Socket won't unbind from address when socket is terminated

[Karin Layton]

After my successive failures using bluetooth to get my wipy's to communicate, I switched to using wifi and sockets. It does work, however using basically example code from the documentation I cannot soft reset and rerun the module without getting the error (from server wipy):
OSError: [Errno 112] EADDRINUSE

code used:
client:

def socket_thread(p):
    sconn =True
    while sconn:
        # Wait for any action to happen infinitely
        l = p.poll()

        # Start processing the actions happened
        for t in l:
            # First element of the returned tuple is the socket itself
            sock = t[0]
            # Second element of the returned tuple is the events happened
            event = t[1]

            # If any error or connection drop happened close the socket
            if(event & uselect.POLLERR or event & uselect.POLLHUP):
                sock.close()
                sconn = False
                continue

            # If the socket is writable then send some data
            # The socket becomes writable if the connect() was successfull
            if(event & uselect.POLLOUT):
                # If any error occurs during sending here, do "nothing", poll() will return with error event, close the socket there
                try:
                    sock.send("Data to send")
                    # We only want to send one message on this socket, in the future wait only for new incoming messages
                    p.modify(sock, uselect.POLLIN | uselect.POLLHUP | uselect.POLLERR)
                except:
                    pass


            # If any new data is received then get it
            if(event & uselect.POLLIN):
                # If any error occurs during receiving here, do "nothing", poll() will return with error event, close the socket there
                try:
                    r = sock.recv(12)
                    # If recv() returns with 0 the other end closed the connection
                    if len(r) == 0:
                        sock.close()
                        sconn = False
                        continue
                    else:
                        # Do something with the received data...
                        print("Data received: " + str(r))
                except:
                    pass
def makesockets():
    telem = socket.socket()
    telem.setblocking(False)

    # Create a new poll object
    p = uselect.poll()
    # Register the sockets into the poll object, wait for all kind of events
    p.register(telem, uselect.POLLIN | uselect.POLLOUT | uselect.POLLHUP | uselect.POLLERR)
    try:
        telem.connect(socket.getaddrinfo("192.168.4.1", 1235)[0][-1])
        print('socket created')
    except OSError as e:
            if e.args[0] != uerrno.EINPROGRESS:
                raise
    _thread.start_new_thread(socket_thread, (p,))

server:

def client_thread(clientsocket):
    # Receive maxium of 12 bytes from the client
    r = clientsocket.recv(12)

    # If recv() returns with 0 the other end closed the connection
    if len(r) == 0:
        clientsocket.close()
        return
    else:
        # Do something wth the received data...
        print("Received: {}".format(str(r)))

    # Sends back some data
    clientsocket.send('nice')

    # Close the socket and terminate the thread
    clientsocket.close()

# Set up server socket
def createsocket():
    serversocket = usocket.socket(usocket.AF_INET, usocket.SOCK_STREAM)
    serversocket.setsockopt(usocket.SOL_SOCKET, usocket.SO_REUSEADDR, 1)
    serversocket.bind(("192.168.4.1", 1235))
    serversocket.settimeout(100)
    serversocket.listen(1)
    (clientsocket, address) = serversocket.accept()
    _thread.start_new_thread(client_thread, (clientsocket,))

[Karin Layton]

I tried adding that but it was unsuccessful- however, the repl is staying open (not giving me a >>>) on my server after receiving a message, so it isn't finishing out whatever it's stuck open doing I think. I don't see any reason why it shouldn't finish out though? Doesn't the clientsocket.close() kill the thread?

[Gijs]

You can re-initialize the socket after closing it by calling telem= socket.socket() again. This should prevent the error you are getting