server.py

import pickle
import socket
import struct
import cv2

HOST = ''
PORT = 8089

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print('Socket created')

s.bind((HOST, PORT))
print('Socket bind complete')
s.listen(10)
print('Socket now listening')

conn, addr = s.accept()
data = b''  
payload_size = struct.calcsize("=I")  
print("Con from " + str(addr))
while True:

    # Retrieve message size
    while len(data) < payload_size:
        data += conn.recv(4096)

    packed_msg_size = data[:payload_size]
    data = data[payload_size:]
    msg_size = struct.unpack("=I", packed_msg_size)[0]  
    # Retrieve all data based on message size
    print(msg_size)
    while len(data) < msg_size:
        data += conn.recv(4096)
    frame_data = data[:msg_size]
    data = data[msg_size:]
    # Extract frame
    frame = pickle.loads(frame_data)
    # Display
    frame = cv2.resize(frame, (480, 288))
    cv2.imshow('frame', frame)
    cv2.waitKey(1)