python 中 select 函数求解

import select
import socket
import Queue

#create a socket
server = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
server.setblocking(False)
#set option reused
server.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR , 1)

server_address= ('localhost',10001)
server.bind(server_address)

server.listen(10)

#sockets from which we except to read
inputs = [server]

#sockets from which we expect to write
outputs = []

#Outgoing message queues (socket:Queue)
message_queues = {}

#A optional parameter for select is TIMEOUT
timeout = 10

while inputs:
    print "waiting for next event"
#--------------------------------------------------
    readable , writable , exceptional = select.select(inputs, outputs, inputs)
#--------------------------------------------------
    for temp in readable:
        print temp
    print "writable:",writable
    print "exceptional",exceptional

    # When timeout reached , select return three empty lists
    if not (readable or writable or exceptional) :
        print "Time out ! "
        break;
    for s in readable :
        if s is server:
            # A "readable" socket is ready to accept a connection
            connection, client_address = s.accept()
            print "    connection from ", client_address
            connection.setblocking(0)
            inputs.append(connection)
            message_queues[connection] = Queue.Queue()
            ...........................略

import socket

messages = ["This is the message" ,
            "It will be sent" ,
            "in parts "]

print "Connect to the server"

server_address = ("localhost",10001)

#Create a TCP/IP sock

socks = []

for i in range(10):
    socks.append(socket.socket(socket.AF_INET,socket.SOCK_STREAM))

for s in socks:
    s.connect(server_address)

counter = 0
for message in messages :
    #Sending message from different sockets
    for s in socks:
        counter+=1
        print "  %s sending %s" % (s.getpeername(),message+" version "+str(counter))
        s.send(message+" version "+str(counter))
    #Read responses on both sockets
    for s in socks:
        data = s.recv(1024)
        print " %s received %s" % (s.getpeername(),data)
        if not data:
            print "closing socket ",s.getpeername()
            s.close()