basic_netcat.py

import socket
import time

IP = "127.0.0.1"
PORT = 9220


def receiv():
    data = None
    try:
        data = s.recv(1024)
        while True:
            data += s.recv(1024)
    except BlockingIOError:
        pass
    if data:
        print(data.decode("ascii"))


s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect((IP, PORT))
s.setblocking(False)
time.sleep(0.5)
receiv()
s.sendall(b"PLOP\n")
receiv()
s.shutdown(socket.SHUT_WR)