Сокеты (простые примеры)

Простые примеры по работе с UDP и TCP-сокетами для Python. Возможны незначительные вариации синтаксиса между 2.7 и 3 версией python.

• UDP - half-duplex datagram
  • Server

from socket import *

u = socket(AF_INET, SOCK_DGRAM) u.bind(("0.0.0.0",1234)) // ip-port tuple to bind server

while 1:

    message,sender= u.recvfrom(1024)
    print 'Client' + str(sender) + ' said: ' + message
    if message == :
            break

Client ============================================= from socket import *

u = socket(AF_INET, SOCK_DGRAM) u.sendto("Hello world!", ("1.2.3.4",1234)) // ip-port tuple of server

TCP - full-duplex stream Server ============================================= from socket import *

t = socket(AF_INET, SOCK_STREAM) t.bind(("0.0.0.0",1234)) t.listen() c = t.accept() c c[0].recv(200)

  'jellojellojello'

c[0].send(b"Hi")

Client ============================================== from socket import * t = socket(AF_INET, SOCK_STREAM) t.connect(("1.2.3.4",1234)) socket.error: [Errno 111] Connection refused

t.send(b"jello") t.recv(10)

while 1:

    t.send(b"jello")

x.close()