[Python-Dev] Better module shutdown procedure
Antoine Pitrou
solipsis at pitrou.net
Thu Oct 15 14:42:51 CEST 2009
Le 2009年10月14日 18:27:37 -0500, Daniel Stutzbach a écrit :
>> Here is my understanding of the proposed procedure:
>> 1. Replace modules in sys.modules with weakrefs 2. Run the garbage
> collector
> 3. Replace globals in any remaining modules with None 4. Run the garbage
> collector
>> Is it possible for a __del__ method to be called in step 4 or not? I am
> still unclear on this point. :-)
If an object is holding a reference to a module (e.g. self._sys = sys),
then yes it should be possible because the reference has been creating a
cycle.
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