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

0 vote90 views2 answers
Save strings with numpy savetext
Python
0 vote94 views1 answer
Static files not loading 404 error django
Python
0 vote126 views1 answer
Find Files With a Certain Extension in the Directory and Its Subdirectories in Python
Python
0 vote92 views1 answer
Download python 3.8
Python
4 votes92 views3 answers
Python dict comprehension
Python
0 vote98 views1 answer
Pandas_datareader
Python
1 vote88 views1 answer
Python function remove all whitespace from all character columns in dataframe
Python
0 vote131 views1 answer
Connect spark to postgres; connect spark to database
Python
1 vote105 views1 answer
Print value of tensor
Python
0 vote134 views1 answer
Load local data to django
Python Django