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sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM, socket.IPPROTO_UDP)
sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEPORT, 1)
sock.bind(('', 1900))
Specifically, the socket.SO_REUSEPORT option will allow others to also bind to the port. The OS will then just send each broadcast packet to each listening process.