Pythonic way to handle/spread alerts class in multiple modules

[Gribouillis]

You can use @property to define attributes that cannot be written. For example

class MyBorg:
    __shared = {
        '_alert_one': [],
        '_alert_two': [],
    }
    
    def __init__(self):
        self.__dict__ = self.__shared

    @property
    def alert_one(self):
        return self._alert_one

    @property
    def alert_two(self):
        return self._alert_two


b = MyBorg()
b.alert_one.append('spam')

c = MyBorg()
print(c.alert_one) # <--- prints ['spam']

# One cannot set the attribute
# c.alert_one = 'bar'  # raises AttributeError