thanks!
>
>John
>
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