Update with pickle

[Leif K-Brooks]

Nicolas Fleury wrote:
> I want to update the content of an object with a dumped object of the
> same type so that all reference to existing object are still valid.

Add interfaces to your object's class for mutability rather than using a 
low-level hack. Something like this (untested):


class cls(object):
	__slots__ = ('foo')
	def __init__(self, foo=None):
		self.foo = foo

	def set_foo(self, foo):
		self.foo = foo


foo = cls(42)
bar = foo
print bar.foo # 42
foo.set_foo(43)
print bar.foo # 43