[mod_python] Circular references starting from the request object are not collected

thats not a weakref of the request object, thats the request object
pointing to a weakref of *your* object, which effectively breaks the
circular reference.

request <-- (strong ref) --
        --- (weak ref) --> yourobject


>
> Mike Bayer wrote :
>>
>> workaround: use a weakref for one side of the circular reference.
>>
>> import weakref
>> req.foobar = weakref.ref(myfoobar)
>
> Indeed, I thought about using a weakref, alas the request object cannot be
> weak referenced (there again, native code must implement a few trick to
> support weak references).
>
> Regards,
>
> Nicolas
>
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