Messing with the GC

Steven D'Aprano steve+comp.lang.python at pearwood.info
Sat Jan 19 17:34:53 CET 2013


On Sat, 19 Jan 2013 16:24:37 +0000, Steven D'Aprano wrote:

> On Sat, 19 Jan 2013 14:47:16 +0000, Jens Thoms Toerring wrote:
> 
>> Ok, the destrucor for the first instance of the X class is called only
>> after printing out "After", so the GC didn't delete the object before.
>> But then there are obviously no calls of the destructors of neither the
>> second instance of the X class nor of the Y class instance. Shouldn't
>> they be invoked before the program ends?
> 
> You should avoid __del__ destructors whenever not absolutely necessary.

And here is another opinion: you should avoid cycles, rather the __del__.

http://eli.thegreenplace.net/2009/06/12/safely-using-destructors-in-python/





-- 
Steven



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