NCJ-Server.py

#!/usr/bin/python3.6

import socket
import sys

HOST = "127.0.0.1"
PORT = None

def start_server():

    with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:
        sock.bind((HOST, PORT))
        sock.listen()

        print("Now listening on {}:{}".format(HOST, PORT ))

        try:
            while True:
                conn, addr = sock.accept()

                with conn:
                    print("Connection from {}".format(addr))
                    info = conn.recv(1024)
                    parsed = info.decode().split(' ')
                    if parsed[0] == "GET":
                        filepath = parsed[1]
                        print("Sending file from: {}".format(filepath))
                        with open(filepath, "rb") as fp:
                            data = fp.read()
                            conn.sendall(data)
                            print("Sent file.")
        except KeyboardInterrupt:
            print("Exiting. Goodbye")
            exit(0)


if __name__ == "__main__":
    if len(sys.argv) < 2:
        print("Please specify server port...\nExiting")
        exit(1)
    portStr = sys.argv[1]
    try:
        PORT = int(portStr)
        start_server()
    except Exception as e:
        print(e)


#https://realpython.com/python-sockets/