tun2proxy/tests/manual-tests/half-open-close-client/client.py

import socket
import time
import sys

with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as s:
    ip, port = sys.argv[1].split(':', 1)
    port = int(port)
    s.connect((ip, port))
    s.sendall('I am closing the write end, but I can still receive data'.encode())
    s.shutdown(socket.SHUT_WR)
    while True:
        data = s.recv(1024)
        if not data:
            break
        print(data.decode())