Manavan wrote:
Hello everyone,
Since the real world objects often needs to be deleted even if they
have some reference from some other object, I am going to use this
approach to better model this situation, by cleaning up the attributes
and assigning self.__class__ to a different class.
Any comment on this approach.
It might be easier to give the class a status variable so instances can
be de-activated without destroying info and perhaps re-activated.
class Deleted(object):
pass
class RealWorldObj(object):
def __init__(self, *args):
self.attrs = args
def getAttrs(self,):
return self.attrs
def delete(self,):
del self.attrs
self.__class__ = Deleted
a = RealWorldObj(1,2,3)
print a.attrs
(1, 2, 3)
a.delete()
a
<__main__.Deleted object at 0x893ae2c>
a.attrs
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
AttributeError: 'Deleted' object has no attribute 'attrs'
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