class Event: def __init__(self, subs: dict): self.subs = subs def info(self, msg): info = ( f"{msg} events", f"Now listening for {', '.join(self.get())} events", ) print("\n".join(info)) @property def pdirty(self): return self.subs["pdirty"] @property def ldirty(self): return self.subs["ldirty"] def get(self) -> list: return [k for k, v in self.subs.items() if v] def any(self) -> bool: return any(self.subs.values()) def add(self, event): self.subs[event] = True self.info(f"{event} added to") def remove(self, event): self.subs[event] = False self.info(f"{event} removed from")