#!/bin/sh [ "$1" = python3-pypubsub ] || exit 0 python3 - << 'EOF' from pubsub import pub received = [] def on_message(msg): received.append(msg) pub.subscribe(on_message, "test.topic") pub.sendMessage("test.topic", msg="hello") assert received == ["hello"], f"Expected ['hello'], got {received}" pub.unsubscribe(on_message, "test.topic") pub.sendMessage("test.topic", msg="world") assert received == ["hello"], "Unsubscribed listener should not receive messages" print("python3-pypubsub OK") EOF