__parent__ - like attribute?
python at dylanreinhardt.com
Sun Jan 19 02:23:45 CET 2003
Seems like this should be easy, but I'm having a tough time figuring out
how to change an attribute in a parent object *as a side effect* of a
method called on a subobject.
An quick example:
self.stuff = eggs()
self.changed = 0
# after we've done the main part of our work,
# signal parent object that information has changed
self.__some_namespace_voodoo__.changed = 1
a = spam()
b = spam()
x = a.stuff.do_stuff() # <--- should set value of a.changed to 1
x = b.stuff.do_stuff() # <--- should set value of b.changed to 1
If this looks like manipulation of the _p_changed attribute in ZODB, it's
not a coincidence... that's what I'm hoping to use this for. I realize I
could pull a reference to a from globals() assuming I know the parent class
is called "a" or "b", but I'm hoping there's a way to go about this without
storing the parent name in every sub-object.
Any pointers and/or nudges in the right direction will be greatly appreciated.
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