Example for SO_REUSEPORT - Start multiple instances of this script and connect to them via shared port 8080: $ echo data | nc localhost 8080

so_reuseport.py

#!/usr/bin/env python
"""
Example for SO_REUSEPORT

Usage:
Start multiple instances of this script and connect
to them via shared port 8080: $ echo data | nc localhost 8080
"""


import os
import uuid
import socket

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
s.bind(('0.0.0.0', 8080))
s.listen(1)
print('PID: {}'.format(os.getpid()))

while True:
    conn, addr = s.accept()
    data = conn.recv(1024)
    conn.send(str(uuid.uuid4()))
    print("Received request from {}:{}".format(addr[0], addr[1]))
    conn.close()