Basic client/server with sockets

Natan nvivo at terra.com.br
Mon Feb 10 23:10:35 CET 2003


I'm new to python ans i have a script like this:

---
import socket, time

HOST = 'localhost'
PORT = 5091

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((HOST, PORT))

while 1:
    input = raw_input("> ")
    s.send(input)
    try: data = s.recv(1024)
    except: data = ''
    print data
---

there is a simple server that simply sends back whatever i type in
raw_input, but the problem is that everytime i hit ENTER without
typing anything, the s.recv(n) hangs the server... i noticed that if
the server don't send anything it simply hangs in the recv()
function...

what am i doing wrong? is this the right way to do this? shound't it
just return nothing if the buffer is empty?

by the way... the server code:

---
import socket, time

HOST = 'localhost'
PORT = 5091

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((HOST, PORT))
s.listen(1)

conn, addr = s.accept()

while 1:
    data = conn.recv(32)
    conn.send(data)

--




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