Python observer pattern

class Event(object):
    pass

class Observable(object):
    def __init__(self):
        self.callbacks = []
    def subscribe(self, callback):
        self.callbacks.append(callback)
    def fire(self, **attrs):
        e = Event()
        e.source = self
        for k, v in attrs.iteritems():
            setattr(e, k, v)
        for fn in self.callbacks:
            fn(e)

Source: stackoverflow.com

Similar codes

47 votes165 views3 answers
How to change an integer to a string in python permanently
Python
0 vote160 views1 answer
Get admin url of instance django
Python
1 vote161 views1 answer
Python try except continue loop
Python
0 vote157 views1 answer
Seaborn documentation x axis range
Python
2 votes163 views2 answers
Python ping api
Python
1 vote194 views1 answer
Get name of month python
Python
0 vote164 views1 answer
How to auto create a three dimensional array in python
Python
1 vote169 views1 answer
Pydotprint
Python
1 vote209 views1 answer
Numpy series reset index
Python
0 vote157 views1 answer
Get list of users django
Python