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Description:

peepy 0.0.2

peepy
A simple Observer Pattern implementation with decorators
Installation
Simply instasll from pypi:
pip3 install peepy

Usage
Observables can be connected to bserver callbacks siply by callling the bind_to method or by using the observe, observe_dict and observer_function decorators
from peepy.Observables import Observable, ObservableDict, observe, observe_dict

foo = Observable('important object')
foo2 = Observable('important object 2')

@observe(foo, foo2)
def observer(label, old, new):
print('Changing {0}\'s value from {1} to {2}'.format(label, old, new))

foo.value = 'bar'
foo.value = 'baz'

foo2.value = foo

foo_dict = ObservableDict({'foo': 1, 'bar':{}})

@foo_dict.observer_function
def dict_observer(label, old, new):
print('Changing key {0} from {1} to {2}'.format(label, old, new))

foo_dict['foo'] = 2
foo_dict['foo2'] = 20
foo_dict['bar'] = {'baz':None}