py2_6.py

from header_utils import HEADER_SIZE
import socket

client_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
client_socket.connect((socket.gethostname(), 5555))

while True:
    message_size = client_socket.recv(HEADER_SIZE)
    if message_size:
        message_size = int(message_size.strip())
        message = client_socket.recv(message_size)
        print(message.decode('utf-8'))