On Wed, 5 Jun 2013 09:10:54 -0700
Benjamin Peterson <[email protected]> wrote:
> I (and Guido) are accepting PEP 442 (Safe object finalization) on the
> condition that finalizers are only ever called once globally.
Ok, so there's an issue with that condition: it can't be upholded on
non-GC objects. Creating a non-GC object is quite obscure and rare,
though, since it requires basically a class with no __dict__ and an
empty __slots__:
class C:
__slots__ = ()
survivors = []
def __del__(self):
self.survivors.append(self)
In this case, a C instance's __del__ will be called every time
destruction is attempted, not only once. Is that a realistic problem?
Regards
Antoine.
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