Syntax error for "root = Tk()"

[deanhystad]

Do you have a network connection on your computer configured to have a static IP address on the 192.168.0 subnet? sock.sendto() quietly fails if it cannot send or nobody is listening. You don't know if the message was received until you get back a response, and your program is not getting a response.

If you want a smaller program to test with, this program just sends the MAC command and reads the response:

import socket


def empty_read_buffer(sock):
    try:
        while True:
            sock.recv(4096)
    except TimeoutError:
        pass


IP = '192.168.0.168'
PORT = 50000
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.settimeout(0.2)

empty_read_buffer(sock)
msg = b'MAC' + bytes([0]*29)   
for _ in range(5):
    sock.sendto(msg, (IP, PORT))
    try:
        reply = sock.recv(32)
        print(reply)
        if reply and reply[:3] == msg[:3]:
            break
    except TimeoutError:
        pass

else:
    print("Failed to read response.")