codesys nvl reading

"""
Testcode for codesys to receive nvl broadcast

- Litte endian
"""
import socket
import struct


def recv_nvl(st, ip="0.0.0.0", port=1202):
    with socket.socket(socket.AF_INET, socket.SOCK_DGRAM) as sock:
        sock.bind((ip, port))
        while True:
            data, addr = sock.recvfrom(1024)
            try:
                print(st.unpack(data[-st.size:]))
            except ValueError:
                continue


if __name__ == "__main__":
    # receiving data
    # bool, bool, float
    my_struct = struct.Struct("<2?f")
    try:
        recv_nvl(my_struct)
    except KeyboardInterrupt:
        pass