来源于Python socket – network programming tutorial 客户端
#Socket client example in python import socket #for sockets import sys #for exit #create an INET, STREAMing socket try: # 分别代表IPv4和TCP连接 s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) except socket.error: print 'Failed to create socket' sys.exit() print 'Socket Created' host = 'www.google.com'; port = 80; try: remote_ip = socket.gethostbyname( host ) except socket.gaierror: #could not resolve print 'Hostname could not be resolved. Exiting' sys.exit() #Connect to remote server s.connect((remote_ip , port)) print 'Socket Connected to ' + host + ' on ip ' + remote_ip #Send some data to remote server message = "GET / HTTP/1.1\r\n\r\n" try : #Set the whole string s.sendall(message) except socket.error: #Send failed print 'Send failed' sys.exit() print 'Message send successfully' #Now receive data reply = s.recv(4096) print reply s.close()服务端
import socket import sys from thread import * HOST = '' # Symbolic name meaning all available interfaces PORT = 8888 # Arbitrary non-privileged port s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) print 'Socket created' #Bind socket to local host and port try: s.bind((HOST, PORT)) except socket.error , msg: print 'Bind failed. Error Code : ' + str(msg[0]) + ' Message ' + msg[1] sys.exit() print 'Socket bind complete' #Start listening on socket s.listen(10) print 'Socket now listening' #Function for handling connections. This will be used to create threads def clientthread(conn): #Sending message to connected client conn.send('Welcome to the server. Type something and hit enter\n') #send only takes string #infinite loop so that function do not terminate and thread do not end. while True: #Receiving from client data = conn.recv(1024) reply = 'OK...' + data if not data: break conn.sendall(reply) #came out of loop conn.close() #now keep talking with the client while 1: #wait to accept a connection - blocking call conn, addr = s.accept() print 'Connected with ' + addr[0] + ':' + str(addr[1]) #start new thread takes 1st argument as a function name to be run, second is the tuple of arguments to the function. start_new_thread(clientthread ,(conn,)) s.close()