python2-socket-client.py

import socket, io, struct, time

s = socket.socket() # defaults family AF_INET and type SOCK_STREAM (tcp)


HOST = ""# "192.168.1.39" # computer's ip address
PORT = 51215 # port number that computer will listen
s.connect((HOST,PORT))

try:
    with open('./send_data/profile.jpg', 'rb') as file:
        data = file.read(1024)
        while data:
            s.send(data)
            data = file.read(1024)
    print "File was sent."
finally:
    s.close()

print "Done."

python3-socket-server.py

import socketserver
import numpy as np
import cv2

class FileTCPHandler(socketserver.StreamRequestHandler):
    """
    The request handler class for our server.

    It is instantiated once per connection to the server, and must
    override the handle() method to implement communication to the
    client.
    """
    def setup(self):
        super(FileTCPHandler, self).setup()
        self.received_data_file = open("received_data_handler.txt", 'wb')
        print("File was opened")

    def handle(self):
        self.data = ''
        self.data = self.rfile.read(1024)
        while self.data:

            first_i = self.data.decode('cp437').find('FILE_START')
            last_i = self.data.decode('cp437').find('FILE_END')
            if first_i != -1 and last_i != -1:
                f_content = self.data[first_i + len('FILE_START') : last_i]
                self.data = self.data[last_i + len('FILE_END') : ]
                
                image = cv2.imdecode(np.fromstring(f_content, dtype=np.uint8), flags = 1)
                cv2.imshow('image', image)
                cv2.waitKey(1)

            self.data += self.rfile.read(1024)
        cv2.destroyAllWindows()
    def finish(self):
        super(FileTCPHandler, self).finish()
        self.received_data_file.close()
        print("File was closed.")



server = socketserver.TCPServer(('', 51215), FileTCPHandler)
server.serve_forever()