Sample client I created to validate the client-server hacker-rank problem

client.py

#!/usr/bin/env python3
import sys, threading, socket

def read_all_from_connection(connection):
    raw_message = []
    message = ''

    while 1:
        data = connection.recv(1024)
        if not data or data == '':
            break
        raw_message.append(data)
        messgae = b''.join(raw_message).decode()
        if 'END' in message:
            break
    return b''.join(raw_message).decode()

def send_stdin(connection):
    lines = sys.stdin.readlines()
    for line in lines:
        # connection.send((line + '\n').encode())
        connection.send(line.encode())

if __name__ == '__main__':
    sock = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
    sock.connect('./socket')
    send_stdin(sock)
    result = read_all_from_connection(sock)
    print(result)
    sock.close()