Python 3 Unix Sockets Example - http://www.velvetcache.org/2010/06/14/python-unix-sockets

client.py

#!/usr/bin/python
import socket
import os

#don't connect, just send, see what error we will get.

print("Starting...")
client = socket.socket(socket.AF_UNIX, socket.SOCK_DGRAM)
print("Ready.")
print("Ctrl-C to quit.")
print("Sending 'DONE' shuts down the server and quits.")
while True:
    try:
        x = input("> ")
        if "" != x:
            print("SEND:", x)
            client.sendto(x.encode('utf-8'),"/tmp/python_unix_sockets_example")
            if "DONE" == x:
                print("Shutting down.")
                break
    except KeyboardInterrupt as k:
        print("Shutting down.")
        client.close()
        break
print("Done")

server.py

# -*- coding: utf-8 -*-
import socket
import os

if os.path.exists("/tmp/python_unix_sockets_example"):
    os.remove("/tmp/python_unix_sockets_example")

print("Opening socket...")
server = socket.socket(socket.AF_UNIX, socket.SOCK_DGRAM)
server.bind("/tmp/python_unix_sockets_example")

print("Listening...")
while True:
    datagram = server.recv(1024)
    if not datagram:
        break
    else:
        print("-" * 20)
        print(datagram.decode('utf-8'))
        if "DONE" == datagram.decode('utf-8'):
            break
print("-" * 20)
print("Shutting down...")
server.close()
os.remove("/tmp/python_unix_sockets_example")
print("Done")