Python3x socket example

client.py

import socket
import sys


def get_constants(prefix):
    """Create a dictionary mapping socket module constants to their names."""
    return dict((getattr(socket, n), n)
                for n in dir(socket)
                if n.startswith(prefix)
                )


families = get_constants('AF_')
types = get_constants('SOCK_')
protocols = get_constants('IPPROTO_')

# Create a TCP/IP socket
sock = socket.create_connection(('localhost', 10000))


try:

    # Send data
    message = 'Merhaba Dünya'
    print('Gönderilen Veri :  "%s"' % message)
    sock.sendall(message.encode('utf-8'))

    amount_received = 0
    amount_expected = len(message)

    while amount_received < amount_expected:
        data = sock.recv(16)
        amount_received += len(data)
        print('Geri Gelen Veri :  "%s"' % data)

finally:
    print('Socket kapandı!')
    sock.close()

server.py

import socket
import sys

# Create a TCP/IP socket
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)

# Bind the socket to the address given on the command line
server_address = ('localhost', 10000)
sock.bind(server_address)

print('Server çalışmaya başladı %s port bilgisi : %s' % sock.getsockname())
sock.listen(1)

while True:
    connection, client_address = sock.accept()
    try:
        print('Baglanan Kullanici Baglanti Adresi : ', client_address)
        while True:
            data = connection.recv(16)
            if data:
                connection.sendall(data)
                print('Başarıyla şunu yolladı :  "%s"' % data)
            else:
                connection.close()
                break
    finally:
        connection.close()