Steven D'Aprano wrote:
On Sun, 23 Nov 2008 01:18:17 -0800, bearophileHUGS wrote:
Stef Mientki:
I would like to detect if a dictionary has been changed. So I would
like to have a modified-flag.
A solution is of course to create a SDict class, that works like a
normal dict, and also watches for changes and has an extra boolean
attribute.
What does the S stand for?
Untested and possibly incomplete:
thanks guys,
the code below looks what I'm looking for.
cheers,
Stef
def factory(methodname, cls=dict, flag=True):
def method(self, *args, **kwargs):
self.modified = flag
return getattr(cls, methodname)(self, *args, **kwargs)
return method
class SDict(dict):
__init__ = factory('__init__', flag=False)
__setitem__ = factory('__setitem__')
__delitem__ = factory('__delitem__')
clear = factory('clear')
pop = factory('pop')
popitem = factory('popitem')
setdefault = factory('setdefault')
update = factory('update')
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