notifydict

A subclass of dictionary that notifies you of changes to it or its subdicts

>>> from notifydict import NotifyDict
>>> from __future__ import print_function
>>> callback = lambda key, value: print(key, value)
>>> orig = {'A':10, 'B':{'Ba':100, 'Bb':200}}
>>> d = NotifyDict(callback, orig)
>>> d['B']['Ba'] = 101
B/Ba 101

You can define qualified callbacks

>>> d = NotifyDict({'*'  : lambda key, value: printfunc("default", key, value), 
                    'B/*': lambda key, value: printfunc("subdict", key, value)}, orig)
>>> d['C'] = 9
default C 9
>>> d['B']['Bh'] = 8
subdict B/Bh 8

Other classes:

• ChangedDict
• HistoryDict